Powered by Deep Web Technologies
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.


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)

ICEBO2006, Shenzhen, China Maximize Comfort: Temperature, Humidity and IAQ Vol.I-7-2 Key Factors in Displacement Ventilation Systems for Better IAQ1 Xiaotong Wang Junjun Chen Yike Li Zhiwei Wang Associate Professor...

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

Optimizing Power Factor Correction  

E-Print Network (OSTI)

studied were 100, 150, 200, 300, 400, and 500 hours times each value of KW. The values of the capacitor cost parameters B and D were chosen to cover the range of costs suggested by capacitor suppliers and an electrical contractor. The values for B... plots correspond Power Factor Range: 0.5 to 1.0. to values of KW and KWH as shown in Fig. 5. The Figure 6; B ? $1,500; D ? $15 per kV I\\R. values of KWH are the products of the KW's and the hours. KWH/KII, hr 100 150 200 300 400 500 KII, kll...

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

6

The influence of lateral foot displacement on cycling efficiency and maximal cycling power.  

E-Print Network (OSTI)

??HARPER, SARA A., M.S., May 2014Exercise PhysiologyTHE INFLUENCE OF LATERAL PEDAL DISPLACEMENT ON CYCLING EFFICIENCY AND MAXIMAL CYCLING POWER (27 pp.)Director of Thesis: John McDaniel, (more)

Harper, Sara Anne

2014-01-01T23:59:59.000Z

7

Industrial Power Factor Analysis Guidebook.  

SciTech Connect

Power 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 electrical current is out of phase with the voltage. Reactive power is used by inductive loads (such as, motors, transformers, fluorescent lights, arc welders and induction furnaces) to sustain their magnetic fields. Electric systems with many motors exhibit low power factors, increased conductor and transformer losses, and lower voltages. Utilities must supply both active and reactive power and compensate for these losses. Power factor can be improved by the addition of shunt capacitors. Capacitors act in opposition to inductive loads, thereby minimizing the reactive power required to serve them. In raising the power factor, shunt capacitors release energy to the system, reduce system losses, and ultimately decrease power costs. Improving system power factor can reduce reactive and active power losses for both industry and utilities through the addition of shunt capacitors. This Guide Book gives electric utility technical staff, industrial end-users, consultants and BPA employees a step-by-step method for evaluating the cost effectiveness of installing power factor correction capacitors in an industrial plant.

Electrotek Concepts.

1995-03-01T23:59:59.000Z

8

Reducing Power Factor Cost | Department of Energy  

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

Power Factor Cost Reducing Power Factor Cost Low power factor is expensive and inefficient. Many utility companies charge an additional fee if your power factor is less than 0.95....

9

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.

10

Stable relativistic/charge-displacement channels in ultrahigh power density (?1021 W/cm3) plasmas  

Science Journals Connector (OSTI)

...mankind with an origin that predates the Stone Age. From the use of a wooden club to the contemporary production of vigorous thermonuclear environments, the achievable power density (W/cm 3 ) has been advanced by approximately a factor of 20 orders of magnitude...

A. B. Borisov; J. W. Longworth; K. Boyer; C. K. Rhodes

1998-01-01T23:59:59.000Z

11

The joint probability distributions of structure-factor doublets in displacive incommensurately modulated structures and their applicability to direct methods  

Science Journals Connector (OSTI)

The joint probability distribution of the phase sum of two first-order satellite reflections in structures with an incommensurately displacive modulation is derived under the assumption that the phase of the associated main reflection can be calculated from the known main (or averaged) structure. The functional (dis-)similarities with conventional direct methods, employing normalized structure factors and the Cochran distribution, are assessed and test results are presented showing a significant improvement of the direct-methods phase-sum statistics when the new distribution is used.

Peschar, R.

2001-06-21T23:59:59.000Z

12

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

E-Print Network (OSTI)

Displacement ventilation (DV) is a promising ventilation concept due to its high ventilation efficiency. In this paper, the application of the CFD method, the velocity and temperature fields of three-dimensional displacement ventilation systems...

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

2006-01-01T23:59:59.000Z

13

Stable relativistic/charge-displacement channels in ultrahigh power density (?1021 W/cm3) plasmas  

Science Journals Connector (OSTI)

...the contemporary production of vigorous thermonuclear environments, the achievable power density...acceleration, and the fast ignition of fusion targets. The key to the...Rhodes C K ( 1995 ) Plasma Phys Control Fusion 37 : 569 597 . 2 Borisov A B Borovskiy...

A. B. Borisov; J. W. Longworth; K. Boyer; C. K. Rhodes

1998-01-01T23:59:59.000Z

14

Simulation of a Wireless Power Transfer System for Electric Vehicles with Power Factor Correction  

SciTech Connect

Wireless power transfer has been a popular topic of recent research. Most research has been done to address the limitations of coil-to-coil efficiency. However, little has been done to address the problem associated with the low input power factor with which the systems operate. This paper details the steps taken to analyze a wireless power transfer system from the view of the power grid under a variety of loading conditions with and without power factor correction.

Pickelsimer, Michael C [ORNL; Tolbert, Leon M [ORNL; Ozpineci, Burak [ORNL; Miller, John M [ORNL

2012-01-01T23:59:59.000Z

15

Public opinion factors regarding nuclear power  

SciTech Connect

This paper is an effort to identify, as comprehensively as possible, public concerns about nuclear power, and to assess, where possible, the relative importance of these concerns as they relate to government regulation of and policy towards nuclear power. It is based on some two dozen in-depth interviews with key communicators representing the nuclear power industry, the environmental community, and government, as well as on the parallel efforts in our research project: (1) review of federal court case law, (2) a selective examination of the Nuclear Regulatory Commission (NRC) administrative process, and (3) the preceding George Mason University research project in this series. The paper synthesizes our findings about public attitudes towards nuclear power as expressed through federal court case law, NRC administrative law, public opinion surveys, and direct personal interviews. In so doing, we describe the public opinion environment in which the nuclear regulatory process must operate. Our premise is that public opinion ultimately underlies the approaches government agencies take towards regulating nuclear power, and that, to the degree that the nuclear power industry's practices are aligned with public opinion, a more favorable regulatory climate is possible.

Benson, B.

1991-01-01T23:59:59.000Z

16

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...

17

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.

18

Power factor and harmonic distortion characteristics of energy efficient lamps  

SciTech Connect

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

19

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

Office of Scientific and Technical Information (OSTI)

ORNL/CP-97155 ORNL/CP-97155 Instantaneous Reactive Power and Power Factor of Instantaneous Phasor s ' 4 . L;/, Oak Ridge National Laboratory* P f Senior Member &Eb "'ii Lf/ .. John S. Hsu 4- p d Post Office Box 2009, MS 8038 Oak Ridge, Tennessee 3783 1-8038 Key wordr: Instantaneous reactive power, Symmetrical property, Instantaiteous phasors, Phasors of one phase, n r e e phases. Abstract The unique property of instantaneous phasors is that at any instant the instantaneous three-phase currents and voltages can be represented by a set of balanced phasors. The instantaneous reactive power and the concept of instantaneous power factor can be clearly understood from the instantaneous phasors. This provides a theoretical foundation for power quality monitoring, diagnostics,

20

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

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

Displacer for Stirling engine  

SciTech Connect

In a Stirling engine and the like, a displacer piston having a plurality of internal baffles and insulation so as to prevent undesired heat transfer across the displacer piston.

Brown, A. T.

1985-12-24T23:59:59.000Z

22

Displacement Mechanism of Polymer Flooding by Molecular  

Science Journals Connector (OSTI)

Whether polymer flooding can enhance displacement efficiency or not is still a problem under debate. Laboratory experiment, numerical simulation and core data analysis are the commonly used means to study polymer flooding displacement efficiency. We discuss the limitations of these methods and employ molecular tribology to study the problem. The blackwhite ball action principle, i.e. the atom action model for describing the friction principle, is used to analyse the microscopic mechanism of oil displacement and describe the molecular interactions and displacement power during polymer flooding. Both tribology theory and dynamic rheological test show that molecular interactions during polymer flooding are bigger than that during water flooding. It is concluded that displacement efficiency of water flooding may be higher than that of polymer flooding at particular area; while polymer flooding can weaken the heterogeneity significantly, decrease ineffective injection and enhance the total displacement efficiency.

Yang Er-Long; Song Kao-Ping

2006-01-01T23:59:59.000Z

23

Factors driving wind power development in the United States  

E-Print Network (OSTI)

about 1.3 MW of Iowa wind power to supply its Second Natureuse a portion of the wind power to supply customers whosupplies wholesale wind power to four Colorado utilities,

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

2003-01-01T23:59:59.000Z

24

SciTech Connect: Industrial Power Factor Analysis Guidebook.  

Office of Scientific and Technical Information (OSTI)

of reactive power in an electrical system. Reactive power represents wasted energy--electricity that does no useful work because the electrical current is out of phase with...

25

Power Factor correction capacitors for utilising power consumption in industrial plants  

Science Journals Connector (OSTI)

Installation of capacitor banks proved to be cost effective approach to correct power factor in industrial plants. Optimum capacitance value that contributes to the maximum PF improvement varies from one system to another. Such value depends on the existing electrical system within the industrial plant. This paper provides industrial plants operators an optimisation model to correct and improve PF. This paper is supported by using both MATLAB programming and iteration loop technique. The Jordanian Petroleum Refinery Company is taken as a case study. Results indicate that PF improvement reached almost unity PF for this case, which yields to a reduction in the overall electricity bill.

Osama M. Aloquili; Nazih M. Abu-Shikhah

2010-01-01T23:59:59.000Z

26

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

27

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

28

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

29

Effect of nanoparticle scattering on thermoelectric power factor Mona Zebarjadi,1,a  

E-Print Network (OSTI)

Effect of nanoparticle scattering on thermoelectric power factor Mona Zebarjadi,1,a Keivan of nanoparticles on the thermoelectric power factor is investigated using the relaxation time approximation. The partial-wave technique is used for calculating the nanoparticle scattering cross section exactly. We

30

Comparative Study of Power Factor Correction Converters For Single Phase Half-Bridge Inverters  

E-Print Network (OSTI)

, telecommunication systems and medical equipment to overcome disruptions in utility power such as outage, voltage sag are extremely sensitive to cost. On-line systems are preferred where a highly reliable un- interruptible powerComparative Study of Power Factor Correction Converters For Single Phase Half-Bridge Inverters Gui

Tolbert, Leon M.

31

Emission factor of mercury from coal-fired power stations  

Science Journals Connector (OSTI)

Mercury emission from coal-fired power stations, situated in Poland in the Silesian region ... mercury in the consumed coal and in combustion gas, used in this research, are described. ... the air from coal combu...

Wojciech Mniszek

1994-11-01T23:59:59.000Z

32

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

SciTech Connect

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

33

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

34

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

35

A Novel High-Power-Factor LED-Lamp Driver Based on a Single-Stage Power Conversion  

Science Journals Connector (OSTI)

This paper proposes a novel single-stage driver for supplying a T8-type light-emitting diode (LED) lamp with high power factor. The presented driver integrates a dual buck-boost converter with coupled inductors and a half-bridge series-resonant converter ... Keywords: converter, driver, light-emitting diode (LED)

Chun An Cheng, En Chih Chang, Ching Shien Tseng, Tsung Yuan Chung

2014-06-01T23:59:59.000Z

36

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

37

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

38

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

39

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

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

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

43

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

44

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.

45

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

E-Print Network (OSTI)

to the formation of quasi-bound states inside the nanoparticles, which strongly scatter carriers near these energy on various nanostructured materials for ther- moelectric energy conversion.6,7 The ErAs nanoparticles emResonant carrier scattering by core-shell nanoparticles for thermoelectric power factor enhancement

46

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

47

Robustness of a Neural Network Model for Power Peak Factor Estimation in Protection Systems  

SciTech Connect

This work presents results of robustness verification of artificial neural network correlations that improve the real time prediction of the power peak factor for reactor protection systems. The input variables considered in the correlation are those available in the reactor protection systems, namely, the axial power differences obtained from measured ex-core detectors, and the position of control rods. The correlations, based on radial basis function (RBF) and multilayer perceptron (MLP) neural networks, estimate the power peak factor, without faulty signals, with average errors between 0.13%, 0.19% and 0.15%, and maximum relative error of 2.35%. The robustness verification was performed for three different neural network correlations. The results show that they are robust against signal degradation, producing results with faulty signals with a maximum error of 6.90%. The average error associated to faulty signals for the MLP network is about half of that of the RBF network, and the maximum error is about 1% smaller. These results demonstrate that MLP neural network correlation is more robust than the RBF neural network correlation. The results also show that the input variables present redundant information. The axial power difference signals compensate the faulty signal for the position of a given control rod, and improves the results by about 10%. The results show that the errors in the power peak factor estimation by these neural network correlations, even in faulty conditions, are smaller than the current PWR schemes which may have uncertainties as high as 8%. Considering the maximum relative error of 2.35%, these neural network correlations would allow decreasing the power peak factor safety margin by about 5%. Such a reduction could be used for operating the reactor with a higher power level or with more flexibility. The neural network correlation has to meet requirements of high integrity software that performs safety grade actions. It is shown that the correlation is a very simple algorithm that can be easily codified in software. Due to its simplicity, it facilitates the necessary process of validation and verification. (authors)

Souza, Rose Mary G.P.; Moreira, Joao M.L. [Centro Tecnologico da Marinha em Sao Paulo - CTMSP, avenida Prof. Lineu Prestes, 2468 - Butanta, Sao Paulo (Brazil)

2006-07-01T23:59:59.000Z

48

Spatial dependence of the sheath power transmission factor in DIII-D  

SciTech Connect

The spatial dependence of the power transmission factor, d, associated with an ion-electron pair passing through the sheath at the DIII-D divertor plate has been determined by sweeping the edge plasma across Langmuir probe detectors. Our results show that d decreases from the classically expected value of eight near the low density edge of the scrape-off-layer plasma to values less than unity at the peak of the profile. 13 refs., 16 figs.

Futch, A.H.; Hill, D.N.; Porter, G.D. (Lawrence Livermore National Lab., CA (USA)); Matthews, G.F. (UKAEA Culham Lab., Abingdon (UK)); Buchenauer, D. (Sandia National Labs., Livermore, CA (USA))

1991-02-01T23:59:59.000Z

49

E-Print Network 3.0 - air displacement plethysmography Sample...  

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

Search Powered by Explorit Topic List Advanced Search Sample search results for: air displacement plethysmography Page: << < 1 2 3 4 5 > >> 1 Adler, Cieslewicz, Irvin...

50

Regenerative rotary displacer Stirling engine  

SciTech Connect

A few rotary displacer Stirling engines in which the displacer has one gas pocket space at one side and rotates in a main enclosed cylinder, which is heated from one side and cooled from opposite side without any regenerator, have been studied for some time by the authors. The authors tried to improve this engine by equipping it with a regenerator, because without a regenerator, pressure oscillation and efficiency are too small. Here, several types of regenerative rotary displacer piston Stirling engines are proposed. One is the contra-rotating tandem two disc type displacer engine using axial heat conduction through side walls or by heat pipes and another is a single disc type with circulating fluid regenerator or heat pipes. Stirling engines of this new rotary displacer type are thought to attain high speed. Here, experimental results of the original rotary displacer Stirling engine without a regenerator, and one contra-rotating tandem displacer engine with side wall regenerator by axial heat conduction are reported accompanied with a discussion of the results.

Isshiki, Naotsugu; Watanabe, Hiroichi [Nihon Univ. Tokyo (Japan); Raggi, L. [Waseda Univ., Tokyo (Japan); Isshiki, Seita; Hirata, Koichi

1996-12-31T23:59:59.000Z

51

Literature Review of Displacement Ventilation  

E-Print Network (OSTI)

) and Nielsen et al. (1988) showed the impact of supply diffusers whereby increasing the entrainment of room air can decrease the temperature gradient in the occupied zone. #0;? Two important parameters to evaluate the performance of displacement ventilation... of Ventilated Rooms, Oslo, Norway. Nielsen, P.V., Hoff, L., Pedersen, L.G. 1988. Displacement Ventilation by Different Types of Diffusers. Proceedings of the 9 th AIVC Conference, Warwick. Niu, J. 1994. Modeling of Cooled-Ceiling Air-Conditioning Systems Ph...

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

52

Clean Cities 2009 Petroleum Displacement Awards | Department...  

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

2009 Petroleum Displacement Awards Clean Cities 2009 Petroleum Displacement Awards 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review...

53

Clean Cities Regional Support & Petroleum Displacement Awards...  

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

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

54

Effects of neutral gas collisions on the power transmission factor at the divertor sheath  

SciTech Connect

We show that charge-exchange and other ion-neutral collisions can reduce the power transmission factor of the plasma sheath, thereby lowering the ion impact energy and target plate sputtering. The power transmission factor relates the heat flux reaching the divertor target to the of the surface: {Delta}= Q{sub surf}/n{sub e}T{sub e}C{sub s}. Experimental data from the DIII-D tokamak suggest that {Delta} could be as low as 2-3 near the region of peak divertor particle flux, instead of the 7-8 expected from usual sheath theory. Several effects combine to allow ion-neutral interactions to be important in the divertor plasma sheath. The shallow angle of incidence of the magnetic field (1--3{degree} in DIII-D) leads to the spatial extension of the sheath from approximately {pi}i {approx} 1 mm normal to the plate to several centimeters along the field lines. Ionization reduces the sheath potential, and collisions reduce the ion impact energy.

Futch, A.H.; Hill, D.N.; Jong, R.A.; Porter, G.D. [Lawrence Livermore National Lab., CA (United States); Matthews, G.F. [JET Joint Undertaking, Abingdon (United Kingdom); Buchenauer, D. [Sandia National Labs., Albuquerque, NM (United States)

1992-03-23T23:59:59.000Z

55

Effects of neutral gas collisions on the power transmission factor at the divertor sheath  

SciTech Connect

We show that charge-exchange and other ion-neutral collisions can reduce the power transmission factor of the plasma sheath, thereby lowering the ion impact energy and target plate sputtering. The power transmission factor relates the heat flux reaching the divertor target to the of the surface: [Delta]= Q[sub surf]/n[sub e]T[sub e]C[sub s]. Experimental data from the DIII-D tokamak suggest that [Delta] could be as low as 2-3 near the region of peak divertor particle flux, instead of the 7-8 expected from usual sheath theory. Several effects combine to allow ion-neutral interactions to be important in the divertor plasma sheath. The shallow angle of incidence of the magnetic field (1--3[degree] in DIII-D) leads to the spatial extension of the sheath from approximately [pi]i [approx] 1 mm normal to the plate to several centimeters along the field lines. Ionization reduces the sheath potential, and collisions reduce the ion impact energy.

Futch, A.H.; Hill, D.N.; Jong, R.A.; Porter, G.D. (Lawrence Livermore National Lab., CA (United States)); Matthews, G.F. (JET Joint Undertaking, Abingdon (United Kingdom)); Buchenauer, D. (Sandia National Labs., Albuquerque, NM (United States))

1992-03-23T23:59:59.000Z

56

Estimating carbon dioxide emission factors for the California electric power sector  

SciTech Connect

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

57

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

SciTech Connect

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

58

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

59

On the exergetic capacity factor of a wind solar power generation system  

Science Journals Connector (OSTI)

In the recent years, exergy analysis has become a very important tool in the evaluation of systems' efficiency. It aims on minimizing the energy related-system losses and therefore maximizing energy savings and helps society substantially to move towards sustainable development and cleaner production. In this paper, a detailed exergetic analysis aiming to identify the overall Exergetic Capacity Factor (ExCF) for a wind solar power generation system was done. ExCF, as a new parameter, can be used for better classification and evaluation of renewable energy sources (RES). All the energy and exergy characteristics of wind and solar energy were examined in order to identify the variables that affect the power output of the hybrid system. A validated open source PV optimization tool was also included in the analysis, It was shown that parameters as e.g. air density or tracking losses, low irradiation losses play a crucial role in identifying the real and net wind and solar power output while planning new renewable energy projects and in fact do play a significant role on the wind solar plant's overall exergetic efficiency. In specific, it was found that air density varies from site to site influencing productivity. A difference of 6.2% on the productivity because of the air density was calculated. The wind and solar potential around a mountainous area were studied and presented based on field measurements and simulations. Since the number and the size of RES projects, over the last few years, are continually increasing, and new areas are required, the basic idea behind this research, was not only to introduce ExCF, as a new evaluation index for RES, but also to investigate the combined use of wind and solar energy under the same area and the benefits coming out of this combination.

G. Xydis

2013-01-01T23:59:59.000Z

60

Displacement and segment linkage in fracture zones  

SciTech Connect

Fault zones and vein arrays are composed of overstepping and linked segments, so knowledge of segment evolution is crucial in understanding the development of zones. Displacement-distance profiles of faults and veins are used to study the development of segments and zones. Detailed mapping of normal and strike-slip faults allows comparison of the displacement-distance characteristics of faults both normal and parallel to the displacement vector, i.e. modes III and II propagation respectively. Similarly, vein width variations can be used to study mode I propagation. Displacement varies with distance along fractures, with zero displacement at fracture tips. Steep displacement gradients can occur where faults and extension fractures overstep because of displacement transfer between the segments. This displacement transfer is accommodated by relay and bridge structures. Overstepping fractures may link to form a single fracture with an irregular displacement-distance profile. A linkage point is often marked by a bend with a displacement minimum, where relay/bridge structures are preserved as normal drag. Displacement variations are also caused by fault bends, conjugate relationships and by lithological variations. As interaction between fractures increases, r/d[sub MAX] ratios tend to decrease (where r = the distance between the tip and the point of maximum displacement, and d[sub MAX] = maximum displacement). As a result of the interaction of fracture segments, fracture zones tend to have complex displacement-distance profiles.

Peacock, D.C.P.; Sanderson, D.J. (Univ. of Southampton (United Kingdom). Dept. of Geology)

1992-01-01T23:59:59.000Z

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.


61

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

SciTech Connect

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

62

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

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

802 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 19, NO. 2, MAY 2004 Role of Distribution Factors in Congestion  

E-Print Network (OSTI)

802 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 19, NO. 2, MAY 2004 Role of Distribution Factors reimbursement of the congestion charges incurred in the day-ahead market. The implementation of CRR re- quires, the PTDFs used for the CRR issuance may be different from those used in the day-ahead market due to changes

65

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

66

The neutron charge form factor and target analyzing powers from pol.3He(pol e,e'n)-scattering  

E-Print Network (OSTI)

The charge form factor of the neutron has been determined from asymmetries measured in quasi--elastic pol.3He(pol e,e'n) at a momentum transfer of 0.67(GeV/c)^2. In addition, the target analyzing power, A_y^o, has been measured to study effects of final state interactions and meson exchange currents.

J. Bermuth; P. Merle; C. C. Carasco; D. Baumann; R. Boehm; D. Bosnar; M. Ding; M. O. Distler; J. Friedrich; J. M Friedrich; J. Golak; W. Gloeckle; M. Hauger; W. Heil; P. Jennewein; J. Jourdan; H. Kamada; A. Klein; M. Kohl; B. Krusche; K. W. Krygier; H. Merkel; U. Mueller; R. Neuhausen; A. Nogga; Ch. Normand; E. Otten; Th. Pospischil; M. Potokar; D. Rohe; H. Schmieden; J. Schmiedeskamp; M. Seimetz; I. Sick; S. Sirca; S. Skibinski; G. Testa; Th. Walcher; G. Warren; M. Weis; H. Witala; H. Woehrle; M. Zeier

2003-03-27T23:59:59.000Z

67

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

E-Print Network (OSTI)

operates with a fixed switching frequency fs and variable duty ratio R, and can be analyzed using standard of a switching period, a fixed-frequency clock pulse sets the switch drive high. A signal proportionalFrequency Scalable Non-Linear Waveform Generator for Mixed-Simal Power-Factor-Correction IC

68

Gate-Modulated Thermoelectric Power Factor of Hole Gas in GeSi CoreShell Nanowires  

Science Journals Connector (OSTI)

We experimentally studied the thermoelectric power factor of hole gas in individual GeSi coreshell nanowires with Ge core diameters ranging from 11 to 25 nm. The Ge cores are dopant-free, but the Fermi level in the cores is pinned by surface and defect ...

