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Note: This page contains sample records for the topic "heating machine drive" 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

Heat Machines and Quantum Systems  

E-Print Network [OSTI]

Heat Machines and Quantum Systems: Towards the Third Law Thesis submitted for the degree of "Doctor Machines and Quantum Systems: Towards the Third Law Thesis submitted for the degree of "Doctor

Kosloff, Ronnie

2

Multistage axial-flux PM machine for wheel direct drive  

SciTech Connect (OSTI)

The design of direct-drive wheel motors must comply with diameter restriction due to housing the motor in a wheel rim and allow the achievement of very high torque density and overload capability. Slotless axial-flux permanent magnet machines (AFPMs) prove to be the best candidate for application in electric vehicles as direct-drive wheel motors, as in comparison with conventional machines they allow designs with higher compactness, lightness and efficiency. The paper presents a newly conceived AFPM which has a multistage structure and a water-cooled ironless stator. In the proposed new topology of the machine the space formerly occupied by the toroidal core becomes a water duct, which removes heat directly from the interior surface of the stator winding. The high efficiency of the machine cooling arrangement allows long-term 100% overload operation and great reduction of the machine weight. The multistage structure of the machine is suited to overcome the restriction on the machine diameter and meet the torque required at the wheel shaft. The paper gives guidelines for the design of a multistage AFPM with water-cooled ironless stator, and describes characteristics of a two-stage prototype machine rated 215 N{center_dot}m, 1,100 r/min.

Caricchi, F.; Crescimbini, F.; Mezzetti, F.; Santini, E. [Univ. of Rome La Sapienza (Italy). Dept. of Electrical Engineering] [Univ. of Rome La Sapienza (Italy). Dept. of Electrical Engineering

1996-07-01T23:59:59.000Z

3

Heat resources and organic Rankine cycle machines  

Science Journals Connector (OSTI)

Abstract Various Rankine cycle architectures for single fluids and other improved versions operating with ammonia/water mixture are presented in this paper. Untapped heat resources and their potential for driving organic Rankine cycles are outlined. The nature – state and temperature of the heat source significantly influences the choice of the type of organic Rankine cycle machine. The temperature appears as a critical parameter during the selection process. Modules differ from one another from technology, size and cost viewpoints. The investment cost of an ORC project includes machine, engineering, system integration, capital costs, etc. and is closely linked to the application.

Bertrand F. Tchanche; M. Pétrissans; G. Papadakis

2014-01-01T23:59:59.000Z

4

Minimal universal quantum heat machine  

E-Print Network [OSTI]

In traditional thermodynamics the Carnot cycle yields the ideal performance bound of heat engines and refrigerators. We propose and analyze a minimal model of a heat machine that can play a similar role in quantum regimes. The minimal model consists of a single two-level system with periodically modulated energy splitting that is permanently, weakly, coupled to two spectrally-separated heat baths at different temperatures. The equation of motion allows to compute the stationary power and heat currents in the machine consistently with the second-law of thermodynamics. This dual-purpose machine can act as either an engine or a refrigerator (heat pump) depending on the modulation rate. In both modes of operation the maximal Carnot efficiency is reached at zero power. We study the conditions for finite-time optimal performance for several variants of the model. Possible realizations of the model are discussed.

David Gelbwaser-Klimovsky; Robert Alicki; Gershon Kurizki

2012-09-06T23:59:59.000Z

5

Electric machine and current source inverter drive system  

SciTech Connect (OSTI)

A drive system includes an electric machine and a current source inverter (CSI). This integration of an electric machine and an inverter uses the machine's field excitation coil for not only flux generation in the machine but also for the CSI inductor. This integration of the two technologies, namely the U machine motor and the CSI, opens a new chapter for the component function integration instead of the traditional integration by simply placing separate machine and inverter components in the same housing. Elimination of the CSI inductor adds to the CSI volumetric reduction of the capacitors and the elimination of PMs for the motor further improve the drive system cost, weight, and volume.

Hsu, John S

2014-06-24T23:59:59.000Z

6

Simplified Modelling and Control of a Synchronous Machine with VariableSpeed SixStep Drive  

E-Print Network [OSTI]

of electrical power flow in the machine. Cost is a driving factor in the design of such a system, and the power frequency than PWM as well. II. VARIABLE­SPEED ELECTRIC MACHINE DRIVES While the choice of driveSimplified Modelling and Control of a Synchronous Machine with Variable­Speed Six­Step Drive

Sanders, Seth

7

Driving gear rack cleaner for a mining machine  

SciTech Connect (OSTI)

A driving gear for a mining machine is described that is comprised of a coil chain wound over a driving wheel and a jockey wheel and co-operating with a rack mounted along a conveyor. A sweep-off gear is pivotably mounted in front of a slide of the machine at a level above the rack. The sweep-off gear has a sweep-off surface which is inclined both with respect to the longitudinal axis of the rack and the horizontal surface of the rack teeth for sweepingoff bodies from the rack onto the conveyor. Nozzles are provided on the gear for washing the rack with a water stream under pressure at an angle with respect to the surface of the rack.

Blazewicz, A.; Krutki, M.; Mandat, K.; Sedlaczek, J.; Wozniak, T.

1980-12-23T23:59:59.000Z

8

Multi-stage axial-flux PM machine for wheel direct drive  

SciTech Connect (OSTI)

The design of direct-driven wheel motors must comply with diameter restriction due to housing the motor in a wheel rim and allow the achievement of very high torque density and overload capability. Slotless axial-flux permanent magnet machines (AFPMs) prove to be one best candidate for application in electric vehicles as direct-drive wheel motors, as in comparison with conventional machines they allow designs with higher compactness, lightness and efficiency. The paper presents a newly-conceived AFPM which has multi-stage structure and water-cooled ironless stator. In the proposed new topology of the machine the space formerly occupied by the toroidal core becomes a water duct, which removes heat directly from the interior surface of the stator winding. The high efficiency of the machine cooling arrangement allows long-term 100% overload operation and great reduction of the machine weight. The multistage structure of the machine is suited to overcome the restriction on the machine diameter and meet the torque required at the wheel shaft. The paper gives guidelines for the design of a multi-stage AFPM with water-cooled ironless stator, and describes characteristics of a two-stage prototype machine rated 220 Nm, 1,100 rpm.

Caricchi, F.; Crescimbini, F.; Mezzetti, F.; Santini, E. [Univ. of Rome La Sapienza (Italy). Dept. of Electrical Engineering

1995-12-31T23:59:59.000Z

9

Working on new gas turbine cycle for heat pump drive  

E-Print Network [OSTI]

Working on new gas turbine cycle for heat pump drive FILE COPY TAP By Irwin Stambler, Field Editor, is sized for a 10-ton heat pump system - will be scaled to power a commercial product line ranging from 7 of the cycle- as a heat pump drive for commercial installations. Company is testing prototype gas turbine

Oak Ridge National Laboratory

10

Intelligent Control of the Linear Motor Direct Drive Feed System for CNC Machine Tools  

Science Journals Connector (OSTI)

The linear feed system directly driven by a linear motor is more and more widely used in high speed CNC machine tools. In this linear “direct drive” feed system, all mechanical transmission elements are eliminated. The linear motor’s ... Keywords: intelligent control, linear motor, direct drive, linear feed system, machine tool

Shuhong Xiao; Guangyuan Zheng; Shuquan Chen

2008-12-01T23:59:59.000Z

11

SDEMPED 2005 -International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives  

E-Print Network [OSTI]

and Drives Vienna, Austria, 7-9 September 2005 Rotor fault detection of electrical machines by low frequencySDEMPED 2005 - International Symposium on Diagnostics for Electric Machines, Power Electronics the reliability of fault detection on electrical machines by analysis of the low frequency magnetic stray field

Paris-Sud XI, Université de

12

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

13

Predictions of fast wave heating, current drive, and current drive antenna arrays for advanced tokamaks  

SciTech Connect (OSTI)

The objective of the advanced tokamak program is to optimize plasma performance leading to a compact tokamak reactor through active, steady state control of the current profile using non-inductive current drive and profile control. To achieve these objectives requires compatibility and flexibility in the use of available heating and current drive systems--ion cyclotron radio frequency (ICRF), neutral beams, and lower hybrid. For any advanced tokamak, the following are important challenges to effective use of fast waves in various roles of direct electron heating, minority ion heating, and current drive: (1) to employ the heating and current drive systems to give self-consistent pressure and current profiles leading to the desired advanced tokamak operating modes; (2) to minimize absorption of the fast waves by parasitic resonances, which limit current drive; (3) to optimize and control the spectrum of fast waves launched by the antenna array for the required mix of simultaneous heating and current drive. The authors have addressed these issues using theoretical and computational tools developed at a number of institutions by benchmarking the computations against available experimental data and applying them to the specific case of TPX.

Batchelor, D.B.; Baity, F.W.; Carter, M.D. [and others

1994-12-31T23:59:59.000Z

14

Optimisation and comparison of integrated models of direct-drive linear machines for wave energy conversion   

E-Print Network [OSTI]

Combined electrical and structural models of five types of permanent magnet linear electrical machines suitable for direct-drive power take-off on wave energy applications are presented. Electromagnetic models were ...

Crozier, Richard Carson

2014-06-30T23:59:59.000Z

15

AC Ward Leonard drive systems: Revisiting the four-quadrant operation of AC machines  

Science Journals Connector (OSTI)

Abstract In this paper, the problem of controlling the speed of AC machines in four quadrants is revisited from a completely new viewpoint, based on the idea of powering an AC machine with a synchronous generator that generates a variable-voltage–variable-frequency supply. This is a natural, mathematical, but not physical, extension of the conventional Ward Leonard drive systems for DC machines to AC machines. As a result, AC drives can be regarded as generator-motor systems, which facilitate the analysis of AC drives and the introduction of other special functions because a system consisting of a generator and a motor is easier to be handled than the conventional AC drive that consists of an inverter and a motor. Control strategies, with and without a speed sensor, are proposed to implement this idea and the experimental results are presented to demonstrate the feasibility.

Qing-Chang Zhong

2013-01-01T23:59:59.000Z

16

EV3 : Traction drives and generators A: Electric machine design and optimization 1  

E-Print Network [OSTI]

EV3 : Traction drives and generators A: Electric machine design and optimization 1 Influence Electrical Machine Type B. Aslan1 , J. Korecki1 , T. Vigier1 , E. Semail1 bassel.aslan@yahoo.com, korecki according to the electrical angle e (angle between current and back-EMF vector), for different values

Boyer, Edmond

17

EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop  

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

Electric Drive (Power Electric Drive (Power Electronics and Electric Machines) Workshop Tuesday, July 24, 2012 - Doubletree O'Hare, Chicago, IL Event Objective: DOE aims to obtain stakeholder input on the Power Electronics and Electric Machines (PEEM) goals of the EV Everywhere Grand Challenge. This input will advise the aggressive next-generation technology research and development necessary to enable U.S. companies to be the first in the world to produce plug-in electric vehicles (PEVs) that are as affordable and convenient for the average American family as today's gasoline-powered vehicles within the next 10 years. The EV Everywhere Grand Challenge Electric Drive (Power Electronics and Electric Machines) Workshop was attended by senior officials of the Department of Energy and representatives from the following

18

Spectral Effects on Fast Wave Core Heating and Current Drive  

SciTech Connect (OSTI)

Recent results obtained with high harmonic fast wave (HHFW) heating and current drive (CD) on NSTX strongly support the hypothesis that the onset of perpendicular fast wave propagation right at or very near the launcher is a primary cause for a reduction in core heating efficiency at long wavelengths that is also observed in ICRF heating experiments in numerous tokamaks. A dramatic increase in core heating efficiency was first achieved in NSTX L-mode helium majority plasmas when the onset for perpendicular wave propagation was moved away from the antenna and nearby vessel structures. Efficient core heating in deuterium majority L mode and H mode discharges, in which the edge density is typically higher than in comparable helium majority plasmas, was then accomplished by reducing the edge density in front of the launcher with lithium conditioning and avoiding operational points prone to instabilities. These results indicate that careful tailoring of the edge density profiles in ITER should be considered to limit rf power losses to the antenna and plasma facing materials. Finally, in plasmas with reduced rf power losses in the edge regions, the first direct measurements of high harmonic fast wave current drive were obtained with the motional Stark effect (MSE) diagnostic. The location and radial dependence of HHFW CD measured by MSE are in reasonable agreement with predictions from both full wave and ray tracing simulations.

C.K. Phillips, R.E. Bell, L.A. Berry, P.T. Bonoli, R.W. Harvey, J.C. Hosea, E.F. Jaeger, B.P. LeBlanc, P.M. Ryan, G. Taylor, E.J. Valeo, J.R. Wilson, J.C. Wright, H. Yuh, and the NSTX Team

2009-05-11T23:59:59.000Z

19

In-line drivetrain and four wheel drive work machine using same  

DOE Patents [OSTI]

A four wheel drive articulated mine loader is powered by a fuel cell and propelled by a single electric motor. The drivetrain has the first axle, second axle, and motor arranged in series on the work machine chassis. Torque is carried from the electric motor to the back differential via a pinion meshed with the ring gear of the back differential. A second pinion oriented in an opposite direction away from the ring gear is coupled to a drive shaft to transfer torque from the ring gear to the differential of the front axle. Thus, the ring gear of the back differential acts both to receive torque from the motor and to transfer torque to the forward axle. The in-line drive configuration includes a single electric motor and a single reduction gear to power the four wheel drive mine loader.

Hoff, Brian (East Peoria, IL)

2008-08-05T23:59:59.000Z

20

Numerical modeling of lower hybrid heating and current drive  

SciTech Connect (OSTI)

The generation of currents in toroidal plasma by application of waves in the lower hybrid frequency range involves the interplay of several physical phenomena which include: wave propagation in toroidal geometry, absorption via wave-particle resonances, the quasilinear generation of strongly nonequilibrium electron and ion distribution functions, and the self-consistent evolution of the current density in such a nonequilibrium plasma. We describe a code, LHMOD, which we have developed to treat these aspects of current drive and heating in tokamaks. We present results obtained by applying the code to a computation of current ramp-up and to an investigation of the possible importance of minority hydrogen absorption in a deuterium plasma as the ''density limit'' to current drive is approached.

Valeo, E.J.; Eder, D.C.

1986-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "heating machine drive" 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

Electron cyclotron heating and current drive using the electron Bernstein modes .  

E-Print Network [OSTI]

??Electron Bernstein waves are a mode of oscillation in a plasma, thought a candidate for providing radiofrequency heating and non-inductive current drive in spherical tokamaks.… (more)

McGregor, Duncan Ekundayo

2007-01-01T23:59:59.000Z

22

EV Everywhere EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop Agenda  

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

- 7/20/2012 - 7/20/2012 EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop Tuesday, July 24, 2012 - Doubletree O'Hare, Chicago, IL Event Objective: DOE aims to obtain stakeholder input on the Power Electronics and Electric Machines (PEEM) goals of the EV Everywhere Grand Challenge. This input will advise the aggressive next- generation technology research and development necessary to enable U.S. companies to be the first in the world to produce plug-in electric vehicles (PEVs) that are as affordable and convenient for the average American family as today's gasoline-powered vehicles within the next 10 years. 8:30-8:35 AM CONTINENTAL BREAKFAST 8:30-8:35 AM CALL TO ORDER Mr. Patrick Davis, DOE EERE Vehicle Technologies Program

23

Heat-machine control by quantum-state preparation: from quantum engines to refrigerators  

E-Print Network [OSTI]

We explore the dependence of the performance bounds of heat engines and refrigerators on the initial quantum state and the subsequent evolution of their piston, modeled by a quantized harmonic oscillator. Our goal is to provide a fully quantized treatment of self-contained (autonomous) heat machines, as opposed to their prevailing semiclassical description that consists of a quantum system alternately coupled to a hot or a cold heat bath, and parametrically driven by a classical time-dependent piston or field. Here by contrast, there is no external time-dependent driving. Instead, the evolution is caused by the stationary simultaneous interaction of two heat baths (having distinct spectra and temperatures) with a single two-level system that is in turn coupled to the quantum piston. The fully quantized treatment we put forward allows us to investigate work extraction and refrigeration by the tools of quantum-optical amplifier and dissipation theory, particularly, by the analysis of amplified or dissipated phase-plane quasiprobability distributions. Our main insight is that quantum states may be thermodynamic resources and can provide a powerful handle, or control, on the efficiency of the heat machine. In particular, a piston initialized in a coherent state can cause the engine to produce work at an efficiency above the Carnot bound in the linear amplification regime. In the refrigeration regime, the coefficient of performance can transgress the Carnot bound if the piston is initialized in a Fock state. The piston may be realized by a vibrational mode, as in nanomechanical setups, or an electromagnetic field mode, as in cavity-based scenarios.

David Gelbwaser-Klimovsky; Gershon Kurizki

2015-01-31T23:59:59.000Z

24

Field Verification of Energy and Demand Savings of Two Injection Molding Machines Retrofitted with Variable Frequency Drives  

E-Print Network [OSTI]

Detailed field measurements of energy consumption (kWh) and demand (kW) are conducted on two injection molding machines (IMMs) used in a typical plastic manufacturing facility in the San Francisco Bay Area, with/without Variable Frequency Drives...

Liou, S. P.; Aguiar, D.

25

Heating hydrocarbon containing formations in a line drive staged process  

DOE Patents [OSTI]

Method for treating a hydrocarbon containing formation are described herein. Methods may include providing heat to a first section of the formation with one or more first heaters in the first section. First hydrocarbons may be heated in the first section such that at least some of the first hydrocarbons are mobilized. At least some of the mobilized first hydrocarbons may be produced through a production well located in a second section of the formation. The second section may be located substantially adjacent to the first section. A portion of the second section may be provided some heat from the mobilized first hydrocarbons, but is not conductively heated by heat from the first heaters. Heat may be provided to the second section with one or more second heaters in the second section to further heat the second section.

Miller, David Scott (Katy, TX)

2009-07-21T23:59:59.000Z

26

Heat Transfer and Fluid Mechanics for Laser Machining  

Science Journals Connector (OSTI)

This chapter introduces some of the basic concepts in heat transfer, fluid mechanics and numerical solution methods. Since laser ... process, an understanding of issues in conduction heat transfer, convection heat

George Chryssolouris

1991-01-01T23:59:59.000Z

27

Uncooled two-stroke gas engine for heat pump drive  

SciTech Connect (OSTI)

This paper describes the design and analysis of a family of natural gas fueled, uncooled, two-stroke, lean burn, thermal-ignition engines. The engines were designed specifically to meet the requirements dictated by the commercial heat pump application. The engines have a power output ranging from 15 to 100 kW; a thermal efficiency of 36 percent; a mean time between failure greater than 3 years; and a life expectancy of 45,000 hours. To meet these specifications a family of very simple, uncooled, two-stroke cycle engines were designed which have no belts, gears or pumps. The engines utilize crankcase scavenging, lubrication, stratified fuel introduction to prevent raw fuel from escaping with the exhaust gas, use of and ceramic rolling contact bearings. The Thermal Ignition Combustion System (TICS) is used for ignition to enable the engines to operate with a lean mixture and eliminate spark plug erosion. 4 refs., 16 figs.

Badgley, P.; McNulty, D.; Woods, M.

1990-01-01T23:59:59.000Z

28

Abstract-Some insight as to the application of modern electric drive expertise to micro-scale electric machines is given.  

E-Print Network [OSTI]

Abstract- Some insight as to the application of modern electric drive expertise to micro-scale electric machines is given. The discussion is supported by a summary of current micromotor technology) that considerable insight from drives experts can be offered in either case. I. INTRODUCTION Some 100 years

Chapman, Patrick

29

EV Everywhere EV Everywhere Grand Challenge- Electric Drive (Power Electronics and Electric Machines) Workshop Agenda  

Broader source: Energy.gov [DOE]

Agenda for the EV Everywhere Grand Challenge - Electric Drive Workshop on July 24, 2012 at the Doubletree O'Hare, Chicago, IL

30

EV Everywhere Grand Challenge- Electric Drive (Power Electronics and Electric Machines) Workshop  

Broader source: Energy.gov [DOE]

List of companies in attendance at the Electric Drive Workshop held on July 24, 2012 at the Doubletree O'Hare, Chicago, IL

31

Heating, Current Drive, Operations and Diagnostics Issues Understand implications of reduced repetition rate, is it adequate for the  

E-Print Network [OSTI]

Heating, Current Drive, Operations and Diagnostics Issues Operations · Understand implications of ECRH to improve startup. Heating · ICRF is the base line heating system, compare with NBI and ECRH withstand the anticipated heat loads? Diagnostics · Capability of beam diagnostics for J(r), E(r), etc

32

In situ heat treatment of a tar sands formation after drive process treatment  

DOE Patents [OSTI]

A method for treating a tar sands formation includes providing a drive fluid to a hydrocarbon containing layer of the tar sands formation to mobilize at least some hydrocarbons in the layer. At least some first hydrocarbons from the layer are produced. Heat is provided to the layer from one or more heaters located in the formation. At least some second hydrocarbons are produced from the layer of the formation. The second hydrocarbons include at least some hydrocarbons that are upgraded compared to the first hydrocarbons produced by using the drive fluid.

Vinegar, Harold J. (Bellaire, TX); Stanecki, John (Blanco, TX)

2010-09-21T23:59:59.000Z

33

International Conference on Machine Control & Guidance 2008 1 No Driving in Circles -Improving the Research and  

E-Print Network [OSTI]

Jochen WENDEBAUM*, Mats KJELLBERG CC Systems AB, Sweden Abstract The research and development of hardware the real work process, there are high restrictions concerning the access to the machine during work time, so this work has to be done in working breaks and before and after work, leading to an exhausting

34

A Five-Phase Brushless DC-Machine Direct Drive System EPE Journal Vol. 14 no  

E-Print Network [OSTI]

inverter control scheme and higher cost. Control complexity is easily managed with the new generation-leg inverter has been shown to be able to supply two three-phase induction motors; such power structure allows, their inverters, modeling and control. However, polyphase schemes have been used in the past in drive systems

Simões, Marcelo Godoy

35

On the stabilization of neoclassical magnetohydrodynamic tearing modes using localized current drive or heating  

Science Journals Connector (OSTI)

The effectiveness of using localized current drive or heating to suppress the formation and growth of neoclassical magnetohydrodynamic(MHD) tearing modes is addressed. The most efficient way to use an auxiliary current source is to cause current to flow in the same direction as the equilibrium bootstrap current and phase the current relative to the magnetic island such that the current is deposited on the O-point of the island. Theoretical estimates for the amount of required current to suppress the formation of a large magnetic island is of order a few percent of the equilibrium current. If the suppression is successful the magnetic island will saturate at a width of order the radial localization width of the current source. Localized heating at the O-point of the magnetic island can also produce stabilizing effects relative to magnetic island growth. The effects of the driven current or heating can be illustrated by using a phase diagram of the island growth.

C. C. Hegna; J. D. Callen

1997-01-01T23:59:59.000Z

36

Rotation Drive and Momentum Transport with Electron Cyclotron Heating in Tokamak Plasmas  

SciTech Connect (OSTI)

The role of electron cyclotron resonance heating (ECRH) on the toroidal rotation velocity profile has been investigated in the JT-60U tokamak device by separating the effects of the change in momentum transport, the intrinsic rotation by pressure gradient, and the intrinsic rotation by ECRH. It is found that ECRH increases the toroidal momentum diffusivity and the convection velocity. It is also found that ECRH drives the codirection (co) intrinsic rotation inside the EC deposition radius and the counterdirection (ctr) intrinsic rotation outside the EC deposition radius. This ctr rotation starts from the EC deposition radius and propagates to the edge region.

Yoshida, M.; Sakamoto, Y.; Takenaga, H.; Ide, S.; Oyama, N.; Kobayashi, T.; Kamada, Y. [Japan Atomic Energy Agency, Naka, Ibaraki-ken, 311-0193 (Japan)

2009-08-07T23:59:59.000Z

37

Rotation Drive and Momentum Transport with Electron Cyclotron Heating in Tokamak Plasmas  

Science Journals Connector (OSTI)

The role of electron cyclotron resonance heating (ECRH) on the toroidal rotation velocity profile has been investigated in the JT-60U tokamak device by separating the effects of the change in momentum transport, the intrinsic rotation by pressure gradient, and the intrinsic rotation by ECRH. It is found that ECRH increases the toroidal momentum diffusivity and the convection velocity. It is also found that ECRH drives the codirection (co) intrinsic rotation inside the EC deposition radius and the counterdirection (ctr) intrinsic rotation outside the EC deposition radius. This ctr rotation starts from the EC deposition radius and propagates to the edge region.

M. Yoshida; Y. Sakamoto; H. Takenaga; S. Ide; N. Oyama; T. Kobayashi; Y. Kamada (the JT-60 Team)

2009-08-04T23:59:59.000Z

38

Effect of turbulence on electron cyclotron current drive and heating in ITER  

E-Print Network [OSTI]

Non-linear local electromagnetic gyrokinetic turbulence simulations of the ITER standard scenario H-mode are presented for the q=3/2 and q=2 surfaces. The turbulent transport is examined in regions of velocity space characteristic of electrons heated by electron cyclotron waves. Electromagnetic fluctuations and sub-dominant micro-tearing modes are found to contribute significantly to the transport of the accelerated electrons, even though they have only a small impact on the transport of the bulk species. The particle diffusivity for resonant passing electrons is found to be less than 0.15 m^2/s, and their heat conductivity is found to be less than 2 m^2/s. Implications for the broadening of the current drive and energy deposition in ITER are discussed.

Casson, F J; Angioni, C; Buchholz, R; Peeters, A G

2014-01-01T23:59:59.000Z

39

Modeling and Experimental Investigation of a Variable Speed Drive Water Source Heat Pump  

Science Journals Connector (OSTI)

Accurate variable speed characteristics are needed for water source heat pumps (WSHP) to design variable speed controls to adjust refrigerant flow rates in heat pumps and air conditioners. The system capacity can then be regulated to match the compressor loads to the heating or cooling needs to improve the energy efficiency and lower energy costs. The motor and compression characteristics of WSHP were modeled to include the coupling between the motor speed and the torque characteristics and compression characteristics. An analytical model is given for a variable speed hermetic scroll compressor that describes various factors, such as the drive frequency, suction pressure, and discharge pressure as a function of the compressor speed. The model was validated experimentally using R22 and \\{R134a\\} in an experimental WSHP with variable speed control using frequency conversion. The results show that the analytical model properly describes the variable speed characteristics and provides a control strategy for adjusting the capacity of scroll compressors to match the heat pump or air conditioner operating conditions.

Zhifang Xue; Lin Shi

2010-01-01T23:59:59.000Z

40

Lower Hybrid Heating and Current Drive on the Alcator C-Mod Tokamak  

SciTech Connect (OSTI)

On the Alcator C-Mod tokamak, lower hybrid current drive (LHCD) is being used to modify the current profile with the aim of obtaining advanced tokamak (AT) performance in plasmas with parameters similar to those that would be required on ITER. To date, power levels in excess of 1 MW at a frequency of 4.6 GHz have been coupled into a variety of plasmas. Experiments have established that LHCD on C-Mod behaves globally as predicted by theory. Bulk current drive efficiencies, n20IlhR/Plh ~ 0.25, inferred from magnetics and MSE are in line with theory. Quantitative comparisons between local measurements, MSE, ECE and hard x-ray bremsstrahlung, and theory/simulation using the GENRAY, TORIC-LH CQL3D and TSC-LSC codes have been performed. These comparisons have demonstrated the off-axis localization of the current drive, its magnitude and location dependence on the launched n|| spectrum, and the use of LHCD during the current ramp to save volt-seconds and delay the peaking of the current profile. Broadening of the x-ray emission profile during ICRF heating indicates that the current drive location can be controlled by the electron temperature, as expected. In addition, an alteration in the plasma toroidal rotation profile during LHCD has been observed with a significant rotation in the counter current direction. Notably, the rotation is accompanied by peaking of the density and temperature profiles on a current diffusion time scale inside of the half radius where the LH absorption is taking place.

R. Wilson, R. Parker, M. Bitter, P.T. Bonoli, C. Fiore, R.W. Harvey, K. Hill, A.E. Hubbard, J.W. Hughes, A. Ince-Cushman, C. Kessel, J.S. Ko, O. Meneghini, C.K. Phillips, M. Porkolab, J. Rice, A.E. Schmidt, S. Scott,S. Shiraiwa, E. Valeo, G.Wallace, J.C. Wright and the Alcator C-Mod Team

2009-11-20T23:59:59.000Z

Note: This page contains sample records for the topic "heating machine drive" 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

HHFW Heating and Current Drive Studies of NSTX H-Mode Plasmas  

SciTech Connect (OSTI)

30 MHz high-harmonic fast wave (HHFW) heating and current drive are being developed to assist fully non-inductive plasma current (I{sub p}) ramp-up in NSTX. The initial approach to achieving this goal has been to heat I{sub p} = 300 kA inductive plasmas with current drive antenna phasing in order to generate an HHFW H-mode with significant bootstrap and RF-driven current. Recent experiments, using only 1.4 MW of RF power (P{sub RF}), achieved a noninductive current fraction, f{sub NI} {approx} 0.65. Improved antenna conditioning resulted in the generation of I{sub p} = 650 kA HHFW H-mode plasmas, with f{sub NI} {approx} 0.35, when P{sub RF} {ge} 2.5 MW. These plasmas have little or no edge localized mode (ELM) activity during HHFW heating, a substantial increase in stored energy and a sustained central electron temperature of 5-6 keV. Another focus of NSTX HHFW research is to heat an H-mode generated by 90 keV neutral beam injection (NBI). Improved HHFW coupling to NBI-generated H-modes has resulted in a broad increase in electron temperature profile when HHFW heating is applied. Analysis of a closely matched pair of NBI and HHFW+NBI H-mode plasmas revealed that about half of the antenna power is deposited inside the last closed flux surface (LCFS). Of the power damped inside the LCFS about two-thirds is absorbed directly by electrons and one-third accelerates fast-ions that are mostly promptly lost from the plasma. At longer toroidal launch wavelengths, HHFW+NBI H-mode plasmas can have an RF power flow to the divertor outside the LCFS that significantly reduces RF power deposition to the core. ELMs can also reduce RF power deposition to the core and increase power deposition to the edge. Recent full wave modeling of NSTX HHFW+NBI H-mode plasmas, with the model extended to the vessel wall, predicts a coaxial standing mode between the LCFS and the wall that can have large amplitudes at longer launch wavelengths. These simulation results qualitatively agree with HHFW+NBI H-mode data that show decreasing core RF heating efficiency and increasing RF power flow to the lower divertor at longer launch wavelengths.

G. Taylor, P.T. Bonoli, D.L. Green, R.W. Harvey, J.C. Hosea, E.F. Jaeger, B.P. LeBlanc, R. Maingi, C.K. Phillips, P.M. Ryan, E.J. Valeo, J.R. Wilson, J.C. Wright, and the NSTX Team

2011-06-08T23:59:59.000Z

42

HHFW Heating and Current Drive Studies of NSTX H-Mode Plasmas  

SciTech Connect (OSTI)

30 MHz high-harmonic fast wave (HHFW) heating and current drive are being developed to assist fully non-inductive plasma current (I{sub p}) ramp-up in NSTX. The initial approach to achieving this goal has been to heat I{sub p} = 300 kA inductive plasmas with current drive antenna phasing in order to generate an HHFW H-mode with significant bootstrap and RF-driven current. Recent experiments, using only 1.4 MW of RF power (P{sub RF}), achieved a non-inductive current fraction, f{sub NI}{approx}0.65. Improved antenna conditioning resulted in the generation of I{sub p} = 650 kA HHFW H-mode plasmas, with f{sub NI}{approx}0.35, when P{sub RF}{>=}2.5 MW. These plasmas have little or no edge localized mode (ELM) activity during HHFW heating, a substantial increase in stored energy and a sustained central electron temperature of 5-6 keV. Another focus of NSTX HHFW research is to heat an H-mode generated by 90 keV neutral beam injection (NBI). Improved HHFW coupling to NBI-generated H-modes has resulted in a broad increase in electron temperature profile when HHFW heating is applied. Analysis of a closely matched pair of NBI and HHFW+NBI H-mode plasmas revealed that about half of the antenna power is deposited inside the last closed flux surface (LCFS). Of the power damped inside the LCFS about two-thirds is absorbed directly by electrons and one-third accelerates fast-ions that are mostly promptly lost from the plasma. At longer toroidal launch wavelengths, HHFW+NBI H-mode plasmas can have an RF power flow to the divertor outside the LCFS that significantly reduces RF power deposition to the core. ELMs can also reduce RF power deposition to the core and increase power deposition to the edge. Recent full wave modeling of NSTX HHFW+NBI H-mode plasmas, with the model extended to the vessel wall, predicts a coaxial standing mode between the LCFS and the wall that can have large amplitudes at longer launch wavelengths. These simulation results qualitatively agree with HHFW+NBI H-mode data that show decreasing core RF heating efficiency and increasing RF power flow to the lower divertor at longer launch wavelengths.

Taylor, G.; Hosea, J. C.; LeBlanc, B. P.; Phillips, C. K.; Valeo, E. J.; Wilson, J. R. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States); Bonoli, P. T.; Wright, J. C. [MIT Plasma Science and Fusion Center, Cambridge, Massachusetts 02139 (United States); Green, D. L.; Jaeger, E. F.; Maingi, R.; Ryan, P. M. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); Harvey, R. W. [CompX, PO Box 2672, Del Mar, California 92014 (United States)

2011-12-23T23:59:59.000Z

43

Integrated modelling of steady-state scenarios and heating and current drive mixes for ITER  

Science Journals Connector (OSTI)

Recent progress on ITER steady-state (SS) scenario modelling by the ITPA-IOS group is reviewed. Code-to-code benchmarks as the IOS group's common activities for the two SS scenarios (weak shear scenario and internal transport barrier scenario) are discussed in terms of transport, kinetic profiles, and heating and current drive (CD) sources using various transport codes. Weak magnetic shear scenarios integrate the plasma core and edge by combining a theory-based transport model (GLF23) with scaled experimental boundary profiles. The edge profiles (at normalized radius ? = 0.8–1.0) are adopted from an edge-localized mode-averaged analysis of a DIII-D ITER demonstration discharge. A fully noninductive SS scenario is achieved with fusion gain Q = 4.3, noninductive fraction fNI = 100%, bootstrap current fraction fBS = 63% and normalized beta ?N = 2.7 at plasma current Ip = 8?MA and toroidal field BT = 5.3?T using ITER day-1 heating and CD capability. Substantial uncertainties come from outside the radius of setting the boundary conditions (? = 0.8). The present simulation assumed that ?N (?) at the top of the pedestal (? = 0.91) is about 25% above the peeling–ballooning threshold. ITER will have a challenge to achieve the boundary, considering different operating conditions (Te/Ti ? 1 and density peaking). Overall, the experimentally scaled edge is an optimistic side of the prediction. A number of SS scenarios with different heating and CD mixes in a wide range of conditions were explored by exploiting the weak-shear steady-state solution procedure with the GLF23 transport model and the scaled experimental edge. The results are also presented in the operation space for DT neutron power versus stationary burn pulse duration with assumed poloidal flux availability at the beginning of stationary burn, indicating that the long pulse operation goal (3000?s) at Ip = 9?MA is possible. Source calculations in these simulations have been revised for electron cyclotron current drive including parallel momentum conservation effects and for neutral beam current drive with finite orbit and magnetic pitch effects.

