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Note: This page contains sample records for the topic "displacement power factor" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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1

Power Factor Compensation (PFC) Power Factor Compensation  

E-Print Network [OSTI]

Power Factor Compensation (PFC) Power Factor Compensation The power factor (PF) is defined as the ratio between the active power and the apparent power of a system. If the current and voltage are periodic with period , and [ ), then the active power is defined by ( ) ( ) (their inner product

Knobloch,Jürgen

2

Key Factors in Displacement Ventilation Systems for Better IAQ  

E-Print Network [OSTI]

This paper sets up a mathematical model of three-dimensional steady turbulence heat transfer in an air-conditioned room of multi-polluting heat sources. Numerical simulation helps identify key factors in displacement ventilation systems that affect...

Wang, X.; Chen, J.; Li, Y.; Wang, Z.

2006-01-01T23:59:59.000Z

3

Power Factor Reactive Power  

E-Print Network [OSTI]

power: 130 watts Induction motor PSERC Incandescent lights 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0 power: 150 watts #12;Page 4 PSERC Incandescent Lights PSERC Induction motor with no load #12;Page 5 Incandescent Lights #12;Page 7 PSERC Incandescent lights power: Power = 118 V x 1.3 A = 153 W = 0.15 kW = power

4

Power Factor Improvement  

E-Print Network [OSTI]

Power factor control is a necessary ingredient in any successful Energy Management Program. Many companies are operating with power factors of 70% or less and are being penalized through the electrical utility bill. This paper starts by describing...

Viljoen, T. A.

1979-01-01T23:59:59.000Z

5

Numerical Simulation of a Displacement Ventilation System with Multi-heat Sources and Analysis of Influential Factors  

E-Print Network [OSTI]

Doctor Instructor Professor The key laboratory of clean coal power generation and combustion technology of the ministry of education, southeast university College of energy sources & environment, Inner Mongolia University of Science & Technology...ICEBO2006, Shenzhen, China Maximize Comfort: Temperature, Humidity and IAQ Vol.I-7-1 Numerical Simulation of a Displacement Ventilation System with Multi-heat Sources and Analysis of Influential Factors Xuan Wu Jingfang Gao Wenfei Wu...

Wu, X.; Gao, J.; Wu, W.

2006-01-01T23:59:59.000Z

6

Guidelines for Power Factor Improvement Projects  

E-Print Network [OSTI]

Power factor is an indication of electrical system efficiency. Low power factor, or low system efficiency, may be due to one or more causes, including lightly loaded transformers, oversized electric motors, and harmonic-generating non-linear loads...

Massey, G. W.

7

SciTech Connect: Industrial Power Factor Analysis Guidebook.  

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

factor is a way of measuring the percentage of reactive power in an electrical system. Reactive power represents wasted energy--electricity that does no useful work because the...

8

Human Factors Aspects of Power System Flow Animation  

E-Print Network [OSTI]

into utility control centers. For example, [1] and [2] describe the on-line usage of animated flows, voltageHuman Factors Aspects of Power System Flow Animation Douglas A. Wiegmann, Gavin R. Essenberg flow information, including transmission line MW flow and power transfer distribution factor (PTDF

9

Reducing Power Factor Cost | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdfEnergyDepartmentEnergy DataRemediated |Reducing LED Costs ThroughReducing Power

10

Nuclear Power - Control, Reliability and Human Factors  

E-Print Network [OSTI]

Instrumentation and Control 49 H.M. Hashemian Chapter 4 Design Considerations for the Implementation of a Mobile IP Telephony System in a Nuclear Power Plant 67 J. Garc?a-Hern?ndez, J. C. Vel?zquez- Hern?ndez, C. F. Garc?a-Hern?ndez and M. A. Vallejo-Alarc?n... Reliability K s e n i i a Sapoz h n i k o v a and Roald Tayma n o v D.I.Mendeleyev Institute for Metrology, Russia 1. Introduction At present, a great number of embedded sens o r devi c es provi d e monito r i n g of operat i n g condi t io n...

11

SciTech Connect: Generalized displacement correlation method...  

Office of Scientific and Technical Information (OSTI)

Journal Article: Generalized displacement correlation method for estimating stress intensity factors Citation Details In-Document Search Title: Generalized displacement correlation...

12

Utility & Regulatory Factors Affecting Cogeneration & Independent Power Plant Design & Operation  

E-Print Network [OSTI]

UTILITY & REGULATORY FACTORS AFFECTiNG COGENERATION & INDEPENDENT POWER PLANT DESIGN & OPERATION Richard P. Felak General Electric Company Schenectady, New York ABSTRACT In specifying a cogeneration or independent power plant, the owner... should be especially aware of the influences which electric utilities and regulatory bodies will have on key parameters such as size, efficiency, design. reliability/ availabilitY, operating capabilities and modes, etc. This paper will note examples...

Felak, R. P.

13

Power factor and harmonic distortion characteristics of energy efficient lamps  

SciTech Connect (OSTI)

This paper evaluates the performance of a new class of lamps which are generally classified as the energy-saving lamps. It is shown that, when compared with the incandescent lamps, these lamps indeed consume less real power and have higher relative illumination. However, the energy-saving lamps operate at a low power factor and produce current distortion which are much higher than the distortion produced by the traditional incandescent lamps.

Etezadi-Amoli, M.; Florence, T.

1989-07-01T23:59:59.000Z

14

Environmental Factors Affecting Tropical Cyclone Power Dissipation KERRY EMANUEL  

E-Print Network [OSTI]

- son 1974; Webster et al. 2005), and the Accumulated Cyclone Energy (ACE) index (Bell et al. 2000, the PDI is also accumulated over each year. Annually accumulated integral metrics such as ACE and PDI showEnvironmental Factors Affecting Tropical Cyclone Power Dissipation KERRY EMANUEL Program

Emanuel, Kerry A.

15

Lateral displacement and rotational displacement sensor  

DOE Patents [OSTI]

A position measuring sensor formed from opposing sets of capacitor plates measures both rotational displacement and lateral displacement from the changes in capacitances as overlapping areas of capacitors change. Capacitances are measured by a measuring circuit. The measured capacitances are provided to a calculating circuit that performs calculations to obtain angular and lateral displacement from the capacitances measured by the measuring circuit.

Duden, Thomas

2014-04-22T23:59:59.000Z

16

SUBMITTED TO IEEE TRANSACTIONS ON POWER SYSTEMS, FEBRUARY 2002 1 Human Factors Aspects of Power System  

E-Print Network [OSTI]

either as numerical fields on one-line diagrams, or by tabular list displays. Additionally, in a utility with human factors aspects of utilizing color contours to visualize electric power system bus voltage the needs of a vertically integrated utility, with restructuring they are increasingly inadequate

17

Factors driving wind power development in the United States  

SciTech Connect (OSTI)

In the United States, there has been substantial recent growth in wind energy generating capacity, with growth averaging 24 percent annually during the past five years. About 1,700 MW of wind energy capacity was installed in 2001, while another 410 MW became operational in 2002. This year (2003) shows promise of significant growth with more than 1,500 MW planned. With this growth, an increasing number of states are experiencing investment in wind energy projects. Wind installations currently exist in about half of all U.S. states. This paper explores the key factors at play in the states that have achieved a substantial amount of wind energy investment. Some of the factors that are examined include policy drivers, such as renewable portfolio standards (RPS), federal and state financial incentives, and integrated resource planning; as well as market drivers, such as consumer demand for green power, natural gas price volatility, and wholesale market rules.

Bird, Lori A.; Parsons, Brian; Gagliano, Troy; Brown, Matthew H.; Wiser, Ryan H.; Bolinger, Mark

2003-05-15T23:59:59.000Z

18

Human Factors Considerations in New Nuclear Power Plants: Detailed Analysis.  

SciTech Connect (OSTI)

This Nuclear Regulatory Commission (NRC) sponsored study has identified human-performance issues in new and advanced nuclear power plants. To identify the issues, current industry developments and trends were evaluated in the areas of reactor technology, instrumentation and control technology, human-system integration technology, and human factors engineering (HFE) methods and tools. The issues were organized into seven high-level HFE topic areas: Role of Personnel and Automation, Staffing and Training, Normal Operations Management, Disturbance and Emergency Management, Maintenance and Change Management, Plant Design and Construction, and HFE Methods and Tools. The issues where then prioritized into four categories using a 'Phenomena Identification and Ranking Table' methodology based on evaluations provided by 14 independent subject matter experts. The subject matter experts were knowledgeable in a variety of disciplines. Vendors, utilities, research organizations and regulators all participated. Twenty issues were categorized into the top priority category. This Brookhaven National Laboratory (BNL) technical report provides the detailed methodology, issue analysis, and results. A summary of the results of this study can be found in NUREG/CR-6947. The research performed for this project has identified a large number of human-performance issues for new control stations and new nuclear power plant designs. The information gathered in this project can serve as input to the development of a long-term strategy and plan for addressing human performance in these areas through regulatory research. Addressing human-performance issues will provide the technical basis from which regulatory review guidance can be developed to meet these challenges. The availability of this review guidance will help set clear expectations for how the NRC staff will evaluate new designs, reduce regulatory uncertainty, and provide a well-defined path to new nuclear power plant licensing.

OHara,J.; Higgins, J.; Brown, W.; Fink, R.

2008-02-14T23:59:59.000Z

19

Assessment of wind power predictability as a decision factor in the investment phase of wind farms  

E-Print Network [OSTI]

Assessment of wind power predictability as a decision factor in the investment phase of wind farms Antipolis, France. Abstract The ability to predict wind power production over the next few hours to days is prerequisites for the secure and economic operation of power systems with high wind power penetration. From

Paris-Sud XI, Université de

20

Precision displacement reference system  

DOE Patents [OSTI]

A precision displacement reference system is described, which enables real time accountability over the applied displacement feedback system to precision machine tools, positioning mechanisms, motion devices, and related operations. As independent measurements of tool location is taken by a displacement feedback system, a rotating reference disk compares feedback counts with performed motion. These measurements are compared to characterize and analyze real time mechanical and control performance during operation.

Bieg, Lothar F. (Albuquerque, NM); Dubois, Robert R. (Albuquerque, NM); Strother, Jerry D. (Edgewood, NM)

2000-02-22T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

Factors influencing the success of decentralised solar power systems in remote villages.  

E-Print Network [OSTI]

??This study investigates organisation and design factors of decentralised rural electrification through solar power in light of views from the World Bank, the Millennium Development (more)

Millinnger, Markus

2011-01-01T23:59:59.000Z

22

Power factor correction of an electrical drive system based on multiphase machines  

E-Print Network [OSTI]

Power factor correction of an electrical drive system based on multiphase machines Khoudir MAROUANI_tabache@yahoo.com Abstract--This paper deals with the energy efficiency improvement of an electrical drive which can be used both in wind energy conversion or motor drive applications. A power factor (PF) control scheme

Paris-Sud XI, Université de

23

Reliability of IGBT in a STATCOM for Harmonic Compensation and Power Factor Correction  

E-Print Network [OSTI]

Reliability of IGBT in a STATCOM for Harmonic Compensation and Power Factor Correction Lakshmi Gopi Oak Ridge, USA. Abstract--With smart grid integration, there is a need to characterize reliability of a power system by including reliability of power semiconductors in grid related applications

Tolbert, Leon M.

24

SiC MOSFET Based Single Phase Active Boost Rectifier with Power Factor Correction for Wireless Power Transfer Applications  

SciTech Connect (OSTI)

Wireless Power Transfer (WPT) technology is a novel research area in the charging technology that bridges the utility and the automotive industries. There are various solutions that are currently being evaluated by several research teams to find the most efficient way to manage the power flow from the grid to the vehicle energy storage system. There are different control parameters that can be utilized to compensate for the change in the impedance due to variable parameters such as battery state-of-charge, coupling factor, and coil misalignment. This paper presents the implementation of an active front-end rectifier on the grid side for power factor control and voltage boost capability for load power regulation. The proposed SiC MOSFET based single phase active front end rectifier with PFC resulted in >97% efficiency at 137mm air-gap and >95% efficiency at 160mm air-gap.

Onar, Omer C [ORNL] [ORNL; Tang, Lixin [ORNL] [ORNL; Chinthavali, Madhu Sudhan [ORNL] [ORNL; Campbell, Steven L [ORNL] [ORNL; Miller (JNJ), John M. [JNJ-Miller PLC] [JNJ-Miller PLC

2014-01-01T23:59:59.000Z

25

Human Factors Evaluation of Advanced Electric Power Grid Visualization Tools  

SciTech Connect (OSTI)

This report describes initial human factors evaluation of four visualization tools (Graphical Contingency Analysis, Force Directed Graphs, Phasor State Estimator and Mode Meter/ Mode Shapes) developed by PNNL, and proposed test plans that may be implemented to evaluate their utility in scenario-based experiments.

Greitzer, Frank L.; Dauenhauer, Peter M.; Wierks, Tamara G.; Podmore, Robin

2009-04-01T23:59:59.000Z

26

Optical displacement sensor  

DOE Patents [OSTI]

An optical displacement sensor is disclosed which uses a vertical-cavity surface-emitting laser (VCSEL) coupled to an optical cavity formed by a moveable membrane and an output mirror of the VCSEL. This arrangement renders the lasing characteristics of the VCSEL sensitive to any movement of the membrane produced by sound, vibrations, pressure changes, acceleration, etc. Some embodiments of the optical displacement sensor can further include a light-reflective diffractive lens located on the membrane or adjacent to the VCSEL to control the amount of lasing light coupled back into the VCSEL. A photodetector detects a portion of the lasing light from the VCSEL to provide an electrical output signal for the optical displacement sensor which varies with the movement of the membrane.

Carr, Dustin W. (Albuquerque, NM)

2008-04-08T23:59:59.000Z

27

Water displacement mercury pump  

DOE Patents [OSTI]

A water displacement mercury pump has a fluid inlet conduit and diffuser, a valve, a pressure cannister, and a fluid outlet conduit. The valve has a valve head which seats in an opening in the cannister. The entire assembly is readily insertable into a process vessel which produces mercury as a product. As the mercury settles, it flows into the opening in the cannister displacing lighter material. When the valve is in a closed position, the pressure cannister is sealed except for the fluid inlet conduit and the fluid outlet conduit. Introduction of a lighter fluid into the cannister will act to displace a heavier fluid from the cannister via the fluid outlet conduit. The entire pump assembly penetrates only a top wall of the process vessel, and not the sides or the bottom wall of the process vessel. This insures a leak-proof environment and is especially suitable for processing of hazardous materials.

Nielsen, Marshall G. (Woodside, CA)

1985-01-01T23:59:59.000Z

28

Water displacement mercury pump  

DOE Patents [OSTI]

A water displacement mercury pump has a fluid inlet conduit and diffuser, a valve, a pressure cannister, and a fluid outlet conduit. The valve has a valve head which seats in an opening in the cannister. The entire assembly is readily insertable into a process vessel which produces mercury as a product. As the mercury settles, it flows into the opening in the cannister displacing lighter material. When the valve is in a closed position, the pressure cannister is sealed except for the fluid inlet conduit and the fluid outlet conduit. Introduction of a lighter fluid into the cannister will act to displace a heavier fluid from the cannister via the fluid outlet conduit. The entire pump assembly penetrates only a top wall of the process vessel, and not the sides or the bottom wall of the process vessel. This insures a leak-proof environment and is especially suitable for processing of hazardous materials.

Nielsen, M.G.

1984-04-20T23:59:59.000Z

29

Optimization of wind turbine energy and power factor with an evolutionary computation algorithm  

E-Print Network [OSTI]

Optimization of wind turbine energy and power factor with an evolutionary computation algorithm the energy capture from the wind and enhance the quality of the power produced by the wind turbine, and harmonic distortion. As the generation of wind energy on an industrial scale is relatively new, the area

Kusiak, Andrew

30

Advance Three Phase Power Factor Correction Schemes for Utility Interface of Power Electronic Systems  

E-Print Network [OSTI]

systems, battery chargers and data centers etc. Also, high voltage DC (HVDC) systems employ rectifiers to convert ac input to DC output. HVDC is one example of the application of AC/DC conversion, in power system also, grid tie of two different power...

Albader, Mesaad

2014-07-30T23:59:59.000Z

31

Practical Formula for Bunch Power Loss in Resonators of Almost Arbitrary Quality Factor  

E-Print Network [OSTI]

SSC-N-142 Practical Formula for Bunch Power Loss in Resonators of Almost Arbitrary Quality Factor a resonant structure with impedance Z() = RS 1 + iQ r - r (1) then the power loss is [1] P = (cf0)2 m in the summation in Eq. (2) yield an accurate estimate for the power loss. If, on the other hand, ~() is very broad

Furman, Miguel

32

Heat Shock Factor 1 Is a Powerful Multifaceted Modifier of Carcinogenesis  

E-Print Network [OSTI]

Heat Shock Factor 1 Is a Powerful Multifaceted Modifier of Carcinogenesis Chengkai Dai,1 Luke: lindquist_admin@wi.mit.edu DOI 10.1016/j.cell.2007.07.020 SUMMARY Heat shock factor 1 (HSF1) is the master regula- tor of the heat shock response in eukaryotes, a very highly conserved protective mechanism. HSF1

Lindquist, Susan

33

Analysis of silicon carbide based semiconductor power devices and their application in power factor correction  

E-Print Network [OSTI]

cannot handle. The requirements include higher blocking voltages, switching frequencies, efficiency, and reliability. Material technologies superior to Si are needed for future power device developments. Silicon Carbide (SiC) based semiconductor devices...

Durrani, Yamin Qaisar

2005-11-01T23:59:59.000Z

34

Testing and Evaluation of a Power Factor Correction for Power-Savings Potential  

E-Print Network [OSTI]

was then reduced from 13.9 to 3.0 kVAR (kilo volts amps reactive), the apparent power was decreased from 17.5 to 11.0 kVA (kilo volts amps). and the current was reduced from 23.4 to 14.5 amps. The Ministry of Electricity & Water (MEW) in Kuwait is expected...

Alotaibi, A.

2011-01-01T23:59:59.000Z

35

DISPLACEMENT BASED SEISMIC DESIGN CRITERIA  

SciTech Connect (OSTI)

The USNRC has initiated a project to determine if any of the likely revisions to traditional earthquake engineering practice are relevant to seismic design of the specialized structures, systems and components of nuclear power plants and of such significance to suggest that a change in design practice might be warranted. As part of the initial phase of this study, a literature survey was conducted on the recent changes in seismic design codes/standards, on-going activities of code-writing organizations/communities, and published documents on displacement-based design methods. This paper provides a summary of recent changes in building codes and on-going activities for future codes. It also discusses some technical issues for further consideration.

HOFMAYER,C.H.

1999-03-29T23:59:59.000Z

36

The impact of offsite factors on the safety performance of small nuclear power plants  

SciTech Connect (OSTI)

The results of an analysis of the influence of offsite factors on small nuclear power-plant (SNPP) safety performance during postulated severe accidents are presented. Given the plant locations in the immediate vicinity of residential areas and the impossibility of accomplishing the expeditious evacuation of the public, the risk caused by an SNPP severe accident may be considerably less than that for such an event in a large nuclear power plant. 3 refs., 3 figs., 5 tabs.

Baranaev, Yu.D.; Viktorov, A.N. [Inst. of Physics and Power Engineering, Obninsk (Russian Federation)

1991-01-01T23:59:59.000Z

37

Power factor enhancement by inhomogeneous distribution of dopants in two-phase nanocrystalline systems  

E-Print Network [OSTI]

that allows for high thermoelectric power factors in two-phase materials that are heavily doped. The thermoelectric performance of a material is quantified by the dimensionless figure of merit 2 /ZT S T , where conductivity [6, 7]. This was achieved even for traditionally poor thermoelectric materials such as Si

38

Band structure engineering through orbital interaction for enhanced thermoelectric power factor  

E-Print Network [OSTI]

interaction on band structure is demonstrated for IV-VI thermoelectric semiconductors. For IV-VI materials, we thermoelectric performance has been demonstrated in the premier thermoelectric material, lead telluride (PbBand structure engineering through orbital interaction for enhanced thermoelectric power factor

Ceder, Gerbrand

39

Design of a Boost Power Factor Correction Converter Using Optimization Techniques Sergio Busquets-Monge1  

E-Print Network [OSTI]

-end converter with an input electromagnetic interference filter. The system design variables are first correction, boost, electromagnetic interference, electromagnetic compatibility. Paper presented at PESC, June of a boost power factor correction front-end converter with an input electromagnetic interference filter

Lindner, Douglas K.

40

A CycloDissipativity Condition for Power Factor Improvement in Electrical Circuits  

E-Print Network [OSTI]

A Cyclo­Dissipativity Condition for Power Factor Improvement in Electrical Circuits Romeo Ortega compensation problem for electrical circuits. Namely, we prove that a necessary condition for a (shunt of the source are functions of time and are denoted by the column vectors vs, is Rq . The load is described

Stankoviæ, Aleksandar

Note: This page contains sample records for the topic "displacement power factor" 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

Rank-Constrained Solutions to Linear Matrix Equations using PowerFactorization  

E-Print Network [OSTI]

Rank-Constrained Solutions to Linear Matrix Equations using PowerFactorization Authors: Justin P at Urbana-Champaign This is an author preprint of: J. P. Haldar, D. Hernando. "Rank-Constrained Solutions the IEEE. 1 #12;Abstract: Algorithms to construct/recover low-rank matrices satisfying a set of linear

Leahy, Richard M.

42

NONLINEAR-CARRIER CONTROL FOR HIGH-POWER-FACTOR RECTIFIERS BASED ON  

E-Print Network [OSTI]

, flyback, Cuk and Sepic converters offer the benefits of single-stage transformer isolation, voltage step-up-power- factor rectification. A simple exponential carrier waveform generator is described. Using the NLC con generator is discussed in Section 4. Design-oriented har- monic distortion analysis and modeling aspects

43

Resonant carrier scattering by core-shell nanoparticles for thermoelectric power factor enhancement  

E-Print Network [OSTI]

is the electrical conductivity, T is the absolute temperature, and j is the thermal conductivity, respectively by reducing the thermal conductivity via the introduction of additional phonon scat- tering in nanostructured predicted improved power factor by the modified density of states in low-dimensional materials

44

Displacement cascades in diatomic materials  

SciTech Connect (OSTI)

A new function, the specified-projectile displacement function p/sub ijk/ (E), is introduced to describe displacement cascades in polyatomic materials. This function describes the specific collision events that produce displacements and hence adds new information not previously available. Calculations of p/sub ijk/ (E) for MgO, Al/sub 2/O/sub 3/ and TaO are presented and discussed. Results show that the parameters that have the largest effect on displacement collision events are the PKA energy and the mass ratio of the atom types in the material. It is further shown that the microscopic nature of the displacement events changes over the entire recoil energy range relevant to fusion neutron spectra and that these changes are different in materials whose mass ratio is near one than in those where it is far from one.

Parkin, D.M.; Coulter, C.A.

1981-01-01T23:59:59.000Z

45

Displacement sensing system and method  

DOE Patents [OSTI]

A displacement sensing system and method addresses demanding requirements for high precision sensing of displacement of a shaft, for use typically in a linear electro-dynamic machine, having low failure rates over multi-year unattended operation in hostile environments. Applications include outer space travel by spacecraft having high-temperature, sealed environments without opportunity for servicing over many years of operation. The displacement sensing system uses a three coil sensor configuration, including a reference and sense coils, to provide a pair of ratio-metric signals, which are inputted into a synchronous comparison circuit, which is synchronously processed for a resultant displacement determination. The pair of ratio-metric signals are similarly affected by environmental conditions so that the comparison circuit is able to subtract or nullify environmental conditions that would otherwise cause changes in accuracy to occur.

VunKannon Jr., Robert S

2006-08-08T23:59:59.000Z

46

Literature Review of Displacement Ventilation  

E-Print Network [OSTI]

is dependent on the flow rate from the diffuser, the temperature difference, and the diffuser type. #0;? The thermal plumes and supply air from diffusers play an important role in the displacement ventilation. #0;? It is necessary to carefully control... systems, although there are differences depending on the control strategies and the type of HVAC systems. In the energy calculation by Niu (1994), it is shown that the annual energy consumption of displacement ventilation with a water- cooled ceiling...

Cho, S.; Im, P.; Haberl, J. S.

47

Band structure engineering through orbital interaction for enhanced thermoelectric power factor  

SciTech Connect (OSTI)

Band structure engineering for specific electronic or optical properties is essential for the further development of many important technologies including thermoelectrics, optoelectronics, and microelectronics. In this work, we report orbital interaction as a powerful tool to finetune the band structure and the transport properties of charge carriers in bulk crystalline semiconductors. The proposed mechanism of orbital interaction on band structure is demonstrated for IV-VI thermoelectric semiconductors. For IV-VI materials, we find that the convergence of multiple carrier pockets not only displays a strong correlation with the s-p and spin-orbit coupling but also coincides with the enhancement of power factor. Our results suggest a useful path to engineer the band structure and an enticing solid-solution design principle to enhance thermoelectric performance.

Zhu, Hong; Sun, Wenhao; Ceder, Gerbrand [Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (United States); Armiento, Rickard [Department of Physics, Chemistry and Biology (IFM), Linkping University, SE-58183 Linkping (Sweden); Lazic, Predrag [Theoretical Physics Division, Rudjer Boskovic Institute, Bijenicka Cesta 54, Zagreb (Croatia)

2014-02-24T23:59:59.000Z

48

Displacement Transfer Zone | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump to:52c8ff988c1Dering Harbor,Discount Power Jump to:Displacement Transfer Zone

49

Clean Cities Regional Support & Petroleum Displacement Awards...  

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

Clean Cities Regional Support & Petroleum Displacement Awards Clean Cities Regional Support & Petroleum Displacement Awards 2009 DOE Hydrogen Program and Vehicle Technologies...

50

Thermoelectric Generator (TEG) Fuel Displacement Potential using...  

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

(TEG) Fuel Displacement Potential using Engine-in-the-Loop and Simulation Thermoelectric Generator (TEG) Fuel Displacement Potential using Engine-in-the-Loop and Simulation...

51

Estimating carbon dioxide emission factors for the California electric power sector  

SciTech Connect (OSTI)

The California Climate Action Registry (''Registry'') was initially established in 2000 under Senate Bill 1771, and clarifying legislation (Senate Bill 527) was passed in September 2001. The Ernest Orlando Lawrence Berkeley National Laboratory (Berkeley Lab) has been asked to provide technical assistance to the California Energy Commission (CEC) in establishing methods for calculating average and marginal electricity emissions factors, both historic and current, as well as statewide and for sub-regions. This study is exploratory in nature. It illustrates the use of three possible approaches and is not a rigorous estimation of actual emissions factors. While the Registry will ultimately cover emissions of all greenhouse gases (GHGs), presently it is focusing on carbon dioxide (CO2). Thus, this study only considers CO2, which is by far the largest GHG emitted in the power sector. Associating CO2 emissions with electricity consumption encounters three major complications. First, electricity can be generated from a number of different primary energy sources, many of which are large sources of CO2 emissions (e.g., coal combustion) while others result in virtually no CO{sub 2} emissions (e.g., hydro). Second, the mix of generation resources used to meet loads may vary at different times of day or in different seasons. Third, electrical energy is transported over long distances by complex transmission and distribution systems, so the generation sources related to electricity usage can be difficult to trace and may occur far from the jurisdiction in which that energy is consumed. In other words, the emissions resulting from electricity consumption vary considerably depending on when and where it is used since this affects the generation sources providing the power. There is no practical way to identify where or how all the electricity used by a certain customer was generated, but by reviewing public sources of data the total emission burden of a customer's electricity supplier can b e found and an average emissions factor (AEF) calculated. These are useful for assigning a net emission burden to a facility. In addition, marginal emissions factors (MEFs) for estimating the effect of changing levels of usage can be calculated. MEFs are needed because emission rates at the margin are likely to diverge from the average. The overall objective of this task is to develop methods for estimating AEFs and MEFs that can provide an estimate of the combined net CO2 emissions from all generating facilities that provide electricity to California electricity customers. The method covers the historic period from 1990 to the present, with 1990 and 1999 used as test years. The factors derived take into account the location and time of consumption, direct contracts for power which may have certain atypical characteristics (e.g., ''green'' electricity from renewable resources), resource mixes of electricity providers, import and export of electricity from utility owned and other sources, and electricity from cogeneration. It is assumed that the factors developed in this way will diverge considerably from simple statewide AEF estimates based on standardized inventory estimates that use conventions inconsistent with the goals of this work. A notable example concerns the treatment of imports, which despite providing a significant share of California's electricity supply picture, are excluded from inventory estimates of emissions, which are based on geographical boundaries of the state.

Marnay, Chris; Fisher, Diane; Murtishaw, Scott; Phadke, Amol; Price, Lynn; Sathaye, Jayant

2002-08-01T23:59:59.000Z

52

Applying Human Factors Evaluation and Design Guidance to a Nuclear Power Plant Digital Control System  

SciTech Connect (OSTI)

The United States (U.S.) nuclear industry, like similar process control industries, has moved toward upgrading its control rooms. The upgraded control rooms typically feature digital control system (DCS) displays embedded in the panels. These displays gather information from the system and represent that information on a single display surface. In this manner, the DCS combines many previously separate analog indicators and controls into a single digital display, whereby the operators can toggle between multiple windows to monitor and control different aspects of the plant. The design of the DCS depends on the function of the system it monitors, but revolves around presenting the information most germane to an operator at any point in time. DCSs require a carefully designed human system interface. This report centers on redesigning existing DCS displays for an example chemical volume control system (CVCS) at a U.S. nuclear power plant. The crucial nature of the CVCS, which controls coolant levels and boration in the primary system, requires a thorough human factors evaluation of its supporting DCS. The initial digital controls being developed for the DCSs tend to directly mimic the former analog controls. There are, however, unique operator interactions with a digital vs. analog interface, and the differences have not always been carefully factored in the translation of an analog interface to a replacement DCS. To ensure safety, efficiency, and usability of the emerging DCSs, a human factors usability evaluation was conducted on a CVCS DCS currently being used and refined at an existing U.S. nuclear power plant. Subject matter experts from process control engineering, software development, and human factors evaluated the DCS displays to document potential usability issues and propose design recommendations. The evaluation yielded 167 potential usability issues with the DCS. These issues should not be considered operator performance problems but rather opportunities identified by experts to improve upon the design of the DCS. A set of nine design recommendations was developed to address these potential issues. The design principles addressed the following areas: (1) color, (2) pop-up window structure, (3) navigation, (4) alarms, (5) process control diagram, (6) gestalt grouping, (7) typography, (8) terminology, and (9) data entry. Visuals illustrating the improved DCS displays accompany the design recommendations. These nine design principles serve as the starting point to a planned general DCS style guide that can be used across the U.S. nuclear industry to aid in the future design of effective DCS interfaces.

Thomas Ulrich; Ronald Boring; William Phoenix; Emily Dehority; Tim Whiting; Jonathan Morrell; Rhett Backstrom

2012-08-01T23:59:59.000Z

53

Population Displacements Associated with Environmentally  

E-Print Network [OSTI]

Socio economic Impacts Enviro Impacts Dam Climate Change Fresh H20 Salinization Drought Flood infrastructure Climate Impact(s) Infrastructure development objectives Socio economic Impacts Enviro Impacts ­ Environmental impacts of major infrastructure projects 2 P l i di l i d i h l i f2. Population displacements

Columbia University

54

Primer on Durability of Nuclear Power Plant Reinforced Concrete Structures - A Review of Pertinent Factors  

SciTech Connect (OSTI)

The objective of this study was to provide a primer on the environmental effects that can affect the durability of nuclear power plant concrete structures. As concrete ages, changes in its properties will occur as a result of continuing microstructural changes (i.e., slow hydration, crystallization of amorphous constituents, and reactions between cement paste and aggregates), as well as environmental influences. These changes do not have to be detrimental to the point that concrete will not be able to meet its performance requirements. Concrete, however, can suffer undesirable changes with time because of improper specifications, a violation of specifications, or adverse performance of its cement paste matrix or aggregate constituents under either physical or chemical attack. Contained in this report is a discussion on concrete durability and the relationship between durability and performance, a review of the historical perspective related to concrete and longevity, a description of the basic materials that comprise reinforced concrete, and information on the environmental factors that can affect the performance of nuclear power plant concrete structures. Commentary is provided on the importance of an aging management program.

Naus, Dan J [ORNL

2007-02-01T23:59:59.000Z

55

Gas Density Fluctuations in the Perseus Cluster: Clumping Factor and Velocity Power Spectrum  

E-Print Network [OSTI]

X-ray surface brightness fluctuations in the core of the Perseus Cluster are analyzed, using deep observations with the Chandra observatory. The amplitude of gas density fluctuations on different scales is measured in a set of radial annuli. It varies from 8 to 12 per cent on scales of ~10-30 kpc within radii of 30-160 kpc from the cluster center and from 9 to 7 per cent on scales of ~20-30 kpc in an outer, 60-220 kpc annulus. Using a statistical linear relation between the observed amplitude of density fluctuations and predicted velocity, the characteristic velocity of gas motions on each scale is calculated. The typical amplitudes of the velocity outside the central 30 kpc region are 90-140 km/s on ~20-30 kpc scales and 70-100 km/s on smaller scales ~7-10 kpc. The velocity power spectrum is consistent with cascade of turbulence and its slope is in a broad agreement with the slope for canonical Kolmogorov turbulence. The gas clumping factor estimated from the power spectrum of the density fluctuations is low...

Zhuravleva, I; Arevalo, P; Schekochihin, A A; Allen, S W; Fabian, A C; Forman, W R; Sanders, J S; Simionescu, A; Sunyaev, R; Vikhlinin, A; Werner, N

2015-01-01T23:59:59.000Z

56

Free displacer and Ringbom displacer for a Malone refrigerator  

SciTech Connect (OSTI)

Malone refrigeration uses a liquid near its critical point (instead of the customary gas) as the working fluid in a Stirling, Brayton, or similar regenerative or recuperative cycle. Thus far, we have focused on the Stirling cycle, to avoid the difficult construction of the high-pressure-difference counterflow recuperator required for a Brayton machine. Our first Malone refrigerator used liquid propylene (C{sub 3}H{sub 6}) in a double-acting 4-cylinder Stirling configuration. First measurements with a free displacer used in a liquid working fluid are presented. The displacer was operated both in harmonic mode and in Ringbom mode, in liquid carbon dioxide. The results are in reasonable agreement with expectations.

Swift, G.W.; Brown, A.O.

1994-05-01T23:59:59.000Z

57

Design of an input filter for power factor correction (PFC) AC to DC converters employing an active ripple cancellation  

SciTech Connect (OSTI)

An active input filter for power factor correction (PFC) circuit employing ripple current cancellation is proposed to reduce the filter`s size and cost.Switching ripple current can be filtered by an active circuit from the line current. A single stage passive filter with the active filter compensation circuit, a high filter can be synthesized to meet the electromagnetic interference (EMI) and power factor requirements. Analysis of the active filter and design procedure are detailed. Simulation result is presented to verify the high order filter characteristics of proposed scheme.

Lee, D.Y.; Cho, B.H. [Seoul National Univ. (Korea, Republic of). Electrical Engineering Dept.

1996-12-31T23:59:59.000Z

58

Internally Displaced Persons in Nepal  

E-Print Network [OSTI]

Peace and Democracy in South Asia, Volume 1, Issue 2, 2005. Bandana Shrestha has been volunteering with the Nepal Institute of Peace, Kathmandu, as Programme Coordinator. Her email ID is: shrestha_bandana@yahoo.com. Som Niroula is Programme... Officer of the Nepal Institute of Peace. Email: niroulasom@yahoo.com. Internally Displaced Persons in Nepal BANDANA SHRESTHA & SOM NIROULA Background Nepal has been in an internal armed conflict since 1996 between the Communist Party...

Shrestha, Bandana; Niroula, Som

2005-01-01T23:59:59.000Z

59

Coupled diffusional/displacive transformations  

E-Print Network [OSTI]

), TRIP steels (transformation in- duced plasticity), ausforming steels (plastically deformed austenite prior to quenching) and dual phase steels (a mixture of ferrite + martensite obtained by quenching from the 1+ Q' field). a c b d Figure 1... Supersaturated Ferrite Plates 137 v Abstract The displacive transformation of austenite to ferrite in steels containing both substitutional and interstitial elements has been studied. The aim was to establish the conditions under which plates of the product phase...

Mujahid, Shafiq Ahmad

60

Updating Human Factors Engineering Guidelines for Conducting Safety Reviews of Nuclear Power Plants  

SciTech Connect (OSTI)

The U.S. Nuclear Regulatory Commission (NRC) reviews the human factors engineering (HFE) programs of applicants for nuclear power plant construction permits, operating licenses, standard design certifications, and combined operating licenses. The purpose of these safety reviews is to help ensure that personnel performance and reliability are appropriately supported. Detailed design review procedures and guidance for the evaluations is provided in three key documents: the Standard Review Plan (NUREG-0800), the HFE Program Review Model (NUREG-0711), and the Human-System Interface Design Review Guidelines (NUREG-0700). These documents were last revised in 2007, 2004 and 2002, respectively. The NRC is committed to the periodic update and improvement of the guidance to ensure that it remains a state-of-the-art design evaluation tool. To this end, the NRC is updating its guidance to stay current with recent research on human performance, advances in HFE methods and tools, and new technology being employed in plant and control room design. This paper describes the role of HFE guidelines in the safety review process and the content of the key HFE guidelines used. Then we will present the methodology used to develop HFE guidance and update these documents, and describe the current status of the update program.

