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1

Integrated Assessment Modeling of Carbon Sequestration and Land Use Emissions Using Detailed Model Results and Observations  

SciTech Connect (OSTI)

This report outlines the progress on the development and application of Integrated Assessment Modeling of Carbon Sequestrations and Land Use Emissions supported by the DOE Office of Biological and Environmental Research (OBER), U.S. Department of Energy, Grant No. DOE-DE-FG02-01ER63069. The overall objective of this collaborative project between the University of Illinois at Urbana-Champaign (UIUC), Oak Ridge National Laboratory (ORNL), Lawrence Livermore National Laboratory (LLNL), and Pacific Northwest National Laboratory (PNNL) was to unite the latest advances in carbon cycle research with scientifically based models and policy-related integrated assessment tools that incorporate computationally efficient representations of the latest knowledge concerning science and emission trajectories, and their policy implications. As part of this research we accomplished the following tasks that we originally proposed: (1) In coordination with LLNL and ORNL, we enhanced the Integrated Science Assessment Model's (ISAM) parametric representation of the ocean and terrestrial carbon cycles that better represent spatial and seasonal variations, which are important to study the mechanisms that influence carbon sequestration in the ocean and terrestrial ecosystems; (2) Using the MiniCAM modeling capability, we revised the SRES (IPCC Special Report on Emission Scenarios; IPCC, 2000) land use emission scenarios; and (3) On the application front, the enhanced version of ISAM modeling capability is applied to understand how short- and long-term natural carbon fluxes, carbon sequestration, and human emissions contribute to the net global emissions (concentrations) trajectories required to reach various concentration (emission) targets. Under this grant, 21 research publications were produced. In addition, this grant supported a number of graduate and undergraduate students whose fundamental research was to learn a disciplinary field in climate change (e.g., ecological dynamics and ocean circulations) and then complete research on how this field could be linked to the other factors we need to consider in its dynamics (e.g., land use, ocean and terrestrial carbon sequestration and climate change).

Dr. Atul Jain

2005-04-17T23:59:59.000Z

2

Process of Integrating Screening and Detailed Risk-based Modeling Analyses to Ensure Consistent and Scientifically Defensible Results  

SciTech Connect (OSTI)

To support cleanup and closure of these tanks, modeling is performed to understand and predict potential impacts to human health and the environment. Pacific Northwest National Laboratory developed a screening tool for the United States Department of Energy, Office of River Protection that estimates the long-term human health risk, from a strategic planning perspective, posed by potential tank releases to the environment. This tool is being conditioned to more detailed model analyses to ensure consistency between studies and to provide scientific defensibility. Once the conditioning is complete, the system will be used to screen alternative cleanup and closure strategies. The integration of screening and detailed models provides consistent analyses, efficiencies in resources, and positive feedback between the various modeling groups. This approach of conditioning a screening methodology to more detailed analyses provides decision-makers with timely and defensible information and increases confidence in the results on the part of clients, regulators, and stakeholders.

Buck, John W.; McDonald, John P.; Taira, Randal Y.

2002-11-01T23:59:59.000Z

3

Results of Detailed Hydrologic Characterization Tests - Fiscal Year 2003  

SciTech Connect (OSTI)

This report presents results obtained from detailed hydrologic characterization of the unconfined aquifer system conducted at the Hanford Site.

Spane, Frank A.; Newcomer, Darrell R.

2004-09-13T23:59:59.000Z

4

Development of a Toolkit for Calculating Linear, Change–Point Linear and Multiple–Linear Inverse Building Energy Analysis Models, ASHRAE Research Project 1050-RP, Detailed Test Results  

E-Print Network [OSTI]

data file (.DAT). Each SAS run contains a procedure file (.SAS) and an output file (.LST) and also shares the same data file as IMT. For each PRISM run, there are three files included: a weather file (.TPS), a data file or meter file (.MTR..., there are three files included: a weather file (.TPS), a data file or meter file (.MTR), and an output file (.DOC). The ?Status? column summarized the results of IMT as compared to other programs used. In Table 1.2, the detailed results from the IMT bounds...

Sreshthaputra, A.; Haberl, J. S.; Claridge, D. E.

2001-01-01T23:59:59.000Z

5

Detailed Physical Trough Model for NREL's Solar Advisor Model: Preprint  

SciTech Connect (OSTI)

Solar Advisor Model (SAM) is a free software package made available by the National Renewable Energy Laboratory (NREL), Sandia National Laboratory, and the US Department of Energy. SAM contains hourly system performance and economic models for concentrating solar power (CSP) systems, photovoltaic, solar hot-water, and generic fuel-use technologies. Versions of SAM prior to 2010 included only the parabolic trough model based on Excelergy. This model uses top-level empirical performance curves to characterize plant behavior, and thus is limited in predictive capability for new technologies or component configurations. To address this and other functionality challenges, a new trough model; derived from physical first principles was commissioned to supplement the Excelergy-based empirical model. This new 'physical model' approaches the task of characterizing the performance of the whole parabolic trough plant by replacing empirical curve-fit relationships with more detailed calculations where practical. The resulting model matches the annual performance of the SAM empirical model (which has been previously verified with plant data) while maintaining run-times compatible with parametric analysis, adding additional flexibility in modeled system configurations, and providing more detailed performance calculations in the solar field, power block, piping, and storage subsystems.

Wagner, M. J.; Blair, N.; Dobos, A.

2010-10-01T23:59:59.000Z

6

Detailed Kinetic Modeling of Gasoline Surrogate Mixtures  

SciTech Connect (OSTI)

Real fuels are complex mixtures of thousands of hydrocarbon compounds including linear and branched paraffins, naphthenes, olefins and aromatics. It is generally agreed that their behavior can be effectively reproduced by simpler fuel surrogates containing a limited number of components. In this work, a recently revised version of the kinetic model by the authors is used to analyze the combustion behavior of several components relevant to gasoline surrogate formulation. Particular attention is devoted to linear and branched saturated hydrocarbons (PRF mixtures), olefins (1-hexene) and aromatics (toluene). Model predictions for pure components, binary mixtures and multi-component gasoline surrogates are compared with recent experimental information collected in rapid compression machine, shock tube and jet stirred reactors covering a wide range of conditions pertinent to internal combustion engines. Simulation results are discussed focusing attention on the mixing effects of the fuel components.

Mehl, M; Curran, H J; Pitz, W J; Westbrook, C K

2009-03-09T23:59:59.000Z

7

Detailed Performance Model for Photovoltaic Systems: Preprint  

SciTech Connect (OSTI)

This paper presents a modified current-voltage relationship for the single diode model. The single-diode model has been derived from the well-known equivalent circuit for a single photovoltaic cell. The modification presented in this paper accounts for both parallel and series connections in an array.

Tian, H.; Mancilla-David, F.; Ellis, K.; Muljadi, E.; Jenkins, P.

2012-07-01T23:59:59.000Z

8

Appendix 3-3-The complete model formulation for detailed multiple release software product simulation model  

E-Print Network [OSTI]

simulation model In this appendix the model formulations for the detailed simulation model (discussed

Rahmandad, Hazhir

9

A Stochastic Reactor Based Virtual Engine Model Employing Detailed...  

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

A Stochastic Reactor Based Virtual Engine Model Employing Detailed Chemistry for Kinetic Studies of In-Cylinder Combustion and Exhaust Aftertreatment A Stochastic Reactor Based...

10

Save Energy Now Assessments Results 2008 Detailed Report  

SciTech Connect (OSTI)

In October 2005, U.S. Department of Energy Secretary Bodman launched his Easy Ways to Save Energy campaign with a promise to provide energy assessments to 200 of the largest U.S. manufacturing plants. DOE's Industrial Technologies Program (ITP) responded to the Secretary's campaign with its Save Energy Now initiative, featuring a new and highly cost-effective form of energy savings assessment. The approach for these assessments drew heavily on the existing resources of ITP's technology delivery component. Over the years, ITP Technology Delivery has worked with industry partners to assemble a suite of respected software tools, proven assessment protocols, training curricula, certified energy experts, and strong partnerships for deployment. The Save Energy Now assessments conducted in calendar year 2006 focused on natural gas savings and targeted many of the nation's largest manufacturing plants - those that consume at least 1 TBtu of energy annually. The 2006 Save Energy Now assessments focused primarily on assessments of steam and process heating systems, which account for an estimated 74% of all natural gas use by U.S. manufacturing plants. Because of the success of the Save Energy Now assessments conducted in 2006 and 2007, the program was expanded and enhanced in two major ways in 2008: (1) a new goal was set to perform at least 260 assessments; and (2) the assessment focus was expanded to include pumping, compressed air, and fan systems in addition to steam and process heating. DOE ITP also has developed software tools to assess energy efficiency improvement opportunities in pumping, compressed air, and fan systems. The Save Energy Now assessments integrate a strong training component designed to teach industrial plant personnel how to use DOE's opportunity assessment software tools. This approach has the advantages of promoting strong buy-in of plant personnel for the assessment and its outcomes and preparing them better to independently replicate the assessment process at the company's other facilities. Another important element of the Save Energy Now assessment process is the follow-up process used to identify how many of the recommended savings opportunities from individual assessments have been implemented in the industrial plants. Plant personnel involved with the Save Energy Now assessments are contacted 6 months, 12 months, and 24 months after individual assessments are completed to determine implementation results. A total of 260 Save Energy Now assessments were successfully completed in calendar year 2008. This means that a total of 718 assessments were completed in 2006, 2007, and 2008. As of July 2009, we have received a total of 239 summary reports from the ESAs that were conducted in year 2008. Hence, at the time that this report was prepared, 680 final assessment reports were completed (200 from year 2006, 241 from year 2007, and 239 from year 2008). The total identified potential cost savings from these 680 assessments is $1.1 billion per year, including natural gas savings of about 98 TBtu per year. These results, if fully implemented, could reduce CO{sub 2} emissions by about 8.9 million metric tons annually. When this report was prepared, data on implementation of recommended energy and cost savings measures from 488 Save Energy Now assessments were available. For these 488 plants, measures saving a total of $147 million per year have been implemented, measures that will save $169 million per year are in the process of being implemented, and plants are planning implementation of measures that will save another $239 million per year. The implemented recommendations are already achieving total CO{sub 2} reductions of about 1.8 million metric tons per year. This report provides a summary of the key results for the Save Energy Now assessments completed in 2008; details of the 6-month, 12-month, and 24-month implementation results obtained to date; and an evaluation of these implementation results. This report also summarizes key accomplishments, findings, and lessons learned from all the Save Energy No

Wright, Anthony L [ORNL; Martin, Michaela A [ORNL; Nimbalkar, Sachin U [ORNL; Quinn, James [U.S. Department of Energy; Glatt, Ms. Sandy [DOE Industrial Technologies Program; Orthwein, Mr. Bill [U.S. Department of Energy

2010-09-01T23:59:59.000Z

11

A detail study of defect models for cosmic structure formation  

E-Print Network [OSTI]

We calculate predictions from wide class of `active' models of cosmic structure formation which allows us to scan the space of possible defect models. We calculate the linear cold dark matter power spectrum and Cosmic Microwave Background (CMB) anisotropies over all observable scales using a full linear Einstein-Boltzmann code. Our main result, which has already been reported, points to a serious problem reconciling the observed amplitude of the large-scale galaxy distribution with the COBE normalization. Here, we describe our methods and results in detail. The problem is present for a wide range of defect parameters, which can be used to represent potential differences among defect models, as well as possible systematic numerical errors. We explicitly examine the impact of varying the defect model parameters and we show how the results substantiate these conclusions. The standard scaling defect models are in serious conflict with the current data, and we show how attempts to resolve the problem by considering non-scaling defects or modified stress-energy components would require radical departures from what has become the standard picture.

A. Albrecht; R. A. Battye; J. Robinson

1997-11-27T23:59:59.000Z

12

Hawaii demand-side management resource assessment. Final report, Reference Volume 3 -- Residential and commercial sector DSM analyses: Detailed results from the DBEDT DSM assessment model; Part 1, Technical potential  

SciTech Connect (OSTI)

The Hawaii Demand-Side Management Resource Assessment was the fourth of seven projects in the Hawaii Energy Strategy (HES) program. HES was designed by the Department of Business, Economic Development, and Tourism (DBEDT) to produce an integrated energy strategy for the State of Hawaii. The purpose of Project 4 was to develop a comprehensive assessment of Hawaii`s demand-side management (DSM) resources. To meet this objective, the project was divided into two phases. The first phase included development of a DSM technology database and the identification of Hawaii commercial building characteristics through on-site audits. These Phase 1 products were then used in Phase 2 to identify expected energy impacts from DSM measures in typical residential and commercial buildings in Hawaii. The building energy simulation model DOE-2.1E was utilized to identify the DSM energy impacts. More detailed information on the typical buildings and the DOE-2.1E modeling effort is available in Reference Volume 1, ``Building Prototype Analysis``. In addition to the DOE-2.1E analysis, estimates of residential and commercial sector gas and electric DSM potential for the four counties of Honolulu, Hawaii, Maui, and Kauai through 2014 were forecasted by the new DBEDT DSM Assessment Model. Results from DBEDTs energy forecasting model, ENERGY 2020, were linked with results from DOE-2.1E building energy simulation runs and estimates of DSM measure impacts, costs, lifetime, and anticipated market penetration rates in the DBEDT DSM Model. Through its algorithms, estimates of DSM potential for each forecast year were developed. Using the load shape information from the DOE-2.1E simulation runs, estimates of electric peak demand impacts were developed. Numerous tables and figures illustrating the technical potential for demand-side management are included.

NONE

1995-04-01T23:59:59.000Z

13

Towards a detailed soot model for internal combustion engines  

SciTech Connect (OSTI)

In this work, we present a detailed model for the formation of soot in internal combustion engines describing not only bulk quantities such as soot mass, number density, volume fraction, and surface area but also the morphology and chemical composition of soot aggregates. The new model is based on the Stochastic Reactor Model (SRM) engine code, which uses detailed chemistry and takes into account convective heat transfer and turbulent mixing, and the soot formation is accounted for by SWEEP, a population balance solver based on a Monte Carlo method. In order to couple the gas-phase to the particulate phase, a detailed chemical kinetic mechanism describing the combustion of Primary Reference Fuels (PRFs) is extended to include small Polycyclic Aromatic Hydrocarbons (PAHs) such as pyrene, which function as soot precursor species for particle inception in the soot model. Apart from providing averaged quantities as functions of crank angle like soot mass, volume fraction, aggregate diameter, and the number of primary particles per aggregate for example, the integrated model also gives detailed information such as aggregate and primary particle size distribution functions. In addition, specifics about aggregate structure and composition, including C/H ratio and PAH ring count distributions, and images similar to those produced with Transmission Electron Microscopes (TEMs), can be obtained. The new model is applied to simulate an n-heptane fuelled Homogeneous Charge Compression Ignition (HCCI) engine which is operated at an equivalence ratio of 1.93. In-cylinder pressure and heat release predictions show satisfactory agreement with measurements. Furthermore, simulated aggregate size distributions as well as their time evolution are found to qualitatively agree with those obtained experimentally through snatch sampling. It is also observed both in the experiment as well as in the simulation that aggregates in the trapped residual gases play a vital role in the soot formation process. (author)

Mosbach, Sebastian; Celnik, Matthew S.; Raj, Abhijeet; Kraft, Markus [Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA (United Kingdom); Zhang, Hongzhi R. [Department of Chemical Engineering, University of Utah, 1495 East 100 South, Kennecott Research Building, Salt Lake City, UT 84112 (United States); Kubo, Shuichi [Frontier Research Center, Toyota Central R and D Labs., Inc., Nagakute, Aichi 480-1192 (Japan); Kim, Kyoung-Oh [Higashifuji Technical Center, Toyota Motor Corporation, Mishuku 1200, Susono, Shizuoka 480-1193 (Japan)

2009-06-15T23:59:59.000Z

14

HCCI in a CFR engine: experiments and detailed kinetic modeling  

SciTech Connect (OSTI)

Single cylinder engine experiments and chemical kinetic modeling have been performed to study the effect of variations in fuel, equivalence ratio, and intake charge temperature on the start of combustion and the heat release rate. Neat propane and a fuel blend of 15% dimethyl-ether in methane have been studied. The results demonstrate the role of these parameters on the start of combustion, efficiency, imep, and emissions. Single zone kinetic modeling results show the trends consistent with the experimental results.

Flowers, D; Aceves, S; Smith, R; Torres, J; Girard, J; Dibble, R

1999-11-05T23:59:59.000Z

15

Development of Detailed Kinetic Models for Fischer-Tropsch Fuels  

SciTech Connect (OSTI)

Fischer-Tropsch (FT) fuels can be synthesized from a syngas stream generated by the gasification of biomass. As such they have the potential to be a renewable hydrocarbon fuel with many desirable properties. However, both the chemical and physical properties are somewhat different from the petroleum-based hydrocarbons that they might replace, and it is important to account for such differences when considering using them as replacements for conventional fuels in devices such as diesel engines and gas turbines. FT fuels generally contain iso-alkanes with one or two substituted methyl groups to meet the pour-point specifications. Although models have been developed for smaller branched alkanes such as isooctane, additional efforts are required to properly capture the kinetics of the larger branched alkanes. Recently, Westbrook et al. developed a chemical kinetic model that can be used to represent the entire series of n-alkanes from C{sub 1} to C{sub 16} (Figure 1). In the current work, the model is extended to treat 2,2,4,4,6,8,8-heptamethylnonane (HMN), a large iso-alkane. The same reaction rate rules used in the iso-octane mechanism were incorporated in the HMN mechanism. Both high and low temperature chemistry was included so that the chemical kinetic model would be applicable to advanced internal combustion engines using low temperature combustion strategies. The chemical kinetic model consists of 1114 species and 4468 reactions. Concurrently with this effort, work is underway to improve the details of specific reaction classes in the mechanism, guided by high-level electronic structure calculations. Attention is focused upon development of accurate rate rules for abstraction of the tertiary hydrogens present in branched alkanes and properly accounting for the pressure dependence of the ?-scission, isomerization, and R + O{sub 2} reactions.

Westbrook, C K; Pitz, W J; Carstensen, H; Dean, A M

2008-10-28T23:59:59.000Z

16

Detailed model for practical pulverized coal furnaces and gasifiers  

SciTech Connect (OSTI)

The need to improve efficiency and reduce pollutant emissions commercial furnaces has prompted energy companies to search for optimized operating conditions and improved designs in their fossil-fuel burning facilities. Historically, companies have relied on the use of empirical correlations and pilot-plant data to make decisions about operating conditions and design changes. The high cost of collecting data makes obtaining large amounts of data infeasible. The main objective of the data book is to provide a single source of detailed three-dimensional combustion and combustion-related data suitable for comprehensive combustion model evaluation. Five tasks were identified as requirements to achieve the main objective. First, identify the types of data needed to evaluate comprehensive combustion models, and establish criteria for selecting the data. Second, identify and document available three-dimensional combustion data related to pulverized coal combustion. Third, collect and evaluate three-dimensional data cases, and select suitable cases based on selection criteria. Fourth, organize the data sets into an easy-to-use format. Fifth, evaluate and interpret the nature and quality of the data base. 39 refs., 15 figs., 14 tabs.

Philips, S.D.; Smoot, L.D.

1989-08-01T23:59:59.000Z

17

Optimizing a physical security configuration using a highly detailed simulation model  

E-Print Network [OSTI]

Optimizing a physical security configuration using a highly detailed simulation model Marechal, T. Email: tommarechal@hotmail.com Abstract This chapter focuses on using a highly detailed simulation model. In this chapter describes the use of a highly detailed simulation model to find a superior security configuration

Smith, Alice E.

18

Detailed numerical modeling of chemical and thermal nonequilibrium in hypersonic flows  

SciTech Connect (OSTI)

Interest in hypersonic flows has created a large demand for physicochemical models for air flow computations around reentry bodies. Detailed physicochemical models for air in chemical and thermal nonequilibrium are needed for a realistic prediction of hypersonic flowfields. In this paper we develop a model, based on elementary physicochemical processes, for a detailed description of chemical nonequilibrium together with the excitation of internal DOFs. This model is implemented in a 2D Navier-Stokes code in order to show the strong influence of thermal nonequilibrium on the flowfields. The algorithm presented here is based on a fully conservative discretization of the inviscid fluxes in the conservation equations and uses the chain rule conservation law form for the viscous fluxes. The large system of ordinary differential and algebraic equations resulting from the spatial discretization is solved by a time-accurate semiimplicit extrapolation method. 34 refs.

Riedel, U.; Maas, U.; Warnatz, J. (Stuttgart Univ. (Germany))

1993-03-01T23:59:59.000Z

19

Development and validation of detailed controls models of the Nelson River Bipole 1 HVDC system  

SciTech Connect (OSTI)

With the Nelson River Bipole 1 mercury arc valve group replacement project and planning for the expansion of the Nelson River HVDC system with a third bipole underway, it was decided to pursue a program to develop and validate detailed models of the existing HVDC transmission facilities and their associated ac systems for use in system studies. The first phase of the program concentrated on the development of detailed controls models associated with the Bipole 1 transmission facility. Based on previous experience at Manitoba Hydro with the Electromagnetic Transient DC simulation program (EMTDC), it was decided that model development and validation would use this program. This paper presents the reasons behind the development of detailed models, the methods used in developing models related to Bipole 1, results of validation tests, difficulties encountered during the process, and the overall benefits resulting from the project. An example of applying the models to investigate a low frequency oscillation which has occurred on the dc system in the past is also presented.

Kuffel, P.; Kent, K.L.; Mazur, G.B.; Weekes, M.A. (Manitoba Hydro, Winnipeg (Canada))

1993-01-01T23:59:59.000Z

20

Modeling HCCI using CFD and Detailed Chemistry with Experimental Validation and a Focus on CO Emissions  

SciTech Connect (OSTI)

Multi-zone CFD simulations with detailed kinetics were used to model engine experiments performed on a diesel engine that was converted for single cylinder, HCCI operation, here using iso-octane as the fuel. The modeling goals were to validate the method (multi-zone combustion modeling) and the reaction mechanism (LLNL 857 species iso-octane), both of which performed very well. The purpose of this paper is to document the validation findings and to set the ground work for further analysis of the results by first looking at CO emissions characteristics with varying equivalence ratio.

Hessel, R; Foster, D; Aceves, S; Flowers, D; Pitz, B; Dec, J; Sjoberg, M; Babajimopoulos, A

2007-04-23T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" 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

Detailed Modeling and Response of Demand Response Enabled Appliances  

SciTech Connect (OSTI)

Proper modeling of end use loads is very important in order to predict their behavior, and how they interact with the power system, including voltage and temperature dependencies, power system and load control functions, and the complex interactions that occur between devices in such an interconnected system. This paper develops multi-state time variant residential appliance models with demand response enabled capabilities in the GridLAB-DTM simulation environment. These models represent not only the baseline instantaneous power demand and energy consumption, but the control systems developed by GE Appliances to enable response to demand response signals and the change in behavior of the appliance in response to the signal. These DR enabled appliances are simulated to estimate their capability to reduce peak demand and energy consumption.

Vyakaranam, Bharat; Fuller, Jason C.

2014-04-14T23:59:59.000Z

22

Study on detailed geological modelling for fluvial sandstone reservoir in Daqing oil field  

SciTech Connect (OSTI)

Guided by the sedimentation theory and knowledge of modern and ancient fluvial deposition and utilizing the abundant information of sedimentary series, microfacies type and petrophysical parameters from well logging curves of close spaced thousands of wells located in a large area. A new method for establishing detailed sedimentation and permeability distribution models for fluvial reservoirs have been developed successfully. This study aimed at the geometry and internal architecture of sandbodies, in accordance to their hierarchical levels of heterogeneity and building up sedimentation and permeability distribution models of fluvial reservoirs, describing the reservoir heterogeneity on the light of the river sedimentary rules. The results and methods obtained in outcrop and modem sedimentation studies have successfully supported the study. Taking advantage of this method, the major producing layers (PI{sub 1-2}), which have been considered as heterogeneous and thick fluvial reservoirs extending widely in lateral are researched in detail. These layers are subdivided into single sedimentary units vertically and the microfacies are identified horizontally. Furthermore, a complex system is recognized according to their hierarchical levels from large to small, meander belt, single channel sandbody, meander scroll, point bar, and lateral accretion bodies of point bar. The achieved results improved the description of areal distribution of point bar sandbodies, provide an accurate and detailed framework model for establishing high resolution predicting model. By using geostatistic technique, it also plays an important role in searching for enriched zone of residual oil distribution.

Zhao Hanqing; Fu Zhiguo; Lu Xiaoguang [Institute of Petroleum Exploration and Development, Daqing (China)

1997-08-01T23:59:59.000Z

23

Evaluation of Location-Specific Predictions by a Detailed Simulation Model of Aedes aegypti Populations  

E-Print Network [OSTI]

Evaluation of Location-Specific Predictions by a Detailed Simulation Model of Aedes aegypti Buster is a stochastic, spatially explicit simulation model of Aedes aegypti populations, designed of Location-Specific Predictions by a Detailed Simulation Model of Aedes aegypti Populations. PLoS ONE 6(7): e

Lloyd, Alun

24

EconoGrid: A detailed Simulation Model of a Standards-based Grid Compute Economy  

E-Print Network [OSTI]

EconoGrid: A detailed Simulation Model of a Standards-based Grid Compute Economy EconoGrid is a detailed simulation model, implemented in SLX1 , of a grid compute economy that implements selected of users. In a grid compute economy, computing resources are sold to users in a market where price

25

Results of detailed characterization on CH-TRU mixed waste at Argonne National Laboratory-West  

SciTech Connect (OSTI)

Argonne National Laboratory-West and Lockheed Idaho Technologies Company have jointly participated in the Department of Energy`s (DOE) Waste Isolation Pilot Plant Experimental Test Program since 1990. A new facility at Argonne was developed to improve the effectiveness and efficiency of contact-handled transuranic mixed waste characterization and to decrease the potential for facility contamination and personnel exposures. This new facility, the Waste Characterization Area, was approved for radioactive operations in March 1994. Between April and September 1994, forty-two waste drums containing mixed debris waste were characterized to support a study being performed to evaluate volatile organic compound concentrations in the void volume headspaces of waste drums. This paper presents the results of characterization performed at Argonne, emphasizing parameters important from a facility standpoint. Specifically, information is presented on drum surface dose rate, fissile content, number and type of gas samples, volatile organic compound concentration, and facility contamination levels. Actual values are compared to enveloping conditions assumed in the safety assessment for the characterization facility. Argonne-West is one of the first DOE sites to perform detailed waste characterization under the DOE`s Transuranic Waste Characterization Program. The information presented herein could aid other storage and generator sites in developing characterization procedures and facilities.

Dwight, C.C.; Jensen, B.A.; Duncan, D.S.

1995-03-01T23:59:59.000Z

26

Detailed modeling of spectroscopic data: Modeling support for ORNL PMI WORK: TEXTORALT-II, TORE SUPRA, ATF  

SciTech Connect (OSTI)

This paper contains vugraphs on particle source effects on confinement time scaling. Detailed modeling of H/sub ..cap alpha../ intensity spatial distribution is discussed. (LSP)

Hogan, J.; Klepper, C.; Hillis, D.; Uckan, T.

1988-01-01T23:59:59.000Z

27

Modelling cycle to cycle variations in an SI engine with detailed chemical kinetics  

SciTech Connect (OSTI)

This paper presents experimental results and a new computational model that investigate cycle to cycle variations (CCV) in a spark ignition (SI) engine. An established stochastic reactor model (SRM) previously used to examine homogeneous charge compression ignition (HCCI) combustion has been extended by spark initiation, flame propagation and flame termination sub-models in order to simulate combustion in SI engines. The model contains a detailed chemical mechanism but relatively short computation times are achieved. The flame front is assumed to be spherical and centred at the spark location, and a pent roof and piston bowl geometry are accounted for. The model is validated by simulating the pressure profile and emissions from an iso-octane fuelled single cylinder research engine that showed low CCV. The effects of key parameters are investigated. Experimental results that show cycle to cycle fluctuations in a four-cylinder naturally aspirated gasoline fuelled SI engine are presented. The model is then coupled with GT-Power, a one-dimensional engine simulation tool, which is used to simulate the breathing events during a multi-cycle simulation. This allows an investigation of the cyclic fluctuations in peak pressure. The source and magnitude of nitric oxide (NO) emissions produced by different cycles are then investigated. It was found that faster burning cycles result in increased NO emissions compared with cycles that have a slower rate of combustion and that more is produced in the early stages of combustion compared with later in the cycle. The majority of NO was produced via the thermal mechanism just after combustion begins. (author)

Etheridge, Jonathan; Mosbach, Sebastian; Kraft, Markus [Department of Chemical Engineering and Biotechnology, University of Cambridge (United Kingdom); Wu, Hao; Collings, Nick [Department of Engineering, University of Cambridge (United Kingdom)

2011-01-15T23:59:59.000Z

28

Validation of detailed thermal hydraulic models used for LMR safety and for improvement of technical specifications  

SciTech Connect (OSTI)

Detailed steady-state and transient coolant temperatures and flow rates from an operating reactor have been used to validate the multiple pin model in the SASSYS-1 liquid metal reactor systems analysis code. This multiple pin capability can be used for explicit calculations of axial and lateral temperature distributions within individual subassemblies. Thermocouples at a number of axial locations and in a number of different coolant sub-channels m the XXO9 instrumented subassembly in the EBR-II reactor provided temperature data from the Shutdown Heat Removal Test (SHRT) series. Flow meter data for XXO9 and for the overall system are also available from these tests. Results of consistent SASSYS-1 multiple pin analyses for both the SHRT-45 loss-of-flow-without-scram-test and the S14RT-17 protected loss-of-flow test agree well with the experimental data, providing validation of the SASSYS-1 code over a wide range of conditions.

Dunn, F.E.

1995-12-31T23:59:59.000Z

29

GyPSuM: A Detailed Tomographic Model of Mantle Density and Seismic Wave Speeds  

SciTech Connect (OSTI)

GyPSuM is a tomographic model fo mantle seismic shear wave (S) speeds, compressional wave (P) speeds and detailed density anomalies that drive mantle flow. the model is developed through simultaneous inversion of seismic body wave travel times (P and S) and geodynamic observations while considering realistic mineral physics parameters linking the relative behavior of mantle properties (wave speeds and density). Geodynamic observations include the (up to degree 16) global free-air gravity field, divergence of the tectonic plates, dynamic topography of the free surface, and the flow-induced excess ellipticity of the core-mantle boundary. GyPSuM is built with the philosophy that heterogeneity that most closely resembles thermal variations is the simplest possible solution. Models of the density field from Earth's free oscillations have provided great insight into the density configuration of the mantle; but are limited to very long-wavelength solutions. Alternatively, simply scaling higher resolution seismic images to density anomalies generates density fields that do not satisfy geodynamic observations. The current study provides detailed density structures in the mantle while directly satisfying geodynamic observations through a joint seismic-geodynamic inversion process. Notable density field observations include high-density piles at the base of the superplume structures, supporting the fundamental results of past normal mode studies. However, these features are more localized and lower amplitude than past studies would suggest. When we consider all seismic anomalies in GyPSuM, we find that P and S-wave speeds are strongly correlated throughout the mantle. However, correlations between the high-velocity S zones in the deep mantle ({approx} 2000 km depth) and corresponding P-wave anomalies are very low suggesting a systematic divergence from simplified thermal effects in ancient subducted slab anomalies. Nevertheless, they argue that temperature variations are the primary cause of P-wave, S-wave, and density anomalies in the mantle.

Simmons, N A; Forte, A M; Boschi, L; Grand, S P

2010-03-30T23:59:59.000Z

30

A Detailed Look at the First Results from the Large Underground Xenon (LUX) Dark Matter Experiment  

E-Print Network [OSTI]

LUX, the world's largest dual-phase xenon time-projection chamber, with a fiducial target mass of 118 kg and 10,091 kg-days of exposure thus far, is currently the most sensitive direct dark matter search experiment. The initial null-result limit on the spin-independent WIMP-nucleon scattering cross-section was released in October 2013, with a primary scintillation threshold of 2 phe, roughly 3 keVnr for LUX. The detector has been deployed at the Sanford Underground Research Facility (SURF) in Lead, South Dakota, and is the first experiment to achieve a limit on the WIMP cross-section lower than $10^{-45}$ cm$^{2}$. Here we present a more in-depth discussion of the novel energy scale employed to better understand the nuclear recoil light and charge yields, and of the calibration sources, including the new internal tritium source. We found the LUX data to be in conflict with low-mass WIMP signal interpretations of other results.

Szydagis, M; Araujo, H M; Bai, X; Bailey, A J; Balajthy, J; Bernard, E; Bernstein, A; Bradley, A; Byram, D; Cahn, S B; Carmona-Benitez, M C; Chan, C; Chapman, J J; Chiller, A A; Chiller, C; Coffey, T; Currie, A; de Viveiros, L; Dobi, A; Dobson, J; Druszkiewicz, E; Edwards, B; Faham, C H; Fiorucci, S; Flores, C; Gaitskell, R J; Gehman, V M; Ghag, C; Gibson, K R; Gilchriese, M G D; Hall, C; Hertel, S A; Horn, M; Huang, D Q; Ihm, M; Jacobsen, R G; Kazkaz, K; Knoche, R; Larsen, N A; Lee, C; Lindote, A; Lopes, M I; Malling, D C; Mannino, R; McKinsey, D N; Mei, D -M; Mock, J; Moongweluwan, M; Morad, J; Murphy, A St J; Nehrkorn, C; Nelson, H; Neves, F; Ott, R A; Pangilinan, M; Parker, P D; Pease, E K; Pech, K; Phelps, P; Reichhart, L; Shutt, T; Silva, C; Solovov, V N; Sorensen, P; O'Sullivan, K; Taylor, D; Tennyson, B; Tiedt, D R; Tripathi, M; Uvarov, S; Verbus, J R; Walsh, N; Webb, R; White, J T; Witherell, M S; Wolfs, F L H; Woods, M; Zhang, C

2014-01-01T23:59:59.000Z

31

A Detailed Look at the First Results from the Large Underground Xenon (LUX) Dark Matter Experiment  

E-Print Network [OSTI]

LUX, the world's largest dual-phase xenon time-projection chamber, with a fiducial target mass of 118 kg and 10,091 kg-days of exposure thus far, is currently the most sensitive direct dark matter search experiment. The initial null-result limit on the spin-independent WIMP-nucleon scattering cross-section was released in October 2013, with a primary scintillation threshold of 2 phe, roughly 3 keVnr for LUX. The detector has been deployed at the Sanford Underground Research Facility (SURF) in Lead, South Dakota, and is the first experiment to achieve a limit on the WIMP cross-section lower than $10^{-45}$ cm$^{2}$. Here we present a more in-depth discussion of the novel energy scale employed to better understand the nuclear recoil light and charge yields, and of the calibration sources, including the new internal tritium source. We found the LUX data to be in conflict with low-mass WIMP signal interpretations of other results.

M. Szydagis; D. S. Akerib; H. M. Araujo; X. Bai; A. J. Bailey; J. Balajthy; E. Bernard; A. Bernstein; A. Bradley; D. Byram; S. B. Cahn; M. C. Carmona-Benitez; C. Chan; J. J. Chapman; A. A. Chiller; C. Chiller; T. Coffey; A. Currie; L. de Viveiros; A. Dobi; J. Dobson; E. Druszkiewicz; B. Edwards; C. H. Faham; S. Fiorucci; C. Flores; R. J. Gaitskell; V. M. Gehman; C. Ghag; K. R. Gibson; M. G. D. Gilchriese; C. Hall; S. A. Hertel; M. Horn; D. Q. Huang; M. Ihm; R. G. Jacobsen; K. Kazkaz; R. Knoche; N. A. Larsen; C. Lee; A. Lindote; M. I. Lopes; D. C. Malling; R. Mannino; D. N. McKinsey; D. -M. Mei; J. Mock; M. Moongweluwan; J. Morad; A. St. J. Murphy; C. Nehrkorn; H. Nelson; F. Neves; R. A. Ott; M. Pangilinan; P. D. Parker; E. K. Pease; K. Pech; P. Phelps; L. Reichhart; T. Shutt; C. Silva; V. N. Solovov; P. Sorensen; K. O'Sullivan; T. Sumner; D. Taylor; B. Tennyson; D. R. Tiedt; M. Tripathi; S. Uvarov; J. R. Verbus; N. Walsh; R. Webb; J. T. White; M. S. Witherell; F. L. H. Wolfs; M. Woods; C. Zhang

2014-02-25T23:59:59.000Z

32

Detailed Balance Condition and Effective Free Energy in the Primitive Chain Network Model  

E-Print Network [OSTI]

We consider statistical mechanical properties of the primitive chain network (PCN) model for entangled polymers from its dynamic equations. We show that the dynamic equation for the segment number of the PCN model does not reduce to the standard Langevin equation which satisfies the detailed balance condition. We propose heuristic modifications for the PCN dynamic equation for the segment number, to make it reduce to the standard Langevin equation. We analyse some equilibrium statistical properties of the modified PCN model, by using the effective free energy obtained from the modified PCN dynamic equations. The PCN effective free energy can be interpreted as the sum of the ideal Gaussian chain free energy and the repulsive interaction energy between slip-links. By using the single chain approximation, we calculate several distribution functions of the PCN model. The obtained distribution functions are qualitatively different from ones for the simple slip-link model without any direct interactions between slip-links.

Takashi Uneyama; Yuichi Masubuchi

2011-10-18T23:59:59.000Z

33

Deciphering the details of RNA aminoglycoside interactions: from atomistic models to biotechnological applications  

SciTech Connect (OSTI)

A detailed study was done of the neomycin-B RNA aptamer for determining its selectivity and binding ability to both neomycin– and kanamycin-class aminoglycosides. A novel method to increase drug concentrations in cells for more efficiently killing is described. To test the method, a bacterial model system was adopted and several small RNA molecules interacting with aminoglycosides were cloned downstream of T7 RNA polymerase promoter in an expression vector. Then, the growth analysis of E. coli expressing aptamers was observed for 12-hour period. Our analysis indicated that aptamers helped to increase the intracellular concentration of aminoglycosides thereby increasing their efficacy.

Ilgu, Muslum

2012-07-23T23:59:59.000Z

34

Multiphysics modeling of carbon gasification processes in a well-stirred reactor with detailed gas-phase chemistry  

E-Print Network [OSTI]

Multiphysics modeling of carbon gasification processes in a well-stirred reactor with detailed gas: Coal gasification Carbon gasification Detailed chemistry Heterogeneous surface reactions Radiation Multi-physics numerical modeling a b s t r a c t Fuel synthesis through coal and biomass gasification

Qiao, Li

35

Autoignition of toluene reference fuels at high pressures modeled with detailed chemical kinetics  

SciTech Connect (OSTI)

A detailed chemical kinetic model for the autoignition of toluene reference fuels (TRF) is presented. The toluene submechanism added to the Lawrence Livermore Primary Reference Fuel (PRF) mechanism was developed using recent shock tube autoignition delay time data under conditions relevant to HCCI combustion. For two-component fuels the model was validated against recent high-pressure shock tube autoignition delay time data for a mixture consisting of 35% n-heptane and 65% toluene by liquid volume. Important features of the autoignition of the mixture proved to be cross-acceleration effects, where hydroperoxy radicals produced during n-heptane oxidation dramatically increased the oxidation rate of toluene compared to the case when toluene alone was oxidized. Rate constants for the reaction of benzyl and hydroperoxyl radicals previously used in the modeling of the oxidation of toluene alone were untenably high for modeling of the mixture. To model both systems it was found necessary to use a lower rate and introduce an additional branching route in the reaction between benzyl radicals and O{sub 2}. Good agreement between experiments and predictions was found when the model was validated against shock tube autoignition delay data for gasoline surrogate fuels consisting of mixtures of 63-69% isooctane, 14-20% toluene, and 17% n-heptane by liquid volume. Cross reactions such as hydrogen abstractions between toluene and alkyl and alkylperoxy radicals and between the PRF were introduced for completion of chemical description. They were only of small importance for modeling autoignition delays from shock tube experiments, even at low temperatures. A single-zone engine model was used to evaluate how well the validated mechanism could capture autoignition behavior of toluene reference fuels in a homogeneous charge compression ignition (HCCI) engine. The model could qualitatively predict the experiments, except in the case with boosted intake pressure, where the initial temperature had to be increased significantly in order to predict the point of autoignition. (author)

Andrae, J.C.G. [Department of Chemical Engineering and Technology, Royal Institute of Technology, SE-100 44 Stockholm (Sweden); Shell Global Solutions, P.O. Box 1, Chester CH1 3SH (United Kingdom); Bjoernbom, P. [Department of Chemical Engineering and Technology, Royal Institute of Technology, SE-100 44 Stockholm (Sweden); Cracknell, R.F.; Kalghatgi, G.T. [Shell Global Solutions, P.O. Box 1, Chester CH1 3SH (United Kingdom)

2007-04-15T23:59:59.000Z

36

Network-constrained models of liberalized electricity markets: the devil is in the details  

E-Print Network [OSTI]

Numerical models for electricity markets are frequently used to inform and support decisions. How robust are the results? Three research groups used the same, realistic data set for generators, demand and transmission network as input...

Barquin, J; Boots, M G; Ehrenmann, A; Hobbs, Benjamin F; Neuhoff, Karsten; Rijkers, F A M

2004-06-16T23:59:59.000Z

37

A DETAILED MODEL ATMOSPHERE ANALYSIS OF COOL WHITE DWARFS IN THE SLOAN DIGITAL SKY SURVEY  

SciTech Connect (OSTI)

We present optical spectroscopy and near-infrared photometry of 126 cool white dwarfs (WDs) in the Sloan Digital Sky Survey (SDSS). Our sample includes high proper motion targets selected using the SDSS and USNO-B astrometry and a dozen previously known ultracool WD candidates. Our optical spectroscopic observations demonstrate that a clean selection of large samples of cool WDs in the SDSS (and the SkyMapper, Pan-STARRS, and the Large Synoptic Survey Telescope data sets) is possible using a reduced proper motion diagram and a tangential velocity cut-off (depending on the proper motion accuracy) of 30 km s{sup -1}. Our near-infrared observations reveal eight new stars with significant absorption. We use the optical and near-infrared photometry to perform a detailed model atmosphere analysis. More than 80% of the stars in our sample are consistent with either pure hydrogen or pure helium atmospheres. However, the eight stars with significant infrared absorption and the majority of the previously known ultracool WD candidates are best explained with mixed hydrogen and helium atmosphere models. The age distribution of our sample is consistent with a Galactic disk age of 8 Gyr. A few ultracool WDs may be as old as 12-13 Gyr, but our models have problems matching the spectral energy distributions of these objects. There are only two halo WD candidates in our sample. However, trigonometric parallax observations are required for accurate mass and age determinations and to confirm their membership in the halo.

Kilic, Mukremin [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Leggett, S. K. [Gemini Observatory, 670 N. A'ohoku Place, Hilo, HI 96720 (United States); Tremblay, P.-E.; Bergeron, P. [Departement de Physique, Universite de Montreal, C.P. 6128, Succursale Centre-Ville, Montreal, Quebec H3C 3J7 (Canada); Von Hippel, Ted [Physics Department, Siena College, 515 Loudon Road, Loudonville, NY 12211 (United States); Harris, Hugh C.; Munn, Jeffrey A. [U.S. Naval Observatory, Flagstaff Station, 10391 W. Naval Observatory Road, Flagstaff, AZ 86001 (United States); Williams, Kurtis A. [Department of Astronomy, 1 University Station C1400, Austin, TX 78712 (United States); Gates, Evalyn [Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics, The University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637 (United States); Farihi, J., E-mail: mkilic@cfa.harvard.ed [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom)

2010-09-15T23:59:59.000Z

38

Effect of Detailed Power System Models in Traditional and Voltage Stability Constrained  

E-Print Network [OSTI]

problems to improve the accuracy of the results. It is shown in [2] that reactive power limits play], [9], [10], it is demonstrated that reactive power limits play a significant role in voltage collapse of power systems. Therefore, particular attention is placed here to the modeling of reactive power limits

Cañizares, Claudio A.

39

Detailed validation of an empirical model for viscous fingering with gravity effects  

SciTech Connect (OSTI)

This paper extends to two-dimensional (2D) flows the derivation and validation of an empirical model for viscous fingering previously developed. Fine-scale numerical simulations are used to provide basic data for validating the approximations, and these fingering results are also checked against a range of experiments. The flow rate dependence of gravity segregation in vertical section experiments conducted by van der Poel is examined, where the broadly acceptable agreement of the empirical model is limited by some identified additional features.

Fayers, F.J.; Newley, T.M.J.

1988-05-01T23:59:59.000Z

40

Detailed kinetic models for the low-temperature auto ignition of gasoline surrogates  

E-Print Network [OSTI]

In the context of the search for gasoline surrogates for kinetic modeling purpose, this paper describes a new model for the low-temperature auto-ignition of n-heptane/iso-octane/hexene/toluene blends for the different linear isomers of hexene. The model simulates satisfactory experimental results obtained in a rapid compression machine for temperatures ranging from 650 to 850 K in the case of binary and ternary mixtures including iso octane, 1-hexene and toluene. Predictive simulations have also been performed for the autoignition of n heptane/iso octane/hexene/toluene quaternary mixtures: the predicted reactivity is close to that of pure iso octane with a retarding effect when going from 1- to 3-alkene.

