Powered by Deep Web Technologies
Note: This page contains sample records for the topic "average driving speed" 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

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.

2

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

3

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.

4

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

5

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

6

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

7

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

8

Economical Aspects of Adjustable Speed Drives in Pumping Systems  

E-Print Network [OSTI]

Speed variations of pumps have become increasingly popular as the technology to produce variable frequency drives has progressed. Variable speed drives have many advantages compared to throttle valves when it comes to regulation of flow. They offer...

Hovstadius, G.

9

Average Rate Speed Scaling Nikhil Bansal1  

E-Print Network [OSTI]

energy. In this setting, the operating system must not only have a job selection policy to determine was deadline feasibility and the objective was to minimize the energy used. More precisely, each job i has of the speed to power function, this even spreading is energy optimal if the instance consists of only one job

Bunde, David

10

Average Rate Speed Scaling Nikhil Bansal  

E-Print Network [OSTI]

energy. In this setting, the operating system must not only have a job selection policy to determine was deadline feasibility and the objective was to minimize the energy used. More precisely, each job i has of the speed to power function, this even spreading is energy optimal if the instance consists of only one job

Bunde, David

11

Fact #671: April 18, 2011 Average Truck Speeds  

Broader source: Energy.gov [DOE]

The Federal Highway Administration studies traffic volume and flow on major truck routes by tracking more than 500,000 trucks. The average speed of trucks on selected interstate highways is between...

12

Magnetically Coupled Adjustable Speed Motor Drives  

Broader source: Energy.gov [DOE]

Alternating current electric motors rotate at a nearly constant speed that is determined by motor design and line frequency. Energy savings of 50% or more may be available when fixed speed systems are modified to allow the motor speed to match variable load requirements of a centrifugal fan or pump. This tip sheet describes the advantages of magnetically coupled ASDs and provides suggested actions.

13

Minimize Adverse Motor and Adjustable Speed Drive Interactions  

Broader source: Energy.gov [DOE]

Electronic adjustable speed drives (ASDs) are extremely efficient and valuable assets to motor systems. They allow precise process control and provide energy savings within systems that do not need to operate continuously at full output. This tip sheet discusses design considerations to take into account when considering ASDs and offers suggested actions.

14

6 - Control systems for AC variable speed drives  

Science Journals Connector (OSTI)

Publisher Summary This chapter explores the control system, embodied in the control circuits. The simplest method of providing auxiliary power to the converter control circuits is from an auxiliary transformer connected to the mains. The primary need for current feedback in general purpose variable speed drives (VSDs) is inverter switching device protection. Various disadvantages of the vector controlled AC drive as compared to a DC drive are discussed in the chapter. The strategy of an AC vector control drive is to calculate the individual current vectors to eventually enable separate control of the flux current and the torque current under all speed and load conditions. The power circuit for a vector converter is almost identical to that used by a variable voltage variable frequency (VVVF) drive. High accuracy motor current feedback is also necessary to provide control of motor torque. DC bus current feedback is suitable for switching device protection and current limiting in most AC VSDs. Analog speed transducers are increasingly being replaced by digital devices, which are more compatible with modern digital control systems.

Malcolm Barnes

2003-01-01T23:59:59.000Z

15

Wavelet analysis of electric adjustable speed drive waveforms  

SciTech Connect (OSTI)

The three most common adjustable speed drives (ASDs) used in HVAC equipment, namely, pulse-width modulated (PWM) induction drive, brushless-dc drive, and switched-reluctance drive, generate non-periodic and nonstationary electric waveforms with sharp edges and transients. Deficiencies of Fourier transform methods in analysis of such ASD waveforms prompted an application of the wavelet transform. Results of discrete wavelet transform (DWT) analysis of PWM inverter-fed motor waveforms are presented. The best mother wavelet for analysis of the recorded waveforms is selected. Data compression properties of the selected mother wavelet are compared to those of the fast Fourier transform (FFT). Multilevel feature detection of ASD waveforms using the DWT is shown.

Czarkowski, D. [Polytechnic Univ., Brooklyn, NY (United States). Dept. of Electrical Engineering; Domijan, A. Jr. [Univ. of Florida, Gainesville, FL (United States). Dept. of Electrical and Computer Engineering

1998-10-01T23:59:59.000Z

16

Vehicle Technologies Office: Fact #671: April 18, 2011 Average Truck Speeds  

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

1: April 18, 1: April 18, 2011 Average Truck Speeds to someone by E-mail Share Vehicle Technologies Office: Fact #671: April 18, 2011 Average Truck Speeds on Facebook Tweet about Vehicle Technologies Office: Fact #671: April 18, 2011 Average Truck Speeds on Twitter Bookmark Vehicle Technologies Office: Fact #671: April 18, 2011 Average Truck Speeds on Google Bookmark Vehicle Technologies Office: Fact #671: April 18, 2011 Average Truck Speeds on Delicious Rank Vehicle Technologies Office: Fact #671: April 18, 2011 Average Truck Speeds on Digg Find More places to share Vehicle Technologies Office: Fact #671: April 18, 2011 Average Truck Speeds on AddThis.com... Fact #671: April 18, 2011 Average Truck Speeds The Federal Highway Administration studies traffic volume and flow on major

17

Extended cage adjustable speed electric motors and drive packages  

DOE Patents [OSTI]

The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced. 12 figs.

Hsu, J.S.

1999-03-23T23:59:59.000Z

18

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

19

High-speed gears for gas turbine drive  

SciTech Connect (OSTI)

Recently, Lufkin Industries, Power Transmission Div., full-load tested a high-speed gear designed to couple a 50 Hz electric power generator to a GE LM6000 gas turbine for a power generation project in Australia. The gear is rated 52.2 MW to match the output of the LM6000 gas turbine believed to be one of the largest gear testing operations for this type and size of gear. Each gear drive manufactured by Lufkin is full-speed tested to verify its performance. Tests performed on high-speed units duplicate field conditions, as closely as possible, in order to verify critical speed analysis results and new bearing designs, if used. Lufkin also tests design techniques used in the development of new products. The finite element analysis performed to predict housing deflection in the thrust bearing area of a new extruder driveline was verified by testing of a prototype unit housing. Recently, housing structure stiffness and natural frequencies were predicted and verified on the test stand for some 50 MW vertically offset gear units. A complete data acquisition system is used to gather data from bearing, inlet and drain temperature monitoring points. The temperature monitoring system will accommodate type T,K,J, and E thermocouples and platinum and nickel RTDs.

Kane, J.

1995-06-01T23:59:59.000Z

20

Comparing Two Types of Magnetically- Coupled Adjustable Speed Drives with Variable Frequency Drives in Pump and Fan Applications  

E-Print Network [OSTI]

This paper presents the results from laboratory tests on MagnaDrive Corporations fixed-magnet magnetically-coupled adjustable speed drive (MC-ASD) and Coyote Electronics electromagnetic MC-ASD as compared to a typical variable frequency drive (VFD...

Anderson, K. J.; Chvala, W. D.

Note: This page contains sample records for the topic "average driving speed" 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

Variable speed drive as an alternative solution for a micro-hydro power plant.  

E-Print Network [OSTI]

?? This diploma work is mainly focused on developing the control strategy for avariable speed drive as an alternative solution to a micro-hydro power plant.… (more)

Akhtar, Malik Usman

2012-01-01T23:59:59.000Z

22

Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable-Speed-Drive Chillers  

E-Print Network [OSTI]

LBNL-58636 Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable Efficient Cleanrooms Efficient HVAC Water Systems: Variable-Speed-Drive Chillers Tengfang Xu Contents HVAC.................................................................................................................................... 6 #12;HVAC Water Systems Variable-Speed-Drive Chillers Summary Cleanroom energy benchmarking data

23

Variable Speed Drive (VSD) Applications in Dual-Duct Constant Volume Systems  

E-Print Network [OSTI]

Models have been developed for static pressure and potential supply fan energy savings by using variable speed drive (VSD) in dual-duct constant volume systems. Experiments have been performed using a full size dual-duct constant volume system...

Joo, I.; Liu, M.; Conger, K.; Wang, G.

2002-01-01T23:59:59.000Z

24

Intelligent speed controller for a Switched Reluctance Motor drive using FPGA  

Science Journals Connector (OSTI)

In this paper, an FPGA-based digital speed control scheme is presented to overcome the drawbacks in the previous speed control schemes, proposed for Switched Reluctance Motor (SRM) drives. It is based on discrete control algorithm, and requires simple mathematical models. The real-time experimental results given in this paper show that the closed-loop speed control method proposed could provide accurate speed control upto 6.2 rpm depending on the needed operating speed range, with a step response settling time of 0.25-1.05 s. It can also perform accurately at different operating conditions and over a wide range of speeds. Complete descriptions of the experimental system along with FPGA implementation are presented.

S. Vijayan; S. Paramasivam

2009-01-01T23:59:59.000Z

25

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

26

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

27

United States- Land Based and Offshore Annual Average Wind Speed at 100 Meters  

Broader source: Energy.gov [DOE]

Full-size, high resolution version of the 100-meter land-based and offshore wind speed resource map.

28

Smart bacterial foraging algorithm based controller for speed control of switched reluctance motor drives  

Science Journals Connector (OSTI)

Abstract In this paper, a innovative methodology for Switched Reluctance Motor (SRM) drive control using Smart Bacterial Foraging Algorithm (SBFA) is presented. This method mimics the chemotactic behavior of the E. Coli bacteria for optimization. The proposed algorithm uses individual and social intelligences, so that it can search responses among local optimums of the problem adaptively. This method is used to tune the coefficients of a conventional Proportion–Integration (PI) speed controller for SRM drives with consideration of torque ripple reduction. This matter is done by applying the proposed algorithm to a multi-objective function including both speed error and torque ripple. This drive is implemented using a DSP-based (TMS320F2812) for an 8/6, 4-kW SRM. The simulation and experimental results confirm the improved performance of adjusted PI controller using SBFA in comparison with adjusted PI controller using standard BFA. Excellent dynamic performance, reduced torque ripple and current oscillation can be achieved when the coefficients of PI controller are optimized by using SBFA.

Ehsan Daryabeigi; Behzad Mirzaeian Dehkordi

2014-01-01T23:59:59.000Z

29

Average Rate Speed Scaling # Nikhil Bansal 1 , David P. Bunde 2 , HoLeung Chan 3 , and Kirk Pruhs 3  

E-Print Network [OSTI]

of such a processor to conserve energy. In this setting, the operating system must not only have a job selection to conserve energy and optimize some Quality of Service (QoS) measure of the resulting schedule. Yao, Demers is to minimize the energy used. They proposed an online speed scaling algorithm Average Rate (AVR) that runs each

Bunde, David

30

Nonsinusoidal electrical measurement accuracy in adjustable-speed motors and drives  

SciTech Connect (OSTI)

Accurate measurements of voltage, current, and power under nonsinusoidal conditions are essential for determining the efficiency of a drive system and performing separation of losses between an adjustable-speed drive (ASD) and an electric motor. That information is invaluable for equipment designers, manufacturers, and users. Three modern power meters and analyzers were tested to determine their accuracy with various nonsinusoidal waveforms applied. The meters were subjected to waveforms that are characteristic to the three most common fractional and integral horsepower ASD technologies, namely, pulsewidth modulation induction, brushless dc, and switched-reluctance drives. The tests were performed under field conditions and in a computer-controlled laboratory environment. The obtained results show that some meters are able to measure accurately electric power at the input to ASD`s. However, the output power of ASD`s for brushless dc and switched-reluctance technology was not measured with acceptable accuracy by any of the tested meters. Possible reasons of meters inaccuracies and suggestions for performance improvement are presented. Conclusions on the present state of ASD electric power measurements and recommendations for further research are given.

Domijan, A. [Univ. of Florida, Gainesville, FL (United States)] [Univ. of Florida, Gainesville, FL (United States); Czarkowski, D. [Polytechnic Univ., Brooklyn, NY (United States). Dept. of Electrical Engineering] [Polytechnic Univ., Brooklyn, NY (United States). Dept. of Electrical Engineering; Johnson, J.H. [J.H. Johnson Associates, Inc., Tipp City, OH (United States)] [J.H. Johnson Associates, Inc., Tipp City, OH (United States)

1998-11-01T23:59:59.000Z

31

Performance of electric power meters and analyzers in adjustable-speed drive applications  

SciTech Connect (OSTI)

Electric adjustable-speed drives (ASDs) are increasingly used in heating, ventilating, and air-conditioning (HVAC) equipment due to the energy savings and comfort of operation they offer. Power electronic circuits that are employed in ASDs shape their input and output voltage and current waveforms, making them highly distorted from typical power-grid sinusoids. Accurate measurements of voltage, current, and power under nonsinusoidal conditions are essential for determining the efficiency of an HVAC unit and performing separation of losses between an ASD and an electric motor. That information is invaluable for HVAC equipment designers, manufacturers, and users. Three modern power meters and analyzers were tested to determine their accuracy with various nonsinusoidal waveforms applied. The meters were subjected to waveforms that are produced by the three most common ASD technologies used in air conditioners and heat pumps, namely, PWM induction, DC-brushless, and switched-reluctance drives. The tests were performed under field conditions and in a computer-controlled laboratory environment. The results obtained show that some meters can accurately measure electric power at the input to ASDs. However, the output power of ASDs for DC-brushless and switched-reluctance technology was not measured with acceptable accuracy by any of the tested meters. Possible reasons for meter inaccuracies and suggestions for performance improvement are given.

Czarkowski, D.; Domijan, A. Jr. [Univ. of Florida, Gainesville, FL (United States). Dept. of Electrical and Computer Engineering

1997-12-31T23:59:59.000Z

32

Measurable energy savings of installing variable frequency drives for cooling towers’ fans, compared to dual speed motors  

Science Journals Connector (OSTI)

Abstract In recent years the building management system (BMS) controllers have been used to control the operation of heating, ventilation, and air conditioning system in addition to lighting and some electrical equipment in order to save energy. In the water cooled system, the BMS controls the operation process of the cooling towers (CTs) fans of dual speed motors to maintain a constant leaving water temperature for different cooling loads and different ambient wet bulb temperature (WBT). This paper presents the effect of installing variable frequency drives (VFDs) for \\{CTs\\} fans in Kuwait during summer season on energy savings compared to dual speed control. The results have shown that with VFD mode, the reduction in water consumption was over 13% compared to the commonly used dual speed mode. More importantly, the combined power for the chillers and the \\{CTs\\} fans for the same amount of cooling produced were reduced by 5.8% in the VFD mode.

E. Al-Bassam; R. Alasseri

2013-01-01T23:59:59.000Z

33

Optimization of direct drive induction motors for electric ship propulsion with high speed propellers  

Science Journals Connector (OSTI)

Direct drive electric ship propulsion can offer increased flexibility and reduced overall fuel consumption compared to geared mechanical systems [Davis 1987, Doerry 2007]. As a well-established technology, induction motors are a dependable and economical ... Keywords: AC motors, induction motor drives, induction motors, thermal analysis

S. C. Englebretson; J. L. Kirtley, Jr; C. Chryssostomidis

2009-07-01T23:59:59.000Z

34

Damage measurements on the NWTC direct-drive, variable-speed test bed  

SciTech Connect (OSTI)

The NWTC (National Wind Technology Center) Variable-Speed Test Bed turbine is a three-bladed, 10-meter, downwind machine that can be run in either fixed-speed or variable-speed mode. In the variable-speed mode, the generator torque is regulated, using a discrete-stepped load bank to maximize the turbine`s power coefficient. At rated power, a second control loop that uses blade pitch to maintain rotor speed essentially as before, i.e., using the load bank to maintain either generator power or (optionally) generator torque. In this paper, the authors will use this turbine to study the effect of variable-speed operation on blade damage. Using time-series data obtained from blade flap and edge strain gauges, the load spectrum for the turbine is developed using rainflow counting techniques. Miner`s rule is then used to determine the damage rates for variable-speed and fixed-speed operation. The results illustrate that the controller algorithm used with this turbine introduces relatively large load cycles into the blade that significantly reduce its service lifetime, while power production is only marginally increased.

Sutherland, H.J. [Sandia National Lab., Albuquerque, NM (United States); Carlin, P.W. [National Renewable Energy Lab., Golden, CO (United States)

1998-12-31T23:59:59.000Z

35

High-performance prediction for variable-speed switched reluctance drives  

SciTech Connect (OSTI)

This work presents a simple developed nonlinear dynamic model of variable reluctance motor (VRM) based on its magnetic characteristics, considering the saturation effect. Most preliminary design work is centered on a fixed speed, or a small number of fixed speeds, even when the requirement is for operation over a wide speed range. This work deals with both constant and variable speed operation. Model development is motivated by the good performance predictions required to support and simplify the design of a high performance controller. Because the magnetization curves do not need to be pre-calculated, measured, stored, curve-fitted, or idealized the model is extremely simple, fast, and accurate. Simulation results of the phase current and torque on both chopping and single-pulse mode of operations are presented.

Ismail, F. [Cairo Univ. (Egypt); Wahsh, S.; Mohamed, A.Z. [Electronics Research Inst., Giza (Egypt)

1997-12-31T23:59:59.000Z

36

Long-term-average, solar cycle, and seasonal response of magnetospheric energetic electrons to the solar wind speed  

E-Print Network [OSTI]

to the solar wind speed D. Vassiliadis,1 A. J. Klimas,2 S. G. Kanekal,3 D. N. Baker,3 and R. S. Weigel4. [1] Among the interplanetary activity parameters the solar wind speed is the one best correlated, and seasonal response of magnetospheric energetic electrons to the solar wind speed, J. Geophys. Res., 107(A11

Vassiliadis, Dimitrios

37

FPGA based neural network position and speed estimator for switched reluctance motor drive  

Science Journals Connector (OSTI)

This paper presents the design and implementation of the sensorless control system for the Switched Reluctance Motor (SRM) drive without a position sensor. The SRM has been receiving attention for industry applications due to its low cost in mass production, ... Keywords: position estimation, resistance estimation, switched reluctance motor

Jakub Talla; Josef Stehlik

2008-12-01T23:59:59.000Z

38

Low speed control of a DC motor driving a mechanical system with fuzzy adaptive compensation  

E-Print Network [OSTI]

both dry and lubricated sliding junctions. For experiments, an IBM PC, a dSPACE DSP board, SIMULINK and Real Time Workshop are used. All three control systems can achieve such a very low sustainable speed as 0. 005 rad/sec without stick... Suggestions . REFERENCES 48 49 51 52 APPENDIX A SIMULINK PROGRAMS. 55 APPENDIX B INSTALLATION PROCEDURE OF THEdSPACE DSP BOARD . 59 VITA 61 LIST OF FIGURES FIGURE Page I Common friction models 10 2 Stribeck Iriction-speed curve 12 3 Partial fluid...

Hyun, Dongyoon

2012-06-07T23:59:59.000Z

39

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

40

The effect of TMP refining using an adjustable-speed drive on energy consumption and pulp quality. [ThermoMechanical Pulp  

SciTech Connect (OSTI)

An experimental investigation was conducted to study the effect of TMP refining using adjustable-speed drive (ASD) on energy consumption and pulp quality. The project is based on the studies of disc refiner models at high- and low-consistency refining. The primary objectives is to examine the potential energy efficiency improvement of a TMP system by evaluating the effect of TMP refining using ASD in pilot scale at the Center for High Yield Pulping Science. The pilot experimental results show that certain benefits of TMP refining using ASD can be obtained. Preliminary results demonstrate that increasing the first stage of refining speed reduces electrical energy at similar pulp quality.

Su, W.; Hsieh, J. (Georgia Inst. of Technology, Atlanta, GA (United States))

1994-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "average driving speed" 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

Adjustable Speed Pumping Applications  

Broader source: Energy.gov [DOE]

This tip sheet provides practical tips on the application of adjustable speed drives in industrial pumping systems.

42

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...

43

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

44

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.

45

Control device for vehicle speed  

SciTech Connect (OSTI)

This patent describes a control device for vehicle speed comprising: a throttle driving means operatively coupled to a throttle valve of a vehicle; a set switch means for commanding memorization of the vehicle speed; a resume switch means for commanding read of the vehicle speed; a vehicle speed detecting means for generating a signal in accordance with the vehicle speed; a vehicle speed memory; an electronical control means for memorizing in the vehicle speed memory vehicle speed information corresponding to the signal obtained from the vehicle speed detecting means in response to actuation of the set switch means. The control means is also for reading out the content of the vehicle speed memory in response to actuation of the resume switch means to control the throttle driving means in accordance with the read-out content; a power supply means for supplying power to the electronical control means; and a power supply control switch means for controlling supply of power to the electronical control means in response to the state of at least one of the set switch means and the resume switch means and the state of the electronical control means. The improvement described here comprises the electronical control means sets the power supply control switch means into such a state that supply of power to the electronical control means is turned OFF, when vehicle speed information is not memorized in the vehicle speed memory.

Kawata, S.; Hyodo, H.

1987-03-03T23:59:59.000Z

46

Adjustable Speed Drive Power Quality Evaluation Program  

E-Print Network [OSTI]

of Detroit Edison provided administrative guidance. 3 #12;From G. Strangas Michigan State University East Lansing, MI 48824 4 June 1996 #12;Contents 1 Introduction sag disruption is a very common problem. Michigan State University undertook a project, funded

Strangas, Elias G.

47

Adjustable Speed Drive Part-Load Efficiency  

SciTech Connect (OSTI)

This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

Not Available

2008-07-01T23:59:59.000Z

48

Snubber circuit designed for electric car drive system  

Science Journals Connector (OSTI)

This article presents a method to develop the speed-controller dc-motor chopper drive system by using mosfet as the switching drive for motor speed control. The switching current during ton state, and toff state of the mosfet can cause power ... Keywords: chopper, electric drive, mosfet, parallel connected, power dissipation, snubber circuit

Sakrawee Raweekul

2012-01-01T23:59:59.000Z

49

Full Hybrid: Low Speed  

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

highlighted Cruising button Passing button Braking button Stopped button highlighted Cruising button Passing button Braking button Stopped button LOW SPEED For initial acceleration and slow-speed driving, as well as reverse, the electric motor uses electricity from the battery to power the vehicle. If the battery needs to be recharged, the generator starts the engine and converts energy from the engine into electricity, which is stored in the battery. stage graphic: vertical blue rule Main stage: See through car with battery, engine, generator, power split device, and electric motor visible. The car is moving at a low speed. There are arrows flowing from the battery to the electric motor to the power split device to the front wheels. Main stage: See through car with battery, engine, generator, power split device, and electric motor visible. The car is moving at a low speed. There are arrows flowing from the battery to the electric motor to the power split device to the front wheels.

50

Average Residential Price  

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

Data Series: Average Residential Price Residential Price - Local Distribution Companies Residential Price - Marketers Residential % Sold by Local Distribution Companies Average...

51

Is it Cost-Effective to Replace Old Eddy-Current Drives? | Department...  

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

Is it Cost-Effective to Replace Old Eddy-Current Drives? Is it Cost-Effective to Replace Old Eddy-Current Drives? New pulse-width-modulated (PWM) adjustable speed drives (ASDs) may...

52

Adjustable Speed Pumping Applications: Industrial Technologies Program (ITP) Pumping Systems Tip Sheet #11  

SciTech Connect (OSTI)

This two-page tip sheet provides practical tips on application of Adjustable Speed Drives in industrial settings.

Not Available

2007-01-01T23:59:59.000Z

53

Technological Advances in Hydraulic Drive Trains for Wind Turbines  

Science Journals Connector (OSTI)

The reliability of frequency converters is a major concern for wind turbines. ChapDrive AS has built and tested a hydraulic drive train for variable speed wind turbines which includes a synchronous generator that is connected to the grid without the use of a frequency converter. The hydraulic drive train consists of a hydraulic pump, a variable displacement hydraulic motor, and a synchronous generator, which enables rotor speed control while maintaining synchronous speed of the generator. It has been proven that the hydraulic drive train and the ChapDrive Control system are able to absorb fluctuations in the wind speed and maintain a constant power output without the use of frequency converters. The hydraulic drive train and the ChapDrive Control system has been modeled analytically and compared to measurements, demonstrating a good agreement between simulations and measurements.

K.E.Thomsen; O.G. Dahlhaug; M.O.K. Niss; S.K. Haugset

2012-01-01T23:59:59.000Z

54

Sensorless Speed Control of Permanent Magnet-Assisted Synchronous Reluctance Motor (PMa-SynRM)  

E-Print Network [OSTI]

An interesting alternative for today's high efficiency variable speed drives is the Permanent Magnet-Assisted Synchronous Reluctance Motor drive, which belongs to the family of brushless synchronous AC motor drives. Generally, the reluctance torque...

Chakali, Anil K.

2011-02-22T23:59:59.000Z

55

Unimodular Gravity and Averaging  

E-Print Network [OSTI]

The question of the averaging of inhomogeneous spacetimes in cosmology is important for the correct interpretation of cosmological data. In this paper we suggest a conceptually simpler approach to averaging in cosmology based on the averaging of scalars within unimodular gravity. As an illustration, we consider the example of an exact spherically symmetric dust model, and show that within this approach averaging introduces correlations (corrections) to the effective dynamical evolution equation in the form of a spatial curvature term.

A. Coley; J. Brannlund; J. Latta

2011-02-16T23:59:59.000Z

56

Laser Fusion Energy The High Average Power  

E-Print Network [OSTI]

Laser Fusion Energy and The High Average Power Program John Sethian Naval Research Laboratory Dec for Inertial Fusion Energy with lasers, direct drive targets and solid wall chambers Lasers DPPSL (LLNL) Kr posters Snead Payne #12;Laser(s) Goals 1. Develop technologies that can meet the fusion energy

57

HFAG Charm Mixing Averages  

E-Print Network [OSTI]

Recently the first evidence for charm mixing has been reported by several experiments. To provide averages of these mixing results and other charm results, a new subgroup of the Heavy Flavor Averaging Group has been formed. We here report on the method and results of averaging the charm mixing results.

B. Aa. Petersen

2007-12-10T23:59:59.000Z

58

Measured speed versus true speed  

E-Print Network [OSTI]

The theoretical predictions, derived from the Lorentz and the Tangherlini transformations, for the one-way speed of any physical entity are confronted with the corresponding expressions for the one-way measured speed obtained from a gedanken experiment. The experiment demonstrates that, for an inertial frame $K'$ in motion relative to an inertial frame $K$ where the one-way speed of light is isotropic, even the special theory of relativity renders the one-way speed of light as function of the velocity of $K'$ in agreement with the Tangherlini transformations. However, the two-way speed of light remains constant for all inertial frames, in agreement with the two-way experimental techniques. This implies that there must exist \\emph{one and only one} inertial frame where the one-way speed of light is isotropic. These investigations also show how we can determine, with certain restrictions, the true speed of a physical entity and of the true speed of $K'$ relative to $K$.

Israel Perez

2010-05-10T23:59:59.000Z

59

Extending the Constant Power Speed Range of the Brushless DC Motor through Dual Mode Inverter Control -- Part I: Theory and Simulation  

SciTech Connect (OSTI)

An inverter topology and control scheme has been developed that can drive low-inductance, surface-mounted permanent magnet motors over the wide constant power speed range required in electric vehicle applications. This new controller is called the dual-mode inverter control (DMIC) [1]. The DMIC can drive either the Permanent Magnet Synchronous Machine (PMSM) with sinusoidal back emf, or the brushless dc machine (BDCM) with trapezoidal emf in the motoring and regenerative braking modes. In this paper we concentrate on the BDCM under high-speed motoring conditions. Simulation results show that if all motor and inverter loss mechanisms are neglected, the constant power speed range of the DMIC is infinite. The simulation results are supported by closed form expressions for peak and rms motor current and average power derived from analytical solution to the differential equations governing the DMIC/BDCM drive for the lossless case. The analytical solution shows that the range of motor inductance that can be accommodated by the DMIC is more than an order of magnitude such that the DMIC is compatible with both low- and high-inductance BDCMs. Finally, method is given for integrating the classical hysteresis band current control, used for motor control below base speed, with the phase advance of DMIC that is applied above base speed. The power versus speed performance of the DMIC is then simulated across the entire speed range.

Lawler, J.S.

2001-10-29T23:59:59.000Z

60

Real-world fuel consumption and CO2 (carbon dioxide) emissions by driving conditions for light-duty passenger vehicles in China  

Science Journals Connector (OSTI)

Abstract The increasing discrepancy between on-road and type-approval fuel consumption for \\{LDPVs\\} (light-duty passenger vehicles) has attracted tremendous attention. We measured on-road emissions for 60 \\{LDPVs\\} in three China's cities and calculated their fuel consumption and CO2 (carbon dioxide) emissions. We further evaluated the impacts of variations in area-averaged speed on relative fuel consumption of gasoline \\{LDPVs\\} for the UAB (urban area of Beijing). On-road fuel consumption under the average driving pattern is 10 ± 2% higher than that normalized to the NEDC (new European driving cycle) cycle for all tested vehicles, and the on-road NEDC-normalized fuel consumption is higher by 30 ± 12% compared to type-approval values for gasoline vehicles. We observed very strong correlations between relative fuel consumption and average speed. Traffic control applied to \\{LDPVs\\} driving within the UAB during weekdays can substantially reduce total fleet fuel consumption by 23 ± 5% during restriction hours by limiting vehicle use and improving driving conditions. Our results confirmed that a new cycle for the type approval test for \\{LDPVs\\} with more real-world driving features is of great necessity. Furthermore, enhanced traffic control measures could play an important role in mitigating real-world fuel consumption and CO2 emissions for \\{LDPVs\\} in China.

Shaojun Zhang; Ye Wu; Huan Liu; Ruikun Huang; Puikei Un; Yu Zhou; Lixin Fu; Jiming Hao

2014-01-01T23:59:59.000Z

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


61

United States Wind Resource Map: Annual Average Wind Speed at...  