M. Murakami; J.M. Park; G. Giruzzi; J. Garcia; P. Bonoli; R.V. Budny; E.J. Doyle; A. Fukuyama; N. Hayashi; M. Honda; A. Hubbard; S. Ide; F. Imbeaux; E.F. Jaeger; T.C. Luce; Y.-S. Na; T. Oikawa; T.H. Osborne; V. Parail; A. Polevoi; R. Prater; A.C.C. Sips; J. Snipes; H.E. St. John; P.B. Snyder; I. Voitsekhovitch; ITPA/Integrated Operation Scenario Group

2011-01-01T23:59:59.000Z

44

On the stabilization of neoclassical magnetohydrodynamic tearing modes using localized current drive or heating  

SciTech Connect (OSTI)

The effectiveness of using localized current drive or heating to suppress the formation and growth of neoclassical magnetohydrodynamic (MHD) tearing modes is addressed. The most efficient way to use an auxiliary current source is to cause current to flow in the same direction as the equilibrium bootstrap current and phase the current relative to the magnetic island such that the current is deposited on the O-point of the island. Theoretical estimates for the amount of required current to suppress the formation of a large magnetic island is of order a few percent of the equilibrium current. If the suppression is successful, the magnetic island will saturate at a width of order the radial localization width of the current source. Localized heating at the O-point of the magnetic island can also produce stabilizing effects relative to magnetic island growth. The effects of the driven current or heating can be illustrated by using a phase diagram of the island growth. {copyright} {ital 1997 American Institute of Physics.}

Hegna, C.C.; Callen, J.D. [Departments of Nuclear Engineering and Engineering Physics and Physics, University of Wisconsin, Madison, Wisconsin 53706-1687 (United States)] [Departments of Nuclear Engineering and Engineering Physics and Physics, University of Wisconsin, Madison, Wisconsin 53706-1687 (United States)

1997-08-01T23:59:59.000Z

45

A remotely steered millimetre wave launcher for electron cyclotron heating and current drive on ITER  

Science Journals Connector (OSTI)

High-power millimetre wave beams employed on ITER for heating and current drive at the 170 GHz electron cyclotron resonance frequency require agile steering and tight focusing of the beams to suppress neoclassical tearing modes. This paper presents experimental validation of the remote steering (RS) concept of the ITER upper port millimetre wave beam launcher. Remote steering at the entrance of the upper port launcher rather than at the plasma side offers advantages in reliability and maintenance of the mechanically vulnerable steering system. A one-to-one scale mock-up consisting of a transmission line, mitre bends, remote steering unit, vacuum window, square corrugated waveguide and front mirror simulates the ITER launcher design configuration. Validation is based on low-power heterodyne measurements of the complex amplitude and phase distribution of the steered Gaussian beam. High-power (400 kW) short pulse (10 ms) operation under vacuum, diagnosed by calorimetry and thermography of the near- and far-field beam patterns, confirms high-power operation, but shows increased power loss attributed to deteriorating input beam quality compared with low-power operation. Polarization measurements show little variation with steering, which is important for effective current drive requiring elliptical polarization for O-mode excitation. Results show that a RS range of up to ?12° to +12° can be achieved with acceptable beam quality. These measurements confirm the back-up design of the ITER ECRH&CD launcher with future application for DEMO.

W.A. Bongers; M.F. Graswinckel; A.P.H. Goede; W. Kasparek; I. Danilov; Á. Fernández Curto; M.R. de Baar; M.A. van den Berg; A.J.H. Donné; B.S.Q. Elzendoorn; R. Heidinger; P. Ivanov; O.G. Kruijt; B. Lamers; A. Meier; B. Piosczyk; B. Plaum; D.M.S. Ronden; D.J. Thoen; M. Schmid; A.G.A. Verhoeven

2010-01-01T23:59:59.000Z

46

A survey of electron Bernstein wave heating and current drive potential for spherical tokamaks  

E-Print Network [OSTI]

The electron Bernstein wave (EBW) is typically the only wave in the electron cyclotron (EC) range that can be applied in spherical tokamaks for heating and current drive (H&CD). Spherical tokamaks (STs), which feature relatively high neutron flux and good economy, operate generally in high-beta regimes, in which the usual EC O- and X- modes are cut-off. In this case, EBWs seem to be the only option that can provide features similar to the EC waves---controllable localized H&CD that can be utilized for core plasma heating as well as for accurate plasma stabilization. The EBW is a quasi-electrostatic wave that can be excited by mode conversion from a suitably launched O- or X-mode; its propagation further inside the plasma is strongly influenced by the plasma parameters. These rather awkward properties make its application somewhat more difficult. In this paper we perform an extensive numerical study of EBW H&CD performance in four typical ST plasmas (NSTX L- and H-mode, MAST Upgrade, NHTX). Coupled...

Urban, Jakub; Peysson, Yves; Preinhaelter, Josef; Shevchenko, Vladimir; Taylor, Gary; Vahala, Linda; Vahala, George

2011-01-01T23:59:59.000Z

47

RF Heating and Current Drive in Magnetically Confined Plasma: a Historical Perspective  

SciTech Connect (OSTI)

The history of high power RF waves injected into magnetically confined plasma for the purposes of heating to fusion relevant temperatures spans nearly five decades. The road to success demanded the development of the theory of wave propagation in high temperature plasma in complex magnetic field geometries, development of antenna structures and transmission lines capable of handling high RF powers, and the development of high power RF (microwave) sources. In the early days, progress was hindered by the lack of good confinement of energetic particles formed by high power RF wave-plasma interactions. For example, in the ion cyclotron resonance frequency regime (ICRF) ions with energies in the multi-100keV, or even MeV range may be formed due to the presence of efficient 'minority species' absorption. Electrons with similar energies can be formed upon the injection of RF waves in the electron cyclotron resonance (ECRH) or lower hybrid range of frequencies (LHRF) because of quasi-linear Landau (cyclotron) interactions between waves and particles. In this paper a summary of four decades of historical evolution of wave heating and current drive results will be given.

Porkolab, Miklos [Massachusetts Institute of Technology, Plasma Science and Fusion Center and Department of Physics, NW 16-288, 167 Albany Street, Cambridge, MA 02139 (United States)

2007-09-28T23:59:59.000Z

48

"Zombie" Servers and Inefficiency Drive Energy Waste at Data Centers1 U.S. server facilities are riddled with underused machines, report says.2  

E-Print Network [OSTI]

progress in this area, some using upgraded systems that can generate power from waste heat or use outside"Zombie" Servers and Inefficiency Drive Energy Waste at Data Centers1 U.S. server facilities waste documented in a report about U.S. data centers released Tuesday by the Natural8 Resources Defense

South Bohemia, University of

49

Design of Electron Cyclotron Heating and Current Drive System of ITER  

SciTech Connect (OSTI)

Since the end of EDA, the design of the Electron Cyclotron Heating and Current Drive (ECH and CD) system has been modified to respond to progress in physics understanding and change of interface conditions. Nominal RF power of 20 MW is shared by four upper launchers or one equatorial launcher RF beams are steered by front steering mirrors providing wide sweeping angle for the RF beam. DC high voltage power supply may be composed of IGBT pulse step modulators because of high frequency modulation and design flexibility to three different types of 170 GHz gyrotrons provided by three parties. The RF power from the 170 GHz gyrotron is transmitted to the launcher by 63.5 mm{phi} corrugated waveguide line and remotely switched by a waveguide switch between the upper launcher and the equatorial launcher. The ECH and CD system has also a start-up sub-system for assist of initial discharge composed of three 127.5 GHz gyrotrons and a dedicated DC high voltage power supply. Three of transmission lines are shared between 170 GHz gyrotron and 127.5 GHz gyrotron so as to inject RF beam for the start-up through the equatorial launcher. R and Ds of components for high power long pulse and mirror steering mechanism have been on-going in the parties to establish a reliable ITER ECH and CD system.

Kobayashi, N. [ITER, Cadarache (France); Bigelow, T.; Rasmussen, D. [ORNL, Oak Ridge (United States); Bonicelli, T.; Ramponi, G.; Saibene, G. [EFDA, Garching (Germany); Cirant, S. [ENEA-CNR, Milan (Italy); Denisov, G. [IAP, Nizhny Novgorod (Russian Federation); Heidinger, R.; Piosczyk, B. [FZK, Karlsruhe (Germany); Henderson, M.; Hogge, J.-P.; Thumm, M.; Tran, M. Q. [CRPP, Lausanne (Switzerland); Rao, S. L. [IPR, Bhat (India); Sakamoto, K.; Takahashi, K. [JAEA, Naka (Japan); Temkin, R. J. [MIT PSFC, Cambridge (United States); Verhoeven, A. G. A. [FOM IPP, Rijnhuizen (Netherlands); Zohm, H. [MPI IPP, Garching (Germany)

2007-09-28T23:59:59.000Z

50

Status of KSTAR 170 GHz, 1 MW Electron Cyclotron Heating and Current Drive System  

SciTech Connect (OSTI)

A 170 GHz Electron Cyclotron Heating and Current Drive (ECH/CD) system on KSTAR is designed to launch total 2.4 MW of power for up to 300 sec into the plasma. At present the first 1 MW ECH/CD system is under installation and commissioning for 2011 KSTAR campaign. The 170 GHz, 1 MW, 300 sec gyrotron and the matching optics unit (MOU) will be provided from JAEA under collaboration between NFRI and JAEA. The transmission line consists of MOU and 70 m long 63.5 mm ID corrugated waveguides with the eight miter bends. The 1 MW, 10 sec launcher is developed based on the existing two-mirror front-end launcher in collaboration with Princeton Plasma Physics Laboratory and Pohang University of Science and Technology, and is installed on the low field side in the KSTAR equatorial plane. The mirror pivot is located at 30 cm below from the equatorial plane. 3.6 MVA power supply system is manufactured and now is under commissioning to meet the triode gun operation of JAEA gyrotron. The power supply consists of 66 kV/55 A cathode power supply, mode-anode system, and 50 kV/160 mA body power supply. In this paper, the current status of KSTAR 170 GHz, 1 MW ECH/CD system will be presented as well as the experimental plan utilizing 170 GHz new ECH/CD system.

Joung, M.; Bae, Y. S.; Jeong, J. H.; Park, S.; Kim, H. J.; Yang, H. L. [National Fusion Research Institute, Daejeon (Korea, Republic of); Park, H.; Cho, M. H.; Namkung, W. [Pohang University of Science and Technology, Pohang (Korea, Republic of); Hosea, J.; Ellis, R. [Princeton Plasma Physics Laboratory, Princeton (United States); Sakamoto, K.; Kajiwara, K. [Japan Atomic Energy Agency, Ibaraki (Japan); Doane, J. [General Atomics, San Diego (United States)

2011-12-23T23:59:59.000Z

51

High power millimeter wave experiment of ITER relevant electron cyclotron heating and current drive system  

SciTech Connect (OSTI)

High power, long pulse millimeter (mm) wave experiments of the RF test stand (RFTS) of Japan Atomic Energy Agency (JAEA) were performed. The system consists of a 1 MW/170 GHz gyrotron, a long and short distance transmission line (TL), and an equatorial launcher (EL) mock-up. The RFTS has an ITER-relevant configuration, i.e., consisted by a 1 MW-170 GHz gyrotron, a mm wave TL, and an EL mock-up. The TL is composed of a matching optics unit, evacuated circular corrugated waveguides, 6-miter bends, an in-line waveguide switch, and an isolation valve. The EL-mock-up is fabricated according to the current design of the ITER launcher. The Gaussian-like beam radiation with the steering capability of 20 deg. - 40 deg. from the EL mock-up was also successfully proved. The high power, long pulse power transmission test was conducted with the metallic load replaced by the EL mock-up, and the transmission of 1 MW/800 s and 0.5 MW/1000 s was successfully demonstrated with no arcing and no damages. The transmission efficiency of the TL was 96%. The results prove the feasibility of the ITER electron cyclotron heating and current drive system.

Takahashi, K.; Kajiwara, K.; Oda, Y.; Kasugai, A.; Kobayashi, N.; Sakamoto, K. [Japan Atomic Energy Agency, 801-1 Mukoyama, Naka, Ibaraki 311-0193 (Japan); Doane, J.; Olstad, R. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States); Henderson, M. [ITER Organization, CS90 046, 13067 St. Paul lez Durance Cedex (France)

2011-06-15T23:59:59.000Z

52

The Engineering Analysis in Support of the ITER Electron Cyclotron Heating and Current Drive Transmission Lines  

Science Journals Connector (OSTI)

Technical Paper / Sixteenth Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC-16)

D. M. S. Ronden; M. A. Henderson; B. Becket; T. Bigelow; J. Caughman; C. Darbos; F. Gandini; C. Nazare; D. Rasmussen; V. Udintsev

53

Long-Pulse Improved Central Electron Confinement in the TCV Tokamak with Electron Cyclotron Heating and Current Drive  

Science Journals Connector (OSTI)

Current profile tailoring by electron cyclotron heating (ECH) and current drive (ECCD) is used to improve central electron energy confinement in the TCV tokamak. Counter-ECCD on axis alone achieves this goal in a transient manner only. A stable scenario is obtained by a two-step sequence of off-axis ECH, which stabilizes magnetohydrodynamics modes, and on-axis counter-ECCD, which generates a flat or inverted current profile. This high-confinement regime, with central temperatures up to 9 keV (at a normalized ?N?0.6), has been sustained for the entire duration of the heating pulse, or over 200 electron energy confinement times and 5 current redistribution times.

Z. A. Pietrzyk; C. Angioni; R. Behn; S. Coda; T. P. Goodman; M. A. Henderson; F. Hofmann; O. Sauter

2001-02-19T23:59:59.000Z

54

Electron cyclotron resonance heating and EC-current drive experiments at W7-AS, status at W7-X  

Science Journals Connector (OSTI)

Electron Cyclotron Resonance Heating (ECRH) is the main heating method for both the W7-AS stellarator, which is operational, and W7-X, which is under construction. An overview on physics studies on ECRH and EC-current drive (ECCD) in an extended parameter range at W7-AS is presented. Current drive was investigated with an ECRH power of up to 1.3 MW at 140 \\{GHz\\} in a wide range of plasma density and launch angle. The experimental results are compared to predictions from quasilinear theory. Electron temperatures of up to 5.7 keV were measured at low to intermediate densities, which can only be explained by the beneficial effect of positive radial electric fields (‘electron root feature’). The results from W7-AS establish the experimental and technological basis for W7-X, which aims at demonstrating the inherent steady state capabality of stellarators at reactor relevant plasma parameters. The status of the design and construction of the ECRH system for W7-X is presented.

V Erckmann; H.P Laqua; H Maassberg; J Geiger; G Dammertz; W Kasparek; M Thumm

2001-01-01T23:59:59.000Z

55

One Machine for Heating Cooling & Domestic Hot Water: Multi-Function Heat Pumps to Enable Zero Net Energy Homes  

E-Print Network [OSTI]

advances to commercialize stand-alone electric heat-pump storage hot water heaters. These systems offer design uses multiple systems and fuels to provide thermal services, the emerging generation of heat to experience this change as air-source heat-pump water heaters deliver obvious energy savings over electric

California at Davis, University of

56

The coordinate transformation method for design of polarizers on HL-2A electron cyclotron resonance heating and current drive systems  

SciTech Connect (OSTI)

Polarizers are widely used to change the polarization of millimeter waves on the electron cyclotron resonance heating and current drive (ECRH and CD) systems. A new method based on the coordinate transformation and the Fourier expansion (the so-called C-method) has been developed for design of polarizers on the HL-2A ECRH and CD systems. This method transforms the grating problem to an eigenvalue problem, making it easy and clear to understand and solve. The comparison between the C-method, the integral method, and the low power test results is presented. It indicates that the C-method can be considered as a rigorous numerical method for the design of polarizers. Finally, two polarizers were designed based on the C-method which can be used together to achieve almost arbitrary polarization.

Xia, D. H. [State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, 430074 Wuhan (China) [State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, 430074 Wuhan (China); Southwestern Institute of Physics, 610041 Chengdu (China); Huang, M.; Zhou, J.; Rao, J. [Southwestern Institute of Physics, 610041 Chengdu (China)] [Southwestern Institute of Physics, 610041 Chengdu (China); Zhuang, G. [State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, 430074 Wuhan (China)] [State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, 430074 Wuhan (China)

2013-10-15T23:59:59.000Z

57

Design study of a new antenna system for steering microwave beam in electron cyclotron heating/current drive system  

Science Journals Connector (OSTI)

The reflector driven in the linear motion to steer the microwave beam for electron cyclotron heating/current drive system, which has considerable merits, especially for reactor environments, has been studied in design. In a typical design, a microwave beam launched from the end of a waveguide is reflected at a concave mirror following a fixed flat mirror. The injection angle can be changed by varying a point of reflection on the concave mirror because of the transition of the normal angle of the concave mirror. The point of reflection is easily controlled by the linear motion of the concave mirror. It is notable that mirror rotation is not required, and the inside of a robust driving shaft can be used to supply the coolant to the mirror. This indicates that the antenna can be designed without a rotation axis, bearings, and a flexible cooling tube close to the plasma which may require frequent maintenance or replacement in a highly radioactive environment. This study shows that the antenna driven in the linear motion has a potential to meet certain specifications, especially with regard to antenna size, steerable range of the beam angle, and beam quality for experiments in tokamaks and for fusion reactors. In the preliminary design trial for the ITER equatorial antenna, the concaved mirror of 0.3 m in length having 1 m curvature and stroke of 0.2 m enables beam angle range of 20–40° with beam radius of 0.06 m at the EC resonance.

S. Moriyama; M. Seki; T. Fujii

2007-01-01T23:59:59.000Z

58

Advanced Chemical Heat Pumps Using Liquid-Vapor Reactions  

E-Print Network [OSTI]

ically feasible systems have significant potential advantage over conventional tech nology. An electric drive reactive heat pump can use smaller heat exchangers and compressor than a vapor-compression machine, and have more flexible operating... are discussed, and performance is bounded. A discussion on liquid-vapor equilibria is included as introduction to the systems I- considered. The electric drive heat pump and TA are promising systems; the TA has potential for higher COP than absorption...

Kirol, L.

59

Current drive and heating by fusion protons in a D–3He FRC reactor  

Science Journals Connector (OSTI)

The possibility of using the 14.7?MeV protons produced in the D-3 He fusion reaction to sustain the current and heat the plasma in a field reversed configuration reactor is investigated. A Monte Carlo code that includes particle drag and pitch angle scattering is employed to follow the trajectories of the fusion born protons and calculate the resulting current and deposited power. It is found that for the parameters of the proposed ARTEMIS (Momota et al 1992 Fusion Technol. 21 2307) conceptual reactor design a significant current (40–46?MA) could result, depending on the plasma current induced by the protons, which is not calculated. The effect of changing the shape of the plasma equilibrium is also investigated.

Hugo E. Ferrari; Ricardo Farengo

2008-01-01T23:59:59.000Z

60

Ion Heating at Twice the Ion-Cyclotron Frequency in Reactor-Oriented Machines  

Science Journals Connector (OSTI)

A systematic study is made of the efficiency of first-harmonic ion-cyclotron heating in hot, dense, large plasmas. Promising heating times are derived when the imposed axial wavelength satisfies the rather restrictive high-temperature, high-density limitation kz>~?pi2Vi?ci-1c-2.

R. R. Weynants

1974-07-08T23:59:59.000Z

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61

Investigation on multi-variable decoupled temperature control system for enamelling machine with heated air circulation  

SciTech Connect (OSTI)

A lots of problems may occur frequently when controlling the temperature of the enamelling machine oven in the real industrial process, such as multi-variable coupled problem. an experimental rig with triple inputs and triple outputs was devised and a simulation modeling was established accordingly in this study,. the temperature control system based on the feedforward compensation algorithm was proposed. Experimental results have shown that the system is of high efficiency, good stability and promising application.

Li, Yang; Qin, Le; Zou, Shipeng; Long, Shijun [School of Information Engineering, Guangdong University of Technology, Guangzhou, 510006 (China)

2014-04-11T23:59:59.000Z

62

Power requirements for electron cyclotron current drive and ion cyclotron resonance heating for sawtooth control in ITER  

E-Print Network [OSTI]

13MW of electron cyclotron current drive (ECCD) power deposited inside the q = 1 surface is likely to reduce the sawtooth period in ITER baseline scenario below the level empirically predicted to trigger neo-classical tearing modes (NTMs). However, since the ECCD control scheme is solely predicated upon changing the local magnetic shear, it is prudent to plan to use a complementary scheme which directly decreases the potential energy of the kink mode in order to reduce the sawtooth period. In the event that the natural sawtooth period is longer than expected, due to enhanced alpha particle stabilisation for instance, this ancillary sawtooth control can be provided from > 10MW of ion cyclotron resonance heating (ICRH) power with a resonance just inside the q = 1 surface. Both ECCD and ICRH control schemes would benefit greatly from active feedback of the deposition with respect to the rational surface. If the q = 1 surface can be maintained closer to the magnetic axis, the efficacy of ECCD and ICRH schemes sig...

Chapman, I T; Sauter, O; Zucca, C; Asunta, O; Buttery, R J; Coda, S; Goodman, T; Igochine, V; Johnson, T; Jucker, M; La Haye, R J; Lennholm, M; Contributors, JET-EFDA

2013-01-01T23:59:59.000Z

63

Overmodulation in Current Controlled Drives  

E-Print Network [OSTI]

220 Chapter 5 Overmodulation in Current Controlled Drives 5.1 Introduction The performance of voltage feedforward controlled constant V f PWM-VSI drives is insu cient for most industrial processes performance control methods. Electric traction, el- evators, textile machines, paper and plastic machines

Hava, Ahmet

64

High-harmonic Fast Wave Heating and Current Drive Results for Deuterium H-mode Plasmas in the National Spherical Torus Experiment  

SciTech Connect (OSTI)

A critical research goal for the spherical torus (ST) program is to initiate, ramp-up, and sustain a discharge without using the central solenoid. Simulations of non-solenoidal plasma scenarios in the National Spherical Torus Experiment (NSTX) [1] predict that high-harmonic fast wave (HHFW) heating and current drive (CD) [2] can play an important roll in enabling fully non-inductive (fNI {approx} 1) ST operation. The NSTX fNI {approx} 1 strategy requires 5-6 MW of HHFW power (PRF) to be coupled into a non-inductively generated discharge [3] with a plasma current, Ip {approx} 250-350 kA, driving the plasma into an HHFW H-mode with Ip {approx} 500 kA, a level where 90 keV deuterium neutral beam injection (NBI) can heat the plasma and provide additional CD. The initial approach on NSTX has been to heat Ip {approx} 300 kA, inductively heated, deuterium plasmas with CD phased HHFW power [2], in order to drive the plasma into an H-mode with fNI {approx} 1.

G. Taylor, P.T. Bonoli, R.W. Harvey, J.C. hosea, E.F. Jaeger, B.P. LeBlanc, C.K. Phillisp, P.M. Ryan, E.J. Valeo, J.R. Wilson, J.C. Wright, and the NSTX Team

2012-07-25T23:59:59.000Z

65

Analysis of a multi-machine database on divertor heat flux  

SciTech Connect (OSTI)

A coordinated effort to measure divertor heat flux characteristics in fully attached, similarly shaped H-mode plasmas on C-Mod, DIII-D, and NSTX was carried out in 2010 in order to construct a predictive scaling relation applicable to next step devices including ITER, FNSF, and DEMO. Few published scaling laws are available and those that have been published were obtained under widely varying conditions and divertor geometries, leading to conflicting predictions for this critically important quantity. This study was designed to overcome these deficiencies. Analysis of the combined data set reveals that the primary dependence of the parallel heat flux width is robustly inverse with I-p, which all three tokamaks independently demonstrate. An improved Thomson scattering system on DIII-D has yielded very accurate scrape off layer (SOL) profile measurements from which tests of parallel transport models have been made. It is found that a flux-limited model agrees best with the data at all collisionalities, while a Spitzer resistivity model agrees at higher collisionality where it is more valid. The SOL profile measurements and divertor heat flux scaling are consistent with a heuristic drift based model as well as a critical gradient model.

Makowski, M. A. [Lawrence Livermore National Laboratory (LLNL); Elder, J. D. [University of Toronto, Toronto, ON, Canada; Gray, Travis K [ORNL; LaBombard, Brian [Massachusetts Institute of Technology (MIT); Lasnier, C. J. [Lawrence Livermore National Laboratory (LLNL); Leonard, A. W. [General Atomics; Maingi, Rajesh [ORNL; Osborne, T. H. [General Atomics; Stangeby, P. C. [University of Toronto Institute for Aerospace Studies; Terry, J. L. [MIT Plasma Science & Fusion Center, Cambridge, MA 02139 USA; Watkins, J. G. [Sandia National Laboratories (SNL)

2012-01-01T23:59:59.000Z

66

Plasma Phys. Control. Fusion 40 (1998) 21132130. Printed in the UK PII: S0741-3335(98)89611-5 Electron cyclotron heating and current drive in the TJ-II  

E-Print Network [OSTI]

-3335(98)89611-5 Electron cyclotron heating and current drive in the TJ-II stellarator V Tribaldos, J A Jim´enez, J Guasp, Spain Received 25 November 1997, in final form 1 September 1998 Abstract. Electron cyclotron resonance heating (ECRH) has become an attractive technique in today's fusion experiments not only as a heating

van Milligen, Boudewijn

67

High-Performance Control of Two Three-Phase Permanent-Magnet Synchronous Machines in an Integrated Drive for Automotive Applications  

SciTech Connect (OSTI)

The closed-loop control of an integrated dual AC drive system is presented to control two three-phase permanent-magnet motors. A five-leg inverter is employed in the drive system; three of the inverter legs are for a main traction motor, but only two are needed for a three-phase auxiliary motor by utilizing the neutral point of the traction motor. An integrated drive with reduced component count is therefore achieved by eliminating one inverter leg and its gate drivers. A modified current control scheme based on the rotor flux orientation principle is presented. Simulation and experimental results are included to verify the independent control capability of the integrated drive.

Tang, Lixin [ORNL; Su, Gui-Jia [ORNL

2008-01-01T23:59:59.000Z

68

power electronics and machines | netl.doe.gov  

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

Advanced Power Electronics and Electrical Machines Improvements in electric traction drives are essential to electric drive vehicles, and have the potential to significantly reduce...

69

Electric Drive Status and Challenges  

Broader source: Energy.gov [DOE]

Presentation given by technical manager Susan Rogers at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL.

70

High Non-inductive Fraction H-mode Discharges Generated by High-harmonic Fast Wave Heating and Current Drive in the National Spherical Torus Experiment  

SciTech Connect (OSTI)

A deuterium H-mode discharge with a plasma current of 300 kA, an axial toroidal magnetic field of 0.55 T, and a calculated non-inductive plasma current fraction of 0.7 1 has been generated in the National Spherical Torus Experiment by 1.4MW of 30MHz high-harmonic fast wave (HHFW) heating and current drive. Seventy-five percent of the non-inductive current was generated inside an internal transport barrier that formed at a normalized minor radius 0.4. Three quarters of the non-inductive current was bootstrap current, and the remaining non-inductive current was generated directly by HHFW power inside a normalized minor radius 0.2. VC 2012 American Institute of Physics.

Taylor, G. [Princeton Plasma Physics Laboratory (PPPL); Hosea, J. [Princeton Plasma Physics Laboratory (PPPL); Kessel, C. E. [Princeton Plasma Physics Laboratory (PPPL); LeBlanc, B [Princeton Plasma Physics Laboratory (PPPL); Mueller, D. [Princeton Plasma Physics Laboratory (PPPL); Phillips, C. K. [Princeton Plasma Physics Laboratory (PPPL); Valeo, E. J. [Princeton Plasma Physics Laboratory (PPPL); Wilson, J. R. [Princeton Plasma Physics Laboratory (PPPL); Ryan, Philip Michael [ORNL; Bonoli, P. [Massachusetts Institute of Technology (MIT); Harvey, R. W. [CompX, Del Mar, CA

2012-01-01T23:59:59.000Z

71

Steam turbine: Alternative emergency drive for the secure removal of residual heat from the core of light water reactors in ultimate emergency situation  

SciTech Connect (OSTI)

In 2011 the nuclear power generation has suffered an extreme probation. That could be the meaning of what happened in Fukushima Nuclear Power Plants. In those plants, an earthquake of 8.9 on the Richter scale was recorded. The quake intensity was above the trip point of shutting down the plants. Since heat still continued to be generated, the procedure to cooling the reactor was started. One hour after the earthquake, a tsunami rocked the Fukushima shore, degrading all cooling system of plants. Since the earthquake time, the plant had lost external electricity, impacting the pumping working, drive by electric engine. When operable, the BWR plants responded the management of steam. However, the lack of electricity had degraded the plant maneuvers. In this paper we have presented a scheme to use the steam as an alternative drive to maintain operable the cooling system of nuclear power plant. This scheme adds more reliability and robustness to the cooling systems. Additionally, we purposed a solution to the cooling in case of lacking water for the condenser system. In our approach, steam driven turbines substitute electric engines in the ultimate emergency cooling system. (authors)

Souza Dos Santos, R. [Instituto de Engenharia Nuclear CNEN/IEN, Cidade Universitaria, Rua Helio de Almeida, 75 - Ilha do Fundiao, 21945-970 Rio de Janeiro (Brazil); Instituto Nacional de Ciencia e Tecnologia de Reatores Nucleares Inovadores / CNPq (Brazil)

2012-07-01T23:59:59.000Z

72

Two-Step Approach to Steady-State Current Drive in Tokamaks by Use of Electron Cyclotron Heating  

Science Journals Connector (OSTI)

An approach to sustaining steady-state toroidal currents in tokamaks by use of two separate electron cyclotron heating sources is described. One source creates a minority group of collisionless, barely trapped electrons. The second source uses frequency modulation to detrap some of these with a large degree of toroidal asymmetry. The power dissipated in sustaining the steady-state toroidal current can be less than 1 W/A for typical tokamak conditions.

R. A. Dandl and G. E. Guest

1983-03-28T23:59:59.000Z

73

Device and method for relativistic electron beam heating of a high-density plasma to drive fast liners  

DOE Patents [OSTI]

A device and method for relativistic electron beam heating of a high-density plasma in a small localized region. A relativistic electron beam generator or accelerator produces a high-voltage electron beam which propagates along a vacuum drift tube and is modulated to initiate electron bunching within the beam. The beam is then directed through a low-density gas chamber which provides isolation between the vacuum modulator and the relativistic electron beam target. The relativistic beam is then applied to a high-density target plasma which typically comprises DT, DD, hydrogen boron or similar thermonuclear gas at a density of 10.sup.17 to 10.sup.20 electrons per cubic centimeter. The target gas is ionized prior to application of the electron beam by means of a laser or other preionization source to form a plasma. Utilizing a relativistic electron beam with an individual particle energy exceeding 3 MeV, classical scattering by relativistic electrons passing through isolation foils is negligible. As a result, relativistic streaming instabilities are initiated within the high-density target plasma causing the relativistic electron beam to efficiently deposit its energy and momentum into a small localized region of the high-density plasma target. Fast liners disposed in the high-density target plasma are explosively or ablatively driven to implosion by a heated annular plasma surrounding the fast liner which is generated by an annular relativistic electron beam. An azimuthal magnetic field produced by axial current flow in the annular plasma, causes the energy in the heated annular plasma to converge on the fast liner.

Thode, Lester E. (Los Alamos, NM)

1981-01-01T23:59:59.000Z

74

Diamond machine tool face lapping machine  

DOE Patents [OSTI]

An apparatus for shaping, sharpening and polishing diamond-tipped single-point machine tools. The isolation of a rotating grinding wheel from its driving apparatus using an air bearing and causing the tool to be shaped, polished or sharpened to be moved across the surface of the grinding wheel so that it does not remain at one radius for more than a single rotation of the grinding wheel has been found to readily result in machine tools of a quality which can only be obtained by the most tedious and costly processing procedures, and previously unattainable by simple lapping techniques.

Yetter, H.H.

1985-05-06T23:59:59.000Z

75

A new absorption chiller to establish combined cold, heat, and power generation utilizing low-temperature heat  

SciTech Connect (OSTI)

Presently available absorption machines for air conditioning are driven with heat of a minimum of 80 C (176 F). A combination of the standard single-effect and a double-lift process has been identified as a new cycle that can use driving heat down to return temperatures of about 55 C (131 F) and permits temperature glides in generation of more than 30 K (54 F). Thus a larger cooling capacity can be produced from the same heat source compared to a single-effect chiller run with the same heat carrier supply temperature and mass flow. According to the estimated heat exchanger area, competitive machine costs for this new chiller can be expected. This single-effect/double-lift absorption chiller can be operated with waste heat from industrial processes, as well as with low-temperature heat (e.g., heat from solar collectors) as driving heat for air conditioning. The large temperature glide and the low return temperature especially fit the operating conditions in district heating networks during the summer. The cycle will be presented, followed by a discussion of suitable operating conditions.

Schweigler, C.J.; Riesch, P.; Demmel, S.; Alefeld, G. [ZAE Bayern, Garching/Muenchen (Germany)

1996-11-01T23:59:59.000Z

76

rf Plasma Heating in a Mirror Machine at Frequencies near the Ion Cyclotron Frequency and its Harmonics  

Science Journals Connector (OSTI)

By applying 75 kW of pulsed rf power to a decaying hydrogen plasma following turbulent heating, we have maintained a plasma density of 1012 to 5 × 1012 cm-3 for the 600-? sec duration of the rf pulse. Neutral energy analyzer measurements of ion temperature indicate Ti?100 eV, while diamagnetic loop measurements indicate 100 eVrf signals near the harmonics of the ion cyclotron frequency.

D. G. Swanson; R. W. Clark; P. Korn; S. Robertson; C. B. Wharton

1972-04-17T23:59:59.000Z

77

All Electric Injection Molding Machines: How Much Energy Can You Save?  

E-Print Network [OSTI]

There are three basic types of injection molding machines (IMMs) currently on the market: hydraulic, all-electric, and hybrid. They each have a different way of driving machine processes. Hydraulic IMMs use hydraulic pumps, all-electric machines use...

Kanungo, A.; Swan, E.

2008-01-01T23:59:59.000Z

78

Energy Conservation Within the Paper Machine Room  

E-Print Network [OSTI]

their startling waste of energy, the corrective measures taken to reduce this waste of energy, the potential for waste recovery and equipment available for waste heat recovery. Areas under study include the press section, paper machine dryer section, and machine...

Walker, P. J.; Erskine, K. J.

1979-01-01T23:59:59.000Z

79

High Power Density Integrated Traction Machine Drive  

Broader source: Energy.gov [DOE]

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

80

Machines that understand music  

E-Print Network [OSTI]

Powered Machine Learning . . . . . . . . . . . . . . . .Powered Machine Learning . . . . . . . . . . . . . . . . .passive). Integrating active machine learning with Herd It’s

Barrington, Luke

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heating machine drive" 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

MACHINE CONTEST MACHINE VOLUME WORKSHEET  

E-Print Network [OSTI]

MACHINE CONTEST® MACHINE VOLUME WORKSHEET Note: Each square is 1' x 1' (0.3 m x 0.3 m) (Official the footprint of your machine NOTE: If any part of the machine falls within a square, you must count the entire: _______________ (choose one: ft2 or m2 ) STEP 3: Measure the height of your machine. NOTE: The maximum height is 8' (2.4 m

Yener, Aylin

82

Optimal Design of Electrical Machines: Mathematical Programming ...  

E-Print Network [OSTI]

global heating up of the winding is rather roughly modeled by Ech (function of current electric ...... Electric Machines and Power Systems, pages. 71–92, 1992.

2012-06-06T23:59:59.000Z

83

Quantum Machines  

E-Print Network [OSTI]

We discuss quantum information processing machines. We start with single purpose machines that either redistribute quantum information or identify quantum states. We then move on to machines that can perform a number of functions, with the function they perform being determined by a program, which is itself a quantum state. Examples of both deterministic and probabilistic programmable machines are given, and we conclude with a discussion of the utility of quantum programs.

Mark Hillery; Vladimir Buzek

2009-03-24T23:59:59.000Z

84

Stochastic thermodynamics, fluctuation theorems, and molecular machines  

E-Print Network [OSTI]

Stochastic thermodynamics as reviewed here systematically provides a framework for extending the notions of classical thermodynamics like work, heat and entropy production to the level of individual trajectories of well-defined non-equilibrium ensembles. It applies whenever a non-equilibrium process is still coupled to one (or several) heat bath(s) of constant temperature. Paradigmatic systems are single colloidal particles in time-dependent laser traps, polymers in external flow, enzymes and molecular motors in single molecule assays, small biochemical networks and thermoelectric devices involving single electron transport. For such systems, a first-law like energy balance can be identified along fluctuating trajectories. Various integral and detailed fluctuation theorems, which are derived here in a unifying approach from one master theorem, constrain the probability distributions for work, heat and entropy production depending on the nature of the system and the choice of non-equilibrium conditions. For non-equilibrium steady states, particularly strong results hold like a generalized fluctuation-dissipation theorem involving entropy production. Ramifications and applications of these concepts include optimal driving between specified states in finite time, the role of measurement-based feedback processes and the relation between dissipation and irreversibility. Efficiency and, in particular, efficiency at maximum power, can be discussed systematically beyond the linear response regime for two classes of molecular machines, isothermal ones like molecular motors, and heat engines like thermoelectric devices, using a common framework based on a cycle decomposition of entropy production.

