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Note: This page contains sample records for the topic "analyzes cash flow" from the National Library of EnergyBeta (NLEBeta).
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1

Solyndra Facts vs. Fiction: Cash Flow Modeling | Department of Energy  

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

You are here You are here Home » Solyndra Facts vs. Fiction: Cash Flow Modeling Solyndra Facts vs. Fiction: Cash Flow Modeling September 23, 2011 - 5:25pm Addthis Questions have been raised about a quote selectively pulled from an Aug. 20, 2009 email to make it look like Solyndra would run out of cash by Sept. 2011. To be clear, the analysis addressed in that email did not refer to Solyndra's corporate cash flow, but rather the cash flow for a subsidiary of Solyndra - the "Fab 2 Project Company." The cash flow models never said that Solyndra (the parent company) would run short of cash in September 2011. The email noted that the subsidiary was projected to have relatively low levels of cash in one particular month, and that the parent company would need to make up any potential shortfall.

2

A Look Inside the Cash Flow Opportunity Calculator FINAL  

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

Cash Flow Opportunity (CFO) Calculator was developed to address the "we don't have the money" objection that many organizations face when trying to implement energy efficiency...

3

A Look Inside the Cash Flow Opportunity Calculator FINAL  

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

A Look Inside the Cash Flow Opportunity (CFO) Calculator: A Look Inside the Cash Flow Opportunity (CFO) Calculator: Calculations and Methodology Background The Cash Flow Opportunity (CFO) Calculator was developed to address the "we don't have the money" objection that many organizations face when trying to implement energy efficiency projects, and to help facility managers translate energy savings into "financial speak." It is the result of proven field experiences that have been used to sell energy efficiency projects to decision-makers around the country. It uses simple financial arguments familiar to all financial managers. This document was prepared in response to numerous requests by users to show the calulations at work behind the worksheets. It will explain the logic behind each worksheet and the reason why the worksheet is included in the package.

4

Introduction to the Cash Flow Opportunity Calculator Spreadsheet | ENERGY  

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

the Cash Flow Opportunity Calculator Spreadsheet the Cash Flow Opportunity Calculator Spreadsheet Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In This Section Campaigns Commercial building design Communications resources Energy management guidance Financial resources Portfolio Manager Products and purchasing Recognition Research and reports Service and product provider (SPP) resources Success stories

5

A Look Inside the Cash Flow Opportunity Calculator: Calculations and  

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

A Look Inside the Cash Flow Opportunity Calculator: Calculations A Look Inside the Cash Flow Opportunity Calculator: Calculations and Methodology Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In This Section Campaigns Commercial building design Communications resources Energy management guidance Financial resources Portfolio Manager Products and purchasing Recognition Research and reports Service and product provider (SPP) resources

6

Geothermal loan guaranty cash flow model: description and users' manual  

SciTech Connect

This is the users guide for the Geothermal Loan Guaranty Cash Flow Model (GCFM). GCFM is a Fortran code which designs and costs geothermal fields and electric power plants. It contains a financial analysis module which performs life cycle costing analysis taking into account various types of taxes, costs and financial structures. The financial module includes a discounted cash flow feature which calculates a levelized breakeven price for each run. The user's guide contains descriptions of the data requirements and instructions for using the model.

Keimig, M.A.; Rosenberg, J.I.; Entingh, D.J.

1980-11-01T23:59:59.000Z

7

Infrastructure Analysis Tools: A Focus on Cash Flow Analysis (Presentation)  

DOE Green Energy (OSTI)

NREL has developed and maintains a variety of infrastructure analysis models for the U.S. Department of Energy. Business case analysis has recently been added to this tool set. This presentation focuses on cash flow analysis. Cash flows depend upon infrastructure costs, optimized spatially and temporally, and assumptions about financing and revenue. NREL has incorporated detailed metrics on financing and incentives into the models. Next steps in modeling include continuing to collect feedback on regional/local infrastructure development activities and 'roadmap' dynamics, and incorporating consumer preference assumptions on infrastructure to provide direct feedback between vehicles and station rollout.

Melaina, M.; Penev, M.

2012-09-01T23:59:59.000Z

8

Cash Flow and Discount Rate news estimation: which method to choose?  

E-Print Network (OSTI)

news 6.1 Generation of financial statements and expectationsNEWS Generation of financial statements and expectationsabout future cash flows Financial statements of the firm are

Khimich, Natalya V.

2012-01-01T23:59:59.000Z

9

QUANTIFYING RESIDENTIAL PV ECONOMICS IN THE US PAYBACK vs. CASH FLOW  

E-Print Network (OSTI)

QUANTIFYING RESIDENTIAL PV ECONOMICS IN THE US --- PAYBACK vs. CASH FLOW DETERMINATION OF FAIR -- the paper discusses why payback may not be the most appropriate measure for residential PV applications. For residential applications, this value is currently set at residential net-metered retail rates. We present

Perez, Richard R.

10

Verifying a secure information flow analyzer  

Science Conference Proceedings (OSTI)

Denotational semantics for a substantial fragment of Java is formalized by deep embedding in PVS, making extensive use of dependent types. A static analyzer for secure information flow for this language is proved correct, that is, it enforces noninterference.

David A. Naumann

2005-08-01T23:59:59.000Z

11

Converting 15-Minute Interval Electricity Load Data into Reduced Demand, Energy Reduction and Cash Flow  

E-Print Network (OSTI)

Whole-building-electric (WBE) 15-minute interval data is an extremely low-cost, easy approach to reap an immediate reduction in energy consumption. With the advance of lower cost Internet based metering technology integrated with TCP/IP Internet communications, equipment costs and installation issues are not the issues as were in the past. The challenge is to be able to interpret the data and then implement actions to correct operational and equipment problems and anomalies. This paper will address the types of data acquisition equipment and systems available and the different components of a data. Lastly, actual graphs of data will be presented to demonstrate how to dissect and analyze a data set and then implement measures that will optimize operations and maintenance of which will effect a reduction in energy costs.

Herrin, D. G.

2007-12-01T23:59:59.000Z

12

Chapter 06 - Cash  

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

. Cash 6-1 . Cash 6-1 CHAPTER 6 CASH 1. INTRODUCTION. a. Purpose. This chapter provides Departmental procedures and policy for handling cash and transactions in which cash is involved. It supplements the Treasury Financial Manual (TFM) and the Department of the Treasury (Treasury) Financial Management Service's (FMS) supplement to the TFM, "Cash Management Made Easy." Additional information is available on the FMS website at www.fms.treas.gov. b. Applicability. The applicability of this chapter is specified in Chapter 1, "Accounting Overview." The Power Marketing Administrations (PMAs) are subject to all financial policies and procedures of the Department unless

13

Cash for Coolers  

E-Print Network (OSTI)

2009. “The Implied Cost of Carbon Dioxide under the Cash forwhile also reducing carbon dioxide emissions and otherwithout accounting for carbon dioxide emissions or other

Davis, Lucas W.; Fuchs, Alan; Gertler, Paul J.

2012-01-01T23:59:59.000Z

14

AnalyzeHOLE: An Integrated Wellbore Flow Analysis Tool  

SciTech Connect

Conventional interpretation of flow logs assumes that hydraulic conductivity is directly proportional to flow change with depth. However, well construction can significantly alter the expected relation between changes in fluid velocity and hydraulic conductivity. Strong hydraulic conductivity contrasts between lithologic intervals can be masked in continuously screened wells. Alternating intervals of screen and blank casing also can greatly complicate the relation between flow and hydraulic properties. More permeable units are not necessarily associated with rapid fluid-velocity increases. Thin, highly permeable units can be misinterpreted as thick and less permeable intervals or not identified at all. These conditions compromise standard flow-log interpretation because vertical flow fields are induced near the wellbore. AnalyzeHOLE, an integrated wellbore analysis tool for simulating flow and transport in wells and aquifer systems, provides a better alternative for simulating and evaluating complex well-aquifer system interaction. A pumping well and adjacent aquifer system are simulated with an axisymmetric, radial geometry in a two-dimensional MODFLOW model. Hydraulic conductivities are distributed by depth and estimated with PEST by minimizing squared differences between simulated and measured flows and drawdowns. Hydraulic conductivity can vary within a lithology but variance is limited with regularization. Transmissivity of the simulated system also can be constrained to estimates from single-well, pumping tests. Water-quality changes in the pumping well are simulated with simple mixing models between zones of differing water quality. These zones are differentiated by backtracking thousands of particles from the well screens with MODPATH. An Excel spreadsheet is used to interface the various components of AnalyzeHOLE by (1) creating model input files, (2) executing MODFLOW, MODPATH, PEST, and supporting FORTRAN routines, and (3) importing and graphically displaying pertinent results.

Keith J. Halford

2009-10-01T23:59:59.000Z

15

CRSP CASH PROJECTIONS  

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

CASH PROJECTIONS CASH PROJECTIONS FY 2012-FY 2014 ($ IN THOUSANDS) KEY: = more than $70 million = less than $70 million more than $35 million = less than $35 million ACTUAL FORECAST ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL ACTUAL FORECAST ACTUAL ACTUAL FORECAST FORECAST FY 2012 FY 2013 OCT 2012 NOV 2012 DEC 2012 JAN 2013 FEB 2013 MAR 2013 APR 2013 MAY 2013 JUN 2013 JUL 2013 AUG 2013 SEP 2013 SEP 2013 FY 2013 FY 2014 FY 2015 Note REVENUES Firm 141,638 $ 150,984 $ 9,356 $ 14,951 $ 15,015 $ 13,131 $ 12,470 $ 11,088 $ 11,817 $ 11,754 $ 12,954 $ 19,737 $ 13,914 $ 12,582 $ 10,652 $ 156,839 $ 152,591 $ 164,182 $ a WRP 32,170 $ 62,774 $ 755 $ 2,418

16

Computational Methods for Analyzing Fluid Flow Dynamics from Digital Imagery  

SciTech Connect

The main goal (long term) of this work is to perform computational dynamics analysis and quantify uncertainty from vector fields computed directly from measured data. Global analysis based on observed spatiotemporal evolution is performed by objective function based on expected physics and informed scientific priors, variational optimization to compute vector fields from measured data, and transport analysis proceeding with observations and priors. A mathematical formulation for computing flow fields is set up for computing the minimizer for the problem. An application to oceanic flow based on sea surface temperature is presented.

Luttman, A.

2012-03-30T23:59:59.000Z

17

Financial Management: Cash vs. Accrual Accounting  

E-Print Network (OSTI)

This publication explains the differences between cash and accrual accounting and suggests how farmers and ranchers can get the best of both accounting systems. There are sample income statements and a table to illustrate the adjustment of cash basis records to approximate accrual basis records.

Klinefelter, Danny A.; McCorkle, Dean; Klose, Steven

2008-10-17T23:59:59.000Z

18

Analyzing flow patterns in unsaturated fractured rock of Yucca Mountain using an integrated modeling approach  

E-Print Network (OSTI)

heat flow simulations use the 3-D thermal model grid (Figuremodel grid, which is used for gas flow and ambient heat flowgrid showing a smaller model domain, used for modeling gas and heat

Wu, Yu-Shu; Lu, Guoping; Zhang, Keni; Pan, Lehua; Bodvarsson, Gudmundur S.

2008-01-01T23:59:59.000Z

19

PC-based fluid and heat transfer analyzer for two-phase flow in pipes.  

E-Print Network (OSTI)

??Modeling the simultaneous flow of gas and liquid or two-phase gas-liquid flow in pipes is a key aspect in petroleum production. These models can enhance… (more)

Afonja, Gbolahan.

2006-01-01T23:59:59.000Z

20

BIIDSS GL Inquiry Reports CRSP CASH STATUS  

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

BIIDSS GL Inquiry Reports BIIDSS GL Inquiry Reports CRSP CASH STATUS SEPTEMBER 2013 ($ IN THOUSANDS) GENERAL SALT SEED- ROCKY DESERT LEDGER DESCRIPTION FUND LAKE SKADEE DOLORES MOUNTAIN SW TOTALS CASH 101002 PY UNDISBURSED RAF 118 $ - $ - $ - $ - $ 118 $ VAF - $ - $ - $ - $ - $ - $ VMF 41,453 $ 35 $ 579 $ (3,076) $ (1,181) $ 37,810 $ VRF (63,318) $ 2,139 $ 8,487 $ 61,337 $ 128,883 $ 137,528 $ 101003 CY COLLECTIONS VMF 118,825 $ - $ - $ 43,600 $ 46,030 $ 208,455 $ VRF (8,415) $ 884 $ 2,313 $ 987 $ (43,335) $ (47,566) $ 101004 CY DISBURSEMENTS RAF (27) $ -

Note: This page contains sample records for the topic "analyzes cash flow" 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

Analyzing Unsatirated Flow Patterns in Fractured Rock Using an Integrated Modeling Approach  

Science Conference Proceedings (OSTI)

Characterizing percolation patterns in unsaturated fractured rock has posed a greater challenge to modeling investigations than comparable saturated zone studies, because of the heterogeneous nature of unsaturated media and the great number of variables impacting unsaturated flow. This paper presents an integrated modeling methodology for quantitatively characterizing percolation patterns in the unsaturated zone of Yucca Mountain, Nevada, a proposed underground repository site for storing high-level radioactive waste. The modeling approach integrates a wide variety of moisture, pneumatic, thermal, and isotopic geochemical field data into a comprehensive three-dimensional numerical model for modeling analyses. It takes into account the coupled processes of fluid and heat flow and chemical isotopic transport in Yucca Mountain's highly heterogeneous, unsaturated fractured tuffs. Modeling results are examined against different types of field-measured data and then used to evaluate different hydrogeological conceptualizations and their results of flow patterns in the unsaturated zone. In particular, this model provides a much clearer understanding of percolation patterns and flow behavior through the unsaturated zone, both crucial issues in assessing repository performance. The integrated approach for quantifying Yucca Mountain's flow system is demonstrated to provide a practical modeling tool for characterizing flow and transport processes in complex subsurface systems.

Y.S. Wu; G. Lu; K. Zhang; L. Pan; G.S. Bodvarsson

2006-08-03T23:59:59.000Z

22

A combined ultrasonic flow meter and binary vapour mixture analyzer for the ATLAS silicon tracker  

E-Print Network (OSTI)

An upgrade to the ATLAS silicon tracker cooling control system may require a change from C3F8 (octafluoro-propane) evaporative coolant to a blend containing 10-25% of C2F6 (hexafluoro-ethane). Such a change will reduce the evaporation temperature to assure thermal stability following radiation damage accumulated at full LHC luminosity. Central to this upgrade is a new ultrasonic instrument in which sound transit times are continuously measured in opposite directions in flowing gas at known temperature and pressure to deduce the C3F8/C2F6 flow rate and mixture composition. The instrument and its Supervisory, Control and Data Acquisition (SCADA) software are described in this paper. Several geometries for the instrument are in use or under evaluation. An instrument with a pinched axial geometry intended for analysis and measurement of moderate flow rates has demonstrated a mixture resolution of 3.10-3 for C3F8/C2F6 molar mixtures with 20%C2F6, and a flow resolution of 2% of full scale for mass flows up to 30gs-1. In mixtures of widely-differing molecular weight (mw), higher mixture precision is possible: a sensitivity of <5.10-5 to leaks of C3F8 into part of the ATLAS tracker nitrogen envelope (mw difference 160) has been seen. An instrument with an angled sound path geometry has been developed for use at high fluorocarbon mass flow rates of around 1.2 kgs-1 - corresponding to full flow in a new 60kW thermosiphon recirculator under construction for the ATLAS silicon tracker. Extensive computational fluid dynamics studies were performed to determine the preferred geometry (ultrasonic transducer spacing and placement, together with the sound crossing angle with respect to the vapour flow direction). A prototype with 45deg crossing angle has demonstrated a flow resolution of 1.9% of full scale for linear flow velocities up to 15 ms-1. The instrument has many potential applications.

R. Bates; M. Battistin; S. Berry; J. Berthoud; A. Bitadze; P. Bonneau; J. Botelho-Direito; N. Bousson; G. Boyd; G. Bozza; E. Da Riva; C. Degeorge; B. DiGirolamo; M. Doubek; D. Giugni; J. Godlewski; G. Hallewell; S. Katunin; D. Lombard; M. Mathieu; S. McMahon; K. Nagai; E. Perez-Rodriguez; C. Rossi; A. Rozanov; V. Vacek; M. Vitek; L. Zwalinski

2012-10-17T23:59:59.000Z

23

Vehicle Technologies Office: Fact #587: September 7, 2009 Cash...  

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

7, 2009 Cash for Clunkers Program - Fuel Economy Improvement to someone by E-mail Share Vehicle Technologies Office: Fact 587: September 7, 2009 Cash for Clunkers Program - Fuel...

24

Analyzing flow patterns in unsaturated fractured rock of YuccaMountain using an integrated modeling approach  

SciTech Connect

This paper presents a series of modeling investigations to characterize percolation patterns in the unsaturated zone of Yucca Mountain, Nevada, a proposed underground repository site for storing high-level radioactive waste. The investigations are conducted using a modeling approach that integrates a wide variety of moisture, pneumatic, thermal, and isotopic geochemical field data into a comprehensive three-dimensional numerical model through model calibration. This integrated modeling approach, based on a dual-continuum formulation, takes into account the coupled processes of fluid and heat flow and chemical isotopic transport in Yucca Mountain's highly heterogeneous, unsaturated fractured tuffs. In particular, the model results are examined against different types of field-measured data and used to evaluate different hydrogeological conceptual models and their effects on flow patterns in the unsaturated zone. The objective of this work to provide understanding of percolation patterns and flow behavior through the unsaturated zone, which is a crucial issue in assessing repository performance.

Wu, Yu-Shu; Lu, Guoping; Zhang, Keni; Pan, Lehua; Bodvarsson,Gudmundur S.

2003-11-03T23:59:59.000Z

25

PTC, ITC, or Cash Grant? Measuring the Value of Stimulus to Wind Power  

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

PTC, ITC, or Cash Grant? Measuring the Value of Stimulus to Wind Power PTC, ITC, or Cash Grant? Measuring the Value of Stimulus to Wind Power Projects in the United States Speaker(s): Mark Bolinger Date: January 26, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Ryan Wiser The financial crisis of 2008/2009 spawned two major stimulus packages in the U.S. that, in combination, have fundamentally reshaped the federal policy landscape for wind power. Most notably, qualifying wind projects can now, for a limited time only, choose either a 30% investment tax credit (ITC) or a 30% cash grant in lieu of the 10-year production tax credit (PTC) that wind has historically received. This presentation analyzes the impact of this newfound choice of federal incentives on wind power development in the U.S., focusing not only on the relative "face value"

26

DistFlow ODE: Modeling, Analyzing and Controlling Long Distribution Feeder  

E-Print Network (OSTI)

We consider a linear feeder connecting multiple distributed loads and generators to the sub-station. Voltage is controlled directly at the sub-station, however, voltage down the line shifts up or down, in particular depending on if the feeder operates in the power export regime or power import regime. Starting from this finite element description of the feeder, assuming that the consumption/generation is distributed heterogeneously along the feeder, and following the asymptotic homogenization approach, we derive simple low-parametric ODE model of the feeder. We also explain how the homogeneous ODE modeling is generalized to account for other distributed effects, e.g. for inverter based and voltage dependent control of reactive power. The resulting system of the DistFlow-ODEs, relating homogenized voltage to flows of real and reactive power along the lines, admits computationally efficient analysis in terms of the minimal number of the feeder line "media" parameters, such as the ratio of the inductance-to-resi...

Wang, Danhua; Chertkov, Michael

2012-01-01T23:59:59.000Z

27

Cashing Out Employer-Paid Parking: A Precedent for Congestion Pricing?  

E-Print Network (OSTI)

the proposed cash-out requirement does not prohibit, tax, orparking, the cash-out requirement does not apply until thefrom the cash-out requirement, but this does not seemto be a

Shoup, Donald C.

1993-01-01T23:59:59.000Z

28

Using predictive analysis to improve invoice-to-cash collection  

Science Conference Proceedings (OSTI)

It is commonly agreed that accounts receivable (AR) can be a source of financial difficulty for firms when they are not efficiently managed and are underperforming. Experience across multiple industries shows that effective management of AR and overall ... Keywords: accounts receivable, invoice to cash, knowledge discovery, order to cash, payment collection, predictive modeling

Sai Zeng; Prem Melville; Christian A. Lang; Ioana Boier-Martin; Conrad Murphy

2008-08-01T23:59:59.000Z

29

Illinois Turning Landfill Trash into Future Cash | Department of Energy  

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

Turning Landfill Trash into Future Cash Turning Landfill Trash into Future Cash Illinois Turning Landfill Trash into Future Cash September 28, 2010 - 5:35pm Addthis Illinois Turning Landfill Trash into Future Cash Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs Will County, Illinois officials yesterday formally broke ground on a new $7 million project (that includes $1 million of Energy Efficiency Conservation Block Grant funds) to turn methane gas from the Prairie View Landfill into electricity in a partnership with Waste Management. Will County will receive revenue from the sale of the gas created from decomposing garbage which will be harnessed and converted to generate 4.8 megawatts of green electrical power and used to power up to 8,000 homes. The future revenue generated from the sale of the gas and the sale of the

30

Risk Weighted Cash Flow, a Communication Tool for Engineers and ...  

Science Conference Proceedings (OSTI)

Abstract Scope, New technology projects, particularly those involving first-of-a- kind metallurgical ... DRI-based Continuous Steelmaking: From Theory to Practice.

31

Risk, Return and Cash Flow Characteristics of Infrastructure Fund Investments ?  

E-Print Network (OSTI)

The authors would like to thank Nico Engel, Christian Figge, Christian Fingerle and the participants

Florian Bitsch; Axel Buchner; Christoph Kaserer

2010-01-01T23:59:59.000Z

32

Introduction to the Cash Flow Opportunity Calculator Spreadsheet...  

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

Calculator is an interactive calculator that helps quantify the cost of delaying investment in upgrades by addressing three critical questions: How much new energy efficiency...

33

Investment–cash flow sensitivities, credit rationing and financing ...  

Science Conference Proceedings (OSTI)

Jan 7, 2009 ... tion criteria (size, age, dividend payout, access to public debt) usually .... fifth subgroup of firm-year observations which they define as ... interest rate and is therefore equivalent to saying that the price for ... sample size and the population of the Universe. ..... law (300/1975) which states that workers fired by.

34

Small Employer Quality Jobs 7-Year Cash Incentive (Oklahoma) | Department  

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

Employer Quality Jobs 7-Year Cash Incentive (Oklahoma) Employer Quality Jobs 7-Year Cash Incentive (Oklahoma) Small Employer Quality Jobs 7-Year Cash Incentive (Oklahoma) < Back Eligibility Agricultural Commercial Construction Fuel Distributor Industrial Installer/Contractor Investor-Owned Utility Municipal/Public Utility Nonprofit Retail Supplier Rural Electric Cooperative Systems Integrator Transportation Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Home Weatherization Water Solar Wind Program Info State Oklahoma Program Type Grant Program Performance-Based Incentive Provider Oklahoma Department of Commerce This program provides incentive payments to a qualifying small employer (90 employees or less). The payments may reach as high as 5% of new taxable payroll and last for up to seven years. Annual salaries must meet at least

35

Los Alamos' New Virtualized Data Center Saves Energy and Cash |  

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

Alamos' New Virtualized Data Center Saves Energy and Cash Alamos' New Virtualized Data Center Saves Energy and Cash Los Alamos' New Virtualized Data Center Saves Energy and Cash March 7, 2011 - 3:15pm Addthis It takes 8,900 kilowatt hours to provide electricity to one U.S. house for a year. With the energy saved annually through Infrastructure on Demand, LANL can power 216 homes. | Photo Courtesy of LANL It takes 8,900 kilowatt hours to provide electricity to one U.S. house for a year. With the energy saved annually through Infrastructure on Demand, LANL can power 216 homes. | Photo Courtesy of LANL Sarah LaMonaca Communications Specialist, Office of Energy Efficiency & Renewable Energy What are the key facts? Data centers are responsible for nearly 2% of U.S. electricity consumption -- a price tag of $4.5 billion.

36

Cash, Money Laundering, and the Size of Underground Economy  

E-Print Network (OSTI)

Givenavastempiricalevidencethatcashiswidelyusedinthe underground economy, inter-governmental bodies like FATF recommend policy measures aimed at limitation of cash and at combat of money laundering. We show that there is no simple monotone relationship between policy and the size of underground economy, so that the policy has at best a limited scope.

Alexei Deviatov

2009-01-01T23:59:59.000Z

37

Transient analyzer  

SciTech Connect

The design and design philosophy of a high performance, extremely versatile transient analyzer is described. This sub-system was designed to be controlled through the data acquisition computer system which allows hands off operation. Thus it may be placed on the experiment side of the high voltage safety break between the experimental device and the control room. This analyzer provides control features which are extremely useful for data acquisition from PPPL diagnostics. These include dynamic sample rate changing, which may be intermixed with multiple post trigger operations with variable length blocks using normal, peak to peak or integrate modes. Included in the discussion are general remarks on the advantages of adding intelligence to transient analyzers, a detailed description of the characteristics of the PPPL transient analyzer, a description of the hardware, firmware, control language and operation of the PPPL transient analyzer, and general remarks on future trends in this type of instrumentation both at PPPL and in general. (auth)

Muir, M.D.

1975-01-01T23:59:59.000Z

38

Will You Be Trading in Your Clunker for Cash--and a More Efficient Vehicle?  

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

Will You Be Trading in Your Clunker for Cash--and a More Efficient Will You Be Trading in Your Clunker for Cash--and a More Efficient Vehicle? Will You Be Trading in Your Clunker for Cash--and a More Efficient Vehicle? August 6, 2009 - 11:43am Addthis On Tuesday, Amy told you about the Car Allowance Rebate System (CARS) Program, widely known as "Cash-for-Clunkers," which provides an incentive to trade in your old vehicle for a new, fuel-efficient model. Will you be trading in your clunker for cash--and a more efficient vehicle? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. Please comment with your answers, and also feel free to respond to other comments. Addthis Related Articles You Can Still Save on the Road -- Even with No Cash for Clunkers

39

DIFFERENTIAL ANALYZER  

DOE Patents (OSTI)

Improvements in analog eomputing machines of the class capable of evaluating differential equations, commonly termed differential analyzers, are described. In general form, the analyzer embodies a plurality of basic computer mechanisms for performing integration, multiplication, and addition, and means for directing the result of any one operation to another computer mechanism performing a further operation. In the device, numerical quantities are represented by the rotation of shafts, or the electrical equivalent of shafts.

Sorensen, E.G.; Gordon, C.M.

1959-02-10T23:59:59.000Z

40

Off-line compatible electronic cash method and system  

DOE Patents (OSTI)

An off-line electronic cash system having an electronic coin, a bank B, a payee S, and a user U with an account at the bank B as well as a user password z.sub.u,i, has a method for performing an electronic cash transfer. An electronic coin is withdrawn from the bank B by the user U and an electronic record of the electronic coin is stored by the bank B. The coin is paid to the payee S by the user U. The payee S deposits the coin with the bank B. A determination is made that the coin is spent and the record of the coin is deleted by the bank B. A further deposit of the same coin after the record is deleted is determined. Additionally, a determination is made which user U originally withdrew the coin after deleting the record. To perform these operations a key pair is generated by the user, including public and secret signature keys. The public signature key along with a user password z.sub.u,i and a withdrawal amount are sent to the bank B by the user U. In response, the bank B sends a coin to the user U signed by the secret key of the bankindicating the value of the coin and the public key of the user U. The payee S transmits a challenge counter to the user U prior to receiving the coin.

Kravitz, David W. (Albuquerque, NM); Gemmell, Peter S. (Albuquerque, NM); Brickell, Ernest F. (Albuquerque, NM)

1998-01-01T23:59:59.000Z

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


41

Off-line compatible electronic cash method and system  

DOE Patents (OSTI)

An off-line electronic cash system having an electronic coin, a bank B, a payee S, and a user U with an account at the bank B as well as a user password z{sub u,i}, has a method for performing an electronic cash transfer. An electronic coin is withdrawn from the bank B by the user U and an electronic record of the electronic coin is stored by the bank B. The coin is paid to the payee S by the user U. The payee S deposits the coin with the bank B. A determination is made that the coin is spent and the record of the coin is deleted by the bank B. A further deposit of the same coin after the record is deleted is determined. Additionally, a determination is made which user U originally withdrew the coin after deleting the record. To perform these operations a key pair is generated by the user, including public and secret signature keys. The public signature key along with a user password z{sub u,i} and a withdrawal amount are sent to the bank B by the user U. In response, the bank B sends a coin to the user U signed by the secret key of the bank indicating the value of the coin and the public key of the user U. The payee S transmits a challenge counter to the user U prior to receiving the coin. 16 figs.

Kravitz, D.W.; Gemmell, P.S.; Brickell, E.F.

1998-11-03T23:59:59.000Z

42

A Management Tool for Analyzing CHP Natural Gas Liquids Recovery System  

E-Print Network (OSTI)

The objective of this research is to develop a management tool for analyzing combined heat and power (CHP) natural gas liquids (NGL) recovery systems. The methodology is developed around the central ideas of product recovery, possible recovery levels, and the flexibility of the process. These ideas led to the design of the CHP-NGL recovery system and the development of the equipment sizing and economic analysis methods. Requirements for sizing refrigeration units, heat exchangers, and pumps are discussed and demonstrated. From the data sheets it is possible to gather costs associated with the project and demonstrate the economic feasibility of the system. The amount of NGL recovered, heating value, payback period, cash flow, net present value of money, and the internal rate of return are calculated and demonstrated to be favorable to this project.

Olsen, C.; Kozman, T. A.; Lee, J.

2008-01-01T23:59:59.000Z

43

Oxygen analyzer  

DOE Patents (OSTI)

An oxygen analyzer which identifies and classifies microgram quantities of oxygen in ambient particulate matter and for quantitating organic oxygen in solvent extracts of ambient particulate matter. A sample is pyrolyzed in oxygen-free nitrogen gas (N.sub.2), and the resulting oxygen quantitatively converted to carbon monoxide (CO) by contact with hot granular carbon (C). Two analysis modes are made possible: (1) rapid determination of total pyrolyzable oxygen obtained by decomposing the sample at 1135.degree. C., or (2) temperature-programmed oxygen thermal analysis obtained by heating the sample from room temperature to 1135.degree. C. as a function of time. The analyzer basically comprises a pyrolysis tube containing a bed of granular carbon under N.sub.2, ovens used to heat the carbon and/or decompose the sample, and a non-dispersive infrared CO detector coupled to a mini-computer to quantitate oxygen in the decomposition products and control oven heating.

Benner, William H. (Danville, CA)

1986-01-01T23:59:59.000Z

44

Oxygen analyzer  

DOE Patents (OSTI)

An oxygen analyzer which identifies and classifies microgram quantities of oxygen in ambient particulate matter and for quantitating organic oxygen in solvent extracts of ambient particulate matter. A sample is pyrolyzed in oxygen-free nitrogen gas (N/sub 2/), and the resulting oxygen quantitatively converted to carbon monoxide (CO) by contact with hot granular carbon (C). Two analysis modes are made possible: (1) rapid determination of total pyrolyzable obtained by decomposing the sample at 1135/sup 0/C, or (2) temperature-programmed oxygen thermal analysis obtained by heating the sample from room temperature to 1135/sup 0/C as a function of time. The analyzer basically comprises a pyrolysis tube containing a bed of granular carbon under N/sub 2/, ovens used to heat the carbon and/or decompose the sample, and a non-dispersive infrared CO detector coupled to a mini-computer to quantitate oxygen in the decomposition products and control oven heating.

Benner, W.H.

1984-05-08T23:59:59.000Z

45

MULTICHANNEL ANALYZER  

DOE Patents (OSTI)

A multichannel pulse analyzer having several window amplifiers, each amplifier serving one group of channels, with a single fast pulse-lengthener and a single novel interrogation circuit serving all channels is described. A pulse followed too closely timewise by another pulse is disregarded by the interrogation circuit to prevent errors due to pulse pileup. The window amplifiers are connected to the pulse lengthener output, rather than the linear amplifier output, so need not have the fast response characteristic formerly required.

Kelley, G.G.

1959-11-10T23:59:59.000Z

46

An Analysis of Coordination Mechanisms for the U.S. Cash Supply Chain  

Science Conference Proceedings (OSTI)

The overuse of its currency processing facilities by depository institutions (DIs) has motivated the Federal Reserve (Fed) to impose its new cash recirculation policy. This overuse is characterized by the practice of cross-shipping, where a DI both deposits ... Keywords: cash supply chain, coordination, cross shipping, fit sorting

Milind Dawande; Mili Mehrotra; Vijay Mookerjee; Chelliah Sriskandarajah

2010-03-01T23:59:59.000Z

47

Ormat Technologies Inc. Ormat Technologies, Inc. Announces a Non-Cash  

Open Energy Info (EERE)

Ormat Technologies Inc. Ormat Technologies, Inc. Announces a Non-Cash Ormat Technologies Inc. Ormat Technologies, Inc. Announces a Non-Cash Pre-Tax Charge for Impairment to Its North Brawley Geothermal Power Plant Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Ormat Technologies Inc. Ormat Technologies, Inc. Announces a Non-Cash Pre-Tax Charge for Impairment to Its North Brawley Geothermal Power Plant Author Ormat Technologies Inc. Published Publisher Not Provided, Date Not Provided DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Ormat Technologies Inc. Ormat Technologies, Inc. Announces a Non-Cash Pre-Tax Charge for Impairment to Its North Brawley Geothermal Power Plant Citation Ormat Technologies Inc.. Ormat Technologies Inc. Ormat Technologies, Inc. Announces a Non-Cash Pre-Tax Charge for Impairment to Its North Brawley

48

You Can Still Save on the Road -- Even with No Cash for Clunkers |  

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

You Can Still Save on the Road -- Even with No Cash for Clunkers You Can Still Save on the Road -- Even with No Cash for Clunkers You Can Still Save on the Road -- Even with No Cash for Clunkers August 26, 2009 - 1:16pm Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy Just about everybody by now has heard of the Car Allowance Rebate System (CARS) Program, better known as "Cash for Clunkers," which had pumped $1.9 billion worth of incentives into the ailing car industry by last Thursday, according to the Department of Transportation. The red-hot program enticed about a half-a-million eligible buyers to trade in their late-model cars for new, more fuel-efficient vehicles by throwing in a cool $3,500 to $4,500 toward their purchase. Pretty sweet motivational tool if you ask me.

49

Will You Be Trading in Your Clunker for Cash--and a More Efficient...  

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

Related Articles You Can Still Save on the Road -- Even with No Cash for Clunkers Do You Drive a Hybrid Electric Vehicle? Thinking About Buying a Car this Summer? Read This First...

50

PTC, ITC, or Cash Grant? Measuring the Value of Stimulus to Wind...  

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

PTC, ITC, or Cash Grant? Measuring the Value of Stimulus to Wind Power Projects in the United States Speaker(s): Mark Bolinger Date: January 26, 2010 - 12:00pm Location: 90-3122...

51

Iowa farmer hopes corn cobs will bring in extra cash | Department of Energy  

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

farmer hopes corn cobs will bring in extra cash farmer hopes corn cobs will bring in extra cash Iowa farmer hopes corn cobs will bring in extra cash October 22, 2009 - 12:22pm Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy Todd Mathisen's family has been working the rich soil in Northwest Iowa for the last 130 years, ever since his great-great grandfather homesteaded the land in the 1870s. Todd has cultivated the fields himself for the last three decades. His family's roots here go so deep they'd be pretty hard to pull up now, and he doesn't plan on leaving anytime soon. But that doesn't mean Todd is stuck in his ways. In fact, he's at the forefront of American farmers helping to supply the United States with a biofuel that may have a promising future: cellulosic ethanol.

52

How Miami, Florida is Turning Waste Into Cash | Department of Energy  

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

How Miami, Florida is Turning Waste Into Cash How Miami, Florida is Turning Waste Into Cash How Miami, Florida is Turning Waste Into Cash April 7, 2011 - 3:43pm Addthis Miami-Dade officials talk about using EECBG grant funds for their Methane Sequestration Project. April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs What does this project do? Methane gas captured from a landfill will provide 30 percent of the electricity used at an adjacent wastewater plant. The project will upgrade and expand the existing power generation system at the water plant. The county will increase the amount of self-generated electricity, and reduce the county's consumption of electricity generated from fossil fuels. In Miami, Florida, methane gas captured from a regional landfill will be used to provide 30 percent of the electricity used at an adjacent regional

53

Multiple capillary biochemical analyzer  

DOE Patents (OSTI)

A multiple capillary analyzer allows detection of light from multiple capillaries with a reduced number of interfaces through which light must pass in detecting light emitted from a sample being analyzed, using a modified sheath flow cuvette. A linear or rectangular array of capillaries is introduced into a rectangular flow chamber. Sheath fluid draws individual sample streams through the cuvette. The capillaries are closely and evenly spaced and held by a transparent retainer in a fixed position in relation to an optical detection system. Collimated sample excitation radiation is applied simultaneously across the ends of the capillaries in the retainer. Light emitted from the excited sample is detected by the optical detection system. The retainer is provided by a transparent chamber having inward slanting end walls. The capillaries are wedged into the chamber. One sideways dimension of the chamber is equal to the diameter of the capillaries and one end to end dimension varies from, at the top of the chamber, slightly greater than the sum of the diameters of the capillaries to, at the bottom of the chamber, slightly smaller than the sum of the diameters of the capillaries. The optical system utilizes optic fibers to deliver light to individual photodetectors, one for each capillary tube. A filter or wavelength division demultiplexer may be used for isolating fluorescence at particular bands. 21 figs.

Dovichi, N.J.; Zhang, J.Z.

1995-08-08T23:59:59.000Z

54

Cash Flow Forecasting Model for General Contractors Using Moving Weights of Cost Categories  

E-Print Network (OSTI)

. Navon's model 1995, 1997 automatically in- tegrates the bill of quantity BOQ , cost estimate. Moreover, the main obstacle to automating the integration process is compatibility between cost items, and equipment which are specified as percentages of total cost. This approach is very realistic because

Sheridan, Jennifer

55

ESPC Overview: Cash Flows, Scenarios, and Associated Diagrams for Energy Savings Performance Contracts  

Science Conference Proceedings (OSTI)

This document is meant to inform state and local decision makers about the process of energy savings performance contracts, and how projected savings and allocated energy-related budgets can be impacted by changes in utility prices.

Tetreault, T.; Regenthal, S.

2011-05-01T23:59:59.000Z

56

Modelling Information Flows in Financial Markets  

E-Print Network (OSTI)

This paper presents an overview of information-based asset pricing. In this approach, an asset is defined by its cash-flow structure. The market is assumed to have access to "partial" information about future cash flows. Each cash flow is determined by a collection of independent market factors called X-factors. The market filtration is generated by a set of information processes, each of which carries information about one of the X-factors, and eventually reveals the X-factor. Each information process has two terms, one of which contains a "signal" about the associated X-factor, and the other of which represents "market noise". The price of an asset is given by the expectation of the discounted cash flows in the risk-neutral measure, conditional on the information provided by the market. When the market noise is modelled by a Brownian bridge one is able to construct explicit formulae for asset prices, as well as semi-analytic expressions for the prices and greeks of options and derivatives. In particular, op...

Brody, Dorje C; Macrina, Andrea

2010-01-01T23:59:59.000Z

57

PTC, ITC, or Cash Grant? An Analysis of the Choice Facing Renewable Power Projects in the United States  

SciTech Connect

Renewable power technologies are inherently capital-intensive, often (but not always) with relatively high construction costs and low operating costs. For this reason, renewable power technologies are typically more sensitive to the availability and cost of financing than are natural gas power plants, for example. In the United States, the bulk of renewable project finance in recent years has been provided by 'tax equity investors' (typically large investment banks and insurance companies) who partner with project developers through highly specialized financing structures (Bolinger, 2009; Cory et al., 2008; Harper et al., 2007). These structures have been designed primarily to capitalize on federal support for renewable power technologies, which has historically come in the form of tax credits and accelerated depreciation deductions. The number of tax equity investors active in the renewable power market has declined precipitously, however, as a result of the financial crisis that began unfolding across the globe in the summer of 2008. The resulting shortage and increased cost of project financing has, in turn, slowed the development of new renewable power projects, leading to layoffs throughout the entire industry supply chain. In recognition of the fact that tax-based policy incentives are not particularly effective when tax burdens are shrinking or non-existent, Congress included several provisions in 'The American Recovery and Reinvestment Act of 2009' (ARRA 2009) designed to make federal incentives for renewable power technologies more useful. Among these provisions is one that allows projects eligible to receive the production tax credit ('the PTC', see Text Box 1) to instead elect the investment tax credit ('the ITC', see Text Box 2). Another provision enables ITC-eligible projects (which now include most PTC-eligible renewable power projects) to instead receive--for a limited time only--a cash grant of equivalent value. These two provisions (among others) could have a significant impact on how renewable power projects are financed over the next few years. The purpose of this report is to both quantitatively and qualitatively analyze, from the project developer/owner perspective, the choice between the PTC and the ITC (or equivalent cash grant) for a number of different renewable power technologies.1 Because the two credits are structured differently, and apply in different ways to different technologies, the choice between the two lends itself to quantitative financial analysis of the conditions under which either the PTC or the ITC would, at least in theory, provide greater financial value. Qualitative considerations may be equally important, however, particularly in instances where quantitative differences are modest. This report proceeds as follows. Section 2 provides a brief summary of ARRA 2009, with some emphasis on those provisions designed to ease the liquidity crisis facing the renewable power sector. Section 3 describes the quantitative analysis methodology, as well as modeling results for wind, open-loop biomass, closed-loop biomass, geothermal, and landfill gas projects. Section 4 discusses a number of qualitative considerations that may play as important of a role as quantitative results in deciding between the PTC and the ITC (or equivalent cash grant). Section 5 concludes, and an Appendix provides supplemental tables that present quantitative analysis results conducted at different discount rates.

Bolinger, Mark; Wiser, Ryan; Cory, Karlynn; James, Ted

2009-03-11T23:59:59.000Z

58

Accelerator beam profile analyzer  

DOE Patents (OSTI)

A beam profile analyzer employing sector or quadrant plates each servo controlled to outline the edge of a beam.

Godel, Julius B. (Bayport, NY); Guillaume, Marcel (Grivegnee, BE); Lambrecht, Richard M. (East Quogue, NY); Withnell, Ronald (East Setauket, NY)

1976-01-01T23:59:59.000Z

59

IFC File Analyzer  

Science Conference Proceedings (OSTI)

... The IFC File Analyzer generates a spreadsheet from an IFC file. ... In the spreadsheet, a worksheet is created for each type of IFC entity in the file. ...

2013-08-12T23:59:59.000Z

60

STEP File Analyzer  

Science Conference Proceedings (OSTI)

... The STEP File Analyzer is a software tool that generates a spreadsheet from a STEP (ISO 10303 –STandard for Exchange of Product model data ...

2013-08-06T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

System for analyzing coal liquefaction products  

SciTech Connect

A system for analyzing constituents of coal-derived materials comprises three adsorption columns and a flow-control arrangement which permits separation of both aromatic and polar hydrocarbons by use of two eluent streams.