O, J.M.; Higgins, J.; Stephen Fleger - NRC

2011-09-19T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

Water Mist Suppression in Conjunction with Displacement  

E-Print Network [OSTI]

Water Mist Suppression in Conjunction with Displacement Ventilation By Benjamin Piers Hume-2758 #12;#12;Displacement Water Mist System Masters of Fire Engineering Thesis 2003 i A man of genius makes Water Mist System Masters of Fire Engineering Thesis 2003 ii #12;Displacement Water Mist System Masters

Hickman, Mark

62

Effect of the energy dependence of the carrier scattering time on the thermoelectric power factor of quantum wells and nanowires  

E-Print Network [OSTI]

of Physics. [http://dx.doi.org/10.1063/1.4729381] The efficiency of a thermoelectric material is deter- minedEffect of the energy dependence of the carrier scattering time on the thermoelectric power factor thermoelectric performance of solid solutions CuGa1-xInxTe2 (x=0­1.0) Appl. Phys. Lett. 100, 231903 (2012

Anlage, Steven

63

Enhancement of the power factor in two-phase silicon-boron nanocrystalline alloys Dario Narducci,1,  

E-Print Network [OSTI]

will be discussed. I. INTRODUCTION The rush for high-efficiency thermoelectric materials has undergone a sudden quite differ whether high Z values are due to low thermal conductivities or to high power factors9 thermal resistances might promote the growth of films with different grain sizes and shapes. This

64

Frequency Scalable Non-Linear Waveform Generator for Mixed-Simal Power-Factor-Correction IC Controller'  

E-Print Network [OSTI]

Frequency Scalable Non-Linear Waveform Generator for Mixed-Simal Power-Factor-Correction IC derives a family of digital non-linear waveform generators fundamental to the developement of an adaptive-Signal IC Gontroller Block Diagram frequency scalable non-linear waveform generators for the IC controller

65

Energy Policy 35 (2007) 15841598 Public opinion about large offshore wind power: Underlying factors  

E-Print Network [OSTI]

Energy Policy 35 (2007) 1584­1598 Public opinion about large offshore wind power: Underlying opinion regarding offshore wind power based on a survey of residents near a proposed development off Cape reserved. Keywords: Wind power; Public opinion; Climate change 1. Introduction Public opposition has

Firestone, Jeremy

66

Application of positive matrix factorization to on-road measurements for source apportionment of diesel-and gasoline-powered vehicle emissions in Mexico City  

E-Print Network [OSTI]

of diesel- and gasoline-powered vehicle emissions in Mexico City D. A. Thornhill, A. E. Williams, T. B be low. The second figure shows the background versus diesel factors. There may be a slight horizontal factors. In this case, even when the diesel factor's contributions are very high, the background factor

Meskhidze, Nicholas

67

Software Enabled Virtually Variable Displacement Pumps -Theoretical and Experimental Studies  

E-Print Network [OSTI]

Software Enabled Virtually Variable Displacement Pumps - Theoretical and Experimental Studies the functional equivalent of a variable displacement pump. This approach combines a fixed displacement pump valve control, without many of the shortcomings of commercially available variable displacement pumps

Li, Perry Y.

68

Variable delivery, fixed displacement pump  

DOE Patents [OSTI]

A variable delivery, fixed displacement pump comprises a plurality of pistons reciprocated within corresponding cylinders in a cylinder block. The pistons are reciprocated by rotation of a fixed angle swash plate connected to the pistons. The pistons and cylinders cooperate to define a plurality of fluid compression chambers each have a delivery outlet. A vent port is provided from each fluid compression chamber to vent fluid therefrom during at least a portion of the reciprocal stroke of the piston. Each piston and cylinder combination cooperates to close the associated vent port during another portion of the reciprocal stroke so that fluid is then pumped through the associated delivery outlet. The delivery rate of the pump is varied by adjusting the axial position of the swash plate relative to the cylinder block, which varies the duration of the piston stroke during which the vent port is closed.

Sommars, Mark F. (Sparland, IL)

2001-01-01T23:59:59.000Z

69

Large Thermoelectric Power Factor in P-type Si (110)/[110] Ultra-Thin-Layers Compared to Differently Oriented Channels  

E-Print Network [OSTI]

The ability of a material to convert heat into electricity is measured by the dimensionless thermoelectric (TE1 Large Thermoelectric Power Factor in P-type Si (110)/[110] Ultra-Thin-Layers Compared the thermoelectric power factor of ultra-thin-body p-type Si layers of thicknesses from W=3nm up to 10nm. We show

70

Clean Cities Regional Support & Petroleum Displacement Awards  

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

Clean Cities Regional Support & Petroleum Displacement Awards Mike Scarpino & Kay Kelly National Energy Technology Laboratory 052009 This presentation does not contain any...

71

Threshold displacement energies and defect formation energies...  

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

energies and defect formation energies in Y2Ti2O7. Abstract: Ab initio molecular dynamics simulations have been carried out to determine both the threshold displacement...

72

Molecular dynamics simulation of threshold displacement energies...  

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

experimental estimates in ceramics. Citation: Moreira PA, R Devanathan, J Yu, and WJ Weber.2009."Molecular dynamics simulation of threshold displacement energies in...

73

Clean Cities 2009 Petroleum Displacement Awards  

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

confidential or otherwise restricted information. Project ID: TI004 Clean Cities 2009 Petroleum Displacement Awards (ARRA & non-ARRA) Mike Scarpino U.S. Department of Energy...

74

Improved assessment of population doses and risk factors for a nuclear power plant under accident conditions  

E-Print Network [OSTI]

In order to assess the doses received by the members of the public due to an accident at a nuclear power plant, a number of physical processes must be modeled. These processes include the release of radioactive materials, the atmospheric dispersion... representative of the industry. Generic reactor sites must be conceptualized in order to obtain meteorologic data which is representative of the areas within the United States in which nuclear power facilities have been sited, Information such as population...

Meyer, Christopher Martin

1985-01-01T23:59:59.000Z

75

Enhanced Power Handling and Quality Factor in Thin-Film Piezoelectric-on-Substrate Resonators  

E-Print Network [OSTI]

motional impedance reduces the required loop-gain and hence the power consumption [1]. Although properties (low loss, high energy density) of single crystal silicon. As a result of improved nonlinearity at the nodal points of a targeted resonance mode shape (Fig. 1). Figure 1: The schematic structure of a one-port

Ayazi, Farrokh

76

Thermoelectric power factor enhancement by ionized nanoparticle scattering Je-Hyeong Bahk,1,a)  

E-Print Network [OSTI]

conductivity, T is the absolute temperature, and je and jl are the electronic and lattice thermal factor enhancement in materials with nanopar- ticle low volume fractions at high temperatures. Efforts to electrical conductivity are always accompanied by increases in electronic thermal conductivity.7,8 Still

77

Different Factors Affecting Short Circuit Behavior of a Wind Power Plant  

SciTech Connect (OSTI)

A wind power plant consists of a large number of turbines interconnected by underground cable. A pad-mount transformer at each turbine steps up the voltage from generating voltage (690 V) to a medium voltage (34.5 kV). All turbines in the plant are connected to the substation transformer where the voltage is stepped up to the transmission level. An important aspect of wind power plant (WPP) impact studies is to evaluate the short-circuit (SC) current contribution of the plant into the transmission network under different fault conditions. This task can be challenging to protection engineers due to the topology differences between different types of wind turbine generators (WTGs) and the conventional generating units. This paper investigates the short circuit behavior of a wind power plant for different types of faults. The impact of wind turbine types, the transformer configuration, and the reactive compensation capacitor will be investigated. The voltage response at different buses will be observed. Finally, the SC line currents will be presented along with its symmetrical components.

Muljadi, E.; Samaan, Nader A.; Gevorgian, Vahan; Li, Jun; Pasupulati, Subbaiah

2013-01-31T23:59:59.000Z

78

Scale model studies of displacement ventilation  

E-Print Network [OSTI]

Displacement ventilation is an air conditioning method that provides conditioned air to indoor environments with the goal to improve air quality while reducing energy consumption. This study investigates the performance ...

Okutan, Galip Mehmet

1995-01-01T23:59:59.000Z

79

Fiber-optic displacement sensor system  

E-Print Network [OSTI]

. Light pulses from a light emitting diode (LED) were coupled into a multimode fiber. The displacement of a mirror positioned near the end of the fiber was measured by monitoring the amplitude of the reflected pulses. A reference reflection from a... emitting diode (LED) were coupled into a multimode fiber. The displacement of a mirror positioned near the end of the fiber was measured by monitoring the amplitude...

Cava, Norayda Nora

2012-06-07T23:59:59.000Z

80

Tsunami mortality and displacement in Aceh province, Indonesia  

E-Print Network [OSTI]

Tsunami mortality and displacement in Aceh province, Indonesia Abdur Rofi, MA Mercy Corps Indonesia, Indonesia, Shannon Doocy, PhD Research Associate, Johns Hopkins Bloomberg School of Public Health, US. Keywords: displacement, internally displaced persons (IDPs), Indonesia, mortality, tsunami Introduction

Scharfstein, Daniel

Note: This page contains sample records for the topic "displacement power factor" 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

Coupled double-layer Fano resonance photonic crystal filters with lattice-displacement  

SciTech Connect (OSTI)

We present here ultra-compact high-Q Fano resonance filters with displaced lattices between two coupled photonic crystal slabs, fabricated with crystalline silicon nanomembrane transfer printing and aligned e-beam lithography techniques. Theoretically, with the control of lattice displacement between two coupled photonic crystal slabs layers, optical filter Q factors can approach 211?000?000 for the design considered here. Experimentally, Q factors up to 80?000 have been demonstrated for a filter design with target Q factor of 130?000.

Shuai, Yichen; Zhao, Deyin; Singh Chadha, Arvinder; Zhou, Weidong, E-mail: wzhou@uta.edu [Department of Electrical Engineering, University of Texas at Arlington, Arlington, Texas 76019 (United States)] [Department of Electrical Engineering, University of Texas at Arlington, Arlington, Texas 76019 (United States); Seo, Jung-Hun; Ma, Zhenqiang [Department of Electrical and Computer Engineering, University of Wisconsin, Madison, Wisconsin 53706 (United States)] [Department of Electrical and Computer Engineering, University of Wisconsin, Madison, Wisconsin 53706 (United States); Yang, Hongjun [Department of Electrical Engineering, University of Texas at Arlington, Arlington, Texas 76019 (United States) [Department of Electrical Engineering, University of Texas at Arlington, Arlington, Texas 76019 (United States); Semerane, Inc., Arlington, Texas 76010 (United States); Fan, Shanhui [Department of Electrical Engineering, Stanford University, Stanford, California 94305 (United States)] [Department of Electrical Engineering, Stanford University, Stanford, California 94305 (United States)

2013-12-09T23:59:59.000Z

82

Recover Power with Hydraulic Motors  

E-Print Network [OSTI]

displacement device, the HPRM torque and speed are almost completely independent - unlike hydraulic power recovery turbines (centrifugal motors). Three screw HPRM's have low moments of inertia, operate at low vibration and noise levels and extract power...

Brennan, J. R.

1982-01-01T23:59:59.000Z

83

A STOCHASTIC METHOD FOR MODELING FLUID DISPLACEMENT IN PETROLEUM RESERVOIRS  

E-Print Network [OSTI]

FLUID DISPLACEMENT IN PETROLEUM RESERVOIRS C. Anderson andFLUID DISPLACEMENT IN PETROLEUM RESERVOIRS C. Anderson andachieve optimal recovery of petroleum from a reservoir, it

Anderson, C.

2011-01-01T23:59:59.000Z

84

Supersensitive measurement of angular displacements using entangled photons  

SciTech Connect (OSTI)

We show that the use of path-entangled states of photons, having nonzero orbital angular momentum (OAM), increases the resolution and sensitivity of angular-displacement measurements performed using an interferometer. In the ideal case of maximally path-entangled states, the resolution of angular-displacement measurements increases by a factor of Nl, while the uncertainty in the measurement of angular displacements scales as 1/Nl, where N is the number of entangled photons, half of which carry, on average, an OAM of +l({h_bar}/2{pi}) per photon and the other half carry an OAM of -l({h_bar}/2{pi}) per photon. We analyze measurement schemes for two- and four-photon entangled states produced by parametric down-conversion and, by employing a 4x4 matrix formalism to study the propagation of entangled OAM modes, obtain explicit expressions for the resolution and sensitivity in these schemes. These results constitute an improvement over what could be obtained with N nonentangled photons carrying an orbital angular momentum of |l|({h_bar}/2{pi}) per photon.

Jha, Anand Kumar; Boyd, Robert W. [The Institute of Optics, University of Rochester, Rochester, New York 14627 (United States); Agarwal, Girish S. [Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078 (United States)

2011-05-15T23:59:59.000Z

85

Verification of maximum radial power peaking factor due to insertion of FPM-LEU target in the core of RSG-GAS reactor  

SciTech Connect (OSTI)

Verification of Maximum Radial Power Peaking Factor due to insertion of FPM-LEU target in the core of RSG-GAS Reactor. Radial Power Peaking Factor in RSG-GAS Reactor is a very important parameter for the safety of RSG-GAS reactor during operation. Data of radial power peaking factor due to the insertion of Fission Product Molybdenum with Low Enriched Uranium (FPM-LEU) was reported by PRSG to BAPETEN through the Safety Analysis Report RSG-GAS for FPM-LEU target irradiation. In order to support the evaluation of the Safety Analysis Report incorporated in the submission, the assessment unit of BAPETEN is carrying out independent assessment in order to verify safety related parameters in the SAR including neutronic aspect. The work includes verification to the maximum radial power peaking factor change due to the insertion of FPM-LEU target in RSG-GAS Reactor by computational method using MCNP5and ORIGEN2. From the results of calculations, the new maximum value of the radial power peaking factor due to the insertion of FPM-LEU target is 1.27. The results of calculations in this study showed a smaller value than 1.4 the limit allowed in the SAR.

Setyawan, Daddy, E-mail: d.setyawan@bapeten.go.id [Center for Assessment of Regulatory System and Technology for Nuclear Installations and Materials, Indonesian Nuclear Energy Regulatory Agency (BAPETEN), Jl. Gajah Mada No. 8 Jakarta 10120 (Indonesia); Rohman, Budi [Licensing Directorate for Nuclear Installations and Materials, Indonesian Nuclear Energy Regulatory Agency (BAPETEN), Jl. Gajah Mada No. 8 Jakarta 10120 (Indonesia)

2014-09-30T23:59:59.000Z

86

HELIUM EFFECTS ON DISPLACEMENT CASCADE IN TUNGSTEN  

SciTech Connect (OSTI)

Molecular dynamics (MD) simulations were performed to investigate He effects on displacement cascades in W. Helium content, proportion of interstitial and substitutional He and temperature were varied to reveal the various effects. The effect of interstitial He on the number of self-interstitial atoms (SIAs) produced during cascade damage appears to be insignificant. However, interstitial He tends to fill a vacancy (V). Nevertheless, this process is less favorable than SIA-V recombination particularly when excess SIAs are present before a cascade. The efficiency of He filling and SIA-V recombination increases as temperature increases due to increased point defect mobility. Likewise, substitutional He is more susceptible to displacement during a collision cascade than W. This susceptibility increases towards higher temperatures. Consequently, the number of surviving V is governed by the interplay between displaced substitutional He and SIA-V recombination. The temperature dependence of these processes results in a minimum number of V reached at an intermediate temperature.

Setyawan, Wahyu; Nandipati, Giridhar; Roche, Kenneth J.; Heinisch, Howard L.; Kurtz, Richard J.; Wirth, Brian D.

2013-09-30T23:59:59.000Z

87

Displacement Echoes: Classical Decay and Quantum Freeze  

E-Print Network [OSTI]

Motivated by neutron scattering experiments, we investigate the decay of the fidelity with which a wave packet is reconstructed by a perfect time-reversal operation performed after a phase space displacement. In the semiclassical limit, we show that the decay rate is generically given by the Lyapunov exponent of the classical dynamics. For small displacements, we additionally show that, following a short-time Lyapunov decay, the decay freezes well above the ergodic value because of quantum effects. Our analytical results are corroborated by numerical simulations.

Cyril Petitjean; Diego V. Bevilaqua; Eric J. Heller; Philippe Jacquod

2007-04-23T23:59:59.000Z

88

Coreflood experimental study of steam displacement  

E-Print Network [OSTI]

The main objective of this study was to verify experimentally whether or not a Buckley-Leverett shock front exists when steam displaces oil in a porous medium, as assumed in the Aydelotte-Pope steamflood predictive model. Experiments were conducted...

Cerutti, Andres Enrique

1997-01-01T23:59:59.000Z

89

Optimizing Power Factor Correction  

E-Print Network [OSTI]

has been reversed. The 36 different plots that are given in each Fig. 6 through 8 are for 36 different combinations PB (yr) 1.0 1.1 0.8 0.9 1.0 P F 2 ./ 0.5 -+/::.......----------------'1':7 0.5 PFl 1.0 Dr ? ZIZ Itw. DfB? zz,zzz kWh. B... ? $z,zzz. D ? $zz/kVAR. Figure 3. Payback period contours; upper triangle 1.0 PFI 0.5 ~....L---------------------t-0.5 0.9 '0.8 1.0 P F 2 / ./ 1.0 1.1 PB (yr) Figure 4. Payback period contours; lower triangle 811 ESL-IE-86...

Phillips, R. K.; Burmeister, L. C.

90

Reducing Power Factor Cost  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L dDepartmentnews-flashes Office ofof EnergyReducing Peak DemandLow

91

Increasing positive displacement charging pump reliability  

SciTech Connect (OSTI)

The use of positive displacement pumps in many PWRs is an integral part of providing reactivity control via the Chemical and Volume Control system. This usually requires the continuous operation of at least one pump, typically with a flow rate of 44 gpm {at} 2,310 psig (167 lpm {at} 160 bar). Some PWRs use multiple pumps, and vary the letdown, while others use variable speed pumps. Regardless, the charging pumps run continuously. With the amount of reciprocating mass, differential pressure, and friction, it is a battle to maintain the pumps in peak operating condition for long periods of time. This paper will show how Entergy Operations` Waterford 3 SES was able to increase the reliability of the positive displacement Charging Pumps. Many different solutions were evaluated, and several adopted. The results are undeniable, as availability has increased and O and M costs have been reduced by 90% over 6 years.

Wade, J.H. III [Entergy Operations, Inc., Killona, LA (United States)

1996-08-01T23:59:59.000Z

92

A new high performance AC to DC rectifier with input power factor correction and harmonic reduction capacity  

E-Print Network [OSTI]

Many conventional switching power supplies in data processing equipment and low power motor drive systems operate by rectifying the input ac line voltage and filtering it with large electrolytic capacitors. Because this process involves both...

Martinez, Roberto

1994-01-01T23:59:59.000Z

93

Displacement of oil by carbon dioxide. Annual report, October 1980-September 1981  

SciTech Connect (OSTI)

Progress of a comprehensive research program to quantify factors affecting CO/sub 2/ flood displacement efficiency is described. Experimental and theoretical investigations of the interactions of factors such as phase behavior and fluid properties of CO/sub 2/-crude oil mixtures, and heterogeneities in reservoir rocks are discussed. Literature on the interpretation of miscible displacements in one- and two-phase systems is reviewed. Simple displacement experiments to evaluate effects of core hteterogeneities and high mobile water saturations are described. Results of miscible displacement experiments with fluids of matched density and viscosity are presented and compared with results of a few displacements in which fluid properties were not matched. Those comparisons clearly indicate that control of viscous fingering is required if short core floods are to be interpreted with reasonable certainty. Detailed results of investigations of the phase behavior of CO/sub 2/-crude oil mixtures are presented. The volumetric behavior of mixtures of CO/sub 2/ with dead oils from the Wasson and Maljamar fields are compared with that of a Maljamar recombined reservoir fluid. The results provide the basis for a qualitative analysis of the effects of the presence of solution gas on CO/sub 2/ flood performance. Modifications to improve the continuous multiple contact experiment, which efficiently measures phase compositions and fluid properties, are described. An analysis of the operation of the apparatus is given for binary systems. The theory is compared with experimental results for CO/sub 2/-decane displacements, with excellent agreement. Extensive results of experiments to measure compositions and densities of phases present for CO/sub 2/-crude oil mixtures are reported. Finally, formulation of a mathematical model which considers the relative importance of factors such as phase behavior, fluid property variations, heterogeneity, and viscous and gravitational instabilities is discussed.

Orr, F.M. Jr.; Taber, J.J.

1982-04-01T23:59:59.000Z

94

Adsorption, Desorption, and Displacement Kinetics of H2O and...  

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

Displacement Kinetics of H2O and CO2 on TiO2(110). Adsorption, Desorption, and Displacement Kinetics of H2O and CO2 on TiO2(110). Abstract: The adsorption, desorption, and...

95

atomic displacements: Topics by E-print Network  

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

Conflict Displacement and Labor Market Outcomes CiteSeer Summary: The 199295 war in Bosnia and Herzegovina (BiH) drove about 1.3 Million people into displacement (UNHCR). This...

96

atomic displacements kirchhoff: Topics by E-print Network  

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

Conflict Displacement and Labor Market Outcomes CiteSeer Summary: The 199295 war in Bosnia and Herzegovina (BiH) drove about 1.3 Million people into displacement (UNHCR). This...

97

aromatic nucleophilic displacement: Topics by E-print Network  

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

Conflict Displacement and Labor Market Outcomes CiteSeer Summary: The 199295 war in Bosnia and Herzegovina (BiH) drove about 1.3 Million people into displacement (UNHCR). This...

98

Stability of Miscible Displacements Across Stratified Porous Media  

SciTech Connect (OSTI)

This report studied macro-scale heterogeneity effects. Reflecting on their importance, current simulation practices of flow and displacement in porous media were invariably based on heterogeneous permeability fields. Here, it was focused on a specific aspect of such problems, namely the stability of miscible displacements in stratified porous media, where the displacement is perpendicular to the direction of stratification.

Shariati, Maryam; Yortsos, Yanis C.

2000-09-11T23:59:59.000Z

99

Measurement of probe displacement to the thermal resolution limit in photonic force microscopy using a miniature quadrant photodetector  

SciTech Connect (OSTI)

A photonic force microscope comprises of an optically trapped micro-probe and a position detection system to track the motion of the probe. Signal collection for motion detection is often carried out using the backscattered light off the probe-however, this mode has problems of low S/N due to the small backscattering cross sections of the micro-probes typically used. The position sensors often used in these cases are quadrant photodetectors. To ensure maximum sensitivity of such detectors, it would help if the detector size matched with the detection beam radius after the condenser lens (which for backscattered detection would be the trapping objective itself). To suit this condition, we have used a miniature displacement sensor whose dimensions makes it ideal to work with 1:1 images of micrometer-sized trapped probes in the backscattering detection mode. The detector is based on the quadrant photo-integrated chip in the optical pick-up head of a compact disc player. Using this detector, we measured absolute displacements of an optically trapped 1.1 {mu}m probe with a resolution of {approx}10 nm for a bandwidth of 10 Hz at 95% significance without any sample or laser stabilization. We characterized our optical trap for different sized probes by measuring the power spectrum for each probe to 1% accuracy, and found that for 1.1 {mu}m diameter probes, the noise in our position measurement matched the thermal resolution limit for averaging times up to 10 ms. We also achieved a linear response range of around 385 nm with cross talk between axes {approx_equal}4% for 1.1 {mu}m diameter probes. The detector has extremely high bandwidth (few MHz) and low optical power threshold-other factors that can lead to its widespread use in photonic force microscopy.

Pal, Sambit Bikas; Haldar, Arijit; Roy, Basudev; Banerjee, Ayan [Department of Physical Sciences, IISER-Kolkata, West Bengal 741252 (India)

2012-02-15T23:59:59.000Z

100

Modeling and Validation of Performance Limitations for the Optimal Design of Interferometric and Intensity-Modulated Fiber Optic Displacement Sensors  

SciTech Connect (OSTI)

Optical fiber sensors offer advantages over traditional electromechanical sensors, making them particularly well-suited for certain measurement applications. Generally speaking, optical fiber sensors respond to a desired measurand through modulation of an optical signal's intensity, phase, or wavelength. Practically, non-contacting fiber optic displacement sensors are limited to intensity-modulated and interferometric (or phase-modulated) methodologies. Intensity-modulated fiber optic displacement sensors relate target displacement to a power measurement. The simplest intensity-modulated sensor architectures are not robust to environmental and hardware fluctuations, since such variability may cause changes in the measured power level that falsely indicate target displacement. Differential intensity-modulated sensors have been implemented, offering robustness to such intensity fluctuations, and the speed of these sensors is limited only by the combined speed of the photodetection hardware and the data acquisition system (kHz-MHz). The primary disadvantages of intensity-modulated sensing are the relatively low accuracy (?m-mm for low-power sensors) and the lack of robustness, which consequently must be designed, often with great difficulty, into the sensor's architecture. White light interferometric displacement sensors, on the other hand, offer increased accuracy and robustness. Unlike their monochromatic-interferometer counterparts, white light interferometric sensors offer absolute, unambiguous displacement measurements over large displacement ranges (cm for low-power, 5 mW, sources), necessitating no initial calibration, and requiring no environmental or feedback control. The primary disadvantage of white light interferometric displacement sensors is that their utility in dynamic testing scenarios is limited, both by hardware bandwidth and by their inherent high-sensitivity to Doppler-effects. The decision of whether to use either an intensity-modulated interferometric sensor depends on an appropriate performance function (e.g., desired displacement range, accuracy, robustness, etc.). In this dissertation, the performance limitations of a bundled differential intensity-modulated displacement sensor are analyzed, where the bundling configuration has been designed to optimize performance. The performance limitations of a white light Fabry-Perot displacement sensor are also analyzed. Both these sensors are non-contacting, but they have access to different regions of the performance-space. Further, both these sensors have different degrees of sensitivity to experimental uncertainty. Made in conjunction with careful analysis, the decision of which sensor to deploy need not be an uninformed one.

Moro, Erik A. [Los Alamos National Laboratory

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

Superconducting inductive displacement detection of a microcantilever  

SciTech Connect (OSTI)

We demonstrate a superconducting inductive technique to measure the displacement of a micromechanical resonator. In our scheme, a type I superconducting microsphere is attached to the free end of a microcantilever and approached to the loop of a dc Superconducting Quantum Interference Device (SQUID) microsusceptometer. A local magnetic field as low as 100??T, generated by a field coil concentric to the SQUID, enables detection of the cantilever thermomechanical noise at 4.2?K. The magnetomechanical coupling and the magnetic spring are in good agreement with image method calculations assuming pure Meissner effect. These measurements are relevant to recent proposals of quantum magnetomechanics experiments based on levitating superconducting microparticles.

Vinante, A., E-mail: anvinante@fbk.eu [Istituto di Fotonica e Nanotecnologie, CNR - Fondazione Bruno Kessler, I-38123 Povo, Trento (Italy)

2014-07-21T23:59:59.000Z

102

Superconducting inductive displacement detection of a microcantilever  

E-Print Network [OSTI]

We demonstrate a superconducting inductive technique to measure the displacement of a micromechanical resonator. In our scheme, a type I superconducting microsphere is attached to the free end of a microcantilever and approached to the loop of a dc Superconducting Quantum Interference Device (SQUID) microsusceptometer. A local magnetic field as low as 100 $\\mu$T, generated by a field coil concentric to the SQUID, enables detection of the cantilever thermomechanical noise at $4.2$ K. The magnetomechanical coupling and the magnetic spring are in good agreement with image method calculations assuming pure Meissner effect. These measurements are relevant to recent proposals of quantum magnetomechanics experiments based on levitating superconducting microparticles.

Andrea Vinante

2014-05-14T23:59:59.000Z

103

Displacement of crude oil by carbon dioxide  

E-Print Network [OSTI]

by Carbon Dioxide (December 1980) Olusegun Omole, B. S. , University of Ibadan, Nigeria Chairman of Advisory Committee: Dr. J. S. Osoba It has long been recognized that carbon dioxide could be used as an oil recovery agent. Both laboratory and field...- tion. Crude oil from the Foster Field in West Texas, of 7 cp and 34 API, 0 was used as the oil in place. Oil displacements were conducted at pres- sures between 750 psig and 1800 ps1g, and at a temperature of 110 F. 0 Carbon dioxide was injected...

Omole, Olusegun

1980-01-01T23:59:59.000Z

104

Wind power generating system  

SciTech Connect (OSTI)

Normally feathered propeller blades of a wind power generating system unfeather in response to the actuation of a power cylinder that responds to actuating signals. Once operational, the propellers generate power over a large range of wind velocities. A maximum power generation design point signals a feather response of the propellers so that once the design point is reached no increase in power results, but the system still generates power. At wind speeds below this maximum point, propeller speed and power output optimize to preset values. The propellers drive a positive displacement pump that in turn drives a positive displacement motor of the swash plate type. The displacement of the motor varies depending on the load on the system, with increasing displacement resulting in increasing propeller speeds, and the converse. In the event of dangerous but not clandestine problems developing in the system, a control circuit dumps hydraulic pressure from the unfeathering cylinder resulting in a predetermined, lower operating pressure produced by the pump. In the event that a problem of potentially cladestine consequence arises, the propeller unfeathering cylinder immediately unloads. Upon startup, a bypass around the motor is blocked, applying a pressure across the motor. The motor drives the generator until the generator reaches a predetermined speed whereupon the generator is placed in circuit with a utility grid and permitted to motor up to synchronous speed.

Schachle, Ch.; Schachle, E. C.; Schachle, J. R.; Schachle, P. J.

1985-03-12T23:59:59.000Z

105

Transient digitizer with displacement current samplers  

DOE Patents [OSTI]

A low component count, high speed sample gate, and digitizer architecture using the sample gates is based on use of a signal transmission line, a strobe transmission line and a plurality of sample gates connected to the sample transmission line at a plurality of positions. The sample gates include a strobe pickoff structure near the strobe transmission line which generates a charge displacement current in response to propagation of the strobe signal on the strobe transmission line sufficient to trigger the sample gate. The sample gate comprises a two-diode sampling bridge and is connected to a meandered signal transmission line at one end and to a charge-holding cap at the other. The common cathodes are reverse biased. A voltage step is propagated down the strobe transmission line. As the step propagates past a capacitive pickoff, displacement current i=c(dv/dT), flows into the cathodes, driving the bridge into conduction and thereby charging the charge-holding capacitor to a value related to the signal. A charge amplifier converts the charge on the charge-holding capacitor to an output voltage. The sampler is mounted on a printed circuit board, and the sample transmission line and strobe transmission line comprise coplanar microstrips formed on a surface of the substrate. Also, the strobe pickoff structure may comprise a planar pad adjacent the strobe transmission line on the printed circuit board. 16 figs.

McEwan, T.E.

1996-05-21T23:59:59.000Z

106

Transient digitizer with displacement current samplers  

DOE Patents [OSTI]

A low component count, high speed sample gate, and digitizer architecture using the sample gates is based on use of a signal transmission line, a strobe transmission line and a plurality of sample gates connected to the sample transmission line at a plurality of positions. The sample gates include a strobe pickoff structure near the strobe transmission line which generates a charge displacement current in response to propagation of the strobe signal on the strobe transmission line sufficient to trigger the sample gate. The sample gate comprises a two-diode sampling bridge and is connected to a meandered signal transmission line at one end and to a charge-holding cap at the other. The common cathodes are reverse biased. A voltage step is propagated down the strobe transmission line. As the step propagates past a capacitive pickoff, displacement current i=c(dv/dT), flows into the cathodes, driving the bridge into conduction and thereby charging the charge-holding capacitor to a value related to the signal. A charge amplifier converts the charge on the charge-holding capacitor to an output voltage. The sampler is mounted on a printed circuit board, and the sample transmission line and strobe transmission line comprise coplanar microstrips formed on a surface of the substrate. Also, the strobe pickoff structure may comprise a planar pad adjacent the strobe transmission line on the printed circuit board.

McEwan, Thomas E. (Livermore, CA)

1996-01-01T23:59:59.000Z

107

Theoretical full power correction factors as related to changes in ambient temperature, pressure and absolute humidity for aircraft turbine engines  

E-Print Network [OSTI]

IN AMBIENT TEMPERATURE, PRESSURF. AND ABSOLUTE HUMIDITY FOR AIRCRAFT TURBINE ENGINES (August 1969) Michael Antoun Raphael B. S. (Mechanical Engineering) Texas A&M University Directed by: Professor Stanley H, Lowy ABSTRACT Power losses in aircraft gas... rated at standard atmospheric conditions (i. e, ambient temperature 69 F 3'Fend atmospheric pressure 29. 92 in. Hg. dry) . Obviously this same turbine will not be exposed to such standard conditions; therefore we have a change in power directly...

Raphael, Michel Antoun

1969-01-01T23:59:59.000Z

108

Air Emissions and Oil Displacement Benefits  

E-Print Network [OSTI]

battery packs allow vehicles to travel longer distance on electric power instead of gasoline may (1) produce fewer greenhouse gas emissions when powered by electricity instead of gasoline emissions relative to HEVs, depending on electricity source. Plug-in vehicles with large battery packs

Michalek, Jeremy J.

109

Low energy properties of the random displacement model  

E-Print Network [OSTI]

We study low-energy properties of the random displacement model, a random Schr\\"odinger operator describing an electron in a randomly deformed lattice. All periodic displacement configurations which minimize the bottom of the spectrum are characterized. While this configuration is essentially unique for dimension greater than one, there are infinitely many different minimizing configurations in the one-dimensional case. The latter leads to unusual low energy asymptotics for the integrated density of states of the one-dimensional random displacement model. For symmetric Bernoulli-distributed displacements it has a $1/\\log^2$-singularity at the bottom of the spectrum. In particular, it is not H\\"older-continuous.

Jeff Baker; Michael Loss; Gnter Stolz

2008-08-05T23:59:59.000Z

110

Gage for measuring displacements in rock samples  

DOE Patents [OSTI]

A gage for measuring diametral displacement within a rock sample for use in a rock mechanics laboratory and in the field, comprises a support ring housing a linear variable differential transformer, a mounting screw, and a leaf spring. The mounting screw is adjustable and defines a first point of contact with the rock sample. The leaf spring has opposite ends fixed to the inner periphery of the mounting ring. An intermediate portion of the leaf spring projecting radially inward from the ring is formed with a dimple defining a second point of contact with the sample. The first and second points of contact are diametrically opposed to each other. The LVDT is mounted in the ring with its axis parallel to the line of measurement and its core rod received in the dimple of the leaf spring. Any change in the length of the line between the first and second support points is directly communicated to the LVDT. The leaf spring is rigid to completely support lateral forces so that the LVDT is free of all load for improved precision.

Holcomb, David J. (Albuquerque, NM); McNamee, Michael J. (Albuquerque, NM)

1986-01-01T23:59:59.000Z

111

Thermoelectric Generator (TEG) Fuel Displacement Potential using  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of EnergyThe EnergyDepartment ofPowered Vehicle |

112

Mode-locking external-cavity laser-diode sensor for displacement measurements of technical surfaces  

SciTech Connect (OSTI)

A novel laser sensor for position measurements of technical solid-state surfaces is proposed. An external Fabry-Perot laser cavity is assembled by use of an antireflection-coated laser diode together with the technical surface. Mode locking results from pumping the laser diode synchronously to the mode spacing of the cavity. The laser cavity length, i.e., the distance to the measurement object, is determined by evaluation of the modulation transfer function of the cavity by means of a phase-locked loop. The mode-locking external-cavity laser sensor incorporates a resonance effect that results in highly resolving position and displacement measurements. More than a factor-of-10 higher resolution than with conventional nonresonant sensing principles is achieved. Results of the displacement measurements of various technical surfaces are reported. Experimental and theoretical investigations are in good agreement.

Czarske, Juergen; Moebius, Jasper; Moldenhauer, Karsten

2005-09-01T23:59:59.000Z

113

Coupling of lateral grating displacement to the output ports of a diffractive Fabry-Perot cavity  

E-Print Network [OSTI]

Diffraction gratings have been proposed as core elements in future laser-interferometric gravitational-wave detectors. In this paper, we use a steady-state technique to derive coupling of lateral grating displacement to the output ports of a diffractive Fabry-Perot cavity. By introducing a signal to noise ratio (SNR) for each of the three cavity output ports the magnitude of the noise sidebands originating from lateral grating displacement are compared to the magnitude of a potential gravitational wave signal. For the example of a 3km long Fabry-Perot cavity featuring parameters similar to the planned Advanced Virgo instrument, we found that the forward-reflecting grating port offers the highest SNR at low frequencies. Furthermore, for this example suspension requirements for lateral isolation were computed, and a factor of twenty relaxation at a frequency of 10Hz can be gained over the transmitted port by observing the forward-reflected port.

J. Hallam; S. Chelkowski; A. Freise; S. Hild; B. Barr; K. A. Strain; O. Burmeister; R. Schnabel

2009-05-05T23:59:59.000Z

114

Determination of capillary displacement pressure and representative average capillary pressure vs. depth in shally sandstones from well logs  

SciTech Connect (OSTI)

This research presents a method whereby the capillary displacement pressure Pcd and the representative average capillary pressure in shaly sandstone reservoirs exhibits continuous information vs. depth from well logs. By the aid of special core analysis, correlation functions were obtained that relate the capillary characteristics of the reservoir rock to its lithologic development. Since the lithologic influence factor is a well log-derived parameter the correlations then were used to determine by means of well logs the capillary displacement and average capillary pressures for borehole sections where special core analysis is not available. This technique has been developed and applied to the shaly sandstone reservoir of the Sarir oil field in Libya.

Barlai, Z.; Berruin, N.A.; Mawla, R.A.

1981-01-01T23:59:59.000Z

115

Investigation of nonradiative recombination in semiconductors by photothermal displacement spectroscopy  

SciTech Connect (OSTI)

The dynamics of nonradiative recombination processes are investigated by measuring the thermal expansion and subsequent displacement of a sample surface caused by the absorption of a modulated laser beam. 6 refs., 3 figs.

Dersch, H.; Amer, N.M.

1985-06-01T23:59:59.000Z

116

A scale model study of displacement ventilation with chilled ceilings  

E-Print Network [OSTI]

Displacement ventilation is a form of air-conditioning which provides good air quality and some energy savings. The air quality is better than for a conventional mixed ventilation system. The maximum amount of cooling that ...

Holden, Katherine J. A. (Katherine Joan Adrienne)

1995-01-01T23:59:59.000Z

117

Petroleum Displacement Program Annual Report FY 2010-2011  

E-Print Network [OSTI]

efficiency 0.2% of displacement was lost through decreased use of CNG (natural gas) and LPG (propane..................................................................... 12 General Trends in FY10-11 PDP .............................................. 15 Fuel Pricing, Trends, and Cost Savings

118

Iraq's housing crisis : upgrading settlements for IDPS (internally displaced persons)  

E-Print Network [OSTI]

The most recent war in Iraq has resulted in a large wave of internal and external displacement with increased sectarian violence and ethnic tension. Subsequent conflict has exacerbated conditions within the nation and ...

