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


1

Operating Conditions Opportunity  

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

Components in Aggressive Operating Conditions Opportunity Research is active on the patent-pending technology, titled "3-Dimensional Functionally Gradient Coatings for...

2

Electric grid operators monitoring drought conditions - Today ...  

U.S. Energy Information Administration (EIA)

Energy Information Administration ... solar, wind , geothermal ... lower water levels are a potential concern for grid operators and system planners during periods of ...

3

Conditional Probabilities, Relative Operating Characteristics, and Relative Operating Levels  

Science Conference Proceedings (OSTI)

The relative operating characteristic (ROC) curve is a highly flexible method for representing the quality of dichotomous, categorical, continuous, and probabilistic forecasts. The method is based on ratios that measure the proportions of events ...

Simon J. Mason; Nicholas E. Graham

1999-10-01T23:59:59.000Z

4

Definition: Rated Electrical Operating Conditions | Open Energy...  

Open Energy Info (EERE)

operate.1 Related Terms system References Glossary of Terms Used in Reliability Standards An LikeLike UnlikeLike You like this.Sign Up to see what your friends like. inline...

5

Electrolyzers Operating in Real-World Conditions  

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

cell subsystems * Operate in tandem for AC power generation (40-50kW) Switchgear (future Stirling Engine-55kW) Electrolyzer wdiaphragm compressor (2.7kghr) ASME certified steel...

6

LHCb Conditions Database Operation Assistance Systems  

E-Print Network (OSTI)

The Conditions Database of the LHCb experiment (CondDB) provides versioned, time dependent geometry and conditions data for all LHCb data processing applications (simulation, high level trigger, reconstruction, analysis) in a heterogeneous computing environment ranging from user laptops to the HLT farm and the Grid. These different use cases impose front-end support for multiple database technologies (Oracle and SQLite are used). Sophisticated distribution tools are required to ensure timely and robust delivery of updates to all environments. The content of the database has to be managed to ensure that updates are internally consistent and externally compatible with multiple versions of the physics application software. In this paper we describe three systems that we have developed to address these issues: - an extension to the automatic content validation done by the ďOracle StreamsĒ replication technology, to trap cases when the replication was unsuccessful; - an automated distribution process for the S...

Shapoval, Illya

2012-01-01T23:59:59.000Z

7

Membranes and MEAs for Dry, Hot Operating Conditions  

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

and MEA's and MEA's for Dry, Hot Operating Conditions - Kick off 1 3 Membranes and MEA's for Dry, Hot Operating Conditions DE-FG36-07GO17006 Steve Hamrock 3M Company February 13, 2007 2007 DOE HFCIT Kick-Off Meeting This presentation does not contain any proprietary or confidential information Membranes and MEA's for Dry, Hot Operating Conditions - Kick off 2 3 Overview 3 Timeline * Project start 1/1/07 * Project end 12/31/10 * 0% complete Barriers A. Durability B. Performance DOE Technical Targets (2010) * Durability w/cycling: > 5000 hrs, * Conductivity 0.1 S/cm @120¬ļC * Cost: $20/m 2 , Budget * Total Project funding $11.4 million - $8.9 million - DOE - $2.5 million - contractor cost share (22%) * Received in FY07: $ 0 * Case Western Reserve Univ. * Colorado School of Mines * University of Detroit Mercy

8

Simulation and Optimization of Wind Farm Operations under Stochastic Conditions  

E-Print Network (OSTI)

This dissertation develops a new methodology and associated solution tools to achieve optimal operations and maintenance strategies for wind turbines, helping reduce operational costs and enhance the marketability of wind generation. The integrated framework proposed includes two optimization models for enabling decision support capability, and one discrete event-based simulation model that characterizes the dynamic operations of wind power systems. The problems in the optimization models are formulated as a partially observed Markov decision process to determine an optimal action based on a wind turbine's health status and the stochastic weather conditions. The rst optimization model uses homogeneous parameters with an assumption of stationary weather characteristics over the decision horizon. We derive a set of closed-form expressions for the optimal policy and explore the policy's monotonicity. The second model allows time-varying weather conditions and other practical aspects. Consequently, the resulting strategy are season-dependent. The model is solved using a backward dynamic programming method. The bene ts of the optimal policy are highlighted via a case study that is based upon eld data from the literature and industry. We nd that the optimal policy provides options for cost-e ective actions, because it can be adapted to a variety of operating conditions. Our discrete event-based simulation model incorporates critical components, such as a wind turbine degradation model, power generation model, wind speed model, and maintenance model. We provide practical insights gained by examining di erent maintenance strategies. To the best of our knowledge, our simulation model is the rst discrete-event simulation model for wind farm operations. Last, we present the integration framework, which incorporates the optimization results in the simulation model. Preliminary results reveal that the integrated model has the potential to provide practical guidelines that can reduce the operation costs as well as enhance the marketability of wind energy.

Byon, Eunshin

2010-05-01T23:59:59.000Z

9

Performance assessment on continuous air monitors under real operating conditions  

Science Conference Proceedings (OSTI)

In the nuclear industry, workers may be exposed to artificial radioactive aerosols. These aerosols are generally composed of particles with a diameter measuring between 0.1 {mu}m and 10 {mu}m. To protect workers in nuclear facilities, monitors that continuously measure radioactivity in the air are used. The main function of the monitor is to provide real-time measurement of activity concentration. Measurement of aerosol activity concentration can be affected by a number of factors specific to the aerosols and the instrument. The first part of the article will present the general operating principles of continuous air monitors (CAMs) and inherent measurement difficulties, as well as the main standard tests. The second section describes the experimental ICARE facility The ICARE facility generates standard artificial and natural radioactive aerosols for calibrating continuous air monitors under real operating conditions. (authors)

Monsanglant-Louvet, C.; Liatimi, N.; Gensdarmes, F. [Inst. of Radioprotection and Nuclear Safety- IRSN, Saclay (France)

2011-07-01T23:59:59.000Z

10

Final Report - Membranes and MEA's for Dry, Hot Operating Conditions  

DOE Green Energy (OSTI)

The focus of this program was to develop a new Proton Exchange Membrane (PEM) which can operate under hotter, dryer conditions than the state of the art membranes today and integrate it into a Membrane Electrode Assembly (MEA). These MEA's should meet the performance and durability requirements outlined in the solicitation, operating under low humidification conditions and at temperatures ranging from -20√?¬?√?¬ļC to 120√?¬?√?¬ļC, to meet 2010 DOE technical targets for membranes. This membrane should operate under low humidification conditions and at temperatures ranging from -20√?¬?√?¬ļC to 120√?¬?√?¬ļC in order to meet DOE HFCIT 2010 commercialization targets for automotive fuel cells. Membranes developed in this program may also have improved durability and performance characteristics making them useful in stationary fuel cell applications. The new membranes, and the MEA√?¬Ę√?¬?√?¬?s comprising them, should be manufacturable at high volumes and at costs which can meet industry and DOE targets. This work included: A) Studies to better understand factors controlling proton transport within the electrolyte membrane, mechanisms of polymer degradation (in situ and ex situ) and membrane durability in an MEA; B) Development of new polymers with increased proton conductivity over the range of temperatures from -20√?¬?√?¬ļC to 120√?¬?√?¬ļC and at lower levels of humidification and with improved chemical and mechanical stability; C) Development of new membrane additives for increased durability and conductivity under these dry conditions; D) Integration of these new materials into membranes and membranes into MEA√?¬Ę√?¬?√?¬?s, including catalyst and gas diffusion layer selection and integration; E) Verification that these materials can be made using processes which are scalable to commercial volumes using cost effective methods; F) MEA testing in single cells using realistic automotive testing protocols. This project addresses technical barriers A (Durability) and C (Performance) from the Fuel Cells section of the 2005 Hydrogen, Fuel Cells and Infrastructure Technologies Program Multi-Year R&D Plan. In the course of this four-year program we developed a new PEM with improved proton conductivity, chemical stability and mechanical stability. We incorporated this new membrane into MEAs and evaluated performance and durability.

Hamrock, Steven J.

2011-06-30T23:59:59.000Z

11

Interphase power controller adapted to the operating conditions of networks  

Science Conference Proceedings (OSTI)

This paper introduces a new family of Interphase Power Controller (ICP) for which the useful portion of the P{sub r}-{delta}{sub sr} characteristics is shifted as the power transfer level is increased. Thus, the power characteristics of a specific IPC application can be adapted to the operating conditions of the network. The response of the IPC is compared to those of the two conventional technologies used in building it: the phase-angle regulator and series compensation. It is shown how the natural response of the IPC regulates the active power passively, without need for control action. Also, the reactive power can be controlled independently of the active power allowing for better voltage control. The new IPC retains the inherent qualities of the previous IPCs.

Brochu, J.; Beauregard, F.; Morin, G.; Pelletier, P. [CITEQ, Varennes, Quebec (Canada)] [CITEQ, Varennes, Quebec (Canada)

1995-04-01T23:59:59.000Z

12

Evaluation of Condition Assessment for Continued Reliable Operation  

Science Conference Proceedings (OSTI)

Fossil power plant operators face increasing complexity relative to long-range planning for existing fossil generation assets. With the increased focus to provide reliable and cost-effective power coupled with new and increasingly stringent existing environmental regulations, many power companies face difficult decisions regarding investment in aging assets, as opposed to building new generation units or providing ...

2013-04-26T23:59:59.000Z

13

Minimizing formation damage under adverse conditions during gravel pack operations  

Science Conference Proceedings (OSTI)

A method is described for minimizing formation damage caused by intrusive fluids prior to a gravel packing operation in loosely consolidated formations penetrated by at least one well comprising: (a) filling the casing of the well with an underbalanced completion fluid; (b) placing within the well a removable packer capable of isolating the space between the casing and the formation from the downhole well pressure; (c) setting through the packer a first tubing suitable for perforating and stabilizing the flow of fluids into the well; (d) perforating the casing; (e) introducing a blocking agent into the formation via the perforations which agent upon solidification is sufficient to minimize formation damage by avoiding the introduction of formation fluids where the agent is a gel; (f) causing the blocking agent to solidify while forming a solidified plug within the well and a solid mass within the adjacent washed out portion of the formation; (g) removing the first tubing from the well; (h) placing within the well a second tubing having a slotted portion therein sufficient to allow gravel packing of the well and the formation; (i) removing the solidified plug from the wellbore along with solidified gel from the washed-out portion of the formation; and (j) placing a gravel pack within the well and the washed-out portion of the formation via the second tubing which consolidates the formation.

Jennings, A.R. Jr.; Shu, P.

1989-03-14T23:59:59.000Z

14

Fuzzy expert system design for operating room air-condition control systems  

Science Conference Proceedings (OSTI)

In this study, a controlled fuzzy expert system (FES) was designed to provide the conditions necessary for operating rooms. For this purpose, existing operating rooms have been studied to see if there are more useful, reliable and comfortable ones. How ... Keywords: Adaptive fuzzy control, Expert systems, Fuzzy control systems, Operating room control

Nazmi Etik; Novruz Allahverdi; Ibrahim Unal Sert; Ismail Saritas

2009-08-01T23:59:59.000Z

15

Operational-Condition-Independent Criteria Dedicated to Monitoring Wind Turbine Generators: Preprint  

DOE Green Energy (OSTI)

To date the existing wind turbine condition monitoring technologies and commercially available systems have not been fully accepted for improving wind turbine availability and reducing their operation and maintenance costs. One of the main reasons is that wind turbines are subject to constantly varying loads and operate at variable rotational speeds. As a consequence, the influences of turbine faults and the effects of varying load and speed are coupled together in wind turbine condition monitoring signals. So, there is an urgent need to either introduce some operational condition de-coupling procedures into the current wind turbine condition monitoring techniques or develop a new operational condition independent wind turbine condition monitoring technique to maintain high turbine availability and achieve the expected economic benefits from wind. The purpose of this paper is to develop such a technique. In the paper, three operational condition independent criteria are developed dedicated for monitoring the operation and health condition of wind turbine generators. All proposed criteria have been tested through both simulated and practical experiments. The experiments have shown that these criteria provide a solution for detecting both mechanical and electrical faults occurring in wind turbine generators.

Yang, W.; Sheng, S.; Court, R.

2012-08-01T23:59:59.000Z

16

Matrix multiplication operations with data pre-conditioning in a high performance computing architecture  

SciTech Connect

Mechanisms for performing matrix multiplication operations with data pre-conditioning in a high performance computing architecture are provided. A vector load operation is performed to load a first vector operand of the matrix multiplication operation to a first target vector register. A load and splat operation is performed to load an element of a second vector operand and replicating the element to each of a plurality of elements of a second target vector register. A multiply add operation is performed on elements of the first target vector register and elements of the second target vector register to generate a partial product of the matrix multiplication operation. The partial product of the matrix multiplication operation is accumulated with other partial products of the matrix multiplication operation.

Eichenberger, Alexandre E; Gschwind, Michael K; Gunnels, John A

2013-11-05T23:59:59.000Z

17

Modification of boiler operating conditions for mercury emissions reductions in coal-fired utility boilers  

E-Print Network (OSTI)

Modification of boiler operating conditions for mercury emissions reductions in coal-fired utility boilers Carlos E. Romero *, Ying Li, Harun Bilirgen, Nenad Sarunac, Edward K. Levy Energy Research Center type, boiler operation, fly ash characteristics and type of environmental control equipment installed

Li, Ying

18

Prediction, operations, and condition monitoring in wind energy Andrew Kusiak a,*, Zijun Zhang b  

E-Print Network (OSTI)

Review Prediction, operations, and condition monitoring in wind energy Andrew Kusiak a,*, Zijun 2013 Available online 23 August 2013 Keywords: Wind energy Wind speed prediction Wind turbine control Condition monitoring and fault detection a b s t r a c t Recent developments in wind energy research

Kusiak, Andrew

19

Photovoltaic module and array performance characterization methods for all system operating conditions  

DOE Green Energy (OSTI)

This paper provides new test methods and analytical procedures for characterizing the electrical performance of photovoltaic modules and arrays. The methods use outdoor measurements to provide performance parameters both at standard reporting conditions and for all operating conditions encountered by typical photovoltaic systems. Improvements over previously used test methods are identified, and examples of the successful application of the methodology are provided for crystalline- and amorphous-silicon modules and arrays. This work provides an improved understanding of module and array performance characteristics, and perhaps most importantly, a straight- forward yet rigorous model for predicting array performance at all operating conditions. For the first time, the influences of solar irradiance, operating temperature, solar spectrum, solar angle-of- incidence, and temperature coefficients are all addressed in a practical way that will benefit both designers and users of photovoltaics.

King, D.L.

1996-12-31T23:59:59.000Z

20

Optimizing the operating conditions in a high precision industrial process using soft computing techniques  

Science Conference Proceedings (OSTI)

This interdisciplinary research is based on the application of unsupervized connectionist architectures in conjunction with modelling systems and on the determining of the optimal operating conditions of a new high precision industrial process known ... Keywords: exploratory projection pursuit, industrial applications, modelling systems, unsupervized learning

Emilio Corchado; Javier Sedano; Leticia Curiel; Josť R. Villar

2012-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Evaluation of Next Generation Nuclear Power Plant (NGNP) Intermediate Heat Exchanger (IHX) Operating Conditions  

DOE Green Energy (OSTI)

This report summarizes results of a preliminary evaluation to determine the operating conditions for the Next Generation Nuclear Plant (NGNP) Intermediate Heat Exchanger (IHX) that will transfer heat from the reactor primary system to the demonstration hydrogen production plant(s). The Department of Energy is currently investigating two primary options for the production of hydrogen using a high temperature reactor as the power source. These options are the High Temperature Electrolysis (HTE) and Sulfur-Iodine (SI) thermochemical hydrogen production processes. However, since the SI process relies entirely on process heat from the reactor, while the HTE process relies primarily on electrical energy with only a small amount of process heat required, the design of the IHX is dictated by the SI process heat requirements. Therefore, the IHX operating conditions were defined assuming 50 MWt is available for the production of hydrogen using the SI process. Three configurations for the intermediate loop were evaluated, including configurations for both direct and indirect power conversion systems. The HYSYS process analysis software was used to perform sensitivity studies to determine the influence of reactor outlet temperatures, intermediate loop working fluids (helium and molten salt), intermediate loop pressures, and intermediate loop piping lengths on NGNP performance and IHX operating conditions. The evaluation of NGNP performance included assessments of overall electric power conversion efficiency and estimated hydrogen production efficiency. Based on these evaluations, recommended IHX operating conditions are defined.

E. A. Harvego

2006-04-01T23:59:59.000Z

22

Online Condition Monitoring to Enable Extended Operation of Nuclear Power Plants  

SciTech Connect

Safe, secure, and economic operation of nuclear power plants will remain of strategic significance. New and improved monitoring will likely have increased significance in the post-Fukushima world. Prior to Fukushima, many activities were already underway globally to facilitate operation of nuclear power plants beyond their initial licensing periods. Decisions to shut down a nuclear power plant are mostly driven by economic considerations. Online condition monitoring is a means to improve both the safety and economics of extending the operating lifetimes of nuclear power plants, enabling adoption of proactive aging management. With regard to active components (e.g., pumps, valves, motors, etc.), significant experience in other industries has been leveraged to build the science base to support adoption for online condition-based maintenance and proactive aging management in the nuclear industry. Many of the research needs are associated with enabling proactive management of aging in passive components (e.g., pipes, vessels, cables, containment structures, etc.). This paper provides an overview of online condition monitoring for the nuclear power industry with an emphasis on passive components. Following the overview, several technology/knowledge gaps are identified, which require addressing to facilitate widespread online condition monitoring of passive components.

Meyer, Ryan M.; Bond, Leonard J.; Ramuhalli, Pradeep

2012-03-31T23:59:59.000Z

23

Impact of cool storage air-conditioning in commercial sector on power system operation in Thailand  

SciTech Connect

The results are presented from an investigation into the potential application for cool storage air-conditioning, and the resultant beneficial impact on power system operation in Thailand is discussed. Field assessment through interviews with decision makers in the identified customer groups produces results that show good potential for cool storage application. Results from a computer program used to calculate power production cost and other characteristics show that substantial benefits would also accrue to the generating utility.

Surapong, C.; Bundit, L. [Asian Inst. of Tech., Bangkok (Thailand)

1997-05-01T23:59:59.000Z

24

Apparatus and method for non-invasive diagnosis and control of motor operated valve condition  

DOE Patents (OSTI)

An apparatus compares the torque from an MOV motor with the valve displacement, and from the comparison assesses MOV operating condition. A transducer measures the vibration of the housing of an MOV. The vibrations are due to the motions of the rotating elements within the housing, which motions are directly related to the motion of the valve relative to its seat. Signal processing apparatus analyzes the vibrations to recover the rotations of the rotating elements and thus the motion of the valve plug. Lost motion can also be determined (if a lost motion connection exists) by demodulating the vibration signal and thus taking into account also the lost motion. Simultaneously, the forces applied to the valve are estimated by estimating the torque between the stator and the rotor of the motor. Such torque can be estimated from measuring the input current and voltage alone, using a forgetting factor and a correction for the forgetting factor. A signature derived from relating the torque to the valve position can be used to assess the condition of the MOV, by comparing the signature to signatures for MOVs of known conditions. The vibration analysis components generate signals that relate to the position of elements in the operator. Similarly, the torque estimator estimates the torque output by any type of electric motor, whether or not part of an MOV analysis unit. 28 figs.

Lyon, R.H.; Chai, J.; Lang, J.H.; Hagman, W.H.; Umans, S.D.; Saarela, O.J.

1997-01-14T23:59:59.000Z

25

Final Report - Advanced MEA's for Enhanced Operating Conditions, Amenable to High Volume Manufacture  

SciTech Connect

This report summarizes the work completed under a 3M/DOE contract directed at advancing the key fuel cell (FC) components most critical for overcoming the polymer electrolyte membrane fuel cell (PEMFC) performance, durability & cost barriers. This contract focused on the development of advanced ion exchange membranes & electrocatalysts for PEMFCs that will enable operation under ever more demanding automotive operating conditions & the use high volume compatible processes for their manufacture. Higher performing & more durable electrocatalysts must be developed for PEMFCs to meet the power density & lifetime hours required for FC vehicles. At the same time the amount of expensive Pt catalyst must be reduced to lower the MEA costs. While these two properties are met, the catalyst must be made resistant to multiple degradation mechanisms to reach necessary operating lifetimes. In this report, we present the work focused on the development of a completely new approach to PEMFC electrocatalyts, called nanostructured thin film (NSTF) catalysts. The carbon black supports are eliminated with this new approach which eliminates the carbon corrosion issue. The thin film nature of the catalyst significantly improves its robustness against dissolution & grain growth, preserving the surface area. Also, the activity of the NSTF for oxygen reduction is improved by over 500% compared to dispersed Pt catalyts. Finally, the process for fabricating the NSTF catalysts is consistent with high volume roll-good manufacturing & extremely flexible towards the introduction of new catalyst compositions & structures. This report documents the work done to develop new multi-element NSTF catalysts with properties that exceed pure Pt, that are optimized for use with the membranes discussed below, & advance the state-of-the-art towards meeting the DOE 2010 targets for PEMFC electrocatalysts. The work completed advances the understanding of the NSTF catalyst technology, identifies new NSTF-ternary catalyst materials for higher performance, documents enhanced durability under multiple types of accelerated tests by factors of 10x to 50x over conventional catalysts, & demonstrates their performance & durability in large area MEA FC stack tests. The PEMFC ion exchange membrane is the other key functioning FC component on which work was completed. While improvements have been made to standard PFSA type membranes, they still require humidification to achieve adequate proton conductivity & so their use at elevated temperatures & drier operating conditions is limited. Membranes with increased durability & conductivity under hotter, drier conditions allow the use of FC's in many applications, particularly automotive. Towards this goal, 2 approaches were pursued in the work reported here. The first part was designed for immediate application at drier conditions & operating temperatures between 85C and 120C, focused on the development of a membrane based on a low equivalent weight (EW), perfluorinated sulfonic acid (PFSA) ionomer for good ionic conductivity at low humidification, & the use of stabilizing additives for improved oxidative stability. The ionomer used was developed at 3M & has a shorter acid containing side-chain than the Nafionô ionomer. This ionomer also has a higher T? & higher modulus than that of a Nafionô membrane of the same EW, allowing lower EW ionomers to be prepared with very good mechanical properties. In addition, more than 50 stabilizing additives were evaluated in ex-situ, Fentonís tests & more than 10 of these were incorporated into membranes & evaluated in accelerated FC tests. This work led to thin (25-30 micron) cast membranes with substantially improved conductivity & durability under simulated automotive conditions, compared to membranes currently available. The 2nd body of membrane work was focused on developing & characterizing 3 approaches for making new PEM's for operation under hot (>120C) & dry (dew point <80C) FC conditions: inorganic materials with enhanced proton conductivity, polymer matrices swollen with lo

Debe, Mark K.

2007-09-30T23:59:59.000Z

26

Advanced spent fuel conditioning process (ACP) progress with respect to remote operation and maintenance  

Science Conference Proceedings (OSTI)

Korea Atomic Energy Research Institute (KAERI) has been developing an Advanced Spent Fuel Conditioning Process (ACP) to reduce the volume of spent fuel, and the construction of the ACP facility (ACPF) for a demonstration of its technical feasibility has been completed. In 2006 two inactive demonstrations were performed with simulated fuels in the ACPF. Accompanied by process equipment performance tests, its remote operability and maintainability were also tested during that time. Procedures for remote operation tasks are well addressed in this study and evaluated thoroughly. Also, remote maintenance and repair tasks are addressed regarding some important modules with a high priority order. The above remote handling test's results provided a lot of information such as items to be revised to improve the efficiency of the remote handling tasks. This paper deals with the current status of ACP and the progress of remote handling of ACPF. (authors)

Lee, Hyo Jik; Lee, Jong Kwang; Park, Byung Suk [NURE Lab, KAERI: 1045 Daedeokdaero, Daejeon, 305-353 (Korea, Republic of); Yoon, Ji Sup [Spent Fuel Technology Development Division, KAERI: 1045 Daedeokdaero, Daejeon, 305-353 (Korea, Republic of)

2007-07-01T23:59:59.000Z

27

Characterizing (rating) the performance of large photovoltaic arrays for all operating conditions  

DOE Green Energy (OSTI)

A new method has been developed for characterizing the electrical performance of photovoltaic arrays. The method provides both a ``rating`` at standard reporting conditions and a rigorous yet straightforward model for predicting array performance at all operating conditions. For the first time, the performance model handles the influences of irradiance, module temperature, solar spectrum, solar angle-of-incidence, and temperature coefficients, in a practical way. Validity of the procedure was confirmed during field testing of a 25-kW array recently installed by Arizona Public Service Co. on Carol Spring Mountain (which powers microwave, ceullular phone, and TV communictions equipment). This paper describes the characterization procedure, measured array performance, and the predictive model.

King, D.L. [Sandia National Labs., Albuquerque, NM (United States); Eckert, P.E. [Arizona Public Service Co., Phoenix, AZ (United States)

1996-06-01T23:59:59.000Z

28

Final Report - Advanced MEA's for Enhanced Operating Conditions, Amenable to High Volume Manufacture  

Science Conference Proceedings (OSTI)

This report summarizes the work completed under a 3M/DOE contract directed at advancing the key fuel cell (FC) components most critical for overcoming the polymer electrolyte membrane fuel cell (PEMFC) performance, durability & cost barriers. This contract focused on the development of advanced ion exchange membranes & electrocatalysts for PEMFCs that will enable operation under ever more demanding automotive operating conditions & the use high volume compatible processes for their manufacture. Higher performing & more durable electrocatalysts must be developed for PEMFCs to meet the power density & lifetime hours required for FC vehicles. At the same time the amount of expensive Pt catalyst must be reduced to lower the MEA costs. While these two properties are met, the catalyst must be made resistant to multiple degradation mechanisms to reach necessary operating lifetimes. In this report, we present the work focused on the development of a completely new approach to PEMFC electrocatalyts, called nanostructured thin film (NSTF) catalysts. The carbon black supports are eliminated with this new approach which eliminates the carbon corrosion issue. The thin film nature of the catalyst significantly improves its robustness against dissolution & grain growth, preserving the surface area. Also, the activity of the NSTF for oxygen reduction is improved by over 500% compared to dispersed Pt catalyts. Finally, the process for fabricating the NSTF catalysts is consistent with high volume roll-good manufacturing & extremely flexible towards the introduction of new catalyst compositions & structures. This report documents the work done to develop new multi-element NSTF catalysts with properties that exceed pure Pt, that are optimized for use with the membranes discussed below, & advance the state-of-the-art towards meeting the DOE 2010 targets for PEMFC electrocatalysts. The work completed advances the understanding of the NSTF catalyst technology, identifies new NSTF-ternary catalyst materials for higher performance, documents enhanced durability under multiple types of accelerated tests by factors of 10x to 50x over conventional catalysts, & demonstrates their performance & durability in large area MEA FC stack tests. The PEMFC ion exchange membrane is the other key functioning FC component on which work was completed. While improvements have been made to standard PFSA type membranes, they still require humidification to achieve adequate proton conductivity & so their use at elevated temperatures & drier operating conditions is limited. Membranes with increased durability & conductivity under hotter, drier conditions allow the use of FC's in many applications, particularly automotive. Towards this goal, 2 approaches were pursued in the work reported here. The first part was designed for immediate application at drier conditions & operating temperatures between 85C and 120C, focused on the development of a membrane based on a low equivalent weight (EW), perfluorinated sulfonic acid (PFSA) ionomer for good ionic conductivity at low humidification, & the use of stabilizing additives for improved oxidative stability. The ionomer used was developed at 3M & has a shorter acid containing side-chain than the Nafionô ionomer. This ionomer also has a higher T? & higher modulus than that of a Nafionô membrane of the same EW, allowing lower EW ionomers to be prepared with very good mechanical properties. In addition, more than 50 stabilizing additives were evaluated in ex-situ, Fentonís tests & more than 10 of these were incorporated into membranes & evaluated in accelerated FC tests. This work led to thin (25-30 micron) cast membranes with substantially improved conductivity & durability under simulated automotive conditions, compared to membranes currently available. The 2nd body of membrane work was focused on developing & characterizing 3 approaches for making new PEM's for operation under hot (>120C) & dry (dew point with enhanced proton conductivity, polymer matrices swollen with lo

Debe, Mark K.

2007-09-30T23:59:59.000Z

29

Current Conditions Risk Assessment for the 300-FF-5 Groundwater Operable Unit  

SciTech Connect

This report updates a baseline risk assessment for the 300 Area prepared in 1994. The update includes consideration of changes in contaminants of interest and in the environment that have occurred during the period of interim remedial action, i.e., 1996 to the present, as well as the sub-regions, for which no initial risk assessments have been conducted. In 1996, a record of decision (ROD) stipulated interim remedial action for groundwater affected by releases from 300 Area sources, as follows: (a) continued monitoring of groundwater that is contaminated above health-based levels to ensure that concentrations continue to decrease, and (b) institutional controls to ensure that groundwater use is restricted to prevent unacceptable exposure to groundwater contamination. In 2000, the groundwater beneath the two outlying sub-regions was added to the operable unit. In 2001, the first 5-year review of the ROD found that the interim remedy and remedial action objectives were still appropriate, although the review called for additional characterization activities. This report includes a current conditions baseline ecological and human health risk assessment using maximum concentrations in the environmental media of the 300-FF-5 Operable Unit and downstream conditions at the City of Richland, Washington. The scope for this assessment includes only current measured environmental concentrations and current use scenarios. Future environmental concentrations and future land uses are not considered in this assessment.

Miley, Terri B.; Bunn, Amoret L.; Napier, Bruce A.; Peterson, Robert E.; Becker, James M.

2007-11-01T23:59:59.000Z

30

Effects of Operating Conditions on Internal Resistances in Enzyme Fuel Cells Studied via Electrochemical Impedance Spectroscopy  

SciTech Connect

Enzyme fuel cells (EFCs) offer some advantages over traditional precious-metal-catalyzed fuel cells, such as polymer electrolyte membrane fuel cells (PEMFCs). However, EFCs exhibit far less power output than PEMFCs and have relatively short life spans before materials must be replaced. In this work, electrochemical impedance spectroscopy (EIS) is used to analyze the internal resistances throughout the EFC at a variety of operating conditions. EIS analysis is focused primarily on the resistances of the anode, solution/membrane, and cathode. Increased enzyme loading results in improved power output and reductions in internal resistance. Conditions are identified for which enzyme loading does not limit the EFC performance. EIS experiments are also reported for EFCs operated continuously for 2 days; power output declines sharply over time, while all internal resistances increase. Drying of the cathode and enzyme/mediator degradation are believed to have contributed to this behavior. Finally, experiments are performed at varying air-humidification temperatures. Little effect on internal resistances or power output is observed. However, it is anticipated that increased air humidification can improve longevity by delivering more water to the cathode. Improvements to the enzymatic cathode are needed for EFC development. These improvements need to focus on improving transport rather than increasing enzyme loading.

Aaron, D [Georgia Institute of Technology; Borole, Abhijeet P [ORNL; Yiacoumi, Sotira [Georgia Institute of Technology; Tsouris, Costas [ORNL

2012-01-01T23:59:59.000Z

31

Effect of operating conditions and membrane quality on the separation performance of composite silicalite-1 membranes  

Science Conference Proceedings (OSTI)

The separation capacity of silicalite-1 membranes for various hydrocarbon mixtures is determined as a function of membrane quality, operating conditions, and orientation of the composite membrane with respect to the feed side. The quality of the membranes is judged on the basis of the n-butane/i-butane permselectivity. Membranes with a different n-butane/i-butane permselectivity showed an identical separation capacity for ethane/methane mixtures, but the quality difference was affecting separation of hydrogen from the butane isomers. The selectivity of the membrane is significantly affected by the operating conditions, such as mixture composition, temperature, and absolute pressure. These effects are shown for ethane/methane, propene/ethene, and n-butane/i-butane mixtures. The selectivity for ethane in ethane/methane mixtures, found when the zeolite layer is facing the feed side, is completely lost when the orientation of the composite membrane is reversed, due to concentration polarization. Depending on the membrane orientation, the major resistance of the composite is in the support layer or in the zeolite layer.

Graaf, J.M. van de; Bijl, E. van der; Stol, A.; Kapteijn, F.; Moulign, J.A. [Delft Univ. of Technology (Netherlands)

1998-10-01T23:59:59.000Z

32

Smart Operations of Air-Conditioning and Lighting Systems in Government Buildings for Peak Power Reduction  

E-Print Network (OSTI)

During the summer 2007 smart operation strategies for air-conditioning (A/C) and lighting systems were developed and tested in a number of governmental buildings in Kuwait as one of the solutions to reduce the national peak demand for electrical power that commonly occur around 15:00 h. The working hours for these building are generally between 07:00 and 14:00 h and their peak demand exceeds 600 MW. The smart operation strategies implemented in these buildings included pre-closing treatment (PCT) between 13:00 and 14:00 h and time-of-day control (TDC) after 14:00 h. Also de-lamping was carried out in some of the buildings to readjust the higher than recommended illumination levels. This paper presents the achievements of implementing these smart operations strategies in Justice Palace Complex (JPC) as a case study. The peak load of this building was 3700 kW. The achievements are summarized as an all time saving of 22 kW by de-lamping, an additional saving of 27 kW through TDC of lighting, direct savings between 13:00 and 22:00 h by closing supply and return air fans of 52 air-handling units with a connected load 400 kW, and an additional saving of 550 kW during the same period by optimizing the cooling production and distribution. In conclusion project achieved an overall reduction in power demand of around 20% between 13:00 to 17:00 h and reduction ranging from 7% to 15% between 17:00 to 20:00 h.

Al-Hadban, Y.; Maheshwari, G. P.; Al-Nakib, D.; Al-Mulla, A.; Alasseri, R.

2008-10-01T23:59:59.000Z

33

Experimental and numerical study of the behavior of three-way catalytic converters under different engine operation conditions  

E-Print Network (OSTI)

The thesis reports the studies on how the three-way catalytic converters behave under different operation conditions. The main focus of the work is in the oxygen storage capacity of the three-way catalyst. Rich-to-lean ...

Zhang, Yuetao

2005-01-01T23:59:59.000Z

34

Operating space of a bidirectional PWM ac-to-dc converter applied in active line-conditioning  

Science Conference Proceedings (OSTI)

The paper presents the operating space of a bidirectional PWM ac-to-dc converter which can act also as a line conditioner. This analysis of the operating space will prove the secondary line conditioning functionality of the PWM dc converters. Starting ...

R. Paku; R. Marschalko

2008-05-01T23:59:59.000Z

35

Computational Fluid Dynamics Based Investigation of Sensitivity of Furnace Operational Conditions to Burner Flow Controls  

SciTech Connect

This is the first Semiannual Technical Report for DOE Cooperative Agreement No: DE-FC26-02NT41580. The goal of this project is to systematically assess the sensitivity of furnace operational conditions to burner air and fuel flows in coal fired utility boilers. Our approach is to utilize existing baseline furnace models that have been constructed using Reaction Engineering International's (REI) computational fluid dynamics (CFD) software. Using CFD analyses provides the ability to carry out a carefully controlled virtual experiment to characterize the sensitivity of NOx emissions, unburned carbon (UBC), furnace exit CO (FECO), furnace exit temperature (FEGT), and waterwall deposition to burner flow controls. The Electric Power Research Institute (EPRI) is providing co-funding for this program, and instrument and controls experts from EPRI's Instrument and Controls (I&C) Center are active participants in this project. This program contains multiple tasks and good progress is being made on all fronts. A project kickoff meeting was held in conjunction with NETL's 2002 Sensors and Control Program Portfolio Review and Roadmapping Workshop, in Pittsburgh, PA during October 15-16, 2002. Dr. Marc Cremer, REI, and Dr. Paul Wolff, EPRI I&C, both attended and met with the project COR, Susan Maley. Following the review of REI's database of wall-fired coal units, the project team selected a front wall fired 150 MW unit with a Riley Low NOx firing system including overfire air for evaluation. In addition, a test matrix outlining approximately 25 simulations involving variations in burner secondary air flows, and coal and primary air flows was constructed. During the reporting period, twenty-two simulations have been completed, summarized, and tabulated for sensitivity analysis. Based on these results, the team is developing a suitable approach for quantifying the sensitivity coefficients associated with the parametric tests. Some of the results of the CFD simulations of the single wall fired unit were presented in a technical paper entitled, ''CFD Investigation of the Sensitivity of Furnace Operational Conditions to Burner Flow Controls,'' presented at the 28th International Technical Conference on Coal Utilization and Fuel Systems in Clearwater, FL March 9-14, 2003. In addition to the work completed on the single wall fired unit, the project team made the selection of a 580 MW opposed wall fired unit to be the subject of evaluation in this program. Work is in progress to update the baseline model of this unit so that the parametric simulations can be initiated.

Marc Cremer; Kirsi St. Marie; Dave Wang

2003-04-30T23:59:59.000Z

36

Hydrothermal Testing of K Basin Sludge and N Reactor Fuel at Sludge Treatment Project Operating Conditions  

DOE Green Energy (OSTI)

The Sludge Treatment Project (STP), managed for the U. S. DOE by Fluor Hanford (FH), was created to design and operate a process to eliminate uranium metal from K Basin sludge prior to packaging for Waste Isolation Pilot Plant (WIPP). The STP process uses high temperature liquid water to accelerate the reaction, produce uranium dioxide from the uranium metal, and safely discharge the hydrogen. Under nominal process conditions, the sludge will be heated in pressurized water at 185įC for as long as 72 hours to assure the complete reaction (corrosion) of up to 0.25-inch diameter uranium metal pieces. Under contract to FH, the Pacific Northwest National Laboratory (PNNL) conducted bench-scale testing of the STP hydrothermal process in November and December 2006. Five tests (~50 ml each) were conducted in sealed, un-agitated reaction vessels under the hydrothermal conditions (e.g., 7 to 72 h at 185įC) of the STP corrosion process using radioactive sludge samples collected from the K East Basin and particles/coupons of N Reactor fuel also taken from the K Basins. The tests were designed to evaluate and understand the chemical changes that may be occurring and the effects that any changes would have on sludge rheological properties. The tests were not designed to evaluate engineering aspects of the process. The hydrothermal treatment affected the chemical and physical properties of the sludge. In each test, significant uranium compound phase changes were identified, resulting from dehydration and chemical reduction reactions. Physical properties of the sludge were significantly altered from their initial, as-settled sludge values, including, shear strength, settled density, weight percent water, and gas retention.

Delegard, Calvin H.; Schmidt, Andrew J.; Thornton, Brenda M.

2007-03-30T23:59:59.000Z

37

CFD Simulation of the CANDU-6 Moderator Circulation Under Normal Operating Conditions  

Science Conference Proceedings (OSTI)

A steady-state 3D simulation for predicting the local subcooling of the moderator in the vicinity of the calandria tubes in a CANDU-6 reactor is performed. For the current simulation, a set of grid structures with the same geometry as the CANDU-6 moderator tank, called 'calandria vessel', is generated and the momentum, heat and continuity equations are solved by CFX-4.3, a CFD code developed by AEA technology. The standard k-{epsilon} turbulence model associated with logarithmic wall treatment is used to model turbulence generation and dissipation within the vessel. The moderator fluid is heavy water. Buoyancy forces are modeled using the Boussinesq approximation in which density is assumed to be a linear function of temperature. The matrix of the calandria tubes in the center region of the calandria vessel is simplified by the porous media approach. The anisotropic hydraulic impedance of the calandria tubes is modeled using the frictional pressure drop correlations suggested by Idelchik and Szymanski. The heat load in this steady-state simulation is conservatively set as 103 MW of 103% full power, consisting of 96.7 MW to the core region and 6.3 MW to the reflector region. The total volumetric flow rate through eight inlet nozzles is 940 L/s and the outlet temperature is constantly 71.0 deg. C. The thermal boundary condition of the circumferential vessel wall is assumed a little heat flux out. As a result, the velocity field and temperature distribution of a CANDU-6 moderator in the operating condition are presented. The flow pattern identified in this simulation is the weak jet momentum-dominated flow, which is generated by the interaction between the buoyancy force by heating and the dominant momentum forces by inlet jets. The calculated maximum temperature of the moderator is 83.0 deg. C at the lower center region of the core, which corresponds to the minimum subcooling of 33.0 deg. C considering the boiling point increase due to the hydrostatic pressure change. (authors)

Bo Wook Rhee; Churl Yoon; Byung-Joo Min [Korea Atomic Energy Research Institute, 150, Dukjin-Dong, Yusong-Gu, Taejon 305-353 (Korea, Republic of)

2002-07-01T23:59:59.000Z

38

Initial Activation and Operation of the Power Conditioning System for the National Ignition Facility  

DOE Green Energy (OSTI)

The NIF Power Conditioning System (PCS) resides in four Capacitor Bays, supplying energy to the Master and Power Amplifiers which reside in the two adjacent laser bays. Each capacitor bay will initially house 48 individual power conditioning modules, shown in Figure 2, with space reserved for expansion to 54 modules. The National Ignition Facility (NIF) Power Conditioning System (PCS) is a modular capacitive energy storage system that will be capable of storing nearly 400 MJ of electrical energy and delivering that energy to the nearly 8000 flashlamps in the NIF laser. The first sixteen modules of the power conditioning system have been built, tested and installed. Activation of the first nine power conditioning modules has been completed and commissioning of the first ''bundle'' of laser beamlines has begun. This paper will provide an overview of the power conditioning system design and describe the status and results of initial testing and activation of the first ''bundle'' of power conditioning modules.

Newton, M A; Kamm, R E; Fulkerson, E S; Hulsey, S D; Lao, N; Parrish, G L; Pendleton, D L; Petersen, D E; Polk, M; Tuck, J M; Ullery, G T; Moore, W B

2003-08-20T23:59:59.000Z

39

Nondestructive Evaluation Improvement Focus Group Extent of Condition Actions in Response to North Anna Dissimilar Metal Weld Operating Experience  

Science Conference Proceedings (OSTI)

The Nondestructive Evaluation (NDE) Improvement Focus Group (NIFG) was formed to address NDE improvement and extent of condition actions in response to North Anna dissimilar metal weld operating experience. The operating experience occurred early in 2012 and involved the missed detection of significant flaws during ultrasonic examinations performed according to the ASME Boiler and Pressure Vessel Code, Section XI, Appendix VIII, Supplement 10. As appropriate, the NIFG products are to be ...