Wind Powering America (EERE)

5.5 5.0 4.5 4.0 < 4.0 Source: Wind resource estimates developed by AWS Truepower, LLC. Web: http:www.awstruepower.com. Map developed by NREL. Spatial resolution of wind...

62

United States Wind Resource Map: Annual Average Wind Speed at...  

Wind Powering America (EERE)

4.0 Source: Wind resource estimates developed by AWS Truepower, LLC for windNavigator . Web: http:www.windnavigator.com | http:www.awstruepower.com. Spatial resolution of wind...

63

Active control system for high speed windmills  

DOE Patents [OSTI]

A pump stroke is matched to the operating speed of a high speed windmill. The windmill drives a hydraulic pump for a control. Changes in speed of a wind driven shaft open supply and exhaust valves to opposite ends of a hydraulic actuator to lengthen and shorten an oscillating arm thereby lengthening and shortening the stroke of an output pump. Diminishing wind to a stall speed causes the valves to operate the hydraulic cylinder to shorten the oscillating arm to zero. A pressure accumulator in the hydraulic system provides the force necessary to supply the hydraulic fluid under pressure to drive the actuator into and out of the zero position in response to the windmill shaft speed approaching and exceeding windmill stall speed. 4 figs.

Avery, D.E.

1988-01-12T23:59:59.000Z

64

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.

65

average | OpenEI  

Open Energy Info (EERE)

average average Dataset Summary Description This dataset is part of a larger internal dataset at the National Renewable Energy Laboratory (NREL) that explores various characteristics of large solar electric (both PV and CSP) facilities around the United States. This dataset focuses on the land use characteristics for solar facilities that are either under construction or currently in operation. Source Land-Use Requirements for Solar Power Plants in the United States Date Released June 25th, 2013 (7 months ago) Date Updated Unknown Keywords acres area average concentrating solar power csp Density electric hectares km2 land land requirements land use land-use mean photovoltaic photovoltaics PV solar statistics Data application/vnd.openxmlformats-officedocument.spreadsheetml.sheet icon Master Solar Land Use Spreadsheet (xlsx, 1.5 MiB)

66

wind speed | OpenEI  

Open Energy Info (EERE)

speed speed Dataset Summary Description GIS data for offshore wind speed (meters/second). Specified to Exclusive Economic Zones (EEZ).Wind resource based on NOAA blended sea winds and monthly wind speed at 30km resolution, using a 0.11 wind sheer to extrapolate 10m - 90m. Annual average >= 10 months of data, no nulls. Source National Renewable Energy Laboratory (NREL) Date Released Unknown Date Updated Unknown Keywords GIS global NOAA NREL offshore wind wind speed Data application/zip icon Download Shapefile (zip, 18.5 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Other or unspecified, see optional comment below Comment Please cite NREL and NOAA Rate this dataset Usefulness of the metadata

67

Design and testing of a sensorless switched reluctance motor drive with a custom integrated circuit controller  

E-Print Network [OSTI]

presents a breadboard level SRM drive that emirates a custom IC controller implementing closedloop speed control and starting torque.The rotor position sensing information is essential for determining the switching instants to have proper control of speed...

Zhang, Yingxia

2012-06-07T23:59:59.000Z

68

A motor drive control system for the Lidar Polarimeter  

E-Print Network [OSTI]

and Quantitative Account Gear-Train Servo Error Types. IV. DC VARIABLE SPEED MOTOR DRIVE DESIGN CONSIDERATIONS AND RFALIZATION. Introduction. 27 29 30 30 34 34 Design Consideration. The DC Power Amplifier. System Operation. Scan System Alignment... and Quantitative Account Gear-Train Servo Error Types. IV. DC VARIABLE SPEED MOTOR DRIVE DESIGN CONSIDERATIONS AND RFALIZATION. Introduction. 27 29 30 30 34 34 Design Consideration. The DC Power Amplifier. System Operation. Scan System Alignment...

Leung, Waiming

2012-06-07T23:59:59.000Z

69

Oscillation control system for electric motor drive  

DOE Patents [OSTI]

A feedback system for controlling mechanical oscillations in the torsionally complaint drive train of an electric or other vehicle. Motor speed is converted in a processor to estimate state signals in which a plant model which are used to electronically modify thetorque commands applied to the motor.

Slicker, James M. (Union Lake, MI); Sereshteh, Ahmad (Union Lake, MI)

1988-01-01T23:59:59.000Z

70

DOE Average Results  

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

DOE DOE Average Results FY 12 DOE Target FY 12 Customer Perspective: Customer Satisfaction: -Timeliness 92 88 -Quality 94 92 Effective Service Partnership: -Extent of Customer Satisfaction with the responsiveness, etc. 90 92 Internal Business Perspective: Acquisition Excellence: -Extent to which internal quality control systems are effective 90 88 Most Effective Use of Contracting Approaches to Maximize Efficiency and Cost Effectiveness: Use of Competition: -% of total $'s obligated on competitive acquisitions >$3000 (Agency Level Only) 94 85 -% of acquisition actions competed for actions > $3000 (Agency Level Only) 65 68 Performance Based Acquisition: - % PBA actions relative to total eligible new acquisition actions (applicable to new actions > $25K) 82

71

Electric vehicle drive train with direct coupling transmission  

DOE Patents [OSTI]

An electric vehicle drive train includes an electric motor and an associated speed sensor, a transmission operable in a speed reduction mode or a direct coupled mode, and a controller responsive to the speed sensor for operating the transmission in the speed reduction mode when the motor is below a predetermined value, and for operating the motor in the direct coupled mode when the motor speed is above a predetermined value. The controller reduces the speed of the motor, such as by regeneratively braking the motor, when changing from the speed reduction mode to the direct coupled mode. The motor speed may be increased when changing from the direct coupled mode to the speed reduction mode. The transmission is preferably a single stage planetary gearbox.

Tankersley, Jerome B. (Fredericksburg, VA); Boothe, Richard W. (Roanoke, VA); Konrad, Charles E. (Roanoke, VA)

1995-01-01T23:59:59.000Z

72

Fault diagnosis and management system for switched reluctance motor drives  

Science Journals Connector (OSTI)

An effective detection and diagnosis of faults is desirable for online condition monitoring, assessment, product quality assurance and improved operational efficiency of Switched Reluctance Motor (SRM) drives. The proposed fault diagnosis and management system uses the measured phase voltages, currents and speed of the motor. In this article, a Matlab/Simulink model-based fault diagnosis system is developed and simulated for SRM drive. The simulation results show that the SRM drive is capable of operating under faulty conditions.

S. Vijayan; S. Paramasivam

2008-01-01T23:59:59.000Z

73

Americans' Average Radiation Exposure  

SciTech Connect (OSTI)

We live with radiation every day. We receive radiation exposures from cosmic rays, from outer space, from radon gas, and from other naturally radioactive elements in the earth. This is called natural background radiation. It includes the radiation we get from plants, animals, and from our own bodies. We also are exposed to man-made sources of radiation, including medical and dental treatments, television sets and emission from coal-fired power plants. Generally, radiation exposures from man-made sources are only a fraction of those received from natural sources. One exception is high exposures used by doctors to treat cancer patients. Each year in the United States, the average dose to people from natural and man-made radiation sources is about 360 millirem. A millirem is an extremely tiny amount of energy absorbed by tissues in the body.

NA

2000-08-11T23:59:59.000Z

74

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

75

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

76

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...

77

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

78

OpenEI - wind speed  

Open Energy Info (EERE)

NREL GIS Data: Global NREL GIS Data: Global Offshore Wind http://en.openei.org/datasets/node/869 GIS data for offshore wind speed (meters/second).  Specified to Exclusive Economic Zones (EEZ).Wind resource based on NOAA blended sea winds and monthly wind speed at 30km resolution, using a 0.11 wind sheer to extrapolate 10m - 90m.  Annual average  >= 10 months of data, no nulls. License

Type of License:  Other (please specify below)

79

Effect on energy use and greenhouse microclimate through fan motor control by variable frequency drives  

Science Journals Connector (OSTI)

A comparison was conducted between ON–OFF and variable frequency drive (VFD) systems to control greenhouse ventilation fans. The study aimed to determine the effect of each system on the energy consumption and resulting greenhouse microclimate. The experiments were conducted in a commercial size greenhouse in which pepper was grown. To check the performance of the fan that was controlled by a VFD system, it was installed in a test facility and operated under several rotation speeds. At each speed of rotation, the static pressure on the fan was changed and parameters, such as electricity consumption and air flow rate, were measured. Reducing the fan speed with the VFD system resulted in reductions in the air flow rate through the greenhouse and energy consumption, the latter being much more significant. The study showed that VFD control can reduce electricity consumption compared with ON–OFF operation by an amount that depends on the weather. In the present study, the average energy consumption with the VFD control system over a period of one month, was about 0.64 of that with an ON–OFF system. The average greenhouse daily air temperatures and humidity ratios obtained with each control system between 0700 and 1800 were nearly equal during that month. The results obtained in the greenhouse further show that the VFD system has a greater potential than the ON–OFF to reduce the range of amplitude variations in the air temperature and humidity ratio within the greenhouse.

Meir Teitel; Yun Zhao; Moti Barak; Eli Bar-lev; David Shmuel

2004-01-01T23:59:59.000Z

80

Drive actuation in active control of centrifugal compressors Jan Tommy Gravdahl and Olav Egeland  

E-Print Network [OSTI]

Drive actuation in active control of centrifugal compressors Jan Tommy Gravdahl and Olav Egeland-1375 Billingstad NORWAY CompressorShaft Electric drive Active surge control law Shaft speed Compressor performance control Figure 1: Active surge control using drive 1 Introduction Traditionally, centrifugal

Gravdahl, Jan Tommy

Note: This page contains sample records for the topic "average driving speed" 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

Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains  

E-Print Network [OSTI]

Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains Wilhelm Peters, Tobias Huber, Joachim Böcker Power Electronics and Electrical Drives, Paderborn automotive traction drives are a wide speed range, a wide constant-power operation range and high efficiency

Paderborn, Universität

82

Damping Control Study of the Drive Train of DFIG Wind Turbine  

Science Journals Connector (OSTI)

In this paper, damping controller for dynamic and transient control of a variable speed wind turbine is presented.the phenomenon of drive train oscillations in wind turbines is discussed. It is illustrated how the damping controller is able to reduce ... Keywords: pitch damping, drive train shaft, torque oscillation, damping control, drive train model

Zuo-xia Xing; Li-zhe Liang; Heng-yi Guo; Xiao-dong Wang

2009-10-01T23:59:59.000Z

83

Oscillatory nonohomic current drive for maintaining a plasma current  

DOE Patents [OSTI]

Apparatus and methods are described for maintaining a plasma current with an oscillatory nonohmic current drive. Each cycle of operation has a generation period in which current driving energy is applied to the plasma, and a relaxation period in which current driving energy is removed. Plasma parameters, such as plasma temperature or plasma average ionic charge state, are modified during the generation period so as to oscillate plasma resistivity in synchronism with the application of current driving energy. The invention improves overall current drive efficiencies.

Fisch, N.J.

1984-01-01T23:59:59.000Z

84

Oscillatory nonhmic current drive for maintaining a plasma current  

DOE Patents [OSTI]

Apparatus and method of the invention maintain a plasma current with an oscillatory nonohmic current drive. Each cycle of operation has a generation period in which current driving energy is applied to the plasma, and a relaxation period in which current driving energy is removed. Plasma parameters, such as plasma temperature or plasma average ionic charge state, are modified during the generation period so as to oscillate plasma resistivity in synchronism with the application of current driving energy. The invention improves overall current drive efficiencies.

Fisch, Nathaniel J. (Princeton, NJ)

1986-01-01T23:59:59.000Z

85

Estimation of Wind Speed in Connection to a Wind Turbine  

E-Print Network [OSTI]

horizontal axis wind power plant with rated power 750 KW. The plant has a three bladed rotor and an automatic is shown in Figure 1 demand Drive train Generator Rotor Wind speed Power demand Grid Power Controller PitchEstimation of Wind Speed in Connection to a Wind Turbine X. Ma #3; , N. K. Poulsen #3; , H. Bindner

86

Dual, High Speed ECL Comparators ADCMP563/ADCMP564  

E-Print Network [OSTI]

time bandwidth Typical output rise/fall time of 500 ps ESD protection > 4kV HBM, >200V MM Programmable drive transmission lines terminated in 50 to -2 V. A latch input, which is included, permits tracking ends Window comparators High speed line receivers Threshold detection Peak detection High speed

Berns, Hans-Gerd

87

Design Wind Speed  

Science Journals Connector (OSTI)

Wind is characterized by various different parameters. They include the following items: (1) wind speed, such as the mean wind speed and maximum instantaneous wind speed; (2) wind direction such as the azimuth di...

Yozo Fujino; Kichiro Kimura; Hiroshi Tanaka

2012-01-01T23:59:59.000Z

88

How to Avoid Overestimating Variable Speed Drive Savings  

E-Print Network [OSTI]

. Measure full flow power, rather than assuming it is the same as motor nameplate or design power. For many pump and fan systems, none of the eight factors will apply, or their effects will be negligible. However, analysts should consider their applicability...

Maxwell, J. B.

2005-01-01T23:59:59.000Z

89

Compatibility Between GFCI Breakers and Household Adjustable Speed Drives  

E-Print Network [OSTI]

- available ASD. To enhance compatibility, the input filter needs to be changed to reduce capacitance to earth-conditioning (HVAC) applications, where they are used for the same reasons as in industrial HVAC systems [1 filtering on the input lines. Generally, EMI requirements for residential installations [2, 3] are more

Kimball, Jonathan W.

90

Adjustable Speed Drives as Applied to Centrifugal Pumps  

E-Print Network [OSTI]

Centrifugal pumps are generally sized to operate at or near the best efficiency point at maximum flow. The maximum flow requirements, however, frequently occur for a very short period during the operating cycle with the result that some method...

Jarc, D. A.; Robechek, J. D.; Connors, D. P.

1982-01-01T23:59:59.000Z

91

A Study of Adjustable Speed Drive Applications for Pumps  

E-Print Network [OSTI]

(Chart C or E) 2200 /600/tOOO /600 /600 2800Total Retrofit Cost, $ 7800 3400 5Z00 5~OO Retrofit Payback (years) /.64.5 /.9 4.$ 3.2 4$00Valve Cost (Chart D) 4500 45004$00 4500 (,0 (,0lIDO <0<'0Total New Cost, $ 0.6 <. 0./ <0./ <. 0./ <'0./ New...

Triezenberg, D. M.; Lakhavani, S. T.

1983-01-01T23:59:59.000Z

92

Viscosity-average molecular weight  

Science Journals Connector (OSTI)

n .... An averaged molecular weight for high polymers that relates most closely to measurements of dilute-solution viscosities ...

2007-01-01T23:59:59.000Z

93

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)

94

Speed control of switched reluctance motor using sliding mode control strategy  

SciTech Connect (OSTI)

A robust speed drive system for a switched reluctance motor (SRM) using sliding mode control strategy (SLMC) is presented. After reviewing the operation of an SRM drive, a SLMC based scheme is formulated to control the drive speed. The scheme is implemented using a micro-controller and a high resolution position sensor. The parameter insensitive characteristics are demonstrated through computer simulations and experimental verification.

John, G. [Kenetech Windpower, Livermore, CA (United States); Eastham, A.R. [Queen`s Univ., Kingston, Ontario (Canada). Dept. of Electrical Engineering

1995-12-31T23:59:59.000Z

95

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

96

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

97

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

98

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. "

99

Averaging Hypotheses in Newtonian Cosmology  

E-Print Network [OSTI]

Average properties of general inhomogeneous cosmological models are discussed in the Newtonian framework. It is shown under which circumstances the average flow reduces to a member of the standard Friedmann--Lema\\^\\i tre cosmologies. Possible choices of global boundary conditions of inhomogeneous cosmologies as well as consequences for the interpretation of cosmological parameters are put into perspective.

T. Buchert

1995-12-20T23:59:59.000Z

100

Constant Speed for Processing  

Science Journals Connector (OSTI)

Synduction motor combines constant speed of synchronous motor with ruggedness of induction motor ... CONVENTIONAL SYNCHRONOUS ELECTRIC MOTORS operate at constant speed, regardless of load and voltage—frequency is the determining factor. ...

1956-04-23T23:59:59.000Z

Note: This page contains sample records for the topic "average driving speed" 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

Base drive circuit for a four-terminal power Darlington  

DOE Patents [OSTI]

A high power switching circuit which utilizes a four-terminal Darlington transistor block to improve switching speed, particularly in rapid turn-off. Two independent reverse drive currents are utilized during turn off in order to expel the minority carriers of the Darlington pair at their own charge sweep-out rate. The reverse drive current may be provided by a current transformer, the secondary of which is tapped to the base terminal of the power stage of the Darlington block. In one application, the switching circuit is used in each power switching element in a chopper-inverter drive of an electric vehicle propulsion system.

Lee, Fred C. (Blacksburg, VA); Carter, Roy A. (Salem, VA)

1983-01-01T23:59:59.000Z

102

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...

103

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

104

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 -...

105

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

106

Abstract--The induction motor is well known as the workhorse of industry. The development of variable speed  

E-Print Network [OSTI]

of variable speed induction motor drives has a long history of more than four decades. Today's sophisticated--Induction motor control I. INTRODUCTION EFORE the invention of variable frequency voltage and current source inverters the induction motor was never thought as continuously variable speed drive. Only some adaptations

Paderborn, Universität

107

A modified split-supply switched-reluctance drive inverter  

SciTech Connect (OSTI)

This paper describes the application of a new simple voltage-boosting feature to split-supply SR (switched-reluctance) inverter. As its name implies, the SR motor always operates in switching mode and has distinct motoring and generating rotor angular regions. The effectiveness of the energy conversion process of SR motor depends basically on the ability of its inverter to inject adequate current during the positive-torque angular region and to reduce the current to negligible value during negative-torque angular region. The modified inverter effectively generates boost voltages for accelerating current build-up and decay and hence enhances the performance of SR drives. Benefits of the added boosting include: higher average current, better energy recovery during commutation and a wider feasible speed range. This paper will assess the implications of the boost feature on inverter cost and performance. A time-stepping simulation procedure which includes the modelling of current overlapping between phases will be presented together with simulation results.

Chan, S.; Omar, A.M. [Mara Inst. of Tech., Selangor (Malaysia). Dept. of Electrical Engineering

1995-12-31T23:59:59.000Z

108

Motor Drives of Modern Drilling and Servicing Rigs for Oil and Gas Wells  

Science Journals Connector (OSTI)

This paper provides a synthetic view on the most recent achievements in the field of drilling and servicing rig drives for oil and gas wells. This field is featuring ... kilowatts and speeds of 150–250 rpm for drilling

Aurelian Iamandei; Gheorghe Miloiu

2013-01-01T23:59:59.000Z

109

DOE and Industry Partners Drive the Design of an Innovative Drivetrain...  

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

gearbox connects to a medium-speed generator that uses a fraction of the rare-earth magnets typically used in direct-drive permanent-magnet generators of similar power....

110

Effectiveness of speed trailers on low-speed urban roadways  

E-Print Network [OSTI]

documents the effectiveness of speed trailers for reducing speeds on low-speed urban roadways. At each test site, vehicle speeds were collected at upstream, trailer, and downstream locations using piezoelectric sensors. Vehicles were "tracked" along...

Perrillo, Kerry Victoria

2012-06-07T23:59:59.000Z

111

Core Measure Average KTR Results  

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

Measure Measure Average KTR Results FY 12 Target FY 12 DOE M&O CONTRACTOR (KTR) BSC RESULTS FY 2012 Customer Perspective and level of communication provided by the procurement office 95 92 Internal Business Perspective: Assessment (%) of the degree to which the purchasing system is in compliance with stakeholder requirements 97 Local Goals % Delivery on-time (includes JIT, excludes Purchase Cards) 88 84 % of total dollars obligated, on actions > $150K , that were awarded using effective competition 73 Local Goals Rapid Purchasing Techniques: -% of transactions placed by users 77 Local Goals -% of transactions placed through electronic commerce 62 Local Goals Average Cycle Time: -Average cycle time for <= $150K 8 6 to 9 days

112

Multiscale prediction of wind speed and output power for the wind farm  

Science Journals Connector (OSTI)

This paper focuses on establishing the multiscale prediction models for wind speed and power in wind farm by the average wind speed collected from the history records. Each type ... the predictive values of outpu...

Xiaolan Wang; Hui LI

2012-05-01T23:59:59.000Z

113

Speed estimation using single loop detector outputs  

E-Print Network [OSTI]

...................................................................................10 2.1 Introduction ........................................................................................10 2.2 Vehicle Detectors ...............................................................................10 2.3 Description of the Speed....4 Hourly traffic volumes from the IH-35 test bed in Austin on Oct. 27, 2004 38 Fig 3.5 Layout of the simulated freeway section ...................................................... 41 Fig. 4.1 Average vehicle lengths over time...

Ye, Zhirui

2009-05-15T23:59:59.000Z

114

Speed estimation using single loop detector outputs  

E-Print Network [OSTI]

...................................................................................10 2.1 Introduction ........................................................................................10 2.2 Vehicle Detectors ...............................................................................10 2.3 Description of the Speed....4 Hourly traffic volumes from the IH-35 test bed in Austin on Oct. 27, 2004 38 Fig 3.5 Layout of the simulated freeway section ...................................................... 41 Fig. 4.1 Average vehicle lengths over time...

Ye, Zhirui

2008-10-10T23:59:59.000Z

115

A New Method of Measuring Sperm Speeds  

Science Journals Connector (OSTI)

... the following footnote occurs on p. 89: "Fiirthmade systematic counts of the number of pedestrians in a [street] block every five seconds.... It is amusing that by ... kind made by Furth it is possible actually to determine the average speed of a pedestrian !" The principle involved in such determinations is known as probability-after-effect, and ...

LORD ROTHSCHILD

1953-03-21T23:59:59.000Z

116

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

117

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

118

West Texas Intermediate Spot Average ............................  

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

Crude Oil (dollars per barrel) Crude Oil (dollars per barrel) West Texas Intermediate Spot Average ............................ 102.88 93.42 92.24 87.96 94.34 94.10 105.84 96.30 95.67 95.33 95.67 93.33 94.12 97.64 95.00 Brent Spot Average ........................................................... 118.49 108.42 109.61 110.09 112.49 102.58 110.27 108.29 106.33 105.00 103.00 102.00 111.65 108.41 104.08 Imported Average .............................................................. 108.14 101.18 97.18 97.64 98.71 97.39 103.07 100.03 99.64 99.33 99.69 97.35 101.09 99.85 99.04 Refiner Average Acquisition Cost ...................................... 107.61 101.44 97.38 97.27 101.14 99.45 105.24 100.44 100.15 99.82 100.18 97.83 100.83 101.61 99.50 Liquid Fuels (cents per gallon) Refiner Prices for Resale Gasoline .........................................................................

119

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

120

Real-time implementation of a neural networks-based motor speed filter using a digital signal processor  

E-Print Network [OSTI]

numerous speed estimation methods have been reported in the literature for the control of an induction motor drive, it is the accuracy of the speed estimate and the response time of the filter that are the important parameters describing the speed filter...

Harihara, Parasuram Padmanabhan

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "average driving speed" 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

MHK Technologies/Anaconda bulge tube drives turbine | Open Energy  

Open Energy Info (EERE)

Anaconda bulge tube drives turbine Anaconda bulge tube drives turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Anaconda bulge tube drives turbine.jpg Technology Profile Primary Organization Checkmate SeaEnergy Technology Resource Click here Wave Technology Type Click here Oscillating Wave Surge Converter Technology Readiness Level Click here TRL 4 Proof of Concept Technology Description Anaconda uses a large water filled distensible rubber tube floating just beneath the ocean surface and oriented parallel to wave direction As a wave passes the bulge tube is lifted with the surrounding water and this causes a bulge wave to be excited which then passes down the tubes walls gathering energy from the ocean wave as it passes By matching the speed of the bulge wave to that of the sea wave resonance is achieved and high power capture becomes possible The bulge waves are then used to drive a turbine generator located at the stern of the device

122

Wind speed estimation using multilayer perceptron  

Science Journals Connector (OSTI)

Abstract Wind speed knowledge is prerequisite in the siting of wind turbines. In consequence the wind energy use requires meticulous and specified knowledge of the wind characteristics at a location. This paper presents a method for determining the annual average wind speed at a complex terrain site by using neural networks, when only short term data are available for that site. This information is useful for preliminary calculations of the wind resource at a remote area having only a short time period of wind measurements measurement in a site. Artificial neural networks are useful for implementing non-linear process variables over time, and therefore are a useful tool for estimating the wind speed. The neural network used is multilayer perceptron with three layers and the supervised learning algorithm used is backpropagation. The inputs used in the neural network were wind speed and direction data from a single station, and the training patterns used correspond to sixty days data. The results obtained by simulating the annual average wind speed at the selected site based on data from nearby stations with correlation coefficients above 0.5 were satisfactory, compared with actual values. Reliable estimations were obtained, with errors below 6%.

Ramón Velo; Paz López; Francisco Maseda

2014-01-01T23:59:59.000Z

123

Speed-and Facility-Specific Emission Estimates for On-Road Light-Duty Vehicles based on Real-World Speed Profiles  

E-Print Network [OSTI]

06-1096 Speed- and Facility-Specific Emission Estimates for On-Road Light-Duty Vehicles based on Real-World Speed Profiles By H. Christopher Frey, Ph.D. Professor Department of Civil, Construction demand and land use models such as TransCAD, TranPlan or TRANUS produce average link speed and link VMT

Frey, H. Christopher

124

LM119/LM219/LM319 High Speed Dual Comparator  

E-Print Network [OSTI]

LM119/LM219/LM319 High Speed Dual Comparator General Description The LM119 series are precision higher gain and lower input currents than devices like the LM710. The uncommitted collector of the output stage makes the LM119 compatible with RTL, DTL and TTL as well as capable of driving lamps and relays

Lanterman, Aaron

125

Elastic pathing: your speed is enough to track you  

Science Journals Connector (OSTI)

Today, people have the opportunity to opt-in to usage-based automotive insurances for reduced premiums by allowing companies to monitor their driving behavior. Several companies claim to measure only speed data to preserve privacy. With our elastic pathing ... Keywords: destination prediction, elastic pathing, location privacy, usage-based automotive insurance

Xianyi Gao, Bernhard Firner, Shridatt Sugrim, Victor Kaiser-Pendergrast, Yulong Yang, Janne Lindqvist

2014-09-01T23:59:59.000Z

126

Variable Average Absolute Percent Differences  

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

Variable Variable Average Absolute Percent Differences Percent of Projections Over- Estimated Gross Domestic Product Real Gross Domestic Product (Average Cumulative Growth)* (Table 2) 1.0 42.6 Petroleum Imported Refiner Acquisition Cost of Crude Oil (Constant $) (Table 3a) 35.2 18.6 Imported Refiner Acquisition Cost of Crude Oil (Nominal $) (Table 3b) 34.7 19.7 Total Petroleum Consumption (Table 4) 6.2 66.5 Crude Oil Production (Table 5) 6.0 59.6 Petroleum Net Imports (Table 6) 13.3 67.0 Natural Gas Natural Gas Wellhead Prices (Constant $) (Table 7a) 30.7 26.1 Natural Gas Wellhead Prices (Nominal $) (Table 7b) 30.0 27.1 Total Natural Gas Consumption (Table 8) 7.8 70.2 Natural Gas Production (Table 9) 7.1 66.0 Natural Gas Net Imports (Table 10) 29.3 69.7 Coal Coal Prices to Electric Generating Plants (Constant $)** (Table 11a)

127

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

128

A novel clutchless multiple-speed transmission for electric axles  

Science Journals Connector (OSTI)

Fully electric vehicles and range-extended electric vehicles can be characterised by a multitude of possible powertrain layouts, many of them currently under investigation and comparison. This contribution presents a novel clutchless seamless four-speed transmission system which can be concurrently driven by two electric motor drives, for use in fully electric vehicles or electric axles for through-the-road parallel hybrid electric vehicles. The transmission system allows the electric motors to work in their high efficiency region for a longer period during a typical driving schedule. This paper describes the layout of the novel transmission system, the equations for modelling its dynamics and the criteria for the selection of the best gearshift maps for energy efficiency. Finally, an energy consumption and performance comparison between the novel drivetrain, a conventional single-speed electric drivetrain and a double-speed electric drivetrain is discussed in detail for two case study vehicles.

Aldo Sorniotti; Thomas Holdstock; Mike Everitt; Marco Fracchia; Fabio Viotto; Carlo Cavallino; Stefano Bertolotto

2013-01-01T23:59:59.000Z

129

Electric vehicle drive train with rollback detection and compensation  

DOE Patents [OSTI]

An electric vehicle drive train includes a controller for detecting and compensating for vehicle rollback, as when the vehicle is started upward on an incline. The vehicle includes an electric motor rotatable in opposite directions corresponding to opposite directions of vehicle movement. A gear selector permits the driver to select an intended or desired direction of vehicle movement. If a speed and rotational sensor associated with the motor indicates vehicle movement opposite to the intended direction of vehicle movement, the motor is driven to a torque output magnitude as a nonconstant function of the rollback speed to counteract the vehicle rollback. The torque function may be either a linear function of speed or a function of the speed squared.

Konrad, Charles E. (Roanoke, VA)

1994-01-01T23:59:59.000Z

130

Heel and toe driving on fuel cell vehicle  

DOE Patents [OSTI]

A system and method for providing nearly instantaneous power in a fuel cell vehicle. The method includes monitoring the brake pedal angle and the accelerator pedal angle of the vehicle, and if the vehicle driver is pressing both the brake pedal and the accelerator pedal at the same time and the vehicle is in a drive gear, activating a heel and toe mode. When the heel and toe mode is activated, the speed of a cathode compressor is increased to a predetermined speed set-point, which is higher than the normal compressor speed for the pedal position. Thus, when the vehicle brake is removed, the compressor speed is high enough to provide enough air to the cathode, so that the stack can generate nearly immediate power.