Bounaceur, Roda; Fournet, René; Warth, Valérie; Battin-Leclerc, Frédérique

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" from the National Library of EnergyBeta (NLEBeta).
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41

A Plug-in Hybrid Consumer Choice Model with Detailed Market Segmentation  

SciTech Connect (OSTI)

This paper describes a consumer choice model for projecting U.S. demand for plug-in hybrid electric vehicles (PHEV) in competition among 13 light-duty vehicle technologies over the period 2005-2050. New car buyers are disaggregated by region, residential area, attitude toward technology risk, vehicle usage intensity, home parking and work recharging. The nested multinomial logit (NMNL) model of vehicle choice incorporates daily vehicle usage distributions, refueling and recharging availability, technology learning by doing, and diversity of choice among makes and models. Illustrative results are presented for a Base Case, calibrated to the Annual Energy Outlook (AEO) 2009 Reference Updated Case, and an optimistic technology scenario reflecting achievement of U.S. Department of Energy s (DOE s) FreedomCAR goals. PHEV market success is highly dependent on the degree of technological progress assumed. PHEV sales reach one million in 2037 in the Base Case but in 2020 in the FreedomCARGoals Case. In the FreedomCARGoals Case, PHEV cumulative sales reach 1.5 million by 2015. Together with efficiency improvements in other technologies, petroleum use in 2050 is reduced by about 45% from the 2005 level. After technological progress, PHEV s market success appears to be most sensitive to recharging availability, consumers attitudes toward novel echnologies, and vehicle usage intensity. Successful market penetration of PHEVs helps bring down battery costs for electric vehicles (EVs), resulting in a significant EV market share after 2040.

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

2010-01-01T23:59:59.000Z

42

Detailed modeling of the evaporation and thermal decomposition of urea-water-solution in SCR systems  

E-Print Network [OSTI]

on the UWS evaporation is taken into account using a NRTL activity model. The thermal decomposition model

Boyer, Edmond

43

Wax precipitation for gas condensate fluids was studied in detail with a thermodynamic model. It was found that the precipitated  

E-Print Network [OSTI]

Summary Wax precipitation for gas condensate fluids was studied in detail with a thermodynamic to that in gas condensates. As a result of pressure decrease (at a constant tem- perature), the amount is undesirable. The flowlines may be plugged by wax deposition. For both crude oils and gas condensates, one may

Firoozabadi, Abbas

44

Technology detail in a multi-sector CGE model : transport under climate policy  

E-Print Network [OSTI]

A set of three analytical models is used to study the imbedding of specific transport technologies within a multi-sector, multi-region evaluation of constraints on greenhouse emissions. Key parameters of a computable general ...

Schafer, Andreas.

45

Applying Engineering and Fleet Detail to Represent Passenger Vehicle Transport in a Computable General Equilibrium Model  

E-Print Network [OSTI]

A well-known challenge in computable general equilibrium (CGE) models is to maintain correspondence between the forecasted economic and physical quantities over time. Maintaining such a correspondence is necessary to ...

Karplus, V.J.

46

An experimental and detailed chemical kinetic modelling study of 2methyl furan oxidation  

E-Print Network [OSTI]

Glaudeb , Henry J. Currana a Combustion Chemistry Centre, School of Chemistry, NUI Galway, Ireland speed, ignition delay time, kinetic modelling, biofuel. * address: Combustion Chemistry Centre ethanol by some 40%, rivaling that of gasoline, with its higher boiling point (366 K) and lower aqueous

Paris-Sud XI, Université de

47

Detailed Chemical Kinetic Modeling of Iso-octane SI-HCCI Transition  

SciTech Connect (OSTI)

We describe a CHEMKIN-based multi-zone model that simulates the expected combustion variations in a single-cylinder engine fueled with iso-octane as the engine transitions from spark-ignited (SI) combustion to homogenous charge compression ignition (HCCI) combustion. The model includes a 63-species reaction mechanism and mass and energy balances for the cylinder and the exhaust flow. For this study we assumed that the SI-to-HCCI transition is implemented by means of increasing the internal exhaust gas recirculation (EGR) at constant engine speed. This transition scenario is consistent with that implemented in previously reported experimental measurements on an experimental engine equipped with variable valve actuation. We find that the model captures many of the important experimental trends, including stable SI combustion at low EGR (-0.10), a transition to highly unstable combustion at intermediate EGR, and finally stable HCCI combustion at very high EGR (-0.75). Remaining differences between the predicted and experimental instability patterns indicate that there is further room for model improvement.

Havstad, Mark A [Lawrence Livermore National Laboratory (LLNL); Aceves, Salvador M [Lawrence Livermore National Laboratory (LLNL); McNenly, Matthew J [Lawrence Livermore National Laboratory (LLNL); Piggott, William T [Lawrence Livermore National Laboratory (LLNL); Edwards, Kevin Dean [ORNL; Wagner, Robert M [ORNL; Daw, C Stuart [ORNL; FINNEY, Charles E A [ORNL

2010-01-01T23:59:59.000Z

48

Modeling particle formation during low-pressure silane oxidation: Detailed chemical kinetics and aerosol dynamics  

E-Print Network [OSTI]

that the generation of SiOHx species from fast gas- phase reactions can significantly degrade film quality. Based conservation equations and a moment-type aerosol dynamics model were formulated for a batch reactor undergoing to impurity diffusion.1 During LPCVD film deposition rates are limited by the gas-phase nucleation

Zachariah, Michael R.

49

Detailed OEDGE modeling of core-pedestal fueling in DIII-D  

SciTech Connect (OSTI)

The OEDGE code is used to model core fueling for attached L-mode plasmas and between edge localized modes (ELMs) for attached H-mode plasmas in DIII-D. Empirical plasma reconstruction has been used to determine the plasma conditions in these discharges. EIRENE is used to model the hydrogen recycling. Divertor recycling accounts for 65 100% of the core fueling. The fraction of the total divertor target flux ionized inside the separatrix ranges from 5% to 20%. The fraction of total wall flux ionized inside the separatrix ranges from 20% to 50%. Neutrals originating from wall regions closer to the separatrix are more likely to ionize in the confined plasma. Ionization in the confined plasma is concentrated below the midplane with peaks in the poloidal profiles just above the X-point. Radial core ionization in high density H-mode is peaked strongly near the separatrix.

Elder, J. D. [University of Toronto, Canada; Leonard, A. W. [General Atomics; Stangeby, P. C. [University of Toronto, Canada; Boedo, J.A. [University of California, San Diego; Bray, B. D. [General Atomics, San Diego; Brooks, N. H. [General Atomics, San Diego; Fenstermacher, M. E. [Lawrence Livermore National Laboratory (LLNL); Reiter, D. [Forschungszentrum Julich, Julich, Germany; Unterberg, Ezekial A [ORNL; Watkins, J. G. [Sandia National Laboratories (SNL); Lisgo, S. [EURATOM CCFE Fus Assoc, Culham Sci Ctr, Abingdon, Oxon, England

2013-01-01T23:59:59.000Z

50

Detailed Modeling of HCCI and PCCI combustion and Multi-cylinder HCCI  

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 Company AgreesDesiree Pipkins AboutCourse

51

Detailed Chemical Kinetic Modeling of Surrogate Fuels for Gasoline and Application to an HCCI Engine  

SciTech Connect (OSTI)

Gasoline consists of many different classes of hydrocarbons, such as paraffins, olefins, aromatics, and cycloalkanes. In this study, a surrogate gasoline reaction mechanism is developed, and it has one representative fuel constituent from each of these classes. These selected constituents are iso-octane, n-heptane, 1-pentene, toluene, and methyl-cyclohexane. The mechanism was developed in a step-wise fashion, adding submechanisms to treat each fuel component. Reactions important for low temperature oxidation (<1000K) and cross-reactions among different fuels are incorporated into the mechanism. The mechanism consists of 1214 species and 5401 reactions. A single-zone engine model is used to evaluate how well the mechanism captures autoignition behavior for conditions corresponding to homogeneous charge compression ignition (HCCI) engine operation. Experimental data are available for both how the combustion phasing changes with fueling at a constant intake temperature, and also how the intake temperature has to be changed with pressure in order to maintain combustion phasing for a fixed equivalence ratio. Three different surrogate fuel mixtures are used for the modeling. Predictions are in reasonably good agreement with the engine data. In addition, the heat release rate is calculated and compared to the data from experiments. The model predicts less low-temperature heat release than that measured. It is found that the low temperature heat-release rate depends strongly on engine speed, reactions of RO{sub 2}+HO{sub 2}, fuel composition, and pressure boost.

Naik, C V; Pitz, W J; Sj?berg, M; Dec, J E; Orme, J; Curran, H J; Simmie, J M; Westbrook, C K

2005-01-07T23:59:59.000Z

52

Improving alternative fuel utilization: detailed kinetic combustion...  

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

Improving alternative fuel utilization: detailed kinetic combustion modeling & experimental testing Improving alternative fuel utilization: detailed kinetic combustion modeling &...

53

A detailed kinetic modeling study of toluene oxidation in a premixed laminar flame  

SciTech Connect (OSTI)

An improved chemical kinetic model for the toluene oxidation based on experimental data obtained in a premixed laminar low-pressure flame with vacuum ultraviolet (VUV) photoionization and molecular beam mass spectrometry (MBMS) techniques has been proposed. The present mechanism consists of 273 species up to chrysene and 1740 reactions. The rate constants of reactions of toluene, decomposition, reaction with oxygen, ipso-additions and metatheses with abstraction of phenylic H-atom are updated; new pathways of C{sub 4} + C{sub 2} species giving benzene and fulvene are added. Based on the experimental observations, combustion intermediates such as fulvenallene, naphtol, methylnaphthalene, acenaphthylene, 2-ethynylnaphthalene, phenanthrene, anthracene, 1-methylphenanthrene, pyrene and chrysene are involved in the present mechanism. The final toluene model leads to an overall satisfactory agreement between the experimentally observed and predicted mole fraction profiles for the major products and most combustion intermediates. The toluene depletion is governed by metathese giving benzyl radicals, ipso-addition forming benzene and metatheses leading to C{sub 6}H{sub 4}CH{sub 3} radicals. A sensitivity analysis indicates that the unimolecular decomposition via the cleavage of a C-H bond has a strong inhibiting effect, while decomposition via C-C bond breaking, ipso-addition of H-atom to toluene, decomposition of benzyl radicals and reactions related to C{sub 6}H{sub 4}CH{sub 3} radicals have promoting effect for the consumption of toluene. Moreover, flow rate analysis is performed to illustrate the formation pathways of mono- and polycyclic aromatics.

Tian, Z; Pitz, W J; Fournet, R; Glaude, P; Battin-Leclerc, F

2009-12-18T23:59:59.000Z

54

Sensitivity of natural gas HCCI combustion to fuel and operating parameters using detailed kinetic modeling  

SciTech Connect (OSTI)

This paper uses the HCT (Hydrodynamics, Chemistry and Transport) chemical kinetics code to analyze natural gas HCCI combustion in an engine. The HCT code has been modified to better represent the conditions existing inside an engine, including a wall heat transfer correlation. Combustion control and low power output per displacement remain as two of the biggest challenges to obtaining satisfactory performance out of an HCCI engine, and these are addressed in this paper. The paper considers the effect of natural gas composition on HCCI combustion, and then explores three control strategies for HCCI engines: DME (dimethyl ether) addition, intake heating and hot EGR addition. The results show that HCCI combustion is sensitive to natural gas composition, and an active control may be required to compensate for possible changes in composition. The three control strategies being considered have a significant effect in changing the combustion parameters for the engine, and should be able to control HCCI combustion.

Aceves, S; Dibble, R; Flowers, D; Smith, J R; Westbrook, C K

1999-07-19T23:59:59.000Z

55

Going Beyond a RESNET Certification for Code-Compliant Simulations: A Comparison of Detailed Results of Three RESNET-Certified, Code-Compliant Residential Simulation Programs  

E-Print Network [OSTI]

on the cooling and heating energy use from this adjustment was not resolved. Therefore, a more detailed understanding of the Software-2 simulation programs is needed to accomplish the comparison with IC3 or Software-1 on the standard reference house. ESL... compared to IC3 and Software-2. Standard Reference House in Houston: Large differences were found in the standard reference house simulation results from the three performance calculators. The IC3 calculated total annual energy use was 77.7 MMBtu...

Liu, Z.; Kim, H.; Malhotra, M.; Mukhopadhyay, J.; Baltazar, J. C.; Haberl, J.; Culp, C.; Yazdani, B.; Montgomery, C.

56

An interferometric study of the Fomalhaut inner debris disk. III. Detailed models of the exozodiacal disk and its origin  

E-Print Network [OSTI]

[Abridged] Debris disks are extrasolar analogs to the solar system planetesimal belts. The star Fomalhaut harbors a cold debris belt at 140 AU as well as evidence of a warm dust component, which is suspected of being a bright analog to the solar system's zodiacal dust. Interferometric observations obtained with the VLTI and the KIN have identified near- and mid-infrared excesses attributed to hot and warm exozodiacal dust in the inner few AU of the star. We performed parametric modeling of the exozodiacal disk using the GRaTeR radiative transfer code to reproduce the interferometric data, complemented by mid- to far-infrared measurements. A detailed treatment of sublimation temperatures was introduced to explore the hot population at the sublimation rim. We then used an analytical approach to successively testing several source mechanisms. A good fit to the data is found by two distinct dust populations: (1) very small, hence unbound, hot dust grains confined in a narrow region at the sublimation rim of carbo...

Lebreton, J; Augereau, J -C; Absil, O; Mennesson, B; Kama, M; Dominik, C; Bonsor, A; Vandeportal, J; Beust, H; Defrère, D; Ertel, S; Faramaz, V; Hinz, P; Kral, Q; Lagrange, A -M; Liu, W; Thébault, P

2013-01-01T23:59:59.000Z

57

Legrand BBBP Implementation Model Designed for Results  

E-Print Network [OSTI]

SUSTAINABILITY Legrand North America Designed for Results BBBP Implementation Model Pete Horton, VP Business Development, Legrand/Watt Stopper Industrial Energy Technology Conference May 23, 2013 May 23, 20133 ESL-IE-13-05-21 Proceedings..., we are committed to helping our customers become more sustainable by offering products that contribute to improving sustainability throughout the lifecycle of the building. Legrand Overview Legrand, North America is part of the Legrand Group, a...

Horton, P.

2013-01-01T23:59:59.000Z

58

Prognostic Importance of Gleason 7 Disease Among Patients Treated With External Beam Radiation Therapy for Prostate Cancer: Results of a Detailed Biopsy Core Analysis  

SciTech Connect (OSTI)

Purpose: To analyze the effect of primary Gleason (pG) grade among a large cohort of Gleason 7 prostate cancer patients treated with external beam radiation therapy (EBRT). Methods and Materials: From May 1989 to January 2011, 1190 Gleason 7 patients with localized prostate cancer were treated with EBRT at a single institution. Of these patients, 613 had a Gleason 7 with a minimum of a sextant biopsy with nonfragmented cores and full biopsy core details available, including number of cores of cancer involved, percentage individual core involvement, location of disease, bilaterality, and presence of perineural invasion. Median follow-up was 6 years (range, 1-16 years). The prognostic implication for the following outcomes was analyzed: biochemical recurrence-free survival (bRFS), distant metastasis-free survival (DMFS), and prostate cancer-specific mortality (PCSM). Results: The 8-year bRFS rate for pG3 versus pG4 was 77.6% versus 61.3% (P<.0001), DMFS was 96.8% versus 84.3% (P<.0001), and PCSM was 3.7% versus 8.1% (P=.002). On multivariate analysis, pG4 predicted for significantly worse outcome in all parameters. Location of disease (apex, base, mid-gland), perineural involvement, maximum individual core involvement, and the number of Gleason 3+3, 3+4, or 4+3 cores did not predict for distant metastases. Conclusions: Primary Gleason grade 4 independently predicts for worse bRFS, DMFS, and PCSM among Gleason 7 patients. Using complete core information can allow clinicians to utilize pG grade as a prognostic factor, despite not having the full pathologic details from a prostatectomy specimen. Future staging and risk grouping should investigate the incorporation of primary Gleason grade when complete biopsy core information is used.

Spratt, Daniel E.; Zumsteg, Zach; Ghadjar, Pirus; Pangasa, Misha; Pei, Xin [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Fine, Samson W. [Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Yamada, Yoshiya; Kollmeier, Marisa [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Zelefsky, Michael J., E-mail: zelefskm@mskcc.org [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)

2013-04-01T23:59:59.000Z

59

Vegetated Roof Water-Balance Model: Experimental and Model Results  

E-Print Network [OSTI]

urbanization effects on the water cycle. Although there are many stormwater best management practices (BMPs (ET) and soil media water storage between storm events. Lazzarin et al. (2005) estimated that ET ratesVegetated Roof Water-Balance Model: Experimental and Model Results James A. Sherrard Jr.1

60

COMPARING MODEL RESULTS TO NATIONAL CLIMATE POLICY GOALS: RESULTS FROM THE ASIA MODELING EXERCISE  

SciTech Connect (OSTI)

While the world has yet to adopt a single unified policy to limit climate change, many countries and regions have adopted energy and climate policies that have implications for global emissions. In this paper, we discuss a few key policies and how they are included in a set of 24 energy and integrated assessment models that participated in the Asia Modeling Exercise. We also compare results from these models for a small set of stylized scenarios to the pledges made as part of the Copenhagen Accord and the goals stated by the Major Economies Forum. We find that the targets outlined by the United States, the European Union, Japan, and Korea require significant policy action in most of the models analyzed. For most of the models in the study, however, the goals outlined by India are met without any climate policy. The stringency of climate policy required to meet China’s Copenhagen pledges varies across models and accounting methodologies.

Calvin, Katherine V.; Fawcett, Allen A.; Jiang, Kejun

2012-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" 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

Modeling results for the ITER cryogenic fore pump  

SciTech Connect (OSTI)

The cryogenic fore pump (CFP) is designed for ITER to collect and compress hydrogen isotopes during the regeneration process of torus cryopumps. Different from common cryopumps, the ITER-CFP works in the viscous flow regime. As a result, both adsorption boundary conditions and transport phenomena contribute unique features to the pump performance. In this report, the physical mechanisms of cryopumping are studied, especially the diffusion-adsorption process and these are coupled with standard equations of species, momentum and energy balance, as well as the equation of state. Numerical models are developed, which include highly coupled non-linear conservation equations of species, momentum and energy and equation of state. Thermal and kinetic properties are treated as functions of temperature, pressure, and composition. To solve such a set of equations, a novel numerical technique, identified as the Group-Member numerical technique is proposed. It is presented here a 1D numerical model. The results include comparison with the experimental data of pure hydrogen flow and a prediction for hydrogen flow with trace helium. An advanced 2D model and detailed explanation of the Group-Member technique are to be presented in following papers.

Zhang, D. S.; Miller, F. K.; Pfotenhauer, J. M. [University of Wisconsin-Madison, Madison, WI 53706 (United States)

2014-01-29T23:59:59.000Z

62

Engineering Glass Passivation Layers -Model Results  

SciTech Connect (OSTI)

The immobilization of radioactive waste into glass waste forms is a baseline process of nuclear waste management not only in the United States, but worldwide. The rate of radionuclide release from these glasses is a critical measure of the quality of the waste form. Over long-term tests and using extrapolations of ancient analogues, it has been shown that well designed glasses exhibit a dissolution rate that quickly decreases to a slow residual rate for the lifetime of the glass. The mechanistic cause of this decreased corrosion rate is a subject of debate, with one of the major theories suggesting that the decrease is caused by the formation of corrosion products in such a manner as to present a diffusion barrier on the surface of the glass. Although there is much evidence of this type of mechanism, there has been no attempt to engineer the effect to maximize the passivating qualities of the corrosion products. This study represents the first attempt to engineer the creation of passivating phases on the surface of glasses. Our approach utilizes interactions between the dissolving glass and elements from the disposal environment to create impermeable capping layers. By drawing from other corrosion studies in areas where passivation layers have been successfully engineered to protect the bulk material, we present here a report on mineral phases that are likely have a morphological tendency to encrust the surface of the glass. Our modeling has focused on using the AFCI glass system in a carbonate, sulfate, and phosphate rich environment. We evaluate the minerals predicted to form to determine the likelihood of the formation of a protective layer on the surface of the glass. We have also modeled individual ions in solutions vs. pH and the addition of aluminum and silicon. These results allow us to understand the pH and ion concentration dependence of mineral formation. We have determined that iron minerals are likely to form a complete incrustation layer and we plan to look more closely at Vivianite [Fe3(PO4)2-8(H2O)] and Siderite [FeCO3] in the next stage of the project.

Skorski, Daniel C.; Ryan, Joseph V.; Strachan, Denis M.; Lepry, William C.

2011-08-08T23:59:59.000Z

63

Meticulously Detailed Eye Region Model and Its Application to Analysis... file:///D:/EndNotesData/Emotion-Converted.Data/PDF/TPAMI%20Publ... 1 of 17 2/24/2008 9:30 PM  

E-Print Network [OSTI]

Meticulously Detailed Eye Region Model and Its Application to Analysis... file-8828/06/$20.00 © 2006 IEEE Published by the IEEE Computer Society Meticulously Detailed Eye Region Model and Its of detailed analysis of eye region images in terms of the position of the iris, degree of eyelid opening

Cohn, Jeffrey F.

64

Uncalibrated Building Energy Simulation Modeling Results  

E-Print Network [OSTI]

for the Level 1 and Level 2 models with measured data for WERC (2004 post-commissioning data). ESL-PA-06-10-01 VOLUME 12, NUMBER 4, OCTOBER 2006 1151 Figure 6. Comparison of simulated daily total energy consumption for the Level 1 and Level 2 models with 1999...,450 m2]), the simulation using 1999 data underestimates the energy use in all categories except the whole building electrical usage. Table 3 identifies the magnitude of these discrepancies for a full year’s consumption. The Level 1 model actually per...

Ahmad, M.; Culp, C.H.

65

Dark Stars: Improved Models and First Pulsation Results  

E-Print Network [OSTI]

We use the stellar evolution code MESA to study dark stars. Dark stars (DSs), which are powered by dark matter (DM) self-annihilation rather than by nuclear fusion, may be the first stars to form in the Universe. We compute stellar models for accreting DSs with masses up to 10^6 M_{sun}. The heating due to DM annihilation is self-consistently included, assuming extended adiabatic contraction of DM within the minihalos in which DSs form. We find remarkably good overall agreement with previous models, which assumed polytropic interiors. There are some differences in the details, with positive implications for observability. We found that, in the mass range of 10^4 -10^5 M_{sun}, our DSs are hotter by a factor of 1.5 than those in Freese et al.(2010), are smaller in radius by a factor of 0.6, denser by a factor of 3 - 4, and more luminous by a factor of 2. Our models also confirm previous results, according to which supermassive DSs are very well approximated by (n=3)-polytropes. We also perform a first study of dark star pulsations. Our DS models have pulsation modes with timescales ranging from less than a day to more than two years in their rest frames, at z ~ 15, depending on DM particle mass and overtone number. Such pulsations may someday be used to identify bright, cool objects uniquely as DSs; if properly calibrated, they might, in principle, also supply novel standard candles for cosmological studies.

Tanja Rindler-Daller; Michael H. Montgomery; Katherine Freese; Donald E. Winget; Bill Paxton

2015-01-12T23:59:59.000Z

66

H2A Delivery Models and Results  

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

Approach * Discounted cash-flow rate-of-return analysis * Estimate levelized selling price of hydrogen required to attain a specified internal rate of return - Result is minimum...

67

Going Beyond a Resnet Certification for Code-Compliant Simulations: A Sensitivity Analysis of Detailed Results of Three RESNET-Certified, Code-Compliant Residential Simulation Programs  

E-Print Network [OSTI]

2. Based on the values listed in COMPARISON OF SIMULATION RESULTS Table 2, two locations were simulated in this analysis, Houston and Dallas. All simulations used the TMY2 hourly weather data. Figure 1 and Table 3 shows the total energy use... 2500 2500 Conditioned Area 2500 Average Wall Height 8 8 Average Wall Height 8 8 Conditioned Volume 20000 CLIMATE CLIMATE CLIMATE Location Houston Houston Location Houston Houston Location Houston Weather File TMY2 TMY2 Weather File TMY2 TMY2 HDD...

Haberl, J.; Liu, Z.; Mukhopadhyay, J.; Baltazar, J. C.; Culp, C.; Yazdani, B.; Montgomery, C.; Kim, H.

2010-01-01T23:59:59.000Z

68

Results of detailed analyses performed on boring cores extracted from the concrete floors of the Fukushima Daiichi nuclear power plant reactor buildings  

SciTech Connect (OSTI)

Due to the massive earthquake and tsunami on March 11, 2011, and the following severe accident at the Fukushima Daiichi Nuclear Power Plant, concrete surfaces within the reactor buildings were exposed to radioactive liquid and vapor phase contaminants. In order to clarify the situation of this contamination in the reactor buildings of Units 1, 2 and 3, selected samples were transported to the Fuels Monitoring Facility in the Oarai Engineering Center of JAEA where they were subjected to analyses to determine the surface radionuclide concentrations and to characterize the radionuclide distributions in the samples. In particular, penetration of radiocesium in the surface coatings layer and sub-surface concrete was evaluated. The analysis results indicate that the situation of contamination in the building of Unit 2 was different from others, and the protective surface coatings on the concrete floors provided significant protection against radionuclide penetration. The localized penetration of contamination in the concrete floors was found to be confined within a millimeter of the surface of the coating layer of some millimeters. (authors)

Maeda, Koji; Sasaki, S.; Kumai, M.; Sato, Isamu; Osaka, Masahiko; Fukushima, Mineo; Kawatsuma, Shinji [Japan Atomic Energy Agency, 4002 Narita, Oarai, Ibaraki 311-1393 (Japan); Goto, Tetsuo; Sakai, Hitoshi [Toshiba Corporation, 8, Shinsugita, Isogo-ku, Yokohama 235-8523 (Japan); Chigira, Takayuki; Murata, Hirotoshi [Tokyo Electric Power Company, 1-1-3 Uchisaiwai, Chiyoda-ku, Tokyo, 100-8560 (Japan)

2013-07-01T23:59:59.000Z

69

Detailed chemical kinetic models for large n-alkanes and iso-alkanes found in conventional and F-T diesel fuels  

SciTech Connect (OSTI)

Detailed chemical kinetic models are needed to simulate the combustion of current and future transportation fuels. These models should represent the various chemical classes in these fuels. Conventional diesel fuels are composed of n-alkanes, iso-alkanes, cycloalkanes and aromatics (Farrell et al. 2007). For future fuels, there is a renewed interest in Fischer-Tropsch (F-T) processes which can be used to synthesize diesel and other transportation fuels from biomass, coal and natural gas. F-T diesel fuels are expected to be similar to F-T jet fuels which are commonly comprised of iso-alkanes with some n-alkanes (Smith and Bruno, 2008). Thus, n-alkanes and iso-alkanes are common chemical classes in these conventional and future fuels. This paper reports on the development of chemical kinetic models of large n-alkanes and iso-alkanes to represent these chemical classes in conventional and future fuels. Two large iso-alkanes are 2,2,4,4,6,8,8-heptamethylnonane, which is a primary reference fuel for diesel, and isooctane, a primary reference fuel for gasoline. Other iso-alkanes are branched alkanes with a single methyl side chain, typical of most F-T fuels. The chemical kinetic models are then used to predict the effect of these fuel components on ignition characteristics under conditions found in internal combustion engines.

Westbrook, C K; Pitz, W J; Curran, H J; Mehl, M

2008-12-15T23:59:59.000Z

70

Detailed search Miscellaneous  

E-Print Network [OSTI]

Search Go Detailed search Miscellaneous Press sources (PhysicsWeb.org) Based on information from press sources (PhysicsWeb.org) Scientific Research; Nuclear Fusion; Renewable Sources of Energy

71

Modeling and simulation of HVAC Results in EnergyPlus  

E-Print Network [OSTI]

LBNL-5564E Modeling and simulation of HVAC Results in EnergyPlus Mangesh Basarkar, Xiufeng Pang;MODELING AND SIMULATION OF HVAC FAULTS IN ENERGYPLUS Mangesh Basarkar, Xiufeng Pang, Liping Wang, Philip not capture the significant impact of installation, operational and degradation HVAC system faults on actual

72

Energy-aware scheduling: models and complexity results  

E-Print Network [OSTI]

Energy-aware scheduling: models and complexity results Guillaume Aupy (1st year PhD student) LIP several energy-aware scheduling algorithms whose design is optimized for different speed models. Dynamic plans. I. INTRODUCTION Energy-aware scheduling has proven an important issue in the past decade, both

Paris-Sud XI, Université de

73

DIRECT N-BODY MODELING OF THE OLD OPEN CLUSTER NGC 188: A DETAILED COMPARISON OF THEORETICAL AND OBSERVED BINARY STAR AND BLUE STRAGGLER POPULATIONS  

SciTech Connect (OSTI)

Following on from a recently completed radial-velocity survey of the old (7 Gyr) open cluster NGC 188 in which we studied in detail the solar-type hard binaries and blue stragglers of the cluster, here we investigate the dynamical evolution of NGC 188 through a sophisticated N-body model. Importantly, we employ the observed binary properties of the young (180 Myr) open cluster M35, where possible, to guide our choices for parameters of the initial binary population. We apply pre-main-sequence tidal circularization and a substantial increase to the main-sequence tidal circularization rate, both of which are necessary to match the observed tidal circularization periods in the literature, including that of NGC 188. At 7 Gyr the main-sequence solar-type hard-binary population in the model matches that of NGC 188 in both binary frequency and distributions of orbital parameters. This agreement between the model and observations is in a large part due to the similarities between the NGC 188 and M35 solar-type binaries. Indeed, among the 7 Gyr main-sequence binaries in the model, only those with P {approx}> 1000 days begin to show potentially observable evidence for modifications by dynamical encounters, even after 7 Gyr of evolution within the star cluster. This emphasizes the importance of defining accurate initial conditions for star cluster models, which we propose is best accomplished through comparisons with observations of young open clusters like M35. Furthermore, this finding suggests that observations of the present-day binaries in even old open clusters can provide valuable information on their primordial binary populations. However, despite the model's success at matching the observed solar-type main-sequence population, the model underproduces blue stragglers and produces an overabundance of long-period circular main-sequence-white-dwarf binaries as compared with the true cluster. We explore several potential solutions to the paucity of blue stragglers and conclude that the model dramatically underproduces blue stragglers through mass-transfer processes. We suggest that common-envelope evolution may have been incorrectly imposed on the progenitors of the spurious long-period circular main-sequence-white-dwarf binaries, which perhaps instead should have gone through stable mass transfer to create blue stragglers, thereby bringing both the number and binary frequency of the blue straggler population in the model into agreement with the true blue stragglers in NGC 188. Thus, improvements in the physics of mass transfer and common-envelope evolution employed in the model may in fact solve both discrepancies with the observations. This project highlights the unique accessibility of open clusters to both comprehensive observational surveys and full-scale N-body simulations, both of which have only recently matured sufficiently to enable such a project, and underscores the importance of open clusters to the study of star cluster dynamics.

Geller, Aaron M. [Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (United States); Hurley, Jarrod R. [Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, VIC 3122 (Australia); Mathieu, Robert D., E-mail: a-geller@northwestern.edu, E-mail: mathieu@astro.wisc.edu, E-mail: jhurley@astro.swin.edu.au [Department of Astronomy, University of Wisconsin-Madison, Madison, WI 53706 (United States)

2013-01-01T23:59:59.000Z

74

Detailed modeling and laser-induced fluorescence imaging of nitric oxide in a NH(i)-seeded non-premixed methane/air flame  

SciTech Connect (OSTI)

In this paper we study the formation of NO in laminar, nitrogen diluted methane diffusion flames that are seeded with ammonia in the fuel stream. We have performed numerical simulations with detailed chemistry as well as laser-induced fluorescence imaging measurements for a range of ammonia injection rates. For comparison with the experimental data, synthetic LIF images are calculated based on the numerical data accounting for temperature and fluorescence quenching effects. We demonstrate good agreement between measurements and computations. The LIF corrections inferred from the simulation are then used to calculate absolute NO mole fractions from the measured signal.The NO formation in both doped and undoped flames occurs in the flame sheet. In the undoped flame, four different mechanisms including thermal and prompt NO appear to contribute to NO formation. As the NH3 seeding level increases, fuel-NO becomes the dominant mechanism and N2 shifts from being a net reactant to being a net product. Nitric oxide in the undoped flame as well as in the core region of the doped flames are underpredicted by the model; we attribute this mainly to inaccuracies in the NO recycling chemistry on the fuel-rich side of the flame sheet.

Bell, John B.; Day, Marcus S.; Grcar, Joseph F.; Bessler, Wolfgang G.; Schulz, Christof; Glarborg, Peter; Jensen, Anker D.

2001-12-14T23:59:59.000Z

75

Attention to Detail | EMSL  

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 Depth (AOD)ProductssondeadjustsondeadjustAboutScience Program Cumulus Humilis Aerosol STATEMENTAttention to Detail

76

High-energy radiation damage in zirconia: modeling results  

SciTech Connect (OSTI)

Zirconia is viewed as a material of exceptional resistance to amorphization by radiation damage, and consequently proposed as a candidate to immobilize nuclear waste and serve as an inert nuclear fuel matrix. Here, we perform molecular dynamics simulations of radiation damage in zirconia in the range of 0.1-0.5 MeV energies with account of electronic energy losses. We nd that the lack of amorphizability co-exists with a large number of point defects and their clusters. These, importantly, are largely isolated from each other and therefore represent a dilute damage that does not result in the loss of long-range structural coherence and amorphization. We document the nature of these defects in detail, including their sizes, distribution and morphology, and discuss practical implications of using zirconia in intense radiation environments.

Zarkadoula, Evangelia [Queen Mary, University of London] [Queen Mary, University of London; Devanathan, Ram [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL); Weber, William J [ORNL] [ORNL; Seaton, M [Daresbury Laboratory, UK] [Daresbury Laboratory, UK; Todorov, I T [Daresbury Laboratory, UK] [Daresbury Laboratory, UK; Nordlund, Kai [University of Helsinki] [University of Helsinki; Dove, Martin T [Queen Mary, University of London] [Queen Mary, University of London; Trachenko, Kostya [Queen Mary, University of London] [Queen Mary, University of London

2014-01-01T23:59:59.000Z

77

1992 CBECS Detailed Tables  

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

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) " ,"ClickPipelinesProved Reserves (Billion Cubic Feet)WyomingSquare Feet 50,001.6.A.0.EastDetailed

78

Melt coolability modeling and comparison to MACE test results  

SciTech Connect (OSTI)

An important question in the assessment of severe accidents in light water nuclear reactors is the ability of water to quench a molten corium-concrete interaction and thereby terminate the accident progression. As part of the Melt Attack and Coolability Experiment (MACE) Program, phenomenological models of the corium quenching process are under development. The modeling approach considers both bulk cooldown and crust-limited heat transfer regimes, as well as criteria for the pool thermal hydraulic conditions which separate the two regimes. The model is then compared with results of the MACE experiments.

Farmer, M.T.; Sienicki, J.J.; Spencer, B.W.

1992-04-01T23:59:59.000Z

79

Melt coolability modeling and comparison to MACE test results  

SciTech Connect (OSTI)

An important question in the assessment of severe accidents in light water nuclear reactors is the ability of water to quench a molten corium-concrete interaction and thereby terminate the accident progression. As part of the Melt Attack and Coolability Experiment (MACE) Program, phenomenological models of the corium quenching process are under development. The modeling approach considers both bulk cooldown and crust-limited heat transfer regimes, as well as criteria for the pool thermal hydraulic conditions which separate the two regimes. The model is then compared with results of the MACE experiments.

Farmer, M.T.; Sienicki, J.J.; Spencer, B.W.

1992-01-01T23:59:59.000Z

80

Simulating flame lift-off characteristics of diesel and biodiesel fuels using detailed chemical-kinetic mechanisms and LES turbulence model.  

SciTech Connect (OSTI)

Combustion in direct-injection diesel engines occurs in a lifted, turbulent diffusion flame mode. Numerous studies indicate that the combustion and emissions in such engines are strongly influenced by the lifted flame characteristics, which are in turn determined by fuel and air mixing in the upstream region of the lifted flame, and consequently by the liquid breakup and spray development processes. From a numerical standpoint, these spray combustion processes depend heavily on the choice of underlying spray, combustion, and turbulence models. The present numerical study investigates the influence of different chemical kinetic mechanisms for diesel and biodiesel fuels, as well as Reynolds-averaged Navier-Stokes (RANS) and large eddy simulation (LES) turbulence models on predicting flame lift-off lengths (LOLs) and ignition delays. Specifically, two chemical kinetic mechanisms for n-heptane (NHPT) and three for biodiesel surrogates are investigated. In addition, the RNG k-{epsilon} (RANS) model is compared to the Smagorinsky based LES turbulence model. Using adaptive grid resolution, minimum grid sizes of 250 {micro}m and 125 {micro}m were obtained for the RANS and LES cases respectively. Validations of these models were performed against experimental data from Sandia National Laboratories in a constant volume combustion chamber. Ignition delay and flame lift-off validations were performed at different ambient temperature conditions. The LES model predicts lower ignition delays and qualitatively better flame structures compared to the RNG k-{epsilon} model. The use of realistic chemistry and a ternary surrogate mixture, which consists of methyl decanoate, methyl 9-decenoate, and NHPT, results in better predicted LOLs and ignition delays. For diesel fuel though, only marginal improvements are observed by using larger size mechanisms. However, these improved predictions come at a significant increase in computational cost.

Som, S; Longman, D. E.; Luo, Z; Plomer, M; Lu, T; Senecal, P.K.; Pomraning, E (Energy Systems); (Univ. of Connecticut); (CONVERGENT Science)

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" 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

Position Summary Employee Details  

E-Print Network [OSTI]

services for faculty and staff. Catalogue and compile assessment resource materials and results and make readily available to faculty and staff by contributing to an assessment resources website; provide STUDIES - 061003 Position: DIRECTOR OF ACADEMIC ASSESSMENT, STUDENT LEARNING ASSESSMENT HEERA

California at Davis, University of

82

Detailed residential electric determination  

SciTech Connect (OSTI)

Data on residential loads has been collected from four residences in real time. The data, measured at 5-second intervals for 53 days of continuous operation, were statistically characterized. An algorithm was developed and incorporated into the modeling code SOLCEL. Performance simulations with SOLCEL using these data as well as previous data collected over longer time intervals indicate that no significant errors in system value are introduced through the use of long-term average data.

Not Available

1984-06-01T23:59:59.000Z

83

Comparison of Blade-Strike Modeling Results with Empirical Data  

SciTech Connect (OSTI)

This study is the initial stage of further investigation into the dynamics of injury to fish during passage through a turbine runner. As part of the study, Pacific Northwest National Laboratory (PNNL) estimated the probability of blade strike, and associated injury, as a function of fish length and turbine operating geometry at two adjacent turbines in Powerhouse 1 of Bonneville Dam. Units 5 and 6 had identical intakes, stay vanes, wicket gates, and draft tubes, but Unit 6 had a new runner and curved discharge ring to minimize gaps between the runner hub and blades and between the blade tips and discharge ring. We used a mathematical model to predict blade strike associated with two Kaplan turbines and compared results with empirical data from biological tests conducted in 1999 and 2000. Blade-strike models take into consideration the geometry of the turbine blades and discharges as well as fish length, orientation, and distribution along the runner.

Carlson, Thomas J.; Ploskey, Gene R.

2004-05-06T23:59:59.000Z

84

MODELING RESULTS FROM CESIUM ION EXCHANGE PROCESSING WITH SPHERICAL RESINS  

SciTech Connect (OSTI)

Ion exchange modeling was conducted at the Savannah River National Laboratory to compare the performance of two organic resins in support of Small Column Ion Exchange (SCIX). In-tank ion exchange (IX) columns are being considered for cesium removal at Hanford and the Savannah River Site (SRS). The spherical forms of resorcinol formaldehyde ion exchange resin (sRF) as well as a hypothetical spherical SuperLig{reg_sign} 644 (SL644) are evaluated for decontamination of dissolved saltcake wastes (supernates). Both SuperLig{reg_sign} and resorcinol formaldehyde resin beds can exhibit hydraulic problems in their granular (nonspherical) forms. SRS waste is generally lower in potassium and organic components than Hanford waste. Using VERSE-LC Version 7.8 along with the cesium Freundlich/Langmuir isotherms to simulate the waste decontamination in ion exchange columns, spherical SL644 was found to reduce column cycling by 50% for high-potassium supernates, but sRF performed equally well for the lowest-potassium feeds. Reduced cycling results in reduction of nitric acid (resin elution) and sodium addition (resin regeneration), therefore, significantly reducing life-cycle operational costs. These findings motivate the development of a spherical form of SL644. This work demonstrates the versatility of the ion exchange modeling to study the effects of resin characteristics on processing cycles, rates, and cold chemical consumption. The value of a resin with increased selectivity for cesium over potassium can be assessed for further development.

Nash, C.; Hang, T.; Aleman, S.

2011-01-03T23:59:59.000Z

85

Summary Results for Brine Migration Modeling Performed by LANL...  

Office of Environmental Management (EM)

BrineMigrationModeling More Documents & Publications Coupled Model for Heat and Water Transport in a High Level Waste Repository in Salt Establishing the Technical Basis for...

86

Results of the 2013 UT modeling benchmark obtained with models implemented in CIVA  

SciTech Connect (OSTI)

The 2013 Ultrasonic Testing (UT) modeling benchmark concerns direct echoes from side drilled holes (SDH), flat bottom holes (FBH) and corner echoes from backwall breaking artificial notches inspected with a matrix phased array probe. This communication presents the results obtained with the models implemented in the CIVA software: the pencilmodel is used to compute the field radiated by the probe, the Kirchhoff approximation is applied to predict the response of FBH and notches and the SOV (Separation Of Variables) model is used for the SDH responses. The comparison between simulated and experimental results are presented and discussed.

Toullelan, Gwénaël; Raillon, Raphaële; Chatillon, Sylvain [CEA, LIST, 91191Gif-sur-Yvette (France); Lonne, Sébastien [EXTENDE, Le Bergson, 15 Avenue Emile Baudot, 91300 MASSY (France)

2014-02-18T23:59:59.000Z

87

Results of EPRI/ANL DCH investigations and model development  

SciTech Connect (OSTI)

The results of a series of five experiments are described addressing the severity and mitigation of direct containment heating. The tests were performed in a 1:30 linear scale mockup of the Zion PWR containment system using a reactor-material corium melt consisting of 60% UO/sub 2/, 16% ZrO/sub 2/, 24% SSt at nominally 2800C initial temperature. A ''worst-case'' type test involving unimpeded corium dispersal through an air atmosphere in a closed vessel produced an atmosphere heatup of 323K, equivalent to a DCH efficiency of 62%. With the addition of structural features which impeded the corium dispersal, representative of dispersal pathway features at Zion, the DCH efficiency was reduced to 1--5%. (This important result is scale dependent and requires larger scale tests such as the SURTSEY program at SNL plus mechanistic modeling for application to the reactor system.) With the addition of water in the cavity region, there was no measurable heatup of the atmosphere. This was attributable to the vigorous codispersal of water with corium which prevented the temperature of the atmosphere from significantly exceeding T/sub sat/. In this case the DCH load was replaced by the more benign ''steam spike'' from corium quench. Significant oxidation of the corium constituents occurred in the tests, adding chemical energy to the system and producing hydrogen. Overall, the results suggest that with consideration of realistic, plant specific, mitigating features, DCH may be no worse and possibly far less severe than the previously examined steam spike. Implications for accident management are addressed. 17 refs., 7 figs., 4 tabs.

Spencer, B.W.; Sienicki, J.J.; Sehgal, B.R.; Merilo, M.

1988-01-01T23:59:59.000Z

88

Exact results for ionization of model atomic systems  

SciTech Connect (OSTI)

We review recent rigorous results concerning the ionization of model quantum systems by time-periodic external fields. The systems we consider consist of a single particle (electron) with a reference Hamiltonian H{sub 0}=-{delta}+V{sub 0}(x) (x is an element of R{sup d}) having both bound and continuum states. Starting from an initially localized state {psi}{sub 0}(x) is an element of L{sup 2}(R{sup d}), the system is subjected for t{>=}0 to an arbitrary strength time-periodic potential V{sub 1}(x,t)=V{sub 1}(x,t+2{pi}/{omega}). We prove that for a large class of V{sub 0}(x) and V{sub 1}(x,t), the wave function {psi}(x,t) will delocalize as t{yields}{infinity}, i.e., the system will ionize. The only exceptions are cases where there are time-periodic bound states of the Floquet operator associated with H{sub 0}+V{sub 1}. These do occur (albeit rarely) when V{sub 1} is not small. For spatially rapidly decaying V{sub 0} and V{sub 1}, {psi}(x,t) is generally given, for very long times, by a power series in t{sup -1/2} which we prove in some cases to be Borel summable. For the Coulomb potential V{sub 0}(x)=-b|x|{sup -1} in R{sup 3}, we prove ionization for V{sub 1}(x,t)=V{sub 1}(|x|)sin({omega}t-{theta}), V{sub 1}(|x|)=0 for |x|>R and V{sub 1}(x)>0 for |x|{<=}R. For this model, if {psi}{sub 0} is compactly supported both in x and in angular momentum, L, we obtain that {psi}(x,t){approx}O(t{sup -5/6}) as t{yields}{infinity}.

Costin, O.; Tanveer, S. [Department of Mathematics, Ohio State University, Columbus, Ohio 43210 (United States); Lebowitz, J. L. [Department of Mathematics, Rutgers University, Piscataway, New Jersey 08854 (United States); Department of Physics, Rutgers University, Piscataway, New Jersey 08854 (United States); Stucchio, C. [Courant Institute, New York University, New York, New York 10276 (United States)

2010-01-15T23:59:59.000Z

89

Computed tomography:the details.  

SciTech Connect (OSTI)

Computed Tomography (CT) is a well established technique, particularly in medical imaging, but also applied in Synthetic Aperture Radar (SAR) imaging. Basic CT imaging via back-projection is treated in many texts, but often with insufficient detail to appreciate subtleties such as the role of non-uniform sampling densities. Herein are given some details often neglected in many texts.