2013-02-15T23:59:59.000Z

40

Gunite and Associated Tanks Waste Conditioning System: Description and Operational Summary  

SciTech Connect

The purpose of this report is to describe and document the function, operational performance, problems encountered, lessons-learned, and overall assessment of the performance of the waste conditioning system (WCS) in the Gunite{trademark} and Associated Tanks (GAAT) remediation project at the Oak Ridge National Laboratory (ORNL). The GAAT are located in the main plant area of ORNL in the North and South Tank Farms. These tanks were constructed in 1943 as part of the Manhattan Project during World War II. Each tank in the South Tank Farm (STF) has a 50-ft inside diameter and a capacity of {approx}170,000 gal. Each Gunite tank in the North Tank Farm (NTF) has a 25-ft inside diameter with a capacity of {approx}44,000 gal. The GAAT were designed to receive radioactive and chemical wastes from ORNL processes. The tanks were constructed of Gunite, which is created by pneumatically spraying concrete over a wire mesh. Following construction, the site was backfilled so the domes of the tanks were covered with {approx}6 ft of earth. The STF tanks (W-5, -6, -7, -8, -9, and -10) are set in a 2 x 3 array with an east-west axis. The two GAAT in the NTF are on the north side of Central Avenue, and the STF is across the street. One additional Gunite tank, TH-4, is located {approx}300 ft east of the STF. TH-4 is a smaller, 20-ft inside diameter tank with a capacity of {approx}14,000 gal. Approximately 90% of the sludge inventory was removed from the STF tanks during a sluicing campaign in 1982-84 (Autry et al., 1990). Over 95% of the residual from the original sluicing was removed during the GAAT Remediation Project of 1997-2000. The NTF and STF tanks, as well as tank TH-4 were remediated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) with regulatory oversight by the U.S. Environmental Protection Agency (EPA) and the Tennessee Department of Environment and Conservation (TDEC).

Emison, JA

2002-03-14T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


41

Measured Impact on Space Conditioning Energy Use in a Residence Due to Operating a Heat Pump Water Heater inside the Conditioned Space  

Science Conference Proceedings (OSTI)

The impact on space conditioning energy use due to operating a heat pump water heater (HPWH) inside the conditioned space is analyzed based on 2010-2011 data from a research house with simulated occupancy and hot water use controls. The 2700 ft2 (345 m2) house is located in Oak Ridge, TN (mixed-humid climate) and is equipped with a 50 gallon (189 l) HPWH that provided approximately 55 gallons/d (208 l/d) of hot water at 120 F (46 C) to the house during the test period. The HPWH has been operated every other week from December 2010 through November 2011 in two modes; a heat pump only mode, and a standard mode that utilizes 15355 Btu/hr (4500 W) resistance heating elements. The energy consumption of the air-source heat pump (ASHP) that provides space conditioning for the house is compared for the two HPWH operating modes with weather effects taken into account. Impacts during the heating and cooling seasons are compared.

Munk, Jeffrey D [ORNL; Ally, Moonis Raza [ORNL; Baxter, Van D [ORNL

2012-01-01T23:59:59.000Z

42

Experimental Investigation on the Operation Performance of a Liquid Desiccant Air-conditioning System  

E-Print Network (OSTI)

A large share of energy consumption is taken by an air-conditioning system. It worsens the electricity load of the power network. Therefore, more and more scholars are paying attention to research on new types of air-conditioning systems that are energy- saving and environment-friendly. A liquid desiccant air conditioning system is among them, as it has a tremendous ability for power storage and low requirements for heat resources. Heat with low temperatures, such as excess heat, waste heat, and solar power, is suitable for the liquid desiccant air-conditioning system. The feasibility and economical efficiency of the system are studied in this experimental research. The result shows that when the temperature of the regeneration is about 80?, the thermodynamic coefficient of the system is about 0.6, and the supply air temperature of the air-conditioning system remains stable at 21?, the air-conditioning system can meet human comfort levels.

Liu, J.; Wang, J.; Wu, Z.; Gu, W.; Zhang, G.

2006-01-01T23:59:59.000Z

43

Analysis of Actual Operating Conditions of an Off-grid Solid Oxide Fuel Cell  

DOE Green Energy (OSTI)

Fuel cells have been proposed as ideal replacements for other technologies in remote locations such as Rural Alaska. A number of suppliers have developed systems that might be applicable in these locations, but there are several requirements that must be met before they can be deployed: they must be able to operate on portable fuels, and be able to operate with little operator assistance for long periods of time. This project was intended to demonstrate the operation of a 5 kW fuel cell on propane at a remote site (defined as one without access to grid power, internet, or cell phone, but on the road system). A fuel cell was purchased by the National Park Service for installation in their newly constructed visitor center at Exit Glacier in the Kenai Fjords National Park. The DOE participation in this project as initially scoped was for independent verification of the operation of this demonstration. This project met with mixed success. The fuel cell has operated over 6 seasons at the facility with varying degrees of success, with one very good run of about 1049 hours late in the summer of 2006, but in general the operation has been below expectations. There have been numerous stack failures, the efficiency of electrical generation has been lower than expected, and the field support effort required has been far higher than expected. Based on the results to date, it appears that this technology has not developed to the point where demonstrations in off road sites are justified.

Dennis Witmer; Thomas Johnson; Jack Schmid

2008-12-31T23:59:59.000Z

44

Computational Fluid Dynamics Based Investigation of Sensitivity of Furnace Operational Conditions to Burner Flow Controls  

SciTech Connect

This is the Final Technical Report for DOE Cooperative Agreement No: DE-FC26-02NT41580. The goal of this project was to systematically assess the sensitivity of furnace operational conditions to burner air and fuel flows in coal fired utility boilers. The focus of this project was to quantify the potential impacts of ''fine level'' controls rather than that of ''coarse level'' controls (i.e. combustion tuning). Although it is well accepted that combustion tuning will generally improve efficiency and emissions of an ''out of tune'' boiler, it is not as well understood what benefits can be derived through active multiburner measurement and control systems in boiler that has coarse level controls. The approach used here was to utilize existing baseline furnace models that have been constructed using Reaction Engineering International's (REI) computational fluid dynamics (CFD) software. Using CFD analyses provides the ability to carry out a carefully controlled virtual experiment to characterize the sensitivity of NOx emissions, unburned carbon (UBC), furnace exit CO (FECO), furnace exit temperature (FEGT), and waterwall deposition to burner air and fuel flow rates. The Electric Power Research Institute (EPRI) provided co-funding for this program, and instrument and controls experts from EPRI's Instrument and Controls (I&C) Center have been active participants in this project. CFD simulations were completed for five coal fired boilers as planned: (1) 150 MW wall fired, (2) 500 MW opposed wall fired, (3) 600 MW T-Fired, (4) 330 MW cyclone-fired, and (5) 200 MW T-Fired Twin Furnace. In all cases, the unit selections were made in order to represent units that were descriptive of the utility industry as a whole. For each unit, between 25 and 44 furnace simulations were completed in order to evaluate impacts of burner to burner variations in: (1) coal and primary air flow rate, and (2) secondary air flow rate. The parametric matrices of cases that were completed were defined in order to accommodate sensitivity analyses of the results. The sensitivity analyses provide a strategy for quantifying the rate of change of NOx or unburned carbon in the fly ash to a rate of change in secondary air or fuel or stoichiometric ratio for individual burners or groups of burners in order to assess the value associated with individual burner flow control. In addition, the sensitivity coefficients that were produced provide a basis for quantifying the differences in sensitivities for the different boiler types. In a ranking of the sensitivity of NOx emissions to variations in secondary air flow between the burners at a fixed lower furnace stoichiometric ratio in order of least sensitive to most sensitive, the results were: (1) 600 MW T-Fired Unit; (2) 500 MW Opposed Wall-Fired Unit; (3) 150 MW Wall-Fired Unit; (4) 100 MW T-Fired Unit; and (5) 330 MW Cyclone-Fired Unit.

Marc Cremer; Dave Wang; Connie Senior; Andrew Chiodo; Steven Hardy; Paul Wolff

2005-07-01T23:59:59.000Z

45

Effects of operating conditions, compression ratio, and gasoline reformate on SI engine knock limits  

E-Print Network (OSTI)

A set of experiments was performed to investigate the effects of air-fuel ratio, inlet boost pressure, hydrogen rich fuel reformate, and compression ratio on engine knock behavior. For each condition the effect of spark ...

Gerty, Michael D

2005-01-01T23:59:59.000Z

46

Issues and Factors of Train Air-conditioning System Design and Operation  

E-Print Network (OSTI)

Like a moving building, a train's outer meteorologic parameter will change a lot with the local meteorologic parameter on the way. In this paper, we put forward the design method of the typical design period and some dynamic energy-saving ways to solve the problem. These methods consider the dynamic changes of the outer environment when the train is moving, which will supply the theoretical basis for the calculation of the dynamic load and real-time running and regulation of the train's air-conditioning. Modifications to the air-conditioning system and some advanced air conditioning systems are introduced, which are helpful for system optimization. In this paper, based on analysis of the characteristics of the air - conditioning system in foreign high speed passenger cars and demands for its acceleration, developing trends for air - conditioning systems for high speed passenger cars are pointed out and some advice is put forward. Above all, we should not only satisfy the comfort need of the passengers, but also succeed in saving energy.

Liu, P.; Li, D.

2006-01-01T23:59:59.000Z

47

Mercury-cadmium-telluride focal plane array performance under non-standard operating conditions  

Science Conference Proceedings (OSTI)

This paper highlights a new technique that allows the Teledyne Scientific & Imaging LLC TCM6604A Mercury-Cadmium-Telluride (MCT) Focal Plane Array (FPA) to operate at room temperature. 12 The Teledyne MCT FPA has been a standard in Imaging Spectroscopy ...

Brandon S. Richardson; Michael L. Eastwood; Carl F. Bruce; Robert O. Green; J. B. Coles

2011-03-01T23:59:59.000Z

48

Digital protection systems response to sequence and phase components in non sinusoidal operation conditions  

Science Conference Proceedings (OSTI)

Traditional open literature about protection systems documents the use of residual currents or voltages (zero sequence components) and negative sequence components of currents or voltages to detect and protect the different power system elements against ... Keywords: digital protection systems, harmonic distortion, negative sequence, non sinusoidal operation, phase components, zero sequence

F. MartŪnez-CŠrdenas; A. Medina

2006-11-01T23:59:59.000Z

49

Condition monitoring of motor-operated valves in nuclear power plants Pierre Granjon  

E-Print Network (OSTI)

to the valve and increases radiation exposure of operators, leading to long overhaul outage and high techniques rely on the measurement of an internal mechanical quantity and require the presence of human of any internal MOV quantity. In this article, the instantaneous active power absorbed by the induction

Paris-Sud XI, Université de

50

Operation of Energy-Efficient Air-Conditioned Buildings: An Overview  

E-Print Network (OSTI)

To design an optimum HVAC airside system that provides comfort and air quality in the air-conditioned spaces with efficient energy consumption is a great challenge. This paper evaluates recent progresses of HVAC airside design for the air-conditioned spaces. The present evaluation study defines the current status, future requirements, and expectations. It has been found that, the experimental investigations should be considered in the new trend of studies, not to validate the numerical tools only, but also to provide a complete database of the airflow characteristics in the air-conditioned spaces. Based on this analysis and the vast progress of computers and associated software, the artificial intelligent technique will be a competitor candidate to the experimental and numerical techniques. Finally, the researches that relate between the different designs of the HVAC systems and energy consumption should concern with the optimization of airside design as the expected target to enhance the indoor environment.

Khalil, E. E.

2010-01-01T23:59:59.000Z

51

Rod Bundle Heat Transfer for Pressurized Water Reactors at Operating Conditions  

Science Conference Proceedings (OSTI)

Currently available heat transfer correlations for subcooled forced convection and subcooled boiling have not been validated with rod-array data at typical PWR fluid conditions. At the present time, rod bundle heat transfer processes cannot be analyzed with sufficient accuracy to make sound decisions regarding changes that might avoid an Axial Offset Anomaly (AOA).

2000-07-14T23:59:59.000Z

52

Design and construction of uniform glow discharge plasma system operating under atmospheric condition  

Science Conference Proceedings (OSTI)

The design of a uniform glow discharge plasma system operating without vacuum is presented. A full-bridge switching circuit was used to switch the transformers. The primary windings of transformers were connected in parallel, but in opposite phase to double the output voltage. Theoretically, 20 000 V{sub pp} was obtained. Rectangle copper electrodes were used, and placed parallel to each other. To prevent the spark production that is, to obtain uniformity, two 2 mm Teflon sheets were glued to the electrodes. However, it was observed that the operating frequency also affected the uniformity. For the system presented here, the frequency at which more uniformity was obtained was found to be 14 kHz.

Kocum, C.; Ayhan, H. [Biomedical Engineering Department, Baskent University, Ankara 06530 (Turkey); Chemistry Department, Biochemistry Division, Mugla University, Faculty of Science, Koetekli, 48170 Mugla (Turkey)

2007-06-15T23:59:59.000Z

53

Computational Fluid Dynamics Based Investigation of Sensitivity of Furnace Operational Conditions to Burner Flow Controls  

Science Conference Proceedings (OSTI)

As aggressive reductions in boiler emissions are mandated, the electric utility industry has been moving toward installation of improved methods of burner flow measurement and control to optimize combustion for reduced emissions. Development of cost effective controls requires an understanding of how variations in air and coal flows relate to emission rates. This project used computational fluid dynamic (CFD) modeling to quantify the impacts of variations of burner air and fuel flows on furnace operating...

2005-12-12T23:59:59.000Z

54

Overview of DOE-NE Structural Materials Research, Materials Challenges and Operating Conditions  

Science Conference Proceedings (OSTI)

This presentation summarized materials conditions for application of nanomaterials to reactor components. Material performance is essential to reactor performance, economics, and safety. A modern reactor design utilizes many different materials and material systems to achieve safe and reliable performance. Material performance in these harsh environments is very complex and many different forms of degradation may occur (often together in synergistic fashions). New materials science techniques may also help understand degradation modes and develop new manufacturing and fabrication techniques.

Maloy, Stuart A. [Los Alamos National Laboratory; Busby, Jeremy T. [ORNL

2012-06-12T23:59:59.000Z

55

Measured Performance and Analysis of Ground Source Heat Pumps for Space Conditioning and for Water Heating in a Low-Energy Test House Operated under Simulated Occupancy Conditions  

Science Conference Proceedings (OSTI)

In this paper we present measured performance and efficiency metrics of Ground Source Heat Pumps (GSHPs) for space conditioning and for water heating connected to a horizontal ground heat exchanger (GHX) loop. The units were installed in a 345m2 (3700ft2) high-efficiency test house built with structural insulated panels (SIPs), operated under simulated occupancy conditions, and located in Oak Ridge, Tennessee (USA) in US Climate Zone 4 . The paper describes distinctive features of the building envelope, ground loop, and equipment, and provides detailed monthly performance of the GSHP system. Space conditioning needs of the house were completely satisfied by a nominal 2-ton (7.0 kW) water-to-air GSHP (WA-GSHP) unit with almost no auxiliary heat usage. Recommendations for further improvement through engineering design changes are identified. The comprehensive set of data and analyses demonstrate the feasibility and practicality of GSHPs in residential applications and their potential to help achieve source energy and greenhouse gas emission reduction targets set under the IECC 2012 Standard.

Ally, Moonis Raza [ORNL; Munk, Jeffrey D [ORNL; Baxter, Van D [ORNL; Gehl, Anthony C [ORNL

2012-01-01T23:59:59.000Z

56

Plasma and operational conditions in a high species filter bucket source  

DOE Green Energy (OSTI)

Experimental details of operation and plasma flow are presented for bucket ion sources having magnetic flux that bridges the source between the regions of electron injection and ion extraction. The basic goal is to increase the atomic fraction of hydrogen and deuterium by 15% and yet retain an ion-flux-density uniformity over the extraction region to within +- 7%. A rod structure containing permanent magnets produces a known bridging flux filter across a well-defined region. This provides an experimental apparatus useful for the study of the effect of magnetic flux on the source plasma flow. The parameters of filter position, filter strength, filter orientation, arc power, and gas pressure are related to species fractions, profile uniformity, and electrical efficiency. The option of having the bridging flux without a rod structure is presented, and experimental results of sources thought to contain this field configuration are discussed.

Pincosy, P.A.; Ehlers, K.W.; Lietzke, A.F.

1986-10-01T23:59:59.000Z

57

Effect of Coal Properties and Operation Conditions on Flow Behavior of Coal Slag in Entrained Flow Gasifiers: A Brief Review  

Science Conference Proceedings (OSTI)

Integrated gasification combined cycle (IGCC) is a potentially promising clean technology with an inherent advantage of low emissions, since the process removes contaminants before combustion instead of from flue gas after combustion, as in a conventional coal steam plant. In addition, IGCC has potential for cost-effective carbon dioxide capture. Availability and high capital costs are the main challenges to making IGCC technology more competitive and fully commercial. Experiences from demonstrated IGCC plants show that, in the gasification system, low availability is largely due to slag buildup in the gasifier and fouling in the syngas cooler downstream of the gasification system. In the entrained flow gasifiers used in IGCC plants, the majority of mineral matter transforms to liquid slag on the wall of the gasifier and flows out the bottom. However, a small fraction of the mineral matter (as fly ash) is entrained with the raw syngas out of the gasifier to downstream processing. This molten/sticky fly ash could cause fouling of the syngas cooler. Therefore, it is preferable to minimize the quantity of fly ash and maximize slag. In addition, the hot raw syngas is cooled to convert any entrained molten fly slag to hardened solid fly ash prior to entering the syngas cooler. To improve gasification availability through better design and operation of the gasification process, better understanding of slag behavior and characteristics of the slagging process are needed. Slagging behavior is affected by char/ash properties, gas compositions in the gasifier, the gasifier wall structure, fluid dynamics, and plant operating conditions (mainly temperature and oxygen/carbon ratio). The viscosity of the slag is used to characterize the behavior of the slag flow and is the dominating factor to determine the probability that ash particles will stick. Slag viscosity strongly depends on the temperature and chemical composition of the slag. Because coal has varying ash content and composition, different operating conditions are required to maintain the slag flow and limit problems downstream. This report briefly introduces the IGCC process, the gasification process, and the main types and operating conditions of entrained flow gasifiers used in IGCC plants. This report also discusses the effects of coal ash and slag properties on slag flow and its qualities required for the entrained flow gasifier. Finally this report will identify the key operating conditions affecting slag flow behaviors, including temperature, oxygen/coal ratio, and flux agents.

Wang,Ping; Massoudi, Mehrdad

2011-01-01T23:59:59.000Z

58

Study of the operational conditions for anaerobic digestion of urban solid wastes  

SciTech Connect

This paper describes an experimental evaluation of anaerobic digestion technology as an option for the management of organic solid waste in developing countries. As raw material, a real and heterogeneous organic waste from urban solid wastes was used. In the first experimental phase, seed selection was achieved through an evaluation of three different anaerobic sludges coming from wastewater treatment plants. The methanization potential of these sludges was assessed in three different batch digesters of 500 mL, at two temperature levels. The results showed that by increasing the temperature to 15 deg. C above room temperature, the methane production increases to three times. So, the best results were obtained in the digester fed with a mixed sludge, working at mesophilic conditions (38-40 deg. C). Then, this selected seed was used at the next experimental phase, testing at different digestion times (DT) of 25, 20 and 18 days in a bigger batch digester of 20 L with a reaction volume of 13 L. The conversion rates were registered at the lowest DT (18 days), reaching 44.9 L/kg{sup -1} of wet waste day{sup -1}. Moreover, DT also has a strong influence over COD removal, because there is a direct relationship between solids removal inside the reactor and DT.

Castillo M, Edgar Fernando [Centro de Estudios e Investigaciones Ambientales, Universidad Industrial de Santander, Calle 9a Carrera 27, Aptdo. Aereo 678, Bucaramanga (Colombia)]. E-mail: efcastil@uis.edu.co; Cristancho, Diego Edison [Centro de Estudios e Investigaciones Ambientales, Universidad Industrial de Santander, Calle 9a Carrera 27, Aptdo. Aereo 678, Bucaramanga (Colombia); Victor Arellano, A. [Centro de Estudios e Investigaciones Ambientales, Universidad Industrial de Santander, Calle 9a Carrera 27, Aptdo. Aereo 678, Bucaramanga (Colombia)

2006-07-01T23:59:59.000Z

59

Although logging is usually highly selective, inadequate operational techniques often mean that significant  

E-Print Network (OSTI)

a public-private partnership to promote the adoption of good forest management practices in the Brazilian

60

Standard Practice for Exposure of Cover Materials for Solar Collectors to Natural Weathering Under Conditions Simulating Operational Mode  

E-Print Network (OSTI)

1.1 This practice provides a procedure for the exposure of cover materials for flat-plate solar collectors to the natural weather environment at temperatures that are elevated to approximate operating conditions. 1.2 This practice is suitable for exposure of both glass and plastic solar collector cover materials. Provisions are made for exposure of single and double cover assemblies to accommodate the need for exposure of both inner and outer solar collector cover materials. 1.3 This practice does not apply to cover materials for evacuated collectors or photovoltaics. 1.4 The values stated in SI units are to be regarded as the standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

American Society for Testing and Materials. Philadelphia

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Nonexistence of Voting Rules That Are Usually Hard to Manipulate  

E-Print Network (OSTI)

... problem for multiagent systems, and one general method for doing so is to vote over the alternatives (candidates). Unfortunately, the Gibbard-Satterthwaite theorem shows that when there are three or more candidates, all reasonable voting rules are manipulable (in the sense that there exist situations in which a voter would benefit from reporting its preferences insincerely). To circumvent this impossibility result, recent research has investigated whether it is possible to make finding a beneficial manipulation computationally hard. This approach has had some limited success, exhibiting rules under which the problem of finding a beneficial manipulation is NP- hard, #P-hard, or even PSPACE-hard. Thus, under these rules, it is unlikely that a computationally efficient algorithm can be constructed that always finds a beneficial manipulation (when it exists). However, this still does not preclude the existence of an efficient algorithm that often finds a successful manipulation (when it exists). There have been attempts to design a rule under which finding a beneficial manipulation is usually hard, but they have failed. To explain this failure, in this paper, we show that it is in fact impossible to design such a rule, if the rule is also required to satisfy another property: a large fraction of the manipulable instances are both weakly monotone, and allow the manipulators to make either of exactly two candidates win. We argue why one should expect voting rules to have this property, and show experimentally that common voting rules clearly satisfy it. We also discuss approaches for potentially circumventing this impossibility result.

Vincent Conitzer; Tuomas Sandholm

2006-01-01T23:59:59.000Z

62

Smart Operations of Air-Conditioning and Lighting Systems in a Government Buildings for Peak Power Reduction  

E-Print Network (OSTI)

This paper presents the achievements of implementing smart operations strategies for air-conditioning (A/C) and lighting systems in Justice Palace Complex (JPC), Kuwait during the summer 2007. The peak load of this building was 3700 kW. The achievements are summarized as direct savings between 13:00 and 22:00 h by closing supply and return air fans of 52 air-handling units with a connected load 400 kW, and an additional saving of 550 kW during the same period by optimizing the cooling production and distribution. Also an all time saving of 22 kW by de-lamping, and additional saving of 27 kW through TDC of lighting were achieved. In conclusion project achieved an overall reduction in power demand of around 20% between 13:00 to 17:00 h and reduction ranging from 7% to 15% between 17:00 to 20:00 h.

Al-Hadban, Y.; Maheshwari, G. P.; Al-Nakib, D.; Al-Mulla, A.; Alasseri, R.

2010-01-01T23:59:59.000Z

63

Experimental methodology for determining the system performance of fluorescent lamp, ballast, fixture combinations operating under realistic application conditions  

SciTech Connect

To meet the need for accurate performance data, an experimental method for determining the performance of lamp, ballast, and luminaire combinations operating under a broad range of realistic conditions was developed. The methodology employs a two-part experimental procedure. The first part uses a temperature-controlled luminous flux integrator to characterize the thermal performance of each lamp/ballast combination. This performance characterization is expressed in terms of light output and efficacy as a function of variations in minimum lamp wall temperature (MLWT) and is generated for the range of temperatures typically encountered in interior lighting applications. The second procedure uses a luminaire/plenum simulator to determine the specific MLWT that exists in a particular luminaire application as a function of luminaire type, mounting configuration, plenum integration, and room air temperature. The MLWTs thus measured may be used in conjunction with the lamp/ballast performance data to determine application-specific values of light output and efficacy for a given lamp/ballast/luminaire system.

Siminovitch, M.J.; Rubinstein, F.M.; Verderber, R.R.

1984-11-01T23:59:59.000Z

64

Energy Basics: Air Conditioning  

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

the same operating principles and basic components as refrigerators. Refrigerators use energy (usually electricity) to transfer heat from the cool interior of the refrigerator to...

65

Advanced Gas Turbine Guidelines: Hot Gas Path Parts Condition and Remaining Life Assessment for GE 7FA in Baseload Operation  

Science Conference Proceedings (OSTI)

Based on two years experience operating four advanced gas turbines (AGT) General Electric MS 7221 FA at Martin CC of Florida Power & Light (FP&L), this guideline describes the operating and maintenance philosophy used for baseload AGT units and the integrity of the hot path components and their remaining life. The guideline will assist utilities operating the GE MS 7221FA class AGT plan inspections and comparisons with other units in this class.

1997-04-16T23:59:59.000Z

66

Necessary conditions on entanglement catalysts  

E-Print Network (OSTI)

Given a pure state transformation $\\psi\\mapsto\\phi$ restricted to entanglement-assisted local operations with classical communication, we determine a lower bound for the dimension of a catalyst allowing that transformation. Our bound is stated in terms of the generalised concurrence monotones (the usual concurrence of two qubits is one such monotone). We further provide tools for deriving further conditions upon catalysts of pure state transformations.

Sanders, Yuval

2009-01-01T23:59:59.000Z

67

Necessary conditions on entanglement catalysts  

E-Print Network (OSTI)

Given a pure state transformation $\\psi\\mapsto\\phi$ restricted to entanglement-assisted local operations with classical communication, we determine a lower bound for the dimension of a catalyst allowing that transformation. Our bound is stated in terms of the generalised concurrence monotones (the usual concurrence of two qubits is one such monotone). We further provide tools for deriving further conditions upon catalysts of pure state transformations.

Yuval Sanders; Gilad Gour

2009-04-14T23:59:59.000Z

68

Exergy Analysis and Operational Efficiency of a Horizontal Ground Source Heat Pump System Operated in a Low-Energy Test House under Simulated Occupancy Conditions  

SciTech Connect

This paper presents data, analyses, measures of performance, and conclusions for a ground-source heat pump (GSHP) providing space conditioning to a 345m2 house whose envelope is made of structural insulated panels (SIP). The entire thermal load of this SIP house with RSI-3.7 (RUS-21) walls, triple pane windows with a U-factor of 1.64 W/m2 K (0.29 Btu/h ft2 oF) and solar heat gain coefficient (SHGC) of 0.25, a roof assembly with overall thermal resistance of about RSI-8.8 (RUS-50) and low leakage rates of 0.74 ACH at 50Pa was satisfied with a 2.16-Ton (7.56 kW) GSHP unit consuming negligible (9.83kWh) auxiliary heat during peak winter season. The highest and lowest heating COP achieved was 4.90 (October) and 3.44 (February), respectively. The highest and lowest cooling COP achieved was 6.09 (April) and 3.88 (August). These COPs are calculated on the basis of the total power input (including duct, ground loop, and control power losses ). The second Law (Exergy) analysis provides deep insight into how systemic inefficiencies are distributed among the various GSHP components. Opportunities for design and further performance improvements are identified. Through Exergy analysis we provide a true measure of how closely actual performance approaches the ideal, and it unequivocally identifies, better than energy analysis does, the sources and causes of lost work, the root cause of system inefficiencies.

Ally, Moonis Raza [ORNL; Baxter, Van D [ORNL; Munk, Jeffrey D [ORNL; Gehl, Anthony C [ORNL

2012-01-01T23:59:59.000Z

69

On Bšcklund transformations and boundary conditions associated with the quantum inverse problem for a discrete nonlinear integrable system and its connection to Baxter's Q-operator  

E-Print Network (OSTI)

A discrete nonlinear system is analysed in case of open chain boundary conditions at the ends. It is shown that the integrability of the system remains intact, by obtaining a modified set of Lax equations which automatically take care of the boundary conditions. The same Lax pair also conforms to the conditions stipulated by Sklyanin [5]. The quantum inverse problem is set up and the diagonalisation is carried out by the method of sparation of variables. B\\"{a}cklund transformations are then derived under the modified boundary conditions using the classical r-matrix . Finally by quantising the B\\"{a}cklund transformation it is possible to identify the relation satisfied by the eigenvalue of Baxter's Q-operator even for the quasi periodic situation.

A. Ghose Choudhury; A. Roy Chowdhury

2002-02-19T23:59:59.000Z

70

Performance Optimization of a Fan System- Overcoming Impacts of Modified Design Criteria Due to Regulatory Requirements and Changed Operating Conditions  

E-Print Network (OSTI)

The Louisiana Pacific mill in Tomahawk Wisconsin manufactures oriented-strand board. Several large induced-draft fans and combustion-air blowers were operating inefficiently at this mill. This case study highlights a systems approach that was applied to address fan inefficiency. Energy savings from optimizing the system are estimated to be 338 kW, nearly half of the original measured input power of 678 kW. The project is currently being implemented and will have a payback period of less than 8 months. The opportunities here are typical of opportunities thought to exist in most industrial plants. In this case, process needs changed due to environmental regulations and change of location, but the system did not, leading to low overall system efficiency.

Wroblewski, R. G.; Preis, F.; Smith, R.

1997-04-01T23:59:59.000Z

71

Air-Conditioning Basics | Department of Energy  

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

Air-Conditioning Basics Air-Conditioning Basics Air-Conditioning Basics August 16, 2013 - 1:59pm Addthis Air conditioning is one of the most common ways to cool homes and buildings. How Air Conditioners Work Air conditioners employ the same operating principles and basic components as refrigerators. Refrigerators use energy (usually electricity) to transfer heat from the cool interior of the refrigerator to the relatively warm surroundings; likewise, an air conditioner uses energy to transfer heat from the interior space to the relatively warm outside environment. An air conditioner uses a cold indoor coil called the evaporator. The condenser, a hot outdoor coil, releases the collected heat outside. The evaporator and condenser coils are serpentine tubing surrounded by aluminum fins. This tubing is usually made of copper.

72

In situ parametric study of alkali release in pulverized coal combustion: Effects of operating conditions and gas composition  

Science Conference Proceedings (OSTI)

This work concerns a parametric study of alkali release in a lab-scale, pulverized coal combustor (drop tube reactor) at atmospheric pressure. Measurements were made at steady reactor conditions using excimer laser fragmentation fluorescence (ELIF) and with direct optical access to the flue gas pipe. In this way, absolute gas-phase alkali species could be determined in situ, continuously, with sub-ppb sensitivity, directly in the flue gas. A hard coal was fired in the range 1000-1300{sup o}C, for residence times in the range 3-5 s and for air numbers {lambda} (air/fuel ratios) from 1.15 to 1.50. In addition, the amount of chlorine, water vapor and sulfur, respectively, was increased in known amounts by controlled dosing of HCl, H{sub 2}O and SO{sub 2} into the combustion gas to determine effects of these components on release or capture of the alkali species. The experimental results are also compared with values calculated using ash/fuel analyses and sequential extraction to obtain a fuller picture of alkali release in pulverized fuel combustion. 27 refs., 7 figs., 1 tab.

H. Schuermann; P.B. Monkhouse; S. Unterberger; K.R.G. Hein [Universitaet Stuttgart, Stuttgart (Germany). Institut fuer Verfahrenstechnik und Dampfkesselwesen

2007-07-01T23:59:59.000Z

73

The effect of component efficiency and operating conditions on the 50-kW dish Stirling system in Riyadh, Saudia Arabia  

Science Conference Proceedings (OSTI)

This paper deals with the development of a weather data base and the performance prediction of a 50-kW dish Stirling system. An analysis of direct solar insolation data for 1985 from the site in Riyadh, Saudi Arabia was made to determine the available solar energy. A parameter study was done of the effects of component efficiencies and operating conditions on instantaneous and yearly average system efficiency using the prepared weather data. The system performance was found to be most affected by wind, mirror reflectivity, and exact placement of the receiver in the focal point of the mirror.

Noyes, G.W. (Deutsche Forshungsanstait fur Luft-und Raumfahrt, Inst. fur Technische Thermodynamik, Pfaffenwaldrign 38-40, 7000 Stuttgart 80 (DE))

1990-11-01T23:59:59.000Z

74

Effects of acetic acid injection and operating conditions on NO emission in a vortexing fluidized bed combustor using response surface methodology  

Science Conference Proceedings (OSTI)

The effects of acetic acid injection and operating conditions on NO emission were investigated in a pilot scale vortexing fluidized bed combustor (VFBC), an integration of circular freeboard and a rectangular combustion chamber. Operating conditions, such as the stoichiometric oxygen in the combustion chamber, the bed temperature and the injecting location of acetic acid, were determined by means of response surface methodology (RSM), which enables the examination of parameters with a moderate number of experiments. In RSM, NO emission concentration after acetic acid injection and NO removal percentage at the exit of the VFBC are used as the objective function. The results show that the bed temperature has a more important effect on the NO emission than the injecting location of acetic acid and the stoichiometric oxygen in the combustion chamber. Meanwhile, the injecting location of acetic acid and the stoichiometric oxygen in the combustion chamber have a more important effect on the NO removal percentage than the bed temperature. NO emission can be decreased by injecting the acetic acid into the combustion chamber, and NO emission decreases with the height of the acetic acid injecting location above the distributor. On the other hand, NO removal percentage increases with the height of the acetic acid injecting location, and NO emission increases with the stoichiometric oxygen in the combustion chamber and the bed temperature. NO removal percentage increases with the stoichiometric oxygen, and increases first, then decreases with the bed temperature. Also, a higher NO removal percentage could be obtained at 850{sup o}C. 26 refs., 12 figs., 8 tabs.

Fuping Qian; Chiensong Chyang; Weishen Yen [Anhui University of Technology, Ma'anshan (China). School of Civil Engineering and Architecture

2009-07-15T23:59:59.000Z

75

Experimental Investigation on the Effects of Coolant Concentration on Sub-Cooled Boiling and Crud Deposition on Reactor Cladding at Prototypical PWR Operating Conditions  

SciTech Connect

Increasing demand for energy necessitates nuclear power units to increase power limits. This implies significant changes in the design of the core of the nuclear power units, therefore providing better performance and safety in operations. A major hindrance to the increase of nuclear reactor performance especially in Pressurized Deionized water Reactors (PWR) is Axial Offset Anomaly (AOA)--the unexpected change in the core axial power distribution during operation from the predicted distribution. This problem is thought to be occur because of precipitation and deposition of lithiated compounds like boric acid (H{sub 2}BO{sub 3}) and lithium metaborate (LiBO{sub 2}) on the fuel rod cladding. Deposited boron absorbs neutrons thereby affecting the total power distribution inside the reactor. AOA is thought to occur when there is sufficient build-up of crud deposits on the cladding during subcooled nucleate boiling. Predicting AOA is difficult as there is very little information regarding the heat and mass transfer during subcooled nucleate boiling. An experimental investigation was conducted to study the heat transfer characteristics during subcooled nucleate boiling at prototypical PWR conditions. Pool boiling tests were conducted with varying concentrations of lithium metaborate (LiBO{sub 2}) and boric acid (H{sub 2}BO{sub 3}) solutions in deionized water. The experimental data collected includes the effect of coolant concentration, subcooling, system pressure and heat flux on pool the boiling heat transfer coefficient. The analysis of particulate deposits formed on the fuel cladding surface during subcooled nucleate boiling was also performed. The results indicate that the pool boiling heat transfer coefficient degrades in the presence of boric acid and lithium metaborate compared to pure deionized water due to lesser nucleation. The pool boiling heat transfer coefficients decreased by about 24% for 5000 ppm concentrated boric acid solution and by 27% for 5000 ppm lithium metaborate solution respectively at the saturation temperature for 1000 psi (68.9 bar) coolant pressure. Boiling tests also revealed the formation of fine deposits of boron and lithium on the cladding surface which degraded the heat transfer rates. The boron and lithium metaborate precipitates after a 5 day test at 5000 ppm concentration and 1000 psi (68.9 bar) operating pressure reduced the heat transfer rate 21% and 30%, respectively for the two solutions.

Schultis, J., Kenneth; Fenton, Donald, L.

2006-10-20T23:59:59.000Z

76

The Oklahoma Dispersion Model: Using the Gaussian Plume Model as an Operational Management Tool for Determining Near-Surface Dispersion Conditions across Oklahoma  

Science Conference Proceedings (OSTI)

The Oklahoma Dispersion Model (ODM) represents a current innovative application of the classic Gaussian plume model in an operational setting. Utilizing a statewide mesoscale automated weather station network (the Oklahoma Mesonet) for current ...

J. D. Carlson; Derek S. Arndt

2008-02-01T23:59:59.000Z

77

Materials Reliability Program: Characterization of Type 316 Cold Worked Stainless Steel Highly Irradiated Under PWR Operating Conditions (International IASCC Advisory Committee Phase 3 Program Final Report) (MRP-214)  

Science Conference Proceedings (OSTI)

Various types of irradiation-induced material degradation such as irradiation-assisted stress corrosion cracking (IASCC), irradiation-induced void swelling, and irradiation-caused embrittlement have been observed in core internals components in pressurized water reactors (PWR). This report describes hot cell testing and characterization of bottom-mounted instrument tubes (flux thimble) that were exposed in operating PWRs for about 10 to 20 effective full power years (EFPY), providing valuable data for as...

2007-09-06T23:59:59.000Z

78

[14] DIRECT TRANSFER ELECTROPHORESIS 187 which usually takes less than an hour. The database should be monitored  

E-Print Network (OSTI)

[14] DIRECT TRANSFER ELECTROPHORESIS 187 which usually takes less than an hour. The database should MemorialScholarship, and M.S.C. by AppliedBiosystems. [14] DNA Sequencing with Direct Transfer are preparative electrophoresis methods and direct transfer electro- phoresis. ~¬įIn direct transfer

Church, George M.

79

Conference for Biomass and Energy, Copenhagen, 1996 published by Elsevier A DYNAMICS-AS-USUAL DEVELOPMENT AS BORDERCONDITION  

E-Print Network (OSTI)

9th Conference for Biomass and Energy, Copenhagen, 1996 ­ published by Elsevier 1 A DYNAMICS-AS-USUAL DEVELOPMENT AS BORDERCONDITION FOR THE IMPLEMENTATION OF GLOBAL BIOMASS ENERGY STRATEGIES G. AHAMER* , S.Read@massey.ac.nz ABSTRACT Before envisaging global strategies for enhanced use of biomass for energy, the present

Keeling, Stephen L.

80

Energy Conditions in Jordan Frame  

E-Print Network (OSTI)

The null energy condition, in its usual form, can appear to be violated by transformations in the conformal frame of the metric. We propose a generalization of the form of the null energy condition to Jordan frame, in which matter is non-minimally coupled, which reduces to the familiar form in Einstein frame. Using our version of the null energy condition, we provide a direct proof of the second law of black hole thermodynamics in Jordan frame.

Saugata Chatterjee; Damien A. Easson; Maulik Parikh

2012-12-27T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Electric grid operators monitoring drought conditions - Today ...  

U.S. Energy Information Administration (EIA)

Energy Information Administration ... A lack of adequate water flow can also limit the use of hydroelectric power due to reduced reservoir levels and stream flow.

82

JGI - Operations  

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

Operations The Operations Department sees to it that JGI has the best possible facilities and support, ensuring that its operations are conducted in accordance with the...

83

Power Operations  

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

Power Operations Outage Coordination Standards of Conduct Transmission Planning You are here: SN Home page > Power Operations Power Operations Western's Sierra Nevada Region...

84

Operations & Maintenance  

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

Rates Operations & Maintenance Operations OASIS: WACM (Note: this site is not hosted by Western and requires a digital certificate and login for full access.) wesTTrans Common...

85

Equipment design guidelines for remote hot cell operations.  

SciTech Connect

Hot cells provide a unique and challenging environment for designing remotely operated equipment. A typical hot cell is an isolated room used to protect operators from highly contaminated and radioactive equipment. Hot cells usually have thick reinforced concrete walk and leaded glass windows. Operations within the hot cell are accomplished using master-slave manipulators and overhead crane or electro-mechanical manipulator systems. The inability to perform hands-on operation and maintenance in hot cells requires special design considerations. Some of these design considerations include operational interfaces, radiation, accessibility, replaceability/interchangeability, decontamination, atmospheric conditions, functionality, operator fatigue, and ease of use. This paper will discuss guidelines for designing hot cell remotely operated equipment that has been used successfully at Argonne National Laboratory. General topics in this paper will include master-slave manipulator types and limitations, overhead handling systems, viewing limitations, types and sizes of typical fasteners, hot cell compatible materials, mockup testing, guide features for mating parts, modularity, labeling, electrical fasteners, and lifting fixtures.

Wahlquist, D. R.