Udo Seifert

2012-05-18T23:59:59.000Z

85

Energy dissipation in bio molecular machines  

E-Print Network [OSTI]

Energy dissipation in bio molecular machines Thesis for the degree of Philosophiae Doctor Trondheim applied to molecular machines and energy trans- duction and dissipation in these. The main result to include heat effects. This framework is general and can be applied to other molecular machines as well

Kjelstrup, Signe

86

Biologically inspired mutual synchronization of manufacturing machines  

E-Print Network [OSTI]

Biologically inspired mutual synchronization of manufacturing machines Erjen Lefeber,a,1 , Herman machine is developed. This control system is based on a synchronization mechanism of enzymes replacing of a single turnover cycle. In manufacturing, batch machines serve several jobs simultaneously, e.g., heat

Armbruster, Dieter

87

ECE 432/532 Dynamics of Electromechanical Energy Conversion Catalog Description: Generalized machine theory. Techniques for dynamic analysis of  

E-Print Network [OSTI]

drives Transfer functions and basic control theory Electric machine and drives simulation Measurable. Learning Resources: Mohan, Advanced Electric Drives, MNPERE, 2001 #12;Students with Disabilities-axis equivalent and develop the electrical and mechanical performance equations for dynamic operation (ABET

88

: Helmholtz machine estimation .  

E-Print Network [OSTI]

: Helmholtz machine density estimation . . : . . . (supervised learning) , (active learning) (query learning) [1, 3]. . (unsupervised learning), . , [5]. . Helmholtz machine , . Helmholtz machine : Helmholtz machine [2] . Helmholtz machine (generative network) (recognition network) . , , . Helmholtz machine (self

89

Measured Savings of DC to AC Drive Retrofit in Plastic Extrusion  

E-Print Network [OSTI]

This paper presents the potential electrical energy efficiency improvements for utilizing alternating current (AC) motors controlled by variable frequency drives (VFD) in place of direct current (DC) motors to drive plastic extrusion machines. A...

Sfeir, R. A.

2008-01-01T23:59:59.000Z

90

Switched reluctance motor drive circuit evaluation criteria for vehicle efficiency responsiveness.  

E-Print Network [OSTI]

??This thesis intends to examine the principles of operation for switched reluctance machines (SRM) and examine the power electronic drive circuits that control them, in… (more)

Cunningham, John David

2011-01-01T23:59:59.000Z

91

Electric machine  

DOE Patents [OSTI]

An interior permanent magnet electric machine is disclosed. The interior permanent magnet electric machine comprises a rotor comprising a plurality of radially placed magnets each having a proximal end and a distal end, wherein each magnet comprises a plurality of magnetic segments and at least one magnetic segment towards the distal end comprises a high resistivity magnetic material.

El-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Reddy, Patel Bhageerath (Madison, WI)

2012-07-17T23:59:59.000Z

92

EV Everywhere Workshop: Traction Drive Systems Breakout Group Report  

Broader source: Energy.gov [DOE]

Presentation given at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL.

93

EV Everywhere Grand Challenge Introduction for Electric Drive Workshop  

Broader source: Energy.gov [DOE]

Presentation given by EERE Assistant Secretary David Danielson at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL.

94

EV Everywhere Electric Drive Workshop: Preliminary Target-Setting Framework  

Broader source: Energy.gov [DOE]

Presentation given by Vehicle Technologies Office analyst Jake Ward at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL.

95

Engineering AnteaterDrive  

E-Print Network [OSTI]

Rockw ell & M DEA Engineering Tower AnteaterDrive AnteaterDrive East Peltason Drive EastPeltasonDrive East Peltason Drive Anteater Parking Structure EngineeringServiceRoad Engineering Laboratory Facility Engineering Gateway Engineering Hall AIRB Calit2 Engineering Lecture Hall Campus Building Engineering Building

Mease, Kenneth D.

96

Simulating Turing Machines on Maurer Machines  

E-Print Network [OSTI]

Simulating Turing Machines on Maurer Machines J.A. Bergstra1,2 and C.A. Middelburg3 1 Programming MB Eindhoven, the Netherlands keesm@win.tue.nl Abstract. Maurer machines are much closer to real computers than Turing machines. Computer instructions play a prominent part in Mau- rer machines. We show

van der Zwaag, Mark

97

Precision Timed Machines  

E-Print Network [OSTI]

1.4 Precision Timed Machines . . . . .Precision Timed Machine 2.1precision timed (PRET) machine. pages 264–265, June 2007. [

Liu, Isaac Suyu

2012-01-01T23:59:59.000Z

98

Modular axial-flux permanent-magnet motor for ship propulsion drives  

SciTech Connect (OSTI)

Original features such as compactness and lightness make slotless axial-flux permanent-magnet machines (AFPMs) eligible for application in large power motor drives devoted to the direct drive of ship propellers. This paper discusses characteristics of AFPMs designed for application in marine propulsion, and machine performances such as efficiency, weight and torque density are evaluated for a comparison with those of conventional synchronous machines. A newly-conceived modular arrangement of the machine stator winding is proposed and experimental results taken from a small-size machine prototype are finally shown.

Caricchi, F.; Crescimbini, F.; Honorati, O.

1999-09-01T23:59:59.000Z

99

A high-speed hysteresis motor spindle for machining applications  

E-Print Network [OSTI]

An analysis of suitable drive technologies for use in a new high-speed machining spindle was performed to determine critical research areas. The focus is on a hysteresis motor topology using a solid, inherently-balanced ...

Bayless, Jacob D. (Jacob Daniel)

2014-01-01T23:59:59.000Z

100

Substrate denaturation and translocation by a proteolytic machine  

E-Print Network [OSTI]

Many AAA+ molecular machines generate power and drive cellular processes by harnessing energy from cycles of ATP hydrolysis. ClpX is a relatively simple AAA+ ATPase that powers regulated protein degradation by binding ...

Kenniston, Jon Anders

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heating machine drive" 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

Dynamics of an oscillating Stirling heat pump  

Science Journals Connector (OSTI)

Abstract In this paper, a promising heat pump based on Stirling technology is examined. Based on the volume variation produced by the oscillating displacement of two pistons, the advantages of this particular system lie in the elimination of a transmission mechanism, as the driving machines are directly coupled to the working pistons, and in the use of environmentally friendly working gases. The system is analysed by coupling the dynamics to an isothermal model of the Stirling cycle. A methodology is proposed to preliminarily size this type of heat pump based on simulations performed on a mathematical model built in MATLAB. The stability of operation is analysed by considering possible changes in working conditions. Actions are proposed to minimize the effect of these changes on the performance of the system.

I. Barreno; S.C. Costa; M. Cordon; I. Urrutibeascoa; X. Gomez; M. Mateos

2014-01-01T23:59:59.000Z

102

Heat collector  

DOE Patents [OSTI]

A heat collector and method suitable for efficiently and cheaply collecting solar and other thermal energy are provided. The collector employs a heat pipe in a gravity-assist mode and is not evacuated. The collector has many advantages, some of which include ease of assembly, reduced structural stresses on the heat pipe enclosure, and a low total materials cost requirement. Natural convective forces drive the collector, which after startup operates entirely passively due in part to differences in molecular weights of gaseous components within the collector.

Merrigan, Michael A. (Santa Cruz, NM)

1984-01-01T23:59:59.000Z

103

Heat collector  

DOE Patents [OSTI]

A heat collector and method suitable for efficiently and cheaply collecting solar and other thermal energy are provided. The collector employs a heat pipe in a gravity-assist mode and is not evacuated. The collector has many advantages, some of which include ease of assembly, reduced structural stresses on the heat pipe enclosure, and a low total materials cost requirement. Natural convective forces drive the collector, which after startup operates entirely passively due in part to differences in molecular weights of gaseous components within the collector.

Merrigan, M.A.

1981-06-29T23:59:59.000Z

104

A Multiphase Traction/Fast-Battery-Charger Drive for Electric or Plug-in Hybrid Vehicles  

E-Print Network [OSTI]

A Multiphase Traction/Fast-Battery-Charger Drive for Electric or Plug-in Hybrid Vehicles Solutions on an original electric drive [1]-[3] dedicated to the vehicle traction and configurable as a battery charger concerning the electrical machine control. This paper deals with the control of this drive [1], focusing

Paris-Sud XI, Université de

105

A Generalized Deletion Machine  

E-Print Network [OSTI]

In this work we prescribe a more generalized quantum-deleting machine (input state dependent). The fidelity of deletion is dependent on some machine parameters such that on alteration of machine parameters we get back to standard deleting machines. We also carried out a various comparative study of various kinds of quantum deleting machines. We also plotted graphs, making a comparative study of fidelity of deletion of the deletion machines, obtained as particular cases on changing the machine parameters of our machine.

Indranil Chakrabarty; Satyabrata Adhikari

2005-11-22T23:59:59.000Z

106

State-Machine Replication  

E-Print Network [OSTI]

State-Machine Replication #12;The Problem Clients Server #12;The Problem Clients Server #12;The (state machine) #12;The Solution 1. Make server deterministic (state machine) State machine #12;The Solution 1. Make server deterministic (state machine) 2. Replicate server State machines #12;The Solution 1

Venkataramani, Arun

107

Vehicle Technologies Office: Materials for Hybrid and Electric Drive  

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

for Hybrid and for Hybrid and Electric Drive Systems to someone by E-mail Share Vehicle Technologies Office: Materials for Hybrid and Electric Drive Systems on Facebook Tweet about Vehicle Technologies Office: Materials for Hybrid and Electric Drive Systems on Twitter Bookmark Vehicle Technologies Office: Materials for Hybrid and Electric Drive Systems on Google Bookmark Vehicle Technologies Office: Materials for Hybrid and Electric Drive Systems on Delicious Rank Vehicle Technologies Office: Materials for Hybrid and Electric Drive Systems on Digg Find More places to share Vehicle Technologies Office: Materials for Hybrid and Electric Drive Systems on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Advanced Power Electronics & Electrical Machines

108

Induction machine  

DOE Patents [OSTI]

A polyphase rotary induction machine for use as a motor or generator utilizing a single rotor assembly having two series connected sets of rotor windings, a first stator winding disposed around the first rotor winding and means for controlling the current induced in one set of the rotor windings compared to the current induced in the other set of the rotor windings. The rotor windings may be wound rotor windings or squirrel cage windings.

Owen, Whitney H. (Ogden, UT)

1980-01-01T23:59:59.000Z

109

Holiday Food Drive  

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

Food Drive Food Drive Holiday Food Drive During the recent holiday food drive, employees donated enough food to provide about 23,604 holiday meals for Northern New Mexico families. More than 432 frozen turkeys were donated this year by employees and other donors during 'Bring a Turkey to Work Day,' an annual Lab event that takes places Thanksgiving week. September 16, 2013 LANL employees organize food for the Holiday Food Drive. Contacts Giving Drives Ed Vigil Community Programs Office (505) 665-9205 Email Giving Drives Enrique Trujillo Community Programs Office (505) 665-6384 Email Helping feed Northern New Mexico families Community partners The Food Depot (Santa Fe) Del Norte Credit Union Smith's Food and Drug Giving Holiday Food Drive Holiday Gift Drive LANL Laces Los Alamos Employees' Scholarship Fund

110

Novel Flux Coupling Machine without Permanent Magnets - U Machine...  

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

Novel Flux Coupling Machine without Permanent Magnets - U Machine Novel Flux Coupling Machine without Permanent Magnets - U Machine 2009 DOE Hydrogen Program and Vehicle...

111

US DRIVE Driving Research and Innovation for Vehicle Efficiency...  

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

Driving Research and Innovation for Vehicle Efficiency and Energy Sustainability Partnership Plan US DRIVE Driving Research and Innovation for Vehicle Efficiency and Energy...

112

Direct fired absorption machine flue gas recuperator  

DOE Patents [OSTI]

A recuperator which recovers heat from a gas, generally the combustion gas of a direct-fired generator of an absorption machine. The recuperator includes a housing with liquid flowing therethrough, the liquid being in direct contact with the combustion gas for increasing the effectiveness of the heat transfer between the gas and the liquid.

Reimann, Robert C. (Lafayette, NY); Root, Richard A. (Spokane, WA)

1985-01-01T23:59:59.000Z

113

A PRODUCTIVITY AND COST COMPARISON OF TWO NON-COMMERCIAL FOREST FUEL REDUCTION MACHINES  

E-Print Network [OSTI]

A PRODUCTIVITY AND COST COMPARISON OF TWO NON-COMMERCIAL FOREST FUEL REDUCTION MACHINES M. Chad-commercial equipment designs in a fuel reduction treatment. The machines were: 1) a swing-boom excavator (SBE) equipped with a rotary disc mulching head, and 2) a drive-to- tree flexible tracked machine (FTM) with a rotating drum

Bolding, M. Chad

114

Course info Machine Learning  

E-Print Network [OSTI]

Course info Machine Learning Real life problems Lecture 1: Machine Learning Problem Qinfeng (Javen) Shi 28 July 2014 Intro. to Stats. Machine Learning COMP SCI 4401/7401 Qinfeng (Javen) Shi Lecture 1: Machine Learning Problem #12;Course info Machine Learning Real life problems Table of Contents I 1 Course

Shi, Qinfeng "Javen"

115

Planet of the Machines  

E-Print Network [OSTI]

2011). Rage against the machine: How the digital revolutionMore jobs predicted for machines, not people. The New Yorke - m o re - j o b s - fo r- machines-not-people.html? _r=1

Landers, Tara

2012-01-01T23:59:59.000Z

116

The Ion Cyclotron, Lower Hybrid and Alfven Wave Heating Methods  

Science Journals Connector (OSTI)

Heating and Current Drive / Proceedings of the Tenth Carolus Magnus Summer School on Plasma and Fusion Energy Physics

R. Koch

117

The Ion Cyclotron, Lower Hybrid and Alfvén Wave Heating Methods  

Science Journals Connector (OSTI)

Heating and Current Drive / Proceedings of the Ninth Carolus Magnus Summer School on Plasma and Fusion Energy Physics

R. Koch

118

Efficiency of autonomous soft nano-machines at maximum power  

E-Print Network [OSTI]

We consider nano-sized artificial or biological machines working in steady state enforced by imposing non-equilibrium concentrations of solutes or by applying external forces, torques or electric fields. For unicyclic and strongly coupled multicyclic machines, efficiency at maximum power is not bounded by the linear response value 1/2. For strong driving, it can even approach the thermodynamic limit 1. Quite generally, such machines fall in three different classes characterized, respectively, as "strong and efficient", "strong and inefficient", and "balanced". For weakly coupled multicyclic machines, efficiency at maximum power has lost any universality even in the linear response regime.

Udo Seifert

2010-11-11T23:59:59.000Z

119

Holiday Gift Drive  

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

Holiday Gift Drive Holiday Gift Drive Holiday Gift Drive Every year, Laboratory employees help fulfill the holiday wishes of children and seniors in our communities. In 2012, our employees helped more than 1,030 Northern New Mexico children, senior citizens and families have a brighter holiday season. September 16, 2013 Every holiday season, employees of Los Alamos National Laboratory donate and distribute gifts to families in need throughout Northern New Mexico. Contacts Giving Drives Ed Vigil Community Programs Office (505) 665-9205 Email Giving Drives Enrique Trujillo Community Programs Office (505) 665-6384 Email Helping New Mexico families feel the holiday spirit The 2013 campaign runs from November 21-December 18. 2012 Holiday Gift Drive partners Boys and Girls Club Del Norte (Abiquiu Site)

120

Heat Integrate Heat Engines in Process Plants  

E-Print Network [OSTI]

and refrigeration systems. In many instances these real heat engines may appear as a complex process consisting of flash vessels, heat exchangers, compressors, furnaces, etc. See Figure 18a, which shows a simplified diagram of a "steam Rankine cycle." How... and rejection profiles of the real machine. For example, the heat acceptance and re jection profiles for the steam Rankine cycle shown in Figure 18a have been drawn on T,H coordinates in Figure 18b. Thus providing we know the heat acceptance and rejection...

Hindmarsh, E.; Boland, D.; Townsend, D. W.

Note: This page contains sample records for the topic "heating machine drive" 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

Machines registres Yves Lafont  

E-Print Network [OSTI]

Machines à registres Yves Lafont Université d'Aix-Marseille Institut de Mathématiques de Luminy) Pascal Turing Von Neumann #12;Quelle opération calcule cette machine ? Exemple 1 2 registres : (+ 1 Quelle opération calcule cette machine ? #12;Quelle propriété teste cette machine ? Exemple 3 1 seul

Lafont, Yves

122

Piezoelectric drive circuit  

DOE Patents [OSTI]

A piezoelectric motor drive circuit is provided which utilizes the piezoelectric elements as oscillators and a Meacham half-bridge approach to develop feedback from the motor ground circuit to produce a signal to drive amplifiers to power the motor. The circuit automatically compensates for shifts in harmonic frequency of the piezoelectric elements due to pressure and temperature changes. 7 figs.

Treu, C.A. Jr.

1999-08-31T23:59:59.000Z

123

Piezoelectric drive circuit  

DOE Patents [OSTI]

A piezoelectric motor drive circuit is provided which utilizes the piezoelectric elements as oscillators and a Meacham half-bridge approach to develop feedback from the motor ground circuit to produce a signal to drive amplifiers to power the motor. The circuit automatically compensates for shifts in harmonic frequency of the piezoelectric elements due to pressure and temperature changes.

Treu, Jr., Charles A. (Raymore, MO)

1999-08-31T23:59:59.000Z

124

Memory Hard Drive Peripherals  

E-Print Network [OSTI]

1! CSI3131 Topics CPU Memory Hard Drive Peripherals Computing Systems OS Overview StructureDeadlocks M em ory M anagem ent Basic Memory Managermtn Virtual Memory Storage and I/O File Systems Hard Drive Management Swap I/O Management 2 Module 7: Memory Management Reading: Chapter 8 § To provide a detailed

Stojmenovic, Ivan

125

Powering of a Solar Heated Swimming Pool  

Science Journals Connector (OSTI)

To drive the pumps of a 2.100 m2 solar thermal system that heats an outdoors swimming pool. This need is hourly in phase with...

Marc Van Gysel

1984-01-01T23:59:59.000Z

126

Traction Drive Systems Breakout  

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

Traction Drive Systems Breakout Traction Drive Systems Breakout John M. Miller, PhD, PE, F.IEEE, F.SAE Oak Ridge National Laboratory Facilitator July 24, 2012 EV Everywhere Grand Challenge Vehicle Technologies Program - Advanced Power Electronics and Electric Motors eere.energy.gov EV Everywhere Traction Drive System * DOE goals for Electric Traction Drive System (TDS) innovations must be disruptive innovation focused to meet the CY2022 price target ($20,000 $25,000) for a mid-sized 5 passenger sedan having 5 year simple payback. Enhanced Efficiency Reduced Cost Traction Drive System EETT Roadmap: "Therefore, research is needed to develop technologies that are less expensive and, at the same time, smaller, lighter, more efficient, and equally reliable as conventional automotive technologies. "

127

Can Machines BeCan Machines Be Polite?Polite?  

E-Print Network [OSTI]

Can Machines BeCan Machines Be Polite?Polite? Michael A. CovingtonMichael A. Covington Artificial Intelligence CenterArtificial Intelligence Center #12;Can machines be polite?Can machines be polite? Machines have beenMachines have been annoying peopleannoying people ever since humanever since human--machine

Covington, Michael A.

128

Health Monitoring of Drive Connected Three-Phase Induction Motors ----- From Wired Towards Wireless Sensor Networks  

E-Print Network [OSTI]

three-phase induction motor drives a DC generator through ainduction machines. Temperature Temperature is widely monitored in electrical drives and generators.Induction Motor Resistors pack Pulley V-belt 2b Terminal box 1a Terminal box 1b DC Generator

Xue, Xin

2009-01-01T23:59:59.000Z

129

Space Vector PWM Control Synthesis for a H-Bridge Drive in Electric Vehicles  

E-Print Network [OSTI]

Space Vector PWM Control Synthesis for a H-Bridge Drive in Electric Vehicles A. Kolli1 , Student Magnet Synchronous Machine in Electric Vehicle application. First, a short survey of existing power control methods are compared with three innovative ones using EV-drive specifications in the normal

Paris-Sud XI, Université de

130

Hybrid Quantum Cloning Machine  

E-Print Network [OSTI]

In this work, we introduce a special kind of quantum cloning machine called Hybrid quantum cloning machine. The introduced Hybrid quantum cloning machine or transformation is nothing but a combination of pre-existing quantum cloning transformations. In this sense it creates its own identity in the field of quantum cloners. Hybrid quantum cloning machine can be of two types: (i) State dependent and (ii) State independent or Universal. We study here the above two types of Hybrid quantum cloning machines. Later we will show that the state dependent hybrid quantum-cloning machine can be applied on only four input states. We will also find in this paper another asymmetric universal quantum cloning machine constructed from the combination of optimal universal B-H quantum cloning machine and universal anti-cloning machine. The fidelities of the two outputs are different and their values lie in the neighborhood of ${5/6} $

Satyabrata Adhikari; A. K. Pati; Indranil Chakrabarty; B. S. Choudhury

2007-05-04T23:59:59.000Z

131

Base drive and overlap protection circuit  

DOE Patents [OSTI]

An inverter (34) which provides power to an A. C. machine (28) is controlled by a circuit (36) employing PWM control strategy whereby A. C. power is supplied to the machine at a preselectable frequency and preselectable voltage. This is accomplished by the technique of waveform notching in which the shapes of the notches are varied to determine the average energy content of the overall waveform. Through this arrangement, the operational efficiency of the A. C. machine is optimized. The control circuit includes a microcomputer and memory element which receive various parametric inputs and calculate optimized machine control data signals therefrom. The control data is asynchronously loaded into the inverter through an intermediate buffer (38). A base drive and overlap protection circuit is included to insure that both transistors of a complimentary pair are not conducting at the same time. In its preferred embodiment, the present invention is incorporated within an electric vehicle (10) employing a 144 VDC battery pack (32) and a three-phase induction motor (18).

Gritter, David J. (Southfield, MI)

1983-01-01T23:59:59.000Z

132

Waste Heat Recovery from Refrigeration  

E-Print Network [OSTI]

heat recovery from refrigeration machines is a concept which has great potential for implementation in many businesses. If a parallel requirement for refrigeration and hot water exists, the installation of a system to provide hot water as a by...

Jackson, H. Z.

1982-01-01T23:59:59.000Z

133

Vehicle Technologies Office: Electrical Machines  

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

Electrical Machines to Electrical Machines to someone by E-mail Share Vehicle Technologies Office: Electrical Machines on Facebook Tweet about Vehicle Technologies Office: Electrical Machines on Twitter Bookmark Vehicle Technologies Office: Electrical Machines on Google Bookmark Vehicle Technologies Office: Electrical Machines on Delicious Rank Vehicle Technologies Office: Electrical Machines on Digg Find More places to share Vehicle Technologies Office: Electrical Machines 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 Electrical Machines Emphasis in the electrical machines activity is on advanced motor

134

Variable Frequency Drives  

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

How BPA Supports VFDs Rebates are available from your utility for Variable Frequency Drives on pumps 20hp or greater and storage fans.. Energy savings from VFDs vary and can...

135

Process Integration of Industrial Heat Pumps  

E-Print Network [OSTI]

, COP Carnot T W---i Figure 6. Grand composite curve with electric drive system The COP for a prime heat system assumes the exhaust heat from the driver is used in the process. The COP is then the ratio of total heat delivered (Q4 + QZ.... Nomenclature is as given in Figures 6-8. The electric drive heat pump is the most widely understood system. It has the advantage of simplic ity and requires little disruption of the process. However, an electric drive may upset the utility power/heat...

Priebe, S. J.; Chappell, R. N.

136

MM-wave cyclotron auto-resonance maser for plasma heating  

SciTech Connect (OSTI)

Heating and Current Drive systems are of outstanding relevance in fusion plasmas, magnetically confined in tokamak devices, as they provide the tools to reach, sustain and control burning conditions. Heating systems based on the electron cyclotron resonance (ECRH) have been extensively exploited on past and present machines DEMO, and the future reactor will require high frequencies. Therefore, high power (?1MW) RF sources with output frequency in the 200 - 300 GHz range would be necessary. A promising source is the so called Cyclotron Auto-Resonance Maser (CARM). Preliminary results of the conceptual design of a CARM device for plasma heating, carried out at ENEA-Frascati will be presented together with the planned R and D development.

Ceccuzzi, S.; Ravera, G. L.; Tuccillo, A. A. [Associazione Euratom-ENEA sulla Fusione, C.R. Frascati, Via Enrico Fermi 45, 00044, Frascati, Roma (Italy); Dattoli, G.; Di Palma, E.; Doria, A.; Gallerano, G. P.; Giovenale, E.; Spassovsky, I.; Surrenti, V. [ENEA UTAPRAD, C.R. Frascati, Via Enrico Fermi 45, 00044, Frascati, Roma (Italy); Mirizzi, F. [Consorzio CREATE, Via Claudio 21, 80125, Napoli (Italy)

2014-02-12T23:59:59.000Z

137

CNC MACHINE TOOL  

Science Journals Connector (OSTI)

machines are controlled by locally programmable, dedicated micro- or mini-computers. Computer programs resident in the memory of the computer guide the machine tool to cut or form metal to conform to the de...

2000-01-01T23:59:59.000Z

138

Wisconsin Electric Machines & Power Electronics Consortium 30 Years of Collaboration and Innovation 19812011  

E-Print Network [OSTI]

Education Research Technology WEMPEC Wisconsin Electric Machines & Power Electronics Consortium 30 electronics motor drive world. We are extremely proud of them and what they have accom- plished both at UW

Thiffeault, Jean-Luc

139

Harmonic control of multiple-stator induction machines for voltage regulation  

E-Print Network [OSTI]

Small, one to a few horsepower, three-phase induction machines with three sets of electrically-isolated, magnetically-coupled stator winding circuits are described. A voltage inverter is developed and used to drive one set ...

Holloway, Jack Wade, 1980-

2004-01-01T23:59:59.000Z

140

Automobile Driving and Aggressive Behavior  

E-Print Network [OSTI]

The accident prone automobile driver. American Journal ofAutomobile Driving And Aggressive Behavior Raymond W. Novacofor its content or use. Automobile Driving and Aggressive

Novaco, Raymond W.

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heating machine drive" 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

Traction Drive Systems Breakout Group  

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

overlook profit motive in value chain * 4 - Today's HEV systems drive EV traction drive systems because of manufacturing base Barriers Interfering with Reaching the Targets * 1 -...

142

Millikelvin Lab Machine Shop  

E-Print Network [OSTI]

Millikelvin Lab OP105­112 Machine Shop OP132 Resistive Magnet Shop CICC Winding Area Transformers This building is home to the Millikelvin lab, the control room, the resistive magnet and machine shops, the CICC@magnet.fsu.edu (850) 644-4378 (850) 644-0534 2 MACHINE SHOP OP132 Vaughan Williams (A114*) williams

McQuade, D. Tyler

143

Talking Vending Machines  

E-Print Network [OSTI]

're in the central Tokyo Station and you're thirsty so you go to the, you know, vending machine to buy a drink. Only this is not your average vending machine. Uh uh. This vending machine has opinions on what beverage you want. Sensors built into large touch panels...

Hacker, Randi

2011-02-02T23:59:59.000Z

144

1996 international conference on power electronics, drives and energy systems for industrial growth: Proceedings. Volume 1  

SciTech Connect (OSTI)

This book contains Volume 1 of the proceedings of the IEEE International Conference on Power Electronics, Drives and Energy Systems for Industrial Growth held January, 1996, in New Delhi. The topics of the papers include resonant and soft switching converters, induction motor drives, solar power generation, control aspects of power generation, PWM and DC/DC converters, field oriented control of AC machines, wind power generation, analysis of electrical machines, topology and control of power electronic converters, switched reluctance and permanent magnet motor drives, active filters and VAR compensation schemes, analysis and design of induction generators/motors, simulation of power electronics converters and drive, brushless and special electrical machines, UPS and battery energy storage systems.

Murthy, S.S.; Roy, S. [eds.] [Indian Inst. of Tech., New Delhi (India); Divan, D. [ed.] [Univ. of Wisconsin, Madison, WI (United States); Doradla, S.R. [ed.] [Indian Inst. of Tech., Kanpur (India); Murthy, B.V. [ed.] [General Motors, Detroit, MI (United States)

1995-12-31T23:59:59.000Z

145

What is Machine Learning? About the Course Example Machine Learning  

E-Print Network [OSTI]

What is Machine Learning? About the Course Example Machine Learning DD2431 ¨Orjan Ekeberg Oct­Dec, 2008 What is Machine Learning? About the Course Example 1 What is Machine Learning? Definition A Hypothetical Project What is Machine Learning? About the Course Example 1 What is Machine Learning? Definition

Kjellström, Hedvig

146

What is Machine Learning? About the Course Example Machine Learning  

E-Print Network [OSTI]

What is Machine Learning? About the Course Example Machine Learning DD2431 ¨Orjan Ekeberg Oct­Dec, 2007 What is Machine Learning? About the Course Example 1 What is Machine Learning? Definition A Hypothetical Project What is Machine Learning? About the Course Example 1 What is Machine Learning? Definition

Kjellström, Hedvig

147

SOME UNSOLVED CHALLENGES IN RADIO-FREQUENCY HEATING AND  

E-Print Network [OSTI]

SOME UNSOLVED CHALLENGES IN RADIO-FREQUENCY HEATING AND CURRENT DRIVE N. J. FISCH* Princeton Plasma in the electronic version. I. INTRODUCTION There are many methods by which radio-frequency (rf) waves drive, 2013 doi:10.13182/FST13-682 Several unsolved challenges in radio-frequency heating and current drive

148

Hypervelocity cutting machine and method  

DOE Patents [OSTI]

A method and machine 14 are provided for cutting a workpiece 12 such as concrete. A gun barrel 16 is provided for repetitively loading projectiles 22 therein and is supplied with a pressurized propellant from a storage tank 28. A thermal storage tank 32,32A is disposed between the propellant storage tank 28 and the gun barrel 16 for repetitively receiving and heating propellant charges which are released in the gun barrel 16 for repetitively firing projectiles 22 therefrom toward the workpiece 12. In a preferred embodiment, hypervelocity of the projectiles 22 is obtained for cutting the concrete workpiece 12 by fracturing thereof.

Powell, James R. (Shoreham, NY); Reich, Morris (Queens, NY)

1996-11-12T23:59:59.000Z

149

Hypervelocity cutting machine and method  

DOE Patents [OSTI]

A method and machine are provided for cutting a workpiece such as concrete. A gun barrel is provided for repetitively loading projectiles therein and is supplied with a pressurized propellant from a storage tank. A thermal storage tank is disposed between the propellant storage tank and the gun barrel for repetitively receiving and heating propellant charges which are released in the gun barrel for repetitively firing projectiles therefrom toward the workpiece. In a preferred embodiment, hypervelocity of the projectiles is obtained for cutting the concrete workpiece by fracturing thereof. 10 figs.

Powell, J.R.; Reich, M.

1996-11-12T23:59:59.000Z

150

Method and apparatus for characterizing and enhancing the functional performance of machine tools  

DOE Patents [OSTI]

Disclosed are various systems and methods for assessing and improving the capability of a machine tool. The disclosure applies to machine tools having at least one slide configured to move along a motion axis. Various patterns of dynamic excitation commands are employed to drive the one or more slides, typically involving repetitive short distance displacements. A quantification of a measurable merit of machine tool response to the one or more patterns of dynamic excitation commands is typically derived for the machine tool. Examples of measurable merits of machine tool performance include workpiece surface finish, and the ability to generate chips of the desired length.

Barkman, William E; Babelay, Jr., Edwin F; Smith, Kevin Scott; Assaid, Thomas S; McFarland, Justin T; Tursky, David A; Woody, Bethany; Adams, David

2013-04-30T23:59:59.000Z

151

Fast wave current drive in DEMO  

SciTech Connect (OSTI)

The ability to non-inductively drive a large fraction of the toroidal plasma current in magnetically confined plasmas is an essential requirement for steady state fusion reactors such as DEMO. Besides neutral beam injection (NBI), electron-cyclotron resonance heating (ECRH) and lower hybrid wave heating (LH), ion-cyclotron resonance heating (ICRH) is a promising candidate to drive current, in particular at the high temperatures expected in fusion plasmas. In this paper, the current drive (CD) efficiencies calculated with coupled ICRF wave / CD numerical codes for the DEMO-1 design case (R{sub 0}=9m, B{sub 0}=6.8T, a{sub p}=2.25m) [1] are presented. It will be shown that although promising CD efficiencies can be obtained in the usual ICRF frequency domain (20-100MHz) by shifting the dominant ion-cyclotron absorption layers to the high-field side, operation at higher frequencies (100-300MHz) has a stronger CD potential, provided the parasitic RF power absorption of the alpha particles can be minimized.

Lerche, E.; Van Eestera, D.; Messiaen, A. [Association EURATOM-Belgian State, LPP-ERM/KMS, TEC partner, Brussels (Belgium); Franke, T. [Max-Planck-Institut für Plasmaphysik, EURATOM-Assoziation, Garching (Germany); Collaboration: EFDA-PPPT Contributors

2014-02-12T23:59:59.000Z

152

Electric-Drive Vehicle engineering  

E-Print Network [OSTI]

Electric-Drive Vehicle engineering COLLEGE of ENGINEERING Electric-drive engineers for 80 years t Home to nation's first electric-drive vehicle engineering program and alternative-credit EDGE Engineering Entrepreneur Certificate Program is a great addition to an electric-drive vehicle

Berdichevsky, Victor

153

HEATS: Thermal Energy Storage  

SciTech Connect (OSTI)

HEATS Project: The 15 projects that make up ARPA-E’s HEATS program, short for “High Energy Advanced Thermal Storage,” seek to develop revolutionary, cost-effective ways to store thermal energy. HEATS focuses on 3 specific areas: 1) developing high-temperature solar thermal energy storage capable of cost-effectively delivering electricity around the clock and thermal energy storage for nuclear power plants capable of cost-effectively meeting peak demand, 2) creating synthetic fuel efficiently from sunlight by converting sunlight into heat, and 3) using thermal energy storage to improve the driving range of electric vehicles (EVs) and also enable thermal management of internal combustion engine vehicles.

None

2012-01-01T23:59:59.000Z

154

Technical NoteFEASIBILITY STUDIES OF ALPHA-PARTICLE CHANNELING IN MIRROR MACHINES  

E-Print Network [OSTI]

Technical NoteFEASIBILITY STUDIES OF ALPHA-PARTICLE CHANNELING IN MIRROR MACHINES A. I. ZHMOGINOV such as mirror machines can benefit this concept by efficiently redirecting a-particle energy to fuel ion heating designs and for proof-of-principle experiments. KEYWORDS: alpha channeling, mirror machines, ray tracing

155

Drive5 | Open Energy Information  

Open Energy Info (EERE)

Drive5 Drive5 Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Drive5 Agency/Company /Organization: Drive5 Sector: Energy Focus Area: Vehicles Resource Type: Software/modeling tools User Interface: Website, Mobile Device Website: www.drive5.us Web Application Link: www.drive5.us Cost: Free OpenEI Keyword(s): Challenge Generated Drive5 Screenshot References: Drive5[1] Challenge.gov[2] Challenge.gov Submission Page[3] Measure your fuel economy real time with five metrics to save on fuel costs. Overview Drive1: Fuel Economy Drive5 gives you real time fuel economy feedback for any car 1984 and newer by simply utilizing the sensors embedded in your phone or tablet. It uses a statistical algorithm which leverages the fueleconomy.gov's open dataset along with data from thousands of automobile trips. No connections to the

156

Simulation of Photovoltaic Array-driven Electric Machines with Power Electronic Interfaces  

Science Journals Connector (OSTI)

Power electronic interfaces between photovoltaic (PV) arrays and electric machines are necessary in order to match the drive characteristics with the characteristics of the array for efficient utilization of the resource. This paper proposes a model ... Keywords: MATLAB/SIMULINK modeling, electric machines, photovoltaic array, power electronics, simulation

S. Arul Daniel; N. Ammasai Gounden

2010-11-01T23:59:59.000Z

157

Variable Frequency Pump Drives  

E-Print Network [OSTI]

-frequency electric motor drive. What is happenin9 with variable frequency driven pun,ps is a classical illustration that evolution in technical products takes place not only because of changes in the processes served by these products, or because of innovations...-pole 3550 rpm squirrel caqe induction motor became available in the early 1930s that high pressure pumps operating at that speed could be buil t. And now, in the 1980s, the development of the solid-state, variable frequency electric motor drive...

