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Note: This page contains sample records for the topic "li-ion steady state" 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

Electrolyte Stability Determines Scaling Limits for Solid-State 3D Li Ion Batteries  

E-Print Network [OSTI]

Electrolyte Stability Determines Scaling Limits for Solid-State 3D Li Ion Batteries Dmitry Ruzmetov, all-solid-state Li ion batteries (LIBs) with high specific capacity and small footprint are highly to their high-energy density, Li ion batteries (LIBs) are attractive for these applications, and all-solid-state

Rubloff, Gary W.

2

NANOMATERIALS FOR HIGH CAPACITY LI-ION BATTERIES Taylor Grieve, Iowa State University, SURF 2009 Fellow  

E-Print Network [OSTI]

NANOMATERIALS FOR HIGH CAPACITY LI-ION BATTERIES Taylor Grieve, Iowa State University, SURF 2009 energy storage devices continues to grow. Lithium-ion (Li-ion) secondary, or renewable, batteries are of interest due to their high energy and power characteristics. Performance enhancements of Li- ion batteries

Li, Mo

3

Robustness analysis of State-of-Charge estimation methods for two types of Li-ion batteries  

E-Print Network [OSTI]

Robustness analysis of State-of-Charge estimation methods for two types of Li-ion batteries estimation Li-ion battery Robustness analysis a b s t r a c t Battery State of Charge (SOC) estimation. This paper analyzes the robustness of SOC estimation algorithms for two types of Li-ion batteries under

Peng, Huei

4

Black brane steady states  

E-Print Network [OSTI]

We follow the evolution of an asymptotically AdS black brane with a fixed temperature gradient at spatial infinity until a steady state is formed. The resulting energy density and energy flux of the steady state in the boundary theory are compared to a conjecture on the behavior of steady states in conformal field theories. Very good agreement is found.

Amado, Irene

2015-01-01T23:59:59.000Z

5

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

SciTech Connect (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

6

Reinvestigation on the state-of-the-art nonaqueous carbonate electrolytes for 5 V Li-ion battery applications  

SciTech Connect (OSTI)

The charging voltage limits of mixed carbonate solvents for Li-ion batteries have been systematically investigated from 4.9 to 5.3 V in half cells using Cr-doped spinel cathode material LiNi0.45Cr0.05Mn1.5O4. We found that the stability of conventional carbonate electrolytes is strongly related to the stability and properties of the cathode materials at both lithiated and de-lithiated states. It is the first time to report that the conventional electrolytes based on mixtures of ethylene carbonate (EC) and linear carbonate (dimethyl carbonate - DMC, ethyl methyl carbonate - EMC, and diethyl carbonate - DEC) have shown very similar long-term cycling performance when cycled up to 5.2 V on LiNi0.45Cr0.05Mn1.5O4. The discharge capacity increases with the charge cutoff voltage and reaches the highest discharge capacity at 5.2 V. The capacity retention is about 87% after 500 cycles at 1C rate for all three carbonate mixtures when cycled between 3.0 V and 5.2V. The first-cycle efficiency has a maximum value at 5.1 V, with an average from 83% to 85% at C/10 rate. When cycled to 5.3 V, EC-DMC still shows good cycling performance but EC-EMC and EC-DEC show faster capacity fading. EC-DMC and EC-EMC have much better rate capability than EC-DEC. In addition, the first-cycle irreversible capacity loss increases with the cutoff voltage and the 'inactive' conductive carbon has also been found to be partly associated with the low first-cycle Coulombic efficiency at high voltages due to electrolyte decomposition and probably the PF6- anion irreversible intercalation.

Xu, Wu; Chen, Xilin; Ding, Fei; Xiao, Jie; Wang, Deyu; Pan, Anqiang; Zheng, Jianming; Li, Xiaohong S.; Padmaperuma, Asanga B.; Zhang, Jiguang

2012-09-01T23:59:59.000Z

7

Beyond Conventional Cathode Materials for Li-ion Batteries and Na-ion Batteries Nickel fluoride conversion materials and P2 type Na-ion intercalation cathodes /  

E-Print Network [OSTI]

active material for Li-ion battery, Fe2OF4. ElectrochemistryIron Fluoride, in a Li Ion Battery: A Solid-State NMR, X-raymaterials for Li-ion battery……………………………133 8.2. P2 type

Lee, Dae Hoe

2013-01-01T23:59:59.000Z

8

Improved Positive Electrode Materials for Li-ion Batteries  

E-Print Network [OSTI]

of the assembled Li-ion battery, such as the operating1-4: Schematic of a Li-ion battery. Li + ions are shuttledprocessing of active Li-ion battery materials. Various

Conry, Thomas Edward

2012-01-01T23:59:59.000Z

9

Beyond Conventional Cathode Materials for Li-ion Batteries and Na-ion Batteries Nickel fluoride conversion materials and P2 type Na-ion intercalation cathodes /  

E-Print Network [OSTI]

in a Li Ion Battery: A Solid-State NMR, X-ray Diffraction,in a Li Ion Battery: A Solid-State NMR, X-ray Diffraction,

Lee, Dae Hoe

2013-01-01T23:59:59.000Z

10

Characterization of Materials for Li-ion Batteries: Success Stories...  

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

Materials for Li-ion Batteries: Success Stories from the High Temperature Materials Laboratory (HTML) User Program Characterization of Materials for Li-ion Batteries: Success...

11

Characterization of Li-ion Batteries using Neutron Diffraction...  

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

Li-ion Batteries using Neutron Diffraction and Infrared Imaging Techniques Characterization of Li-ion Batteries using Neutron Diffraction and Infrared Imaging Techniques 2011 DOE...

12

Steady state compact toroidal plasma production  

DOE Patents [OSTI]

This invention relates to the confinement of field reversed plasma rings and, more particularly, to the steady state maintainance of field reversed plasma rings produced by coaxial plasma guns.

Turner, W.C.

1983-05-17T23:59:59.000Z

13

Negative Electrodes for Li-Ion Batteries  

SciTech Connect (OSTI)

Graphitized carbons have played a key role in the successful commercialization of Li-ion batteries. The physicochemical properties of carbon cover a wide range; therefore identifying the optimum active electrode material can be time consuming. The significant physical properties of negative electrodes for Li-ion batteries are summarized, and the relationship of these properties to their electrochemical performance in nonaqueous electrolytes, are discussed in this paper.

Kinoshita, Kim; Zaghib, Karim

2001-10-01T23:59:59.000Z

14

Steady-state inductive spheromak operation  

DOE Patents [OSTI]

The inductively formed spheromak plasma can be maintained in a highly stable and controlled fashion. Steady-state operation is obtained by forming the plasma in the linked mode, then oscillating the poloidal and toroidal fields such that they have different phases. Preferably, the poloidal and magnetic fields are 90.degree. out of phase.

Janos, Alan C. (E. Windsor, NJ); Jardin, Stephen C. (Princeton, NJ); Yamada, Masaaki (Lawrenceville, NJ)

1987-01-01T23:59:59.000Z

15

Steady-state spheromak reactor studies  

SciTech Connect (OSTI)

After summarizing the essential elements of a gun-sustained spheromak, the potential for a steady-state is explored by means of a comprehensive physics/engineering/costing model. A range of cost-optimized reactor design points is presented, and the sensitivity of cost to key physics, engineering, and operational variables is reported.

Krakowski, R.A.; Hagenson, R.L.

1985-01-01T23:59:59.000Z

16

Steady-state inductive spheromak operation  

DOE Patents [OSTI]

The inductively formed spheromak configuration (S-1) can be maintained in a highly stable and controlled fashion. The method described eliminates the restriction to pulsed spheromak plasmas or the use of electrodes for steady-state operation, and, therefore, is a reactor-relevant formation and sustainment method.

Janos, A.C.; Jardin, S.C.; Yamada, M.

1985-02-20T23:59:59.000Z

17

Steady state compact toroidal plasma production  

DOE Patents [OSTI]

Apparatus and method for maintaining steady state compact toroidal plasmas. A compact toroidal plasma is formed by a magnetized coaxial plasma gun and held in close proximity to the gun electrodes by applied magnetic fields or magnetic fields produced by image currents in conducting walls. Voltage supply means maintains a constant potential across the electrodes producing an increasing magnetic helicity which drives the plasma away from a minimum energy state. The plasma globally relaxes to a new minimum energy state, conserving helicity according to Taylor's relaxation hypothesis, and injecting net helicity into the core of the compact toroidal plasma. Controlling the voltage so as to inject net helicity at a predetermined rate based on dissipative processes maintains or increases the compact toroidal plasma in a time averaged steady state mode.

Turner, William C. (Livermore, CA)

1986-01-01T23:59:59.000Z

18

Lithium Source For High Performance Li-ion Cells  

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

New cathode and anode electrodes are required to improve the energy density of Li-ion cells for transportation technologies. The cost of Li-ion systems for transportation...

19

Thin, Flexible Secondary Li-Ion Paper Liangbing Hu,  

E-Print Network [OSTI]

Thin, Flexible Secondary Li-Ion Paper Batteries Liangbing Hu, Hui Wu, Fabio La Mantia, Yuan Yang, secondary Li-ion batteries are key components in por- table electronics due to their high power and energy integrated all of the components of a Li-ion battery into a single sheet of paper with a simple lamination

Cui, Yi

20

Block Copolymer Solid Battery Electrolyte with High Li-Ion Transference Number  

E-Print Network [OSTI]

Block Copolymer Solid Battery Electrolyte with High Li-Ion Transference Number Ayan Ghosh number TLi+ value of 0.9 at room temperature 21­23°C . The solid-state flexible, translucent polymer of withstanding such high voltage conditions. Unlike traditional liquid electrolytes, solid-state polymer electro

Rubloff, Gary W.

Note: This page contains sample records for the topic "li-ion steady state" 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

High Voltage Electrolytes for Li-ion Batteries  

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

or otherwise restricted information High Voltage Electrolytes for Li-ion Batteries Vehicle Technologies Program 2 Overview * Start: Sep 2008 * End: Sep 2011 * 20 %...

22

Characterization of Materials for Li-ion Batteries: Success Stories...  

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

Materials for Li-ion Batteries: Success Stories from the High Temperature Materials Laboratory (HTML) User Program DOE 2010 Vehicle Technologies Annual Merit Review and Peer...

23

Characterization of Li-ion Batteries using Neutron Diffraction...  

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

Li-ion batteries Using Neutron Diffraction and Infrared Imaging Techniques: Success Stories from the High Temperature Materials Laboratory (HTML) User Program DOE 2011 Vehicle...

24

Investigation of critical parameters in Li-ion battery electrodes...  

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

of critical parameters in Li-ion battery electrodes 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

25

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-ion Battery Cathode  

SciTech Connect (OSTI)

Electrochemically active LiMnPO4 nanoplates have been synthesized via novel single step solid state reaction in molten hydrocarbon. The LiMnPO4 prepared show unique porous nanoplate shape ~50nm in thickness with highly preferred crystallographic orientation. The reversible cycling of carbon coated LiMnPO4 show flat potential at 4.1 V vs. Li with specific capacity reaching up to 168mAh/g and excellent cycling performance using only galvanostatic charging / discharging mode.

Choi, Daiwon; Wang, Donghai; Bae, In-Tae; Xiao, Jie; Nie, Zimin; Wang, Wei; Viswanathan, Vilayanur V.; Lee, Yun Jung; Zhang, Jiguang; Graff, Gordon L.; Yang, Zhenguo; Liu, Jun

2010-08-11T23:59:59.000Z

26

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network [OSTI]

as cathode materials for Li-ion battery. Physica B-CondensedHigh Energy High Power Li-ion Battery Cathode Materials AHigh Energy High Power Li-ion Battery Cathode Materials A

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

27

Anodic polymerization of vinyl ethylene carbonate in Li-Ion battery electrolyte  

E-Print Network [OSTI]

Ethylene Carbonate in Li-Ion Battery Electrolyte Guoyingof a commercial Li-ion battery electrolyte containing 2 %are an important part of Li-ion battery technology yet their

Chen, Guoying; Zhuang, Guorong V.; Richardson, Thomas J.; Gao, Liu; Ross Jr., Philip N.

2005-01-01T23:59:59.000Z

28

Statistical Design of Experiment for Li-ion Cell Formation Parameters...  

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

Statistical Design of Experiment for Li-ion Cell Formation Parameters using Gen3 Electrode Materials: Final Summary Statistical Design of Experiment for Li-ion Cell Formation...

29

A Note on Equations for Steady-State Optimal Landscapes  

SciTech Connect (OSTI)

Based on the optimality principle (that the global energy expenditure rate is at its minimum for a given landscape under steady state conditions) and calculus of variations, we have derived a group of partial differential equations for describing steady-state optimal landscapes without explicitly distinguishing between hillslopes and channel networks. Other than building on the well-established Mining's equation, this work does not rely on any empirical relationships (such as those relating hydraulic parameters to local slopes). Using additional constraints, we also theoretically demonstrate that steady-state water depth is a power function of local slope, which is consistent with field data.

Liu, H.H.

2010-06-15T23:59:59.000Z

30

Steady-State Diffusion of Water through Soft-Contact Lens Materials  

E-Print Network [OSTI]

Fig. 2 Measured steady-state water fluxes as a function ofTM hydrogels. Measured steady-state water fluxes are largestthe measured steady- state water fluxes increase with rising

Fornasiero, Francesco; Krull, Florian; Radke, Clayton J.; Prausnitz, John M.

2005-01-01T23:59:59.000Z

31

Transport and Failure in Li-ion Batteries | Stanford Synchrotron...  

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

Li-ion Batteries Monday, February 13, 2012 - 1:30pm SSRL Conference Room 137-322 Stephen J. Harris, General Motors R&D While battery performance is well predicted by the...

32

Development of High Energy Cathode for Li-ion Batteries  

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

for Li-ion Batteries Ji-Guang Zhang and Jun Liu Pacific Northwest National Laboratory 2010 DOE Vehicle Technologies Program Review June 7-11, 2010 Project ID: ES056 This...

33

2010 DOE, Li-Ion Battery Cell Manufacturing  

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

otherwise restricted information" 2010 DOE, Li-Ion Battery Cell Manufacturing Kee Eun LG Chem Ltd.Compact Power Inc. Jun 8 th 2010 Project ID ARRAVT001 "This presentation does...

34

Development of High Capacity Anode for Li-ion Batteries  

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

stability of Si-based anode. 4 Milestones * Synthesize and characterize TiO 2 Graphene and SnO 2 Graphene nano-composite as anode for Li-ion batteries. - on going *...

35

Construction of a Li Ion Battery (LIB) Cathode Production Plant...  

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

Construction of a Li Ion Battery (LIB) Cathode Production Plant in Elyria, Ohio Project ID ARRAVT008 Joe DiCarlo BASF Corporation May 11, 2011 "This presentation does not contain...

36

Ideal MHD Stability of ITER Steady State Scenarios with ITBs  

SciTech Connect (OSTI)

One of ITER goals is to demonstrate feasibility of continuous operations using non-inductive current drive. Two main candidates have been identified for advanced operations: the long duration, high neutron fluency hybrid scenario and the steady state scenario, both operating at a plasma current lower than the reference ELMy scenario [1][2] to minimize the required current drive. The steady state scenario targets plasmas with current 7-10 MA in the flat-top, 50% of which will be provided by the self-generated, pressure-driven bootstrap current. It has been estimated that, in order to obtain a fusion gain Q > 5 at a current of 9 MA, it should be ?N > 2.5 and H > 1.5 [3]. This implies the presence of an Internal Transport Barrier (ITB). This work discusses how the stability of steady state scenarios with ITBs is affected by the external heating sources and by perturbations of the equilibrium profiles.

F.M. Poli, C.E. Kessel, S. Jardin, J. Manickam, M. Chance, J. Chen

2011-07-27T23:59:59.000Z

37

The Energy Budget of Steady State Photosynthesis  

SciTech Connect (OSTI)

Progress is reported in addressing these questions: Why do hcef mutants have increased CEF1? Is increased CEF1 caused by elevated expression or altered regulation of CEF1 components? Which metabolic pools can be regulators of CEF1? Do metabolites influence CEF1 directly or indirectly? Which CEF1 pathways are activated in high CEF1 mutants? Is PQR a proton pump? Is elevated CEF1 activated by state transitions?

Dr. David M. Kramer

2012-11-27T23:59:59.000Z

38

STEADY STATE LIQUID CRYSTAL THERMOGRAPHY AND HEAT TRANSFER MEASUREMENTS ON  

E-Print Network [OSTI]

Chapter V STEADY STATE LIQUID CRYSTAL THERMOGRAPHY AND HEAT TRANSFER MEASUREMENTS ON SURFACES Composite Heat Transfer Surface Liquid Crystal Image Processing Technique V . 4 Experimental Results and Discussion Test Conditions and Data Analysis Application to Endwall Heat Transfer Problem Further Application

Camci, Cengiz

39

Estimation of steady-state basic parameters of stars  

E-Print Network [OSTI]

From a minimum of total energy of celestial bodies, their basic parameters are obtained. The steady-state values of the mass, radius, and temperature of stars and white dwarfs, as well as masses of pulsars are calculated. The luminosity and giromagnetic ratio of celestial bodies are estimated. All the obtained values are in a satisfactory agreement with observation data.

B. V. Vasiliev

2000-03-30T23:59:59.000Z

40

EXTENDING THE DEFINITION OF ENTROPY TO NONEQUILIBRIUM STEADY STATES.  

E-Print Network [OSTI]

## of #. Our definition is based on energy exchanged, uses the microscopic dynamics of the system, and agreesEXTENDING THE DEFINITION OF ENTROPY TO NONEQUILIBRIUM STEADY STATES. by David Ruelle* Abstract. We forces # and maintained at fixed kinetic energy (Hoover­Evans isokinetic thermostat). We assume

Note: This page contains sample records for the topic "li-ion steady state" 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

Thermal Stability of LiPF6 Salt and Li-ion Battery Electrolytes Containing LiPF6  

E-Print Network [OSTI]

of LiPF 6 Salt and Li-ion Battery Electrolytes ContainingLiPF 6 in prototypical Li-ion battery solvents was studied6 and the prototypical Li- ion battery solvents EC, PC, DMC

Yang, Hui; Zhuang, Guorong V.; Ross Jr., Philip N.

2006-01-01T23:59:59.000Z

42

Identity of Passive Film Formed on Aluminum in Li-ion Battery Electrolytes with LiPF6  

E-Print Network [OSTI]

Film on Aluminum in Li-ion Battery Electrolytes with LiPFFormed on Aluminum in Li-ion Battery Electrolytes with LiPFbattery charging. From the prospective of maintaining a functioning cathode in Li-ion

Zhang, Xueyuan; Devine, T.M.

2008-01-01T23:59:59.000Z

43

Low-Cost Graphite and Olivine-Based Materials for Li-Ion Batteries...  

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

Low-Cost Graphite and Olivine-Based Materials for Li-Ion Batteries Low-Cost Graphite and Olivine-Based Materials for Li-Ion Batteries Presentation from the U.S. DOE Office of...

44

Development of Cell/Pack Level Models for Automotive Li-Ion Batteries...  

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

CellPack Level Models for Automotive Li-Ion Batteries with Experimental Validation Development of CellPack Level Models for Automotive Li-Ion Batteries with Experimental...

45

Advanced Li-Ion Polymer Battery Cell Manufacturing Plant in USA...  

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

Li-Ion Polymer Battery Cell Manufacturing Plant in USA Advanced Li-Ion Polymer Battery Cell Manufacturing Plant in USA 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

46

A Yolk-Shell Design for Stabilized and Scalable Li-Ion Battery...  

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

Yolk-Shell Design for Stabilized and Scalable Li-Ion Battery Alloy Anodes. A Yolk-Shell Design for Stabilized and Scalable Li-Ion Battery Alloy Anodes. Abstract: Silicon is...

47

Nanoscale LiFePO4 and Li4Ti5O12 for High Rate Li-ion Batteries  

E-Print Network [OSTI]

12 for High Rate Li-ion Batteries A. Jaiswal 1 , C. R. Hornenext generation of Li-ion batteries for consumer electronics

Jaiswal, A.

2010-01-01T23:59:59.000Z

48

Improvement of Thermal Stability of Li-Ion Batteries by Polymer Coating of LiMn2O4  

E-Print Network [OSTI]

thermal stability of the Li-ion battery. CONCLUSIONS CoatingPDDA. EC- AFM studies on Li-ion battery electrodes offered

Stroeve, Pieter; Vidu, Ruxandra

2004-01-01T23:59:59.000Z

49

Steady-state superradiance with alkaline earth atoms  

E-Print Network [OSTI]

Earth-alkaline-like atoms with ultra-narrow transitions open the door to a new regime of cavity quantum electrodynamics. That regime is characterized by a critical photon number that is many orders of magnitude smaller than what can be achieved in conventional systems. We show that it is possible to achieve superradiance in steady state with such systems. We discuss the basic underlying mechanisms as well as the key experimental requirements

D. Meiser; M. J. Holland

2009-12-03T23:59:59.000Z

50

Stochastic reconstruction and electrical transport studies of porous cathode of Li-ion batteries  

E-Print Network [OSTI]

of the Li-ion batteries through developing electrode materials [1e5], reducing size [6] and optimizing shape,13], as one of the main factors limiting Li-ion battery performance, has not been resolved. Fundamental the ulti- mate performance and stability. Theoretical work of Li-ion batteries has focused on macroscopic

Liu, Fuqiang

51

Studies on Capacity Fade of Spinel based Li-Ion Batteries  

E-Print Network [OSTI]

Studies on Capacity Fade of Spinel based Li-Ion Batteries by P. Ramadass , A. Durairajan, Bala S To characterize the capacity fade phenomena of Li- ion batteries. To decrease the capacity fade on both positive the change in capacity of commercially available spinel based Li-ion Cells (Cellbatt cells). Study

Popov, Branko N.

52

Development of First Principles Capacity Fade Model for Li-Ion Cells  

E-Print Network [OSTI]

developed to simulate the capacity fade of Li-ion batteries. Incorporation of a continuous occurrence a first principles capacity fade model for Li-ion batteries. Darling and Newman1 made a first attempt into a lithium-ion battery model. The model explains the self-discharge process occurring in Li-ion cells

Popov, Branko N.

53

Conduction in Multiphase ParticulateFibrous Networks Simulations and Experiments on Li-ion Anodes  

E-Print Network [OSTI]

promising Li-ion battery technologies incorporate nanoarchitectured carbon networks, typically in the form electronically February 7, 2003. Several promising Li-ion battery technologies incorporate nanoarchitecturedConduction in Multiphase ParticulateÃ?Fibrous Networks Simulations and Experiments on Li-ion Anodes

Sastry, Ann Marie

54

Carbonophosphates: A New Family of Cathode Materials for Li-Ion Batteries Identified Computationally  

E-Print Network [OSTI]

Carbonophosphates: A New Family of Cathode Materials for Li-Ion Batteries Identified ABSTRACT: The tremendous growth of Li-ion batteries into a wide variety of applications is setting new applications from portable electronics to electric vehicles. A critical element of a Li-ion battery is the Li

Ceder, Gerbrand

55

Engineering Recently, we created the first Li-ion electrochemical cell  

E-Print Network [OSTI]

characterization of Li-ion battery materials. In this presentation, I'll first review our latest progress of using for understanding important processes in Li-ion batteries. For example, liquid cells are required in order impact on the design of Li-ion batteries. Finally I will discuss outstanding challenging issues

56

Electrochimica Acta 51 (2006) 20122022 A generalized cycle life model of rechargeable Li-ion batteries  

E-Print Network [OSTI]

­discharge model to simulate the cycle life behavior of rechargeable Li-ion batteries has been developed. The model and Newman [4] made a first attempt to model the parasitic reaction in Li-ion batteries by assuming a solvent and reversible capacity loss due to the growth and dissolution of SEI film in Li-ion batteries. Ramadass et al

Popov, Branko N.

57

Short communication Enhanced autonomic shutdown of Li-ion batteries by polydopamine  

E-Print Network [OSTI]

Short communication Enhanced autonomic shutdown of Li-ion batteries by polydopamine coated Accepted 9 July 2014 Available online 17 July 2014 Keywords: Li-ion batteries Thermal shutdown Polyethylene binder, applied onto a battery anode surface, dried, and incorporated into Li-ion coin cells. FTIR

Sottos, Nancy R.

58

Li ion migration in Li3PO4 electrolytes: Effects of O vacancies and N substitutions  

E-Print Network [OSTI]

Li ion migration in Li3PO4 electrolytes: Effects of O vacancies and N substitutions Y. A. Dua and N structures of isolated defects associated with extrinsic Li ion vacancies and interstitials. In particular the combination of an O vacancy and a N substitution, stabilizing a Li ion vacancy. We also studied the effects

Holzwarth, Natalie

59

E-Print Network 3.0 - advanced steady-state tokamak Sample Search...  

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

CREDITS(TOPTOBOTTOM):DONGYIDONG;D.NORMILESCIENCE Summary: for Plasma Research is now commissioning its Steady State Superconducting Tokamak. An engineering...

60

From a Failed-Growth Economy to a Steady-State Economy  

E-Print Network [OSTI]

From a Failed-Growth Economy to a Steady-State Economy By Herman Daly A steady-state economy of negative growth, a depression such as we are entering now, is a failed-growth economy, not a steady-state economy. Halting an accelerating downward spiral is necessary but is not the same thing as resuming

Zaferatos, Nicholas C.

Note: This page contains sample records for the topic "li-ion steady state" 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

Correction to ``Nitrate and colloid transport through coarse Hanford sediments under steady state,  

E-Print Network [OSTI]

Correction to ``Nitrate and colloid transport through coarse Hanford sediments under steady state), Correction to ``Nitrate and colloid transport through coarse Hanford sediments under steady state, variably and colloid transport through coarse Hanford sediments under steady state, variably saturated flow'' by Kelly

Flury, Markus

62

Predictive Models of Li-ion Battery Lifetime (Presentation)  

SciTech Connect (OSTI)

Predictive models of Li-ion battery reliability must consider a multiplicity of electrochemical, thermal and mechanical degradation modes experienced by batteries in application environments. Complicating matters, Li-ion batteries can experience several path dependent degradation trajectories dependent on storage and cycling history of the application environment. Rates of degradation are controlled by factors such as temperature history, electrochemical operating window, and charge/discharge rate. Lacking accurate models and tests, lifetime uncertainty must be absorbed by overdesign and warranty costs. Degradation models are needed that predict lifetime more accurately and with less test data. Models should also provide engineering feedback for next generation battery designs. This presentation reviews both multi-dimensional physical models and simpler, lumped surrogate models of battery electrochemical and mechanical degradation. Models are compared with cell- and pack-level aging data from commercial Li-ion chemistries. The analysis elucidates the relative importance of electrochemical and mechanical stress-induced degradation mechanisms in real-world operating environments. Opportunities for extending the lifetime of commercial battery systems are explored.

Smith, K.; Wood, E.; Santhanagopalan, S.; Kim, G.; Shi, Y.; Pesaran, A.

2014-09-01T23:59:59.000Z

63

Steady states of the parametric rotator and pendulum  

E-Print Network [OSTI]

We discuss several steady-state rotation and oscillation modes of the planar parametric rotator and pendulum with damping. We consider a general elliptic trajectory of the suspension point for both rotator and pendulum, for the latter at an arbitrary angle with gravity, with linear and circular trajectories as particular cases. We treat the damped, non-linear equation of motion of the parametric rotator and pendulum perturbatively for small parametric excitation and damping, although our perturbative approach can be extended to other regimes as well. Our treatment involves only ordinary second-order differential equations with constant coefficients, and provides numerically accurate perturbative solutions in terms of elementary functions. Some of the steady-state rotation and oscillation modes studied here have not been discussed in the previous literature. Other well-known ones, such as parametric resonance and the inverted pendulum, are extended to elliptic parametric excitation tilted with respect to gravity. The results presented here should be accessible to advanced undergraduates, and of interest to graduate students and specialists in the field of non-linear mechanics.

Antonio O. Bouzas

2011-03-08T23:59:59.000Z

64

Are water simulation models consistent with steady-state and ultrafast vibrational spectroscopy experiments?  

E-Print Network [OSTI]

Are water simulation models consistent with steady-state and ultrafast vibrational spectroscopy, United States b Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States c Department of Chemistry, Stanford University, Stanford, CA 94305, United States Received

Fayer, Michael D.

65

Thermal Abuse Modeling of Li-Ion Cells and Propagation in Modules (Presentation)  

SciTech Connect (OSTI)

The objectives of this paper are: (1) continue to explore thermal abuse behaviors of Li-ion cells and modules that are affected by local conditions of heat and materials; (2) use the 3D Li-ion battery thermal abuse 'reaction' model developed for cells to explore the impact of the location of internal short, its heating rate, and thermal properties of the cell; (3) continue to understand the mechanisms and interactions between heat transfer and chemical reactions during thermal runaway for Li-ion cells and modules; and (4) explore the use of the developed methodology to support the design of abuse-tolerant Li-ion battery systems.

Kim, G.-H.; Pesaran, A.; Smith, K.

2008-05-01T23:59:59.000Z

66

Study of Li-ion Cell Formation Parameters using "Gen3" Electrode...  

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

merit08gering1.pdf More Documents & Publications Statistical Design of Experiment for Li-ion Cell Formation Parameters using Gen3 Electrode Materials: Final Summary Vehicle...

67

Ethylmethylcarbonate, a promising solvent for Li-ion rechargeable batteries  

SciTech Connect (OSTI)

Ethylmethylcarbonate (EMC) has been found to be a promising solvent for rechargeable Li-ion batteries. Graphite electrodes, which are usually sensitive to the composition of the electrolyte solution, can be successfully cycled at high reversible capacities in several Li salt solutions in this solvent (LiAsF{sub 6}, LiPF{sub 6}, etc.). These results are interesting because lithium ions cannot intercalate into graphite in diethyl carbonate solutions and cycle poorly in dimethyl carbonate solutions. To understand the high compatibility of EMC for Li-ion battery systems as compared with the other two open-chain alkyl carbonates mentioned above, the surface chemistry developed in both Li and carbon electrodes in EMC solution was studied and compared with that developed on these electrodes in other alkyl carbonate solutions. Basically, the major surface species formed on both electrodes in EMC include ROLi, ROCO{sub 2}Li, and Li{sub 2}CO{sub 3} species. The uniqueness of EMC as a battery solvent is discussed in light of these studies.

Ein-Eli, Y.; Thomas, S.R.; Koch, V. [Covalent Associates Inc., Woburn, MA (United States); Aurbach, D.; Markovsky, B.; Schechter, A. [Bar-Ilan Univ., Ramat Gan (Israel). Dept. of Chemistry

1996-12-01T23:59:59.000Z

68

Capacity Fade Studies of LiCoO2 Based Li-ion Cells Cycled at  

E-Print Network [OSTI]

in capacity of commercially available Sony 18650 Cells cycled at different temperatures. Perform rate of a Sony 18650 Li-ion cell Cathode (positive electrode) - LiCoO2. Anode (negative electrode) - MCMB. Cell capacity ­ 1.8 Ah #12;Characteristics of a Sony 18650 Li-ion cell Characteristics Positive LiCoO2 Negative

Popov, Branko N.

69

Electrochemical Lithium Harvesting from Waste Li-ion Batteries Byron M. Wolfe III1  

E-Print Network [OSTI]

Electrochemical Lithium Harvesting from Waste Li-ion Batteries Byron M. Wolfe III1 , Wen Chao Lee1 This study demonstrates the feasibility of using water and the contents of waste Li-ion batteries for the electrodes in a Li-liquid battery system. Li metal was collected electrochemically from a waste Li

Zhou, Yaoqi

70

Stochastic Simulation Model for the 3D Morphology of Composite Materials in Li-Ion Batteries  

E-Print Network [OSTI]

Stochastic Simulation Model for the 3D Morphology of Composite Materials in Li-Ion Batteries Ralf of composite materials used in Li-ion batteries. In this paper, we develop a stochastic simulation model in 3D, Stochastic Simulation Model, Structural Analysis, Marked Point Process, Germ-Grain Model, Model Fitting

Schmidt, Volker

71

Rod Bundle Heat Transfer: Steady-State Steam Cooling Experiments  

SciTech Connect (OSTI)

Through the joint efforts of the Pennsylvania State University and the United States Nuclear Regulatory Commission, an experimental rod bundle heat transfer (RBHT) facility was designed and built. The rod bundle consists of a 7 x 7 square pitch array with spacer grids and geometry similar to that found in a modern pressurized water reactor. From this facility, a series of steady-state steam cooling experiments were performed. The bundle inlet Reynolds number was varied from 1 400 to 30 000 over a pressure range from 1.36 to 4 bars (20 to 60 psia). The bundle inlet steam temperature was controlled to be at saturation for the specified pressure and the fluid exit temperature exceeded 550 deg. C in the highest power tests. One important quantity of interest is the local convective heat transfer coefficient defined in terms of the local bulk mean temperature of the flow, local wall temperature, and heat flux. Steam temperatures were measured at the center of selected subchannels along the length of the bundle by traversing miniaturized thermocouples. Using an analogy between momentum and energy transport, a method was developed for relating the local subchannel centerline temperature measurement to the local bulk mean temperature. Wall temperatures were measured using internal thermocouples strategically placed along the length of each rod and the local wall heat flux was obtained from an inverse conduction program. The local heat transfer coefficient was calculated from the data at each rod thermocouple location. The local heat transfer coefficients calculated for locations where the flow was fully developed were compared against several published correlations. The Weisman and El-Genk correlations were found to agree best with the RBHT steam cooling data, especially over the range of turbulent Reynolds numbers. The effect of spacer grids on the heat transfer enhancement was also determined from instrumentation placed downstream of the spacer grid locations. The local heat transfer was found to be greatest at locations immediately downstream of the grid, and as the flow moved further downstream from the grid it became more developed, thus causing the heat transfer to diminish. The amount of heat transfer enhancement was found to depend not only on the spacer grid design, but also on the local Reynolds number. It was seen that decreasing Reynolds number leads to greater heat transfer enhancement. (authors)

Spring, J.P.; McLaughlin, D.M. [The Pennsylvania State University, 201 Shields Building University Park, PA 16802 (United States)

2006-07-01T23:59:59.000Z

72

Journal of Crystal Growth 226 (2001) 430435 Steady state detached solidification of water at zero gravity  

E-Print Network [OSTI]

Journal of Crystal Growth 226 (2001) 430­435 Steady state detached solidification of water at zero April 2001 Communicated by R.S. Feigelson Abstract Steady-state detached solidification of water in microgravity, detached solidification of water is predicted to occur in a sealed ampoule at zero gravity under

Regel, Liya L.

73

On Steady-State Cornering Equilibria for Wheeled Vehicles with Drift  

E-Print Network [OSTI]

In this work we derive steady-state cornering conditions for a single-track vehicle model without restricting the operation of the tires to their linear region (i.e. allowing the vehicle to drift). For each steady-state ...

Velenis, Efstathios

74

Reliability importance analysis of Markovian systems at steady state using perturbation analysis  

E-Print Network [OSTI]

Reliability importance analysis of Markovian systems at steady state using perturbation analysis for static systems, i.e. systems described by combinatorial reliability models (fault or event trees for steady state sensitivity analysis of Markov processes in reliability studies. Keywords: perturbation

Paris-Sud XI, Université de

75

APS/123-QED Hydraulic Flow through a Contraction: Multiple Steady States  

E-Print Network [OSTI]

APS/123-QED Hydraulic Flow through a Contraction: Multiple Steady States Benjamin Akers Department states, as well as a steady reservoir with a two-dimensional hydraulic jump in the contraction occur-dimensional hydraulic theory provides a comprehensive leading-order explanation, but quadratic friction is re- quired

Al Hanbali, Ahmad

76

Dynamic Versus Steady-State Modeling of FACTS Controllers in Transmission Congestion  

E-Print Network [OSTI]

benchmark system is used to illustrate and compare the effect on locational marginal prices and transmission marginal prices obtained from stability-constrained auction models when dynamic and steady state FACTS discusses the effect on transmission congestion management and pricing of dynamic and steady- state models

Cañizares, Claudio A.

77

MODELING PACKAGED HEAT PUMPS IN A QUASI-STEADY STATE ENERGY  

E-Print Network [OSTI]

the experimental data for water-to-air heat pumps. Last but not least, financial support from the U.S Department ........................................................ 6 2.1. Steady State Air-to-Air Heat Pump Models........................................................ 13 2.2. Steady State Water-to-Air Heat Pump Models

78

Photovoltaic transistors based on a steady-state internal polarization effect in asymmetric semiconductor superlattices  

E-Print Network [OSTI]

Photovoltaic transistors based on a steady-state internal polarization effect in asymmetric that a modified structure can generate a steady-state photovoltage. We then propose a new class of photovoltaic novelty is such a photovoltaic transistor (PVT) aspect. Our idea of the PVT arises from the well known

Luryi, Serge

79

A Thrust Stand for High-power Steady-state Plasma Thrusters L.D. Cassady,  

E-Print Network [OSTI]

of an inverted-pendulum thrust stand to measure thrust for high-power steady- state plasma thrusters is presentedA Thrust Stand for High-power Steady-state Plasma Thrusters L.D. Cassady, A.D. Kodys, and E Department Princeton University, Princeton, New Jersey 08544 (Dated: July 18, 2002) The operation

Choueiri, Edgar

80

Thermal Effects on Inverted Pendulum Thrust Stands for Steady-state High-power Plasma Thrusters  

E-Print Network [OSTI]

Thermal Effects on Inverted Pendulum Thrust Stands for Steady-state High-power Plasma Thrusters A and Aerospace Engineering Department Princeton University, Princeton, New Jersey 08544 AIAA-2003-4842§ July 22, 2003 Abstract Thermal effects on direct measurements of the thrust produced by steady-state, high-power

Choueiri, Edgar

Note: This page contains sample records for the topic "li-ion steady state" 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

Nitrate and colloid transport through coarse Hanford sediments under steady state, variably saturated flow  

E-Print Network [OSTI]

Nitrate and colloid transport through coarse Hanford sediments under steady state, variably] At the U.S. Department of Energy's Hanford Reservation, colloid-facilitated transport is a potential of colloids through Hanford sediments under steady state, unsaturated flow conditions. We isolated colloids

Flury, Markus

82

A dusty plasma device for producing extended, steady state, magnetized, dusty plasma columns  

E-Print Network [OSTI]

A dusty plasma device for producing extended, steady state, magnetized, dusty plasma columns Wenjun with an existing Q machine, to produce extended, steady state, magnetized plasma columns. The dusty plasma device (DPD) is to be used for the investigation of waves in dusty plasmas and of other plasma/dust aspects

Merlino, Robert L.

83

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon...  

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

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-ion Battery Cathode. LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-ion...