1998-07-10T23:59:59.000Z

86

Analysis of the performance and space-conditioning impacts of dedicated heat-pump water heaters  

SciTech Connect

A description is given of the development and testing of the newly-marketed dedicated heat pump water heater (HPWH), and an analysis is presented of its performance and space conditioning impacts. This system utilizes an air-to-water heat pump, costs about $1000 installed, and obtains a coefficient of performance (COP) of about 2.0 in laboratory and field tests. Since a HPWH is usually installed indoors and extracts heat from the air, its operation is a space conditioning benefit if an air conditioning load exists and a penalty if a space heating load exists. To investigate HPWH performance and a space conditioning impacts, a simulation has been developed to model the thermal performance of a residence with resistance baseboard heat, air conditioning, and either heat pump or resistance water heating. The building characteristics are adapted for three US geographical areas (Madison, Wisconsin; Washington, DC; and Ft. Worth, Texas), and the system is simulated for a year with typical weather data. For each city, HPWH COPs are calculated monthly and yearly. In addition, the water heating and space conditioning energy requirements of HPWH operation are compared with those of resistance water heater operation to determine the relative performance ratio (RPR) of the HPWH. The annual simulated RPRs range from 1.5 to 1.7, which indicate a substantial space heating penalty of HPWH operation in these cities.

Morrison, L.; Swisher, J.

1980-12-01T23:59:59.000Z

87

Abstract--The reliability and quality of power distribution systems are usually affected by many different distribution faults.  

E-Print Network (OSTI)

the characteristics of tree faults, one of the major fault causes, based on the historical outage data get some general conclusions from the historical outage data, but some factors don't lead to any cover large geographical areas with substantial operation costs, aim at providing reliable, economical

Chow, Mo-Yuen

88

Conditional belief types  

E-Print Network (OSTI)

We study type spaces where a playerís type at a state is a conditional probability on the space. We axiomatize these type spaces using conditional belief operators, and examine three additional axioms of increasing strength. First, introspection, which requires the agent to be unconditionally certain of her beliefs. Second, echo, according to which the unconditional beliefs implied by the condition must be held given the condition. Third, determination, which says that the conditional beliefs are the unconditional beliefs that are conditionally certain. The echo axiom implies that conditioning on an event is the same as conditioning on the event being certain, which formalizes the standard informal interpretation of conditioning in probability theory. The echo axiom also implies that the conditional probability given an event is a prior of the unconditional probability. The game-theoretic application of our model, which we treat in the context of an example, sheds light on a number of basic issues in the analysis of extensive form games. Type spaces are closely related to the sphere models of counterfactual conditionals and to models of hypothetical knowledge, and we discuss these relationships in detail.

Alfredo Di; Tillio Joseph; Y. Halpern; Dov Samet

2013-01-01T23:59:59.000Z

89

APS Beamline Station Operational Limits Information Page  

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

Information Listed below are the conditions for a beamline to be accepting beam for CommissioningOperations. These conditions have been placed by the AOD ADD for Operations based...

90

TRANSFORMERLESS OPERATION OF DIII-D WITH HIGH BOOTSTRAP FRACTION  

SciTech Connect

OAK-B135 The authors have initiated an experimental program to address some of the questions associated with operation of a tokamak with high bootstrap current fraction under high performance conditions, without assistance from a transformer. In these discharges they have maintained stationary (or slowly improving) conditions for > 2.2 s at {beta}{sub N} {approx} {beta}{sub p} {approx} 2.8. Significant current overdrive, with dI/dt > 50 kA/s and zero or negative voltage, is sustained for over 0.7 s. The overdrive condition is usually ended with the appearance of MHD activity, which alters the profiles and reduces the bootstrap current. Characteristically these plasmas have 65%-80% bootstrap current, 25%-30% NBCD, and 5%-10% ECCD. Fully noninductive operation is essential for steady-state tokamaks. For efficient operation, the bootstrap current fraction must be close to 100%, allowing for a small additional ({approx} 10%) external current drive capability to be used for control. In such plasmas the current and pressure profiles are rightly coupled because J(r) is entirely determined by p(r) (or more accurately by the kinetic profiles). The pressure gradient in turn is determined by transport coefficients which depend on the poloidal field profile.

POLITZER,PA; HYATT,AW; LUCE,TC; MAHDAVI,MA; MURAKAMI,M; PERKINS,FW; PRATER,R; TURNBULL,AD; CASPER,TA; FERRON,JR; JAYAKUMAR,RJ; LAHAYE,RJ; LAZARUS,EA; PETTY,CC; WADE,MR

2003-07-01T23:59:59.000Z

91

OPERATIONS (OPS)  

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

OPS) OPS) OBJECTIVE OPS.1 The formality and discipline of operations is adequate to conduct work safely and programs are in place to maintain this formality and discipline. (CR 13) Scope: The Conduct of Operations Program was evaluated during the recent KE Basin FTS ORR and was found to be adequately implemented. Based on this result and the subsequent program enhancements, the scope of the review is to be limited to the SWS operating and maintenance evolutions. Criteria * Programmatic elements of conduct of operations are in place for SWS operations. (DOE Order 5480.19) * The SWS operations personnel adequately demonstrate the principles of conduct of operations requirements during the shift performance period. (DOE Order 5480.19)

92

Government Operation  

Science Conference Proceedings (OSTI)

Use Cases from NBD(NIST Big Data) Requirements WG V1.0. http://bigdatawg. nist.gov/home.php. Contents. Blank Template. Government Operation ...

2013-09-07T23:59:59.000Z

93

Operations Research  

E-Print Network (OSTI)

Mar 1, 2005 ... Operations Research. Report 2005-01. On a closedness theorem. Miklůs UjvŠri. Marc 2005. EŲtvŲs LorŠnd University of Sciences. Department†...

94

Operating Instructions  

Science Conference Proceedings (OSTI)

... The system operation is center around 3 areas of the equipment 1) Deposition chamber 2) Vaporizer 3) Chiller/cold finger ...

2013-01-18T23:59:59.000Z

95

Condition Controlling and Monitoring of Indoor Swimming Pools  

E-Print Network (OSTI)

VTT has executed a lot of research work concerning the usage, functionality and refurbishment of indoor swimming pools and spas lately. This work includes for instance detailed condition surveys, energy audits, cost analysis and maintenance planning tools. The prevailing conditions make special demands for planning, constructing, repairing and maintaining the indoor swimming pools. Main topics are usually connected with shortening of the service lives of the building parts and technical installations and the indoor air quality. Also the yearly running costs can be remarkable high. VTT has created the technical risk map for indoor swimming pool repairs. This risk map presents the most significant factors that must be taken into account in order to repair facilities successfully. Due to optimizing the operation and maintenance VTT has developed operation and maintenance manual software that is specially targeted for indoor swimming facilities. This paper presents the technical risk map, the condition survey procedure, the energy saving methods and the maintenance record book for indoor swimming facilities to secure the success of a refurbishment project.

Nissinen, K.; Kauppinen, T.; Hekkanen, M.

2004-01-01T23:59:59.000Z

96

Operations research  

Science Conference Proceedings (OSTI)

In Evita, Andrew Lloyd Webber and Tim Rice wrote: Politics, the Art of the Possible. To those of us in the operations research community, we postulate: Operations Research, the Science of Better - (i.e. better processes, better systems and better decisions). ...

William P. Pierskalla

2009-01-01T23:59:59.000Z

97

Operation crosscheck  

SciTech Connect

This report consists of three sections covering the three major areas of Lawrence Livermore Laboratory`s participation in Operation Crosscheck. These areas are: Diagnostic Aircraft; Radiochemical Sampling; and Device Assembly and Handling, Barbers Point. The information contained in these sections has been extracted from Crosscheck post-operation reports.

Gilbert, F. C.

1964-11-06T23:59:59.000Z

98

Condition Monitoring of Wind Turbines  

Science Conference Proceedings (OSTI)

Based on industry experience, after four years of operation, failures of wind turbine gearboxes, generators, and other major components become common, and each failure typically requires major repairs and/or component replacement. Wind project owners and operators who apply lube oil monitoring, vibration-signature analysis, and other condition monitoring technology can expect to detect subtle changes in machine condition that often lead to major failures if left unrepaired. The estimated cost savings of ...

2006-03-27T23:59:59.000Z

99

Boiler Condition Assessment Guideline  

Science Conference Proceedings (OSTI)

This report Boiler Condition Assessment Guideline provides a concise overview of procedures developed by the Electric Power Research Institute EPRI to help power plant operators cost-effectively determine the extent of degradation and remaining life of key boiler components. The Guideline draws from EPRIs detailed area-specific guidelines, which in turn are based on extensive research findings by EPRI, member companies, and other organizations. This Guideline offers a starting point for power plant perso...

2010-12-23T23:59:59.000Z

100

An Open Boundary Condition for Numerical Coastal Circulation Models  

Science Conference Proceedings (OSTI)

Open boundaries (OBs) are usually unavoidable in numerical coastal circulation simulations. At OBs, an appropriate open boundary condition (OBC) is required so that outgoing waves freely pass to the exterior without creating reflections back into ...

Peifeng Ma; Ole Secher Madsen

2011-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Operation Terminology  

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

Energy Conservation Magnets require a large amount of power to control a particle beam. In order to conserve energy and money when a beam line is down, Operations will install a...

102

Performance Testing Residential Heat Pump Water Heaters under South- and Central-Florida Climate Conditions: Hot, Humid Climate and Warm Ground Water Pose Unusual Operating Environment for Heat Pump Water Heaters  

Science Conference Proceedings (OSTI)

Heat pump water heaters (HPWHs) are known to provide considerable energy savings compared with electric resistance devices in many applications. However, as their performance is climate-dependent, it is important to understand their operation in extreme climates. Southern and Central Florida presents an extreme climate for HPWHs, as the air temperature, humidity, and entering water temperatures are all high nearly year-round. This report examines HPWH performance in the Florida Power & Light ...

2013-09-30T23:59:59.000Z

103

Air Conditioning | Department of Energy  

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

Conditioning Conditioning Air Conditioning July 1, 2012 - 6:28pm Addthis Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of √ā¬©iStockphoto/JaniceRichard Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ¬©iStockphoto/JaniceRichard How does it work? An air conditioner uses energy -- usually electricity -- to transfer heat from the interior of your home to the relatively warm outside environment. Two-thirds of all homes in the United States have air conditioners. Air conditioners use about 5% of all the electricity produced in the United States, at an annual cost of more than $11 billion to homeowners. As a

104

BOREAS Operations  

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

Study Area Operations/Thompson Airport (NSA-Ops) Study Area Operations/Thompson Airport (NSA-Ops) NSA Operations (NSA-Ops) The Keewatin Air Hanger: site of BOREAS Ops 1994 Dr. Piers Sellers working in Ops, 1994 BOREAS "Air Force" The NASA C-130 The University of Wyoming King Air The NASA Helicopter The NRC Twin Otter The NCAR Electra The Ontario Chieftain Back to the BOREAS Photo Page Index Other Sites: NSA Photos ||NSA-BP Photos | NSA-Fen Photos | NSA-OA Photos | NSA-OBS Photos | NSA-OJP Photos | NSA-UBS Photos | NSA-YJP Photos | NSA-Ops Photos SSA Photos || SSA-Airport Photos | SSA-Fen Photos | SSA-Mix Photos | SSA-OA Photos | SSA-OBS Photos | SSA-OJP Photos | SSA-YA Photos | SSA-YJP Photos | SSA-Ops Photos | ORNL DAAC Home || ORNL Home || NASA || Privacy, Security, Notices || Data Citation || Rate Us || Help |

105

SSA Operations  

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

Area Operations (SSA-Ops) Area Operations (SSA-Ops) "BOREAS Ops" was located at the Snodrifters Lodge, in Candle Lake, Saskatchewan. Radiosonde balloon launch at Ops The NASA Helicopter lands at Ops A meeting at the Snodrifter's Lodge Release of a radiosonde at the SSA operations center in Candle Lake. Back to the BOREAS Photo Page Index Other Sites: NSA Photos ||NSA-BP Photos | NSA-Fen Photos | NSA-OA Photos | NSA-OBS Photos | NSA-OJP Photos | NSA-UBS Photos | NSA-YJP Photos | NSA-Ops Photos SSA Photos || SSA-Airport Photos | SSA-Fen Photos | SSA-Mix Photos | SSA-OA Photos | SSA-OBS Photos | SSA-OJP Photos | SSA-YA Photos | SSA-YJP Photos | SSA-Ops Photos | ORNL DAAC Home || ORNL Home || NASA || Privacy, Security, Notices || Data Citation || Rate Us || Help | User Services - Tel: +1 (865) 241-3952 or E-mail: uso@daac.ornl.gov

106

Wavelet based analysis of circuit breaker operation  

E-Print Network (OSTI)

Circuit breaker is an important interrupting device in power system network. It usually has a lifetime about 20 to 40 years. During breaker's service time, maintenance and inspection are imperative duties to achieve its reliable operation. To automate the diagnostic practice for circuit breaker operation and reduce the utility company's workload, Wavelet based analysis software of circuit breaker operation is developed here. Combined with circuit breaker monitoring system, the analysis software processes the original circuit breaker information, speeds up the analysis time and provides stable and consistent evaluation for the circuit breaker operation.

Ren, Zhifang Jennifer

2006-05-01T23:59:59.000Z

107

Entanglement transformations using separable operations  

E-Print Network (OSTI)

We study conditions for the deterministic transformation $\\ket{\\psi}\\longrightarrow\\ket{\\phi}$ of a bipartite entangled state by a separable operation. If the separable operation is a local operation with classical communication (LOCC), Nielsen's majorization theorem provides necessary and sufficient conditions. For the general case we derive a necessary condition in terms of products of Schmidt coefficients, which is equivalent to the Nielsen condition when either of the two factor spaces is of dimension 2, but is otherwise weaker. One implication is that no separable operation can reverse a deterministic map produced by another separable operation, if one excludes the case where the Schmidt coefficients of $\\ket{\\psi}$ and are the same as those of $\\ket{\\phi}$. The question of sufficient conditions in the general separable case remains open. When the Schmidt coefficients of $\\ket{\\psi}$ are the same as those of $\\ket{\\phi}$, we show that the Kraus operators of the separable transformation restricted to the supports of $\\ket{\\psi}$ on the factor spaces are proportional to unitaries. When that proportionality holds and the factor spaces have equal dimension, we find conditions for the deterministic transformation of a collection of several full Schmidt rank pure states $\\ket{\\psi_j}$ to pure states $\\ket{\\phi_j}$.

Vlad Gheorghiu; Robert B. Griffiths

2007-05-02T23:59:59.000Z

108

Particulate Characteristics for Varying Engine Operation in a Gasoline Spark Ignited, Direct Injection Engine  

SciTech Connect

The objective of this research is a detailed investigation of particulate sizing and number count from a direct-injection spark-ignited (DISI) engine at different operating conditions. The engine is a 549 [cc] single-cylinder, four valve engine with a flat-top piston, fueled by Tier II EEE. A baseline engine operating condition, with a low number of particulates, was established and repeatability at this condition was ascertained. This baseline condition is specified as 2000 rpm, 320 kPa IMEP, 280 [įbTDC] end of injection (EOI), and 25 [įbTDC] ignition timing. The particle size distributions were recorded for particle sizes between 7 and 289 [nm]. The baseline particle size distribution was relatively flat, around 1E6 [dN/dlogDp], for particle diameters between 7 and 100 [nm], before dropping off to decreasing numbers at larger diameters. Distributions resulting from a matrix of different engine conditions were recorded. These varied parameters include load, air-to-fuel ratio (A/F), spark timing, injection timing, fuel rail pressure, and oil and coolant temperatures. Most conditions resulted with uni-modal type distributions usually with an increase in magnitude of particles in comparison to the baseline, with the exception of lean operation with retarded ignition timing. Further investigation revealed high sensitivity of the particle number and size distribution to changes in the engine control parameters. There was also a high sensitivity of the particle size distributions to small variations in A/F, ignition timing, and EOI. Investigations revealed the possibility of emissions oxidation in the exhaust and engine combustion instability at later EOI timings which therefore ruled out late EOI as the benchmark condition. Attempts to develop this benchmark revealed engine sensitivity to A/F and ignition timing, especially at later EOI operation

Farron, Carrie; Matthias, Nick; Foster, David E.; Andrie, Mike; Krieger, Roger; Najt, Paul; Narayanaswamy, Kushal; Solomon, Arun; Zelenyuk, Alla

2011-04-12T23:59:59.000Z

109

EQUIPMENT OPERATOR TRAINING IN THE AGE OF ...  

Science Conference Proceedings (OSTI)

... Two distinctively different operators, an ďExpertĒ (E) and an ďApprenticeĒ (A), were given the task to dig in the soil box under similar conditions. ...

2003-03-14T23:59:59.000Z

110

ATA operations  

Science Conference Proceedings (OSTI)

Four accelerator parameters were found to control the condition of the electron beam entering the Intergrated Fast Reactor (IFR). These parameters were the matching of the electron beam to the ion channel, the laser timing, the benzene pressure at the entrance to the IFR, and the timing of the accelerator gaps. Manipulation of these parameters make possible the control of the total current, the emittance, the pulse length, the mixture of laser induced current and cathode current, the radial growth in time, the final size of the beam, and the energy variation through the pulse. 1 fig.

Weir, J.T.; Caporaso, G.J.; Chambers, F.W.; Chong, Y.P.; Prono, D.S.; Rainer, F.

1986-06-20T23:59:59.000Z

111

SPECTR System Operational Test Report  

Science Conference Proceedings (OSTI)

This report overviews installation of the Small Pressure Cycling Test Rig (SPECTR) and documents the system operational testing performed to demonstrate that it meets the requirements for operations. The system operational testing involved operation of the furnace system to the design conditions and demonstration of the test article gas supply system using a simulated test article. The furnace and test article systems were demonstrated to meet the design requirements for the Next Generation Nuclear Plant. Therefore, the system is deemed acceptable and is ready for actual test article testing.

W.H. Landman Jr.

2011-08-01T23:59:59.000Z

112

Ice storage rooftop retrofit for rooftop air conditioning  

SciTech Connect

A significant fraction of the floor space in commercial and federal buildings is cooled by single-package rooftop air conditioning units. These units are located on flat roofs and usually operate during the day under hot conditions. They are usually less energy efficient than a chiller system for building cooling. Several U.S. companies are developing systems that employ ice storage in conjunction with chillers to replace older, inefficient rooftop units for improved performance and minimal use of on-peak electricity. Although the low evaporator temperatures needed for ice making tend to reduce the efficiency of the chiller, the overall operating costs of the ice storage system may be lower than that of a packaged, conventional rooftop installation. One version of this concept, the Roofberg{reg_sign} System developed by the Calmac Corporation, was evaluated on a small building at Oak Ridge National Laboratory in Oak Ridge, Tennessee. The Roofberg system consists of a chiller, an ice storage tank, and one or more rooftop units whose evaporator coils have been adapted to use a glycol solution for cooling. The ice storage component decouples the cooling demand of the building from the operation of the chiller. Therefore, the chiller can operate at night (cooler, more efficient condensing temperatures) to meet a daytime cooling demand. This flexibility permits a smaller chiller to satisfy a larger peak cooling load. Further, the system can be operated to shift the cooling demand to off-peak hours when electricity from the utility is generated more efficiently and at lower cost. This Roofberg system was successfully installed last year on a small one-story office building in Oak Ridge and is currently being operated to cool the building. The building and system were sufficiently instrumented to allow a determination of the performance and efficiency of the Roofberg system. Although the energy efficiency of a simulated Roofberg storage/chiller concept operating in the full storage mode was about equal to what could be expected through a simple rooftop efficiency upgrade, the operating costs for the Roofberg system could be much more favorable depending on the utility rate structure. The ability of Roofberg to move much of the cooling load to off-peak periods enables it to take advantage of on-peak demand charges and time-of-use electricity rates. The Roofberg system, as installed, was able to reduce the on-peak energy use of the cooling system to 35% of the on-peak energy consumption of the baseline system. A comparative analysis of a rooftop replacement and Roofberg indicated that the Roofberg system on Building 2518 would be the better economic choice over a range of demand charges and on-off peak energy prices which are typical of utility rate tariffs for commercial buildings.

Tomlinson, J.J. [Oak Ridge National Lab., TN (United States); Jennings, L.W. [Univ. of Tennessee, Knoxville (United States)

1997-09-01T23:59:59.000Z

113

Operated device estimation framework  

E-Print Network (OSTI)

Protective device estimation is a challenging task because there are numerous protective devices present in a typical distribution system. Among various protective devices, auto-reclosers and fuses are the main overcurrent protection on distribution systems. Operation of a protective device in response to a particular fault condition depends upon the protective deviceís operating behavior and coordination of various such protective devices. This thesis presents the design and implementation of a protective device estimation algorithm which helps in identifying which protective devices have operated to clear a short circuit condition. The algorithm uses manufacturerís device details, power quality data measured from substation monitoring devices and power system event features estimated using existing DFA algorithms. The proposed technique can be used to evaluate coordination of these protective devices and helps in locating a fault in a distribution system feeder. This approach is independent of feeder topology and could be readily used for any distribution system. The effectiveness of this algorithm is verified by simulated and actual test data. Suggestions are included for future research and application by electric utilities.

Rengarajan, Janarthanan

2008-12-01T23:59:59.000Z

114

Grid operators' newest nightmare: managing low-demand periods  

Science Conference Proceedings (OSTI)

As more renewable energy resources are added in many parts of the world, a new and even more daunting challenge is likely to face grid operators in the future - how to get through the minimum demand periods. This is especially a problem in systems where the difference between the daytime peak, usually in the early to late summer afternoons, and minimum load, usually in the late evening and early morning hours, is significant.

NONE

2009-08-15T23:59:59.000Z

115

San Francisco Operations Office  

Office of Legacy Management (LM)

San Francisco Operations Office San Francisco Operations Office 1333 Broadway Oakland, California 94612 Dr. Joseph 0. Ward, Chief Radiological Health Section Department of Health Services 744 P Street Sacramento, California, 95814 SUBJECT: Certification Docket of Gilman Hall Dear Dr. Ward: The Department of Energy (DOE) has completed and reviewed the remedial ac- tions of Gilman Hall located at the University of California, Berkeley, California. Based on this review, DOE certifies that the condition of Gilman Hall is radiologically acceptable for restricted use under the con- trols of the University of California's State General License 1333-62 pro- vided that the University's Office of Environmental Health and Safety con- tinues to survey Gilman Hall and monitor whenever remodeling or renovation

116

Novel Magnetic Material Operates under Extreme Stress Conditions...  

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

oxide insulator composed of nickel, manganese, lanthanum, and oxygen atoms where electron mobility is limited. While most transition-metal monoxides do not possess net...

117

Transmission eigenvalues for elliptic operators  

E-Print Network (OSTI)

A reduction of the transmission eigenvalue problem for multiplicative sign-definite perturbations of elliptic operators with constant coefficients to an eigenvalue problem for a non-selfadjoint compact operator is given. Sufficient conditions for the existence of transmission eigenvalues and completeness of generalized eigenstates for the transmission eigenvalue problem are derived. In the trace class case, the generic existence of transmission eigenvalues is established.

Michael Hitrik; Katsiaryna Krupchyk; Petri Ola; Lassi Pšivšrinta

2010-07-03T23:59:59.000Z

118

Impact of Operating Factors on Boiler Availability  

Science Conference Proceedings (OSTI)

As utilities strive to achieve higher reliability and lower operation and maintenance (O&M) costs for their fossil-fired power plants, changing plant operating conditions will provide even greater challenges in meeting those objectives. This report summarizes the cause and effect relationships that exist between operating conditions and boiler component reliability. It is an initial step in developing the tools and technology that will enable utilities to meet their objectives in an ever more competitive...

2000-12-19T23:59:59.000Z

119

Office of Business Operations  

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

Operations HSS Logo Office of Business Operations Reports to the Office of Resource Management Director's Message Welcome to the Office of Business Operations Richard D....

120

Operations Strategic Plan  

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

Operations Strategic Plan Updated July 2009 Operations Organization Chief Operating Officer (COO) Deputy COO Environment, Health & Safety EH&S Facilities FAC Project Management...

Note: This page contains sample records for the topic "usual operating conditions" 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

Experimental and theoretical investigations of Cs-Ba vapor tacitron inverter for power conditioning in space power systems  

SciTech Connect

The operation characteristics of the Cs-Ba tacitron as a switch are investigated experimentally in three modes: (a) breakdown mode, (b) I-V mode, and (c) current modulation mode. The switching frequency, grid potentials for ignition and extinguishing of discharge, and the Cs pressure and emission conditions (Ba pressure and emitter temperature) for stable current modulation are determined. The experimental data is also used to determine the off-time required for successful ignition, and the effects of the aforementioned operation parameters on the ignition duty cycle threshold for stable modulation. Operation parameters measured include switching frequency up to 20 kHz, hold-off voltage up to 180 V, current densities in excess of 15 A/cm[sup 2], switch power density of 1 kW/cm[sup 2]. and a switching efficiency in excess of 90% at collector C: realer than 30 V. The voltage drop strongly depends on the Cs pressure and to a lesser extent on the emission conditions. Increasing the Cs pressure and/or the emission current lowers the voltage drop, however, for the same initial Cs pressure and emission conditions, the voltage drop in the I-V mode is usually lower than that during current modulation. As long as the discharge current is kept lower that the.emission current, the voltage drop during stable current modulation could be as low as 3 V.

El-Genk, M.; Murray, C.; Wernsman, B.

1993-01-01T23:59:59.000Z

122

Operations Directorate (OPS Directorate)  

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

Operations Directorate (OPS Directorate) Operations Directorate (OPS Directorate) Purpose A group chartered by the Associate Laboratory Director for the Advanced Photon Source that includes the responsible Division Directors and other appropriate APS operations personnel. The Operations Directorate collectively coordinates operating decisions that affect the facility as a whole and establishes both long- and short-term schedules, including scheduled maintenance and facility improvement periods. The Operations Directorate is the APS forum in which decisions regarding operations are discussed: These include, but are not limited to: Safety issues related to operations Operational Schedule Global operating parameters within the defined and approved operational and safety envelopes, such as energy, maximum circulating beam

123

Parabolic systems with coupled boundary conditions  

E-Print Network (OSTI)

We consider elliptic operators with operator-valued coefficients and discuss the associated parabolic problems. The unknowns are functions with values in a Hilbert space $W$. The system is equipped with a general class of coupled boundary conditions of the form $f_{|\\partial\\Omega}\\in \\mathcal Y$ and $\\frac{\\partial f}{\\partial \

Stefano Cardanobile; Delio Mugnolo

2008-12-19T23:59:59.000Z

124

Overview of KSTAR initial operation  

Science Conference Proceedings (OSTI)

Since the successful first plasma generation in the middle of 2008, three experimental campaigns were successfully made for the KSTAR device, accompanied with a necessary upgrade in the power supply, heating, wall-conditioning and diagnostic systems. KSTAR was operated with the toroidal magnetic field up to 3.6 T and the circular and shaped plasmas with current up to 700 kA and pulse length of 7 s, have been achieved with limited capacity of PF magnet power supplies. The mission of the KSTAR experimental program is to achieve steady-state operations with high performance plasmas relevant to ITER and future reactors. The first phase (2008 2012) of operation of KSTAR is dedicated to the development of operational capabilities for a super-conducting device with relatively short pulse. Development of start-up scenario for a super-conducting tokamak and the understanding of magnetic field errors on start-up are one of the important issues to be resolved. Some specific operation techniques for a super-conducting device are also developed and tested. The second harmonic pre-ionization with 84 and 110 GHz gyrotrons is an example. Various parameters have been scanned to optimize the pre-ionization. Another example is the ICRF wall conditioning (ICWC), which was routinely applied during the shot to shot interval. The plasma operation window has been extended in terms of plasma beta and stability boundary. The achievement of high confinement mode was made in the last campaign with the first neutral beam injector and good wall conditioning. Plasma control has been applied in shape and position control and now a preliminary kinetic control scheme is being applied including plasma current and density. Advanced control schemes will be developed and tested in future operations including active profiles, heating and current drives and control coil-driven magnetic perturbation.

Kwon, M. [National Fusion Research Institute, Daejon, South Korea; Oh, Y. K. [National Fusion Research Institute, Daejon, South Korea; Yang, H. L. [National Fusion Research Institute, Daejon, South Korea; Na, H. K. [National Fusion Research Institute, Daejon, South Korea; Kim, Y. S. [National Fusion Research Institute, Daejon, South Korea; Kwak, J. G. [National Fusion Research Institute, Daejon, South Korea; Kim, W. C. [National Fusion Research Institute, Daejon, South Korea; Kim, J. Y. [National Fusion Research Institute, Daejon, South Korea; Ahn, Joonwook [ORNL; Ahn, J.W. [Oak Ridge National Laboratory (ORNL); Bae, Y. S. [National Fusion Research Institute, Daejon, South Korea; Baek, S. H. [National Fusion Research Institute, Daejon, South Korea; Bak, J. G. [National Fusion Research Institute, Daejon, South Korea; Bang, E. N. [National Fusion Research Institute, Daejon, South Korea; Chang, C. S. [Korea Advanced Institute of Science and Technology; Chang, D. H. [Korea Atomic Energy Research Institute; Chavdarovski, I. [National Fusion Research Institute, Daejon, South Korea; Chen, Z. Y. [National Fusion Research Institute, Daejon, South Korea; Cho, K. W. [National Fusion Research Institute, Daejon, South Korea; Cho, M. H. [Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea; Choe, W. [Korea Advanced Institute of Science and Technology; Choi, J. H. [National Fusion Research Institute, Daejon, South Korea; Chu, Y. [National Fusion Research Institute, Daejon, South Korea; Chung, K. S. [Hanyang University, Korea; Diamond, P. H. [University of California, San Diego; Do, H. J. [National Fusion Research Institute, Daejon, South Korea; Eidietis, N. W. [General Atomics, San Diego; England, A. C. [National Fusion Research Institute, Daejon, South Korea; Grisham, L. [Princeton Plasma Physics Laboratory (PPPL); Hahm, T. S. [Princeton Plasma Physics Laboratory (PPPL); Hahn, S. H. [National Fusion Research Institute, Daejon, South Korea; Han, W. S. [National Fusion Research Institute, Daejon, South Korea; Hatae, T. [Japan Atomic Energy Agency (JAEA); Hillis, D. L. [Oak Ridge National Laboratory (ORNL); Hong, J. S. [National Fusion Research Institute, Daejon, South Korea; Hong, S. H. [National Fusion Research Institute, Daejon, South Korea

2011-01-01T23:59:59.000Z

125

Silica gel sorption properties under adiabatic conditions  

DOE Green Energy (OSTI)

The SERI Sorption Test Facility was modified from isothermal operation to adiabatic operating conditions so that we could measure the adsorption/desorption characteristics of silica-gel-coated, parallel-channel geometry as a function of operating conditions and aspect ratio under adiabatic conditions. We performed single-blow experiments on two single-passage test cells with different aspect ratios, air flow rates, and inlet conditions. Both adsorption and desorption runs were performed. As the air flow rate and aspect ratio increase when other parameters are kept constant, the desiccant matrix loses its sorption capacity faster. The test cell operated near isothermal conditions rather than adiabatically because the cell walls had a large thermal mass compared with the amount of desiccant used. Since constructing single-passage test cells with small thermal masses that can be operated adiabatically at the Sorption Test Facility is difficult, further testing at this facility will be primarily for isothermal operation. The adiabatic experiments can best be done with multipassage test cells having small thermal masses relative to desiccant mass. A single-blow test facility for performing experiments with multipassage test cells was fabricated in FY 1984, and experiments were performed in an FY 1985 desiccant project.

Pesaran, A.A.; Choudhury, K.

1986-02-01T23:59:59.000Z

126

Extending quantum operations  

SciTech Connect

For a given set of input-output pairs of quantum states or observables, we ask the question whether there exists a physically implementable transformation that maps each of the inputs to the corresponding output. The physical maps on quantum states are trace-preserving completely positive maps, but we also consider variants of these requirements. We generalize the definition of complete positivity to linear maps defined on arbitrary subspaces, then formulate this notion as a semidefinite program, and relate it by duality to approximative extensions of this map. This gives a characterization of the maps which can be approximated arbitrarily well as the restriction of a map that is completely positive on the whole algebra, also yielding the familiar extension theorems on operator spaces. For quantum channel extensions and extensions by probabilistic operations we obtain semidefinite characterizations, and we also elucidate the special case of Abelian inputs or outputs. Finally, revisiting a theorem by Alberti and Uhlmann, we provide simpler and more widely applicable conditions for certain extension problems on qubits, and by using a semidefinite programming formulation we exhibit counterexamples to seemingly reasonable but false generalizations of the Alberti-Uhlmann theorem.

Heinosaari, Teiko [Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku (Finland); Jivulescu, Maria A. [Department of Mathematics, University Politehnica Timisoara, 300006 Timisoara (Romania); Reeb, David; Wolf, Michael M. [Department of Mathematics, Technische Universitaet Muenchen, 85748 Garching (Germany)

2012-10-15T23:59:59.000Z

127

Semiclassical energy conditions  

E-Print Network (OSTI)

We present and develop several nonlinear energy conditions suitable for use in the semiclassical regime. In particular, we consider the recently formulated "flux energy condition" (FEC), and the novel "trace-of-square" (TOSEC) and "determinant" (DETEC) energy conditions. As we shall show, these nonlinear energy conditions behave much better than the classical linear energy conditions in the presence of semiclassical quantum effects. Moreover, whereas the quantum extensions of these nonlinear energy conditions seem to be quite widely satisfied as one enters the quantum realm, analogous quantum extensions are generally not useful for the linear classical energy conditions.

Martin-Moruno, Prado

2013-01-01T23:59:59.000Z

128

Uncertain generalized aggregation operators  

Science Conference Proceedings (OSTI)

The aim of this paper is to extend the generalized ordered weighted averaging operator and provide a new class of operators called the uncertain generalized ordered weighted averaging (UGOWA) operator. It provides a very general formulation that includes ... Keywords: Aggregation, Decision making, Generalized mean, OWA operator, Operator weights

Li-Gang Zhou; Hua-You Chen; Josť M. Merigů; Anna M. Gil-Lafuente

2012-01-01T23:59:59.000Z

129

Disruption Management | Operations Research between planning ...  

E-Print Network (OSTI)

in the airline industry, production management and logistics. At the department .... the status of the system forming the basis for operation is monitored. 4 .... In addition hereto airlines regularly face restrictive weather conditions, maintenance .

130

Modular Lattice for $C_{o}$-Operators.  

E-Print Network (OSTI)

We study modularity of the lattice Lat $(T)$ of closed invariant subspaces for a $C_0$-operator $T$ and find a condition such that Lat $(T)$ is a modular. Furthermore, we provide a quasiaffinity preserving modularity.

Yun-Su Kim

131

Electric Vehicle Site Operator Program  

DOE Green Energy (OSTI)

Kansas State University, with funding support from federal, state, public, and private companies, is participating in the Department of Energy's Electric Vehicle Site Operator Program. Through participation is this program, Kansas State is demonstrating, testing, and evaluating electric or hybrid vehicle technology. This participation will provide organizations the opportunity to examine the latest EHV prototypes under actual operating conditions. KSU proposes to purchase one (1) electric or hybrid van and four (4) electric cars during the first two years of this five year program. KSU has purchased one G-Van built by Conceptor Industries, Toronto, Canada and has initiated a procurement order to purchase two (2) Soleq 1992 Ford EVcort stationwagons.

Not Available

1992-01-01T23:59:59.000Z

132

Heat Transfer Operators Associated with Quantum Operations  

E-Print Network (OSTI)

Any quantum operation applied on a physical system is performed as a unitary transformation on a larger extended system. If the extension used is a heat bath in thermal equilibrium, the concomitant change in the state of the bath necessarily implies a heat exchange with it. The dependence of the average heat transferred to the bath on the initial state of the system can then be found from the expectation value of a hermitian operator, which is named as the heat transfer operator (HTO). The purpose of this article is the investigation of the relation between the HTOs and the associated quantum operations. Since, any given quantum operation on a system can be realized by different baths and unitaries, many different HTOs are possible for each quantum operation. On the other hand, there are also strong restrictions on the HTOs which arise from the unitarity of the transformations. The most important of these is the Landauer erasure principle. This article is concerned with the question of finding a complete set of restrictions on the HTOs that are associated with a given quantum operation. An answer to this question has been found only for a subset of quantum operations. For erasure operations, these characterizations are equivalent to the generalized Landauer erasure principle. For the case of generic quantum operations however, it appears that the HTOs obey further restrictions which cannot be obtained from the entropic restrictions of the generalized Landauer erasure principle.

«. Aksak; S. Turgut

2010-02-03T23:59:59.000Z

133

Air Conditioning | Department of Energy  

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

and basic components as refrigerators. Refrigerators use energy (usually electricity) to transfer heat from the cool interior of the refrigerator to the relatively warm...

134

Battery conditioning system having communication with battery parameter memory means in conJunction with battery conditioning  

SciTech Connect

This patent describes a battery conditioning system. It comprises: rechargeable battery means for supplying operating current during a number of hours of portable operation so as to become progressively discharged as a result, memory and communications means for operative association with the rechargeable battery means and receiving power from the rechargeable battery means during portable operation, and battery conditioning system means for coupling with the rechargeable batter means and with the memory and communications means, for conditioning of the battery means after a period of portable operation and for the transmission of data concerning the rechargeable battery means.

Koenck, S.E.

1989-12-05T23:59:59.000Z

135

Air Carrier Flight Operations  

E-Print Network (OSTI)

Most air carriers operate under a system of prioritized goals including safety, customer service (on-time departures and arrivals) and operating economics. The flight operations department is responsible for the safe and ...

Midkif, Alan H.

136

Cloud-Resolving Ensemble Simulations of Mediterranean Heavy Precipitating Events: Uncertainty on Initial Conditions and Lateral Boundary Conditions  

Science Conference Proceedings (OSTI)

This study assesses the impact of uncertainty on convective-scale initial conditions (ICs) and the uncertainty on lateral boundary conditions (LBCs) in cloud-resolving simulations with the Application of Research to Operations at Mesoscale (AROME)...

BenoÓt Viť; Olivier Nuissier; Vťronique Ducrocq

2011-02-01T23:59:59.000Z

137

A conserved Parity Operator  

E-Print Network (OSTI)

The symmetry of Nature under a Space Inversion is described by a Parity operator. Contrary to popular belief, the Parity operator is not unique. The choice of the Parity operator requires several arbitrary decisions to be made. It is shown that alternative, equally plausible, choices leads to the definition of a Parity operator that is conserved by the Weak Interactions. The operator commonly known as CP is a more appropriate choice for a Parity operator.

Mark J Hadley

2004-06-24T23:59:59.000Z

138

Operating Experience Summaries  

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

Operating Experience Summaries The Office of Health, Safety and Security (HSS) Office of Analysis publishes the Operating Experience Summary to exchange lessons-learned information...

139

ARM - NSA Operations  

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

Images Information for Guest Scientists Contacts NSA Operations Barrow Facility Instrumentation at the Barrow facility operates 7 days a week, 24 hours a day, year around. The...

140

Power Plant Practices to Ensure Cable Operability  

Science Conference Proceedings (OSTI)

Installation practices as well as environmental conditions affect the operability of electrical cables in power plants. This report evaluates operability criteria for nuclear power plant cables, good practices for cable installation, and cable maintenance and surveillance. As a reference source for utility practices, this report suggests potential improvements that could benefit the industry.

1992-05-02T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Cw rf operation of the FMIT RFQ  

SciTech Connect

The 80-MHz RFQ for the Fusion Materials Irradiation Test Facility prototype accelerator has been rf conditioned for cw operation to the design field level of 17.5 MV/m (1.68 x Kilpatrick limit). Experimental results and operating experience will be discussed.

Fazio, M.V.; Brandeberry, F.E.

1985-01-01T23:59:59.000Z

142

Air Conditioning and lungs  

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

Air Conditioning and lungs Name: freeman Status: NA Age: NA Location: NA Country: NA Date: Around 1993 Question: What affect does air conditioning have upon the lungs of the...

143

Study of the Lateral Boundary Condition Temporal Resolution Problem and a Proposed Solution by Means of Boundary Error Restarts  

Science Conference Proceedings (OSTI)

To properly utilize coupled limited-area models (LAMs), the time scales of the cross-boundary fluxes in the available lateral boundary data must be assessed. In current operational practice, the update frequencies of these data are usually ...

Piet Termonia; Alex Deckmyn; Rafiq Hamdi

2009-10-01T23:59:59.000Z

144

Fundamental mechanisms in flue gas conditioning  

Science Conference Proceedings (OSTI)

We performed a wide variety of laboratory analyses during the past quarter. As with most of the work we performed during the previous quarter, our recent efforts were primarily directed toward the determination of the effects of adsorbed water on the cohesivity and tensile strength of powders. We also continued our analyses of dust cake ashes that have had the soluble compounds leached from their particle surfaces by repeated washings with water. Our analyses of leached and unleached dust cake ashes continued to provide some interesting insights into effects that compounds adsorbed on surfaces of ash particles can have on bulk ash behavior. As suggested by our literature review, our data indicate that water adsorption depends on particle morphology and on surface chemistry. Our measurements of tensile strength show, that for many of the samples we have analyzed a relative minimum in tensile strength exists for samples conditioned and tested at about 30% relative humidity. In our examinations of the effects of water conditioning on sample cohesivity, we determined that in the absence of absorption of water into the interior of the particles, cohesivity usually increases sharply when environments having relative humidities above 75% are used to condition and test the samples. Plans are under way to condition selected samples with (NH[sub 4])[sub 2]SO[sub 4], NH[sub 4]HSO[sub 4], CaCl[sub 2], organosiloxane, and SO[sub 3]. Pending approval, we will begin these conditioning experiments, and subsequent analyses of the conditioned samples.

Snyder, T.R.; Bush, P.V.