Karassik, I. J.; Petraccaro, L. L.; McGuire, J. T.

158

Methods, systems and apparatus for synchronous current regulation of a five-phase machine  

DOE Patents [OSTI]

Methods, systems and apparatus are provided for controlling operation of and regulating current provided to a five-phase machine when one or more phases has experienced a fault or has failed. In one implementation, the disclosed embodiments can be used to synchronously regulate current in a vector controlled motor drive system that includes a five-phase AC machine, a five-phase inverter module coupled to the five-phase AC machine, and a synchronous current regulator.

Gallegos-Lopez, Gabriel; Perisic, Milun

2012-10-09T23:59:59.000Z

159

Heat driven heat pump using paired ammoniated salts  

SciTech Connect (OSTI)

A cycle for a heat driven heat pump using two salts CaCl/sup 2/.8NH/sup 3/, and ZnCl/sup 2/.4NH3 which may reversibly react with ammonia with the addition or evolution of heat. These salts were chosen so that both ammoniation processes occur at the same temperature so that the heat evolved may be used for comfort heating. The heat to drive the system need only be slightly hotter than 122 C. The low temperature source need only be slightly warmer than 0 C.

Dunlap, R.M.

1980-08-29T23:59:59.000Z

160

Machine tool locator  

DOE Patents [OSTI]

Machine tools can be accurately measured and positioned on manufacturing machines within very small tolerances by use of an autocollimator on a 3-axis mount on a manufacturing machine and positioned so as to focus on a reference tooling ball or a machine tool, a digital camera connected to the viewing end of the autocollimator, and a marker and measure generator for receiving digital images from the camera, then displaying or measuring distances between the projection reticle and the reference reticle on the monitoring screen, and relating the distances to the actual position of the autocollimator relative to the reference tooling ball. The images and measurements are used to set the position of the machine tool and to measure the size and shape of the machine tool tip, and examine cutting edge wear. patent

Hanlon, John A. (Los Alamos, NM); Gill, Timothy J. (Stanley, NM)

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heating machine drive" 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

Quantum thermal machines with single nonequilibrium environments  

E-Print Network [OSTI]

We propose a scheme for a quantum thermal machine made by atoms interacting with a single non-equilibrium electromagnetic field. The field is produced by a simple configuration of macroscopic objects held at thermal equilibrium at different temperatures. We show that these machines can deliver all thermodynamic tasks (cooling, heating and population inversion), and this by establishing quantum coherence with the body on which they act. Remarkably, this system allows to reach efficiencies at maximum power very close to the Carnot limit, much more than in existing models. Our findings offer a new paradigm for efficient quantum energy flux management, and can be relevant for both experimental and technological purposes.

Bruno Leggio; Bruno Bellomo; Mauro Antezza

2015-01-08T23:59:59.000Z

162

20140430_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 April to 30 April 2014.

Thibedeau, Joe

2014-05-05T23:59:59.000Z

163

Green Machine Florida Canyon Hourly Data 20130731  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 7/1/13 to 7/31/13.

Vanderhoff, Alex

2013-08-30T23:59:59.000Z

164

20130416_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 4/16/13.

Vanderhoff, Alex

2013-04-24T23:59:59.000Z

165

Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 6/1/13 to 6/30/13

Vanderhoff, Alex

2013-07-15T23:59:59.000Z

166

Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 6/1/13 to 6/30/13

Vanderhoff, Alex

167

20130416_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 4/16/13.

Vanderhoff, Alex

168

20140430_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 April to 30 April 2014.

Thibedeau, Joe

169

Green Machine Florida Canyon Hourly Data 20130731  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 7/1/13 to 7/31/13.

Vanderhoff, Alex

170

What Can Turing Machines Do? How powerful are Turing machines?  

E-Print Network [OSTI]

1 What Can Turing Machines Do? How powerful are Turing machines? Turing machines can accept any regular or context- free language. Turing machines can perform basic arithmetic computations. Sequencing can be implemented on Turing ma- chines. Subroutine calls can be implemented on Turing machines

Bylander, Tom

171

Quantum Learning Machine  

E-Print Network [OSTI]

We propose a novel notion of a quantum learning machine for automatically controlling quantum coherence and for developing quantum algorithms. A quantum learning machine can be trained to learn a certain task with no a priori knowledge on its algorithm. As an example, it is demonstrated that the quantum learning machine learns Deutsch's task and finds itself a quantum algorithm, that is different from but equivalent to the original one.

Jeongho Bang; James Lim; M. S. Kim; Jinhyoung Lee

2008-03-20T23:59:59.000Z

172

Gas Powered Air Conditioning Absorption vs. Engine-Drive  

E-Print Network [OSTI]

the cooling effect of water evaporation to cool a facilities water cooling system while the gas engine drive chiller uses a standard "freon" compressor driven by a gas engine' to provide its cooling. In the absorption chiller, a heat generator boils... for the water in the evaporator section. A pump then moves the dilute solution back to the generator to continue the process. GED chillers are no different than their electric counterparts except an engine drives the compressor instead of an electric motor...

Phillips, J. N.

1996-01-01T23:59:59.000Z

173

Lecture outline Support vector machines  

E-Print Network [OSTI]

Lecture outline · Support vector machines #12;Support Vector Machines · Find a linear hyperplane (decision boundary) that will separate the data #12;Support Vector Machines · One Possible Solution #12;Support Vector Machines · Another possible solution #12;Support Vector Machines · Other possible solutions

Terzi, Evimaria

174

Lecture outline Support vector machines  

E-Print Network [OSTI]

Lecture outline · Support vector machines #12;Support Vector Machines · Find a linear hyperplane (decision boundary) that will separate the data #12;Support Vector Machines · One Possible Solution B1 #12;Support Vector Machines · Another possible solution B2 #12;Support Vector Machines · Other possible

Terzi, Evimaria

175

Structural Risk Minimization Kernels Support Vector Machines Support Vector Machines  

E-Print Network [OSTI]

Dimensional Spaces Many acceptable solutions bad generalization Structural Risk Minimization Kernels SupportStructural Risk Minimization Kernels Support Vector Machines Support Vector Machines Kernel Methods Structural Risk Minimization Kernels Support Vector Machines 1 Structural Risk Minimization High Dimensional

Kjellström, Hedvig

176

Structural Risk Minimization Kernels Support Vector Machines Support Vector Machines  

E-Print Network [OSTI]

Dimensional Spaces Many acceptable solutions #12;Structural Risk Minimization Kernels Support Vector Machines High Dimensional Spaces Many acceptable solutions bad generalization #12;Structural Risk MinimizationStructural Risk Minimization Kernels Support Vector Machines Support Vector Machines Kernel Methods

Kjellström, Hedvig

177

Energy-efficient water heating  

SciTech Connect (OSTI)

This fact sheet describes how to reduce the amount of hot water used in faucets and showers, automatic dishwashers, and washing machines; how to increase water-heating system efficiency by lowering the water heater thermostat, installing a timer and heat traps, and insulating hot water pipes and the storage tank; and how to use off-peak power to heat water. A resource list for further information is included.

NONE

1995-01-01T23:59:59.000Z

178

Drive alignment pays maintenance dividends  

SciTech Connect (OSTI)

Proper alignment of the motor and gear drive on conveying and processing equipment will result in longer bearing and coupling life, along with lower maintenance costs. Selecting an alignment free drive package instead of a traditional foot mounted drive and motor is a major advancement toward these goals. 4 photos.

Fedder, R. [Rexnord Industries, Milwaukee, WI (United States)

2008-12-15T23:59:59.000Z

179

On parallel machine scheduling 1  

E-Print Network [OSTI]

On parallel machine scheduling 1 machines with setup times. The setup has to be performed by a single server. The objective is to minimize even for the case of two identical parallel machines. This paper presents a pseudopolynomial

Magdeburg, Universität

180

CNC machines(CNC Maschinen)  

Science Journals Connector (OSTI)

The machining of metal components had been done in the past by using conventional machine tools like lathes, milling machines, etc. and the accuracy of the work done was dependent on the skill and experience of t...

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heating machine drive" 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

Adjustable speed drive for residential applications  

SciTech Connect (OSTI)

This paper describes a demonstration of an adjustable speed drive suitable for use in residential applications such as compressors and fans in heat pumps, air conditioners, and refrigerators. The adjustable speed drive uses only a four-diode rectifier and a six-transistor six-diode inverter and does not require a source-frequency filter inductor or capacitor. Motor speed is adjusted with source-frequency phase control eliminating the switching loss and electromagnetic interference caused by the more commonly used high-frequency pulse-width modulation. Low source-current distortion and high power factor are obtained at a full-load operating point which is found using a parametric analysis.

Jungreis, A.M.; Kelley, A.W. [North Carolina State Univ., Raleigh, NC (United States). Dept. of Electrical and Computer Engineering] [North Carolina State Univ., Raleigh, NC (United States). Dept. of Electrical and Computer Engineering

1995-11-01T23:59:59.000Z

182

Electric Drive Transportation Association Conference | Department...  

Energy Savers [EERE]

Association Conference Electric Drive Transportation Association Conference Addthis Test Drive 1 of 5 Test Drive Deputy Assistant Secretary for Transportation Reuben Sarkar...

183

Universal Developer Platform for MachinePlatform for Machine  

E-Print Network [OSTI]

1 Universal Developer Platform for MachinePlatform for Machine Control Applications Hansjoerg will need some things: · Senses · Means June 24-26, 2008 ETH Zurich #12;2 And for Machine Control? June 24 ETH Zurich Conclusion: big effort for things that have little to do with Machine Control Multi

184

Theory of Molecular Machines. I. Channel Capacity of Molecular Machines  

E-Print Network [OSTI]

Theory of Molecular Machines. I. Channel Capacity of Molecular Machines running title: Channel Capacity of Molecular Machines Thomas D. Schneider version = 5.76 of ccmm.tex 2004 Feb 3 Version 5.67 was submitted 1990 December 5 Schneider, T. D. (1991). Theory of molecular machines. I. Channel capacity

Schneider, Thomas D.

185

Automatic ball bar for a coordinate measuring machine  

DOE Patents [OSTI]

An automatic ball bar for a coordinate measuring machine determines the accuracy of a coordinate measuring machine having at least one servo drive. The apparatus comprises a first and second gauge ball connected by a telescoping rigid member. The rigid member includes a switch such that inward radial movement of the second gauge ball relative to the first gauge ball causes activation of the switch. The first gauge ball is secured in a first magnetic socket assembly in order to maintain the first gauge ball at a fixed location with respect to the coordinate measuring machine. A second magnetic socket assembly secures the second gauge ball to the arm or probe holder of the coordinate measuring machine. The second gauge ball is then directed by the coordinate measuring machine to move radially inward from a point just beyond the length of the ball bar until the switch is activated. Upon switch activation, the position of the coordinate measuring machine is determined and compared to known ball bar length such that the accuracy of the coordinate measuring machine can be determined. 5 figs.

Jostlein, H.

1997-07-15T23:59:59.000Z

186

Automatic ball bar for a coordinate measuring machine  

DOE Patents [OSTI]

An automatic ball bar for a coordinate measuring machine determines the accuracy of a coordinate measuring machine having at least one servo drive. The apparatus comprises a first and second gauge ball connected by a telescoping rigid member. The rigid member includes a switch such that inward radial movement of the second gauge ball relative to the first gauge ball causes activation of the switch. The first gauge ball is secured in a first magnetic socket assembly in order to maintain the first gauge ball at a fixed location with respect to the coordinate measuring machine. A second magnetic socket assembly secures the second gauge ball to the arm or probe holder of the coordinate measuring machine. The second gauge ball is then directed by the coordinate measuring machine to move radially inward from a point just beyond the length of the ball bar until the switch is activated. Upon switch activation, the position of the coordinate measuring machine is determined and compared to known ball bar length such that the accuracy of the coordinate measuring machine can be determined.

Jostlein, Hans (Naperville, IL)

1997-01-01T23:59:59.000Z

187

Fundamentals of Machine Vision  

Science Journals Connector (OSTI)

Machine vision systems have two primary elements: the camera, which serves as the eye of the system, and a computer video image analyzer. Lighting is also an important consideration. The camera, which may be a...

Richard K. Miller CMfgE

1989-01-01T23:59:59.000Z

188

Machine For Grinding Fog  

E-Print Network [OSTI]

Machine For Grinding Fog, an exhibition of stop motion animated films, revolves around three primary concerns: relationships, psychological or subjective reality, and relativity. Rooted within concerns of faith, personal ethics, and a re...

Ward, Nicholas Adam

2010-04-30T23:59:59.000Z

189

Exotic in Leptonic Machines  

E-Print Network [OSTI]

Selected topics of exotics in leptonic machines are presented, including recent discovery of abnormal structures around the ppbar threshold and new information of the XYZ (charmonium-like) states.

Kai Zhu

2014-08-07T23:59:59.000Z

190

Electric Drive Vehicle Demonstration and Vehicle Infrastructure...  

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

Electric Drive Vehicle Demonstration and Vehicle Infrastructure Evaluation Electric Drive Vehicle Demonstration and Vehicle Infrastructure Evaluation 2010 DOE Vehicle Technologies...

191

Next Generation Environmentally Friendly Driving Feedback Systems...  

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

Next Generation Environmentally Friendly Driving Feedback Systems Research and Development Next Generation Environmentally Friendly Driving Feedback Systems Research and...

192

Human-machine interactions  

SciTech Connect (OSTI)

Digital technology utilizing a cognitive model based on human naturalistic decision-making processes, including pattern recognition and episodic memory, can reduce the dependency of human-machine interactions on the abilities of a human user and can enable a machine to more closely emulate human-like responses. Such a cognitive model can enable digital technology to use cognitive capacities fundamental to human-like communication and cooperation to interact with humans.

Forsythe, J. Chris (Sandia Park, NM); Xavier, Patrick G. (Albuquerque, NM); Abbott, Robert G. (Albuquerque, NM); Brannon, Nathan G. (Albuquerque, NM); Bernard, Michael L. (Tijeras, NM); Speed, Ann E. (Albuquerque, NM)

2009-04-28T23:59:59.000Z

193

Sealing intersecting vane machines  

DOE Patents [OSTI]

The invention provides a toroidal intersecting vane machine incorporating intersecting rotors to form primary and secondary chambers whose porting configurations minimize friction and maximize efficiency. Specifically, it is an object of the invention to provide a toroidal intersecting vane machine that greatly reduces the frictional losses through intersecting surfaces without the need for external gearing by modifying the width of one or both tracks at the point of intermeshing. The inventions described herein relate to these improvements.

Martin, Jedd N. (Providence, RI); Chomyszak, Stephen M. (Attleboro, MA)

2007-06-05T23:59:59.000Z

194

MACHINE MONITORING USING PROBABILITY THRESHOLDS  

E-Print Network [OSTI]

MACHINE MONITORING USING PROBABILITY THRESHOLDS AND SYSTEM OPERATING CHARACTERISTICS Stephen M a discrete-part production machine, with the objective of effectively determining when to shut the machine analysis: a) There is an underlying time interval that characterizes the operation of the machine, most

Pollock, Stephen

195

Harvesting Machine Census 1999 & 2001  

E-Print Network [OSTI]

1 Harvesting Machine Census 1999 & 2001 231 Corstorphine Road Edinburgh EH12 7AT www.forestry.gov.uk FCTN001 SUMMARY This Technical Note contains information on the 1999 and 2001 harvesting machine machines, converted forwarders, etc., account for the remaining machines. In the 2001 census, 65

196

Intrinsically irreversible heat engine  

DOE Patents [OSTI]

A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. The second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat.

Wheatley, J.C.; Swift, G.W.; Migliori, A.

1984-01-01T23:59:59.000Z

197

Residential Multi-Function Gas Heat Pump: Efficient Engine-Driven Heat Pump for the Residential Sector- Fact Sheet, 2013  

Broader source: Energy.gov [DOE]

Fact sheet overview of a natural gas heat pump system for the residential sector that will incorporate an internal combustion engine that drives a vapor-compression heat pump

198

Non-traditional machining techniques  

SciTech Connect (OSTI)

During the course of machining targets for various experiments it sometimes becomes necessary to adapt fixtures or machines, which are designed for one function, to another function. When adapting a machine or fixture is not adequate, it may be necessary to acquire a machine specifically designed to produce the component required. In addition to the above scenarios, the features of a component may dictate that multi-step machining processes are necessary to produce the component. This paper discusses the machining of four components where adaptation, specialized machine design, or multi-step processes were necessary to produce the components.

Day, Robert D [Los Alamos National Laboratory; Fierro, Frank [Los Alamos National Laboratory; Garcia, Felix P [Los Alamos National Laboratory; Hatch, Douglass J [Los Alamos National Laboratory; Randolph, Randall B [Los Alamos National Laboratory; Reardon, Patrick T [Los Alamos National Laboratory; Rivera, Gerald [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

199

Proceedings of the 2008 International Conference on Electrical Machines Paper ID 1436 Comparative Analysis of Estimation Techniques  

E-Print Network [OSTI]

is a prevailing design of electric drive for EVs. Drives Efficiency is crucial to saving energy and offering moreProceedings of the 2008 International Conference on Electrical Machines Paper ID 1436 Comparative Analysis of Estimation Techniques of SFOC Induction Motor for Electric Vehicles A. Haddoun1,2 , M

Paris-Sud XI, Université de

200

Heat Stress - HPMC Occupational Health Services  

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

Awareness Cold and Flu Prevention Hand Washing Healthy Sleep Heat Stress Radon Signs of a Heart Attack Signs of a Stroke Distracted Driving Coping with Stress & Change Skin Cancer...

Note: This page contains sample records for the topic "heating machine drive" 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

Evolution of the mirror machine  

SciTech Connect (OSTI)

The history of the magnetic-mirror approach to a fusion reactor is primarily the history of our understanding and control of several crucial physics issues, coupled with progress in the technology of heating and confining a reacting plasma. The basic requirement of an MHD-stable plasma equilibrium was achieved following the early introduction of minimum-B multipolar magnetic fields. In refined form, the same magnetic-well principle carries over to our present experiments and to reactor designs. The higher frequency microinstabilities, arising from the non-Maxwellian particle distributions inherent in mirror machines, have gradually come under control as theoretical prescriptions for distribution functions have been applied in the experiments. Even with stability, the classical plasma leakage through the mirrors posed a serious question for reactor viability until the principle of electrostatic axial stoppering was applied in the tandem mirror configuration. Experiments to test this principle successfully demonstrated the substantial improvement in confinement predicted. Concurrent with advances in mirror plasma physics, development of both high-power neutral beam injectors and high-speed vacuum pumping techniques has played a crucial role in ongoing experiments. Together with superconducting magnets, cryogenic pumping, and high-power radiofrequency heating, these technologies have evolved to a level that extrapolates readily to meet the requirements of a tandem mirror fusion reactor.

Damm, C. C.

1983-08-18T23:59:59.000Z

202

Operation and performance of a 350 kW (100 RT) single-effect/double-lift absorption chiller in a district heating network  

SciTech Connect (OSTI)

The efficiency of combined heat, power, and cold production in total energy systems could be improved significantly if absorption chillers were available that could be driven with limited mass flows of low-temperature hot water. In the case of district heat-driven air conditioning, for example, currently available standard absorption chillers are often not applied because they cannot provide the low hot water return temperature and the specific cooling capacity per unit hot water mass flow that are required by many district heating networks. Above all, a drastic increase in the size of the machine (total heat exchanger area) due to low driving temperature differences if of concern in low-temperature applications. A new type of multistage lithium bromide/water absorption chiller has been developed for the summertime operating conditions of district heating networks. It provides large cooling of the district heating water (some 30 K) and large cooling capacity per unit hot water mass flow. Two pilot plants of this novel absorption chiller were designed within the framework of a joint project sponsored by the German Federal Ministry of Education, Science, Research and Technology (BMBF), a consortium of 15 district heating utilities, and two manufacturers. The plants have been operated since summer 1996 in the district heating networks of Berlin and Duesseldorf. This paper describes the concept, installation, and control strategy of the two pilot plants, and it surveys the performance and operating experience of the plants under varying practical conditions.

Schweigler, C.J.; Preissner, M.; Demmel, S.; Hellmann, H.M.; Ziegler, F.F. [ZAE Bayern, Garching/Munich (Germany)

1998-10-01T23:59:59.000Z

203

Attempts at Ion Cyclotron Heating In a Toroidal Octupole  

E-Print Network [OSTI]

heating. A three phase system has been developed to drive rf currents into the three supports on each hoop systems is that the electrostatic drive produces electric fields by creating potential gradients, whileAttempts at Ion Cyclotron Heating In a Toroidal Octupole by J. C. Sprott Presented at the Los

Sprott, Julien Clinton

204

Air heating system  

DOE Patents [OSTI]

A self-starting, fuel-fired, air heating system including a vapor generator, a turbine, and a condenser connected in a closed circuit such that the vapor output from the vapor generator is conducted to the turbine and then to the condenser where it is condensed for return to the vapor generator. The turbine drives an air blower which passes air over the condenser for cooling the condenser. Also, a condensate pump is driven by the turbine. The disclosure is particularly concerned with the provision of heat exchanger and circuitry for cooling the condensed fluid output from the pump prior to its return to the vapor generator.

Primeau, John J. (19800 Seminole Rd., Euclid, OH 44117)

1983-03-01T23:59:59.000Z

205

BCDA Machine Status Link  

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

Machine Status Link Machine Status Link Version 1.33 (December 2005) David M. Kline. The Machine Status Link (MSL) is responsible for distributing the digitized beam current, injection status, P0 clock, and other statuses over a single fiber to several locations around the Storage Ring. The MRD100 is a VME-based module that is part of the MSL and was specifically designed for the APS. It receives and interprets information from the XMS100 module by means of copper or fiber. Signals from the XMS100 module are sent at a P0 rate (3.667 microseconds). It sends two registers every cycle and all in about 12 cycles. Refer to the ASD website for additional information regarding the MSL. The focus of this page is to provide information of how to configure the MRD100 for a beamline IOC and to discuss the sample IOC

206

Micro-machined resonator  

DOE Patents [OSTI]

A micro-machined resonator, typically quartz, with upper and lower micro-machinable support members, or covers, having etched wells which may be lined with conductive electrode material, between the support members is a quartz resonator having an energy trapping quartz mesa capacitively coupled to the electrode through a diaphragm; the quartz resonator is supported by either micro-machined cantilever springs or by thin layers extending over the surfaces of the support. If the diaphragm is rigid, clock applications are available, and if the diaphragm is resilient, then transducer applications can be achieved. Either the thin support layers or the conductive electrode material can be integral with the diaphragm. In any event, the covers are bonded to form a hermetic seal and the interior volume may be filled with a gas or may be evacuated. In addition, one or both of the covers may include oscillator and interface circuitry for the resonator.

Godshall, N.A.; Koehler, D.R.; Liang, A.Y.; Smith, B.K.

1993-03-30T23:59:59.000Z

207

Micro-machined resonator  

DOE Patents [OSTI]

A micro-machined resonator, typically quartz, with upper and lower micro-machinable support members, or covers, having etched wells which may be lined with conductive electrode material, between the support members is a quartz resonator having an energy trapping quartz mesa capacitively coupled to the electrode through a diaphragm; the quartz resonator is supported by either micro-machined cantilever springs or by thin layers extending over the surfaces of the support. If the diaphragm is rigid, clock applications are available, and if the diaphragm is resilient, then transducer applications can be achieved. Either the thin support layers or the conductive electrode material can be integral with the diaphragm. In any event, the covers are bonded to form a hermetic seal and the interior volume may be filled with a gas or may be evacuated. In addition, one or both of the covers may include oscillator and interface circuitry for the resonator.

Godshall, Ned A. (Albuquerque, NM); Koehler, Dale R. (Albuquerque, NM); Liang, Alan Y. (Albuquerque, NM); Smith, Bradley K. (Albuquerque, NM)

1993-01-01T23:59:59.000Z

208

Chapter Seven - Variable speed drives  

Science Journals Connector (OSTI)

Publisher Summary The electromechanical controllers are a kind of variable speed drives (VSDs) that are obsolete but are still in use because when a motor and a drive is combined, they become a power drive system (PDS). There are two ways of varying the speed of an induction motor, either by varying the motor slip or by varying the supply frequency. The preferred practice for electrical speed variation is to change the supply frequency with a variable frequency drive (VFD). Many other designs also have been developed. However, except the specialized applications, few are still in operation. A number of motor and drive manufacturers are now producing the integrated motor/VFD units. These units consist of a motor and a specially designed VFD, produced as a single package, with the VFD unit mounted variously on the top, side, or end of the motor.

Europump; Hydraulic Institute

2005-01-01T23:59:59.000Z

209

Precision Robotic Assembly Machine  

SciTech Connect (OSTI)

The world's largest laser system is the National Ignition Facility (NIF), located at Lawrence Livermore National Laboratory. NIF's 192 laser beams are amplified to extremely high energy, and then focused onto a tiny target about the size of a BB, containing frozen hydrogen gas. The target must be perfectly machined to incredibly demanding specifications. The Laboratory's scientists and engineers have developed a device called the "Precision Robotic Assembly Machine" for this purpose. Its unique design won a prestigious R&D-100 award from R&D Magazine.

2009-08-14T23:59:59.000Z

210

Automated fiber pigtailing machine  

DOE Patents [OSTI]

The Automated Fiber Pigtailing Machine (AFPM) aligns and attaches optical fibers to optoelectronic (OE) devices such as laser diodes, photodiodes, and waveguide devices without operator intervention. The so-called pigtailing process is completed with sub-micron accuracies in less than 3 minutes. The AFPM operates unattended for one hour, is modular in design and is compatible with a mass production manufacturing environment. This machine can be used to build components which are used in military aircraft navigation systems, computer systems, communications systems and in the construction of diagnostics and experimental systems. 26 figs.

Strand, O.T.; Lowry, M.E.

1999-01-05T23:59:59.000Z

211

State machine replication for wide area networks  

E-Print Network [OSTI]

state machine . . . . . . . . . . . . . . . . . . 2.4 FLP5.3.3 P: A simple state machine . . . . . . 5.3.4performance metrics of state machine R compared to consensus

Mao, Yanhua

2010-01-01T23:59:59.000Z

212

Fingerprinting Communication and Computation on HPC Machines  

E-Print Network [OSTI]

the Closed World: On Using Machine Learn- ing for Networkand Computation on HPC Machines Sean Peisert Computationalcode running on HPC machines using elements of communication

Peisert, Sean

2010-01-01T23:59:59.000Z

213

Supernova Recognition using Support Vector Machines  

E-Print Network [OSTI]

tion Using Support Vector Machines and Neural Networks.using Support Vector Machines Raquel A. Romano Cecilia R.nding supernovae do not employ machine learning techniques.

Romano, Raquel A.; Aragon, Cecilia R.; Ding, Chris

2006-01-01T23:59:59.000Z

214

Resource Letter PBM-1: Physics of biomolecular machines  

Science Journals Connector (OSTI)

All living creatures are made of cells. The cell is the structural and functional unit of life. This Resource Letter serves as a guide to the literature on nano-machines which drive not only intracellular movements but also motility of the cell. These machines are usually proteins or macromolecular assemblies that require appropriate fuel for their operations. Although traditionally these machines were subjects of investigation in biology and biochemistry increasing use of the concepts and techniques of physics in recent years have contributed to the quantitative understanding of the fundamental principles underlying their operational mechanisms. The possibility of exploiting these principles for the design and control of artificial nanomachines has opened up a new frontier in the bottom-up approach to nanotechnology.

Debashish Chowdhury

2009-01-01T23:59:59.000Z

215

Strong drive compression of a gas-cooled positron plasma  

SciTech Connect (OSTI)

The use of rotating electric fields to control plasmas has found numerous applications in the manipulation and storage of antimatter. When used in strong magnetic fields plasma heating caused by the applied field is mitigated by cyclotron cooling, leading to an efficient broadband mode of compression known as the strong drive regime. We have found that it is possible to access the strong drive regime in a low field trap where cyclotron cooling is negligible and a gas is used for cooling, and we have been able to compress positron plasmas to more than 10% of the Brillouin density limit.

Cassidy, D. B.; Mills, A. P. Jr. [Department of Physics and Astronomy, University of California, Riverside, California 92521-0413 (United States); Greaves, R. G. [First Point Scientific, Inc., 5330 Derry Avenue, Suite J, Agoura Hills, California 91301 (United States); Meligne, V. E. [Department of Physics and Astronomy, University of California, Riverside, California 92521-0413 (United States); First Point Scientific, Inc., 5330 Derry Avenue, Suite J, Agoura Hills, California 91301 (United States)

2010-03-08T23:59:59.000Z

216

Efficiency and scaling of current drive and refuelling by spheromak injection into a tokamak  

Science Journals Connector (OSTI)

The first measurements of current drive (refluxing) and refuelling by spheromak injection into a tokamak are discussed in detail. The current drive mechanism is attributed to the process of helicity injection, and refuelling is attributed to the rapid incorporation of the dense spheromak plasma into the tokamak. After an abrupt increase (up to 80%), the tokamak current decays by a factor of three because of plasma cooling caused by the merging of the relatively cold spheromak with the tokamak. The tokamak density profile peaks sharply because of the injected spheromak plasma (ne increases by a factor of six) and then becomes hollow, suggestive of an interchange instability. Also discussed is the energy efficiency of spheromak injection current drive and the scaling of this process to larger machines. Refuelling by spheromak injection appears to be a viable scheme for larger machines. However, refluxing by spheromak injection is limited by geometrical and electrical efficiencies (both about 10%) as well as a high repetition rate requirement

M.R. Brown; P.M. Bellan

1992-01-01T23:59:59.000Z

217

The hiphop virtual machine  

Science Journals Connector (OSTI)

The HipHop Virtual Machine (HHVM) is a JIT compiler and runtime for PHP. While PHP values are dynamically typed, real programs often have latent types that are useful for optimization once discovered. Some types can be proven through static analysis, ... Keywords: dynamic languages, jit compiler, php, tracelet

Keith Adams, Jason Evans, Bertrand Maher, Guilherme Ottoni, Andrew Paroski, Brett Simmers, Edwin Smith, Owen Yamauchi

2014-10-01T23:59:59.000Z

218

Refrigerant charge management in a heat pump water heater  

DOE Patents [OSTI]

Heat pumps that heat or cool a space and that also heat water, refrigerant management systems for such heat pumps, methods of managing refrigerant charge, and methods for heating and cooling a space and heating water. Various embodiments deliver refrigerant gas to a heat exchanger that is not needed for transferring heat, drive liquid refrigerant out of that heat exchanger, isolate that heat exchanger against additional refrigerant flowing into it, and operate the heat pump while the heat exchanger is isolated. The heat exchanger can be isolated by closing an electronic expansion valve, actuating a refrigerant management valve, or both. Refrigerant charge can be controlled or adjusted by controlling how much liquid refrigerant is driven from the heat exchanger, by letting refrigerant back into the heat exchanger, or both. Heat pumps can be operated in different modes of operation, and segments of refrigerant conduit can be interconnected with various components.

Chen, Jie; Hampton, Justin W.

2014-06-24T23:59:59.000Z

219

On-machine 3D vision system for machining setup modeling  

E-Print Network [OSTI]

3 ORIGINAL ARTICLE On-machine 3D vision system for machiningIn computer numerical control machine tools, using machiningIn this paper, an on-machine vision system is presented to

Zhang, Xi; Tian, Xiaodong; Yamazaki, Kazuo

2010-01-01T23:59:59.000Z

220

The Fusion Machine (extended abstract)  

E-Print Network [OSTI]

The Fusion Machine (extended abstract) Philippa Gardner Cosimo Laneve Lucian Wischik March 27, 2002. In particular, we describe a dis- tributed abstract machine called the fusion machine. In it, only channels exist at runtime. It uses a form of concurrent constraints called fusions--equations on channel names

Gardner, Philippa

Note: This page contains sample records for the topic "heating machine drive" 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

Materialization of Universal Turing Machines  

E-Print Network [OSTI]

Materialization of Universal Turing Machines Rainer Glaschick supporting Heinz-Nixdorf MuseumsForum Paderborn, Germany #12;Contents Alan Turing's relation to Germany Turing Machines Hasenjaeger on secret communications 1947: Göttingen -- inquiry on state of computing machines #12;Turing and Münster

222

Toolbox Safety Talk Woodworking Machines  

E-Print Network [OSTI]

Toolbox Safety Talk Woodworking Machines Environmental Health & Safety Facilities Safety & Health to Environmental Health & Safety for recordkeeping. Machine shops are an integral part of the Cornell University for many student courses and elective activities. Woodworking machines can pose a myriad of hazards

Pawlowski, Wojtek

223

Driving Green com | Open Energy Information  

Open Energy Info (EERE)

Driving Green com Jump to: navigation, search Name: Driving Green.com Place: Melbourne, Florida Zip: 32904 Sector: Vehicles Product: Driving green.com is a website that allows...

224

CLASSIFYING MICROARRAY DATA USING SUPPORT VECTOR MACHINES  

E-Print Network [OSTI]

Chapter 9 CLASSIFYING MICROARRAY DATA USING SUPPORT VECTOR MACHINES Sayan Mukherjee Post biological systems. Molecular classification approaches based on machine learning algorithms applied to DNA., 2001). One particular machine learning algorithm, Support Vector Machines (SVMs), has shown promise

Mukherjee, Sayan

225

Integrating preconcentrator heat controller  

DOE Patents [OSTI]

A method and apparatus for controlling the electric resistance heating of a metallic chemical preconcentrator screen, for example, used in portable trace explosives detectors. The length of the heating time-period is automatically adjusted to compensate for any changes in the voltage driving the heating current across the screen, for example, due to gradual discharge or aging of a battery. The total deposited energy in the screen is proportional to the integral over time of the square of the voltage drop across the screen. Since the net temperature rise, .DELTA.T.sub.s, of the screen, from beginning to end of the heating pulse, is proportional to the total amount of heat energy deposited in the screen during the heating pulse, then this integral can be calculated in real-time and used to terminate the heating current when a pre-set target value has been reached; thereby providing a consistent and reliable screen temperature rise, .DELTA.T.sub.s, from pulse-to-pulse.

Bouchier, Francis A. (Albuquerque, NM); Arakaki, Lester H. (Edgewood, NM); Varley, Eric S. (Albuquerque, NM)

2007-10-16T23:59:59.000Z

226

Input to the FESAC Priorities Panel: RF Heating Technology Submitted by  

E-Print Network [OSTI]

plan for development of Fusion Energy. A strong program of Electron Cyclotron Heating Technology in plasma physics research. What is ECH Technology? Electron Cyclotron Heating (ECH) and Electron Cyclotron Current Drive (ECCD) are used for plasma heating and current drive at the electron cyclotron resonance

227

ARM - SGP Rural Driving Hazards  

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

Rural Driving Hazards Rural Driving Hazards SGP Related Links Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Fact Sheet Images Information for Guest Scientists Contacts SGP Rural Driving Hazards The rural location of the Southern Great Plains (SGP) site facilities requires that visitors travel on unpaved, dirt and gravel, roads. Visitors should be aware of the driving hazards this presents by taking the following precautions: Proceed cautiously: Many rural roads have unmarked and blind intersections. Slow down: Sanded and gravel raods can cause a vehicle to swerve. Maintain a safe following distance: During the dry season, vehicles

228

Induction-drive magnetohydrodynamic propulsion  

Science Journals Connector (OSTI)

The use of magnetohydrodynamic propulsion for marine applications is reviewed with emphasis on induction- ... . Comparisons are made with direct-drive MHD propulsion systems. Application to pumps for hazardous fl...