Dinsmore, Stanley R. (Norris, TN); Mrochek, John E. (Oak Ridge, TN)

1984-01-01T23:59:59.000Z

62

System for analyzing coal-liquefaction products  

DOE Patents (OSTI)

A system for analyzing constituents of coal-derived materials comprises three adsorption columns and a flow-control arrangement which permits separation of both aromatic and polar hydrocarbons by use of two eluent streams. 4 figures.

Dinsmore, S.R.; Mrochek, J.E.

1982-10-29T23:59:59.000Z

63

CONTINUOUS GAS ANALYZER  

DOE Patents (OSTI)

A reagent gas and a sample gas are chemically combined on a continuous basis in a reaction zone maintained at a selected temperature. The reagent gas and the sample gas are introduced to the reaction zone at preselected. constant molar rates of flow. The reagent gas and the selected gas in the sample mixture combine in the reaction zone to form a product gas having a different number of moles from the sum of the moles of the reactants. The difference in the total molar rates of flow into and out of the reaction zone is measured and indicated to determine the concentration of the selected gas.

Katz, S.; Weber, C.W.

1960-02-16T23:59:59.000Z

64

Analyzing interacting BPEL processes  

Science Conference Proceedings (OSTI)

This paper addresses the problem of analyzing the interaction between BPEL processes. We present a technology chain that starts out with a BPEL process and transforms it into a Petri net model. On the model we decide controllability of the process ... Keywords: business process modeling and analysis, formal models in business process management, petri nets, process verification and validation

Niels Lohmann; Peter Massuthe; Christian Stahl; Daniela Weinberg

2006-09-01T23:59:59.000Z

65

PULSE AMPLITUDE ANALYZER  

DOE Patents (OSTI)

This patent pertains to pulse amplitude analyzers for sorting and counting a serles of pulses, and specifically discloses an analyzer which ls simple in construction and presents the puise height distribution visually on an oscilloscope screen. According to the invention, the pulses are applied to the vertical deflection plates of an oscilloscope and trigger the horizontal sweep. Each pulse starts at the same point on the screen and has a maximum amplitude substantially along the same vertical line. A mask is placed over the screen except for a slot running along the line where the maximum amplitudes of the pulses appear. After the slot has been scanned by a photocell in combination with a slotted rotating disk, the photocell signal is displayed on an auxiliary oscilloscope as vertical deflection along a horizontal time base to portray the pulse amplitude distribution.

Greenblatt, M.H.

1958-03-25T23:59:59.000Z

66

PULSE AMPLITUDE ANALYZER  

DOE Patents (OSTI)

A pulse-height analyzer system of improved design for sorting and counting a series of pulses, such as provided by a scintillation detector in nuclear radiation measurements, is described. The analyzer comprises a main transmission line, a cathode-ray tube for each section of the line with its deflection plates acting as the line capacitance; means to bias the respective cathode ray tubes so that the beam strikes a target only when a prearranged pulse amplitude is applied, with each tube progressively biased to respond to smaller amplitudes; pulse generating and counting means associated with each tube to respond when the beam is deflected; a control transmission line having the same time constant as the first line per section with pulse generating means for each tube for initiating a pulse on the second transmission line when a pulse triggers the tube of corresponding amplitude response, the former pulse acting to prevent successive tubes from responding to the pulse under test. This arrangement permits greater deflection sensitivity in the cathode ray tube and overcomes many of the disadvantages of prior art pulse-height analyzer circuits.

Gray, G.W.; Jensen, A.S.

1957-10-22T23:59:59.000Z

67

Fluorescence analyzer for lignin  

SciTech Connect

A method and apparatus for measuring lignin concentration in a sample of wood pulp or black liquor comprises a light emitting arrangement for emitting an excitation light through optical fiber bundles into a probe which has an undiluted sensing end facing the sample. The excitation light causes the lignin concentration to produce fluorescent emission light which is then conveyed through the probe to analyzing equipment which measures the intensity of the emission light. Measures a This invention was made with Government support under Contract Number DOE: DE-FC05-90CE40905 awarded by the Department of Energy (DOE). The Government has certain rights in this invention.

Berthold, John W. (Salem, OH); Malito, Michael L. (Hubbard, OH); Jeffers, Larry (Alliance, OH)

1993-01-01T23:59:59.000Z

68

Fractional channel multichannel analyzer  

DOE Patents (OSTI)

A multichannel analyzer incorporating the features of the present invention obtains the effect of fractional channels thus greatly reducing the number of actual channels necessary to record complex line spectra. This is accomplished by using an analog-to-digital converter in the asynchronous mode, i.e., the gate pulse from the pulse height-to-pulse width converter is not synchronized with the signal from a clock oscillator. This saves power and reduces the number of components required on the board to achieve the effect of radically expanding the number of channels without changing the circuit board. 9 figs.

Brackenbush, L.W.; Anderson, G.A.

1994-08-23T23:59:59.000Z

69

Downhole Fluid Analyzer Development  

SciTech Connect

A novel fiber optic downhole fluid analyzer has been developed for operation in production wells. This device will allow real-time determination of the oil, gas and water fractions of fluids from different zones in a multizone or multilateral completion environment. The device uses near infrared spectroscopy and induced fluorescence measurement to unambiguously determine the oil, water and gas concentrations at all but the highest water cuts. The only downhole components of the system are the fiber optic cable and windows. All of the active components--light sources, sensors, detection electronics and software--will be located at the surface, and will be able to operate multiple downhole probes. Laboratory testing has demonstrated that the sensor can accurately determine oil, water and gas fractions with a less than 5 percent standard error. Once installed in an intelligent completion, this sensor will give the operating company timely information about the fluids arising from various zones or multilaterals in a complex completion pattern, allowing informed decisions to be made on controlling production. The research and development tasks are discussed along with a market analysis.

Bill Turner

2006-11-28T23:59:59.000Z

70

PULSE HEIGHT ANALYZER  

DOE Patents (OSTI)

An anticoincidence device is described for a pair of adjacent channels of a multi-channel pulse height analyzer for preventing the lower channel from generating a count pulse in response to an input pulse when the input pulse has sufficient magnitude to reach the upper level channel. The anticoincidence circuit comprises a window amplifier, upper and lower level discriminators, and a biased-off amplifier. The output of the window amplifier is coupled to the inputs of the discriminators, the output of the upper level discriminator is connected to the resistance end of a series R-C network, the output of the lower level discriminator is coupled to the capacitance end of the R-C network, and the grid of the biased-off amplifier is coupled to the junction of the R-C network. In operation each discriminator produces a negative pulse output when the input pulse traverses its voltage setting. As a result of the connections to the R-C network, a trigger pulse will be sent to the biased-off amplifier when the incoming pulse level is sufficient to trigger only the lower level discriminator.

Johnstone, C.W.

1958-01-21T23:59:59.000Z

71

THE CHEMICAL ABUNDANCES OF STARS IN THE HALO (CASH) PROJECT. II. A SAMPLE OF 14 EXTREMELY METAL-POOR STARS ,  

Science Conference Proceedings (OSTI)

We present a comprehensive abundance analysis of 20 elements for 16 new low-metallicity stars from the Chemical Abundances of Stars in the Halo (CASH) project. The abundances have been derived from both Hobby-Eberly Telescope High Resolution Spectrograph snapshot spectra (R {approx}15, 000) and corresponding high-resolution (R {approx}35, 000) Magellan Inamori Kyocera Echelle spectra. The stars span a metallicity range from [Fe/H] from -2.9 to -3.9, including four new stars with [Fe/H] pipeline. This code will be used for the entire {approx}500 star CASH snapshot sample. We find that the pipeline results are statistically identical for snapshot spectra when compared to a traditional, manual analysis from a high-resolution spectrum.

Hollek, Julie K.; Sneden, Christopher; Shetrone, Matthew [Department of Astronomy, University of Texas at Austin, Austin, TX 78712 (United States); Frebel, Anna [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Roederer, Ian U. [Carnegie Observatories, Pasadena, CA 91101 (United States); Beers, Timothy C. [Department of Physics and Astronomy, and JINA: Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824 (United States); Kang, Sung-ju [Department of Physics and Astronomy, Iowa State University, Ames, IA 50011 (United States); Thom, Christopher, E-mail: julie@astro.as.utexas.edu, E-mail: chris@astro.as.utexas.edu, E-mail: shetrone@astro.as.utexas.edu, E-mail: afrebel@cfa.harvard.edu, E-mail: iur@obs.carnegiescience.edu, E-mail: beers@pa.msu.edu, E-mail: sjkang@iastate.edu, E-mail: cthom@stsci.edu [Space Telescope Science Institute, Baltimore, MD 21218 (United States)

2011-11-20T23:59:59.000Z

72

Program on Technology Innovation: A Conceptual Framework for Modeling the Impact of CO2 Policy on Generator Cash Flows  

Science Conference Proceedings (OSTI)

Climate policy represents a fundamental uncertainty for electricity generating companies. Although many analyses are available, the timing and stringency of domestic climate policies are unknown and will likely be dependent upon the actions of other countries. The outcomes of these deliberations can dramatically change the return on generation investments. Today, many electric companies are actively considering substantial investments in new capacity. The technology choices these companies make and the f...

2006-12-20T23:59:59.000Z

73

Analyzing  

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

the the Effect of Different Programming Models Upon Performance and Memory Usage on Cray XT5 Platforms Hongzhang Shan Future Technology Group, Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 Haoqiang Jin NAS Division, NASA Arms Research Center, Moffett Field, CA 94035-1000 Karl Fuerlinger University of California at Berkeley, EECS Department, Computer Science Division Berkeley, CA 94720 Alice Koniges, Nicholas J. Wright NERSC, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 Abstract-Harnessing the power of multicore platforms is chal- lenging due to the additional levels of parallelism present. In this paper, we examine the effect of the choice of programming model upon performance and overall memory usage on the Cray XT5. We use detailed time breakdowns to measure the contributions to the total runtime from computation,

74

WORKING PAPER SERIESFEDERAL RESERVE BANK of ATLANTA WORKING PAPER SERIES Trading Institutions and Price Discovery: The Cash and Futures Markets for Crude Oil  

E-Print Network (OSTI)

Abstract: We provide substantial evidence that the futures market for West Texas Intermediate crude oil increased the short-term volatility of the cash price of crude oil. We show that the variability of prices increased using both published posted prices and transaction prices for producers. This increased volatility in the price of crude oil may reflect information aggregated into the price, an increase the variance of shocks to the price of crude oil, or noise in the futures price that affects the cash price. We present evidence from experiments consistent with the interpretation that information aggregation not feasible in a posted-price market can explain at least part of the increase in variance. This evidence supports the proposition that information not previously aggregated into the cash price for crude oil is at least part of the reason for the greater variability of the cash price after the opening of the futures market and provides at least one example in which a futures market increased the volatility of the cash market, and prices became more efficient. JEL classification: G130, G140 Key words: crude oil, futures, posted price, experiments, experimental finance, price discovery, information aggregation

Albert Ballinger; Gerald P. Dwyer; Ann B. Gillette; Albert Ballinger; Gerald P. Dwyer; Ann B. Gillette

2004-01-01T23:59:59.000Z

75

Analyzing r'/r. - CECM  

E-Print Network (OSTI)

Analyzing r'/r. [Annotate] · [Shownotes]. There is still the question of the amplitude of . With the values of a, b, c and d from equation (11) inserted into equation (7) ...

76

Capital flows to Latin American countries: effects of foreign direct investment and remittances on growth and development  

E-Print Network (OSTI)

The significant restructuring of international capital flows to developing countries – in particular to Latin American countries – observed in the last quarter century has generated significant research in the area to examine its potential impact on development efforts. The resurgence of foreign direct investment (FDI) and the increasing significance of remittances, both as shares of gross domestic product (GDP), have made these types of capital flows the most analyzed. Despite the large fraction of empirical studies that find a positive and significant relationship between FDI and economic growth, an important fact that has been so far overlooked in the literature is its impact on standards of living in host countries. This dissertation first establishes the strong complementary connection between FDI and economic growth in Latin America, measured by increases in GDP per capita growth rates, to then examine additional channels through which it could affect the welfare of the region. I first show that FDI has a positive effect on central government tax revenues, which is mainly channeled through its effect on taxes on goods and services. I then show that FDI has a positive and significant effect on the employment rates in these host countries, with female employment rate getting the largest impact – relative to males. Remittances are another capital flow that plays a large and important role in certain economies, exceeding 10% of GDP in some countries. The impact of remittances on the main macroeconomic measures of a small open economy is analyzed in the last section using a stochastic limited participation model with cash in advance constraints and costly adjustment of cash holdings. After verifying that the model responds adequately to standard shocks, a remittances shock is introduced to examine the dynamic response of the representative economy. The results show that a positive remittances shock forces the exchange rate to depreciate and lowers both output and consumption in the period of the shock. The positive shock lowers utility during the shock but raises it from the following period onwards, improving discounted utility after 10 years when remittances are 10% of GDP and there are no adjustment costs.

Vacaflores Rivero, Diego Eduardo

2007-08-01T23:59:59.000Z

77

Rotor for centrifugal fast analyzers  

DOE Patents (OSTI)

The invention is an improved photometric analyzer of the rotary cuvette type, the analyzer incorporating a multicuvette rotor of novel design. The rotor (a) is leaktight, (b) permits operation in the 90/sup 0/ and 180/sup 0/ excitation modes, (c) is compatible with extensively used Centrifugal Fast Analyzers, and (d) can be used thousands of times. The rotor includes an assembly comprising a top plate, a bottom plate, and a central plate, the rim of the central plate being formed with circumferentially spaced indentations. A uv-transmitting ring is sealably affixed to the indented rim to define with the indentations an array of cuvettes. The ring serves both as a sealing means and an end window for the cuvettes.

Lee, N.E.

1984-01-01T23:59:59.000Z

78

Rotor for centrifugal fast analyzers  

DOE Patents (OSTI)

The invention is an improved photometric analyzer of the rotary cuvette type, the analyzer incorporating a multicuvette rotor of novel design. The rotor (a) is leaktight, (b) permits operation in the 90.degree. and 180.degree. excitation modes, (c) is compatible with extensively used Centrifugal Fast Analyzers, and (d) can be used thousands of times. The rotor includes an assembly comprising a top plate, a bottom plate, and a central plate, the rim of the central plate being formed with circumferentially spaced indentations. A UV-transmitting ring is sealably affixed to the indented rim to define with the indentations an array of cuvettes. The ring serves both as a sealing means and an end window for the cuvettes.

Lee, Norman E. (Knoxville, TN)

1985-01-01T23:59:59.000Z

79

Real time infrared aerosol analyzer  

DOE Patents (OSTI)

Apparatus for analyzing aerosols in essentially real time includes a virtual impactor which separates coarse particles from fine and ultrafine particles in an aerosol sample. The coarse and ultrafine particles are captured in PTFE filters, and the fine particles impact onto an internal light reflection element. The composition and quantity of the particles on the PTFE filter and on the internal reflection element are measured by alternately passing infrared light through the filter and the internal light reflection element, and analyzing the light through infrared spectrophotometry to identify the particles in the sample.

Johnson, Stanley A. (Countryside, IL); Reedy, Gerald T. (Bourbonnais, IL); Kumar, Romesh (Naperville, IL)

1990-01-01T23:59:59.000Z

80

Multiple-tracer gas analyzer  

SciTech Connect

A multi-gas tracer system has been designed, built, and used on an explosively fractured oil shale rubble bed. This paper deals exclusively with the hardware, software, and overall operation of the tracer system. This system is a field portable, self-contained unit, which utilizes a mass spectrometer for gas analysis. The unit has a 20 channel sample port capability and is controlled by a desk top computer. The system is configured to provide a dynamic sensitivity range of up to six orders of magnitude. A roots blower is manifolded to the unit to provide continuous flow in all sample lines. The continuous flow process allows representative samples as well as decreasing the time between each measurement. Typical multiplex cycle time to evaluate four unique gases is approximately 12 seconds.

Uhl, J.E.

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

DEEP WATER ISOTOPIC CURRENT ANALYZER  

DOE Patents (OSTI)

A deepwater isotopic current analyzer, which employs radioactive isotopes for measurement of ocean currents at various levels beneath the sea, is described. The apparatus, which can determine the direction and velocity of liquid currents, comprises a shaft having a plurality of radiation detectors extending equidistant radially therefrom, means for releasing radioactive isotopes from the shaft, and means for determining the time required for the isotope to reach a particular detector. (AEC)

Johnston, W.H.

1964-04-21T23:59:59.000Z

82

Workshop For Analyzing SANS Data  

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

HFIR Center for Neutron Scattering HFIR Center for Neutron Scattering Workshop for Analyzing SANS Data April 18 - 20, 2011 SNS Logo Spallation Neutron Source * Oak Ridge National Laboratory * Oak Ridge TN, USA Workshop Home Workshop Agenda Information Contacts Pre-Workshop Installation & Reading filler Workshop summary and purpose Since its inception the BIO-SANS and GP-SANS instruments have supported over 440 unique users and thus a need arose to supply users with additional support via data analysis and reduction to expedite the publication of new science. A continuation of this kind of user support is being done by our upcoming workshop to help past users reduce and analyze data from our SANS instruments using the established data acquisition software. We will be using Igor Pro and our in house routines to do the data reduction and fitting. The goal is that everyone who attends will leave the workshop with completely analyzed data and meaningful results. To accomplish this feat, we will focus the first day on data reduction and the following two days on analysis. We will go over in detail all the different fitting functions that are currently supported in Igor and set-aside time to discuss what other functions need to be inputted into Igor. Finally, there will be a demonstration of the new NSSD data reduction/analysis software, MANTID, that will be implemented in the near future across the SANS beam lines.

83

Charged particle mobility refrigerant analyzer  

DOE Patents (OSTI)

A method for analyzing a gaseous electronegative species comprises the steps of providing an analysis chamber; providing an electric field of known potential within the analysis chamber; admitting into the analysis chamber a gaseous sample containing the gaseous electronegative species; providing a pulse of free electrons within the electric field so that the pulse of free electrons interacts with the gaseous electronegative species so that a swarm of electrically charged particles is produced within the electric field; and, measuring the mobility of the electrically charged particles within the electric field.

Allman, Steve L. (Knoxville, TN); Chen, Chung-Hsuan (Knoxville, TN); Chen, Fang C. (Knoxville, TN)

1993-01-01T23:59:59.000Z

84

MULTICHANNEL PULSE-HEIGHT ANALYZER  

DOE Patents (OSTI)

This patent deals with electronic computing circuits and more particularly to pulse-height analyzers used for classifying variable amplitude pulses into groups of different amplitudes. The device accomplishes this pulse allocation by by converting the pulses into frequencies corresponding to the amplitudes of the pulses, which frequencies are filtered in channels individually pretuned to a particular frequency and then detected and recorded in the responsive channel. This circuit substantially overcomes the disadvantages of prior annlyzers incorporating discriminators pre-set to respond to certain voltage levels, since small variation in component values is not as critical to satisfactory circuit operation.

Russell, J.T.; Lefevre, H.W.

1958-01-21T23:59:59.000Z

85

Potential Flow Calculations of Axisymmetric Ducted Wind Turbines  

E-Print Network (OSTI)

An incompressible potential-flow vortex method has been constructed to analyze the flow field of a ducted

Widnall, Sheila

2009-09-02T23:59:59.000Z

86

Multiple capillary biochemical analyzer with barrier member  

DOE Patents (OSTI)

A multiple capillary biochemical analyzer for sequencing DNA and performing other analyses, in which a set of capillaries extends from wells in a microtiter plate into a cuvette. In the cuvette the capillaries are held on fixed closely spaced centers by passing through a sandwich construction having a pair of metal shims which squeeze between them a rubber gasket, forming a leak proof seal for an interior chamber in which the capillary ends are positioned. Sheath fluid enters the chamber and entrains filament sample streams from the capillaries. The filament sample streams, and sheath fluid, flow through aligned holes in a barrier member spaced close to the capillary ends, into a collection chamber having a lower glass window. The filament streams are illuminated above the barrier member by a laser, causing them to fluoresce. The fluorescence is viewed end-on by a CCD camera chip located below the glass window. The arrangement ensures an equal optical path length from all fluorescing spots to the CCD chip and also blocks scattered fluorescence illumination, providing more uniform results and an improved signal to noise ratio.

Dovichi, Norman J. (Edmonton, CA); Zhang, Jian Z. (Edmonton, CA)

1996-01-01T23:59:59.000Z

87

Multiple capillary biochemical analyzer with barrier member  

DOE Patents (OSTI)

A multiple capillary biochemical analyzer is disclosed for sequencing DNA and performing other analyses, in which a set of capillaries extends from wells in a microtiter plate into a cuvette. In the cuvette the capillaries are held on fixed closely spaced centers by passing through a sandwich construction having a pair of metal shims which squeeze between them a rubber gasket, forming a leak proof seal for an interior chamber in which the capillary ends are positioned. Sheath fluid enters the chamber and entrains filament sample streams from the capillaries. The filament sample streams, and sheath fluid, flow through aligned holes in a barrier member spaced close to the capillary ends, into a collection chamber having a lower glass window. The filament streams are illuminated above the barrier member by a laser, causing them to fluoresce. The fluorescence is viewed end-on by a CCD camera chip located below the glass window. The arrangement ensures an equal optical path length from all fluorescing spots to the CCD chip and also blocks scattered fluorescence illumination, providing more uniform results and an improved signal-to-noise ratio. 12 figs.

Dovichi, N.J.; Zhang, J.Z.

1996-10-22T23:59:59.000Z

88

Cash for Coolers  

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

appliance replacement program in Mexico that since 2009 has helped 1.5 million households replace their old refrigerators and air-conditioners with energy-efficient models....

89

Cash for Coolers  

E-Print Network (OSTI)

electricity consumption is calculated over the previous year.electricity consumption by 79 kilowatt hours per year. Atelectricity consumption is 1,836 kilowatt hour per year and

Davis, Lucas W.; Fuchs, Alan; Gertler, Paul J.

2012-01-01T23:59:59.000Z

90

Cash for Coolers  

E-Print Network (OSTI)

Domestic Refrigerators in Mexico” Energy Policy, 37, 4737-oversees the broader energy sector in Mexico and carries outin 2014 (76 FR 179). Mexico’s energy-efficiency standards

Davis, Lucas W.; Fuchs, Alan; Gertler, Paul J.

2012-01-01T23:59:59.000Z

91

Apparatus for measuring resistance change only in a cell analyzer and method for calibrating it  

SciTech Connect

The disclosure relates to resistance only monitoring and calibration in an electrical cell analyzer. Sample and sheath fluid flows of different salinities are utilized, the sample flow being diameter modulated to produce a selected pattern which is compared to the resistance measured across the flows.

Hoffman, Robert A. (Los Alamos, NM)

1980-01-01T23:59:59.000Z

92

Lighting Research Group: Facilities: Power Analyzer  

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

Power Analyzer Power Analyzer Power Analyzer power analyzer Gonio-photometer | Integrating sphere | Power analyzer | Spectro-radiometer A power analyzer is a very necessary tool for lighting research. With the power analyzer we are able to monitor the input voltage to the lamp as well as the input power and current. The amount of power a lamp or a lamp-ballast combination uses is very important when determining its efficiency. It is also important to monitor the input voltage to make sure it doesn't vary. This can affect the light output of a lamp greatly. With the power analyzer we can also measure things like the power factor, harmonic distortion, and current crest factor of some lamps. These measurements tell us how well a lamp is working. For example, a high power

93

Pulsed Neurton Elemental On-Line Material Analyzer  

DOE Patents (OSTI)

An on-line material analyzer which utilizes pulsed neutron generation in order to determine the composition of material flowing through the apparatus. The on-line elemental material analyzer is based on a pulsed neutron generator. The elements in the material interact with the fast and thermal neutrons produced from the pulsed generator. Spectra of gamma-rays produced from fast neutrons interacting with elements of the material are analyzed and stored separately from spectra produced from thermal neutron reactions. Measurements of neutron activation takes place separately from the above reactions and at a distance from the neutron generator. A primary passageway allows the material to flow through at a constant rate of speed and operators to provide data corresponding to fast and thermal neutron reactions. A secondary passageway meters the material to allow for neutron activation analysis. The apparatus also has the capability to determine the density of the flowed material. Finally, the apparatus continually utilizes a neutron detector in order to normalize the yield of the gamma ray detectors and thereby automatically calibrates and adjusts the spectra data for fluctuations in neutron generation.

Vourvopoulos, George (Bowling Green, KY)

2002-08-20T23:59:59.000Z

94

Application of a Differential Fuel-Cell Analyzer for Measuring Atmospheric Oxygen Variations  

Science Conference Proceedings (OSTI)

A commercially available differential fuel-cell analyzer has been adapted to make field-based ppm-level measurements of atmospheric O2 variations. With the implementation of rapid calibrations and active pressure and flow control, the analysis ...

Britton B. Stephens; Peter S. Bakwin; Pieter P. Tans; Ron M. Teclaw; Daniel D. Baumann

2007-01-01T23:59:59.000Z

95

Analysis of a turbine trip test with a plant analyzer  

SciTech Connect

To improve nuclear power plant safety, the Taiwan Power Company is using a plant analyzer developed by Brookhaven National Laboratory (BNL). The BNL boiling water reactor (BWR) plant analyzer program was converted and modified for the Chinshan power station using the ADSIM simulation language. The plant analyzer uses a special-purpose peripheral processor, the AD-100 from the Applied Dynamic International Company, and detailed mathematical models. With the fast-computing features of the AD-100, the plant analyzer can carry out accurate and fast simulations of nuclear power plant transients. To qualify this program, simulation results were benchmarked against power test data. During a power test a Chinshan unit 1, a 1175-MW(thermal) boiling water reactor (BWR), a turbine trip test was performed from a steady-state condition of 83% of rated core power and 80% of rated core flow. It was initiated by a manual trip of the turbine. The purpose of this work is to simulate the turbine trip transient with the plant analyzer and compare the results with plant test data.

Wang, Shih-Jen; Chien, C.S.; Jang, J.Y.

1990-01-01T23:59:59.000Z

96

Multi-channel neutral analyzer-system  

DOE Green Energy (OSTI)

Design and calibration of a 15 channel multi-channel analyzer for analysis of energetic neutral particles escaping a hot plasma are discussed. Features of the analyzer include a frequency response from DC to 50 kHz, spatial resolution, mass resolution, and data acquisition and processing for 15 points on the energy distribution that are simultaneously recorded. Another feature of the system is the ability to radially scan the plasma. An rf ion source is used to provide ions and neutrals used for calibration of a reference single channel analyzer. This analyzer is, in turn, used to calibrate the multi-channel analyzer over the energy range 500 eV to 40 keV. A brief description of the data processing system is included. (RME)

Nexsen, Jr., W. E.; Turner, W. C.; Cummins, W. F.

1977-09-14T23:59:59.000Z

97

May 2011 Summary Analysis California State Controller John Chiang / Statement of General Fund Cash Receipts and Disbursements 6  

E-Print Network (OSTI)

, Wongtarua P. (2009). Strategies and options for integrating biofuel and rural renewable energy production for Integrating Biofuel and Rural Renewable Energy Production in Agriculture for Poverty Reduction in the Greater the production and use of ethanol and biodiesel. This paper analyzes the effects of these policies, along

Lin, C.-Y. Cynthia

98

Building Energy Software Tools Directory: System Analyzer  

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

System Analyzer System Analyzer System Analyzer logo. Software package for load calculation and energy and economic comparative analysis. System Analyzer permits a quick evaluation of virtually any building, system, and equipment combination. Thus, it can be used either as a scoping tool to decide what systems may be appropriate for an initial design, or to get a general feeling of how one system/equipment combination may perform over another. If a certain combination seems especially promising, further analysis can be done by exporting inputs into TRACE 600. The possibilities are endless. And since the program is Windows-based, virtually anyone with minimal HVAC training and experience can use it. Keywords Energy analyses, load calculation, comparison of system and equipment

99

NREL: Wind Research - Analyzing Economic Development Through...  

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

Analyzing Economic Development Through Wind Power July 22, 2013 Audio with Audio with Eric Lantz, NREL Senior Research analyst (MP3 3.0 MB). Download Windows Media Player. Time:...

100

Beam specie analyzer for intense neutral beams  

DOE Green Energy (OSTI)

A three-channel neutral particle energy analyzer has been fabricated and calibrated for H/sup 0/ particles. H/sup 0/ with energies 3.5-55 keV was passed through a N/sub 2/ gas cell maintained at charge equilibrium pressures. H/sup +/ ions formed by stripping collisions were energy analyzed by a 45/sup 0/, parabolic, electrostatic analyzer and detected by three Faraday cups spaced to intercept the full-, half-, and third-energy beam components. The conversion efficiency of the analyzer system increased from 0.11 at 3.5 keV to 0.54 at 55 keV with an accuracy of +- 3%.

Barnett, C.F.; Ray, J.A.

1981-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

Increased Power Flow Guidebook  

Science Conference Proceedings (OSTI)

The Increased Power Flow (IPF) Guidebook is a state-of-the-art and best practices guidebook on increasing power flow capacities of existing overhead transmission lines, underground cables, power transformers, and substation equipment without compromising safety and reliability. The Guidebook discusses power system concerns and limiting conditions to increasing capacity, reviews available technology options and methods, illustrates alternatives with case studies, and analyzes costs and benefits of differe...

2005-11-16T23:59:59.000Z

102

Using simulation to analyze supply chains  

Science Conference Proceedings (OSTI)

Supply Chain management, the management of the flow of goods or services from materials stage to the end user, is a complex process because of the level of uncertainty at each stage of the supply chain. Computer simulation, because it can be applied ...

Daniel Schunk; Beth Plott

2000-12-01T23:59:59.000Z

103

Real-TIme Raman Gas Composition Analyzer  

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

Analyzer Analyzer Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking collaborative research partners interested in implementing United States Provisional Patent Application entitled "Gas Sensing System Employing Raman Scattering". Disclosed in this application is a gas analyzing sensor that characterizes gaseous fuel, exhaust gases, or other process gas streams. The sensor reports concentrations of all majority gases at better than 0.3% accuracy in 1 second or less, and can be used for real-time gas analysis and system control. The sensor relies on novel techniques to enhance usually weak spontaneous Raman emissions from sample gases, enabling the application of Raman spectroscopy to rapid gas analysis. No commercially available sensor or sensing

104

PARALYZER FOR PULSE HEIGHT DISTRIBUTION ANALYZER  

DOE Patents (OSTI)

A paralyzer circuit is described for use with a pulseheight distribution analyzer to prevent the analyzer from counting overlapping pulses where they would serve to provide a false indication. The paralyzer circuit comprises a pair of cathode-coupled amplifiers for amplifying pulses of opposite polarity. Diodes are provided having their anodes coupled to the separate outputs of the amplifiers to produce only positive signals, and a trigger circuit is coupled to the diodes ior operation by input pulses of either polarity from the amplifiers. A delay network couples the output of the trigger circuit for delaying the pulses.

Fairstein, E.

1960-01-19T23:59:59.000Z

105

Analyzing & debugging ILP data mining query execution  

Science Conference Proceedings (OSTI)

We present a trace based approach for analyzing the runs of Inductive Logic Programming Data Mining systems, without needing to modify the actual implementation of the ILP mining algorithms. We discuss the use of traces as the basis for easy and fast, ... Keywords: debugging, inductive logic programming, monitoring, traces

Remko Tronçon; Gerda Janssens

2005-09-01T23:59:59.000Z

106

CONTINUOUS ANALYZER UTILIZING BOILING POINT DETERMINATION  

DOE Patents (OSTI)

A device is designed for continuously determining the boiling point of a mixture of liquids. The device comprises a distillation chamber for boiling a liquid; outlet conduit means for maintaining the liquid contents of said chamber at a constant level; a reflux condenser mounted above said distillation chamber; means for continuously introducing an incoming liquid sample into said reflux condenser and into intimate contact with vapors refluxing within said condenser; and means for measuring the temperature of the liquid flowing through said distillation chamber. (AEC)

Pappas, W.S.

1963-03-19T23:59:59.000Z

107

Real time speech formant analyzer and display  

DOE Patents (OSTI)

A speech analyzer for interpretation of sound includes a sound input which converts the sound into a signal representing the sound. The signal is passed through a plurality of frequency pass filters to derive a plurality of frequency formants. These formants are converted to voltage signals by frequency-to-voltage converters and then are prepared for visual display in continuous real time. Parameters from the inputted sound are also derived and displayed. The display may then be interpreted by the user. The preferred embodiment includes a microprocessor which is interfaced with a television set for displaying of the sound formants. The microprocessor software enables the sound analyzer to present a variety of display modes for interpretive and therapeutic used by the user. 19 figs.

Holland, G.E.; Struve, W.S.; Homer, J.F.

1987-02-03T23:59:59.000Z

108

Compact fast analyzer of rotary cuvette type  

DOE Patents (OSTI)

A compact fast analyzer of the rotary cuvette type is provided for simultaneously determining concentrations in a multiplicity of discrete samples using either absorbance or fluorescence measurement techniques. A rigid, generally rectangular frame defines optical passageways for the absorbance and fluorescence measurement systems. The frame also serves as a mounting structure for various optical components as well as for the cuvette rotor mount and drive system. A single light source and photodetector are used in making both absorbance and fluorescence measurements. Rotor removal and insertion are facilitated by a swing-out drive motor and rotor mount. BACKGROUND OF THE INVENTION The invention relates generally to concentration measuring instruments and more specifically to a compact fast analyzer of the rotary cuvette type which is suitable for making either absorbance or fluorescence measurements. It was made in the course of, or under, a contract with the U.S. Atomic Energy Commission.

Thacker, Louis H. (Knoxville, TN)

1976-01-01T23:59:59.000Z

109

Neutral Particle Analyzer Diagnostic on NSTX  

DOE Green Energy (OSTI)

The Neutral Particle Analyzer (NPA) diagnostic on the National Spherical Torus Experiment (NSTX) utilizes a PPPL-designed E||B spectrometer that measures the energy spectra of minority hydrogen and bulk deuterium species simultaneously with 39 energy channels per mass specie and a time resolution of 1 ms. The calibrated energy range is E = 0.5-150 keV and the energy resolution varies from AE/E = 3-7% over the surface of the microchannel plate detector.

S.S. Medley; A.L. Roquemore

2004-03-16T23:59:59.000Z

110

Analyzing Options for Airborne Emergency Wireless Communications  

SciTech Connect

In the event of large-scale natural or manmade catastrophic events, access to reliable and enduring commercial communication systems is critical. Hurricane Katrina provided a recent example of the need to ensure communications during a national emergency. To ensure that communication demands are met during these critical times, Idaho National Laboratory (INL) under the guidance of United States Strategic Command has studied infrastructure issues, concerns, and vulnerabilities associated with an airborne wireless communications capability. Such a capability could provide emergency wireless communications until public/commercial nodes can be systematically restored. This report focuses on the airborne cellular restoration concept; analyzing basic infrastructure requirements; identifying related infrastructure issues, concerns, and vulnerabilities and offers recommended solutions.

Michael Schmitt; Juan Deaton; Curt Papke; Shane Cherry

2008-03-01T23:59:59.000Z

111

Nuclear Plant Analyzer: Installation manual. Volume 1  

SciTech Connect

This report contains the installation instructions for the Nuclear Plant Analyzer (NPA) System. The NPA System consists of the Computer Visual System (CVS) program, the NPA libraries, the associated utility programs. The NPA was developed at the Idaho National Engineering Laboratory under the sponsorship of the US Nuclear Regulatory Commission to provide a highly flexible graphical user interface for displaying the results of these analysis codes. The NPA also provides the user with a convenient means of interactively controlling the host program through user-defined pop-up menus. The NPA was designed to serve primarily as an analysis tool. After a brief introduction to the Computer Visual System and the NPA, an analyst can quickly create a simple picture or set of pictures to aide in the study of a particular phenomenon. These pictures can range from simple collections of square boxes and straight lines to complex representations of emergency response information displays.

Snider, D.M.; Wagner, K.L.; Grush, W.H.; Jones, K.R. [Idaho National Engineering Lab., Idaho Falls, ID (United States)]|[Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)

1995-01-01T23:59:59.000Z

112

Message from Essential Cash Controls  

E-Print Network (OSTI)

Services #12;Internal Audit of Laboratory Safety by Audit Manager Noahn Montemayor, UC Riverside Audit & Advisory Services Responsibility for Campus Laboratory Safety Laboratory safety is the responsibility and roles in the laboratory. The role of Environmental Health & Safety (EH&S) is to advise the campus

Sanders, Seth

113

Analyzing flow patterns in unsaturated fractured rock of Yucca Mountain using an integrated modeling approach  

E-Print Network (OSTI)

zone site-scale model, Yucca Mountain Site Characterizationzone site- scale model, Yucca Mountain Project Milestonelateral diversion at Yucca Mountain, Nevada, Water Resources

Wu, Yu-Shu; Lu, Guoping; Zhang, Keni; Pan, Lehua; Bodvarsson, Gudmundur S.

2008-01-01T23:59:59.000Z

114

A flow injection trace gas analyzer for on-site determination of organoarsenicals  

DOE Patents (OSTI)

Lewisite was developed during World War I as a chemical warfare agent. Several countries produced large quantities of the agent before, during and after World War II. The Chemical Weapons Convention treaty, recently signed, requires the destruction of Lewisite. In implementing the Chemical Weapons Convention treaty, it will be necessary to monitor the facilities at which various chemical agents including Lewisite may be stored for compliance with the agreement. The inspection procedures must meet stringent standards for safety, quality assurance and accountability. In preparing for these inspections a technology gap has been identified in the ability to detect and monitor for the presence of Lewisite in ambient air, particularly in the facilities where chemical warfare agents are stored. A method and an apparatus for determining the concentration of Lewisite in the ambient atmosphere are described. The apparatus includes a mechanism for separating and collecting a Lewisite sample from the atmosphere, a mechanism for converting the collected Lewisite to an arsenite ion solution sample, and a mechanism for electrochemically detecting the converted arsenite ions in the sample, whereby the amount of arsenite ions detected is proportional to the concentration of Lewisite in the atmosphere.

Aldstadt, J.H. III

1995-12-31T23:59:59.000Z

115

A multi-parametric flow cytometric assay to analyze DNA–protein interactions  

E-Print Network (OSTI)

Interactions between DNA and transcription factors (TFs) guide cellular function and development, yet the complexities of gene regulation are still far from being understood. Such understanding is limited by a paucity of ...

Arbab, Mandana

116

Turbulence Length Scales in Stably Stratified Free Shear Flow Analyzed from Slant Aircraft Profiles  

Science Conference Proceedings (OSTI)

The vertical turbulence structure in the marine atmosphere close to a coastline is investigated using airborne measurements. The measurements are from a field experiment close to the coast in the southeast of Sweden, in the Baltic Sea. The Baltic ...

Michael Tjernström

1993-05-01T23:59:59.000Z

117

Analyzing flow patterns in unsaturated fractured rock of Yucca Mountain using an integrated modeling approach  

E-Print Network (OSTI)

Flint, E. L. , A. L. , Flint, and J. S. Selker, Influence ofWater Resources Research, 39, (4), 4- Flint, A. L. , J. A.Hevesi, and L. E. Flint, Conceptual and numerical model of

Wu, Yu-Shu; Lu, Guoping; Zhang, Keni; Pan, Lehua; Bodvarsson, Gudmundur S.

2008-01-01T23:59:59.000Z

118

DistFlow ODE: Modeling, analyzing and controlling long distribution feeder  

E-Print Network (OSTI)

We consider a linear feeder connecting multiple distributed loads and generators to the sub-station. Voltage is controlled directly at the sub-station, however, voltage down the line shifts up or down, in particular depending ...

Wang, Danhua

119

Geothermal investment and policy analysis with evaluation of California and Utah resource areas  

DOE Green Energy (OSTI)

A geothermal investment decision model was developed which, when coupled to a site-specific stochastic cash flow model, estimates the conditional probability of a positive decision to invest in the development of geothermal resource areas. The geothermal cash flow model, the investment decision model and their applications for assessing the likely development potential of nine geothermal resource areas in California and Utah are described. The sensitivity of this investment behavior to several policy incentives is also analyzed and discussed.

Cassel, T.A.V.; Edelstein, R.H.; Blair, P.D.; Amundsen, C.B.

1979-10-01T23:59:59.000Z

120

NERSC Supercomputers to Analyze Hurricane Coastal Surges, Help...  

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

NERSC Supercomputers to Analyze Hurricane Coastal Surges, Help Plan Rebuilding in Louisiana, Gulf Coast NERSC Supercomputers to Analyze Hurricane Coastal Surges, Help Plan...

Note: This page contains sample records for the topic "analyzes cash flow" 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

Federal Energy Management Program: Estimate and Analyze Greenhouse...  

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

Estimate and Analyze Greenhouse Gas Mitigation Strategy Implementation Costs to someone by E-mail Share Federal Energy Management Program: Estimate and Analyze Greenhouse Gas...

122

An expert system for analyzing eddy current measurements  

DOE Patents (OSTI)

A method and apparatus (called DODGER) analyzes eddy current data for heat exchanger tubes or any other metallic object. DODGER uses an expert system to analyze eddy current data by reasoning with uncertainty and pattern recognition. The expert system permits, DODGER to analyze eddy current data intelligently, an obviate operator uncertainty by analyzing the data in a uniform and consistent manner.

Levy, A.J.; Oppenlander, J.E.; Brudnoy, D.M.; Englund, J.M.; Loomis, K.C.

1991-12-31T23:59:59.000Z

123

Instability of Baroclinic Tidal Flow in a Stratified Fjord  

Science Conference Proceedings (OSTI)

The Taylor–Goldstein equation is used to investigate the stability of a baroclinic tidal flow observed in a stratified fjord. The flow is analyzed at hourly intervals when turbulent dissipation measurements were made. The critical gradient ...

Zhiyu Liu

2010-01-01T23:59:59.000Z

124

FLOW GATING  

DOE Patents (OSTI)

BS>This invention is a fast gating system for eiectronic flipflop circuits. Diodes connect the output of one circuit to the input of another, and the voltage supply for the receiving flip-flop has two alternate levels. When the supply is at its upper level, no current can flow through the diodes, but when the supply is at its lower level, current can flow to set the receiving flip- flop to the same state as that of the circuit to which it is connected. (AEC)

Poppelbaum, W.J.

1962-12-01T23:59:59.000Z

125

Flow cytometer  

DOE Patents (OSTI)

A Faraday cage enclosing the flow chamber of a cytometer and ground planes associated with each field deflection plate in concert therewith inhibit electric fields from varying the charge on designated events/droplets and further concentrates and increases forces applied to a charged event passing therethrough for accurate focus thereof while concomitantly inhibiting a potential shock hazard.

van den Engh, Ger (Seattle, WA)

1995-01-01T23:59:59.000Z

126

Flow cytometer  

DOE Patents (OSTI)

A Faraday cage is described which encloses the flow chamber of a cytometer. Ground planes associated with each field deflection plate inhibit electric fields from varying the charge on designated events/droplets and further concentrates. They also increase forces applied to a passing charged event for accurate focus while concomitantly inhibiting a potential shock hazard. 4 figs.

Van den Engh, G.