Jaeyun Moon; Ji-Hun Kim; Zack C.Y. Chen; Jie Xiang; Renkun Chen

2013-02-08T23:59:59.000Z

69

Microbial Adhesion in Flow Displacement Systems  

Science Journals Connector (OSTI)

...surface in flow displacement systems...in a flow displacement system contributes...substratum surface, is the...is the contact angle between...established parabolic flow between parallel plates. FIG. 9...more than half the length...and right: After addition...rectangular flow displacement systems Configuration...liquid surface tension...degrees) , contact angle between...wall shear stress (N m2...

Henk J. Busscher; Henny C. van der Mei

2006-01-01T23:59:59.000Z

70

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

71

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

72

Interferometric fiber optic displacement sensor  

DOE Patents (OSTI)

A method is presented to produce a change in the optical path length in the gap between two single mode optical fibers proportional to the lateral displacement of either fiber end normal to its axis. This is done with the use of refraction or diffraction at the interface between a guiding and non-guiding media to change the direction of propagation of the light in the gap. A method is also presented for laying a waveguide on a cantilever so that the displacement of the tip of the cantilever produces a proportional path length change in the gap by distancing the waveguide from the neutral axis of the cantilever. The fiber is supported as a cantilever or a waveguide is deposited on a micromachined cantilever and incorporated in an interferometer which is made totally on a silicon substrate with the use of integrated-optic technology. A resonant element in the form of a micro-bridge is incorporated in the ridge waveguide and produces a frequency output which is readily digitizeable and immune to laser frequency noise. Finally, monolithic mechanical means for phase modulation are provided on the same sensor substrate. This is done by vibrating the cantilever or micro-bridge either electrically or optically. 29 figs.

Farah, J.

1995-05-30T23:59:59.000Z

73

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

74

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.

75

Displacement of crude oil by carbon dioxide  

E-Print Network (OSTI)

DISPLACEMENT OF CRUDE OIL BY CARBON DIOXIDE A Thesis by OLUSEGUN OMOLE Submitted to the Graduate College of Texas ASM University in part';al fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1980 Major Subject...: Petroleum Engineering DISPLACEMENT OF CRUDE OIL BY CARBON DIOXIDE A Thesis by OLUSEGUN OMOLE Approved as to style and content by: hairman of Committee / (Member (Member (Member (Hea o Depart ent December 1980 ABSTRACT Displacement of Crude Oil...

Omole, Olusegun

1980-01-01T23:59:59.000Z

76

Clean Cities Regional Support & Petroleum Displacement Awards  

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

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

77

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 (more)

Cerutti, Andres Enrique

2012-01-01T23:59:59.000Z

78

Linear efficient antialiased displacement and reflectance mapping  

Science Journals Connector (OSTI)

We present Linear Efficient Antialiased Displacement and Reflectance (LEADR) mapping, a reflectance filtering technique for displacement mapped surfaces. Similarly to LEAN mapping, it employs two mipmapped texture maps, which store the first two moments ... Keywords: BRDF, GPU, LEAN mapping, filtering, microfacet

Jonathan Dupuy; Eric Heitz; Jean-Claude Iehl; Pierre Poulin; Fabrice Neyret; Victor Ostromoukhov

2013-11-01T23:59:59.000Z

79

Displacement Transfer Zone | Open Energy Information  

Open Energy Info (EERE)

Displacement Transfer Zone Displacement Transfer Zone Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Displacement Transfer Zone Dictionary.png Displacement Transfer Zone: Displacement transfer zones facilitate the transfer of strain between normal and strike-slip faults. Intersections between strike-slip faults in the Walker Lane and N- to NNE-striking normal faults commonly host geothermal systems, focused along the normal faults proximal to their dilational intersections with nearby strike-slip faults. Other definitions:Wikipedia Reegle Controlling Structures List of controlling structures typically associated with geothermal systems: Major Normal Fault Termination of a Major Normal Fault Stepover or Relay Ramp in Normal Fault Zones Apex or Salient of Normal Fault

80

A Mixed-SignalASIC Power-Factor-Correction(PFC) Controller for High Frequency Switching Rectifiers  

E-Print Network (OSTI)

Regan Zane and Dragan MaksimoviC ColoradoPower Electronics Center (CoPEC) Department of Electrical-chip controller block dia- gram is described, and the fundamental analog and digital op- erating blocks proliferationof electronic systems throughout the home andof- ficeplacesnew constraints on front-end AC

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

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

82

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

83

Probing Baryogenesis with Displaced Vertices at the LHC  

E-Print Network (OSTI)

The generation of the asymmetric cosmic baryon abundance requires a departure from thermal equilibrium in the early universe. In a large class of baryogenesis models, the baryon asymmetry results from the out-of-equilibrium decay of a new, massive particle. We highlight that in the interesting scenario where this particle has a weak scale mass, this out-of-equilibrium condition requires a proper decay length larger than O(1) mm. Such new fields are within reach of the LHC, at which they can be pair produced leaving a distinctive, displaced-vertex signature. This scenario is realized in the recently proposed mechanism of baryogenesis where the baryon asymmetry is produced through the freeze-out and subsequent decay of a meta-stable weakly interacting massive particle ("WIMP baryogenesis"). In analogy to missing energy searches for WIMP dark matter, the LHC is an excellent probe of these new long-lived particles responsible for baryogenesis via the low-background displaced vertex channel. In our paper, we estimate the limits on simplified models inspired by WIMP baryogenesis from two of the most sensitive collider searches by CMS and ATLAS with 8 TeV LHC data. We also estimate the LHC reach at 13 TeV using current strategies, and demonstrate that up to a factor of 100 improvement in cross-section limits can be achieved by requiring two displaced vertices while lowering kinematic thresholds. For meta-stable WIMPs produced through electroweak interactions, the high luminosity LHC is sensitive to masses up to 2.5 TeV for lifetimes around 1 cm, while for singlets pair-produced through the off-shell-Higgs portal, the LHC is sensitive to production cross sections of O(10) ab for benchmark masses around 150 GeV. Our analysis and proposals also generally apply to displaced vertex signatures from other new physics such as hidden valley models, twin Higgs models and displaced supersymmetry.

Yanou Cui; Brian Shuve

2014-09-23T23:59:59.000Z

84

Different Factors Affecting Short Circuit Behavior of a Wind Power Plant  

SciTech Connect

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

2010-12-21T23:59:59.000Z

85

Different Factors Affecting Short Circuit Behavior of a Wind Power Plant  

SciTech Connect

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

86

Theoretical and experimental study on regenerative rotary displacer Stirling engine  

SciTech Connect

Recently a quite new type of hot air engine called rotary displacer engine, in which the displacer is a rotating disk enclosed in a cylinder, has been conceived and developed. The working gas, contained in a notch excavated in the disk, is heated and cooled alternately, on account of the heat transferred through the enclosing cylinder that is heated at one side and cooled at the opposite one. The gas temperature oscillations cause the pressure fluctuations that get out mechanical power acting on a power piston. In order to attempt to increase the performances for this kind of engine, the authors propose three different regeneration methods. The first one comprises two coaxial disks that, revolving in opposite ways, cause a temperature gradient on the cylinder wall and a regenerative axial heat conduction through fins shaped on the cylinder inner wall. The other two methods are based on the heat transferred by a proper closed circuit that in one case has a circulating liquid inside and in the other one is formed by several heat pipes working each one for different temperatures. An engine based on the first principle, the Regenerative Tandem Contra-Rotary Displacer Stirling Engine, has been realized and experimented. In this paper experimental results with and without regeneration are reported comparatively with a detailed description of the unity. A basic explanation of the working principle of this engine and a theoretical analysis investigating the main influential parameters for the regenerative effect are done. This new rotating displacer Stirling engines, for their simplicity, are expected to attain high rotational speed especially for applications as demonstration and hobby unities.

Raggi, L.; Katsuta, Masafumi [Waseda Univ., Tokyo (Japan); Isshiki, Naotsugu [Nihon Univ., Tokyo (Japan); Isshiki, Seita [Isshiki R and D Lab., Tokyo (Japan)

1997-12-31T23:59:59.000Z

87

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

E-Print Network (OSTI)

on the surfaces of the earth, buildings, and paved areas is very difficult to model. Factors which influence the behavior of the nuclides include external forces which cause weathering effects (soil erosion and penetration of the soil), chemical and physical... of the radionuclides into the soil is not disturbed by man (no soil cultivation). 5. Radionuclides with half-lives less than eight days need not be considered. 6. Radionuclides not having significant gamma emissions are not effective contributors to the total dose...

Meyer, Christopher Martin

1985-01-01T23:59:59.000Z

88

Experimental and theoretical analysis of the performance of Stirling engine with pendulum type displacer  

SciTech Connect

This paper describes the detailed experimental and theoretical performance of new type Stirling engine with pendulum type displacer (PDSE) which was proposed last year. This kind of engine has a pendulum type displacer suspended by the hinge shaft, and swings right and left in displacer space. The present paper mainly discusses the PDSE-3B which is an atmospheric 30[W] engine heated by fuel and cooled by water. It is clear that power required to provide a pendulum type displacer motion is expressed as a simple equation consisting of viscous flow loss term proportional to the square of rotational speed and dynamic pressure loss term proportional to the cube of rotational speed. It is also clear that theoretical engine power defined as the difference between experimental indicated power and power required to provide pendulum type displacer motion agrees well with the experimental engine power. It is also clear that measured Nusselt number of regenerator`s wire meshes agreed with the equation of previous study. In conclusion, PDSE is considered effective for measuring many aspects of performance of the Stirling engine.

Isshiki, Seita; Isshiki, Naotsugu [Isshiki R and D Lab., Tokyo (Japan); Takanose, Eiichiro; Igawa, Yoshiharu [Shiroki Corp., Toyokawashi (Japan)

1995-12-31T23:59:59.000Z

89

Investigation of monoterpenes by micro displacement adsorption  

Science Journals Connector (OSTI)

In the investigation of monoterpenes a micromethod based on displacement adsorption has been used. The theoretical background of the adsorption method has been discussed and examples are given where the microm...

Sven-Gsta Blohm; Gunnar Widmark

1956-01-01T23:59:59.000Z

90

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

91

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.... 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...

Cava, Norayda Nora

2012-06-07T23:59:59.000Z

92

Amorphization of Silicon Carbide by Carbon Displacement. | EMSL  

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

of Silicon Carbide by Carbon Displacement. Amorphization of Silicon Carbide by Carbon Displacement. Abstract: We have used molecular dynamics simulations to examine the possibility...

93

Supersensitive measurement of angular displacements using entangled photons  

SciTech Connect

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

94

Power-Factor Calculation under Consideration of Cross Saturation of the Interior Permanent Magnet Synchronous Motor with Brushless Field Excitation  

SciTech Connect

This paper introduces a new method for calculating the power factor with consideration of the cross saturation between the direct-axis (d-axis) and the quadrature-axis (q-axis) of an interior permanent magnet synchronous motor (IPMSM). The conventional two-axis IPMSM model is modified to include the cross-saturation effect by adding the cross-coupled inductance terms. This paper also contains the new method of calculating the cross-coupled inductance values as well as self-inductance values in d- and q-axes. The analyzed motor is a high-speed brushless field excitation machine that offers high torque per ampere per core length at low speed and weakened flux at high speed, which was developed for the traction motor of a hybrid electric vehicle.

Lee, Seong T [ORNL; Burress, Timothy A [ORNL; Hsu, John S [ORNL

2009-01-01T23:59:59.000Z

95

Sc41-Ca41 Coulomb displacement energy  

Science Journals Connector (OSTI)

The Coulomb displacement energy in the Sc41-Ca41 system is calculated using three different methods. All three methods make use of Hartree-Fock densities at some stage. The Hartree-Fock calculations are performed with the SIII and SIV Skyrme-type forces. The results from all three methods are in agreement with each other. The resulting Coulomb displacement energy is less than 4 or less than 6 percent smaller than the experimental one depending on the force employed. Higher order Coulomb corrections are evaluated and it is found that they can be very large (of the order of 1 MeV) and depend on the approach taken. The use of the analog state defined with the T- operator as a representation of the physical analog leads to an overestimate of the Coulomb displacement energy by more than 0.5 MeV. The inclusion of Coulomb distortion terms restores the result by reducing the Coulomb displacement energy. One can also conclude from the present study that the mechanism of treating higher order Coulomb corrections by taking the giant isovector monopole as the only important intermediate state is in fact the correct one and gives precise results.NUCLEAR STRUCTURE Coulomb displacement energy, Sc41-Ca41 system.

N. Auerbach; V. Bernard; Nguyen Van Giai

1980-02-01T23:59:59.000Z

96

Definition: Displacement Transfer Zone | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Displacement Transfer Zone Jump to: navigation, search Dictionary.png Displacement Transfer Zone Displacement transfer zones facilitate the transfer of strain between normal and strike-slip faults. Intersections between strike-slip faults in the Walker Lane and N- to NNE-striking normal faults commonly host geothermal systems, focused along the normal faults proximal to their dilational intersections with nearby strike-slip faults.[2] View on Wikipedia Wikipedia Definition References ↑ James E. Faulds,Nicholas H. Hinz,Mark F. Coolbaugh,Patricia H. Cashman,Christopher Kratt,Gregory Dering,Joel Edwards,Brett Mayhew,Holly McLachlan. 2011. Assessment of Favorable Structural Settings of Geothermal

97

Bonneville Power Administration Attachment P Oversupply Management...  

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

Transmission Provider will displace all such Generators on a pro-rata basis. Bonneville Power Administration Attachment P Oversupply Management Protocol Open Access Transmission...

98

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

2012-06-07T23:59:59.000Z

99

Increasing positive displacement charging pump reliability  

SciTech Connect

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

100

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

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

Competitive adsorption, displacement, and transport of organic matter on iron oxide: II. Displacement and transport  

SciTech Connect

The competitive interactions between organic matter compounds and mineral surfaces are poorly understood, yet these interactions may play a significant role in the stability and co-transport of mineral colloids and/or environmental contaminants. In this study, the processes of competitive adsorption, displacement, and transport of Suwannee River natural organic matter (SR-NOM) are investigated with several model organic compounds in packed beds of iron oxide-coated quartz columns. Results demonstrated that strongly-binding organic compounds are competitively adsorbed and displace those weakly-bound organic compounds along the flow path. Among the four organic compounds studied, polyacrylic acid (PAA) appeared to be the most competitive, whereas SR-NOM was more competitive than phthalic and salicylic acids. A diffuse adsorption and sharp desorption front (giving an appearance of irreversible adsorption) of the SR-NOM breakthrough curves are explained as being a result of the competitive time-dependent adsorption and displacement processes between different organic components within the SR-NOM. The stability and transport of iron oxide colloids varied as one organic component competitively displaces another. Relatively large quantities of iron oxide colloids are transported when the more strongly-binding PAA competitively displaces the weakly-binding SR-NOM or when SR-NOM competitively displaces phthalic and salicylic acids. Results of this study suggest that the chemical composition and hence the functional behavior of NOM (e.g., in stabilizing mineral colloids and in complexing contaminants) can change along its flow path as a result of the dynamic competitive interactions between heterogeneous NOM subcomponents. Further studies are needed to better define and quantify these NOM components as well as their roles in contaminant partitioning and transport. 37 refs., 10 figs.

Gu, B; Mehlhorn, T.L.; Liang, Liyuan [Oak Ridge National Lab., TN (United States)] [and others] [Oak Ridge National Lab., TN (United States); and others

1996-08-01T23:59:59.000Z

102

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

103

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

104

Wind power generating system  

SciTech Connect

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

Calculus of sea-displacement operators  

Science Journals Connector (OSTI)

Sea-displacement operators for fermions are defined in terms of the Fermi fields in a one-component Fermi system. The main conclusions of this article fully corroborate the conjectures made in our earlier works, and provide a mathematically rigorous foundation for these earlier works. These ideas are generalized to electron-hole systems where we are able to clearly explore the nature of exciton-exciton interactions. We find that exciton-exciton interactions in an ideal model of GaAs are not adequately treated simply as of the two-body type; rather the interactions are mediated by the exchange of other bosons that are present in this system. These bosons are identified explicitly and the exciton Green function is calculated. This exercise is also intended to be a precursor to a systematic nonperturbative treatment of gauge theories.

Girish S. Setlur and D. S. Citrin

2002-04-05T23:59:59.000Z

106

Displaced Vertices from X-ray Lines  

E-Print Network (OSTI)

We present a simple model of weak-scale thermal dark matter that gives rise to X-ray lines. Dark matter consists of two nearly degenerate states near the weak scale, which are populated thermally in the early universe via co-annihilation with slightly heavier states that are charged under the Standard Model. The X-ray line arises from the decay of the heavier dark matter component into the lighter one via a radiative dipole transition, at a rate that is slow compared to the age of the universe. The model predicts observable signatures at the LHC in the form of exotic events with missing energy and displaced leptons and jets. As an application, we show how this model can explain the recently observed 3.55 keV X-ray line.

Adam Falkowski; Yonit Hochberg; Joshua T. Ruderman

2014-09-09T23:59:59.000Z

107

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.

108

Fuel Displacement & Cost Potential of CNG, LNG, and LPG Vehicles...  

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

LPG Vehicles Fuel Displacement & Cost Potential of CNG, LNG, and LPG Vehicles 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and...

109

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

E-Print Network (OSTI)

turbine or jet engine since it is based on the actual thermodynamic Brayton cycle. ACKNOHLEDGEMEHTS Assistance and advice from many people have contributed greatly to this research. The Author is grateful to Professor Stanley H. Lowy from... The nature of the probj em Objectives Background 1 3 4 4 7 1I EFFECTS OF STATE POINT VARIATIONS ? General ? Variations of inlet state points with temperature and pressure III IDEAL AND ACTUAL CYCLE ANALYSIS 21 General Variations of power...

Raphael, Michel Antoun

2012-06-07T23:59:59.000Z

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

Electrodynamic Displacement of Atomic Energy Levels. II. Lamb Shift  

Science Journals Connector (OSTI)

The vacuum fluctuations of the photon and pair fields modify the interaction of an electron with an electromagnetic field. The effects on the energy levels are conveniently described in terms of the mass operator and the vacuum polarization potential. An operator calculus for handling the mass operator is used to separate the contribution of low energy quanta, for which the external electromagnetic field may not be treated as weak. The remainder is given as a power series in the field. The additional displacement of order Z? with respect to the published values for the Lamb shift is calculated by specializing the external field to the Coulomb field of the nucleus and by taking the matrix element of the operators in an S-state of a hydrogen-like atom. It is found that the nS-level is raised by Z5?4n3Ry1+11128-12ln2+5192. The theoretical value for the Lamb shift of an atom with infinitely heavy nucleus becomes 1058.42 Mc/sec. Effects of finite nuclear mass and size change this value to 1057.8 Mc/sec and 1058.9 Mc/sec for hydrogen and deuterium, respectively.

Robert Karplus, Abraham Klein, and Julian Schwinger

1952-05-01T23:59:59.000Z

112

LANSCE | Lujan Center | Highlights | Local iron displacements and  

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

Local iron displacements and magnetoelastic coupling in a spin-ladder Local iron displacements and magnetoelastic coupling in a spin-ladder compound Hypothesis: Is magnetoelastic coupling in [FeX4]-based materials, an important ingredient in the emergence of superconductivity? Lujan Center: Combined Total Scattering and magnetic structure determination (HIPD-NPDF) The study of local, average and magnetic structure shows the existenceof highly correlated local iron (Fe) displacements in the spin-ladder iron chalcogenide BaFe2Se3. Built of ferromagnetic [Fe4] plaquettes, the magnetic ground state correlates with local displacements of the Fe atoms. Knowledge of these local displacements is essential for properly understanding the electronic structure of these systems. As with the copper oxide superconductors two decades ago, these

113

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

SciTech Connect

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

114

A study on lubricant oil supply for positive-displacement expanders in small-scale organic Rankine cycles  

Science Journals Connector (OSTI)

Abstract Positive-displacement expanders, which are widely used in small-scale \\{ORCs\\} (Organic Rankine Cycles), need reliable LOS (Lubricant Oil Supply) to get well lubrication and sealing. In the present paper, the characteristics of two traditional LOS schemes are examined. Moreover, a modified one is proposed. Analyses of those elements that lead to work loss of lubricant oil supply have been carried out for all the three LOS schemes. The work loss of lubricant oil supply, which is caused by the employment of lubricant oil pumps, pressure drop in lubricant oil separator and other components contributing to work loss, is evaluated by a definition of WLLS (Work Loss Factor of Lubrication Oil Supply). Based on the thermodynamic model of ORC established, the calculation methods of WLLS are presented. Through analyses of LOS schemes and calculation of WLLS in two typical ORCs, it was found that the traditional LOS schemes either can not work reliably, or might cause up to 11.5% and 9.5% power decrease. The values can be reduced by half in the proposed LOS scheme, which can also work reliably. Accompanied with the advantages, the defects of the new scheme were also investigated.

Biao Lei; Yu-Ting Wu; Wei Wang; Jing-Fu Wang; Chong-Fang Ma

2014-01-01T23:59:59.000Z

115

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

SciTech Connect

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

116

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

117

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

118

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

119

Phase-Transfer Catalysis Displacement Reactions with Simple Anions  

Science Journals Connector (OSTI)

Phase-transfer catalysis (PTC) is an excellent technique both in liquidliquid and liquidsolid (and sometimes in liquidvapor) modes for conducting displacement reactions with anions.

Charles M. Starks; Charles L. Liotta; Marc E. Halpern

1994-01-01T23:59:59.000Z

120

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

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 novel approach to modeling unstable EOR displacements. Final report  

SciTech Connect

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

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

Integration of biomass into urban energy systems for heat and power. Part II: Sensitivity assessment of main techno-economic factors  

Science Journals Connector (OSTI)

Abstract The paper presents the application of a mixed integer linear programming (MILP) methodology to optimize multi-biomass and natural gas supply chain strategic design for heat and power generation in urban areas. The focus is on spatial and temporal allocation of biomass supply, storage, processing, transport and energy conversion (heat and CHP) to match the heat demand of residential end users. The main aim lies on the assessment of the trade-offs between centralized district heating plants and local heat generation systems, and on the decoupling of the biomass processing and biofuel energy conversion steps. After a brief description of the methodology, which is presented in detail in Part I of the research, an application to a generic urban area is proposed. Moreover, the influence of energy demand typologies (urban areas energy density, heat consumption patterns, buildings energy efficiency levels, baseline energy costs and available infrastructures) and specific constraints of urban areas (transport logistics, air emission levels, space availability) on the selection of optimal bioenergy pathways for heat and power is assessed, by means of sensitivity analysis. On the basis of these results, broad considerations about the key factors influencing the use of bioenergy into urban energy systems are proposed. Potential further applications of this model are also described, together with main barriers for development of bioenergy routes for urban areas.

Antonio M. Pantaleo; Sara Giarola; Ausilio Bauen; Nilay Shah

2014-01-01T23:59:59.000Z

124

Aspects of non-Newtonian flow and displacement in porous media  

SciTech Connect

The rheology of many heavy oils has been shown to be non-Newtonian, Bingham plastics being one manifestation of heavy oil flow. In EOR applications, non-Newtonian fluids such as low concentration polymer solutions, emulsions, gels etc. are simultaneously injected to increase the viscosity of driving agents that displace oil. Such rheologically complex fluids are used to improve sweep efficiencies, divert displacing fluids and block swept zones. The present study has been undertaken to understand the flow of non-Newtonian fluids through porous media. The work considered involves the numerical (pore network) modeling of both single and multiphase flow of power-law and Bingham plastic fluids in network-like porous media. We consider aspects of both single- and multi-phase flow and displacement. Section 2 describes elementary aspects of non-Newtonian flow and some simple models for porous media. Viscoelastic effects in the flow of non-Newtonian fluids are also discussed. The section includes a brief literature review on non-Newtonian flow in porous media. Section 3 describes single-phase flow.

Shah, C.; Yortsos, Y.C.

1993-02-01T23:59:59.000Z

125

Drive mechanism for stirling engine displacer and piston and other reciprocating bodies  

SciTech Connect

A drive mechanism is disclosed for drivingly connecting two reciprocating bodies to a rotating body and is particularly useful for linking a single pin crank of a crank-type stirling engine to its displacer and power piston. The drive means has at least two slotted yokes, each connected to a different one of the reciprocating bodies such as the pistons of the stirling engine. The pin of the crank extends through the slots of both slotted yokes. The slots are transverse to each other and preferably are linear.

Senft, J.R.

1982-07-20T23:59:59.000Z

126

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

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

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 -...

