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Note: This page contains sample records for the topic "regenerative braking recharges" 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

Regenerative braking device  

DOE Patents (OSTI)

Disclosed are several embodiments of a regenerative braking device for an automotive vehicle. The device includes a plurality of rubber rollers (24, 26) mounted for rotation between an input shaft (14) connectable to the vehicle drivetrain and an output shaft (16) which is drivingly connected to the input shaft by a variable ratio transmission (20). When the transmission ratio is such that the input shaft rotates faster than the output shaft, the rubber rollers are torsionally stressed to accumulate energy, thereby slowing the vehicle. When the transmission ratio is such that the output shaft rotates faster than the input shaft, the rubber rollers are torsionally relaxed to deliver accumulated energy, thereby accelerating or driving the vehicle.

Hoppie, Lyle O. (Birmingham, MI)

1982-01-12T23:59:59.000Z

2

Combined hydraulic and regenerative braking system  

DOE Patents (OSTI)

A combined hydraulic and regenerative braking system and method for an electric vehicle is disclosed. The braking system is responsive to the applied hydraulic pressure in a brake line to control the braking of the vehicle to be completely hydraulic up to a first level of brake line pressure, to be partially hydraulic at a constant braking force and partially regenerative at a linearly increasing braking force from the first level of applied brake line pressure to a higher second level of brake line pressure, to be partially hydraulic at a linearly increasing braking force and partially regenerative at a linearly decreasing braking force from the second level of applied line pressure to a third and higher level of applied line pressure, and to be completely hydraulic at a linearly increasing braking force from the third level to all higher applied levels of line pressure.

Venkataperumal, R.R.; Mericle, G.E.

1979-08-09T23:59:59.000Z

3

Combined hydraulic and regenerative braking system  

DOE Patents (OSTI)

A combined hydraulic and regenerative braking system and method for an electric vehicle, with the braking system being responsive to the applied hydraulic pressure in a brake line to control the braking of the vehicle to be completely hydraulic up to a first level of brake line pressure, to be partially hydraulic at a constant braking force and partially regenerative at a linearly increasing braking force from the first level of applied brake line pressure to a higher second level of brake line pressure, to be partially hydraulic at a linearly increasing braking force and partially regenerative at a linearly decreasing braking force from the second level of applied line pressure to a third and higher level of applied line pressure, and to be completely hydraulic at a linearly increasing braking force from the third level to all higher applied levels of line pressure.

Venkataperumal, Rama R. (Troy, MI); Mericle, Gerald E. (Mount Clemens, MI)

1981-06-02T23:59:59.000Z

4

Variable ratio regenerative braking device  

DOE Patents (OSTI)

Disclosed is a regenerative braking device (10) for an automotive vehicle. The device includes an energy storage assembly (12) having a plurality of rubber rollers (26, 28) mounted for rotation between an input shaft (36) and an output shaft (42), clutches (38, 46) and brakes (40, 48) associated with each shaft, and a continuously variable transmission (22) connectable to a vehicle drivetrain and to the input and output shafts by the respective clutches. The rubber rollers are torsionally stressed to accumulate energy from the vehicle when the input shaft is clutched to the transmission while the brake on the output shaft is applied, and are torsionally relaxed to deliver energy to the vehicle when the output shaft is clutched to the transmission while the brake on the input shaft is applied. The transmission ratio is varied to control the rate of energy accumulation and delivery for a given rotational speed of the vehicle drivetrain.

Hoppie, Lyle O. (Birmingham, MI)

1981-12-15T23:59:59.000Z

5

The Application of Fuzzy Logic in Regenerative Braking of EV  

Science Conference Proceedings (OSTI)

Regenerative braking can improve energy usage efficiency and prolong the driving distance of electric vehicle per charge, effectively. In the paper, we design a sugeno’s fuzzy logic controller which has four inputs including driver’s braking ... Keywords: regenerative braking, fuzzy logic control, braking force distribution, ADVISOR

Zijian Zhang; Guoqing Xu; Weimin Li; Liang Zheng

2010-08-01T23:59:59.000Z

6

Adaptive controller for regenerative and friction braking system  

DOE Patents (OSTI)

A regenerative and friction braking system for a vehicle having one or more roadwheels driven by an electric traction motor includes a driver responsive device for producing a brake demand signal having a magnitude corresponding to the level of braking force selected by the driver and friction and regenerative brakes operatively connected with the roadwheels of the vehicle. A system according to this invention further includes control means for operating the friction and regenerative braking subsystems so that maximum brake torques sustainable by the roadwheels of the vehicle without skidding or slipping will not be exceeded.

Davis, Roy I. (Ypsilanti, MI)

1990-01-01T23:59:59.000Z

7

Adaptive controller for regenerative and friction braking system  

DOE Patents (OSTI)

A regenerative and friction braking system for a vehicle having one or more road wheels driven by an electric traction motor includes a driver responsive device for producing a brake demand signal having a magnitude corresponding to the level of braking force selected by the driver and friction and regenerative brakes operatively connected with the road wheels of the vehicle. A system according to this invention further includes control means for operating the friction and regenerative braking subsystems so that maximum brake torques sustainable by the road wheels of the vehicle without skidding or slipping will not be exceeded. 8 figs.

Davis, R.I.

1990-10-16T23:59:59.000Z

8

Electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

An antiskid braking and traction control system for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes one or more sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensors and determining if regenerative antiskid braking control, requiring hydrualic braking control, or requiring traction control are required. The processor then employs a control strategy based on the determined vehicle state and provides command signals to a motor controller to control the operation of the electric traction motor and to a brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative antiskid braking control, hydraulic braking control, and traction control.

Cikanek, Susan R. (Wixom, MI)

1995-01-01T23:59:59.000Z

9

Electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

An antiskid braking and traction control system for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes one or more sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensors and determining if regenerative antiskid braking control, requiring hydraulic braking control, or requiring traction control are required. The processor then employs a control strategy based on the determined vehicle state and provides command signals to a motor controller to control the operation of the electric traction motor and to a brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative antiskid braking control, hydraulic braking control, and traction control. 10 figs.

Cikanek, S.R.

1995-09-12T23:59:59.000Z

10

Study on Regenerative Brake Method of Hybrid Electric Drive System of Armored Vehicle  

Science Conference Proceedings (OSTI)

Aiming at characteristics of regenerative brake of hybrid electric drive system of tracked armored vehicle, mechanism of regenerative brake by pulse width modulation is in-depth analyzed, motor speed, brake current, feedback current, feedback energy ... Keywords: hybrid electric drive, motor, regenerative brake

Li Hua; Zhong Meng-chun; Zhang Jian; Xu Da; Lin Hai

2011-10-01T23:59:59.000Z

11

The Research of Traction Motor Energy-Saving Regenerative Braking Control Technology  

Science Conference Proceedings (OSTI)

In all the motor braking control systems, regenerative braking is the only way of energy-saving braking control mode. It can convert dynamic energy which generate during braking period into electric energy, then return to the grid. In this paper, through ... Keywords: regenerative braking, traction motor, direct torque, stator flux, slip frequency

Yuhua Wang; Jianlin Miao; Yuanfang Wei

2010-05-01T23:59:59.000Z

12

Regenerative braking device with rotationally mounted energy storage means  

DOE Patents (OSTI)

A regenerative braking device for an automotive vehicle includes an energy storage assembly (12) having a plurality of rubber rollers (26, 28) mounted for rotation between an input shaft (30) and an output shaft (32), clutches (50, 56) and brakes (52, 58) associated with each shaft, and a continuously variable transmission (22) connectable to a vehicle drivetrain and to the input and output shafts by the respective clutches. In a second embodiment the clutches and brakes are dispensed with and the variable ratio transmission is connected directly across the input and output shafts. In both embodiments the rubber rollers are torsionally stressed to accumulate energy from the vehicle when the input shaft rotates faster or relative to the output shaft and are torsionally relaxed to deliver energy to the vehicle when the output shaft rotates faster or relative to the input shaft.

Hoppie, Lyle O. (Birmingham, MI)

1982-03-16T23:59:59.000Z

13

Fuzzy logic electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

An regenerative antiskid braking and traction control system using fuzzy logic for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensor and determining if regenerative antiskid braking control, requiring hydraulic braking control, and requiring traction control are required. The processor then employs fuzzy logic based on the determined vehicle state and provides command signals to a motor controller to control operation of the electric traction motor and to the brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative braking control, hydraulic braking control, and traction control. 123 figs.

Cikanek, S.R.

1994-10-25T23:59:59.000Z

14

Fuzzy logic electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

An regenerative antiskid braking and traction control system using fuzzy logic for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensor and determining if regenerative antiskid braking control, requiring hydraulic braking control, and requiring traction control are required. The processor then employs fuzzy logic based on the determined vehicle state and provides command signals to a motor controller to control operation of the electric traction motor and to the brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative braking control, hydraulic braking control, and traction control.

Cikanek, Susan R. (Wixom, MI)

1994-01-01T23:59:59.000Z

15

Simulation of PSO Fuzzy Control Stratety for Regenerative Braking of HEV  

Science Conference Proceedings (OSTI)

Based on particle swarm optimization algorithm, a new fuzzy controller was constructed and a fuzzy control strategy of regenerative braking for HEV was proposed. A model of a parallel hybrid electric vehicle was built. The performance of the default ... Keywords: hybrid electric vehicle, fuzzy control, regenerative braking, particle swarm optimization

Wang Chun; Tang Lan

2012-04-01T23:59:59.000Z

16

Hybrid: Braking  

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

button highlighted Stopped Button subbanner graphic: gray bar BRAKING: PART 1 Regenerative braking converts otherwise wasted energy from braking into electricity and stores it in...

17

Regenerative braking on bicycles to power LED safety flashers  

E-Print Network (OSTI)

This work develops a method for capturing some of the kinetic energy ordinarily lost during braking on bicycles to power LED safety flashers. The system is designed to eliminate: (a) battery changing in popular LED flashers, ...

Collier, Ian M

2005-01-01T23:59:59.000Z

18

Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

1 1 Regenerative braking converts otherwise wasted energy from braking into electricity and stores it in the battery. In regenerative braking, the electric motor is reversed so that, instead of using electricity to turn the wheels, the rotating wheels turn the motor and create electricity. Using energy from the wheels to turn the motor slows the vehicle down. Go to nextÂ… stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the electric motor to the battery. Main stage: See through car with battery, engine, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the electric motor to the battery.

19

Lightweight pressure vessels and unitized regenerative fuel cells  

DOE Green Energy (OSTI)

Energy storage systems have been designed using lightweight pressure vessels with unitized regenerative fuel cells (URFCs). The vessels provide a means of storing reactant gases required for URFCs; they use lightweight bladder liners that act as inflatable mandrels for composite overwrap and provide a permeation barrier. URFC systems have been designed for zero emission vehicles (ZEVs); they are cost competitive with primary FC powered vehicles that operate on H/air with capacitors or batteries for power peaking and regenerative braking. URFCs are capable of regenerative braking via electrolysis and power peaking using low volume/low pressure accumulated oxygen for supercharging the power stack. URFC ZEVs can be safely and rapidly (<5 min.) refueled using home electrolysis units. Reversible operation of cell membrane catalyst is feasible without significant degradation. Such systems would have a rechargeable specific energy > 400 Wh/kg.

Mitlitsky, F.; Myers, B.; Weisberg, A.H.

1996-09-06T23:59:59.000Z

20

Full Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Braking button highlighted Stopped button Braking button highlighted Stopped button BRAKING PART 1 Regenerative braking converts otherwise wasted energy from braking into electricity and stores it in the battery. In regenerative braking, the electric motor is reversed so that, instead of using electricity to turn the wheels, the rotating wheels turn the motor and create electricity. Using energy from the wheels to turn the motor slows the vehicle down. Go to nextÂ… stage graphic: vertical blue rule Main stage: See through car with battery, engine, generator, power split device, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the power split device to the electric motor to the battery. Main stage: See through car with battery, engine, generator, power split device, and electric motor visible. The car is decelerating. There are arrows flowing from the front wheels to the power split device to the electric motor to the battery.

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

2 2 If additional stopping power is needed, conventional friction brakes (e.g., disc brakes) are also applied automatically. Go backÂ… stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Battery: The battery stores energy generated from the gasoline engine or, during regenerative braking, from the electric motor. Since the battery helps power the vehicle, it is larger and holds much more energy than batteries used to start conventional vehicles. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection.

22

Model and Simulation of a Super-capacitor Braking Energy Recovery System for Urban Railway Vehicles  

Science Conference Proceedings (OSTI)

In this paper, a braking energy recovery system based on super-capacitor was presented. The method use super-capacitor and the conventional braking resistance constitute a new braking unit to realize the regenerative energy recovery, when braking, braking ... Keywords: Urban railway transportation, regeneration braking, super-capacitor, energy recovery, electric traction

Chen Xiao-li; Yang Jian; Fang Yu

2010-08-01T23:59:59.000Z

23

Hybrid: Braking  

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

Button Stopped button highlighted subbanner graphic: gray bar Button Stopped button highlighted subbanner graphic: gray bar STOPPED When the vehicle is stopped, such as at a red light, the gasoline engine and electric motor shut off automatically so that energy is not wasted in idling. The battery continues to power auxillary systems, such as the air conditioning and dashboard displays. stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Battery: The battery stores energy generated from the gasoline engine or, during regenerative braking, from the electric motor. Since the battery helps power the vehicle, it is larger and holds much more energy than batteries used to start conventional vehicles. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection.

24

Hybrid: Braking  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Button Stopped button highlighted subbanner graphic: gray bar Button Stopped button highlighted subbanner graphic: gray bar STOPPED When the vehicle is stopped, such as at a red light, the gasoline engine and electric motor shut off automatically so that energy is not wasted in idling. The battery continues to power auxillary systems, such as the air conditioning and dashboard displays. stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection. Battery: The battery stores energy generated from the gasoline engine or, during regenerative braking, from the electric motor. Since the battery helps power the vehicle, it is larger and holds much more energy than batteries used to start conventional vehicles. Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection.

25

Brake blending strategy for a hybrid vehicle  

DOE Patents (OSTI)

A hybrid electric powertrain system is provided including a transmission for driving a pair of wheels of a vehicle and a heat engine and an electric motor/generator coupled to the transmission. A friction brake system is provided for applying a braking torque to said vehicle. A controller unit generates control signals to the electric motor/generator and the friction brake system for controllably braking the vehicle in response to a drivers brake command. The controller unit determines and amount of regenerative torque available and compares this value to a determined amount of brake torque requested for determining the control signals to the electric motor/generator and the friction brake system.

Boberg, Evan S. (Hazel Park, MI)

2000-12-05T23:59:59.000Z

26

Gravity brake  

DOE Patents (OSTI)

A mechanical gravity brake that prevents hoisted loads within a shaft from free-falling when a loss of hoisting force occurs. A loss of hoist lifting force may occur in a number of situations, for example if a hoist cable were to break, the brakes were to fail on a winch, or the hoist mechanism itself were to fail. Under normal hoisting conditions, the gravity brake of the invention is subject to an upward lifting force from the hoist and a downward pulling force from a suspended load. If the lifting force should suddenly cease, the loss of differential forces on the gravity brake in free-fall is translated to extend a set of brakes against the walls of the shaft to stop the free fall descent of the gravity brake and attached load.

Lujan, Richard E. (Santa Fe, NM)

2001-01-01T23:59:59.000Z

27

Braking system  

DOE Patents (OSTI)

A balanced braking system comprising a plurality of braking assemblies located about a member to be braked. Each of the braking assemblies consists of a spring biased piston of a first material fitted into a body of a different material which has a greater contraction upon cooling than the piston material. The piston is provided with a recessed head portion over which is positioned a diaphragm and forming a space therebetween to which is connected a pressurized fluid supply. The diaphragm is controlled by the fluid in the space to contact or withdraw from the member to be braked. A cooling means causes the body within which the piston is fitted to contract more than the piston, producing a tight shrink fit therebetween. The braking system is particularly applicable for selectively braking an arbor of an electron microscope which immobilizes, for example, a vertically adjustable low temperature specimen holder during observation. The system provides balanced braking forces which can be easily removed and re-established with minimal disturbance to arbor location.

Norgren, D.U.

1982-09-23T23:59:59.000Z

28

Computational model design and performance estimation in registration brake control  

Science Conference Proceedings (OSTI)

Electric motorcycles are applicable to both toys and real motorcycles, and also is a reference for constructing larger electrical vehicles. A design computational model of regenerative braking control of electric motorcycles and an experimental identification ...

P. S. Pa; S. C. Chang

2009-06-01T23:59:59.000Z

29

Present Status and Marketing Prospects of the Emerging Hybrid-Electric and Diesel Technologies to Reduce CO2 Emissions of New Light-Duty Vehicles in California  

E-Print Network (OSTI)

and to recover energy during regenerative braking. Both theof energy. The batteries are also recharged via regenerative

Burke, Andy

2004-01-01T23:59:59.000Z

30

Feasible Café Standard Increases Using Emerging Diesel and Hybrid-Electric Technologies for Light-Duty Vehicles in the United States  

E-Print Network (OSTI)

and to recover energy during regenerative braking. Both theof energy. The batteries are also recharged via regenerative

Burke, Andy; Abeles, Ethan

2004-01-01T23:59:59.000Z

31

Feasible CAFE Standard Increases Using Emerging Diesel and Hybrid-Electric Technologies for Light-Duty Vehicles in the United States  

E-Print Network (OSTI)

and to recover energy during regenerative braking. Both theof energy. The batteries are also recharged via regenerative

Burke, Andy; Abeles, Ethan C.

2004-01-01T23:59:59.000Z

32

Electric vehicle regenerative antiskid braking and traction ...  

Patent Number: 5,450,324: Issued: September 12, 1995: Official Filing: View the Complete Patent at the US Patent & Trademark Office: Lab: Idaho ...

33

Vehicle brake testing system  

SciTech Connect

This invention relates to a force measuring system capable of measuring forces associated with vehicle braking and of evaluating braking performance. The disclosure concerns an invention which comprises a first row of linearly aligned plates, a force bearing surface extending beneath and beside the plates, vertically oriented links and horizontally oriented links connecting each plate to a force bearing surface, a force measuring device in each link, a transducer coupled to each force measuring device, and a computing device coupled to receive an output signal from the transducer indicative of measured force in each force measuring device. The present invention may be used for testing vehicle brake systems.

Stevens, Samuel S [Harriman, TN; Hodgson, Jeffrey W [Lenoir City, TN

2002-11-19T23:59:59.000Z

34

Mechanical and Regenerative Braking Integration for a Hybrid Electric Vehicle.  

E-Print Network (OSTI)

??Hybrid electric vehicle technology has become a preferred method for the automotive industry to reduce environmental impact and fuel consumption of their vehicles. Hybrid electric… (more)

DeMers, Steven Michael

2008-01-01T23:59:59.000Z

35

Svendborg Brakes | Open Energy Information  

Open Energy Info (EERE)

energy Product Denmark-based manufacturer of braking systems for the wind industry, as well as for the oil sector. References Svendborg Brakes1 LinkedIn Connections CrunchBase...

36

Environmental Energy Technologies Division News  

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

battery recharges), high power (to provide acceptable vehicle acceleration and to receive energy generated during vehicle deceleration, a.k.a. regenerative braking), long lifetime,...

37

FEG2005_BODY_Updates.pmd  

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

plugged into an external source of electricity to be recharged; conventional gasoline and regenerative braking provide all the energy the vehicle needs. Potential buyers should...

38

Application and Practice of Regenerative Combustion Technology ...  

Science Conference Proceedings (OSTI)

Regenerative Combustion burning alternative to traditional flow control system is ... that regenerative combustion have many advantage in energy conservation ...

39

Commercial Motor Vehicle Brake Assessment Tools  

E-Print Network (OSTI)

Commercial Motor Vehicle Brake Assessment Tools Commercial Motor Vehicle Roadside Technology Corridor Safety Technology Showcase October 14, 2010 Commercial Motor Vehicle Roadside Technology Corridor #12;Overview · Commercial Motor Vehicle (CMV) Air Brake System · North American Standard Level-1

40

file:///E|/ev/test/evps.shtml  

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

is used as a generator to recharge the batteries when the vehicle is slowing down. During regenerative braking, some of the kinetic energy normally absorbed by the brakes and...

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Recharge Elec. Upgrade Type  

E-Print Network (OSTI)

battery can be plugged in to an electric outlet to be recharged. Background: PHEVs 1. How many U" cost) · Variety of upgrade packages selected--some with zero upgrades · Most popular upgrade" Price Scenario ("home recharges" only) · "Base" PHEV=$3,000 premium · Added costs for upgrades (Full

California at Davis, University of

42

Regenerative air heater  

DOE Patents (OSTI)

A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The steel skirt thermally expands to accommodate the thermal expansion of the dome structure despite substantial temperature differential thereby reducing relative movement between the dome bricks. Gas cooling of the steel skirt allows the structure to operate above its normal temperature during clean-out cycles and also allows for the control of the thermal expansion of the steel skirt.

Hasselquist, Paul B. (Maple Grove, MN); Baldner, Richard (Minnetonka, MN)

1982-01-01T23:59:59.000Z

43

REGENERATIVE TRANSISTOR AMPLIFIER  

DOE Patents (OSTI)

Electrical circults for use in computers and the like are described. particularly a regenerative bistable transistor amplifler which is iurned on by a clock signal when an information signal permits and is turned off by the clock signal. The amplifier porforms the above function with reduced power requirements for the clock signal and circuit operation. The power requirements are reduced in one way by employing transformer coupling which increases the collector circuit efficiency by eliminating the loss of power in the collector load resistor.

Kabell, L.J.

1958-11-25T23:59:59.000Z

44

Regenerative air heater  

DOE Patents (OSTI)

A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The steel skirt thermally expands to accommodate the thermal expansion of the dome structure despite substantial temperature differential thereby reducing relative movement between the dome bricks. Gas cooling of the steel skirt allows the structure to operate above its normal temperature during clean-out cycles and also allows for the control of the thermal expansion of the steel skirt.

Hasselquist, P.B.; Baldner, R.

1980-11-26T23:59:59.000Z

45

Ring regenerative laser amplifier  

DOE Patents (OSTI)

This invention consists of an efficient, high gain, compact regenerative amplifier that amplifies a seed pulse of laser energy to produce an amplified pulse of greater energy. The amplifier is useful for amplifying seed pulses having a broad bandwidth or in situations where tunability is necessary. The amplifier has high gain while maintaining high pulse contrast. A seed pulse can be amplified to the saturation fluence while maintaining a high contrast (>10[sup 3]). The regenerative amplifier has an optical cavity in a ring configuration, a gain material positioned in the cavity, a polarization-rotating element positioned in the cavity to rotate the polarization of the pulse upon each pass around the cavity, means for inserting the seed pulse into the cavity, and means for removing the polarization-rotated, amplified pulse from the cavity. In some embodiments, the seed pulse is switched in passively, by a selective polarization, and is switched out after a predetermined number of passes around the ring cavity. This completely passive arrangement avoids possibility of switchout failure, and minimizes the ASE problem. In other embodiments, a selectively actuable switch, such as electro-optic element, may be provided within the ring cavity, to switch-in the seed pulse and switch-out the amplified pulse. The electro-optic element may be actuated with a square wave that has a peak voltage equal to the half-wave voltage of the electro-optic crystal.

Perry, M.D.; Patterson, F.G.

1991-01-01T23:59:59.000Z

46

Ring regenerative laser amplifier  

DOE Patents (OSTI)

This invention consists of an efficient, high gain, compact regenerative amplifier that amplifies a seed pulse of laser energy to produce an amplified pulse of greater energy. The amplifier is useful for amplifying seed pulses having a broad bandwidth or in situations where tunability is necessary. The amplifier has high gain while maintaining high pulse contrast. A seed pulse can be amplified to the saturation fluence while maintaining a high contrast (>10{sup 3}). The regenerative amplifier has an optical cavity in a ring configuration, a gain material positioned in the cavity, a polarization-rotating element positioned in the cavity to rotate the polarization of the pulse upon each pass around the cavity, means for inserting the seed pulse into the cavity, and means for removing the polarization-rotated, amplified pulse from the cavity. In some embodiments, the seed pulse is switched in passively, by a selective polarization, and is switched out after a predetermined number of passes around the ring cavity. This completely passive arrangement avoids possibility of switchout failure, and minimizes the ASE problem. In other embodiments, a selectively actuable switch, such as electro-optic element, may be provided within the ring cavity, to switch-in the seed pulse and switch-out the amplified pulse. The electro-optic element may be actuated with a square wave that has a peak voltage equal to the half-wave voltage of the electro-optic crystal.

Perry, M.D.; Patterson, F.G.

1991-12-31T23:59:59.000Z

47

Regenerative Fuel Cells for Energy Storage  

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

11 1 Regenerative Fuel Cells for Energy Storage April 2011 Corky Mittelsteadt April 2011 2 Outline 1. Regenerative Fuel Cells at Giner 2. Regenerative Systems for Energy Storage 1....

48

Battery-Size Regenerative Fuel Cells  

ORNL 2010-G01073/jcn UT-B ID 201002378 Battery-Size Regenerative Fuel Cells Technology Summary A battery-size regenerative fuel cell with energy ...

49

CMV Brake Wear and Performance Test Little is known about the brake  

E-Print Network (OSTI)

inspections were due to brake defects. Additionally, brake maintenance and repair present a significant cost Center for Transportation Analysis (CTA) Research Areas Aviation Safety Air Traffic Management Analysis Environmental Policy Analysis Highway Safety Intelligent Transportation Systems Logistics Management Supply

50

Improved braking torque generation capacity of an eddy current brake with time varying magnetic fields: A numerical study  

Science Conference Proceedings (OSTI)

Eddy current brakes (ECB) are electrically controlled and non-contact actuators used as assistive brakes in vehicles. ECBs exhibit insufficient generated braking torque at low speeds. In order to overcome this, the use of AC magnetic fields with fixed ... Keywords: Automotive applications, Brake-by-wire, Eddy current brakes, Finite element analysis, Time-varying magnetic field

Kerem Karakoc; Edward J. Park; Afzal Suleman

2012-10-01T23:59:59.000Z

51

Commercial Motor Vehicle Brake-Related Research  

E-Print Network (OSTI)

Commercial Motor Vehicle Brake-Related Research Commercial Motor Vehicle Roadside Technology Corridor Safety Technology Showcase October 14, 2010 Commercial Motor Vehicle Roadside Technology Corridor

52

Rechargeable electric battery system  

SciTech Connect

A rechargable battery, system and method for controlling its operation and the recharging thereof in order to prolong the useful life of the battery and to optimize its operation is disclosed. In one form, an electronic microprocessor is provided within or attached to the battery for receiving and processing electrical signals generated by one or more sensors of battery operational variable and for generating output signals which may be employed to control the charge of the battery and to display one or more variables concerned with the battery operation.

Lemelson, J.H.

1981-09-15T23:59:59.000Z

53

Multidisciplinary design optimization of an automotive magnetorheological brake design  

Science Conference Proceedings (OSTI)

This paper presents the development of a new electromechanical brake system using magnetorheological (MR) fluid. The proposed brake system consists of rotating disks immersed in a MR fluid and enclosed in an electromagnet, where the yield stress of the ... Keywords: Automotive brake, Computational fluid dynamics, Electric brake actuator, Finite element analysis, Magnetorheological fluid, Multidisciplinary design optimization

Edward J. Park; Luis Falcão da Luz; Afzal Suleman

2008-02-01T23:59:59.000Z

54

Laser system using regenerative amplifier  

DOE Patents (OSTI)

High energy laser system using a regenerative amplifier, which relaxes all constraints on laser components other than the intrinsic damage level of matter, so as to enable use of available laser system components. This can be accomplished by use of segmented components, spatial filters, at least one amplifier using solid state or gaseous media, and separated reflector members providing a long round trip time through the regenerative cavity, thereby allowing slower switching and adequate time to clear the spatial filters, etc. The laser system simplifies component requirements and reduces component cost while providing high energy output.

Emmett, John L. (Pleasanton, CA)

1980-01-01T23:59:59.000Z

55

Laser system using regenerative amplifier  

DOE Patents (OSTI)

High energy laser system is disclosed using a regenerative amplifier, which relaxes all constraints on laser components other than the intrinsic damage level of matter, so as to enable use of available laser system components. This can be accomplished by use of segmented components, spatial filters, at least one amplifier using solid state or gaseous media, and separated reflector members providing a long round trip time through the regenerative cavity, thereby allowing slower switching and adequate time to clear the spatial filters, etc. The laser system simplifies component requirements and reduces component cost while providing high energy output. 10 figs.

Emmett, J.L.

1980-03-04T23:59:59.000Z

56

Method and apparatus for wind turbine braking  

DOE Patents (OSTI)

A method for braking a wind turbine including at least one rotor blade coupled to a rotor. The method includes selectively controlling an angle of pitch of the at least one rotor blade with respect to a wind direction based on a design parameter of a component of the wind turbine to facilitate reducing a force induced into the wind turbine component as a result of braking.

Barbu, Corneliu (Laguna Hills, CA); Teichmann, Ralph (Nishkayuna, NY); Avagliano, Aaron (Houston, TX); Kammer, Leonardo Cesar (Niskayuna, NY); Pierce, Kirk Gee (Simpsonville, SC); Pesetsky, David Samuel (Greenville, SC); Gauchel, Peter (Muenster, DE)

2009-02-10T23:59:59.000Z

57

Universal connector for rechargeable and non-rechargeable batteries  

SciTech Connect

In an electrical product having battery recharging means and a load adapted for energization from a battery, a battery connector is described which consists of: terminal means adapted to contact the output terminals of either a non-rechargeable battery having a first physical configuration or a rechargeable battery having a second physical configuration, the terminal means coupled to the load of the product such that the load may be energized from either the non-rechargeable battery or the rechargeable battery; circuit means coupling the terminal means and the battery recharging means, the circuit means including a switch having an open state preventing charging through the circuit means of a battery coupled to the terminal means and a closed state permitting charging through the circuit means of a battery coupled to the terminal means; and biased actuating means coupled to the switch for moving the switch between its closed and open sites, the actuating means adapted to coact with the first physical configuration of a non-rechargeable battery to move the switch against a bias to its open state and adapted to coact with the second physical configuration of a rechargeable battery to allow the switch to move with the bias to its closed state; whereby the physical configurations of a battery connected to the battery connector determines whether or not the battery will be charged.

Mundschenk, G.R.; Decker, R.C.

1986-07-22T23:59:59.000Z

58

Regenerative Braking for an Electric Vehicle Using Ultracapacitors and a Buck-Boost Converter  

E-Print Network (OSTI)

-mail: jdixon@ing.puc.cl *University of Concepción Abstract An ultracapacitor bank control system and decelerations of the vehicle with minimal loss of energy, and minimal degradation of the main battery pack. The system uses an IGBT Buck-Boost converter, which is connected to the ultracapacitor bank at the Boost side

Rudnick, Hugh

59

Self-Regulating, Nonflamable Rechargeable Lithium Batteries ...  

Rechargeable lithium batteries are superior to other rechargeable batteries due to their ability to store more energy per unit size and weight and to operate at ...

60

Regenerative Burners Assessment in Holding Reverberatory Furnace  

Science Conference Proceedings (OSTI)

The assessment showed that the regenerative burner furnaces are not profitable in saving energy in addition to the negative impact on the furnace life.

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Pomona, California -- Center for Regenerative Studies [Roots  

E-Print Network (OSTI)

regenerative" technologies — those that turn both self-renewing resources (such as sunlight, wind and rain) and wastes into usable food, water and energy.

Bressi, Todd W

1995-01-01T23:59:59.000Z

62

Novel Bioceramic Scaffolds for Regenerative Medicine  

Science Conference Proceedings (OSTI)

Presentation Title, Novel Bioceramic Scaffolds for Regenerative Medicine ... Composite Powder from Zro2-B2O3/B System by High-Energy Ball-Milling and ...

63

Advanced regenerative absorption refrigeration cycles  

DOE Patents (OSTI)

Multi-effect regenerative absorption cycles which provide a high coefficient of performance (COP) at relatively high input temperatures. An absorber-coupled double-effect regenerative cycle (ADR cycle) (10) is provided having a single-effect absorption cycle (SEA cycle) (11) as a topping subcycle and a single-effect regenerative absorption cycle (1R cycle) (12) as a bottoming subcycle. The SEA cycle (11) includes a boiler (13), a condenser (21), an expansion device (28), an evaporator (31), and an absorber (40), all operatively connected together. The 1R cycle (12) includes a multistage boiler (48), a multi-stage resorber (51), a multisection regenerator (49) and also uses the condenser (21), expansion device (28) and evaporator (31) of the SEA topping subcycle (11), all operatively connected together. External heat is applied to the SEA boiler (13) for operation up to about 500 degrees F., with most of the high pressure vapor going to the condenser (21) and evaporator (31) being generated by the regenerator (49). The substantially adiabatic and isothermal functioning of the SER subcycle (12) provides a high COP. For higher input temperatures of up to 700 degrees F., another SEA cycle (111) is used as a topping subcycle, with the absorber (140) of the topping subcycle being heat coupled to the boiler (13) of an ADR cycle (10). The 1R cycle (12) itself is an improvement in that all resorber stages (50b-f) have a portion of their output pumped to boiling conduits (71a-f) through the regenerator (49), which conduits are connected to and at the same pressure as the highest pressure stage (48a) of the 1R multistage boiler (48).

Dao, Kim (14 Nace Ave., Piedmont, CA 94611)

1990-01-01T23:59:59.000Z

64

Wavelength tunable alexandrite regenerative amplifier  

Science Conference Proceedings (OSTI)

We describe a wavelength tunable alexandrite regenerative amplifier which is used to amplify nanosecond slices from a single-frequency cw dye laser or 50-ps pulses emitted by a diode laser to energies in the 10-mJ range. The amplified 5-ns slices generated by the cw-pumped line narrowed dye laser are Fourier transform limited. The 50-ps pulses emitted by a gain-switched diode laser are amplified by more than 10 orders of magnitude in a single stage.

Harter, D.J.; Bado, P.

1988-11-01T23:59:59.000Z

65

New Yellow School Buses Harness the Sun in Wisconsin | Department...  

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

to the charge gained from the solar array, the buses also recharge their batteries using regenerative braking, just like traditional hybrid vehicles. The school bus-with the need...

66

Lithium Rechargeable Batteries  

DOE Green Energy (OSTI)

In order to obviate the deficiencies of currently used electrolytes in lithium rechargeable batteries, there is a compelling need for the development of solvent-free, highly conducting solid polymer electrolytes (SPEs). The problem will be addressed by synthesizing a new class of block copolymers and plasticizers, which will be used in the formulation of highly conducting electrolytes for lithium-ion batteries. The main objective of this Phase-I effort is to determine the efficacy and commercial prospects of new specifically designed SPEs for use in electric and hybrid electric vehicle (EV/HEV) batteries. This goal will be achieved by preparing the SPEs on a small scale with thorough analyses of their physical, chemical, thermal, mechanical and electrochemical properties. SPEs will play a key role in the formulation of next generation lithium-ion batteries and will have a major impact on the future development of EVs/HEVs and a broad range of consumer products, e.g., computers, camcorders, cell phones, cameras, and power tools.

Robert Filler, Zhong Shi and Braja Mandal

2004-10-21T23:59:59.000Z

67

Investigation of a regenerative damping concept  

E-Print Network (OSTI)

This thesis presents a justification for the study of regenerative damping, a general statement of the regenerative damping problem, and a detailed analysis of a specific proposed solution to the regenerative damping problem. Improvement in the efficiency of many physical systems is realized by the incorporation of regenerative devices, and all devices which dissipate power are candidates for investigation as regenerative systems. The viscous damper is a dissipative device which may be suitable for energy regeneration and is therefore investigated as such. Regenerative damping involves storing the power normally dissipated by a passive viscous damper. This task is accomplished by constructing a system which connects an energy storing device to the device being damped. The connecting system must efficiently transfer power from the device being damped to the storage device while simultaneously meeting the operating impedance of the storage device and producing a desired damping impedance. Many physical systems can accomplish this task, and the variable linear transmission is proposed for further investigation. Mathematical, graphical, and computer models are constructed to study the variable linear transmission. These models directly indicate the control strategies necessary to operate the device as a regenerative damper. Studies of kinematic performance and efficiency of the proposed damper indicate that a strong connection exists between the goodness of the performance of the proposed device as a damper and its efficiency. Both of these issues are directly related to the strategy used in the active control of the device.Results indicate that in its ideal state, the proposed damper exactly solves the problem of regenerative damping. For the non-ideal operation of the device, which includes the effects of system actuation dynamics, the performance looks promising but will require more investigation into optimal control strategies. Overall, the prospects for realizing regenerative damping are shown to be positive, and further investigation of this subject is encouraged.

Fodor, Michael Glenn

1993-01-01T23:59:59.000Z

68

Niobium Alloying in Grey Cast Iron for Vehicle Brake Discs  

Science Conference Proceedings (OSTI)

Presentation Title, Niobium Alloying in Grey Cast Iron for Vehicle Brake Discs. Author(s) ... Microtexture Analysis of a Hot Rolled Silicon Electric Steel · Niobium

69

Regen Powertech Pvt Ltd | Open Energy Information  

Open Energy Info (EERE)

Ltd Jump to: navigation, search Name Regen Powertech Pvt. Ltd. Place Chennai, Tamil Nadu, India Zip 600 006 Sector Wind energy Product Chennai-based wind turbine manufacturer that...

70

Simulations of Plug-in Hybrid Vehicles Using Advanced Lithium Batteries and Ultracapacitors on Various Driving Cycles  

E-Print Network (OSTI)

accept all the regenerative braking energy. This paper isaccept all the regenerative braking energy. Figure 1 showsaccepts all the regenerative braking energy. In this mode, a

Burke, Andy; Zhao, Hengbing

2010-01-01T23:59:59.000Z

71

Transportation and its Infrastructure  

E-Print Network (OSTI)

systems, store regenerative braking energy and to operate2 emissions. However, regenerative braking energy cannot beas electrical energy if regenerative braking is available (

2007-01-01T23:59:59.000Z

72

Zero-Emission Vehicle Scenario Cost Analysis Using A Fuzzy Set-Based Framework  

E-Print Network (OSTI)

and to capture regenerative braking energy, or a simplerto recapture regenerative braking energy over a modestto recapture regenerative braking energy and to meet vehicle

Lipman, Timothy Edward

1999-01-01T23:59:59.000Z

73

High power regenerative laser amplifier  

DOE Patents (OSTI)

A regenerative amplifier design capable of operating at high energy per pulse, for instance, from 20-100 Joules, at moderate repetition rates, for instance from 5-20 Hertz is provided. The laser amplifier comprises a gain medium and source of pump energy coupled with the gain medium; a Pockels cell, which rotates an incident beam in response to application of a control signal; an optical relay system defining a first relay plane near the gain medium and a second relay plane near the rotator; and a plurality of reflectors configured to define an optical path through the gain medium, optical relay and Pockels cell, such that each transit of the optical path includes at least one pass through the gain medium and only one pass through the Pockels cell. An input coupler, and an output coupler are provided, implemented by a single polarizer. A control circuit coupled to the Pockels cell generates the control signal in timed relationship with the input pulse so that the input pulse is captured by the input coupler and proceeds through at least one transit of the optical path, and then the control signal is applied to cause rotation of the pulse to a polarization reflected by the polarizer, after which the captured pulse passes through the gain medium at least once more and is reflected out of the optical path by the polarizer before passing through the rotator again to provide an amplified pulse.