84

Nonequilibrium Phase Transformation and Particle Shape Effect in LiFePO4 Materials for Li-Ion Batteries  

E-Print Network [OSTI]

-induced nonequilibrium phenomenon in Li-ion batteries. A theoretical anal- ysis is presented to show for Li-ion batteries as power sources in transporta- tion and future energy landscape requires transformaiton in Li ion batteries, especially on meta- stable miscibility gap distortion and discharge behaviors

Liu, Fuqiang

85

Journal of Power Sources 126 (2004) 193202 Li-ion microbatteries generated by a laser direct-write method  

E-Print Network [OSTI]

to fabricate Li-ion microbatteries. The battery electrodes are made by the laser-induced forward transfer. Keywords: Microbattery; Battery; Li-ion; Direct-write; Laser 1. Introduction A current trend in technologyJournal of Power Sources 126 (2004) 193­202 Li-ion microbatteries generated by a laser direct

Arnold, Craig B.

86

A Yolk-Shell Design for Stabilized and Scalable Li-Ion Battery Alloy Matthew T. McDowell,  

E-Print Network [OSTI]

A Yolk-Shell Design for Stabilized and Scalable Li-Ion Battery Alloy Anodes Nian Liu,, Hui Wu nanoparticle, Li-ion battery, anode, yolk-shell, solid-electrolyte interphase, in situ TEM Electrochemical anode that is currently used in Li-ion batteries.2 Among all the alloy anodes, silicon has the highest

Cui, Yi

87

A Simplified Electrochemical and Thermal Aging Model of LiFePO4-Graphite Li-ion Batteries  

E-Print Network [OSTI]

1 A Simplified Electrochemical and Thermal Aging Model of LiFePO4-Graphite Li-ion Batteries: Power of a commercial LiFePO4-graphite Li-ion battery. Compared to the isothermal reference, the mechanism of porosity;2 Due to their high power and energy densities, Li-ion technologies are the leading battery systems

88

Figure 1. Schematic drawing showing the components of a Li-ion battery cell and the information that can be  

E-Print Network [OSTI]

Figure 1. Schematic drawing showing the components of a Li-ion battery cell and the information Proposals In Situ Electron Microscopy and Spectroscopy Studies of Interfaces in Advanced Li-ion Batteries) such as Li-ion batteries are complex multi- component systems that incorporate widely dissimilar phases

89

Microstructure Reconstruction and Direct Evaluation of Li-Ion Battery Cathodes Fuqiang Liu* and N A Siddique  

E-Print Network [OSTI]

Microstructure Reconstruction and Direct Evaluation of Li-Ion Battery Cathodes Fuqiang Liu* and N of Texas at Arlington, Arlington, Texas 76019, USA High-capacity Li-ion batteries are among the best of the major challenges in Li-ion batteries is to improve mass transport across multiple phase interfaces

Liu, Fuqiang

90

On the electrochemical reactivity and design of NiP2 negative electrodes for secondary Li-ion batteries  

E-Print Network [OSTI]

commercialisation, rechargeable Li-ion batteries are widely accepted, and are becoming the main power source1 On the electrochemical reactivity and design of NiP2 negative electrodes for secondary Li-ion study of cubic and monoclinic NiP2 polymorphs towards Li, as candidate for anodic applications for Li-ion

Boyer, Edmond

91

Simplified Electrochemical and Thermal Model of LiFePO4-Graphite Li-Ion Batteries for Fast Charge Applications  

E-Print Network [OSTI]

Simplified Electrochemical and Thermal Model of LiFePO4- Graphite Li-Ion Batteries for Fast Charge, a simplified electrochemical and thermal model of LiFePO4-graphite based Li-ion batteries is developed : 10.1149/2.064209jes #12;Over the past 15 years, Li-ion batteries have received much attention

Paris-Sud XI, Université de

92

Highly Reversible Li-Ion Intercalating MoP2 Nanoparticle Cluster Anode for Lithium Rechargeable Batteries  

E-Print Network [OSTI]

Highly Reversible Li-Ion Intercalating MoP2 Nanoparticle Cluster Anode for Lithium Rechargeable, metal phosphides MPn, M = transition metal ions as attractive Li-ion anode materials have received lithium reactions, i MPn LixMPn simple Li-ion interca- lation and ii MPn M LixM + LixP alloying followed

Cho, Jaephil

93

E-Print Network 3.0 - auditory steady state Sample Search Results  

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

State... Channel Amplitude + Phase... 12;Whole Head Steady State Response 32 Hz 12;VRe VIm VMax VMin Max 90 90... 007657, 1F31NS055589 12;The Brain and How It Works The Auditory...

94

E-Print Network 3.0 - atp steady state Sample Search Results  

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

state Search Powered by Explorit Topic List Advanced Search Sample search results for: atp steady state Page: << < 1 2 3 4 5 > >> 1 Asymmetric deceleration of ClpB or Hsp104...

95

Steady-state bumpless transfer under controller uncertainty using the state/output feedback topology  

SciTech Connect (OSTI)

Linear quadratic (LQ) bumpless transfer design introduced recently by Turner and Walker gives a very convenient and straightforward computational procedure for the steady-state bumpless transfer operator synthesis. It is, however, found to be incapable of providing convergence of the output of the offline controller to that of the online controller in several industrial applications, producing bumps in the plant output in the wake of controller transfer. An examination of this phenomenon reveals that the applications in question are characterized by a significant mismatch, further referred to as controller uncertainty, between the dynamics of the implemented controllers and their models used in the transfer operator computation. To address this problem, while retaining the convenience of the Turner and Walker design, a novel state/output feedback bumpless transfer topology is introduced that employs the nominal state of the offline controller and, through the use of an additional controller/model mismatch compensator, also the offline controller output. A corresponding steady-state bumpless transfer design procedure along with the supporting theory is developed for a large class of systems. Due to these features, it is demonstrated to solve a long-standing problem of high-quality steady-state bumpless transfer from the industry standard low-order nonlinear multiloop PID-based controllers to the modern multiinput-multioutput (MIMO) robust controllers in the megawatt/throttle pressure control of a typical coal-fired boiler/turbine unit.

Zheng, K.; Lee, A.H.; Bentsman, J.; Taft, C.W. [University of Illinois, Urbana, IL (United States)

2006-01-15T23:59:59.000Z

96

Statistical mechanical theory for steady state systems. II. Reciprocal relations and the second entropy  

E-Print Network [OSTI]

Statistical mechanical theory for steady state systems. II. Reciprocal relations and the second.1063/1.1873572 I. INTRODUCTION This is the second in a series of papers on the statistical mechanics of steady for the first energy moment of a Lennard-Jones fluid that develops in response to an applied temperature

Attard, Phil

97

Optimization of a Steady-State Tokamak-Based Power Plant  

E-Print Network [OSTI]

Optimization of a Steady-State Tokamak-Based Power Plant Farrokh Najmabadi University of California, San Diego, La Jolla, CA IEA Workshop 59 "Shape and aspect ratio optimization for high , steady between a physics optimization and an integrated systems optimization Identify key impact of physics

98

A steady state analysis code for prediction of behavior in loop heat pipes  

E-Print Network [OSTI]

The purpose of this work is to prepare an analysis raphics. code for the prediction of Loop Heat Pipe (LHP) behavior in steady-state operation. The FORTRAN program is then benchmarked with experimental data obtained in two orientations: 1...

Hamm, Trenton Allen

1998-01-01T23:59:59.000Z

99

Steady-state and equilibrium vortex configurations, transitions, and evolution in a mesoscopic superconducting cylinder  

E-Print Network [OSTI]

that the system passes through nearly metastable intermediate configurations while seeking the final minimum-energy steady state consistent with the square symmetry of the sample. An efficient scheme to determine the equilibrium vortex configuration in a...

Kim, S.; Hu, Chia-Ren; Andrews, MJ.

2004-01-01T23:59:59.000Z

100

Technical challenges in the construction of the steady-state stellarator Wendelstein 7-X  

SciTech Connect (OSTI)

The next step in the Wendelstein stellarator line is the large superconducting device Wendelstein 7-X, currently under construction in Greifswald, Germany. Steady-state operation is an intrinsic feature of stellarators, and one key element of the Wendelstein 7-X mission is to demonstrate steady-state operation under plasma conditions relevant for a fusion power plant. Steady-state operation of a fusion device, on the one hand, requires the implementation of special technologies, giving rise to technical challenges during the design, fabrication and assembly of such a device. On the other hand, also the physics development of steady-state operation at high plasma performance poses a challenge and careful preparation. The electron cyclotron resonance heating system, diagnostics, experiment control and data acquisition are prepared for plasma operation lasting 30 min. This requires many new technological approaches for plasma heating and diagnostics as well as new concepts for experiment control and data acquisition.

Bosch, H.-S. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Wolf, R. C. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Andreeva, T. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Cardella, A [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Erckmann, V. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Gantenbein, G [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Hathiramani, D [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Kasparek, W [Universitat Stuttgart, Institute fur Plasmaforschung, Germany] [Universitat Stuttgart, Institute fur Plasmaforschung, Germany; Klinger, T. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Koenig, R [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Kornejew, P [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Laqua, H P [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Lechte, C [Universitat Stuttgart, Institute fur Plasmaforschung, Germany] [Universitat Stuttgart, Institute fur Plasmaforschung, Germany; Michel, G [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Peacock, A. [Max-Planck-Institut fur Plasmaphysik, EURATOM Association, Garching, Germany] [Max-Planck-Institut fur Plasmaphysik, EURATOM Association, Garching, Germany; Sunn Pedersen, T [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Thumm, M [Karlsruhe Institute for Technology, IHM, EURATOM Association, Karlsruhe, Germany] [Karlsruhe Institute for Technology, IHM, EURATOM Association, Karlsruhe, Germany; Turkin, Yu. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Wegener, Lutz [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Werner, A. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Zhang, D [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Beidler, C. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany] [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Bozhenkov, S. [EURATOM-Association, Max Planck Institute of Plasma Physics, Greifswald, Germany] [EURATOM-Association, Max Planck Institute of Plasma Physics, Greifswald, Germany; Brown, T. [Princeton Plasma Physics Laboratory (PPPL)] [Princeton Plasma Physics Laboratory (PPPL)

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "li-ion steady state" 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

Aspects of Steady-State Operation of the Wendelstein 7-X Stellarator  

SciTech Connect (OSTI)

The objective of Wendelstein 7-X is to demonstrate steady-state operation at -values of up to 5%, at ion temperatures of several keV and plasma densities of up to 2 1020 m 3. The second operational phase foresees a fully steady-state high heat flux (HHF) divertor. Preparations are underway to cope with residual bootstrap currents, either by electron cyclotron current drive or by HHF protection elements. The main steady-state heating system is an electron cyclotron resonance heating facility. Various technical improvements of the gyrotrons have been implemented recently. They enable a reliable operation at the 1MW power level. Some of the technical issues preparing plasma diagnostics for steady-state operation are exemplified. This includes the protection against non-absorbed microwave radiation.

Geiger, J. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Wolf, R. C. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Beidler, C. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Cardella, A [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Chlechowitz, E [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Erckmann, V. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Gantenbein, G [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Hathiramani, D [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Hirsch, M [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Kasparek, W [Institute for Plasma Research, University of Stuttgart; Kisslinger, J [EURATOM / IPP Garching, Germany; Koenig, R [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Kornejew, P [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Laqua, H P [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Lechte, C [Institute for Plasma Research, University of Stuttgart; Lore, Jeremy D [ORNL; Lumsdaine, Arnold [ORNL; Maassberg, H. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Marushchenko, N B [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Michel, G [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Otte, M [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Peacock, A. [Max-Planck-Institut fur Plasmaphysik, EURATOM Association, Garching, Germany; Sunn Pedersen, T [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Thumm, M [Karlsruhe Institute for Technology, IHM, EURATOM Association, Karlsruhe, Germany; Turkin, Yu. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Werner, A. [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany; Zhang, D [Max-Planck-Institute for Plasmaphysik, EURATOM-Association, Greifswald, Germany

2013-01-01T23:59:59.000Z

102

ASHRAE Transactions: Research 3 A steady-state simulation model for a water-to-water  

E-Print Network [OSTI]

ASHRAE Transactions: Research 3 ABSTRACT A steady-state simulation model for a water Reciprocating vapor compression heat pumps and chill- ers have been the target of a number of simulation models

103

E-Print Network 3.0 - additional steady-state acquisition Sample...  

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

for: additional steady-state acquisition Page: << < 1 2 3 4 5 > >> 1 IEEE TRANS. BIOMEDICAL ENGINEERING 52 (8), 1450-1460, 2005 1 Automated Correction of Spin-History Related...

104

Second-Use Li-Ion Batteries to Aid Automotive and Utility Industries (Fact Sheet)  

SciTech Connect (OSTI)

Repurposing Li-ion batteries at the end of useful life in electric drive vehicles could eliminate owners' disposal concerns and offer low-cost energy storage for certain applications.

Not Available

2014-01-01T23:59:59.000Z

105

Significant Cost Improvement of Li-Ion Cells Through Non-NMP...  

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

P.I. Yongkyu Son Johnson Controls 2014 DOE Vehicle Technologies Program Review June 17, 2014 Project ID : ES133 Significant Cost Improvement of Li-ion Cells Through Non-NMP...

106

High Energy Density Li-ion Cells for EVs Based on Novel, High...  

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

Storage Systems Vehicle Technologies Annual Merit Review 6182014 1 High Energy Density Li-ion Cells for EV's Based on Novel, High Voltage Cathode Material Systems Keith D. Kepler...

107

An ultra-compact and efficient Li-ion battery charger circuit for biomedical applications  

E-Print Network [OSTI]

This paper describes an ultra-compact analog lithium-ion (Li-ion) battery charger for wirelessly powered implantable medical devices. The charger presented here takes advantage of the tanh output current profile of an ...

Do Valle, Bruno Guimaraes

108

Poiseuille flow of soft glasses in narrow channels: From quiescence to steady state  

E-Print Network [OSTI]

Using numerical simulations, the onset of Poiseuille flow in a confined soft glass is investigated. Starting from the quiescent state, steady flow sets in at a time scale which increases with a decrease in applied forcing. At this onset time scale, a rapid transition occurs via the simultaneous fluidization of regions having different local stresses. In the absence of steady flow at long times, creep is observed even in regions where the local stress is larger than the bulk yielding threshold. Finally, we show that the time scale to attain steady flow depends strongly on the history of the initial state.

Pinaki Chaudhuri; Jürgen Horbach

2014-10-26T23:59:59.000Z

109

Mathematical modeling of electroless nickel deposition at steady state using rotating disk electrode  

SciTech Connect (OSTI)

Mathematical modeling of electroless nickel deposition was performed to predict the phosphorus content in Ni-P alloy film at steady state using the rotating disk system. The model consists of steady-state convective diffusion equations with nonlinear boundary conditions and overpotential equations satisfying the mixed potential theory. The weight percent of phosphorus predicted in Ni-P alloy agrees well with the experimental values within the experimental conditions carried out.

Kim, Y.S.; Sohn, H.J. [Seoul National Univ. (Korea, Republic of). Dept. of Mineral and Petroleum Engineering

1996-02-01T23:59:59.000Z

110

Application of variational techniques for parametric studies of steady-state controlled thermonuclear reactor blankets  

E-Print Network [OSTI]

APPLICATION OF VARIATIONAL TECHNIQUES FOR PARAMETRIC STUDIES OF STEADY-STATE CONTROLLED THERMONUCLEAR REACTOR BLANKETS A Thesis JAMES DAVID PEARCE Submitted to the Graduate College of Texas A6M University in partial fulfillment... of the requirement for the degree of MASTER OP SCIENCE May 1975 Ma)or Subject: Nuclear Engineering APPLICATION OF VARIATIONAL TECHNIQUES FOR PARAMETRIC STUDIES OF STEADY-STATE CONTROLLED THERMONUCLEAR REACTOR BLANKETS A Thesis by JAMES DAVID PEARCE Approved...

Pearce, James David

1975-01-01T23:59:59.000Z

111

Conformational stability, flexibility, and steady-state activity of Ribonuclease T1 variants  

E-Print Network [OSTI]

CONFORMATIONAL STABILITY, FLEXIBILITY, AND STEADY ? STATE ACTIVITY OF RIBONUCLEASE T1 VARIANTS A Thesis by BRIAN JUDSON HUBBARD Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 1995 Major Subject: Chemistry CONFORMATIONAL STABILITY, FLEXIBILITY, AND STEADY ? STATE ACTIVITY OF RIBONUCLEASE Tl VARIANTS A Thesis by BRIAN JUDSON HUBBARD Submitted to Texas A8dVl University in partial...

Hubbard, Brian Judson

2012-06-07T23:59:59.000Z

112

NREL's PHEV/EV Li-Ion Battery Secondary-Use Project  

SciTech Connect (OSTI)

Accelerated development and market penetration of plug-in hybrid electric vehicles (PHEVs) and electric vehicles (EVs) is restricted at present by the high cost of lithium-ion (Li-ion) batteries. One way to address this problem is to recover a fraction of the Li-ion battery's cost via reuse in other applications after it is retired from service in the vehicle, when the battery may still have sufficient performance to meet the requirements of other energy storage applications.

Newbauer, J.; Pesaran, A.

2010-06-01T23:59:59.000Z

113

Stability of Multiple Steady States of Catalytic Combustion , and J. BRINDLEY  

E-Print Network [OSTI]

3 ) Cpr Initial concentration of propane (mol m 3 ) cp Specific heat capacity (gas) (J kg 1 ) cpcStability of Multiple Steady States of Catalytic Combustion A. JAMES* , and J. BRINDLEY Department state exists involving incomplete combustion of the fuel. The existence of such a stable state, which

James, Alex

114

A Note on Equations for Steady-State Optimal Landscapes  

E-Print Network [OSTI]

of global energy expenditure rate, not the total energyglobal optimality states that networks will adjust their topological structure such that the total energy

Liu, H.H.

2010-01-01T23:59:59.000Z

115

A note on equations for steady?state optimal landscapes  

E-Print Network [OSTI]

of global energy expenditure rate, not the total energyglobal optimality states that networks will adjust their topological structure such that the total energy

Liu, Hui-Hai

2011-01-01T23:59:59.000Z

116

Comparison of steady-state and transient CVS cycle emissions of an automotive Stirling engine  

SciTech Connect (OSTI)

The Automotive Stirling Engine Development Program has stringent emission goals for a Stirling-powered vehicle. The present investigation is concerned with the initial development of a procedure for predicting transient CVS urban cycle gaseous emissions from steady-state engine data. Steady-state data from three Mod I automotive Stirling engines are used to predict urban CVS cycle emissions for a Mod I Lerma vehicle. Predicted data with respect to NOx emissions were found to correspond closely to measured values, while there were differences for the CO and HC data. Reasons for these differences are briefly discussed. Attention is given to the test procedure and the measurements, the engine test results, vehicle emissions predictions, and a comparison of vehicle results and steady-state predictions. 11 references.

Farrell, R.A.; Bolton, R.J.

1983-01-01T23:59:59.000Z

117

Current Control in ITER Steady State Plasmas With Neutral Beam Steering  

SciTech Connect (OSTI)

Predictions of quasi steady state DT plasmas in ITER are generated using the PTRANSP code. The plasma temperatures, densities, boundary shape, and total current (9 - 10 MA) anticipated for ITER steady state plasmas are specified. Current drive by negative ion neutral beam injection, lower-hybrid, and electron cyclotron resonance are calculated. Four modes of operation with different combinations of current drive are studied. For each mode, scans with the NNBI aimed at differing heights in the plasma are performed to study effects of current control on the q profile. The timeevolution of the currents and q are calculated to evaluate long duration transients. Quasi steady state, strongly reversed q profiles are predicted for some beam injection angles if the current drive and bootstrap currents are sufficiently large.

R.V. Budny

2009-09-10T23:59:59.000Z

118

SUPERENERGY-2: a multiassembly, steady-state computer code for LMFBR core thermal-hydraulic analysis  

SciTech Connect (OSTI)

Core thermal-hydraulic design and performance analyses for Liquid Metal Fast Breeder Reactors (LMFBRs) require repeated detailed multiassembly calculations to determine radial temperature profiles and subchannel outlet temperatures for various core configurations and subassembly structural analyses. At steady-state, detailed core-wide temperature profiles are required for core restraint calculations and subassembly structural analysis. In addition, sodium outlet temperatures are routinely needed for each reactor operating cycle. The SUPERENERGY-2 thermal-hydraulic code was designed specifically to meet these designer needs. It is applicable only to steady-state, forced-convection flow in LMFBR core geometries.

Basehore, K.L.; Todreas, N.E.

1980-08-01T23:59:59.000Z

119

Local Wettability Reversal during Steady-State Two-Phase Flow in Porous Media  

E-Print Network [OSTI]

We study the effect of local wettability reversal on remobilizing immobile fluid clusters in steady-state two-phase flow in porous media. We consider a two dimensional network model for porous medium and introduce a wettability alteration mechanism. A qualitative change in the steady state flow patterns, destabilizing the percolating and trapped clusters, is observed as the system wettability is varied. When capillary forces are strong a finite wettability alteration is necessary to move the system from single-phase to two-phase flow regime. For the case of both phases being mobile we find a linear relationship between fractional flow and wettability alteration.

Sinha, Santanu; Ødegården, Torgeir Bryge; Skjetne, Erik; Hansen, Alex; 10.1103/PhysRevE.84.037303

2012-01-01T23:59:59.000Z

120

Steam generator steady-state model for on-line data validation. [LMFBR  

SciTech Connect (OSTI)

To develop an efficient algorithm for on-line plant-wide data validation and fault identification fast running computer models that adequately describe the different plant processes are required. For example, if the data validation interval is of the order of one second, these models must be running faster than one second. This paper presents a fast running model for steady-state analysis of a once-through LMFBR steam generator. In computer codes like DSNP and SASSYS, the computation time for steady-state analysis of a typical once-through LMFBR steam generator is approx. 5 to 7 seconds. This time imposes excessively long validation intervals.

Tzanos, C.P.

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "li-ion steady state" 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

FORMULATION OF NON-STEADY-STATE DUST FORMATION PROCESS IN ASTROPHYSICAL ENVIRONMENTS  

SciTech Connect (OSTI)

The non-steady-state formation of small clusters and the growth of grains accompanied by chemical reactions are formulated under the consideration that the collision of key gas species (key molecule) controls the kinetics of dust formation process. The formula allows us to evaluate the size distribution and condensation efficiency of dust formed in astrophysical environments. We apply the formulation to the formation of C and MgSiO{sub 3} grains in the ejecta of supernovae, as an example, to investigate how the non-steady effect influences the formation process, condensation efficiency f{sub con,{sub ?}}, and average radius a{sub ave,{sub ?}} of newly formed grains in comparison with the results calculated with the steady-state nucleation rate. We show that the steady-state nucleation rate is a good approximation if the collision timescale of key molecule ?{sub coll} is much smaller than the timescale ?{sub sat} with which the supersaturation ratio increases; otherwise the effect of the non-steady state becomes remarkable, leading to a lower f{sub con,{sub ?}} and a larger a{sub ave,{sub ?}}. Examining the results of calculations, we reveal that the steady-state nucleation rate is applicable if the cooling gas satisfies ? ? ?{sub sat}/?{sub coll} ?> 30 during the formation of dust, and find that f{sub con,{sub ?}} and a{sub ave,{sub ?}} are uniquely determined by ?{sub on} at the onset time t{sub on} of dust formation. The approximation formulae for f{sub con,{sub ?}} and a{sub ave,{sub ?}} as a function of ?{sub on} could be useful in estimating the mass and typical size of newly formed grains from observed or model-predicted physical properties not only in supernova ejecta but also in mass-loss winds from evolved stars.

Nozawa, Takaya [Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa, Chiba 277-8583 (Japan); Kozasa, Takashi, E-mail: takaya.nozawa@ipmu.jp [Department of Cosmosciences, Graduate School of Science, Hokkaido University, Sapporo 060-0810 (Japan)

2013-10-10T23:59:59.000Z

122

Effect of flame-retarding additives on surface chemistry in Li-ion batteries  

SciTech Connect (OSTI)

This study examined the properties of 1 wt.% vinylene carbonate (VC), vinyl ethylene carbonate (VEC), and diphenyl octyl phosphate (DPOF) additive electrolytes as a promising way of beneficially improving the surface and cell resistance of Li-ion batteries. Surface film formation on the negative and positive electrodes was analyzed by electrochemical impedance spectroscopy (EIS), Fourier transform infrared (FT-IR) spectroscopy, and scanning electron microscopy (SEM). In conclusion, EIS, FT-IR spectroscopy and SEM results confirmed that DPOF is an excellent additive to the electrolyte in the Li-ion batteries due to the improved co-intercalation of the solvent molecules.

Nam, N.D.; Park, I.J. [Department of Advanced Materials Science and Engineering, Sungkyunkwan University, 300 Chunchun-Dong, Jangan-Gu, Suwon 440-746 (Korea, Republic of)] [Department of Advanced Materials Science and Engineering, Sungkyunkwan University, 300 Chunchun-Dong, Jangan-Gu, Suwon 440-746 (Korea, Republic of); Kim, J.G., E-mail: kimjg@skku.ac.kr [Department of Advanced Materials Science and Engineering, Sungkyunkwan University, 300 Chunchun-Dong, Jangan-Gu, Suwon 440-746 (Korea, Republic of); Kim, H.S. [Battery Research Group, Korea Electrotechnology Research Institute, Changwon 641-120 (Korea, Republic of)] [Battery Research Group, Korea Electrotechnology Research Institute, Changwon 641-120 (Korea, Republic of)

2012-10-15T23:59:59.000Z

123

Stochastic quasi-steady state approximations for asymptotic solutions of the chemical master equation  

SciTech Connect (OSTI)

In this paper, we propose two methods to carry out the quasi-steady state approximation in stochastic models of enzyme catalytic regulation, based on WKB asymptotics of the chemical master equation or of the corresponding partial differential equation for the generating function. The first of the methods we propose involves the development of multiscale generalisation of a WKB approximation of the solution of the master equation, where the separation of time scales is made explicit which allows us to apply the quasi-steady state approximation in a straightforward manner. To the lowest order, the multi-scale WKB method provides a quasi-steady state, Gaussian approximation of the probability distribution. The second method is based on the Hamilton-Jacobi representation of the stochastic process where, as predicted by large deviation theory, the solution of the partial differential equation for the corresponding characteristic function is given in terms of an effective action functional. The optimal transition paths between two states are then given by those paths that maximise the effective action. Such paths are the solutions of the Hamilton equations for the Hamiltonian associated to the effective action functional. The quasi-steady state approximation is applied to the Hamilton equations thus providing an approximation to the optimal transition paths and the transition time between two states. Using this approximation we predict that, unlike the mean-field quasi-steady approximation result, the rate of enzyme catalysis depends explicitly on the initial number of enzyme molecules. The accuracy and validity of our approximated results as well as that of our predictions regarding the behaviour of the stochastic enzyme catalytic models are verified by direct simulation of the stochastic model using Gillespie stochastic simulation algorithm.

Alarcón, Tomás [Centre de Recerca Matemàtica, Edifici C, Campus de Bellaterra, 08193 Bellaterra (Barcelona) (Spain) [Centre de Recerca Matemàtica, Edifici C, Campus de Bellaterra, 08193 Bellaterra (Barcelona) (Spain); Departament de Matemàtiques, Universitat Atonòma de Barcelona, 08193 Bellaterra (Barcelona) (Spain)

2014-05-14T23:59:59.000Z

124

The Hybrid Solid Oxide Fuel Cell (SOFC) and Gas Turbine (GT) Systems Steady State Modeling  

E-Print Network [OSTI]

The Hybrid Solid Oxide Fuel Cell (SOFC) and Gas Turbine (GT) Systems Steady State Modeling Penyarat Fuel Cells (SOFCs) are of great interest nowadays. The feature of SOFCs makes them suitable for hybrid plants offer high cycle efficiencies. In this work a hybrid solid oxide fuel cell and gas turbine power

Paris-Sud XI, Université de

125

Metabolic cycling in single yeast cells from unsynchronized steady-state populations limited on  

E-Print Network [OSTI]

Metabolic cycling in single yeast cells from unsynchronized steady-state populations limited fraction of yeast genes are associated with the "metabolic cycle," usually seen only in prestarved the predicted oscillations. We conclude that the yeast metabolic cycle is an intrinsic property of yeast

Botstein, David

126

APS/123-QED Hydraulic Flow through a Channel Contraction: Multiple Steady States  

E-Print Network [OSTI]

APS/123-QED Hydraulic Flow through a Channel Contraction: Multiple Steady States Benjamin Akers with a complex hydraulic jump in the contraction occurring in a small section of the bc/b0 and Froude number parameter plane. One- dimensional hydraulic theory provides a comprehensive leading-order approximation

Al Hanbali, Ahmad

127

Upscaling of soil hydraulic properties for steady state evaporation and infiltration  

E-Print Network [OSTI]

Upscaling of soil hydraulic properties for steady state evaporation and infiltration Jianting Zhu September 2002. [1] Estimation of effective/average soil hydraulic properties for large land areas and guidelines for upscaling soil hydraulic properties in an areally heterogeneous field. In this study, we

Mohanty, Binayak P.

128

Effective hydraulic parameters for steady state vertical flow in heterogeneous soils  

E-Print Network [OSTI]

Effective hydraulic parameters for steady state vertical flow in heterogeneous soils Jianting Zhu August 2003. [1] In hydroclimate and land-atmospheric interaction models, effective hydraulic properties are needed at large grid scales. In this study, the effective soil hydraulic parameters of the areally

Mohanty, Binayak P.

129

ECE 331 Electromechanical Energy Conversion Catalog Description: Energy conversion principles for electric motors. Steady-state  

E-Print Network [OSTI]

. Introduction to drives and power electronics in control of electric machines, including switch-mode PWM (ABET Outcomes A, C, E, j, k) Learning Resources: Electric Machines and Drives: A First Course, Ned for electric motors. Steady-state characteristics and analysis of induction, synchronous and direct current

130

Comparison of Field Performance to Steady-State Performance for Two  

E-Print Network [OSTI]

efficiencies of these systems under field conditions. Steady-state performance data for individual heat pump reversal to defrost, by duty cycling, and by resort to electric resistance elements to supplement heating data on the seasonal performance of air-to-air residential heat pump systems. The purpose of this paper

Oak Ridge National Laboratory

131

STEADY STATE FLAMMABLE GAS RELEASE RATE CALCULATION AND LOWER FLAMMABILITY LEVEL EVALUATION FOR HANFORD TANK WASTE  

SciTech Connect (OSTI)

Assess the steady-state flammability level at normal and off-normal ventilation conditions. The hydrogen generation rate was calculated for 177 tanks using the rate equation model. Flammability calculations based on hydrogen, ammonia, and methane were performed for 177 tanks for various scenarios.

HU TA

2009-10-26T23:59:59.000Z

132

An Experimental and Numerical Investigation of the Steady State Forces in Single Incremental Sheet Forming  

E-Print Network [OSTI]

with the prediction of the steady state forces acting on the tool during forming. Prediction of forces generated would help to design the machine against excessive vibrations. It would help the user to protect the tool and the material blank from failure. An efficient...

Nair, Mahesh

2012-10-19T23:59:59.000Z

133

NUMERICAL SIMULATION OF POOL BOILING FOR STEADY STATE AND TRANSIENT HEATING  

E-Print Network [OSTI]

1 NUMERICAL SIMULATION OF POOL BOILING FOR STEADY STATE AND TRANSIENT HEATING Ying He, Masahiro role in nucleate and transition boiling heat transfer at high heat flux. Many experiments have been in the numerical simulation of boiling heat transfer. In this study, based on the macrolayer evaporation model

Maruyama, Shigeo

134

Statistical mechanical theory for steady state systems. V. Nonequilibrium probability density  

E-Print Network [OSTI]

Statistical mechanical theory for steady state systems. V. Nonequilibrium probability density Phil is shown to be much more efficient for the thermal conductivity of a Lennard-Jones fluid than the Green probability densities for hydrodynamic transport, for time-dependent mechanical work, and for nonequilibrium

Attard, Phil

135

MODELING TRITIUM TRANSPORT IN PBLI BREEDER BLANKETS UNDER STEADY STATE , M. Abdou1  

E-Print Network [OSTI]

MODELING TRITIUM TRANSPORT IN PBLI BREEDER BLANKETS UNDER STEADY STATE H. Zhang1 , A. Ying1 , M breeder blankets under realistic reactor-like conditions in this paper. Tritium concentration. Tritium behavior in the liquid metal breeder blanket requires a thorough understanding of the sequence

Abdou, Mohamed

136

Verification of steady-state temperature predictions in an instrumented LMFBR driver subassembly  

SciTech Connect (OSTI)

Purpose of this paper is to compare the predicted steady-state coolant temperatures obtained by a thermal-hydraulic computer code with the measured coolant temperatures obtained from the instrumented LMFBR subassembly XX09 during reactor run 129C while the Experimental Breeder Reactor II (EBR-II) was essentially at full power and flow conditions.

Betten, P.R.; Feldman, E.E.; Chang, L.K.; Mohr, D.; Planchon, H.P.

1985-01-01T23:59:59.000Z

137

Steady-state operational degrees of freedom with application to refrigeration cycles  

E-Print Network [OSTI]

control of LNG plants7;8, but they consider the dynamic performance and controllability rather than operation of LNG plants has been less studied. This is a bit surprising considering the large throughputs the optimal steady-state operation. Zaim9 looked into dynamic optimization of a plant with several trains

Skogestad, Sigurd

138

PROCESS DESIGN AND CONTROL Steady-State Operational Degrees of Freedom with Application to Refrigeration  

E-Print Network [OSTI]

regarding control of LNG plants,7,8 but they consider the dynamic performance and controllability rather, that the subsequent operation of LNG plants has been less studied. This is a bit surprising considering the large than the optimal steady-state operation. Zaim9 looked into dynamic optimization of a plant with several

Skogestad, Sigurd

139

ECONOMIC COMPARISON OF MHD EQUILIBRIUM OPTIONS FOR ADVANCED STEADY STATE TOKAMAK POWER PLANTS  

E-Print Network [OSTI]

ECONOMIC COMPARISON OF MHD EQUILIBRIUM OPTIONS FOR ADVANCED STEADY STATE TOKAMAK POWER PLANTS D for commercial tokamak power plants. The economic prospects of future designs are compared for several tokamak a simplified economic model and selecting uniform engineering performance parameters, this comparison

Najmabadi, Farrokh

140

System and method for generating steady state confining current for a toroidal plasma fusion reactor  

DOE Patents [OSTI]

A system for generating steady state confining current for a toroidal plasma fusion reactor providing steady-state generation of the thermonuclear power. A dense, hot toroidal plasma is initially prepared with a confining magnetic field with toroidal and poloidal components. Continuous wave RF energy is injected into said plasma to establish a spectrum of traveling waves in the plasma, where the traveling waves have momentum components substantially either all parallel, or all anti-parallel to the confining magnetic field. The injected RF energy is phased to couple to said traveling waves with both a phase velocity component and a wave momentum component in the direction of the plasma traveling wave components. The injected RF energy has a predetermined spectrum selected so that said traveling waves couple to plasma electrons having velocities in a predetermined range .DELTA.. The velocities in the range are substantially greater than the thermal electron velocity of the plasma. In addition, the range is sufficiently broad to produce a raised plateau having width .DELTA. in the plasma electron velocity distribution so that the plateau electrons provide steady-state current to generate a poloidal magnetic field component sufficient for confining the plasma. In steady state operation of the fusion reactor, the fusion power density in the plasma exceeds the power dissipated in the plasma.

Fisch, Nathaniel J. (Cambridge, MA)

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "li-ion steady state" 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

System and method for generating steady state confining current for a toroidal plasma fusion reactor  

DOE Patents [OSTI]

A system for generating steady state confining current for a toroidal plasma fusion reactor providing steady-state generation of the thermonuclear power. A dense, hot toroidal plasma is initially prepared with a confining magnetic field with toroidal and poloidal components. Continuous wave RF energy is injected into said plasma to estalish a spectrum of traveling waves in the plasma, where the traveling waves have momentum components substantially either all parallel, or all anti-parallel to the confining magnetic field. The injected RF energy is phased to couple to said traveling waves with both a phase velocity component and a wave momentum component in the direction of the plasma traveling wave components. The injected RF energy has a predetermined spectrum selected so that said traveling waves couple to plasma electrons having velocities in a predetermined range .DELTA.. The velocities in the range are substantially greater than the thermal electron velocity of the plasma. In addition, the range is sufficiently broad to produce a raised plateau having width .DELTA. in the plasma electron velocity distribution so that the plateau electrons provide steady-state current to generate a poloidal magnetic field component sufficient for confining the plasma. In steady state operation of the fusion reactor, the fusion power density in the plasma exceeds the power dissipated inthe plasma.

Bers, Abraham (Arlington, MA)

1981-01-01T23:59:59.000Z

142

A techno-economic analysis and optimization of Li-ion batteries for light-duty passenger vehicle electrification  

E-Print Network [OSTI]

A techno-economic analysis and optimization of Li-ion batteries for light-duty passenger vehicle thickness a b s t r a c t We conduct a techno-economic analysis of Li-ion NMC-G prismatic pouch battery

McGaughey, Alan

143

Quadruple Adaptive Observer of the Core Temperature in Cylindrical Li-ion Batteries and their Health Monitoring  

E-Print Network [OSTI]

Quadruple Adaptive Observer of the Core Temperature in Cylindrical Li-ion Batteries to an effective thermal management system and to maintain safety, performance, and longevity of these Li-Ion. Dyche Anderson Abstract-- Temperature monitoring is a critical issue for lithium ion batteries. Since

Stefanopoulou, Anna

144

Adaptation of an Electrochemistry-based Li-Ion Battery Model to Account for Deterioration Observed Under Randomized Use  

E-Print Network [OSTI]

Adaptation of an Electrochemistry-based Li-Ion Battery Model to Account for Deterioration Observed). In this paper, we use an electrochemistry-based lithium ion (Li-ion) battery model developed in (Daigle, Moffett Field, CA 94035 matthew.j.daigle@nasa.gov ABSTRACT Tracking the variation in battery dynamics

Daigle, Matthew

145

In-situ raman microscopy of individual LiNi0.8Co0.15Al0.05O2 particles in the Li-ion battery composite cathode  

E-Print Network [OSTI]

2 Particles in the Li-ion Battery Composite Cathode Jingleidegradation of various Li-ion battery systems has been the

Lei, Jinglei; McLarnon, Frank; Kostecki, Robert

2004-01-01T23:59:59.000Z

146

A Model Reduction Framework for Efficient Simulation of Li-Ion Batteries  

E-Print Network [OSTI]

of degradation processes in lithium-ion batteries, the modelling of cell dynamics at the mircometer scale lithium-ion batteries is the deposition of metallic lithium at the negative battery electrode (LiA Model Reduction Framework for Efficient Simulation of Li-Ion Batteries Mario Ohlberger Stephan

147

Graphene-enhanced hybrid phase change materials for thermal management of Li-ion batteries  

E-Print Network [OSTI]

with graphene. Incorporation of graphene increases thermal conductivity of phase change materials. Graphene that common PCMs are characterized by very low thermal conductivity, K, with typical values in the range of 0Graphene-enhanced hybrid phase change materials for thermal management of Li-ion batteries

148

Electrostatic Energy Harvester and Li-Ion Charger Circuit for Micro-Scale Applications  

E-Print Network [OSTI]

, low duty-cycle task multiplex- ing, and smart power-aware networks, the energy stored in micro- scaleElectrostatic Energy Harvester and Li-Ion Charger Circuit for Micro-Scale Applications Erick O micro-systems like biomedical implants and ad-hoc wireless transceiver micro-sensors continue

Rincon-Mora, Gabriel A.

