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Note: This page contains sample records for the topic "distribution design load" 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

Simplified calculation method for design cooling loads in underfloor air distribution (UFAD) systems  

E-Print Network [OSTI]

Underfloor Air Distribution (UFAD) Design Guide, Americanfor design cooling loads in Underfloor Air Distribution (for design cooling loads in underfloor air distribution (

Schiavon, Stefano; Lee, Kwang Ho; Bauman, Fred; Webster, Tom

2010-01-01T23:59:59.000Z

2

Assessment and Improvements of the CBE Underfloor Air Distribution (UFAD) Cooling Load Design Tool  

E-Print Network [OSTI]

Underfloor air distribution (UFAD) design guide. AmericanUnderfloor Air Distribution (UFAD) Cooling Load Design Toolload design tool for underfloor air distribution (UFAD)

Chen, Bin

2014-01-01T23:59:59.000Z

3

Development of a simplified cooling load design tool for underfloor air distribution (UFAD) systems.  

E-Print Network [OSTI]

Underfloor Air Distribution (UFAD) Design Guide, Atlanta:application and design of underfloor air distributionfor design cooling loads in underfloor air distribution (

Schiavon, Stefano; Lee, Kwang Ho; Bauman, Fred; Webster, Tom

2010-01-01T23:59:59.000Z

4

Cooling load design tool for UFAD systems.  

E-Print Network [OSTI]

Underfloor Air Distribution (UFAD) Design Guide. Atlanta:Load Design Tool for Underfloor Air Distribution Systems. ”for design cooling loads in underfloor air distribution (

Bauman, Fred; Schiavon, Stefano; Webster, Tom; Lee, Kwang Ho

2010-01-01T23:59:59.000Z

5

Design Concepts for Power Distribution Equipment Serving Non-Linear Loads  

E-Print Network [OSTI]

This paper explores the effects of power system harmonics induced by non-sinusoidal loads on electrical distribution equipment. The first portion examines the harmonic phenomenon to more fully understand harmonic current behavior from an intuitive...

Massey, G. W.

6

Scalable Load Distribution and Load Balancing for Dynamic Parallel Programs  

E-Print Network [OSTI]

shown that the algorithm scales according to the definition of scalability given following. LoadScalable Load Distribution and Load Balancing for Dynamic Parallel Programs E. Berger and J. C of an integrated load distribution-load balancing algorithm which was targeted to be both efficient and scalable

Berger, Emery

7

Data Management with Load Balancing in Distributed Computing  

Science Journals Connector (OSTI)

This paper reviews existing data management schemes and presents a design and development of a data management scheme with load balancing in a distributed computing. This scheme defines a variety of degree of load

Jong Sik Lee

2004-01-01T23:59:59.000Z

8

A comparison between two underfloor air distribution (UFAD) design tools  

E-Print Network [OSTI]

TWO UNDERFLOOR AIR DISTRIBUTION (UFAD) DESIGN TOOLS Bin CHENunderfloor air distribution (UFAD) design tools (ASHRAE RP-air distribution (UFAD), Cooling load, Design tool, HVAC

Chen, Bin; Schiavon, Stefano; Bauman, Fred S; Chen, Qingyan

2014-01-01T23:59:59.000Z

9

Assessment of Distributed Energy Adoption in Commercial Buildings:Part 1: An Analysis of Policy, Building Loads, Tariff Design, andTechnology Development  

SciTech Connect (OSTI)

Rapidly growing electricity demand brings into question theability of traditional grids to expand correspondingly while providingreliable service. An alternative path is the wider application ofdistributed energy resource (DER) that apply combined heat and power(CHP). It can potentially shave peak loads and satiate its growing thirstfor electricity demand, improve overall energy efficiency, and lowercarbon and other pollutant emissions. This research investigates a methodof choosing economically optimal DER, expanding on prior studies at theBerkeley Lab using the DER design optimization program, the DistributedEnergy Resources Customer Adoption Model (DER-CAM). DER-CAM finds theoptimal combination of installed equipment from available DERtechnologies, given prevailing utility tariffs, site electrical andthermal loads, and a menu of available equipment. It provides a globaloptimization, albeit idealized, that shows how the site energy loads canbe served at minimum cost by selection and operation of on-sitegeneration, heat recovery, and cooling. Utility electricity and gastariffs are key factors determining the economic benefit of a CHPinstallation, however often be neglected. This paper describespreliminary analysis on CHP investment climate in the U.S. and Japan. DERtechnologies, energy prices, and incentive measures has beeninvestigated.

Zhou, Nan; Nishida, Masaru; Gao, Weijun; Marnay, Chris

2005-12-31T23:59:59.000Z

10

Local Soot Loading Distribution in Cordierite Diesel Particulate...  

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

Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by Dynamic Neutron Radiography Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by...

11

Distributed XML Design Serge Abiteboul  

E-Print Network [OSTI]

Distributed XML Design Serge Abiteboul INRIA Saclay ­ �le-de-France & University Paris Sud, FR that a distribution design of the document tree is given, provid- ing an XML tree some of whose leaves are "docking.4 [Distributed Systems]: Distributed databases; H.2.1 [Logical Design]: Data models; Schema and subschema General

Paris-Sud XI, Université de

12

Building Energy Software Tools Directory: HAP System Design Load  

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

HAP System Design Load HAP System Design Load HAP System Design Load logo. Provides the load estimating and system design features found in its popular cousin � Carrier�s Hourly Analysis Program (HAP). By focusing on system design features, the HAP System Design Load program serves as a simpler, more efficient tool for those users only interested in system design; energy simulation features are omitted. Like the HAP program, HAP System Design Load provides the ease of use of a Windows-based graphical user interface and the computing power of modern 32-bit software. HAP System Design Load uses a system-based approach to HVAC load estimating. This approach tailors sizing procedures and results to the specific type of system being considered. A wide variety of equipment types

13

Application of the Grillage Methodology to Determine Load Distribution Factors for Spread Slab Beam Bridges  

E-Print Network [OSTI]

Transverse load distribution behavior amongst bridge girders is influenced by many parameters including girder material properties, spacing, skew, deck design, and stiffening element interactions. In order to simply and conservatively approximate...

Petersen-Gauthier, Joel

2013-08-09T23:59:59.000Z

14

Measuring Advances in HVAC Distribution System Design  

E-Print Network [OSTI]

Advances in HV AC Distribution System Design Ellen FranconiAdvances in HVAC Distribution System Design Ellen Franconisavings result from distribution system design improvements,

Franconi, E.

2011-01-01T23:59:59.000Z

15

Designing Distributed Applications with Mobile Code Paradigms  

E-Print Network [OSTI]

Designing Distributed Applications with Mobile Code Paradigms Antonio Carzaniga Politecnico di code, design paradigms, distributed applica­ tions. INTRODUCTION Distributed systems have been with the design of distributed applications, that aims at identifying the distributable components

Carzaniga, Antonio

16

Transformer design and application considerations for nonsinusoidal load currents  

SciTech Connect (OSTI)

The use of adjustable-speed drives requires transformers capable of withstanding high levels of harmonic currents under normal operating conditions. Experience has been that overheating problems are much more common with dry-type transformers than with liquid-filled transformers. Transformer insulation life is determined by the hot spot temperature but confirmation of hot spot temperature rise is one performance characteristic which is ignored in industry standards. This is especially important for transformers rated for nonsinusoidal load currents. Hot spot allowances used in IEEE standards for ventilated dry-type transformers were developed in 1944 and recent data indicates that revisions are required. The design of transformers for nonsinusoidal load currents should include an analysis of the eddy loss distribution in the windings and calculation of the hot spot temperature rise. Calculations and thermal tests giving only average winding temperature rises are not sufficient. Thermal tests with nonsinusoidal currents and measurements of hot spot temperature rises are extremely difficult on large transformers. The combination of testing and analysis may be the only economically practical approach. Analysis indicates that the dry type transformer hot spot temperature is very sensitive to the eddy loss magnitude and distribution. The Underwriters Laboratories Inc. (UL) K-factor rated dry type transformer and the recommended practices given in ANSI/IEEE C57.110 are reviewed. When purchasing transformers subject to nonsinusoidal load currents, considerations should be given to the manufacturer`s development program and capability to calculate the eddy loss distribution and hot spot temperatures.

Pierce, L.W. [General Electric Co., Rome, GA (United States)] [General Electric Co., Rome, GA (United States)

1996-05-01T23:59:59.000Z

17

PARAMETRIC MODELS FOR ESTIMATING WIND TURBINE FATIGUE LOADS FOR DESIGN  

E-Print Network [OSTI]

loads. #12;2 INTRODUCTION Design constraints for wind turbine structures fall into either extreme load1 PARAMETRIC MODELS FOR ESTIMATING WIND TURBINE FATIGUE LOADS FOR DESIGN Lance Manuel1 Paul S, TX 78712 2 Sandia National Laboratories, Wind Energy Technology Department, Albuquerque, NM 87185

Sweetman, Bert

18

Assessment of Distributed Energy Adoption in Commercial Buildings: Part 1: An Analysis of Policy, Building Loads, Tariff Design, and Technology Development  

E-Print Network [OSTI]

are distributed to the New York State Energy Research andFunding for Energy Efficiency and DER In New York State, theNew York State Public Service Commission (NYPSC), the Long Island Power Authority (LIPA), KeySpan, the California Energy

Zhou, Nan; Nishida, Masaru; Gao, Weijun; Marnay, Chris

2005-01-01T23:59:59.000Z

19

Practical Stability Assessement of Distributed Synchronous Generators Under Load Variations  

E-Print Network [OSTI]

Practical Stability Assessement of Distributed Synchronous Generators Under Load Variations Roman the practical stability of distribution systems with synchronous generators subject to changes in the system a mathematical model of the distribution system with synchronous generators in the form of a switched affine

Pota, Himanshu Roy

20

Designing Distributed Applications with Mobile Code Paradigms  

E-Print Network [OSTI]

Designing Distributed Applications with Mobile Code Paradigms Antonio Carzaniga Politecnico di the selection of the correct paradigm for a given distributed application. Keywords Mobile code, design with the design of distributed applications, that aims at identifying the distributable components

Carzaniga, Antonio

Note: This page contains sample records for the topic "distribution design load" 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

Universal Behavior of Load Distribution in Scale-Free Networks  

Science Journals Connector (OSTI)

We study a problem of data packet transport in scale-free networks whose degree distribution follows a power law with the exponent ?. Load, or “betweenness centrality,” of a vertex is the accumulated total number of data packets passing through that vertex when every pair of vertices sends and receives a data packet along the shortest path connecting the pair. It is found that the load distribution follows a power law with the exponent ??2.2(1), insensitive to different values of ? in the range, 2load exponent is a universal quantity to characterize scale-free networks.

K.-I. Goh; B. Kahng; D. Kim

2001-12-12T23:59:59.000Z

22

Enhancement of loading capacity of distribution system through distributed generator placement considering techno-economic benefits with load growth  

Science Journals Connector (OSTI)

Abstract Load growth in a system is a natural phenomenon. With the increase in load demand, system power loss and voltage drop increases. Distributed generators (DGs) are one of the best solutions to cope up with the load growth if they are allocated appropriately in the distribution system. In this work, optimal size and location of multiple \\{DGs\\} are found to cater the incremental load on the system and minimization of power loss without violating system constraints. For this a predetermined annual load growth up to five years is considered with voltage regulation as a constraint. The particle swarm optimization with constriction factor approach is applied to determine the optimum size and location with multiple DGs. To see the effect of load growth on system, 33-node IEEE standard test case is considered. It is observed that with the penetration of multiple number of \\{DGs\\} in distribution system, there is great improvement in several distribution system parameters. Moreover, the loading capacity of distribution system is enhanced through DG placement and its techno-economic benefits are also established.

Khyati D. Mistry; Ranjit Roy

2014-01-01T23:59:59.000Z

23

Dynamic Load Balancing for the Distributed Mining of Molecular Structures  

E-Print Network [OSTI]

Dynamic Load Balancing for the Distributed Mining of Molecular Structures Giuseppe Di Fatta, Member the data mining community, where algorithms to find frequent graphs have received increasing attention over a distributed approach to the frequent subgraph mining problem to discover interesting patterns in molecular

Berthold, Michael R.

24

Distributed dynamic load balancing for pipelined computations on heterogeneous systems  

Science Journals Connector (OSTI)

One of the most significant causes for performance degradation of scientific and engineering applications on high performance computing systems is the uneven distribution of the computational work to the resources of the system. This effect, which is ... Keywords: Distributed model, Dynamic load balancing algorithms, Loops with dependencies, Master-worker model, Non-dedicated heterogeneous systems, Synchronization, Weighting

Ioannis Riakiotakis; Florina M. Ciorba; Theodore Andronikos; George Papakonstantinou

2011-10-01T23:59:59.000Z

25

The Load Distribution Problem in a Processor Ring Francis C.M. Lau  

E-Print Network [OSTI]

the load balancing procedure into the following phases: load measurement, calculation of load averageThe Load Distribution Problem in a Processor Ring Francis C.M. Lau Department of Computer Science picture of the system load and the average load, the load distribution problem is to find a suitable

Lau, Francis C.M.

26

The Load Distribution Problem in a Ring of Processors Francis C.M. Lau \\Lambda  

E-Print Network [OSTI]

into the following phases: load measurement, calculation of load average, generation of load distribution scheduleThe Load Distribution Problem in a Ring of Processors Francis C.M. Lau \\Lambda Department of Computer Science The University of Hong Kong March 1998 Abstract Given a global picture of the system load

Lau, Francis C.M.

27

Designing Distributed, Real-Time Systems  

E-Print Network [OSTI]

- - Designing Distributed, Real-Time Systems Kevin L. Mills INFT 796 SUMMER 1993 DIRECTED READINGS IN SOFTWARE ENGINEERING WITH DR. H. GOMAA GEORGE MASON UNIVERSITY #12;Designing Distributed, Real-Time Systems problem faced by designers of software systems, and particularly by designers of distributed, real

Mills, Kevin

28

Describing and Analyzing Distributed Software System Designs  

E-Print Network [OSTI]

Describing and Analyzing Distributed Software System Designs GEORGE S. AVRUNIN and JACK C. WILEDEN by applying it to a realistic distributed software-system design problem involving mutual exclusion Additional Key Words and Phrases: Analysis of software design, design notation, distributed mutual exclusion

Avrunin, George S.

29

Fuel loading and homogeneity analysis of HFIR design fuel plates loaded with uranium silicide fuel  

SciTech Connect (OSTI)

Twelve nuclear reactor fuel plates were analyzed for fuel loading and fuel loading homogeneity by measuring the attenuation of a collimated X-ray beam as it passed through the plates. The plates were identical to those used by the High Flux Isotope Reactor (HFIR) but were loaded with uranium silicide rather than with HFIR`s uranium oxide fuel. Systematic deviations from nominal fuel loading were observed as higher loading near the center of the plates and underloading near the radial edges. These deviations were within those allowed by HFIR specifications. The report begins with a brief background on the thermal-hydraulic uncertainty analysis for the Advanced Neutron Source (ANS) Reactor that motivated a statistical description of fuel loading and homogeneity. The body of the report addresses the homogeneity measurement techniques employed, the numerical correction required to account for a difference in fuel types, and the statistical analysis of the resulting data. This statistical analysis pertains to local variation in fuel loading, as well as to ``hot segment`` analysis of narrow axial regions along the plate and ``hot streak`` analysis, the cumulative effect of hot segment loading variation. The data for all twelve plates were compiled and divided into 20 regions for analysis, with each region represented by a mean and a standard deviation to report percent deviation from nominal fuel loading. The central regions of the plates showed mean values of about +3% deviation, while the edge regions showed mean values of about {minus}7% deviation. The data within these regions roughly approximated random samplings from normal distributions, although the chi-square ({chi}{sup 2}) test for goodness of fit to normal distributions was not satisfied.

Blumenfeld, P.E.

1995-08-01T23:59:59.000Z

30

Lessons learned in modeling Underfloor Air Distribution system  

E-Print Network [OSTI]

Underfloor Air Distribution (UFAD) Design Guide. Atlanta:for design cooling loads in underfloor air distribution (

Lee, Kwang Ho; Schiavon, Stefano; Webster, Tom; Bauman, Fred; Feng, Jingjuan; Hoyt, Tyler

2011-01-01T23:59:59.000Z

31

Development of load and resistance factor design for FRP strengthening of reinforced concrete structures  

E-Print Network [OSTI]

distribution and the loads follow normal distributions.of time-span specific load models follows, a more detailedfollows the technique detailed in the Transportation Research Circular, Calibration to Determine Load and

Atadero, Rebecca Anne

2006-01-01T23:59:59.000Z

32

Spatial Variation and Interpolation of Wind Speed Statistics and Its Implication in Design Wind Load.  

E-Print Network [OSTI]

??Consideration of wind load is important for design of engineered structures. Codification of wind load for structural design requires the estimation of the quantiles or… (more)

Ye, Wei

2013-01-01T23:59:59.000Z

33

Tailoring UNITY to Distributed Program Design ?  

E-Print Network [OSTI]

Tailoring UNITY to Distributed Program Design ? Michel Charpentier, Mamoun Filali, Philippe Mauran. As a general framework, UNITY does not offer any specific facility for the design of distributed systems to help the design of distributed systems in UNITY. 1 Introduction UNITY is intended to be a general

Charpentier, Michel

34

Tailoring UNITY to Distributed Program Design  

E-Print Network [OSTI]

Tailoring UNITY to Distributed Program Design Michel Charpentier, Mamoun Filali, Philippe Mauran, G. As a general framework, UNITY does not offer any specific facility for the design of distributed systems to help the design of distributed systems in UNITY. 1 Introduction UNITY is intended to be a general

Grigoras, .Romulus

35

Plutonium Immobilization Project System Design Description for Can Loading System  

SciTech Connect (OSTI)

The purpose of this System Design Description (SDD) is to specify the system and component functions and requirements for the Can Loading System and provide a complete description of the system (design features, boundaries, and interfaces), principles of operation (including upsets and recovery), and the system maintenance approach. The Plutonium Immobilization Project (PIP) will immobilize up to 13 metric tons (MT) of U.S. surplus weapons usable plutonium materials.

Kriikku, E.

2001-02-15T23:59:59.000Z

36

Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by Dynamic Neutron Radiography  

Broader source: Energy.gov [DOE]

Quantitative analysis of the soot loading and soot distribution for Cordierite type DPFs are studied under controlled conditions.