Doerry, Armin Walter

2007-07-01T23:59:59.000Z

90

Results from modeling and simulation of chemical downstream etch systems  

SciTech Connect (OSTI)

This report summarizes modeling work performed at Sandia in support of Chemical Downstream Etch (CDE) benchmark and tool development programs under a Cooperative Research and Development Agreement (CRADA) with SEMATECH. The Chemical Downstream Etch (CDE) Modeling Project supports SEMATECH Joint Development Projects (JDPs) with Matrix Integrated Systems, Applied Materials, and Astex Corporation in the development of new CDE reactors for wafer cleaning and stripping processes. These dry-etch reactors replace wet-etch steps in microelectronics fabrication, enabling compatibility with other process steps and reducing the use of hazardous chemicals. Models were developed at Sandia to simulate the gas flow, chemistry and transport in CDE reactors. These models address the essential components of the CDE system: a microwave source, a transport tube, a showerhead/gas inlet, and a downstream etch chamber. The models have been used in tandem to determine the evolution of reactive species throughout the system, and to make recommendations for process and tool optimization. A significant part of this task has been in the assembly of a reasonable set of chemical rate constants and species data necessary for successful use of the models. Often the kinetic parameters were uncertain or unknown. For this reason, a significant effort was placed on model validation to obtain industry confidence in the model predictions. Data for model validation were obtained from the Sandia Molecular Beam Mass Spectrometry (MBMS) experiments, from the literature, from the CDE Benchmark Project (also part of the Sandia/SEMATECH CRADA), and from the JDP partners. The validated models were used to evaluate process behavior as a function of microwave-source operating parameters, transport-tube geometry, system pressure, and downstream chamber geometry. In addition, quantitative correlations were developed between CDE tool performance and operation set points.

Meeks, E.; Vosen, S.R.; Shon, J.W.; Larson, R.S.; Fox, C.A.; Buchenauer

1996-05-01T23:59:59.000Z

91

A dark energy model resulting from a Ricci symmetry revisited  

E-Print Network [OSTI]

Observations of supernovae of type Ia require dark energy (some unknown exotic \\emph{`matter'} of negative pressure) to explain their unexpected faintness. Whereas the simplest and most favoured candidate of dark energy, the Einsteinian cosmological constant, is about 120 orders of magnitude smaller than the theoretically predicted value. Motivated by this problem, a number of models of dynamically decaying dark energy have been proposed by considering different phenomenological laws or potentials of the scalar field, which are more or less ad-hoc. However, it is more advisable to consider the symmetry properties of spacetime rather than the ad-hoc assumptions. In this view, we consider a model of Robertson-Walker cosmology emerging from a Ricci symmetry which provides consistently an evolving dark energy. We test the model for the recent supernovae Ia data, as well as, the ultracompact radio sources data compiled by Jackson and Dodgson. The model fits the data very well.

R. G. Vishwakarma

2008-01-18T23:59:59.000Z

92

Case Studies Comparing System Advisor Model (SAM) Results to Real Performance Data: Preprint  

SciTech Connect (OSTI)

NREL has completed a series of detailed case studies comparing the simulations of the System Advisor Model (SAM) and measured performance data or published performance expectations. These case studies compare PV measured performance data with simulated performance data using appropriate weather data. The measured data sets were primarily taken from NREL onsite PV systems and weather monitoring stations.

Blair, N.; Dobos, A.; Sather, N.

2012-06-01T23:59:59.000Z

93

PHEV Parcel Delivery Truck Model - Development and Preliminary Results (Presentation)  

SciTech Connect (OSTI)

Describes results of a study to determine the impact of drive cycles on the energy- and cost-effectiveness of plug-in hybrid electric delivery vans.

Barnitt, R

2009-10-28T23:59:59.000Z

94

Results from Development of Model Specifications for Multifamily Energy Retrofits  

SciTech Connect (OSTI)

Specifications, modeled after CSI MasterFormat, provide the trade contractors and builders with requirements and recommendations on specific building materials, components and industry practices that comply with the expectations and intent of the requirements within the various funding programs associated with a project. The goal is to create a greater level of consistency in execution of energy efficiency retrofits measures across the multiple regions a developer may work. IBACOS and Mercy Housing developed sample model specifications based on a common building construction type that Mercy Housing encounters.

Brozyna, K.

2012-08-01T23:59:59.000Z

95

UoS Motor Accident Report Form COMPANY DETAILS  

E-Print Network [OSTI]

UNIV01FL02 UoS Motor Accident Report Form COMPANY DETAILS INSURED: University of Sussex ADDRESS: LOCATION: DESCRIPTION OF HOW ACCIDENT HAPPENED: PLEASE DRAW A SKETCH OF THE ACCIDENT: #12;DRIVER DETAILS: PREVIOUS ACCIDENTS: ADDRESS: VEHICLE DETAILS DATE VEHICLE PURCHASED: MAKE/MODEL: REGISTRATION: MILEAGE

Sussex, University of

96

E-Print Network 3.0 - anisotropic fsi models Sample Search Results  

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

search results for: anisotropic fsi models Page: << < 1 2 3 4 5 > >> 1 2010 -2011 MATHEMATICS COLLOQUIUM SERIES Summary: on Multi-Layer Anisotropic Models for Pulmonary Valve...

97

E-Print Network 3.0 - active fracture model Sample Search Results  

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

fracture model Search Powered by Explorit Topic List Advanced Search Sample search results for: active fracture model Page: << < 1 2 3 4 5 > >> 1 THELEADINGEDGESeptember2007Vol.26,...

98

Electromagnetic scattering from grassland Part II: Measurement and modeling results  

E-Print Network [OSTI]

-InvestigatoronmanyprojectssponsoredbyNASA,JPL,ARO,ONR,ARL, and GM all related in one way or the other to microwave and millimeter wave radar remote sensing. He has published many book chapters and more than 80 papers in refereed journals on electromagnetic scattering, random media modeling, microwave measurement...LecturerAwardfromtheGerman Federal Ministry for Education, Science, and Technology. FawwazT.Ulaby(M’68–SM’74–F’80)receivedthe B.S.degreeinphysicsfromtheAmericanUniversity of Beirut, Lebanon, in 1964, and the M.S.E.E. and Ph.D.degreesinelectricalengineeringfromtheUni- versity...

Stiles, James Marion; Ulaby, F. T.; Sarabandi, K.

2000-01-01T23:59:59.000Z

99

H2A Delivery Models and Results | 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 Source Heat2Guidelines forResearchModels and

100

HIGH DETAIL STATIONARY OPTIMIZATION MODELS FOR GAS ...  

E-Print Network [OSTI]

the coefficients of isobaric molar heat capacity A, B, C) consist of four ..... Had (kJ kg?1), required compressor power P (MW) and compressor outflow tem-.

2014-11-26T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" 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

Experimental results and modeling of a dynamic hohlraum on SATURN  

SciTech Connect (OSTI)

Experiments were performed at SATURN, a high current z-pinch, to explore the feasibility of creating a hohlraum by imploding a tungsten wire array onto a low-density foam. Emission measurements in the 200--280 eV energy band were consistent with a 110--135 eV Planckian before the target shock heated, or stagnated, on-axis. Peak pinch radiation temperatures of nominally 160 eV were obtained. Measured early time x-ray emission histories and temperature estimates agree well with modeled performance in the 200--280 eV band using a 2D radiation magneto-hydrodynamics code. However, significant differences are observed in comparisons of the x-ray images and 2D simulations.

Derzon, M.S.; Allshouse, G.O.; Deeney, C.; Leeper, R.J.; Nash, T.J. [Sandia National Labs., Albuquerque, NM (United States); Matuska, W.; Peterson, D.L. [Los Alamos National Lab., NM (United States); MacFarlane, J.J. [Univ. of Wisconsin, Madison, WI (United States); Ryutov, D.D. [Lawrence Livermore National Lab., CA (United States)

1998-06-01T23:59:59.000Z

102

Description of Axial Detail for ROK Fuel  

SciTech Connect (OSTI)

For the purpose of NDA simulations of the ROK fuel assemblies, we have developed an axial burnup distribution to represent the pins themselves based on gamma scans of rods in the G23 assembly. For the purpose of modeling the G23 assembly (both at ORNL and LANL), the pin-by-pin burnup map as simulated by ROK is being assumed to represent the radial burnup distribution. However, both DA and NDA results indicate that this simulated estimate is not 100% correct. In particular, the burnup obtained from the axial gamma scan of 7 pins does not represent exactly the same 'average' pin burnup as the ROK simulation. Correction for this discrepancy is a goal of the well-characterized assembly task but will take time. For now, I have come up with a correlation for 26 axial points of the burnup as obtained by gamma scans of 7 different rods (C13, G01, G02, J11, K10, L02, and M04, neglecting K02 at this time) to the average burnup given by the simulation for each of the rods individually. The resulting fraction in each axial zone is then averaged for the 7 different rods so that it can represent every fuel pin in the assembly. The burnup in each of the 26 axial zones of rods in all ROK assemblies will then be directly adjusted using this fraction, which is given in Table 1. Note that the gamma scan data given by ROK for assembly G23 included a length of {approx}3686 mm, so the first 12 mm and the last 14 mm were ignored to give an actual rod length of {approx}366 cm. To represent assembly F02 in which no pin-by-pin burnup distribution is given by ROK, we must model it using infinitely-reflected geometry but can look at the effects of measuring in different axial zones by using intermediate burnup files (i.e. smaller burnups than 28 GWd/MTU) and determining which axial zone(s) each burnup represents. Details for assembly F02 are then given in Tables 2 and 3, which is given in Table 1 and has 44 total axial zones to represent the top meter in explicit detail in addition to the other 26 zones. Note that the MCNP files for F02 were created using the Monte Carlo burnup linkage code Monteburns, which saves MCNP input files with detailed compositions as a function of burnup. The 'intermediate burnup files' produced for F02 include a cooling time of 27 years. The axial location of 5 spacers was also included in the ROK F02 assembly in which each spacer contained a length of 3.81 cm. Note that due to the nature of Monteburns, which was run in a special fashion for this problem, the step number increments after the 27 year decay, so the second column of Table 2 refers to the step number that should be used in the Monteburns files.

Trellue, Holly R [Los Alamos National Laboratory; Galloway, Jack D [Los Alamos National Laboratory

2012-04-20T23:59:59.000Z

103

Cooperative Education Detailed Operational Procedures  

E-Print Network [OSTI]

credits of Cooperative education for one of the required elective courses in the ME programME 3990 Cooperative Education Detailed Operational Procedures Overview Cooperative education and Aeronautical Engineering faculty. Cooperative education is not a required component of the ME program

de Doncker, Elise

104

Detailed chemical kinetic oxidation mechanism for a biodiesel surrogate  

SciTech Connect (OSTI)

A detailed chemical kinetic mechanism has been developed and used to study the oxidation of methyl decanoate, a surrogate for biodiesel fuels. This model has been built by following the rules established by Curran et al. for the oxidation of n-heptane and it includes all the reactions known to be pertinent to both low and high temperatures. Computed results have been compared with methyl decanoate experiments in an engine and oxidation of rapeseed oil methyl esters in a jet stirred reactor. An important feature of this mechanism is its ability to reproduce the early formation of carbon dioxide that is unique to biofuels and due to the presence of the ester group in the reactant. The model also predicts ignition delay times and OH profiles very close to observed values in shock tube experiments fueled by n-decane. These model capabilities indicate that large n-alkanes can be good surrogates for large methyl esters and biodiesel fuels to predict overall reactivity, but some kinetic details, including early CO{sub 2} production from biodiesel fuels, can be predicted only by a detailed kinetic mechanism for a true methyl ester fuel. The present methyl decanoate mechanism provides a realistic kinetic tool for simulation of biodiesel fuels.

Herbinet, O; Pitz, W J; Westbrook, C K

2007-09-20T23:59:59.000Z

105

Detailed chemical kinetic oxidation mechanism for a biodiesel surrogate  

SciTech Connect (OSTI)

A detailed chemical kinetic mechanism has been developed and used to study the oxidation of methyl decanoate, a surrogate for biodiesel fuels. This model has been built by following the rules established by Curran et al. for the oxidation of n-heptane and it includes all the reactions known to be pertinent to both low and high temperatures. Computed results have been compared with methyl decanoate experiments in an engine and oxidation of rapeseed oil methyl esters in a jet stirred reactor. An important feature of this mechanism is its ability to reproduce the early formation of carbon dioxide that is unique to biofuels and due to the presence of the ester group in the reactant. The model also predicts ignition delay times and OH profiles very close to observed values in shock tube experiments fueled by n-decane. These model capabilities indicate that large n-alkanes can be good surrogates for large methyl esters and biodiesel fuels to predict overall reactivity, but some kinetic details, including early CO2 production from biodiesel fuels, can be predicted only by a detailed kinetic mechanism for a true methyl ester fuel. The present methyl decanoate mechanism provides a realistic kinetic tool for simulation of biodiesel fuels.

Herbinet, O; Pitz, W J; Westbrook, C K

2007-09-17T23:59:59.000Z

106

Detailed chemical kinetic oxidation mechanism for a biodiesel surrogate  

SciTech Connect (OSTI)

A detailed chemical kinetic mechanism has been developed and used to study the oxidation of methyl decanoate, a surrogate for biodiesel fuels. This model has been built by following the rules established by Curran and co-workers for the oxidation of n-heptane and it includes all the reactions known to be pertinent to both low and high temperatures. Computed results have been compared with methyl decanoate experiments in an engine and oxidation of rapeseed oil methyl esters in a jet-stirred reactor. An important feature of this mechanism is its ability to reproduce the early formation of carbon dioxide that is unique to biofuels and due to the presence of the ester group in the reactant. The model also predicts ignition delay times and OH profiles very close to observed values in shock tube experiments fueled by n-decane. These model capabilities indicate that large n-alkanes can be good surrogates for large methyl esters and biodiesel fuels to predict overall reactivity, but some kinetic details, including early CO{sub 2} production from biodiesel fuels, can be predicted only by a detailed kinetic mechanism for a true methyl ester fuel. The present methyl decanoate mechanism provides a realistic kinetic tool for simulation of biodiesel fuels. (author)

Herbinet, Olivier; Pitz, William J.; Westbrook, Charles K. [Lawrence Livermore National Laboratory, Livermore, CA 94550 (United States)

2008-08-15T23:59:59.000Z

107

Preliminary results of a dynamic system model for a closed-loop Brayton cycle coupled to a nuclear reactor.  

SciTech Connect (OSTI)

This paper describes preliminary results of a dynamic system model for a closed-loop Brayton-cycle that is coupled to a nuclear reactor. The current model assumes direct coupling between the reactor and the Brayton-cycle, however only minor additions are required to couple the Brayton-cycle through a heat exchanger to either a heat pipe reactor or a liquid metal cooled reactor. Few reactors have ever been coupled to closed Brayton-cycle systems. As such their behavior under dynamically varying loads, startup and shut down conditions, and requirements for safe and autonomous operation are largely unknown. Sandia National Laboratories has developed steady-state and dynamic models for closed-loop turbo-compressor systems (for space and terrestrial applications). These models are expected to provide a basic understanding of the dynamic behavior and stability of the coupled reactor and power generation loop. The model described in this paper is a lumped parameter model of the reactor, turbine, compressor, recuperator, radiator/waste-heat-rejection system and generator. More detailed models that remove the lumped parameter simplifications are also being developed but are not presented here. The initial results of the model indicate stable operation of the reactor-driven Brayton-cycle system and its ability to load-follow. However, the model also indicates some counter-intuitive behavior for the complete coupled system. This behavior will require the use of a reactor control system to select an appropriate reactor operating temperature that will optimize the performance of the complete spacecraft system. We expect this model and subsequent versions of it to provide crucial information in developing procedures for safe start up, shut down, safe-standby, and other autonomous operating modes. Ultimately, Sandia hopes to validate these models and to perform nuclear ground tests of reactor-driven closed Brayton-cycle systems in our nuclear research facilities.

Wright, Steven Alan

2003-06-01T23:59:59.000Z

108

Transport-theoretic model for the electron-proton-hydrogen atom auroa. II. Model results  

SciTech Connect (OSTI)

In a companion paper, a self-consistent transport-theoretic model for the combined electron-proton-hydrogen atom aurora was described. In this paper, numberical results based on the model are presented. This is done for the pure electron aurora, the pure proton-hydrogen atom aurora, and finally for the combined aurora. Adopting commonly used types of energy distributions for the incident particle (electron and proton) fluxes, the authors give numerical solutions for the precipitating electron, proton, and hydrogen atom differential number fluxes. Results are also given for ionization yields and emission yields of the following features: N{sub 2}{sup +} first negative group (3914 {Angstrom}), N{sub 2} second positive group (3371 {Angstrom}), selected N{sub 2} Lyman-Birge-Hopfields bands (1325, 1354, 1383, 1493, and all bands between 1700 and 1800 {Angstrom}), O I (1356 {Angstrom}), L{sub {alpha}} (1216 {Angstrom}), H{sub {beta}} (4861 {Angstrom}), and H{sub {alpha}} (6563 {Angstrom}). The yield at 1493 {Angstrom} also contains a contribution from N I (1493 {Angstrom}), which in fact dominates LBH emission. A major new result of this study is that the secondary electron flux produced by the proton-hydrogen atom aurora is much softer than that produced by the electron aurora. This increased softness is due to the fact that (for energies of aurora interest) cross sections for secondary electron flux produced by the proton-hydrogen atom aurora is much softer than that produced by the electron aurora. This increased softness is due to the fact that (for energies of auroral interest) cross sections for secondary electron production by proton and hydrogen atom impact decrease exponentially with increasing secondary electron energy, whereas the cross sections for electron impact decrease as an inverse power law with increasing secondary energy.

Strickland, D.J. [Computational Physics, Inc., Fairfax, VA (United States); Daniell, R.E. Jr. [Computational Physics, Inc., Newton, MA (United States); Basu, B. [Hanscom Air Force Base, MA (United States)] [and others

1993-12-01T23:59:59.000Z

109

E-Print Network 3.0 - als animal models Sample Search Results  

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

Sample search results for: als animal models Page: << < 1 2 3 4 5 > >> 1 Planning Computer Modeled Animation: Towards an Animation Machine ADAILTON JOS E ALVES DA CRUZ ALBERTO...

110

E-Print Network 3.0 - alpha model complex Sample Search Results  

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

model complex Search Powered by Explorit Topic List Advanced Search Sample search results for: alpha model complex Page: << < 1 2 3 4 5 > >> 1 BRST Quantization of String Theories...

111

Assessing the Potential of Using Traffic Simulation Model Results for Evaluating Automatic Incident Detection Algorithms  

E-Print Network [OSTI]

Assessing the Potential of Using Traffic Simulation Model Results for Evaluating Automatic Incident of such a test-bed would be the ability to incorporate synthetic data produced by a simulation model since

Hellinga, Bruce

112

E-Print Network 3.0 - architecture dama model Sample Search Results  

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

Search Powered by Explorit Topic List Advanced Search Sample search results for: architecture dama model Page: << < 1 2 3 4 5 > >> 1 Multiprocessor Architectures Specialized for...

113

Effect of Blade Torsion on Modeling Results for the Small Wind Research Turbine (SWRT): Preprint  

SciTech Connect (OSTI)

This paper summarizes modeling results from both the FAST and ADAMS aeroelastic simulators characterizing small wind turbine loads and dynamic behavior.

Corbus, D.; Hansen, A. C.; Minnema, J.

2006-01-01T23:59:59.000Z

114

Final Detailed Measurement Program Plan Detailed Measurement Program Plan  

E-Print Network [OSTI]

by TrueWind Solutions, LLC Albany, New York for California Energy Commission Sacramento, California was developed by TrueWind Solutions, hereon referred to as TrueWind, to guide Task 4 of the Wind Energy Resource Modeling and Measurement Project, contact number 500-03-006, with the California Energy Commission

115

Crump Geyser: High Precision Geophysics & Detailed Structural...  

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

Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well...

116

Adult Football Helmet Detailed Ratings Riddell Revolution Speed  

E-Print Network [OSTI]

Adult Football Helmet Detailed Ratings May 2011 Riddell Revolution Speed Helmet ID SPEED1 SPEED2: A total of 10 adult football helmet models were evaluated using the STAR evaluation system for May 2011.397 0.350 0.322 Overall STAR 0.356 Very Good: Adult Football Helmet Detailed Ratings May 2011 #12

Lu, Chang

117

Detailed chemical kinetic oxidation mechanism for a biodiesel Olivier Herbineta  

E-Print Network [OSTI]

Detailed chemical kinetic oxidation mechanism for a biodiesel surrogate Olivier Herbineta , William of methyl decanoate, a surrogate for biodiesel fuels. This model has been built by following the rules and biodiesel fuels to predict overall reactivity, but some kinetic details, including early CO2 production from

Paris-Sud XI, Université de

118

Haptic Models of an Automotive Turn-Signal Switch: Identification and Playback Results  

E-Print Network [OSTI]

Haptic Models of an Automotive Turn-Signal Switch: Identification and Playback Results Mark B of virtual environments. This paper addresses the problem of modeling the feel of an automotive turn- signal would require accurate models of the primary automotive controls, including the steering wheel, gear

Hollerbach, John M.

119

Stratospheric ozone response to sulfate geoengineering: Results from the Geoengineering Model  

E-Print Network [OSTI]

Stratospheric ozone response to sulfate geoengineering: Results from the Geoengineering Model for Atmospheric Research, Boulder, Colorado, USA Abstract Geoengineering with stratospheric sulfate aerosols has the experiments G3 and G4 of the Geoengineering Model Intercomparison Project. On average, the models simulate

Robock, Alan

120

Capacitive effect of cavitation in xylem conduits: results from a dynamic model  

E-Print Network [OSTI]

Capacitive effect of cavitation in xylem conduits: results from a dynamic model TEEMU HÃ?LTTÃ?1. A dynamic model is presented that models xylem water potential, xylem sap flow and cavitation, taking; xylem transport. INTRODUCTION Xylem embolism formation by cavitation causes a decrease in plant

Mencuccini, Maurizio

Note: This page contains sample records for the topic "model results detailed" 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

JAMES ARTHUR ELLIOTT PERSONAL DETAILS  

E-Print Network [OSTI]

, and amorphous materials of relevance to the pharmaceutical industry. RG38352 Pfizer Institute for Pharmaceutical that can provide a stringent test of theoretical models. Pharmaceutical and medical materials science The essence of pharmaceutical materials science is the application of fundamental concepts in the physical

Elliott, James

122

Recent Results of the Hadron Resonance Gas Model and the Chemical Freeze-out of Strange Hadrons  

E-Print Network [OSTI]

A detailed discussion of recent results obtained within the hadron resonance gas model with the multi-component hard core repulsion is presented. Among them there are the adiabatic chemical freeze-out criterion, the concept of separate chemical freeze-out of strange particles and the effects of enhancement and sharpening of wide resonances and quark gluon bags occurring in a thermal medium. These findings are discussed in order to strengthen the planned heavy-ion collision experimental programs at low collision energies. We argue, that due to found effects, at the center of mass collision energy 4-8 GeV the quark gluon bags may appear directly or in decays as new heavy resonances with the narrow width of about 50-150 MeV and with the mass above 2.5 GeV.

Bugaev, K A; Oliinychenko, D R; Nikonov, E G; Sagun, V V; Zinovjev, G M

2014-01-01T23:59:59.000Z

123

Assessment of effectiveness of geologic isolation systems. Geologic-simulation model for a hypothetical site in the Columbia Plateau. Volume 2: results  

SciTech Connect (OSTI)

This report contains the input data and computer results for the Geologic Simulation Model. This model is described in detail in the following report: Petrie, G.M., et. al. 1981. Geologic Simulation Model for a Hypothetical Site in the Columbia Plateau, Pacific Northwest Laboratory, Richland, Washington. The Geologic Simulation Model is a quasi-deterministic process-response model which simulates, for a million years into the future, the development of the geologic and hydrologic systems of the ground-water basin containing the Pasco Basin. Effects of natural processes on the ground-water hydrologic system are modeled principally by rate equations. The combined effects and synergistic interactions of different processes are approximated by linear superposition of their effects during discrete time intervals in a stepwise-integration approach.

Foley, M.G.; Petrie, G.M.; Baldwin, A.J.; Craig, R.G.

1982-06-01T23:59:59.000Z

124

Cost Benefit Analysis Modeling Tool for Electric vs. ICE Airport Ground Support Equipment – Development and Results  

SciTech Connect (OSTI)

This report documents efforts to develop a computer tool for modeling the economic payback for comparative airport ground support equipment (GSE) that are propelled by either electric motors or gasoline and diesel engines. The types of GSE modeled are pushback tractors, baggage tractors, and belt loaders. The GSE modeling tool includes an emissions module that estimates the amount of tailpipe emissions saved by replacing internal combustion engine GSE with electric GSE. This report contains modeling assumptions, methodology, a user’s manual, and modeling results. The model was developed based on the operations of two airlines at four United States airports.

James Francfort; Kevin Morrow; Dimitri Hochard

2007-02-01T23:59:59.000Z

125

ISO-SWS calibration and the accurate modelling of cool-star atmospheres - II. General results  

E-Print Network [OSTI]

The fine calibration of the ISO-SWS detectors (Infrared Space Observatory - Short Wavelength Spectrometer) has proven to be a delicate problem. We therefore present a detailed spectroscopic study in the 2.38 -- 12 micron wavelength range of a sample of 16 A0 -- M2 stars used for the calibration of ISO-SWS. By investigating the discrepancies between the ISO-SWS data of these sources, the theoretical predictions of their spectra, the high-resolution FTS-KP (Kitt Peak) spectrum of Alpha Boo and the solar FTS-ATMOS (Atmospheric Trace Molecule Spectroscopy) spectrum, both calibration problems and problems in computing the theoretical models and the synthetic spectra are revealed. The underlying reasons for these problems are sought for and the impact on the further calibration of ISO-SWS and on the theoretical modelling is discussed extensively.

L. Decin; B. Vandenbussche; C. Waelkens; K. Eriksson; B. Gustafsson; B. Plez; A. J. Sauval; K. Hinkle

2002-07-29T23:59:59.000Z

126

Forced response of the East Asian summer rainfall over the past millennium: results from a coupled model simulation  

E-Print Network [OSTI]

of a millennium simulation of the coupled ECHO-G model. The model results indicate that the centennial

Wang, Bin

127

The Multi-Stage Investment Timing Game in Offshore Petroleum Production: Preliminary results from an econometric model  

E-Print Network [OSTI]

robustness checks from the econometric model coefficients inPreliminary results from an econometric model C. -Y.paper uses a structural econometric model to analyze the

Lin, C.-Y. Cynthia

2007-01-01T23:59:59.000Z

128

E-Print Network 3.0 - actin filament modeling Sample Search Results  

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

Sample search results for: actin filament modeling Page: << < 1 2 3 4 5 > >> 1 Current Biology 16, 19241930, October 10, 2006 2006 Elsevier Ltd All rights reserved DOI 10.1016...

129

E-Print Network 3.0 - ageing model podospora Sample Search Results  

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

Sample search results for: ageing model podospora Page: << < 1 2 3 4 5 > >> 1 Current Biology 21, 134139, January 25, 2011 2011 Elsevier Ltd All rights reserved DOI 10.1016...

130

E-Print Network 3.0 - allison model 12v-149t Sample Search Results  

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

Sample search results for: allison model 12v-149t Page: << < 1 2 3 4 5 > >> 1 CURRICULUM VITAE Mead A. Allison Summary: CURRICULUM VITAE Mead A. Allison Address: Institute for...

131

2D-Modelling of pellet injection in the poloidal plane: results of numerical tests  

E-Print Network [OSTI]

2D-Modelling of pellet injection in the poloidal plane: results of numerical tests P. Lalousis developed for computing the expansion of pellet-produced clouds in the poloidal plane. The expansion

Paris-Sud XI, Université de

132

Evaluation of Advanced Wind Power Forecasting Models Results of the Anemos Project  

E-Print Network [OSTI]

1 Evaluation of Advanced Wind Power Forecasting Models ­ Results of the Anemos Project I. Martí1.kariniotakis@ensmp.fr Abstract An outstanding question posed today by end-users like power system operators, wind power producers or traders is what performance can be expected by state-of-the-art wind power prediction models. This paper

Paris-Sud XI, Université de

133

Dynamic Friction Models for Longitudinal Road/Tire Interaction: Experimental Results  

E-Print Network [OSTI]

Dynamic Friction Models for Longitudinal Road/Tire Interaction: Experimental Results C. Canudas dynamic friction force model for the longitudinal road/tire interaction for wheeled ground vehicles is val- idated via experiments with an actual passenger vehicle. Contrary to common static friction/slip maps

Tsiotras, Panagiotis

134

TURBULENT COMBUSTION MODELING OF COAL:BIOMASS BLENDS IN A SWIRL BURNER I -PRELIMINARY RESULTS  

E-Print Network [OSTI]

fractions has been developed for accurate simulation of coal:manure combustion. This model treats coal and manure off gasses separately. This model has been incorporated into the PCGC-2(Pulverized Coal Gasification and Combustion - 2 Dimensional, from Brigham Young University) code. Numerical results

Daripa, Prabir

135

Combinatorial Algorithms for Protein Folding in Lattice Models: A Survey of Mathematical Results  

E-Print Network [OSTI]

Combinatorial Algorithms for Protein Folding in Lattice Models: A Survey of Mathematical Results a comprehensive survey of combinatorial algorithms and theorems about lattice protein folding models obtained in the almost 15 years since the publication in 1995 of the first protein folding approximation algorithm

Istrail, Sorin

136

Dynamic soil-structure interaction-comparison of FEM model with experimental results  

E-Print Network [OSTI]

Analysis of Results. . . . . . . Consistency of Results. 38 53 V FREQUENCY ANALYSIS. 54 Frequency Content of Base Excitation and Response. . . Eigen-Analysis of the FEM Results. Results From Using a Kgher Stiffness. , . . . 54 . 66 . 68 VI.... . . 29 3. 2 Table of Models and their Properties. . . 4. 1 Recommended Values of Young's Modulus (E) in N/m2. . . . . . . . . . . . . . . . . . . . . . . 5. 1 Dominant and Average Frequencies in Hertz for Each of the Parts of Each 45 of the Time...

Srinivasan, Palanivel Rajan

2000-01-01T23:59:59.000Z

137

Election Results and Opportunistic Policies: A New Test of the Rational Political Business Cycle Model  

E-Print Network [OSTI]

Election Results and Opportunistic Policies: A New Test of the Rational Political Business Cycle Model#3; Toke S. Aidtay Francisco José Veigab Linda Gonçalves Veigac aUniversity of Cambridge, Faculty of Economics, Sidgwick Avenue Cambridge, CB3 9DD... . These results are consistent with the theoretical model. Keywords: Voting and popularity functions, opportunism, rational political busi- ness cycles, local government, system estimation, Portugal. JEL codes: D72, E32, H72. #3;The authors acknowledge helpful...

Aidt, Toke S; Veiga, F J; Veiga, L G

138

Results and Comparison from the SAM Linear Fresnel Technology Performance Model: Preprint  

SciTech Connect (OSTI)

This paper presents the new Linear Fresnel technology performance model in NREL's System Advisor Model. The model predicts the financial and technical performance of direct-steam-generation Linear Fresnel power plants, and can be used to analyze a range of system configurations. This paper presents a brief discussion of the model formulation and motivation, and provides extensive discussion of the model performance and financial results. The Linear Fresnel technology is also compared to other concentrating solar power technologies in both qualitative and quantitative measures. The Linear Fresnel model - developed in conjunction with the Electric Power Research Institute - provides users with the ability to model a variety of solar field layouts, fossil backup configurations, thermal receiver designs, and steam generation conditions. This flexibility aims to encompass current market solutions for the DSG Linear Fresnel technology, which is seeing increasing exposure in fossil plant augmentation and stand-alone power generation applications.

Wagner, M. J.

2012-04-01T23:59:59.000Z

139

COMPUTATIONAL FLUID DYNAMICS MODELING OF SCALED HANFORD DOUBLE SHELL TANK MIXING - CFD MODELING SENSITIVITY STUDY RESULTS  

SciTech Connect (OSTI)

The primary purpose of the tank mixing and sampling demonstration program is to mitigate the technical risks associated with the ability of the Hanford tank farm delivery and celtification systems to measure and deliver a uniformly mixed high-level waste (HLW) feed to the Waste Treatment and Immobilization Plant (WTP) Uniform feed to the WTP is a requirement of 24590-WTP-ICD-MG-01-019, ICD-19 - Interface Control Document for Waste Feed, although the exact definition of uniform is evolving in this context. Computational Fluid Dynamics (CFD) modeling has been used to assist in evaluating scaleup issues, study operational parameters, and predict mixing performance at full-scale.

JACKSON VL

2011-08-31T23:59:59.000Z

140

Ancillary service details: Voltage control  

SciTech Connect (OSTI)

Voltage control is accomplished by managing reactive power on an alternating-current power system. Reactive power can be produced and absorbed by both generation and transmission equipment. Reactive-power devices differ substantially in the magnitude and speed of response and in their capital costs. System operators, transmission owners, generators, customers, power marketers, and government regulators need to pay close attention to voltage control as they restructure the U.S. electricity industry. Voltage control can affect reliability and commerce in three ways: (1) Voltages must be maintained within an acceptable range for both customer and power-system equipment to function properly. (2) The movement of reactive power consumes transmission resources, which limits the ability to move real power and worsens congestion. (3) The movement of reactive power results in real-power losses. When generators are required to supply excessive amounts of reactive power, their real-power production must be curtailed. These opportunity costs are not currently compensated for in most regions. Current tariffs are based on embedded costs. These embedded-cost tariffs average about $0.51/MWh, equivalent to $1.5 billion annually for the United States as a whole. Although this cost is low when compared with the cost of energy, it still aggregates to a significant amount of money. This report takes a basic look at why the power system requires reactive power (an appendix explains the fundamentals of real and reactive power). The report then examines the various types of generation and transmission resources used to supply reactive power and to control voltage. Finally it discusses how these resources are deployed and paid for in several reliability regions around the country. As the U.S. electricity industry is restructured, the generation, transmission, and system-control equipment and functions that maintain voltages within the appropriate ranges are being deintegrated.

Kirby, B.; Hirst, E.

1997-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" 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

Ex-plant consequence assessment for NUREG-1150: Models, typical results, uncertainties  

SciTech Connect (OSTI)

The assessment of ex-plant consequences for NUREG-1150 source terms was performed using the MELCOR Accident Consequence Code System (MACCS). This paper will briefly discuss the following elements of MACCS consequence calculations: input data, phenomena modeled, computational framework, typical results, controlling phenomena, and uncertainties. Wherever possible, NUREG-1150 results will be used to illustrate the discussion. 28 refs., 14 figs., 6 tabs.

Sprung, J.L.

1987-01-01T23:59:59.000Z

142

Gearbox Reliability Collaborative Phase 1 and 2: Testing and Modeling Results; Preprint  

SciTech Connect (OSTI)

The Gearbox Reliability Collaborative (GRC) investigates root causes of wind turbine gearbox premature failures and validates design assumptions that affect gearbox reliability using a combined testing and modeling approach. Knowledge gained from the testing and modeling of the GRC gearboxes builds an understanding of how the selected loads and events translate into internal responses of three-point mounted gearboxes. This paper presents some testing and modeling results of the GRC research during Phase 1 and 2. Non-torque loads from the rotor including shaft bending and thrust, traditionally assumed to be uncoupled with gearbox, affect gear and bearing loads and resulting gearbox responses. Bearing clearance increases bearing loads and causes cyclic loading, which could contribute to a reduced bearing life. Including flexibilities of key drivetrain subcomponents is important in order to reproduce the measured gearbox response during the tests using modeling approaches.

Keller, J.; Guo, Y.; LaCava, W.; Link, H.; McNiff, B.

2012-05-01T23:59:59.000Z

143

MODELLING GEOGRAPHIC PHENOMENA AT MULTIPLE LEVELS OF DETAIL: A MODEL  

E-Print Network [OSTI]

:1250/1:2500/1:10,000). Such a transformation involves creation of higher order or composite objects, such as settlement, forest, hills and to Ross Purves for his comments and suggestions on our hills and range boundary detection methodology. I

144

Crump Geyser: High Precision Geophysics & Detailed Structural...  

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

Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling John Casteel Nevada Geothermal Power Co. Validation of Innovative Exploration...

145

Comparison of the PHISICS/RELAP5-3D Ring and Block Model Results for Phase I of the OECD MHTGR-350 Benchmark  

SciTech Connect (OSTI)

The INL PHISICS code system consists of three modules providing improved core simulation capability: INSTANT (performing 3D nodal transport core calculations), MRTAU (depletion and decay heat generation) and a perturbation/mixer module. Coupling of the PHISICS code suite to the thermal hydraulics system code RELAP5-3D has recently been finalized, and as part of the code verification and validation program the exercises defined for Phase I of the OECD/NEA MHTGR 350 MW Benchmark were completed. This paper provides an overview of the MHTGR Benchmark, and presents selected results of the three steady state exercises 1-3 defined for Phase I. For Exercise 1, a stand-alone steady-state neutronics solution for an End of Equilibrium Cycle Modular High Temperature Reactor (MHTGR) was calculated with INSTANT, using the provided geometry, material descriptions, and detailed cross-section libraries. Exercise 2 required the modeling of a stand-alone thermal fluids solution. The RELAP5-3D results of four sub-cases are discussed, consisting of various combinations of coolant bypass flows and material thermophysical properties. Exercise 3 combined the first two exercises in a coupled neutronics and thermal fluids solution, and the coupled code suite PHISICS/RELAP5-3D was used to calculate the results of two sub-cases. The main focus of the paper is a comparison of the traditional RELAP5-3D “ring” model approach vs. a much more detailed model that include kinetics feedback on individual block level and thermal feedbacks on a triangular sub-mesh. The higher fidelity of the block model is illustrated with comparison results on the temperature, power density and flux distributions, and the typical under-predictions produced by the ring model approach are highlighted.

Gerhard Strydom

2014-04-01T23:59:59.000Z

146

Running GL Detail Report (also known as Department Detail Report) Initial PeopleSoft Screen  

E-Print Network [OSTI]

Running GL Detail Report (also known as Department Detail Report) Initial PeopleSoft Screen Select BSU Processes and Reports #12;Select GL Detail Report The page below will open. At this point you will have two options: #12;Option 1: If you have never run a GL Detail Report you will need to choose "Add

Barrash, Warren

147

A Heuristic Model of DansgaardOeschger Cycles. Part I: Description, Results, and Sensitivity Studies  

E-Print Network [OSTI]

. Parameterizations are included for latent heat polynyas and sea ice export from the column. The resulting heuristic representing the Nordic seas and is composed of ocean boxes stacked below a one-layer sea ice model in the proxy observational data, with the presence or absence of perennial sea ice in the Nordic seas being

Battisti, David

148

Recent results from the UrQMD hybrid model for heavy ion collisions  

E-Print Network [OSTI]

These proceedings present recent results from transport-hydrodynamics-hybrid models for heavy ion collisions at relativistic energies. The main focus is on the absorption of (anti-)protons in the hadronic afterburner stage of the reaction, di-lepton production at SPS and heavy quark dynamics.

Bleicher, Marcus; Steinheimer, Jan; van Hees, Hendrik

2015-01-01T23:59:59.000Z

149

Acoustic emission monitoring for assessment of steel bridge details  

SciTech Connect (OSTI)

Acoustic emission (AE) testing was deployed on details of two large steel Interstate Highway bridges: one cantilever through-truss and one trapezoidal box girder bridge. Quantitative measurements of activity levels at known and suspected crack locations were made by monitoring AE under normal service loads (e.g., live traffic and wind). AE indications were used to direct application of radiography, resulting in identification of a previously unknown flaw, and to inform selection of a retrofit detail.

Kosnik, D. E.; Corr, D. J. [Infrastructure Technology Institute, Northwestern University, Evanston, IL 60208 (United States); Hopwood, T. [Kentucky Transportation Center, University of Kentucky, Lexington, KY 40506 (United States)

2011-06-23T23:59:59.000Z

150

Response of a laminar premixed flame to flow oscillations: A kinematic model and thermoacoustic instability results  

SciTech Connect (OSTI)

Combustion instability is a resonance phenomenon that arises due to the coupling between the system acoustics and the unsteady heat release. The constructive feedback between the two processes, which is known to occur as a certain phase relationship between the pressure and the unsteady heat release rate is satisfied, depends on many parameters among which is the acoustic mode, the flame holder characteristics, and the dominant burning pattern. In this paper, the authors construct an analytical model to describe the dynamic response of a laminar premixed flame stabilized on the rim of a tube to velocity oscillation. They consider uniform and nonuniform velocity perturbations superimposed on a pipe flow velocity profile. The model results show that the magnitude of heat release perturbation and its phase with respect to the dynamic perturbation dependent primarily on the flame Strohal number, representing the ratio of the dominant frequency times the tube radius to the laminar burning velocity. In terms of this number, high-frequency perturbations pass through the flame while low frequencies lead to a strong response. The phase with respect to the velocity perturbation behaves in the opposite way. Results of this model are shown to agree with experimental observations and to be useful in determining how the combustion excited model is selected among all the acoustic unstable modes. The model is then used to obtain a time-domain differential equation describing the relationship between the velocity perturbation and the heat release response over the entire frequency range.

Fleifil, M.; Annaswamy, A.M.; Ghoneim, A.F. [Massachusetts Inst. of Technology, Cambridge, MA (United States)] [Massachusetts Inst. of Technology, Cambridge, MA (United States); Ghoneim, Z.A. [Ain Shams Univ., Abassia (Egypt)] [Ain Shams Univ., Abassia (Egypt)

1996-09-01T23:59:59.000Z

151

Solar Deployment System (SolarDS) Model: Documentation and Sample Results  

SciTech Connect (OSTI)

The Solar Deployment System (SolarDS) model is a bottom-up, market penetration model that simulates the potential adoption of photovoltaics (PV) on residential and commercial rooftops in the continental United States through 2030. NREL developed SolarDS to examine the market competitiveness of PV based on regional solar resources, capital costs, electricity prices, utility rate structures, and federal and local incentives. The model uses the projected financial performance of PV systems to simulate PV adoption for building types and regions then aggregates adoption to state and national levels. The main components of SolarDS include a PV performance simulator, a PV annual revenue calculator, a PV financial performance calculator, a PV market share calculator, and a regional aggregator. The model simulates a variety of installed PV capacity for a range of user-specified input parameters. PV market penetration levels from 15 to 193 GW by 2030 were simulated in preliminary model runs. SolarDS results are primarily driven by three model assumptions: (1) future PV cost reductions, (2) the maximum PV market share assumed for systems with given financial performance, and (3) PV financing parameters and policy-driven assumptions, such as the possible future cost of carbon emissions.

Denholm, P.; Drury, E.; Margolis, R.

2009-09-01T23:59:59.000Z

152

Combinatorial Algorithms for Protein Folding in Lattice Models: A Survey of Mathematical Results  

E-Print Network [OSTI]

“... a very nice step forward in the computerology of proteins. ” Ken Dill 1995[1] We present a comprehensive survey of combinatorial algorithms and theorems about lattice protein folding models obtained in the almost 15 years since the publication in 1995 of the first protein folding approximation algorithm with mathematically guaranteed error bounds [60]. The results presented here are mainly about the HP-protein folding model introduced by Ken Dill in 1985 [37]. The main topics of this survey include: approximation algorithms for linear-chain and side-chain lattice models, as well as off-lattice models, NP-completeness theorems about a variety of protein folding models, contact map structure of self-avoiding walks and HP-folds, combinatorics and algorithmics of side-chain models, bi-sphere packing and the Kepler conjecture, and the protein side-chain self-assembly conjecture. As an appealing bridge between the hybrid of continuous mathematics and discrete mathematics, a cornerstone of the mathematical difficulty of the protein folding problem, we show how work on 2D self-avoiding walks contact-map decomposition [56] can build upon the exact RNA contacts counting

Sorin Istrail; Fumei Lam

2009-01-01T23:59:59.000Z

153

A Refined Numerical Result on the First Excitation Energy in the Two-Level Pairing Model  

E-Print Network [OSTI]

The first excitation energy in the two-level pairing model is investigated in terms of the equilibrium and the small fluctuation around it. The basic idea is an extension of results presented in a previous paper by the present authors. In this investigation, the result obtained in the previous paper plays a central role: At the limit of the weak and the strong interaction strength, the results are in good agreement with the exact one. The former and the latter are calculated in the framework of the $su(2)\\otimes su(1,1)$- and the $su(2)\\otimes su(2)$-coherent state, respectively. On the basis of the above conclusion, the intermediate region for the interaction strength is described in terms of the idea of the interpolation and it is shown that the agreement of the result with the exact one is quite good.

Y. Tsue; C. Providencia; J. da Providencia; M. Yamamura

2007-01-09T23:59:59.000Z

154

Results on the search for the standard model Higgs boson at CMS  

SciTech Connect (OSTI)

A summary of the results from searches for the Standard Model Higgs Boson in the CMS experiment at LHC with data collected from proton-proton collisions at {radical}(s) = 7TeV is presented. The Higgs boson is searched in a multiplicity of decay channels using data samples corresponding to integrated luminosities in the range 4.6 - 4.8 fb{sup -1}. The investigated mass range is 110 - 600 GeV. Results are reported for each channel as well as for their combination.

Fabozzi, Francesco [INFN Sezione di Napoli, Complesso Univ. di Monte S. Angelo Via Cintia - 80126 Napoli (Italy) and Universita della Basilicata, Viale dell'Ateneo Lucano 10 - 85100 Potenza (Italy); Collaboration: CMS Collaboration

2012-10-23T23:59:59.000Z

155

Simulating plant motion with levels of detail  

E-Print Network [OSTI]

SIMULATING PLANT MOTION WITH LEVELS OF DETAIL A Senior Honors Thesis by REBECCA LYNN FLANNERY Submitted to the Office of Honors Programs k. Academic Scholarships Texas AkM University in partial fulfillment of the requirements... of the UNIVERSITY UNDERGRADUATE RESEARCH FELLOWS April 2003 Group: Engineering & Physics I SIMULATING PLANT MOTION WITH LEVELS OF DETAIL A Senior Honors Thesis by REBECCA LYNN FLANNERY Submitted to the Office of Honors Programs & Academic Scholarships...