Miller, John L. (Livermore, CA); Hackel, Lloyd A. (Livermore, CA); Dane, Clifford B. (Dublin, CA); Zapata, Luis E. (Livermore, CA)

1994-01-01T23:59:59.000Z

74

High power regenerative laser amplifier  

DOE Patents (OSTI)

A regenerative amplifier design capable of operating at high energy per pulse, for instance, from 20-100 Joules, at moderate repetition rates, for instance from 5-20 Hertz is provided. The laser amplifier comprises a gain medium and source of pump energy coupled with the gain medium; a Pockels cell, which rotates an incident beam in response to application of a control signal; an optical relay system defining a first relay plane near the gain medium and a second relay plane near the rotator; and a plurality of reflectors configured to define an optical path through the gain medium, optical relay and Pockels cell, such that each transit of the optical path includes at least one pass through the gain medium and only one pass through the Pockels cell. An input coupler, and an output coupler are provided, implemented by a single polarizer. A control circuit coupled to the Pockels cell generates the control signal in timed relationship with the input pulse so that the input pulse is captured by the input coupler and proceeds through at least one transit of the optical path, and then the control signal is applied to cause rotation of the pulse to a polarization reflected by the polarizer, after which the captured pulse passes through the gain medium at least once more and is reflected out of the optical path by the polarizer before passing through the rotator again to provide an amplified pulse. 7 figures.

Miller, J.L.; Hackel, L.A.; Dane, C.B.; Zapata, L.E.

1994-02-08T23:59:59.000Z

75

Regenerative fuel cell engineering - FY99  

Science Conference Proceedings (OSTI)

The authors report the work conducted by the ESA-EPE Fuel Cell Engineering Team at Los Alamos National Laboratory during FY99 on regenerative fuel cell system engineering. The work was focused on the evaluation of regenerative fuel cell system components obtained through the RAFCO program. These components included a 5 kW PEM electrolyzer, a two-cell regenerative fuel cell stack, and samples of the electrolyzer membrane, anode, and cathode. The samples of the electrolyzer membrane, anode, and cathode were analyzed to determine their structure and operating characteristics. Tests were conducted on the two-cell regenerative fuel cell stack to characterize its operation as an electrolyzer and as a fuel cell. The 5 kW PEM electrolyzer was tested in the Regenerative Fuel Cell System Test Facility. These tests served to characterize the operation of the electrolyzer and, also, to verify the operation of the newly completed test facility. Future directions for this work in regenerative fuel cell systems are discussed.

Michael A. Inbody; Rodney L. Borup; James C. Hedstrom; Jose Tafoya; Byron Morton; Lois Zook; Nicholas E. Vanderborgh

2000-01-01T23:59:59.000Z

76

Braking system for use with an arbor of a microscope  

DOE Patents (OSTI)

A balanced braking system comprising a plurality of braking assemblies located about a member to be braked. Each of the braking assemblies consists of a spring biased piston of a first material fitted into a body of a different material which has a greater contraction upon cooling than the piston material. The piston is provided with a recessed head portion over which is positioned a diaphragm and forming a space therebetween to which is connected a pressurized fluid supply. The diaphragm is controlled by the fluid in the space to contact or withdraw from the member to be braked. A cooling device causes the body within which the piston is fitted to contract more than the piston, producing a tight shrink fit therebetween. The braking system is particularly applicable for selectively braking an arbor of an electron microscope which immobilizes, for example, a vertically adjustable low temperature specimen holder during observation. The system provides balanced braking forces which can be easily removed and re-established with minimal disturbance to arbor location.

Norgren, Duane U. (Orinda, CA)

1984-01-01T23:59:59.000Z

77

Survey of rechargeable battery technology  

SciTech Connect

We have reviewed rechargeable battery technology options for a specialized application in unmanned high altitude aircraft. Consideration was given to all rechargeable battery technologies that are available commercially or might be available in the foreseeable future. The LLNL application was found to impose very demanding performance requirements which cannot be met by existing commercially available battery technologies. The most demanding requirement is for high energy density. The technology that comes closest to providing the LLNL requirements is silver-zinc, although the technology exhibits significant shortfalls in energy density, charge rate capability and cyclability. There is no battery technology available ``off-the-shelf` today that can satisfy the LLNL performance requirements. All rechargeable battery technologies with the possibility of approaching/meeting the energy density requirements were reviewed. Vendor interviews were carried out for all relevant technologies. A large number of rechargeable battery systems have been developed over the years, though a much smaller number have achieved commercial success and general availability. The theoretical energy densities for these systems are summarized. It should be noted that a generally useful ``rule-of-thumb`` is that the ratio of packaged to theoretical energy density has proven to be less than 30%, and generally less than 25%. Data developed for this project confirm the usefulness of the general rule. However, data shown for the silver-zinc (AgZn) system show a greater conversion of theoretical to practical energy density than would be expected due to the very large cell sizes considered and the unusually high density of the active materials.

1993-07-01T23:59:59.000Z

78

WIDE BAND REGENERATIVE FREQUENCY DIVIDER AND MULTIPLIER  

DOE Patents (OSTI)

A regenerative frequency divider and multiplier having wide band input characteristics is presented. The circuit produces output oscillations having frequencies related by a fixed ratio to input oscillations over a wide band of frequencies. In accomplishing this end, the divider-multiplier includes a wide band input circuit coupled by mixer means to a wide band output circuit having a pass band related by a fixed ratio to that of the input circuit. A regenerative feedback circuit derives a fixed frequency ratio feedback signal from the output circuit and applies same to the mixer means in proper phase relation to sustain fixed frequency ratio oscillations in the output circuit.

Laine, E.F.

1959-11-17T23:59:59.000Z

79

GC GUIDANCE ON ELECTRIC VEHICLE RECHARGING STATIONS  

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

ELECTRIC VEHICLE RECHARGING STATIONS Several National Laboratory contractors have asked us whether Department of Energy ("Department" or "DOE") appropriated funds may be used to...

80

Dynamic reconfiguration in sensor networks with regenerative energy sources  

Science Conference Proceedings (OSTI)

In highly power constrained sensor networks, harvesting energy from the environment makes prolonged or even perpetual execution feasible. In such energy harvesting systems, energy sources are characterized as being regenerative. Regenerative energy sources ...

Ani Nahapetian; Paolo Lombardo; Andrea Acquaviva; Luca Benini; Majid Sarrafzadeh

2007-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

ESS 2012 Peer Review - Novel Regenerative Fuel Cells based on...  

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

l R ti F l C ll b d A i E h M b f Novel Regenerative Fuel Cells based on Anion Exchange Membranes for Novel Regenerative Fuel Cells based on Anion Exchange Membranes for g g...

82

Solar powered unitized regenerative fuel cell system  

Science Conference Proceedings (OSTI)

Solar hydrogen system is a unique power system that can meet the power requirement for the energy future demand, in such a system the hydrogen used to be the energy carrier which can produced through electrolysis by using the power from the PV during ... Keywords: electrolyzer, fuel cell, hydrogen, photovoltaic, regenerative, solar hydrogen system

Salwan S. Dihrab; , Kamaruzzaman Sopian; Nowshad Amin; M. M. Alghoul; Azami Zaharim

2008-02-01T23:59:59.000Z

83

Systems approach to rechargeable batteries  

SciTech Connect

When selecting a rechargeable battery for an application, consideration must be given to the total system. Electrical load requirements, mechanical restrictions, environmental conditions, battery life, and charging must be considered to assure satisfactory battery performance. Meeting the electrical requirements involves selecting a battery that will deliver adequate voltage, run time and power. The mechanical aspects are largely a matter of resolving volume and weight. The charger must be capable of returning the battery to full charge in an allotted time. But of greater importance, the charge control method should be chosen carefully to maximize the operational life of the battery. 4 refs.

Mullersman, F.H.

1980-09-01T23:59:59.000Z

84

A Preliminary Study of Energy Recovery in Vehicles by Using Regenerative Magnetic Shock Absorbers  

DOE Green Energy (OSTI)

Road vehicles can expend a significant amount of energy in undesirable vertical motions that are induced by road bumps, and much of that is dissipated in conventional shock absorbers as they dampen the vertical motions. Presented in this paper are some of the results of a study aimed at determining the effectiveness of efficiently transforming that energy into electrical power by using optimally designed regenerative electromagnetic shock absorbers. In turn, the electrical power can be used to recharge batteries or other efficient energy storage devices (e.g., flywheels) rather than be dissipated. The results of the study are encouraging - they suggest that a significant amount of the vertical motion energy can be recovered and stored.

R. B. Goldner; P. Zerigian; J. R. Hull

2001-05-14T23:59:59.000Z

85

Assessment of the Greenhouse Gas Emission Reduction Potential of Ultra-Clean Hybrid-Electric Vehicles  

E-Print Network (OSTI)

and to recover energy during regenerative braking. Theunituse of regenerative braking. 4.3 Pulse Power Energy Storage

Burke, A.F.; Miller, M.

1997-01-01T23:59:59.000Z

86

Batteries for Plug-in Hybrid Electric Vehicles (PHEVs): Goals and the State of Technology circa 2008  

E-Print Network (OSTI)

and from regenerative braking, and passes energy to theor from regenerative braking and uses the energy in the

Axsen, Jonn; Burke, Andy; Kurani, Kenneth S

2008-01-01T23:59:59.000Z

87

Electrode Materials for Rechargeable Lithium-Ion Batteries: A...  

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

Electrode Materials for Rechargeable Lithium-Ion Batteries: A New Synthetic Approach Technology available for licensing: New high-energy cathode materials for use in rechargeable...

88

High-rate capable organic radical cathodes for lithium rechargeable...  

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

High-rate capable organic radical cathodes for lithium rechargeable batteries Title High-rate capable organic radical cathodes for lithium rechargeable batteries Publication Type...

89

GC GUIDANCE ON ELECTRIC VEHICLE RECHARGING STATIONS | Department...  

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

ELECTRIC VEHICLE RECHARGING STATIONS GC GUIDANCE ON ELECTRIC VEHICLE RECHARGING STATIONS Several National Laboratory contractors have asked whether appropriated funds may be used...

90

Rechargeable Heat Battery's Secret Revealed: Solar Energy Capture...  

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

Rechargeable Heat Battery Rechargeable Heat Battery's Secret Revealed Solar energy capture in chemical form makes it storable and transportable January 11, 2011 | Tags: Chemistry,...

91

Transformer Recharging with Alpha Channeling in Tokamaks  

SciTech Connect

Transformer recharging with lower hybrid waves in tokamaks can give low average auxiliary power if the resistivity is kept high enough during the radio frequency (rf) recharging stage. At the same time, operation in the hot ion mode via alpha channeling increases the effective fusion reactivity. This paper will address the extent to which these two large cost saving steps are compatible. __________________________________________________

N.J. Fisch

2009-12-21T23:59:59.000Z

92

Active time scheduling for rechargeable sensor networks  

Science Conference Proceedings (OSTI)

Recent progress in energy harvesting technologies made it possible to build sensor networks with rechargeable nodes which target an indefinitely long operation. In these networks, the goal of energy management is to allocate the available energy such ... Keywords: Energy harvesting, Rechargeable, Sensor network

Volodymyr Pryyma; Damla Turgut; Ladislau Bölöni

2010-03-01T23:59:59.000Z

93

Investigation of aerodynamic braking devices for wind turbine applications  

DOE Green Energy (OSTI)

This report documents the selection and preliminary design of a new aerodynamic braking system for use on the stall-regulated AWT-26/27 wind turbines. The goal was to identify and design a configuration that offered improvements over the existing tip brake used by Advanced Wind Turbines, Inc. (AWT). Although the design objectives and approach of this report are specific to aerodynamic braking of AWT-26/27 turbines, many of the issues addressed in this work are applicable to a wider class of turbines. The performance trends and design choices presented in this report should be of general use to wind turbine designers who are considering alternative aerodynamic braking methods. A literature search was combined with preliminary work on device sizing, loads and mechanical design. Candidate configurations were assessed on their potential for benefits in the areas of cost, weight, aerodynamic noise, reliability and performance under icing conditions. As a result, two configurations were identified for further study: the {open_quotes}spoiler-flap{close_quotes} and the {open_quotes}flip-tip.{close_quotes} Wind tunnel experiments were conducted at Wichita State University to evaluate the performance of the candidate aerodynamic brakes on an airfoil section representative of the AWT-26/27 blades. The wind tunnel data were used to predict the braking effectiveness and deployment characteristics of the candidate devices for a wide range of design parameters. The evaluation was iterative, with mechanical design and structural analysis being conducted in parallel with the braking performance studies. The preliminary estimate of the spoiler-flap system cost was $150 less than the production AWT-26/27 tip vanes. This represents a reduction of approximately 5 % in the cost of the aerodynamic braking system. In view of the preliminary nature of the design, it would be prudent to plan for contingencies in both cost and weight.

Griffin, D.A. [R. Lynette & Associates, Seattle, WA (United States)

1997-04-01T23:59:59.000Z

94

Electric Vehicles: Performances, Life Cycle Costs, Emissions, and Recharging Requirements  

E-Print Network (OSTI)

energy from the battery ter- most common, produces results close to the av- minals (including regenerative

DeLuchi, Mark A.; Wang, Quanlu; Sperling, Daniel

1989-01-01T23:59:59.000Z

95

Maass Regenerative Energien GmbH founders | Open Energy Information  

Open Energy Info (EERE)

Maass Regenerative Energien GmbH founders Maass Regenerative Energien GmbH founders Jump to: navigation, search Name Maass Regenerative Energien GmbH founders Place Wesel, Germany Sector Solar Product Founders of the Wesel-based solar project company. References Maass Regenerative Energien GmbH founders[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Maass Regenerative Energien GmbH founders is a company located in Wesel, Germany . References ↑ "[ Maass Regenerative Energien GmbH founders]" Retrieved from "http://en.openei.org/w/index.php?title=Maass_Regenerative_Energien_GmbH_founders&oldid=348555" Categories: Clean Energy Organizations Companies Organizations Stubs What links here

96

Rechargeable lithium-ion cell  

DOE Patents (OSTI)

The invention relates to a rechargeable lithium-ion cell, a method for its manufacture, and its application. The cell is distinguished by the fact that it has a metallic housing (21) which is electrically insulated internally by two half shells (15), which cover electrode plates (8) and main output tabs (7) and are composed of a non-conductive material, where the metallic housing is electrically insulated externally by means of an insulation coating. The cell also has a bursting membrane (4) which, in its normal position, is located above the electrolyte level of the cell (1). In addition, the cell has a twisting protection (6) which extends over the entire surface of the cover (2) and provides centering and assembly functions for the electrode package, which comprises the electrode plates (8).

Bechtold, Dieter (Bad Vilbel, DE); Bartke, Dietrich (Kelkheim, DE); Kramer, Peter (Konigstein, DE); Kretzschmar, Reiner (Kelkheim, DE); Vollbert, Jurgen (Hattersheim, DE)

1999-01-01T23:59:59.000Z

97

Lithium ion rechargeable systems studies  

Science Conference Proceedings (OSTI)

Lithium ion systems, although relatively new, have attracted much interest worldwide. Their high energy density, long cycle life and relative safety, compared with metallic lithium rechargeable systems, make them prime candidates for powering portable electronic equipment. Although lithium ion cells are presently used in a few consumer devices, e.g., portable phones, camcorders, and laptop computers, there is room for considerable improvement in their performance. Specific areas that need to be addressed include: (1) carbon anode--increase reversible capacity, and minimize passivation; (2) cathode--extend cycle life, improve rate capability, and increase capacity. There are several programs ongoing at Sandia National Laboratories which are investigating means of achieving the stated objectives in these specific areas. This paper will review these programs.

Levy, S.C.; Lasasse, R.R.; Cygan, R.T.; Voigt, J.A.

1995-02-01T23:59:59.000Z

98

Low-temperature thermally regenerative electrochemical system  

DOE Patents (OSTI)

A thermally regenerative electrochemical system is described including an electrochemical cell with two water-based electrolytes separated by an ion exchange membrane, at least one of the electrolytes containing a complexing agent and a salt of a multivalent metal whose respective order of potentials for a pair of its redox couples is reversible by a change in the amount of the ocmplexing agent in the electrolyte, the complexing agent being removable by distillation to cause the reversal.

Loutfy, R.O.; Brown, A.P.; Yao, N.P.

1982-04-21T23:59:59.000Z

99

A solar regenerative thermoelectrochemical converter (RTEC)  

DOE Green Energy (OSTI)

This is an executive summary of a final subcontract report that describes the successful completion of a closed-loop demonstration of a regenerative thermoelectromechanical device using solar heat input for the production of electricity. The full report, which contains a detailed description of the two-year effort, is currently subject to a government secrecy order which precludes public release of the information. Copies of the full report will be made available for general release whenever the secrecy order is lifted.

Townsend, C.W.; McHardy, J. (Hughes Aircraft Co., El Segundo, CA (United States))

1992-02-01T23:59:59.000Z

100

Shannon capacity of nonlinear regenerative channels  

E-Print Network (OSTI)

We compute Shannon capacity of nonlinear channels with regenerative elements. Conditions are found under which capacity of such nonlinear channels is higher than the Shannon capacity of the classical linear additive white Gaussian noise channel. We develop a general scheme for designing the proposed channels and apply it to the particular nonlinear sine-mapping. The upper bound for regeneration efficiency is found and the asymptotic behavior of the capacity in the saturation regime is derived.

Sorokina, M A

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Design of an AUV recharging system  

E-Print Network (OSTI)

The utility of present Autonomous Underwater Vehicles (AUVs) is limited by their on-board energy storage capability. Research indicates that rechargeable batteries will continue to be the AUV power source of choice for at ...

Gish, Lynn Andrew

2004-01-01T23:59:59.000Z

102

Nanostructured, Rechargeable Solid-State Composite Batteries  

Research on all-solid-state rechargeable lithium batteries has increased considerably in recent years due to raised concerns relating to safety hazards such as solvent leakage and flammability of liquid electrolytes used for commercial lithium-ion ...

103

Numerical simulation of microwave absorption of regenerative heat ...  

Science Conference Proceedings (OSTI)

The regenerative heat exchanger has a good absorption when the mullite refractory .... Point Alloys and Refractory Compounds with Its Own Chemical Energy.

104

Computational Fluid Dynamic Simulations of a Regenerative Process...  

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

Fluid Dynamic Simulations of a Regenerative Process for Carbon Dioxide Capture in Advanced Gasification Based Power Systems Background The Department of Energy (DOE) National...

105

Gearing Up for Electric Cars  

E-Print Network (OSTI)

half the energy lost during braking (regenerative braking),regenerative braking energ~ durmg de- celeration A fl)wheel stores energy

Sperling, Daniel

1994-01-01T23:59:59.000Z

106

Multiple excitation regenerative amplifier inertial confinement system  

DOE Patents (OSTI)

The invention relates to apparatus and methods for producing high intensity laser radiation generation which is achieved through an optical amplifier-storage ring design. One or two synchronized, counterpropagating laser pulses are injected into a regenerative amplifier cavity and amplified by gain media which are pumped repetitively by electrical or optical means. The gain media excitation pulses are tailored to efficiently amplify the laser pulses during each transit. After the laser pulses have been amplified to the desired intensity level, they are either switched out of the cavity by some switch means, as for example an electro-optical device, for any well known laser end uses, or a target means may be injected into the regenerative amplifier cavity in such a way as to intercept simultaneously the counterpropagating laser pulses. One such well known end uses to which this invention is intended is for production of high density and temperature plasmas suitable for generating neutrons, ions and x-rays and for studying matter heated by high intensity laser radiation. 11 figs.

George, V.E.; Haas, R.A.; Krupke, W.F.; Schlitt, L.G.

1980-05-27T23:59:59.000Z

107

Multiple excitation regenerative amplifier inertial confinement system  

DOE Patents (OSTI)

The invention relates to apparatus and methods for producing high intensity laser radiation generation which is achieved through an optical amplifier-storage ring design. One or two synchronized, counterpropagating laser pulses are injected into a regenerative amplifier cavity and amplified by gain media which are pumped repetitively by electrical or optical means. The gain media excitation pulses are tailored to efficiently amplify the laser pulses during each transit. After the laser pulses have been amplified to the desired intensity level, they are either switched out of the cavity by some switch means, as for example an electro-optical device, for any well known laser end uses, or a target means may be injected into the regenerative amplifier cavity in such a way as to intercept simultaneously the counterpropagating laser pulses. One such well known end uses to which this invention is intended is for production of high density and temperature plasmas suitable for generating neutrons, ions and x-rays and for studying matter heated by high intensity laser radiation.

George, Victor E. (Livermore, CA); Haas, Roger A. (Pleasanton, CA); Krupke, William F. (Pleasanton, CA); Schlitt, Leland G. (Livermore, CA)

1980-01-01T23:59:59.000Z

108

Application of Regenerative Combustion Technology on Reheating Furnace in PISCO  

Science Conference Proceedings (OSTI)

The key features of the regenerative combustion technology were introduced and its application in the reheating furnace of Rail & Beam plant of PISCO£¨Panzhihua Iron & Steel Co.£©was discussed£®Comparedwith the traditional combustion technology£¬the ... Keywords: Regenerative Style, Combustion Technology, Reheating Furnace, Energy Conservation

Chen Yong; Pan Hong; Xue Nianfu

2011-02-01T23:59:59.000Z

109

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

E-Print Network (OSTI)

the vehmle allows regenerative brakmg energy to be captured,and to capture regenerative braking energy, or a simplerto recapture regenerative braking energy. ¯ motor-asstst

Sperling, Daniel; Lipman, Timothy

2003-01-01T23:59:59.000Z

110

Optimum Performance of Direct Hydrogen Hybrid Fuel Cell Vehicles  

E-Print Network (OSTI)

such that regenerative braking energy can be efficientlyto recovering energy by regenerative braking. This increaseis to recover energy while decelerating through regenerative

Zhao, Hengbing; Burke, Andy

2009-01-01T23:59:59.000Z

111

Oxygen-Diffused Titanium as a Candidate Brake Rotor Material  

SciTech Connect

Titanium alloys are one of several candidate materials for the next generation of truck disk brake rotors. Despite their advantages of lightweight relative to cast iron and good strength and corrosion resistance, titanium alloys are unlikely to be satisfactory brake rotor materials unless their friction and wear behavior can be significantly improved. In this study, a surface engineering process oxygen diffusion was applied to titanium rotors and has shown very encouraging results. The oxygen diffused Ti-6Al-4V (OD-Ti) was tested on a sub-scale brake tester against a flat block of commercial brake lining material and benchmarked against several other Ti-based materials, including untreated Ti-6Al-4V, ceramic particle-reinforced Ti composites (MMCs), and a thermal-spray-coated Ti alloy. With respect to friction, the OD-Ti outperformed all other candidate materials under the imposed test conditions with the friction coefficient remaining within a desirable range of 0.35-0.50, even under the harshest conditions when the disk surface temperature reached nearly 600 ?C. In addition, the OD-Ti showed significantly improved wear-resistance over the non-treated one and was even better than the Ti-based composite materials.

Qu, Jun [ORNL; Blau, Peter Julian [ORNL; Jolly, Brian C [ORNL

2009-01-01T23:59:59.000Z

112

Battery driven vehicle and recharging system  

SciTech Connect

A battery-driven car which has an electrical system including a minimum number of electric storage batteries as the power source, a high-voltage converter with a high-voltage capacitor bank for driving a direct current impulse motor combined with a generator for supplying current to motor/generator sets respectively integrated with the wheels of the vehicle to drive the same or for recharging the batteries in accordance with a microprocessor control system, the wheel-actuated generators providing recharging current for the batteries whenever the motor component is not being energized and in addition, said electrical system also including an air-driven turbine generator component for recharging the batteries when the vehicle reaches a predetermined speed in accordance with the microprocessor controls.

Arbisi, D. S.

1985-02-12T23:59:59.000Z

113

New Regenerative Cycle for Vapor Compression Refrigeration  

Office of Scientific and Technical Information (OSTI)

SCIENTIFIC REPORT SCIENTIFIC REPORT Title Page Project Title: New Regenerative Cycle for Vapor Compression Refrigeration DOE Award Number: DE-FG36-04GO14327 Document Title: Final Scientific Report Period Covered by Report: September 30, 2004 to September 30, 2005 Name and Address of Recipient Organization: Magnetic Development, Inc., 68 Winterhill Road, Madison, CT 06443, phone: 203-214-7247, fax: 203-421-7948, e-mail: mjb1000@aol.com Contact Information: Mark J. Bergander, Ph.D., P.E., Principal Investigator, phone: 203-214-7247, fax: 203-421-7948, e-mail: mjb1000@aol.com Project Objective (as stated in the proposal): The main objective of this project is to confirm on a well-instrumented prototype the theoretically derived claims of higher efficiency and coefficient

114

Electrically and Hydraulically Rechargeable Zinc-air Battery  

A secondary zinc air battery, which can be either eletrically or hydraulically recharged, is provided with an inventive metal ...

115

Recharging Energy Storage Devices and/or Supplying Electric Power  

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

116

Heavy and Overweight Vehicle Brake Testing: Five-Axle Combination Tractor-Flatbed Final Report  

Science Conference Proceedings (OSTI)

The Federal Motor Carrier Safety Administration, in coordination with the Federal Highway Administration, sponsored the Heavy and Overweight Vehicle Brake Testing (HOVBT) program in order to provide information about the effect of gross vehicle weight (GVW) on braking performance. Because the Federal Motor Carrier Safety Regulations limit the number of braking system defects that may exist for a vehicle to be allowed to operate on the roadways, the examination of the effect of brake defects on brake performance for increased loads is also relevant. The HOVBT program seeks to provide relevant information to policy makers responsible for establishing load limits, beginning with providing test data for a combination tractor/trailer. This testing was conducted on a five-axle combination vehicle with tractor brakes meeting the Reduced Stopping Distance requirement rulemaking. This report provides a summary of the testing activities, the results of various analyses of the data, and recommendations for future research. Following a complete brake rebuild, instrumentation, and brake burnish, stopping tests were performed from 20 and 40 mph with various brake application pressures (15 psi, 25 psi, 35 psi, 45 psi, 55 psi, and full system pressure). These tests were conducted for various brake conditions at the following GVWs: 60,000, 80,000, 91,000, 97,000, 106,000, and 116,000 lb. The 80,000-lb GVWs included both balanced and unbalanced loads. The condition of the braking system was also varied. To introduce these defects, brakes (none, forward drive axle, or rear trailer axle) were made inoperative. In addition to the stopping tests, performance-based brake tests were conducted for the various loading and brake conditions. Analysis of the stopping test data showed the stopping distance to increase with load (as expected) and also showed that more braking force was generated by the drive axle brakes than the trailer axle brakes. The constant-pressure stopping test data revealed a linear relationship between brake application pressure and was used to develop an algorithm to normalize stopping data for weight and initial speed.

Lascurain, Mary Beth [ORNL] ORNL; Capps, Gary J [ORNL] ORNL; Franzese, Oscar [ORNL] ORNL

2013-10-01T23:59:59.000Z

117

Rechargeable solid polymer electrolyte battery cell  

SciTech Connect

A rechargeable battery cell comprising first and second electrodes sandwiching a solid polymer electrolyte comprising a layer of a polymer blend of a highly conductive polymer and a solid polymer electrolyte adjacent said polymer blend and a layer of dry solid polymer electrolyte adjacent said layer of polymer blend and said second electrode.

Skotheim, Terji (East Patchoque, NY)

1985-01-01T23:59:59.000Z

118

A New Absorption Cycle: The Single-Effect Regenerative Absoprtion Refrigeration Cycle  

E-Print Network (OSTI)

REGENERATIVE ABSORPTION REFRIGERATION CYCLE ABSTRACT A new absorption cycle , using heat as the energy

Dao, K.

2011-01-01T23:59:59.000Z

119

New Regenerative Cycle for Vapor Compression Refrigeration  

SciTech Connect

The main objective of this project is to confirm on a well-instrumented prototype the theoretically derived claims of higher efficiency and coefficient of performance for geothermal heat pumps based on a new regenerative thermodynamic cycle as comparing to existing technology. In order to demonstrate the improved performance of the prototype, it will be compared to published parameters of commercially available geothermal heat pumps manufactured by US and foreign companies. Other objectives are to optimize the design parameters and to determine the economic viability of the new technology. Background (as stated in the proposal): The proposed technology closely relates to EERE mission by improving energy efficiency, bringing clean, reliable and affordable heating and cooling to the residential and commercial buildings and reducing greenhouse gases emission. It can provide the same amount of heating and cooling with considerably less use of electrical energy and consequently has a potential of reducing our nations dependence on foreign oil. The theoretical basis for the proposed thermodynamic cycle was previously developed and was originally called a dynamic equilibrium method. This theory considers the dynamic equations of state of the working fluid and proposes the methods for modification of T-S trajectories of adiabatic transformation by changing dynamic properties of gas, such as flow rate, speed and acceleration. The substance of this proposal is a thermodynamic cycle characterized by the regenerative use of the potential energy of two-phase flow expansion, which in traditional systems is lost in expansion valves. The essential new features of the process are: (1) The application of two-step throttling of the working fluid and two-step compression of its vapor phase. (2) Use of a compressor as the initial step compression and a jet device as a second step, where throttling and compression are combined. (3) Controlled ratio of a working fluid at the first and second step of compression. In the proposed system, the compressor compresses the vapor only to 50-60% of the final pressure, while the additional compression is provided by a jet device using internal potential energy of the working fluid flow. Therefore, the amount of mechanical energy required by a compressor is significantly reduced, resulting in the increase of efficiency (either COP or EER). The novelty of the cycle is in the equipment and in the way the multi-staging is accomplished. The anticipated result will be a new refrigeration system that requires less energy to accomplish a cooling task. The application of this technology will be for more efficient designs of: (1) Industrial chillers, (2) Refrigeration plants, (3) Heat pumps, (4) Gas Liquefaction plants, (5) Cryogenic systems.

Mark J. Bergander

2005-08-29T23:59:59.000Z

120

Energy Efficiency in Heavy Vehicle Tires, Drivetrains, and Braking Systems  

DOE Green Energy (OSTI)

This document was prepared to support the primary goals of the Department of Energy, Office of Heavy Vehicle Technologies. These were recently stated as follows: ''Develop by 2004 the enabling technologies for a class 7-8 truck with a fuel efficiency of 10 mpg (at 65 mph) which will meet prevailing emission standards. For Class 3-6 trucks operating on an urban driving cycle, develop by 2004 commercially viable vehicles that achieve at least double the fuel economy of comparable current vehicles (1999), and as a research goal, reduce criteria pollutants to 30% below EPA standards. Develop by 2004 the diesel engine enabling technologies to support large-scale industry dieselization of Class 1 and 2 trucks, achieving a 35 % fuel efficiency improvement over comparable gasoline-fueled trucks, while meeting applicable emissions standards.'' The enabling technologies for improving the fuel efficiency of trucks, include not only engine technologies but also technologies involved with lowering the rolling resistance of tires, reducing vehicle aerodynamic drag, improving thermal management, and reducing parasitic frictional losses in drive train components. Opportunities also exist for making better use of the energy that might ordinarily be dissipated during vehicle braking. Braking systems must be included in this evaluation since safety in truck operations is vital, and braking requirements are greater for vehicles having lowered resistance to rolling. The Office of Heavy Vehicle Technologies has initiated a program to improve the aerodynamics of heavy vehicles through wind tunnel testing, computational modeling, and on-road evaluations. That activity is described in a separate multi-year plan; therefore, emphasis in this document will be on tires, drive trains, and braking systems. Recent, dramatic fluctuations in diesel fuel prices have emphasized the importance of effecting savings in truck fuel economy by implementing new component designs and materials.

Peter J. Blau

2000-04-26T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Biocompatibility and toxicity of magnetic nanoparticles in regenerative medicine  

Science Conference Proceedings (OSTI)

Regenerative medicine is a pioneering field aimed at restoring and regenerating the function of damaged cells, organs and tissues in order to establish normal function. It demands the cross communication of disciplines to develop effective therapeutic ...

H. Markides; M. Rotherham; A. J. El Haj

2012-01-01T23:59:59.000Z

122

High power, high beam quality regenerative amplifier  

DOE Patents (OSTI)

A regenerative laser amplifier system generates high peak power and high energy per pulse output beams enabling generation of X-rays used in X-ray lithography for manufacturing integrated circuits. The laser amplifier includes a ring shaped optical path with a limited number of components including a polarizer, a passive 90 degree phase rotator, a plurality of mirrors, a relay telescope, and a gain medium, the components being placed close to the image plane of the relay telescope to reduce diffraction or phase perturbations in order to limit high peak intensity spiking. In the ring, the beam makes two passes through the gain medium for each transit of the optical path to increase the amplifier gain to loss ratio. A beam input into the ring makes two passes around the ring, is diverted into an SBS phase conjugator and proceeds out of the SBS phase conjugator back through the ring in an equal but opposite direction for two passes, further reducing phase perturbations. A master oscillator inputs the beam through an isolation cell (Faraday or Pockels) which transmits the beam into the ring without polarization rotation. The isolation cell rotates polarization only in beams proceeding out of the ring to direct the beams out of the amplifier. The diffraction limited quality of the input beam is preserved in the amplifier so that a high power output beam having nearly the same diffraction limited quality is produced.

Hackel, Lloyd A. (Livermore, CA); Dane, Clifford B. (Livermore, CA)

1993-01-01T23:59:59.000Z

123

High power, high beam quality regenerative amplifier  

DOE Patents (OSTI)

A regenerative laser amplifier system generates high peak power and high energy per pulse output beams enabling generation of X-rays used in X-ray lithography for manufacturing integrated circuits. The laser amplifier includes a ring shaped optical path with a limited number of components including a polarizer, a passive 90 degree phase rotator, a plurality of mirrors, a relay telescope, and a gain medium, the components being placed close to the image plane of the relay telescope to reduce diffraction or phase perturbations in order to limit high peak intensity spiking. In the ring, the beam makes two passes through the gain medium for each transit of the optical path to increase the amplifier gain to loss ratio. A beam input into the ring makes two passes around the ring, is diverted into an SBS phase conjugator and proceeds out of the SBS phase conjugator back through the ring in an equal but opposite direction for two passes, further reducing phase perturbations. A master oscillator inputs the beam through an isolation cell (Faraday or Pockels) which transmits the beam into the ring without polarization rotation. The isolation cell rotates polarization only in beams proceeding out of the ring to direct the beams out of the amplifier. The diffraction limited quality of the input beam is preserved in the amplifier so that a high power output beam having nearly the same diffraction limited quality is produced.

Hackel, L.A.; Dane, C.B.

1993-08-24T23:59:59.000Z

124

Dynamic reconfiguration in sensor networks with regenerative energy sources  

E-Print Network (OSTI)

In highly power constrained sensor networks, harvesting energy from the environment makes prolonged or even perpetual execution feasible. In such energy harvesting systems, energy sources are characterized as being regenerative. Regenerative energy sources fundamentally change the problem of power scheduling for embedded devices. Instead of the problem being one of maximizing the lifetime of the system given a total amount of energy, as in traditional battery powered devices, the problem becomes one of preventing energy depletion at any given time. Coupling relatively computationally intensive applications, such as video processing applications, with the constrained FPGAs that are feasible on power constrained embedded systems, makes dynamic reconfiguration essential. It provides the speed comparable to a hardware implementation, but it also allows the dynamic reconfiguration to meet the multiple application needs of the system. Different applications can be loaded on the FPGA, as the system’s needs change over time. The problem becomes how to schedule the dynamic reconfiguration to appropriately make use of the regenerative energy source, to ensure the proper availability of energy for the system over time. In this paper, we present a methodology for carrying out dynamic reconfiguration for regenerative energy sources, based on statistical analysis of tasks and supply energy. The approach is evaluated through extensive simulations. Additionally, we have evaluated our implementation on our regenerative energy, dynamically reconfigurable prototype, known as the MicrelEye. Our approach is shown to miss 57.7 % less deadlines on average than the current approach for reconfiguration with regenerative energy sources. 1.

Ani Nahapetian; Paolo Lombardo; Andrea Acquaviva; Luca Benini; Majid Sarrafzadeh

2007-01-01T23:59:59.000Z

125

Brake rotor design and comparison using finite element analysis : an investigation in topology optimization.  

E-Print Network (OSTI)

??Disc brake technology used for mountain bikes, and mountain bike technology in general, has improved significantly as the sport of mountain biking has evolved. Disc… (more)

Domond, Kenneth

2010-01-01T23:59:59.000Z

126

Numerical Simulation of Brake Discs of CRH3 High-Speed Trains ...  

Science Conference Proceedings (OSTI)

... the research object?the course of emergency brake was simulated by ANSYS. .... Energy X-Ray Diffraction Microscopy Studies of Bulk Polycrystal Responses.

127

Rechargeable Batteries, Photochromics, Electrochemical Lithography: From  

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

Rechargeable Batteries, Photochromics, Electrochemical Lithography: From Rechargeable Batteries, Photochromics, Electrochemical Lithography: From Interfacial Studies to Practical Applications Speaker(s): Robert Kostecki Date: January 11, 2001 - 12:00pm Location: Bldg 90 Seminar Host/Point of Contact: Satkartar K. Kinney The constantly growing power requirements of portable electronic devices and the need for high-power batteries for electric vehicles have created a strong demand for new batteries or substantial improvements of existing ones. Fundamental problems associated with complex interfacial processes in batteries must be resolved to enhance battery performance and lifetime. An overview of the principles of electrode-electrolyte interfacial studies, experimental methods, recent results, and potential applications will be presented. Advanced instrumental techniques and

128

Inorganic rechargeable non-aqueous cell  

DOE Patents (OSTI)

A totally inorganic non-aqueous rechargeable cell having an alkali or alkaline earth metal anode such as of lithium, a sulfur dioxide containing electrolyte and a discharging metal halide cathode, such as of CuCl.sub.2, CuBr.sub.2 and the like with said metal halide being substantially totally insoluble in SO.sub.2 and admixed with a conductive carbon material.

Bowden, William L. (Nashua, NH); Dey, Arabinda N. (Needham, MA)

1985-05-07T23:59:59.000Z

129

DOE Issues Guidance on Electric Vehicle Recharging Stations | Department of  

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

Electric Vehicle Recharging Stations Electric Vehicle Recharging Stations DOE Issues Guidance on Electric Vehicle Recharging Stations September 6, 2011 - 4:28pm Addthis The U.S. Department of Energy recently issued guidance to its national laboratory management and operating (M&O) contractors on the installation and operation of electric vehicle recharging stations at lab facilities. The guidance explains that lab contractors wishing to install electric vehicle recharging stations or make such stations available to employees and visitors have several options. Lab contractors may install such stations and seek reimbursement from the Department for their use to the extent such installation or use is reasonably required to meet fleet vehicle or demonstration project needs. In addition, lab contractors may install electric vehicle recharging

130

Tachyon cosmology, supernovae data, and the big brake singularity  

SciTech Connect

We compare the existing observational data on type Ia supernovae with the evolutions of the Universe predicted by a one-parameter family of tachyon models which we have introduced recently [Phys. Rev. D 69, 123512 (2004)]. Among the set of the trajectories of the model which are compatible with the data there is a consistent subset for which the Universe ends up in a new type of soft cosmological singularity dubbed big brake. This opens up yet another scenario for the future history of the Universe besides the one predicted by the standard {lambda}CDM model.