37

ALBL: an adaptive load balancing algorithm for distributed web systems  

Science Journals Connector (OSTI)

This paper presents an adaptive load balancing algorithm (ALBL) for cluster-based web systems. The balancing policy is based on two criteria: HTTP process time and network delay. The former describes web server ability to process a forthcoming request, while the latter tries to estimate network conditions. Periodic criteria calculations are performed by agents at the web switch and the weight estimation process is transparent to web servers enhancing therefore distributed system's scalability. We put to test our implementation against known blind selection balancing algorithms used at web-farms such as: Round Robin, stateful ones such as Least Connections and adaptive ones such as Least Load. We also put to test performance and scalability of previous algorithms. From our testbed scenario results we show that ALBL algorithm outperforms stateless and stateful algorithms and also presents significant performance gains towards adaptive algorithms. We also show that our algorithm scales well as the number of balancing servers and web cluster's requests rate increases. We also pinpoint ALBL algorithm ability to predict network conditions and web servers load without the use of feedback information obtained by web servers but frequent service and network probes towards web servers issued by the web switch.

Sotirios Kontogiannis; Alexandros Karakos

2014-01-01T23:59:59.000Z

38

Load Distributed Whole-body Motion Generation Method for Humanoids by  

E-Print Network [OSTI]

1 Load Distributed Whole-body Motion Generation Method for Humanoids by Minimizing Average Joint. Keywords. Humanoid robot, Load distribution, Whole-body motion generation method, Joint Torque, Environment generation method under whole-body coor- dination, it is very important to consider a load distribution

Yamamoto, Hirosuke

39

Using a 3D Needle Tissue Interaction Loading basis to optimize the design of an instrumented needle  

E-Print Network [OSTI]

Using a 3D Needle ­Tissue Interaction Loading basis to optimize the design of an instrumented-IMAG UMR5525, Grenoble, France Keywords: Needle deformation; Load distribution; Instrumented needle of the needle which does not follow the planned trajectory. Furthermore, the amount of irradiation during

Paris-Sud XI, Université de

40

Architecture induced by distributed backstepping design Mihailo R. Jovanovic  

E-Print Network [OSTI]

Architecture induced by distributed backstepping design Mihailo R. Jovanovi´c jmihailo architecture induced by distributed backstepping design? We demonstrate that distributed backstepping design be designed. Index Terms-- Systems on Lattices; Distributed Back- stepping Design; Controller Architecture. I

Jovanovic, Mihailo

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


41

Thermal decay in underfloor air distribution (UFAD) systems: Fundamentals and influence on system performance  

E-Print Network [OSTI]

Underfloor Air Distribution (UFAD) Design Guide. Atlanta:for design cooling loads in underfloor air distribution (

Lee, Kwang Ho; Schiavon, Stefano; Bauman, Fred; Webster, Tom

2012-01-01T23:59:59.000Z

42

Adjustable Robust Parameter Design with Unknown Distributions  

E-Print Network [OSTI]

Mar 27, 2013 ... Adjustable Robust Parameter Design with Unknown Distributions. ihsan Yanikoglu(i.yanikoglu ***at*** uvt.nl) Dick den Hertog(d.denhertog ...

ihsan Yanikoglu

2013-03-27T23:59:59.000Z

43

Distribution Load Modelling for Demand Side Management and End-Use Efficiency  

Science Journals Connector (OSTI)

The problem of electric load modelling for low aggregation levels is addressed in the paper, being the object to obtain good “response” behaviour models of any group of loads in an electric energy distribution...

C. Álvarez; A. Gabaldón

1994-01-01T23:59:59.000Z

44

QUANTIFYING THE CONVERGENCE TIME OF DISTRIBUTED DESIGN PROCESSES  

E-Print Network [OSTI]

QUANTIFYING THE CONVERGENCE TIME OF DISTRIBUTED DESIGN PROCESSES Erich Devendorf Research Engineer design processes. In distributed design, large systems are decomposed into smaller, coupled design individual objectives. The number of iterations required to reach equilibrium solutions in distributed design

Lewis, Kemper E.

45

Force control system design for aerodynamic load simulator  

Science Journals Connector (OSTI)

A dynamic load simulator which can reproduce on-ground the aerodynamic hinge moment of control surface is an essential rig for the performance and stability test of an aircraft actuation system. The hinge moment varies widely over the flight envelope depending on the specific flight condition and maneuvering status. To replicate the wide spectrum of this hinge moment variation within some accuracy bounds, a force controller is designed based on the quantitative feedback theory (QFT). A dynamic model of load actuation system is derived, and verified through the experiment. The efficacy of QFT force controller is verified by a numerical simulation, in which combined aircraft dynamics, flight control law and hydraulic actuation system dynamics of aircraft control surface are considered.

Yoonsu Nam; Sung Kyung Hong

2002-01-01T23:59:59.000Z

46

Identification of Critical Parameters for Distribution Networks with DFIG and Dynamic loads  

E-Print Network [OSTI]

Identification of Critical Parameters for Distribution Networks with DFIG and Dynamic loads M. S of distribution network with Doubly Fed Induction Generator (DFIG) is presented in a different way where an analysis to investigate the critical parameters for distribution systems with dynamic loads where DFIGs

Pota, Himanshu Roy

47

Variability of Load and Net Load in Case of Large Scale Distributed Wind Power  

SciTech Connect (OSTI)

Large scale wind power production and its variability is one of the major inputs to wind integration studies. This paper analyses measured data from large scale wind power production. Comparisons of variability are made across several variables: time scale (10-60 minute ramp rates), number of wind farms, and simulated vs. modeled data. Ramp rates for Wind power production, Load (total system load) and Net load (load minus wind power production) demonstrate how wind power increases the net load variability. Wind power will also change the timing of daily ramps.

Holttinen, H.; Kiviluoma, J.; Estanqueiro, A.; Gomez-Lazaro, E.; Rawn, B.; Dobschinski, J.; Meibom, P.; Lannoye, E.; Aigner, T.; Wan, Y. H.; Milligan, M.

2011-01-01T23:59:59.000Z

48

Composite bridge behavior and load distribution influenced by shakedown and diaphragms  

E-Print Network [OSTI]

and the corresponding distribution factors compared almost identically before and after shakedown. Negative moments and distribution factors for the girder cross- sections near the interior pier regions were only slightly larger (less than 10'%%d) following shakedown...'%%d for one lane of truck loads and 8-10'%%d for more than one lane of truck loads. These trends were less in the positive- moment regions and for multiple-lanes loaded. The distribution factors computed from the experimental and finite...

Gilstrap, Christopher Max

2012-06-07T23:59:59.000Z

49

15 - Offshore environmental loads and wind turbine design: impact of wind, wave, currents and ice  

Science Journals Connector (OSTI)

Abstract: In order to design offshore wind turbines, an engineer must understand the environmental loads that are imposed on the structure. This chapter describes the wind, wave, current and ice loading phenomena and how to translate the environmental characteristics to design loads against which the structure must be designed.

J. Van Der Tempel; N.F.B. Diepeveen; W.E. De Vries; D. Cerda Salzmann

2011-01-01T23:59:59.000Z

50

Micro-grid operation of inverter based distributed generation with voltage and frequency dependent loads  

E-Print Network [OSTI]

Distribution systems are experiencing increasing penetration of distributed generation (DG). One attractive option is to use the available DG capacity during utility outages by forming planned micro-grids. Load sharing ...

Zeineldin, H. H.

51

Modeling simple trigeneration systems for the distribution of environmental loads  

Science Journals Connector (OSTI)

Integration of thermoeconomics and Life Cycle Analysis was carried out within the framework of an Environmental Management Information System. This combined approach identified where environmental loads were generated and tracked environmental loads ... Keywords: CO2, Environmental Management Information System, Environmental costs, Material flow networks, Trigeneration, Umberto software

Monica Carvalho; Miguel A. Lozano; Luis M. Serra; Volker Wohlgemuth

2012-04-01T23:59:59.000Z

52

Locality-Preserving Dynamic Load Balancing for Data-Parallel Applications on Distributed-Memory Multiprocessors  

E-Print Network [OSTI]

Locality-Preserving Dynamic Load Balancing for Data-Parallel Applications on Distributed Chung Cheng University, Chiayi, Taiwan, R.O.C. pangfeng@cs.ccu.edu.tw Abstract Load balancing and data the load balancing prob- lem of data-parallel loops with predictable neigh- borhood data references

Liu, Pangfeng

53

Optimal Power Allocation and Load Distribution for Multiple Heterogeneous Multicore Server  

E-Print Network [OSTI]

Optimal Power Allocation and Load Distribution for Multiple Heterogeneous Multicore Server clouds and data centers, the aggregated performance of the cloud of clouds can be optimized by load of performance and energy efficiency. The present paper aims to develop power and performance constrained load

Stojmenovic, Ivan

54

Minimized Space Conditioning Distribution Strategy for Low-load Homes  

Broader source: Energy.gov [DOE]

This presentation was given at the Summer 2012 DOE Building America meeting on July 26, 2012, and addressed the question What are the best HVAC solutions for low-load, high performance homes?"

55

Small-Signal Stability Assessment of Active Distribution Networks with Dynamic Loads  

E-Print Network [OSTI]

. Index Terms-- Distributed generation, eigenvalue, induction motor, small-signal stability, voltage mode-- This paper investigates small-signal stability of a distribution system with distributed generator and induction motor load, as a dynamic element. The analysis is carried out over a distribution test system

Pota, Himanshu Roy

56

Design and Analysis of a Load Balancing Strategy in Data Grids  

E-Print Network [OSTI]

Design and Analysis of a Load Balancing Strategy in Data Grids Xiao Qin Department of Computer Grids and, therefore, the focus of this paper is to design and evaluate a data-aware load slowdowns imposed on jobs in a Data Grid environment. Next, we propose a load-balancing strategy that aims

Qin, Xiao

57

Abstract--This paper presents the impact of different types of load models in distribution network with distributed wind  

E-Print Network [OSTI]

as a major enabler of the smart grid for the integration of small and medium sized renewable energy basedAbstract--This paper presents the impact of different types of load models in distribution network with distributed wind generation. The analysis is carried out for a test distribution system representative

Pota, Himanshu Roy

58

Pattern-driven Partitioning in Designing Distributed Object Applications  

E-Print Network [OSTI]

Pattern-driven Partitioning in Designing Distributed Object Applications Widayashanti P. Sardjono of the fundamental challenges in designing distributed object applications (DOAs) is application partitioning, particularly distributable ones, are discovered. This research proposes a technique to help designers

Simons, Anthony J. H.

59

Topology and Design of Wide-Band 3D Metamaterials made of Periodically Loaded Transmission Line Arrays  

E-Print Network [OSTI]

Topology and Design of Wide-Band 3D Metamaterials made of Periodically Loaded Transmission Line index over a wide frequency band. These metamaterials consist of a three- dimensional transmission line and permeability. The cubic-cell transmission line host network is a physical realization of the 3D distributed

Tentzeris, Manos

60

Integration of HVAC System Design with Simplified Duct Distribution...  

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

Integration of HVAC System Design with Simplified Duct Distribution - Building America Top Innovation Integration of HVAC System Design with Simplified Duct Distribution - Building...

Note: This page contains sample records for the topic "distribution design load" 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

Nonlinear DSTATCOM controller design for distribution network with distributed generation to enhance voltage stability  

E-Print Network [OSTI]

Nonlinear DSTATCOM controller design for distribution network with distributed generation Accepted 19 June 2013 Keywords: Distributed generation Distribution network DSATACOM Partial feedback connected to a distribution network with distributed generation (DG) to regulate the line voltage

Pota, Himanshu Roy

62

Designing shipboard electrical distribution systems for optimal reliability.  

E-Print Network [OSTI]

??Analysis was performed to quantify and compare the reliability of several different notional shipboard DC distribution system topologies in serving their equipment loads. Further, the… (more)

Stevens, McKay Benjamin

2013-01-01T23:59:59.000Z

63

AIAA-2004-0502 A COMPARISON OF WIND TURBINE DESIGN LOADS IN DIFFERENT  

E-Print Network [OSTI]

in the gross wind environment and in the extreme response given wind conditions to establish nominal designAIAA-2004-0502 1 A COMPARISON OF WIND TURBINE DESIGN LOADS IN DIFFERENT ENVIRONMENTS USING INVERSE, Austin, TX 78712 ABSTRACT* The influence of turbulence conditions on the design loads for wind turbines

Manuel, Lance

64

Tackling the Photovoltaic Integration Challenge in the Distribution Network with Deferrable Load  

E-Print Network [OSTI]

.g., water heater) as well as ESS (e.g., battery systems) can be used to reduce the reverse energy flowTackling the Photovoltaic Integration Challenge in the Distribution Network with Deferrable Load systems (ESSs) in households. When the energy generated by PV units is greater than the aggregate load

Wong, Vincent

65

NEEMON Algorithm Based on Data Locality for Priority Based Dynamic Load Balancing in Distributed Database  

Science Journals Connector (OSTI)

A load balancing scheme comprises of three phases: information ... collection, decision making based on information and data migration. In distributed database, it is important to take data locality into account,...

Neera Batra; A. K. Kapil

2010-01-01T23:59:59.000Z

66

Minor Actinides Loading Optimization for Proliferation Resistant Fuel Design - BWR  

SciTech Connect (OSTI)

One approach to address the United States Nuclear Power (NP) 2010 program for the advanced light water reactor (LWR) (Gen-III+) intermediate-term spent fuel disposal need is to reduce spent fuel storage volume while enhancing proliferation resistance. One proposed solution includes increasing burnup of the discharged spent fuel and mixing minor actinide (MA) transuranic nuclides (237Np and 241Am) in the high burnup fuel. Thus, we can reduce the spent fuel volume while increasing the proliferation resistance by increasing the isotopic ratio of 238Pu/Pu. For future advanced nuclear systems, MAs are viewed more as a resource to be recycled, and transmuted to less hazardous and possibly more useful forms, rather than simply disposed of as a waste stream in an expensive repository facility. MAs play a much larger part in the design of advanced systems and fuel cycles, not only as additional sources of useful energy, but also as direct contributors to the reactivity control of the systems into which they are incorporated. A typical boiling water reactor (BWR) fuel unit lattice cell model with UO2 fuel pins will be used to investigate the effectiveness of adding MAs (237Np and/or 241Am) to enhance proliferation resistance and improve fuel cycle performance for the intermediate-term goal of future nuclear energy systems. However, adding MAs will increase plutonium production in the discharged spent fuel. In this work, the Monte-Carlo coupling with ORIGEN-2.2 (MCWO) method was used to optimize the MA loading in the UO2 fuel such that the discharged spent fuel demonstrates enhanced proliferation resistance, while minimizing plutonium production. The axial averaged MA transmutation characteristics at different burnup were compared and their impact on neutronics criticality and the ratio of 238Pu/Pu discussed.

G. S. Chang; Hongbin Zhang

2009-09-01T23:59:59.000Z

67

An Overview of the Design of Distributed Oz Seif Haridi  

E-Print Network [OSTI]

An Overview of the Design of Distributed Oz Seif Haridi Swedish Institute of Computer Science (SICS a design for a distributed programming sys­ tem, Distributed Oz, that abstracts away the network to be comparable to centralized (i.e., non­distributed) program­ ming. We propose to achieve this by designing

Haridi, Seif

68

Helium Refrigerator Design for Pulsed Heat Load in Tokamaks  

SciTech Connect (OSTI)

Nuclear fusion reactors of the Tokamak type will be operated in a pulsed mode requiring the helium refrigerator to remove periodically large heat loads in time steps of approximately one hour. What are the necessary steps for a refrigerator to cope with such load variations?A series of numerical simulations has been performed indicating the possibility of an active refrigerator control with low exergetic losses. A basic comparison is made between the largest existing refrigerator sizes and the size required to service for example the ITER requirements.

Kuendig, A.; Schoenfeld, H. [Linde Kryotechnik AG, Dattlikonerstrasse 5, CH-8422 Pfungen (Switzerland)

2006-04-27T23:59:59.000Z

69

Design and Simulation of a Boron-loaded Neutron Spectrometer  

E-Print Network [OSTI]

The measurement of the distribution of kinetic energy carried by neutron particles is of interest to the health physics and radiation protection industry. Neutron particle spectral fluence is essential to the calculation of absorbed dose, equivalent...

Martin, Thomas

2012-10-19T23:59:59.000Z

70

Cost Modeling and Design Techniques for Integrated Package Distribution Systems  

E-Print Network [OSTI]

Cost Modeling and Design Techniques for Integrated Package Distribution Systems Karen R. Smilowitz and Carlos F. Daganzo December 23, 2005 Abstract Complex package distribution systems are designed using-scale integrated distribution networks. While the network design problem is quite complex, we demonstrate

Smilowitz, Karen

71

On Codebook Design for Distributed Relay Beamforming Network  

E-Print Network [OSTI]

On Codebook Design for Distributed Relay Beamforming Network Min Zheng and Min Dong Department-antenna beamforming in point-to-point systems [1]­[3], the quantization design for distributed relay beamforming has design for quantized distributed relay beamforming. Each relay in the network has its individual power

Dong, Min

72

Designing Directories in Distributed Systems: A Systematic Framework  

E-Print Network [OSTI]

Designing Directories in Distributed Systems: A Systematic Framework K. Mani Chandy and Eve M of directory­based distributed applications. We evaluate a space of directory designs using our frame­ work. We distributed applications, including directory design. We propose a weaker con­ cept: estimation. We define

73

Uranium-loaded apoferritin with antibodies attached: molecular design for uranium neutron-capture therapy  

Science Journals Connector (OSTI)

...Molecular design for uranium neutron-capture therapy (cancer/immunotherapy...methodology for cancer therapy. Boron...system using uranium, as described...800 to =400 uranium atoms per apoferritin...uranyl ions were depleted, and loading...

J F Hainfeld

1992-01-01T23:59:59.000Z

74

Field tests and new design procedure for laterally loaded drilled shafts in clay  

E-Print Network [OSTI]

FIELD TESTS AND NEW DESIGN PROCEDURE FOR LATERALLY LOADED DRILLED SHAFTS IN CLAY A Thesis by l1ARK WILLIAM BIERSCHWALE Submitted to ihe Graduate College Texas A8M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1980 Major Subject: Civil Engineering FIELD TESTS AND NEW DESIGN PROCEDURE FOR LATERALLY LOADED DRILLED SHAFTS IN CLAY A Thesis by NARK WILLIAM BIERSCHWALE Approved as to style and content by: Harry M. Coyle - Chairman...

Bierschwale, Mark W.