1993-01-20T23:59:59.000Z

145

Operating and Maintaining Your Heat Pump | Department of Energy  

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

Operating and Maintaining Your Heat Pump Operating and Maintaining Your Heat Pump Operating and Maintaining Your Heat Pump June 24, 2012 - 3:22pm Addthis Changing filters regularly is an important part of maintaining a heat pump system. | Photo courtesy of √ā¬©iStockphoto/BanksPhotos Changing filters regularly is an important part of maintaining a heat pump system. | Photo courtesy of ¬©iStockphoto/BanksPhotos What does this mean for me? Learn to operate and maintain your heat pump system properly to maximize energy and money savings. You can do many operational and maintenance tasks yourself. Proper operation of your heat pump will save energy. Do not set back the heat pump's thermostat if it causes the backup heating to come on -- backup heating systems are usually more expensive to operate. Continuous indoor

146

Operator pencil passing through a given operator  

E-Print Network (OSTI)

Let $\\Delta$ be a linear differential operator acting on the space of densities of a given weight $\\lo$ on a manifold $M$. One can consider a pencil of operators $\\hPi(\\Delta)=\\{\\Delta_\\l\\}$ passing through the operator $\\Delta$ such that any $\\Delta_\\l$ is a linear differential operator acting on densities of weight $\\l$. This pencil can be identified with a linear differential operator $\\hD$ acting on the algebra of densities of all weights. The existence of an invariant scalar product in the algebra of densities implies a natural decomposition of operators, i.e. pencils of self-adjoint and anti-self-adjoint operators. We study lifting maps that are on one hand equivariant with respect to divergenceless vector fields, and, on the other hand, with values in self-adjoint or anti-self-adjoint operators. In particular we analyze the relation between these two concepts, and apply it to the study of $\\diff(M)$-equivariant liftings. Finally we briefly consider the case of liftings equivariant with respect to the algebra of projective transformations and describe all regular self-adjoint and anti-self-adjoint liftings.

A. Biggs; H. M. Khudaverdian

2013-01-28T23:59:59.000Z

147

NIST: Methane Symmetry Operations  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. Version History Methane Symmetry Operations. JT Hougen Optical Technology Division Gloria Wiersma ...

2010-10-05T23:59:59.000Z

148

Transmission eigenvalues for operators with constant coefficients  

E-Print Network (OSTI)

In this paper we study the interior transmission problem and transmission eigenvalues for multiplicative perturbations of linear partial differential operator of order $\\ge 2$ with constant real coefficients. Under suitable growth conditions on the symbol of the operator and the perturbation, we show the discreteness of the set of transmission eigenvalues and derive sufficient conditions on the existence of transmission eigenvalues. We apply these techniques to the case of the biharmonic operator and the Dirac system. In the hypoelliptic case we present a connection to scattering theory.

Michael Hitrik; Katsiaryna Krupchyk; Petri Ola; Lassi Pšivšrinta

2010-04-28T23:59:59.000Z

149

ARM - SGP Operations  

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

Operations Operations SGP Related Links Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Fact Sheet Images Information for Guest Scientists Contacts SGP Operations Routine Operations SGP central facility offices. SGP central facility offices. The overwhelming majority of the measurements with the highest priority, on which the existing experimental designs are based, are regular routine observations, as specified in the ARM Program Plan, 1990 (U.S. Department of Energy 1990). Scientifically and logistically, routine operations also serve as the basis and background for all nonroutine operations, including

150

Field Operations Program - Honda Insight Hybrid Electric Vehicle...  

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

both Urban and Freeway drive cycles, each conducted at four operating scenarios that mix minimum and maximum payloads with different auxiliary (e.g., lights, air conditioning)...

151

Improved Bottomhole Pressure Control for Underbalanced Drilling Operations.  

E-Print Network (OSTI)

??Maintaining underbalanced conditions from the beginning to the end of the drilling process is necessary to guarantee the success of jointed-pipe underbalanced drilling (UBD) operationsÖ (more)

Perez-Tellez, Carlos

2003-01-01T23:59:59.000Z

152

Definition: Operating Reserve | Open Energy Information  

Open Energy Info (EERE)

Operating Reserve Operating Reserve Jump to: navigation, search Dictionary.png Operating Reserve That capability above firm system demand required to provide for regulation, load forecasting error, equipment forced and scheduled outages and local area protection. It consists of spinning and non-spinning reserve.[1] View on Wikipedia Wikipedia Definition In electricity networks, the operating reserve is the generating capacity available to the system operator within a short interval of time to meet demand in case a generator goes down or there is another disruption to the supply. Most power systems are designed so that, under normal conditions, the operating reserve is always at least the capacity of the largest generator plus a fraction of the peak load. The operating reserve

153

Necessary and Sufficient Conditions for Optimal Offers in Electricity Markets  

Science Conference Proceedings (OSTI)

In this paper, we consider the optimal policy for a generator offering power into a wholesale electricity market operating under a pool arrangement. Anderson and Philpott [Math. Oper. Res., 27 (2002), pp. 82--100] recently discussed necessary ... Keywords: electricity markets, necessary conditions, optimal offer, sufficient conditions

Edward J. Anderson; Huifu Xu

2002-04-01T23:59:59.000Z

154

General Hormander and Mikhlin conditions for multipliers of Besov spaces  

E-Print Network (OSTI)

Here a new condition for the geometry of Banach spaces is introduced and the operator--valued Fourier multiplier theorems in weighted Besov spaces are obtained. Particularly, connections between the geometry of Banach spaces and Hormander-Mikhlin conditions are established. As an application of main results the regularity properties of degenerate elliptic differential operator equations are investigated.

Shahmurov, Rishad

2008-01-01T23:59:59.000Z

155

Terms and Conditions  

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

Terms and Conditions Terms and Conditions Terms and Conditions As a premier national research and development laboratory, LANL seeks to do business with qualified companies that offer value and high quality products and services. Contact Small Business Office (505) 667-4419 Email Use information below as guideline to doing business An "Appendix SFA-1" contains FAR and DEAR Clauses that are incorporated by reference into a particular subcontract. "Exhibit A General Conditions" are the general terms and conditions applicable to a particular subcontract. Note: The contents of the SFA-1 and Exhibit A (below) are not the only terms and conditions that will be in a LANS subcontract but represent the terms that generally do not change in a particular type of procurement. The

156

Central Air Conditioning | Department of Energy  

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

Central Air Conditioning Central Air Conditioning Central Air Conditioning May 30, 2012 - 8:01pm Addthis Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of √ā¬©iStockphoto/DonNichols. Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of ¬©iStockphoto/DonNichols. What does this mean for me? Central air conditioning systems are thermostatically controlled and convenient to use. Central air conditioning systems must be installed properly to operate efficiently. Central air conditioning systems can share ductwork with your heating system. Central air conditioners circulate cool air through a system of supply and return ducts. Supply ducts and registers (i.e., openings in the walls,

157

Experimental and theoretical investigations of Cs-Ba vapor tacitron inverter for power conditioning in space power systems. Annual report, April 15, 1992--April 14, 1993  

SciTech Connect

The operation characteristics of the Cs-Ba tacitron as a switch are investigated experimentally in three modes: (a) breakdown mode, (b) I-V mode, and (c) current modulation mode. The switching frequency, grid potentials for ignition and extinguishing of discharge, and the Cs pressure and emission conditions (Ba pressure and emitter temperature) for stable current modulation are determined. The experimental data is also used to determine the off-time required for successful ignition, and the effects of the aforementioned operation parameters on the ignition duty cycle threshold for stable modulation. Operation parameters measured include switching frequency up to 20 kHz, hold-off voltage up to 180 V, current densities in excess of 15 A/cm{sup 2}, switch power density of 1 kW/cm{sup 2}. and a switching efficiency in excess of 90% at collector C: realer than 30 V. The voltage drop strongly depends on the Cs pressure and to a lesser extent on the emission conditions. Increasing the Cs pressure and/or the emission current lowers the voltage drop, however, for the same initial Cs pressure and emission conditions, the voltage drop in the I-V mode is usually lower than that during current modulation. As long as the discharge current is kept lower that the.emission current, the voltage drop during stable current modulation could be as low as 3 V.

El-Genk, M.; Murray, C.; Wernsman, B.

1993-01-01T23:59:59.000Z

158

Headquarters Security Operations | Department of Energy  

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

Headquarters Security Operations Headquarters Security Operations Headquarters Security Operations Mission The Office of Headquarters Security Operations strengthens national security by protecting personnel, facilities, property, classified information, and sensitive unclassified information for DOE Headquarters facilities in the National Capital Area under normal and abnormal (i.e., emergency) conditions; managing access authorization functions; ensuring that executives and dignitaries are fully protected, and supporting efforts to ensure the continuity of government in all circumstances as mandated by Presidential Decision Directive. The Office is the database owner for the principal personnel security information processing activities of the Department and personnel security administrative review process.

159

Operations Authorization Assessment Plan | Department of Energy  

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

Operations Authorization Assessment Plan Operations Authorization Assessment Plan Operations Authorization Assessment Plan Performance Objective: The objective of this assessment is to verify there is documentation in place which accurately describes the safety envelope for a facility, program or project. Criteria: Conditions and requirements should be established to ensure programs addressing all applicable functional areas are adequately implemented to support safe performance of the work. The extent of documentation and level of authority for agreement shall be tailored to the complexity and hazards associated with the work. Personnel shall be responsible and accountable for performance of work in accordance with the controls established. Operations-Authorization.doc More Documents & Publications

160

Movements in air conditioning.  

E-Print Network (OSTI)

??Movements in Air Conditioning is a collection of poems that explores the obstacles inherent in creating a new sense of home in a country thatÖ (more)

Hitt, Robert D. (Robert David)

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

CONDUCT OF OPERATIONS (CO)  

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

CONDUCT OF OPERATIONS (CO) CONDUCT OF OPERATIONS (CO) OBJECTIVE TA-55 SST Facility NNSA ORR Implementation Plan 1 1 CO.1 The formality and discipline of operations is adequate to conduct work safely and programs are inplace to maintain this formality and discipline. (Core Requirement 13) Criteria 1. Programmatic elements of conduct of operations are in place for TA-55 SST operations. 2. The TA-55 SST operations personnel adequately demonstrate the principles of conduct ofoperations requirements during the shift performance period. Approach Record Reviews: Review procedures and other facility documents to verify compliance with conduct of operations principles. Interviews: Interview a sampling of the TA-55 SST associated personnel to validate their understanding of the conduct of operations principles (e.g., procedure usage,

162

Transforming Commercial Building Operations  

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

Transforming Commercial Building Operations Transforming Commercial Building Operations Transforming Commercial Building Operations Ron Underhill Pacific Northwest National Laboratory ronald.underhill@pnnl.gov (509)375-9765 April 4, 2013 2 | Building Technologies Office eere.energy.gov * Most buildings are not commissioned (Cx) before occupancy, including HVAC and lighting systems * Buildings often are poorly operated and maintained leading to significant energy waste of 5 to 20%, even when they have building automation systems (BASs)

163

Transforming Commercial Building Operations  

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

Transforming Commercial Building Operations Transforming Commercial Building Operations Transforming Commercial Building Operations Ron Underhill Pacific Northwest National Laboratory ronald.underhill@pnnl.gov (509)375-9765 April 4, 2013 2 | Building Technologies Office eere.energy.gov * Most buildings are not commissioned (Cx) before occupancy, including HVAC and lighting systems * Buildings often are poorly operated and maintained leading to significant energy waste of 5 to 20%, even when they have building automation systems (BASs)

164

NSLS Operations & Engineering  

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

Operations & Engineering Electrical Equipment Controls & Diagnostics Computer Systems Power Systems Mechanical Design Mechanical Tech Utilities Vacuum Work Planning & Controls...

165

Operating Procedures and Control  

Science Conference Proceedings (OSTI)

...The principal operating variables are: Distance from inner cone of oxy-fuel gas flames or from air-fuel

166

Furnace Design and Operation  

Science Conference Proceedings (OSTI)

...S. Lampman, Energy-Efficient Heat-Treating Furnace Design and Operation, Heat Treating, Vol 4, ASM Handbook, ASM International,

167

Simplified Space Conditioning  

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

Simplified Space Conditioning Simplified Space Conditioning Duncan Prahl, RA IBACOS, Inc. Building America Technical Update April 29, 2013 Simplified Space Conditioning Rethinking HVAC Design * Traditional Method - Assume envelope losses dictate the load - Room by room load analysis - Pick Equipment and distribute to meet the load in each room * New Method - Consider how the occupants live in the building - Seriously consider internal gains in both heating and cooling - Consider ventilation strategy - Design system Simplified Space Conditioning If you are: * A production builder * Participating in "above code" programs * Following ACCA Manual RS or ASHRAE 55 * Need to prove "delivering heat to each habitable room" * Concerned about litigation * Play it safe, Use Manual J, S & D and condition every

168

STANDARD OPERATING PROTOCOLS FOR DECOMMISSIONING  

SciTech Connect

Decommissioning projects at Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) sites are conducted under project-specific decision documents, which involve extensive preparation time, public comment periods, and regulatory approvals. Often, the decision documents must be initiated at least one year before commencing the decommissioning project, and they are expensive and time consuming to prepare. The Rocky Flats Environmental Technology Site (RFETS) is a former nuclear weapons production plant at which hazardous substances and wastes were released or disposed during operations. As a result of the releases, RFETS was placed on the National Priorities List in 1989, and is conducting cleanup activities under a federal facilities compliance agreement. Working closely with interested stakeholders and state and federal regulatory agencies, RFETS has developed and implemented an improved process for obtaining the approvals. The key to streamlining the approval process has been the development of sitewide decision documents called Rocky Flats Cleanup Agreement Standard Operating Protocols or ''RSOPs.'' RSOPs have broad applicability, and could be used instead of project-specific documents. Although no two decommissioning projects are exactly the same and they may vary widely in contamination and other hazards, the basic steps taken for cleanup are usually similar. Because of this, using RSOPs is more efficient than preparing a separate project-specific decision documents for each cleanup action. Over the Rocky Flats cleanup life cycle, using RSOPs has the potential to: (1) Save over 5 million dollars and 6 months on the site closure schedule; (2) Eliminate preparing one hundred and twenty project-specific decision documents; and (3) Eliminate writing seventy-five closure description documents for hazardous waste unit closure and corrective actions.

Foss, D. L.; Stevens, J. L.; Gerdeman, F. W.

2002-02-25T23:59:59.000Z

169

Definition: Diagnosis & Notification Of Equipment Condition | Open Energy  

Open Energy Info (EERE)

Diagnosis & Notification Of Equipment Condition Diagnosis & Notification Of Equipment Condition Jump to: navigation, search Dictionary.png Diagnosis & Notification Of Equipment Condition Diagnosis and notification of equipment condition is defined as on-line monitoring and analysis of equipment, its performance, and operating environment in order to detect abnormal conditions (e.g., high number of equipment operations, temperature, or vibration). Asset managers and operations personnel can then be automatically notified to respond to conditions that increase the probability of equipment failure.[1] Related Terms sustainability References ‚ÜĎ SmartGrid.gov 'Description of Functions' An LikeLike UnlikeLike You like this.Sign Up to see what your friends like. inline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Diagnosis_%26_Notification_Of_Equipment_Condition&oldid=502541"

170

Pilot plant environmental conditions (OPDD Appendix C)  

DOE Green Energy (OSTI)

This is Appendix C to the Pilot Plant Overall Plant design description document for the 10-MW pilot central receiver plant to be located at Barstow, California. The environmental design criteria to be used for plant design day performance, operational limits, and survival environmental limits are specified. Data are presented on insolation, wind, temperature, and other meteorological conditions. (WHK)

Randall, C.M.; Whitson, M.E.; Coggi, J.V.

1978-08-15T23:59:59.000Z

171

Cost Sensitive Conditional Planning  

E-Print Network (OSTI)

While POMDPs provide a general platform for conditional planning under a wide range of quality metrics they have limited scalability. On the other hand, uniform probability conditional planners scale very well, but many lack the ability to optimize plan quality metrics. We present an innovation to planning graph based heuristics that helps uniform probability conditional planners both scale and generate high quality plans when using actions with non uniform costs. We make empirical comparisons with two state of the art planners to show the benefit of our techniques.

Daniel Bryce; Subbarao Kambhampati

2005-01-01T23:59:59.000Z

172

STATUS OF THE NIF POWER CONDITIONING SYSTEM  

DOE Green Energy (OSTI)

The NIF Power Conditioning System provides the pulsed excitation required to drive flashlamps in the laser's optical amplifiers. Modular in design, each of the 192 Main Energy Storage Modules (MESMs) storage up to 2.2 MJ of electrical energy in its capacitor bank before delivering the energy to 20 pairs of flashlamps in a 400 {micro}s pulse (10% power points). The peak current of each MESM discharge is 0.5 MA. Production, installation, commissioning and operation of the NIF Power Conditioning continue to progress rapidly, with the goals of completing accelerated production in late 2007 and finishing commissioning by early 2008, all the while maintaining an aggressive operations schedule. To date, more than 80% of the required modules have been assembled, shipped and installed in the facility, representing more that 240 MJ of stored energy available for driving NIF flashlamps. The MESMs have displayed outstanding reliability during daily, multiple-shift operations.

Arnold, P; Hulsey, S; Ullery, G; Petersen, D; Pendleton, D; Ollis, C; Newton, M

2007-07-26T23:59:59.000Z

173

ARM - Measurement - Surface condition  

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

condition condition ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Surface condition State of the surface, including vegetation, land use, surface type, roughness, and such; often provided in model output. Categories Surface Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments NAV : Navigational Location and Attitude SURFLOG : SGP Surface Conditions Observations by Site Technicians S-TABLE : Stabilized Platform MET : Surface Meteorological Instrumentation

174

Terms and Conditions  

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

Terms and Conditions Terms and Conditions R&D Overview 100G Testbed Testbed Description Testbed Results Current Testbed Research Proposal Process Terms and Conditions Virtual Circuits (OSCARS) Performance (perfSONAR) Tools Development Green Networking Authentication & Trust Federation (ATF) Partnerships Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Terms and Conditions Researchers must provide ESnet copies of any articles, presentations, and publications based on testbed research for posting on the ESnet Testbed web site. All publications based on work conducted on the testbed must include the following statement:

175

Anemometry in Icing Conditions  

Science Conference Proceedings (OSTI)

The accuracy of wind measurements in icing conditions is discussed, and wind tunnel calibrations as well as field comparisons are presented for three heated anemometers that use different measuring principles. It is pointed out that ice-free ...

Lasse Makkonen; Pertti Lehtonen; Lauri Helle

2001-09-01T23:59:59.000Z

176

Exponential Conditional Volatility Models  

E-Print Network (OSTI)

- relation function (ACF) is less straightforward than it is for a GARCHmodel, analytic expressions can be obtained and these expressions are more general. Speci?cally, formulae for the ACF of the (absolute values of ) the observations raised to any power can... proposes an exponential link function for the conditional mean in gamma and Weibull distributions. As well as setting out the conditions for the asymptotic theory to be valid, expressions for moments, ACFs and multi-step forecasts are derived. Leverage...

Harvey, Andrew

2010-08-24T23:59:59.000Z

177

Buildings Operations and ETS Exposure  

E-Print Network (OSTI)

Mechanical systems are used in buildings to provide conditioned air, dissipate thermal loads, dilute contaminants, and maintain pressure differences. The characteristics of these systems and their operations have implications for the exposures of workers to environmental tobacco smoke (ETS) and for the control of these exposures. This review describes the general features of building ventilation systems and the efficacy of ventilation for controlling contaminant concentrations. Ventilation can reduce the concentration of ETS through dilution, but central heating, ventilating, and air conditioning (HVAC) can also move air throughout a building that has been contaminated by ETS. An understanding of HVAC systems is needed to develop models for exposures of workers to ETS.- Environ Health Perspect 107(Suppl 2):313-317 (1999).

John D. Spengler

1998-01-01T23:59:59.000Z

178

If You Usually Eat This White Bread  

E-Print Network (OSTI)

drain away) Lean meats, such as ground round (also, eat chicken and fish often) Low-fat or nonfat milk you save for a dish of fruit) Hamburger (hold the mayonnaise) and baked beans (for less fat nutrient retention) Frozen vegetables (fewer nutrients lost in processing) Broiled meats (watch the fat

Gering, Jon C.

179

Site Operator Program  

DOE Green Energy (OSTI)

Collectively, the organizations participating in the Site Operator Program have over forty years of EV experience and have operated electric vehicles (EVs) for over 600,000 miles, providing the most extensive EV operating and knowledge base in the country. The Site Operator Program is intended to provide financial and technical support and organizational resources to organizations active in the advancement of electric vehicles. Support is provided for the demonstration of vehicles and the test and evaluation of vehicles, components, and batteries. Support is also provided for the management and support of the program for the participating organizations. The Program provides a forum for participants to exchange information among the group, as well as with vehicle and equipment manufacturers and suppliers, and the public. A central data base at the Idaho National Engineering Laboratory provides a repository for-data on the vehicles being operated by the Program participants. Data collection emphasis is in the areas of operations, maintenance, and life cycle costs.

Warren, J.F.

1991-01-01T23:59:59.000Z

180

Site Operator Program  

DOE Green Energy (OSTI)

Collectively, the organizations participating in the Site Operator Program have over forty years of EV experience and have operated electric vehicles (EVs) for over 600,000 miles, providing the most extensive EV operating and knowledge base in the country. The Site Operator Program is intended to provide financial and technical support and organizational resources to organizations active in the advancement of electric vehicles. Support is provided for the demonstration of vehicles and the test and evaluation of vehicles, components, and batteries. Support is also provided for the management and support of the program for the participating organizations. The Program provides a forum for participants to exchange information among the group, as well as with vehicle and equipment manufacturers and suppliers, and the public. A central data base at the Idaho National Engineering Laboratory provides a repository for-data on the vehicles being operated by the Program participants. Data collection emphasis is in the areas of operations, maintenance, and life cycle costs.

Warren, J.F.

1991-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

www.cesos.ntnu.no Author Centre for Ships and Ocean Structures Offshore Wind Turbine Operation  

E-Print Network (OSTI)

1 www.cesos.ntnu.no Author ­ Centre for Ships and Ocean Structures Offshore Wind Turbine Operation Structures Outline · Introduction · Wind Turbine Operational Conditions · Wind Turbine Operation under Atmospheric Icing · Wind Turbine Operation under Fault Condition · Conclusions www.cesos.ntnu.no M. Etemaddar

N√łrv√•g, Kjetil

182

Operating Procedures Guideline  

Science Conference Proceedings (OSTI)

The intention of this report is to provide guidance for generating stationsí management and personnel striving for successful methods of developing effective operating procedures. Standard operating procedure management is used in most businesses and industries to assist in the safe and efficient operation of those companies. Effectively managing the program is essential in order to comply with mandatory regulations, maintain the highest possible level of plant integrity, minimize human ...

2012-12-12T23:59:59.000Z

183

Updated Operations Assessment Guideline  

Science Conference Proceedings (OSTI)

The Operations Assessment Guideline (OAG) can be used to assess the organization and processes of operations departments. An internal utility team or third party can use this report to guide a team composed of industry experts and members of the assessed utility. This report is an update to EPRI report 1008520, Operations Assessment Guideline, published in March 2005. This improved version includes insights gained after three years of experience with the original report.

2008-03-25T23:59:59.000Z

184

Battery conditioning system having communication with battery parameter memory means in conjunction with battery conditioning  

SciTech Connect

In an exemplary embodiment, a battery conditioning system monitors battery conditioning and includes a memory for storing data based thereon; for example, data may be stored representative of available battery capacity as measured during a deep discharge cycle. With a microprocessor monitoring battery operation of a portable unit, a measure of remaining battery capacity can be calculated and displayed. Where the microprocessor and battery conditioning system memory are permanently secured to the battery so as to receive operating power therefrom during storage and handling, the performance of a given battery in actual use can be accurately judged since the battery system can itself maintain a count of accumulated hours of use and other relevant parameters. In the case of a non-portable conditioning system, two-way communication may be established with a memory associated with the portable unit so that the portable unit can transmit to the conditioning system information concerning battery parameters (e.g. rated battery capacity) and/or battery usage (e.g. numbers of shallow discharge and recharge cycles), and after a conditioning operation, the conditioning system can transmit to the portable unit a measured value of battery capacity, for example. 27 figs.

Koenck, S.E.

1994-01-11T23:59:59.000Z

185

Operations Cost Allocation Project  

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

Operations Consolidation Project Operations Consolidation Project Operations Consolidation Project (OCP) Cost Allocation Presentation - September 20, 2011 OCP Cost Allocation Customer Presentation List of Acronyms OCP Cost Allocation Spreadsheets OCP Cost Allocation Customer Presentation - Questions and Answers - September 19 - 20, 2011 Additional Questions and Answers Customer Comments/Questions and Answers: Arizona Municipal Power Users Association Arizona Power Authority Central Arizona Project Colorado River Commission Colorado River Energy Distributors Association City of Gilbert, AZ Irrigation and Electrical Districts Association of Arizona Town of Marana, AZ City of Mesa, AZ Town of Wickenburg, AZ Western's Final Decision Regarding the Long-Term Cost Allocation Methodology for Operations Staff Costs

186

Pipeline Operations Program (Louisiana)  

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

The Pipeline Operations Program regulates the construction, acquisition, abandonment and interconnection of natural gas pipelines, as well as, the transportation and use of natural gas supplies.

187

Bevalac Operations, 1989  

Science Conference Proceedings (OSTI)

This report discusses the following topics in relation to the Bevalac accelerator: accelerator technology operations summary; nuclear science; biomedical research; and publications and presentations.

Not Available

1990-06-01T23:59:59.000Z

188

SERIES B: Operations Research  

E-Print Network (OSTI)

Tokyo Institute of Technology. SERIES B: Operations ... Department of Computer Science, The University of Electro-Communications,. Chofugaoka, Chofu-Shi†...

189

HQ - Human Resources Operations  

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

HQs Human Recources Operations delivers services, including position management, recruitment, staffing and classification, and reduction in force at Headquarters.† Click the "Contacts" Link to find...

190

The Emergency Response Operations  

Science Conference Proceedings (OSTI)

... ICS Incident Command System ... Trade Center Disaster: The Con Ed Substation in World ... operations, FDNY, NYPD, and fire ground positioning of ...

191

PLATO administers operator training  

SciTech Connect

Baltimore Gas and Electric Co. is committed to an in-depth training program for substation operators. For the past two years, one important part of the training program has been a computer-based educational system with a CRT touch-response graphic display that is interactive with the trainee. This system, known as PLATO, reproduces a training situation so realistic that the operator becomes completely involved with the lesson. When used for pretraining prior to substation operating experience, it provides a hands-on insight into operating practices without jeopardizing personnel or equipment, or degrading customer service.

Buehner, R.E.

1979-02-15T23:59:59.000Z

192

Chemistry Department Operations  

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

Procedures (c). Laser Safety Information: (d). Chemistry Department Laser Safety Guidelines Operational Work Planning (a). Training waiver (b). Staff Shop Posting Local...

193

Operating Oak Ridge's "Calutrons"  

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

Operating Oak Ridge's "Calutrons" The following Oral History is taken from The Manhattan Project - The Birth of the Atomic Bomb in the Words of Its Creators, Eyewitnesses, and...

194

Fuel conditioning facility material accountancy  

SciTech Connect

The operation of the Fuel conditioning Facility (FCF) is based on the electrometallurgical processing of spent metallic reactor fuel. It differs significantly, therefore, from traditional PUREX process facilities in both processing technology and safeguards implications. For example, the fissile material is processed in FCF only in batches and is transferred within the facility only as solid, well-characterized items; there are no liquid steams containing fissile material within the facility, nor entering or leaving the facility. The analysis of a single batch lends itself also to an analytical relationship between the safeguards criteria, such as alarm limit, detection probability, and maximum significant amount of fissile material, and the accounting system`s performance, as it is reflected in the variance associated with the estimate of the inventory difference. This relation, together with the sensitivity of the inventory difference to the uncertainties in the measurements, allows a thorough evaluation of the power of the accounting system. The system for the accountancy of the fissile material in the FCF has two main components: a system to gather and store information during the operation of the facility, and a system to interpret this information with regard to meeting safeguards criteria. These are described and the precision of the inventory closure over one batch evaluated.

Yacout, A.M.; Bucher, R.G.; Orechwa, Y.

1995-08-01T23:59:59.000Z

195

ECWEBTermsandConditions.doc  

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

US DEPARTMENT OF ENERGY US DEPARTMENT OF ENERGY ELECTRONIC COMMERCE PROCEDURES, TERMS AND CONDITIONS Version 1.0 May 1, 1998 PROCEDURES What follows prescribes the general procedures and policies to be followed when Electronic Data Interchange (EDI) is used for transmitting requests for quote, quotations, purchase orders, or other business information in lieu of creating one or more paper documents normally associated with conducting business with the Government. See the Terms and Conditions section below for a list of the standard FAR (Federal Acquisition Regulation) and DEAR (Department of Energy Acquisition Regulation) clauses and provisions mandated to be included in Government contracting actions. The Terms and Conditions together with any clauses specified in the specific contract transaction,

196

Design of JET ELM control coils for operation at 350 degrees C  

Science Conference Proceedings (OSTI)

A study has confirmed the feasibility of designing, fabricating and installing resonant magnetic field perturbation (RMP) coils in JET(1) with the objective of controlling edge localized modes (ELM). A system of two rows of in-vessel coils, above the machine midplane, has been chosen as it not only can investigate the physics of and achieve the empirical criteria for ELM suppression, but also permits variation of the spectra allowing for comparison with other experiments. These coils present several engineering challenges. Conditions in JET necessitate the installation of these coils via remote handling, which will impose weight, dimensional and logistical limitations. And while the encased coils are designed to be conventionally wound and bonded, they will not have the usual benefit of active cooling. Accordingly, coil temperatures are expected to reach 350 degrees C during bakeout as well as during plasma operations. These elevated temperatures are beyond the safe operating limits of conventional OFHC copper and the epoxies that bond and insulate the turns of typical coils. This has necessitated the use of an alternative copper alloy conductor C18150 (CuCrZr). More importantly, an alternative to epoxy had to be found. An R&D program was initiated to find the best available insulating and bonding material. The search included polyimides and ceramic polymers. The scope and status of this R&D program, as well as the critical engineering issues encountered to date are reviewed and discussed.

Zatz, I J [Princeton Plasma Physics Laboratory (PPPL); Baker, R [Association EURATOM-CCFE, Abingdon, UK; Brooks, A. [Princeton Plasma Physics Laboratory (PPPL); Cole, Michael J [ORNL; Neilson, G. H. [Princeton Plasma Physics Laboratory (PPPL)

2011-01-01T23:59:59.000Z

197

About nonlinear contractive conditions on cone metric spaces  

E-Print Network (OSTI)

In the present work we shall show that nonlinear contractive conditions on TVS-cone metric spaces can be reduced to nonlinear contractive conditions on usual metric spaces. Our results extend the results of Du (2010) [W.S. Du, A note on cone metric fixed point theory and its equivalence, Nonlinear Anal. 72 (2010), 2259-2261] and results of Abdeljawad and Rezapour [T. Abdeljawad, Sh. Rezapour, Some fixed point results in TVS-cone metric spaces, Fixed Point Theory (to appear 2012)].

Olaru, Ion

2011-01-01T23:59:59.000Z

198

Mineralogy under extreme conditions  

Science Conference Proceedings (OSTI)

We have performed measurements of minerals based on the synchrotron source for single crystal and powder X-ray diffraction, inelastic scattering, spectroscopy and radiography by using diamond anvil cells. We investigated the properties of iron (Fe), iron-magnesium oxides (Fe, Mg)O, silica(SiO{sub 2}), iron-magnesium silicates (Fe, Mg)SiO{sub 3} under simulated high pressure-high temperature extreme conditions of the Earth's crust, upper mantle, low mantle, core-mantle boundary, outer core, and inner core. The results provide a new window on the investigation of the mineral properties at Earth's conditions.

Shu, Jinfu (CIW)

2012-02-07T23:59:59.000Z

199

Operation of staged membrane oxidation reactor systems  

DOE Patents (OSTI)

A method of operating a multi-stage ion transport membrane oxidation system. The method comprises providing a multi-stage ion transport membrane oxidation system with at least a first membrane oxidation stage and a second membrane oxidation stage, operating the ion transport membrane oxidation system at operating conditions including a characteristic temperature of the first membrane oxidation stage and a characteristic temperature of the second membrane oxidation stage; and controlling the production capacity and/or the product quality by changing the characteristic temperature of the first membrane oxidation stage and/or changing the characteristic temperature of the second membrane oxidation stage.

Repasky, John Michael

2012-10-16T23:59:59.000Z

200

CRAD, Conduct of Operations - Y-12 Enriched Uranium Operations...  

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

Y-12 Enriched Uranium Operations Oxide Conversion Facility CRAD, Conduct of Operations - Y-12 Enriched Uranium Operations Oxide Conversion Facility January 2005 A section of...

Note: This page contains sample records for the topic "usual operating conditions" 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

Top 100 Operators: Proved Reserves and Production, Operated vs ...  

U.S. Energy Information Administration (EIA)

Top 100 Operators: Proved Reserves and Production, Operated vs Owned, 2008 . The operator of an oil or gas field is the company responsible for the fieldís ...

202

Operating Practices Guidebook (OPG)  

Science Conference Proceedings (OSTI)

This guidebook is a summary of current practices concerning operation, maintenance, siting, and staffing of combustion turbine, combined cycle, and cogeneration equipment. Information obtained from both utility and independent generators addresses the important issues faced by operators, project planners, and business managers.

1995-05-12T23:59:59.000Z

203

Cloud Computing Operations Research  

Science Conference Proceedings (OSTI)

This paper argues that the cloud computing industry faces many decision problems where operations research OR could add tremendous value. To this end, we provide an OR perspective on cloud computing in three ways. First, we compare the cloud computing ... Keywords: cloud IT, cloud computing, green IT, operations research, supply chain

Ilyas Iyoob, Emrah Zarifoglu, A. B. Dieker

2013-06-01T23:59:59.000Z

204

Definition: Operating Reserve - Spinning | Open Energy Information  

Open Energy Info (EERE)

Reserve - Spinning Reserve - Spinning Jump to: navigation, search Dictionary.png Operating Reserve - Spinning The portion of Operating Reserve consisting of: Generation synchronized to the system and fully available to serve load within the Disturbance Recovery Period following the contingency event; or, Load fully removable from the system within the Disturbance Recovery Period following the contingency event.[1] View on Wikipedia Wikipedia Definition In electricity networks, the operating reserve is the generating capacity available to the system operator within a short interval of time to meet demand in case a generator goes down or there is another disruption to the supply. Most power systems are designed so that, under normal conditions, the operating reserve is always at least the capacity of the

205

Definition: Operating Reserve - Supplemental | Open Energy Information  

Open Energy Info (EERE)

Supplemental Supplemental Jump to: navigation, search Dictionary.png Operating Reserve - Supplemental The portion of Operating Reserve consisting of: Generation (synchronized or capable of being synchronized to the system) that is fully available to serve load within the Disturbance Recovery Period following the contingency event; or, Load fully removable from the system within the Disturbance Recovery Period following the contingency event.[1] View on Wikipedia Wikipedia Definition In electricity networks, the operating reserve is the generating capacity available to the system operator within a short interval of time to meet demand in case a generator goes down or there is another disruption to the supply. Most power systems are designed so that, under normal conditions, the operating reserve is always at least the capacity of the

206

Synchronous operation of the BLDC motor  

E-Print Network (OSTI)

The brushless de (BLDC) motor is becoming widely used and popular in the small horsepower motor applications. Factors such as simplicity in control, low cost, high efficiency, low frame size, high torque per inertia, high power density and, most importantly, being br-ushless are the reasons that make the BLDC motor very attractive in motor drive applications. In this research a systematic approach to synchronous operation of the brushless DC (BLDC) motor has been investigated and implemented. This thesis establishes principles of synchronous operation of the BLDC motor, develops stable operating conditions, derives the required implementation formulas and introduces some new definitions. The synchronous system follows, open loop, a speed command. The system has been provided by two input references: current and speed. The current reference throughout the operation has been kept constant at the maximum applicable continuous current to obtain maximum torque. Current regulation has been achieved by hysteresis current control. The speed reference has been varied from zero speed to the desired speed linearly. Once speed reaches to the desired speed, it is kept constant at the desired speed. Since the motor operates synchronously and no position information has been used, the motor has to follow exactly the reference speed, otherwise pull out occurs. By this implementation, three operating points of the BLDC motor with synchronous operational system has been presented. One of the three operating points at maximum speed corresponds to maximum load operation.

Guzelgunler, Yilcan

1998-01-01T23:59:59.000Z

207

Integrated formal operations plan  

SciTech Connect

The concept of formal operations (that is, a collection of business practices to assure effective, accountable operations) has vexed the Laboratory for many years. To date most attempts at developing such programs have been based upon rigid, compliance-based interpretations of a veritable mountain of Department of Energy (DOE) orders, directives, notices, and standards. These DOE dictates seldom take the broad view but focus on highly specialized programs isolated from the overall context of formal operations. The result is a confusing array of specific, and often contradictory, requirements that produce a patchwork of overlapping niche programs. This unnecessary duplication wastes precious resources, dramatically increases the complexity of our work processes, and communicates a sense of confusion to our customers and regulators. Coupled with the artificial divisions that have historically existed among the Laboratory`s formal operations organizations (quality assurance, configuration management, records management, training, etc.), this approach has produced layers of increasingly vague and complex formal operations plans, each of which interprets its parent and adds additional requirements of its own. Organizational gridlock ensues whenever an activity attempts to implement these bureaucratic monstrosities. The integrated formal operations plan presented is to establish a set of requirements that must be met by an integrated formal operations program, assign responsibilities for implementation and operation of the program, and specify criteria against which the performance of the program will be measured. The accountable line manager specifies the items, processes, and information (the controlled elements) to which the formal operations program specified applies. The formal operations program is implemented using a graded approach based on the level of importance of the various controlled elements and the scope of the activities in which they are involved.

Cort, G.; Dearholt, W.; Donahue, S.; Frank, J.; Perkins, B.; Tyler, R.; Wrye, J.

1994-01-05T23:59:59.000Z

208

Plant Operational Status - Pantex Plant  

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

Status Plant Operational Status Page Content Operational Status Shift 1 - Day The Pantex Plant is open for normal operations. All personnel are to report for duty according to...

209

Stirling machine operating experience  

Science Conference Proceedings (OSTI)

Numerous Stirling machines have been built and operated, but the operating experience of these machines is not well known. It is important to examine this operating experience in detail, because it largely substantiates the claim that stirling machines are capable of reliable and lengthy operating lives. The amount of data that exists is impressive, considering that many of the machines that have been built are developmental machines intended to show proof of concept, and are not expected to operate for lengthy periods of time. Some Stirling machines (typically free-piston machines) achieve long life through non-contact bearings, while other Stirling machines (typically kinematic) have achieved long operating lives through regular seal and bearing replacements. In addition to engine and system testing, life testing of critical components is also considered. The record in this paper is not complete, due to the reluctance of some organizations to release operational data and because several organizations were not contacted. The authors intend to repeat this assessment in three years, hoping for even greater participation.

Ross, B. [Stirling Technology Co., Richland, WA (United States); Dudenhoefer, J.E. [Lewis Research Center, Cleveland, OH (United States)

1994-09-01T23:59:59.000Z

210

Quantum Operation Time Reversal  

E-Print Network (OSTI)

The dynamics of an open quantum system can be described by a quantum operation, a linear, complete positive map of operators. Here, I exhibit a compact expression for the time reversal of a quantum operation, which is closely analogous to the time reversal of a classical Markov transition matrix. Since open quantum dynamics are stochastic, and not, in general, deterministic, the time reversal is not, in general, an inversion of the dynamics. Rather, the system relaxes towards equilibrium in both the forward and reverse time directions. The probability of a quantum trajectory and the conjugate, time reversed trajectory are related by the heat exchanged with the environment.

Crooks, Gavin E

2007-01-01T23:59:59.000Z

211

Quantum Operation Time Reversal  

E-Print Network (OSTI)

The dynamics of an open quantum system can be described by a quantum operation, a linear, complete positive map of operators. Here, I exhibit a compact expression for the time reversal of a quantum operation, which is closely analogous to the time reversal of a classical Markov transition matrix. Since open quantum dynamics are stochastic, and not, in general, deterministic, the time reversal is not, in general, an inversion of the dynamics. Rather, the system relaxes towards equilibrium in both the forward and reverse time directions. The probability of a quantum trajectory and the conjugate, time reversed trajectory are related by the heat exchanged with the environment.

Gavin E. Crooks

2007-06-26T23:59:59.000Z

212

Two properties of condition numbers for convex programs via ...  

E-Print Network (OSTI)

has to do with the growth of the condition numbers of the linear equations arising in ...... Endow the data space with a norm as follows: Let (A, b) be the operator†...

213

Bipolar queries: An aggregation operator focused perspective  

Science Conference Proceedings (OSTI)

The concept of a bipolar query, meant as a database query that involves both negative and positive conditions, is discussed from the point of view of flexible database querying and modeling of more sophisticated intentions and preferences of the user. ... Keywords: Aggregation operators, Bipolar queries, Flexible queries, Fuzzy logic, Logical connectives modeling

S?awomir Zadro?ny; Janusz Kacprzyk

2012-06-01T23:59:59.000Z

214

Sampling Conditioned Hypoelliptic Diffusions  

E-Print Network (OSTI)

A series of recent articles introduced a method to construct stochastic partial differential equations (SPDEs) which are invariant with respect to the distribution of a given conditioned diffusion. These works are restricted to the case of elliptic diffusions where the drift has a gradient structure, and the resulting SPDE is of second order parabolic type. The present article extends this methodology to allow the construction of SPDEs which are invariant with respect to the distribution of a class of hypoelliptic diffusion processes, subject to a bridge conditioning. This allows the treatment of more realistic physical models, for example one can use the resulting SPDE to study transitions between meta-stable states in mechanical systems with friction and noise. In this situation the restriction of the drift being a gradient can also be lifted.

Hairer, Martin; Voss, Jochen

2009-01-01T23:59:59.000Z

215

Solar air conditioning  

DOE Green Energy (OSTI)

Development of a hybrid solar-assisted air conditioning system that combines a vapor compression section for sensible cooling with a desiccant section for dehumidification and that uses both solar energy and condenser waste heat to drive the dehumidifier has been under way for the last two years (1981 and 1982). The results of this research are included in this report: utilizing solar energy in an economical way has proven quite difficult.