149

Studies on Capacity Fade of Spinel-Based Li-Ion Batteries Ramadass Premanand, Anand Durairajan,* Bala Haran,** Ralph White,*** and  

E-Print Network [OSTI]

Studies on Capacity Fade of Spinel-Based Li-Ion Batteries Ramadass Premanand, Anand Durairajan of South Carolina, Columbia, South Carolina 29208, USA The performance of Cell-Batt® Li-ion cells using in Mn content with cycling. These studies indicate that capacity fade of spinel-based Li-ion cells can

150

Abstract--A novel, accurate, compact, and power efficient Lith-ium-Ion (Li-Ion) battery charger designed to yield maximum  

E-Print Network [OSTI]

1 Abstract-- A novel, accurate, compact, and power efficient Lith- ium-Ion (Li-Ion) battery charger battery, linear charger, switching charger. I. INTRODUCTION ITHIUM-ION (Li-Ion) batteries are widely used of Li-Ion batteries to over-charged voltages im- poses stringent charge requirements on the design

Rincon-Mora, Gabriel A.

151

Cahn-Hilliard Reaction Model for Isotropic Li-ion Battery Particles Yi Zeng1, Martin Z. Bazant1,2  

E-Print Network [OSTI]

Cahn-Hilliard Reaction Model for Isotropic Li-ion Battery Particles Yi Zeng1, Martin Z. Bazant1,2 1 particle. This general approach extends previous Li-ion battery models, which either neglect phase theory for Li-ion batteries [13, 18] with Butler-Volmer kinetics and concentration depen- dent

Bazant, Martin Z.

152

Exponential approach to, and properties of, a non-equilibrium steady state in a dilute gas  

E-Print Network [OSTI]

We investigate a kinetic model of a system in contact with several thermal reservoirs at different temperatures $T_\\alpha$. Our system is a spatially uniform dilute gas whose internal dynamics is described by the nonlinear Boltzmann equation with Maxwellian collisions. Similarly, the interaction with reservoir $\\alpha$ is represented by a Markovian process that has the Maxwellian $M_{T_\\alpha}$ as its stationary state. We prove existence and uniqueness of a non-equilibrium steady state (NESS) and show exponential convergence to this NESS in a metric on probability measures introduced into the study of Maxwellian collisions by Gabetta, Toscani and Wenberg (GTW). This shows that the GTW distance between the current velocity distribution to the steady-state velocity distribution is a Lyapunov functional for the system. We also derive expressions for the entropy production in the system plus the reservoirs which is always positive.

Eric A. Carlen; Joel L. Lebowitz; Clement Mouhot

2014-06-16T23:59:59.000Z

153

Optimal Strategic Petroleum Reserve Policies: A Steady State Analysis Author(s): Shmuel S. Oren and Shao Hong Wan  

E-Print Network [OSTI]

Optimal Strategic Petroleum Reserve Policies: A Steady State Analysis Author(s): Shmuel S. Oren.S.A. OPTIMAL STRATEGIC PETROLEUM RESERVE POLICIES: A STEADY STATE ANALYSIS* SHMUEL S. OREN AND SHAO HONG WAN Petroleum Reserve (SPR) under a variety of supply and demand conditions. The optimal policy variables

Oren, Shmuel S.

154

Quantitative broadband absorption and scattering spectroscopy in turbid media by combined frequency-domain and steady state methodologies  

DOE Patents [OSTI]

A technique for measuring broadband near-infrared absorption spectra of turbid media that uses a combination of frequency-domain and steady-state reflectance methods. Most of the wavelength coverage is provided by a white-light steady-state measurement, whereas the frequency-domain data are acquired at a few selected wavelengths. Coefficients of absorption and reduced scattering derived from the frequency-domain data are used to calibrate the intensity of the steady-state measurements and to determine the reduced scattering coefficient at all wavelengths in the spectral window of interest. The absorption coefficient spectrum is determined by comparing the steady-state reflectance values with the predictions of diffusion theory, wavelength by wavelength. Absorption spectra of a turbid phantom and of human breast tissue in vivo, derived with the combined frequency-domain and steady-state technique, agree well with expected reference values.

Tromberg, Bruce J. (Irvine, CA); Berger, Andrew J. (Rochester, NY); Cerussi, Albert E. (Lake Forest, CA); Bevilacqua, Frederic (Costa Mesa, CA); Jakubowski, Dorota (Irvine, CA)

2008-09-23T23:59:59.000Z

155

A Conductivity Relationship for Steady-state Unsaturated Flow Processes under Optimal Flow Conditions  

SciTech Connect (OSTI)

Optimality principles have been used for investigating physical processes in different areas. This work attempts to apply an optimal principle (that water flow resistance is minimized on global scale) to steady-state unsaturated flow processes. Based on the calculus of variations, we show that under optimal conditions, hydraulic conductivity for steady-state unsaturated flow is proportional to a power function of the magnitude of water flux. This relationship is consistent with an intuitive expectation that for an optimal water flow system, locations where relatively large water fluxes occur should correspond to relatively small resistance (or large conductance). Similar results were also obtained for hydraulic structures in river basins and tree leaves, as reported in other studies. Consistence of this theoretical result with observed fingering-flow behavior in unsaturated soils and an existing model is also demonstrated.

Liu, H. H.

2010-09-15T23:59:59.000Z

156

Control of unstable steady states by extended time-delayed feedback  

E-Print Network [OSTI]

Time-delayed feedback methods can be used to control unstable periodic orbits as well as unstable steady states. We present an application of extended time delay autosynchronization introduced by Socolar et al. to an unstable focus. This system represents a generic model of an unstable steady state which can be found for instance in a Hopf bifurcation. In addition to the original controller design, we investigate effects of control loop latency and a bandpass filter on the domain of control. Furthermore, we consider coupling of the control force to the system via a rotational coupling matrix parametrized by a variable phase. We present an analysis of the domain of control and support our results by numerical calculations.

Thomas Dahms; Philipp Hoevel; Eckehard Schoell

2007-08-01T23:59:59.000Z

157

Robust random number generation using steady-state emission of gain-switched laser diodes  

SciTech Connect (OSTI)

We demonstrate robust, high-speed random number generation using interference of the steady-state emission of guaranteed random phases, obtained through gain-switching a semiconductor laser diode. Steady-state emission tolerates large temporal pulse misalignments and therefore significantly improves the interference quality. Using an 8-bit digitizer followed by a finite-impulse-response unbiasing algorithm, we achieve random number generation rates of 8 and 20?Gb/s, for laser repetition rates of 1 and 2.5?GHz, respectively, with a ±20% tolerance in the interferometer differential delay. We also report a generation rate of 80?Gb/s using partially phase-correlated short pulses. In relation to the field of quantum key distribution, our results confirm the gain-switched laser diode as a suitable light source, capable of providing phase-randomized coherent pulses at a clock rate of up to 2.5?GHz.

Yuan, Z. L., E-mail: zhiliang.yuan@crl.toshiba.co.uk; Lucamarini, M.; Dynes, J. F.; Fröhlich, B.; Plews, A.; Shields, A. J. [Toshiba Research Europe Limited, Cambridge Research Laboratory, 208 Cambridge Science Park, Milton Road, Cambridge CB4 0GZ (United Kingdom)

2014-06-30T23:59:59.000Z

158

A fully implicit method for 3D quasi-steady state magnetic advection-diffusion.  

SciTech Connect (OSTI)

We describe the implementation of a prototype fully implicit method for solving three-dimensional quasi-steady state magnetic advection-diffusion problems. This method allows us to solve the magnetic advection diffusion equations in an Eulerian frame with a fixed, user-prescribed velocity field. We have verified the correctness of method and implementation on two standard verification problems, the Solberg-White magnetic shear problem and the Perry-Jones-White rotating cylinder problem.

Siefert, Christopher; Robinson, Allen Conrad

2009-09-01T23:59:59.000Z

159

Multiple steady states during reactive distillation of methyl tert-butyl ether  

SciTech Connect (OSTI)

This paper presents results of computer simulations of the synthesis of methyl tert-butyl ether (MTBE) in a fixed-bed reactor and in a reactive distillation column. These calculations clearly showed the advantages of MTBE synthesis in a catalytic distillation tower. Furthermore, the computer simulations showed that multiple steady states may occur in the reactive distillation column during MTBE synthesis in a broad range of operating conditions. An analysis of some sensitivity studies is presented.

Nijhuis, S.A. (Univ. of Amsterdam (Netherlands). Chemical Engineering Dept.); Kerkhof, F.P.J.M.; Mak, A.N.S. (Comprimo Engineers and Contractors, Amsterdam (Netherlands))

1993-11-01T23:59:59.000Z

160

Arc plasma generator of atomic driver for steady-state negative ion source  

SciTech Connect (OSTI)

The paper reviews the results of development of steady-state arc-discharge plasma generator with directly heated LaB{sub 6} cathode. This arc-discharge plasma generator produces a plasma jet which is to be converted into an atomic one after recombination on a metallic plate. The plate is electrically biased relative to the plasma in order to control the atom energies. Such an intensive jet of hydrogen atoms can be used in negative ion sources for effective production of negative ions on a cesiated surface of plasma grid. All elements of the plasma generator have an augmented water cooling to operate in long pulse mode or in steady state. The thermo-mechanical stresses and deformations of the most critical elements of the plasma generator were determined by simulations. Magnetic field inside the discharge chamber was optimized to reduce the local power loads. The first tests of the steady-state arc plasma generator prototype have performed in long-pulse mode.

Ivanov, A. A.; Belchenko, Yu. I.; Davydenko, V. I. [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation) [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation); Novosibirsk State University, Novosibirsk (Russian Federation); Ivanov, I. A.; Kolmogorov, V. V.; Listopad, A. A., E-mail: a.a.listopad@inp.nsk.su; Mishagin, V. V.; Shulzhenko, G. I. [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation)] [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation); Putvinsky, S. V.; Smirnov, A. [Tri Alpha Energy Inc., Rancho Santa Margarita, California 92688 (United States)] [Tri Alpha Energy Inc., Rancho Santa Margarita, California 92688 (United States)

2014-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "li-ion steady state" from the National Library of EnergyBeta (NLEBeta).
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161

Lower bounds for ballistic current and noise in non-equilibrium quantum steady states  

E-Print Network [OSTI]

Let an infinite, homogeneous, many-body quantum system be unitarily evolved for a long time from a state where two halves are independently thermalized. One says that a non-equilibrium steady state emerges if there are nonzero steady currents in the central region. In particular, their presence is a signature of ballistic transport. We analyze the consequences of the current observable being a conserved density; near equilibrium this is known to give rise to linear wave propagation and a nonzero Drude peak. Using the Lieb-Robinson bound, we derive, under a certain regularity condition, a lower bound for the non-equilibrium steady-state current determined by equilibrium averages. This shows and quantifies the presence of ballistic transport far from equilibrium. The inequality suggests the definition of "nonlinear sound velocities", which specialize to the sound velocity near equilibrium in non-integrable models, and "generalized sound velocities", which encode generalized Gibbs thermalization in integrable models. These are bounded by the Lieb-Robinson velocity. The inequality also gives rise to a bound on the energy current noise in the case of pure energy transport. We show that the inequality is satisfied in many models where exact results are available, and that it is saturated at one-dimensional criticality.

Benjamin Doyon

2014-10-01T23:59:59.000Z

162

Arsenic (+ 3 oxidation state) methyltransferase genotype affects steady-state distribution and clearance of arsenic in arsenate-treated mice  

SciTech Connect (OSTI)

Arsenic (+ 3 oxidation state) methyltransferase (As3mt) catalyzes formation of mono-, di-, and tri-methylated metabolites of inorganic arsenic. Distribution and retention of arsenic were compared in adult female As3mt knockout mice and wild-type C57BL/6 mice using a regimen in which mice received daily oral doses of 0.5 mg of arsenic as arsenate per kilogram of body weight. Regardless of genotype, arsenic body burdens attained steady state after 10 daily doses. At steady state, arsenic body burdens in As3mt knockout mice were 16 to 20 times greater than in wild-type mice. During the post dosing clearance period, arsenic body burdens declined in As3mt knockout mice to {approx} 35% and in wild-type mice to {approx} 10% of steady-state levels. Urinary concentration of arsenic was significantly lower in As3mt knockout mice than in wild-type mice. At steady state, As3mt knockout mice had significantly higher fractions of the body burden of arsenic in liver, kidney, and urinary bladder than did wild-type mice. These organs and lung had significantly higher arsenic concentrations than did corresponding organs from wild-type mice. Inorganic arsenic was the predominant species in tissues of As3mt knockout mice; tissues from wild-type mice contained mixtures of inorganic arsenic and its methylated metabolites. Diminished capacity for arsenic methylation in As3mt knockout mice prolongs retention of inorganic arsenic in tissues and affects whole body clearance of arsenic. Altered retention and tissue tropism of arsenic in As3mt knockout mice could affect the toxic or carcinogenic effects associated with exposure to this metalloid or its methylated metabolites.

Hughes, Michael F.; Edwards, Brenda C.; Herbin-Davis, Karen M. [Pharmacokinetics Branch, Integrated Systems Toxicology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC 27711 (United States); Saunders, Jesse; Styblo, Miroslav [Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 (United States); Thomas, David J., E-mail: thomas.david@epa.gov [Pharmacokinetics Branch, Integrated Systems Toxicology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC 27711 (United States)

2010-12-15T23:59:59.000Z

163

Vehicle Technologies Office Merit Review 2014: Advanced High Energy Li-Ion Cell for PHEV and EV Applications  

Broader source: Energy.gov [DOE]

Presentation given by 3M at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced high energy Li-ion cell for PHEV...

164

Synthesis, Characterization and Testing of Novel Anode and Cathode Materials for Li-Ion Batteries  

SciTech Connect (OSTI)

During this program we have synthesized and characterized several novel cathode and anode materials for application in Li-ion batteries. Novel synthesis routes like chemical doping, electroless deposition and sol-gel method have been used and techniques like impedance, cyclic voltammetry and charge-discharge cycling have been used to characterize these materials. Mathematical models have also been developed to fit the experimental result, thus helping in understanding the mechanisms of these materials.

White, Ralph E.; Popov, Branko N.

2002-10-31T23:59:59.000Z

165

Nanostructured ion beam-modified Ge films for high capacity Li ion battery anodes  

SciTech Connect (OSTI)

Nanostructured ion beam-modified Ge electrodes fabricated directly on Ni current collector substrates were found to exhibit excellent specific capacities during electrochemical cycling in half-cell configuration with Li metal for a wide range of cycling rates. Structural characterization revealed that the nanostructured electrodes lose porosity during cycling but maintain excellent electrical contact with the metallic current collector substrate. These results suggest that nanostructured Ge electrodes have great promise for use as high performance Li ion battery anodes.

Rudawski, N. G.; Darby, B. L.; Yates, B. R.; Jones, K. S. [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611-6400 (United States); Elliman, R. G. [Department of Electronic Materials Engineering, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 0200 (Australia); Volinsky, A. A. [Department of Mechanical Engineering, University of South Florida, Tampa Florida 33620 (United States)

2012-02-20T23:59:59.000Z

166

Transition dynamics between the multiple steady states in natural ventilation systems : from theories to applications in optimal controls  

E-Print Network [OSTI]

In this study, we investigated the multiple steady state behavior, an important observation in numerical and experimental studies in natural ventilation systems. The-oretical models are developed and their applications in ...

Yuan, Jinchao

2007-01-01T23:59:59.000Z

167

Steady state temperature profiles in two simulated liquid metal reactor fuel assemblies with identical design specifications  

SciTech Connect (OSTI)

Temperature data from steady state tests in two parallel, simulated liquid metal reactor fuel assemblies with identical design specifications have been compared to determine the extent to which they agree. In general, good agreement was found in data at low flows and in bundle-center data at higher flows. Discrepancies in the data wre noted near the bundle edges at higher flows. An analysis of bundle thermal boundary conditions showed that the possible eccentric placement of one bundle within the housing could account for these discrepancies.

Levin, A.E.; Carbajo, J.J.; Lloyd, D.B.; Montgomery, B.H.; Rose, S.D.; Wantland, J.L.

1985-01-01T23:59:59.000Z

168

Application of functional transformations in the solution of steady-state distillation problems  

E-Print Network [OSTI]

of Criteria Calculational Procedure and Discussion 117 118 121 B QUADRATIC CONVERGENCE OF ITERATES USING FUNCTIONIAL TRANSFORMATION IMBEDDED IN NEWTON"S MLTHOD 127 C FORMULATION OF MATHEMATICAL MODELS USED IN THE EXAMPI. E PROBLEMS Problem 1 ? A... 7). Comparison of initial (iterate) vapor rate of nCcH?at each stage ivith the steady-state solution vapor rate of nCcHis at each stage for Lx =50 lb-moles/min (Examp)e 7). 30 54 55 10. ]2. 13. Comparison of initial (iterate) temperature...

McLaughlin, Blaise Edward

2012-06-07T23:59:59.000Z

169

High current, low emittance, steady state electron guns with plasma cathodes  

SciTech Connect (OSTI)

Major limitations of plasma cathodes have been overcome in an electron gun based on extraction of superthermal electrons with a low thermal spread. A grid is employed to select these electrons for extraction while retaining the bulk electrons in the discharge. Steady state extraction of electron beams corresponding to over 60% of the total arc discharge current has been observed. A perveance of over 280 microperv was reached with the extraction of 9A at 1KeV from a 6 mm aperture. Some of the characteristics of the electron gun described in this paper are very attractive for electron beam melting.

Herschovitch, A. [Brookhaven National Laboratory, Upton, NY (United States)

1995-12-31T23:59:59.000Z

170

Two-Phase Flow in Porous Media: Scaling of Steady-State Effective Permeability  

E-Print Network [OSTI]

A recent experiment has considered the effective permeability of two-phase flow of air and a water-glycerol solution under steady-state conditions in a two-dimensional model porous medium, and found a power law dependence with respect to capillary number. Running simulations on a two-dimensional network model a similar power law is found, for high viscosity contrast as in the experiment and also for viscosity matched fluids. Two states are found, one with stagnant clusters and one without. For the stagnant cluster state, a power law exponent 0.50 is found for viscosity matched fluids and 0.54 for large viscosity contrast. When there are no stagnant clusters the exponent depends on saturation and varies within the range of 0.67 - 0.80.

Grøva, Morten

2012-01-01T23:59:59.000Z

171

Two-Phase Flow in Porous Media: Scaling of Steady-State Effective Permeability  

E-Print Network [OSTI]

A recent experiment has considered the effective permeability of two-phase flow of air and a water-glycerol solution under steady-state conditions in a two-dimensional model porous medium, and found a power law dependence with respect to capillary number. Running simulations on a two-dimensional network model a similar power law is found, for high viscosity contrast as in the experiment and also for viscosity matched fluids. Two states are found, one with stagnant clusters and one without. For the stagnant cluster state, a power law exponent 0.50 is found for viscosity matched fluids and 0.54 for large viscosity contrast. When there are no stagnant clusters the exponent depends on saturation and varies within the range of 0.67 - 0.80.

Morten Grøva

2012-01-23T23:59:59.000Z

172

Steady-State Homogeneous Nucleation and Growth of Water Droplets: Extended Numerical Treatment  

E-Print Network [OSTI]

The steady-state homogeneous vapor-to-liquid nucleation and the succeeding liquid droplet growth process are studied for water system by means of the coarse-grained molecular dynamics simulations with the mW-model suggested originally in [Molinero, V.; Moore, E. B. \\textit{J. Phys. Chem. B} \\textbf{2009}, \\textit{113}, 4008-4016]. The investigation covers the temperature range $273 \\leq T/K \\leq 363$ and the system's pressure $p\\simeq 1$ atm. The thermodynamic integration scheme and the extended mean first passage time method as a tool to find the nucleation and cluster growth characteristics are applied. The surface tension is numerically estimated and is compared with the experimental data for the considered temperature range. We extract the nucleation characteristics such as the steady-state nucleation rate, the critical cluster size, the nucleation barrier, the Zeldovich factor; perform the comparison with the other simulation results and test the treatment of the simulation results within the classical nucleation theory. We found that the liquid droplet growth is unsteady and follows the power law. At that, the growth laws exhibit the features unified for all the considered temperatures. The geometry of the nucleated droplets is also studied.

Anatolii V. Mokshin; Bulat N. Galimzyanov

2012-10-02T23:59:59.000Z

173

Steady-State Homogeneous Nucleation and Growth of Water Droplets: Extended Numerical Treatment  

E-Print Network [OSTI]

The steady-state homogeneous vapor-to-liquid nucleation and the succeeding liquid droplet growth process are studied for water system by means of the coarse-grained molecular dynamics simulations with the mW-model suggested originally in [Molinero, V.; Moore, E. B. \\textit{J. Phys. Chem. B} \\textbf{2009}, \\textit{113}, 4008-4016]. The investigation covers the temperature range $273 \\leq T/K \\leq 363$ and the system's pressure $p\\simeq 1$ atm. The thermodynamic integration scheme and the extended mean first passage time method as a tool to find the nucleation and cluster growth characteristics are applied. The surface tension is numerically estimated and is compared with the experimental data for the considered temperature range. We extract the nucleation characteristics such as the steady-state nucleation rate, the critical cluster size, the nucleation barrier, the Zeldovich factor; perform the comparison with the other simulation results and test the treatment of the simulation results within the classical n...

Mokshin, Anatolii V; 10.1021/jp304830e

2012-01-01T23:59:59.000Z

174

Cyclic steady state performance of adsorption chiller with low regeneration temperature zeolite  

SciTech Connect (OSTI)

Adsorption chillers are capable of utilizing inexpensive or free low grade thermal energy such as waste heat and concentrated solar thermal energy. Recently developed low regeneration temperature working pairs allow adsorption chillers to be driven by even lower temperature sources such as engine coolant and flat plate solar collectors. In this work, synthetic zeolite/water was implemented into a 3kW adsorption chiller test facility driven by hot water at 70 C. The zeolite was coated onto two fin-and-tube heat exchangers, with heat recovery employed between the two. Cyclic steady state parametric studies were experimentally conducted to evaluate the chiller's performance, resulting in a cooling coefficient of performance (COP) ranging from 0.1 to 0.6 at different operating conditions. Its performance was compared with published values for other low regeneration temperature working pairs. The physical limitations of the synthetic zeolite revealed by parametric study results were then discussed. A novel operating control strategy was proposed based on the unique characteristics of synthetic zeolite. In addition, a physics-based COP prediction model was derived to predict the performance of the chiller under equilibrium loading, and was validated by the experiment results. This analytical expression can be used to estimate the cyclic steady state performance for future studies.

Qian, Mr. Suxin [University of Maryland, College Park; Gluesenkamp, Kyle R [ORNL; Hwang, Dr. Yunho [University of Maryland, College Park; Radermacher, Reinhard [University of Maryland, College Park; Chun, Mr. Ho-Hwan [University of Maryland, College Park

2013-01-01T23:59:59.000Z

175

Development of steady-state operation using ICH in the LHD  

SciTech Connect (OSTI)

Long-pulse discharge with the electron density n{sub e0} of 1 × 10{sup 19} m{sup ?3}, electron temperature T{sub e0} of 2.5 keV, discharge length t{sub dis} of 19 minutes and heating power P{sub inject} of 1MW, is demonstrated using the HAS antenna and the PA antenna for ion cyclotron heating (ICH) and increasing in the power of electron cyclotron heating (ECH). The HAS antenna is designed to phase dipole and excite ideal fast wave with parallel electric field kept small, and low impurity generation and accumulation are achieved on the steady-state discharge by weak parasitic heating around antennas. On the long-pulse discharge, the radiation measured by bolometer is kept smaller than 20% for injection power, and the heat load to divertor is approximately 60 % with low energetic particle losses. The heat load ratio to divertor is not as a function of injection power around 1MW, and energy confinement has been kept during the steady-state discharge.

Kasahara, H.; Seki, T.; Saito, K.; Seki, R.; Yoshimura, Y.; Kubo, S.; Shimozuma, T.; Igami, H.; Takahashi, H.; Tokitani, M.; Ashikawa, N.; Shoji, M.; Kamio, S.; Tsuchiya, H.; Tanaka, H.; Yoshimura, S.; Tamura, N.; Yamada, I.; Suzuki, C.; Mutoh, T. [National Institute for Fusion Science, Toki (Japan); and others

2014-02-12T23:59:59.000Z

176

Comparison of steady-state and transient CVS cycle emissions of an automotive Stirling engine  

SciTech Connect (OSTI)

One of the goals of the Automotive Stirling Engine Development Program, sponsored by the Department of Energy and managed by NASA/Lewis Research Center, is to develop a rationale for predicting transient CVS cycle emissions from steady-state engine data. A technique is developed that integrates engine emissions as a function of fuel flow over a modelled CVS cycle to predict vehicle urban cycle results. Steady-state emissions data from three Mod I engines* burning unleaded gasoline are used to predict vehicle NO /SUB x/, CO, and HC emissions. A total of 155 data points representing variations in engine power, excess air (lambda), and the exhaust gas recirculation (EGR) schedule are utilized. Predictions are then compared to the results of nine urban CVS cycle tests of the Mod I/Lerma vehicle, and a conclusion is reached that very accurate predictions of vehicle NO /SUB x/ emissions are possible. CO and HC emissions are considerably higher than predicted due to extreme sensitivity of CO emissions to Lambda, the effect of heater head temperature, and failure of the engine to accurately reflect emissions during start-up.

Farrell, R.A.; Bolton, R.J.

1983-10-01T23:59:59.000Z

177

Selection of Steady-State Process Simulation Software to Optimize Treatment of Radioactive and Hazardous Waste  

SciTech Connect (OSTI)

The process used for selecting a steady-state process simulator under conditions of high uncertainty and limited time is described. Multiple waste forms, treatment ambiguity, and the uniqueness of both the waste chemistries and alternative treatment technologies result in a large set of potential technical requirements that no commercial simulator can totally satisfy. The aim of the selection process was two-fold. First, determine the steady-state simulation software that best, albeit not completely, satisfies the requirements envelope. And second, determine if the best is good enough to justify the cost. Twelve simulators were investigated with varying degrees of scrutiny. The candidate list was narrowed to three final contenders: ASPEN Plus 10.2, PRO/II 5.11, and CHEMCAD 5.1.0. It was concluded from ''road tests'' that ASPEN Plus appears to satisfy the project's technical requirements the best and is worth acquiring. The final software decisions provide flexibility: they involve annual rather than multi-year licensing, and they include periodic re-assessment.

Nichols, T. T.; Barnes, C. M.; Lauerhass, L.; Taylor, D. D.

2001-06-01T23:59:59.000Z

178

Natural equilibria in steady-state neutron diffusion with temperature feedback  

SciTech Connect (OSTI)

The critical diffusion equation with feedback is investigated within the context of steady-state multiphysics. It is proposed that for critical configurations there is no need to include the multiplication factor k in the formulation of the diffusion equation. This is notable because exclusion of k from the coupled system of equations precludes the mathematically tenuous notion of a nonlinear eigenvalue problem. On the other hand, it is shown that if the factor k is retained in the diffusion equation, as is currently common practice, then the resulting problem is equivalent to the constrained minimization of a functional representing the critical equilibrium of neutron and temperature distributions. The unconstrained solution corresponding to k = 1 represents the natural equilibrium of a critical system at steady-state. Computational methods for solving the constrained problem (with k) are briefly reviewed from the literature and a method for the unconstrained problem (without k) is outlined. A numerical example is studied to examine the effects of the constraint in the nonlinear system. (authors)

Pounders, J. M.; Ingram, R. [Bettis Atomic Power Laboratory, P.O. Box 79, West Mifflin, PA 15122-0079 (United States)

2013-07-01T23:59:59.000Z

179

Li ion Motors Corp formerly EV Innovations Inc | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place:Keystone CleanLaton,LearnLeupp SchoolLewisville is aLi-ion

180

High current, low emittance, steady state electron guns with plasma cathodes  

SciTech Connect (OSTI)

Major limitations of plasma cathodes have been overcome in an electron gun based on extraction of superthermal electrons from a discharge characterized by a large component of high energy electrons with a low thermal spread. A grid is employed to select these electrons for extraction while retaining the bulk electrons in the discharge. Steady state extraction of electron beams corresponding to over 60% of the total arc discharge current has been observed. A perveance of over 280 microperv was reached with the extraction of 9A at 1 keV from a 6 nun aperture. Some of the characteristics of the electron beam described in this paper are very attractive for electron beam melting.

Hershcovitch, A.

1995-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "li-ion steady state" 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

Thermodynamic Expression for Nonequilibrium Steady-State Distribution of Macroscopic Observables  

E-Print Network [OSTI]

A longstanding goal of nonequilibrium statistical mechanics has been to extend the conceptual power of the Boltzmann distribution to driven systems. We report some new progress towards this goal. We first derive an expression for the probability distribution of a macroscopic observable in a generic driven steady state, in terms of the statistics of work done on the system by the external driving fields. By comparison with a simulation of a sheared Brownian colloid, we then provide evidence that a simplified form of this distribution can closely approximate the behavior of real systems arbitrarily far from equilibrium. This simplified form has a straightforward thermodynamic interpretation, which we explain in detail for the case of the sheared colloid. We also discuss the general circumstances in which we expect this approximation to be valid, and suggest some further tests for the new formalism.

Marsland, Robert

2015-01-01T23:59:59.000Z

182

Approximate semi-analytical solutions for the steady-state expansion of a contactor plasma  

E-Print Network [OSTI]

We study the steady-state expansion of a collisionless, electrostatic, quasi-neutral plasma plume into vacuum, with a fluid model. We analyze approximate semi-analytical solutions, that can be used in lieu of much more expensive numerical solutions. In particular, we focus on the earlier studies presented in Parks and Katz (1979), Korsun and Tverdokhlebova (1997), and Ashkenazy and Fruchtman (2001). By calculating the error with respect to the numerical solution, we can judge the range of validity for each solution. Moreover, we introduce a generalization of earlier models that has a wider range of applicability, in terms of plasma injection profiles. We conclude by showing a straightforward way to extend the discussed solutions to the case of a plasma plume injected with non-null azimuthal velocity.

Camporeale, E; MacDonald, E A

2015-01-01T23:59:59.000Z

183

Steady states and linear stability analysis of precipitation pattern formation at geothermal hot springs  

E-Print Network [OSTI]

A dynamical theory of geophysical precipitation pattern formation is presented and applied to irreversible calcium carbonate (travertine) deposition. Specific systems studied here are the terraces and domes observed at geothermal hot springs, such as those at Yellowstone National Park, and speleothems, particularly stalactites and stalagmites. The theory couples the precipitation front dynamics with shallow water flow, including corrections for turbulent drag and curvature effects. In the absence of capillarity and with a laminar flow profile, the theory predicts a one-parameter family of steady state solutions to the moving boundary problem describing the precipitation front. These shapes match well the measured shapes near the vent at the top of observed travertine domes. Closer to the base of the dome, the solutions deviate from observations, and circular symmetry is broken by a fluting pattern, which we show is associated with capillary forces causing thin film break-up. We relate our model to that recent...

Chan, Pak Yuen

2007-01-01T23:59:59.000Z

184

Steady State Microbunching for High Brilliance and High Repetition Rate Storage Ring-Based Light Sources  

SciTech Connect (OSTI)

Electron-based light sources have proven to be effective sources of high brilliance, high frequency radiation. Such sources are typically either linac-Free Electron Laser (FEL) or storage ring types. The linac-FEL type has high brilliance (because the beam is microbunched) but low repetition rate. The storage ring type has high repetition rate (rapid beam circulation) but comparatively low brilliance or coherence. We propose to explore the feasibility of a microbunched beam in a storage ring that promises high repetition rate and high brilliance. The steady-state-micro-bunch (SSMB) beam in storage ring could provide CW sources for THz, EUV, or soft X-rays. Several SSMB mechanisms have been suggested recently, and in this report, we review a number of these SSMB concepts as promising directions for high brilliance, high repetition rate light sources of the future. The trick of SSMB lies in the RF system, together with the associated synchrotron beam dynamics, of the storage ring. Considering various different RF arrangements, there could be considered a number of scenarios of the SSMB. In this report, we arrange these scenarios more or less in order of the envisioned degree of technical challenge to the RF system, and not in the chronological order of their original references. Once the stored beam is steady-state microbunched in a storage ring, it passes through a radiator repeatedly every turn (or few turns). The radiator extracts a small fraction of the beam energy as coherent radiation with a wavelength corresponding to the microbunched period of the beam. In contrast to an FEL, this radiator is not needed to generate the microbunching (as required e.g. by SASE FELs or seeded FELs), so the radiator can be comparatively simple and short.

Chao, Alex; Ratner, Daniel; /SLAC; Jiao, Yi; /Beijing, Inst. High Energy Phys.

2012-09-06T23:59:59.000Z

185

392 IEEE TRANSACTIONS ON ELECTRON DEVICES. VOL. 38. NO. 2. FEBRUARY 1991 Numerical Simulation of a Steady-State Electron  

E-Print Network [OSTI]

392 IEEE TRANSACTIONS ON ELECTRON DEVICES. VOL. 38. NO. 2. FEBRUARY 1991 Numerical Simulation of a Steady-State Electron Shock Wave in a Submicrometer Semiconductor Device Carl L. Gardner Abstract-state electron shock wave in a semicon- ductor device are presented, using the hydrodynamic model

Gardner, Carl

186

Probing the Degradation Mechanisms in Electrolyte Solutions for Li-ion Batteries by In-Situ Transmission Electron Microscopy  

SciTech Connect (OSTI)

One of the goals in the development of new battery technologies is to find new electrolytes with increased electrochemical stability. In-situ (scanning) transmission electron microscopy ((S)TEM) using an electrochemical fluid cell provides the ability to rapidly and directly characterize electrode/electrolyte interfacial reactions under battery relevant electrochemical conditions. Furthermore, as the electron beam itself causes a localized electrochemical reaction when it interacts with the electrolyte, the breakdown products that occur during the first stages of battery operation can potentially be simulated and characterized using a straightforward in-situ liquid stage (without electrochemical biasing capabilities). In this paper, we have studied the breakdown of a range of inorganic/salt complexes that are used in state-of-the-art Li-ion battery systems. The results of the in-situ (S)TEM experiments matches with previous stability tests performed during battery operation and the breakdown products and mechanisms are also consistent with known mechanisms. This analysis indicates that in-situ liquid stage (S)TEM observations can be used to directly test new electrolyte designs and provide structural insights into the origin of the solid electrolyte interphase (SEI) formation mechanism.

Abellan Baeza, Patricia; Mehdi, Beata L.; Parent, Lucas R.; Gu, Meng; Park, Chiwoo; Xu, Wu; Zhang, Yaohui; Arslan, Ilke; Zhang, Jiguang; Wang, Chong M.; Evans, James E.; Browning, Nigel D.

2014-02-21T23:59:59.000Z

187

On the mechanisms of switching between two steady states of electroconductivity in plasticized transparent PVC films  

E-Print Network [OSTI]

The results of experimental researches of electroconductivity of PVC films, plasticized by patented modifier, at fields below the breakdown level are described. A possibility of management of the repeated transitions between two states with high and relatively low conductivity with conservation of reversibility is found out. A simple qualitative model of abnormal conductivity based on representation of polymer film as a sequence p-n of transitions is offered. For samples of plasticized PVC films with thickness 30-50 microns specific volume resistance of steady states was of an order of 10E4 Om*m \\times 10E6 Om*m, accordingly. A simple qualitative model describing abnormal character of conductivity of polymeric films is offered. The model considers the presence of known non-uniform plasticized polymer structure with discrete domains in which quasi-free moving of charges can occur. At imposing of an external field semi-condictive domains form sequence of p-n transitions which provides presence of two states of conductivity, in analogy with dinistors.

D. V. Vlasov; L. A. Apresian; V. I. Krystob; T. V. Vlasova

2010-03-29T23:59:59.000Z

188

The determination of neutron flux in the Texas A & M triga reactor during pulse and steady-state operations  

E-Print Network [OSTI]

-state operation. Neutron flux measurement during a pulse presents an additional problem in that the flux levels vary during the rapid rise and fall in reactor power. The power level transient of the reactor was followed, using the current output of a boron-10... as a flux monitor only at low power. levels or neutron fluxes. The antimony flux monitor in the steady-state flux measurement showed the same type of increase in flux magni- tude as that of the pulse measurement. The high flux values at steady...

O'Donnell, John Joseph

2012-06-07T23:59:59.000Z

189

TiSnSb a new efficient negative electrode for Li-ion batteries: mechanism investigations by operando-XRD and Mossbauer techniques  

E-Print Network [OSTI]

TiSnSb a new efficient negative electrode for Li-ion batteries: mechanism investigations We report the electrochemical study of TiSnSb towards Li, as a negative electrode for Li-ion batteries. TiSnSb can reversibly take up more than 5 lithiums per formula unit leading to reversible

Boyer, Edmond

190

Measurement and Modelling of Tearing Mode Stability for Steady-State Plasmas in DIII-D  

SciTech Connect (OSTI)

High-beta, quasi-steady state scenarios represent a fundamental step towards the performance required for future fusion reactors. In DIII-D steady-state scenario discharges, the normalized beta {beta}{sub N} {triple_bond} {beta}(%) {center_dot} a(m) {center_dot} B{sub T}(T)/I{sub p}(MA) (where {beta} is the ratio of the plasma pressure to the magnetic field pressure, {alpha} the plasma minor radius, B{sub T} the toroidal magnetic field and I{sub p} the plasma current) exceeds the no-wall ideal kink beta limit. The performance of this scenario is limited by the onset of an n = 1 tearing mode, which appears on the resistive evolution time-scale (1-2 s) at constant pressure and causes both a loss of confinement and a radial redistribution of the current density from which the available current drive sources cannot recover. It is routinely observed that the injection of electron cyclotron current drive (ECCD), with a broad deposition localized around {rho} {approx} 0.35, can prevent the mode from appearing. It must be noted that this is not a case of a direct stabilization due to the interaction with the mode's rational surface. These variations of the scenario are illustrated in Fig. 1, where the total injected power [neutral beam injection (NBI) and ECCD], {beta}{sub N} and the n = 1 magnetic perturbation at the outer wall are shown. In case (a), the onset of the n = 1 mode is observed when the EC power is not present or if it is stopped before the end of the high {beta} phase, whereas in case (b) the difference is pointed out between broad and narrow current deposition (with the narrow deposition case becoming unstable). The current density profile evolution and the MHD modes of several sets of significant discharges with and without ECCD (at different locations) have been analyzed, using motional Stark effect (MSE) spectroscopy measurements for the former and edge magnetic probes measurements, toroidal rotation profiles and fast electron cyclotron emission (ECE) data for the latter. One equilibrium based on EFIT reconstruction [1] with kinetic data has been perturbed by adding local current density at a specific radius, mimicking the application of EC waves, and the changes in the stability for a sequence of equilibria with the current perturbed at various radii, have been evaluated by means of the DCON [2], GATO [3] and PEST3 [4] codes.