Keresztes, Z.; Gergely, L. A.; Gorini, V.; Moschella, U.; Kamenshchik, A. Yu. [Department of Theoretical Physics, University of Szeged, Tisza Lajos krt 84-86, Szeged 6720 (Hungary); Department of Experimental Physics, University of Szeged, Dom Ter 9, Szeged 6720 (Hungary); Department of Theoretical Physics, University of Szeged, Tisza Lajos krt 84-86, Szeged 6720 (Hungary); Department of Experimental Physics, University of Szeged, Dom Ter 9, Szeged 6720 (Hungary); Department of Applied Science, London South Bank University, 103 Borough Road, London SE1 OAA (United Kingdom); Dipartimento di Scienze Fisiche e Mathematiche, Universita dell'Insubria, Via Valleggio 11, 22100 Como (Italy); INFN, sezione di Milano, Via Celoria 16, 20133 Milano (Italy); Dipartimento di Fisica and INFN, via Irnerio 46, 40126 Bologna (Italy); L. D. Landau Institute for Theoretical Physics, Russian Academy of Sciences, Kosygin street 2, 119334 Moscow (Russian Federation)

2009-04-15T23:59:59.000Z

131

Shale recharge and production behavior of geopressured reservoirs  

DOE Green Energy (OSTI)

The reservoir simulator MUSHRM was used to study the conditions under which significant shale recharge may be expected. The calculations presented herein show that shale recharge is a strong function of the vertical shale permeability but is not greatly influenced by the shale compressibility. Significant shale recharge will occur only if the vertical shale permeability is at least of the order of 0.01 ..mu..d.

Garg, S.K.

1980-04-01T23:59:59.000Z

132

Dual-channel Haptic Synthesis of Viscoelastic Tissue Properties using Programmable Eddy Current Brakes  

Science Conference Proceedings (OSTI)

We describe a novel method for haptic synthesis of viscoelastic responses which employs a dual-channel haptic interface. It has motors that generate torque independently of velocity and brakes that generate viscous torque independently of position. ... Keywords: eddy current brakes, haptic simulation, viscoelastic simulation

Andrew H. C. Gosline; Vincent Hayward

2009-10-01T23:59:59.000Z

133

Operation Pattern Recognition and Control for Super Capacitor Braking Energy Regeneration System of Micro EV  

Science Conference Proceedings (OSTI)

Super capacitor has some advantages of high charge-discharge rate, long life, simple structure and reliable performance, and it is especially suitable as braking energy renewable energy storage device for electric vehicle and hybrid electric vehicle. ... Keywords: Super capacitor, braking energy regeneration, micro EV, pattern recognition and control

Jinyu Qu; Liyan Liang; Zhongyu Yang

2009-12-01T23:59:59.000Z

134

Polymer Electrolytes for Rechargeable Lithium/Sulfur Batteries.  

E-Print Network (OSTI)

??With the rapid development of portable electronics, hybrid-electric and electric cars, there is great interest in utilization of sulfur as cathodes for rechargeable lithium batteries.… (more)

Zhao, Yan

2013-01-01T23:59:59.000Z

135

How use nanostructured materials effectively in rechargeable lithium ...  

Science Conference Proceedings (OSTI)

Presentation Title, How use nanostructured materials effectively in rechargeable lithium/sulfur battery. Author(s), Sheng Shui Zhang. On-Site Speaker (Planned) ...

136

Structural micro-porous carbon anode for rechargeable lithium ...  

A secondary battery having a rechargeable lithium-containing anode, a cathode and a separator positioned between the cathode and anode with an organic ...

137

Composite Electrodes for Rechargeable Llithium-Ion Batteries  

Superior cost and safety features over state-of-the-art LiCoO ... Composite Electrodes for Rechargeable Lithium-ion Batteries June 2012 cse-6677082 ...

138

Electrolyte additive for lithium rechargeable organic electrolyte battery  

DOE Patents (OSTI)

A large excess of lithium iodide in solution is used as an electrolyte adive to provide overcharge protection for a lithium rechargeable organic electrolyte battery.

Behl, Wishvender K. (Ocean, NJ); Chin, Der-Tau (Winthrop, NY)

1989-01-01T23:59:59.000Z

139

Microsoft PowerPoint - Real-Time Dynamic Brake Assessment poster.ppt [Compatibility Mode]  

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

Dynamic Brake Assessment Dynamic Brake Assessment Purpose Conduct a proof-of-concept test to examine the feasibility of developing an on-board system to assess a vehicle's ability to stop based on typical low-pressure in-service braking events. Partnerships H.T. Hackney Company MGM Brakes Overview Funded through the Federal Motor Carrier Safety Administration's Vehicle and Roadside Operations Division Concept stemming from on the Department of Energy's Medium Truck Duty Cycle research as well as previous research conducted for the National Highway Transportation Safety Administration. Signals to be collected Real-time brake application pressure Vehicle speed and acceleration GPS location and grade information Vehicle weight (current load) Engine parameters such as RPM and torque To be conducted October 2010 -

140

Regenerative Energie Systeme RegEnSys | Open Energy Information  

Open Energy Info (EERE)

Regenerative Energie Systeme RegEnSys Regenerative Energie Systeme RegEnSys Jump to: navigation, search Name Regenerative Energie Systeme (RegEnSys) Place Frankenthal, Rhineland-Palatinate, Germany Zip 67227 Sector Solar Product Sale and installation of solar (thermal and PV) and ventilation systems. Coordinates 51.131202°, 14.106809° 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":51.131202,"lon":14.106809,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Regenerative pulse amplification in the 10-kHz range  

Science Conference Proceedings (OSTI)

A continuously pumped Nd:YLF regenerative amplifier has been developed that can amplify 40-psec pulses at a repetition rate of greater than 10 kHz, with an average power in excess of 5 W. Pulse energies are as high as 2.0 mJ at 3 kHz and 640 {mu}J at 10.5 kHz. The limitation on the amplifier repetition rate that is associated with piezoelectric ringing in LiNbO{sub 3} electro-optics has been overcome by using short-pulsed electric fields (10 nsec) and proper acoustic damping. Regenerative pulse amplification, limited in repetition only by the pump rate of the gain medium, has been achieved. The high repetition rate in regenerative pulse amplification made possible by this development should prove important for signal-processing considerations in a wide variety of pulse-amplification applications.

Wang, X.D.; Basseras, P.; Miller, R.D. (Department of Chemistry, University of Rochester, Rochester, NY (USA)); Sweetser, J.; Walmsley, I.A. (The Institute of Optics, The University of Rochester, Rochester, NY (USA))

1990-08-01T23:59:59.000Z

142

Wind turbine trailing-edge aerodynamic brake design  

DOE Green Energy (OSTI)

This report describes the design of a centrifugally actuated aerodynamic-overspeed device for a horizontal-axis wind turbine. The device will meet the following criteria; (1) It will be effective for airfoil angles of attack 0{degrees} to 45{degrees}. (2) It will be stowed inside the blade profile prior to deployment. (3) It will be capable of offsetting the positive torque produced by the overall blade. (4) Hinge moments will be minimized to lower actuator loads and cost. (5) It will be evaluated as a potential power modulating active rotor-control system. A literature review of aerodynamic braking devices was conducted. Information from the literature review was used to conceptualize the most effective devices for subsequent testing and design. Wind-tunnel test data for several braking devices are presented in this report. Using the data for the most promising configuration, a preliminary design was developed for a MICON 65/13 wind turbine with Phoenix 7.9-m rotor blades.

Quandt, G.

1996-01-01T23:59:59.000Z

143

Ignition feedback regenerative free electron laser (FEL) amplifier  

Science Conference Proceedings (OSTI)

An ignition feedback regenerative amplifier consists of an injector, a linear accelerator with energy recovery, and a high-gain free electron laser amplifier. A fraction of the free electron laser output is coupled to the input to operate the free electron laser in the regenerative mode. A mode filter in this loop prevents run away instability. Another fraction of the output, after suitable frequency up conversion, is used to drive the photocathode. An external laser is provided to start up both the amplifier and the injector, thus igniting the system.

Kim, Kwang-Je (Burr Ridge, IL); Zholents, Alexander (Walnut Creek, CA); Zolotorev, Max (Oakland, CA)

2001-01-01T23:59:59.000Z

144

Thin-film Rechargeable Lithium Batteries  

DOE R&D Accomplishments (OSTI)

Thin film rechargeable lithium batteries using ceramic electrolyte and cathode materials have been fabricated by physical deposition techniques. The lithium phosphorous oxynitride electrolyte has exceptional electrochemical stability and a good lithium conductivity. The lithium insertion reaction of several different intercalation materials, amorphous V{sub 2}O{sub 5}, amorphous LiMn{sub 2}O{sub 4}, and crystalline LiMn{sub 2}O{sub 4} films, have been investigated using the completed cathode/electrolyte/lithium thin film battery.

Dudney, N. J.; Bates, J. B.; Lubben, D.

1995-06-00T23:59:59.000Z

145

Thin-film rechargeable lithium batteries  

SciTech Connect

Thin-film rechargeable lithium batteries using ceramic electrolyte and cathode materials have been fabricated by physical deposition techniques. The lithium phosphorous oxynitride electrolyte has exceptional electrochemical stability and a good lithium conductivity. The lithium insertion reaction of several different intercalation materials, amorphous V{sub 2}O{sub 5}, amorphous LiMn{sub 2}O{sub 4}, and crystalline LiMn{sub 2}O{sub 4} films, have been investigated using the completed cathode/electrolyte/lithium thin-film battery.

Dudney, N.J.; Bates, J.B.; Lubben, D. [Oak Ridge National Lab., TN (United States). Solid State Div.

1995-06-01T23:59:59.000Z

146

Design of Thermal Power Generation Device for Vehicle Recharging  

Science Conference Proceedings (OSTI)

With thermal power generation as the basis, vehicle heat sources (such as engine and exhaust pipe) as the carrier, and AT89C52 as the control center, this paper has designed a thermal power generation device for vehicle recharging. This device consists ... Keywords: thermal power generation, power supply for recharging, vehicle devices, design

Hong Fang

2012-07-01T23:59:59.000Z

147

Electric Vehicles: Performance, Life-Cycle Costs, Emissions, and Recharging Requirements  

E-Print Network (OSTI)

energy from the battery ter- most common, produces results close to the av- minals (including regenerative

DeLuchi, Mark A.; Wang, Quanlu; Sperling, Daniel

1989-01-01T23:59:59.000Z

148

Argonne National Laboratory 9700 S. Cass Avenue  

E-Print Network (OSTI)

to reduce petroleum use, cut emissions and save on fuel costs. The chart below gives you an idea of how Driving Range* Fuel Cost to Drive 25 Miles* CO2 Emissions (grams per mile)* Conventional Vehicle Powered a plug; the battery is recharged with energy from regenerative braking and the engine. 50 Not Applicable

Kemner, Ken

149

Methods of Using Alpha Channeling Together with Transformer Recharging |  

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

Methods of Using Alpha Channeling Together with Transformer Recharging Methods of Using Alpha Channeling Together with Transformer Recharging A tokamak current can be sustained using rf waves for transformer recharging at low density and high-Z with high efficiency if the resistivity is kept high enough during the radio frequency recharging stage. At the same time, operation in the hot ion mode via alpha channeling increases the effective fusion reactivity. The two separate inventions can be made to work synergistically. Specifically, by operating the tokamak in a low-density recharge phase, the lower hybrid wave penetrates the plasma more effectively. High reactivity is obtained by operation in the hot ion mode through the alpha channeling technique. Then, by using a high temperature relaxation stage, not only is the plasma current sustained

150

DOE Issues Guidance on Electric Vehicle Recharging Stations | Department of  

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

DOE Issues Guidance on Electric Vehicle Recharging Stations DOE Issues Guidance on Electric Vehicle Recharging Stations DOE Issues Guidance on Electric Vehicle Recharging Stations September 6, 2011 - 4:28pm Addthis The U.S. Department of Energy recently issued guidance to its national laboratory management and operating (M&O) contractors on the installation and operation of electric vehicle recharging stations at lab facilities. The guidance explains that lab contractors wishing to install electric vehicle recharging stations or make such stations available to employees and visitors have several options. Lab contractors may install such stations and seek reimbursement from the Department for their use to the extent such installation or use is reasonably required to meet fleet vehicle or demonstration project needs.

151

A Regenerative High-Rise Tower in Shreveport, Louisiana  

E-Print Network (OSTI)

Zero Net Energy Buildings are increasingly being designed and constructed in response to the demand for sustainable buildings. But, we must now go beyond merely sustaining our environment for future generations we must provide regenerative designs that restore our natural environment. This paper will document the design of a regenerative high-rise tower in Shreveport, Louisiana, which will serve as a facility to train individuals in a non-profit organization’s renewal strategies and demonstrate by example the pedagogy of regenerative design. The 16-story structure — built in the 1950s and named the Petroleum Tower, reflecting the commodity that then ruled the local economy — was vacant and asbestos-laden when given to the non-profit Community Renewal International (CRI) in 2001. In 2006, funded by a grant from the U.S. Environmental Protection Agency, workers removed the asbestos. Through a follow up grant from the U.S. Department of Energy to support the design process of a new CRI headquarters building, the University of Texas at Austin School of Architecture completed architectural design studies for the building renewal. The principles of this new design include: day lighting, envelope configuration, building integrated photovoltaic systems, green surfaces, ventilation strategies, advanced mechanical cooling systems, regenerative elevator systems, energy management systems, water harvesting, grey water systems, trigeneration systems and a combined heating, hot water and power biodiesel plant.

Garrison, M.

2010-08-01T23:59:59.000Z

152

Distributed Space-Time Cooperative Systems with Regenerative Relays  

Science Conference Proceedings (OSTI)

This paper addresses some of the opportunities and the challenges in the design of multi-hop systems that utilize cooperation with one or two intermediate regenerative relays to provide high-quality communication between a source and a destination. We ...

P. A. Anghel; G. Leus; M. Kaveh

2006-11-01T23:59:59.000Z

153

Fault diagnosis of regenerative water heater based-on multi-class support vector machines  

Science Conference Proceedings (OSTI)

The main idea of multi-class support vector machines (SVMs) is described. a multi-class model for regenerative water heater fault diagnosis is presented combining the fuzzy logic and SVMs. The typical faults set of regenerative water heater is built ... Keywords: fault diagnosis, fuzzy rules, regenerative water heater, steam turbine, support vector machines

Lei Wang; Rui-Qing Zhang

2009-08-01T23:59:59.000Z

154

Fault Diagnosis of Regenerative Water Heater Based-On Multi-class Support Vector Machines  

Science Conference Proceedings (OSTI)

The main idea of multi-class support vector machines (SVMs) is described. a multi-class model for regenerative water heater fault diagnosis is presented combining the fuzzy logic and SVMs. The typical faults set of regenerative water heater is built ... Keywords: steam turbine, regenerative water heater, fuzzy rules, support vector machines, fault diagnosis

Lei Wang; Rui-qing Zhang

2009-08-01T23:59:59.000Z

155

Regenerative fuel cells for High Altitude Long Endurance Solar Powered Aircraft  

DOE Green Energy (OSTI)

High Altitude Long Endurance (HALE) unmanned missions appear to be feasible using a lightweight, high efficiency, span-loaded, Solar Powered Aircraft (SPA) which includes a Regenerative Fuel Cell (RFC) system and novel tankage for energy storage. An existing flightworthy electric powered flying wing design was modified to incorporate present and near-term technologies in energy storage, power electronics, aerodynamics, and guidance and control in order to design philosophy was to work with vendors to identify affordable near-term technological opportunities that could be applied to existing designs in order to reduce weight, increase reliability, and maintain adequate efficiency of components for delivery within 18 months. The energy storage subsystem for a HALE SPA is a key driver for the entire vehicle because it can represent up to half of the vehicle weight and most missions of interest require the specific energy to be considerably higher than 200 W-hr/kg for many cycles. This stringent specific energy requirement precludes the use of rechargeable batteries or flywheels and suggests examination of various RFC designs. An RFC system using lightweight tankage, a single fuel cell (FC) stack, and a single electrolyzer (EC) stack separated by the length of a spar segment (up to 39 ft), has specific energy of {approximately}300 W-hr/kg with 45% efficiency, which is adequate for HALE SPA requirements. However, this design has complexity and weight penalties associated with thermal management, electrical wiring, plumbing, and structural weight. A more elegant solution is to use unitized RFC stacks (reversible stacks that act as both FCs and ECs) because these systems have superior specific energy, scale to smaller systems more favorably, and have intrinsically simpler thermal management.

Mitlitsky, F.; Colella, N.J.; Myers, B. [Lawrence Livermore National Lab., CA (United States); Anderson, C.J. [Aero Vironment, Inc., Monrovia, CA (United States)

1993-06-02T23:59:59.000Z

156

Broadcasting with an energy harvesting rechargeable transmitter  

E-Print Network (OSTI)

Abstract—In this paper, we investigate the transmission completion time minimization problem in an additive white Gaussian noise (AWGN) broadcast channel, where the transmitter is able to harvest energy from the nature, using a rechargeable battery. The harvested energy is modeled to arrive at the transmitter during the course of transmissions. The transmitter has a fixed number of packets to be delivered to each receiver. The objective is to minimize the time by which all of the packets are delivered to their respective destinations. To this end, we optimize the transmit powers and transmission rates in a deterministic setting. We first analyze the structural properties of the optimal transmission policy in a two-user broadcast channel via the dual problem of maximizing the departure region by a fixed time

Jing Yang; Omur Ozel; Student Member; Sennur Ulukus

2010-01-01T23:59:59.000Z

157

Spinel electrodes for rechargeable lithium batteries.  

DOE Green Energy (OSTI)

This paper gives a historical account of the development of spinel electrodes for rechargeable lithium batteries. Research in the late 1970's and early 1980's on high-temperature . Li/Fe{sub 3}O{sub 4} cells led to the evaluation of lithium spinels Li[B{sub 2}]X{sub 4} at room temperature (B = metal cation). This work highlighted the importance of the [B{sub 2}]X{sub 4}spinel framework as a host electrode structure and the ability to tailor the cell voltage by selection of different B cations. Examples of lithium-ion cells that operate with spinel anode/spinel cathode couples are provided. Particular attention is paid to spinels within the solid solution system Li{sub 1+x}Mn{sub 2-x}O{sub 4} (0 {le} x {le} 0.33).

Thackeray, M. M.

1999-11-10T23:59:59.000Z

158

Thin-film rechargeable lithium batteries  

SciTech Connect

Small thin-film rechargeable cells have been fabricated with a lithium phosphorus oxyniuide electrolyte, Li metal anode, and Li{sub 1-x}Mn{sub 2}O{sub 4} as the cathode film. The cathode films were fabricated by several different techniques resulting in both crystalline and amorphous films. These were compared by observing the cell discharge behavior. Estimates have been made for the scale-up of such a thin-film battery to meet the specifications for the electric vehicle application. The specific energy, energy density, and cycle life are expected to meet the USABC mid-term criteria. However, the areas of the thin-films needed to fabricate such a cell are very large. The required areas could be greatly reduced by operating the battery at temperatures near 100{degrees}C or by enhancing the lithium ion transport rate in the cathode material.

Dudney, N.J.; Bates, J.B.; Lubben, D.

1994-11-01T23:59:59.000Z

159

Rechargeable thin-film lithium batteries  

SciTech Connect

Rechargeable thin-film batteries consisting of lithium metal anodes, an amorphous inorganic electrolyte, and cathodes of lithium intercalation compounds have recently been developed. The batteries, which are typically less than 6-{mu}m thick, can be fabricated to any specified size, large or small, onto a variety of substrates including ceramics, semiconductors, and plastics. The cells that have been investigated include Li-TiS{sub 2}, Li-V{sub 2}O{sub 5}, and Li-Li{sub x}Mn{sub 2}O{sub 4}, with open circuit voltages at full charge of about 2.5, 3.6, and 4.2, respectively. The development of these batteries would not have been possible without the discovery of a new thin-film lithium electrolyte, lithium phosphorus oxynitride, that is stable in contact with metallic lithium at these potentials. Deposited by rf magnetron sputtering of Li{sub 3}PO{sub 4} in N{sub 2}, this material has a typical composition of Li{sub 2.9}PO{sub 3.3}N{sub 0.46} and a conductivity at 25{degrees}C of 2 {mu}S/cm. The maximum practical current density obtained from the thin-film cells is limited to about 100 {mu}A/cm{sup 2} due to a low diffusivity of Li{sup +} ions in the cathodes. In this work, the authors present a short review of their work on rechargeable thin-film lithium batteries.

Bates, J.B.; Gruzalski, G.R.; Dudney, N.J.; Luck, C.F.; Yu, Xiaohua

1993-08-01T23:59:59.000Z

160

Stop/Start: Overview  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

a combination of regenerative and conventional friction braking to slow the vehicle. In regenerative braking, energy from the wheels turns the electric generator, creating...

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


161

A Lifecycle Emissions Model (LEM): Lifecycle Emissions from Transportation Fuels, Motor Vehicles, Transportation Modes, Electricity Use, Heating and Cooking Fuels, and Materials  

E-Print Network (OSTI)

maximum, and restricts regenerative energy to be less thanthe extra energy made available by regenerative braking. Theregenerative braking (for fuel-cell vehicles without electro-chemical energy

Delucchi, Mark

2003-01-01T23:59:59.000Z

162

Nonlinear Control Synthesis for a Self-energizing Electro-Hydraulic Brake  

E-Print Network (OSTI)

Nonlinear control algorithm for a self-energizing electro-hydraulic brake is analytically designed. The desired closed-loop system behavior is reached via a synthesized nonlinear controller.

Starykh, Alexey

2010-01-01T23:59:59.000Z

163

Flexographically Printed Rechargeable Zinc-based Battery for Grid Energy Storage  

E-Print Network (OSTI)

Rechargeable, Lithium-ion Molten Salt Battery for Highare room- temperature molten salts, which are typically

Wang, Zuoqian

2013-01-01T23:59:59.000Z

164

High-power regenerative Nd-phosphate glass amplifier  

Science Conference Proceedings (OSTI)

A compact high-power regenerative Nd-phosphate glass amplifier is described which incorporates spatial filtering and full image relay techniques. Output energies up to 1.2 J at a pulse duration of 140 +- 10 psec (FWHM) and 3 J at 900 +- 70 psec (FWHM) are achieved in a smooth nearly flattop beam intensity profile. Even with present-day technology, this system could be scaled into a terawatt regime.

Roschger, E.W.; Balmer, J.E.

1985-09-15T23:59:59.000Z

165

Rechargeable lithium battery energy storage systems for vehicular applications.  

E-Print Network (OSTI)

??Batteries are used on-board vehicles for broadly two applications – starting-lighting-ignition (SLI) and vehicle traction. This thesis examines the suitability of the rechargeable lithium battery… (more)

HURIA, TARUN

2012-01-01T23:59:59.000Z

166

Improved zinc electrode and rechargeable zinc-air battery  

DOE Patents (OSTI)

The invention comprises an improved rechargeable zinc-air cell/battery having recirculating alkaline electrolyte and a zinc electrode comprising a porous foam support material which carries the active zinc electrode material. 5 figs.

Ross, P.N. Jr.

1988-06-21T23:59:59.000Z

167

Composite Electrodes for Rechargeable Lithium-Ion Batteries ...  

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

Composite Electrodes for Rechargeable Lithium-Ion Batteries Technology available for licensing: Electrodes having composite xLi2M'O3(1-x)LiMO2 structures in which an...

168

Reliability of Rechargeable Batteries in a Photovoltaic Power Supply System  

DOE Green Energy (OSTI)

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

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

1998-11-30T23:59:59.000Z

169

ESS 2012 Peer Review - Nanocatalytic Rechargeable Lithium Air...  

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

Phase I objective is to fabricate a rechargeable LiAir battery cathode based on a graphene composite containing an electrocatalyst. A succinonitrile-based plastic crystal-type...

170

The Evolution of Sustainable Personal Vehicles  

E-Print Network (OSTI)

as well as energy recovery during regenerative braking. Theenergy is recoverable in an electrically dominant vehicle through regenerative

Jungers, Bryan D

2009-01-01T23:59:59.000Z

171

Rechargeable Magnesium Batteries: Low-Cost Rechargeable Magnesium Batteries with High Energy Density  

Science Conference Proceedings (OSTI)

BEEST Project: Pellion Technologies is developing rechargeable magnesium batteries that would enable an EV to travel 3 times farther than it could using Li-ion batteries. Prototype magnesium batteries demonstrate excellent electrochemical behavior; delivering thousands of charge cycles with very little fade. Nevertheless, these prototypes have always stored too little energy to be commercially viable. Pellion Technologies is working to overcome this challenge by rapidly screening potential storage materials using proprietary, high-throughput computer models. To date, 12,000 materials have been identified and analyzed. The resulting best materials have been electrochemically tested, yielding several very promising candidates.

None

2010-10-01T23:59:59.000Z

172

Thin-film rechargeable lithium batteries  

SciTech Connect

Rechargeable thin-films batteries with lithium metal anodes, an amorphous inorganic electrolyte, and cathodes of lithium intercalation compounds have been fabricated and characterized. The cathodes include TiS{sub 2}, the {omega} phase of V{sub 2}O{sub 5}, and the cubic spinel Li{sub x}Mn{sub 2}O{sub 4} with open circuit voltages at full charge of about 2.5 V, 3.7 V, and 4.2 V, respectively. The development of these robust cells, which can be cycled thousands of times, was possible because of the stability of the amorphous lithium electrolyte, lithium phosphorus oxynitride. This material has a typical composition of Li{sub 2.9}PO{sub 3.3}N{sub 0.46} and a conductivity at 25 C of 2 {mu}S/cm. Thin-film cells have been cycled at 100% depth of discharge using current densities of 2 to 100 {mu}A/cm{sup 2}. The polarization resistance of the cells is due to the slow insertion rate of Li{sup +} ions into the cathode. Chemical diffusion coefficients for Li{sup +} ions in the three types of cathodes have been estimated from the analysis of ac impedance measurements.

Bates, J.B.; Gruzalski, G.R.; Dudney, N.J.; Luck, C.F.; Yu, X.

1993-11-01T23:59:59.000Z

173

Rechargeable thin-film lithium batteries  

Science Conference Proceedings (OSTI)

Rechargeable thin-film batteries consisting of lithium metal anodes, an amorphous inorganic electrolyte, and cathodes of lithium intercalation compounds have been fabricated and characterized. These include Li-TiS{sub 2}, Li-V{sub 2}O{sub 5}, and Li-Li{sub x}Mn{sub 2}O{sub 4} cells with open circuit voltages at full charge of about 2.5 V, 3.7 V, and 4.2 V, respectively. The realization of these robust cells, which can be cycled thousands of times, was possible because of the stability of the amorphous lithium electrolyte, lithium phosphorus oxynitride. This material has a typical composition of Li{sub 2.9}PO{sub 3.3}N{sub 0.46}and a conductivity at 25 C of 2 {mu}S/cm. The thin-film cells have been cycled at 100% depth of discharge using current densities of 5 to 100 {mu}A/cm{sup 2}. Over most of the charge-discharge range, the internal resistance appears to be dominated by the cathode, and the major source of the resistance is the diffusion of Li{sup +} ions from the electrolyte into the cathode. Chemical diffusion coefficients were determined from ac impedance measurements.

Bates, J.B.; Gruzalski, G.R.; Dudney, N.J.; Luck, C.F.; Yu, X.

1993-09-01T23:59:59.000Z

174

Broadcasting with an Energy Harvesting Rechargeable Transmitter  

E-Print Network (OSTI)

In this paper, we investigate the transmission completion time minimization problem in a two-user additive white Gaussian noise (AWGN) broadcast channel, where the transmitter is able to harvest energy from the nature, using a rechargeable battery. The harvested energy is modeled to arrive at the transmitter randomly during the course of transmissions. The transmitter has a fixed number of packets to be delivered to each receiver. Our goal is to minimize the time by which all of the packets for both users are delivered to their respective destinations. To this end, we optimize the transmit powers and transmission rates intended for both users. We first analyze the structural properties of the optimal transmission policy. We prove that the optimal total transmit power has the same structure as the optimal single-user transmit power. We also prove that there exists a cut-off power level for the stronger user. If the optimal total transmit power is lower than this cut-off level, all transmit power is allocated t...

Yang, Jing; Ulukus, Sennur

2010-01-01T23:59:59.000Z

175

Thin-film Rechargeable Lithium Batteries  

DOE R&D Accomplishments (OSTI)

Rechargeable thin films batteries with lithium metal anodes, an amorphous inorganic electrolyte, and cathodes of lithium intercalation compounds have been fabricated and characterized. The cathodes include TiS{sub 2}, the {omega} phase of V{sub 2}O{sub 5}, and the cubic spinel Li{sub x}Mn{sub 2}O{sub 4} with open circuit voltages at full charge of about 2.5 V, 3.7 V, and 4.2 V, respectively. The development of these robust cells, which can be cycled thousands of times, was possible because of the stability of the amorphous lithium electrolyte, lithium phosphorus oxynitride. This material has a typical composition of Li{sub 2.9}PO{sub 3.3}N{sub 0.46} and a conductivity at 25 C of 2 {mu}S/cm. Thin film cells have been cycled at 100% depth of discharge using current densities of 2 to 100 {mu}A/cm{sup 2}. The polarization resistance of the cells is due to the slow insertion rate of Li{sup +} ions into the cathode. Chemical diffusion coefficients for Li{sup +} ions in the three types of cathodes have been estimated from the analysis of ac impedance measurements.

Bates, J. B.; Gruzalski, G. R.; Dudney, N. J.; Luck, C. F.; Yu, X.

1993-11-00T23:59:59.000Z

176

REGENERATIVE STORMWATER CONVEYANCE (RSC) AS AN INTEGRATED APPROACH TO SUSTAINABLE STORMWATER PLANNING ON LINEAR PROJECTS  

E-Print Network (OSTI)

energy and sediment supply. In the collection and conveyance-oriented regenerativeenergy. As a result, it is possible to develop a linear regenerative

Berg, Joe; Underwood, Keith

2009-01-01T23:59:59.000Z

177

Design and simulation of lithium rechargeable batteries  

DOE Green Energy (OSTI)

Lithium -based rechargeable batteries that utilize insertion electrodes are being considered for electric-vehicle applications because of their high energy density and inherent reversibility. General mathematical models are developed that apply to a wide range of lithium-based systems, including the recently commercialized lithium-ion cell. The modeling approach is macroscopic, using porous electrode theory to treat the composite insertion electrodes and concentrated solution theory to describe the transport processes in the solution phase. The insertion process itself is treated with a charge-transfer process at the surface obeying Butler-Volmer kinetics, followed by diffusion of the lithium ion into the host structure. These models are used to explore the phenomena that occur inside of lithium cells under conditions of discharge, charge, and during periods of relaxation. Also, in order to understand the phenomena that limit the high-rate discharge of these systems, we focus on the modeling of a particular system with well-characterized material properties and system parameters. The system chosen is a lithium-ion cell produced by Bellcore in Red Bank, NJ, consisting of a lithium-carbon negative electrode, a plasticized polymer electrolyte, and a lithium-manganese-oxide spinel positive electrode. This battery is being marketed for consumer electronic applications. The system is characterized experimentally in terms of its transport and thermodynamic properties, followed by detailed comparisons of simulation results with experimental discharge curves. Next, the optimization of this system for particular applications is explored based on Ragone plots of the specific energy versus average specific power provided by various designs.

Doyle, C.M.

1995-08-01T23:59:59.000Z

178

New York's Energy Storage System Gets Recharged | Department of Energy  

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

York's Energy Storage System Gets Recharged York's Energy Storage System Gets Recharged New York's Energy Storage System Gets Recharged August 2, 2010 - 1:18pm Addthis Matt Rogers, Senior Advisor to Secretary Chu, explain why grid frequency regulation matters Jonathan Silver Jonathan Silver Executive Director of the Loan Programs Office What does this mean for me? AES Storage in New York got a $17.1M conditional loan guarantee to provide a more stable transmission grid. When thinking of clean technologies, energy storage might not be the first thing to come to mind, but with a $17.1 million conditional commitment for a loan guarantee from the Department of Energy AES Energy Storage will develop a battery-based energy storage system to provide a more stable and efficient electrical grid for New York State's high-voltage transmission

179

Rechargeable Heat Battery's Secret Revealed: Solar Energy Capture in  

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

Rechargeable Heat Rechargeable Heat Battery Rechargeable Heat Battery's Secret Revealed Solar energy capture in chemical form makes it storable and transportable January 11, 2011 | Tags: Chemistry, Energy Technologies, Franklin Contact: John Hules, JAHules@lbl.gov, +1 510 486 6008 2011-01-11-Heat-Battery.jpg A molecule of fulvalene diruthenium, seen in diagram, changes its configuration when it absorbs heat, and later releases heat when it snaps back to its original shape. Image: Jeffrey Grossman Broadly speaking, there have been two approaches to capturing the sun's energy: photovoltaics, which turn the sunlight into electricity, or solar-thermal systems, which concentrate the sun's heat and use it to boil water to turn a turbine, or use the heat directly for hot water or home

180

Control of a dynamic brake to reduce turbine-generator shaft transient torques  

SciTech Connect

A resistive, thyristor-controlled brake is used to damp transient torques in large thermo-electric generators supplying series-compensated transmission lines. Emphasis is placed on developing a suitable control algorithm and testing the algorithm through a wide variety of different operating configurations. Discrete-level Generalized Predictive Control is examined as one possible approach to optimal control of the brake. Some problems with implementation of GPC on the system are discussed. Prony analysis is used to identify system transfer functions which are then related to control design considerations and robustness properties.

Donnelly, M.K.; Smith, J.R.; Johnson, R.M. (Montana State Univ., Bozeman, MT (United States)); Hauer, J.F. (Bonneville Power Administration, Kalispell, MT (United States)); Brush, R.W. (Montana Power Co., Butte, MT (United States)); Adapa, R. (Electric Power Research Inst., Palo Alto, CA (United States))

1993-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Evaluation of an Ecohydrologic-Process Model Approach to Estimating Annual Mountain-Block Recharge.  

E-Print Network (OSTI)

??Magruder, Ian, M.S., December 2006 Geology Evaluation of an Ecohydrologic-Process Model Approach to Estimating Annual Mountain-Block Recharge Chairperson: Dr. William Woessner Regional subsurface mountain-block recharge… (more)

Magruder, Ian Auguste

2007-01-01T23:59:59.000Z

182

Fuel Cell Powered Vehicles Using Supercapacitors: Device Characteristics, Control Strategies, and Simulation Results  

E-Print Network (OSTI)

and the recaptured regenerative energy are completely offsetincrease of captured regenerative energy, and will slightlythe capture of regenerative braking energy, which will

Zhao, Hengbing; Burke, Andy

2010-01-01T23:59:59.000Z

183

Rechargeable Zn-MnO sub 2 alkaline batteries  

SciTech Connect

In this paper progress in the development of rechargeable alkaline zinc-manganese dioxide cells is described. The advantages and limitations of the system are evaluated. Laboratory tests run on commercial primary alkaline cells as well as model simulations of a bipolar MnO{sub 2} electrode show that the rechargeable alkaline battery may be able to compete with lead-acid, nickel-cadmium, and secondary lithium cells for low- to moderate-rate applications. However, because of this poor performance at high rates and low temperatures, the alkaline MnO{sub 2} battery is not suitable for present automotive starting applications.

Wruck, W.J.; Reichman, B.; Bullock, K.R.; Kao, W.H. (Corporate Applied Research, Johnson Controls, Inc., Milwaukee, WI (US))

1991-12-01T23:59:59.000Z

184

Study on the Mode of Power Plant Circulating Water Waste Heat Regenerative Thermal System  

Science Conference Proceedings (OSTI)

Power Plant Circulating Water (PPCW) waste heat recycling is an important way of increasing a power plant’s primary energy ratio. According to the PPCW waste heat regenerative thermal system, the authors propose two modes of heat pump heat regenerative ... Keywords: heat pump, power plant circulating water (PPCW), waste heat recycling, energy saving

Bi Qingsheng; Ma Yanliang; Yang Zhifu

2009-10-01T23:59:59.000Z

185

ELECTROCHEMICAL POWER FOR TRANSPORTATION  

E-Print Network (OSTI)

regenerative braking was much more significant with the separately- excited motor in that the energy

Cairns, Elton J.

2012-01-01T23:59:59.000Z

186

CENTRE NATIONAL DE LA RECHERCHE  

E-Print Network (OSTI)

-wheel motors, EMB : · standard ABS algorithms are not adapted to regenerative braking (Toyota Prius

187

Optimal control of batteries with fully and partially available rechargeability  

Science Conference Proceedings (OSTI)

Motivated by the increasing dependence of many systems on battery energy, we study the problem of optimally controlling how to discharge and recharge a non-ideal battery so as to maximize the work it can perform over a given time period and still maintain ... Keywords: Energy-aware system, Kinetic battery model, Optimal control

Tao Wang; Christos G. Cassandras

2012-08-01T23:59:59.000Z

188

Automated Battery Swap and Recharge to Enable Persistent UAV Missions  

E-Print Network (OSTI)

Automated Battery Swap and Recharge to Enable Persistent UAV Missions Tuna Toksoz , Joshua Redding introduces a hardware platform for automated battery changing and charging for multiple UAV agents. The automated station holds a buffer of 8 batteries in a novel dual-drum structure that enables a "hot" battery

How, Jonathan P.

189

Interdisciplinary Institute for Innovation Optimal Recharging Strategy for  

E-Print Network (OSTI)

while the Spanish government has committed to having 1 million electric or hybrid cars on Spanish roads price differentials in electricity tariffs are designed to dissuade car owners from recharging for Electric Vehicles in France Margaret Armstrong Charles El Hajj Moussa Jérôme Adnot Alain Galli Philippe

Paris-Sud XI, Université de

190

Biodegradable Mg-Ca and Mg-1Ca-1Y alloys for Regenerative ...  

Science Conference Proceedings (OSTI)

Biodegradable Mg-Ca and Mg-1Ca-1Y alloys for Regenerative Medicine ... in Multi–Length–Scale Bone Structure – An Investigation Using High-Energy X- Rays.

191

Zinc electrode and rechargeable zinc-air battery  

DOE Patents (OSTI)

An improved zinc electrode is disclosed for a rechargeable zinc-air battery comprising an outer frame and a porous foam electrode support within the frame which is treated prior to the deposition of zinc thereon to inhibit the formation of zinc dendrites on the external surface thereof. The outer frame is provided with passageways for circulating an alkaline electrolyte through the treated zinc-coated porous foam. A novel rechargeable zinc-air battery system is also disclosed which utilizes the improved zinc electrode and further includes an alkaline electrolyte within said battery circulating through the passageways in the zinc electrode and an external electrolyte circulation means which has an electrolyte reservoir external to the battery case including filter means to filter solids out of the electrolyte as it circulates to the external reservoir and pump means for recirculating electrolyte from the external reservoir to the zinc electrode.

Ross, Jr., Philip N. (Kensington, CA)

1989-01-01T23:59:59.000Z

192

Novel electrolyte chemistries for Mg-Ni rechargeable batteries.  