Robison, H.

1981-01-01T23:59:59.000Z

216

High voltage pulse conditioning  

DOE Patents (OSTI)

Apparatus for conditioning high voltage pulses from particle accelerators in order to shorten the rise times of the pulses. Flashover switches in the cathode stalk of the transmission line hold off conduction for a determinable period of time, reflecting the early portion of the pulses. Diodes upstream of the switches divert energy into the magnetic and electrostatic storage of the capacitance and inductance inherent to the transmission line until the switches close.

Stringfield, R.M.; Wheat, R.M. Jr.

1989-02-21T23:59:59.000Z

217

High voltage pulse conditioning  

DOE Patents (OSTI)

Apparatus for conditioning high voltage pulses from particle accelerators in order to shorten the rise times of the pulses. Flashover switches in the cathode stalk of the transmission line hold off conduction for a determinable period of time, reflecting the early portion of the pulses. Diodes upstream of the switches divert energy into the magnetic and electrostatic storage of the capacitance and inductance inherent to the transmission line until the switches close.

Springfield, Ray M. (Sante Fe, NM); Wheat, Jr., Robert M. (Los Alamos, NM)

1990-01-01T23:59:59.000Z

218

Conditional SIC-POVMs  

E-Print Network (OSTI)

In this paper we examine a generalization of the symmetric informationally complete POVMs. SIC-POVMs are the optimal measurements for full quantum tomography, but if some parameters of the density matrix are known, then the optimal SIC POVM should be orthogonal to a subspace. This gives the concept of the conditional SIC-POVM. The existence is not known in general, but we give a result in the special cases when the diagonal is known of the density matrix.

D. Petz; L. Ruppert; A. Szanto

2012-02-26T23:59:59.000Z

219

Conditional SIC-POVMs  

E-Print Network (OSTI)

In this paper we examine a generalization of the symmetric informationally complete POVMs. SIC-POVMs are the optimal measurements for full quantum tomography, but if some parameters of the density matrix are known, then the optimal SIC POVM should be orthogonal to a subspace. This gives the concept of the conditional SIC-POVM. The existence is not known in general, but we give a result in the special cases when the diagonal is known of the density matrix.

Petz, D; Szanto, A

2012-01-01T23:59:59.000Z

220

Fuel gas conditioning process  

DOE Patents (OSTI)

A process for conditioning natural gas containing C.sub.3+ hydrocarbons and/or acid gas, so that it can be used as combustion fuel to run gas-powered equipment, including compressors, in the gas field or the gas processing plant. Compared with prior art processes, the invention creates lesser quantities of low-pressure gas per unit volume of fuel gas produced. Optionally, the process can also produce an NGL product.

Lokhandwala, Kaaeid A. (Union City, CA)

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Conditions for a class of entanglement transformations  

E-Print Network (OSTI)

Suppose Alice and Bob jointly possess a pure state, $|\\psi\\ra$. Using local operations on their respective systems and classical communication it may be possible for Alice and Bob to transform $|\\psi\\ra$ into another joint state $|\\phi\\ra$. This Letter gives necessary and sufficient conditions for this process of entanglement transformation to be possible. These conditions reveal a partial ordering on the entangled states, and connect quantum entanglement to the algebraic theory of majorization. As a consequence, we find that there exist essentially different types of entanglement for bipartite quantum systems.

M. A. Nielsen

1998-11-20T23:59:59.000Z

222

Field Operations Program  

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

688 688 May 1999 Field Operations Program Activities Status Report Fiscal Years 1997 through mid-1999 J. E. Francfort D. V. O'Hara L. A. Slezak DOE/ID-10688 Field Operations Program Activities Status Report Fiscal Years 1997 through mid-1999 J. E. Francfort 1 D. V. O'Hara 2 L. A. Slezak 2 Published May 1999 Idaho National Engineering and Environmental Laboratory Automotive Systems and Technology Department Lockheed Martin Idaho Technologies Company Idaho Falls, Idaho 83415 Prepared for the U.S. Department of Energy Idaho Operations Office 1 INEEL/Lockheed Martin Idaho Technologies Co. 2 U.S. Department of Energy iii EXECUTIVE SUMMARY The Field Operations Program is an electric vehicle testing and evaluation program sponsored by U.S. Department of Energy and managed by the Idaho National Engineering and Environmental

223

Operational Area Monitoring Plan  

Office of Legacy Management (LM)

' ' SECTION 11.7B Operational Area Monitoring Plan for the Long -Term H yd rol og ical M o n i to ri ng - Program Off The Nevada Test Site S . C. Black Reynolds Electrical & Engineering, Co. and W. G. Phillips, G. G. Martin, D. J. Chaloud, C. A. Fontana, and 0. G. Easterly Environmental Monitoring Systems Laboratory U. S. Environmental Protection Agency October 23, 1991 FOREWORD This is one of a series of Operational Area Monitoring Plans that comprise the overall Environmental Monitoring Plan for the DOE Field Office, Nevada (DOEINV) nuclear and non- nuclear testing activities associated with the Nevada Test Site (NTS). These Operational Area Monitoring Plans are prepared by various DOE support contractors, NTS user organizations, and federal or state agencies supporting DOE NTS operations. These plans and the parent

224

New Switching Operator Training  

Science Conference Proceedings (OSTI)

This Technical Update report summarizes work done on a new project, launched in 2006, that is focused on the development of training materials for apprentice and new operators. The project is part of EPRI's Switching Safety and Reliability research.

2006-12-11T23:59:59.000Z

225

CH Packaging Operations Manual  

Science Conference Proceedings (OSTI)

This procedure provides instructions for assembling the CH Packaging Drum payload assembly, Standard Waste Box (SWB) assembly, Abnormal Operations and ICV and OCV Preshipment Leakage Rate Tests on the packaging seals, using a nondestructive Helium (He) Leak Test.

Washington TRU Solutions LLC

2005-06-13T23:59:59.000Z

226

Oak Ridge Operations.  

Office of Legacy Management (LM)

9 4s - 22 Department of Energy Oak Ridge Operations. SI9J>liB P.O. Box 2001 Oak Ridge. Tennessee 37831-8723 October 21, 1994 Mr. Charles A. Duritsa Regional Director...

227

Operating plan FY 1998  

SciTech Connect

This document is the first edition of Argonne`s new Operating Plan. The Operating Plan complements the strategic planning in the Laboratory`s Institutional Plan by focusing on activities that are being pursued in the immediate fiscal year, FY 1998. It reflects planning that has been done to date, and it will serve in the future as a resource and a benchmark for understanding the Laboratory`s performance. The heart of the Institutional Plan is the set of major research initiatives that the Laboratory is proposing to implement in future years. In contrast, this Operating Plan focuses on Argonne`s ongoing R&D programs, along with cost-saving measures and other improvements being implemented in Laboratory support operations.

1997-10-01T23:59:59.000Z

228

Paste Plant Operations  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... It now provides data extraction features that aggregate system ... DUBAL Carbon Plant management team defined and implemented a 3-year strategic ... how to best approach Paste Plant operating and maintenance activities.

229

Cogeneration Operational Issues  

E-Print Network (OSTI)

A great deal of the discussions concerning congeneration projects are focused on the "avoided cost" and other legal issues which effect these projects. These areas are extremely important and are essential to the success of the venture. Equally important, however, are the operational Issues which impact the utility and the cogenerator. This paper addresses the utility perspective in regard to possible impact of cogeneration systems on utility service to other customer, safety and substation operations. Other operational issues also include utility transmission planning, generation planning and fuel mix decisions. All of these operational problems have an impact on the ratepayer in regard to quality of electric service and future rates. Both the cogenerator and the utility have an interest in solving these problems.

Williams, M.

1985-05-01T23:59:59.000Z

230

Cell Technology and Operation  

Science Conference Proceedings (OSTI)

Mar 14, 2012 ... The potlines are operating at 353 kA with excellent performances exceeding 96.0 % current efficiency and achieving 13.0 kWh/kgAl for more†...

231

Oak Ridge Operations YTO  

Office of Legacy Management (LM)

ed States Government Department of Energy Oak Ridge Operations YTO r , , EM-93:Hartman I - CATEGORICAL EXCLUSION (CX) DETERMINATION - RMOVAL ACTION AT M E SPRINGDALE r SITE I -a...

232

Idaho Operations Office  

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

TFA-0404) (OM-PA-I0- 062) Dear Mr. Berman: This is a revised final response from the Idaho Operations Office (DOE-ID), regarding your July 22, 2010, Freedom ofInformation Act...

233

Idaho Operations Office  

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

(ID-2010-01986-F) (OM-PA-I0-061) Dear Mr. Wetsch: This is in final response from the Idaho Operations Office (DOE-ID), regarding your June 2, 2010, Freedom of Information Act...

234

APS Operational Statistics  

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

physics, geology, and environmental science. The APS was built by the U.S. Department of Energy as a national user facility. This page provides access to operational statistics...

235

Operations Research Analysts  

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

Operations Research Analysts Operations Research Analysts The U.S. Energy Information Administration (EIA) within the Department of Energy has forged a world-class information program that stresses quality, teamwork, and employee growth. In support of our program, we offer a variety of profes- sional positions, including the Operations Research Analyst, whose work is associated with the development and main- tenance of energy modeling systems. Responsibilities: Operations Research Analysts perform or participate in one or more of the following important functions: * Develop, design, perform, and document a broad range of analyses and studies involving current and projected energy pricing, production, supply, and distribution, and consumption * Using computer programming skills and knowledge of energy industries and markets, designs and develops math-

236

Human Performance - Fossil Operations  

Science Conference Proceedings (OSTI)

All humans make errors. Industrial human errors can result in a loss of life and can significantly impact the productivity and cost effectiveness of any facility or company. Several industries in which human error has had a significant impact (for example, airline, medical, military, nuclear power, aviation, and chemical) have implemented human performance programs with excellent results. Human errors by fossil plant operators can easily challenge plant safety and production. In the fossil operations are...

2007-02-28T23:59:59.000Z

237

Operational Waste Volume Projection  

SciTech Connect

Waste receipts to the double-shell tank system are analyzed and wastes through the year 2015 are projected based on generation trends of the past 12 months. A computer simulation of site operations is performed, which results in projections of tank fill schedules, tank transfers, evaporator operations, tank retrieval, and aging waste tank usage. This projection incorporates current budget planning and the clean-up schedule of the Tri-Party Agreement. Assumptions were current as of June. 2000.

STRODE, J.N.

2000-08-28T23:59:59.000Z

238

ARM - Defensive Shotgun - Remington 870 Operator's Guide  

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

AlaskaDefensive Shotgun - Remington 870 AlaskaDefensive Shotgun - Remington 870 Operator's Guide Page Contents Firearms Safety Nomenclature Disassembly Care and Cleaning Assembly Function Check Marksmanship Fundamentals Zeroing Loading Chamber Checking Unloading Condition-One Malfunction: Failure to Fire Condition-Two Malfunction: Failure to Eject Condition-Three Malfunction: Failure to Extract Ready Positions Carries Standing Kneeling Sitting Barricade Defensive Shotgun - Remington 870 Operator's Guide U.S. Department of Energy Safeguards and Security Central Training Academy FIREARMS SAFETY Firearms safety is as important during daily activities as during range and training activities. Observing a few precautions when handling firearms in the field can help ensure your safety and that of those around you. It will

239

Optimal Operation of a Waste Incineration Plant for District Heating Johannes Jaschke, Helge Smedsrud, Sigurd Skogestad*, Henrik Manum  

E-Print Network (OSTI)

Optimal Operation of a Waste Incineration Plant for District Heating Johannes J¨aschke, Helge@chemeng.ntnu.no off-line. This systematic approach is here applied to a waste incineration plant for district heating. In district heating networks, operators usually wish to ob- tain the lowest possible return temperature

Skogestad, Sigurd

240

Attachment K TERMS AND CONDITIONS  

E-Print Network (OSTI)

Attachment K TERMS AND CONDITIONS AWARD # #12;TERMS AND CONDITIONS TABLE OF CONTENTS SECTION PAGE ............................................................................... 24 i #12;TERMS AND CONDITIONS 1. Grant Agreement This project is being funded with a grant from, the Terms and Conditions, and all attachments. These Terms and Conditions are standard requirements

Note: This page contains sample records for the topic "usual operating conditions" 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

Spatial and Microphysical Characteristics of Low-Ceiling, Temperature-Inverted Clouds in Warm Overrunning and Freezing-Rain Conditions: A Case Study  

Science Conference Proceedings (OSTI)

In-flight microphysical measurements in classical freezing-rain conditions were used to study the vertical and horizontal characteristics of the precipitation and associated low-ceiling, stratiform clouds, which are usually present as overcast in ...

Richard K. Jeck

2011-10-01T23:59:59.000Z

242

Hydrate Control for Gas Storage Operations  

Science Conference Proceedings (OSTI)

The overall objective of this project was to identify low cost hydrate control options to help mitigate and solve hydrate problems that occur in moderate and high pressure natural gas storage field operations. The study includes data on a number of flow configurations, fluids and control options that are common in natural gas storage field flow lines. The final phase of this work brings together data and experience from the hydrate flow test facility and multiple field and operator sources. It includes a compilation of basic information on operating conditions as well as candidate field separation options. Lastly the work is integrated with the work with the initial work to provide a comprehensive view of gas storage field hydrate control for field operations and storage field personnel.

Jeffrey Savidge

2008-10-31T23:59:59.000Z

243

Categorical Exclusion Determinations: Idaho Operations Office | Department  

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

January 25, 2011 January 25, 2011 CX-005187: Categorical Exclusion Determination Hex Block Shipment Project CX(s) Applied: B3.6 Date: 01/25/2011 Location(s): Idaho Office(s): Nuclear Energy, Idaho Operations Office January 5, 2011 CX-004926: Categorical Exclusion Determination Radioactive Waste Management Complex ? Analytical Laboratory Operations CX(s) Applied: B3.1 Date: 01/05/2011 Location(s): Idaho Office(s): Nuclear Energy, Idaho Operations Office December 10, 2010 CX-004645: Categorical Exclusion Determination CPP-663 Heating, Ventilation and Air Conditioning Systems Upgrade CX(s) Applied: B2.1 Date: 12/10/2010 Location(s): Idaho Office(s): Idaho Operations Office November 16, 2010 CX-004561: Categorical Exclusion Determination Idaho Nuclear Technology and Engineering Center - Light Water Breeder

244

Nuclear Maintenance Applications Center: Emergency Diesel Generator Condition- Based Maintenance  

Science Conference Proceedings (OSTI)

Condition-based maintenance practices that were developed in the United States in the 1990s for emergency diesel generators (EDGs) have not been fully adopted by international nuclear plant operators. To encourage broader use of such practices, NMAC formed a technical advisory group of international utilities interested in learning more about condition-based EDG maintenance practices.

2008-12-19T23:59:59.000Z

245

Interactive Trouble Condition Sign Discovery for Hydroelectric Power Plants  

Science Conference Proceedings (OSTI)

Kyushu Electric Power Co.,Inc. collects different sensor data and weather information (hereafter, operation data) to maintain the safety of hydroelectric power plants while the plants are running. It is very rare to occur trouble condition in the plants. ... Keywords: Data Mining, Hydroelectric Power Plant, Support Vector Machine, Trouble Condition Detection

Takashi Onoda; Norihiko Ito; Hironobu Yamasaki

2009-07-01T23:59:59.000Z

246

Storage Ring Operation Modes  

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

Longitudinal bunch profile and Up: APS Storage Ring Parameters Longitudinal bunch profile and Up: APS Storage Ring Parameters Previous: Source Parameter Table Storage Ring Operation Modes Standard Operating Mode, top-up Fill pattern: 102 mA in 24 singlets (single bunches) with a nominal current of 4.25 mA and a spacing of 153 nanoseconds between singlets. Lattice configuration: Low emittance lattice with effective emittance of 3.1 nm-rad and coupling of 1%. Bunch length (rms): 33.5 ps. Refill schedule: Continuous top-up with single injection pulses occurring at a minimum of two minute intervals, or a multiple of two minute intervals. Special Operating Mode - 324 bunches, non top-up Fill pattern: 102 mA in 324 uniformly spaced singlets with a nominal single bunch current of 0.31 mA and a spacing of 11.37 nanoseconds between singlets.

247

ORNL radioactive waste operations  

SciTech Connect

Since its beginning in 1943, ORNL has generated large amounts of solid, liquid, and gaseous radioactive waste material as a by-product of the basic research and development work carried out at the laboratory. The waste system at ORNL has been continually modified and updated to keep pace with the changing release requirements for radioactive wastes. Major upgrading projects are currently in progress. The operating record of ORNL waste operation has been excellent over many years. Recent surveillance of radioactivity in the Oak Ridge environs indicates that atmospheric concentrations of radioactivity were not significantly different from other areas in East Tennesseee. Concentrations of radioactivity in the Clinch River and in fish collected from the river were less than 4% of the permissible concentration and intake guides for individuals in the offsite environment. While some radioactivity was released to the environment from plant operations, the concentrations in all of the media sampled were well below established standards.

Sease, J.D.; King, E.M.; Coobs, J.H.; Row, T.H.

1982-01-01T23:59:59.000Z

248

Operations Information for Studies  

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

Operations Information for Studies Operations Information for Studies This page contains historical information about hydropower operations. Reclamation UC Region 24-Month Studies FY2009 Load Information (pdf) SLIP total customer loads for Fiscal Year 2009 (Oct, 2008-Sept, 2009) FY2010 Load Information (pdf) SLIP total customer loads for Fiscal Year 2010 (Oct, 2009-Sept, 2010) FY2011 Load Information (pdf) SLIP total customer loads for Fiscal Year 2011 (Oct, 2010-Sept, 2011) FY2012 Load Information (pdf) SLIP total customer loads for Fiscal Year 2012 (Oct, 2011-Sept, 2012) FY2013 Load Information (pdf) SLIP total customer loads for Fiscal Year 2013 (Oct, 2012-Sept, 2013) CRSP Projected Power Releases From USBR (Excel) The most recent file of projected future power releases from CRSP Dams, median projection

249

GNF2 Operating Experience  

Science Conference Proceedings (OSTI)

GNF's latest generation fuel product, GNF2, is designed to deliver improved nuclear efficiency, higher bundle and cycle energy capability, and more operational flexibility. But along with high performance, our customers face a growing need for absolute fuel reliability. This is driven by a general sense in the industry that LWR fuel reliability has plateaued. Too many plants are operating with fuel leakers, and the impact on plant operations and operator focus is unacceptable. The industry has responded by implementing an INPO-coordinated program aimed at achieving leaker-free reliability by 2010. One focus area of the program is the relationship between fuel performance (i.e., duty) and reliability. The industry recognizes that the right balance between performance and problem-free fuel reliability is critical. In the development of GNF2, GNF understood the requirement for a balanced solution and utilized a product development and introduction strategy that specifically addressed reliability: evolutionary design features supported by an extensive experience base; thoroughly tested components; and defense-in-depth mitigation of all identified failure mechanisms. The final proof test that the balance has been achieved is the application of the design, initially through lead use assemblies (LUAs), in a variety of plants that reflect the diversity of the BWR fleet. Regular detailed surveillance of these bundles provides the verification that the proper balance between performance and reliability has been achieved. GNF currently has GNF2 lead use assemblies operating in five plants. Included are plants that have implemented extended power up-rates, plants on one and two-year operating cycles, and plants with and without NobleChem{sup TM} and zinc injection. The leading plant has undergone three pool-side inspections outages to date. This paper reviews the actions taken to insure GNF2's reliability, and the lead use assembly surveillance data accumulated to date to validate the adequacy/expected behavior of the design. (authors)

Schardt, John [GE Energy, Nuclear, 3901 Castle Hayne Road, Wilmington, NC 28402 (United States)

2007-07-01T23:59:59.000Z

250

TRIGA reactor operating experience  

SciTech Connect

The Oregon State TRIGA Reactor (OSTR) has been in operation 3 years. Last August it was upgraded from 250 kW to 1000 kW. This was accomplished with little difficulty. During the 3 years of operation no major problems have been experienced. Most of the problems have been minor in nature and easily corrected. They came from lazy susan (dry bearing), Westronics Recorder (dead spots in the range), The Reg Rod Magnet Lead-in Circuit (a new type lead-in wire that does not require the lead-in cord to coil during rod withdrawal hss been delivered, much better than the original) and other small corrections.

Anderson, T.V. [Oregon State University, Corvallis, OR (United States)

1970-07-01T23:59:59.000Z

251

Conditional sterility in plants  

DOE Patents (OSTI)

The present disclosure provides methods, recombinant DNA molecules, recombinant host cells containing the DNA molecules, and transgenic plant cells, plant tissue and plants which contain and express at least one antisense or interference RNA specific for a thiamine biosynthetic coding sequence or a thiamine binding protein or a thiamine-degrading protein, wherein the RNA or thiamine binding protein is expressed under the regulatory control of a transcription regulatory sequence which directs expression in male and/or female reproductive tissue. These transgenic plants are conditionally sterile; i.e., they are fertile only in the presence of exogenous thiamine. Such plants are especially appropriate for use in the seed industry or in the environment, for example, for use in revegetation of contaminated soils or phytoremediation, especially when those transgenic plants also contain and express one or more chimeric genes which confer resistance to contaminants.

Meagher, Richard B. (Athens, GA); McKinney, Elizabeth (Athens, GA); Kim, Tehryung (Taejeon, KR)

2010-02-23T23:59:59.000Z

252

Battery condition indicator  

SciTech Connect

A battery condition indicator is described for indicating both the charge used and the life remaining in a rechargeable battery comprising: rate multiplying and counting means for indirectly measuring the charge useed by the battery between charges; means for supplying variable rate clock pulse to the rate multiplying and counting means, the rate of the clock pulses being a function of whether a high current consumption load is connected to the battery or not; timing means for measuring the total time in service of the battery; charge used display means responsive to the rate multiplying and counting means for providing an indication of the charge remaining in the battery; and age display means responsive to the timing means for providing an indication of the life or age of the battery.

Fernandez, E.A.

1987-01-20T23:59:59.000Z

253

Measurement of autonomous operation  

Science Conference Proceedings (OSTI)

While robotic systems and the field of Artificial Intelligence (AI) have been funded through the Department Of Defense (DoD) and Industry for decades, it was not until recent years that the combination of these two technologies has made truly significant ... Keywords: C4ISR, automated decision aid (ADA), autonomous control, autonomous operations, unmanned aerial system

W. Hamel

2010-09-01T23:59:59.000Z

254

REACTOR OPERATIONS AND CONTROL  

E-Print Network (OSTI)

of Neural Networks to the Operations of Nuclear Power Plants," Nucl. Safety, 32, 68 ~1991!. 3. I. P√ĀZSIT detectors.1 According to the technical specifications of the Ring- hals power plant, in which this work and the "distorted" axial flux shape, and from the latter, *Current address: The Swedish Nuclear Power Inspectorate

P√°zsit, Imre

255

NUCLEAR PLANT OPERATIONS AND  

E-Print Network (OSTI)

NUCLEAR PLANT OPERATIONS AND CONTROL KEYWORDS: neutron flux, cur- rent noise, vibration diagnostics: Swedish Nuclear Power Inspectorate SE- 10658 Stockholm, Sweden. NUCLEAR TECHNOLOGY VOL. 131 AUG. 2000 239 by the Swedish Nuclear Power Inspectorate, contract 14.5-980942-98242. REFERENCES 1. A. M. WEINBERG and H. C

P√°zsit, Imre

256

Applications: Operational wind turbines  

E-Print Network (OSTI)

Capability Applications: Operational wind turbines Benefits: Optimize wind turbine performance Summary: Researchers at the Los Alamos National Laboratory (LANL) Intelligent Wind Turbine Program are developing a multi-physics modeling approach for the analysis of wind turbines in the presence of realistic

257

Operator strength reduction  

Science Conference Proceedings (OSTI)

Operator strength reduction is a technique that improves compiler-generated code by reformulating certain costly computations in terms of less expensive ones. A common case arises in array addressing expressions used in loops. The compiler can replace ... Keywords: loops, static single assignment form, strength reduction

Keith D. Cooper; L. Taylor Simpson; Christopher A. Vick

2001-09-01T23:59:59.000Z

258

Designing intelligent healthcare operations  

Science Conference Proceedings (OSTI)

Effective decision making is vital in all healthcare activities. While this decision making is typically complex and unstructured, it requires the decision maker to gather multi-spectral data and information in order to make an effective choice when ... Keywords: healthcare operations, intelligence continuum, knowledge management, multi agent systems

Nilmini Wickramasinghe; Christian Guttmann; Jonathan Schaffer

2009-12-01T23:59:59.000Z

259

Quantum Operations and Measurement  

E-Print Network (OSTI)

Quantum Operations and Measurement M.P Seevinck E-mail: M.P.Seevinck@phys.uu.nl Utrecht field in quantum physics ­ or perhaps better, a new way of doing quantum physics ­ . . . Surprisingly of these developments to the conceptual problems of quantum mechanics. In our view, the new work on quantum information

Seevinck, Michiel

260

Quantum Operations and Measurement  

E-Print Network (OSTI)

Quantum Operations and Measurement # M.P Seevinck # E­mail: M.P.Seevinck@phys.uu.nl Utrecht in quantum physics -- or perhaps better, a new way of doing quantum physics -- . . . Surprisingly, with few to the conceptual problems of quantum mechanics. In our view, the new work on quantum information changes

Seevinck, Michiel

Note: This page contains sample records for the topic "usual operating conditions" 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

Operations modeling and analysis of open pit copper mining using GPS tracking data  

Science Conference Proceedings (OSTI)

Open pit copper mining plants usually comprise two major components, the open pit mining operation and the copper ore enrichment plant. An open pit copper mine is an excavation or graze made into the surface of the ground for the purpose of extracting ...

Yifei Tan; Kanna Miwa; Undram Chinbat; Soemon Takakuwa

2012-12-01T23:59:59.000Z

262

Operations modeling and analysis of an underground coal mine  

Science Conference Proceedings (OSTI)

In general, it is quite difficult to describe and model operations and conveyance systems precisely in underground coal mines because of geological components, poor visibility, unreliable installed facilities, and difficult work conditions. In this study, ...

Kanna Miwa; Soemon Takakuwa

2011-12-01T23:59:59.000Z

263

An Improved Operational System for Forecasting Precipitation Type  

Science Conference Proceedings (OSTI)

A Model Output Statistics system for forecasting the conditional probability of precipitation type (PoPT) became operational within the National Weather Service in September 1978. Forecasts are provided for three precipitation type categories: ...

Joseph R. Bocchieri; George J. Maglaras

1983-03-01T23:59:59.000Z

264

Decision support for operations and maintenance (DSOM) system  

DOE Patents (OSTI)

A method for minimizing the life cycle cost of processes such as heating a building. The method utilizes sensors to monitor various pieces of equipment used in the process, for example, boilers, turbines, and the like. The method then performs the steps of identifying a set optimal operating conditions for the process, identifying and measuring parameters necessary to characterize the actual operating condition of the process, validating data generated by measuring those parameters, characterizing the actual condition of the process, identifying an optimal condition corresponding to the actual condition, comparing said optimal condition with the actual condition and identifying variances between the two, and drawing from a set of pre-defined algorithms created using best engineering practices, an explanation of at least one likely source and at least one recommended remedial action for selected variances, and providing said explanation as an output to at least one user.

Jarrell, Donald B. (Kennewick, WA); Meador, Richard J. (Richland, WA); Sisk, Daniel R. (Richland, WA); Hatley, Darrel D. (Kennewick, WA); Brown, Daryl R. (Richland, WA); Keibel, Gary R. (Richland, WA); Gowri, Krishnan (Richland, WA); Reyes-Spindola, Jorge F. (Richland, WA); Adams, Kevin J. (San Bruno, CA); Yates, Kenneth R. (Lake Oswego, OR); Eschbach, Elizabeth J. (Fort Collins, CO); Stratton, Rex C. (Richland, WA)

2006-03-21T23:59:59.000Z

265

Attachment J TERMS AND CONDITIONS  

E-Print Network (OSTI)

Attachment J TERMS AND CONDITIONS AWARD # PON-10-603 #12;TERMS AND CONDITIONS TABLE OF CONTENTS ............................................................................... 24 i #12;TERMS AND CONDITIONS 1. Grant Agreement This project is being funded with a grant from is comprised of the grant funding award, the Terms and Conditions, and all attachments. These Terms

266

Top 100 Operators: Proved Reserves and Production, Operated vs ...  

U.S. Energy Information Administration (EIA)

The operator of an oil or gas field is the company ... Operators in the United States are obligated to ... Reserves Production Reserves Production ...

267

Fuel conditioning process  

SciTech Connect

A fuel conditioning process and apparatus for use where natural gas is compressed by a field compressor driven by a natural gas powered engine. The fuel portion of the compressed raw natural gas is passed through an adsorption vessel containing an adsorbent material capable of adsorbing impurities. The outlet gas from the adsorption vessel is accumulated and mixed for averaging and controlling the heating value of the outlet gas used for fuel. Regeneration of the adsorption material, when employing multiple adsorption vessels, is accomplished by connecting one adsorption vessel to the suction side of the compressor, purified gas from another adsorption vessel in adsorption service is backflowed through the loaded adsorption vessel to desorb the previously adsorbed impurities, the flow of the compressed raw natural gas to the other adsorption vessel is terminated and the pressure within the two adsorption vessels is equalized. The regenerated adsorption vessel is then repressured with the compressed raw natural gas prior to returning it to the adsorption mode.

McGill, J. C.; Alley, J. R.; Coombs, D. W.

1985-07-09T23:59:59.000Z

268

Neural network control for an intelligent air handler in an air-conditioning system.  

E-Print Network (OSTI)

??Many commercial air-conditioning systems in hot and humid areas like Singapore are operated throughout the year. There are two main classifications for these systems: theÖ (more)

Zhang, Qi.

2008-01-01T23:59:59.000Z

269

A Generalized Inverter Control Method for a Variable Speed Wind Power System Under Unbalanced Operting Conditions.  

E-Print Network (OSTI)

??This thesis presents a generalized control method for complete harmonic elimination and adjustable power factor of a grid side inverter under unbalanced operating conditions usedÖ (more)

Wu, Shuang

2010-01-01T23:59:59.000Z

270

CRAD, Conduct of Operations - Y-12 Enriched Uranium Operations Oxide  

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

Conduct of Operations - Y-12 Enriched Uranium Operations Conduct of Operations - Y-12 Enriched Uranium Operations Oxide Conversion Facility CRAD, Conduct of Operations - Y-12 Enriched Uranium Operations Oxide Conversion Facility January 2005 A section of Appendix C to DOE G 226.1-2 "Federal Line Management Oversight of Department of Energy Nuclear Facilities." Consists of Criteria Review and Approach Documents (CRADs) used for a January, 2005 assessment of Conduct of Operations program at the Y-12 - Enriched Uranium Operations Oxide Conversion Facility. CRADs provide a recommended approach and the types of information to gather to assess elements of a DOE contractor's programs. CRAD, Conduct of Operations - Y-12 Enriched Uranium Operations Oxide Conversion Facility More Documents & Publications CRAD, DOE Oversight - Y-12 Enriched Uranium Operations Oxide Conversion

271

Zoning and occupancy-moderation for residential space-conditioning under demand-driven electricity pricing  

E-Print Network (OSTI)

Occupancy-moderated zonal space-conditioning (OZS) refers to the partitioning of a residence into different zones and independently operating the space-conditioning equipment of each zone based on its occupancy. OZS remains ...

Leow, Woei Ling, 1977-

2012-01-01T23:59:59.000Z

272

Nevada Operations Office  

Office of Legacy Management (LM)

Nevada Operations Office Nevada Operations Office t' . 0. Box 14100, Las Vegas, NV 89114-4100 Lt. Col. Kent J. Rohlof; USAF Commander 554th Civil Engineering Support Squadron (TAC) Nellis Air Force Base, NV 89191 DISPOSAL OF LIQUID RADIOACTIVE WASTE--NELLIS AIR FORCE BASE Layton O'Neill and Thomas Graham of my office recently visited two sites at Nellis AFB, Area II, identified as locations for burial of radioactive waste. The purpose of this visit was to visually inspect the physical status of the sites, one identified as the location of the subject liquid wastes. Numerous readings were made with a hand-held Ludlum Model 125 Micro-R meter, for the purpose of personnel radiation protection walking into the controlled, posted radioactive waste compounds. No readings were above background.

273

Operations Improvement Surveys  

E-Print Network (OSTI)

Exxon Chemical Company developed unique site-wide energy optimization technology in the mid1970's. This technology was applied by means of site energy surveys which were carried out at every major Exxon facility throughout the world during the 1976-1981 timeframe. The first 20% of energy savings, versus the 1972 reference, had already been captured or was in progress via conventional energy conservation methods. The site energy surveys identified attractive investments to save a second 20% of energy use. In early 1982, Exxon Corp. started to apply this same technology to its major facilities to define attractive NO INVESTMENT and LOW INVESTMENT operational improvement savings which could be implemented quickly. This presentation covers Exxon's approach to site energy optimization and the Operations Improvement Survey Program. The Program has identified at many sites, an average of 5% reduction in today's energy costs at No/Low investment plus additional savings in the feedstock and energy supply areas.

Guide, J. J.; O'Brien, W. J.

1984-01-01T23:59:59.000Z

274

Improve your operations training  

Science Conference Proceedings (OSTI)

Operators need problem-solving expertise that allows them to successfully restore the system online. But they should also understand how what they did worked, and why. The method for this is process logic (PL). PL is a common-sense, efficient method of problem solving using an if-them deductive-reasoning approach to discover root cause of system upsets. PL procedures in troubleshooting call for the operator to: examine all effects; separate logical (expected) changes from unexpected; identify and tag unique set(s) of thumbprints; determine source of thumbprints (i.e. originating component); locate original change in said component; verify root cause change; devise appropriate corrective action plan; and implement corrective action. Several examples illustrate this method for troubleshooting.

Swain, J.H.; Maddux, M. (K and S Associates, Texas City, TX (United States))

1994-12-01T23:59:59.000Z

275

SURVEY OF FALLOUT OPERATIONS  

SciTech Connect

A survey was made of fall-out operations in the various countries of the world, These operations are outlined by country. The source of information has largely been the reports submitted to UNSCEAR forwarding data for their consideration. In addition, some material has been received directly in exchange for HASL Quarterlies and other publications of the Laboratory. In many cases, responsible scientists from the country concerned have reviewed the sheets and have made corrections. All of the programs that are shown have been and are subject to modification as time goes on, thus, the data indicate the status of the program as of 1961. No attempt has been made to list re search projects or special fall-out measurements and only programs of a continuing nature have been covered. (auth)

1962-07-01T23:59:59.000Z

276

User Operation Manual  

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

SNS-NSSD-TOF-TD-0002 - R00 SNS-NSSD-TOF-TD-0002 - R00 1 SEQUOIA Operations Manual for Users G.E. Granroth SEQUOIA Lead Instrument Scientist A.I. Kolesnikov SEQUOIA Instrument Scientist L.M. DeBeer-Schmitt SEQUOIA Scientific Associate T.E. Sherline Sample Environment Scientist Revised - May 13, 2013 SNS-NSSD-TOF-TD-0002 - R00 2 Abstract The SEQUOIA Operations Manual for Users presents a description of the SEQUOIA spectrometer located at beamline 17 (BL17) of the Spallation Neutron Source (SNS). It is the intent of this manual to inform the user regarding the SEQUOIA spectrometer and available sample environment, to run experiments, to access and analyze the collected data, and to provide the user with other potentially useful information. The first section serves to describe the components of which the instrument is comprised.

277

War Gaming Peace Operations  

Science Conference Proceedings (OSTI)

Today's military personnel fight against and work with a diverse variety of nonstate actors, from al-Qaeda terrorists to major nongovernmental organizations who provide vital humanitarian assistance. Furthermore, the nontraditional battle spaces where ... Keywords: Afghanistan, NGOs, active learning, board game, course of action, culture, curriculum, facilitator, faith-based, humanitarian, humanitarian assistance, indeterminacy, index, intelligence, kinetic, military, negotiations, operations, post-conflict, provincial reconstruction, random events, relationships, religion, religious, stability, terrorists, war game for peace

Roger Mason, Eric Patterson

2013-02-01T23:59:59.000Z

278

HEV Fleet Testing Operating Statistics  

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

calculated for this figure using mass air flow over dynamic vehicle operation. 2006 Toyota Highlander Hybrid Final Fleet Testing Results Operating Performance Cumulative MPG 1 :...

279

HEV Fleet Testing Operating Statistics  

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

calculated for this figure using mass air flow over dynamic vehicle operation. 2007 Toyota Camry Hybrid Final Fleet Testing Results Operating Performance Cumulative MPG 1 : 33.6...

280

What is an accelerator operator?  

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

is an accelerator operator? First I'll explain the education one must have in order to be considered for an Accelerator Operator position. Jefferson Lab's typical Accelerator...

Note: This page contains sample records for the topic "usual operating conditions" 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

Climate Data Operators (CDO)  

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

Climate Climate Data Operators (CDO) Climate Data Operators (CDO) Description and Overview CDO is a large tool set for working on climate data. NetCDF 3/4, GRIB including SZIP compression, EXTRA, SERVICE and IEG are supported as IO-formats. Apart from that cdo can be used to analyse any kind gridded data not related to climate science. CDO has very small memory requirements and can process files larger than the physical memory. How to Use CDO module load cdo cdo [Options] Operators ... Further Information CDO Online Documentation Availability Package Platform Category Version Module Install Date Date Made Default cdo carver libraries/ I/O 1.4.1 cdo/1.4.1 2012-01-13 2012-01-13 cdo carver libraries/ I/O 1.4.6 cdo/1.4.6 2012-05-24 2012-05-25 cdo carver libraries/ I/O 1.6.1 cdo/1.6.1 2013-07-02

282

Operational health physics training  

SciTech Connect

The initial four sections treat basic information concerning atomic structure and other useful physical quantities, natural radioactivity, the properties of {alpha}, {beta}, {gamma}, x rays and neutrons, and the concepts and units of radiation dosimetry (including SI units). Section 5 deals with biological effects and the risks associated with radiation exposure. Background radiation and man-made sources are discussed next. The basic recommendations of the ICRP concerning dose limitations: justification, optimization (ALARA concepts and applications) and dose limits are covered in Section seven. Section eight is an expanded version of shielding, and the internal dosimetry discussion has been extensively revised to reflect the concepts contained in the MIRD methodology and ICRP 30. The remaining sections discuss the operational health physics approach to monitoring radiation. Individual sections include radiation detection principles, instrument operation and counting statistics, health physics instruments and personnel monitoring devices. The last five sections deal with the nature of, operation principles of, health physics aspects of, and monitoring approaches to air sampling, reactors, nuclear safety, gloveboxes and hot cells, accelerators and x ray sources. Decontamination, waste disposal and transportation of radionuclides are added topics. Several appendices containing constants, symbols, selected mathematical topics, and the Chart of the Nuclides, and an index have been included.

NONE

1992-06-01T23:59:59.000Z

283

Method for assessing motor insulation on operating motors  

DOE Patents (OSTI)

A method for monitoring the condition of electrical-motor-driven devices. The method is achieved by monitoring electrical variables associated with the functioning of an operating motor, applying these electrical variables to a three phase equivalent circuit and determining non-symmetrical faults in the operating motor based upon symmetrical components analysis techniques.

Kueck, John D. (Oak Ridge, TN); Otaduy, Pedro J. (Oak Ridge, TN)

1997-01-01T23:59:59.000Z

284

Modeling safe operating area in hardware description languages  

Science Conference Proceedings (OSTI)

Creating a Robust Design requires that the operating conditions of each component of the design are carefully measured and compared with its Safe Operating, a task commonly referred to as stress analysis. In this paper we analyze the relationship between ... Keywords: MAST, VHDL-AMS, stress analysis

Leonid Goldgeisser; Ernst Christen; Zhichao Deng

2007-06-01T23:59:59.000Z

285

Method for assessing motor insulation on operating motors  

DOE Patents (OSTI)

A method for monitoring the condition of electrical-motor-driven devices is disclosed. The method is achieved by monitoring electrical variables associated with the functioning of an operating motor, applying these electrical variables to a three phase equivalent circuit and determining non-symmetrical faults in the operating motor based upon symmetrical components analysis techniques. 15 figs.

Kueck, J.D.; Otaduy, P.J.

1997-03-18T23:59:59.000Z

286

Intelligent Machine Learning Analysis for Fuel Cell Operations  

SciTech Connect

A performance computational model for a 100 kW nominal solid oxide fuel cell generator system is described. The calculational methods are based on the FORTRAN programming language. Comprehensive parameter input options are presented, and constraints are identified. Example reactant, electrical, and efficiency outputs are demonstrated over the relevant operating ranges. A sample calculated output display at nominal operating conditions is given.

Murphy, R.W.; Hoyt, W.A.

2000-06-30T23:59:59.000Z

287

Operation Castle. Operation Plan Number 1-53. Task Group 7. 1  

Science Conference Proceedings (OSTI)

Overseas experimentation depends upon progress of construction, reliability of instrumentation and the overcoming of obstacles presented by local conditions. This Operation Plan is intended to be used as a guide for TG 7.1 personnel since it represents a record of agreements arrived at prior to its compilation.

Ogle, W.E.

1984-08-31T23:59:59.000Z

288

Material instability hazards in mine-processing operations  

SciTech Connect

Many accidents occur in the mining industry as a result of the instability of material during handling and processing operation. Accidents due to dump point instability at stockpiles, and at spoil or waste piles, for example, occur with alarming frequency. Miners must be trained to be better aware of these hazards. Information on safe working procedures at stockpiles and surge piles is provided. Mine operators must review their training and operating procedures regularly to ensure that hazardous conditions are avoided.

Fredland, J.W.; Wu, K.K.; Kirkwood, D.W.