1980-01-01T23:59:59.000Z

75

Distributed Load Demand Scheduling in Smart Grid to Minimize Electricity Generation Cost  

E-Print Network [OSTI]

is to perform demand side management (DSM) [1], which aims at matching the consum- ers' electricity demand between electricity consumption and generation. On the consumption side, electric demand ramps upDistributed Load Demand Scheduling in Smart Grid to Minimize Electricity Generation Cost Siyu Yue

Pedram, Massoud

76

Carbon-aware Load Balancing for Geo-distributed Cloud Services  

E-Print Network [OSTI]

Carbon-aware Load Balancing for Geo-distributed Cloud Services Zhi Zhou1 Fangming Liu1 Yong Xu1 Chinese University of Hong Kong. Abstract--Recently, datacenter carbon emission has become an emerging of the electricity carbon footprint can be fully exploited to further green the cloud running on top

Lui, John C.S.

77

Wind and Load Forecast Error Model for Multiple Geographically Distributed Forecasts  

SciTech Connect (OSTI)

The impact of wind and load forecast errors on power grid operations is frequently evaluated by conducting multi-variant studies, where these errors are simulated repeatedly as random processes based on their known statistical characteristics. To generate these errors correctly, we need to reflect their distributions (which do not necessarily follow a known distribution law), standard deviations, auto- and cross-correlations. For instance, load and wind forecast errors can be closely correlated in different zones of the system. This paper introduces a new methodology for generating multiple cross-correlated random processes to simulate forecast error curves based on a transition probability matrix computed from an empirical error distribution function. The matrix will be used to generate new error time series with statistical features similar to observed errors. We present the derivation of the method and present some experimental results by generating new error forecasts together with their statistics.

Makarov, Yuri V.; Reyes Spindola, Jorge F.; Samaan, Nader A.; Diao, Ruisheng; Hafen, Ryan P.

2010-11-02T23:59:59.000Z

78

Algorithms for Selfish Agents Mechanism Design for Distributed Computation  

E-Print Network [OSTI]

Algorithms for Selfish Agents Mechanism Design for Distributed Computation Noam Nisan \\Lambda mechanism design in our distributed computation setting. We do not intend here to give a balanced Abstract This paper considers algorithmic problems in a distributed setting where the participants cannot

Chen, Yiling

79

Design of Dissimilarity Measures: a New Dissimilarity between Species Distribution  

E-Print Network [OSTI]

Design of Dissimilarity Measures: a New Dissimilarity between Species Distribution Areas Christian, 20146 Hamburg, Germany Abstract. We give some guidelines for the choice and design of dissimilarity mea distribution areas in biogeography. Species distribution data can be digitized as presences and absences

Guillas, Serge

80

State Control Design for Linear Systems with Distributed Time Delays  

E-Print Network [OSTI]

State Control Design for Linear Systems with Distributed Time Delays Daniel Gontkovic and Róbert with distributed time delays. Using an extended form of the Lyapunov- Krasovskii functional the controller design involving distributed time delays is a problem of large practical interest where intensive activity are done

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "distribution design load" 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

Distributed Cognition: A Conceptual Framework for Design-for-All  

E-Print Network [OSTI]

Distributed Cognition: A Conceptual Framework for Design-for-All Gerhard Fischer University for Design-for-All The theory of distributed cognition [Hollan et al., 2001; Salomon, 1993] provides of Colorado, Center for LifeLong Learning and Design (L3D) Department of Computer Science, 430 UCB Boulder, CO

Fischer, Gerhard

82

Sharing tacit design knowledge in a distributed design environment  

E-Print Network [OSTI]

Throughout the life-cycle of a design project, architects rely heavily on their tacit design knowledge to support design decisions. Tacit knowledge is highly personal and implicit. As such, it encompasses expertise, intuitive understanding...

Woo, Jeong-Han

2006-10-30T23:59:59.000Z

83

The urban design of distributed energy resources  

E-Print Network [OSTI]

Distributed energy resources (DERs) are a considerable research focus for cities to reach emissions reduction goals and meet growing energy demand. DERs, consisting of local power plants and distribution infrastructure, ...

Sheehan, Travis (Travis P.)

2012-01-01T23:59:59.000Z

84

System level design of power distribution network for mobile computing platforms  

E-Print Network [OSTI]

Regulator based Power Distribution Design under WorstRegulator based Power Distribution Design under WorstRegulator based Power Distribution Design under Worst

Shayan Arani, Amirali

2011-01-01T23:59:59.000Z

85

INFLUENCE OF DESIGN AND OPERATING CONDITIONS ON UNDERFLOOR AIR DISTRIBUTION (UFAD) SYSTEM PERFORMANCE  

E-Print Network [OSTI]

Underfloor Air Distribution (UFAD) Design Guide. Atlanta:to design and operate underfloor air distribution (UFAD)DESIGN AND OPERATING CONDITIONS ON UNDERFLOOR AIR DISTRIBUTION (

2012-01-01T23:59:59.000Z

86

107-A load-current B-dot monitor: Simulations, design, and performance  

Science Journals Connector (OSTI)

A B-dot monitor that measures the current 6 cm from the axis of dynamic loads fielded on 107-A multiterawatt pulsed-power accelerators has been developed. The monitor improves upon the multimegampere load-current gauge described in Phys. Rev. ST Accel. Beams 11, 100401 (2008). The design of the improved monitor was developed using three-dimensional particle-in-cell simulations that model vacuum electron flow in the transmission line near the monitor. The simulations include important geometric features of the B-dot probe and model the deposition of electron energy within the probe. The simulations show that the improved design reduces by as much as a factor of 5 the electron energy deposition to the interior of the monitor. Data taken on accelerator shots demonstrate that the improved monitor works as well as the original monitor on shots with low-impedance loads, and delivers superior performance on higher-impedance-load shots.

D. V. Rose; D. R. Welch; C. L. Miller; R. E. Clark; E. A. Madrid; C. B. Mostrom; T. C. Wagoner; J. K. Moore; W. A. Stygar; J. E. Bailey; T. J. Nash; G. A. Rochau; D. B. Sinars

2010-04-21T23:59:59.000Z

87

An integrated optimal design method for utility power distribution systems.  

E-Print Network [OSTI]

??This dissertation presents a comprehensive and integrated design methodology to optimize both the electrical and the economic performance of a utility power distribution system. The… (more)

Fehr, Ralph E

2005-01-01T23:59:59.000Z

88

Causality and sensitivity analysis in distributed design simulation  

E-Print Network [OSTI]

Numerous collaborative design frameworks have been developed to accelerate the product development, and recently environments for building distributed simulations have been proposed. For example, a simulation framework ...

Kim, Jaehyun, 1970-

2002-01-01T23:59:59.000Z

89

Design of an advanced electric power distribution systems using seeker optimization algorithm  

Science Journals Connector (OSTI)

Abstract The power distribution network design problem has a growing impact on secure and economical operation of distribution power system. This issue is well known as a non-linear, multi-modal and multi-objective optimization problem where global optimization techniques are required in order to avoid local minima. In this study, a new approach using seeker optimization algorithm (SOA) is proposed for distribution system planning problem with simultaneous placement of automatic reclosers (RAs), considering total system economic cost, overall system reliability, system power losses and voltage deviations as an objective functions. Normally, conventional power distribution systems (CPDS) are radial in nature and momentary fault in the system causes large area of the grid to be blacked out, which leads to huge load interruptions. Reliable distribution system minimize this effect by allowing faults to clear themselves by protection device operations such as automatic reclosers (RAs) and quickly restores the power through system reconfiguration by minimizing the loads affected. Thus, in order to prevent the system from momentary faults, simultaneous placement of \\{RAs\\} has been also done which leads to a design of an advanced power distribution system (APDS). Thus, the reliability issues are of major importance for effective planning of an APDS. For evaluation of reliability measure, the contingency-load-loss index (CLLI) is assessed in this paper, which is independent of the failure rate and fault repair duration of the feeder branches. The performance of the proposed algorithm is extensively assessed and comparisons are made with Particle Swarm Optimization (PSOs), Genetic Algorithm (GA) and graph theoretical approach (GTA) applied on the 54 and 100-bus primary power distribution systems. The simulation results show that the proposed approach performed better than the other listed algorithms and can be efficiently used for the optimal design of an advanced power distribution system.

Deepak Kumar; S.R. Samantaray

2014-01-01T23:59:59.000Z

90

Cost Modeling and Design Techniques for Integrated Package Distribution Systems  

E-Print Network [OSTI]

Cost Modeling and Design Techniques for Integrated Package Distribution Systems Karen R. Smilowitz idealizations of network geometries, operating costs, demand and customer distributions, and routing patterns that approximate the total cost of operation. The design problem is then reduced to a series of optimization

Daganzo, Carlos F.

91

DESIGNING AN ECOLOGY OF DISTRIBUTED AGENTS Nelson Minar  

E-Print Network [OSTI]

DESIGNING AN ECOLOGY OF DISTRIBUTED AGENTS by Nelson Minar B.A. Mathematics (1994) Reed College, Departmental Committee on Graduate Students Program in Media Arts and Sciences #12; #12; DESIGNING AN ECOLOGY is an organizing principle for documents. This thesis introduces the idea of an ecology of distributed agents

92

Economical load distribution in power networks that include hybrid solar power plants  

Science Journals Connector (OSTI)

With respect to the growing share of renewable resources in secure provision of electrical energy, proper utilization of hybrid power plants is of great importance. Therefore, an optimal production planning for operation of these power plants is evidently necessary. Generally, economical load distribution refers to determination of an optimal point in production that fully provides for the total network load. In other words, the economical load distribution refers to cost minimization of the produced electrical power for satisfying the total network demand, with consideration of the actual constraints in the power system. To serve this purpose, several methods have been in use, but with the entry of power plants that use renewable energy resources, necessary steps should be taken to ensure their optimal use. However, economical optimization and sufficient reliability in serving concurrent demands are the two-fold objectives of the electrical power system and need to be considered simultaneously. Therefore, in analyzing the share of renewable energy resources in the total electrical power network, both their economical advantages and their reliable level of production should be considered. Presently, many countries show interest in using hybrid solar power plants and fossil fuel power plants. In this research, the problem of augmenting power networks with solar power plants and finding their optimal production point is dealt with. Some models for the production cost functions of these power plants are presented and discussed.

Mohammad Taghi Ameli; Saeid Moslehpour; Mehdi Shamlo

2008-01-01T23:59:59.000Z

93

Designing pricing strategies for coordination of networked distributed energy resources  

E-Print Network [OSTI]

simulations. Keywords: Power systems, distributed energy resources, energy market, distributed control, gameDesigning pricing strategies for coordination of networked distributed energy resources Bahman, Urbana-Champaign, USA, basar1@illinois.edu, aledan@illinois.edu. Abstract: We study the problem

Liberzon, Daniel

94

Nuclear Engineering and Design 189 (1999) 757 Lower head integrity under steam explosion loads  

E-Print Network [OSTI]

Nuclear Engineering and Design 189 (1999) 7­57 Lower head integrity under steam explosion loads T Engineering, Building 208, Argonne National Laboratory, 9700 South Cass A6enue, Argonne, IL 60439, USA Received 24 August 1998; accepted 24 November 1998 Abstract Lower head integrity under steam explosion

Yuen, Walter W.

95

Collaborative Engine for Distributed Mechanical Design  

E-Print Network [OSTI]

Effective collaboration is essential for engineers at geographically dispersed locations to accomplish good design with less iteration. Over the last several years, more and more efforts have been put into such research ...

Ni, Qianfu

96

A Computational Method for Determining Distributed Aerodynamic Loads on Planforms of Arbitrary Shape in Compressible Subsonic Flow  

E-Print Network [OSTI]

The methods presented in this work are intended to provided an easy to understand and easy to apply method for determining the distributed aerodynamic loads and aerodynamic characteristics of planforms of nearly arbitrary shape. Through application...

Brown, Matthew Alan

2013-12-31T23:59:59.000Z

97

Hybrid real-coded genetic algorithm for data partitioning in multi-round load distribution and scheduling in heterogeneous systems  

Science Journals Connector (OSTI)

Abstract Data partitioning and scheduling is one the important issues in minimizing the processing time for parallel and distributed computing system. We consider a single-level tree architecture of the system and the case of affine communication model, for a general m processor system with n rounds of load distribution. For this case, there exists an optimal activation order, optimal number of processors m* (m * ? m), and optimal rounds of load distribution n* (n * ? n), such that the processing time of the entire processing load is a minimum. This is a difficult optimization problem because for a given activation order, we have to first identify the processors that are participating (in the computation process) in every round of load distribution and then obtain the load fractions assigned to them, and the processing time. Hence, in this paper, we propose a real-coded genetic algorithm (RCGA) to solve the optimal activation order, optimal number of processors m* (m * ? m), and optimal rounds of load distribution n* (n * ? n), such that the processing time of the entire processing load is a minimum. RCGA employs a modified crossover and mutation operators such that the operators always produce a valid solution. Also, we propose different population initialization schemes to improve the convergence. Finally, we present a comparative study with simple real-coded genetic algorithm and particle swarm optimization to highlight the advantage of the proposed algorithm. The results clearly indicate the effectiveness of the proposed real-coded genetic algorithm.

S. Suresh; Hao Huang; H.J. Kim

2014-01-01T23:59:59.000Z

98

RTDS-Based Design and Simulation of Distributed P-Q Power Resources in Smart Grid  

E-Print Network [OSTI]

Smart Grid on distribution system design," in Proc. of thestorage system design for distribution network," in Proc. ofdesign can noticeably improve the operational performance of the power distribution

Taylor, Zachariah David

2014-01-01T23:59:59.000Z

99

Distributed design tools: Mapping targeted design tools onto a Web-based distributed architecture for high-performance computing  

SciTech Connect (OSTI)

Design Tools use a Web-based Java interface to guide a product designer through the design-to-analysis cycle for a specific, well-constrained design problem. When these Design Tools are mapped onto a Web-based distributed architecture for high-performance computing, the result is a family of Distributed Design Tools (DDTs). The software components that enable this mapping consist of a Task Sequencer, a generic Script Execution Service, and the storage of both data and metadata in an active, object-oriented database called the Product Database Operator (PDO). The benefits of DDTs include improved security, reliability, scalability (in both problem size and computing hardware), robustness, and reusability. In addition, access to the PDO unlocks its wide range of services for distributed components, such as lookup and launch capability, persistent shared memory for communication between cooperating services, state management, event notification, and archival of design-to-analysis session data.

Holmes, V.P.; Linebarger, J.M.; Miller, D.J.; Poore, C.A.

1999-11-30T23:59:59.000Z

100

Establishing robust short-term distributions of load extremes of offshore wind turbines  

Science Journals Connector (OSTI)

Abstract A novel method with a rigorous theoretical foundation is proposed for establishing robust short-term distributions of load extremes of offshore wind turbines. Based on the wind turbine load time series, the proposed method begins with incorporating a declustering algorithm into the peaks over threshold (POT) method and searching for an optimum threshold level with the aid of a Mean Residual Life (MRL) plot. Then, the method of L-moments is utilized to estimate the parameters in the generalized Pareto distribution (GPD) of the largest values in all the selected clusters over the optimal threshold level. As an example of calculation, an optimal threshold level of the tower base fore-aft extreme bending moments of the National Renewable Energy Laboratory (NREL) 5-MW OC3-Hywind floating wind turbine has been obtained by utilizing the novel method. The short-term extreme response probability plots based on this optimal threshold level are compared with the probability plots based on the empirical and semi-empirical threshold levels, and the accuracy and efficiency of the proposed novel method are substantiated. Diagnostic plots are also included in this paper for validating the accuracy of the proposed novel method. The method has been further validated in another calculation example regarding an NREL 5-MW fixed-bottom monopile wind turbine.

Yingguang Wang; Yiqing Xia; Xiaojun Liu

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distribution design load" 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

Analysis of design and part load performance of micro gas turbine/organic Rankine cycle combined systems  

Science Journals Connector (OSTI)

This study analyzes the design and part load performance of a power generation system combining a micro gas turbine (MGT) and an organic Rankine cycle (ORC). Design performances of cycles adopting several differe...

Joon Hee Lee; Tong Seop Kim

2006-09-01T23:59:59.000Z

102

DESIGNING AN ECOLOGY OF DISTRIBUTED AGENTS Master's Thesis Proposal  

E-Print Network [OSTI]

DESIGNING AN ECOLOGY OF DISTRIBUTED AGENTS Master's Thesis Proposal November 5, 1997 Revised Lab #12; #12; Contents 1 Introduction 1 1.1 Ecologies of Programs of Computational Ecologies . . . . . . . . . . . . . . . . . . . 7 1.5 Summary of Expected Contributions

103

On Assessing the Accuracy of Offshore Wind Turbine Reliability-Based Design Loads from the Environmental Contour Method  

E-Print Network [OSTI]

On Assessing the Accuracy of Offshore Wind Turbine Reliability-Based Design Loads from to derive design loads for an active stall-regulated offshore wind turbine. Two different Danish offshore contour method; wind turbine; offshore; reliability. INTRODUCTION Inverse reliability techniques

Manuel, Lance

104

Evenly distributed unitaries: on the structure of unitary designs  

E-Print Network [OSTI]

We clarify the mathematical structure underlying unitary $t$-designs. These are sets of unitary matrices, evenly distributed in the sense that the average of any $t$-th order polynomial over the design equals the average over the entire unitary group. We present a simple necessary and sufficient criterion for deciding if a set of matrices constitutes a design. Lower bounds for the number of elements of 2-designs are derived. We show how to turn mutually unbiased bases into approximate 2-designs whose cardinality is optimal in leading order. Designs of higher order are discussed and an example of a unitary 5-design is presented. We comment on the relation between unitary and spherical designs and outline methods for finding designs numerically or by searching character tables of finite groups. Further, we sketch connections to problems in linear optics and questions regarding typical entanglement.

D. Gross; K. Audenaert; J. Eisert

2007-05-13T23:59:59.000Z

105

Configuration Distribution and Designs of Codes in the Johnson Scheme  

E-Print Network [OSTI]

Configuration Distribution and Designs of Codes in the Johnson Scheme Tuvi Etzion Technion between perfect codes in the Johnson scheme and designs, and provide new tools for proving Delsarte conjecture that there are no nontrivial perfect codes in the Johnson scheme. Three topics will be considered

Etzion, Tuvi

106

Staff Technical Position on geological repository operations area underground facility design: Thermal loads  

SciTech Connect (OSTI)

The purpose of this Staff Technical Position (STP) is to provide the US Department of Energy (DOE) with a methodology acceptable to the Nuclear Regulatory Commission staff for demonstrating compliance with 10 CFR 60.133(i). The NRC staff`s position is that DOE should develop and use a defensible methodology to demonstrate the acceptability of a geologic repository operations area (GROA) underground facility design. The staff anticipates that this methodology will include evaluation and development of appropriately coupled models, to account for the thermal, mechanical, hydrological, and chemical processes that are induced by repository-generated thermal loads. With respect to 10 CFR 60.133(i), the GROA underground facility design: (1) should satisfy design goals/criteria initially selected, by considering the performance objectives; and (2) must satisfy the performance objectives 10 CFR 60.111, 60.112, and 60.113. The methodology in this STP suggests an iterative approach suitable for the underground facility design.