Shaikley, Layla Karim

2013-01-01T23:59:59.000Z

119

A novel approach to modeling unstable EOR displacements. Final report  

SciTech Connect (OSTI)

Most enhanced oil recovery schemes involve the displacement of a more dense and more viscous oil by a less dense and less viscous fluid in a heterogeneous porous medium. The interaction of heterogeneity with the several competing forces, namely, viscous, capillary, gravitational, and dispersive forces, can conspire to make the displacements unstable and difficult to model and to predict. The objective of this research was to develop a systematic methodology for modeling unstable fluid displacements in heterogeneous media. Flow visualization experiments were conducted using X-ray computed tomography imaging and a video imaging workstation to gain insights into the dynamics of unstable displacements, acquire detailed quantitative experimental image data for calibrating numerical models of unstable displacements, and image and characterize heterogeneities in laboratory cores geostatistically. High-resolution numerical models modified for use on vector-architecture supercomputers were used to replicate the image data. Geostatistical models of reservoir heterogeneity were incorporated in order to study the interaction of hydrodynamic instability and heterogeneity in reservoir displacements. Finally, a systematic methodology for matching the experimental data with the numerical models and scaling the laboratory results to other systems were developed. The result is a new method for predicting the performance of unstable EOR displacements in the field based on small-scale displacements in the laboratory. The methodology is general and can be applied to forecast the performance of most processes that involve fluid flow and transport in porous media. Therefore, this research should be of interest to those involved in forecasting the performance of enhanced oil recovery processes and the spreading of contaminants in heterogeneous aquifers.

Peters, E.J.

1994-04-01T23:59:59.000Z

120

Time Displaced Entanglement and Non-Linear Quantum Evolution  

E-Print Network [OSTI]

We discuss time displaced entanglement, produced by taking one member of a Bell pair on a round trip at relativistic speeds, thus inducing a time-shift between the pair. We show that decoherence with respect to Bell measurements on the pair is predicted. We then study a teleportation protocol, using time displaced entanglement as its resource, in which a time-like loop is apparently formed. The result is non-unitary, non-linear evolution of the teleported state.

T. C. Ralph

2005-10-06T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

A study of oil displacement by carbonated water  

E-Print Network [OSTI]

A STUDY OF OIL DISPLACEMENT BY CARBONATED WATER A Thesis by Roohollah Partovi-N. Submitted to the Graduate College of the Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE January 1988... Major Subject: Petroleum Fn ineerin A STUDY OF OIL DISPLACEMENT BY CARBONATED WATER A Thesis by Roohollah Partovi-N. Approved as to style and content by: ( irman of mmittee) M mber) (Head of partment) (Member) January 1968 CP9292...

Partovi-Najafabadi, Roohollah

1968-01-01T23:59:59.000Z

122

Recovery of oil from fractured reservoirs by gas displacement  

E-Print Network [OSTI]

RECOVERY OF OIL FROM FRACTURED RESERVOIRS BY GAS DISPLACEMENT A Thesis by ARILD UNNE BE RG Submitted to the Graduate College of Texas AlkM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1974... Major Subject: Petroleum Engineering RECOVERY OF OIL FROM FRACTURED RESERVOIRS BY GAS DISPLACEMENT A Thesis by ARILD UNNEBERG Approved as, to style and content by: . ( y (Chairman of Cornrnittee) (Head of Depar nt) / (Membe r) (Member) M b...

Unneberg, Arild

2012-06-07T23:59:59.000Z

123

Preliminary Estimates of Combined Heat and Power Greenhouse Gas Abatement Potential for California in 2020  

E-Print Network [OSTI]

GHG preferable to grid power only when the waste heat can bethe grid electricity it displaces when the waste heat from

Firestone, Ryan; Ling, Frank; Marnay, Chris; Hamachi LaCommare, Kristina

2007-01-01T23:59:59.000Z

124

Displacement of oil by carbon dioxide. Annual report, October 1, 1980-September 30, 1981. [Ethyl benzene, ethylbutyrate, isopropanol  

SciTech Connect (OSTI)

Progress of a comprehensive research program to quantify factors affecting CO/sub 2/ flood displacement efficiency is described. Experimental and theoretical investigations of the interactions of factors such as phase behavior and fluid properties of CO/sub 2/-crude oil mixtures, and heterogeneities in reservoir rocks are discussed. Literature on the interpretation of miscible displacements in one- and two-phase systems is reviewed. Simple displacement experiments to evaluate effects of core heterogeneities and high mobile water saturations are described. Results of miscible displacement experiments with fluids of matched density and viscosity are presented and compared with results of a few displacements in which fluid properties were not matched. Those comparisons clearly indicate that control of viscous fingering is required if short core floods are to be interpreted with reasonable certainty. Detailed results of investigations of the phase behavior of CO/sub 2/-crude oil mixtures are presented. The volumetric behavior of mixtures of CO/sub 2/ with dead oils from the Wasson and Maljamar fields are compared with that of a Maljamar recombined reservoir fluid. The results provide the basis for a qualitative analysis of the effects of the presence of solution gas on CO/sub 2/ flood performance. Modifications to improve the continuous multiple contact experiment, which efficiently measures phase compositions and fluid properties, are described. An analysis of the operation of the apparatus is given for binary systems. The theory is compared with experimental results for CO/sub 2/-decane displacements, with excellent agreement. Extensive results of experiments to measure compositions and densities of phases present for CO/sub 2/-crude oil mixtures are reported.

Orr, F.M. Jr.; Taber, J.J.

1982-03-01T23:59:59.000Z

125

DOE's Office of Science Sets up Program to Aid Scientists Displaced...  

Energy Savers [EERE]

Sets up Program to Aid Scientists Displaced by Hurricane Katrina DOE's Office of Science Sets up Program to Aid Scientists Displaced by Hurricane Katrina September 9, 2005 -...

126

Laboratory imaging of stimulation fluid displacement from hydraulic fractures  

SciTech Connect (OSTI)

Laboratory experiments were conducted to physically investigate the processes governing stimulation fluid displacement from hydraulic fractures. Experiments were performed on two scales: meter-scale in a 1500 cm{sup 2} sand pack and core-scale in a 65 cm{sup 2} API linear conductivity cell. High-resolution light transmission imaging was employed at the meter-scale to visualize and quantify processes governing fluid displacement. For comparison, complimentary tests were performed using an API conductivity cell under ambient test conditions and at elevated closure stress. In these experiments viscous fingering and gravity drainage were identified as the dominant processes governing fluid displacement. Fluid viscosity was found to dictate the relative importance of the competing displacement processes and ultimately determine the residual liquid saturation of the sand pack. The process by which fluid displacement occurs was seen to effect the shape of both the gas and liquid phase relative permeability functions. Knowledge of such viscosity/relative permeability relationships may prove useful in bounding predictions of post-stimulation recovery of gels from the fracture pack.

Tidwell, V. [Sandia National Lab., Albuquerque, NM (United States); Parker, M. [SPE, Richardson, TX (United States)

1996-11-01T23:59:59.000Z

127

Wave represents displacement Wave represents pressure Source -Sound Waves  

E-Print Network [OSTI]

Wave represents displacement Wave represents pressure Source - Sound Waves Distance between crests is wavelength Number of crests passing a point in 1 second is frequency Wave represents pressure Target - Radio Waves Distance between crests is wavelength Number of crests passing a point in 1 second is frequency

Colorado at Boulder, University of

128

The Influence of Crystallographic Orientation on Crack Tip Displacements of  

E-Print Network [OSTI]

consists of 212 randomly shaped, sized and oriented grains, loaded monotonically in uniaxial tension to a maximum load of 0.9Rp0.2 (240 MPa). The influence that a random grain structure imposes on a Stage I crack will preferably follow the slip plane where the crack tip opening displacement is highest, we show

Cizelj, Leon

129

Physica A 261 (1998) 5159 Spatial correlations of particle displacements  

E-Print Network [OSTI]

glass-forming liquids [1,2], foams [3], colloids [4,5], and granular materials [6], are known to exhibitPhysica A 261 (1998) 51­59 Spatial correlations of particle displacements in a glass-forming liquid systems. We evaluate this function using computer simulations of an equilibrium glass-forming liquid

Weeks, Eric R.

130

Wettability and Oil Recovery by Imbibition and Viscous Displacement from Fractured and Heterogeneous Carbonates  

SciTech Connect (OSTI)

About one-half of U.S. oil reserves are held in carbonate formations. The remaining oil in carbonate reservoirs is regarded as the major domestic target for improved oil recovery. Carbonate reservoirs are often fractured and have great complexity even at the core scale. Formation evaluation and prediction is often subject to great uncertainty. This study addresses quantification of crude oil/brine/rock interactions and the impact of reservoir heterogeneity on oil recovery by spontaneous imbibition and viscous displacement from pore to field scale. Wettability-alteration characteristics of crude oils were measured at calcite and dolomite surfaces and related to the properties of the crude oils through asphaltene content, acid and base numbers, and refractive index. Oil recovery was investigated for a selection of limestones and dolomites that cover over three orders of magnitude in permeability and a factor of four variation in porosity. Wettability control was achieved by adsorption from crude oils obtained from producing carbonate reservoirs. The induced wettability states were compared with those measured for reservoir cores. The prepared cores were used to investigate oil recovery by spontaneous imbibition and viscous displacement. The results of imbibition tests were used in wettability characterization and to develop mass transfer functions for application in reservoir simulation of fractured carbonates. Studies of viscous displacement in carbonates focused on the unexpected but repeatedly observed sensitivity of oil recovery to injection rate. The main variables were pore structure, mobility ratio, and wettability. The potential for improved oil recovery from rate-sensitive carbonate reservoirs by increased injection pressure, increased injectivity, decreased well spacing or reduction of interfacial tension was evaluated.

Norman R. Morrow; Jill Buckley

2006-04-01T23:59:59.000Z

131

Analysis of environmental factors impacting the life cycle cost analysis of conventional and fuel cell/battery-powered passenger vehicles. Final report  

SciTech Connect (OSTI)

This report presents the results of the further developments and testing of the Life Cycle Cost (LCC) Model previously developed by Engineering Systems Management, Inc. (ESM) on behalf of the U.S. Department of Energy (DOE) under contract No. DE-AC02-91CH10491. The Model incorporates specific analytical relationships and cost/performance data relevant to internal combustion engine (ICE) powered vehicles, battery powered electric vehicles (BPEVs), and fuel cell/battery-powered electric vehicles (FCEVs).

NONE

1995-01-31T23:59:59.000Z

132

Plant power : the cost of using biomass for power generation and potential for decreased greenhouse gas emissions  

E-Print Network [OSTI]

To date, biomass has not been a large source of power generation in the United States, despite the potential for greenhouse gas (GHG) benefits from displacing coal with carbon neutral biomass. In this thesis, the fuel cycle ...

Cuellar, Amanda Dulcinea

2012-01-01T23:59:59.000Z

133

Displacement of oil from porous material with carbonated water  

E-Print Network [OSTI]

in the field. Although carbonated water gives good sweep efficiency, laboratory tests have shown that additional oil recoveries are not comparable to those with carbon dioxide gas slug process. In this investigation displacement tests were made with a low... and gas for pressure maintenance and secondary recovery has been common for years and has increased oil recoveries from many existing fields. Of late, several other processes have been proposed and investigated. Among them are thermal processes...

Yadav, Jagjit Singh

1967-01-01T23:59:59.000Z

134

Gas miscible displacement enhanced oil recovery: Technology status report  

SciTech Connect (OSTI)

Gas miscible displacement enhanced oil recovery research is conducted by the US Department of Energy's Morgantown Energy Technology Center to advance the application of miscible carbon dioxide flooding. This research is an integral part of a multidisciplinary effort to improve the technology for producing additional oil from US resources. This report summarizes the problems of the technology and the 1986 results of the ongoing research that was conducted to solve those problems. Poor reservoir volumetric sweep efficiency is the major problem associated with gas flooding and all miscible displacements. This problem results from the channeling and viscous fingering that occur due to the large differences between viscosity or density of the displacing and displaced fluids (i.e., carbon dioxide and oil, respectively). Simple modeling and core flooding studies indicate that, because of differences in fluid viscosities, breakthrough can occur after only 30% of the total pore volume (PV) of the rock has been injected with gas, while field tests have shown breakthrough occurring much earlier. The differences in fluid densities lead to gravity segregation. The lower density carbon dioxide tends to override the residual fluids in the reservoir. This process would be considerably more efficient if a larger area of the reservoir could be contacted by the gas. Current research has focused on the mobility control, computer simulation, and reservoir heterogeneity studies. Three mobility control methods have been investigated: (1) the use of polymers for direct thickening of high-density carbon dioxide, (2) mobile ''foam-like dispersions'' of carbon dioxide and an aqueous surfactant, and (3) in situ deposition of chemical precipitates. 22 refs., 14 figs., 6 tabs.

Not Available

1986-10-01T23:59:59.000Z

135

Compliant displacement-multiplying apparatus for microelectromechanical systems  

DOE Patents [OSTI]

A pivotless compliant structure is disclosed that can be used to increase the geometric advantage or mechanical advantage of a microelectromechanical (MEM) actuator such as an electrostatic comb actuator, a capacitive-plate electrostatic actuator, or a thermal actuator. The compliant structure, based on a combination of interconnected flexible beams and cross-beams formed of one or more layers of polysilicon or silicon nitride, can provide a geometric advantage of from about 5:1 to about 60:1 to multiply a 0.25-3 .mu.m displacement provided by a short-stroke actuator so that such an actuator can be used to generate a displacement stroke of about 10-34 .mu.m to operate a ratchet-driven MEM device or a microengine. The compliant structure has less play than conventional displacement-multiplying devices based on lever arms and pivoting joints, and is expected to be more reliable than such devices. The compliant structure and an associated electrostatic or thermal actuator can be formed on a common substrate (e.g. silicon) using surface micromachining.

Kota, Sridhar (9391 Quail Ridge Run, Brighton, MI 48114); Rodgers, M. Steven (12216 Papaya Ct., NE., Albuquerque, NM 87111); Hetrick, Joel A. (818 S. Gammon, Apartment 4, Madison, WI 53719)

2001-01-01T23:59:59.000Z

136

General Displaced SU (1,1) number states-revisited  

E-Print Network [OSTI]

The most general displaced number states, based on the bosonic and an irreducible representation(IREP) of the Lie algebra symmetry of su(1, 1) and associated to the Calogero-Sutherland model are introduced. Here, we utilize the Barut-Girardello displacement operator instead of the Klauder- Perelomov counterpart, to construct new kind of the displaced number states which can be classified in nonlinear coherent states regime, too, with special nonlinearity functions. They depend on two parameters, and can be converted into the well known Barut-Girardello coherent and number states respectively, depending on which of the parameters equal to zero. A discussion of the statistical properties of these states is included. Significant are their squeezing properties and anti bunching effects which can be raised by increasing the energy quantum number. Depending on the particular choice of the parameters of the above scenario, we are able to determine the status of compliance with flexible statistics. Major parts of the issue is spent on something that these states, in fact, should be considered as new kind of photon-added coherent states, too. Which can be reproduced through an iterated action of a creation operator on new nonlinear Barut-Girardello coherent states. Where the latter carry, also, outstanding statistical features.

A. Dehghani

2014-04-21T23:59:59.000Z

137

Dynamic structure factor of a stiff polymer in a glassy solution  

E-Print Network [OSTI]

We provide a comprehensive overview of the current theoretical understanding of the dynamic structure factor of stiff polymers in semidilute solution based on the wormlike chain (WLC) model. We extend previous work by computing exact numerical coefficients and an expression for the dynamic mean square displacement (MSD) of a free polymer and compare various common approximations for the hydrodynamic interactions, which need to be treated accurately if one wants to extract quantitative estimates for model parameters from experimental data. A recent controversy about the initial slope of the dynamic structure factor is thereby resolved. To account for the interactions of the polymer with a surrounding (sticky) polymer solution, we analyze an extension of the WLC model, the glassy wormlike chain (GWLC), which predicts near power-law and logarithmic long-time tails in the dynamic structure factor.

J. Glaser; O. Hallatschek; K. Kroy

2008-05-29T23:59:59.000Z

138

Pore-scale simulation of liquid CO2 displacement of water using...  

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

Pore-scale simulation of liquid CO2 displacement of water using a two-phase lattice Boltzmann model. Pore-scale simulation of liquid CO2 displacement of water using a two-phase...

139

ablation electrode-induced displacement: Topics by E-print Network  

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

Conflict Displacement and Labor Market Outcomes CiteSeer Summary: The 199295 war in Bosnia and Herzegovina (BiH) drove about 1.3 Million people into displacement (UNHCR). This...

140

Modification of the Dykstra-Parsons method to incorporate Buckley-Leverett displacement theory for waterfloods  

E-Print Network [OSTI]

The Dykstra-Parsons model describes layer 1-D oil displacement by water in multilayered reservoirs. The main assumptions of the model are: piston-like displacement of oil by water, no crossflow between the layers, all layers are individually...

Gasimov, Rustam Rauf

2005-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

E-Print Network 3.0 - apparent displacement st Sample Search...  

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

Failure of Lightly Confined Summary: . In contrast, no trends were apparent when the maximum displacement was quantified in terms of the displacement... 23 SP-236--2 Effects of...

142

Displacement-noise-free resonant speed meter for gravitational-wave detection  

E-Print Network [OSTI]

We demonstrate that speedmeter, based on double pumped resonant Sagnac interferometer, can be used as a displacement noise free gravitational-wave (GW) detector. The displacement noise of cavity mirrors can be completely excluded through a proper linear combination of the output signals. We show that in low-frequency region the obtained displacement-noise-free response signal is stronger than the one in previously proposed displacement noise free interferometers.

Sergey P. Vyatchanin

2008-08-26T23:59:59.000Z

143

Application of positive matrix factorization to on-road measurements for source apportionment of diesel- and gasoline-powered vehicle emissions in Mexico City  

E-Print Network [OSTI]

The goal of this research is to quantify diesel- and gasoline-powered motor vehicle emissions within the Mexico City Metropolitan Area (MCMA) using on-road measurements captured by a mobile laboratory combined with positive ...

Thornhill, D. A.

144

An improved shell of revolution element utilizing cubic displacement functions  

E-Print Network [OSTI]

-curved sheli of revolu Lion element developed by Stricklin, et al. ' uses polynomial displac ment functions similar 11 to Eq. (I. l) in the m. ridional direction and a Fourier series in the cir "umferential direction. For axisyrmetric loadinc, this fi. Id..., and e are defined in Fig. 2-1. The rotations of the normal to the shell about the o- and s -axes are defined by e&3 and e23, respectively. Using th, strains described in Eq, (2 . 4), the strai n energy expression for orthotropi c shells may...

Mebane, Paul Mitchell

2012-06-07T23:59:59.000Z

145

Finding New Thermoelectric Compounds Using Crystallographic Data: Atomic Displacement Parameters  

SciTech Connect (OSTI)

A new structure-property relationship is discussed which links atomic displacement parameters (ADPs) and the lattice thermal conductivity of clathrate-like compounds. For many clathrate-like compounds, in which one of the atom types is weakly bound and ''rattles'' within its atomic cage, room temperature ADP information can be used to estimate the room temperature lattice thermal conductivity, the vibration frequency of the ''rattler'', and the temperature dependence of the heat capacity. Neutron data and X-ray crystallography data, reported in the literature, are used to apply this analysis to several promising classes of thermoelectric materials.

Chakoumakos, B.C.; Mandrus, D.G.; Sales, B.C.; Sharp, J.W.

1999-08-29T23:59:59.000Z

146

Energy level displacement of excited np states of kaonic hydrogen  

E-Print Network [OSTI]

We compute the energy level displacement of the excited np states of kaonic hydrogen within the quantum field theoretic and relativistic covariant model of strong low-energy bar-KN interactions suggested in EPJA21, 11 (2004). For the width of the energy level of the excited 2p state of kaonic hydrogen, caused by strong low-energy interactions, we find Gamma_2p = 2 meV. This result is important for the theoretical analysis of the X-ray yields in kaonic hydrogen.

A. N. Ivanov; M. Cargnelli; M. Faber; H. Fuhrmann; V. A. Ivanova; J. Marton; N. I. Troitskaya; J. Zmeskal

2005-04-09T23:59:59.000Z

147

Carbonaceous adsorbent regeneration and halocarbon displacement by hydrocarbon gases  

DOE Patents [OSTI]

This invention describes a process for regeneration of halocarbon bearing carbonaceous adsorbents through which a carbonaceous adsorbent is contacted with hydrocarbon gases, preferably propane, butane and pentane at near room temperatures and at atmospheric pressure. As the hydrocarbon gases come in contact with the adsorbent, the hydrocarbons displace the halocarbons by physical adsorption. As a result of using this process, the halocarbon concentration and the hydrocarbon eluant is increased thereby allowing for an easier recovery of pure halocarbons. By using the process of this invention, carbonaceous adsorbents can be regenerated by an inexpensive process which also allows for subsequent re-use of the recovered halocarbons.

Senum, Gunnar I. (Patchogue, NY); Dietz, Russell N. (Patchogue, NY)

1994-01-01T23:59:59.000Z

148

Carbonaceous adsorbent regeneration and halocarbon displacement by hydrocarbon gases  

DOE Patents [OSTI]

This invention describes a process for regeneration of halocarbon bearing carbonaceous adsorbents through which a carbonaceous adsorbent is contacted with hydrocarbon gases, preferably propane, butane and pentane at near room temperatures and at atmospheric pressure. As the hydrocarbon gases come in contact with the adsorbent, the hydrocarbons displace the halocarbons by physical adsorption. As a result of using this process, the halocarbon concentration and the hydrocarbon eluant is increased thereby allowing for an easier recovery of pure halocarbons. By using the process of this invention, carbonaceous adsorbents can be regenerated by an inexpensive process which also allows for subsequent re-use of the recovered halocarbons. 8 figures.

Senum, G.I.; Dietz, R.N.

1994-04-05T23:59:59.000Z

149

Power Plant Power Plant  

E-Print Network [OSTI]

Basin Center for Geothermal Energy at University of Nevada, Reno (UNR) 2 Nevada Geodetic LaboratoryStillwater Power Plant Wabuska Power Plant Casa Diablo Power Plant Glass Mountain Geothermal Area Lassen Geothermal Area Coso Hot Springs Power Plants Lake City Geothermal Area Thermo Geothermal Area

Tingley, Joseph V.

150

The Noisy Power Method: A Meta Algorithm with Applications  

E-Print Network [OSTI]

-factorization of Y Output: Matrix XL Figure 1: Noisy Power Method (NPM) The noisy power method is a meta algorith

151

Pore-scale simulation of liquid CO2 displacement of water using a two-phase lattice Boltzmann model  

SciTech Connect (OSTI)

A lattice Boltzmann color-fluid model, which was recently proposed by Liu et al. [H. Liu, A.J. Valocchi, and Q. Kang. Three-dimensional lattice Boltzmann model for immiscible two-phase flow simulations. Phys. Rev. E, 85:046309, 2012.] based on a concept of continuum surface force, is improved to simulate immiscible two-phase flows in porous media. The new improvements allow the model to account for different kinematic viscosities of both fluids and to model fluid-solid interactions. The capability and accuracy of this model is first validated by two benchmark tests: a layered two-phase flow with a viscosity ratio, and a dynamic capillary intrusion. This model is then used to simulate liquid CO2 (LCO2) displacing water in a dual-permeability pore network. The extent and behavior of LCO2 preferential flow (i.e., fingering) is found to depend on the capillary number (Ca), and three different displacement patterns observed in previous micromodel experiments are reproduced. The predicted variation of LCO2 saturation with Ca, as well as variation of specific interfacial length with LCO2 saturation, are both in good agreement with the experimental observations. To understand the effect of heterogeneity on pore-scale displacement, we also simulate LCO2 displacing water in a randomly heterogeneous pore network, which has the same size and porosity as the dual-permeability pore network. In comparison to the dual-permeability case, the transition from capillary fingering to viscous fingering occurs at a higher Ca, and LCO2 saturation is higher at low Ca but lower at high Ca. In either pore network, the LCO2-water specific interfacial length is found to obey a power-law dependence on LCO2 saturation.

Liu, Haihu; Valocchi, Albert J.; Werth, Charles J.; Kang, Oinjun; Oostrom, Martinus

2014-11-01T23:59:59.000Z

152

Performance comparison of fiber tips in interferometric displacement mesurements  

SciTech Connect (OSTI)

Fiber optic displacement sensors have many potential advantages over traditional displacement measurement techniques, including small size, immunity to electromagnetic interference, electrical isolation, and high resolution. In this report, we focus on an interferometric fiber optic sensor, where the gap between the fiber tip and the device under test forms a Fabry-Perot resonant cavity. An optical interrogator measures the reflected intensity at wavelengths ranging from 1510 to 1590 nm. The spacing between resonant frequencies allows us to determine the distance from the tip to the device under test. We consider ferrule connector angled physical contact (FC/APC), ferrule connector ultra physical contact (FC/UPC) and unpolished cleaved tips and compare their influence on sensor performance. A plane wave propagation model is proposed for predicting tip effects. Comparisons are made on the basis of sensor measurement range, resolution, and sensitivity to changes in test conditions. In this paper, we discuss the experimental setup, detail our analysis, and present test results with recommendations for the applications of each tip.

Moro, Erik [Los Alamos National Laboratory; Grahn, Rick R [Los Alamos National Laboratory; Karimi, Hussain H [Los Alamos National Laboratory; Wilson, Kyle L [Los Alamos National Laboratory; Puckett, Anthony D [Los Alamos National Laboratory

2011-01-24T23:59:59.000Z

153

Performance comparison of fiber optic tips in interferrometric displacement measurement  

SciTech Connect (OSTI)

Fiber optic displacement sensors have many potential advantages over traditional displacement measurement techniques, including small size, immunity to electromagnetic interference, electrical isolation, and high resolution. In this report, we focus on an interferometric fiber optic sensor, where the gap between the fiber tip and the device under test forms a Fabry-Perot resonant cavity. An optical interrogator measures the reflected intensity at wavelengths ranging from 1510 to 1590 nm. The spacing between resonant frequencies allows us to determine the distance from the tip to the device under test. We consider ferrule connector angled physical contact (FC/APC), ferrule connector ultra physical contact (FC/UPC) and unpolished cleaved tips and compare their influence on sensor performance. A plane wave propagation model is proposed for predicting tip effects. Comparisons are made on the basis of sensor measurement range, resolution, and sensitivity to changes in test conditions. In this paper, we discuss the experimental setup, detail our analysis, and present test results with recommendations for the applications of each tip.

Moro, Erik A [Los Alamos National Laboratory; Puckett, Anthony D [Los Alamos National Laboratory; Grahn, Rick [UNM; Karimi, Hussain [UCSD; Wilson, Kyle [ROSE HULMAN INSTITUTE OT TECH.

2010-10-21T23:59:59.000Z

154

Regeneration of strong-base anion-exchange resins by sequential chemical displacement  

DOE Patents [OSTI]

A method for regenerating strong-base anion exchange resins utilizing a sequential chemical displacement technique with new regenerant formulation. The new first regenerant solution is composed of a mixture of ferric chloride, a water-miscible organic solvent, hydrochloric acid, and water in which tetrachloroferrate anion is formed and used to displace the target anions on the resin. The second regenerant is composed of a dilute hydrochloric acid and is used to decompose tetrachloroferrate and elute ferric ions, thereby regenerating the resin. Alternative chemical displacement methods include: (1) displacement of target anions with fluoroborate followed by nitrate or salicylate and (2) displacement of target anions with salicylate followed by dilute hydrochloric acid. The methodology offers an improved regeneration efficiency, recovery, and waste minimization over the conventional displacement technique using sodium chloride (or a brine) or alkali metal hydroxide.

Brown, Gilbert M. (Knoxville, TN); Gu, Baohua (Oak Ridge, TN); Moyer, Bruce A. (Oak Ridge, TN); Bonnesen, Peter V. (Knoxville, TN)

2002-01-01T23:59:59.000Z

155

A. Pourmovahed1 Power Systems Research Department,  

E-Print Network [OSTI]

- wheel. A Rexroth variable-displacement pump/motor in com- bination with two foam-filled Parker piston in the accumulators when they were being charged. Ball valve No. 1 and an orifice isolated the power supply from is given by Baum (1987). The rest of the circuit consisted of two ball valves and a 38- liter (10-gallon

Bahrami, Majid

156

Type I error and power of the mean and covariance structure confirmatory factor analysis for differential item functioning detection: Methodological issues and resolutions  

E-Print Network [OSTI]

and latent constructs (i.e., trait, denoted by 𝜉𝜉). In the MACS model, the observed response 𝑥𝑥𝑖𝑖 to an item i (i = 1, , p) is represented as a linear function of an intercept 𝜏𝜏𝑖𝑖 , latent trait variables 𝜉𝜉𝑖𝑖 (j = 1, , m), and a unique... is a p 1 vector of observed responses (in group g), 𝜏𝜏𝑔𝑔 is a p 1 vector of intercepts, 𝜉𝜉𝑔𝑔 is an m 1 vector of latent trait variables, ?𝑔𝑔 is a p m matrix of factor loadings, and 𝛿𝛿𝑔𝑔 is a p 1 vector of unique factor...

Lee, Jaehoon

2009-01-01T23:59:59.000Z

157

E-Print Network 3.0 - atomic displacement cross-sections Sample...  

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

Summary: Background Data evaluation methodology (KIT) Displacement damage and gas production cross- section data... cross-section ddT : recoil energy distribution Ed :...

158

Room air stratification in combined chilled ceiling and displacement ventilation systems.  

E-Print Network [OSTI]

Environments. Proceedings of Indoor Air 2005: 10 thInternational Conference on Indoor Air Quality and Climate,displacement ventilation hybrid air conditioning system-

Schiavon, Stefano; Bauman, Fred; Tully, Brad; Rimmer, Julian

2012-01-01T23:59:59.000Z

159

Precision laser surveying instrument using atmospheric turbulence compensation by determining the absolute displacement between two laser beam components  

DOE Patents [OSTI]

Atmospheric effects on sighting measurements are compensated for by adjusting any sighting measurements using a correction factor that does not depend on atmospheric state conditions such as temperature, pressure, density or turbulence. The correction factor is accurately determined using a precisely measured physical separation between two color components of a light beam (or beams) that has been generated using either a two-color laser or two lasers that project different colored beams. The physical separation is precisely measured by fixing the position of a short beam pulse and measuring the physical separation between the two fixed-in-position components of the beam. This precisely measured physical separation is then used in a relationship that includes the indexes of refraction for each of the two colors of the laser beam in the atmosphere through which the beam is projected, thereby to determine the absolute displacement of one wavelength component of the laser beam from a straight line of sight for that projected component of the beam. This absolute displacement is useful to correct optical measurements, such as those developed in surveying measurements that are made in a test area that includes the same dispersion effects of the atmosphere on the optical measurements. The means and method of the invention are suitable for use with either single-ended systems or a double-ended systems.

Veligdan, James T. (Manorville, NY)

1993-01-01T23:59:59.000Z

160

DISPLACEMENT CASCADE SIMULATION IN TUNGSTEN AT 1025 K  

SciTech Connect (OSTI)

Molecular dynamics simulation was employed to investigate the irradiation damage properties of bulk tungsten at 1025 K (0.25 melting temperature). A comprehensive data set of primary cascade damage was generated up to primary knock-on atom (PKA) energies 100 keV. The dependence of the number of surviving Frenkel pairs (NFP) on the PKA energy (E) exhibits three different characteristic domains presumably related to the different cascade morphologies that form. The low-energy regime < 0.2 keV is characterized by a hit-or-miss type of Frenkel pair (FP) production near the displacement threshold energy of 128 eV. The middle regime 0.3 30 keV exhibits a sublinear dependence of log(NFP) vs log(E) associated with compact cascade morphology with a slope of 0.73. Above 30 keV, the cascade morphology consists of complex branches or interconnected damage regions. In this extended morphology, large interstitial clusters form from superposition of interstitials from nearby damage regions. Strong clustering above 30 keV results in a superlinear dependence of log(NFP) vs log(E) with a slope of 1.365. At 100 keV, an interstitial cluster of size 92 and a vacancy cluster of size 114 were observed.

Setyawan, Wahyu; Nandipati, Giridhar; Roche, Kenneth J.; Heinisch, Howard L.; Kurtz, Richard J.; Wirth, Brian D.

2013-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

A linear dynamic analysis of stiffened shells of revolution by the matrix displacement method  

E-Print Network [OSTI]

displacement approach and Houbolt's numerical method of integration. The stiffened shell structure considered here is a combination of shell structure with either meridional or circumferential stiff- eners or both. The structure is idealized... Survey Shell Structures. Stiffened Shell Structures. Objective Scope of Investigation. 1 4 4 8 13 15 II GENERAL DESCRIPTION OF THE MATRIX DISPLACEMENT METHOD. . . . . . . . . . . . . . . . . . . . . 17 Static Analysis Dynamic Analysis. 17...

Hoover, Charlie Doll

2012-06-07T23:59:59.000Z

162

Interface instabilities during displacements of two miscible fluids in a vertical pipe  

E-Print Network [OSTI]

Interface instabilities during displacements of two miscible fluids in a vertical pipe J. Scoffoni vertical displacement of one miscible fluid by another in a vertical pipe at sufficiently high velocities. INTRODUCTION The hydrodynamic stability of two-phase flow in pipes and channels has been the subject of many

Lajeunesse, Eric

163

Morphology, displacement, and slip rates along the North Anatolian Fault, Turkey  

E-Print Network [OSTI]

Morphology, displacement, and slip rates along the North Anatolian Fault, Turkey Aure´lia Hubert, Ayazaga, Istanbul, Turkey Received 29 January 2001; revised 8 January 2002; accepted 13 January 2002 the central and eastern North Anatolian Fault (NAF) in Turkey. The NAF total displacement is reevaluated using

Hubert-Ferrari, Aurélia

164

Balanced electronic detection of displacement in nanoelectromechanical K. L. Ekinci,a)  

E-Print Network [OSTI]

describe a broadband radio frequency balanced bridge technique for electronic detection of displacement semiconductor NEMS and may provide benefits to other high frequency displacement transduction circuits. 2002 The balanced circuit shown in Fig. 1 b with a NEMS resonator on one side of the bridge and a ma

165

Elastic displacements and step interactions on metallic surfaces: GIXD and ab initio study of Au(332)  

E-Print Network [OSTI]

-range displacement fields generated by atomic relaxations at the steps.10 It is generally assumed that the most authors have come up with elastic models to describe step-step interactions.10,11,12,13,14 In generalElastic displacements and step interactions on metallic surfaces: GIXD and ab initio study of Au

Paris-Sud XI, Université de

166

RELATIONSHIPS BETWEEN ZOOPLANKTON DISPLACEMENT VOLUME, WET WEIGHT, DRY WEIGHT, AND CARBONI  

E-Print Network [OSTI]

of the regression line for log transformed values for carbon vs. dry weight and wet weight vs. displacement volumeRELATIONSHIPS BETWEEN ZOOPLANKTON DISPLACEMENT VOLUME, WET WEIGHT, DRY WEIGHT, AND CARBONI PETER H are identical. We have employed this type of analysis in determinations on samples from diverse sea areas

167

On the Origin of Large Interstitial Clusters in Displacement Cascades  

SciTech Connect (OSTI)

Displacement cascades with wide ranges of primary knock-on atom (PKA) energy and mass in iron were simulated using molecular dynamics. New visualisation techniques are introduced to show how the shock-front dynamics and internal structure of a cascade develop over time. These reveal that the nature of the final damage is determined early on in the cascade process. We define a zone (termed 'spaghetti') in which atoms are moved to new lattice sites and show how it is created by a supersonic shock-front expanding from the primary recoil event. A large cluster of self-interstitial atoms can form on the periphery of the spaghetti if a hypersonic recoil creates damage with a supersonic shock ahead of the main supersonic front. When the two fronts meet, the main one injects atoms into the low-density core of the other: these become interstitial atoms during the rapid recovery of the surrounding crystal. The hypersonic recoil occurs in less than 0.1 ps after the primary recoil and the interstitial cluster is formed before the onset of the thermal spike phase of the cascade process. The corresponding number of vacancies is then formed in the spaghetti core as the crystal cools, i.e. at times one to two orders of magnitude longer. By using the spaghetti zone to define cascade volume, the energy density of a cascade is shown to be almost independent of the PKA mass. This throws into doubt the conventional energy-density interpretation of an increased defect yield with increasing PKA mass in ion irradiation.

Andrew, Calder F [University of Liverpool; Barashev, Aleksandr [University of Liverpool; Bacon, David J [University of Liverpool; Osetskiy, Yury N [ORNL

2010-01-01T23:59:59.000Z

168

Temperature-dependent structural property and power factor of n type thermoelectric Bi{sub 0.90}Sb{sub 0.10} and Bi{sub 0.86}Sb{sub 0.14} alloys  

SciTech Connect (OSTI)

Thermal variation of structural property, linear thermal expansion coefficient (?), resistivity (?), thermopower (S), and power factor (PF) of polycrystalline Bi{sub 1-x}Sb{sub x} (x?=?0.10 and 0.14) samples are reported. Temperature-dependent powder diffraction experiments indicate that samples do not undergo any structural phase transition. Rietveld refinement technique has been used to perform detailed structural analysis. Temperature dependence of ? is found to be stronger for Bi{sub 0.90}Sb{sub 0.10}. Also, PF for direct band gap Bi{sub 0.90}Sb{sub 0.10} is higher as compared to that for indirect band gap Bi{sub 0.86}Sb{sub 0.14}. Role of electron-electron and electron-phonon scattering on ?, S, and PF has been discussed.