1993-10-01T23:59:59.000Z

289

Naturalistic Decision Making For Power System Operators  

Science Conference Proceedings (OSTI)

Abstract: Motivation -- As indicated by the Blackout of 2003, the North American interconnected electric system is vulnerable to cascading outages and widespread blackouts. Investigations of large scale outages often attribute the causes to the three Tís: Trees, Training and Tools. A systematic approach has been developed to document and understand the mental processes that an expert power system operator uses when making critical decisions. The approach has been developed and refined as part of a capability demonstration of a high-fidelity real-time power system simulator under normal and emergency conditions. To examine naturalistic decision making (NDM) processes, transcripts of operator-to-operator conversations are analyzed to reveal and assess NDM-based performance criteria. Findings/Design -- The results of the study indicate that we can map the Situation Awareness Level of the operators at each point in the scenario. We can also identify clearly what mental models and mental simulations are being performed at different points in the scenario. As a result of this research we expect that we can identify improved training methods and improved analytical and visualization tools for power system operators. Originality/Value -- The research applies for the first time, the concepts of Recognition Primed Decision Making, Situation Awareness Levels and Cognitive Task Analysis to training of electric power system operators. Take away message -- The NDM approach provides an ideal framework for systematic training management and mitigation to accelerate learning in team-based training scenarios with high-fidelity power grid simulators.

Greitzer, Frank L.; Podmore, Robin; Robinson, Marck; Ey, Pamela

2009-06-23T23:59:59.000Z

290

Value Operating Flexibility in Advanced Coal Plants  

Science Conference Proceedings (OSTI)

This report describes a preliminary study of the potential value of the operating flexibility available from advanced coal plant designs and carbon capture and storage (CCS) systems. Assessing value requires new analytical approaches capable of examining plant outputs (e.g., syngas, air products, electricity, emissions) in the context of varying power market conditions and significant climate policy and fuel price uncertainties. Accounting for flexibility options in capacity planning may create opportuni...

2009-12-22T23:59:59.000Z

291

On the Economics of 3G Mobile Virtual Network Operators (MVNOs)  

Science Conference Proceedings (OSTI)

The paper assesses the market conditions and dynamics, the architectures and the different approaches for deployment of 3G Mobile Virtual Network Operators (MVNOs), in an attempt to address specific advantages and pitfalls. Following the definition of ... Keywords: (MVNOs), 3G economics, 3G market, 3G systems, UMTS, mobile internet economics, mobile operators, mobile virtual network operators, techno-economics, virtual network operators

D. Varoutas; D. Katsianis; Th. Sphicopoulos; K. Stordahl; I. Welling

2006-01-01T23:59:59.000Z

292

Categorical Exclusion Determinations: Idaho Operations Office | Department  

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

March 15, 2010 March 15, 2010 CX-001231: Categorical Exclusion Determination Test Reactor Area-653 Heating, Ventilation, Air Conditioning Modifications CX(s) Applied: B2.1, B2.5 Date: 03/15/2010 Location(s): Idaho Office(s): Idaho Operations Office, Nuclear Energy March 15, 2010 CX-001230: Categorical Exclusion Determination Replace 200,000 Gallon Water Storage Tank at Material Fuels Complex CX(s) Applied: B1.15 Date: 03/15/2010 Location(s): Idaho Office(s): Idaho Operations Office, Nuclear Energy March 11, 2010 CX-001229: Categorical Exclusion Determination Characterization of Fluidized Beds by Pressure Fluctuation Analysis CX(s) Applied: B3.6 Date: 03/11/2010 Location(s): Idaho Office(s): Idaho Operations Office, Nuclear Energy February 23, 2010 CX-000865: Categorical Exclusion Determination

293

Joint torsion of several commuting operators.  

E-Print Network (OSTI)

We introduce the notion of joint torsion for several commuting operators satisfying a Fredholm condition. This new secondary invariant takes values in the group of invertibles of a field. It is constructed by comparing determinants associated with different filtrations of a Koszul complex. Our notion of joint torsion generalizes the Carey-Pincus joint torsion of a pair of commuting Fredholm operators. As an example, under more restrictive invertibility assumptions, we show that the joint torsion recovers the multiplicative Lefschetz numbers. Furthermore, in the case of Toeplitz operators over the polydisc we provide a link between the joint torsion and the Cauchy integral formula. We will also consider the algebraic properties of the joint torsion. They include a cocycle property, a symmetry property, a triviality property and a multiplicativity property. The proof of these results relies on a quite general comparison theorem for vertical and horizontal torsion isomorphisms associated with certain diagrams of chain complexes.

Jens Kaad

294

Matrix representation of the time operator  

SciTech Connect

In quantum mechanics the time operator {Theta} satisfies the commutation relation [{Theta}, H]=i, and thus it may be thought of as being formally canonically conjugate to the Hamiltonian H. The time operator associated with a given Hamiltonian H is not unique because one can replace {Theta} by {Theta}+{Theta}{sub hom}, where {Theta}{sub hom} satisfies the homogeneous condition [{Theta}{sub hom}, H]= 0. To study this nonuniqueness the matrix elements of {Theta} for the harmonic-oscillator Hamiltonian are calculated in the eigenstate basis. This calculation requires the summation of divergent series, and the summation is accomplished by using zeta-summation techniques. It is shown that by including appropriate homogeneous contributions, the matrix elements of {Theta} simplify dramatically. However, it is still not clear whether there is an optimally simple representation of the time operator.

Bender, Carl M. [Department of Physics, Kings College London, Strand, London WC2R 1LS (United Kingdom); Gianfreda, Mariagiovanna [Dipartimento di Matematica e Fisica, Universita del Salento and I.N.F.N. Sezione di Lecce, Via Arnesano, I-73100 Lecce (Italy)

2012-06-15T23:59:59.000Z

295

Optimal operation of chiller system using fuzzy control  

Science Conference Proceedings (OSTI)

Preservation of comfort conditions for buildings' occupants and minimization of energy consumption and cost are the main targets of the energy and indoor environment management systems. This paper aims to achieve those targets by presenting the optimal ... Keywords: air-conditioning system, chilling system, fuzzy control, fuzzy rules, fuzzy sets, membership function, optimal operation

Zazilah May; Nursyarizal Mohd Nor; Kamaruzaman Jusoff

2011-02-01T23:59:59.000Z

296

Computer-Aided Design of Materials for High-Temperature Operating...  

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

Physics Building College Station, TX 77843-3116 979-862-4552 krajagopal@tamu.edu Computer-Aided design of mAteriAls for HigH-temperAture operAting Conditions Description...

297

Method and apparatus of assessing down-hole drilling conditions  

DOE Patents (OSTI)

A method and apparatus for use in assessing down-hole drilling conditions are disclosed. The apparatus includes a drill string, a plurality of sensors, a computing device, and a down-hole network. The sensors are distributed along the length of the drill string and are capable of sensing localized down-hole conditions while drilling. The computing device is coupled to at least one sensor of the plurality of sensors. The data is transmitted from the sensors to the computing device over the down-hole network. The computing device analyzes data output by the sensors and representative of the sensed localized conditions to assess the down-hole drilling conditions. The method includes sensing localized drilling conditions at a plurality of points distributed along the length of a drill string during drilling operations; transmitting data representative of the sensed localized conditions to a predetermined location; and analyzing the transmitted data to assess the down-hole drilling conditions.

Hall, David R. (Provo, UT); Pixton, David S. (Lehl, UT); Johnson, Monte L. (Orem, UT); Bartholomew, David B. (Springville, UT); Fox, Joe (Spanish Fork, UT)

2007-04-24T23:59:59.000Z

298

Racing for conditional independence inference  

Science Conference Proceedings (OSTI)

In this article, we consider the computational aspects of deciding whether a conditional independence statement t is implied by a list of conditional independence statements L using the implication related to the method of structural imsets. ...

Remco R. Bouckaert; Milan Studenż

2005-07-01T23:59:59.000Z

299

IBRD Operational Decision Framework  

SciTech Connect

The IBRD Operational Decision Framework in this document is an expansion of an emerging general risk management framework under development by an interagency working group. It provides the level of detail necessary to develop a general Consequence Management Guidance Document for biological contamination remediation and restoration. It is the intent of this document to support both wide area and individual site remediation and restoration activities. This product was initiated as a portion of the IBRD Task 1 Systems Analysis to aid in identification of wide area remediation and restoration shortcomings and gaps. The draft interagency general risk management framework was used as the basis for the analysis. The initial Task 1 analysis document expanded the draft interagency framework to a higher level of resolution, building on both the logic structure and the accompanying text explanations. It was then employed in a qualitative manner to identify responsible agencies, data requirements, tool requirements, and current capabilities for each decision and task. This resulted in identifying shortcomings and gaps needing resolution. Several meetings of a joint LLNL/SNL working group reviewed and approved the initial content of this analysis. At the conclusion of Task 1, work continued on the expanded framework to generate this Operational Decision Framework which is consistent with the existing interagency general risk management framework. A large LLNL task group met repeatedly over a three-month period to develop the expanded framework, coordinate the framework with the biological remediation checklist, and synchronize the logic with the Consequence Management Plan table of contents. The expanded framework was briefed at a large table top exercise reviewing the interagency risk management framework. This exercise had representation from major US metropolitan areas as well as national agencies. This product received positive comments from the participants. Upon completion of the Operational Decision Framework, another joint LLNL/SNL working group conducted a day-long review. Identified modifications were made to the document, resulting in the included product.

Greenwalt, R; Hibbard, W; Raber, E; Carlsen, T; Folks, K; MacQueen, D; Mancieri, S; Bunt, T; Richards, J; Hirabayashi-Dethier, J

2010-11-12T23:59:59.000Z

300

Equipment Operational Requirements  

SciTech Connect

The Iraq Department of Border Enforcement is rich in personnel, but poor in equipment. An effective border control system must include detection, discrimination, decision, tracking and interdiction, capture, identification, and disposition. An equipment solution that addresses only a part of this will not succeed, likewise equipment by itself is not the answer without considering the personnel and how they would employ the equipment. The solution should take advantage of the existing in-place system and address all of the critical functions. The solutions are envisioned as being implemented in a phased manner, where Solution 1 is followed by Solution 2 and eventually by Solution 3. This allows adequate time for training and gaining operational experience for successively more complex equipment. Detailed descriptions of the components follow the solution descriptions. Solution 1 - This solution is based on changes to CONOPs, and does not have a technology component. It consists of observers at the forts and annexes, forward patrols along the swamp edge, in depth patrols approximately 10 kilometers inland from the swamp, and checkpoints on major roads. Solution 2 - This solution adds a ground sensor array to the Solution 1 system. Solution 3 - This solution is based around installing a radar/video camera system on each fort. It employs the CONOPS from Solution 1, but uses minimal ground sensors deployed only in areas with poor radar/video camera coverage (such as canals and streams shielded by vegetation), or by roads covered by radar but outside the range of the radar associated cameras. This document provides broad operational requirements for major equipment components along with sufficient operational details to allow the technical community to identify potential hardware candidates. Continuing analysis will develop quantities required and more detailed tactics, techniques, and procedures.

Greenwalt, B; Henderer, B; Hibbard, W; Mercer, M

2009-06-11T23:59:59.000Z

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


301

Entanglement quantification by local unitary operations  

SciTech Connect

Invariance under local unitary operations is a fundamental property that must be obeyed by every proper measure of quantum entanglement. However, this is not the only aspect of entanglement theory where local unitary operations play a relevant role. In the present work we show that the application of suitable local unitary operations defines a family of bipartite entanglement monotones, collectively referred to as ''mirror entanglement.'' They are constructed by first considering the (squared) Hilbert-Schmidt distance of the state from the set of states obtained by applying to it a given local unitary operator. To the action of each different local unitary operator there corresponds a different distance. We then minimize these distances over the sets of local unitary operations with different spectra, obtaining an entire family of different entanglement monotones. We show that these mirror-entanglement monotones are organized in a hierarchical structure, and we establish the conditions that need to be imposed on the spectrum of a local unitary operator for the associated mirror entanglement to be faithful, i.e., to vanish in and only in separable pure states. We analyze in detail the properties of one particularly relevant member of the family, the ''stellar mirror entanglement'' associated with the traceless local unitary operations with nondegenerate spectra and equispaced eigenvalues in the complex plane. This particular measure generalizes the original analysis of S. M. Giampaolo and F. Illuminati [Phys. Rev. A 76, 042301 (2007)], valid for qubits and qutrits. We prove that the stellar entanglement is a faithful bipartite entanglement monotone in any dimension and that it is bounded from below by a function proportional to the linear entropy and from above by the linear entropy itself, coinciding with it in two- and three-dimensional spaces.

Monras, A.; Giampaolo, S. M.; Gualdi, G.; Illuminati, F. [Dipartimento di Matematica e Informatica, Universita degli Studi di Salerno, CNISM, Unita di Salerno, and INFN, Sezione di Napoli-Gruppo Collegato di Salerno, Via Ponte don Melillo, I-84084 Fisciano (Italy); Adesso, G.; Davies, G. B. [School of Mathematical Sciences, University of Nottingham, University Park, Nottingham NG7 2RD (United Kingdom)

2011-07-15T23:59:59.000Z

302

Automobile air-conditioning unit. Final report  

SciTech Connect

In this study the refrigerant in the automobile air-conditioner is compressed by thermal energy in a unique compression system rather than by work in a standard compressor. The compression uses an intermittent compression process with a solid absorbent. The vapor is absorbed by an absorbent at relatively low temperature and ejected as the absorbent temperature is raised. A set of one way valves limits flow to one direction. Major contributions are heat transfer requirements, molecular sieve-refrigerant matching, minimizing non-producing mass, solving thermal fatigue and shock problems, and applying this to automobile air-conditioning. The performance study shows energy savings up to fifty percent are possible, depending on engine load. A twenty percent energy savings with the vehicle tested with the air-conditioner in operation is average. The study also showed that less fuel is used with the windows open than with the air-conditioner operating.

Schaetzle, W.J.

1982-12-01T23:59:59.000Z

303

An examination of the consequences in high consequence operations  

SciTech Connect

Traditional definitions of risk partition concern into the probability of occurrence and the consequence of the event. Most safety analyses focus on probabilistic assessment of an occurrence and the amount of some measurable result of the event, but the real meaning of the ``consequence`` partition is usually afforded less attention. In particular, acceptable social consequence (consequence accepted by the public) frequently differs significantly from the metrics commonly proposed by risk analysts. This paper addresses some of the important system development issues associated with consequences, focusing on ``high consequence operations safety.``

Spray, S.D.; Cooper, J.A.

1996-06-01T23:59:59.000Z

304

Energy conditions and their implications  

E-Print Network (OSTI)

Energy conditions and their implications Matt Visser Physics Department Washington University Saint;#16;s (Los Alamos) Midwest Relativity 9 November 1999. #12; Abstract: The energy conditions of general- itational #12;elds and cosmological geometries. However, the energy conditions are beginning to look a lot

Visser, Matt

305

INDEPENDENT ELECTRICITY SYSTEM OPERATOR  

E-Print Network (OSTI)

The Board of Directors of the Independent Electricity System Operator (IESO) has adopted this Charter as part of its commitment to high standards of corporate governance in pursuing the objects of the IESO set out in the Electricity Act, 1998. This Charter describes the Boardís mandate, accountability and composition, and sets out a specific Code of Conduct for the Board. More detailed information about the IESOís corporate governance is set out in the Governance and Structure By?law and in corporate policies, notably the Terms of Reference for a Director. The activities of the Board and its Committees are formally recorded in minutes of meetings. MANDATE The Board shall manage and supervise the management of the IESOís business and affairs and shall provide insight, input into and oversight of the development of the IESOís strategic direction. More specifically, the Boardís mandate includes: periodically reviewing with Management: the strategic environment; the emergence of new risks and opportunities and the implications of such risks and opportunities for the IESOís strategic direction; and the establishment and operation of the IESO?administered markets to promote the purposes of the Electricity Act, 1998 including, without limitation, making market rules and amendments thereto; approving strategic plans that take into account the IESOís major risks and opportunities and overseeing the management of those risks; 2 appointing, monitoring and assessing the performance of the Chief Executive

unknown authors

2009-01-01T23:59:59.000Z

306

Program Operations Plan  

SciTech Connect

The Department of Energy's Atmospheric Chemistry Program (ACP) was initiated in 1991 to coordinate DOE's university and federal-laboratory atmospheric-chemistry research, and to focus these efforts on national and international information requirements in the atmospheric-chemistry field. This Program Operations Plan describes the structure and vision of the effort designed to fulfill these needs, and is divided into two major components. The first of these is a Strategic Plan, which outlines the ACP's rationale, objectives, and vision, and describes its products that are anticipated over a future ten-year period. Although based on realistic appraisals of goals that are attainable given the financial, material, and intellectual resources of the ACP community, this Strategic Plan does not describe these resources themselves. The second component of the Program Operations Plan, the Implementation Plan, deals directly with these resource considerations. As such it focuses on practical implementation of Strategic-Plan elements at the individual research institutions, the anticipated scientific contributions of these groups, and their coordination within the ACP. In contrast to the Strategic Plan, this Implementation Plan extends only five years into the future.

1993-04-01T23:59:59.000Z

307

Operating experience at CEBAF  

Science Conference Proceedings (OSTI)

CEBAF, the Continuous Electron Beam Accelerator Facility, is a 5-pass, recirculating, superconducting rf linac designed to provide exceptional beam quality at 4 GeV up to 200 {mu}A CW. It is made up of an injector, two 400-MeV linacs, and 9 recirculation arcs having a total beamline length of more than 4.5 km. On Nov. 5, 1995, CEBAF delivered a 4 GeV, 25-{mu}A CW electron beam to the first of 3 experimental halls and the experimental physics program was started 10 days later. Accelerator availability during the first month of the experimental run exceeded 75%. Beam properties measured in the experimental hall to date are a one sigma momentum spread of 5{times}10{sup -5} and an rms emittance of 0.2 nanometer-radians, better than design specification. CW beam has been provided from all 5 passes at 800 MeV intervals. Outstanding performance of the superconducting linacs suggests a machine energy upgrade to 6 GeV in the near term with eventual machine operation at 8-10 GeV. Results from commissioning and operations experience since the last conference are presented.

Legg, R.

1996-07-01T23:59:59.000Z

308

Mobile marine operations structure  

SciTech Connect

This patent describes the process of installing a marine operations structure in a pre-determined sea floor location. The structure has a central core and a support base having at least two differently sloped ice wall surfaces for achieving fracturing of ice features, and having at least two series of circumferentially arranged ballast tanks. It consists of positioning the structure over a selected sea floor location by the use of at least three tug boats connected to the structure by tension cables arranged radially with respect to the structure; flooding a first series of lower ballast tanks in a sequential ballasting operation; flooding a second series of ballast tanks located at a higher elevation within the structure than the first series of ballast tanks; maintaining radial forces along the tension cables during the flooding steps; and after the structure has become founded on the bottom of the sea, pumping sea waver into fluid tanks some of which are located at an elevation above the water level.

Bhalaik, A.; Braddick, P.W.; Brittin, D.S.; Johnson, G.L.

1987-09-22T23:59:59.000Z

309

Partially Shaded Operation of a Grid-Tied PV System: Preprint  

SciTech Connect

This paper presents background and experimental results from a single-string grid-tied PV system, operated under a variety of shading conditions.

Deline, C.

2009-06-01T23:59:59.000Z

310

An Innovative Method for Dynamic Characterization of Fan Filter Unit Operation.  

E-Print Network (OSTI)

transformer, and additional accessories attached to the unit. 6.5 Ambient conditionstransformer when applicable. Total electric power demand can be measured and characterized for any operable condition -

Xu, Tengfang

2006-01-01T23:59:59.000Z

311

DOE-STD-1073-93-Pt. 1; DOE Standard Guide for Operational Configuratio...  

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

1 November 1993 DOE STANDARD GUIDE FOR OPERATIONAL CONFIGURATION MANAGEMENT PROGRAM Including the Adjunct Programs of Design Reconstitution and Material Condition and Aging...

312

Sommerfeld radiation condition at threshold  

E-Print Network (OSTI)

We prove Besov space bounds of the resolvent at low energies in any dimension for a class of potentials that are negative and obey a virial condition with these conditions imposed at infinity only. We do not require spherical symmetry. The class of potentials includes in dimension $\\geq3$ the attractive Coulomb potential. There are two boundary values of the resolvent at zero energy which we characterize by radiation conditions. These radiation conditions are zero energy versions of the well-known Sommerfeld radiation condition.

Erik Skibsted

2011-06-23T23:59:59.000Z

313

Conditions on Electric Power Generation  

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

and California (CAL). We pay special attention to interdependencies among hydropower and thermal power plant operations because hydropower plants may provide up to 40% of the WECC...

314

Motor current signature analysis method for diagnosing motor operated devices  

DOE Patents (OSTI)

A motor current noise signature analysis method and apparatus for remotely monitoring the operating characteristics of an electric motor-operated device such as a motor-operated valve. Frequency domain signal analysis techniques are applied to a conditioned motor current signal to distinctly identify various operating parameters of the motor driven device from the motor current signature. The signature may be recorded and compared with subsequent signatures to detect operating abnormalities and degradation of the device. This diagnostic method does not require special equipment to be installed on the motor-operated device, and the current sensing may be performed at remote control locations, e.g., where the motor-operated devices are used in accessible or hostile environments.

Haynes, Howard D. (Kingston, TN); Eissenberg, David M. (Oak Ridge, TN)

1990-01-01T23:59:59.000Z

315

Importance of Design Conditions for Sizing Air-Conditioning Plant  

E-Print Network (OSTI)

Design conditions based on the meteorological data collected at two weather stations located less than 10 km away from each other within Kuwait City are presented for dry-bulb temperature (DBT) and web-bulb temperature (WBT) prioritization. The proposed design conditions specific to the location and the application are drastically different than currently used single design conditions for all application and locations. Cooling load estimates fro two building located in Kuwait have been analyzed for the proposed and the current design conditions to highlight over- or under-sizing the air-conditioning (A/C) plant capacity. Finally, a number of recommendations are made for architects and designers to use proper design conditions to ensure year-round comfort and energy conservation.

Shaban, N.; Maheshwari, G. P.; Suri, R. K.

2000-01-01T23:59:59.000Z

316

TYPE OF OPERATION  

Office of Legacy Management (LM)

Owner c:ontacted Owner c:ontacted TYPE OF OPERATION ----------------_ jJ Research & Development 0 Production scale testing Cl Pilot Scale 0 Bench Scale Process i Theoretical Studies Sample & Analysis B Production 0 Disposal/Storage $r Prime 0 Subcontract& 0 Purchase Order 0 Facility Type 0 Manufacturing 0 University 0 Research Organization a Other information (i.e., cost + fixed fern, unit price,' time & mate ~r~~-r~~tf~-_~_-_~-~f-~~J~ d ial, etc)_kl/Jlfits ---- -7---- -- Contract/Purchase Order # w?@7-e?-b $ 6, i;,_~~~~~----------------- - ----- C_O!!IF!KXYE-PEELEg: -lTlL-/L?~J --------------------------- OWNERSHXP: AEWHEC AEC/HED' GOVT GB' JT SiXiRACTOR CONiRkCiGR WEE LEAs_EE a!!!%? IEEE!? --------_ ..---LEASED ._ OWNED LANDS BUILDINGS EQUIPMENT

317

Mechanical Operations and Maintenance  

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

Holiday Work Status Holiday Work Status Mechanical Operations & Maintenance Group APS Storage Ring Magnets The Advanced Photon Source (APS) at the Argonne National Laboratory is a national synchrotron-radiation research facility funded by the U.S. Department of Energy. Using high-brilliance x-ray beams from the APS, an international community of scientists conducts forefront basic and applied research in the fields of material science, biological science, physics, chemistry, environmental, geophysical and planetary science. The 1.1-km circumference APS facility consists of several major subsystems including magnets, vacuum chambers, radio-frequency cavities, diagnostics instrumentation, x-ray absorbers and apertures, and cooling water subsystems. Each of these subsystems contains hundreds of mechanical

318

GARS Operations Newsletter G  

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

1 1 GARS Operations Newsletter G l o b a l a n d R e g i o n a l S o l u t i o n s D i r e c t o r a t e V OLUME 2 , ISSUE 1 Safety Solutions and Pollution Prevention Proposals Congratulations to Barbara Roland of the Nonproliferation and National Security Dept.! Barbara's Safety Solution proposal has been funded. To improve personnel safety in Building 197 during emergency situations, she suggested that pathway markers be positioned on the hallway walls to help locate the Indoor Assembly Areas and Evacuation routes. Light mo- tion detectors for "common areas" in several of our buildings was also funded. This idea sprung from a suggestion received during our Director- ate Safety Stand Down in 2009. This will improve safety and conserve energy too. Remember to send us your suggestions for next year!

319

RHIC Polarized proton operation  

DOE Green Energy (OSTI)

The Relativistic Heavy Ion Collider (RHIC) operation as the polarized proton collider presents unique challenges since both luminosity(L) and spin polarization(P) are important. With longitudinally polarized beams at the experiments, the figure of merit is LP{sup 4}. A lot of upgrades and modifications have been made since last polarized proton operation. A 9 MHz rf system is installed to improve longitudinal match at injection and to increase luminosity. The beam dump was upgraded to increase bunch intensity. A vertical survey of RHIC was performed before the run to get better magnet alignment. The orbit control is also improved this year. Additional efforts are put in to improve source polarization and AGS polarization transfer efficiency. To preserve polarization on the ramp, a new working point is chosen such that the vertical tune is near a third order resonance. The overview of the changes and the operation results are presented in this paper. Siberian snakes are essential tools to preserve polarization when accelerating polarized beams to higher energy. At the same time, the higher order resonances still can cause polarization loss. As seen in RHIC, the betatron tune has to be carefully set and maintained on the ramp and during the store to avoid polarization loss. In addition, the orbit control is also critical to preserve polarization. The higher polarization during this run comes from several improvements over last run. First we have a much better orbit on the ramp. The orbit feedback brings down the vertical rms orbit error to 0.1mm, much better than the 0.5mm last run. With correct BPM offset and vertical realignment, this rms orbit error is indeed small. Second, the jump quads in the AGS improved input polarization for RHIC. Third, the vertical tune was pushed further away from 7/10 snake resonance. The tune feedback maintained the tune at the desired value through the ramp. To calibrate the analyzing power of RHIC polarimeters at any energy above injection, the polarized hydrogen jet target runs for every fill with both beams. Based on the known analyzing power, there is very little polarization loss between injection and 100 GeV. An alternative way is to measure the asymmetry at 100 GeV followed by ramping up to 250 GeV and back down to 100 GeV and then to measure the asymmetry again at 100 GeV. If the asymmetry after the down ramp is similar to the measurement before the up ramp, polarization was also preserved during the ramp to 250 GeV. The analyzing power at storage energy can then be extracted from the asymmetries measured at 100 GeV and 250 GeV. The tune and orbit feedbacks are essential for the down ramp to be possible. The polarized proton operation is still going on. We will push bunch intensity higher until reaching the beam-beam limit. The even higher intensity will have to wait for the electron lenses to compensate the beam-beam effect. To understand the details of spin dynamics in RHIC with two snakes, spin simulation with the real magnet fields have been developed recently. The study will provide guidance for possible polarization loss schemes. Further polarization gain will requires a polarized source upgrade; more careful setup jump quads in the AGS to get full benefit; and control emittance in the whole accelerator chain.

Huang, H.; Ahrens, L.; Alekseev, I.G.; Aschenauer, E.; Atoian, G.; Bai, M.; Bazilevsky, A.; Blaskiewicz, M.; Brennan, J.M.; Brown, K.A.; Bruno, D.; Connolly, R.; Dion, A.; D'Ottavio, T.; Drees, K.A.; Fischer, W.; Gardner, C.; Glenn, J.W.; Gu, X.; Harvey, M.; Hayes, T.; Hoff, L.; Hulsart, R.L.; Laster, J.; Liu, C.; Luo, Y.; MacKay, W.W.; Makdisi, Y.; Marr, G.J.; Marusic, A.; Meot, F.; Mernick, K.; Michnoff, R,; Minty, M.; Montag, C.; Morris, J.; Nemesure, S.; Poblaguev, A.; Ptitsyn, V.; Ranjibar, V.; Robert-Demolaize, G.; Roser, T.; J.; Severino, F.; Schmidke, B.; Schoefer, V.; Severino, F.; Smirnov, D.; Smith, K.; Steski, D.; Svirida, D.; Tepikian, S.; Trbojevic, D.; Tsoupas, N.; Tuozzolo, J. Wang, G.; Wilinski, M.; Yip, K.; Zaltsman, A.; Zelenski, A.; Zeno, K.; Zhang, S.Y.

2011-03-28T23:59:59.000Z

320

TYPE OF OPERATION  

Office of Legacy Management (LM)

OWNEF? (S) OWNEF? (S) Current: ____ LcrcJksLG! _________ Owner contacted n yes WI-IO; if yes, date contacted-- TYPE OF OPERATION ----_-------_---- m Research & Development Cl Pilot Scale Cl Disposal/Storaqe TYPE OF CDNTRACT ---__------__--- q Prime 0 Subcnntractor Cl Purchase Order 0 Other infcrmation (i.e., cnst + fixed fee, unit price, time 84 materi+, e.tc) v-7Y07-&G-W ---------------------------- Contract/Pur&aae Order # 0 -?+7- FJc-(CL --___--------~----_______________ CONTRACTING PEXIOD: fl& ,&I;'"'-?;': (&e-?)_-- ' ------------------ OWNERSHIP: AEC/MED GEC/MED SOVT GOVT CONTRACTOR CCNTRACTOR OWNE3 LEASE3 OWNE3 LEASED OWNE3 ----- ------ ----- ------ -__------- LE.352 LANDS u u q BUILDINGS EQUIPMENT 0 FINAL PRODUCT WASTE G RESIDUE a

Note: This page contains sample records for the topic "usual operating conditions" 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

TYPE OF OPERATION  

Office of Legacy Management (LM)

3!NEEi_S1 3!NEEi_S1 past: -~~~-~~~~~-~~~---------- current: ------------_------------- Owner contacted q yes g no; if ye=, date contacted TYPE OF OPERATION --~~__--~-~~~---- 5 Research & Development 5 Facility Type 0 Production scale testing c1 Pilot Scale 0 Bench Scale Process z Theareti cal Studi es Sample Sr Analysis 0 Production D Disposal/Storage TYPE OF CONTRACT ---------------- 0 Manufacturing 0 University 0 Research Clrganization B Government Cpanaored Faci 1 i ty 0 Other ~~---~~---_--~~-----_ a Prime 13 Subcontract& D PurcSase Order 0 Other information (i.e., cost + fixed fee, unit price, time & material, +z) ----_----------------------- Cantract/Purchaae Order #-d-z=&-/) -2_7~-------------Is_------------ PERIOD: CONTRACTING I%~(?) - 1465

322

Albuquerque Operations Office  

Office of Legacy Management (LM)

%r © J~4 %r © J~4 aDepartment of Energy Albuquerque Operations Office P.O. Box 5400 Albuquerue. New Mexico 87118 JUIl 0 198 Vicinity Property No. CA-401 _ U l Address; Mayer Street Bridgeville, Pennsylvania Cyclops Corporation 650 Washington Road Pittsburgh, Pennsylvania 15228 Dear Sir: Under the Uranium Mill Tailings Radiation Control Act of 1978, Public Law 95-604, the Department of Energy (DOE) is authorized to conduct remedial action at properties contaminated with residual radioactive material from inactive uranium mill sites. Evaluation of your property identified above has revealed the presence of residual radioactive material in excess of standards established by the Environmental Protection Agency (EPA). Therefore, your property has been formally included by DOE for remedial action in the Uranium Mill Tailings

323

LANDFILL OPERATION FOR CARBON SEQUESTRATION AND MAXIMUM METHANE EMISSION CONTROL  

Science Conference Proceedings (OSTI)

Controlled landfilling is an approach to manage solid waste landfills, so as to rapidly complete methane generation, while maximizing gas capture and minimizing the usual emissions of methane to the atmosphere. With controlled landfilling, methane generation is accelerated to more rapid and earlier completion to full potential by improving conditions (principally moisture, but also temperature) to optimize biological processes occurring within the landfill. Gas is contained through use of surface membrane cover. Gas is captured via porous layers, under the cover, operated at slight vacuum. A field demonstration project has been ongoing under NETL sponsorship for the past several years near Davis, CA. Results have been extremely encouraging. Two major benefits of the technology are reduction of landfill methane emissions to minuscule levels, and the recovery of greater amounts of landfill methane energy in much shorter times, more predictably, than with conventional landfill practice. With the large amount of US landfill methane generated, and greenhouse potency of methane, better landfill methane control can play a substantial role both in reduction of US greenhouse gas emissions and in US renewable energy. The work described in this report, to demonstrate and advance this technology, has used two demonstration-scale cells of size (8000 metric tons [tonnes]), sufficient to replicate many heat and compaction characteristics of larger ''full-scale'' landfills. An enhanced demonstration cell has received moisture supplementation to field capacity. This is the maximum moisture waste can hold while still limiting liquid drainage rate to minimal and safely manageable levels. The enhanced landfill module was compared to a parallel control landfill module receiving no moisture additions. Gas recovery has continued for a period of over 4 years. It is quite encouraging that the enhanced cell methane recovery has been close to 10-fold that experienced with conventional landfills. This is the highest methane recovery rate per unit waste, and thus progress toward stabilization, documented anywhere for such a large waste mass. This high recovery rate is attributed to moisture, and elevated temperature attained inexpensively during startup. Economic analyses performed under Phase I of this NETL contract indicate ''greenhouse cost effectiveness'' to be excellent. Other benefits include substantial waste volume loss (over 30%) which translates to extended landfill life. Other environmental benefits include rapidly improved quality and stabilization (lowered pollutant levels) in liquid leachate which drains from the waste.

Don Augenstein; Ramin Yazdani; Rick Moore; Michelle Byars; Jeff Kieffer; Professor Morton Barlaz; Rinav Mehta

2000-02-26T23:59:59.000Z

324

Operation Diagnostics: Use of Visualization Techniques and Operation  

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

Operation Diagnostics: Use of Visualization Techniques and Operation Operation Diagnostics: Use of Visualization Techniques and Operation Patterns to Verify and Optimize Dynamic Building and System Operation Speaker(s): Oliver Baumann Date: December 7, 2004 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Peng Xu Building automation systems (BAS) and building energy management systems (BEMS) have been used in modern edifices for the last 2 decades. These systems measure, process, and monitor a huge amount of data to operate the building and systems more or less properly. Often, the data is only used to signal failures or break-downs of systems or components. Further information of the data to analyze and diagnose the building operation is not used due to the lack of analysis methods and tools. Within the Operation Diagnostics, different visualization techniques are applied to

325

Top 100 Operators: Proved Reserves and Production, Operated vs...  

Annual Energy Outlook 2012 (EIA)

Total Operators: Roughly 14,000 Natural Gas: 252 Tcf (89% of U.S. Total) Source: U.S. Energy Information Administration Top 100 Operators: Proved Reserves and Production,...

326

Electro Catalytic Oxidation (ECO) Operation  

Science Conference Proceedings (OSTI)

The power industry in the United States is faced with meeting many new regulations to reduce a number of air pollutants including sulfur dioxide, nitrogen oxides, fine particulate matter, and mercury. With over 1,000 power plants in the US, this is a daunting task. In some cases, traditional pollution control technologies such as wet scrubbers and SCRs are not feasible. Powerspan's Electro-Catalytic Oxidation, or ECO{reg_sign} process combines four pollution control devices into a single integrated system that can be installed after a power plant's particulate control device. Besides achieving major reductions in emissions of sulfur dioxide (SO{sub 2}), nitrogen oxides (NOx), fine particulate matter (PM2.5) and mercury (Hg), ECO produces a highly marketable fertilizer, which can help offset the operating costs of the process system. Powerspan has been operating a 50-MW ECO commercial demonstration unit (CDU) at FirstEnergy Corp.'s R.E. Burger Plant near Shadyside, Ohio, since February 2004. In addition to the CDU, a test loop has been constructed beside the CDU to demonstrate higher NOx removal rates and test various scrubber packing types and wet ESP configurations. Furthermore, Powerspan has developed the ECO{reg_sign}{sub 2} technology, a regenerative process that uses a proprietary solvent to capture CO{sub 2} from flue gas. The CO{sub 2} capture takes place after the capture of NOx, SO{sub 2}, mercury, and fine particulate matter. Once the CO{sub 2} is captured, the proprietary solution is regenerated to release CO{sub 2} in a form that is ready for geological storage or beneficial use. Pilot scale testing of ECO{sub 2} began in early 2009 at FirstEnergy's Burger Plant. The ECO{sub 2} pilot unit is designed to process a 1-MW flue gas stream and produce 20 tons of CO{sub 2} per day, achieving a 90% CO{sub 2} capture rate. The ECO{sub 2} pilot program provided the opportunity to confirm process design and cost estimates, and prepare for large scale capture and sequestration projects. The objectives of this project were to prove at a commercial scale that ECO is capable of extended operations over a range of conditions, that it meets the reliability requirements of a typical utility, and that the fertilizer co-product can be consistently generated, providing ECO with an economic advantage over conventional technologies currently available. Further objectives of the project were to show that the ECO system provides flue gas that meets the inlet standards necessary for ECO{sub 2} to operate, and that the outlet CO{sub 2} and other constituents produced by the ECO{sub 2} pilot can meet Kinder-Morgan pipeline standards for purposes of sequestration. All project objectives are consistent with DOE's Pollution Control Innovations for Power Plants program goals.

Morgan Jones

2011-03-31T23:59:59.000Z

327

LFS Exhibit B Special Conditions  

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

B (Rev. 9, 12/13/12) Exhibit B Special Conditions B (Rev. 9, 12/13/12) Exhibit B Special Conditions Dated 5-20-13 Subcontract No. 241314 Page 1 of 11 EXHIBIT "B" SPECIAL CONDITIONS TABLE OF CONTENTS SC Title Page SC-2 AUTHORITY OF PERSONNEL (Apr 2012) ............................................................................... 2 SC-3A COMMENCEMENT, PROGRESS AND COMPLETION OF THE WORK (Jun 2009 - Deviation) ................................................................................................................................... 3 SC-10B INSURANCE REQUIREMENTS (Jan 2010) ............................................................................. 3 SC-11B INVOICING AND PAYMENT (Mar 2012) .................................................................................. 5

328

CPFFS Exhibit A General Conditions  

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

2, 6/14/13) Exhibit A General Conditions 2, 6/14/13) Exhibit A General Conditions Page 1 of 20 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

329

EFS Exhibit A General Conditions  

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

2, 6/14/13) Exhibit A General Conditions 2, 6/14/13) Exhibit A General Conditions Page 1 of 26 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2 AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Apr 2013) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

330

SFS Exhibit A General Conditions  

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

2, 6/14/13) Exhibit A General Conditions 2, 6/14/13) Exhibit A General Conditions Page 1 of 16 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

331

EFS Exhibit A General Conditions  

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

1, 4/9/13) Exhibit A General Conditions 1, 4/9/13) Exhibit A General Conditions Page 1 of 39 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2 AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Apr 2013) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

332

AES Exhibit A General Conditions  

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

2, 6/14/13) Exhibit A General Conditions 2, 6/14/13) Exhibit A General Conditions Page 1 of 18 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

333

SFS Exhibit A General Conditions  

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

1, 4/9/13) Exhibit A General Conditions 1, 4/9/13) Exhibit A General Conditions Page 1 of 29 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

334

LCLS Operating Schedule  

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

LCLS Operating Schedule LCLS Operating Schedule August - December 2009 Ver: 2 10/30/09 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 S Su M T W Th F S Su M T W Th F S Su M T W Th F S Su M T W Th F S Su M 0000-0800 MD MD MD MD MD 0800-1600 ROD MD AMO ROD MD AMO 1600-2400 MD MD Commissioning MD MD Comm. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 T W Th F S Su M T W Th F S Su M T W Th F S Su M T W Th F S Su M T W 0000-0800 MD MD MD MD MD MD MD MD MD 0800-1600 MD ROD AMO MD ROD AMO MD ROD AMO MD ROD AMO ROD 1600-2400 MD MD Commissioning MD MD Commissioning MD MD Commissioning MD MD Commissioning MD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Th F S Su M T W Th F S Su M T W Th F S Su M T W Th F S Su M T W Th F S 0000-0800 MD MD MD MD MD MD MD MD MD 0800-1600 Young MD ROD DiMauro MD ROD Berrah MD ROD Coffee MD ROD Young-II 1600-2400 L018 MD MD L026 MD MD L015 MD MD L027 MD MD L017 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Su

335

PNNL Electricity Infrastructure Operations Center | Open Energy...  

Open Energy Info (EERE)

Electricity Infrastructure Operations Center Jump to: navigation, search Logo: Electricity Infrastructure Operations Center Name Electricity Infrastructure Operations Center...

336

Hanford Identification (HID) PIA, Richland Operations Office...  

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

Identification (HID) PIA, Richland Operations Office Hanford Identification (HID) PIA, Richland Operations Office Hanford Identification (HID) PIA, Richland Operations Office...

337

Hanford Identification (HID) PIA, Richland Operations Office...  

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

Hanford Identification (HID) PIA, Richland Operations Office Hanford Identification (HID) PIA, Richland Operations Office Hanford Identification (HID) PIA, Richland Operations...

338

FPC conditioning cart at BNL  

SciTech Connect

The 703 MHz superconducting gun for the BNL Energy Recovery Linac (ERL) prototype has two fundamental power couplers (FPCs), and each of them will deliver up to 500 kW of CW RF power. In order to prepare the couplers for high power RF service and process multipacting, the FPCs should be conditioned prior to installation into the gun cryomodule. A conditioning cart based test stand, which includes a vacuum pumping system, controllable bake-out system, diagnostics, interlocks and data log system has been designed, constructed and commissioned by collaboration of BNL and AES. This paper presents FPC conditioning cart systems and the conditioning process.