Nataraja, M.S. [Nuclear Regulatory Commission, Washington, DC (United States). Div. of High-Level Waste Management; Brandshaug, T. [Itasca Consulting Group, Inc., Minneapolis, MN (United States)

1992-12-01T23:59:59.000Z

107

Staff Technical Position on geological repository operations area underground facility design: Thermal loads  

SciTech Connect (OSTI)

The purpose of this Staff Technical Position (STP) is to provide the US Department of Energy (DOE) with a methodology acceptable to the Nuclear Regulatory Commission staff for demonstrating compliance with 10 CFR 60.133(i). The NRC staff's position is that DOE should develop and use a defensible methodology to demonstrate the acceptability of a geologic repository operations area (GROA) underground facility design. The staff anticipates that this methodology will include evaluation and development of appropriately coupled models, to account for the thermal, mechanical, hydrological, and chemical processes that are induced by repository-generated thermal loads. With respect to 10 CFR 60.133(i), the GROA underground facility design: (1) should satisfy design goals/criteria initially selected, by considering the performance objectives; and (2) must satisfy the performance objectives 10 CFR 60.111, 60.112, and 60.113. The methodology in this STP suggests an iterative approach suitable for the underground facility design.

Nataraja, M.S. (Nuclear Regulatory Commission, Washington, DC (United States). Div. of High-Level Waste Management); Brandshaug, T. (Itasca Consulting Group, Inc., Minneapolis, MN (United States))

1992-12-01T23:59:59.000Z

108

Dynamic Distributed Flow Scheduling with Load Balancing for Data Center Networks  

Science Journals Connector (OSTI)

Abstract Current Flow Scheduling techniques in Data Center Networks(DCN) results in overloaded or underutilized links. Static flow scheduling techniques such as ECMP and VLB use hashing techniques for scheduling the flows. In case of hash collision a path gets selected number of times resulting overloading of that path and underutilization of other paths. Dynamic flow scheduling techniques like global first fit employ centralized scheduler and always selects first fittest candidate path for scheduling. Thus in addition to single-point-of-failure the overall link uti- lization also remains a problem as the flows are not scheduled on the best available candidate path. This paper presents firstly a Dynamic Distributed Flow Scheduling(DDFS) mechanism that will lead to fair link utilization in globally used fat-tree topology of DCN. Secondly, it presents a mechanism to restrict the flow scheduling de- cisions to the lower layers thus avoiding saturation of core switches. The entire DCN is simulated using Colored Petri Nets (CPN). The load measured at the aggregate switches for various flow patterns in DCN reveals that the load factors at the aggregate switches vary by at most 0.11 which signifies the fair utilization of links.

Sourabh Bharti; K.K. Pattanaik

2013-01-01T23:59:59.000Z

109

Using ductwork to improve supply plenum temperature distribution in underfloor air distribution (UFAD) system  

E-Print Network [OSTI]

overhead air distribution design(1). 1.3 Thermal comfortS. Under Floor Air Distribution (UFAD) Design Guide. s.l. :load design tool for underfloor air distribution systems.

Pasut, Wilmer

2011-01-01T23:59:59.000Z

110

Design Considerations for RDamage Load Evolution or "Why We Built What We Built"  

SciTech Connect (OSTI)

The RDamage series of ten experiments is part of a long-term collaboration with RFNC/VNIIEF in pulsed power technology. These experiments use a cylindrical configuration to study spallation damage, which allows for a natural recollection of the damaged material under proper driving conditions and post-shot collection of the damaged target material for subsequent metallographic analysis. Dynamic in-situ experimental velocimetry diagnostics are also employed. LANL is responsible for the design of the experimental load and velocimetry system. VNIIEF is responsible for the design and construction of the driving explosive magnetic generator. In the RDamage-0, -1 and -2 experiments, data was collected about failure initiation of a well-characterized material (aluminum) in a cylindrical geometry. The RDamage-3, -4 and -5 experiments produced data on the behavior of material recollected after damage from pressures in the damage initiation regime. Data on the behavior of material recollected after complete failure was collected in the RDamage-6, -7, -8 and -9 experiments. This presentation shows the design choices behind the evolution of the load assembly through the experimental series.

Kaul, Ann [Los Alamos National Laboratory

2012-06-13T23:59:59.000Z

111

System level design of power distribution network for mobile computing platforms.  

E-Print Network [OSTI]

??Providing a reliable power distribution network (PDN) is a critical design challenge for mobile system on chip platforms. A well-designed power distribution network should be… (more)

Shayan Arani, Amirali

2011-01-01T23:59:59.000Z

112

RTDS-Based Design and Simulation of Distributed P-Q Power Resources in Smart Grid  

E-Print Network [OSTI]

in a distribution substation," IEEE Trans. on Power Systems,power peak load shaving at substation, reactive power peakload shaving at iv substation, and voltage regulation. We

Taylor, Zachariah David

2014-01-01T23:59:59.000Z

113

Advanced Strategy Guideline: Air Distribution Basics and Duct Design  

SciTech Connect (OSTI)

This report discusses considerations for designing an air distribution system for an energy efficient house that requires less air volume to condition the space. Considering the HVAC system early in the design process will allow adequate space for equipment and ductwork and can result in cost savings. Principles discussed that will maximize occupant comfort include delivery of the proper amount of conditioned air for appropriate temperature mixing and uniformity without drafts, minimization of system noise, the impacts of pressure loss, efficient return air duct design, and supply air outlet placement, as well as duct layout, materials, and sizing.

Burdick, A.

2011-12-01T23:59:59.000Z

114

Resilience-Based Design of Natural Gas Distribution Networks  

E-Print Network [OSTI]

Case Study Resilience-Based Design of Natural Gas Distribution Networks G. P. Cimellaro, Ph.D., A response to natural disasters. In this paper, a new performance index measuring the functionality of a gas; Disaster resilience; Vulnerability; Gas networks; Damage assessment; Lifelines; Serviceability; Natural gas

Bruneau, Michel

115

Simplified design and evaluation of liquid storage tanks relative to earthquake loading  

SciTech Connect (OSTI)

A summary of earthquake-induced damage in liquid storage tanks is provided. The general analysis steps for dynamic response of fluid-filled tanks subject to horizontal ground excitation are discussed. This work will provide major attention to the understanding of observed tank-failure modes. These modes are quite diverse in nature, but many of the commonly appearing patterns are believed to be shell buckling. A generalized and simple-to-apply shell loading will be developed using Fluegge shell theory. The input to this simplified analysis will be horizontal ground acceleration and tank shell form parameters. A dimensionless parameter will be developed and used in predictions of buckling resulting from earthquake-imposed loads. This prediction method will be applied to various tank designs that have failed during major earthquakes and during shaker table tests. Tanks that have not failed will also be reviewed. A simplified approach will be discussed for early design and evaluation of tank shell parameters and materials to provide a high confidence of low probability of failure during earthquakes.

Poole, A.B.

1994-06-01T23:59:59.000Z

116

Distributing many points on spheres: minimal energy and designs  

E-Print Network [OSTI]

This survey discusses recent developments in the context of spherical designs and minimal energy point configurations on spheres. The recent solution of the long standing problem of the existence of spherical $t$-designs on $\\mathbb{S}^d$ with $\\mathcal{O}(t^d)$ number of points by A. Bondarenko, D. Radchenko, and M. Viazovska attracted new interest to this subject. Secondly, D. P. Hardin and E. B. Saff proved that point sets minimising the discrete Riesz energy on $\\mathbb{S}^d$ in the hypersingular case are asymptotically uniformly distributed. Both results are of great relevance to the problem of describing the quality of point distributions on $\\mathbb{S}^d$, as well as finding point sets, which exhibit good distribution behaviour with respect to various quality measures.

Johann S. Brauchart; Peter J. Grabner

2014-07-31T23:59:59.000Z

117

Influence of raised floor on zone design cooling load in commercial buildings.  

E-Print Network [OSTI]

office”. The equipment loads follow the schedules of theload is 10.8 W/m 2 and it follows the load shown in Table 3.interior zone follows the internal heat load, i.e. people

Schiavon, Stefano; Lee, Kwang Ho; Bauman, Fred; Webster, Tom

2010-01-01T23:59:59.000Z

118

Arching in Distribution of Active Load on Retaining Walls Srinivasa S. Nadukuru, S.M.ASCE1  

E-Print Network [OSTI]

of Civil Engineers. CE Database subject headings: Arches; Retaining structures; Load distribution have a two- century history, but with no significant modifications these meth- ods are widely used the plastic state is assumed within the wedge). The outcome of the Coulomb solution is typically represented

Michalowski, Radoslaw L.

119

Design of an Experimental Facility for the Validation of Cooling Load Calculation Procedures.  

E-Print Network [OSTI]

??Two test cells were constructed to validate the ASHRAE cooling load calculation procedures developed under RP-875 and codified in the ASHRAE Loads Toolkit (RP987). The… (more)

Eldridge, David Stewart

2007-01-01T23:59:59.000Z

120

A Technique to Utilize Smart Meter Load Information for Adapting Overcurrent Protection for Radial Distribution Systems with Distributed Generations  

E-Print Network [OSTI]

overcurrent protection scheme to reduce the number of customers affected by faults in RDS with DGs. Further, a technique is presented that utilizes customers loading information from smart meters in AMI to improve the sensitivity of substation OC relays...

Ituzaro, Fred Agyekum

2012-07-16T23:59:59.000Z

Note: This page contains sample records for the topic "distribution design load" 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

Goh et al. Reply: We introduced in a recent Letter [1] the load distribution following a power law on scale-free (SF)  

E-Print Network [OSTI]

Goh et al. Reply: We introduced in a recent Letter [1] the load distribution following a power law on scale-free (SF) networks. In addition, it was conjectured that the load exponent is universal as long. In this Reply, we notice that the discrepancy is mainly caused by different usages of definition of load in [1

Kim, Doochul

122

Goh et al. Reply: We introduced in a recent Letter [1] the load distribution following a power law on scalefree (SF) net  

E-Print Network [OSTI]

Goh et al. Reply: We introduced in a recent Letter [1] the load distribution following a power law on scale­free (SF) net­ works. In addition, it was conjectured that the load exponent d is universal. In this reply, we notice that the discrepancy is mainly caused by different usages of definition of load in [1

Kahng, Byungnam

123

Rock Joint Surfaces Measurement and Analysis of Aperture Distribution under Different Normal and Shear Loading Using GIS  

E-Print Network [OSTI]

Geometry of the rock joint is a governing factor for joint mechanical and hydraulic behavior. A new method of evaluating aperture distribution based on measurement of joint surfaces and three dimensional characteristics of each surface is developed. Artificial joint of granite surfaces are measured,processed, analyzed and three dimensional approaches are carried out for surface characterization. Parameters such as asperity's heights, slope angles, and aspects distribution at micro scale,local concentration of elements and their spatial localization at local scale are determined by Geographic Information System (GIS). Changes of aperture distribution at different normal stresses and various shear displacements are visualized and interpreted. Increasing normal load causes negative changes in aperture frequency distribution which indicates high joint matching. However, increasing shear displacement causes a rapid increase in the aperture and positive changes in the aperture frequency distribution which could be ...

Sharifzadeh, Mostafa; Esaki, Tetsuro

2009-01-01T23:59:59.000Z

124

A Computational Market Model for Distributed Configuration Design Michael P. Wellman  

E-Print Network [OSTI]

of distributed configuration design problems. Given a design problem, the model defines a computational economy viewpoint for analyzing distributed design problems. #12;This page intentionally blank #12. Computational support for distributed design collaboration presents a variety of new challenges (Cutkosky et al

Wellman, Michael P.

125

Introducing Flexible Quantity Contracts into Distributed SoC and Embedded System Design Processes  

E-Print Network [OSTI]

Introducing Flexible Quantity Contracts into Distributed SoC and Embedded System Design Processes and flexible contracts regulate cooperation and cost distribution. The process ef- fectively delays the design a distributed design process. Today we already find dis- tributed design processes in automotive engineering

Paris-Sud XI, Université de

126

Building Design Services in a Distributed Service Architecture Charles S. Han1  

E-Print Network [OSTI]

Building Design Services in a Distributed Service Architecture Charles S. Han1 , John C. Kunz2 design services over the Internet. The benefits of the framework for distributed design services are at least twofold. First, the framework provides a means to distribute design services in a modular

Stanford University

127

Distributed control for reconfigurable FPGA systems: a high-level design approach  

E-Print Network [OSTI]

Distributed control for reconfigurable FPGA systems: a high-level design approach Chiraz Trabelsi to increase design productivity. This approach combines control distribution and high-level modeling in order to decrease design complexity and enhance design reuse and scalability. Control distribution is based

Paris-Sud XI, Université de

128

A Parallel Tree code for large Nbody simulation: dynamic load balance and data distribution on CRAY T3D system  

E-Print Network [OSTI]

N-body algorithms for long-range unscreened interactions like gravity belong to a class of highly irregular problems whose optimal solution is a challenging task for present-day massively parallel computers. In this paper we describe a strategy for optimal memory and work distribution which we have applied to our parallel implementation of the Barnes & Hut (1986) recursive tree scheme on a Cray T3D using the CRAFT programming environment. We have performed a series of tests to find an " optimal data distribution " in the T3D memory, and to identify a strategy for the " Dynamic Load Balance " in order to obtain good performances when running large simulations (more than 10 million particles). The results of tests show that the step duration depends on two main factors: the data locality and the T3D network contention. Increasing data locality we are able to minimize the step duration if the closest bodies (direct interaction) tend to be located in the same PE local memory (contiguous block subdivison, high granularity), whereas the tree properties have a fine grain distribution. In a very large simulation, due to network contention, an unbalanced load arises. To remedy this we have devised an automatic work redistribution mechanism which provided a good Dynamic Load Balance at the price of an insignificant overhead.

U. Becciani; R. Ansaloni; V. Antonuccio-Delogu; G. Erbacci; M. Gambera; A. Pagliaro; -

1997-09-02T23:59:59.000Z

129

Development of load and resistance factor design for FRP strengthening of reinforced concrete structures  

E-Print Network [OSTI]

the one-year distribution and the reliability technique116 Summary of Distributions for Reliabilityand select the best distribution for reliability analysis.

Atadero, Rebecca Anne

2006-01-01T23:59:59.000Z

130

Load Data and Load Vector Assembly  

Science Journals Connector (OSTI)

Data for loading cases in solid mechanics problems is described. The following external loading factors can be specified: concentrated nodal forces, distributed surface forces, and thermal loading. JavaTM class F...

2010-01-01T23:59:59.000Z

131

CFD-based design load analysis of 5MW offshore wind turbine  

Science Journals Connector (OSTI)

The structure and aerodynamic loads acting on NREL 5MW reference wind turbine blade are calculated and analyzed based on advanced Computational Fluid Dynamics (CFD) and unsteady Blade Element Momentum (BEM). A detailed examination of the six force components has been carried out (three force components and three moment components). Structure load (gravity and inertia load) and aerodynamic load have been obtained by additional structural calculations (CFD or BEM respectively ). In CFD method the Reynolds Average Navier-Stokes approach was applied to solve the continuity equation of mass conservation and momentum balance so that the complex flow around wind turbines was modeled. Written in C programming language a User Defined Function (UDF) code which defines transient velocity profile according to the Extreme Operating Gust condition was compiled into commercial FLUENT package. Furthermore the unsteady BEM with 3D stall model has also adopted to investigate load components on wind turbine rotor. The present study introduces a comparison between advanced CFD and unsteady BEM for determining load on wind turbine rotor. Results indicate that there are good agreements between both present methods. It is importantly shown that six load components on wind turbine rotor is significant effect under Extreme Operating Gust (EOG) condition. Using advanced CFD and additional structural calculations this study has succeeded to construct accuracy numerical methodology to estimate total load of wind turbine that compose of aerodynamic load and structure load.

T. T. Tran; G. J. Ryu; Y. H. Kim; D. H. Kim

2012-01-01T23:59:59.000Z

132

A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System  

E-Print Network [OSTI]

A Better Steam Engine: Designing a Distributed Concentrating2011 Abstract A Better Steam Engine: Designing a Distributedprovided for a steam Rankine cycle heat engine achieving 50%

Norwood, Zachary Mills

2011-01-01T23:59:59.000Z

133

Development of load and resistance factor design for FRP strengthening of reinforced concrete structures  

E-Print Network [OSTI]

variation in loads and material resistances, while in factthe different resistance factors, materials, FRP degradationfactors on resistance to consider material uncertainty after

Atadero, Rebecca Anne

2006-01-01T23:59:59.000Z

134

Distributed XML Repositories: Top-down Design and Transparent Query Processing  

E-Print Network [OSTI]

Distributed XML Repositories: Top-down Design and Transparent Query Processing Michael Gertz Jan over the Web. However, design and query processing models for distributed XML data have not yet been studied in detail. The goal of this paper is to study the design and management of distributed XML

Gertz, Michael

135

American Institute of Aeronautics and Astronautics Development of a Distributed Design Toolkit for Analyzing  

E-Print Network [OSTI]

American Institute of Aeronautics and Astronautics 1 Development of a Distributed Design Toolkit - SUNY, Buffalo, NY, 14260 The distribution of a complex system design problem into smaller, coupled a toolkit that enables the modeling and analysis of distributed design process architectures using basic

Lewis, Kemper E.