Malik, K.; Das, Diptasikha [Department of Physics, University of Calcutta, 92 A P C Road, Kolkata 700 009 (India)] [Department of Physics, University of Calcutta, 92 A P C Road, Kolkata 700 009 (India); Bandyopadhyay, S.; Banerjee, Aritra, E-mail: arbphy@caluniv.ac.in [Department of Physics, University of Calcutta, 92 A P C Road, Kolkata 700 009 (India) [Department of Physics, University of Calcutta, 92 A P C Road, Kolkata 700 009 (India); Center for Research in Nanoscience and Nanotechnology, University of Calcutta, JD-2, Sector-III, Saltlake City, Kolkata 700 098 (India); Mandal, P.; Srihari, Velaga [Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700 064 (India)] [Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700 064 (India); Deb, A. K. [Department of Physics, Raiganj College (University College), Uttar Dinajpur 733 134 (India)] [Department of Physics, Raiganj College (University College), Uttar Dinajpur 733 134 (India)

2013-12-09T23:59:59.000Z

169

Effect of Body Mass Index on Intrafraction Prostate Displacement Monitored by Real-Time Electromagnetic Tracking  

SciTech Connect (OSTI)

Purpose: To evaluate, using real-time monitoring of implanted radiofrequency transponders, the intrafraction prostate displacement of patients as a function of body mass index (BMI). Methods and Materials: The motions of Beacon radiofrequency transponders (Calypso Medical Technologies, Seattle, WA) implanted in the prostate glands of 66 men were monitored throughout the course of intensity modulated radiation therapy. Data were acquired at 10 Hz from setup to the end of treatment, but only the 1.7 million data points with a 'beam on' tag were used in the analysis. There were 21 obese patients, with BMI {>=}30 and 45 nonobese patients in the study. Results: Mean displacements were least in the left-right lateral direction (0.56 {+-} 0.24 mm) and approximately twice that magnitude in the superior-inferior and anterior-posterior directions. The net vector displacement was larger still, 1.95 {+-} 0.47 mm. Stratified by BMI cohort, the mean displacements per patient in the 3 Cartesian axes as well as the net vector for patients with BMI {>=}30 were slightly less (<0.2 mm) but not significantly different than the corresponding values for patients with lower BMIs. As a surrogate for the magnitude of oscillatory noise, the standard deviation for displacements in all measured planes showed no significant differences in the prostate positional variability between the lower and higher BMI groups. Histograms of prostate displacements showed a lower frequency of large displacements in obese patients, and there were no significant differences in short-term and long-term velocity distributions. Conclusions: After patients were positioned accurately using implanted radiofrequency transponders, the intrafractional displacements in the lateral, superior-inferior, and anterior-posterior directions as well as the net vector displacements were smaller, but not significantly so, for obese men than for those with lower BMI.

Butler, Wayne M., E-mail: wbutler@wheelinghospital.org [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States); Wheeling Jesuit University, Wheeling, West Virginia (United States); Morris, Mallory N. [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States)] [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States); Merrick, Gregory S. [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States) [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States); Wheeling Jesuit University, Wheeling, West Virginia (United States); Kurko, Brian S.; Murray, Brian C. [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States)] [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States)

2012-10-01T23:59:59.000Z

170

North Carolina FY 2009-2010 Petroleum Displacement Program Report Citation of Law or Resolution: SL2009-451  

E-Print Network [OSTI]

displaced petroleum use in vehicles through the use of alternative fuels, advanced vehicle technology use 4.7 percent displaced through biodiesel use 4.3 percent displaced through efficiency 0.2 percent,108,000 reported last year and far more than baseline year use of 598,000 gallons. · Biodiesel, most commonly B20

171

The CR 2.0mm (.079") insulation displacement connector features a mounting height as low as  

E-Print Network [OSTI]

7 The CR 2.0mm (.079") insulation displacement connector features a mounting height as low as 6.9mm") pitch insulation displacement connector allows automatic harness production for connection of UL1007 of misinsertion without being permanently distorted. Twin U-slot insulation displacement section The insulation

Wedeward, Kevin

172

E-Print Network 3.0 - atomic displacement cascades Sample Search...  

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

of Nuclear Materials 155-157 (1988) 1263-1267 North-Holland, Amsterdam Summary: " of the tree in a zone extending over 100 to 200 nm. The stoichiometry of displacements within the...

173

Beyond a Billion: Clean Cities Coaliations Have Displaced More Than a Billion Gallons of Gasoline  

SciTech Connect (OSTI)

In 2004, DOE's Clean Cities achieved a milestone - displacing the equivalent of more than 1 billion gallons of gasoline since 1994. This fact sheet describes how Clean Cities achieved this goal.

Not Available

2005-10-01T23:59:59.000Z

174

Laboratory systems used in the investigation of miscible displacement in porous media  

E-Print Network [OSTI]

37:595-601. 7. Diefenderfer, James A. 1972. Principle of Electronic Instrumentation. W. B. Saunders Co. Philadelphia. 675 p. 8. Elrick, D. E. , K. T. Erh and H. K. Krupp. 1966. Application:; of mi cible displacement technique. : to soil...

Barnes, Philip

1977-01-01T23:59:59.000Z

175

Improving Petroleum Displacement Potential of PHEVs Using Enhanced Charging Scenarios: Preprint  

SciTech Connect (OSTI)

Describes NREL's R&D on the petroleum displacement potential of plug-in hybrid vehicles; vehicles charged during the day would save about 5% more fuel than those charged at night.

Markel, T.; Smith, K.; Pesaran, A. A.

2009-05-01T23:59:59.000Z

176

Experimental Study of the Floor Radiant Cooling System Combined with Displacement Ventilation  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency, Vol. IV-11-4 Experimental Study of the Floor Radiant Cooling System Combined with Displacement Ventilation Yanli Ren1, Deying Li2, Yufeng Zhang1 1...

Ren, Y.; Li, D.; Zhang, Y.

2006-01-01T23:59:59.000Z

177

Atomistic Modeling of Displacement Cascades in La2Zr2O7 Pyrochlore...  

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

static calculations. Citation: Chartier A, C Meis, JP Crocombette, LR Corrales, and WJ Weber.2003."Atomistic Modeling of Displacement Cascades in La2Zr2O7 Pyrochlore."Physical...

178

Positively and negatively large Goos-Hnchen lateral displacements from a symmetric gyrotropic slab  

E-Print Network [OSTI]

A detailed study on the lateral displacements of a transverse magnetic (TM) wave transmitted and reflected from a symmetric gyrotropic slab is presented. We give the analytic formulas for the transmission coefficient and ...

Wu, Bae-Ian

179

Experimental investigation of an oscillating circular piston positive displacement flowmeter: I - Piston movement and pressure losses.  

E-Print Network [OSTI]

Tests of an oscillating circular piston positive displacement flowmeter are described which focused on the effect on pressure drop across the meter of variation in key parameters. These included flow rate, liquid density and viscosity, mass...

Morton, Charlotte E; Hutchings, Ian M; Baker, Roger C

180

Experimental investigation of an oscillating circular piston positive displacement flowmeter: II - Leakage flows and wear tests.  

E-Print Network [OSTI]

Experimental data from an oscillating circular piston positive displacement flowmeter are described which focused on leakage flows and wear. This is the second part of a two part paper on the experimental tests, the first part concerned piston...

Morton, Charlotte E; Baker, Roger C; Hutchings, Ian M

Note: This page contains sample records for the topic "displacement power factor" 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

Effect of tube length on laboratory displacement of oil by CO?  

E-Print Network [OSTI]

EFFECT OF TUBE LENGTH ON LABORATORY DISPLACEMENT OF OIL BY CO 2 A Thesis by WAFIK H. " TURKI Submitted to the Graduate College of Texas AhM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December... 1973 Major Subject: Petroleum Engineering EFFECT OF TUBE LENGTH ON LABORATORY DISPLACEMENT OF OIL BY CO A Thesis by WAFIK H. TURKI Approved as to style and content by: (Chair n of Committee) (Head of Department) (Member) (Member ) Z. ~-g...

Turki, Wafik Hussein

1973-01-01T23:59:59.000Z

182

A study of miscible displacement of oil by means of micellar solution injection  

E-Print Network [OSTI]

A STUDY OF MISCIBLE DISPLACEMENT OF OIL BY MEANS OF MICELLAR SOLUTION IN SEC TION A Thesis by FEREIDOON SHARIFI-MONFARED Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE May, 1971 Major Subject: Petroleum Engineering A STUDY GF MISCIBLE DISPLACEMENT OF OIL BY MEANS GF MICELLAR SOLUTION INJECTION A Thesis by FEREIDOON SHARIFI-MONFARED Approved as to style and content by: (Chai rxn of Comxnittee...

Sharifi-Monfared, Fereidoon

1971-01-01T23:59:59.000Z

183

Displacement of oil from reservoir rock using high molecular weight polymer solutions  

E-Print Network [OSTI]

underground reservoirs by the injection of water containing chemicals to increase its viscosity. Some laboratory research and field trials have been conducted to evaluate the effectiveness of viscous water in dis- placing oil from reservoir rock.... ia. Twenty-eight experiments were conducted. In twenty-two experiments oil was displaced from un- consolidated sand packs using polymers with viscosity that ranged from 160 cp to 3 cp. In five experiments crude oil was displaced. from...

Barzi, Houshang

1972-01-01T23:59:59.000Z

184

Most Viewed Documents for Power Generation and Distribution:...  

Office of Scientific and Technical Information (OSTI)

Methods for Power Distribution Systems: Final Report Tom McDermott (2010) 34 Industrial Power Factor Analysis Guidebook. Electrotek Concepts. (1995) 29 Recovery of Water from...

185

FIELD TRIALS OF NEWLY DEVELOPED POSITIVE DISPLACEMENT SUBMERSIBLE PUMP  

SciTech Connect (OSTI)

The purpose of this grant was to evaluate under real world conditions the performance of a new type of downhole pump, the hydraulically driven submersible diaphragm pump. This pump is supplied by Pumping Solutions Incorporated, Albuquerque NM. The original scope of the project was to install 10 submersible pumps, and compare that to 10 similar installations of rod pumps. As an operator, the system as tested was not ready for prime time. The PSI group did improve the product and offered excellent service. The latest design appears to be much better, but more test data is needed to show short run life is not a problem. This product should continue to be developed; the testing did not uncover any fundamental problems that would preclude it's widespread use. On the positive side, the pump was easy to run, was more power efficient then a rod pump, and is the only submersible that could handle the large quantities of solids typical of CBM production. The product shows much promise for the future, and with continued design and testing, this type of submersible pump has the potential to become the standard of the industry.

Rob Beard; Leland Traylor

2002-12-01T23:59:59.000Z

186

Globalization, Power and Survival: an Anthropological Perspective Marc Abls  

E-Print Network [OSTI]

Globalization, Power and Survival: an Anthropological Perspective Marc Abls Ecole des Hautes the economic aspect of globalization and it is true that globalization corresponds to a displacement from a primarily industry-based economy to one where working on concepts plays a major role and where trade growth

Boyer, Edmond

187

NAPS 2003, 35th North American Power Symposium, University of Missouri-Rolla in Rolla, Missouri, October 20-21, 2003. pp. 559-566. Abstract--Security of supply has been always a key factor  

E-Print Network [OSTI]

as a terrorist attack to some key power plants or transmission lines. Since September 11, 2001 the threat three kinds of threats over society: a) Attacks upon the power system. Here the target is the electricNAPS 2003, 35th North American Power Symposium, University of Missouri-Rolla in Rolla, Missouri

Catholic University of Chile (Universidad Catlica de Chile)

188

Don't Miss the Displaced Higgs at the LHC Again  

E-Print Network [OSTI]

A signature often found in non-minimal Higgs sectors is Higgs decay to a new gauge-singlet scalar, followed by decays of the singlets into Standard Model fermions through small mixing angles. The scalar decay can naturally be displaced from the primary vertex. The present experimental constraints on such models are extremely weak, due to low (or zero) trigger rates for the resulting low $p_T$ displaced jets. In this letter, we highlight the advantages of integrating into the trigger system massively parallel computing and coprocessors based on Graphics Processing Units (GPUs) or the Many Integrated Core (MIC) architecture. In particular, if such coprocessors are added to the LHC experiments' high level trigger systems, a fast Hough transform based triggers performed on this hardware would result in significant improvement to displaced searches, sufficient to discover long-lived Higgs models with a small amount of luminosity in Run II at the 14 TeV LHC.

Matthew R. Buckley; Valerie Halyo; Paul Lujan

2014-05-08T23:59:59.000Z

189

Effect of core length on laboratory displacement of oil by CO? in sandstone  

E-Print Network [OSTI]

EXPECT OP CORE LENGTH ON LABORATORY DISPLACEMENT OP OIL BY C02 IN SANDSTONE A Thesis by KENNETH YUN KWONG CHAN Submitted to the Graduate College of Texas khM University in partial fulfillment of the requirement for the degree of MASTER OP... SCIENCE August 1974 Major Subject: Petroleum Engineering EPACT OP CORE LENGTH ON LABORATORY DISPLACEMENT Oy OIL BY COR IN SANDSTONE A Thesis by KENNETH YUN KWONG CHAN Approved as to style and content by: a an o omm ee ea o Department ember Mem...

Chan, Kenneth Yun-Kwong

1974-01-01T23:59:59.000Z

190

Performance characterization of an internsity-modulated fiber optic displacement sensor  

SciTech Connect (OSTI)

A testbed simulating an intensity-modulated fiber optic displacement sensor is experimentally characterized, and the implications regarding sensor design are discussed. Of interest are the intensity distribution of the transmitted optical signal and the relationships between sensor architecture and performance. Particularly, an intensity-modulated sensor's sensitivity, linearity, displacement range, and resolution are functions of the relative positioning of its transmitting and receiving fibers. In this paper, sensor architectures with various combinations of these performance metrics are discussed. A sensor capable of micrometer resolution is reported, and it is concluded that this work could lead to an improved methodology for sensor design.

Moro, Erik Allan [Los Alamos National Laboratory; Todd, Michael D [Los Alamos National Laboratory; Puckett, Santhony D [Los Alamos National Laboratory

2010-09-30T23:59:59.000Z

191

The displacement of oil from porous media by in-situ combustion  

E-Print Network [OSTI]

combustion. The temperature of the combustion front was also higher in the ex- periments where water and air were injected to displace the high viscosity oil as compared to the experiments where air was injected alone to support combustion... porous media by in-situ combustion and to develop a technique using in-situ combustion which might have wide applica- tion in the oil industry. A three-step procedure for displacing both a low viscosity oil and a high viscosity oil from porous medium...

Corcoran, John Thomas

1970-01-01T23:59:59.000Z

192

Illinois Nuclear Profile - Clinton Power Station  

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

Clinton Power Station" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration date"...

193

Massachusetts Nuclear Profile - Pilgrim Nuclear Power Station  

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

Pilgrim Nuclear Power Station" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer cpacity factor (percent)","Type","Commercial operation date","License...

194

Power Quality Improvement in Microgrid Using Advanced Active Power Conditioner  

E-Print Network [OSTI]

Abstract:- Wind energy conversion systems are now occupying important space in the research of renewable energy sources with microgrid. The main challenge in wind power generation is power quality problem and their connection with the distribution network in microgrid. The main factor behind poor

unknown authors

195

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

196

Load capacity and rupture displacement in viscoelastic fiber bundles Theocharis Baxevanis1,  

E-Print Network [OSTI]

for this critical load is given. For stress levels below the critical value, the system suffers only partial failureLoad capacity and rupture displacement in viscoelastic fiber bundles Theocharis Baxevanis1 loading, assuming global load sharing GLS for the redistribution of load following fiber failure. We

Katsaounis, Theodoros D.

197

Valuation of plug-in vehicle life-cycle air emissions and oil displacement benefits  

E-Print Network [OSTI]

potential of plug-in vehicles remains small compared to ownership cost. As such, to offer a socially efficient approach to emissions and oil consumption reduction, lifetime cost of plug-in vehicles mustValuation of plug-in vehicle life-cycle air emissions and oil displacement benefits Jeremy J

Michalek, Jeremy J.

198

Behaviour of oil ganglia displaced by a surfactant solution in a porous medium  

E-Print Network [OSTI]

L-97 Behaviour of oil ganglia displaced by a surfactant solution in a porous medium J. C. Moulu'importance relative des forces de viscosit et des forces capillaires. Abstract. 2014 The velocity of oil ganglia residual oil phase by water injection in a porous medium [1, 2]. These studies have demonstrated

Boyer, Edmond

199

Forced oil-water displacement and spontaneous countercurrent imbibition are the crucial mechanisms of secondary oil  

E-Print Network [OSTI]

Abstract Forced oil-water displacement and spontaneous countercurrent imbibition are the crucial mechanisms of secondary oil recovery. Classical mathematical models of both these unsteady flows are based on the fundamental assumption of local phase equilibrium. Thus, the water and oil flows are locally redistributed

Patzek, Tadeusz W.

200

MEASURING THERMOMECHANICAL DISPLACEMENTS OF SOLAR CELLS IN LAMINATES USING DIGITAL IMAGE CORRELATION  

E-Print Network [OSTI]

, is necessary in the usual process of module manufacturing. DIGITAL IMAGE CORRELATION TECHNIQUE The methodMEASURING THERMOMECHANICAL DISPLACEMENTS OF SOLAR CELLS IN LAMINATES USING DIGITAL IMAGE and the polymers. We demonstrate that the digital image correlation technique (DIC) is capable of measuring

Note: This page contains sample records for the topic "displacement power factor" 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

Eects of eye position on estimates of eye displacement for spatial updating  

E-Print Network [OSTI]

E¡ects of eye position on estimates of eye displacement for spatial updating Masaki Tanaka cortex represent spatial memory of visual stimuli in an eye-centered coordinate frame. To preserve spatial stability across eye movements, spatial memory must be updated during each eye movement. Because

Crawford, Doug

202

Supplementary Information for: Integrating DNA Strand Displacement Circuitry with DNA Tile Self-assembly  

E-Print Network [OSTI]

Supplementary Information for: Integrating DNA Strand Displacement Circuitry with DNA Tile Self-assembly of Contents: · Supplementary Figures 1. Native polyacrylamide gel electrophoresis of DNA tile self-assembly 2. UV absorbance annealing and melting curves of DNA tile self-assembly 3. Characterization

Zhang, David Yu

203

Abrupt climate shifts in Greenland due to displacements of the sea ice edge  

E-Print Network [OSTI]

that a reduction in sea ice extent in the North Atlantic produces a climatic response consistent with abruptAbrupt climate shifts in Greenland due to displacements of the sea ice edge Camille Li,1 David S ice could be changes in ocean thermohaline circulation (OTC) or rearrangements of the tropical

Schrag, Daniel

204

Normal Stresses and Interface Displacement: Influence of Viscoelasticity on Enhanced Oil  

E-Print Network [OSTI]

Normal Stresses and Interface Displacement: Influence of Viscoelasticity on Enhanced Oil Recovery assiste -- Une des mthodes de rcupration assiste du ptrole (EOR - Enhanced Oil Recovery) consiste Recovery Efficiency -- One of chemical Enhanced Oil Recovery (EOR) methods consists in injecting aqueous

Paris-Sud XI, Universit de

205

Prediction of the tool displacement for robot milling applications using coupled models of an industrial  

E-Print Network [OSTI]

. INTRODUCTION The major fields of machining applications for industrial robots are automated pre- machining an industrial robot for milling applications inaccuracies of the serial robot kinematic, the low structuralPrediction of the tool displacement for robot milling applications using coupled models

Stryk, Oskar von

206

Autonomous Crack Displacement Monitoring of a Residence Near a Quarry David E. Kosnik, Northwestern University  

E-Print Network [OSTI]

Autonomous Crack Displacement Monitoring of a Residence Near a Quarry David E. Kosnik, Northwestern remote mon- itoring of cracks in interior and exterior walls of a residence near a limestone quarry for construction and raw materials. For instance, neighbors of road aggregate quarries often perceive

207

Autonomous Remote Crack Displacement Monitoring of a Residence Near a Limestone  

E-Print Network [OSTI]

Autonomous Remote Crack Displacement Monitoring of a Residence Near a Limestone Quarry, Naples a limestone quarry. The object is to quantitatively compare crack re- sponse to blast-induced ground motion for construction and raw materials. For instance, neighbors of road aggregate quarries often perceive

208

Contamination-pipetting: relative efficiency of filter tips compared to Microman positive displacement pipette  

E-Print Network [OSTI]

of contamination when working with infectious, toxic, corrosive or radioactive agents. Tip manufacturers haveContamination-pipetting: relative efficiency of filter tips compared to Microman® positive displacement pipette Filter tips are generally accepted as the solution for preventing cross-contamination

Cai, Long

209

The Impact of Wind Power Projects on Residential Property Values in the United States: A Multi-Site Hedonic Analysis  

E-Print Network [OSTI]

2002) Economic Impacts of Wind Power in Kittitas County, WA.about Large Offshore Wind Power: Underlying Factors. EnergyOpinion on Offshore Wind Power - Interim Report. University

Hoen, Ben

2010-01-01T23:59:59.000Z

210

Gantry and isocenter displacements of a linear accelerator caused by an add-on micromultileaf collimator  

SciTech Connect (OSTI)

Purpose: The delivery of high quality stereotactic radiosurgery (SRS) and stereotactic radiotherapy (SRT) treatments to the patient requires knowledge of the position of the isocenter to submillimeter accuracy. To meet the requirements the deviation between the radiation and mechanical isocenters must be less than 1 mm. The use of add-on micromultileaf collimators ({mu}MLCs) in SRS and SRT is an additional challenge to the anticipated high-level geometric and dosimetric accuracy of the treatment. The aim of this work was to quantify the gantry excursions during rotation with and without an add-on {mu}MLC attached to the gantry head. In addition, the shift in the position of the isocenter and its correlation to the kV beam center of the cone-beam CT system was included in the study. Methods: The quantification of the gantry rotational performance was done using a pointer supported by an in-house made rigid holder attached to the gantry head of the accelerator. The pointer positions were measured using a digital theodolite. To quantify the effect of an {mu}MLC of 50 kg, the measurements were repeated with the {mu}MLC attached to the gantry head. The displacement of the isocenter due to an add-on {mu}MLC of 50 kg was also investigated. In case of the pointer measurement the {mu}MLC was simulated by weights attached to the gantry head. A method of least squares was applied to determine the position and displacement of the mechanical isocenter. Additionally, the displacement of the radiation isocenter was measured using a ball-bearing phantom and the electronic portal image device system. These measurements were based on 8 MV photon beams irradiated onto the ball from the four cardinal angles and two opposed collimator angles. The measurements and analysis of the data were carried out automatically using software delivered by the manufacturer. Results: The displacement of the mechanical isocenter caused by a 50 kg heavy {mu}MLC was found to be (-0.01 {+-} 0.05, -0.10 {+-} 0.03, -0.26 {+-} 0.05) mm in lateral, longitudinal, and vertical direction, respectively. Similarly, the displacement of the radiation isocenter was found to be (0.00 {+-} 0.03, -0.08 {+-} 0.06, -0.32 {+-} 0.02) mm. Good agreement was found between the displacement of the two isocenters. A displacement of the kV cone-beam CT beam center due to the attached weight of 50 kg could not be detected. Conclusions: General characteristics of the gantry arm excursions and displacements caused by an add-on {mu}MLC have been reported. A 50 kg heavy add-on {mu}MLC results in a isocenter displacement downward of 0.26-0.32 mm. The authors recommend that the beam center of the kV cone-beam CT image system should be matched to the isocenter related to the weight of the {mu}MLC. Consequently, the imperfections in isocenter localizations are transferred to the conventional radiotherapy where the clinical consequences of uncertainties in the submillimeter regime are negligible.

Riis, Hans L.; Zimmermann, Sune J.; Hjelm-Hansen, Mogens [Radiofysisk Laboratorium, Odense University Hospital, Sdr. Boulevard 29, DK-5000 Odense C (Denmark)

2013-03-15T23:59:59.000Z

211

RF power generation  

E-Print Network [OSTI]

This paper reviews the main types of r.f. power amplifiers which are, or may be, used for particle accelerators. It covers solid-state devices, tetrodes, inductive output tubes, klystrons, magnetrons, and gyrotrons with power outputs greater than 10 kW c.w. or 100 kW pulsed at frequencies from 50 MHz to 30 GHz. Factors affecting the satisfactory operation of amplifiers include cooling, matching and protection circuits are discussed. The paper concludes with a summary of the state of the art for the different technologies.

Carter, R G

2011-01-01T23:59:59.000Z

212

Power LCAT  

ScienceCinema (OSTI)

POWER LCAT is a software tool used to compare elements of efficiency, cost, and environmental effects between different sources of energy.

Drennen, Thomas

2014-06-27T23:59:59.000Z

213

Power LCAT  

SciTech Connect (OSTI)

POWER LCAT is a software tool used to compare elements of efficiency, cost, and environmental effects between different sources of energy.

Drennen, Thomas

2012-08-15T23:59:59.000Z

214

Comparing rig power transmission systems  

SciTech Connect (OSTI)

Installed power on drilling rigs has increased steadily since the inception of rotary drilling technology as a result of technical advances and the need to penetrate deeper horizons. Higher power levels for the pumps, rotary table and drawworks are also required for drilling deep wells within an economically reasonable period. Power initially available on a rig had been about 35 kW on average, whereas power values on modern rigs drilling ultra-deep wells are on the order of several thousand kW. The installed power values on modern drilling rigs, subdivided with respect to depth range, are shown. After safety, economic factors are of paramount importance to rig operators. Among these, which include low acquisition cost, long service life and ease of maintenance, a particularly decisive factor is high efficiency.

Gutsche, W.; Noevig, T.

1989-04-01T23:59:59.000Z

215

Energy efficient control for power management circuits operating from nano-watts to watts  

E-Print Network [OSTI]

Energy efficiency and form factor are the key driving forces in today's power electronics. All power delivery circuits, irrespective of the magnitude of power, basically consists of power trains, gate drivers and control ...

Bandyopadhyay, Saurav

2013-01-01T23:59:59.000Z

216

Factors Impacting Decommissioning Costs - 13576  

SciTech Connect (OSTI)

The Electric Power Research Institute (EPRI) studied United States experience with decommissioning cost estimates and the factors that impact the actual cost of decommissioning projects. This study gathered available estimated and actual decommissioning costs from eight nuclear power plants in the United States to understand the major components of decommissioning costs. Major costs categories for decommissioning a nuclear power plant are removal costs, radioactive waste costs, staffing costs, and other costs. The technical factors that impact the costs were analyzed based on the plants' decommissioning experiences. Detailed cost breakdowns by major projects and other cost categories from actual power plant decommissioning experiences will be presented. Such information will be useful in planning future decommissioning and designing new plants. (authors)

Kim, Karen; McGrath, Richard [Electric Power Research Institute, 3420 Hillview Ave., Palo Alto, California (United States)] [Electric Power Research Institute, 3420 Hillview Ave., Palo Alto, California (United States)

2013-07-01T23:59:59.000Z

217

The use of air injection to improve the double displacement processes  

SciTech Connect (OSTI)

The Double Displacement Process (DDP) has been defined as the gas displacement of a water invaded oil column. The purpose of injecting gas into a watered out oil reservoir is to recover more oil by creating a gas cap and thereby allowing gravity drainage of the liquids to occur. During 1994, Amoco Production Company, in partnership with the United States Department of Energy, will initiate the first project to combine air injection with the DDP. Due to the relatively low cost and potential for accelerated recovery, this unique IOR process may prove to be economically viable in low price environment. This report introduces the project by describing: (1) the initial project design, (2) core and fluid property tests, (3) details of the scoping reservoir models, (4) projected production performance and (5) safety considerations.

Fassihi, M.R.; Gillham, T.H. [Amoco Production Co., Houston, TX (United States)

1995-02-01T23:59:59.000Z

218

Physically scaled two-dimensional models of miscible displacement of residual oil  

SciTech Connect (OSTI)

The displacement of residual oil by miscible fluid injection, subsequent to waterflooding, has been studied using scaled physical models of line-drive systems. The effects of flow rate, mobility ratio, density gradients, and the geometry of the system were investigated. At a low ratio of viscous to gravity forces (low injection rates), the override of low density solvents was visually confirmed by using colored solvents. There is a difference in performance depending upon the fluid velocity. At low velocities, fingering is much more pronounced, breakthrough is earlier, and ultimate recovery somewhat less than when using higher velocities or adjusting the solvent viscosity so that a favorable solvent/water viscosity ratio is achieved. A low permeability decreases gravity override. Volumetric conformance is enhanced, and greater quantities of movable water are displaced ahead of the solvent.

Gharib, S.

1980-01-01T23:59:59.000Z

219

Deformability-based red blood cell separation in deterministic lateral displacement devices - a simulation study  

E-Print Network [OSTI]

We show, via three-dimensional immersed-boundary-finite-element-lattice-Boltzmann simulations, that deformability-based red blood cell (RBC) separation in deterministic lateral displacement (DLD) devices is possible. This is due to the deformability-dependent lateral extension of RBCs and enables us to predict a priori which RBCs will be displaced in a given DLD geometry. Several diseases affect the deformability of human cells. Malaria-infected RBCs or sickle cells, for example, tend to become stiffer than their healthy counterparts. It is therefore desirable to design microfluidic devices which can detect those diseases based on the cells' deformability fingerprint, rather than preparing samples using expensive and time-consuming biochemical preparation steps. Our findings should be helpful in the development of new methods for sorting cells and particles by deformability.

Timm Krueger; David Holmes; Peter V. Coveney

2014-06-07T23:59:59.000Z

220

Effect of connate water on miscible displacement of reservoir oil by flue gas  

E-Print Network [OSTI]

gas and water injection, have allowed the industry to greatly increase primary oil recovery. But the common weakness of gas and water as pressure maintenance and secondary recovery agents is im- miscibility with the reservoir fluid to be displaced... to using a hydrocarbon slug, Saxon, et al was one of the earliest investigators of carbon dioxide as a possible flooding 14 agent. Gatlin and Slobod reported on laboratory investigations of another possible miscible flooding agent, methyl alcohol. Each...

Maxwell, H. D.

1960-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

Spatial Periodic Forcing Can Displace Patterns It Is Intended to Control  

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

Spatial periodic forcing of pattern-forming systems is an important, but lightly studied, method of controlling patterns. It can be used to control the amplitude and wave number of one-dimensional periodic patterns, to stabilize unstable patterns, and to induce them below instability onset. We show that, although in one spatial dimension the forcing acts to reinforce the patterns, in two dimensions it acts to destabilize or displace them by inducing two-dimensional rectangular and oblique patterns.

Mau, Yair; Hagberg, Aric; Meron, Ehud

2012-07-01T23:59:59.000Z

222

The Sun's displacement from the galactic plane from spectroscopic parallaxes of 2400 OB stars  

E-Print Network [OSTI]

The Sun's vertical displacement from the galactic plane is determined model-independently from 3457 spectroscopic-parallax distance estimates for 2397 OB stars within 1200 pc of the Sun. The result, 19.5 +/- 2.2 pc, agrees well with other recent determinations. The distribution of stellar z-values with galactic longitude shows a slight sinusoidal dependence with an amplitude of about 26 pc.

B. Cameron Reed

2005-07-28T23:59:59.000Z

223

Wind Power Outlook 2004  

SciTech Connect (OSTI)

The brochure, expected to be updated annually, provides the American Wind Energy Association's (AWAE's) up-to-date assessment of the wind industry. It provides a summary of the state of wind power in the U.S., including the challenges and opportunities facing the industry. It provides summary information on the growth of the industry, policy-related factors such as the federal wind energy production tax credit status, comparisons with natural gas, and public views on wind energy.

anon.

2004-01-01T23:59:59.000Z

224

Simulation of neutron displacement damage in bipolar junction transistors using high-energy heavy ion beams.  

SciTech Connect (OSTI)

Electronic components such as bipolar junction transistors (BJTs) are damaged when they are exposed to radiation and, as a result, their performance can significantly degrade. In certain environments the radiation consists of short, high flux pulses of neutrons. Electronics components have traditionally been tested against short neutron pulses in pulsed nuclear reactors. These reactors are becoming less and less available; many of them were shut down permanently in the past few years. Therefore, new methods using radiation sources other than pulsed nuclear reactors needed to be developed. Neutrons affect semiconductors such as Si by causing atomic displacements of Si atoms. The recoiled Si atom creates a collision cascade which leads to displacements in Si. Since heavy ions create similar cascades in Si we can use them to create similar damage to what neutrons create. This LDRD successfully developed a new technique using easily available particle accelerators to provide an alternative to pulsed nuclear reactors to study the displacement damage and subsequent transient annealing that occurs in various transistor devices and potentially qualify them against radiation effects caused by pulsed neutrons.

Doyle, Barney Lee; Buller, Daniel L.; Hjalmarson, Harold Paul; Fleming, Robert M; Bielejec, Edward Salvador; Vizkelethy, Gyorgy

2006-12-01T23:59:59.000Z

225

Structure and properties of composites synthesized in situ using solid state displacement reactions  

SciTech Connect (OSTI)

Solid state displacement reactions can produce in situ intermetallic and ceramic matrix composites in a process where an intermetallic or ceramic phase(s) and a potential reinforcing phase(s) are grown together during a solid state reaction. Interpenetrating and dispersed microstructures, important for desirable composite properties, have been produced by means of displacement reaction processing techniques. Two such composites have been synthesized which exhibit two distinct microstructures: MoSi{sub 2} reinforced with SiC particles, which exhibits a dispersed-phase structure, and NiAl/Ni{sub 3}Al reinforced with Al{sub 2}O{sub 3}, which exhibits an interpenetrating-phase structure. Strength in bending and chevron-notch fracture toughness have been determined as a function of temperature, and measured properties compare favorably with composites produced by other means. The measured properties are discussed with regard to the observed microstructures. The potential for displacement reaction processing is assessed, and it appears to be a cost-effective synthesis method compared to others.

Henager, C.H. Jr.; Brimhall, J.L.

1993-10-01T23:59:59.000Z

226

Defect structures induced by high-energy displacement cascades in c uranium  

SciTech Connect (OSTI)

Displacement cascade simulations were conducted for the c uranium system based on molecular dynamics. A recently developed modified embedded atom method (MEAM) potential was employed to replicate the atomic interactions while an embedded atom method (EAM) potential was adopted to help characterize the defect structures induced by the displacement cascades. The atomic displacement process was studied by providing primary knock-on atoms (PKAs) with kinetic energies from 1 keV to 50 keV. The influence of the PKA incident direction was examined. The defect structures were analyzed after the systems were fully relaxed. The states of the self-interstitial atoms (SIAs) were categorized into various types of dumbbells, the crowdion, and the octahedral interstitial. The voids were determined to have a polyhedral shape with {110} facets. The size distribution of the voids was also obtained. The results of this study not only expand the knowledge of the microstructural evolution in irradiated c uranium, but also provide valuable references for the radiation-induced defects in uranium alloy fuels. 2014 Elsevier

Yinbin Miao; Benjamin Beeler; Chaitanya Deo; Maria A. Okuniewski; James F. Stubbins

2015-01-01T23:59:59.000Z

227

A new method to simulate the effects of viscous fingering on miscible displacement processes in porous media  

SciTech Connect (OSTI)

Dispersion and viscous fingering are important parameters in miscible displacement. Effects of dispersion on concentration profiles in porous media can be simulated when the viscosity ratio is favorable. The capability to simulate viscous fingering is limited. This paper presents a new method to simulate effects of viscous fingering on miscible displacement processes in porous media. The method is based on the numerical solution of a general form of the convection-dispersion equation. In this equation the convection term is represented by a fractional flow function. The fractional flow function is derived from Darcy's law by using a concentration-dependent average viscosity and relative flow area to each fluid at any point in the bed. The method was extended to the description of a polymer flood by including retention and inaccessible PV. A Langmuir-type model for polymer retention in the rock was used. The resulting convection-dispersion equation for displacement by polymer was solved numerically by the use of a finite-element method with linear basis functions and Crank-Nicholson derivative approximation. History matches were performed on four sets of laboratory data to verify the model: (1) an unfavorable viscosity ratio displacement, (2) stable displacement of glycerol by polymer solution, (3) unstable displacement of brine by a slug of polymer solution, and (4) a favorable viscosity ratio displacement. In general, computed results from the model matched laboratory data closely. Good agreement of the model with experiments over a significant range of variables lends support to the analysis.

Vossoughi, S.; Green, D.W.; Smith, J.E.; Wilhite, G.P.

1984-02-01T23:59:59.000Z

228

Reactive power compensator  

DOE Patents [OSTI]

A system and method for determining and providing reactive power compensation for an inductive load. A reactive power compensator (50,50') monitors the voltage and current flowing through each of three distribution lines (52a, 52b, 52c), which are supplying three-phase power to one or more inductive loads. Using signals indicative of the current on each of these lines when the voltage waveform on the line crosses zero, the reactive power compensator determines a reactive power compensator capacitance that must be connected to the lines to maintain a desired VAR level, power factor, or line voltage. Alternatively, an operator can manually select a specific capacitance for connection to each line, or the capacitance can be selected based on a time schedule. The reactive power compensator produces control signals, which are coupled through optical fibers (102/106) to a switch driver (110, 110') to select specific compensation capacitors (112) for connections to each line. The switch driver develops triggering signals that are supplied to a plurality of series-connected solid state switches (350), which control charge current in one direction in respect to ground for each compensation capacitor. During each cycle, current flows from ground to charge the capacitors as the voltage on the line begins to go negative from its positive peak value. The triggering signals are applied to gate the solid state switches into a conducting state when the potential on the lines and on the capacitors reaches a negative peak value, thereby minimizing both the potential difference and across the charge current through the switches when they begin to conduct. Any harmonic distortion on the potential and current carried by the lines is filtered out from the current and potential signals used by the reactive power compensator so that it does not affect the determination of the required reactive compensation.

El-Sharkawi, Mohamed A. (Renton, WA); Venkata, Subrahmanyam S. (Woodinville, WA); Chen, Mingliang (Kirkland, WA); Andexler, George (Everett, WA); Huang, Tony (Seattle, WA)

1992-01-01T23:59:59.000Z

229

Reactive Power Compensator.  

DOE Patents [OSTI]

A system and method for determining and providing reactive power compensation for an inductive load. A reactive power compensator (50,50') monitors the voltage and current flowing through each of three distribution lines (52a, 52b, 52c), which are supplying three-phase power to one or more inductive loads. Using signals indicative of the current on each of these lines when the voltage waveform on the line crosses zero, the reactive power compensator determines a reactive power compensator capacitance that must be connected to the lines to maintain a desired VAR level, power factor, or line voltage. Alternatively, an operator can manually select a specific capacitance for connection to each line, or the capacitance can be selected based on a time schedule. The reactive power compensator produces control signals, which are coupled through optical fibers (102/106) to a switch driver (110, 110') to select specific compensation capacitors (112) for connections to each line. The switch driver develops triggering signals that are supplied to a plurality of series-connected solid state switches (350), which control charge current in one direction in respect to ground for each compensation capacitor. During each cycle, current flows from ground to charge the capacitors as the voltage on the line begins to go negative from its positive peak value. The triggering signals are applied to gate the solid state switches into a conducting state when the potential on the lines and on the capacitors reaches a negative peak value, thereby minimizing both the potential difference and across the charge current through the switches when they begin to conduct. Any harmonic distortion on the potential and current carried by the lines is filtered out from the current and potential signals used by the reactive power compensator so that it does not affect the determination of the required reactive compensation. 26 figs.

El-Sharkawi, M.A.; Venkata, S.S.; Chen, M.; Andexler, G.; Huang, T.