Choi, Tayoung; Chen, Dongmei

2012-12-11T23:59:59.000Z

131

Effects on speed and safety of point-to-point speed enforcement systems: Evaluation on the urban motorway A56 Tangenziale di Napoli  

Science Journals Connector (OSTI)

Abstract In this paper, we evaluated the effects on speed and safety of the point-to-point (P2P) speed enforcement system activated on the urban motorway A56 in Italy. The P2P speed enforcement is a relatively new approach to traffic law enforcement that involves the calculation of the average speed over a section. To evaluate the speed effects, we performed a before–after analysis of speed data investigating also effects on non-compliance to speed limits. To evaluate the safety effects, we carried out an empirical Bayes observational before-and-after study. The P2P system led to very positive effects on both speed and safety. As far as the effects on the section average travel speeds, the system yielded to a reduction in the mean speed, the 85th percentile speed, the standard deviation of speed, and the proportion of drivers exceeding the speed limits, exceeding the speed limits more than 10 km/h, and exceeding the speed limits more than 20 km/h. The best results were the decrease of the speed variability and the reduction of the excessive speeding behaviour. The decrease in the standard deviation of speed was 26% while the proportion of light and heavy vehicles exceeding the speed limits more than 20 km/h was reduced respectively by 84 and 77%. As far as the safety effects, the P2P system yielded to a 32% reduction in the total crashes, with a lower 95% confidence limit of the estimate equal to 22%. The greatest crash reductions were in rainy weather (57%), on wet pavement (51%), on curves (49%), for single vehicle crashes (44%), and for injury crashes (37%). It is noteworthy that the system produced a statistically significant reduction of 21% in total crashes also in the part of the motorway where it was not activated, thus generating a significant spillover effect. The investigation of the effects of the P2P system on speed and safety over time allowed to develop crash modification functions where the relationship between crash modification factors and speed parameters (mean speed, 85th percentile speed, and standard deviation of speed) was expressed by a power function. Crash modification functions show that the effect of speed on safety is greater on curves and for injury crashes. Even though the study results show excellent outcomes, we must point out that the crash reduction effects decreased over time and speed, speed variability, and non-compliance to speed limits significantly increased over time. To maintain its effectiveness over time, P2P speed enforcement must be actively managed, i.e. constantly monitored and supported by appropriate sanctions.

Alfonso Montella; Lella Liana Imbriani; Vittorio Marzano; Filomena Mauriello

2015-01-01T23:59:59.000Z

132

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...

133

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS--I: FUNDAMENTAL THEORY AND APPLICATIONS, VOL. 49, NO. 5, MAY 2002 621 Modeling of PWM Inverter-Supplied AC Drives  

E-Print Network [OSTI]

. The fundamental frequency of this waveform is adjusted to produce the desired speed. In modern electric drives, MAY 2002 621 Modeling of PWM Inverter-Supplied AC Drives at Low Switching Frequencies T. A. Sakharuk in ac drives supplied by pulsewidth modulated (PWM) power electronic inverters. Specifically, the paper

Stankoviæ, Aleksandar

134

Year Average Transportation Cost of Coal  

Gasoline and Diesel Fuel Update (EIA)

delivered costs of coal, by year and primary transport mode Year Average Transportation Cost of Coal (Dollars per Ton) Average Delivered Cost of Coal (Dollars per Ton)...

135

Replace V-Belts with Notched or Synchronous Belt Drives  

Broader source: Energy.gov [DOE]

Belt drives provide flexibility in the positioning of the motor relative to the load. Pulleys (sheaves) of varying diameters allow the speed of the driven equipment to be increased or decreased relative to the motor speed. A properly designed belt power-transmission system offers high efficiency and low noise, requires no lubrication, and presents low maintenance requirements. However, certain types of belts are more efficient than others, offering potential energy cost savings. This tip sheet provides example energy savings calculations and offers suggested actions.

136

An evaluation of inductance loop detector lead length and optimal speed trap distance  

E-Print Network [OSTI]

averaged about 1.5 mph (2.4 km/h) for all speeds, while errors for speed traps with different detector units varied widely from one to 120 mph (1.6 to 194 km/h). Clearly, the best method for obtaining accurate speeds with inductance loop detectors utilizes...

Hamm, Robert Alan

1994-01-01T23:59:59.000Z

137

Combination of Speed Stroke Grinding and High Speed Grinding with Regard to Sustainability  

E-Print Network [OSTI]

Combination of Speed Stroke Grinding and High Speed Grindinghow the combination of speed stroke grinding and high speed4] Inasaki, I. , 1988, Speed Stroke Grinding of Advanced

Linke, Barbara; M. Duscha; F. Klocke; Dornfeld, David

2011-01-01T23:59:59.000Z

138

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...

139

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...

140

A Multivariate Moving Average Control Chart for Photovoltaic Processes  

E-Print Network [OSTI]

Abstract—For the electrical metrics that describe photovoltaic cell performance are inherently multivariate in nature, use of a univariate, or one variable, statistical process control chart can have important limitations. Development of a comprehensive process control strategy is known to be significantly beneficial to reducing process variability that ultimately drives up the manufacturing cost photovoltaic cells. The multivariate moving average or MMA chart, is applied to the electrical metrics of photovoltaic cells to illustrate the improved sensitivity on process variability this method of control charting offers. The result show the ability of the MMA chart to expand to as any variables as needed, suggests an application with multiple photovoltaic electrical metrics being used in concert to determine the processes state of control. Keywords—The multivariate moving average control chart, Photovoltaic processes control, Multivariate system. I.

Chunchom Pongchavalit

Note: This page contains sample records for the topic "average driving speed" 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

Driving for $1.14 Per Gallon | Department of Energy  

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

Driving for $1.14 Per Gallon Driving for $1.14 Per Gallon Driving for $1.14 Per Gallon June 11, 2013 - 7:30am Addthis News Media Contact (202) 586-4940 WASHINGTON - The Energy Department today launched the eGallon - a quick and simple way for consumers to compare the costs of fueling electric vehicles vs. driving on gasoline. Today's national average eGallon price is about $1.14, meaning that a typical electric vehicle could travel as far on $1.14 worth of electricity as a similar vehicle could travel on a gallon of gasoline. "Consumers can see gasoline prices posted at the corner gas station, but are left in the dark on the cost of fueling an electric vehicle. The eGallon will bring greater transparency to vehicle operating costs, and help drivers figure out how much they might save on fuel by choosing an

142

The high-speed operation of single phase switched reluctance motor considering magnetic saturation  

Science Journals Connector (OSTI)

In the high-speed operation of SRM the conventional pulse width modulation (PWM) drive method is not available because of the limitation of switching speed; therefore the single-pulse drive method is commonly employed. On the contrary the use of the single-pulse drive method cannot avoid the overcurrent in the low-speed operation because of the insufficient back emf and the difficulty of duty control. With these reasons the switching method is commonly changed from PWM at the low-speed operation to the single-pulse method at the high-speed operation. In the fan application the required load torque increases as a square of the fan speed; it requires more current for the torque generation. Therefore at the mode transition between PWM and single-pulse drive it is unavoidable that the phase current rapidly increases if the nonlinearity of inductance to the current is not considered. In this paper by using finite element method(FEM) which is considered with the nonlinearity of the inductance with respect to the current the speed of mode transition is calculated (18?000 rpm) and verified by the experiment.

JoonSeon Ahn; Sung Hong Won

2006-01-01T23:59:59.000Z

143

Current Speed in a Magnetic Annular Shock Tube  

Science Journals Connector (OSTI)

A parametric study of the speeds of the current sheet and center?of?gravity of current in a magnetic annular shock tube has been carried out. The parameters varied include: (1) the drive current (2) the polarity of the inner electrode (3) the gas pressure (4) the nature of the gas (5) the radius of the inner electrode and (6) the material of the inner electrode. The most interesting result of the investigation was the observation of limiting speeds for the current sheet and center?of?gravity of current of approximately 8 cm/?sec and 3 cm/?sec respectively. These speeds were not exceeded even under conditions where the magnetic pressure exceeded the dynamic pressure by a factor of 10. The most probable explanation of the limiting speed is that it is due to the inertial drag of material ablated from the insulator at the driver end of the shock tube.

James Keck

1964-01-01T23:59:59.000Z

144

Rotating mousehole improves top drive/conventional drilling  

SciTech Connect (OSTI)

Top drive speed and efficiency are limited and have not reached full potential because of operation ``bottlenecks`` during makeup or breakout of triple pipe stands and bottomhole assembly (BHA) change out. Operators and contractors analyzed tools to overcome these limitations and found a potential solution from International Tool Co., a supplier of kelly spinners, in a tool that has improved make/break efficiency and rig floor safety. The Phantom Mouse rotating mousehole assembly was developed to improve drilling efficiency on top-drive-equipped rigs. This new device tightens connections so pipe stands can be set back in derricks. Using the system, crews can quickly and efficiently make up and set back DP stands while drilling ahead with top drives. It can also be used to break out and lay down excess DP from the derrick.

NONE

1995-08-01T23:59:59.000Z

145

Direct Drive Systems DDS | Open Energy Information  

Open Energy Info (EERE)

Systems DDS Systems DDS Jump to: navigation, search Name Direct Drive Systems (DDS) Place Cerritos, California Zip CA 90703 Product Manufactures high speed, permanent magnet (PM), high-power motors, generators and power electronics. Coordinates 33.868545°, -118.063704° 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":33.868545,"lon":-118.063704,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

146

Guidelines for installing two-way left-turn lanes on high-speed suburban roadways  

E-Print Network [OSTI]

benefits (reduced accident potential) for a high-speed suburban roadway with no existing median. From the results of this study, it was recommended that TWLTL facilities be provided on high-speed suburban roadways with average daily traffic volumes... vehicles, even at low speeds and low angles of approach. In fact, the curbs may increase the potential for severe accidents by causing vaulting. In this situation, higher operating speeds will only enhance the problem. One possible solution for suburban...

Nowlin, Ronald Lewis

2012-06-07T23:59:59.000Z

147

PHYSICAL REVIEW E 86, 036314 (2012) ac electric fields drive steady flows in flames  

E-Print Network [OSTI]

PHYSICAL REVIEW E 86, 036314 (2012) ac electric fields drive steady flows in flames Aaron M. Drews June 2012; published 20 September 2012) We show that time-oscillating electric fields applied-averaged force that drives the steady flows observed experimentally. A quantitative model describes the response

Heller, Eric

148

Analysis of electro-optic crystal-based Fabry-Perot etalons for high-speed spatial light modulators  

Science Journals Connector (OSTI)

The use of electro-optic (EO) crystal-based Fabry-Perot modulators (FPMs) as high-speed spatial light modulators is proposed. The FPMs operate with an extremely low drive voltage and a...

Takizawa, Kuniharu

2003-01-01T23:59:59.000Z

149

File:CV WindSpeed.pdf | Open Energy Information  

Open Energy Info (EERE)

WindSpeed.pdf WindSpeed.pdf Jump to: navigation, search File File history File usage Cape Verde-Map Summarizing Average Wind Speed (m/s) Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 246 KB, MIME type: application/pdf) Description Cape Verde-Map Summarizing Average Wind Speed (m/s) Sources ECOWAS Creation Date 2011/11/14 Coordinates 16.002082°, -24.013197° File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 11:43, 14 November 2011 Thumbnail for version as of 11:43, 14 November 2011 1,650 × 1,275 (246 KB) STobin (Talk | contribs) You cannot overwrite this file. Edit this file using an external application (See the setup instructions for more information)

150

Globally competitive variable-speed wind turbines  

SciTech Connect (OSTI)

This paper focuses on the design issues which must be addressed if variable-speed wind turbines are to compete in the global marketplace. The paper examines how component-specific design decisions must be made on a system level if an optimized system is to be the result. The relationships among the blades, the generator and the utility interface are considered in detail, using the conceptual design of a 12 kW variable-speed wind turbine (the AOC 8/12) as a running example. The turbine is based on a direct-drive variable-reluctance generator (VRG), a single- or three-phase utility interface as appropriate, and a three-bladed rotor with fixed pitch. A preliminary turbine specification is provided, along with candidate power-speed curves and annual energy output. This paper documents the continuing development and commercialization of this technology which is being taken from the proof-of-concept stage and is now headed for field testing.

Torrey, D.A. [Rensselaer Polytechnic Institute, Troy, NY (United States); Childs, S.E.; Johnson, B.; Carter, J. [Atlantic Orient Corp., Norwich, VT (United States)

1995-12-31T23:59:59.000Z

151

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

152

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

153

Control of a 6/4 switched reluctance motor in a variable speed pumping application  

Science Journals Connector (OSTI)

An original variable-speed pumping system was developed through integrating a power converter, switched reluctance motor (SRM), centrifugal pump, and speed control strategy. A customized power converter and speed control strategy were selected, designed, and implemented to regulate the speed of the SRM-pump system. The control strategy to regulate the speed of the SRM consisted of a digital controller made with PI and phase-lead compensators in series and, simultaneously, adjusting the advanced firing angle as a function of the desired motor speed. It was experimentally demonstrated that the inverter-SRM-pump system is a good option to drive a centrifugal pump with a relatively high efficiency at all speeds.

Horacio Vasquez; Joey Parker; Timothy Haskew

2005-01-01T23:59:59.000Z

154

Forecasting Solar Wind Speeds  

E-Print Network [OSTI]

By explicitly taking into account effects of Alfven waves, I derive from a simple energetics argument a fundamental relation which predicts solar wind (SW) speeds in the vicinity of the earth from physical properties on the sun. Kojima et al. recently found from their observations that a ratio of surface magnetic field strength to an expansion factor of open magnetic flux tubes is a good indicator of the SW speed. I show by using the derived relation that this nice correlation is an evidence of the Alfven wave which accelerates SW in expanding flux tubes. The observations further require that fluctuation amplitudes of magnetic field lines at the surface should be almost universal in different coronal holes, which needs to be tested by future observations.

Takeru K. Suzuki

2006-02-03T23:59:59.000Z

155

Comparison of AC drives for electric vehicles -- A report on experts` opinion survey  

SciTech Connect (OSTI)

It is recognized that wide applications of electric vehicles (EVs) will bring tremendous social, economical and ecological benefits. With the growing interests in electric vehicles, much effort is demanded for the development of efficient, reliable and economical AC drives` for EV propulsion purpose. Both induction motor (IM) drives and permanent magnet brushless DC motor (BDCM) drives have been applied to EVs. Switched reluctance motor (SRM) drives have been proposed as an alternative for EV propulsion. In order to assess the suitability of IM, BDCM and SRM drives for EV applications and to provide a technical support for the development and selection of future EV propulsion systems, the existing EV AC propulsion drives were compared, and a survey of experts` opinions was conducted. Comparison of the three AC drives was made on a relative and a quantitative basis using the survey questionnaires. According to the majority of the experts, induction motor drives are best suited for EV propulsion purpose, due to their low cost, high reliability, high speed, established converter and manufacturing technology, low torque ripple/noise and absence of position sensors. BDCM drives feature compactness, low weight and high efficiency and therefore provide an alternative for EV propulsion. The experts regard insulated gate bipolar transistors (IGBTs) as the most suited power semiconductor devices for AC drive converters at the present stage. 7 refs.

Chang, L. [New Brunswick Univ., Fredericton, New Brunswick (Canada). Dept. of Electrical Engineering] [New Brunswick Univ., Fredericton, New Brunswick (Canada). Dept. of Electrical Engineering

1994-08-01T23:59:59.000Z

156

High speed door assembly  

SciTech Connect (OSTI)

This invention is comprised of a high speed door assembly, comprising an actuator cylinder and piston rods, a pressure supply cylinder and fittings, an electrically detonated explosive bolt, a honeycomb structured door, a honeycomb structured decelerator, and a structural steel frame encasing the assembly to close over a 3 foot diameter opening within 50 milliseconds of actuation, to contain hazardous materials and vapors within a test fixture.

Shapiro, C.

1991-12-31T23:59:59.000Z

157

1International High Speed Rail Conference 19642064 High Speed Rail  

E-Print Network [OSTI]

1International High Speed Rail Conference 1964­2064 High Speed Rail: Celebrating Ambition 2014 by the Birmingham Centre for Railway Research and Education Conference programme 8 ­10 December 2014 Kindly supported by: #12;2 International High Speed Rail Conference Monday 8 December 12:00 ­ 12:50 Registration

Birmingham, University of

158

Energy saving in agricultural buildings through fan motor control by variable frequency drives  

Science Journals Connector (OSTI)

A comparison was conducted between ON–OFF and variable frequency drive (VFD) systems to control ventilation fans of greenhouses and poultry houses. The study aimed to determine the effect of each system on the energy consumption and resulting microclimate within the houses. The experiments were carried out in a commercial-size greenhouse in which pepper was grown and in commercial poultry houses. Reducing the fan speed with the VFD system resulted in reductions in the airflow rate through the houses and energy consumption, the latter being much more significant. The study showed that VFD control can reduce electricity consumption compared with ON–OFF operation. In the present study, the average energy consumption with the VFD control system was about 0.64 and 0.75 of that with an ON–OFF system in the greenhouse and poultry houses, respectively. The average greenhouse daily air temperatures and humidity ratios obtained with each control system between 07:00 and 18:00 were nearly equal. The results obtained in the greenhouse further showed that the VFD system has a greater potential than the ON–OFF, to reduce the range of amplitude variations in the air temperature and humidity ratio within the greenhouse. The average air temperatures over day and night, in the poultry houses, with each control system were nearly equal. The relative humidity, however, was slightly lower with VFD than with ON–OFF. Reductions in the range of amplitude variations of the air temperature and humidity were also observed in the poultry houses.

Meir Teitel; Asher Levi; Yun Zhao; Moti Barak; Eli Bar-lev; David Shmuel

2008-01-01T23:59:59.000Z

159

The Casimir warp drive:Is the Casimir Effect a valid candidate to generate and sustain a Natario warp drive spacetime bubble??  

E-Print Network [OSTI]

The Casimir warp drive:Is the Casimir Effect a valid candidate to generate and sustain a Natario in a reasonable amount of time a ship must attain a speed of about 200 times faster than light Relativity forbids the existence of negative energy the Casimir Effect first predicted by Casimir in 1948

Paris-Sud XI, Université de

160

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

Note: This page contains sample records for the topic "average driving speed" 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

Optimal Flight Speed of Birds  

Science Journals Connector (OSTI)

...research-article Optimal Flight Speed of Birds Anders Hedenstrom Thomas Alerstam The speed of birds in flapping flight...when interpreted in the light of optimization theory, may...and review of optimal flight speeds of birds, based on foraging...

1995-01-01T23:59:59.000Z

162

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...

163

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

164

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

165

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.

166

Anomalous - viscosity current drive  

DOE Patents [OSTI]

An apparatus and method for maintaining a steady-state current in a toroidal magnetically confined plasma. An electric current is generated in an edge region at or near the outermost good magnetic surface of the toroidal plasma. The edge current is generated in a direction parallel to the flow of current in the main plasma and such that its current density is greater than the average density of the main plasma current. The current flow in the edge region is maintained in a direction parallel to the main current for a period of one or two of its characteristic decay times. Current from the edge region will penetrate radially into the plasma and augment the main plasma current through the mechanism of anomalous viscosity. In another aspect of the invention, current flow driven between a cathode and an anode is used to establish a start-up plasma current. The plasma-current channel is magnetically detached from the electrodes, leaving a plasma magnetically insulated from contact with any material obstructions including the cathode and anode.

Stix, Thomas H. (Princeton, NJ); Ono, Masayuki (Princeton Junction, NJ)

1988-01-01T23:59:59.000Z

167

Response Surface Energy Modeling of an Electric Vehicle over a Reduced Composite Drive Cycle  

SciTech Connect (OSTI)

Response surface methodology (RSM) techniques were applied to develop a predictive model of electric vehicle (EV) energy consumption over the Environmental Protection Agency's (EPA) standardized drive cycles. The model is based on measurements from a synthetic composite drive cycle. The synthetic drive cycle is a minimized statistical composite of the standardized urban (UDDS), highway (HWFET), and US06 cycles. The composite synthetic drive cycle is 20 minutes in length thereby reducing testing time of the three standard EPA cycles by over 55%. Vehicle speed and acceleration were used as model inputs for a third order least squared regression model predicting vehicle battery power output as a function of the drive cycle. The approach reduced three cycles and 46 minutes of drive time to a single test of 20 minutes. Application of response surface modeling to the synthetic drive cycle is shown to predict energy consumption of the three EPA cycles within 2.6% of the actual measured values. Additionally, the response model may be used to predict energy consumption of any cycle within the speed/acceleration envelope of the synthetic cycle. This technique results in reducing test time, which additionally provides a model that may be used to expand the analysis and understanding of the vehicle under consideration.

Jehlik, Forrest [Argonne National Laboratory (ANL)] [Argonne National Laboratory (ANL); LaClair, Tim J [ORNL] [ORNL

2014-01-01T23:59:59.000Z

168

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...

169

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...

170

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...

171

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...

172

GPS Data Filtration Method for Drive Cycle Analysis Applications  

SciTech Connect (OSTI)

When employing GPS data acquisition systems to capture vehicle drive-cycle information, a number of errors often appear in the raw data samples, such as sudden signal loss, extraneous or outlying data points, speed drifting, and signal white noise, all of which limit the quality of field data for use in downstream applications. Unaddressed, these errors significantly impact the reliability of source data and limit the effectiveness of traditional drive-cycle analysis approaches and vehicle simulation software. Without reliable speed and time information, the validity of derived metrics for drive cycles, such as acceleration, power, and distance, become questionable. This study explores some of the common sources of error present in raw onboard GPS data and presents a detailed filtering process designed to correct for these issues. Test data from both light and medium/heavy duty applications are examined to illustrate the effectiveness of the proposed filtration process across the range of vehicle vocations. Graphical comparisons of raw and filtered cycles are presented, and statistical analyses are performed to determine the effects of the proposed filtration process on raw data. Finally, an evaluation of the overall benefits of data filtration on raw GPS data and present potential areas for continued research is presented.

Duran, A.; Earleywine, M.

2013-02-01T23:59:59.000Z

173

High speed transient sampler  

DOE Patents [OSTI]

A high speed sampler comprises a meandered sample transmission line for transmitting an input signal, a straight strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates along the transmission lines. The sampling gates comprise a four terminal diode bridge having a first strobe resistor connected from a first terminal of the bridge to the positive strobe line, a second strobe resistor coupled from the third terminal of the bridge to the negative strobe line, a tap connected to the second terminal of the bridge and to the sample transmission line, and a sample holding capacitor connected to the fourth terminal of the bridge. The resistance of the first and second strobe resistors is much higher than the signal transmission line impedance in the preferred system. This results in a sampling gate which applies a very small load on the sample transmission line and on the strobe generator. The sample holding capacitor is implemented using a smaller capacitor and a larger capacitor isolated from the smaller capacitor by resistance. The high speed sampler of the present invention is also characterized by other optimizations, including transmission line tap compensation, stepped impedance strobe line, a multi-layer physical layout, and unique strobe generator design. A plurality of banks of such samplers are controlled for concatenated or interleaved sample intervals to achieve long sample lengths or short sample spacing. 17 figs.

McEwan, T.E.

1995-11-28T23:59:59.000Z

174

High speed transient sampler  

DOE Patents [OSTI]

A high speed sampler comprises a meandered sample transmission line for transmitting an input signal, a straight strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates along the transmission lines. The sampling gates comprise a four terminal diode bridge having a first strobe resistor connected from a first terminal of the bridge to the positive strobe line, a second strobe resistor coupled from the third terminal of the bridge to the negative strobe line, a tap connected to the second terminal of the bridge and to the sample transmission line, and a sample holding capacitor connected to the fourth terminal of the bridge. The resistance of the first and second strobe resistors is much higher than the signal transmission line impedance in the preferred system. This results in a sampling gate which applies a very small load on the sample transmission line and on the strobe generator. The sample holding capacitor is implemented using a smaller capacitor and a larger capacitor isolated from the smaller capacitor by resistance. The high speed sampler of the present invention is also characterized by other optimizations, including transmission line tap compensation, stepped impedance strobe line, a multi-layer physical layout, and unique strobe generator design. A plurality of banks of such samplers are controlled for concatenated or interleaved sample intervals to achieve long sample lengths or short sample spacing.

McEwan, Thomas E. (Livermore, CA)

1995-01-01T23:59:59.000Z

175

Property:SalinityAverage | Open Energy Information  

Open Energy Info (EERE)

SalinityAverage SalinityAverage Jump to: navigation, search Property Name SalinityAverage Property Type Number Description Mean average of the low and high end measurements of the salinity [ppm] of the fluid. This is a property of type Page. Subproperties This property has the following 1 subproperty: C Coso Geothermal Area Pages using the property "SalinityAverage" Showing 19 pages using this property. A Amedee Geothermal Area + 975 + B Beowawe Hot Springs Geothermal Area + 700 + Blue Mountain Geothermal Area + 4300 + Brady Hot Springs Geothermal Area + 3500 + C Chena Geothermal Area + 325 + D Desert Peak Geothermal Area + 6700 + Dixie Valley Geothermal Area + 2295 + E East Mesa Geothermal Area + 3750 + G Geysers Geothermal Area + 217 + K Kilauea East Rift Geothermal Area + 18750 +

176

Dual-decay converter for switched reluctance motor drives in low-voltage applications  

SciTech Connect (OSTI)

A modified converter topology for star-connected switched reluctance motors suitable for low-voltage applications is proposed in this paper. A dual time constant freewheeling circuit has been designed to improve the drive performance and efficiency over a wide range of speeds. The different modes of operation of the converter are discussed, and a comparison is made with other converter configurations.

Ehsani, Mehrdad; Husain, Iqbal; Ramani, K.R. (Texas A and M Univ., College Station, TX (United States). Dept. of Electrical Engineering); Galloway, J.H. (J.H. Galloway and Associates, Brookfield, CT (United States))

1993-04-01T23:59:59.000Z

177

Real-Time Fuzzy Control of Sensorless PM Drive Systems Dr. Kasim M. Al-Aubidy  

E-Print Network [OSTI]

oscillator controls the motor speed. The other mode is the closed-loop mode, in which the inverter power is essential for controlling the power devices of the inverter. The main problem with present rotor position without the new trends in softcomputing. There is a lot of literature on the design of AC drive systems

178

Regional averaging and scaling in relativistic cosmology  

E-Print Network [OSTI]

Averaged inhomogeneous cosmologies lie at the forefront of interest, since cosmological parameters like the rate of expansion or the mass density are to be considered as volume-averaged quantities and only these can be compared with observations. For this reason the relevant parameters are intrinsically scale-dependent and one wishes to control this dependence without restricting the cosmological model by unphysical assumptions. In the latter respect we contrast our way to approach the averaging problem in relativistic cosmology with shortcomings of averaged Newtonian models. Explicitly, we investigate the scale-dependence of Eulerian volume averages of scalar functions on Riemannian three-manifolds. We propose a complementary view of a Lagrangian smoothing of (tensorial) variables as opposed to their Eulerian averaging on spatial domains. This program is realized with the help of a global Ricci deformation flow for the metric. We explain rigorously the origin of the Ricci flow which, on heuristic grounds, has already been suggested as a possible candidate for smoothing the initial data set for cosmological spacetimes. The smoothing of geometry implies a renormalization of averaged spatial variables. We discuss the results in terms of effective cosmological parameters that would be assigned to the smoothed cosmological spacetime.

Thomas Buchert; Mauro Carfora

2002-10-11T23:59:59.000Z

179

Wind: monthly and annual average wind GIS data at one-degree resolution of  

Open Energy Info (EERE)

monthly and annual average wind GIS data at one-degree resolution of monthly and annual average wind GIS data at one-degree resolution of the World from NASA/SSE Dataset Summary Description (Abstract): Wind Speed At 50 m Above The Surface Of The Earth (m/s)NASA Surface meteorology and Solar Energy (SSE) Release 5 Data Set (Jan. 2005)10-year Monthly & Annual Average (July 1983 - June 1993) Parameter: Wind Speed At 50 m Above The Surface Of The Earth (m/s) Internet: http://eosweb.larc.nasa.gov/sse/ Note: SSE Methodology & Accuracy sections online Created: October 4, 2005 See the NASA Surface meteorology and Solar Energy (SSE) web site at http://eosweb.larc.nasa.gov/sse/. The source data was downloaded from the SSE website at Data Retrieval: Meteorology and Solar Energy > Global data sets as text files. The tabular data was then converted to the shapefile format.

180

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":""}]}

Note: This page contains sample records for the topic "average driving speed" 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

Average Data for Each Choke Setting (before 24-May 2010 06:00), 6-hour average (  

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

Average Data for Each Choke Setting (before 24-May 2010 06:00), 6-hour average (after 24-May 2010 06:00):" Average Data for Each Choke Setting (before 24-May 2010 06:00), 6-hour average (after 24-May 2010 06:00):" ,,"Choke","Average","Average","Fluid","Methanol","Water","Oil","Gas","Hyd. Eq.","Gas" ,"Choke","Setting","Upstream","Upstream","Recovery","Recovery","Recovery","Recovery","Recovery","Recovery","Recovery" "Date and Time","Setting","Duration","Pressure","Temp.","Rate","Rate","Rate","Rate","Rate","Rate","Portion" "dd-mmm-yy","(64ths)","(hours)","(psia)","(degF)","(bfpd)","(bfpd)","(bwpd)","(bopd)","(mmcfpd)","(boepd)","(%)"

182

Photovoltaic array driven adjustable speed heat pump and power system scheme for a lunar based habitat  

SciTech Connect (OSTI)

A high reliability power system scheme, incorporating a photovoltaic power supply and adjustable speed heat pump for life support is presented in this paper. Initial design guidelines and also a description of the state of technology available is presented herein. The power supply scheme will be used as input to an Adjustable Speed Drive (ASD) which will be driving a heat pump. A brief study of various aspects of ASDs is presented, further a summary of the relative merits of different ASD systems presently in vogue is discussed. The advantages of using microcomputer based ASDs is widely understood and accepted. Of the three most popular drive systems, namely the Induction Motor Drive, Switched Reluctance Motor Drive and Brushless DC Motor Drive, any one may be chosen. The choice would depend on the nature of the application and its requirements. The suitability of the above mentioned drive systems and control techniques for a photovoltaic array driven ASD for an aerospace application are discussed. Also discussed are several possible power system designs for a potential lunar habitat.