136

Interaction systems design and the protocol-and middleware-centred paradigms in distributed application development  

E-Print Network [OSTI]

Interaction systems design and the protocol- and middleware-centred paradigms in distributed the benefits and importance of interaction systems design in the development of distributed applications. We in the development of distributed applications. Typical design methods based on the re-use of middleware platforms

van Sinderen, Marten

137

A Simple Toy Example of a Distributed System: On the Design of a Connecting Switch  

E-Print Network [OSTI]

A Simple Toy Example of a Distributed System: On the Design of a Connecting Switch Thomas F Munchen 2 (Germany) Abstract In this paper the development life-cycle of a design method for distributed the design method more transparent. 1. Introduction A distributed system consists of a family of components

138

DESIGN AND EVALUATION OF A SAMPLER FOR MEASURING THE NEAR-BOTTOM VERTICAL DISTRIBUTION OF  

E-Print Network [OSTI]

DESIGN AND EVALUATION OF A SAMPLER FOR MEASURING THE NEAR-BOTTOM VERTICAL DISTRIBUTION OF PINK distribution of shrimp was considered essential to the design of an effective shrimp trawl since the vertical. Subsequently a multipurpose shrimp sampler was designed to facilitate investigation of shrimp distributions

139

Advanced Design of Broadband Distributed Amplifier using a SiGe BiCMOS Technology  

E-Print Network [OSTI]

Advanced Design of Broadband Distributed Amplifier using a SiGe BiCMOS Technology Gye-An Lee distributed amplifier for optical communication applications using SiGe BiCMOS technology. The design of some techniques are needed at such high frequencies. Main obstacles in the design of a silicon- based distributed

De Flaviis, Franco

140

Physical Design for Reduced Delay Uncertainty in High Performance Clock Distribution Networks  

E-Print Network [OSTI]

531 Physical Design for Reduced Delay Uncertainty in High Performance Clock Distribution Networks, the design of a clock distribution network represents one of the most challenging tasks in the integrated in the design of a high performance clock distribution network [1]. The uncertainty of the clock signal delay

Friedman, Eby G.

Note: This page contains sample records for the topic "distribution design load" 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

The Quasi-Distributed Gap Technique for Planar Inductors-Design Guidelines  

E-Print Network [OSTI]

The Quasi-Distributed Gap Technique for Planar Inductors-Design Guidelines Jiankun Hu C. R The Quasi-Distributed Gap Technique for Planar Inductors: Design Guidelines Jiankun Hu Charles R. Sullivan of low-permeability magnetic material to form a uniformly distributed gap can facilitate the design

142

Analysis and Design of Silicon Bipolar Distributed Oscillators Ali Hajimiri and Hui Wu  

E-Print Network [OSTI]

Analysis and Design of Silicon Bipolar Distributed Oscillators Ali Hajimiri and Hui Wu Abstract, the design and modeling of the coplanar transmission lines for a 12 GHz distributed oscillator results for the 12 GHz distrib- uted VCO and a 17 GHz distributed oscillator will be given. Design of DVCO

Hajimiri, Ali

143

Adjoint-based method for supersonic aircraft design using equivalent area distributions  

E-Print Network [OSTI]

Adjoint-based method for supersonic aircraft design using equivalent area distributions Francisco for the design of supersonic aircraft that must match a target equivalent area distribution at constant lift of an adjoint solver for the equivalent area distribution, and the shape design process of a trijet supersonic

Alonso, Juan J.

144

Field Trial of a Low-Cost, Distributed Plug Load Monitoring System  

SciTech Connect (OSTI)

Researchers have struggled to inventory and characterize the energy use profiles of the ever-growing category of so-called miscellaneous electric loads (MELs) because plug-load monitoring is cost-prohibitive to the researcher and intrusive to the homeowner. However, these data represent a crucial missing link to our understanding of how homes use energy, and we cannot control what we do not understand. Detailed energy use profiles would enable the nascent automated home energy management (AHEM) industry to develop effective control algorithms that target consumer electronics and other plug loads. If utility and other efficiency programs are to incent AHEM devices, they need large-scale datasets that provide statistically meaningful justification of their investments by quantifying the aggregate energy savings achievable. To address this need, we have investigated a variety of plug-load measuring devices available commercially and tested them in the laboratory to identify the most promising candidates for field applications. The scope of this report centers around the lessons learned from a field validation of one proof-of-concept system, called Smartenit (formerly SimpleHomeNet). The system was evaluated based on the rate of successful data queries, reliability over a period of days to weeks, and accuracy. This system offers good overall performance when deployed with up to ten end nodes in a residential environment, although deployment with more nodes and in a commercial environment is much less robust. We conclude that the current system is useful in selected field research projects, with the recommendation that system behavior is observed over time.

Auchter, B.; Cautley, D.; Ahl, D.; Earle, L.; Jin, X.

2014-03-01T23:59:59.000Z

145

Options for improving the load matching capability of distributed photovoltaics: Methodology and application to high-latitude data  

SciTech Connect (OSTI)

At high latitudes, domestic electricity demand and insolation are negatively correlated on both an annual and a diurnal basis. With increasing integration of distributed photovoltaics (PV) in low-voltage distribution grids of residential areas, limits to the penetration level are set by voltage rise due to unmatched production and load. In this paper a methodology for determining the impacts of three options for increased load matching is presented and applied to high-latitude data. The studied options are PV array orientation, demand side management (DSM) and electricity storage. Detailed models for domestic electricity demand and PV output are used. An optimisation approach is applied to find an optimal distribution of PV systems on different array orientations and a best-case evaluation of DSM and a storage model are implemented. At high penetration levels, storage is the most efficient option for maximising the solar fraction, but at lower overproduction levels, the impact of DSM is equal or slightly better. An east-west orientation of PV arrays is suggested for high penetration levels, but the effect of the optimised orientation is small. Without an optimised storage operation, the overproduced power is more efficiently reduced by DSM than storage, although this is highly dependent on the applied DSM algorithm. Further research should be focused on the DSM potential and optimal operation of storage. (author)

Widen, Joakim; Waeckelgaard, Ewa [Department of Engineering Sciences, The Aangstroem Laboratory, Uppsala University, P.O. Box 534, SE-751 21 Uppsala (Sweden); Lund, Peter D. [Advanced Energy Systems, Helsinki University of Technology, P.O. Box 2200, FI-02015 HUT, Helsinki (Finland)

2009-11-15T23:59:59.000Z

146

Characterizing probability density distributions for household electricity load profiles from high-resolution electricity use data  

Science Journals Connector (OSTI)

Abstract This paper presents a high-resolution bottom-up model of electricity use in an average household based on fit to probability distributions of a comprehensive high-resolution household electricity use data set for detached houses in Sweden. The distributions used in this paper are the Weibull distribution and the Log-Normal distribution. These fitted distributions are analyzed in terms of relative variation estimates of electricity use and standard deviation. It is concluded that the distributions have a reasonable overall goodness of fit both in terms of electricity use and standard deviation. A Kolmogorov–Smirnov test of goodness of fit is also provided. In addition to this, the model is extended to multiple households via convolution of individual electricity use profiles. With the use of the central limit theorem this is analytically extended to the general case of a large number of households. Finally a brief comparison with other models of probability distributions is made along with a discussion regarding the model and its applicability.

Joakim Munkhammar; Jesper Rydén; Joakim Widén

2014-01-01T23:59:59.000Z

147

Finite element analysis and design of large diameter flexible vertical pipes subjected to incremental compacted backfill loads and creep effects  

E-Print Network [OSTI]

FINITE ELEMENT ANALYSIS AND DESiGN OF LARGE DIANETER FLEXIBLE VERTICAL PIPES SUBJECTED TO INCREMENTAL COMPACTED BACKFILL LOADS AND CREEP EFFECTS A Thesis by MOHAMMAD KABIR HOSSAIN Submitted to the Office of Graduate Studies of Texas A... BACKFILL LOADS AND CREEP EFFECTS A Thesis by MOHAMMAD KABIR HOSSAIN Approved as to sty1e and content by: R be+r L. Lytton (Chair of Committee) Ozden 0. Ochoa (Member) Derek V. Morris (Member) ames T P Yao (Head of rtment) ABSTRACT Finite...

Hossain, Mohammad Kabir

2012-06-07T23:59:59.000Z

148

A hybrid method combining JFPSO and probabilistic three-phase load flow for improving unbalanced voltages in distribution systems with photovoltaic generators  

Science Journals Connector (OSTI)

This paper presents a new hybrid method that combines jumping frog and particle swarm optimization and probabilistic three-phase load flow to improve unbalanced voltages in distribution systems with photovoltaic

F. J. Ruiz-Rodriguez; F. Jurado; M. Gomez-Gonzalez

2014-09-01T23:59:59.000Z

149

Community Energy: Analysis of Hydrogen Distributed Energy Systems with Photovoltaics for Load Leveling and Vehicle Refueling  

SciTech Connect (OSTI)

Energy storage could complement PV electricity generation at the community level. Because PV generation is intermittent, strategies must be implemented to integrate it into the electricity system. Hydrogen and fuel cell technologies offer possible PV integration strategies, including the community-level approaches analyzed in this report: (1) using hydrogen production, storage, and reconversion to electricity to level PV generation and grid loads (reconversion scenario); (2) using hydrogen production and storage to capture peak PV generation and refuel hydrogen fuel cell electric vehicles (FCEVs) (hydrogen fueling scenario); and (3) a comparison scenario using a battery system to store electricity for EV nighttime charging (electric charging scenario).

Steward, D.; Zuboy, J.

2014-10-01T23:59:59.000Z

150

Application of Distribution Transformer Thermal Life Models to Electrified Vehicle Charging Loads Using Monte-Carlo Method: Preprint  

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

Application of Distribution Application of Distribution Transformer Thermal Life Models to Electrified Vehicle Charging Loads Using Monte-Carlo Method Preprint Michael Kuss, Tony Markel, and William Kramer Presented at the 25th World Battery, Hybrid and Fuel Cell Electric Vehicle Symposium & Exhibition Shenzhen, China November 5 - 9, 2010 Conference Paper NREL/CP-5400-48827 January 2011 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (Alliance), a contractor of the US Government under Contract No. DE-AC36-08GO28308. Accordingly, the US Government and Alliance retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes.

151

Gain-scheduled controller design for load-following in static space nuclear power systems  

E-Print Network [OSTI]

of variations in the fuel temperature reactivity feedback coeficient on the load-following capabilities of the SNPS. Robustness analysis results of the gain-scheduled compensator demonstrate that the proposed control concept exhibits a significant degree...

Onbasioglu, Fetiye Ozlem

1993-01-01T23:59:59.000Z

152

The design, fabrication and maintenance of semi-trailers employed in the highway transport of weight-concentrated radioactive loads  

SciTech Connect (OSTI)

Transportation of weight-concentrated radioactive loads by truck is an essential part of a safe and economical nuclear industry. This proposed standard presents guidance and performance criteria for the safe transport of these weight-concentrated radioactive loads. ANSI N14.30 will detail specific requirements for the design, fabrication, testing, in-service inspections, maintenance and certification of the semi-trailers to be employed in said service. Furthermore, guidelines for a quality assurance program are also enumerated. This standard would apply to any semi-trailer that may or may not be specifically designed to carry weight-concentrated loads. Equipment not suitable per the criteria established in the standard would be removed from service. The nature of the nuclear industry and the need for a positive public perception of the various processes and players, mandates that the highway transportation of weight-concentrated radioactive loads be standardized and made inherently safe. This proposed standard takes a giant step in that direction.

Huffman, D.S. [Allied-Signal Inc., Metropolis, IL (United States)

1991-12-31T23:59:59.000Z

153

Voltage Oscillations in Power Distribution Networks in the Presence of DFIGs and Induction Motor Loads  

E-Print Network [OSTI]

energy sources, wind power has proven to be one of the most successful sources offering relatively high-speed operation of wind tur- bines with frequency converters offers certain advantages [2]: mechanical stress penetration of wind power in traditional passive distribution networks requires detailed analysis to ensure

Pota, Himanshu Roy

154

A Study of Distributed Generation System Characteristics and Protective Load Control Strategy  

E-Print Network [OSTI]

turbines: Doubly-fed Induction Generator (DFIG) and Fixed-speed Wind Turbine (FSWT) are compared), Distributed Generation System (DGS), Doubly- fed Induction Generator (DFIG), Fixed-speed Wind Turbine (FSWT (FSWT) and doubly-fed induction generator wind turbine (DFIG) have different characteristics, when

Chen, Zhe

155

Distributed Internet-based Load Altering Attacks against Smart Power Grids  

E-Print Network [OSTI]

to cause circuite overflow or other malfunctions and damage the power system equipments. To gain insights-intrusion attempt may target any sector in a power system: generation, distribution and control, and consumption as shown in Fig. 1. A Type I cyber-attack targets power plants and aims in disrupting or taking over

Mohsenian-Rad, Hamed

156

The design of a distributed image processing and dissemination system  

SciTech Connect (OSTI)

The design and implementation of a distributed image processing and dissemination system was undertaken and accomplished as part of a prototype communication and intelligence (CI) system, the contingency support system (CSS), which is intended to support contingency operations of the Tactical Air Command. The system consists of six (6) Sun 3/180C workstations with integrated ITEX image processors and three (3) 3/50 diskless workstations located at four (4) system nodes (INEL, base, and mobiles). All 3/180C workstations are capable of image system server functions where as the 3/50s are image system clients only. Distribution is accomplished via both local and wide area networks using standard Defense Data Network (DDN) protocols (i.e., TCP/IP, et al.) and Defense Satellite Communication Systems (DSCS) compatible SHF Transportable Satellite Earth Terminals (TSET). Image applications utilize Sun's Remote Procedure Call (RPC) to facilitate the image system client and server relationships. The system provides functions to acquire, display, annotate, process, transfer, and manage images via an icon, panel, and menu oriented Sunview{trademark} based user interface. Image spatial resolution is 512 {times} 480 with 8-bits/pixel black and white and 12/24 bits/pixel color depending on system configuration. Compression is used during various image display and transmission functions to reduce the dynamic range of image data of 12/6/3/2 bits/pixel depending on the application. Image acquisition is accomplished in real-time or near-real-time by special purpose Itex image hardware. As a result all image displays are highly interactive with attention given to subsecond response time. 3 refs., 7 figs.

Rafferty, P.; Hower, L.

1990-01-01T23:59:59.000Z

157

A Design Model for Open Distributed Processing Systems Marten van Sinderen1  

E-Print Network [OSTI]

A Design Model for Open Distributed Processing Systems Marten van Sinderen1 , Luís Ferreira Pires1 these standards and consequently may decrease their price. The design and implementation of a distributed system, pires, vissers, katoen}@cs.utwente.nl Abstract This paper proposes design concepts that allow

van Sinderen, Marten

158

A Design Model for Open Distributed Processing Systems Marten van Sinderen1  

E-Print Network [OSTI]

A Design Model for Open Distributed Processing Systems Marten van Sinderen1 , Luís Ferreira Pires1 and consequently may decrease their price. The design and implementation of a distributed system is a complex, pires, vissers, katoen}@cs.utwente.nl Abstract This paper proposes design concepts that allow

Pires, Luís Ferreira

159

PHYSICAL DESIGN TRADEOFFS IN POWER DISTRIBUTION NETWORKS FOR 3-D ICs  

E-Print Network [OSTI]

PHYSICAL DESIGN TRADEOFFS IN POWER DISTRIBUTION NETWORKS FOR 3-D ICs Ioannis Tsioutsios, Vasilis F the tradeoffs among the different interconnects resources in the design process of 3- D power distribution.tsioutsios, vasileios.pavlidis, giovanni.demicheli}@epfl.ch Abstract--A physical model for the design of the power

De Micheli, Giovanni

160

Comparison of Design Loads for Turbines in Wake Torben J. Larsen, Helge Aa. Madsen, Gunner Larsen  

E-Print Network [OSTI]

DWM model Wind turbine wake velocity deficit wake meandering aeroelastic simulations wake added #12;Influence from wind direction: Driving torque #12;Influence from wind direction: Tower bottom tilt the turbine never experiences free flow direction at 3D spacing. · Tower loads increase with increased row

Note: This page contains sample records for the topic "distribution design load" 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

An objective approach for selecting ice or wet–snow design loads on transmission lines  

Science Journals Connector (OSTI)

...assessing iceloads for a transmission-line route in southern Norway...wet-snow loads along a transmission-line route, it will be useful...Figure 9. The 420 kV transmission line from Kristiansand to Holen. The nal route follows the alternatives...

2000-01-01T23:59:59.000Z

162

WaveDyn: A Design Tool for Performance & Operational Loads Modeling of WECs  

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

Experience with Validating MHK Tools Experience with Validating MHK Tools National Renewable Energy Laboratory - Broomfield, CO - July 9 th 2012 Contents * Overview of GL Garrad Hassan * List of Tools/Core Expertise: Dedicated Software * Waves: Resource assessment and site data analysis * WaveDyn: WEC performance and loads calculation (time-domain) * WaveFarmer: Planning and optimization of a WEC array * Tides: Resource assessment and site data analysis * Tidal Bladed: Tidal Turbine performance and loads calculation (time-domain) * TidalFarmer: Planning and optimization of a tidal turbine array * Validation Experience * Tidal Bladed * ReDAPT * PerAWaT * WaveDyn Who are GL Garrad Hassan? * Industry-leading independent renewable energy consultancy * Established in 1984 * Over 950 full time staff, in 42 locations, across 24 countries worldwide

163

Designing LED array for uniform illumination distribution by simulated annealing algorithm  

Science Journals Connector (OSTI)

We propose a numerical optimization method designing LED array for achieving a good uniform illumination distribution on target plane. Simulated annealing algorithm is employed to...

Su, Zhouping; Xue, Donglin; Ji, Zhicheng

2012-01-01T23:59:59.000Z

164

Design and Modeling of Centralized Distribution Network for the DC House Project.  

E-Print Network [OSTI]

?? This thesis focuses on the design, modeling, simulation, and performance evaluation of Centralized Distribution Network for the DC House Project. Power System Computer Aided… (more)

Bassi, Harpreet S.

2013-01-01T23:59:59.000Z

165

Design and performance relationships for cable distribution in multi-story office buildings.  

E-Print Network [OSTI]

??Weaknesses associated with cable distribution systems suggest a lack of design consideration in the planning stage of a building. The primary question to be addressed… (more)

Ryan, Richard Cecil

2012-01-01T23:59:59.000Z

166

The design and implementation of a distributed hierarchy for overcurrent protection and monitoring of a power distribution system  

E-Print Network [OSTI]

be made locally. Since most distribution substations are unmanned, this requires a special service trip by a meter reading crew. Thus, this information is not immediately available to system operators who must constantly determine the most efficient... interface would allow substation personnel to monitor the feeder load currents and to verify the system's response to disturbances on the feeder. An external communication link would also provide all of this information to a remote operator...