127

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

128

National Labs Open Doors to Displaced Japanese Researchers | Department of  

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

National Labs Open Doors to Displaced Japanese Researchers National Labs Open Doors to Displaced Japanese Researchers National Labs Open Doors to Displaced Japanese Researchers July 5, 2011 - 1:42pm Addthis Maiko Kofu, Atsushi Nagoe and Osamu Yamamuro examine their sample attached to the end of the cryostat stick after running an experiment at Oak Ridge National Laboratory’s Spallation Neutron Source. | Department of Energy Photo | Courtesy of Oak Ridge National Laboratory | Public Domain | Maiko Kofu, Atsushi Nagoe and Osamu Yamamuro examine their sample attached to the end of the cryostat stick after running an experiment at Oak Ridge National Laboratory's Spallation Neutron Source. | Department of Energy Photo | Courtesy of Oak Ridge National Laboratory | Public Domain | Charles Rousseaux Charles Rousseaux

129

Displacement of oil from porous material with carbonated water  

E-Print Network (OSTI)

DISPLACEMENT OF OIL FROM POROUS MATERIAL WITH CARBONATED WATER A Thesis By JAGJIT S. YADAV Submitted to the Graduate College of the Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August... 1967 Ma/or Sub)act; Petroleum Engineering DISPLACEMENT OF OIL FROM POROUS MATERIAL WITH CARBONATED WATER A Thesis By JAGJIT ST YADAV Approved as to style and content by: ( ai an of Committee) cZ&-& 3~ ~" (Head of Department) (Member) (Member...

Yadav, Jagjit Singh

1967-01-01T23:59:59.000Z

130

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

131

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

132

Effect of various system factors on the effectiveness and expedient scale of use of pumped-storage station in power systems of the country  

Science Journals Connector (OSTI)

1. The economic effectiveness of PSS substantially depends on the conditions of development of power systems tak...

V. S. Sharygin; S. A. Pletnev

1983-05-01T23:59:59.000Z

133

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

SciTech Connect

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

134

Walker Branch Throughfall Displacement Experiment Data Report: Site  

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

D: D: LISTING OF THROUGHFALL DISPLACEMENT EXPERIMENT PUBLICATIONS A. INTRODUCTORY PAPERS AND SUMMARIES Hanson, P. J., D. E. Todd, D. W. Johnson, J. D. Joslin, and E. G. O'Neill (in press). Responses of eastern deciduous forests to precipitation change. In J. F. Weltzin and G. R. McPherson (eds.), Precipitation and Terrestrial Ecosystems, John Hopkins University Press, Baltimore. Hanson, P. J. 2000. Large-scale water manipulations. pp. 341-352. In O. E. Sala, R. B. Jackson, H. A. Mooney, and R. W. Howarth (eds.), Methods in Ecosystem Science , Springer- Verlag, New York. Hanson, P. J., D. E. Todd, N. T. Edwards, and M. A. Huston. 1995. Field performance of the Walker Branch Throughfall Displacement Experiment. pp. 307-313. In A. Jenkins, R. C. Ferrier, and C. Kirby (eds.), Ecosystem

135

Supersensitive measurement of angular displacements using entangled photons  

E-Print Network (OSTI)

We show that the use of entangled photons having non-zero orbital angular momentum (OAM) increases the resolution and sensitivity of angular-displacement measurements performed using an interferometer. By employing a 4$\\times$4 matrix formulation to study the propagation of entangled OAM modes, we analyze measurement schemes for two and four entangled photons and obtain explicit expressions for the resolution and sensitivity in these schemes. We find that the resolution of angular-displacement measurements scales as $Nl$ while the angular sensitivity increases as $1/(2Nl)$, where $N$ is the number of entangled photons and $l$ the magnitude of the orbital-angular-momentum mode index. These results are an improvement over what could be obtained with $N$ non-entangled photons carrying an orbital angular momentum of $l\\hbar$ per photon

Anand Kumar Jha; Girish S. Agarwal; Robert W. Boyd

2010-11-12T23:59:59.000Z

136

Macroscopic displaced thermal field as the entanglement catalyst  

E-Print Network (OSTI)

We show that entanglement of multiple atoms can arise via resonant interaction with a displaced thermal field with a macroscopic photon-number. The cavity field acts as the catalyst, which is disentangled with the atomic system after the operation. Remarkably, the entanglement speed does not decrease as the average photon-number of the mixed thermal state increases. The atoms may evolve to a highly entangled state even when the photon-number of the cavity mode approaches infinity.

Shi-Biao Zheng

2012-03-07T23:59:59.000Z

137

Macroscopic displaced thermal field as the entanglement catalyst  

E-Print Network (OSTI)

We show that entanglement of multiple atoms can arise via resonant interaction with a displaced thermal field with a macroscopic photon-number. The cavity field acts as the catalyst, which is disentangled with the atomic system after the operation. Remarkably, the entanglement speed does not decrease as the average photon-number of the mixed thermal state increases. The atoms may evolve to a highly entangled state even when the photon-number of the cavity mode approaches infinity.

Zheng, Shi-Biao

2012-01-01T23:59:59.000Z

138

Cenozoic evidence of displacements along the Meers Fault, southwestern Oklahoma  

E-Print Network (OSTI)

which had been deposited over this Tertiary surface. The remnant pediment surfaces in the Wichita Mountains may then be used as a relative datum horizon in interpreting Tertiary and younger displacements within the region. ACKNOWLEDGEMENTS I would...) Schematic diagram of the Pointer Site Excavations 34 36 10 A) The buried soil and caliche-clay deposits exhibiting plane of compaction between the upper- and lower-orange deposits. 8) Close-up of caliche-clay deposit. . . . . . 38 Photograph comparing...

Kientop, Gregory Allen

2012-06-07T23:59:59.000Z

139

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

140

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

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

Power-Factor and Torque Calculation under Consideration of Cross Saturation of the Interior Permanent Magnet Synchronous Motor with Brushless Field Excitation  

SciTech Connect

This paper introduces a new method for calculating the power factor and output torque by considering the cross saturation between direct-axis (d-axis) and quadrature-axis (q-axis) of an interior permanent magnet synchronous motor (IPMSM). The conventional two-axis IPMSM model is modified to include the cross saturation effect by adding the cross-coupled inductance terms. This paper also contains the new method of calculating the cross-coupled inductance values as well as self-inductance values in d- and q-axes. The analyzed motor is a high-speed brushless field excitation machine that offers high torque per ampere per core length at low speed and weakened flux at high speed, which was developed for the traction motor of a hybrid electric vehicle. The conventional two-axis IPMSM model was modified to include the cross-saturation effect by adding the cross-coupled inductance terms Ldq and Lqd. By the advantage of the excited structure of the experimental IPMSM, the analyzing works were performed under two conditions, the highest and lowest excited conditions. Therefore, it is possible to investigate the cross-saturation effect when a machine has higher magnetic flux from its rotor. The following is a summary of conclusions that may be drawn from this work: (1) Considering cross saturation of an IPMSM offers more accurate expected values of motor parameters in output torque calculation, especially when negative d-axis current is high; (2) A less saturated synchronous machine could be more affected by the cross-coupled saturation effect; (3) Both cross-coupled inductances, L{sub qd} and L{sub dq}, are mainly governed by d-axis current rather than q-axis current; (4) The modified torque equation, can be used for the dynamic model of an IPMSM for developing a better control model or control strategy; and (5) It is possible that the brushless field excitation structure has a common magnetic flux path on both d- and q-axis, and as a result, the reluctance torque of the machine could be reduced.

Lee, Seong T [ORNL; Burress, Timothy A [ORNL; Tolbert, Leon M [ORNL

2009-01-01T23:59:59.000Z

142

Displacement current phenomena in the magnetically insulated transmission lines of the refurbished Z accelerator  

Science Journals Connector (OSTI)

Experimental data is presented that illustrates important displacement current phenomena in the magnetically insulated transmission lines (MITLs) of the refurbished Z accelerator [D.?V. Rose et al., Phys. Rev. ST Accel. Beams 13, 010402 (2010)]. Specifically, we show how displacement current in the MITLs causes significant differences between the accelerator current measured at the vacuum-insulator stack (at a radial position of about 1.6m from the Z axis of symmetry) and the accelerator current measured at the load (at a radial position of about 6cm from the Z axis of symmetry). The importance of accounting for these differences was first emphasized by Jennings etal. [C.?A. Jennings et al., IEEE Trans. Plasma Sci. 38, 529 (2010)], who calculated them using a full transmission-line-equivalent model of the four-level MITL system. However, in the data presented by Jennings etal., many of the interesting displacement current phenomena were obscured by parasitic current losses that occurred between the vacuum-insulator stack and the load (e.g., electron flow across the anode-cathode gap). By contrast, the data presented herein contain very little parasitic current loss, and thus for these low-loss experiments we are able to demonstrate that the differences between the current measured at the stack and the current measured at the load are due primarily to the displacement current that results from the shunt capacitance of the MITLs (about 8.41nF total). Demonstrating this is important because displacement current is an energy storage mechanism, where energy is stored in the MITL electric fields and can later be used by the system. Thus, even for higher-loss experiments, the differences between the current measured at the stack and the current measured at the load are often largely due to energy storage and subsequent release, as opposed to being due solely to some combination of measurement error and current loss in the MITLs and/or double post-hole convolute. Displacement current also explains why the current measured downstream of the MITLs (i.e., the load current) often exceeds the current measured upstream of the MITLs (i.e., the stack current) at various times in the power pulse (this particular phenomenon was initially thought to be due to timing and/or calibration errors). To facilitate a better understanding of these phenomena, we also introduce and analyze a simple LC circuit model of the MITLs. This model is easily implemented as a simple drive circuit in simulation codes, which has now been done for the LASNEX code [G.?B. Zimmerman and W.?L. Kruer, Comments Plasma Phys. Controlled Fusion 2, 51 (1975)] at Sandia, as well as for simpler MATLAB-based codes at Sandia. An example of this LC model used as a drive circuit will also be presented.

R. D. McBride; C. A. Jennings; R. A. Vesey; G. A. Rochau; M. E. Savage; W. A. Stygar; M. E. Cuneo; D. B. Sinars; M. Jones; K. R. LeChien; M. R. Lopez; J. K. Moore; K. W. Struve; T. C. Wagoner; E. M. Waisman

2010-12-27T23:59:59.000Z

143

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

NLE Websites -- All DOE Office Websites (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...

144

Zonal displacement of western Pacific warm pool and zonal wind anomaly over the Pacific Ocean  

Science Journals Connector (OSTI)

The thermal condition anomaly of the western Pacific warm pool and its zonal displacement have ... impact of the zonal wind anomaly over the Pacific Ocean on zonal displacement of the warm pool ... to the zonal w...

Qilong Zhang ???; Qinghua Zhang ???

2007-07-01T23:59:59.000Z

145

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

146

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.

147

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

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

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

150

Differential displacement measurement using scanning x-ray beams  

Science Journals Connector (OSTI)

A noncontacting method for measuring mechanical strain between two fiducial marks has been developed for use where environmental conditions would be disruptive to methods utilizing optical light. A silicon 111 Johansson crystal is used for this application where Mo K? radiation is used to fluoresce fiducial markers made of yittria-stabilized zirconia. This substance is used for a thermal barrier coating in gas turbine engines and the technology for applying this material to withstand long term high temperature exposure is highly developed. The current system has a displacement repeatability of better than 0.1 ?m which is not limited by counting statistics but rather determined by mechanical considerations.

Howard A. Canistraro; Eric H. Jordan; Douglas M. Pease

1998-01-01T23:59:59.000Z

151

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.

152

Performance comparison of fiber tips in interferometric displacement mesurements  

SciTech Connect

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

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

Carbon Sequestered, Carbon Displaced and the Kyoto Context  

SciTech Connect

The integrated system that embraces forest management, forest products, and land-use change impacts the global carbon cycle - and hence the net emission of the greenhouse gas carbon dioxide - in four fundamental ways. Carbon is stored in living and dead biomass, carbon is stored in wood products and landfills, forest products substitute in the market place for products made from other materials, and forest harvests can be used wholly or partially to displace fossil fuels in the energy sector. Implementation of the Kyoto Protocol to the United Nations Framework Convention on Climate Change would result in the creation of international markets for carbon dioxide emissions credits, but the current Kyoto text does not treat all carbon identically. We have developed a carbon accounting model, GORCAM, to examine a variety of scenarios for land management and the production of forest products. In this paper we explore, for two simple scenarios of forest management, the carbon flows that occur and how these might be accounted for under the Kyoto text. The Kyoto protocol raises questions about what activities can result in emissions credits, which carbon reservoirs will be counted, who will receive the credits, and how much credit will be available? The Kyoto Protocol would sometimes give credits for carbon sequestered, but it would always give credits when fossil-fuel carbon dioxide emissions are displaced.

Marland, G.; Schlamadinger, B.

1999-04-18T23:59:59.000Z

155

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

SciTech Connect

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

156

Geothermal Power Generation  

SciTech Connect

The report provides an overview of the renewed market interest in using geothermal for power generation including a concise look at what's driving interest in geothermal power generation, the current status of geothermal power generation, and plans for the future. Topics covered in the report include: an overview of geothermal power generation including its history, the current market environment, and its future prospects; an analysis of the key business factors that are driving renewed interest in geothermal power generation; an analysis of the challenges that are hindering the implementation of geothermal power generation projects; a description of geothermal power generation technologies; a review of the economic drivers of geothermal power generation project success; profiles of the major geothermal power producing countries; and, profiles of the major geothermal power project developers.

NONE

2007-11-15T23:59:59.000Z

157

Engineering superpositions of displaced number states of a trapped ion  

E-Print Network (OSTI)

We present a protocol that permits the generation of a subtle with superposition with 2^(l+1) displaced number states on a circle in phase space as target state for the center-of-mass motion of a trapped ion. Through a sequence of 'l' cycles involving the application of laser pulses and no-fluorescence measurements, explicit expressions for the total duration of laser pulses employed in the sequence and probability of getting the ion in the upper electronic state during the 'l' cycles are obtained and analyzed in detail. Furthermore, assuming that the effective relaxation process of a trapped ion can be described in the framework of the standard master equation for the damped harmonic oscillator, we investigate the degradation of the quantum interference effects inherent to superpositions via Wigner function.

Marcelo A. Marchiolli; Wagner D. Jose

2004-04-05T23:59:59.000Z

158

Phase behavior and minimum miscibility pressure for nitrogen miscible displacement  

SciTech Connect

Nitrogen (N/sub 2/) has been successfully used as a displacing gas for light oil recovery. The information of the minimum miscibility pressure (MMP) and phase behavior for N/sub 2/ with light oils is important for the screening of this oil recovery method. Phase behavior studies were performed on N/sub 2/-hydrocarbon mixtures at high pressure (above 4,000 psia) to help interpret the results of the slim tube experiments. Synthetic oil systems of methane + n-butane (nC/sub 4/) + n-decane (nC/sub 10/) were studied to determine the approximate phase behavior of crude oil with nitrogen and to investigate the effect of the presence of methane (C/sub 1/) on phase behavior and the MMP of N/sub 2/. The resulting phase diagram shows that methane can lower the miscibility pressure of nitrogen.

Chung, F.T.H.; Llave, F.M.; Louvier, R.W.; Hudgins, D.A.

1987-01-01T23:59:59.000Z

159

Designing AC Power Grids using Integer Linear Programming  

E-Print Network (OSTI)

A power grid is a transmission network transporting electrical energy from power ... cost factor for the active power losses, Re the line resistance, and Xe the...

2011-02-18T23:59:59.000Z

160

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

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

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

162

Rab cascades and tethering factors in the endomembrane system Daniel F. Markgraf, Karolina Peplowska, Christian Ungermann*  

E-Print Network (OSTI)

the cytosol, the inac- tive GDP-form is bound to GDI (GDP dissociation inhibitor), which also shields the Rab's hydrophobic prenyl anchor [10,11]. To bind to membranes, GDI must be displaced from Rab-GDP by a membrane bound GDF (GDI displacement factor) [12]. A number of integral membrane proteins of the Yip family have

Ungermann, Christian

163

E-Print Network 3.0 - anisotropic displacement parameters Sample...  

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

2040404202 Summary: to the interstitial, strongly anisotropic displacement fields with exponential behavior can occur for certain defect... triangular lattice. While close to...

164

Fuel availability in nuclear power.  

E-Print Network (OSTI)

?? Nuclear power is in focus of attention due to several factors these days and the expression nuclear renaissance is getting well known. However, concerned (more)

Sderlund, Karl

2009-01-01T23:59:59.000Z

165

Fractionation by shape in deterministic lateral displacement microfluidic devices  

E-Print Network (OSTI)

We investigate the migration of particles of different geometrical shapes and sizes in a scaled-up model of a gravity-driven deterministic lateral displacement (g-DLD) device. Specifically, particles move through a square array of cylindrical posts as they settle under the action of gravity. We performed experiments that cover a broad range of orientations of the driving force (gravity) with respect to the columns (or rows) in the square array of posts. We observe that as the forcing angle increases particles initially locked to move parallel to the columns in the array begin to move across the columns of obstacles and migrate at angles different from zero. We measure the probability that a particle would move across a column of obstacles, and define the critical angle {\\theta}c as the forcing angle at which this probability is 1/2. We show that critical angle depends both on particle size and shape, thus enabling both size- and shape-based separations. Finally, we show that using the diameter of the inscribe...

Jiang, Mingliang; Drazer, German

2014-01-01T23:59:59.000Z

166

MOLECULAR DYNAMICS SIMULATIONS OF DISPLACEMENT CASCADES IN MOLYBDENUM  

SciTech Connect

Molecular dynamics calculations have been employed to simulate displacement cascades in neutron irradiated Mo. A total of 90 simulations were conducted for PKA energies between 1 and 40 keV and temperatures from 298 to 923K. The results suggest very little effect of temperature on final defect count and configuration, but do display a temperature effect on peak defect generation prior to cascade collapse. Cascade efficiency, relative to the NRT model, is computed to lie between 1/4 and 1/3 in agreement with simulations performed on previous systems. There is a tendency for both interstitials and vacancies to cluster together following cascade collapse producing vacancy rich regions surrounded by interstitials. Although coming to rest in close proximity, the point defects comprising the clusters generally do not lie within the nearest neighbor positions of one another, except for the formation of dumbbell di-interstitials. Cascades produced at higher PKA energies (20 or 40 keV) exhibit the formation of subcascades.

Smith, Richard Whiting

2003-09-08T23:59:59.000Z

167

The influence of tropical heating displacements on the extratropical climate  

SciTech Connect

The hypothesis is advanced that a latitudinal shift in the tropical convective heating pattern can significantly alter temperatures in the extratropics. Results of a simplified GCM show that the shift of a prescribed tropical heating toward the summer pole, on time scales longer than a few weeks, leads to a more intense cross-equatorial [open quotes]winter[close quotes] Hadley circulation, enhanced upper-level tropical easterlies, and a slightly stronger subtropical winter jet, accompanied by warming at the winter middle and high latitudes as a result of increased dynamical heating. The indications are that there is a robust connection between the net dynamic heating in the extratropics and the implied changes in the subtropical wind shear resulting from adjustments in the Hadley circulation associated with convective heating displacements in the tropics. The implications are that (i) the low-frequency temporal variability in the Hadley circulation may play an important role in modulating wave transport in the winter extratropics, (ii) the global climate may be sensitive to those processes that control deep cumulus convection in the tropics, and (iii) systematic temperature biases in GCMs may be reduced by improving the tropical rainfall simulation. 43 refs., 49 figs.

Hou, A.Y. (NASA/Goddard Space Flight Center, Greenbelt, MD (United States))

1993-11-01T23:59:59.000Z

168

Relative brain displacement and deformation during constrained mild frontal head impact  

Science Journals Connector (OSTI)

...Research articles 1004 25 26 18 Relative brain displacement and deformation during constrained...fields of relative displacement between the brain and the skull in vivo by tagged magnetic...digital image analysis. Motion of the brain relative to the skull occurs during normal...

2010-01-01T23:59:59.000Z

169

Coupled displacive and orderdisorder dynamics in LiNbO3 by molecular-dynamics simulation  

E-Print Network (OSTI)

transition. We find that this phase transition is a two-stage process involving a displacive transition, in the paraelectric phase each Nb ion sits at the center of a cage of six oxygen ions; in the ferroelectric structure phase the Li ions are actually displaced from the oxygen plane. Due to electrostatic repulsion, the Li

Gopalan, Venkatraman

170

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

171

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

172

A Displacement-Based Error Measure Applied in a Regional Ensemble Forecasting System  

Science Journals Connector (OSTI)

Errors in regional forecasts often take the form of phase errors, where a forecasted weather system is displaced in space or time. For such errors, a direct measure of the displacement is likely to be more valuable than traditional measures. A ...

Christian Keil; George C. Craig

2007-09-01T23:59:59.000Z

173

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

174

Convergent synthesis of panclicin-D via intramolecular SN2 displacement approach  

Science Journals Connector (OSTI)

Abstract A convergent enantioselective synthesis of panclicin-D has been reported from simple octanal using syn aldol reaction via intramolecular SN2 displacement reaction for the first time towards the construction of anti-?-lactones in panclicin-D. The key steps involved are C-allylation, asymmetric aldolization under Crimmins condition, intramolecular SN2 displacement, and Mitsunobu esterification reaction.

Jhillu Singh Yadav; Soma Shekar Dachavaram; Adithya Peddapuram; Saibal Das

2014-01-01T23:59:59.000Z

175

DISPLACEMENT CONTROL OF HYDRAULIC ACTUATORS USING A PASSIVITY BASED NONLINEAR CONTROLLER  

E-Print Network (OSTI)

/motor is lower than the control bandwidth of a valve. In addition, one variable flow source can drive only one control inputs, including the displacement of a variable displacement pump, the opening area reduction. The proportional valve will follow a high frequency opening profile, while the nominal valve

Li, Perry Y.

176

On the Origin of Large Interstitial Clusters in Displacement Cascades  

SciTech Connect

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

177

Calculations of dynamical properties of skutterudites: Thermal conductivity, thermal expansivity, and atomic mean-square displacement  

SciTech Connect

While the thermal conductivity of the filled skutterudites has been of great interest it had not been calculated within a microscopic theory. Here a central force, Guggenheim-McGlashen, model with parameters largely extracted from first-principles calculations and from spectroscopic data, specific to LaFe{sub 4} Sb{sub 12} or CoSb{sub 3} , is employed in a Green-Kubo/molecular dynamics calculation of thermal conductivity as a function of temperature. We find that the thermal conductivity of a filled solid is more than a factor of two lower than that of an unfilled solid, assuming the framework interatomic force parameters are the same between filled and unfilled solids, and that this decrease is almost entirely due to the cubic anharmonic interaction between filling and framework atoms. In addition, partially as a test of our models, we calculate thermal expansivity and isotropic atomic mean-square displacements using both molecular dynamics and lattice dynamics methods. These quantities are in reasonable agreement with experiment, increasing our confidence in the anharmonic parameters of our models. We also find an anomalously large filling-atom mode Gruneisen parameter that is apparently observed for a filled skutterudite and is observed in a clathrate.

Bernstein, N.; Feldman, J. L.; Singh, David J.

2010-01-01T23:59:59.000Z

178

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

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

179

Control scheme for power modulation of a free piston Stirling engine  

SciTech Connect

This patent describes a control system for power modulation of a free piston Stirling engine. It comprises: a receiver adapted to absorb solar energy and to convert the solar energy into thermal energy; a power module comprising a displacer type free piston Stirling engine having power and displacer pistons, and a linear alternator connected to the engine, the power module adapted to receive and to convert the thermal energy into electrical energy; a utility grid adapted to receive the electrical energy from the power module; an autotransformer connected in series between the linear alternator and the grid, the autotransformer being connected by feedback means to the receiver so that a change in solar insolation to the receiver varies the autotransformer turns ratio thus changing the linear alternator's terminal voltage and changing power piston and displacer piston amplitude accordingly to maintain a high engine efficiency cycle over a large operating range for solar insolation absorbed by the receiver.

Dhar, M.