1995-11-07T23:59:59.000Z

127

Compilation of CFD Models of Various Solid Oxide Electrolyzers Analyzed at the Idaho National Laboratory  

SciTech Connect

Various three dimensional computational fluid dynamics (CFD) models of solid oxide electrolyzers have been created and analyzed at the Idaho National Laboratory since the inception of the Nuclear Hydrogen Initiative in 2004. Three models presented herein include: a 60 cell planar cross flow with inlet and outlet plenums, 10 cell integrated planar cross flow, and internally manifolded five cell planar cross flow. Mass, momentum, energy, and species conservation and transport are provided via the core features of the commercial CFD code FLUENT. A solid-oxide fuel cell (SOFC) module adds the electrochemical reactions and loss mechanisms and computation of the electric field throughout the cell. The FLUENT SOFC user-defined subroutine was modified for this work to allow for operation in the SOEC mode. Model results provide detailed profiles of temperature, Nernst potential, operating potential, activation over-potential, anode-side gas composition, cathode-side gas composition, current density and hydrogen production over a range of stack operating conditions. Predicted mean outlet hydrogen and steam concentrations vary linearly with current density, as expected. Contour plots of local electrolyte temperature, current density, and Nernst potential indicated the effects of heat transfer, endothermic reaction, Ohmic heating, and change in local gas composition. Results are discussed for using these models in the electrolysis mode. Discussion of thermal neutral voltage, enthalpy of reaction, hydrogen production is reported herein. Contour plots and discussion show areas of likely cell degradation, flow distribution in inlet plenum, and flow distribution across and along the flow channels of the current collectors

Grant Hawkes; James O'Brien

2012-06-01T23:59:59.000Z

128

Use of the Reference Energy System and EEMIS to analyze some cause-effect relationships  

SciTech Connect

The Energy Emergency Management Information System (EEMIS) and the Reference Energy System (RES) form an ideal framework for analyzing cause-effect relationships in the petroleum and natural gas energy systems. This report presents four case studies that demonstrate the applications of EEMIS and the RES for analyzing (1) the relationships between weather and the demand for energy in regions of the US, (2) the effect of a refinery outage on oil product distribution, (3) the impact of transportation outages on the flow and supply of petroleum, and (4) the relationship between income and energy usage.

D& #x27; Acierno, J; Hermelee, A

1979-11-01T23:59:59.000Z

129

2.853 Manufacturing Systems I: Analytical Methods and Flow Models, Fall 2002  

E-Print Network (OSTI)

Provides ways to conceptualize and analyze manufacturing systems and supply chains in terms of material flow, information flow, capacities, and flow times. Fundamental building blocks: Inventory and Queuing Models, Forecasting ...

Gershwin, S. B.

130

Stochastic Forcing of Planetary Scale Flow  

Science Conference Proceedings (OSTI)

Using geopotential height observations we analyze the fluctuations of the barotropic vorticity transfer from synoptic scale flow (zonal wavenumber m > 5) to planetary scales (m ? 5). We hypothesize that this transfer can be seen as a stochastic ...

Joseph Egger; H-D. Schilling

1984-03-01T23:59:59.000Z

131

Summer Surface Flow Characteristics over Northeast Colorado  

Science Conference Proceedings (OSTI)

Surface wind data from the program for Regional Observing and Forecasting Services (PROFS) have been analyzed to investigate the diurnal wind flow pattern over the broad drainage are of the South Platte River in northeast Colorado. A consistent ...

James J. Toth; Richard H. Johnson

1985-09-01T23:59:59.000Z

132

Computer-Aided Light Sheet Flow Visualization  

Science Conference Proceedings (OSTI)

A computer-aided flow visualization process has been developed to analyze video images acquired from rotating and translating light sheet visualization systems.The computer process integrates a mathematical model for image reconstruction, advanced computer ...

Stacy Kathryn; Severance Kurt; Childers Brooks A.

1993-07-01T23:59:59.000Z

133

www.eia.gov  

U.S. Energy Information Administration (EIA)

Consolidated Statement of Cash ... the Financial Accounting Standards Board required adoption of the Statement of Cash Flows to replace the sources and uses of ...

134

Hand-Held Analyzer Quickly Detects Buried Human Remains  

A lightweight hand-held analyzer invented by ORNL researchers uses visual andauditory cues to quickly alert investigators to the presence of buried human remains.The Lightweight Analyzer for Buried Remains And Decomposition Odor Recognition(LABRADOR) ...

135

A Fast Response Continuous Analyzer for Halogenated Atmospheric Tracers  

Science Conference Proceedings (OSTI)

A fast response version of the continuous SF6 analyzer originally introduced in 1976 has been developed. The new continuous analyzer has a response time constant of 0.36 s, which is 4–30 times faster than previous analyzers. The very fast ...

Richard L. Benner; Brian Lamb

1985-12-01T23:59:59.000Z

136

NREL: Hydrogen and Fuel Cells Research - New Report Analyzes...  

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

New Report Analyzes Options for Blending Hydrogen into Natural Gas Pipelines March 20, 2013 A new report by NREL hydrogen systems analysts explores the issues and opportunities...

137

Detecting and Analyzing Multiple Moving Objects in a Crowd  

with a video recording apparatus to detect, count, and analyze regions of activity in crowds was developed by computer scientists at ORNL. The algorithm

138

Seismic Technology Adapted to Analyzing and Developing Geothermal...  

Open Energy Info (EERE)

Last modified on July 22, 2011. Project Title Seismic Technology Adapted to Analyzing and Developing Geothermal Systems Below Surface-Exposed High-Velocity Rocks Project Type ...

139

Light-Weight Analyzer For Odor Recognition - Energy Innovation ...  

The invention provides a light weight analyzer, e.g., detector, capable of locating clandestine graves. The detector utilizes the very specific and unique chemicals ...

140

Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames  

E-Print Network (OSTI)

effects on cellular burning structures in lean premixedAnalyzing and Tracking Burning Structures in Lean Premixedthe turbulence of the burning process with the distribution

Bremer, Peer-Timo

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

ORISE: White paper analyzes Deepwater Horizon event for improving...  

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

Incidents: Common Challenges and Solutions White paper analyzes Deepwater Horizon response, identifies approaches for radiological or nuclear emergency planning The 2010...

142

Designing, testing, and analyzing coupled, flux transformer heat.  

E-Print Network (OSTI)

??The proposed research involves designing, testing, and ics. analyzing a coupled, flux transformer heat pipe system following the patent of Oktay and Peterson (1997). Experiments… (more)

Renzi, Kimberly Irene

2012-01-01T23:59:59.000Z

143

Analyze and understand SAP processes with knowledge maps  

Science Conference Proceedings (OSTI)

From the Book: The SAP Process Library is a standard reference work for analyzing and describing the basic processes of the SAP product ...

2002-04-01T23:59:59.000Z

144

Analyzing audit trails in the Aeolus security platform  

E-Print Network (OSTI)

This thesis presents the design and implementation of an analysis system for audit trails generated by Aeolus, a distributed security platform based on information flow control. Previous work focused on collecting these ...

Blankstein, Aaron (Aaron M.)

2011-01-01T23:59:59.000Z

145

Transportation Agency Tool to Analyze Benefits of Living Snow Fences  

E-Print Network (OSTI)

Transportation Agency Tool to Analyze Benefits of Living Snow Fences 5/31/12 Transportation Agency/31/12 Transportation Agency Tool to Analyze Benefits of Living Snow Fences Center for Integrated Natural Resources, Mobility, & Transportation Authority Benefits, Farmer Costs, & Carbon Impacts Focus Groups and Surveys

Minnesota, University of

146

Applying High Performance Computing to Analyzing by Probabilistic Model Checking  

E-Print Network (OSTI)

Applying High Performance Computing to Analyzing by Probabilistic Model Checking Mobile Cellular on the use of high performance computing in order to analyze with the proba- bilistic model checker PRISM. The Figure Generation Script 22 2 #12;1. Introduction We report in this paper on the use of high performance

Schneider, Carsten

147

Estimate and Analyze Greenhouse Gas Mitigation Strategy Implementation  

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

Estimate and Analyze Greenhouse Gas Mitigation Strategy Estimate and Analyze Greenhouse Gas Mitigation Strategy Implementation Costs Estimate and Analyze Greenhouse Gas Mitigation Strategy Implementation Costs October 7, 2013 - 10:18am Addthis Analyzing the cost of implementing each greenhouse gas (GHG) mitigation measure provides an important basis for prioritizing different emission reduction strategies. While actual costs should be used when available, this guidance provides cost estimates or considerations for the major emission reduction measures to help agencies estimate costs without perfect information. Cost criteria the agency may consider when prioritizing strategies include: Lifecycle cost Payback Cost effectiveness ($ invested per MTCO2e, metric tonne carbon dioxide equivalent avoided). Implementation costs should be analyzed for each emissions source:

148

Improved Fluid Flow Measurements: Feedwater Flow  

Science Conference Proceedings (OSTI)

This report describes the combined results of a utility survey and site visits concerning feedwater flow measurement in fossil-fueled power plants. In addition, a summary is provided of the technologies available to measure the volumetric feedwater flow rate in plants. This volumetric flow rate can be converted to a mass flow rate by knowing the pressure and temperature of the flow media. Velocity meters, differential pressure meters, and other closed-conduit flowmeters are discussed along with ...

2012-11-28T23:59:59.000Z

149

Monitoring probe for groundwater flow  

DOE Patents (OSTI)

A monitoring probe for detecting groundwater migration. The monitor features a cylinder made of a permeable membrane carrying an array of electrical conductivity sensors on its outer surface. The cylinder is filled with a fluid that has a conductivity different than the groundwater. The probe is placed in the ground at an area of interest to be monitored. The fluid, typically saltwater, diffuses through the permeable membrane into the groundwater. The flow of groundwater passing around the permeable membrane walls of the cylinder carries the conductive fluid in the same general direction and distorts the conductivity field measured by the sensors. The degree of distortion from top to bottom and around the probe is precisely related to the vertical and horizontal flow rates, respectively. The electrical conductivities measured by the sensors about the outer surface of the probe are analyzed to determine the rate and direction of the groundwater flow.

Looney, Brian B. (Aiken, SC); Ballard, Sanford (Albuquerque, NM)

1994-01-01T23:59:59.000Z

150

Turkey - Analyzing Greenhouse Gas Mitigation Issues | Open Energy  

Open Energy Info (EERE)

Turkey - Analyzing Greenhouse Gas Mitigation Issues Turkey - Analyzing Greenhouse Gas Mitigation Issues Jump to: navigation, search Logo: Turkey - Analyzing Greenhouse Gas Mitigation Issues Name Turkey - Analyzing Greenhouse Gas Mitigation Issues Agency/Company /Organization Argonne National Laboratory Partner Turkish Ministry of Energy and Natural Resources, Turkish Electricity Transmission-Generation Company Sector Energy Focus Area Energy Efficiency Topics Background analysis Website http://www.dis.anl.gov/pubs/39 Country Turkey Western Asia References http://www.dis.anl.gov/pubs/39156.pdf Abstract CEEESA trained a team of experts from Turkey's Ministry of Energy and Natural Resources (MENR) and the Turkish Electricity Transmission-Generation Company (TEAS) to use various ENPEP modules. CEEESA trained a team of experts from Turkey's Ministry of Energy and

151

Building Energy Software Tools Directory: Building Energy Analyzer  

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

Building Energy Analyzer Building Energy Analyzer Building Energy Analyzer logo. Provides quick economic analysis for commercial and industrial buildings. Building Energy Analyzer (BEA) estimates annual and monthly loads and costs associated with air-conditioning, heating, on-site power generation, thermal storage, and heat recovery systems for a given building and location. The user can compare the performance of standard and high efficiency electric chillers, variable speed electric chillers, absorption chillers, engine chillers, thermal storage, on-site generators, heat recovery, or desiccant systems. The user can also prepare side-by-side economic comparisons of different energy options and equipment life cycle cost analysis. The BEA is a system screening tool. It is a tool that is

152

Analyzing Altimeter Artifacts: Statistical Properties of Ocean Waveforms  

Science Conference Proceedings (OSTI)

In this paper waveforms, that is, returns from the ocean surface, from a number of spaceborne radar altimeter instruments [European Remote-sensing Satellites (ERS-1 and -2), TOPEX, and Poseidon] are examined. This is the first paper to analyze ...

G. D. Quartly; M. A. Srokosz; A. C. McMillan

2001-12-01T23:59:59.000Z

153

TASITA—Towed Air–Sea interface Temperature Analyzer  

Science Conference Proceedings (OSTI)

An accurate platinum RTD-based (resistive temperature device) system has been developed to measure the vertical temperature profile in the region of the atmosphere-ocean interface. TASITA, the towed air–sea interaction temperature analyzer, ...

R. P. Cechet; J. Bennett; I. Helmond; P. A. Coppin; E. F. Bradley; I. J. Bapton; J. S. Godfrey

1994-06-01T23:59:59.000Z

154

DOE Hydrogen and Fuel Cells Program: New Report Analyzes Options...  

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

New Report Analyzes Options for Blending Hydrogen into Natural Gas Pipelines Mar 14, 2013 The U.S. Department of Energy's Fuel Cell Technologies Office has issued a new report...

155

A Linear Method for Analyzing Lightning Field Changes  

Science Conference Proceedings (OSTI)

A constrained, least-squares method for analyzing multiple-station measurements of lightning field changes (?Es) is introduced. Previous methods have attempted to fit the spatial pattern of lightning ?Es using nonlinear models, such as a point ...

William J. Koshak; E. Philip Krider

1994-02-01T23:59:59.000Z

156

Stored Program Computer as an Associative Radiation Analyzer  

Science Conference Proceedings (OSTI)

A system design based on the use of a stored program on?line computer is presented here. The system is used as an associative radiation analyzer. The channel capacity of the system is 20 bits (one million channel analyzer). The data storage program is based on a threaded list (tree) algorithm. The number of different events which will be measured during a particular experiment can be assigned for each experiment. The count capacity is 4096 counts per channel

Branko Sou?ek

1965-01-01T23:59:59.000Z

157

Current Densities in speed analyzer with different symmetries  

Science Conference Proceedings (OSTI)

A comparative analysis of the currents in speed analyzer of speeds is made with different symmetries. Three kinds of symmetries are considered; plane, cylindrical and spherical. The analyzers considered are formed by threes electrodes, the selector grid, the discriminator and the collector. The selector grid has a negative potential and for the coulombian effect the space charge is formed with the ionic thermal bath. Using kinetic theory a strongly non linear differential equation is obtained which is solved by numerical calculation.

Valdeblanquez, E. [Ciclo Basico, Departamento de Fisica, Apartado 4011- A 526, Universidad del Zulia, Facultad de Ingenieria, Maracaibo, Edo. Zulia (Venezuela); Centro de Investigacion de Matematicas Aplicadas, CIMA, Apartado 10486, Universidad del Zulia, Facultad de Ingenieria, Maracaibo, Edo. Zulia (Venezuela)

2006-12-04T23:59:59.000Z

158

Plant analyzer for high-speed interactive simulation of BWR plant transients  

SciTech Connect

A combination of advanced modeling techniques and modern, special-purpose peripheral minicomputer technology was utilized to develop a plant analyzer which affords realistic predictions of plant transients and severe off-normal events in LWR power plants through on-line simulations at speeds up to 10 times faster than actual process speeds. The mathematical models account for nonequilibrium, nonhomogeneous two-phase flow effects in the coolant, for acoustical effects in the steam line and for the dynamics of the entire balance of the plant. Reactor core models include point kinetics with reactivity feedback due to void fraction, fuel temperature, coolant temperature, and boron concentration as well as a conduction model for predicting fuel and clad temperatures. Control systems and trip logic for plant protection systems are also simulated. The AD10 of Applied Dynamics International, a special-purpose peripheral processor, is used as the principal hardware of the plant analyzer.

Cheng, H.S.; Lekach, S.V.; Mallen, A.N.; Wulff, W.; Cerbone, R.J.

1984-01-01T23:59:59.000Z

159

Calculation of MCPR (minimum critical power ratio) for BWR transients using the BNL plant analyzer  

Science Conference Proceedings (OSTI)

The critical power ratio (CPR) is used for determining the thermal limits of boiling water reactors. In this study, critical power ratios for a series of transients run on the Brookhaven Plant Analyzer (BPA) (1) have been calculated. The transients include nominal base case simulations, simulations with variations in relief valve setpoints and the number of failed feedwater heaters, simulations at the 100% power, 75% flow point on the extended load line of the MEOD, and a simulation with partial feedwater heating. The plant represented with the BPA is a BWR/4 rated at 3293 MW with a 6.38 m (251'') vessel. Data were obtained by the Plant Analyzer Development Group at BNL from a variety of sources describing the Browns Ferry Plant.

Horak, W.C.; Diamond, D.J.

1987-06-01T23:59:59.000Z

160

An on-line acoustic fluorocarbon coolant mixture analyzer for the ATLAS silicon tracker  

SciTech Connect

The ATLAS silicon tracker community foresees an upgrade from the present octafluoro-propane (C{sub 3}F{sub 8}) evaporative cooling fluid - to a composite fluid with a probable 10-20% admixture of hexafluoro-ethane (C{sub 2}F{sub 6}). Such a fluid will allow a lower evaporation temperature and will afford the tracker silicon substrates a better safety margin against leakage current-induced thermal runaway caused by cumulative radiation damage as the luminosity profile at the CERN Large Hadron Collider increases. Central to the use of this new fluid is a new custom-developed speed-of-sound instrument for continuous real-time measurement of the C{sub 3}F{sub 8}/C{sub 2}F{sub 6} mixture ratio and flow. An acoustic vapour mixture analyzer/flow meter with new custom electronics allowing ultrasonic frequency transmission through gas mixtures has been developed for this application. Synchronous with the emission of an ultrasound 'chirp' from an acoustic transmitter, a fast readout clock (40 MHz) is started. The clock is stopped on receipt of an above threshold sound pulse at the receiver. Sound is alternately transmitted parallel and anti-parallel with the vapour flow for volume flow measurement from transducers that can serve as acoustic transmitters or receivers. In the development version, continuous real-time measurement of C{sub 3}F{sub 8}/C{sub 2}F{sub 6} flow and calculation of the mixture ratio is performed within a graphical user interface developed in PVSS-II, the Supervisory, Control and Data Acquisition standard chosen for LHC and its experiments at CERN. The described instrument has numerous potential applications - including refrigerant leak detection, the analysis of hydrocarbons, vapour mixtures for semiconductor manufacture and anesthetic gas mixtures. (authors)

Bates, R. [Dept. of Physics and Astronomy, Univ. of Glasgow, G12 8QQ (United Kingdom); Battistin, M. [CERN, 1211 Geneva 23 (Switzerland); Berry, S.; Bitadze, A. [Dept. of Physics and Astronomy, Univ. of Glasgow, G12 8QQ (United Kingdom); Bonneau, P. [CERN, 1211 Geneva 23 (Switzerland); Bousson, N. [Centre de Physique des Particules de Marseille, 163 Avenue de Luminy, 13288 Marseille Cedex 09 (France); Boyd, G. [Dept. of Physics and Astronomy, Univ. of Oklahoma, Norman, OK 73019 (United States); Botelho-Direito, J.; DiGirolamo, B. [CERN, 1211 Geneva 23 (Switzerland); Doubek, M. [Czech Technical Univ., Technicka 4, 166 07 Prague 6 (Czech Republic); Egorov, K. [Physics Dept., Indiana Univ., Bloomington, IN 47405 (United States); Godlewski, J. [CERN, 1211 Geneva 23 (Switzerland); Hallewell, G. [Centre de Physique des Particules de Marseille, 163 Avenue de Luminy, 13288 Marseille Cedex 09 (France); Katunin, S. [B.P. Konstantinov Petersburg Nuclear Physics Inst. PNPI, 188300 St. Petersburg (Russian Federation); Mathieu, M.; McMahon, S. [Rutherford Appelton Laboratory - Science and Technology Facilities Council, Chilton, Didcot OX11 OQX (United Kingdom); Nagai, K. [Graduate School of Pure and Applied Sciences, Univ. of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577 (Japan); Perez-Rodriguez, E. [CERN, 1211 Geneva 23 (Switzerland); Rozanov, A. [Centre de Physique des Particules de Marseille, 163 Avenue de Luminy, 13288 Marseille Cedex 09 (France); Vacek, V.; Vitek, M. [Czech Technical Univ., Technicka 4, 166 07 Prague 6 (Czech Republic)

2011-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

DECORRELATION TIMES OF PHOTOSPHERIC FIELDS AND FLOWS  

SciTech Connect

We use autocorrelation to investigate evolution in flow fields inferred by applying Fourier local correlation tracking (FLCT) to a sequence of high-resolution (0.''3), high-cadence ({approx_equal} 2 minute) line-of-sight magnetograms of NOAA active region (AR) 10930 recorded by the narrowband filter imager of the Solar Optical Telescope aboard the Hinode satellite over 2006 December 12 and 13. To baseline the timescales of flow evolution, we also autocorrelated the magnetograms, at several spatial binnings, to characterize the lifetimes of active region magnetic structures versus spatial scale. Autocorrelation of flow maps can be used to optimize tracking parameters, to understand tracking algorithms' susceptibility to noise, and to estimate flow lifetimes. Tracking parameters varied include: time interval {Delta}t between magnetogram pairs tracked, spatial binning applied to the magnetograms, and windowing parameter {sigma} used in FLCT. Flow structures vary over a range of spatial and temporal scales (including unresolved scales), so tracked flows represent a local average of the flow over a particular range of space and time. We define flow lifetime to be the flow decorrelation time, {tau}. For {Delta}t > {tau}, tracking results represent the average velocity over one or more flow lifetimes. We analyze lifetimes of flow components, divergences, and curls as functions of magnetic field strength and spatial scale. We find a significant trend of increasing lifetimes of flow components, divergences, and curls with field strength, consistent with Lorentz forces partially governing flows in the active photosphere, as well as strong trends of increasing flow lifetime and decreasing magnitudes with increases in both spatial scale and {Delta}t.

Welsch, B. T. [Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450 (United States); Kusano, K.; Yamamoto, T. T. [Solar Terrestrial Environment Laboratory, Nagoya University Furo-cho, Chikusa-ku, Nagoya 464-8601 (Japan); Muglach, K. [Code 674, NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

2012-03-10T23:59:59.000Z

162

Flow assurance and multiphase pumping  

E-Print Network (OSTI)

A robust understanding and planning of production enhancement and flow assurance is required as petroleum E&P activities are targeting deepwaters and long distances. Different flow assurance issues and their solutions are put together in this work. The use of multiphase pumps as a flow assurance solution is emphasized. Multiphase pumping aids flow assurance in different ways. However, the problem causing most concern is sand erosion. This work involved a detection-based sand monitoring method. Our objectives are to investigate the reliability of an acoustic sand detector and analyze the feasibility of gel injection as a method to mitigate sand erosion. Use of a sand detector coupled with twin-screw pumps is studied under varying flow conditions. The feasibility of gel injection to reduce slip and transport produced solids through twin-screw pump is investigated. A unique full-scale laboratory with multiphase pumps was utilized to carry out the experimental tests. The test results indicate that acoustic sand detection works in a narrow window around the calibration signature. An empirical correlation for predicting the twin-screw pump performance with viscous fluids was developed. It shows good agreement in the practical operational limits – 50% to 100% speed. The results indicate that viscous gel injection should be an effective erosion mitigation approach as it reduces slip, the principle cause of erosive wear. To correlate the performance of viscous fluid injection to hydroabrasive wear, further experimental investigation is needed.

Nikhar, Hemant G.

2006-12-01T23:59:59.000Z

163

Robot Reworked to Analyze Radiation in Japan | Department of Energy  

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

Robot Reworked to Analyze Radiation in Japan Robot Reworked to Analyze Radiation in Japan Robot Reworked to Analyze Radiation in Japan April 14, 2011 - 2:30pm Addthis A technician at Idaho National Laboratory demonstrates the modified TALON robot. A technician at Idaho National Laboratory demonstrates the modified TALON robot. John Schueler John Schueler Former New Media Specialist, Office of Public Affairs How does it work? Sensors on the TALON robots provide visual, radiological survey, and/or mapping data about areas that are not accessible to people because of too-high levels of radiation. Radiation-sensing packages have been sent for robots already in Japan. The Department of Energy has been working around the clock to provide whatever assistance we can to the Government of Japan as they work to bring

164

EPRI Increased Power Flow Guidebook -- 2011  

Science Conference Proceedings (OSTI)

The EPRI Increased Power Flow (IPF) Guidebook is a state-of-the-art and best-practices reference and guidebook on increasing the power flow capacities of existing overhead transmission lines, underground cables, power transformers, and substation equipment without compromising safety and reliability. The Guidebook discusses power system concerns and limiting conditions to increasing capacity, reviews available technology options and methods, illustrates the alternatives with case studies, and analyzes th...

2011-12-12T23:59:59.000Z

165

flow_measurements_cryogenic  

Science Conference Proceedings (OSTI)

... A dynamic weighing system is used to measure ... using liquid nitrogen at flow rates of 1 ... For volumetric flow rate measurement, the uncertainty in fluid ...

2013-06-17T23:59:59.000Z

166

Multiphase flow calculation software  

DOE Patents (OSTI)

Multiphase flow calculation software and computer-readable media carrying computer executable instructions for calculating liquid and gas phase mass flow rates of high void fraction multiphase flows. The multiphase flow calculation software employs various given, or experimentally determined, parameters in conjunction with a plurality of pressure differentials of a multiphase flow, preferably supplied by a differential pressure flowmeter or the like, to determine liquid and gas phase mass flow rates of the high void fraction multiphase flows. Embodiments of the multiphase flow calculation software are suitable for use in a variety of applications, including real-time management and control of an object system.

Fincke, James R. (Idaho Falls, ID)

2003-04-15T23:59:59.000Z

167

Multiphase Flow Modeling Research  

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

Science Chris Guenther, Director Computational Science Division RUA Spring Meeting, Morgantown, WV March 2013 2 NETL's Multiphase Flow Science Team * The Multiphase Flow Science...

168

Analyzing money distributions in `ideal gas' models of markets  

E-Print Network (OSTI)

We analyze an ideal gas like models of a trading market. We propose a new fit for the money distribution in the fixed or uniform saving market. For the marketwith quenched random saving factors for its agents we show that the steady state income ($m$) distribution $P(m)$ in the model has a power law tail with Pareto index $\

Chatterjee, A; Stinchcombe, Robert B; Chatterjee, Arnab; Chakrabarti, Bikas K.; Stinchcombe, Robin B.

2005-01-01T23:59:59.000Z

169

Analyzing an embedded sensor with timed automata in uppaal  

Science Conference Proceedings (OSTI)

An infrared sensor is modeled and analyzed in Uppaal. The sensor typifies the sort of component that engineers regularly integrate into larger systems by writing interface hardware and software. In all, three main models are developed. In the first model, ... Keywords: Timed automata, Uppaal, timed trace inclusion, timing diagrams

Timothy Bourke, Arcot Sowmya

2013-12-01T23:59:59.000Z

170

Seismic Technology Adapted to Analyzing and Developing Geothermal Systems  

Open Energy Info (EERE)

Technology Adapted to Analyzing and Developing Geothermal Systems Technology Adapted to Analyzing and Developing Geothermal Systems Below Surface-Exposed High-Velocity Rocks Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Seismic Technology Adapted to Analyzing and Developing Geothermal Systems Below Surface-Exposed High-Velocity Rocks Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Geophysical Exploration Technologies Project Description Historically, areas where the Earth surface is covered by an exposed high-velocity rock layer have been locations where conventional, single-component, seismic P-waves have failed to provide usable geological information. The research will use new seismic sources that emphasize shear waves and new seismic data-acquisition technology based on cable-free data recording to acquire seismic research data across two sites covered with surface-exposed highvelocity rocks. Research tasks will involve acquiring, processing, and interpreting both conventional seismic data and multicomponent seismic data. Scientists at BEG will analyze well logs, cores, and reservoir test data to construct geological models of the targeted geology across each study site.

171

Analyzing communities and their evolutions in dynamic social networks  

Science Conference Proceedings (OSTI)

We discover communities from social network data and analyze the community evolution. These communities are inherent characteristics of human interaction in online social networks, as well as paper citation networks. Also, communities may evolve over ... Keywords: Community, community net, evolution, evolution net, nonnegative matrix factorization, soft membership

Yu-Ru Lin; Yun Chi; Shenghuo Zhu; Hari Sundaram; Belle L. Tseng

2009-04-01T23:59:59.000Z

172

The HERMES Experiment I. Analyzing Powers in Pion Electroproduction  

E-Print Network (OSTI)

The HERMES Experiment I. Analyzing Powers in Pion Electroproduction II. The Aerogel Radiator and rescued me when I accidentally deleted my data. Al Massey and Jim Pendlay helped me design circuits, build for traveling to DESY and installing hundreds of aerogel tiles. I am indebted to countless members of the HERMES

173

Mining web query logs to analyze political issues  

Science Conference Proceedings (OSTI)

We present a novel approach to using anonymized web search query logs to analyze and visualize political issues. Our starting point is a list of politically annotated blogs (left vs. right). We use this list to assign a numerical political leaning to ... Keywords: opinion mining and sentiment analysis, partisanship, political leaning, web search logs

Ingmar Weber; Venkata Rama Kiran Garimella; Erik Borra

2012-06-01T23:59:59.000Z

174

Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames  

E-Print Network (OSTI)

Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames P.-T. Bremer1, G. Weber2 flames subject to different levels of tur- bulence. Due to their unstable nature, lean flames burn to quantitatively correlate the turbulence of the burning process with the distribution of burning regions, properly

175

Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames  

E-Print Network (OSTI)

Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames Peer-Timo Bremer, Member levels of turbulence. Due to their unstable nature, lean flames burn in cells separated by locally the turbulence of the burning process with the distribution of burning regions, properly segmented and selected

Pascucci, Valerio

176

Energy Analysis Department Analyzing the Effects of Temporal Wind Patterns  

E-Print Network (OSTI)

Energy Analysis Department Analyzing the Effects of Temporal Wind Patterns on the Value of Wind;Methods Summary Energy Analysis Department Wind Speed Data ­ TrueWind modeled wind-speed estimates (main;Summary of Key Findings (1) Energy Analysis Department Temporal patterns of wind production have

177

Portable wastewater flow meter  

DOE Patents (OSTI)

A portable wastewater flow meter particularly adapted for temporary use at a single location in measuring the rate of liquid flow in a circular entrance conduit of a sewer manhole both under free flow and submerged, open channel conditions and under fill pipe, surcharged conditions, comprising an apparatus having a cylindrical external surface and an inner surface that constricts the flow through the apparatus in such a manner that a relationship exists between (1) the difference between the static pressure head of liquid flowing through the entrance of the apparatus and the static pressure head of liquid flowing through the constriction, and (2) the rate of liquid flow through the apparatus.

Hunter, Robert M. (320 S. Wilson Ave., Bozeman, MT 59715)

1999-02-02T23:59:59.000Z

178

Portable wastewater flow meter  

DOE Patents (OSTI)

A portable wastewater flow meter particularly adapted for temporary use at a single location in measuring the rate of liquid flow in a circular entrance conduit of a sewer manhole both under free flow and submerged, open channel conditions and under full pipe, surcharged conditions, comprising an apparatus having a cylindrical external surface and an inner surface that constricts the flow through the apparatus in such a manner that a relationship exists between (1) the difference between the static pressure head of liquid flowing through the entrance of the apparatus and the static pressure head of liquid flowing through the constriction, and (2) the rate of liquid flow through the apparatus.

Hunter, Robert M. (320 S. Wilson Ave., Bozeman, MT 59715)

1990-01-01T23:59:59.000Z

179

Hydrogeophysical methods for analyzing aquifer storage and recovery systems  

SciTech Connect

Hydrogeophysical methods are presented that support the siting and monitoring of aquifer storage and recovery (ASR) systems. These methods are presented as numerical simulations in the context of a proposed ASR experiment in Kuwait, although the techniques are applicable to numerous ASR projects. Bulk geophysical properties are calculated directly from ASR flow and solute transport simulations using standard petrophysical relationships and are used to simulate the dynamic geophysical response to ASR. This strategy provides a quantitative framework for determining site-specific geophysical methods and data acquisition geometries that can provide the most useful information about the ASR implementation. An axisymmetric, coupled fluid flow and solute transport model simulates injection, storage, and withdrawal of fresh water (salinity {approx}500 ppm) into the Dammam aquifer, a tertiary carbonate formation with native salinity approximately 6000 ppm. Sensitivity of the flow simulations to the correlation length of aquifer heterogeneity, aquifer dispersivity, and hydraulic permeability of the confining layer are investigated. The geophysical response using electrical resistivity, time-domain electromagnetic (TEM), and seismic methods is computed at regular intervals during the ASR simulation to investigate the sensitivity of these different techniques to changes in subsurface properties. For the electrical and electromagnetic methods, fluid electric conductivity is derived from the modeled salinity and is combined with an assumed porosity model to compute a bulk electrical resistivity structure. The seismic response is computed from the porosity model and changes in effective stress due to fluid pressure variations during injection/recovery, while changes in fluid properties are introduced through Gassmann fluid substitution.

Minsley, B.J.; Ajo-Franklin, J.; Mukhopadhyay, A.; Morgan, F.D.

2009-12-01T23:59:59.000Z

180

Argonne Gas-filled Fragment Analyzer-AGFA  

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

Gas-filled Fragment Analyzer-AGFA Gas-filled Fragment Analyzer-AGFA Argonne National Laboratory B.B. Back, R.V.F. Janssens, W.F. Henning, T.L. Khoo, J.A. Nolen, D.H. Potterveld, G. Savard, D. Seweryniak Hebrew University, Jerusalem, Israel M. Paul University of Massachusetts Lowell P. Chowdhury, C.J. Lister University of Maryland W.B. Walters University of Edinburgh P.J. Woods Lawrence Berkeley National Laboratory K. Gregorich Oregon State University W. Loveland Date: February 11, 2013 Abstract As the premier stable-beam user facility in the USA, ATLAS is currently being upgraded to provide high intensity (>1 pμA) stable beams. The combination of new high- efficiency detectors and intense beams will move ATLAS to the forefront as a world

Note: This page contains sample records for the topic "analyzes cash flow" 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

A Computational Science Approach for Analyzing Culture - NERSC Science News  

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

A Computational A Computational Science Approach for Analyzing Culture A Computational Science Approach for Analyzing Culture February 18, 2010 | Tags: Life Sciences Contact: Linda Vu, lvu@lbl.gov, +1 510 486 2402 Click above image to watch the video of Jeremy Douglass speaking about Cultural Analytics. Just as photography revolutionized the study of art by allowing millions of people all over the world to scrutinize sculptures and paintings outside of museums, researchers from the Software Studies Initiative at the University of California at San Diego (UCSD) believe that a new paradigm called cultural analytics will drastically change the study of culture by allowing people to quantify evolving trends across time and countries. Inspired by scientists who have long used computers to transform

182

ORISE: White paper analyzes Deepwater Horizon event for improving nuclear  

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

Deepwater Horizon and Nuclear and Radiological Incidents: Common Challenges Deepwater Horizon and Nuclear and Radiological Incidents: Common Challenges and Solutions White paper analyzes Deepwater Horizon response, identifies approaches for radiological or nuclear emergency planning The 2010 Deepwater Horizon oil spill shares many of the same challenges associated with a radiological incident like the one considered in the Empire 09 exercise or even a much larger nuclear incident. By analyzing experiences during Deepwater Horizon, these challenges can be identified by the interagency in advance of a radiological or nuclear emergency and solutions made available. In the white paper Deepwater Horizon and Nuclear and Radiological Incidents: Common Challenges and Solutions (PDF, 462KB), ORISE examines the following three aspects of the Deepwater Horizon response:

183

NREL: Climate Neutral Research Campuses - Analyze Technology Options  

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

Analyze Technology Options Analyze Technology Options An effective climate action plan follows a portfolio approach and addresses each energy sector on campus. This section outlines how various technology options would fit into a campus climate action plan and provides examples of how others have used these technologies. Links to definitions, technology basics, and references are also provided. Use the Climate Action Planning Tool to identify which options will lead to the most significant reductions in consumption of fossil fuels and in turn meet campus greenhouse gas reduction goals. People and Policy People and Policy Formulate policies that have a long-term effect on energy consumption and identify human behaviors that lower energy use and greenhouse gas emissions. Energy Conservation

184

Analyzing occupancy profiles from a lighting controls field study  

SciTech Connect

Despite a number of published studies on the effectiveness of lighting controls in buildings, only one US study examines the occupancy patterns of building occupants. Occupancy profiles allow one to determine, for example, the probability that an office is occupied for each hour of the workday. Occupancy profiles are useful for many purposes including: (1) predicting the effectiveness of occupancy sensors for reducing peak demand, (2) evaluating the impact of human activity on building lighting and other electric loads and (3) providing lighting equipment manufacturers with detailed lighting operation data to help evaluate the impact of advanced lighting controls on equipment life. In this paper, we examine the occupancy profiles for 35 single person offices at a large office building in San Francisco and analyze the data to obtain average occupancy as a function of time of day. In addition, we analyzed the data to identify how the use of occupancy sensors may affect switching cycles and lamp life.

Rubinstein, Francis; Colak, Nesrin; Jennings, Judith; Neils, Danielle

2003-04-30T23:59:59.000Z

185

Analyzing video compression for transporting over wireless fading channels  

E-Print Network (OSTI)

Wireless video communication is becoming increasingly popular these days with new applications such as TV on mobile and video phones. Commercial success of these applications requires superior video quality at the receiver. So it is imperative to analyze the effect of a wireless channel on a video transmission. The aim of this research is to analyze the video transmission over Rayleigh fading channels for various bit error rates (BER), signal to noise ratios (Eb/N0) and Doppler rates, and to suggest which source coding scheme is best at which BER, Eb/N0 and Doppler rates. Alternative schemes such as hybrid (digital/analog) schemes were considered and their performances were compared with pure digital communication. It is also shown that the combination of digital and analog video communication does not yield any better performance compared to pure digital video communication.

Kannan, Karthik

2006-08-01T23:59:59.000Z

186

Analyzing interacting WS-BPEL processes using flexible model generation  

Science Conference Proceedings (OSTI)

We address the problem of analyzing the interaction between WS-BPEL processes. We present a technology chain that starts out with a WS-BPEL process and translates it into a Petri net model. On the model we decide controllability of the process (the existence ... Keywords: Business process modeling and analysis, Formal models in business process management, Petri nets, Process verification and validation, WS-BPEL

Niels Lohmann; Peter Massuthe; Christian Stahl; Daniela Weinberg

2008-01-01T23:59:59.000Z

187

DEVELOPMENT OF AN ON-LINE COAL WASHABILITY ANALYZER  

SciTech Connect

Washability analysis is the basis for nearly all coal preparation plant separations. Unfortunately, there are no on-line techniques for determining this most fundamental of all coal cleaning information. In light of recent successes at the University of Utah, it now appears possible to determine coal washability on-line through the use of x-ray computed tomography (CT) analysis. The successful development of such a device is critical to the establishment of process control and automated coal blending systems. In this regard, Virginia Tech, Terra Tek Inc., and several eastern coal companies have joined with the University of Utah and agreed to undertake the development of a x-ray CT-based on-line coal washability analyzer with financial assistance from DOE. The three-year project will cost $594,571, of which 33% ($194,575) will be cost-shared by the participants. The project involves development of appropriate software and extensive testing/evaluation of well-characterized coal samples from operating coal preparation plants. Each project participant brings special expertise to the project which is expected to create a new dimension in coal cleaning technology. Finally, it should be noted that the analyzer may prove to be a universal analyzer capable of providing not only washability analysis, but also particle size distribution analysis, ash analysis and perhaps pyritic sulfur analysis.

C.L. LIN; G.H. LUTTRELL; G.T. ADEL; JAN D. MILLER

1998-03-31T23:59:59.000Z

188

CAPITAL STRUCTURE, LIQUIDITY AND TRANSFERABLE HUMAN CAPITAL IN COMPETITIVE EQUILIBRIUM  

E-Print Network (OSTI)

This paper analyzes how human capital and economic uncertainty affect capital structure and managerial compensation. We model a competitive industry where wealth constrained managers provide human capital that can be transferred across firms, and where equityholders give managers access to the physical assets of the firm. Equityholders and managers bargain for the firm’s stochastic free cash flows. We show that the level of net debt acts as a tool to attract and retain human capital. Negative net debt occurs in volatile and human capital intensive industries. Cash holdings (or unused lines of credit) in booms serve as a costly hedge against liquidity shocks in recession. The cost of holding cash is internalized by managers, unlike the cost associated with raising cash in recession through a dilutive equity issue. We obtain simple expressions for the equilibrium payout rate and the managerial compensation rate and we show how, in recessions, they are influenced by each party’s outside option.

Bart M. Lambrecht; Grzegorz Pawlina

2009-01-01T23:59:59.000Z

189

Scanning retarding field analyzer for plasma profile measurements in the boundary of the Alcator C-Mod tokamak  

SciTech Connect

A new Retarding Field Analyzer (RFA) head has been created for the outer-midplane scanning probe system on the Alcator C-Mod tokamak. The new probe head contains back-to-back retarding field analyzers aligned with the local magnetic field. One faces 'upstream' into the field-aligned plasma flow and the other faces 'downstream' away from the flow. The RFA was created primarily to benchmark ion temperature measurements of an ion sensitive probe; it may also be used to interrogate electrons. However, its construction is robust enough to be used to measure ion and electron temperatures up to the last-closed flux surface in C-Mod. A RFA probe of identical design has been attached to the side of a limiter to explore direct changes to the boundary plasma due to lower hybrid heating and current drive. Design of the high heat flux (>100 MW/m{sup 2}) handling probe and initial results are presented.

Brunner, D.; LaBombard, B.; Ochoukov, R.; Whyte, D. [MIT PSFC Cambridge, Massachusetts 02139 (United States)

2013-03-15T23:59:59.000Z

190

MATERIAL-FLOW DATA STRUCTURES AS A BASIS FOR ENERGY INFORMATION SYSTEM DESIGN  

E-Print Network (OSTI)

we have analyzed the U.S. petroleum supply and distributiongeneralizability. Quantized petroleum flows among restrictedan analysis of the U.S. petroleum supply and distr bution

Krishnan, V.V.

2013-01-01T23:59:59.000Z

191

Summer Wind Flow Regimes over the Sacramento Valley  

Science Conference Proceedings (OSTI)

This study utilized conditional sampling to identify three frequent wind regimes in the lower Sacramento Valley. The major flow features of the mean diurnal wind patterns in the southern Sacramento Valley and surrounding areas were analyzed for ...

Laura L. Zaremba; John J. Carroll

1999-10-01T23:59:59.000Z

192

Effects of Environmental Flow upon Tropical Cyclone Structure  

Science Conference Proceedings (OSTI)

Numerical simulations of tropical-cyclone-like vortices are performed to analyze the effects of unidirectional vertical wind shear and translational flow upon the organization of convection within a hurricane’s core region and upon the intensity ...