1992-07-28T23:59:59.000Z

230

Power Recovery  

E-Print Network [OSTI]

.POWER RECOVERY Fletcher Mlirray Monsanto Chemical Company AB5'-:::0 p.p., will ??vi.w 'h. '.ohnnln,y nf 'h.::v,n. T:X:~~T ~ methods for estimating the power recovery potential from fluid streams. The ideal gas law formula for expanding gases.... Gas Law Estimation Power recovery estimates from a vapor stream can be made using the formula: which is derived from the Ideal Gas Law. At first glance the. formula seems imposing and perhaps difficult to occasionally use. If however; the formula...

Murray, F.

231

Kinetics and mechanism of an adsorptive displacement on polyoxotungstate modified electrodes  

SciTech Connect (OSTI)

An electrochemical approach was used to switch adsorbate monolayers on a mercury surface between two competing adsorbates. The principle is that the adsorption strength of silicotungstic acid (SiW[sub 12]) is stronger than that of the oxidized form of 2,6-disulfonated anthraquinone (2,6-AQDS) but weaker than that of the reduced form of 2,6-AQDS. The identity of the molecules adsorbed on the electrode surface in contact with a solution of 2,6-AQDS and SiW[sub 12] can be selected by the redox state of 2,6-AQDS. This constitutes a model system for the study of intrinsic adsorption displacement kinetics and mechanism. In the fully reduced state of 2,6-AQDS there is preferential adsorption of 2,6-AQDS over SiW[sub 12]. On switching the electrode potentials from fully reduced to fully oxidized states of 2,6-AQDS, the reduced 2,6-AQDS molecules are reoxidized and displaced from the surface by SiW[sub 12] molecules. Linear sweep voltammetry was used to probe the amount of 2,6-AQDS remaining on the surface. The displacement rate of 2,6-AQDS was obtained from repetitive probing at different times following the potential switching. The displacement rate follows first order kinetics with respect to dissolved 2,6-AQDS and second order kinetics with respect to dissolved SiW[sub 12]. The rate equation suggests two parallel displacement mechanisms: sequential desorption followed by adsorption and concerted adsorption and desorption. The basic electrochemical behavior of SiW[sub 12] in solution and on the surface is described. The effect of anodic dissolution of a Pt counter electrode on the electrochemical performance of the working electrode is discussed. In an acidic solution a sufficiently negative potential on a carbon working electrode can induce a positive potential at which the Pt counter electrode corrodes. The dissolved Pt species can be deposited on the working electrode. The Pt metal is dispersed and accounts for the high electrocatalytic activity of the carbon surface.

Lu, W.

1992-01-01T23:59:59.000Z

232

Power combiner  

DOE Patents [OSTI]

A power combiner for the combining of symmetric and asymmetric traveling wave energy comprises a feed waveguide having an input port and a launching port, a reflector for reflecting launched wave energy, and a final waveguide for the collection and transport of launched wave energy. The power combiner has a launching port for symmetrical waves which comprises a cylindrical section coaxial to the feed waveguide, and a launching port for asymmetric waves which comprises a sawtooth rotated about a central axis.

Arnold, Mobius; Ives, Robert Lawrence

2006-09-05T23:59:59.000Z

233

Purcell factor of Mie resonators featuring electric and magnetic modes  

E-Print Network [OSTI]

We present a modal approach to compute the Purcell factor in Mie resonators exhibiting both electric and magnetic resonances. The analytic expressions of the normal modes are used to calculate the effective volumes. We show that important features of the effective volume can be predicted thanks to the translation-addition coefficients of a displaced dipole. Using our formalism, it is easy to see that, in general, the Purcell factor of Mie resonators is not dominated by a single mode, but rather by a large superposition. Finally we consider a silicon resonator homogeneously doped with electric dipolar emitters, and we show that the average electric Purcell factor dominates over the magnetic one.

Zambrana-Puyalto, Xavier

2015-01-01T23:59:59.000Z

234

U.S. Solar Power Market  

SciTech Connect (OSTI)

The report provides an overview of the domestic market for solar, including a concise look at the steps being taken to grow solar power in the U.S. Topics covered include: an overview of solar power including its history, the current market environment, and its future prospects; an analysis of the key business factors that are driving interest in solar power; a description of solar power technologies; a review of the economics of solar power; a discussion of the key markets for solar power; and, profiles of domestic solar cell/module manufacturers.

NONE

2007-08-15T23:59:59.000Z

235

Numerical Modeling of Fracture Permeability Change in Naturally Fractured Reservoirs Using a Fully Coupled Displacement Discontinuity Method.  

E-Print Network [OSTI]

finite difference method to solve the fluid flow in fractures, a fully coupled displacement discontinuity method to build the global relation of fracture deformation, and the Barton-Bandis model of fracture deformation to build the local relation...

Tao, Qingfeng

2010-07-14T23:59:59.000Z

236

Tejiendo una red de resiliencia = weaving a web of resilience : Internal displacement, social networks and urban integration in Cartagena, Colombia  

E-Print Network [OSTI]

There are over 28.8 million internally displaced persons (IDPs) in the world today because of conflict, human rights violations and situations of generalized violence. Colombia's protracted internal armed conflict, which ...

Pollock, Jody (Jody Tamar)

2013-01-01T23:59:59.000Z

237

Energy and first costs analysis of displacement and mixing ventilation systems for U.S. buildings and climates  

E-Print Network [OSTI]

In the past two decades, displacement ventilation has been increasingly used in Scandinavia and Western Europe to improve indoor air quality and to save energy. By using a detailed computer simulation method, this study ...

Hu, ShiPing, 1970-

1999-01-01T23:59:59.000Z

238

Cleco Power- Power Miser New Home Program  

Broader source: Energy.gov [DOE]

Louisiana's Cleco Power offers energy efficiency incentives to eligible customers. Cleco Power offers a rate discount for residential customers building homes that meet the Power Miser Program...

239

Structure of the eastern Red Rocks and Wind Ridge thrust faults, Wyoming: how a thrust fault gains displacement along strike  

E-Print Network [OSTI]

STRUCTURE OF THE EASTERN RED ROCKS AND WIND RIDGE THRUST FAULTS, WYOMING: HOW A THRUST FAULT GAINS DISPLACEMENT ALONG STRIKE A Thesis by BRENT STANLEY HUNTSMAN Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1983 Major Subject: Geology STRUCTURE OF THE EASTERN RED ROCKS AND WIND RIDGE THRUST FAULTS, WYOMING: HOW A THRUST FAULT GAINS DISPLACEMENT ALONG STRIKE A Thesis by BRENT STANLEY HUNTSMAN...

Huntsman, Brent Stanley

1983-01-01T23:59:59.000Z

240

Update of distillers grains displacement ratios for corn ethanol life-cycle analysis.  

SciTech Connect (OSTI)

Production of corn-based ethanol (either by wet milling or by dry milling) yields the following coproducts: distillers grains with solubles (DGS), corn gluten meal (CGM), corn gluten feed (CGF), and corn oil. Of these coproducts, all except corn oil can replace conventional animal feeds, such as corn, soybean meal, and urea. Displacement ratios of corn-ethanol coproducts including DGS, CGM, and CGF were last updated in 1998 at a workshop at Argonne National Laboratory on the basis of input from a group of experts on animal feeds, including Prof. Klopfenstein (University of Nebraska, Lincoln), Prof. Berger (University of Illinois, Urbana-Champaign), Mr. Madson (Rapheal Katzen International Associates, Inc.), and Prof. Trenkle (Iowa State University) (Wang 1999). Table 1 presents current dry milling coproduct displacement ratios being used in the GREET model. The current effort focuses on updating displacement ratios of dry milling corn-ethanol coproducts used in the animal feed industry. Because of the increased availability and use of these coproducts as animal feeds, more information is available on how these coproducts replace conventional animal feeds. To glean this information, it is also important to understand how industry selects feed. Because of the wide variety of available feeds, animal nutritionists use commercial software (such as Brill Formulation{trademark}) for feed formulation. The software recommends feed for the animal on the basis of the nutritional characteristics, availability, and price of various animal feeds, as well as on the nutritional requirements of the animal (Corn Refiners Association 2006). Therefore, feed formulation considers both the economic and the nutritional characteristics of feed products.

Arora, S.; Wu, M.; Wang, M.; Energy Systems

2011-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

Power inverters  

DOE Patents [OSTI]

Power inverters include a frame and a power module. The frame has a sidewall including an opening and defining a fluid passageway. The power module is coupled to the frame over the opening and includes a substrate, die, and an encasement. The substrate includes a first side, a second side, a center, an outer periphery, and an outer edge, and the first side of the substrate comprises a first outer layer including a metal material. The die are positioned in the substrate center and are coupled to the substrate first side. The encasement is molded over the outer periphery on the substrate first side, the substrate second side, and the substrate outer edge and around the die. The encasement, coupled to the substrate, forms a seal with the metal material. The second side of the substrate is positioned to directly contact a fluid flowing through the fluid passageway.

Miller, David H. (Redondo Beach, CA); Korich, Mark D. (Chino Hills, CA); Smith, Gregory S. (Woodland Hills, CA)

2011-11-15T23:59:59.000Z

242

Displacement of oil from reservoir rock using graded-viscosity water  

E-Print Network [OSTI]

of reservoir conditions. The objective of this paper was to investigate, in the dis- placement processes the effect on oil recovery of 1) A graded- viscosity bank as compared to that of a constant-viscosity bank. The two banks used had the same mass...- cosity. He compared his results with a constant-viscosity slug, having the same mass of polymer and found increased oil recov- eries from the graded-viscosity slug, in the displacement process. His concentration of polymer, however, were too high...

Al-Atigi, Yosef A

1974-01-01T23:59:59.000Z

243

A Model for Non-Linear Quantum Evolution based on Time Displaced Entanglement  

E-Print Network [OSTI]

We discuss a model for non-linear quantum evolution based on the idea of time displaced entanglement, produced by taking one member of an entangled pair on a round trip at relativistic speeds, thus inducing a time-shift between the pair. We show that decoherence of the entangled pair is predicted. For non-maximal entanglement this then implies the ability to induce a non-unitary, non-linear quantum evolution. Although exhibiting unusual characteristics, we show that these evolutions cannot be dismissed on the basis of entropic or causal arguments.

T. C. Ralph

2006-10-12T23:59:59.000Z

244

Power Projects  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006PhotovoltaicSeptember 22,ReactorAbout Power > FinancialPower

245

Energy $ Savings From Power Capacitors  

E-Print Network [OSTI]

penalty or a reduction in the kVA demand, or a similar reduction in the power bill for improved power factor. In addition, some users will add power capacitors to improve voltage regulation or reduce the loading of heavily loaded transformers... (TL) of a transformer can be divided into no load loss (NL) and load loss (LL) where: TL .. NL + LL The no load loss is affected very little by the addition of capacitors. The load loss varies as the square of the current or the square of the k...

Harder, J. E.

1982-01-01T23:59:59.000Z

246

Star Power  

SciTech Connect (OSTI)

The U.S. Department of Energy's Princeton Plasma Physics Laboratory has released ''Star Power,'' a new informational video that uses dramatic and beautiful images and thought-provoking interviews to highlight the importance of the Laboratory's research into magnetic fusion.

None

2014-10-17T23:59:59.000Z

247

Star Power  

ScienceCinema (OSTI)

The U.S. Department of Energy's Princeton Plasma Physics Laboratory has released ''Star Power,'' a new informational video that uses dramatic and beautiful images and thought-provoking interviews to highlight the importance of the Laboratory's research into magnetic fusion.

None

2014-11-18T23:59:59.000Z

248

Modeling gas displacement kinetics in coal with Maxwell-Stefan diffusion theory  

SciTech Connect (OSTI)

The kinetics of binary gas counter-diffusion and Darcy flow in a large coal sample were modeled, and the results compared with data from experimental laboratory investigations. The study aimed for a better understanding of the CO{sub 2}-sequestration enhanced coalbed methane (ECBM) recovery process. The transport model used was based on the bidisperse diffusion mechanism and Maxwell-Stefan (MS) diffusion theory. This provides an alternative approach to simulate multicomponent gas diffusion and flow in bulk coals. A series of high-stress core flush tests were performed on a large coal sample sourced from a Bowen Basin coal mine in Queensland, Australia to investigate the kinetics of one gas displacing another. These experimental results were used to derive gas diffusivities, and to examine the predictive capability of the diffusion model. The simulations show good agreements with the displacement experiments revealing that MS diffusion theory is superior for describing diffusion of mixed gases in coals compared with the constant Fick diffusivity model. The optimized effective micropore and macropore diffusivities are comparable with experimental measurements achieved by other researchers.

Wei, X.R.; Wang, G.X.; Massarotto, P.; Rudolph, V.; Golding, S.D. [University of Queensland, Brisbane, Qld. (Australia). Division of Chemical Engineering

2007-12-15T23:59:59.000Z

249

Boundary displacement measurements using multi-energy soft x-rays  

SciTech Connect (OSTI)

The Multi-Energy Soft X-ray (ME-SXR) system on NSTX provides radial profiles of soft X-ray emission, measured through a set of filters with varying thickness, which have been used to reconstruct the electron temperature on fast time scales (?10?kHz). In addition to this functionality, here we show that the ME-SXR system can be used to measure the boundary displacement of the NSTX plasma with a few mm spatial resolution during magnetohydrodyamic (MHD) activity. Boundary displacement measurements can serve to inform theoretical predictions of neoclassical toroidal viscosity, and will be used to investigate other edge phenomena on NSTX-U. For example, boundary measurements using filtered SXR measurements can provide information on pedestal steepness and dynamic evolution leading up to and during edge localized modes (ELMs). Future applications include an assessment of a simplified, filtered SXR edge detection system as well as its suitability for real-time non-magnetic boundary feedback for ELMs, MHD, and equilibrium position control.

Tritz, K., E-mail: ktritz@pppl.gov; Stutman, D. [Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218 (United States); Diallo, A.; LeBlanc, B. P. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States); Sabbagh, S. [Department of Applied Physics and Mathematics, Columbia University, New York City, New York 10027 (United States)

2014-11-15T23:59:59.000Z

250

Auction Basics for Wholesale Power Markets: Objectives and Pricing Rules  

E-Print Network [OSTI]

1 Auction Basics for Wholesale Power Markets: Objectives and Pricing Rules Leigh Tesfatsion, Member to U.S. restructured wholesale power markets, i.e., centrally-administered wholesale power markets and illustrated. Complicating factors specific to wholesale power markets are clarified, and recent advances

Tesfatsion, Leigh

251

Power superconducting power transmission cable  

DOE Patents [OSTI]

The present invention is for a compact superconducting power transmission cable operating at distribution level voltages. The superconducting cable is a conductor with a number of tapes assembled into a subconductor. These conductors are then mounted co-planarly in an elongated dielectric to produce a 3-phase cable. The arrangement increases the magnetic field parallel to the tapes thereby reducing ac losses.

Ashworth, Stephen P. (Cambridge, GB)

2003-01-01T23:59:59.000Z

252

Method and system for advancement of a borehole using a high power laser  

DOE Patents [OSTI]

There is provided a system, apparatus and methods for the laser drilling of a borehole in the earth. There is further provided with in the systems a means for delivering high power laser energy down a deep borehole, while maintaining the high power to advance such boreholes deep into the earth and at highly efficient advancement rates, a laser bottom hole assembly, and fluid directing techniques and assemblies for removing the displaced material from the borehole.

Moxley, Joel F.; Land, Mark S.; Rinzler, Charles C.; Faircloth, Brian O.; Zediker, Mark S.

2014-09-09T23:59:59.000Z

253

Control scheme for power modulation of a free piston Stirling engine  

DOE Patents [OSTI]

The present invention relates to a control scheme for power modulation of a free-piston Stirling engine-linear alternator power generator system. The present invention includes connecting an autotransformer in series with a tuning capacitance between a linear alternator and a utility grid to maintain a constant displacement to piston stroke ratio and their relative phase angle over a wide range of operating conditions.

Dhar, Manmohan (Schenectady, NY)

1989-01-01T23:59:59.000Z

254

HEART SMART NUTRITION KNOWLEDGE = POWER  

E-Print Network [OSTI]

Lesson 1 HEART SMART NUTRITION KNOWLEDGE = POWER Know Your Cholesterol Number High blood cholesterol is one of the three major risk factors for heart disease that you can change. The other two risk the disease. Heart disease is the number one killer of women and men in the United States. In 2008, over 16

255

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

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

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...

256

Silicon Valley Power and Oklahoma Municipal Power Authority Win...  

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

Silicon Valley Power and Oklahoma Municipal Power Authority Win 2014 Public Power Wind Awards Silicon Valley Power and Oklahoma Municipal Power Authority Win 2014 Public Power Wind...

257

Maryland Nuclear Profile - Calvert Cliffs Nuclear Power Plant  

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

Calvert Cliffs Nuclear Power Plant" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License...

258

New York Nuclear Profile - R E Ginna Nuclear Power Plant  

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

R E Ginna Nuclear Power Plant" "Unit","Summer Capacity (MW)","Net Generation (Thousand MWh)","Summer Capacity Factor (Percent)","Type","Commercial Operation Date","License...

259

March 2014 Most Viewed Documents for Power Generation And Distribution...  

Office of Scientific and Technical Information (OSTI)

materials (CLSM), reported by ACI Committee 229 Rajendran, N. (1997) 15 > Industrial Power Factor Analysis Guidebook. Electrotek Concepts. (1995) 15 > WABASH RIVER COAL...

260

New Advanced System Utilizes Industrial Waste Heat to Power Water...  

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

Water Reuse ADVANCED MANUFACTURING OFFICE New Advanced System Utilizes Industrial Waste Heat to Power Water Purification Introduction As population growth and associated factors...

Note: This page contains sample records for the topic "displacement power factor" 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

Importance of protamine phosphorylation to histone displacement in spermatids: can the disruption of this process be used for male contraception  

SciTech Connect (OSTI)

Protamine is a small protein that packages DNA in the sperm of most vertebrates. Shortly after its synthesis, the serine and threonine residues in each protamine are phosphorylated and the modified proteins are deposited onto DNA, displacing the histones and other chromatin proteins. We have hypothesized that the phosphorylation of protamine 1 induces protamine dimerization and these dimers are required for efficient histone displacement. Histone displacement by protamines in late-step spermatids appears to be essential for the production of fertile sperm in man and other mammals, and the disruption of this process could provide a new approach for male contraception. As a first step towards testing this theory, we have initiated a set of in vitro experiments to determine whether of not protamine phosphorylation is essential for histone displacement. Thee results of these experiments, although incomplete, confirm that unphosphorylated protamine cannot effectively displace histone from DNA. Polyarginine molecules twice the size of a protamine molecule and salmine dimer were found to be more effective. These results are consistent with the theory that the disruption of protamine phosphorylation may prove to be a useful new approach for male contraception if it can be shown to facilitate or induce protamine dimerization.

Balhorn, R.; Hud, N.V.; Corzett, M.; Mazrimas, J.

1995-06-01T23:59:59.000Z

262

Status and Trend of Automotive Power Packaging  

SciTech Connect (OSTI)

Comprehensive requirements in aspects of cost, reliability, efficiency, form factor, weight, and volume for power electronics modules in modern electric drive vehicles have driven the development of automotive power packaging technology intensively. Innovation in materials, interconnections, and processing techniques is leading to enormous improvements in power modules. In this paper, the technical development of and trends in power module packaging are evaluated by examining technical details with examples of industrial products. The issues and development directions for future automotive power module packaging are also discussed.

Liang, Zhenxian [ORNL

2012-01-01T23:59:59.000Z

263

Clean Power at Home  

E-Print Network [OSTI]

this report is to describe and analyze net metering as a mechanism to support the deployment of small-scale, distributed electricity technologies in British Columbia based on renewable energy sources. These are referred to as "distributed renewables" throughout the report. The deployment of distributed renewables offers several environmental, economic, and social benefits that are described in this paper. Net metering enables individual utility customers to connect on-site generation to the utility grid, feeding excess power back to the grid when it is not needed, and utilizing grid power when consumption exceeds local renewable energy supply. In most programs, a single meter measures the customer's net consumption of grid power in a billing period, and they are charged for that consumption under regular retail rates. If production exceeds consumption, the customer's bill is essentially zero. In some instances, utilities may refund customers for excess production in a billing period based on wholesale market prices or avoided production costs. Net metering programs can make self-generation more attractive for customers by eliminating the need to size systems to meet customers' exact power needs or install on-site storage and power conditioning devices. Utilities may, depending upon the type of systems installed, benefit from improvements in local area load factors, and receive credit for various social or environmental benefits of such resources (e.g., greenhouse gas reductions). However, utilities have raised concerns about worker safety (e.g., the possibility that net metering sites may continue to feed electricity into the local distribution grid when the rest of the network is down, putting line workers at risk) and possible financial cross-subsidies from other rate...

May Author Andrew; Andrew E. Pape

264

Computation of mode II linear elastic stress intensity factor using the p-version of the finite element method  

SciTech Connect (OSTI)

It has been proven that the p-version of the finite element method results in a higher accuracy for a given mesh compared to the h-version of the finite element method. This investigation demonstrates the accuracy of the displacement and stress field methods in the vicinity of the crack tip using the p-version of the finite element method to compute the linear elastic stress intensity factor. The stress intensity factor for mode II is computed for an edge crack panel using stress and displacement methods and is compared to the analytical solution.

Orth, N.J.; Sansguiri, A.M. [Lamar Univ., Beaumont, TX (United States). Dept. of Mechanical Engineering; Orth, F.J. [Edison Welding Inst., Columbus, OH (United States). Structural Integrity Section

1995-08-01T23:59:59.000Z

265

Wind power and Wind power and  

E-Print Network [OSTI]

Wind power and the CDM #12; Wind power and the CDM Emerging practices in developing wind power 2005 Jyoti P. Painuly, Niels-Erik Clausen, Jørgen Fenhann, Sami Kamel and Romeo Pacudan #12; WIND POWER AND THE CDM Emerging practices in developing wind power projects for the Clean Development Mechanism Energy

266

Modelling Viscoelastic Behaviour of Polymer by A Mixed Velocity, Displacement Formulation - Numerical and Experimental Results  

SciTech Connect (OSTI)

The objective of this work is to model the viscoelastic behaviour of polymer from the solid state to the liquid state. With this objective, we perform experimental tensile tests and compare with simulation results. The chosen polymer is a PMMA whose behaviour depends on its temperature. The computation simulation is based on Navier-Stokes equations where we propose a mixed finite element method with an interpolation P1+/P1 using displacement (or velocity) and pressure as principal variables. The implemented technique uses a mesh composed of triangles (2D) or tetrahedra (3D). The goal of this approach is to model the viscoelastic behaviour of polymers through a fluid-structure coupling technique with a multiphase approach.

Pham, VT.; Silva, L.; Digonnet, H.; Combeaud, C.; Billon, N.; Coupez, T. [Centre for Material Forming (CEMEF), MINES ParisTech, Rue Claude Daunesse, Sophia Antipolis cedex (France)

2011-05-04T23:59:59.000Z

267

Coulomb displacement energies as a probe for nucleon pairing in the $f_{7/2}$ shell  

E-Print Network [OSTI]

Coulomb displacement energies of $T=1/2$ mirror nuclei have been studied via a series of high-precision $Q_\\mathrm{EC}$-value measurements with the double Penning trap mass spectrometer JYFLTRAP. Most recently, the $Q_\\mathrm{EC}$ values of the $f_{7/2}$-shell mirror nuclei $^{45}$V ($Q_\\mathrm{EC}=7123.82(22)$ keV) and $^{49}$Mn ($Q_\\mathrm{EC}=7712.42(24)$ keV) have been measured with an unprecedented precision. The data reveal a 16-keV ($1.6\\sigma$) offset in the adopted Atomic Mass Evaluation 2012 value of $^{49}$Mn suggesting the need for further measurements to verify the breakdown of the quadratic form of the isobaric multiplet mass equation. Precisely measured $Q_\\mathrm{EC}$ values confirm that the pairing effect in the Coulomb energies is quenched when entering the $f_{7/2}$ shell and reaches a minimum in the midshell.

A. Kankainen; T. Eronen; D. Gorelov; J. Hakala; A. Jokinen; V. S. Kolhinen; M. Reponen; J. Rissanen; A. Saastamoinen; V. Sonnenschein; J. yst

2014-03-17T23:59:59.000Z

268

Clip gage attachment for frictionless measurement of displacement during high-temperature mechanical testing  

DOE Patents [OSTI]

An attachment for placement between a test specimen and a remote clip gage extensometer providing improved fracture toughness tests of materials at elevated temperature. Using a cylindrical tube and axial rod in new relationship, the device transfers the displacement signal of the fracture toughness test specimen directly to a clip gage extensometer located outside the high temperature furnace. Virtually frictionless operation is assured by having the test specimen center one end of the rod in one end of the tube, while the clip gage extensometer arms center the other end of the rod in the other end of the tube. By providing positive control over both ends of both rod and tube, the attachment may be operated in orientations other than vertical.

Alexander, David J. (Oak Ridge, TN)

1994-01-01T23:59:59.000Z

269

Clip gage attachment for frictionless measurement of displacement during high-temperature mechanical testing  

DOE Patents [OSTI]

An attachment for placement between a test specimen and a remote clip gage extensometer providing improved fracture toughness tests of materials at elevated temperature is described. Using a cylindrical tube and axial rod in new relationship, the device transfers the displacement signal of the fracture toughness test specimen directly to a clip gage extensometer located outside the high temperature furnace. Virtually frictionless operation is assured by having the test specimen center one end of the rod in one end of the tube, while the clip gage extensometer arms center the other end of the rod in the other end of the tube. By providing positive control over both ends of both rod and tube, the attachment may be operated in orientations other than vertical. 1 figure.

Alexander, D.J.

1994-01-04T23:59:59.000Z

270

Study of degenerate parabolic system modeling the hydrogen displacement in a nuclear waste repository  

E-Print Network [OSTI]

Our goal is the mathematical analysis of a two phase (liquid and gas) two components (water and hydrogen) system modeling the hydrogen displacement in a storage site for radioactive waste. We suppose that the water is only in the liquid phase and is incompressible. The hydrogen in the gas phase is supposed compressible and could be dissolved into the water with the Henry's law. The flow is described by the conservation of the mass of each components. The model is treated without simplified assumptions on the gas density. This model is degenerated due to vanishing terms. We establish an existence result for the nonlinear degenerate parabolic system based on new energy estimate on pressures.

Caro, Florian; Saad, Mazen

2012-01-01T23:59:59.000Z

271

Measurement method for roll angular displacement with a high resolution by using diffraction gratings and a heterodyne interferometer  

SciTech Connect (OSTI)

The roll angle measurement is difficult to be achieved directly using a typical commercial interferometer due to its low sensitivity in axial direction, where the axial direction is orthogonal to the plane of the roll angular displacement. A roll angle measurement method combined diffraction gratings with a laser heterodyne interferometer is discussed in this paper. The diffraction grating placed in the plane of a roll angular displacement and the interferometer arranged in the plane's orthogonal direction, constitute the measurement pattern for the roll angle with high resolution. The roll angular displacement, considered as the linear, can be tested precisely when the corresponding angle is very small. Using the proposed method, the angle roll measurement obtains the high resolution of 0.002{sup ?}. Experiment has proved its feasibility and practicability.

Tang, Shanzhi, E-mail: shanzhit@gmail.com [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China) [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China); School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049 (China); Wang, Zhao [School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049 (China)] [School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049 (China); Gao, Jianmin; Guo, Junjie [State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054 (China)] [State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054 (China)

2014-04-15T23:59:59.000Z

272

Power Technologies Energy Data Book - Fourth Edition  

SciTech Connect (OSTI)

This report, prepared by NREL's Strategic Energy Analysis Center, includes up-to-date information on power technologies, including complete technology profiles. The data book also contains charts on electricity restructuring, power technology forecasts, electricity supply, electricity capability, electricity generation, electricity demand, prices, economic indicators, environmental indicators, and conversion factors.

Aabakken, J.

2006-08-01T23:59:59.000Z

273

Wind Power  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun DengWISPWind Industry Soars to New1Wind Power

274

FUTURE POWER GRID INITIATIVE Future Power Grid  

E-Print Network [OSTI]

FUTURE POWER GRID INITIATIVE Future Power Grid Control Paradigm OBJECTIVE This project integration & exploit the potential of distributed smart grid assets Significantly reduce the risk of advanced mathematical models, next- generation simulation and analytics capabilities for the power grid

275

Southwestern Power Administration  

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

Courses Instructors NERC Continuing Education Power Operations Training Center You'll find the "Power" of learning at Southwestern's Power Operations Training Center (POTC). POTC's...

276

ELECTROCHEMICAL POWER FOR TRANSPORTATION  

E-Print Network [OSTI]

and Battery-Electric Powered Special Purpose Vehicles, SAELead-Acid Powered Electric Vehicles, Fifth Internationalmeantime, battery-powered electric vehicles can be expected

Cairns, Elton J.

2012-01-01T23:59:59.000Z

277

Solar powered desalination system  

E-Print Network [OSTI]

2008, uses concentrated solar power to split water. Figurethe main reason the potential for solar power is boundless.a clean energy source, solar power is inexhaustible, fairly

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

278

Power management system  

DOE Patents [OSTI]

A method of managing power resources for an electrical system of a vehicle may include identifying enabled power sources from among a plurality of power sources in electrical communication with the electrical system and calculating a threshold power value for the enabled power sources. A total power load placed on the electrical system by one or more power consumers may be measured. If the total power load exceeds the threshold power value, then a determination may be made as to whether one or more additional power sources is available from among the plurality of power sources. At least one of the one or more additional power sources may be enabled, if available.

Algrain, Marcelo C. (Peoria, IL); Johnson, Kris W. (Washington, IL); Akasam, Sivaprasad (Peoria, IL); Hoff, Brian D. (East Peoria, IL)

2007-10-02T23:59:59.000Z

279

Power oscillator  

DOE Patents [OSTI]

An oscillator includes an amplifier having an input and an output, and an impedance transformation network connected between the input of the amplifier and the output of the amplifier, wherein the impedance transformation network is configured to provide suitable positive feedback from the output of the amplifier to the input of the amplifier to initiate and sustain an oscillating condition, and wherein the impedance transformation network is configured to protect the input of the amplifier from a destructive feedback signal. One example of the oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency. Various control circuits may be employed to match the driving frequency of the oscillator to a plurality of tuning states of the lamp.

Gitsevich, Aleksandr (Montgomery Village, MD)

2001-01-01T23:59:59.000Z

280

Wireless Power Transfer  

SciTech Connect (OSTI)

Wireless Power Transfer is an innovative approach using magnetic resonance coupling of air core transformers designed for today's growing plug-in electric vehicle market. This technology can provide a convenient, safe and flexible means to charge electric vehicles under stationary and dynamic conditions. Plug-in Electric Vehicles (PEV) are burdened by the need for cable and plug charger, galvanic isolation of the on-board electronics, bulk and cost of this charger and the large energy storage system (ESS) packs needed. With a system where you have to physically plug in there are a number of occasions where the owner could very well forget to charge the vehicle. For stationary applications (like charging of a PHEV at home), ORNL's innovative wireless power transfer technology adds a convenience factor compared to actually plugging in which will mean that the vehicle will have a full charge every morning. Electric vehicle charging must be safe, compact and efficient in order to be convenient for customers. By reconfiguring the transformer and altering the resonance frequency, energy is transferred to the battery with lower energy losses and with fewer demands on the primary circuit by the rest of the transformer system. The ORNL discovery shows that sufficient power for the battery can be transferred from the primary to secondary circuits without significant energy losses if the operating frequency is set at 50% to 95% of the resonance frequency of the circuit. The electrical power is then transmitted to the chargeable battery, which is electrically coupled to the secondary circuit through the air core transformer. Some advantages include: Reduced energy losses during transfer of energy to the battery; A charge potential that is relatively unaffected by up to 25% misalignment of vehicle; and Other receiving components draw less power from the primary circuit. These advantages allow wireless power technology applications to expand at the workplace and beyond as the demand for EV rises. For vehicles that operate over a fixed route such as busses and shuttle vehicles, Wireless Power Transfer (WPT) means that a smaller battery pack can be used. In the traditional system, the battery pack is designed to accommodate the needs of the entire route or shift. With WPT the battery can be downsized because it can be charged when the vehicle stops on its route (a rental car shuttle bus, for example, can charge when it waits in the terminal and again when it waits at the rental car place. Thus the battery only needs enough charge to get to the next stop. This decrease in battery size means significant cost savings to electrify the vehicle. This technology enables efficient "opportunity charging stations" for predefined routes and planned stops reducing down time. Charging can occur in minutes. This improvement also eliminates the harmful emissions that occur in garages while buses are at idle during charging. In larger cities, dynamic charging offers an even greater impact utilizing existing infrastructure. As vehicles travel along busy freeways and interstate systems, wireless charging can occur while the vehicle is in motion. With this technology a vehicle essentially has unlimited electric range while using a relatively small battery pack. In-motion charging stations use vehicle sensors to alert the driver. Traveling at normal speeds, sensors establish in-motion charging. WPT transmit pads sequentially energize to the negotiated power level based on vehicle speed and its requested charging energy. Lower power when vehicle speed is slow and much higher power for faster moving vehicles. Vehicle to Infrastructure communications (V2I) coordinates WPT charging level according to on-board battery pack state-of-charge. V2I activates the roadway transmit pads placing them in standby mode and negotiates charging fee based on prevailing grid rate and vehicle energy demand. Dynamic charging would allow electricity to supply a very large fraction of the energy for the transportation sector and reduce greatly petroleum consump

None

2013-07-22T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

Wireless Power Transfer  

ScienceCinema (OSTI)

Wireless Power Transfer is an innovative approach using magnetic resonance coupling of air core transformers designed for today's growing plug-in electric vehicle market. This technology can provide a convenient, safe and flexible means to charge electric vehicles under stationary and dynamic conditions. Plug-in Electric Vehicles (PEV) are burdened by the need for cable and plug charger, galvanic isolation of the on-board electronics, bulk and cost of this charger and the large energy storage system (ESS) packs needed. With a system where you have to physically plug in there are a number of occasions where the owner could very well forget to charge the vehicle. For stationary applications (like charging of a PHEV at home), ORNL's innovative wireless power transfer technology adds a convenience factor compared to actually plugging in which will mean that the vehicle will have a full charge every morning. Electric vehicle charging must be safe, compact and efficient in order to be convenient for customers. By reconfiguring the transformer and altering the resonance frequency, energy is transferred to the battery with lower energy losses and with fewer demands on the primary circuit by the rest of the transformer system. The ORNL discovery shows that sufficient power for the battery can be transferred from the primary to secondary circuits without significant energy losses if the operating frequency is set at 50% to 95% of the resonance frequency of the circuit. The electrical power is then transmitted to the chargeable battery, which is electrically coupled to the secondary circuit through the air core transformer. Some advantages include: Reduced energy losses during transfer of energy to the battery; A charge potential that is relatively unaffected by up to 25% misalignment of vehicle; and Other receiving components draw less power from the primary circuit. These advantages allow wireless power technology applications to expand at the workplace and beyond as the demand for EV rises. For vehicles that operate over a fixed route such as busses and shuttle vehicles, Wireless Power Transfer (WPT) means that a smaller battery pack can be used. In the traditional system, the battery pack is designed to accommodate the needs of the entire route or shift. With WPT the battery can be downsized because it can be charged when the vehicle stops on its route (a rental car shuttle bus, for example, can charge when it waits in the terminal and again when it waits at the rental car place. Thus the battery only needs enough charge to get to the next stop. This decrease in battery size means significant cost savings to electrify the vehicle. This technology enables efficient "opportunity charging stations" for predefined routes and planned stops reducing down time. Charging can occur in minutes. This improvement also eliminates the harmful emissions that occur in garages while buses are at idle during charging. In larger cities, dynamic charging offers an even greater impact utilizing existing infrastructure. As vehicles travel along busy freeways and interstate systems, wireless charging can occur while the vehicle is in motion. With this technology a vehicle essentially has unlimited electric range while using a relatively small battery pack. In-motion charging stations use vehicle sensors to alert the driver. Traveling at normal speeds, sensors establish in-motion charging. WPT transmit pads sequentially energize to the negotiated power level based on vehicle speed and its requested charging energy. Lower power when vehicle speed is slow and much higher power for faster moving vehicles. Vehicle to Infrastructure communications (V2I) coordinates WPT charging level according to on-board battery pack state-of-charge. V2I activates the roadway transmit pads placing them in standby mode and negotiates charging fee based on prevailing grid rate and vehicle energy demand. Dynamic charging would allow electricity to supply a very large fraction of the energy for the transportation sector and reduce greatly petroleum consump

None

2013-11-19T23:59:59.000Z

282

Solar powered desalination system  

E-Print Network [OSTI]

1.18: Largest PV Power Plants32 TableTable 1.18: Largest PV Power Plants 19 Power (MW) LocationWorld Canada, Sarnia PV power plant Sarnia (Ontario) Italy,

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

283

Geoid displacement about Greenland resulting from past and present-day mass changes in the Greenland Ice Sheet  

E-Print Network [OSTI]

Geoid displacement about Greenland resulting from past and present- day mass changes in the Greenland Ice Sheet K. Fleming, Z. Martinec, and J. Hagedoorn Geodesy and Remote Sensing, Geo-isostatic adjustment (GIA) following the Last Glacial Maximum and from present- day mass changes in the Greenland Ice

Cerveny, Vlastislav

284

North Carolina FY 2007-2008 Petroleum Displacement Program Report for the Joint Legislative Commission on Governmental Operations  

E-Print Network [OSTI]

.3 % was displaced through biodiesel use. 0.2 % was added through a decrease in CNG and propane use. 0 technology vehicles with new vehicle purchases of 61 electric vehicles, 12 hybrid-electric vehicles, 1,115 flex-fueled vehicles, and 110 diesel vehicles that can use biodiesel. Flex fuel vehicles now comprise

285

Validation of classical density-dependent solute transport theory for stable, high-concentration-gradient brine displacements in  

E-Print Network [OSTI]

-concentration-gradient brine displacements in coarse and medium sands S.J. Watson a,1 , D.A. Barry a,1 , R.J. Schotting b,*, S.M. Hassanizadeh b a School of Civil and Environmental Engineering, Contaminated Land Assessment and Remediation by a brine solution, under either constant head or constant volume flux conditions. The experimental data

Hassanizadeh, S. Majid

286

Anita Ghimire Social and Territorial Impacts of Armed Conflct Induced Displacement and Livelihood of IDPs in Nepal  

E-Print Network [OSTI]

of IDPs in Nepal 1 Social and Territorial Impacts of Armed Conflct Induced Displacement and Livelihood of IDPs in Nepal CHAPTER EIGHT CONCLUSION, LIMITATION AND PRACTICAL APPLICATION The phenomenon of conflict also affects the neighbouring countries- particularly in the case of states like Nepal, where a strong

Richner, Heinz

287

Prediction of the Tool Displacement by Coupled Models of the Compliant Industrial Robot and the Milling Process  

E-Print Network [OSTI]

Prediction of the Tool Displacement by Coupled Models of the Compliant Industrial Robot@sim.tu-darmstadt.de Abstract Using an industrial robot for machining parts provides a cost-saving and flexible alternative Interaction, Milling Process, Robot Structure 1 INTRODUCTION The major field of cutting applications

Stryk, Oskar von

288

Effect of Shear Displacement Rate on the Internal Shear Strength of GCLs J. S. McCartney1  

E-Print Network [OSTI]

shear strength of geosynthetic clay liners (GCLs) is to replicate behavior noted in the field. However a wider range of shear displacement rates. Introduction The internal shear strength of geosynthetic clay are prefabricated geocomposite materials used in hydraulic barriers as an alternative to compacted clay liners

Zornberg, Jorge G.