Zeigler, John Charles

2012-06-07T23:59:59.000Z

167

VOLUME 87, NUMBER 27 P H Y S I C A L R E V I E W L E T T E R S 31 DECEMBER 2001 Universal Behavior of Load Distribution in Scale-Free Networks  

E-Print Network [OSTI]

follows a power law with the exponent g. Load, or "betweenness centrality," of a vertex is the accumulated a data packet along the shortest path connecting the pair. It is found that the load distribution follows of Load Distribution in Scale-Free Networks K.-I. Goh, B. Kahng, and D. Kim School of Physics and Center

Kim, Doochul

168

Development of load and resistance factor design for FRP strengthening of reinforced concrete structures  

E-Print Network [OSTI]

1999). Relating an acceptable risk of structural failure toAcceptable Levels of Risk.design can hold the risk to acceptable levels by accounting

Atadero, Rebecca Anne

2006-01-01T23:59:59.000Z

169

Optimisation of distribution network design using a hybrid genetic algorithm.  

E-Print Network [OSTI]

??This thesis presents an integrated methodology developed for the modelling and optimisation of distribution networks based on a Hybrid Genetic Algorithm. This work focuses on… (more)

Akararungruangkul, Raknoi

2006-01-01T23:59:59.000Z

170

Using Simulation Models for District Chilled Water Distribution Systems Design  

E-Print Network [OSTI]

the design. The focus of this paper is to demonstrate how the using of the computerized simulation model can give the engineer the ability to explore many more alternative design scenarios and to identify more cost-effective and robust designs. The University...

Chen, Q.; Xu, C.; Deng, S.; Claridge, D. E.; Turner, W. D.

2004-01-01T23:59:59.000Z

171

Assessment and Improvements of the CBE Underfloor Air Distribution (UFAD) Cooling Load Design Tool  

E-Print Network [OSTI]

micro-encapsulated phase change materials to reduce buildingsave energy. The phase change materials within the EcoCore

Chen, Bin

2014-01-01T23:59:59.000Z

172

Assessment and Improvements of the CBE Underfloor Air Distribution (UFAD) Cooling Load Design Tool  

E-Print Network [OSTI]

Performances on indoor air quality and energy consumption incomfort, indoor air quality and energy performance. 1.1.1.better indoor air quality and energy efficiency, as well as

Chen, Bin

2014-01-01T23:59:59.000Z

173

Assessment and Improvements of the CBE Underfloor Air Distribution (UFAD) Cooling Load Design Tool  

E-Print Network [OSTI]

diffusers and underfloor fan coil units. .. 53 Figure 33 Thediffusers and underfloor fan coil units. Table 14 shows the

Chen, Bin

2014-01-01T23:59:59.000Z

174

Simplified calculation method for design cooling loads in underfloor air distribution (UFAD) systems  

E-Print Network [OSTI]

the outlet side of fan coil units (FCU) served by variableunit (AHU) including a return air economizer, chilled water cooling coil, hot water heating coil and supply fan.

Schiavon, Stefano; Lee, Kwang Ho; Bauman, Fred; Webster, Tom

2010-01-01T23:59:59.000Z

175

Design, development and deployment of public service photovoltaic power/load systems for the Gabonese Republic. Final report  

SciTech Connect (OSTI)

Five different types of public service photovoltaic power/load systems installed in the Gabonese Republic are discussed. The village settings, the systems, performance results and some problems encountered are described. Most of the systems performed well, but some of the systems had problems due to failure of components or installation errors. The project was reasonably successful in collecting and reporting data for system performance evaluation that will be useful for guiding officials and system designers involved in village power applications in developing countries.

Kaszeta, W.J.

1987-04-01T23:59:59.000Z

176

Economics of design and operation of overhead electric distribution systems  

E-Print Network [OSTI]

failures where bare conductors have been used, than on lines under the same operating conditions built of weather-proof conductor. k9 The area of the conductor exoosed to viind and ice, loading nas been re- duced by, omitting the insulation without... ? dead end, galvanized, zith cotter key. This clevis must, fit both $506 and O. B. X. H. strain insulators under 10, 000 pound tension. 19. Connectors ? 3 ? bolt, solderless, bronze clamp. 20. Connectors ? aluminum, 2" clamp. 21. Ground rods...

Cox, Carl Clarence

2012-06-07T23:59:59.000Z

177

A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System  

E-Print Network [OSTI]

A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System Combined Heat and Power System by Zachary Mills Norwood Doctor of Philosophy in the Energy and Resources of analysis of Distributed Concentrating Solar Combined Heat and Power (DCS-CHP) systems is a design

California at Berkeley, University of

178

Introduction to Focus Issue: Design and Control of Self-Organization in Distributed Active Systems  

E-Print Network [OSTI]

Introduction to Focus Issue: Design and Control of Self-Organization in Distributed Active Systems; published online 27 June 2008 Spatiotemporal self-organization is found in a wide range of distributed describe biological and chemical systems designed to exhibit spatiotemporal dynamics and the control

Showalter, Kenneth

179

Resilient Workflows for Cooperative Design Application of Distributed High-Performance Scientific Computing  

E-Print Network [OSTI]

Resilient Workflows for Cooperative Design Application of Distributed High-Performance Scientific-Antoine.Desideri@sophia.inria.fr Abstract--This paper describes an approach to extend process modeling for engineering design applications the traditional fault-tolerance management features provided by the existing hardware and distributed systems

Paris-Sud XI, Université de

180

The Design of a New Freight Distribution System in Venice1  

E-Print Network [OSTI]

1 The Design of a New Freight Distribution System in Venice1 Flavio Baita, Carlos Daganzo, Walter the transshipment operations from trucks to boats, and the organization of the boat distribution. Currently. Introduction The role of distribution logistics, as a strategic factor for competitive advantage in many

Daganzo, Carlos F.

Note: This page contains sample records for the topic "distribution design load" 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

Design of Robust Distribution Networks Run by fourth Party Logistics Service Providers  

E-Print Network [OSTI]

Design of Robust Distribution Networks Run by fourth Party Logistics Service Providers M logistics service provider (LSP), who faces the problem of distributing different products from suppliers distributions. 1 Introduction The logistics networks considered in this paper consist of production facilities

Armbruster, Dieter

182

Distributed embedded computing systems are special-purpose computer systems designed for particular applications and set up in a networked or distributed manner. A  

E-Print Network [OSTI]

ABSTRACT Distributed embedded computing systems are special-purpose computer systems designed). Therefore, this thesis presents a design methodology for distributing DSP applica- tions across wireless-power, application-specific sensor node platform for distributed WSN sys- tems is designed and demonstrated

Bhattacharyya, Shuvra S.

183

Scalable, probabilistic simulation in a distributed design environment  

E-Print Network [OSTI]

Integrated simulations have been used to predict and analyze the integrated behavior of large, complex product and technology systems throughout their design cycles. During the process of integration, uncertainties arise ...

Mao, Wei, Ph. D. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

184

A real-time routing protocol with mobility support and load distribution for mobile wireless sensor networks  

Science Journals Connector (OSTI)

Mobile wireless sensor network (MWSN) is a wireless ad hoc network that consists of a very large number of tiny sensor nodes communicating with each other in which sensor nodes are either equipped with motors for active mobility or attached to mobile objects for passive mobility. A real-time routing protocol for MWSN is an exciting area of research because messages are delivered according to their end-to-end deadlines. MWSN demands real-time routing in many applications including disasters fighting, forest fire detection and volcanic eruption detection. This paper proposes a novel idea of real-time that provides mobility and load distribution (RTMLD) for MWSN. RTMLD utilised corona mechanism and optimal forwarding metrics to forward the data packet in MWSN. It computes the optimal forwarding node based on RSSI, remaining battery level of sensor nodes and packet delay over one-hop. RTMLD ensures high packet delivery ratio and experiences minimum end-to-end delay in WSN and MWSN compared with baseline routing protocol. RTMLD has been successfully verified through test bed and simulation experiment.

Adel A. Ahmed; Norsheila Fisal

2014-01-01T23:59:59.000Z

185

Design and Verification of Distributed Multi-media D.H.Akehurst, J.Derrick, A.G.Waters  

E-Print Network [OSTI]

Design and Verification of Distributed Multi-media Systems D.H.Akehurst, J.Derrick, A of a distributed system. This paper presents a method for designing distributed multimedia systems, including This paper demonstrates a specific approach to the design of distributed systems. The approach enables

Kent, University of

186

Brief Announcement: Distributed Algorithmic Mechanism Design for Scheduling  

E-Print Network [OSTI]

Work called Distributed MinWork (DMW). DMW does not em- ploy a central authority, but instead, the agents/owner. PODC'05, July 17­20, 2005, Las Vegas, Nevada, USA. ACM 1-59593-994-2/05/0007. DMW concurrently executes

Grosu, Daniel

187

Miniaturized Multi-Band Antenna Design via Element Collocation and Inductive Feed Loading  

SciTech Connect (OSTI)

In a FY09 SDRD project, four separate antennas were designed to receive signals of interest covering a broad range of frequencies. While the elements exceeded specifications, the array footprint is substantial. Research performed by the CU Microwave Active Antenna Group in collaboration with RSL, showed promise in realizing a reduced structure. This work will expand upon this previous research. This project will result in a prototype quad-band antenna.

Martin, R. P.

2012-09-12T23:59:59.000Z

188

Design requirements for the diagnosability of distributed discrete event systems Pauline Ribot, Yannick Pencole and Michel Combacau  

E-Print Network [OSTI]

Design requirements for the diagnosability of distributed discrete event systems Pauline Ribot of a distributed system is that it is usually conceived by different designers which are in charge of only a part- lies on both the design of the distributed system itself (design and integration of components

Pencolé, Yannick

189

Kirsh Home: Articles: Distributed Cognition, Coordination and Environment Design This appeared in Proceedings of the European Cognitive Science Society (1999). Formal citation: Distributed Cognition, Coordination  

E-Print Network [OSTI]

@ucsd.edu Abstract The type of principles which cognitive engineers need to design better work environmentsKirsh Home: Articles: Distributed Cognition, Coordination and Environment Design This appeared, Coordination and Environment Design. Distributed Cognition, Coordination and Environment Design David Kirsh

Kirsh, David

190

A Momentum-Zonal Model for Predicting Zone Airflow and Temperature Distributions to Enhance Building Load and Energy Simulations  

E-Print Network [OSTI]

ABSTRACT Building load and energy simulation programs based on the complete-mixing air model fail between model complexity and capturing enough of the physics. For building load and energy calculations to building problems over the past 30 years including: complete-mixing, nodal-network models, zonal models

Chen, Qingyan "Yan"

191

Design of a REDD-compliant Benefit Distribution System for Viet Nam | Open  

Open Energy Info (EERE)

of a REDD-compliant Benefit Distribution System for Viet Nam of a REDD-compliant Benefit Distribution System for Viet Nam Jump to: navigation, search Name Design of a REDD-compliant Benefit Distribution System for Viet Nam Agency/Company /Organization UN-REDD Programme Sector Land Focus Area Biomass, Forestry Topics Co-benefits assessment, Implementation, Policies/deployment programs, Background analysis Resource Type Publications Website http://www.un-redd.org/Publica Country Vietnam UN Region South-Eastern Asia References Design of a REDD-compliant Benefit Distribution System for Viet Nam[1] Design of a REDD-compliant Benefit Distribution System for Viet Nam Screenshot "Viet Nam is one of nine countries where the UN-REDD Programme is supporting the development of REDD+ readiness. In preparing for REDD+,

192

DESIGNING AN ECOLOGY OF DISTRIBUTED AGENTS EXTENDED ABSTRACT FOR MASTER'S THESIS PROPOSAL  

E-Print Network [OSTI]

DESIGNING AN ECOLOGY OF DISTRIBUTED AGENTS EXTENDED ABSTRACT FOR MASTER'S THESIS PROPOSAL December will explore possibilities for Internet applications by creating an ecology of distributed agents, a new will build a system that represents peoples' pres­ ence by creating an ecology of agents. The applica­ tion

193

Sandia National Laboratories: The Influence of Rotor Blade Design...  

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

National Rotor Testbed (NRT) includes research to quantify the degree to which the blade design load distribution influences the rotor near- and mid-wake velocity deficits and...

194

Load Impedance as a Function of Power Input in 70-Volt, 100-Volt, and 25-Volt Distribution Systems  

Science Journals Connector (OSTI)

Distributed loudspeaker systems often make use of 70-volt or 100-volt distribution methods. In a 70-volt system, the full power of the amplifier, whatever it might be, is always available at 70 volts rms. By m...

John M. Eargle

2002-01-01T23:59:59.000Z

195

Topology optimization of piezoelectric energy harvesting devices considering static and harmonic dynamic loads  

Science Journals Connector (OSTI)

A topology optimization (TO) procedure is developed to design optimal layouts for piezoelectric energy harvesting devices (EHDs) by considering the effect of static and harmonic dynamic mechanical loads. To determine the optimal material distributions ... Keywords: Energy harvesting device, Harmonic load, Piezoelectric material with penalization, Static load, Structural optimization, Topology optimization

Jin Yee Noh; Gil Ho Yoon

2012-11-01T23:59:59.000Z

196

Abstract--This work develops a three-phase unbalanced load flow tool tailored for radial distribution networks based  

E-Print Network [OSTI]

) generators where most of the systems are single phase. New ancillary service such as static reactive power, thermal limits of grid components and power losses in radial MV-LV networks with photovoltaic (PV support by PV inverters can be also merged together with the load flow solution tool and thus, the impact

Teodorescu, Remus

197

Networked Loads in the Distribution Grid Zhifang Wang, Xiao Li, Vishak Muthukumar, Anna Scaglione, Sean Peisert, Chuck McParland  

E-Print Network [OSTI]

. Although the physical systems themselves are generally designed with high degrees of safety in mind configurations that are ad hoc and designed opportunistically to lower cost and meet local needs efficiently increasingly compelling. The physical systems themselves have always been designed with extremely high degrees

Peisert, Sean

198

Abstract--Multimedia groupware systems provide rich support for distributed team work. Yet effective design of these systems is  

E-Print Network [OSTI]

evolve design ideas. The problem is that multimedia groupware is hard to prototype because distributed that inform the design of universally accepted toolkits for building distributed multimedia systems: we1 Abstract--Multimedia groupware systems provide rich support for distributed team work. Yet

Greenberg, Saul

199

Design of a 2.5kW Low Temperature Stirling Engine for Distributed Solar Thermal Generation  

E-Print Network [OSTI]

Design of a 2.5kW Low Temperature Stirling Engine for Distributed Solar Thermal Generation Mike He on the design of a Stirling engine for distributed solar thermal ap- plications. In particular, we design renewable energy applications. A key advantage of a solar thermal system is that they can incorporate

Sanders, Seth

200

Evaluation of Design Choices for Gang Scheduling using Distributed Hierarchical Control  

E-Print Network [OSTI]

Evaluation of Design Choices for Gang Scheduling using Distributed Hierarchical Control Dror G to control the adverse e ect of badly-matched gangs. Consequently the on-line mapping and scheduling, Israel Abstract Gang scheduling | the scheduling of a number of related threads to execute simultaneously

Feitelson, Dror

Note: This page contains sample records for the topic "distribution design load" 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

Design and Evaluation of a Virtual Experimental Environment for Distributed Systems  

E-Print Network [OSTI]

Design and Evaluation of a Virtual Experimental Environment for Distributed Systems Luc Sarzyniec described using a realistic topology model. Distem relies on LXC (Linux Containers), a low-overhead of virtual nodes. Distem provides a set of user interfaces to accomodate different needs (command- line

Paris-Sud XI, Université de

202

Evaluation of high strength concrete prestressed bridge girder design  

E-Print Network [OSTI]

3.4.2 Live Load Model ..........................................................................35 3.4.3 Live Load Distribution Factor ......................................................37 3....4.4 Design Live Load Moments..........................................................38 3.4.5 Limit States ...................................................................................40 3.5 TxDOT DESIGN GUIDELINES...

Cuadros Olave, Gladys

2004-09-30T23:59:59.000Z

203

Evaluation on Cooling Energy Load with Varied Envelope Design for High-Rise Residential Buildings in Malaysia  

E-Print Network [OSTI]

With the development of the economy in the recent years, Malaysia is maintaining a high economic growth and therefore, its energy consumption increases dramatically. Residential buildings are characterized by being envelope-load dominated buildings...

Al-Tamimi, N.; Fadzil, S.

2010-01-01T23:59:59.000Z

204

Distribution:  

Office of Legacy Management (LM)

JAN26 19% JAN26 19% Distribution: OR00 Attn: h.H.M.Roth DFMusser ITMM MMMann INS JCRyan FIw(2) Hsixele SRGustavson, Document rocm Formal file i+a@mmm bav@ ~@esiaw*cp Suppl. file 'Br & Div rf's s/health (lic.only) UNITED STATES ATOMIC ENERGY COMMISSION SPECIAL NUCLEAB MATERIAL LICENSE pursuant to the Atomic Energy Act of 1954 and Title 10, Code of Federal Regulations, Chapter 1, P&t 70, "Special Nuclear Material Reg)llatiqm," a license is hereby issued a$hortztng the licensee to rekeive and possess the special nuclear material designated below; to use such special nuclear mat&ial for the purpose(s) and at the place(s) designated below; and to transfer such material to per&s authorized to receive it in accordance with the regula,tions in said Part.

205

Characterization of Brain Distribution of Sunitinib in a Murine Serial Sacrifice Design Using A Population-Based Approach  

E-Print Network [OSTI]

Characterization of Brain Distribution of Sunitinib in a Murine Serial Sacrifice Design Using A Population-Based Approach Rajneet Oberoi Department sample per subject, resulting in a study design wherein a small group

Thomas, David D.

206

Simulation study on lignite-fired power system integrated with flue gas drying and waste heat recovery – Performances under variable power loads coupled with off-design parameters  

Science Journals Connector (OSTI)

Abstract Lignite is a kind of low rank coal with high moisture content and low net heating value, which is mainly used for electric power generation. However, the thermal efficiency of power plants firing lignite directly is very low. Pre-drying is a proactive option, dehydrating raw lignite to raise its heating value, to improve the power plant thermal efficiency. A pre-dried lignite-fired power system integrated with boiler flue gas drying and waste heat recovery was proposed in this paper. The plant thermal efficiency could be improved by 1.51% at benchmark condition due to pre-drying and waste heat recovery. The main system performances under variable power loads were simulated and analyzed. Simulation results show that the improvement of plant thermal efficiency reduced to 1.36% at 50% full load. Moreover, the influences of drying system off-design parameters were simulated coupled with power loads. The variation tendencies of main system parameters were obtained. The influence of pre-drying degree (including moisture content of pre-dried lignite and raw lignite) on the plant thermal efficiency diminishes gradually with the decreasing power load. The dryer thermal efficiency and dryer exhaust temperature are also main factors and the influences on system parameters have been quantitatively analyzed.