Turco, F; Luce, T; Ferron, J; Petty, C; Politzer, P; Turnbull, A; Brennan, D; Murakami, M; LoDestro, L; Pearlstein, L; Casper, T; Jayakumar, R; Holcomb, C

2009-06-23T23:59:59.000Z

191

Journal of Environmental Economics and Management 54 (2007) 6883 Steady-state growth in a Hotelling model of resource extraction  

E-Print Network [OSTI]

remained zero over a long period of time. We use data on 14 minerals from 1970 to 2004 to estimate is a steady-state consistent with the empirical observation that the growth rates of market prices have prices 1. Introduction The basic Hotelling model of nonrenewable resource extraction predicts

Lin, C.-Y. Cynthia

192

Ind. Eng. Chem. Res. 1996,34, 4395-4405 4396 Multiple Steady States and Instability in Distillation. Implications  

E-Print Network [OSTI]

-KTH, S-100 44 Stockholm, Sweden Sigurd Skogestad Chemical Engineering, University of Trondheim-NTH, N, the column may settle in sustained oscillations (stable limit cycle). Finally, the impact of open Conference. become singular, resulting in multiple steady-state solutions. Furthermore, if the energy balance

Skogestad, Sigurd

193

Steady-State and Dynamic Modeling of Gas-Phase Polypropylene Processes Using Stirred-Bed Reactors  

E-Print Network [OSTI]

Steady-State and Dynamic Modeling of Gas-Phase Polypropylene Processes Using Stirred-Bed Reactors for the continuous gas-phase synthesis of polypropylene using stirred-bed reactors. The model considers the important- terization, and reactor residence time, in addition to the traditional Ziegler-Natta polymerization kinetics

Liu, Y. A.

194

Statistical mechanical theory for steady-state systems. III. Heat flow in a Lennard-Jones fluid  

E-Print Network [OSTI]

Statistical mechanical theory for steady-state systems. III. Heat flow in a Lennard-Jones fluid March 2005; accepted 4 May 2005; published online 28 June 2005 A statistical mechanical theory for heat distribution for heat flow down an imposed thermal gradient is tested with simulations of a Lennard-Jones fluid

Attard, Phil

195

Comparison between steady-state and dynamic I-V measurements from a single-cell thermionic fuel element  

SciTech Connect (OSTI)

A comparison between steady-state and dynamic I-V measurements from a single-cell thermionic fuel element (TFE) is made. The single-cell TFE used in this study is the prototype for the 40 kW{sub e} space nuclear power system that is similar to the 6 kW{sub e} TOPAZ-II. The steady-state I-V measurements influence the emitter temperature due to electron cooling. Therefore, to eliminate the steady-state I-V measurement influence on the TFE and provide a better understanding of the behavior of the thermionic energy converter and TFE characteristics, dynamic I-V measurements are made. The dynamic I-V measurements are made at various input power levels, cesium pressures, collector temperatures, and steady-state current levels. From these measurements, it is shown that the dynamic I-V's do not change the TFE characteristics at a given operating point. Also, the evaluation of the collector work function from the dynamic I-V measurements shows that the collector optimization is not due to a minimum in the collector work function but due to an emission optimization. Since the dynamic I-V measurements do not influence the TFE characteristics, it is believed that these measurements can be done at a system level to understand the influence of TFE placement in the reactor as a function of the core thermal distribution.

Wernsman, Bernard [New Mexico Engineering Research Institute Thermionics Evaluation Facility 901 University SE Albuquerque, New Mexico 87106 (United States)

1997-01-10T23:59:59.000Z

196

Comparison between steady-state and dynamic I-V measurements from a single-cell thermionic fuel element  

SciTech Connect (OSTI)

A comparison between steady-state and dynamic I-V measurements from a single-cell thermionic fuel element (TFE) is made. The single-cell TFE used in this study is the prototype for the 40kW{sub e} space nuclear power system that is similar to the 6kW{sub e} TOPAZ-II. The steady-state I-V measurements influence the emitter temperature due to electron cooling. Therefore, to eliminate the steady-state I-V measurement influence on the TFE and provide a better understanding of the behavior of the thermionic energy converter and TFE characteristics, dynamic I-V measurements are made. The dynamic I-V measurements are made at various input power levels, cesium pressures, collector temperatures, and steady-state current levels. From these measurements, it is shown that the dynamic I-V{close_quote}s do not change the TFE characteristics at a given operating point. Also, the evaluation of the collector work function from the dynamic I-V measurements shows that the collector optimization is not due to a minimum in the collector work function but due to an emission optimization. Since the dynamic I-V measurements do not influence the TFE characteristics, it is believed that these measurements can be done at a system level to understand the influence of TFE placement in the reactor as a function of the core thermal distribution. {copyright} {ital 1997 American Institute of Physics.}

Wernsman, B. [New Mexico Engineering Research Institute Thermionics Evaluation Facility 901 University SE Albuquerque, New Mexico87106 (United States)

1997-01-01T23:59:59.000Z

197

High Steady-State Accuracy Pneumatic Servo Positioning System with PVA/PV Control and Friction Compensation  

E-Print Network [OSTI]

is needed. The cause of the steady-state error for a pneumatic servo system with an open-center servo valve in Figure 1. A rodless cylinder and an open-center servo valve both made by Festo are utilized cvf Coefficient of viscous friction ba mm && , Mass flow rate into chamber A & B fa, fb Flow rate

Bone, Gary

198

STEADY STATE FLAMMABLE GAS RELEASE RATE CALCULATION AND LOWER FLAMMABILITY LEVEL EVALUATION FOR HANFORD TANK WASTE  

SciTech Connect (OSTI)

This report assesses the steady state flammability level under off normal ventilation conditions in the tank headspace for 28 double-shell tanks (DST) and 149 single shell-tanks (SST) at the Hanford Site. Flammability was calculated using estimated gas release rates, Le Chatelier's rule, and lower flammability limits of fuels in an air mixture. This revision updates the hydrogen generation rate input data for all 177 tanks using waste composition information from the Best Basis Inventory Detail Report (data effective as of August 4,2008). Assuming only barometric breathing, the shortest time to reach 25% of the lower flammability limit is 11 days for DSTs (i.e., tank 241-AZ-10l) and 36 days for SSTs (i.e., tank 241-B-203). Assuming zero ventilation, the shortest time to reach 25% of the lower flammability limit is 10 days for DSTs (i.e., tank 241-AZ-101) and 34 days for SSTs (i.e., tank 241-B-203).

MEACHAM JE

2009-10-26T23:59:59.000Z

199

STEADY STATE FLAMMABLE GAS RELEASE RATE CALCULATION AND LOWER FLAMMABILITY LEVEL EVALUATION FOR HANFORD TANK WASTE  

SciTech Connect (OSTI)

This report assesses the steady state flammability level under off normal ventilation conditions in the tank headspace for 28 double-shell tanks (DST) and 149 single shell-tanks (SST) at the Hanford Site. Flammability was calculated using estimated gas release rates, Le Chatelier's rule, and lower flammability limits of fuels in an air mixture. This revision updates the hydrogen generation rate input data for al1 177 tanks using waste composition information from the Best Basis Inventory Detail Report (data effective as of August 4,2008). Assuming only barometric breathing, the shortest time to reach 25% of the lower flammability limit is 13 days for DSTs (i.e., tank 241-AZ-102) and 36 days for SSTs (i.e., tank 241-B-203). Assuming zero ventilation, the shortest time to reach 25% of the lower flammability limit is 12 days for DSTs (i.e., tank 241-AZ-102) and 34 days for SSTs (i.e., tank 241-B-203).

MEACHAM JE

2008-11-17T23:59:59.000Z

200

Steady-State Simulation of Steam Reforming of INEEL Tank Farm Waste  

SciTech Connect (OSTI)

A steady-state model of the Sodium-Bearing Waste steam reforming process at the Idaho National Engineering and Environmental Laboratory has been performed using the commercial ASPEN Plus process simulator. The preliminary process configuration and its representation in ASPEN are described. As assessment of the capability of the model to mechanistically predict product stream compositions was made, and fidelity gaps and opportunities for model enhancement were identified, resulting in the following conclusions: 1) Appreciable benefit is derived from using an activity coefficient model for electrolyte solution thermodynamics rather than assuming ideality (unity assumed for all activity coefficients). The concentrations of fifteen percent of the species present in the primary output stream were changed by more than 50%, relative to Electrolyte NRTL, when ideality was assumed; 2) The current baseline model provides a good start for estimating mass balances and performing integrated process optimization because it contains several key species, uses a mechanistic electrolyte thermodynamic model, and is based on a reasonable process configuration; and 3) Appreciable improvement to model fidelity can be realized by expanding the species list and the list of chemical and phase transformations. A path forward is proposed focusing on the use of an improved electrolyte thermodynamic property method, addition of chemical and phase transformations for key species currently absent from the model, and the combination of RGibbs and Flash blocks to simulate simultaneous phase and chemical equilibria in the off-gas treatment train.

Nichols, Todd Travis; Taylor, Dean Dalton; Wood, Richard Arthur; Barnes, Charles Marshall

2002-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "li-ion steady state" 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

Steady-State Simulation of Steam Reforming of INEEL Tank Farm Waste  

SciTech Connect (OSTI)

A steady-state model of the Sodium-Bearing Waste steam reforming process at the Idaho National Engineering and Environmental Laboratory has been performed using the commercial ASPEN Plus process simulator. The preliminary process configuration and its representation in ASPEN are described. As assessment of the capability of the model to mechanistically predict product stream compositions was made, and fidelity gaps and opportunities for model enhancement were identified, resulting in the following conclusions: (1) Appreciable benefit is derived from using an activity coefficient model for electrolyte solution thermodynamics rather than assuming ideality (unity assumed for all activity coefficients). The concentrations of fifteen percent of the species present in the primary output stream were changed by more than 50%, relative to Electrolyte NRTL, when ideality was assumed; (2) The current baseline model provides a good start for estimating mass balances and performing integrated process optimization because it contains several key species, uses a mechanistic electrolyte thermodynamic model, and is based on a reasonable process configuration; and (3) Appreciable improvement to model fidelity can be realized by expanding the species list and the list of chemical and phase transformations. A path forward is proposed focusing on the use of an improved electrolyte thermodynamic property method, addition of chemical and phase transformations for key species currently absent from the model, and the combination of RGibbs and Flash blocks to simulate simultaneous phase and chemical equilibria in the off-gas treatment train.

Nichols, T.T.; Taylor, D.D.; Wood, R.A.; Barnes, C.M.

2002-08-15T23:59:59.000Z

202

Divertor erosion study for TPX and implications for steady-state fusion reactors  

SciTech Connect (OSTI)

A sputtering erosion analysis was performed for the tilted plate divertor design of the proposed TPX tokamak. High temperature ({approximately} 100 eV), non-radiative, steady-state compatible, plasma edge conditions were used as input to the REDEP erosion/redeposition code. For the reference carbon surface the results show a stable erosion profile, i.e., non-runaway self-sputtering, in spite of carbon self-sputtering coefficients that are locally in excess of unity. The resulting net erosion rates are high (peak {approx} 1--2.5 m/burn-yr) but may be acceptable for a low duty factor experimental device such as TPX. Other surface materials were also analyzed, in part to obtain insight for fusion reactor designs using a similar plasma regime. Both medium and high-Z materials are predicted not to work, due to runaway self-sputtering. Beryllium is stable but has erosion rates as high or higher than carbon. A liquid metal lithium surface has stable sputtering with a zero-erosion potential and may thus be an attractive future material choice.

Brooks, J.N.

1995-12-31T23:59:59.000Z

203

Divertor erosion study for TPX and implications for steady-state fusion reactors  

SciTech Connect (OSTI)

A sputtering erosion analysis was performed for the tilted plate divertor design of the proposed TPX tokamak. High temperature ({approximately}100 eV), non-radiative, steady-state compatible, plasma edge conditions were used as input to the REDEP erosion/redeposition code. For the reference carbon surface the results show a stable erosion profile, i.e., non-runaway self-sputtering, in spite of carbon self-sputtering coefficients that are locally in excess of unity. The resulting net erosion rates are high (peak {approx}1--2.5 m/burn-yr) but may be acceptable for a low duty factor experimental device such as TPX. Other surface materials were also analyzed, in part to obtain insight for fusion reactor designs using a similar plasma regime. Both medium and high-Z materials are predicted not to work, due to runaway self-sputtering. Beryllium is stable but has erosion rates as high or higher than carbon. A liquid metal lithium surface has stable sputtering with a zero-erosion potential and may thus be an attractive future material choice.

Brooks, J.N. [Argonne National Lab., IL (United States)

1995-12-31T23:59:59.000Z

204

Characterization of the TRIGA Mark II reactor full-power steady state  

E-Print Network [OSTI]

In this work, the characterization of the full-power steady state of the TRIGA Mark II nuclear reactor of the University of Pavia is performed by coupling Monte Carlo (MC) simulation for neutronics with "Multiphysics" model for thermal-hydraulics. Neutronic analyses have been performed starting from a MC model of the entire reactor system, based on the MCNP5 code, that was already validated in fresh fuel and zero-power configuration (in which thermal effects are negligible) using the available experimental data as benchmark. In order to describe the full-power reactor configuration, the temperature distribution in the core is necessary. To evaluate it, a thermal-hydraulic model has been developed, using the power distribution results from MC simulation as input. The thermal-hydraulic model is focused on the core active region and takes into account sub-cooled boiling effects present at full reactor power. The obtained temperature distribution is then introduced in the MC model and a benchmark analysis is carried out to validate the model in fresh fuel and full-power configuration. The good agreement between experimental data and simulation results concerning full-power reactor criticality, proves the reliability of the adopted methodology of analysis, both from neutronics and thermal-hydraulics perspective.

Antonio Cammi; Matteo Zanetti; Davide Chiesa; Massimiliano Clemenza; Stefano Pozzi; Ezio Previtali; Monica Sisti; Giovanni Magrotti; Michele Prata; Andrea Salvini

2015-03-03T23:59:59.000Z

205

Theory of steady-state plane tunneling-assisted impact ionization waves  

SciTech Connect (OSTI)

The effect of band-to-band and trap-assisted tunneling on the properties of steady-state plane ionization waves in p{sup +}-n-n{sup +} structures is theoretically analyzed. It is shown that such tunneling-assisted impact ionization waves do not differ in a qualitative sense from ordinary impact ionization waves propagating due to the avalanche multiplication of uniformly distributed seed electrons and holes. The quantitative differences of tunneling-assisted impact ionization waves from impact ionization waves are reduced to a slightly different relation between the wave velocity u and the maximum field strength E{sub M} at the front. It is shown that disregarding impact ionization does not exclude the possibility of the existence of tunneling-assisted ionization waves; however, their structure radically changes, and their velocity strongly decreases for the same E{sub M}. A comparison of the dependences u(E{sub M}) for various ionization-wave types makes it possible to determine the conditions under which one of them is dominant. In conclusion, unresolved problems concerning the theory of tunneling-assisted impact ionization waves are discussed and the directions of further studies are outlined.

Kyuregyan, A. S., E-mail: ask@vei.ru [Lenin All-Russian Electrical-Engineering Institute (Russian Federation)

2013-07-15T23:59:59.000Z

206

Characterization of the TRIGA Mark II reactor full-power steady state  

E-Print Network [OSTI]

In this work, the characterization of the full-power steady state of the TRIGA Mark II nuclear reactor of the University of Pavia is performed by coupling Monte Carlo (MC) simulation for neutronics with "Multiphysics" model for thermal-hydraulics. Neutronic analyses have been performed starting from a MC model of the entire reactor system, based on the MCNP5 code, that was already validated in fresh fuel and zero-power configuration (in which thermal effects are negligible) using the available experimental data as benchmark. In order to describe the full-power reactor configuration, the temperature distribution in the core is necessary. To evaluate it, a thermal-hydraulic model has been developed, using the power distribution results from MC simulation as input. The thermal-hydraulic model is focused on the core active region and takes into account sub-cooled boiling effects present at full reactor power. The obtained temperature distribution is then introduced in the MC model and a benchmark analysis is carr...

Cammi, Antonio; Chiesa, Davide; Clemenza, Massimiliano; Pozzi, Stefano; Previtali, Ezio; Sisti, Monica; Magrotti, Giovanni; Prata, Michele; Salvini, Andrea

2015-01-01T23:59:59.000Z

207

Non-equilibrium steady state and subgeometric ergodicity for a chain of three coupled rotors  

E-Print Network [OSTI]

We consider a chain of three rotors (rotators) whose ends are coupled to stochastic heat baths. The temperatures of the two baths can be different, and we allow some constant torque to be applied at each end of the chain. Under some non-degeneracy condition on the interaction potentials, we show that the process admits a unique invariant probability measure, and that it is ergodic with a stretched exponential rate. The interesting issue is to estimate the rate at which the energy of the middle rotor decreases. As it is not directly connected to the heat baths, its energy can only be dissipated through the two outer rotors. But when the middle rotor spins very rapidly, it fails to interact effectively with its neighbors due to the rapid oscillations of the forces. By averaging techniques, we obtain an effective dynamics for the middle rotor, which then enables us to find a Lyapunov function. This and an irreducibility argument give the desired result. We finally illustrate numerically some properties of the non-equilibrium steady state.

Noé Cuneo; Jean-Pierre Eckmann; Christophe Poquet

2014-11-03T23:59:59.000Z

208

Steady states and linear stability analysis of precipitation pattern formation at geothermal hot springs  

E-Print Network [OSTI]

A dynamical theory of geophysical precipitation pattern formation is presented and applied to irreversible calcium carbonate (travertine) deposition. Specific systems studied here are the terraces and domes observed at geothermal hot springs, such as those at Yellowstone National Park, and speleothems, particularly stalactites and stalagmites. The theory couples the precipitation front dynamics with shallow water flow, including corrections for turbulent drag and curvature effects. In the absence of capillarity and with a laminar flow profile, the theory predicts a one-parameter family of steady state solutions to the moving boundary problem describing the precipitation front. These shapes match well the measured shapes near the vent at the top of observed travertine domes. Closer to the base of the dome, the solutions deviate from observations, and circular symmetry is broken by a fluting pattern, which we show is associated with capillary forces causing thin film break-up. We relate our model to that recently proposed for stalactite growth, and calculate the linear stability spectrum of both travertine domes and stalactites. Lastly, we apply the theory to the problem of precipitation pattern formation arising from turbulent flow down an inclined plane, and identify a linear instability that underlies scale-invariant travertine terrace formation at geothermal hot springs.

Pak Yuen Chan; Nigel Goldenfeld

2007-08-22T23:59:59.000Z

209

Performance study of commercial LiCoO2 and spinel-based Li-ion cells  

E-Print Network [OSTI]

-ion cells and Sony 18650 cells using non-stoichiometric spinel and LiCoO2, respectively, as positive at the cathode and loss of active material at both electrodes due to electrolyte oxidation. For the Sony cells Science B.V. All rights reserved. Keywords: Li-ion cells; LiCoO2; Cell-Batt1 ; Capacity fade; Sony 18650

Popov, Branko N.

210

Enhanced Li+ ion transport in LiNi0.5Mn1.5O4 through Control...  

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

Citation: Zheng J, J Xiao, X Yu, L Kovarik, M Gu, F Omenya, X Chen, XQ Yang, J Liu, GL Graff, MS Whittingham, and J Zhang.2012."Enhanced Li+ ion transport in LiNi0.5Mn1.5O4...

211

Maximum Li storage in Si nanowires for the high capacity three-dimensional Li-ion battery  

E-Print Network [OSTI]

, such as fuel cells and secondary batteries. Here we report a coin-type Si nanowire NW half-cell Li-ion battery is the central research subject in various energy conversion systems, such as solar cells, fuel cells must be optimally coordinated.7 In this respect, Si nanowire NW arrays can serve as the high capacity

Jo, Moon-Ho

212

Applied Surface Science 266 (2013) 516 Interphase chemistry of Si electrodes used as anodes in Li-ion batteries  

E-Print Network [OSTI]

in Li-ion batteries Catarina Pereira-Nabaisa,b , Jolanta S´wiatowskaa, , Alexandre Chagnesb, , Franc made to increase the energy density of lithium-ion batteries (LiB), namely for electric vehicle applications. One way to improve the energy density of a battery is to use high specific capacity materials, e

Boyer, Edmond

213

Frontier of Fusion Research: Path to the Steady State Fusion Reactor by Large Helical Device  

SciTech Connect (OSTI)

The ITER, the International Thermonuclear Experimental Reactor, which will be built in Cadarache in France, has finally started this year, 2006. Since the thermal energy produced by fusion reactions divided by the external heating power, i.e., the Q value, will be larger than 10, this is a big step of the fusion research for half a century trying to tame the nuclear fusion for the 6.5 Billion people on the Earth. The source of the Sun's power is lasting steadily and safely for 8 Billion years. As a potentially safe environmentally friendly and economically competitive energy source, fusion should provide a sustainable future energy supply for all mankind for ten thousands of years. At the frontier of fusion research important milestones are recently marked on a long road toward a true prototype fusion reactor. In its own merits, research into harnessing turbulent burning plasmas and thereby controlling fusion reaction, is one of the grand challenges of complex systems science.After a brief overview of a status of world fusion projects, a focus is given on fusion research at the National Institute for Fusion Science (NIFS) in Japan, which is playing a role of the Inter University Institute, the coordinating Center of Excellence for academic fusion research and by the Large Helical Device (LHD), the world's largest superconducting heliotron device, as a National Users' facility. The current status of LHD project is presented focusing on the experimental program and the recent achievements in basic parameters and in steady state operations. Since, its start in a year 1998, a remarkable progress has presently resulted in the temperature of 140 Million degree, the highest density of 500 Thousand Billion/cc with the internal density barrier (IDB) and the highest steady average beta of 4.5% in helical plasma devices and the largest total input energy of 1.6 GJ, in all magnetic confinement fusion devices. Finally, a perspective is given of the ITER Broad Approach program as an integrated part of ITER and Development of Fusion Energy project Agreement. Moreover, the relationship with the NIFS' new parent organization the National Institutes of Natural Sciences and with foreign research institutions is briefly explained.

Motojima, Osamu [National Institute for Fusion Science, Toki-shi, Gifu-ken, 509-5292 (Japan)

2006-12-01T23:59:59.000Z

214

A Combustion Chemistry Analysis of Carbonate Solvents in Li-Ion Batteries  

SciTech Connect (OSTI)

Under abusive conditions Li-ion batteries can rupture, ejecting electrolyte and other flammable gases. In this paper we consider some of the thermochemical properties of these gases that will determine whether they ignite and how energetically they burn. We show that flames of carbonate solvents are fundamentally less energetic than those of conventional hydrocarbons. An example of this difference is given using a recently developed mechanism for dimethyl carbonate (DMC) combustion, where we show that a diffusion flame burning DMC has only half the peak energy release rate of an analogous propane flame. We find a significant variation among the carbonate solvents in the factors that are important to determining flammability, such as combustion enthalpy and vaporization enthalpy. This result suggests that thermochemical and kinetic factors might well be considered when choosing solvent mixtures.

Harris, S J; Timmons, A; Pitz, W J

2008-11-13T23:59:59.000Z

215

Enhanced rate capability of LiMn0.9Mg0.1PO4 nanoplates by reduced graphene oxide/carbon double coating for Li-ion batteries  

E-Print Network [OSTI]

coating for Li-ion batteries Sungun Wi a , Jaewon Kim a , Seunghoon Nam a , Joonhyeon Kang a , Sangheon March 2014 Available online 12 March 2014 Keywords: Li-ion battery LiMnPO4 Reduced graphene oxide Charge) nanoplates are intro- duced as a cathode material for Li-ion batteries with excellent rate capability

Park, Byungwoo

216

The predicted crystal structure of Li4C6O6, an organic cathode material for Li-ion batteries, from first-principles multi-level computational methods  

E-Print Network [OSTI]

The predicted crystal structure of Li4C6O6, an organic cathode material for Li-ion batteries, from details for the electrochemical properties of these organic electrodes (chemical potential for Li ion the optimum positions of Li ions intercalated within each C6O6 framework. 3. We then optimized each

Goddard III, William A.

217

Summary of Papers 1. P. Sauer and M. Pai, "Power System SteadyState Stability and the Load Flow Jacobian," IEEE  

E-Print Network [OSTI]

Summary of Papers 1. P. Sauer and M. Pai, "Power System SteadyState Stability and the Load Flow, "The Continuation Power Flow: A Tool for SteadyState Voltage Stability Analysis," IEEE Transactions of the system to maintain adequate and controllable voltage levels at all system load buses. The main concern

McCalley, James D.

218

Nonequilibrium Steady State in Open Quantum Systems: Influence Action, Stochastic Equation and Power Balance  

E-Print Network [OSTI]

The existence and uniqueness of a steady state for nonequilibrium systems (NESS) is a fundamental subject and a main theme of research in statistical mechanics for decades. For Gaussian systems, such as a chain of harmonic oscillators connected at each end to a heat bath, and for anharmonic oscillators under specified conditions, definitive answers exist in the form of proven theorems. Answering this question for quantum many-body systems poses a challenge for the present. In this work we address this issue by deriving the stochastic equations for the reduced system with self-consistent backaction from the two baths, calculating the energy flow from one bath to the chain to the other bath, and exhibiting a power balance relation in the total (chain + baths) system which testifies to the existence of a NESS in this system at late times. Its insensitivity to the initial conditions of the chain corroborates to its uniqueness. The functional method we adopt here entails the use of the influence functional, the coarse-grained and stochastic effective actions, from which one can derive the stochastic equations and calculate the average values of physical variables in open quantum systems. This involves both taking the expectation values of quantum operators of the system and the distributional averages of stochastic variables stemming from the coarse-grained environment. This method though formal in appearance is compact and complete. It can also easily accommodate perturbative techniques and diagrammatic methods from field theory. Taken all together it provides a solid platform for carrying out systematic investigations into the nonequilibrium dynamics of open quantum systems and quantum thermodynamics.

J. -T. Hsiang; B. L. Hu

2014-06-01T23:59:59.000Z

219

A fission-fusion hybrid reactor in steady-state L-mode tokamak configuration with natural uranium  

SciTech Connect (OSTI)

This work develops a conceptual design for a fusion-fission hybrid reactor operating in steady-state L-mode tokamak configuration with a subcritical natural or depleted uranium pebble bed blanket. A liquid lithium-lead alloy breeds enough tritium to replenish that consumed by the D-T fusion reaction. The fission blanket augments the fusion power such that the fusion core itself need not have a high power gain, thus allowing for fully non-inductive (steady-state) low confinement mode (L-mode) operation at relatively small physical dimensions. A neutron transport Monte Carlo code models the natural uranium fission blanket. Maximizing the fission power gain while breeding sufficient tritium allows for the selection of an optimal set of blanket parameters, which yields a maximum prudent fission power gain of approximately 7. A 0-D tokamak model suffices to analyze approximate tokamak operating conditions. This fission blanket would allow the fusion component of a hybrid reactor with the same dimensions as ITER to operate in steady-state L-mode very comfortably with a fusion power gain of 6.7 and a thermal fusion power of 2.1 GW. Taking this further can determine the approximate minimum scale for a steady-state L-mode tokamak hybrid reactor, which is a major radius of 5.2 m and an aspect ratio of 2.8. This minimum scale device operates barely within the steady-state L-mode realm with a thermal fusion power of 1.7 GW. Basic thermal hydraulic analysis demonstrates that pressurized helium could cool the pebble bed fission blanket with a flow rate below 10 m/s. The Brayton cycle thermal efficiency is 41%. This reactor, dubbed the Steady-state L-mode non-Enriched Uranium Tokamak Hybrid (SLEUTH), with its very fast neutron spectrum, could be superior to pure fission reactors in terms of breeding fissile fuel and transmuting deleterious fission products. It would likely function best as a prolific plutonium breeder, and the plutonium it produces could actually be more proliferation-resistant than that bred by conventional fast reactors. Furthermore, it can maintain constant total hybrid power output as burnup proceeds by varying the neutron source strength.

Reed, Mark; Parker, Ronald R.; Forget, Benoit [Department of Nuclear Science and Engineering, Massachusetts Institute of Technology 77 Massachusetts Avenue, Cambridge, MA 02139 (United States)

2012-06-19T23:59:59.000Z

220

STEADY-STATE FLAMMABLE GAS RELEASE RATE CALCULATION AND LOWER FLAMMABILITY LEVEL EVALUATION FOR HANFORD TANK WASTE  

SciTech Connect (OSTI)

Assess the steady-state flammability level at normal and off-normal ventilation conditions. The methodology of flammability analysis for Hanford tank waste is developed. The hydrogen generation rate model was applied to calculate the gas generation rate for 177 tanks. Flammability concentrations and the time to reach 25% and 100% of the lower flammability limit, and the minimum ventilation rate to keep from 100 of the LFL are calculated for 177 tanks at various scenarios.

HU TA

2007-10-26T23:59:59.000Z

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221

A quasi-steady state model to predict attic heat transfer and energy savings in residences using radiant barriers  

E-Print Network [OSTI]

[10-14] for Oak Ridge National Laboratories (ORNL) has focused on comparing energy reduction on three experimental houses operated by ORNL. Their research has consisted of both summer and winter tests of radiant barriers. Radiant Barrier...A QUASI-STEADY STATE MODEL TO PREDICT ATTIC HEAT TRANSFER AND ENERGY SAVINGS IN RESIDENCES USING RADIANT BARRIERS A Thesis by DAVID WALTER WINIARSKI Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment...

Winiarski, David Walter

2012-06-07T23:59:59.000Z

222

On Zero Steady-State Error Voltage Control of Single-Phase PWM Inverters With Different Load Types  

SciTech Connect (OSTI)

This paper comprehensively investigates and compares different multiloop linear control schemes for single-phase pulsewidth modulation inverters, both in stationary and synchronous (d-q) frames, by focusing on their steady-state error under different loading conditions. Specifically, it is shown how proportional plus resonant (P + R) control and load current feedback (LCF) control can, respectively, improve the steady-state and transient performance of the inverter, leading to the proposal of a PID + R + LCF control scheme. Furthermore, the LCF control and capacitive current feedback control schemes are shown to be subject to stability issues under second and higher order filter loads. Additionally, the equivalence between the stationary frame and d-q frame controllers is discussed depending on the orthogonal term generation method, and a d-q frame voltage control strategy is proposed eliminating the need for the generation of this orthogonal component. This is achieved while retaining all the advantages of operating in the synchronous d-q frame, i.e., zero steady-state error and ease of implementation. All theoretical findings are validated experimentally using a 1.5 kW laboratory prototype.

Dong, Dong [Virginia Polytechnic Institute and State University (Virginia Tech); Timothy, Thacker [Virginia Polytechnic Institute and State University (Virginia Tech); Burgos, Rolando [ABB; Wang, Fei [ORNL; Boroyevich, Dushan [Virginia Polytechnic Institute and State University (Virginia Tech)

2011-01-01T23:59:59.000Z

223

Steady-State Multiplicity and Stability of Thermal Equilibria in Homogeneous Charge Compression Ignition (HCCI) Engines  

E-Print Network [OSTI]

Ignition (HCCI) Engines C. J. Chiang and A. G. Stefanopoulou University of Michigan, Ann Arbor Email the autoignition of HCCI engines is analyzed in this paper. We find conditions under which steady into account the internal feedback structure of the thermal autoignition dynamics. Specifically, HCCI

Stefanopoulou, Anna

224

High spatial resolution brain functional MRI using submillimeter balanced steady-state free precession acquisition  

SciTech Connect (OSTI)

Purpose: One of the technical advantages of functional magnetic resonance imaging (fMRI) is its precise localization of changes from neuronal activities. While current practice of fMRI acquisition at voxel size around 3 × 3 × 3 mm{sup 3} achieves satisfactory results in studies of basic brain functions, higher spatial resolution is required in order to resolve finer cortical structures. This study investigated spatial resolution effects on brain fMRI experiments using balanced steady-state free precession (bSSFP) imaging with 0.37 mm{sup 3} voxel volume at 3.0 T. Methods: In fMRI experiments, full and unilateral visual field 5 Hz flashing checkerboard stimulations were given to healthy subjects. The bSSFP imaging experiments were performed at three different frequency offsets to widen the coverage, with functional activations in the primary visual cortex analyzed using the general linear model. Variations of the spatial resolution were achieved by removing outerk-space data components. Results: Results show that a reduction in voxel volume from 3.44 × 3.44 × 2 mm{sup 3} to 0.43 × 0.43 × 2 mm{sup 3} has resulted in an increase of the functional activation signals from (7.7 ± 1.7)% to (20.9 ± 2.0)% at 3.0 T, despite of the threefold SNR decreases in the original images, leading to nearly invariant functional contrast-to-noise ratios (fCNR) even at high spatial resolution. Activation signals aligning nicely with gray matter sulci at high spatial resolution would, on the other hand, have possibly been mistaken as noise at low spatial resolution. Conclusions: It is concluded that the bSSFP sequence is a plausible technique for fMRI investigations at submillimeter voxel widths without compromising fCNR. The reduction of partial volume averaging with nonactivated brain tissues to retain fCNR is uniquely suitable for high spatial resolution applications such as the resolving of columnar organization in the brain.

Wu, Pei-Hsin; Chung, Hsiao-Wen [Department of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan (China)] [Department of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan (China); Tsai, Ping-Huei [Imaging Research Center, Taipei Medical University, Taipei 11031, Taiwan and Department of Medical Imaging, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan (China)] [Imaging Research Center, Taipei Medical University, Taipei 11031, Taiwan and Department of Medical Imaging, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan (China); Wu, Ming-Long, E-mail: minglong.wu@csie.ncku.edu.tw [Institute of Medical Informatics, National Cheng-Kung University, Tainan 70101, Taiwan and Department of Computer Science and Information Engineering, National Cheng-Kung University, Tainan 70101, Taiwan (China)] [Institute of Medical Informatics, National Cheng-Kung University, Tainan 70101, Taiwan and Department of Computer Science and Information Engineering, National Cheng-Kung University, Tainan 70101, Taiwan (China); Chuang, Tzu-Chao [Department of Electrical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan (China)] [Department of Electrical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan (China); Shih, Yi-Yu [Siemens Limited Healthcare Sector, Taipei 11503, Taiwan (China)] [Siemens Limited Healthcare Sector, Taipei 11503, Taiwan (China); Huang, Teng-Yi [Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan (China)] [Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan (China)

2013-12-15T23:59:59.000Z

225

On the effect of the steady-state approximation in time-space composite studies of mesoscale convective systems  

E-Print Network [OSTI]

ON THE EFFECT OF THE STRA 'Y-STATE APPROXIMATION IN TIME-SPACE COMPOSITE STUDIES OF MESOSCALE CONVECTIVE SYSTEMS A Thesis KEVIN MORGAN MATTISON Subnitted to the Office of Graduate Studies of Texas A&M University in partial fulfillnent... of the requirements for the degree of MASTER OF SCIENCE Decenber 1992 Major Subject: Meteorology ON THE EFFECT OF THE STEADY-STATE APPROXINATIOH IN TIME-SPACE COMPOSITE STUDIES OF NESOSCALE COHVECTIVE SYSTENS A Thesis KEVIN MORGAN NATTISOH Approved as to style...

Mattison, Kevin Morgan

1992-01-01T23:59:59.000Z

226

Electrochemical characteristics of plasma-etched black silicon as anodes for Li-ion batteries  

SciTech Connect (OSTI)

Nanostructured silicon as an anode material for Li-ion batteries is produced for the first time by inductively coupled plasma–plasma etching of Si wafers in the black silicon regime. The microscopic structure strongly resembles other types of nanostructured silicon, with a well-arranged nanostructure possessing a sufficient porosity for accommodating large volume expansion. Despite these features, however, a high first-cycle irreversible capacity loss and a poor cycle life are observed. The main reason for these poor features is the formation of a thick solid-electrolyte interphase (SEI) layer related to the surface condition of the pristine nanostructured black silicon (b-Si) electrode. Therefore, the cycle life of the b-Si electrode is heavily influenced by the constant reformation of the SEI layer depending upon the surface composition in spite of the presence of nanostructured Si. In the fast lithiation experiments, the nanostructure region of the b-Si electrode is detached from the Si substrate owing to the kinetics difference between the lithium ion diffusion and the electron injection and phase transformation in the nanostructured Si region. This means that more Si substrate is involved in lithiation at high current rates. It is therefore important to maintain balance in the chemical kinetics during the lithiation of nanostructured Si electrodes with a Si substrate.

Lee, Gibaek; Wehrspohn, Ralf B., E-mail: ralf.b.wehrspohn@iwmh.fraunhofer.de [Fraunhofer Institute for Mechanics of Materials IWM, Halle (Saale) 06120, Germany and Department of Physics, Martin-Luther University, Halle (Saale) 06099 (Germany); Schweizer, Stefan L. [Department of Physics, Martin-Luther University, Halle (Saale) 06099 (Germany)

2014-11-01T23:59:59.000Z

227

Improved layered mixed transition metal oxides for Li-ion batteries  

SciTech Connect (OSTI)

Recent work in our laboratory has been directed towards development of mixed layered transition metal oxides with general composition Li[Ni, Co, M, Mn]O2 (M=Al, Ti) for Li ion battery cathodes. Compounds such as Li[Ni1/3Co1/3Mn1/3]O2 (often called NMCs) are currently being commercialized for use in consumer electronic batteries, but the high cobalt content makes them too expensive for vehicular applications such as electric vehicles (EV), plug-in hybrid electric vehicles (PHEVs), or hybrid electric vehicles (HEVs). To reduce materials costs, we have explored partial or full substitution of Co with Al, Ti, and Fe. Fe substitution generally decreases capacity and results in poorer rate and cycling behavior. Interestingly, low levels of substitution with Al or Ti improve aspects of performance with minimal impact on energy densities, for some formulations. High levels of Al substitution compromise specific capacity, however, so further improvements require that the Ni and Mn content be increased and Co correspondingly decreased. Low levels of Al or Ti substitution can then be used offset negative effects induced by the higher Ni content. The structural and electrochemical characterization of substituted NMCs is presented in this paper.

Doeff, Marca M.; Conry, Thomas; Wilcox, James

2010-03-05T23:59:59.000Z

228

Experimental Validation of a Lithium-Ion Battery State of Charge Estimation with an Extended Kalman Filter  

E-Print Network [OSTI]

], is identified and validated through experimental data by a 10 Ah li-ion battery pack, during charge 37 V at 10 Ah Li-ion battery.. Keywords: Battery model, parameter identification, Kalman filter, SOCExperimental Validation of a Lithium-Ion Battery State of Charge Estimation with an Extended Kalman

Stefanopoulou, Anna

229

Tritium distribution in the environment in the vicinity of a chronic atmospheric source-assessment of the steady state hypothesis  

SciTech Connect (OSTI)

The Savannah River Site (SRS) is a major radionuclide production center. Tritium has been released to the atmosphere over the 36 year period of operation. The tritiated water concentration of the atmosphere, rain, vegetation and food have been routinely monitored during this period. Special studies have been made of tritium in soils and in the organic fractions of these same materials. The available data suggest that the average tritium concentration in the components of the terrestrial environment have approached a steady state with the two main sources of tritium, rainfall and atmospheric water vapor.