D. L. Mitchell; D. U. Gubser

1993-08-01T23:59:59.000Z

229

Adjustable Speed Drive Industrial Applications  

E-Print Network [OSTI]

Electric motors are significant users of electricity in the United States. Approximately 66 percent of the total electricity in the U.S. is used by electric motors. Electronic adjustable speed drives (ASDs) can save energy, lower maintenance cost...

Poole, J. N.

230

Grand Challenge Portfolio: Driving Innovations in Industrial...  

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

Grand Challenge Portfolio: Driving Innovations in Industrial Energy Efficiency, January 2011 Grand Challenge Portfolio: Driving Innovations in Industrial Energy Efficiency, January...

231

Advanced Electric Drive Vehicle Education Program | Department...  

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

Advanced Electric Drive Vehicle Education Program Advanced Electric Drive Vehicle Education Program 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer...

232

Advanced Electric Drive Vehicles | Department of Energy  

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

D.C. tiarravt039schwendeman2010o.pdf More Documents & Publications Advanced Electric Drive Vehicles Advanced Electric Drive Vehicles Energy & Manufacturing Workforce...

233

Integrated Biogeochemical and Hydrologic Processes Driving Arsenic...  

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

Biogeochemical and Hydrologic Processes Driving Arsenic Release from Shallow Sediments to Groundwaters of the Mekong Integrated Biogeochemical and Hydrologic Processes Driving...

234

Computational Models -Lecture 6 Turing Machines  

E-Print Network [OSTI]

Computational Models - Lecture 6 Turing Machines Slides modified by Benny Chor, based on original Models - Lecture 6 Turing Machines Turing Machines Slides modified by Benny Chor, based on original Models - Lecture 6 Turing Machines Turing Machines Turing Machines Slides modified by Benny Chor, based

Beimel, Amos

235

International Business Machines Corporation  

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

Business Machines Corporation Business Machines Corporation Thomas J. Watson Research Center 1101 Kitchawan Road, NY 10598 Office of the Assistant General Counsel for Technology Transfer and Intellectual Property U.S. Department of Energy 1000 Independence Ave, SW, Washington DC 20585 ATTN: TECHNOLOGY TRANSFER QUESTIONS Sent electronically to GC-62@hq.doe.gov RE: Questions Concerning Technology Transfer Practices at DOE Laboratories Federal Register, Vol. 73, No. 229 Dear Mr. Gottlieb: IBM Corporation appreciates the opportunity to provide comments in response to the Department of Energy notice of inquiry. DOE Laboratories are a fundamental resource to government, industry, academia and the economy as a whole. All can benefit from efficient contracting processes and

236

Diamagnetic loop measurement in Korea Superconducting Tokamak Advanced Research machine  

SciTech Connect (OSTI)

Diamagnetic loop (DL), which consists of two poloidal loops inside the vacuum vessel, is used to measure the diamagnetic flux during a plasma discharge in the Korea Superconducting Tokamak Advanced Research (KSTAR) machine. The vacuum fluxes in the DL signal can be compensated up to 0.1 mWb by using the coefficients, which are obtained from experimental investigations, in the vacuum flux measurements during vacuum shots under same operational conditions of magnetic coils for plasma experiment in the KSTAR machine. The maximum error in the diamagnetic flux measurement due to the errors of the coefficients was estimated as {approx}0.22 mWb. From the diamagnetic flux measurements for the ohmically heated circular plasmas in the KSTAR machine, the stored energy agrees well with the estimated kinetic energy within the discrepancy of 25%. When the electron cyclotron heating, the neutral beam injection, and the ion cyclotron resonance heating are added to the ohmically heated limiter plasmas, the additional heating effects can be clearly observed from the increase of the stored energy evaluated in the DL measurement.

Bak, J. G.; Lee, S. G.; Kim, H. S. [National Fusion Research Institute, Gwahangno 113, Yuseong-Gu, Daejeon 305-333 (Korea, Republic of)

2011-06-15T23:59:59.000Z

237

Municipal District Heating and Cooling Co-generation System Feasibility Research  

E-Print Network [OSTI]

In summer absorption refrigerating machines provide cold water using excess heat from municipal thermoelectric power plant through district heating pipelines, which reduces peak electric load from electricity networks in summer. The paper simulates...

Zhang, W.; Guan, W.; Pan, Y.; Ding, G.; Song, X.; Zhang, Y.; Li, Y.; Wei, H.; He, Y.

2006-01-01T23:59:59.000Z

238

HIGH-POWER MILLIMETREWAVE TRANSMISSION SYSTEMS AND COMPONENTS FOR ELECTRON CYCLOTRON HEATING OF FUSION PLASMAS  

Science Journals Connector (OSTI)

At the Institute for Plasma Research at the University of Stuttgart, high-power millimetre wave transmission systems for electron cyclotron heating (ECRH) and current drive (ECCD)...

W. Kasparek; G. Dammertz; V. Erckmann…

2005-01-01T23:59:59.000Z

239

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 55, NO. 2, FEBRUARY 2008 501 Permanent Magnet Synchronous Machine  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 55, NO. 2, FEBRUARY 2008 501 Permanent Magnet. The proposed hybrid control scheme is applied to an electrical motor drive composed of an inverter coupled to a perma- nent magnet synchronous machine. An evolution which insures a fixed modulation frequency is also

Paris-Sud XI, Université de

240

Substantially Parallel Flux Uncluttered Rotor Machines (U-Machine...  

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

brushless adjustable field excitation for high starting torque, field weakening, and power factor improvement and novel locks for higher peak speed. This novel machine shows...

Note: This page contains sample records for the topic "heating machine drive" 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

Distribution Drive | Open Energy Information  

Open Energy Info (EERE)

Drive Drive Jump to: navigation, search Name Distribution Drive Place Dallas, Texas Zip 75205 Product Biodiesel fuel distributor. Coordinates 32.778155°, -96.795404° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.778155,"lon":-96.795404,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

242

Extremal asymmetric universal cloning machines  

E-Print Network [OSTI]

The trade-offs among various output fidelities of asymmetric universal cloning machines are investigated. First we find out all the attainable optimal output fidelities for the 1 to 3 asymmetric universal cloning machine and it turns out that there are two kinds of extremal asymmetric cloning machines which have to cooperate in order to achieve some of the optimal output fidelities. Second we construct a family of extremal cloning machines that includes the universal symmetric cloning machine as well as an asymmetric 1 to $1+N$ cloning machine for qudits with two different output fidelities such that the optimal trade-off between the measurement disturbance and state estimation is attained in the limit of infinite $N$.

Mingming Jiang; Sixia Yu

2012-02-08T23:59:59.000Z

243

20140301-0331_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 Mar to 31 Mar 2014.

Thibedeau, Joe

2014-04-07T23:59:59.000Z

244

20140601-0630_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 June to 30 June 2014.

Thibedeau, Joe

2014-06-30T23:59:59.000Z

245

20140701-0731_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 July to 31 July 2014.

Thibedeau, Joe

2014-07-31T23:59:59.000Z

246

20131201-1231_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 Dec to 31 Dec 2013.

Thibedeau, Joe

2014-01-08T23:59:59.000Z

247

20140201-0228_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 Feb to 28 Feb 2014.

Thibedeau, Joe

2014-03-03T23:59:59.000Z

248

20140501-0531_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 May to 31 May 2014.

Thibedeau, Joe

2014-06-02T23:59:59.000Z

249

20131101-1130_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 Nov to 30 Nov 2013.

Thibedeau, Joe

2013-12-02T23:59:59.000Z

250

20130801-0831_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 8/1/13 to 8/31/13.

Vanderhoff, Alex

2013-09-10T23:59:59.000Z

251

20130901-0930_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 1 September 2013 to 30 September 2013.

Thibedeau, Joe

2013-10-25T23:59:59.000Z

252

20131001-1031_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 1 Oct 2013 to 31 Oct 2013.

Thibedeau, Joe

2013-11-05T23:59:59.000Z

253

20140101-0131_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 Jan to 31 Jan 2014.

Thibedeau, Joe

2014-02-03T23:59:59.000Z

254

20130501-20130531_Green Machine Florida Canyon Hourly Data  

SciTech Connect (OSTI)

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from May 2013

Vanderhoff, Alex

2013-06-18T23:59:59.000Z

255

20140201-0228_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 Feb to 28 Feb 2014.

Thibedeau, Joe

256

20131101-1130_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 Nov to 30 Nov 2013.

Thibedeau, Joe

257

20140301-0331_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 Mar to 31 Mar 2014.

Thibedeau, Joe

258

20131001-1031_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 1 Oct 2013 to 31 Oct 2013.

Thibedeau, Joe

259

20140601-0630_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 June to 30 June 2014.

Thibedeau, Joe

260

20131201-1231_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 Dec to 31 Dec 2013.

Thibedeau, Joe

Note: This page contains sample records for the topic "heating machine drive" 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

20130801-0831_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 8/1/13 to 8/31/13.

Vanderhoff, Alex

262

20130501-20130531_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from May 2013

Vanderhoff, Alex

263

20140701-0731_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 July to 31 July 2014.

Thibedeau, Joe

264

20140101-0131_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 Jan to 31 Jan 2014.

Thibedeau, Joe

265

20140501-0531_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 01 May to 31 May 2014.

Thibedeau, Joe

266

20130901-0930_Green Machine Florida Canyon Hourly Data  

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

Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant with output capacity expected in the 30-70kWe range. The Green Machine is an Organic Rankine Cycle power plant. The Florida Canyon machine is powered by geothermal brine with air cooled condensing. The data provided is an hourly summary from 1 September 2013 to 30 September 2013.

Thibedeau, Joe

267

Design of Vitrification Machine  

E-Print Network [OSTI]

or fewer cryo-protectants, this is deemed to be an appropriate number of fluids for the machine to support. Parameters for the protocols will be input using a three-button and LCD interface. These features will allow lab technicians to vitrify or thaw... Interface Are the buttons placed to allow comfortable operation? Are the buttons’ functions clear or intuitive to the user? Do the buttons provide tactile feedback that is pleasing to the user? Is the LCD readout at a comfortable viewing angle? Is the LCD...

McDonald, Todd William

2009-11-30T23:59:59.000Z

268

Geothermal Heat Pumps- Heating Mode  

Broader source: Energy.gov [DOE]

In winter, fluid passing through this vertical, closed loop system is warmed by the heat of the earth; this heat is then transferred to the building.

269

Mysteries of 'molecular machines' revealed  

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

companies and researchers to see the detailed inner workings of molecular machines. January 15, 2015 A picture of a membrane protein called cysZ determined with Phenix...

270

Virtual Machine in Automation Projects.  

E-Print Network [OSTI]

?? Virtual machine, as an engineering tool, has recently been introduced into automation projects in Tetra Pak Processing System AB. The goal of this paper… (more)

Xing, Xiaoyuan

2010-01-01T23:59:59.000Z

271

Laser Direct Drive: Scientific Advances,  

E-Print Network [OSTI]

· Simpler targets & physics · Predict Fusion Class Gains (> 140) at lower laser energy (500 kJ - 1 MJ) #12;7 KrF lasers have advantages for fusion energy PHYSICS Deeper UV (248 nm vs 351 for glass): -- Greater · chamber #12;9 Gain for Fusion Energy New Direct Drive Designs: Power plant class gains, much smaller laser

272

Anomalous-viscosity current drive  

DOE Patents [OSTI]

The present invention relates to a method and apparatus for maintaining a steady-state current for magnetically confining the plasma in a toroidal magnetic confinement device using anomalous viscosity current drive. A second aspect of this invention relates to an apparatus and method for the start-up of a magnetically confined toroidal plasma.

Stix, T.H.; Ono, M.

1986-04-25T23:59:59.000Z

273

Time (hole?) machines John Byron Manchak  

E-Print Network [OSTI]

Time (hole?) machines John Byron Manchak Department of Philosophy, University of Washington, Box machines Hole machines Time travel General relativity a b s t r a c t Within the context of general relativity, we consider a type of "time machine" and introduce the related "hole machine". We review what

Manchak, John

274

Methods, systems and apparatus for controlling third harmonic voltage when operating a multi-space machine in an overmodulation region  

SciTech Connect (OSTI)

Methods, system and apparatus are provided for controlling third harmonic voltages when operating a multi-phase machine in an overmodulation region. The multi-phase machine can be, for example, a five-phase machine in a vector controlled motor drive system that includes a five-phase PWM controlled inverter module that drives the five-phase machine. Techniques for overmodulating a reference voltage vector are provided. For example, when the reference voltage vector is determined to be within the overmodulation region, an angle of the reference voltage vector can be modified to generate a reference voltage overmodulation control angle, and a magnitude of the reference voltage vector can be modified, based on the reference voltage overmodulation control angle, to generate a modified magnitude of the reference voltage vector. By modifying the reference voltage vector, voltage command signals that control a five-phase inverter module can be optimized to increase output voltages generated by the five-phase inverter module.

Perisic, Milun; Kinoshita, Michael H; Ranson, Ray M; Gallegos-Lopez, Gabriel

2014-06-03T23:59:59.000Z

275

NEUTRAL BEAM HEATING OF A REVERSED-FIELD PINCH IN THE MADISON  

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

PPCD plasmas. Fast ion diffusion is crucial in driving a flatter heating profile to limit heat conduction- losses. Measured core T e is only possible with significant mid-radius...

276

US DRIVE Driving Research and Innovation for Vehicle Efficiency and Energy Sustainability Partnership Plan  

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

Partnership Plan Partnership Plan March 2013 U.S. DRIVE Partnership Plan Table of Contents Foreword ....................................................................................................................................................... 2 Definition ...................................................................................................................................................... 3 Partners ......................................................................................................................................................... 3 U.S. DRIVE Vision ........................................................................................................................................... 3 U.S. DRIVE Mission ........................................................................................................................................ 4

277

Two color machining of composites  

SciTech Connect (OSTI)

Quality cutting and drilling of 9 composite materials is possible using diode-pumped neodymium lasers. Machining at 1.06 {mu}m is improved by optimizing the pulse format of the diode-pumped neodymium lasers of the Precision Laser Machining (PLM) Consortium. Further improvements are obtained with the PLM lasers operating at 0.53 {mu}m.

Maher, W. [Boeing Defense & Space Group, Seattle, WA (United States)

1996-12-31T23:59:59.000Z

278

Finite State Machines Testing problems Conformance Testing Machine Identification FSM-Based Testing  

E-Print Network [OSTI]

Finite State Machines Testing problems Conformance Testing Machine Identification FSM-Based Testing Mousavi: FSM-Based Testing Part II #12;Finite State Machines Testing problems Conformance Testing Machine Identification Outline Finite State Machines Testing problems Conformance Testing Machine Identification Mousavi

Mousavi, Mohammad

279

Extremal quantum cloning machines  

E-Print Network [OSTI]

We investigate the problem of cloning a set of states that is invariant under the action of an irreducible group representation. We then characterize the cloners that are "extremal" in the convex set of group covariant cloning machines, among which one can restrict the search for optimal cloners. For a set of states that is invariant under the discrete Weyl-Heisenberg group, we show that all extremal cloners can be unitarily realized using the so-called "double-Bell states", whence providing a general proof of the popular ansatz used in the literature for finding optimal cloners in a variety of settings. Our result can also be generalized to continuous-variable optimal cloning in infinite dimensions, where the covariance group is the customary Weyl-Heisenberg group of displacements.

G. Chiribella; G. M. D'Ariano; P. Perinotti; N. J. Cerf

2005-07-14T23:59:59.000Z

280

HybriDrive Propulsion System  

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

HybriDrive HybriDrive ® Propulsion System Cleaner, smarter power for transit DOE/FTA Fuel Cell Research Priorities Workshop Washington, DC 7 June 2010 Bart W. Mancini Sr. Principal Systems Engineer BAE Systems Ph: 607-770-4103 bart.mancini@baesystems.com 2 Overview 3 * BAE Systems FC Experience / Deployments * Technology gaps/barriers to full commercialization of fuel cell buses * Well-to-wheels energy efficiency and emissions * Cost metrics * Bus integration issues * Fuel cell bus R&D needs * Future plans BAE Systems FC Experience / Deployments 4 * 1998 - Georgetown/FTA/DOE Fuel Cell Bus #1 (still serviceable) * UTC 100 kW Phosphoric Acid FC using on-board Methanol Reformate, Hybrid propulsion & Electric accessories * 2000 - Georgetown/FTA/DOE Fuel Cell Bus #2 (retired) *

Note: This page contains sample records for the topic "heating machine drive" 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

Granular gases under extreme driving  

E-Print Network [OSTI]

We study inelastic gases in two dimensions using event-driven molecular dynamics simulations. Our focus is the nature of the stationary state attained by rare injection of large amounts of energy to balance the dissipation due to collisions. We find that under such extreme driving, with the injection rate much smaller than the collision rate, the velocity distribution has a power-law high energy tail. The numerically measured exponent characterizing this tail is in excellent agreement with predictions of kinetic theory over a wide range of system parameters. We conclude that driving by rare but powerful energy injection leads to a well-mixed gas and constitutes an alternative mechanism for agitating granular matter. In this distinct nonequilibrium steady-state, energy cascades from large to small scales. Our simulations also show that when the injection rate is comparable with the collision rate, the velocity distribution has a stretched exponential tail.

W. Kang; J. Machta; E. Ben-Naim

2010-02-04T23:59:59.000Z

282

Direct control of air gap flux in permanent magnet machines  

DOE Patents [OSTI]

A method and apparatus for field weakening in PM machines uses field weakening coils (35, 44, 45, 71, 72) to produce flux in one or more stators (34, 49, 63, 64), including a flux which counters flux normally produced in air gaps between the stator(s) (34, 49, 63, 64) and the rotor (20, 21, 41, 61) which carries the PM poles. Several modes of operation are introduced depending on the magnitude and polarity of current in the field weakening coils (35, 44, 45, 71, 72). The invention is particularly useful for, but not limited to, the electric vehicle drives and PM generators.

Hsu, John S. (Oak Ridge, TN)

2000-01-01T23:59:59.000Z

283

Optimization of condensing gas drive  

E-Print Network [OSTI]

- cal, undersaturated reservoir with gas being injected into the crest and oil being produced from the base of the structure. Fractional oil re- covery at gas breakthrough proved to be less sensitive to changes in oil withdrawal rates as the gas... injection pressure was increased. The validity of the model was established by accurately simulating several low pressure gas drives conducted in the laboratory. Oil recoveries at gas breakthrough using the model compared closely with those recoveries...

Lofton, Larry Keith

2012-06-07T23:59:59.000Z

284

Lower oil prices also cutting winter heating oil and propane...  

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

Lower oil prices also cutting winter heating oil and propane bills Lower oil prices are not only driving down gasoline costs, but U.S. consumers will also see a bigger savings in...

285

Current drive operation in a tokamak  

Science Journals Connector (OSTI)

Three modes of current drive operation in a tokamak — continuous, cyclic, and rfinitiated-are ... A model design of a saturable iron core tokamak for current drive experiments is also presented.

O. Mitarai; A. Hirose

1985-12-01T23:59:59.000Z

286

What Drives the Brewer–Dobson Circulation?  

Science Journals Connector (OSTI)

Recent studies have revealed strong interactions between resolved Rossby wave and parameterized gravity wave driving in stratosphere-resolving atmospheric models. Perturbations to the parameterized wave driving are often compensated by opposite ...

Naftali Y. Cohen; Edwin P. Gerber; Oliver Bühler

2014-10-01T23:59:59.000Z

287

Vehicle Technologies Office: U.S. DRIVE  

Broader source: Energy.gov [DOE]

U.S. DRIVE stands for Driving Research and Innovation for Vehicle efficiency and Energy sustainability. It is a non-binding and voluntary government-industry partnership focused on advanced...

288

October Blood Drive Announcement | Jefferson Lab  

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

American Red Cross Blood Drive Scheduled for Oct. 31 The American Red Cross Blood Drive will take place Friday, October 31st from 10 a.m.-4 p.m. in CEBAF Center, Room F113. New and...

289

Comparative LCA of a Linear Motor and Hybrid Feed Drive under High Cutting Loads  

Science Journals Connector (OSTI)

Abstract Linear motor drives (LMDs) are well known to provide significant advantages in terms of positioning speed and accuracy over traditional screw drives (SDs), making them better suited for high-speed high-precision machine tools. However, their use in such machine tools is severely limited by their tendency to consume a lot of electrical energy and cause thermal issues, particularly under high cutting loads. A hybrid feed drive (HFD) has recently been proposed as a possible solution to this dilemma. The HFD switches between LMD and SD actuation depending on the mode of the manufacturing operation, thus achieving speeds and accuracies similar to \\{LMDs\\} while consuming much less energy. This paper presents a comparative life cycle analysis (LCA) of the proposed HFD with an LMD as the baseline for the comparison. The functional unit is taken as the production of parts that involve heavy cutting by a small-sized 3-axis precision milling machine for 250 8-hour work days per year over a 12-year first-use life span. Energy savings provided by the HFD during its use phase vis-a-vis the additional energy investments into the HFD at various phases in its life cycle are compared. The analysis predicts a net positive impact, in terms of energy and the environment, for the HFD compared to the LMD under high cutting loads.

Siddharth Kale; Nattasit Dancholvichit; Chinedum Okwudire

2014-01-01T23:59:59.000Z

290

Machine Status | Argonne Leadership Computing Facility  

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

User Support User Support Machine Status Presentations Training & Outreach User Survey Machine Status Science on Mira Cores Core Hours Catalyst 65536 114771.01226563 Large scale...

291

Machine scheduling using the Bees algorithm.  

E-Print Network [OSTI]

??Single-machine scheduling is the process of assigning a group of jobs to a machine. The jobs are arranged so that a performance measure, such as… (more)

Phrueksanant, Janyarat

2013-01-01T23:59:59.000Z

292

Hilbert's machine and w-order  

E-Print Network [OSTI]

Hilbert's machine is a supertask machine inspired by Hilbert's Hotel whose functioning leads to a contradictory result involving w-ordering.

Antonio Leon

2006-08-14T23:59:59.000Z

293

Characterization of electrical discharge machining plasmas.  

E-Print Network [OSTI]

??Electrical Discharge Machining (EDM) is a well-known machining technique since more than fifty years. Its principle is to use the eroding effect on the electrodes… (more)

Descoeudres, Antoine

2006-01-01T23:59:59.000Z

294

The Universal RG Machine  

E-Print Network [OSTI]

Functional Renormalization Group Equations constitute a powerful tool to encode the perturbative and non-perturbative properties of a physical system. We present an algorithm to systematically compute the expansion of such flow equations in a given background quantity specified by the approximation scheme. The method is based on off-diagonal heat-kernel techniques and can be implemented on a computer algebra system, opening access to complex computations in, e.g., Gravity or Yang-Mills theory. In a first illustrative example, we re-derive the gravitational $\\beta$-functions of the Einstein-Hilbert truncation, demonstrating their background-independence. As an additional result, the heat-kernel coefficients for transverse vectors and transverse-traceless symmetric matrices are computed to second order in the curvature.

Dario Benedetti; Kai Groh; Pedro F. Machado; Frank Saueressig

2010-12-14T23:59:59.000Z

295

Consider Steam Turbine Drives for Rotating Equipment  

Broader source: Energy.gov [DOE]

This tip sheet outlines the benefits of steam turbine drives for rotating equipment as part of optimized steam systems.

296

Gas cooled traction drive inverter  

SciTech Connect (OSTI)

The present invention provides a modular circuit card configuration for distributing heat among a plurality of circuit cards. Each circuit card includes a housing adapted to dissipate heat in response to gas flow over the housing. In one aspect, a gas-cooled inverter includes a plurality of inverter circuit cards, and a plurality of circuit card housings, each of which encloses one of the plurality of inverter cards.

Chinthavali, Madhu Sudhan

2013-10-08T23:59:59.000Z

297

Indianapolis Offers a Lesson on Driving Demand  

Broader source: Energy.gov [DOE]

Successful program managers know that understanding the factors that drive homeowners to make upgrades is critical to the widespread adoption of energy efficiency. What better place to learn about driving demand for upgrades than in Indianapolis, America's most famous driving city?

298

Slide system for machine tools  

DOE Patents [OSTI]

The present invention relates to a machine tool which permits the machining of nonaxisymmetric surfaces on a workpiece while rotating the workpiece about a central axis of rotation. The machine tool comprises a conventional two-slide system (X-Y) with one of these slides being provided with a relatively short travel high-speed auxiliary slide which carries the material-removing tool. The auxiliary slide is synchronized with the spindle speed and the position of the other two slides and provides a high-speed reciprocating motion required for the displacement of the cutting tool for generating a nonaxisymmetric surface at a selected location on the workpiece.

Douglass, S.S.; Green, W.L.

1980-06-12T23:59:59.000Z

299

Slide system for machine tools  

DOE Patents [OSTI]

The present invention relates to a machine tool which permits the machining of nonaxisymmetric surfaces on a workpiece while rotating the workpiece about a central axis of rotation. The machine tool comprises a conventional two-slide system (X-Y) with one of these slides being provided with a relatively short travel high-speed auxiliary slide which carries the material-removing tool. The auxiliary slide is synchronized with the spindle speed and the position of the other two slides and provides a high-speed reciprocating motion required for the displacement of the cutting tool for generating a nonaxisymmetric surface at a selected location on the workpiece.

Douglass, Spivey S. (Oak Ridge, TN); Green, Walter L. (Knoxville, TN)

1982-01-01T23:59:59.000Z

300

IMPROVING THE ENERGY EFFICIENCY OF A MID-SIZE POWER PLANT BY REDUCTION IN AUXILIARY POWER AND IMPROVED HEAT TRANSFER.  

E-Print Network [OSTI]

??This study incorporates the potential use of Variable Frequency Drives on various motors as well as areas of improved heat transfer in an older, mid-sized… (more)

Green, Jeffrey Andrew

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heating machine drive" 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

Susanville District Heating District Heating Low Temperature...  

Open Energy Info (EERE)

Susanville District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Susanville District Heating District Heating Low Temperature...

302

CNC Oxyfuel gas cutting machine  

Science Journals Connector (OSTI)

In today's era of plasma and laser cutting, machines using oxy-acetylene flame are still meritorious due to simplicity and cost effectiveness. Demand for metal cutting with good quality as regarding to edge quality, circularity, formation of redeposit ...

Snehal Gawali; Nilesh Gawali

2010-02-01T23:59:59.000Z

303

A compact molecular beam machine  

SciTech Connect (OSTI)

We have developed a compact, low cost, modular, crossed molecular beam machine. The new apparatus utilizes several technological advancements in molecular beams valves, ion detection, and vacuum pumping to reduce the size, cost, and complexity of a molecular beam apparatus. We apply these simplifications to construct a linear molecular beam machine as well as a crossed-atomic and molecular beam machine. The new apparatus measures almost 50 cm in length, with a total laboratory footprint less than 0.25 m{sup 2} for the crossed-atomic and molecular beam machine. We demonstrate the performance of the apparatus by measuring the rotational temperature of nitric oxide from three common molecular beam valves and by observing collisional energy transfer in nitric oxide from a collision with argon.

Jansen, Paul [Vrije Universiteit, 1081 HV Amsterdam (Netherlands); Chandler, David W.; Strecker, Kevin E. [Sandia National Laboratories, Livermore, California 94551 (United States)

2009-08-15T23:59:59.000Z

304

Diamond turning machine controller implementation  

SciTech Connect (OSTI)

The standard controller for a Pnuemo ASG 2500 Diamond Turning Machine, an Allen Bradley 8200, has been replaced with a custom high-performance design. This controller consists of four major components. Axis position feedback information is provided by a Zygo Axiom 2/20 laser interferometer with 0.1 micro-inch resolution. Hardware interface logic couples the computers digital and analog I/O channels to the diamond turning machine`s analog motor controllers, the laser interferometer, and other machine status and control information. It also provides front panel switches for operator override of the computer controller and implement the emergency stop sequence. The remaining two components, the control computer hardware and software, are discussed in detail below.

Garrard, K.P.; Taylor, L.W.; Knight, B.F.; Fornaro, R.J.

1988-12-01T23:59:59.000Z

305

Time Machine at the LHC  

E-Print Network [OSTI]

Recently, black hole and brane production at CERN's Large Hadron Collider (LHC) has been widely discussed. We suggest that there is a possibility to test causality at the LHC. We argue that if the scale of quantum gravity is of the order of few TeVs, proton-proton collisions at the LHC could lead to the formation of time machines (spacetime regions with closed timelike curves) which violate causality. One model for the time machine is a traversable wormhole. We argue that the traversable wormhole production cross section at the LHC is of the same order as the cross section for the black hole production. Traversable wormholes assume violation of the null energy condition (NEC) and an exotic matter similar to the dark energy is required. Decay of the wormholes/time machines and signatures of time machine events at the LHC are discussed.

I. Ya. Aref'eva; I. V. Volovich

2007-10-15T23:59:59.000Z

306

Machine Learning ! ! ! ! ! Srihari Ising Models, Boltzmann  

E-Print Network [OSTI]

Machine Learning ! ! ! ! ! Srihari 1 Ising Models, Boltzmann Machines, Deep Belief Networks Sargur Srihari srihari@cedar.buffalo.edu #12;Machine Learning ! ! ! ! ! Srihari Topics · Ising Model · Boltzmann · Metric MRF 2 #12;Machine Learning ! ! ! ! ! Srihari Ising Model · Earliest Markov network model

307

Standard Operating Procedure (SOP) -Milling Machine  

E-Print Network [OSTI]

Standard Operating Procedure (SOP) - Milling Machine · Keep all guards in place while operating the machine. · While operating the milling machine allow no one else to touch it. · Keep hands away from moving cutting tools. · Do not make measurements of the stock while the milling machine is powered. · Do

Veiga, Pedro Manuel Barbosa

308

pdf version of the entry Time Machines  

E-Print Network [OSTI]

pdf version of the entry Time Machines http://plato.stanford.edu/archives/win2010/entries/time-machine, Stanford, CA 94305 Time Machines Copyright c 2010 by the authors John Earman and Christian W¨uthrich All rights reserved. Copyright policy: https://leibniz.stanford.edu/friends/info/copyright/ Time Machines

Wüthrich, Christian

309

Optimization Online - Optimal Design of Electrical Machines ...  

E-Print Network [OSTI]

Jun 8, 2011 ... Optimal Design of Electrical Machines: Mathematical Programming ... Science and Engineering (Multidisciplinary Design Optimization ).

Sonia Cafieri

2011-06-08T23:59:59.000Z

310

Optimization Algorithms in Machine Learning Stephen Wright  

E-Print Network [OSTI]

Optimization Algorithms in Machine Learning Stephen Wright University of Wisconsin-Madison NIPS Tutorial, 6 Dec 2010 Stephen Wright (UW-Madison) Optimization in Machine Learning NIPS Tutorial, 6 Dec 2010 in machine learning. Stephen Wright (UW-Madison) Optimization in Machine Learning NIPS Tutorial, 6 Dec 2010 2

Wright, Steve

311

A Machine Approach for Field Weakening of Permanent-Magnet Motors  

SciTech Connect (OSTI)

The commonly known technology of field weakening for permanent-magnet (PM) motors is achieved by controlling the direct-axis current component through an inverter, without using mechanical variation of the air gap, a new machine approach for field weakening of PM machines by direct control of air-gap fluxes is introduced. The demagnetization situation due to field weakening is not an issue with this new method. In fact, the PMs are strengthened at field weakening. The field-weakening ratio can reach 1O:1 or higher. This technology is particularly useful for the PM generators and electric vehicle drives.

Hsu, J.S.

2000-04-02T23:59:59.000Z

312

Dragload analysis: A unique method of improving paper machine efficiency  

SciTech Connect (OSTI)

Dragload is the force required to drive a forming fabric while the sheet is being dewatered. The suggested method for calculating dragload and component dragload uses the relationship between fabric velocity and tension and the mechanical properties of the fabric. The advantage of this method over more conventional methods is its ability to be used on any type of machine or drive system and, most importantly, its ability to localize specific areas of dragload (component dragload) without the need to interrupt production on the machine. The method's limitation is that it does not produce an exact result, only an approximation. Obtaining the exact fabric velocity is difficult; however, there is enough accuracy in the readings with which to diagnose and troubleshoot. Steps taken to reduce dragload will help decrease energy consumption and increase forming fabric life. The suggested method provides a readily visible means of determining areas of high dragload. If used, this method will provide a valuable tool for further cost improvement in the papermaking process.

McMahon, M.J. (West Coast Wires, Vancouver, British Columbia (Canada))

1993-04-01T23:59:59.000Z

313

Applications of adjustable speed drives. (Latest citations from the EI Compendex*plus database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning types and applications of adjustable speed drives (ASD). Uses in heat pumps, fans, compressors, electric motors, boiler feed systems, and power transmission are described. Coverage includes AC-DC motors, induction motors, and brushless electric motors. Energy cost savings are also examined. (Contains a minimum of 102 citations and includes a subject term index and title list.)

Not Available

1994-06-01T23:59:59.000Z

314

Vehicle Technologies Office: U.S. DRIVE  

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

U.S. DRIVE U.S. DRIVE Logo for U.S. DRIVE - Driving Research and Innovation for Vehicle efficiency and Energy sustainability. U.S. DRIVE stands for Driving Research and Innovation for Vehicle efficiency and Energy sustainability. It is a non-binding and voluntary government-industry partnership focused on advanced automotive and related infrastructure technology research and development (R&D). Specifically, the Partnership is a forum for pre-competitive technical information exchange among partners to discuss R&D needs, develop joint goals and technology roadmaps, and evaluate R&D progress for a broad range of technical areas. By providing a framework for frequent and regular interaction among technical experts in a common area of expertise, the Partnership -

315

Electric vehicle drive train with contactor protection  

DOE Patents [OSTI]

A drive train for an electric vehicle includes a traction battery, a power drive circuit, a main contactor for connecting and disconnecting the traction battery and the power drive circuit, a voltage detector across contacts of the main contactor, and a controller for controlling the main contactor to prevent movement of its contacts to the closed position when the voltage across the contacts exceeds a predetermined threshold, to thereby protect the contacts of the contactor. The power drive circuit includes an electric traction motor and a DC-to-AC inverter with a capacitive input filter. The controller also inhibits the power drive circuit from driving the motor and thereby discharging the input capacitor if the contacts are inadvertently opened during motoring. A precharging contactor is controlled to charge the input filter capacitor prior to closing the main contactor to further protect the contacts of the main contactor.

Konrad, Charles E. (Roanoke, VA); Benson, Ralph A. (Roanoke, VA)

1994-01-01T23:59:59.000Z

316

Heat transfer analysis in Stirling engine heat input system  

SciTech Connect (OSTI)

One of the major factor in commercialization of Stirling engine is mass productivity, and the heat input system including tubular heater is one of the obstacles to mass production because of its complexity in shape and difficulty in manufacturing, which resulted from using oxidation-resistant, low-creep alloys which are not easy to machine and weld. Therefore a heater heat exchanger which is very simple in shape and easy to make has been devised, and a burner system appropriate to this heater also has been developed. In this paper specially devised heat input system which includes a heater shell shaped like U-cup and a flame tube located in the heater shell is analyzed in point of heat transfer processes to find optimum heat transfer. To enhance the heat transfer from the flame tube to the heater shell wall, it is required that the flame tube diameter be enlarged as close to the heater shell diameter as possible, and the flame tube temperature be raised as high as possible. But the enlargement of the flame tube diameter should be restricted by the state of combustion affected by hydraulic resistance of combustion gas, and the boost of the flame tube temperature should be considered carefully in the aspects of the flame tube`s service life.

Chung, W.; Kim, S. [LG Electronics Inc., Seoul (Korea, Republic of). Living System Lab.