Xiaoqu Han; Ming Liu; Jinshi Wang; Junjie Yan; Jiping Liu; Feng Xiao

2014-01-01T23:59:59.000Z

207

Design and Development of the First Polish Superconducting Fault Current Limiter For MV Distribution Systems  

Science Journals Connector (OSTI)

Superconducting fault current limiters (SFCL) are designed to protect the electrical grid from faults. The rapid increase of impedance of the SFCL reduces the short current in the circuit. In this paper, we present the design and development of coreless inductive SFCL for MV distribution systems. It is a very attractive design which reduces the weight of the device thanks to the coreless construction and the size of primary winding, reduced thanks to cryogenic cooling. The primary 2G HTS and secondary 2G HTS windings are magnetically coupled to one another. Copper primary winding connected parallely to the HTS primary winding is magnetically coupled to HTS windings and ensure that in cases of lack of cooling or superconductor failure, the protected circuit will not be disrupted. Tests performed at high power test facility shows the limiting performance of the coreless inductive SFCL.

Janusz Kozak; Michal Majka; Tadeusz Janowski; Slawomir Kozak

2012-01-01T23:59:59.000Z

208

The Impact of Rate Design and Net Metering on the Bill Savings from Distributed PV for Residential Customers in California  

SciTech Connect (OSTI)

Net metering has become a widespread policy in the U.S. for supporting distributed photovoltaics (PV) adoption. Though specific design details vary, net metering allows customers with PV to reduce their electric bills by offsetting their consumption with PV generation, independent of the timing of the generation relative to consumption - in effect, compensating the PV generation at retail electricity rates (Rose et al. 2009). While net metering has played an important role in jump-starting the residential PV market in the U.S., challenges to net metering policies have emerged in a number of states and contexts, and alternative compensation methods are under consideration. Moreover, one inherent feature of net metering is that the value of the utility bill savings it provides to customers with PV depends heavily on the structure of the underlying retail electricity rate, as well as on the characteristics of the customer and PV system. Consequently, the value of net metering - and the impact of moving to alternative compensation mechanisms - can vary substantially from one customer to the next. For these reasons, it is important for policymakers and others that seek to support the development of distributed PV to understand both how the bill savings varies under net metering, and how the bill savings under net metering compares to other possible compensation mechanisms. To advance this understanding, we analyze the bill savings from PV for residential customers of California's two largest electric utilities, Pacific Gas and Electric (PG&E) and Southern California Edison (SCE). The analysis is based on hourly load data from a sample of 215 residential customers located in the service territories of the two utilities, matched with simulated hourly PV production for the same time period based on data from the nearest of 73 weather stations in the state.

Darghouth, Naim; Barbose, Galen; Wiser, Ryan

2010-03-30T23:59:59.000Z

209

FRIB cryogenic distribution system  

SciTech Connect (OSTI)

The Michigan State University Facility for Rare Isotope Beams (MSU-FRIB) helium distribution system has been revised to include bayonet/warm valve type disconnects between each cryomodule and the transfer line distribution system, similar to the Thomas Jefferson National Accelerator Facility (JLab) and the Spallation Neutron Source (SNS) cryogenic distribution systems. The heat loads at various temperature levels and some of the features in the design of the distribution system are outlined. The present status, the plans for fabrication, and the procurement approach for the helium distribution system are also included.

Ganni, Venkatarao [JLAB; Dixon, Kelly D. [JLAB; Laverdure, Nathaniel A. [JLAB; Knudsen, Peter N. [JLAB; Arenius, Dana M. [JLAB; Barrios, Matthew N. [Michigan State; Jones, S. [Michigan State; Johnson, M. [Michigan State; Casagrande, Fabio [Michigan State

2014-01-01T23:59:59.000Z

210

FRIB cryogenic distribution system  

SciTech Connect (OSTI)

The Michigan State University Facility for Rare Isotope Beams (MSU-FRIB) helium distribution system has been revised to include bayonet/warm valve type disconnects between each cryomodule and the transfer line distribution system, similar to the Thomas Jefferson National Accelerator Facility (JLab) and the Spallation Neutron Source (SNS) cryogenic distribution systems. The heat loads at various temperature levels and some of the features in the design of the distribution system are outlined. The present status, the plans for fabrication, and the procurement approach for the helium distribution system are also included.

Ganni, V.; Dixon, K.; Laverdure, N.; Knudsen, P.; Arenius, D. [Thomas Jefferson National Accelerator Facility (JLab), Newport News, VA 23606 (United States); Barrios, M.; Jones, S.; Johnson, M.; Casagrande, F. [Facility for Rare Isotope Beams (FRIB), Michigan State University, East Lansing, MI 48824 (United States)

2014-01-29T23:59:59.000Z

211

Developing DisCo: A distributed co-design, on-line tool SUBMITTED TO THE COLLEGE OF INFORMATION STUDIES DOCTORAL  

E-Print Network [OSTI]

Developing DisCo: A distributed co-design, on-line tool SUBMITTED TO THE COLLEGE OF INFORMATION-based design tool that facilitates distributed co-design through Layered Elaboration. Layered Elaboration-based system allows co-designers to work asynchronously while being geographically distributed. DisCo contains

Golbeck, Jennifer

212

Application of measured loads to wind turbine fatigue and reliability analysis  

SciTech Connect (OSTI)

Cyclic loadings produce progressive damage that can ultimately result in wind turbine structural failure. There are many issues that must be dealt with in turning load measurements into estimates of component fatigue life. This paper deals with how the measured loads can be analyzed and processed to meet the needs of both fatigue life calculations and reliability estimates. It is recommended that moments of the distribution of rainflow-range load amplitudes be calculated and used to characterize the fatigue loading. These moments reflect successively more detailed physical characteristics of the loading (mean, spread, tail behavior). Moments can be calculated from data samples and functional forms can be fitted to wind conditions, such as wind speed and turbulence intensity, with standard recession techniques. Distributions of load amplitudes that accurately reflect the damaging potential of the loadings can be estimated from the moments at any, wind condition of interest. Fatigue life can then be calculated from the estimated load distributions, and the overall, long-term, or design spectrum can be generated for any particular wind-speed distribution. Characterizing the uncertainty in the distribution of cyclic loads is facilitated by using a small set of descriptive statistics for which uncertainties can be estimated. The effects of loading parameter uncertainty can then be transferred to the fatigue life estimate and compared with other uncertainties, such as material durability.

Veers, P.S. [Sandia National Labs., Albuquerque, NM (United States); Winterstein, S.R. [Stanford Univ., CA (United States)

1997-01-01T23:59:59.000Z

213

Sonic Load History Recorder. I. Feasibility Study  

Science Journals Connector (OSTI)

The acoustic loads to which an aircraft is subjected during its lifetime must be known for structural?fatigue analysis in aircraft design. The Sonic Load History Recorder senses filters smooths and records some measure of the length of time the sound pressure has spent in a given level band. Sound?pressure?level distributions over long periods of time are calculated for a present?day aircraft from engine?operating parameters operational characteristics of the aircraft and from ambient atmospheric conditions. The requirements for a device which is designed to provide a useful description of acoustic loads at a point on an operational aircraft are developed on the basis of the SPL histories and fatigue criteria. [This work was supported under U. S. Air Force Contract AF 33(616)?7789.

N. Doelling; D. Noiseux

1962-01-01T23:59:59.000Z

214

Design and operations of a load-tolerant external conjugate-T matching system for the A2 ICRH antennas at JET  

Science Journals Connector (OSTI)

A load-tolerant external conjugate-T (ECT) impedance matching system for two A2 ion cyclotron resonance heating (ICRH) antennas was successfully put into operation at JET. The system allows continuous injection of the radio-frequency (RF) power into plasma in the presence of strong antenna loading perturbations caused by edge-localized modes (ELMs). Reliable ECT performance was demonstrated under a variety of antenna loading conditions including H-mode plasmas with radial outer gaps (ROGs) in the range 4–14 cm. The high resilience to ELMs predicted during the circuit simulations was fully confirmed experimentally. Dedicated arc-detection techniques and real-time matching algorithms were developed as a part of the ECT project. The new advanced wave amplitude comparison system has proven highly efficient in detection of arcs both between and during ELMs. The ECT system has allowed the delivery of up to 4 MW of RF power without trips into plasmas with type-I ELMs. Together with the 3 dB system and the ITER-like antenna, the ECT has brought the total RF power coupled to ELMy plasma to over 8 MW, considerably enhancing JET research capabilities. This paper provides an overview of the key design features of the ECT system and summarizes the main experimental results achieved so far.

I. Monakhov; M. Graham; T. Blackman; S. Dowson; F. Durodie; P. Jacquet; J. Lehmann; M.-L. Mayoral; M.P.S. Nightingale; C. Noble; H. Sheikh; M. Vrancken; A. Walden; A. Whitehurst; E. Wooldridge; JET-EFDA Contributors

2013-01-01T23:59:59.000Z

215

Design and analysis of a high heat load pin-post monochromator crystal with an integral water manifold  

SciTech Connect (OSTI)

Conventional minichannel water cooling geometry will not perform satisfactorily for x-radiation from a wiggler source at the Advanced Photon Source. For closed-gap wiggler operation, cryogenic silicon appears to be the only option for crystals in Bragg-Bragg geometry. For operation of the wiggler at more modest critical energies ({lt}17 keV), the first crystal can be cooled by a pin-post cooling scheme, using water at room temperature as a coolant. In order to limit the water consumption to 4 gpm and hence the risk of introducing vibrations to the crystal, the intensely cooled area of the crystal was matched to the footprint of the beam, leaving a less cooled area of the crystal subject to survival in a missteered beam but not to perform as a monochromator. The manifold design avoids large areas of high water pressure that would bow the crystal. We present here the design of a pin-post monochromator consisting of a four-layer silicon manifold system and an integrally bonded 39{percent} nickel-iron alloy base plate. A transparent prototype of the design will be exhibited. Fabrication techniques and design advantages will be discussed. {copyright} {ital 1996 American Institute of Physics.}

Schildkamp, W. [Consortium for Advanced Radiation Sources, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637 (United States)] [Consortium for Advanced Radiation Sources, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637 (United States); Tonnessen, T. [Rocketdyne Albuquerque Operations, 2511 C. Broadbent Parkway, N.E., Albuquerque, NM 87107 (United States)] [Rocketdyne Albuquerque Operations, 2511 C. Broadbent Parkway, N.E., Albuquerque, NM 87107 (United States)

1996-09-01T23:59:59.000Z

216

Design Support for Distributed Systems: DSE4DS D.H.Akehurst, B.Bordbar, J.Derrick, A.G.Waters  

E-Print Network [OSTI]

Design Support for Distributed Systems: DSE4DS D.H.Akehurst, B.Bordbar, J.Derrick, A towards the provision of successful distributed system designs. The purpose of the DSE4DS project facilities for the design of multimedia distributed systems, to ensure that they can effectively meet

Kent, University of

217

A majorization-minimization approach to design of power distribution networks  

SciTech Connect (OSTI)

We consider optimization approaches to design cost-effective electrical networks for power distribution. This involves a trade-off between minimizing the power loss due to resistive heating of the lines and minimizing the construction cost (modeled by a linear cost in the number of lines plus a linear cost on the conductance of each line). We begin with a convex optimization method based on the paper 'Minimizing Effective Resistance of a Graph' [Ghosh, Boyd & Saberi]. However, this does not address the Alternating Current (AC) realm and the combinatorial aspect of adding/removing lines of the network. Hence, we consider a non-convex continuation method that imposes a concave cost of the conductance of each line thereby favoring sparser solutions. By varying a parameter of this penalty we extrapolate from the convex problem (with non-sparse solutions) to the combinatorial problem (with sparse solutions). This is used as a heuristic to find good solutions (local minima) of the non-convex problem. To perform the necessary non-convex optimization steps, we use the majorization-minimization algorithm that performs a sequence of convex optimizations obtained by iteratively linearizing the concave part of the objective. A number of examples are presented which suggest that the overall method is a good heuristic for network design. We also consider how to obtain sparse networks that are still robust against failures of lines and/or generators.

Johnson, Jason K [Los Alamos National Laboratory; Chertkov, Michael [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

218

Distributed Solar Incentive Programs: Recent Experience and Best Practices for Design and Implementation  

SciTech Connect (OSTI)

Based on lessons from recent program experience, this report explores best practices for designing and implementing incentives for small and mid-sized residential and commercial distributed solar energy projects. The findings of this paper are relevant to both new incentive programs as well as those undergoing modifications. The report covers factors to consider in setting and modifying incentive levels over time, differentiating incentives to encourage various market segments, administrative issues such as providing equitable access to incentives and customer protection. It also explores how incentive programs can be designed to respond to changing market conditions while attempting to provide a longer-term and stable environment for the solar industry. The findings are based on interviews with program administrators, regulators, and industry representatives as well as data from numerous incentive programs nationally, particularly the largest and longest-running programs. These best practices consider the perspectives of various stakeholders and the broad objectives of reducing solar costs, encouraging long-term market viability, minimizing ratepayer costs, and protecting consumers.

Bird, L.; Reger, A.; Heeter, J.

2012-12-01T23:59:59.000Z

219

Plug Load  

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

Residential Commercial Commercial Industrial Lighting Energy Smart Grocer Program HVAC Program Shell Measures Commercial Kitchen & Food Service Equipment Plug Load New...

220

The Impact of Rate Design and Net Metering on the Bill Savings from Distributed PV for Residential Customers in California  

E-Print Network [OSTI]

Load Data..Factor 2.2. Customer Load Data Our analysis relies on 15-analysis is based on hourly load data from a sample of 215

Darghouth, Naim

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distribution design load" 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

Preliminary Evaluation of Load Management for Electricity End Users  

E-Print Network [OSTI]

The planning, design and implementation of load management is complex and expensive. The results of a load management program are subject to numerous uncertainties related to load characteristics, power cost savings, load management costs...

Collier, S. E.

1984-01-01T23:59:59.000Z

222

14611-4244-1176-9/07/$25.00 2007 IEEE. Design Trade-offs for Load/Store Buffers in Embedded  

E-Print Network [OSTI]

employed data caches and load/store queues (LSQ) to combat increasing latency. Given the area and power and power hungry out-of- order speculation. A compact, low-power load/store buffer that also provides-offs between wide small-entry and narrow large-entry buffers with respect to size, power, load hit ratio

Draper, Jeff

223

Distributed & conceptual CAD (DC-CAD) : a new software solution for product design  

E-Print Network [OSTI]

Many computer aided design (CAD) software packages focus on detailed design and not on early stage, conceptual design. The ability to conceptualize and sketch early versions of a product solution is currently limited to ...

Egan, Mark D. (Mark Douglas), 1985-

2007-01-01T23:59:59.000Z

224

Design optimization of a fuzzy distributed generation (DG) system with multiple renewable energy sources  

Science Journals Connector (OSTI)

The global rise in energy demands brings major obstacles to many energy organizations in providing adequate energy supply. Hence many techniques to generate cost effective reliable and environmentally friendly alternative energy source are being explored. One such method is the integration of photovoltaic cells wind turbine generators and fuel-based generators included with storage batteries. This sort of power systems are known as distributed generation (DG) power system. However the application of DG power systems raise certain issues such as cost effectiveness environmental impact and reliability. The modelling as well as the optimization of this DG power system was successfully performed in the previous work using Particle Swarm Optimization (PSO). The central idea of that work was to minimize cost minimize emissions and maximize reliability (multi-objective (MO) setting) with respect to the power balance and design requirements. In this work we introduce a fuzzy model that takes into account the uncertain nature of certain variables in the DG system which are dependent on the weather conditions (such as; the insolation and wind speed profiles). The MO optimization in a fuzzy environment was performed by applying the Hopfield Recurrent Neural Network (HNN). Analysis on the optimized results was then carried out.

2012-01-01T23:59:59.000Z

225

Load Control  

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

Visualization and Controls Peer Review Visualization and Controls Peer Review Load Control for System Reliability and Measurement-Based Stability Assessment Dan Trudnowski, PhD, PE Montana Tech Butte, MT 59701 dtrudnowski@mtech.edu 406-496-4681 October 2006 2 Presentation Outline * Introduction - Goals, Enabling technologies, Overview * Load Control - Activities, Status * Stability Assessment - Activities, Status * Wrap up - Related activities, Staff 3 Goals * Research and develop technologies to improve T&D reliability * Technologies - Real-time load control methodologies - Measurement-based stability-assessment 4 Enabling Technologies * Load control enabled by GridWise technology (e.g. PNNL's GridFriendly appliance) * Real-time stability assessment enabled by Phasor Measurement (PMU) technology 5 Project Overview * Time line: April 18, 2006 thru April 17, 2008

226

Main Injector power distribution system  

SciTech Connect (OSTI)

The paper describes a new power distribution system for Fermilab's Main Injector. The system provides 13.8 kV power to Main Injector accelerator (accelerator and conventional loads) and is capable of providing power to the rest of the laboratory (backfeed system). Design criteria, and features including simulation results are given.

Cezary Jach and Daniel Wolff

2002-06-03T23:59:59.000Z

227

The design and implementation of a distributed photo sharing Android application over ad-hoc wireless  

E-Print Network [OSTI]

We present a distributed photo-sharing Android application, CameraDP, that primarily relies on ad-hoc Wifi. The app runs on top of the novel DIstributed Programming Layer Over Mobile Agents (DIPLOMA) programming abstraction. ...