Murphy, C.E. Jr.; Bauer, L.R.; Zeigler, C.C.

1990-01-01T23:59:59.000Z

230

Tritium distribution in the environment in the vicinity of a chronic atmospheric source-assessment of the steady state hypothesis  

SciTech Connect (OSTI)

The Savannah River Site (SRS) is a major radionuclide production center. Tritium has been released to the atmosphere over the 36 year period of operation. The tritiated water concentration of the atmosphere, rain, vegetation and food have been routinely monitored during this period. Special studies have been made of tritium in soils and in the organic fractions of these same materials. The available data suggest that the average tritium concentration in the components of the terrestrial environment have approached a steady state with the two main sources of tritium, rainfall and atmospheric water vapor.

Murphy, C.E. Jr.; Bauer, L.R.; Zeigler, C.C.

1990-12-31T23:59:59.000Z

231

User's manual for steady-state computer simulation for air-to-air heat pumps with selected examples  

SciTech Connect (OSTI)

A steady-state computer simulation model has been developed for conventional, vapor compression cycle, electrically driven air-to-air heat pumps. Comparison between the heat pump simulation model predictions and available data from three heat pump experiments indicate that the predictions generally are within accepted tolerances. A sensitivity analysis was made to assess the effect of possible variations in some of the input parameters on the system's thermal performance. The computer simulation model is briefly described for heating and cooling modes, and simulation model input data and output are given. (LEW)

Not Available

1982-06-30T23:59:59.000Z

232

Nonequilibrium fluctuation-dissipation relations for one- and two-particle correlation functions in steady-state quantum transport  

SciTech Connect (OSTI)

We study the non-equilibrium (NE) fluctuation-dissipation (FD) relations in the context of quantum thermoelectric transport through a two-terminal nanodevice in the steady-state. The FD relations for the one- and two-particle correlation functions are derived for a model of the central region consisting of a single electron level. Explicit expressions for the FD relations of the Green's functions (one-particle correlations) are provided. The FD relations for the current-current and charge-charge (two-particle) correlations are calculated numerically. We use self-consistent NE Green's functions calculations to treat the system in the absence and in the presence of interaction (electron-phonon) in the central region. We show that, for this model, there is no single universal FD theorem for the NE steady state. There are different FD relations for each different class of problems. We find that the FD relations for the one-particle correlation function are strongly dependent on both the NE conditions and the interactions, while the FD relations of the current-current correlation function are much less dependent on the interaction. The latter property suggests interesting applications for single-molecule and other nanoscale transport experiments.

Ness, H., E-mail: herve.ness@kcl.ac.uk [Department of Physics, School of Natural and Mathematical Sciences, King's College London, Strand, London WC2R 2LS (United Kingdom); Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom); European Theoretical Spectroscopy Facility (ETSF), Liege (Belgium); Dash, L. K. [European Theoretical Spectroscopy Facility (ETSF), Liege (Belgium) [European Theoretical Spectroscopy Facility (ETSF), Liege (Belgium); Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom)

2014-04-14T23:59:59.000Z

233

Nanosecond Time Resolved and Steady State Infrared Studies of Photoinduced Decomposition of TATB at Ambient and Elevated Pressures  

SciTech Connect (OSTI)

The timescale and/or products of photo-induced decomposition of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) were investigated at ambient pressure and compared with products formed at elevated pressure (i.e. 8 GPa). Ultrafast time-resolved infrared and steady state Fourier transform IR (FTIR) spectroscopies were used to probe TATB and its products after photoexcitation with a 5 ns pulse of 532 nm light. At ambient pressure, transient spectra of TATB indicate that the molecule has significantly decomposed within 60 ns; transient spectra also indicate that formation of CO{sub 2}, an observed decomposition product, is complete within 30-40 s. Proof of principle time resolved experiments at elevated pressures were performed and are discussed briefly. Comparison of steady-state FTIR spectra obtained at ambient and elevated pressure (ca. 8 GPa) indicate that the decomposition products vary with pressure. We find evidence for water as a decomposition product only at elevated pressure.

Glascoe, E A; Zaug, J M; Armstrong, M R; Crowhurst, J C; Grant, C D; Fried, L E

2009-03-05T23:59:59.000Z

234

First-Principles Study of Novel Conversion Reactions for High-Capacity Li-Ion Battery Anodes in the Li-Mg-B-N-H System  

SciTech Connect (OSTI)

Anodes for Li-ion batteries are primarily carbon-based due to their low cost and long cycle life. However, improvements to the Li capacity of carbon anodes, LiC{sub 6} in particular, are necessary to obtain a larger energy density. State-of-the-art light-metal hydrides for hydrogen storage applications often contain Li and involve reactions requiring Li transport, and light-metal ionic hydrides are candidates for novel conversion materials. Given a set of known solid-state and gas-phase reactants, we have determined the phase diagram in the Li-Mg-B-N-H system in the grand canonical ensemble, as a function of lithium chemical potential. We present computational results for several new conversion reactions with capacities between 2400 and 4000 mAh g{sup -1} that are thermodynamically favorable and that do not involve gas evolution. We provide experimental evidence for the reaction pathway on delithiation for the compound Li{sub 4}BN{sub 3}H{sub 10}. While the predicted reactions involve multiple steps, the maximum volume increase for these materials on lithium insertion is significantly smaller than that for Si.

Mason, T.H.; Graetz, J.; Liu, X.; Hong, J.; Majzoub, E.H.

2011-07-28T23:59:59.000Z

235

The preliminary analysis on the steady-state and kinetic features of the molten salt pebble-bed reactor  

SciTech Connect (OSTI)

A novel design concept of molten salt pebble-bed reactor with an ultra-simplified integral primary circuit called 'Nuclear Hot Spring' has been proposed, featured by horizontal coolant flow in a deep pool pebble-bed reactor, providing 'natural safety' features with natural circulation under full power operation and less expensive primary circuit arrangement. In this work, the steady-state physical properties of the equilibrium state of the molten salt pebble-bed reactor are calculated by using the VSOP code, and the steady-state thermo-hydraulic analysis is carried out based on the approximation of absolutely horizontal flow of the coolant through the core. A new concept of 2-dimensional, both axial and radial, multi-pass on-line fuelling scheme is presented. The result reveals that the radial multi-pass scheme provides more flattened power distribution and safer temperature distribution than the one-pass scheme. A parametric analysis is made corresponding to different pebble diameters, the key parameter of the core resistance and the temperature at the pebble center. It is verified that within a wide range of pebble diameters, the maximum pebble center temperatures are far below the safety limit of the fuel, and the core resistance is considerably less than the buoyant force, indicating that the natural circulation under full power operation is achievable and the ultra-simplified integral primary circuit without any pump is possible. For the kinetic properties, it is verified that the negative temperature coefficient is achieved in sufficient under-moderated condition through the preliminary analysis on the temperature coefficients of fuel, coolant and moderator. The requirement of reactivity compensation at the shutdown stages of the operation period is calculated for the further studies on the reactivity control. The molten salt pebble-bed reactor with horizontal coolant flow can provide enhanced safety and economical features. (authors)

Xia, B. [Inst. of Nuclear and New Energy Technology, Tsinghua Univ., Beijing 100084 (China); Lu, Y. [Green Hi-Tek, 104 Harland Court, Oak Ridge, TN 37830 (United States)

2012-07-01T23:59:59.000Z

236

Engineering steady states using jump-based feedback for multipartite entanglement generation  

SciTech Connect (OSTI)

We investigate the use of quantum-jump-based feedback to manipulate the stability of multipartite entangled dark states in an open quantum system. Using the model proposed in Phys. Rev. A 76, 010301(R) (2007) for a pair of atoms, we show a general strategy to produce many-body singlet stationary entangled states for larger number of atoms. In the case of four qubits, we propose a simple local feedback control that, although not optimal, is realistic and stabilizes a highly entangled state. We discuss the limitations and analyze alternative strategies within the framework of direct jump feedback schemes.

Stevenson, R. N.; Hope, J. J.; Carvalho, A. R. R. [Department of Quantum Sciences, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200 (Australia)

2011-08-15T23:59:59.000Z

237

Noise sources and competition between stimulated Brillouin and Raman scattering: A one-dimensional steady-state approach  

SciTech Connect (OSTI)

A 1D steady-state model is developed to deal with stimulated scattering processes. The volume and boundary noise sources for scattered light are discussed in detail. Our results indicate that the boundary noise sources may play a significant role in estimating the reflectivity of stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS). With the capability of our model to deal with broadband scattered light, we find that pump depletion could be the main reason to the anti-correlation between SBS and SRS versus electron density observed in experiments. A simple method is proposed to phenomenologically include the effect of nonlinear saturation mechanisms in our model and reasonable results are obtained.

Gong, Tao [Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China) [Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China); Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China); Li, Zhichao [Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China)] [Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China); Zhao, Bin; Hu, Guang-yue; Zheng, Jian [Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)] [Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)

2013-09-15T23:59:59.000Z

238

Steady-state domain wall motion driven by adiabatic spin-transfer torque with assistance of microwave field  

SciTech Connect (OSTI)

We have studied the current-induced displacement of a 180° Bloch wall by means of micromagnetic simulation and analytical approach. It is found that the adiabatic spin-transfer torque can sustain a steady-state domain wall (DW) motion in the direction opposite to that of the electron flow without Walker Breakdown when a transverse microwave field is applied. This kind of motion is very sensitive to the microwave frequency and can be resonantly enhanced by exciting the domain wall thickness oscillation mode. A one-dimensional analytical model was established to account for the microwave-assisted wall motion. These findings may be helpful for reducing the critical spin-polarized current density and designing DW-based spintronic devices.

Wang, Xi-guang; Guo, Guang-hua, E-mail: guogh@mail.csu.edu.cn; Nie, Yao-zhuang; Xia, Qing-lin; Tang, Wei [School of Physics and Electronics, Central South University, Changsha 410083 (China)] [School of Physics and Electronics, Central South University, Changsha 410083 (China); Wang, D. [Department of Physics, National University of Defense Technology, Changsha 410073 (China)] [Department of Physics, National University of Defense Technology, Changsha 410073 (China); Zeng, Zhong-ming [Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123 (China)] [Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123 (China)

2013-12-23T23:59:59.000Z

239

A Steady-State Picture of Solar Wind Acceleration and Charge State Composition Derived from a Global Wave-Driven MHD Model  

E-Print Network [OSTI]

The higher charge states found in slow ($<$400km s$^{-1}$) solar wind streams compared to fast streams have supported the hypothesis that the slow wind originates in closed coronal loops, and released intermittently through reconnection. Here we examine whether a highly ionized slow wind can also form along steady and open magnetic field lines. We model the steady-state solar atmosphere using AWSoM, a global magnetohydrodynamic model driven by Alfv{\\'e}n waves, and apply an ionization code to calculate the charge state evolution along modeled open field lines. This constitutes the first charge states calculation covering all latitudes in a realistic magnetic field. The ratios $O^{+7}/O^{+6}$ and $C^{+6}/C^{+5}$ are compared to in-situ Ulysses observations, and are found to be higher in the slow wind, as observed; however, they are under-predicted in both wind types. The modeled ion fractions of S, Si, and Fe are used to calculate line-of-sight intensities, which are compared to EIS observations above a cor...

Oran, Rona; van der Holst, Bart; Lepri, Susan T; Frazin, Alberto M Vásquez Federico A Nuevo Richard; Manchester, Ward B; Sokolov, Igor V; Gombosi, Tamas I

2014-01-01T23:59:59.000Z

240

Thermal Stability of LiPF6 Salt and Li-ion Battery ElectrolytesContaining LiPF6  

SciTech Connect (OSTI)

The thermal stability of the neat LiPF6 salt and of 1 molal solutions of LiPF6 in prototypical Li-ion battery solvents was studied with thermogravimetric analysis (TGA) and on-line FTIR. Pure LiPF6 salt is thermally stable up to 380 K in a dry inert atmosphere, and its decomposition path is a simple dissociation producing LiF as solid and PF5 as gaseous products. In the presence of water (300 ppm) in the carrier gas, its decomposition onset temperature is lowered as a result of direct thermal reaction between LiPF6 and water vapor to form POF3 and HF. No new products were observed in 1 molal solutions of LiPF6 in EC, DMC and EMC by on-line TGA-FTIR analysis. The storage of the same solutions in sealed containers at 358 K for 300 420 hrs. did not produce any significant quantity of new products as well. In particular, noalkylflurophosphates were found in the solutions after storage at elevated temperature. In the absence of either an impurity like alcohol or cathode active material that may (or may not) act as a catalyst, there is no evidence of thermally induced reaction between LiPF6 and the prototypical Li-ion battery solvents EC, PC, DMC or EMC.

Yang, Hui; Zhuang, Guorong V.; Ross Jr., Philip N.

2006-03-08T23:59:59.000Z

Note: This page contains sample records for the topic "li-ion steady state" 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

Description of TASHA: Thermal Analysis of Steady-State-Heat Transfer for the Advanced Neutron Source Reactor  

SciTech Connect (OSTI)

This document describes the code used to perform Thermal Analysis of Steady-State-Heat-Transfer for the Advanced Neutron Source (ANS) Reactor (TASHA). More specifically, the code is designed for thermal analysis of the fuel elements. The new code reflects changes to the High Flux Isotope Reactor steady-state thermal-hydraulics code. These changes were aimed at both improving the code`s predictive ability and allowing statistical thermal-hydraulic uncertainty analysis to be performed. A significant portion of the changes were aimed at improving the correlation package in the code. This involved incorporating more recent correlations for both single-phase flow and two-phase flow thermal limits, including the addition of correlations to predict the phenomenon of flow excursion. Since the code was to be used in the design of the ANS, changes were made to allow the code to predict limiting powers for a variety of thermal limits, including critical heat flux, flow excursion, incipient boiling, oxide spallation, maximum centerline temperature, and surface temperature equal to the saturation temperature. Statistical uncertainty analysis also required several changes to the code itself as well as changes to the code input format. This report describes these changes in enough detail to allow the reader to interpret code results and also to understand where the changes were made in the code programming. This report is not intended to be a stand alone report for running the code, however, and should be used in concert with the two previous reports published on the original code. Sample input and output files are also included to help accomplish these goals. In addition, a section is included that describes requirements for a new, more modem code that the project planned to develop.

Morris, D.G.; Chen, N.C.; Nelson, W.R.; Yoder, G.L.

1996-10-01T23:59:59.000Z

242

Dispersed-flow film boiling in rod-bundle geometry: steady-state heat-transfer data and correlation comparisons. [PWR; BWR  

SciTech Connect (OSTI)

Assessment of six film boiling correlations and one single-phase vapor correlation has been made using data from 22 steady state upflow rod bundle tests (series 3.07.9). Bundle fluid conditions were calculated using energy and mass conservation considerations. Results of the steady state film boiling tests support the conclusions reached in the analysis of prior transient tests 3.03.6AR, 3.06.6B, and 3.08.6C. Comparisons between experimentally determined and correlation-predicted heat transfer coefficients, are presented.

Yoder, G. L.; Morris, D. G.; Mullins, C. B.; Ott, L. J.; Reed, D. A.

1982-03-01T23:59:59.000Z

243

STEADY STATE FLAMMABLE GAS RELEASE RATE CALCULATION & LOWER FLAMMABILITY LEVEL EVALUATION FOR HANFORD TANK WASTE [SEC 1 & 2  

SciTech Connect (OSTI)

Flammable gases such as hydrogen, ammonia, and methane are observed in the tank dome space of the Hanford Site high-level waste tanks. This report assesses the steady-state flammability level under normal and off-normal ventilation conditions in the tank dome space for 177 double-shell tanks and single-shell tanks at the Hanford Site. The steady-state flammability level was estimated from the gas concentration of the mixture in the dome space using estimated gas release rates, Le Chatelier's rule and lower flammability limits of fuels in an air mixture. A time-dependent equation of gas concentration, which is a function of the gas release and ventilation rates in the dome space, has been developed for both soluble and insoluble gases. With this dynamic model, the time required to reach the specified flammability level at a given ventilation condition can be calculated. In the evaluation, hydrogen generation rates can be calculated for a given tank waste composition and its physical condition (e.g., waste density, waste volume, temperature, etc.) using the empirical rate equation model provided in Empirical Rate Equation Model and Rate Calculations of Hydrogen Generation for Hanford Tank Waste, HNF-3851. The release rate of other insoluble gases and the mass transport properties of the soluble gas can be derived from the observed steady-state gas concentration under normal ventilation conditions. The off-normal ventilation rate is assumed to be natural barometric breathing only. A large body of data is required to do both the hydrogen generation rate calculation and the flammability level evaluation. For tank waste that does not have sample-based data, a statistical-based value from probability distribution regression was used based on data from tanks belonging to a similar waste group. This report (Revision 3) updates the input data of hydrogen generation rates calculation for 177 tanks using the waste composition information in the Best-Basis Inventory Detail Report in the Tank Waste Information Network System, and the waste temperature data in the Surveillance Analysis Computer System (SACS) (dated July 2003). However, the release rate of methane, ammonia, and nitrous oxide is based on the input data (dated October 1999) as stated in Revision 0 of this report. Scenarios for adding waste to existing waste levels (dated July 2003) have been studied to determine the gas generation rates and the effect of smaller dome space on the flammability limits to address the issues of routine water additions and other possible waste transfer operations. In the flammability evaluation with zero ventilation, the sensitivity to waste temperature and to water addition was calculated for double-shell tanks 241-AY-102, 241-AN-102,241-AZ-101,241-AN-107,241-AY-101 and 241-AZ-101. These six have the least margin to flammable conditions among 28 double-shell tanks.

HU, T.A.

2003-09-30T23:59:59.000Z

244

ASTM standards for measuring solar reflectance and infrared emittance of construction materials and comparing their steady-state surface temperatures  

SciTech Connect (OSTI)

Numerous experiments on individual buildings in California and Florida show that painting roofs white reduces air conditioning load up to 50%, depending on the thermal resistance or amount of insulation under the roof. The savings, of course, are strong functions of the thermal integrity of a building and climate. In earlier work, the authors have estimated the national energy savings potential from reflective roofs and paved surfaces. Achieving this potential, however, is conditional on receiving the necessary Federal, states, and electric utilities support to develop materials with high solar reflectance and design effective implementation programs. An important step in initiating an effective program in this area is to work with the american Society for Testing and Materials (ASTM) and the industry to create test procedures, rating, and labeling for building and paving materials. A subcommittee of ASTM E06, E06.42, on Cool Construction Materials, was formed as the vehicle to develop standard practices for measuring, rating, and labeling cool construction materials. The subcommittee has also undertaken the development of a standard practice for calculating a solar reflectance index (SRI) of horizontal and low-sloped surfaces. SRI is a measure of the relative steady-state temperature of a surface with respect to a standard white surface (SRI = 100) and a standard black surface (SRI = 0) under standard solar and ambient conditions. This paper discusses the technical issues relating to development of these two ASTM standards.

Akbari, H.; Levinson, R.; Berdahl, P. [Lawrence Berkeley National Lab., CA (United States). Energy and Environment Div.

1996-08-01T23:59:59.000Z

245

Pre-Steady-State Analysis of ATP Hydrolysis by Saccharomyces cereVisiae DNA Topoisomerase II. 2. Kinetic Mechanism for the Sequential Hydrolysis of Two  

E-Print Network [OSTI]

Pre-Steady-State Analysis of ATP Hydrolysis by Saccharomyces cereVisiae DNA Topoisomerase II. 2. Kinetic Mechanism for the Sequential Hydrolysis of Two ATP Timothy T. Harkins,,| Timothy J. Lewis two ATP and rapidly hydrolyzes at least one of them before encountering a slow step in the reaction

Lewis, Timothy

246

Gravity currents in a two-layer stratified ambient: The theory for the steady-state (front condition) and lock-released flows, and experimental  

E-Print Network [OSTI]

Gravity currents in a two-layer stratified ambient: The theory for the steady- state (front://pof.aip.org/features/most_downloaded Information for Authors: http://pof.aip.org/authors #12;PHYSICS OF FLUIDS 24, 026601 (2012) Gravity currents February 2012) We consider the propagation of a gravity current of density c at the bottom of a two

Flynn, Morris R.

247

Statistical mechanical theory for the structure of steady state systems: Application to a Lennard-Jones fluid with applied temperature gradient  

E-Print Network [OSTI]

Statistical mechanical theory for the structure of steady state systems: Application to a Lennard-Jones fluid with applied temperature gradient Phil Attard School of Chemistry F11, University of Sydney, New statistical mechanics for inhomogeneous systems may now be applied to determining the structure

Attard, Phil

248

Method and apparatus for steady-state magnetic measurement of poloidal magnetic field near a tokamak plasma  

SciTech Connect (OSTI)

A method and apparatus for the steady-state measurement of poloidal magnetic field near a tokamak plasma, where the tokamak is configured with respect to a cylindrical coordinate system having z, phi (toroidal), and r axes. The method is based on combining the two magnetic field principles of induction and torque. The apparatus includes a rotor assembly having a pair of inductive magnetic field pickup coils which are concentrically mounted, orthogonally oriented in the r and z directions, and coupled to remotely located electronics which include electronic integrators for determining magnetic field changes. The rotor assembly includes an axle oriented in the toroidal direction, with the axle mounted on pivot support brackets which in turn are mounted on a baseplate. First and second springs are located between the baseplate and the rotor assembly restricting rotation of the rotor assembly about its axle, the second spring providing a constant tensile preload in the first spring. A strain gauge is mounted on the first spring, and electronic means to continually monitor strain gauge resistance variations is provided. Electronic means for providing a known current pulse waveform to be periodically injected into each coil to create a time-varying torque on the rotor assembly in the toroidal direction causes mechanical strain variations proportional to the torque in the mounting means and springs so that strain gauge measurement of the variation provides periodic magnetic field measurements independent of the magnetic field measured by the electronic integrators.

Woolley, R.D.

1996-12-31T23:59:59.000Z

249

Method and apparatus for steady-state magnetic measurement of poloidal magnetic field near a tokamak plasma  

SciTech Connect (OSTI)

A method and apparatus for the steady-state measurement of poloidal magnetic field near a tokamak plasma, where the tokamak is configured with respect to a cylindrical coordinate system having z, phi (toroidal), and r axes. The method is based on combining the two magnetic field principles of induction and torque. The apparatus includes a rotor assembly having a pair of inductive magnetic field pickup coils which are concentrically mounted, orthogonally oriented in the r and z directions, and coupled to remotely located electronics which include electronic integrators for determining magnetic field changes. The rotor assembly includes an axle oriented in the toroidal direction, with the axle mounted on pivot support brackets which in turn are mounted on a baseplate. First and second springs are located between the baseplate and the rotor assembly restricting rotation of the rotor assembly about its axle, the second spring providing a constant tensile preload in the first spring. A strain gauge is mounted on the first spring, and electronic means to continually monitor strain gauge resistance variations is provided. Electronic means for providing a known current pulse waveform to be periodically injected into each coil to create a time-varying torque on the rotor assembly in the toroidal direction causes mechanical strain variations proportional to the torque in the mounting means and springs so that strain gauge measurement of the variation provides periodic magnetic field measurements independent of the magnetic field measured by the electronic integrators.

Woolley, Robert D. (Hillsborough, NJ)

1998-01-01T23:59:59.000Z

250

Method and apparatus for steady-state magnetic measurement of poloidal magnetic field near a tokamak plasma  

DOE Patents [OSTI]

A method and apparatus are disclosed for the steady-state measurement of poloidal magnetic field near a tokamak plasma, where the tokamak is configured with respect to a cylindrical coordinate system having z, phi (toroidal), and r axes. The method is based on combining the two magnetic field principles of induction and torque. The apparatus includes a rotor assembly having a pair of inductive magnetic field pickup coils which are concentrically mounted, orthogonally oriented in the r and z directions, and coupled to remotely located electronics which include electronic integrators for determining magnetic field changes. The rotor assembly includes an axle oriented in the toroidal direction, with the axle mounted on pivot support brackets which in turn are mounted on a baseplate. First and second springs are located between the baseplate and the rotor assembly restricting rotation of the rotor assembly about its axle, the second spring providing a constant tensile preload in the first spring. A strain gauge is mounted on the first spring, and electronic means to continually monitor strain gauge resistance variations is provided. Electronic means for providing a known current pulse waveform to be periodically injected into each coil to create a time-varying torque on the rotor assembly in the toroidal direction causes mechanical strain variations proportional to the torque in the mounting means and springs so that strain gauge measurement of the variation provides periodic magnetic field measurements independent of the magnetic field measured by the electronic integrators. 6 figs.

Woolley, R.D.

1998-09-08T23:59:59.000Z

251

Steady-state film-boiling data in rod-bundle geometry and non-equilibrium correlation assessment  

SciTech Connect (OSTI)

A series of 22 steady-state, rod bundle, dispersed flow film boiling experiments has been performed in the Thermal-Hydraulic Test Facility (THTF), a pressurized-water loop containing 64 full-length electrically heated rods. Test parameters in the upflow experiments cover a wide range of conditions typical of those which might be encountered during a nuclear reactor loss-of-coolant accident. Local equilibrium fluid conditions were calculated using mass and energy conservation considerations. Experimentally determined heat transfer coefficients were compared to several available film boiling heat transfer correlations: Dougall-Rohsenow, Groeneveld 5.7, Groeneveld-Delorme, Chen, Jones-Zuber, and Yoder-Rohsenow. The Groeneveld 5.7 correlation tended to predict the data better than any other correlation tested. The Dougall-Rohsenow correlation tends to overpredict the data while the Yoder-Rohsenow correlation predicted the data better than the other nonequilibrium correlations examined. However, all of the nonequilibrium correlations generally underpredict the heat transfer.

Yoder, G.L.; Morris, D.G.; Mullins, C.B.; Ott, L.J.; Reed, D.A.

1982-01-01T23:59:59.000Z

252

FRAPCON-2: A Computer Code for the Calculation of Steady State Thermal-Mechanical Behavior of Oxide Fuel Rods  

SciTech Connect (OSTI)

FRAPCON-2 is a FORTRAN IV computer code that calculates the steady state response of light Mater reactor fuel rods during long-term burnup. The code calculates the temperature, pressure, deformation, and tai lure histories of a fuel rod as functions of time-dependent fuel rod power and coolant boundary conditions. The phenomena modeled by the code include (a) heat conduction through the fuel and cladding, (b) cladding elastic and plastic deformation, (c) fuel-cladding mechanical interaction, (d) fission gas release, (e} fuel rod internal gas pressure, (f) heat transfer between fuel and cladding, (g) cladding oxidation, and (h) heat transfer from cladding to coolant. The code contains necessary material properties, water properties, and heat transfer correlations. FRAPCON-2 is programmed for use on the CDC Cyber 175 and 176 computers. The FRAPCON-2 code Is designed to generate initial conditions for transient fuel rod analysis by either the FRAP-T6 computer code or the thermal-hydraulic code, RELAP4/MOD7 Version 2.

Berna, G. A; Bohn, M. P.; Rausch, W. N.; Williford, R. E.; Lanning, D. D.

1981-01-01T23:59:59.000Z

253

Study on Off-Design Steady State Performances of Helium Gas Turbo-compressor for HTGR-GT  

SciTech Connect (OSTI)

The high temperature gas-cooled reactor (HTGR) coupled with direct gas turbine cycle is a promising concept in the future of nuclear power development. Both helium gas turbine and compressor are key components in the cycle. Under normal conditions, the mode of power adjustment is to control total helium mass in the primary loop using gas storage vessels. Meanwhile, thermal power of reactor core is regulated. This article analyzes off-design performances of helium gas turbine and compressors for high temperature gas-cooled reactor with gas turbine cycle (HTGR-GT) at steady state level of electric power adjustment. Moreover, performances of the cycle were simply discussed. Results show that the expansion ratio of turbine decreases as electric power reduces but the compression ratios of compressors increase, efficiencies of both turbine and compressors decrease to some extent. Thermal power does not vary consistently with electric power, the difference between these two powers increases as electric power reduces. As a result of much thermal energy dissipated in the temperature modulator set at core inlet, thermal efficiency of the cycle has a widely reduction under partial load conditions. (authors)

Qisen Ren; Xiaoyong Yang; Zhiyong Huang; Jie Wang [Tsinghua University, Beijing, 100084 (China)

2006-07-01T23:59:59.000Z

254

Steady state protein levels in Geobacter metallireducens grown with Iron (III) citrate or nitrate as terminal electron acceptor.  

SciTech Connect (OSTI)

Geobacter species predominate in aquatic sediments and submerged soils where organic carbon sources are oxidized with the reduction of Fe(III). The natural occurrence of Geobacter in some waste sites suggests this microorganism could be useful for bioremediation if growth and metabolic activity can be regulated. 2-DE was used to monitor the steady state protein levels of Geobacter metallireducens grown with either Fe(III) citrate or nitrate to elucidate metabolic differences in response to different terminal electron acceptors present in natural environments populated by Geobacter. Forty-six protein spots varied significantly in abundance (p<0.05) between the two growth conditions; proteins were identified by tryptic peptide mass and peptide sequence determined by MS/MS. Enzymes involved in pyruvate metabolism and the tricarboxylic acid (TCA) cycle were more abundant in cells grown with Fe(III) citrate, while proteins associated with nitrate metabolism and sensing cellular redox status along with several proteins of unknown function were more abundant in cells grown with nitrate. These results indicate a higher level of flux through the TCA cycle in the presence of Fe(III) compared to nitrate. The oxidative stress response observed in previous studies of Geobacter sulfurreducens grown with Fe(III) citrate was not seen in G. metallireducens.

Ahrendt, A. J.; Tollaksen, S. L.; Lindberg, C.; Zhu, W.; Yates, J. R., III; Nevin, K. P.; Lovley, D.; Giometti, C. S.; Biosciences Division; The Scripps Research Inst.; Univ. of Massachusetts

2007-01-01T23:59:59.000Z

255

A generalized framework for in-line energy deposition during steady-state Monte Carlo radiation transport  

SciTech Connect (OSTI)

A rigorous treatment of energy deposition in a Monte Carlo transport calculation, including coupled transport of all secondary and tertiary radiations, increases the computational cost of a simulation dramatically, making fully-coupled heating impractical for many large calculations, such as 3-D analysis of nuclear reactor cores. However, in some cases, the added benefit from a full-fidelity energy-deposition treatment is negligible, especially considering the increased simulation run time. In this paper we present a generalized framework for the in-line calculation of energy deposition during steady-state Monte Carlo transport simulations. This framework gives users the ability to select among several energy-deposition approximations with varying levels of fidelity. The paper describes the computational framework, along with derivations of four energy-deposition treatments. Each treatment uses a unique set of self-consistent approximations, which ensure that energy balance is preserved over the entire problem. By providing several energy-deposition treatments, each with different approximations for neglecting the energy transport of certain secondary radiations, the proposed framework provides users the flexibility to choose between accuracy and computational efficiency. Numerical results are presented, comparing heating results among the four energy-deposition treatments for a simple reactor/compound shielding problem. The results illustrate the limitations and computational expense of each of the four energy-deposition treatments. (authors)

Griesheimer, D. P. [Bertis Atomic Power Laboratory, P.O. Box 79, West Mifflin, PA 15122 (United States); Stedry, M. H. [Knolls Atomic Power Laboratory, P.O. Box 1072, Schenectady, NY 12301 (United States)

2013-07-01T23:59:59.000Z

256

J.E. Menard -IEA Workshop 59 -Shape and Aspect Ratio Optimization for High Beta, Steady-State Tokamaks 1 Ideal MHD stability scaling with  

E-Print Network [OSTI]

-State Tokamaks 8 · Highest-N shots are H-mode ­ H-mode profiles N 3.5 for optimized n=1 no-wall limit · 10 with at = 0.3 ­ High essential for highest stable T N limit increases from 3.5 to 5.5 with increasing Workshop 59 - Shape and Aspect Ratio Optimization for High Beta, Steady-State Tokamaks 2 Outline

257

RELAP-7 Level 2 Milestone Report: Demonstration of a Steady State Single Phase PWR Simulation with RELAP-7  

SciTech Connect (OSTI)

The document contains the simulation results of a steady state model PWR problem with the RELAP-7 code. The RELAP-7 code is the next generation nuclear reactor system safety analysis code being developed at Idaho National Laboratory (INL). The code is based on INL's modern scientific software development framework - MOOSE (Multi-Physics Object-Oriented Simulation Environment). This report summarizes the initial results of simulating a model steady-state single phase PWR problem using the current version of the RELAP-7 code. The major purpose of this demonstration simulation is to show that RELAP-7 code can be rapidly developed to simulate single-phase reactor problems. RELAP-7 is a new project started on October 1st, 2011. It will become the main reactor systems simulation toolkit for RISMC (Risk Informed Safety Margin Characterization) and the next generation tool in the RELAP reactor safety/systems analysis application series (the replacement for RELAP5). The key to the success of RELAP-7 is the simultaneous advancement of physical models, numerical methods, and software design while maintaining a solid user perspective. Physical models include both PDEs (Partial Differential Equations) and ODEs (Ordinary Differential Equations) and experimental based closure models. RELAP-7 will eventually utilize well posed governing equations for multiphase flow, which can be strictly verified. Closure models used in RELAP5 and newly developed models will be reviewed and selected to reflect the progress made during the past three decades. RELAP-7 uses modern numerical methods, which allow implicit time integration, higher order schemes in both time and space, and strongly coupled multi-physics simulations. RELAP-7 is written with object oriented programming language C++. Its development follows modern software design paradigms. The code is easy to read, develop, maintain, and couple with other codes. Most importantly, the modern software design allows the RELAP-7 code to evolve with time. RELAP-7 is a MOOSE-based application. MOOSE (Multiphysics Object-Oriented Simulation Environment) is a framework for solving computational engineering problems in a well-planned, managed, and coordinated way. By leveraging millions of lines of open source software packages, such as PETSC (a nonlinear solver developed at Argonne National Laboratory) and LibMesh (a Finite Element Analysis package developed at University of Texas), MOOSE significantly reduces the expense and time required to develop new applications. Numerical integration methods and mesh management for parallel computation are provided by MOOSE. Therefore RELAP-7 code developers only need to focus on physics and user experiences. By using the MOOSE development environment, RELAP-7 code is developed by following the same modern software design paradigms used for other MOOSE development efforts. There are currently over 20 different MOOSE based applications ranging from 3-D transient neutron transport, detailed 3-D transient fuel performance analysis, to long-term material aging. Multi-physics and multiple dimensional analyses capabilities can be obtained by coupling RELAP-7 and other MOOSE based applications and by leveraging with capabilities developed by other DOE programs. This allows restricting the focus of RELAP-7 to systems analysis-type simulations and gives priority to retain and significantly extend RELAP5's capabilities.

David Andrs; Ray Berry; Derek Gaston; Richard Martineau; John Peterson; Hongbin Zhang; Haihua Zhao; Ling Zou

2012-05-01T23:59:59.000Z

258

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network [OSTI]

lithium battery cathode. Electrochemical and Solid Statebattery performance of LiMn2O4 cathode. Solid State Ionics,

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

259

Li ion diffusion mechanism in the crystalline electrolyte -Li3PO4  

E-Print Network [OSTI]

battery3 Solid state electrolyte could be made very thin to overcome to the low ion- conductivity et al., Solid State Ionics 53-56, 647 (1992). 3. http://www.ms.ornl.gov/researchgroups/Functional/BatteryV)material kTEA e T K T / )( - = 1. B. Wang et al., J. of Solid State Chemistry 115, 313 (1995). 2. J. B. Bates

Holzwarth, Natalie

260

Modeling the steady-state ISV (in situ vitrification) process: A 3-D finite element analysis of coupled thermal-electric fields  

SciTech Connect (OSTI)

Steady-state modeling considerations for simulating the in situ vitrification (ISV) process are documented based upon the finite element numerical approach. Recommendations regarding boundary condition specifications and mesh discretization are presented. The effects of several parameters on the ISV process response are calculated and the results discussed. The parameters investigated include: (1) electrode depth, (2) ambient temperature, (3) supplied current, (4) electrical conductivity, (5) electrode separation, and (6) soil/waste characterization. 13 refs., 29 figs., 1 tab.

Langerman, M.A.

1990-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "li-ion steady state" 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

Li-Ion Battery with LiFePO4 Cathode and Li4Ti5O12 Anode for Stationary Energy Storage  

SciTech Connect (OSTI)

i-ion batteries based on commercially available LiFePO4 cathode and Li4Ti5O12 anode were investigated for potential stationary energy storage applications. The full cell that operated at flat 1.85V demonstrated stable cycling for 200 cycles followed by a rapid fade. A significant improvement in cycling stability was achieved via Ketjen black coating of the cathode. A Li-ion full cell with Ketjen black modified LiFePO4 cathode and an unmodified Li4Ti5O12 anode exhibited negligible fade after more than 1200 cycles with a capacity of ~130mAh/g. The improved stability, along with its cost-effectiveness, environmentally benignity and safety, make the LiFePO4/ Li4Ti5O12 Li-ion battery a promising option of storing renewable energy.

Wang, Wei; Choi, Daiwon; Yang, Zhenguo

2013-01-01T23:59:59.000Z

262

A Computational Investigation of Li(subscript 9)M(subscript 3)(P(subscript 2)O(subscript 7))(subscript 3)(PO(subscript 4))(subscript 2) (M = V, Mo) as Cathodes for Li Ion Batteries  

E-Print Network [OSTI]

Cathodes with high energy density and safety are sought to improve the performance of Li ion batteries for electric vehicle and consumer electronics applications. In this study, we examine the properties of the potential ...

Jain, Anubhav

263

Effect on Performance of Composition of Li-Ion Carbon Anodes Derived from PMAN/DVB Copolymers  

SciTech Connect (OSTI)

The effects on electrochemical performance of the nitrogen content of disordered carbons derived from polymethacryonitrile (PMAN)-divinylbenzene (DVB) copolymers were examined in galvanostatic cycling tests between 2 V and 0.01 V vs. Li/Li+ in lM LiPF6/ethylene carbonate (EC)-dimethyl carbonate (DMC). The first-cycle reversible capacities and coulombic efficiencies increased with increase in the level of nitrogen for samples prepared at 700°C. However, the degree of fade also increased. Similar tests were performed on materials that were additionally heated at 1,000° and 1,300°C for five hours. Loss of nitrogen, oxygen, and hydrogen occurred under these conditions, with none remaining at the highest temperature in all cases but one. The pyrolysis temperature dominated the electrochemical performance for these samples, with lower reversible and irreversible capacities for the first intercalation cycle as the pyrolysis temperature was increased. Fade was reduced and coulombic efficiencies also improved with increase in temperate. The large irreversible capacities and high fade of these materials makes them unsuitable for use in Li-ion cells.

Even, William R.; Guidotti, Ronald A.