1995-12-31T23:59:59.000Z

317

Automation of Facility Management Processes Using Machine-to-Machine Technologies  

Science Journals Connector (OSTI)

The emergence of machine-to-machine (M2M) technologies as a business opportunity is based on the observation that there are many more machines and objects in the world than people and that an everyday object h...

Sudha Krishnamurthy; Omer Anson; Lior Sapir; Chanan Glezer…

2008-01-01T23:59:59.000Z

318

DOE Drives Big Data Push  

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

2 Volume 9 Issue 2 2 Volume 9 Issue 2 From YAGS to Planetary Biology . . . . . . . . . . . . . . . 2 DOE Drives Big Data Push . . . . . . . . . . . . . . . . . . . . 3 Sweating Small Scale Genomics . . . . . . . . . . . . . . . 6 The Future of the DOE JGI . . . . . . . . . . . . . . . . . . . . 7 Save the Date for Meeting 8 . . . . . . . . . . . . . . . . . . . 8 also in this issue With a record 488 genomics researchers and bioinformaticians sitting in the Marriott Walnut Creek ballroom, New York Times science writer Carl Zimmer opened the DOE Joint Genome Institute's 7th Annual Genomics of Energy & Environment Meeting on March 20, 2012. Sharing his thoughts about being "On the Genome Beat," he informed the audience that he was worn down by seeing news about scientists successfully sequencing yet another genome sequence, and that "maybe some genomes shouldn't be written about." Zimmer's words engaged the audience in a discussion that

319

Current Drive in Recombining Plasma  

SciTech Connect (OSTI)

The Langevin equations describing the average collisional dynamics of suprathermal particles in nonstationary plasma remarkably admit an exact analytical solution in the case of recombining plasma. The current density produced by arbitrary particle fluxes is derived including the effect of charge recombination. Since recombination has the effect of lowering the charge density of the plasma, thus reducing the charged particle collisional frequencies, the evolution of the current density can be modified substantially compared to plasma with fixed charge density. The current drive efficiency is derived and optimized for discrete and continuous pulses of current, leading to the discovery of a nonzero "residual" current density that persists indefinitely under certain conditions, a feature not present in stationary plasmas.

P.F. Schmit and N.J. Fisch

2012-05-15T23:59:59.000Z

320

A concept of power generator using wind turbine, hydrodynamic retarder, and organic Rankine cycle drive  

Science Journals Connector (OSTI)

This paper describes a concept of electric power generating system that uses a wind turbine to generate kinetic energy which converts heat through a hydrodynamic retarder. The heat so generated is utilized to drive an organic Rankine cycle that converts thermal energy into electricity power for continuous and undisrupted supply during the year. A hydrodynamic retarder converts kinetic energy into heat through hot fluid by directing the flow of the fluid into the hydrodynamic retarder in a manner that resists rotation of blades of the wind turbine. The hot fluid circulating in the hydrodynamic retarder is a thermal heat source for vapor regeneration of organic heat exchange fluid mixture(s) used in the Rankine cycle. The expansion of the organic heat exchange fluid gets converted into rotation of the generator rotor.

Samuel Sami

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heating machine drive" 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

Plasma heating and hot ion sustaining in mirror based hybrids  

SciTech Connect (OSTI)

Possibilities of plasma heating and sloshing ion sustaining in mirror based hybrids are briefly reviewed. Sloshing ions, i.e. energetic ions with a velocity distribution concentrated to a certain pitch-angle, play an important role in plasma confinement and generation of fusion neutrons in mirror machines. Neutral beam injection (NBI) is first discussed as a method to generate sloshing ions. Numerical results of NBI modeling for a stellarator-mirror hybrid are analyzed. The sloshing ions could alternatively be sustained by RF heating. Fast wave heating schemes, i.e. magnetic beach, minority and second harmonic heating, are addressed and their similarities and differences are described. Characteristic features of wave propagation in mirror hybrid devices including both fundamental harmonic minority and second harmonic heating are examined. Minority heating is efficient for a wide range of minority concentration and plasma densities; it allows one to place the antenna aside from the hot ion location. A simple-design strap antenna suitable for this has good performance. However, this scenario is appropriate only for light minority ions. The second harmonic heating can be applied for the heavy ion component. Arrangements are similar for minority and second harmonic heating. The efficiency of second harmonic heating is influenced by a weaker wave damping than for minority heating. Numerical calculations show that in a hybrid reactor scaled mirror machine the deuterium sloshing ions could be heated within the minority heating scheme, while the tritium ions could be sustained by second harmonic heating.

Moiseenko, V. E.; Agren, O. [Institute of Plasma Physics, National Science Center 'Kharkiv Institute of Physics and Technology', Akademichna St. 1, 61108 Kharkiv (Ukraine); Uppsala University, Angstroem Laboratory, Division of Electricity, Box 534, SE-75121 Uppsala (Sweden)

2012-06-19T23:59:59.000Z

322

Heat Stroke  

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

stress, from exertion or hot environments, places stress, from exertion or hot environments, places workers at risk for illnesses such as heat stroke, heat exhaustion, or heat cramps. Heat Stroke A condition that occurs when the body becomes unable to control its temperature, and can cause death or permanent disability. Symptoms â–  High body temperature â–  Confusion â–  Loss of coordination â–  Hot, dry skin or profuse sweating â–  Throbbing headache â–  Seizures, coma First Aid â–  Request immediate medical assistance. â–  Move the worker to a cool, shaded area. â–  Remove excess clothing and apply cool water to their body. Heat Exhaustion The body's response to an excessive loss of water and salt, usually through sweating. Symptoms â–  Rapid heart beat â–  Heavy sweating â–  Extreme weakness or fatigue â– 

323

Improving Motor and Drive System Performance  

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

drives. Energy-Efficient Electric Motors and Their Applications, 2nd Edition Author: Jordan, H.E. Publisher: Springer Description: Evaluates the energy savings potential of...

324

Advanced Electric Drive Vehicles ? A Comprehensive Education...  

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

D.C. tiarravt034ferdowsi2010o.pdf More Documents & Publications Advanced Electric Drive Vehicles A Comprehensive Education, Training, and Outreach Program Advanced...

325

Advanced Electric Drive Vehicles ? A Comprehensive Education...  

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

Meeting arravt034tiferdowsi2012o.pdf More Documents & Publications Advanced Electric Drive Vehicles A Comprehensive Education, Training, and Outreach Program Advanced...

326

Advanced Electric Drive Vehicles ? A Comprehensive Education...  

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

Evaluation arravt034tiferdowsi2011p.pdf More Documents & Publications Advanced Electric Drive Vehicles A Comprehensive Education, Training, and Outreach Program Advanced...

327

Advanced Electric Drive Vehicle Education Program  

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

Training Consortium (NAFTC), together with its partners, will develop an Advanced Electric Drive Vehicle Education Program that will help accelerate mass market introduction...

328

Electric Drive Vehicle Infrastructure Deployment | Department...  

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

Infrastructure Deployment Electric Drive Vehicle Infrastructure Deployment 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer...

329

Cone Drive Operations Inc | Open Energy Information  

Open Energy Info (EERE)

Cone Drive Operations Inc Place: Traverse City, Michigan Zip: 49684 Sector: Solar Product: US-based manufacturers of double enveloping worm gear technology. The company supplies...

330

Marketing & Driving Demand: Social Media Tools & Strategies ...  

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

Demand: Social Media Tools & Strategies - January 16, 2011 Marketing & Driving Demand: Social Media Tools & Strategies - January 16, 2011 January 16, 2011 Conference Call...

331

Marketing & Driving Demand Collaborative - Social Media Tools...  

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

Demand Collaborative - Social Media Tools & Strategies Marketing & Driving Demand Collaborative - Social Media Tools & Strategies Presentation slides from the BetterBuildings...

332

Collaboration drives achievement in protein structure research  

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

AlumniLink November 2014 Collaboration drives achievement in protein structure research Alumni Link: Opportunities, News and Resources for Former Employees Latest...

333

Optimal joule heating of the subsurface  

DOE Patents [OSTI]

A method for simultaneously heating the subsurface and imaging the effects of the heating is disclosed. This method combines the use of tomographic imaging (electrical resistance tomography or ERT) to image electrical resistivity distribution underground, with joule heating by electrical currents injected in the ground. A potential distribution is established on a series of buried electrodes resulting in energy deposition underground which is a function of the resistivity and injection current density. Measurement of the voltages and currents also permits a tomographic reconstruction of the resistivity distribution. Using this tomographic information, the current injection pattern on the driving electrodes can be adjusted to change the current density distribution and thus optimize the heating. As the heating changes conditions, the applied current pattern can be repeatedly adjusted (based on updated resistivity tomographs) to affect real time control of the heating.

Berryman, J.G.; Daily, W.D.

1994-07-05T23:59:59.000Z

334

Heat engine generator control system  

DOE Patents [OSTI]

An electrical power generation system includes a heat engine having an output member operatively coupled to the rotor of a dynamoelectric machine. System output power is controlled by varying an electrical parameter of the dynamoelectric machine. A power request signal is related to an engine speed and the electrical parameter is varied in accordance with a speed control loop. Initially, the sense of change in the electrical parameter in response to a change in the power request signal is opposite that required to effectuate a steady state output power consistent with the power request signal. Thereafter, the electrical parameter is varied to converge the output member speed to the speed known to be associated with the desired electrical output power.

Rajashekara, Kaushik (Carmel, IN); Gorti, Bhanuprasad Venkata (Towson, MD); McMullen, Steven Robert (Anderson, IN); Raibert, Robert Joseph (Fishers, IN)

1998-01-01T23:59:59.000Z

335

Heat engine generator control system  

DOE Patents [OSTI]

An electrical power generation system includes a heat engine having an output member operatively coupled to the rotor of a dynamoelectric machine. System output power is controlled by varying an electrical parameter of the dynamoelectric machine. A power request signal is related to an engine speed and the electrical parameter is varied in accordance with a speed control loop. Initially, the sense of change in the electrical parameter in response to a change in the power request signal is opposite that required to effectuate a steady state output power consistent with the power request signal. Thereafter, the electrical parameter is varied to converge the output member speed to the speed known to be associated with the desired electrical output power. 8 figs.

Rajashekara, K.; Gorti, B.V.; McMullen, S.R.; Raibert, R.J.

1998-05-12T23:59:59.000Z

336

Alpha Channeling in Mirror Machines  

SciTech Connect (OSTI)

Because of their engineering simplicity, high-?, and steady-state operation, mirror machines and related open-trap machines such as gas dynamic traps, are an attractive concept for achieving controlled nuclear fusion. In these open-trap machines, the confinement occurs by means of magnetic mirroring, without the magnetic field lines closing upon themselves within the region of particle confinement. Unfortunately, these concepts have not achieved to date very spectacular laboratory results, and their reactor prospects are dimmed by the prospect of a low Q-factor, the ratio of fusion power produced to auxiliary power. Nonetheless, because of its engineering promise, over the years numerous improvements have been proposed to enhance the reactor prospects of mirror fusion, such as tandem designs, end-plugging, and electric potential barriers.

Fisch N.J.

2005-10-19T23:59:59.000Z

337

Ferrite permanent magnet electrical machine and the application thereof within vehicle traction drives  

SciTech Connect (OSTI)

This patent describes, in combination, a land vehicle having axially aligned ground engaging tractive wheels, and a drivetrain carried by the vehicle for the propulsion thereof. The drivetrain comprises: (a) a substantially fixed DC power source including at least one chemical battery, (b) transmission means including selectable multiple gear ratios, an input shaft and a mechanical differential operative to transfer torque to the wheels, (c) a single-phase self-synchronous permanent magnet motor including, (i) an elongated central shaft, (ii) a generally u-shaped frame assembly adapted for mechanical grounding the shaft to a relatively stationary portion of the vehicle, the shaft being secured to the frame proximate each end thereof, (iii) a stator assembly secured to the shaft and characterized by a plurality of outwardly directed integrally formed salient poles and associated bifilar-wound induction coils, and (iv) a rotor assembly rotatably disposed on the shaft and substantially enclosing the stator assembly, the rotor assembly comprising a cylindrical shell defining an inner surface.

Gritter, D.J.; O'Neil, W.K.; Turner, D.

1987-03-17T23:59:59.000Z

338

Improving the Efficiency of Die Casting Machine Hydraulic Systems with the Retrofit of Adjustable Frequency Drives  

E-Print Network [OSTI]

because there is typically no way to limit the hydraulic capacity during periods of low demand. As a result, fluid is throttled to lower pressures and excess fluid flow is routed directly back to the system reservoir, wasting motor energy and increasing...

Ambs, L.; Kosanovic, D.; Edberg, C.

339

Low-Cost Single-Phase Powered Induction Machine Drive for Residential Applications  

E-Print Network [OSTI]

, and lifetime. Keywords-induction motor; harmonic elimination; power factor correction; efficiency; low cost of the motors are less than 1 hp in size, and account for approximately 10% of the electricity consumed by the electric motor population [1]. These fractional horsepower motors are primarily single- phase induction

Chapman, Patrick

340

/ www.sciencexpress.org / 28 January 2010 / Page 1 / 10.1126/science.1185634 Indirect-drive hohlraum experiments at the National  

E-Print Network [OSTI]

the laser power distribution in the hohlraum producing symmetric x-ray drive as inferred from the shape as radiation enclosures that convert the optical laser light into soft x-rays that are characterized at unprecedented laser drive energies of 0.7 MJ. 192 simultaneously fired laser beams heat ignition emulate

Note: This page contains sample records for the topic "heating machine drive" 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

Hydroxide absorption heat pumps with spray absorber  

SciTech Connect (OSTI)

The absorber is one of the most expensive components of an absorption heat pump or chiller, respectively. In order to reduce the cost of a heat exchanger, much effort is invested into searching for additives for heat transfer enhancement. Another way to reduce heat exchanger cost, especially for machines with low capacities, is to use an adiabatic spray absorber. The basic principles of the spray absorber is to perform heat and mass transfer separated from each other in two different components. In this way the heat can be rejected effectively in a liquid-liquid heat exchanger, whereas the mass transfer occurs subsequently in a simple vessel. The spray technique can not only save heat exchanger cost in conventional absorption systems working with water and lithium bromide, it also allows the use of quite different working fluids such as hydroxides, which have lower heat transfer coefficients in falling films. Moreover, the separated heat transfer can easily be performed in a liquid-to-air heat exchanger. Hence it is obvious to use hydroxides that allow for a high temperature lift for building an air-cooled chiller with spray absorber. In this presentation theoretical and experimental investigations of the spray absorber as well as the setup will be described. Finally, possible applications will be outlined.

Summerer, F.; Alefeld, G. [Technische Univ. Muenchen, Munich (Germany). Physics Dept.; Zeigler, F.; Riesch, P. [Bayerisches Zentrum fuer Angewandte Energieforschung, Munich (Germany)

1996-11-01T23:59:59.000Z

342

System studies of rf current drive for MST  

SciTech Connect (OSTI)

Two rf schemes are being studied on the MST reversed field pinch for their potential in current profile control experiments. MHD modeling has shown that a substantial externally-driven off axis parallel current can improve stability of the dominant core tearing modes. A radially localized axisymmetric population of fast electrons has been observed by SXR emission during LH injection (100kW at 800MHz), and is consistent with CQL3D modeling which predicts a small driven current. Computational work suggests that doubling the input power will statistically improve the LH-induced SXR signal to background ratio, and that about 2MW of injected power (an order of magnitude increase) will drive enough current for stabilization of tearing modes. Additionally, a 1 MW 5.5 GHz electron Bernstein wave (EBW) experiment is under construction, which utilizes a very simple and compact antenna compatible with the demands of the RFP. EBW allows access to electron cyclotron heating and current drive in the overdense plasma. Coupling of the external electromagnetic wave to the EBW has been demonstrated, and initial tests at {approx}100kW power have produced a small, localized xray flux consistent with rf heating and high diffusivity of fast electrons. Computational work is currently underway to answer the very important questions of how much power is required, and what level of electron diffusivity is tolerable, to generate a consequential amount of EBW current.

Anderson, J. K.; Burke, D. R.; Forest, C. B.; Goetz, J. A.; Hendries, E. R.; Seltzman, A. H.; Thomas, M. A. [Department of Physics, University of Wisconsin, Madison, WI (United States); Diem, S. [Oak Ridge National Laboratory, Oak Ridge TN (United States); Harvey, R. W. [CompX, Del Mar, CA (United States); Kaufman, M. C. [Department of Physics, University of Wisconsin, Madison, WI (United States); Oak Ridge National Laboratory, Oak Ridge, TN (United States)

2011-12-23T23:59:59.000Z

343

Cooling by heating  

E-Print Network [OSTI]

We introduce the idea of actually cooling quantum systems by means of incoherent thermal light, hence giving rise to a counter-intuitive mechanism of "cooling by heating". In this effect, the mere incoherent occupation of a quantum mechanical mode serves as a trigger to enhance the coupling between other modes. This notion of effectively rendering states more coherent by driving with incoherent thermal quantum noise is applied here to the opto-mechanical setting, where this effect occurs most naturally. We discuss two ways of describing this situation, one of them making use of stochastic sampling of Gaussian quantum states with respect to stationary classical stochastic processes. The potential of experimentally demonstrating this counter-intuitive effect in opto-mechanical systems with present technology is sketched.

A. Mari; J. Eisert

2011-04-01T23:59:59.000Z

344

Mobile machine hazardous working zone warning system  

DOE Patents [OSTI]

A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine. 3 figs.

Schiffbauer, W.H.; Ganoe, C.W.

1999-08-17T23:59:59.000Z

345

Mobile machine hazardous working zone warning system  

DOE Patents [OSTI]

A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation thereof. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine.

Schiffbauer, William H. (Connellsville, PA); Ganoe, Carl W. (Pittsburgh, PA)

1999-01-01T23:59:59.000Z

346

Cooling system for rotating machine  

DOE Patents [OSTI]

An electrical machine comprising a rotor is presented. The electrical machine includes the rotor disposed on a rotatable shaft and defining a plurality of radial protrusions extending from the shaft up to a periphery of the rotor. The radial protrusions having cavities define a fluid path. A stationary shaft is disposed concentrically within the rotatable shaft wherein an annular space is formed between the stationary and rotatable shaft. A plurality of magnetic segments is disposed on the radial protrusions and the fluid path from within the stationary shaft into the annular space and extending through the cavities within the radial protrusions.

Gerstler, William Dwight (Niskayuna, NY); El-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Lokhandwalla, Murtuza (Clifton Park, NY); Alexander, James Pellegrino (Ballston Lake, NY); Quirion, Owen Scott (Clifton Park, NY); Palafox, Pepe (Schenectady, NY); Shen, Xiaochun (Schenectady, NY); Salasoo, Lembit (Schenectady, NY)

2011-08-09T23:59:59.000Z

347

CRAD, Machine Shop Safe Operations Assessment Plan | Department...  

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

Machine Shop Safe Operations Assessment Plan CRAD, Machine Shop Safe Operations Assessment Plan Performance Objective: The purpose of this assessment is to verify that machine shop...

348

Machine Tool Design and Operation Strategies for Green Manufacturing  

E-Print Network [OSTI]

Power Demand of Precision Machine Tools, MS Thesis, Dept.Environmental Burden for Machine Tool Operation, JSME Int.of Downsized Design for Machine Tools on the Environmental

2010-01-01T23:59:59.000Z

349

Machine Learning for Humanoid Robot Modeling and Control /  

E-Print Network [OSTI]

Face . . . . . . . . . . . 1.2 Machine Learning ApproachesInternational Conference on Machine Learning (ICML), 2011. [hands. ICRA 2013, 2013. [40] Machine Perception Laboratory.

Wu, Tingfan

2013-01-01T23:59:59.000Z

350

Parallel machine match-up scheduling with manufacturing cost considerations  

E-Print Network [OSTI]

approach for the single machine scheduling problem. Journaldecisions on parallel CNC machines: -constraint approach.mechanism for the CNC machine scheduling problems with

Aktürk, M. Selim; Atamtürk, Alper; Gürel, Sinan

2010-01-01T23:59:59.000Z

351

Rage against the machines: how subjects play against learning algorithms  

E-Print Network [OSTI]

B. : Rage against the machines—How Subjects Learn to PlayARTICLE Rage against the machines: how subjects play againsterror. Rage against the machines representative of real

Duersch, Peter; Kolb, Albert; Oechssler, Jörg; Schipper, Burkhard C.

2010-01-01T23:59:59.000Z

352

Electrically heated particulate filter embedded heater design  

DOE Patents [OSTI]

An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine and wherein an upstream surface of the particulate filter includes machined grooves. A grid of electrically resistive material is inserted into the machined grooves of the exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF.

Gonze, Eugene V.; Chapman, Mark R.

2014-07-01T23:59:59.000Z

353

Comparative Assessment of Direct Drive High Temperature Superconducting Generators in Multi-Megawatt Class Wind Turbines  

SciTech Connect (OSTI)

This paper summarizes the work completed under the CRADA between NREL and American Superconductor (AMSC). The CRADA combined NREL and AMSC resources to benchmark high temperature superconducting direct drive (HTSDD) generator technology by integrating the technologies into a conceptual wind turbine design, and comparing the design to geared drive and permanent magnet direct drive (PMDD) wind turbine configurations. Analysis was accomplished by upgrading the NREL Wind Turbine Design Cost and Scaling Model to represent geared and PMDD turbines at machine ratings up to 10 MW and then comparing cost and mass figures of AMSC's HTSDD wind turbine designs to theoretical geared and PMDD turbine designs at 3.1, 6, and 10 MW sizes. Based on the cost and performance data supplied by AMSC, HTSDD technology has good potential to compete successfully as an alternative technology to PMDD and geared technology turbines in the multi megawatt classes. In addition, data suggests the economics of HTSDD turbines improve with increasing size, although several uncertainties remain for all machines in the 6 to 10 MW class.

Maples, B.; Hand, M.; Musial, W.

2010-10-01T23:59:59.000Z

354

Simulations of Quantum Turing Machines by Quantum Multi-Stack Machines  

E-Print Network [OSTI]

As was well known, in classical computation, Turing machines, circuits, multi-stack machines, and multi-counter machines are equivalent, that is, they can simulate each other in polynomial time. In quantum computation, Yao [11] first proved that for any quantum Turing machines $M$, there exists quantum Boolean circuit $(n,t)$-simulating $M$, where $n$ denotes the length of input strings, and $t$ is the number of move steps before machine stopping. However, the simulations of quantum Turing machines by quantum multi-stack machines and quantum multi-counter machines have not been considered, and quantum multi-stack machines have not been established, either. Though quantum counter machines were dealt with by Kravtsev [6] and Yamasaki {\\it et al.} [10], in which the machines count with $0,\\pm 1$ only, we sense that it is difficult to simulate quantum Turing machines in terms of this fashion of quantum computing devices, and we therefore prove that the quantum multi-counter machines allowed to count with $0,\\pm 1,\\pm 2,...,\\pm n$ for some $n>1$ can efficiently simulate quantum Turing machines. Therefore, our mail goals are to establish quantum multi-stack machines and quantum multi-counter machines with counts $0,\\pm 1,\\pm 2,...,\\pm n$ and $n>1$, and particularly to simulate quantum Turing machines by these quantum computing devices.

Daowen Qiu

2005-06-06T23:59:59.000Z

355

OUTCOMES FROM THE FRENCH NATIONAL PROJECT DRIVE  

E-Print Network [OSTI]

OUTCOMES FROM THE FRENCH NATIONAL PROJECT DRIVE EXPERIMENTAL DATA FOR THE EVALUATION OF HYDROGEN with success a project called DRIVE to the National Research Agency. This project aims at providing procedures and technologies will provide only limited guidance for hydrogen-powered vehicles. That is because

Paris-Sud XI, Université de

356

METHODS OF RADIO-FREQUENCY CURRENT DRIVE  

E-Print Network [OSTI]

METHODS OF RADIO-FREQUENCY CURRENT DRIVE N. J. FISCH* Princeton Plasma Physics Laboratory-670 Radio-frequency waves can penetrate thermonuclear plasmas, depositing momentum and energy with great. INTRODUCTION Using radio-frequency (rf) waves to drive the toroidal current in tokamak reactors is attractive

357

Driving Innovation A Satellite Applications TIC  

E-Print Network [OSTI]

Driving Innovation A Satellite Applications TIC 8 December 2011 Michael Lawrence Head of Special Projects #12;Driving Innovation SatApps TIC - goal `generating growth across the economy through new satellite enabled business' · Note : overall TIC strategy goal ­ accelerating the commercialisation

358

Courtyard Hanover Lebanon 10 Morgan Drive  

E-Print Network [OSTI]

· Boston Logan International Airport (BOS) Airport Phone:1-800-235-6426 Hotel direction: 111 mile for persons with disabilities· #12;Driving Directions from Airport Lebanon Municipal Airport (LEB) Airport Phone:1-603-298-8878 Hotel direction: 4 mile(s) S Driving directions:From Lebanon Airport to the hotel

Myers, Lawrence C.

359

Electric top drives gain wide industry acceptance  

SciTech Connect (OSTI)

Since its introduction, the top drive drilling system has gained acceptance as a productive and safe method for drilling oil and gas wells. Originally, the system was used mostly for offshore and higher cost land drilling, and it had to be installed as a permanent installation because of its enormous weight and size. Essentially, a top drive replaces the kelly and rotary table as the means of rotating drillpipe on oil, gas and geothermal rigs and is considered to be 15% to 40% more efficient than a kelly drive. Top drive systems allow the operator to drill and maintain directional orientation for triple stands and provide tripping efficiency because of the ability to ream and circulate with triple stands, to reduce the risk of stuck pipe or lost wells, and to improve well control and pipe handling safety. The paper describes electric top drives with DC motors, top drives with AC motors, top drives with permanent magnet motors, and top drives with permanent magnet brushless synchronous motors.

Riahi, M.L.

1998-05-01T23:59:59.000Z

360

Gas Mileage Tips - Driving More Efficiently  

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

Driving More Efficiently Driving More Efficiently Personalize Fuel Prices Select the fuel type and enter your fuel price to personalize savings estimates. Regular Midgrade Premium Diesel E85 CNG LPG $ 3.33 /gal Save My Prices Use Default Prices Click "Save My Prices" to apply your prices to other pages, or click "Use Default Prices" use national average prices. Drive Sensibly frustrated driver Aggressive driving (speeding, rapid acceleration and braking) wastes gas. It can lower your gas mileage by 33% at highway speeds and by 5% around town. Sensible driving is also safer for you and others, so you may save more than gas money. Fuel Economy Benefit: 5%-33% Equivalent Gasoline Savings: $0.17-$1.10/gallon Observe the Speed Limit (New Information) Graph showing MPG decreases rapidly at speeds above 50 mph

Note: This page contains sample records for the topic "heating machine drive" 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

Electrifying Your Drive | Department of Energy  

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

Electrifying Your Drive Electrifying Your Drive Electrifying Your Drive April 27, 2010 - 7:30am Addthis Shannon Brescher Shea Communications Manager, Clean Cities Program For anyone who grew up watching The Jetsons (or Back to the Future, depending on your generation), the "Car of the Future!" flew through the skies with the greatest of ease. Although most of us have given up on our hopes of a flying car, anything beyond the internal combustion engine has seemed hopelessly out of reach until recently. However, with several manufacturers planning on producing plug-in and all-electric vehicles, the Car of the Future will be available soon! But before you put down a deposit, it's helpful to understand the different types of electric drive technologies. The most basic form of electric drive

362

Electrifying Your Drive | Department of Energy  

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

Electrifying Your Drive Electrifying Your Drive Electrifying Your Drive April 27, 2010 - 7:30am Addthis Shannon Brescher Shea Communications Manager, Clean Cities Program For anyone who grew up watching The Jetsons (or Back to the Future, depending on your generation), the "Car of the Future!" flew through the skies with the greatest of ease. Although most of us have given up on our hopes of a flying car, anything beyond the internal combustion engine has seemed hopelessly out of reach until recently. However, with several manufacturers planning on producing plug-in and all-electric vehicles, the Car of the Future will be available soon! But before you put down a deposit, it's helpful to understand the different types of electric drive technologies. The most basic form of electric drive

363

Adjustable Speed Drive Study, Part 2.  

SciTech Connect (OSTI)

Advances in speed control for motors in recent years, notably those in power electronics, have widened the range of application for several adjustable speed drive (ASD) types to include the smaller horsepower sizes. The DC motor drive, formerly in almost universal use for speed control, is being challenged by the high efficiency induction motor/pulse width modulation (PWM) drive; and for special small horsepower size applications, by the permanent magnet motor/PWM inverter drive or by the switched reluctance motor drive. The main characteristics of the several ASD types suitable for small horsepower size applications are discussed, as well as their unwanted side effects: poor power factor, harmonic distortion of the supply, acoustic noise, and electromagnetic interference. A procedure is recommended for determining which, if any, ASD to use.

Wallace, Alan K.; Oregon State University. Dept. of Electrical and Computer Engineering.

1989-08-01T23:59:59.000Z

364

Adjustable Speed Drive Study, Part 1.  

SciTech Connect (OSTI)

Advances in speed control for motors in recent years, notably those in power electronics, have widened the range of application for several adjustable speed drive (ASD) types to include the smaller horsepower sizes. The dc motor drive, formerly in almost universal use for speed control, is being challenged by the high efficiency induction motor/pulse width modulation (PWM) drive; and for special small horsepower size applications, by the permanent magnet motor/PWM inverter drive or by the switched reluctance motor drive. The main characteristics of the several ASD types suitable for small horsepower size applications are discussed, as well as their unwanted side effects: poor power factor, harmonic distortion of the supply, acoustic noise, and electromagnetic interference. A procedure is recommended for determining which, if any, ASD to use. 31 figs., 6 tabs.

Wallace, Alan K.; Oregon State University. Dept. of Electrical and Computer Engineering.

1989-08-01T23:59:59.000Z

365

Drilling of wells with top drive unit  

SciTech Connect (OSTI)

Well drilling apparatus including a top drive drilling assembly having a motor driven stem adapted to be attached to the upper end of a drill string and drive it during a drilling operation, a torque wrench carried by the top drive assembly and movable upwardly and downwardly therewith and operable to break a threated connection between the drill string and the stem, and an elevator carried by and suspended from the top drive assembly and adapted to engage a section of drill pipe beneath the torque wrench in suspending relation. The torque wrench and elevator are preferably retained against rotation with the rotary element which drives the drill string, but may be movable vertically relative to that rotary element and relative to one another in a manner actuating the apparatus between various different operating conditions.

Boyadjieff, G.I.

1984-05-22T23:59:59.000Z

366

Machine translation of Arabic dialects  

Science Journals Connector (OSTI)

Arabic Dialects present many challenges for machine translation, not least of which is the lack of data resources. We use crowdsourcing to cheaply and quickly build Levantine-English and Egyptian-English parallel corpora, consisting of 1.1M words and ...

Rabih Zbib; Erika Malchiodi; Jacob Devlin; David Stallard; Spyros Matsoukas; Richard Schwartz; John Makhoul; Omar F. Zaidan; Chris Callison-Burch

2012-06-01T23:59:59.000Z

367

Description of the Scenario Machine  

E-Print Network [OSTI]

We present here an updated description of the "Scenario Machine" code. This tool is used to carry out a population synthesis of binary stars. Previous version of the description can be found at http://xray.sai.msu.ru/~mystery//articles/review/contents.html

V. M. Lipunov; K. A. Postnov; M. E. Prokhorov; A. I. Bogomazov

2007-04-11T23:59:59.000Z

368

Polar Warnings A Lifelike Machine  

E-Print Network [OSTI]

States conducted its last underground nuclear test in 1992 and turned to Los Alamos and the other weapons Certification without Testing LOS ALAMOS DELIVERS THE FIRST NUCLEAR TRIGGER IN 20 YEARS A Lifelike Machine laboratories for a new approach to ensuring the continued safety and reliability of its nuclear deterrent

369

The Advantages of Sealless Pumps in Heat Transfer Fluid Services  

E-Print Network [OSTI]

THE ADV ANTAGES OF SEALLESS PUMPS IN HEAT TRANSFER FLUID SERVICES Michael D. Smith Engineering Manager Sundstrand Fluid Handling Arvada, CO ABSTRACT The expectations for heat transfer fluid (HTF) system safety and reliability... of the issues which challenge mechanical seals. In addition, one type of sealless pump, the canned motor pump, raises the thermal efficiency of HTF systems. Waste heat from the drive motors of m'ost pumps is dissipated to the air. A shaft driven fan wastes...

Smith, M. D.

370

A 150-Ton Universal Structure Testing Machine  

Science Journals Connector (OSTI)

... 150-ton universal structure testing machine for Short Bros, and Harland, Ltd. (Engineer, December 26, pp. 594–596). ...

C. F. TIPPER

1948-04-24T23:59:59.000Z

371

TEHNOMUS -New Technologies and Products in Machine Manufacturing Technologies (1) CMM : coordinate measuring machine  

E-Print Network [OSTI]

TEHNOMUS - New Technologies and Products in Machine Manufacturing Technologies (1) CMM : coordinate measuring machine - 1 - COMPARISON OF A MACHINE OF MEASUREMENT WITHOUT CONTACT AND A CMM(1) : OPTIMIZATION products, the process of measurement usually proceeds on a type of machine (for example CMM

Paris-Sud XI, Université de

372

Increasing efficiency of data mining systems by machine unification and double machine cache  

E-Print Network [OSTI]

Increasing efficiency of data mining systems by machine unification and double machine cache and in general data mining systems, we need to search through huge spaces of machine learn- ing algorithms. Meta-learning and other complex data mining approaches need to train and test thousands of learning machines while

Jankowski, Norbert

373

Signal machines : localization of isolated accumulation Signal machines : localization of isolated  

E-Print Network [OSTI]

Signal machines : localization of isolated accumulation Signal machines : localization of isolated'Orléans, Orléans, FRANCE 6 mars 2011 Journées Calculabilités Paris 1 / 39 #12;Signal machines : localization of isolated accumulation 1 Signal machines and isolated accumulations 2 Necessary conditions

Durand-Lose, Jérôme

374

Method and apparatus for monitoring machine performance  

DOE Patents [OSTI]

Machine operating conditions can be monitored by analyzing, in either the time or frequency domain, the spectral components of the motor current. Changes in the electric background noise, induced by mechanical variations in the machine, are correlated to changes in the operating parameters of the machine.

Smith, Stephen F. (Loudon, TN); Castleberry, Kimberly N. (Harriman, TN)

1996-01-01T23:59:59.000Z

375

Photogrammetry & Machine Vision 1. Image sensors  

E-Print Network [OSTI]

Photogrammetry & Machine Vision 1. Image sensors (a) Fundamentals of image sensors (b) CCD image'Apuzzo Photogrammetry and Machine Vision - 3 Point cloud processing, surface generation, texturing (b) Camera, noise) 2N. D'Apuzzo Photogrammetry and Machine Vision - 3 Point cloud processing, surface generation

Giger, Christine

376

Task and Machine Heterogeneities: Higher Moments Matter  

E-Print Network [OSTI]

Task and Machine Heterogeneities: Higher Moments Matter Abdulla M. Al-Qawasmeh 1 , Anthony A.potter}@colostate.edu jtsmith@digitalglobe.com Abstract - One type of heterogeneous computing (HC) systems consists of machines in this matrix represents the ETC of a specific task on a specific machine when executed exclusively. Heuristics

Maciejewski, Anthony A.