1989-10-17T23:59:59.000Z

180

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

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

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

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

DOE's Office of Science Sets up Program to Aid Scientists Displaced DOE's Office of Science 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 - 10:08am Addthis WASHINGTON, DC -- The Department of Energy's (DOE) Office of Science has established a program to assist scientists displaced by the effects of Hurricane Katrina. "Our colleagues in science have historically been a close-knit, generous community," wrote Dr. Raymond L. Orbach, director of DOE's Office of Science, in a letter describing the program to: universities and colleges, including those in Alabama, Louisiana and Mississippi; professional scientific societies; other government science funding agencies; and DOE National Laboratories. "The Office of Science

182

Fact #663: February 21, 2011 Clean Cities Program Petroleum Displacement Estimates for 2009  

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

Each year, estimates are made of the amount of petroleum that is displaced by the efforts of the U.S. Department of Energy's Clean Cities Program. These estimates are based on data provided by...

183

Design and fabrication of force sensing robotic foot utilizing the volumetric displacement of a hyperelastic polymer  

E-Print Network (OSTI)

This thesis illustrates the fabrication and characterization of a footpad based on an original principle of volumetric displacement sensing. It is intended for use in detecting ground reaction forces in a running quadrupedal ...

Estrada, Matthew A

2012-01-01T23:59:59.000Z

184

Composite force sensing foot utilizing volumetric displacement of a hyperelastic polymer  

E-Print Network (OSTI)

In this thesis, I will describe the fabrication and characterization of a footpad based on an original principle of volumetric displacement sensing. It is intended for use in detecting ground contact forces in a running ...

Chuah, Meng Yee (Meng Yee Michael)

2012-01-01T23:59:59.000Z

185

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

186

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

SciTech Connect

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

187

Enhanced oil recovery from heavy oil reservoirs utilizing a displacement agent  

Science Journals Connector (OSTI)

An oil displacement agent consisting of nonionic and anionic surfactants and emulsion stabilizers has been developed to enhance oil recovery from heavy oil reservoirs. The experimental results show that the pr...

Fusheng Zhang; Jian Ouyang; Xintong Ma

2012-07-01T23:59:59.000Z

188

Multi-level analysis of field synergy in the displacement mechanisms of heavy oil thermal recovery  

Science Journals Connector (OSTI)

One of the major problems of heavy oil thermal recovery is the inadequacy of understanding the multi-field coupling displacement mechanisms to improve the oil production and extraction ratio. From the perspect...

Yang Liu; Qinglin Cheng; Xuxu Wang; Xinyao Xiang

2014-02-01T23:59:59.000Z

189

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

190

The Safe Use of Sodium Hydride on Scale: The Process Development of a Chloropyrimidine Displacement  

Science Journals Connector (OSTI)

The Safe Use of Sodium Hydride on Scale: The Process Development of a Chloropyrimidine Displacement ... Global Pharmaceutical Commercialization, Merck Manufacturing Division, Rahway, New Jersey, 07065 ... This article is part of the Safety of Chemical Processes 11 special issue. ...

Jamie M. McCabe Dunn; Alicia Duran-Capece; Brendan Meehan; James Ulis; Tetsuo Iwama; Guy Gloor; George Wong; Evan Bekos

2011-09-30T23:59:59.000Z

191

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

192

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

193

Energetically Biased DNA Motor Containing a Thermodynamically Stable Partial Strand Displacements State  

Science Journals Connector (OSTI)

Current work in tuning DNA kinetics has focused on changing toehold lengths and DNA concentrations. However, kinetics can also be improved by enhancing the completion probability of the strand displacement process. Here, we execute this strategy by ...

Preston Boone Landon; Joon Lee; Michael Taeyoung Hwang; Alexander H Mo; Chen Zhang; Anthony Neuberger; Brian Meckes; Jose Juan Gutierrez; Gennadi Glinsky; Ratnesh Lal

2014-10-27T23:59:59.000Z

194

Title of Dissertation: THE RADIO-FREQUENCY SINGLE-ELECTRON TRANSISTOR DISPLACEMENT DETECTOR  

E-Print Network (OSTI)

as a benchmark for researchers involved in ultra-sensitive force and displacement detection. In this thesis, I-plane mode of a nanomechanical resonator down to a temperature of 56 mK. At this temperature

195

Turbulent Patch Identification in Microstructure Profiles: A Method Based on Wavelet Denoising and Thorpe Displacement Analysis  

Science Journals Connector (OSTI)

A new method based on wavelet denoising and the analysis of Thorpe displacements dT profiles is presented for turbulent patch identification. Thorpe profiles are computed by comparing the observed density profile ?(z) and the monotonic density ...

Jaume Piera; Elena Roget; Jordi Catalan

2002-09-01T23:59:59.000Z

196

Displacement, politics and governance : access to low-income housing in a Beirut suburb  

E-Print Network (OSTI)

Lebanon witnessed large-scale phases of internal displacement during and after its civil war (1975-1990). This study analyzes access to low-income housing for a Lebanese Shiites group which has already experienced two ...

Bou Akar, Hiba

2005-01-01T23:59:59.000Z

197

Simulation of Oil Displacement from Oil-Wet Cores by Interfacial Tension Reduction and Wettability Alteration  

E-Print Network (OSTI)

Waterflooding in oil-wet naturally fractured reservoirs is not successful because the ability of matrix blocks to imbibe the injected water and displace the oil into the fracture system is poor. Chemical enhanced oil recovery methods...

Kalaei, Mohammad Hosein

2010-01-29T23:59:59.000Z

198

Analyses of surface displacements of Zircaloy fuel cladding in the HOBBIE creepdown irradiation experiments  

SciTech Connect

This report presents descriptions and results for seven of the eight in-reactor creepdown tests of Zircaloy fuel cladding. These tests, part of a joint program between the US NRC and Energieonderzoek Centrum Nederland, were conducted to study the behavior of Zircaloy fuel cladding under conditions that approximate those found in an operating pressurized-water power reactor. We present radial surface displacements as functions of time, average diametral or circumferential strains as a function of time, and isochronal deformation surfaces. These tests were conducted at 343/sup 0/C with external pressures from 13.3 to 18.7 MPa. Three of the specimens were subjected to stress reversal during their test runs, after which they were pressurized internally to pressures from 3.5 to 6.9 MPa. Fast flux (>1.0 MeV (0.16 pJ)) ranged from 3.8 x 10/sup 17/ to 5.0 x 10/sup 17/ n/(m/sup 2/.s). The most important conclusion to be drawn from this study involves the deformation of the cladding during testing. Contrary to similar tests conducted out of reactor, the in-reactor specimens did not deform uniformly, that is, by diametral contraction and smooth ovalization. Rather, the deformation surfaces were nonuniform - hills and valleys formed at irregular intervals. This implies that conventional concepts of creep rate and simplified modeling procedures are insufficient for predicting cladding behavior. Sufficient data have been collected in this program to supply modelers with detailed, virtually hour by hour, descriptions of the cladding surface shapes. From these data new interpretations can be derived to predict cladding behavior.

Hobson, D.O.; Thoms, K.R.; Dodd, C.V.; van der Kaa, T.

1981-03-01T23:59:59.000Z

199

Microscopic Scatterer Displacements Generate the 1f Resistance Noise of H in Pd  

Science Journals Connector (OSTI)

The resistance changes generated by individual microscopic displacements due to dissolved hydrogen ions hopping between neighboring sites within palladium films create intense 1f noise at low temperature. Crossover to one-dimensional diffusion-mediated number-fluctuation noise occurs for T?150 K. The measured resistance change per proton displacement is comparable to the resistance per proton as predicted by applicable quantum-interference theories.

Neil M. Zimmerman and Watt W. Webb

1988-08-15T23:59:59.000Z

200

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

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

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

202

High power  

Science Journals Connector (OSTI)

... 1970s technomanic projects such as nuclear power stations were still in vogue. Environmentalists argued that solar power seemed a far safer, cheaper and reassuringly low-tech power source. The technomaniacs ... tech power source. The technomaniacs, fearing that they were losingthis argument, sought to hijack solar power themselves. They proposed an enormously expensive and complicated ...

David Jones

1994-03-03T23:59:59.000Z

203

Power Marketing  

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

UGPS' Marketing Service Area Power Marketing As a marketer of Federal power in the Upper Great Plains Region, the Power Marketing staff provides a variety of services for customers...

204

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...

205

FIELD TRIALS OF NEWLY DEVELOPED POSITIVE DISPLACEMENT SUBMERSIBLE PUMP  

SciTech Connect

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, but has shown the ability to reduce costs, and increase production, if run times can be improved. 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. PSI and Beard Oil intend to continue testing the pump with non-government funding. The testing to date did not uncover any fundamental problems that would preclude the widespread use of this pump, and as an operator, I believe that with further improvement and testing, the pump can have a significant impact on stripper well costs. 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 the production environment found at the Weber field and in CMB 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

2003-10-01T23:59:59.000Z

206

FIELD TRIALS OF NEWLY DEVELOPED POSITIVE DISPLACEMENT SUBMERSIBLE PUMP  

SciTech Connect

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

207

Lighting Research Group: Facilities: Power Analyzer  

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

Power Analyzer Power Analyzer Power Analyzer power analyzer Gonio-photometer | Integrating sphere | Power analyzer | Spectro-radiometer A power analyzer is a very necessary tool for lighting research. With the power analyzer we are able to monitor the input voltage to the lamp as well as the input power and current. The amount of power a lamp or a lamp-ballast combination uses is very important when determining its efficiency. It is also important to monitor the input voltage to make sure it doesn't vary. This can affect the light output of a lamp greatly. With the power analyzer we can also measure things like the power factor, harmonic distortion, and current crest factor of some lamps. These measurements tell us how well a lamp is working. For example, a high power

208

DOE's Office of Science Sets Up Program to Aid Scientists Displaced by  

Office of Science (SC) Website

DOE's DOE's Office of Science Sets Up Program to Aid Scientists Displaced by Hurricane Katrina News Featured Articles Science Headlines 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Presentations & Testimony News Archives Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 09.09.05 DOE's Office of Science Sets Up Program to Aid Scientists Displaced by Hurricane Katrina Print Text Size: A A A Subscribe FeedbackShare Page WASHINGTON, DC - The Department of Energy's (DOE) Office of Science has established a program to assist scientists displaced by the effects of Hurricane Katrina. "Our colleagues in science have historically been a close-knit, generous community," wrote Dr. Raymond L. Orbach, director of DOE's Office of

209

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

210

Alternative Fuels Data Center: Propane Powers Airport Shuttles in New  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Propane Powers Airport Propane Powers Airport Shuttles in New Orleans to someone by E-mail Share Alternative Fuels Data Center: Propane Powers Airport Shuttles in New Orleans on Facebook Tweet about Alternative Fuels Data Center: Propane Powers Airport Shuttles in New Orleans on Twitter Bookmark Alternative Fuels Data Center: Propane Powers Airport Shuttles in New Orleans on Google Bookmark Alternative Fuels Data Center: Propane Powers Airport Shuttles in New Orleans on Delicious Rank Alternative Fuels Data Center: Propane Powers Airport Shuttles in New Orleans on Digg Find More places to share Alternative Fuels Data Center: Propane Powers Airport Shuttles in New Orleans on AddThis.com... Feb. 19, 2011 Propane Powers Airport Shuttles in New Orleans D iscover how the New Orleans airport displaced over 139,000 gallons of

211

Solar Power for Autonomous Floats  

Science Journals Connector (OSTI)

Advances in low-power instrumentation and communications now often make energy storage the limiting factor for long-term autonomous oceanographic measurements. Recent advances in photovoltaic cells, with efficiencies now close to 30%, make solar ...

Eric A. DAsaro

2007-07-01T23:59:59.000Z

212

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

E-Print Network (OSTI)

THE DISPLACEMENT OF OIL FROM POROUS MEDIA BY IN-SITU COMBUSTION A Thesis by JOHN T. CORCORAN Submitted to the Graduate College of Texas AgcM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December... f970 Major Subject: PETROLEUM ENGINEERING TIRE DISPLACEMENT OF OIL FROM POROUS MEDIA BY IN-SITU COMBUSTION A Thesis JOHN T. CORCORAN Approved as to style and content by: (C i man of Committee) ( em er (Hea. d of Department (Member) December...

Corcoran, John Thomas

1970-01-01T23:59:59.000Z

213

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

214

Performance characterization of an internsity-modulated fiber optic displacement sensor  

SciTech Connect

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

215

First-order displacement of a magnetic field line in an Elmo bumpy torus  

Science Journals Connector (OSTI)

A perturbation procedure is employed to derive a formula for the field-line displacement in a magnetic configuration consisting of a dominant (unperturbed) field with closed field lines and a small additional (perturbation) field that causes the perturbed field lines to fail to close on themselves. An expression for the spatial displacement of the perturbed field line per circuit, obtained in a first-order perturbation approximation in the Clebsch representation, is given in terms of an action integral representing a longitudinal adiabatic invariant. Numerical results are also presented to compare the first-order approximation with the exact relation.

D. K. Lee; C. L. Hedrick; J. D. Callen

1986-04-01T23:59:59.000Z

216

Static and dynamic analysis of articulated and continuous framed structures by the matrix displacement method  

E-Print Network (OSTI)

" indicate that statl cai'y, a planar frame &nay be , n yr d as a !3lnnar trus. a" i&at ns the nodal displacements are c&, ?. reed; horn ver, this may not be adequate for the evaluation of ei&. ?!& xt stressea. 'i'he DLF m n different for dif parent types... accurate solutions. 10 Paul Tustg~rti n (14) formulated, in matrix form, the . ystem of slope deflection equations, established for a linear fraaie vrithout considering joint displacements, mhlch is;idopted and solved by iterative techniques...

Baskurt, Fahri Yuce

2012-06-07T23:59:59.000Z

217

Power Line Calculator for DOS  

SciTech Connect

The Power Line Calculator (PLC) for DOS, version 1.0, is a program that describes the electrical characteristics of a transmission or distribution system given user-defined input. This input may consist of a combination of operating currents and phases, symmetric components, power factor, and real or reactive power. The program also allows the user to designate whether currents are present on the system neutral or in the ground. The PLC assumes that any value entered by the user remains fixed (e.g., phase current, power factor), and for underdetermined systems, basic default assumptions are incorporated: the power factor is held at or near 1.0, the net phase current is kept at or near zero, and the phase conductor currents are kept balanced. The program operates under PC/MS-DOS version 3.3 or later, and the output is available in both tabular and graphic formats.

Silva, J.M. (Enertech Consultants, Campbell, CA (United States))

1992-11-01T23:59:59.000Z

218

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...

220

Wind Power  

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

Wind Power As the accompanying map of New Mexico shows, the best wind power generation potential near WIPP is along the Delaware Mountain ridge line of the southern Guadalupe...

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

Where Now With Nuclear Power?  

Science Journals Connector (OSTI)

... disputes, the continuing breakdown of plant, increasing oil prices and soaring capital costs of nuclear power stations have all upset the economic balance between the four electricity generating fuels- coal, ... the chief factors in the energy equation is the fact that the capital cost of nuclear power stations is much greater than that of oil-fired stations: for about 200 million ...

1971-03-19T23:59:59.000Z

222

Nuclear Power and its Development  

Science Journals Connector (OSTI)

... make the effect on the coal industry the deciding factor in determining the development of nuclear power. The implications of technological change have been ignored, as has the effect of development ... been ignored, as has the effect of development on the cost of electricity supplied by nuclear power-stations, which Sir Christopher Hinton stressed very strongly in his Axel Ax:son Johnson ...

1959-08-08T23:59:59.000Z

223

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

224

Character displacement and the evolution of mate choice: an artificial neural network approach  

E-Print Network (OSTI)

Character displacement and the evolution of mate choice: an artificial neural network approach preferences for aspects of conspecific male signals. We used artificial neural network models to simulate varied in their preferences for aspects of conspecific male signals. When we tested networks

Ryan, Michael J.

225

ENERGY ANALYSISF FOR WORKSHOPS WITH FLOOR-SUPPLY DISPLACEMENT VENTILATION UNDER THE U.S. CLIMATES  

E-Print Network (OSTI)

use more fan and boiler energy but less chiller energy than the mixing ventilation system. The total in order to handle the high cooling loads found in U.S. buildings. Thus, the displacement ventilation, the chiller efficiency is increased. Besides, the

Chen, Qingyan "Yan"

226

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.

227

Displacement damage induce degradation of COTS array \\{CCDs\\} irradiated by neutron beams from a nuclear reactor  

Science Journals Connector (OSTI)

Abstract The experiments of displacement damage effects on COTS array charge coupled devices (CCDs) induced by neutron irradiation from a nuclear reactor are presented. The charge transfer inefficiency (CTI), saturation output signal voltage (VS), dynamic range (DR), dark signal, and camera imaging quality versus neutron fluence are investigated. The degradation mechanisms of the \\{CCDs\\} irradiated by reactor neutron beams are also analyzed. The CTI increase due to neutron displacement damage appears to be proportional to displacement damage dose. The experiments show that VS degradation induced by neutron irradiation is much less than that induced by gamma irradiation. The dark images from the \\{CCDs\\} irradiated by neutrons are given to investigate dark signal degradation. The degradation forms and mechanisms of the camera imaging quality are very different between the reactor neutron displacement damage and the gamma total ionization dose damage. The three samples were exposed by 1MeV neutron-equivalent fluences of 11011, 51011, and 11012n/cm2, respectively. A sample was exposed by 1MeV neutron-equivalent fluences up to 21013n/cm2, and the CCD is a functional failure after irradiation.

Wang Zujun; Chen Wei; Xiao Zhigang; Liu Minbo; Huang Shaoyan; He Baoping; Luo Tongding

2014-01-01T23:59:59.000Z

228

AN ITERATIVE PERTURBATION METHOD FOR THE PRESSURE EQUATION IN THE SIMULATION OF MISCIBLE DISPLACEMENT  

E-Print Network (OSTI)

AN ITERATIVE PERTURBATION METHOD FOR THE PRESSURE EQUATION IN THE SIMULATION OF MISCIBLE by water- flooding. Since the tertiary process requires expensive chemicals and the performance of the displacement is not guaranteed, its numerical simulation plays an important role in determining whether enough

Lin, Ping

229

"giant faults" does not lead to total failure, because the displacement equivalent to the fault  

E-Print Network (OSTI)

"giant faults" does not lead to total failure, because the displacement equivalent to the fault changes in physical properties by cold working seen in Fig. 1 are attributed to this accumulated nanoscale as supporting material on Science Online. 5. T. W. Duerig, A. R. Pelton, in Materials Properties Handbook

Rubloff, Gary W.

230

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

E-Print Network (OSTI)

by insulating the atmosphere from the substantial heat capacity of the ocean. When sea ice is absent, the oceanAbrupt climate shifts in Greenland due to displacements of the sea ice edge Camille Li,1 David S that a reduction in sea ice extent in the North Atlantic produces a climatic response consistent with abrupt

Schrag, Daniel

231

A displacement-based method for predicting plasticity-induced fatigue crack closure  

SciTech Connect

A numerical method for predicting closure and its effects on thermomechanical crack growth has been developed. A finite element model, using linear-elastic fracture mechanics shape functions, is employed to predict crack tip displacements. The effective changes in stress intensity, and therefore crack growth, are obtained from the minimum and maximum crack tip displacement predictions. When a flaw is loaded in Mode 1, a ligament of material ahead of the flaw yields, and a maximum crack tip displacement is computed. Upon unloading, plastically deformed material from prior plastic zones acts to limit the minimum displacements of the crack tip. The material is modeled as elastic-perfectly plastic. The yield strength of the material is varied based on the degree of constraint. The upper limit of constraint is a plane strain condition while the lowest constraint is a plane stress condition. The level of constraint is predicted by relating the stress intensity to the thickness of the component. Temperatures also affect yield strength, along with stiffness, and can cause the plastic zone to expand due to creep. During variable-amplitude loadings, and/or temperature changes, the irregular shape of the wake can be accommodated with this numerical procedure. The method has proven to accurately account for load interaction effects such as delayed retardation, crack arrest, initial accelerations following overloads, and the transient growth and stabilization of closure level with number of overloads.

Pawlik, M.E.; Saff, C.R.

1999-07-01T23:59:59.000Z

232

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

233

Under consideration for publication in J. Fluid Mech. 1 Volume Displacement Effects During Bubble  

E-Print Network (OSTI)

Under consideration for publication in J. Fluid Mech. 1 Volume Displacement Effects During Bubble bubbles are entrained in a traveling vortex ring, it has been shown that even at extremely low volume the bubbles are assumed subgrid and momentum point-sources are used to model their effect on the flow

Apte, Sourabh V.

234

Study on the Vibration Displacement Distribution of a Circular Ultrasonic Motor Stator  

E-Print Network (OSTI)

In this paper is presented a theoretical consideration on the stator's displacement distribution, which is one of the most important problems in defining the structure of the circular ultrasonic motor stator. The results are compared with results obtained utilizing holographic interferometer, laser vibrometer and a FEM (finite element method) simulation. They are in a good agreement with each other.

Ri, Chol-Su; Kim, Chol-Su; Im, Song-Jin

2014-01-01T23:59:59.000Z

235

Hemodynamic changes during displacement of the beating heart by the Utrecht Octopus method  

Science Journals Connector (OSTI)

Background. Coronary bypass grafting of posterior circumflex branches requires full displacement of the heart (apex pointing ventrally), which, in the beating heart, results in an arterial pressure drop. We analyzed its origin. Methods. To facilitate displacement, the Utrecht Octopus method was applied in 8 anesthetized beta-blocked pigs and the beating heart was fully retracted. Results. Displacement decreased stroke volume from 75 17 mL (mean standard deviation) to 43 13 mL (p < 0.001), a 44% 3% decrease that resulted in a decrease in cardiac output by 32% 5% (mean standard error of the mean; p < 0.001), a decrease in mean arterial pressure by 26% 5% (p < 0.01), and an increase in heart rate by 26% 6% (p < 0.01). Right ventricular end-diastolic pressure increased from 5 1 to 8 1 mm Hg (p < 0.01). Twenty degrees head-down tilt normalized cardiac output and mean arterial pressure. Right ventricular end-diastolic pressure increased to 10 2 mm Hg (p < 0.001) and left ventricular end-diastolic pressure to 11 3 mm Hg (p < 0.01). Conclusions. Displacement of the beating heart in the pig induced a 44% drop in stroke volume, which is attributed to biventricular interference with pump function. The Trendelenburg maneuver reestablished the control circulatory status at the expense of augmented right and left ventricular preloads and an increased heart rate.

Paul F. Grndeman; Cornelius Borst; Joost A. van Herwaarden; Hendricus J. Mansvelt Beck; Erik W.L. Jansen

1997-01-01T23:59:59.000Z

236

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

237

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

238

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.

239

Douglas Factors  

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

The Merit Systems Protection Board in its landmark decision, Douglas vs. Veterans Administration, 5 MSPR 280, established criteria that supervisors must consider in determining an appropriate penalty to impose for an act of employee misconduct. These twelve factors are commonly referred to as Douglas Factors and have been incorporated into the Federal Aviation Administration (FAA) Personnel Management System and various FAA Labor Agreements.

240

Nuclear Powers Benefits  

Science Journals Connector (OSTI)

Nuclear Powers Benefits ... Using nuclear power in place of fossil-fuel energy sources, such as coal, has prevented some 1.8 million air-pollution-related deaths and 64 gigatons of carbon emissions globally over the past four decades, a study concludes. ... These estimates suggest policymakers should continue to rely on and expand nuclear power in place of fossil fuels to mitigate climate change, the authors say (Environ. ...

MARK SCHROPE

2013-04-08T23:59:59.000Z

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

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

242

Dispossession, displacement and resistance: Artisanal miners in a gold concession in South-Kivu, Democratic Republic of Congo  

Science Journals Connector (OSTI)

Abstract This article reports on an empirical study of the relationship between artisanal and industrial mining at the Twangiza gold concession in South Kivu Province, Democratic Republic of Congo (DRC). The setting is a post-conflict context where artisanal mining activities have supported livelihoods for several decades, but where the arrival of a multinational company, with explicit backing from the national government, has caused dispossession and displacement and altered local power relations, leaving former artisanal miners with few alternatives for making a living. Although Congolese law recognizes artisanal mining and policies have been proposed to formalize and support this sector, reality is often very different and artisanal miners frequently clash with industrial enterprises. This article argues that, in order to understand the dynamics underlying these clashes, closer attention needs to be paid to the practices and discourses of the artisanal miners themselves: how do they conceptualize notions such as property, legitimacy and livelihood, and what is their outlook on development? The empirical analysis shows how miners in Twangiza resist dispossession by the multinational corporation in both words and actions.