DOE Green Energy (OSTI)

Commercial hybrid electric vehicles (HEV) and battery electric vehicles (BEV) serve as means to reduce the nation's dependence on oil. Current electric vehicles use relatively heavy nickel metal hydride (Ni-MH) rechargeable batteries. Li-ion rechargeable batteries have been developed extensively as the replacement; however, the high cost and safety concerns are still issues to be resolved before large-scale production. In this study, we propose a new highly conductive solid polymer electrolyte for Mg-Ni high electrochemical capacity batteries. The traditional corrosive alkaline aqueous electrolyte (KOH) is replaced with a dry polymer with conductivity on the order of 10{sup -2} S/cm, as measured by impedance spectroscopy. Several potential novel polymer and polymer composite candidates are presented with the best-performing electrolyte results for full cell testing and cycling.

Garcia-Diaz, Brenda (Savannah River National Laboratory); Kane, Marie; Au, Ming (Savannah River National Laboratory)

2010-10-01T23:59:59.000Z

193

Rechargeable battery with separate charging terminal contact ring  

SciTech Connect

A generally cylindrical rechargeable battery is provided leaving a pair of power terminals for delivering energy to an energy-using device. The battery further includes a charging terminal contact spaced apart from the power terminals and extending substantially around the circumference of the battery whereby charging contact on the battery may engage a corresponding charging contact in the energy-using device to charge the battery in all rotational positions of the battery.

Beachy, R. W.

1984-12-18T23:59:59.000Z

194

Hysteresis in Thin-Film Rechargeable Lithium Batteries  

SciTech Connect

Discharge - charge cycling of thin-film rechargeable lithium batteries with an amorphous or nanocrystalline LiXMn2.Y04 cathode reveals evidence for a true hysteresis in the lithium insertion reaction. This is compared with an apparent hysteresis attributed to a kinetically hindered phase transition near 3 V for batteries with either a crystalline or a nanocrystalline LiJ@Yo4 cathode.

Bates, J.B.; Dudney, N.J.; Evans, C.D.; Hart, F.X.

1999-04-25T23:59:59.000Z

195

Estimating recharge at Yucca Mountain, Nevada: A case study  

Science Conference Proceedings (OSTI)

Obtaining values of net infiltration, groundwater travel time, and recharge is necessary at the Yucca Mountain site, Nevada, USA, in order to evaluate the expected performance of a potential repository as a containment system for high-level radioactive waste. However, the geologic complexities of this site, its low precipitation and net infiltration, with numerous mechanisms operating simultaneously to move water through the system, provide many challenges for the estimation of the spatial distribution of recharge. A variety of methods appropriate for arid environments has been applied, including water-balance techniques, calculations using Darcy's law in the unsaturated zone, a soil-physics method applied to neutron-hole water-content data, inverse modeling of thermal profiles in boreholes extending through the thick unsaturated zone, chloride mass balance, atmospheric radionuclides, and empirical approaches. These methods indicate that near-surface infiltration rates at Yucca Mountain are highly variable in time and space, with local (point) values ranging from zero to several hundred millimeters per year. Spatially distributed net-infiltration values average 5 mm/year, with the highest values approaching 20 mm/year near Yucca Crest. Site-scale recharge estimates range from less than 1 to about 12 mm/year. These results have been incorporated into a site-scale model that has been calibrated using these data sets that reflect infiltration processes acting on highly variable temporal and spatial scales. The modeling study predicts highly non-uniform recharge at the water table, distributed significantly differently from the non-uniform infiltration pattern at the surface.

Flint, A.; Flint, L.; Kwicklis, E.; Fabryka-Martin, J.; Bodvarsson, G.S.

2001-05-13T23:59:59.000Z

196

Estimating recharge at yucca mountain, nevada, usa: comparison of methods  

Science Conference Proceedings (OSTI)

Obtaining values of net infiltration, groundwater travel time, and recharge is necessary at the Yucca Mountain site, Nevada, USA, in order to evaluate the expected performance of a potential repository as a containment system for high-level radioactive waste. However, the geologic complexities of this site, its low precipitation and net infiltration, with numerous mechanisms operating simultaneously to move water through the system, provide many challenges for the estimation of the spatial distribution of recharge. A variety of methods appropriate for and environments has been applied, including water-balance techniques, calculations using Darcy's law in the unsaturated zone, a soil-physics method applied to neutron-hole water-content data, inverse modeling of thermal profiles in boreholes extending through the thick unsaturated zone, chloride mass balance, atmospheric radionuclides, and empirical approaches. These methods indicate that near-surface infiltration rates at Yucca Mountain are highly variable in time and space, with local (point) values ranging from zero to several hundred millimeters per year. Spatially distributed net-infiltration values average 5 mm/year, with the highest values approaching 20 nun/year near Yucca Crest. Site-scale recharge estimates range from less than I to about 12 mm/year. These results have been incorporated into a site-scale model that has been calibrated using these data sets that reflect infiltration processes acting on highly variable temporal and spatial scales. The modeling study predicts highly non-uniform recharge at the water table, distributed significantly differently from the non-uniform infiltration pattern at the surface. [References: 57

Flint, A. L.; Flint, L. E.; Kwicklis, E. M.; Fabryka-Martin, J. T.; Bodvarsson, G. S.

2001-11-01T23:59:59.000Z

197

Molten Air -- A new, highest energy class of rechargeable batteries  

E-Print Network (OSTI)

This study introduces the principles of a new class of batteries, rechargeable molten air batteries, and several battery chemistry examples are demonstrated. The new battery class uses a molten electrolyte, are quasi reversible, and have amongst the highest intrinsic battery electric energy storage capacities. Three examples of the new batteries are demonstrated. These are the iron, carbon and VB2 molten air batteries with respective intrinsic volumetric energy capacities of 10,000, 19,000 and 27,000 Wh per liter.

Licht, Stuart

2013-01-01T23:59:59.000Z

198

Highly Stable, All-Solid-State Nd:YLF Regenerative Amplifier  

Science Conference Proceedings (OSTI)

A diode-pumped Nd:YLF regenerative amplifier (regen) has been developed and is in use in the 60-beam, 30-kJUV OMEGA laser system's driver line. The high stability, compactness, and reliability of this all-solid-state modular design are the key features of this concept. Stable, millijoule-level output-pulse energies with an overall gain of 109 have been demonstrated.

Okishev,A.V.; Zuegel,J.D.

2004-11-20T23:59:59.000Z

199

Issue and challenges facing rechargeable thin film lithium batteries  

Science Conference Proceedings (OSTI)

New materials hold the key to fundamental advances in energy conversion and storage, both of which are vital in order to meet the challenge of global warming and the finite nature of fossil fuels. Nanomaterials in particular offer unique properties or combinations of properties as electrodes and electrolytes in a range of energy devices. Technological improvements in rechargeable solid-state batteries are being driven by an ever-increasing demand for portable electronic devices. Lithium batteries are the systems of choice, offering high energy density, flexible, lightweight design and longer lifespan than comparable battery technologies. We present a brief historical review of the development of lithium-based thin film rechargeable batteries highlight ongoing research strategies and discuss the challenges that remain regarding the discovery of nanomaterials as electrolytes and electrodes for lithium batteries also this article describes the possible evolution of lithium technology and evaluates the expected improvements, arising from new materials to cell technology. New active materials under investigation and electrode process improvements may allow an ultimate final energy density of more than 500 Wh/L and 200 Wh/kg, in the next 5-6 years, while maintaining sufficient power densities. A new rechargeable battery technology cannot be foreseen today that surpasses this. This report will provide key performance results for thin film batteries and highlight recent advances in their development.

Patil, Arun; Patil, Vaishali; Shin, Dong Wook; Choi, Ji-Won; Paik, Dong-Soo [Thin Film Materials Research Center, Korea Institute of Science and Technology, Seoul 136-791 (Korea, Republic of); Yoon, Seok-Jin [Thin Film Materials Research Center, Korea Institute of Science and Technology, Seoul 136-791 (Korea, Republic of)], E-mail: sjyoon@kist.re.kr

2008-08-04T23:59:59.000Z

200

Vehicular hydrogen storage using lightweight tanks (regenerative fuel cell systems)  

DOE Green Energy (OSTI)

Energy storage systems with extremely high specific energy (>400 Wh/kg) have been designed that use lightweight tankage to contain the gases generated by reversible (unitized) regenerative fuel cells (URFCs). Lawrence Livermore National Laboratory (LLNL) will leverage work for aerospace applications supported by other sponsors (including BMDO, NASA, and USAF) to develop URFC systems for transportation and utility applications. Lightweight tankage is important for primary fuel cell powered vehicles that use on-board storage of hydrogen. Lightweight pressure vessels with state-of-the-art performance factors were designed, and prototypes are being fabricated to meet the DOE 2000 goals (4000 Wh/kg, 12% hydrogen by weight, 700 Wh/liter, and $20/kWh in high volume production). These pressure vessels use technologies that are easily adopted by industrial partners. Advanced liners provide permeation barriers for gas storage and are mandrels for composite overwrap. URFCs are important to the efficient use of hydrogen as a transportation fuel and enabler of renewable energy. H{sub 2}/halogen URFCs may be advantageous for stationary applications whereas H{sub 2}/O{sub 2} or H{sub 2}/air URFCs are advantageous for vehicular applications. URFC research and development is required to improve performance (efficiency), reduce catalyst loading, understand engineering operation, and integrate systems. LLNL has the experimental equipment and advanced URFC membrane electrode assemblies (some with reduced catalyst loading) for evaluating commercial hardware (not funded by DOE in FY1999).

Mitlitsky, F; Myers, B; Weisberg, A H

1999-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Convective heat and mass transfer in compact regenerative dehumidifiers  

Science Conference Proceedings (OSTI)

Regular-density silica gel is identified as the candidate desiccant for regenerative dehumidification of humid air operating at low-regeneration temperatures and high-process humidities. The literature on the equilibrium sorption uptake of water vapor by R. D. silica gel is reviewed in this work, and a large number of experimental sorption data is collected from various technical reports. The Dubinin-Polanyi sorption theory for microporous adsorbents is discussed and applied to the sorptive data. A graphical presentation of the experimental data establishes the characteristic curve for the sorption of water vapor on silica gel. The Dubinin-Astakhov correlation is used to represent the equilibrium sorption isotherm and values for the characteristic sorption energies are determined by curve fitting with the experimental data. An accurate, generalized isotherm equation for the sorption of water vapor on regular density silica gel is presented in the first part of this work. The second part of this work presents an analytical and experimental investigation of the transient heat and mass transfer in laminar flow of humid air over a silica gel surface. Experimental results are presented for the transient response of a parallel-plate dehumidifier matrix in single-blow type experiments.

Van den Buick, E.

1987-01-01T23:59:59.000Z

202

Use of an auditory signal in a rear-end collision warning system: effects on braking force and reaction time  

E-Print Network (OSTI)

This simulator experiment is a preliminary study examining the effects of different auditory signals on braking force and reaction time in a rear-end collision warning system. A driving simulator was built in which subjects operated a computer driving game. Superimposed on the game screen was the image of a car which appeared to the driver to be ahead of him/her. The image enlarged in size, appearing to be a car applying its brakes. The participant was instructed to react as he would in a real driving situation by applying his/her brakes. Closing velocities of 10 miles per hour and 30 miles per hour were used. Braking times and forces were measured for four different warning sounds: 1) no warning; 2) a pulsed warning sound that increased in repetition rate; 3) a sound that increased in frequency; and, 4) a sound that increased in intensity. Results suggested that an auditory warning signal would decrease reaction time and increase maximum braking force applied. The sound that increased in frequency and the sound that increased in intensity provided the greatest savings in reaction time, approximately one quarter second, when compared to the no warning condition. The pulsed warning sound provided the greatest increase in braking force. Participants preferred the pulsed sound over the other warning sounds. Further research must be done to determine if the warning sounds decrease the reaction time enough to cause a significant reduction in accidents.

Hopkins, Jennifer Susan

1995-01-01T23:59:59.000Z

203

Collapse and Fragmentation of Molecular Cloud Cores. X. Magnetic Braking of Prolate and Oblate Cores  

E-Print Network (OSTI)

The collapse and fragmentation of initially prolate and oblate, magnetic molecular clouds is calculated in three dimensions with a gravitational, radiative hydrodynamics code. The code includes magnetic field effects in an approximate manner: magnetic pressure, tension, braking, and ambipolar diffusion are all modelled. The parameters varied for both the initially prolate and oblate clouds are the initial degree of central concentration of the radial density profile, the initial angular velocity, and the efficiency of magnetic braking (represented by a factor $f_{mb} = 10^{-4}$ or $10^{-3}$). The oblate cores all collapse to form rings that might be susceptible to fragmentation into multiple systems. The outcome of the collapse of the prolate cores depends strongly on the initial density profile. Prolate cores with central densities 20 times higher than their boundary densities collapse and fragment into binary or quadruple systems, whereas cores with central densities 100 times higher collapse to form single...

Boss, Alan P

2009-01-01T23:59:59.000Z

204

How Many CVs are Crossing the Period Gap? A Test for the Disruption of Magnetic Braking  

E-Print Network (OSTI)

We apply population synthesis techniques to calculate the present day number of two types of white dwarf-main sequence star (WDMS) binaries within the cataclysmic variable period gap. The first are post-common envelope binaries with secondary stars that have masses between 0.17 and 0.36 Msun (gPCEBs), such that they will commence mass transfer within the period gap. The second type are systems that were CVs at some point in their past, but detached once they evolved down in orbital period to ~3 h as a consequence of disrupted magnetic braking, and are crossing the period gap via gravitational radiation (dCVs). Full population synthesis calculations are performed where we assume either constant, global values of the common envelope ejection efficiency, or consider the ejection efficiency as a function of secondary mass. Several forms of magnetic braking are also considered. We predict an excess of dCVs over gPCEBs within the period gap of ~4 to ~13 assuming an ejection efficiency between 0.1 and 0.6, and a flat initial mass ratio distribution. This excess is revealed as a prominent peak at the location of the period gap in the orbital period distribution of the combined gPCEB and dCV population. We suggest that if such a feature is observed in the orbital period distribution of an observed sample of short orbital period WDMS binaries, this would strongly corroborate the disruption of magnetic braking.

P. J. Davis; U. Kolb; B. Willems; B. T. Gänsicke

2008-05-30T23:59:59.000Z

205

Variations in gear fatigue life for different wind turbine braking strategies  

SciTech Connect

A large number of gearbox failures have occurred in the wind industry in a relatively short period, many because service loads were underestimated. High-torque transients that occur during starting and stopping are difficult to predict and may be overlooked in specifying gearbox design. Although these events comprise a small portion of total load cycles, they can be the most damaging. The severity of these loads varies dramatically with the specific configuration of the wind turbine. The large number of failures in Danish-designed Micon 65 wind turbines prompted this investigation. The high-speed and low-speed shaft torques were measured on a two-stage helical gearbox of a single Micon 65 turbine. Transient events and normal running loads were combined statistically to obtain a typical annual load spectrum. The pitting and bending fatigue lives of the gear teeth were calculated by using Miner's rule for four different high-speed shaft brake configurations. Each breaking scenario was run for both a high- and a low-turbulence normal operating load spectrum. The analysis showed increases in gear life by up to a factor of 25 when the standard high-speed shaft brake is replaced with a dynamic brake or modified with a damper. 9 refs., 9 figs., 3 tabs.

McNiff, B.P. (Second Wind, Inc., Somerville, MA (USA)); Musial, W.D. (Solar Energy Research Inst., Golden, CO (USA)); Errichello, R. (GEARTECH, Albany, CA (USA))

1991-06-01T23:59:59.000Z

206

Variations in gear fatigue life for different wind turbine braking strategies  

DOE Green Energy (OSTI)

A large number of gearbox failures have occurred in the wind industry in a relatively short period, many because service loads were underestimated. High-torque transients that occur during starting and stopping are difficult to predict and may be overlooked in specifying gearbox design. Although these events comprise a small portion of total load cycles, they can be the most damaging. The severity of these loads varies dramatically with the specific configuration of the wind turbine. The large number of failures in Danish-designed Micon 65 wind turbines prompted this investigation. The high-speed and low-speed shaft torques were measured on a two-stage helical gearbox of a single Micon 65 turbine. Transient events and normal running loads were combined statistically to obtain a typical annual load spectrum. The pitting and bending fatigue lives of the gear teeth were calculated by using Miner's rule for four different high-speed shaft brake configurations. Each breaking scenario was run for both a high- and a low-turbulence normal operating load spectrum. The analysis showed increases in gear life by up to a factor of 25 when the standard high-speed shaft brake is replaced with a dynamic brake or modified with a damper. 9 refs., 9 figs., 3 tabs.

McNiff, B.P. (Second Wind, Inc., Somerville, MA (USA)); Musial, W.D. (Solar Energy Research Inst., Golden, CO (USA)); Errichello, R. (GEARTECH, Albany, CA (USA))

1991-06-01T23:59:59.000Z

207

Flexible, Thin, and Rechargeable Li-ion Battery Based on Semi ...  

Science Conference Proceedings (OSTI)

Symposium, Energy Storage III: Materials, Systems and Applications Symposium. Presentation Title, Flexible, Thin, and Rechargeable Li-ion Battery Based on ...

208

New Materials for High-Energy, Long-Life Rechargeable Batteries...  

Office of Science (SC) Website

New Materials for High-Energy, Long-Life Rechargeable Batteries Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding...

209

ESS 2012 Peer Review - Iron-Air Rechargeable Battery for Grid...  

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

A Robust and Inexpensive Iron-Air Rechargeable Battery for Grid-Scale Energy Storage Lead: University of Southern California, Loker Hydrocarbon Research Institute Sub-Awardee: Jet...

210

High energy density, thin-lm, rechargeable lithium batteries for marine eld operations  

E-Print Network (OSTI)

/discharge performance of a Li-ion battery. In their model, loss of cyclable lithium ions and increase in the anode film a one-dimensional schematic of a recharge- able Li-ion battery. During discharge, lithium ions deinter in the cycle life model of rechargeable Li-ion batteries Parameter Cathode (LixCoO2) Membrane separator

Sadoway, Donald Robert

211

Promoting the Market for Plug-in Hybrid and Battery Electric Vehicles: Role of Recharge Availability  

Science Conference Proceedings (OSTI)

Much recent attention has been drawn to providing adequate recharge availability as a means to promote the battery electric vehicle (BEV) and plug-in hybrid electric vehicle (PHEV) market. The possible role of improved recharge availability in developing the BEV-PHEV market and the priorities that different charging options should receive from the government require better understanding. This study reviews the charging issue and conceptualizes it into three interactions between the charge network and the travel network. With travel data from 3,755 drivers in the National Household Travel Survey, this paper estimates the distribution among U.S. consumers of (a) PHEV fuel-saving benefits by different recharge availability improvements, (b) range anxiety by different BEV ranges, and (c) willingness to pay for workplace and public charging in addition to home recharging. With the Oak Ridge National Laboratory MA3T model, the impact of three recharge improvements is quantified by the resulting increase in BEV-PHEV sales. Compared with workplace and public recharging improvements, home recharging improvement appears to have a greater impact on BEV-PHEV sales. The impact of improved recharging availability is shown to be amplified by a faster reduction in battery cost.

Lin, Zhenhong [ORNL; Greene, David L [ORNL

2012-01-01T23:59:59.000Z

212

Solar tracker motor having a fixed caliper and a translating caliper each with an electromagnetic brake system  

Science Conference Proceedings (OSTI)

Concepts and technologies described herein provide for an accurate and cost-effective method for rotating a solar array disk for tracking the movement of the sun. According to various aspects, a motor includes a fixed caliper and a translating caliper positioned adjacent to one another. Electromagnetically controlled brakes on the translating caliper grip the solar array disk while adjacent, but spaced apart, electromagnets on the fixed caliper and the translating caliper are energized to create an attractive force that pulls the translating caliper with the solar array disk toward the fixed caliper. After reaching the fixed caliper, brakes on the fixed caliper are engaged with the disk, brakes on the translating caliper are released from the disk, and the translating caliper is pushed back to the starting location where the process repeats until the desired rotation is completed.

Rau, Scott James

2013-01-29T23:59:59.000Z

213

Construction of narrow-band regenerative amplifier for momentum imaging spectroscopy of lithium dimer  

Science Conference Proceedings (OSTI)

We constructed a Ti:Sapphire narrow-band regenerative amplifier as the probe laser of the experiment of momentum imaging spectroscopy of lithium dimer. The spectral profile of the regenerative cavity was designed by three birefringent filters and a plate of etalon. With 1.1-mJ pumping by the second harmonics of Nd:YLF laser, mode-locked seed pulses were amplified to {approx}25 {mu}J at 1-kHz repetition, with the bandwidth of {approx}0.7 cm{sup -1}.

Matsuoka, Leo; Hashimoto, Masashi; Yokoyama, Keiichi [Quantum Beam Science Directorate, Japan Atomic Energy Agency, 8-1-7, Umemidai, Kizugawa, Kyoto 619-0215 (Japan)

2012-07-11T23:59:59.000Z

214

Pulse compression with a high-energy Nd:YAG regenerative amplifier system  

Science Conference Proceedings (OSTI)

We describe a method for the generation of readily synchronizable, near-transform-limited, 1064-nm, 6-mJ pulses with {lt}20-ps duration at a repetition rate of 20 Hz. The method employs chirped pulse amplification of spectrally broadened and temporally stretched pulses from a cw mode-locked Nd:YAG laser in a commercial Nd:YAG regenerative amplifier followed by pulse compression with a grating pair. Linear amplification subsequent to regenerative amplification is not required with this method, although higher energies would be easily obtained. {copyright} 1997 Optical Society of America

Venturo, V.A.; Joly, A.G.; Ray, D. [Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999 K2-14, Richland, Washington 99352 (United States)

1997-07-01T23:59:59.000Z

215

Identifying Options for Deep Reductions in Greenhouse Gas Emissions from California Transportation: Meeting an 80% Reduction Goal in 2050  

E-Print Network (OSTI)

fleet). Regenerative braking can improve energy efficiencyregenerative braking. Application of these technologies and strategies has the effect of lowering the energy

Yang, Christopher; McCollum, David L; McCarthy, Ryan; Leighty, Wayne

2008-01-01T23:59:59.000Z

216

Fuel Economy: Where the Energy Goes  

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

and lighter-weight technologies. Hybrids, plug-in hybrids, and electric vehicles use regenerative braking to recover some braking energy that would otherwise be lost. more......

217

Emissions of Criteria Pollutants, Toxic Air Pollutants, and Greenhouse Gases, From the Use of Alternative Transportation Modes and Fuels  

E-Print Network (OSTI)

acceleration energy recovered by regenerative braking Heavy-efficiencies, energy use by accessories, use of regenerativeregenerative braking can return “up to” 20% of propulsion energy;

Delucchi, Mark

1996-01-01T23:59:59.000Z

218

Microsoft Word - ev1.doc  

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

Running Lamps Power Windows, Mirrors & Door Locks AMFM Stereo wCassette and CD Player Regenerative Braking with Coastdown Electro-Hydraulic Braking with ABS Electro Windshield...

219

Regenerative fuel cell systems R{ampersand}D  

DOE Green Energy (OSTI)

The LLNL effort to develop electrochemical energy storage systems occupies a crucial regime in the hydrogen technologies` adoption process, between pure research/conceptual feasibility and near-term demonstrations of commercial systems This effort leaves as many component innovations as possible to others, and seeks to integrate the best systems from the highest performance, readily procurable components. The integration research and component testing being undertaken has already uncovered many operational and design issues that might hinder the adoption of breakthrough technologies being funded by the DOE and NASA A focus on delivering energy storage to the most weight-sensitive applications (aircraft and spacecraft) ensures that key technologies will be properly implemented and combined to perform in real, upcoming vehicle tests. The two key technologies that LLNL is aggressively implementing are proton exchange membrane (PEM) -based RFCs and high-performance tankage for storing compressed hydrogen and oxygen gases Tankage built from available technologies must be lightweight and must cope with volume penalties, gas permeation, and moisture handling to adequately furnish the breakthrough levels of specific energy that RFC systems offer Such multidisciplinary specifications have yet to be combined in the form of a commercial product. Were it not fat LLNL`s role as integrator leading industry, and as technical monitor promoting relevant specifications from within DOE-funded demonstration efforts in industry, such functional combinations of component performances would be years lather than months away. In particular, the DOE PRDA funded at Thiokol is on track to deliver vehicle-compatible hydrogen test tanks to support the Ford P2000 demonstration vehicle early next year The supervision of and close interaction with this industrial demonstration project is one important example of the real effort DOE is sponsoring at LLNL to bridge research into demonstrations Another DOE-funded industrial demonstration effort, with Proton Energy Systems as prime contractor, has recently been funded to introduce PEM-based energy storage into electrical utility applications Besides monitoring this field demonstration, LLNL will be directly supporting Proton Energy System`s technology development by testing electrolyzer and URFC cell stacks. In the cases of Proton Energy Systems, Thiokol, and Hamilton Standard (which currently offers the most advanced electrochemical components) LLNL has achieved close cooperation with industrial partners who hold the intellectual property. With these partners, LLNL is jointly developing systems relevant to a wide spectrum of applications, as depicted in Figure 1. These systems include high altitude long endurance (HALE) solar rechargeable aircraft (SRA), zero emission vehicles (ZEVs), hybrid energy storage/propulsion systems for spacecraft, energy storage for remote (off-grid) power sources, and peak shaving for on-grid applications (Carter 1998, de Groot 1997, Mitlitsky 1998, Mitlitsky 1996-a, Mitlitsky 1996-b, Mitlitsky 1996-c, Mitlitsky 1996-d, Mitlitsky 1994, Mitlitsky 1993). Figure 2 illustrates the original application for this set of innovations: solar powered aircraft This aircraft (Pathfinder) set the altitude record (71,500 ft) for all propeller- driven aircraft on July 7, 1997 (Mitlitsky 1998, NASA 1997).

Mitlitsky, F., LLNL

1998-06-24T23:59:59.000Z

220

Layered cathode materials for lithium ion rechargeable batteries  

DOE Patents (OSTI)

A number of materials with the composition Li.sub.1+xNi.sub..alpha.Mn.sub..beta.Co.sub..gamma.M'.sub..delta.O.sub.2-- zF.sub.z (M'=Mg,Zn,Al,Ga,B,Zr,Ti) for use with rechargeable batteries, wherein x is between about 0 and 0.3, .alpha. is between about 0.2 and 0.6, .beta. is between about 0.2 and 0.6, .gamma. is between about 0 and 0.3, .delta. is between about 0 and 0.15, and z is between about 0 and 0.2. Adding the above metal and fluorine dopants affects capacity, impedance, and stability of the layered oxide structure during electrochemical cycling.

Kang, Sun-Ho (Naperville, IL); Amine, Khalil (Downers Grove, IL)

2007-04-17T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Resilient design of recharging station networks for electric transportation vehicles  

DOE Green Energy (OSTI)

As societies shift to 'greener' means of transportation using electricity-driven vehicles one critical challenge we face is the creation of a robust and resilient infrastructure of recharging stations. A particular issue here is the optimal location of service stations. In this work, we consider the placement of battery replacing service station in a city network for which the normal traffic flow is known. For such known traffic flow, the service stations are placed such that the expected performance is maximized without changing the traffic flow. This is done for different scenarios in which roads, road junctions and service stations can fail with a given probability. To account for such failure probabilities, the previously developed facility interception model is extended. Results show that service station failures have a minimal impact on the performance following robust placement while road and road junction failures have larger impacts which are not mitigated easily by robust placement.

Kris Villez; Akshya Gupta; Venkat Venkatasubramanian

2011-08-01T23:59:59.000Z

222

Corrosion Control Using Regenerative Biofilms (CCURB) That Secrete Antimicrobials and Corrosion Inhibitors  

Science Conference Proceedings (OSTI)

This interim report covers the second year of research on the CCURB (Corrosion Control Using Regenerative Biofilms) project. This work seeks solutions to corrosion through the use of protective biofilms. To this end, the team has studied the use of both natural and genetically-engineered bacteria for corrosion inhibition of mild steel, aluminum, brass, and copper.

2000-05-16T23:59:59.000Z

223

Energy Saving Technology of Thermal Regenerative Compressed Air Dryer by Regenerates Adsorbent with Residual Heat  

Science Conference Proceedings (OSTI)

According to the characteristic of the compressed air dryer located at the same place with the air compressor, for the large capacity thermal regenerative compressed air dryer that the absorbent is regenerated by an electric heater, this thesis puts ... Keywords: Compressed air dryer, Regeneration, Heater, Residual heat, Energy saving

Zhang Mingzhu; Zhou Zhili; Li Hongtao; Zhang Yongbo

2009-10-01T23:59:59.000Z

224

Characterization of a high-gain picosecond flash-lamp-pumped Nd:YAG regenerative amplifier  

Science Conference Proceedings (OSTI)

We evaluate the performance of a novel 10-Hz picosecond Nd:YAG regenerative amplifier configured as a self-filtering unstable resonator. Pulse energies of approx.60 mJ in approx.100 psec at 1.06 ..mu..m are achieved using a single 6-mm-diameter Nd:YAG rod, while mode-matching requirements are minimized.

Dawson, M.D.; Schroeder, W.A.; Norwood, D.P.; Smirl, A.L.; Weston, J.; Ettelbrick, R.N.; Aubert, R.

1988-11-01T23:59:59.000Z

225

P.: Quick simulation methods for estimating the unreliability of regenerative models of large highly reliable systems  

E-Print Network (OSTI)

We investigate fast simulation techniques for estimating the unreliability in large Markovian models of highly reliable systems for which analytical0numerical techniques are difficult to apply+ We first show mathematically that for “small ” time horizons, the relative simulation error, when using the importance sampling techniques of failure biasing and forcing, remains bounded as component failure rates tend to zero+ This is in contrast to naive simulation where the relative error tends to infinity+ For “large ” time horizons where these techniques are not efficient, we use the approach of first bounding the unreliability in terms of regenerative-cycle-based measures and then estimating the regenerative-cycle-based measures using importance sampling; the latter can be done very efficiently+ We first use bounds developed in the literature for the asymptotic distribution of the time to hitting a rare set in regenerative systems+ However, these bounds are “close ” to the unreliability only for a certain range of time horizons+ We develop new bounds that make use of the special structure of the systems that we consider and are “close ” to the unreliability for a much wider range of time horizons+ These techniques extend to non-Markovian, highly reliable systems as long as the regenerative structure is preserved+ © 2004 Cambridge University Press 0269-9648004 $16+00 339340 M. K. Nakayama and P. Shahabuddin 1.

Marvin K. Nakayama; Perwez Shahabuddin

2004-01-01T23:59:59.000Z

226

Integration and Dynamics of a Renewable Regenerative Hydrogen Fuel Cell System  

E-Print Network (OSTI)

Integration and Dynamics of a Renewable Regenerative Hydrogen Fuel Cell System by Alvin Peter Cell System by Alvin Peter Bergen B.A.Sc., University of Victoria, 1994 M.Sc., University of University, hydrogen and electricity storage, and fuel cells. A special design feature of this test bed is the ability

Victoria, University of

227

Graphene-based nanocomposite materials for high-performance supercapacitors and lithium rechargeable batteries .  

E-Print Network (OSTI)

??Human activity and energy supplies mainly rely on the consumption of non-regenerative fossil fuels. With the gradual decrease of these carbon-based energy sources and the… (more)

Wang, Bei

228

Battery charging control methods, electric vehicle charging methods, battery charging apparatuses and rechargeable battery systems  

DOE Patents (OSTI)

Battery charging control methods, electric vehicle charging methods, battery charging apparatuses and rechargeable battery systems. According to one aspect, a battery charging control method includes accessing information regarding a presence of at least one of a surplus and a deficiency of electrical energy upon an electrical power distribution system at a plurality of different moments in time, and using the information, controlling an adjustment of an amount of the electrical energy provided from the electrical power distribution system to a rechargeable battery to charge the rechargeable battery.

Tuffner, Francis K. (Richland, WA); Kintner-Meyer, Michael C. W. (Richland, WA); Hammerstrom, Donald J. (West Richland, WA); Pratt, Richard M. (Richland, WA)

2012-05-22T23:59:59.000Z

229

Probabilistic Analysis of Rechargeable Batteries in a Photovoltaic Power Supply System  

DOE Green Energy (OSTI)

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

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

1998-11-24T23:59:59.000Z

230

Iron-Air Rechargeable Battery: A Robust and Inexpensive Iron-Air Rechargeable Battery for Grid-Scale Energy Storage  

Science Conference Proceedings (OSTI)

GRIDS Project: USC is developing an iron-air rechargeable battery for large-scale energy storage that could help integrate renewable energy sources into the electric grid. Iron-air batteries have the potential to store large amounts of energy at low cost—iron is inexpensive and abundant, while oxygen is freely obtained from the air we breathe. However, current iron-air battery technologies have suffered from low efficiency and short life spans. USC is working to dramatically increase the efficiency of the battery by placing chemical additives on the battery’s iron-based electrode and restructuring the catalysts at the molecular level on the battery’s air-based electrode. This can help the battery resist degradation and increase life span. The goal of the project is to develop a prototype iron-air battery at significantly cost lower than today’s best commercial batteries.

None

2010-10-01T23:59:59.000Z

231

On The Use of Eddy Current Brakes as Tunable, Fast Turn-On Viscous Dampers For Haptic Rendering  

E-Print Network (OSTI)

based on eddy current brakes because they are inexpensive, friction- e-mail: andrewg@cim.mcgill.ca e-mail: champ@cim.mcgill.ca e-mail: hayward@cim.mcgill.ca free, capable of fast turn-on time, and linear

Hayward, Vincent

232

CityCarControl : an electric vehicle drive-by-wire solution for distributed steering, braking and throttle control  

E-Print Network (OSTI)

In this paper, we propose CityCarControl, a system to manage the steering, braking, and throttle of a new class of intra-city electric vehicles. These vehicles have a focus on extreme light-weight and a small parking ...

Brown, Thomas B., M. Eng. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

233

Injection Timing Effects on Brake Fuel Conversion Efficiency and Engine System's Respones  

E-Print Network (OSTI)

Societal concerns on combustion-based fuel consumption are ever-increasing. With respect to internal combustion engines, this translates to a need to increase brake fuel conversion efficiency (BFCE). Diesel engines are a relatively efficient internal combustion engine to consider for numerous applications, but associated actions to mitigate certain exhaust emissions have generally deteriorated engine efficiency. Conventionally, diesel engine emission control has centered on in-cylinder techniques. Although these continue to hold promise, the industry trend is presently favoring the use of after-treatment devices which create new opportunities to improve the diesel engine's brake fuel conversion efficiency. This study focuses on injection timing effects on the combustion processes, engine efficiency, and the engine system's responses. The engine in the study is a medium duty diesel engine (capable of meeting US EPA Tier III off road emission standards) equipped with common rail direct fuel injection, variable geometry turbo charging, and interfaced with a custom built engine controller. The study found that injection timing greatly affected BFCE by changing the combustion phasing. BFCE would increase up to a maximum then begin to decrease as phasing became less favorable. Combustion phasing would change from being mostly mixing controlled combustion to premixed combustion as injection timing would advance allowing more time for fuel to mix during the ignition delay. Combustion phasing, in turn, would influence many other engine parameters. As injection timing is advanced, in-cylinder temperatures and pressures amplify, and intake and exhaust manifold pressures deteriorate. Rate of heat release and rate of heat transfer increase when injection timing is advanced. Turbocharger speed falls with the advancing injection timing. Torque, however, rose to a maximum then fell off again even though engine speed and fueling rate were held constant between different injection timings. Interestingly, the coefficient of heat transfer changes from a two peak curve to a smooth one peak curve as the injection timing is advanced further. The major conclusion of the study is that injection advance both positively and negatively influences the diesel engine's response which contributes to the brake fuel conversion efficiency.

McLean, James Elliott

2011-08-01T23:59:59.000Z

234

Feasibility Study Of Advanced Technology Hov Systems: Volume 2b: Emissions Impact Of Roadway-powered Electric Buses, Light-duty Vehicles, And Automobiles  

E-Print Network (OSTI)

of 20 mph. Regenerative braking affects energy consumptionenergy consumption is significantly affected by both the driving cycle, and to some extent, regenerative

Miller, Mark A.; Dato, Victor; Chira-chavala, Ted

1992-01-01T23:59:59.000Z

235

??? 1  

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

on hybrid electric vehicle Grade ability performance. Dynamic Performance test -HEV Regenerative braking energy reclaiming ratio test-EVHEV Developing the regenerative...

236

Recharging U.S. Energy Policy: Advocating for a National Renewable Portfolio Standard  

E-Print Network (OSTI)

Neff, Review of the Energy Policy Act of 2005 (Aug 2, 2005),Recharging U.S. Energy Policy: Advocating for a Nationalproposals, including the Energy Policy Act of 2005, Congress

Lunt, Robin J.

2007-01-01T23:59:59.000Z

237

Amorphous Metallic Glass as New High Power and Energy Density Anodes For Lithium Ion Rechargeable Batteries  

E-Print Network (OSTI)

We have investigated the use of aluminum based amorphous metallic glass as the anode in lithium ion rechargeable batteries. Amorphous metallic glasses have no long-range ordered microstructure; the atoms are less closely ...

Meng, Shirley Y.

238

Institutional innovation in water management : the case of Mexico City's recharge wells  

E-Print Network (OSTI)

This thesis explores the difference in adoption patterns of water recharge well technology in Mexico City both by local entities and the central city government. The research finds that this technology, originally designed ...

Correa Ibargüengoitia, José Antonio

2010-01-01T23:59:59.000Z

239

Energy-aware sparse approximation technique (EAST) for rechargeable wireless sensor networks  

Science Conference Proceedings (OSTI)

Due to non-homogeneous spread of sunlight, sensing nodes typically have non-uniform energy profiles in rechargeable Wireless Sensor Networks (WSNs). An energy-aware work load distribution is therefore necessary for good data accuracy while ensuring an ...

Rajib Rana; Wen Hu; Chun Tung Chou

2010-02-01T23:59:59.000Z

240

Electrically recharged battery employing a packed/spouted bed metal particle electrode  

SciTech Connect

A secondary metal air cell, employing a spouted/packed metal particle bed and an air electrode. More specifically a zinc air cell well suited for use in electric vehicles which is capable of being either electrically or hydraulically recharged.

Siu, Stanley C. (Alameda, CA); Evans, James W. (Piedmont, CA); Salas-Morales, Juan (Berkeley, CA)

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Theory of SEI Formation in Rechargeable Batteries: Capacity Fade, Accelerated Aging and Lifetime Prediction  

E-Print Network (OSTI)

Cycle life is critically important in applications of rechargeable batteries, but lifetime prediction is mostly based on empirical trends, rather than mathematical models. In practical lithium-ion batteries, capacity fade ...