377

Photogrammetry & Machine Vision 1. Image sensors  

E-Print Network [OSTI]

Photogrammetry & Machine Vision 1. Image sensors (a) Fundamentals of image sensors (b) CCD image. Remondino, N. D'Apuzzo Photogrammetry and Machine Vision ­ 1. Measurement in images (b) Camera calibration of Photogrammetry and Machine Vision Fully understand: 1. Image based 3D and 4D measurement 2. Image based 3D

Giger, Christine

378

Photogrammetry & Machine Vision 1. Image sensors  

E-Print Network [OSTI]

Photogrammetry & Machine Vision 1. Image sensors (a) Fundamentals of image sensors (b) CCD image. Remondino, N. D'Apuzzo Photogrammetry and Machine Vision ­ 2. Camera calibration and orientation (b) Camera and Machine Vision ­ 2. Camera calibration and orientation (b) Calibration methods (reference object, point

Giger, Christine

379

Virtual Machine Monitors 36.1 Introduction  

E-Print Network [OSTI]

36 Virtual Machine Monitors 36.1 Introduction Years ago, IBM sold mainframes to large organizations, and a problem arose: what if the organization wanted to run different operating systems on the machine? (some yet another level of indirection in the form of a virtual machine monitor, or VMM or just monitor

Sheridan, Jennifer

380

Lean Green Skating Machine Report No. 1  

E-Print Network [OSTI]

Lean Green Skating Machine Report No. 1 Lean Green Skating Machine Report No. 1 Submitted by Simon Page 1 of 19 DISTRIBUTION STATEMENT: Distribution authorized to all. #12;Lean Green Skating Machine Report No. 1 Page 2 of 19 DISTRIBUTION STATEMENT: Distribution authorized to all. #12;Lean Green Skating

Levi, Anthony F. J.

Note: This page contains sample records for the topic "heating machine drive" 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

Final Report "LAB-SCALE SNOWMAKING MACHINE"  

E-Print Network [OSTI]

Machine 19 Cost Comparison of Carbon Dioxide and Liquid Nitrogen 26 Effects of Input Parameters on Snow snow making machine. The machine uses liquid nitrogen to freeze atomized particles of water with an efficiency of 1.3 pounds of nitrogen per pound of snow. Snow density varies between 20 and 30 lbm/ft3

382

SOVIETS BUILD MACHINES TO PRODUCE KRILL PASTE'  

E-Print Network [OSTI]

EUROPE SOVIETS BUILD MACHINES TO PRODUCE KRILL PASTE' The Soviet Federal Research Institute of Fisheries and Oceanography ( V N I R 0) has built machines for production of a protein- rich paste from protein paste from Black Sea shrimp. Each machine, operated by 2 people, has a processing capacity of 1

383

Computational equivalence between quantum Turing machines  

E-Print Network [OSTI]

Computational equivalence between quantum Turing machines and quantum circuit families Christian Westergaard 21st November 2005 Contents 1 The quantum Turing machine model 5 1.1 Basics of quantum Turing machines . . . . . . . . . . . . . . . . . . . 5 1.2 Projections on the quantum state space

Møller, Jesper Michael

384

Batch Scheduling with Deadlines on Parallel Machines  

E-Print Network [OSTI]

Batch Scheduling with Deadlines on Parallel Machines Peter Brucker Mikhail Y. Kovalyov, Yakov M of scheduling G groups of jobs on m parallel machines is considered. Each group consists of several identical) and to schedule the batches on the machines. It is possible for different batches of the same group

Magdeburg, Universität

385

Technical Report No. 2006510 ACCELERATING MACHINES \\Lambda  

E-Print Network [OSTI]

Technical Report No. 2006­510 ACCELERATING MACHINES \\Lambda Robert Fraser and Selim G. Akl School Abstract This paper presents an overview of accelerating machines. We begin by exploring the history of the accelerating machine model and the potential power that it provides. We look at some of the problems that could

Graham, Nick

386

Abstract AndParallel Machines Nachum Dershowitz  

E-Print Network [OSTI]

Abstract And­Parallel Machines Nachum Dershowitz University of Illinois Urbana, IL 61801 U are introduced. The first of them, the And­ Parallel Turing Machine, can be viewed as a generalization of the deterministic Turing machine in which the infinite tape is replaced by an infinite tree­like tape on which

Dershowitz, Nachum

387

BUILDING INFINITE MACHINES E.B. Davies  

E-Print Network [OSTI]

BUILDING INFINITE MACHINES E.B. Davies an infinite computing machine within a continuous Newtonian universe. The relevance of our construction* * to do it, [6, 9]. In section 4 we discuss why our machine is not in conflict with standard impos* *si

Davies, Brian

388

Toolbox Safety Talk Machine Shop Safety  

E-Print Network [OSTI]

Toolbox Safety Talk Machine Shop Safety Environmental Health & Safety Facilities Safety & Health to Environmental Health & Safety for recordkeeping. Machine shops are an integral part of the Cornell University be taken seriously. Many of the most frequently cited OSHA safety standards pertain to machine safeguarding

Pawlowski, Wojtek

389

Nano-Machines Achieve Huge Mechanical Breakthrough  

E-Print Network [OSTI]

NANO TECH Nano-Machines Achieve Huge Mechanical Breakthrough Dublin, Ireland (SPX) Sep 08, 2005 that use molecular 'nano'-machines of this kind to help perform physical tasks. Nano-machines could also owners set to return to battered Orleans l Six dead, two missing after heavy rains hit Page 1 of 3Nano

Leigh, David A.

390

A Novel Current Angle Control Scheme in a Current Source Inverter Fed Permanent Magnet Synchronous Motor Drive for Automotive Applications  

SciTech Connect (OSTI)

This paper describes a novel speed control scheme to operate a current source inverter (CSI) driven surface-mounted permanent magnet synchronous machine (SPMSM) for hybrid electric vehicles (HEVs) applications. The idea is to use the angle of the current vector to regulate the rotor speed while keeping the two dc-dc converter power switches on all the time to boost system efficiency. The effectiveness of the proposed scheme was verified with a 3 kW CSI-SPMSM drive prototype.

Tang, Lixin [ORNL] [ORNL; Su, Gui-Jia [ORNL] [ORNL

2011-01-01T23:59:59.000Z

391

Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Efficient Driving Efficient Driving Behaviors to Conserve Fuel to someone by E-mail Share Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel on Facebook Tweet about Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel on Twitter Bookmark Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel on Google Bookmark Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel on Delicious Rank Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel on Digg Find More places to share Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel on AddThis.com... More in this section... Idle Reduction Parts & Equipment Maintenance Driving Behavior Management Strategies

392

Electrochemical and Electro-Discharge Machining with a Threshold Current  

Science Journals Connector (OSTI)

......machining and electro-discharge machining of a metal...problems in which the electric potential satisfies...ECM), electro-discharge machining (EDM...method of electrochemical arc machining (ECAM...depending upon the local electric current density. In......

A. A. LACEY; M. SHILLOR

1987-01-01T23:59:59.000Z

393

Work-Measuring Machines1  

Science Journals Connector (OSTI)

... belt passes over from the driving wheel of a prime-mover such as a steam-engine to the pulley of a dynamo which is being driven. One half of the ... to a strong pull, the other is relatively slack. Then if we could introduce spring balances into the two parts of the belt, and if we could read the ...

1884-07-03T23:59:59.000Z

394

Specimen coordinate automated measuring machine/fiducial automated measuring machine  

SciTech Connect (OSTI)

The Specimen coordinate Automated Measuring Machine (SCAMM) and the Fiducial Automated Measuring Machine (FAMM) is a computer controlled metrology system capable of measuring length, width, and thickness, and of locating fiducial marks. SCAMM and FAMM have many similarities in their designs, and they can be converted from one to the other without taking them out of the hot cell. Both have means for: supporting a plurality of samples and a standard; controlling the movement of the samples in the +/- X and Y directions; determining the coordinates of the sample; compensating for temperature effects; and verifying the accuracy of the measurements and repeating as necessary. SCAMM and FAMM are designed to be used in hot cells.

Hedglen, Robert E. (Bethel Park, PA); Jacket, Howard S. (Pittsburgh, PA); Schwartz, Allan I. (Turtle Creek, PA)

1991-01-01T23:59:59.000Z

395

Installation considerations for IGBT AC drives  

SciTech Connect (OSTI)

In the last four years, Adjustable Speed ac Drive (ASD) manufacturers have migrated from Bipolar Junction Transistor (BJT) semiconductors to Insulated Gate Bipolar Transistors (IGBTs) as the preferred Output switching device. The advantage of IGBTs over BJTs is that device rise and fall time switching capability is 5 - 10 times faster, resulting in lower device switching loss and a more efficient drive. However, for a similar motor cable length as the BJT drive, the faster output voltage risetime of the IGBT drive may increase the dielectric voltage stress on the motor and cable due to a phenomenon called reflected wave. Faster output dv/dt transitions of IGBT drives also increase the possibility for phenomenon such as increased Common Mode (CM) electrical noise, Electromagnetic Interference (EMI) problems and increased capacitive cable charging current problems. Also, recent experience suggests any Pulse Width Modulated (PWM) drive with a steep fronted output voltage wave form may increase motor shaft voltage and lead to a bearing current phenomenon known as fluting. This paper provides a basic understanding of these issues, as well as solutions, to insure a successful drive system installation.

Skibinski, G.L.

1997-06-01T23:59:59.000Z

396

A high-fidelity harmonic drive model.  

SciTech Connect (OSTI)

In this paper, a new model of the harmonic drive transmission is presented. The purpose of this work is to better understand the transmission hysteresis behavior while constructing a new type of comprehensive harmonic drive model. The four dominant aspects of harmonic drive behavior - nonlinear viscous friction, nonlinear stiffness, hysteresis, and kinematic error - are all included in the model. The harmonic drive is taken to be a black box, and a dynamometer is used to observe the input/output relations of the transmission. This phenomenological approach does not require any specific knowledge of the internal kinematics. In a novel application, the Maxwell resistive-capacitor hysteresis model is applied to the harmonic drive. In this model, sets of linear stiffness elements in series with Coulomb friction elements are arranged in parallel to capture the hysteresis behavior of the transmission. The causal hysteresis model is combined with nonlinear viscous friction and spectral kinematic error models to accurately represent the harmonic drive behavior. Empirical measurements are presented to quantify all four aspects of the transmission behavior. These measurements motivate the formulation of the complete model. Simulation results are then compared to additional measurements of the harmonic drive performance.

Preissner, C.; Royston, T. J.; Shu, D. (APS Engineering Support Division); ( MCS); (Univ. of Illinois)

2012-01-01T23:59:59.000Z

397

Chapter 18: Variable Frequency Drive Evaluation Protocol  

SciTech Connect (OSTI)

An adjustable-speed drive (ASD) includes all devices that vary the speed of a rotating load, including those that vary the motor speed and linkage devices that allow constant motor speed while varying the load speed. The Variable Frequency Drive Evaluation Protocol presented here addresses evaluation issues for variable-frequency drives (VFDs) installed on commercial and industrial motor-driven centrifugal fans and pumps for which torque varies with speed. Constant torque load applications, such as those for positive displacement pumps, are not covered by this protocol. Other ASD devices, such as magnetic drive, eddy current drives, variable belt sheave drives, or direct current motor variable voltage drives, are also not addressed. The VFD is by far the most common type of ASD hardware. With VFD speed control on a centrifugal fan or pump motor, energy use follows the affinity laws, which state that the motor electricity demand is a cubic relationship to speed under ideal conditions. Therefore, if the motor runs at 75% speed, the motor demand will ideally be reduced to 42% of full load power; however, with other losses it is about 49% of full load power.

Romberger, J.

2014-11-01T23:59:59.000Z

398

Aggregation method for motor drive systems  

Science Journals Connector (OSTI)

Abstract When many variable frequency drives are connected to a common switchboard, their aggregated effect on system dynamics can be significant. In this paper, the aggregation method for variable frequency drives and their motors in industrial facilities is proposed, which is suitable for power systems dynamic studies. The proposed method can be applied to various types of motor drive systems. There are two steps involved for the proposed aggregation method: (1) aggregate motor drive systems connected to the same bus, and (2) further combine the aggregated model of motor drive systems from Step 1 with upstream series impedance and/or transformers. Due to involvement of high-order transfer functions in dynamic models of individual motor drive systems, Pade approximation is used as a useful tool in the aggregation process. Using the proposed aggregation method, an equivalent aggregated dynamic model of motor drive systems can be obtained at the substation bus. A case study is conducted in the paper, and the proposed aggregation method is verified to be effective by the case study.

Xiaodong Liang; Wilsun Xu

2014-01-01T23:59:59.000Z

399

Electron Cyclotron Heating in RFP plasmas  

SciTech Connect (OSTI)

Reversed field pinches (RFP) plasmas are typically overdense ({omega}{sub pe}>{omega}{sub ce}) and thus not suitable for conventional electron cyclotron (EC) heating and current drive. In recent high plasma current discharges (I{sub p}>1.5 MA), however, the RFX-mod device was operated in underdense conditions ({omega}{sub pe}<{omega}{sub ce}) for the first time in an RFP. Thus, it is now possible to envisage heating the RFP plasma core by conventional EC at the 2nd harmonic, in the ordinary or extraordinary mode. We present a preliminary study of EC-heating feasibility in RFX-mod with the use of beam-tracing and full-wave codes. Although not competitive - as a heating system - with multi-MW Ohmic heating in an RFP, EC might be useful for perturbative transport studies, even at moderate power (hundreds of kW), and, more generally, for applications requiring localized power deposition.

Bilato, R.; Poli, E. [MPI fuer Plasmaphysik-Euratom Association Boltzmannstr. 2, D-85748 Garching (Germany); Volpe, F. [Department of Engineering Physics, University of Wisconsin, Madison, WI (United States); Koehn, A. [Institut fuer Plasmaforschung, Universitaet Stuttgart-Stuttgart (Germany); Cavazzana, R.; Paccagnella, R. [Consorzio RFX-Associazione EURATOM-ENEA sulla fusione-Padova (Italy); Farina, D. [IFP-CNR, EURATOM-ENEA-CNR Association-Milano (Italy)

2009-11-26T23:59:59.000Z

400

Heating System Specification Specification of Heating System  

E-Print Network [OSTI]

Appendix A Heating System Specification /* Specification of Heating System (loosely based */ requestHeat : Room ­? bool; 306 #12; APPENDIX A. HEATING SYSTEM SPECIFICATION 307 /* user inputs */ livingPattern : Room ­? behaviour; setTemp : Room ­? num; heatSwitchOn, heatSwitchOff, userReset : simple

Day, Nancy

Note: This page contains sample records for the topic "heating machine drive" 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

Heat pipe cooled heat rejection subsystem modelling for nuclear electric propulsion. Final report  

SciTech Connect (OSTI)

NASA LeRC is currently developing a FORTRAN based computer model of a complete nuclear electric propulsion (NEP) vehicle that can be used for piloted and cargo missions to the Moon or Mars. Proposed designs feature either a Brayton or a K-Rankine power conversion cycle to drive a turbine coupled with rotary alternators. Both ion and magnetoplasmodynamic (MPD) thrusters will be considered in the model. In support of the NEP model, Rocketdyne is developing power conversion, heat rejection, and power management and distribution (PMAD) subroutines. The subroutines will be incorporated into the NEP vehicle model which will be written by NASA LeRC. The purpose is to document the heat pipe cooled heat rejection subsystem model and its supporting subroutines. The heat pipe cooled heat rejection subsystem model is designed to provide estimate of the mass and performance of the equipment used to reject heat from Brayton and Rankine cycle power conversion systems. The subroutine models the ductwork and heat pipe cooled manifold for a gas cooled Brayton; the heat sink heat exchanger, liquid loop piping, expansion compensator, pump and manifold for a liquid loop cooled Brayton; and a shear flow condenser for a K-Rankine system. In each case, the final heat rejection is made by way of a heat pipe radiator. The radiator is sized to reject the amount of heat necessary.

Moriarty, M.P.

1993-11-01T23:59:59.000Z

402

Heat pumping with optically driven excitons  

E-Print Network [OSTI]

We present a theoretical study showing that an optically driven excitonic two-level system in a solid state environment acts as a heat pump by means of repeated phonon emission or absorption events. We derive a master equation for the combined phonon bath and two-level system dynamics and analyze the direction and rate of energy transfer as a function of the externally accessible driving parameters. We discover that if the driving laser is detuned from the exciton transition, cooling the phonon environment becomes possible.

Erik M. Gauger; Joachim Wabnig

2010-06-07T23:59:59.000Z

403

Heat pumping with optically driven excitons  

E-Print Network [OSTI]

We present a theoretical study showing that an optically driven excitonic two-level system in a solid state environment acts as a heat pump by means of repeated phonon emission or absorption events. We derive a master equation for the combined phonon bath and two-level system dynamics and analyze the direction and rate of energy transfer as a function of the externally accessible driving parameters. We discover that if the driving laser is detuned from the exciton transition, cooling the phonon environment becomes possible.

Gauger, Erik M

2010-01-01T23:59:59.000Z

404

Modelling and steady state simulation of a switched reluctance motor drive  

SciTech Connect (OSTI)

The switched reluctance motor (SRM) has been a popular topic of research for the last 15 years. As a result of this development activity, the SRM has evolved into a practical alternative to other machines for a variety of applications. It is now becoming increasingly important to understand the SRM`s control characteristics and power requirements. To accomplish this a thorough description of the machine`s terminal characteristics is required. The SRM can be described as a system with two ports, the windings through which electrical power is transferred and the shaft through which mechanical power flows. These systems are coupled by a magnetic system, through which the energy conversion process occurs. The windings can be modelled as an inductor and much work has focused on the modelling of the SRM inductance. The difficulty with this approach is that the SRM magnetic structures must operate in deep saturation resulting in a nonlinear winding inductance. Many people have linearized this inductance using a variety of techniques but each results in unnecessarily complicated models for many applications. In this paper a relatively simple model for the SRM is developed. This type of model could be a cheap and effective tool for the development of SRM drive systems. This approach will become increasingly relevant as these drives become increasingly popular. In this paper the machine terminal characteristics in terms of flux linkage are described. It will be shown that flux linkage is a function of two variables resulting in a surface function. Additionally it will be shown that this surface function contains the terminal characteristics of the SRM. Finally measurements from actual hardware are made and used to develop a model using the techniques developed here. Results of model simulation are then compared with measured data.

Ruckstadter, E.J. [Wright Lab., Wright-Patterson AFB, OH (United States); Kee, R.J. [Univ. of Dayton, OH (United States). Dept. of Electrical Engineering

1995-12-31T23:59:59.000Z

405

Z Machine | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Z Machine | National Nuclear Security Administration Z Machine | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Z Machine Z Machine Home > About Us > Our Programs > Defense Programs > Office of Research, Development, Test, and Evaluation > Office of Inertial Confinement Fusion > Facilities > Z Machine Z Machine Z Machine Sandia National Laboratories

406

Vision and Inertial Sensor Based Drive Trains Control  

E-Print Network [OSTI]

Inertial Sensor Based Drive Trains Control by Haifei Cheng AInertial Sensor Based Drive Trains Control c 2010 by HaifeiInertial Sensor Based Drive Trains Control by Haifei Cheng

Cheng, Haifei

2010-01-01T23:59:59.000Z

407

Note PC catalogue (Machine body)  

E-Print Network [OSTI]

Specifications Image Brand Model 009 lenovo X61s Core2Duo L7500 1.60GHz 4GB 160GB 12.1inch 1.42Kg Windows Remarks Specifications Image Brand Model 018 Panasonic CF-F8EWMCAC Core2Duo P9300 2.26GHz 2GB 250GB 14 (Machine body) Accessory LAN Wireless LAN PC PC Code Remarks Specifications Image Brand Model 027

Katsumoto, Shingo

408

A review on sensorless techniques for sustainable reliablity and efficient variable frequency drives of induction motors  

Science Journals Connector (OSTI)

Abstract Variable frequency drives (VFDs) can provide reliable dynamic systems and significant savings in energy usage and costs of the induction motors (IMs). Sensorless controlled IM drives have advantages in terms of efficiency enhancement and energy savings for critical applications such as electric vehicles, high performance machine tools, fans, compressors, etc. IM drives without having speed sensors or optical encoders mounted at the motor shaft are attractive because of their lower cost and higher reliability. When mechanical speed sensor is removed, the rotor speed information is estimated using the measured quantities of stator voltages and currents at the IM terminals. This paper highlights the sensorless techniques applied to the IM drives for sustainable reliability and energy savings. Overview on the IM mathematical model is briefly summarized to establish a physical basis for the sensorless schemes used. Further, the different types of IM-VFDs are presented in the paper. The main focus of this review is on the sensorless estimation techniques which are being applied to make IM-VFDs more effective during wide speed operations including very-high and very-low speed regions.

Ibrahim M. Alsofyani; N.R.N. Idris

2013-01-01T23:59:59.000Z

409

LTC vacuum blasting machine (concrete): Baseline report  

SciTech Connect (OSTI)

The LTC shot blast technology was tested and is being evaluated at Florida International University (FIU) as a baseline technology. In conjunction with FIU`s evaluation of efficiency and cost, this report covers the evaluation conducted for safety and health issues. It is a commercially available technology and has been used for various projects at locations throughout the country. The LTC 1073 Vacuum Blasting Machine uses a high-capacity, direct-pressure blasting system which incorporates a continuous feed for the blast media. The blast media cleans the surface within the contained brush area of the blast. It incorporates a vacuum system which removes dust and debris from the surface as it is blasted. The safety and health evaluation during the testing demonstration focused on two main areas of exposure: dust and noise. Dust exposure during maintenance activities was minimal, but due to mechanical difficulties dust monitoring could not be conducted during operation. Noise exposure was significant. Further testing for each of these exposures is recommended because of the outdoor environment where the testing demonstration took place. This may cause the results to be inaccurate. It is feasible that the dust and noise levels will be higher in an enclosed environment. In addition, other safety and health issues found were ergonomics, heat stress, tripping hazards, electrical hazards, lockout/tagout, and arm-hand vibration.

NONE

1997-07-31T23:59:59.000Z

410

LTC vacuum blasting machine (metal): Baseline report  

SciTech Connect (OSTI)

The LTC coating removal technology was tested and is being evaluated at Florida International University (FIU) as a baseline technology. In conjunction with evaluation of efficiency and cost, this report covers the evaluation conducted for safety and health issues. It is a commercially available technology and has been used for various projects at locations throughout the country. The LTC coating removal system consisted of several hand tools, a Roto Peen scaler, and a needlegun. They are designed to remove coatings from steel, concrete, brick, and wood. These hand tools are used with the LTC PTC-6 vacuum system to capture dust and debris as removal of the coating takes place. The safety and health evaluation during the testing demonstration focused on two main areas of exposure: dust and noise. The dust exposure was minimal but noise exposure was significant. Further testing for each exposure is recommended because of the environment where the testing demonstration took place. It is feasible that the dust and noise levels will be higher in an enclosed operating environment of different construction. In addition, other areas of concern found were arm-hand vibration, whole-body vibration, ergonomics, heat stress, tripping hazards, electrical hazards, machine guarding, and lockout/tagout.

NONE

1997-07-31T23:59:59.000Z

411

Driving Efficiencies Track | Department of Energy  

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

Driving Efficiencies Track Driving Efficiencies Track Driving Efficiencies Track Driving Efficiencies Track Tuesday April 17, 2012 From E-Mail to "The Stream" by Don Burke Taking Records Inventory Into the 21st Century by Lorie A. Robb Engineering and Operations Control: Embrace the Culture by Cheryl Bolen IT Project Management Framework by Denise Hill Wednesday April 18, 2012 Records Warehouse Operations and Records Storage for External Customers by Karen Hatch Preservation of Long-Term Temporary Records by Jeanie Gueretta Mobile Initiatives Effecting Change at Hanford by Don Stewart DOE's CIO's EWA by Sarah Gamage, Don Schade and Alan Andon Green IT 2012: Sustainable Electronics by Edwin Luevanos and Jeff Eagan Thursday April 19, 2012 Document Management and Control System by Melissa Ruth

412

Fuel Economy: What Drives Consumer Choice?  

E-Print Network [OSTI]

S. Kurani, “Car Buyers and Fuel Economy? ” Energy Policy,Fuel Economy: What Drives Consumer Choice? BY TOMa car, do they think about fuel costs over time, are they

Turrentine, Tom; Kurani, Kenneth; Heffner, Rusty

2007-01-01T23:59:59.000Z

413

Image fusion for a nighttime driving display  

E-Print Network [OSTI]

An investigation into image fusion for a nighttime driving display application was performed. Most of the image fusion techniques being investigated in this application were developed for other purposes. When comparing the ...

Herrington, William Frederick

2005-01-01T23:59:59.000Z

414

Vehicle Technologies Office: Electric Drive Technologies  

Broader source: Energy.gov [DOE]

Advanced power electronics and electric motors (APEEM) that make up vehicles' electric drive system are essential to hybrid and plug-in electric vehicles. As such, improvements in these...

415

Modeling driving decisions with latent plans  

E-Print Network [OSTI]

Driving is a complex task that includes a series of interdependent decisions. In many situations, these decisions are based on a specific plan. The plan is however unobserved or latent and only the manifestations of the ...

Choudhury, Charisma Farheen, 1978-

2007-01-01T23:59:59.000Z

416

Safe Tractor Operation: Driving on Highways  

E-Print Network [OSTI]

About 50 tractor drivers are killed each year in collisions with other vehicles on public roads. Many of these accidents could be prevented. This publication describes the legal requirements for operating a tractor on public roads, safe driving...

Smith, David

2004-09-16T23:59:59.000Z

417

Adjustable Speed Drive Part-Load Efficiency  

Broader source: Energy.gov [DOE]

An adjustable speed drive (ASD) is a device that controls the rotational speed of motor-driven equipment. Variable frequency drives (VFDs), the most common type of ASDs, efficiently meet varying process requirements by adjusting the frequency and voltage of the power supplied to an AC motor to enable it to operate over a wide speed range. External sensors monitor flow, liquid levels, or pressure and then transmit a signal to a controller that adjusts the frequency and speed to match process requirements.

418

Frequency modulation drive for a piezoelectric motor  

DOE Patents [OSTI]

A piezoelectric motor has peak performance at a specific frequency f.sub.1 that may vary over a range of frequencies. A drive system is disclosed for operating such a motor at peak performance without feedback. The drive system consists of the motor and an ac source connected to power the motor, the ac source repeatedly generating a frequency over a range from f.sub.1 -.DELTA.x to f.sub.1 +.DELTA.y.

Mittas, Anthony (Albuquerque, NM)

2001-01-01T23:59:59.000Z

419

Power threshold for neutral beam current drive  

SciTech Connect (OSTI)

For fully noninductive current drive in tokamaks using neutral beams, there is a power and density threshold condition, setting a minimum value for P{sup 3/2}/n{sup 2}. If this condition is not met, stationary state cannot occur, and a tokamak discharge will collapse. This is a consequence of the coupling between current and electron temperature, or between current drive efficiency and energy confinement time. 4 figs.

Politzer, P.A. (General Atomics, San Diego, CA (USA)); Porter, G.D. (Lawrence Livermore National Lab., CA (USA))

1989-10-02T23:59:59.000Z

420

10MW Class Direct Drive HTS Wind Turbine: Cooperative Research and Development Final Report, CRADA Number CRD-08-00312  

SciTech Connect (OSTI)

This paper summarizes the work completed under the CRADA between NREL and American Superconductor (AMSC). The CRADA combined NREL and AMSC resources to benchmark high temperature superconducting direct drive (HTSDD) generator technology by integrating the technologies into a conceptual wind turbine design, and comparing the design to geared drive and permanent magnet direct drive (PMDD) wind turbine configurations. Analysis was accomplished by upgrading the NREL Wind Turbine Design Cost and Scaling Model to represent geared and PMDD turbines at machine ratings up to 10 MW and then comparing cost and mass figures of AMSC's HTSDD wind turbine designs to theoretical geared and PMDD turbine designs at 3.1, 6, and 10 MW sizes.

Musial, W.

2011-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "heating machine drive" 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

Utilizing the Traction Drive Power Electronics System to Provide...  

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

Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability...

422

High-Voltage Solid Polymer Batteries for Electric Drive Vehicles...  

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

High-Voltage Solid Polymer Batteries for Electric Drive Vehicles High-Voltage Solid Polymer Batteries for Electric Drive Vehicles 2013 DOE Hydrogen and Fuel Cells Program and...

423

High-Voltage Solid Polymer Batteries for Electric Drive Vehicles...  

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

High-Voltage Solid Polymer Batteries for Electric Drive Vehicles High-Voltage Solid Polymer Batteries for Electric Drive Vehicles 2012 DOE Hydrogen and Fuel Cells Program and...

424

Computer-Aided Engineering for Electric Drive Vehicle Batteries...  

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

Computer-Aided Engineering for Electric Drive Vehicle Batteries (CAEBAT) Computer-Aided Engineering for Electric Drive Vehicle Batteries (CAEBAT) 2011 DOE Hydrogen and Fuel Cells...

425

Impact of Driving Behavior on PHEV Fuel Consumption for Different...  

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

Driving Behavior on PHEV Fuel Consumption for Different Powertrain, Component Sizes and Control Impact of Driving Behavior on PHEV Fuel Consumption for Different Powertrain,...

426

Improving Motor and Drive System Performance - A Sourcebook for...  

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

More Documents & Publications Is it Cost-Effective to Replace Old Eddy-Current Drives? Adjustable Speed Pumping Applications Consider Steam Turbine Drives for Rotating Equipment...

427

EV Everywhere Electric Drive Workshop: Preliminary Target-Setting...  

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

Electric Drive Workshop: Preliminary Target-Setting Framework EV Everywhere Electric Drive Workshop: Preliminary Target-Setting Framework Presentation given at the EV Everywhere...

428

Center for Electric Drive Transportation at the University of...  

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

Electric Drive Transportation at the University of Michigan - Dearborn Center for Electric Drive Transportation at the University of Michigan - Dearborn 2012 DOE Hydrogen and Fuel...

429

Electric Drive and Advanced Battery and Components Testbed (EDAB...  

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

Review and Peer Evaluation vss033carlson2011o.pdf More Documents & Publications Electric Drive and Advanced Battery and Components Testbed (EDAB) Electric Drive and Advanced...

430

How Exhaust Emissions Drive Diesel Engine Fuel Efficiency | Department...  

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

How Exhaust Emissions Drive Diesel Engine Fuel Efficiency How Exhaust Emissions Drive Diesel Engine Fuel Efficiency 2004 Diesel Engine Emissions Reduction (DEER) Conference...

431

High-Temperature, Air-Cooled Traction Drive Inverter Packaging...  

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

Temperature, Air-Cooled Traction Drive Inverter Packaging High-Temperature, Air-Cooled Traction Drive Inverter Packaging 2010 DOE Vehicle Technologies and Hydrogen Programs Annual...

432

California and Connecticut: National Fuel Cell Bus Programs Drive...  

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

California and Connecticut: National Fuel Cell Bus Programs Drive Fuel Economy Higher California and Connecticut: National Fuel Cell Bus Programs Drive Fuel Economy Higher August...

433

Energy Department Announces $53 Million to Drive Innovation,...  

Energy Savers [EERE]

Energy Department Announces 53 Million to Drive Innovation, Cut Cost of Solar Power Energy Department Announces 53 Million to Drive Innovation, Cut Cost of Solar Power October...

434

EV Everywhere Grand Challenge Introduction for Electric Drive...  

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

Introduction for Electric Drive Workshop EV Everywhere Grand Challenge Introduction for Electric Drive Workshop Presentation given by EERE Assistant Secretary David Danielson at...

435

Solutions for Interharmonics in Variable Speed Drives for LNG Plants:.  

E-Print Network [OSTI]

??Variable speed drives can cause components of any frequency known as interharmonics. Large variable speed drives in the order of tens of megawatts can replace… (more)

Verhulst, M.P.A.

2011-01-01T23:59:59.000Z

436

INSTALLATION, COMMISSIONING AND TROUBLE SHOOTING OF VARIABLE FREQUENCY DRIVE.  

E-Print Network [OSTI]

??In this thesis, the installation of variable frequency drive on board a ship is introduced briefly. In this particular study the variable frequency drive was… (more)

Kuituniemi, Santtu

2013-01-01T23:59:59.000Z

437

US DRIVE Vehicle Systems and Analysis Technical Team Roadmap...  

Energy Savers [EERE]

US DRIVE Driving Research and Innovation for Vehicle Efficiency and Energy Sustainability Partnership Plan Vehicle Technologies Office: 2013 Vehicle and Systems Simulation...

438

Solar receiver heliostat reflector having a linear drive and position information system  

DOE Patents [OSTI]

A heliostat for a solar receiver system comprises an improved drive and control system for the heliostat reflector assembly. The heliostat reflector assembly is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e., heat receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The improved drive system includes linear stepping motors which comprise low weight, low cost, electronic pulse driven components. One embodiment comprises linear stepping motors controlled by a programmed, electronic microprocessor. Another embodiment comprises a tape driven system controlled by a position control magnetic tape.

Horton, Richard H. (Schenectady, NY)

1980-01-01T23:59:59.000Z

439

Small business initiative -- Surface inspection machine infrared (SIMIR)  

SciTech Connect (OSTI)

This Cooperative Research and Development Agreement was a one year effort to make the surface inspection machine based on diffuse reflectance infrared spectroscopy (Surface Inspection Machine-Infrared, SIMIR), being developed by Surface Optics Corporation, perform to its highest potential as a practical, portable surface inspection machine. A secondary purpose was to evaluate applications that would serve both the private and the public sector. The design function of the SIMIR is to inspect sandblasted metal surfaces for cleanliness (stains). The system is also capable of evaluating graphite-resin systems for cure and heat damage, and for measuring the effects of moisture exposure on lithium hydride, corrosion on uranium metal, and the constituents of and contamination on wood, paper, and fabrics. Surface Optics Corporation supplied LMES-Y12 with a prototype SOC-400 that was evaluated by LMES-Y12 and rebuilt by Surface Optics to achieve the desired performance. LMES-Y12 subsequently evaluated the instrument against numerous applications including determining part cleanliness at the Corpus Christi Army Depot, demonstrating the ability to detect plasticizers and other organic contaminants on metals to Pantex and LANL personnel, analyzed sandblasted metal contamination standards supplied by NASA-MSFC, and demonstrated to Lockheed Martin Tactical Aircraft, marietta, GA, for analyzing the paint applied to the F-22 Fighter. The instrument also demonstrated the analysis of yarn, fabric, and finish on the textiles.

Powell, G.L. [Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States); Beecroft, M. [Surface Optics Corp., San Diego, CA (United States)

1997-05-30T23:59:59.000Z

440

MASSACHUSETTS DRIVES PERFORMANCE MEASUREMENT | Department of...  

Energy Savers [EERE]

The Home MPG rebates (i.e., 2,000 for qualifying cold climate ductless mini-split heat pumps; 1,000 for qualifying heat pump water heaters; and 75% up to 16,000 for...

Note: This page contains sample records for the topic "heating machine drive" 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

Veeco Develops Tools to Drive Down HBLED Costs  

Broader source: Energy.gov [DOE]

Veeco is working in partnership with Sandia National Laboratories and Philips Lumileds to drive down the cost of high-brightness LEDs by implementing process simulation tools and by improving temperature measurement and control methods to increase MOCVD yield. Veeco is working with Sandia to reduce the cost of ownership (COO) of the deposition equipment by, for example, using a heated flow flange, which reduces the consumption of the expensive precursors (ammonia, nitrogen, hydrogen, and the metal organics) by 40 percent. Two different types of pyrometers developed by Sandia and Veeco are being tested by Philips Lumileds to control the substrate temperature, which helps determine the color of the LED. If all works according to plan, the COO will be reduced by at least 75 percent by improving throughput, growth uniformity, yield, and temperature stabilization.

442

US DRIVE Driving Research and Innovation for Vehicle Efficiency and Energy Sustainability Partnership Plan  

Broader source: Energy.gov [DOE]

This document describes the vision, mission, scope, and governing policies of the U.S. DRIVE Partnership (“Partnership”). Dated December 2014.

443

Chip breaking system for automated machine tool  

DOE Patents [OSTI]

The invention is a rotary selectively directional valve assembly for use in an automated turret lathe for directing a stream of high pressure liquid machining coolant to the interface of a machine tool and workpiece for breaking up ribbon-shaped chips during the formation thereof so as to inhibit scratching or other marring of the machined surfaces by these ribbon-shaped chips. The valve assembly is provided by a manifold arrangement having a plurality of circumferentially spaced apart ports each coupled to a machine tool. The manifold is rotatable with the turret when the turret is positioned for alignment of a machine tool in a machining relationship with the workpiece. The manifold is connected to a non-rotational header having a single passageway therethrough which conveys the high pressure coolant to only the port in the manifold which is in registry with the tool disposed in a working relationship with the workpiece. To position the machine tools the turret is rotated and one of the tools is placed in a material-removing relationship of the workpiece. The passageway in the header and one of the ports in the manifold arrangement are then automatically aligned to supply the machining coolant to the machine tool workpiece interface for breaking up of the chips as well as cooling the tool and workpiece during the machining operation.