William M. Frank; Elizabeth A. Ritchie

1999-09-01T23:59:59.000Z

193

EXPERIMENTAL AND THEORETICAL INVESTIGATION OF MULTIPHASE FLOW  

E-Print Network (OSTI)

. A laboratory flow apparatus was built to obtain data on water-air imbibition and oil-water drainage have also been analyzed. In the case of water-air imbibition, the thin fracture system showed a more with a 1mm spacer between the blocks, and a two- block system with no spacer. The blocks were sealed

194

Analyzing Vehicle Fuel Saving Opportunities through Intelligent Driver Feedback  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

NREL/CP-5400-53864.Posted with permission. NREL/CP-5400-53864.Posted with permission. Presented at the 2012 SAE World Congress, 24-26 April 2012, Detroit, Michigan 2012-01-0494 Analyzing Vehicle Fuel Saving Opportunities Published through Intelligent Driver Feedback 04/16/2012 Jeffrey Gonder, Matthew Earleywine and Witt Sparks National Renewable Energy Laboratory doi:10.4271/2012-01-0494 ABSTRACT While it is well known that "MPG will vary" based on how one drives, little independent research exists on the aggregate

195

Methods for Analyzing Electric Load Shape and its Variability  

Science Conference Proceedings (OSTI)

Current methods of summarizing and analyzing electric load shape are discussed briefly and compared. Simple rules of thumb for graphical display of load shapes are suggested. We propose a set of parameters that quantitatively describe the load shape in many buildings. Using the example of a linear regression model to predict load shape from time and temperature, we show how quantities such as the load?s sensitivity to outdoor temperature, and the effectiveness of demand response (DR), can be quantified. Examples are presented using real building data.

Price, Philip

2010-05-12T23:59:59.000Z

196

System and method for modeling and analyzing complex scenarios  

SciTech Connect

An embodiment of the present invention includes a method for analyzing and solving possibility tree. A possibility tree having a plurality of programmable nodes is constructed and solved with a solver module executed by a processor element. The solver module executes the programming of said nodes, and tracks the state of at least a variable through a branch. When a variable of said branch is out of tolerance with a parameter, the solver disables remaining nodes of the branch and marks the branch as an invalid solution. The valid solutions are then aggregated and displayed as valid tree solutions.

Shevitz, Daniel Wolf

2013-04-09T23:59:59.000Z

197

Severe accident sequences analyzed for a two-loop PWR  

Science Conference Proceedings (OSTI)

Different severe accident sequences have been analyzed for a two-loop Westinghouse pressurized water reactor (PWR) using the MELCOR code, version 1.8.4. The purpose of this study was to calculate source terms and the timing of events for severe accident sequences at this type of PWR to be used in the HAS-CAL code .The results calculated by MELCOR have been compared to results from the individual plant examination (IPE) of the Kewaunee nuclear power plant, also a two-loop Westinghouse PWR. The results of the Kewaunee IPE were obtained with the severe accident code MAAP.

Carbajo, J.J. [Oak Ridge National Lab., TN (United States)

1997-12-01T23:59:59.000Z

198

Inhomogeneity of fluid flow in Stirling engine regenerators  

SciTech Connect

The literature relating to inhomogeneity of flow regenerators is briefly reviewed. It is noted that, in contrast to other applications of regenerators, relatively little attention has been paid to the consequences of flow inhomogeneity for thermal regeneration in Stirling cycle machines. The construction of regenerator capsules for a large stationary Stirling engine is described. A test rig is developed to measure the gas velocity profile across the face of the packed regenerator capsules under steady flow conditions. Measured flow profiles for a number of different matrix materials and construction techniques are presented, and it is noted that stacked-mesh regenerator matrices tend to display marked inhomogeneities of flow. The consequences of flow inhomogeneity for flow friction and regenerator effectiveness are analyzed theoretically, and approximate formulae deduced. One method for reducing flow inhomogeneity in stacked-screen matrice

Jones, J.D. (School of Engineering Science, Simon Fraser Univ. Burnaby, British Columbia (CA))

1989-10-01T23:59:59.000Z

199

Unsteady flow volumes  

SciTech Connect

Flow volumes are extended for use in unsteady (time-dependent) flows. The resulting unsteady flow volumes are the 3 dimensional analog of streamlines. There are few examples where methods other than particle tracing have been used to visualize time varying flows. Since particle paths can become convoluted in time there are additional considerations to be made when extending any visualization technique to unsteady flows. We will present some solutions to the problems which occur in subdivision, rendering, and system design. We will apply the unsteady flow volumes to a variety of field types including moving multi-zoned curvilinear grids.

Becker, B.G.; Lane, D.A.; Max, N.L.

1995-03-01T23:59:59.000Z

200

Plant analyzer development for high-speed interactive simulation of BWR plant transients  

SciTech Connect

Advanced modeling techniques have been combined with modern, special-purpose peripheral minicomputer technology to develop a plant analyzer which provides realistic and accurate predictions of plant transients and severe off-normal events in nuclear power plants through on-line simulations at speeds of approximately 10 times faster than actual process speeds. The new simulation technology serves not only for carrying out routinely and efficiently safety analyses, optimizations of emergency procedures and design changes, parametric studies for obtaining safety margins and for generic training but also for assisting plant operations. Five modeling principles are presented which serve to achieve high-speed simulation of neutron kinetics, thermal conduction, nonhomogeneous and nonequilibrium two-phase flow coolant dynamics, steam line acoustical effects, and the dynamics of the balance of plant and containment systems, control systems and plant protection systems. 21 refs.

Wulff, W.; Cheng, H.S.; Mallen, A.N.

1986-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

Structure of Offshore Flow  

Science Conference Proceedings (OSTI)

The horizontal and vertical structure of the mean flow and turbulent fluxes are examined using aircraft observations taken near a barrier island on the east coast of the United States during offshore flow periods. The spatial structure is ...

Dean Vickers; L. Mahrt; Jielun Sun; Tim Crawford

2001-05-01T23:59:59.000Z

202

Ultrasonic flow metering system  

DOE Patents (OSTI)

A system for determining the density, flow velocity, and mass flow of a fluid comprising at least one sing-around circuit that determines the velocity of a signal in the fluid and that is correlatable to a database for the fluid. A system for determining flow velocity uses two of the inventive circuits with directional transmitters and receivers, one of which is set at an angle to the direction of flow that is different from the others.

Gomm, Tyler J. (Meridian, ID); Kraft, Nancy C. (Idaho Falls, ID); Mauseth, Jason A. (Pocatello, ID); Phelps, Larry D. (Pocatello, ID); Taylor, Steven C. (Idaho Falls, ID)

2002-01-01T23:59:59.000Z

203

Analyze Data to Evaluate Greenhouse Gas Emissions Profile for Buildings |  

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

Buildings Buildings Analyze Data to Evaluate Greenhouse Gas Emissions Profile for Buildings October 7, 2013 - 10:47am Addthis YOU ARE HERE Step 2 Once the relevant data have been collected, the next step is to identify the biggest building energy users and their greenhouse gas (GHG) emissions contribution. Ideally would be done at the program level using actual building characteristic and performance data. However, assumptions may be established about energy performance of buildings based on general location and building type. Ultimately, building efficiency measures need to be evaluated at the building level before implementing them, but facility energy managers can evaluate the relative impact of different GHG reduction approaches using assumptions about the building characteristics and estimates of efficiency

204

Analyze Data to Evaluate Greenhouse Gas Emissions Profile for Business  

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

Business Travel Business Travel Analyze Data to Evaluate Greenhouse Gas Emissions Profile for Business Travel October 7, 2013 - 1:28pm Addthis YOU ARE HERE Step 2 Once the key information has been compiled, a Federal agency should be well-positioned to address the following questions at the agency, program, or site level, as appropriate: What Proportion of Employees Travel? Developing an understanding of who is traveling will help to establish a more useful baseline and measure of progress than tracking change for all employees. An example of how this can better inform planning is shown in Figure 1. Looking only at the total trips and total employees at Agency ABC, the resulting metric is 2 trips per employee per year. However, because only 40% of employees at Agency ABC travel the average number of

205

A Reference Based Analysis Framework for Analyzing System Call Traces  

SciTech Connect

Reference based analysis (RBA) is a novel data mining tool for exploring a test data set with respect to a reference data set. The power of RBA lies in it ability to transform any complex data type, such as symbolic sequences and multi-variate categorical data instances, into a multivariate continuous representation. The transformed representation not only allows visualization of the complex data, which cannot be otherwise visualized in its original form, but also allows enhanced anomaly detection in the transformed feature space. We demonstrate the application of the RBA framework in analyzing system call traces and show how the transformation results in improved intrusion detection performance over state of art data mining based intrusion detection methods developed for system call traces.

Chandola, Varun [ORNL; Kumar, Vipin [University of Minnesota; Boriah, Shyam [University of Minnesota

2010-01-01T23:59:59.000Z

206

Vector Network Analyzer Techniques to measure WR340 Waveguide Windows  

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

6 6 Vector Network Analyzer Techniques to Measure WR340 Waveguide Windows T. L. Smith ASD / RF Group Advanced Photon Source Argonne National Laboratory June 26, 2002 Table of Contents 1) Introduction 2) Objective 3) Full Two-Port Calibration 4) TRL (Thru-Reflect-Line) 5) TRL / WR340 Waveguide Window Measurement 6) Conclusions 7) References 1. Introduction In its fundamental form, network analysis involves the measurement of incident, reflected, and transmitted waves that travel along transmission lines. Measuring both magnitude and phase of components is important for several reasons. First, both measurements are required to fully characterize a linear network and ensure distortion- free transmission. To design effective matching networks, complex impedances must be

207

Precise Measurement of Deuteron Tensor Analyzing Powers with BLAST  

SciTech Connect

We report a precision measurement of the deuteron tensor analyzing powers T{sub 20} and T{sub 21} at the MIT-Bates Linear Accelerator Center. Data were collected simultaneously over a momentum transfer range Q=2.15-4.50 fm{sup -1} with the Bates Large Acceptance Spectrometer Toroid using a highly polarized deuterium internal gas target. The data are in excellent agreement with calculations in a framework of effective field theory. The deuteron charge monopole and quadrupole form factors G{sub C} and G{sub Q} were separated with improved precision, and the location of the first node of G{sub C} was confirmed at Q=4.19{+-}0.05 fm{sup -1}. The new data provide a strong constraint on theoretical models in a momentum transfer range covering the minimum of T{sub 20} and the first node of G{sub C}.

Zhang, C.; Akdogan, T.; Bertozzi, W.; Botto, T.; Clasie, B.; DeGrush, A.; Dow, K.; Farkhondeh, M.; Franklin, W.; Gilad, S.; Hasell, D.; Kolster, H.; Maschinot, A.; Matthews, J.; Meitanis, N.; Milner, R.; Redwine, R.; Seely, J.; Shinozaki, A.; Tschalaer, C. [Laboratory for Nuclear Science and Bates Linear Accelerator Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2011-12-16T23:59:59.000Z

208

Laser beam apparatus and method for analyzing solar cells  

DOE Patents (OSTI)

A laser beam apparatus and method for analyzing, inter alia, the current versus voltage curve at the point of illumination on a solar cell and the open circuit voltage of a solar cell. The apparatus incorporates a lock-in amplifier, and a laser beam light chopper which permits the measurement of the AC current of the solar cell at an applied DC voltage at the position on the solar cell where the cell is illuminated and a feedback scheme which permits the direct scanning measurements of the open circuit voltage. The accuracy of the measurement is a function of the intensity and wavelength of the laser light with respect to the intensity and wavelength distribution of sunlight and the percentage the dark current is at the open circuit voltage to the short circuit current of the solar cell.

Staebler, David L. (Lawrenceville, NJ)

1980-01-01T23:59:59.000Z

209

Final Report for "Analyzing and visualizing next generation climate data"  

SciTech Connect

The project "Analyzing and visualizing next generation climate data" adds block-structured (mosaic) grid support, parallel processing, and 2D/3D curvilinear interpolation to the open-source UV-CDAT climate data analysis tool. Block structured grid support complies to the Gridspec extension submitted to the Climate and Forecast metadata conventions. It contains two parts: aggregation of data spread over multiple mosaic tiles (M-SPEC) and aggregation of temporal data stored in different files (F-SPEC). Together, M-SPEC and F-SPEC allow users to interact with data stored in multiple files as if the data were in a single file. For computational expensive tasks, a flexible, multi-dimensional, multi-type distributed array class allows users to process data in parallel using remote memory access. Both nodal and cell based interpolation is supported; users can choose between different interpolation libraries including ESMF and LibCF depending on the their particular needs.

Pletzer, Alexander

2012-11-13T23:59:59.000Z

210

Installation and Testing of a Jorin Visual Process Analyzer  

Science Conference Proceedings (OSTI)

The Jorin Visual Process Analyzer (ViPA) is an on-line instrument that uses video microscope imaging to detect and measure the physical characteristics of dispersed objects within a process stream or laboratory sample. Object analysis is performed by capturing an on-going sequence of single frames from the video feed and relaying the images in real time to a nearby control computer where the ViPA software then processes and transfigures the information from the images into meaningful process data. The ViPA captures and analyzes approximately 15 images per second and continuously records 17 material parameters including size, shape and optical density. The ViPA software uses the measured parameters to differentiate between different classes of objects including organic droplets, gas bubbles, and solid particles. Procurement of this instrument provides a unique capability to support predictive modeling and further understanding of mass transfer during solvent extraction processes. Organic droplet data collected using the ViPA can be used to develop dispersion profiles of the liquid-liquid mixing and disengagements sections for each type of process equipment. These profiles will provide insight into mixing dynamics and will guide the prevention of emulsion formation that leads to system losses. Additionally, the measurement capabilities of the ViPA will provide the input needed to create new two-phase Computational Fluid Dynamics (CFD) models that characterize both mixing and separation operations in the various types of equipment. These models can then be used to improve process efficiency by optimizing operation parameters for each proposed extraction cycle.

Kristi M Christensen

2010-09-01T23:59:59.000Z

211

Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames  

DOE Green Energy (OSTI)

This paper presents topology-based methods to robustly extract, analyze, and track features defined as subsets of isosurfaces. First, we demonstrate how features identified by thresholding isosurfaces can be defined in terms of the Morse complex. Second, we present a specialized hierarchy that encodes the feature segmentation independent of the threshold while still providing a flexible multi-resolution representation. Third, for a given parameter selection we create detailed tracking graphs representing the complete evolution of all features in a combustion simulation over several hundred time steps. Finally, we discuss a user interface that correlates the tracking information with interactive rendering of the segmented isosurfaces enabling an in-depth analysis of the temporal behavior. We demonstrate our approach by analyzing three numerical simulations of lean hydrogen flames subject to different levels of turbulence. Due to their unstable nature, lean flames burn in cells separated by locally extinguished regions. The number, area, and evolution over time of these cells provide important insights into the impact of turbulence on the combustion process. Utilizing the hierarchy we can perform an extensive parameter study without re-processing the data for each set of parameters. The resulting statistics enable scientist to select appropriate parameters and provide insight into the sensitivity of the results wrt. to the choice of parameters. Our method allows for the first time to quantitatively correlate the turbulence of the burning process with the distribution of burning regions, properly segmented and selected. In particular, our analysis shows that counter-intuitively stronger turbulence leads to larger cell structures, which burn more intensely than expected. This behavior suggests that flames could be stabilized under much leaner conditions than previously anticipated.

Bremer, Peer-Timo; Weber, Gunther; Pascucci, Valerio; Day, Marc; Bell, John

2009-06-01T23:59:59.000Z

212

COMMIX-PPC: A three-dimensional transient multicomponent computer program for analyzing performance of power plant condensers  

SciTech Connect

The COMMIX-PPC computer pregrain is an extended and improved version of earlier COMMIX codes and is specifically designed for evaluating the thermal performance of power plant condensers. The COMMIX codes are general-purpose computer programs for the analysis of fluid flow and heat transfer in complex Industrial systems. In COMMIX-PPC, two major features have been added to previously published COMMIX codes. One feature is the incorporation of one-dimensional equations of conservation of mass, momentum, and energy on the tube stile and the proper accounting for the thermal interaction between shell and tube side through the porous-medium approach. The other added feature is the extension of the three-dimensional conservation equations for shell-side flow to treat the flow of a multicomponent medium. COMMIX-PPC is designed to perform steady-state and transient. Three-dimensional analysis of fluid flow with heat transfer tn a power plant condenser. However, the code is designed in a generalized fashion so that, with some modification, it can be used to analyze processes in any heat exchanger or other single-phase engineering applications. Volume I (Equations and Numerics) of this report describes in detail the basic equations, formulation, solution procedures, and models for a phenomena. Volume II (User's Guide and Manual) contains the input instruction, flow charts, sample problems, and descriptions of available options and boundary conditions.

Chien, T.H.; Domanus, H.M.; Sha, W.T.

1993-02-01T23:59:59.000Z

213

Elbow mass flow meter  

SciTech Connect

Elbow mass flow meter. The present invention includes a combination of an elbow pressure drop generator and a shunt-type mass flow sensor for providing an output which gives the mass flow rate of a gas that is nearly independent of the density of the gas. For air, the output is also approximately independent of humidity.

McFarland, Andrew R. (College Station, TX); Rodgers, John C. (Santa Fe, NM); Ortiz, Carlos A. (Bryan, TX); Nelson, David C. (Santa Fe, NM)

1994-01-01T23:59:59.000Z

214

Improved modeling techniques for turbomachinery flow fields  

DOE Green Energy (OSTI)

This program has the objective of developing an improved methodology for modeling turbomachinery flow fields, including the prediction of losses and efficiency. Specifically, the program addresses the treatment of the mixing stress tensor terms attributed to deterministic flow field mechanisms required in steady-state Computational Fluid Dynamic (CFD) models for turbomachinery flow fields. These mixing stress tensors arise due to spatial and temporal fluctuations (in an absolute frame of reference) caused by rotor-stator interaction due to various blade rows and by blade-to-blade variation of flow properties. This will be accomplished in a cooperative program by Penn State University and the Allison Engine Company. These tasks include the acquisition of previously unavailable experimental data in a high-speed turbomachinery environment, the use of advanced techniques to analyze the data, and the development of a methodology to treat the deterministic component of the mixing stress tenor.

Lakshminarayana, B.; Fagan, J.R. Jr.

1995-12-31T23:59:59.000Z

215

Analyzing Vehicle Fuel Saving Opportunities through Intelligent Driver Feedback  

DOE Green Energy (OSTI)

Driving style changes, e.g., improving driver efficiency and motivating driver behavior changes, could deliver significant petroleum savings. This project examines eliminating stop-and-go driving and unnecessary idling, and also adjusting acceleration rates and cruising speeds to ideal levels to quantify fuel savings. Such extreme adjustments can result in dramatic fuel savings of over 30%, but would in reality only be achievable through automated control of vehicles and traffic flow. In real-world driving, efficient driving behaviors could reduce fuel use by 20% on aggressively driven cycles and by 5-10% on more moderately driven trips. A literature survey was conducted of driver behavior influences, and pertinent factors from on-road experiments with different driving styles were observed. This effort highlighted important driver influences such as surrounding vehicle behavior, anxiety over trying to get somewhere quickly, and the power/torque available from the vehicle. Existing feedback approaches often deliver efficiency information and instruction. Three recommendations for maximizing fuel savings from potential drive cycle improvement are: (1) leveraging applications with enhanced incentives, (2) using an approach that is easy and widely deployable to motivate drivers, and (3) utilizing connected vehicle and automation technologies to achieve large and widespread efficiency improvements.

Gonder, J.; Earleywine, M.; Sparks, W.

2012-06-01T23:59:59.000Z

216

Redox Flow Batteries: a Review  

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

1137-1164 Date Published 102011 ISSN 1572-8838 Keywords Flow battery, Flow cell, Redox, Regenerative fuel cell, Vanadium Abstract Redox flow batteries (RFBs) are enjoying a...

217

Cash Collection Point Application DATE DEPARTMENT  

E-Print Network (OSTI)

? Cashier's Office Armored Car Bank & Shop Other: YES NO YES NO IV. RECONCILIATIONS A. Are reconciliations

Sura, Philip

218

NUFinancials Revenue / Cash Receipt Ticket (CRT)  

E-Print Network (OSTI)

· Troubleshoot CRT errors Related Resources Refer to your revenue budget ­ or to the Office of Budget

Shull, Kenneth R.

219

Lateral flow strip assay  

DOE Patents (OSTI)

A lateral flow strip assay apparatus comprising a housing; a lateral flow strip in the housing, the lateral flow strip having a receiving portion; a sample collection unit; and a reagent reservoir. Saliva and/or buccal cells are collected from an individual using the sample collection unit. The sample collection unit is immersed in the reagent reservoir. The tip of the lateral flow strip is immersed in the reservoir and the reagent/sample mixture wicks up into the lateral flow strip to perform the assay.

Miles, Robin R. (Danville, CA); Benett, William J. (Livermore, CA); Coleman, Matthew A. (Oakland, CA); Pearson, Francesca S. (Livermore, CA); Nasarabadi, Shanavaz L. (Livermore, CA)

2011-03-08T23:59:59.000Z

220

Tandem Differential Mobility Analyzer/Aerodynamic Particle Sizer (APS) Handbook  

SciTech Connect

The tandem differential mobility analyzer (TDMA) is a single instrument that cycles through a series of complementary measurements of the physical properties of size-resolved submicron particles. In 2008, the TDMA was augmented through the addition of an aerodynamic particle sizer (APS), which extends the upper limit of the measured size distribution into the supermicron range. These two instruments are operated in parallel, but because they are controlled by a common computer and because the size distributions measured by the two are integrated in the produced datastreams, they are described together here. Throughout the day, the TDMA sequentially measures submicron aerosol size distributions and size-resolved hygroscopic growth distributions. More specifically, the instrument is operated as a scanning DMA to measure size distributions and as a TDMA to measure size-resolved hygroscopicity. A typical measurement sequence requires roughly 45 minutes. Each morning additional measurements are made of the relative humidity (RH) dependent hygroscopicity and temperature-dependent volatility of size-resolved particles. When the outside temperature and RH are within acceptable ranges, the hydration state of size-resolved particles is also characterized. The measured aerosol distributions complement the array of aerosol instruments in the Aerosol Observing System (AOS) and provide additional details of the light-scattering and cloud-nucleating characteristics of the aerosol.

Collins, D

2010-06-18T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

EBizPort: Collecting and Analyzing Business Intelligence Information  

E-Print Network (OSTI)

To make good decisions, businesses try to gather good intelligence information. Yet managing and processing a large amount of unstructured information and data stand in the way of greater business knowledge. An effective business intelligence tool must be able to access quality information from a variety of sources in a variety of forms, and it must support people as they search for and analyze that information. The EBizPort system was designed to address information needs for the business/IT community. EBizPort’s collection-building process is designed to acquire credible, timely, and relevant information. The user interface provides access to collected and metasearched resources using innovative tools for summarization, categorization, and visualization. The effectiveness, efficiency, usability, and information quality of the EBizPort system were measured. EBizPort significantly outperformed Brint, a business search portal, in search effectiveness, information quality, user satisfaction, and usability. Users particularly liked EBizPort’s clean and user-friendly interface. Results from our evaluation study suggest that the visualization function added value to the search and analysis process, that the generalizable collection-building technique can be useful for domain-specific information searching on the Web, and that the search interface was important for Web search and browse support.

Byron Marshall; Daniel Mcdonald; Hsinchun Chen; Wingyan Chung

2004-01-01T23:59:59.000Z

222

Method and system for analyzing and classifying electronic information  

DOE Patents (OSTI)

A data analysis and classification system that reads the electronic information, analyzes the electronic information according to a user-defined set of logical rules, and returns a classification result. The data analysis and classification system may accept any form of computer-readable electronic information. The system creates a hash table wherein each entry of the hash table contains a concept corresponding to a word or phrase which the system has previously encountered. The system creates an object model based on the user-defined logical associations, used for reviewing each concept contained in the electronic information in order to determine whether the electronic information is classified. The data analysis and classification system extracts each concept in turn from the electronic information, locates it in the hash table, and propagates it through the object model. In the event that the system can not find the electronic information token in the hash table, that token is added to a missing terms list. If any rule is satisfied during propagation of the concept through the object model, the electronic information is classified.

McGaffey, Robert W. (Oak Ridge, TN); Bell, Michael Allen (Powell, TN); Kortman, Peter J. (Knoxville, TN); Wilson, Charles H. (Etowah, TN)

2003-04-29T23:59:59.000Z

223

5-Megawatt solar-thermal test facility: facility construction-cost analysis  

SciTech Connect

The appropriation analysis, cash flow analysis, monthly cash flow analysis and construction cost estimate are tabulated for the 1 MW And 5 MW test facilities based upon limited initial appropriations, including work sheets for the construction cost estimates. (LEW)

1975-12-08T23:59:59.000Z

224

Validation of IVA Computer Code for Flow Boiling Stability Analysis  

SciTech Connect

IVA is a computer code for modeling of transient multiphase, multi-component, non-equilibrium flows in arbitrary geometry including flow boiling in 3D nuclear reactors. This work presents part of the verification procedure of the code. We analyze the stability of flow boiling in natural circulation loop. Experimental results collected on the AREVA/FANP KATHY loop regarding frequencies, mass flows and decay ratio of the oscillations are used for comparison. The comparison demonstrates the capability of the code to successfully simulate such class of processes. (author)

Ivanov Kolev, Nikolay [Framatome-ANP, PO Box 3220, D-91058, Erlangen (Germany)

2006-07-01T23:59:59.000Z

225

Solids mass flow determination  

DOE Patents (OSTI)

Method and apparatus for determining the mass flow rate of solids mixed with a transport fluid to form a flowing mixture. A temperature differential is established between the solids and fluid. The temperature of the transport fluid prior to mixing, the temperature of the solids prior to mixing, and the equilibrium temperature of the mixture are monitored and correlated in a heat balance with the heat capacities of the solids and fluid to determine the solids mass flow rate.

Macko, Joseph E. (Hempfield Township, Westmoreland County, PA)

1981-01-01T23:59:59.000Z

226

Turbulent flow in graphene  

E-Print Network (OSTI)

We demonstrate the possibility of a turbulent flow of electrons in graphene in the hydrodynamic region, by calculating the corresponding turbulent probability density function. This is used to calculate the contribution of the turbulent flow to the conductivity within a quantum Boltzmann approach. The dependence of the conductivity on the system parameters arising from the turbulent flow is very different from that due to scattering.

Kumar S. Gupta; Siddhartha Sen

2009-11-03T23:59:59.000Z

227

Multiple sort flow cytometer  

DOE Patents (OSTI)

A flow cytometer utilizes multiple lasers for excitation and respective fluorescence of identified dyes bonded to specific cells or events to identify and verify multiple events to be sorted from a sheath flow and droplet stream. Once identified, verified and timed in the sheath flow, each event is independently tagged upon separation from the flow by an electrical charge of +60, +120, or +180 volts and passed through oppositely charged deflection plates with ground planes to yield a focused six way deflection of at least six events in a narrow plane.

Van den Engh, Ger (Seattle, WA); Esposito, Richard J. (Seattle, WA)

1996-01-01T23:59:59.000Z

228

Droplet Laden Flow Data  

Science Conference Proceedings (OSTI)

... Flow Past a Heated Cylinder, Atomization and Sprays, 2006, 16(6 ... Numerical Modeling and Experimental Measurements of Water Spray Impact and ...

2013-07-15T23:59:59.000Z

229

Black String Flow  

E-Print Network (OSTI)

We give an exact description of the steady flow of a black string into a planar horizon. The event horizon is out of equilibrium and provides a simple, exact instance of a `flowing black funnel' in any dimension D>=5. It is also an approximation to a smooth intersection between a black string and a black hole, in the limit in which the black hole is much larger than the black string thickness. The construction extends easily to more general flows, in particular charged flows.

Emparan, Roberto

2013-01-01T23:59:59.000Z

230

Visualization of Fluid Flow  

Science Conference Proceedings (OSTI)

... Goujon and J. Devaney, Large Scale Simulations of Single and Multi- Component Flow in Porous Media in Proceedings of SPIE: The International ...

2010-12-15T23:59:59.000Z

231

Wind-Flow Patterns in the Grand Canyon as Revealed by Doppler Lidar  

Science Conference Proceedings (OSTI)

Many interesting flow patterns were found in the Grand Canyon by a scanning Doppler lidar deployed to the south rim during the 1990 Wintertime Visibility Study. Three are analyzed in this study: 1) flow reversal in the canyon, where the flow in ...

Robert M. Banta; Lisa S. Darby; Pirmin Kaufmann; David H. Levinson; Cui-Juan Zhu

1999-08-01T23:59:59.000Z

232

Financial situation of the Great Plains Coal Gasification Project  

Science Conference Proceedings (OSTI)

GAO reviewed drafts of DOE's National Energy Policy Plan IV, calculated synthetic gas prices using Great Plains methodology, converted those prices to current year dollars, and used DOE's computer model of the project's economics to analyze the cash flow forecast. GAO found both the model and the data produced to be reliable. (PSB)

Not Available

1983-10-17T23:59:59.000Z

233

Capabilities for information flow  

Science Conference Proceedings (OSTI)

This paper presents a capability-based mechanism for permissive yet secure enforcement of information-flow policies. Language capabilities have been studied widely, and several popular implementations, such as Caja and Joe-E, are available. By making ... Keywords: capabilities, information flow control

Arnar Birgisson; Alejandro Russo; Andrei Sabelfeld

2011-06-01T23:59:59.000Z

234

Elbow mass flow meter  

DOE Patents (OSTI)

The present invention includes a combination of an elbow pressure drop generator and a shunt-type mass flow sensor for providing an output which gives the mass flow rate of a gas that is nearly independent of the density of the gas. For air, the output is also approximately independent of humidity. 3 figs.

McFarland, A.R.; Rodgers, J.C.; Ortiz, C.A.; Nelson, D.C.

1994-08-16T23:59:59.000Z

235

Performance assessment of mass flow rate measurement capability in a large scale transient two-phase flow test system  

SciTech Connect

Mass flow is an important measured variable in the Loss-of-Fluid Test (LOFT) Program. Large uncertainties in mass flow measurements in the LOFT piping during LOFT coolant experiments requires instrument testing in a transient two-phase flow loop that simulates the geometry of the LOFT piping. To satisfy this need, a transient two-phase flow loop has been designed and built. The load cell weighing system, which provides reference mass flow measurements, has been analyzed to assess its capability to provide the measurements. The analysis consisted of first performing a thermal-hydraulic analysis using RELAP4 to compute mass inventory and pressure fluctuations in the system and mass flow rate at the instrument location. RELAP4 output was used as input to a structural analysis code SAPIV which is used to determine load cell response. The computed load cell response was then smoothed and differentiated to compute mass flow rate from the system. Comparison between computed mass flow rate at the instrument location and mass flow rate from the system computed from the load cell output was used to evaluate mass flow measurement capability of the load cell weighing system. Results of the analysis indicate that the load cell weighing system will provide reference mass flows more accurately than the instruments now in LOFT.

Nalezny, C.L.; Chapman, R.L.; Martinell, J.S.; Riordon, R.P.; Solbrig, C.W.

1979-01-01T23:59:59.000Z

236

Heat flow of Oregon  

DOE Green Energy (OSTI)

An extensive new heat flow and geothermal gradient data set for the State of Oregon is presented on a contour map of heat flow at a scale of 1:1,000,000 and is summarized in several figures and tables. The 1:1,000,000 scale heat flow map is contoured at 20 mW/m/sup 2/ (0.5 HFU) intervals. Also presented are maps of heat flow and temperature at a depth of 1 km averaged for 1/sup 0/ x 1/sup 0/ intervals. Histograms and averages of geothermal gradient and heat flow for the State of Oregon and for the various physiographic provinces within Oregon are also included. The unweighted mean flow for Oregon is 81.3 +- 2.7 mW/m/sup 2/ (1.94 +- 0.06 HFU). The average unweighted geothermal gradient is 65.3 +- 2.5/sup 0/C/km. The average heat flow value weighted on the basis of geographic area is 68 +- 5 mW/m/sup 2/ (1.63 +- 0.12 HFU) and the average weighted geothermal gradient is 55.0 +- 5/sup 0/C/km.

Blackwell, D.D.; Hull, D.A.; Bowen, R.G.; Steele, J.L.

1978-01-01T23:59:59.000Z

237

Multiphase Flow Modeling Research  

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

Science Science Chris Guenther, Director Computational Science Division RUA Spring Meeting, Morgantown, WV March 2013 2 NETL's Multiphase Flow Science Team * The Multiphase Flow Science Team develops physics-based simulation models to conduct applied scientific research. - Development of new theory - Extensive on-site and collaborative V&V efforts and testing - Engages in technology transfer - Applies the models to industrial scale problems. 3 Why is Multiphase Flow Science Needed? * Industry is increasingly relying on multiphase technologies to produce clean and affordable energy with carbon capture. * Unfortunately, the presence of a solid phase reduces the operating capacity of a typical energy device from its original design on average by 40% [1].

238

Shroud leakage flow discouragers  

SciTech Connect

A turbine assembly includes a plurality of rotor blades comprising a root portion, an airfoil having a pressure sidewall and a suction sidewall, and a top portion having a cap. An outer shroud is concentrically disposed about said rotor blades, said shroud in combination with said tip portions defining a clearance gap. At least one circumferential shroud leakage discourager is disposed within the shroud. The leakage discourager(s) increase the flow resistance and thus reduce the flow of hot gas flow leakage for a given pressure differential across the clearance gap to improve overall turbine efficiency.

Bailey, Jeremy Clyde (Middle Grove, NY); Bunker, Ronald Scott (Niskayuna, NY)

2002-01-01T23:59:59.000Z

239

Evaluation of uncertainties due to hydrogeological modeling and groundwater flow analysis: Steady flow, transient flow, and thermal studies  

SciTech Connect

Starting with regional geographic, geologic, surface and subsurface hydrologic, and geophysical data for the Tono area in Gifu, Japan, we develop an effective continuum model to simulate subsurface flow and transport in a 4 km by 6 km by 3 km thick fractured granite rock mass overlain by sedimentary layers. Individual fractures are not modeled explicitly. Rather, continuum permeability and porosity distributions are assigned stochastically, based on well-test data and fracture density measurements. Lithologic layering and one major fault, the Tsukiyoshi Fault, are assigned deterministically. We conduct three different studies: (1) the so-called base case, in which the model simulates the steady-state groundwater flow through the site, and then stream trace analysis is used to calculate travel times to the model boundary from specified release points; (2) simulations of transient flow during long term pump tests (LTPT) using the base-case model; and (3) thermal studies in which coupled heat flow and fluid flow are modeled, to examine the effects of the geothermal gradient on groundwater flow. The base-case study indicates that the choice of open or closed lateral boundaries has a strong influence on the regional groundwater flow patterns produced by the models, but no field data exist that can be used to determine which boundary conditions are more realistic. The LTPT study cannot be used to distinguish between the alternative boundary conditions, because the pumping rate is too small to produce an analyzable pressure response at the model boundaries. In contrast, the thermal study shows that the temperature distributions produced by the open and closed models differ greatly. Comparison with borehole temperature data may be used to eliminate the closed model from further consideration.

Doughty, Christine; Karasaki, Kenzi

2002-12-11T23:59:59.000Z

240

Some theoretical results useful in analyzing well performance under solution-gas drive  

SciTech Connect

This paper presents results pertinent to the analysis of well performance in solution-gas-drive systems. The characteristics of wells producing solution-gas-drive systems are documented. Procedures to correlate multiphase flow solutions with single-phase flow systems for both transient and boundary-dominated flows are presented.

Camacho, R.G. (National Univ. of Mexico/PEMEX (MX)); Raghavan, R. (Phillips Petroleum Co. (US))

1991-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

RMOTC - Testing - Flow Assurance  

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

Flow Assurance Flow Assurance RMOTC Flow Loop Facility Layout Notice: As of July 15th 2013, the Department of Energy announced the intent to sell Naval Petroleum Reserve Number 3 (NPR3). The sale of NPR-3 will also include the sale of all equipment and materials onsite. A decision has been made by the Department of Energy to complete testing at RMOTC by July 1st, 2014. RMOTC will complete testing in the coming year with the currently scheduled testing partners. For more information on the sale of NPR-3 and sale of RMOTC equipment and materials please join our mailing list here. Over a decade ago, RMOTC began cooperatively building a full-scale facility to test new flow assurance technology, mainly in the areas of hydrates and paraffins. Today, RMOTC's test facility consists of five individual loop

242

Maple Sap Flow  

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

I know a little about this topic even though I am from Illinois which is far from the heart of maple syrup country. Sap flows from a maple tree by internal pressure caused by the...

243

Modons in Shear Flow  

Science Conference Proceedings (OSTI)

Modons in shear flow are computed as equilibrium solutions of the equivalent barotropic vorticity equation using a numerical Newton–Kantorovich iterative technique with double Fourier spectral expansion. The model is given a first guess of an ...

Sue Ellen Haupt; James C. McWilliams; Joseph J. Tribbia

1993-05-01T23:59:59.000Z

244

Stochastically scalable flow control  

Science Conference Proceedings (OSTI)

Recent advances in the mathematical analysis of flow control have prompted the creation of the Scalable TCP (STCP) and Exponential RED (E-RED) algorithms. These are designed to be scalable under the popular deterministic delay ...

Thomas Voice

2009-10-01T23:59:59.000Z

245

RG flows and instantons  

Science Conference Proceedings (OSTI)

In these two lectures I discuss RG flow solutions in (1,0) six dimensional supergravity involving SU(2) Yang-Mills instantons. in the conformally flat part of the 6D metric. The solutions interpolate between two (4,0) supersymmetric AdS{sub 3} Multiplication-Sign S{sup 3} backgrounds with different values of AdS{sub 3} and S{sup 3} radii and describe RG flows in the dual 2D SCFT. The flows described are of v.e.v. type, driven by a vacuum expectation value of a (not exactly) marginal operator of dimension 2 in the UV. We give an interpretation of the supergravity solution in terms of the D1/D5 system in type I string theory on K3, whose effective field theory is expected to flow to a (4,0) SCFT in the infrared.

Gava, Edi [INFN, Trieste (Italy)

2012-09-24T23:59:59.000Z

246

Parallel flow diffusion battery  

DOE Patents (OSTI)

A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

Yeh, Hsu-Chi (Albuquerque, NM); Cheng, Yung-Sung (Albuquerque, NM)

1984-08-07T23:59:59.000Z

247

Islands in Zonal Flow  

Science Conference Proceedings (OSTI)

The impact of a meridional gradient in sea surface temperature (warm toward the equator, cold toward the pole) on the circulation around an island is investigated. The upper-ocean eastward geostrophic flow that balances such a meridional gradient ...

Michael A. Spall

2003-12-01T23:59:59.000Z

248

Parallel flow diffusion battery  

DOE Patents (OSTI)

A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

Yeh, H.C.; Cheng, Y.S.

1984-01-01T23:59:59.000Z

249

Casting Flow Chart  

Science Conference Proceedings (OSTI)

Figure: ...Fig. 1 Simplified flow diagram of the basic operations for producing a steel casting. Similar diagrams can be applied to other ferrous and nonferrous alloys produced by sand

250

Three dimensional flow processor  

DOE Patents (OSTI)

The 3D-flow processor is a general purpose programmable data stream pipelined device that allows fast data movement in six directions for digital signal processing applications such as identifying objects in a matrix in a programmable form. The 3D-flow processor can be used in one dimensional, two dimensional, and three dimensional topologies capable of sustaining an input data rate of up to 100 million data (or frames) per second in a parallel processing system.

Crosetto, D.B.

1992-01-01T23:59:59.000Z

251

Advanced Flow-Battery Systems  

Science Conference Proceedings (OSTI)

Presentation Title, Advanced Flow-Battery Systems ... Abstract Scope, Flow- battery systems (FBS) were originally developed over 30 years ago and have since ...

252

Fluid Metrology Calibration Services - Water Flow  

Science Conference Proceedings (OSTI)

Fluid Metrology Calibration Services - Water Flow. Water Flow Calibrations 18020C. ... NIST provides calibration services for water flow meters. ...

2011-10-03T23:59:59.000Z

253

High-Resolution Large-Eddy Simulations of Flow in a Steep Alpine Valley. Part II: Flow Structure and Heat Budgets  

Science Conference Proceedings (OSTI)

This paper analyzes the three-dimensional flow structure and the heat budget in a typical medium-sized and steep Alpine valley—the Riviera Valley in southern Switzerland. Aircraft measurements from the Mesoscale Alpine Programme (MAP)-Riviera ...

Andreas P. Weigel; Fotini K. Chow; Mathias W. Rotach; Robert L. Street; Ming Xue

2006-01-01T23:59:59.000Z

254

Meridional flow profile measurements with SOHO/MDI  

E-Print Network (OSTI)

We present meridional flow measurements of the Sun using a novel helioseismic approach for analyzing SOHO/MDI data in order to push the current limits in radial depth. Analyzing three consecutive months of data during solar minimum, we find that the meridional flow is as expected poleward in the upper convection zone, turns equatorward at a depth of around 40 Mm (~0.95 Rsol), and possibly changes direction again in the lower convection zone. This may indicate two meridional circulation cells in each hemisphere, one beneath the other.

U. Mitra-Kraev; M. J. Thompson

2007-11-30T23:59:59.000Z

255

Meridional Flow Field of Axisymmetric Flows in a Rotating Annulus  

Science Conference Proceedings (OSTI)

Measurements of the flow field were made of the axisymmetric flow in a differentially heated rotating fluid annulus by using a long-term tracking of a tracer particle. Its meridional flow profile is composed of a flow circulating in a large ...

T. Tajima; T. Nakamura

2000-09-01T23:59:59.000Z

256

Flow shear induced Compton scattering of electron drift instability  

SciTech Connect

Plasma flow shear effects on nonlinear saturation of electron drift waves are analyzed in the weak turbulence regime. Flow shear can enhance ion Compton scattering of long wavelength electron drift waves not only by modifying the beat wave-ion resonance condition, but also via the radial dependence of linear susceptibility. A nonlinear dispersion relation is obtained as a solution of the radially nonlocal nonlinear eigenmode equation. At nonlinear saturation, the spectral intensity of the fluctuations scales with flow shear as ({partial derivative}V{var phi}/{partial derivative}r){sup {minus}2} in addition to the linear dependence on the linear growth rate.

Hahm, T.S.

1992-02-01T23:59:59.000Z

257

Flow shear induced Compton scattering of electron drift instability  

Science Conference Proceedings (OSTI)

Plasma flow shear effects on nonlinear saturation of electron drift waves are analyzed in the weak turbulence regime. Flow shear can enhance ion Compton scattering of long wavelength electron drift waves not only by modifying the beat wave-ion resonance condition, but also via the radial dependence of linear susceptibility. A nonlinear dispersion relation is obtained as a solution of the radially nonlocal nonlinear eigenmode equation. At nonlinear saturation, the spectral intensity of the fluctuations scales with flow shear as ({partial_derivative}V{var_phi}/{partial_derivative}r){sup {minus}2} in addition to the linear dependence on the linear growth rate.

Hahm, T.S.

1992-02-01T23:59:59.000Z

258

A fracture network model for water flow and solute transport  

DOE Green Energy (OSTI)

This paper summarizes code development work and sample calculations for FRACNET, a two-dimensional steady state simulator of fluid flow and solute transport in fractured porous media. The model analyzes flow and transport by generating a fracture network based on statistical characteristics of fractures obtained from well logs and other data. After a network is generated, flow and tracer transport are computed for appropriate boundary conditions and wellbore source/sink terms. In addition, for a given realization, the code can be used to indicate whether the medium can be treated as an equivalent porous medium. 18 refs., 7 figs.