Pinson, Matthew Bede

242

A study of factors affecting foot movement time in a braking maneuver  

E-Print Network (OSTI)

The nature of foot movement time (MT) in an actual braking maneuver and in a stationary vehicle was investigated regarding the effects of age and gender of the driver and nature of the stimulus to which the driver was responding. ANOVAs showed that the nature of the stimulus was not a significant factor in length of MT, but distance between pedals and age-gender levels were found to have significant effects. For the actual braking maneuver, gender and the gender-by-age interaction were significant; in the stationary vehicle portion of the study, they were not. Mean foot MT for both genders over all conditions were 0.28 seconds for women and 0.22 seconds for men. For older drivers, over all conditions, the mean foot MT was 0.25 seconds, and, for the younger drivers, 0.24 seconds. Linear regressions revealed high intra-subject variation in MT, which was corroborated by comparing with data from other parts of the study. Poor r2 values for fitting the data to Fitts' Law and to a modification of Fitts' Law were attributed to this high intra-subject variation and to obtaining data from only two different movement amplitudes. It was found that drivers' foot MTs tended to converge to a common value when controlling the vehicle at 88 km/hr (55 mph) as opposed to sitting in the driver's seat while the vehicle was stationary; mean foot MT for each subject group decreased, and differences between genders and age groups significantly diminished while the car was in motion.

Berman, Andrea Helene

1994-01-01T23:59:59.000Z

243

Materials issues in lithium ion rechargeable battery technology  

DOE Green Energy (OSTI)

Lithium ion rechargeable batteries are predicted to replace Ni/Cd as the workhorse consumer battery. The pace of development of this battery system is determined in large part by the availability of materials and the understanding of interfacial reactions between materials. Lithium ion technology is based on the use of two lithium intercalating electrodes. Carbon is the most commonly used anode material, while the cathode materials of choice have been layered lithium metal chalcogenides (LiMX{sub 2}) and lithium spinel-type compounds. Electrolytes may be either organic liquids or polymers. Although the first practical use of graphite intercalation compounds as battery anodes was reported in 1981 for molten salt cells and in 1983 for ambient temperature systems, it was not until Sony Energytech announced a new lithium ion intercalating carbon anode in 1990, that interest peaked. The reason for this heightened interest is that these electrochemical cells have the high energy density, high voltage and light weight of metallic lithium, but without the disadvantages of dendrite formation on charge, improving their safety and cycle life.

Doughty, D.H.

1995-07-01T23:59:59.000Z

244

Rechargeable batteries: advances since 1977. [Collection of US patents  

SciTech Connect

This book is based on US patents (including DOE patents) issued since January 1978 that deal with rechargeable batteries. It both supplies detailed technical information and can be used as a guide to the patent literature. Subjects treated are as follows: lead-acid batteries (grids, electrodes, terminals and connectors, polyolefin separators, polyvinyl chloride separators, other polymeric separators, other separators, electrolytes, venting techniques, hydrogen-oxygen recombination, general construction and fabrication), lithium batteries (metal chalcogenide cathodes, chalcogenide electrolyte compositions, chalcogenide batteries, lithium anodes, cathodes, lithium-thionyl chloride batteries, lithium-bromine batteries, electrolyte additives and other processes), sodium-sulfur batteries (general battery design, sulfur electrodes, sealing and casing design, current collectors, other processes), alkaline zinc and iron electrode batteries (silver-zinc, nickel-zinc, air-zinc, other zinc electrode processes, iron electrode batteries), zinc-halogen batteries (electrodes, electrolyte additives, other zinc-halogen batteries, zinc-manganese dioxide acid electrolyte), nickel-cadmium and nickel-hydrogen batteries (nickel-cadmium electrodes, other processes for nickel-cadmium batteries, nickel-hydrogen electrodes, other processes for nickel-hydrogen batteries, other nickel-containing batteries), and other battery systems (battery systems and design, other processes). (RWR)

Graham, R.W. (ed.)

1980-01-01T23:59:59.000Z

245

ASE Suppression in a Diode-Pumped Nd:YLF Regenerative Amplifier Using a Volume Bragg Grating  

Science Conference Proceedings (OSTI)

Instrument-limited suppression of out-of-band amplified spontaneous emission (ASE) is demonstrated for the first time in a Nd:YLF diode-pumped regenerative amplifier using a volume Bragg grating (VBG) as a cavity mirror.

Okishev, A.V.; Dorrer, C.; Smirnov, V.I.; Glebov, L.B.; Zuegel, J.D.

2007-10-11T23:59:59.000Z

246

A solar regenerative thermoelectrochemical converter (RTEC). Executive summary of final subcontract report  

DOE Green Energy (OSTI)

This is an executive summary of a final subcontract report that describes the successful completion of a closed-loop demonstration of a regenerative thermoelectromechanical device using solar heat input for the production of electricity. The full report, which contains a detailed description of the two-year effort, is currently subject to a government secrecy order which precludes public release of the information. Copies of the full report will be made available for general release whenever the secrecy order is lifted.

Townsend, C.W.; McHardy, J. [Hughes Aircraft Co., El Segundo, CA (United States)

1992-02-01T23:59:59.000Z

247

A continuous heat regenerative adsorption refrigerator using spiral plate heat exchanger as adsorbers: improvements  

SciTech Connect

Spiral plate heat exchangers as adsorbers have been proposed, and a prototype heat regenerative adsorption refrigerator using activated carbon-methanol pair has been developed and tested. Various improvements have been made, the authors get a specific cooling power for 2.6 kg-ice/day-kg adsorbent at the condition of generation temperature lower than 100 C. Discussions on the arrangements of thermal cycles and influences of design are shown.

Wang, R.Z.; Wu, J.Y.; Xu, Y.X. [Shanghai Jiao Tong Univ. (China). Inst. of Refrigeration and Cryogenics

1999-02-01T23:59:59.000Z

248

Optimum cycle parameters of coal fired closed cycle gas turbine in regenerative and combined cycle configurations  

Science Conference Proceedings (OSTI)

This paper presents the methodology developed for the estimation of thermodynamic performance and reports the optimum cycle parameters of coal fired CCGT in regenerative and combined cycle configurations using air, helium and carbon dioxide as working gases. A rigorous approach has been followed for the determination of the cycle efficiency by assuming the specific heat of working gases as a continuous function of temperature for accurate estimation of cycle parameters. 14 refs.

Rao, J.S.

1982-01-01T23:59:59.000Z

249

Clean Diesel: Overcoming Noxious Fumes  

E-Print Network (OSTI)

regenerative braking to capture cially in medium-sized trucks used for deliveries, and fuel-cell energy

Brodrick, Christie-Joy; Sperling, Daniel; Dwyer, Harry A.

2001-01-01T23:59:59.000Z

250

NREL: Vehicle Systems Analysis - Future Automotive Systems Technology...  

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

rolling resistance) Powertrain components (engine, motor, battery, and auxiliary loads) Regenerative braking Energy management strategies Battery life estimates Cost estimates...

251

untitled  

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

petroleum consumption and emissions * Optimized fuel efficiency and performance * Recover energy during regenerative braking * Use existing gas station infrastructure * Minimal...

252

ACCESS Magazine Fall 2001  

E-Print Network (OSTI)

regenerative braking to capture cially in medium-sized trucks used for deliveries, and fuel-cell energy

2001-01-01T23:59:59.000Z

253

Roadway Powered Electric Vehicle Project Track Construction And Testing Program Phase 3D  

E-Print Network (OSTI)

lines show energy flow during regenerative braking. Theregenerative braking, the motor (acting as a generator) is supplying as much energyregenerative braking above the base speed of 12 mph. The energy

Systems Control Technology, Inc.

1994-01-01T23:59:59.000Z

254

Microsoft Word - ford99.html  

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

FM Stereo Radio Tilt Steering Wheel Cabin Heat Dual Air Bags Power Steering (electro-hydraulic) Power Brakes Four Wheel Disc Brakes Four Wheel Anti-Lock Brakes Regenerative...

255

How Plug-in Hybrids Save Money  

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

How Plug-in Hybrids Save Money How Plug-in Hybrids Save Money Plug-in hybrid recharging Plug-in hybrids reduce fuel costs by Using high-capacity batteries that allow them to operate on electricity from the outlet for significant distances-electricity typically costs less than half as much as gasoline Using a larger electric motor that typically allows the vehicle to use electricity at higher speeds than regular hybrids Using regenerative braking to recover energy typically wasted when you apply the brakes Plug-in hybrid designs differ, and your driving habits, especially the distance you drive between re-charging, can have a big effect on your fuel bill. My Plug-in Hybrid Calculator estimates gasoline and electricity costs for any available plug-in hybrid using your driving habits and fuel costs.

256

Recharge Data Package for Hanford Single-Shell Tank Waste Management Areas  

Science Conference Proceedings (OSTI)

Pacific Northwest National Laboratory (PNNL) assists CH2M HILL Hanford Group, Inc., in its preparation of the Resource Conservation and Recovery Act (RCRA) Facility Investigation report. One of the PNNL tasks is to use existing information to estimate recharge rates for past and current conditions as well as future scenarios involving cleanup and closure of tank farms. The existing information includes recharge-relevant data collected during activities associated with a host of projects, including those of RCRA, the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), the CH2M HILL Tank Farm Vadose Zone Project, and the PNNL Remediation and Closure Science Project. As new information is published, the report contents can be updated. The objective of this data package was to use published data to provide recharge estimates for the scenarios being considered in the RCRA Facility Investigation. Recharge rates were estimated for areas that remain natural and undisturbed, areas where the vegetation has been disturbed, areas where both the vegetation and the soil have been disturbed, and areas that are engineered (e.g., surface barrier). The recharge estimates supplement the estimates provided by PNNL researchers in 2006 for the Hanford Site using additional field measurements and model analysis using weather data through 2006.

Fayer, Michael J.; Keller, Jason M.

2007-09-24T23:59:59.000Z

257

Effects of Natural Recharge on Gas Composition in the Larderello - Castelnuovo Area  

SciTech Connect

A study of the temporal behaviour of gas compsition in the Larderello-Castelnuovo area shows that this behaviour varies, depending on whether the wells are affected or not by natural recharge. Where no natural recharge exists, gas composition seems to be governed by chemical equilibria. The recharge water, and the steam it produces, mix with the fluid already existing in the reservoir. At Larderello (far from absorption areas) the gas composition resulting from this mixing does not undergo further changes by chemical reaction. This is due either to a lack of reactivity where there is no liquid phase or to an ineffective fluid-rock interaction. At Castelnuovo (close to absorption areas) the H{sub 2}S and CH{sub 4} contents in the gas have gradually decreased with the increase in recharge effects. The decrease in H{sub 2}S can be attributed to dissolution in liquid water and oxidation. Various hypotheses have been forwarded for the methane. The correlation existing between CH{sub 4} and N{sub 2} concentrations, even when methane decreases in the areas affected by recharge, suggests that CH{sub 4} may be governed by more than just the Fisher-Tropsch reaction.

D'Amore, Franco; Celati, Romano; Calore, Claudio; Bertrami, Rino

1983-12-15T23:59:59.000Z

258

Hybrid: Overview  

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

button highlighted Starting Button Cruising Button Passing Button Braking Button Stopped Button subbanner graphic: gray bar button highlighted Starting Button Cruising Button Passing Button Braking Button Stopped Button subbanner graphic: gray bar OVERVIEW Hybrid-electric vehicles combine the benefits of gasoline engines and electric motors to provide improved fuel economy. The engine provides most of the vehicle's power, and the electric motor provides additional power when needed, such as for accelerating and passing. This allows a smaller, more-efficient engine to be used. The electric power for the motor is generated from regenerative braking and from the gasoline engine, so hybrids don't have to be "plugged in" to an electrical outlet to recharge. stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection.

259

Hybrid: Overview  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

button highlighted Starting Button Cruising Button Passing Button Braking Button Stopped Button subbanner graphic: gray bar button highlighted Starting Button Cruising Button Passing Button Braking Button Stopped Button subbanner graphic: gray bar OVERVIEW Hybrid-electric vehicles combine the benefits of gasoline engines and electric motors to provide improved fuel economy. The engine provides most of the vehicle's power, and the electric motor provides additional power when needed, such as for accelerating and passing. This allows a smaller, more-efficient engine to be used. The electric power for the motor is generated from regenerative braking and from the gasoline engine, so hybrids don't have to be "plugged in" to an electrical outlet to recharge. stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric motor visible. The car is stopped at an intersection.

260

ESS 2012 Peer Review - Semi-Solid Rechargeable Power Sources - Taison Tan, 24M  

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

SEMI-SOLID RECHARGEABLE POWER SOURCES: FLEXIBLE, HIGH-PERFORMANCE SEMI-SOLID RECHARGEABLE POWER SOURCES: FLEXIBLE, HIGH-PERFORMANCE STORAGE FOR VEHICLES AND GRID AT ULTRALOW COST (<$0.10/Wh) 1. Technology Summary 3. Key Personnel * 24M: T. Tan, T. Wilder * MIT : Y.-M. Chiang, W. C. Carter, A. Belcher, P. Hammond * Rutgers: G. Amatucci This project is made possible in part through generous grants from the Department of Energy ARPA-e and the Defense Department DARPA agencies. * Revolutionary Electrical Energy Storage Concept * Combines best attributes of rechargeable batteries and flow cells * Decouples energy storage from power delivery * Semi-solid Electrodes Deliver High Energy Density, Low Cost 2. Technology Impact * Reduce Greenhouse Gases * Replaces inefficient, polluting gas peakers * Zero point-of-use emissions

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Apparatus and method for recharging a string a avalanche transistors within a pulse generator  

DOE Patents (OSTI)

An apparatus and method for recharging a string of avalanche transistors within a pulse generator is disclosed. A plurality of amplification stages are connected in series. Each stage includes an avalanche transistor and a capacitor. A trigger signal, causes the apparatus to generate a very high voltage pulse of a very brief duration which discharges the capacitors. Charge resistors inject current into the string of avalanche transistors at various points, recharging the capacitors. The method of the present invention includes the steps of supplying current to charge resistors from a power supply; using the charge resistors to charge capacitors connected to a set of serially connected avalanche transistors; triggering the avalanche transistors; generating a high-voltage pulse from the charge stored in the capacitors; and recharging the capacitors through the charge resistors.

Fulkerson, E. Stephen (Livermore, CA)

2000-01-01T23:59:59.000Z

262

Rechargeable battery charger system for charging testing, rejuvenation and preventative maintenance  

SciTech Connect

The present invention is directed to a method for automatically maintaining rechargeable batteries at maximum capacity and includes the steps of detecting the presence of a battery, deep discharging the battery to a predetermined level above cell reversal, recharging the battery to its rated capacity, discharging the battery at a controlled rate while measuring battery output voltage and determining whether its capacity is above or below a selected minimum, deep discharging and recharging if the battery is below the selected minimum until reversible memory effects are removed, providing a positive indication of battery failure, maintaining the full battery capacity by trickle charging, and periodically repeating the above steps to avoid onset of battery memory.

Yefsky, S.A.

1981-11-24T23:59:59.000Z

263

High-Capacity Micrometer-Sized Li2S Particles as Cathode Materials for Advanced Rechargeable Lithium-Ion Batteries  

E-Print Network (OSTI)

Lithium-Ion Batteries Yuan Yang, Guangyuan Zheng, Sumohan Misra,§ Johanna Nelson,§ Michael F. Toney as the cathode material for rechargeable lithium-ion batteries with high specific energy. INTRODUCTION Rechargeable lithium-ion batteries have been widely used in portable electronics and are promising

Cui, Yi

264

Integrated Modular Propulsion and Regenerative Electro-energy Storage System (IMPRESS) for small satellites  

DOE Green Energy (OSTI)

The IMPRESS is a significant advancement in space system technology as it is able to operate alternately as a fuel cell to produce electrical power from stored hydrogen and oxygen and as a water electrolyzer using electrical power to produce hydrogen and oxygen from stored water. The electrolysis of a controllable fraction of stored water can provide high Isp rocket propellants on demand. The heart of the IMPRESS is the Unitized Regenerative Fuel Cell (URFC), which produces power and electrolytically regenerates its reactants using a single stack of reversible cells. This integrated approach has several significant advantages over separate (battery) power and propulsion systems.

Mitlitsky, F. [Lawrence Livermore National Lab., CA (United States); de Groot, W. [Nyma, Inc., Brook Park, OH (United States); Butler, L.; McElroy, J. [United Technologies Corp., Windsor Locks, CT (United States). Hamilton Standard Div.

1996-09-01T23:59:59.000Z

265

Conceptual design of an advanced absorption cycle: the double-effect regenerative absorption refrigeration cycle  

DOE Green Energy (OSTI)

An advanced absorption refrigeration cycle was proposed as a heat-activated refrigeration system. Referred to as the double-effect regenerative absorption cycle of cycle 2R, it improves the performance of the conventional single-effect absorption cycle at high heat source temperatures. The performance of cycle 2R continually improves as input temperatures rise, in contrast to the conventional double-effect absorption cycle that has a sharp cut-off temperature below which it ceases to operate. Cycle 2R operates with two subcycles, the first-effect and the second-effect subcycles.

Dao, K.

1978-09-01T23:59:59.000Z

266

Effect of shale-water recharge on brine and gas recovery from geopressured reservoirs  

DOE Green Energy (OSTI)

The concept of shale-water recharge has often been discussed and preliminary assessments of its significance in the recovery of geopressured fluids have been given previously. The present study uses the Pleasant Bayou Reservoir data as a base case and varies the shale formation properties to investigate their impact on brine and gas recovery. The parametric calculations, based on semi-analytic solutions and finite-difference techniques, show that for vertical shale permeabilities which are at least of the order of 10/sup -5/ md, shale recharge will constitute an important reservoir drive mechanism and will result in much larger fluid recovery than that possible in the absence of shale dewatering.

Riney, T.D.; Garg, S.K.; Wallace, R.H. Jr.

1985-01-01T23:59:59.000Z

267

Rechargeable Lithium-Air Batteries: Development of Ultra High Specific Energy Rechargeable Lithium-Air Batteries Based on Protected Lithium Metal Electrodes  

SciTech Connect

BEEST Project: PolyPlus is developing the world’s first commercially available rechargeable lithium-air (Li-Air) battery. Li-Air batteries are better than the Li-Ion batteries used in most EVs today because they breathe in air from the atmosphere for use as an active material in the battery, which greatly decreases its weight. Li-Air batteries also store nearly 700% as much energy as traditional Li-Ion batteries. A lighter battery would improve the range of EVs dramatically. Polyplus is on track to making a critical breakthrough: the first manufacturable protective membrane between its lithium–based negative electrode and the reaction chamber where it reacts with oxygen from the air. This gives the battery the unique ability to recharge by moving lithium in and out of the battery’s reaction chamber for storage until the battery needs to discharge once again. Until now, engineers had been unable to create the complex packaging and air-breathing components required to turn Li-Air batteries into rechargeable systems.

2010-07-01T23:59:59.000Z

268

ESS 2012 Peer Review - Novel Regenerative Fuel Cells based on Anion Exchange Membranes - Katherine Ayers, Proton Onsite  

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

l l R ti F l C ll b d A i E h M b f Novel Regenerative Fuel Cells based on Anion Exchange Membranes for Novel Regenerative Fuel Cells based on Anion Exchange Membranes for g g Affordable Renewable Energy Storage Affordable Renewable Energy Storage Affordable Renewable Energy Storage PI: Dr Katherine Ayers Proton Energy Systems kayers@protononsite com PI: Dr. Katherine Ayers, Proton Energy Systems, kayers@protononsite.com y , gy y , y @p A h Key Challenges and Progress Approach Key Challenges and Progress Approach Key Challenges and Progress pp N PGM t l t ( l t l ) Fuel Cell Durability: Non-PGM catalysts (electrolyzer) * Leverage Proton experience in large scale Fuel Cell Durability: o G cata ysts (e ect o y e ) * Leverage Proton experience in large scale Anode flooding and cathode * Translation from RDE to cell results electrolysis and regenerative fuel

269

Regenerative zinc/air and zinc/ferricyanide batteries for stationary power applications  

DOE Green Energy (OSTI)

The authors report a novel configuration for a zinc-particle, packed-bed anode in which an open structure of high hydraulic permeability is maintained indefinitely in a cell with closely spaced walls by the formation of particle bridges and associated gaps. The configuration minimizes electrolyte pumping costs, allows rapid refueling and partial recharge, and provides for 100% zinc consumption. This approach benefits zinc/air fuel batteries by allowing nearly continuous operation and fuel recycle without commercial infrastructure; it benefits Zn/[Fe(CN){sub 6}]{sup {minus}3} batteries by eliminating shape-change and polarization problems found with planar anodes.

Cooper, J.F.; Keene, L.E.; Noring, J.; Maimoni, A.; Peterman, K.

1994-05-01T23:59:59.000Z

270

Conceptual design of a 10MW regenerative isobutane geothermal power plant. Technical report No. 18  

DOE Green Energy (OSTI)

At present, there are basically three different systems for converting energy in geothermal fluid into power: vapor-flashing system, total flow system, and binary system. A comparison of the power production processes was made on the basis of work output in Kwh per 1000 pounds of geothermal fluid for self flowing wells with wellhead pressure of 100 psia and for wells with downhole pumps. For simplicity, the assumptions were made that the enthalpy of the geothermal fluid in the reservoir is approximately equal to that at the wellhead, that the thermodynamic properties of geothermal fluid may be approximated by those of water, and that the pressure effects on the properties of fluid are negligible. The results showed that the performance of the two-stage vapor-flashing system is not appreciably improved by using a downhole pump. The total flow system is simple, but its success depends mainly on the development of a reliable machine with sufficiently high thermal efficiency. The regenerative isobutane system is impractical, if the geothermal fluid temperature is below 380/sup 0/F. But, when the brine temperatures range from 485 to 600/sup 0/F, the regenerative isobutane system with downhole pump exhibits superior performance as compared to two-stage vapor-flashing system, basic isobutane system, or total flow system.

Gupta, A.K.; Chou, J.C.S.

1976-10-15T23:59:59.000Z

271

The Influence of Catalysts on Discharge and Charge Voltages of Rechargeable Li–Oxygen Batteries  

E-Print Network (OSTI)

This study revealed the strong influence of carbon, Au/C, and Pt/C catalysts on the charge and discharge voltages of rechargeable Li–O[subscript 2] batteries. Li–O[subscript 2] single-cell measurements showed that Au/C had ...

Gasteiger, Hubert A.

272

Platinum-Gold Nanoparticles: A Highly Active Bifunctional Electrocatalyst for Rechargeable Lithium-Air Batteries  

E-Print Network (OSTI)

PtAu nanoparticles (NPs) were shown to strongly enhance the kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in rechargeable Li?O2 cells. Li?O2 cells with PtAu/C were found to exhibit the ...

Lu, Yi-Chun

273

Phase transformations and microstructural design of lithiated metal anodes for lithium-ion rechargeable batteries  

E-Print Network (OSTI)

There has been great recent interest in lithium storage at the anode of Li-ion rechargeable battery by alloying with metals such as Al, Sn, and Sb, or metalloids such as Si, as an alternative to the intercalation of graphite. ...

Limthongkul, Pimpa, 1975-

2002-01-01T23:59:59.000Z

274

Structural micro-porous carbon anode for rechargeable lithium-ion batteries  

DOE Patents (OSTI)

A secondary battery having a rechargeable lithium-containing anode, a cathode and a separator positioned between the cathode and anode with an organic electrolyte solution absorbed therein is provided. The anode comprises three-dimensional microporous carbon structures synthesized from polymeric high internal phase emulsions or materials derived from this emulsion source, i.e., granules, powders, etc. 6 figs.

Delnick, F.M.; Even, W.R. Jr.; Sylwester, A.P.; Wang, J.C.F.; Zifer, T.

1995-06-20T23:59:59.000Z

275

Structural micro-porous carbon anode for rechargeable lithium-ion batteries  

DOE Patents (OSTI)

A secondary battery having a rechargeable lithium-containing anode, a cathode and a separator positioned between the cathode and anode with an organic electrolyte solution absorbed therein is provided. The anode comprises three-dimensional microporous carbon structures synthesized from polymeric high internal phase emulsions or materials derived from this emulsion source, i.e., granules, powders, etc.

Delnick, Frank M. (Albuquerque, NM); Even, Jr., William R. (Livermore, CA); Sylwester, Alan P. (Washington, DC); Wang, James C. F. (Livermore, CA); Zifer, Thomas (Manteca, CA)

1995-01-01T23:59:59.000Z

276

Electrically recharged battery employing a packed/spouted bed metal particle electrode  

DOE Patents (OSTI)

A secondary metal air cell, employing a spouted/packed metal particle bed and an air electrode, is described. More specifically a zinc air cell well suited for use in electric vehicles which is capable of being either electrically or hydraulically recharged. 5 figs.

Siu, S.C.; Evans, J.W.; Salas-Morales, J.

1995-08-15T23:59:59.000Z

277

A preliminary assessment of asbestos awareness and control measures in brake and clutch repair services in Knoxville and Knox County, Tennessee  

SciTech Connect

The pending OSHA standard revision proposed in 1990 to lower the asbestos Permissible Exposure Limit (PEL) and to mandate effective asbestos control measures (ACM) in brake and clutch assembly work may have a profound effect on industries involved in such operations. Health protection of workers will be improved and costs of improved control methods and training will increase. Considering these facts, this preliminary study was designed to assess the level of worker and management awareness of asbestos hazards associated with brake and clutch repair and to determine what ACM had been implemented by businesses in Knoxville and Knox County, Tennessee. The study, in a metropolitan area of approximately 336,000 people, revealed eight different categories of businesses conducting brake and clutch repair work with an estimated 363 potentially exposed employees. Results of the study suggest that managers and employees of the 80 businesses studied were in need of asbestos hazard awareness training and more adequate asbestos control measures.

Phillips, C.C. (Oak Ridge National Lab., TN (United States)); Hamilton, C.B.

1994-04-01T23:59:59.000Z

278

Scanning Probe Recognition Microscopy -A New Tool for Quantitative Mapping of Nanoscale Properties in Regenerative Neural Cell Systems  

E-Print Network (OSTI)

in Regenerative Neural Cell Systems Virginia M. Ayres, V. Tiryaki, Michigan State University; A. Khan, Western) [2] Astrocytes on 2D substrates have a pathological morphology (A). Astrocytes on 3D nanofibrillar Purdue University, and her B.A. in Physics and Biophysics from the Johns Hopkins University. She

Ayres, Virginia

279

Diode-pumped Cr:LiSAF all-solid-state femtosecond oscillator and regenerative amplifier  

Science Conference Proceedings (OSTI)

An all-solid-state tunable diode-pumped Cr{sup 3+}:LiSrAlF{sub 6} (Cr:LiSAF) regenerative amplifier, seeded by a tunable diode-pumped Cr:LiSAF femtosecond oscillator, has been demonstrated for the first time to our knowledge. The oscillator was tunable over 75 nm and generated pulses as short as 24 fs. As much as 70 mW average output power was obtained with pulses of 40-fs duration. The amplifier produced recompressed pulses of less than 200-fs duration with energies exceeding 1{mu}J at a repetition rate as high as 25 kHz. {copyright} {ital 1995} {ital Optical} {ital Society} {ital of} {ital America}.

Mellish, R.; Barry, N.P.; Hyde, S.C.W.; Jones, R.; French, P.M.W.; Taylor, J.R. [Femtosecond Optics Group, Department of Physics, Imperial College of Science and Technology, Prince Consort Road, London SW7 2BZ (United Kingdom); van der Poel, C.J.; Valster, A. [Philips Optoelectronics Centre, Prof. Holstlaan 4, 5656 AA Eindhoven (Netherlands)

1995-11-15T23:59:59.000Z

280

Regenerative Fuel Cells: Renewable Energy Storage Devices Based on Neutral Water Input  

SciTech Connect

GRIDS Project: Proton Energy Systems is developing an energy storage device that converts water to hydrogen fuel when excess electricity is available, and then uses hydrogen to generate electricity when energy is needed. The system includes an electrolyzer, which generates and separates hydrogen and oxygen for storage, and a fuel cell which converts the hydrogen and oxygen back to electricity. Traditional systems use acidic membranes, and require expensive materials including platinum and titanium for key parts of the system. In contrast, Proton Energy Systems’ new system will use an inexpensive alkaline membrane and will contain only inexpensive metals such as nickel and stainless steel. If successful, Proton Energy Systems’ system will have similar performance to today’s regenerative fuel cell systems at a fraction of the cost, and can be used to store electricity on the electric grid.

None

2010-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Regeneratively cooled coal combustor/gasifier with integral dry ash removal  

DOE Patents (OSTI)

A coal combustor/gasifier is disclosed which produces a low or medium combustion gas fired furnances or boilers. Two concentric shells define a combustion air flows to provide regenerative cooling of the inner shell for dry ash operation. A fuel flow and a combustion air flow having opposed swirls are mixed and burned in a mixing-combustion portion of the combustion volume and the ash laden combustion products flow with a residual swirl into an ash separation region. The ash is cooled below the fusion temperature and is moved to the wall by centrifugal force where it is entrained in the cool wall boundary layer. The boundary layer is stabilized against ash re-entrainment as it is moved to an ash removal annulus by a flow of air from the plenum through slots in the inner shell, and by suction on an ash removal skimmer slot.

Beaufrere, A.H.

1982-04-30T23:59:59.000Z

282

Materials as a Key to Electro-Mobility with Rechargeable LI Batteries  

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

Materials as a Key to Electro-Mobility with Rechargeable LI Batteries Materials as a Key to Electro-Mobility with Rechargeable LI Batteries Speaker(s): Martin Winter Date: February 11, 2013 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Robert Kostecki The lithium ion technology is playing a key role in the electrification of the propulsion system in hybrid electric vehicles (HEVs) and in pure electric vehicles (EVs). The chemist and materials scientists faces this challenge, which derives from the demands for large-scale energy storage and conversion devices for electric propulsion purposes, by development and application of innovative battery components and concepts. The lithium ion battery has been introduced into the market by 1990/1991 and only by the mid 1990ies significant numbers of batteries have been produced. Within a

283

Method of preparation of carbon materials for use as electrodes in rechargeable batteries  

DOE Patents (OSTI)

A method of producing carbon materials for use as electrodes in rechargeable batteries. Electrodes prepared from these carbon materials exhibit intercalation efficiencies of .apprxeq.80% for lithium, low irreversible loss of lithium, long cycle life, are capable of sustaining a high rates of discharge and are cheap and easy to manufacture. The method comprises a novel two-step stabilization process in which polymeric precursor materials are stabilized by first heating in an inert atmosphere and subsequently heating in air. During the stabilization process, the polymeric precursor material can be agitated to reduce particle fusion and promote mass transfer of oxygen and water vapor. The stabilized, polymeric precursor materials can then be converted to a synthetic carbon, suitable for fabricating electrodes for use in rechargeable batteries, by heating to a high temperature in a flowing inert atmosphere.

Doddapaneni, Narayan (Alburquerque, NM); Wang, James C. F. (Livermore, CA); Crocker, Robert W. (Fremont, CA); Ingersoll, David (Alburquerque, NM); Firsich, David W. (Dayton, OH)

1999-01-01T23:59:59.000Z

284

NANOSTRUCTURED METAL OXIDES FOR ANODES OF LI-ION RECHARGEABLE BATTERIES  

DOE Green Energy (OSTI)

The aligned nanorods of Co{sub 3}O{sub 4} and nanoporous hollow spheres (NHS) of SnO{sub 2} and Mn{sub 2}O{sub 3} were investigated as the anodes for Li-ion rechargeable batteries. The Co{sub 3}O{sub 4} nanorods demonstrated 1433 mAh/g reversible capacity. The NHS of SnO{sub 2} and Mn{sub 2}O{sub 3} delivered 400 mAh/g and 250 mAh/g capacities respectively in multiple galvonastatic discharge-charge cycles. It was found that high capacity of NHS of metal oxides is sustainable attributed to their unique structure that maintains material integrity during cycling. The nanostructured metal oxides exhibit great potential as the new anode materials for Li-ion rechargeable batteries with high energy density, low cost and inherent safety.

Au, M.

2009-12-04T23:59:59.000Z

285

Santa Rosa Geysers Recharge Project: GEO-98-001. Final Report  

DOE Green Energy (OSTI)

The Geysers steamfields in northern Sonoma County have produced reliable ''green'' power for many years. An impediment to long-term continued production has been the ability to provide a reliable source of injection water to replace water extracted and lost in the form of steam. The steamfield operators have historcially used cooling towers to recycle a small portion of the steam and have collected water during the winter months using stream extraction. These two sources, however, could not by themselves sustain the steamfield in the long term. The Lake County Reclaimed Water Project (SEGEP) was inititated in 1997 and provides another source of steamfield replenishment water. The Santa Rosa Geysers Recharge Project provides another significant step in replenishing the steamfield. In addition, the Santa Rosa Geysers Recharge Project has been built with capacity to potentially meet virtually all injection water requirements, when combined with these other sources. Figure 2.1 graphically depicts the combination of injection sources.

Brauner, Edwin Jr.; Carlson, Daniel C.

2002-10-01T23:59:59.000Z

286

Tennessee Valley Authority Smart Modal Area Recharge Terminal (SMART) Station Project  

Science Conference Proceedings (OSTI)

EPRI and the Tennessee Valley Authority (TVA) collaborated to design and build solar-assisted electric vehicle (EV) charging stations, referred to as a TVA Smart Modal Area Recharge Terminal, or TVA SMART Station. These stations—which combine photovoltaic generation, EV charging, and stationary battery storage—have been deployed across the State of Tennessee. In specific, the five deployed stations provide a total of 72 kW of solar generation capacity, 36 parking spaces equipped for ...

2012-11-12T23:59:59.000Z

287

Estimation of Groundwater Recharge at Pahute Mesa using the Chloride Mass-Balance Method  

SciTech Connect

Groundwater recharge on Pahute Mesa was estimated using the chloride mass-balance (CMB) method. This method relies on the conservative properties of chloride to trace its movement from the atmosphere as dry- and wet-deposition through the soil zone and ultimately to the saturated zone. Typically, the CMB method assumes no mixing of groundwater with different chloride concentrations; however, because groundwater is thought to flow into Pahute Mesa from valleys north of Pahute Mesa, groundwater flow rates (i.e., underflow) and chloride concentrations from Kawich Valley and Gold Flat were carefully considered. Precipitation was measured with bulk and tipping-bucket precipitation gauges installed for this study at six sites on Pahute Mesa. These data, along with historical precipitation amounts from gauges on Pahute Mesa and estimates from the PRISM model, were evaluated to estimate mean annual precipitation. Chloride deposition from the atmosphere was estimated by analyzing quarterly samples of wet- and dry-deposition for chloride in the bulk gauges and evaluating chloride wet-deposition amounts measured at other locations by the National Atmospheric Deposition Program. Mean chloride concentrations in groundwater were estimated using data from the UGTA Geochemistry Database, data from other reports, and data from samples collected from emplacement boreholes for this study. Calculations were conducted assuming both no underflow and underflow from Kawich Valley and Gold Flat. Model results estimate recharge to be 30 mm/yr with a standard deviation of 18 mm/yr on Pahute Mesa, for elevations >1800 m amsl. These estimates assume Pahute Mesa recharge mixes completely with underflow from Kawich Valley and Gold Flat. The model assumes that precipitation, chloride concentration in bulk deposition, underflow and its chloride concentration, have been constant over the length of time of recharge.

Cooper, Clay A [DRI] [DRI; Hershey, Ronald L [DRI] [DRI; Healey, John M [DRI] [DRI; Lyles, Brad F [DRI] [DRI

2013-07-01T23:59:59.000Z

288

Estimation of natural ground water recharge for the performance assessment of a low-level waste disposal facility at the Hanford Site  

SciTech Connect

In 1994, the Pacific Northwest Laboratory (PNL) initiated the Recharge Task, under the PNL Vitrification Technology Development (PVTD) project, to assist Westinghouse Hanford Company (WHC) in designing and assessing the performance of a low-level waste (LLW) disposal facility for the US Department of Energy (DOE). The Recharge Task was established to address the issue of ground water recharge in and around the LLW facility and throughout the Hanford Site as it affects the unconfined aquifer under the facility. The objectives of this report are to summarize the current knowledge of natural ground water recharge at the Hanford Site and to outline the work that must be completed in order to provide defensible estimates of recharge for use in the performance assessment of this LLW disposal facility. Recharge studies at the Hanford Site indicate that recharge rates are highly variable, ranging from nearly zero to greater than 100 mm/yr depending on precipitation, vegetative cover, and soil types. Coarse-textured soils without plants yielded the greatest recharge. Finer-textured soils, with or without plants, yielded the least. Lysimeters provided accurate, short-term measurements of recharge as well as water-balance data for the soil-atmosphere interface and root zone. Tracers provided estimates of longer-term average recharge rates in undisturbed settings. Numerical models demonstrated the sensitivity of recharge rates to different processes and forecast recharge rates for different conditions. All of these tools (lysimetry, tracers, and numerical models) are considered vital to the development of defensible estimates of natural ground water recharge rates for the performance assessment of a LLW disposal facility at the Hanford Site.

Rockhold, M.L.; Fayer, M.J.; Kincaid, C.T.; Gee, G.W.

1995-03-01T23:59:59.000Z

289

PRISM 2.0: Regional Energy and Economic Model Development and Initial Application, US-REGEN Model Documentation  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) has developed a new energy-economy model of the United States under the PRISM 2.0 project called the U.S. Regional Economy, Greenhouse Gas, and Energy (US-REGEN) Model. The model combines a detailed dispatch and capacity expansion model of the United States electric sector with a high-level dynamic computable general equilibrium (CGE) model of the United States economy. ...

2013-09-17T23:59:59.000Z

290

Regeneratively cooled coal combustor/gasifier with integral dry ash removal  

DOE Patents (OSTI)

A coal combustor/gasifier is disclosed which produces a low or medium combustion gas for further combustion in modified oil or gas fired furnaces or boilers. Two concentric shells define a combustion volume within the inner shell and a plenum between them through which combustion air flows to provide regenerative cooling of the inner shell for dry ash operation. A fuel flow and a combustion air flow having opposed swirls are mixed and burned in a mixing-combustion portion of the combustion volume and the ash laden combustion products flow with a residual swirl into an ash separation region. The ash is cooled below the fusion temperature and is moved to the wall by centrifugal force where it is entrained in the cool wall boundary layer. The boundary layer is stabilized against ash re-entrainment as it is moved to an ash removal annulus by a flow of air from the plenum through slots in the inner shell, and by suction on an ash removal skimmer slot.

Beaufrere, Albert H. (Huntington, NY)

1983-10-04T23:59:59.000Z

291

Optimization and Demonstration of a Solid Oxide Regenerative Fuel Cell System  

Science Conference Proceedings (OSTI)

Single cell solid oxide regenerative fuel cells (SORFCs) have been demonstrated for over 1000 hours of operation at degradation rates as low as 0.5% per thousand hours for current densities as high as 300mA/cm{sup 2}. Efficiency levels (fuel cell power out vs. electrolysis power in) have been demonstrated in excess of 80% at 100mA/cm{sup 2}. All testing has been performed with metallic based interconnects and non-noble metal electrodes in order to limit fabrication costs for commercial considerations. The SORFC cell technology will be scaled up to a 1kW sized stack which will be demonstrated in Year 2 of the program. A self contained SORFC system requires efficient thermal management in order to maintain operating temperatures during exothermic and endothermic operational modes. The use of LiF as a phase change material (PCM) was selected as the optimum thermal storage medium by virtue of its superior thermal energy density by volume. Thermal storage experiments were performed using LiF and a simulated SORFC stack. The thermal storage concept was deemed to be technically viable for larger well insulated systems, although it would not enable a high efficiency thermally self-sufficient SORFC system at the 1 kW level.