Domijan, A. Jr.; Buchh, T.A. [Univ. of Florida, Gainesville, FL (United States). Dept. of Electrical and Computer Engineering] [Univ. of Florida, Gainesville, FL (United States). Dept. of Electrical and Computer Engineering

1998-12-01T23:59:59.000Z

183

STEO January 2013 - average gasoline prices  

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

gasoline prices are expected to decline over the next two years. The average pump price for regular unleaded gasoline was 3.63 a gallon during 2012. That is expected to fall...

184

average air temperature | OpenEI  

Open Energy Info (EERE)

average air temperature average air temperature Dataset Summary Description (Abstract): Air Temperature at 10 m Above The Surface Of The Earth (deg C)NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly & Annual Average (July 1983 - June 2005)Parameter: Air Temperature at 10 m Above The Surface Of The Earth (deg C)Internet: http://eosweb.larc.nasa.gov/sse/Note 1: SSE Methodology & Accuracy sections onlineNote 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; Source U.S. National Aeronautics and Space Administration (NASA), Surface meteorology and Solar Energy (SSE) Date Released March 31st, 2009 (5 years ago) Date Updated April 01st, 2009 (5 years ago) Keywords average air temperature

185

Assessing Benefits in Vehicle Speed and Lateral Position when Chevrons with Full Retroreflective Sign Posts are Implemented on Rural Horizontal Curves  

E-Print Network [OSTI]

Driving a horizontal roadway curve requires a change in vehicle alignment and a potential reduction in speed. Curves may present a challenging situation during adverse conditions or to inattentive drivers. Chevron signs provide advanced warning...

Re, Jonathan M.

2010-01-16T23:59:59.000Z

186

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

187

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

188

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

189

Simulation and analysis of high-speed modular flywheel energy storage systems using MATLAB/Simulink  

Science Journals Connector (OSTI)

Storage is an extremely important area of research and has several applications, including potential of furthering the integration of renewable in the grid. An efficient and cost-effective electric storage is a transformative technology and benefits ... Keywords: PM motor, flywheel energy storage system, high-speed drives, storage system

Parag Upadhyay; Ned Mohan

2009-07-01T23:59:59.000Z

190

Getting Ready for Electric Drive: the Plug-In Vehicle and Infrastructure  

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

Ready for Electric Drive: the Plug-In Vehicle and Ready for Electric Drive: the Plug-In Vehicle and Infrastructure Workshop Getting Ready for Electric Drive: the Plug-In Vehicle and Infrastructure Workshop August 18, 2010 - 5:30pm Addthis Matt Rogers Matt Rogers McKinsey & Company Blogs have been abuzz on electric vehicles and advanced batteries recently, and likely in no small part due to some of the programs that are kicking into high gear at the Department of Energy right now. On July 22, we hosted a Plug-In Vehicle & Infrastructure Workshop that brought together nearly 200 attendees and 600 web participants to discuss near-term actions to accelerate deployment of electric-drive vehicles. The program demonstrated how federal leadership can speed up preparation for vehicles expected in showrooms at the end of this year. This leadership complements the Obama

191

Polarized electron beams at milliampere average current  

SciTech Connect (OSTI)

This contribution describes some of the challenges associated with developing a polarized electron source capable of uninterrupted days-long operation at milliAmpere average beam current with polarization greater than 80%. Challenges will be presented in the context of assessing the required level of extrapolation beyond the performance of today's CEBAF polarized source operating at ~ 200 uA average current. Estimates of performance at higher current will be based on hours-long demonstrations at 1 and 4 mA. Particular attention will be paid to beam-related lifetime-limiting mechanisms, and strategies to construct a photogun that operate reliably at bias voltage > 350kV.

Poelker, Matthew [JLAB

2013-11-01T23:59:59.000Z

192

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) *

193

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

194

Ordered Weighted Average Based Fuzzy Rough Sets  

E-Print Network [OSTI]

Ordered Weighted Average Based Fuzzy Rough Sets Chris Cornelis 1 , Nele Verbiest1 , and Richard rough set model, which is based on a similar rationale, our proposal has the ad- vantage a feature selection application confirm the potential of the OWA-based model. Keywords: fuzzy rough sets

Gent, Universiteit

195

HIGH AVERAGE POWER OPTICAL FEL AMPLIFIERS.  

SciTech Connect (OSTI)

Historically, the first demonstration of the optical FEL was in an amplifier configuration at Stanford University [l]. There were other notable instances of amplifying a seed laser, such as the LLNL PALADIN amplifier [2] and the BNL ATF High-Gain Harmonic Generation FEL [3]. However, for the most part FELs are operated as oscillators or self amplified spontaneous emission devices. Yet, in wavelength regimes where a conventional laser seed can be used, the FEL can be used as an amplifier. One promising application is for very high average power generation, for instance FEL's with average power of 100 kW or more. The high electron beam power, high brightness and high efficiency that can be achieved with photoinjectors and superconducting Energy Recovery Linacs (ERL) combine well with the high-gain FEL amplifier to produce unprecedented average power FELs. This combination has a number of advantages. In particular, we show that for a given FEL power, an FEL amplifier can introduce lower energy spread in the beam as compared to a traditional oscillator. This properly gives the ERL based FEL amplifier a great wall-plug to optical power efficiency advantage. The optics for an amplifier is simple and compact. In addition to the general features of the high average power FEL amplifier, we will look at a 100 kW class FEL amplifier is being designed to operate on the 0.5 ampere Energy Recovery Linac which is under construction at Brookhaven National Laboratory's Collider-Accelerator Department.

BEN-ZVI, ILAN, DAYRAN, D.; LITVINENKO, V.

2005-08-21T23:59:59.000Z

196

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

197

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

198

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

199

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...

200

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...

Note: This page contains sample records for the topic "average driving speed" 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

Contour Charts of SOFAR Speed and Axis Depth in the Pacific Ocean  

Science Journals Connector (OSTI)

Sound speeds calculated from the physical properties of sea water as measured at hydrographic stations were used to construct contour charts of SOFAR?speed and SOFAR?axis depth for the Pacific Ocean. Wilson's formula was used for the calculation of speed. Data were averaged for 1° squares plotted and smooth contours were drawn manually. Speeds averaged along great?circle paths are compared with those measured for explosions. The charts show steep gradients along the Antarctic convergence and at the convergence of the Oyashio and Kuroshio extension. The region of highest speed as well as greatest axis depth was that extending eastward from Australia to about the 150°W. The charts are used in a program for calculating source coordinates of earthquakeT phases.

Rockne H. Johnson; Roger A. Norris

1967-01-01T23:59:59.000Z

202

Free Energy Self-Averaging in Protein-Sized Random Heteropolymers  

E-Print Network [OSTI]

Current theories of heteropolymers are inherently macrpscopic, but are applied to folding proteins which are only mesoscopic. In these theories, one computes the averaged free energy over sequences, always assuming that it is self-averaging -- a property well-established only if a system with quenched disorder is macroscopic. By enumerating the states and energies of compact 18, 27, and 36mers on a simplified lattice model with an ensemble of random sequences, we test the validity of the self-averaging approximation. We find that fluctuations in the free energy between sequences are weak, and that self-averaging is a valid approximation at the length scale of real proteins. These results validate certain sequence design methods which can exponentially speed up computational design and greatly simplify experimental realizations.

Jeffrey Chuang; Alexander Yu. Grosberg; Mehran Kardar

2001-02-05T23:59:59.000Z

203

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.

204

Forecasting wind speed financial return  

E-Print Network [OSTI]

The prediction of wind speed is very important when dealing with the production of energy through wind turbines. In this paper, we show a new nonparametric model, based on semi-Markov chains, to predict wind speed. Particularly we use an indexed semi-Markov model that has been shown to be able to reproduce accurately the statistical behavior of wind speed. The model is used to forecast, one step ahead, wind speed. In order to check the validity of the model we show, as indicator of goodness, the root mean square error and mean absolute error between real data and predicted ones. We also compare our forecasting results with those of a persistence model. At last, we show an application of the model to predict financial indicators like the Internal Rate of Return, Duration and Convexity.

D'Amico, Guglielmo; Prattico, Flavio

2013-01-01T23:59:59.000Z

205

Renewable variable speed hybrid system   

E-Print Network [OSTI]

At present many remote and Island communities rely solely on diesel powered generators to provide electricity. Diesel fuel is both expensive and polluting and the constant speed operation of the diesel engine is inefficient. ...

Stott, Paul Anthony

2010-01-01T23:59:59.000Z

206

Speed Limit of Magnetic Recording  

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

1. The linac's beam, made of tightly packed bunches of electrons traveling close to the speed of light, creates magnetic pulses that are some of the world's strongest - at up to...

207

Information superhighway approaches light speed  

Science Journals Connector (OSTI)

Nothing moves faster than light in a vacuum but a new kind of optical fibre transports large volumes of data at 99.7 per cent of this speed limit

2013-01-01T23:59:59.000Z

208

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

209

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?

210

Combination of Speed Stroke Grinding and High Speed Grinding with Regard to Sustainability  

E-Print Network [OSTI]

Stress Model for Speed Stroke Grinding of Hardened SteelStresses in Speed Stroke Grinding via FEA Simulation andCombination of Speed Stroke Grinding and High Speed Grinding

Linke, Barbara; Duscha, Michael; Klocke, Fritz; Dornfeld, David

2011-01-01T23:59:59.000Z

211

Driving for $1.14 Per Gallon | Department of Energy  

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

for $1.14 Per Gallon for $1.14 Per Gallon Driving for $1.14 Per Gallon June 11, 2013 - 7:30am Addthis News Media Contact (202) 586-4940 WASHINGTON - The Energy Department today launched the eGallon - a quick and simple way for consumers to compare the costs of fueling electric vehicles vs. driving on gasoline. Today's national average eGallon price is about $1.14, meaning that a typical electric vehicle could travel as far on $1.14 worth of electricity as a similar vehicle could travel on a gallon of gasoline. "Consumers can see gasoline prices posted at the corner gas station, but are left in the dark on the cost of fueling an electric vehicle. The eGallon will bring greater transparency to vehicle operating costs, and help drivers figure out how much they might save on fuel by choosing an

212

Sources Of Average Individual Radiation Exposure  

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

Of Average Individual Radiation Exposure Of Average Individual Radiation Exposure Natural background Medical Consumer products Industrial, security, educational and research Occupational 0.311 rem 0.300 rem 0.013 rem 0.0003 rem 0.0005 rem Savannah River Nuclear Solutions, LLC, provides radiological protection services and oversight at the Savannah River Site (SRS). These services include radiation dose measurements for persons who enter areas where they may be exposed to radiation or radioactive material. The results are periodically reported to monitored individuals. The results listed are based on a radiation dose system developed by the International Commission on Radiation Protection. The system uses the terms "effective dose," "equivalent dose" and units of rem. You may be more familiar with the term "millirem" (mrem), which is 1/1000 of a rem.

213

Fat turnover in obese slower than average  

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

9-04 9-04 For immediate release: 09/23/2011 | NR-11-09-04 Fat turnover in obese slower than average Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov Printer-friendly This scanning electron micrograph image shows part of a lobule of adipose tissue (body fat). Adipose tissue is specialized connective tissue that functions as the major storage site for fat. Photo courtesy of David Gregory & Debbie Marshall/Wellcome Images LIVERMORE, Calif. -- It may be more difficult for obese people to lose fat because the "turnover" rate is much slower for those overweight than average weight individuals. New research in the Sept. 25 online edition of the journal Nature shows that the turnover (storage and loss rate) of fat in the human body is about 1 1/2 years compared to fat cells, which turnover about every 10 years,

214

Natural Gas Prices: Well Above Recent Averages  

Gasoline and Diesel Fuel Update (EIA)

5 5 Notes: The recent surge in spot prices at the Henry Hub are well above a typical range for 1998-1999 (in this context, defined as the average, +/- 2 standard deviations). Past price surges have been of short duration. The possibility of a downward price adjustment before the end of next winter is a source of considerable risk for storage operators who acquire gas at recent elevated prices. Storage levels in the Lower 48 States were 7.5 percent below the 5-year average (1995-1999) by mid-August (August 11), although the differential is only 6.4 percent in the East, which depends most heavily on storage to meet peak demand. Low storage levels are attributable, at least in part, to poor price incentives: high current prices combined with only small price

215

Indirect CP violation results and HFAG averages  

E-Print Network [OSTI]

The current status of the search for indirect CP violation in the neutral D meson system at the B-factories and at LHCb is reported. The indirect CP asymmetry search is performed by the measurement of the proper-time asymmetry ($A_{\\Gamma}$) in decays of $D^0-\\bar{D^0}$ mesons to CP eigenstates, $K^-K^+$ and $\\pi^- \\pi^+$, and by $y_{CP}$, the ratio between the effective lifetime measured in decay to a CP eigenstate and that to the mixed eigenstate $K \\pi$. All results are consistent with the no CP violation hypothesis. The latest world averages for mixing and CP asymmetry in the charm sector evaluated by the Heavy Flavour Averaging Group are presented. The no mixing hypothesis is excluded at more than 12 standard deviations. The search for direct and indirect CP violation in the charm sector is consistent with no CP violation at 2.0% confident level.

Silvia Borghi

2013-12-17T23:59:59.000Z

216

Polarized electron beams at milliampere average current  

SciTech Connect (OSTI)

This contribution describes some of the challenges associated with developing a polarized electron source capable of uninterrupted days-long operation at milliAmpere average beam current with polarization greater than 80%. Challenges will be presented in the context of assessing the required level of extrapolation beyond the performance of today’s CEBAF polarized source operating at ? 200 uA average current. Estimates of performance at higher current will be based on hours-long demonstrations at 1 and 4 mA. Particular attention will be paid to beam-related lifetime-limiting mechanisms, and strategies to construct a photogun that operate reliably at bias voltage > 350kV.

Poelker, M. [Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States)

2013-11-07T23:59:59.000Z

217

Reducing Photobleaching in STED Microscopy with Higher Scanning Speed  

E-Print Network [OSTI]

Photobleaching is a major limitation of super-resolution STED microscopy. We show that the photobleaching rate in STED microscopy is slowed down by scanning with a higher linear speed, enabled by the large field of view in our custom-built resonant-scanning STED microscope. The effect of scanning speed on photobleaching is more remarkable at higher levels of depletion laser irradiance. With a depletion irradiance of 0.4 GW/cm$^2$ (time average), we were able to slow down the photobleaching of the Atto 647N dye by 80% with 8-fold faster scanning. Photobleaching is primarily caused by the depletion light acting upon the excited fluorophores. Experimental data qualitatively agree with a theoretical model. Our results encourage further increasing linear scanning speed for photobleaching reduction in STED microscopy.

Wu, Yong

2014-01-01T23:59:59.000Z

218

Robust control of switched reluctance motor drives using Kharitonov theorem and swarm intelligence  

Science Journals Connector (OSTI)

The paper presents a design technique for proportional integral (PI) robust current and speed controllers of switched reluctance motor (SRM) drives. The variations of stator inductance, equivalent resistance, moment of inertia and coefficient of friction are considered leading to uncertain plant representation of the drive. Robustness of the controllers is achieved through Kharitonov theorem considering parameter uncertainties over wide ranges of operation. To attain best performance, the design is cast as an optimisation problem solved by particle swarm optimisation (PSO) to ensure maximum possible degree of stability. Extensive comparisons with the classical methods are carried out showing noteworthy advantages of the proposed routine.

E.H.E. Bayoumi; M.A. Awadallah; H.M. Soliman

2009-01-01T23:59:59.000Z

219

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

220

Speeding Up Zeolite Evaluation for Carbon Capture  

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

Speeding Up Zeolite Evaluation for Carbon Capture Speeding Up Zeolite Evaluation for Carbon Capture Zeolite.png Schematic of an important class of porous materials known as...

Note: This page contains sample records for the topic "average driving speed" 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

Electric motor with controllable speed and torque  

Science Journals Connector (OSTI)

The proposed electric motor is characterized by controllable speed and torque ... shaft, at constant rotor speed. In this motor, the torque at the output shaft increases...

R. G. Khadeev

2011-01-01T23:59:59.000Z

222

Controlling proton source speeds catalyst | EMSL  

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

Controlling proton source speeds catalyst Controlling proton source speeds catalyst Nickel-based catalyst three times faster with adjustments to key acid Research showing that...

223

Neural and Fuzzy Adaptive Control of Induction Motor Drives  

SciTech Connect (OSTI)

This paper proposes an adaptive neural network speed control scheme for an induction motor (IM) drive. The proposed scheme consists of an adaptive neural network identifier (ANNI) and an adaptive neural network controller (ANNC). For learning the quoted neural networks, a back propagation algorithm was used to automatically adjust the weights of the ANNI and ANNC in order to minimize the performance functions. Here, the ANNI can quickly estimate the plant parameters and the ANNC is used to provide on-line identification of the command and to produce a control force, such that the motor speed can accurately track the reference command. By combining artificial neural network techniques with fuzzy logic concept, a neural and fuzzy adaptive control scheme is developed. Fuzzy logic was used for the adaptation of the neural controller to improve the robustness of the generated command. The developed method is robust to load torque disturbance and the speed target variations when it ensures precise trajectory tracking with the prescribed dynamics. The algorithm was verified by simulation and the results obtained demonstrate the effectiveness of the IM designed controller.

Bensalem, Y. [Research Unit of Modelisation, Analyse, Command of Systems MACS (Tunisia); Sbita, L.; Abdelkrim, M. N. [6029 Universite High School of Engineering-Gabes-Tunisia (Tunisia)

2008-06-12T23:59:59.000Z

224

Calculator program optimizes bit weight, rotary speed, reducing drilling cost  

SciTech Connect (OSTI)

Bit selection, bit weight, and rotary speed have repeatedly proven to be the most important and commonly overlooked alterable factors which control penetration rate, footage, and overall drilling cost. This is particularly true in offshore operations where drilling costs are highest and the greatest cost savings stand to be achieved through implementation of proven optimization techniques. The myth that bit weights and rotary speeds cannot be optimized in directional holes has hindered the industry from using this virtually cost-free method for reducing drilling cost. The use of optimized bit weights and rotary speeds in conjunction with minimum cost bit programs based on cost per foot analysis of previous bit runs in the area was implemented on a five-well platform in the Grand Isle Block 20 field, offshore Louisiana. Each of the directional wells was drilled substantially faster and cheaper than the discovery well, which was a straight hole. Average reductions in footage cost of 31.3%, based on daily operating cost of $30,000/day, and increase in average daily footage drilled of 45.2% were effected by ''collectively optimizing'' drilling performance. The ''Optimizer'' program is an HP-41CV adaptation of the Bourgoyne and Young drilling model. It was used to calculate the optimum bit weights and rotary speeds based on field drilling tests; historical bit and bearing wear data; and current operating conditions, cost, and constraints.

Simpson, M.A.

1984-04-23T23:59:59.000Z

225

Robust Condition Monitoring and Fault Diagnosis of Variable Speed Induction Motor Drives  

E-Print Network [OSTI]

detection (FD) probability versus SNR. ........................ 33 2.6 Experimental setup: (a) faulty test motors, (b) DC generator, (c) 3-hp induction motor, (d) data acquisition board, (e) torque monitor, (f) oscilloscope, and (g) spectrum analyzer... detection (FD) probability versus SNR. ........................ 33 2.6 Experimental setup: (a) faulty test motors, (b) DC generator, (c) 3-hp induction motor, (d) data acquisition board, (e) torque monitor, (f) oscilloscope, and (g) spectrum analyzer...

Choi, Seungdeog

2012-02-14T23:59:59.000Z

226

An investigation of irregular switching in three phase adjustable speed motor drives without neutral connection  

E-Print Network [OSTI]

Phase Model 9 One Cycle of Reference Current 17 10 Effect of Magnitude of E on Current Slope 18 11 Effect of Back EMF on Switching with Zero Degree Phase difference with Reference Current . 19 12 Effect of Back EMF on Switching with Ninety Degree... Phase Switching with Unacceptable Phase Inductance 37 25 Three Phase Switching with unacceptable Back EMF 38 26 Circuit Configuration during iVull Switching States 41 27 Three Phase Switching without Null Switching State . 47 CHAPTER I INTRODUCTION...

Arefeen, Shamsal

2012-06-07T23:59:59.000Z

227

Analysis and design of matrix converters for adjustable speed drives and distributed power sources  

E-Print Network [OSTI]

Recently, matrix converter has received considerable interest as a viable alternative to the conventional back-to-back PWM (Pulse Width Modulation) converter in the ac/ac conversion. This direct ac/ac converter provides some attractive...

Cha, Han Ju

2004-11-15T23:59:59.000Z

228

Variable Speed Drive Volumetric Tracking (VSDVT) for Airflow Control in Variable Air Volume (VAV) Systems  

E-Print Network [OSTI]

Volume Systems.? Proceedings of ACEEE 1994 Summer Study on Energy Efficiency in Buildings, Vol. 5, pp. 219-223. 3. Liu M., Zhu Y., Claridge D.E., and White E., 1997. ?Impact of Static Pressure Set Level on HVAC Energy Consumption and Indoor... Volume Systems.? Proceedings of ACEEE 1994 Summer Study on Energy Efficiency in Buildings, Vol. 5, pp. 219-223. 3. Liu M., Zhu Y., Claridge D.E., and White E., 1997. ?Impact of Static Pressure Set Level on HVAC Energy Consumption and Indoor...

Liu, M.

2002-01-01T23:59:59.000Z

229

Average resonance capture study of Te124  

Science Journals Connector (OSTI)

An average resonance capture study of Te124 was carried out by bombarding samples of Te123 with 2- and 24-keV neutron beams. The complete set of 0+, 1+, 2+ states disclosed by the experiment is consistent with the data of Robinson, Hamilton, and Snelling, demonstrating that there are no undetected states of these spins (especially 0+ states) below about 2500 keV. In particular, proposed 0+ levels at 1156 and 1290 keV are ruled out. This impacts various attempted interpretations in terms of intruder states, U(5), and O(6) symmetries.

R. F. Casten; J.-Y. Zhang; B.-C. Liao

1991-07-01T23:59:59.000Z

230

The eGallon: How Much Cheaper Is It to Drive on Electricity? | Department  

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

The eGallon: How Much Cheaper Is It to Drive on Electricity? The eGallon: How Much Cheaper Is It to Drive on Electricity? The eGallon: How Much Cheaper Is It to Drive on Electricity? June 10, 2013 - 11:00pm Addthis eGallon: Compare the costs of driving with electricity What is eGallon? It is the cost of fueling a vehicle with electricity compared to a similar vehicle that runs on gasoline. Did you know? On average, it costs about 3 times less to drive an electric vehicle. Find out how much it costs to fuel an electric vehicle in your state regular gasoline 0 6 4 1 0 3 · 0 2 0 4 8 6 0 8 9 2 3 5 0 electric eGallon 0 4 1 7 2 3 3 · 0 4 2 0 4 6 0 8 5 9 1 5 0 Data and Methodology The eGallon price is calculated using the most recently available state by state residential electricity prices. The state gasoline price above is either the statewide average retail price or a multi-state regional average

231

Average Price of Natural Gas Production  

Gasoline and Diesel Fuel Update (EIA)

. . Quantity and Average Price of Natural Gas Production in the United States, 1930-1996 (Volumes in Million Cubic Feet, Prices in Dollars per Thousand Cubic Feet) Table Year Gross Withdrawals Used for Repressuring Nonhydro- carbon Gases Removed Vented and Flared Marketed Production Extraction Loss Dry Production Average Wellhead Price of Marketed Production 1930 ....................... NA NA NA NA 1,978,911 75,140 1,903,771 0.08 1931 ....................... NA NA NA NA 1,721,902 62,288 1,659,614 0.07 1932 ....................... NA NA NA NA 1,593,798 51,816 1,541,982 0.06 1933 ....................... NA NA NA NA 1,596,673 48,280 1,548,393 0.06 1934 ....................... NA NA NA NA 1,815,796 52,190 1,763,606 0.06 1935 ....................... NA NA NA NA 1,968,963 55,488 1,913,475 0.06 1936 ....................... 2,691,512 73,507 NA 392,528 2,225,477

232

Average values and dispersion (in parentheses)  

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

Average values and dispersion (in parentheses) Average values and dispersion (in parentheses) Base-pair Parameters --------------------------------------------------------------------------------------- Shear Stretch Stagger Buckle Propeller Opening 3DNA A 0.01(0.23) -0.18(0.10) 0.02(0.25) -0.13(7.77) -11.79(4.14) 0.57(2.80) B 0.00(0.21) -0.15(0.12) 0.09(0.19) 0.53(6.74) -11.35(5.26) 0.63(3.05) CEHS A 0.01(0.23) -0.18(0.10) 0.02(0.25) -0.13(7.75) -11.82(4.14) 0.56(2.78) B 0.00(0.21) -0.14(0.12) 0.09(0.19) 0.53(6.73) -11.37(5.27) 0.62(3.03) CompDNA A 0.01(0.23) -0.18(0.10) 0.02(0.25) -0.12(7.70) -11.81(4.14) 0.56(2.79) B 0.00(0.21) -0.15(0.12) 0.09(0.19) 0.53(6.70) -11.37(5.26) 0.62(3.03) Curves A 0.01(0.23) -0.18(0.10) 0.02(0.25) -0.13(7.85) -11.76(4.12) 0.57(2.80)

233

Mobile Mapping and Personal Driving  

E-Print Network [OSTI]

-Computer Interaction Lab University of Maryland #12;Route Choice Matters Average driver spends a full week each year Custom annotation Enrich the data with personal notes Community and collaboration Fill in gaps tasks? Find the best route Find the best time to leave See which way other people go Add my own notes

Golbeck, Jennifer

234

Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric  

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

Low-Speed Vehicle and Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways to someone by E-mail Share Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways on Facebook Tweet about Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways on Twitter Bookmark Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways on Google Bookmark Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways on Delicious Rank Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways on Digg Find More places to share Alternative Fuels Data Center: Low-Speed

235

A Five-Leg Inverter for Driving a Traction Motor and a Compressor Motor  

SciTech Connect (OSTI)

This paper presents an integrated inverter for speed control of a traction motor and a compressor motor to reduce the compressor drive cost in EV/HEV applications. The inverter comprises five phase-legs; three of which are for control of a three-phase traction motor and the remaining two for a two-phase compressor motor with three terminals. The common terminal of the two-phase motor is tied to the neutral point of the three-phase traction motor to eliminate the requirement of a third phase leg. Further cost savings are made possible by sharing the switching devices, dc bus filter capacitors, gate drive power supplies, and control circuit. Simulation and experimental results are included to verify that speed control of the two motors is independent from each other.

Su, Gui-Jia [ORNL; Hsu, John S [ORNL

2006-01-01T23:59:59.000Z

236

Efficient Driving Tips to Help Ease the Pain at the Pump | Department of  

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

Efficient Driving Tips to Help Ease the Pain at the Pump Efficient Driving Tips to Help Ease the Pain at the Pump Efficient Driving Tips to Help Ease the Pain at the Pump March 15, 2011 - 7:30am Addthis Allison Casey Senior Communicator, NREL No doubt you've heard-or noticed yourself-that gas prices are rising again. It's always painful to fill up when you know the total will be more than it would have been yesterday. I can't do a lot about the total when you fill your tank, but I do have a few tips to help you fill up a little less often and save a bit of fuel and money. It's been awhile since we pointed you to FuelEconomy.gov, but this site is the best place to start if you're looking for info on efficient driving and vehicles. To get you started, remember these tips: Drive the speed limit. For every 5 miles per hour (mph) you drive

237

Efficient Driving Tips to Help Ease the Pain at the Pump | Department of  

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

Efficient Driving Tips to Help Ease the Pain at the Pump Efficient Driving Tips to Help Ease the Pain at the Pump Efficient Driving Tips to Help Ease the Pain at the Pump March 15, 2011 - 7:30am Addthis Allison Casey Senior Communicator, NREL No doubt you've heard-or noticed yourself-that gas prices are rising again. It's always painful to fill up when you know the total will be more than it would have been yesterday. I can't do a lot about the total when you fill your tank, but I do have a few tips to help you fill up a little less often and save a bit of fuel and money. It's been awhile since we pointed you to FuelEconomy.gov, but this site is the best place to start if you're looking for info on efficient driving and vehicles. To get you started, remember these tips: Drive the speed limit. For every 5 miles per hour (mph) you drive

238

Analysis and design of energy recovery snubbers for switched reluctance motor drives  

SciTech Connect (OSTI)

Snubber studies for switched reluctance motor (SRM) drives are nonexistent even though the power converter topologies are unique and do not fall under the category of inverter topologies applicable to AC motor drives. The importance of the snubbers does not come into the picture until either the power rating of the converter is high and in the multi-kW range or the switching frequency requirement is in the 20 kHz range. Such requirements are coming to the fore in many product development applications such as extruders, general purpose drives, integral starter generators for aircraft, electric vehicles, high speed spindles and centrifuges, etc. This paper is concerned with extending the Undeland snubber configuration to the two-switches per phase power converter topology of the SRM drive including the energy recovery feature. The energy recovery snubbers are then analyzed in terms of the various modes of operation encountered in the converter. A design procedure for the energy recovery snubbers is developed. The design procedure and the operation of the proposed snubber configuration in the SRM drive are experimentally verified with a laboratory prototype SRM drive. The impact of the proposed snubber on the power converter efficiency and its comparison with conventional snubber based systems, such as RCDs, is evaluated to assess the advantages of the proposed energy recovery snubber. 10 refs.