Robinson, B.A.

1989-01-01T23:59:59.000Z

259

Formation flow channel blocking  

SciTech Connect

A method is claimed for selectively blocking high permeability flow channels in an underground hydrocarbon material bearing formation having flow channels of high permeability and having flow channels of lesser permeability. The method includes the following steps: introducing a blocking material fluid comprising a blocking material in a carrier into the flow channels through an injection well in communication with the formation; introducing a buffer fluid into the formation through the injection well for the buffer fluid to displace the blocking material fluid away from the injection well; allowing the blocking material to settle in the channels to resist displacement by fluid flowing through the channels; introducing a quantity of an activating fluid into the channels through the injection well at a sufficient rate for the activating fluid to displace the buffer fluid and finger into the high permeability channels to reach the blocking material in the high permeability channels without reaching the blocking material in the low permeability channels, the activating fluid being adapted to activate the blocking material which it reaches to cause blocking of the high permeability channels.

Kalina, A.I.

1982-11-30T23:59:59.000Z

260

Two-phase flow studies  

DOE Green Energy (OSTI)

The two-phase flow program is directed at understanding the hydrodynamics of two-phase flows. The two-phase flow regime is characterized by a series of flow patterns that are designated as bubble, slug, churn, and annular flow. Churn flow has received very little scientific attention. This lack of attention cannot be justified because calculations predict that the churn flow pattern will exist over a substantial portion of the two-phase flow zone in producing geothermal wells. The University of Houston is experimentally investigating the dynamics of churn flow and is measuring the holdup over the full range of flow space for which churn flow exists. These experiments are being conducted in an air/water vertical two-phase flow loop. Brown University has constructed and is operating a unique two-phase flow research facility specifically designed to address flow problems of relevance to the geothermal industry. An important feature of the facility is that it is dedicated to two-phase flow of a single substance (including evaporation and condensation) as opposed to the case of a two-component two-phase flow. This facility can be operated with horizontal or vertical test sections of constant diameter or with step changes in diameter to simulate a geothermal well profile.

Hanold, R.J.

1983-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

Microwave fluid flow meter  

DOE Patents (OSTI)

A microwave fluid flow meter is described utilizing two spaced microwave sensors positioned along a fluid flow path. Each sensor includes a microwave cavity having a frequency of resonance dependent upon the static pressure of the fluid at the sensor locations. The resonant response of each cavity with respect to a variation in pressure of the monitored fluid is represented by a corresponding electrical output which can be calibrated into a direct pressure reading. The pressure drop between sensor locations is then correlated as a measure of fluid velocity. In the preferred embodiment the individual sensor cavities are strategically positioned outside the path of fluid flow and are designed to resonate in two distinct frequency modes yielding a measure of temperature as well as pressure. The temperature response can then be used in correcting for pressure responses of the microwave cavity encountered due to temperature fluctuations.

Billeter, Thomas R. (Richland, WA); Philipp, Lee D. (Richland, WA); Schemmel, Richard R. (Lynchburg, VA)

1976-01-01T23:59:59.000Z

262

Transformed Eulerian-Mean Theory. Part II: Potential Vorticity Homogenization and the Equilibrium of a Wind- and Buoyancy-Driven Zonal Flow  

Science Conference Proceedings (OSTI)

The equilibrium of a modeled wind- and buoyancy-driven, baroclinically unstable, flow is analyzed using the transformed Eulerian-mean (TEM) approach described in Part I. Within the near-adiabatic interior of the flow, Ertel potential vorticity is ...

Allen Kuo; R. Alan Plumb; John Marshall

2005-02-01T23:59:59.000Z

263

Evaluation of a slotted orifice plate flow meter using horizontal two phase flow  

E-Print Network (OSTI)

In the past several years, the slotted orifice plate has been evaluated for its performance as a single phase flow meter using air and as a two-phase flow meter using water and air. These previous studies have both shown superior performance to that of the standard orifice plate flow meter. The purpose of this study is to evaluate the slotted orifice plate two-phase flow meter with water and steam as the working fluids and compare this data with previous data taken from other test facilities to further develop the calibration of this new two-phase flow meter. Tests for repeatability will be shown for beta ratios of 0.430, 0.467, and 0.500. Reproducibility will also be evaluated between a water and steam facility and three water and air facilities. This includes comparing data obtained using a set of brass slotted orifice plates and a set of stainless steel slotted orifice plates. The brass plates were tested in one water and air facility in a previous study and the stainless steel plates were tested using two phase data from air and water and also from steam and water. Differential pressure effects using water and steam as a mixture will be considered since there is a change in fluid quality as the fluid drops in pressure across an orifice plate. Reproducibility from six different data sets found using different facilities, different slotted orifice plates, and different working fluids were shown to converge to the same relationship. This relationship contained non-dimensional variables which included the calibration coefficient (KY= flow coefficient (K) multiplied by the expansion factor (Y)), the Euler number, and the beta ratio. These results were analyzed to develop a calibration for the slotted orifice plate two-phase flow meter which can ultimately be used to determine the flow rate of a two-phase mixture.

Flores, Anita Elena

2000-01-01T23:59:59.000Z

264

Flow Test | Open Energy Information  

Open Energy Info (EERE)

Flow Test Flow Test Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Flow Test Details Activities (38) Areas (33) Regions (1) NEPA(3) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Testing Techniques Parent Exploration Technique: Well Testing Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Flow tests provide information on permeability, recharge rates, reservoir pressures, fluid chemistry, and scaling. Thermal: Flow tests can measure temperature variations with time to estimate characteristics about the heat source. Dictionary.png Flow Test: Flow tests are typically conducted shortly after a well has been drilled to test its productivity. The well is opened and fluids are released, the

265

Mass-Loaded Flows  

E-Print Network (OSTI)

A key process within astronomy is the exchange of mass, momentum, and energy between diffuse plasmas in many types of astronomical sources (including planetary nebulae, wind-blown bubbles, supernova remnants, starburst superwinds, and the intracluster medium) and dense, embedded clouds or clumps. This transfer affects the large scale flows of the diffuse plasmas as well as the evolution of the clumps. I review our current understanding of mass-injection processes, and examine intermediate-scale structure and the global effect of mass-loading on a flow. I then discuss mass-loading in a variety of diffuse sources.

J. M. Pittard

2006-07-13T23:59:59.000Z

266

Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I.Skillicorn 1 Azimuthal asymmetry  

E-Print Network (OSTI)

Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I.Skillicorn 1 Azimuthal asymmetry using energy flow method Azimuthal angle distribution at Q2 >100 GeV2 Energy flow method.Ukleja on behalf of the ZEUS Collaboration #12; Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I

267

Applications of Fast Response Continuous SF6 Analyzers to In Situ Cloud Studies  

Science Conference Proceedings (OSTI)

The airborne applications of two recently developed analyzers for sulfur hexafluoride (SF6) to investigations of cloud top mixing and cloud seeding are described. The analyzers were developed by AeroVironment (AV) and by Washington State ...

Jeffrey L. Stith; Richard L. Benner

1987-12-01T23:59:59.000Z

268

Flow cytometry apparatus  

DOE Patents (OSTI)

An obstruction across the flow chamber creates a one-dimensional convergence of a sheath fluid. A passageway in the obstruction directs flat cells near to the area of one-dimensional convergence in the sheath fluid to provide proper orientation of flat cells at fast rates. 6 figs.

Pinkel, D.

1987-11-30T23:59:59.000Z

269

Flow cytometry apparatus  

DOE Patents (OSTI)

An obstruction across the flow chamber creates a one dimensional convergence of a sheath fluid. A passageway in the construction directs flat cells near to the area of one dimensional convergence in the sheath fluid to provide proper orientation of flat cells at fast rates.

Pinkel, Daniel (Walnut Creek, CA)

1991-01-01T23:59:59.000Z

270

US energy flow, 1991  

SciTech Connect

Trends in energy consumption and assessment of energy sources are discussed. Specific topics discussed include: energy flow charts; comparison of energy use with 1990 and earlier years; supply and demand of fossil fuels (oils, natural gas, coal); electrical supply and demand; and nuclear power.

Borg, I.Y.; Briggs, C.K.

1992-06-01T23:59:59.000Z

271

Can aerosols be trapped in open flows?  

E-Print Network (OSTI)

The fate of aerosols in open flows is relevant in a variety of physical contexts. Previous results are consistent with the assumption that such finite-size particles always escape in open chaotic advection. Here we show that a different behavior is possible. We analyze the dynamics of aerosols both in the absence and presence of gravitational effects, and both when the dynamics of the fluid particles is hyperbolic and nonhyperbolic. Permanent trapping of aerosols much heavier than the advecting fluid is shown to occur in all these cases. This phenomenon is determined by the occurrence of multiple vortices in the flow and is predicted to happen for realistic particle-fluid density ratios.

Rafael D. Vilela; Adilson E. Motter

2007-06-10T23:59:59.000Z

272

Dropwindsonde Observations of the Environmental Flow of Hurricane Josephine (1984): Relationships to Vortex Motion  

Science Conference Proceedings (OSTI)

Omega dropwindsonde (ODW) observations from three synoptic-flow experiments in environment of Hurricane Josephine have been analyzed in a research mode using an objective analysis procedure. The nominal times of the analyses are 0000 UTC 10, 11, ...

James L. Franklin

1990-12-01T23:59:59.000Z

273

Low-Frequency Velocity and Temperature Fluctuations in Katabatic Valley Flows  

Science Conference Proceedings (OSTI)

Observations of velocity and temperature fluctuations made during katabatic flow conditions in two deeply incised valleys are analyzed using variance, coherence, and phase spectra. Variance spectra obtained at valley floor sidewall locations show ...

G. L. Stone; D. E. Hoard

1989-06-01T23:59:59.000Z

274

Multifractal Analysis of Line-Source Plume Concentration Fluctuations in Surface-Layer Flows  

Science Conference Proceedings (OSTI)

A codimension multifractal methodology was used to analyze and to model scalar concentration fluctuations within sulfur hexafluoride tracer gas plumes from a line source in atmospheric surface-layer flows. Correspondence was exhibited between the ...

D. Finn; B. Lamb; M. Y. Leclerc; S. Lovejoy; S. Pecknold; D. Schertzer

2001-02-01T23:59:59.000Z

275

Influence of the Synoptic-Scale Flow on Sea Breezes Observed during CaPE  

Science Conference Proceedings (OSTI)

Mean sea-breeze characteristics were determined by analyzing a number of sea-breeze events during offshore, parallel, and onshore flow regimes during the Convection and Precipitation/Electrification Experiment (CaPE). It was observed that ...

Nolan T. Atkins; Roger M. Wakimoto

1997-09-01T23:59:59.000Z

276

A Hidden Markov Model Perspective on Regimes and Metastability in Atmospheric Flows  

Science Conference Proceedings (OSTI)

In this study, data from three atmospheric models are analyzed to investigate the existence of atmospheric flow regimes despite nearly Gaussian statistics of the planetary waves in these models. A hierarchy of models is used, which describes the ...

Christian Franzke; Daan Crommelin; Alexander Fischer; Andrew J. Majda

2008-04-01T23:59:59.000Z

277

Self-Organized Network Flows  

E-Print Network (OSTI)

A model for traffic flow in street networks or material flows in supply networks is presented, that takes into account the conservation of cars or materials and other significant features of traffic flows such as jam formation, spillovers, and load-dependent transportation times. Furthermore, conflicts or coordination problems of intersecting or merging flows are considered as well. Making assumptions regarding the permeability of the intersection as a function of the conflicting flows and the queue lengths, we find self-organized oscillations in the flows similar to the operation of traffic lights.

Helbing, D; Lämmer, S; Helbing, Dirk; Siegmeier, Jan; L\\"{a}mmer, Stefan

2007-01-01T23:59:59.000Z

278

Designing Axial Flow Fan for Flow and Noise  

E-Print Network (OSTI)

A comprehensive finite element methodology is developed to predict the compressible flow performance of a non-symmetric 7-blade axial flow fan, and to quantify the source strength and sound pressure levels at any location in the system. The acoustic and flow performances of the fan are predicted simultaneously using a computational aero-acoustic technique combining transient flow analysis and noise propagation. The calculated sound power levels compare favorably with the measured sound power data per AMCA 300-96 code.

Subrata Roy; Phillip Cho; Fred Périé; International Off-highway

1999-01-01T23:59:59.000Z

279

Intraspecific relationships among the stygobitic shrimp Typhlatya mitchelli, by analyzing sequence data from mitochondrial DNA  

E-Print Network (OSTI)

Intraspecific relationships among the anchialine cave shrimp Typhlatya mitchelli were examined by sequencing a total of 1505 bp from portions of three mitochondrial DNA genes. Cytochrome b, cytochrome oxidase I, and 16S rRNA were partially sequenced and analyzed for specimens from six different cenotes (water-filled caves) across the Yucatan Peninsula, Mexico. The conspecific Typhlatya pearsei that is sympatric with T. mitchelli was also sequenced and used as the outgroup. Comparisons among specimens of T. mitchelli yielded low sequence divergence values (0-1.7%), with the majority being less than 0.4%. Phylogenetic tree topologies reconstructed with neighbor-joining, maximum likelihood, and maximum parsimony were in agreement in regards of the resolution of deep branches. Also, there was no obvious geographic differentiation among the majority of T. mitchelli samples, with the exception of specimens from Cenote San Antonio Chiich (Yokdzonot, Yucatan, Mexico) which all clustered into an extremely well supported monophyletic group. The level of differentiation of this group, together with the nearly total absence of differentiation among T. mitchelli from distant cave systems, suggests that this is an Evolutionary Significant Unit (ESU), which may correspond to a new species. This unidentified Typhlatya from Cenote San Antonio Chiich was helpful in establishing a period in which the epigean ancestor colonized the cenotes. Based on pairwise distance data and previously published shrimp molecular clocks (Baldwin et al., 1998), T. mitchelli and the putative new Typhlatya species last shared a common ancestor between 3-5 million years ago (mya), during the mid-Pliocene era, while T. mitchelli and T. pearsei was approximately 7-10 mya (middle to late Miocene). The ancestor to T. mitchelli and the unidentified Typhlatya species abandoned its shallow coastal water existence in the early Pliocene and eventually expanded its range across the peninsula. Approximately 4 mya, Cenote San Antonio Chiich became isolated from the remaining gene pool thereby halting gene flow. As the regional water table fluctuated in response to the rise and fall of Pleistocene sea levels, T. mitchelli actively colonized the peninsula. The discovery of a single, continuous subterranean freshwater system provides for a better understanding of anchialine biogeography within the Yucatan Peninsula.

Webb, Michael Scott

2003-05-01T23:59:59.000Z

280

Analyzing Losses: Transuranics into Waste and Fission Products into Recycled Fuel  

SciTech Connect

All mass streams from separations and fuel fabrication are products that must meet criteria. Those headed for disposal must meet waste acceptance criteria (WAC) for the eventual disposal sites corresponding to their waste classification. Those headed for reuse must meet fuel or target impurity limits. A “loss” is any material that ends up where it is undesired. The various types of losses are linked in the sense that as the loss of transuranic (TRU) material into waste is reduced, often the loss or carryover of waste into TRU or uranium is increased. We have analyzed four separation options and two fuel fabrication options in a generic fuel cycle. The separation options are aqueous uranium extraction plus (UREX+1), electrochemical, Atomics International reduction oxidation separation (AIROX), and melt refining. UREX+1 and electrochemical are traditional, full separation techniques. AIROX and melt refining are taken as examples of limited separations, also known as minimum fuel treatment. The fuels are oxide and metal. To define a generic fuel cycle, a fuel recycling loop is fed from used light water reactor (LWR) uranium oxide fuel (UOX) at 51 MWth-day/kg-iHM burnup. The recycling loop uses a fast reactor with TRU conversion ratio (CR) of 0.50. Excess recovered uranium is put into storage. Only waste, not used fuel, is disposed – unless the impurities accumulate to a level so that it is impossible to make new fuel for the fast reactor. Impurities accumulate as dictated by separation removal and fission product generation. Our model approximates adjustment to fast reactor fuel stream blending of TRU and U products from incoming LWR UOX and recycling FR fuel to compensate for impurity accumulation by adjusting TRU:U ratios. Our mass flow model ignores postulated fuel impurity limits; we compare the calculated impurity values with those limits to identify elements of concern. AIROX and melt refining cannot be used to separate used LWR UOX-51 because they cannot separate U from TRU, it is then impossible to make X% TRU for fast reactors with UOX-51 used fuel with 1.3% TRU. AIROX and melt refining can serve in the recycle loop for about 3 recycles, at which point the accumulated impurities displace fertile uranium and the fuel can no longer be as critical as the original fast reactor fuel recipe. UREX+1 and electrochemical can serve in either capacity; key impurities appear to be lanthanides and several transition metals.

Steven J. Piet; Nick R. Soelberg; Samuel E. Bays; Robert E. Cherry; Layne F. Pincock; Eric L. Shaber; Melissa C. Teague; Gregory M. Teske; Kurt G. Vedros; Candido Pereira; Denia Djokic

2010-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

COMMIX-PPC: A three-dimensional transient multicomponent computer program for analyzing performance of power plant condensers. Volume 1, Equations and numerics  

SciTech Connect

The COMMIX-PPC computer pregrain is an extended and improved version of earlier COMMIX codes and is specifically designed for evaluating the thermal performance of power plant condensers. The COMMIX codes are general-purpose computer programs for the analysis of fluid flow and heat transfer in complex Industrial systems. In COMMIX-PPC, two major features have been added to previously published COMMIX codes. One feature is the incorporation of one-dimensional equations of conservation of mass, momentum, and energy on the tube stile and the proper accounting for the thermal interaction between shell and tube side through the porous-medium approach. The other added feature is the extension of the three-dimensional conservation equations for shell-side flow to treat the flow of a multicomponent medium. COMMIX-PPC is designed to perform steady-state and transient. Three-dimensional analysis of fluid flow with heat transfer tn a power plant condenser. However, the code is designed in a generalized fashion so that, with some modification, it can be used to analyze processes in any heat exchanger or other single-phase engineering applications. Volume I (Equations and Numerics) of this report describes in detail the basic equations, formulation, solution procedures, and models for a phenomena. Volume II (User`s Guide and Manual) contains the input instruction, flow charts, sample problems, and descriptions of available options and boundary conditions.

Chien, T.H.; Domanus, H.M.; Sha, W.T.

1993-02-01T23:59:59.000Z

282

Lattice Boltzmann modeling of microchannel flow in slip flow regime  

Science Conference Proceedings (OSTI)

We present the lattice Boltzmann equation (LBE) with multiple relaxation times (MRT) to simulate pressure-driven gaseous flow in a long microchannel. We obtain analytic solutions of the MRT-LBE with various boundary conditions for the incompressible ... Keywords: Gas flow through microchannel, Lattice Boltzmann equation with multiple relaxation times, Slip flow

Frederik Verhaeghe; Li-Shi Luo; Bart Blanpain

2009-01-01T23:59:59.000Z

283

flow_loop.indd  

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

FLOW ASSURANCE TEST LOOP FLOW ASSURANCE TEST LOOP Objective O ver a decade ago, RMOTC began cooperatively building a full-scale facility to test new fl ow assurance technology, mainly in the areas of hydrates and paraffi ns. Today, RMOTC's test facility consists of fi ve individual loop sections, including chilling and heated pipe-in-pipe water sections, bare lines, and a mixing section. The facility was designed to represent typical deepwater production systems in order to simulate full-scale tests and apply the results to fl ow assurance fi eld applications and technology. The current facility design consists of a 6" x 3,600 maximum allowable operating pressure test pipeline in fi ve separate loops. The test loops begin and ter- minate at a central location just north

284

Modeling Turbulent Flow  

National Nuclear Security Administration (NNSA)

Turbulent Turbulent Flow with Implicit LES L.G. Margolin 1 Proceedings of the Joint Russian-American Five Laboratory Conference on Computational Mathematics/Physics 19-23 June, 2005 Vienna, Austria 1 Applied Physics Division, Los Alamos National Laboratory, Los Alamos, NM 87545, len@lanl.gov 1 Abstract Implicit large eddy simulation (ILES) is a methodology for modeling high Reynolds' num- ber flows that combines computational efficiency and ease of implementation with predictive calculations and flexible application. Although ILES has been used for more than fifteen years, it is only recently that significant effort has gone into providing a physical rationale that speaks to its capabilities and its limitations. In this talk, we will present new theoret- ical results aimed toward building a justification and discuss some remaining gaps in our understanding and our practical

285

TEP process flow diagram  

SciTech Connect

This presentation describes the development of the proposed Process Flow Diagram (PFD) for the Tokamak Exhaust Processing System (TEP) of ITER. A brief review of design efforts leading up to the PFD is followed by a description of the hydrogen-like, air-like, and waterlike processes. Two new design values are described; the mostcommon and most-demanding design values. The proposed PFD is shown to meet specifications under the most-common and mostdemanding design values.

Wilms, R Scott [Los Alamos National Laboratory; Carlson, Bryan [Los Alamos National Laboratory; Coons, James [Los Alamos National Laboratory; Kubic, William [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

286

Vanadium Redox Flow Batteries  

Science Conference Proceedings (OSTI)

The vanadium redox flow battery, sometimes abbreviated as VRB, is an energy storage technology with significant potential for application in a wide range of contexts. Vanadium redox batteries have already been used in a number of demonstrations in small-scale utility-scale applications, and it is believed that the technology is close to being viable for more widespread use. This report examines the vanadium redox technology, including technical performance and cost issues that drive its application today...

2007-03-30T23:59:59.000Z

287

Convective heat flow probe  

DOE Patents (OSTI)

A convective heat flow probe device is provided which measures heat flow and fluid flow magnitude in the formation surrounding a borehole. The probe comprises an elongate housing adapted to be lowered down into the borehole; a plurality of heaters extending along the probe for heating the formation surrounding the borehole; a plurality of temperature sensors arranged around the periphery of the probe for measuring the temperature of the surrounding formation after heating thereof by the heater elements. The temperature sensors and heater elements are mounted in a plurality of separate heater pads which are supported by the housing and which are adapted to be radially expanded into firm engagement with the walls of the borehole. The heat supplied by the heater elements and the temperatures measured by the temperature sensors are monitored and used in providing the desired measurements. The outer peripheral surfaces of the heater pads are configured as segments of a cylinder and form a full cylinder when taken together. A plurality of temperature sensors are located on each pad so as to extend along the length and across the width thereof, with a heating element being located in each pad beneath the temperature sensors. An expansion mechanism driven by a clamping motor provides expansion and retraction of the heater pads and expandable packet-type seals are provided along the probe above and below the heater pads.

Dunn, J.C.; Hardee, H.C.; Striker, R.P.

1984-01-09T23:59:59.000Z

288

Coal flow aids reduce coke plant operating costs and improve production rates  

Science Conference Proceedings (OSTI)

Chemical coal flow aids can provide many benefits to coke plants, including improved production rates, reduced maintenance and lower cleaning costs. This article discusses the mechanisms by which coal flow aids function and analyzes several successful case histories. 2 refs., 10 figs., 1 tab.

Bedard, R.A.; Bradacs, D.J.; Kluck, R.W.; Roe, D.C.; Ventresca, B.P.

2005-06-01T23:59:59.000Z

289

Momentum Balance of Gravity Flows  

Science Conference Proceedings (OSTI)

A unified scale analysis of the momentum balance of downslope gravity flows is developed to organize previous theories for the case of negligible ambient flow and fixed temperature deficit scale. The values of several nondimensional parameters ...

L. Mahrt

1982-12-01T23:59:59.000Z

290

HYDROLYZED WOOD SLURRY FLOW MODELING  

E-Print Network (OSTI)

LBL-10090 UC-61 HYDROLYZED WOOD SLURRY FLOW MODELING JimLBL-10090 HYDROLYZED WOOD SLURRY FLOW MODELING Jim Wrathallconversion of hydrolyzed wood slurry to fuel oil, Based on

Wrathall, Jim

2012-01-01T23:59:59.000Z

291

Katabatic Wind in Opposing Flow  

Science Conference Proceedings (OSTI)

This paper presents a one-dimensional model of katabatic winds in ambient flow and examines types of possible solutions. Results presented in dimensionless form indicate that 1) cooling along a slope with upslope ambient flow can lead to tranquil ...

David R. Fitzjarrald

1984-04-01T23:59:59.000Z

292

Research on the Flow Pattern of Bubble Plume in an Aeration Tank  

Science Conference Proceedings (OSTI)

The flow pattern of gas?liquid two?phase flow in an aeration tank is of critical effect upon mass transfer by the convection. Bubble plume provides unsteadily fluctuating two?phase flow during the aeration. This paper the study on the unsteady structure of bubble plume is dealt with from experiment. The time?serial bubble plume images of different cases in tank have been analyzed. The RCC?PIV has been employed to calculate the velocities in those cases

W. H. Liu; T. Wan; W. Cheng; Yuichi Murai

2010-01-01T23:59:59.000Z

293

Motivation for a combined data flow-control flow processor  

Science Conference Proceedings (OSTI)

Data flow sequencing and the directed graph program representation provide two important tools for the development of computer architectures which can exploit problem parallelism. Classical (control flow) architecture deal efficiently with other problems such as serial sequences and data storage which are not handled so well by a data flow architecture. A hybrid which incorporates features of a data flow architecture along with features of a control flow architecture has the potential to become an effective parallel architecture for a wide class of problems. 10 references.

Oxley, D.W.

1981-01-01T23:59:59.000Z

294

Information flow analysis for javascript  

Science Conference Proceedings (OSTI)

Modern Web 2.0 pages combine scripts from several sources into a single client-side JavaScript program with almost no isolation. In order to prevent attacks from an untrusted third-party script or cross-site scripting, tracking provenance of data is ... Keywords: eval, hybrid program analysis, implicit flow, information flow control, unstructured control flow

Seth Just; Alan Cleary; Brandon Shirley; Christian Hammer

2011-10-01T23:59:59.000Z

295

A simplified sizing and mass model for axial flow turbines  

SciTech Connect

An axial flow turbine mass model has been developed and used to study axial flow turbines for space power systems. Hydrogen, helium-xenon, hydrogen-water vapor, air, and potassium vapor working fluids have been investigated to date. The impact of construction material, inlet temperature, rotational speed, pressure ratio, and power level on turbine mass and volume has been analyzed. This paper presents the turbine model description and results of parametric studies showing general design trends characteristic of any axial flow machine. Also, a comparison of axial flow turbine designs using helium-xenon mixtures and potassium vapor working fluids, which are used in Brayton and Rankine space power systems, respectively, is presented. 9 refs., 4 figs., 2 tabs.

Hudson, S.L.

1989-01-01T23:59:59.000Z

296

Single- and Two-Phase Diversion Cross-Flows Between Triangle Tight Lattice Rod Bundle Subchannels - Data on Flow Resistance and Interfacial Friction Coefficients for the Cross-Flow  

SciTech Connect

Single- and two-phase diversion cross-flows arising from the pressure difference between tight lattice subchannels are our concern in this study. In order to obtain a correlation of the diversion cross-flow, we conducted adiabatic experiments using a vertical multiple-channel with two subchannels simplifying the triangle tight lattice rod bundle for air-water flows at room temperature and atmospheric pressure. In the experiments, data were obtained on the axial variations in the pressure difference between the subchannels, the ratio of flow rate in one subchannel to the whole channel, the void fraction in each subchannel for slug-churn and annular flows in two-phase flow case. These data were analyzed by use of a lateral momentum equation based on a two-fluid model to determine both the cross-flow resistance coefficient between liquid phase and channel wall and the gas-liquid interfacial friction coefficient. The resulting coefficients have been correlated in a way similar to that developed for square lattice subchannel case by Kano et al. (2002); the cross-flow resistance coefficient data can be well correlated with a ratio of the lateral velocity due to the cross-flow to the axial one irrespective of single- and two-phase flows; the interfacial friction coefficient data were well correlated with a Reynolds number, which is based on the relative velocity between gas and liquid cross-flows as the characteristic velocity. (authors)

Tatsuya Higuchi; Akimaro Kawahara; Michio Sadatomi; Hiroyuki Kudo [Kumamoto University, 39-1, Kurokami 2-chome, Kumamoto 860-8555 (Japan)

2006-07-01T23:59:59.000Z

297

Demonstration of On-Line Elemental Coal Analyzer at TVA's Cumberland Fossil Plant  

Science Conference Proceedings (OSTI)

A Pulsed-Fast-Thermal-Neutron Analysis (PFTNA) on-line elemental coal analyzer, developed by Western Kentucky University's Applied Physics Institute, was installed at TVA's Cumberland Fossil Plant. The analyzer is designed to continuously determine the incoming coal's quality properties. The overall effort was coordinated by EPRI's Instrumentation and Control Center. The demonstration and evaluation of the coal analyzer at Cumberland identified and quantified the elements of ash formation along with mois...

2008-03-25T23:59:59.000Z

298

Cyclohexene Photo-oxidation over Vanadia Catalyst Analyzed by Time Resolved ATR-FT-IR Spectroscopy  

E-Print Network (OSTI)

oxidation over Vanadia Catalyst Analyzed by Time Resolvedperformance of vanadia catalysts [5] even though hydrationabsorption spectrum of these catalysts into the visible [

Mul, Guido

2008-01-01T23:59:59.000Z

299

NETL: News Release - New Project to Develop Web Tool for Analyzing...  

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

February 27, 2002 New Project to Develop Web Tool for Analyzing Air Quality in Ohio River Valley Internet Database Could Help States Make Scientifically Sound Decisions on...

300

Landmark Report Analyzes Current State of U.S. Offshore Wind...  

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

report assesses offshore wind technology challenges and potential risks and benefits. The National Renewable Energy Laboratory (NREL) recently published a new report that analyzes...

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While these samples are representative of the content of NLEBeta,
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301

Analyzing and simulating the variability of solar irradiance and solar PV powerplants  

E-Print Network (OSTI)

horizontal irradiance in California, Solar Energy, 84 (2010)UNIVERSITY OF CALIFORNIA, SAN DIEGO Analyzing and SimulatingChair University of California, San Diego iii EPIGRAPH We

Lave, Matthew S.

2012-01-01T23:59:59.000Z

302

Clustering of Aerosols in Atmospheric Turbulent Flow  

E-Print Network (OSTI)

A mechanism of formation of small-scale inhomogeneities in spatial distributions of aerosols and droplets associated with clustering instability in the atmospheric turbulent flow is discussed. The particle clustering is a consequence of a spontaneous breakdown of their homogeneous space distribution due to the clustering instability, and is caused by a combined effect of the particle inertia and a finite correlation time of the turbulent velocity field. In this paper a theoretical approach proposed in Phys. Rev. E 66, 036302 (2002) is further developed and applied to investigate the mechanisms of formation of small-scale aerosol inhomogeneities in the atmospheric turbulent flow. The theory of the particle clustering instability is extended to the case when the particle Stokes time is larger than the Kolmogorov time scale, but is much smaller than the correlation time at the integral scale of turbulence. We determined the criterion of the clustering instability for the Stokes number larger than 1. We discussed applications of the analyzed effects to the dynamics of aerosols and droplets in the atmospheric turbulent flow.

T. Elperin; N. Kleeorin; M. A. Liberman; V. L'vov; I. Rogachevskii

2007-02-15T23:59:59.000Z

303

UZ Flow Models and Submodels  

SciTech Connect

The purpose of this report is to document the unsaturated zone (UZ) flow models and submodels, as well as the flow fields that have been generated using the UZ flow model(s) of Yucca Mountain, Nevada. In this report, the term ''UZ model'' refers to the UZ flow model and the several submodels, which include tracer transport, temperature or ambient geothermal, pneumatic or gas flow, and geochemistry (chloride, calcite, and strontium) submodels. The term UZ flow model refers to the three-dimensional models used for calibration and simulation of UZ flow fields. This work was planned in the ''Technical Work Plan (TWP) for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Section 1.2.7). The table of included Features, Events, and Processes (FEPs), Table 6.2-11, is different from the list of included FEPs assigned to this report in the ''Technical Work Plan for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Table 2.1.5-1), as discussed in Section 6.2.6. The UZ model has revised, updated, and enhanced the previous UZ model (BSC 2001 [DIRS 158726]) by incorporating the repository design with new grids, recalibration of property sets, and more comprehensive validation effort. The flow fields describe fracture-fracture, matrix-matrix, and fracture-matrix liquid flow rates, and their spatial distributions as well as moisture conditions in the UZ system. These three-dimensional UZ flow fields are used directly by Total System Performance Assessment (TSPA). The model and submodels evaluate important hydrogeologic processes in the UZ as well as geochemistry and geothermal conditions. These provide the necessary framework to test hypotheses of flow and transport at different scales, and predict flow and transport behavior under a variety of climatic conditions. In addition, the limitations of the UZ model are discussed in Section 8.11.

Y. Wu

2004-11-01T23:59:59.000Z

304

Recommendations for Analyzing Accidents under the National Environmental Policy Act (July 2002)  

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

National National Environmental Policy Act RECOMMENDATIONS for ANALYZING ACCIDENTS under the NATIONAL ENVIRONMENTAL POLICY ACT N E P A July 2002 U.S. Department of Energy Environment, Safety and Health Office of NEPA Policy and Compliance Recommendations for Analyzing Accidents under NEPA Contents 1.0 Introduction ............................................................................................................................... 1 1.1 Definition............................................................................................................................ 1 1.2 Purpose.............................................................................................................................. 1 1.3 Sliding Scale ......................................................................................................................

305

© Copr. 1949-1998 Hewlett-Packard Co.On-Line Data Reduction for Nuclear Analyzers  

E-Print Network (OSTI)

Sniffing out minute amounts of radioactivity in our environment is just one of the talents of the versatile multichannel analyzer. Here are four multichannel analyzer systems †” two of them from new †” that include on-line computing devices capable of anything from straight number crunching to completely automating the analysis.

R. Cross; James A. Doub; John M. Stedman

1971-01-01T23:59:59.000Z

306

Bayesian mixtures of common factor analyzers: Model, variational inference, and applications  

Science Conference Proceedings (OSTI)

Recently, a representative approach, named mixtures of common factor analyzers (MCFA), was proposed for clustering high-dimensional observed data. Existing model-parameter estimation methods for this approach is based on the maximum likelihood criterion ... Keywords: Bayesian mixtures of common factor analyzers, Clustering, Dimension reduction, Variational inference

Xin Wei, Chunguang Li

2013-11-01T23:59:59.000Z

307

Fluid flow monitoring device  

DOE Patents (OSTI)

This invention consists of a flow meter and temperature measuring device comprising a tube with a body centered therein for restricting flow and a sleeve at the upper end of the tube to carry several channels formed longitudinally in the sleeve to the appropriate axial location where they penetrate the tube to allow pressure measurements and temperature measurements with thermocouples. The high pressure measurement is made using a channel penetrating the tube away from the body and the low pressure measurement is made at a location at the widest part of the body. An end plug seals the end of the device and holes at its upper end allow fluid to pass from the interior of the tube into a plenum. The channels are made by cutting grooves in the sleeve, the grooves widened at the surface of the sleeve and then a strip of sleeve material is welded to the grooves closing the channels. Preferably the sleeve is packed with powdered graphite before cutting the grooves and welding the strips.

McKay, M.D.; Sweeney, C.E.

1991-03-05T23:59:59.000Z

308

Ellipsoidal cell flow system  

SciTech Connect

The disclosure relates to a system incorporating an ellipsoidal flow chamber having light reflective walls for low level light detection in practicing cellular analysis. The system increases signal-to-noise ratio by a factor of ten over prior art systems. In operation, laser light passes through the primary focus of the ellipsoid. A controlled flow of cells simultaneously passes through this focus so that the laser light impinges on the cells and is modulated by the cells. The reflective walls of the ellipsoid reflect the cell-modulated light to the secondary focus of the ellipsoid. A tapered light guide at the secondary focus picks up a substantial portion of modulated reflective light and directs it onto a light detector to produce a signal. The signal is processed to obtain the intensity distribution of the modulated light and hence sought after characteristics of the cells. In addition, cells may be dyed so as to fluoresce in response to the laser light and their fluorescence may be processed as cell-modulated light above described. A light discriminating filter would be used to distinguish reflected modulated laser light from reflected fluorescent light.

Salzman, Gary C. (Los Alamos, NM); Mullaney, Paul F. (Los Alamos, NM)

1976-01-01T23:59:59.000Z

309

Radial flow heat exchanger  

DOE Patents (OSTI)

A radial flow heat exchanger (20) having a plurality of first passages (24) for transporting a first fluid (25) and a plurality of second passages (26) for transporting a second fluid (27). The first and second passages are arranged in stacked, alternating relationship, are separated from one another by relatively thin plates (30) and (32), and surround a central axis (22). The thickness of the first and second passages are selected so that the first and second fluids, respectively, are transported with laminar flow through the passages. To enhance thermal energy transfer between first and second passages, the latter are arranged so each first passage is in thermal communication with an associated second passage along substantially its entire length, and vice versa with respect to the second passages. The heat exchangers may be stacked to achieve a modular heat exchange assembly (300). Certain heat exchangers in the assembly may be designed slightly differently than other heat exchangers to address changes in fluid properties during transport through the heat exchanger, so as to enhance overall thermal effectiveness of the assembly.

Valenzuela, Javier (Hanover, NH)

2001-01-01T23:59:59.000Z

310

Monte Carlo simulation of ion trajectories in the modified PDX thermal charge exchange analyzer  

DOE Green Energy (OSTI)

An improved design for the present PDX thermal charge exchange analyzer (MACE) has been proposed by one of the authors, in which the five cylindrical electrostatic plates for mass separation are replaced by a single flat, electrostatic deflection plate. An existihg Monte Carlo code that simulated the passage of ions through the MACE analyzer was modified to examine the feasibility of this change. The resulting calculations were used to optimize detector positions and collimation requirements. The first analyzer to be placed on PDX will be of the old design, similar to the present PLT analyzer. However, if the design reported here is successful on the test stand, the future PDX analyzers will all be of the new, single electrostatic plate variety. A further advantage will be the ability to install as many as ten detectors instead of the current five, thus providing twice as many energy channels for each shot. Also, both mass species (H, D) can be measured concurrently, if desired.

Kaita, R.; Davis, S.L.; Medley, S.S.

1978-12-01T23:59:59.000Z

311

Effect of deposits on corrosion of materials exposed in the Coal-Fired Flow Facility  

DOE Green Energy (OSTI)

Candidate heat exchanger materials tested in the Low Mass Flow train at the Coal-Fired Flow Facility (CFFF) at Tullahoma, TN. were analyzed to evaluate their corrosion performance. Tube specimens obtained at each foot of the 14-ft-long Unbend tubes were analyzed for corrosion-scale morphologies, scale thicknesses, and internal penetration depths. Results developed on 1500- and 2000- h exposed specimens were correlated with exposure temperature. In addition, deposit materials collected at several locations in the CFFF were analyzed in detail to characterize the chemical and physical properties of the deposits and their influence on corrosion performance of tube materials.

Natesan, K.

1993-05-01T23:59:59.000Z

312

Flow equivalence of shifts of finite type via positive factorizations  

E-Print Network (OSTI)

Together with M. Boyle and D. Huang (2000), this paper gives an alternate development of the Huang classification of shifts of finite type up to flow equivalence, and provides additionalfunctorialinformation, used to analyze the action of the mapping class group of the mapping torus of a shift of finite type on the “isotopy futures” group, which is introduced here. For a shift of finite type ?A, this group is isomorphic to the Bowen-Franks group cok(I ?A). The action on the isotopy futures group of a subshift is the flow equivalence analogue of the dimension group representation.

Mike Boyle

2002-01-01T23:59:59.000Z

313

Magnetically insulated theory with both electron and ion flows  

SciTech Connect

Both the ion emission from anode surface and the electron emission from cathode surface may occur in the magnetically insulated transmission line (MITL) with a very high pulsed power and a very large current density. A model for the MITL with both electron and ion flow is developed. In this model, physical quantities (such as space-charge sheath thicknesses and flow currents) in the MITL are theoretically analyzed, and the specific expression for the voltage on the line by the terms of currents is derived. Furthermore, particle-in-cell simulations are carried out to verify the theoretical results.

Wang Huihui; Meng Lin; Liu Dagang; Liu Laqun; Yang Chao [School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 (China)

2012-10-15T23:59:59.000Z

314

Update of Columbia River flow and temperature data measured at Priest Rapids Dam and Vernita Bridge  

DOE Green Energy (OSTI)

Columbia River temperatures and flow rates are collected daily at Priest Rapids Dam and Vernita Bridge. These data are necessary for assessing trends or changes in river conditions downstream of Priest Rapids Dam. In order to analyze this data, Pacific Northwest Laboratory developed a computerized data base using existing US Geological Survey flow and temperature records at Priest Rapids Dam and Vernita Bridge. Daily-averaged temperature and daily flow information on the Columbia River just downstream of Priest Rapids Dam and upstream of river mile 380 were collected and stored in a data base. A newly developed computer model, COLSTAT (Columbia River Statistical Update), used the data base to statistically analyze temperature and flow conditions by computing the frequency of occurrence and duration of selected temperatures and flow rates for the Columbia River. Information regarding the data base is presented, as well as, a description of the COLSTAT model.

Whelan, G.; Newbill, C.A.

1983-09-01T23:59:59.000Z

315

Uranyl Nitrate Flow Loop  

Science Conference Proceedings (OSTI)

The objectives of the work discussed in this report were to: (1) develop a flow loop that would simulate the purified uranium-bearing aqueous stream exiting the solvent extraction process in a natural uranium conversion plant (NUCP); (2) develop a test plan that would simulate normal operation and disturbances that could be anticipated in an NUCP; (3) use the flow loop to test commercially available flowmeters for use as safeguards monitors; and (4) recommend a flowmeter for production-scale testing at an NUCP. There has been interest in safeguarding conversion plants because the intermediate products [uranium dioxide (UO{sub 2}), uranium tetrafluoride (UF{sub 4}), and uranium hexafluoride (UF{sub 6})] are all suitable uranium feedstocks for producing special nuclear materials. Furthermore, if safeguards are not applied virtually any nuclear weapons program can obtain these feedstocks without detection by the International Atomic Energy Agency (IAEA). Historically, IAEA had not implemented safeguards until the purified UF{sub 6} product was declared as feedstock for enrichment plants. H. A. Elayat et al. provide a basic definition of a safeguards system: 'The function of a safeguards system on a chemical conversion plant is in general terms to verify that no useful nuclear material is being diverted to use in a nuclear weapons program'. The IAEA now considers all highly purified uranium compounds as candidates for safeguarding. DOE is currently interested in 'developing instruments, tools, strategies, and methods that could be of use to the IAEA in the application of safeguards' for materials found in the front end of the nuclear fuel cycle-prior to the production of the uranium hexafluoride or oxides that have been the traditional starting point for IAEA safeguards. Several national laboratories, including Oak Ridge, Los Alamos, Lawrence Livermore, and Brookhaven, have been involved in developing tools or techniques for safeguarding conversion plants. This study was sponsored by the U.S. Department of Energy (DOE) NA-241, Office of Dismantlement and Transparency.