Sara Geenen

2014-01-01T23:59:59.000Z

243

Particle Number and Size Emissions from a Small Displacement Automotive Diesel Engine: Bioderived vs Conventional Fossil Fuels  

Science Journals Connector (OSTI)

General Motors Powertrain Europe, Corso Castelfidardo 36, 10138 Torino, Italy ... The experiments were carried out at the Politecnico di Torino on a modern small displacement, turbocharged, common-rail Euro 5 direct injection (DI) automotive diesel engine, one of the smallest engines on the market, considering unit displacement. ...

Federico Millo; Davide Simone Vezza; Theodoros Vlachos; Andrea De Filippo; Claudio Ciaravino; Nunzio Russo; Debora Fino

2012-01-11T23:59:59.000Z

244

Chiral r-Substituted Carbonyls and Alcohols from the SN2 Displacement of Cuprates on Chiral Carbonates: An Alternative  

E-Print Network (OSTI)

of reactions, based on the anti-selective SN2 addition of cuprates to allylic carbonates, transforms alkynesChiral r-Substituted Carbonyls and Alcohols from the SN2 Displacement of Cuprates on Chiral freedom of the vinyl group in 6 during the SN2 displacement step; the stereoselectivity of the cuprate

Spino, Claude

245

Nuclear Power  

Science Journals Connector (OSTI)

Nuclear Power ... THIS WEEKS issue contains six letters on nuclear power, a representative sample of the letters C&EN received in response to the editorial, Resist Hysteria, I wrote shortly after the earthquake and tsunami in Japan devastated the Fukushima Daiichi Nuclear Power Station (C&EN, March 21, page 5). ... Four of the six letters take sharp issue with the primary point I made in the editorial, which was that, despite the severity of the situation in Japan, nuclear power remains an essential component of our overall energy mix for the near to mid-term because it will help us avert the worst impacts of global climate disruption. ...

RUDY M. BAUM

2011-05-09T23:59:59.000Z

246

Power LCAT  

SciTech Connect

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

247

Yakama Power  

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

Power Administration FROM: J.D. Williams Attorney RE: Initial Comments on Draft Load Following Regional Dialogue Contract Template Dear Mark, Please allow these comments...

248

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

249

Comparing rig power transmission systems  

SciTech Connect

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

250

Factors Impacting Decommissioning Costs - 13576  

SciTech Connect

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

251

Electric power substation capital costs  

SciTech Connect

The displacement or deferral of substation equipment is a key benefit associated with several technologies that are being developed with the support of the US Department of Energy`s Office of Utility Technologies. This could occur, for example, as a result of installing a distributed generating resource within an electricity distribution system. The objective of this study was to develop a model for preparing preliminary estimates of substation capital costs based on rudimentary conceptual design information. The model is intended to be used by energy systems analysts who need ``ballpark`` substation cost estimates to help establish the value of advanced utility technologies that result in the deferral or displacement of substation equipment. This cost-estimating model requires only minimal inputs. More detailed cost-estimating approaches are recommended when more detailed design information is available. The model was developed by collecting and evaluating approximately 20 sets of substation design and cost data from about 10 US sources, including federal power marketing agencies and private and public electric utilities. The model is principally based on data provided by one of these sources. Estimates prepared with the model were compared with estimated and actual costs for the data sets received from the other utilities. In general, good agreement (for conceptual level estimating) was found between estimates prepared with the cost-estimating model and those prepared by the individual utilities. Thus, the model was judged to be adequate for making preliminary estimates of typical substation costs for US utilities.

Dagle, J.E.; Brown, D.R.

1997-12-01T23:59:59.000Z

252

DOE Hydrogen and Fuel Cells Program Record 5003: Carbon Displacement Using Net-Zero Carbon Sources  

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

3 Date: January 4, 2006 3 Date: January 4, 2006 Title: Carbon Displacement Using Net-Zero Carbon Sources Originator: Elvin Yuzugullu Approved by: JoAnn Milliken Date: April 4, 2006 Item: "... if 175 billion kWh of grid electricity (10% of the growth of the electric generation market in 2025) is replaced by fuel cells operating on hydrogen at 50% LHV efficiency, about 10.5 million tons of hydrogen would be needed. If this hydrogen were made from a non-carbon (e.g. nuclear) or net-zero carbon (e.g. biomass, coal with carbon sequestration) source, then it could potentially displace about 27.5 million tons of carbon." Calculations/References: Analysis by TIAX for DOE, August 24, 2005: * "10.5 million tons of hydrogen" Required H 2 = 175 billion kWhe

253

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

254

The use of air injection to improve the double displacement processes  

SciTech Connect

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

255

Graphically oriented method for obtaining atomic displacement fields in crystals from irreducible representations of space groups  

Science Journals Connector (OSTI)

A method for obtaining distortion fields in a crystal from a given irreducible representation of the underlying space group is described. The method, based on projection operators of group theory, is graphically oriented and therefore calculation-free. For an example (space group P421m), complete sets of representation matrices are analytically calculated for all irreducible representations which correspond to all wave vectors of the form k=(q,q,0). All 96 linear independent atomic displacement modes in the (331) supercell, which are induced by the two irreducible representations with k=(13,13,0), are explicitly determined: the obtained atomic displacement fields are plane waves with wave vector k.

Jrgen K. Gutmann and Horst Bhm

2000-06-01T23:59:59.000Z

256

Spatial Periodic Forcing Can Displace Patterns It Is Intended to Control  

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

257

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

E-Print Network (OSTI)

DISPLACEMENT OF OIL FROM RESERVOIR ROCK USING HIGH MOLECULAR MEIGHT POLYMER SOLUTIONS A Thesis by HOUSHANG BARZI Submitted to the Graduate College of Texas AIM University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE Aup;ust l972 Major Subject; Petroleum Engineering DISPLACENJENT OF OIL FROM RESERVOIR ROCK USING HIGH MOLECULAR WEIGHT POLYMER SOLUTIONS A Thesis by HOUSHANG BARZI Approved as +o style and content by~ airman of Commi+tee Member ~ed f' D p...

Barzi, Houshang

1972-01-01T23:59:59.000Z

258

TSC plasma halo simulation of a DIII-D vertical displacement episode  

SciTech Connect

A benchmark of the Tokamak Simulation Code (TSC) plasma halo model has been achieved by calibration against a DIII-D vertical displacement episode (VDE) consisting of vertical drift, thermal quench, and current quench. Inclusion of a 1-to 4-eV halo surrounding the main plasma was found to be necessary to match simulation and experimental results for plasma current decay, trajectory, toroidal and poloidal vessel currents, and magnetic probe and flux loop values for the entire VDE.

Sayer, R.O.; Peng, Y.K.M. [Oak Ridge National Lab., TN (United States); Jardin, S.C. [Princeton Univ., NJ (United States). Plasma Physics Lab.; Kellman, A.G.; Wesley, J.C. [General Atomics, San Diego, CA (United States)

1993-01-01T23:59:59.000Z

259

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

260

Solubility and displacement behavior of a viscous crude with CO[sub 2] and hydrocarbon gases  

SciTech Connect

The West Sak reservoir on the Alaskan North Slope contains an estimated 15 to 25 billion bbl of low-temperature, viscous crude. The reservoir has promising development potential by means of a gas injection process. An experimental study of the solubility and displacement behavior of West Sak oil with CO[sub 2] and hydrocarbon gases shows simple black-oil to complex, multiphase equilibrium behaviors.

DeRuiter, R.A.; Nash, L.J.; Singletary, M.S.

1994-05-01T23:59:59.000Z

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.


261

Solar Power  

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

Solar Power Solar Power Project Opportunities Abound in the Region The WIPP site is receives abundant solar energy with 6-7 kWh/sq meter power production potential As the accompanying map of New Mexico shows, the WIPP site enjoys abundant year-round sunshine. With an average solar power production potential of 6-7 kWh/sq meter per day, one exciting project being studied for location at WIPP is a 30-50 MW Solar Power Tower: The American Solar Energy Society (ASES) is is a national trade association promoting solar energy as a clean source of electricity, and provides a comprehensive resource for additional information. DOE's Office of Energy Efficiency and Renewable Energy is also a comprehensive resource for more information on renewable energy.

262

Power system  

DOE Patents (OSTI)

A power system includes a prime mover, a transmission, and a fluid coupler having a selectively engageable lockup clutch. The fluid coupler may be drivingly connected between the prime mover and the transmission. Additionally, the power system may include a motor/generator drivingly connected to at least one of the prime mover and the transmission. The power-system may also include power-system controls configured to execute a control method. The control method may include selecting one of a plurality of modes of operation of the power system. Additionally, the control method may include controlling the operating state of the lockup clutch dependent upon the mode of operation selected. The control method may also include controlling the operating state of the motor/generator dependent upon the mode of operation selected.

Hickam, Christopher Dale (Glasford, IL)

2008-03-18T23:59:59.000Z

263

Power reduction techniques for microprocessor systems  

Science Journals Connector (OSTI)

Power consumption is a major factor that limits the performance of computers. We survey the state of the art in techniques that reduce the total power consumed by a microprocessor system over time. These techniques are applied at various ... Keywords: Energy dissipation, power reduction

Vasanth Venkatachalam; Michael Franz

2005-09-01T23:59:59.000Z

264

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

265

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

266

Strathclyde powerS ahead  

E-Print Network (OSTI)

Strathclyde powerS ahead the future of renewable energy SHARING AND ENHANCING RESEARCH Discover the vision of Principal Professor Jim McDonald THE FUTURE OF ENERGY Strathclyde pioneers renewableEdicinE Snapshot the reSearcher Following a decade of environmental research in her native egypt, nabila saleem

Mottram, Nigel

267

Power America  

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

Power America will focus on wide bandgap (WBG) semiconductors - the same materials used in LED light fixtures and many flat screen TVs. The Institute will use $70 million provided by the U.S. Department of Energy's Advanced Manufacturing Office to support and manage its programs over the next five years. This Institute is one of three new innovation hubs announced by President Obama in his 2013 State of the Union address and part of the National Network for Manufacturing Innovation (NNMI). Power America was formerly called the Next Generation Power Electronics National Manufacturing Innovation Institute.

268

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

269

Wind Power | Open Energy Information  

Open Energy Info (EERE)

Wind Power Wind Power Jump to: navigation, search Wind Power WIndfarm.Sunset.jpg Wind power is a form of solar energy.[1] Wind is caused by the uneven heating of the atmosphere by the sun, variations in the earth's surface, and rotation of the earth. Mountains, bodies of water, and vegetation all influence wind flow patterns[2], [3]. Wind energy (or wind power) describes the process by which wind is used to generate electricity. Wind turbines convert the energy in wind to electricity by rotating propeller-like blades around a rotor. The rotor turns the drive shaft, which turns an electric generator.[2] Three key factors affect the amount of energy a turbine can harness from the wind: wind speed, air density, and swept area.[4] Mechanical power can also be utilized directly for specific tasks such as

270

Power Projects  

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

Power Projects Power Projects Contact SN Customers Environmental Review-NEPA Operations & Maintenance Planning & Projects Power Marketing Rates You are here: SN Home page > About SNR Power Projects Central Valley: In California's Central Valley, 18 dams create reservoirs that can store 13 million acre-feet of water. The project's 615 miles of canals irrigate an area 400 miles long and 45 miles wide--almost one third of California. Powerplants at the dams have an installed capacity of 2,099 megawatts and provide enough energy for 650,000 people. Transmission lines total about 865 circuit-miles. Washoe: This project in west-central Nevada and east-central California was designed to improve the regulation of runoff from the Truckee and Carson river systems and to provide supplemental irrigation water and drainage, as well as water for municipal, industrial and fishery use. The project's Stampede Powerplant has a maximum capacity of 4 MW.

271

Power Struggle  

Science Journals Connector (OSTI)

Disparate forces such as hydraulic fracturing, or fracking, in the U.S.; the phaseout of nuclear power in Germany; and renewable energy promotion in Europe are conspiring to lessen ... ...

ALEX SCOTT

2013-12-09T23:59:59.000Z

272

Ocean governance in a competitive world. The BRIC countries as emerging maritime powersbuilding new geopolitical scenarios  

Science Journals Connector (OSTI)

Owing to their style and economic impact, Brazil, Russia, India and China (the BRIC countries) are destined to become relevant actors in the new ocean governance. The following working hypothesis is sustained: the BRIC countries, due to the potential of their maritime territories, can be considered to be emerging maritime powers capable of displacing some of the historical maritime powers. This would also entail a shift of strategic maritime space towards the southern hemisphere. Other emerging maritime scenarios associated with the BRIC countries include the Russian Arctic, and the Indo-Pacific ocean belt, or string of pearls, as it is known. Factors such as competitiveness, maritime leadership and ocean governance are thus placed in a new economic and political context where they might be redefined and adapted to the circumstances of the BRIC block and other emerging countries, the majority of which are subject to demographic pressure and a high degree of poverty. The most relevant conclusions point to the emergence of a new type of neo-navalism, on the one handa BRIC version of traditional sea power and, on the other, a possible threat to the EU's Integrated Maritime Policy under pressure from strong competitiveness in a highly internationalised environment, forcing changes in its original approach with its distinct social profiles and commitment to latest generation rights.

Juan L. Surez de Vivero; Juan C. Rodrguez Mateos

2010-01-01T23:59:59.000Z

273

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

274

Predicting anisotropic displacement parameters using molecular dynamics: density functional theory plus dispersion modelling of thermal motion in benzophenone  

Science Journals Connector (OSTI)

The potential for first-princples molecular dynamics simulations to predict thermal-motion parameters has been illustrated by good agreement between theoretical and neutron-diffraction-determined anisotropic displacement parameters of benzophenone.

Reilly, A.M.

2013-04-18T23:59:59.000Z

275

U.S. Solar Power Market  

SciTech Connect

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

276

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

277

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

SciTech Connect

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

278

Measurement of semiconductor local carrier concentration from displacement current-voltage curves with a scanning vibrating probe  

Science Journals Connector (OSTI)

A theoretical equation has been fitted to displacement current-voltage curves of semiconductor in order to obtain the local carrier concentration of the semiconductor. The distance between a semiconductor surface and a scanning probe is changed sinusoidally and is adjusted as small as a few nm at which tunneling current flows. Displacement current due to the change in electric flux from the semiconductor surface to the scanning probe flows periodically in accordance with the vibration of the scanning probe, and it is separated from tunneling current using a two-phase lock-in amplifier. The displacement current-probe voltage curve is analyzed by taking into account two-dimensional electric flux profile from the semiconductor surface. It is realized that the lateral resolution of the displacement current depends on the probe voltage and that it is between one-eighth and one-fifteenth smaller than the top radius of the probe since the depletion-layer width of the semiconductor is determined by the probe voltage, the distance, and the carrier concentration. The theoretical displacement current-voltage curves are in good agreement with the measurement in both voltage regions where the majority carriers are accumulated and depleted. The local carrier concentration can be determined by fitting the theoretical displacement current-voltage curve with the experimental results.

Yutaka Majima; Yutaka Oyama; Mitsumasa Iwamoto

2000-07-15T23:59:59.000Z

279

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

280

Numerical Simulation of Displacement Mechanisms for Enhancing Heavy Oil Recovery during Alkaline Flooding  

Science Journals Connector (OSTI)

In this paper, a simulation technique has been developed and successfully applied to numerically simulate the experimentally determined displacement mechanisms governing alkaline flooding for enhancing oil recovery in heavy oil reservoirs. ... (8-13) The existing simulation techniques used for alkaline flooding in the conventional oil reservoirs result in significant discrepancy between the experimental and simulated pressure drop for alkaline flooding in heavy oil reservoirs. ... Both the scientific findings and the newly developed simulation technique will facilitate simulating and designing field-scale alkaline flooding for heavy oil reservoirs. ...

Mohamed Arhuoma; Daoyong Yang; Mingzhe Dong; Heng Li; Raphael Idem

2009-10-15T23:59:59.000Z

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

Effectiveness of using a filling device with a displaced middle bunker  

SciTech Connect

A new method of charging coke ovens uses a 2-1 sequence with a displaced bunker. The coking and machine bunkers are emptied consistently into the oven chamber being charged. The charge gases are evacuated either simultaneously into both collecting mains, or alternately. The middle bunker is emptied into a chamber charged earlier using the end bunker chambers. The advantage of the new method lies in combining the consecutive emptying operations of bunkers 3 and 1 with the emptying of the middle bunker and with leveling the charge using the coke pushing machine. Time efficiency studies showed that the new method saves a great deal of time.

Konstantinov, E.N.; Martynenko, V.V.

1984-01-01T23:59:59.000Z

282

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

283

The investigation of exhaust powered, automotive air cycle air conditioning  

E-Print Network (OSTI)

Pressure Ratio Net Power Test Apparatus Available Turbocompressors Turbine and Compressor Wheels Mounted to Shaft Turbocompressor Mounted. to Exhaust Line Total System Test Rig Full Throttle Performance Curves Subscript 'c' Corrected Results 13 13... an automotive air cycle unit which employed a rotary- vaned compressor. The prototype unit developed. cooling over various engine speeds because of the compressor being a positive displacement type which developed fairly high pressures on the order of 40 psia...

Holley, James Andrew

1978-01-01T23:59:59.000Z

284

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

Science Journals Connector (OSTI)

...greenhouse gas and SO2 emissions...greenhouse gas (GHG) emissions...electricity generation, oil refining...from coal-fired power plants. Fig...electricity generation mixes as the...natural gas, coal, nuclear...hydroelectric power is assumed...

Jeremy J. Michalek; Mikhail Chester; Paulina Jaramillo; Constantine Samaras; Ching-Shin Norman Shiau; Lester B. Lave

2011-01-01T23:59:59.000Z

285

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

286

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

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

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

287

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

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

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

288

Star Power  

SciTech Connect

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

289

Solar Power  

Science Journals Connector (OSTI)

...of desert solar energy farm with 30 percent conversion...85 percent of the solar farm energy now reflected back...Washington, D.C. 20550. Wind Power Martin Wolf (19...counting the cost of the offshore platforms, would thus...15 billion. If these wind generators were placed...

Paul E. Damon

1974-08-09T23:59:59.000Z

290

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

291

Triangle zone and displacement transfer structures in the eastern Front Ranges, southern Canadian Rocky Mountains  

SciTech Connect

The geometry of a relict triangle zone at the boundary of the Foothills and Front Ranges in the southern Canadian Rocky Mountains is constrained by detailed surface mapping over 700 m of relief and by seismic reflection data. The geometry and progressive development of the triangle zone along a strike length of 15-20 km, in the displacement transfer zone between the Coleman and Misty thrusts, is illustrated using closely spaced balanced cross sections, palinspastic restorations, and s sequentially restored cross section. Structural geometries show that a northeast- (foreland-) verging, mainly carbonate wedge of Mississippian to Triassic rock was inserted along a major upper detachment zone in shale, near the base of the Jurassic-Cretaceous clastic package. This was accompanied by southwest- (hinterland-) verging displacements along the upper detachment zone, tectonic thickening of the clastic package exceeding 200%, and backthrusting. Later northeast-verging deformation slightly modified the triangle zone by steepening structures, tightening folds, and minor thrusting. Recognition of relict triangle zones within the fold and thrust belt may document important changes in the rate of thrust front advancement, and aid in the delineation of potential hydrocarbon traps, similar to those discovered along the present-day thrust-belt margin in the southern Canadian Rocky Mountains.

Sanderson, D.A. (Petrel Robertson Ltd., Calgary, Alberta (Canada)); Spratt, D.A. (Univ. of Calgary, Alberta (Canada))

1992-06-01T23:59:59.000Z

292

Boundary displacement measurements using multi-energy soft x-rays  

SciTech Connect

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

293

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

SciTech Connect

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

294

Performance of a quantum key distribution protocol with dual-rail displaced photon states  

SciTech Connect

We propose a scheme for a quantum key distribution (QKD) protocol with dual-rail displaced photon states. Displaced single-photon states with different amplitudes carry bit values of code that may be extracted, while coherent states carry nothing and only provide an inconclusive outcome. A real resource of single photons is used, involving imperfections associated with experimental technique that result in a photon state with an admixture of the vacuum state. The protocol is robust against the loss of a single photon and the inefficiency of the detectors. Pulses with large amplitudes, unlike the conventional QKD relying on faint laser pulses, are used that may approximate it to standard telecommunication and may show resistance to eaves-dropping even in settings with high attenuation. Information leakage to the eavesdropper is determined from comparison of the output distributions of the outcomes with ideal ones that are defined by two additional parameters accessible to only those send the pulses. Robustness to some possible eavesdropping attacks is shown.

Podoshvedov, S. A., E-mail: sap@kias.re.k [Korea Institute for Advanced Study, School of Computational Sciences (Korea, Republic of)

2010-04-15T23:59:59.000Z

295

Energy Parameter Estimation in Solar Powered Wireless Sensor Networks  

Science Journals Connector (OSTI)

The operation of solar powered wireless sensor networks is associated with ... the main challenges is the high variability of solar power input and battery capacity, due to factors such as weather, ... sensor net...

Mustafa Mousa; Christian Claudel

2014-01-01T23:59:59.000Z

296

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

297

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

298

Cost Analysis of Solar Power Plants  

Science Journals Connector (OSTI)

The factors influencing the desirability of solar power plants (SPPs), and of SPP investment decisions, will be discussed in this chapter. The numerical details presented axe based, as far as possible, on actu...

H. P. Hertlein; H. Klaiss; J. Nitsch

1991-01-01T23:59:59.000Z

299

Project Profile: Brayton Cycle Baseload Power Tower  

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

Wilson Solarpower, under the Baseload CSP FOA, is validating a proposed utility-scale, Brayton cycle baseload power tower system with a capacity factor of at least 75% and LCOE of $0.09/kWh.

300

Power Line Calculator for Windows[trademark  

SciTech Connect

The Power Line Calculator (PLC) for Windows [trademark], version 1.0, is a program that describes the electrical characteristics of a transmission or distribution system given user-defined input. This input may consist of a combination of operating currents and phases, symmetric components, power factor, and real or reactive power. The program also allows the user to designate whether currents are present on the system neutral or in the ground. The PLC assumes that any value entered by the user remains fixed (e.g., phase current, power factor), and for underdetermined systems, basic default assumptions are incorporated: the power factor is held at or near 1.0, the net phase current is kept at or near zero, and the phase conductor currents are kept balanced. The program operates through a graphical user interface provided by Microsoft[reg sign] Windows [trademark] (version 3.1 or higher required), and the output is available in both tabular and graphic formats.

Silva, J.M. (Enertech Consultants, Campbell, CA (United States))

1992-12-01T23:59:59.000Z

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

Power Search  

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

You are here: Find a Car Home > Power Search You are here: Find a Car Home > Power Search Power Search Expand any feature by selecting its title bar. Choose as many or as few features as you like. Model Year From: 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 To: 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 MSRP Under $15,000 $15,000-$20,000 $20,000-$25,000 $25,000-$30,000 $30,000-$35,000 $35,000-$40,000 $40,000-$45,000 $45,000-$50,000 $50,000-$55,000 $55,000-$60,000 $60,000-$65,000 $65,000-$70,000 $70,000-$75,000 $75,000-$80,000 $80,000-$85,000 Over $85,000 - OR - Minimum: Select... $5,000 $6,000 $7,000 $8,000 $9,000 $10,000 $11,000

302

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...

303

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...

304

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...

305

A Case Study of Solar Powered Cellular Base Stations.  

E-Print Network (OSTI)

?? Green power, environment protection and emission reduction are key factors nowadays in the telecom industry. Balancing of these modes while reducing the capital and (more)

PANDE, GEETHA

2009-01-01T23:59:59.000Z

306

Design and Control of High Power Density Motor Drive.  

E-Print Network (OSTI)

??This dissertation aims at developing techniques to achieve high power density in motor drives under the performance requirements for transportation system. Four main factors influencing (more)

Jiang, Dong

2011-01-01T23:59:59.000Z

307

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

SciTech Connect

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

308

Engine Driven Combined Heat and Power: Arrow Linen Supply, December 2008  

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

Presentation overview the arrow linen supply combined heat and power, its cost savings, success factors, and impacts

309

Control scheme for power modulation of a free piston Stirling engine  

SciTech Connect

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

310

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

311

Status and Trend of Automotive Power Packaging  

SciTech Connect

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

312

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

Energy Savers (EERE)

lot of the electricity they consume? Higher efficiency power supplies reduce energy consumption, thus cutting your electricity bill. They reduce power consumption, helping your...