1999-05-14T23:59:59.000Z

264

Modeling and simulation of Li-ion conduction in poly(ethylene oxide)  

E-Print Network [OSTI]

/discharge voltage depends on the current and resistance of all battery components. In most solid-state lithium as a solid polymer electrolyte (SPE) in thin-film batteries and its ionic conductivity is a key parameter-ion batteries, a thin-layer (0.02­0.2 mm) solid polymer electrolyte (SPE) is sandwiched between two electrodes

Averbuch, Amir

265

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 0state reaction method or an aqueous solution method or a sol-gel method which is followed by a rapid quenching from high temperatures into liquid nitrogen or liquid helium.

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

2008-01-01T23:59:59.000Z

266

Flow rate through the small intestine of the equine determined with soluble and insoluble indicators given in a pulse and steady-state dose  

E-Print Network [OSTI]

three indicators and two combinations of indicators dosed with the diet: (1) CnOi, (2) CrEDTA (3) CoEDTA (4) CnOs with CrEDTA and (5) CnOs with CoEDTA. There were two experiments. In the pulse dose experiment the ponies were dosed orally... treatments for the soluble and insoluble indicators, with the exception of the MRT for the Crz03/ CrEDTA treatment was significantly (P&. 05) different from all other treatments. In the steady-state experiment, estimates of ileal output were...

Nyberg, Michelle Ann

1993-01-01T23:59:59.000Z

267

Amorphous Zn?GeO? Nanoparticles as Anodes with High Reversible Capacity and Long Cycling Life for Li-ion Batteries  

SciTech Connect (OSTI)

Amorphous and crystalline Zn?GeO? nanoparticles were prepared and characterized as anode materials for Li-ion batteries. A higher reversible specific capacity of 1250 mAh/g after 500 cycles and excellent rate capability were obtained for amorphous Zn?GeO? nanoparticles, compared to that of crystalline Zn?GeO? nanoparticles. Small particle size, amorphous phase and incorporation of zinc and oxygen contribute synergetically to the improved performance by effectively mitigating the huge volume variations during lithiation and delithiation process.

Yi, Ran; Feng, Jinkui; Lv, Dongping; Gordin, Mikhail; Chen, Shuru; Choi, Daiwon; Wang, Donghai

2013-07-30T23:59:59.000Z

268

A New Charging Method for Li-ion Batteries: Dependence of the charging time on the Direction of an Additional Oscillating Field  

E-Print Network [OSTI]

We have recently proposed a new method for charging Li-ion batteries based on large-scale molecular dynamics studies (I. Abou Hamad et al, Phys. Chem. Chem. Phys., 12, 2740 (2010)). Applying an additional oscillating electric field in the direction perpendicular to the graphite sheets of the anode showed an exponential decrease in charging time with increasing amplitude of the applied oscillating field. Here we present new results exploring the effect on the charging time of changing the orientation of the oscillating field. Results for oscillating fields in three orthogonal directions are compared.

Hamad, I Abou; Wipf, D O; Rikvold, P A

2010-01-01T23:59:59.000Z

269

Elastic and inelastic scattering of 240-MeV (6)Li ions from (40)Ca and (48)Ca and tests of a systematic optical potential  

E-Print Network [OSTI]

PHYSICAL REVIEW C 81, 044612 (2010) Elastic and inelastic scattering of 240-MeV 6Li ions from 40Ca and 48Ca and tests of a systematic optical potential Krishichayan, X. Chen,* Y.-W. Lui, J. Button, and D. H. Youngblood Cyclotron Institute, Texas... that 0556-2813/2010/81(4)/044612(10) 044612-1 ?2010 The American Physical Society KRISHICHAYAN, CHEN, LUI, BUTTON, AND YOUNGBLOOD PHYSICAL REVIEW C 81, 044612 (2010) the real and imaginary optical potentials have the same radial shape [22]. However...

Chen, Krishichayan X.; Lui, Y. -W; Button, J.; Youngblood, David H.

2010-01-01T23:59:59.000Z

270

Numerical simulation of the fluid flow and heat transfer processes during scavenging in a two-stroke engine under steady-state conditions  

SciTech Connect (OSTI)

A numerical simulation of the scavenging process in a two-stroke flat-piston model engine has been developed. Air enters the cylinder circumferentially, inducting a three-dimensional turbulent swirling flow. The problem was modeled as a steady-state axisymmetric flow through a cylinder with uniform wall temperature. The steady-state regime was simulated by assuming the piston head fixed at the bottom dead center. The calculation was performed employing the {kappa}-{epsilon} model of turbulence. A comparison of the results obtained for the flow field with available experimental data showed very good agreement, and a comparison with an available numerical solution revealed superior results. The effects of the Reynolds number, inlet port angles, and engine geometry on the flow and in-cylinder heat transfer characteristics were investigated. The Nusselt number substantially increases with larger Reynolds numbers and a smaller bore-to-stroke ratio. It is shown that the positioning of the exhaust value(s) is the main parameter to control the scavenging process.

Castro Gouveia, M. de; Reis Parise, J.A. dos; Nieckele, A.O. (Pontificia Univ. Catolica, Rio de Janeiro (Brazil))

1992-05-01T23:59:59.000Z

271

Analyzing a steady-state phenomenon using an ensemble of sequential transient events: A proof of concept on photocurrent of bacteriorhodopsin upon continuous photoexcitation  

SciTech Connect (OSTI)

The proton pump activity of bacteriorhodopsin in aqueous solution upon excitation with modulated continuous light was monitored electrochemically and analyzed by superimposing a series of transient proton translocation events H{sub i}{sup +}(t). An evolution function f(t)=(he{sup ?lt}+k)/(h+k) , including a decay and a stationary offset, was introduced to weight the contribution of the individual transient events evolving with time in the envelope of the steady-state event. The evolution of the total proton concentration can be treated as an ensemble of weighted sequential transient events, H{sub total}{sup +}(t)=?{sub i=0}{sup n}H{sub i}{sup +}(t)?f(t), and the temporal profile of the photocurrent is derived by differentiating the proton concentration with respect to time, (table) . The temporal profiles of the bacteriorhodopsin photocurrent in pH range of 6.3–8.1 were analyzed using a well-defined kinetics model and restricted mathematical formulization, and fitted temporal behaviors agreed with the observations. This successful proof-of-concept study on analyzing a steady-state phenomenon using an ensemble of sequential transient events can be generalized to quantify other phenomena upon continuous stimulation, such as estimation of the light-driven ion pump activities of the photosynthetic proteins upon illumination.

Hung, Chang-Wei; Chu, Li-Kang, E-mail: lkchu@mx.nthu.edu.tw [Department of Chemistry, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan (China); Ho, Ching-Hwa [Interdisplinary Program of Science, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan (China)

2014-10-14T23:59:59.000Z

272

Understanding the Optical Band Shape: Coumarin-153 Steady-State Spectroscopy Dmitry V. Matyushov*, and Marshall D. Newton*,  

E-Print Network [OSTI]

*, and Marshall D. Newton*, Department of Chemistry and Biochemistry, Arizona State UniVersity, P.O. Box 871604

Matyushov, Dmitry

273

ESTABLISHING SUSTAINABLE US HEV/PHEV MANUFACTURING BASE: STABILIZED LITHIUM METAL POWDER, ENABLING MATERIAL AND REVOLUTIONARY TECHNOLOGY FOR HIGH ENERGY LI-ION BATTERIES  

SciTech Connect (OSTI)

FMC Lithium Division has successfully completed the project “Establishing Sustainable US PHEV/EV Manufacturing Base: Stabilized Lithium Metal Powder, Enabling Material and Revolutionary Technology for High Energy Li-ion Batteries”. The project included design, acquisition and process development for the production scale units to 1) produce stabilized lithium dispersions in oil medium, 2) to produce dry stabilized lithium metal powders, 3) to evaluate, design and acquire pilot-scale unit for alternative production technology to further decrease the cost, and 4) to demonstrate concepts for integrating SLMP technology into the Li- ion batteries to increase energy density. It is very difficult to satisfy safety, cost and performance requirements for the PHEV and EV applications. As the initial step in SLMP Technology introduction, industry can use commercially available LiMn2O4 or LiFePO4, for example, that are the only proven safer and cheaper lithium providing cathodes available on the market. Unfortunately, these cathodes alone are inferior to the energy density of the conventional LiCoO2 cathode and, even when paired with the advanced anode materials, such as silicon composite material, the resulting cell will still not meet the energy density requirements. We have demonstrated, however, if SLMP Technology is used to compensate for the irreversible capacity in the anode, the efficiency of the cathode utilization will be improved and the cost of the cell, based on the materials, will decrease.

Yakovleva, Marina

2012-12-31T23:59:59.000Z

274

Investigation of deep-level defects in Cu(In,Ga)Se{sub 2} thin films by a steady-state photocapacitance method  

SciTech Connect (OSTI)

The properties of defect levels located 0.8?eV above the valence band in Cu(In{sub 1?x},Ga{sub x})Se{sub 2} thin films were investigated by a steady-state photocapacitance method. When illuminated by light with a photon energy of 0.8?eV at 60?K, a fast increase, followed by a slow increase, was observed in the photocapacitance transients of all samples. Upon being re-exposed, samples with a low bandgap energy showed a slow decrease in photocapacitance transients. These observations were interpreted using a configuration coordinate model assuming two states for the 0.8?eV defect: a stable state D and its metastable state D* with a large lattice relaxation. The difference in the evolution mechanisms of the photocapacitance transients was attributed to the difference in the optical transition of carriers between the two states of the 0.8?eV defect and the valence and conduction bands.

Hu, Xiaobo, E-mail: hxb1314@gmail.com; Sakurai, Takeaki; Akimoto, Katsuhiro [Institute of Applied Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573 (Japan); Yamada, Akimasa; Ishizuka, Shogo; Niki, Sigeru [National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568 (Japan)

2014-10-28T23:59:59.000Z

275

Influence of cracking on the diffusion properties of cement-based materials. Part I: Influence of continuous cracks on the steady-state regime  

SciTech Connect (OSTI)

The influence of traversing cracks on the steady-state diffusion properties of concrete was studied. The effect of both anisotropic and isotropic crack networks was first theoretically assessed using an analytical approach. To simplify the transport equations, cracks were assumed to be of uniform size and evenly distributed on a one- or two-dimensional grid. Results of the theoretical analysis were then compared to experimental data. Both series of results indicate that cracking can markedly alter the diffusion properties of the material and favor the penetration (or the leaching) of drifting species. A simple method to predict the effect of cracking on the concrete diffusivity is proposed. Predictions are made on the basis of two parameters: the crack density and the mean crack aperture. This method can provide a first estimate of the diffusion properties of severely damaged concrete elements.

Gerard, B.; Marchand, J.

2000-01-01T23:59:59.000Z

276

Steady-state entanglement in a double-well Bose-Einstein condensate through coupling to a superconducting resonator  

E-Print Network [OSTI]

. Fleischhauer and M. D. Lukin, Phys. Rev. A 65, 022314 (2002). [22] G. J. Yang, O. Zobay, and P. Meystre, Phys. Rev. A 59, 4012 (1999). [23] M. B. Plenio, S. F. Huelga, A. Beige, and P. L. Knight, Phys. Rev. A 59, 2468 (1999). [24] C. Joshi, A. Hutter, F. E... = g,e represent the ground and the excited states, respectively. Here m? is the mass of the atom in the state |?? and VDW(x) is the 1D double-well potential which is given by [11] VDW(x) = Vd [ 1 ? ( x x0 )2]2 , (2) where Vd is the barrier height and x...

Chu, Shih-I; Ng, H. T.

2011-08-23T23:59:59.000Z

277

A numerical study of steady-state vortex configurations and vortex pinning in type-II superconductors  

E-Print Network [OSTI]

are presented. Transitions between different multi-vortex states as H is changed is demonstrated by abrupt changes in vortex configurations and jumps in the B vs H plot. An efficient scheme to determine the equilibrium vortex configuration in a mesoscopic system...

Kim, Sangbum

2006-04-12T23:59:59.000Z

278

Microwave Plasma Chemical Vapor Deposition of Carbon Coatings on LiNi1/3Co1/3Mn1/3O2 for Li-Ion Battery Composite Cathodes  

E-Print Network [OSTI]

O 2 for Li-ion Battery Composite Cathodes Marek L. MarcinekRaman spectroscopy. The composite LiNi 1/3 Co 1/3 Mn 1/3 O 2electronic contact within the composite cathode and does not

Doeff, M.M.

2012-01-01T23:59:59.000Z

279

Steady-State Gyrokinetics Transport Code (SSGKT), A Scientific Application Partnership with the Framework Application for Core-Edge Transport Simulations, Final Report  

SciTech Connect (OSTI)

This project initiated the development of TGYRO ? a steady-state Gyrokinetic transport code (SSGKT) that integrates micro-scale GYRO turbulence simulations into a framework for practical multi-scale simulation of conventional tokamaks as well as future reactors. Using a lightweight master transport code, multiple independent (each massively parallel) gyrokinetic simulations are coordinated. The capability to evolve profiles using the TGLF model was also added to TGYRO and represents a more typical use-case for TGYRO. The goal of the project was to develop a steady-state Gyrokinetic transport code (SSGKT) that integrates micro-scale gyrokinetic turbulence simulations into a framework for practical multi-scale simulation of a burning plasma core ? the International Thermonuclear Experimental Reactor (ITER) in particular. This multi-scale simulation capability will be used to predict the performance (the fusion energy gain, Q) given the H-mode pedestal temperature and density. At present, projections of this type rely on transport models like GLF23, which are based on rather approximate fits to the results of linear and nonlinear simulations. Our goal is to make these performance projections with precise nonlinear gyrokinetic simulations. The method of approach is to use a lightweight master transport code to coordinate multiple independent (each massively parallel) gyrokinetic simulations using the GYRO code. This project targets the practical multi-scale simulation of a reactor core plasma in order to predict the core temperature and density profiles given the H-mode pedestal temperature and density. A master transport code will provide feedback to O(16) independent gyrokinetic simulations (each massively parallel). A successful feedback scheme offers a novel approach to predictive modeling of an important national and international problem. Success in this area of fusion simulations will allow US scientists to direct the research path of ITER over the next two decades. The design of an efficient feedback algorithm is a serious numerical challenge. Although the power source and transport balance coding in the master are standard, it is nontrivial to design a feedback loop that can cope with outputs that are both intermittent and extremely expensive. A prototypical feedback scheme has already been successfully demonstrated for a single global GYRO simulation, although the robustness and efficiency are likely far from optimal. Once the transport feedback scheme is perfected, it could, in principle, be embedded into any of the more elaborate transport codes (ONETWO, TRANSP, and CORSICA), or adopted by other FSP-related multi-scale projects.

Fahey, Mark R. [Oak Ridge National Laboratory] [Oak Ridge National Laboratory; Candy, Jeff [General Atomics] [General Atomics

2013-11-07T23:59:59.000Z

280

Interactive Transient and Steady-state Analysis of Regional Ice Flow C30-W65A Jed Brown jedbrown@mcs.anl.gov, Iulian Grindeanu, Dmitry Karpeev, Barry Smith, Tim Tautges  

E-Print Network [OSTI]

Interactive Transient and Steady-state Analysis of Regional Ice Flow C30-W65A Jed Brown jedbrown/files/WCRP2011-RegionalIceFlow.pdf Preprocessing Model data for a regional ice flow models often comes from many. From these inputs, univer- sal kriging is used to produce an initial fine triangular mesh, this mesh

Brown, Jed

Note: This page contains sample records for the topic "li-ion steady state" 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

Argininosuccinate synthetase: steady state kinetics  

E-Print Network [OSTI]

asparate and citrulline was needed to substract any ATPase activity. The rate was observed as a change in absorbance at 340 nm. The protein content was measured at 280 nm assuming an extinction coefficient of 1 AU per mg/mL. The assay mixture... 10 1 I ASP (mM 0 Figure 4. Aspartete versus ATP (citrullinem2. 5 mN) 19 500 450 0. 45mM '&v 350 . 30mM 0. 15m M 200 150 no t 50 1/ ATP (mM ) 10 Figure 5. ATP versus argininosuccinate (citrulline and aspartatem1. 0 mN) 20 340 0. 43...

Seiglie, Jorge Luis

1983-01-01T23:59:59.000Z

282

Neutronics, steady-state, and transient analyses for the Poland MARIA reactor for irradiation testing of LEU lead test fuel assemblies from CERCA : ANL independent verification results.  

SciTech Connect (OSTI)

The MARIA reactor at the Institute of Atomic Energy (IAE) in Swierk (30 km SE of Warsaw) in the Republic of Poland is considering conversion from high-enriched uranium (HEU) to low-enriched uranium (LEU) fuel assemblies (FA). The FA design in MARIA is rather unique; a suitable LEU FA has never been designed or tested. IAE has contracted with CERCA (the fuel supply portion of AREVA in France) to supply 2 lead test assemblies (LTA). The LTAs will be irradiated in MARIA to burnup level of at least 40% for both LTAs and to 60% for one LTA. IAE may decide to purchase additional LEU FAs for a full core conversion after the test irradiation. The Reactor Safety Committee within IAE and the National Atomic Energy Agency in Poland (PAA) must approve the LTA irradiation process. The approval will be based, in part, on IAE submitting revisions to portions of the Safety Analysis Report (SAR) which are affected by the insertion of the LTAs. (A similar process will be required for the full core conversion to LEU fuel.) The analysis required was established during working meetings between Argonne National Laboratory (ANL) and IAE staff during August 2006, subsequent email correspondence, and subsequent staff visits. The analysis needs to consider the current high-enriched uranium (HEU) core and 4 core configurations containing 1 and 2 LEU LTAs in various core positions. Calculations have been performed at ANL in support of the LTA irradiation. These calculations are summarized in this report and include criticality, burn-up, neutronics parameters, steady-state thermal hydraulics, and postulated transients. These calculations have been performed at the request of the IAE staff, who are performing similar calculations to be used in their SAR amendment submittal to the PAA. The ANL analysis has been performed independently from that being performed by IAE and should only be used as one step in the verification process.

Garner, P. L.; Hanan, N. A. (Nuclear Engineering Division)

2011-06-07T23:59:59.000Z

283

The Lithium-Ion Cell: Model, State Of Charge Estimation  

E-Print Network [OSTI]

The Lithium-Ion Cell: Model, State Of Charge Estimation and Battery Management System Tutor degradation mechanisms of a Li-ion cell based on LiCoO2", Journal of Power Sources #12;Lithium ions and e and Y. Fuentes. Computer simulations of a lithium-ion polymer battery and implications for higher

Schenato, Luca

284

Whole-Body Magnetic Resonance Angiography with Additional Steady-State Acquisition of the Infragenicular Arteries in Patients with Peripheral Arterial Disease  

SciTech Connect (OSTI)

The purpose of this investigation was to determine if addition of infragenicular steady-state (SS) magnetic resonance angiography (MRA) to first-pass imaging improves diagnostic performance compared with first-pass imaging alone in patients with peripheral arterial disease (PAD) undergoing whole-body (WB) MRA. Twenty consecutive patients with PAD referred to digital-subtraction angiography (DSA) underwent WB-MRA. Using a bolus-chase technique, first-pass WB-MRA was performed from the supra-aortic vessels to the ankles. The blood-pool contrast agent gadofosveset trisodium was used at a dose of 0.03 mmol/kg body weight. Ten minutes after injection of the contrast agent, high-resolution (0.7-mm isotropic voxels) SS-MRA of the infragenicular arteries was performed. Using DSA as the 'gold standard,' sensitivities and specificities for detecting significant arterial stenoses ({>=}50% luminal narrowing) with first-pass WB-MRA, SS-MRA, and combined first-pass and SS-MRA were calculated. Kappa statistics were used to determine intermodality agreement between MRA and DSA. Overall sensitivity and specificity for detecting significant arterial stenoses with first-pass WB-MRA was 0.70 (95% confidence interval 0.61 to 0.78) and 0.97 (0.94 to 0.99), respectively. In first-pass WB-MRA, the lowest sensitivity was in the infragenicular region, with a value of 0.42 (0.23 to 0.63). Combined analysis of first-pass WB-MRA and SS-MRA increased sensitivity to 0.81 (0.60 to 0.93) in the infragenicular region, with specificity of 0.94 (0.88 to 0.97). Sensitivity and specificity for detecting significant arterial stenoses with isolated infragenicular SS-MRA was 0.47 (0.27 to 0.69) and 0.86 (0.78 to 0.91), respectively. Intermodality agreement between MRA and DSA in the infragenicular region was moderate for first-pass WB-MRA ({kappa} = 0.49), fair for SS-MRA ({kappa} = 0.31), and good for combined first-pass/SS-MRA ({kappa} = 0.71). Addition of infragenicular SS-MRA to first-pass WB MRA improves diagnostic performance.

Nielsen, Yousef W., E-mail: yujwni01@heh.regionh.d [University Hospital at Herlev, Department of Radiology (Denmark); Eiberg, Jonas P. [Rigshospitalet, Department of Vascular Surgery (Denmark); Logager, Vibeke B. [University Hospital at Herlev, Department of Radiology (Denmark); Just, Sven [University Hospital at Gentofte, Department of Radiology (Denmark); Schroeder, Torben V. [Rigshospitalet, Department of Vascular Surgery (Denmark); Thomsen, Henrik S. [University Hospital at Herlev, Department of Radiology (Denmark)

2010-06-15T23:59:59.000Z

285

CALiPER Retail Lamps Study RRL3.2 Lumen and Chromaticity Maintenance of LED A lamps Operated in Steady-State Conditions  

SciTech Connect (OSTI)

The lumen depreciation and color shift of 17 different A lamps (15 LED, 1 CFL, 1 halogen) was monitored in the automated long-term test apparatus (ALTA) for more than 7,500 hours. Ten samples of each lamp model were tested, with measurements recorded on a weekly basis. The lamps were operated continuously at an ambient temperature of 45°C (-1°C). Importantly, the steady-state test conditions were not optimized for inducing catastrophic failure for any of the lamp technologies—to which thermal cycling is a strong contributor— and are not typical of normal use patterns—which usually include off periods where the lamp cools down. Further, the test conditions differ from those used in standardized long-term test methods (i.e., IES LM-80, IES LM-84), so the results should not be directly compared. On the other hand, the test conditions are similar to those used by ENERGY STAR (when elevated temperature testing is called for). Likewise, the conditions and assumptions used by manufacturers to generated lifetime claims may vary; the CALiPER long-term data is informative, but cannot necessarily be used to discredit manufacturer claims. The test method used for this investigation should be interpreted as one more focused on the long-term effects of elevated temperature operation, at an ambient temperature that is not uncommon in luminaires. On average, the lumen maintenance of the LED lamps monitored in the ALTA was better than benchmark lamps, but there was considerable variation from lamp model to lamp model. While three lamp models had average lumen maintenance above 99% at the end of the study period, two products had average lumen maintenance below 65%, constituting a parametric failure. These two products, along with a third, also exhibited substantial color shift, another form of parametric failure. While none of the LED lamps exhibited catastrophic failure—and all of the benchmarks did—the early degradation of performance is concerning, especially with a new technology trying to build a reputation with consumers. Beyond the observed parametric failures nearly half of the products failed to meet early-life thresholds for lumen maintenance, which were borrowed from ENERGY STAR specifications. That is, the lumen maintenance was sufficiently low at 6,000 hours that seven of the products are unlikely to have lumen maintenance above 70% at their rated lifetime (which was usually 25,000 hours). Given the methods used for this investigation—most notably continuous operation—the results should not be interpreted as indicative of a lamp’s performance in a typical environment. Likewise, these results are not directly relatable to manufacturer lifetime claims. This report is best used to understand the variation in LED product performance, compare the robustness of LED lamps and benchmark conventional lamps, and understand the characteristics of lumen and chromaticity change. A key takeaway is that the long-term performance of LED lamps can vary greatly from model to model (i.e., the technology is not homogenous), although the lamp-to-lamp consistency within a given model is relatively good. Further, operation of LED lamps in an enclosed luminaire (or otherwise in high ambient temperatures), can induce parametric failure of LEDs much earlier than their rated lifetime; manufacturer warnings about such conditions should be followed if performance degradation is unacceptable.

Royer, Michael P.; McCullough, Jeffrey J.; Tucker, Joseph C.

2014-12-01T23:59:59.000Z

286

COMPLETE ASSESSMENT OF LV AND RV FUNCTION AND VOLUME IN A SINGLE BREATHOLD USING REAL-TIME, SPIRAL, STEADY-STATE FREE PRECESSION  

E-Print Network [OSTI]

Medicine, Stanford University, Palo Alto, CA, United States, 2 Electrical Engineering, Stanford University, Palo Alto, CA, United States, 3 Palo Alto Medical Research Foundation, Palo Alto, CA, United States failure population given the need for long acquisition times, requirement for multiple patient breath

Southern California, University of

287

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

E-Print Network [OSTI]

safety and cost. Third, Li-Ion battery designs are betterattributes of one type of Li-Ion battery cannot necessarilycapabilities. In any case, Li-Ion battery technologies hold

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

2008-01-01T23:59:59.000Z

288

570 2008 IEEE International Solid-State Circuits Conference ISSCC 2008 / SESSION 31 / RF & mm-WAVE POWER AMPLIFIERS / 31.7  

E-Print Network [OSTI]

570 · 2008 IEEE International Solid-State Circuits Conference ISSCC 2008 / SESSION 31 / RF & mm supply voltages that is very useful for a low-battery-voltage solution. However, it is not compatible with the higher voltages presented by the Li-ion batteries which under charging situations can present supply

Hajimiri, Ali

289

BATTERY STORAGE CONTROL FOR STEADYING RENEWABLE POWER GENERATION  

E-Print Network [OSTI]

pro- duction to come from renewable resources. In the 2011 State of the Union Address, President ObamaBATTERY STORAGE CONTROL FOR STEADYING RENEWABLE POWER GENERATION By Shengyuan (Mike) Chen, Emilie-626-7370 URL: http://www.ima.umn.edu #12;Battery Storage Control for Steadying Renewable Power Generation

290

Time-dependent analytic solutions of quasi-steady shocks with cooling  

E-Print Network [OSTI]

I present time-dependent analytical solutions of quasi-steady shocks with cooling, where quasi-steady shocks are objects composed of truncated steady-state models of shocks at any intermediate time. I compare these solutions to simulations with a hydrodynamical code and finally discuss quasi-steady shocks as approximations to time-dependent shocks. Large departure of both the adiabatic and steady-state approximations from the quasi-steady solution emphasise the importance of the cooling history in determining the trajectory of a shock.

P. Lesaffre

2007-05-22T23:59:59.000Z

291

ORNL rod-bundle heat-transfer test data. Volume 7. Thermal-Hydraulic Test Facility experimental data report for test series 3. 07. 9 - steady-state film boiling in upflow  

SciTech Connect (OSTI)

Thermal-Hydraulic Test Facility (THTF) test series 3.07.9 was conducted by members of the Oak Ridge National Laboratory Pressurized-Water Reactor (ORNL-PWR) Blowdown Heat Transfer (BDHT) Separate-Effects Program on September 11, September 18, and October 1, 1980. The objective of the program is to investigate heat transfer phenomena believed to occur in PWRs during accidents, including small- and large-break loss-of-coolant accidents. Test series 3.07.9 was designed to provide steady-state film boiling data in rod bundle geometry under reactor accident-type conditions. This report presents the reduced instrument responses for THTF test series 3.07.9. Also included are uncertainties in the instrument responses, calculated mass flows, and calculated rod powers.

Mullins, C.B.; Felde, D.K.; Sutton, A.G.; Gould, S.S.; Morris, D.G.; Robinson, J.J.

1982-05-01T23:59:59.000Z

292

Accelerated Iterative Method for Solving Steady Solutions of Linearized Atmospheric Models  

E-Print Network [OSTI]

Accelerated Iterative Method for Solving Steady Solutions of Linearized Atmospheric Models Masahiro approach, referred to as the accelerated iterative method (AIM), is developed for solving steady state, respectively. For ensuring the accelerated asymptotic convergence of iterative procedure

Watanabe, Masahiro

293

Estimation of steady-state and transcient power distributions for the RELAP analyses of the 1963 loss-of-flow and loss-of-pressure tests at BR2.  

SciTech Connect (OSTI)

To support the safety analyses required for the conversion of the Belgian Reactor 2 (BR2) from highly-enriched uranium (HEU) to low-enriched uranium (LEU) fuel, the simulation of a number of loss-of-flow tests, with or without loss of pressure, has been undertaken. These tests were performed at BR2 in 1963 and used instrumented fuel assemblies (FAs) with thermocouples (TC) imbedded in the cladding as well as probes to measure the FAs power on the basis of their coolant temperature rise. The availability of experimental data for these tests offers an opportunity to better establish the credibility of the RELAP5-3D model and methodology used in the conversion analysis. In order to support the HEU to LEU conversion safety analyses of the BR2 reactor, RELAP simulations of a number of loss-of-flow/loss-of-pressure tests have been undertaken. Preliminary analyses showed that the conservative power distributions used historically in the BR2 RELAP model resulted in a significant overestimation of the peak cladding temperature during the transient. Therefore, it was concluded that better estimates of the steady-state and decay power distributions were needed to accurately predict the cladding temperatures measured during the tests and establish the credibility of the RELAP model and methodology. The new approach ('best estimate' methodology) uses the MCNP5, ORIGEN-2 and BERYL codes to obtain steady-state and decay power distributions for the BR2 core during the tests A/400/1, C/600/3 and F/400/1. This methodology can be easily extended to simulate any BR2 core configuration. Comparisons with measured peak cladding temperatures showed a much better agreement when power distributions obtained with the new methodology are used.

Dionne, B.; Tzanos, C. P. (Nuclear Engineering Division)

2011-05-23T23:59:59.000Z

294

9/6/10 9:41 PMAPS -51st Annual Meeting of the APS Division of Plasma Physics -Event -...onal Heating: Unsteady Dynamics and Scaling in Statistical Steady State Page 1 of 2http://meetings.aps.org/Meeting/DPP09/Event/109258  

E-Print Network [OSTI]

Abstract ID: BAPS.2009.DPP.GM9.2 Abstract: GM9.00002 : The Tectonics Model of Coronal Heating: Unsteady Dynamics and Scaling in Statistical Steady State 9:55 AM­10:15 AM Preview Abstract Authors: C.S. Ng. Ng and A. Bhattacharjee, Astrophys. J., {\\bf 675}, 899 (2008)]. Our numerical work has now been

Ng, Chung-Sang

295

Reducing Transient and Steady State Electricity Consumption  

E-Print Network [OSTI]

, single-stage heat pump air conditioner (AC). To study this setup, we have built the Berkeley Retrofitted that are used by HVAC equipment. Many homes use a single- stage heat pump that cools air at a constant rate , Fellow IEEE, and Claire Tomlin, Fellow IEEE ABSTRACT | Heating, ventilation, and air conditioning (HVAC

Culler, David E.

296

Structural Integration of Silicon Solar Cells and Lithium-ion Batteries Using Printed Electronics  

E-Print Network [OSTI]

state lithium-ion (Li-ion) battery were adhesively joinedfilm solid state Li-ion battery was not able to withstand5.8 The performance of the Li-ion battery under tensile

Kang, Jin Sung

2012-01-01T23:59:59.000Z

297

Steady quantum coherence in non-equilibrium environment  

E-Print Network [OSTI]

We study the steady state of a three-level system in contact with a non-equilibrium environment, which is composed of two independent heat baths at different temperatures. We derive a master equation to describe the non-equilibrium process of the system. For the three level systems with two dipole transitions, i.e., the $\\Lambda$-type and V-type, we find that the interferences of two transitions in a non-equilibrium environment can give rise to non-vanishing steady quantum coherence, namely, there exist non-zero off-diagonal terms in the steady state density matrix (in the energy representation). Moreover, the non-vanishing off-diagonal terms increase with the temperature difference of the two heat baths. Such interferences of the transitions were usually omitted by secular approximation, for it was usually believed that they only take effect in short time behavior and do not affect the steady state. Here we show that, in non-equilibrium systems, such omission would lead to the neglect of the steady quantum coherence.

Sheng-Wen Li; C. Y. Cai; C. P. Sun

2014-07-16T23:59:59.000Z

298

Quasi-Steady Magnetoplasmadynamic Thruster Performance E.Y. Choueiri  

E-Print Network [OSTI]

programs. Second, the regime in which MPDTs start to become efficient is also that in which cathode erosion] in alkali metal (specifically lithium) MPDTs with multi-channel cathodes. These steady-state thrusters, have substantially lower cathode erosion rates[6, 7] with the added benefit of better performance

Choueiri, Edgar

299

GM Li-Ion Battery Pack Manufacturing  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

300

Li-Ion Battery Cell Manufacturing  

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

Corp. LG Chem Chemicals Electronics Comm.& Services *LG Chem *LG Hausys *LG Household & Health Care *LG Life Sciences *LG MMA *LG Electronics *LG Display *LG Innotek *Hiplaza...

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


301

Generalized one-dimensional, steady, compressible flow  

SciTech Connect (OSTI)

The present development and testing of a generalized method for analytically examining 1D steady flow of perfect gases allows area change, heat transfer, friction, and mass injection. Generalized flow functions are developed, and sample tables are calculated and tested for both simple cases and combined changes. Normal shocks are noted to occur from the supersonic portion of these loci to the subsonic portion, in a manner analogous to simple-change behavior. 9 refs.

Young, F.M. (Lamar Univ., Beaumont, TX (United States))

1993-01-01T23:59:59.000Z

302

Steady State Control of the Cellular Response to Stress /  

E-Print Network [OSTI]

Professor Professor Alexander Hoffmann, Chair Pavel Pevzner,M; Elkan, Charles; Hoffmann, Alexander. The dissertationBehar and Alexander Hoffmann. Understanding the temporal

Loriaux, Paul Michael

2013-01-01T23:59:59.000Z

303

Steady state thermal hydraulic analysis of hydride fueled BWRs  

E-Print Network [OSTI]

(cont.) Since the results obtained in the main body of the analysis account only for thermal-hydraulic constraints, an estimate of the power reduction due to the application of neutronic constraints is also performed. This ...

Ferroni, Paolo, Ph. D. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z

304

Numerical Calculations of Steady State Microwave Plasma Parameters  

E-Print Network [OSTI]

eV of energy per ionization to the background neutrals. The neutral gas is assumed to be hydrogen was motivated by a desire to predict the plasma parameters in the ELMO Bumpy Torus presently under construction is approximated by a complicated analytic function of electron energy. The electrons and ions are assumed

Sprott, Julien Clinton

305

Multiple Steady States in Ideal Two-Product Distillation  

E-Print Network [OSTI]

not explain why the multiplicity was predicted only by the NRTL and UNIQUAC activity coefficient models

Skogestad, Sigurd

306

Steady state kinetic analyses of nitroalkane oxidase mutants  

E-Print Network [OSTI]

Nitroalkane oxidase (NAO) catalyzes the oxidation of neutral nitroalkanes to aldehydes and ketones with oxygen consumption and the production of hydrogen peroxide and nitrite. The enzyme is a flavoprotein from the fungus Fusarium oxysporum...

Bozinovski, Dragana Milivoj

2009-05-15T23:59:59.000Z

307

Steady state deformation of the Coso Range, east central California...  

Open Energy Info (EERE)

from satellite radar interferometry Abstract Observations of deformation from 1992 to 1997 in the southern Coso Range using satellite radar interferometry show deformation rates...

308

On fast integration to steady state and earlier times  

E-Print Network [OSTI]

Jul 18, 2008 ... Let us define the energy product and corresponding energy norm with ...... size pose a challenge when contemplating the practical usage of.

2008-07-18T23:59:59.000Z

309

Steady-state estuarine modeling of the Brownsville ship channel  

E-Print Network [OSTI]

. Inflow Quantity/Quality, Brownsville Ship Channel 10. Wind Occurrences, Brownsville Ship Channel Location: CMD Platform . 11. Salinity Measurements, San Martin Lake Discharge Ditch, July 1975 . 12. Characteristic Non-Point Source Parameters 13. Waste... Lake System Brownsville Ship Channel Physical Profile Hydraulic Characteristics Point Source Waste Loads Evaluation Hydrology CHAPTER II I. MATHEMATICAL MODEL SIMULATION Introduction Description of Mathematical Model "ESTPOL VERSION II" Basin...

Maldonado, Roberto Jaime

2012-06-07T23:59:59.000Z

310

ORC Closed Loop Control Systems for Transient and Steady State...  

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

waste heat recovery system running automatically over various drive cycles. p-26wright.pdf More Documents & Publications Development of an ORC system to improve HD truck...

311

Optimal monitoring and visualization of steady state power system operation  

E-Print Network [OSTI]

observable islands. To guard against unexpected failures of PMUs, the numerical method is extended to account for single PMU loss. In the last part of this dissertation, a 3D graphic user interface for power system analysis is developed. It supports two basic...

Xu, Bei

2009-06-02T23:59:59.000Z

312

Steady state deformation of the Coso Range, east central California,  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty Ltd JumpGTZHolland,0162112°,St.StanlyEnergyInformation WisterSte.inferred

313

Observation of State of Charge Distributions in Lithium-ion Battery Electrodes  

SciTech Connect (OSTI)

Current lithium-ion battery technology is gearing towards meeting the robust demand of power and energy requirements for all-electric transportation without compromising on the safety, performance, and cycle life. The state-of-charge (SOC) of a Li-ion cell can be a macroscopic indicator of the state-of-health of the battery. The microscopic origin of the SOC relates to the local lithium content in individual electrode particles and the effective ability of Li-ions to transport or shuttle between the redox couples through the cell geometric boundaries. Herein, micrometer-resolved Raman mapping of a transition-metal-based oxide positive electrode, Li{sub 1-x}(Ni{sub y}Co{sub z}Al{sub 1-y-z})O{sub 2}, maintained at different SOCs, is shown. An attempt has been made to link the underlying changes to the composition and structural integrity at the individual particle level. Furthermore, an SOC distribution at macroscopic length scale of the electrodes is presented.

Remillard, Jeffrey [Ford Research and Advanced Engineering, Ford Motor Company; O'Neil, Ann E [Ford Research and Advanced Engineering, Ford Motor Company; Bernardi, Dawn [Ford Research and Advanced Engineering, Ford Motor Company; Ro, Tina J [Massachusetts Institute of Technology (MIT); Miller, Ted [Ford Motor Company; Neitering, Ken [Ford Research and Advanced Engineering, Ford Motor Company; Go, Joo-Young [SB Limotive, Korea; Nanda, Jagjit [ORNL

2011-01-01T23:59:59.000Z

314

Steady-sate and load-follow characteristics of various BWR fuel designs  

SciTech Connect (OSTI)

This paper describes the results of an irradiation study carried out in the Halden boiling water reactor (HBWR). The objective of this irradiation was to clarify the performance of various BWR fuel designs - helium prepressurization (0.3 MPa), pellet shape modification (annular and short-length annular) and barrier cladding (copper and zirconium) - under steady-state and load-follow operations.

Takei, K.; Kogai, T.; Matsumoto, T.; Umehara, H.; Uchida, M.

1986-01-01T23:59:59.000Z

315

On a necessary criterion for stability of steady solutions of complex Ginzburg-Landau equation -- a counterexample to the 'maximum entropy production principle'  

E-Print Network [OSTI]

A maximum entropy production principle (MEPP) has been postulated to be a criterion of stability for steady states of open systems [Martyushev et al., Phys. Rep. 426, 1 (2006)]. We find a necessary condition for stability of steady solutions of the complex Ginzburg-Landau equation. This condition violates MEPP.