Gharpure, V.S.; Krishnan, R.; Lee, S. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Bradley Dept. of Electrical Engineering

1994-12-31T23:59:59.000Z

239

Progress of the Computer-Aided Engineering of Electric Drive Vehicle Batteries (CAEBAT) (Presentation)  

SciTech Connect (OSTI)

This presentation, Progress of Computer-Aided Engineering of Electric Drive Vehicle Batteries (CAEBAT) is about simulation and computer-aided engineering (CAE) tools that are widely used to speed up the research and development cycle and reduce the number of build-and-break steps, particularly in the automotive industry. Realizing this, DOE?s Vehicle Technologies Program initiated the CAEBAT project in April 2010 to develop a suite of software tools for designing batteries.

Pesaran, A. A.; Han, T.; Hartridge, S.; Shaffer, C.; Kim, G. H.; Pannala, S.

2013-06-01T23:59:59.000Z

240

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 -

Note: This page contains sample records for the topic "average driving speed" 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

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

242

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

243

Average deployments versus missile and defender parameters  

SciTech Connect (OSTI)

This report evaluates the average number of reentry vehicles (RVs) that could be deployed successfully as a function of missile burn time, RV deployment times, and the number of space-based interceptors (SBIs) in defensive constellations. Leakage estimates of boost-phase kinetic-energy defenses as functions of launch parameters and defensive constellation size agree with integral predictions of near-exact calculations for constellation sizing. The calculations discussed here test more detailed aspects of the interaction. They indicate that SBIs can efficiently remove about 50% of the RVs from a heavy missile attack. The next 30% can removed with two-fold less effectiveness. The next 10% could double constellation sizes. 5 refs., 7 figs.

Canavan, G.H.

1991-03-01T23:59:59.000Z

244

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...

245

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...

246

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...

247

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...

248

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...

249

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...

250

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...

251

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...

252

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...

253

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...

254

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

255

Short term wind speed estimation in Saudi Arabia  

Science Journals Connector (OSTI)

Abstract In this paper, three methods are used for the prediction of wind speed, 12 h ahead, based on 72 h previous wind speed values at three locations viz. Rawdat Bin Habbas (inland north), Juaymah (east coast), and Dhulom (inland western region) in Saudi Arabia. These methods are Particle Swarm Optimization (PSO), Abductory Induction Mechanism (AIM), and the Persistence (PER) model. The available data at each site was divided into three consecutive groups. The first 50% was used for training, the second 25% for validation, and the remaining 25% for testing. The validation data set was used to select the network architecture and other user defined parameters. The testing data was used only to assess the performance of the networks on future unseen data that has not been used for training or model selection. For each of the three methods, each of 12 networks was trained to produce the wind speed at one of the next 12 h. Relatively, Close agreements were found between the predicted and measured hourly mean wind speed for all three locations with coefficient of correlation R2 values between 81.7% and 98.0% for PSO, between 79.8% and 98.5% for AIM and between 59.5% and 88.4% for persistence model. Both PSO and AIM methods underestimated WS values during most hours with an average value of 0.036 m/s and 0.02 m/s, respectively. However, persistence model overestimated the WS by an average value of 0.51 m/s. It is shown that the two developed models outperformed the persistence model on predicting wind speed 12 h ahead of time with slight advantage to the PSO method.

Mohamed Ahmed Mohandes; Shafiqur Rehman

2014-01-01T23:59:59.000Z

256

Energy Department Invests $13 Million to Drive Innovative U.S. Solar  

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

3 Million to Drive Innovative U.S. 3 Million to Drive Innovative U.S. Solar Manufacturing Energy Department Invests $13 Million to Drive Innovative U.S. Solar Manufacturing December 11, 2013 - 10:44am Addthis News Media Contact (202) 586-4940 WASHINGTON -- Building on the Energy Department's all-of-the-above energy strategy to continue U.S. leadership in clean energy innovation, the Department today announced over $13 million for five projects to strengthen domestic solar manufacturing and speed commercialization of efficient, affordable photovoltaic and concentrating solar power technologies. As part of the Department's SunShot Initiative, these awards will help lower the cost of solar electricity, support a growing U.S. solar workforce and increase U.S. competitiveness in the global clean energy market.

257

Neuro-fuzzy-based space vector modulation for THD reduction in VSI fed induction motor drive  

Science Journals Connector (OSTI)

Space vector modulation is an optimal pulse width modulation technique for variable speed drive application. This paper proposes adaptive neuro-fuzzy inference system (ANFIS) based space vector modulation (SVM) technique for voltage source inverter. The proposed ANFIS network is independent of the switching frequency and uses hybrid learning algorithm for training. Due to this learning algorithm, SVM algorithm can be implemented very fast and the desired training error can be obtained with less number of iterations compared to other optimisation techniques like neural, fuzzy and genetic. The performance of ANFIS controlled drive is compared with the conventional SVM-based drive. The simulation results of inverter phase voltages obtained are verified experimentally using a Dspace kit (DS1104). The % THD value of simulation and experimental waveforms of inverter phase voltages for 3 kHz switching frequency is presented.

G. Durgasukumar; Mukesh Kumar Pathak

2012-01-01T23:59:59.000Z

258

Fuel Economy Standards, New Vehicle Sales, and Average Fuel Efficiency  

Science Journals Connector (OSTI)

The average fuel efficiency of new automobiles sold in the ... trend stagnated in 1981, however, and average fuel efficiency has actually fallen since 1987. Corporate Average Fuel Economy (CAFE) standards—the maj...

Steven G. Thorpe

1997-05-01T23:59:59.000Z

259

Fact #744: September 10, 2012 Average New Light Vehicle Price...  

Energy Savers [EERE]

4: September 10, 2012 Average New Light Vehicle Price Grows Faster than Average Used Light Vehicle Price Fact 744: September 10, 2012 Average New Light Vehicle Price Grows Faster...

260

STATE OF CALIFORNIA AREA WEIGHTED AVERAGE CALCULATION WORKSHEET: RESIDENTIAL  

E-Print Network [OSTI]

be used to calculate weight-averaged U-factors or averaged SHGC values for prescriptive envelope of window (the SHGC values of skylights cannot be averaged per §151(f)4A). a. "Area" can be replaced

Note: This page contains sample records for the topic "average driving speed" 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

Fact #849: December 1, 2014 Midsize Hybrid Cars Averaged 51%...  

Energy Savers [EERE]

average is the production-weighted harmonic mean. 2014 data are preliminary. Fact 849 Dataset Supporting Information Average Fuel Economy of New Midsize Cars - Hybrid vs....

262

Exhaust emissions of volatile organic compounds of powered two-wheelers: Effect of cold start and vehicle speed. Contribution to greenhouse effect and tropospheric ozone formation  

Science Journals Connector (OSTI)

Abstract Powered two-wheeler (PTW) vehicles complying with recent European type approval standards (stages Euro 2 and Euro 3) were tested on chassis dynamometer in order to measure exhaust emissions of about 25 volatile organic compounds (VOCs) in the range C1–C7, including carcinogenic compounds as benzene and 1,3-butadiene. The fleet consists of a moped (engine capacity ? 50 cm3) and three fuel injection motorcycles of different engine capacities (150, 300 and 400 cm3). Different driving conditions were tested (US FPT cycle, constant speed). Due to the poor control of the combustion and catalyst efficiency, moped is the highest pollutant emitter. In fact, fuel injection strategy and three way catalyst with lambda sensor are able to reduce VOC motorcycles' emission of about one order of magnitude with respect to moped. Cold start effect, that is crucial for the assessment of actual emission of \\{PTWs\\} in urban areas, was significant: 30–51% of extra emission for methane. In the investigated speed range, moped showed a significant maximum of VOC emission factor at minimum speed (10 km/h) and a slightly decreasing trend from 20 to 60 km/h; motorcycles showed on the average a less significant peak at 10 km/h, a minimum at 30–40 km/h and then an increasing trend with a maximum emission factor at 90 km/h. Carcinogenic \\{VOCs\\} show the same pattern of total VOCs. Ozone Formation Potential (OFP) was estimated by using Maximum Incremental Reactivity scale. The greatest contribution to tropospheric ozone formation comes from alkenes group which account for 50–80% to the total OFP. VOC contribution effect on greenhouse effect is negligible with respect to CO2 emitted.

M. Antonietta Costagliola; Fabio Murena; M. Vittoria Prati

2014-01-01T23:59:59.000Z

263

Bifurcation and control of chaos in Induction motor drives  

E-Print Network [OSTI]

The induction motor controlled by Indirect Field Oriented Control (IFOC) is known to have high performance and better stability. This paper reports the dynamical behavior of an indirect field oriented control (IFOC) induction motor drive in the light of bifurcation theory. The speed of high performance induction motor drive is controlled by IFOC method. The knowledge of qualitative change of the behavior of the motor such as equilibrium points, limit cycles and chaos with the change of motor parameters and load torque are essential for proper control of the motor. This paper provides a numerical approach to understand better the dynamical behavior of an indirect field oriented control of a current-fed induction motor. The focus is on bifurcation analysis of the IFOC motor, with a particular emphasis on the change that affects the dynamics and stability under small variations of Proportional Integral controller (PI) parameters, load torque and k, the ratio of the rotor time constant and its estimate etc. Bifurcation diagrams are computed. This paper also attempts to discuss various types of the transition to chaos in the induction motor. The results of the obtained bifurcation simulations give useful guidelines for adjusting both motor model and PI controller parameters. It is also important to ensure desired operation of the motor when the motor shows chaotic behavior. Infinite numbers of unstable periodic orbits are embedded in a chaotic attractor. Any unstable periodic orbit can be stabilized by proper control algorithm. The delayed feedback control method to control chaos has been implemented in this system.

Krishnendu Chakrabarty; Urmila Kar

2014-10-24T23:59:59.000Z

264

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

265

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

266

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

267

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.

268

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

269

High-Speed Traveling-Wave Electroabsorption Modulators Yi-Jen Chiu, Sheng Z. Zhang,a  

E-Print Network [OSTI]

with long devices and lower drive voltages at 1.55µm wavelength. An InGaAsP/InGaAsP MQW traveling, traveling wave design, microwave transmission, high-speed modulation, InGaAsP. 1. INTRODUCTION External the perpendicular electric field which causes a red-shifted optical absorption so that the optical transmission

Bowers, John

270

Speed control of switched reluctance motors taking into account mutual inductances and magnetic saturation effects  

Science Journals Connector (OSTI)

This paper deals with the speed control of switched reluctance motor (SRM) drives taking into account the effects of the mutual inductances between two adjacent phases and the effects of the magnetic saturation of the core. To overcome the problems commonly associated with single-phase excitation, a nonlinear SRM model, which is suitable for two-phase excitation and which takes into account the effects of mutual inductances between two adjacent phases and the magnetic saturation effects, is considered in the design of the proposed controllers. A feedback linearization control scheme and a sliding mode control scheme are designed for this motor drive. The proposed controllers guarantee the convergence of the phase currents and the rotor speed of the motor to their desired values. Simulation results indicate that the proposed controllers work well and that they are robust to changes in the parameters of the system and to changes in the load torque.

M. Alrifai; M. Zribi; M. Rayan; R. Krishnan

2010-01-01T23:59:59.000Z

271

Development of a New Flame Speed Vessel to Measure the Effect of Steam Dilution on Laminar Flame Speeds of Syngas Fuel Blends at Elevated Pressures and Temperatures  

E-Print Network [OSTI]

, including the H2O. .............................................................................................................................................. 35 Table 6 Standard L9 DOE test matrix for four factors (A-D) at three levels (1-3) (Ross... sensitivity analysis based on the maximum difference between the averaged laminar flame speeds at each DOE level (1, 2, or 3) for four oxygen equivalence ratios. ...................................................................................... 41 Table...

Krejci, Michael

2012-07-16T23:59:59.000Z

272

Walking, running, and resting under time, distance, and average speed constraints: optimality of walk–run–rest mixtures  

Science Journals Connector (OSTI)

...prediction may not be very ecological. 5.5. Altered body or...Garland, T . 1983 Scaling the ecological cost of transport to body...s-2006-924294 ) 51 Lee, J . 2009 Vehicle inertia impact on fuel consumption...conventional and hybrid electric vehicles using acceleration and coast...

2013-01-01T23:59:59.000Z

273

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

274

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

275

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

276

14 - Doxford low speed engines  

Science Journals Connector (OSTI)

Publisher Summary This chapter discusses low speed diesel engines from Doxford. Doxford is British firm that manufactured the distinctive Doxford opposed-piston (OP) low speed two-stroke engines. Doxford J-type engines were built in long and short stroke versions in bore sizes of 580, 670 and 760 mm, and with three to nine cylinders delivering up to around 20 000 kW. The engine is a single-acting two-stroke opposed-piston type with each cylinder having two pistons that move in opposite directions from a central combustion chamber. The last J-type engines were turbocharged on the constant pressure system following a changeover from the original impulse charging system. Three- and four-cylinder engines have only one turbocharger, mounted at the forward or aft end, while two or three chargers have been fitted to seven-, eight-, and nine-cylinder engines. Between each turbocharger and the engine entablature is a finned-tubed seawater-cooled after cooler. An electric auxiliary blower is provided for slow running or emergency duties. In its final years the company designed and produced the unusual three-cylinder 58JS3C model that developed 4050 kW at 220 rev/min and was specified to power several small containerships. The 58JS3C design was based on the J-type but with refinements addressing the higher rotational speed and relatively short piston stroke.

2004-01-01T23:59:59.000Z

277

Hispanics, Blacks and Whites driving under the influence of alcohol: results from the 1995 National Alcohol Survey  

Science Journals Connector (OSTI)

Objective: To report nationwide survey data on patterns of driving under the influence of alcohol among Whites, Blacks and Hispanics. Method: Data were obtained from a probability sample consisting of 1582 Blacks, 1585 Hispanics and 1636 Whites in the US household population. Interviews averaging 1 h in length were conducted in respondents’ homes by trained interviewers. Results: Self-reported rates of driving a car after having drunk enough ‘to be in trouble if stopped by the police’ were highest among White and Hispanic men (22 and 21%, respectively), as were lifetime arrest rates for driving under the influence of alcohol (13% for White men, 19% for Hispanic men). Additionally, our analyses suggest that drinkers who drive under the influence of alcohol are more likely to be men (regardless of ethnicity), consume more alcohol, and be alcohol dependent than drinkers who do not engage in alcohol-impaired driving.

Raul Caetano; Catherine L Clark

2000-01-01T23:59:59.000Z

278

Permanent magnet generators for renewable energy devices with wide speed range and pulsating power delivery  

Science Journals Connector (OSTI)

This paper describes the design of a direct-drive permanent-magnet generator for use in a novel sea-wave electrical generator. The basic system is briefly described and the target specification derived from the device and the wave tank performance. The design for the brushless permanent-magnet generators is then developed using SPEED PC-BDC and verified using Finite Element Analysis (PC-FEA). A diode bridge model is also tested using Portunus system simulation.

David G. Dorrell

2009-01-01T23:59:59.000Z

279

Estimation of the Design Wind Speed  

Science Journals Connector (OSTI)

The modern approach to the specification of the design wind speed favours the explicit format which directly presents the design value of the wind speed instead of hiding the value behind the product of the chara...

Michael Kasperski

2013-01-01T23:59:59.000Z

280

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

Note: This page contains sample records for the topic "average driving speed" 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

Anemometer Data (Wind Speed, Direction) for Laurel, Nebraska (2001 - 2002)  

Open Energy Info (EERE)

Laurel, Nebraska (2001 - 2002) Laurel, Nebraska (2001 - 2002) Dataset Summary Description Wind data collected from Laurel, Nebraska from a 20-meter anemometer as part of the Western Area Power Administration anemometer loan program. Ten-minute average wind speed and direction is available for 2001 - 2002. The data was originally made available by Wind Powering America, a DOE Office of Energy Efficiency & Renewable Energy (EERE) program. A dynamic map displaying all available data from DOE anemometer loan programs is available http://www.windpoweringamerica.gov/anemometerloans/projects.asp. Source EERE Date Released November 09th, 2010 (4 years ago) Date Updated November 09th, 2010 (4 years ago) Keywords wind wind direction wind speed Data text/csv icon Jun 11, 2001 - Jul 1, 2001 (csv, 144 KiB)

282

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

283

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

284

Wind speed vertical distribution at Mt Graham  

Science Journals Connector (OSTI)

......October 2010 research-article Papers Wind speed vertical distribution at Mt Graham...characterization of the vertical distribution of wind speed, V(h), is fundamental for an...many different reasons: (i) the wind speed shear contributes to trigger optical......

S. Hagelin; E. Masciadri; F. Lascaux

2010-10-01T23:59:59.000Z

285

PHYSICS 359 THE SPEED OF LIGHT  

E-Print Network [OSTI]

PHYSICS 359 THE SPEED OF LIGHT INTRODUCTION: The first evidence that light propagates with a finite from or approaching Jupiter. The first accurate measurements of the speed of light were made at a distance of about 9 km. Modern measurements of the speed of light are made by quite different methods

Landstreet, John D.

286

The Speed-of-Light Catastrophe  

Science Journals Connector (OSTI)

...July 1989 research-article The Speed-of-Light Catastrophe H. Ardavan It is shown...coordinates, c is the propagation speed of the waves described by the retarded...source moving on a curved path whose speed is in parts smaller and in parts...

1989-01-01T23:59:59.000Z

287

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

288

Modelling market diffusion of electric vehicles with real world driving data — Part I: Model structure and validation  

Science Journals Connector (OSTI)

Abstract The future market diffusion of electric vehicles (EVs) is of great importance for transport related green house gas emissions and energy demand. But most studies on the market diffusion of \\{EVs\\} focus on average driving patters and neglect the great variations in daily driving of individuals present in real-world driving data. Yet these variations are important for \\{EVs\\} since range limitations and the electric driving share of plug-in hybrids strongly impact the economic evaluation and consumer acceptance of EVs. Additionally, studies often focus on private cars only and neglect that commercial buyers account for relevant market shares in vehicle sales. Here, we propose a detailed, user specific model for the market diffusion of \\{EVs\\} and evaluation of EV market diffusion policies based on real-world driving data. The data and model proposed include both private and commercial users in Germany and allow the calculation of realistic electric driving shares for all usage patterns. The proposed model explicitly includes user heterogeneity in driving behaviour, different user groups, psychological aspects and the effect of charge-at-home options. Our results show that the proposed model reproduces group specific market shares, gives confidence bands of market shares and simulates individual electric driving shares.

Patrick Plötz; Till Gnann; Martin Wietschel

2014-01-01T23:59:59.000Z

289

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

290

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

291

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

292

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...

293

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

294

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

295

First-Of-Its-Kind Search Engine Will Speed Materials Research | Department  

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

First-Of-Its-Kind Search Engine Will Speed Materials Research First-Of-Its-Kind Search Engine Will Speed Materials Research First-Of-Its-Kind Search Engine Will Speed Materials Research November 3, 2011 - 1:05pm Addthis Washington, D.C. - Researchers from the Department of Energy's (DOE's) Lawrence Berkeley National Laboratory (Berkeley Lab) and the Massachusetts Institute of Technology (MIT) jointly launched today a groundbreaking new online tool called the Materials Project, which operates like a "Google" of material properties, enabling scientists and engineers from universities, national laboratories and private industry to accelerate the development of new materials, including critical materials. "By accelerating the development of new materials, we can drive discoveries that not only help power clean energy, but also are used in

296

First-Of-Its-Kind Search Engine Will Speed Materials Research | Department  

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

First-Of-Its-Kind Search Engine Will Speed Materials Research First-Of-Its-Kind Search Engine Will Speed Materials Research First-Of-Its-Kind Search Engine Will Speed Materials Research November 3, 2011 - 1:05pm Addthis Washington, D.C. - Researchers from the Department of Energy's (DOE's) Lawrence Berkeley National Laboratory (Berkeley Lab) and the Massachusetts Institute of Technology (MIT) jointly launched today a groundbreaking new online tool called the Materials Project, which operates like a "Google" of material properties, enabling scientists and engineers from universities, national laboratories and private industry to accelerate the development of new materials, including critical materials. "By accelerating the development of new materials, we can drive discoveries that not only help power clean energy, but also are used in

297

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

298

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

299

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...

300

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...

Note: This page contains sample records for the topic "average driving speed" 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

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...

302

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...

303

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,...

304

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...

305

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...

306

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...

307

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...

308

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...

309

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...

310

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...

311

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...

312

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

313

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...

314

Deduction of Lorentz Transformation from the existence of absolute rest. Deduction of the speed of light in any frame of reference  

E-Print Network [OSTI]

We begin by admitting the following: (i) there is a frame of reference where the speed of light is the same in any direction (that speed is c) (ii) the average speed of light on a two-way journey is c in every frame of reference. From this two premises we obtain an expression for the speed of light which implies the speed of light depends on the motion of the frame of reference. Also from this two premises solely we deduct Lorentz Transformation.

Rodrigo de Abreu

2002-10-05T23:59:59.000Z

315

Radial-Gap Permanent Magnet Motor and Drive Research FY 2004  

SciTech Connect (OSTI)

The objective of this task was to study permanent magnet (PM) radial-gap traction drive systems that could meet the U.S. Department of Energy FreedomCAR Program's 2010 goals to expose weaknesses or identify strengths. Initially, the approach was to compare attributes such as physical deformations during operation, performance (torque, power, efficiency versus speed), material requirements (strength), material costs, manufacturability, weight, power density, specific power, reliability, and drivability for specific motors. Three motors selected were the commercially available 60-kW radial-gap surface-mounted PM motor manufactured by UQM Technologies, Inc.; a hypothetical PM motor with rotor-supported magnets similar to the Honda MCF-21; and Delphi's automotive electric machine drive motor, whose rotor is a ferromagnetic cylinder, held at one end by a shaft that supports the magnets on its inner surface. Potential problems have appeared related to PM motors, such as (1) high no-load spin losses and high operational power losses, probably from eddy current losses in the rotor; (2) the undemonstrated dual mode inverter control (DMIC) for driving a brushless dc motor (BDCM) (UQM and Delphi motors); (3) uncertainty about the potential for reducing current with DMIC; and (4) uncertainty about the relation between material requirements and maximum rotor speed. Therefore, the approach was changed to study in detail three of the comparison attributes: drivability, performance, and material requirements. Drivability and related problems were examined by demonstrating that DMIC may be used to drive an 18-pole 30-kW PM motor to 6000 rpm, where the maximum electrical frequency is 900 Hz. An available axial-gap test motor with 18 poles was used because its control is identical to that of a radial gap PM motor. Performance was analytically examined, which led to a derivation showing that DMIC controls a PM motor so that the motor uses minimum current to produce any power regardless of speed for relative speeds, n = {omega}/{omega}{sub base} {ge} 2. Performance was also examined with efficiency measurements during the 30-kW PM motor test. Material requirements were examined with finite-element analyses (FEA) to determine the speed and location where yield starts and the corresponding deformations and stresses.

McKeever, J.W.

2005-02-11T23:59:59.000Z

316

Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average  

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

8: July 12, 2004 8: July 12, 2004 Expected Average Annual Miles to someone by E-mail Share Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on Facebook Tweet about Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on Twitter Bookmark Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on Google Bookmark Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on Delicious Rank Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on Digg Find More places to share Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on AddThis.com... Fact #328: July 12, 2004 Expected Average Annual Miles Twenty-five percent of the respondents to a nationwide survey said that

317

Fact #614: March 15, 2010 Average Age of Household Vehicles  

Broader source: Energy.gov [DOE]

The average age of household vehicles has increased from 6.6 years in 1977 to 9.2 years in 2009. Pickup trucks have the oldest average age in every year listed. Sport utility vehicles (SUVs), first...

318

Fact #615: March 22, 2010 Average Vehicle Trip Length  

Broader source: Energy.gov [DOE]

According to the latest National Household Travel Survey, the average trip length grew to over 10 miles in 2009, just slightly over the 9.9 mile average in 2001. Trips to work in 2009 increased to...

319

Fact #835: August 25, Average Historical Annual Gasoline Pump...  

Energy Savers [EERE]

5: August 25, Average Historical Annual Gasoline Pump Price, 1929-2013 Fact 835: August 25, Average Historical Annual Gasoline Pump Price, 1929-2013 When adjusted for inflation,...

320

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

Note: This page contains sample records for the topic "average driving speed" 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

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.

322

A narrow-band high-speed switched-capacitor sixth order bandpass ladder filter  

E-Print Network [OSTI]

In narrow-band high-speed switched-capacitor filters, the main limitation comes from the capacitance spread and from amplifier settling time. A secondary clock, that averages at an integer fraction of the main clock signal, is used to reduce...

Adut, Jozef

2012-06-07T23:59:59.000Z

323

Spherical averages and applications to spherical splines and interpolation  

Science Journals Connector (OSTI)

This article introduces a method for computing weighted averages on spheres based on least squares minimization that respects spherical distance. We prove existence and uniqueness properties of the weighted averages, and give fast iterative algorithms ... Keywords: Bézier curve, B-spline, barycentric coordinates, least squares minimization, quaternion interpolation, quaternions, spherical average, spherical interpolation, spherical mean, spline curve, spline interpolation

Samuel R. Buss; Jay P. Fillmore

2001-04-01T23:59:59.000Z

324

High-Speed Optical Spectroscopy  

E-Print Network [OSTI]

The large surveys and sensitive instruments of modern astronomy are turning ever more examples of variable objects, many of which are extending the parameter space to testing theories of stellar evolution and accretion. Future projects such as the Laser Interferometer Space Antenna (LISA) and the Large Synoptic Survey Telescope (LSST) will only add more challenging candidates to this list. Understanding such objects often requires fast spectroscopy, but the trend for ever larger detectors makes this difficult. In this contribution I outline the science made possible by high-speed spectroscopy, and consider how a combination of the well-known progress in computer technology combined with recent advances in CCD detectors may finally enable it to become a standard tool of astrophysics.

T. R. Marsh

2007-06-28T23:59:59.000Z

325

High speed sampler and demultiplexer  

DOE Patents [OSTI]

A high speed sampling demultiplexer based on a plurality of sampler banks, each bank comprising a sample transmission line for transmitting an input signal, a strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates at respective positions along the sample transmission line for sampling the input signal in response to the strobe signal. Strobe control circuitry is coupled to the plurality of banks, and supplies a sequence of bank strobe signals to the strobe transmission lines in each of the plurality of banks, and includes circuits for controlling the timing of the bank strobe signals among the banks of samplers. Input circuitry is included for supplying the input signal to be sampled to the plurality of sample transmission lines in the respective banks. The strobe control circuitry can repetitively strobe the plurality of banks of samplers such that the banks of samplers are cycled to create a long sample length. Second tier demultiplexing circuitry is coupled to each of the samplers in the plurality of banks. The second tier demultiplexing circuitry senses the sample taken by the corresponding sampler each time the bank in which the sampler is found is strobed. A plurality of such samples can be stored by the second tier demultiplexing circuitry for later processing. Repetitive sampling with the high speed transient sampler induces an effect known as "strobe kickout". The sample transmission lines include structures which reduce strobe kickout to acceptable levels, generally 60 dB below the signal, by absorbing the kickout pulses before the next sampling repetition.

McEwan, Thomas E. (Livermore, CA)

1995-01-01T23:59:59.000Z

326

High speed sampler and demultiplexer  

DOE Patents [OSTI]

A high speed sampling demultiplexer based on a plurality of sampler banks, each bank comprising a sample transmission line for transmitting an input signal, a strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates at respective positions along the sample transmission line for sampling the input signal in response to the strobe signal. Strobe control circuitry is coupled to the plurality of banks, and supplies a sequence of bank strobe signals to the strobe transmission lines in each of the plurality of banks, and includes circuits for controlling the timing of the bank strobe signals among the banks of samplers. Input circuitry is included for supplying the input signal to be sampled to the plurality of sample transmission lines in the respective banks. The strobe control circuitry can repetitively strobe the plurality of banks of samplers such that the banks of samplers are cycled to create a long sample length. Second tier demultiplexing circuitry is coupled to each of the samplers in the plurality of banks. The second tier demultiplexing circuitry senses the sample taken by the corresponding sampler each time the bank in which the sampler is found is strobed. A plurality of such samples can be stored by the second tier demultiplexing circuitry for later processing. Repetitive sampling with the high speed transient sampler induces an effect known as ``strobe kickout``. The sample transmission lines include structures which reduce strobe kickout to acceptable levels, generally 60 dB below the signal, by absorbing the kickout pulses before the next sampling repetition. 16 figs.

McEwan, T.E.

1995-12-26T23:59:59.000Z

327

Study of the Advantages of Internal Permanent Magnet Drive Motor with Selectable Windings for Hybrid-Electric Vehicles  

SciTech Connect (OSTI)

This report describes research performed on the viability of changing the effectively active number of turns in the stator windings of an internal permanent magnet (IPM) electric motor to strengthen or weaken the magnetic fields in order to optimize the motor's performance at specific operating speeds and loads. Analytical and simulation studies have been complemented with research on switching mechanisms to accomplish the task. The simulation studies conducted examine the power and energy demands on a vehicle following a series of standard driving cycles and the impact on the efficiency and battery size of an electrically propelled vehicle when it uses an IPM motor with turn-switching capabilities. Both full driving cycle electric propulsion and propulsion limited starting from zero to a set speed have been investigated.

Otaduy, P.J.; Hsu, J.S.; Adams, D.J.