313

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

314

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

Science Journals Connector (OSTI)

...dispatch policy, plant retirement, new plant construction...documentation of vehicle specifications...plastics, steel, thermal insulation, electronic parts...engine oil, power steering fluid...

Jeremy J. Michalek; Mikhail Chester; Paulina Jaramillo; Constantine Samaras; Ching-Shin Norman Shiau; Lester B. Lave

2011-01-01T23:59:59.000Z

315

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

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

5730 5730 May 2009 Improving Petroleum Displacement Potential of PHEVs Using Enhanced Charging Scenarios Preprint T. Markel, K. Smith, and A.A. Pesaran Presented at EVS-24 International Battery, Hybrid and Fuel Cell Electric Vehicle Symposium Stavanger, Norway May 13-16, 2009 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (ASE), a contractor of the US Government under Contract No. DE-AC36-08-GO28308. Accordingly, the US Government and ASE retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes. This report was prepared as an account of work sponsored by an agency of the United States government.

316

Modeling of damage generation mechanisms in silicon at energies below the displacement threshold  

Science Journals Connector (OSTI)

We have used molecular dynamics simulation techniques to study the generation of damage in Si within the low-energy deposition regime. We have demonstrated that energy transfers below the displacement threshold can produce a significant amount of damage, usually neglected in traditional radiation damage calculations. The formation of amorphous pockets agrees with the thermal spike concept of local melting. However, we have found that the order-disorder transition is not instantaneous, but it requires some time to reach the appropriate kinetic-potential energy redistribution for melting. The competition between the rate of this energy redistribution and the energy diffusion to the surrounding atoms determines the amount of damage generated by a given deposited energy. Our findings explain the diverse damage morphology produced by ions of different masses.

Ivn Santos; Luis A. Marqus; Lourdes Pelaz

2006-11-21T23:59:59.000Z

317

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

318

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

319

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

320

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

SciTech Connect

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

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

An experimental determination of the dynamics of a free displacer of a small Ringbom-Stirling engine  

SciTech Connect

Otherwise known as a hybrid Stirling engine, the Ringbom-Stirling engine is denoted by its use of a kinematically constrained piston and a free displacer. Pioneering work by Senft in development of a working theory of the Ringbom Stirling engine and the introduction of the fundamental parameters of particular interest has resulted in the possibility of predicting the motion of the free displacer. Using a small Ringbom engine constructed at the University of Calgary and a high speed cine camera it has been possible to record the motion of the displacer relative to the piston motion and to demonstrate the verity of the predictions of the theory. This paper describes the model engine experiment and compares the measurements with the theory as implemented in a second-order computer analysis program.

Fauvel, O.R.; Moehrle, A.; Srincvasan, V.; Walker, G.

1983-08-01T23:59:59.000Z

322

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

323

Power Recovery  

E-Print Network (OSTI)

) - 2,870,000 x 0.8 6 W - 3414 = 70 kw (or 900 hp). When recovering power from an expanding gas, consideration should be given to the final gas temperature. This tem;:>f'rature can be estimated by the formula: T 2 Final temperature, oR. Other... with the requirements make generation fqr more useful. Presently a recovery level of around 500 kw (or 657 hp) appears to be the minimum level which will support an in stallation. In order to achieve reasonable effi ciency, quality equipment with good control...

Murray, F.

324

EMERY BIOMASS GASIFICATION POWER SYSTEM  

SciTech Connect

Emery Recycling Corporation (now Emery Energy Company, LLC) evaluated the technical and economical feasibility of the Emery Biomass Gasification Power System (EBGPS). The gasifier technology is owned and being developed by Emery. The Emery Gasifier for this project was an oxygen-blown, pressurized, non-slagging gasification process that novelly integrates both fixed-bed and entrained-flow gasification processes into a single vessel. This unique internal geometry of the gasifier vessel will allow for tar and oil destruction within the gasifier. Additionally, the use of novel syngas cleaning processes using sorbents is proposed with the potential to displace traditional amine-based and other syngas cleaning processes. The work scope within this project included: one-dimensional gasifier modeling, overall plant process modeling (ASPEN), feedstock assessment, additional analyses on the proposed syngas cleaning process, plant cost estimating, and, market analysis to determine overall feasibility and applicability of the technology for further development and commercial deployment opportunities. Additionally, the project included the development of a detailed technology development roadmap necessary to commercialize the Emery Gasification technology. Process modeling was used to evaluate both combined cycle and solid oxide fuel cell power configurations. Ten (10) cases were evaluated in an ASPEN model wherein nine (9) cases were IGCC configurations with fuel-to-electricity efficiencies ranging from 38-42% and one (1) case was an IGFC solid oxide case where 53.5% overall plant efficiency was projected. The cost of electricity was determined to be very competitive at scales from 35-71 MWe. Market analysis of feedstock availability showed numerous market opportunities for commercial deployment of the technology with modular capabilities for various plant sizes based on feedstock availability and power demand.

Benjamin Phillips; Scott Hassett; Harry Gatley

2002-11-27T23:59:59.000Z

325

Power transaction issues in deregulated power systems  

E-Print Network (OSTI)

With the introduction of the deregulation in the power industry, it becomes possible to wheel power across the transmission network. Hence, some issues involving the network's physical capability to transfer power and the allocation of the network...

Roycourt, Henrik

2012-06-07T23:59:59.000Z

326

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

327

Southwestern Power Administration  

NLE Websites -- All DOE Office Websites (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...

328

Southwestern Power Administration  

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

Rate Schedules Skip Navigation Links Excess Energy Hydro Peaking Power Hydro Power and Energy Sold to Sam Rayburn Dam Electric Cooperative (Rayburn) Hydro Power and Energy Sold to...

329

2025 Power Marketing Initiative  

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

Power Allocations Rates 2025 Power Marketing Initiative The Loveland Area Projects (LAP) Firm Electric Service (FES) contracts expire September 30, 2024. Western Area Power...

330

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

331

Green Power Network: On-site Renewable Energy Systems  

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

On-site Renewable Energy Systems On-site Renewable Energy Systems For consumers or organizations wishing to install on-site renewable energy systems, there are a variety of options available, including electricity generating systems and thermal systems that can displace electricity or fossil fuel use. Solar photovoltaics convert sunlight directly into electricity. Solar hot water systems use the sun's energy to heat water. Wind turbines convert the kinetic energy in wind into mechanical power that runs a generator to produce electricity. Geothermal heat pumps use the constant temperature of the upper 10 feet of the Earth to heat and cool buildings. Fuel cells produce electricity from hydrogen and oxygen and can be powered by a number of sources, including renewables. Biomass power systems use biomass feedstocks such as wood waste or methane from animal waste or other sources to generate electricity. Biomass resources can also be used in direct heat and combined heat and power applications.

332

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

333

Magnetically simulated displacements In the experiments described in Fig. 3, the orientation arena was surrounded by a magnetic  

E-Print Network (OSTI)

Magnetically simulated displacements In the experiments described in Fig. 3, the orientation arena was surrounded by a magnetic coil system that was used to control the field in which each lobster walked and tested in one of two magnetic fields. One field replicated magnetic conditions that exist at a location

Gu, Xun

334

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

335

Correlation of in-flight displacement damage on the OSL sensor with space environment on-board Jason-  

E-Print Network (OSTI)

of ionizing particles on various electronic devices. The effects investigated are Total Ionizing Dose (TID). This new radiation monitor allows to measure proton flux in the range 27.5-292 MeV and electron flux. Ecoffet Abstract: Displacement damage doses measured by the ICARE- NG/OSL sensor on board the French JASON

336

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

337

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

338

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

Science Journals Connector (OSTI)

...cell, and plug-in hybrid electric vehicles. Electric and Hybrid Vehicles: Power Sources...Sustainability, Infrastructure and the Market, ed...Assessment of Plug-in Hybrid Electric Vehicles...and vehicle-to-grid services. Environ...

Jeremy J. Michalek; Mikhail Chester; Paulina Jaramillo; Constantine Samaras; Ching-Shin Norman Shiau; Lester B. Lave

2011-01-01T23:59:59.000Z

339

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

Science Journals Connector (OSTI)

...and plug-in hybrid electric vehicles. Electric and Hybrid Vehicles: Power...Sustainability, Infrastructure and the Market...of Plug-in Hybrid Electric Vehicles...vehicle-to-grid services. Environ...Department of Energy (2010) The...

Jeremy J. Michalek; Mikhail Chester; Paulina Jaramillo; Constantine Samaras; Ching-Shin Norman Shiau; Lester B. Lave

2011-01-01T23:59:59.000Z

340

Natural Gas Power  

Science Journals Connector (OSTI)

The purpose of a power plant is to generate electric power. Therefore, the key performance metric of an electric power generator is the net thermal efficiency, which is the ratio of the electric power measured...

Raub W. Smith; Dr. S. Can Glen

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.


341

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

342

PowerPoint Presentation  

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

Computer networks Local power network Local Power network Local Power network Bulk Power Grid Low-level security domain Medium-level security domain High-level security domain...

343

Water Power Program: Publications  

Energy Savers (EERE)

Water Power Program HOME ABOUT RESEARCH & DEVELOPMENT FINANCIAL OPPORTUNITIES INFORMATION RESOURCES NEWS EVENTS EERE Water Power Program Information Resources Publications...

344

Basic studies in the displacement of residual oil by chemical flooding. Annual report, February 1, 1978-January 31, 1979  

SciTech Connect

Research studies at the University of Houston are concerned with (1) the role of dynamic interfacial properties on the displacement and reconnection processes occurring in surfactant flooding processes and (2) the analytical description of multiphase displacement dynamics using ganglia population balance models and simulation algorithms. Tests on oil-water-surfactant systems using both a drop deformation and orientation method and the viscous traction method indicate the largest interfacial viscosities at salt concentrations in the neighborhood of the optimal salinity. Values of interfacial viscosities for crude oil systems were considerably larger than those associated with iso-octane systems. A new technique involving the use of a spinning drop apparatus has been developed for controlled coalescence tests. Tests to date on several iso-octane-brine-surfactant systems and one crude oil-brine-surfactant system indicate that the fastest coalescence occurs at salt concentrations near the point of optimal salinity. Also, the crude oil systems coalesce at significantly slower rates than the iso-octane systems. Capillary displacement tests involving iso-octane drops being displaced by water have been attempted in both constant pressure drop and constant displacement rate systems. Work has continued in the development of a theoretical description of the dynamics of mobilized oil ganglia, their breakup, coalescence, and entrapment. Improvements in the mobilization criteria have been effected, and hundreds of computer-aided stochastic realizations have been performed for solitary ganglia of all sizes of interest moving in a 100 x 200 sandpack. These realizations show clearly that a solitary ganglion gets slenderized as it moves, and that either it gets restranded whole after a few rheons, or that it first breaks into two daughter ganglia, which eventually get stranded.

Flumerfelt, R.W.; Payatakes, A.C.; Tham, M.K.

1980-02-01T23:59:59.000Z

345

Threshold displacement energies and defect formation energies in Y2Ti2O7  

SciTech Connect

Ab initio molecular dynamics simulations have been carried out to determine both the threshold displacement energies Ed and corresponding defect configurations, and ab initio methods have been used to accurately determine the formation energies in Y2Ti2O7. The minimum Ed is found to be 27 eV for a Y recoil along the <100> direction, 31.5 eV for Ti atoms along the <100> direction, 14.5 eV for O48f atoms along the <110> direction and 13 eV for O8b atoms along the <111> direction. The average Ed value along three directions determined is 35.1, 35.4, 17.0 and 16.2 eV for yttrium, titanium, O48f and O8b atoms, respectively. Cation interstitials at vacant 8a sites, which are generally occupied by oxygen anions, and at the bridge sites between two neighboring cations along the <010> direction are observed after low energy recoil events. A systematic study of the defect formation energies suggests that cation interstitials, which are located at 8a sites and bridge sites along the <010> direction, and in split configurations along the <010>, <110> or <111> direction, are all stable in these configurations. It is suggested that the relative stability of cation interstitials may provide a pathway of driving ion-irradiation induced amorphization in Y2Ti2O7.

Xiao, Haiyan Y.; Gao, Fei; Weber, William J.

2010-10-20T23:59:59.000Z

346

One-dimensional single-mode fiber-optic displacement sensors for submillimeter measurements  

SciTech Connect

We demonstrate the working principle of a one-dimensional intensity-based fiber-optic displacement sensor. The sensor consists of one receiving fiber, which is moved laterally in the optical field emitted by an emitting fiber. It is shown numerically that the sensor response is highly linear (nonlinearity error of 0.1 to 2%) for a wide range of travel (2.24 to 860 {mu}m). The sensor response is also simulated experimentally using a highly precise robot, the results of which correspond very closely to numerical ones. Linearity, travel, and sensitivity are experimentally determined for different gaps between the emitting and the receiving fibers (10 {mu}m to 10 mm). A design chart that includes the nonlinearity error (0.5% to 2%), the travel (2.78 to 860 {mu}m), the sensitivity (0.032 to 0.37 dB/{mu}m), and the gap distance (1 to 10 mm) is finally proposed.

Trudel, Vincent; St-Amant, Yves

2009-09-10T23:59:59.000Z

347

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

SciTech Connect

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

348

Nucleophilic displacement (SN2) reactions in binary van der waals clusters induced by resonant electron capture  

Science Journals Connector (OSTI)

The nucleophilic displacement reactions F? + CH3Y ? CH3F + Y? (Y = Cl, Br, I) and Cl? + \\{OCH3Br\\} ? \\{CH3Cl\\} + Br? are studied in a crossed beam experiment where binary clusters produced by supersonic beam expansion interact with a monochromatized electron beam. The nucleophile (F?, Cl?) is generated by resonant dissociative electron attachment (DA) from one component of the cluster and then undergoes an SN2 reaction with the second component (the substrate molecule CH3Y). Y? ions carrying the DA resonance profile of the nucleophile are then identified as products of the corresponding SN2 reaction. Although isolated \\{CH3Cl\\} has an unmeasurably low DA (Cl?) cross section (SN2 reactions. In addition, the product ion Y? solvated by CH3Y molecules and also ion-molecule complexes (FCH3Y)? involved in the reaction are observed within the DA resonance of the nucleophile. The relative intensity of the naked product ion with respect to the ion-molecule complexes is a mirror of the exothermicity of the corresponding SN2 reaction. Because in DA the nuclephile can be created with a defined amount of translational energy, the potential use of the present method to derive information on the energy dependence of the reaction efficiency is discussed.

Lars Lehmann; Eugen Illenberger

1999-01-01T23:59:59.000Z

349

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 (FIG. 3B) to separate them from each other, or to maintain the bellows in unsupported relationship between these systems (FIG. 4B). 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 (FIG. 4B), 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 (20) in surrounding relationship about a bellows (14) to suppress vibration and displacement thereof. A method for isolating first and second systems (11,12) from each other to prevent the transmission of vibratory energy therebetween comprises the steps of attaching at least one flexible bellows (14) between the systems (11,12), surrounding the bellows with an inflatable tube (20), and maintaining a predetermined pressure in the tube (20) to urge the tube in flexible contact with at least some of the convolutions of the bellows (14).

Kuklo, Thomas C. (Ripon, CA)

1985-01-01T23:59:59.000Z

350

A single-phase grid-connected PV system with active power filter  

Science Journals Connector (OSTI)

In this paper a single-phase active power filter based in a two stages grid-connected photovoltaic system is presented. The proposed system can not only inject PV power into utility but can act always as an active power filter to compensate the load ... Keywords: THD, grid-connected PV systems, power factor and active power filter, single-phase systems

Kleber C. A. De Souza; Denizar C. Martins

2008-07-01T23:59:59.000Z

351

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

SciTech Connect

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

352

PowerPoint Presentation  

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

Testing Objectives Testing Objectives * Qualitatively demonstrate leaching and ultrafiltration processes, equipment design and process control strategies * Obtain data to improve process model projections for leaching and ultrafiltration - Develop scaling factors to form link between laboratory-scale and engineering-scale test results Process Flowsheets * Baseline: caustic leaching in UF feed preparation vessels - Caustic added directly to as-received feed (3-8 wt% solids) * Alternative: caustic leaching in UF feed vessel - Caustic added after initial solids concentration to 20 wt% * All other process steps conducted in the UF feed vessels. PEP Flow Diagram Scaling Considerations * 1/4.5-scale facility: linear dimensions * PJM mixing - Newtonian slurry: power/volume - Non-newtonian: plant velocity

353

PowerPoint Presentation  

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

Utility-Scale Solar 2012 Utility-Scale Solar 2012 An Empirical Analysis of Project Cost, Performance, and Pricing Trends in the United States Mark Bolinger & Samantha Weaver Lawrence Berkeley National Laboratory September 2013 1 This research was supported by funding from the U.S. Department of Energy's SunShot Initiative. Presentation Outline * Recent market growth has resulted in a critical mass of project-level data ripe for analysis * Key findings from this inaugural edition  Installed Costs/Prices  Operating (O&M) Costs  Performance (Capacity Factors)  Power Purchase Agreement ("PPA") Prices 2 A few background notes about this first edition: * Certain data (e.g., O&M costs) were still rather limited for this first edition, but are

354

A Tariff for Reactive Power - IEEE  

SciTech Connect

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

355

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

Science Journals Connector (OSTI)

...Committee on Assessment of Resource Needs for Fuel Cell and Hydrogen Technol-ogies and National Research Council...com-parison of series hybrid, plug-in hybrid, fuel cell and regular cars. J Power Sources 195:6570 ZZQQhy6585. 38...

Jeremy J. Michalek; Mikhail Chester; Paulina Jaramillo; Constantine Samaras; Ching-Shin Norman Shiau; Lester B. Lave

2011-01-01T23:59:59.000Z

356

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

Science Journals Connector (OSTI)

...to support ethanol and bio-diesel fuels. The 2007 Energy...allocation is required. Gasoline, diesel, liquefied petroleum gas...models and/or com-putable general equilibrium models with associated...including ethylene glycol (engine coolant), engine oil, power...

Jeremy J. Michalek; Mikhail Chester; Paulina Jaramillo; Constantine Samaras; Ching-Shin Norman Shiau; Lester B. Lave

2011-01-01T23:59:59.000Z

357

Green Power Network: On-site Renewable Energy  

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

News News TVA Seeks 126 MW of Renewables in 2014 December 2013 More News More News Subscribe to E-Mail Update Subscribe to e-mail update Events EPA Webinar - The Power of Aggregated Purchasing: How to Green Your Electricity Supply & Save Money January 15, 2014 1:00-2:00 p.m. ET Previous Webinars More News Features Green Power Market Status Report (2011 Data) Featured Green Power Reports On-site Renewable Energy Third-Party Solar Financing For consumers or organizations wishing to install on-site renewable energy systems, there are a variety of options available, including electricity generating systems and thermal systems that can displace electricity or fossil fuel use. Solar photovoltaics convert sunlight directly into electricity. Solar hot water systems use the sun's energy to heat water.

358

CO{sub 2} Mitigation Using Atomic Power  

SciTech Connect

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

359

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

SciTech Connect

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

360

A Merged two-stage power conversion architecture with switched capacitor circuit for an LED driver module  

E-Print Network (OSTI)

In a power converter specified to convert from wide-range and high-level DC voltage or AC line voltage to low-level DC voltage, satisfying high efficiency, high power density, and high power factor is challenging because ...

Lim, Seungbum

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.


361

Role of plasma response in displacements of the tokamak edge due to applied non-axisymmetric fields  

SciTech Connect

Linear, two-fluid, resistive modelling of the plasma response to applied non-axisymmetric fields shows significant displacement of edge temperature and density profiles. The calculated displacements, often of 2 cm or more in H-mode pedestals with parameters appropriate to DIII-D, are due to the helical distortions resulting from stable edge modes being driven to finite amplitude by the applied fields. In many cases, these displacements are greater in magnitude, and different in phase, than the distortions of the separatrix manifolds predicted from vacuum modelling. Comparison of these results with experimental measurements from Thomson scattering and soft x-ray imaging finds good quantitative agreement. In these experiments, the phase of the applied non-axisymmetric magnetic field was flipped or rotated in order to probe the non-axisymmetric features of the response. The poloidal structures measured by x-ray imaging show clear indications of a helical response, as opposed to simply a change in the axisymmetric transport. Inclusion of two-fluid effects and rotation are found to be important in obtaining quantitative agreement with Thomson scattering data. Modelling shows screening of islands in the H-mode pedestal, but island penetration near the top of the pedestal where the electron rotation vanishes in plasmas with co-current rotation. Enhanced transport due to these islands may provide a mechanism for maintaining the pedestal width below the stability threshold of edge-localized modes. For typical DIII-D parameters, it is shown that the linear approximation is often near or beyond the limit of validity in the H-mode edge; however, the general agreement with experimental measurements indicates that these linear results nevertheless maintain good predictive value for profile displacements.

Evans, T. E. [General Atomics, San Diego; Ferraro, N. M. [General Atomics, San Diego; Orlov, D. M. [University of California, San Diego & La Jolla; Wade, M. [General Atomics, San Diego; Lao, L. L. [General Atomics, San Diego; Moyer, R. A. [University of California, San Diego; Wingen, A. [University of Dusseldorf, Germany; Nazikian, R. [Princeton Plasma Physics Laboratory (PPPL); Unterberg, Ezekial A [ORNL; Shafer, Morgan W [ORNL

2013-01-01T23:59:59.000Z

362

Dynamic power systems for power generation  

SciTech Connect

The characteristics of dynamic power systems have considerable potential value, especially for the space station. The base of technology that makes these dynamic power systems practical is reviewed. The following types of power-generating systems are examined herein: organic Rankine cycle, potassium Rankine cycle, Brayton cycle, and Stirling cycle.

English, R.E.

1984-04-01T23:59:59.000Z

363

New England Wind Forum: Selling Wind Power  

Wind Powering America (EERE)

Selling Wind Power Selling Wind Power Markets are either well-developed or developing for each of the 'products' produced by wind generators. These include electricity products and generation attributes. Electricity Electricity can be used in two ways: on-site (interconnected behind a retail customer's meter) of for sales of electricity over the electric grid. On-site generation can displace a portion of a customer's purchases of electricity from the grid. In addition, net metering rules are in place at the state level that in some cases allow generation in excess of on-site load to be sold back to the local utility (see state pages for net metering specifics). For sales over the electricity grid, the Independent System Operator of New England (ISO New England) creates and manages a wholesale market for electric energy, capacity, and ancillary services within the New England Power Pool (NEPOOL). Wind generators may sell their electric energy and capacity in spot markets organized by the ISO, or they may contract with wholesale buyers to sell these products for any term to buyers operating in the ISO New England marketplace. Wind generators do not generally produce other marketable ancillary services. The ISO has rules specific to the operation of wind generators reflecting operations, scheduling, calculation of installed capacity credit, and so forth.

364

Can solar power deliver?  

Science Journals Connector (OSTI)

...technologies, such as wind power, which often peaks...generators such as nuclear power, enabling it be rapidly...exceeded those for wind, nuclear and gas...Contributions from wind, solar and conventional sources to power generation on the...

2013-01-01T23:59:59.000Z

365

Power and the People  

Science Journals Connector (OSTI)

...Air Act for the electric power industry, are dealt with in a single...find no discussion of the Bonneville Power Administration, and only limited discussion...find no discussion of the Bonneville Power Administration, and only limited discussion...

M. Granger Morgan

1998-04-24T23:59:59.000Z

366

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

367

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

368

Factors driving wind power development in the United States  

E-Print Network (OSTI)

news release, PUC Approves Xcel Resource Plan with AdditionPublic Utility Commissions Xcel Wind Decision. Papera settlement requiring Xcel Energy to develop or purchase

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

2003-01-01T23:59:59.000Z

369

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

370

Enhancing the Thermoelectric Power Factor by Using Invisible Dopants  

E-Print Network (OSTI)

Nanoparticle dopants that are invisible to conduction electrons and have sharp dips in their electron scattering rate versus electron energy close to the Fermi level. Replacement of such dopants with traditional impurities ...