Flannery, Rebecca Lynn

2013-02-22T23:59:59.000Z

156

Discrete Element Modeling Results of Proppant Rearrangement in the Cooke Conductivity Cell  

SciTech Connect (OSTI)

The study of propped fracture conductivity began in earnest with the development of the Cooke cell which later became part of the initial API standard. Subsequent developments included a patented multicell design to conduct 4 tests in a press at the same time. Other modifications have been used by various investigators. Recent studies by the Stim-Lab proppant consortium have indicated that the flow field across a Cooke proppant conductivity testing cell may not be uniform as initially believed which resulted is significantly different conductivity results. Post test analysis of low temperature metal alloy injections at the termination of proppant testing prior to the release of the applied stress suggest that higher flow is to be expected along the sides and top of the proppant pack than compared to the middle of the pack. To evaluate these experimental findings, a physics-based two-dimensional (2-D) discrete element model (DEM) was developed and applied to simulate proppant rearrangement during stress loading in the Cooke conductivity cell and the resulting porosity field. Analysis of these simulations are critical to understanding the impact of modification to the testing cell as well as understanding key proppant conductivity issues such as how these effects are manifested in proppant concentration testing results. The 2-D DEM model was constructed to represent a realistic cross section of the Cooke cell with a distribution of four material properties, three that represented the Cooke cell (steel, sandstone,square rings), and one representing the proppant. In principle, Cooke cell materials can be approximated as assemblies of independent discrete elements (particles) of various sizes and material properties that interact via cohesive interactions, repulsive forces, and frictional forces. The macroscopic behavior can then be modeled as the collective behavior of many interacting discrete elements. This DEM model is particularly suitable for modeling proppant mechanical interactions subjected to an applied stress, where the experimental cell is represented as a cohesive body composed of a large number of discrete elements, and proppants can be modeled as the individual discrete particles with various sizes (following the proppant size distribution-density function used in the test) that exhibit no cohesive strength between the particles. Initial 2-D DEM modeling results suggest that proppant rearrangement and non-uniform stress distribution across the proppant pack results in significant non-uniform porosity distribution across the Cooke cell. Larger porosities develop along the edge of the proppant pack beneath the square ring seal and would result in a disproportionate higher flow field along these edges as compared to the middle of the proppant pack. These results suggest that reported conductivity values determined by the Cooke cell may be biased to overestimate the actual conductivity of the proppant at high stresses and that modifications to the standard Cooke cell will affect the magnitude of this bias.

Earl Mattson; Hai Huang; Michael Conway; Lisa O'Connell

2014-02-01T23:59:59.000Z

157

Determination of High-Frequency Current Distribution Using EMTP-Based Transmission Line Models with Resulting Radiated Electromagnetic Fields  

SciTech Connect (OSTI)

Application of BPL technologies to existing overhead high-voltage power lines would benefit greatly from improved simulation tools capable of predicting performance - such as the electromagnetic fields radiated from such lines. Existing EMTP-based frequency-dependent line models are attractive since their parameters are derived from physical design dimensions which are easily obtained. However, to calculate the radiated electromagnetic fields, detailed current distributions need to be determined. This paper presents a method of using EMTP line models to determine the current distribution on the lines, as well as a technique for using these current distributions to determine the radiated electromagnetic fields.

Mork, B; Nelson, R; Kirkendall, B; Stenvig, N

2009-11-30T23:59:59.000Z

158

Recent results on QCD thermodynamics: lattice QCD versus Hadron Resonance Gas model  

E-Print Network [OSTI]

We present our most recent investigations on the QCD cross-over transition temperatures with 2+1 staggered flavours and one-link stout improvement [JHEP 1009:073, 2010]. We extend our previous two studies [Phys. Lett. B643 (2006) 46, JHEP 0906:088 (2009)] by choosing even finer lattices ($N_t$=16) and we work again with physical quark masses. All these results are confronted with the predictions of the Hadron Resonance Gas model and Chiral Perturbation Theory for temperatures below the transition region. Our results can be reproduced by using the physical spectrum in these analytic calculations. A comparison with the results of the hotQCD collaboration is also discussed.

Szabolcs Borsanyi; Zoltan Fodor; Christian Hoelbling; Sandor D. Katz; Stefan Krieg; Claudia Ratti; Kalman K. Szabo

2010-12-23T23:59:59.000Z

159

Test Series 2. 3 detailed test plan  

SciTech Connect (OSTI)

Test Series 2.3 is chronologically the second of the five sub-series of tests which comprise Test Series 2, the second major Test Series as part of the combustion research phase to be carried out at the Grimethorpe Experimental Pressurised Fluidised Bed Combustion Facility. Test Series 2.3 will consist of 700 data gathering hours which is expected to require some 1035 coal burning hours. The tests will be performed using US supplied coal and dolomite. This will be the first major series of tests on the Facility with other than the UK datum coal and dolomite. The document summarises the background to the facility and the experimental program. Described are modifications which have been made to the facility following Test Series 2.1 and a series of Screening Tests. Detailed test objectives are specified as are the test conditions for the experiments which comprise the test series. The test results will provide information on the effects of the bed temperature, excess air level, Ca/S ratio, number of coal feed lines, and combustion efficiency and sulphur retention. A significant aspect of the test series will be part load tests which will investigate the performance of the facility under conditions of turn down which simulate load following concepts specified for two combined cycle concepts, i.e., their CFCC combined cycle and a turbo charged combined cycle. The material test plan is also presented. The principal feature of the materials programme is the planned exposure of a set of static turbine blade specimens in a cascade test loop to the high temperature, high pressure flue gas. A schedule for the programme is presented as are contingency plans.

Not Available

1983-12-01T23:59:59.000Z

160

Variance, Skewness & Kurtosis: results from the APM Cluster Redshift Survey and model predictions  

E-Print Network [OSTI]

We estimate the variance $\\xibar_2$, the skewness $\\xibar_3$ and the kurtosis $\\xibar_4$ in the distribution of density fluctuations in a complete sample from the APM Cluster Redshift Survey with 339 clusters and a mean depth $ \\sim 250\\Mpc$. We are able to measure the statistics of fluctuations in spheres of radius $R \\simeq 5-80 \\Mpc$, with reasonable errorbars. The statistics in the cluster distribution follow the hierarchical pattern $\\xibar_J=S_J~\\xibar_2^{J-1}$ with $S_J$ roughly constant, $S_3 \\simeq 2$ and $S_4 \\sim 8$. We analyse the distribution of clusters taken from N-body simulations of different dark matter models. The results are compared with an alternative method of simulating clusters which uses the truncated Zel'dovich approximation. We argue that this alternative method is not reliable enough for making quantitative predictions of $\\xibar$. The N-body simulation results follow similar hierarchical relations to the observations, with $S_J$ almost unaffected by redshift distortions from peculiar motions. The standard $\\Omega=1$ Cold Dark Matter (CDM) model is inconsistent with either the second, third or fourth order statistics at all scales. However both a hybrid Mixed Dark Matter model and a low density CDM variant agree with the $\\xibar_J$ observations.

Enrique Gaztañaga; Rupert Croft; Gavin Dalton

1995-01-31T23:59:59.000Z

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


161

Modelling Viscoelastic Behaviour of Polymer by A Mixed Velocity, Displacement Formulation - Numerical and Experimental Results  

SciTech Connect (OSTI)

The objective of this work is to model the viscoelastic behaviour of polymer from the solid state to the liquid state. With this objective, we perform experimental tensile tests and compare with simulation results. The chosen polymer is a PMMA whose behaviour depends on its temperature. The computation simulation is based on Navier-Stokes equations where we propose a mixed finite element method with an interpolation P1+/P1 using displacement (or velocity) and pressure as principal variables. The implemented technique uses a mesh composed of triangles (2D) or tetrahedra (3D). The goal of this approach is to model the viscoelastic behaviour of polymers through a fluid-structure coupling technique with a multiphase approach.

Pham, VT.; Silva, L.; Digonnet, H.; Combeaud, C.; Billon, N.; Coupez, T. [Centre for Material Forming (CEMEF), MINES ParisTech, Rue Claude Daunesse, Sophia Antipolis cedex (France)

2011-05-04T23:59:59.000Z

162

Geomagnetic effects modelling for the PJM interconnection system. Part 2; Geomagnetically induced current study results  

SciTech Connect (OSTI)

The development of a computer program for calculation of geomagnetically induced current (GIC) and a GIC power system model for the Pennsylvania-New Jersey-Maryland Interconnection is described in this paper. Results of GIC for three different ionospheric source configurations are shown. A new method is presented for estimating GIC in unmetered parts of the system based on a few measurements and precalculated geomagnetic disturbance conditions. The use of an interactive, menu driven GIC program to study mitigation concepts including the effects of line outages, line series capacitors, transformer neutral blocking resistors and transformer neutral blocking capacitors is also presented.

Prabhakara, F.S.; Hannett, L.N.; Ringlee, R.J. (Power Technologies, Inc., Schenectady, NY (United States)); Ponder, J.Z. (PJM Interconnection, Norristown, PA (US))

1992-05-01T23:59:59.000Z

163

Baca geothermal demonstration project. Power plant detail design document  

SciTech Connect (OSTI)

This Baca Geothermal Demonstration Power Plant document presents the design criteria and detail design for power plant equipment and systems, as well as discussing the rationale used to arrive at the design. Where applicable, results of in-house evaluations of alternatives are presented.

Not Available

1981-02-01T23:59:59.000Z

164

Results from Alloy 600 And Alloy 690 Caustic SCC Model Boiler Tests  

SciTech Connect (OSTI)

A versatile model boiler test methodology was developed and used to compare caustic stress corrosion cracking (SCC) of mill annealed Alloy 600 and thermally treated Alloy 690. The model boiler included simulated crevice devices that efficiently and consistently concentrated Na2CO3, resulting in volatilization of CO2 with the steam and concentration of NaOH at the tube surfaces. The test methodology also included variation in tube stress, either produced by the primary to secondary side pressure differential, or by a novel method that reproducibly yields a higher stress condition on the tube. The significant effect of residual stress on tube SCC was also considered. SCC of both Alloy 600 and Alloy 690 were evaluated as a function of temperature and stress. Analytical transmission electron microscopy (ATEM) evaluations of the cracks and the grain boundaries ahead of the cracks were performed, providing insight into the SCC mechanism. This model boiler test methodology may be applicable to a range of bulkwater secondary chemistries that concentrate to produce aggressive crevice environments.

Miller, Frederick D.; Thomas, Larry E.

2009-08-03T23:59:59.000Z

165

Hawaii Solar Integration Study: Solar Modeling Developments and Study Results; Preprint  

SciTech Connect (OSTI)

The Hawaii Solar Integration Study (HSIS) is a follow-up to the Oahu Wind Integration and Transmission Study completed in 2010. HSIS focuses on the impacts of higher penetrations of solar energy on the electrical grid and on other generation. HSIS goes beyond the island of Oahu and investigates Maui as well. The study examines reserve strategies, impacts on thermal unit commitment and dispatch, utilization of energy storage, renewable energy curtailment, and other aspects of grid reliability and operation. For the study, high-frequency (2-second) solar power profiles were generated using a new combined Numerical Weather Prediction model/ stochastic-kinematic cloud model approach, which represents the 'sharp-edge' effects of clouds passing over solar facilities. As part of the validation process, the solar data was evaluated using a variety of analysis techniques including wavelets, power spectral densities, ramp distributions, extreme values, and cross correlations. This paper provides an overview of the study objectives, results of the solar profile validation, and study results.

Orwig, K.; Corbus, D.; Piwko, R.; Schuerger, M.; Matsuura, M.; Roose, L.

2012-12-01T23:59:59.000Z

166

RENDERING FILTERS FOR CONTROLLING DETAIL AND  

E-Print Network [OSTI]

RENDERING FILTERS FOR CONTROLLING DETAIL AND CREATING EFFECTS CHRISTOPHER ROBERT DECORO may be unified under the general theme of the rendering filter. Generally stated, such a filter is a passive, stateless operator that acts upon a decomposition of terms in the rendering equation

167

Detailed Financial Procedures Page 1 of 3  

E-Print Network [OSTI]

Detailed Financial Procedures Page 1 of 3 Inventories and Disposals Background In accordance with Standing Financial Regulation, Heads of Departments are responsible for maintaining inventories for all disposals thereof. (Ref 8.03 & 8.06) Inventory Spreadsheet The following information should be recorded

Levi, Ran

168

Contact Details Journeying Beyond Breast Cancer  

E-Print Network [OSTI]

Home About Contact Details Facebook Search Journeying Beyond Breast Cancer making sense of the cancer experience Feeds: Posts Comments Cancer-fighting fountain pen May 20, 2009 by JBBC A research team be used both as a research tool in the development of next-generation cancer treatments

Espinosa, Horacio D.

169

Contact details: School of Architecture, BCU  

E-Print Network [OSTI]

With 90% of the UK population living in urban areas, improving urban sustainability has become a pressing Economic Fabric This work package investigated opportunities and barriers to achieving sustainable is to be sustainable in the widest sense. Contact details: Centre for Urban and Regional Studies, U0B Dr. Austin Barber

Birmingham, University of

170

The Role of Asia in Mitigating Climate Change: Results from the Asia Modeling Exercise  

SciTech Connect (OSTI)

In 2010, Asia accounted for 60% of global population, 39% of Gross World Product, 44% of global energy consumption and nearly half of the world’s energy system CO2 emissions. Thus, Asia is an important region to consider in any discussion of climate change or climate change mitigation. This paper explores the role of Asia in mitigating climate change, by comparing the results of 23 energy-economy and integrated assessment models. We focus our analysis on seven key areas: base year data, future energy use and emissions absent climate policy, the effect of urban and rural development on future energy use and emissions, the role of technology in emissions mitigation, regional emissions mitigation, and national climate policies

Calvin, Katherine V.; Clarke, Leon E.; Krey, Volker; Blanford, Geoffrey J.; Jiang, Kejun; Kainuma, M.; Kriegler, Elmar; Luderer, Gunnar; Shukla, Priyadarshi R.

2012-12-01T23:59:59.000Z

171

Exact results for the criticality of quench dynamics in quantum Ising models  

E-Print Network [OSTI]

Based on the obtained exact results we systematically study the quench dynamics of a one-dimensional spin-1/2 transverse field Ising model with zero- and finite-temperature initial states. We focus on the magnetization of the system after a sudden change of the external field and a coherent time-evolution process. With a zero-temperature initial state, the quench magnetic susceptibility as a function of the initial field strength exhibits strongly similar scaling behaviors to those of the static magnetic susceptibility, and the quench magnetic susceptibility as a function of the final field strength shows a discontinuity at the quantum critical point. This discontinuity remains robust and always occurs at the quantum critical point even for the case of finite-temperature initial systems, which indicates a great advantage of employing quench dynamics to study quantum phase transitions.

Ying Li; M. X. Huo; Z. Song

2009-06-23T23:59:59.000Z

172

E-Print Network 3.0 - air flow models Sample Search Results  

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

Institute of Aeronautics and Astronautics Numerical Modeling of Doorway Flow Summary: software. The problem that was modeled is that of a flow from an air curtain mounted...

173

E-Print Network 3.0 - axially symmetric model Sample Search Results  

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

MASS ON EARTHQUAKE RESPONSE OF Summary: model (DM) than that of lumped mass model (LM). The ratios of maximum response axial forces... that of magnitude of the vertical...

174

E-Print Network 3.0 - assessing local model Sample Search Results  

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

OF ENGINEERING CYBERNETICS AND ROBOTICS, 60 Summary: , 60 2009 Sofia Service Oriented Architecture of Assessment Model1 Adelina Aleksieva... Assessment Model. To achieve...

175

E-Print Network 3.0 - average model parameter Sample Search Results  

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

also the shape... P) that was calculated using the mean of the output distribution, by ranking model parameters according to their impact... the effect of parameters on model...

176

E-Print Network 3.0 - anisotropic flow model Sample Search Results  

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

same fashion in symmetry planes of more complicated anisotropic models... in anisotropic media and studied the error of conventional DMO for transversely isotropic models. He...

177

E-Print Network 3.0 - abstract machine model Sample Search Results  

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

The hierarchical model for load balancing on two machines Orion Chassid Leah Epstein Abstract... Following previous work, we consider the hierarchical load balancing model on...

178

E-Print Network 3.0 - asm model extended Sample Search Results  

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

own goals; typically they use ASMs for modeling... specification purposes. But in the process they find out that ASMs suffice for their modeling purpose. In cases when... Way,...

179

E-Print Network 3.0 - anatomical models Sample Search Results  

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

the knowledge model of Protg-2000... ." They described some of the representational problems they encountered when modeling medical and anatomical... in the existing...

180

Reactive mercury in the troposphere: Model formation and results for Florida, the northeastern United States, and the Atlantic Ocean  

E-Print Network [OSTI]

; published 11 December 2007. [1] We describe the development of a model for transport and photochemistry Atlantic Ocean and Gulf of Mexico, and comparison with aircraft- based measurements in Florida. The model photochemically and correlate in regions dominated by direct emissions. Model results also suggest positive

Sillman, Sanford

Note: This page contains sample records for the topic "model results detailed" 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

Structural concepts and details for seismic design  

SciTech Connect (OSTI)

This manual discusses building and building component behavior during earthquakes, and provides suggested details for seismic resistance which have shown by experience to provide adequate performance during earthquakes. Special design and construction practices are also described which, although they might be common in some high-seismic regions, may not be common in low and moderate seismic-hazard regions of the United States. Special attention is given to describing the level of detailing appropriate for each seismic region. The UBC seismic criteria for all seismic zones is carefully examined, and many examples of connection details are given. The general scope of discussion is limited to materials and construction types common to Department of Energy (DOE) sites. Although the manual is primarily written for professional engineers engaged in performing seismic-resistant design for DOE facilities, the first two chapters, plus the introductory sections of succeeding chapters, contain descriptions which are also directed toward project engineers who authorize, review, or supervise the design and construction of DOE facilities. 88 refs., 188 figs.

Not Available

1991-09-01T23:59:59.000Z

182

Topological Reconstruction of Complex 3D Buildings and Automatic Extraction of Levels of Detail  

E-Print Network [OSTI]

and outdoor topology of a detailed 3D building model from its geometry and to extract different levelsTopological Reconstruction of Complex 3D Buildings and Automatic Extraction of Levels of Detail A is needed for most of the applications using 3D building models after the architects design it. While

Boyer, Edmond

183

Details of U.S. Climate Zones:  

Gasoline and Diesel Fuel Update (EIA)

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) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623 42YearDelawareDetails of U.S.

184

CBECS 1992 - Building Characteristics, Detailed Tables  

U.S. Energy Information Administration (EIA) 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National and Regional Data; Row: NAICS98,,,1999,0,0,1e+15,1469,6,01179,"WAT","HY"Tables andA 6 J (MillionCubic35775 84 8711757Detailed

185

First Detailed Look at RNA Dicer  

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 ZirconiaPolicyFeasibilityField OfficeFirm Uses DOE's FastestDetailed Look at RNA

186

First Detailed Look at RNA Dicer  

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 ZirconiaPolicyFeasibilityField OfficeFirm Uses DOE's FastestDetailed Look at

187

First Detailed Look at RNA Dicer  

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 ZirconiaPolicyFeasibilityField OfficeFirm Uses DOE's FastestDetailed Look

188

First Detailed Look at RNA Dicer  

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 ZirconiaPolicyFeasibilityField OfficeFirm Uses DOE's FastestDetailed

189

E-Print Network 3.0 - area prediction models Sample Search Results  

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

for: area prediction models Page: << < 1 2 3 4 5 > >> 1 The Quality of a 48-Hours Wind Power Forecast Using the German and Danish Weather Prediction Model Summary: The Quality...

190

E-Print Network 3.0 - aerosol infection model Sample Search Results  

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

under Contract No. DE-AC02-98CH10886. Summary: . Schwartz Workshop on Use of Satellite Data, Global Models, and Analysis to Advance Understanding of Aerosol... transport models...

191

Griffiss AFB integrated resource assessment. Volume 2, Electric baseline detail  

SciTech Connect (OSTI)

The US Air Force Air Combat Command has tasked the Pacific Northwest Laboratory (PNL) as the lead laboratory supporting the US Department of Energy (DOE) Federal Energy Management Program`s (FEMP) mission to identify, evaluate, and assist in acquiring all cost-effective energy projects at Griffiss Air Force Base (AFB). This is a model program PNL is designing for federal customers served by the Niagara Mohawk Power Company (Niagara Mohawk). It will (1) identify and evaluate all electric cost-effective energy projects; (2) develop a schedule at each installation for project acquisition considering project type, size, timing, and capital requirements, as well as energy and dollar savings; and (3) secure 100% of the financing required to implement electric energy efficiency projects from Niagara Mohawk and have Niagara Mohawk procure the necessary contractors to perform detailed audits and install the technologies. This report documents the assessment of baseline energy use at one of Niagara Mohawk`s primary federal facilities, Griffiss AFB, an Air Combat Command facility located near Rome, New York. It is a companion report to Volume 1, the Executive Summary, and Volume 3, the Electric Resource Assessment. The analysis examines the characteristics of electric, gas, oil, propane, coal, and purchased thermal capacity use for fiscal year (FY) 1990. The results include energy-use intensities for the facilities at Griffiss AFB by building type and electric energy end use. A complete electric energy consumption reconciliation is presented that accounts for the distribution of all major electric energy uses and losses among buildings, utilities, and central systems.

Dixon, D.R.; Armstrong, P.R.; Keller, J.M.

1993-02-01T23:59:59.000Z

192

Detailed computation of hot-plasma atomic spectra  

E-Print Network [OSTI]

We present recent evolutions of the detailed opacity code SCO-RCG which combines statistical modelings of levels and lines with fine-structure calculations. The code now includes the Partially-Resolved-Transition-Array model, which allows one to replace a complex transition array by a small-scale detailed calculation preserving energy and variance of the genuine transition array and yielding improved high-order moments. An approximate method for studying the impact of strong magnetic field on opacity and emissivity was also recently implemented. The Zeeman line profile is modeled by fourth-order Gram-Charlier expansion series, which is a Gaussian multiplied by a linear combination of Hermite polynomials. Electron collisional line broadening is often modeled by a Lorentzian function and one has to calculate the convolution of a Lorentzian with Gram-Charlier distribution for a huge number of spectral lines. Since the numerical cost of the direct convolution would be prohibitive, we propose, in order to obtain t...

Pain, Jean-Christophe; Blenski, Thomas

2015-01-01T23:59:59.000Z

193

BISICLES Captures Details of Retreating Antarctic Ice  

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

suggest that the shrinking West Antarctic ice sheet is contributing to global sea level rise. But until recently, scientists could not accurately model the physical...

194

Towards cleaner combustion engines through groundbreaking detailed chemical kinetic models  

E-Print Network [OSTI]

Ignition (HCCI) engines. The HCCI engine is characterised by the fact that the fuel and air are mixed

Paris-Sud XI, Université de

195

High Detail Stationary Optimization Models for Gas Networks  

E-Print Network [OSTI]

Oct 15, 2014 ... Abstract: Due to strict regulatory rules in combination with complex nonlinear physics, major gas network operators in Germany and Europe ...

Martin Schmidt

2014-10-15T23:59:59.000Z

196

A Stochastic Reactor Based Virtual Engine Model Employing Detailed  

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(October-DecemberBasedToward a MoreA RisingA

197

Pumped Storage Hydropower (Detailed Analysis to Demonstrate Value)-Modeling  

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 dDepartment of Energy 0Commercial andStrength

198

Result Summary for the Area 5 Radioactive Waste Management Site Performance Assessment Model Version 4.113  

SciTech Connect (OSTI)

Preliminary results for Version 4.113 of the Nevada National Security Site Area 5 Radioactive Waste Management Site performance assessment model are summarized. Version 4.113 includes the Fiscal Year 2011 inventory estimate.

Shott, G. J.

2012-04-15T23:59:59.000Z

199

Centennial Variations of the Global Monsoon Precipitation in the Last Millennium: Results from ECHO-G Model  

E-Print Network [OSTI]

Centennial Variations of the Global Monsoon Precipitation in the Last Millennium: Results from ECHO-G with the ECHAM and the global Hamburg Ocean Primitive Equation (ECHO-G) coupled ocean­atmosphere model

Wang, Bin

200

Combined results of searches for the standard model Higgs boson in pp collisions at ?s = 7 TeV  

E-Print Network [OSTI]

Combined results are reported from searches for the standard model Higgs boson in proton–proton collisions at ?s = 7 TeV in five Higgs boson decay modes: ??, bb, ?? , WW, and ZZ. The explored Higgs boson mass range is ...

Alver, B.

Note: This page contains sample records for the topic "model results detailed" 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

This paper presents the results of testing a Web-based Interactive Landform Simulation Model (WILSIM) in a  

E-Print Network [OSTI]

ABSTRACT This paper presents the results of testing a Web-based Interactive Landform Simulation Model (WILSIM) in a general education physical geography course. The goal was to determine whether

Luo, Wei

202

E-Print Network 3.0 - adhesion model burgers Sample Search Results  

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

of the Mechanics and Physics of Solids 53 (2005) 19511983 Summary: in adhesive joint fracture are investigated by modelling the adherents as well as a finite thickness...

203

E-Print Network 3.0 - aerosol cfd model Sample Search Results  

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

Laboratory Collection: Engineering 14 Solution characters of iterative coupling between energy simulation and CFD programs Summary: type of airflow models. CFD predicts the...

204

E-Print Network 3.0 - ar4 amip models Sample Search Results  

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

Ocean Observation Data to a Coupled Model... . Comparison of precipitation monthly climatology (mmday). (a) CMAP (observation). (b) MOVE-C. (c) ... Source: National Oceanography...

205

E-Print Network 3.0 - artificial genome model Sample Search Results  

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

Genomes: Choices to Make The first sequenced genome of a plant, Summary: in plant genomics re- search. Many of the obvious candidates for genome sequencing, model species......

206

E-Print Network 3.0 - atmospheric test models Sample Search Results  

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

and Tectonics (COMET) Collection: Geosciences 7 BTRAM: An Interactive Atmospheric Radiative Transfer Model I.M. Chapman1 Summary: BTRAM: An Interactive Atmospheric Radiative...

207

E-Print Network 3.0 - age prediction models Sample Search Results  

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

2009 The Authors 65 Summary: and longevity in model organisms, a curated database of genes potentially associated with human aging... discoveries in the genetics of...

208

E-Print Network 3.0 - adaptation du modele Sample Search Results  

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

Adaptive algorithms for phase field models of some interface problems Department of Mathematics, Pennsylvania State University, University Park, PA 16802, USA. Summary: Adaptive...

209

E-Print Network 3.0 - armax model based Sample Search Results  

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

based Page: << < 1 2 3 4 5 > >> 1 Task Identification and Characterisation in Mobile Robotics Summary: similar be- haviour to the original controller. ARMAX and NARMAX modelling...

210

E-Print Network 3.0 - aortic impedance model Sample Search Results  

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

) signals noninvasively. An abdominal aortic aneurysm (AAA) was induced using a CaCl2 model in order... significance between normal and pathological aortic states in the...

211

E-Print Network 3.0 - angular overlap model Sample Search Results  

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

Summary: to develop a relatively simple model of stable motion. The angular momentum of a system is conserved... of angular momentum conservation. Impact: Besides providing an...

212

E-Print Network 3.0 - attenuation ncq models Sample Search Results  

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

Technische Universitt Berlin Collection: Computer Technologies and Information Sciences 20 Physical modeling and analysis of P-wave attenuation anisotropy in...

213

E-Print Network 3.0 - abelian higgs model Sample Search Results  

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

of Minnesota Collection: Mathematics 44 CLNS 951381 SOME REMARKS ON SUPERSTRING PHENOMENOLOGY Lambda Summary: -level string model involves a non-abelian asymmetric orbifold...

214

E-Print Network 3.0 - aided design models Sample Search Results  

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

and Modeling - Architecture... edge n Pro Engineer (Pro E) n Catia n Microstation n Solid Works n Autocad Drafting 2D ... Source: Krovi, Venkat - Department of Mechanical and...

215

E-Print Network 3.0 - analysis model gsam Sample Search Results  

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

and Materials Science, Rice University Collection: Engineering 2 2010 Advocate Health Care. All Rights Reserved. Table of Contents Summary: and have launched a redesigned model...

216

E-Print Network 3.0 - academic centric model Sample Search Results  

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

en.wikipedia.orgwikiEngineering Summary: models and analogy. J.-M. Hoc et al., Eds. Psychology of Programming. Academic Press. London, 1990, 139... and End User Programmers,"...

217

E-Print Network 3.0 - animal models commonly Sample Search Results  

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

in which the animation occurs concurrently with the execution of the program... () color() ... ... ... Figure 2: Model of program to ... Source: McCrickard, Scott -...

218

E-Print Network 3.0 - animal model effects Sample Search Results  

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

in which the animation occurs concurrently with the execution of the program... () color() ... ... ... Figure 2: Model of program to ... Source: McCrickard, Scott -...

219

E-Print Network 3.0 - ann modelling studies Sample Search Results  

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

predictive models. Neural networks are constructed... the search to the set of feasible networks. The network design problem ... Source: Smith, Alice E. - Department of...

220

Modeling the Capacity and Emissions Impacts of Reduced Electricity Demand. Part 1. Methodology and Preliminary Results.  

E-Print Network [OSTI]

2011).pdf. ———. 2012a. “Annual Energy Outlook (AEO) 2012. ”2013. “Annual Energy Outlook - Model Documentation. ”forecast, the Annual Energy Outlook (AEO) (DOE EIA 2012a).

Coughlin, Katie

2013-01-01T23:59:59.000Z

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


221

E-Print Network 3.0 - algae kinetic modelling Sample Search Results  

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

intends to move... requires moving beyond small canonical models to realistic, large-scale, dynamic ... Source: Renewal Resource Data Center, National Center for Photovoltaics...

222

E-Print Network 3.0 - animal model comparison Sample Search Results  

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

as animation... test for this model. Mayer and Moreno (2002) describe seven animation design principles that support... Article Molecular and Cellular Biology Animations:...

223

E-Print Network 3.0 - action model trained Sample Search Results  

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

Josef Sivic, Francis Bach and Jean Ponce Summary: - time features and use an SVM to train action models. Our automatic video annotation is based on video... action clustering...

224

E-Print Network 3.0 - accurate field modeling Sample Search Results  

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

Geosciences 3 Deciphering correlations: Bayesian decoding of multi-neuronal spike trains in primate retina Summary: are significantly smaller under the coupled model,...

225

E-Print Network 3.0 - abragam model Sample Search Results  

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

and Abragam, Horowitz and Pryce point out... the Mssbauer effect might be used to test the model which has been postulated by Marshall 14 Source: Ecole Polytechnique,...

226

Conclusions The results show that the models are able to predict the response of the FETi motor  

E-Print Network [OSTI]

Conclusions The results show that the models are able to predict the response of the FETi motor just one animal might over-fit the noise of that particular animal. However, a model designed strand transmit the movement to the sensory neurons in the FeCO, which excite the motor neurons. Design

Sóbester, András

227

Impacts of Climate Change on Energy Consumption and Peak Demand in Buildings: A Detailed Regional Approach  

SciTech Connect (OSTI)

This paper presents the results of numerous commercial and residential building simulations, with the purpose of examining the impact of climate change on peak and annual building energy consumption over the portion of the Eastern Interconnection (EIC) located in the United States. The climate change scenario considered (IPCC A2 scenario as downscaled from the CASCaDE data set) has changes in mean climate characteristics as well as changes in the frequency and duration of intense weather events. This investigation examines building energy demand for three annual periods representative of climate trends in the CASCaDE data set at the beginning, middle, and end of the century--2004, 2052, and 2089. Simulations were performed using the Building ENergy Demand (BEND) model which is a detailed simulation platform built around EnergyPlus. BEND was developed in collaboration with the Platform for Regional Integrated Modeling and Analysis (PRIMA), a modeling framework designed to simulate the complex interactions among climate, energy, water, and land at decision-relevant spatial scales. Over 26,000 building configurations of different types, sizes, vintages, and, characteristics which represent the population of buildings within the EIC, are modeled across the 3 EIC time zones using the future climate from 100 locations within the target region, resulting in nearly 180,000 spatially relevant simulated demand profiles for each of the 3 years. In this study, the building stock characteristics are held constant based on the 2005 building stock in order to isolate and present results that highlight the impact of the climate signal on commercial and residential energy demand. Results of this analysis compare well with other analyses at their finest level of specificity. This approach, however, provides a heretofore unprecedented level of specificity across multiple spectrums including spatial, temporal, and building characteristics. This capability enables the ability to perform detailed hourly impact studies of building adaptation and mitigation strategies on energy use and electricity peak demand within the context of the entire grid and economy.

Dirks, James A.; Gorrissen, Willy J.; Hathaway, John E.; Skorski, Daniel C.; Scott, Michael J.; Pulsipher, Trenton C.; Huang, Maoyi; Liu, Ying; Rice, Jennie S.

2015-01-01T23:59:59.000Z

228

Project Controls to Minimize Cost and Schedule Overruns: A Model, Research Agenda, and Initial Results  

E-Print Network [OSTI]

1 of 27 Project Controls to Minimize Cost and Schedule Overruns: A Model, Research Agenda been successfully applied to the study of projects for many years. While this modeling has clearly defined the structures which create project dynamics, it has been less helpful in providing explicit

Ford, David N.

229

MECHANICAL TEST RESULTS ON DIPOLE MODEL C-l 25 mm ALUMINUM COLLARS  

E-Print Network [OSTI]

P~. FI'9 . ~ C.C rv'IW\\ 707~-Th ALUMINUM ' ~LAI2.. o Pl.ATTDIPOLE MODEL C-1 25 mm ALUMINUM COLLARS C. Peters FebruaryON DIPOLE MODEL C-I 25 mm ALUMINUM COLLARS· Craig Peters

Peters, C.

2010-01-01T23:59:59.000Z

230

H2A Hydrogen Delivery Infrastructure Analysis Models and Conventional Pathway Options Analysis Results  

E-Print Network [OSTI]

H2A Hydrogen Delivery Infrastructure Analysis Models and Conventional Pathway Options Analysis ...........................................................................2-1 H2A Hydrogen Delivery Models 2.1.5.2 ......................................................................2-10 Refueling Station Compressor 2.1.5.3 ............................2-11 Refueling Station Liquid

231

Detailed Assessment of Particulate Characteristics from Low-Temperatur...  

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

Detailed Assessment of Particulate Characteristics from Low-Temperature Combustion Engines Detailed Assessment of Particulate Characteristics from Low-Temperature Combustion...

232

Atomic detail brownian dynamics simulations of concentrated protein...  

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

detail brownian dynamics simulations of concentrated protein solutions with a mean field treatment of hydrodynamic Atomic detail brownian dynamics simulations of concentrated...

233

Improving Combustion Software to Solve Detailed Chemical Kinetics...  

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

Combustion Software to Solve Detailed Chemical Kinetics for HECC Improving Combustion Software to Solve Detailed Chemical Kinetics for HECC 2012 DOE Hydrogen and Fuel Cells Program...

234

Residential Windows and Window Coverings: A Detailed View of...  

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

Residential Windows and Window Coverings: A Detailed View of the Installed Base and User Behavior Residential Windows and Window Coverings: A Detailed View of the Installed Base...

235

Toeplitz algebras and spectral results for the one-dimensional Heisenberg model  

SciTech Connect (OSTI)

We determine the structure of the spectrum and obtain nonpropagation estimates for a class of Toeplitz operators acting on a subset of the lattice Z{sup N}. This class contains the Hamiltonian of the one-dimensional Heisenberg model.

Damak, Mondher; Mantoiu, Marius; Tiedra de Aldecoa, Rafael [Departement de Mathematiques, Universite de Sfax, B.P. 802-3018 Sfax (Tunisia); Institute of Mathematics 'Simion Stoilow' of the Romanian Academy, P.O. Box 1-764, Bucharest, RO-014700 (Romania); Departement de Mathematiques, Universite de Paris XI, 91405 Orsay Cedex (France)

2006-08-15T23:59:59.000Z

236

E-Print Network 3.0 - aerosol generator model Sample Search Results  

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

S N E E T A L . 2002 American Meteorological Society Summary: by no more than 10% of the cooling caused by aerosols. 1. Introduction Observations and models highlight......

237

E-Print Network 3.0 - atmosphere box model Sample Search Results  

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

Ecology 6 Investigating Large-scale Contemporary CO2 Sources and Sinks Using Inverse Transport Modelling Applied to CO2, CH4 and CO Summary: in atmospheric CO2 concentration. 3....

238

E-Print Network 3.0 - atpase alpha model Sample Search Results  

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

Must Move On From the E1E2 Model for the Reaction Cycle of the P-type ATPases. J. Bioenerg. Biomemb. 35... -reviewed Publications Scarborough, G.A., Proton Translocation...

239

Headcut retreat resulting from plunge pool erosion in a 3D landscape evolution model  

E-Print Network [OSTI]

Headcut retreat produced by plunge pools is represented using existing concepts about this type of erosion. The model estimates retreat rates, given flow, height of the headcut, upstream slope and Manning's roughness, and ...

Flores Cervantes, Javier Homero, 1977-

2004-01-01T23:59:59.000Z

240

Diurnal cycle of air pollution in the Kathmandu Valley, Nepal: 2. Modeling results  

E-Print Network [OSTI]

After completing a 9-month field experiment studying air pollution and meteorology in the Kathmandu Valley, Nepal, we set up the mesoscale meteorological model MM5 to simulate the Kathmandu Valley's meteorology with a ...

Panday, Arnico K.

Note: This page contains sample records for the topic "model results detailed" 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

E-Print Network 3.0 - acceptance model tam Sample Search Results  

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

and Information Sciences 24 Power-Aware Test Planning in the Early System-on-Chip Design Exploration Process Summary: and of nearly equal length. In our model, we specify the...

242

E-Print Network 3.0 - analysis model dam Sample Search Results  

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

water from Yongdam Dam. The advantages of a model such as the one... , irrigation, hydropower, and recreation. Two major dams are ... Source: Kim, Young-Oh - Department of Civil...

243

E-Print Network 3.0 - ageing model organism Sample Search Results  

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

by tree-ring counts, suggesting inbuilt ages of 0- 670 years. Second, a simulation model that uses... charcoal 14C ages in the same study area suggests that either the...

244

Co-Simulation of Detailed Whole Building with the Power System to Study Smart Grid Applications  

SciTech Connect (OSTI)

Modernization of the power system in a way that ensures a sustainable energy system is arguably one of the most pressing concerns of our time. Buildings are important components in the power system. First, they are the main consumers of electricity and secondly, they do not have constant energy demand. Conventionally, electricity has been difficult to store and should be consumed as it is generated. Therefore, maintaining the demand and supply is critical in the power system. However, to reduce the complexity of power models, buildings (i.e., end-use loads) are traditionally modeled and represented as aggregated “dumb” nodes in the power system. This means we lack effective detailed whole building energy models that can support requirements and emerging technologies of the smart power grid. To gain greater insight into the relationship between building energy demand and power system performance, it is important to constitute a co-simulation framework to support detailed building energy modeling and simulation within the power system to study capabilities promised by the modern power grid. This paper discusses ongoing work at Pacific Northwest National Laboratory and presents underlying tools and framework needed to enable co-simulation of building, building energy systems and their control in the power system to study applications such as demand response, grid-based HVAC control, and deployment of buildings for ancillary services. The optimal goal is to develop an integrated modeling and simulation platform that is flexible, reusable, and scalable. Results of this work will contribute to future building and power system studies, especially those related to the integrated ‘smart grid’. Results are also expected to advance power resiliency and local (micro) scale grid studies where several building and renewable energy systems transact energy directly. This paper also reviews some applications that can be supported and studied using the framework introduced to understand their implications before they can be successfully implemented in the power system.

Makhmalbaf, Atefe; Fuller, Jason C.; Srivastava, Viraj; Ciraci, Selim; Daily, Jeffrey A.

2014-12-24T23:59:59.000Z

245

Ancillary-service details: Dynamic scheduling  

SciTech Connect (OSTI)

Dynamic scheduling (DS) is the electronic transfer from one control area to another of the time-varying electricity consumption associated with a load or the time-varying electricity production associated with a generator. Although electric utilities have been using this technique for at least two decades, its use is growing in popularity and importance. This growth is a consequence of the major changes under way in US bulk-power markets, in particular efforts to unbundle generation from transmission and to increase competition among generation providers. DS can promote competition and increase choices. It allows consumers to purchase certain services from entities outside their physical-host area and it allows generators to sell certain services to entities other than their physical host. These services include regulation (following minute-to-minute variations in load) and operating reserves, among others. Such an increase in the number of possible suppliers and customers should encourage innovation and reduce the costs and prices of providing electricity services. The purpose of the project reported here was to collect and analyze data on utility experiences with DS. Chapter 2 provides additional details and examples of the definitions of DS. Chapter 3 explains why DS might be an attractive service that customers and generators, as well as transmission providers, might wan to use. Chapter 4 presents some of the many current DS examples the authors uncovered in their interviews. Chapter 5 discusses the costs and cost-effectiveness of DS. Chapter 6 explains what they believe can and cannot be electronically moved from one control area to another, primarily in terms of the six ancillary services that FERC defined in Order 888. Chapter 7 discusses the need for additional research on DS.

Hirst, E.; Kirby, B.

1997-01-01T23:59:59.000Z

246

Increase of Carbon Cycle Feedback with Climate Sensitivity: Results from a coupled Climate and Carbon Cycle Model  

SciTech Connect (OSTI)

Coupled climate and carbon cycle modeling studies have shown that the feedback between global warming and the carbon cycle, in particular the terrestrial carbon cycle, could accelerate climate change and result in larger warming. In this paper, we investigate the sensitivity of this feedback for year-2100 global warming in the range of 0 K to 8 K. Differing climate sensitivities to increased CO{sub 2} content are imposed on the carbon cycle models for the same emissions. Emissions from the SRES A2 scenario are used. We use a fully-coupled climate and carbon cycle model, the INtegrated Climate and CArbon model (INCCA) the NCAR/DOE Parallel Coupled Model coupled to the IBIS terrestrial biosphere model and a modified-OCMIP ocean biogeochemistry model. In our model, for scenarios with year-2100 global warming increasing from 0 to 8 K, land uptake decreases from 47% to 29% of total CO{sub 2} emissions. Due to competing effects, ocean uptake (16%) shows almost no change at all. Atmospheric CO{sub 2} concentration increases were 48% higher in the run with 8 K global climate warming than in the case with no warming. Our results indicate that carbon cycle amplification of climate warming will be greater if there is higher climate sensitivity to increased atmospheric CO{sub 2} content; the carbon cycle feedback factor increases from 1.13 to 1.48 when global warming increases from 3.2 to 8 K.

Govindasamy, B; Thompson, S; Mirin, A; Wickett, M; Caldeira, K; Delire, C

2004-04-01T23:59:59.000Z

247

E-Print Network 3.0 - allergy mouse model Sample Search Results  

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

CBMC proliferation... -cockroach, anti-mouse, and anti-dust mite IgE levels, wheeze, cough, eczema and asthma. Results: ... Source: Columbia University, Department of...

248

E-Print Network 3.0 - asset allocation model Sample Search Results  

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

assets to agents can... assets and enable efficient, flexible and dynamic allocation of radio spectrum resources. The design... and the resulting optimal prices. The efficient...

249

Physical control oriented model of large scale refrigerators to synthesize advanced control schemes. Design, validation, and first control results  

SciTech Connect (OSTI)

In this paper, a physical method to obtain control-oriented dynamical models of large scale cryogenic refrigerators is proposed, in order to synthesize model-based advanced control schemes. These schemes aim to replace classical user experience designed approaches usually based on many independent PI controllers. This is particularly useful in the case where cryoplants are submitted to large pulsed thermal loads, expected to take place in the cryogenic cooling systems of future fusion reactors such as the International Thermonuclear Experimental Reactor (ITER) or the Japan Torus-60 Super Advanced Fusion Experiment (JT-60SA). Advanced control schemes lead to a better perturbation immunity and rejection, to offer a safer utilization of cryoplants. The paper gives details on how basic components used in the field of large scale helium refrigeration (especially those present on the 400W @1.8K helium test facility at CEA-Grenoble) are modeled and assembled to obtain the complete dynamic description of controllable subsystems of the refrigerator (controllable subsystems are namely the Joule-Thompson Cycle, the Brayton Cycle, the Liquid Nitrogen Precooling Unit and the Warm Compression Station). The complete 400W @1.8K (in the 400W @4.4K configuration) helium test facility model is then validated against experimental data and the optimal control of both the Joule-Thompson valve and the turbine valve is proposed, to stabilize the plant under highly variable thermals loads. This work is partially supported through the European Fusion Development Agreement (EFDA) Goal Oriented Training Program, task agreement WP10-GOT-GIRO.

Bonne, François; Bonnay, Patrick [INAC, SBT, UMR-E 9004 CEA/UJF-Grenoble, 17 rue des Martyrs, 38054 Grenoble (France); Alamir, Mazen [Gipsa-Lab, Control Systems Department, CNRS-University of Grenoble, 11, rue des Mathématiques, BP 46, 38402 Saint Martin d'Hères (France)

2014-01-29T23:59:59.000Z

250

Modeling and Identification of 2 DOF Low Cost Driving Simulator: Experimental Results  

E-Print Network [OSTI]

consists in motorized rail for the longitudinal movement while the second system consists in motorized yaw and the modeling aspects of a 2 DOF low cost motion platform allowing the restitution of the longitudinal and yaw will be implemented. The whole system is considered as a two coupled systems and linked mechanically. The first system

Paris-Sud XI, Université de

251

Summary Results for Brine Migration Modeling Performed by LANL LBNL and SNL for the UFD Program  

SciTech Connect (OSTI)

This report summarizes laboratory and field observations and numerical modeling related to coupled processes involving brine and vapor migration in geologic salt, focusing on recent developments and studies conducted at Sandia, Los Alamos, and Berkeley National Laboratories. Interest into the disposal of heat-generating waste in salt has led to interest into water distribution and migration in both run-of-mine crushed and intact geologic salt. Ideally a fully coupled thermal-hydraulic-mechanical-chemical simulation is performed using numerical models with validated constitutive models and parameters. When mechanical coupling is not available, mechanical effects are prescribed in hydraulic models as source, boundary, or initial conditions. This report presents material associated with developing appropriate initial conditions for a non-mechanical hydrologic simulation of brine migration in salt. Due to the strong coupling between the mechanical and hydrologic problems, the initial saturation will be low for the excavation disturbed zone surrounding the excavation. Although most of the material in this report is not new, the author hopes it is presented in a format making it useful to other salt researchers.