Ladd-Lively, Jennifer L [ORNL

2008-10-01T23:59:59.000Z

316

Instrumentation for Increased Power Flow  

Science Conference Proceedings (OSTI)

This report is the second Technical Update of the Instrumentation for Managing Increased Power Flow project, part of EPRI's Increased Power Flow (IPF) program. The project, initiated in 2006 and expected to continue for several years, studies the feasibility of new instrumentation to support increased power flow strategies. In 2007 the work focused on two primary developments: the Backscatter Sensor for the real-time measurement of transmission line temperature and current and the Emissivity Test Instrum...

2007-12-06T23:59:59.000Z

317

HYDROCARBON LIQUID FLOW CALIBRATION SERVICE ...  

Science Conference Proceedings (OSTI)

... and is the cross correlation coefficient ... a NIST Hydrocarbon Liquid Flow Calibration Facility ... FED2004-56790, 2004 Heat Transfer/Fluids Engineering ...

2012-05-21T23:59:59.000Z

318

Flow Batteries: A Historical Perspective  

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

Marvin Warshay *1976 Shunt Current Model, Paul Prokopius *1976 Interfaced an RFB with solar cells *1977 Electrode-Membrane-Flow Battery Testing *Largest polarization @ negative...

319

EPRI Coal-Flow Loop  

Science Conference Proceedings (OSTI)

This report is targeted at plant personnel responsible for coal-flow measurement and mill balancing that are using or are considering the use of online, in situ measurement technologies. Optimum combustion in a boiler requires careful control of coal and air flow to individual burners. Measuring in near real-time the mass flow rate of pneumatically conveyed pulverized coal in burner feed pipes is a critical element of such control. This report summarizes the findings for two online coal-flow instruments ...

2006-12-01T23:59:59.000Z

320

Analyze Data to Evaluate Greenhouse Gas Emissions Profile for Vehicles and  

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

Vehicles and Mobile Equipment Vehicles and Mobile Equipment Analyze Data to Evaluate Greenhouse Gas Emissions Profile for Vehicles and Mobile Equipment October 7, 2013 - 11:36am Addthis YOU ARE HERE Step 2 After a Federal agency has collected detailed information about its vehicle inventory, fuel consumption, usage, mission, and alternative fuel availability, it can analyze the data to determine the most cost-effective options for petroleum reduction and greenhouse gas (GHG) mitigation. Data can be analyzed at the agency, program, fleet (or site), or vehicle level for the following purposes: Determining the most important mobile emission sources Determining whether vehicles are performing and being utilized to minimize GHG emissions Identifying mission constraints. Next Step After analyzing data for evaluating an emissions profile, the next step in

Note: This page contains sample records for the topic "analyzes cash flow" 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

Locating an active fault zone in Coso geothermal field by analyzing seismic  

Open Energy Info (EERE)

Locating an active fault zone in Coso geothermal field by analyzing seismic Locating an active fault zone in Coso geothermal field by analyzing seismic guided waves from microearthquake data Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Locating an active fault zone in Coso geothermal field by analyzing seismic guided waves from microearthquake data Details Activities (1) Areas (1) Regions (0) Abstract: Active fault systems usually provide high-permeability channels for hydrothermal outflow in geothermal fields. Locating such fault systems is of a vital importance to plan geothermal production and injection drilling, since an active fault zone often acts as a fracture-extensive low-velocity wave guide to seismic waves. We have located an active fault zone in the Coso geothermal field, California, by identifying and analyzing

322

Survey and analyze the business conditions of the solar industry, June-July 1981. Task I  

DOE Green Energy (OSTI)

Progress is reported on the following tasks: surveying and analyzing the business conditions of the solar industry, administrative analysis of solar system product certification standards and codes, and solar industry advertising guidelines. (MHR)

Not Available

1981-01-01T23:59:59.000Z

323

A new simple ?OH neuron model as a biologically plausible principal component analyzer  

Science Conference Proceedings (OSTI)

A new approach to unsupervised learning in a single-layer neural network is discussed. An algorithm for unsupervised learning based upon the Hebbian learning rule is presented. A simple neuron model is analyzed. A dynamic neural model, which contains ...

M. V. Jankovic

2003-07-01T23:59:59.000Z

324

Formalizing and Analyzing the Train-to-Wayside Network System for CBTC  

Science Conference Proceedings (OSTI)

In the development of communication based train control (CBTC) system, while communicating with the control center, the train must be assigned accurately to the wayside network. In order to verify the rigor of this process, the specification is analyzed ...

Guo Xie; Xinhong Hei; Hiroshi Mochizuki; Sei Takahashi; Hideo Nakamura

2012-11-01T23:59:59.000Z

325

The Oceanic Remote Chemical/Optical Analyzer (ORCA)—An Autonomous Moored Profiler  

Science Conference Proceedings (OSTI)

An autonomous, moored profiler [the Oceanic Remote Chemical/Optical Analyzer (ORCA)] was developed to sense a variety of chemical and optical properties in the upper water column. It is presently used to monitor water quality parameters in South ...

John P. Dunne; Allan H. Devol; Steven Emerson

2002-10-01T23:59:59.000Z

326

SAM—a computer aided design tool for specifying and analyzing modular, heirarchical systems  

Science Conference Proceedings (OSTI)

This paper presents SAM, a computer aided design tool for specifying and analyzing modular, hierarchical systems. SAM is based on Discrete Event System Specification (DEVS) and it uses generic components for specifying coupling relationships among components. ...

Arturo I. Concepcion; Stephen J. Schon

1986-12-01T23:59:59.000Z

327

Analyzing resiliency of the smart grid communication architectures under cyber attack  

Science Conference Proceedings (OSTI)

Smart grids are susceptible to cyber-attack as a result of new communication, control and computation techniques employed in the grid. In this paper, we characterize and analyze the resiliency of smart grid communication architecture, specifically an ...

Anas AlMajali; Arun Viswanathan; Clifford Neuman

2012-08-01T23:59:59.000Z

328

A Continuous Fast-Response Dual-Tracer Analyzer for Halogenated Atmospheric Tracer Studies  

Science Conference Proceedings (OSTI)

An apparatus for the simultaneous measurement of two tracers, sulfur hexafluoride (SF6) and a perfluorocarbon compound, is introduced. The new instrument is a modification of a commercially available fast-response, continuous analyzer for single ...

James P. Rydock; Brian K. Lamb

1994-10-01T23:59:59.000Z

329

Analyzing Natural Gas Based Hydrogen Infrastructure - Optimizing Transitions from Distributed to Centralized H2 Production  

E-Print Network (OSTI)

integration team for the National Hydrogen Roadmap in 2002.in the H2A, a group of hydrogen analysts convened by theframework for analyzing hydrogen systems, and serves on the

Yang, Christopher; Ogden, Joan M

2005-01-01T23:59:59.000Z

330

Analyzing the Long-run Impact of the Regional Greenhouse Gas...  

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

Analyzing the Long-run Impact of the Regional Greenhouse Gas Initiative on Maryland Power Sectors Costs and CO2 Emissions Speaker(s): Yihsu Chen Date: June 14, 2007 - 12:00pm...

331

A Trajectory Approach to Analyzing the Ingredients Associated with Heavy Winter Storms in Central North Carolina  

Science Conference Proceedings (OSTI)

Winter storms, namely snowstorms and ice storms, are a major hazard and forecasting challenge across central North Carolina. This study employed a trajectory approach to analyze the ingredients (i.e., temperature, moisture, and lift) associated ...

Christopher M. Fuhrmann; Charles E. Konrad II

2013-06-01T23:59:59.000Z

332

A Technique for Analyzing Optimal Relationships among Multiple Sets of Data Fields. Part 1: The Method  

Science Conference Proceedings (OSTI)

A multiple-set canonical correlation analysis (MCCA), which can be used to study atmospheric motions by analyzing the relationships among more than two sets of data fields, is proposed. By using the product or squared product of correlation ...

Jeng-Ming Chen; C-P. Chang; Patrick A. Harr

1994-11-01T23:59:59.000Z

333

A New Volatility Tandem Differential Mobility Analyzer to Measure the Volatile Sulfuric Acid Aerosol Fraction  

Science Conference Proceedings (OSTI)

A volatility tandem differential mobility analyzer (VTDMA) was developed with the intention to measure the fraction of sulfuric acid in marine fine aerosols (Dp < 150 nm). This work focused on the design and calibration of an aerosol conditioner ...

D. A. Orsini; A. Wiedensohler; F. Stratmann; D. S. Covert

1999-06-01T23:59:59.000Z

334

A C Language-Based Modular System for Analyzing and Displaying Gridded Numerical Data  

Science Conference Proceedings (OSTI)

A system for analyzing and displaying gridded numerical data called Candis is described. The system is written in the C programming language, and is built on a standard way of representing such data. The analysis package is modular, hierarchical, ...

David J. Raymond

1988-08-01T23:59:59.000Z

335

A Chemiluminescent Analyzer for Stratospheric Measurements of the Ozone Concentration (FOZAN)  

Science Conference Proceedings (OSTI)

Within the framework of the Airborne Polar Experiment, a new ozone analyzer based on chemiluminescent technology has been developed for high-altitude measurements. The instrument was tested on board the M-55 Geophysica aircraft during some ...

V. Yushkov; A. Oulanovsky; N. Lechenuk; I. Roudakov; K. Arshinov; F. Tikhonov; L. Stefanutti; F. Ravegnani; U. Bonafé; T. Georgiadis

1999-10-01T23:59:59.000Z

336

Two-phase flow characteristics in multiple orifice valves  

SciTech Connect

This work presents an experimental investigation on the characteristics of two-phase flow through multiple orifice valve (MOV), including frictional pressure drop and void fraction. Experiments were carried out using an MOV with three different sets of discs with throat thickness-diameter ratios (s/d) of 1.41, 1.66 and 2.21. Tests were run with air and water flow rates ranging between 1.0 and 3.0 m{sup 3}/h, respectively. The two-phase flow patterns established for the experiment were bubbly and slug. Two-phase frictional multipliers, frictional pressure drop and void fraction were analyzed. The determined two-phase multipliers were compared against existing correlations for gas-liquid flows. None of the correlations tested proved capable of predicting the experimental results. The large discrepancy between predicted and measured values points at the role played by valve throat geometry and thickness-diameter ratio in the hydrodynamics of two-phase flow through MOVs. A modification to the constants in the two-phase multiplier equation used for pipe flow fitted the experimental data. A comparison between computed frictional pressure drop, calculated with the modified two-phase multiplier equation and measured pressure drop yielded better agreement, with less than 20% error. (author)

Alimonti, Claudio [Sapienza University of Rome, Department ICMA, Via Eudossiana 18, 00184 Roma (Italy); Falcone, Gioia; Bello, Oladele [The Harold Vance Department of Petroleum Engineering, Texas A and M University, 3116 TAMU, Richardson Building, College Station, TX 77843 (United States)

2010-11-15T23:59:59.000Z

337

Patterns in Flowing Sand: Understanding the Physics of Granular Flow  

E-Print Network (OSTI)

Dense granular flows are often unstable and form inhomogeneous structures. Although significant advances have been recently made in understanding simple flows, instabilities of such flows are often not understood. We present experimental and numerical results that show the formation of longitudinal stripes that arise from instability of the uniform flowing state of granular media on a rough inclined plane. The form of the stripes depends critically on the mean density of the flow with a robust form of stripes at high density that consists of fast sliding plug-like regions (stripes) on top of highly agitated boiling material - a configuration reminiscent of the Leidenfrost effect when a droplet of liquid lifted by its vapor is hovering above a hot surface.

Tamas Borzsonyi; Robert E. Ecke; Jim N. McElwaine

2009-10-01T23:59:59.000Z

338

Modeling and Analyzing the Implementation of Latency-Insensitive Protocols Using the Polychrony Framework  

Science Conference Proceedings (OSTI)

As Globally Asynchronous and Locally Synchronous (GALS) based System-on-chip (SoC) are gaining importance, a special case of GALS when the global clocking is preserved, but the interconnect delays of multiple clock cycles are to be tolerated has also ... Keywords: SIGNAL language, clock hierarchy, endochrony, isochrony, latency-insensitive protocols, synchronous data flow graph

Bin Xue; Sandeep K. Shukla

2009-08-01T23:59:59.000Z

339

Split flow gasifier  

DOE Patents (OSTI)

A-moving bed coal gasifier for the production of tar-free, low ammonia fuel gas is described. The gasifier employs a combustion zone in a free-aboard area above the moving bed to burn coal fines to provide hot combustion gases for pyrolyzing and gasifying coal particulates in the moving bed to form fuel gas as the hot gases move co-currently with the downwardly moving coal particulates. The fuel gas contains entrained tars and ammonia compounds which contact hot char and ash in the moving bed and are cracked so that the fuel gas removed from the gasifier at a midpoint off-take is essentially tar-free and of low ammonia content. Concurrently with this gasification reaction, steam and an oxidant are introduced into a region below the moving bed to flow countercurrently to the downwardly moving bed to contact and react with carbon remaining in the char to create additional fuel gas which is also extracted from the gasifier at the mid-point off-take.

Halow, J.S.

1991-12-31T23:59:59.000Z

340

Interactions between Gravity Waves and Planetary-Scale Flow Simulated by the GFDL “SKYHI” General Circulation Model  

Science Conference Proceedings (OSTI)

In order to study interactions between gravity waves and planetary flow in the middle atmosphere, a 3° latitude by 3.6° longitude version of the 40-level GFDL “SKYHI” general circulation model is analyzed using bihourly sampled output data.

S. Miyahara; Y. Hayashi; J. D. Mahlman

1986-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

Numerical analysis of vapor flow in a micro heat pipe  

E-Print Network (OSTI)

The vapor flow in a flat plate micro heat pipe with both uniform and linear heat flux boundary conditions has been numerically analyzed. For both types of boundary conditions, the Navier-Stokes equations with steady incompressible two-dimensional flow were solved using the SIMPLE method. The results indicate that the pressure, shear stress, and friction factor under linear heat flux boundary conditions are considerably smoother, and hence, more closely approximate the real situation. As the heat flux increases, the pressure drop increases, but the friction factor demonstrates only a slight change for different heat flux conditions. The size and shape of the micro heat pipe vapor space was shown to have a significant influence on the vapor flow behavior for micro heat pipes. When the vapor space area decreases, the pressure drop, shear stress, and friction factor all significantly increase.

Liu, Xiaoqin

1996-01-01T23:59:59.000Z

342

Event-plane flow analysis without nonflow effects  

SciTech Connect

The event-plane method, which is widely used to analyze anisotropic flow in nucleus-nucleus collisions, is known to be biased by nonflow effects, especially at high p{sub t}. Various methods (cumulants, Lee-Yang zeros) have been proposed to eliminate nonflow effects, but their implementation is tedious, which has limited their application so far. In this article, we show that the Lee-Yang-zeroes method can be recast in a form similar to the standard event-plane analysis. Nonflow correlations are strongly suppressed by using the information from the length of the flow vector, in addition to the event-plane angle. This opens the way to improved analyses of elliptic flow and azimuthally sensitive observables at the Relativistic Heavy Ion Collider and the Large Hadron Collider.

Bilandzic, Ante; Kolk, Naomi van der [Nikhef, Science Park 105, 1098 XG Amsterdam (Netherlands); Utrecht University, P. O. Box 80000, 3508 TA Utrecht (Netherlands); Ollitrault, Jean-Yves [Institut de Physique Theorique, CEA-Saclay, F-91191 Gif-sur-Yvette cedex (France); Snellings, Raimond [Utrecht University, P. O. Box 80000, 3508 TA Utrecht (Netherlands)

2011-01-15T23:59:59.000Z

343

Heat-flow mapping at the Geysers Geothermal Field  

SciTech Connect

Pertinent data were compiled for 187 temperature-gradient holes in the vicinity of The Geysers Geothermal field. Terrain-correction techniques were applied to most of the temperature-gradient data, and a temperature-gradient map was constructed. Cutting samples from 16, deep, production wells were analyzed for thermal conductivity. From these samples, the mean thermal conductivities were determined for serpentinized ultramafic rock, greenstone, and graywacke. Then, a heat flow map was made. The temperature-gradient and heat-flow maps show that The Geysers Geothermal field is part of a very large, northwesterly-trending, thermal anomaly; the commercially productive portion of the field may be 100 km/sup 2/ in area. The rate that heat energy flows through the surface by thermal conduction is estimated at 1.79 x 10/sup 9/MJ per year. The net heat energy loss from commercial production for 1983 is estimated at 180.14 x 10/sup 9/MJ.

Thomas, R.P.

1986-10-31T23:59:59.000Z

344

Performance and flow characteristics of MHD seawater thruster  

DOE Green Energy (OSTI)

The main goal of the research is to investigate the effects of strong magnetic fields on the electrical and flow fields inside MHD thrusters. The results of this study is important in the assessment of the feasibility of MHD seawater propulsion for the Navy. To accomplish this goal a three-dimensional fluid flow computer model has been developed and applied to study the concept of MHD seawater propulsion. The effects of strong magnetic fields on the current and electric fields inside the MHD thruster and their interaction with the flow fields, particularly those in the boundary layers, have been investigated. The results of the three-dimensional computations indicate that the velocity profiles are flatter over the sidewalls of the thruster walls in comparison to the velocity profiles over the electrode walls. These nonuniformities in the flow fields give rise to nonuniform distribution of the skin friction along the walls of the thrusters, where higher values are predicted over the sidewalls relative to those over the electrode walls. Also, a parametric study has been performed using the three-dimensional MHD flow model to analyze the performance of continuous electrode seawater thrusters under different operating parameters. The effects of these parameters on the fluid flow characteristics, and on the thruster efficiency have been investigated. Those parameters include the magnetic field (10--20 T), thruster diameter, surface roughness, flow velocity, and the electric load factor. The results show also that the thruster performance improves with the strength of the magnetic field and thruster diameter, and the efficiency decreases with the flow velocity and surface roughness.

Doss, E.D.

1990-01-01T23:59:59.000Z

345

On the subcooled critical flow model in RELAP5/MOD3  

SciTech Connect

An analysis of an anomaly in the subcooled critical flow model in the RELAP5/MOD3 computer code is presented. Specifically, the code produces a discontinuity in going from unchoked subcooled liquid flow (i.e., subsonic flow) to subcooled choked flow (i.e., sonic flow). The same anomaly has been reported elsewhere. The root cause for this anomaly has been analyzed, and it is found that the user-supplied junction loss coefficient and discharge coefficient play an important role in the occurrence of this anomaly. The analysis is verified by assessment against a test problem simulating single-phase liquid flow through a convergent nozzle with a fixed upstream pressure and a varying downstream pressure. A corrective measure to eliminate the discontinuity is suggested.

Yeung, W.S.; Shirkov, J. [Yankee Atomic Electric Co., Bolton, MA (United States)

1996-04-01T23:59:59.000Z

346

Analysis of Chinshan-1 power test data with the BNL plant analyzer  

Science Conference Proceedings (OSTI)

The Brookhaven National Laboratory (BNL) plant analyzer, also called the high-speed interactive plant analyzer (HIPA), was developed to reduce the time and cost associated with nuclear power plant transient simulation. The BNL analyzer proved to be quite accurate for the analysis of boiling water reactor (BWR) designs and compared well with the results of TRAC-B01, RAMONA-3B, and RELAP-5 calculations. Modification such as feedwater pump control system, SRV logics, input parameter, and form loss coefficient were made to HIPA's BWR/4 models to accommodate the BWR/4 plant-specific design features of Chinshan-1. This paper presents comparisons of HIPA prediction to Chinshan-1 data for two important power tests.

Geping Yu; Baushei Pei; Chin Pan (National Tsing Hua Univ., Hsinchu (Taiwan))

1991-01-01T23:59:59.000Z

347

Vector and tensor analyzing powers in deuteron-proton breakup at 130 MeV  

SciTech Connect

High-precision data for vector and tensor analyzing powers for the {sup 1}H(d-vector,pp)n reaction at a 130-MeV deuteron beam energy have been measured over a large part of the phase space. Theoretical predictions based on various approaches to describe the three nucleon (3N) system reproduce very well the vector analyzing power data and no three-nucleon force effect is observed for these observables. Tensor analyzing powers are also very well reproduced by calculations in almost the whole studied region, but locally certain discrepancies are observed. For A{sub xy} such discrepancies usually appear, or are enhanced, when model 3N forces, TM99 or Urbana, are included. Problems of all theoretical approaches with describing A{sub xx} and A{sub yy} are limited to very small kinematical regions, usually characterized by the lowest energy of the relative motion of the two protons.

Stephan, E.; Biegun, A.; Klos, B.; Micherdzinska, A.; Zipper, W. [Institute of Physics, University of Silesia, PL-40007 Katowice (Poland); Kistryn, St.; Sworst, R.; Bodek, K.; Ciepal, I.; Golak, J.; Skibinski, R.; Witala, H.; Wronska, A.; Zejma, J. [Institute of Physics, Jagiellonian University, PL-30059 Krakow (Poland); Deltuva, A. [Centro de Fisica Nuclear da Universidade de Lisboa, P-1649-003 Lisboa (Portugal); Epelbaum, E. [Institute fuer Theoretische Physik II, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany); Fonseca, A. C. [Centro de Fisica Nuclear, Universidade de Lisboa, P-1649-003 Lisboa (Portugal); Kalantar-Nayestanaki, N.; Kis, M.; Mahjour-Shafiei, M. [Kernfysisch Versneller Instituut, University of Groningen, NL-9747 AA Groningen (Netherlands)

2010-07-15T23:59:59.000Z

348

New Modeling Tool Analyzes Floating Platform Concepts for Offshore Wind Turbines (Fact Sheet)  

DOE Green Energy (OSTI)

Researchers at the National Renewable Energy Laboratory (NREL) developed a new complex modeling and analysis tool capable of analyzing floating platform concepts for offshore wind turbines. The new modeling tool combines the computational methodologies used to analyze land-based wind turbines with the comprehensive hydrodynamic computer programs developed for offshore oil and gas industries. This new coupled dynamic simulation tool will enable the development of cost-effective offshore technologies capable of harvesting the rich offshore wind resources at water depths that cannot be reached using the current technology.

Not Available

2011-02-01T23:59:59.000Z

349

Combustion Turbine/Combined-Cycle Operations and Maintenance Cost Analyzer, Version 8.61  

Science Conference Proceedings (OSTI)

The CTCC O&M Cost Analyzer is a spreadsheet software product that estimates operations and maintenance (O&M) costs for combustion turbine and combined-cycle plants for specific gas turbine models over the operating life of the asset The CTCC O&M Cost Analyzer software contains powerful capabilities to assist users in evaluating non-fuel O&M costs and in supporting a life-cycle cost evaluation perspective.  The software uses a "bottoms-up" approach for ...

2013-05-06T23:59:59.000Z

350

Incident-Energy Dependent Quenching of the Analyzing Power in Pre-Equilibrium Composite Particle Emission  

Science Conference Proceedings (OSTI)

The proton-induced pre-equilibrium process in the energy range of 100 to 160 MeV, which leads to emission of composite ejectiles such as {sup 3}He and {alpha}-particles, is discussed. New cross section and analyzing power measurements for the (p,{sup 3}He) reaction on {sup 93}Nb at an incident energy of 160 MeV are presented, and these are found to be in agreement with the prediction of a statistical multistep theoretical formulation. The observed quenching of the analyzing power is also reproduced well by the theory. The results are consistent with earlier work at lower incident energies and other nuclear species.

Cowley, A. A. [Physics Department, Stellenbosch University, Private Bag X1, Matieland 7602 (South Africa); iThemba LABS, PO Box 722, Somerset West 7129 (South Africa); Dimitrova, S. S. [Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 1784 Sofia (Bulgaria); Zyl, J. J. van [Physics Department, Stellenbosch University, Private Bag X1, Matieland 7602 (South Africa)

2011-10-28T23:59:59.000Z

351

An Evaluation of the Use of a Quantitative Image Analyzer to Determine Microhardness Values  

SciTech Connect

The use of quantitative image analyzer to determine microhardness values was investigated. Microhardness traverses were made across chemically polished, partially oxidized T-111 alloy specimens using both Vickers and Knoop indenters. Microhardness values were obtained from both area and diagonal readings using a Classimat image analyzer (Classimat is a registered trademark of E. Leitz, Inc., Rockliegh, N. J.). These values were then compared with those obtained by conventional optical measurements. The data obtained by the various methods are compared and the advantages and disadvantages such as accuracy, time requirements, versatility, and limitations of particular methods are discussed.

Teaney, P. E.; Selle, J. E.

1971-10-01T23:59:59.000Z

352

Effect of ocean temperature on southwestern U.S. climate analyzed  

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

December » December » Effect of ocean temperature on southwestern climate Effect of ocean temperature on southwestern U.S. climate analyzed Researchers concluded that only part of the recent temperature rise in the Southwest could be attributed to greenhouse gases. December 19, 2013 Image from National Oceanic and Atmospheric Administration's Environmental Visualization Laboratory depicts sea surface temperatures around Greenland from October 2010. Image from National Oceanic and Atmospheric Administration's Environmental Visualization Laboratory depicts sea surface temperatures around Greenland from October 2010. Assuming that the past is a good indicator of the future, the scientists conclude that there should be wetter times ahead. Researchers have analyzed the relationship between a natural phenomenon in

353

Turbine blade tip flow discouragers  

SciTech Connect

A turbine assembly comprises a plurality of rotating blade portions in a spaced relation with a stationery shroud. The rotating blade portions comprise a root section, a tip portion and an airfoil. The tip portion has a pressure side wall and a suction side wall. A number of flow discouragers are disposed on the blade tip portion. In one embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned generally parallel to the direction of rotation. In an alternative embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned at an angle in the range between about 0.degree. to about 60.degree. with respect to a reference axis aligned generally parallel to the direction of rotation. The flow discouragers increase the flow resistance and thus reduce the flow of hot gas flow leakage for a given pressure differential across the blade tip portion so as to improve overall turbine efficiency.

Bunker, Ronald Scott (Niskayuna, NY)

2000-01-01T23:59:59.000Z

354

Physics of two-phase flow: choked flow  

DOE Green Energy (OSTI)

It is shown that the basic equations governing the flow of a two-phase fluid, i.e., liquid and vapor, are natural extensions of those equations that describe single-phase flow. The exact form of the equations depends on the particular assumptions used to characterize the two-phase flow, i.e., the equations depend on the model chosen. In general the mathematical model is selected so as to retain as much of the physics of the phenomena as possible while at the same time permitting solutions to be obtained without undue complexity. The following quantities were computed for saturated water substance over the temperature range 100 to 250/sup 0/C and for saturated Refrigerant -114 over the range -20 to +70/sup 0/C: choking velocity, critical or choking flow density, and saturation properties. Tables of the results are given along with graphs of selected functions.

Maeder, P.F.; DiPippo, R.; Delor, M.; Dickinson, D.

1981-05-01T23:59:59.000Z

355

The transition from two phase bubble flow to slug flow  

E-Print Network (OSTI)

The process of transition from bubble to slug flow in a vertical pipe has been studied analytically and experimentally. An equation is presented which gives the agglomeration time as a function of void fraction, channel ...

Radovcich, Nick A.

1962-01-01T23:59:59.000Z

356

HYDROGEN ELECTROLYZER FLOW DISTRIBUTOR MODEL  

DOE Green Energy (OSTI)

The hybrid sulfur process (HyS) hydrogen electrolyzer consists of a proton exchange membrane (PEM) sandwiched between two porous graphite layers. An aqueous solution of sulfuric acid with dissolved SO{sub 2} gas flows parallel to the PEM through the porous graphite layer on the anode side of the electrolyzer. A flow distributor, consisting of a number of parallel channels acting as headers, promotes uniform flow of the anolyte fluid through the porous graphite layer. A numerical model of the hydraulic behavior of the flow distributor is herein described. This model was developed to be a tool to aid the design of flow distributors. The primary design objective is to minimize spatial variations in the flow through the porous graphite layer. The hydraulic data from electrolyzer tests consists of overall flowrate and pressure drop. Internal pressure and flow distributions are not measured, but these details are provided by the model. The model has been benchmarked against data from tests of the current electrolyzer. The model reasonably predicts the viscosity effect of changing the fluid from water to an aqueous solution of 30 % sulfuric acid. The permeability of the graphite layer was the independent variable used to fit the model to the test data, and the required permeability for a good fit is within the range literature values for carbon paper. The model predicts that reducing the number of parallel channels by 50 % will substantially improve the uniformity of the flow in the porous graphite layer, while maintaining an acceptable pressure drop across the electrolyzer. When the size of the electrolyzer is doubled from 2.75 inches square to 5.5 inches square, the same number of channels as in the current design will be adequate, but it is advisable to increase the channel cross-sectional flow area. This is due to the increased length of the channels.

Shadday, M

2006-09-28T23:59:59.000Z

357

Proper planning improves flow drilling  

Science Conference Proceedings (OSTI)

Underbalanced operations reduce formation damage, especially in horizontal wells where zones are exposed to mud for longer time periods. Benefits, risks, well control concerns, equipment and issues associated with these operations are addressed in this paper. Flow drilling raises many concerns, but little has been published on horizontal well control and flow drilling operations. This article covers planning considerations for flow drilling, but does not address horizontal ''overbalanced'' drilling because considerations and equipment are the same as in vertical overbalanced drilling and many references address that subject. The difference in well control between vertical and horizontal overbalanced drilling is fluid influx behavior and how that behavior affects kill operations.

Collins, G.J. (Marathon Oil Co., Houston, TX (United States))

1994-10-01T23:59:59.000Z

358

Using Misbehavior to Analyze Strategic versus Aggregate Energy Minimization in Wireless  

E-Print Network (OSTI)

their transmission powers to minimize the aggregate energy expenditure. Our analysis of these models yields insightsUsing Misbehavior to Analyze Strategic versus Aggregate Energy Minimization in Wireless Sensor of the prob- lem of energy misbehavior and develop an analytical frame- work for quantifying its impact

Wei, Shuangqing

359

Analyzing the influence of overconfident investors on financial markets through agent-based model  

Science Conference Proceedings (OSTI)

In this research, we employ Agent-Based Model to analyze how asset prices are affected by investors' Behavior. This analysis places focus on the influence of overconfident investors on financial market. As a result of intensive analysis, we find that ... Keywords: agent based-model, asset pricing, behavioral economics, overconfidence

Hiroshi Takahashi; Takao Terano

2007-12-01T23:59:59.000Z

360

The geography of taste: analyzing cell-phone mobility and social events  

Science Conference Proceedings (OSTI)

This paper deals with the analysis of crowd mobility during special events. We analyze nearly 1 million cell-phone traces and associate their destinations with social events. We show that the origins of people attending an event are strongly correlated ...

Francesco Calabrese; Francisco C. Pereira; Giusy Di Lorenzo; Liang Liu; Carlo Ratti

2010-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

Analyzing Combined Impacts of Parameter Variations and BTI in Nano-scale Logical Gates  

E-Print Network (OSTI)

Analyzing Combined Impacts of Parameter Variations and BTI in Nano-scale Logical Gates Seyab Khan conclusions. 2 Background and Analysis Framework Fig. 1(a) shows the threshold voltage increment (Vth) due variation, delay model, and presents the analysis framework. First MEDIAN Workshop 2012 7 #12;2 Seyab Khan

Hamdioui, Said

362

A Study on Analyzing the Channel Characteristics of Low-Voltage Powerline under Coal Mine  

Science Conference Proceedings (OSTI)

This paper analyzes the special environment of underground coal mine, and points out that the existing underground communication is poor. It is very necessary to use suitable means to communicate under coal mine. Because of the special environment, there ... Keywords: PLC, channel, model, simulation

Deming Nie; Weiguo Liu; Shaoliang Wei

2008-12-01T23:59:59.000Z

363

Abstract--This paper describes experimental results aiming at analyzing lithium-ion batteries performances  

E-Print Network (OSTI)

Abstract--This paper describes experimental results aiming at analyzing lithium-ion batteries (SOH) of cells. Index Terms--Lithium-ion batteries, Aging, EIS, State Of Charge, State Of Health, Fuzzy Logic System. I. INTRODUCTION Lithium ion secondary batteries are now being used in wide applications

Paris-Sud XI, Université de

364

Facetnet: a framework for analyzing communities and their evolutions in dynamic networks  

Science Conference Proceedings (OSTI)

We discover communities from social network data, and analyze the community evolution. These communities are inherent characteristics of human interaction in online social networks, as well as paper citation networks. Also, communities may evolve over ... Keywords: community, community net, evolution, evolution net, non-negative matrix factorization, soft membership

Yu-Ru Lin; Yun Chi; Shenghuo Zhu; Hari Sundaram; Belle L. Tseng

2008-04-01T23:59:59.000Z

365

Measurement of tensor analyzing powers in elastic electron deuteron scattering with BLAST  

E-Print Network (OSTI)

This work reports a precision measurement of deuteron tensor analyzing powers T20 and T21 at the MIT-Bates Linear Accelerator Center. Data were collected simultaneously over a momentum transfer range of 2:15 to 4:5 fm¡1 ...

Zhang, Chi, Ph. D. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z

366

Face and body gesture recognition for a vision-based multimodal analyzer  

Science Conference Proceedings (OSTI)

For the computer to interact intelligently with human users, computers should be able to recognize emotions, by analyzing the human's affective state, physiology and behavior. In this paper, we present a survey of research conducted on face and body ... Keywords: affective HCI, facial expression, gesture, multimodal interface, recognition

Hatice Gunes; Massimo Piccardi; Tony Jan

2004-06-01T23:59:59.000Z

367

Analyzing water supply in future energy systems using the TIMES Integrated Assessment Model (TIAM-FR)  

E-Print Network (OSTI)

Analyzing water supply in future energy systems using the TIMES Integrated Assessment Model (TIAM is required to maintain water supplies while water is essential to produce energy. However, the models and energy generally dealt with them separately, the two resources are highly interconnected. Energy

368

Time-of-flight SIMS/MSRI reflectron mass analyzer and method  

DOE Patents (OSTI)

A method and apparatus for analyzing the surface characteristics of a sample by Secondary Ion Mass Spectroscopy (SIMS) and Mass Spectroscopy of Recoiled Ions (MSFU) is provided. The method includes detecting back scattered primary ions, low energy ejected species, and high energy ejected species by ion beam surface analysis techniques comprising positioning a ToF SIMS/MSRI mass analyzer at a predetermined angle {theta}, where {theta} is the angle between the horizontal axis of the mass analyzer and the unreflected primary ion beam line, and applying a specific voltage to the back ring of the analyzer. Preferably, {theta} is less than or equal to about 120{degree} and, more preferably, equal to 74{degree}. For positive ion analysis, the extractor, lens, and tint ring of the reflection are set at negative high voltages ({minus}Hv). The back ring of the reflection is set at greater than about +700V for MSRI measurements and between the range of about +15V and about +50V for SIMS measurements. The method further comprises inverting the polarity of the potentials applied to the extractor, lens, front ring, and back ring to obtain negative ion SIMS and/or MSRI data.

Smentkowski, Vincent S.; Gruen, Dieter M.; Krauss, Alan R.; Schultz, Albert J.; Holecek, John C.

1997-12-01T23:59:59.000Z

369

Analyzing the validity of passive investment strategies employing fundamental indices through agent-based simulation  

Science Conference Proceedings (OSTI)

This research analyzes the influence of indices which are employed in the asset management business on financial markets through agent-based simulation. In this analysis, we focus on a fundamental index, which has been proposed as a new benchmark for ... Keywords: agent based-model, behavioral finance, financial engineering, fundamental indexation, passive investment strategy

Hiroshi Takahashi; Satoru Takahashi; Takao Terano

2011-06-01T23:59:59.000Z

370

Time-of-flight SIMS/MSRI reflectron mass analyzer and method  

DOE Patents (OSTI)

A method and apparatus for analyzing the surface characteristics of a sample by Secondary Ion Mass Spectroscopy (SIMS) and Mass Spectroscopy of Recoiled Ions (MSRI) is provided. The method includes detecting back scattered primary ions, low energy ejected species, and high energy ejected species by ion beam surface analysis techniques comprising positioning a ToF SIMS/MSRI mass analyzer at a predetermined angle .theta., where .theta. is the angle between the horizontal axis of the mass analyzer and the undeflected primary ion beam line, and applying a specific voltage to the back ring of the analyzer. Preferably, .theta. is less than or equal to about 120.degree. and, more preferably, equal to 74.degree.. For positive ion analysis, the extractor, lens, and front ring of the reflectron are set at negative high voltages (-HV). The back ring of the reflectron is set at greater than about +700V for MSRI measurements and between the range of about +15 V and about +50V for SIMS measurements. The method further comprises inverting the polarity of the potentials applied to the extractor, lens, front ring, and back ring to obtain negative ion SIMS and/or MSRI data.

Smentkowski, Vincent S. (Clifton Park, NY); Gruen, Dieter M. (Downers Grove, IL); Krauss, Alan R. (Naperville, IL); Schultz, J. Albert (Houston, TX); Holecek, John C. (Colorado Springs, CO)

1999-12-28T23:59:59.000Z

371

Oscillating HBT radii and the time evolution of the source - sqrt(s_NN) = 200 GeV Au+Au data analyzed with azimuthally sensitive Buda-Lund hydro model  

E-Print Network (OSTI)

Identified particle spectra of pions, kaons and (anti)protons, and elliptic flow and azimuthal dependence of Bose-Einstein or HBT correlations of identified pions in sqrt(s_NN) = 200 GeV Au+Au collisions is analyzed simultaneously using an ellipsoidally symmetric generalization of the Buda-Lund hydrodynamical model. The transverse flow is found to be faster in the reaction plane than out of plane, which results in a reaction zone that gets slightly more elongated in-plane than out of plane.

A. Ster; M. Csanad; T. Csorgo; B. Lorstad; B. Tomasik

2011-04-06T23:59:59.000Z

372

Oscillating HBT radii and the time evolution of the source - sqrt(s_NN) = 200 GeV Au+Au data analyzed with azimuthally sensitive Buda-Lund hydro model  

E-Print Network (OSTI)

Identified particle spectra of pions, kaons and (anti)protons, and elliptic flow and azimuthal dependence of Bose-Einstein or HBT correlations of identified pions in sqrt(s_NN) = 200 GeV Au+Au collisions is analyzed simultaneously using an ellipsoidally symmetric generalization of the Buda-Lund hydrodynamical model. The transverse flow is found to be faster in the reaction plane than out of plane, which results in a reaction zone that gets slightly more elongated in-plane than out of plane.

Ster, A; Csorgo, T; Lorstad, B; Tomasik, B

2011-01-01T23:59:59.000Z

373

Hash Tables for Efficient Flow Monitoring: Vulnerabilities and Countermeasures  

E-Print Network (OSTI)

Aggregation modules within flow-based network monitoring tools make use of fast lookup methods to be able to quickly assign received packets to their corresponding flows. In software-based aggregators, hash tables are usually used for this task, as these offer constant lookup times under optimal conditions. The hash functions used for mapping flow keys to hash values need to be chosen carefully to ensure optimal utilization of the hash table. If attackers would be able to create collisions, the hash table degenerates to linked lists with worstcase lookup times of O(n) and greatly reduces the performance of the aggregation modules. Thus, independent of the available computational power of the monitor, an attacker would easily be able to overload the system. In this report, we analyze the aggregation modules of the software-based flow meters Vermont and nProbe. We evaluate the resilience strength of used hash functions by theoretical analysis and confirm the results by performing real attacks. These attacks show how easily flow monitors can be overloaded if the hash algorithm has not been chosen carefully. Based on our observations, we finally present a hash function which we believe has none of the weaknesses we have discovered.

David Eckhoff; Tobias Limmer; Falko Dressler

2009-01-01T23:59:59.000Z

374

Definition: Flow Test | Open Energy Information  

Open Energy Info (EERE)

Flow Test Jump to: navigation, search Dictionary.png Flow Test Flow tests are typically conducted shortly after a well has been drilled to test its productivity. The well is opened...

375

Transitions between Baroclinic Flow Regimes  

Science Conference Proceedings (OSTI)

we use truncated spectral Eady models with two Ekman layers of different strength to investigate the baroclinic flow transitions observed in annulus experiments. Our analysis is both analytical and numerical As the dissipation parameter is varied ...

H-Y. Weng; A. Barcilon; J. Magnan

1986-08-01T23:59:59.000Z

376

Coal flows | OpenEI  

Open Energy Info (EERE)

Coal flows Coal flows Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 142, and contains only the reference case. The dataset uses million short tons. The data is broken down into steam coal exports to Europe, Asia and America. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO Coal flows countries EIA exporting importing Data application/vnd.ms-excel icon AEO2011: World Steam Coal Flows By Importing Regions and Exporting Countries- Reference Case (xls, 103.7 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035 License

377

Essays on international capital flows  

E-Print Network (OSTI)

This dissertation consists of three chapters on international capital flows. Chapter 1 emphasizes the importance of innovations in the investment opportunity set, captured by changes in expected asset returns, as an important ...

Brandão, Tatiana Glindmeier Didier

2008-01-01T23:59:59.000Z

378

Lattice splitting under intermittent flows  

E-Print Network (OSTI)

We study the splitting of regular square lattices subject to stochastic intermittent flows. By extensive Monte Carlo simulations we reveal how the time span until the occurence of a splitting depends on various flow patterns imposed on the lattices. Increasing the flow fluctuation frequencies shortens this time span which reaches a minimum before rising again due to inertia effects incorporated in the model. The size of the largest connected component after the splitting is rather independent of the flow fluctuations but sligthly decreases with the link capacities. Our results are relevant for assessing the robustness of real-life systems, such as electric power grids with a large share of renewable energy sources including wind turbines and photovoltaic systems.

Schläpfer, Markus

2010-01-01T23:59:59.000Z

379

Miniaturized flow injection analysis system  

DOE Patents (OSTI)

A chemical analysis technique known as flow injection analysis, wherein small quantities of chemical reagents and sample are intermixed and reacted within a capillary flow system and the reaction products are detected optically, electrochemically, or by other means. A highly miniaturized version of a flow injection analysis system has been fabricated utilizing microfabrication techniques common to the microelectronics industry. The microflow system uses flow capillaries formed by etching microchannels in a silicon or glass wafer followed by bonding to another wafer, commercially available microvalves bonded directly to the microflow channels, and an optical absorption detector cell formed near the capillary outlet, with light being both delivered and collected with fiber optics. The microflow system is designed mainly for analysis of liquids and currently measures 38.times.25.times.3 mm, but can be designed for gas analysis and be substantially smaller in construction.

Folta, James A. (Livermore, CA)

1997-01-01T23:59:59.000Z

380

Miniaturized flow injection analysis system  

DOE Patents (OSTI)

A chemical analysis technique known as flow injection analysis is described, wherein small quantities of chemical reagents and sample are intermixed and reacted within a capillary flow system and the reaction products are detected optically, electrochemically, or by other means. A highly miniaturized version of a flow injection analysis system has been fabricated utilizing microfabrication techniques common to the microelectronics industry. The microflow system uses flow capillaries formed by etching microchannels in a silicon or glass wafer followed by bonding to another wafer, commercially available microvalves bonded directly to the microflow channels, and an optical absorption detector cell formed near the capillary outlet, with light being both delivered and collected with fiber optics. The microflow system is designed mainly for analysis of liquids and currently measures 38{times}25{times}3 mm, but can be designed for gas analysis and be substantially smaller in construction. 9 figs.

Folta, J.A.