2007-11-30T23:59:59.000Z

328

Analysis of field-oriented controlled induction motor drives under sensor faults and an overview of sensorless schemes  

Science Journals Connector (OSTI)

Abstract To obtain high dynamic performance on induction motor drives (IMD), variable voltage and variable frequency operation has to be performed by measuring speed of rotation and stator currents through sensors and fed back them to the controllers. When the sensors are undergone a fault, the stability of control system, may be designed for an industrial process, is disturbed. This paper studies the negative effects on a 12.5 hp induction motor drives when the field oriented control system is subjected to sensor faults. To illustrate the importance of this study mine hoist load diagram is considered as shaft load of the tested machine. The methods to recover the system from sensor faults are discussed. In addition, the various speed sensorless schemes are reviewed comprehensively.

D Arun Dominic; Thanga Raj Chelliah

2014-01-01T23:59:59.000Z

329

Joint interpretation of on-board vision and static GPS cartography for determination of correct speed limit  

E-Print Network [OSTI]

We present here a first prototype of a "Speed Limit Support" Advance Driving Assistance System (ADAS) producing permanent reliable information on the current speed limit applicable to the vehicle. Such a module can be used either for information of the driver, or could even serve for automatic setting of the maximum speed of a smart Adaptive Cruise Control (ACC). Our system is based on a joint interpretation of cartographic information (for static reference information) with on-board vision, used for traffic sign detection and recognition (including supplementary sub-signs) and visual road lines localization (for detection of lane changes). The visual traffic sign detection part is quite robust (90% global correct detection and recognition for main speed signs, and 80% for exit-lane sub-signs detection). Our approach for joint interpretation with cartography is original, and logic-based rather than probability-based, which allows correct behaviour even in cases, which do happen, when both vision and cartograp...

Bargeton, Alexandre; Nashashibi, Fawzi; Puthon, Anne-Sophie

2010-01-01T23:59:59.000Z

330

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL. 47, NO. 1, JANUARY/FEBRUARY 2011 223 EMI Study of Three-Phase Inverter-Fed Motor Drives  

E-Print Network [OSTI]

of Three-Phase Inverter-Fed Motor Drives Bertrand Revol, James Roudet, Jean-Luc Schanen, Senior Member setup and can be used during the design of a variable-speed inverter motor association. The objective in an inverter­motor association in order to depict the influence of elements, such as the elec- tromagnetic

Paris-Sud XI, Université de

331

High-Pressure Flame Speed Measurements  

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

addition on flame speeds of hydrocarbon fuels 3. Soot formation and explosive gasification in burning droplets of dieselbiodieselethanol blends C. K. Law Princeton...

332

Plan to speed up drug review approved  

Science Journals Connector (OSTI)

Plan to speed up drug review approved ... Proposed changes in the New Drug Application procedure will shorten review times, reduce paperwork, and save money ...

DAVID HANSON

1982-07-12T23:59:59.000Z

333

Wind Speed Prediction Via Time Series Modeling.  

E-Print Network [OSTI]

??Projected construction of nearby wind farms motivates this study of statistical forecasting of wind speed, for which accurate prediction is critically important to the fluid… (more)

Alexander, Daniel

2009-01-01T23:59:59.000Z

334

High-speed digital color imaging pyrometry  

Science Journals Connector (OSTI)

Temperature measurements of high-explosive and combustion processes are difficult to obtain due to the speed and environment of the events. To overcome these challenges, we have...

Densmore, John M; Biss, Matthew M; McNesby, Kevin L; Homan, Barrie E

2011-01-01T23:59:59.000Z

335

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":""}]}

336

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

337

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

338

High speed imager test station  

DOE Patents [OSTI]

A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment. 12 figs.

Yates, G.J.; Albright, K.L.; Turko, B.T.

1995-11-14T23:59:59.000Z

339

High speed imager test station  

DOE Patents [OSTI]

A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment.

Yates, George J. (Santa Fe, NM); Albright, Kevin L. (Los Alamos, NM); Turko, Bojan T. (Moraga, CA)

1995-01-01T23:59:59.000Z

340

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

Note: This page contains sample records for the topic "average driving speed" 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

Vehicle Technologies Office: Fact #310: March 8, 2004 Average Material  

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

0: March 8, 2004 0: March 8, 2004 Average Material Consumption for a Domestic Automobile to someone by E-mail Share Vehicle Technologies Office: Fact #310: March 8, 2004 Average Material Consumption for a Domestic Automobile on Facebook Tweet about Vehicle Technologies Office: Fact #310: March 8, 2004 Average Material Consumption for a Domestic Automobile on Twitter Bookmark Vehicle Technologies Office: Fact #310: March 8, 2004 Average Material Consumption for a Domestic Automobile on Google Bookmark Vehicle Technologies Office: Fact #310: March 8, 2004 Average Material Consumption for a Domestic Automobile on Delicious Rank Vehicle Technologies Office: Fact #310: March 8, 2004 Average Material Consumption for a Domestic Automobile on Digg Find More places to share Vehicle Technologies Office: Fact #310:

342

Average Interest Rate for Treasury Securities | Data.gov  

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

Average Interest Rate for Treasury Securities Average Interest Rate for Treasury Securities Consumer Data Apps Challenges Resources About Blogs Let's Talk Feedback Consumer You are here Data.gov » Communities » Consumer » Data Average Interest Rate for Treasury Securities Dataset Summary Description This dataset shows the average interest rates for U.S Treasury securities for the most recent month compared with the same month of the previous year. The data is broken down by the various marketable and non-marketable securities. The summary page for the data provides links for monthly reports from 2001 through the current year. Average Interest Rates are calculated on the total unmatured interest-bearing debt. The average interest rates for total marketable, total non-marketable and total interest-bearing debt do not include the U.S. Treasury Inflation-Protected Securities.

343

Extended Constant Power Speed Range of the Brushless DC Motor Through Dual Mode Inverter Control  

SciTech Connect (OSTI)

The trapezoidal back electromotive force (emf) brushless direct current (dc) motor (BDCM) with surface-mounted magnets has high-power density and efficiency especially when rare-earth magnet materials are used. Traction applications, such as electric vehicles, could benefit significantly from the use of such motors. Unfortunately, a practical means for driving the motor over a constant power speed ratio (CPSR) of 5:1 or more has not yet been developed. A key feature of these motors is that they have low internal inductance. The phase advance method is effective in controlling the motor power over such a speed range, but the current at high speed may be several times greater than that required at the base speed. The increase in current during high-speed operation is due to the low motor inductance and the action of the bypass diodes of the inverter. The use of such a control would require increased current rating of the inverter semiconductors and additional cooling for the inverter, where the conduction losses increase proportionally with current, and especially for the motor, where the losses increase with the square of the current. The high current problems of phase advance can be mitigated by adding series inductance; however, this reduces power density, requires significant increase in supply voltage, and leaves the CPSR performance of the system highly sensitive to variations in the available voltage. A new inverter topology and control scheme has been developed that can drive low-inductance BDCMs over the CPSR that would be required in electric vehicle applications. This new controller is called the dual-mode inverter control (DMIC). It is shown that the BDCM has an infinite CPSR when it is driven by the DMIC.

Lawler, J.S.

2000-06-23T23:59:59.000Z

344

Relationship between design speed and operating speed at horizontal curves on suburban arterials  

E-Print Network [OSTI]

RELATIONSHIP BETWEEN DESIGN SPEED AND OPERATING SPEED AT HORIZONTAL CURVES ON SUBURBAN ARTERIALS A Thesis by CARL BRIAN SHAMBURGER Submitted to the OIIice of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 1995 Major Subject: Civil Engineering RELATIONSHIP BETWEEN DESIGN SPEED AND OPERATING SPEED AT HORIZONTAL CURVES ON SUBURBAN ARTERIALS A Thesis by CARL BRIAN SHAMBURGER Submitted to Texas A&M University...

Shamburger, Carl Brian

2012-06-07T23:59:59.000Z

345

Measuring the Impacts of Speed Reduction Technologies  

E-Print Network [OSTI]

-Seoud, Edward Anderson #12;Background Identified as a problem area Sharp curve & excessive speed High crash;Comparison of Mean Zones - Southbound, Commercial Vehicles 45 46 47 48 49 50 51 52 53 54 55 -1300 -1100 -900-70 Speed Category Before After #12;At nearest rest area

Bertini, Robert L.

346

Aeroacoustic sources of high speed maglev trains  

Science Journals Connector (OSTI)

Noise has been identified as a potential source of concern associated with the introduction of high speed maglev trains into the existing transportation system in the United States. The first operational maglev systems have been shown to generate high noise levels at high speeds with noise levels over 100 dBA at 25 m typical for the maximum cruising speeds. At speeds greater than 150 miles per hour the dominant noise source is of aerodynamic origin proportional to the 6th power of velocity at high speeds and 8th power dependency at very high speeds. An investigation of the noisegenerated by maglev systems was conducted to determine noise sources develop noise criteria for high speed maglev systems prepare design guidelines for noise control and recommend an acoustic test facility for maglev research. This paper describes the findings of the study including recommendations for further research to develop a better understanding of the aerodynamic soundgeneration associated with high speed maglev operations. [Work performed under contract to U.S. Department of Transportation as part of the National Maglev Initiative.

Carl E. Hanson

1994-01-01T23:59:59.000Z

347

On the constancy of light speed  

E-Print Network [OSTI]

Method given for intuitively visualizing constancy of light speed. Using mass-energy equivalence, we can show with the help of simple thought experiments, that velocity time dilation and gravitational time dilation are a necessary consequence of principle of relativity. Speed of light is discussed in the context of each kind of time dilation.

Abdul Rouf

2009-11-15T23:59:59.000Z

348

Solar: monthly and annual average global horizontal (GHI) GIS...  

Open Energy Info (EERE)

Facebook icon Twitter icon Home Organizations DLR - Deutsches Zentrum fr ... Solar: monthly and annual ... Dataset Activity Stream Solar: monthly and annual average...

349

,"Selected National Average Natural Gas Prices"  

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

Selected National Average Natural Gas Prices" Selected National Average Natural Gas Prices" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Average Natural Gas Prices",11,"Monthly","11/2013","1/15/1973" ,"Data 2","Annual Average Natural Gas Prices",11,"Annual",2012,"6/30/1922" ,"Release Date:","12/12/2013" ,"Next Release Date:","1/7/2014" ,"Excel File Name:","ngm03vmall.xls" ,"Available from Web Page:","http://www.eia.gov/oil_gas/natural_gas/data_publications/natural_gas_monthly/ngm.html"

350

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...

351

Optimal control for variable-speed wind generation systems using General Regression Neural Network  

Science Journals Connector (OSTI)

Abstract An induction generator (IG) speed drive with the application of an optimal controller and a proposed General Regression Neural Network (GRNN) controller is introduced in this paper. Grid connected wind energy conversion system (WECS) present interesting control demands, due to the intrinsic nonlinear characteristic of wind mills and electric generators. The GRNN with adaptive ant colony optimization (AACO) torque compensation is feed-forward to increase the robustness of the wind driven induction generator system. An optimal control loop for the wind power system is designed. The optimality of the whole system is defined in relation with the trade-off between the wind energy conversion maximization and the minimization of the induction generator torque variation that is responsible for the frequency fluctuations. This is achieved by using a combined optimization criterion, resulting in a LQ tracking problem with an infinite horizon and a measurable exogenous variable (wind speed). The proposed controller is designed to drive the turbine speed to extract maximum power from the wind and adjust to the power regulation.

Chih-Ming Hong; Fu-Sheng Cheng; Chiung-Hsing Chen

2014-01-01T23:59:59.000Z

352

Variation of Langmuir wave polarization with electron beam speed in type III radio bursts  

SciTech Connect (OSTI)

Observations by the twin STEREO spacecraft of in-situ electric field waveforms and radio signatures associated with type III radio bursts have demonstrated that the polarization of electron beam-driven waves near the local plasma frequency depends strongly on the speed of the driving electron beam. We expand upon a previous study by including all radio bursts with in-situ waveforms observed by STEREO in 2011. The expanded data set contains five times more radio bursts (35 up from 7) and three times as many Langmuir waves (663 up from 168). While this expanded study supports the results of the original study, that faster (slower) beam electrons drive waves with strong (weak) electric fields perpendicular to the local magnetic field, the larger data set emphasizes that the observation of strong perpendicular electric fields at high electron beam speeds is probabilistic rather than definite. This property supports the interpretation of wave polarization dependence on beam speed as Langmuir/z-mode waves shifted to small wave number through interaction with turbulent solar wind density fluctuations.

Malaspina, David M. [Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80303 (United States); Cairns, Iver H. [School of Physics, University of Sydney, New South Wales 2006 (Australia); Ergun, Robert E. [Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80303 (United States) and Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80303 (United States)

2013-06-13T23:59:59.000Z

353

Predicting Light-Duty Vehicle Fuel Economy as a Function of Highway Speed  

SciTech Connect (OSTI)

The www.fueleconomy.gov website offers information such as window label fuel economy for city, highway, and combined driving for all U.S.-legal light-duty vehicles from 1984 to the present. The site is jointly maintained by the U.S. Department of Energy and the U.S. Environmental Protection Agency (EPA), and also offers a considerable amount of consumer information and advice pertaining to vehicle fuel economy and energy related issues. Included with advice pertaining to driving styles and habits is information concerning the trend that as highway cruising speed is increased, fuel economy will degrade. An effort was undertaken to quantify this conventional wisdom through analysis of dynamometer testing results for 74 vehicles at steady state speeds from 50 to 80 mph. Using this experimental data, several simple models were developed to predict individual vehicle fuel economy and its rate of change over the 50-80 mph speed range interval. The models presented require a minimal number of vehicle attributes. The simplest model requires only the EPA window label highway mpg value (based on the EPA specified estimation method for 2008 and beyond). The most complex of these simple model uses vehicle coast-down test coefficients (from testing prescribed by SAE Standard J2263) known as the vehicle Target Coefficients, and the raw fuel economy result from the federal highway test. Statistical comparisons of these models and discussions of their expected usefulness and limitations are offered.

Thomas, John F [ORNL; Hwang, Ho-Ling [ORNL; West, Brian H [ORNL; Huff, Shean P [ORNL

2013-01-01T23:59:59.000Z

354

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.

355

Hard Drive Power Consumption Uncovered Computer Laboratory  

E-Print Network [OSTI]

Hard Drive Power Consumption Uncovered Computer Laboratory Digital Technology Group Anthony Hylick, Andrew Rice, Brian Jones, Ripduman Sohan Motivation Attempts to reduce power consumption have mainly of power consumption and identify the need for a more expressive API between the OS and hardware devices

Cambridge, University of

356

COMMITMENT & INTEGRITY DRIVE RESULTS Industry, Nonprofit,  

E-Print Network [OSTI]

-containing particles in wastewater. #12;000000.00 3COMMITMENT & INTEGRITY DRIVE RESULTS My Industry Experience 6 years, drinking water, sanitary wastewater, industrial wastewater, and stormwater Worked for private industry of waste, materials storage, product recycling, remediation, property transfers Internal Pressures Profit

Lipson, Michal

357

Safety Considerations When Driving on Rural Roads  

E-Print Network [OSTI]

procedures to follow. Characteristics of rural or forest roads Extra caution is required when driving-moving vehicles, animals, debris) · Unusually steep hills or sharp curves Since help may often be difficult.Agricultural or prescribed forest burning may produce smoke on roads. Hazard: Approaching vehicles, livestock or wild animals

Vivoni, Enrique R.

358

Recent Transitions in Ethiopian Homegarden Agroforestry: Driving  

E-Print Network [OSTI]

of the system dynamics shows that all underlying driving forces interact with each other and cause change, shrinking farm size, poverty and a new market situation and has gradually been changing towards monoculture production of khat (Catha edulis) and eucalyptus species. The consequence of the transitions on ecology

359

BRAF Inactivation Drives Aneuploidy by Deregulating CRAF  

Science Journals Connector (OSTI)

...o mice were born alive at a frequency of 13% and these adult mice...S4). Significantly, the frequency of diploid metaphases decreased...kinetics of tetraploidization was variable (Fig. 4C). Aneuploidization...Craf activation, and this drives aneuploidy in the spleen and...

Tamihiro Kamata; Jahan Hussain; Susan Giblett; Robert Hayward; Richard Marais; and Catrin Pritchard

2010-11-01T23:59:59.000Z

360

Program assists steam drive design project  

SciTech Connect (OSTI)

A new program for the HP-41CV programmable calculator will compute all parameters required for a steam drive project design. The Marx and Langenheim model assumptions are used to solve a more advanced version of the Myhill and Stegemeier model. Also, the Mandl and Volek model assuptions are used to compute the size of the steam zone.

Mendez, A.A.

1984-08-27T23:59:59.000Z

Note: This page contains sample records for the topic "average driving speed" 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

Alternative Fuels Data Center: Texas Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Texas Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Texas Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Texas Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Texas Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Texas Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Texas Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Texas Laws and Incentives for Driving / Idling

362

Alternative Fuels Data Center: Nebraska Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Nebraska Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Nebraska Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Nebraska Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Nebraska Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Nebraska Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Nebraska Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Nebraska Laws and Incentives for Driving / Idling

363

Alternative Fuels Data Center: Maine Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Maine Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Maine Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Maine Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Maine Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Maine Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Maine Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Maine Laws and Incentives for Driving / Idling

364

Alternative Fuels Data Center: Federal Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Federal Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Federal Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Federal Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Federal Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Federal Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Federal Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Federal Laws and Incentives for Driving / Idling

365

Alternative Fuels Data Center: Florida Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Florida Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Florida Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Florida Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Florida Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Florida Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Florida Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Florida Laws and Incentives for Driving / Idling

366

Alternative Fuels Data Center: Iowa Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Iowa Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Iowa Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Iowa Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Iowa Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Iowa Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Iowa Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Iowa Laws and Incentives for Driving / Idling

367

Alternative Fuels Data Center: Maryland Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Maryland Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Maryland Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Maryland Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Maryland Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Maryland Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Maryland Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Maryland Laws and Incentives for Driving / Idling

368

Alternative Fuels Data Center: Alaska Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Alaska Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Alaska Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Alaska Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Alaska Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Alaska Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Alaska Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Alaska Laws and Incentives for Driving / Idling

369

Alternative Fuels Data Center: Vermont Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Vermont Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Vermont Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Vermont Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Vermont Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Vermont Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Vermont Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Vermont Laws and Incentives for Driving / Idling

370

Vehicle Technologies Office: Fact #452: January 15, 2007 Driving  

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

2: January 15, 2: January 15, 2007 Driving Differences to someone by E-mail Share Vehicle Technologies Office: Fact #452: January 15, 2007 Driving Differences on Facebook Tweet about Vehicle Technologies Office: Fact #452: January 15, 2007 Driving Differences on Twitter Bookmark Vehicle Technologies Office: Fact #452: January 15, 2007 Driving Differences on Google Bookmark Vehicle Technologies Office: Fact #452: January 15, 2007 Driving Differences on Delicious Rank Vehicle Technologies Office: Fact #452: January 15, 2007 Driving Differences on Digg Find More places to share Vehicle Technologies Office: Fact #452: January 15, 2007 Driving Differences on AddThis.com... Fact #452: January 15, 2007 Driving Differences Those living in the center city drive fewer miles in a day than those in

371

Alternative Fuels Data Center: Indiana Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Indiana Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Indiana Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Indiana Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Indiana Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Indiana Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Indiana Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Indiana Laws and Incentives for Driving / Idling

372

Alternative Fuels Data Center: Delaware Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Delaware Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Delaware Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Delaware Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Delaware Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Delaware Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Delaware Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Delaware Laws and Incentives for Driving / Idling

373

Alternative Fuels Data Center: Wyoming Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Wyoming Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Wyoming Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Wyoming Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Wyoming Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Wyoming Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Wyoming Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Wyoming Laws and Incentives for Driving / Idling

374

Alternative Fuels Data Center: Oklahoma Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Oklahoma Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Oklahoma Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Oklahoma Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Oklahoma Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Oklahoma Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Oklahoma Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Oklahoma Laws and Incentives for Driving / Idling

375

Alternative Fuels Data Center: Hawaii Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Hawaii Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Hawaii Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Hawaii Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Hawaii Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Hawaii Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Hawaii Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Hawaii Laws and Incentives for Driving / Idling

376

Alternative Fuels Data Center: Virginia Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Virginia Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Virginia Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Virginia Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Virginia Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Virginia Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Virginia Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Virginia Laws and Incentives for Driving / Idling

377

Alternative Fuels Data Center: Tennessee Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Tennessee Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Tennessee Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Tennessee Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Tennessee Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Tennessee Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Tennessee Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Tennessee Laws and Incentives for Driving / Idling

378

Alternative Fuels Data Center: Oregon Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Oregon Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Oregon Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Oregon Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Oregon Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Oregon Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Oregon Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Oregon Laws and Incentives for Driving / Idling

379

Alternative Fuels Data Center: Minnesota Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Minnesota Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Minnesota Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Minnesota Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Minnesota Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Minnesota Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Minnesota Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Minnesota Laws and Incentives for Driving / Idling

380

Alternative Fuels Data Center: Missouri Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Missouri Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Missouri Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Missouri Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Missouri Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Missouri Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Missouri Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Missouri Laws and Incentives for Driving / Idling

Note: This page contains sample records for the topic "average driving speed" 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

Alternative Fuels Data Center: Utah Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Utah Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Utah Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Utah Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Utah Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Utah Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Utah Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Utah Laws and Incentives for Driving / Idling

382

Alternative Fuels Data Center: Idaho Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Idaho Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Idaho Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Idaho Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Idaho Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Idaho Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Idaho Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Idaho Laws and Incentives for Driving / Idling

383

Alternative Fuels Data Center: Illinois Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Illinois Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Illinois Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Illinois Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Illinois Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Illinois Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Illinois Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Illinois Laws and Incentives for Driving / Idling

384

Alternative Fuels Data Center: Kentucky Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Kentucky Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Kentucky Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Kentucky Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Kentucky Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Kentucky Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Kentucky Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Kentucky Laws and Incentives for Driving / Idling

385

Alternative Fuels Data Center: Louisiana Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Louisiana Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Louisiana Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Louisiana Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Louisiana Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Louisiana Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Louisiana Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Louisiana Laws and Incentives for Driving / Idling

386

Alternative Fuels Data Center: Arizona Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Arizona Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Arizona Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Arizona Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Arizona Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Arizona Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Arizona Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Arizona Laws and Incentives for Driving / Idling

387

Alternative Fuels Data Center: Nevada Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Nevada Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Nevada Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Nevada Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Nevada Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Nevada Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Nevada Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Nevada Laws and Incentives for Driving / Idling

388

Alternative Fuels Data Center: Montana Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Montana Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Montana Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Montana Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Montana Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Montana Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Montana Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Montana Laws and Incentives for Driving / Idling

389

Alternative Fuels Data Center: Colorado Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Colorado Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Colorado Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Colorado Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Colorado Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Colorado Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Colorado Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Colorado Laws and Incentives for Driving / Idling

390

Alternative Fuels Data Center: Kansas Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Kansas Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Kansas Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Kansas Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Kansas Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Kansas Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Kansas Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Kansas Laws and Incentives for Driving / Idling

391

Alternative Fuels Data Center: Wisconsin Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Wisconsin Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Wisconsin Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Wisconsin Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Wisconsin Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Wisconsin Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Wisconsin Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Wisconsin Laws and Incentives for Driving / Idling

392

Drive piston assembly for a valve actuator assembly  

DOE Patents [OSTI]

A drive piston assembly is provided that is operable to selectively open a poppet valve. The drive piston assembly includes a cartridge defining a generally stepped bore. A drive piston is movable within the generally stepped bore and a boost sleeve is coaxially disposed with respect to the drive piston. A main fluid chamber is at least partially defined by the generally stepped bore, drive piston, and boost sleeve. First and second feedback chambers are at least partially defined by the drive piston and each are disposed at opposite ends of the drive piston. At least one of the drive piston and the boost sleeve is sufficiently configured to move within the generally stepped bore in response to fluid pressure within the main fluid chamber to selectively open the poppet valve. A valve actuator assembly and engine are also provided incorporating the disclosed drive piston assembly.

Sun, Zongxuan (Troy, MI)

2010-02-23T23:59:59.000Z

393

Higher-order averaging, formal series and numerical integration II  

E-Print Network [OSTI]

systems of ordinary differential equations with d 1 non- resonant constant frequencies. Formal series frequency and four resonant fast frequencies. Keywords and sentences: Averaging, high-order averaging, quasi Schumann, 35170 Bruz, France. Email: Philippe.Chartier@inria.fr Konputazio Zientziak eta A. A. Saila

Murua, Ander

394

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

East Asia from NREL East Asia from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

395

Do Diurnal Aerosol Changes Affect Daily Average Radiative Forcing?  

SciTech Connect (OSTI)

Strong diurnal variability of aerosol has been observed frequently for many urban/industrial regions. How this variability may alter the direct aerosol radiative forcing (DARF), however, is largely unknown. To quantify changes in the time-averaged DARF, we perform an assessment of 29 days of high temporal resolution ground-based data collected during the Two-Column Aerosol Project (TCAP) on Cape Cod, which is downwind of metropolitan areas. We demonstrate that strong diurnal changes of aerosol loading (about 20% on average) have a negligible impact on the 24-h average DARF, when daily averaged optical properties are used to find this quantity. However, when there is a sparse temporal sampling of aerosol properties, which may preclude the calculation of daily averaged optical properties, large errors (up to 100%) in the computed DARF may occur. We describe a simple way of reducing these errors, which suggests the minimal temporal sampling needed to accurately find the forcing.

Kassianov, Evgueni I.; Barnard, James C.; Pekour, Mikhail S.; Berg, Larry K.; Michalsky, Joseph J.; Lantz, K.; Hodges, G. B.

2013-06-17T23:59:59.000Z

396

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

Africa from NREL Africa from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

397

Averaged dynamics of ultra-relativisitc charged particles beams  

E-Print Network [OSTI]

In this thesis, we consider the suitability of using the charged cold fluid model in the description of ultra-relativistic beams. The method that we have used is the following. Firstly, the necessary notions of kinetic theory and differential geometry of second order differential equations are explained. Then an averaging procedure is applied to a connection associated with the Lorentz force equation. The result of this averaging is an affine connection on the space-time manifold. The corresponding geodesic equation defines the averaged Lorentz force equation. We prove that for ultra-relativistic beams described by narrow distribution functions, the solutions of both equations are similar. This fact justifies the replacement of the Lorentz force equation by the simpler {\\it averaged Lorentz force equation}. After this, for each of these models we associate the corresponding kinetic model, which are based on the Vlasov equation and {\\it averaged Vlasov equation} respectively. The averaged Vlasov equation is simpler than the original Vlasov equation. This fact allows us to prove that the differential operation defining the averaged charged cold fluid equation is controlled by the {\\it diameter of the distribution function}, by powers of the {\\it energy of the beam} and by the time of evolution $t$. We show that the Vlasov equation and the averaged Vlasov equation have similar solutions, when the initial conditions are the same. Finally, as an application of the {\\it averaged Lorentz force equation} we re-derive the beam dynamics formalism used in accelerator physics from the Jacobi equation of the averaged Lorentz force equation.

Ricardo Gallego Torromé

2012-06-19T23:59:59.000Z

398

Field demonstration of optimized variable speed compressor and condenser fan control for commercial refrigeration systems. Final report  

SciTech Connect (OSTI)

The demonstration project discussed in this report consisted of two separate programs intended to examine methods of implementing variable-frequency drives (VFDs) to increase the efficiency of supermarket refrigeration racks. The first program examined the optimum control strategy for minimizing the power consumption of medium-temperature parallel compressor racks driven by VFDs. The second program, aimed at developing the optimum control strategy for variable-speed control of supermarket condenser fans.

NONE

1997-11-01T23:59:59.000Z

399

Coordinating Garbage Collection for Arrays of Solid-state Drives  

SciTech Connect (OSTI)

Although solid-state drives (SSDs) offer significant performance improvements over hard disk drives (HDDs) for a number of workloads, they can exhibit substantial variance in request latency and throughput as a result of garbage collection (GC). When GC conflicts with an I/O stream, the stream can make no forward progress until the GC cycle completes. GC cycles are scheduled by logic internal to the SSD based on several factors such as the pattern, frequency, and volume of write requests. When SSDs are used in a RAID with currently available technology, the lack of coordination of the SSD-local GC cycles amplifies this performance variance. We propose a global garbage collection (GGC) mechanism to improve response times and reduce performance variability for a RAID of SSDs. We include a high-level design of SSD-aware RAID controller and GGC-capable SSD devices and algorithms to coordinate the GGC cycles. We develop reactive and proactive GC coordination algorithms and evaluate their I/O performance and block erase counts for various workloads. Our simulations show that GC coordination by a reactive scheme improves average response time and reduces performance variability for a wide variety of enterprise workloads. For bursty, write-dominated workloads, response time was improved by 69% and performance variability was reduced by 71%. We show that a proactive GC coordination algorithm can further improve the I/O response times by up to 9% and the performance variability by up to 15%. We also observe that it could increase the lifetimes of SSDs with some workloads (e.g. Financial) by reducing the number of block erase counts by up to 79% relative to a reactive algorithm for write-dominant enterprise workloads.

Kim, Youngjae [ORNL] [ORNL; Lee, Junghee [ORNL] [ORNL; Oral, H Sarp [ORNL] [ORNL; Dillow, David A [ORNL] [ORNL; Wang, Feiyi [ORNL] [ORNL; Shipman, Galen M [ORNL] [ORNL

2014-01-01T23:59:59.000Z

400

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

Note: This page contains sample records for the topic "average driving speed" 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

Measurement of average resistance in underwater breathing apparatus  

SciTech Connect (OSTI)

Underwater Breathing Apparatus (UBA) have long been characterized by the mechanical work done on them during simulated breathing. For 20 years, the work of breathing has been divided by tidal volume to yield what is properly considered a volume-averaged pressure. The authors assert that when volume-averaged pressure is divided by a factor proportional to ventilation, the result is a measure of flow resistance averaged over an entire breath. This point is illustrated with both theoretical and actual pressure-volume and pressure-flow curves for a MK 16 closed-circuit UBA.