James F. McElroy; Darren B. Hickey; Fred Mitlitsky

2006-09-30T23:59:59.000Z

292

Performance calculations and research direction for a water enhanced regenerative gas turbine cycle  

DOE Green Energy (OSTI)

A cycle has been conceived that combines compressor cooling, humidification, and regenerative air heating with the added enhancement of direct injection of water into the air flow. In this cycle it is proposed that a fine mist of water be injected into the compressor air stream and a spray or film of water into the regenerator air stream. Water injection into the compressor air flow realizes several benefits: it cools the air flow, reducing the power required for compression and increasing the potential for exhaust heat recovery; it adds mass to the air stream, increasing the power produced by expansion; and it reduces the amount of cooling bleed air required by increasing the specific heat and decreasing the temperature of the cooling air stream. The greatest benefit would be derived from spraying a fine mist of water directly into the existing air flow into or before the compressor so that cooling and compression would occur simultaneously. This may be accomplished by entraining the water droplets in the inlet air flow or by introducing the water in stages during compression. An alternative and less technically challenging approach is to extract the air stream to a saturation chamber and then reintroduce the air stream into the compressor. This approach is not as desirable because it would increase the equipment cost and add a significant pressure drop penalty. The second use of water in this cycle is in water-assisted regeneration.

Rogers, L.H. [USDOE Morgantown Energy Technology Center, WV (United States); Archer, D.H. [Carnegie-Mellon Univ., Pittsburgh, PA (United States)

1993-09-01T23:59:59.000Z

293

An electromagnetic and thermodynamic lumped parameter model of an explosively driven regenerative magnetohydrodynamic generator  

DOE Green Energy (OSTI)

The objective of this research is to develop a simple, yet accurate, lumped parameter mathematical model for an explosively driven magnetohydrodynamic generator that can predict the pulse power variables of voltage and current from startup through regenerative operation. The inputs to the model will be the plasma properties entering the generator as predicted by the explosive shock model of Reference [1]. The strategy used was to simplify electromagnetic and thermodynamic three dimensional effects into a zero dimensional model. The model will provide a convenient tool for researchers to optimize designs to be used in pulse power applications. The model is validated using experimental data of Reference [1]. An overview of the operation of the explosively driven generator is first presented. Then a simplified electrical circuit model that describes basic performance of the device is developed. Then a lumped parameter model that incorporates the coupled electromagnetic and thermodynamic effects that govern generator performance is described and developed. The model is based on fundamental physical principles and parameters that were either obtained directly from design data or estimated from experimental data. The model was used to obtain parameter sensitivities and predict beyond the limits observed in the experiments to the levels desired by the potential Department of Defense sponsors. The model identifies process limitations that provide direction for future research.

Morrison, J.L.

1992-12-01T23:59:59.000Z

294

Review of thermally regenerative electrochemical systems. Volume I. Synopsis and executive summary  

SciTech Connect

Thermally regenerative electrochemical systems (TRES) are closed systems that convert heat into electricity in an electrochemical heat engine that is Carnot cycle limited in efficiency. Past and present work on such systems is reviewed. Two broad classes of TRES are based on the types of energy inputs required for regeneration: thermal alone and coupled thermal and electrolytic. The thermal regeneration alone encompasses electrochemical systems (galvanic or fuel cells) in which one or more products are formed. The regeneration can be performed in single or multiple steps. The compounds include metal hydrides, halides, oxides, chalcogenides, and alloys or bimetallic systems. The coupled thermal and electrolytic regeneration encompasses electrochemical systems (galvanic or fuel cells) regenerated by electrolysis at a different temperature or different pressure. Examples include metal halides and water. Thermogalvanic or nonisothermal cells are included in this category. Also included are electrochemical engines in which the working electroactive fluid is isothermally expanded through an electrolyte. TRES cover temperature ranges from about 20/sup 0/C to 1000/sup 0/C. Engines with power outputs of 0.1 mW/cm/sup 2/ to 1 W/cm/sup 2/ have been demonstrated. Recommendations are made of areas of research in science and engineering that would have long-range benefit to a TRES program.

Chum, H. L.; Osteryoung, R. A.

1980-08-01T23:59:59.000Z

295

U.S. Energy Information Administration (EIA) - Sector  

Gasoline and Diesel Fuel Update (EIA)

0. Description of battery-powered electric vehicles 0. Description of battery-powered electric vehicles Vehicle type Description Micro or "mild" hybrid Vehicles with ICEs, larger batteries, and electrically powered auxiliary systems that allow the engine to be turned off when the vehicle is coasting or idle and then be quickly restarted. Regenerative braking recharges the batteries but does not provide power to the wheels for traction. Micro and mild hybrids are not connected to the electrical grid for recharging and are not considered as HEVs in this analysis. Full hybrid electric (HEV) Vehicles that combine an internal combustion engine with electric propulsion from an electric motor and battery. The vehicle battery is recharged by capturing some of the energy lost during braking. Stored energy is used to eliminate engine operation during idle, operate the vehicle at slow speeds for limited distances, and assist the ICE drivetrain throughout its drive cycle. Full HEV systems are configured in parallel, series, or power split systems, depending on how power is delivered to the drivetrain. HEVs are not connected to the electric grid for recharging.

296

Novel Energy Sources -Material Architecture and Charge Transport in Solid State Ionic Materials for Rechargeable Li ion Batteries  

Science Conference Proceedings (OSTI)

Since its introduction in the consumer market at the beginning of 1990s by Sony Corporation ‘Li-ion rechargeable battery’ and ‘LiCoO2 cathode’ is an inseparable couple for highly reliable practical applications. However, a separation is inevitable as Li-ion rechargeable battery industry demand more and more from this well serving cathode. Spinel-type lithium manganate (e.g., LiMn2O4), lithium-based layered oxide materials (e.g., LiNiO2) and lithium-based olivine-type compounds (e.g., LiFePO4) are nowadays being extensively studied for application as alternate cathode materials in Li-ion rechargeable batteries. Primary goal of this project was the advancement of Li-ion rechargeable battery to meet the future demands of the energy sector. Major part of the research emphasized on the investigation of electrodes and solid electrolyte materials for improving the charge transport properties in Li-ion rechargeable batteries. Theoretical computational methods were used to select electrodes and electrolyte material with enhanced structural and physical properties. The effect of nano-particles on enhancing the battery performance was also examined. Satisfactory progress has been made in the bulk form and our efforts on realizing micro-battery based on thin films is close to give dividend and work is progressing well in this direction.

Katiyar, Ram S; Gómez, M; Majumder, S B; Morell, G; Tomar, M S; Smotkin, E; Bhattacharya, P; Ishikawa, Y

2009-01-19T23:59:59.000Z

297

Tennessee Valley Authority Smart Modal Area Recharge Terminal (SMART) Station Project  

Science Conference Proceedings (OSTI)

This report documents the base design for a Smart Modal Area Recharge Terminal (SMART) station. The base design is for a 10-space public vehicle charging facility, incorporating a solar photo-voltaic array/canopy with battery storage. Many of the design recommendations are based on the system design experience of Eaton Corporation in related energy applications and cover safety compliance and field integration. The design effort was conducted not only to develop a base design that can be used by other en...

2010-06-14T23:59:59.000Z

298

Cathode limited charge transport and performance of thin-film rechargeable lithium batteries  

DOE Green Energy (OSTI)

Several types of thin-film rechargeable batteries based on lithium metal anodes and amorphous V{sub 2}O{sub 5} (aV{sub 2}O{sub 5}), LiMn{sub 2}O{sub 4}, and LiCoO{sub 2} cathodes have been investigated in this laboratory. In all cases, the current density of these cells is limited by lithium ion transport in the cathodes. This paper, discusses sources of this impedance in Li-aV{sub 2}O{sub 5} and Li-LiMn{sub 2}O{sub 4} thin-film cells and their effect on cell performance.

Bates, J.B.; Hart, F.X.; Lubben, D.; Kwak, B.S.; van Zomeren, A.

1994-11-01T23:59:59.000Z

299

A new high energy stabilized nickel-zinc rechargeable battery system for SLI and EV applications  

SciTech Connect

The nickel oxide-zinc rechargeable battery system is a serious candidate for a high power economical EV battery. The introduction of a new chemistry has resulted in stabilization of the performance of the zinc anode without adversely affecting the nickel electrode. The result has been a major enhancement of the cycle life capability with retention of the remarkably high practical energy density (both gravimetric and volumetric) of the nickel-zinc system. Near term practical applications for both passenger car truck SLI batteries as well as long term deep cycle applications for electric vehicles are discussed.

Reisner, D.; Eisenberg, M.

1989-01-01T23:59:59.000Z

300

Rechargeable zinc cell with alkaline electrolyte which inhibits shape change in zinc electrode  

DOE Patents (OSTI)

An improved rechargeable zinc cell is described comprising a zinc electrode and another electrode such as, for example, a nickel-containing electrode, and having an electrolyte containing KOH and a combination of KF and K[sub 2]CO[sub 3] salts which inhibits shape change in the zinc electrode, i.e., the zinc electrode exhibits low shape change, resulting in an improved capacity retention of the cell over an number of charge-discharge cycles, while still maintaining high discharge rate characteristics. 8 figures.

Adler, T.C.; McLarnon, F.R.; Cairns, E.J.

1994-04-12T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" from the National Library of EnergyBeta (NLEBeta).
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301

Polymer–Graphene Nanocomposites as Ultrafast-Charge and -Discharge Cathodes for Rechargeable Lithium Batteries  

Science Conference Proceedings (OSTI)

Electroactive polymers are a new generation of 'green' cathode materials for rechargeable lithium batteries. We have developed nanocomposites combining graphene with two promising polymer cathode materials, poly(anthraquinonyl sulfide) and polyimide, to improve their high-rate performance. The polymer-graphene nanocomposites were synthesized through a simple in-situ polymerization in the presence of graphene sheets. The highly dispersed graphene sheets in the nanocomposite drastically enhanced the electronic conductivity and allowed the electrochemical activity of the polymer cathode to be efficiently utilized. This allows for ultrafast charging and discharging - the composite can deliver more than 100 mAh/g within just a few seconds.

Song, Zhiping; Xu, Terrence (Tianren); Gordin, Mikhail; Jiang, Yingbing; Bae, In-Tae; Xiao, Qiangfeng; Zhan, Hui; Liu, Jun; Wang, Donghai

2012-05-09T23:59:59.000Z

302

Rechargeable zinc cell with alkaline electrolyte which inhibits shape change in zinc electrode  

DOE Patents (OSTI)

An improved rechargeable zinc cell is described comprising a zinc electrode and another electrode such as, for example, a nickel-containing electrode, and having an electrolyte containing KOH and a combination of KF and K.sub.2 CO.sub.3 salts which inhibits shape change in the zinc electrode, i.e., the zinc electrode exhibits low shape change, resulting in an improved capacity retention of the cell over an number of charge-discharge cycles, while still maintaining high discharge rate characteristics.

Adler, Thomas C. (Berkeley, CA); McLarnon, Frank R. (Orinda, CA); Cairns, Elton J. (Walnut Creek, CA)

1994-01-01T23:59:59.000Z

303

Stable isotope and groundwater flow dynamics of agricultural irrigation recharge into groundwater resources of the Central Valley, California  

Science Conference Proceedings (OSTI)

Intensive agricultural irrigation and overdraft of groundwater in the Central Valley of California profoundly affect the regional quality and availability of shallow groundwater resources. In the natural state, the {delta}{sup 18}O values of groundwater were relatively homogeneous (mostly -7.0 {+-} 0.5{per_thousand}), reflecting local meteoric recharge that slowly (1-3m/yr) flowed toward the valley axis. Today, on the west side of the valley, the isotope distribution is dominated by high {sup 18}O enclosures formed by recharge of evaporated irrigation waters, while the east side has bands of low {sup 18}O groundwater indicating induced recharge from rivers draining the Sierra Nevada mountains. Changes in {delta}{sup 18}O values caused by the agricultural recharge strongly correlate with elevated nitrate concentrations (5 to >100 mg/L) that form pervasive, non-point source pollutants. Small, west-side cities dependent solely on groundwater resources have experienced increases of >1.0 mg/L per year of nitrate for 10-30 years. The resultant high nitrates threaten the economical use of the groundwater for domestic purposes, and have forced some well shut-downs. Furthermore, since >80% of modern recharge is now derived from agricultural irrigation, and because modern recharge rates are {approximately}10 times those of the natural state, agricultural land retirement by urbanization will severely curtail the current safe-yields and promote overdraft pumping. Such overdrafting has occurred in the Sacramento metropolitan area for {approximately}40 years, creating cones of depression {approximately}25m deep. Today, groundwater withdrawal in Sacramento is approximately matched by infiltration of low {sup 18}O water (-11.0{per_thousand}) away from the Sacramento and American Rivers, which is estimated to occur at 100-300m/year from the sharp {sup 18}O gradients in our groundwater isotope map.

Davisson, M.L.; Criss, R.E.

1995-01-01T23:59:59.000Z

304

Electrochemical processes (i.e. inter-conversion between electric energy and chemical energy) are essential for rechargeable battery materials. Many  

E-Print Network (OSTI)

) are essential for rechargeable battery materials. Many conversions between structural phases in the electrodes rechargeable battery cell. Both sensitivity and resolution are expected to be improved significantly with our in situ Li ion motion in a battery cell during the charge/discharge process, thus to understand ionic

Weston, Ken

305

Simulation of Net Infiltration and Potential Recharge Using a Distributed-Parameter Watershed Model of the Death Valley Region, Nevada and California  

Science Conference Proceedings (OSTI)

This report presents the development and application of the distributed-parameter watershed model, INFILv3, for estimating the temporal and spatial distribution of net infiltration and potential recharge in the Death Valley region, Nevada and California. The estimates of net infiltration quantify the downward drainage of water across the lower boundary of the root zone and are used to indicate potential recharge under variable climate conditions and drainage basin characteristics. Spatial variability in recharge in the Death Valley region likely is high owing to large differences in precipitation, potential evapotranspiration, bedrock permeability, soil thickness, vegetation characteristics, and contributions to recharge along active stream channels. The quantity and spatial distribution of recharge representing the effects of variable climatic conditions and drainage basin characteristics on recharge are needed to reduce uncertainty in modeling ground-water flow. The U.S. Geological Survey, in cooperation with the U.S. Department of Energy, developed a regional saturated-zone ground-water flow model of the Death Valley regional ground-water flow system to help evaluate the current hydrogeologic system and the potential effects of natural or human-induced changes. Although previous estimates of recharge have been made for most areas of the Death Valley region, including the area defined by the boundary of the Death Valley regional ground-water flow system, the uncertainty of these estimates is high, and the spatial and temporal variability of the recharge in these basins has not been quantified.

J.A. Hevesi; A.L. Flint; L.E. Flint

2003-09-30T23:59:59.000Z

306

Groundwater Heat Pump with Pumping and Recharging in the Same Well in China  

E-Print Network (OSTI)

In China, a new-style groundwater heat pump emerged in 2000. In this system, the production well and the injection well is integrated into one well, which is divided into three parts by clapboards: a low pressure (production) space, a seals section, and a high pressure (injection) space. In contrast to a conventional groundwater heat pump, this new-style groundwater heat pump is named the Groundwater Heat Pump with Pumping and Recharging in the Same Well (GWHPPRSW). Up to now, over 180 projects have been established with a total construction area exceeding 2,500,000 m2. The well structure of GWHPPRSW is depicted. The advantages and disadvantages of the GWHPPRSW are analyzed. The differences between the Pumping & Recharging Well (PRW) and Standing Column Well (SCW) are compared in detail. Potential problems and applicability ranges are pointed out. The investigation on operational status of 11 different types of buildings equipped GWHPPRSW carried out by Beijing Municipal Bureau of Statistics shows that the mean operation cost per heating area of GWHPPRSW is lower than that of municipal central heating. GWHPPRSW has low initial investment, operates economically and is friendly to the environment. It is especially well suited to places with appropriate hydrogeological conditions and those with groundwater permission from the local government.

Ni, L.; Jiang, Y.; Yao, Y.; Ma, Z.

2006-01-01T23:59:59.000Z

307

Spectral Filtering in a Diode-Pumped Nd:YLF Regenerative Amplifier Using a Volume Bragg Grating  

Science Conference Proceedings (OSTI)

Instrument-limited suppression of out-of-band Amplified Spontaneous Emission (ASE) is demonstrated in a Nd:YLF Diode-Pumped Regenerative Amplifier (DPRA) using a Volume Bragg Grating (VBG) as a spectrally selective reflective element. A VBG with 99.4% diffraction efficiency and 230-pm-FWHM reflection bandwidth produced a 43-pm-FWHM output spectral width in an unseeded DPRA compared to 150-pm FWHM in the same DPRA with no VBG. Instrument-limited ASE suppression is even observed when the DPRA seed pulse energy approaches the ASE background.

Okishev, A.V.; Dorrer, C.; Smirnov, V.I.; Glebov, L.B.; Zuegel, J.D.

2007-06-21T23:59:59.000Z

308

Cr-Ga-N materials for negative electrodes in Li rechargeable batteries : structure, synthesis and electrochemical performance  

E-Print Network (OSTI)

Electrochemical performances of two ternary compounds (Cr2GaN and Cr3GaN) in the Cr-Ga-N system as possible future anode materials for lithium rechargeable batteries were studied. Motivation for this study was dealt in ...

Kim, Miso

2007-01-01T23:59:59.000Z

309

U.S. Energy Information Administration (EIA) - Sector  

Gasoline and Diesel Fuel Update (EIA)

9. Vehicle types that do not rely solely on a gasoline internal combustion engine for motive and accessory power 9. Vehicle types that do not rely solely on a gasoline internal combustion engine for motive and accessory power Vehicle type Description Micro hybrid Vehicles with gasoline engines, larger batteries, and electrically powered auxiliary systems that allow the engine to be turned off when the vehicle is coasting or idling and then quickly restarted. Regenerative braking recharges the batteries but does not provide power to the wheels for traction. Hybrid electric (gasoline or diesel) Vehicles that combine internal combustion and electric propulsion engines but have limited all-electric range and batteries that cannot be recharged with grid power. Diesel Vehicles that use diesel fuel in a compression-ignition internal combustion engine. Plug-in hybrid electric Vehicles that use battery power for driving some distance, until a minimum level of

310

Low cost electronic ultracapacitor interface technique to provide load leveling of a battery for pulsed load or motor traction drive applications  

DOE Patents (OSTI)

A battery load leveling arrangement for an electrically powered system in which battery loading is subject to intermittent high current loading utilizes a passive energy storage device and a diode connected in series with the storage device to conduct current from the storage device to the load when current demand forces a drop in battery voltage. A current limiting circuit is connected in parallel with the diode for recharging the passive energy storage device. The current limiting circuit functions to limit the average magnitude of recharge current supplied to the storage device. Various forms of current limiting circuits are disclosed, including a PTC resistor coupled in parallel with a fixed resistor. The current limit circuit may also include an SCR for switching regenerative braking current to the device when the system is connected to power an electric motor.

King, Robert Dean (Schenectady, NY); DeDoncker, Rik Wivina Anna Adelson (Malvern, PA)

1998-01-01T23:59:59.000Z

311

Rechargeable lithium battery for use in applications requiring a low to high power output  

DOE Patents (OSTI)

Rechargeable lithium batteries which employ characteristics of thin-film batteries can be used to satisfy power requirements within a relatively broad range. Thin-film battery cells utilizing a film of anode material, a film of cathode material and an electrolyte of an amorphorus lithium phosphorus oxynitride can be connected in series or parallel relationship for the purpose of withdrawing electrical power simultaneously from the cells. In addition, such battery cells which employ a lithium intercalation compound as its cathode material can be connected in a manner suitable for supplying power for the operation of an electric vehicle. Still further, by incorporating within the battery cell a relatively thick cathode of a lithium intercalation compound, a relatively thick anode of lithium and an electrolyte film of lithium phosphorus oxynitride, the battery cell is rendered capable of supplying power for any of a number of consumer products, such as a laptop computer or a cellular telephone.

Bates, John B. (Oak Ridge, TN)

1996-01-01T23:59:59.000Z

312

Rechargeable lithium battery for use in applications requiring a low to high power output  

SciTech Connect

Rechargeable lithium batteries which employ characteristics of thin-film batteries can be used to satisfy power requirements within a relatively broad range. Thin-film battery cells utilizing a film of anode material, a film of cathode material and an electrolyte of an amorphous lithium phosphorus oxynitride can be connected in series or parallel relationship for the purpose of withdrawing electrical power simultaneously from the cells. In addition, such battery cells which employ a lithium intercalation compound as its cathode material can be connected in a manner suitable for supplying power for the operation of an electric vehicle. Still further, by incorporating within the battery cell a relatively thick cathode of a lithium intercalation compound, a relatively thick anode of lithium and an electrolyte film of lithium phosphorus oxynitride, the battery cell is rendered capable of supplying power for any of a number of consumer products, such as a laptop computer or a cellular telephone.

Bates, John B. (Oak Ridge, TN)

1997-01-01T23:59:59.000Z

313

Ionic modeling of lithium manganese spinel materials for use in rechargeable batteries  

SciTech Connect

In order to understand and evaluate materials for use in Li ion rechargeable battery electrodes, we have modeled the crystal structures of various Mn oxide and Li Mn oxide compounds. We have modeled the MnO{sub 2} polymorphs and several spinels with intermediate compositions based on the amount of Li inserted into the tetrahedral site. 3-D representations of the structures provide a basis for identifying site occupancies, coordinations, Mn valence, order-disorder, and potentially new dopants for enhanced cathode behavior. XRD simulations of the crystal structures provide good agreement with observed patterns for synthesized samples. Ionic modeling of these materials consists of an energy minimization approach using Coulombic, repulsive, and van der Waals interactions. Modeling using electronic polarizabilities (shell model) allows a systematic analysis of changes in lattice energy, cell volume, and the relative stability of doped structures using ions such as Al, Ti, Ni, and Co.

Cygan, R.T.; Westrich, H.R.; Doughty, D.H.

1995-12-31T23:59:59.000Z

314

Layer cathode methods of manufacturing and materials for Li-ion rechargeable batteries  

DOE Patents (OSTI)

A positive electrode active material for lithium-ion rechargeable batteries of general formula Li.sub.1+xNi.sub..alpha.Mn.sub..beta.A.sub..gamma.O.sub.2 and further wherein A is Mg, Zn, Al, Co, Ga, B, Zr, or Ti and 0

Kang, Sun-Ho (Naperville, IL); Amine, Khalil (Downers Grove, IL)

2008-01-01T23:59:59.000Z

315

Theory of SEI Formation in Rechargeable Batteries: Capacity Fade, Accelerated Aging and Lifetime Prediction  

E-Print Network (OSTI)

Cycle life is critically important in applications of rechargeable batteries, but lifetime prediction is mostly based on empirical trends, rather than mathematical models. In practical lithium-ion batteries, capacity fade occurs over thousands of cycles, limited by slow electrochemical processes, such as the formation of a solid-electrolyte interphase (SEI) in the negative electrode, which compete with reversible lithium intercalation. Focusing on SEI growth as the canonical degradation mechanism, we show that a simple single-particle model can accurately explain experimentally observed capacity fade in commercial cells with graphite anodes, and predict future fade based on limited accelerated aging data for short times and elevated temperatures. The theory is extended to porous electrodes, predicting that SEI growth is essentially homogeneous throughout the electrode, even at high rates. The lifetime distribution for a sample of batteries is found to be consistent with Gaussian statistics, as predicted by th...

Pinson, Matthew B

2012-01-01T23:59:59.000Z

316

Rechargeable zinc cell with alkaline electrolyte which inhibits shape change in zinc electrode  

DOE Patents (OSTI)

An improved rechargeable zinc cell is described comprising a zinc electrode and another electrode such as, for example, a nickel-containing electrode, and having an electrolyte containing one or more hydroxides having the formula M(OH), one or more fluorides having the formula MF, and one or more carbonates having the formula M.sub.2 CO.sub.3, where M is a metal selected from the group consisting of alkali metals. The electrolyte inhibits shape change in the zinc electrode, i.e., the zinc electrode exhibits low shape change, resulting in an improved capacity retention of the cell over an number of charge-discharge cycles, while still maintaining high discharge rate characteristics.

Adler, Thomas C. (Berkeley, CA); McLarnon, Frank R. (Orinda, CA); Cairns, Elton J. (Walnut Creek, CA)

1995-01-01T23:59:59.000Z

317

Develop safe, low-cost method of manufacturing rechargeable, high conductivity lithium batteries. Final report  

DOE Green Energy (OSTI)

The focus of much of this work is the rechargeable lithium battery, because of its high energy density, and the use of solid polymer electrolytes (SPE`s) for ease of fabrication and lightness of weight. The classical solid polymer electrolyte is based on the use of salts such as lithium triflate dissolved in poly(ethylene oxide) (PEO) or poly(propylene oxide). This specific polymer electrolyte has severe limitations. Poly(ethylene oxide) is a microcrystalline polymer at 25 C, and ion migration occurs only in the 20--30% of the material that is amorphous. Useable conductivities (10{sup {minus}5} S/cm) can be achieved only when the material is heated above 80 C. Two approaches to generate higher electrolyte conductivities at ambient temperatures are being developed. In the first, organic solvents are added to the polymer to plasticize it and dissolve the microcrystallites. This increases the conductivity but raises the possibility of fires if the battery casing ruptures during high charge or discharge conditions or when the device is punctured by impact. The alternative is to design new polymers that are good solid electrolyte media but which are completely amorphous and have low glass transition temperatures. Such a polymer is MEEP (poly[bis(methoxyethoxy)phosphazene]), first synthesized in the author`s laboratories. The main objective was to develop crosslinking methods for MEEP which could be used on a mass production scale to produce thin film rechargeable lithium batteries. A further objective was to assemble working energy storage devices to investigate the feasibility that this system could be developed commercially.

Allcock, H.R.

1997-12-01T23:59:59.000Z

318

FY2003 Progress Report for Energy Storage Research and Development  

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

II-2. Analyses indicated that batteries or ultracapacitors could capture significant regenerative braking energy, enhancing the fuel economy of FCVs. Figure II-2. Energy...

319

TransForum: Volume 5, No. 2, Fall 2005  

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

primarily for leveling the load on the internal combustion engine (ICE) and for capturing energy associated with regenerative braking. If fuel prices continue to rise, automakers...

320

_MainReport  

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0 Overall DC electrical energy consumption (DC Whmi) 61 Overall DC electrical energy captured from regenerative braking (DC Whmi) 43 Total number of trips 111,773 Total...

Note: This page contains sample records for the topic "regenerative braking recharges" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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321

MonthlyReport  

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

18 Overall DC electrical energy consumption (DC Whmi) 74 Overall DC electrical energy captured from regenerative braking (DC Whmi) 45 Total number of trips 11,462 Total...

322

Vehicle Technologies Office: Ultracapacitors  

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

converter, which would increase the cost of the vehicle. The use of ultracapacitors for regenerative braking can greatly improve fuel efficiency under stop-and-go urban driving...

323

_MainReport  

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

50 Overall DC electrical energy consumption (DC Whmi) 39 Overall DC electrical energy captured from regenerative braking (DC Whmi) 28 Total number of trips 10,624 Total...

324

DOE/ID-Number  

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

of providing the power required for acceleration. Also, the battery's ability to accept energy from regenerative braking decreased significantly during the operating period....

325

_MainReport  

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

52 Overall DC electrical energy consumption (DC Whmi) 29 Overall DC electrical energy captured from regenerative braking (DC Whmi) 39 Total number of trips 22,071 Total...

326

Stop/Start: Driving  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

generator to the gasoline engine to start it. Battery: The battery is used to store energy generated from the gasoline engine or, during regenerative braking, from the...

327

TransForum n4n3 - Modeling Collaboration  

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

turns out, for example, that higher hybridization (more battery power) leads to increased regenerative braking energy but decreased fuel cell system cycle efficiency. The...

328

INL/EXT-09-XXXXX  

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

power available during braking. Figures 16 and 20 are pie charts showing the sources of regenerative energy throughout the urban drive cycle for the CD and CS modes,...

329

Annual Progress Report for Advanced Vehicle Technology Analysis...  

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

can expect, fuel economy gains are greater for driving cycles that have a high level of regenerative braking energy available (the Federal Urban Driving Schedule, or FUDS) and...

330

MonthlyReport  

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

190 Overall DC electrical energy consumption (DC Whmi) 111 Overall DC electrical energy captured from regenerative braking (DC Whmi) 50 Total number of trips 2,055 Total...

331

Energy Conversion Devices Fuel Cell Electrocatalyst Development...  

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

Fuel Cell(tm) Texaco Ovonic Fuel Cell Company, LLC non-precious metal catalysts regenerative braking energy absorption capability wide temperature range instant...

332

How Plug-in Hybrids Save Money  

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

of gasoline's widespread availability and quick refueling. Plug-in hybrids also save energy through regenerative braking, which recovers much of the energy typically lost when...

333

Stop/Start: Overview  

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

visible. Car is stopped at an intersection. Battery: The battery is used to store energy generated from the gasoline engine or, during regenerative braking, from the...

334

TransForum, Vol 4, No. 3  

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

out, for exam- ple, that higher hybridization (more battery power) leads to increased regenerative braking energy but decreased fuel cell system cycle efficiency. The...

335

_MainReport  

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

45 Overall DC electrical energy consumption (DC Whmi) 29 Overall DC electrical energy captured from regenerative braking (DC Whmi) 39 Total number of trips 10,847 Total...

336

untitled  

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

test miles 4 PHEV Advantages * Reduced petroleum consumption and emissions * Recover energy during regenerative braking * Use existing gas station infrastructure * Minimal...

337

Fuel Cell Vehicles  

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

gas and oxygen into electricity to power the electric motor; High-Output Battery - Stores energy generated from regenerative braking and provides supplemental power to the electric...

338

Phase Field Model of Li-Plating in Lithium Ion Battery  

Science Conference Proceedings (OSTI)

Abstract Scope, Li plating limits the maximum safe charging rate of Li-ion batteries, and thus the amount of energy that can be captured by regenerative braking.

339

Hybrid: Starting  

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

the gasoline engine to the electric motor to the battery. Battery: The battery stores energy generated from the gasoline engine or, during regenerative braking, from the...

340

untitled  

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

electricity source, mostly from power plants via the electric grid * Also captures energy during regenerative braking: electric motor(s) acts as a generator to slow the BEV...

Note: This page contains sample records for the topic "regenerative braking recharges" from the National Library of EnergyBeta (NLEBeta).
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341

Microsoft PowerPoint - Clean Cities Web Presentation - Francfort...  

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

off-board electricity source, mostly from power plants via the electric grid * Captures energy during regenerative braking: electric motor(s) acts as a generator * No...

342

Microsoft Word - Compare Driving Styles_ ETEC Hymotion Prius...  

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

Driving intensity is the energy at the wheels used for propulsion. Recaptured energy through regenerative braking is not considered when calculating driving intensity....

343

_MainReport  

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

0 Overall DC electrical energy consumption (DC Whmi) 66 Overall DC electrical energy captured from regenerative braking (DC Whmi) 30 Total number of trips 725 Total distance...

344

TransForum v5n2 - Argonne's "Composite-Structure" Electrodes...  

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

primarily for leveling the load on the internal combustion engine (ICE) and for capturing energy associated with regenerative braking. If fuel prices continue to rise, automakers...

345

MonthlyReport  

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

81 Overall DC electrical energy consumption (DC Whmi) 104 Overall DC electrical energy captured from regenerative braking (DC Whmi) 49 Total number of trips 2,810 Total...

346

_MainReport  

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

148 Overall DC electrical energy consumption (DC Whmi) 87 Overall DC electrical energy captured from regenerative braking (DC Whmi) 46 Total number of trips 6,223 Total...

347

King County Metro Transit. Advanced Technology Vehicles in Service...  

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

of General Motors A: The energy storage system supplies electricity to the E V 50 Drive's electric motors. It stores electricity during normal operation and regenerative braking....

348

Third-Party Evaluation of Petro Tex Hydrocarbons, LLC, ReGen Lubricating Oil Re-refining Process  

DOE Green Energy (OSTI)

This report presents an assessment of market, energy impact, and utility of the PetroTex Hydrocarbons, LLC., ReGen process for re-refining used lubricating oil to produce Group I, II, and III base oils, diesel fuel, and asphalt. PetroTex Hydrocarbons, LLC., has performed extensive pilot scale evaluations, computer simulations, and market studies of this process and is presently evaluating construction of a 23 million gallon per year industrial-scale plant. PetroTex has obtained a 30 acre site in the Texas Industries RailPark in Midlothian Texas. The environmental and civil engineering assessments of the site are completed, and the company has been granted a special use permit from the City of Midlothian and air emissions permits for the Texas Commission on Environmental Quality.

Compere, A L [ORNL; Griffith, William {Bill} L [ORNL

2009-04-01T23:59:59.000Z

349

Micropower chemical fuel-to-electric conversion : a "regenerative flip" hydrogen concentration cell promising near carnot efficiency.  

DOE Green Energy (OSTI)

Although battery technology is relatively mature, power sources continue to impose serious limitations for small, portable, mobile, or remote applications. A potentially attractive alternative to batteries is chemical fuel-to-electric conversion. Chemical fuels have volumetric energy densities 4 to 10 times those of batteries. However, realizing this advantage requires efficient chemical fuel-to-electric conversion. Direct electrochemical conversion would be the ideal, but, for most fuels, is generally not within the state-of-the-science. Next best, chemical-to-thermal-to-electric conversion can be attractive if efficiencies can be kept high. This small investigative project was an exploration into the feasibility of a novel hybrid (i.e., thermal-electrochemical) micropower converter of high theoretical performance whose demonstration was thought to be within near-term reach. The system is comprised of a hydrogen concentration electrochemical cell with physically identical hydrogen electrodes as anode and cathode, with each electrode connected to physically identical hydride beds each containing the same low-enthalpy-of-formation metal hydride. In operation, electrical power is generated by a hydrogen concentration differential across the electrochemical cell. This differential is established via coordinated heating and passive cooling of the corresponding hydride source and sink. Heating is provided by the exothermic combustion (i.e., either flame combustion or catalytic combustion) of a chemical fuel. Upon hydride source depletion, the role of source and sink are reversed, heating and cooling reversed, electrodes commutatively reversed, cell operation reversed, while power delivery continues unchanged. This 'regenerative flip' of source and sink hydride beds can be cycled continuously until all available heating fuel is consumed. Electricity is efficiently generated electrochemically, but hydrogen is not consumed, rather the hydrogen is regeneratively cycled as an electrochemical 'working fluid'.

Wally, Karl

2006-05-01T23:59:59.000Z

350

Oxygen enriched combustion system performance study. Phase 2: 100 percent oxygen enriched combustion in regenerative glass melters, Final report  

Science Conference Proceedings (OSTI)

The field test project described in this report was conducted to evaluate the energy and environmental performance of 100% oxygen enriched combustion (100% OEC) in regenerative glass melters. Additional objectives were to determine other impacts of 100% OEC on melter operation and glass quality, and to verify on a commercial scale that an on-site Pressure Swing Adsorption oxygen plant can reliably supply oxygen for glass melting with low electrical power consumption. The tests constituted Phase 2 of a cooperative project between the United States Department of Energy, and Praxair, Inc. Phase 1 of the project involved market and technical feasibility assessments of oxygen enriched combustion for a range of high temperature industrial heating applications. An assessment of oxygen supply options for these applications was also performed during Phase 1, which included performance evaluation of a pilot scale 1 ton per day PSA oxygen plant. Two regenerative container glass melters were converted to 100% OEC operation and served as host sites for Phase 2. A 75 ton per day end-fired melter at Carr-Lowrey Glass Company in Baltimore, Maryland, was temporarily converted to 100% OEC in mid- 1990. A 350 tpd cross-fired melter at Gallo Glass Company in Modesto, California was rebuilt for permanent commercial operation with 100% OEC in mid-1991. Initially, both of these melters were supplied with oxygen from liquid storage. Subsequently, in late 1992, a Pressure Swing Adsorption oxygen plant was installed at Gallo to supply oxygen for 100% OEC glass melting. The particular PSA plant design used at Gallo achieves maximum efficiency by cycling the adsorbent beds between pressurized and evacuated states, and is therefore referred to as a Vacuum/Pressure Swing Adsorption (VPSA) plant.

Tuson, G.B.; Kobayashi, H.; Campbell, M.J.

1994-08-01T23:59:59.000Z

351

Within-Day Recharge of Plug-In Hybrid Electric Vehicles: Energy Impact of Public Charging Infrastructure  

SciTech Connect

This paper examines the role of public charging infrastructure in increasing the share of driving on electricity that plug-in hybrid electric vehicles might exhibit, thus reducing their gasoline consumption. Vehicle activity data obtained from a global positioning system tracked household travel survey in Austin, Texas, is used to estimate gasoline and electricity consumptions of plug-in hybrid electric vehicles. Drivers within-day recharging behavior, constrained by travel activities and public charger availability, is modeled. It is found that public charging offers greater fuel savings for hybrid electric vehicles s equipped with smaller batteries, by encouraging within-day recharge, and providing an extensive public charging service is expected to reduce plug-in hybrid electric vehicles gasoline consumption by more than 30% and energy cost by 10%, compared to the scenario of home charging only.

Dong, Jing [ORNL; Lin, Zhenhong [ORNL

2012-01-01T23:59:59.000Z

352

CO2/oxalate Cathodes as Safe and Efficient Alternatives in High Energy Density Metal-Air Type Rechargeable Batteries  

E-Print Network (OSTI)

We present theoretical analysis on why and how rechargeable metal-air type batteries can be made significantly safer and more practical by utilizing CO2/oxalate conversions instead of O2/peroxide or O2/hydroxide ones, in the positive electrode. Metal-air batteries, such as the Li-air one, may have very large energy densities, comparable to that of gasoline, theoretically allowing for long range all-electric vehicles. There are, however, still significant challenges, especially related to the safety of their underlying chemistries, the robustness of their recharging and the need of supplying high purity O2 from air to the battery. We point out that the CO2/oxalate reversible electrochemical conversion is a viable alternative of the O2-based ones, allowing for similarly high energy density and almost identical voltage, while being much safer through the elimination of aggressive oxidant peroxides and the use of thermally stable, non-oxidative and environmentally benign oxalates instead.

Nemeth, Karoly

2013-01-01T23:59:59.000Z

353

Within-Day Recharge of Plug-In Hybrid Electric Vehicles: Energy Impact of Public Charging Infrastructure  

Science Conference Proceedings (OSTI)

This paper studies the role of public charging infrastructure in increasing PHEV s share of driving on electricity and the resulting petroleum use reduction. Using vehicle activity data obtained from the GPS-tracking household travel survey in Austin, Texas, gasoline and electricity consumptions of PHEVs in real world driving context are estimated. Driver s within-day recharging behavior, constrained by travel activities and public charger network, is modeled as a boundedly rational decision and incorporated in the energy use estimation. The key findings from the Austin dataset include: (1) public charging infrastructure makes PHEV a competitive vehicle choice for consumers without a home charger; (2) providing sufficient public charging service is expected to significantly reduce petroleum consumption of PHEVs; and (3) public charging opportunities offer greater benefits for PHEVs with a smaller battery pack, as within-day recharges compensate battery capacity.