Kuhlman, Kristopher L.

2014-09-01T23:59:59.000Z

252

Evaluation of the CRITERIA Irrigation Scheme Soil Water Balance Model in Texas – Initial Results  

E-Print Network [OSTI]

The CRITERIA model was created in the 1990s in Italy, and is based on the soil water balance computation procedures developed at the Wageningen University in the Netherlands in the 1980s. CRITERIA has been used as an analysis and regional water...

Bonaiti, G.; Fipps, G.

2011-01-01T23:59:59.000Z

253

Late breaking results: ARPipes: Aligning Virtual models to their Physical Counterparts with Spatial Augmented Reality  

E-Print Network [OSTI]

models to their physical representation. ARPipes provides both a visual overlay of physical plant. The paper describes the process of employing original CAD data of plant equipment and transforming the data with maintenance tasks in fabrication plants. This paper presents the first step in the AR process, the visual

Thomas, Bruce

254

Carbon pools in Mediterranean forests: comparing eddy covariance and GOTILWA+ model results.  

E-Print Network [OSTI]

of water stress on ecosystem function leads to big discrepancies when modelling under these conditions. Recent advances allow us to successfully reproduce water and carbon balances during periods of stress ilex, Pinus ponderosa, and Fagus sylvatica, and varying degrees of water stress and ecosystem responses

Gracia, Carlos

255

A Multi-FhJid CFD Turbulent Entrainment Combustion Model: Formulation and One-Dimensional Results  

E-Print Network [OSTI]

and physical processes that occur during combustion. Short time scales and extremes in temperature and pressure chamber and to predict conditions at the time of spark [1,2]. However, only in the last several years has controlled PREPRINT 1997 SAE Fall Fuels and Lubricants Meeting #12;models of Magnuussen [

256

Detailed chemical kinetic mechanism for the oxidation of biodiesel fuels blend surrogate  

E-Print Network [OSTI]

1 Detailed chemical kinetic mechanism for the oxidation of biodiesel fuels blend surrogate of biodiesel fuels in diesel and homogeneous charge compression ignition engines. Keywords: Methyl decanoate; Methyl decenoate; Surrogate; Oxidation; Biodiesel fuels; Kinetic modeling; Engine; Low

Paris-Sud XI, Université de

257

Detailed Chemical Analysis of Two Giants in the SGR DSPH  

E-Print Network [OSTI]

The 8m class telescopes allow for the first time to study stars of external galaxies with the same resolution and S/N ratio which has been so far used for Galactic stars. It is quite likely that this study will shake some of our current beliefs. In this poster we highlight some of the results which have been obtained for two giants in the Sgr dSph thanks to the UVES spectrograph on the ESO 8.2m Kueyen telescope. Further details on the observations and data analysis may be found in Bonifacio et al (2000).

P. Bonifacio; P. Molaro

2001-01-23T23:59:59.000Z

258

Exact theory and numeric results for short pulse ionization of simple model atom in one dimension  

E-Print Network [OSTI]

Our exact theory for continuous harmonic perturbation of a one dimensional model atom by parametric variations of its potential is generalized for the cases when a) the atom is exposed to short pulses of an external harmonic electric field and b) the forcing is represented by short bursts of different shape changing the strength of the binding potential. This work is motivated not only by the wide use of laser pulses for atomic ionization, but also by our earlier study of the same model which successfully described the ionization dynamics in all orders, i.e. the multi-photon processes, though being treated by the non-relativistic Schr\\"odinger equation. In particular, it was shown that the bound atom cannot survive the excitation of its potential caused by any non-zero frequency and amplitude of the continuous harmonic forcing. Our present analysis found important laws of the atomic ionization by short pulses, in particular the efficiency of ionizing this model system and presumably real ones as well.

Rokhlenko, Alexander

2015-01-01T23:59:59.000Z

259

The Luminosity Monitoring System for the LHC: Modeling and Test Results  

SciTech Connect (OSTI)

Simulation results of the Beam Rate of Neutrals (BRAN) luminosity detector for the CERN Large Hadron Collider are presented. The detectors are intended to measure the bunch-by-bunch relative luminosity at the ATLAS and CMS experiments. Building up from experimental results from test runs at the SPS, RHIC and ALS we extend the simulated setup to the TAN neutral absorbers located at 140 m at both sides the IP1 and IP5 interaction points. The expected signal amplitudes are calculated for pp-collisions energies between 450 GeV and 7 TeV using the Monte Carlo package FLUKA and its graphical user interface FLAIR.

Ratti, A.; Beche, J.F.; Byrd, J.; Chow, K.; Denes, P.; Doolittle, L.; Ghiorso, W.; Manfredi, P.F.; Matis, H.; Monroy, M.; Plate, D.; Stezelberger, T.; Stiller, J.; Turko, B.; Turner, W.C.; Yaver, H.; Zimmermann, S.; Bravin, E.; Drees, A.; Miyamoto, R.

2009-10-25T23:59:59.000Z

260

Summary Results for Brine Migration Modeling Performed by LANL, LBNL and  

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 the GridwiseSiteDepartmentChallenge | DepartmentEnergy Audit ModelSueLetterofSNL

Note: This page contains sample records for the topic "model results detailed" 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

Vista at CDF: Results of a model-independent search for new physics in 927 pb**-1 at CDF  

SciTech Connect (OSTI)

A global, model-independent search for high-pT exotic phenomena is presented using 927 pb{sup -1} of CDF II data. The search algorithms employed in this analysis are Vista and Sleuth. These proceedings focus on Vista, including a description of the method and a summary of results.

Choudalakis, Georgios; /MIT, LNS

2007-10-01T23:59:59.000Z

262

ON THE DYNAMICS OF THE SOLAR CORONA: FIRST RESULTS OBTAINED WITH A NEW 3D MHD MODEL  

E-Print Network [OSTI]

1 ON THE DYNAMICS OF THE SOLAR CORONA: FIRST RESULTS OBTAINED WITH A NEW 3D MHD MODEL J. Kleimann 1) is applied to the problem of the dynamics of the solar corona. First, we present the basic system of equations for a two- uid description of the solar wind plasma and point out possible numerical di

Grauer, Rainer

263

Considerable ModelData Mismatch in Temperature over China during the Mid-Holocene: Results of PMIP Simulations  

E-Print Network [OSTI]

solar radiation at the top of the at- mosphere over China during the mid-Holocene. TemperatureConsiderable Model­Data Mismatch in Temperature over China during the Mid-Holocene: Results of PMIP Center, Chinese Academy of Sciences, Beijing, China XIANMEI LANG International Center for Climate

264

O3-NOx-VOC sensitivity and NOx-VOC indicators in Paris: Results from models and Atmospheric Pollution Over  

E-Print Network [OSTI]

from the Atmospheric Pollution Over the Paris Area campaign near Paris, with special attention Composition and Structure: Pollution--urban and regional (0305); 0365 Atmospheric Composition and Structure-VOC indicators in Paris: Results from models and Atmospheric Pollution Over the Paris Area (ESQUIF) measurements

Menut, Laurent

265

Evaluation of Model Results and Measured Performance of Net-Zero Energy Homes in Hawaii: Preprint  

SciTech Connect (OSTI)

The Kaupuni community consists of 19 affordable net-zero energy homes that were built within the Waianae Valley of Oahu, Hawaii in 2011. The project was developed for the native Hawaiian community led by the Department of Hawaiian Homelands. This paper presents a comparison of the modeled and measured energy performance of the homes. Over the first year of occupancy, the community as a whole performed within 1% of the net-zero energy goals. The data show a range of performance from house to house with the majority of the homes consistently near or exceeding net-zero, while a few fall short of the predicted net-zero energy performance. The impact of building floor plan, weather, and cooling set point on this comparison is discussed. The project demonstrates the value of using building energy simulations as a tool to assist the project to achieve energy performance goals. Lessons learned from the energy performance monitoring has had immediate benefits in providing feedback to the homeowners, and will be used to influence future energy efficient designs in Hawaii and other tropical climates.

Norton, P.; Kiatreungwattana, K.; Kelly, K. J.

2013-03-01T23:59:59.000Z

266

Reactive Power Laboratory: Synchronous Condenser Testing&Modeling Results - Interim Report  

SciTech Connect (OSTI)

The subject report documents the work carried out by Oak Ridge National Laboratory (ORNL) during months 5-7 (May-July 2005) of a multi-year research project. The project has the overall goal of developing methods of incorporating distributed energy (DE) that can produce reactive power locally and for injecting into the distribution system. The objective for this new type of DE is to be able to provide voltage regulation and dynamic reactive power reserves without the use of extensive communication and control systems. The work performed over this three-month period focused on four aspects of the overall objective: (1) characterization of a 250HP (about 300KVAr) synchronous condenser (SC) via test runs at the ORNL Reactive Power Laboratory; (2) development of a data acquisition scheme for collecting the necessary voltage, current and power readings at the synchronous condenser and on the distribution system; (3) development of algorithms for analyzing raw test data from the various test runs; and (4) validation of a steady-state model for the synchronous condenser via the use of a commercial software package to study its effects on the ORNL 13.8/2.4kV distribution network.

Henry, SD

2005-09-27T23:59:59.000Z

267

Two Studies Reveal Details of Lithium-Battery Function  

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

Two Studies Reveal Details of Lithium-Battery Function Two Studies Reveal Details of Lithium-Battery Function Print Wednesday, 27 February 2013 00:00 Our way of life is deeply...

268

Alternate States of Proteins Revealed by Detailed Energy Landscape Mapping  

E-Print Network [OSTI]

Alternate States of Proteins Revealed by Detailed Energy Landscape Mapping Michael D. Tyka1 Keywords: Rosetta; alternative conformations; protein mobility; structure prediction; validation What through analysis of detailed protein energy landscapes generated by large-scale, native- enhanced sampling

Baker, David

269

How to use the Weblinks GL Transaction Detail Rollup Template  

E-Print Network [OSTI]

How to use the Weblinks GL Transaction Detail Rollup Template Issue Details The following instructions will show you how to utilize Excel to summarize the Weblinks GL Transaction Detail report so Instructions: 1. Create a Weblinks report 2. Export to Excel 3. Open the Excel 4. Copy and paste to Weblinks GL

Yamamoto, Keith

270

Percutaneous Irreversible Electroporation Lung Ablation: Preliminary Results in a Porcine Model  

SciTech Connect (OSTI)

Objective: Irreversible electroporation (IRE) uses direct electrical pulses to create permanent 'pores' in cell membranes to cause cell death. In contrast to conventional modalities, IRE has a nonthermal mechanism of action. Our objective was to study the histopathological and imaging features of IRE in normal swine lung. Materials and Methods: Eleven female swine were studied for hyperacute (8 h), acute (24 h), subacute (96 h), and chronic (3 week) effects of IRE ablation in lung. Paired unipolar IRE applicators were placed under computed tomography (CT) guidance. Some applicators were deliberately positioned near bronchovascular structures. IRE pulse delivery was synchronized with the cardiac rhythm only when ablation was performed within 2 cm of the heart. Contrast-enhanced CT scan was performed immediately before and after IRE and at 1 and 3 weeks after IRE ablation. Representative tissue was stained with hematoxylin and eosin for histopathology. Results: Twenty-five ablations were created: ten hyperacute, four acute, and three subacute ablations showed alveolar edema and necrosis with necrosis of bronchial, bronchiolar, and vascular epithelium. Bronchovascular architecture was maintained. Chronic ablations showed bronchiolitis obliterans and alveolar interstitial fibrosis. Immediate post-procedure CT images showed linear or patchy density along the applicator tract. At 1 week, there was consolidation that resolved partially or completely by 3 weeks. Pneumothorax requiring chest tube developed in two animals; no significant cardiac arrhythmias were noted. Conclusion: Our preliminary porcine study demonstrates the nonthermal and extracellular matrix sparing mechanism of action of IRE. IRE is a potential alternative to thermal ablative modalities.

Deodhar, Ajita [Memorial Sloan Kettering Cancer Center, Interventional Radiology and Image-Guided Therapies (United States); Monette, Sebastien [Memorial Sloan Kettering Cancer Center, Laboratory of Comparative Pathology (United States); Single, Gordon W.; Hamilton, William C. [Angiodynamics, Inc (United States); Thornton, Raymond H.; Sofocleous, Constantinos T.; Maybody, Majid; Solomon, Stephen B., E-mail: solomons@mskcc.org [Memorial Sloan Kettering Cancer Center, Interventional Radiology and Image-Guided Therapies (United States)

2011-12-15T23:59:59.000Z

271

Carbon-nitrogen interactions regulate climate-carbon cycle feedbacks: results from an atmosphere-ocean general circulation model  

E-Print Network [OSTI]

forests indi- cates that the model representation of competition between plants and microbes for new mineral nitrogen resources is reasonable. Our results suggest a weaker dependence of net land carbon flux on soil moisture changes in tropical regions... National Laboratory, Oak Ridge, TN 37831-6335, USA 2Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543-1543, USA 3Climate and Global Dynamics Division, National Center for Atmospheric Research...

Thornton, P. E.; Doney, S. C.; Lindsay, Keith; Moore, J. K.; Mahowald, N. M.; Randerson, J. T.; Fung, I.; Lamarque, J. F.; Feddema, Johannes J.

2009-01-01T23:59:59.000Z

272

Modeling target bulk heating resulting from ultra-intense short pulse laser irradiation of solid density targets  

SciTech Connect (OSTI)

Isochoric heating of solid-density matter up to a few tens of eV is of interest for investigating astrophysical or inertial fusion scenarios. Such ultra-fast heating can be achieved via the energy deposition of short-pulse laser generated electrons. Here, we report on experimental measurements of this process by means of time- and space-resolved optical interferometry. Our results are found in reasonable agreement with a simple numerical model of fast electron-induced heating.

Antici, P. [Dipartimento SBAI, Università di Roma ‘‘La Sapienza,’’ Via Scarpa 14-16, 00161 Roma (Italy) [Dipartimento SBAI, Università di Roma ‘‘La Sapienza,’’ Via Scarpa 14-16, 00161 Roma (Italy); INRS-EMT, Varennes, Québec (Canada); Istituto Nazionale di Fisica Nucleare, Via E. Fermi, 40-00044 Frascati (Italy); LULI, École Polytechnique, CNRS, CEA, UPMC, route de Saclay, 91128 Palaiseau (France); Gremillet, L. [CEA, DAM, DIF, F-91297 Arpajon (France)] [CEA, DAM, DIF, F-91297 Arpajon (France); Grismayer, T. [GoLP/Instituto de Plasmas e Fusão Nuclear-Laboratório Associado, Instituto Superior Técnico, 1049-001 Lisboa (Portugal)] [GoLP/Instituto de Plasmas e Fusão Nuclear-Laboratório Associado, Instituto Superior Técnico, 1049-001 Lisboa (Portugal); Mora, P. [Centre de Physique Théorique, École Polytechnique, CNRS, 91128 Palaiseau (France)] [Centre de Physique Théorique, École Polytechnique, CNRS, 91128 Palaiseau (France); Audebert, P.; Man?ic, A.; Fuchs, J. [LULI, École Polytechnique, CNRS, CEA, UPMC, route de Saclay, 91128 Palaiseau (France)] [LULI, École Polytechnique, CNRS, CEA, UPMC, route de Saclay, 91128 Palaiseau (France); Borghesi, M.; Cecchetti, C. A. [School of Mathematics and Physics, The Queen's University, Belfast (United Kingdom)] [School of Mathematics and Physics, The Queen's University, Belfast (United Kingdom)

2013-12-15T23:59:59.000Z

273

Response of water vapor to interannual variations of SST: Results from NCAR Community Climate Model (CCM2)  

SciTech Connect (OSTI)

This paper very briefly documents the response of water vapor to interannual changes in sea surface temperature (SST) in two of the most frequently used climate models: the National Center for Atmospheric Research (NCAR) community climate model (CCM2) and the GFDL spectral model (R30). The corresponding results from radiosonde data are also presented for reference. A simple linear regression model is used to quantify the response of water vapor to changes in SST in the two simulations. Except for the negative response of water vapor over Australia, CCM2 simulates the major characteristics in the horizontal structure of the water vapor response shown in the radiosonde data. The negative response of water over Australia is also not well simulated by GFDL R30. In addition, GFDL R30 significantly underestimates the positive response over the Indian Ocean. The horizontal contrasts between the negative response over the western Pacific and the positive response over the central and eastern Pacific in the model simulations are larger than in the radiosonde data. The negative response in the subtropical region in CCM2 is more pronounced than in R30. Averaged over the tropics, CCM2 has a larger water vapor response in both the boundary layer and the upper troposphere than R30. The correlations between variations of water vapor in the upper troposphere and those at the surface level are also stronger in CCM2 than in R30. 2 refs., 5 figs.

Sun, De-Zheng [National Center For Atmospheric Research, Boulder, CO (United States)

1997-11-01T23:59:59.000Z

274

Offshore Code Comparison Collaboration within IEA Wind Task 23: Phase IV Results Regarding Floating Wind Turbine Modeling; Preprint  

SciTech Connect (OSTI)

Offshore wind turbines are designed and analyzed using comprehensive simulation codes that account for the coupled dynamics of the wind inflow, aerodynamics, elasticity, and controls of the turbine, along with the incident waves, sea current, hydrodynamics, and foundation dynamics of the support structure. This paper describes the latest findings of the code-to-code verification activities of the Offshore Code Comparison Collaboration, which operates under Subtask 2 of the International Energy Agency Wind Task 23. In the latest phase of the project, participants used an assortment of codes to model the coupled dynamic response of a 5-MW wind turbine installed on a floating spar buoy in 320 m of water. Code predictions were compared from load-case simulations selected to test different model features. The comparisons have resulted in a greater understanding of offshore floating wind turbine dynamics and modeling techniques, and better knowledge of the validity of various approximations. The lessons learned from this exercise have improved the participants' codes, thus improving the standard of offshore wind turbine modeling.

Jonkman, J.; Larsen, T.; Hansen, A.; Nygaard, T.; Maus, K.; Karimirad, M.; Gao, Z.; Moan, T.; Fylling, I.

2010-04-01T23:59:59.000Z

275

Enabling Detailed Energy Analyses via the Technology Performance Exchange: Preprint  

SciTech Connect (OSTI)

One of the key tenets to increasing adoption of energy efficiency solutions in the built environment is improving confidence in energy performance. Current industry practices make extensive use of predictive modeling, often via the use of sophisticated hourly or sub-hourly energy simulation programs, to account for site-specific parameters (e.g., climate zone, hours of operation, and space type) and arrive at a performance estimate. While such methods are highly precise, they invariably provide less than ideal accuracy due to a lack of high-quality, foundational energy performance input data. The Technology Performance Exchange was constructed to allow the transparent sharing of foundational, product-specific energy performance data, and leverages significant, external engineering efforts and a modular architecture to efficiently identify and codify the minimum information necessary to accurately predict product energy performance. This strongly-typed database resource represents a novel solution to a difficult and established problem. One of the most exciting benefits is the way in which the Technology Performance Exchange's application programming interface has been leveraged to integrate contributed foundational data into the Building Component Library. Via a series of scripts, data is automatically translated and parsed into the Building Component Library in a format that is immediately usable to the energy modeling community. This paper (1) presents a high-level overview of the project drivers and the structure of the Technology Performance Exchange; (2) offers a detailed examination of how technologies are incorporated and translated into powerful energy modeling code snippets; and (3) examines several benefits of this robust workflow.

Studer, D.; Fleming, K.; Lee, E.; Livingood, W.

2014-08-01T23:59:59.000Z

276

Two Studies Reveal Details of Lithium-Battery Function  

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

Two Studies Reveal Details of Lithium-Battery Function Print Our way of life is deeply intertwined with battery technologies that have enabled a mobile revolution powering cell...

277

azobenzene detailed mechanism: Topics by E-print Network  

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

Post Graduate Activities Detail & History Materials Science Websites Summary: Raytheon Systems Engineer Tucson AZ MENG Rockwell Collins Mechanical Engineer Sterling VA MENG...

278

The solar photospheric abundance of hafnium and thorium. Results from CO5BOLD 3D hydrodynamic model atmospheres  

E-Print Network [OSTI]

Context: The stable element hafnium (Hf) and the radioactive element thorium (Th) were recently suggested as a suitable pair for radioactive dating of stars. The applicability of this elemental pair needs to be established for stellar spectroscopy. Aims: We aim at a spectroscopic determination of the abundance of Hf and Th in the solar photosphere based on a \\cobold 3D hydrodynamical model atmosphere. We put this into a wider context by investigating 3D abundance corrections for a set of G- and F-type dwarfs. Method: High-resolution, high signal-to-noise solar spectra were compared to line synthesis calculations performed on a solar CO5BOLD model. For the other atmospheres, we compared synthetic spectra of CO5BOLD 3D and associated 1D models. Results: For Hf we find a photospheric abundance A(Hf)=0.87+-0.04, in good agreement with a previous analysis, based on 1D model atmospheres. The weak Th ii 401.9 nm line constitutes the only Th abundance indicator available in the solar spectrum. It lies in the red wing of an Ni-Fe blend exhibiting a non-negligible convective asymmetry. Accounting for the asymmetry-related additional absorption, we obtain A(Th)=0.09+-0.03, consistent with the meteoritic abundance, and about 0.1 dex lower than obtained in previous photospheric abundance determinations. Conclusions: Only for the second time, to our knowledge, has am non-negligible effect of convective line asymmetries on an abundance derivation been highlighted. Three-dimensional hydrodynamical simulations should be employed to measure Th abundances in dwarfs if similar blending is present, as in the solar case. In contrast, 3D effects on Hf abundances are small in G- to mid F-type dwarfs and sub-giants, and 1D model atmospheres can be conveniently used.

Elisabetta Caffau; L. Sbordone; H. -G. Ludwig; P. Bonifacio; M. Steffen; N. T. Behara

2008-03-25T23:59:59.000Z

279

Benchmark single-differential ionization cross section results for the {ital s}-wave model of electron-hydrogen scattering  

SciTech Connect (OSTI)

Exterior complex scaling enables one to compute the outgoing wave portion of the wave function for three charged particles without explicitly imposing the asymptotic boundary condition for three-body breakup. This technique is used in connection with a high-order finite difference scheme to provide numerically accurate single-differential ionization cross sections for the Temkin-Poet ({ital s}-wave) model of e-H scattering. These benchmark values are compared with results obtained from several recent close-coupling approaches that employ pseudostates to discretize the ionization continuum, but use a strictly two-body scattering formalism. {copyright} {ital 1999} {ital The American Physical Society}

Baertschy, M. [Department of Applied Science, University of California--Davis, Livermore, California 94550 (United States)] [Department of Applied Science, University of California--Davis, Livermore, California 94550 (United States); Rescigno, T.N. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)] [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Isaacs, W.A.; McCurdy, C.W. [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)] [Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

1999-07-01T23:59:59.000Z

280

Grounding-line migration in plan-view marine ice-sheet models: results of the ice2sea MISMIP3d intercomparison  

E-Print Network [OSTI]

models (SSA, A–HySSA) produce larger ice sheets than modelsplan-view ice-sheet models they produce different results.the Antarctic ice sheet should at least produce grounding-

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" 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

Flow Effects on Jet Energy Loss with Detailed Balance  

E-Print Network [OSTI]

In the presence of collective flow a new model potential describing the interaction of the hard jet with scattering centers is derived based on the static color-screened Yukawa potential. The flow effect on jet quenching with detailed balance is investigated in pQCD. It turns out, considering the collective flow with velocity $v_z$ along the jet direction, the collective flow decreases the LPM destructive interference comparing to that in the static medium. The gluon absorption plays a more important role in the moving medium. The collective flow increases the energy gain from gluon absorption, however, decreases the energy loss from gluon radiation, which is $(1 - v_z )$ times as that in the static medium to the first order of opacity. In the presence of collective flow, the second order in opacity correction is relatively small compared to the first order. So that the total effective energy loss is decreased. The flow dependence of the energy loss will affect the suppression of high $p_T$ hadron spectrum and anisotropy parameter $v_2$ in high-energy heavy-ion collisions.

Luan Cheng; Jia Liu; Enke Wang

2014-06-03T23:59:59.000Z

282

Detailed study of the nuclear dependence of the EMC effect and short-range correlations  

SciTech Connect (OSTI)

Background: The density of the nucleus has been important in explaining the nuclear dependence of the quark distributions, also known as the EMC effect, as well as the presence of high-momentum nucleons arising from short-range correlations (SRCs). Recent measurements of both of these effects on light nuclei have shown a clear deviation from simple density-dependent models. Purpose: A better understanding of the nuclear quark distributions and short-range correlations requires a careful examination of the experimental data on these effects to constrain models that attempt to describe these phenomena. Methods: We present a detailed analysis of the nuclear dependence of the EMC effect and the contribution of SRCs in nuclei, comparing to predictions and simple scaling models based on different pictures of the underlying physics. We also make a direct, quantitative comparison of the two effects to further examine the connection between these two observables related to nuclear structure. Results: We find that, with the inclusion of the new data on light nuclei, neither of these observables can be well explained by common assumptions for the nuclear dependence. The anomalous behavior of both effects in light nuclei is consistent with the idea that the EMC effect is driven by either the presence of high-density configurations in nuclei or the large virtuality of the high-momentum nucleons associated with these configurations. Conclusions: The unexpected nuclear dependence in the measurements of the EMC effect and SRC contributions appear to suggest that the local environment of the struck nucleon is the most relevant quantity for explaining these results. The common behavior suggests a connection between the two seemingly disparate phenomena, but the data do not yet allow for a clear preference between models which aim to explain this connection.

John Arrington, Aji Daniel, Donal Day, Nadia Fomin, David Gaskell, Patricia Solvignon

2012-12-01T23:59:59.000Z

283

Senior Systems Analyst-PeopleSoft Campus Solutions Posting Details  

E-Print Network [OSTI]

and emerging technologies. This position may lead and coordinate the design, development, and implementation assurance and testing activities required to maintain business solutions. This position reportsSenior Systems Analyst-PeopleSoft Campus Solutions Posting Details Posting Details Position Title

Liblit, Ben

284

E-Print Network 3.0 - analysis ii detailed Sample Search Results  

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

California, Merced Collection: Computer Technologies and Information Sciences 82 www.praxair.com Low Cost Hydrogen Summary: Recommendations Phase II Development Praxair HGS -...

285

Atomic Level Green-Kubo Stress Correlation Function for a Model Crystal: An Insight into Molecular Dynamics Results on a Model Liquid  

E-Print Network [OSTI]

In order to get insight into the connection between the vibrational dynamics and the atomic level Green-Kubo stress correlation function in liquids we consider this connection in a model crystal instead. Of course, vibrational dynamics in liquids and crystals are quite different and it is not expected that the results obtained on a model crystal should be valid for liquids. However, these considerations provide a benchmark to which the results of the previous molecular dynamics simulations can be compared. Thus, assuming that vibrations are plane waves, we derive analytical expressions for the atomic level stress correlation functions in the classical limit and analyze them. These results provide, in particular, a recipe for analysis of the atomic level stress correlation functions in Fourier space and extraction of the wavevector and frequency dependent information. We also evaluate the energies of the atomic level stresses. Obtained energies are significantly smaller than the energies that were obtained in MD simulations of liquids previously. This result suggests that the average energies of the atomic level stresses in liquids and glasses are largely determined by the structural disorder. We discuss this result in the context of equipartition of the atomic level stress energies. Analysis of the previously published data suggests that it is possible to speak about configurational and vibrational contributions to the average energies of the atomic level stresses in a glass state. However, this separation in a liquid state is problematic. We also consider peak broadening in the pair distribution function with increase of distance. We find that peak broadening (by ~40%) occurs due to the transverse vibrational modes, while contribution from the longitudinal modes does not change with distance. Finally, we introduce and consider atomic level transverse current correlation function.

V. A. Levashov

2014-06-23T23:59:59.000Z

286

Result Summary for the Area 5 Radioactive Waste Management Site Performance Assessment Model Version 4.110  

SciTech Connect (OSTI)

Results for Version 4.110 of the Area 5 Radioactive Waste Management Site (RWMS) performance assessment (PA) model are summarized. Version 4.110 includes the fiscal year (FY) 2010 inventory estimate, including a future inventory estimate. Version 4.110 was implemented in GoldSim 10.11(SP4). The following changes have been implemented since the last baseline model, Version 4.105: (1) Updated the inventory and disposal unit configurations with data through the end of FY 2010. (1) Implemented Federal Guidance Report 13 Supplemental CD dose conversion factors (U.S. Environmental Protection Agency, 1999). Version 4.110 PA results comply with air pathway and all-pathways annual total effective dose (TED) performance objectives (Tables 2 and 3, Figures 1 and 2). Air pathways results decrease moderately for all scenarios. The time of the maximum for the air pathway open rangeland scenario shifts from 1,000 to 100 years (y). All-pathways annual TED increases for all scenarios except the resident scenario. The maximum member of public all-pathways dose occurs at 1,000 y for the resident farmer scenario. The resident farmer dose was predominantly due to technetium-99 (Tc-99) (82 percent) and lead-210 (Pb-210) (13 percent). Pb-210 present at 1,000 y is produced predominantly by radioactive decay of uranium-234 (U-234) present at the time of disposal. All results for the postdrilling and intruder-agriculture scenarios comply with the performance objectives (Tables 4 and 5, Figures 3 and 4). The postdrilling intruder results are similar to Version 4.105 results. The intruder-agriculture results are similar to Version 4.105, except for the Pit 6 Radium Disposal Unit (RaDU). The intruder-agriculture result for the Shallow Land Burial (SLB) disposal units is a significant fraction of the performance objective and exceeds the performance objective at the 95th percentile. The intruder-agriculture dose is due predominantly to Tc-99 (75 percent) and U-238 (9.5 percent). The acute intruder scenario results comply with all performance objectives (Tables 6 and 7, Figures 5 and 6). The acute construction result for the SLB disposal units decreases significantly with this version. The maximum acute intruder dose occurs at 1,000 y for the SLB disposal units under the acute construction scenario. The acute intruder dose is caused by multiple radionuclides including U-238 (31 percent), Th-229 (28 percent), plutonium-239 (8.6 percent), U-233 (7.8 percent), and U-234 (6.7 percent). All results for radon-222 (Rn-222) flux density comply with the performance objective (Table 8, Figure 7). The mean Pit 13 RaDU flux density is close to the 0.74 Bq m{sup -2} s{sup -1} limit.

NSTec Environmental Management

2011-07-20T23:59:59.000Z

287

When the Details Matter – Sensitivities in PRA Calculations That Could Affect Risk-Informed Decision-Making  

SciTech Connect (OSTI)

As the U.S. Nuclear Regulatory Commission (NRC) continues its efforts to increase its use of risk information in decision making, the detailed, quantitative results of probabilistic risk assessment (PRA) calculations are coming under increased scrutiny. Where once analysts and users were not overly concerned with figure of merit variations that were less than an order of magnitude, now factors of two or even less can spark heated debate regarding modeling approaches and assumptions. The philosophical and policy-related aspects of this situation are well-recognized by the PRA community. On the other hand, the technical implications for PRA methods and modeling have not been as widely discussed. This paper illustrates the potential numerical effects of choices as to the details of models and methods for parameter estimation with three examples: 1) the selection of the time period data for parameter estimation, and issues related to component boundary and failure mode definitions; 2) the selection of alternative diffuse prior distributions, including the constrained noninformative prior distribution, in Bayesian parameter estimation; and 3) the impact of uncertainty in calculations for recovery of offsite power.

Dana L. Kelly; Nathan O. Siu

2010-06-01T23:59:59.000Z

288

Methodology and results of the impacts of modeling electric utilities ; a comparative evaluation of MEMM and REM  

E-Print Network [OSTI]

This study compares two models of the U.S. electric utility industry including the EIA's electric utility submodel in the Midterm Energy Market Model (MEMM), and the Baughman-Joskow Regionalized Electricity Model (REM). ...

Baughman, Martin L.

1981-01-01T23:59:59.000Z

289

Habitability of Earth-like planets with high obliquity and eccentric orbits: results from a general circulation model  

E-Print Network [OSTI]

We explore the implications of seasonal variability for the habitability of Earth-like planets as determined by the two parameters polar obliquity and orbital eccentricity. Commonly, the outer boundary of the habitable zone (HZ) is set by a completely frozen planet, or snowball state. Using a general circulation model coupled to a thermodynamic sea-ice model, our results show that seasonal variability can extend this outer limit of the HZ from 1.03 AU (no seasonal variability) to a maximum of 1.69 AU. Also the multistability property of planets close to the outer edge of the HZ is influenced by seasonal variability. Cold states extend far into the HZ for non-oblique planets. On highly oblique planets, cold states can also allow for habitable regions, which highlights the sufficient but not necessary condition of a warm climate state for habitability. While the effect of obliquity on the extent of the HZ is comparatively small on circular orbits, it becomes highly relevant on eccentric orbits. Our experiments ...

Linsenmeier, Manuel; Lucarini, Valerio

2014-01-01T23:59:59.000Z

290

Human Factors Considerations in New Nuclear Power Plants: Detailed Analysis.  

SciTech Connect (OSTI)

This Nuclear Regulatory Commission (NRC) sponsored study has identified human-performance issues in new and advanced nuclear power plants. To identify the issues, current industry developments and trends were evaluated in the areas of reactor technology, instrumentation and control technology, human-system integration technology, and human factors engineering (HFE) methods and tools. The issues were organized into seven high-level HFE topic areas: Role of Personnel and Automation, Staffing and Training, Normal Operations Management, Disturbance and Emergency Management, Maintenance and Change Management, Plant Design and Construction, and HFE Methods and Tools. The issues where then prioritized into four categories using a 'Phenomena Identification and Ranking Table' methodology based on evaluations provided by 14 independent subject matter experts. The subject matter experts were knowledgeable in a variety of disciplines. Vendors, utilities, research organizations and regulators all participated. Twenty issues were categorized into the top priority category. This Brookhaven National Laboratory (BNL) technical report provides the detailed methodology, issue analysis, and results. A summary of the results of this study can be found in NUREG/CR-6947. The research performed for this project has identified a large number of human-performance issues for new control stations and new nuclear power plant designs. The information gathered in this project can serve as input to the development of a long-term strategy and plan for addressing human performance in these areas through regulatory research. Addressing human-performance issues will provide the technical basis from which regulatory review guidance can be developed to meet these challenges. The availability of this review guidance will help set clear expectations for how the NRC staff will evaluate new designs, reduce regulatory uncertainty, and provide a well-defined path to new nuclear power plant licensing.

OHara,J.; Higgins, J.; Brown, W.; Fink, R.

2008-02-14T23:59:59.000Z

291

Fort Drum integrated resource assessment. Volume 2, Baseline detail  

SciTech Connect (OSTI)

The US Army Forces Command (FORSCOM) has tasked the Pacific Northwest Laboratory (PNL) as the lead laboratory supporting the US Department of Energy (DOE) Federal Energy Management Program`s mission to identify, evaluate, and assist in acquiring all cost-effective energy projects at Fort Drum. This is a model program PNL is designing for federal customers served by the Niagara Mohawk Power Company. It will identify and evaluate all electric and fossil fuel cost-effective energy projects; develop a schedule at each installation for project acquisition considering project type, size, timing, and capital requirements, as well as energy and dollar savings; and secure 100% of the financing required to implement electric energy efficiency projects from Niagara Mohawk and have Niagara Mohawk procure the necessary contractors to perform detailed audits and install the technologies. This report documents the assessment of baseline energy use at one of Niagara Mohawk`s primary federal facilities, the FORSCOM Fort Drum facility located near Watertown, New York. It is a companion report to Volume 1, the Executive Summary, and Volume 3, the Resource Assessment. This analysis examines the characteristics of electric, gas, oil, propane, coal, and purchased thermal capacity use for fiscal year (FY) 1990. It records energy-use intensities for the facilities at Fort Drum by building type and energy end use. It also breaks down building energy consumption by fuel type, energy end use, and building type. A complete energy consumption reconciliation is presented that includes the accounting of all energy use among buildings, utilities, central systems, and applicable losses.

Dixon, D.R.; Armstrong, P.R.; Brodrick, J.R.; Daellenbach, K.K.; Di Massa, F.V.; Keller, J.M.; Richman, E.E.; Sullivan, G.P.; Wahlstrom, R.R.

1992-12-01T23:59:59.000Z

292

Detailed Description of Key NIF Milestones for NNSA Description  

E-Print Network [OSTI]

1 Detailed Description of Key NIF Milestones for NNSA Short Description NIC EP Rev 4.0 Approved = Milestone Reporting Tool, which NNSA uses to support quarterly status reporting of NIC Level 1-2 milestones

293

CMPE 185 Spring 1998 Syllabus 1 1 Administrative details  

E-Print Network [OSTI]

CMPE 185 Spring 1998 Syllabus 1 Syllabus 1 Administrative details Location and time Kresge 327, MWF of the quarter, and 10% on in­class work, Karplus & Larrabee Info 1 #12; 2 Syllabus CMPE 185 Spring 1998

Karplus, Kevin

294

CMPE 185 Fall 1999 Syllabus 1 1 Administrative details  

E-Print Network [OSTI]

CMPE 185 Fall 1999 Syllabus 1 Syllabus 1 Administrative details Location and time Kresge 327, MWF 2 Syllabus CMPE 185 Fall 1999 4 Special guest lecturers I may arrange to have some guest lectures

Karplus, Kevin

295

CMPE 185 Winter 1999 Syllabus 1 1 Administrative details  

E-Print Network [OSTI]

CMPE 185 Winter 1999 Syllabus 1 Syllabus 1 Administrative details Location and time Porter 144, MWF). Everything must be turned in by the last day of class, Friday March 12. Karplus Info 1 #12; 2 Syllabus CMPE

Karplus, Kevin

296

CMPE 185 Fall 2000 Syllabus 1 1 Administrative details  

E-Print Network [OSTI]

CMPE 185 Fall 2000 Syllabus 1 Syllabus 1 Administrative details Location and time Kresge 327, MWF 2, and need to do the grading mostly on Dec 2. Karplus Info 1 #12; 2 Syllabus CMPE 185 Fall 2000 4 Special

Karplus, Kevin

297

Modeling  

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

sion effects. We show the result of a test case, and compare it to the result without surface tension. The model describes droplet formation nicely. Application The ARRA-funded...

298

An improved model for multiple effect distillation  

E-Print Network [OSTI]

Increasing global demand for fresh water is driving research and development of advanced desalination technologies. As a result, a detailed model of multiple effect distillation (MED) is developed that is flexible, simple ...

Mistry, Karan H.

299

Details of Forestry Commission and DARDNI Plant Health Contacts for UK Points of Entry UK Principle Ports Contacts Contact Details  

E-Print Network [OSTI]

Ports Contacts Contact Details Felixstowe Richard Fergusson Pat Mitchell Philip Evans Roland Fry Fax Other GB Ports John Hunter Joanne McAuley Fax 0131-314-6148 Tel : 0131-314-6182 or Tel : 0131

300

Health effects models for nuclear power plant accident consequence analysis. Modification of models resulting from addition of effects of exposure to alpha-emitting radionuclides: Revision 1, Part 2, Scientific bases for health effects models, Addendum 2  

SciTech Connect (OSTI)

The Nuclear Regulatory Commission (NRC) has sponsored several studies to identify and quantify, through the use of models, the potential health effects of accidental releases of radionuclides from nuclear power plants. The Reactor Safety Study provided the basis for most of the earlier estimates related to these health effects. Subsequent efforts by NRC-supported groups resulted in improved health effects models that were published in the report entitled {open_quotes}Health Effects Models for Nuclear Power Plant Consequence Analysis{close_quotes}, NUREG/CR-4214, 1985 and revised further in the 1989 report NUREG/CR-4214, Rev. 1, Part 2. The health effects models presented in the 1989 NUREG/CR-4214 report were developed for exposure to low-linear energy transfer (LET) (beta and gamma) radiation based on the best scientific information available at that time. Since the 1989 report was published, two addenda to that report have been prepared to (1) incorporate other scientific information related to low-LET health effects models and (2) extend the models to consider the possible health consequences of the addition of alpha-emitting radionuclides to the exposure source term. The first addendum report, entitled {open_quotes}Health Effects Models for Nuclear Power Plant Accident Consequence Analysis, Modifications of Models Resulting from Recent Reports on Health Effects of Ionizing Radiation, Low LET Radiation, Part 2: Scientific Bases for Health Effects Models,{close_quotes} was published in 1991 as NUREG/CR-4214, Rev. 1, Part 2, Addendum 1. This second addendum addresses the possibility that some fraction of the accident source term from an operating nuclear power plant comprises alpha-emitting radionuclides. Consideration of chronic high-LET exposure from alpha radiation as well as acute and chronic exposure to low-LET beta and gamma radiations is a reasonable extension of the health effects model.

Abrahamson, S. [Wisconsin Univ., Madison, WI (United States); Bender, M.A. [Brookhaven National Lab., Upton, NY (United States); Boecker, B.B.; Scott, B.R. [Lovelace Biomedical and Environmental Research Inst., Albuquerque, NM (United States). Inhalation Toxicology Research Inst.; Gilbert, E.S. [Pacific Northwest Lab., Richland, WA (United States)

1993-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" 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

Preliminary Model Comparison Results From the Sim-SEQ Project Using TOUGH2, STOMP, Eclipse, and VESA Approach  

SciTech Connect (OSTI)

Sim-SEQ is an international initiative on model comparison for geologic carbon sequestration (GCS), with an objective to understand and, if possible, quantify model uncertainties. Model comparison efforts in Sim-SEQ are initially limited to one specific field test site, hereafter referred to as the Sim-SEQ Study site (or S-3 site). Within Sim-SEQ, different modeling teams are developing conceptual models of CO2 injection at the S-3 site. One of the conceptual models, developed by the LBNL team, is based on TOUGH2/EOS7C. In this paper, we present some preliminary model predictions of the S-3 site using the TOUGH2/EOS7C simulator. We also compare the predictions of the TOUGH2 simulator with three other conceptual models, developed by three different organizations, of the S-3 site.

Mukhopadhyay, Sumit; Doughty, Christine A.; Bacon, Diana H.; Bacci, Giacomo; Govindan, Rajesh; Shi, Ji-Quan; Gasda, Sarah E.; Ramanathan, Ramya; Nicot, Jean-Philippe; Hosseini, Seyyed; Birkholzer, Jens

2013-11-01T23:59:59.000Z

302

Sandia National Laboratories: 2013 PV Systems Symposium Details  

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

Generator Modeling Radar Friendly Blades Special Programs Techno-Economic Modeling, Analysis, and Support Analysis, Modeling, Cost of Energy, and Policy Impact: Wind Vision 2014...

303

Steel-framed buildings: Impacts of wall detail configurations on the whole wall thermal performance  

SciTech Connect (OSTI)

The main objective of this paper is the influence of architectural wall details on the whole wall thermal performance. Whole wall thermal performance analysis was performed for six light gage steel-framed wall systems (some with wood components). For each wall system, all wall details were simulated using calibrated 3-D finite difference computer modeling. The thermal performance of the six steel-framed wall systems included various system details and the whole wall system thermal performance for a typical single-story ranch house. Currently, predicted heat losses through building walls are typically based on measurements of the wall system clear wall area using test methods such as ASTM C 236 or are calculated by one of the procedures recommended in the ASHRAE Handbook of Fundamentals that often is carried out for the clear wall area exclusively. In this paper, clear wall area is defined as the part of the wall system that is free of thermal anomalies due to building envelope details or thermally unaffected by intersections with other surfaces of the building envelope. Clear wall experiments or calculations normally do not include the effects of building envelope details such as corners, window and door openings, and structural intersections with roofs, floors, ceilings, and other walls. In steel-framed wall systems, these details typically consist of much more structural components than the clear wall. For this situation, the thermal properties measured or calculated for the clear wall area do not adequately represent the total wall system thermal performance. Factors that would impact the ability of today`s standard practice to accurately predict the total wall system thermal performance are the accuracy of the calculation methods, the area of the total wall that is clear wall, and the quantity and thermal performance of the various wall system details.

Kosny, J.; Desjarlais, A.O.; Christian, J.E.

1998-06-01T23:59:59.000Z

304

Crucial role of detailed function, task, timeline, link and human vulnerability analyses in HRA  

SciTech Connect (OSTI)

This paper addresses one major cause for large uncertainties in human reliability analysis (HRA) results, that is, an absence of detailed function, task, timeline, link and human vulnerability analyses. All too often this crucial step in the HRA process is done in a cursory fashion using word of mouth or written procedures which themselves may incompletely or inaccurately represent the human action sequences and human error vulnerabilities being analyzed. The paper examines the potential contributions these detailed analyses can make in achieving quantitative and qualitative HRA results which are: (1) creditable, that is, minimize uncertainty, (2) auditable, that is, systematically linking quantitative results and qualitative information from which the results are derived, (3) capable of supporting root cause analyses on human reliability factors determined to be major contributors to risk, and (4) capable of repeated measures and being combined with similar results from other analyses to examine HRA issues transcending individual systems and facilities. Based on experience analyzing test and commercial nuclear reactors, and medical applications of nuclear technology, an iterative process is suggested for doing detailed function, task, timeline, link and human vulnerability analyses using documentation reviews, open-ended and structured interviews, direct observations, and group techniques. Finally, the paper concludes that detailed analyses done in this manner by knowledgeable human factors practitioners, can contribute significantly to the credibility, auditability, causal factor analysis, and combining goals of the HRA.