Clarke, J.R. [Navy Experimental Diving Unit, Panama City, FL (United States)

1996-09-01T23:59:59.000Z

402

Time average vibration fringe analysis using Hilbert transformation  

SciTech Connect (OSTI)

Quantitative phase information from a single interferogram can be obtained using the Hilbert transform (HT). We have applied the HT method for quantitative evaluation of Bessel fringes obtained in time average TV holography. The method requires only one fringe pattern for the extraction of vibration amplitude and reduces the complexity in quantifying the data experienced in the time average reference bias modulation method, which uses multiple fringe frames. The technique is demonstrated for the measurement of out-of-plane vibration amplitude on a small scale specimen using a time average microscopic TV holography system.

Kumar, Upputuri Paul; Mohan, Nandigana Krishna; Kothiyal, Mahendra Prasad

2010-10-20T23:59:59.000Z

403

Argonne's GREET Model - Driving Transportation Solutions  

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

Driving Driving Transportation Solutions Model Argonne's GREET D r i v i n g Tr a n s p o r t a t i o n S o l u t i o n s ARGONNE'S GREET Argonne's GREET model is widely recognized as the "gold standard" for evaluating and comparing the energy and environmental impacts of transportation fuels and advanced vehicles. The Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model is a one-of-a-kind analytical tool that simulates the energy use and emissions output of various vehicle and fuel combinations. Sponsored by the U.S. Department of Energy's (DOE) Office of Energy Efficiency and Renewable Energy, the free software program gives researchers the unique ability to analyze technologies over an entire life cycle - from well to wheels and from raw material mining to vehicle disposal.

404

Speeding Up Zeolite Evaluation for Carbon Capture  

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

Speeding Up Speeding Up Zeolite Evaluation for Carbon Capture Speeding Up Zeolite Evaluation for Carbon Capture Zeolite.png Schematic of an important class of porous materials known as zeolites. The large red structure in the center of this periodic structure is a cavity that might be a good candidate for adsorption of a gas such as carbon dioxide. The seven small red areas at the corners (plus the one hidden by the yellow ball) are not suitable and need to be eliminated from studies that attempt to predict guest-related properties using molecular simulation techniques. A new method developed at NERSC uses software to differentiate between suitable and unsuitable pockets, thereby speeding up discovery of new materials. Why it Matters: Capturing and sequestering waste carbon dioxide (CO2) is a

405

Low Speed Unsteady Aerodynamics Soumitra Banerjee*  

E-Print Network [OSTI]

Low Speed Unsteady Aerodynamics Soumitra Banerjee* Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24061 Unsteady aerodynamics is the study of fluid flow, where the flow field changes with time. The unsteadiness is significant in many aerodynamic applications; few examples

Patil, Mayuresh

406

Wind Speed Forecasting for Power System Operation  

E-Print Network [OSTI]

In order to support large-scale integration of wind power into current electric energy system, accurate wind speed forecasting is essential, because the high variation and limited predictability of wind pose profound challenges to the power system...

Zhu, Xinxin

2013-07-22T23:59:59.000Z

407

Clinton plan to speed cancer drug approval  

Science Journals Connector (OSTI)

Clinton plan to speed cancer drug approval ... Accelerated approval and three other proposals "will affect at least 100 drugs now being studied," he notes, cutting FDA review time for some of these drugs from 12 months to six months. ...

1996-04-08T23:59:59.000Z

408

Assessment of Wind Speed Dependent Prediction Error  

Science Journals Connector (OSTI)

The investigations in this chapter follow the idea that the prediction error quantitatively depends on the meteorological situation that has to be predicted. As a first approach the wind speed as a main indicator...

Dr. Matthias Lange; Dr. Ulrich Focken

2006-01-01T23:59:59.000Z

409

The invariance of the speed of light  

E-Print Network [OSTI]

We show that the conclusion of a recent experiment [arXiv:0912.3934] that claims to have discovered that "the speed of light seems to depend on the motion of the observer" is wrong.

Jerrold Franklin

2010-02-21T23:59:59.000Z

410

Note on Varying Speed of Light Cosmologies  

E-Print Network [OSTI]

The various requirements on a consistent varying speed of light (`VSL') theory are surveyed, giving a short check-list of issues that should be satisfactorily handled by such theories.

George F R Ellis

2007-03-29T23:59:59.000Z

411

One-way speed of light?  

E-Print Network [OSTI]

This is a comment on a paper by Greaves, Rodriguez, and Ruiz-Camacho [Am. J. Phys. 77, 894 (2009)] which reports a measurement of the one-way speed of light.

J. Finkelstein

2009-11-18T23:59:59.000Z

412

Driving Energy Performance with Energy Management Teams  

E-Print Network [OSTI]

Driving Energy Performance with Energy Management Teams Meredith Younghein ENERGY STAR Industrial Communications Mgr. U.S. Environmental Protection Agency Washington, DC ABSTRACT Companies today face an uncertain energy future. Businesses... face escalating energy prices which can erode profits. Concerns over supply reliability, and possible regulation of carbon emissions create risk. For many industries in the U.S., energy costs are equal to the cost of raw materials or even employee...

Younghein, M.; Tunnessen, W.

2006-01-01T23:59:59.000Z

413

Speed selection for coupled wave equations  

E-Print Network [OSTI]

We discuss models for coupled wave equations describing interacting fields, focusing on the speed of travelling wave solutions. In particular, we propose a general mechanism for selecting and tuning the speed of the corresponding (multi-component) travelling wave solutions under certain physical conditions. A number of physical models (molecular chains, coupled Josephson junctions, propagation of kinks in chains of adsorbed atoms and domain walls) are considered as examples.

Mariano Cadoni; Giuseppe Gaeta

2015-01-13T23:59:59.000Z

414

Alternative Fuels Data Center: California Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: California Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: California Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: California Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: California Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: California Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: California Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

415

Alternative Fuels Data Center: Pennsylvania Laws and Incentives for Driving  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Pennsylvania Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Pennsylvania Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Pennsylvania Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Pennsylvania Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Pennsylvania Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Pennsylvania Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

416

Alternative Fuels Data Center: Mississippi Laws and Incentives for Driving  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Mississippi Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Mississippi Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Mississippi Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Mississippi Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Mississippi Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Mississippi Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

417

An Optimization Model for Eco-Driving at Signalized Intersection  

E-Print Network [OSTI]

This research develops an optimization model for eco-driving at signalized intersection. In urban areas, signalized intersections are the “hot spots” of air emissions and have significant negative environmental and health impacts. Eco-driving is a...

Chen, Zhi

2013-07-15T23:59:59.000Z

418

DOE Releases U.S. DRIVE Technical Accomplishments Report | Department...  

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

Enhanced materials and designs that can reduce the cost of on-board hydrogen storage tanks by 15% U.S. DRIVE (Driving Research and Innovation for Vehicle efficiency and Energy...

419

Do You Drive a Hybrid Electric Vehicle? | Department of Energy  

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

Do You Drive a Hybrid Electric Vehicle? Do You Drive a Hybrid Electric Vehicle? July 9, 2009 - 1:34am Addthis In Tuesday's entry, Francis X. Vogel from the Wisconsin Clean Cities...

420

Columbia Power Technologies, Inc. Deploys its Direct Drive Wave...  

Energy Savers [EERE]

Columbia Power Technologies, Inc. Deploys its Direct Drive Wave Energy Buoy Columbia Power Technologies, Inc. Deploys its Direct Drive Wave Energy Buoy April 9, 2013 - 12:00am...

Note: This page contains sample records for the topic "average driving speed" 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

Optimization of Driving Styles for Fuel Economy Improvement  

SciTech Connect (OSTI)

Modern vehicles have sophisticated electronic control units, particularly to control engine operation with respect to a balance between fuel economy, emissions, and power. These control units are designed for specific driving conditions and testing. However, each individual driving style is different and rarely meets those driving conditions. In the research reported here we investigate those driving style factors that have a major impact on fuel economy. An optimization framework is proposed with the aim of optimizing driving styles with respect to these driving factors. A set of polynomial metamodels are constructed to reflect the responses produced by changes of the driving factors. Then we compare the optimized driving styles to the original ones and evaluate the efficiency and effectiveness of the optimization formulation.

Malikopoulos, Andreas [ORNL] [ORNL; Aguilar, Juan P. [Georgia Institute of Technology] [Georgia Institute of Technology

2012-01-01T23:59:59.000Z

422

Fact #759: December 24, 2012 Rural vs. Urban Driving Differences  

Broader source: Energy.gov [DOE]

According to the National Household Travel Survey, those living in rural areas drive ten more miles in a day than those who live in cities. People living in the suburbs drive only about three to...

423

Transport Research Arena 2014, Paris Driving assistances for senior drivers  

E-Print Network [OSTI]

and to analyse actual driving behaviours and specific difficulties of older drivers in ecological driving conditions, using an instrumented vehicle on open roads. The aim is then to ergonomically specify and design

Paris-Sud XI, Université de

424

Alternative Fuels Data Center: Connecticut Laws and Incentives for Driving  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Connecticut Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Connecticut Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Connecticut Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Connecticut Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Connecticut Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Connecticut Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

425

Alternative Fuels Data Center: Washington Laws and Incentives for Driving /  

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

Driving / Idling to someone by E-mail Driving / Idling to someone by E-mail Share Alternative Fuels Data Center: Washington Laws and Incentives for Driving / Idling on Facebook Tweet about Alternative Fuels Data Center: Washington Laws and Incentives for Driving / Idling on Twitter Bookmark Alternative Fuels Data Center: Washington Laws and Incentives for Driving / Idling on Google Bookmark Alternative Fuels Data Center: Washington Laws and Incentives for Driving / Idling on Delicious Rank Alternative Fuels Data Center: Washington Laws and Incentives for Driving / Idling on Digg Find More places to share Alternative Fuels Data Center: Washington Laws and Incentives for Driving / Idling on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

426

Indianapolis Offers a Lesson on Driving Demand | Department of...  

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

Indianapolis Offers a Lesson on Driving Demand Indianapolis Offers a Lesson on Driving Demand The flier for EcoHouse, with the headline 'Save energy, save money, improve your home'...

427

GenDrive Limited | Open Energy Information  

Open Energy Info (EERE)

GenDrive Limited GenDrive Limited Jump to: navigation, search Name GenDrive Limited Place Cambridge, United Kingdom Zip CB23 3GY Sector Renewable Energy, Solar, Wind energy Product Developing a range of grid-connected inverters, 'Plug & Play', for renewable energy (mostly solar and wind) systems. These are intended to improve ease of installation. Coordinates 43.003745°, -89.017499° 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":43.003745,"lon":-89.017499,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

428

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

429

Energetic Drives LLC | Open Energy Information  

Open Energy Info (EERE)

Energetic Drives LLC Energetic Drives LLC Jump to: navigation, search Name Energetic Drives LLC Place Gresham, Oregon Zip 97030 Sector Efficiency, Wind energy Product Oregon-based engineering firm that conducts industrial efficiency improvements, as well as repair and maintenance work for grid-tie inverters and wind turbines ranging from 10kW to 1.2MW. Coordinates 44.84866°, -88.786959° 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":44.84866,"lon":-88.786959,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

430

annual average heating degree days | OpenEI  

Open Energy Info (EERE)

average heating degree days average heating degree days Dataset Summary Description (Abstract): Heating Degree Days below 18° C (degree days)The monthly accumulation of degrees when the daily mean temperature is below 18° C.NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly Average & Annual Sum (July 1983 - June 2005)Parameter: Heating Degree Days Below 18 degrees C (degree days)Internet: http://eosweb.larc.nasa.gov/sse/ Source U.S. National Aeronautics and Space Administration (NASA), Surface meteorology and Solar Energy (SSE) Date Released March 31st, 2009 (5 years ago) Date Updated April 01st, 2009 (5 years ago) Keywords annual average heating degree days climate GIS NASA SWERA UNEP Data application/zip icon Download Shapefile (zip, 2.7 MiB)

431

Averaging Spacetime: Where do we go from here?  

E-Print Network [OSTI]

The construction of an averaged theory of gravity based on Einstein's General Relativity is very difficult due to the non-linear nature of the gravitational field equations. This problem is further exacerbated by the difficulty in defining a mathematically precise covariant averaging procedure for tensor fields over differentiable manifolds. Together, these two ideas have been called the averaging problem for General Relativity. In the first part of the talk, an attempt to review some the various approaches to this problem will be given, highlighting strengths, weaknesses, and commonalities between them. In the second part of the talk, an argument will be made, that if one wishes to develop a well-defined averaging procedure, one may choose to parallel transport along geodesics with respect to the Levi-Cevita connection or, use the Weitzenb\\"ock connection and ensure the transportation is independent of path. The talk concludes with some open questions to generate further discussion.

R. J. van den Hoogen

2010-04-15T23:59:59.000Z

432

U.S. average gasoline price up slightly  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

average retail price for regular gasoline rose slightly to 3.65 a gallon on Monday. That's up a tenth of a penny from a week ago, based on the weekly price survey by the U.S....

433

Abstract Interpretation for Worst and Average Case Analysis  

E-Print Network [OSTI]

energy usage whilst bounding the average number of requests waiting to be served. PRISM is used phase extracts a control flow graph ­ for some classes of language this may already involve an abstract

Di Pierro, Alessandra

434

Weighted Coherence: A More Effective Measure Than Average Coherence  

Science Journals Connector (OSTI)

In this study, we evaluated the effectiveness of the statistic, “Weighted Coherence” in relation to the average or mean coherence in a particular frequency band after cross- ... using cross-spectral analysis is r...

Vikram Kumar Yeragani; Arindam Barua…

2003-12-01T23:59:59.000Z

435

Table 17. Recoverable Coal Reserves and Average Recovery Percentage...  

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

Recoverable Coal Reserves and Average Recovery Percentage at Producing U.S. Mines by Mine Production Range and Mine Type, 2012 (million short tons) U.S. Energy Information...

436

Wind speed vertical distribution at Mt. Graham  

E-Print Network [OSTI]

The characterization of the wind speed vertical distribution V(h) is fundamental for an astronomical site for many different reasons: (1) the wind speed shear contributes to trigger optical turbulence in the whole troposphere, (2) a few of the astroclimatic parameters such as the wavefront coherence time (tau_0) depends directly on V(h), (3) the equivalent velocity V_0, controlling the frequency at which the adaptive optics systems have to run to work properly, depends on the vertical distribution of the wind speed and optical turbulence. Also, a too strong wind speed near the ground can introduce vibrations in the telescope structures. The wind speed at a precise pressure (200 hPa) has frequently been used to retrieve indications concerning the tau_0 and the frequency limits imposed to all instrumentation based on adaptive optics systems, but more recently it has been proved that V_200 (wind speed at 200 hPa) alone is not sufficient to provide exhaustive elements concerning this topic and that the vertical d...

Hagelin, S; Lascaux, F

2010-01-01T23:59:59.000Z

437

Table A44. Average Prices of Purchased Electricity and Steam  

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

4. Average Prices of Purchased Electricity and Steam" 4. Average Prices of Purchased Electricity and Steam" " by Type of Supplier, Census Region, Census Division, and" " Economic Characteristics of the Establishment, 1994" " (Estimates in Dollars per Physical Units)" ," Electricity",," Steam" ," (kWh)",," (million Btu)" ,,,,,"RSE" ,"Utility","Nonutility","Utility","Nonutility","Row" "Economic Characteristics(a)","Supplier(b)","Supplier(c)","Supplier(b)","Supplier(c)","Factors"

438

Flavor Physics Data from the Heavy Flavor Averaging Group (HFAG)  

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

The Heavy Flavor Averaging Group (HFAG) was established at the May 2002 Flavor Physics and CP Violation Conference in Philadelphia, and continues the LEP Heavy Flavor Steering Group's tradition of providing regular updates to the world averages of heavy flavor quantities. Data are provided by six subgroups that each focus on a different set of heavy flavor measurements: B lifetimes and oscillation parameters, Semi-leptonic B decays, Rare B decays, Unitarity triangle parameters, B decays to charm final states, and Charm Physics.

439

A Multivariate Analysis of Freeway Speed and Headway Data  

E-Print Network [OSTI]

key process is the generation of entry vehicle speeds and vehicle arrival times. It is helpful to find desirable mathematical distributions to model individual speed and headway values, because the individual vehicle speed and arrival time...

Zou, Yajie

2013-11-11T23:59:59.000Z

440

A preliminary evaluation of a speed threshold incident detection algorithm  

E-Print Network [OSTI]

detection algorithm. San Antonio's new traffic management center, TransGuide, uses a new speed based algorithm, The TXDOT (Texas Department of Transportation) Speed algorithm. This research compares the TXDOT Speed algorithm with California algorithm #8...

Kolb, Stephanie Lang

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "average driving speed" 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

Einstein's special relativity beyond the speed of light  

Science Journals Connector (OSTI)

...special relativity beyond the speed of light James M. Hill Barry J. Cox...relative velocities greater than the speed of light, and that are complementary to...relative velocities less than the speed of light. The new transformations arise...

2012-01-01T23:59:59.000Z

442

FY 2014 Annual Progress Report- Electric Drive Technologies Program  

Broader source: Energy.gov [DOE]

FY 2014 Annual Progress Report for the Electric Drive Technologies Program of the Vehicle Technologies Office, DOE/EE-1163

443

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

South America from NREL South America from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the model. The local cloud cover can vary significantly even within a single grid cell as a result of terrain effects and other microclimate influences. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

444

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

Central America and the Carribean from NREL Central America and the Carribean from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the model. The local cloud cover can vary significantly even within a single grid cell as a result of terrain effects and other microclimate influences. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

445

U.S. Refiner Sales to End Users (Average) Prices  

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

Sales Type: Sales to End Users, Average Through Retail Outlets Sales for Resale, Average DTW Rack Bulk Sales Type: Sales to End Users, Average Through Retail Outlets Sales for Resale, Average DTW Rack Bulk Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Formulation/ Grade Sales Type Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 View History Conventional, Average 3.030 3.137 3.122 3.063 3.042 2.972 1994-2013 Conventional Regular 3.005 3.116 3.102 3.040 3.017 2.948 1994-2013 Conventional Midgrade 3.167 3.256 3.239 3.200 3.193 3.121 1994-2013 Conventional Premium 3.269 3.354 3.327 3.291 3.274 3.203 1994-2013 Oxygenated, Average - - - - - - 1994-2013 Oxygenated Regular - - - - - - 1994-2013 Oxygenated Midgrade - - - - - - 1994-2013

446

Wind speed and power density analysis based on Weibull and Rayleigh distributions (a case study: Firouzkooh county of Iran)  

Science Journals Connector (OSTI)

Abstract The present study aimed to analyze the wind speed data of Firouzkooh region. For this purpose, the wind speed data for a 3-h period measuring over a 10-year period (2001–2010) were analyzed to calculate and estimate the wind power generation potential. Similar trends of the wind speeds were seen in different years where the highest and the lowest mean wind speeds belonged to May 2010 and June 2002, respectively. The diurnal wind speed analysis demonstrated that the fastest winds blew from 6 am to 3 pm. Weibull and Rayleigh distribution functions were applied to find out the best fitting tool to the wind speed data. Results showed that Weibull and Rayleigh distribution functions can fit the actual values of wind speed well with almost the same coefficient of determination value (R2) of 0.97. The average values of wind power based on mean and root mean cube speed approaches were 203 and 248 W m?2 year?1, respectively indicating that Firouzkooh region stands in class 4 (which is a suitable area for wind turbine establishment). Finally, wind rose diagram revealed that the prevailing wind direction falls in the sector between 180° and 270° clockwise from North.

S.H. Pishgar-Komleh; A. Keyhani; P. Sefeedpari

2015-01-01T23:59:59.000Z

447

Analysis of Variable Speed Optimization Operation Effect of Different?type Pumps in Jiangdu Pumping Station  

Science Journals Connector (OSTI)

The following paper puts forward 45 combination schemes of different?type pumps in different daily?average heads and operation loads in Jiangdu Pumping Station. Based on every scheme the minimum electricity consumption cost selected as the objective function this paper gives the results of variable speed optimal operations with dynamic planning methods in both considering time?sharing electricity prices and not simultaneously it gives the results of fixed speed conventional operation considering time?sharing electricity prices. Then according to the unit energy consumption cost the paper gives comparison analysis of the effect of different?type pumps in variable speed optimization operation the conclusions can offer decision?making bases for optimization research of pumping stations considering time?sharing electricity prices and tide levels of Yangtze River and offer references for transformation and economical operation of large and medium?size pumping stations.

Qiu Jinxian; Cheng Jilin; Luo Jinyao; Zhang Rentian; Zhang Lihua; Gong Yi

2010-01-01T23:59:59.000Z

448

A new hybrid model optimized by an intelligent optimization algorithm for wind speed forecasting  

Science Journals Connector (OSTI)

Abstract Forecasting the wind speed is indispensable in wind-related engineering studies and is important in the management of wind farms. As a technique essential for the future of clean energy systems, reducing the forecasting errors related to wind speed has always been an important research subject. In this paper, an optimized hybrid method based on the Autoregressive Integrated Moving Average (ARIMA) and Kalman filter is proposed to forecast the daily mean wind speed in western China. This approach employs Particle Swarm Optimization (PSO) as an intelligent optimization algorithm to optimize the parameters of the ARIMA model, which develops a hybrid model that is best adapted to the data set, increasing the fitting accuracy and avoiding over-fitting. The proposed method is subsequently examined on the wind farms of western China, where the proposed hybrid model is shown to perform effectively and steadily.

Zhongyue Su; Jianzhou Wang; Haiyan Lu; Ge Zhao

2014-01-01T23:59:59.000Z

449

LAPP-TECH-2013-01 DRIVE BEAM STRIPLINE BPM  

E-Print Network [OSTI]

1 LAPP-TECH-2013-01 DRIVE BEAM STRIPLINE BPM ELECTRONICS AND ACQUISITION. Jean-Marc Nappa, Jean- around acquisition and components tests for drive beam stripline BPM read-out. The choice of the presented stripline BPM as the drive beam position monitor is not definitive. The aim of this study

Paris-Sud XI, Université de

450

Drive torque actuation in active surge control of centrifugal compressors  

E-Print Network [OSTI]

an approximation of a real compression system. 1 #12;CompressorShaft Electric drive Active surge control law Shaft (1999b) or Willems and de Jager (1999). In this study, which is on compressors with electrical drives, we propose to use the electrical drive as a means of active surge control, as depicted in Figure 1.

Gravdahl, Jan Tommy

451

Social drive and the evolution of primate hearing  

Science Journals Connector (OSTI)

...coevolved. (d) Social drive Another explanation...strength of this social drive model is twofold...increased 60 dB high-frequency limits. Increased...distances amid more variable habitats [81...often have a high-frequency acoustic structure...explore this social drive hypothesis, we...

2012-01-01T23:59:59.000Z

452

Is the Lorentz limiting speed equal to the Speed of Light? Photons vs Neutrino tests  

E-Print Network [OSTI]

We discuss the possibility that the limiting speed (c_l) appearing in Lorentz equations might be different i.e., slightly larger than the observed speed of light (c_n). We show that such a possibility can be tested by state-of-the-art Michelson-Morley experiments, but also by careful measurement of neutrino speeds. It would indeed suffice to show that c_n light.

Jean-Marie Frere; Simon Mollet; Michel H. G. Tytgat

2012-02-13T23:59:59.000Z

453

Smaller Footprint Drilling System for Deep and Hard Rock Environments; Feasibility of Ultra-High-Speed Diamond Drilling  

SciTech Connect (OSTI)

The two phase program addresses long-term developments in deep well and hard rock drilling. TerraTek believes that significant improvements in drilling deep hard rock will be obtained by applying ultra-high rotational speeds (greater than 10,000 rpm). The work includes a feasibility of concept research effort aimed at development that will ultimately result in the ability to reliably drill 'faster and deeper' possibly with smaller, more mobile rigs. The principle focus is on demonstration testing of diamond bits rotating at speeds in excess of 10,000 rpm to achieve high rate of penetration (ROP) rock cutting with substantially lower inputs of energy and loads. The significance of the 'ultra-high rotary speed drilling system' is the ability to drill into rock at very low weights on bit and possibly lower energy levels. The drilling and coring industry today does not practice this technology. The highest rotary speed systems in oil field and mining drilling and coring today run less than 10,000 rpm - usually well below 5,000 rpm. This document provides the progress through two phases of the program entitled 'Smaller Footprint Drilling System for Deep and Hard Rock Environments: Feasibility of Ultra-High-Speed Diamond Drilling' for the period starting 30 June 2003 and concluding 31 March 2009. The accomplishments of Phases 1 and 2 are summarized as follows: (1) TerraTek reviewed applicable literature and documentation and convened a project kick-off meeting with Industry Advisors in attendance (see Black and Judzis); (2) TerraTek designed and planned Phase I bench scale experiments (See Black and Judzis). Improvements were made to the loading mechanism and the rotational speed monitoring instrumentation. New drill bit designs were developed to provided a more consistent product with consistent performance. A test matrix for the final core bit testing program was completed; (3) TerraTek concluded small-scale cutting performance tests; (4) Analysis of Phase 1 data indicated that there is decreased specific energy as the rotational speed increases; (5) Technology transfer, as part of Phase 1, was accomplished with technical presentations to the industry (see Judzis, Boucher, McCammon, and Black); (6) TerraTek prepared a design concept for the high speed drilling test stand, which was planned around the proposed high speed mud motor concept. Alternative drives for the test stand were explored; a high speed hydraulic motor concept was finally used; (7) The high speed system was modified to accommodate larger drill bits than originally planned; (8) Prototype mud turbine motors and the high speed test stand were used to drive the drill bits at high speed; (9) Three different rock types were used during the testing: Sierra White granite, Crab Orchard sandstone, and Colton sandstone. The drill bits used included diamond impregnated bits, a polycrystalline diamond compact (PDC) bit, a thermally stable PDC (TSP) bit, and a hybrid TSP and natural diamond bit; and (10) The drill bits were run at rotary speeds up to 5500 rpm and weight on bit (WOB) to 8000 lbf. During Phase 2, the ROP as measured in depth of cut per bit revolution generally increased with increased WOB. The performance was mixed with increased rotary speed, with the depth cut with the impregnated drill bit generally increasing and the TSP and hybrid TSP drill bits generally decreasing. The ROP in ft/hr generally increased with all bits with increased WOB and rotary speed. The mechanical specific energy generally improved (decreased) with increased WOB and was mixed with increased rotary speed.

TerraTek, A Schlumberger Company

2008-12-31T23:59:59.000Z

454

A study of the effect of posted speed limits on traffic speeds  

E-Print Network [OSTI]

. 60 C 50 JJ 40 Be fore After tti 0 U Ol DO 4) ts U U C 4) C U 4) I ) 4) 0 40 30 0 20 10 4 t 13. 0 14. 0 Ni 1 epos ts - S. H. 36 Location D-12 - West Columbia CI Be fore IED After 15. 0 FIGURE V. 11, LUSTRAT10N OF A... Distribution Curves for No Change in the Original 60-Nile-Par-Hour Speed Limit in District 12. Each Curve Represents Data Prom 7 Spot Speed Studies in 4 Locations. 37 12. 13. Cumulative Speed Distribution Curves for a Change in Speed Limit From 60 to 55...

Rowan, Neilon Joyce

2012-06-07T23:59:59.000Z

455

Is the Lorentz limiting speed equal to the speed of light? Photons vs neutrino tests  

Science Journals Connector (OSTI)

We discuss the possibility that the “limiting speed” c limit (c l ...) appearing in Lorentz equations might be different (i.e. slightly larger) t...

Jean-Marie Frère; Simon Mollet; Michel H. G. Tytgat

2012-11-01T23:59:59.000Z

456

The Brazil Technology Center Speeds the Pace of Innovation |...  

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

Brazil Technology Center Speeds the Pace of Innovation The Brazil Technology Center Speeds the Pace of Innovation Bruno Betoni Parodi 2012.09.06 (Please find Portuguese translation...

457

Reduction of Emissions from a High Speed Ferry | Department of...  

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

Emissions from a High Speed Ferry Reduction of Emissions from a High Speed Ferry 2003 DEER Conference Presentation: West Virginia University 2003deerthompson.pdf More Documents &...

458

Energy Department Announces $10 Million to Speed Enhanced Geothermal...  

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

Energy Department Announces 10 Million to Speed Enhanced Geothermal Systems into the Market Energy Department Announces 10 Million to Speed Enhanced Geothermal Systems into the...

459

Advanced Variable Speed Air-Source Integrated Heat Pump 2013...  

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

Advanced Variable Speed Air-Source Integrated Heat Pump 2013 Peer Review Advanced Variable Speed Air-Source Integrated Heat Pump 2013 Peer Review Emerging Technologies Project for...

460

Pitch and torque control of variable speed wind turbines.  

E-Print Network [OSTI]

??In this thesis the torque, speed and pitch angle control of variable speed wind turbine is investigated. In particular, it concentrates on the extraction of… (more)

Kulka, Arkadiusz

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "average driving speed" 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

International Assessment of Electric-Drive Vehicles: Policies, Markets, and Technologies  

E-Print Network [OSTI]

Assessmentof Electric-Drive Vehicles: Policies, Markets, andInternational Assessment Electric-Drive Vehicles: Policies,International Assessment Electric-Drive Vehicles Policies,

Sperling, Daniel; Lipman, Timothy

2003-01-01T23:59:59.000Z

462

Economic Assessment of Electric-Drive Vehicle Operation in California and the United States  

E-Print Network [OSTI]

ECONOMIC ASSESSMENT OF ELECTRIC-DRIVE VEHICLE OPERATION INECONOMIC ASSESSMENT OF ELECTRIC-DRIVE VEHICLE OPERATION INconsumers to switch to electric-drive vehicles, including a

Lidicker, Jeffrey R.; Lipman, Timothy E.; Shaheen, Susan A.