Di Vita, Andrea

2014-01-01T23:59:59.000Z

316

Steady periodic gravity waves with surface tension  

E-Print Network [OSTI]

In this paper we consider two-dimensional, stratified, steady water waves propagating over an impermeable flat bed and with a free surface. The motion is assumed to be driven by capillarity (that is, surface tension) on the surface and a gravitational force acting on the body of the fluid. We prove the existence of global continua of classical solutions that are periodic and traveling. This is accomplished by first constructing a 1-parameter family of laminar flow solutions, $\\mathcal{T}$, then applying bifurcation theory methods to obtain local curves of small amplitude solutions branching from $\\mathcal{T}$ at an eigenvalue of the linearized problem. Each solution curve is then continued globally by means of a degree theoretic theorem in the spirit of Rabinowitz. Finally, we complement the degree theoretic picture by proving an alternate global bifurcation theorem via the analytic continuation method of Dancer.

Samuel Walsh

2009-11-06T23:59:59.000Z

317

Electrolytes and Separators for High Voltage Li Ion Cells  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

318

Investigation of critical parameters in Li-ion battery electrodes...  

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

proprietary, confidential, or otherwise restricted information 2 * PI joined BATT and LBNL in FY09 * Project start Sep '09 * Project end Aug '11 * 80% complete * Barriers...

319

Lithium Source For High Performance Li-ion Cells  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

320

Li-ion dynamics and reactivity on the nanoscale  

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

. Ionic phenomena are at the core of the operation of solid oxide and polymer electrolyte fuel cells, which offer some of the highest efficiencies of fuel-to-energy conversion 5-7...

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


321

IMPROVEMENT OF THERMAL STABILITY OF LI-ION BATTERIES BY  

E-Print Network [OSTI]

· Overall Technology Assessment · Appendices o Appendix A: Final Report (under separate cover) o Appendix B Funding: $75,000 Term: July 2002 ­ June 2003 PIER Subject Area: Renewable Energy Technologies #12;Page i · Renewable Energy Technologies · Environmentally-Preferred Advanced Generation · Energy-Related Environmental

322

Construction of a Li Ion Battery (LIB) Cathode Production Plant...  

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

2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting arravt007esconner2012p.pdf More Documents & Publications...

323

Improved Positive Electrode Materials for Li-ion Batteries  

E-Print Network [OSTI]

Hollow, porous, or dense particles can be produced with very narrow size distributions, spanning the nano

Conry, Thomas Edward

2012-01-01T23:59:59.000Z

324

High Voltage Electrolytes for Li-ion Batteries  

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

below 4.5 V; * Sulfone-based solvents showed anodic stability up to 5.8 V but: * SEI chemistry from reduction of sulfones does not provide protection of graphitic anodes * Most...

325

Electrolytes in Support of 5 V Li-ion Chemistries  

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

below 4.5 V; * Sulfone-based solvents showed anodic stability up to 5.8 V but: * SEI chemistry from reduction of sulfones does not provide protection of graphitic anodes * Most...

326

High Voltage Electrolytes for Li-ion Batteries  

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

Program 3 3.5 4 4.5 5 0 0.5 1 1.5 CapacitymAh 80th 1st 50th 1.0 m LiPF 6 in ECEMC (30:70) with 1% ARL-3 on LiNi 0.5 Mn 1.5 O 4 3 3.5 4 4.5 5 0 0.5 1 1.5 CapacitymAh...

327

High Voltage Electrolytes for Li-ion Batteries  

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

0.992 0.994 0.996 0.998 1 0 100 200 300 400 500 600 700 Baseline: 1.2 M LiPF 6 in ECEMC (30:70) Baseline + 5 mM PFBP Baseline + 10 mM AFAC Cycle Number ANL LMNOGR Full Cells...

328

Polymer graphite composite anodes for Li-ion batteries  

E-Print Network [OSTI]

­ Polarization resistance C2 ­ Double layer capacitance #12;Equivalent circuit parameters for polymer composite%polymer 6%Polymer 7.8%Polymer 8.4%Polymer #12;Equivalent circuit used to fit the experimental data R R1 R2 C2C1 DPE1 DPE2 R ­ ohmic resistance R1 ­ SEI layer resistance C1 ­ SEI layer capacitance R2

Popov, Branko N.

329

High Capacity Graphite Anodes for Li-Ion battery applications  

E-Print Network [OSTI]

­ Polarization resistance Cdl ­ Double layer capacitance #12;Equivalent circuit parameters for polymer compositeZ(g) Bare 5%Sn 10%Sn15%Sn 20%Sn #12;Equivalent circuit used to fit the experimental impedance data R R1 RP CdlC1 DPE1 DPE2 R ­ ohmic resistance R1 ­ SEI layer resistance C1 ­ SEI layer capacitance RP

Popov, Branko N.

330

GM Li-Ion Battery Pack Manufacturing | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject: Guidance for natural gas as aGEA HonorsGENIIJune0032 DOE

331

GM Li-Ion Battery Pack Manufacturing | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject: Guidance for natural gas as aGEA HonorsGENIIJune0032

332

GM Li-Ion Battery Pack Manufacturing | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject: Guidance for natural gas as aGEA HonorsGENIIJune00320

333

Searching for Sustainable and Greener Li-ion Batteries  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2) Sr (2)ScienceScientists InSearchsuperconduct*

334

Li-Ion Battery Cell Manufacturing | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001 Letter Report: IO1OP001 FebruaryBluffs-Space

335

Investigation of critical parameters in Li-ion battery electrodes |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10 DOE VehicleStationary FuelPresentationDepartment of

336

Automotive Li-ion Battery Cooling Requirements | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd: Scope ChangeL-01-06 AuditAugust 5,Re evised2009 DOE

337

Batteries - Next-generation Li-ion batteries Breakout session  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd: Scope ChangeL-01-06Hot-Humid-Basic Energy20585

338

Fluorinated Electrolyte for 5-V Li-Ion Chemistry  

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

and evaluation of 10 mAh pouch cells in the lab. - Delivery of twelve 10 mAh pouch cells to DOE for testing and verification. Proposed Future Work 29 PHEV and EV batteries...

339

Construction of a Li Ion Battery (LIB) Cathode Production Plant...  

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

1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation arravt008esdicarlo2011p.pdf More Documents & Publications...

340

High Voltage Electrolytes for Li-ion Batteries  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

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


341

Method and apparatus for adapting steady flow with cyclic thermodynamics  

DOE Patents [OSTI]

Energy transfer apparatus has a resonator for supporting standing acoustic waves at a selected frequency with a steady flow process fluid thermodynamic medium and a solid medium having heat capacity. The fluid medium and the solid medium are disposed within the resonator for thermal contact therebetween and for relative motion therebetween. The relative motion is produced by a first means for producing a steady velocity component and second means for producing an oscillating velocity component at the selected frequency and concomitant wavelength of the standing acoustic wave. The oscillating velocity and associated oscillating pressure component provide energy transfer between the steady flow process fluid and the solid medium as the steady flow process fluid moves through the resonator.

Swift, Gregory W. (Santa Fe, NM); Reid, Robert S. (Los Alamos, NM); Ward, William C. (Santa Fe, NM)

2000-01-01T23:59:59.000Z

342

Electrochemical and Solid-State Lithiation of Graphitic C3N4  

SciTech Connect (OSTI)

: Lithiated graphitic carbon n.itride {C3N4 ) was fabricated by electrochemical and solid-state reactions. The addition of Li to C3N4 results in a reaction between the Li and the graphite-like C3N species in C3N4. This irreversible reaction leads to the formation of Li-CH=NR and Li-N=CR2 species, which are detrimental to anode properties. Suitable nitrogen-doped carbon structures for anode applications are predicted to need high concentrations of pyridinic C-N-C terminal bonds and low concentrations of w quaternary C3N species to boost electronic conductivity and reversibly cycle Li ions. 3.5r-- - - -------, Li 25 + 1 5 0.5 KEYWORDS: mrbo11 uilride, lit!Jiatiou, auode, battery Copaoty tmAIVol

Veith, Gabriel M [ORNL; Baggetto, Loic [ORNL; Adamczyk, Leslie A [ORNL; Guo, Bingkun [ORNL; Brown, Suree [ORNL; Sun, Xiao-Guang [ORNL; Albert, Austin A [ORNL; Humble, James R [University of Tennessee, Knoxville (UTK); Barnes, Craig E. [University of Tennessee, Knoxville (UTK); Bojdys, Michael J [University of Liverpool; Dai, Sheng [ORNL; Dudney, Nancy J [ORNL

2013-01-01T23:59:59.000Z

343

Penn State Chemical Engineering Self-Assembly, Nanoscience, Colloids,  

E-Print Network [OSTI]

, fibrosis and cancer, biosensors #12;Computational Quantum Mechanics Catalysis, fuel cells, batteries and coarse- grained molecular simulation Li ion batteries, fuel cells, solar cells, biomimetic membranes Computational Strain Optimization for Biofuel Production #12;Neutron scattering and spectroscopy, atomistic

Giles, C. Lee

344

Characteristics of various methods for solving steady state and unsteady state distillation problems  

E-Print Network [OSTI]

-1. 2. Implicit Method, n = 0. 3. Comparison of Multi-6-Method and Mah's Method 4. Comparison of Single-6-Method and Mah's Method. Page 40 41 42 43 5. Comparison of Ei. genvalues and Series Evaluation of E(At) in the Solution of Example 3-1. 6.... Comparison of Single-6-Method and Sargent's Method. 7. Comparison of Multi-6-Method and Sargent's Method 8. Computati. on Times 9. Statement of Example 4-1. 10. Solution of Example 4-1 11. Solution of Example 4-2 45 48 50 LIST OF FIGURES Figure 1...

Coco, Vincent Joseph

1965-01-01T23:59:59.000Z

345

BURNER DEVELOPMENT AND OPERABILITY ISSUES ASSOCIATED WITH STEADY FLOWING SYNGAS  

E-Print Network [OSTI]

BURNER DEVELOPMENT AND OPERABILITY ISSUES ASSOCIATED WITH STEADY FLOWING SYNGAS FIRED COMBUSTORS-Mu¨nchen, Garching, Germany This article addresses the impact of syngas fuel composition on combustor blowout, flash flashback mechanisms are present in swirling flows, and the key thermophysical properties of a syngas

Lieuwen, Timothy C.

346

Second-order Schemes for Steady Weakly Compressible Liquid Flows  

E-Print Network [OSTI]

]. Under such circumstances, the speed of sound is much larger than the velocity of the liquid, resulting-differences, such flows may display compressibility effects. Mach number, the ratio of fluid velocity to speed of sound1 Second-order Schemes for Steady Weakly Compressible Liquid Flows I. J. Keshtiban , F. Belblidia

Grant, P. W.

347

DYNAMICS & CONTROL OF UNDERWATER GLIDERS I: STEADY MOTIONS  

E-Print Network [OSTI]

underwater vehicle which uses gravity for propulsion. Underwater gliders are winged underwater vehicles whichDYNAMICS & CONTROL OF UNDERWATER GLIDERS I: STEADY MOTIONS N. Mahmoudian, J. Geisbert, & C. Woolsey Blacksburg, VA 24060 www.unmanned.vt.edu June 6, 2009 Technical Report No. VaCAS-2007-01 Copyright c 2007 #12

Virginia Tech

348

VOLUME 78, NUMBER 5 P H Y S I C A L R E V I E W L E T T E R S 3 FEBRUARY 1997 Steady-State Confinement of Non-neutral Plasmas by Rotating Electric Fields  

E-Print Network [OSTI]

]. This process is analogous to an in- duction motor, since the applied electric field both creates and couples-State Confinement of Non-neutral Plasmas by Rotating Electric Fields X.-P. Huang,* F. Anderegg, E. M. Hollmann, C. F "rotating wall" electric fields to spin up a non-neutral plasma in a Penning-Malmberg trap, resulting

California at San Diego, University of

349

ON THE EXISTENCE OF STEADY PERIODIC CAPILLARY-GRAVITY STRATIFIED WATER WAVES  

E-Print Network [OSTI]

points for steady water waves. The condition which ensures the lack of stagnation points for 1991ON THE EXISTENCE OF STEADY PERIODIC CAPILLARY-GRAVITY STRATIFIED WATER WAVES DAVID HENRY AND BOGDAN­VASILE MATIOC Abstract. We prove the existence of small steady periodic capillary-gravity water waves

350

Transient competitive complexation in biological kinetic isotope fractionation explains non-steady isotopic effects: Theory and application to denitrification in soils  

SciTech Connect (OSTI)

The theoretical formulation of biological kinetic reactions in isotopic applications often assume first-order or Michaelis-Menten-Monod kinetics under the quasi-steady-state assumption to simplify the system kinetics. However, isotopic e ects have the same order of magnitude as the potential error introduced by these simpli cations. Both formulations lead to a constant fractionation factor which may yield incorrect estimations of the isotopic effect and a misleading interpretation of the isotopic signature of a reaction. We have analyzed the isotopic signature of denitri cation in biogeochemical soil systems by Menyailo and Hungate [2006], where high {sup 15}N{sub 2}O enrichment during N{sub 2}O production and inverse isotope fractionation during N{sub 2}O consumption could not be explained with first-order kinetics and the Rayleigh equation, or with the quasi-steady-state Michaelis-Menten-Monod kinetics. When the quasi-steady-state assumption was relaxed, transient Michaelis-Menten-Monod kinetics accurately reproduced the observations and aided in interpretation of experimental isotopic signatures. These results may imply a substantial revision in using the Rayleigh equation for interpretation of isotopic signatures and in modeling biological kinetic isotope fractionation with first-order kinetics or quasi-steady-state Michaelis-Menten-Monod kinetics.

Maggi, F.M.; Riley, W.J.

2009-06-01T23:59:59.000Z

351

Selfgravitation in a general-relativistic accretion of steady fluids  

E-Print Network [OSTI]

The selfgravity of an infalling gas can alter significantly the accretion of gases. In the case of spherically symmetric steady flows of polytropic perfect fluids the mass accretion rate achieves maximal value when the mass of the fluid is 1/3 of the total mass. There are two weakly accreting regimes, one over-abundant and the other poor in fluid content. The analysis within the newtonian gravity suggests that selfgravitating fluids can be unstable, in contrast to the accretion of test fluids.

Bogusz Kinasiewicz; Patryk Mach; Edward Malec

2006-06-20T23:59:59.000Z

352

2010 Ceramics, Solid State Studies in Gordon Research Conference  

SciTech Connect (OSTI)

The 2010 Gordon Conference on Solid State Studies in Ceramics will present forefront research on ceramic materials in energy conversion, storage, and environmental sustainability. Oxide materials in advanced Li-ion batteries will be featured, including first principles computational methods, new experimental methods, novel synthesis, and the design of batteries that exploit nanoscale cathode materials. Several speakers address advances in oxides for solar applications, including photo-catalysts for solar hydrogen production and dye sensitized solar cells, along with thin film photovoltaics. Fast ionic conducting ceramics in electrochemical energy conversion and storage will be addressed for fuel cells and electrochemical storage. New concepts for electrochemical capacitor materials will be addressed, as will thermoelectric, geopolymers, and ceramics in nuclear energy. The Conference will bring together investigators at the forefront of their field as well as junior scientists in a collegial atmosphere, with programmed discussion sessions and informal gatherings in the afternoons and evenings. Poster presentations provide opportunities for junior scientists and graduate students to present their work and exchange ideas with leaders in the field. This Conference provides an avenue for scientists from different disciplines to explore new ideas and promotes cross-disciplinary collaborations in the various research areas represented.

John Halloran

2010-08-20T23:59:59.000Z

353

Steady mirror structures in a plasma with pressure anisotropy  

E-Print Network [OSTI]

In the first part we present a review of our results concerning the weakly nonlinear regime of the mirror instability in the framework of an asymptotic model. This model belongs to the class of gradient type systems for which the free energy can only decrease in time. It reveals a behavior typical for subcritical bifurcations: below the mirror instability threshold, all localized stationary structures are unstable, while above threshold, the system displays a blow-up behavior. It is shown that taking the electrons into account (non-zero temperature) does not change the structure of the asymptotic model. For bi-Maxwellian distribution functions for both electrons and ions, the model predicts the formation of magnetic holes. The second part contains original results concerning two-dimensional steady mirror structures which can form in the saturated regime. Based on Grad-Shafranov-like equations, a gyrotropic plasma, where the pressures in the static regime are only functions of the amplitude of the local magnet...

Kuznetsov, E A; Ruban, V P; Sulem, P L

2015-01-01T23:59:59.000Z

354

Micro Fuel Cells Direct Methanol Fuel Cells  

E-Print Network [OSTI]

energy density of 1.5 Wh/cc; 1.5Wh/g = X5; x10 energy density of Li ion battery * Direct & complete Content (Wh) Volume(cm^3) Li-Ion Battery DMFC #12;Micro Fuel Cells TM State of MTI Micro Fuel Cells Energy Content (Wh) Volume(cm^3) Li-Ion Battery DMFC #12;Direct Methanol Fuel Cell Technology

355

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

E-Print Network [OSTI]

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

Heller, Eric

356

Stability of steady gravity waves generated by a moving localised pressure disturbance in water of  

E-Print Network [OSTI]

disturbance in water of finite depth. The steady waves take the form of a downstream wavetrain for subcritical and , the subcritical solutions were wavetrains solutions similar to those found in deep water, and became dragStability of steady gravity waves generated by a moving localised pressure disturbance in water

357

COMPARISON OF STEADY-STATE SVC MODELS IN LOAD FLOW CALCULATIONS  

E-Print Network [OSTI]

local reactive power consumption by injecting reactive power to electrical networks. There are also transmission systems (FACTS) utilize high power semiconductor devices to control the reactive power flow), is to connect in series a controllable reactance in a power network so that the electrical distance between

Bak-Jensen, Birgitte

358

Reconciling steady-state Kalman and alpha-beta filter design  

E-Print Network [OSTI]

The deterministic design of the alpha-beta filter and the stochastic design of its Kalman counterpart are placed on a common basis. The first step is to find the continuous-time filter architecture which transforms into the alpha-beta discrete...

Painter, John H.; Kerstetter, D.; Jowers, S.

359

Horizontal Steam Generator Thermal-Hydraulics at Various Steady-State Power Levels  

SciTech Connect (OSTI)

Three-dimensional computer simulation and analyses of the horizontal steam generator thermal-hydraulics of the WWER 1000 nuclear power plant have been performed for 50% and 75% partial loads, 100% nominal load and 110% over-load. Presented results show water and steam mass flow rate vectors, steam void fraction spatial distribution, recirculation zones, swell level position, water mass inventory on the shell side, and other important thermal-hydraulic parameters. The simulations have been performed with the computer code 3D ANA, based on the 'two-fluid' model approach. Steam-water interface transport processes, as well as tube bundle flow resistance, energy transfer, and steam generation within tube bundles are modelled with {sup c}losure laws{sup .} Applied approach implies non-equilibrium thermal and flow conditions. The model is solved by the control volume procedure, which has been extended in order to take into account the 3D flow of liquid and gas phase. The methodology is validated by comparing numerical and experimental results of real steam generator operational conditions at various power levels of the WWER Novovoronezh, Unit 5. One-dimensional model of the horizontal steam generator has been built with the RELAP 5 standard code on the basis of the multidimensional two-phase flow structure obtained with the 3D ANA code. RELAP 5 and 3D ANA code results are compared, showing acceptable agreement. (authors)

Stevanovic, Vladimir D. [University of Belgrade, Kraljice Marije 16, 11000 Belgrade, Serbia and Montenegro (Yugoslavia); Stosic, Zoran V.; Kiera, Michael; Stoll, Uwe [Framatome ANP GmbH, P.O. Box 3220, 91050 Erlangen (Germany)

2002-07-01T23:59:59.000Z

360

Generalized Steady-state Analysis of Multiphase Interleaved Boost Converter with Coupled Inductors  

E-Print Network [OSTI]

of Wisconsin-Madison College of Engineering Wisconsin Power Electronics Research Center 2559D Engineering Hall that high reliability and efficiency in power electronic systems can be obtained. In addition, it is possible to improve the system characteristics such as maintenance, repair, fault tolerance, and low heat

Lipo, Thomas

Note: This page contains sample records for the topic "li-ion steady state" 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

Spatially varying embedded stochastic galerkin methods for steady-state PDEs.  

SciTech Connect (OSTI)

Existing discretizations for stochastic PDEs, based on a tensor product between the deterministic basis and the stochastic basis, treat the required resolution of uncertainty as uniform across the physical domain. However, solutions to many PDEs of interest exhibit spatially localized features that may result in uncertainty being severely over or under-resolved by existing discretizations. In this report, we explore the mechanics and accuracy of using a spatially varying stochastic expansion. This is achieved through an adaptive refinement algorithm where simple error estimates are used to independently drive refinement of the stochastic basis at each point in the physical domain. Results are presented comparing the accuracy of the adaptive techinque to the accuracy achieved using uniform refinement.

Cyr, Eric Christopher

2013-07-01T23:59:59.000Z

362

Plasma ignition and steady state simulations of the Linac4 H$^{-}$ ion source  

E-Print Network [OSTI]

The RF heating of the plasma in the Linac4 H- ion source has been simulated using an Particle-in-Cell Monte Carlo Collision method (PIC-MCC). This model is applied to investigate the plasma formation starting from an initial low electron density of 1012 m-3 and its stabilization at 1018 m-3. The plasma discharge at low electron density is driven by the capacitive coupling with the electric field generated by the antenna, and as the electron density increases the capacitive electric field is shielded by the plasma and induction drives the plasma heating process. Plasma properties such as e-/ion densities and energies, sheath formation and shielding effect are presented and provide insight to the plasma properties of the hydrogen plasma.

Mattei, S; Yasumoto, M; Hatayama, A; Lettry, J; Grudiev, A

2013-01-01T23:59:59.000Z

363

The steady-state thermal-hydraulic performance of 3500 MWth metal and oxide fueled LMRs  

SciTech Connect (OSTI)

The thermal-hydraulic performance of a 3500 MWth metal and oxide fueled LMR is reported. Orifice zones are defined and coolant flowrates are given for use in safety analyses. The flux calculations were carried out in three-dimensional hexagonal-Z geometry using a finite differenced diffusion theory code. The heating calculations included the transport and deposition of gamma energy. The assembly temperature calculations were performed using a subchannel code.

Vilim, R.B.; Hill, R.N.

1989-03-01T23:59:59.000Z

364

Fundamental approach to TRIGA steady-state thermal-hydraulic CHF analysis.  

SciTech Connect (OSTI)

Methods are investigated for predicting the power at which critical heat flux (CHF) occurs in TRIGA reactors that rely on natural convection for primary flow. For a representative TRIGA reactor, two sets of functions are created. For the first set, the General Atomics STAT code and the more widely-used RELAP5-3D code are each employed to obtain reactor flow rate as a function of power. For the second set, the Bernath correlation, the 2006 Groeneveld table, the Hall and Mudawar outlet correlation, and each of the four PG-CHF correlations for rod bundles are used to predict the power at which CHF occurs as a function of channel flow rate. The two sets of functions are combined to yield predictions of the power at which CHF occurs in the reactor. A combination of the RELAP5-3D code and the 2006 Groeneveld table predicts 67% more CHF power than does a combination of the STAT code and the Bernath correlation. Replacing the 2006 Groeneveld table with the Bernath CHF correlation (while using the RELAP5-3D code flow solution) causes the increase to be 23% instead of 67%. Additional RELAP5-3D flow-versus-power solutions obtained from Reference 1 and presented in Appendix B for four specific TRIGA reactors further demonstrates that the Bernath correlation predicts CHF to occur at considerably lower power levels than does the 2006 Groeneveld table. Because of the lack of measured CHF data in the region of interest to TRIGA reactors, none of the CHF correlations considered can be assumed to provide the definitive CHF power. It is recommended, however, to compare the power levels of the potential limiting rods with the power levels at which the Bernath and 2006 Groeneveld CHF correlations predict CHF to occur.

Feldman, E.; Nuclear Engineering Division

2008-03-30T23:59:59.000Z

365

Fueling requirements for steady-state, high bootstrap current fraction discharges  

E-Print Network [OSTI]

) is a self-contained toroidal plasma with embedded magnetic fields · A Spheromak has comparable poloidal technology ­ Inductive formation but CTs longer in length than Spheromaks Two types of CTs #12;Raman, ITPA

Princeton Plasma Physics Laboratory

366

Layered Pseudo-Steady-State Models for tight commingled gas reservoirs  

E-Print Network [OSTI]

Fig. 5 - Typical Production Rate Performance for a Two-Layer Commingled Reservoir with constant p?& 18 Fig. 6 - Typical Average Reservoir Pressure Performance for Two-Layer Commingled Reservoirs 19 Fig. 7 - Fetkovich Decline Curves 21 Fig. 8... ? Matching Single-Layer Rate Decline With Fetkovich Curves 23 Fig. 9 - Matching a Two-Layer Commingled Reservoir With Fetkovich Curves 24 Fig. 10 - Schematic Flow Chart of the Layered PSS Program 29 Fig. 11 - Matching the Rate for Case b (Optimization...

El-Banbi, Ahmed

1995-01-01T23:59:59.000Z

367

IMPROVEMENT OF MHD STABILITY IN NEGATIVE/WEAK SHEAR CONFIGURATIONS FOR A STEADY STATE TOKAMAK  

E-Print Network [OSTI]

beta limit disruptions observed in high performance negative shear tokamak plasmas may be attributed beta value N as large as 2.5 - 3.5 can be realized for qmin. Hard beta limits due to ideal MHD stability can be improved by reducing the pressure gradient

Hudson, Stuart

368

Steady-state chemical process models. A structural point of view  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 9.2 NRTL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 9.3 Extended NRTL (a

Neumaier, Arnold

369

Modeling integrated photovoltaic-electrochemical devices using steady-state equivalent circuits  

E-Print Network [OSTI]

We describe a framework for efficiently coupling the power output of a series-connected string of single-band-gap solar cells to an electrochemical process that produces storable fuels. We identify the fundamental efficiency ...

Winkler, Mark Thomas

370

Design of a steady state thermal conductivity measurement device for CNT RET polymer composites  

E-Print Network [OSTI]

NY: Taylor & Francis. [10] Tritt, T. M. (2004). MeasurementBulk Materials. In T. M. Tritt, Thermal Conductivity Theory,

Louie, Brian Ming

2011-01-01T23:59:59.000Z

371

Steady-state propagation of a Mode III crack in couple stress elastic materials  

E-Print Network [OSTI]

This paper is concerned with the problem of a semi-infinite crack steadily propagating in an elastic solid with microstructures subject to antiplane loading applied on the crack surfaces. The loading is moving with the same constant velocity as that of the crack tip. We assume subsonic regime, that is the crack velocity is smaller than the shear wave velocity. The material behaviour is described by the indeterminate theory of couple stress elasticity developed by Koiter. This constitutive model includes the characteristic lengths in bending and torsion and thus it is able to account for the underlying microstructure of the material as well as for the strong size effects arising at small scales and observed when the representative scale of the deformation field becomes comparable with the length scale of the microstructure, such as the grain size in a polycrystalline or granular aggregate. The present analysis confirms and extends earlier results on the static case by including the effects of crack velocity and rotational inertia. By adopting the criterion of maximum total shear stress, we discuss the effects of microstructural parameters on the stability of crack propagation.

G. Mishuris; A. Piccolroaz; E. Radi

2012-07-14T23:59:59.000Z

372

STEADY STATE FLOW STUDIES OF SECTIONS IN NATURAL GAS PIPELINE NETWORKS.  

E-Print Network [OSTI]

??Efficient transportation of natural gas is vital to the success of the economy of the US and the world, because of the various uses of… (more)

Ken-Worgu, Kenneth

2008-01-01T23:59:59.000Z

373

Non-Adiabatic Effects on Combustion Front Propagation in Porous Media: Multiplicity of Steady States  

SciTech Connect (OSTI)

The sustained propagation of combustion fronts in porous media is a necessary condition for the success of an in situ combustion project for oil recovery. Compared to other recovery methods, in situ combustion involves the added complexity of exothermic reactions and temperature-dependent chemical kinetics. In the presence of heat losses, the possibility of ignition and extinction (quenching) exists. In this report, we address the properties of combustion fronts propagating at a constant velocity in the presence of heat losses.

Akkutlu, I. Yucel; Yortsos, Yanis C.

2002-03-11T23:59:59.000Z

374

Steady state and transient model of a linear solar concentrator with cylindrical absorber  

SciTech Connect (OSTI)

A linear parabolic collector with integrated absorber pipe assembly is one of the main elements of a solar energy collection system that produces electricity or process heat. This kind of a system must geometrically and thermally be optimized so that a reasonable operating efficiency can be reached. A linear parabolic collector having an absorber, encircled with a cylindrical cavity, has been studied and the geometrical parameters of the system have been optimized before the collector was built and put into operation. The collector having dimensions of 200X95 sq.cm and having a focal length of 60 cm. is built under the view of the optimization procedure. The collector is oriented EW horizontal in the NS tracking mode and the longitudinal deviations of the focal line is examined. The energy distribution along the focal line of the collector is measured using a laser together with a wattmeter. The effects of the thermal and optical parameters on the performance of the system is studied by the use of a theoretical model that is built for the collector absorber system. The value of each parameter is changed from a minimum to a maximum, keeping the other parameters at their average values.

Ecevit, A.

1980-12-01T23:59:59.000Z

375

Design considerations for a steady state fusion reactor's thermal energy dump (TED) with emphasis on SAFFIRE  

SciTech Connect (OSTI)

This work examines the use of a thermal dump to handle the severe particle and energy handling requirements of a diverted plasma. We outline a general approach for evaluating the design parameters and limitations of a thermal dump, considering such things as thermomechanical and erosion effects, compatibility, availability, machinability, coolant recirculation, vacuum pumping, economics, lifetime, etc. To demonstrate how the performance requirements are reflected in design decisions, we apply a solid-walled dump to a small-sized field reversed mirror (FRM). We also examine a liquid-lithium droplet thermal dump and point out some distinct advantages of this new concept over the solid-wall design in reducing stress, erosion, and vacuum pumping problems. The chief disadvantages of this scheme include liquid-metal safe-handling problems, vapor pressure-temperature limitations, and the need for differential pumping if T/sub Li/ > 310/sup 0/C is desired.

Werley, K.A.

1980-01-01T23:59:59.000Z

376

Infrared thermography of a pulsating heat pipe: Flow regimes and multiple steady states  

E-Print Network [OSTI]

, refrigeration, HVAC, auto- mobile sector, space, nuclear and other emerging systems. While in many applications

Khandekar, Sameer

377

An Evaluation of Steady-State Dehumidification Characteristics of Residential Central Air Conditioners, Final Report  

E-Print Network [OSTI]

Conditioners, Air Source HeatPumps, and Sound-Rated Outdoor Unitary Equipment that ARI publishes twice a yearCl], In addition to the ARI certification, many manufacturerspublish detailed performance (capacity, efficiency, and dehumidification) data....2 - Performance and hardware data collectedfor this survey. 3.2 References 1. "Directory of Certified Unitary Air Conditioners, Air Source HeatPumps, and Sound-Rated Outdoor Unitary Equipment", Semi-Annual Issues, Air Conditioning and Refrigeration Institute...

O'Neal, D. L.; Chan, N.; Somasundaram, S.; Katipamula, S.

1987-01-01T23:59:59.000Z

378

Emotional faces boost up steady-state visual responses for braincomputer interface  

E-Print Network [OSTI]

by the user [5], which leads to fatigue and BCI per- formance degradation for standard light emitting diode

Vialatte, François

379

Lumen and Chromaticity Maintenance of LED PAR38 Lamps Operated in Steady-State Conditions  

SciTech Connect (OSTI)

The lumen depreciation and color shift of 38 different lamps (32 LED, 2 CFL, 1 ceramic metal halide [CMH], 3 halogen) were monitored in a specially developed automated long-term test apparatus (ALTA2) for nearly 14,000 hours. Five samples of each lamp model were tested, with measurements recorded on a weekly basis. The lamps were operated continuously at a target ambient temperature between 44°C and 45°C.

Royer, Michael P.

2014-12-01T23:59:59.000Z

380

Particle transport in low-energy ventilation systems. Part 1: theory of steady states  

E-Print Network [OSTI]

of the global population. According to the Energy Information Administration (http://www.eia.doe.gov/) the US of this energy is spent on ventilation of buildings with summer time cooling account for almost 10% of the US total energy budget. To reduce energy consumption various low-energy systems such as displacement

Bolster, Diogo

Note: This page contains sample records for the topic "li-ion steady state" 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

EXISTENCE OF STEADY STATES FOR THE MAXWELL-SCHRODINGER-POISSON SYSTEM  

E-Print Network [OSTI]

focus our attention on the plasma physical case. Similar techniques can be used for extending our¨odinger; Schr¨odinger-Poisson-X; Concentration-Compactness; Standing waves; Semiconductors; Plasma physics 1 in gravita- tion ( = -1) 31, one-dimensional reduction of electron density in plasma physics ( = +1), as well

Boyer, Edmond

382

Steady-State Propagation of a Mode II Crack in Couple Stress Elasticity  

E-Print Network [OSTI]

The present work deals with the problem of a semi-infinite crack steadily propagating in an elastic body subject to plane-strain shear loading. It is assumed that the mechanical response of the body is governed by the theory of couple-stress elasticity including also micro-rotational inertial effects. This theory introduces characteristic material lengths in order to describe the pertinent scale effects that emerge from the underlying microstructure and has proved to be very effective for modeling complex microstructured materials. It is assumed that the crack propagates at a constant sub-Rayleigh speed. An exact full field solution is then obtained based on integral transforms and the Wiener-Hopf technique. Numerical results are presented illustrating the dependence of the stress intensity factor and the energy release rate upon the propagation velocity and the characteristic material lengths in couple-stress elasticity. The present analysis confirms and extends previous results within the context of couple-stress elasticity concerning stationary cracks by including inertial and micro-inertial effects.

P. A. Gourgiotis; A. Piccolroaz

2014-05-13T23:59:59.000Z

383

Steady state method to determine unsaturated hydraulic conductivity at the ambient water potential  

DOE Patents [OSTI]

The present invention relates to a new laboratory apparatus for measuring the unsaturated hydraulic conductivity at a single water potential. One or more embodiments of the invented apparatus can be used over a wide range of water potential values within the tensiometric range, requires minimal laboratory preparation, and operates unattended for extended periods with minimal supervision. The present invention relates to a new laboratory apparatus for measuring the unsaturated hydraulic conductivity at a single water potential. One or more embodiments of the invented apparatus can be used over a wide range of water potential values within the tensiometric range, requires minimal laboratory preparation, and operates unattended for extended periods with minimal supervision.

HUbbell, Joel M.

2014-08-19T23:59:59.000Z

384

The TST: A small Steady-State Tokamak for Integrated Divertor Testing  

SciTech Connect (OSTI)

This report discusses the following topics: The TST program; the TST physics basis; the TST auxiliary H&CD systems; the test divertors; the TST device; and ancillary systems.

Peng, Y.K.M.; Colchin, R.J.; Swain, D.W.; Nelson, B.E.; Monday, J.F.

1993-09-01T23:59:59.000Z

385

Copyright and Disclaimer A RAD-HARD, STEADY-STATE, DIGITAL IMAGING  

E-Print Network [OSTI]

to prevent melting or radiative cooling damage or nonlinear effects from spoiling the measurement. Finally, is outlined. It uses a cooled pinhole camera design, employing a robust, passive, segmented radiation absorber optics to a shielded, high-resolution IR video camera with 0.01 °C temperature resolution. It can make

386

OPTIONS FOR A STEADY-STATE COMPACT FUSION NEUTRON SOURCE M.P. Gryaznevich1  

E-Print Network [OSTI]

) Nuclear Power production: the emerging shortage of fissile fuel, disposal and storage of nuclear waste. This can be achieved in several ways: by recycling high level nuclear waste from conventional nuclear of nuclear waste and fuel and removing Pu from the spent fuel. This combination of "fission + fusion

387

Steady-State Flow-Force Compensation in a Hydraulic Spool Valve  

E-Print Network [OSTI]

A high-speed jet flowing inside of a partially-open hydraulic valve is accompanied by a reaction force, also referred to as flow force. The nature of this force has remained a mystery despite an extensive research effort spanning many decades. The momentum theory on the flow force by Lee and Blackburn (1952) explains the origin of the flow force and offers a design solution to shape the valve spool as a turbine bucket. It provides a model to calculate the compensated flow force as well. This paper shows that the model applies to a different flow case due to incorrect assumptions made. A corrected equation is presented based on a detailed analysis of the static-pressure distribution in the valve cavity as well as on a literature review of pressure loss in diffusers and nozzles. The new equation is based on the compensation taking place upstream of the valve orifice, not downstream as assumed by the momentum theory. The new model can be applied to chamfers or notches on the valve spool without the need to machi...

Lugowski, Jan

2013-01-01T23:59:59.000Z

388

"Fueling method for small, steady-state, aneutronic FRC fusion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNG IHDR€ÍSolar Energy SystemsFebruary 7-8,MarchKnyszek, MatthewThe

389

ORC Closed Loop Control Systems for Transient and Steady State Duty Cycles  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F SSales LLC Order No. EA-178-A1ORAU South Campus Facility ORAUORAU|

390

Modeling Tritium Transport in PbLi Breeder Blankets Under Steady State  

SciTech Connect (OSTI)

Tritium behavior in the breeder/coolant plays a crucial role in keeping the tritium loss under an allowable limit and realizing high tritium recovery efficiency. In this paper, progress toward the development of a comprehensive 3D predictive capability is discussed and presented. The sequence of transport processes leading to tritium release includes diffusion and convection through the PbLi, transfer across the liquid/solid interface, diffusion of atomic tritium through the structure, and dissolution-recombination at the solid/gas interface. Numerical simulation of the coupled individual physics phenomena of tritium transport is performed for DCLL/HCLL type breeder blankets under realistic reactor-like conditions in this paper. Tritium concentration and permeation are presented and the MHD effects are evaluated. Preliminary results shows that the MHD velocity profile has the significant effect in preventing tritium permeation due to the higher convection effects near the wall.

H. Zhang; A. Ying; M. Abdou; B. Merrill

2011-08-01T23:59:59.000Z

391

Optimization of hybrid dynamic/steady-state processes using process integration  

E-Print Network [OSTI]

-batch water purification system was optimized. This problem showed how process integration could be used to optimize a hybrid system and gain insights into the process under many different operating conditions....

Grooms, Daniel Douglas

2009-06-02T23:59:59.000Z

392

U-Tube Steam Generator experiments: steady state and transients analysis using RELAP5/MOD2  

E-Print Network [OSTI]

Thomas K. Blanchat, Texas ARM, for his patience in explaining the RELAP5 code modifications snd for his many helpful suggestions snd comments during this research. I could not have accomplished this without the support snd affection of my family... cause fuel damage. Besides the modeling of the primary and the secondary systems, it is capable of modeling the feedwater train, plant control systems, and core neutronics. The principal new feature of the code is the use of a, two...