289

An Iterative Perturbation Method for the Pressure Equation in the Simulation of Miscible Displacement in Porous Media \\Lambda  

E-Print Network [OSTI]

which can enhance hydrocarbon recovery in the petroleum reservoir. This process involves the injection oil may have been left behind after primary production by reservoir pressure and secondary production by waterflooding. Since the tertiary process requires expensive chemicals and the performance of the displacement

Yang, Daoqi

290

Surface Self-Diffusion and Mean Displacement of Hydrogen on Graphite and a PEM Fuel Cell Catalyst Support  

E-Print Network [OSTI]

Surface Self-Diffusion and Mean Displacement of Hydrogen on Graphite and a PEM Fuel Cell Catalyst molecules and a carbon material commonly used in polymer electrolyte membrane fuel cells (PEMFC), called XC coefficient at each temperature. At 350 K, a typical fuel cell temperature, the temperature function

Kjelstrup, Signe

291

Quasi-static displacement calibration system for a Violin-Mode shadow-sensor intended for Gravitational Wave detector suspensions  

SciTech Connect (OSTI)

This paper describes the design of, and results from, a calibration system for optical linear displacement (shadow) sensors. The shadow sensors were designed to detect Violin-Mode (VM) resonances in the 0.4 mm diameter silica fibre suspensions of the test masses/mirrors of Advanced Laser Interferometer Gravitational Wave Observatory gravitational wave interferometers. Each sensor illuminated the fibre under test, so as to cast its narrow shadow onto a synthesized split photodiode detector, the shadow falling over adjacent edges of the paired photodiodes. The apparatus described here translated a vertically orientated silica test fibre horizontally through a collimated Near InfraRed illuminating beam, whilst simultaneously capturing the separate DC shadow notch outputs from each of the paired split photodiode detectors. As the ratio of AC to DC photocurrent sensitivities to displacement was known, a calibration of the DC response to quasi-static shadow displacement allowed the required AC sensitivity to vibrational displacement to be found. Special techniques are described for generating the required constant scan rate for the test fibre using a DC motor-driven stage, for removing jitter at such low translation rates from a linear magnetic encoder, and so for capturing the two shadow-notch signals at each micrometre of the test fibre's travel. Calibration, across the four detectors of this work, gave a vibrational responsivity in voltage terms of (9.45 1.20) MV (rms)/m, yielding a VM displacement sensitivity of (69 13) pm (rms)/?Hz, at 500 Hz, over the required measuring span of 0.1 mm.

Lockerbie, N. A.; Tokmakov, K. V. [SUPA (Scottish Universities Physics Alliance), Department of Physics, University of Strathclyde, 107 Rottenrow, Glasgow G4 0NG (United Kingdom)

2014-10-15T23:59:59.000Z

292

Expanded beam deflection method for simultaneous measurement of displacement and vibrations of multiple microcantilevers  

SciTech Connect (OSTI)

Here we present an extension of optical beam deflection (OBD) method for measuring displacement and vibrations of an array of microcantilevers. Instead of focusing on the cantilever, the optical beam is either focused above or below the cantilever array, or focused only in the axis parallel to the cantilevers length, allowing a wide optical line to span multiple cantilevers in the array. Each cantilever reflects a part of the incident beam, which is then directed onto a photodiode array detector in a manner allowing distinguishing between individual beams. Each part of reflected beam behaves like a single beam of roughly the same divergence angle in the bending sensing axis as the incident beam. Since sensitivity of the OBD method depends on the divergence angle of deflected beam, high sensitivity is preserved in proposed expanded beam deflection (EBD) method. At the detector, each spot's position is measured at the same time, without time multiplexing of light sources. This provides real simultaneous readout of entire array, unavailable in most of competitive methods, and thus increases time resolution of the measurement. Expanded beam can also span another line of cantilevers allowing monitoring of specially designed two-dimensional arrays. In this paper, we present first results of application of EBD method to cantilever sensors. We show how thermal noise resolution can be easily achieved and combined with thermal noise based resonance frequency measurement.

Nieradka, K.; MaloziePc, G.; Kopiec, D.; Gotszalk, T. [Faculty of Microsystem Electronics and Photonics, Wroclaw University of Technology, Janiszewskiego 11/17, Wroclaw 50-372 (Poland); Grabiec, P.; Janus, P.; Sierakowski, A. [Division of Silicon Microsystem and Nanostructure Technology, Institute of Electron Technology, Lotnikow 32/46, Warsaw 02-668 (Poland)

2011-10-15T23:59:59.000Z

293

Apparatus and method for suppressing vibration and displacement of a bellows  

DOE Patents [OSTI]

Flexible bellows are utilized between two systems, such as a pumping system and a process station, to partially absorb system vibrations and to compensate for misalignment between the systems. It is common practice to either clamp a rigid spacer between flanges of the two systems to separate them from each other, or to maintain the bellows in unsupported relationship between these systems. In the former bellows arrangement, the rigid spacer transmits vibratory energy between the two systems and the bellows tends to function as an undamped or underdamped unit that resonates at its own frequency to create additional vibratory energy, transmitted to the systems. In the latter, unsupported bellows arrangement, the pressure differential prevalent between the fluid flowing through the bellows and ambient normally causes extension or retraction of the bellows and resulting misalignment problems. The present invention substantially solves the above vibration and misalignment problems by providing an inflatable tube in surrounding relationship about a bellows to suppress vibration and displacement thereof. A method for isolating first and second systems from each other to prevent the transmission of vibratory energy therebetween comprises the steps of attaching at least one flexible bellows between the systems, surrounding the bellows with an inflatable tube, and maintaining a predetermined pressure in the tube to urge the tube in flexible contact with at least some of the convolutions of the bellows.

Kuklo, T.C.

1984-01-01T23:59:59.000Z

294

Process for the displacement of cyanide ions from metal-cyanide complexes  

DOE Patents [OSTI]

The present invention relates to water-soluble polymers and the use of such water-soluble polymers in a process for the displacement of the cyanide ions from the metal ions within metal-cyanide complexes. The process waste streams can include metal-cyanide containing electroplating waste streams, mining leach waste streams, mineral processing waste streams, and related metal-cyanide containing waste streams. The metal ions of interest are metals that give very strong complexes with cyanide, mostly iron, nickel, and copper. The physical separation of the water-soluble polymer-metal complex from the cyanide ions can be accomplished through the use of ultrafiltration. Once the metal-cyanide complex is disrupted, the freed cyanide ions can be recovered for reuse or destroyed using available oxidative processes rendering the cyanide nonhazardous. The metal ions are released from the polymer, using dilute acid, metal ion oxidation state adjustment, or competing chelating agents, and collected and recovered or disposed of by appropriate waste management techniques. The water-soluble polymer can then be recycled. Preferred water-soluble polymers include polyethyleneimine and polyethyleneimine having a catechol or hydroxamate group.

Smith, Barbara F. (Los Alamos, NM); Robinson, Thomas W. (Los Alamos, NM)

1997-01-01T23:59:59.000Z

295

Electrokinetically-driven deterministic lateral displacement for particle separation in microfluidic devices  

E-Print Network [OSTI]

An electrokinetically-driven deterministic lateral displacement (e-DLD) device is proposed for the continuous, two-dimensional fractionation of suspensions in microfluidic platforms. The suspended species are driven through an array of regularly spaced cylindrical posts by applying an electric field across the device. We explore the entire range of orientations of the driving field with respect to the array of obstacles and show that, at specific forcing-angles, particles of different size migrate in different directions, thus enabling continuous, two-dimensional separation. We discuss a number of features observed in the kinetics of the particles, including directional locking and sharp transitions between migration angles upon variations in the direction of the force, that are advantageous for high-resolution two-dimensional separation. A simple model based on individual particle-obstacle interactions accurately describes the migration angle of the particles depending on the orientation of the driving field, and can be used to re-configure driving field depending on the composition of the samples.

Srinivas Hanasoge; Raghavendra Devendra; Javier F. Diez; German Drazer

2014-05-18T23:59:59.000Z

296

Spin-on-doping for output power improvement of silicon nanowire array based thermoelectric power generators  

SciTech Connect (OSTI)

The output power of a silicon nanowire array (NWA)-bulk thermoelectric power generator (TEG) with Cu contacts is improved by spin-on-doping (SOD). The Si NWAs used in this work are fabricated via metal assisted chemical etching (MACE) of 0.010.02 ? cm resistivity n- and p-type bulk, converting ?4% of the bulk thickness into NWs. The MACE process is adapted to ensure crystalline NWs. Current-voltage and Seebeck voltage-temperature measurements show that while SOD mainly influences the contact resistance in bulk, it influences both contact resistance and power factor in NWA-bulk based TEGs. According to our experiments, using Si NWAs in combination with SOD increases the output power by an order of 3 under the same heating power due to an increased power factor, decreased thermal conductivity of the NWA and reduced Si-Cu contact resistance.

Xu, B., E-mail: bin.xu09@imperial.ac.uk; Fobelets, K. [Department of Electrical and Electronic Engineering, Imperial College London, Exhibition Road, SW7 2BT London (United Kingdom)

2014-06-07T23:59:59.000Z

297

CO{sub 2} Mitigation Using Atomic Power  

SciTech Connect (OSTI)

Atomic power must grow 4.6%/yr in order to displace fossil fuel by 2080 and arrest CO{sub 2} at twice pre-industrial level. World energy use grows 2%/yr and World economy grows 3%/yr. Light Water Reactor (LWR) generation is expanded to the limit of the uranium supply, using a once-through fuel cycle. LWR Spent fuel plutonium is used in breeder reactor first cores. Absent atomic power, rising coal consumption will cause CO{sub 2} to double by 2050, triple by 2075, and be times 4 by 2090. Each 1.0 GWe atomic power plant delays CO{sub 2} doubling 1 week. (author)

Schenewerk, William Ernest [Parsons, Pasadena, CA, 5060 San Rafael Ave., Los Angeles CA 90042-3239 (United States)

2002-07-01T23:59:59.000Z

298

A Tariff for Reactive Power - IEEE  

SciTech Connect (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

299

Photovoltaic solar system connected to the electric power grid operating as active power generator and reactive power compensator  

SciTech Connect (OSTI)

In the case of photovoltaic (PV) systems acting as distributed generation (DG) systems, the DC energy that is produced is fed to the grid through the power-conditioning unit (inverter). The majority of contemporary inverters used in DG systems are current source inverters (CSI) operating at unity power factor. If, however, we assume that voltage source inverters (VSI) can replace CSIs, we can generate reactive power proportionally to the remaining unused capacity at any given time. According to the theory of instantaneous power, the inverter reactive power can be regulated by changing the amplitude of its output voltage. In addition, the inverter active power can be adjusted by modifying the phase angle of its output voltage. Based on such theory, both the active power supply and the reactive power compensation (RPC) can be carried out simultaneously. When the insolation is weak or the PV modules are inoperative at night, the RPC feature of a PV system can still be used to improve the inverter utilisation factor. Some MATLAB simulation results are included here to show the feasibility of the method. (author)

Albuquerque, Fabio L.; Moraes, Adelio J.; Guimaraes, Geraldo C.; Sanhueza, Sergio M.R.; Vaz, Alexandre R. [Universidade Federal de Uberlandia, Uberlandia-MG, CEP 38400-902 (Brazil)

2010-07-15T23:59:59.000Z

300

The effect of the displacement damage on the Charge Collection Efficiency in Silicon Drift Detectors for the LOFT satellite  

E-Print Network [OSTI]

The technology of Silicon Drift Detectors (SDDs) has been selected for the two instruments aboard the Large Observatory For X-ray Timing (LOFT) space mission. LOFT underwent a three year long assessment phase as candidate for the M3 launch opportunity within the "Cosmic Vision 2015 -- 2025" long-term science plan of the European Space Agency. During the LOFT assessment phase, we studied the displacement damage produced in the SDDs by the protons trapped in the Earth's magnetosphere. In a previous paper we discussed the effects of the Non Ionising Energy Losses from protons on the SDD leakage current. In this paper we report the measurement of the variation of Charge Collection Efficiency produced by displacement damage caused by protons and the comparison with the expected damage in orbit.

Del Monte, E; Bozzo, E; Cadoux, F; Rachevski, A; Zampa, G; Zampa, N; Feroci, M; Pohl, M; Vacchi, A

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

LIFE Power Plant Fusion Power Associates  

E-Print Network [OSTI]

LIFE Power Plant Fusion Power Associates December 14, 2011 Mike Dunne LLNL #12;NIf-1111-23714.ppt LIFE power plant 2 #12;LIFE delivery timescale NIf-1111-23714.ppt 3 #12;Timely delivery is enabled dpa) Removes ion threat and mitigates x-ray threat allows simple steel piping No need

302

A numerical solution of the problem of pressure pulsations in the discharge lines of positive displacement pumps  

E-Print Network [OSTI]

pulsations and positive displacement pumps given by Mr. Samuel L. Collier of the Mission Manufacturing Company was very beneficial to the author and very much appreciated. The author would also like to thank Mr. Tucker Pennington of the Humble Oil... Distance measured from the end condition, L Inside diameter of the discharge line, L Diameter of the piston or plunger, L Diameter of the piston or plunger rod, L Instantaneous voltage Phasor voltage Modulus of elasticity, F/L 2 2 Acceleration due...

Patrick, Robert Droan

1963-01-01T23:59:59.000Z

303

Solar powered desalination system  

E-Print Network [OSTI]

of the electrical power output to the solar power input), aSolar Energy Calculator using Google Maps 23 Table 1.24: PV System Power Production Average Daily Irradiance (kWh/m2) Instillation Efficiency Labeled Efficiency Output

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

304

Quantification of Variability and Uncertainty in Hourly NOx Emissions from Coal-Fired Power Plants  

E-Print Network [OSTI]

to quantify variability and uncertainty for NOx emissions from coal-fired power plants. Data for hourly NOx emissions, heat rate, gross load and capacity factor of 32 units from 9 different power plants were analyzed Uncertainty, Variability, Emission Factors, Coal-Fired Power Plants, NOx emissions, Regression Models

Frey, H. Christopher

305

Concentrated Solar Thermoelectric Power  

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

CONCENTRATING SOLAR POWER PROGRAM REVIEW 2013 Concentrated Solar Thermoelectric Power Principal Investigator: Prof. Gang Chen Massachusetts Institute of Technology Cambridge, MA...

306

Power System Dispatcher  

Broader source: Energy.gov [DOE]

(See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Rocky Mountain Region Power System Operations, (J4800) Transmission Scheduling and...

307

Electrolytes for power sources  

DOE Patents [OSTI]

Electrolytes are disclosed for power sources, particularly alkaline and acidic power sources, comprising benzene polysulfonic acids and benzene polyphosphonic acids or salts of such acids. 7 figures.

Doddapaneni, N.; Ingersoll, D.

1995-01-03T23:59:59.000Z

308

TVA- Green Power Providers  

Broader source: Energy.gov [DOE]

Tennessee Valley Authority (TVA) and participating power distributors of TVA power offer a performance-based incentive program to homeowners and businesses for the installation of renewable...

309

Southwestern Power Administration  

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

POTC Home Courses Instructors NERC Continuing Education 2014 Power Operations Training Center Courses The 2014 Power Operations Training Center course schedule is currently being...

310

HOUSEHOLD SOLAR POWER SYSTEM.  

E-Print Network [OSTI]

?? Photovoltaic power has become one of the most popular research area in new energy field. In this report, the case of household solar power (more)

Jiang, He

2014-01-01T23:59:59.000Z

311

Concentrated Solar Power Generation.  

E-Print Network [OSTI]

??Solar power generation is the most promising technology to transfer energy consumption reliance from fossil fuel to renewable sources. Concentrated solar power generation is a (more)

Jin, Zhilei

2013-01-01T23:59:59.000Z

312

Solar powered desalination system  

E-Print Network [OSTI]

As a clean energy source, solar power is inexhaustible,renewables for energy sources, including solar power. Also,Requirements Energy Source Natural Gas Nuclear Solar Wind

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

313

Assessment of Combined Heat and Power Premium Power Applications...  

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

Assessment of Combined Heat and Power Premium Power Applications in California, September 2008 Assessment of Combined Heat and Power Premium Power Applications in California,...

314

Wind Powering America Webinar: Wind Power Economics: Past, Present...  

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

Wind Powering America Webinar: Wind Power Economics: Past, Present, and Future Trends Wind Powering America Webinar: Wind Power Economics: Past, Present, and Future Trends November...

315

High Flux Isotope Reactor power upgrade status  

SciTech Connect (OSTI)

A return to 100-MW operation is being planned for the High Flux Isotope Reactor (HFIR). Recent improvements in fuel element manufacturing procedures and inspection equipment will be exploited to reduce hot spot and hot streak factors sufficiently to permit the power upgrade without an increase in primary coolant pressure. Fresh fuel elements already fabricated for future use are being evaluated individually for power upgrade potential based on their measured coolant channel dimensions.

Rothrock, R.B.; Hale, R.E. [Oak Ridge National Lab., TN (United States); Cheverton, R.D. [Delta-21 Resources Inc., Oak Ridge, TN (United States)

1997-03-01T23:59:59.000Z

316

Effects of carbon dioxide injection on the displacement of methane and carbonate dissolution in sandstone cores  

E-Print Network [OSTI]

of carbon dioxide in depleted gas reservoirs appears to be a feasible way to dispose of industrial quantities of carbon dioxide generated by fossil fired power plants. Depleted gas reservoirs amongst others (oil reservoirs, saline aquifers) is a very... from the Sleipner Vest field is separated from the produced natural gas and is injected each year into the underlying Utsira aquifer. 1, 7, 8 A combined enhanced oil recovery (EOR) scheme and CO2 sequestration project has been undertaken in which CO2...

Maduakor, Ekene Obioma

2006-10-30T23:59:59.000Z

317

Low-Temperature Thermoelectric Power Factor Enhancement by Controlling  

E-Print Network [OSTI]

scatterings that are important in samples with relatively high volume fraction of nanoparticles (>1%). We show applications in waste heat recovery. The energy conversion efficiency depends on the material's dimensionless-dimensional electron gas.8 However, the issue of the normalization by the electron confinement region rather than

318

Reassessment of selected factors affecting siting of Nuclear Power Plants  

SciTech Connect (OSTI)

Brookhaven National Laboratory has performed a series of probabilistic consequence assessment calculations for nuclear reactor siting. This study takes into account recent insights into severe accident source terms and examines consequences in a risk based format consistent with the quantitative health objectives (QHOs) of the NRC`s Safety Goal Policy. Simplified severe accident source terms developed in this study are based on the risk insights of NUREG-1150. The results of the study indicate that both the quantity of radioactivity released in a severe accident as well as the likelihood of a release are lower than those predicted in earlier studies. The accident risks using the simplified source terms are examined at a series of generic plant sites, that vary in population distribution, meteorological conditions, and exclusion area boundary distances. Sensitivity calculations are performed to evaluate the effects of emergency protective action assumptions on the risk of prompt fatality and latent cancers fatality, and population relocation. The study finds that based on the new source terms the prompt and latent fatality risks at all generic sites meet the QHOs of the NRC`s Safety Goal Policy by margins ranging from one to more than three orders of magnitude. 4 refs., 17 figs., 24 tabs.

Davis, R.E.; Hanson, A.L.; Mubayi, V.; Nourbakhsh, H.P.

1997-02-01T23:59:59.000Z

319

Variable Frequency Motor Drives: Harmonics, Power Factor, and Energy Efficiency  

E-Print Network [OSTI]

Variable frequency motor drives (VFD's) have been on the market for many years. Early versions were unreliable and prone to failure. Relatively recent developments in Pulse-Width Modulated (PWM) waveform technology have improved VFD reliability...

Massey, G. W.

320

Optimizing Thermoelectric Power Factor by Means of a Potential Barrier  

E-Print Network [OSTI]

, S is the Seebeck coefficient, and is the thermal conductivity. Traditional thermoelectric materials suffer from conductivities. Nanostructures and low- dimensional materials such as 1D nanowires (NWs) [1, 2], 2D thin of the electrical conductivity and the Seebeck coefficient via the carrier density, and to high thermal

Note: This page contains sample records for the topic "displacement power factor" 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

Factors driving wind power development in the United States  

E-Print Network [OSTI]

presented at AWEA Windpower 2001 Conference, Washington,IN THE UNITED STATES WINDPOWER 2003 CONFERENCE WEDNESDAY,a portion to supply its Windpower green pricing program. The

Bird, Lori A.; Parsons, Brian; Gagliano, Troy; Brown, Matthew H.; Wiser, Ryan H.; Bolinger, Mark

2003-01-01T23:59:59.000Z

322

Power network analysis and optimization  

E-Print Network [OSTI]

hierarchical power distribution design with a power tree [T. Roy, Power distribution system design methodology andChen, 3D Power Distribution Network Co-design for Nanascale

Zhang, Wanping

2009-01-01T23:59:59.000Z

323

Power Series Introduction  

E-Print Network [OSTI]

Power Series 16.4 Introduction In this section we consider power series. These are examples of infinite series where each term contains a variable, x, raised to a positive integer power. We use the ratio test to obtain the radius of convergence R, of the power series and state the important result

Vickers, James

324

The displacement field characterization of two interacting parallel edge cracks in a finite body  

E-Print Network [OSTI]

/ai-1. 25; c/ai-1. 0). . . . . . 62 5. 2 5. 3 5. 4 5. 5 5. 6 5. 7 5. 8 5. 9 5. 10 5. 1 I 5. 12 5. 13 5. 14 Data Point Locations for EXP 3. 4 ? U-field. Fringe Order Error (AN) as a Function of Order of Solution for EXP 3. 4 ? U... Results. (a) U-field; (b) V-field. Opening Mode Stress Intensity Factor, Scaled by M/b, as a Function of the Ratio c/ai for the Length Ratio ai/at=0. 5. (a) U-field; (b) V-field. . Opening Mode Stress Intensity Factor, Scaled by M/b, as a Function...

Keener, Todd Whitney

2012-06-07T23:59:59.000Z

325

High Power Co-Axial Coupler  

SciTech Connect (OSTI)

A very high power Coax RF Coupler (MW-Level) is very desirable for a number of accelerator and commercial applications. For example, the development of such a coupler operating at 1.5 GHz may permit the construction of a higher-luminosity version of the Electron-Ion Collider (EIC) being planned at JLab. Muons, Inc. is currently funded by a DOE STTR grant to develop a 1.5-GHz high-power doublewindowcoax coupler with JLab (about 150 kW). Excellent progress has been made on this R&D project, so we propose an extension of this development to build a very high power coax coupler (MW level peak power and a max duty factor of about 4%). The dimensions of the current coax coupler will be scaled up to provide higher power capability.

Neubauer, M. [Muons, Inc.; Dudas, A. [Muons, Inc.; Rimmer, Robert A. [JLAB; Guo, Jiquan [JLAB; Williams, R. Scott [JLAB

2013-12-01T23:59:59.000Z

326

Power Crisis & Its Solution through Renewable Energy in Bangladesh  

E-Print Network [OSTI]

Abstract Power is one of the most important factors for a developing country like Bangladesh. Like the rest of the countries of the world, the demand for power is increasing day by day in our country. At present, power failure has become an acute problem for this country. It has become hard to solve the power crisis. There are several reasons behind this problem such as limitation of resources, low generation capacity, high demand, derated capacity of power station machineries etc. To become a developed country, Bangladesh needs to overcome the problem of power crisis soon. Renewable energy can be a great source to solve the power crisis problem at a great extent. Here we have discussed about different forms of renewable energy that we can use to meet the increasing power demand of Bangladesh. We have mainly discussed those renewable energy sources which can be used in solving the power crisis of Bangladesh such as Solar energy, Bioenergy, Geothermal,

Khairul Anam; Department Of Electrical; Electronic Engineering

327

Dispersed power and renewables  

SciTech Connect (OSTI)

Distributed power generation and renewable energy sources are discussed: The following topics are discussed: distributed resources, distributed generation, commercialization requirements, biomass power, location of existing biomass feedstocks, biomass business plan components, North Carolina BGCC partnership, New York biomass co-firing project, alfalfa for power and feed, Hawaii Pioneer Mill LOI project, next steps for biomass, wind power activity, photovoltaic modules and arrays, lead-acid batteries, superconducting magnetic energy storage, fuel cells, and electric power industry trends.

O`Sullivan, J.B.

1995-12-31T23:59:59.000Z

328

E-Print Network 3.0 - apobec-3f restriction factors Sample Search...  

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

of Toronto Collection: Computer Technologies and Information Sciences 72 ACCURACY AND POWER OF RANDOMIZATION TESTS IN MULTIVARIATE Summary: criterion. For testing factor main...

329

E-Print Network 3.0 - age factors Sample Search Results  

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

Powered by Explorit Topic List Advanced Search Sample search results for: age factors Page: << < 1 2 3 4 5 > >> 1 Biogerontology 4: 119120, 2003. 2003 Kluwer Academic...

330

Nuclear physics in soft-wall AdS/QCD: deuteron electromagnetic form factors  

E-Print Network [OSTI]

We present a calculation of the deuteron electromagnetic form factors in a soft-wall AdS/QCD approach. The power scaling of the deuteron form factors is consistent with quark counting rules.

Gutsche, Thomas; Schmidt, Ivan; Vega, Alfredo

2015-01-01T23:59:59.000Z

331

Alternative Geothermal Power Production Scenarios  

SciTech Connect (OSTI)

The information given in this file pertains to Argonne LCAs of the plant cycle stage for a set of ten new geothermal scenario pairs, each comprised of a reference and improved case. These analyses were conducted to compare environmental performances among the scenarios and cases. The types of plants evaluated are hydrothermal binary and flash and Enhanced Geothermal Systems (EGS) binary and flash plants. Each scenario pair was developed by the LCOE group using GETEM as a way to identify plant operational and resource combinations that could reduce geothermal power plant LCOE values. Based on the specified plant and well field characteristics (plant type, capacity, capacity factor and lifetime, and well numbers and depths) for each case of each pair, Argonne generated a corresponding set of material to power ratios (MPRs) and greenhouse gas and fossil energy ratios.

Sullivan, John

2014-03-14T23:59:59.000Z

332

Alternative Geothermal Power Production Scenarios  

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

The information given in this file pertains to Argonne LCAs of the plant cycle stage for a set of ten new geothermal scenario pairs, each comprised of a reference and improved case. These analyses were conducted to compare environmental performances among the scenarios and cases. The types of plants evaluated are hydrothermal binary and flash and Enhanced Geothermal Systems (EGS) binary and flash plants. Each scenario pair was developed by the LCOE group using GETEM as a way to identify plant operational and resource combinations that could reduce geothermal power plant LCOE values. Based on the specified plant and well field characteristics (plant type, capacity, capacity factor and lifetime, and well numbers and depths) for each case of each pair, Argonne generated a corresponding set of material to power ratios (MPRs) and greenhouse gas and fossil energy ratios.

Sullivan, John

333

Effect of core length and injection rate on the displacement of oil from porous media by microemulsions  

E-Print Network [OSTI]

is the volumetric injection rate, cm /sec. Blackwell verified the theoretical predictions of Aris for low 15 rates and small capillaries. He also demonstrated the importance of molecular diffusion in providing complete displacement of the oil by solvents... mixing zone, percent PV 104 116 75 33 10 000 5000 ~ VERTICAL HORIZONTAL RATE: 2. 8 FT/DAY 1000 50 30 50 70 90 110 130 PORE VOLUME INJECTED PERCENT FIGURE 8 EFFECT OF GRAVITY ON THE SIZE OF MIXING ZONE LOW RATE 34 10 000 5000 ~ HORIKONTAl L...

Akkad, Ruwaid Ahmed

1974-01-01T23:59:59.000Z

334

NREL Helps Clean Cities Displace Billions of Gallons of Petroleum, One Vehicle at a Time (Fact Sheet)  

SciTech Connect (OSTI)

With more than 15 years and nearly 3 billion gallons of displaced petroleum under its belt, the Clean Cities program relies on the support and expertise of the National Renewable Energy Laboratory (NREL). An initiative of the U.S. Department of Energy (DOE), Clean Cities creates public-private partnerships with a common mission: to reduce petroleum consumption in the transportation sector. Since the inception of Clean Cities in 1993, NREL has played a central role in supporting the program, an effort that stems from the laboratory's strategy to put scientific innovation into action in the marketplace.

Not Available

2010-10-01T23:59:59.000Z

335

Active Power Control from Wind Power (Presentation)  

SciTech Connect (OSTI)

In order to keep the electricity grid stable and the lights on, the power system relies on certain responses from its generating fleet. This presentation evaluates the potential for wind turbines and wind power plants to provide these services and assist the grid during critical times.

Ela, E.; Brooks, D.

2011-04-01T23:59:59.000Z

336

High power fast ramping power supplies  

SciTech Connect (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

337

On the dependence of the efficiency of a 240?GHz high-power gyrotron on the displacement of the electron beam and on the azimuthal index  

SciTech Connect (OSTI)

Two issues in the cavity design for a Megawatt-class, 240?GHz gyrotron are addressed. Those are first, the effect of a misaligned electron beam on the gyrotron efficiency and second, a possible azimuthal instability of the gyrotron. The aforementioned effects are important for any gyrotron operation, but could be more critical in the operation of Megawatt-class gyrotrons at frequencies above 200 GHz, which will be the anticipated requirement of DEMO. The target is to provide some basic trends to be considered during the refinement and optimization of the design. Self-consistent calculations are the base for simulations wherever possible. However, in cases for which self-consistent models were not available, fixed-field results are presented. In those cases, the conservative nature of the results should be kept in mind.

Dumbrajs, O. [Institute of Solid State Physics (ISSP), Association EUROATOM-University of Latvia, Kengaraga iela 8, LV-1063 Riga (Latvia)] [Institute of Solid State Physics (ISSP), Association EUROATOM-University of Latvia, Kengaraga iela 8, LV-1063 Riga (Latvia); Avramidis, K. A.; Franck, J.; Jelonnek, J. [Karlsruhe Institute of Technology (KIT), Institute for Pulsed Power and Microwave Technology (IHM), Association EURATOM-KIT, Kaiserstrasse 12, 76131 Karlsruhe (Germany)] [Karlsruhe Institute of Technology (KIT), Institute for Pulsed Power and Microwave Technology (IHM), Association EURATOM-KIT, Kaiserstrasse 12, 76131 Karlsruhe (Germany)

2014-01-15T23:59:59.000Z

338

Hydrogen Resource Assessment: Hydrogen Potential from Coal, Natural Gas, Nuclear, and Hydro Power  

SciTech Connect (OSTI)

This paper estimates the quantity of hydrogen that could be produced from coal, natural gas, nuclear, and hydro power by county in the United States. The study estimates that more than 72 million tonnes of hydrogen can be produced from coal, natural gas, nuclear, and hydro power per year in the country (considering only 30% of their total annual production). The United States consumed about 396 million tonnes of gasoline in 2007; therefore, the report suggests the amount of hydrogen from these sources could displace about 80% of this consumption.

Milbrandt, A.; Mann, M.

2009-02-01T23:59:59.000Z

339

ESPRIMO C5730 E-Star 5.0 The ESPRIMO C ultra small form factor PC: Enjoy maximum desktop performance  

E-Print Network [OSTI]

Profile Slot Energy-saving Reduced power costs and consumption without any loss in performance. Energy factor PC, power supply, legacy interfaces and powered serial ports integrated with a volume of only 6

Fiebig, Peter

340

Bombs unbuilt : power, ideas and institutions in international politics  

E-Print Network [OSTI]

Nuclear weapons are the most powerful weapons in human history, but contrary to virtually every prediction by scholars, relatively few states have acquired them. Why are there so few nuclear weapons states? What factors ...

Walsh, James Joseph, 1959-

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

Bicycle-powered attachments : designing for developing countries  

E-Print Network [OSTI]

There are 550 million smallholder farmers around the world who earn less than $1/day who could benefit from pedal-powered attachments. This project discusses factors to consider in designing for developing countries and ...

Wu, Jodie (Jodie Z.)

2009-01-01T23:59:59.000Z

342

E-Print Network 3.0 - ac input power Sample Search Results  

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

factor with high total harmonic... input cur- rent shape at near unity power factor. Advantages of the proposed topology are: no dc... as well as input supply variations. Matrix...

343

ELECTROCHEMICAL POWER FOR TRANSPORTATION  

E-Print Network [OSTI]

that is powered by an electric motor which is driven byPower module Reactor Electric motor Toyota EVlH electricdesign package including an electric motor and associated

Cairns, Elton J.

2012-01-01T23:59:59.000Z

344

Residential Wind Power  

E-Print Network [OSTI]

This research study will explore the use of residential wind power and associated engineering and environmental issues. There is various wind power generating devices available to the consumer. The study will discuss the dependencies of human...

Willis, Gary

2011-12-16T23:59:59.000Z

345

Space Solar Power Program  

SciTech Connect (OSTI)

Information pertaining to the Space Solar Power Program is presented on energy analysis; markets; overall development plan; organizational plan; environmental and safety issues; power systems; space transportation; space manufacturing, construction, operations; design examples; and finance.

Arif, H.; Barbosa, H.; Bardet, C.; Baroud, M.; Behar, A.; Berrier, K.; Berthe, P.; Bertrand, R.; Bibyk, I.; Bisson, J.; Bloch, L.; Bobadilla, G.; Bourque, D.; Bush, L.; Carandang, R.; Chiku, T.; Crosby, N.; De Seixas, M.; De Vries, J.; Doll, S.; Dufour, F.; Eckart, P.; Fahey, M.; Fenot, F.; Foeckersperger, S.; Fontaine, J.E.; Fowler, R.; Frey, H.; Fujio, H.; Gasa, J.M.; Gleave, J.; Godoe, J.; Green, I.; Haeberli, R.; Hanada, T.; Ha

1992-08-01T23:59:59.000Z

346

Idaho Power- Net Metering  

Broader source: Energy.gov [DOE]

Idaho does not have a statewide net-metering policy. However, each of the state's three investor-owned utilities -- Avista Utilities, Idaho Power and Rocky Mountain Power -- has developed a net...

347

Power production and ADS  

SciTech Connect (OSTI)

We describe the power production process in Accelerator Driven Sub-critical systems employing Thorium-232 and Uranium-238 as fuel and examine the demands on the power of the accelerator required.

Raja, Rajendran; /Fermilab

2010-03-01T23:59:59.000Z

348

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

349

Soldier power. Battery charging.  

E-Print Network [OSTI]

hours runtime at full load 50 W #12; (%) (kW) 300 1-5 Siemens-Power 30 (hr) 10,000 Siemens 300 Acumentrics 80 (mW/cm2) 600 400 Siemens-Power 85 (hr) 70,000 3,000 Siemens-Power 15 () 500 25 Siemens-Power 60 >2013 - , Bloom, MHI, Rolls Royce 6 #12; SOFCSOFC * (LSCF ) ( Ag

Hong, Deog Ki

350

ELECTROCHEMICAL POWER FOR TRANSPORTATION  

E-Print Network [OSTI]

resistant material for contact with s Low-cost seals Low-cost electrolyte Specific power is low Thermal

Cairns, Elton J.

2012-01-01T23:59:59.000Z

351

Concentrating Solar Power  

SciTech Connect (OSTI)

Summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its concentrating solar power subprogram.

Not Available

2008-09-01T23:59:59.000Z

352

Green Power Inverter Prvningsrapport  

E-Print Network [OSTI]

Green Power Inverter Prøvningsrapport SolenergiCentret Søren Poulsen Ivan Katic Oktober 2004 #12;Green Power Inverter målerapport.doc SolenergiCentret - 04-03-2005 2 Forord Nærværende rapport indeholder Teknologisk Instituts bidrag til målinger i forbindelse med PSO projektet "Green Power Inverter

353

Power Plant Cycling Costs  

SciTech Connect (OSTI)

This report provides a detailed review of the most up to date data available on power plant cycling costs. The primary objective of this report is to increase awareness of power plant cycling cost, the use of these costs in renewable integration studies and to stimulate debate between policymakers, system dispatchers, plant personnel and power utilities.

Kumar, N.; Besuner, P.; Lefton, S.; Agan, D.; Hilleman, D.

2012-07-01T23:59:59.000Z

354

Power/Privilege Definitions  

E-Print Network [OSTI]

Major; People's Institute for Survival and Beyond, New Orleans 2. Power is the ability to define reality and to convince other people that it is their definition. ~ Dr. Wade Nobles 3. Power is the capacity to act. 4 different cultures. [JL] RACISM Racism is race prejudice plus power [See Racist]. People's Institute calls

Sheridan, Jennifer

355

Power Dancers Audition Packet  

E-Print Network [OSTI]

Power Dancers Dance Team Audition Packet September 8-10, 2014 #12;Power Dancers Dance Team Dear service to their school with the support of the faculty, administration, and other groups on campus, but they also provide a source of great school spirit to UT Dallas. Power Dancers provides a real opportunity

O'Toole, Alice J.

356

Power Dancers Audition Packet  

E-Print Network [OSTI]

Power Dancers Dance Team Audition Packet September 9-11, 2013 #12;Power Dancers Dance Team Dear service to their school with the support of the faculty, administration, and other groups on campus, but they also provide a source of great school spirit to UT Dallas. Power Dancers provides a real opportunity

O'Toole, Alice J.