2010-01-01T23:59:59.000Z

463

Shift mechanism for change-speed gearing in power transmission  

SciTech Connect (OSTI)

This patent describes a shift mechanism for a change-speed gearing in a power transmission, comprising: an actuator mounted on a support structure; a shift rod axially slidably carried on the support structure and operatively connected at a first end for reciprocating movement; means for selectively establishing a drive power gear train in response to the reciprocating movement where the support structure is formed at one side with a cylindrical portion is formed axially to contain a second end of the shift rod; a plug detachably threaded into the cylindrical portion of the support structure so as to close the axial bore, a coil spring disposed within the axial bore of the cylindrical portion and arranged in surrounding relationship with the shift rod in such a manner as to permit unbiased reciprocating movement of the shift rod within the coil spring; and a retainer interposed between the coil spring and the plug in such a manner that the coil spring is compressed by engagement at a first end. The inner end of the axial bore and second end are with the retainer; further arranged to be engaged with the second end of the shift rod when the plug is removed and fastened again in place. The coil spring is arranged to retain the shift rod in a rearward position when interposed between the retainer and the plug.

Ida, S.; Shimizu, K.; Hotta, J.

1987-06-30T23:59:59.000Z

464

High speed flow cytometer droplet formation system and method  

DOE Patents [OSTI]

A droplet forming flow cytometer system allows high speed processing without the need for high oscillator drive powers through the inclusion of an oscillator or piezoelectric crystal such as within the nozzle volume or otherwise unidirectionally coupled to the sheath fluid. The nozzle container continuously converges so as to amplify unidirectional oscillations which are transmitted as pressure waves through the nozzle volume to the nozzle exit so as to form droplets from the fluid jet. The oscillator is directionally isolated so as to avoid moving the entire nozzle container so as to create only pressure waves within the sheath fluid. A variation in substance concentration is achieved through a movable substance introduction port which is positioned within a convergence zone to vary the relative concentration of substance to sheath fluid while still maintaining optimal laminar flow conditions. This variation may be automatically controlled through a sensor and controller configuration. A replaceable tip design is also provided whereby the ceramic nozzle tip is positioned within an edge insert in the nozzle body so as to smoothly transition from nozzle body to nozzle tip. The nozzle tip is sealed against its outer surface to the nozzle body so it may be removable for cleaning or replacement.

Van den Engh, Ger (Seattle, WA)

2000-01-01T23:59:59.000Z

465

PWM drive filter inductor influence on transient immunity  

SciTech Connect (OSTI)

Surges of less than 200% magnitude caused by utility capacitor switching can disrupt PWM drives. In this paper, the disruption mechanism is investigated by SPICE simulation of the drive and the results are compared to field tests. An over current surge in the rectifier/filter section and dc over voltage are the most common disruption mechanisms. The drive dc filter inductor is the most important factor in capacitor transient sensitivity of the drive. A drive without the inductor or one in which the inductor is saturated by the transient is vulnerable to disruption.

Wagner, V.E. [Detroit Edison, MI (United States); Strangas, E. [Michigan State Univ., East Lansing, MI (United States). Dept. of Electrical Engineering

1995-12-31T23:59:59.000Z

466

Alternative Fuels Data Center: Low-Speed Vehicle Definition  

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

Low-Speed Vehicle Low-Speed Vehicle Definition to someone by E-mail Share Alternative Fuels Data Center: Low-Speed Vehicle Definition on Facebook Tweet about Alternative Fuels Data Center: Low-Speed Vehicle Definition on Twitter Bookmark Alternative Fuels Data Center: Low-Speed Vehicle Definition on Google Bookmark Alternative Fuels Data Center: Low-Speed Vehicle Definition on Delicious Rank Alternative Fuels Data Center: Low-Speed Vehicle Definition on Digg Find More places to share Alternative Fuels Data Center: Low-Speed Vehicle Definition on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Low-Speed Vehicle Definition A low-speed vehicle is defined as a limited use automobile or truck that has a maximum speed greater than 20 miles per hour (mph) but not more than

467

Modelling and control of a variable speed wind turbine driving doubly fed induction generator using three-level PWM converter  

Science Journals Connector (OSTI)

The aim of this researcher is to develop a complete wind central model driven doubly fed induction generator (DFIG) which feeds an AC power grid. For that, two-pulse width modulated (PWM) voltage converters are connected back to back between the rotor terminals of DFIG and the utility grid via a common DC link, in there, our contribution will appear in the utilisation of three levels voltage inverters in order to ameliorate the energy quality. The simulation was carried out on a 2 MW wind-turbine driven DFIG system and the developed unified model validity and the proposed control strategies feasibility are all confirmed by the simulated results.

Fairouz Kendouli; Khoudir Abed; Khalil Nabti; Hocine Benalla

2012-01-01T23:59:59.000Z

468

NREL: Fleet Test and Evaluation - Hybrid Electric Drive Systems  

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

Hybrid Electric Drive Systems Hybrid Electric Drive Systems The Fleet Test and Evaluation Team conducts performance evaluations of hybrid electric drive systems in fleets of delivery vehicles and transit buses. Hybrid electric drive systems combine a primary power source, an energy storage system, and an electric motor to achieve a combination of emissions, fuel economy, and range benefits unattainable with any of these technologies alone. Hybrid electric drive systems use less petroleum-based fuel and capture energy created during breaking and idling. This collected energy is used to propel the vehicle during normal drive cycles. The batteries supply additional power for acceleration and hill climbing. Learn more about the team's hybrid electric drive system evaluations: Delivery Vehicles

469

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

470

Better Buildings Neighborhood Program: Energy Upgrade California Drives  

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

Energy Upgrade Energy Upgrade California Drives Demand From Behind the Wheel to someone by E-mail Share Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on Facebook Tweet about Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on Twitter Bookmark Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on Google Bookmark Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on Delicious Rank Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on Digg Find More places to share Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on

471

Empowering Operators to Drive Sustainable Savings  

E-Print Network [OSTI]

Ruiz carlos.ruiz@soteicavisualmesa.com Soteica Visual MESA LLC 15995 N. Barker?s Landing Ste 320, Houston, TX 77079 http://www.soteica.com Antonio Garc?a Nogales CEPSA QU?MICA S.A. Pol?gono Industrial Guadarranque ? San Roque (C?diz) - Espa... Soteica?s Visual MESA solution to optimize their utility optimization. Visual MESA is an online energy management system that enables operators to reduce costs (see references 1 to 6 below), which has been used to drive sustained operational energy...

Reitmeier, T.

2013-01-01T23:59:59.000Z

472

"2012 Average Monthly Bill- Residential"  

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

Residential" Residential" "(Data from forms EIA-861- schedules 4A-D, EIA-861S and EIA-861U)" "State","Number of Customers","Average Monthly Consumption (kWh)","Average Price (cents/kWh)","Average Monthly Bill (Dollar and cents)" "New England",6203726,634.13095,15.713593,99.644755 "Connecticut",1454651,730.85302,17.343298,126.75402 "Maine",703770,530.56349,14.658797,77.774225 "Massachusetts",2699141,627.15845,14.912724,93.52641 "New Hampshire",601697,614.81776,16.070168,98.802249 "Rhode Island",435448,597.34783,14.404061,86.042344 "Vermont",309019,565.03618,17.006075,96.090478 "Middle Atlantic",15727423,700.63673,15.272654,107.00582

473

"2012 Average Monthly Bill- Industrial"  

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

Industrial" Industrial" "(Data from forms EIA-861- schedules 4A-D, EIA-861S and EIA-861U)" "State","Number of Customers","Average Monthly Consumption (kWh)","Average Price (cents/kWh)","Average Monthly Bill (Dollar and cents)" "New England",34164,67854.037,11.83487,8030.4373 "Connecticut",4647,63947.063,12.672933,8103.9685 "Maine",2780,90741.457,7.9819499,7242.9376 "Massachusetts",21145,66710.826,12.566635,8383.3057 "New Hampshire",3444,47247.217,11.83228,5590.423 "Rhode Island",1927,39935.911,10.676724,4263.8471 "Vermont",221,536044.12,9.9796777,53495.475 "Middle Atlantic",45836,126368.14,7.4903534,9465.42 "New Jersey",12729,50817.89,10.516509,5344.2677

474

Time-average TV holography for vibration fringe analysis  

SciTech Connect (OSTI)

Time-average TV holography is widely used method for vibration measurement. The method generates speckle correlation time-averaged J0 fringes that can be used for full-field qualitative visualization of mode shapes at resonant frequencies of an object under harmonic excitation. In order to map the amplitudes of vibration, quantitative evaluation of the time-averaged fringe pattern is desired. A quantitative evaluation procedure based on the phase-shifting technique used in two beam interferometry has also been adopted for this application with some modification. The existing procedure requires a large number of frames to be recorded for implementation. We propose a procedure that will reduce the number of frames required for the analysis. The TV holographic system used and the experimental results obtained with it on an edge-clamped, sinusoidally excited square aluminium plate sample are discussed.

Kumar, Upputuri Paul; Kalyani, Yanam; Mohan, Nandigana Krishna; Kothiyal, Mahendra Prasad

2009-06-01T23:59:59.000Z

475

Globally Averaged Atmospheric CFC-11 Concentrations: Monthly and Annual  

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

Chlorofluorocarbons » Chlorofluorocarbons » Atmospheric CFC-11 Concentrations Globally Averaged Atmospheric CFC-11 Concentrations: Monthly and Annual Data for the Period 1975-1992 DOI: 10.3334/CDIAC/atg.db1010 data Data (DB1010) Investigator M. A. K. Khalil and R. A. Rasmussen Description This data set presents globally averaged atmospheric concentrations of chlorofluorocarbon 11, known also as CFC-11 or F-11 (chemical name: trichlorofluoromethane; formula: CCl3F). The monthly global average data are derived from flask air samples collected at eight sites in six locations over the period August 1980-July 1992. The sites are Barrow (Alaska), Cape Meares (Oregon), Cape Kumukahi and Mauna Loa (Hawaii), Cape Matatula (American Samoa), Cape Grim (Tasmania), Palmer Station, and the

476

Comparison of Average Transport and Dispersion Among a Gaussian, a  

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

Comparison of Average Transport and Dispersion Among a Gaussian, a Comparison of Average Transport and Dispersion Among a Gaussian, a Two-Dimensional, and a Three-Dimensional Model Comparison of Average Transport and Dispersion Among a Gaussian, a Two-Dimensional, and a Three-Dimensional Model The Nuclear Regulatory Commission's (NRC's) code for predicting off-site consequences, MACCS2 (Chanin, et al. 1998) (MELCOR Accident Consequence Code System, Version 2), uses a simplified model for atmospheric transport and d ispersion (ATD), that is, a straight-line Gaussian model. The MACCS2 calculations are used by the NRC for planning purposes, for cost-benefit analyses, and in level-3 probabilistic risk analyses (PRAs). The MACCS2 ATD model has been criticized as being overly simplistic, even for its purposes. The justification for its use has been

477

Clinical recommendations for the use of D-speed film, E-speed film, and xeroradiography  

SciTech Connect (OSTI)

This article assesses the diagnostic utility, radiation dose, equipment reliability, patient acceptance, and costs associated with D-speed film, E-speed film, and dental xeroradiographs for intraoral imaging. From the analysis and review of laboratory studies and clinical trials, conclusions and recommendations are offered. 40 references.

Gratt, B.M.; White, S.C.; Halse, A.

1988-10-01T23:59:59.000Z

478

Universal One-Way Light Speed from a Universal Light Speed Over Closed Paths  

Science Journals Connector (OSTI)

This paper gives two complete and elementary proofs that if the speed of light over closed paths has a universal value c..., then it is possible to synchronize clocks in such a way that the one-way speed of light

Ettore Minguzzi; Alan Macdonald

2003-12-01T23:59:59.000Z

479

High average power scaleable thin-disk laser  

DOE Patents [OSTI]

Using a thin disk laser gain element with an undoped cap layer enables the scaling of lasers to extremely high average output power values. Ordinarily, the power scaling of such thin disk lasers is limited by the deleterious effects of amplified spontaneous emission. By using an undoped cap layer diffusion bonded to the thin disk, the onset of amplified spontaneous emission does not occur as readily as if no cap layer is used, and much larger transverse thin disks can be effectively used as laser gain elements. This invention can be used as a high average power laser for material processing applications as well as for weapon and air defense applications.

Beach, Raymond J. (Livermore, CA); Honea, Eric C. (Sunol, CA); Bibeau, Camille (Dublin, CA); Payne, Stephen A. (Castro Valley, CA); Powell, Howard (Livermore, CA); Krupke, William F. (Pleasanton, CA); Sutton, Steven B. (Manteca, CA)

2002-01-01T23:59:59.000Z

480

Averaged equations for Josephson junction series arrays with LRC load  

E-Print Network [OSTI]

We derive the averaged equations describing a series array of Josephson junctions shunted by a parallel inductor-resistor-capacitor load. We assume that the junctions have negligable capacitance ($\\beta = 0$), and derive averaged equations which turn out to be completely tractable: in particular the stability of both in-phase and splay states depends on a single parameter, $\\del$. We find an explicit expression for $\\delta$ in terms of the load parameters and the bias current. We recover (and refine) a common claim found in the technical literature, that the in-phase state is stable for inductive loads and unstable for capacitive loads.

Kurt Wiesenfeld; James W. Swift

1994-08-26T23:59:59.000Z

Note: This page contains sample records for the topic "average driving speed" 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

An investigation of nonlinear xenon oscillation by method of averaging  

Science Journals Connector (OSTI)

A nonlinear analysis of xenon-temperature controlled nuclear reactor dynamics is presented. The set of equations in question belongs to a general class of rate equations with quadratic nonlinearities. Boundedness of the solutions is examined. The mean value of periodic solutions for the flux is shown to be always less than the equilibrium value. The Bogoliubov's method of averaging as extended by Case is applied to obtain approximate solutions. The mechanism of the existence of relaxation oscillations in the linear stability region is analyzed. Computer calculations are performed and found in good agreement with the approximate solutions obtained by means of the method of averaging.

Yoshiro Asahi; A.Ziya Akcasu

1973-01-01T23:59:59.000Z

482

WIND SPEED AND ATMOSPHERIC STABILITY TRENDS FOR SELECTED UNITED STATES SURFACE STATIONS  

SciTech Connect (OSTI)

Recently it has been suggested that global warming and a decrease in mean wind speeds over most land masses are related. Decreases in near surface wind speeds have been reported by previous investigators looking at records with time spans of 15 to 30 years. This study focuses on United States (US) surface stations that have little or no location change since the late 1940s or the 1950s--a time range of up to 58 years. Data were selected from 62 stations (24 of which had not changed location) and separated into ten groups for analysis. The group's annual averages of temperature, wind speed, and percentage of Pasquill-Gifford (PG) stability categories were fitted with linear least squares regression lines. The results showed that the temperatures have increased for eight of the ten groups as expected. Wind speeds have decreased for nine of the ten groups. The mean slope of the wind speed trend lines for stations within the coterminous US was -0.77 m s{sup -1} per century. The percentage frequency of occurrence for the neutral (D) PG stability category decreased, while that for the unstable (B) and the stable (F) categories increased in almost all cases except for the group of stations located in Alaska.

Buckley, R; Allen H. Weber, A

2006-11-01T23:59:59.000Z

483

MHL High Speed Cavitation | Open Energy Information  

Open Energy Info (EERE)

High Speed Cavitation High Speed Cavitation Jump to: navigation, search Basic Specifications Facility Name MHL High Speed Cavitation Overseeing Organization University of Michigan Hydrodynamics Hydrodynamic Testing Facility Type Channel Length(m) 0.8 Beam(m) 0.2 Depth(m) 0.2 Cost(per day) $2000(+ Labor/Materials) Towing Capabilities Towing Capabilities Yes Maximum Velocity(m/s) 25.9 Wavemaking Capabilities Wavemaking Capabilities None Channel/Tunnel/Flume Channel/Tunnel/Flume Yes Velocity(m/s) 25.9 Recirculating No Wind Capabilities Wind Capabilities None Control and Data Acquisition Description Custom Data Acquisition System using National Instruments hardware; system compatible with Planing Hull and Floating Beam Dynamometers Number of channels 16 Bandwidth(kHz) 20 Cameras Yes

484

Measuring the speed of cosmological gravitational waves  

E-Print Network [OSTI]

In general relativity gravitational waves propagate at the speed of light, however in alternative theories of gravity that might not be the case. We study the effects of a modified speed of gravity, $c_T^2$, on the B-modes of the Cosmic Microwave Background (CMB) anisotropy in polarisation. We find that a departure from the light speed value would leave a characteristic imprint on the BB spectrum part induced by tensors, manifesting as a shift in the angular scale of its peaks. We derive constraints by using the available {\\it Planck} and BICEP2 datasets showing how $c_T^2$ can be measured, albeit obtaining weak constraints due to the overall poor accuracy of the current BB power spectrum measurements. The present constraint corresponds to $c_T^2 = 1.30 \\pm 0.79$ and $c_T^2measurements, largely due to the absence of degeneracy with other cosmological parameters.

Marco Raveri; Carlo Baccigalupi; Alessandra Silvestri; Shuang-Yong Zhou

2014-05-30T23:59:59.000Z

485

Sound Speed Perturbations Due to Internal Tides  

Science Journals Connector (OSTI)

Internal tides are perhaps the most prevalent and largest amplitude internal gravity waves in the ocean. They are commonly generated by the scattering of surfacetidal energy into internal modes when the surfacetides propagate on to continental shelves. A portion of the internal tidal energy propagates into the deep ocean. One of the effects of internal tides on underwater acoustic propagation is to perturb the temperature and salinity versus depth profiles and thus the sound speed versus depth profile. Starting with temperature and salinity versus depth profiles from near Eleuthera Island the internal tide eigenfunctions as well as the sound speed profile have been computed for a water depth of 4500 m. Assuming a value for the vertical displacement amplitude of a first vertical mode internal tide the perturbed temperature and salinity profiles have been computed. From these perturbed profiles the consequent perturbed sound speed profiles have been computed for cases of maximum up and down internal tide displacement. The first mode internal tide has no vertical displacement at the sea surface and bottom and a maximum near the base of the main thermocline (depth of about 1200 m). Since the SOFAR axis is also near the base of the main thermocline and since the pressureeffects on sound speed are predominant below the SOFAR axis the sound speed perturbation due to the first mode internal tide is greatest at a depth (about 550 m) above the SOFAR axis. An internal tide with a maximum vertical displacement of 10 m produces a maximum sound speed perturbation of ±0.7 m/sec.

Christopher N. K. Mooers

1973-01-01T23:59:59.000Z

486

Squeezing in driven bimodal Bose-Einstein condensates: Erratic driving versus noise  

Science Journals Connector (OSTI)

We study the interplay of squeezing and phase randomization near the hyperbolic instability of a two-site Bose-Hubbard model in the Josephson interaction regime. We obtain results for the quantum Zeno suppression of squeezing far beyond the previously found short time behavior. More importantly, we contrast the expected outcome with the case where randomization is induced by erratic driving with the same fluctuations as the quantum noise source, finding significant differences. These are related to the distribution of the squeezing factor, which has log-normal characteristics: hence its average is significantly different from its median due to the occurrence of rare events.

Christine Khripkov; Amichay Vardi; Doron Cohen

2012-05-24T23:59:59.000Z

487

Well performance under solutions gas drive  

SciTech Connect (OSTI)

A fully implicit black-oil simulator was written to predict the drawdown and buildup responses for a single well under Solution Gas Drive. The model is capable of handling the following reservoir behaviors: Unfractured reservoir, Double-Porosity system, and Double Permeability-Double Porosity model of Bourdet. The accuracy of the model results is tested for both single-phase liquid flow and two-phase flow. The results presented here provide a basis for the empirical equations presented in the literature. New definitions of pseudopressure and dimensionless time are presented. By using these two definitions, the multiphase flow solutions correlate with the constant rate liquid flow solution for both transient and boundary-dominated flow. For pressure buildup tests, an analogue for the liquid solution is constructed from the drawdown pseudopressure, similar to the reservoir integral of J. Jones. The utility of using the producing gas-oil ration at shut in to compute pseudopressures and pseudotimes is documented. The influence of pressure level and skin factor on the Inflow Performance Relationship (IPR) of wells producing solution gas drive systems is examined. A new definition of flow efficiency that is based on the structure of the deliverability equations is proposed. This definition avoids problems that result when the presently available methods are applied to heavily stimulated wells. The need for using pseudopressures to analyze well test data for fractured reservoirs is shown. Expressions to compute sandface saturations for fractured systems are presented.

Camacho-Velazquez, R.G.

1987-01-01T23:59:59.000Z

488

Cylindrical implosion experiments using laser direct drive  

SciTech Connect (OSTI)

Direct-drive cylindrical-implosion experiments are performed to study perturbed hydrodynamic flows in convergent geometry. Two experimental campaigns have been conducted, to demonstrate the advantages of direct over indirect drive and to validate numerical simulations of zeroth-order hydrodynamics and single-mode perturbation growth. Results and analysis of three unperturbed-target shots and two perturbed-target shots are discussed in detail. For unperturbed-target implosions, positions of inner and outer shell edges agree between simulation and experiment during the laser pulse. However, observed shell thickness is greater than simulated in unperturbed targets during deceleration and rebound; the effect appears only at the shell{close_quote}s exterior edge. For perturbed-target implosions, growth factors {approximately}10{endash}14 are observed, whereas growth factors near 30 are expected from simulation. Rayleigh{endash}Taylor growth appears to differ between simulation and experiment. Observed zeroth-order flow at the exterior edge of imploding, perturbed targets appears to differ from simulation, even during acceleration. A possible physical model to explain such apparent differences is identified. {copyright} {ital 1999 American Institute of Physics.}

Tubbs, D.L.; Barnes, C.W.; Beck, J.B.; Hoffman, N.M.; Oertel, J.A.; Watt, R.G. [Los Alamos National Laboratory, Post Office Box 1663, Los Alamos, New Mexico 87545 (United States)] [Los Alamos National Laboratory, Post Office Box 1663, Los Alamos, New Mexico 87545 (United States); Boehly, T.; Bradley, D.; Jaanimagi, P.; Knauer, J. [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)] [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)

1999-05-01T23:59:59.000Z

489

On-chip high speed localized cooling using superlattice microrefrigerators  

E-Print Network [OSTI]

cooling, microrefrigerators, optoelectronics, superlattice,in high power, high-speed optoelectronics devices, and

Zhang, Y; Christofferson, J; Shakouri, A; Zeng, G H; Bowers, J E; Croke, E T

2006-01-01T23:59:59.000Z

490

Variable Speed of Light Research Project Dave Schumann  

E-Print Network [OSTI]

Variable Speed of Light Research Project Dave Schumann Dr. Bharath Narayanan 21 September 2003 mathematics of the Variable Speed of Light (VSL) theory. In a paper titled, "A Time Varying Speed of Light of a variable speed of light in the early stages of the universe. They propose corrections to the cosmological

Zakharov, Vladimir

491

Motion at High Speed Did you read chapter 7  

E-Print Network [OSTI]

fast is "high speed" 50 mph 225 mphp 550 mph 39,000 mph Speed of light: 670,000,000 mph Extends off/20,000 of the speed of li hlight All Motion is relative We must define a reference frame in which to measure/Morley experiment. Albert Michelson Conclusion: Light does not obey Galilean relativity! Relativity and the Speed

Hart, Gus

492

Residual Fuel Oil Prices, Average - Sales to End Users  

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

Product/Sales Type: Residual Fuel, Average - Sales to End Users Residual Fuel, Average - Sales for Resale Sulfur Less Than or Equal to 1% - Sales to End Users Sulfur Less Than or Equal to 1% - Sales for Resale Sulfur Greater Than 1% - Sales to End Users Sulfur Greater Than 1% - Sales for Resale Period: Monthly Annual Product/Sales Type: Residual Fuel, Average - Sales to End Users Residual Fuel, Average - Sales for Resale Sulfur Less Than or Equal to 1% - Sales to End Users Sulfur Less Than or Equal to 1% - Sales for Resale Sulfur Greater Than 1% - Sales to End Users Sulfur Greater Than 1% - Sales for Resale Period: Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Product/Sales Type Area Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 View History U.S. - - - - - - 1983-2013 East Coast (PADD 1) - - - - - - 1983-2013 New England (PADD 1A) - - - - - - 1983-2013 Connecticut - - - - - - 1983-2013 Maine - - - - - - 1983-2013 Massachusetts - - - - - - 1983-2013

493

Navy Estimated Average Hourly Load Profile by Month (in MW)  

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

Navy Estimated Average Hourly Load Profile by Month (in MW) MONTH HE1 HE2 HE3 HE4 HE5 HE6 HE7 HE8 HE9 HE10 HE11 HE12 HE13 HE14 HE15 HE16 HE17 HE18 HE19 HE20 HE21 HE22 HE23 HE24...

494

Disk-averaged Spectra & light-curves of Earth  

E-Print Network [OSTI]

We are using computer models to explore the observational sensitivity to changes in atmospheric and surface properties, and the detectability of biosignatures, in the globally averaged spectra and light-curves of the Earth. Using AIRS (Atmospheric Infrared Sounder) data, as input for atmospheric and surface properties, we have generated spatially resolved high-resolution synthetic spectra using the SMART radiative transfer model, for a variety of conditions, from the UV to the far-IR (beyond the range of current Earth-based satellite data). We have then averaged over the visible disk for a number of different viewing geometries to quantify the sensitivity to surface types and atmospheric features as a function of viewing geometry, and spatial and spectral resolution. These results have been processed with an instrument simulator to improve our understanding of the detectable characteristics of Earth-like planets as viewed by the first generation extrasolar terrestrial planet detection and characterization missions (Terrestrial Planet Finder/Darwin and Life finder). The wavelength range of our results are modelled over are applicable to both the proposed visible coronograph and mid-infrared interferometer TPF architectures. We have validated this model against disk-averaged observations by the Mars Global Surveyor Thermal Emission Spectrometer (MGS TES). This model was also used to analyze Earth-shine data for detectability of planetary characteristics and biosignatures in disk-averaged spectra.

G. Tinetti; V. S. Meadows; D. Crisp; W. Fong; N. Kiang; E. Fishbein; T. Velusamy; E. Bosc; M. Turnbull

2005-02-11T23:59:59.000Z

495

Averaging of Temporal Memories by Rats Dale N. Swanton  

E-Print Network [OSTI]

Averaging of Temporal Memories by Rats Dale N. Swanton Villanova University Cynthia M. Gooch University of Pennsylvania School of Medicine Matthew S. Matell Villanova University Rats were trained on a mixed fixed-interval schedule in which stimulus A (tone or light) indicated food availability after 10

Matell, Matthew S.

496

IE 361 Module 15 The Average Run Length Concept  

E-Print Network [OSTI]

IE 361 Module 15 The Average Run Length Concept Reading: Section 3.5 of Statistical Quality Assurance Methods for Engineers Prof. Steve Vardeman and Prof. Max Morris Iowa State University Vardeman Electric set of alarm rules to a control charting scheme? The most e¤ective means known for making

Vardeman, Stephen B.

497

Electric-drive tractability indicator integrated in hybrid electric vehicle tachometer  

DOE Patents [OSTI]

An indicator, system and method of indicating electric drive usability in a hybrid electric vehicle. A tachometer is used that includes a display having an all-electric drive portion and a hybrid drive portion. The all-electric drive portion and the hybrid drive portion share a first boundary which indicates a minimum electric drive usability and a beginning of hybrid drive operation of the vehicle. The indicated level of electric drive usability is derived from at least one of a percent battery discharge, a percent maximum torque provided by the electric drive, and a percent electric drive to hybrid drive operating cost for the hybrid electric vehicle.

Tamai, Goro; Zhou, Jing; Weslati, Feisel

2014-09-02T23:59:59.000Z

498

Alternative Fuels Data Center: Limited Speed Vehicle Access to Roadways  

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

Limited Speed Vehicle Limited Speed Vehicle Access to Roadways to someone by E-mail Share Alternative Fuels Data Center: Limited Speed Vehicle Access to Roadways on Facebook Tweet about Alternative Fuels Data Center: Limited Speed Vehicle Access to Roadways on Twitter Bookmark Alternative Fuels Data Center: Limited Speed Vehicle Access to Roadways on Google Bookmark Alternative Fuels Data Center: Limited Speed Vehicle Access to Roadways on Delicious Rank Alternative Fuels Data Center: Limited Speed Vehicle Access to Roadways on Digg Find More places to share Alternative Fuels Data Center: Limited Speed Vehicle Access to Roadways on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Limited Speed Vehicle Access to Roadways A limited speed vehicle is defined as a vehicle that is capable of

499

Alternative Fuels Data Center: Low-Speed Vehicle Inspection Exemption  

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

Low-Speed Vehicle Low-Speed Vehicle Inspection Exemption to someone by E-mail Share Alternative Fuels Data Center: Low-Speed Vehicle Inspection Exemption on Facebook Tweet about Alternative Fuels Data Center: Low-Speed Vehicle Inspection Exemption on Twitter Bookmark Alternative Fuels Data Center: Low-Speed Vehicle Inspection Exemption on Google Bookmark Alternative Fuels Data Center: Low-Speed Vehicle Inspection Exemption on Delicious Rank Alternative Fuels Data Center: Low-Speed Vehicle Inspection Exemption on Digg Find More places to share Alternative Fuels Data Center: Low-Speed Vehicle Inspection Exemption on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Low-Speed Vehicle Inspection Exemption Low-speed vehicles are exempt from annual state vehicle inspections.

500

THE "LISTENING SPEED" PARADIGM FOR SYNTHESIS EVALUATION  

E-Print Network [OSTI]

THE "LISTENING SPEED" PARADIGM FOR SYNTHESIS EVALUATION Rolf Carlson, Björn Granström, Lennart al. study, the synthesis used was produced by the Votrax synthesizer, a widely used device measures, sentence listening time, word recognition and proposition recognition, correlated with text

Carlson, Rolf