1997-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

Flow Acceleration and Mountain Drag*  

Science Conference Proceedings (OSTI)

Dynamic explanations of mountain drag usually invoke viscous effects and/or wave momentum flux by either Rossby or internal gravity waves. This paper explores an alternative mechanism in terms of the unsteadiness of the incident flow. The ...

Peter R. Bannon

1985-12-01T23:59:59.000Z

382

Studies of Flows in Plasmas  

SciTech Connect

Note a pdf document "DOE-flow-final-report' should be attached. If it somehow is not please notify Walter Gekelman (gekelman@physics.ucla.edu) who will e mail it directly

Gekelman, Walter; Morales, George; Maggs, James

2009-03-07T23:59:59.000Z

383

Longitudinal dispersion in vegetated flow  

E-Print Network (OSTI)

Vegetation is ubiquitous in rivers, estuaries and wetlands, strongly influencing both water conveyance and mass transport. The plant canopy affects both mean and turbulent flow structure, and thus both advection and ...

Murphy, Enda

2006-01-01T23:59:59.000Z

384

Parabolic flows on complex manifolds  

E-Print Network (OSTI)

Chapter 2 Convergence of the parabolic complex Monge-Amp`ere65] Streets, J. , Tian, G. A parabolic flow of pluriclosedGill, M. Convergence of the parabolic complex Monge-Amp` ere

Gill, Matthew Franklin

2012-01-01T23:59:59.000Z

385

Multiscale modeling in granular flow  

E-Print Network (OSTI)

Granular materials are common in everyday experience, but have long-resisted a complete theoretical description. Here, we consider the regime of slow, dense granular flow, for which there is no general model, representing ...

Rycroft, Christopher Harley

2007-01-01T23:59:59.000Z

386

Subcooled flow boiling of fluorocarbons  

E-Print Network (OSTI)

A study was conducted of heat transfer and hydrodynamic behavior for subcooled flow boiling of Freon-113, one of a group of fluorocarbons suitable for use in cooling of high-power-density electronic components. Problems ...

Murphy, Richard Walter

1971-01-01T23:59:59.000Z

387

2007 Estimated International Energy Flows  

Science Conference Proceedings (OSTI)

An energy flow chart or 'atlas' for 136 countries has been constructed from data maintained by the International Energy Agency (IEA) and estimates of energy use patterns for the year 2007. Approximately 490 exajoules (460 quadrillion BTU) of primary energy are used in aggregate by these countries each year. While the basic structure of the energy system is consistent from country to country, patterns of resource use and consumption vary. Energy can be visualized as it flows from resources (i.e. coal, petroleum, natural gas) through transformations such as electricity generation to end uses (i.e. residential, commercial, industrial, transportation). These flow patterns are visualized in this atlas of 136 country-level energy flow charts.

Smith, C A; Belles, R D; Simon, A J

2011-03-10T23:59:59.000Z

388

Increased Power Flow Guidebook - 2012  

Science Conference Proceedings (OSTI)

The EPRI Increased Power Flow (IPF) Guidebook is a state-of-the-art and best- practices reference and guidebook on increasing the power flow capacities of existing overhead transmission lines, underground cables, power transformers, and substation equipment, without compromising safety and reliability. The Guidebook discusses power system concerns and limiting conditions to increasing capacity, reviews available technology options and methods, illustrates the alternatives with case ...

2012-12-31T23:59:59.000Z

389

Increased Power Flow Guidebook - 2013  

Science Conference Proceedings (OSTI)

The EPRI Increased Power Flow (IPF) Guidebook is a state-of-the-art and best- practices reference and guidebook on increasing the power flow capacities of existing overhead transmission lines, underground cables, power transformers, and substation equipment, without compromising safety and reliability. The Guidebook discusses power system concerns and limiting conditions to increasing capacity, reviews available technology options and methods, illustrates the alternatives with case ...

2013-11-18T23:59:59.000Z

390

Specification of Surface Roughness for Hydraulic Flow Test Plates  

Science Conference Proceedings (OSTI)

A study was performed to determine the surface roughness of the corrosion layer on aluminum clad booster fuel plates for the proposed Gas Test Loop (GTL) system to be incorporated into the Advanced Test Reactor (ATR) at the Idaho National Laboratory. A layer of boehmite (a crystalline, non-porous gamma-alumina hydrate) is typically pre-formed on the surface of the fuel cladding prior to exposure to reactor operation to prevent the uncontrolled buildup of corrosion product on the surface. A representative sample coupon autoclaved with the ATR driver fuel to produce the boehmite layer was analyzed using optical profilometry to determine the mean surface roughness, a parameter that can have significant impact on the coolant flow past the fuel plates. This information was used to specify the surface finish of mockup fuel plates for a hydraulic flow test model. The purpose of the flow test is to obtain loss coefficients describing the resistance of the coolant flow paths, which are necessary for accurate thermal hydraulic analyses of the water-cooled booster fuel assembly. It is recommended that the surface roughness of the boehmite layer on the fuel cladding be replicated for the flow test. While it is very important to know the order of magnitude of the surface roughness, this value does not need to be matched exactly. Maintaining a reasonable dimensional tolerance for the surface finish on each side of the 12 mockup fuel plates would ensure relative uniformity in the flow among the four coolant channels. Results obtained from thermal hydraulic analyses indicate that ±15% deviation from a surface finish (i.e., Ra) of 0.53 ìm would have a minimal effect on coolant temperature, coolant flow rate, and fuel temperature.

Donna Post Guillen; Timothy S. Yoder

2006-05-01T23:59:59.000Z

391

Non-Darcy flow analysis through tight sand formations  

SciTech Connect

An experimental setup was designed and constructed to measure the flow parameters through tight sand porous media. The two kinds of coreholders being used are Hassler-type and one in which the core sample is encapsulated in layers of epoxy resin and metal alloy. A gas flow measuring system was also developed for accurately measuring very low gas flow rates. Using Darcy's Law as a tool for analysis of the experimental data, we obtained that the gas permeability of the SFE No. 3 (Staged Field Experiment No. 3) core samples is a linear function of reciprocal mean pressure, and decreases with overburden pressure. The water permeability is also decreased with overburden pressure and is about 6 times smaller than gas permeability for the samples that we have tested. No significant hysteresis effect was obtained for dry gas permeability after several two phase flow runs. We successfully tested our encapsulated coreholder and measured gas flow rate through a tight sand core sample at different pressure drops. The results showed that the experimental runs using Hassler-type coreholder at overburden pressures higher than 2000 psig will probably give us the reliable experimental data. The experimental data obtained from the two different types of tight sandstones were analyzed using the Non-Darcy flow equation. The results showed the importance and reliability of the Non-Darcy formulation for describing the flow behavior under different overburden and system pressures. Non-Darcy's velocity for both gas and liquid phase were incorporated into an existing FORTRAN code for simulation of the tight gas reservoirs. The modified program was tested to compare the initial production data of SFE No. 2 well. Our simulation showed in the case of local turbulence and non-uniformities in the tight sand formation, the value of [beta] increases and Non-Darcy effect becomes important.

Wang, Ching-Huei.

1992-01-01T23:59:59.000Z

392

Acoustic concentration of particles in fluid flow  

DOE Patents (OSTI)

An apparatus for acoustic concentration of particles in a fluid flow includes a substantially acoustically transparent membrane and a vibration generator that define a fluid flow path therebetween. The fluid flow path is in fluid communication with a fluid source and a fluid outlet and the vibration generator is disposed adjacent the fluid flow path and is capable of producing an acoustic field in the fluid flow path. The acoustic field produces at least one pressure minima in the fluid flow path at a predetermined location within the fluid flow path and forces predetermined particles in the fluid flow path to the at least one pressure minima.

Ward, Michael D. (Los Alamos, NM); Kaduchak, Gregory (Los Alamos, NM)

2010-11-23T23:59:59.000Z

393

Public Perception of 13 Different Energy Topics analyzed in new Study |  

Open Energy Info (EERE)

Public Perception of 13 Different Energy Topics analyzed in new Study Public Perception of 13 Different Energy Topics analyzed in new Study Home > Groups > OpenEI Community Central Graham7781's picture Submitted by Graham7781(1992) Super contributor 27 December, 2012 - 14:27 consumer behavior Navigant OpenEI Pike Research Renewable Energy Report Pike Research, part of Navigant, recently released a White Paper that takes an in-depth view at public perception of 13 energy topics. The study uses a 1,000 person sample to show favorability and unfavorability energy topics such as transportation, renewable technology, nuclear, clean coal, and smart grid topics. Some of the highlights of the study are as follows: * Solar Energy had the highest number of respondents holding both "favorable" and "strongly favorable" opinions of any technology.

394

Effect of ocean temperature on southwestern U.S. climate analyzed  

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

Effect of ocean temperature on southwestern climate Effect of ocean temperature on southwestern climate Effect of ocean temperature on southwestern U.S. climate analyzed Researchers concluded that only part of the recent temperature rise in the Southwest could be attributed to greenhouse gases. December 19, 2013 Image from National Oceanic and Atmospheric Administration's Environmental Visualization Laboratory depicts sea surface temperatures around Greenland from October 2010. Image from National Oceanic and Atmospheric Administration's Environmental Visualization Laboratory depicts sea surface temperatures around Greenland from October 2010. Assuming that the past is a good indicator of the future, the scientists conclude that there should be wetter times ahead. Researchers have analyzed the relationship between a natural phenomenon in

395

Aerodyne Develops an Aircraft-Deployable Precision Aerosol Analyzer | U.S.  

Office of Science (SC) Website

Aerodyne Develops an Aircraft-Deployable Precision Aerosol Aerodyne Develops an Aircraft-Deployable Precision Aerosol Analyzer Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) SBIR/STTR Home About Funding Opportunity Announcements (FOAs) Applicant and Awardee Resources Commercialization Assistance Other Resources Awards SBIR/STTR Highlights Reporting Fraud Contact Information Small Business Innovation Research and Small Business Technology Transfer U.S. Department of Energy SC-29/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-5707 F: (301) 903-5488 E: sbir-sttr@science.doe.gov More Information » January 2013 Aerodyne Develops an Aircraft-Deployable Precision Aerosol Analyzer Aerodyne Research Inc. develops an aerosol mass spectrometer (AMS) that fills a critical need for size-resolved, quantitative chemical composition

396

A methodology for analyzing precursors to earthquake-initiated and fire-initiated accident sequences  

SciTech Connect

This report covers work to develop a methodology for analyzing precursors to both earthquake-initiated and fire-initiated accidents at commercial nuclear power plants. Currently, the U.S. Nuclear Regulatory Commission sponsors a large ongoing project, the Accident Sequence Precursor project, to analyze the safety significance of other types of accident precursors, such as those arising from internally-initiated transients and pipe breaks, but earthquakes and fires are not within the current scope. The results of this project are that: (1) an overall step-by-step methodology has been developed for precursors to both fire-initiated and seismic-initiated potential accidents; (2) some stylized case-study examples are provided to demonstrate how the fully-developed methodology works in practice, and (3) a generic seismic-fragility date base for equipment is provided for use in seismic-precursors analyses. 44 refs., 23 figs., 16 tabs.

Budnitz, R.J.; Lambert, H.E.; Apostolakis, G. [and others] and others

1998-04-01T23:59:59.000Z

397

A new neutral particle analyzer diagnostic and its first commissioning on HL-2A  

Science Conference Proceedings (OSTI)

A new neutral particle analyzer diagnostic has been developed for HuanLiuqi-2A (commonly referred to as HL-2A), which can provide the neutral particle flux measurement along 11 separate sightlines, simultaneously, within a wider energy range (1-70 keV). It is an electrostatic type analyzer with a removable pinhole and special-shape condenser. The energy analysis can be flexibly achieved by controlling a preset stepwise high voltage on the condenser. It is compact and its field of view covers HL-2A cross section from -33 cm to 33 cm without 'cross-talk.' The energy spectra and ion temperature profile have been obtained during its commissioning.

Li, W.; Xia, Z. W.; Lu, J.; Yang, Q. W.; Ding, X. T. [Southwestern Institute of Physics, Chengdu 610041 (China)

2012-10-15T23:59:59.000Z

398

Epitaxial VN,,001... Grown and Analyzed In situ by XPS and UPS. II. Analysis of Ar  

E-Print Network (OSTI)

Epitaxial VN,,001... Grown and Analyzed In situ by XPS and UPS. II. Analysis of Ar¿ Sputter Etched-welded to a Mo substrate heater. In Situ Preparation: The epitaxial VN 001 layers were grown in a multichamber that has been shown Ref. 1 to produce sharp 1 1 RHEED patterns. The target, a 5-cm-diam water-cooled V disk

Gall, Daniel

399

A 4906 CHANNEL TWO-DIMENSIONAL ANALYZER FOR THE MTR VELOCITY SELECTOR  

SciTech Connect

The analyzer forms part of the Materials Testing Reactor Velocity Selector Experiment which measures energy change versus scattering angle for subthermal neutrons scattered off a target. It is similar to other time-of- flight lyzers except for certain unique features. Among these features are input and output buffer matrices, a randomly pulsed crystal time-base generator, and a direct 48transistor drive circuit for the 4096 channel magnetic core matrix. (auth)

Petree, F.L.

1961-12-22T23:59:59.000Z

400

VisIt: An End-User Tool for Visualizing and Analyzing Very Large Data  

SciTech Connect

VisIt is a popular open source tool for visualizing and analyzing data. It owes its success to its foci of increasing data understanding, large data support, and providing a robust and usable product, as well as its underlying design that fits today's supercomputing landscape. In this short paper, we describe the VisIt project and its accomplishments. The VisIt project's three focal points - understanding data, large data, and delivering a product - together form a powerful environment for analyzing data from HPC simulations. It is used in varied ways: it enables visualization scientists, computational code developers, and the physicists that run these codes to perform a broad range of data understanding activities, including debugging, making movies, and exploring data. The user interface portion of its design provides a powerful paradigm for analyzing data while the data processing portion of its design is well suited for big data. This in turn has led to many successes: in scaling up to high levels of concurrency and large data sizes, in providing a 'home' for large data algorithms, in understanding how to best use supercomputers, and, most importantly, in helping users understand their data. Further, despite significant upcoming changes in supercomputing architecture, VisIt's future appears bright, as it enjoys vibrant user and developer communities.

Childs, Hank [Lawrence Berkeley National Laboratory (LBNL); Brugger, Eric [Lawrence Livermore National Laboratory (LLNL); Whitlock, B. [Lawrence Livermore National Laboratory (LLNL); Meredith, Jeremy S [ORNL; Ahern, Sean [ORNL; Bonnell, Kathleen [Lawrence Livermore National Laboratory (LLNL); Miller, Mark [Lawrence Livermore National Laboratory (LLNL); Weber, G. [Lawrence Berkeley National Laboratory (LBNL); Harrison, Cyrus [Lawrence Livermore National Laboratory (LLNL); Pugmire, Dave [ORNL; Fogal, T. [University of Utah; Garth, Christoph [unknown; Sanderson, Allen [University of Utah; Bethel, E Wes [Lawrence Berkeley National Laboratory (LBNL); Durant, Marc [Tech-X Corporation; Camp, David [Lawrence Berkeley National Laboratory (LBNL); Favre, Jean M. [Swiss National Supercomputing Center; Ruebel, O [unknown; Navratil, Paul [Texas Advanced Computing Center; Wheeler, Matthew [Atomic Weapons Establishment; Selby, Paul [Atomic Weapons Establishment; Vivodtzev, Fabien [CEA, France

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

Accuracy of flow hoods in residential applications  

SciTech Connect

To assess whether houses can meet performance expectations, the new practice of residential commissioning will likely use flow hoods to measure supply and return grille airflows in HVAC systems. Depending on hood accuracy, these measurements can be used to determine if individual rooms receive adequate airflow for heating and cooling, to determine flow imbalances between different building spaces, to estimate total air handler flow and supply/return imbalances, and to assess duct air leakage. This paper discusses these flow hood applications and the accuracy requirements in each case. Laboratory tests of several residential flow hoods showed that these hoods can be inadequate to measure flows in residential systems. Potential errors are about 20% to 30% of measured flow, due to poor calibrations, sensitivity to grille flow non-uniformities, and flow changes from added flow resistance. Active flow hoods equipped with measurement devices that are insensitive to grille airflow patterns have an order of magnitude less error, and are more reliable and consistent in most cases. Our tests also show that current calibration procedures for flow hoods do not account for field application problems. As a result, a new standard for flow hood calibration needs to be developed, along with a new measurement standard to address field use of flow hoods. Lastly, field evaluation of a selection of flow hoods showed that it is possible to obtain reasonable results using some flow hoods if the field tests are carefully done, the grilles are appropriate, and grille location does not restrict flow hood placement.

Wray, Craig P.; Walker, Iain S.; Sherman, Max H.

2002-05-01T23:59:59.000Z

402

Final Scientific/Technical Report. A closed path methane and water vapor gas analyzer  

Science Conference Proceedings (OSTI)

Robust, economical, low-power and reliable closed-path methane (CH4), carbon dioxide (CO2), and water vapor (H2O) analyzers suitable for long-term measurements are not readily available commercially. Such analyzers are essential for quantifying the amount of CH4 and CO2 released from various ecosystems (wetlands, rice paddies, forests, etc.) and other surface contexts (e.g. landfills, animal husbandry lots, etc.), and for understanding the dynamics of the atmospheric CH4 and CO2 budget and their impact on climate change and global warming. The purpose of this project is to develop a closed-path methane, carbon dioxide gas and water vapor analyzer capable of long-term measurements in remote areas for global climate change and environmental research. The analyzer will be capable of being deployed over a wide range of ecosystems to understand methane and carbon dioxide exchange between the atmosphere and the surface. Measurements of methane and carbon dioxide exchange need to be made all year-round with limited maintenance requirements. During this Phase II effort, we successfully completed the design of the electronics, optical bench, trace gas detection method and mechanical infrastructure. We are using the technologies of two vertical cavity surface emitting lasers, a multiple-pass Herriott optical cell, wavelength modulation spectroscopy and direct absorption to measure methane, carbon dioxide, and water vapor. We also have designed the instrument application software, Field Programmable Gate Array (FPGA), along with partial completion of the embedded software. The optical bench has been tested in a lab setting with very good results. Major sources of optical noise have been identified and through design, the optical noise floor is approaching -60dB. Both laser modules can be temperature controlled to help maximize the stability of the analyzer. Additionally, a piezo electric transducer has been utilized to randomize the noise introduced from potential etalons. It is expected that all original specifications contained within the initial proposal will be met. We are currently in the beginning stages of assembling the first generation prototypes and finalizing the remaining design elements. The first prototypes will initially be tested in our environmental calibration chamber in which specific gas concentrations, temperature and humidity levels can be controlled. Once operation in this controlled setting is verified, the prototypes will be deployed at LI-COR�¢����s Experimental Research Station (LERS). Deployment at the LERS site will test the instrument�¢����s robustness in a real-world situation.

Liukang, Xu; Dayle, McDermitt; Tyler, Anderson; Brad, Riensche; Anatoly, Komissarov; Julie, Howe

2012-05-01T23:59:59.000Z

403

OECD Sustainable Manufacturing Metrics Toolkit  

Science Conference Proceedings (OSTI)

... Responding to industry demand with the goal of creating a ... project, many costs fall, but energy costs increase ... start with a cash flow projection to help ...

2012-05-30T23:59:59.000Z

404

Building Technologies Office: Buildings Performance Database  

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

Forecasts cash flows for energy efficiency projects. Application Programming Interface (API). Allows external software to conduct analysis of the BPD data. Get Involved Receive...

405

Self Guide - ES-CFO  

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

Calculating the Cost of Delay ENERGY STAR Calculating the Cost of Delay An Introduction to the Cash Flow Opportunity (CFO) Calculator Presentation Overview - About ENERGY STAR...

406

d. STATEMENT OF INVESTMENT POLICY, OBJECTIVES  

Science Conference Proceedings (OSTI)

Derivative securities are defined as synthetic securities whose price and ... are based on the cash flows and price movements of other underlying securities.

407

NREL: Buildings Research - News Release Archives  

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

Projected cash flow analysis requires accurate knowledge of current and projected solar radiation at individual project sites. The National Renewable Energy Laboratory has...

408

Underwriter choice and earnings management: evidence from ...  

Science Conference Proceedings (OSTI)

Feb 21, 2007 ... examines the association between the choice of financial ..... using the data obtained directly from the cash flow and income statements.

409

H2A Hydrogen Production Analysis Tool (Presentation)  

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

Cost Analyses Darlene Steward, NREL H2A Overview * Discounted cash flow analysis tool for production of hydrogen from various feedstocks - Inputs are; * Capital costs * Operating...

410

Step 4: Create an action plan to improve | ENERGY STAR  

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

expected cash flow. Read through Chapter 3: Investment Analysis chapter in the ENERGY STAR Building Upgrade Manual. Strategies and incentives to finance energy efficiency...

411

Health Capital and Finance  

E-Print Network (OSTI)

The coefficient on capital intensity is positive andby total assets Capital Intensity Capital stock scaled by0.858 ??? 4.804 ??? Capital Intensity Free Cash Flow

Holland, Sara Bryant

2010-01-01T23:59:59.000Z

412

Valuing Intel: A Strange Tale of Analysts and Announcements  

E-Print Network (OSTI)

Cash flow forecast revisions and stock price changes Ifflow forecast revisions Pre-announcement Year Stock priceforecasts, the three adjustment scenarios can be translated into implied stock price

Cornell, Bradford

2000-01-01T23:59:59.000Z

413

Critical Updates to the Hydrogen Analysis Production Model (H2A...  

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

sources H2A Calculations *Cost escalation *Plant scaling *Financial calculations *Cash flow calculations and levelized cost of hydrogen NATIONAL RENEWABLE ENERGY LABORATORY...

414

Category and Item Commentary  

Science Conference Proceedings (OSTI)

... activities, such as increasing equity and access to ... the service requirements of tax-exempt organizations. ... cash flows, return on investment, or return ...

2013-01-09T23:59:59.000Z

415

Oxygen Absorption in Cooling Flows  

E-Print Network (OSTI)

The inhomogeneous cooling flow scenario predicts the existence of large quantities of gas in massive elliptical galaxies, groups, and clusters that have cooled and dropped out of the flow. Using spatially resolved, deprojected X-ray spectra from the ROSAT PSPC we have detected strong absorption over energies ~0.4-0.8 keV intrinsic to the central ~1 arcmin of the galaxy, NGC 1399, the group, NGC 5044, and the cluster, A1795. These systems have amongst the largest nearby cooling flows in their respective classes and low Galactic columns. Since no excess absorption is indicated for energies below ~0.4 keV the most reasonable model for the absorber is warm, collisionally ionized gas with T=10^{5-6} K where ionized states of oxygen provide most of the absorption. Attributing the absorption only to ionized gas reconciles the large columns of cold H and He inferred from Einstein and ASCA with the lack of such columns inferred from ROSAT, and also is consistent with the negligible atomic and molecular H inferred from HI, and CO observations of cooling flows. The prediction of warm ionized gas as the product of mass drop-out in these and other cooling flows can be verified by Chandra, XMM, and ASTRO-E.

David A. Buote

2000-01-19T23:59:59.000Z

416

Focus on Energy - Renewable Energy Cash-Back Rewards (Wisconsin...  

Open Energy Info (EERE)

all federal, state and local codes; Renewable electricity systems must be grid-tied; PV, solar hot water and wind installers must be Focus on Energy full service installers...

417

Kentucky Residents Cash in on Rebate Program | Department of...  

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

Program September 9, 2010 - 6:30pm Addthis Air-conditioning units are just one of 16 appliances that the Kentucky Appliance Rebate program supports.| File photo Air-conditioning...

418

Kentucky Residents Cash in on Rebate Program | Department of...  

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

and even to solar water heaters and geothermal heat pumps. So far, Kentucky's energy efficient appliance rebate program has issued nearly 29,500 rebates to Kentucky...

419

Los Alamos' New Virtualized Data Center Saves Energy and Cash...  

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

are the key facts? Data centers are responsible for nearly 2% of U.S. electricity consumption -- a price tag of 4.5 billion. In 2006, LANL began to implement a process that...

420

Abating Greenhouse Gas Emissions through Cash-for-Clunker Programs  

E-Print Network (OSTI)

2 e emissions attributable to corn ethanol vary widely, oursuggests a gallon of corn ethanol produces 13 percent fewer

Allen, Alexander; Carpenter, Rachel; Morrison, Geoff

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

Corn Stover for Bioethanol -- Your New Cash Crop?  

SciTech Connect

Biomass ethanol technology is still developing and important questions need to be answered about corn stover removal, but prospects are excellent for you to someday be able to harvest and sell a substantial portion of your stover for fuel production--without hurting your soil or main corn grain operation.

Brown, H.

2001-05-16T23:59:59.000Z

422

Visualization and Diagnostics of Thermal Plasma Flows  

Science Conference Proceedings (OSTI)

Flow visualization is a key tool for the study of thermal plasma flows. Because of their high temperature and associated self emission, standard and high speed photography is commonly used for flow and temperature field visualization. Tracer techniques ... Keywords: d.c. plasma jet, enthalpy probe techniques, induction plasma, laser strobe, photographic techniques, schlieren, thermal plasma flows

M. I. Boulos

2001-01-01T23:59:59.000Z

423

Numerical length estimation for tubular flow reactors  

Science Conference Proceedings (OSTI)

Keywords: free boundary value problems, noniterative and iterative numerical methods, tubular flow reactors

Riccardo Fazio

1992-08-01T23:59:59.000Z

424

Valve for controlling solids flow  

DOE Patents (OSTI)

A valve for controlling the flow of solids comprises a vessel having an overflow point, an inlet line for discharging solids into the vessel positioned within the vessel such that the inlet line's discharge point is lower than the vessel's overflow point, and apparatus for introducing a fluidizing fluid into the vessel. The fluidizing fluid fluidizes the solids within the vessel so that they overflow at the vessel's overflow point. For the removal of nuclear waste product the vessel may be placed within a sealed container having a bottom connected transport line for transporting the solids to storage or other sites. The rate of solids flow is controlled by the flow rate of the fluidizing fluid and by V-notch weirs of different sizes spaced about the top of the vessel.

Staiger, M. Daniel (Idaho Falls, ID)

1985-01-01T23:59:59.000Z

425

ENERGY DEPENDENCE OF PP AND P-CARBON CNI ANALYZING POWER.  

DOE Green Energy (OSTI)

The method described in my RHIC Spin Note (hep-ph/305085) is applied to recently reported data from RHIC experiments in order to obtain values for the spin-flip Regge couplings. The data comes from both 100 GeV/c proton elastic scattering on a carbon target and on the recently commissioned polarized hydrogen gas jet target. These couplings are used to predict the analyzing power for proton-carbon scattering at the top RHIC fixed target energy of 250 GeV/c and for pp scattering at RHIC collider energy.

TRUEMAN, T.L.

2004-10-10T23:59:59.000Z

426

Method and apparatus for analyzing the internal chemistry and compositional variations of materials and devices  

DOE Patents (OSTI)

A method and apparatus is disclosed for obtaining and mapping chemical compositional data for solid devices. It includes a SIMS mass analyzer or similar system capable of being rastered over a surface of the solid to sample the material at a pattern of selected points, as the surface is being eroded away by sputtering or a similar process. The data for each point sampled in a volume of the solid is digitally processed and indexed by element or molecule type, exact spacial location within the volume, and the concentration levels of the detected element or molecule types. This data can then be recalled and displayed for any desired planar view in the volume.

Kazmerski, L.L.

1985-04-30T23:59:59.000Z

427

Synchronized Phasor Data for Analyzing Wind Power Plant Dynamic Behavior and Model Validation  

DOE Green Energy (OSTI)

The U.S. power industry is undertaking several initiatives that will improve the operations of the power grid. One of those is the implementation of 'wide area measurements' using phasor measurement units (PMUs) to dynamically monitor the operations and the status of the network and provide advanced situational awareness and stability assessment. This project seeks to obtain PMU data from wind power plants and grid reference points and develop software tools to analyze and visualize synchrophasor data for the purpose of better understanding wind power plant dynamic behaviors under normal and contingency conditions.

Wan, Y. H.

2013-01-01T23:59:59.000Z

428

Chip scale mechanical spectrum analyzers based on high quality factor overmoded bulk acouslic wave resonators  

Science Conference Proceedings (OSTI)

The goal of this project was to develop high frequency quality factor (fQ) product acoustic resonators matched to a standard RF impedance of 50 {Omega} using overmoded bulk acoustic wave (BAW) resonators. These resonators are intended to serve as filters in a chip scale mechanical RF spectrum analyzer. Under this program different BAW resonator designs and materials were studied theoretically and experimentally. The effort resulted in a 3 GHz, 50 {Omega}, sapphire overmoded BAW with a fQ product of 8 x 10{sup 13}, among the highest values ever reported for an acoustic resonator.

Olsson, R. H., III

2012-03-01T23:59:59.000Z

429

A computer program to analyze cogeneration plant heat balances and equipment design  

Science Conference Proceedings (OSTI)

This paper describes a computer program designed to calculate and analyze cogeneration plant heat balances and equipment and to plot heat balance diagrams. For normal design point conditions, the program calculates gas turbine performance, designs a heat recovery boiler to suit the process requirements, calculates a steam turbine performance and deaerator balance to complete the cycle. In addition, the program will calculate off-design performance for a supplementary firing option or for changes in ambient conditions, gas turbine part load or process conditions.

Stewart, J.C.; Hsun, C.F.

1987-01-01T23:59:59.000Z

430

Analyzing Data for Systems Biology: Working at the Intersection of Thermodynamics and Data Analytics  

Science Conference Proceedings (OSTI)

Many challenges in systems biology have to do with analyzing data within the framework of molecular phenomena and cellular pathways. How does this relate to thermodynamics that we know govern the behavior of molecules? Making progress in relating data analysis to thermodynamics is essential in systems biology if we are to build predictive models that enable the field of synthetic biology. This report discusses work at the crossroads of thermodynamics and data analysis, and demonstrates that statistical mechanical free energy is a multinomial log likelihood. Applications to systems biology are presented.

Cannon, William R.; Baxter, Douglas J.

2012-08-15T23:59:59.000Z

431

Lighting Business Case -- A Report Analyzing Lighting Technology Opportunities with High Return on Investment Energy Savings for the Federal Sector  

SciTech Connect

This document analyzes lighting technology opportunities with high return on investment energy savings for the Federal sector.

Jones, Carol C.; Richman, Eric E.

2005-12-30T23:59:59.000Z

432

Energy Star Building Upgrade Manual Investment Analysis Chapter 3  

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

3. Investment 3. Investment Analysis Revised July 2007 3. Overview 2 3.2 Analytic Conventions 2 3.3 Cash-Flow Analysis Tools 2 Payback Period 3 Net Present Value 4 Internal Rate of Return 6 3.4 Selecting an Analysis Tool 7 3.5 The Investment Analysis Process 8 Choose the Right Time Frame 8 Consider All of the Impacts on Cash Flow 8 Account for Interactions Among Measures 9 Include Anticipated Price Changes 10 Adjust for Taxes 10 Consider Sensitivity Analysis 10 3.6 Other Considerations  Qualitative Assessments 11 Effect of Energy Performance on Shareholder Value 11 3.7 Summary  Bibliography 2 Glossary G- ENERGY STAR ® Building Manual 2 3. Investment Analysis 3. Overview All types of organizations, for-profit and not-for-profit alike, should analyze prospective invest-

433

Three nucleon force effects in intermediate-energy deuteron analyzing powers for dp elastic scattering  

SciTech Connect

A complete high precision set of deuteron analyzing powers for elastic deuteron-proton (dp) scattering at 250 MeV/nucleon (MeV/N) has been measured. The new data are presented together with data from previous measurements at 70, 100, 135 and 200 MeV/N. They are compared with the results of three-nucleon (3N) Faddeev calculations based on modern nucleon-nucleon (NN) potentials alone or combined with two models of three nucleon forces (3NFs): the Tucson-Melbourne 99 (TM99) and Urbana IX. At 250 MeV/N large discrepancies between pure NN models and data, which are not resolved by including 3NFs, were found at c.m. backward angles of {theta}{sub c.m.} > or approx. 120 deg. for almost all the deuteron analyzing powers. These discrepancies are quite similar to those found for the cross section at the same energy. We found small relativistic effects that cannot resolve the discrepancies with the data indicating that other, short-ranged 3NFs are required to obtain a proper description of the data.

Sekiguchi, K. [Department of Physics, Tohoku University, Sendai, 980-8578 (Japan); Okamura, H. [Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka, 567-0047 (Japan); Sakamoto, N.; Sakaguchi, S.; Sasano, M. [RIKEN Nishina Center, Wako, 351-0198 (Japan); Suzuki, H. [Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, 305-8571 (Japan); Dozono, M.; Wakasa, T. [Department of Physics, Kyushu University, Fukuoka, 812-8581 (Japan); Maeda, Y.; Saito, T. [Faculty of Engineering, University of Miyazaki, Miyazaki, 889-2192 (Japan); Sakai, H. [RIKEN Nishina Center, Wako, 351-0198 (Japan); Department of Physics, University of Tokyo, Tokyo, 113-0033 (Japan); Shimizu, Y. [Center for Nuclear Study, University of Tokyo, Tokyo, 113-0033 (Japan); Yako, K. [Department of Physics, University of Tokyo, Tokyo, 113-0033 (Japan); Witala, H.; Golak, J. [Institute of Physics, Jagiellonian University, PL-30059 Cracow (Poland); Gloeckle, W. [Institut fuer theoretische Physik II, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany); Kamada, H. [Department of Physics, Kyushu Institute of Technology, Kitakyushu 804-8550 (Japan); Nogga, A. [Institut fuer Kernphysik, Institute for Advanced Simulation and Juelich Center for Hadron Physics, D-52428 Juelich (Germany)

2011-06-15T23:59:59.000Z

434

A GIS-based Bayesian approach for analyzing spatial-temporal patterns of traffic crashes  

E-Print Network (OSTI)

This thesis develops a GIS-based Bayesian approach for area-wide traffic crash analysis. Five years of crash data from Houston, Texas, are analyzed using a geographic information system (GIS), and spatial-temporal patterns of relative crash risk are identified based on a hierarchical Bayesian approach. This Bayesian approach is used to filter the uncertainty in the data and identify and rank roadway segments with potentially high relative risks for crashes. The results provide a sound basis to take preventive actions to reduce the risks in these segments. To capture the real safety indications better, this thesis differentiates the risks in different directions of the roadways, disaggregates different road types, and utilizes GIS to analyze and visualize the spatial relative crash risks in 3-D views according to different temporal scales. Results demonstrate that the approach is effective in spatially smoothing the relative crash risks, eliminating the instability of estimates while maintaining real safety trends. The posterior risk maps show high-risk roadway segments in 3-D views, which is more reader friendly than the conventional 2-D views. The results are also useful for travelers to choose relatively safer routes.

Li, Linhua

2006-08-01T23:59:59.000Z

435

MPSalsa 3D Simulations of Chemically Reacting Flows  

DOE Data Explorer (OSTI)

Many important scientific and engineering applications require a detailed analysis of complex systems with coupled fluid flow, thermal energy transfer, mass transfer and nonequilibrium chemical reactions. Currently, computer simulations of these complex reacting flow problems are limited to idealized systems in one or two spatial dimensions when coupled with a detailed, fundamental chemistry model. The goal of our research is to develop, analyze and implement advanced MP numerical algorithms that will allow high resolution 3D simulations with an equal emphasis on fluid flow and chemical kinetics modeling. In our research, we focus on the development of new, fully coupled, implicit solution strategies that are based on robust MP iterative solution methods (copied from http://www.cs.sandia.gov/CRF/MPSalsa/). These simulations are needed for scientific and technical areas such as: combustion research for transportation, atmospheric chemistry modeling for pollution studies, chemically reacting flow models for analysis and control of manufacturing processes, surface catalytic reactors for methane to methanol conversion and chemical vapor deposition (CVD) process modeling for production of advanced semiconductor materials (http://www.cs.sandia.gov/CRF/MPSalsa/).

This project website provides six QuickTime videos of these simulations, along with a small image gallery and slideshow animations. A list of related publications and conference presentations is also made available.

436

Design of regulated velocity flow assurance device for petroleum industry  

E-Print Network (OSTI)

The petroleum industry faces problems in transportation of crude petroleum be- cause of the deposition of paraffins, hydrates and asphaltenes on the insides of the pipeline. These are conventionally removed using either chemical inhibitors or mechani- cal devices, called pigs, which travel through the pipeline and mechanically scrape away the deposits. These pigs are propelled by the pipeline product itself and hence travel at the same velocity as the product. Research has indicated that cleaning would be better if the pigs are traveling at a relatively constant velocity of around 70% of the product velocity. This research utilizes the concept of regulating the bypass flow velocity in order to maintain the pig velocity. The bypass flow is regulated by the control unit based on the feedback from the turbine flowmeter, which monitors the bypass flow. A motorized butterfly valve is used for actually controlling the bypass flow. In addition to cleaning, the proposed pig utilizes on-board electronics like accelerom- eter and pressure transducers to store the data gathered during the pig run. This data can then be analyzed and the condition of the pipeline predicted. Thus, this research addresses the problem of designing a pig to maintain a constant velocity in order to achieve better cleaning. It also helps gather elementary data that can be used to predict the internal conditions in the pipe.

Yardi, Chaitanya Narendra

2004-12-01T23:59:59.000Z

437

Flow in geothermal wells. Part IV. Transition criteria for two-phase flow patterns  

DOE Green Energy (OSTI)

Detailed considerations justifying the criteria for transitions between flow patterns are presented. The following are covered: transition from bubble to plug (or slug) flow, transition from plug flow to froth flow, transition from froth to annular mist flow, and model comparisons. (MHR)

Bilicki, Z.; Kestin, J.

1980-12-01T23:59:59.000Z

438

Rinse trough with improved flow  

SciTech Connect

Novel rinse troughs accomplish thorough uniform rinsing. The troughs are suitable for one or more essentially planar objects having substantially the same shape. The troughs ensure that each surface is rinsed uniformly. The new troughs provide uniform rinse fluid flow over the objects' surfaces to accomplish a more thorough rinse than prior art troughs.

O' Hern, Timothy J. (Albuquerque, NM); Grasser, Thomas W. (Albuquerque, NM)

1998-01-01T23:59:59.000Z

439

Redox flow batteries: a review  

Science Conference Proceedings (OSTI)

Redox flow batteries (RFBs) are enjoying a renaissance due to their ability to store large amounts of electrical energy relatively cheaply and efficiently. In this review, we examine the components of RFBs with a focus on understanding the underlying physical processes. The various transport and kinetic phenomena are discussed along with the most common redox couples.

Weber, Adam Z. [Lawrence Berkeley National Laboratory (LBNL); Mench, Matthew M [ORNL; Meyers, Jeremy [University of Texas, Austin; Ross, Philip N. [Lawrence Berkeley National Laboratory (LBNL); Gostick, Jeffrey T. [McGill University, Montreal, Quebec; Liu, Qinghua [University of Tennessee, Knoxville (UTK)

2011-01-01T23:59:59.000Z

440

Wave–Mean Flow Statistics  

Science Conference Proceedings (OSTI)

A relation between the statistics of large-scale waves and the mean flow is derived from the potential enstrophy equations integrated over an isobaric surface. The difference between time-averaged zonal-mean state and the radiative-dynamical ...

Mark R. Schoeberl

1982-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

Shallow Water Flows in Channels  

Science Conference Proceedings (OSTI)

We consider the shallow water equations for flows through channels with arbitrary cross section. The system forms a hyperbolic set of balance laws. Exact steady-state solutions are available and are controlled by the relation between the bottom topography ... Keywords: Balance laws, Hyperbolic conservation laws, Steady-state solutions, Upwind schemes

Gerardo Hernández-Dueñas; Smadar Karni

2011-07-01T23:59:59.000Z

442

Superconducting flux flow digital circuits  

DOE Patents (OSTI)

A NOR/inverter logic gate circuit and a flip flop circuit implemented with superconducting flux flow transistors (SFFTs) are disclosed. Both circuits comprise two SFFTs with feedback lines. They have extremely low power dissipation, very high switching speeds, and the ability to interface between Josephson junction superconductor circuits and conventional microelectronics. 8 figs.

Hietala, V.M.; Martens, J.S.; Zipperian, T.E.

1995-02-14T23:59:59.000Z

443

Superconducting flux flow digital circuits  

DOE Patents (OSTI)

A NOR/inverter logic gate circuit and a flip flop circuit implemented with superconducting flux flow transistors (SFFTs). Both circuits comprise two SFFTs with feedback lines. They have extremely low power dissipation, very high switching speeds, and the ability to interface between Josephson junction superconductor circuits and conventional microelectronics.

Hietala, Vincent M. (Placitas, NM); Martens, Jon S. (Sunnyvale, CA); Zipperian, Thomas E. (Albuquerque, NM)

1995-01-01T23:59:59.000Z

444

Air Flow Distribution in the Sales Area of a Supermarket  

E-Print Network (OSTI)

Many kinds of goods are displayed in a supermarket, which have their own particularities. The consumer flow rate is great and the type of shelved goods varies significantly, thereby influencing the objects that generate heat, and the demands of air temperature, air velocity and humidity in different zones. The results of a study of a sales area of a supermarket in Harbin are presented in this paper, including air temperature, air velocity and humidity. According to the assessment index of air flow distribution (EDT, ADPI, temperature efficiency, energy coefficient of utilization, coefficient of ununiformity and so on), the experimental data were analyzed. The rationality of airflow distribution was then evaluated. Suggestions for air conditioning system design are also presented in this paper.

Fang, X.; Song, C.; Zhao, J.; Wang, Z.

2006-01-01T23:59:59.000Z

445

Impact of wettability correlations on multiphase flow through porous media  

E-Print Network (OSTI)

In the last decades, significant progress has been made in understanding the multiphase displacement through porous media with homogeneous wettability and its relation to the pore geometry. However, the role of wettability at the scale of the pore remains still little understood. In the present study the displacement of immiscible fluids through a two-dimensional porous medium is simulated by means of a mesoscopic particle approach. The substrate is described as an assembly of non-overlapping circular disks whose preferential wettability is distributed according to prescribed spatial correlations, from pore scale up to domains at system size. We analyze how this well-defined heterogeneous wettability affects the flow and try to establish a relationship among wettability-correlations and large-scale properties of the multiphase flow.

Marta S. de La Lama; Martin Brinkmann

2012-05-31T23:59:59.000Z

446

Fluid Flow Within Fractured Porous Media  

Science Conference Proceedings (OSTI)

Fractures provide preferential flow paths to subterranean fluid flows. In reservoir scale modeling of geologic flows fractures must be approximated by fairly simple formulations. Often this is accomplished by assuming fractures are parallel plates subjected to an applied pressure gradient. This is known as the cubic law. An induced fracture in Berea sandstone has been digitized to perform numerical flow simulations. A commercially available computational fluid dynamics software package has been used to solve the flow through this model. Single phase flows have been compared to experimental works in the literature to evaluate the accuracy with which this model can be applied. Common methods of fracture geometry classification are also calculated and compared to experimentally obtained values. Flow through regions of the fracture where the upper and lower fracture walls meet (zero aperture) are shown to induce a strong channeling effect on the flow. This model is expanded to include a domain of surrounding porous media through which the flow can travel. The inclusion of a realistic permeability in this media shows that the regions of small and zero apertures contribute to the greatest pressure losses over the fracture length and flow through the porous media is most prevalent in these regions. The flow through the fracture is shown to be the largest contributor to the net flow through the media. From this work, a novel flow relationship is proposed for flow through fractured media.