Zebarjadi, Mona

371

Green Power Network: Green Power Markets Overview  

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

Green Markets Green Markets Search Search Help More Search Options Search Site Map News TVA Seeks 126 MW of Renewables in 2014 December 2013 More News More News Subscribe to E-Mail Update Subscribe to e-mail update Events EPA Webinar - The Power of Aggregated Purchasing: How to Green Your Electricity Supply & Save Money January 15, 2014 1:00-2:00 p.m. ET Previous Webinars More News Features Green Power Market Status Report (2011 Data) Featured Green Power Reports Green Pricing Green Power Marketing Green Certificates Carbon Offsets State Policies Overview The essence of green power marketing is to provide market-based choices for electricity consumers to purchase power from environmentally preferred sources. The term "green power" is used to define power generated from renewable energy sources, such as wind and solar power, geothermal, hydropower and various forms of biomass. Green power marketing has the potential to expand domestic markets for renewable energy technologies by fostering greater availability of renewable electric service options in retail markets. Although renewable energy development has traditionally been limited by cost considerations, customer choice allows consumer preferences for cleaner energy sources to be reflected in market transactions. In survey after survey, customers have expressed a preference and willingness to pay more, if necessary, for cleaner energy sources. You can find more information about purchase options on our "Buying Green Power" page.

372

Design, implementation and preliminary evaluation of displacement and force control sticks on a flight simulator  

E-Print Network (OSTI)

in every pursuit of mine. NOMENCLATURE Symbols A/D adbp Analog to digital Analog L digital board pointer bhp Brake horse power Diameter of propellor D/A FML Digital to analog Flight mechanics laboratory fpm Feet per minute fps Feet per second... rpm Revolutions per minute vn Airspeed VASI VME Visual aid slope indicator VERSA module device Vertical velocity Distance from threshold Difference from mean Distance from centerline Denotes deviation from desired value Glide slope angle...

Venugopal, Ravinder

2012-06-07T23:59:59.000Z

373

Experimental examination of wire mesh dampers subjected to large amplitude displacements  

E-Print Network (OSTI)

interference, the wire mesh would deform and expand in the axial direction making a baseline measurement necesary. To increase the axial interference, the bolts holding the axial cap were tightened. The distance was checked with a caliper to ensure equal... Turbo-pump Rotordynamic Instability Problem,? Journal of Engineering for Power, 100(1), pp. 48-57 [2] Hara, Fumio, 1992, ?Characteristics of Stel Wire Mesh Friction Damping,? ASME Presure Vesels and Piping Division, 229, pp. 155-161. [3] Burshid, S...

Jones, Adam Matthew

2009-06-02T23:59:59.000Z

374

PowerPoint Presentation  

Office of Environmental Management (EM)

Power Generation & Distribution-Technologies that generate on-site power or manage energy markets (e.g. PV, microgrid control systems) What are We Looking for?...

375

Fusion Power Associates Awards  

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

Fusion Power Associates Awards Fusion Power Associates is "a non-profit, tax-exempt research and educational foundation, providing information on the status of fusion development...

376

BONNEVILLE POWER ADMINISTRATION  

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

exceptions include: traffic signals, exit signs, kitchen equipment, network power management, power strips, showerheads, clothes washers, water heaters and ag stock...

377

Bonneville Power Administration  

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

agreement (Agreement) between the BC Hydro and Power uthority (BCH) and the Bonneville Power Administration (BP A), jointly the Parties, which BA for accounting purposes is...

378

Portable Power Projects  

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

DOE's Portable Power, Auxiliary Power Units, and R&D for Off-Road Fuel Cell Applications Research Projects Awarded April 2004

379

Southwestern Power Administration  

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

of four Power Marketing Administrations in the United States, Southwestern markets hydroelectric power in Arkansas, Kansas, Louisiana, Missouri, Oklahoma, and Texas from 24 U.S....

380

BPA Power Services (PBL)  

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

Power Rates Previous Power Rates Resource Program Average System Cost Methodology (ASCM) Wind Integration Tiered Rate Methodology Supplemental Rate Case Tiered Rate Methodology...

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

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

382

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

383

Review of recent advances of radioisotope power systems  

Science Journals Connector (OSTI)

Radioisotope power systems have demonstrated numerous advantages over other types of power supplies for long-lived, unattended applications in space and in remote terrestrial locations. Many especially challenging power applications can be satisfied by proper selection, design, and integration of the radioisotope heat source and the power conversion technologies that are now available or that can be developed. This paper provides a brief review of the factors influencing selection of radioisotopes and design of power systems, and discusses the current state of practice and future programmatic and technical challenges to continued use of radioisotope power systems in space.

Robert G. Lange; Wade P. Carroll

2008-01-01T23:59:59.000Z

384

High Flux Isotope Reactor power upgrade status  

SciTech Connect

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

385

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,...

386

Georgia Power Company (GPC), Oglethorpe Power Corporation (OPC...  

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

Georgia Power Company (GPC), Oglethorpe Power Corporation (OPC), Municipal Electric Authority of Georgia (MEAG) Georgia Power Company (GPC), Oglethorpe Power Corporation (OPC),...

387

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

388

Domain-Wide Displacement of Histones by Activated Heat Shock Factor Occurs Independently of Swi/Snf and Is Not Correlated with RNA Polymerase II Density  

Science Journals Connector (OSTI)

...is peculiar to yeast heat shock genes. However...been obtained that show loss of nucleosomes over the...analyses demonstrate partial loss of histones over the...fluorescent protein-H3 distribution in Drosophila polytene...is rapidly lost from heat shock gene loci upon...

Jing Zhao; Jorge Herrera-Diaz; David S. Gross

2005-10-15T23:59:59.000Z

389

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

390

Power Purchase Agreements  

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

Presentation covers the power purchase agreements taken from the FEMP Alternative Finance Options (AFO) webinar.

391

TVA chooses nuclear power  

Science Journals Connector (OSTI)

TVA chooses nuclear power ... In giving the nod to a nuclear (over a coal) power generating station 10 days ago, TVA probably gave nuclear power its biggest boost to date. ... The $247 million nuclear power planta dual boiling-water reactor unit with a total capacity of 2.2 million kw(e).will ...

1966-06-27T23:59:59.000Z

392

Offshore Wind Power USA  

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

The Offshore Wind Power USA conference provides the latest offshore wind market updates and forecasts.

393

Power blackouts likely  

Science Journals Connector (OSTI)

... generating stations switch off if they cannot transmit their power. As power stations and transmission substations were knocked out, power was shifted to lines further down the network, causing them ... a map of the United States containing more than 14,000 generating, transmission and distribution substations, and over 19,000 connecting power lines. ...

Philip Ball

2004-01-20T23:59:59.000Z

394

Can solar power deliver?  

Science Journals Connector (OSTI)

...Articles 1002 117 Discussion Meeting Issue Can solar power deliver? organized and edited by...S. Roberto Amendolia and Can Li Can solar power deliver? Jenny Nelson 1 2 Christopher...of 15 to a Discussion Meeting Issue Can solar power deliver? . Solar power represents...

2013-01-01T23:59:59.000Z

395

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

396

E-Print Network 3.0 - age factors Sample Search Results  

NLE Websites -- All DOE Office Websites (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...

397

Far-field coseismic displacements associated with the great Sumatra earthquakes of December 26, 2004 and March 29, 2005 constrained by Global Positioning System  

Science Journals Connector (OSTI)

Based on continuous GPS observations within China as well as global GPS tracking network, a calculation has been made of far-field coseismic displacements associated with the December, 2004 (Mw = 9.3) and March, ...

Min Wang; Peizhen Zhang; Zhengkang Shen; Jie Liu; Hanrong Sun

2006-07-01T23:59:59.000Z

398

Method to calculate resistance of high-speed displacement ship taking the effect of dynamic sinkage and trim and fluid viscosity into account  

Science Journals Connector (OSTI)

A method is presented to calculate the resistance of a high-speed displacement ship taking the effect of sinkage and trim and viscosity of ... mesh being used, the position of a ship is updated by the motion of

Chao-bang Yao ???; Wen-cai Dong ???

2012-08-01T23:59:59.000Z

399

SHADE3 server: a streamlined approach to estimate H-atom anisotropic displacement parameters using periodic ab initio calculations or experimental information  

Science Journals Connector (OSTI)

The SHADE web server has been updated to allow the use of ab initio calculations and experimental information. The resulting H-atom anisotropic displacement parameters are compared with neutron structures and other estimation approaches.

Madsen, A.?.

2014-11-28T23:59:59.000Z

400

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

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

E-Print Network 3.0 - albumin-free recombinant factor Sample...  

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

free recombinant factor Search Powered by Explorit Topic List Advanced Search Sample search results for: albumin-free recombinant factor Page: << < 1 2 3 4 5 > >> 1 June 2004 |...

402

E-Print Network 3.0 - accelerating factor cd55 Sample Search...  

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

factor, Arrhenius relationship, Eyring relationship, inverse power... (x) is SAFT if T(x) T(xU )AF(x), where the acceleration factor AF(x) is a positive function of x...

403

Fukushima, Mexico and Slovenia: Free Electric Power Recordings for  

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

Fukushima, Mexico and Slovenia: Free Electric Power Recordings for Fukushima, Mexico and Slovenia: Free Electric Power Recordings for Researchers Speaker(s): Alex McEachern Date: May 20, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Girish Ghatikar You can learn a lot of really interesting stuff by studying time-series recordings of electric power parameters, especially frequency, power, and power factor. Depending on the time scale of the recordings, you can detect everything from design flaws in electronic inverters to battery back-up time at remote nuclear power plants. This informal lunch-time discussion will use public data available from worldwide PQube power monitoring instruments, freely available at http://map.PQube.com , a resource for researchers who want minute-by-minute power quantity and power quality data

404

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

405

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

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

The Energy Department and the American Public Power Association named Oklahoma Municipal Power Authority and Silicon Valley Power as the winners of the 2014 Public Power Wind Awards.

406

Power Reactor Progress  

Science Journals Connector (OSTI)

Argonne kicks off EBWR; Allis-Chalmers plans power reactor using both nuclear and conventional fuels ... NUCLEAR POWER took two giant steps last week. ... Just as the first nuclear power system in the U. S. designed and built solely for the generation of electric power went into full operation at Argonne, Allis-Chalmers came up with a new twist in power reactorsa controlled recirculation boiling reactor (CRBR) using both nuclear and conventional fuels (C&EN, Feb. 18, page 7). ...

1957-02-25T23:59:59.000Z

407

Alternative Geothermal Power Production Scenarios  

SciTech Connect

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

408

New England Wind Forum: Wind Power Policy in New England  

Wind Powering America (EERE)

Projects in New England Building Wind Energy in New England Wind Resource Wind Power Technology Economics Markets Siting Policy Renewable Energy Portfolio Standards State Renewable Energy Funds Federal Tax Incentives and Grants Net Metering and Interconnection Standards Pollutant Emission Reduction Policies Awareness Technical Challenges Issues Small Wind Large Wind Newsletter Perspectives Events Quick Links to States CT MA ME NH RI VT Bookmark and Share Wind Power Policy in New England Why Incentives and Policy? Federal and state policies play an important role in encouraging wind energy development by leveling the playing field compared to other energy sources. Many of the substantial benefits of wind power as a domestic, zero-emission part of the energy portfolio - sustainability, displacement of pollutant emissions from other power sources, fuel diversity, price stabilization, keeping a substantial portion of energy expenditures in the local economy - are shared by society as a whole and cannot be readily captured by wind generators directly in the price they charge for their output. In addition, while wind power receives some policy support, the level of federal incentives for wind represents less than 1% of the subsidies and tax breaks given to the fossil fuels and nuclear industries (source: "Wind Power An Increasingly Competitive Source of New Generation." Wind Energy Weekly #1130.).

409

Towns across Massachusetts are considering wind power, not only because it is one of the cleanest,  

E-Print Network (OSTI)

Towns across Massachusetts are considering wind power, not only because it is one of the cleanest managed wind power project can be a net source of income. This fact sheet introduces the major factors to consider in determining whether your town can benefit from wind power. Can my community use wind power

Massachusetts at Amherst, University of

410

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

SciTech Connect

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

411

Uncertainty quantification for evaluating impacts of caprock and reservoir properties on pressure buildup and ground surface displacement during geological CO2 sequestration  

SciTech Connect

A series of numerical test cases reflecting broad and realistic ranges of geological formation properties was developed to systematically evaluate and compare the impacts of those properties on geomechanical responses to CO2 injection. A coupled hydro-geomechanical subsurface transport simulator, STOMP (Subsurface Transport over Multiple Phases), was adopted to simulate the CO2 migration process and geomechanical behaviors of the surrounding geological formations. A quasi-Monte Carlo sampling method was applied to efficiently sample a high-dimensional parameter space consisting of injection rate and 14 subsurface formation properties, including porosity, permeability, entry pressure, irreducible gas and aqueous saturation, Youngs modulus, and Poissons ratio for both reservoir and caprock. Generalized cross-validation and analysis of variance methods were used to quantitatively measure the significance of the 15 input parameters. Reservoir porosity, permeability, and injection rate were found to be among the most significant factors affecting the geomechanical responses to the CO2 injection. We used a quadrature generalized linear model to build a reduced-order model that can estimate the geomechanical response instantly instead of running computationally expensive numerical simulations. The injection pressure and ground surface displacement are often monitored for injection well safety, and are believed can partially reflect the risk of fault reactivation and seismicity. Based on the reduced order model and response surface, the input parameters can be screened for control the risk of induced seismicity. The uncertainty of the subsurface structure properties cause the numerical simulation based on a single or a few samples does not accurately estimate the geomechanical response in the actual injection site. Probability of risk can be used to evaluate and predict the risk of injection when there are great uncertainty in the subsurface properties and operation conditions.

Bao, Jie; Hou, Zhangshuan; Fang, Yilin; Ren, Huiying; Lin, Guang

2013-08-12T23:59:59.000Z

412

Economic Benefits, Carbon Dioxide (CO2) Emissions Reductions, and Water Conservation Benefits from 1,000 Megawatts (MW) of New Wind Power in Indiana (Fact Sheet)  

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

ind power is one of the fastest-growing forms of ind power is one of the fastest-growing forms of new power generation in the United States. Industry growth in 2007 was an astounding 45%. New wind power installations constituted 35% of all new electric power installations. This growth is the result of many drivers, includ- ing increased economic competitiveness and favorable state policies such as Renewable Portfolio Standards. However, new wind power installations provide more than cost-competitive electricity. Wind power brings economic development to rural regions, reduces greenhouse gas production by displacing fossil fuels, and reduces water consumption in the electric power sector. The U.S. Department of Energy's Wind Powering America Program is committed to educating state-level policymakers

413

Green Power Network: Green Power Policies  

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

Green Power Marketing Green Certificates Carbon Offsets State Policies govern_purch Community Choice Aggregation Disclosure Policies Green Power Policies Net Metering Policies Green Power Policies A number of state and local governments have policies in place that encourage the development of green power markets. Government green power purchasing mandates or goals have been established by the federal government, as well as state and local governments to procure renewable energy for the electricity used by government facilities or operations. Community choice aggregation allows communities to determine their electricity generation sources by aggregating the community load and purchasing electricity from an alternate electricity supplier while still receiving transmission and distribution service from their existing provider.

414

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

415

Research on Development Trends of Power Load Forecasting Methods  

Science Journals Connector (OSTI)

In practical problem, number of samples is often limited, for complex issues such as power load forecasting, generally available historical data and information of impact factor are very ... support vector mechan...

Litong Dong; Jun Xu; Haibo Liu; Ying Guo

2014-01-01T23:59:59.000Z

416

The Commodification of Location: Dynamics of Power in Location-Based Systems  

E-Print Network (OSTI)

, technological object. Author Keywords Discipline, Power, Surveillance, GPS. ACM Classification Keywords H5.m. Information interfaces and presentation (e.g., HCI): Miscellaneous. General Terms: Human Factors. INTRODUCTION

Dourish,Paul

417

Impacts of dynamic reactive power compensation devices on the performance of wind power generators  

Science Journals Connector (OSTI)

This paper investigates the main impacts of dynamic reactive power compensation devices on the performance of induction machine-based wind power generators. The dynamic reactive power compensation devices analysed are the SVC (Static Var Compensator) and the DSTATCOM (Distributed Static Synchronous Compensator). The usage of these devices as a power factor regulator or a voltage regulator is investigated. The technical factors analysed are small-signal voltage stability, transient stability and interactions with the anti-islanding protection system. The analyses are carried out by using a wind farm composed of 30 units of 1 MW induction generators. Such wind farm is connected to a 60 Hz, 33 kV distribution system. The results are a useful guideline to evaluate which control strategy and device are suitable for a determined application as well as to understand the dynamic interactions that can occur.

Walmir Freitas; Mauricio B.C. Salles; Jose C.M. Vieira; Andre Morelato; Luiz Carlos Pereira Da Silva; Vivaldo Fernando Da Costa

2005-01-01T23:59:59.000Z

418

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

NLE Websites -- All DOE Office Websites (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...

419

Direct and precise measurement of displacement and velocity of flexible web in roll-to-roll manufacturing systems  

SciTech Connect

Interest in the production of printed electronics using a roll-to-roll system has gradually increased due to its low mass-production costs and compatibility with flexible substrate. To improve the accuracy of roll-to-roll manufacturing systems, the movement of the web needs to be measured precisely in advance. In this paper, a novel measurement method is developed to measure the displacement and velocity of the web precisely and directly. The proposed algorithm is based on the traditional single field encoder principle, and the scale grating has been replaced with a printed grating on the web. Because a printed grating cannot be as accurate as a scale grating in a traditional encoder, there will inevitably be variations in pitch and line-width, and the motion of the web should be measured even though there are variations in pitch and line-width in the printed grating patterns. For this reason, the developed algorithm includes a precise method of estimating the variations in pitch. In addtion, a method of correcting the Lissajous curve is presented for precision phase interpolation to improve measurement accuracy by correcting Lissajous circle to unit circle. The performance of the developed method is evaluated by simulation and experiment. In the experiment, the displacement error was less than 2.5 ?m and the velocity error of 1? was about 0.25%, while the grating scale moved 30 mm.

Kang, Dongwoo; Lee, Eonseok; Choi, Young-Man; Lee, Taik-Min [Advanced Manufacturing Systems Research Division, Korea Institute of Machinery and Materials, 156 Gajeongbuk-Ro, Yuseong-Gu, Daejeon 305-343 (Korea, Republic of)] [Advanced Manufacturing Systems Research Division, Korea Institute of Machinery and Materials, 156 Gajeongbuk-Ro, Yuseong-Gu, Daejeon 305-343 (Korea, Republic of); Kim, Duk Young [Nano-Opto-Mechatronics Lab., Dept. of Mechanical Eng., KAIST, 335 Gwahangno, Yuseong-Gu, Daejeon 305-701 (Korea, Republic of)] [Nano-Opto-Mechatronics Lab., Dept. of Mechanical Eng., KAIST, 335 Gwahangno, Yuseong-Gu, Daejeon 305-701 (Korea, Republic of); Kim, Dongmin [Korea Research Institute of Standards and Science, 267 Gajeong-Ro, Yuseong-Gu, Daejeon 305-340 (Korea, Republic of)] [Korea Research Institute of Standards and Science, 267 Gajeong-Ro, Yuseong-Gu, Daejeon 305-340 (Korea, Republic of)

2013-12-15T23:59:59.000Z

420

Exploration mission enhancements possible with power beaming. [Space Applications Power Beaming  

SciTech Connect

A key factor in the exploration and development of the space frontier is the availability of energy where and when it is needed. Currently all space satellites and platforms include self-contained power systems that supply the energy necessary to accomplish mission objectives. An alternative approach is to couple advanced high power system with energy beam transmitters and energy receivers to form an infrastructure of a space power utility where a central power system provides power to multiple users. Major space activities, such as low Earth orbit space commercialization and the colonization of the Moon or Mars, would benefit significantly from a central power generation and transmission system. This paper describes the power-beaming concept and system components as applied to space power generation and distribution in support of the Space Exploration Initiative. Beam-power scenarios are discussed including commonality of systems and hardware with cargo transport vehicles, power beaming from orbit to stationary and mobile users on the Lunar and Mars surfaces, and other surface applications. 6 refs.

Bamberger, J.A.; Coomes, E.P. (Pacific Northwest Lab., Richland, WA (USA)); Segna, D.R. (USDOE Richland Operations Office, WA (USA))

1990-10-01T23:59:59.000Z

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.


421

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

Office of Scientific and Technical Information (OSTI)

three-phase circuits. 3 73.844 3 6 0 . 7 1 1 360.71 1 Fig. 6 Trajectory of fundamental-frequency, phase-a voltage instantaneous phasor, Val. HI. INSTANTANEOUS ROOT-MEAN-SQUARE...

422

Power beaming providing a space power infrastructure  

SciTech Connect

This study, based on two levels of technology, applies the power beaming concept to four planned satellite constellations. The analysis shows that with currently available technology, power beaming can provide mass savings to constellations in orbits ranging from low earth orbit to geosynchronous orbit. Two constellations, space surveillance and tracking system and space based radar, can be supported with current technology. The other two constellations, space-based laser array and boost surveillance and tracking system, will require power and transmission system improvements before their breakeven specific mass is achieved. A doubling of SP-100 conversion efficiency from 10 to 20/% would meet or exceed breakeven for these constellations.

Bamberger, J.A.; Coomes, E.P.

1992-08-01T23:59:59.000Z

423

Savings Through Power Quality  

E-Print Network (OSTI)

. Harmonics can be cause of inefficient distribution of power, power line carrier (PLC), egg. Clocks and Energy Management Systems (EMS). Finally, harmonics can cause utility meters, KW Demand and KWH consumption, to register false readings. Electro...

Mehrdad, M.

2005-01-01T23:59:59.000Z

424

Nuclear power: an outlook  

Science Journals Connector (OSTI)

Nuclear power: an outlook ... For nuclear power to regain public acceptance and investor confidence, the nation's nuclear plants must sustain an unblemished safety record, reflecting an industrywide commitment to the highest professional standards. ...

1983-11-14T23:59:59.000Z

425

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

426

PowerPoint Presentation  

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

low power situations there's a mechanism: lBurst mode deep cycles e-caps, which can overheat them, and cause wearout quicker. lAlso, at low power the converters are less...

427

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

428

Fundamentals of Power Electronics  

Science Journals Connector (OSTI)

This chapter gives a description and overview of power electronic technologies including a description of the fundamental systems that are the building blocks of power electronic systems. Technologies that are de...

Edison R. C. da Silva; Malik E. Elbuluk

2013-01-01T23:59:59.000Z

429

Data Center Power Consumption  

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

Center Power Consumption Center Power Consumption A new look at a growing problem Fact - Data center power density up 10x in the last 10 years 2.1 kW/rack (1992); 14 kW/rack (2007) Racks are not fully populated due to power/cooling constraints Fact - Increasing processor power Moore's law Fact - Energy cost going up 3 yr. energy cost equivalent to acquisition cost Fact - Iterative power life cycle Takes as much energy to cool computers as it takes to power them. Fact - Over-provisioning Most data centers are over-provisioned with cooling and still have hot spots November 2007 SubZero Engineering An Industry at the Crossroads Conflict between scaling IT demands and energy efficiency Server Efficiency is improving year after year Performance/Watt doubles every 2 years Power Density is Going Up

430

Full-energy-chain greenhouse-gas emissions: a comparison between nuclear power, hydropower, solar power and wind power  

Science Journals Connector (OSTI)

Fair comparison of the climate impacts from different energy sources can be made only by accounting for the emissions of all relevant greenhouse gases (GHGs) from the full energy chain (FENCH) of the energy sources. FENCH-GHG emission factors of most of the non-fossil fuel energies are lower than those of the fossil fuels that are in the range of 500-1200 g CO2/kW h(e). The improvement rates concerning their CO2-to-energy ratios of OECD countries and some developing countries are discussed, showing the low performance of the latter from 1965-1996. Detailed FENCH-GHG systems analyses are given for nuclear power, hydropower, and wind and solar power. The FENCH-GHG emission factor of nuclear power is 8.9 g CO2-equiv./kW h(e) and applies to light-water nuclear power plants. The main contributions are from milling, conversion of lower-grade ore, enrichment, construction and operation of the power plant, and reprocessing (if relevant). For hydropower an emission factor is reported of 16 g CO2-equiv./kW h(e) for the best investigated flat-area cold climate power plants. The main, biogenic, emission source is the water reservoir. The information on high-altitude alpine reservoir-type and run-of- river hydropower generation is limited. These plants could probably have emission factors in the low range of 5-10 g CO2-equiv./kW h(e). The FENCH CO2-equivalent emission factors of wind power systems are in the order of 15 g CO2-equiv./kW h(e). The main source is associated with the materials for the turbine and for its foundation. Solar PV and solar thermal power are in an intermediate range their current values are 100-200 and 50-80g CO2-equiv./kW h(e), respectively. GHG emissions are mainly from silicon, which dominates the PV market.