Xu, W.; Ben-Zvi, I.; Altinbas, F.Z.; Belomestnykh, S.; Burrill, A.; Cole, M.; Deonarine, J.; Jamilkowski, J.; Kayran, D.; Laloudakis, N.; Masi Jr, L.; McIntyre, G.; Pate, D.; Philips, D.; Seda, T.; Steszyn, A.; Tallerico, T.; Todd, R.; Weiss, D.; White, G.; Zaltsman,†A.

2011-03-28T23:59:59.000Z

339

Optimization of Air Conditioning Cycling.  

E-Print Network (OSTI)

??Systems based on the vapor compression cycle are the most widely used in a variety of air conditioning applications. Despite the vast growth of modernÖ (more)

Seshadri, Swarooph

2012-01-01T23:59:59.000Z

340

Space Conditioning Technology Options for High-Bay Facilities  

Science Conference Proceedings (OSTI)

High-bay facility owners are considering the addition of space conditioning systems and technologies to improve their operations. This trend creates an opportunity for utility representatives to provide sound guidance on space conditioning system selection alternatives and other energy efficiency options to cost-effectively meet the ownerís requirements. This report describes the common heating and cooling technologies applicable to high-bay facilities and analyzes the strengths and weaknesses of each in...

2007-12-18T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Third Northeast Regional Operational Workshop  

Science Conference Proceedings (OSTI)

The Third Northeast Regional Operational Workshop, focusing on hydrometeorology in the northeastern United States, was held 6-7 November 2001 in Albany, New York. Sessions covered cold season events, warm season events, modeling,and operational ...

Eugene P. Auciello

2002-07-01T23:59:59.000Z

342

Closure operators for order structures  

Science Conference Proceedings (OSTI)

We argue that closure operators are fundamental tools for the study of relationships between order structures and their sequence representations. We also propose and analyse a closure operator for interval order structures.

Ryszard Janicki; Dai Tri Man LÍ; Nadezhda Zubkova

2009-09-01T23:59:59.000Z

343

DOE-ID Operations Summary  

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

September 10, 2013 DOE-ID Operations Summary For the Period August 12, 2013 through August 26, 2013 EDITOR'S NOTE: The following is a summary of contractor operations at the Idaho...

344

Operations Analysis - Advanced Photon Source  

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

9700 S. Cass Avenue Argonne, IL 60439 (630) 252-1148 office (630) 252-5703 FAX gfystro@aps.anl.gov Areas of interest Operator training program development Operations Group Wiki...

345

Singular operators in multiwavelet bases  

Science Conference Proceedings (OSTI)

We review some recent results on multiwavelet methods for solving integral and partial differential equations and present an efficient representation of operators using discontinuous multiwavelet bases, including the case for singular integral operators. ...

G. Fann; G. Beylkin; R. J. Harrison; K. E. Jordan

2004-03-01T23:59:59.000Z

346

GARS Operations Newsletter G  

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

October, 2011 October, 2011 GARS Operations Newsletter G l o b a l a n d R e g i o n a l S o l u t i o n s D i r e c t o r a t e V OLUME 2 , ISSUE 2 October is National Fire Safety Month Did you know that Fire Prevention Week was established to commemorate the Great Chicago Fire, the tragic 1871 conflagration that killed more than 250 people, left 100,000 homeless, destroyed more than 17,400 structures and burned more than 2,000 acres. The fire began on October 8, but continued into and did most of its damage on October 9, 1871. According to popular legend, the fire broke out after a cow - belonging to Mrs. Catherine O'Leary - kicked over a lamp, setting first the barn, then the whole city on fire. While the Great Chicago Fire was the best-known blaze to start during this fiery two-day stretch,

347

INDEPENDENT ELECTRICITY SYSTEM OPERATOR  

E-Print Network (OSTI)

adopted this Charter as part of its commitment to high standards of corporate governance in pursuing the objects of the IESO set out in the Electricity Act, 1998. This Charter describes the Boardís mandate, accountability and composition, and sets out a specific Code of Conduct for the Board. More detailed information about the IESOís corporate governance is set out in the Governance and Structure By-law and in corporate policies, notably the Terms Of Reference for A Director. The activities of the Board and its Committees are formally recorded in minutes of meetings. MANDATE The Board shall supervise the management of the IESOís business and affairs and shall take a leadership role in the development of the IESOís strategic direction. More specifically, the Boardís mandate includes: regularly reviewing with Management: the strategic environment, the emergence of new risks and opportunities and the implications for strategic direction; and the establishment and operation of the IESO-administered markets to promote the

unknown authors

2005-01-01T23:59:59.000Z

348

Operational Management | Department of Energy  

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

Management Operational Management Aviation Management Executive Secretariat Energy Reduction at HQ Facilities and Infrastructure Federal Advisory Committee Management Freedom of...

349

Cell Operations and Process Control  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... Aluminum Reduction Technology: Cell Operations and Process Control Sponsored by: TMS Light Metals Division, TMS: Aluminum Committee

350

Strategies for Sustainable Institute Operations  

Science Conference Proceedings (OSTI)

... 2 ? What we heard and read: ? NNMI RFI Responses to sustainability questions ... Blueprint for Action: Sustainable Operations Outline Page 3. ...

2013-01-23T23:59:59.000Z

351

Idle Operating Total Stream Day  

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

3 3 Idle Operating Total Stream Day Barrels per Idle Operating Total Calendar Day Barrels per Atmospheric Crude Oil Distillation Capacity Idle Operating Total Operable Refineries Number of State and PAD District a b b 11 10 1 1,293,200 1,265,200 28,000 1,361,700 1,329,700 32,000 ............................................................................................................................................... PAD District I 1 1 0 182,200 182,200 0 190,200 190,200 0 ................................................................................................................................................................................................................................................................................................ Delaware......................................

352

DOE, Invensys Operations Management to Develop, Deploy Operator Training  

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

DOE, Invensys Operations Management to Develop, Deploy Operator DOE, Invensys Operations Management to Develop, Deploy Operator Training System for Supercritical Coal Power Plants DOE, Invensys Operations Management to Develop, Deploy Operator Training System for Supercritical Coal Power Plants December 10, 2012 - 12:00pm Addthis Washington, DC - A new U.S. Department of Energy (DOE) cooperative research and development agreement to develop, test, and deploy a dynamic simulator and operator training system (OTS) could eventually help commercialize important carbon capture technologies at the nation's power plants. The high-fidelity, real-time OTS for a generic supercritical once-through (SCOT) pulverized-coal power plant will be installed at the National Energy Technology Laboratory's (NETL's) Advanced Virtual Energy Simulation

353

Operating Guidelines Narrative.DOC  

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

Competitive Sourcing Program Operating Guidelines Issued under authority of: Competitive Sourcing Executive Steering Group July 1, 2004 DOE Competitive Sourcing Program OPERATING GUIDELINES (CS-OG-01) i COMPETITIVE SOURCING PROGRAM OPERATING GUIDELINES Table of Contents 1. REFERENCES ................................................................................................................................... 1 2. PURPOSE ........................................................................................................................................... 1 3. APPLICABILITY AND SCOPE ......................................................................................................

354

Operating Guidelines Narrative.DOC  

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

Competitive Sourcing Program Operating Guidelines Issued under authority of: Competitive Sourcing Executive Steering Group July 1, 2004 DOE Competitive Sourcing Program OPERATING GUIDELINES (CS-OG-01) i COMPETITIVE SOURCING PROGRAM OPERATING GUIDELINES Table of Contents 1. REFERENCES ................................................................................................................................... 1 2. PURPOSE ........................................................................................................................................... 1 3. APPLICABILITY AND SCOPE ......................................................................................................

355

Operating Reserves and Variable Generation  

DOE Green Energy (OSTI)

This report tries to first generalize the requirements of the power system as it relates to the needs of operating reserves. It also includes a survey of operating reserves and how they are managed internationally in system operations today and then how new studies and research are proposing they may be managed in the future with higher penetrations of variable generation.

Ela, E.; Milligan, M.; Kirby, B.

2011-08-01T23:59:59.000Z

356

An Operating Raphael A. Finkel  

E-Print Network (OSTI)

An Operating Systems Vade Mecum Raphael A. Finkel University of Wisconsin at Madison Prentice Hall'') is a laboratory manual that guides the student step by step through complex procedures. Operating systems in operating systems at the undergraduate level. The subject has so many individual parts that its

Finkel, Raphael

357

ATTACHMENT E TERMS AND CONDITIONS  

E-Print Network (OSTI)

ATTACHMENT E TERMS AND CONDITIONS TABLE OF CONTENTS SECTION PAGE NO. 1. Vehicle Buy-Down Incentive Program Agreement................................................ 1 2. Term of the Agreement..................................................................................................... 14 #12;TERMS AND CONDITIONS 1. Vehicle Buy-Down Incentive Program Agreement The Vehicle Buy

358

Operations | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

| National Nuclear Security Administration | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Operations Home > About Us > Our Programs > Emergency Response > Responding to Emergencies > Operations Operations NNSA's Emergency Response Operations program acts as the headquarters command and control, functioning as the coordinating focal point for all

359

Operations | National Nuclear Security Administration  

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

| National Nuclear Security Administration | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Operations Home > About Us > Our Programs > Emergency Response > Responding to Emergencies > Operations Operations NNSA's Emergency Response Operations program acts as the headquarters command and control, functioning as the coordinating focal point for all

360

Cyclic Operation of Power Plant: Technical, Operational and Cost Issues -- An International Seminar: Proceedings: ''Two Shifting'' Seminar  

SciTech Connect

Because of changes in demand and competition within the power industry, fossil fuel plants in many countries are now subject to two-shift operation, that is, generating power for 10-15 hours during the day only, usually in combination with a complete shutdown on weekends. Other fossil-fueled units, although running around the clock, need to follow changes in electricity demand. This mode of functioning, in which temperatures and pressures are never stable for more than a few hours, is referred to as ''cyclic operation of plant.'' The aim of the seminar at which these papers were presented was to identify the basic causes of component and equipment problems in two-shift operation, and to begin to identify procedures that could minimize operating and maintenance costs. The papers cover the following topics: Session 1: Plant Operation Experience and Design Issues; Session 2: Materials Issues; Session 3: Cost, Manpower and Management Issues; Session 4: Plant Automation Issues; Session 5: Hot Section Gas Turbine Issues; and Session 6: HRSG [heat recovery steam generator] Issues.

None

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Accelerator Operators and Software Development  

SciTech Connect

At Thomas Jefferson National Accelerator Facility, accelerator operators perform tasks in their areas of specialization in addition to their machine operations duties. One crucial area in which operators contribute is software development. Operators with programming skills are uniquely qualified to develop certain controls applications because of their expertise in the day-to-day operation of the accelerator. Jefferson Lab is one of the few laboratories that utilizes the skills and knowledge of operators to create software that enhances machine operations. Through the programs written; by operators, Jefferson Lab has improved machine efficiency and beam availability. Because many of these applications involve automation of procedures and need graphical user interfaces, the scripting language Tcl and the Tk toolkit have been adopted. In addition to automation, some operator-developed applications are used for information distribution. For this purpose, several standard web development tools such as perl, VBScript, and ASP are used. Examples of applications written by operators include injector steering, spin angle changes, system status reports, magnet cycling routines, and quantum efficiency measurements. This paper summarizes how the unique knowledge of accelerator operators has contributed to the success of the Jefferson Lab control system. *This work was supported by the U.S. DOE contract No. DE-AC05-84-ER40150.

April Miller; Michele Joyce

2001-11-01T23:59:59.000Z

362

Improve safety with pilot operated relief valves  

Science Conference Proceedings (OSTI)

A weakness inherent in balanced bellows pressure relief valves (PRVs) that can cause premature failure can be avoided by using pilot operated PRVs as an alternative. Now better able to handle adverse service conditions, pilot operated PRVs are suitable for a wide range of gas, liquid and mixed-phase services. Traditionally, however, balanced bellows PRVs have been applied as overpressure protection for three notable reasons: a constant PRV set pressure with the presence of variable, superimposed back pressure (at the PRV outlet prior to its opening); valve stability and adequate capacity when built-up back pressure (at the PRV outlet during its relief cycle) exceeds 10%; and spring and guided parts barriered from the process fluid. With these benefits in mind, balanced bellows PRVs have been generally adapted by many hydrocarbon processing companies that have experienced costly, and often dangerous, premature bellows failures. Corrosion, valve instability and/or bellows flutter are causes of these failures.

Emerson, G. [Anderson, Greenwood and Co., Stafford, TX (United States)

1996-10-01T23:59:59.000Z

363

Optimal design and control strategies for novel combined heat and power (CHP) fuel cell systems. Part I of II, datum design conditions and approach.  

SciTech Connect

Energy network optimization (ENO) models identify new strategies for designing, installing, and controlling stationary combined heat and power (CHP) fuel cell systems (FCSs) with the goals of (1) minimizing electricity and heating costs for building owners and (2) reducing emissions of the primary greenhouse gas (GHG) - carbon dioxide (CO{sub 2}). A goal of this work is to employ relatively inexpensive simulation studies to discover more financially and environmentally effective approaches for installing CHP FCSs. ENO models quantify the impact of different choices made by power generation operators, FCS manufacturers, building owners, and governments with respect to two primary goals - energy cost savings for building owners and CO{sub 2} emission reductions. These types of models are crucial for identifying cost and CO{sub 2} optima for particular installations. Optimal strategies change with varying economic and environmental conditions, FCS performance, the characteristics of building demand for electricity and heat, and many other factors. ENO models evaluate both 'business-as-usual' and novel FCS operating strategies. For the scenarios examined here, relative to a base case of no FCSs installed, model results indicate that novel strategies could reduce building energy costs by 25% and CO{sub 2} emissions by 80%. Part I of II articles discusses model assumptions and methodology. Part II of II articles illustrates model results for a university campus town and generalizes these results for diverse communities.

Colella, Whitney G.

2010-06-01T23:59:59.000Z

364

Wind Turbine Drivetrain Condition Monitoring - An Overview (Presentation)  

DOE Green Energy (OSTI)

High operation and maintenance costs still hamper the development of the wind industry despite its quick growth worldwide. To reduce unscheduled downtime and avoid catastrophic failures of wind turbines and their components have been and will be crucial to further raise the competitiveness of wind power. Condition monitoring is one of the key tools for achieving such a goal. To enhance the research and development of advanced condition monitoring techniques dedicated to wind turbines, we present an overview of wind turbine condition monitoring, discuss current practices, point out existing challenges, and suggest possible solutions.

Sheng, S.; Yang, W.

2013-07-01T23:59:59.000Z

365

Realities of Chiller Plant Operation: Utility Impacts on Owner Operating  

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

Realities of Chiller Plant Operation: Utility Impacts on Owner Operating Realities of Chiller Plant Operation: Utility Impacts on Owner Operating Costs and Societal Environmental Issues Speaker(s): Don Aumann Date: March 21, 2000 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Satkartar K. Kinney Don Aumann, a Senior Consultant from BKi in Oakland, will present an overview of two projects he completed for the electric utility industry. The first, a case study evaluation of a hybrid chiller plant in Jefferson City, Missouri, demonstrates the importance of carefully evaluating the impact of utility rate structures on plant operating costs. The building owner, another engineering consultant, and the local utility representatives were confused by the rates and missed an opportunity to cut chiller-plant operating costs by about 20%, totaling $15,000 per year. In

366

Risk-embedded Bayesian acceptance sampling plans via conditional value-at-risk with Type II censoring  

Science Conference Proceedings (OSTI)

An acceptance sampling plan is usually determined by minimizing the expectation of the sum of the relevant costs involved. This expected cost minimization approach, however, could result in a great cost at a probability that is unacceptable to a decision ... Keywords: Bayesian acceptance sampling, Conditional value-at-risk, Life distribution, Reliability, Risk aversion, Type II censoring

Chung-Chi Hsieh, Yu-Ting Lu

2013-08-01T23:59:59.000Z

367

Representation of Conditional Expectations in Gaussian Analysis on Sequence Spaces  

E-Print Network (OSTI)

From a given nuclear triplet we construct a nuclear triplet of sequence spaces and introduce a correlated Gaussian measure via the Bochner-Minlos theorem. Considering special types of correlation operators on such sequence spaces, certain conditional expectations can be given in an explicit way.

Riemann, Felix

2011-01-01T23:59:59.000Z

368

Office of Security Operations: Mission and Functions  

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

Mission and Functions Mission and Functions Mission The Office of Headquarters Security Operations strengthens national security by protecting personnel, facilities, property, classified information, and sensitive unclassified information for DOE Headquarters facilities in the National Capital Area under normal and abnormal (i.e., emergency) conditions; managing access authorization functions; ensuring that executives and dignitaries are fully protected, and supporting efforts to ensure the continuity of government in all circumstances as mandated by Presidential Decision Directive. The Office is the database owner for the principal personnel security information processing activities of the Department and personnel security administrative review process. Functions

369

Potline Operation I: Smelter Operations - Programmaster.org  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... Low Power Operation at Aluminium Dunkerque Smelter: ... place in the substation and have limited the maximum substation capacity at 285 kA†...

370

Formal Specification ofOperating System Operations Dan ...  

Science Conference Proceedings (OSTI)

... ffl The process has privilege PV MAC CL (if ... Function setSLFileEnv models the operation of a process ... To model the arguments that are passed to ...

2013-05-07T23:59:59.000Z

371

Air conditioning system with supplemental ice storing and cooling capacity  

DOE Patents (OSTI)

The present air conditioning system with ice storing and cooling capacity can generate and store ice in its pipe assembly or in an ice storage tank particularly equipped for the system, depending on the type of the air conditioning system. The system is characterized in particular in that ice can be produced and stored in the air conditioning system whereby the time of supplying cooled air can be effectively extended with the merit that the operation cycle of the on and off of the compressor can be prolonged, extending the operation lifespan of the compressor in one aspect. In another aspect, ice production and storage in great amount can be performed in an off-peak period of the electrical power consumption and the stored ice can be utilized in the peak period of the power consumption so as to provide supplemental cooling capacity for the compressor of the air conditioning system whereby the shift of peak and off-peak power consumption can be effected with ease. The present air conditioning system can lower the installation expense for an ice-storing air conditioning system and can also be applied to an old conventional air conditioning system.

Weng, Kuo-Lianq (Taichung, TW); Weng, Kuo-Liang (Taichung, TW)

1998-01-01T23:59:59.000Z

372

Behavior of oil muds during drilling operations  

Science Conference Proceedings (OSTI)

This paper presents an analysis of the behavior of diesel-oil-based muds with an advanced thermal and hydraulic wellbore mathematical simulator. Recent diesel-oil-mud rheological correlations have been incorporated into the model to account for viscosity and density variations of oil mud with temperature and pressure. As rheological correlations are developed for other oil-based muds, such as mineral-oil based muds, they can also be incorporated into the model. A specific deep-well application of the model illustrates the behavior of the oil-based muds and shows the differences between water-based mud and oil-mud for local fluid densities during drilling, circulating, and static conditions. Temperature and density profiles are presented for various operating conditions to show that modeling improves the understanding of oil-mud behavior downhole.

Galate, J.W.; Mitchell, R.F.

1986-04-01T23:59:59.000Z

373

Method of operating a coal gasifier  

DOE Patents (OSTI)

A method of operating an entrained flow coal gasifier which comprises the steps of firing coal at two levels in a combustion zone with near stoichiometric air, removing molten ash from the combustion zone, conveying combustion products upwardly from the combustion zone through a reduction zone, injecting additional coal into the combustion products in the reduction zone and gasifying at least a portion of the coal to form low BTU gas, conveying the gas to a point of use, including also reducing gasifier output by modifying the ratio of air to coal supplied to the upper level of the combustion zone so that the ratio becomes increasingly substoichiometric thereby extending the gasification of coal from the reduction zone into the upper level of the combustion zone, and maintaining the lower level of coal in the combustion zone at near stoichiometric conditions so as to provide sufficient heat to maintain effective slagging conditions.

Blaskowski, Henry J. (West Simsbury, CT)

1979-01-01T23:59:59.000Z

374

Liens for Oil and Gas Operations (Nebraska)  

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

This section contains regulations concerning lien allowances made to operators of oil and gas operations.

375

Capacitors for Wide Operating Temperatures  

Science Conference Proceedings (OSTI)

Symposium, Advanced Materials for Power Electronics, Power Conditioning, and Power Conversion ... Potential Ceramic Dielectrics for Air Force Applications.

376

Brawley 10MW Geothermal Plant Plant Manual for Southern California Edison Company and Union Oil Company of California: Systems Start-up and Operations, Volume II  

DOE Green Energy (OSTI)

Each system within the facility is considered from an operation viewpoint. There are five subsegments within this operation's viewpoint. Prerequisite conditions, start-up, normal operating, emergency and shutdown.

None

1980-11-28T23:59:59.000Z

377

Lithium bromide absorption chiller passes gas conditioning field test  

Science Conference Proceedings (OSTI)

A lithium bromide absorption chiller has been successfully used to provide refrigeration for field conditioning of natural gas. The intent of the study was to identify a process that could provide a moderate level of refrigeration necessary to meet the quality restrictions required by natural-gas transmission companies, minimize the initial investment risk, and reduce operating expenses. The technology in the test proved comparatively less expensive to operate than a propane refrigeration plant. Volatile product prices and changes in natural-gas transmission requirements have created the need for an alternative to conventional methods of natural-gas processing. The paper describes the problems with the accumulation of condensed liquids in pipelines, gas conditioning, the lithium bromide absorption cycle, economics, performance, and operating and maintenance costs.

Lane, M.J.; Huey, M.A. [Nicol and Associates, Richardson, TX (United States)

1995-07-31T23:59:59.000Z

378

Achronal averaged null energy condition  

Science Conference Proceedings (OSTI)

The averaged null energy condition (ANEC) requires that the integral over a complete null geodesic of the stress-energy tensor projected onto the geodesic tangent vector is never negative. This condition is sufficient to prove many important theorems in general relativity, but it is violated by quantum fields in curved spacetime. However there is a weaker condition, which is free of known violations, requiring only that there is no self-consistent spacetime in semiclassical gravity in which ANEC is violated on a complete, achronal null geodesic. We indicate why such a condition might be expected to hold and show that it is sufficient to rule out closed timelike curves and wormholes connecting different asymptotically flat regions.

Graham, Noah; Olum, Ken D. [Department of Physics, Middlebury College, Middlebury, Vermont 05753 (United States) and Center for Theoretical Physics, Laboratory for Nuclear Science, and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Institute of Cosmology, Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155 (United States)

2007-09-15T23:59:59.000Z

379

Achronal averaged null energy condition  

E-Print Network (OSTI)

The averaged null energy condition (ANEC) requires that the integral over a complete null geodesic of the stress-energy tensor projected onto the geodesic tangent vector is never negative. This condition is sufficient to prove many important theorems in general relativity, but it is violated by quantum fields in curved spacetime. However there is a weaker condition, which is free of known violations, requiring only that there is no self-consistent space-time in semiclassical gravity in which ANEC is violated on a complete, {\\em achronal} null geodesic. We indicate why such a condition might be expected to hold and show that it is sufficient to rule out wormholes and closed timelike curves.

Noah Graham; Ken D. Olum

2007-05-22T23:59:59.000Z

380

Conditions for learning from animations  

Science Conference Proceedings (OSTI)

Animated diagrams representing dynamic systems hold great potential for improving the way people learn. However, so far the literature failed to find clear benefits of animated diagrams. Consequently it is worthwhile to investigate conditions under which ...

Herre Van Oostendorp; Michiel J. Beijersbergen; Sam Solaimani

2008-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Flux Measurement with Conditional Sampling  

Science Conference Proceedings (OSTI)

A method is proposed to measure scalar fluxes using conditional sampling. Only the mean concentrations of updraft and downdraft samples, the standard deviation of the vertical velocity, and a coefficient of proportionality, b, need to be known. ...

Joost A. Businger; Steven P. Oncley

1990-04-01T23:59:59.000Z

382

When Does Aid Conditionality Work?  

E-Print Network (OSTI)

GR. Aid conditionality: does foreign aid support autocrats,New York: Routledge; 1998. Knack S. Does foreign aid promotePress; 2000. Remmer KL. Does foreign aid promote the

Montinola, Gabriella R.

2010-01-01T23:59:59.000Z

383

NERVA Program. Operating procedure: cart cooling system, Test Cell A  

SciTech Connect

The instructions described in this procedure are typical of the operation of Test Cell A relative to the KIWI-B4A. Operation of Test Cell A relative to the NRX reactor will require modifications dictated by specific test requirements. Under NRX conditions, it will be the responsibility of the test cell manager to evaluate the capabilities of Test Cell A in terms of given test requirements and then set forth detailed checklists which will be compatible with the test requirements.

1963-09-01T23:59:59.000Z

384

Business Operations | Department of Energy  

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

Business Operations Business Operations Business Operations The Office of Business Operations is the central organization for all Office of Energy Efficiency and Renewable Energy (EERE) business products, processes, and systems. The three main offices of Business Operations - Office of Budget, Office of Business Services, and Office of Information and Business Management - and their managers are outlined in the Business Operations organization chart. Offices Image of the Department of Energy Forrestal building in DC. Office of Budget The Office of Budget provides information that informs policy development and program planning, including basic market and economic data relevant to EERE's programs, market and economic analysis, estimation of the public benefits of EERE's programs, evaluation of past program performance and

385

Field Operation Power Switching Safety  

Science Conference Proceedings (OSTI)

Safety is of paramount consideration in all aspects of utility operations. Power switching operations, due to their variable nature, are susceptible to errors that can place utility workers at risk, lower system reliability or ability to respond to contingencies, increase customer outages, lower customer satisfactions, and reduce revenue. This report summarizes the results of analysis of utility data collected on human error in power switching operations and describes industry techniques used to reduce t...

1996-10-11T23:59:59.000Z

386

Condition responsive battery charging circuit  

SciTech Connect

A battery charging circuit includes a ferroresonant transformer having a rectified output for providing a constant output voltage to be supplied to a battery to be charged. Battery temperature is sensed providing an input to a control circuit which operates a shunt regulator associated with the ferroresonant transformer to provide battery charge voltage as a function of battery temperature. In response to a high battery temperature the controller functions to lower the output voltage to the battery, and in response to a low battery temperature, operates to provide a higher output voltage, with suitable control for any battery temperature between minus 10* and plus 150* fahrenheit. As the battery approaches full charge and battery acceptance current falls below a predetermined level, a charge cycle termination control allows charging to continue for a period preset by the operator, at the end of which period, line voltage is removed from the charger thereby terminating the charge cycle.

Reidenbach, S.G.

1980-06-24T23:59:59.000Z

387

Flue gas conditioning for improved particle collection in electrostatic precipitators  

SciTech Connect

The purpose of this research program is to identify and evaluate a variety of additives capable of increasing particle cohesion which could be used for improving collection efficiency in an ESP. A three-phase screening process will be used to provide the, evaluation of many additives in a logical and cost-effective manner. The three step approach involves the following experimental setups: 1. Provide a preliminary screening in the laboratory by measuring the effects of various conditioning agents on reentrainment of flyash particles in an electric field operating at simulated flue gas conditions. 2. Evaluate the successful additives using a 100 acfm bench-scale ESP operating on actual flue gas. 3. Obtain the data required for scaling up the technology by testing the two or three most promising conditioning agents at the pilot scale.

Durham, M.D.

1992-04-27T23:59:59.000Z

388

NIST: Methane Symmetry Operations - Introduction  

Science Conference Proceedings (OSTI)

Methane Symmetry Operations. ... At least three T d symmetry classification systems are widely used at present in the methane literature [5-13]. ...

389

Operations Analysis - Advanced Photon Source  

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

Areas of interest Experiments and analysis of APS accelerator beams Commissioning and operations software Accelerator simulation and simulation codes Design of...

390

AVESTARģ - Training - Combined Cycle Operations  

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

Exercise Startup Circulating Water System Startup Fuel Systems Draw vacuum in Condenser Start Gas Turbine (GT) and bring to rated speed on natural gas ITS operations to...

391

TUTORIALS: Solar Cell Operation - TMS  

Science Conference Proceedings (OSTI)

Jan 21, 2008 ... This animated tutorial describes the basics of solar cell operation. It defines the photovoltaic effect, discusses electron and current flow within a†...

392

Sector 9 | Operations and Schedule  

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

Sector 9 Operations and Schedule Contents: 9-ID User Manual 9-BM User Manual Common Tasks Computers and Software Troubleshooting Web Cameras...

393

Apparatus and method for controlling steam turbine operating conditions during starting and loading  

SciTech Connect

A steam turbine-generator system is described which consists of: a high-pressure steam turbine; a reheat turbine; a boiler including means for heating stem for delivery to the high-pressure steam turbine and a boiler reheat portion for reheating an exhaust steam from the high-pressure steam turbine for delivery to the reheat turbine; main valve means for admitting steam from the boiler to the high-pressure steam turbine; an intercept control valve for admitting steam from the boiler reheat portion to the reheat turbine; means for maintaining at least a selectable predetermined pressure in the boiler reheat portion; a reheater bypass assembly connected between a high-pressure turbine exhaust line of the high-pressure steam turbine and a reheat turbine inlet line of the reheat turbine, the reheater bypass assembly bypassing the reheat portion and the intercept control valve; a check valve in the high-pressure turbine exhaust line downstream of the reheater bypass assembly; and the check valve including means for preventing a flow of steam from the high-pressure turbine exhaust line to the reheat portion while an exhaust pressure of steam from the high-pressure steam turbine is less than the selectable predetermined pressure, whereby exhaust steam from the high pressure steam turbine passes through the reheater bypass assembly directly to the reheat turbine without passing through and reheat portion during at least a portion of a startup cycle.

Dimitroff, V.T. Jr.; Wagner, J.B.

1986-07-08T23:59:59.000Z

394

Thermal Analysis of a Solid Breeder TBM Under ITER Operational Conditions  

Science Conference Proceedings (OSTI)

Tritium, Safety, and Environment / Eighteenth Topical Meeting on the Technology of Fusion Energy (Part 1)

A. Abou-Sena; A. Ying; M. Youssef; M. Abdou

395

Over-current relay implementation assuring fast and secure operation in transient conditions  

E-Print Network (OSTI)

] J. F. Witte, F. P. Decesaro, S. R. Mendis, Damaging long-term over voltages on industrial capacitor

Kezunovic, Mladen

396

Optimization of Fuel Cell System Operating Conditions for Fuel Cell Vehicles  

E-Print Network (OSTI)

An Indirect Methanol Pem Fuel Cell System, SAE 2001, (paperof automotive PEM fuel cell stacks, SAE 2000 (paper numberParasitic Loads in Fuel Cell Vehicles, International Journal

Zhao, Hengbing; Burke, Andy

2008-01-01T23:59:59.000Z

397

Reducing Energy Consumption through Optimization of the Operating Conditions of the Gas Trunk Pipeline.  

E-Print Network (OSTI)

?? Gas supplying process for consumers needs sufficient share of energy for upstream, midstream and downstream purposes. In spite of a huge amount of greatÖ (more)

Albutov, Alexey

2013-01-01T23:59:59.000Z

398

A model-based approach to regulating electricity distribution under new operating conditions  

E-Print Network (OSTI)

New technologies such as distributed generation and electric vehicles are connecting to the electricity distribution grid, a regulated natural monopoly. Existing regulatory schemes were not designed for these new technologies ...

Yap, Xiang Ling

2012-01-01T23:59:59.000Z

399

Statistical Analysis Methodology for Predicting Impact of Operation Factors on Boiler Availability  

Science Conference Proceedings (OSTI)

As utilities strive to achieve higher reliability and lower operating and maintenance costs for their fossil-fired power plants, ever-changing operating conditions provide even greater challenges in meeting those objectives. This report summarizes an analytical methodology to quantify the cause-and-effect relationships that exist between operating conditions and boiler component reliability. The methodology is based on standard statistical correlations that are derived through application of commercially...

2001-12-11T23:59:59.000Z

400

On the parallelization of the acoustic wave equation with absorbing boundary conditions  

SciTech Connect

Many practical problems involve wave propagation through atmosphere, oceans, or terrestrial crust. Modeling and analysis of these problems is usually done in (semi)infinite domains, but numerical calculations obviously impose restriction to finite domains. To mimic the actual behavior in the (semi)infinite medium, artificial absorbing boundary conditions are imposed at the boundaries, whereby waves can only exit, but not enter the finite computational domain. Efficient absorbing boundary conditions are difficult to analyze and costly to run. In particular, it is of interest to assess whether the wave equation with (approximate or exact) absorbing boundary conditions admits a suitable diagonalization. This would open the possibility for parallelizing many important numerical codes used in applications. In this paper the authors propose a set of stable, local, absorbing boundary conditions for the discrete acoustic wave equation. They show that the acoustic wave equation with absorbing boundary conditions cannot be exactly diagonalized.

White, C.T. [California Inst. of Tech., Pasadena, CA (United States). Dept. of Mathematics; Protopopescu, V.A.; Barhen, J. [Oak Ridge National Lab., TN (United States). Center for Engineering Systems Advanced Research

1998-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Office of Headquarters Security Operations | Department of Energy  

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

Headquarters Security Headquarters Security Operations Office of Headquarters Security Operations Mission The Office of Headquarters Security Operations strengthens national security by protecting personnel, facilities, property, classified information, and sensitive unclassified information for DOE Headquarters facilities in the National Capital Area under normal and abnormal (i.e., emergency) conditions; managing access authorization functions; ensuring that executives and dignitaries are fully protected, and supporting efforts to ensure the continuity of government in all circumstances as mandated by Presidential Decision Directive. The Office is the database owner for the principal personnel security information processing activities of the Department and personnel security administrative review process.

402

Operators wary: Stack that rig correctly  

SciTech Connect

This article points out that reasons for planned, scheduled preservation of offshore rigs and equipment are as varied as the owner's interest in them. As a result, no single plan or procedure can meet the requirements of every rig owner. Each rig and its equipment must be treated individually for a number of reasons. The most effective and economical rig preservation program is the result of both the owner and preservation contractor understanding all the objectives and the time frame involved. Numerous questions should be answered up front. How long will preservation measures be required. Is the rig to be maintained in an operational state. Will there be frequent trips to the rig. Will the unit be kept intact, or equipment removed as needed for operation of other rigs. Is the whole unit or any of its components for sale. Will insurance and certifications be affected by the preservation methods used. Perhaps most important is the time period. If the rig is to be stacked for an extended length of time, the owner will likely opt for ''cold,'' or inoperable, preservation. In this condition, engines are treated to protect cylinders, cooling systems and drive components in a static condition.

Moriniere, J.

1987-07-01T23:59:59.000Z

403

PARALLEL OPERATION OF WELDING GENERATORS  

SciTech Connect

Eight 900-amp, 36-kw direct current welding generators driven by eight 60-hp induction motors were operated in parallel to supply up to 7200 amp to resistance loads for heat transfer studies. A description and circuit designs of this installation, which provides safety interlocks and permits sectionalized operation for separate leads, are given. (auth)

Butler, B.H.

1960-06-01T23:59:59.000Z

404

Implementing an Operator Excellence Program  

Science Conference Proceedings (OSTI)

This document is designed to offer power plant operations staff the essential elements that EPRI believes are necessary to effectively implement a successful Operator Excellence Program (OEP). The elements consist of the following: ē Creation of an OEP implementation team ē Project management considerations ē Blended training program considerations ē Qualification and certification considerations ē An effective quality assurance program

2002-12-29T23:59:59.000Z

405

A simple and efficient evolution operator for time-dependent Hamiltonians: the Taylor expansion  

SciTech Connect

No compact expression of the evolution operator is known when the Hamiltonian operator is time dependent, like when Hamiltonian operators describe, in a semiclassical limit, the interaction of a molecule with an electric field. It is well known that Magnus [N. Magnus, Commun. Pure Appl. Math. 7, 649 (1954)] has derived a formal expression where the evolution operator is expressed as an exponential of an operator defined as a series. In spite of its formal simplicity, it turns out to be difficult to use at high orders. For numerical purposes, approximate methods such as 'Runge-Kutta' or 'split operator' are often used usually, however, to a small order (<5), so that only small time steps, about one-tenth or one-hundredth of the field cycle, are acceptable. Moreover, concerning the latter method, split operator, it is only very efficient when a diagonal representation of the kinetic energy operator is known. The Taylor expansion of the evolution operator or the wave function about the initial time provides an alternative approach, which is very simple to implement and, unlike split operator, without restrictions on the Hamiltonian. In addition, relatively large time steps (up to the field cycle) can be used. A two-level model and a propagation of a Gaussian wave packet in a harmonic potential illustrate the efficiency of the Taylor expansion. Finally, the calculation of the time-averaged absorbed energy in fluoroproprene provides a realistic application of our method.

Lauvergnat, David; Blasco, Sophie; Chapuisat, Xavier; Nauts, Andre [Laboratoire de Chimie Physique, Universite Paris-Sud, CNRS, UMR8000, Batiment 490, Orsay F-91405 (France); Laboratoire de Chimie Physique, Universite Paris-Sud, CNRS, UMR8000, Batiment 490, Orsay F-91405 (France); Unite PAMO (Departement de Physique), Universite Catholique de Louvain, 2 Chemin du Cyclotron, 1348 Louvain-la-Neuve (Belgium)

2007-05-28T23:59:59.000Z

406

AVESTAR¬ģ - Training - Gasification Process Operations  

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

Gasification Process Operations Gasification Process Operations This course is designed as a familiarization course to increase understanding of the gasification with CO2 capture process. During the training, participants will startup and shutdown the simulated unit in an integrated manner and will be exposed to simple and complex unit malfunctions in the control room and in the field. Course objectives are as follows: Introduce trainees to gasification and CO2 capture process systems and major components and how they dynamically interact Familiarize trainees with the Human Machine Interface (HMI) and plant control and how safe and efficient operation of the unit can be affected by plant problems Provide the trainees with hands-on operating experiences in plant operations using the HMI

407

###Operating Principles published 411.pdf  

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

Analysis of operating principles with S-system models Yun Lee 1 , Po-Wei Chen 1 , Eberhard O. Voit ‚áĎ The Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech and Emory University, 313 Ferst Drive, Suite 4103, Atlanta, GA 30332-0535, United States a r t i c l e i n f o Article history: Available online 4 March 2011 Keywords: Biochemical Systems Theory Design principle Heat stress Operating principle S-system Trehalose a b s t r a c t Operating principles address general questions regarding the response dynamics of biological systems as we observe or hypothesize them, in comparison to a priori equally valid alternatives. In analogy to design principles, the question arises: Why are some operating strategies encountered more frequently than others and in what sense might they be superior? It is at this point impossible to study operation prin- ciples in complete generality,

408

Human Factors Aspects of Operating Small Reactors  

DOE Green Energy (OSTI)

The nuclear-power community has reached the stage of proposing advanced reactor designs to support power generation for decades to come. They are considering small modular reactors (SMRs) as one approach to meet these energy needs. While the power output of individual reactor modules is relatively small, they can be grouped to produce reactor sites with different outputs. Also, they can be designed to generate hydrogen, or to process heat. Many characteristics of SMRs are quite different from those of current plants, and so may require a concept of operations (ConOps) that also is different. The U.S. Nuclear Regulatory Commission (NRC) has begun examining the human factors engineering- (HFE) and ConOps- aspects of SMRs; if needed, they will formulate guidance to support SMR licensing reviews. We developed a ConOps model, consisting of the following dimensions: Plant mission; roles and responsibilities of all agents; staffing, qualifications, and training; management of normal operations; management of off-normal conditions and emergencies; and, management of maintenance and modifications. We are reviewing information on SMR design to obtain data about each of these dimensions, and have identified several preliminary issues. In addition, we are obtaining operations-related information from other types of multi-module systems, such as refineries, to identify lessons learned from their experience. Here, we describe the project's methodology and our preliminary findings.

OHara, J.M.; Higgins, J.; Deem, R. (BNL); Xing, J.; DAgostino, A. (NRC)

2010-11-07T23:59:59.000Z

409

Spent Nuclear Fuel Project operational staffing plan  

SciTech Connect

Using the Spent Nuclear Fuel (SNF) Project`s current process flow concepts and knowledge from cognizant engineering and operational personnel, an initial assessment of the SNF Project radiological exposure and resource requirements was completed. A small project team completed a step by step analysis of fuel movement in the K Basins to the new interim storage location, the Canister Storage Building (CSB). This analysis looked at fuel retrieval, conditioning of the fuel, and transportation of the fuel. This plan describes the staffing structure for fuel processing, fuel movement, and the maintenance and operation (M&O) staffing requirements of the facilities. This initial draft does not identify the support function resources required for M&O, i.e., administrative and engineering (technical support). These will be included in future revisions to the plan. This plan looks at the resource requirements for the SNF subprojects, specifically, the operations of the facilities, balances resources where applicable, rotates crews where applicable, and attempts to use individuals in multi-task assignments. This plan does not apply to the construction phase of planned projects that affect staffing levels of K Basins.

Debban, B.L.

1996-03-01T23:59:59.000Z

410

Transportation System Concept of Operations  

Science Conference Proceedings (OSTI)

The Nuclear Waste Policy Act of 1982 (NWPA), as amended, authorized the DOE to develop and manage a Federal system for the disposal of SNF and HLW. OCRWM was created to manage acceptance and disposal of SNF and HLW in a manner that protects public health, safety, and the environment; enhances national and energy security; and merits public confidence. This responsibility includes managing the transportation of SNF and HLW from origin sites to the Repository for disposal. The Transportation System Concept of Operations is the core high-level OCRWM document written to describe the Transportation System integrated design and present the vision, mission, and goals for Transportation System operations. By defining the functions, processes, and critical interfaces of this system early in the system development phase, programmatic risks are minimized, system costs are contained, and system operations are better managed, safer, and more secure. This document also facilitates discussions and understanding among parties responsible for the design, development, and operation of the Transportation System. Such understanding is important for the timely development of system requirements and identification of system interfaces. Information provided in the Transportation System Concept of Operations includes: the functions and key components of the Transportation System; system component interactions; flows of information within the system; the general operating sequences; and the internal and external factors affecting transportation operations. The Transportation System Concept of Operations reflects OCRWM's overall waste management system policies and mission objectives, and as such provides a description of the preferred state of system operation. The description of general Transportation System operating functions in the Transportation System Concept of Operations is the first step in the OCRWM systems engineering process, establishing the starting point for the lower level descriptions. of subsystems and components, and the Transportation System Requirements Document. Other program and system documents, plans, instructions, and detailed designs will be consistent with and informed by the Transportation System Concept of Operations. The Transportation System Concept of Operations is a living document, enduring throughout the OCRWM systems engineering lifecycle. It will undergo formal approval and controlled revisions as appropriate while the Transportation System matures. Revisions will take into account new policy decisions, new information available through system modeling, engineering investigations, technical analyses and tests, and the introduction of new technologies that can demonstrably improve system performance.