Dong, Jing [ORNL; Lin, Zhenhong [ORNL

2012-01-01T23:59:59.000Z

354

Preliminary estimates of spatially distributed net infiltration and recharge for the Death Valley region, Nevada-California  

Science Conference Proceedings (OSTI)

A three-dimensional ground-water flow model has been developed to evaluate the Death Valley regional flow system, which includes ground water beneath the Nevada Test Site. Estimates of spatially distributed net infiltration and recharge are needed to define upper boundary conditions. This study presents a preliminary application of a conceptual and numerical model of net infiltration. The model was developed in studies at Yucca Mountain, Nevada, which is located in the approximate center of the Death Valley ground-water flow system. The conceptual model describes the effects of precipitation, runoff, evapotranspiration, and redistribution of water in the shallow unsaturated zone on predicted rates of net infiltration; precipitation and soil depth are the two most significant variables. The conceptual model was tested using a preliminary numerical model based on energy- and water-balance calculations. Daily precipitation for 1980 through 1995, averaging 202 millimeters per year over the 39,556 square kilometers area of the ground-water flow model, was input to the numerical model to simulate net infiltration ranging from zero for a soil thickness greater than 6 meters to over 350 millimeters per year for thin soils at high elevations in the Spring Mountains overlying permeable bedrock. Estimated average net infiltration over the entire ground-water flow model domain is 7.8 millimeters per year. To evaluate the application of the net-infiltration model developed on a local scale at Yucca Mountain, to net-infiltration estimates representing the magnitude and distribution of recharge on a regional scale, the net-infiltration results were compared with recharge estimates obtained using empirical methods. Comparison of model results with previous estimates of basinwide recharge suggests that the net-infiltration estimates obtained using this model may overestimate recharge because of uncertainty in modeled precipitation, bedrock permeability, and soil properties for locations such as the Spring Mountains. Although this model is preliminary and uncalibrated, it provides a first approximation of the spatial distribution of net infiltration for the Death Valley region under current climatic conditions.

Hevesi, J.A.; Flint, A.L.; Flint, L.E.

2002-07-18T23:59:59.000Z

355

Final cost reduction study for the Geysers Recharge Alternative. Volume 1  

DOE Green Energy (OSTI)

The purpose of this study is to determine whether or not cost reduction opportunities exist for the Geysers Recharge Alternative as defined in the Santa Rosa Subregional Long-Term Wastewater Project EIR/EIS. The City of Santa Rosa has been directed to have a plan for reclaimed water disposal in place by 1999 which will meet future capacity needs under all weather conditions. A Draft EIR/EIS released in July 1996 and a Final EIR certified in June 1997 examine four primary alternatives plus the No Action Alternative. Two of the primary alternatives involve agricultural irrigation with reclaimed water, either in western or southern Sonoma County. Another involves increased discharge of reclaimed water into the Russian River. The fourth involves using reclaimed water to replenish the geothermal reservoir at the Geysers. The addition of this water source would enable the Geysers operators to produce more steam from the geothermal area and thereby prolong the life and economic production level of the steamfield and the geothermal power plants supplied by the steamfield. This study provides additional refined cost estimates for new scenarios which utilize an alternative pipeline alignment and a range of reclaimed water flows, which deliver less water to the Geysers than proposed in the EIR/EIS (by distributing flow to other project components). Also, electrical power rates were revised to reflect the recent changes in costs associated with deregulation of the power industry. In addition, this report provides information on sources of potential public and private funding available and future environmental documentation required if the cost reduction scenarios were to be selected by the City as part of their preferred alternative.

NONE

1997-11-01T23:59:59.000Z

356

Regenerative amplification of picosecond 10-{mu}m pulses in a high-pressure optically pumped CO{sub 2} laser  

Science Conference Proceedings (OSTI)

A model is developed and numerical calculations are performed for the regenerative amplification of seed picosecond 10-{mu}m radiation pulses in a high-pressure optically pumped CO{sub 2} laser. It is established that by varying the cavity parameters, the conditions of efficient regenerative amplification may be optimised for the case of a relatively short-duration (50 ns) solid-state Cr:Er:YSGG laser and 'long-duration' (250 ns) electrodischarge chemical HF laser. It is shown that the schemes of a CO{sub 2} amplifier with optical pumping presented allow obtaining the pulses with the duration of 3ps, output energy of 1-5 mJ, and peak power of {approx}1 GW at the pump energy of 150-200 mJ. (lasers and amplifiers)

Gordienko, Vyacheslav M; Platonenko, Viktor T [Lomonosov Moscow State University, Faculty of Physics, Moscow (Russian Federation)

2011-01-24T23:59:59.000Z

357

PRISM 2.0: Personal Transportation Module of the U.S. Regional Economy, Greenhouse Gas, and Energy (US-REGEN) Model: A Guide to Operation and Development  

Science Conference Proceedings (OSTI)

The personal transportation/electric vehicle penetration module (Transportation Module) of the U.S. Regional Economy, Greenhouse Gas, and Energy (US-REGEN) integrated regional macroeconomic model is a structural economic model of personal vehicle purchase and driving behaviors that focuses on the adoption of electric vehicles. The module employs a representation of consumers’ demographics, existing vehicles, vehicle choices, and preferences for vehicle characteristics to model personal vehicle ...

2013-09-26T23:59:59.000Z

358

PRISM 2.0: Estimating Energy Substitution Parameters for the U.S. Regional Economy, Greenhouse Gas, and Energy (US-REGEN) Model  

Science Conference Proceedings (OSTI)

Under the PRISM 2.0 Project, the Electric Power Research Institute (EPRI) developed the U.S. Regional Economy, Greenhouse Gas, and Energy (US-REGEN) model that can assess the impact of various climate, energy, and environmental policies on the electric power sector, the energy system, and the overall U.S. economy. This model represents energy efficiency potential through elasticities of substitution between energy and capital. EPRI has contracted with M. K. Jaccard and Associates Inc. to determine ...

2013-09-30T23:59:59.000Z

359

Regenerative amplification of femtosecond pulses: Design and construction of a sub-100fs, {mu}J laser system  

Science Conference Proceedings (OSTI)

Femtosecond lasers are a powerful tool for a wealth of applications in physics, chemistry and biology. In most cases, however, their use is fundamentally restricted to a rather narrow spectral range. This thesis deals with the construction and characterization of a femtosecond light source for spectroscopic applications which overcomes that restriction. It is demonstrated how the output of a continuously pumped Ti:sapphire femtosecond oscillator is amplified to the {mu}J level, while the pulse duration remains below 100fs. A combination of continuous pumping, acousto-optic switching and Ti:Al{sub 2}O{sub 3} as a gain medium allows amplification at high repetition rates. By focusing the high energy pulses into a sapphire crystal, a broad-band continuum can be generated, extended in wavelengths over several hundred nanometers. To accomplish amplification of three orders of magnitude while maintaining the pulse length, a regenerative multipass amplifier system was built. The thesis describes theoretical design, realization and characterization of the system. Theoretical calculations and preliminary measurements were carried out and allow a critical evaluation of the final performance.

Schumacher, A.B. [Universitaet Karlsruhe (Germany). Institut fuer Angewandte Physik]|[Lawrence Berkeley National Lab., CA (United States)

1996-10-01T23:59:59.000Z

360

Regenerative Amplification of Femtosecond Pulses: Design andConstruction of a sub-100fs, muon J Laser System  

Science Conference Proceedings (OSTI)

Femtosecond lasers are a powerful tool for a wealth of applications in physics, chemistry and biology. In most cases, however, their use is fundamentally restricted to a rather narrow spectral range. This thesis deals with the construction and characterization of a femtosecond light source for spectroscopic applications which overcomes that restriction. It is demonstrated how the output of a continuously pumped Ti:sapphire femtosecond oscillator is amplified to the {mu}J level,while the pulse duration remains below 100 fs. A combination of continuous pumping, acousto-optic switching and Ti:Al{sub 2}O{sub 3} as a gain medium allows amplification at high repetition rates. By focusing the high energy pulses into a sapphire crystal, a broad-band continuum can be generated, extended in wavelengths over several hundred nanometers. To accomplish amplification of three orders of magnitude while maintaining the pulse length, a regenerative multipass amplifier system was built. The thesis describes theoretical design, realization and characterization of the system. Theoretical calculations and preliminary measurements were carried out and allow a critical evaluation of the final performance.

Schumacher, Andreas B.

1996-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

A new structure for bidirectional power flow  

Science Conference Proceedings (OSTI)

In this paper, methods of energy recovery for electric motors in braking mode are presented. Also for motors with low and medium regenerative power, a low cost and simple structure is proposed. In this method, for converting the high voltage of DC bus ... Keywords: bidirectional power flow, energy saving, regenerative brake

Seyed Borhan Azimi; Hassan Ghafoori Fard

2005-03-01T23:59:59.000Z

362

Chemically and compositionally modified solid solution disordered multiphase nickel hydroxide positive electrode for alkaline rechargeable electrochemical cells  

DOE Patents (OSTI)

A high capacity, long cycle life positive electrode for use in an alkaline rechargeable electrochemical cell comprising: a solid solution nickel hydroxide material having a multiphase structure that comprises at least one polycrystalline .gamma.-phase including a polycrystalline .gamma.-phase unit cell comprising spacedly disposed plates with at least one chemical modifier incorporated around the plates, the plates having a range of stable intersheet distances corresponding to a 2.sup.+ oxidation state and a 3.5.sup.+, or greater, oxidation state; and at least one compositional modifier incorporated into the solid solution nickel hydroxide material to promote the multiphase structure.

Ovshinsky, Stanford R. (Bloomfield Hills, MI); Corrigan, Dennis (Troy, MI); Venkatesan, Srini (Southfield, MI); Young, Rosa (Troy, MI); Fierro, Christian (Troy, MI); Fetcenko, Michael A. (Rochester Hills, MI)

1994-01-01T23:59:59.000Z

363

Argon-ion-pumped and diode-pumped all-solid-state femtosecond Cr:LiSrAlF{sub 6} regenerative amplifiers  

Science Conference Proceedings (OSTI)

A tunable femtosecond solid-state amplifier system that uses only 3 W of 488-nm argon-ion pump power has been demonstrated to deliver microjoule pulses at repetition rates up to 20 kHz, with a maximum pulse energy of 14 {mu}J obtained at 5 kHz. An all-solid-state, tunable, diode-pumped Cr:LiSrAlF{sub 6} regenerative amplifier has been demonstrated, for the first time to our knowledge, that amplifies femtosecond pulses to energies exceeding 1 {mu}J at up to a 16-kHz repetition rate.

Hyde, S.C.W.; Barry, N.P.; Mellish, R.; French, P.M.W.; Taylor, J.R. [Femtosecond Optics Group, Department of Physics, Imperial College of Science and Technology, Prince Consort Road, London SW7 2BZ (United Kingdom); van der Poel, C.J.; Valster, A. [Philips Optoelectronics Centre, Prof. Holstlann 4, 5656 AA Eindhoven (Netherlands)

1995-01-15T23:59:59.000Z

364

Solar-MEC development program. Project 9103 third quarter progress report, March 1--May 31, 1978. [Desiccant wheel and regenerative heat exchange wheel performance  

DOE Green Energy (OSTI)

During the third quarter of the Solar-MEC program, work continued on developing the computer model simulating the desiccant wheel behavior (Task 1) and assessing the performance of the regenerative heat exchange wheel (Task 3). This report specifically presents the results obtained using the computer model as an analytical tool to evaluate design and operating conditions to optimize the wheel's performance. It also contains evaluations of two different available heat transfer matrixes: the currently used aluminum honeycomb and a new product, a potentially less-expensive, corrugated aluminum material. The mathematical modeling and diagnostic evaluations and ways of improving the component and machine performance were identified and are described for both tasks.

Wurm, J.; Weil, S.A.; Zawacki, T.S.; Kinast, J.A.; Macriss, R.A.

1978-12-01T23:59:59.000Z

365

BPA-Solicited Technical Review of "Echo Meadows Project Winter Artificial Recharge: Final Report for 2001 Baseline", Technical Report 2004.  

DOE Green Energy (OSTI)

The purpose of this report was to provide, at BPA's request, a technical review of interim products received for Project 2001-015-00 under contract 6925. BPA sometimes solicits technical reviews for Fish and Wildlife products or issues where outside expertise is required. External review of complex project deliverables assures BPA as a funding agency that the contractor is continuing with scientifically-credible experimental techniques envisioned in the original proposal. If the project's methodology proves feasible, there could be potential applications beyond the project area to similar situations in the Columbia Basin. The Experiment involves artificial flooding during high flow periods and a determination of the portion of the return flows that end up in the Umatilla River during low flow months and within acceptable water quality parameters (e.g., low temperature, few contaminants). Flooding could be a critical water source for aquatic organisms at times of the year when flows in the lower reaches of the Umatilla River are low and water is warmer than would be desired. The experiment was proposed to test whether 'this process, recharges the shallow aquifers of the old flood plain, for natural filtration through the alluvial soils as it returns to the Umatilla River, cleaner and cooler (about 50 degree Fahrenheit) five to six month later (about July and August) substantially cooling the river and [making it] more beneficial to anadromous [fish]'. A substantial amount of preliminary data had been collected and preliminary results were submitted in an interim report 'Echo Meadows Project Winter Artificial Recharge: Final Report for 2001 Baseline (December 2002)'. A substantial amount of addition funding was provided for the last cycle of flooding (Phases II) and final analyses of the full compliment of data collected over the life of the contract (Phase III). Third party scientific review may assist the contractor in producing a higher quality Final Report with completion of the final 2 phases of the project.

Morgan, David

2004-02-01T23:59:59.000Z

366

In situ X-ray absorption fine structure studies of a manganese dioxide electrode in a rechargeable MnO{sub 2}/Zn alkaline battery environment  

DOE Green Energy (OSTI)

Electronic and structural aspects of a MnO{sub 2} electrode in a rechargeable MnO{sub 2}/Zn battery environment have been investigated by in situ Mn K-edge X-ray absorption fine structure (XAFS). The relative amplitudes of the three major Fourier transform shells of the EXAFS (extended XAFS) function of the rechargeable MnO{sub 2} electrode in the undischarged state were found to be similar to those found for ramsdellite, a MnO{sub 2} polymorph with substantial corner-sharing linkages among the basic MnO{sub 6} octahedral units. The analyses of the background-subtracted pre-edge peaks and absorption edge regions for the nominally 1-e{sup {minus}} discharged electrode were consistent with Mn{sup 3+} as being the predominant constituent species, rather than a mixture of Mn{sup 4+} and Mn{sup 2+} sites. Furthermore, careful inspection of both the XANES (X-ray absorption near edge structure) and EXAFS indicated that the full recharge of MnO, which had been previously discharged either by a 1- or 2-equivalent corner-sharing linkages compared to the original undischarged MnO{sub 2}.

Mo, Y.; Hu, Y.; Bae, I.T.; Miller, B.; Scherson, D.A. [Case Western Reserve Univ., Cleveland, OH (United States). Dept. of Chemistry; Antonio, M.R. [Argonne National Lab., IL (United States). Chemistry Div.

1996-12-31T23:59:59.000Z

367

In situ and ex situ spectroelectrochemical and X-ray absorption studies on rechargeable, chemically-modified and other MnO{sub 2} materials  

DOE Green Energy (OSTI)

A combined series of in situ and ex situ UV spectroelectrochemical and X-ray absorption studies have been made on MnO{sub 2}, chemically-modified by small amounts of Bi(III), and comparatively on other MnO{sub 2} materials such as a blank (Bi-free) and {gamma}-MnO{sub 2}. These procedures are applied in order to follow the oxidation-states of Bi and of Mn during the course of discharge and recharge of MnO{sub 2} as a battery cathode material, and the extents of rechargeability that can be achieved with such materials. Presence of Bi appears to provide a preferred ``heterogeneous`` discharge/recharge pathway involving a soluble Mn(III) intermediate, over the alternative ``electron-proton`` hopping, solid-state mechanism. From XAS results, it is concluded that presence of Bi, although not affecting the O-coordination, does influence the Mn-Mn coordination, determining the way the MnO{sub 2} coordination octahedra are connected.

Conway, B.E.; Qu, D.; McBreen, J. [Ottawa Univ., ON (Canada). Dept. of Chemistry]|[Brookhaven National Lab., Upton, NY (United States)

1992-12-31T23:59:59.000Z

368

Flow-Assisted Alkaline Battery: Low-Cost Grid-Scale Electrical Storage using a Flow-Assisted Rechargeable Zinc-Manganese Dioxide Battery  

SciTech Connect

GRIDS Project: Traditional consumer-grade disposable batteries are made of Zinc and Manganese, 2 inexpensive, abundant, and non-toxic metals. But these disposable batteries can only be used once. If they are recharged, the Zinc in the battery develops filaments called dendrites that grow haphazardly and disrupt battery performance, while the Manganese quickly loses its ability to store energy. CUNY Energy Institute is working to tame dendrite formation and to enhance the lifetime of Manganese in order to create a long-lasting, fully rechargeable battery for grid-scale energy storage. CUNY Energy Institute is also working to reduce dendrite formation by pumping fluid through the battery, enabling researchers to fix the dendrites as they’re forming. The team has already tested its Zinc battery through 3,000 recharge cycles (and counting). CUNY Energy Institute aims to demonstrate a better cycle life than lithium-ion batteries, which can be up to 20 times more expensive than Zinc-based batteries.

2010-09-15T23:59:59.000Z

369

Brake System Modeling and Control  

E-Print Network (OSTI)

of 3447 kPa Upper Left: Volts vs. Angular Position, showingone cycle. Lower Right: Volts vs. Position at several brakewith a magnitude of several volts. The INA118, a precision

Hedrick, J. K.; Uchanski, M.

2001-01-01T23:59:59.000Z

370

Mechanical and Hydraulic Press Brakes  

Science Conference Proceedings (OSTI)

...drives, with mechanical linkages from motor to flywheel to clutch to gears to crankshaft to crank arm to ram (Fig. 4). They all have one thing in common: a crankshaft action that converts rotary motion into straight, reciprocating motion (Fig. 5). During a stroke cycle, the crank arm drives the ram down...

371

Vehicle Specifications  

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

E27C177982 Vehicle Specifications Engine: 2.5 L 4-cylinder Electric Motor: 105 kW Battery: NiMH Seatbelt Positions: Five Payload: 981 lbs Features: Regenerative braking Traction...

372

VIN# JHMZE2H59AS011748 Vehicle Specifications  

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

H59AS011748 Vehicle Specifications Engine: 1.3 L 4-cylinder Electric Motor: 10 kW Battery: NiMH Seatbelt Positions: Five Payload: 907 lbs Features: Regenerative braking Traction...

373

VIN# KMHEC4A43BA004932 Vehicle Specifications  

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

3BA004932 Vehicle Specifications Engine: 2.4 L Electric Motor: 30 kW Battery: Lithium Polymer Seatbelt Positions: Five Payload: 1074 lbs Features: Regenerative braking Traction...

374

Vehicle Specifications  

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

E87C172351 Vehicle Specifications Engine: 2.5 L 4-cylinder Electric Motor: 105 kW Battery: NiMH Seatbelt Positions: Five Payload: 981 lbs Features: Regenerative braking Traction...

375

Vehicle Specifications  

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

Z07S838122 Vehicle Specifications Engine: 2.4 L 4 cylinder Electric Motor: 14.5 kW Battery: NiMH Seatbelt Positions: Five Payload: 1,244 lbs Features: Regenerative braking wABS 4...

376

Vehicle Specifications  

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

2AR194699 Vehicle Specifications Engine: 2.5 L 4-cylinder Electric Motor: 60 kW Battery: NiMH Seatbelt Positions: Five Payload: 850 lbs Features: Regenerative braking Traction...

377

VIN# JHMZE2H78AS010141 Vehicle Specifications  

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

H78AS010141 Vehicle Specifications Engine: 1.3 L 4-cylinder Electric Motor: 10 kW Battery: NiMH Seatbelt Positions: Five Payload: 907 lbs Features: Regenerative braking Traction...

378

Vehicle Specifications  

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

4AR144757 Vehicle Specifications Engine: 2.5 L 4-cylinder Electric Motor: 60 kW Battery: NiMH Seatbelt Positions: Five Payload: 850 lbs Features: Regenerative braking Traction...

379

VIN# JTDKN3DU5A0006063 Vehicle Specifications  

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

DU5A0006063 Vehicle Specifications Engine: 1.8 L 4-cylinder Electric Motor: 60 kW Battery: NiMH Seatbelt Positions: Five Payload: 885 lbs Features: Regenerative braking Traction...

380

Vehicle Specifications  

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

Z37S813344 Vehicle Specifications Engine: 2.4 L 4 cylinder Electric Motor: 14.5 kW Battery: NiMH Seatbelt Positions: Five Payload: 1,244 lbs Features: Regenerative braking wABS 4...

Note: This page contains sample records for the topic "regenerative braking recharges" 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

VIN# JTDKN3DU2A5010462 Vehicle Specifications  

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

DU2A5010462 Vehicle Specifications Engine: 1.8 L 4-cylinder Electric Motor: 60 kW Battery: NiMH Seatbelt Positions: Five Payload: 885 lbs Features: Regenerative braking Traction...

382

VIN# KMHEC4A47BA003539 Vehicle Specifications  

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

7BA003539 Vehicle Specifications Engine: 2.4 L Electric Motor: 30 kW Battery: Lithium Polymer Seatbelt Positions: Five Payload: 1074 lbs Features: Regenerative braking Traction...

383

MonthlyReport  

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

3 Overall DC electrical energy consumption (DC Whmi) 71 Overall DC electrical energy captured from regenerative braking (DC Whmi) 43 Total number of trips 13,167 Total distance...

384

No Slide Title  

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

12kWpeak ISG 12kWpeak ISG NEW ORBITAL MODULES from EXIDE 8 x 6 V VW Golf - Stopstart, regenerative braking, launch-assist Battery 24 Ah, 8 x 6 V, spiral Medium Hybrids Project...

385

_MainReport  

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

15 Overall DC electrical energy consumption (DC Whmi) 13 Overall DC electrical energy captured from regenerative braking (DC Whmi) 27 Total number of trips 2,405 Total distance...

386

MonthlyReport  

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

0 Overall DC electrical energy captured from regenerative braking (DC Whmi) 43 Total number of trips 12,106 Total distance traveled (mi) 110,949 Trips in Charge Depleting (CD)...

387

_MainReport  

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

8 Overall DC electrical energy consumption (DC Whmi) 70 Overall DC electrical energy captured from regenerative braking (DC Whmi) 28 Total number of trips 1,225 Total distance...

388

_MainReport  

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

4 Overall DC electrical energy consumption (DC Whmi) 65 Overall DC electrical energy captured from regenerative braking (DC Whmi) 28 Total number of trips 2,348 Total distance...

389

_MainReport  

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

33 Overall DC electrical energy consumption (DC Whmi) 26 Overall DC electrical energy captured from regenerative braking (DC Whmi) 27 Total number of trips 6,332 Total distance...

390

KEMA Proposal_Report w Appendices Template 2008 Gas Flame 2  

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

typical T&D losses due to the need to use steel for catenary conductor) and can capture regenerative braking as well. Using storage avoids having to perform expensive or...

391

MonthlyReport  

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

4 Overall DC electrical energy consumption (DC Whmi) 72 Overall DC electrical energy captured from regenerative braking (DC Whmi) 44 Total number of trips 13,043 Total distance...

392

_MainReport  

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

2 Overall DC electrical energy captured from regenerative braking (DC Whmi) 44 Total number of trips 36,749 Total distance traveled (mi) 343,675 Trips in Charge Depleting (CD)...

393

42V_TestManual_April_2003.PDF  

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

start (only) and energy for engine-off accessory loads, with no requirement to accept regenerative energy from braking. The M-HEV concept assumes that power is also supplied...

394

2008 Advanced Vehicle Technology Analysis and Evaluation Activities...  

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

10 Figure 11. Distribution of Charging Peak Power per Trip However, what matters for the regenerative braking events is the percentage of energy that can be recuperated. Figure 12...

395

_MainReport  

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

3 Overall DC electrical energy consumption (DC Whmi) 4 Overall DC electrical energy captured from regenerative braking (DC Whmi) 43 Total number of trips 5,888 Total distance...

396

MonthlyReport  

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

1 Overall DC electrical energy consumption (DC Whmi) 65 Overall DC electrical energy captured from regenerative braking (DC Whmi) 45 Total number of trips 10,555 Total distance...

397

MonthlyReport  

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

5 Overall DC electrical energy consumption (DC Whmi) 54 Overall DC electrical energy captured from regenerative braking (DC Whmi) 50 Total number of trips 4,546 Total distance...

398

_MainReport  

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

3 Overall DC electrical energy consumption (DC Whmi) 71 Overall DC electrical energy captured from regenerative braking (DC Whmi) 42 Total number of trips 24,834 Total distance...

399

Simulator Makes Green Racing Real  

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

graphics to display the race car's speed, indicators of when the hybrid system is using regenerative braking and boost, a "Hybrid Energy" gauge to show the amount of energy...

400

Assumptions to the Annual Energy Outlook 2002 - Transportation...  

Annual Energy Outlook 2012 (EIA)

no on-board fuel reformers), or if the vehicle has ZEV-like equipment on-board such as regenerative braking, advanced batteries, or an advanced electric drivetrain. An emission...

Note: This page contains sample records for the topic "regenerative braking recharges" 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

MonthlyReport  

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

7 Overall DC electrical energy consumption (DC Whmi) 54 Overall DC electrical energy captured from regenerative braking (DC Whmi) 47 Total number of trips 6,560 Total distance...

402

_MainReport  

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

mi) 79 Overall DC electrical energy consumption (DC Whmi) 63 Overall DC electrical energy captured from regenerative braking (DC Whmi) 31 Total number of trips 2,245 Total...

403

_MainReport  

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

0 Overall DC electrical energy consumption (DC Whmi) 0 Overall DC electrical energy captured from regenerative braking (DC Whmi) 27 Total number of trips 1,579 Total distance...

404

_MainReport  

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

4 Overall DC electrical energy consumption (DC Whmi) 59 Overall DC electrical energy captured from regenerative braking (DC Whmi) 47 Total number of trips 21,661 Total distance...

405

_MainReport  

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

33 Overall DC electrical energy consumption (DC Whmi) 74 Overall DC electrical energy captured from regenerative braking (DC Whmi) 33 Total number of trips 5,273 Total distance...

406

_MainReport  

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

1 Overall DC electrical energy consumption (DC Whmi) 64 Overall DC electrical energy captured from regenerative braking (DC Whmi) 30 Total number of trips 4,292 Total distance...

407

Energy Storage for Transportation Applications I - Programmaster.org  

Science Conference Proceedings (OSTI)

Oct 17, 2011 ... Li plating limits the maximum safe charging rate of Li-ion batteries, and thus the amount of energy that can be captured by regenerative braking.

408

NREL: News Feature - NREL Helps Corporate Fleets Go Green  

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

by Eaton Corp. These trucks can weigh in at as much as 55,000 lbs. The system includes regenerative braking and lithium-ion batteries that provide energy storage. Energy that is...

409

Microsoft PowerPoint - Francfort AVTA-INL EDVs - The Networked...  

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

mile average trip distance * 5.3 mph average speed g * 32.2 average stops per mile * 15% regenerative braking energy recovery - All trips 1 43 AC DC Whmi ratio 668 AC Whmi...

410

_MainReport  

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

2 Overall DC electrical energy consumption (DC Whmi) 70 Overall DC electrical energy captured from regenerative braking (DC Whmi) 43 Total number of trips 95,019 Total distance...

411

_MainReport  

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

0 Overall DC electrical energy consumption (DC Whmi) 69 Overall DC electrical energy captured from regenerative braking (DC Whmi) 44 Total number of trips 88,891 Total distance...

412

Studies on a novel secondary battery: MH/MnO{sub 2} rechargeable battery. 2: Characteristics of the MnO{sub 2} cathode  

SciTech Connect

The characteristics of the MnO{sub 2} cathode of a MH/MnO{sub 2} battery have been studied by cyclic voltammetry, x-ray diffraction, and potentiostatic techniques. It was found that the addition of Ni(OH){sub 2} to the MnO{sub 2} can prevent overcharge of the MnO{sub 2} and decrease the imbalance of the charge/discharge states of the positive and negative electrodes, raise the working voltage of the MH/MnO{sub 2} cell, and prevent the formation of Mn{sub 3}O{sub 4}, thereby improving the rechargeability of the MnO{sub 2} electrode. The discharge mechanism is also discussed.

Xia, X.; Guo, Z. [Xinjiang Univ., Urumqi, Xinjiang (China). Dept. of Chemistry

1997-08-01T23:59:59.000Z

413

NIST FUNCTIONAL IMAGING FOR REGENERATIVE ...  

Science Conference Proceedings (OSTI)

... looking at this piece of coal and this is being focal ... on this is as low as – you can report lower ... system to basically drive boot for or a reporter thereof to ...

2012-10-03T23:59:59.000Z

414

Self-Organized Amorphous TiO2 Nanotube Arrays on Porous Ti Foam for Rechargeable Lithium and Sodium Ion Batteries  

SciTech Connect

Self-organized amorphous TiO2 nanotube arrays (NTAs) were successfully fabricated on both Ti foil and porous Ti foam through electrochemical anodization techniques. The starting Ti foams were fabricated using ARCAM s Electron Beam Melting (EBM) technology. The TiO2 NTAs on Ti foam were used as anodes in lithium ion batteries; they exhibited high capacities of 103 Ahcm-2 at 10 Acm-2 and 83 Ahcm-2 at 500 Acm-2, which are two to three times higher than those achieved on the standard Ti foil, which is around 40 Ahcm-2 at 10 Acm-2 and 24 Ahcm-2 at 500 Acm-2, respectively. This improvement is mainly attributed to higher surface area of the Ti foam and higher porosity of the nanotube arrays layer grown on the Ti foam. In addition, a Na-ion half-cell composed of these NTAs anodes and Na metal showed a self-improving specific capacity upon cycling at 10 Acm-2. These results indicate that TiO2 NTAs grown on Ti porous foam are promising electrodes for Li-ion or Na-ion rechargeable batteries.

Bi, Zhonghe [ORNL; Paranthaman, Mariappan Parans [ORNL; Menchhofer, Paul A [ORNL; Dehoff, Ryan R [ORNL; Bridges, Craig A [ORNL; Chi, Miaofang [ORNL; Guo, Bingkun [ORNL; Sun, Xiao-Guang [ORNL; Dai, Sheng [ORNL

2013-01-01T23:59:59.000Z

415

Novel synthesis process and structure refinements of Li{sub 4}Mn{sub 5}O{sub 12} for rechargeable lithium batteries  

DOE Green Energy (OSTI)

Well crystallized Li4Mn5O12 was prepared from LiOAc-Mn(NO3)2 under flowing oxygen. Rietveld refinement with XRD and neutron powder diffraction indicated that Li4Mn5O12 has cubic spinel structure in which the Li ions occupy both the tetrahedral sites 8a and part of the octahedral sites 16d but not the 16c sites, while all the Mn ions occupy the 16d sites of the space group Fd{bar 3}m. The lattice parameter was found to be sensitive to synthesis temperature owing to variation in Mn valence. Sample prepared at 500 C showed better electrode performance: a rechargeable capacity of 135 mAh/g for the cell Li/Li4Mn5O12 at cell voltages 2.5-3.6 V. It is found that Mn oxidation state in Li4Mn5O12 has a strong effect on electrode performance of Li/Li4Mn5O12 cell.

Takada, Toshimi; Hayakawa, Hiroshi; Akiba, Etsuo [National Inst. of Materials and Chemical Research, Tsukuba, Ibaraki (Japan); Izumi, Fujio [National Inst. for Research in Inorganic Materials, Tsukuba (Japan); Chakoumakos, B.C. [Oak Ridge National Lab., TN (United States)

1996-12-31T23:59:59.000Z

416

EV Everywhre Grand Challenge - Battery Status and Cost Reduction...  

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

Electric Range, miles 200-300 Discharge Pulse Power (10 sec), kW 80-120 Regenerative Pulse Power (10 sec), kW 40 Available Energy, kWh 40-60 Recharge...

417

Rechargeable Batteries: Basics, Pitfalls, and Safe Recharging Practices  

E-Print Network (OSTI)

Abstract: This overview of charging methods and current battery technologies gives you a better understanding of the batteries used in portable devices. Nickel-cadmium (NiCd), nickel-metal-hydride (NiMH), and lithium-ion (Li+) battery chemistries are discussed. The article also describes a product that protects single-cell lithium-ion and lithium-polymer batteries.

unknown authors

2005-01-01T23:59:59.000Z

418

Gas turbine engine braking and method  

SciTech Connect

A method is described of decelerating a ground vehicle driven by a gas turbine engine having a gas generator section and a free turbine output power section driven by a gas flow from the gas generator section, comprising the steps of: altering the incidence of gas flow from the gas generator section onto the free turbine section whereby said gas flow opposes rotation of the free turbine section; increasing gas generator section speed; and subsequent to said altering and increasing steps, selectively mechanically interconnecting said gas generator and free turbine sections whereby the rotational inertia of the gas generator section tends to decelerate the free turbine section.

Mattson, G.; Woodhouse, G.

1980-07-01T23:59:59.000Z

419

Rechargeable Batteries, Photochromics, Electrochemical Lithography...  

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

employed to explore in detail fundamental interfacial processes. Using current-sensing atomic forcemicroscopy (CSAFM), small variations in the electronic conductance of battery...

420

RECHARGEABLE MOLTEN-SALT CELLS  

E-Print Network (OSTI)

KC! /FeS 2 cell lithium-silicon magnesium oxide molten-saltmolten-salt cells Na/Na glass/Na:z.Sn-S cell Na/NazO•xA!Symposium on Molten Salts, Physical Electrochemistry

Cairns, Elton J.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

RECHARGEABLE MOLTEN-SALT CELLS  

E-Print Network (OSTI)

October 1977-September 1978, Argonne National Lab Report 78-New York, 1976, p. 473. Argonne National Laboratory, AnnualOctober 1978-March 1979, Argonne National Lab Report No. 70-

Cairns, Elton J.

2013-01-01T23:59:59.000Z

422

Increased fuel economy in transportation systems by use of energy management. Third year's program. Final report, May 1, 1976--July 1, 1976  

DOE Green Energy (OSTI)

A report is given of the results accomplished during the third year of a three-year research program, the overall goal of which has been to conceive and evaluate practical ways to increase automobile fuel economy by energy management within the engine-transmission-vehicle system. The third year was devoted primarily to the detailed design, construction, and preliminary evaluation of a Flywheel Energy Management Powerplant (FEMP) installed in a Pinto. The vehicle has been built to experimentally verify performance simulations and to allow the practical aspects of a real flywheel vehicle to be studied. The FEMP consists basically of an internal combustion engine, a high-speed energy-storage flywheel, and a hydrostatic power-split continuously-variable transmission (CVT) system. The flywheel drives the car, and the engine comes on to ''recharge'' it (with efficient wide-open throttle operation) only when the flywheel speed drops below a predetermined value. The concept also permits effective and efficient regenerative braking. Computer simulations have indicated an improvement in city fuel mileage of about 50%, with improvements of 100% appearing feasible with further research. Preliminary testing of the car shows favorable performance.

Beachley, N.H.; Frank, A.A.

1976-07-01T23:59:59.000Z

423

VEHICLE SPECIFICATIONS Vehicle Features Base Vehicle: 2010 Honda  

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

Honda Honda Civic Hybrid VIN: JHMFA3F24AS005577 Seatbelt Positions: 5 Standard Features: Air Conditioning Power Locks Power Steering Power Brakes Power Windows Cruise Control Front Disc Brakes Rear Disc Brakes Front Wheel Drive Regenerative Braking Anti-Lock Brakes Traction Control Air Bags AM/FM Stereo with CD State of Charge Meter 1 Weights Design Curb Weight: 2877 lb Delivered Curb Weight: 2982 lb Distribution F/R (%): 57/43 GVWR: 3792 lb GAWR F/R: 1973/1841 lb Payload 2 : 810 lb Performance Goal: 400 lb Dimensions Wheelbase: 106.3 in Track F/R: 59.1/60.2 in Length: 177.3 in Width: 69.0 in Height: 56.3 in Ground Clearance: 6.0 in Performance Goal: 5.0 in Tires Manufacturer: Bridgestone

424

Real-time scheduling with regenerative energy  

E-Print Network (OSTI)

This paper investigates real-time scheduling in a system whose energy reservoir is replenished by an environmental power source. The execution of tasks is deemed primarily energy-driven, i.e., a task may only respect its deadline if its energy demand can be satisfied early enough. Hence, a useful scheduling policy should account for properties of the energy source, capacity of the energy storage as well as power dissipation of the single tasks. We show that conventional scheduling algorithms (like e.g. EDF) are not suitable for this scenario. Based on this motivation, we state and prove optimal scheduling algorithms that jointly handle constraints from both energy and time domain. Furthermore, an offline schedulability test for a set of periodic or even bursty tasks is presented. Finally, we validate the proposed theory by means of simulation and compare our algorithms with the classical Earliest Deadline First Algorithm. 1.

C. Moser; D. Brunelli; L. Thiele; L. Benini

2006-01-01T23:59:59.000Z

425

Study on Energy-Saving Control Strategy of Idling Stop System for City Bus  

Science Conference Proceedings (OSTI)

Fuel economy of city bus is poor, because the urban traffic is congested, the city bus is constantly in the idle condition resulting in fuel consumption is increasing. In order to improve the vehicle fuel economy and protect environment, the energy consumption ... Keywords: idling stop, energy-saving, control strategy, regenerative braking

Daxing Huang; Ren He

2010-06-01T23:59:59.000Z

426

UCDavis University of California Learning By Driving  

E-Print Network (OSTI)

% 29% 0% 2% 10% 37% 39% 71% Solar Wind Hydro Nuclear Natural Gas Coal The electricity for charging fun with it. "I love the regenerative braking. In fact, I miss it when I drive my other cars." ­ Household 8 "It is like driving a slot car. It is exciting; it is as much fun as accelerating" ­ Survey

California at Davis, University of

427

UCDavis University of California About PEV Consumers  

E-Print Network (OSTI)

membership in it 1. Little to no participation in on-line forums (beyond reading it) 2. Essentially University of California Households Characteristics 96% live in single family House 96% own their house ­ 1 learn about PEVs? · By experience · How regenerative braking works · How far they can and do drive

California at Davis, University of

428

Hybrid energy storage systems and battery management for electric vehicles  

Science Conference Proceedings (OSTI)

Electric vehicles (EV) are considered as a strong alternative of internal combustion engine vehicles expecting lower carbon emission. However, their actual benefits are not yet clearly verified while the energy efficiency can be improved in many ways. ... Keywords: battery-supercapacitor hybrid, charging/discharging asymmetry, electric vehicle, regenerative braking

Sangyoung Park, Younghyun Kim, Naehyuck Chang

2013-05-01T23:59:59.000Z

429

ARES NW Power and Conservation Council Presentation  

E-Print Network (OSTI)

& Proprietary #12; Excess power due to low demand, grid energy used to power shuttle units uphill Shortfall of power, due to high demand, energy supplied into the grid by regenerative braking of shuttle travel length 3.6 miles · 8 4-car shu^le-trains with a maximum

430

Faculty of Science and Engineering School of Engineering  

E-Print Network (OSTI)

for vehicle design. Working with specialists in vehicle controls and advanced powertrains, you will study modern vehicle powertrains including alternatively fuelled engines, hybrid vehicles, CVT drivelines and regenerative braking. You will examine future directions such as electric vehicles and fuel cell technology

431

Few people were left unaffected by the soaring oil prices of summer 2008. Motorists were the hardest hit  

E-Print Network (OSTI)

engine operating at constant speed. Braking recharges the battery, which helps to reduce fuel costs and the electrolyte that ultimately destroys the battery. Plus, electric cars cost a lot. Despite these weaknesses, hy for their food as higher transport costs were passed on from the retailer to the consumer. Sincethen

Andelman, David

432

Microsoft Word - chvs10.html  

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

7 Chevrolet S-10 Electric 7 Chevrolet S-10 Electric VEHICLE SPECIFICATIONS PURPOSE-BUILT VEHICLE Base Vehicle: 1997 Chevrolet S-10 VIN: 1GCDE14H4V80003EX Seatbelt Positions: Three Standard Features: Heat Pump Climate Control System Auxillary Diesel Fuel Fired Heater (Only operates Below 40 F) Cruise Control Tilt Steering Wheel Front Wheel Drive Power Steering Power Brakes Anti-Lock Brakes Front Disk Brakes Regenerative Braking Drivers Side Air Bags AM/FM Stereo Radio Half-Bed Tonneau Cover BATTERY Manufacturer: Delphi Energy Type: Valve Regulated Lead Acid Number of Modules: 26 Weight of Module: 19 kg Weight of Pack(s): 575 kg Pack Locations: Underbody Nominal Module Voltage: 12 V Nominal System Voltage: 312 V Nominal Capacity (C/2): 48 Ah WEIGHTS Design Curb Weight: 4300 lbs

433

Organic Materials for Electrodes in Rechargeable Batteries  

Science Conference Proceedings (OSTI)

Phase Change Thermal Energy Storage and Recovery in a Complex-Shaped Double Pipe Heat Exchanger · Sodium Sulfur (NaS) Battery Research in Korea: ...