Ryan, T.G.; Haney, L.N.; Ostrom, L.T.

1992-10-01T23:59:59.000Z

305

Tile-based Level of Detail for the Parallel Age  

SciTech Connect (OSTI)

Today's PCs incorporate multiple CPUs and GPUs and are easily arranged in clusters for high-performance, interactive graphics. We present an approach based on hierarchical, screen-space tiles to parallelizing rendering with level of detail. Adapt tiles, render tiles, and machine tiles are associated with CPUs, GPUs, and PCs, respectively, to efficiently parallelize the workload with good resource utilization. Adaptive tile sizes provide load balancing while our level of detail system allows total and independent management of the load on CPUs and GPUs. We demonstrate our approach on parallel configurations consisting of both single PCs and a cluster of PCs.

Niski, K; Cohen, J D

2007-08-15T23:59:59.000Z

306

Fort Stewart integrated resource assessment. Volume 2, Baseline detail  

SciTech Connect (OSTI)

This report documents the assessment of baseline energy use at Fort Stewart, a US Army Forces Command facility located near Savannah, Georgia. This is a companion report to Volume 1, Executive Summary, and Volume 3, Integrated Resource Assessment. The US Army Forces Command (FORSCOM) tasked Pacific Northwest Laboratory (PNL) to identify, evaluate, and assist in acquiring all cost-effective energy projects at Fort Stewart. PNL, in support of the US Department of Energy (DOE) Federal Energy Management Program (FEMP), has designed a model program applicable to the federal sector for this purpose. The model program (1) identifies and evaluates all cost-effective energy projects; (2) develops a schedule at each installation for project acquisition considering project type, size, timing, and capital requirements, as well as energy and dollar savings; and (3) targets 100% of the financing required to implement energy efficiency projects. PNL applied this model program to Fort Stewart. The analysis examines the characteristics of electric, natural gas, oil, propane, and wood chip use for fiscal year (FY) 1990. The results include energy-use intensities for the facilities at Fort Stewart by building type, fuel type, and energy end use. A complete energy consumption reconciliation is presented that accounts for the distribution of all major energy uses and losses among buildings, utilities, and central systems.

Keller, J.M.; Sullivan, G.P.; Wahlstrom, R.R.; Larson, L.L.

1993-08-01T23:59:59.000Z

307

Assimilation of surface data in a one-dimensional physical-biogeochemical model of the surface ocean: 1. Method and preliminary results  

SciTech Connect (OSTI)

This paper describes a method to estimate parameters of complex ocean carbon cycle models and to estimate carbon fluxes other than primary production from satellite data. A one-dimensional vertical model, which couples the physics of the ocean mixed layer and biogeochemical processes, was used to simulate the carbon cycle. Variational assimilation was applied to globally adjust the model solution. Consistent results were found for the grazing rate, the phytoplankton mortality rate, and the minimum concentration of zooplankton in winter. Some carbon fluxes appeared to be robustly constrained; however, primary production is apparently underestimated. The study results suggest that a simplified biological model would adequately the seasonal evolution of surface chlorophyll concentration, and would be more adapted to transform satellite data into carbon fluxes. Analysis of model behavior during assimilation experiments also provided information for other possible simplifications of the trophic model. 49 refs., 17 figs., 5 tabs.

Prunet, P.; Minster, J.F. [Laboratoire CNES-CNRS, Toulouse (France)] [Laboratoire CNES-CNRS, Toulouse (France); Ruiz-Pino, D. [Universite Pierre et Marie Curie, Paris (France)] [Universite Pierre et Marie Curie, Paris (France)

1996-03-01T23:59:59.000Z

308

Detailed Geophysical Fault Characterization in Yucca Flat, Nevada Test Site, Nevada  

SciTech Connect (OSTI)

Yucca Flat is a topographic and structural basin in the northeastern part of the Nevada Test Site (NTS) in Nye County, Nevada. Between the years 1951 and 1992, 659 underground nuclear tests took place in Yucca Flat; most were conducted in large, vertical excavations that penetrated alluvium and the underlying Cenozoic volcanic rocks. Radioactive and other potential chemical contaminants at the NTS are the subject of a long-term program of investigation and remediation by the U.S. Department of Energy (DOE), National Nuclear Security Administration, Nevada Site Office, under its Environmental Restoration Program. As part of the program, the DOE seeks to assess the extent of contamination and to evaluate the potential risks to humans and the environment from byproducts of weapons testing. To accomplish this objective, the DOE Environmental Restoration Program is constructing and calibrating a ground-water flow model to predict hydrologic flow in Yucca Flat as part of an effort to quantify the subsurface hydrology of the Nevada Test Site. A necessary part of calibrating and evaluating a model of the flow system is an understanding of the location and characteristics of faults that may influence ground-water flow. In addition, knowledge of fault-zone architecture and physical properties is a fundamental component of the containment of the contamination from underground nuclear tests, should such testing ever resume at the Nevada Test Site. The goal of the present investigation is to develop a detailed understanding of the geometry and physical properties of fault zones in Yucca Flat. This study was designed to investigate faults in greater detail and to characterize fault geometry, the presence of fault splays, and the fault-zone width. Integrated geological and geophysical studies have been designed and implemented to work toward this goal. This report describes the geophysical surveys conducted near two drill holes in Yucca Flat, the data analyses performed, and the integrated interpretations developed from the suite of geophysical methodologies utilized in this investigation. Data collection for this activity started in the spring of 2005 and continued into 2006. A suite of electrical geophysical surveys were run in combination with ground magnetic surveys; these surveys resulted in high-resolution subsurface data that portray subsurface fault geometry at the two sites and have identified structures not readily apparent from surface geologic mapping, potential field geophysical data, or surface effects fracture maps.

Theodore H. Asch; Donald Sweetkind; Bethany L. Burton; Erin L. Wallin

2009-02-10T23:59:59.000Z

309

urrent practice in the vehicle dynamics and control community is to validate detailed  

E-Print Network [OSTI]

the cost and inherent danger in testing aggressive vehicle controllers using full-sized vehicles, a scaleC urrent practice in the vehicle dynamics and control community is to validate detailed simulation results using a full-sized vehicle. For university-based research, this ap- proach is often prohibitively

Brennan, Sean

310

The Multi-Stage Investment Timing Game in Offshore Petroleum Production: Preliminary results from an econometric model  

E-Print Network [OSTI]

me to understand the geology of oil production. ShelbyGeology or economics? Testing models of irreversible investment using North Sea oil

Lin, C.-Y. Cynthia

2007-01-01T23:59:59.000Z

311

Determining Plutonium Mass in Spent Fuel with Nondestructive Assay Techniques -- Preliminary Modeling Results Emphasizing Integration among Techniques  

SciTech Connect (OSTI)

There are a variety of motivations for quantifying Pu in spent (used) fuel assemblies by means of nondestructive assay (NDA) including the following: strengthen the capabilities of the International Atomic Energy Agencies to safeguards nuclear facilities, quantifying shipper/receiver difference, determining the input accountability value at reprocessing facilities and providing quantitative input to burnup credit determination for repositories. For the purpose of determining the Pu mass in spent fuel assemblies, twelve NDA techniques were identified that provide information about the composition of an assembly. A key point motivating the present research path is the realization that none of these techniques, in isolation, is capable of both (1) quantifying the elemental Pu mass of an assembly and (2) detecting the diversion of a significant number of pins. As such, the focus of this work is determining how to best integrate 2 or 3 techniques into a system that can quantify elemental Pu and to assess how well this system can detect material diversion. Furthermore, it is important economically to down-select among the various techniques before advancing to the experimental phase. In order to achieve this dual goal of integration and down-selection, a Monte Carlo library of PWR assemblies was created and is described in another paper at Global 2009 (Fensin et al.). The research presented here emphasizes integration among techniques. An overview of a five year research plan starting in 2009 is given. Preliminary modeling results for the Monte Carlo assembly library are presented for 3 NDA techniques: Delayed Neutrons, Differential Die-Away, and Nuclear Resonance Fluorescence. As part of the focus on integration, the concept of"Pu isotopic correlation" is discussed and the role of cooling time determination.

Tobin, S. J.; Fensin, M. L.; Ludewigt, B. A.; Menlove, H. O.; Quiter, B. J.; Sandoval, N. P.; Swinhoe, M. T.; Thompson, S. J.

2009-08-03T23:59:59.000Z

312

EMIS Quick User Guide Search page (details on page 2)  

E-Print Network [OSTI]

search terms in foreign languages You can enter search terms in foreign languages by: - Using your: Please note that we have a Cyrillic and Arabic keyboards available through the Search page. EnteringEMIS Quick User Guide Search page (details on page 2) The News page: Access the latest news

Barthelat, Francois

313

Detailed Information on Proposal for US-Monbusho Collaoration  

E-Print Network [OSTI]

C / He /Ceramic Breeder / Be material system - Key: Measure interface thermal resistance at the Si be significant (T-breeding) · Beryllium (typically): Tmax thermal resistance between ceramicDetailed Information on Proposal for UNICEX-Hi US-Monbusho Collaoration Thermal

Abdou, Mohamed

314

Detailed Execution Planning for Large Oil and Gas Construction Projects  

E-Print Network [OSTI]

Detailed Execution Planning for Large Oil and Gas Construction Projects Presented by James Lozon, University of Calgary There is currently 55.8 billion dollars worth of large oil and gas construction projects scheduled or underway in the province of Alberta. Recently, large capital oil and gas projects

Calgary, University of

315

Results from the Carbon-Land Model Intercomparison Project (C-LAMP) and Availability of the Data on the Earth System Grid (ESG)  

SciTech Connect (OSTI)

This paper describes the Carbon-Land Model Intercomparison Project (C-LAMP) being carried out through a collaboration between the Community Climate System Model (CCSM) Biogeochemistry Working Group, a DOE SciDAC-2 project, and the DOE Program for Climate Model Diagnosis and Intercomparison (PCMDI). The goal of the project is to intercompare terrestrial biogeochemistry models running within the CCSM framework to determine the best set of processes to include in future versions of CCSM. As a part of the project, observational datasets are being collected and used to score the scientific performance of these models following a well-defined set of metrics. In addition, metadata standards for terrestrial biosphere models are being developed to support archival and distribution of the C-LAMP model output via the Earth System Grid (ESG). Progress toward completion of this project and preliminary results from the first set of experiments are reported.

Hoffman, Forrest M [ORNL; Covey, Curtis [Lawrence Livermore National Laboratory (LLNL); Fung, Inez [University of California, Berkeley; Randerson, Jim [University of California, Irvine; Thornton, Peter [National Center for Atmospheric Research (NCAR); Lee, Jeff [National Center for Atmospheric Research (NCAR); Rosenbloom, Nan [National Center for Atmospheric Research (NCAR); Stockli, Reto [Colorado State University, Fort Collins; Running, Steven [University of Montana, Missoula; Bernholdt, David E [ORNL; Williams, Dean [Lawrence Livermore National Laboratory (LLNL)

2007-01-01T23:59:59.000Z

316

Reduced Form of Detailed Modeling of Wind Transmission and Intermittency for Use in Other Models: Preprint  

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 -the Mid-Infrared at 278, 298,NIST 800-53 RevisionDivisionReduced intermittency in9

317

Comparison of a One-Dimensional Model of a High-Temperature Solid-Oxide Electrolysis Stack with CFD and Experimental Results  

SciTech Connect (OSTI)

A one-dimensional model has been developed to predict the thermal and electrochemical behavior of a high-temperature steam electrolysis stack. This electrolyzer model allows for the determination of the average Nernst potential, cell operating voltage, gas outlet temperatures, and electrolyzer efficiency for any specified inlet gas flow rates, current density, cell active area, and external heat loss or gain. The model includes a temperature-dependent area-specific resistance (ASR) that accounts for the significant increase in electrolyte ionic conductivity that occurs with increasing temperature. Model predictions are shown to compare favorably with results obtained from a fully 3-D computational fluid dynamics model. The one-dimensional model was also employed to demonstrate the expected trends in electrolyzer performance over a range of operating conditions including isothermal, adiabatic, constant steam utilization, constant flow rate, and the effects of operating temperature.

J. E. O'Brien; C. M. Stoots; G. L. Hawkes

2005-11-01T23:59:59.000Z

318

Deformed shell model results for neutrinoless double beta decay of nuclei in A=60-90 region  

E-Print Network [OSTI]

Nuclear transition matrix elements (NTME) for the neutrinoless double beta decay of $^{70}$Zn, $^{80}$Se and $^{82}$Se nuclei are calculated within the framework of the deformed shell model based on Hartree-Fock states. For $^{70}$Zn, jj44b interaction in $^{2}p_{3/2}$, $^{1}f_{5/2}$, $^{2}p_{1/2}$ and $^{1}g_{9/2}$ space with $^{56}$Ni as the core is employed. However, for $^{80}$Se and $^{82}$Se nuclei, a modified Kuo interaction with the above core and model space are employed. Most of our calculations in this region were performed with this effective interaction. However, jj44b interaction has been found to be better for $^{70}$Zn. The above model space was used in many recent shell model and interacting boson model calculations for nuclei in this region. After ensuring that DSM gives good description of the spectroscopic properties of low-lying levels in these three nuclei considered, the NTME are calculated. The deduced half-lives with these NTME, assuming neutrino mass is 1 eV, are $1.1 \\times 10^{26}$ yr, $2.3 \\times 10^{27}$ yr and $2.2 \\times 10^{24}$ yr for $^{70}$Zn, $^{80}$Se and $^{82}$Se, respectively.

R. Sahu; V. K. B. Kota

2015-03-20T23:59:59.000Z

319

Carbon-nitrogen interactions regulate climate-carbon cycle feedbacks: results from an atmosphere-ocean general circulation model  

E-Print Network [OSTI]

2009 P. E. Thornton et al. : Carbon-nitrogen interactionsregulate climate-carbon cycle feedbacks Monfray, P. ,T. H. : A global ocean carbon climatology: Results from

2009-01-01T23:59:59.000Z

320

System Advisor Model: Flat Plate Photovoltaic Performance Modeling Validation Report  

SciTech Connect (OSTI)

The System Advisor Model (SAM) is a free software tool that performs detailed analysis of both system performance and system financing for a variety of renewable energy technologies. This report provides detailed validation of the SAM flat plate photovoltaic performance model by comparing SAM-modeled PV system generation data to actual measured production data for nine PV systems ranging from 75 kW to greater than 25 MW in size. The results show strong agreement between SAM predictions and field data, with annualized prediction error below 3% for all fixed tilt cases and below 8% for all one axis tracked cases. The analysis concludes that snow cover and system outages are the primary sources of disagreement, and other deviations resulting from seasonal biases in the irradiation models and one axis tracking issues are discussed in detail.

Freeman, J.; Whitmore, J.; Kaffine, L.; Blair, N.; Dobos, A. P.

2013-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" 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

Detailed spectroscopic analysis of SN 1987A: The distance to the LMC using the SEAM method  

SciTech Connect (OSTI)

Supernova 1987A remains the most well-studied supernova to date. Observations produced excellent broad-band photometric and spectroscopic coverage over a wide wavelength range at all epochs. We model the observed spectra from Day 1 to Day 81 using a hydrodynamical model. We show that good agreement can be obtained at times up to about 60 days, if we allow for extended nickel mixing. Later than about 60 days the observed Balmer lines become stronger than our models can reproduce. We show that this is likely due to a more complicated distribution of gamma-rays than we allow for in our spherically symmetric calculations. We present synthetic light curves in UBVRIJHK and a synthetic bolometric light curve. Using this broad baseline of detailed spectroscopic models we find a distance modulus mu = 18.5 +/- 0.2 using the SEAM method of determining distances to supernovae. We find that the explosion time agrees with that of the neutrino burst and is constrained at 68 percent confidence to within +/- 0.9 days. We argue that the weak Balmer lines of our detailed model calculations casts doubt on the accuracy of the purely photometric EPM method. We also suggest that Type IIP supernovae will be most useful as distance indicators at early times due to a variety of effects.

Mitchell, Robert C.; Baron, E.; Branch, David; Hauschildt, Peter H.; Nugent, Peter E.; Lundqvist, Peter; Blinnikov, Sergei; Pun, Chun S.J.

2002-05-21T23:59:59.000Z

322

Detailed balance limit of power conversion efficiency for organic photovoltaics  

SciTech Connect (OSTI)

A fundamental difference between inorganic photovoltaic (IPV) and organic photovoltaic (OPV) cells is that charges are generated at the interface in OPV cells, while free charges can be generated in the bulk in IPV cells. In OPV cells, charge generation involves intrinsic energy losses to dissociate excitons at the interface between the donor and acceptor. By taking into account the energy losses, we show the theoretical limits of the power conversion efficiency set by radiative recombination of the carriers on the basis of the detailed balance relation between radiation from the cell and black-body radiation.

Seki, Kazuhiko, E-mail: k-seki@aist.go.jp [NRI, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565 (Japan)] [NRI, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565 (Japan); Furube, Akihiro [RIIF, AIST Tsukuba Central 2, Umezono 1-1-1, Tsukuba, Ibaraki 305-8568 (Japan)] [RIIF, AIST Tsukuba Central 2, Umezono 1-1-1, Tsukuba, Ibaraki 305-8568 (Japan); Yoshida, Yuji [RCPVT, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565 (Japan)] [RCPVT, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565 (Japan)

2013-12-16T23:59:59.000Z

323

Detail Shot Of Mira | Argonne Leadership Computing Facility  

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 Newcatalyst phasesData FilesShape, Density, andagingabout InfluenzaDetail Shot Of

324

Detailed Characterization of Particulates Emitted by Pre-Commercial  

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 Newcatalyst phasesData FilesShape, Density, andagingabout InfluenzaDetail Shot

325

New Measurement Explores Fine Details of Proton Structure | Jefferson Lab  

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 the Contributions andDataNational Library of1,DepartmentMeasurement Explores Fine Details

326

Buildings and Energy in the 80's -- Detailed Tables  

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

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) " ,"ClickPipelines AboutDecemberSteam Coal Import CostsLiquidsYearReserves (Billion5:July 22, 20131Detailed

327

Electric Utility Sales and Revenue - EIA-826 detailed data file  

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

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) " ,"ClickPipelines AboutDecember 2005 (Thousand9,0, 1997Environment > Voluntary826 detailed data The Form

328

Blundell 2 Power Plant Details | 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 NoPublic Utilities Address: 160Benin: Energy ResourcesJersey:formBlue Energy Address:Bluestem Electric CoopDetails

329

Two Studies Reveal Details of Lithium-Battery Function  

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 SecurityTensile Strain Switched Ferromagnetism in Layeredof Energy Two CompaniesTwo Studies Reveal Details of

330

Two Studies Reveal Details of Lithium-Battery Function  

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 SecurityTensile Strain Switched Ferromagnetism in Layeredof Energy Two CompaniesTwo Studies Reveal Details ofTwo

331

Atomistic Details of the Associative Phosphodiester Cleavage in Human  

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 to someone byDear Friend,ArthurMaterialsRibonuclease H. | EMSL Details

332

Sandia National Laboratories: 2014 PV Systems Symposium Details  

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 -the Mid-Infrared0 ResourceAwardsSafeguards andSan$0.06 per09Engineer AwardDetails

333

The Role of Comprehensive Detailed Chemical Kinetic Reaction Mechanisms in Combustion Research  

SciTech Connect (OSTI)

Recent developments by the authors in the field of comprehensive detailed chemical kinetic reaction mechanisms for hydrocarbon fuels are reviewed. Examples are given of how these mechanisms provide fundamental chemical insights into a range of combustion applications. Practical combustion consists primarily of chemical heat release from reactions between a fuel and an oxidizer, and computer simulations of practical combustion systems have become an essential tool of combustion research (Westbrook et al., 2005). At the heart of most combustion simulations, the chemical kinetic submodel frequently is the most detailed, complex and computationally costly part of a system model. Historically, the chemical submodel equations are solved using time-implicit numerical algorithms, due to the extreme stiffness of the coupled rate equations, with a computational cost that varies roughly with the cube of the number of chemical species in the model. While early mechanisms (c. 1980) for apparently simple fuels such as methane (Warnatz, 1980) or methanol (Westbrook and Dryer, 1979) included perhaps 25 species, current detailed mechanisms for much larger, more complex fuels such as hexadecane (Fournet et al., 2001; Ristori et al., 2001; Westbrook et al., 2008) or methyl ester methyl decanoate (Herbinet et al., 2008) have as many as 2000 or even 3000 species. Rapid growth in capabilities of modern computers has been an essential feature in this rapid growth in the size and complexity of chemical kinetic reaction mechanisms.

Westbrook, C K; Pitz, W J; Curran, H J; Mehl, M

2008-07-16T23:59:59.000Z

334

Diffusive transport without detailed balance in motile bacteria: Does microbiology need statistical physics?  

E-Print Network [OSTI]

Microbiology is the science of microbes, particularly bacteria. Many bacteria are motile: they are capable of self-propulsion. Among these, a significant class execute so-called run-and-tumble motion: they follow a fairly straight path for a certain distance, then abruptly change direction before repeating the process. This dynamics has something in common with Brownian motion (it is diffusive at large scales), and also something in contrast. Specifically, motility parameters such as the run speed and tumble rate depend on the local environment and hence can vary in space. When they do so, even if a steady state is reached, this is not generally invariant under time-reversal: the principle of detailed balance, which restores the microscopic time-reversal symmetry of systems in thermal equilibrium, is mesoscopically absent in motile bacteria. This lack of detailed balance (allowed by the flux of chemical energy that drives motility) creates pitfalls for the unwary modeller. Here I review some statistical mechanical models for bacterial motility, presenting them as a paradigm for exploring diffusion without detailed balance. I also discuss the extent to which statistical physics is useful in understanding real or potential microbiological experiments.

M. E. Cates

2012-08-20T23:59:59.000Z

335

Model of Procedure Usage – Results from a Qualitative Study to Inform Design of Computer-Based Procedures  

SciTech Connect (OSTI)

The nuclear industry is constantly trying to find ways to decrease the human error rate, especially the human errors associated with procedure use. As a step toward the goal of improving procedure use performance, researchers, together with the nuclear industry, have been looking at replacing the current paper-based procedures with computer-based procedure systems. The concept of computer-based procedures is not new by any means; however most research has focused on procedures used in the main control room. Procedures reviewed in these efforts are mainly emergency operating procedures and normal operating procedures. Based on lessons learned for these previous efforts we are now exploring a more unknown application for computer based procedures - field procedures, i.e. procedures used by nuclear equipment operators and maintenance technicians. The Idaho National Laboratory, the Institute for Energy Technology, and participants from the U.S. commercial nuclear industry are collaborating in an applied research effort with the objective of developing requirements and specifications for a computer-based procedure system to be used by field operators. The goal is to identify the types of human errors that can be mitigated by using computer-based procedures and how to best design the computer-based procedures to do this. The underlying philosophy in the research effort is “Stop – Start – Continue”, i.e. what features from the use of paper-based procedures should we not incorporate (Stop), what should we keep (Continue), and what new features or work processes should be added (Start). One step in identifying the Stop – Start – Continue was to conduct a baseline study where affordances related to the current usage of paper-based procedures were identified. The purpose of the study was to develop a model of paper based procedure use which will help to identify desirable features for computer based procedure prototypes. Affordances such as note taking, markups, sharing procedures between fellow coworkers, the use of multiple procedures at once, etc. were considered. The model describes which affordances associated with paper based procedures should be transferred to computer-based procedures as well as what features should not be incorporated. The model also provides a means to identify what new features not present in paper based procedures need to be added to the computer-based procedures to further enhance performance. The next step is to use the requirements and specifications to develop concepts and prototypes of computer-based procedures. User tests and other data collection efforts will be conducted to ensure that the real issues with field procedures and their usage are being addressed and solved in the best manner possible. This paper describes the baseline study, the construction of the model of procedure use, and the requirements and specifications for computer-based procedures that were developed based on the model. It also addresses how the model and the insights gained from it were used to develop concepts and prototypes for computer based procedures.

Johanna H Oxstrand; Katya L Le Blanc

2012-07-01T23:59:59.000Z

336

Model documentation Natural Gas Transmission and Distribution Model of the National Energy Modeling System. Volume 1  

SciTech Connect (OSTI)

The Natural Gas Transmission and Distribution Model (NGTDM) of the National Energy Modeling System is developed and maintained by the Energy Information Administration (EIA), Office of Integrated Analysis and Forecasting. This report documents the archived version of the NGTDM that was used to produce the natural gas forecasts presented in the Annual Energy Outlook 1996, (DOE/EIA-0383(96)). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic approach, and provides detail on the methodology employed. Previously this report represented Volume I of a two-volume set. Volume II reported on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.

NONE

1996-02-26T23:59:59.000Z

337

Deformed shell model results for neutrinoless double beta decay of nuclei in A=60-90 region  

E-Print Network [OSTI]

Nuclear transition matrix elements (NTME) for the neutrinoless double beta decay of $^{70}$Zn, $^{80}$Se and $^{82}$Se nuclei are calculated within the framework of the deformed shell model based on Hartree-Fock states. For $^{70}$Zn, jj44b interaction in $^{2}p_{3/2}$, $^{1}f_{5/2}$, $^{2}p_{1/2}$ and $^{1}g_{9/2}$ space with $^{56}$Ni as the core is employed. However, for $^{80}$Se and $^{82}$Se nuclei, a modified Kuo interaction with the above core and model space are employed. Most of our calculations in this region were performed with this effective interaction. However, jj44b interaction has been found to be better for $^{70}$Zn. After ensuring that DSM gives good description of the spectroscopic properties of low-lying levels in these three nuclei considered, the NTME are calculated. The deduced half-lives with these NTME, assuming neutrino mass is 1 eV, are $9.6 \\times 10^{25}$yr, $1.9 \\times 10^{27}$yr and $1.95 \\times 10^{24}$yr for $^{70}$Zn, $^{80}$Se and $^{82}$Se, respectively.

R. Sahu; V. K. B. Kota

2014-09-17T23:59:59.000Z

338

Deformed shell model results for neutrinoless double beta decay of nuclei in A=60-90 region  

E-Print Network [OSTI]

Nuclear transition matrix elements (NTME) for the neutrinoless double beta decay of $^{70}$Zn, $^{80}$Se and $^{82}$Se nuclei are calculated within the framework of the deformed shell model based on Hartree-Fock states. For $^{70}$Zn, jj44b interaction in $^{2}p_{3/2}$, $^{1}f_{5/2}$, $^{2}p_{1/2}$ and $^{1}g_{9/2}$ space with $^{56}$Ni as the core is employed. However, for $^{80}$Se and $^{82}$Se nuclei, a modified Kuo interaction with the above core and model space are employed. Most of our calculations in this region were performed with this effective interaction. However, jj44b interaction has been found to be better for $^{70}$Zn. After ensuring that DSM gives good description of the spectroscopic properties of low-lying levels in these three nuclei considered, the NTME are calculated. The deduced half-lives with these NTME, assuming neutrino mass is 1 eV, are $9.6 \\times 10^{25}$yr, $1.9 \\times 10^{27}$yr and $1.95 \\times 10^{24}$yr for $^{70}$Zn, $^{80}$Se and $^{82}$Se, respectively.

Sahu, R

2014-01-01T23:59:59.000Z

339

Multi-century Changes to Global Climate and Carbon Cycle: Results from a Coupled Climate and Carbon Cycle Model  

SciTech Connect (OSTI)

In this paper, we use a coupled climate and carbon cycle model to investigate the global climate and carbon cycle changes out to year 2300 that would occur if CO{sub 2} emissions from all the currently estimated fossil fuel resources were released to the atmosphere. By year 2300, the global climate warms by about 8 K and atmospheric CO{sub 2} reaches 1423 ppmv. The warming is higher than anticipated because the sensitivity to radiative forcing increases as the simulation progresses. In our simulation, the rate of emissions peak at over 30 PgC yr{sup -1} early in the 22nd century. Even at year 2300, nearly 50% of cumulative emissions remain in the atmosphere. In our simulations both soils and living biomass are net carbon sinks throughout the simulation. Despite having relatively low climate sensitivity and strong carbon uptake by the land biosphere, our model projections suggest severe long-term consequences for global climate if all the fossil-fuel carbon is ultimately released to the atmosphere.

Bala, G; Caldeira, K; Mirin, A; Wickett, M; Delire, C

2005-02-17T23:59:59.000Z

340

Simulation of High Efficiency Clean Combustion Engines and Detailed...  

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

SAGE Map - I Map - II (K) Multi-zone model in CONVERGE shows very good agreement between spatial and temporal temperature evolution 23 Lawrence Livermore National Laboratory...

Note: This page contains sample records for the topic "model results detailed" 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

15APR91 DDT results on a Sun IPC, a Sun Sparcstation 2, a IBM RS/6000 Model 550, and a  

E-Print Network [OSTI]

15APR91 DDT results on a Sun IPC, a Sun Sparcstation 2, a IBM RS/6000 Model 550, and a Convex C1. Brian Glendenning & Gareth Hunt November 13, 1991 1 Introduction The Large DDT has been run on a Sun IPC

Groppi, Christopher

342

Producibility in hierarchical self-assembly Three results are shown on producibility in the hierarchical model of tile self-assembly.  

E-Print Network [OSTI]

Producibility in hierarchical self-assembly David Doty Abstract Three results are shown on producibility in the hierarchical model of tile self-assembly. It is shown that a simple greedy polynomial, an assembly is considered terminal if nothing can attach to it; viewing self-assembly as a computation

Doty, David

343

The rapidly evolving field of decadal climate prediction, using initialized climate models to produce time-evolving predictions of regional climate, is producing new results for  

E-Print Network [OSTI]

, and it is on those time scales of interest to water managers that decadal climate prediction is being appliedThe rapidly evolving field of decadal climate prediction, using initialized climate models to produce time-evolving predictions of regional climate, is producing new results for predictions

344

Characterizing fractured rock for fluid-flow, geomechanical, and paleostress modeling: Methods and preliminary results from Yucca Mountain, Nevada  

SciTech Connect (OSTI)

Fractures have been characterized for fluid-flow, geomechanical, and paleostress modeling at three localities in the vicinity of drill hole USW G-4 at Yucca Mountain in southwestern Nevada. A method for fracture characterization is introduced that integrates mapping fracture-trace networks and quantifying eight fracture parameters: trace length, orientation, connectivity, aperture, roughness, shear offset, trace-length density, and mineralization. A complex network of fractures was exposed on three 214- to 260-m 2 pavements cleared of debris in the upper lithophysal unit of the Tiva Canyon Member of the Miocene Paint-brush Tuff. The pavements are two-dimensional sections through the three-dimensional network of strata-bound fractures. All fractures with trace lengths greater than 0.2 m were mapped and studied.

Barton, C.C.; Larsen, E.; Page, W.R.; Howard, T.M.

1993-12-31T23:59:59.000Z

345

A detailed spectroscopic study of an Italian fresco  

SciTech Connect (OSTI)

In the present work we characterized samples of plasters and pictorial layers taken from a fresco in the Acireale Cathedral. The fresco represents the Coronation of Saint Venera, patron saint of this Ionian town. By performing a detailed spectroscopic analysis of the plaster preparation layer by Fourier-transform infrared (FTIR) spectroscopy and x-ray diffraction (XRD), and of the painting layer by FTIR and confocal Raman microspectroscopy, scanning electron microscopy+energy dispersive x-ray spectroscopy, and XRD, we were able to identify the pigments and the binders present. In particular, Raman investigation was crucial to the characterization of the pigments thanks to the high resolution of the confocal apparatus used. It is worth stressing that the simultaneous use of complementary techniques was able to provide more complete information for the conservation of the artifact we studied.

Barilaro, Donatella; Crupi, Vincenza; Majolino, Domenico; Barone, Germana; Ponterio, Rosina [Dipartimento di Fisica and Instituto Nazionale per la Fisica della Materia (INFM), Universita di Messina, Contrada Papardo, Salita Sperone 31, P.O. Box 55, 98166 Messina (Italy); Dipartimento di Scienze dalla Terra, Universita di Messina, Contrada Papardo, Salita Sperone 31, P.O. Box 55, 98166 Messina (Italy); Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche-Istituto per i Processi Chimico Fisici (CNR-IPCF), Sezione di Messina, Via La Farina 237, 98123 Messina (Italy)

2005-02-15T23:59:59.000Z

346

Summary Results for Brine Migration Modeling Performed by LANL, LBNL, and SNL for the Used Fuel Disposition Program  

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 Rate4 Recovery Act/BuySummary Max TotalResults for Brine

347

Numerical modeling of carbon dioxide sequestration on the rate of pressure solution creep in limestone: Preliminary results  

E-Print Network [OSTI]

When carbon dioxide (CO2) is injected into an aquifer or a depleted geological reservoir, its dissolution into solution results in acidification of the pore waters. As a consequence, the pore waters become more reactive, which leads to enhanced dissolution-precipitation processes and a modification of the mechanical and hydrological properties of the rock. This effect is especially important for limestones given that the solubility and reactivity of carbonates is strongly dependent on pH and the partial pressure of CO2. The main mechanism that couples dissolution, precipitation and rock matrix deformation is commonly referred to as intergranular pressure solution creep (IPS) or pervasive pressure solution creep (PSC). This process involves dissolution at intergranular grain contacts subject to elevated stress, diffusion of dissolved material in an intergranular fluid, and precipitation in pore spaces subject to lower stress. This leads to an overall and pervasive reduction in porosity due to both grain indent...

Renard, Francois; Hellmann, Roland; Collombet, Marielle; Guen, Yvi Le

2008-01-01T23:59:59.000Z

348

On power-counting renormalizability of Ho?ava gravity with detailed balance  

E-Print Network [OSTI]

We consider the version of Ho\\v{r}ava gravity where "detailed balance" is consistently implemented, such as to limitate the huge proliferation of couplings in the full theory and to obtain an healthy dynamics at low-energy. Since a superpotential which is third-order in spatial derivatives is not sufficient to guarantee the power-counting renormalizability of the spin-0 graviton, then one needs to go an order beyond in derivatives, building up a superpotential up to fourth-order spatial derivatives. Here, we perturb the action to quadratic order around flat space, and show that power-counting renormalizability of the spin-0 graviton is achieved only by setting to zero a specific coupling of the theory, while the spin-2 graviton is always power-counting renormalizable for any choice of the couplings. This result raises serious doubts about the use of detailed balance.

Daniele Vernieri

2015-02-23T23:59:59.000Z

349

On power-counting renormalizability of Ho\\v{r}ava gravity with detailed balance  

E-Print Network [OSTI]

We consider the version of Ho\\v{r}ava gravity where "detailed balance" is consistently implemented, such as to limitate the huge proliferation of couplings in the full theory and to obtain an healthy dynamics at low-energy. Since a superpotential which is third-order in spatial derivatives is not sufficient to guarantee the power-counting renormalizability of the spin-0 graviton, then one needs to go an order beyond in derivatives, building up a superpotential up to fourth-order spatial derivatives. Here, we perturb the action to quadratic order around flat space, and show that power-counting renormalizability of the spin-0 graviton is achieved only by setting to zero a specific coupling of the theory, while the spin-2 graviton is always power-counting renormalizable for any choice of the couplings. This result raises serious doubts about the use of detailed balance.

Vernieri, Daniele

2015-01-01T23:59:59.000Z

350

The influence of strange quarks on QCD phase diagram and chemical freeze-out: Results from the hadron resonance gas model  

E-Print Network [OSTI]

We confront the lattice results on QCD phase diagram for two and three flavors with the hadron resonance gas model. Taking into account the truncations in the Taylor-expansion of energy density $\\epsilon$ done on the lattice at finite chemical potential $\\mu$, we find that the hadron resonance gas model under the condition of constant $\\epsilon$ describes very well the lattice phase diagram. We also calculate the chemical freeze-out curve according to the entropy density $s$. The $s$-values are taken from lattice QCD simulations with two and three flavors. We find that this condition is excellent in reproducing the experimentally estimated parameters of the chemical freeze-out.

A. Tawfik

2004-10-25T23:59:59.000Z

351

Microsoft Word - NPH Workshop with Detailed Summary.docx  

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

Fires After Earthquake Scenarios for Single Buildings Raymond Tell and Elizabeth Kelly 10:15 a.m. The Need for an Integrated Risk Model Michael Salmon and Lawrence Goen...

352

A Detailed Spectroscopic and Photometric Analysis of DQ White Dwarfs  

E-Print Network [OSTI]

We present an analysis of spectroscopic and photometric observations of cool DQ white dwarfs based on improved model atmosphere calculations. In particular, we revise the atmospheric parameters of the trigonometric parallax sample of Bergeron, Leggett, & Ruiz, and discuss the astrophysical implications on the temperature scale and mean mass, as well as the chemical evolution of these stars. We also analyze 40 new DQ stars discovered in the first data release of the Sloan Digital Sky Survey. Our analysis confirms that effective temperatures derived from model atmospheres including carbon are significantly lower than the temperatures obtained from pure helium models. Similarly the mean mass of the trigonometric parallax sample, = 0.62 Mo, is significantly lower than that obtained from pure helium models, = 0.73 Mo, and more consistent with the spectroscopic mean mass of DB stars, = 0.59 Mo, the most likely progenitors of DQ white dwarfs. We find that DQ stars form a remarkably well defined sequence in a carbon abundance versus effective temperature diagram; below Teff~10,000 K, carbon pollution decreases monotonically with decreasing effective temperature. Improved evolutionary models including diffusion and connecting to the PG 1159 phase are used to infer a typical value for the thickness of the helium layer M_He/M_* between 10^{-3} and 10^{-2}, compatible with the predictions of post-AGB models.

P. Dufour; P. Bergeron; G. Fontaine

2005-03-21T23:59:59.000Z

353

GRB 050822: Detailed analysis of an XRF observed by Swift  

E-Print Network [OSTI]

We report on the temporal and spectral characteristics of the early X-ray emission from the GRB 050822 as observed by Swift. This burst is likely to be an XRF showing major X-ray flares in its XRT light-curve. The quality of the data allows a detailed spectral analysis of the early afterglow in the X-ray band. During the X-ray flares, a positive correlation between the count rate and the spectral hardness (i.e. higher the count rate is and harder the spectrum is) is clearly seen for the X-ray flares. This behaviour similar to that seen for Gamma-ray pulses indicates that the energy peak of the spectrum is in the XRT energy band and it moves at lower energy with time. We show evidence for the possible detection of the emergence of the forward-shock emission produced at a radius larger than 4 x 10^{16} cm (a forming region clearly different to that producing the prompt emission). Finally, we show that the null detection of a jet break up to T_0+4 x 10^6s in the X-ray light curve of this XRF can be understood: i...

Godet, O; Osborne, J; Zhang, B; Burrows, D N; O'Brien, P T; Hill, J E; Racusin, J; Beardmore, A P; Goad, M R; Falcone, A; Morris, D C; Ziaeepour, H

2007-01-01T23:59:59.000Z

354

Evolution Effects on Parton Energy Loss with Detailed Balance  

E-Print Network [OSTI]

The initial conditions in the chemical non-equilibrated medium and Bjorken expanding medium at RHIC are determined. With a set of rate equations describing the chemical equilibration of quarks and gluons based on perturbative QCD, we investigate the consequence for parton evolution at RHIC. With considering parton evolution, it is shown that the Debye screening mass and the inverse mean free-path of gluons reduce with increasing proper time in the QGP medium. The parton evolution affects the parton energy loss with detailed balance, both parton energy loss from stimulated emission in the chemical non-equilibrated expanding medium and in Bjorken expanding medium are linear dependent on the propagating distance rather than square dependent in the static medium. The energy absorption can not be neglected at intermediate jet energies and small propagating distance of the energetic parton in contrast with that it is important only at intermediate jet energy in the static medium. This will increase the energy and propagating distance dependence of the parton energy loss and will affect the shape of suppression of moderately high P_T hadron spectra.

Luan cheng; Enke Wang

2010-04-30T23:59:59.000Z

355

Heating in the tropical atmosphere: what level of detail is critical for accurate MJO simulations in GCMs?  

E-Print Network [OSTI]

Heating in the tropical atmosphere: what level of detail is critical for accurate MJO simulations processes that affect heating in some facet. In this study, we examine various heating adjustments in Community Atmospheric Model version 4 (CAM4) to determine what the vertical and horizontal heating

356

Combined results of searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 TeV  

SciTech Connect (OSTI)

Combined results are reported from searches for the standard model Higgs boson in proton-proton collisions at sqrt(s)=7 TeV in five Higgs boson decay modes: gamma pair, b-quark pair, tau lepton pair, W pair, and Z pair. The explored Higgs boson mass range is 110-600 GeV. The analysed data correspond to an integrated luminosity of 4.6-4.8 inverse femtobarns. The expected excluded mass range in the absence of the standard model Higgs boson is 118-543 GeV at 95% CL. The observed results exclude the standard model Higgs boson in the mass range 127-600 GeV at 95% CL, and in the mass range 129-525 GeV at 99% CL. An excess of events above the expected standard model background is observed at the low end of the explored mass range making the observed limits weaker than expected in the absence of a signal. The largest excess, with a local significance of 3.1 sigma, is observed for a Higgs boson mass hypothesis of 124 GeV. The global significance of observing an excess with a local significance greater than 3.1 sigma anywhere in the search range 110-600 (110-145) GeV is estimated to be 1.5 sigma (2.1 sigma). More data are required to ascertain the origin of this excess.

Chatrchyan, Serguei; et al.

2012-03-01T23:59:59.000Z

357

Combined results of searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 TeV  

E-Print Network [OSTI]

Combined results are reported from searches for the standard model Higgs boson in proton-proton collisions at sqrt(s)=7 TeV in five Higgs boson decay modes: gamma pair, b-quark pair, tau lepton pair, W pair, and Z pair. The explored Higgs boson mass range is 110-600 GeV. The analysed data correspond to an integrated luminosity of 4.6-4.8 inverse femtobarns. The expected excluded mass range in the absence of the standard model Higgs boson is 118-543 GeV at 95% CL. The observed results exclude the standard model Higgs boson in the mass range 127-600 GeV at 95% CL, and in the mass range 129-525 GeV at 99% CL. An excess of events above the expected standard model background is observed at the low end of the explored mass range making the observed limits weaker than expected in the absence of a signal. The largest excess, with a local significance of 3.1 sigma, is observed for a Higgs boson mass hypothesis of 124 GeV. The global significance of observing an excess with a local significance greater than 3.1 sigma anywhere in the search range 110-600 (110-145) GeV is estimated to be 1.5 sigma (2.1 sigma). More data are required to ascertain the origin of this excess.

CMS Collaboration

2012-02-07T23:59:59.000Z

358

Detailed Chemical Kinetic Reaction Mechanism for Biodiesel Components Methyl Stearate and Methyl Oleate  

SciTech Connect (OSTI)

New chemical kinetic reaction mechanisms are developed for two of the five major components of biodiesel fuel, methyl stearate and methyl oleate. The mechanisms are produced using existing reaction classes and rules for reaction rates, with additional reaction classes to describe other reactions unique to methyl ester species. Mechanism capabilities were examined by computing fuel/air autoignition delay times and comparing the results with more conventional hydrocarbon fuels for which experimental results are available. Additional comparisons were carried out with measured results taken from jet-stirred reactor experiments for rapeseed methyl ester fuels. In both sets of computational tests, methyl oleate was found to be slightly less reactive than methyl stearate, and an explanation of this observation is made showing that the double bond in methyl oleate inhibits certain low temperature chain branching reaction pathways important in methyl stearate. The resulting detailed chemical kinetic reaction mechanism includes more approximately 3500 chemical species and more than 17,000 chemical reactions.

Naik, C; Westbrook, C K; Herbinet, O; Pitz, W J; Mehl, M

2010-01-22T23:59:59.000Z

359

Detailed chemical kinetic mechanism for the oxidation of biodiesel fuels blend surrogate.  

SciTech Connect (OSTI)

Detailed chemical kinetic mechanisms were developed and used to study the oxidation of two large unsaturated esters: methyl-5-decenoate and methyl-9-decenoate. These models were built from a previous methyl decanoate mechanism and were compared with rapeseed oil methyl esters oxidation experiments in a jet stirred reactor. A comparative study of the reactivity of these three oxygenated compounds was performed and the differences in the distribution of the products of the reaction were highlighted showing the influence of the presence and the position of a double bond in the chain. Blend surrogates, containing methyl decanoate, methyl-5-decenoate, methyl-9-decenoate and n-alkanes, were tested against rapeseed oil methyl esters and methyl palmitate/n-decane experiments. These surrogate models are realistic kinetic tools allowing the study of the combustion of biodiesel fuels in diesel and homogeneous charge compression ignition engines.

Herbinet, O; Pitz, W J; Westbrook, C K

2009-07-21T23:59:59.000Z

360

Detailed microscopic calculation of stellar electron and positron capture rates on $^{24}$Mg for O+Ne+Mg core simulations  

E-Print Network [OSTI]

Few white dwarfs, located in binary systems, may acquire sufficiently high mass accretion rates resulting in the burning of carbon and oxygen under nondegenerate conditions forming a O+Ne+Mg core. These O+Ne+Mg cores are gravitationally less bound than more massive progenitor stars and can release more energy due to the nuclear burning. They are also amongst the probable candidates for low entropy r-process sites. Recent observations of subluminous Type II-P supernovae (e.g., 2005cs, 2003gd, 1999br, 1997D) were able to rekindle the interest in 8 -- 10 M$_{\\odot}$ which develop O+Ne+Mg cores. Microscopic calculations of capture rates on $^{24}$Mg, which may contribute significantly to the collapse of O+Ne+Mg cores, using shell model and proton-neutron quasiparticle random phase approximation (pn-QRPA) theory, were performed earlier and comparisons made. Simulators, however, may require these capture rates on a fine scale. For the first time a detailed microscopic calculation of the electron and positron capture rates on $^{24}$Mg on an extensive temperature-density scale is presented here. This type of scale is more appropriate for interpolation purposes and of greater utility for simulation codes. The calculations are done using the pn-QRPA theory using a separable interaction. The deformation parameter, believed to be a key parameter in QRPA calculations, is adopted from experimental data to further increase the reliability of the QRPA results. The resulting calculated rates are up to a factor of 14 or more enhanced as compared to shell model rates and may lead to some interesting scenario for core collapse simulators.