N. Slater-Thompson

2006-08-16T23:59:59.000Z

411

Field analysis of occupancy sensor operation: Parameters affecting lighting energy savings  

SciTech Connect

This study was designed to assess the potential energy savings from the use of lighting occupancy sensor control in Hanford Site facilities. The final results of the study provide useful information for assessing the cost-effective use of occupancy sensor lighting control. The results also include an assessment of the total potential savings from the application of sensors across the entire site. The study involved placing sensor test equipment in multiple office spaces in eight buildings that are part of the Hanford contractor facilities. Further testing was conducted to assess the effects of timer sensitivity adjustments on potential lighting energy savings. The results of this test indicated that up to 100% additional wasted-light energy can be saved by using timer sensitivity settings as low as 2.5 min, which is less than standard factory settings of usually 10 to 20 min. The analysis indicates that savings from lighting operations are affected by the work function and number of occupants in occupied spaces. The availability of daylight in a building space does not appear to have any noticeable aggregate effect on the quantity of wasted-light hours in occupied or unoccupied spaces. An assessment of the total potential savings for the entire Hanford Site included life-cycle costing that followed the federally accepted methodology. The life-cycle cost analysis was performed for a set of possible lighting wattages across the building spaces and occupant types identified from the initial analysis. Under current conditions, the potential savings is estimated to be $525,812/yr at an initial cost of $976,824. The total Net Present Value for the site is estimated at $3,539,926 with a simple payback period of 1.85 years.

Richman, E.E.; Dittmer, A.L.; Keller, J.M.

1994-09-01T23:59:59.000Z

412

Definition: Operating Process | Open Energy Information  

Open Energy Info (EERE)

Process Jump to: navigation, search Dictionary.png Operating Process A document that identifies general steps for achieving a generic operating goal. An Operating Process includes...

413

NNSA Streamlines Operations | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

NNSA Timeline > NNSA Streamlines Operations NNSA Streamlines Operations December 20, 2002 Washington, DC NNSA Streamlines Operations The National Nuclear Security Administration...

414

Operable windows, personal control and occupant comfort.  

E-Print Network (OSTI)

ASHRAEís permission. Operable Windows, Personal Control, andcontrol of operable windows in naturally-ventilated officeences on the operation of windows in a naturally venti-

Brager, Gail; Paliaga, Gwelen; de Dear, Richard

2004-01-01T23:59:59.000Z

415

SNS Operations Status Update | ORNL Neutron Sciences  

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

Home SNS Operations Status Update SNS Operations Status Update - November 29, 2012 Resumption of SNS Operations and User Program Neutron production resumed on November 29,...

416

External Independent Review (EIR) Standard Operating Procedure...  

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

Standard Operating Procedure (SOP) External Independent Review (EIR) Standard Operating Procedure (SOP) EIR SOP.pdf More Documents & Publications ICR-ICE Standard Operating...

417

LFS Exhibit A General Conditions  

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

Page 1 of 31 Page 1 of 31 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012) .......................................................................................................... 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 3 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

418

ORISE: Operations Support and Planning  

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

Securing the Golden State Amber Waves 2012 Bureau of Reclamation Emergency Management Issues Special Interest Group Golden Guardian Joint Information Center Preventing Nuclear Smuggling Program Training and Technology Support Resources How to Work With Us Contact Us Oak Ridge Institute for Science Education Operations Support and Planning Operations Support and Planning The Oak Ridge Institute for Science and Education (ORISE) provides operations and planning support to the U.S. Department of Energy (DOE), Federal Emergency Management Agency and other government agencies for their counterterrorism and emergency response readiness programs. ORISE's planning, logistical and administrative support areas are focused on enhancing the radiological preparedness and response coordination

419

APS Long Range Operations Schedule  

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

Shutdown Planning Shutdown Planning Planning Templates Shutdown Planning Schedules: Current Shutdown Schedule Archives: 2006 - 2013 APS Long-Range Operations Schedule: 2014 Archives: 2013 | 2012 2011 | 2010 | 2009 | 2008 2007 | 2006 | 2005 | 2004 2003 | 2002 | 2001 | 2000 1999 | 1998 | 1997 | 1996 APS Long-Range Operations Schedule (Fiscal Year 2014) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2013-3 2014-1 2014-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2

420

INJECTIVE COGENERATORS AMONG OPERATOR BIMODULES  

E-Print Network (OSTI)

Abstract. Given C ?-algebras A and B acting cyclically on Hilbert spaces H and K, respectively, we characterize completely isometric A, B-bimodule maps from B(K, H) into operator A, B-bimodules. We determine cogenerators in some classes of operator bimodules. For an injective cogenerator X in a suitable category of operator A, B-bimodules we show: if A, regarded as a C ?-subalgebra of A?(X) (adjointable left multipliers on X), is equal to its relative double commutant in A?(X), then A must be a W ?-algebra. 1.

Bojan Magajna

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Transforming quantum operations: quantum supermaps  

E-Print Network (OSTI)

We introduce the concept of quantum supermap, describing the most general transformation that maps an input quantum operation into an output quantum operation. Since quantum operations include as special cases quantum states, effects, and measurements, quantum supermaps describe all possible transformations between elementary quantum objects (quantum systems as well as quantum devices). After giving the axiomatic definition of supermap, we prove a realization theorem, which shows that any supermap can be physically implemented as a simple quantum circuit. Applications to quantum programming, cloning, discrimination, estimation, information-disturbance trade-off, and tomography of channels are outlined.

G. Chiribella; G. M. D'Ariano; P. Perinotti

2008-04-01T23:59:59.000Z

422

Department of Energy Offers First Conditional Commitment for a Loan  

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

First Conditional Commitment for a Loan First Conditional Commitment for a Loan Guarantee for Advanced Biofuels Plant Department of Energy Offers First Conditional Commitment for a Loan Guarantee for Advanced Biofuels Plant January 20, 2011 - 12:00am Addthis Washington D.C. --- U.S. Energy Secretary Steven Chu today announced the offer of a conditional commitment to Diamond Green Diesel, LLC, the proposed joint venture between Valero Energy Corporation and Darling International Inc., for a $241 million loan guarantee. The loan guarantee will support the construction of a 137-million gallon per year renewable diesel facility in Norco, Louisiana, about 20 miles west of New Orleans. Valero Energy Corporation plans to direct the design, construction and operation of the project and market all of its output, while Darling

423

Department of Energy Offers First Conditional Commitment for a Loan  

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

First Conditional Commitment for a Loan First Conditional Commitment for a Loan Guarantee for Advanced Biofuels Plant Department of Energy Offers First Conditional Commitment for a Loan Guarantee for Advanced Biofuels Plant January 20, 2011 - 12:00am Addthis Washington D.C. --- U.S. Energy Secretary Steven Chu today announced the offer of a conditional commitment to Diamond Green Diesel, LLC, the proposed joint venture between Valero Energy Corporation and Darling International Inc., for a $241 million loan guarantee. The loan guarantee will support the construction of a 137-million gallon per year renewable diesel facility in Norco, Louisiana, about 20 miles west of New Orleans. Valero Energy Corporation plans to direct the design, construction and operation of the project and market all of its output, while Darling

424

DOE Offers $72 Million Conditional Loan Guarantee to SAGE Electrochromics |  

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

72 Million Conditional Loan Guarantee to SAGE 72 Million Conditional Loan Guarantee to SAGE Electrochromics DOE Offers $72 Million Conditional Loan Guarantee to SAGE Electrochromics March 5, 2010 - 12:00am Addthis Washington DC --- Energy Secretary Steven Chu today announced the Department of Energy has offered a conditional commitment for a $72 million loan guarantee to SAGE Electrochromics, based in Faribault, Minnesota. The deal will support the financing of the construction and operation of a 250,000 square foot, high volume manufacturing facility to produce SageGlass¬ģ, an energy-saving window technology for commercial use. This new facility will be built next to SAGE's existing production facility, enabling the company to expand production and lower costs. "This investment will help cut utility bills, reduce carbon pollution, and

425

Department of Energy Offers $102 Million Conditional Commitment for Loan  

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

02 Million Conditional Commitment for 02 Million Conditional Commitment for Loan Guarantee to U.S. Geothermal, Inc. Department of Energy Offers $102 Million Conditional Commitment for Loan Guarantee to U.S. Geothermal, Inc. June 10, 2010 - 12:00am Addthis Washington, D.C. --- Energy Secretary Steven Chu today announced the offer of a $102.2 million conditional commitment for a loan guarantee to U.S. Geothermal, Inc. to construct a 22 megawatt geothermal power project in Malheur County, in southeastern Oregon. U.S. Geothermal estimates that the planned project will create 150 jobs during the 20-month construction period and employ 10 skilled full-time workers when it begins operating in 2012. The project will use an improved technology to extract energy from rock and fluids in the earth's crust more efficiently. The technology, referred to

426

An Automatic Control System for Conditioning 30 GHz Accelerating Structures  

E-Print Network (OSTI)

A software application programme has been developed to allow fast and automatic high-gradient conditioning of accelerating structures at 30 GHz in CTF3. The specificity of the application is the ability to control the high-power electron beam which produces the 30 GHz RF power used to condition the accelerating structures. The programme permits operation round the clock with minimum manpower requirements. In this paper the fast control system, machine control system, logging system, graphical user control interface and logging data visualization are described. An outline of the conditioning control system itself and of the feedback controlling peak power and pulse length is given. The software allows different types of conditioning strategies to be programmed

Dubrovskiy, A

2008-01-01T23:59:59.000Z

427

An Overview of Fleet Numerical Oceanography Center Operations and Products  

Science Conference Proceedings (OSTI)

The environment is a critical factor to the safe, effective operations of the U.S. Navy. In support of our global peacekeeping mission, the fleet must have timely and accurate forecasts of environmental conditions from the top of the stratosphere ...

LCDR Cynthia A. Nelson; CDR W. Tyson Aldinger

1992-06-01T23:59:59.000Z

428

Optimal operation of pipeline systems using genetic algorithm  

Science Conference Proceedings (OSTI)

A Genetic Algorithm (GA) is used in this paper for the optimal operation, result in better solution than the existing one, of the pipeline systems under transient conditions caused by valve closure. Simulation of pipeline system is carried out here by ... Keywords: genetic algorithm, implicit method of characteristic, pipeline system, transient flow, water hammer

M. H. Afshar; M. Rohani

2009-05-01T23:59:59.000Z

429

An ant algorithm for optimization of hole-making operations  

Science Conference Proceedings (OSTI)

This paper deals with the optimization of hole-making operations in conditions where a hole may need several tools to get completed. The objective of interest in the considered problem is to minimize the summation of tool airtime and tool switch time. ... Keywords: Ant algorithms, Drilling, Hole-making, Optimization

Heidar Ghaiebi; Maghsud Solimanpur

2007-03-01T23:59:59.000Z

430

Model Error Representation in an Operational Ensemble Kalman Filter  

Science Conference Proceedings (OSTI)

Since 12 January 2005, an ensemble Kalman filter (EnKF) has been used operationally at the Meteorological Service of Canada to provide the initial conditions for the medium-range forecasts of the ensemble prediction system. One issue in EnKF ...

P. L. Houtekamer; Herschel L. Mitchell; Xingxiu Deng

2009-07-01T23:59:59.000Z

431

Liquid over-feeding air conditioning system and method  

DOE Patents (OSTI)

A refrigeration air conditioning system utilizing a liquid over-feeding operation is described. A liquid refrigerant accumulator-heat exchanger is placed in the system to provide a heat exchange relationship between hot liquid refrigerant discharged from condenser and a relatively cool mixture of liquid and vaporous refrigerant discharged from the evaporator. This heat exchange relationship substantially sub-cools the hot liquid refrigerant which undergoes little or no evaporation across the expansion device and provides a liquid over-feeding operation through the evaporator for effectively using 100 percent of evaporator for cooling purposes and for providing the aforementioned mixture of liquid and vaporous refrigerant. 1 figure.

Mei, V.C.; Chen, F.C.

1993-09-21T23:59:59.000Z

432

Liquid over-feeding air conditioning system and method  

DOE Patents (OSTI)

A refrigeration air conditioning system utilizing a liquid over-feeding operation is described. A liquid refrigerant accumulator-heat exchanger is placed in the system to provide a heat exchange relationship between hot liquid refrigerant discharged from condenser and a relatively cool mixture of liquid and vaporous refrigerant discharged from the evaporator. This heat exchange relationship substantially sub-cools the hot liquid refrigerant which undergoes little or no evaporation across the expansion device and provides a liquid over-feeding operation through the evaporator for effectively using 100 percent of evaporator for cooling purposes and for providing the aforementioned mixture of liquid and vaporous refrigerant.

Mei, Viung C. (Oak Ridge, TN); Chen, Fang C. (Knoxville, TN)

1993-01-01T23:59:59.000Z

433

Fundamental mechanisms in flue gas conditioning. Final report  

SciTech Connect

The US Department of Energy`s Pittsburgh Energy Technology Center (DOE/PETC) initiated this project as part of a program to study the control of fine particles from coal combustion. Our project focus was flue gas conditioning. Various conditioning processes have lowered operating costs and increased collection efficiency at utility particulate control devices. By improving fine particle collection, flue gas conditioning also helps to control the emission of toxic metals, which are concentrated in the fine particle fraction. By combining a review of pertinent literature, laboratory characterization of a variety of fine powders and ashes, pilot-scale studies of conditioning mechanisms, and field experiences, Southern Research Institute has been able to describe many of the key processes that account for the effects that conditioning can have on fine-particle collection. The overall goal of this research project was to explain the mechanisms by which various flue gas conditioning processes alter the performance of particulate control devices. Conditioning involves the modification of one or more of the parameters that determine the magnitude of the forces acting on the fly ash particles. Resistivity, chemistry, cohesivity, size distribution, and particle morphology are among the basic properties of fly ash that significantly influence fine particle collection. Modifications of particulate properties can result in improved or degraded control device performance. These modifications can be caused by (1) changes to the process design or operation that affect properties of the flue gas, (2) addition of particulate matter such as flue-gas desulfurization sorbents to the process effluent stream, (3) injection of reactive gases or liquids into the flue gas. We recommend that humidification be seriously considered as a flue gas conditioning option. 80 refs., 69 figs., 23 tabs.

Snyder, T.R.; Bush, P.V.; Dahlin, R.S.

1996-03-20T23:59:59.000Z

434

Operational Management | Department of Energy  

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

Operational Management Operational Management Operational Management Operational Management Leadership Contact Information Office of Resource Management and Planning U.S. Department of Energy, MA-1.1 1000 Independence Ave., SW Washington, DC 20585 Marilyn L. Dillon Director marilyn.dillon@hq.doe.gov 202-586-4919 Office of Aviation Management U.S. Department of Energy, MA-30 1000 Independence Ave., SW Washington, DC 20585 Glen Wattman Director 202-586-5532 Glen.Wattman@hq.doe.gov Office of Administration U.S. Department of Energy, MA-40 1000 Independence Ave., SW Washington, DC 20585 Peter O'Konski Director 202-586-5710 peter.o'konski@hq.doe.gov Rebecca Montoya Deputy Director 202-586-0610 rebecca.montoya@hq.doe.gov Office of Engineering and Construction Management U.S. Department of Energy, MA-50

435

AUTHORIZATION TO CONTINUE OPERATION OF  

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

Contract Competition] Contract Competition] AUTHORIZATION TO CONTINUE OPERATION OF THE_[insert the name of the laboratory/site/facility]___ UNDER A MANAGEMENT AND OPERATING CONTRACT The _[insert the name of the laboratory/site/facility]_ is currently managed and operated by _[insert the name of the contractor]_ for the Department of Energy under a Management and Operating (M&O) contract as defined in Federal Acquisition Regulation (FAR) Subpart 17.6. The current contract and the determination authorizing the M&O form of contract expire on _[insert the expiration date]_. _[In one or two sentences, briefly describe the laboratory/site/facility mission]_. A new contract is currently being procured by the DOE _[insert DOE office name]_, under Request for Proposals (RFP) number _[insert RFP number]_. The resultant

436

AUTHORIZATION TO CONTINUE OPERATION OF  

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

Non-competitive Extension] Non-competitive Extension] AUTHORIZATION TO CONTINUE OPERATION OF THE_[insert the name of the laboratory/site/facility]___ UNDER A MANAGEMENT AND OPERATING CONTRACT The _[insert the name of the laboratory/site/facility]_ is currently managed and operated by _[insert the name of the contractor]_ for the Department of Energy under DOE contract _[insert contract number]._This contract is a Management and Operating (M&O) contract as defined in Federal Acquisition Regulation (FAR) Subpart 17.6. The current contract and the determination authorizing the M&O form of contract expire on _[insert the expiration date]_. A non-competitive extension is currently being pursued in accordance with FAR 6.301. [In one or two sentences, briefly describe the

437

Response Operations | Department of Energy  

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

Response Operations Response Operations Response Operations Overview The federal government primarily plays a coordinating and support role during disaster response. DOE's role is to facilitate recovery from disruptions to the energy supply. OE's capabilities and resources include personnel with emergency response and energy systems operations experience, leading-edge analytical modeling and visualization capabilities, coordination and contacts with private industry, state governments, and U.S. government agencies, and facilitation of special policy waivers or legal authorities by the Secretary of Energy. Response and Restoration State and Local Energy Assurance Planning National Response Framework ESF-12 This National Response Framework (NRF) is a guide to how the Nation conducts all-hazards response. Emergency Support Function #12 - Energy

438

Operation chaining asynchronous pipelined circuits  

Science Conference Proceedings (OSTI)

We define operation chaining (op-chaining) as an optimization problem to determine the optimal pipeline depth for balancing performance against energy demands in pipelined asynchronous designs. Since there are no clock period requirements, asynchronous ...

Girish Venkataramani; Seth C. Goldstein

2007-11-01T23:59:59.000Z

439

Photovoltaic Operation and Maintenance Evaluation  

Science Conference Proceedings (OSTI)

Results from this study confirm that photovoltaic power plants require low operating and maintenance costs per kilowatthour. Projections based on these results suggest that in the future costs will fall below 0.5 cent per kilowatthour.

1990-01-11T23:59:59.000Z

440

DOE-ID Operations Summary  

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

offers a significant benefit to water-intensive industrial processes such as oil-gas fracking operations that use 3 to 5 million gallons of water per well (video at www.inl.gov...

Note: This page contains sample records for the topic "usual operating conditions" 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

Design of micropower operational amplifiers  

E-Print Network (OSTI)

The operational amplifier is a fundamental building block for electronic devices and systems. The advancement of modern electronic technology has been setting more performance demand on the underlying integrated circuits ...

Rayanakorn, Surapap

2006-01-01T23:59:59.000Z

442

Idaho Operations AMWTP Fact Sheet  

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

The Department of Energy's Idaho Operations Advanced Mixed Waste Treatment Project (AMWTP) is the nation's premier transuranic radioactive waste facility. This fact sheet provides an overview of the the project.

443

Preparation for Facility Operations RM  

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

The objective of this Standard Review Plan (SRP) on Preparation for Facility Operations is to provide consistency guidance to evaluate the effectiveness of the final project closure of major...

444

Savannah River Operations Office Homepage  

NLE Websites -- All DOE Office Websites

Savannah River Operations banner art and link to DOE Link to Energy.gov Link to Energy.gov National Day of Remembrance NOTICE TO USERS Use of this system constitutes consent to...

445

DIII-D research operations  

Science Conference Proceedings (OSTI)

This report discusses the research on the following topics: DIII-D program overview; divertor and boundary research program; advanced tokamak studies; tokamak physics; operations; program development; support services; contribution to ITER physics R D; and collaborative efforts.

Baker, D. (ed.)

1993-05-01T23:59:59.000Z

446

Self-adjoint phase operator  

Science Conference Proceedings (OSTI)

and E.V. Damaskinskii ... 1 . Introduction. The problem of quantizing classical action-phase (angle) .... of the ordinary canonical operators Q and P in L2([0, 1])).

447

The Navy's Operational Atmospheric Analysis  

Science Conference Proceedings (OSTI)

In January of 1988, significant upgrades were made to the Navy Operational Global Atmospheric Prediction System (NOGAPS). Among these improvements was the implementation of a multivariate optimum interpolation analysis scheme. Since that time, ...

James S. Goerss; Patricia A. Phoebus

1992-06-01T23:59:59.000Z

448

SRS - Programs - F Area Operations  

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

All three facilities were built in the 1950s. Historically, F Canyon operations recovered plutonium-239 (Pu-239) and uranium-238 (U-238) by a chemical separation process after...

449

Reactor operation environmental information document  

Science Conference Proceedings (OSTI)

This volume is a reactor operation environmental information document for the Savannah River Plant. Topics include meteorology, surface hydrology, transport, environmental impacts, and radiation effects. 48 figs., 56 tabs. (KD)

Bauer, L.R.; Hayes, D.W.; Hunter, C.H.; Marter, W.L.; Moyer, R.A.

1989-12-01T23:59:59.000Z

450

Operations Analysis - Advanced Photon Source  

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

Storage Ring Chief of Operations Argonne National Laboratory Bldg 401B2150 9700 S. Cass Avenue Argonne, IL 60439 (630) 252-5949 office (630) 252-5703 FAX schroedr@aps.anl.gov...

451

Operations Analysis - Advanced Photon Source  

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

S. Cass Avenue FAX number: 5703 Argonne, IL 60439 Email pager: 1766 Email Internet: cyao@aps.anl.gov Areas of interest Operations-related accelerator physics for storage ring, PAR,...

452

Disruption Management --Operations Research between  

E-Print Network (OSTI)

"one feather turned into five hens": A Boeing 747 from a major airline is on its way from New York moment, the delay is not more serious than delays due to heavy traffic over London, so the Operations

453

Manipulator Grasping and Pushing Operations  

E-Print Network (OSTI)

The primary goal of this research is to develop theoretical tools for analysis, synthesis, application of primitive manipulator operations. The primary method is to extend and apply traditional tools of classical mechanics. ...

Mason, Matthew Thomas

1982-06-01T23:59:59.000Z

454

DOE-ID Operations Summary  

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

18, 2013 18, 2013 DOE-ID Operations Summary For the Period September 30, 2013 through October 31, 2013 EDITOR'S NOTE: The following is a summary of contractor operations at the Idaho National Laboratory, managed by DOE- Idaho Operations Office. It has been compiled in response to a request from stakeholders for more information on health, safety and environmental incidents at DOE facilities in Idaho. It also includes a brief summary of accomplishments at the Site. POC -Danielle Miller, (208) 526-5709. Advanced Mixed Waste Treatment Project (AMWTP) October 15, 2013: A manager at the Advanced Mixed Waste Treatment Project (AMWTP) determined that the AMWTP Safety Analysis process required review due to an operational trend of fire/combustion events in the Treatment Facility (TF) box lines. Safety analysis for the TF is

455

MANGO Ė Modal Analysis for Grid Operation: A Method for Damping Improvement through Operating Point Adjustment  

SciTech Connect

Small signal stability problems are one of the major threats to grid stability and reliability in the U.S. power grid. An undamped mode can cause large-amplitude oscillations and may result in system breakups and large-scale blackouts. There have been several incidents of system-wide oscillations. Of those incidents, the most notable is the August 10, 1996 western system breakup, a result of undamped system-wide oscillations. Significant efforts have been devoted to monitoring system oscillatory behaviors from measurements in the past 20 years. The deployment of phasor measurement units (PMU) provides high-precision, time-synchronized data needed for detecting oscillation modes. Measurement-based modal analysis, also known as ModeMeter, uses real-time phasor measurements to identify system oscillation modes and their damping. Low damping indicates potential system stability issues. Modal analysis has been demonstrated with phasor measurements to have the capability of estimating system modes from both oscillation signals and ambient data. With more and more phasor measurements available and ModeMeter techniques maturing, there is yet a need for methods to bring modal analysis from monitoring to actions. The methods should be able to associate low damping with grid operating conditions, so operators or automated operation schemes can respond when low damping is observed. The work presented in this report aims to develop such a method and establish a Modal Analysis for Grid Operation (MANGO) procedure to aid grid operation decision making to increase inter-area modal damping. The procedure can provide operation suggestions (such as increasing generation or decreasing load) for mitigating inter-area oscillations.

Huang, Zhenyu; Zhou, Ning; Tuffner, Francis K.; Chen, Yousu; Trudnowski, Daniel J.; Diao, Ruisheng; Fuller, Jason C.; Mittelstadt, William A.; Hauer, John F.; Dagle, Jeffery E.

2010-10-18T23:59:59.000Z

456

Protocol to co-operation agreement with Iran  

E-Print Network (OSTI)

A Co-operation Agreement between CERN and Iran will be signed in the coming weeks within the framework of the decisions taken by the Committee of Council and Council in June 1989. In view of implementing this Agreement, a Protocol between CERN and the International Scientific Meetings Office of the Ministry of Science of the Islamic Republic of Iran has been drawn up. It concerns the participation of scientific Institutions of Iran in the CMS Collaboration where CERN is acting on behalf of this Collaboration. This Protocol incorporates the agreement between CMS and ISMO on the Iranese contribution. It does not involve any financial commitment for CERN. The Protocol mainly addresses the status of the Iranese scientists at CERN, the supply by ISMO of the support tables for CMS, as well as the usual provisions concerning delivery and customs, guarantees, responsibilities, intellectual property and disputes. This Protocol is submitted to the Finance Committee for information.

2001-01-01T23:59:59.000Z

457

Licensed operating reactors: Status summary report data as of December 31, 1991. Volume 16  

Science Conference Proceedings (OSTI)

The Nuclear Regulatory Commission`s annual summary of licensed nuclear power reactor data is based primarily on the report of operating data submitted by licensees for each unit for the month of December because that report contains data for the month of December, the year to date (in this case calendar year 1991) and cumulative data, usually from the date of commercial operation. The data is not independently verified, but various computer checks are made. The report is divided into two sections. The first contains summary highlights and the second contains data on each individual unit in commercial operation. Section 1 capacity and availability factors are simple arithmetic averages. Section 2 items in the cumulative column are generally as reported by the licensee and notes as to the use of weighted averages and starting dates other than commercial operation are provided.

NONE

1992-03-01T23:59:59.000Z

458

Licensed operating reactors. Status summary report data as of 12-31-94: Volume 19  

Science Conference Proceedings (OSTI)

The Nuclear Regulatory Commission`s annual summary of licensed nuclear power reactor data is based primarily on the report of operating data submitted by licensees for each unit for the month of December because that report contains data for the month of December, the year to date (in this case calendar year 1994) and cumulative data, usually from the date of commercial operation. The data is not independently verified, but various computer checks are made. The report is divided into two sections. The first contains summary highlights and the second contains data on each individual unit in commercial operation. Section 1 capacity and availability factors are simple arithmetic averages. Section 2 items in the cumulative column are generally as reported by the licensee and notes as to the use of weighted averages and starting dates other than commercial operation are provided.

NONE

1995-04-01T23:59:59.000Z

459

Licensed operating reactors. Status summary report data as of December 31, 1993  

SciTech Connect

The Nuclear Regulatory Commissions annual summary of licensed nuclear power reactor data is based primarily on the report of operating data submitted by licensees for each unit for the month of December, the year to date (in this case calendar year 1993) and cumulative data, usually for the date of commercial operation. The data is not independently verified, but various computer checks are made. The report is divided into two sections. The first contains summary highlights and the second contains data on each individual unit in commercial operation. Section 1 capacity and availability factors are simple arithmetic averages. Section 2 items in the cumulative column are generally as reported by the licensee and notes as to the use of weighted averages and starting dates other than commercial operation are provided.

Hartfield, R.A.

1994-03-01T23:59:59.000Z

460

Automated operator procedure prompting for startup of Experimental Breeder Reactor-2  

SciTech Connect

This report describes the development of an operator procedure prompting aid for startup of a nuclear reactor. This operator aid is a preliminary design for a similar aid that eventually will be used with the Advanced Liquid Metal Reactor (ALMR) presently in the design stage. Two approaches were used to develop this operator procedure prompting aid. One method uses an expert system software shell, and the other method uses database software. The preliminary requirements strongly pointed toward features traditionally associated with both database and expert systems software. Database software usually provides data manipulation flexibility and user interface tools, and expert systems tools offer sophisticated data representation and reasoning capabilities. Both methods, including software and associated hardware, are described in this report. Proposals for future enhancements to improve the expert system approach to procedure prompting and for developing other operator aids are also offered. 25 refs., 14 figs.

Renshaw, A.W.; Ball, S.J.; Ford, C.E.

1990-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "usual operating conditions" 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

Reactor operation safety information document  

Science Conference Proceedings (OSTI)

The report contains a reactor facility description which includes K, P, and L reactor sites, structures, operating systems, engineered safety systems, support systems, and process and effluent monitoring systems; an accident analysis section which includes cooling system anomalies, radioactive materials releases, and anticipated transients without scram; a summary of onsite doses from design basis accidents; severe accident analysis (reactor core disruption); a description of operating contractor organization and emergency planning; and a summary of reactor safety evolution. (MB)

Not Available

1990-01-01T23:59:59.000Z

462

Critical Operating Constraint Forecasting (COCF)  

Science Conference Proceedings (OSTI)

This document represents the progress report and Task 1 letter report of the California Institute for Energy and Environment (CIEE) contract funded by the California Energy Commission (CEC), Critical Operating Constraint Forecasting (COCF) for California Independent System Operator (CAISO) Planning Phase. Task 1 was to accomplish the following items: Collect data from CAISO to set up the WECC power flow base case representing the CAISO system in the summer of 2006 Run TRACE for maximizing California Impo...

2006-06-30T23:59:59.000Z

463

Pulverizer Operational and Performance Upgrades  

Science Conference Proceedings (OSTI)

In 1997, a survey of coal pulverizer operating experience was performed at the request of the funders of the EPRI Pulverizer Interest Group (PIG). The primary purpose of the survey was to determine the distributions of pulverizer manufacturers, types, models and sizes among the fleet of existing pulverizers operated by the PIG members. This effort was undertaken in order to optimally direct an R&D program8217s tasks focusing on field testing and physical and computer modeling.

2006-12-19T23:59:59.000Z

464

Current Techniques for Real-Time Evaluation of Conditional Symmetric Instability  

Science Conference Proceedings (OSTI)

Banded cloudiness and precipitation are sometimes observed in convectively stable environments. These observations are often attributed to conditional symmetric instability (CSI). High-resolution operational instruments in the wind-profiler ...

John S. Snook

1992-09-01T23:59:59.000Z

465

Sensitivity of Typhoon Track Predictions in a Regional Prediction System to Initial and Lateral Boundary Conditions  

Science Conference Proceedings (OSTI)

Tropical cyclone (TC) track predictions from the operational regional nonhydrostatic TC forecast system of the Taiwanese Central Weather Bureau (CWB) are examined for their sensitivities to initial and lateral boundary conditions. Five ...

Ling-Feng Hsiao; Melinda S. Peng; Der-Song Chen; Kang-Ning Huang; Tien-Chiang Yeh

2009-09-01T23:59:59.000Z

466

Infrastructure and Operations | National Nuclear Security Administrati...  

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

for Infrastructure and Operations develops and executes NNSA's infrastructure investment, maintenance, and operations programs and policies. Printer-friendly version...

467

Condition assessment of nonlinear processes  

DOE Patents (OSTI)

There is presented a reliable technique for measuring condition change in nonlinear data such as brain waves. The nonlinear data is filtered and discretized into windowed data sets. The system dynamics within each data set is represented by a sequence of connected phase-space points, and for each data set a distribution function is derived. New metrics are introduced that evaluate the distance between distribution functions. The metrics are properly renormalized to provide robust and sensitive relative measures of condition change. As an example, these measures can be used on EEG data, to provide timely discrimination between normal, preseizure, seizure, and post-seizure states in epileptic patients. Apparatus utilizing hardware or software to perform the method and provide an indicative output is also disclosed.

Hively, Lee M. (Philadelphia, TN); Gailey, Paul C. (Athens, OH); Protopopescu, Vladimir A. (Knoxville, TN)

2002-01-01T23:59:59.000Z

468

Computer controlled air conditioning systems  

SciTech Connect

This patent describes an improvement in a computer controlled air conditioning system providing for circulation of air through an air conditioned house in contact with concrete walls requiring a humidity within a critical range. The improvement consists of: a computer for processing sensed environmental input data including humidity and oxygen to produce output control signals for affecting the humidity of the air in the house; provision for an air flow circulation path through the house in contact with the concrete walls; sensing responsive to the amount of oxygen in the house for providing input signals to the computer; mixing for combining with the air in the house a variable amount of fresh atmospheric air to supply fresh oxygen; and humidity modifying means for modifying the humidity of the air flowing in the flow path responsive to the control signals.

Dumbeck, R.F.

1986-02-04T23:59:59.000Z

469

LFS Exhibit A General Conditions  

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

Dated 5-20-13 Dated 5-20-13 Subcontract No. 241314 Page 1 of 19 EXHIBIT "A" GENERAL CONDITIONS TABLE OF CONTENTS GC Title Page GC-1 DEFINITIONS (Aug 2012 - Deviation) ........................................................................................ 3 GC-2A AUTHORIZED REPRESENTATIVES, COMMUNICATIONS AND NOTICES (Jan 2010) ........................................................................................................................................... 4 GC-3 INDEPENDENT CONTRACTOR (Jun 2009) ............................................................................. 4 GC-4 SUBCONTRACT INTERPRETATION (Jun 2009) ...................................................................... 4 GC-5 NOTICE TO PROCEED (Jul 2011)............................................................................................. 4

470

Condition-Based Maintenance Guideline  

Science Conference Proceedings (OSTI)

Since the 1980s, EPRI has published various documents relating to predictive or condition-based maintenance (CBM) programs. These documents have served as a foundation for predictive maintenance programs within our industry. Many of these published documents are now more than 10 years old. As a result, EPRI is reviewing these documents to compare them with current practices and programs. EPRIs initial goal is to revise and update the guidance and create a principal core document on predictive and conditi...

2011-11-16T23:59:59.000Z

471

Discreteness of spectrum and positivity criteria for SchrŲdinger operators  

E-Print Network (OSTI)

We provide a class of necessary and sufficient conditions for the discreteness of spectrum of Schr\\"odinger operators with scalar potentials which are semibounded below. The classical discreteness of spectrum criterion by A.M.Molchanov (1953) uses a notion of negligible set in a cube as a set whose Wiener's capacity is less than a small constant times the capacity of the cube. We prove that this constant can be taken arbitrarily between 0 and 1. This solves a problem formulated by I.M.Gelfand in 1953. Moreover, we extend the notion of negligibility by allowing the constant to depend on the size of the cube. We give a complete description of all negligibility conditions of this kind. The a priori equivalence of our conditions involving different negligibility classes is a non-trivial property of the capacity. We also establish similar strict positivity criteria for the Schr\\"odinger operators with non-negative potentials.

Vladimir Maz'ya; Mikhail Shubin

2003-05-19T23:59:59.000Z

472

Economic Analysis of a Waste Water Resource Heat Pump Air-Conditioning System in North China  

E-Print Network (OSTI)

This paper describes the situation of waste water resource in north China and the characteristics and styles of a waste water resource heat pump system, and analyzes the economic feasibility of a waste water resource heat pump air-conditioning system including investment, operating fee and pay-back time. The results show that waste water resource heat pump air-conditioning system has a low investment, low operating fee and short payback time.

Chen, H.; Li, D.; Dai, X.

2006-01-01T23:59:59.000Z

473

Defense Waste Processing Facility -- Radioactive operations -- Part 3 -- Remote operations  

SciTech Connect

The Savannah River Site`s Defense Waste Processing Facility (DWPF) near Aiken, South Carolina is the nation`s first and world`s largest vitrification facility. Following a ten year construction period and nearly three years of non-radioactive testing, the DWPF began radioactive operations in March 1996. Radioactive glass is poured from the joule heated melter into the stainless steel canisters. The canisters are then temporarily sealed, decontaminated, resistance welded for final closure, and transported to an interim storage facility. All of these operations are conducted remotely with equipment specially designed for these processes. This paper reviews canister processing during the first nine months of radioactive operations at DWPF. The fundamental design consideration for DWPF remote canister processing and handling equipment are discussed as well as interim canister storage.

Barnes, W.M.; Kerley, W.D.; Hughes, P.D.

1997-06-01T23:59:59.000Z

474

Radiological Impacts from Operation of  

E-Print Network (OSTI)

conditions, moisture from GXS cooling towers could cause temporary reduction of visibility in nearby (mainly particularly by com- pressors, cooling towers and site traffic; but, noise levels at 100 m from GXS

Kemner, Ken

475

Operating Efficiency Comes From Teamwork  

E-Print Network (OSTI)

A group of operating and planning personnel formed the INter Plant Utilities Team [INPUT] to improve energy efficiency and reliability for Exxon's Baytown, Texas, refinery and chemical plants complex. The Team coordinates the day-to-day operations of the Site's utilities generation and distribution systems, which cross the operating boundaries of all three of the plants in the complex, and supports both capital improvements and long-term energy optimization projects for those systems. INPUTs origins go back to the early 1980's, when a utility coordination team was organized to manage the interplay of the Site's several high-level steam systems, and to reduce the impact of occasional steam shortages on the operations of both Refinery and Chemical Plant. Three years ago the current team was formed to find ways to make the systems more efficient and reliable, and to pave the way for the Site's cogeneration expansion. INPUT provides a regular forum for surfacing and resolving issues that affect the economics and reliability of the Site's utility systems, and is a commitment on the part of the three Plants at the Site to work together for the overall benefit of the Site --a commitment worth over $5,000,000 annually in operating cost savings.

Relyea, D. L.; Stone, A.

1997-04-01T23:59:59.000Z

476

Wind turbine generator with improved operating subassemblies  

DOE Patents (OSTI)

A wind turbine includes a yaw spring return assembly to return the nacelle from a position to which it has been rotated by yawing forces, thus preventing excessive twisting of the power cables and control cables. It also includes negative coning restrainers to limit the bending of the flexible arms of the rotor towards the tower, and stop means on the rotor shaft to orient the blades in a vertical position during periods when the unit is upwind when the wind commences. A pendulum pitch control mechanism is improved by orienting the pivot axis for the pendulum arm at an angle to the longitudinal axis of its support arm, and excessive creep is of the synthetic resin flexible beam support for the blades is prevented by a restraining cable which limits the extent of pivoting of the pendulum during normal operation but which will permit further pivoting under abnormal conditions to cause the rotor to stall.

Cheney, Jr., Marvin C. (24 Stonepost Rd., Glastonbury, CT 06033)

1985-01-01T23:59:59.000Z

477

Optimizing the Day to Day Operation of Utility Systems  

E-Print Network (OSTI)

At the 2002 IETC, Linnhoff March presented an overview of spreadsheet-based software packages to rigorously model site utility systems. Such models allow the user to plan future scenarios that might impact upon the system operation (energy saving projects, production changes, new equipment, future energy tariffs, etc). Indeed, since last year, the DOE has made utility system template models freely available to industrial users as reported elsewhere at the 2003 IETC. Until last year, most industrial applications of this utility system software were set up for planning purposes, largely off-line. More recently, these applications have become more sophisticated and can operate on-line in real time. They include complex optimization routines to ensure that the utility system is always being operated in the best possible way under any prevailing conditions of production, energy tariffs and other variables. These optimizer models typically reduce day-to-day utility system operating costs by between 2 and 5%.

Eastwood, A.; Bealing, C.

2003-05-01T23:59:59.000Z

478

An Effective EMS Hardware and Software Interface- The Trained Operator  

E-Print Network (OSTI)

A computerized Energy Management System (EMS) is a tool that allows the user to monitor and control building heating, ventilation, and air conditioning equipment (HVAC). All computerized tools require three main components to function effectively: hardware, software, and an interface between the two - the operator. EMS owners recognize the importance of proper system design, installation and program application. The importance of having a trained EMS operator is less recognized. The purpose of this paper is to focus on structured training programs and how they can improve the EMS operator's system knowledge and skills. Structured training programs, in contrast to the "school of hard knocks" approach, have clearly defined objectives. These objectives can be related to understanding and applying complex EMS strategies and translated into greater energy cost savings. An effective EMS program requires a trained operator in addition to proper hardware and software.

Cherry, C. L.

1986-06-01T23:59:59.000Z

479

Design of hybrid controller for dynamic positioning from calm to extreme sea conditions  

Science Conference Proceedings (OSTI)

High-level control of dynamic positioning systems on marine vessels using hybrid controller is developed to extend the operational weather window for marine operations to harsh environments. The types of hybrid controller considered are multi-output ... Keywords: Dynamic positioning, Extreme conditions, Hybrid controller, Marine vessels

Trong Dong Nguyen; Asgeir J. SÝrensen; Ser Tong Quek

2007-05-01T23:59:59.000Z

480

Conditioned Unitary Transformation on biphotons  

E-Print Network (OSTI)

A conditioned unitary transformation ($90^o$ polarization rotation) is performed at single-photon level. The transformation is realized by rotating polarization for one of the photons of a polarization-entangled biphoton state (signal photon) by means of a Pockel's cell triggered by the detection of the other (idler) photon after polarization selection. As a result, polarization degree for the signal beam changes from zero to the value given by the idler detector quantum efficiency. This result is relevant to practical realization of various quantum information schemes and can be used for developing a new method of absolute quantum efficiency calibration.

G. Brida; M. Chekhova; M. Genovese; M. Gramegna; L. Krivitsky; S. Kulik

2003-12-29T23:59:59.000Z