434

Electroactive Polymer for Overcharge Protection in Rechargeable...  

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

the cell materials and causes safety problems. For multi-cell battery packs designed for high voltage applications (such as EV's and HEV's), it is essential to incorporate an...

435

Advanced materials for lithium rechargeable battery.  

E-Print Network (OSTI)

??Due to the rapid increase in the use of portable computers, mobile phones, and electric vehicles, there is an increasing demand for larger capacity, smaller… (more)

Idris, Nurul Hayati

2011-01-01T23:59:59.000Z

436

Spatially Resolved Porous Electrode Theory for Rechargeable ...  

Science Conference Proceedings (OSTI)

Symposium, Nanostructured Materials for Lithium Ion Batteries and for Supercapacitors. Presentation Title, Spatially Resolved Porous Electrode Theory for ...

437

Design and Simulation of Lithium Rechargeable Batteries  

E-Print Network (OSTI)

The LiNiOiCarbon Lithium-Ion Battery," S. S. lonics, 69,238-the mid-1980's, the lithium-ion battery based on a carboncommercialization of the lithium-ion battery, several other

Doyle, C.M.

2010-01-01T23:59:59.000Z

438

Nanostructured, Rechargeable Solid-State Vaccine for ...  

electrolytes that conduct due to the movement of ions through voids. They act as a battery because they conduct ions but act as an insulator toward ...

439

High Performance Binderless Electrodes for Rechargeable ...  

An electrode (110) is provided that may be used in an electrochemical device (100) such as an energy storage/discharge device, e.g., a lithium-ion battery, ...

440

Composite cathodes for lithium rechargeable batteries  

E-Print Network (OSTI)

The utility of incorporating continuous, nanoscale vanadium oxide phases within preferred domains of self-organizing copolymers was investigated towards the fabrication of composite, nanoarchitectured electrode materials ...

Olivetti, Elsa A

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Nanostructured Materials for Rechargeable Batteries and for ...  

Science Conference Proceedings (OSTI)

Jul 15, 2013... synthesis and application of high performance biochars with tuned porosity and surface functionality, Si and Ge nanowires, novel oxides for ...

442

Ionic liquids for rechargeable lithium batteries  

E-Print Network (OSTI)

in a Li-Li cell. 0.1 mA, 50 min -0.1 mA, 50 min E (volts)E (volts)E (Volts) E (Volts) Time (Sec) Time (Sec) Figure 16. First

Salminen, Justin; Papaiconomou, Nicolas; Kerr, John; Prausnitz, John; Newman, John

2008-01-01T23:59:59.000Z

443

Tutorial Luncheon: Advanced Rechargeable Batteries: A Materials ...  

Science Conference Proceedings (OSTI)

Batteries for these applications need to satisfy a range of requirements, including high energy density, low materials and processing costs, and avoidance of ...

444

Key challenges in developing rechargeable magnesium batteries...  

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

application as post lithium-ion batteries, due to the following advantages; 1) high energy density, 2) low cost and 3) intrinsic safety. If two electron and divalent Mg ion...

445

Ionic liquids for rechargeable lithium batteries  

SciTech Connect

We have investigated possible anticipated advantages of ionic-liquid electrolytes for use in lithium-ion batteries. Thermal stabilities and phase behavior were studied by thermal gravimetric analysis and differential scanning calorimetry. The ionic liquids studied include various imidazoliumTFSI systems, pyrrolidiniumTFSI, BMIMPF{sub 6}, BMIMBF{sub 4}, and BMIMTf. Thermal stabilities were measured for neat ionic liquids and for BMIMBF{sub 4}-LiBF{sub 4}, BMIMTf-LiTf, BMIMTFSI-LiTFSI mixtures. Conductivities have been measured for various ionic-liquid lithium-salt systems. We show the development of interfacial impedance in a Li|BMIMBF{sub 4} + LiBF{sub 4}|Li cell and we report results from cycling experiments for a Li|BMIMBF{sub 4} + 1 mol/kg LIBF{sub 4}|C cell. The interfacial resistance increases with time and the ionic liquid reacts with the lithium electrode. As expected, imidazolium-based ionic liquids react with lithium electrodes. We seek new ionic liquids that have better chemical stabilities.

Salminen, Justin; Papaiconomou, Nicolas; Kerr, John; Prausnitz,John; Newman, John

2005-09-29T23:59:59.000Z

446

Ionic liquids for rechargeable lithium batteries  

E-Print Network (OSTI)

M. Armand, “Room temperature molten salts as lithium batteryZ. Suarez, “Ionic liquid (molten salt) phase organometallic

Salminen, Justin; Papaiconomou, Nicolas; Kerr, John; Prausnitz, John; Newman, John

2008-01-01T23:59:59.000Z

447

Design and Simulation of Lithium Rechargeable Batteries  

E-Print Network (OSTI)

to increase the battery's capacity (j n u J per unit volume.to estimate the battery capacity by relating the dischargealso the specific capacity of current battery systems. It is

Doyle, C.M.

2010-01-01T23:59:59.000Z

448

Rechargeable thin-film electrochemical generator  

DOE Patents (OSTI)

An improved electrochemical generator is disclosed. The electrochemical generator includes a thin-film electrochemical cell which is maintained in a state of compression through use of an internal or an external pressure apparatus. A thermal conductor, which is connected to at least one of the positive or negative contacts of the cell, conducts current into and out of the cell and also conducts thermal energy between the cell and thermally conductive, electrically resistive material disposed on a vessel wall adjacent the conductor. The thermally conductive, electrically resistive material may include an anodized coating or a thin sheet of a plastic, mineral-based material or conductive polymer material. The thermal conductor is fabricated to include a resilient portion which expands and contracts to maintain mechanical contact between the cell and the thermally conductive material in the presence of relative movement between the cell and the wall structure. The electrochemical generator may be disposed in a hermetically sealed housing.

Rouillard, Roger (Beloeil, CA); Domroese, Michael K. (South St. Paul, MN); Hoffman, Joseph A. (Minneapolis, MN); Lindeman, David D. (Hudson, WI); Noel, Joseph-Robert-Gaetan (St-Hubert, CA); Radewald, Vern E. (Austin, TX); Ranger, Michel (Lachine, CA); Sudano, Anthony (Laval, CA); Trice, Jennifer L. (Eagan, MN); Turgeon, Thomas A. (Fridley, MN)

2000-09-15T23:59:59.000Z

449

Customer Side Monitoring at an Automobile Brake Manufacturer  

Science Conference Proceedings (OSTI)

This customer-side monitoring project correlated distribution-related power quality (PQ) events with customer-side events and vice-versa and characterized equipment sensitivity to voltage variations. It also characterized overall levels of PQ on the feeder and in the facility and compared these levels with the national baseline sample being gathered for the Distribution Power Quality project.

2003-12-31T23:59:59.000Z

450

Magnetite Formation Observed with TEM on Brake Discs  

Science Conference Proceedings (OSTI)

Carbothermal Production of Zrb2-Zro2 Composite Powder from Zro2-B2O3/B System by ... Lignocellulosic-Based Carbon Fibers from Biofuel Production Wastes.

451

NREL: Continuum Magazine - Putting On the Brakes to Protect America...  

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

beyond. Sustainable Transportation Reaches Across-and Beyond-Parks A photo of three propane buses parked on asphalt road in treed park setting with stone cliffs in the...

452

MonthlyReport  

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

0 0 Number of trips 1,610 Distance traveled (mi) 372 Percent of total distance traveled (%) 72% Average Trip Distance (mi) 0.2 Average Driving Speed (mph) 5.2 Average Stops per mile 32.1 Percent of Regen Braking Energy Recovery (%) 13% City Trips ( < 5 stops/mile & <37 mph avg) DC electrical energy consumption (DC Wh/mi) 383 Number of trips 114 Distance traveled (mi) 144 Percent of total distance traveled (%) 28% Average Trip Distance (mi) 1.3 Average Driving Speed (mph) 18.3 Average Stops per mile 3.8 Percent of Regen Braking Energy Recovery (%) 16% Highway Trips ( 37 mph avg) DC electrical energy consumption (DC Wh/mi) 549 Number of trips 5 Distance traveled (mi) 2 Percent of total distance traveled (%) 0% Average Trip Distance (mi) 0.4 Average Driving Speed (mph)

453

MonthlyReport  

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

530 530 Number of trips 1,308 Distance traveled (mi) 495 Percent of total distance traveled (%) 69% Average Trip Distance (mi) 0.4 Average Driving Speed (mph) 5.6 Average Stops per mile 31.4 Percent of Regen Braking Energy Recovery (%) 15% City Trips ( < 5 stops/mile & <37 mph avg) DC electrical energy consumption (DC Wh/mi) 471 Number of trips 91 Distance traveled (mi) 175 Percent of total distance traveled (%) 24% Average Trip Distance (mi) 1.9 Average Driving Speed (mph) 16.6 Average Stops per mile 3.8 Percent of Regen Braking Energy Recovery (%) 13% Highway Trips ( 37 mph avg) DC electrical energy consumption (DC Wh/mi) 357 Number of trips 2 Distance traveled (mi) 49 Percent of total distance traveled (%) 7% Average Trip Distance (mi) 24.7 Average Driving Speed (mph)

454

Engines - Emissions Assessment  

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

EPRI Hybrid Electric Vehicle Working Group: HEV Costs and Emissions EPRI Hybrid Electric Vehicle Working Group: HEV Costs and Emissions Hybrid electric vehicles (HEVs) are attractive options for increasing vehicle fuel economy and reducing emissions of criteria pollutants and greenhouse gases. Two automobile manufacturers have already introduced HEVs, and other manufacturers are planning to introduce their own models. One available HEV combines mass reduction (also applicable to conventional vehicles) with idle-stop, regenerative braking, and electric-drive assist to achieve a fuel economy more than 2.5 times the current Corporate Average Fuel Economy (CAFE) standard. The second HEV combines idle-stop, regenerative braking, electric assist acceleration, and continuously variable transmission (CVT) to achieve a fuel economy of more than twice the current CAFÉ standard, qualifying as a super ultra-low emissions vehicle (SULEV).

455

MonthlyReport  

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

74 74 Number of trips 399 Distance traveled (mi) 148 Percent of total distance traveled (%) 73% Average Trip Distance (mi) 0.4 Average Driving Speed (mph) 6.3 Average Stops per mile 35.5 Percent of Regen Braking Energy Recovery (%) 11% City Trips ( < 5 stops/mile & <37 mph avg) DC electrical energy consumption (DC Wh/mi) 423 Number of trips 27 Distance traveled (mi) 54 Percent of total distance traveled (%) 27% Average Trip Distance (mi) 2.0 Average Driving Speed (mph) 20.7 Average Stops per mile 3.5 Percent of Regen Braking Energy Recovery (%) 15% Highway Trips ( 37 mph avg) DC electrical energy consumption (DC Wh/mi) 0 Number of trips 0 Distance traveled (mi) 0 Percent of total distance traveled (%) 0% Average Trip Distance (mi) 0.0 Average Driving Speed (mph)

456

MonthlyReport  

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

0 0 Number of trips 493 Distance traveled (mi) 189 Percent of total distance traveled (%) 38% Average Trip Distance (mi) 0.4 Average Driving Speed (mph) 4.9 Average Stops per mile 28.7 Percent of Regen Braking Energy Recovery (%) 15% City Trips ( < 5 stops/mile & <37 mph avg) DC electrical energy consumption (DC Wh/mi) 377 Number of trips 67 Distance traveled (mi) 275 Percent of total distance traveled (%) 56% Average Trip Distance (mi) 4.1 Average Driving Speed (mph) 17.9 Average Stops per mile 3.7 Percent of Regen Braking Energy Recovery (%) 13% Highway Trips ( 37 mph avg) DC electrical energy consumption (DC Wh/mi) 438 Number of trips 1 Distance traveled (mi) 29 Percent of total distance traveled (%) 6% Average Trip Distance (mi) 28.7 Average Driving Speed (mph)

457

MonthlyReport  

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

505 505 Number of trips 601 Distance traveled (mi) 245 Percent of total distance traveled (%) 62% Average Trip Distance (mi) 0.4 Average Driving Speed (mph) 5.4 Average Stops per mile 34.8 Percent of Regen Braking Energy Recovery (%) 15% City Trips ( < 5 stops/mile & <37 mph avg) DC electrical energy consumption (DC Wh/mi) 373 Number of trips 35 Distance traveled (mi) 124 Percent of total distance traveled (%) 31% Average Trip Distance (mi) 3.5 Average Driving Speed (mph) 23.0 Average Stops per mile 3.7 Percent of Regen Braking Energy Recovery (%) 13% Highway Trips ( 37 mph avg) DC electrical energy consumption (DC Wh/mi) 319 Number of trips 3 Distance traveled (mi) 25 Percent of total distance traveled (%) 6% Average Trip Distance (mi) 8.5 Average Driving Speed (mph)

458

MonthlyReport  

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

613 613 Number of trips 89 Distance traveled (mi) 9 Percent of total distance traveled (%) 30% Average Trip Distance (mi) 0.1 Average Driving Speed (mph) 7.0 Average Stops per mile 44.5 Percent of Regen Braking Energy Recovery (%) 9% City Trips ( < 5 stops/mile & <37 mph avg) DC electrical energy consumption (DC Wh/mi) 487 Number of trips 8 Distance traveled (mi) 5 Percent of total distance traveled (%) 16% Average Trip Distance (mi) 0.6 Average Driving Speed (mph) 25.0 Average Stops per mile 3.8 Percent of Regen Braking Energy Recovery (%) 6% Highway Trips ( 37 mph avg) DC electrical energy consumption (DC Wh/mi) 487 Number of trips 7 Distance traveled (mi) 16 Percent of total distance traveled (%) 54% Average Trip Distance (mi) 2.3 Average Driving Speed (mph)

459

ANALYSIS OF CONTROL SYSTEMS FOR VEHICLE HYBRID POWERTRAINS  

E-Print Network (OSTI)

Abstract. Ecological and socioeconomic factors determine high interest in the development of pollution-free vehicles. At present use of electro-vehicles is suppressed by a number of technological factors. Vehicles with alternative powertrains are transitional stage between development of pollution-free vehicles and vehicles with conventional internal combustion engine. According to these aspects the investigation on conventional hybrid drives and their control systems is carried out in the article. The equations that allow evaluating effectiveness of regenerative braking for different variants of hybrid drive are given. The AMESim software is used as the modeling environment, in which models of hybrid vehicles are developed and the results of virtual simulation are analyzed. Also a number of recommendations for increasing of regenerative braking effectiveness are given.

Siarhei Kliauzovich

2007-01-01T23:59:59.000Z

460

Passive magnetic bearings for vehicular electromechanical batteries  

DOE Green Energy (OSTI)

This report describes the design of a passive magnetic bearing system to be used in electromechanical batteries (flywheel energy storage modules) suitable for vehicular use. One or two such EMB modules might, for example, be employed in a hybrid-electric automobile, providing efficient means for power peaking, i.e., for handling acceleration and regenerative braking power demands at high power levels. The bearing design described herein will be based on a ''dual-mode'' operating regime.

Post, R

1996-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Optimal energy management and recovery for FEV  

Science Conference Proceedings (OSTI)

This paper briefly describes the latest achievements of a new functional vehicle system to overcome the range anxiety problem of Fully Electric Vehicles (FEV). This is primarily achieved by integrated control and operation strategies to optimize the ... Keywords: FEV range anxiety, GPS, all electric range, car-to-car, car-to-infrastructure, control, energy manager, environmental sensors, hybrid electric vehicles (HEV), network architecture, operation strategies, radar, regenerative vacuum free braking, safety, satellite navigation, vehicle simulation, video

Kosmas Knoedler; Jochen Steinmann; Sylvain Laversanne; Stephen Jones; Arno Huss; Emre Kural; David Sanchez; Oliver Bringmann; Jochen Zimmermann

2012-03-01T23:59:59.000Z

462

Analysis of a diesel-electric hybrid urban bus system  

DOE Green Energy (OSTI)

A hybrid bus powered by a diesel engine and a battery pack has been analyzed over an idealized bus-driving cycle in Chicago. Three hybrid configurations, two parallel and one series, have been evaluated. The results indicate that the fuel economy of a hybrid bus, taking into account the regenerative braking, is comparable with that of a conventional diesel bus. Life-cycle costs are slightly higher because of the added weight and cost of the battery.

Marr, W.W.; Sekar, R.R. [Argonne National Lab., IL (United States); Ahlheim, M.C. [Regional Transportation Authority, Chicago, IL (United States)

1993-08-01T23:59:59.000Z

463

Design of an AUV recharging system; Design of an Autonomous Underwater Vehicle recharging system.  

E-Print Network (OSTI)

??The Odyssey AUV Series uses a Lithium-ion Polymer battery which is able to supply the necessary power for a limited mission time. The current method… (more)

Miller, Bryan D. (Bryan David)

2005-01-01T23:59:59.000Z

464

Performance testing of the AC propulsion ELX electric vehicle  

DOE Green Energy (OSTI)

Performance testing of the AC Propulsion ELX electric vehicle is described. Test data are presented and analyzed. The ELX vehicle is the first of a series of electric vehicles of interest to the California Air Resources Board. The test series is being conducted under a Cooperative Research and Development Agreement (CRADA) between the US Department of energy and the California Air Resources Board. The tests which were conducted showed that the AC Propulsion ELX electric vehicle has exceptional acceleration and range performance. when the vehicle`s battery was fully charged, the vehicle can accelerate from 0 to 96 km/h in about 10 seconds. Energy consumption and range tests using consecutive FUDS and HWFET Driving cycles (the all-electric cycle) indicate that the energy economy of the AC Propulsion ELX electric vehicle with regenerative braking is 97 W{center_dot}h/km, with a range of 153 km (95 miles). Computer simulations performed using the SIMPLEV Program indicate that the vehicle would have a range of 327 km (203 miles) on the all-electric cycle if the lead acid batteries were replaced with NiMH batteries having an energy density of 67 W{center_dot}h/kg. Comparisons of FUDS test data with and without regenerative braking indicated that regenerative braking reduced the energy consumption of the ELX vehicle by approximately 25%.

Kramer, W.E.; MacDowall, R.D.; Burke, A.F.

1994-06-01T23:59:59.000Z

465

High voltage bus and auxiliary heater control system for an electric or hybrid vehicle  

DOE Green Energy (OSTI)

A control system for an electric or hybrid electric vehicle includes a vehicle system controller and a control circuit having an electric immersion heater. The heater is electrically connected to the vehicle's high voltage bus and is thermally coupled to a coolant loop containing a heater core for the vehicle's climate control system. The system controller responds to cabin heat requests from the climate control system by generating a pulse width modulated signal that is used by the control circuit to operate the heater at a duty cycle appropriate for the amount of cabin heating requested. The control system also uses the heater to dissipate excess energy produced by an auxiliary power unit and to provide electric braking when regenerative braking is not desirable and manual braking is not necessary. The control system further utilizes the heater to provide a safe discharge of a bank of energy storage capacitors following disconnection of the battery or one of the high voltage connectors used to transmit high voltage operating power to the various vehicle systems. The control circuit includes a high voltage clamping circuit that monitors the voltage on the bus and operates the heater to clamp down the bus voltage when it exceeds a pre-selected maximum voltage. The control system can also be used to phase in operation of the heater when the bus voltage exceeds a lower threshold voltage and can be used to phase out the auxiliary power unit charging and regenerative braking when the battery becomes fully charged.

Murty, Balarama Vempaty (West Bloomfield, MI)

2000-01-01T23:59:59.000Z

466

Development of Supported Bifunctional Electrocatalysts for Unitized Regenerative Fuel Cells  

E-Print Network (OSTI)

Industrial Partnerships Program to further the development of their wind turbine. #12;Success Stories of Past drug, PTH-CBD, is being prepared for licensing to a pharmaceutical company after the Phase I trials the provisional patent for the technology, process and delivery of LOCUS. This is a single- chambered microbial

467

The Multiple Uses of Carbon Nanotubes in Regenerative Medicine  

Science Conference Proceedings (OSTI)

This talk will summarize the state-of-the-art knowledge on the use of carbon ... Improving the Resistance of Ceramic Surfaces to Biofilm Formation ... Degradation on Surface of Yttria-Stabilized Zirconia by Electric Polarization ... Plasma Surface Modification of Electrospun Fibers for Adhesion-Based Cancer Cell Sorting.

468

Acoustic-velocity measurements in materials using a regenerative method  

DOE Patents (OSTI)

Acoustic energy is propatated through earth material between an electro-acoustic generator and a receiver which converts the received acoustic energy into electrical signals. A closed loop is formed by a variable gain amplifier system connected between the receiver and the generator. The gain of the amplifier system is increased until sustained oscillations are produced in the closed loop. The frequency of the oscillations is measured as an indication of the acoustic propagation velocity through the earth material. The amplifier gain is measured as an indication of the acoustic attenuation through the earth materials. The method is also applicable to the non-destructive testing of structural materials, such as steel, aluminum and concrete.

Laine, E.F.

1982-09-30T23:59:59.000Z

469

Energy-efficient regenerative liquid desiccant drying process  

DOE Patents (OSTI)

This invention relates to the use of desiccants in conjunction with an open oop drying cycle and a closed loop drying cycle to reclaim the energy expended in vaporizing moisture in harvested crops. In the closed loop cycle, the drying air is brought into contact with a desiccant after it exits the crop drying bin. Water vapor in the moist air is absorbed by the desiccant, thus reducing the relative humidity of the air. The air is then heated by the used desiccant and returned to the crop bin. During the open loop drying cycle the used desiccant is heated (either fossil or solar energy heat sources may be used) and regenerated at high temperature, driving water vapor from the desiccant. This water vapor is condensed and used to preheat the dilute (wet) desiccant before heat is added from the external source (fossil or solar). The latent heat of vaporization of the moisture removed from the desiccant is reclaimed in this manner. The sensible heat of the regenerated desiccant is utilized in the open loop drying cycle. Also, closed cycle operation implies that no net energy is expended in heating drying air.

Ko, Suk M. (Huntsville, AL); Grodzka, Philomena G. (Huntsville, AL); McCormick, Paul O. (Athens, AL)

1980-01-01T23:59:59.000Z

470

Acoustic velocity measurements in materials using a regenerative method  

DOE Patents (OSTI)

Acoustic energy is propagated through earth material between an electro-acoustic generator and a receiver which converts the received acoustic energy into electrical signals. A closed loop is formed by a variable gain amplifier system connected between the receiver and the generator. The gain of the amplifier system is increased until sustained oscillations are produced in the closed loop. The frequency of the oscillations is measured as an indication of the acoustic propagation velocity through the earth material. The amplifier gain is measured as an indication of the acoustic attenuation through the earth materials. The method is also applicable to the non-destructive testing of structural materials, such as steel, aluminum and concrete.

Laine, Edwin F. (Alamo, CA)

1986-01-01T23:59:59.000Z

471

Photoelectrochemistry of some aluminum phthalocyanines in regenerative solar cells  

Science Conference Proceedings (OSTI)

Chloroaluminum phthalocyanine (ClAlPc) films sublimed with a high growth rate on SnO/sub 2/ can be made to undergo two transformations when the films are in contact with an acidic (HCl) aqueous solution: transformation I is obtained if the solution contains I/sub 3//I and transformation H occurs when there is no redox couple in the solution. The short-circuit photocurrents produced by these two transformations are different. The highest J/sub sc/(1.1 mA cm/sup -2/), under 100 mW cm/sup -2/ white light illumination, was measured for transformation I. An investigation of the differences between the initial and the highly photoactive film shows that transformation I induces the growth of an 840 nm band in both absorption and action spectra. Moreover, IR spectroscopy suggests that there is a possible protonation of a peripheral nitrogen of the phthalocyanine macrocycle.

Guay, D.; Dodelet, J.P. (INRS-Energie, Varennes, Quebec (CA)); Cote, R.; Langford, C.H. (Chemistry Dept., Concordia Univ., Montreal, Quebec (CA)); Gravel, D. (Dept. de chimie, Univ. de Montreal, Montreal, Quebec (CA))

1989-08-01T23:59:59.000Z

472

A Novel Low Noise Regenerative Divide-by-Four Circuit  

Science Conference Proceedings (OSTI)

... of a chip inductor of 10 nH in series with a chip capacitor of about 40 ... MHz quartz oscillator that was multiplied up to 400 MHz using ultra-low- noise ...

2002-10-15T23:59:59.000Z

473

Low-pressure-ratio regenerative exhaust-heated gas turbine  

SciTech Connect

A design study of coal-burning gas-turbine engines using the exhaust-heated cycle and state-of-the-art components has been completed. In addition, some initial experiments on a type of rotary ceramic-matrix regenerator that would be used to transfer heat from the products of coal combustion in the hot turbine exhaust to the cool compressed air have been conducted. Highly favorable results have been obtained on all aspects on which definite conclusions could be drawn.

Tampe, L.A.; Frenkel, R.G.; Kowalick, D.J.; Nahatis, H.M.; Silverstein, S.M.; Wilson, D.G.

1991-01-01T23:59:59.000Z

474

Method for controlling a motor vehicle powertrain  

DOE Patents (OSTI)

A multiple forward speed automatic transmission produces its lowest forward speed ratio when a hydraulic clutch and hydraulic brake are disengaged and a one-way clutch connects a ring gear to the transmission casing. Second forward speed ratio results when the hydraulic clutch is engaged to connect the ring gear to the planetary carrier of a second gear set. Reverse drive and regenerative operation result when an hydraulic brake fixes the planetary and the direction of power flow is reversed. Various sensors produce signals representing the position of the gear selector lever operated manually by the vehicle operator, the speed of the power source, the state of the ignition key, and the rate of release of an accelerator pedal. A control algorithm produces input data representing a commanded upshift, a commanded downshift and a torque command and various constant torque signals. A microprocessor processes the input and produces a response to them in accordance with the execution of a control algorithm. Output or response signals cause selective engagement and disengagement of the clutch and brake to produce the forward drive, reverse and regenerative operation of the transmission.

Burba, Joseph C. (Ypsilanti, MI); Landman, Ronald G. (Ypsilanti, MI); Patil, Prabhakar B. (Detroit, MI); Reitz, Graydon A. (Farmington Hills, MI)

1990-01-01T23:59:59.000Z

475

Method for controlling a motor vehicle powertrain  

DOE Patents (OSTI)

A multiple forward speed automatic transmission produces its lowest forward speed ratio when a hydraulic clutch and hydraulic brake are disengaged and a one-way clutch connects a ring gear to the transmission casing. Second forward speed ratio results when the hydraulic clutch is engaged to connect the ring gear to the planetary carrier of a second gear set. Reverse drive and regenerative operation result when an hydraulic brake fixes the planetary and the direction of power flow is reversed. Various sensors produce signals representing the position of the gear selector lever operated manually by the vehicle operator, the speed of the power source, the state of the ignition key, and the rate of release of an accelerator pedal. A control algorithm produces input data representing a commanded upshift, a commanded downshift and a torque command and various constant torque signals. A microprocessor processes the input and produces a response to them in accordance with the execution of a control algorithm. Output or response signals cause selective engagement and disengagement of the clutch and brake to produce the forward drive, reverse and regenerative operation of the transmission. 7 figs.

Burba, J.C.; Landman, R.G.; Patil, P.B.; Reitz, G.A.

1990-05-22T23:59:59.000Z

476

Commercialization of Solid-State, Rechargeable Thin-Film Micro ...  

Integration Capable Human Hair ... Microelectronic systems continue to shrink ... infinite power solutions; industry growth forum; energy storage; ...

477

FREE STANDING NANOSTRUCTURED ANODES FOR LI-ION RECHARGEABLE BATTERIES  

DOE Green Energy (OSTI)

The free standing nanorodes of aluminum and cobalt oxides were grown on electrode and tested as the anodes directly in the half-cell. The average diameter and length of the nanorods are 80 nm and 200 nm respectively. The aligned nanorods demonstrated high initial capacity from 1200-1400 mAh/g at rate of 0.5C. The gradually decrease of initial capacity was observed. The preliminary characterization shows that the changes of the crystalline structure and morphology during cycling may be responsible for the capacity decay.

Au, M.

2009-07-20T23:59:59.000Z

478

John B. Goodenough, Cathode Materials, and Rechargeable Lithium...  

Office of Scientific and Technical Information (OSTI)

Batteries for Advanced Transportation Technologies (BATT) Program at Lawrence Berkeley National Laboratory (LBNL).4 1 Edited excerpt from Secretary Chu Names 2009 Enrico Fermi...

479

The Facts Influencing Rechargeability of Lithium/Air Batteries  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2012 TMS Annual Meeting & Exhibition. Symposium , Energy Nanomaterials. Presentation Title, The Facts Influencing ...

480

FLEET SERVICES RECHARGE RATE COMPARISON FISCAL YEAR 2011-2012  

E-Print Network (OSTI)

.88 $3.58 $3.87 CNG Average Cost (pass through) $2.10 $2.52 $2.52 Propane Average Cost (pass through) $1

California at Santa Cruz, University of

Note: This page contains sample records for the topic "regenerative braking recharges" 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

Functional Materials for Rechargeable Li Battery and Hydrogen Storage.  

E-Print Network (OSTI)

??The exploration of functional materials to store renewable, clean, and efficient energies for electric vehicles (EVs) has become one of the most popular topics in… (more)

He, Guang

2013-01-01T23:59:59.000Z

482

Office of Technology Transfer Composite Electrodes for Rechargeable Lithium-  

E-Print Network (OSTI)

of this technology. Page 6 Lithium-ion Batteries Could Hold the Key to 100-MPG Hybrids Lithium-ion batteries are a promising alternative to the nickel metal hydride batteries used in current-generation HEVs. Lithium-ion batteries pack more power and energy into a smaller battery package. But there's work to do before lithium-ion

Kemner, Ken

483

Anode Materials for Rechargeable Li-Ion Batteries  

DOE Green Energy (OSTI)

This is the annual progress report for the Grant DE-FG03-00ER15035. This research is on materials for anodes and cathodes in electrochemical cells. The work is a mix of electrochemical measurements and analysis of the materials by transmission electron microscopy and x-ray diffractometry. Our materials studies on electrode materials divide into electronic studies of the valence at and around Li atoms, and the crystal structures of these materials. We are addressing the basic questions of how these change with Li concentration, and what long-term changes take place during charge/discharge cycling of the materials.

B. Fultz

2001-01-12T23:59:59.000Z

484

Microstructural Modeling and Design of Rechargeable Lithium-Ion Batteries  

E-Print Network (OSTI)

. The cathode architectures and materials have a large influence on the performance of lithium-ion batteries battery design. The cathode of a lithium-ion battery is a large contributor to its overall performance power density and energy density of lithium-ion batteries. 1.3 Basic Ideal Cathode Structure

García, R. Edwin

485

Se-based Positive Electrode Material for Rechargeable Battery ...  

Science Conference Proceedings (OSTI)

This series of matrials could be used in both Li and Na battery system. It is found that Se-containing materials showed better electrochemical performace in terms

486

Automated Battery Swap and Recharge to Enable Persistent UAV Missions  

E-Print Network (OSTI)

This paper introduces a hardware platform for automated battery changing and charging for multiple UAV agents. The automated station holds a bu er of 8 batteries in a novel dual-drum structure that enables a "hot" battery ...

Toksoz, Tuna

487

Electric Vehicles: Performances, Life Cycle Costs, Emissions, and Recharging Requirements  

E-Print Network (OSTI)

Table3 to the incre- no oil costs, and that Na/S batteries,costs, of vehicle’s Oil costs, percent ofgasoline vehicle’stires are (M&R) costs (we exclude fires and oil) than ICEVs,

DeLuchi, Mark A.; Wang, Quanlu; Sperling, Daniel

1989-01-01T23:59:59.000Z

488

Organic Electro-Active Polymers For Rechargeable Batteries  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2012. Symposium, Energy Storage: Materials, Systems and Applications. Presentation Title ...

489

Aqueous Lithium Ion Batteries Can Be Recharged Thousands of ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, Energy Storage III: Materials, Systems and Applications Symposium.

490

Preparation of redox polymer cathodes for thin film rechargeable batteries  

DOE Patents (OSTI)

The present invention relates to the manufacture of thin film solid state electrochemical devices using composite cathodes comprising a redox polymer capable of undergoing oxidation and reduction, a polymer solid electrolyte and conducting carbon. The polymeric cathode material is formed as a composite of radiation crosslinked polymer electrolytes and radiation crosslinked redox polymers based on polysiloxane backbones with attached organosulfur side groups capable of forming sulfur-sulfur bonds during electrochemical oxidation.

Skotheim, T.A.; Lee, H.S.; Okamoto, Yoshiyuki.

1994-11-08T23:59:59.000Z

491

Polymer electrolytes for a rechargeable li-Ion battery  

SciTech Connect

Lithium-ion polymer electrolyte battery technology is attractive for many consumer and military applications. A Li{sub x}C/Li{sub y}Mn{sub 2}O{sub 4} battery system incorporating a polymer electrolyte separator base on novel Li-imide salts is being developed under sponsorship of US Army Research Laboratory (Fort Monmouth NJ). This paper reports on work currently in progress on synthesis of Li-imide salts, polymer electrolyte films incorporating these salts, and development of electrodes and cells. A number of Li salts have been synthesized and characterized. These salts appear to have good voltaic stability. PVDF polymer gel electrolytes based on these salts have exhibited conductivities in the range 10{sup -4} to 10{sub -3} S/cm.

Argade, S.D.; Saraswat, A.K.; Rao, B.M.L. [Technochem Co., Greensboro, NC (United States); Lee, H.S.; Xiang, C.L.; McBreen, J. [Brookhaven National Lab., Upton, NY (United States)

1996-10-01T23:59:59.000Z

492

Impedance studies for separators in rechargeable lithium batteries  

Science Conference Proceedings (OSTI)

Melting of separators, causing closure of separator pores, will result in a strong reduction in current flow. When this process is initiated at the appropriate time it can prevent thermal runaway of lithium batteries during electrical abuse. For this reason, a separator can act as an internal safety device. The effective depends on a number of separator parameters such as melting temperature, rate of pore fusion, and dimensional stability temperature. Measurement of the electrical impedance of electrolyte-filled separators and separator combinations in the temperature range from room temperature to 200 C can be used to determine these parameters.

Laman, F.C.; Gee, M.A.; Denovan, J. (Advanced Energy Technologies Inc., Burnaby, British Columbia (Canada))

1993-04-01T23:59:59.000Z

493

Rechargeable Nano-Batteries: Lessons from In-Situ Electron ...  

Science Conference Proceedings (OSTI)

... considerable attention in energy storage devices due to the enhanced electrochemical reactions at ... Anode Materials for Reprocessing of Spent Nuclear Fuel.

494

Electric Vehicles: Performances, Life Cycle Costs, Emissions, and Recharging Requirements  

E-Print Network (OSTI)

P. Davis I. (1988) R. ETX-II propulsion system industry..,sulfur batteryfor the ETX-II propuLsion system. Proca. ,9thsulphur battery, in the ETX-II test vehicle. The ETX-II test

DeLuchi, Mark A.; Wang, Quanlu; Sperling, Daniel

1989-01-01T23:59:59.000Z

495

Electric Vehicles: Performances, Life Cycle Costs, Emissions, and Recharging Requirements  

E-Print Network (OSTI)

National Engineer- an electric car practical with existingN. (1987) The BMW electric car--current devel- for electricinfrastructure for electric cars. TRRL Report LR812.

DeLuchi, Mark A.; Wang, Quanlu; Sperling, Daniel

1989-01-01T23:59:59.000Z

496

Recharge Oscillator Mechanisms in Two Types of ENSO  

Science Conference Proceedings (OSTI)

El Niño and the Southern Oscillation (ENSO) tend to behave arguably as two different “types” or “flavors” in recent decades. One is the canonical cold-tongue (CT) -type ENSO with major sea surface temperature anomalies (SSTA) positioned over the ...

Hong-Li Ren; Fei-Fei Jin

497

Recharging the facade : designing and constructing novel BIPV assemblies  

E-Print Network (OSTI)

Building Integrated Photovoltaics (BIPV) have been the subject of research and design applications for several decades. While some large-scale applications have been realized, prohibitively high costs and multiple technical ...

Keller, Alexander Freimark

2013-01-01T23:59:59.000Z

498

Electric Vehicles: Performances, Life Cycle Costs, Emissions, and Recharging Requirements  

E-Print Network (OSTI)

Sealed lead-acid electric and vehicle battery development.A. (1987a) ture for electric vehicles. In Resources ElectricInternational Conference. Electric Vehicle De- Universityof

DeLuchi, Mark A.; Wang, Quanlu; Sperling, Daniel

1989-01-01T23:59:59.000Z

499

Recharge Oscillator Mechanisms in Two Types of ENSO  

Science Conference Proceedings (OSTI)

The El Niño–Southern Oscillation (ENSO) tends to behave arguably as two different “types” or “flavors” in recent decades. One is the canonical cold-tongue-type ENSO with major sea surface temperature anomalies (SSTA) positioned over the eastern ...

Hong-Li Ren; Fei-Fei Jin

2013-09-01T23:59:59.000Z

500

FLEET SERVICES RECHARGE RATE COMPARISON FISCAL YEAR 2012-2013  

E-Print Network (OSTI)

richiesta di prenotazione per il regolamento) SUPPLEMENTI OBBLIGATORI Tasse aeroportuali/fuel surcharge) SUPPLEMENTI OBBLIGATORI Tasse aeroportuali/fuel surcharge Spese apertura pratica 130 Assicurazione medica) SUPPLEMENTI OBBLIGATORI Tasse aeroportuali/fuel surcharge Spese apertura pratica 130 Assicurazione medica

Renau, Jose