Joop F. van de Vate

2002-01-01T23:59:59.000Z

431

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

432

wind power station  

Science Journals Connector (OSTI)

wind power station [It may consist of just one wind turbine or a network of windmills] ? Windkraftanlage

2014-08-01T23:59:59.000Z

433

Power Plant Cycling Costs  

SciTech Connect

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

434

TERRORISM AND NUCLEAR POWER  

Science Journals Connector (OSTI)

TERRORISM AND NUCLEAR POWER ... The attacks of Sept. 11 raise fear that U.S. nuclear power plants may be vulnerable ... THE TERRORIST ATTACKS ON THE World Trade Center and Pentagon are forcing a reexamination of the security of the nation's 103 nuclear power plants by nuclear's advocates and foes alike. ...

JEFF JOHNSON

2001-10-08T23:59:59.000Z

435

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

436

Backup Power Cost of Ownership Analysis and Incumbent Technology Comparison  

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

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.

437

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.

438

Geothermal Energy--Clean Power From the Earth's Heat  

E-Print Network (OSTI)

G. Groat Director, U.S. Geological Survey #12;iv Conversion Factors Geothermal Energy--Clean Power From the Earth's Heat Circular 1249 U.S. Department of the Interior U.S. Geological Survey #12;Geothermal Energy--Clean Power From the Earth's Heat By Wendell A

439

Backup Power Cost of Ownership Analysis and Incumbent Technology Comparison  

SciTech Connect

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

440

Wind for Schools Project Power System Brief, Wind Powering America...  

Wind Powering America (EERE)

Wind Powering America Fact Sheet Series Energy Efficiency & Renewable Energy Wind for Schools Project Power System Brief Wind for Schools Project Power System Brief Wind for...

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

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...

442

The Douglas Factors  

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

Douglas Factors Douglas Factors The Merit Systems Protection Board in its landmark decision, Douglas vs. Veterans Administration, 5 MSPR 280, established criteria that supervisors must consider in determining an appropriate penalty to impose for an act of employee misconduct. These twelve factors are commonly referred to as "Douglas Factors: (1) The nature and seriousness of the offense, and its relation to the employee's duties, position, and responsibilities, including whether the offense was intentional or technical or inadvertent, or was committed maliciously or for gain, or was frequently repeated; (2) the employee's job level and type of employment, including supervisory or fiduciary role,

443

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

444

Participation of wind power plants in system frequency control: Review of grid code requirements and control methods  

Science Journals Connector (OSTI)

Abstract Active power reserves are needed for the proper operation of an electrical system. These reserves are continuously regulated in order to match the generation and consumption in the system and thus, to maintain a constant electrical frequency. They are usually provided by synchronized conventional generating units such as hydraulic or thermal power plants. With the progressive displacement of these generating plants by non-synchronized renewable-based power plants (e.g. wind and solar) the net level of synchronous power reserves in the system becomes reduced. Therefore, wind power plants are required, according to some European Grid Codes, to also provide power reserves like conventional generating units do. This paper focuses not only on the review of the requirements set by Grid Codes, but also on control methods of wind turbines for their participation in primary frequency control and synthetic inertia.

Francisco Daz-Gonzlez; Melanie Hau; Andreas Sumper; Oriol Gomis-Bellmunt

2014-01-01T23:59:59.000Z

445

Electric Power Monthly  

Gasoline and Diesel Fuel Update (EIA)

Electric Power Monthly > Electric Power Monthly Back Issues Electric Power Monthly > Electric Power Monthly Back Issues Electric Power Monthly Back Issues Monthly Excel files zipped 2010 January February March April May June July August September October November December 2009 January February March April May June July August September October November December 2008 January February March March Supplement April May June July August September October November December 2007 January February March April May June July August September October November December 2006 January February March April May June July August September October November December 2005 January February March April May June July August September October November December

446

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

SciTech Connect

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

447

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

448

PowerPoint Presentation  

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

6 Northern Power Systems, Inc 6 Northern Power Systems, Inc Northern Power Systems 182 Mad River Park Waitsfield, VT 05673 Ultracapacitor EnergyBridge(tm) UPS for Palmdale Water District DOE/ESS PEER Review November 3, 2006 11/03/2006 Northern Power Systems, Inc © 2006 2 Northern Power  Distributed Energy Systems Corp (NASDAQ:DESC)  Energy Solutions since 1974  Products, Systems and Services Divisions  Hundreds of Projects around the World  HQ and Manufacturing in Vermont  Regional offices in NY, TX, CA, England, and Mexico 11/03/2006 Northern Power Systems, Inc © 2006 3 Project Overview  CEC - California Energy Commission  Funding agency  Palmdale Water District  Award recipient, host site  Northern Power  Technology provider  Black & Veatch  Owner's engineer

449

Vehicle Technologies Office: Power Electronics  

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

Power Electronics to Power Electronics to someone by E-mail Share Vehicle Technologies Office: Power Electronics on Facebook Tweet about Vehicle Technologies Office: Power Electronics on Twitter Bookmark Vehicle Technologies Office: Power Electronics on Google Bookmark Vehicle Technologies Office: Power Electronics on Delicious Rank Vehicle Technologies Office: Power Electronics on Digg Find More places to share Vehicle Technologies Office: Power Electronics on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Advanced Power Electronics & Electrical Machines Power Electronics Electrical Machines Thermal Control & System Integration Advanced Combustion Engines Fuels & Lubricants Materials Technologies Power Electronics The power electronics activity focuses on research and development (R&D)

450

Power network analysis and optimization  

E-Print Network (OSTI)

Marek-Sadowska, On-chip power supply network optimizationtechniques for full-chip power supply noise analysis IEEEFull-chip vectorless dynamic power integrity analysis and

Zhang, Wanping

2009-01-01T23:59:59.000Z

451

Principle Power | Open Energy Information  

Open Energy Info (EERE)

Principle Power Place: San Francisco, California Zip: 94120 Sector: Renewable Energy Product: Principle Power is a global independent power producer committed to delivering green,...

452

Catalog of DC Appliances and Power Systems  

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

Catalog of DC Appliances and Power Systems Catalog of DC Appliances and Power Systems Title Catalog of DC Appliances and Power Systems Publication Type Report LBNL Report Number LBNL-5364E Year of Publication 2011 Authors Garbesi, Karina, Vagelis Vossos, and Hongxia Shen Document Number LBNL-5364E Date Published October Publisher Lawrence Berkeley National Laboratory Abstract This document catalogs the characteristics of current and potential future direct current (DC) products and power systems. It is part of a larger U.S. Department of Energy-funded project, "Direct-DC Power Systems for Energy Efficiency and Renewable Energy Integration with a Residential and Small Commercial Focus". That project is investigating the energy-savings potential, benefits, and barriers of using DC generated by on-site renewable energy systems directly in its DC form, rather than converting it first to alternating current (AC) for distribution to loads. Two related reports resulted from this work: this Catalog and a companion report that addresses direct-DC energy savings in U.S. residential buildings.Interest in 'direct-DC' is motivated by a combination of factors: the very rapid increase in residential and commercial photovoltaic (PV) power systems in the United States; the rapid expansion in the current and expected future use of energy efficient products that utilize DC power internally; the demonstrated energy savings of direct-DC in commercial data centers; and the current emergence of direct-DC power standards and products designed for grid-connected residential and commercial products. Based on an in-depth study of DC appliances and power systems, we assessed off-grid markets for DC appliances, the DC compatibility of mainstream electricity end-uses, and the emerging mainstream market for direct-DC appliances and power systems.

453

Computing nonnegative tensor factorizations  

E-Print Network (OSTI)

Oct 19, 2006 ... Keywords N-dimensional arrays, tensors, nonnegative tensor factorization, alternating ..... for each A(n)) are standard nonnegative linear least-squares problems over the vector ..... interface (lsNTF) implements the nonnegative tensor factorization for N = 3 and relies on .... and inaccurate measurements.

2006-10-18T23:59:59.000Z

454

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

455

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

456

Origin, distribution, and movement of brine in the Permian Basin (U. S. A. ). A model for displacement of connate brine  

SciTech Connect

Na-Cl, halite Ca-Cl, and gypsum Ca-Cl brines with salinities from 45 to >300 g/L are identified and mapped in four hydrostratigraphic units in the Permian Basin area beneath western Texas and Oklahoma and eastern New Mexico, providing spatial and lithologic constraints on the interpretation of the origin and movement of brine. Na-Cl brine is derived from meteoric water as young as 5-10 Ma that dissolved anhydrite and halite, whereas Ca-Cl brine is interpreted to be ancient, modified-connate Permian brine that now is mixing with, and being displaced by, the Na-Cl brine. Displacement fronts appear as broad mixing zones with no significant salinity gradients. Evolution of Ca-Cl brine composition from ideal evaporated sea water is attributed to dolomitization and syndepositional recycling of halite and bittern salts by intermittent influx of fresh water and sea water. Halite Ca-Cl brine in the evaporite section in the northern part of the basin differs from gypsum Ca-Cl brine in the south-central part in salinity and Na/Cl ratio and reflects segregation between halite- and gypsum-precipitating lagoons during the Permian. Ca-Cl brine moved downward through the evaporite section into the underlying Lower Permian and Pennsylvanian marine section that is now the deep-basin brine aquifer, mixing there with pre-existing sea water. Buoyancy-driven convection of brine dominated local flow for most of basin history, with regional advection governed by topographically related forces dominant only for the past 5 to 10 Ma. 71 refs., 11 figs.

Bein, A.; Dutton, A.R. (Univ. of Texas, Austin (United States))

1993-06-01T23:59:59.000Z

457

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

SciTech Connect

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

458

Impact of plasma response on plasma displacements in DIII-D during application of external 3D perturbations  

SciTech Connect

The effects of applied 3D resonant magnetic perturbations are modelled with and without self-consistent plasma response. The plasma response is calculated using a linear two-fluid model. A synthetic diagnostic is used to simulate soft x-ray (SXR) emission within the steep gradient region of the pedestal, 0.98 > > 0.94. Two methods for simulating the SXR emission given the perturbed fields are considered. In the first method, the emission is assumed to be constant on magnetic field lines, with the emission on each line determined by the penetration depth into the plasma. In the second method, the emission is taken to be a function of the perturbed electron temperature and density calculated by the two-fluid model. It is shown that the latter method is more accurate within the plasma, but is inadequate in the scrape-off layer due to the breakdown of the linearized temperature equation in the two-fluid model. The resulting synthetic emission is compared to measured SXR data, which show helical m = 11 1 displacements around the 11/3 rational surface of sizes up to 5 cm, depending on the poloidal angle. The helical displacements around the 11/3 surface are identified to be directly related to the kink response, caused by amplification of non-resonant components of the magnetic field due to plasma response. The role of different plasma parameters is investigated, but it appears that the electron rotation plays a key role in the formation of screening and resonant amplification, while the kinking appears to be sensitive to the edge current density. It is also hypothesized that the plasma response affects the edge-localized-mode (ELM) stability, i.e. the discharge s operational point relative to the peeling ballooning stability boundary.

Wingen, Andreas [ORNL; Ferraro, N. M. [General Atomics, San Diego; Shafer, M.W. [Oak Ridge National Laboratory (ORNL); Unterberg, Ezekial A [ORNL; Evans, T. E. [General Atomics, San Diego; Hillis, Donald Lee [ORNL; Snyder, P. B. [General Atomics, San Diego

2014-01-01T23:59:59.000Z

459

ANL Study Shows Wind Power Decreases Power Sector Emissions ...  

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

ANL Study Shows Wind Power Decreases Power Sector Emissions ANL Study Shows Wind Power Decreases Power Sector Emissions May 1, 2012 - 3:38pm Addthis This is an excerpt from the...

460

Scotrenewables Wind Power and Marine Power Ltd | Open Energy...  

Open Energy Info (EERE)

Wind Power and Marine Power Ltd Jump to: navigation, search Name: Scotrenewables Wind Power and Marine Power Ltd Place: Orkey, Scotland, United Kingdom Zip: KW16 3AW Sector:...

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

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

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

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...

462

Northwest Power and Conservation Council Fifth Northwest Power Plan  

E-Print Network (OSTI)

.........................................................................................................................................15 E. Wind power................................................................................................................................................24 M. Fish and Wildlife

463

Voluntary Green Power Market Forecast through 2015  

SciTech Connect

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

464

Sustainability in the power plant choice  

Science Journals Connector (OSTI)

International literature presents several studies on the economics of power plants based on cash flows. However there are sustainability factors (e.g., environmental and social aspects, etc.) able to heavily bear on the sustainability of certain investments. This paper lists and quantifies these factors and ranks under different scenarios the following technologies: hydro, coal, oil, gas and nuclear. Then an overall multi-attribute model, based on the quality function deployment approach, delivers a weight for each factor, dividing its impact in the three different sustainability dimensions: economic, environmental and social. Finally the factor weights and their performances are coupled to obtain an overall ranking. The results show that hydroelectric plants are usually the best solution. Coal and nuclear could be a good choice even if each type of plant has its strengths and weaknesses. On the contrary, the oil and gas-fired plants are always the worst choice.

Giorgio Locatelli; Mauro Mancini

2013-01-01T23:59:59.000Z

465

Biomass: Potato Power  

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

POTATO POWER POTATO POWER Curriculum: Biomass Power (organic chemistry, chemical/carbon cycles, plants, energy resources/transformations) Grade Level: Grades 2 to 3 Small groups (3 to 4) Time: 30 to 40 minutes Summary: Students assemble a potato battery that will power a digital clock. This shows the connection between renewable energy from biomass and its application. Provided by the Department of Energy's National Renewable Energy Laboratory and BP America Inc. BIOPOWER - POTATO POWER Purpose: Can a potato power a clock? Materials:  A potato  A paper plate  Two pennies  Two galvanized nails  Three 8 inch insulated copper wire, with 2 inches of the insulation removed from the ends  A digital clock (with places for wire attachment)

466

PowerPoint Presentation  

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

Arkansas Power Electronics International, Inc. Arkansas Power Electronics International, Inc. DOE Peer Review November 2-3, 2006 Marcelo Schupbach, Ph.D. Senior Engineer APEI, Inc. 535 Research Center Blvd. Fayetteville, AR 72701 Phone: (479)-443-5759 Email: marcelo@apei.net Website: www.apei.net High Temperature and High Power Density SiC Power Electronic Converters Energy Storage Systems Program 2 Overview * APEI, Inc. Corporate Status * Broader Impact of SiC-based Power Converter * DOE Energy Storage System Program Phase I SBIR - SBIR Topic: Wide Band Gap Power Converter Application - APEI's Goals - Phase I Accomplishments * DOE Energy Storage System Program Phase II SBIR - APEI's Goals - Research Team and Partners - Project Status Energy Storage Systems Program 3 APEI, Inc. Mission Statement We are a small business dedicated to

467

DSW Power Projects  

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

Power Projects Contact DSW Customers Customer Meetings Environmental Review-NEPA Operations & Maintenance Planning & Projects Power Marketing Power Projects Contact DSW Customers Customer Meetings Environmental Review-NEPA Operations & Maintenance Planning & Projects Power Marketing Rates DSW Power Projects Boulder Canyon: Straddling the Colorado River near the Arizona-Nevada border, Hoover Dam in Boulder Canyon creates Lake Mead. River waters turning turbines at Hoover Powerplant produce about 2,074 MW--enough electricity for nearly 8 million people. Western markets this power to public utilities in Arizona, California and Nevada over 53.30 circuit-miles of transmission line. Central Arizona: Authorized in 1968, the Central Arizona Project in Arizona and western New Mexico was built to improve water resources in the Colorado River Basin. Segments of the authorization allowed for Federal participation in the Navajo Generating Station. The Federal share of the powerplant's combined capacity is 547 MW.

468

PowerPoint Presentation  

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

11 North American Power Group, Ltd. 11 North American Power Group, Ltd. November 17, 2011 North American Power Group, Ltd. Two Elk Energy Park Carbon Site Characterization Study Preliminary Geologic Model-Update DOE NETL Annual Meeting November, 15-17, 2011 North American Power Group Copyright 2011 NAPG Two Elk Project Location 2 North American Power Group Copyright 2011 NAPG Work Flow and Project Integration 3 North American Power Group Copyright 2011 NAPG Modeling Approach  Model basin architecture is basically constructed from data within a 25 x 25 mile square area  Geologists reviewed data and correlated tops and surfaces  Porosity, permeability, petrophysics and other information correlated from that data to create a baseline model  Additional data has yet to be added from seismic information and from on-site penetrations

469

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

470

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

2005-02-07T23:59:59.000Z

471

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, Philippines Vanadium ........ Swaziland, Central Africa Zinc ................ Peru, Canada, Mexico Silver

Scott, Christopher

472

New and Underutilized Technology: Computer Power Management Systems |  

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

Computer Power Management Systems Computer Power Management Systems New and Underutilized Technology: Computer Power Management Systems October 7, 2013 - 9:08am Addthis The following information outlines key deployment considerations for computer power management systems within the Federal sector. Benefits Computer power management systems include network-based software that manages computer power consumption by automatically putting them in standby, hibernation, or other low energy consuming state without interfering with user productivity or IT functions. Application Computer power management systems are applicable in most building categories with high computer counts. Key Factors for Deployment Life-cycle cost effectiveness studies are recommended prior to deployment. Ranking Criteria Federal energy savings, cost-effectiveness, and probability of success are

473

Power system comparison for the Pluto Express mission  

SciTech Connect

This paper presents a comparison of three advanced radioisotope power systems, along with a down sized RTG for the Pluto Express mission. These three advanced radioisotope power systems were the Radioisotope Alkali Metal Thermal--to-Electric Converter (RAMTEC), Radioisotope Stirling, and Radioisotope Thermophotovoltaic (RTPV). For the Pluto Express mission, the power requirement at the end of the 10-y mission is 74 We. It was found that all three advanced power systems could meet the required end of mission power with two General Purpose Heat Source (GPHS) modules. The RTG required six modules to meet the power requirement. Only the RAMTEC and RTPV met the mass goal of 9.5 kg. The AMTEC has a radiator area more than a factor of 10 lower than the Stirling and RTPV power systems, which simplifies spacecraft integration.

Harty, R.B. [Rockwell Aerospace, Canoga Park, CA (United States). Rocketdyne Div.

1995-12-31T23:59:59.000Z

474

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...

475

SaskPower Small Power Producers Program (Saskatchewan, Canada) | Department  

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

SaskPower Small Power Producers Program (Saskatchewan, Canada) SaskPower Small Power Producers Program (Saskatchewan, Canada) SaskPower Small Power Producers Program (Saskatchewan, Canada) < Back Eligibility Commercial Agricultural Industrial Residential Savings Category Solar Buying & Making Electricity Program Info Funding Source SaskPower State Saskatchewan Program Type Performance-Based Incentive Provider SaskPower The Small Power Producers Program accommodates customers who wish to generate up to 100 kilowatts (kW) of electricity for the purpose of offsetting power that would otherwise be purchased from SaskPower or for selling all of the power generated to SaskPower. At the beginning of the application process, you need to choose between one of two options: Sell all of the power you produce to SaskPower, or sell the

476

Karnataka Power Corporation Limited and National Thermal Power Corporation  

Open Energy Info (EERE)

Karnataka Power Corporation Limited and National Thermal Power Corporation Karnataka Power Corporation Limited and National Thermal Power Corporation JV Jump to: navigation, search Name Karnataka Power Corporation Limited and National Thermal Power Corporation JV Place India Sector Wind energy Product India-based wind power project developer. References Karnataka Power Corporation Limited and National Thermal Power Corporation JV[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Karnataka Power Corporation Limited and National Thermal Power Corporation JV is a company located in India . References ↑ "Karnataka Power Corporation Limited and National Thermal Power Corporation JV" Retrieved from "http://en.openei.org/w/index.php?title=Karnataka_Power_Corporation_Limited_and_National_Thermal_Power_Corporation_JV&oldid=3479

477

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

478

Nuclear power browning out  

SciTech Connect

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

479

Power Metering Project  

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

There are many devices around campus that use electricity, but it helps to have an understanding of how much power each type of device uses. With this information, you are better able to focus efforts on reducing power consumption. With basic power data collection and analysis, we can begin to answer questions like: how much money does it cost the school to leave all the computers on at night?

480

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

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

Power Supply Synchronization without Communication  

E-Print Network (OSTI)

as Micro-Grid based Electrical Power Systems ­ MGEPS [2]; and in Parallel Connected Uninterruptible Power

Moehlis, Jeff

482

EIA Electric Power Forms  

Gasoline and Diesel Fuel Update (EIA)

Electric Power Forms Electric Power Forms EIA Electric Power Forms Listing of Publicly Available and Confidential Data EIA's statistical surveys encompass each significant electric supply and demand activity in the United States. Most of the electric power survey forms resulting data elements are published, but respondent confidentiality is required. The chart below shows the data elements for each survey form and how each data element is treated in regard to confidentiality. Data Categories Data collection forms EIA- 411 EIA- 826 EIA- 860 EIA- 860M EIA- 861 EIA- 923 Frame Information Utility identification and iocation -- -- -- -- X -- Plant identification and iocation -- -- -- X -- X Generation and fuel Latitude and longitude -- -- X -- -- --

483

Magnets and Power Supplies  

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

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

484

Southwestern Power Administration  

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

7 ANNUAL REPORT 7 ANNUAL REPORT Southwestern Power Administration Letter to the Secretary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 About Southwestern. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Accomplishments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Supplementary Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

485

Combined Heat and Power  

Office of Environmental Management (EM)

energy costs and 31 emissions while also providing more resilient and reliable electric power and thermal energy 1 . CHP 32 systems combine the production of heat (for both...

486

SOLAR MARKET POWERS SILICON  

Science Journals Connector (OSTI)

SOLAR MARKET POWERS SILICON ... Polysilicon shortages are boon to manufacturers, bane of solar energy industry ... Solar energy is a relatively new market for polysilicon manufacturers. ...

JEAN-FRA&CCEDIL;NOIS TREMBLAY

2006-10-02T23:59:59.000Z

487

BONNEVILLE POWER ADMINISTRATION  

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

Conservation Rate Credit (CRC) - A current funding mechanism that provides a discounted power rate to participating utilities, conditioned on documented expenditures on qualifying...

488

Bonneville Power Administration  

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

o Includes option to elect into Shared Rate Plan, if room under limit Bonneville Power Administration 061708 Revision (Original version issued externally April 11, 2008)...

489

Clean Coal Power Initiative  

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

"Clean coal technology" describes a new generation of energy processes that sharply reduce air emissions and other pollutants from coal-burning power plants.

490

Wind Power Forecasting  

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

Retrospective Reports 2011 Smart Grid Wind Integration Wind Integration Initiatives Wind Power Forecasting Wind Projects Email List Self Supplied Balancing Reserves Dynamic...

491

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

492

Wind Power Forecasting  

Science Journals Connector (OSTI)

The National Center for Atmospheric Research (NCAR) has configured a Wind Power Forecasting System for Xcel Energy that integrates high resolution and ensemble...

Sue Ellen Haupt; William P. Mahoney; Keith Parks

2014-01-01T23:59:59.000Z

493

PowerPoint Presentation  

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

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

494

Municipal Electric Power (Minnesota)  

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

495

Southwestern Power Administration  

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

Open Access Tariff Standards of Conduct Transmission Planning Open Access Tariff Pursuant to an agreement between Southwestern and Southwest Power Pool, Inc. (SPP), which became...

496

Southwestern Power Administration  

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

equipment, and services to support its mission of marketing and delivering Federal hydroelectric power: 1569138161-kV field equipment such as circuit breakers, coupling...

497

Southwestern Power Administration  

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

Environment Southwestern's mission of marketing and delivering Federal hydroelectric power fully supports the U.S. Department of Energy's strategic goal of improving...

498

Power System Electrician Construction  

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

Join the Bonneville Power Administration (BPA) for a challenging and rewarding career, while working, living, and playing in the Pacific Northwest states (Washington, Oregon, Montana, Idaho). The...

499

Combined Heat & Power  

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

available today." -American Council for an Energy-Efficient Economy What is Combined Heat & Power (CHP)? Federal Utility Partnership Working Group May 7 - 8, 2014 Virginia...

500

PowerPoint Presentation  

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

Awards Lab-Level Objectives distinguish PNNL Chemical Imaging of Dynamic Systems Chemical Conversions for Sustainable Energy Efficient and Secure Power Grid Disruption of Illicit...