Jameel-Un Nabi

2014-08-15T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" 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

Detailed investigation of a pulverized fuel swirl flame in CO{sub 2}/O{sub 2} atmosphere  

SciTech Connect (OSTI)

A novel approach to oxycoal flame stabilization has been developed at the Institute of Heat and Mass Transfer at RWTH Aachen University [D. Toporov, M. Foerster, R. Kneer, in: Third Int. Conf. on Clean Coal Technologies for Our Future, Cagliari, Sardinia, Italy, 15-17 May 2007]. The swirl burner design and its operating conditions have been adjusted in order to enforce CO formation thus stabilizing the flame and obtaining a full burnout at levels of O{sub 2} content in the O{sub 2}/CO{sub 2} mixture similar to those in air. The paper presents results of detailed numerical and experimental investigations of a stable oxy-fired pulverized coal swirl flame (type-2) obtained with a 21 vol% O{sub 2} concentration. The combustion tests were performed in a vertical pilot-scale furnace (100 kW{sub th}) in the framework of the OXYCOAL-AC research project aiming to develop a membrane-based oxyfuel process. The experimental results concerning gas velocities, gas and particle temperatures, and gas compositions are presented and discussed, focusing on the underlying mechanisms as well as on the aerodynamics of the oxycoal flame. A comparison between measurements and simulations has shown the validity of the numerical method used. The reported data set can be used for validation of numerical models developed for prediction of oxyfuel combustion. (author)

Toporov, D.; Bocian, P.; Heil, P.; Kellermann, A.; Stadler, H.; Tschunko, S.; Foerster, M.; Kneer, R. [Institute of Heat and Mass Transfer, RWTH Aachen University, Eilfschornsteinstrasse 18, D-52056 Aachen (Germany)

2008-12-15T23:59:59.000Z

362

Generic CSP Performance Model for NREL's System Advisor Model: Preprint  

SciTech Connect (OSTI)

The suite of concentrating solar power (CSP) modeling tools in NREL's System Advisor Model (SAM) includes technology performance models for parabolic troughs, power towers, and dish-Stirling systems. Each model provides the user with unique capabilities that are catered to typical design considerations seen in each technology. Since the scope of the various models is generally limited to common plant configurations, new CSP technologies, component geometries, and subsystem combinations can be difficult to model directly in the existing SAM technology models. To overcome the limitations imposed by representative CSP technology models, NREL has developed a 'Generic Solar System' (GSS) performance model for use in SAM. This paper discusses the formulation and performance considerations included in this model and verifies the model by comparing its results with more detailed models.

Wagner, M. J.; Zhu, G.

2011-08-01T23:59:59.000Z

363

The architectural details of Alvaro Siza : a chorology  

E-Print Network [OSTI]

A chorology is an analysis of the relationships between the constituent parts of a system or assemblage. Architecture is not only the result of the connection between a vast set of components and their manifold interactions, ...

Rohrbacher, Gary P. (Gary Pickard), 1964-

1998-01-01T23:59:59.000Z

364

Detailed Spectroscopic and Photometric Analysis of DQ White Dwarfs  

E-Print Network [OSTI]

We present an analysis of spectroscopic and photometric data for cool DQ white dwarfs based on improved model atmosphere calculations. In particular, we revise the atmospheric parameters of the trigonometric parallax sample of Bergeron et al.(2001), and discuss the astrophysical implications on the temperature scale and mean mass, as well as the chemical evolution of these stars. We also analyze 40 new DQ stars discovered in the first data release of the Sloan Digital Sky Survey.

P. Dufour; P. Bergeron; G. Fontaine

2005-03-04T23:59:59.000Z

365

Results concerning the use of seismic and well log data for defining the geological model of the productive structures on the Romanian Continental Shelf of the Black Sea  

SciTech Connect (OSTI)

The contribution of the 3D seismics on the East-Lebada Structure of the Romanian Continental Shelf of the Black Sea, together with the complex well logging have led to the improvement of the reservoir geological model. The interpretation has been performed on 3d seismic profiles. Time migrated profiles were interpreted, by means of the program system OASIIS. The acoustic logging data were used for calibration, in order to identify the reflections corresponding to the geological boundary. By means of these reflections on the seismic profiles, the adequate geological model has been defined. A system of tectonic accidents which were not known till now were rendered evident. The interpretation of the complex well loggings, through the Well Log Analysis Program System - Express - allowed to determine the petrophysical-petrographical parameters necessary for reservoir evaluation, in correlation with core analysis. Thus, four horizons corresponding to the Albian age with favorable collector properties were rendered evident, in alternance with unfavorable collector properties zones. The well logs, performed at different time periods and with different tools were corrected and standardized for the well environment conditions and, depending on the logging program, different program modules were used to obtain the most adequate results. The parameter averaging performed by zones, for each well, together with the image furnished by the seismic data, allowed us to build the final geometrical and isoparametric model of the reservoir, used for further reservoir simulation. Based on the results obtained, the analysis was extended to West-Lebada Structure.

Babskow, A.; Baleanu, I.; Popa, D. [Institute for Research and Technology, Prahova (Romania)] [and others

1995-08-01T23:59:59.000Z

366

Detailed Assessment of Particulate Characteristics from Low-Temperature  

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 Company AgreesDesiree Pipkins About UsDepartment

367

Detailed HCCI Exhaust Speciation - ORNL Reference Fuel Blends | 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-UpHeat Pump Models |Conduct, Parent Company AgreesDesiree Pipkins AboutCourse Moduleof

368

Structure of Partially Premixed Flames Using Detailed Chemistry Simulations  

E-Print Network [OSTI]

obtained at Sandia National Labs in 2001. The study is focused on axisymmetric laminar partially-premixed methane/air flames with varying premixture strength values of 1.8, 2.2, and 3.17. The combination of computational and experimental results is used...

Kluzek, Celine D.

2010-10-12T23:59:59.000Z

369

Fort Irwin Integrated Resource Assessment. Volume 2, Baseline detail  

SciTech Connect (OSTI)

This report documents the assessment of baseline energy use at Fort Irwin, a US Army Forces Command facility near Barstow, California. It is a companion report to Volume 1, Executive Summary, and Volume 3, Integrated Resource Assessment. The US Army Forces Command (FORSCOM) has tasked the US Department of Energy (DOE) Federal Energy Management Program (FEMP), supported by the Pacific Northwest Laboratory (PNL), to identify, evaluate, and assist in acquiring all cost-effective energy projects at Fort Irwin. This is part of a model program that PNL has designed to support energy-use decisions in the federal sector. This program (1) identifies and evaluates all cost-effective energy projects; (2) develops a schedule at each installation for project acquisition considering project type, size, timing, and capital requirements, as well as energy and dollar savings; and (3) targets 100% of the financing required to implement energy efficiency projects. PNL applied this model program to Fort Irwin. This analysis examines the characteristics of electric, propane gas, and vehicle fuel use for a typical operating year. It records energy-use intensities for the facilities at Fort Irwin by building type and energy end use. It also breaks down building energy consumption by fuel type, energy end use, and building type. A complete energy consumption reconciliation is presented that accounts for all energy use among buildings, utilities, and applicable losses.

Richman, E.E.; Keller, J.M.; Dittmer, A.L.; Hadley, D.L.

1994-01-01T23:59:59.000Z

370

Analysis of High-Penetration Levels of Photovoltaics into the Distribution Grid on Oahu, Hawaii: Detailed Analysis of HECO Feeder WF1  

SciTech Connect (OSTI)

Renewable generation is growing at a rapid rate due to the incentives available and the aggressive renewable portfolio standard targets implemented by state governments. Distributed generation in particular is seeing the fastest growth among renewable energy projects, and is directly related to the incentives. Hawaii has the highest electricity costs in the country due to the high percentage of oil burning steam generation, and therefore has some of the highest penetration of distributed PV in the nation. The High Penetration PV project on Oahu aims to understand the effects of high penetration PV on the distribution level, to identify penetration levels creating disturbances on the circuit, and to offer mitigating solutions based on model results. Power flow models are validated using data collected from solar resources and load monitors deployed throughout the circuit. Existing interconnection methods and standards are evaluated in these emerging high penetration scenarios. A key finding is a shift in the level of detail to be considered and moving away from steady-state peak time analysis towards dynamic and time varying simulations. Each level of normal interconnection study is evaluated and enhanced to a new level of detail, allowing full understanding of each issue.

Stewart, E.; MacPherson, J.; Vasilic, S.; Nakafuji, D.; Aukai, T.

2013-05-01T23:59:59.000Z

371

Contact Details of Local Forestry Commission and DARDNI Plant Health Inspectors at Points of Entry UK Principle Ports Inspector Contact Details  

E-Print Network [OSTI]

UK Principle Ports Inspector Contact Details Grangemouth, Greenock, Inverkeithing, Inverness, Leith, Barry, Port Talbot, Swansea, Neath, Newport, Bristol(Avonmouth), Sharpness Sid Martin Tel/Fax: 01792

372

Crucial role of detailed function, task, timeline, link and human vulnerability analyses in HRA. [Human Reliability Analysis (HRA)  

SciTech Connect (OSTI)

This paper addresses one major cause for large uncertainties in human reliability analysis (HRA) results, that is, an absence of detailed function, task, timeline, link and human vulnerability analyses. All too often this crucial step in the HRA process is done in a cursory fashion using word of mouth or written procedures which themselves may incompletely or inaccurately represent the human action sequences and human error vulnerabilities being analyzed. The paper examines the potential contributions these detailed analyses can make in achieving quantitative and qualitative HRA results which are: (1) creditable, that is, minimize uncertainty, (2) auditable, that is, systematically linking quantitative results and qualitative information from which the results are derived, (3) capable of supporting root cause analyses on human reliability factors determined to be major contributors to risk, and (4) capable of repeated measures and being combined with similar results from other analyses to examine HRA issues transcending individual systems and facilities. Based on experience analyzing test and commercial nuclear reactors, and medical applications of nuclear technology, an iterative process is suggested for doing detailed function, task, timeline, link and human vulnerability analyses using documentation reviews, open-ended and structured interviews, direct observations, and group techniques. Finally, the paper concludes that detailed analyses done in this manner by knowledgeable human factors practitioners, can contribute significantly to the credibility, auditability, causal factor analysis, and combining goals of the HRA.

Ryan, T.G.; Haney, L.N.; Ostrom, L.T.

1992-01-01T23:59:59.000Z

373

Comparison of the Accuracy and Speed of Transient Mobile A/C System Simulation Models: Preprint  

SciTech Connect (OSTI)

The operation of air conditioning (A/C) systems is a significant contributor to the total amount of fuel used by light- and heavy-duty vehicles. Therefore, continued improvement of the efficiency of these mobile A/C systems is important. Numerical simulation has been used to reduce the system development time and to improve the electronic controls, but numerical models that include highly detailed physics run slower than desired for carrying out vehicle-focused drive cycle-based system optimization. Therefore, faster models are needed even if some accuracy is sacrificed. In this study, a validated model with highly detailed physics, the 'Fully-Detailed' model, and two models with different levels of simplification, the 'Quasi-Transient' and the 'Mapped- Component' models, are compared. The Quasi-Transient model applies some simplifications compared to the Fully-Detailed model to allow faster model execution speeds. The Mapped-Component model is similar to the Quasi-Transient model except instead of detailed flow and heat transfer calculations in the heat exchangers, it uses lookup tables created with the Quasi-Transient model. All three models are set up to represent the same physical A/C system and the same electronic controls. Speed and results of the three model versions are compared for steady state and transient operation. Steady state simulated data are also compared to measured data. The results show that the Quasi-Transient and Mapped-Component models ran much faster than the Fully-Detailed model, on the order of 10- and 100-fold, respectively. They also adequately approach the results of the Fully-Detailed model for steady-state operation, and for drive cycle-based efficiency predictions

Kiss, T.; Lustbader, J.

2014-03-01T23:59:59.000Z

374

Improving Combustion Software to Solve Detailed Chemical Kinetics for HECC  

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-Dimensionalthe U.S. Department-2023DepartmentResults | Department| Department

375

China's Building Energy Demand: Long-Term Implications from a Detailed Assessment  

SciTech Connect (OSTI)

We present here a detailed, service-based model of China’s building energy use, nested in the GCAM (Global Change Assessment Model) integrated assessment framework. Using the model, we explore long-term pathways of China’s building energy use and identify opportunities of reducing greenhouse gas emissions. The inclusion of a structural model of building energy demands within an integrated assessment framework represents a major methodological advance. It allows for a structural understanding of the drivers of building energy consumption while simultaneously considering the other human and natural system interactions that influence changes in the global energy system and climate. We also explore a range of different scenarios to gain insights into how China’s building sector might evolve and what the implications might be for improved building energy technology and carbon policies. The analysis suggests that China’s building energy growth will not wane anytime soon, although technology improvement will put downward pressure on this growth. Also, regardless of the scenarios represented, the growth will involve the continued, rapid electrification of the buildings sector throughout the century, and this transition will be accelerated by the implementation of carbon policy.

Eom, Jiyong; Clarke, Leon E.; Kim, Son H.; Kyle, G. Page; Patel, Pralit L.

2012-10-01T23:59:59.000Z

376

China's Building Energy Use: A Long-Term Perspective based on a Detailed Assessment  

SciTech Connect (OSTI)

We present here a detailed, service-based model of China's building energy use, nested in the GCAM (Global Change Assessment Model) integrated assessment framework. Using the model, we explore long-term pathways of China's building energy use and identify opportunities of reducing greenhouse gas emissions. The inclusion of a structural model of building energy demands within an integrated assessment framework represents a major methodological advance. It allows for a structural understanding of the drivers of building energy consumption while simultaneously considering the other human and natural system interactions that influence changes in the global energy system and climate. We also explore a range of different scenarios to gain insights into how China's building sector might evolve and what the implications might be for improved building energy technology and carbon policies. The analysis suggests that China's building energy growth will not wane anytime soon, although technology improvement will put downward pressure on this growth. Also, regardless of the scenarios represented, the growth will involve the continued, rapid electrification of the buildings sector throughout the century, and this transition will be accelerated by the implementation of carbon policy.

Eom, Jiyong; Clarke, Leon E.; Kim, Son H.; Kyle, G. Page; Patel, Pralit L.

2012-01-13T23:59:59.000Z

377

Comparison of optical model results from a microscopic Schrödinger approach to nucleon-nucleus elastic scattering with those from a global Dirac phenomenology  

E-Print Network [OSTI]

Comparisons are made between results of calculations for intermediate energy nucleon-nucleus scattering for 12C, 16O, 40Ca, 90Zr, and 208Pb, using optical potentials obtained from global Dirac phenomenology and from a microscopic Schr\\"odinger model. Differential cross sections and spin observables for scattering from the set of five nuclei at 65 MeV and 200 MeV have been studied to assess the relative merits of each approach. Total reaction cross sections from proton-nucleus and total cross sections from neutron-nucleus scattering have been evaluated and compared with data for those five targets in the energy range 20 MeV to 800 MeV. The methods of analyses give results that compare well with experimental data in those energy regimes for which the procedures are suited.

P. K. Deb; B. C. Clark; S. Hama; K. Amos; S. Karataglidis; E. D. Cooper

2005-04-29T23:59:59.000Z

378

Diffusive transport without detailed balance in motile bacteria: Does microbiology need statistical physics?  

E-Print Network [OSTI]

Microbiology is the science of microbes, particularly bacteria. Many bacteria are motile: they are capable of self-propulsion. Among these, a significant class execute so-called run-and-tumble motion: they follow a fairly straight path for a certain distance, then abruptly change direction before repeating the process. This dynamics has something in common with Brownian motion (it is diffusive at large scales), and also something in contrast. Specifically, motility parameters such as the run speed and tumble rate depend on the local environment and hence can vary in space. When they do so, even if a steady state is reached, this is not generally invariant under time-reversal: the principle of detailed balance, which restores the microscopic time-reversal symmetry of systems in thermal equilibrium, is mesoscopically absent in motile bacteria. This lack of detailed balance (allowed by the flux of chemical energy that drives motility) creates pitfalls for the unwary modeller. Here I review some statistical mecha...

Cates, M E

2012-01-01T23:59:59.000Z

379

Developing cost curves for conserved energy in new refrigerators and freezers: Demonstration of methodology and detailed engineering results  

SciTech Connect (OSTI)

This paper develops and demonstrates a procedure for determining the cost of conserved energy in residential refrigerators and freezers and for ranking conservation measures according to economic feasibility and practicality. Prepared jointly by the Natural Resources Defense Council and ACEE for the Solar Energy Research Institute.

Goldstein, D.; Miller, P.; Watson, R.

1987-01-01T23:59:59.000Z

380

A Heightmap Model for Efficient 3D Reconstruction from Street-Level Video David Gallup1  

E-Print Network [OSTI]

platforms or manually created models for ex- ample Google Sketchup models, providing greater detail from

Frahm, Jan-Michael

Note: This page contains sample records for the topic "model results detailed" 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

Comparison and validation of HEU and LEU modeling results to HEU experimental benchmark data for the Massachusetts Institute of Technology MITR reactor.  

SciTech Connect (OSTI)

The Massachusetts Institute of Technology Reactor (MITR-II) is a research reactor in Cambridge, Massachusetts designed primarily for experiments using neutron beam and in-core irradiation facilities. It delivers a neutron flux comparable to current LWR power reactors in a compact 6 MW core using Highly Enriched Uranium (HEU) fuel. In the framework of its non-proliferation policies, the international community presently aims to minimize the amount of nuclear material available that could be used for nuclear weapons. In this geopolitical context, most research and test reactors both domestic and international have started a program of conversion to the use of Low Enriched Uranium (LEU) fuel. A new type of LEU fuel based on an alloy of uranium and molybdenum (UMo) is expected to allow the conversion of U.S. domestic high performance reactors like the MITR-II reactor. Towards this goal, comparisons of MCNP5 Monte Carlo neutronic modeling results for HEU and LEU cores have been performed. Validation of the model has been based upon comparison to HEU experimental benchmark data for the MITR-II. The objective of this work was to demonstrate a model which could represent the experimental HEU data, and therefore could provide a basis to demonstrate LEU core performance. This report presents an overview of MITR-II model geometry and material definitions which have been verified, and updated as required during the course of validation to represent the specifications of the MITR-II reactor. Results of calculations are presented for comparisons to historical HEU start-up data from 1975-1976, and to other experimental benchmark data available for the MITR-II Reactor through 2009. This report also presents results of steady state neutronic analysis of an all-fresh LEU fueled core. Where possible, HEU and LEU calculations were performed for conditions equivalent to HEU experiments, which serves as a starting point for safety analyses for conversion of MITR-II from the use of HEU fuel to the use of UMo LEU fuel.

Newton, T. H.; Wilson, E. H; Bergeron, A.; Horelik, N.; Stevens, J. (Nuclear Engineering Division); (MIT Nuclear Reactor Lab.)

2011-03-02T23:59:59.000Z

382

Detail design of a 10.4-m stretched-membrane dish. Phase 2, Final report  

SciTech Connect (OSTI)

This report describes efforts conducted under Tasks 3 and 4 of the second phase of the project to develop a single-element stretched-membrane dish concept to reduce the cost of a high-performance concentrating solar collector. We completed the detailed design for such a collector suitable to drive a 25-kWe Stirling motor generator. The design includes the collectors, optical element, the drive, and support systems. The aperture of the optical element was sized to provide the required energy to the engine based on test data and analytical models of the concentrator receiver, and engine. The design of the optical element was improved based on experience gained from the design, fabrication, and testing of several prototypes.

Not Available

1994-01-01T23:59:59.000Z

383

Developing Standard Logic for a Detailed Engineering Project Schedule in the Process Industry  

E-Print Network [OSTI]

Planning Meeting (IPPM) for a standard detailed engineering project in the process industry will be used to develop scheduling logic for use in developing detail engineering project schedules. However, because the IPPM does not clearly distinguish...

Miller-Karns, Kara A.

2009-05-15T23:59:59.000Z

384

DETAILED CHEMICAL KINETIC MODELS FOR THE LOW TEMPERATURE COMBUSTION OF HYDROCARBONS WITH APPLICATION TO  

E-Print Network [OSTI]

oxidation], [gasoline], [diesel fuel], [bio-fuel], [surrogate]. hal-00288708,version1-18Jun2008 #12 WITH APPLICATION TO GASOLINE AND DIESEL FUEL SURROGATES F.BATTIN-LECLERC Département de Chimie-Physique des of gasoline and diesel fuel components (alkanes, ethers, esters, alkenes, cycloalkanes, aromatics, including

Paris-Sud XI, Université de

385

On the spherically symmetrical combustion of methyl decanoate droplets and comparisons with detailed numerical modeling  

E-Print Network [OSTI]

.e., 40­50% for CI compared to 25­30% for SI). As such, diesel power has the potential for an immediate impact on petroleum consumption, especially when conventional diesel is blended with bio-diesel fuels [3­5]. Blending diesel fuel with a fuel derived from sustainable sources will have an immediate impact

Walter, M.Todd

386

Detail Enhancing Denoising of Digitized 3D Models from a Mobile  

E-Print Network [OSTI]

, and fruitful commentary. I would also like to thank Matt Heric, and the folks at IAVO Research and Scientific

Abidi, Mongi A.

387

Chemical Engineering Journal 113 (2005) 205214 A detailed model of a biofilter for ammonia removal  

E-Print Network [OSTI]

facilities and other industrial sources. Com- mon air pollution control processes for polluted emissions 935813302; fax: +34 935812013. E-mail address: david.gabriel@uab.es (D. Gabriel). polluted air emissions, Marc A. Deshussesb, Xavier Gamisansa, David Gabrielc,, Javier Lafuentec a Department of Mining

388

A comprehensive experimental and detailed chemical kinetic modelling study of 2,5-dimethylfuran  

E-Print Network [OSTI]

and oxidative behaviour of the biofuel 2,5-dimethylfuran (25DMF) has been studied in a range of experimental study of 25DMF in a jet-stirred reactor (JSR) from 770­1220 K, at 10.0 atm, residence times of 0

Paris-Sud XI, Université de

389

Development of a Fast and Detailed Model of Urban-Scale Chemical and Physical Processing  

E-Print Network [OSTI]

A reduced form metamodel has been produced to simulate the effects of physical, chemical, and meteorological processing of highly reactive trace species in hypothetical urban areas, which is capable of efficiently simulating ...

Prinn, Ronald G.

390

DETAILED LOOP MODEL (DLM) ANALYSIS OF LIQUID SOLAR THERMOSIPHONS WITH HEAT EXCHANGERS  

E-Print Network [OSTI]

L(~/d)eq a resistance to summation equivalent length specia resistance to flow in pipe (£/d)eq equivalent length

Mertol, A.

2013-01-01T23:59:59.000Z

391

DETAILED LOOP MODEL (DLM) ANALYSIS OF LIQUID SOLAR THERMOSIPHONS WITH HEAT EXCHANGERS  

E-Print Network [OSTI]

of Solar Domestic Hot Water Heaters in California,n inBradley, J.M. , Water Heater Construe on. u AdministrationDevelopment of a erant Solar Water Heater Using Crosslinked

Mertol, A.

2013-01-01T23:59:59.000Z

392

SciTech Connect: Detailed and global chemical kinetics model for hydrogen  

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 systems controllerAdditiveBetatronAerogel Deep BedDemonstration of

393

Posters A One-Dimensional Radiative Convective Model with Detailed Cloud Microphysics  

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 - September 2006PhotovoltaicSeptember 22, 2014SocietyJ. Dudhia51 Posters A5 Posters

394

DETAILED LOOP MODEL (DLM) ANALYSIS OF LIQUID SOLAR THERMOSIPHONS WITH HEAT EXCHANGERS  

E-Print Network [OSTI]

a Collector- Cum-Storage Type of ar Water Heater, 11 SolarSolar Water Heater of the Combined Collector and Storagethermosiphon water heaters with heat exchangers in storage

Mertol, A.

2013-01-01T23:59:59.000Z

395

Cold vacuum drying proof of performance (first article testing) test results  

SciTech Connect (OSTI)

This report presents and details the test results of the first of a kind process referred to as Cold Vacuum Drying (CVD). The test results are compiled from several months of testing of the first process equipment skid and ancillary components to de-water and dry Multi-Canister Overpacks (MCO) filled with Spent Nuclear Fuel (SNF). The tests results provide design verifications, equipment validations, model validation data, and establish process parameters.

MCCRACKEN, K.J.

1999-06-23T23:59:59.000Z

396

Search results | Department of Energy  

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

High School (9-12) Teachers Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Download The BEAM Project: Building Efficient Architectural Models This...

397

Waste receiving and processing facility module 1, detailed design report  

SciTech Connect (OSTI)

WRAP 1 baseline documents which guided the technical development of the Title design included: (a) A/E Statement of Work (SOW) Revision 4C: This DOE-RL contractual document specified the workscope, deliverables, schedule, method of performance and reference criteria for the Title design preparation. (b) Functional Design Criteria (FDC) Revision 1: This DOE-RL technical criteria document specified the overall operational criteria for the facility. The document was a Revision 0 at the beginning of the design and advanced to Revision 1 during the tenure of the Title design. (c) Supplemental Design Requirements Document (SDRD) Revision 3: This baseline criteria document prepared by WHC for DOE-RL augments the FDC by providing further definition of the process, operational safety, and facility requirements to the A/E for guidance in preparing the design. The document was at a very preliminary stage at the onset of Title design and was revised in concert with the results of the engineering studies that were performed to resolve the numerous technical issues that the project faced when Title I was initiated, as well as, by requirements established during the course of the Title II design.

Not Available

1993-10-01T23:59:59.000Z

398

Incorporation of Detailed Chemical Mechanisms in Reactive Flow Simulations Using Element-Flux Analysis  

E-Print Network [OSTI]

ignition (HCCI) combustion with detailed chemistry by using the proposed on-the-fly reduction scheme detailed characterizations of in-cylinder behaviors in stratified HCCI engines by incorporating detailed was proposed for HCCI engines in which homogeneous charge was used. However, although termed "homogeneous

Androulakis, Ioannis (Yannis)

399

A DETAILED COMPARISON BETWEEN THE OBSERVED AND SYNTHESIZED PROPERTIES OF A SIMULATED TYPE II SPICULE  

SciTech Connect (OSTI)

We have performed a three-dimensional radiative MHD simulation of the solar atmosphere. This simulation shows a jet-like feature that shows similarities to the type II spicules observed for the first time with Hinode's Solar Optical Telescope. Rapid blueshifted events (RBEs) on the solar disk are associated with these spicules. Observational results suggest they may contribute significantly in supplying the corona with hot plasma. We perform a detailed comparison of the properties of the simulated jet with those of type II spicules (observed with Hinode) and RBEs (with ground-based instruments). We analyze a wide variety of synthetic emission and absorption lines from the simulations including chromospheric (Ca II 8542 A, Ca II H, and H{alpha}) to transition region and coronal temperatures (10,000 K to several million K). We compare their synthetic intensities, line profiles, Doppler shifts, line widths, and asymmetries with observations from Hinode/SOT and EIS, SOHO/SUMER, the Swedish 1 m Solar Telescope, and SDO/AIA. Many properties of the synthetic observables resemble the observations, and we describe in detail the physical processes that lead to these observables. Detailed analysis of the synthetic observables provides insight into how observations should be analyzed to derive information about physical variables in such a dynamic event. For example, we find that line-of-sight superposition in the optically thin atmosphere requires the combination of Doppler shifts and spectral line asymmetry to determine the velocity in the jet. In our simulated type II spicule, the lifetime of the asymmetry of the transition region lines is shorter than that of the coronal lines. Other properties differ from the observations, especially in the chromospheric lines. The mass density of the part of the spicule with a chromospheric temperature is too low to produce significant opacity in chromospheric lines. The synthetic Ca II 8542 A and H{alpha} profiles therefore do not show signal resembling RBEs. These and other discrepancies are described in detail, and we discuss which mechanisms and physical processes may need to be included in the MHD simulations to mimic the thermodynamic processes of the chromosphere and corona, in particular to reproduce type II spicules.

Martinez-Sykora, Juan; De Pontieu, Bart; Pereira, Tiago M. D.; Stern, Julie V. [Lockheed Martin Solar and Astrophysics Laboratory, Palo Alto, CA 94304 (United States); Leenaarts, Jorrit; Carlsson, Mats; Hansteen, Viggo; Van der Voort, Luc Rouppe [Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029 Blindern, N-0315 Oslo (Norway); Tian Hui [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); McIntosh, Scott W., E-mail: j.m.sykora@astro.uio.no [High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO 80307 (United States)

2013-07-01T23:59:59.000Z

400

Combatting Ionic Aggregation using Dielectric Forces Combining Modeling/Simulation and Experimental Results to Explain End-capping of Primary Amine Functionalized Polystyrene  

SciTech Connect (OSTI)

Chain-end functionalization of living poly(styryl)lithium using 1-(3-bromopropyl)-2,2,5,5-tetramethyl-1-aza-2,5-disilacyclo-pentane (BTDP) to generate primary amine end-functionalized polystyrene was investigated using high vacuum anionic polymerization techniques. 13C NMR spectroscopy and Matrix Assisted Laser Desorption Ionization Time of Flight Mass Spectrometry (MALDI-TOF MS) were used to evaluate polymer end-groups and demonstrated that quantitative amine functionalized polymer was attained under appropriate reaction conditions. In general, the polymerization of styrene was conducted in benzene and the end-capping reaction was performed by adding tetrahydrofuran (THF) to the reaction prior to the addition of BTDP in THF at room temperature. Results indicated that approximately 20% THF by volume is required to obtain 100% end-capping free from side reactions. When too little or no THF was present, side reactions such as lithium halogen exchange followed by Wurtz coupling resulted in unfunctionalized head-to-head dimer as well as other byproducts. Modeling and simulation of the solvent effects using hybrid methods (the so-called QM/MM method) suggest that THF effectively dissociated the anionic chain-end aggregation, thereby resulting in the desired primary amine functionalized polymer. Molecular dynamics (MD) simulations were conducted to develop an understanding of the physics of counterions involved in the end-functionalization process.

Messman, Jamie M [ORNL; Goswami, Monojoy [ORNL; Pickel, Deanna L [ORNL; Uhrig, David [ORNL; Sumpter, Bobby G [ORNL; Mays, Jimmy [University of Tennessee, Knoxville (UTK)

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" 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

Testing Results for Nb-Ti, 120-mm-Aperture, Low-B Quadrupole Models for the LHC High-Luminosity Insertion  

E-Print Network [OSTI]

The design and construction of a 120 mm wide-aperture, Nb-Ti superconducting quadrupole magnet for the LHC insertion region is part of a study towards a luminosity upgrade of the LHC at CERN, envisaged for 2020-22. The main challenges for this accelerator quality magnet are to operate reliably with the high heat and radiation loads that are predicted in the insertion magnet regions. Calculations give approximately 500 Watts over the 30-m-long string of insertion magnets, while today LHC is operating for a nominal heat load of 12 Watts. To extract this heat, the model magnets incorporate new features: Open cable insulation, open ground insulation, open magnet structure, and a quench heater that has open channels to help extract the steady state heat load. This paper presents results from tests at room temperature and 1.8 K for the initial model magnet. We report magnet training, transfer function and field quality measurements, quench heater performance, and heat extraction studies using imbedded heaters to si...

Kirby, G A; Bajko, M; Charrondiere, M; Bourcey, N; Datskov, V I; Fessia, P; Feuvrier, J; Galbraith, P; Garcia Tabares, A; Garcia-Perez, J; Granieri, P; Hagen, P; Lorin, C; Perez, J C; Russenschuck, S; Sahner, T; Segreti, M; Todesco, E; Willering, G

2013-01-01T23:59:59.000Z

402

Implementation of the NCN pathway of prompt-NO formation in the detailed reaction mechanism  

SciTech Connect (OSTI)

This work presents revised detailed reaction mechanism for small hydrocarbons combustion with possibly full implementation of available kinetic data related to the prompt NO route via NCN. It was demonstrated that model predictions with the rate constant of reaction CH + N{sub 2} = NCN + H measured by Vasudevan and co-workers are much higher than experimental concentrations of NO in rich premixed flames at atmospheric pressure. Analysis of the correlations of NO formation with calculated concentrations of C{sub 2}O radicals strongly supports the inclusion of reaction between C{sub 2}O and N{sub 2} and reduction of the rate constant of reaction between CH and N{sub 2}. Rate constants of the reactions of NCN consumption were mostly taken from the works of Lin and co-workers. Some of these reactions affect calculated profiles of NCN in flames. Proposed modifications allow accurate prediction of NO formation in lean and rich flames of methane, ethylene, ethane and propane. Agreement of the experiments and the modeling was much improved as compared to the previous Release 0.5 of the Konnov mechanism. Satisfactory agreement with available measurements of NCN radicals in low pressure flames was also demonstrated. (author)

Konnov, A.A. [Department of Mechanical Engineering, Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven (Netherlands)

2009-11-15T23:59:59.000Z

403

EXPERIMENT DETAILS  

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: Networking for the Future of DOE Science WilliamEVDETAILS

404

The model coupling toolkit.  

SciTech Connect (OSTI)

The advent of coupled earth system models has raised an important question in parallel computing: What is the most effective method for coupling many parallel models to form a high-performance coupled modeling system? We present our solution to this problem--The Model Coupling Toolkit (MCT). We explain how our effort to construct the Next-Generation Coupler for NCAR Community Climate System Model motivated us to create this toolkit. We describe in detail the conceptual design of the MCT and explain its usage in constructing parallel coupled models. We present preliminary performance results for the toolkit's parallel data transfer facilities. Finally, we outline an agenda for future development of the MCT.

Larson, J. W.; Jacob, R. L.; Foster, I.; Guo, J.

2001-04-13T23:59:59.000Z

405

CGILS: Results from the First Phase of an International Project to Understand the Physical Mechanisms of Low Cloud Feedbacks in Single Column Models  

SciTech Connect (OSTI)

Large Eddy Models (LES) and Single Column Models (SCM) are used in a surrogate climate change 101 to investigate the physical mechanism of low cloud feedbacks in climate models. Enhanced surface-102 driven boundary layer turbulence and shallow convection in a warmer climate are found to be 103 dominant mechanisms in SCMs.

Zhang, Minghua; Bretherton, Christopher S.; Blossey, Peter; Austin, Phillip A.; Bacmeister, J.; Bony, Sandrine; Brient, Florent; Cheedela, Suvarchal K.; Cheng, Anning; Del Genio, Anthony D.; De Roode, Stephan R.; Endo , Satoshi; Franklin, Charmaine N.; Golaz, Jean-Christophe; Hannay, Cecile; Heus, Thijs; Isotta, Francesco A.; Jean-Louis, Dufresne; Kang, In-Sik; Kawai, Hideaki; Koehler, M.; Larson, Vincent E.; Liu, Yangang; Lock, Adrian; Lohmann, U.; Khairoutdinov, Marat; Molod, Andrea M.; Neggers, Roel; Rasch, Philip J.; Sandu, Irina; Senkbeil, Ryan; Siebesma, A. P.; Siegenthaler-Le Drian, Colombe; Stevens, Bjorn; Suarez, Max; Xu, Kuan-Man; Von Salzen, Knut; Webb, Mark; Wolf, Audrey; Zhao, M.

2013-12-26T23:59:59.000Z

406

Fluctuations and Correlations of net baryon number, electric charge, and strangeness: A comparison of lattice QCD results with the hadron resonance gas model  

E-Print Network [OSTI]

We calculate the quadratic fluctuations of net baryon number, electric charge and strangeness as well as correlations among these conserved charges in (2+1)-flavor lattice QCD at zero chemical potential. Results are obtained using calculations with tree level improved gauge and the highly improved staggered quark (HISQ) actions with almost physical light and strange quark masses at three different values of the lattice cut-off. Our choice of parameters corresponds to a value of 160 MeV for the lightest pseudo scalar Goldstone mass and a physical value of the kaon mass. The three diagonal charge susceptibilities and the correlations among conserved charges have been extrapolated to the continuum limit in the temperature interval 150 MeV net baryon number fluctuations in QCD agree with HRG model calculations while, the net electric charge fluctuations in QCD are about 10% smaller and net strangeness fluctuations are about 20% larger. These findings are relevant to the discussion of freeze-out conditions in relativistic heavy ion collisions.

A. Bazavov; Tanmoy Bhattacharya; C. E. DeTar; H. -T. Ding; Steven Gottlieb; Rajan Gupta; P. Hegde; Urs Heller; F. Karsch; E. Laermann; L. Levkova; Swagato Mukherjee; P. Petreczky; Christian Schmidt; R. A. Soltz; W. Soeldner; R. Sugar; Pavlos M. Vranas

2012-08-11T23:59:59.000Z

407

Integrated Nozzle Flow, Spray, Combustion, & Emission Modeling...  

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

Spray, Combustion, & Emission Modeling using KH-ACT Primary Breakup Model & Detailed Chemistry Integrated Nozzle Flow, Spray, Combustion, & Emission Modeling using KH-ACT Primary...

408

Webinar: Guidance for Filling Out a Detailed H2A Production Case Study  

Broader source: Energy.gov [DOE]

Video recording and text version of the webinar titled, Guidance for Filling Out a Detailed H2A Production Case Study, originally presented on July 9, 2013.

409

River Corridor Cleanup Contract Fiscal Year 2006 Detailed Work Plan: DWP Summary, Volume 1  

SciTech Connect (OSTI)

This detailed work plan provides the scope, cost, and schedule for the Fiscal Year 2006 activities required to support River Corridor cleanup objectives within the directed guidance.

Project Integration

2005-09-26T23:59:59.000Z

410

E-Print Network 3.0 - anatomically detailed mri-derived Sample...  

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

(e.g. grey matter). Small details Source: Duncan, James S. - Departments of Diagnostic Radiology & Electrical Engineering, Yale University Collection: Biology and Medicine Page:...

411

A model-data intercomparison of CO2 exchange across North America: Results from the North American Carbon Program Site Synthesis  

SciTech Connect (OSTI)

Our current understanding of terrestrial carbon processes is represented in various models used to integrate and scale measurements of CO{sub 2} exchange from remote sensing and other spatiotemporal data. Yet assessments are rarely conducted to determine how well models simulate carbon processes across vegetation types and environmental conditions. Using standardized data from the North American Carbon Program we compare observed and simulated monthly CO{sub 2} exchange from 44 eddy covariance flux towers in North America and 22 terrestrial biosphere models. The analysis period spans {approx}220 site-years, 10 biomes, and includes two large-scale drought events, providing a natural experiment to evaluate model skill as a function of drought and seasonality. We evaluate models' ability to simulate the seasonal cycle of CO{sub 2} exchange using multiple model skill metrics and analyze links between model characteristics, site history, and model skill. Overall model performance was poor; the difference between observations and simulations was {approx}10 times observational uncertainty, with forested ecosystems better predicted than nonforested. Model-data agreement was highest in summer and in temperate evergreen forests. In contrast, model performance declined in spring and fall, especially in ecosystems with large deciduous components, and in dry periods during the growing season. Models used across multiple biomes and sites, the mean model ensemble, and a model using assimilated parameter values showed high consistency with observations. Models with the highest skill across all biomes all used prescribed canopy phenology, calculated NEE as the difference between GPP and ecosystem respiration, and did not use a daily time step.

Schwalm, C.R.; Williams, C.A.; Schaefer, K.; Anderson, R.; Arain, M.A.; Baker, I.; Black, T.A.; Chen, G.; Ciais, P.; Davis, K. J.; Desai, A. R.; Dietze, M.; Dragoni, D.; Fischer, M.L.; Flanagan, L.B.; Grant, R.F.; Gu, L.; Hollinger, D.; Izaurralde, R.C.; Kucharik, C.; Lafleur, P.M.; Law, B.E.; Li, L.; Li, Z.; Liu, S.; Lokupitiya, E.; Luo, Y.; Ma, S.; Margolis, H.; Matamala, R.; McCaughey, H.; Monson, R. K.; Oechel, W. C.; Peng, C.; Poulter, B.; Price, D.T.; Riciutto, D.M.; Riley, W.J.; Sahoo, A.K.; Sprintsin, M.; Sun, J.; Tian, H.; Tonitto, C.; Verbeeck, H.; Verma, S.B.

2011-06-01T23:59:59.000Z

412

Reduced Form of Detailed Modeling of Wind Transmission and Intermittency for Use in Other ModelsReduced Form of Detailed Modeling of Wind Transmission and Intermittency for Use in Other Models  

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 -the Mid-Infrared at 278, 298,NIST 800-53 RevisionDivisionReduced intermittency

413

EIA model documentation: World oil refining logistics demand model,``WORLD`` reference manual. Version 1.1  

SciTech Connect (OSTI)

This manual is intended primarily for use as a reference by analysts applying the WORLD model to regional studies. It also provides overview information on WORLD features of potential interest to managers and analysts. Broadly, the manual covers WORLD model features in progressively increasing detail. Section 2 provides an overview of the WORLD model, how it has evolved, what its design goals are, what it produces, and where it can be taken with further enhancements. Section 3 reviews model management covering data sources, managing over-optimization, calibration and seasonality, check-points for case construction and common errors. Section 4 describes in detail the WORLD system, including: data and program systems in overview; details of mainframe and PC program control and files;model generation, size management, debugging and error analysis; use with different optimizers; and reporting and results analysis. Section 5 provides a detailed description of every WORLD model data table, covering model controls, case and technology data. Section 6 goes into the details of WORLD matrix structure. It provides an overview, describes how regional definitions are controlled and defines the naming conventions for-all model rows, columns, right-hand sides, and bounds. It also includes a discussion of the formulation of product blending and specifications in WORLD. Several Appendices supplement the main sections.

Not Available

1994-04-11T23:59:59.000Z

414

Modeling  

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

an implementation of a single-fluid inter- face model in the ALE-AMR code to simulate surface tension effects. The model does not require explicit information on the physical...

415

Comparative evaluation of life cycle assessment models for solid waste management  

SciTech Connect (OSTI)

This publication compares a selection of six different models developed in Europe and America by research organisations, industry associations and governmental institutions. The comparison of the models reveals the variations in the results and the differences in the conclusions of an LCA study done with these models. The models are compared by modelling a specific case - the waste management system of Dresden, Germany - with each model and an in-detail comparison of the life cycle inventory results. Moreover, a life cycle impact assessment shows if the LCA results of each model allows for comparable and consecutive conclusions, which do not contradict the conclusions derived from the other models' results. Furthermore, the influence of different level of detail in the life cycle inventory of the life cycle assessment is demonstrated. The model comparison revealed that the variations in the LCA results calculated by the models for the case show high variations and are not negligible. In some cases the high variations in results lead to contradictory conclusions concerning the environmental performance of the waste management processes. The static, linear modelling approach chosen by all models analysed is inappropriate for reflecting actual conditions. Moreover, it was found that although the models' approach to LCA is comparable on a general level, the level of detail implemented in the software tools is very different.

Winkler, Joerg [Institute for Waste Management and Contaminated Sites Treatment, TU Dresden Faculty of Forestry, Geo and Hydro Sciences, Pratzschwitzer Str. 15, 01796 Pirna (Germany); Bilitewski, Bernd [Institute for Waste Management and Contaminated Sites Treatment, TU Dresden Faculty of Forestry, Geo and Hydro Sciences, Pratzschwitzer Str. 15, 01796 Pirna (Germany)], E-mail: abfall@rcs.urz.tu-dresden.de

2007-07-01T23:59:59.000Z

416

Downscaling Global Land Cover Projections from an Integrated Assessment Model for Use in Regional Analyses: Results and Evaluation for the US from 2005 to 2095  

SciTech Connect (OSTI)

Projections of land cover change generated from Integrated Assessment Models (IAM) and other economic-based models can be applied for analyses of environmental impacts at subregional and landscape scales. For those IAM and economic models that project land use at the sub-continental or regional scale, these projections must be downscaled and spatially distributed prior to use in climate or ecosystem models. Downscaling efforts to date have been conducted at the national extent with relatively high spatial resolution (30m) and at the global extent with relatively coarse spatial resolution (0.5 degree).

West, Tristram O.; Le Page, Yannick LB; Huang, Maoyi; Wolf, Julie; Thomson, Allison M.