Arehart, Theodore A. (Clinton, TN); Carey, Donald O. (Oak Ridge, TN)

1987-01-01T23:59:59.000Z

444

Study of Density Behavior During LHCD and IBW Heating in the HT-7 Superconducting Tokamak  

Science Journals Connector (OSTI)

A new method using special shape parameters has been introduced to study density behavior with synergy of lower hybrid current drive (LHCD) and ion Bernstein wave (IBW) heating in the HT-7 superconducting tokamak

M. Asif; X. Gao

2004-09-01T23:59:59.000Z

445

RF Analysis of ITER Remote Steering Antenna for Electron-Cyclotron Plasma Heating  

Science Journals Connector (OSTI)

An application of remote RF beam steering concept, based on image multiplication phenomena in a corrugated square waveguide, to electron-cyclotron plasma heating and current drive for ITER has been ... breakdown,...

G.G. Denisov; S.V. Kuzikov; N. Kobayashi

2001-12-01T23:59:59.000Z

446

Control of Two Permanent Magnet Machines Using a Five-Leg Inverter for Automotive Applications  

SciTech Connect (OSTI)

This paper presents digital control schemes for control of two permanent magnet (PM) machines in an integrated traction and air-conditioning compressor drive system for automotive applications. The integrated drive system employs a five-leg inverter to power a three-phase traction PM motor and a two-phase compressor PM motor by tying the common terminal of the two-phase motor to the neutral point of the three-phase motor. Compared to a three-phase or a standalone two-phase inverter, it eliminates one phase leg and shares the control electronics between the two drives, thus significantly reducing the component count of the compressor drive. To demonstrate that the speed and torque of the two PM motors can be controlled independently, a control strategy was implemented in a digital signal processor, which includes a rotor flux field orientation based control (RFOC) for the three-phase motor, a similar RFOC and a position sensorless control in the brushless dc (BLDC) mode for the two-phase motor. Control implementation issues unique to a two-phase PM motor are also discussed. Test results with the three-phase motor running in the ac synchronous (ACS) mode while the two-phase motor either in the ACS or the BLDC mode are included to verify the independent speed and torque control capability of the integrated drive.

Su, Gui-Jia [ORNL; Tang, Lixin [ORNL; Huang, Xianghui [GE Global Research

2006-01-01T23:59:59.000Z

447

Method of producing drive fluid in situ in tar sands formations  

DOE Patents [OSTI]

Methods of treating a tar sands formation are described herein. Methods for treating a tar sands may include providing heat to at least part of a hydrocarbon layer in the formation from one or more heaters located in the formation. The heat may be allowed to transfer from the heaters to at least a portion of the formation such that a drive fluid is produced in situ in the formation. The drive fluid may move at least some mobilized, visbroken, and/or pyrolyzed hydrocarbons from a first portion of the formation to a second portion of the formation. At least some of the mobilized, visbroken, and/or pyrolyzed hydrocarbons may be produced from the formation.

Mudunuri, Ramesh Raju (Houston, TX); Jaiswal, Namit (Houston, TX); Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX)

2010-03-23T23:59:59.000Z

448

Geothermal district heating systems  

SciTech Connect (OSTI)

Ten district heating demonstration projects and their present status are described. The projects are Klamath County YMCA, Susanville District Heating, Klamath Falls District Heating, Reno Salem Plaza Condominium, El Centro Community Center Heating/Cooling, Haakon School and Business District Heating, St. Mary's Hospital, Diamond Ring Ranch, Pagosa Springs District Heating, and Boise District Heating.

Budney, G.S.; Childs, F.

1982-01-01T23:59:59.000Z

449

Efficient Checkpointing of Virtual Machines using Virtual Machine Introspection  

SciTech Connect (OSTI)

Cloud Computing environments rely heavily on system-level virtualization. This is due to the inherent benefits of virtualization including fault tolerance through checkpoint/restart (C/R) mechanisms. Because clouds are the abstraction of large data centers and large data centers have a higher potential for failure, it is imperative that a C/R mechanism for such an environment provide minimal latency as well as a small checkpoint file size. Recently, there has been much research into C/R with respect to virtual machines (VM) providing excellent solutions to reduce either checkpoint latency or checkpoint file size. However, these approaches do not provide both. This paper presents a method of checkpointing VMs by utilizing virtual machine introspection (VMI). Through the usage of VMI, we are able to determine which pages of memory within the guest are used or free and are better able to reduce the amount of pages written to disk during a checkpoint. We have validated this work by using various benchmarks to measure the latency along with the checkpoint size. With respect to checkpoint file size, our approach results in file sizes within 24% or less of the actual used memory within the guest. Additionally, the checkpoint latency of our approach is up to 52% faster than KVM s default method.

Aderholdt, Ferrol [Tennessee Technological University] [Tennessee Technological University; Han, Fang [Tennessee Technological University] [Tennessee Technological University; Scott, Stephen L [ORNL] [ORNL; Naughton, III, Thomas J [ORNL

2014-01-01T23:59:59.000Z

450

Deutsch's Universal Quantum Turing Machine (Revisited)  

E-Print Network [OSTI]

Deutsch, Feynman, and Manin viewed quantum computing as a kind of universal physical simulation procedure. Much of the writing about quantum Turing machines has shown how these machines can simulate an arbitrary unitary transformation on a finite number of qubits. This interesting problem has been addressed most famously in a paper by Deutsch, and later by Bernstein and Vazirani. Quantum Turing machines form a class closely related to deterministic and probabilistic Turing machines and one might hope to find a universal machine in this class. A universal machine is the basis of a notion of programmability. The extent to which universality has in fact been established by the pioneers in the field is examined and a key notion in theoretical computer science (universality) is scrutinised. In a forthcoming paper, the authors will also consider universality in the quantum gate model.

Willem Fouché; Johannes Heidema; Glyn Jones; Petrus H. Potgieter

2007-01-16T23:59:59.000Z

451

A conversational Chinese Tutoring Machine  

E-Print Network [OSTI]

CAI (LAMBDA NIL (PROG1 (SET PARA) (CAIM07) (CAIM03) (CLRSCRN) (PRINTX '(Thanks for joining the Chinese Tutoring Machine) 9 15) (PRINTX '(bye bye !) 11 35) ) )) t*'0 '0'0************'k 'k*****V '@*It%'**'k**'k****'k**'@**1k *ll 'Nf****'k 0 'kt... **'0 * FUNCTION : CAIM03 This is the main driver function for lesson section. ***4'***1@*'0 4 4 'P * a%****'k 'k****'0**4 *V k*%**%'**%********%'**'I*V 4 4*** (DEFUN CAIM03 (LAMBDA NIL ( PROG1 (CAIM04) (COND ((EQUAL RES 'E) T) (T (CAIM05) (CAIM...

Cheng, Long-Fung

2012-06-07T23:59:59.000Z

452

Free-piston cutting machine  

DOE Patents [OSTI]

A cutting machine includes a gun barrel for receiving a projectile. A compression tube is disposed in flow communication with the barrel and includes a piston therein. A reservoir is disposed in flow communication with the tube and receives a first gas under pressure. A second gas fills the compression tube on a front face of the piston. And, the pressurized first gas is discharged into the tube on a back face of the piston to accelerate the piston through the tube for compressing the second gas, and in turn launching the projectile through the barrel to impact a workpiece.

Ciccarelli, Gaby (East Setauket, NY); Subudhi, Manomohan (East Setauket, NY); Hall, Robert E. (Port Jefferson, NY)

2000-01-01T23:59:59.000Z

453

Water and Space Heating Heat Pumps  

E-Print Network [OSTI]

This paper discusses the design and operation of the Trane Weathertron III Heat Pump Water Heating System and includes a comparison of features and performance to other domestic water heating systems. Domestic water is generally provided through...

Kessler, A. F.

1985-01-01T23:59:59.000Z

454

Rapid Response Small Machining NNR Project 703025  

SciTech Connect (OSTI)

This project was an effort to develop a machining area for small sized parts that is capable of delivering product with a quick response time. This entailed focusing efforts on leaning out specific work cells that would result in overall improvement to the entire machining area. This effort involved securing the most efficient available technologies for these areas. In the end, this incorporated preparing the small machining area for transformation to a new facility.

Kanies, Tim

2008-12-05T23:59:59.000Z

455

Evaluation of efficiency of a driving system on the basis of energetic and ecological characteristics of an IC engine and hydrostatic transmission for the spectrum of load  

Science Journals Connector (OSTI)

The following paper presents the general model of a driving system: IC engine - hydrostatic transmission - load of a vehicle, in the form of area with specified spectrum of variables: torque and velocity. This model allows the analysis of efficiency of hydrostatic driving system and points of work of an IC engine in the field of load characteristics. Mathematical models of the components of the driving system, for the analysed case, are the results of the experimental examination. The concepts of global efficiency and ecological indexes originally introduced are suitable to compare the quality of driving systems working in statistically the same load conditions. It allows the evaluation of the value of those parameters in the whole functioning life of a machine.

Henryk Chrostowski; Waldemar Sradomski

2005-01-01T23:59:59.000Z

456

An Improved Mechanical Equivalent of Heat Experiment  

Science Journals Connector (OSTI)

An interesting variation of Joule's classical experiment on the mechanical equivalent of heat is described. It makes use of a rotary stirring mechanism for adding energy to water in a calorimeter the energy being measured by a bifilar suspension of the driving motor. The motor is operated at synchronous speed. Temperature measurements are by means of a thermocouple and potentiometer. With reasonable care results can be obtained which are consistent to about 3 percent.

George G. Kretschmar

1951-01-01T23:59:59.000Z

457

Heat-activated cooling devices: A guidebook for general audiences  

SciTech Connect (OSTI)

Heat-activated cooling is refrigeration or air conditioning driven by heat instead of electricity. A mill or processing facility can us its waste fuel to air condition its offices or plant; using waste fuel in this way can save money. The four basic types of heat-activated cooling systems available today are absorption cycle, desiccant system, steam jet ejector, and steam turbine drive. Each is discussed, along with cool storage and biomass boilers. Steps in determining the feasibility of heat-activated cooling are discussed, as are biomass conversion, system cost and integration, permits, and contractor selection. Case studies are given.

Wiltsee, G.

1994-02-01T23:59:59.000Z

458

Design and manufacturing of high precision roll-to-roll multilayer printing machine -- machine upgrade  

E-Print Network [OSTI]

In 2008, a group of MIT Master of Engineering students built a roll to roll machine for printing thiol onto a flexible gold substrate by self-assembly. The machine demonstrated good performance in high speed printing (400 ...

Zhu, Yufei

2009-01-01T23:59:59.000Z

459

Mathematical modelling approach for determining optimal machining parameters in turning with computer numerical control (CNC) machines  

Science Journals Connector (OSTI)

Due to advancement in the manufacturing technology the application of computer numerical control (CNC) machines have increased manifolds. The determination of machining parameters for optimal results in machining is a part of computer aided process planning. In computer numerical control (CNC) machining, determining optimum or appropriate cutting parameters can minimise machining errors such as tool breakage, tool deflection and tool wear, thus yielding a high productivity or minimum cost. Different mathematical models have been proposed by various researchers in the past for the determination of optimal machining parameters. The present paper attempt's to review the literature regarding 'machining parameter optimisation' for turning operation in CNC machines. Diverse contributing and important factors in mathematical modelling like, the economic criteria's, single and multi-pass turning, optimisation techniques and practical constraints deployed have been considered. A detailed discussion is presented regarding the topic and in the end conclusions are drawn.

Bhaskar Naithani; Santram Chauhan

2012-01-01T23:59:59.000Z

460

Design of chemical reactors of the heat exchanger type  

E-Print Network [OSTI]

Operating Profile - Example I 23 , 53 Heat Rate Comparison - Example I Operating Profile - Example 2 Operating Profile - Example 3 Operating Profile - Example 4 Equations (113) and (114) at 790 Reactor Profile - Exan piss 5 and 6 Heat of Reaction.... simple inathematical function of time. While his work was a step forward, it is not directly applicable to the problem of reactor design. Hougen and Watsor. (3), and recently Fair and Rase (4), illustra- ted an exact non-machine method of reactor...

McBeth, Lloyd Theodore

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "heating machine drive" 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

Machine Learning for Adaptive Computer Game Opponents .  

E-Print Network [OSTI]

??This thesis investigates the use of machine learning techniques in computer games to create a computer player that adapts to its opponent's game-play. This includes… (more)

Miles, Jonathan David

2009-01-01T23:59:59.000Z

462

Soil Machine Dynamics Ltd | Open Energy Information  

Open Energy Info (EERE)

Dynamics Ltd Jump to: navigation, search Name: Soil Machine Dynamics Ltd Region: United Kingdom Sector: Marine and Hydrokinetic Website: http:http:smd.co.ukproduc This company...

463

Machine Protection System response in 2011  

E-Print Network [OSTI]

The performance of the machine protection system during the 2011 run is summarized in this paper. Following an analysis of the beam dump causes in comparison to the previous 2010 run, special emphasis will be given to analyse events which risked to exposed parts of the machine to damage. Further improvements and mitigations of potential holes in the protection systems as well as in the change management will be evaluated along with their impact on the 2012 run. The role of the restricted Machine Protection Panel ( rMPP ) during the various operational phases such as commissioning, the intensity ramp up and Machine Developments is being discussed.

Zerlauth, M; Wenninger, J

2012-01-01T23:59:59.000Z

464

Atmospheric Plasma Jet Machining of Optical Surfaces  

Science Journals Connector (OSTI)

Deterministic surface machining with high spatial resolution and nanometric depth accuracy is urgently required in the fabrication of high-end optics. Thus, plasma jet tools with...

Böhm, Georg; Eichentopf, Inga-Maria; Arnold, Thomas

465

An intelligent CNC machine control system architecture  

SciTech Connect (OSTI)

Intelligent, agile manufacturing relies on automated programming of digitally controlled processes. Currently, processes such as Computer Numerically Controlled (CNC) machining are difficult to automate because of highly restrictive controllers and poor software environments. It is also difficult to utilize sensors and process models for adaptive control, or to integrate machining processes with other tasks within a factory floor setting. As part of a Laboratory Directed Research and Development (LDRD) program, a CNC machine control system architecture based on object-oriented design and graphical programming has been developed to address some of these problems and to demonstrate automated agile machining applications using platform-independent software.

Miller, D.J.; Loucks, C.S.

1996-10-01T23:59:59.000Z

466

6.685 Electric Machines, Fall 2003  

E-Print Network [OSTI]

Treatment of electromechanical transducers, rotating and linear electric machines. Lumped-parameter electromechanics of interaction. Development of device characteristics: energy conversion density, efficiency; and of ...

Kirtley, James L.

467

Electro discharge machining for micro manufacturing.  

E-Print Network [OSTI]

??Due to the high precision and good surface quality that it can give, Electrical Discharge Machining (EDM) is potentially an important process for the fabrication… (more)

Ivanov, Atanas

2008-01-01T23:59:59.000Z

468

MACHINING STABILITY OF WIRE EDM OF TITANIUM.  

E-Print Network [OSTI]

??This work presents an experimental investigation of wire electro-discharge machining (WEDM) of titanium alloy. The outstanding characteristics of titanium alloys such as their compatibility and… (more)

Nourbakhsh, Farnaz

2012-01-01T23:59:59.000Z

469

Covered Product Category: Refrigerated Beverage Vending Machines...  

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

vending machines are equipped with controls or software that put the lighting andor refrigeration systems into a low power state at night, on weekends, or other periods of...

470

Logo Turtle Graphics for the Lisp Machine  

E-Print Network [OSTI]

This paper is a manual for an implementation of Logo graphics primitives in Lisp on the MIT Lisp Machine. The graphics system provides:

Lieberman, Henry

1981-05-05T23:59:59.000Z

471

Consider Steam Turbine Drives for Rotating Equipment: Office of Industrial Technologies (OIT) Steam Tip Fact Sheet No.21  

SciTech Connect (OSTI)

Steam turbines are well suited as prime movers for driving boiler feedwater pumps, forced or induced-draft fans, blowers, air compressors, and other rotating equipment. This service generally calls for a backpressure non-condensing steam turbine. The low-pressure steam turbine exhaust is available for feedwater heating, preheating of deaerator makeup water, and/or process requirements.

Not Available

2002-01-01T23:59:59.000Z

472

Novel Power Electronics Three-Dimensional Heat Exchanger: Preprint  

SciTech Connect (OSTI)

Electric drive systems for vehicle propulsion enable technologies critical to meeting challenges for energy, environmental, and economic security. Enabling cost-effective electric drive systems requires reductions in inverter power semiconductor area. As critical components of the electric drive system are made smaller, heat removal becomes an increasing challenge. In this paper, we demonstrate an integrated approach to the design of thermal management systems for power semiconductors that matches the passive thermal resistance of the packaging with the active convective cooling performance of the heat exchanger. The heat exchanger concept builds on existing semiconductor thermal management improvements described in literature and patents, which include improved bonded interface materials, direct cooling of the semiconductor packages, and double-sided cooling. The key difference in the described concept is the achievement of high heat transfer performance with less aggressive cooling techniques by optimizing the passive and active heat transfer paths. An extruded aluminum design was selected because of its lower tooling cost, higher performance, and scalability in comparison to cast aluminum. Results demonstrated a heat flux improvement of a factor of two, and a package heat density improvement over 30%, which achieved the thermal performance targets.

Bennion, K.; Cousineau, J.; Lustbader, J.; Narumanchi, S.

2014-08-01T23:59:59.000Z

473

Heat transfer and heat exchangers reference handbook  

SciTech Connect (OSTI)

The purpose of this handbook is to provide Rocky Flats personnel with an understanding of the basic concepts of heat transfer and the operation of heat exchangers.

Not Available

1991-01-15T23:59:59.000Z

474

Heating systems for heating subsurface formations  

DOE Patents [OSTI]

Methods and systems for heating a subsurface formation are described herein. A heating system for a subsurface formation includes a sealed conduit positioned in an opening in the formation and a heat source. The sealed conduit includes a heat transfer fluid. The heat source provides heat to a portion of the sealed conduit to change phase of the heat transfer fluid from a liquid to a vapor. The vapor in the sealed conduit rises in the sealed conduit, condenses to transfer heat to the formation and returns to the conduit portion as a liquid.

Nguyen, Scott Vinh (Houston, TX); Vinegar, Harold J. (Bellaire, TX)

2011-04-26T23:59:59.000Z

475

Machine and Beam Delivery Updates  

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

MAchine and Beam delivery Updates FY13 MAchine and Beam delivery Updates FY13 Summary of Beam Delivery: FACET Summary Feb_15_22.pdf FACET Summary Feb_15_22.pdf FACET Summary Feb_23_Mar_1.pdf FACET Summary Feb_23_Mar_1.pdf FACET Summary Mar_2_8.pdf FACET Summary Mar_2_8.pdf FACET Summary Mar_9_15.pdf FACET Summary Mar_9_15.pdf FACET Summary Mar_16_22.pdf FACET Summary Mar_16_22.pdf FACET Summary Mar_23_29.pdf FACET Summary Mar_23_29.pdf FACET Summary Mar_30_Apr_5.pdf FACET Summary Mar_30_Apr_5.pdf FACET Summary Apr_6_12.pdf FACET Summary Apr_6_12.pdf FACET Summary Apr_27_May_3.pdf FACET Summary Apr_27_May_3.pdf FACET Summary May_4_10.pdf FACET Summary May_4_10.pdf Emittance Stability in Sector 2_31513.pdf Emittance Stability in Sector 2_31513.pdf FACET beam operations readiness with R56.pdf FACET beam operations readiness with R56.pdf (6/19/2013)

476

Micro-machined resonator oscillator  

DOE Patents [OSTI]

A micro-miniature resonator-oscillator is disclosed. Due to the miniaturization of the resonator-oscillator, oscillation frequencies of one MHz and higher are utilized. A thickness-mode quartz resonator housed in a micro-machined silicon package and operated as a telemetered sensor beacon'' that is, a digital, self-powered, remote, parameter measuring-transmitter in the FM-band. The resonator design uses trapped energy principles and temperature dependence methodology through crystal orientation control, with operation in the 20--100 MHz range. High volume batch-processing manufacturing is utilized, with package and resonator assembly at the wafer level. Unique design features include squeeze-film damping for robust vibration and shock performance, capacitive coupling through micro-machined diaphragms allowing resonator excitation at the package exterior, circuit integration and extremely small (0.1 in. square) dimensioning. A family of micro-miniature sensor beacons is also disclosed with widespread applications as bio-medical sensors, vehicle status monitors and high-volume animal identification and health sensors. The sensor family allows measurement of temperatures, chemicals, acceleration and pressure. A microphone and clock realization is also available. 21 figs.

Koehler, D.R.; Sniegowski, J.J.; Bivens, H.M.; Wessendorf, K.O.

1994-08-16T23:59:59.000Z

477

Micro-machined resonator oscillator  

DOE Patents [OSTI]

A micro-miniature resonator-oscillator is disclosed. Due to the miniaturization of the resonator-oscillator, oscillation frequencies of one MHz and higher are utilized. A thickness-mode quartz resonator housed in a micro-machined silicon package and operated as a "telemetered sensor beacon" that is, a digital, self-powered, remote, parameter measuring-transmitter in the FM-band. The resonator design uses trapped energy principles and temperature dependence methodology through crystal orientation control, with operation in the 20-100 MHz range. High volume batch-processing manufacturing is utilized, with package and resonator assembly at the wafer level. Unique design features include squeeze-film damping for robust vibration and shock performance, capacitive coupling through micro-machined diaphragms allowing resonator excitation at the package exterior, circuit integration and extremely small (0.1 in. square) dimensioning. A family of micro-miniature sensor beacons is also disclosed with widespread applications as bio-medical sensors, vehicle status monitors and high-volume animal identification and health sensors. The sensor family allows measurement of temperatures, chemicals, acceleration and pressure. A microphone and clock realization is also available.

Koehler, Dale R. (Albuquerque, NM); Sniegowski, Jeffry J. (Albuquerque, NM); Bivens, Hugh M. (Albuquerque, NM); Wessendorf, Kurt O. (Albuquerque, NM)

1994-01-01T23:59:59.000Z

478

DistributionDrive | Open Energy Information  

Open Energy Info (EERE)

DistributionDrive DistributionDrive Jump to: navigation, search Name DistributionDrive Place Addison, Texas Zip 75001 Product Supplier of Biodiesel, Straight Vegetable Oil (SVO), Recycled Vegetable Oil (WVO) and Engine Conversion Kits to use this fuels. Coordinates 38.477365°, -80.412149° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.477365,"lon":-80.412149,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

479

Drive Less, Save More | Department of Energy  

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

Drive Less, Save More Drive Less, Save More Drive Less, Save More May 24, 2011 - 12:31pm Addthis Shannon Brescher Shea Communications Manager, Clean Cities Program For someone who works in the Vehicle Technologies Program, I actually don't spend that much time in my automobile. I usually get around using a combination of public transit, my bike, and my own two feet. But I'm an exception. In the U.S., the vehicle miles travelled per person is actually twice as high as it is in Western Europe and three times higher than in Japan. However, alternatives to using your car have a wealth of benefits. In addition to reducing petroleum consumption, they can lower greenhouse gas emissions, improve air quality, decrease stress, and bring communities together. Fortunately, there are a variety of ways to minimize the distance

480

Drive Less, Save More | Department of Energy  

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

Drive Less, Save More Drive Less, Save More Drive Less, Save More May 24, 2011 - 12:31pm Addthis Shannon Brescher Shea Communications Manager, Clean Cities Program For someone who works in the Vehicle Technologies Program, I actually don't spend that much time in my automobile. I usually get around using a combination of public transit, my bike, and my own two feet. But I'm an exception. In the U.S., the vehicle miles travelled per person is actually twice as high as it is in Western Europe and three times higher than in Japan. However, alternatives to using your car have a wealth of benefits. In addition to reducing petroleum consumption, they can lower greenhouse gas emissions, improve air quality, decrease stress, and bring communities together. Fortunately, there are a variety of ways to minimize the distance

Note: This page contains sample records for the topic "heating machine drive" 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

Heat exchanger  

DOE Patents [OSTI]

A heat exchanger comparising a shell attached at its open end to one side of a tube sheet and a detachable head connected to the other side of said tube sheet. The head is divided into a first and second chamber in fluid communication with a nozzle inlet and nozzle outlet, respectively, formed in said tube sheet. A tube bundle is mounted within said shell and is provided with inlets and outlets formed in said tube sheet in communication with said first and second chambers, respectively.

Brackenbury, Phillip J. (Richland, WA)

1986-01-01T23:59:59.000Z

482

Heat exchanger  

DOE Patents [OSTI]

A heat exchanger comparising a shell attached at its open end to one side of a tube sheet and a detachable head connected to the other side of said tube sheet. The head is divided into a first and second chamber in fluid communication with a nozzle inlet and nozzle outlet, respectively, formed in said tube sheet. A tube bundle is mounted within said shell and is provided with inlets and outlets formed in said tube sheet in communication with said first and second chambers, respectively.

Brackenbury, P.J.

1983-12-08T23:59:59.000Z

483

International Conference on Machine Control & Guidance 2008 1 Automatic Guidance of Track Laying Machines with  

E-Print Network [OSTI]

1st International Conference on Machine Control & Guidance 2008 1 Automatic Guidance of Track Laying Machines with Respect to Coordinate Systems Th. ENGEL*, JJ. STUBY, Ch. GLAUSER, P. GÃ?LDENAPFEL machine guidance, this text focuses on presenting and solving three challenges without which coordinate

484

International Conference on Machine Control & Guidance 2008 1 Guidance for Partial Face Excavation Machines  

E-Print Network [OSTI]

1st International Conference on Machine Control & Guidance 2008 1 Guidance for Partial Face Excavation Machines Nod CLARKE-HACKSTON, Jochen BELZ VMT GmbH Allan HENNEKER Surex Pty Ltd Abstract information to the machine operator, VMT GmbH has developed a system to support precise excavation

485

Automation of facility management processes using machine-to-machine technologies  

Science Journals Connector (OSTI)

The emergence of machine-to-machine (M2M) technologies as a business opportunity is based on the observation that there are many more machines and objects in the world than people and that an everyday object has more value when it is networked. In this ...

Sudha Krishnamurthy; Omer Anson; Lior Sapir; Chanan Glezer; Mauro Rois; Ilana Shub; Kilian Schloeder

2008-03-01T23:59:59.000Z

486

NREL: Vehicle Ancillary Loads Reduction - Heat Generated Cooling  

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

Heat Generated Cooling Heat Generated Cooling A counterintuitive but promising path to reducing the loads imposed by automotive air conditioning systems is to use heat-specifically the waste heat generated by engines. This can be an abundant source of energy, since most light-duty vehicles with combustion engines are only about 30% efficient at best. With that degree of thermal efficiency, an engine releases 70% of its fuel energy as waste heat through the coolant, exhaust gases, and engine compartment warm-up. During much of a typical drive cycle, the engine efficiency is even lower than 30%. As efficiency decreases, the amount of waste heat increases, representing a larger potential energy source. NREL's Vehicle Ancillary Loads Reduction (VALR) team is investigating a number of heat generated cooling technologies

487

Microsoft Word - ORNL Hard Drives Final 08132010  

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

Inspections and Special Inquires Inspections and Special Inquires Inspection Report Internal Controls over Computer Hard Drives at the Oak Ridge National Laboratory INS-O-10-03 August 2010 Department of Energy Washington, DC 20585 August 16, 2010 MEMORANDUM FOR THE DIRECTOR, OFFICE OF SCIENCE FROM: Sandra D. Bruce Assistant Inspector General for Inspections and Special Inquiries SUBJECT: INFORMATION: Inspection Report on "Internal Controls over Computer Hard Drives at the Oak Ridge National Laboratory" BACKGROUND The Department of Energy's (Department) Oak Ridge National Laboratory (ORNL) in Oak

488

Tumor Eradication in the Rabbit by Radiofrequency Heating  

Science Journals Connector (OSTI)

...the tumor. At 47 ,this was reflected in edema of the foot or areas of thrombosis in the tumor or overlying tissues...because the relationships between machine-gener ated power and power consumed by heated tissue are com plex (34,35...

J. A. Dickson; S. A. Shah; D. Waggott; and W. B. Whalley

1977-07-01T23:59:59.000Z

489

Electron-cyclotron heating and associated parallel cooling  

Science Journals Connector (OSTI)

We have observed experimentally that during electron-cyclotron heating the electron longitudinal temperature drops as the perpendicular temperature increases. The experiment was carried out in a linear mirror machine with a low-density (1010 cm-3) weakly ionized (?1.0%) plasma.

C. da C. Rapozo; A. S. de Assis; J. Busnardo-Neto

1990-07-15T23:59:59.000Z

490

Turbulence characteristics of electron cyclotron and ohmic heated discharges  

E-Print Network [OSTI]

Turbulence characteristics of electron cyclotron (EC) and ohmic heated (OH) discharges has been analyzed by electrostatic gyrokinetic simulations with GYRO [J. Candy, R.E. Waltz, Journal of Computational Physics 186, 545-581 (2003)] aiming to find insights into the effect of auxiliary heating on the transport. Trapped electron modes are found to be unstable in both OH and the EC heated scenarios. In the OH case the main drive is from the density gradient and in the EC case from the electron temperature gradient. The growth rates and particle fluxes exhibit qualitatively different scaling with the electron-to-ion temperature ratios in the two cases. This is mainly due to the fact that the dominant drives and the collisionalities are different. The inward flow velocity of impurities and the impurity diffusion coefficient decreases when applying EC heating, which leads to lower impurity peaking, consistently with experimental observations.

Pusztai, Istvan; Fulop, Tunde; Timchenko, Natalia

2011-01-01T23:59:59.000Z

491

Characteristics of microinstabilities in electron cyclotron and ohmic heated discharges  

SciTech Connect (OSTI)

Characteristics of microinstabilities in electron cyclotron (EC) and ohmic heated (OH) discharges in the T10 tokamak have been analyzed by linear electrostatic gyrokinetic simulations with gyro[J. Candy and R. E. Waltz, J. Comput. Phys. 186, 545 (2003)] aiming to find insights into the effect of auxiliary heating on the transport. Trapped electron modes are found to be unstable in both OH and the EC heated scenarios. In the OH case the main drive is from the density gradient and in the EC case from the electron temperature gradient. The growth rates and particle fluxes exhibit qualitatively different scaling with the electron-to-ion temperature ratios in the two cases. This is mainly due to the fact that the dominant drives and the collisionalities are different. The inward flow velocity of impurities and the impurity diffusion coefficient decreases when applying EC heating, which leads to lower impurity peaking, consistently with experimental observations.

Pusztai, I.; Moradi, S.; Fueloep, T. [Department of Applied Physics, Nuclear Engineering, Chalmers University of Technology and Euratom-VR Association, Goeteborg (Sweden); Timchenko, N. [Institute of Tokamak Physics, NRC ''Kurchatov Institute,'' 123182, Kurchatov Sq. 1, Moscow (Russian Federation)

2011-08-15T23:59:59.000Z

492

E-Print Network 3.0 - adjustable electric drives Sample Search...  

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

drives Search Powered by Explorit Topic List Advanced Search Sample search results for: adjustable electric drives...

493

Alpha Heating in ITER L-mode and H-mode Plasma  

SciTech Connect (OSTI)

There are many uses of predictions of ITER plasma performance. One is assessing requirements of different plasma regimes. For instance, what current drive and control are needed for steady state. The heating, current drive, and torque systems planned for initial DT operation are negative ion neutral beam injection (NB), ion cyclotron resonance (IC), and electron cyclotron resonance (EC). Which combinations of heating are optimal. What are benefits of the torques, current drive, and fueling using NB. What are the shine-through power and optimum voltage for the NB? What are optimal locations and aiming of the EC launchers? Another application is nuclear licensing (e.g. System integrity, how many neutrons).

R.V. Budny

2011-07-18T23:59:59.000Z

494

Air-Cooled Traction Drive Inverter  

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

the high temperature operating capability of wide bandgap (WBG) devices. New low-loss Si IGBTs. Innovative heat sink design minimizes the thermal resistance. Fewer...

495

Quantum Cloning Machines and the Applications  

E-Print Network [OSTI]

No-cloning theorem is fundamental for quantum mechanics and for quantum information science that states an unknown quantum state cannot be cloned perfectly. However, we can try to clone a quantum state approximately with the optimal fidelity, or instead, we can try to clone it perfectly with the largest probability. Thus various quantum cloning machines have been designed for different quantum information protocols. Specifically, quantum cloning machines can be designed to analyze the security of quantum key distribution protocols such as BB84 protocol, six-state protocol, B92 protocol and their generalizations. Some well-known quantum cloning machines include universal quantum cloning machine, phase-covariant cloning machine, the asymmetric quantum cloning machine and the probabilistic quantum cloning machine etc. In the past years, much progress has been made in studying quantum cloning machines and their applications and implementations, both theoretically and experimentally. In this review, we will give a complete description of those important developments about quantum cloning and some related topics. On the other hand, this review is self-consistent, and in particular, we try to present some detailed formulations so that further study can be taken based on those results.

Heng Fan; Yi-Nan Wang; Li Jing; Jie-Dong Yue; Han-Duo Shi; Yong-Liang Zhang; Liang-Zhu Mu

2014-08-02T23:59:59.000Z

496

Performance of machines for lattice QCD simulations  

E-Print Network [OSTI]

We review the architecture of massively parallel machines used for lattice QCD simulations and present benchmarks for the performance of popular algorithms on these platforms. We cover commercial supercomputers, PC clusters, and custom-designed machines. We also speculate on future developments.

Tilo Wettig

2005-09-23T23:59:59.000Z

497

Chaotic Boltzmann machines with two elements  

E-Print Network [OSTI]

In this brief note, we show that chaotic Boltzmann machines truly yield samples from the probabilistic distribution of the corresponding Boltzmann machines if they are composed of only two elements. This note is an English translation (with slight modifications) of the article originally written in Japanese [H. Suzuki, Seisan Kenkyu 66 (2014), 315-316].

Hideyuki Suzuki

2015-01-28T23:59:59.000Z

498

STOCHASTIC SCHEDULING WITH PREEMPTIVE-REPEAT MACHINE  

E-Print Network [OSTI]

at the point where it was interrupted once the machine becomes operable again+ In the preemptive-repeat model processing will have to restart after the machine resumes its operation+ A significant number of results have is in a metal refinery in which the raw material is to be purified by melting it in a very high temperature

Sun, Xiaoqian

499

Segmented heat exchanger  

DOE Patents [OSTI]

A segmented heat exchanger system for transferring heat energy from an exhaust fluid to a working fluid. The heat exchanger system may include a first heat exchanger for receiving incoming working fluid and the exhaust fluid. The working fluid and exhaust fluid may travel through at least a portion of the first heat exchanger in a parallel flow configuration. In addition, the heat exchanger system may include a second heat exchanger for receiving working fluid from the first heat exchanger and exhaust fluid from a third heat exchanger. The working fluid and exhaust fluid may travel through at least a portion of the second heat exchanger in a counter flow configuration. Furthermore, the heat exchanger system may include a third heat exchanger for receiving working fluid from the second heat exchanger and exhaust fluid from the first heat exchanger. The working fluid and exhaust fluid may travel through at least a portion of the third heat exchanger in a parallel flow configuration.

Baldwin, Darryl Dean (Lafayette, IN); Willi, Martin Leo (Dunlap, IL); Fiveland, Scott Byron (Metamara, IL); Timmons, Kristine Ann (Chillicothe, IL)

2010-12-14T23:59:59.000Z

500

The making of driving cultures Jane Moeckli  

E-Print Network [OSTI]

and traffic safety as effects of culture. In order to understand culture's role in shaping driving behavior of culture. We argue that how the traffic safety community defines culture dictates courses of action taken traffic safety. It is our hope that these suggestions will expand the definition of culture to better

Lee, John D.