Crandall, D.M.; Ahmadi, G. (Clarkson Univ., Potsdam, NY); Smith, D.H.; Bromhal, G.S.

2006-10-01T23:59:59.000Z

447

RUNNING OUT OF AND INTO OIL: ANALYZING GLOBAL OIL DEPLETION AND TRANSITION THROUGH 2050  

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

9 9 RUNNING OUT OF AND INTO OIL: ANALYZING GLOBAL OIL DEPLETION AND TRANSITION THROUGH 2050 October 2003 David L. Greene Corporate Fellow Janet L. Hopson Research Assistant Jia Li Senior Research Technician DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge: Web site: http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the following source: National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone: 703-605-6000 (1-800-553-6847) TDD: 703-487-4639 Fax: 703-605-6900 E-mail: info@ntis.fedworld.gov Web site: http://www.ntis.gov/support/ordernowabout.htm

448

Review of Requirements and Capabilities For Analyzing and Responding to Beyond Design Basis Events  

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

to the to the Secretary of Energy Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events Office of Nuclear Safety Office of Health, Safety and Security U.S. Department of Energy August 2011 2011 Safety Bulletin Report TABLE OF CONTENTS Acronyms i Executive Summary ii 1. Introduction 1 2. Report Overview 1 3. Overview of DOE Nuclear Facilities and Operations 2 4. Analysis of Safety Bulletin Submittals 2 5. Review of DOE and Commercial Nuclear Power Industry Requirements and 5 Guidance for BDBEs 6. Results from the Nuclear Safety Workshop 9 7. Summary of Insights and Opportunities for Improvement 10 8. Summary of Recommendations 12 9. Conclusions 14

449

Review of Requirements and Capabilities For Analyzing and Responding to Beyond Design Basis Events  

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

Review of Requirements Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events Office of Nuclear Safety Office of Health, Safety and Security U.S. Department of Energy August 2011 2011 Safety Bulletin Report TABLE OF CONTENTS Acronyms i Executive Summary ii 1. Introduction 1 2. Report Overview 1 3. Overview of DOE Nuclear Facilities and Operations 2 4. Analysis of Safety Bulletin Submittals 2 5. Review of DOE and Commercial Nuclear Power Industry Requirements and 5 Guidance for BDBEs 6. Results from the Nuclear Safety Workshop 9 7. Summary of Insights and Opportunities for Improvement 10 8. Summary of Recommendations 12 9. Conclusions 14 Appendix A - DOE's Nuclear Safety Approach 15

450

Assessment of methods for analyzing gaseous mixtures of hydrogen isotopes and helium  

DOE Green Energy (OSTI)

Mass spectrographic methods have served well in the past to analyze gaseous mixtures of the hydrogen isotopes. Alternate methods of analyses are reviewed which offer wider ranges and variety of isotopic determinations. This report describes possible improvements of the mass spectrographic determinations, gas chromatography, anti-Stokes Raman spectroscopy, microwave-induced optical emission spectroscopy, and methods of measuring tritium using radiation detection devices. Precision, accuracy, limitations, and costs are included for some of the methods mentioned. Costs range from $70,000 for the anti-Stokes Raman spectroscopy equipment, which can determine hydrogen isotopes but not helium, to less than $10,000 for the gas chromatographic equipment, which can determine hydrogen isotopes and helium with precision and accuracy comparable to those of the mass spectrometer.

Attalla, A.; Bishop, C.T.; Bohl, D.R.; Buxton, T.L.; Sprague, R.E.; Warner, D.K.

1976-10-20T23:59:59.000Z

451

WINDOW 3. 1: A PC program for analyzing window thermal performance: Program description and tutorial  

SciTech Connect

WINDOW 3.1 is a public-domain computer program developed by the Windows and Daylighting Group at Lawrence Berkeley Laboratory for analyzing heat transfer through window systems. The program uses an iterative technique to calculate the one-dimensional temperature profile across a user-defined window system. From this data, window system performance indices, e.g., U-value and shading coefficients, are calculated. WINDOW 2.0, incorporates several technical additions and many new user-friendly features, while continuing to provide a consistent and versatile heat transfer analysis method. The user can vary environmental conditions, window tilt, number of glazing layers, layer properties (thermal infrared, solar and visible optical properties, and thermal conductance), gap widths, composition of gap gas or gas mixture fill, and spacer and frame materials. 7 refs., 3 figs.

1988-10-01T23:59:59.000Z

452

Dynamic Multi-Relational Chinese Restaurant Process for Analyzing Influences on Users in Social Media  

E-Print Network (OSTI)

We study the problem of analyzing influence of various factors affecting individual messages posted in social media. The problem is challenging because of various types of influences propagating through the social media network that act simultaneously on any user. Additionally, the topic composition of the influencing factors and the susceptibility of users to these influences evolve over time. This problem has not studied before, and off-the-shelf models are unsuitable for this purpose. To capture the complex interplay of these various factors, we propose a new non-parametric model called the Dynamic Multi-Relational Chinese Restaurant Process. This accounts for the user network for data generation and also allows the parameters to evolve over time. Designing inference algorithms for this model suited for large scale social-media data is another challenge. To this end, we propose a scalable and multi-threaded inference algorithm based on online Gibbs Sampling. Extensive evaluations on large-scale Twitter and...

Lakkaraju, Himabindu; Bhattacharyya, Chiranjib

2012-01-01T23:59:59.000Z

453

Reciprocal space mapping by spot profile analyzing low energy electron diffraction  

SciTech Connect

We present an experimental approach for the recording of two-dimensional reciprocal space maps using spot profile analyzing low energy electron diffraction (SPA-LEED). A specialized alignment procedure eliminates the shifting of LEED patterns on the screen which is commonly observed upon variation of the electron energy. After the alignment, a set of one-dimensional sections through the diffraction pattern is recorded at different energies. A freely available software tool is used to assemble the sections into a reciprocal space map. The necessary modifications of the Burr-Brown computer interface of the two Leybold and Omicron type SPA-LEED instruments are discussed and step-by-step instructions are given to adapt the SPA 4.1d software to the changed hardware. Au induced faceting of 4 deg. vicinal Si(001) is used as an example to demonstrate the technique.

Meyer zu Heringdorf, Frank-J.; Horn-von Hoegen, Michael [Institut fuer Experimentelle Physik, Universitaet Duisburg-Essen, 45117 Essen (Germany)

2005-08-15T23:59:59.000Z

454

Evaluation of low cost residual gas analyzers for ultrahigh vacuum applications  

DOE Green Energy (OSTI)

In recent years several low cost computer controlled residual gas analyzers (RGAs) have been introduced into the market place. It would be very useful to know the performance characteristics of these RGAs in order to make an informed selection for UHV applications. The UHV applications include extreme sensitivity helium leak detection and monitoring of the residual gas spectra in UHV systems. In this article, the sensitivity and linearity data for nitrogen, hydrogen, and helium are presented in the pressure range 10{sup {minus}8}---10{sup {minus}1} Pa. Further, the relationships between focus voltage and ion currents, relative sensitivity, and fragmentation factor are also included. A direct comparison method is used in obtaining this data. Spinning rotor and extractor gauges are the transfer standard gauges used in Jefferson Lab's vacuum calibration facility, with which all the reported measurements here were carried out.

M. Rao; D. Dong

1996-10-01T23:59:59.000Z

455

Detector and energy analyzer for energetic-hydrogen in beams and plasmas  

DOE Patents (OSTI)

A detector for detecting energetic hydrogen ions and atoms ranging in energy from about 1 eV up to 1 keV in an evacuated environment includes a Schottky diode with a palladium or palladium-alloy gate metal applied to a silicon-dioxide layer on an n-silicon substrate. An array of the energetic-hydrogen detectors having a range of energy sensitivities form a plasma energy analyzer having a rapid response time and a sensitivity for measuring fluxes of energetic hydrogen. The detector is sensitive to hydrogen and its isotopes, but is insensitive to non-hydrogenic particles. The array of energetic-hydrogen detectors can be formed on a single silicon chip, with thin-film layers of gold metal applied in various thicknesses to successive detectors in the array. The gold layers serve as particle energy-filters so that each detector is sensitive to a different range of hydrogen energies.

Bastasz, R.J.; Hughes, R.C.; Wampler, W.R.

1986-10-31T23:59:59.000Z

456

Using MotorMaster to Track Motor Inventory and Analyze Purchasing Decisions  

E-Print Network (OSTI)

MotorMaster 4.0 can be a useful software package for electric motor management decisions in industrial facilities. To be successful, the MotorMaster database must be populated with detailed motor nameplate information. Georgia Tech worked with a large, motor intensive chemical manufacturing plant to collect motor nameplate information on motors 60 hp or larger and populate the motor database. Approximately 130 motors were identified and surveyed. The completed motor database is used to track maintenance actions and to analyze motor replacement options. The approach used to secure and enter motor nameplate data along with examples of purchasing analyses completed will be presented. The success of the MotorMaster software with large motors has convinced the firm to expand its use to smaller horsepower motors.

Brown, M.; Meffort, W.

2007-01-01T23:59:59.000Z

457

Analyzing the Performance of Scientific Applications with OpenSpeedShop  

Science Conference Proceedings (OSTI)

Open|SpeedShop (O|SS) is a comprehensive, open source, parallel performance analysis tool set that provides the most common performance analysis steps in a single environment. It can help application programmers to analyze, understand and optimize the performance of their codes. O|SS provides a wide range of performance experiments covering both sampling and tracing techniques. It works on sequential, MPI, and multithreaded codes without requiring source code modifications. The latter allows users an easy integration of O|SS into their application's workflow and runtime environment. This ensures a low learning curve and is essential for achieving a wide spread adoption of any performance tool set. O|SS, together with documentation and extensive tutorials, is available at http://www.openspeedshop.org/.

Schulz, M; Galarowicz, J; Maghrak, D; Hachfeld, W; Montoya, D; Cranford, S

2009-10-14T23:59:59.000Z

458

The Zurich Extragalactic Bayesian Redshift Analyzer (ZEBRA), version 1.0 -- User manual  

E-Print Network (OSTI)

ZEBRA, the Zurich Extragalactic Bayesian Redshift Analyzer, is a tool for estimating redshifts and template types of galaxies using medium- and broad-band photometric data. ZEBRA employs novel techniques within the template-fitting approach to produce high-quality Maximum-Likelihood and Bayesian redshift estimates. This manuscript serves as a user guide to ZEBRA. It explains how to use ZEBRA, specifies input and output formats, and gives a short account of the available options. ZEBRA is a free and open-source software distributed under the GNU Public License 3 and available at http://www.exp-astro.phys.ethz.ch/ZEBRA . Several upgrades are currently being implemented in ZEBRA. An updated documentation will be provided at each new release. Any problems, comments and suggestions on the code and the manual should be sent via e-mail to zebra@phys.ethz.ch.

R. Feldmann; C. M. Carollo; C. Porciani; S. J. Lilly; P. Oesch

2008-01-21T23:59:59.000Z

459

Microscopic Approach to Analyze Solar-Sail Space-Environment Effects  

E-Print Network (OSTI)

Near-sun space-environment effects on metallic thin films solar sails as well as hollow-body sails with inflation fill gas are considered. Analysis of interaction of the solar radiation with the solar sail materials is presented. This analysis evaluates worst-case solar radiation effects during solar-radiation-pressure acceleration. The dependence of the thickness of solar sail on temperature and on wavelength of the electromagnetic spectrum of solar radiation is investigated. Physical processes of the interaction of photons, electrons, protons and helium nuclei with sail material atoms and nuclei, and inflation fill gas molecules are analyzed. Calculations utilized conservative assumptions with the highest values for the available cross sections for interactions of solar photons, electrons and protons with atoms, nuclei and hydrogen molecules. It is shown that for high-energy photons, electrons and protons the beryllium sail is mostly transparent. Sail material will be partially ionized by solar UV and low-e...

Kezerashvili, Roman Ya

2009-01-01T23:59:59.000Z

460

Method and apparatus for analyzing the fill characteristics of a packaging container  

DOE Patents (OSTI)

A system for analyzing the fill characteristics of a container. A container having a filling material therein is positioned adjacent a sound generator. Sound waves from the generator are applied to the container, causing it to vibrate. A vibration detector is used to determine the amount of container vibration. A preferred vibration detector involves a laser vibrometer which applies a reference laser beam to the vibrating container. The reference beam is reflected off of the container to generate a reflected laser beam. The reflected beam experiences a Doppler frequency shift compared with the reference beam which is caused by container vibration. The Doppler shift of the reflected beam is then compared with standardized Doppler shift data from a control container. Repeated Doppler shift measurements may also be undertaken which are converted into a vibration profile that is compared with a standardized vibration profile from a control container.

Rodriguez, Julio G. (Idaho Falls, ID)

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "analyzes cash flow" 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

USE OF STREAM ANALYZER FOR SOLUBILITY PREDICTIONS OF SELECTED HANFORD TANK WASTE  

SciTech Connect

The Hanford Tank Waste Operations Simulator (HTWOS) models the mission to manage, retrieve, treat and vitrify Hanford waste for long-term storage and disposal. HTWOS is a dynamic, flowsheet, mass balance model of waste retrieval and treatment activities. It is used to evaluate the impact of changes on long-term mission planning. The project is to create and evaluate the integrated solubility model (ISM). The ISM is a first step in improving the chemistry basis in HTWOS. On principal the ISM is better than the current HTWOS solubility. ISM solids predictions match the experimental data well, with a few exceptions. ISM predictions are consistent with Stream Analyzer predictions except for chromium. HTWOS is producing more realistic results with the ISM.

PIERSON KL; BELSHER JD; HO QT

2012-11-02T23:59:59.000Z

462

Detector and energy analyzer for energetic-hydrogen in beams and plasmas  

DOE Patents (OSTI)

A detector for detecting energetic hydrogen ions and atoms ranging in energy from about 1 eV up to 1 keV in an evacuated environment includes a Schottky diode with a palladium or palladium-alloy gate metal applied to a silicondioxide layer on an n-silicon substrate. An array of the energetic-hydrogen detectors having a range of energy sensitivities form a plasma energy analyzer having a rapid response time and a sensitivity for measuring fluxes of energetic hydrogen. The detector is sensitive to hydrogen and its isotopes but is insensitive to non-hydrogenic particles. The array of energetic-hydrogen detectors can be formed on a single silicon chip, with thin-film layers of gold metal applied in various thicknesses to successive detectors in the array. The gold layers serve as particle energy-filters so that each detector is sensitive to a different range of hydrogen energies.

Bastasz, Robert J. (Livermore, CA); Hughes, Robert C. (Albuquerque, NM); Wampler, William R. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

463

Detector and energy analyzer for energetic-hydrogen in beams and plasmas  

DOE Patents (OSTI)

A detector for detecting energetic hydrogen ions and atoms ranging in energy from about 1 eV up to 1 keV in an evacuated environment includes a Schottky diode with a palladium or palladium-alloy gate metal applied to a silicon-dioxide layer on an n-silicon substrate. An array of the energetic-hydrogen detectors having a range of energy sensitivities form a plasma energy analyzer having a rapid response time and a sensitivity for measuring fluxes of energetic hydrogen. The detector is sensitive to hydrogen and its isotopes but is insensitive to non-hydrogenic particles. The array of energetic-hydrogen detectors can be formed on a single silicon chip, with thin-film layers of gold metal applied in various thicknesses to successive detectors in the array. The gold layers serve as particle energy-filters so that each detector is sensitive to a different range of hydrogen energies. 4 figs.

Bastasz, R.J.; Hughes, R.C.; Wampler, W.R.

1988-11-01T23:59:59.000Z

464

Techniques for modeling and analyzing RNA and protein folding energy landscapes  

E-Print Network (OSTI)

RNA and protein molecules undergo a dynamic folding process that is important to their function. Computational methods are critical for studying this folding pro- cess because it is difficult to observe experimentally. In this work, we introduce new computational techniques to study RNA and protein energy landscapes, includ- ing a method to approximate an RNA energy landscape with a coarse graph (map) and new tools for analyzing graph-based approximations of RNA and protein energy landscapes. These analysis techniques can be used to study RNA and protein fold- ing kinetics such as population kinetics, folding rates, and the folding of particular subsequences. In particular, a map-based Master Equation (MME) method can be used to analyze the population kinetics of the maps, while another map analysis tool, map-based Monte Carlo (MMC) simulation, can extract stochastic folding pathways from the map. To validate the results, I compared our methods with other computational meth- ods and with experimental studies of RNA and protein. I first compared our MMC and MME methods for RNA with other computational methods working on the com- plete energy landscape and show that the approximate map captures the major fea- tures of a much larger (e.g., by orders of magnitude) complete energy landscape. Moreover, I show that the methods scale well to large molecules, e.g., RNA with 200+ nucleotides. Then, I correlate the computational results with experimental findings. I present comparisons with two experimental cases to show how I can pre- dict kinetics-based functional rates of ColE1 RNAII and MS2 phage RNA and their mutants using our MME and MMC tools respectively. I also show that the MME and MMC tools can be applied to map-based approximations of protein energy energy landscapes and present kinetics analysis results for several proteins.

Tang, Xinyu

2007-12-01T23:59:59.000Z

465

Irradiated-Microsphere Gamma Analyzer (IMGA): an integrated system for HTGR coated particle fuel performance assessment  

SciTech Connect

The Irradiated-Microsphere Gamma Analyzer (IMGA) System, designed and built at ORNL, provides the capability of making statistically accurate failure fraction measurements on irradiated HTGR coated particle fuel. The IMGA records the gamma-ray energy spectra from fuel particles and performs quantitative analyses on these spectra; then, using chemical and physical properties of the gamma emitters it makes a failed-nonfailed decision concerning the ability of the coatings to retain fission products. Actual retention characteristics for the coatings are determined by measuring activity ratios for certain gamma emitters such as /sup 137/Cs//sup 95/Zr and /sup 144/Ce//sup 95/Zr for metallic fission product retention and /sup 134/Cs//sup 137/Cs for an indirect measure of gaseous fission product retention. Data from IMGA (which can be put in the form of n failures observed in N examinations) can be accurately described by the binomial probability distribution model. Using this model, a mathematical relationship between IMGA data (n,N), failure fraction, and confidence level was developed. To determine failure fractions of less than or equal to 1% at confidence levels near 95%, this model dictates that from several hundred to several thousand particles must be examined. The automated particle handler of the IMGA system provides this capability. As a demonstration of failure fraction determination, fuel rod C-3-1 from the OF-2 irradiation capsule was analyzed and failure fraction statistics were applied. Results showed that at the 1% failure fraction level, with a 95% confidence level, the fissile particle batch could not meet requirements; however, the fertile particle exceeded these requirements for the given irradiation temperature and burnup.

Kania, M.J.; Valentine, K.H.

1980-02-01T23:59:59.000Z

466

Soluble Lead Flow Battery: Soluble Lead Flow Battery Technology  

SciTech Connect

GRIDS Project: General Atomics is developing a flow battery technology based on chemistry similar to that used in the traditional lead-acid battery found in nearly every car on the road today. Flow batteries store energy in chemicals that are held in tanks outside the battery. When the energy is needed, the chemicals are pumped through the battery. Using the same basic chemistry as a traditional battery but storing its energy outside of the cell allows for the use of very low cost materials. The goal is to develop a system that is far more durable than today’s lead-acid batteries, can be scaled to deliver megawatts of power, and which lowers the cost of energy storage below $100 per kilowatt hour.

None

2010-09-01T23:59:59.000Z

467

Processing flows of information: From data stream to complex event processing  

Science Conference Proceedings (OSTI)

A large number of distributed applications requires continuous and timely processing of information as it flows from the periphery to the center of the system. Examples include intrusion detection systems which analyze network traffic in real-time to ... Keywords: Complex event processing, publish-subscribe, stream processing

Gianpaolo Cugola; Alessandro Margara

2012-06-01T23:59:59.000Z

468

AIAA Paper 2006-0102 Analysis of Jet Effects on Co-Flow Jet Airfoil  

E-Print Network (OSTI)

.-C. Zha, C. Paxton, A. Conley, A. Wells, and B. Carroll, "Effect of Injection Slot Size on High in this paper to analyze the jet effect on co-flow jet airfoil with injection and suction and the airfoil with injection only. The ducts reaction forces formulations to be included for lift and drag calculation

Zha, Gecheng

469

Prediction and Analysis of Rotor Tip-Clearance Flows using Large-Eddy Simulation  

Science Conference Proceedings (OSTI)

In order to analyze the dynamics of rotor tip-clearance flow and determine the underlying mechanism for the tip-leakage cavitation, a newly developed large-eddy simulation (LES) solver which combines an immersed-boundary method with a generalized curvilinearstructured ...

Donghyun You; Meng Wang; Parviz Moin; Rajat Mittal

2004-06-01T23:59:59.000Z

470

External Influences on Nocturnal Thermally Driven Flows in a Deep Valley  

Science Conference Proceedings (OSTI)

The dynamics that govern the evolution of nighttime flows in a deep valley, California’s Owens Valley, are analyzed. Measurements from the Terrain-Induced Rotor Experiment (T-REX) reveal a pronounced valley-wind system with often nonclassical ...

Juerg Schmidli; Gregory S. Poulos; Megan H. Daniels; Fotini K. Chow

2009-01-01T23:59:59.000Z

471

A Linear Analysis on the Acceleration of Zonal Flow by Baroclinic Instability. Part I. Terrestrial Atmosphere  

Science Conference Proceedings (OSTI)

A mechanism which accelerates the midlatitude zonal-mean wind is investigated by means of linear stability analysis for the wave-zonal flow interaction. Two kinds of models are analyzed: In the first, the basic state consists of an unstable zonal-...

T. Sasamori; K. Droegemeier

1983-10-01T23:59:59.000Z

472

Thermal ground water flow systems in the thrust zone in southeastern Idaho  

DOE Green Energy (OSTI)

The results of a regional study of thermal and non-thermal ground water flow systems in the thrust zone of southern Idaho and western Wyoming are presented. The study involved hydrogeologic and hydrochemical data collection and interpretation. Particular emphasis was placed on analyzing the role that thrust zones play in controlling the movement of thermal and non-thermal fluids.

Ralston, D.R.

1983-05-01T23:59:59.000Z

473

Loop Current Cycle: Coupled Response of the Loop Current with Deep Flows  

Science Conference Proceedings (OSTI)

Although the upper-layer dynamics of the Loop Current and eddies in the Gulf of Mexico are well studied, the understanding of how they are coupled to the deep flows is limited. In this work, results from a numerical model are analyzed to classify ...

Y.-L. Chang; L.-Y. Oey

2011-03-01T23:59:59.000Z

474

Effect of radial transport on compressor tip clearance flow structures and enhancement of stable flow range  

E-Print Network (OSTI)

The relation between tip clearance flow structure and axial compressor stall is interrogated via numerical simulations, to determine how casing treatment can result in improved flow range. Both geometry changes and flow ...

Nolan, Sean Patrick Rock

2005-01-01T23:59:59.000Z

475

IHT: Tools for Computing Insolation Absorption by Particle Laden Flows  

DOE Green Energy (OSTI)

This report describes IHT, a toolkit for computing radiative heat exchange between particles. Well suited for insolation absorption computations, it is also has potential applications in combustion (sooting flames), biomass gasification processes and similar processes. The algorithm is based on the 'Photon Monte Carlo' approach and implemented in a library that can be interfaced with a variety of computational fluid dynamics codes to analyze radiative heat transfer in particle-laden flows. The emphasis in this report is on the data structures and organization of IHT for developers seeking to use the IHT toolkit to add Photon Monte Carlo capabilities to their own codes.

Grout, R. W.

2013-10-01T23:59:59.000Z

476

Mathematical modeling of methane flow in coal beds  

Science Conference Proceedings (OSTI)

The paper offers to describe the free and occlude gas filtration and diffusion in a coal bed by a numerical model in the form of a system of heterogenous parabolic equations. The gas flow as a shock and depression wave has been considered, and the desorption isotherm conditions for these waves to arise in a coal bed are formulated. By analyzing experimental data on cavities generated by a sudden coal and gas outburst, the authors construct the numerical model describing gas and coal mix outflow in a mine.

Fedorov, A.V.; Fedorchenko, I.A. [Russian Academy of Sciences, Novosibirsk (Russian Federation)

2009-01-15T23:59:59.000Z

477

Analysis of performance capabilities of redox-flow storage batteries  

SciTech Connect

Major physical performance parameters and economic factors of a generalized redox-flow storage battery system are analyzed. The system is divided into power-related and energy-related subsystems. The economic factors include plant capital (and other) costs, electrical energy lost by the storage-cycle inefficiency, and a penalty term for failures. Relationships are formulated for the overall system efficiency and system performance parameters (voltages, current density, state-of-charge of the storage liquid, and parasitic losses). Equations for sizing and costing of the battery and the storage tank subsystems are given. Directions for needed research are indicated.

Roy, A.S.; Kaplan, S.I.

1978-01-01T23:59:59.000Z

478

Method for analyzing the chemical composition of liquid effluent from a direct contact condenser  

DOE Patents (OSTI)

A computational modeling method for predicting the chemical, physical, and thermodynamic performance of a condenser using calculations based on equations of physics for heat, momentum and mass transfer and equations of equilibrium thermodynamics to determine steady state profiles of parameters throughout the condenser. The method includes providing a set of input values relating to a condenser including liquid loading, vapor loading, and geometric characteristics of the contact medium in the condenser. The geometric and packing characteristics of the contact medium include the dimensions and orientation of a channel in the contact medium. The method further includes simulating performance of the condenser using the set of input values to determine a related set of output values such as outlet liquid temperature, outlet flow rates, pressures, and the concentration(s) of one or more dissolved noncondensable gas species in the outlet liquid. The method may also include iteratively performing the above computation steps using a plurality of sets of input values and then determining whether each of the resulting output values and performance profiles satisfies acceptance criteria.

Bharathan, Desikan (Lakewood, CO); Parent, Yves (Golden, CO); Hassani, A. Vahab (Golden, CO)

2001-01-01T23:59:59.000Z

479

RAPID AUTOMATED RADIOCHEMICAL ANALYZER FOR DETERMINATION OF TARGETED RADIONUCLIDES IN NUCLEAR PROCESS STREAMS  

Science Conference Proceedings (OSTI)

Some industrial process-scale plants require the monitoring of specific radionuclides as an indication of the composition of their feed streams or as indicators of plant performance. In this process environment, radiochemical measurements must be fast, accurate, and reliable. Manual sampling, sample preparation, and analysis of process fluids are highly precise and accurate, but tend to be expensive and slow. Scientists at Pacific Northwest National Laboratory (PNNL) have assembled and characterized a fully automated prototype Process Monitor instrument which was originally designed to rapidly measure Tc-99 in the effluent streams of the Waste Treatment Plant at Hanford, WA. The system is capable of a variety of tasks: extraction of a precise volume of sample, sample digestion / analyte redox adjustment, column-based chemical separations, flow-through radiochemical detection and data analysis / reporting. The system is compact, its components are fluidically inter-linked, and analytical results can be immediately calculated and electronically reported. It is capable of performing a complete analytical cycle in less than 15 minutes. The system is highly modular and can be adapted to a variety of sample types and analytical requirements. It exemplifies how automation could be integrated into reprocessing facilities to support international nuclear safeguards needs.

O'Hara, Matthew J.; Durst, Philip C.; Grate, Jay W.; Egorov, Oleg; Devol, Timothy A.

2008-03-30T23:59:59.000Z

480

Analyzing Dynamic Probabilistic Risk Assessment Data through Topology-Based Clustering  

Science Conference Proceedings (OSTI)

We investigate the use of a topology-based clustering technique on the data generated by dynamic event tree methodologies. The clustering technique we utilizes focuses on a domain-partitioning algorithm based on topological structures known as the Morse-Smale complex, which partitions the data points into clusters based on their uniform gradient flow behavior. We perform both end state analysis and transient analysis to classify the set of nuclear scenarios. We demonstrate our methodology on a dataset generated for a sodium-cooled fast reactor during an aircraft crash scenario. The simulation tracks the temperature of the reactor as well as the time for a recovery team to fix the passive cooling system. Combined with clustering results obtained previously through mean shift methodology, we present the user with complementary views of the data that help illuminate key features that may be otherwise hidden using a single methodology. By clustering the data, the number of relevant test cases to be selected for further analysis can be drastically reduced by selecting a representative from each cluster. Identifying the similarities of simulations within a cluster can also aid in the drawing of important conclusions with respect to safety analysis.

Diego Mandelli; Dan Maljovec; BeiWang; Valerio Pascucci; Peer-Timo Bremer

2013-09-01T23:59:59.000Z

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481

A three phase load flow algorithm for Shipboard Power Systems  

E-Print Network (OSTI)

Load Flow (Power Flow) is the determination of the steady state operating conditions for the system. This is a very important tool utilized by many real time applications in power systems. Traditional load flow methods, which incorporate Gauss-Seidel and/or Newton Raphson techniques, were primarily developed for transmission system analysis. Distribution load flow analysis must incorporate its unique characteristics such as unbalanced loads, distributed loads, radial network structure, and one, two, or three phase lines. Also, there are a variety of components included in distribution systems such as switches, transformers, voltage regulators, and distributed generators. Therefore, the traditional methods cannot be directly applied to distribution systems since the assumptions made for transmission systems are not valid for the unique characteristics of distribution systems. A Shipboard Power System (SPS) is a finite inertia electric power system. The generation, transmission, and distribution systems in SPSs are tightly coupled. In reality, the transmission system consists of the lines that interconnect the generator buses in a ring configuration. The distribution system consists of lines, transformers, and loads connected in a radial configuration. When analyzing a SPS, its distinct characteristics must be taken into consideration. Therefore, just as transmission and distribution systems have unique methods of analysis, SPSs also need a unique method of analysis. A load flow algorithm for a SPS must consider its distribution system characteristics as well as the unique characteristics of SPSs. The work presented in this thesis discussed a load flow algorithm developed for Shipboard Power Systems and terrestrial wye and delta connected radial distribution systems. The issues in developing a load flow algorithm for a SPS are addressed and the solution is presented. This solution combines three methods that addressed the issues of multiple sources, ring configuration, and radial load flow. This algorithm was tested on the IEEE 37 Bus Radial Distribution Test Feeder and a simplified Shipboard Power Test System developed by researchers in the Power System Automation Laboratory. The results produced minimal percent error when compared to the actual output results.

Medina-Calder?on, M?onica M

2003-01-01T23:59:59.000Z

482

A laboratory scale supersonic combustive flow system  

DOE Green Energy (OSTI)

A laboratory scale supersonic flow system [Combustive Flow System (CFS)] which utilizes the gaseous products of methane-air and/or liquid fuel-air combustion has been assembled to provide a propulsion type exhaust flow field for various applications. Such applications include providing a testbed for the study of planar two-dimensional nozzle flow fields with chemistry, three-dimensional flow field mixing near the exit of rectangular nozzles, benchmarking the predictive capability of various computational fluid dynamic codes, and the development and testing of advanced diagnostic techniques. This paper will provide a detailed description of the flow system and data related to its operation.

Sams, E.C.; Zerkle, D.K.; Fry, H.A.; Wantuck, P.J.

1995-02-01T23:59:59.000Z

483

Flow visualization around cylinders in a channel flow using Particle Image Velocimetry  

E-Print Network (OSTI)

The objective of the undertaken study was to apply state-of the-art Particle Image Velocimetry to measure full field turbulent flow around cylinders, starting with one cylinder and eventually to a quad cylinder arrangement. Particle Image Velocimetry as used herein is identical to the techniques in use in Texas A&M University's Pulsed Laser Velocimetry Laboratory where the test facilities include a flow bench, a ND-YAG pulsed laser, and data acquistion equipment, consisting of a CCD camera and attendant PC's programmed to control the laser and camera, and to acquire and store the digitized data. The data can then be retrieved for analysis. The data was analyzed using an existing algorithm, the Cross Correlation Code. Full-field, fluid two-dimensional velocity around, about, and past the test specimens was obtained with the digital camera which captured the images of light reflected from seeds flowing within the fluid within a given time exposure time of 53.8 ms. The viewing field area (approximately 5 cm by 5 cm) was illuminated by two light sheets impinging on the test specimens from opposing sides at angles less than 90' from the horizontal. The impinging angles were selected to create the least amount of shading by the test specimen and the incident target on the test specimen was common to both light sheets so that they would superimpose on the target, thus reinforcing the illumination intensity. The two light sheets were created by splitting the pulsing beam into two beams, and then each beam directed with, and to, mirrors which were part of an optical train consisting of three cylindrical lenses which converted the beam into a light sheet 0.5 to 1.0mm thick and 5 cm wide. The test conditions had a range of from 0.043 to 0.0579 m/s for the average velocity of the fluid and a range of Reynolds number of 7142 to 8140. Given these test conditions, vector plots representing the flow fieldwere generated for one test run on each of the these specimens. The velocity component of the plotted vectors was derived from a scale within the plots. Thus, two-dimensional velocities could be read anywhere within the plots. A mix of quantitative and qualitative data was obtained for the one, two, three, and quad cylinder arrangement test specimens.

Martinez, Ramiro Serna

1994-01-01T23:59:59.000Z

484

Turbulent Flow Analysis and Coherent Structure Identification in Experimental Models with Complex Geometries  

E-Print Network (OSTI)

Turbulent flows and coherent structures emerging within turbulent flow fields have been extensively studied for the past few decades and a wide variety of experimental and numerical techniques have been developed for measurement and analysis of turbulent flows. The complex nature of turbulence requires methods that can accurately estimate its highly chaotic spatial and temporal behavior. Some of the classical cases of turbulent flows with simpler geometries have been well characterized by means of the existing experimental techniques and numerical models. Nevertheless, since most turbulent fields are of complex geometries; there is an increasing interest in the study of turbulent flows through models with more complicated geometries. In this dissertation, characteristics of turbulent flows through two different facilities with complex geometries are studied applying two different experimental methods. The first study involves the investigation of turbulent impinging jets through a staggered array of rods with or without crossflow. Such flows are crucial in various engineering disciplines. This experiment aimed at modeling the coolant flow behavior and mixing phenomena within the lower plenum of a Very High Temperature Reactor (VHTR). Dynamic Particle Image Velocimetry (PIV) and Matched Index of Refraction (MIR) techniques were applied to acquire the turbulent velocity fields within the model. Some key flow features that may significantly enhance the flow mixing within the test section or actively affect some of the structural components were identified in the velocity fields. The evolution of coherent structures within the flow field is further investigated using a Snapshot Proper Orthogonal Decomposition (POD) technique. Furthermore, a comparative POD method is proposed and successfully implemented for identification of the smaller but highly influential coherent structures which may not be captured in the full-field POD analysis. The second experimental study portrays the coolant flow through the core of an annular pebble bed VHTR. The complex geometry of the core and the highly turbulent nature of the coolant flow passing through the gaps of fuel pebbles make this case quite challenging. In this experiment, a high frequency Hot Wire Anemometry (HWA) system is applied for velocity measurements and investigation of the bypass flow phenomena within the near wall gaps of the core. The velocity profiles within the gaps verify the presence of an area of increased velocity close to the outer reflector wall; however, the characteristics of the coolant flow profile is highly dependent on the gap geometry and to a less extent on the Reynolds number of the flow. The time histories of the velocity are further analyzed using a Power Spectra Density (PSD) technique to acquire information about the energy content and energy transfer between eddies of different sizes at each point within the gaps.

Amini, Noushin

2011-12-01T23:59:59.000Z

485

A New, Iterative, Synchronous-Response Algorithm for Analyzing the Morton Effect  

E-Print Network (OSTI)

The present work proposes a new computational algorithm for analyzing Morton Effect using a Successive Iterative Synchronous Response Algorithm (SISRA). Previous studies on the Morton Effect were based on Eigen or Nyquist analysis for stability studies and predicted only an onset speed of instability. The outcome of SISRA is the convergence of response to a steady state orbit in a finite number of iterations. A progressive increase in the response with increasing running speed indicates the former instability. SISRA predicts both the synchronous response for the speed range of concern plus the speed where the response becomes divergent. SISRA is implemented in a Timochenko-beam-based finite-element rotordynamics software suite. SISRA analyzes the Morton Effect as a synchronous response problem with excitations from: (1) mechanical imbalance, (2) induced thermal bent shaft moments, and (3) mechanical imbalance that is induced by thermal bow. A general elliptical orbit can be decomposed into the sum of forward and backward circular orbits. As input, SISRA requires that, at a specified speed, equilibrium position, and orbit: (1) the predicted maximum differential temperature, and (2) the angle between hot spot (position of maximum temperature) and position of minimum film thickness. Two examples from the published literature are considered. SISRA predicted higher vibration levels, even before the motion diverges due to Morton Effect. In some cases, the synchronous response of the system due to Morton Effect is orders of magnitude greater than the response due only to mechanical imbalance. The combined effects of: (1) mechanical imbalance with induced thermal bent shaft moments, and (2) mechanical imbalance with thermally induced mechanical imbalance are also studied. The impact of induced thermal bent shaft moments is found to be greater than the mechanical imbalance induced by thermal bow. A parametric investigation on the impact of the changes of (1) bearing length to diameter ratio, (2) reduced viscosity of the lubricant, (3) bearing radial clearance to radius ratio and (4) overhung mass magnitude is performed to consider their respective impacts on synchronous response. Based on the available input data and the cases considered, reducing viscosity and reducing the overhung mass are found to be the best remedies to alleviate problems arising from the Morton Effect.

Saha, Rohit

2010-12-01T23:59:59.000Z

486

Vertical Flow Wetland Pilot Study  

Science Conference Proceedings (OSTI)

This is an interim report to present the preliminary results of a study conducted by Duke Energy to test the potential effectiveness of vertical flow wetlands (VFWs) for the removal of selenium, mercury, and other related compounds from a flue gas desulfurization (FGD) discharge. These compounds commonly are found in and regulated for coal-fired utility water discharges. There is a widespread need for a cost-effective alternative to physiochemical treatment to maintain compliance for these parameters, on...

2008-12-08T23:59:59.000Z

487

Economics of Increased Power Flow  

Science Conference Proceedings (OSTI)

This report focuses on methodologies for evaluating the costs and benefits of the diverse technologies that can be used either individually or jointly to increase the flow of power through the transmission system. It begins by describing a broad slate of potential technologies and approaches for increasing transmission capacity and improving system efficiency and then provides an overall framework for assessing the benefits and costs of these technologies. Later sections cover the practical implementatio...

2010-12-21T23:59:59.000Z

488

Flow duct for nuclear reactors  

DOE Patents (OSTI)

Improved liquid sodium flow ducts for nuclear reactors are described wherein the improvement comprises varying the wall thickness of each of the walls of a polygonal tubular duct structure so that each of the walls is of reduced cross-section along the longitudinal center line and of a greater cross-section along wall junctions with the other walls to form the polygonal tubular configuration.

Straalsund, Jerry L. (Richland, WA)

1978-01-01T23:59:59.000Z

489

Countercurrent flow absorber and desorber  

DOE Patents (OSTI)

Countercurrent flow absorber and desorber devices are provided for use in absorption cycle refrigeration systems and thermal boosting systems. The devices have increased residence time and surface area resulting in improved heat and mass transfer characteristics. The apparatuses may be incorporated into open cycle thermal boosting systems in which steam serves both as the refrigerant vapor which is supplied to the absorber section and as the supply of heat to drive the desorber section of the system. 9 figs.

Wilkinson, W.H.

1984-10-16T23:59:59.000Z

490

Field-Flow Fractionation of Carbon Nanotubes and Related Materials  

Science Conference Proceedings (OSTI)

During the grant period, we carried out FFF studies of carbonaceous soot, single-walled and multi-walled carbon nanotubes, carbon nano-onions and polyoxometallates. FFF alone does not provide enough information to fully characterize samples, so our suite of characterization techniques grew to include light scattering (especially Photon Correlation Spectroscopy), scanning and transmission electron microscopy, thermogravimetric analysis and spectroscopic methods. We developed convenient techniques to deposit and examine minute FFF fractions by electron microscopy. In collaboration with Arthur Cammers (University of Kentucky), we used Flow Field-Flow Fractionation (Fl-FFF) to monitor the solution-phase growth of keplerates, a class of polyoxometallate (POM) nanoparticles. We monitored the evolution of Mo-POM nanostructures over the course of weeks by by using flow field-flow fractionation and corroborated the nanoparticle structures by using transmission electron microscopy (TEM). Total molybdenum in the solution and precipitate phases was monitored by using inductively coupled plasma analyses, and total Mo-POM concentration by following the UV-visible spectra of the solution phase. We observe crystallization-driven formation of (Mo132) keplerate and solution phase-driven evolution of structurally related nanoscopic species (3-60 nm). FFF analyses of other classes of materials were less successful. Attempts to analyze platelets of layered materials, including exfoliated graphite (graphene) and TaS2 and MoS2, were disappointing. We were not able to optimize flow conditions for the layered materials. The metal sulfides react with the aqueous carrier liquid and settle out of suspension quickly because of their high density.

John P. Selegue

2011-11-17T23:59:59.000Z

491

NETL: Gasifipedia - Entrained Flow Gasifiers  

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

Entrained Flow Gasifiers Entrained Flow Gasifiers Uhde - Prenflo PRENFLO(tm) is a pressurized (>40 bar), entrained-flow gasification technology first demonstrated in the late 1980s, and currently offered by Uhde (Krupp Koppers merged with Uhde in 1997). Notably, PRENFLO(tm) is the gasification technology used at the world's largest solid feedstock-based gasifier at ELCOGAS's Puertollano IGCC plant in Spain (which is fueled with a 50%/50% mix of petcoke and coal). PRENFLO(tm) is offered in two varieties, the PRENFLO(tm) PSG (with steam generation) depicted in Figures 1 & 2, and PRENFLO(tm) PDQ (direct quench) as depicted in Figures 3 & 4. The gasifier conditions and feed characteristics are similar, but PRENFLO(tm) PSG includes an integrated waste heat boiler and uses compressed recirculated quench gas as illustrated in Figure 2, resulting in relatively low moisture raw syngas at relatively high exit temperature. PRENFLO(tm) PDQ uses direct quench, resulting in considerably lower raw syngas exit temperature (200-250°C) which is saturated. Uhde notes that PDQ has lower investment cost and shorter construction and supply schedule than PSG, though this would be at the performance expense of somewhat lower thermal efficiency and slightly higher concentration of CO2 in raw syngas.

492

The hidden geometry of ocean flows  

E-Print Network (OSTI)

We introduce a new global Lagrangian descriptor that is applied to flows with general time dependence (altimetric datasets). It succeeds in detecting simultaneously, with great accuracy, invariant manifolds, hyperbolic and non-hyperbolic flow regions.

Carolina Mendoza; Ana M Mancho

2010-03-01T23:59:59.000Z

493

Deep-Flow Variability at Drake Passage  

Science Conference Proceedings (OSTI)

A rotary empirical orthogonal function analysis of the currents measured in central Drake Passage during DRAKE 79 shows that the deep (2500 m) flow has the same spatial and temporal structure as the flow at 500 m, suggesting that current ...

John M. Klinck; Eileen E. Hofmann

1986-07-01T23:59:59.000Z

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