2014-06-05T23:59:59.000Z

417

Neutrinoless double-beta decay of 76Ge and 130Te. A correction of the neutrinoless 2\\b{eta}-decay model and a reanalysis of QUORICINO results  

E-Print Network [OSTI]

A correction of the neutrinoless 2\\b{eta}-decay model was proposed which predicted a shift of the 2\\b{eta}0{\

,

2014-01-01T23:59:59.000Z

418

Neutrinoless double-beta decay of 76Ge and 130Te. A correction of the neutrinoless 2\\b{eta}-decay model and a reanalysis of QUORICINO results  

E-Print Network [OSTI]

A correction of the neutrinoless 2\\b{eta}-decay model was proposed which predicted a shift of the 2\\b{eta}0{\

I. V. Kirpichnikov

2014-05-19T23:59:59.000Z

419

Range-separated density-functional theory with random phase approximation: Detailed formalism and illustrative applications  

E-Print Network [OSTI]

Range-separated density-functional theory with random phase approximation: Detailed formalism-body theory, we present the details of a formally exact adiabatic-connection fluctuation-dissipation density-functional´an, Phys. Rev. Lett. 102, 096404 (2009). Range-separated density-functional theory approaches combining

Boyer, Edmond

420

New study details glacier ice loss following ice shelf July 25, 2011  

E-Print Network [OSTI]

and Ted #12;Scambos of the NSIDC produced detailed ice loss maps from 2001 to 2009 for the main tributaryNew study details glacier ice loss following ice shelf collapse July 25, 2011 Contact: Anthony Lane UMBC (410) 455-5793 alane@umbc.edu Katherine Leitzell National Snow and Ice Data Center University

Cambridge, University of

Note: This page contains sample records for the topic "model results detailed" 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

Cyclic Testing of Concrete-Filled Circular Steel Bridge Piers having Encased Fixed-Based Detail  

E-Print Network [OSTI]

Cyclic Testing of Concrete-Filled Circular Steel Bridge Piers having Encased Fixed-Based Detail elements during earthquakes, this paper reports on cyclic inelastic tests executed to determine the maximum strength and ductility of four concrete-filled circular steel piers joined to a foundation detail proposed

Bruneau, Michel

422

Combustion in Homogeneous Charge Compression Ignition Engines: Experiments and Detailed Chemical Kinetic Simulations  

SciTech Connect (OSTI)

Homogeneous charge compression ignition (HCCI) engines are being considered as an alternative to diesel engines. The HCCI concept involves premixing fuel and air prior to induction into the cylinder (as is done in current spark-ignition engine) then igniting the fuel-air mixture through the compression process (as is done in current diesel engines). The combustion occurring in an HCCI engine is fundamentally different from a spark-ignition or Diesel engine in that the heat release occurs as a global autoignition process, as opposed to the turbulent flame propagation or mixing controlled combustion used in current engines. The advantage of this global autoignition is that the temperatures within the cylinder are uniformly low, yielding very low emissions of oxides of nitrogen (NO{sub x}, the chief precursors to photochemical smog). The inherent features of HCCI combustion allows for design of engines with efficiency comparable to, or potentially higher than, diesel engines. While HCCI engines have great potential, several technical barriers exist which currently prevent widespread commercialization of this technology. The most significant challenge is that the combustion timing cannot be controlled by typical in-cylinder means. Means of controlling combustion have been demonstrated, but a robust control methodology that is applicable to the entire range of operation has yet to be developed. This research focuses on understanding basic characteristics of controlling and operating HCCI engines. Experiments and detailed chemical kinetic simulations have been applied to the characterize some of the fundamental operational and design characteristics of HCCI engines. Experiments have been conducted on single and multi-cylinder engines to investigate general features of how combustion timing affects the performance and emissions of HCCI engines. Single-zone modeling has been used to characterize and compare the implementation of different control strategies. Multi-zone modeling has been applied to investigate combustion chamber design with respect to increasing efficiency and reducing emissions in HCCI engines.

Flowers, D L

2002-06-07T23:59:59.000Z

423

Model documentation report: Transportation sector model of the National Energy Modeling System  

SciTech Connect (OSTI)

This report documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model. This document serves three purposes. First, it is a reference document providing a detailed description of TRAN for model analysts, users, and the public. Second, this report meets the legal requirements of the Energy Information Administration (EIA) to provide adequate documentation in support of its statistical and forecast reports (Public Law 93-275, 57(b)(1)). Third, it permits continuity in model development by providing documentation from which energy analysts can undertake model enhancements, data updates, and parameter refinements.

Not Available

1994-03-01T23:59:59.000Z

424

Diffraction Results from CDF  

SciTech Connect (OSTI)

We present final results by the CDF II collaboration on diffractive W and Z production, report on the status of ongoing analyses on diffractive dijet production and on rapidity gaps between jets, and briefly summarize results obtained on exclusive production pointing to their relevance to calibrating theoretical models used to predict exclusive Higgs-boson production at the LHC.

Goulianos, Konstantin

2012-04-01T23:59:59.000Z

425

Chemical kinetics modeling  

SciTech Connect (OSTI)

This project emphasizes numerical modeling of chemical kinetics of combustion, including applications in both practical combustion systems and in controlled laboratory experiments. Elementary reaction rate parameters are combined into mechanisms which then describe the overall reaction of the fuels being studied. Detailed sensitivity analyses are used to identify those reaction rates and product species distributions to which the results are most sensitive and therefore warrant the greatest attention from other experimental and theoretical research programs. Experimental data from a variety of environments are combined together to validate the reaction mechanisms, including results from laminar flames, shock tubes, flow systems, detonations, and even internal combustion engines.

Westbrook, C.K.; Pitz, W.J. [Lawrence Livermore National Laboratory, CA (United States)

1993-12-01T23:59:59.000Z

426

Modeling the Auto-Ignition of Biodiesel Blends with a Multi-Step Model  

SciTech Connect (OSTI)

There is growing interest in using biodiesel in place of or in blends with petrodiesel in diesel engines; however, biodiesel oxidation chemistry is complicated to directly model and existing surrogate kinetic models are very large, making them computationally expensive. The present study describes a method for predicting the ignition behavior of blends of n-heptane and methyl butanoate, fuels whose blends have been used in the past as a surrogate for biodiesel. The autoignition is predicted using a multistep (8-step) model in order to reduce computational time and make this a viable tool for implementation into engine simulation codes. A detailed reaction mechanism for n-heptane-methyl butanoate blends was used as a basis for validating the multistep model results. The ignition delay trends predicted by the multistep model for the n-heptane-methyl butanoate blends matched well with that of the detailed CHEMKIN model for the majority of conditions tested.

Toulson, Dr. Elisa [Michigan State University, East Lansing; Allen, Casey M [Michigan State University, East Lansing; Miller, Dennis J [Michigan State University, East Lansing; McFarlane, Joanna [ORNL; Schock, Harold [Michigan State University, East Lansing; Lee, Tonghun [Michigan State University, East Lansing

2011-01-01T23:59:59.000Z

427

Model documentation report: Commercial Sector Demand Module of the National Energy Modeling System  

SciTech Connect (OSTI)

This report documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Commercial Sector Demand Module. The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated through the synthesis and scenario development based on these components. The NEMS Commercial Sector Demand Module is a simulation tool based upon economic and engineering relationships that models commercial sector energy demands at the nine Census Division level of detail for eleven distinct categories of commercial buildings. Commercial equipment selections are performed for the major fuels of electricity, natural gas, and distillate fuel, for the major services of space heating, space cooling, water heating, ventilation, cooking, refrigeration, and lighting. The algorithm also models demand for the minor fuels of residual oil, liquefied petroleum gas, steam coal, motor gasoline, and kerosene, the renewable fuel sources of wood and municipal solid waste, and the minor services of office equipment. Section 2 of this report discusses the purpose of the model, detailing its objectives, primary input and output quantities, and the relationship of the Commercial Module to the other modules of the NEMS system. Section 3 of the report describes the rationale behind the model design, providing insights into further assumptions utilized in the model development process to this point. Section 3 also reviews alternative commercial sector modeling methodologies drawn from existing literature, providing a comparison to the chosen approach. Section 4 details the model structure, using graphics and text to illustrate model flows and key computations.

NONE

1998-01-01T23:59:59.000Z

428

Detailed gravity survey over a known carbonate reef (Devonian) in Williston basin  

SciTech Connect (OSTI)

A detailed gravity study, conducted over the Shell Golden carbonate reef located in the Winnipegosis Formation (Devonian) of the Williston basin in north-central North Dakota, indicates a massive carbonate platform with several interconnected vertical accumulations, perhaps pinnacle in nature, from this platform. This reef is found at a depth of about 2400 m (8000 ft). Because elevations and north-south positions were surveyed to /+-/3 cm (0.1 ft) and /+-/ 1 (3.3 ft), respectively, an accuracy of 0.01 mgal was obtained. Five profiles were made: three lines running east-west and two lines running north-south, forming a grid pattern over the reef. The distance between each line was 1.6 km (1.0 mi) with gravity-station spacing along each line being 0.4 km (0.25 mi). The Golden reef and most reefs of this nature throughout the North Dakota portion of the Williston basin have been interpreted to be isolated pinnacles with physical dimensions about 60-75 m (200-250 ft) thick and 0.8 km (0.5 mi) in basal diameter. However, analysis of the residual Bouguer gravity anomalies (0.2-0.5 mgal) obtained from this study indicates this reef is more complex than previously thought. The maximum thicknesses of the complex are on the order of 120-185 m (400-600 ft) with compaction anticlines also contributing to the total gravity anomaly. The modeled reef complex extends in a northeast-southwest direction and probably extends beyond the study area along that line.

Braun, S.M.

1988-07-01T23:59:59.000Z

429

Detailed Hydrographic Feature Extraction from High-Resolution LiDAR Data  

SciTech Connect (OSTI)

Detailed hydrographic feature extraction from high-resolution light detection and ranging (LiDAR) data is investigated. Methods for quantitatively evaluating and comparing such extractions are presented, including the use of sinuosity and longitudinal root-mean-square-error (LRMSE). These metrics are then used to quantitatively compare stream networks in two studies. The first study examines the effect of raster cell size on watershed boundaries and stream networks delineated from LiDAR-derived digital elevation models (DEMs). The study confirmed that, with the greatly increased resolution of LiDAR data, smaller cell sizes generally yielded better stream network delineations, based on sinuosity and LRMSE. The second study demonstrates a new method of delineating a stream directly from LiDAR point clouds, without the intermediate step of deriving a DEM. Direct use of LiDAR point clouds could improve efficiency and accuracy of hydrographic feature extractions. The direct delineation method developed herein and termed “mDn”, is an extension of the D8 method that has been used for several decades with gridded raster data. The method divides the region around a starting point into sectors, using the LiDAR data points within each sector to determine an average slope, and selecting the sector with the greatest downward slope to determine the direction of flow. An mDn delineation was compared with a traditional grid-based delineation, using TauDEM, and other readily available, common stream data sets. Although, the TauDEM delineation yielded a sinuosity that more closely matches the reference, the mDn delineation yielded a sinuosity that was higher than either the TauDEM method or the existing published stream delineations. Furthermore, stream delineation using the mDn method yielded the smallest LRMSE.

Danny L. Anderson

2012-05-01T23:59:59.000Z

430

http://www.regulations.gov/#!documentDetail;D=EERE-2014-BT-STD...  

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

http:www.regulations.govdocumentDetail;DEERE-2014-BT-STD-0031-0002 EERE-2014-BT-STD-0031-0002 spreadsheet Sheet "Summary Switching" - Before ME1 19421032v.1 http:...

431

Proof Details for "Performance Analysis of Godard-Based Blind Channel Identification"  

E-Print Network [OSTI]

1 Proof Details for "Performance Analysis of Godard-Based Blind Channel Identification" Philip) The bulk of the proof is spent analyzing the righthand term above. E ^^h(0) i - ^h(0) i 2 2 = E ^^h(0) i 2

Schniter, Philip

432

INITIATIVE MOBILE APPS DEVELOPMENT Description and details about the program or initiative that is being proposed  

E-Print Network [OSTI]

INITIATIVE ­ MOBILE APPS DEVELOPMENT Description and details about the program or initiative using mobile technologies. Adoption of these technologies will allow UWM to communicate with students university vision? What guiding values are applied? Access: Mobile technologies provide more options

Saldin, Dilano

433

Embedding methods for massing and detail design in computer generated design of skyscrapers  

E-Print Network [OSTI]

This thesis proposes a new digital system to construct the massing and details of skyscrapers. It extracts underlying rules and design conventions from significant projects in contemporary skyscraper design practice. These ...

Chen, Shouheng, S.M. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z

434

School of Electrical & Computer Engineering -Undergraduate Post Graduate Activities Detail & History  

E-Print Network [OSTI]

& Computer Engineering - Undergraduate (continued) 2010 Employment Employer Title City State General Motors2010 School of Electrical & Computer Engineering - Undergraduate Post Graduate Activities Detail Engineering undergraduate students from the Class of 2010. Historical data is provided to allow for comparison

Lipson, Michal

435

Elucidating secondary organic aerosol from diesel and gasoline vehicles through detailed characterization of  

E-Print Network [OSTI]

Elucidating secondary organic aerosol from diesel and gasoline vehicles through detailed 19, 2012 (received for review July 22, 2012) Emissions from gasoline and diesel vehicles composition, mass distribu- tion, and organic aerosol formation potential of emissions from gasoline

Silver, Whendee

436

Detailed mining study phase 3: Saba Yoi lignite deposit. Export trade information  

SciTech Connect (OSTI)

The study, conducted by John T. Boyd Company, was funded by the U.S. Trade and Development Agency on behalf of the Electricity Generating Authority of Thailand. The report presents Phase 3 of the feasibility study conducted for the development of the Saba Yoi Coal Mine. The study focuses on technical issues related to the development of the project including geological data and detailed mine development and scheduling. The report is divided into the following sections: (1) General Statement; (2) Summarized Findings; (3) Background; (4) Geology and Resources; (5) Geotechnical/Hydrogeological; (6) Detailed Mine Development; (7) Detailed Mine Production Scheduling; (8) Detailed Mine Analysis; (9) Mine Development and Facilities; (10) Mine Labor and Wages; and (11) Project Economics.

NONE

1994-07-01T23:59:59.000Z

437

Modeling  

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

a single-fluid diffuse interface model in the ALE-AMR hydrodynamics code to simulate surface tension effects. We show simula- tions and compare them to other surface tension...

438

Technical Manual for the SAM Biomass Power Generation Model  

SciTech Connect (OSTI)

This technical manual provides context for the implementation of the biomass electric power generation performance model in the National Renewable Energy Laboratory's (NREL's) System Advisor Model (SAM). Additionally, the report details the engineering and scientific principles behind the underlying calculations in the model. The framework established in this manual is designed to give users a complete understanding of behind-the-scenes calculations and the results generated.

Jorgenson, J.; Gilman, P.; Dobos, A.

2011-09-01T23:59:59.000Z

439

Detailed discussion of a linear electric field frequency shift (important for next generation) electric dipole moment searches) induced in confined gases by a magnetic field gradient: Implications for electric dipole moment experiments (II)  

E-Print Network [OSTI]

The search for particle electric dipole moments represents a most promising way to search for physics beyond the standard model. A number of groups are planning a new generation of experiments using stored gases of various kinds. In order to achieve the target sensitivities it will be necessary to deal with the systematic error resulting from the interaction of the well-known E x v field with magnetic field gradients (often referred to as the geometric phase effect [9,10]). This interaction produces a frequency shift linear in the electric field, mimicking an edm. In this work we introduce an analytic model for the correlation function which determines the behavior of the frequency shift [11], and show in detail how it depends on the operating conditions of the experiment. We also propose a method to directly measure ths correlation function under the exact conditions of a given experiment.

A. L. Barabanov; R. Golub; S. K. Lamoreaux

2005-12-20T23:59:59.000Z

440

Comparison of ?Z-structure function models  

SciTech Connect (OSTI)

The ?Z-box is an important contribution to the proton's weak charge. The ?Z-box is calculated dispersively and depends on ?Z-structure functions, F{sub 1,2,3}{sup ?Z}(x,Q{sup 2}). At present there is no data for these structure functions and they must be modeled by modifying existing fits to electromagnetic data. Each group that has studied the ?Z-box used different modifications. The results of the PVDIS experiment at Jefferson Lab may provide a first test of the validity of each group's models. I present details of the different models and their predictions for the PVDIS result.

Rislow, Benjamin C. [Department of Physics, College of William and Mary, Williamsburg, VA 23187 (United States)

2013-11-07T23:59:59.000Z

Note: This page contains sample records for the topic "model results detailed" 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

Modelling  

E-Print Network [OSTI]

Modeling of technical machines became a standard technique since computer became powerful enough to handle the amount of data relevant to the specific system. Simulation of an existing physical device requires the knowledge of all relevant quantities. Electric fields given by the surrounding boundary as well as magnetic fields caused by coils or permanent magnets have to be known. Internal sources for both fields are sometimes taken into account, such as space charge forces or the internal magnetic field of a moving bunch of charged particles. Used solver routines are briefly described and some bench-marking is shown to estimate necessary computing times for different problems. Different types of charged particle sources will be shown together with a suitable model to describe the physical model. Electron guns are covered as well as different ion sources (volume ion sources, laser ion sources, Penning ion sources, electron resonance ion sources, and H$^-$-sources) together with some remarks on beam transport.

Spädtke, P

2013-01-01T23:59:59.000Z

442

Users guide for the hydroacoustic coverage assessment model (HydroCAM)  

SciTech Connect (OSTI)

A model for predicting the detection and localization performance of hydroacoustic monitoring networks has been developed. The model accounts for major factors affecting global-scale acoustic propagation in the ocean. including horizontal refraction, travel time variability due to spatial and temporal fluctuations in the ocean, and detailed characteristics of the source. Graphical user interfaces are provided to setup the models and visualize the results. The model produces maps of network detection coverage and localization area of uncertainty, as well as intermediate results such as predicted path amplitudes, travel time and travel time variance. This Users Guide for the model is organized into three sections. First a summary of functionality available in the model is presented, including example output products. The second section provides detailed descriptions of each of models contained in the system. The last section describes how to run the model, including a summary of each data input form in the user interface.

Farrell, T., LLNL

1997-12-01T23:59:59.000Z

443

Survey of thermal-hydraulic models of commercial nuclear power plants  

SciTech Connect (OSTI)

A survey of the thermal-hydraulic models of nuclear power plants has been performed to identify the NRC's current analytical capabilities for critical event response. The survey also supports ongoing research for accident management. The results of the survey are presented here. The PC database which records detailed data on each model is described.

Determan, J.C.; Hendrix, C.E.

1992-12-01T23:59:59.000Z

444

Survey of thermal-hydraulic models of commercial nuclear power plants  

SciTech Connect (OSTI)

A survey of the thermal-hydraulic models of nuclear power plants has been performed to identify the NRC`s current analytical capabilities for critical event response. The survey also supports ongoing research for accident management. The results of the survey are presented here. The PC database which records detailed data on each model is described.

Determan, J.C.; Hendrix, C.E.

1992-12-01T23:59:59.000Z

445

Electron emission resulting from fast ion impact on thin metal foils: Implications of these data for development of track structure models  

SciTech Connect (OSTI)

Experimental information useful in improving and testing theoretical models of energy deposition and redistribution in particle-condensed phase media is discussed. An overview of information available from previous, and ongoing, studies of the electron emission from thin foils is presented and the need for doubly differential electron energy and angular distribution data stressed. Existing data are used to demonstrate that precisely known, and controllable, surface and bulk conditions of the condensed-phase media are required for experimental studies of this type. Work in progress and improvements planned for future studies at the Pacific Northwest Laboratory are outlined.

DuBois, R.D.; Drexler, C.G.

1993-04-01T23:59:59.000Z

446

Search results | Department of Energy  

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

Enter terms Search Showing 1 - 1 of 1 result. Download The BEAM Project: Building Efficient Architectural Models This activity allows students the opportunity to explore...

447

Model documentation: Natural Gas Transmission and Distribution Model of the National Energy Modeling System; Volume 1  

SciTech Connect (OSTI)

The Natural Gas Transmission and Distribution Model (NGTDM) is a component of the National Energy Modeling System (NEMS) used to represent the domestic natural gas transmission and distribution system. NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the Energy Information Administration (EIA) and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. This report documents the archived version of NGTDM that was used to produce the natural gas forecasts used in support of the Annual Energy Outlook 1994, DOE/EIA-0383(94). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic design, provides detail on the methodology employed, and describes the model inputs, outputs, and key assumptions. It is intended to fulfill the legal obligation of the EIA to provide adequate documentation in support of its models (Public Law 94-385, Section 57.b.2). This report represents Volume 1 of a two-volume set. (Volume 2 will report on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.) Subsequent chapters of this report provide: (1) an overview of the NGTDM (Chapter 2); (2) a description of the interface between the National Energy Modeling System (NEMS) and the NGTDM (Chapter 3); (3) an overview of the solution methodology of the NGTDM (Chapter 4); (4) the solution methodology for the Annual Flow Module (Chapter 5); (5) the solution methodology for the Distributor Tariff Module (Chapter 6); (6) the solution methodology for the Capacity Expansion Module (Chapter 7); (7) the solution methodology for the Pipeline Tariff Module (Chapter 8); and (8) a description of model assumptions, inputs, and outputs (Chapter 9).

NONE

1994-02-24T23:59:59.000Z

448

Proposal to Acquire Experimental Data and to Model the Results with a Monte Carlo Calculation of a Secondary Source Correction Factor for Area Source Acquisitions of Holdup y-PHA Measurements  

SciTech Connect (OSTI)

This report describes an interference observed when acquiring y-ray holdup data. The interference comes from secondary contaminated surfaces that contribute to the y-ray signal when acquiring data in the area source configuration. It is often the case that these unwanted contributions can not be isolated and eliminated, so it is necessary to mathematically correct for the contribution. In this report we propose experiments to acquire the necessary data to determine the experimental correction factor specifically for highly enriched uranium holdup measurements. We then propose to use the MCNP Monte Carlo computer code to model the contribution in several acquisition configurations and for multiple interfering y-ray energies. Results will provide a model for calculation of this secondary source correction factor for future holdup measurements. We believe the results of the experiments and modeling of the data acquired in this proposal will have a significant impact on deactivation and de commissioning activities throughout the DOE weapons complex.

Dewberry, R.

2003-02-10T23:59:59.000Z

449

Table S1. Mixed-model ANOVA and Tukey's HSD results for the diversity of co-occurring ant species in plots. Sites were locations within 5 different forest stands within  

E-Print Network [OSTI]

Table S1. Mixed-model ANOVA and Tukey's HSD results for the diversity of co- occurring ant species.64 0.0385 year*site*ground*ant 4 0.08581728 0.02145432 0.20 0.9400 Tukey's Studentized Range (HSD) Tests for Number of species. Means with the same letter are not significantly different. Tukey Grouping

450

Energy efficient residence: research results  

SciTech Connect (OSTI)

This report on the design, construction, and monitoring of an energy efficient residence and a conventional comparison home by the National Association of Home Builders Research Foundation, Inc. The report describes the two homes in considerable detail, summarizes the results of the energy and other measurements, and evaluates many of the energy conservation techniques used. Finally, these results are synthesized with the foundation's other energy conservation experience into two lists of energy saving design tips for homes in both colder and warmer climates. Most of the design tips are accompanied by brief comments intended to aid in their interpretation and use.

Johnson, R.J.

1980-12-01T23:59:59.000Z

451

Impaired Oral Reading in Surface Dyslexia: Detailed Comparison of a Patient and a  

E-Print Network [OSTI]

Impaired Oral Reading in Surface Dyslexia: Detailed Comparison of a Patient and a Connectionist connectionist network. ¤ Both MP and the network exhibit the characteristic pattern of surface dyslexia system masters some but not all exception words, and that surface dyslexia arises when this system

Plaut, David C.

452

A Detailed Analysis of the Nonlinear Dynamics of the Electric Step Motor J. Reiss, F. Alin*  

E-Print Network [OSTI]

A Detailed Analysis of the Nonlinear Dynamics of the Electric Step Motor J. Reiss, F. Alin* , M.robert@univ-reims.fr Abstract The electric step motor is an electromechanical device which converts electrical pulses of stationarity in the system. We show that the electric step motor may function as a low-dimensional chaotic

Reiss, Josh

453

Detailed Studies of a HighDensity Polarized Hydrogen Gas Target for Storage Rings  

E-Print Network [OSTI]

Detailed Studies of a High­Density Polarized Hydrogen Gas Target for Storage Rings Kirsten Zapfe 1 (1996) 293 Abstract A high­density target of polarized atomic hydrogen gas for applications in storage rings was produced by injecting atoms from an atomic beam source into a T­shaped storage cell

454

Safety First Safety Last Safety Always OSHA has developed extensive regulations detailing operator  

E-Print Network [OSTI]

Safety First Safety Last Safety Always OSHA has developed extensive regulations detailing operator Operation Safety Tip #3 Chance takers are accident makers. #12;Additional Information for Presenters Review the information provided on the reverse side of this safety tip sheet. Please refrain from reading the information

Minnesota, University of

455

Detailed design report for an operational phase panel-closure system  

SciTech Connect (OSTI)

Under contract to Westinghouse Electric Corporation (Westinghouse), Waste Isolation Division (WID), IT Corporation has prepared a detailed design of a panel-closure system for the Waste Isolation Pilot Plant (WIPP). Preparation of this detailed design of an operational-phase closure system is required to support a Resource Conservation and Recovery Act (RCRA) Part B permit application and a non-migration variance petition. This report describes the detailed design for a panel-closure system specific to the WIPP site. The recommended panel-closure system will adequately isolate the waste-emplacement panels for at least 35 years. This report provides detailed design and material engineering specifications for the construction, emplacement, and interface-grouting associated with a panel-closure system at the WIPP repository, which would ensure that an effective panel-closure system is in place for at least 35 years. The panel-closure system provides assurance that the limit for the migration of volatile organic compounds (VOC) will be met at the point of compliance, the WIPP site boundary. This assurance is obtained through the inherent flexibility of the panel-closure system.

NONE

1996-01-11T23:59:59.000Z

456

Detailed Energy Data Collection for Miscellaneous and Electronic Loads in a  

E-Print Network [OSTI]

Background Buildings account for 40% of the total primary energy consumption in the U.S., with 22% consumed% of the primary energy used in U.S. buildings, and this share is projected to increase for the foreseeable futureLBNL-6192E Detailed Energy Data Collection for Miscellaneous and Electronic Loads in a Commercial

457

Detailed Energy Data Collection for Miscellaneous and Electronic Loads in a Commercial Office Building  

E-Print Network [OSTI]

Detailed Energy Data Collection for Miscellaneous and Electronic Loads in a Commercial Office Miscellaneous and electronic loads (MELs) consume about 20% of the primary energy used in U.S. buildings and accurate data to inform MELs energy use. Introduction Background Buildings account for 40% of the total

Culler, David E.

458

Methods for detailed energy data collection of miscellaneous and electronic loads in a commercial office building  

E-Print Network [OSTI]

Methods for detailed energy data collection of miscellaneous and electronic loads in a commercial and electronic loads (MELs) consume about 20% of the primary energy used in U.S. buildings, and this share Buildings account for 40% of the total primary energy con- sumption in the U.S., with 22% consumed

California at Berkeley, University of

459

PREDICTION OF DELAM INATION IN WIND TURBINE BLADE STRUCTURAL DETAILS John F. Mandell, Douglas S. Cairns  

E-Print Network [OSTI]

in Reference 3, available on the Sandia web site www.sandia.gov/Renewable_Energy/Wind_Energy/. DELAMINATION1 PREDICTION OF DELAM INATION IN WIND TURBINE BLADE STRUCTURAL DETAILS John F. Mandell, Douglas S materials structures such as wind turbine blades. Design methodologies to prevent such failures have

460

*Please note: Some details in syllabus are subject to change City University London and Utrecht University  

E-Print Network [OSTI]

*Please note: Some details in syllabus are subject to change City University London and Utrecht on the course website) In-residence London/Utrecht: 8 July ­ 10 August 2012 Programme requires a total of seven and Utrecht, the Netherlands. This innovative programme provides an ideal opportunity for students to develop

Martin, Ralph R.

Note: This page contains sample records for the topic "model results detailed" 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

Combining Global and Local Virtual Lights for Detailed Glossy Illumination Tomas Davidovic  

E-Print Network [OSTI]

approach Figure 1: Comparison of our approach with Virtual Spherical Lights (VSLs). Left: VSLs fail of these algorithms in design applications. Recently, virtual spherical lights [Hasan et al. 2009] were introducedCombining Global and Local Virtual Lights for Detailed Glossy Illumination Tom´as Davidovic

Bala, Kavita

462

2008-01-0333 Detailed Effects of a Diesel Particulate Filter on the Reduction  

E-Print Network [OSTI]

2008-01-0333 Detailed Effects of a Diesel Particulate Filter on the Reduction of Chemical Species of Wisconsin-Madison Copyright © 2008 SAE International ABSTRACT Diesel particulate filters are designed to reduce the mass emissions of diesel particulate matter and have been proven to be effective

Wu, Mingshen

463

Chemistry Major, Biological Emphasis See www.chem.utah.edu for details or contact  

E-Print Network [OSTI]

Chemistry Major, Biological Emphasis See www.chem.utah.edu for details or contact Professor Richard Ernst (ernst@chem.utah.edu; 801-581-8639) Chemistry Core Courses (required of all majors): CHEM 1210, 1220 General Chemistry I, II (4, 4) both SF (or 1211/1221 honors versions) CHEM 1215, 1225 General

Simons, Jack

464

Chemistry Major, Geology Emphasis See www.chem.utah.edu for details or contact  

E-Print Network [OSTI]

Chemistry Major, Geology Emphasis See www.chem.utah.edu for details or contact Professor Richard Ernst (ernst@chem.utah.edu; 801-581-8639) Chemistry Core Courses (required of all majors): CHEM 1210, 1220 General Chemistry I, II (4, 4) both SF (or 1211/1221 honors versions) CHEM 1215, 1225 General

Simons, Jack

465

Chemistry Major, Professional Emphasis See www.chem.utah.edu for details or contact  

E-Print Network [OSTI]

Chemistry Major, Professional Emphasis See www.chem.utah.edu for details or contact Professor Richard Ernst (ernst@chem.utah.edu; 801-581-8639) Chemistry Core Courses (required of all majors): CHEM 1210, 1220 General Chemistry I, II (4, 4) both SF (or 1211/1221 honors versions) CHEM 1215, 1225

Simons, Jack

466

Chemistry Major, Business Emphasis See www.chem.utah.edu for details or contact  

E-Print Network [OSTI]

Chemistry Major, Business Emphasis See www.chem.utah.edu for details or contact Professor Richard Ernst (ernst@chem.utah.edu; 801-581-8639) Chemistry Core Courses (required of all majors): CHEM 1210, 1220 General Chemistry I, II (4, 4) both SF (or 1211/1221 honors versions) CHEM 1215, 1225 General

Simons, Jack

467

COMBINED THERMAL MEASUREMENT AND SIMULATION FOR THE DETAILED ANALYSIS OF FOUR OCCUPIED LOW-ENERGY BUILDINGS  

E-Print Network [OSTI]

COMBINED THERMAL MEASUREMENT AND SIMULATION FOR THE DETAILED ANALYSIS OF FOUR OCCUPIED LOW-ENERGY BUILDINGS U.D.J. Gieseler, F.D. Heidt1 , W. Bier Division of Building Physics and Solar Energy, University energy and temperature measurements of occupied buildings very well. These buildings repre- sent small

Gieseler, Udo D. J.

468

Soclety of Petroteum Engineers CT Scan and Neural Network Technology for Construction of Detailed  

E-Print Network [OSTI]

of Detailed Distribution of Residual Oil Saturation During Waterflooding A. Garg', A.R. Kovscek2, M. Nikravesh reservoirs. Fractured petroleum reservoirs provide over 20 ?ZO of the world oil reserves [1]. Examples of prolific fmctured reservoirs are: the Monterey Shales in California (estimated tens of billions of barrels

Patzek, Tadeusz W.

469

Detailed chemical kinetic reaction mechanism for biodiesel components methyl stearate and methyl oleate  

E-Print Network [OSTI]

Detailed chemical kinetic reaction mechanism for biodiesel components methyl stearate and methyl are developed for two of the five major components of biodiesel fuel, methyl stearate and methyl oleate renewable sources, can reduce net emissions of greenhouse gases. An important class of biodiesel fuels

Paris-Sud XI, Université de

470

Detailed chemical kinetic reaction mechanisms for soy and rapeseed biodiesel fuels  

E-Print Network [OSTI]

Detailed chemical kinetic reaction mechanisms for soy and rapeseed biodiesel fuels C.K. Westbrooka chemical kinetic reaction mechanism is developed for the five major components of soy biodiesel and rapeseed biodiesel fuels. These components, methyl stearate, methyl oleate, methyl linoleate, methyl

Paris-Sud XI, Université de

471

Program Director/Principal Investigator (Last, First, Middle): DETAILED BUDGET FOR INITIAL BUDGET PERIOD  

E-Print Network [OSTI]

Program Director/Principal Investigator (Last, First, Middle): DETAILED BUDGET FOR INITIAL BUDGET SUBTOTAL DIRECT COSTS FOR INITIAL BUDGET PERIOD (Item 7a, Face Page) $ CONSORTIUM/CONTRACTUAL COSTS FACILITIES AND ADMINISTRATIVE COSTS TOTAL DIRECT COSTS FOR INITIAL BUDGET PERIOD $ PHS 398 (Rev. 6/09) Page

Ungerleider, Leslie G.

472

Program Director/Principal Investigator (Last, First, Middle): DETAILED BUDGET FOR NEXT BUDGET  

E-Print Network [OSTI]

Program Director/Principal Investigator (Last, First, Middle): DETAILED BUDGET FOR NEXT BUDGET by category) OTHER EXPENSES (Itemize by category) SUBTOTAL DIRECT COSTS FOR NEXT BUDGET PERIOD $ CONSORTIUM FOR NEXT BUDGET PERIOD (Item 8a, Face Page) $ Page Form Page 2PHS 2590 (Rev. 08/12) #12;

Baker, Chris I.

473

Program Director/Principal Investigator (Last, First, Middle): DETAILED BUDGET FOR INITIAL BUDGET PERIOD  

E-Print Network [OSTI]

Program Director/Principal Investigator (Last, First, Middle): DETAILED BUDGET FOR INITIAL BUDGET SUBTOTAL DIRECT COSTS FOR INITIAL BUDGET PERIOD (Item 7a, Face Page) $ CONSORTIUM/CONTRACTUAL COSTS FACILITIES AND ADMINISTRATIVE COSTS TOTAL DIRECT COSTS FOR INITIAL BUDGET PERIOD $ Page Form Page 4 PHS 398

Baker, Chris I.

474

biodiversity over the past two decades, but, except for a few flagship species, detailed  

E-Print Network [OSTI]

biodiversity over the past two decades, but, except for a few flagship species, detailed studies disturbance from increased navigation are also likely to negatively impact the riverine biodiversity. To alleviate these problems and conserve biodiversity, establishing nature reserves in biodiversity hotspots

Li, Zhanqing

475

Detailed Analysis of the Microbial Population in Malaysian Spontaneous Cocoa Pulp Fermentations  

E-Print Network [OSTI]

, lactic acid bacteria (LAB) and acetic acid bacteria (AAB) are the key players of this fermentationDetailed Analysis of the Microbial Population in Malaysian Spontaneous Cocoa Pulp Fermentations), Leuven, Belgium, 3 Barry Callebaut AG, Zurich, Switzerland Abstract The fermentation of cocoa pulp is one

476

Change of Personal Details Form Current Name and Date of Birth  

E-Print Network [OSTI]

from list below. Change of Name Change of Date of Birth (Primary) (Secondary) -Birth Certificate (or extract) -Citizenship Papers -Medicare Card -Passport -Birth Certificate (or Extract) -Valid DriversChange of Personal Details Form Current Name and Date of Birth Current Name Date of Birth Correct

477

Presented at 1999 EWEC Effects of Materials Parameters and Design Details on the Fatigue of  

E-Print Network [OSTI]

of Composite Materials for Wind Turbine Blades John F. Mandell and Herbert J. Sutherland* Daniel D. SamborskyPresented at 1999 EWEC Effects of Materials Parameters and Design Details on the Fatigue Wind Energy Technology Dept. Dept. of Chemical Engineering Sandia National Laboratories Montana State

478

Rental Rates & Details Karen Clark Events Coordinator Mildred Lane Kemper Art Museum  

E-Print Network [OSTI]

Rental Rates & Details Karen Clark · Events Coordinator · Mildred Lane Kemper Art Museum Washington_clark@ wustl.edu kemperartmuseum.wustl.edu Updated 10.08.14 Consider the Mildred Lane Kemper Art Museum for your next event. Designed by the award-winning architect Fumihiko Maki, the Kemper Art Museum

Subramanian, Venkat

479

A Quantum Production Model  

E-Print Network [OSTI]

The production system is a theoretical model of computation relevant to the artificial intelligence field allowing for problem solving procedures such as hierarchical tree search. In this work we explore some of the connections between artificial intelligence and quantum computation by presenting a model for a quantum production system. Our approach focuses on initially developing a model for a reversible production system which is a simple mapping of Bennett's reversible Turing machine. We then expand on this result in order to accommodate for the requirements of quantum computation. We present the details of how our proposition can be used alongside Grover's algorithm in order to yield a speedup comparatively to its classical counterpart. We discuss the requirements associated with such a speedup and how it compares against a similar quantum hierarchical search approach.

Luís Tarrataca; Andreas Wichert

2015-02-06T23:59:59.000Z

480

A 2D Random Walk Mobility Model for Location Management Studies in Wireless Networks  

E-Print Network [OSTI]

crossing rate' and `dwell time' studies using the same model with slight modifications for the square cell, namely the square cell and the hexagonal cell have been detailed. The analytical results obtained for location update rates and dwell times have been validated using simulated and published results

Shenoy, Nirmala

Note: This page contains sample records for the topic "model results detailed" 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

Organic tank safety project: Preliminary results of energetics and thermal behavior studies of model organic nitrate and/or nitrite mixtures and a simulated organic waste  

SciTech Connect (OSTI)

As a result of years of production and recovery of nuclear defense materials and subsequent waste management at the Hanford Site, organic-bearing radioactive high-level wastes (HLW) are currently stored in large (up to 3. ML) single-shell storage tanks (SSTs). Because these wastes contain both fuels (organics) and the oxidants nitrate and nitrite, rapid energetic reactions at certain conditions could occur. In support of Westinghouse Hanford Company`s (WHC) efforts to ensure continued safe storage of these organic- and oxidant-bearing wastes and to define the conditions necessary for reactions to occur, we measured the thermal sensitivities and thermochemical and thermokinetic properties of mixtures of selected organics and sodium nitrate and/or nitrite and a simulated Hanford organic-bearing waste using thermoanalytical technologies. These thermoanalytical technologies are used by chemical reactivity hazards evaluation organizations within the chemical industry to assess chemical reaction hazards.

Scheele, R.D.; Sell, R.L.; Sobolik, J.L.; Burger, L.L.

1995-08-01T23:59:59.000Z

482

Geologic Framework Model Analysis Model Report  

SciTech Connect (OSTI)

The purpose of this report is to document the Geologic Framework Model (GFM), Version 3.1 (GFM3.1) with regard to data input, modeling methods, assumptions, uncertainties, limitations, and validation of the model results, qualification status of the model, and the differences between Version 3.1 and previous versions. The GFM represents a three-dimensional interpretation of the stratigraphy and structural features of the location of the potential Yucca Mountain radioactive waste repository. The GFM encompasses an area of 65 square miles (170 square kilometers) and a volume of 185 cubic miles (771 cubic kilometers). The boundaries of the GFM were chosen to encompass the most widely distributed set of exploratory boreholes (the Water Table or WT series) and to provide a geologic framework over the area of interest for hydrologic flow and radionuclide transport modeling through the unsaturated zone (UZ). The depth of the model is constrained by the inferred depth of the Tertiary-Paleozoic unconformity. The GFM was constructed from geologic map and borehole data. Additional information from measured stratigraphy sections, gravity profiles, and seismic profiles was also considered. This interim change notice (ICN) was prepared in accordance with the Technical Work Plan for the Integrated Site Model Process Model Report Revision 01 (CRWMS M&O 2000). The constraints, caveats, and limitations associated with this model are discussed in the appropriate text sections that follow. The GFM is one component of the Integrated Site Model (ISM) (Figure l), which has been developed to provide a consistent volumetric portrayal of the rock layers, rock properties, and mineralogy of the Yucca Mountain site. The ISM consists of three components: (1) Geologic Framework Model (GFM); (2) Rock Properties Model (RPM); and (3) Mineralogic Model (MM). The ISM merges the detailed project stratigraphy into model stratigraphic units that are most useful for the primary downstream models and the repository design. These downstream models include the hydrologic flow models and the radionuclide transport models. All the models and the repository design, in turn, will be incorporated into the Total System Performance Assessment (TSPA) of the potential radioactive waste repository block and vicinity to determine the suitability of Yucca Mountain as a host for the repository. The interrelationship of the three components of the ISM and their interface with downstream uses are illustrated in Figure 2.

R. Clayton

2000-12-19T23:59:59.000Z

483

MODELING AND SIMULATION OF SOLID FLUIDIZATION IN A RESIN COLUMN  

SciTech Connect (OSTI)

The objective of the present work is to model the resin particles within the column during fluidization and sedimentation processes using computation fluid dynamics (CFD) approach. The calculated results will help interpret experimental results, and they will assist in providing guidance on specific details of testing design and establishing a basic understanding of particle’s hydraulic characteristics within the column. The model is benchmarked against the literature data and the test data (2003) conducted at Savannah River Site (SRS). The paper presents the benchmarking results and the modeling predictions of the SRS resin column using the improved literature correlations applicable for liquid-solid granular flow.

Lee, S.

2014-06-24T23:59:59.000Z

484

Direct-Steam Linear Fresnel Performance Model for NREL's System Advisor Model  

SciTech Connect (OSTI)

This paper presents the technical formulation and demonstrated model performance results of a new direct-steam-generation (DSG) model in NREL's System Advisor Model (SAM). The model predicts the annual electricity production of a wide range of system configurations within the DSG Linear Fresnel technology by modeling hourly performance of the plant in detail. The quasi-steady-state formulation allows users to investigate energy and mass flows, operating temperatures, and pressure drops for geometries and solar field configurations of interest. The model includes tools for heat loss calculation using either empirical polynomial heat loss curves as a function of steam temperature, ambient temperature, and wind velocity, or a detailed evacuated tube receiver heat loss model. Thermal losses are evaluated using a computationally efficient nodal approach, where the solar field and headers are discretized into multiple nodes where heat losses, thermal inertia, steam conditions (including pressure, temperature, enthalpy, etc.) are individually evaluated during each time step of the simulation. This paper discusses the mathematical formulation for the solar field model and describes how the solar field is integrated with the other subsystem models, including the power cycle and optional auxiliary fossil system. Model results are also presented to demonstrate plant behavior in the various operating modes.

Wagner, M. J.; Zhu, G.

2012-09-01T23:59:59.000Z

485

A Detailed Study of FDIRC Prototype with Waveform Digitizing Electronics in Cosmic Ray Telescope Using 3D Tracks.  

SciTech Connect (OSTI)

We present a detailed study of a novel Cherenkov imaging detector called the Focusing DIRC (FDIRC) with waveform digitizing electronics. In this test study, the FDIRC prototype has been instrumented with seven Hamamatsu H-8500 MaPMTs. Waveforms from ~450 pixels are digitized with waveform sampling electronics based on the BLAB2 ASIC, operating at a sampling speed of ~2.5 GSa/s. The FDIRC prototype was tested in a large cosmic ray telescope (CRT) providing 3D muon tracks with ~1.5 mrad angular resolution and muon energy of Emuon greater than 1.6 GeV. In this study we provide a detailed analysis of the tails in the Cherenkov angle distribution as a function of various variables, compare experimental results with simulation, and identify the major contributions to the tails. We demonstrate that to see the full impact of these tails on the Cherenkov angle resolution, it is crucial to use 3D tracks, and have a full understanding of the role of ambiguities. These issues could not be fully explored in previous FDIRC studies where the beam was perpendicular to the quartz radiator bars. This work is relevant for the final FDIRC prototype of the PID detector at SuperB, which will be tested this year in the CRT setup.

Nishimura, K

2012-07-01T23:59:59.000Z

486

A Detailed Study of FDIRC Prototype with Waveform Digitizing Electronics in Cosmic Ray Telescope Using 3D Tracks  

SciTech Connect (OSTI)

We present a detailed study of a novel Cherenkov imaging detector called the Focusing DIRC (FDIRC) with waveform digitizing electronics. In this test study, the FDIRC prototype has been instrumented with seven Hamamatsu H-8500 MaPMTs. Waveforms from {approx}450 pixels are digitized with waveform sampling electronics based on the BLAB2 ASIC, operating at a sampling speed of {approx}2.5 GSa/s. The FDIRC prototype was tested in a large cosmic ray telescope (CRT) providing 3D muon tracks with {approx}1.5 mrad angular resolution and muon energy of E{sub muon} > 1.6 GeV. In this study we provide a detailed analysis of the tails in the Cherenkov angle distribution as a function of various variables, compare experimental results with simulation, and identify the major contributions to the tails. We demonstrate that to see the full impact of these tails on the Cherenkov angle resolution, it is crucial to use 3D tracks, and have a full understanding of the role of ambiguities. These issues could not be fully explored in previous FDIRC studies where the beam was perpendicular to the quartz radiator bars. This work is relevant for the final FDIRC prototype of the PID detector at SuperB, which will be tested this year in the CRT setup.

Nishimura, K.; Dey, B.; /Hawaii U. /UC, Riverside; Aston, D.; Leith, D.W.G.S.; Ratcliff, B.; /SLAC; Roberts, D.; /Maryland U.; Ruckman, L.; /Hawaii U.; Shtol, D.; /Novosibirsk, IYF; Varner, G.S.; /Hawaii U.; Va'vra, J.; Vavra, Jerry; /SLAC; ,

2012-07-30T23:59:59.000Z

487

Methane dissociative chemisorption and detailed balance on Pt(111): Dynamical constraints and the modest influence of tunneling  

SciTech Connect (OSTI)

A dynamically biased (d-) precursor mediated microcanonical trapping (PMMT) model of the activated dissociative chemisorption of methane on Pt(111) is applied to a wide range of dissociative sticking experiments, and, by detailed balance, to the methane product state distributions from the thermal associative desorption of adsorbed hydrogen with coadsorbed methyl radicals. Tunneling pathways were incorporated into the d-PMMT model to better replicate the translational energy distribution of the desorbing methane product from the laser induced thermal reaction of coadsorbed hydrogen and methyl radicals occurring near T{sub s} = 395 K. Although tunneling is predicted to be inconsequential to the thermal dissociative chemisorption of CH{sub 4} on Pt(111) at the high temperatures of catalytic interest, once the temperature drops to 395 K the tunneling fraction of the reactive thermal flux reaches 15%, and as temperatures drop below 275 K the tunneling fraction exceeds 50%. The d-PMMT model parameters of (E{sub 0} = 58.9?kJ/mol,?s = 2,??{sub v} = 0.40) describe the apparent threshold energy for CH{sub 4}/Pt(111) dissociative chemisorption, the number of surface oscillators involved in the precursor complex, and the efficacy of molecular vibrational energy to promote reaction, relative to translational energy directed along the surface normal. Molecular translations parallel to the surface and rotations are treated as spectator degrees of freedom. Transition state vibrational frequencies are derived from generalized gradient approximation-density functional theory electronic structure calculations. The d-PMMT model replica