Kalyanasundaram, Mathangi

1989-01-01T23:59:59.000Z

393

Steady-state growth in a Hotelling model of resource extraction  

E-Print Network [OSTI]

supply and demand in the world oil market. Working paper.the demand curve for all commodities, including oil anddemand; bauxite, gold, hard coal, natural gas, oil, silver,

Lin, C.-Y. Cynthia; Wagner, Gernot

2007-01-01T23:59:59.000Z

394

Development and application of a steady state code for supercritical carbon dioxide cycles  

E-Print Network [OSTI]

The supercritical CO2 power conversion system is of interest for advanced nuclear reactor applications because the same efficiencies are obtained as for the most developed of the closed gas-turbine cycles (helium-Brayton), ...

Legault, David M. (David Michael)

2006-01-01T23:59:59.000Z

395

Stability of the steady three-dimensional lid-driven flow in a cube and the supercritical flow dynamics  

SciTech Connect (OSTI)

The stability of the steady flow in a lid-driven cube is investigated by a collocation method making use of asymptotic solutions for the singular edges of the cavity up- and downstream of the moving wall. Owing to the rapid convergence of the method high-accuracy critical data are obtained. To determine the critical point subcritical growth rates of small perturbations are extrapolated to zero. We find the bifurcation to be of Hopf-type and slightly subcritical. Above the critical point, the oscillatory flow is symmetric with respect to the symmetric midplane of the cavity and characterized by nearly streamwise vortices in the boundary layer on the wall upstream of the moving wall. The oscillation amplitude grows slowly and seems to saturate. On a long time scale, however, the constant-amplitude oscillations are unstable. The periodic oscillations are interrupted by short bursts during which the oscillation amplitude grows substantially and the spatial structure of the oscillating streamwise vortices changes. Towards the end of each burst the mirror symmetry of the oscillatory flow is lost, the flow returns to the vicinity of the unstable steady state and the growth of symmetric oscillations starts again leading to an intermittent chaotic flow.

Kuhlmann, Hendrik C., E-mail: h.kuhlmann@tuwien.ac.at [Institute of Fluid Mechanics and Heat Transfer, Vienna University of Technology, Resselgasse 3, 1040 Vienna (Austria); Albensoeder, Stefan [Carl von Ossietzky Universität Oldenburg, Ammerländer Heerstraße 136, 26129 Oldenburg (Germany)] [Carl von Ossietzky Universität Oldenburg, Ammerländer Heerstraße 136, 26129 Oldenburg (Germany)

2014-02-15T23:59:59.000Z

396

On the 3D steady flow of a second grade fluid past an obstacle  

E-Print Network [OSTI]

We study steady flow of a second grade fluid past an obstacle in three space dimensions. We prove existence of solution in weighted Lebesgue spaces with anisotropic weights and thus existence of the wake region behind the obstacle. We use properties of the fundamental Oseen tensor together with results achieved in \\cite{Koch} and properties of solutions to steady transport equation to get up to arbitrarily small $\\ep$ the same decay as the Oseen fundamental solution.

Pawe? Konieczny; Ond?ej Kreml

2010-10-29T23:59:59.000Z

397

Soot microstructure in steady and flickering laminar methane/air diffusion flames  

SciTech Connect (OSTI)

An experimental investigation is presented to identify the mechanisms responsible for the enhanced sooting behavior of strongly flickering methane/air jet diffusion flames when compared to their steady counterparts. The work extends the implementation of thermophoretic sampling in flickering, co-flow, laminar, diffusion flames. Acoustic forcing of the fuel flow rate is used to phase lock the periodic flame flicker close to the natural flicker frequency ({approximately} 10 Hz for a burner diameter of {approximately} 1 cm). Soot primary sizes, determined as functions of flame coordinates, indicate that the largest soot primary units in strongly flickering methane/air flames are larger by {approximately} 60% than those measured in steady flames with the same mean reactant flow rates. The primary particle size measurements, when combined with the soot volume fractions reported by other investigators, indicate that soot surface areas in the flickering flame are three to four times larger than those under steady conditions. These results, along with the fact that residence times in the flickering flame are twice as long as those in the steady flame, suggest that specific soot surface growth rates under unsteady combustion conditions can be similar or even lower than those in the corresponding steady flames. Finally, the number of densities of soot primaries in flickering flames are found to be higher by 30--50% than those in steady flames, thus suggesting stronger and/or extended soot inception mechanisms under flickering conditions. The combination of longer flow residence times and greater population of incipient soot particles in flickering flames appears to be primarily responsible for the higher sooting propensity of methane under laminar unsteady combustion conditions.

Zhang, J.; Megaridis, C.M. [Univ. of Illinois, Chicago, IL (United States). Dept. of Mechanical Engineering

1998-03-01T23:59:59.000Z

398

Estimating Power System Dynamic States Using Extended Kalman Filter  

SciTech Connect (OSTI)

Abstract—The state estimation tools which are currently deployed in power system control rooms are based on a steady state assumption. As a result, the suite of operational tools that rely on state estimation results as inputs do not have dynamic information available and their accuracy is compromised. This paper investigates the application of Extended Kalman Filtering techniques for estimating dynamic states in the state estimation process. The new formulated “dynamic state estimation” includes true system dynamics reflected in differential equations, not like previously proposed “dynamic state estimation” which only considers the time-variant snapshots based on steady state modeling. This new dynamic state estimation using Extended Kalman Filter has been successfully tested on a multi-machine system. Sensitivity studies with respect to noise levels, sampling rates, model errors, and parameter errors are presented as well to illustrate the robust performance of the developed dynamic state estimation process.

Huang, Zhenyu; Schneider, Kevin P.; Nieplocha, Jaroslaw; Zhou, Ning

2014-10-31T23:59:59.000Z

399

Effect of tab design on large-format Li-ion cell performance , Gang Luo b  

E-Print Network [OSTI]

to much lower energy density than their coin cell benchmarks. In this work, a 3D computational methodology the cell is operated at high power, which is ubiqui- tous in hybrid and pure electric vehicle (HEV

400

Conductive Rigid Skeleton Supported Silicon as High-Performance Li-Ion Battery Anodes  

SciTech Connect (OSTI)

A cost effective and scalable method is developed to prepare a core-shell structured Si/B4C composite with graphite coating with high efficiency, exceptional rate performance and long-term stability. In this material, conductive B4C with high Mohs hardness serves not only as micro-/nano- millers in the ball-milling process to break down micron-sized Si but also as the conductive rigid skeleton to support the in-situ formed sub-10 nm Si particles to alleviate the volume expansion during charge/discharge. The Si/B4C composite is coated with a few graphitic layers to further improve the conductivity and stability of the composite. The Si/B4C/graphite (SBG) composite anode shows excellent cyclability with a specific capacity of ~822 mAh?g-1 (based on the weight of the entire electrode, including binder and conductive carbon) and ~94% capacity retention over 100 cycles at 0.8C rate. This new structure has the potential to provide adequate storage capacity and stability for practical applications, and good opportunity for large scale manufacturing using commercially available materials and technologies.

Chen, Xilin; Li, Xiaolin; Ding, Fei; Xu, Wu; Xiao, Jie; Cao, Yuliang; Meduri, Praveen; Liu, Jun; Graff, Gordon L.; Zhang, Jiguang

2012-08-08T23:59:59.000Z

Note: This page contains sample records for the topic "li-ion steady state" 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

Computer-Aided Engineering of Batteries for Designing Better Li-Ion Batteries (Presentation)  

SciTech Connect (OSTI)

This presentation describes the current status of the DOE's Energy Storage R and D program, including modeling and design tools and the Computer-Aided Engineering for Automotive Batteries (CAEBAT) program.

Pesaran, A.; Kim, G. H.; Smith, K.; Lee, K. J.; Santhanagopalan, S.

2012-02-01T23:59:59.000Z

402

Advanced Li-Ion Polymer Battery Cell Manufacturing Plant in USA  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

403

Diagnostic Studies to Improve Abuse Tolerance and Life of Li-ion Batteries  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

404

Diagnostic Studies to Improve Abuse Tolerance and Life of Li-ion Batteries  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

405

A Yolk-Shell Design for Stabilized and Scalable Li-Ion Battery Alloy Anodes  

SciTech Connect (OSTI)

Silicon is regarded as one of the most promising anode materials for next generation lithium-ion batteries. For use in practical applications, a Si electrode must have high capacity, long cycle life, high efficiency, and the fabrication must be industrially scalable. Here, we design and fabricate a yolk-shell structure to meet all these needs. The fabrication is carried out without special equipment and mostly at room temperature. Commercially available Si nanoparticles are completely sealed inside conformal, thin, self-supporting carbon shells, with rationally designed void space in between the particles and the shell. The well-defined void space allows the Si particles to expand freely without breaking the outer carbon shell, therefore stabilizing the solid-electrolyte interphase on the shell surface. High capacity (?2800 mAh/g at C/10), long cycle life (1000 cycles with 74% capacity retention), and high Coulombic efficiency (99.84%) have been realized in this yolk-shell structured Si electrode.

Liu, Nian; Wu, Hui; Mcdowell, Matthew T.; Yao, Yan; Wang, Chong M.; Cui, Yi

2012-05-02T23:59:59.000Z

406

The Relationship of the Nail Penetration Test to Safety of Li-Ion Cells  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

407

Improved layered mixed transition metal oxides for Li-ion batteries  

E-Print Network [OSTI]

for rechargeable lithium batteries," Science 311(5763), 977-^ for Advanced Lithium-Ion Batteries," J. Electrochem. Soc.02 for lithium-ion batteries," Chem. Lett. , [3] Yabuuchi,

Doeff, Marca M.

2010-01-01T23:59:59.000Z

408

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network [OSTI]

of cathode materials for lithium batteries guided by first-facing rechargeable lithium batteries. Nature, 2001. 414(M.S. Whittingham, Lithium batteries and cathode materials.

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

409

Improved layered mixed transition metal oxides for Li-ion batteries  

E-Print Network [OSTI]

for rechargeable lithium batteries," Science 311 (5763),for rechargeable lithium batteries," Science 311(5763), 977-M n , ^ for Advanced Lithium-Ion Batteries," J. Electrochem.

Doeff, Marca M.

2010-01-01T23:59:59.000Z

410

Facile synthesis of nanostructured vanadium oxide as cathode materials for efficient Li-ion batteries  

E-Print Network [OSTI]

approximately 100 nm in width and 1­2 mm in length have been fabricated via the hydrothermal process microspheres;10 hydrothermal synthesis of VO2 (B) nanobelts,11,12 nanorods,13 nanoflakes and nanoflowers.14 materials, long fabrication times and complicated processing methods, which in turn result in a high cost

Cao, Guozhong

411

Mesoporous vanadium pentoxide nanofibers with significantly enhanced Li-ion storage properties by electrospinning  

E-Print Network [OSTI]

.1039/c0ee00313a Mesoporous V2O5 nanofibers were fabricated by a method combining sol­gel processing and de-interca- lation. There are many methods for fabricating nanomaterials, such as hydrothermal the most simple and versatile process for generating nanofibers.10 A variety of simple oxide nanofibers can

Cao, Guozhong

412

Low-Cost Graphite and Olivine-Based Materials for Li-Ion Batteries  

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

Work on WSB should be supported Response to BATT Merit Review Comments HQ developed WSB processing technology for cathodes and anodes that are very promising compared to PVDF...

413

Significant Cost Improvement of Li-Ion Cells Through Non-NMP...  

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

Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Approach 5 Dry coated electrode Electrode design optimization Binder and electrolyte development Process and equipment optimization...

414

Significant Cost Improvement of Li-Ion Cells Through Non-NMP...  

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

Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Approach 5 Dry coated electrode Electrode design optimization Binder and electrolyte development Process and equipment optimization Water...

415

Vehicle Technologies Office Merit Review 2014: Fluorinated Electrolyte for 5-V Li-Ion Chemistry  

Broader source: Energy.gov [DOE]

Presentation given by Argonne National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about fluorinated...

416

Vehicle Technologies Office Merit Review 2014: Metal-Based High Capacity Li-Ion Anodes  

Broader source: Energy.gov [DOE]

Presentation given by Binghamton University-SUNY at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about metal-based high...

417

Cahn-Hilliard Reaction Model for Isotropic Li-ion Battery Particles  

E-Print Network [OSTI]

Using the recently developed Cahn-Hilliard reaction (CHR) theory, we present a simple mathematical model of the transition from solid-solution radial diffusion to two-phase shrinking-core dynamics during ion intercalation ...

Zeng, Yi

418

Prediction of Retained Capacity and EODV of Li-ion Batteries in LEO Spacecraft Batteries  

E-Print Network [OSTI]

In resent years ANN is widely reported for modeling in different areas of science including electro chemistry. This includes modeling of different technological batteries such as lead acid battery, Nickel cadmium batteries etc. Lithium ion batteries are advance battery technology which satisfy most of the space mission requirements. Low earth orbit (LEO)space craft batteries undergo large number of charge discharge cycles (about 25000 cycles)compared to other ground level or space applications. This study is indented to develop ANN model for about 25000 cycles, cycled under various temperature, Depth Of Discharge (DOD) settings with constant charge voltage limit to predict the retained capacity and End of Discharge Voltage (EODV). To extract firm conclusion and distinguish the capability of ANN method, the predicted values are compared with experimental result by statistical method and Bland Altman plot.

Ramakrishnan, S; Jeyakumar, A Ebenezer

2010-01-01T23:59:59.000Z

419

Model-Experimental Studies on Next-generation Li-ion Materials...  

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

More Documents & Publications Performance and Degradation Modeling of Batteries Improved Methods for Making Intermetallic Anodes Overview of Applied Battery Research...

420

Characterization of Li-ion Batteries using Neutron Diffraction and Infrared  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate Earth Day withCharacterization and ValorizationImaging

Note: This page contains sample records for the topic "li-ion steady state" 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

Characterization of Materials for Li-ion Batteries: Success Stories from  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate Earth Day withCharacterization and ValorizationImagingthe

422

Construction of a Li Ion Battery (LIB) Cathode Production Plant in Elyria,  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate Earth Codestheatfor Optimized91Power PlantWorkerOhio |

423

Construction of a Li Ion Battery (LIB) Cathode Production Plant in Elyria,  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTieCelebrate Earth Codestheatfor Optimized91Power PlantWorkerOhio |Ohio

424

Transport and Failure in Li-ion Batteries | Stanford Synchrotron Radiation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatusButler TinaContact-Information-Transmission Sign

425

High Capacity MoO3 Nanoparticle Li-Ion Battery Anode | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietip sheetK-4In 2013 many| Department of EnergyJohn

426

Nanoscale In Situ Characterization of Li-ion Battery Electrochemistry via  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn F. Geisz,AerialStaff

427

Self-assembled TiO2-Graphene Hybrid Nanostructures for Enhanced Li-ion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2) SrEvaluating the Seasonalsw 'PeeringStations

428

Low-Cost Graphite and Olivine-Based Materials for Li-Ion Batteries |  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't Happen toLeveragingLindseyLong-TermLosofLowEnergyDepartment

429

Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources  

E-Print Network [OSTI]

silicates compounds ?-spodumene and ?-eucryptite [7–9] at1 (?-eucryptite) 0.02 (?-spodumene) 1.5 (?-eucryptite) 1 (?-

Roy, Prabir

2013-01-01T23:59:59.000Z

430

Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources  

E-Print Network [OSTI]

of amount of lithium alumino-silicate mass deposition on Themg, and 2.8 mg of alumino- silicate material deposited. [19]extracted from alumino-silicate sources Prabir K. Roy, ?

Roy, Prabir

2013-01-01T23:59:59.000Z

431

Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources  

SciTech Connect (OSTI)

A space-charge-limited beam with current densities (J) exceeding 1 mA/cm{sup 2} have been measured from lithium alumino-silicate ion sources at a temperature of #24;~1275#14;{degrees} C. At higher extraction voltages, the source appears to become emission limited with J #21;{>=} 1.5 mA/cm{sup 2}, and J increases weakly with the applied voltage. A 6.35 mm diameter source with an alumino-silicate coating, {<=}#20;0.25 mm thick, has a measured lifetime of ~#24;40 hours at ~#24;1275#14;{degrees} C, when pulsed at 0.05 Hz and with pulse length of #24;~6 μs each. At this rate, the source lifetime was independent of the actual beam charge extracted due to the loss of neutral atoms at high temperature. The source lifetime increases with the amount of alumino-silicate coated on the emitting surface, and may also be further extended if the temperature is reduced between pulses.

Roy, Prabir K.; Greenway, Wayne G.; Kwan, Joe W

2012-03-05T23:59:59.000Z

432

2010 DOE, Li-Ion Battery Cell Manufacturing | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up from theDepartment( Sample of ShipmentSimulation,

433

Lithium Source For High Performance Li-ion Cells | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10IO1OP001 LetterLight-Duty11.2.1310 DOE Vehicle

434

Diagnostic Studies to Improve Abuse Tolerance and Life of Li-ion Batteries  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent CompanyaUSAMP AMDHeavy3Light-Weight,Department of|

435

Diagnostic Studies to Improve Abuse Tolerance and Life of Li-ion Batteries  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent CompanyaUSAMP AMDHeavy3Light-Weight,Department of||

436

Modeling - Scale-Bridging Simulations Active Materials in Li-ion Batteries,  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32 MasterAcquisitiTechnologyPotomacRidgeMobileCladdings: Aand

437

Hollow Core-Shell Structured Porous Si-C Nanocomposites for Li-Ion Battery  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinement plasmas in theinPlasticsreductionCuln(1-x)GaxSe2HoleyAnodes.

438

Statistical Design of Experiment for Li-ion Cell Formation Parameters using  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage » SearchEnergyDepartmentScopingOverviewFranklin M.Engine Dynamometer

439

Streamlining the Optimization of Li-Ion Battery Electrodes | Department of  

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

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

440

Study of Li-ion Cell Formation Parameters using "Gen3" Electrode Materials:  

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

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

Note: This page contains sample records for the topic "li-ion steady state" 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

Advanced Li-Ion Polymer Battery Cell Manufacturing Plant in USA |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartment of EnergyAdministrative2 DOE2011 DOE Hydrogen and1 DOE

442

Development of Cell/Pack Level Models for Automotive Li-Ion Batteries with  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent Companya new highModeling Capabilities

443

Development of High Capacity Anode for Li-ion Batteries | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent Companya newHomogeneous Charge

444

Development of High Energy Cathode for Li-ion Batteries | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent Companya newHomogeneous ChargeMaterials

445

Significant Cost Improvement of Li-Ion Cells Through Non-NMP Electrode  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage » SearchEnergyDepartment of EnergyLight-DutyCoating, Direct Separator

446

A New Vision for High-Capacity Hybrid Li-ion/Li-O2 Batteries  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |November 2011A First LookMicroscopy for Analysis ofA

447

A Yolk-Shell Design for Stabilized and Scalable Li-Ion Battery Alloy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |November 2011A FirstEMSL ShellACalmodulin inU T H

448

Electrolytes and Separators for High Voltage Li Ion Cells | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat PumpRecord ofESPC ENABLE: ECMConstruction andElectrolytes | DepartmentEnergy 2

449

Electrolytes and Separators for High Voltage Li Ion Cells | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat PumpRecord ofESPC ENABLE: ECMConstruction andElectrolytes | DepartmentEnergy

450

Electrolytes in Support of 5 V Li-ion Chemistries | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat PumpRecord ofESPC ENABLE: ECMConstruction andElectrolytes |in Support of 5 V

451

Electrode Materials for Rechargeable Li-ion Batteries: a New Synthetic  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia Nanoparticles as Selective Sorbents . | EMSLSolid OxideApproach

452

Hard Carbon Materials for High-Capacity Li-ion Battery Anodes | Department  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground SourceHBLEDFriends ofTreatsHantz Legerof

453

High Voltage Electrolytes for Li-ion Batteries | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii HIGH PERFORMANCEDOE Biomass Program2 DOE

454

High Voltage Electrolytes for Li-ion Batteries | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii HIGH PERFORMANCEDOE Biomass Program2 DOE1

455

High Voltage Electrolytes for Li-ion Batteries | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii HIGH PERFORMANCEDOE Biomass Program2 DOE109

456

Fail-Safe Design for Large Capacity Li-Ion Battery Systems - Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4:Epitaxial ThinFOR IMMEDIATE5FacilitiesFacilityAboutFail

457

Model-Experimental Studies on Next-generation Li-ion Materials | Department  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F S i DOE TribaltheMyMinutes fromBased RepositoryEnergyof Energy

458

Model-Experimental Studies on Next-generation Li-ion Materials | Department  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F S i DOE TribaltheMyMinutes fromBased RepositoryEnergyof

459

Multifunctional, Inorganic-Filled Separators for Large Format, Li-ion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F S i DOEToward a Peaceful NuclearBatteries | Department of

460

Multifunctional, Inorganic-Filled Separators for Large Format, Li-ion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F S i DOEToward a Peaceful NuclearBatteries | Department ofBatteries

Note: This page contains sample records for the topic "li-ion steady state" 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

Multifunctional, Inorganic-Filled Separators for Large Format, Li-ion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F S i DOEToward a Peaceful NuclearBatteries | Department

462

Conductive Rigid Skeleton Supported Silicon as High-Performance Li-Ion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New SubstationCleanCommunity2 ComputationalConcentrating SolarScience2.1 Admin

463

Probing the Degradation Mechanisms in Electrolyte Solutions for Li-ion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - SeptemberMicroneedles for4-16 FORPoints ofProbing Strain-Induced

464

Significant Cost Improvement of Li-Ion Cells Through Non-NMP...  

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

Coating, Direct Separator Coating, and Fast Formation Technologies 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer...

465

Modeling of Nonuniform Degradation in Large-Format Li-ion Batteries (Poster)  

SciTech Connect (OSTI)

Shows results of an empirical model capturing effects of both storage and cycling and developed the lithium ion nickel cobalt aluminum advanced battery chemistry.

Smith, K.; Kim, G. H.; Pesaran, A.

2009-06-01T23:59:59.000Z

466

Modeling of Nonuniform Degradation in Large-Format Li-ion Batteries (Presentation)  

SciTech Connect (OSTI)

Study of impacts of large-format cell design features on battery useful life to improve battery engineering models, including both realistic geometry and physics.

Smith, K.; Kim, G. H.; Pesaran, A.

2009-05-01T23:59:59.000Z

467

The Effects Of Internal Pressure Evolution On The Aging Of Commercial Li-Ion Cells  

E-Print Network [OSTI]

//Graphite LFP-26650P lithium-ion battery (LIB) was studied throughout elevated rate life cycle testing the LIB during life cycling testing and it was primarily a result of the increase in Ohmic resistance for these demanding applications. These storage systems are typically driven by performance, cost, and safety. Due

Liu, Fuqiang

468

Origin State Destination State  

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

7. Estimated truck transportation rates for coal, state to state, EIA data Origin State Destination State 2008 2009 2010 2008-2010 2009-2010 Alabama Alabama W W W W W Alabama...

469

The Pennsylvania State University The Graduate School  

E-Print Network [OSTI]

pressure coefficient, lift and drag are evaluated resulting from both steady-state and time- accurate integration scheme versus central differencing is performed, measuring the impact on the artificial dissipation scheme as well as that of the values of the artificial viscosity coefficients. The combination

470

Quadratic voltage profiles in lead acid cells during slow, steady processes  

E-Print Network [OSTI]

It is standard lore that the voltage profile varies linearly in space within the electrolyte of a lead acid cell under slow, steady discharge. However, this hypothesis has never been put to the test. A recent theory predicts a uniform, non...

Haaser, Robert Anthony

1999-01-01T23:59:59.000Z

471

Steady Propagation Speed for Ram Accelerators1 Joseph M. Powers2  

E-Print Network [OSTI]

Steady Propagation Speed for Ram Accelerators1 Joseph M. Powers2 , Antonio C´ardenas3 , and Matthew. Such a geometry better represents the physical characteristics of exper- imental ram accelerators, in which projectiles have been accelerated to over 3000 m s . The model employs finite rate chemistry with simple one

472

Steady improved confinement in FTU high field plasmas sustained by deep pellet injection  

E-Print Network [OSTI]

Steady improved confinement in FTU high field plasmas sustained by deep pellet injection D to the maximum nominal toroidal field (8 T) by deep multiple pellet injection. These plasmas also feature high to the input power due to particle concentration in the well confined hot core. Deep pellet injection (e

Vlad, Gregorio

473

Steady Improved Confinement in FTU High Field Plasmas Sustained by Deep Pellet Injection  

E-Print Network [OSTI]

Steady Improved Confinement in FTU High Field Plasmas Sustained by Deep Pellet Injection D at the maximum nominal toroidal field (8 T), and lower, by deep multiple pellet injection. These plasmas featured due to particle concentration in the well confined hot core. Deep pellet injection in Alcator C high

Vlad, Gregorio

474

Budapest, Hungary, 17-19 September 2007 Flexible Profile Approach to the Steady Conjugate  

E-Print Network [OSTI]

in heat transfer in which coupling between two heat transfer modes (convection and conduction) is observed undergoing forced convection, heat transfer boundary conditions are in reality never as ideal as those usedBudapest, Hungary, 17-19 September 2007 Flexible Profile Approach to the Steady Conjugate Heat

Paris-Sud XI, Université de

475

Bridging the Gap: Automated Steady Scaffoldings for 3D Printing Jrmie Dumas  

E-Print Network [OSTI]

Bridging the Gap: Automated Steady Scaffoldings for 3D Printing Jérémie Dumas Université de Figure 1: The upper leg of the Poppy robot (www.poppy-project.org) cannot be 3D printed on low cost FDM usage. Abstract Fused Filament Fabrication (FFF) is the process of 3D printing ob- jects from melted

Lévy, Bruno

476

Numerical Study of Steady Turbulent Flow through Bifurcated Nozzles in Continuous Casting  

E-Print Network [OSTI]

. The effects of nozzle design and casting process operating variables on the jet characteristics exitingNumerical Study of Steady Turbulent Flow through Bifurcated Nozzles in Continuous Casting FADY M. NAJJAR, BRIAN G. THOMAS, and DONALD E. HERSHEY Bifurcated nozzles are used in continuous casting

Thomas, Brian G.

477

Gravity Effects on Steady Two-Dimensional Partially Premixed MethaneAir Flames  

E-Print Network [OSTI]

cases due to buoyancy- induced entrainment, since advection of air into the outer reaction zone in an opposite direction to the gravity vector, causing air entrainment that enhances the fuel­air mixing andGravity Effects on Steady Two-Dimensional Partially Premixed Methane­Air Flames ZHUANG SHU, CHUN W

Aggarwal, Suresh K.

478

Real time monitoring of multiple wells flowing under pseudosteady state condition by using Kalman filtering  

E-Print Network [OSTI]

This work develops a method for the real time monitoring of well performance by using Kalman filtering. A system of two or more wells draining the same reservoir under pseudo steady state condition is monitored simultaneously to estimate both...

Jacob, Suresh

2002-01-01T23:59:59.000Z

479

An All-Sky Search for Steady VHE Gamma-Ray Sources  

E-Print Network [OSTI]

The Milagrito water Cherenkov detector in the Jemez Mountains near Los Alamos, New Mexico took data from February 1997 to April 1998. Milagrito served as a prototype for the larger Milagro detector, which has just begun operations. Milagrito was the first large-aperture gamma-ray detector with sensitivity to gamma rays below 1 TeV. We report here on a search for steady emission from point sources over most of the northern sky using data from Milagrito.

Atkins, R; Berley, D; Chen, M L; Coyne, D G; Delay, R S; Dingus, B L; Dorfan, D E; Ellsworth, R W; Evans, D; Falcone, A D; Fleysher, L; Fleysher, R; Gisler, G; Goodman, J A; Haines, T J; Hoffman, C M; Hugenberger, S; Kelley, L A; Leonor, I; Macri, J R; McConnell, M; McCullough, J F; McEnery, J E; Miller, R S; Mincer, A I; Morales, M F; Némethy, P; Ryan, J M; Schneider, M; Shen, B; Shoup, A L; Sinnis, G; Smith, A J; Sullivan, G W; Thompson, T N; Tümer, T O; Wang, K; Wascko, M O; Westerhoff, S; Williams, D A; Yang, T; Yodh, G B

1999-01-01T23:59:59.000Z

480

Universality and backreaction in a general-relativistic accretion of steady fluids  

E-Print Network [OSTI]

The spherically symmetric steady accretion of polytropic perfect fluids onto a black hole is the simplest flow model that can demonstrate the effects of backreaction. The analytic and numerical investigation reveals that backreaction keeps intact most of the characteristics of the sonic point. For any such system, with the only free parameter being the relative abundance of the fluid, the mass accretion rate achieves maximal value when the mass of the fluid is universally 1/3 of the total mass.

Janusz Karkowski; Bogusz Kinasiewicz; Patryk Mach; Edward Malec; Zdobyslaw Swierczynski

2006-01-06T23:59:59.000Z

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


481

An All-Sky Search for Steady VHE Gamma-Ray Sources  

E-Print Network [OSTI]

The Milagrito water Cherenkov detector in the Jemez Mountains near Los Alamos, New Mexico took data from February 1997 to April 1998. Milagrito served as a prototype for the larger Milagro detector, which has just begun operations. Milagrito was the first large-aperture gamma-ray detector with sensitivity to gamma rays below 1 TeV. We report here on a search for steady emission from point sources over most of the northern sky using data from Milagrito.

R. Atkins; W. Benbow; D. Berley; M. -L. Chen; D. G. Coyne; R. S. Delay; B. L. Dingus; D. E. Dorfan; R. W. Ellsworth; D. Evans; A. Falcone; L. Fleysher; R. Fleysher; G. Gisler; J. A. Goodman; T. J. Haines; C. M. Hoffman; S. Hugenberger; L. A. Kelley; I. Leonor; J. Macri; M. McConnell; J. F. McCullough; J. E. McEnery; R. S. Miller; A. I. Mincer; M. F. Morales; P. Nemethy; J. M. Ryan; M. Schneider; B. Shen; A. Shoup; G. Sinnis; A. J. Smith; G. W. Sullivan; T. N. Thompson; O. T. Tumer; K. Wang; M. O. Wascko; S. Westerhoff; D. A. Williams; T. Yang; G. B. Yodh

1999-06-23T23:59:59.000Z

482

Department of Chemistry Michigan Technological University http://chemistry.mtu.edu/  

E-Print Network [OSTI]

) and ab initio, solid state vibrational calculations; studying Ni and Li-ion battery electrodes. (Dr. B. C-composites. (Dr. P. Heiden) · Solid state structural characterization, structure-property relations, including

Honrath, Richard E.

483

Quasi-steady model for predicting temperature of aqueous foams circulating in geothermal wellbores  

SciTech Connect (OSTI)

A quasi-steady model has been developed for predicting the temperature profiles of aqueous foams circulating in geothermal wellbores. The model assumes steady one-dimensional incompressible flow in the wellbore; heat transfer by conduction from the geologic formation to the foam is one-dimensional radially and time-dependent. The vertical temperature distribution in the undisturbed geologic formation is assumed to be composed of two linear segments. For constant values of the convective heat-transfer coefficient, a closed-form analytical solution is obtained. It is demonstrated that the Prandtl number of aqueous foams is large (1000 to 5000); hence, a fully developed temperature profile may not exist for representative drilling applications. Existing convective heat-transfer-coefficient solutions are adapted to aqueous foams. The simplified quasi-steady model is successfully compared with a more-sophisticated finite-difference computer code. Sample temperature-profile calculations are presented for representative values of the primary parameters. For a 5000-ft wellbore with a bottom hole temperature of 375{sup 0}F, the maximum foam temperature can be as high as 300{sup 0}F.

Blackwell, B.F.; Ortega, A.

1983-01-01T23:59:59.000Z

484

Energetics and Dynamics of the Low-Lying Electronic States of Constrained Polyenes: Implications for Infinite Polyenes  

E-Print Network [OSTI]

Steady-state and ultrafast transient absorption spectra were obtained for a series of conformationally constrained, isomerically pure polyenes with 5–23 conjugated double bonds (N). These data and fluorescence spectra of ...

Christensen, Ronald L.

485

Generation of Werner states via collective decay of coherently driven atoms  

E-Print Network [OSTI]

We show deterministic generation of Werner states as a steady state of the collective decay dynamics of a pair of neutral atom coupled to a leaky cavity and strong coherent drive. We also show how the scheme can be extended to generate $2N$-particle analogue of the bipartite Werner states.

Girish S. Agarwal; Kishore T. Kapale

2005-10-13T23:59:59.000Z

486

Abstract--This paper introduces new concepts for evaluation of the power system steady state operations, namely the  

E-Print Network [OSTI]

in the highly competitive electricity market and complex, aging and stressed power system infrastructure Electric Power Company) just watched their system voltage decreasing while the load was increasing fast till voltage collapse occurred after they run off their reactive power supply[1]. In August 1996

487

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 21, NO. 1, FEBRUARY 2006 171 Continuation-Based Quasi-Steady-State Analysis  

E-Print Network [OSTI]

-term load characteristic does not intersect the system PV curve (see Fig. 2). In Scenario One (see Fig. 1 the bifurcation points. Pa- rameterization of the load exponents through continuation method makes it possible to simulate dynamic load recovery models in the system without numerical integration. The tap dynamics

488

J. Jacquinot, 20th IAEA Fusion Energy Conference, Vilamoura, Portugal, 1/11/2004 Steady-State operation of Tokamaks  

E-Print Network [OSTI]

99989796 t (s) nl(0) PLH nl reference Relevant for ITER: · Reliable screw extruder · Pneumatic acceleration

489

The steady-state mosaic of disturbance and succession across an old-growth Central Amazon forest landscape  

E-Print Network [OSTI]

African jungle. Nature 457(7232): 2. Laurance WF, et al. (tropical forests. Nature 457(7232):1003–1006. 7. Coomes DA,

2013-01-01T23:59:59.000Z

490

The steady-state mosaic of disturbance and succession across an old-growth Central Amazon forest landscape  

E-Print Network [OSTI]

African jungle. Nature 457(7232): 2. Laurance WF, et al. (tropical forests. Nature 457(7232):1003–1006. 7. Coomes DA,

Chambers, J.Q.

2014-01-01T23:59:59.000Z

491

Characterization of oil transport in the power cylinder of internal combustion engines during steady state and transient operation  

E-Print Network [OSTI]

Engine friction, wear, and oil consumption are some of the primary interests for the automotive industry. However, there is currently a lack of understanding of the fundamentals involving oil transport inside the power ...

Przesmitzki, Steve (Steve Victor)

2008-01-01T23:59:59.000Z

492

Scientific Issues and Gaps for High-Performance Steady-State Burning-Plasmas Fusion Innovation Research and Energy  

E-Print Network [OSTI]

Innovation Research and Energy Princeton, NJ 08540 Introduction Fusion energy is a potential energy source for an electricity producing power plant. Recently, the FESAC Priorities, Gaps and Opportunities Panel identified, and extracting plasma exhaust power) Theme C ­ Harnessing the Power of Fusion (extracting neutron power, breeding

493

The steady-state mosaic of disturbance and succession across an old-growth Central Amazon forest landscape  

E-Print Network [OSTI]

and our Landsat-based wind mortality estimate ( 0.18% y ?to quantify wind-driven tree mortality disturbance for ?vewind storms (33, 34), with the potential for additional mortality

2013-01-01T23:59:59.000Z

494

Steady-State Impurity Control, Heat Removal and Tritium Recovery by Moving-Belt Plasma-Facing Components  

E-Print Network [OSTI]

erosion may increase due to the reduced redeposition efficiency of radiation-cooled plasmas and also due in DIII-D was achieved by combined helium glow discharge and boronization [4]. Recently, lithium wall To review innovative PFC concepts, in 1974 the liquid lithium divertor was proposed in the UWMAK-I reactor

Tillack, Mark

495

Simulation of the Steady-State Transport of Radon from Oil into Houses with Basements under Constant Negative Pressure  

E-Print Network [OSTI]

PRESSU . . . . . . . . . . . . . . . . . . . . . . . .on the performance of PRESSU and MASTRA . . . . . . . . .the size of the soil block on the performance of PRESSU and

de Oliveira Loureiro, Celso

1987-01-01T23:59:59.000Z

496

Determination of vaporization efficiencies and overall mass transfer coefficients from a packed absorber at steady state operation  

E-Print Network [OSTI]

. A total material balance and the component balances for prcpane. , i-butane, and n-butane are used to obtain a system of four equations. 37 These equations are solved simultaneously for the lean oil, the recompressed gas, the rich oil..., and the greater volume of gas rising up through the packing blows the thermowells dry in the lower section. 39 CHAPTER VI DISCUSSION OF RESULTS The two models described in Chapter IV were both investigated using the data given in Table 2. The K-value data...

McDaniel, Ronald

1968-01-01T23:59:59.000Z

497

Spatial Averaging of van Genuchten Hydraulic Parameters for Steady-State Flow in Heterogeneous Soils: A Numerical Study  

E-Print Network [OSTI]

Soils: A Numerical Study Jianting Zhu and Binayak P. Mohanty* ABSTRACT factors. Kim and Stricker (1996 al., 1988; Kim and Stricker, 1996; Kim et al., 1997; Sharma been recognized for years. Because

Mohanty, Binayak P.

498

A fission-fusion hybrid reactor in steady-state L-mode tokamak configuration with natural uranium  

E-Print Network [OSTI]

The most prevalent criticism of fission-fusion hybrids is simply that they are too exotic - that they would exacerbate the challenges of both fission and fusion. This is not really true. Intriguingly, hybrids could actually ...

Reed, Mark Wilbert

2011-01-01T23:59:59.000Z

499

Experimental investigation of effects of surface roughness, wettability and boiling-time on steady state and transient CHF for nanofluids  

E-Print Network [OSTI]

Critical Heat Flux (CHF) is one of the primary design constraints in a nuclear reactor. Increasing the CHF of water can enhance the safety margins of the current fleet of Light Water Reactors (LWRs) and/or increase their ...

Sharma, Vivek Inder

2012-01-01T23:59:59.000Z

500

Steady state heat transfer experimental studies of LHC superconducting cables operating in cryogenic environment of superfluid helium  

E-Print Network [OSTI]

The heat management is a basic and fundamental aspect of the superconducting magnets used in the CERN Large Hadron Collider. Indeed, the coil temperature must be kept below the critical value, despite the heat which can be generated or deposited in the magnet during the normal operations. Therefore, this thesis work aims at determining the heating power which can be extracted from the superconducting cables of the LHC, specially through their electrical insulation which represents the main thermal barrier. An experimental measurement campaign in superfluid helium bath was performed on several samples reproducting the main LHC magnets. The heating power was generated in the sample by Joule heating and the temperature increase was measured by means of Cernox bare chip and thermocouples. An innovative instrumentation technique which also includes the in-situ calibration of the thermocouples was developed. A thorough uncertainty analysis on the overall measurement chain concluded the experimental setup. The prese...

Santandrea, Dario; Tuccillo, Raffaele; Granieri, Pier Paolo.