357

Power Dancers Audition Packet  

E-Print Network [OSTI]

Power Dancers Dance Team Audition Packet September 10 & 12, 2012 #12;Power Dancers Dance Team Dear service to their school with the support of the faculty, administration, and other groups on campus, but they also provide a source of great school spirit to UT Dallas. Power Dancers provides a real opportunity

O'Toole, Alice J.

358

ORNL/CP-97155 Instantaneous Reactive Power and Power Factor of  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: CrystalFG36-08GO18149 Revision: - Date: 06/15/10102359 ENERGY DISSIPATION

359

Design and Power Management of Energy Harvesting Embedded Systems  

E-Print Network [OSTI]

America Princeton, NJ 08540 vijay@nec-labs.com Pai H. Chou University of California Irvine, CA 92697 factors such as the characteristics of the harvesting transducers, chemistry and capacity of the batteries, Design Keywords Energy harvesting, power management, wireless sensors, solar power 1. INTRODUCTION Energy

Chou, Pai H.

360

Proposed Specifications for Implementation of Fifth Power Plan  

E-Print Network [OSTI]

Commercial Buildings October 13, 2006 #12;Overview The Northwest Power and Conservation Council seeks comment commercial buildings adopted in the Fifth Northwest Electric Power and Conservation Plan. Description in commercial buildings was the most important factor for inclusion. Both efficiency level and breadth of scope

Note: This page contains sample records for the topic "displacement power factor" 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

How Power is Lost: Illusions of Alliance Among the Powerful  

E-Print Network [OSTI]

while most accounts of power loss focus on ethical breachesPower Loss .1. Proposed Model of Power Loss Figure 2. Social Monitoring

Brion, Sebastien

2010-01-01T23:59:59.000Z

362

Energy Storage & Power Electronics 2008 Peer Review - Power Electronic...  

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

Power Electronics (PE) Systems Presentations Energy Storage & Power Electronics 2008 Peer Review - Power Electronics (PE) Systems Presentations The 2008 Peer Review Meeting for the...

363

Karnataka Power Corporation Limited and National Thermal Power...  

Open Energy Info (EERE)

Limited and National Thermal Power Corporation JV Jump to: navigation, search Name: Karnataka Power Corporation Limited and National Thermal Power Corporation JV Place: India...

364

Backup Power Cost of Ownership Analysis and Incumbent Technology Comparison  

SciTech Connect (OSTI)

This cost of ownership analysis identifies the factors impacting the value proposition for fuel cell backup power and presents the estimated annualized cost of ownership for fuel cell backup power systems compared with the incumbent technologies of battery and diesel generator systems. The analysis compares three different backup power technologies (diesel, battery, and fuel cell) operating in similar circumstances in four run time scenarios (8, 52, 72, and 176 hours).

Kurtz, J.; Saur, G.; Sprik, S.; Ainscough, C.

2014-09-01T23:59:59.000Z

365

Measured effect of wind generation on the fuel consumption of an isolated diesel power system  

SciTech Connect (OSTI)

The Block Island Power Company (BIPCO), on Block Island, Rhode Island, operates an isolated electric power system consisting of diesel generation and an experimental wind turbine. The 150-kW wind turbine, designated MOD-OA by the U.S. Department of Energy is typically operated in parallel with two diesel generators to serve an average winter load of 350 kW. Wind generation serves up to 60% of the system demand depending on wind speed and total system load. Results of diesel fuel consumption measurements are given for the diesel units operated in parallel with the wind turbine and again without the wind turbine. The fuel consumption data are used to calculate the amount of fuel displaced by wind energy. Results indicate that the wind turbine displaced 25,700 lbs. of the diesel fuel during the test period, representing a calculated reduction in fuel consumption of 6.7% while generating 11% of the total electrical energy. The amount of displaced fuel depends on operating conditions and system load. It is also shown that diesel engine throttle activity resulting from wind gusts which rapidly change the wind turbine output do not significantly influence fuel consumption.

Stiller, P.; Scott, G.; Shaltens, R.

1983-06-01T23:59:59.000Z

366

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.

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

1999-01-01T23:59:59.000Z

367

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

368

Variable gas spring for matching power output from FPSE to load of refrigerant compressor  

DOE Patents [OSTI]

The power output of a free piston Stirling engine is matched to a gas compressor which it drives and its stroke amplitude is made relatively constant as a function of power by connecting a gas spring to the drive linkage from the engine to the compressor. The gas spring is connected to the compressor through a passageway in which a valve is interposed. The valve is linked to the drive linkage so it is opened when the stroke amplitude exceeds a selected limit. This allows compressed gas to enter the spring, increase its spring constant, thus opposing stroke increase and reducing the phase lead of the displacer ahead of the piston to reduce power output and match it to a reduced load power demand.

Chen, Gong (Athens, OH); Beale, William T. (Athens, OH)

1990-01-01T23:59:59.000Z

369

Variable gas spring for matching power output from FPSE to load of refrigerant compressor  

DOE Patents [OSTI]

The power output of a free piston Stirling engine is matched to a gas compressor which it drives and its stroke amplitude is made relatively constant as a function of power by connecting a gas spring to the drive linkage from the engine to the compressor. The gas spring is connected to the compressor through a passageway in which a valve is interposed. The valve is linked to the drive linkage so it is opened when the stroke amplitude exceeds a selected limit. This allows compressed gas to enter the spring, increase its spring constant, thus opposing stroke increase and reducing the phase lead of the displacer ahead of the piston to reduce power output and match it to a reduced load power demand. 6 figs.

Chen, G.; Beale, W.T.

1990-04-03T23:59:59.000Z

370

EA-1726: Kahuku Wind Power, LLC Wind Power Generation Facility...  

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

6: Kahuku Wind Power, LLC Wind Power Generation Facility, O'ahu, HI EA-1726: Kahuku Wind Power, LLC Wind Power Generation Facility, O'ahu, HI May 3, 2010 EA-1726: Final...

371

Dynamic Reactive Power Control of Isolated Power Systems  

E-Print Network [OSTI]

This dissertation presents dynamic reactive power control of isolated power systems. Isolated systems include MicroGrids in islanded mode, shipboard power systems operating offshore, or any other power system operating in islanded mode intentionally...

Falahi, Milad

2012-10-03T23:59:59.000Z

372

Power Quality Aspects in a Wind Power Plant: Preprint  

SciTech Connect (OSTI)

Although many operational aspects affect wind power plant operation, this paper focuses on power quality. Because a wind power plant is connected to the grid, it is very important to understand the sources of disturbances that affect the power quality.

Muljadi, E.; Butterfield, C. P.; Chacon, J.; Romanowitz, H.

2006-01-01T23:59:59.000Z

373

Origins of interlayer formation and misfit dislocation displacement in the vicinity of InAs/GaAs quantum dots  

SciTech Connect (OSTI)

We have examined the origins of interlayer formation and misfit dislocation (MD) displacement in the vicinity of InAs/GaAs quantum dots (QDs). For QDs formed by the Stranski-Krastanov mode, regularly spaced MDs nucleate at the interface between the QD and the GaAs buffer layer. In the droplet epitaxy case, both In island formation and In-induced nano-drilling of the GaAs buffer layer are observed during In deposition. Upon annealing under As flux, the In islands are converted to InAs QDs, with an InGaAs interlayer at the QD/buffer interface. Meanwhile, MDs nucleate at the QD/interlayer interface.

Huang, S.; Kim, S. J.; Pan, X. Q. [Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States); Goldman, R. S., E-mail: rsgold@umich.edu [Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States); Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)

2014-07-21T23:59:59.000Z

374

Topical viscosity control for light hydrocarbon displacing fluids in petroleum recovery and in fracturing fluids for well stimulation  

DOE Patents [OSTI]

Solvent-type flooding fluids comprising light hydrocarbons in the range of ethane to hexane (and mixtures thereof) are used to displace crude oil in formations having temperatures of about 20 degrees to about 150 degrees Centigrade and pressures above about 650 psi, the light hydrocarbons having dissolved therein from about 0.05% to about 3% of an organotin compound of the formula R.sub.3 SnF where each R is independently an alkyl, aryl or alkyaryl group from 3 to 12 carbon atoms. Under the pressures and temperatures described, the organotin compounds become pentacoordinated and linked through the electronegative bridges, forming polymers within the light hydrocarbon flooding media to render them highly viscous. Under ambient conditions, the viscosity control agents will not readily be produced from the formation with either crude oil or water, since they are insoluble in the former and only sparingly soluble in the latter.

Heller, John P. (Socorro, NM); Dandge, Dileep K. (Socorro, NM)

1986-01-01T23:59:59.000Z

375

Meson electromagnetic form factors  

E-Print Network [OSTI]

The electromagnetic structure of the pseudoscalar meson nonet is completely described by the sophisticated Unitary&Analytic model, respecting all known theoretical properties of the corresponding form factors.

Stanislav Dubnicka; Anna Z. Dubnickova

2012-10-23T23:59:59.000Z

376

Prone Positioning Causes the Heart To Be Displaced Anteriorly Within the Thorax: Implications for Breast Cancer Treatment  

SciTech Connect (OSTI)

Introduction: Prone positioning has been suggested as an alternative to the conventional supine position for patients receiving breast radiotherapy, but few data exist on how this may alter heart location. We herein quantitatively compare the intrathoracic location of the heart in the prone and supine positions in patients treated for breast cancer. Methods and Materials: In 16 patients treated with tangent photons for breast cancer, the computed tomography planning images (obtained in the supine position) and diagnostic magnetic resonance images (obtained in the prone position) were studied. For each case, the distance between the anterior pericardium and the anterior chest wall was measured at nine specific points; three points at each of three axial levels. The differences in the measurements between the prone and supine positions were compared with the Wilcoxon signed-rank test. Results: There is a systematic displacement of the lateral and superior aspect of the heart closer to the chest wall in the prone vs. supine position (mean displacement 19 mm (95% confidence interval 13.7-25.1 mm, p < 0.001); the medial and inferior aspects remain fixed. There was also a reduction in volume of lung interposed between the heart and chest wall when prone (mean decrease of 22 mL, p < 0.001 for difference). Conclusions: The superior and lateral aspects of the heart typically move anteriorly during prone positioning compared with the supine position. This may have negative consequences in situations in which the high-risk target tissues include the chest wall or deep breast.

Chino, Junzo P. [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States)], E-mail: chino001@mc.duke.edu; Marks, Lawrence B. [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States)

2008-03-01T23:59:59.000Z

377

On the quantum effects on noncollinear Lagrangian points and displaced periodic orbits in the Earth-Moon system  

E-Print Network [OSTI]

Recent work in the literature has shown that the leading long distance quantum corrections to the Newtonian potential imply tiny but observable effects in the restricted three-body problem of celestial mechanics, i.e., at the Lagrangian libration points of stable equilibrium the planetoid is not exactly at equal distance from the two bodies of large mass, but the Newtonian values of its coordinates are changed by a few millimeters in the Earth-Moon system. First, we assess such a theoretical calculation by exploiting the full theory of the quintic equation, i.e., its reduction to Bring-Jerrard form and the resulting expression of roots in terms of generalized hypergeometric functions. By performing the numerical analysis of the exact formulas for the roots, we confirm and slightly improve the theoretical evaluation of quantum corrected coordinates of Lagrangian libration points of stable equilibrium. Second, we discuss the prospects to measure, with the help of laser ranging, the above departure from the equilateral triangle picture, which is a challenging task. On the other hand, a modern version of the planetoid is the solar sail, and much progress has been made, in recent years, on the displaced periodic orbits of solar sails at all libration points, both stable and unstable. The present paper investigates therefore, eventually, a restricted three-body problem involving Earth, Moon and a solar sail. By taking into account the quantum corrections to the Newtonian potential, displaced periodic orbits of the solar sail at libration points are again found to exist.

Emmanuele Battista; Simone Dell'Agnello; Giampiero Esposito; Jules Simo

2015-01-12T23:59:59.000Z

378

Voluntary Green Power Market Forecast through 2015  

SciTech Connect (OSTI)

Various factors influence the development of the voluntary 'green' power market--the market in which consumers purchase or produce power from non-polluting, renewable energy sources. These factors include climate policies, renewable portfolio standards (RPS), renewable energy prices, consumers' interest in purchasing green power, and utilities' interest in promoting existing programs and in offering new green options. This report presents estimates of voluntary market demand for green power through 2015 that were made using historical data and three scenarios: low-growth, high-growth, and negative-policy impacts. The resulting forecast projects the total voluntary demand for renewable energy in 2015 to range from 63 million MWh annually in the low case scenario to 157 million MWh annually in the high case scenario, representing an approximately 2.5-fold difference. The negative-policy impacts scenario reflects a market size of 24 million MWh. Several key uncertainties affect the results of this forecast, including uncertainties related to growth assumptions, the impacts that policy may have on the market, the price and competitiveness of renewable generation, and the level of interest that utilities have in offering and promoting green power products.

Bird, L.; Holt, E.; Sumner, J.; Kreycik, C.

2010-05-01T23:59:59.000Z

379

Southeastern Power Administration | Department of Energy  

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

Southeastern Power Administration Southeastern Power Administration Southeastern Power Administration View All Maps Addthis...

380

Alternative Energy Technologies Solar Power  

E-Print Network [OSTI]

#12;Alternative Energy Technologies Solar Power Photovoltaics Concentrating Solar Power (CSP) Power;Concentrating Solar Power (CSP) Reflector material is Aluminum or Silver Tube material ..... Several possible ............... Mexico, Canada, Peru Alumina ............Guinea, Brazil, Australia, Jamaica Manganese ....... S. Africa

Scott, Christopher

Note: This page contains sample records for the topic "displacement power factor" 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

Peak power ratio generator  

DOE Patents [OSTI]

A peak power ratio generator is described for measuring, in combination with a conventional power meter, the peak power level of extremely narrow pulses in the gigahertz radio frequency bands. The present invention in a preferred embodiment utilizes a tunnel diode and a back diode combination in a detector circuit as the only high speed elements. The high speed tunnel diode provides a bistable signal and serves as a memory device of the input pulses for the remaining, slower components. A hybrid digital and analog loop maintains the peak power level of a reference channel at a known amount. Thus, by measuring the average power levels of the reference signal and the source signal, the peak power level of the source signal can be determined.

Moyer, Robert D. (Albuquerque, NM)

1985-01-01T23:59:59.000Z

382

Entangling Power of Permutations  

E-Print Network [OSTI]

The notion of entangling power of unitary matrices was introduced by Zanardi, Zalka and Faoro [PRA, 62, 030301]. We study the entangling power of permutations, given in terms of a combinatorial formula. We show that the permutation matrices with zero entangling power are, up to local unitaries, the identity and the swap. We construct the permutations with the minimum nonzero entangling power for every dimension. With the use of orthogonal latin squares, we construct the permutations with the maximum entangling power for every dimension. Moreover, we show that the value obtained is maximum over all unitaries of the same dimension, with possible exception for 36. Our result enables us to construct generic examples of 4-qudits maximally entangled states for all dimensions except for 2 and 6. We numerically classify, according to their entangling power, the permutation matrices of dimension 4 and 9, and we give some estimates for higher dimensions.

Lieven Clarisse; Sibasish Ghosh; Simone Severini; Anthony Sudbery

2005-04-11T23:59:59.000Z

383

Do high redshift quasars have powerful jets?  

E-Print Network [OSTI]

for the injection spectrum and surrounding gas profile (set [A] in Mocz et al (2011): the in- jection spectrum is given by a power-law index 2.14 and Lorentz factors ranging between 1 to 106; the surrounding density profile has a powerlaw index of 1.5). We assume... the galaxy hosts of quasars at z > 3 are com- pact (Szomoru et al 2013), and their group and cluster gas have more energy than is explainable by gravitational infall alone (Wu et al 2000; McCarthy et al 2012). Powerful jets are a considerable source of energy...

Fabian, A. C.; Walker, S. A.; Celotti, A.; Ghisellini, G.; Mocz, P.; Blundell, K. M.; McMahon, R. G.

2014-06-04T23:59:59.000Z

384

Power transaction issues in deregulated power systems  

E-Print Network [OSTI]

numbers Slack Bus IVI, 0 P;, Q; Gen. Bus Q 0 2, 3, 4, . . . , l+NPV Load Bus Pu Qi 2+NPV, 3+NPV, . . . , N Using the Kirchhoff's current law at a given node, the real and reactive power balance equations are written at each bus of the system: n P... ~ 822 821 827 9!, '7 Fig. 4. IEEE 30 bus system. 11 Figure 5 shows the bus dialog box for bus 13, where a 10MW increase in real power generation is entered. 1 IOIOOO 1QOtKMCO QOQINIO QOXCOO O'I OOXI -0 DDDOCO tg. . us ata. Step 1. Let us...

Roycourt, Henrik

2000-01-01T23:59:59.000Z

385

Dissecting Soft Radiation with Factorization  

E-Print Network [OSTI]

An essential part of high-energy hadronic collisions is the soft hadronic activity that underlies the primary hard interaction. It includes soft radiation from the primary hard partons, secondary multiple parton interactions (MPI), and factorization-violating effects. The invariant mass spectrum of the leading jet in $Z$+jet and $H$+jet events is directly sensitive to these effects, and we use a QCD factorization theorem to predict its dependence on the jet radius $R$, jet $p_T$, jet rapidity, and partonic process for both the perturbative and nonperturbative components of primary soft radiation. We prove that the nonperturbative contributions involve only odd powers of $R$, and the linear $R$ term is universal for quark and gluon jets. The hadronization model in PYTHIA8 agrees well with these properties. The perturbative soft initial state radiation (ISR) has a contribution that depends on the jet area in the same way as the underlying event, but this degeneracy is broken by dependence on the jet $p_T$. The size of this soft ISR contribution is proportional to the color state of the initial partons, yielding the same positive contribution for $gg\\to Hg$ and $gq\\to Zq$, but a negative interference contribution for $q\\bar q\\to Z g$. Hence, measuring these dependencies allows one to separate hadronization, soft ISR, and MPI contributions in the data.

Iain W. Stewart; Frank J. Tackmann; Wouter J. Waalewijn

2015-02-10T23:59:59.000Z

386

Displacement of diesel fuel with wind energy in rural Alaskan villages. Final progress and project closeout report  

SciTech Connect (OSTI)

The basic concept behind this project was to construct a wind diesel hybrid power system which combines and maximizes the intermittent and variable energy output of wind turbine(s) with diesel generator(s) to provide continuous high quality electric power to weak isolated mini-grids.

Meiners, Dennis; Drouhilet, Steve; Reeve, Brad; Bergen, Matt

2002-03-11T23:59:59.000Z

387

Electric power annual 1993  

SciTech Connect (OSTI)

This report presents a summary of electric power industry statistics at national, regional, and state levels: generating capability and additions, net generation, fossil-fuel statistics, retail sales and revenue, finanical statistics, environmental statistics, power transactions, demand side management, nonutility power producers. Purpose is to provide industry decisionmakers, government policymakers, analysts, and the public with historical data that may be used in understanding US electricity markets.

Not Available

1994-12-08T23:59:59.000Z

388

Interleaved power converter  

DOE Patents [OSTI]

A power converter architecture interleaves full bridge converters to alleviate thermal management problems in high current applications, and may, for example, double the output power capability while reducing parts count and costs. For example, one phase of a three phase inverter is shared between two transformers, which provide power to a rectifier such as a current doubler rectifier to provide two full bridge DC/DC converters with three rather than four high voltage inverter legs.

Zhu, Lizhi (Canton, MI)

2007-11-13T23:59:59.000Z

389

Trumping and Power Majorization  

E-Print Network [OSTI]

Majorization is a basic concept in matrix theory that has found applications in numerous settings over the past century. Power majorization is a more specialized notion that has been studied in the theory of inequalities. On the other hand, the trumping relation has recently been considered in quantum information, specifically in entanglement theory. We explore the connections between trumping and power majorization. We prove an analogue of Rado's theorem for power majorization and consider a number of examples.

David W. Kribs; Rajesh Pereira; Sarah Plosker

2012-10-24T23:59:59.000Z

390

Nuclear power browning out  

SciTech Connect (OSTI)

When the sad history of nuclear power is written, April 26, 1986, will be recorded as the day the dream died. The explosion at the Chernobyl plant was a terrible human tragedy- and it delivered a stark verdict on the hope that nuclear power will one day replace fossil fuel-based energy systems. Nuclear advocates may soldier on, but a decade after Chernobyl it is clear that nuclear power is no longer a viable energy option for the twenty-first century.

Flavin, C.; Lenssen, N.

1996-05-01T23:59:59.000Z

391

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

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartment of Energy from Elizabeth C. PPortland DataBoard -Energy SolutionsPower

392

Economic analysis of municipal wastewater utilization for thermoelectric power production  

SciTech Connect (OSTI)

The thermoelectric power industry in the U.S. uses a large amount of freshwater. The large water demand is increasingly a problem, especially for new power plant development, as availability of freshwater for new uses diminishes in the United States. Reusing non-traditional water sources, such as treated municipal wastewater, provides one option to mitigate freshwater usage in the thermoelectric power industry. The amount of freshwater withdrawal that can be displaced with non-traditional water sources at a particular location requires evaluation of the water management and treatment requirements, considering the quality and abundance of the non-traditional water sources. This paper presents the development of an integrated costing model to assess the impact of degraded water treatment, as well as the implications of increased tube scaling in the main condenser. The model developed herein is used to perform case studies of various treatment, condenser cleaning and condenser configurations to provide insight into the ramifications of degraded water use in the cooling loops of thermoelectric power plants. Further, this paper lays the groundwork for the integration of relationships between degraded water quality, scaling characteristics and volatile emission within a recirculating cooling loop model.

Safari, I.; Walker, M.; Abbasian, J.; Arastoopour, H.; Hsieh, M-K.; Theregowda, R.; Dzombak, D.; Miller, D.

2011-01-01T23:59:59.000Z

393

Balancing of Wind Power.  

E-Print Network [OSTI]

?? In the future, renewable energy share, especially wind power share, in electricity generation is expected to increase. Due to nature of the wind, wind (more)

lker, Muhammed Akif

2011-01-01T23:59:59.000Z

394

Solar Power Purchase Agreements  

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

Solar Power Purchase Agreements Brian Millberg | Energy Manager, City of Minneapolis Direct Ownership * Financial: Even at 3kW installed cost, simple payback is 18 years (initial...

395

Concentrated Solar Thermoelectric Power  

Broader source: Energy.gov [DOE]

This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 2325, 2013 near Phoenix, Arizona.

396

Critical pulse power components  

SciTech Connect (OSTI)

Critical components for pulsed power conditioning systems will be reviewed. Particular emphasis will be placed on those components requiring significant development efforts. Capacitors, for example, are one of the weakest elements in high-power pulsed systems, especially when operation at high-repetition frequencies for extended periods of time are necessary. Switches are by far the weakest active components of pulse power systems. In particular, opening switches are essentially nonexistent for most applications. Insulaton in all systems and components requires development and improvement. Efforts under way in technology base development of pulse power components will be discussed.

Sarjeant, W.J.; Rohwein, G.J.

1981-01-01T23:59:59.000Z

397

Municipal Electric Power (Minnesota)  

Broader source: Energy.gov [DOE]

This section describes energy procurement for local utilities operating in Minnesota and provides a means for Minnesota cities to construct and operate hydroelectric power plants. The statute gives...

398

Power Supply Negotiations  

Office of Environmental Management (EM)

Southeastern Federal Power Alliance Incremental Decay in Energy March 11, 2014 2 Incremental Decay in Energy Hydropower customers observations from our review of the Buford...

399

Alabama Power- UESC Activities  

Broader source: Energy.gov [DOE]

Presentationgiven at the Fall 2012 Federal Utility Partnership Working Group (FUPWG) meetingdiscusses Alabama Power and its utility energy service contract (UESC) projects and activities.

400

Energy 101: Hydroelectric Power  

Office of Energy Efficiency and Renewable Energy (EERE)

Learn how hydroelectric power, or hydropower, captures the kinetic energy of flowing water and turns it into electricity for our homes and businesses.

Note: This page contains sample records for the topic "displacement power factor" 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

PowerPoint Presentation  

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

and Characterization (SciChar) Workshop Characterization Capabilities Battery Questions Neutron Advantages * Scattering Power unrelated to Z - Many low Z elements have high cross...

402

PowerPoint Presentation  

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

DOE Energy Storage & Power Electronics Research Programs September 29 - 30, 2008 Marcelo Schupbach, Ph.D. Chief Technical Officer APEI, Inc. 535 Research Center Blvd. Fayetteville,...

403

PowerPoint Presentation  

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

Systems Program 1 DOE Energy Storage & Power Electronics Research Programs October 8, 2009 Marcelo Schupbach, Ph.D. Chief Technology Officer APEI, Inc. 535 Research Center Blvd....

404

European Space Power Conference  

SciTech Connect (OSTI)

To support the Space Exploration Initiative (SEI), a study was performed to investigate power system alternatives for the rover vehicles and servicers that were subsequently generated for each of these rovers and servicers, candidate power sources incorporating various power generation and energy storage technologies were identified. The technologies were those believed most appropriate to the SEI missions, and included solar, electrochemical, and isotope systems. The candidates were characterized with respect to system mass, deployed area, and volume. For each of the missions a preliminary selection was made. Results of this study depict the available power sources in light of mission requirements as they are currently defined.

Bents, D.J.; Kohout, L.L.; Mckissock, B.I.; Rodriguez, C.D.; Withrow, C.A.; Colozza, A.; Hanlon, J.C.; Schmitz, P.C.

1991-01-01T23:59:59.000Z

405

Wide Bandgap Power Electronics  

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

- Acquiring new prototype devices. - Building new gate drivers and test set- ups for power switches with fast switching times * Total project funding - DOE 100% * FY08 - 432K *...

406

Application Power Signature Analysis  

SciTech Connect (OSTI)

The high-performance computing (HPC) community has been greatly concerned about energy efficiency. To address this concern, it is essential to understand and characterize the electrical loads of HPC applications. In this work, we study whether HPC applications can be distinguished by their power-consumption patterns using quantitative measures in an automatic manner. Using a collection of 88 power traces from 4 different systems, we find that basic statistical measures do a surprisingly good job of summarizing applications' distinctive power behavior. Moreover, this study opens up a new area of research in power-aware HPC that has a multitude of potential applications.

Hsu, Chung-Hsing [ORNL] [ORNL; Combs, Jacob [Sonoma State University] [Sonoma State University; Nazor, Jolie [Sonoma State University] [Sonoma State University; Santiago, Fabian [Sonoma State University] [Sonoma State University; Thysell, Rachelle [Sonoma State University] [Sonoma State University; Rivoire, Suzanne [Sonoma State University] [Sonoma State University; Poole, Stephen W [ORNL] [ORNL

2014-01-01T23:59:59.000Z

407

Contemporary Trends power point  

E-Print Network [OSTI]

Power point slides guiding presentation on closing the gap between political acceptability and administrative sustainability as a prerequisite for effective governance. Leadership challenges are described

Nalbandian, John

2013-02-01T23:59:59.000Z

408

Solar power satellites.  

E-Print Network [OSTI]

??During energy crisis at the end of the Sixties, a new idea to exploit solar energy arose: Solar Power Satellites. These satellites need a huge (more)

Palmas, Alessandro

2013-01-01T23:59:59.000Z

409

Economics of nuclear power in Finland  

SciTech Connect (OSTI)

The nuclear power generation fits perfectly with the long duration load profile of the Finnish power system. The good performance of the Finnish nuclear power has yielded benefits also to the consumers through its contribution to decreasing the electricity price. Furthermore, the introduction of nuclear power has resulted in a clear drop in carbon dioxide emissions from electricity generation in the shift of 1970's and 1980's. In the year 2001 the four Finnish nuclear power units at Loviisa and Olkiluoto generated 22.8 TWh electricity, equivalent to 28 per cent of the total consumption. Loviisa power station has a net output capacity of 2 x 488 MW, and Olkiluoto 2 x 840 MW. The capacity factors of the four nuclear units have been above 90 per cent, which are among the highest in the world. The energy-intensive process industries in particular have strong belief in nuclear power. In November 2000, Teollisuuden Voima company (TVO) submitted to the Finnish Government an application for decision in principle concerning the construction of a new nuclear power plant unit. The arguments were among other things to guarantee for the Finnish industry the availability of cheap electric energy and to meet the future growth of electricity consumption in Finland. The carbon-free nuclear power also represents the most efficient means to meet the Greenhouse Gas abatement quota of Finland. Simultaneously, the energy policy of the Government includes intensive R and D and investment support for the renewable energy sources and energy conservation, and the objective is also to replace coal with natural gas as much as reasonably possible. The fifth nuclear unit would be located in one of the existing Finnish nuclear sites, i.e. Olkiluoto or Loviisa. The size of the new nuclear unit would be in the range of 1000 to 1600 MW electric. The ready infrastructure of the existing site could be utilised resulting in lower investment cost for the new unit. The Finnish Government accepted the application of TVO Company on January 17, 2002, but the final word will be said by the Parliament. During the spring 2002 there will be intensive discussion on all levels, whether nuclear power is for or against 'the total benefit of the society'. The Parliament decision is expected to be made by the summer 2002. In this paper, firstly a financial comparison of the new base-load power plant alternatives is carried out in the Finnish circumstances, and secondly the actual power production costs of the existing Olkiluoto nuclear power plant based on the operating history of about 20 years will be referred. (authors)

Tarjanne, Risto; Luostarinen, Kari [Lappeenranta University of Technology, Department of Energy and Environmental Technology, PO Box 20, FIN-53851 Lappeenranta (Finland)

2002-07-01T23:59:59.000Z

410

Power, Media & Montesquieu. New forms of public power and the balance of power  

E-Print Network [OSTI]

SUMMARY Power, Media & Montesquieu. New forms of public power and the balance of power are organized it is crucial to restrain the power that the state exerts on its citizens. The state has three functions, commonly known as powers: the legislative, executive and judicial powers. This three

van den Brink, Jeroen

411

NUCLEAR POWER in CALIFORNIA  

E-Print Network [OSTI]

NUCLEAR POWER in CALIFORNIA: 2007 STATUS REPORT CALIFORNIA ENERGY COMMISSION October 2007 CEC-100, California Contract No. 700-05-002 Prepared For: California Energy Commission Barbara Byron, Senior Nuclear public workshops on nuclear power. The Integrated Energy Policy Report Committee, led by Commissioners

412

The Icelandic Power Situation  

E-Print Network [OSTI]

energy attracts power intensive industry to Iceland Households use only 5% 90% of district heating ensured · Feasible to sell excess energy · Takes advantage of the flexiblity of hydropower · Energy with low cost geothermal energy 80% 5% 15% Households Other users Power intensive industries #12;Future

Karlsson, Brynjar

413

Purchasing Renewable Power  

Broader source: Energy.gov [DOE]

Federal agencies can purchase renewable power or renewable energy certificates (RECs) from a utility or other organization to meet Federal renewable energy requirements. Renewable power and RECs are good choices for facilities where on-site projects may be difficult or capital budgets are limited.

414

Power module assembly  

DOE Patents [OSTI]

A power module assembly of the type suitable for deployment in a vehicular power inverter, wherein the power inverter has a grounded chassis, is provided. The power module assembly comprises a conductive base layer electrically coupled to the chassis, an insulating layer disposed on the conductive base layer, a first conductive node disposed on the insulating layer, a second conductive node disposed on the insulating layer, wherein the first and second conductive nodes are electrically isolated from each other. The power module assembly also comprises a first capacitor having a first electrode electrically connected to the conductive base layer, and a second electrode electrically connected to the first conductive node, and further comprises a second capacitor having a first electrode electrically connected to the conductive base layer, and a second electrode electrically connected to the second conductive node.

Campbell, Jeremy B. (Torrance, CA); Newson, Steve (Redondo Beach, CA)

2011-11-15T23:59:59.000Z

415

V2G Technology for Designing Active Filter System to Improve Wind Power Quality  

E-Print Network [OSTI]

V2G Technology for Designing Active Filter System to Improve Wind Power Quality F. R. Islam, H. R factor correction and harmonics current compensation. Index Terms--PHEVs, V2G, Wind Power, Battery Scheme to design active filter is proposed here to improve the quality of wind power output. Harmonics is one

Pota, Himanshu Roy

416

Comparative Assessment of Coal-and Natural Gas-fired Power Plants under a  

E-Print Network [OSTI]

Comparative Assessment of Coal- and Natural Gas-fired Power Plants under a CO2 Emission Performance standard (EPS) for pulverized coal (PC) and natural gas combined cycle (NGCC) power plants; · Evaluate% · Natural Gas-fired Power Plant: Adv. 7F Gas Turbine Capacity Factor 75% · Cost Basis: 2007$, constant 7

417

A Framework to Determine the Probability Density Function for the Output Power of Wind Farms  

E-Print Network [OSTI]

A Framework to Determine the Probability Density Function for the Output Power of Wind Farms Sairaj to the power output of a wind farm while factoring in the availability of the wind turbines in the farm availability model for the wind turbines, we propose a method to determine the wind-farm power output pdf

Liberzon, Daniel

418

Importance of Measurement: The Impact of Power Quality in Energy Efficiency  

E-Print Network [OSTI]

eyes and ears. The principle is you cannot control what you cannot measure. Looking closer at the power side, the inefficiencies caused by power quality issues such as power factor and harmonics have often been easily overlooked due to the traditional...

Qazi, T.; Roy, S.

2010-01-01T23:59:59.000Z

419

A Tariff for Reactive Power 0 100 200 300 400 500 600 700 800  

E-Print Network [OSTI]

to the distribution system economically by customers when new inverters are installed. The inverter would be supplied, and adjustable-speed motor drives. Index Terms--Inverter, Power Factor, Reactive Power, Tariff, Voltage efficiency. Reactive power is theoretically available from any inverter-based equipment such as photovoltaic

Pennycook, Steve

420

2007 IEEE Canada Electrical Power Conference Solar Photovoltaic Array's Shadow Evaluation  

E-Print Network [OSTI]

whether the maximum output power of the solar photovoltaic arrays under the system is sufficiently cost, and the the "shading factor," which is defined as the ratio of the non- maximum output power of the solar photovoltaic solar PV arrays: effects on performance, and in particular the output power of * In the numerical method

Lehman, Brad

Note: This page contains sample records for the topic "displacement power factor" 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

Power Modeling and Optimization for GPGPUs  

E-Print Network [OSTI]

Caused by the switching of transistors to charge and discharge the load capacitance, dynamic power can be calculated by the following equation: 2 d ddP aCV f? (1) Here, the activity factor, a , is a fraction between 0 and 1 indicating how often... Files .................................................................... 19 4.1 Tunneling Field Effect Transistors (TFETs) ....................................................... 19 4.2 Observation on Memory Contentions...

Li, Zhi

2013-05-31T23:59:59.000Z

422

American Mineralogist, Volume 75, pages 1253-1267, 1990 A study of the mean-square displacement amplitudes of Si, AI, and 0 atoms in  

E-Print Network [OSTI]

amplitudes of Si, AI, and 0 atoms in framework structures: Evidence for rigid bonds, order, twinning of the mean-square displacement amplitudes (MSDA) of the T(Al,Si) and 0 atoms in ordered framework silicates in these crystals are consistent with a rigid bond model. In particular, the MSDAs of the T and 0 atoms

Downs, Robert T.

423

Nucleotide-dependent displacement and dynamics of the ?-1 helix in kinesin revealed by site-directed spin labeling EPR  

SciTech Connect (OSTI)

Highlights: Dipolar EPR detects the distance between the spin-labeled kinesin ?-1 and ?-2 helices. The distance has at least two populations: 1.5 nm (in crystal form: 20%) and >2.5 nm. The short distance conformer was populated 40% in the apo state with microtubules. ATP analog or ADP binding caused the 1.5 nm distance to be less populated (?20%). The ?-1 helix moves closer to the neck-linker (away from ?-2) to facilitate docking. -- Abstract: In kinesin X-ray crystal structures, the N-terminal region of the ?-1 helix is adjacent to the adenine ring of the bound nucleotide, while the C-terminal region of the helix is near the neck-linker (NL). Here, we monitor the displacement of the ?-1 helix within a kinesin monomer bound to microtubules (MTs) in the presence or absence of nucleotides using site-directed spin labeling EPR. Kinesin was doubly spin-labeled at the ?-1 and ?-2 helices, and the resulting EPR spectrum showed dipolar broadening. The inter-helix distance distribution showed that 20% of the spins have a peak characteristic of 1.41.7 nm separation, which is similar to what is predicted from the X-ray crystal structure, albeit 80% were beyond the sensitivity limit (>2.5 nm) of the method. Upon MT binding, the fraction of kinesin exhibiting an inter-helix distance of 1.41.7 nm in the presence of AMPPNP (a non-hydrolysable ATP analog) and ADP was 20% and 25%, respectively. In the absence of nucleotide, this fraction increased to 4050%. These nucleotide-induced changes in the fraction of kinesin undergoing displacement of the ?-1 helix were found to be related to the fraction in which the NL undocked from the motor core. It is therefore suggested that a shift in the ?-1 helix conformational equilibrium occurs upon nucleotide binding and release, and this shift controls NL docking onto the motor core.

Yasuda, Satoshi; Yanagi, Takanori [Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043 (Japan)] [Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043 (Japan); Yamada, Masafumi D. [Division of Bioengineering, Graduate School of Engineering, Soka University, Hachioji, Tokyo 192-8577 (Japan)] [Division of Bioengineering, Graduate School of Engineering, Soka University, Hachioji, Tokyo 192-8577 (Japan); Ueki, Shoji [Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, Shido 1314-1, Samuki, Kagawa 769-2193 (Japan)] [Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, Shido 1314-1, Samuki, Kagawa 769-2193 (Japan); Maruta, Shinsaku [Division of Bioengineering, Graduate School of Engineering, Soka University, Hachioji, Tokyo 192-8577 (Japan)] [Division of Bioengineering, Graduate School of Engineering, Soka University, Hachioji, Tokyo 192-8577 (Japan); Inoue, Akio [Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043 (Japan)] [Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043 (Japan); Arata, Toshiaki, E-mail: arata@bio.sci.osaka-u.ac.jp [Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043 (Japan)] [Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043 (Japan)

2014-01-17T23:59:59.000Z

424

FGF growth factor analogs  

DOE Patents [OSTI]

The present invention provides a fibroblast growth factor heparin-binding analog of the formula: ##STR00001## where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, X, Y and Z are as defined, pharmaceutical compositions, coating compositions and medical devices including the fibroblast growth factor heparin-binding analog of the foregoing formula, and methods and uses thereof.

Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY); Takahashi, Kazuyuki (Germantown, MD)

2012-07-24T23:59:59.000Z

425

FUTURE POWER GRID INITIATIVE GridOPTICSTM Power Networking,  

E-Print Network [OSTI]

FUTURE POWER GRID INITIATIVE GridOPTICSTM Power Networking, Equipment, and Technology (powerNET) Testbed OBJECTIVE A lot of interest in research, improvements, and testing surrounds the power grid to these activities. Specifically, » power system equipment is expensive and has a high knowledge barrier

426

Northwest Power and Conservation Council Fifth Northwest Power Plan  

E-Print Network [OSTI]

Northwest Power and Conservation Council Fifth Northwest Power Plan Statement of Basis and Purpose for the Fifth Power Plan and Response to Comments on the Draft Fifth Power Plan February 2005 #12;I. Background.........................................................................................................................................3 B. Developing the Fifth Power Plan

427

The Power of Non-Uniform Wireless Power  

E-Print Network [OSTI]

The Power of Non-Uniform Wireless Power ETH Zurich ­ Distributed Computing Group Magnus M-To-Interference-Plus-Noise Ratio (SINR) Formula Minimum signal- to-interference ratio Power level of sender u Path-loss exponent Noise Distance between two nodes Received signal power from sender Received signal power from all other

428

TEP Power Partners Project [Tucson Electric Power  

SciTech Connect (OSTI)

The Arizona Governors Office of Energy Policy, in partnership with Tucson Electric Power (TEP), Tendril, and Next Phase Energy (NPE), formed the TEP Power Partners pilot project to demonstrate how residential customers could access their energy usage data and third party applications using data obtained from an Automatic Meter Reading (AMR) network. The project applied for and was awarded a Smart Grid Data Access grant through the U.S. Department of Energy. The project participants goal for Phase I is to actively engage 1,700 residential customers to demonstrate sustained participation, reduction in energy usage (kWh) and cost ($), and measure related aspects of customer satisfaction. This Demonstration report presents a summary of the findings, effectiveness, and customer satisfaction with the 15-month TEP Power Partners pilot project. The objective of the program is to provide residential customers with energy consumption data from AMR metering and empower these participants to better manage their electricity use. The pilot recruitment goals included migrating 700 existing customers from the completed Power Partners Demand Response Load Control Project (DRLC), and enrolling 1,000 new participants. Upon conclusion of the project on November 19, 2013: ? 1,390 Home Area Networks (HANs) were registered. ? 797 new participants installed a HAN. ? Survey respondents are satisfied with the program and found value with a variety of specific program components. ? Survey respondents report feeling greater control over their energy usage and report taking energy savings actions in their homes after participating in the program. ? On average, 43 % of the participants returned to the web portal monthly and 15% returned weekly. ? An impact evaluation was completed by Opinion Dynamics and found average participant savings for the treatment period1 to be 2.3% of their household use during this period.2 In total, the program saved 163 MWh in the treatment period of 2013.

None

2013-11-19T23:59:59.000Z

429

Electric power annual 1992  

SciTech Connect (OSTI)

The Electric Power Annual presents a summary of electric utility statistics at national, regional and State levels. The objective of the publication is to provide industry decisionmakers, government policymakers, analysts and the general public with historical data that may be used in understanding US electricity markets. The Electric Power Annual is prepared by the Survey Management Division; Office of Coal, Nuclear, Electric and Alternate Fuels; Energy Information Administration (EIA); US Department of Energy. ``The US Electric Power Industry at a Glance`` section presents a profile of the electric power industry ownership and performance, and a review of key statistics for the year. Subsequent sections present data on generating capability, including proposed capability additions; net generation; fossil-fuel statistics; retail sales; revenue; financial statistics; environmental statistics; electric power transactions; demand-side management; and nonutility power producers. In addition, the appendices provide supplemental data on major disturbances and unusual occurrences in US electricity power systems. Each section contains related text and tables and refers the reader to the appropriate publication that contains more detailed data on the subject matter. Monetary values in this publication are expressed in nominal terms.

Not Available

1994-01-06T23:59:59.000Z

430

Foucault's Ethics of Power  

E-Print Network [OSTI]

cally remarks , there is no 'headquarters that presides over the rationality" of power (HSl 125). Rather, strategies of power are nonsubjective insofar as they arc anonymous and operate indepen dent ly of the part icular people who wil l ingly or unwi...Foucault's Ethics of Power Kirk Wolf Delia College 1. I n t r o d u c t i o n Since Foucaull 's death in 19K4, his interpreters have generally located his importance in his genealogical critiques and in his phi losophy ofpower. On the one hand...

Wolf, Kirk

431

Computational power of correlations  

E-Print Network [OSTI]

We study the intrinsic computational power of correlations exploited in measurement-based quantum computation. By defining a general framework the meaning of the computational power of correlations is made precise. This leads to a notion of resource states for measurement-based \\textit{classical} computation. Surprisingly, the Greenberger-Horne-Zeilinger and Clauser-Horne-Shimony-Holt problems emerge as optimal examples. Our work exposes an intriguing relationship between the violation of local realistic models and the computational power of entangled resource states.

Janet Anders; Dan E. Browne

2009-02-05T23:59:59.000Z

432

Power control system and method  

DOE Patents [OSTI]

A power system includes an energy harvesting device, a battery coupled to the energy harvesting device, and a circuit coupled to the energy harvesting device and the battery. The circuit is adapted to deliver power to a load by providing power generated by the energy harvesting device to the load without delivering excess power to the battery and to supplement the power generated by the energy harvesting device with power from the battery if the power generated by the energy harvesting device is insufficient to fully power the load. A method of operating the power system is also provided.

Steigerwald, Robert Louis (Burnt Hills, NY) [Burnt Hills, NY; Anderson, Todd Alan (Niskayuna, NY) [Niskayuna, NY

2008-02-19T23:59:59.000Z

433

Power control system and method  

DOE Patents [OSTI]

A power system includes an energy harvesting device, a battery coupled to the energy harvesting device, and a circuit coupled to the energy harvesting device and the battery. The circuit is adapted to deliver power to a load by providing power generated by the energy harvesting device to the load without delivering excess power to the battery and to supplement the power generated by the energy harvesting device with power from the battery if the power generated by the energy harvesting device is insufficient to fully power the load. A method of operating the power system is also provided.

Steigerwald, Robert Louis; Anderson, Todd Alan

2006-11-07T23:59:59.000Z

434

ESTIMATION OF CRACK-ARREST TOUGHNESS TRANSITION AND NDT TEMPERATURES FROM CHARPY FORCE-DISPLACEMENT IMPACT TRACES  

SciTech Connect (OSTI)

A force-displacement trace of a Charpy impact test of a reactor pressure vessel (RPV) steel in the transition range has a characteristic point, the so-called force at the end of unstable crack propagation , Fa. A two-parameter Weibull probability function is used to model the distribution of the Fa in Charpy tests performed at ORNL on different RPV steels in the unirradiated and irradiated conditions. These data have a good replication at a given test temperature, thus, the statistical analysis was applicable. It is shown that when temperature is normalized to TNDT (T-TNDT) or to T100a (T-T100a), the median Fa values of different RPV steels have a tendency to form the same shape of temperature dependence. Depending on normalization temperature, TNDT or T100a, it suggests a universal shape of the temperature dependence of Fa for different RPV steels. The best fits for these temperature dependencies are presented. These dependencies are suggested for use in estimation of NDT or T100a from randomly generated Charpy impact tests. The maximum likelihood methods are used to derive equations to estimate TNDT and T100a from randomly generated Charpy impact tests.

Sokolov, Mikhail A [ORNL

2010-01-01T23:59:59.000Z

435

Power-aware applications for scientific cluster and distributed computing  

E-Print Network [OSTI]

The aggregate power use of computing hardware is an important cost factor in scientific cluster and distributed computing systems. The Worldwide LHC Computing Grid (WLCG) is a major example of such a distributed computing system, used primarily for high throughput computing (HTC) applications. It has a computing capacity and power consumption rivaling that of the largest supercomputers. The computing capacity required from this system is also expected to grow over the next decade. Optimizing the power utilization and cost of such systems is thus of great interest. A number of trends currently underway will provide new opportunities for power-aware optimizations. We discuss how power-aware software applications and scheduling might be used to reduce power consumption, both as autonomous entities and as part of a (globally) distributed system. As concrete examples of computing centers we provide information on the large HEP-focused Tier-1 at FNAL, and the Tigress High Performance Computing Center at Princeton U...

Abdurachmanov, David; Eulisse, Giulio; Grosso, Paola; Hillegas, Curtis; Holzman, Burt; Klous, Sander; Knight, Robert; Muzaffar, Shahzad

2014-01-01T23:59:59.000Z

436

POWER CENTRALIZED SEMIGROUPS PRIMOZ MORAVEC  

E-Print Network [OSTI]

POWER CENTRALIZED SEMIGROUPS PRIMOZ MORAVEC Abstract. A semigroup is said to be power centralized if for every pair of elements x and y there exists a power of x commuting with y. The structure of power centralized groups and semigroups is investigated. In particular, we characterize 0-simple power centralized

437

High Power, Linear CMOS Power Amplifier for WLAN Applications /  

E-Print Network [OSTI]

Tracking OFDM Power Amplier, IEEE Journal of Solid-StateGSM/GPRS CMOS Power Ampli?er, IEEE Journal of Solid-StateEnded Switching Power Ampli?es, IEEE Journal of Solid-State

Afsahi, Ali

2013-01-01T23:59:59.000Z

438

Wind Power in Alaska  

Broader source: Energy.gov [DOE]

In the past few years wind power has become more and more prevalent across Alaska, with big turbines sprouting up in all parts of the state. Sponsored by the Renewable Energy Alaska Project, event...

439

Pig Poop Power  

E-Print Network [OSTI]

Broadcast Transcript: What could be more fitting in the Year of the Pig than to turn to the pig for power? And that's what is happening here in South Korea. In an effort to develop environmentally friendly, renewable energy ...

Hacker, Randi; Tsutsui, William

2007-04-11T23:59:59.000Z

440

Mesofluidic magnetohydrodynamic power generation  

E-Print Network [OSTI]

Much of the previous research into magnetohydrodynamics has involved large-scale systems. This thesis explores the miniaturization and use of devices to convert the power dissipated within an expanding gas flow into ...

Fucetola, Jay J

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

Glucose-powered neuroelectronics  

E-Print Network [OSTI]

A holy grail of bioelectronics is to engineer biologically implantable systems that can be embedded without disturbing their local environments, while harvesting from their surroundings all of the power they require. As ...

Rapoport, Benjamin Isaac

2011-01-01T23:59:59.000Z

442

Renewable Power Procurement Policy  

Broader source: Energy.gov [DOE]

New York Governor George Pataki signed Executive Order No. 111 to promote "Green and Clean" State Buildings and Vehicles on June 10, 2001. The renewable-power procurement component of this order...

443

Bonneville Power Administration  

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

http:www.bpa.gov PR 02 14 BONNEVILLE POWER ADMINISTRATION FOR IMMEDIATE RELEASE Thursday, Jan. 23, 2014 CONTACT: Kevin Wingert, 503-230-4140971-207-8390 or 503-230-5131 BPA...

444

The power tool  

SciTech Connect (OSTI)

POWER Tool--Planning, Optimization, Waste Estimating and Resourcing tool, a hand-held field estimating unit and relational database software tool for optimizing disassembly and final waste form of contaminated systems and equipment.

HAYFIELD, J.P.

1999-02-01T23:59:59.000Z

445

Bonneville Power Administration  

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

In reply refer to: PGP Ms. Renata Kurshner Manager, Generation Resource Management, BC Hydro and Power Authority 6911 Southpoint Drive, Tower 15 Burnaby, BC V3N 4X8 Dear Ms....

446

Bonneville Power Administration  

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

In reply refer to: PGPO Renata Kurschner Director, Generation Resource Management BC Hydro and Power Authority 691 1 Southpoint Drive, El5 Burnaby, B.C., Canada V3N 4 x 8 Dear...

447

Structural power flow measurement  

SciTech Connect (OSTI)

Previous investigations of structural power flow through beam-like structures resulted in some unexplained anomalies in the calculated data. In order to develop structural power flow measurement as a viable technique for machine tool design, the causes of these anomalies needed to be found. Once found, techniques for eliminating the errors could be developed. Error sources were found in the experimental apparatus itself as well as in the instrumentation. Although flexural waves are the carriers of power in the experimental apparatus, at some frequencies longitudinal waves were excited which were picked up by the accelerometers and altered power measurements. Errors were found in the phase and gain response of the sensors and amplifiers used for measurement. A transfer function correction technique was employed to compensate for these instrumentation errors.

Falter, K.J.; Keltie, R.F.

1988-12-01T23:59:59.000Z

448

Wind Power Today  

SciTech Connect (OSTI)

Wind Power Today is an annual publication that provides an overview of the wind energy research conducted by the U.S. Department of Energy Wind and Hydropower Technologies Program.

Not Available

2006-05-01T23:59:59.000Z

449

Wind Power Today  

SciTech Connect (OSTI)

Wind Power Today is an annual publication that provides an overview of the wind energy research conducted by the U.S. Department of Energy Wind and Hydropower Technologies Program.

Not Available

2007-05-01T23:59:59.000Z

450

Power Quality Implications  

E-Print Network [OSTI]

Electric utilities in the United States spend in excess of one billion dollars annually to maintain or improve the quality of electric power supplied to their customers. Yet, an increasing and alarming number of complaints are being voiced...

Hilson, D.

451

PowerPoint Presentation  

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

Island Bus NaS Battery Energy Storage Project U.S. DOE Peer Review Seattle, WA October 8, 2009 Steve Eckroad Electric Power Research Institute Seckroad@epri.com (704) 595-2717 2 ...

452

Crowd-powered systems  

E-Print Network [OSTI]

Crowd-powered systems combine computation with human intelligence, drawn from large groups of people connecting and coordinating online. These hybrid systems enable applications and experiences that neither crowds nor ...

Bernstein, Michael Scott

2012-01-01T23:59:59.000Z

453

Power Plant Dams (Kansas)  

Broader source: Energy.gov [DOE]

This act states the provisions for erection and maintenance of dams. When any person, corporation or city may be desirous of erecting and maintaining a milldam or dam for generating power across...

454

PowerPoint Presentation  

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

* No cold or centrifugation steps * Power draw is minimal RNA Prep Module: Digital Microfluidics (DMF) with Macro-to-Micro Fluidic Interface Jebrail MJ et al., Anal Chem 86:3856...

455

NSTX Electrical Power Systems  

SciTech Connect (OSTI)

The National Spherical Torus Experiment (NSTX) has been designed and installed in the existing facilities at Princeton Plasma Physic 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. The design of the NSTX electrical power system was tailored to suit the available infrastructure and electrical equipment on site. Components were analyzed to verify their suitability for use in NSTX. The total number of circuits and the location of the NSTX device drove the major changes in the Power system hardware. The NSTX has eleven (11) circuits to be fed as compared to the basic three power loops for TFTR. This required changes in cabling to insure that each cable tray system has the positive and negative leg of cables in the same tray. Also additional power cabling had to be installed to the new location. The hardware had to b e modified to address the need for eleven power loops. Power converters had to be reconnected and controlled in anti-parallel mode for the Ohmic heating and two of the Poloidal Field circuits. The circuit for the Coaxial Helicity Injection (CHI) System had to be carefully developed to meet this special application. Additional Protection devices were designed and installed for the magnet coils and the CHI. The thrust was to making the changes in the most cost-effective manner without compromising technical requirements. This paper describes the changes and addition to the Electrical Power System components for the NSTX magnet systems.

A. Ilic; E. Baker; R. Hatcher; S. Ramakrishnan; et al

1999-12-16T23:59:59.000Z

456

Anisotropic Power Law Strain Correlations in Sheared Amorphous 2D Solids  

SciTech Connect (OSTI)

The local deformation of steadily sheared two-dimensional Lennard-Jones glasses is studied via computer simulations at zero temperature. In the quasistatic limit, spatial correlations in the incremental strain field are highly anisotropic. The data show power law behavior with a strong angular dependence of the scaling exponent, and the strongest correlations along the directions of maximal shear stress. These results support the notion that the jamming transition at the onset of flow is critical, but suggest unusual critical behavior. The predicted behavior is testable through experiments on sheared amorphous materials such as bubble rafts, foams, emulsions, granular packings, and other systems where particle displacements can be tracked.

Maloney, C. E. [Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States); Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218 (United States); Robbins, M. O. [Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218 (United States)

2009-06-05T23:59:59.000Z

457

Integration of wind power in deregulated power systems.  

E-Print Network [OSTI]

??This thesis investigates the impact of integrating wind power into deregulated power systems. It includes a discussion of the history of deregulation and the development (more)

Scorah, Hugh

2010-01-01T23:59:59.000Z

458

Microsoft PowerPoint - Vicksburg District Federal Power Projects...  

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

Federal Power Projects Vicksburg District Federal Power Projects Blakely Mountain Hydro DeGray Hydro DeGray Hydro Narrows Hydro Blakely Mountain Rewind Unit 1 ll Rotor...

459

Multi-factor authentication  

DOE Patents [OSTI]

Detection and deterrence of spoofing of user authentication may be achieved by including a cryptographic fingerprint unit within a hardware device for authenticating a user of the hardware device. The cryptographic fingerprint unit includes an internal physically unclonable function ("PUF") circuit disposed in or on the hardware device, which generates a PUF value. Combining logic is coupled to receive the PUF value, combines the PUF value with one or more other authentication factors to generate a multi-factor authentication value. A key generator is coupled to generate a private key and a public key based on the multi-factor authentication value while a decryptor is coupled to receive an authentication challenge posed to the hardware device and encrypted with the public key and coupled to output a response to the authentication challenge decrypted with the private key.

Hamlet, Jason R; Pierson, Lyndon G

2014-10-21T23:59:59.000Z

460

Displaced capillary dies  

DOE Patents [OSTI]

An asymmetrical shaped capillary die made exclusively of graphite is used to grow silicon ribbon which is capable of being made into solar cells that are more efficient than cells produced from ribbon made using a symmetrically shaped die.

Kalejs, Juris P. (Wellesley, MA); Chalmers, Bruce (Falmouth, MA); Surek, Thomas (Englewood, CO)

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "displacement power factor" 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

Displaced capillary dies  

DOE Patents [OSTI]

An asymmetrical shaped capillary die made exclusively of graphite is used to grow silicon ribbon which is capable of being made into solar cells that are more efficient than cells produced from ribbon made using a symmetrically shaped die.

Kalejs, Juris P. (Wellesley, MA); Chalmers, Bruce (Falmouth, MA); Surek, Thomas (Englewood, CO)

1984-01-01T23:59:59.000Z

462

Operational benefits of relaxed axial power distribution control limits  

SciTech Connect (OSTI)

Constant axial offset control (CAOC) was developed in the early 1970s in response to lower loss-of-coolant accident-based peaking factor limits. Th CAOC requires control of the axial power distribution within a specified band, typically +/- 5% or +3, -12% axial flux difference (AFD), about a measured target value of AFD. Operational outside of the CAOC limits results in the accumulation of penalty time. One hour of penalty time in any 24-h period is permitted. Although CAOC is sufficient to ensure peaking factor limits are satisfied, operation outside of CAOC limits is beneficial under certain conditions. Allowing a relaxation in CAOC restrictions can be used both to enhance the load follow capability of the plant by allowing control strategies that minimize the boron system duty or increase the return to power capability and to greatly increase the ability to return to power after a plant trip or shutdown. To achieve these benefits, relaxed axial offset control (RAOC) was developed. Other benefits of RAOC include a simplified technical specification and the ability to perform in-core/ex-core calibrations at higher powers. Duke Power Company has benefited in many of these ways by changing from CAOC power distribution limits to RAOC power distribution limits at the McGuire Nuclear Station. One of the chief benefits has been the ability to achieve full power much more quickly following shutdowns of short duration and reactor trips during the last half of the cycle lifetime.

Kitlan, M.S. Jr.; Miller, R.W.

1987-01-01T23:59:59.000Z

463

Aging management of containment structures in nuclear power plants  

SciTech Connect (OSTI)

Research is being conducted by ORNL under US Nuclear Regulatory Commission (USNRC) sponsorship to address aging management of nuclear power plant containment and other safety-related structures. Documentation is being prepared to provide the USNRC with potential structural safety issues and acceptance criteria for use in continued service evaluations of nuclear power plants. Accomplishments include development of a Structural Materials Information Center containing data and information on the time variation of 144 material properties under the influence of pertinent environmental stressors or aging factors, evaluation of models for potential concrete containment degradation factors, development of a procedure to identify critical structures and degradation factors important to aging management, evaluations of nondestructive evaluation techniques. assessments of European and North American repair practices for concrete, review of parameters affecting corrosion of metals embedded in concrete, and development of methodologies for making current condition assessments and service life predictions of new or existing reinforced concrete structures in nuclear power plants.

Naus, D.J.; Oland, C.B. [Oak Ridge National Lab., TN (United States); Ellingwood, B.R. [The Johns Hopkins Univ., Baltimore, MD (United States); Graves, H.L. III; Norris, W.E. [US Nuclear Regulatory Commission, Washington, DC (United States)

1994-12-31T23:59:59.000Z

464

Line asymmetry of solar p-modes: Reversal of asymmetry in intensity power spectra  

E-Print Network [OSTI]

The sense of line asymmetry of solar p-modes in the intensity power spectra is observed to be opposite of that seen in the velocity power spectra. Theoretical calculations provide a good understanding and fit to the observed velocity power spectra whereas the reverse sense of asymmetry in the intensity power spectrum has been poorly understood. We show that when turbulent eddies arrive at the top of the convection zone they give rise to an observable intensity fluctuation which is correlated with the oscillation they generate, thereby affecting the shape of the line in the p-mode power spectra and reversing the sense of asymmetry (this point was recognized by Nigam et al. and Roxburgh & Vorontsov). The addition of the correlated noise displaces the frequencies of peaks in the power spectrum. Depending on the amplitude of the noise source the shift in the position of the peak can be substantially larger than the frequency shift in the velocity power spectra. In neither case are the peak frequencies precisely equal to the eigenfrequencies of p-modes. We suggest two observations which can provide a test of the model discussed here.

Pawan Kumar; Sarbani Basu

1998-08-13T23:59:59.000Z

465

Nuclear Power Generating Facilities (Maine)  

Broader source: Energy.gov [DOE]

The first subchapter of the statute concerning Nuclear Power Generating Facilities provides for direct citizen participation in the decision to construct any nuclear power generating facility in...

466

SiC Power Module  

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

energy from renewable sources (i.e., solar arrays or wind generators), and provide power for a wide variety of electronics and electronic systems (DC power supplies and...

467

Power network analysis and optimization  

E-Print Network [OSTI]

chip power supply network optimization using multigrid-basedchip decoupling capacitor optimization for high- performanceSapatnekar, Analysis and optimization of structured power/

Zhang, Wanping

2009-01-01T23:59:59.000Z

468

Factors Affecting Photosynthesis!  

E-Print Network [OSTI]

Factors Affecting Photosynthesis! Temperature Eppley (1972) Light Sverdrup's Critical Depth-493, but the general concept is still valid! ! #12;PB opt & Temperature! #12;Photosynthesis & Temperature! Remember: in the laboratory, we can measure photosynthesis versus irradiance (PvsE) and calculate Ek, Pmax, and alpha

Kudela, Raphael M.

469

Public Health FAT FACTORS  

E-Print Network [OSTI]

: THE UNITED STATES SPENDS MORE ON HEALTH CARE THAN ANY OTHER COUNTRY. YET WE CONTINUE TO FALL FAR BEHIND States spends an astonishing percent of our gross domestic product on health care--significantly moreColumbia Public Health HOT TOPIC Climate Change FAT FACTORS Obesity Prevention BOOK SMART

Qian, Ning

470

Performance of ECM controlled VAV fan powered terminal units  

E-Print Network [OSTI]

signal from low pass filter h Enthalpy HVAC Heating, Ventilation, & Air Conditioning IRMS RMS value of current (amps) ? ? m mass flow rate Piav Inlet air velocity differential pressure Pdown Downstream static pressure Punit... Static pressure inside terminal unit Pup Upstream static pressure Powerfan Power consumption of terminal unit fan PF Power Factor PSC Permanent Split Capacitor ? ? Q Change in heat input per unit time Qfan Amount of airflow through...

Cramlet, Andrew Charles

2009-05-15T23:59:59.000Z

471

High power connection system  

DOE Patents [OSTI]

A high power connection system adapted for automotive environments which provides environmental and EMI shielding includes a female connector, a male connector, and a panel mount. The female connector includes a female connector base and a snap fitted female connector cover. The male connector includes a male connector base and a snap fitted male connector cover. The female connector base has at least one female power terminal cavity for seatably receiving a respective female power terminal. The male connector base has at least one male power terminal cavity for seatably receiving a respective male power terminal. The female connector is covered by a cover seal and a conductive shroud. A pair of lock arms protrude outward from the front end of the male connector base, pass through the panel mount and interface with a lever of a lever rotatably connected to the shroud to thereby mechanically assist mating of the male and female connectors. Safety terminals in the male and female connectors provide a last-to-connect-first-to-break connection with an HVIL circuit.

Schaefer, Christopher E. (Warren, OH); Beer, Robert C. (Noblesville, IN); McCall, Mark D. (Youngstown, OH)

2000-01-01T23:59:59.000Z

472

Photonic-powered cable assembly  

DOE Patents [OSTI]

A photonic-cable assembly includes a power source cable connector ("PSCC") coupled to a power receive cable connector ("PRCC") via a fiber cable. The PSCC electrically connects to a first electronic device and houses a photonic power source and an optical data transmitter. The fiber cable includes an optical transmit data path coupled to the optical data transmitter, an optical power path coupled to the photonic power source, and an optical feedback path coupled to provide feedback control to the photonic power source. The PRCC electrically connects to a second electronic device and houses an optical data receiver coupled to the optical transmit data path, a feedback controller coupled to the optical feedback path to control the photonic power source, and a photonic power converter coupled to the optical power path to convert photonic energy received over the optical power path to electrical energy to power components of the PRCC.

Sanderson, Stephen N.; Appel, Titus James; Wrye, IV, Walter C.

2013-01-22T23:59:59.000Z

473

Photonic-powered cable assembly  

DOE Patents [OSTI]

A photonic-cable assembly includes a power source cable connector ("PSCC") coupled to a power receive cable connector ("PRCC") via a fiber cable. The PSCC electrically connects to a first electronic device and houses a photonic power source and an optical data transmitter. The fiber cable includes an optical transmit data path coupled to the optical data transmitter, an optical power path coupled to the photonic power source, and an optical feedback path coupled to provide feedback control to the photonic power source. The PRCC electrically connects to a second electronic device and houses an optical data receiver coupled to the optical transmit data path, a feedback controller coupled to the optical feedback path to control the photonic power source, and a photonic power converter coupled to the optical power path to convert photonic energy received over the optical power path to electrical energy to power components of the PRCC.

Sanderson, Stephen N; Appel, Titus James; Wrye, IV, Walter C

2014-06-24T23:59:59.000Z

474

Final Report: Assessment of Combined Heat and Power Premium Power Applications in California  

E-Print Network [OSTI]

ASSESSMENT OF COMBINED HEAT AND POWER SYSTEM PREMIUM POWERAssessment of Combined Heat and Power Premium Power1 The Pacific Region Combined Heat and Power Application

Norwood, Zack

2010-01-01T23:59:59.000Z

475

Reducing Power Load Fluctuations on Ships Using Power Redistribution Control  

E-Print Network [OSTI]

controller is demonstrated through simulation studies on a supply vessel power plant, using the SIMULINK plant with electric propulsion, the power generation will con- sist of multiple engines, whereReducing Power Load Fluctuations on Ships Using Power Redistribution Control Damir Radan,1 Asgeir J

Johansen, Tor Arne

476

Sixth Power Plan northwest Power and Conservation Council  

E-Print Network [OSTI]

-Fired Generating Resources #12;Sixth Power Plan AssessMenT reporT Resource Adequacy 40Sixth Power Plan northwest Power and Conservation Council March 13, 2013 Mid-term assessment report #12;PaGe 2 > Mid-TerM AssessMenT reporT > Sixth Power Plan Contents 04 Executive Summary 06 Situation

477

Running Head: TESTOSTERONE AND POWER Testosterone and power  

E-Print Network [OSTI]

Running Head: TESTOSTERONE AND POWER Testosterone and power Steven J. Stanton and Oliver C. Schultheiss University of Michigan, Ann Arbor, MI, USA To appear in: K. Dowding (Ed.), Encyclopedia of power-647-9440, email: stantons@umich.edu #12;Testosterone and power 2 Across many studies in humans, two functional

Schultheiss, Oliver C.

478

Distributed Power Delivery for Energy Efficient and Low Power Systems  

E-Print Network [OSTI]

Distributed Power Delivery for Energy Efficient and Low Power Systems Selc¸uk K¨ose Department are needed to determine the location of these on-chip power supplies and decoupling capacitors. In this paper, the optimal location of the power supplies and decoupling capacitors is determined for different size

Friedman, Eby G.

479

Hawaii hydrogen power park Hawaii Hydrogen Power Park  

E-Print Network [OSTI]

. (Barrier R ­ Cost) Generate public interest & support. (Barrier S­Siting) #12;Hawaii hydrogen power park H Electrolyzer ValveManifold Water High Pressure H2 Storage Fuel Cell AC Power H2 Compressor Hydrogen Supply O2Hawaii hydrogen power park H Hawaii Hydrogen Power Park 2003 Hydrogen & Fuel Cells Merit Review

480

Power Plant Cycling Costs  

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

(say, a trip) and such factors are not fully captured in this dataset. 9. Older combined cycle units were a step change in lower operating costs due to cycling...

Note: This page contains sample records for the topic "displacement power factor" 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

Qualification for PowerInsight accuracy of power measurements.  

SciTech Connect (OSTI)

Accuracy of component based power measuring devices forms a necessary basis for research in the area of power-e cient and power-aware computing. The accuracy of these devices must be quanti ed within a reasonable tolerance. This study focuses on PowerInsight, an out- of-band embedded measuring device which takes readings of power rails on compute nodes within a HPC system in realtime. We quantify how well the device performs in comparison to a digital oscilloscope as well as PowerMon2. We show that the accuracy is within a 6% deviation on measurements under reasonable load.

DeBonis, David; Laros, James H.,; Pedretti, Kevin Thomas Tauke

2013-11-01T23:59:59.000Z

482

Fully relativistic form factor for Thomson scattering  

SciTech Connect (OSTI)

We derive a fully relativistic form factor for Thomson scattering in unmagnetized plasmas valid to all orders in the normalized electron velocity, beta->=v->/c. The form factor is compared to a previously derived expression where the lowest order electron velocity, beta->, corrections are included [J. Sheffield, Plasma Scattering of Electromagnetic Radiation (Academic Press, New York, 1975)]. The beta-> expansion approach is sufficient for electrostatic waves with small phase velocities such as ion-acoustic waves, but for electron-plasma waves the phase velocities can be near luminal. At high phase velocities, the electron motion acquires relativistic corrections including effective electron mass, relative motion of the electrons and electromagnetic wave, and polarization rotation. These relativistic corrections alter the scattered emission of thermal plasma waves, which manifest as changes in both the peak power and width of the observed Thomson-scattered spectra.

Palastro, J. P.; Ross, J. S.; Pollock, B.; Divol, L.; Froula, D. H.; Glenzer, S. H. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)

2010-03-15T23:59:59.000Z

483

Interested Parties - Xtreme Power | Department of Energy  

Energy Savers [EERE]

Xtreme Power Interested Parties - Xtreme Power 09-14-10XtremePower.pdf More Documents & Publications Interested Parties - XtremePower Interested Parties - Myriant Interested...

484

Power line detection system  

DOE Patents [OSTI]

A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard.

Latorre, Victor R. (Tracy, CA); Watwood, Donald B. (Tracy, CA)

1994-01-01T23:59:59.000Z

485

Power converter connection configuration  

DOE Patents [OSTI]

EMI shielding is provided for power electronics circuits and the like via a direct-mount reference plane support and shielding structure. The thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support forms a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

Beihoff, Bruce C. (Wauwatosa, WI); Kehl, Dennis L. (Milwaukee, WI); Gettelfinger, Lee A. (Brown Deer, WI); Kaishian, Steven C. (Milwaukee, WI); Phillips, Mark G. (Brookfield, WI); Radosevich, Lawrence D. (Muskego, WI)

2008-11-11T23:59:59.000Z

486

Power line detection system  

DOE Patents [OSTI]

A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard. 4 figs.

Latorre, V.R.; Watwood, D.B.

1994-09-27T23:59:59.000Z

487

Power Systems Control Architecture  

SciTech Connect (OSTI)

A diagram provided in the report depicts the complexity of the power systems control architecture used by the national power structure. It shows the structural hierarchy and the relationship of the each system to those other systems interconnected to it. Each of these levels provides a different focus for vulnerability testing and has its own weaknesses. In evaluating each level, of prime concern is what vulnerabilities exist that provide a path into the system, either to cause the system to malfunction or to take control of a field device. An additional vulnerability to consider is can the system be compromised in such a manner that the attacker can obtain critical information about the system and the portion of the national power structure that it controls.

James Davidson

2005-01-01T23:59:59.000Z

488

Powered protrusion cutter  

DOE Patents [OSTI]

An apparatus for clipping a protrusion of material is provided. The protrusion may, for example, be a bolt head, a nut, a rivet, a weld bead, or a temporary assembly alignment tab protruding from a substrate surface of assembled components. The apparatus typically includes a cleaver having a cleaving edge and a cutting blade having a cutting edge. Generally, a mounting structure configured to confine the cleaver and the cutting blade and permit a range of relative movement between the cleaving edge and the cutting edge is provided. Also typically included is a power device coupled to the cutting blade. The power device is configured to move the cutting edge toward the cleaving edge. In some embodiments the power device is activated by a momentary switch. A retraction device is also generally provided, where the retraction device is configured to move the cutting edge away from the cleaving edge.

Bzorgi, Fariborz M. (Knoxville, TN)

2010-03-09T23:59:59.000Z

489

Power Systems Development Facility  

SciTech Connect (OSTI)

In support of technology development to utilize coal for efficient, affordable, and environmentally clean power generation, the Power Systems Development Facility (PSDF), located in Wilsonville, Alabama, has routinely demonstrated gasification technologies using various types of coals. The PSDF is an engineering scale demonstration of key features of advanced coal-fired power systems, including a Transport Gasifier, a hot gas particulate control device, advanced syngas cleanup systems, and high-pressure solids handling systems. This final report summarizes the results of the technology development work conducted at the PSDF through January 31, 2009. Twenty-one major gasification test campaigns were completed, for a total of more than 11,000 hours of gasification operation. This operational experience has led to significant advancements in gasification technologies.

Southern Company Services

2009-01-31T23:59:59.000Z

490

Twisted mass QCD for the pion electromagnetic form factor  

SciTech Connect (OSTI)

The pion form factor is computed using quenched twisted mass QCD and the GMRES-DR matrix inverter. The momentum averaging procedure of Frezzotti and Rossi is used to remove leading lattice spacing artifacts, and numerical results for the form factor show the expected improvement with respect to the standard Wilson action. Although some matrix inverters are known to fail when applied to twisted mass QCD, GMRES-DR is found to be a viable and powerful option. Results obtained for the pion form factor are consistent with the published results from other O(a) improved actions and are also consistent with the available experimental data.

Abdel-Rehim, Abdou M.; Lewis, Randy [Department of Physics, University of Regina, Regina, Saskatchewan, S4S 0A2 (Canada)

2005-01-01T23:59:59.000Z

491

Immiscible displacement of viscositymatched fluids in twodimensional porous media Olav Inge Frette, Knut Jo'' rgen Ma lo'' y, and Jean Schmittbuhl*  

E-Print Network [OSTI]

to the viscous effects. @S1063651X~96!05012X# PACS number~s!: 47.55.Mh, 05.40.1j, 47.55.Kf I. INTRODUCTIONphase flow in a porous medium is also of large practical importance in secondary oil recovery. In this paper a lower viscosity than the displaced fluid, the situation is highly unstable and ramified viscous fingers

Schmittbuhl, Jean

492

Power Generation and Power Use Decisions in an Industrial Process  

E-Print Network [OSTI]

of power generation and power use economics, most people want to under stand power generation. The primary questions usually relate to increasing the amount of power available, starting with a high pressure steam turbine or a gas turbine. They are "How... pressure Tsink OF temperature corresponding to outlet pressure Qsource = steam flow in Btu per hour Wideal Ideal power produced in Btu per hour 460 Conversion to absolute tempera ture "R From here, knowing the efficiency of the turbine...

Gilbert, J. S.; Niess, R. C.

493

Power electronics cooling apparatus  

DOE Patents [OSTI]

A semiconductor cooling arrangement wherein a semiconductor is affixed to a thermally and electrically conducting carrier such as by brazing. The coefficient of thermal expansion of the semiconductor and carrier are closely matched to one another so that during operation they will not be overstressed mechanically due to thermal cycling. Electrical connection is made to the semiconductor and carrier, and a porous metal heat exchanger is thermally connected to the carrier. The heat exchanger is positioned within an electrically insulating cooling assembly having cooling oil flowing therethrough. The arrangement is particularly well adapted for the cooling of high power switching elements in a power bridge.

Sanger, Philip Albert (Monroeville, PA); Lindberg, Frank A. (Baltimore, MD); Garcen, Walter (Glen Burnie, MD)

2000-01-01T23:59:59.000Z

494

Power electronics cooling apparatus  

SciTech Connect (OSTI)

A semiconductor cooling arrangement wherein a semiconductor is affixed to a thermally and electrically conducting carrier such as by brazing. The coefficient of thermal expansion of the semiconductor and carrier are closely matched to one another so that during operation they will not be overstressed mechanically due to thermal cycling. Electrical connection is made to the semiconductor and carrier, and a porous metal heat exchanger is thermally connected to the carrier. The heat exchanger is positioned within an electrically insulating cooling assembly having cooling oil flowing therethrough. The arrangement is particularly well adapted for the cooling of high power switching elements in a power bridge.

Sanger, P.A.; Lindberg, F.A.; Garcen, W.

2000-01-18T23:59:59.000Z

495

Power Systems Engineering  

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

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496

PowerPoint Presentation  

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

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497

PowerPoint Presentation  

Office of Environmental Management (EM)

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498

PowerPoint Presentation  

Office of Environmental Management (EM)

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499

PowerPoint Presentation  

Office of Environmental Management (EM)

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500

PowerPoint Presentation  

Office of Environmental Management (EM)

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