Li, HaoQi, M. Eng. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

228

Wiring design based on Global Energy Requirement criteria: a first step towards optimization of DC distribution voltage  

E-Print Network [OSTI]

optimization methodology based on the primary energy environmental impact 2.1. The Global Energy RequirementWiring design based on Global Energy Requirement criteria: a first step towards optimization of DC. Introduction Nowadays, the global energy context leads to a need for the development of distributed Renewable

Paris-Sud XI, Université de

229

System level design of power distribution network for mobile computing platforms  

E-Print Network [OSTI]

grid here. Design of stacked power delivery is defined as an optimization formulation to obtain mini-

Shayan Arani, Amirali

2011-01-01T23:59:59.000Z

230

Model for Sustainable Urban Design With Expanded Sections on Distributed Energy Resources, February 2004  

Broader source: Energy.gov [DOE]

Document describing a model design for urban development and redevelopment that will reduce urban energy consumption

231

MTS Table Top Load frame  

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

MTS Table Top Load frame MTS Table Top Load frame The Non-destructive Evaluation group operates an MTS Table Top Load frame for ultimate strength and life cycle testing of various ceramic, ceramic-matrix (FGI), carbon, carbon fiber, cermet (CMC) and metal alloy engineering samples. The load frame is a servo-hydraulic type designed to function in a closed loop configuration under computer control. The system can perform non-cyclic, tension, compression and flexure testing and cyclic fatigue tests. The system is comprised of two parts: * The Load Frame and * The Control System. Load Frame The Load Frame (figure 1) is a cross-head assembly which includes a single moving grip, a stationary grip and LVDT position sensor. It can generate up to 25 kN (5.5 kip) of force in the sample under test and can

232

Topology optimization-based distribution design of actuation voltage in static shape control of plates  

Science Journals Connector (OSTI)

This paper investigates the optimal spatial distribution of single-channel actuation voltage in static structural shape control problem. It is pointed out that single-channel actuation voltage input for shape control applications is of practical importance ... Keywords: Shape control, Single channel, Topology optimization, Voltage distribution

Zhan Kang; Liyong Tong

2008-10-01T23:59:59.000Z

233

Distributed Algorithmic Mechanism Design for Scheduling on Unrelated Thomas E. Carroll  

E-Print Network [OSTI]

on unrelated machines. This mechanism, called Distributed MinWork (DMW) is a distributed implementation of the MinWork mechanism proposed by Nisan and Ronen [12]. DMW is resilient to agents deviating from the protocol since the cheaters are detected and eliminated from further participation. We show that DMW

Grosu, Daniel

234

Design and Evaluation of a Distributed Clustering Algorithm for Mobile ad hoc Networks  

Science Journals Connector (OSTI)

......motivated by the GPS quorum hybrid routing algorithm, where...a conceptual cellular grid. The proposed distributed...motivated by the GPS quorum hybrid routing algorithm, where...a conceptual cellular grid. The proposed distributed...is no pre-existing infrastructure or in which it is not......

Daniel Lacks; Mainak Chatterjee; Taskin Kocak

2009-08-01T23:59:59.000Z

235

Survivability models for the assessment of smart grid distribution automation network designs  

Science Journals Connector (OSTI)

Smart grids are fostering a paradigm shift in the realm of power distribution systems. Whereas traditionally different components of the power distribution system have been provided and analyzed by different teams through different lenses, smart grids ... Keywords: fault tolerance, smart grid, survivability, transient analysis

Alberto Avritzer; Sindhu Suresh; Daniel Sadoc Menasché; Rosa Maria Meri Leão; Edmundo de Souza e Silva; Morganna Carmem Diniz; Kishor Trivedi; Lucia Happe; Anne Koziolek

2013-04-01T23:59:59.000Z

236

In the last decades, much effort has been spent on the design and provision of sophisti-cated communication infrastructures. The development of end-user oriented distributed  

E-Print Network [OSTI]

of distributed applications. · some design concepts are not clearly defined, thus prohibiting their effectivePreface v Preface In the last decades, much effort has been spent on the design and provision of sophisti- cated communication infrastructures. The development of end-user oriented distributed system

van Sinderen, Marten

237

Methodology for the optimal design of PEV charging systems with multiple chargers and distributed resources  

E-Print Network [OSTI]

Increased penetration of plug-in electric vehicles (PEVs) will necessitate deployment of numerous PEV chargers. Pairing these chargers with renewable distributed generation (DG) and storage can potentially alleviate negative ...

Gunter, Samantha Joellyn

238

Design and applications of a secure and decentralized Distributed Hash Table  

E-Print Network [OSTI]

Distributed Hash Tables (DHTs) are a powerful building block for highly scalable decentralized systems. They route requests over a structured overlay network to the node responsible for a given key. DHTs are subject to the ...

Lesniewski-Laas, Christopher T. (Christopher Tur), 1980-

2011-01-01T23:59:59.000Z

239

The Cryogenic Distribution Line for the LHC: Functional Specification and Conceptual Design  

Science Journals Connector (OSTI)

The Large Hadron Collider (LHC)1 currently under construction at CERN will make use of superconducting magnets operating in superfluid helium below 2 K. The cryogenic distribution scheme for each of the eight sec...

W. Erdt; G. Riddone; R. Trant

2000-01-01T23:59:59.000Z

240

Load Management for Industry  

E-Print Network [OSTI]

In the electric utility industry, load management provides the opportunity to control customer loads to beneficially alter a utility's load curve Load management alternatives are covered. Load management methods can be broadly classified into four...

Konsevick, W. J., Jr.

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distribution design load" 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

The Promise of Load Balancing the Parameterization of Moist Convection Using a Model Data Load Index  

Science Journals Connector (OSTI)

The parameterization of physical processes in atmospheric general circulation models contributes to load imbalances among individual processors of message-passing distributed-multiprocessor systems. Load imbalances increase the overall time to ...

S. P. Muszala; D. A. Connors; J. J. Hack; G. Alaghband

2006-04-01T23:59:59.000Z

242

Long-term Analysis of Gear Loads in Fixed Offshore Wind Turbines Considering Ultimate Operational Loadings  

Science Journals Connector (OSTI)

Abstract The long-term extreme value analysis of gear transmitted load due to the main shaft torque is presented. Two methods, the multibody simulations (MBS) and a simplified method, are demonstrated for the gear transmitted load calculation. The simplified method is verified by the MBS results. The long-term extreme value of the gear transmitted load for wind speeds from the cut-in to the cut-out values is calculated by the simplified method from the long-term distribution of the main shaft torque. Three statistical methods for long-term extreme value analysis of the main shaft torque in the offshore wind turbines are presented. They are then used to predict the extreme value of the gear transmitted load. An alternative approach, the design state or the environmental contour method is proposed and verified by the full long-term results. The methods are exemplified by a 5 MW gearbox case study. The results of this paper are the basis for further work in Ultimate Limit State (ULS) gear design.

Amir R. Nejad; Zhen Gao; Torgeir Moan

2013-01-01T23:59:59.000Z

243

Implications of an open, extensible, and distributed hypermedia information system architecture for interprocess communication subsystem design  

E-Print Network [OSTI]

in an information system as openness and extensibility. Secondly, it was shown that the design and implementation of an interprocess communication subsystem has critical implications for the supersystem into which it is integrated. Namely, if the interprocess...

Nuernberg, Peter John

1994-01-01T23:59:59.000Z

244

Integration of HVAC System Design with Simplified Duct Distribution- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This Building America Innovations profile describes work by Building America research teams who field tested simplified duct designs in hundreds of homes, confirming the performance of short compact duct runs, with supply registers near interior walls.

245

Optimum design for BB84 quantum key distribution in tree-type passive optical networks  

E-Print Network [OSTI]

We show that there is a tradeoff between the useful key distribution bit rate and the total length of deployed fiber in tree-type passive optical networks for BB84 quantum key distribution applications. A two stage splitting architecture where one splitting is carried in the central office and a second in the outside plant and figure of merit to account for the tradeoff are proposed. We find that there is an optimum solution for the splitting ratios of both stages in the case of Photon Number Splitting (PNS) attacks and Decoy State transmission. We then analyze the effects of the different relevant physical parameters of the PON on the optimum solution.

Jose Capmany; Carlos R. Fernandez-Pousa

2011-03-24T23:59:59.000Z

246

The design of electric motor car's body network based on CAN-bus distributed control  

Science Journals Connector (OSTI)

CAN-bus is a typical bus control technology, and is now widely applied in many areas. In view of the characteristics of the electric vehicle body, this paper puts forward a plan that applies CAN-bus technology to build electric vehicle body network. ... Keywords: CAN bus, distributed control, electric car and body network

Wang Jianfeng; Wang Dafang; Xiong Jie

2009-06-01T23:59:59.000Z

247

A design approach to a risk review for fuel cell-based distributed cogeneration systems  

E-Print Network [OSTI]

A risk review of a fuel cell-based distributed co-generation (FC-Based DCG) system was conducted to identify and quantify the major technological system risks in a worst-case scenario. A risk review entails both a risk assessment and a risk...

Luthringer, Kristin Lyn

2004-09-30T23:59:59.000Z

248

Design and analysis of distributed primitives for mobile ad hoc networks  

E-Print Network [OSTI]

by the network, which poses a serious challenge for the design and analysis of reliable protocols. In this work, three different approaches are used to handle mobility. The first part of the dissertation employs the simple technique of ignoring the mobility...

Chen, Yu

2006-10-30T23:59:59.000Z

249

Design of safety distributed control under bounded time-varying communication delay  

E-Print Network [OSTI]

procedure which guarantees control agreement between the two agents. We solve the safety control problem investigate the design of a feedback methodology dedicated to handle communication delays for ensuring safety of Technology, Cambridge, MA 02139, USA Email: dbp@mit.edu. This work was in part supported by NSF Award

Del Vecchio, Domitilla

250

Design of safety distributed control under bounded time-varying communication delay  

E-Print Network [OSTI]

procedure which guarantees control agreement between the two agents. We solve the safety control problem investigate the design of a feedback methodology dedicated to handle communication delays for ensuring safety of Technology, Cambridge, MA 02139, USA Email: dbp@mit.edu that we advocate is grounded on the introduction

Del Vecchio, Domitilla

251

Evaluating eXtreme Scenario-based Design in a Distributed Agile Team  

E-Print Network [OSTI]

Virginia Tech Blacksburg VA 24061-0106 mccricks@cs.vt.edu #12;Introduction Agile software development exploring ways to integrate usability into agile software development methodologies. However, they do with Meridium, Inc. to look at how eXtreme Scenario-based Design (XSBD), an agile usability approach developed

252

MEMORANDUM FOR DISTRIBUTION - Report on Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events  

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

September 16, 2011 September 16, 2011 MEMORANDUM FOR DISTRIBUTION FROM: SUBJECT: DANIEL B. PONEMA Report on Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events Following the March 2011 accident at the Fukushima Daiichi nuclear power plant, the Department of Energy (DOE) took several actions to review the safety of its nuclear facilities. These actions focused on learning how DOE can better prepare to manage potential beyond design basis events. A summary of these actions and the resulting insights, and recommended opportunities and actions to improve nuclear safety at DOE> are included in the attached report. I have directed the Office of Health, Safety and Security (HSS) to work with DOE's Nuclear Safety and Security Coordinating Council, and the Program and Field Offices of

253

MEMORANDUM FOR DISTRIBUTION - Report on Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events  

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

September 16, 2011 September 16, 2011 MEMORANDUM FOR DISTRIBUTION FROM: SUBJECT: DANIEL B. PONEMA Report on Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events Following the March 2011 accident at the Fukushima Daiichi nuclear power plant, the Department of Energy (DOE) took several actions to review the safety of its nuclear facilities. These actions focused on learning how DOE can better prepare to manage potential beyond design basis events. A summary of these actions and the resulting insights, and recommended opportunities and actions to improve nuclear safety at DOE> are included in the attached report. I have directed the Office of Health, Safety and Security (HSS) to work with DOE's Nuclear Safety and Security Coordinating Council, and the Program and Field Offices of

254

1486 IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 25, NO. 8, AUGUST 2006 Modeling and Analysis of Loading Effect on Leakage  

E-Print Network [OSTI]

) of a gate (e.g., G) is connected to the input of other gates (Gout1, Gout2, . . . , Goutn), the gate leakage components in a device. Fig. 2. Illustration of the loading effect for the logic gate G. Gout1, . . . , Goutn

Bhunia, Swarup

255

High-Power Rf Load  

DOE Patents [OSTI]

A compact high-power RF load comprises a series of very low Q resonators, or chokes [16], in a circular waveguide [10]. The sequence of chokes absorb the RF power gradually in a short distance while keeping the bandwidth relatively wide. A polarizer [12] at the input end of the load is provided to convert incoming TE.sub.10 mode signals to circularly polarized TE.sub.11 mode signals. Because the load operates in the circularly polarized mode, the energy is uniformly and efficiently absorbed and the load is more compact than a rectangular load. Using these techniques, a load having a bandwidth of 500 MHz can be produced with an average power dissipation level of 1.5 kW at X-band, and a peak power dissipation of 100 MW. The load can be made from common lossy materials, such as stainless steel, and is less than 15 cm in length. These techniques can also produce loads for use as an alternative to ordinary waveguide loads in small and medium RF accelerators, in radar systems, and in other microwave applications. The design is easily scalable to other RF frequencies and adaptable to the use of other lossy materials.

Tantawi, Sami G. (San Mateo, CA); Vlieks, Arnold E. (Livermore, CA)

1998-09-01T23:59:59.000Z

256

A hardware-based approach to adaptive load-sharing on a local area network  

E-Print Network [OSTI]

Load-distribution is used to enhance the performance of distributed systems. Two types of load-distribution techniques have been studied and used: load-sharing schemes, in which the total load on the system is distributed in such a way...

Reddy, Harikrishna M

1994-01-01T23:59:59.000Z

257

Prediction of a non-uniform freestream velocity distribution for counterrotating propeller configurations and the effect on performance/acoustic  

E-Print Network [OSTI]

aerodynamic loads which are combined with the propeller geometry to predict the radiated acoustics. The effect of the non-uniform freestream velocity distribution on counterrotating propeller design and analysis is shown as well as comparisons with flight...

Allen, Christopher Shane

2012-06-07T23:59:59.000Z

258

Distribution Behavior of U(VI), Pu(IV), Am(III), and Zr(IV) with N,N-Dihexyl Octanamide Under Uranium-Loading Conditions  

SciTech Connect (OSTI)

While the tri-n-butyl phosphate (TBP)-based PUREX process has been the workhorse of the nuclear fuel reprocessing industry for the last four and a half decades, a few drawbacks associated with the use of TBP have caused concern to the separation scientists and technologists. These shortcomings may pose a serious challenge particularly during the reprocessing of (a) short cooled thermal reactor fuels, (b) fast reactor fuels with the larger Pu content and significantly higher burn up, and (c) while treating various waste streams for their disposal to the environment. The N,N-dialkyl aliphatic amides have received particular attention as alternate potential extractants for the reprocessing of spent nuclear fuels in view of (a) the innocuous nature of their degradation products, namely, carboxylic acids/amines and (b) the possibility to incinerate the used solvent leading to reduced volume of secondary waste. The physical and chemical properties of these amides are influenced strongly by the nature of alkyl groups. The extractant N,N-dihexyl octanamide (DHOA) was found to be a promising candidate among a large number of extractants studied. Laboratory batch studies as well as mixer settler studies were performed under process conditions with DHOA and compared with those of TBP. DHOA was found to extract Pu(IV) more efficiently than TBP, both at trace-level concentration as well as under uranium loading conditions. In addition, the extraction behavior of Am(III) and Zr(IV) was studied at varying nitric acid concentrations (1 to 6 M). Extraction behavior of uranium at macroconcentrations (9.9 to 157.7 g/l) was carried out at different temperatures, and it was observed that D{sub U} decreased with the increase in U loading as well as with the increase of temperature (in the range 25 to 45 deg. C) and that the two-phase reaction was exothermic in nature. Mixer settler studies on U(VI) revealed that DHOA is similar to TBP during the extraction cycle but better than TBP during the stripping cycle.

Manchanda, V.K.; Ruikar, P.B.; Sriram, S.; Nagar, M.S.; Pathak, P.N.; Gupta, K.K.; Singh, R.K.; Chitnis, R.R.; Dhami, P.S.; Ramanujam, A. [Bhabha Atomic Research Centre (India)

2001-06-15T23:59:59.000Z

259

A new relay for interconnected distribution in the UK -- Design and field experience  

SciTech Connect (OSTI)

The design of a new microprocessor based multifunctional relay for use on interconnected 33 kV circuits is described. The relay uses sequence component principles and rented low grade VF communication. It was needed urgently because rented metallic communication circuits, which are in widespread use, are being withdrawn in the UK. The relay development is unusual because of its measurement methods and because it can derive polarizing voltage from existing 11 kV VTs. The time scales required were such that development, field trials and installation phases overlapped. The field experience is described.

Sanderson, J.V.H.; Kyriakides, M.K. (Power Engineering Consultants Ltd., Cheshire (United Kingdom)); An, W. (UMIST, Manchester (United Kingdom)); Mackrell, A.J.; Postlethwaite, H.R.; Rogers, W.J.S.; Swinnerton, B.W. (Manweb plc, Chester (United Kingdom))

1994-01-01T23:59:59.000Z

260

16 Load Data Cleansing and Bus Load  

E-Print Network [OSTI]

375 16 Load Data Cleansing and Bus Load Coincidence Factors* Wenyuan Li, Ke Wang, and Wijarn Wangdee 16.1 INTRODUCTION Load curve data refer to power consumptions recorded by meters at certain time intervals at buses of individual substations. Load curve data are one of the most important datasets

Wang, Ke

Note: This page contains sample records for the topic "distribution design load" 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

Design of improved controller for thermoelectric generator used in distributed generation  

Science Journals Connector (OSTI)

This paper investigates the application of thermal generation based on solid-state devices such as thermoelectric generators (TEGs) as a novel technological alternative of distributed generation (DG). The full detailed modeling and the dynamic simulation of a three-phase grid-connected TEG used as a dispersed generator is studied. Moreover, a new control scheme of the TEG is proposed, which consists of a multi-level hierarchical structure and incorporates a maximum power point tracker (MPPT) for better use of the thermal resource. In addition, reactive power compensation of the electric grid is included, operating simultaneously and independently of the active power generation. Validation of models and control schemes is performed by using the MATLAB/Simulink environment. Moreover, a small-scale TEG experimental set-up was employed to demonstrate the accuracy of proposed models.

M.G. Molina; L.E. Juanicó; G.F. Rinalde; E. Taglialavore; S. Gortari

2010-01-01T23:59:59.000Z

262

Passive damping of beam vibrations through distributed electric networks and piezoelectric transducers: prototype design and experimental validation  

E-Print Network [OSTI]

The aim of this work is two-fold: to design devices for passive electric damping of structural vibrations by distributed piezoelectric transducers and electric networks, and to experimentally validate the effectiveness of such a damping concept. Two different electric networks are employed, namely a purely resistive network and an inductive-resistive one. The presented devices can be considered as distributed versions of the well-known resistive and resonant shunt of a single piezoelectric transducer. The technicalfeasibility and damping effectiveness of the proposed novel devices are assessed through the construction of an experimental prototype. Experimental results are shown to be in very good agreement with theoretical predictions. It is proved that the presented technique allows for a substantial reduction in the inductances used when compared with those required by the single resonant shunted transducer. In particular, it is shown that the required inductance decreases when the number of piezoelectric elements is increased. The electric networks are optimized in order to reduce forced vibrations close to the first resonance frequency. Nevertheless, the damping effectiveness for higher modes is experimentally proved. As well as specific results, fundamental theoretical and experimental considerations for passive distributed vibration control are provided.

F. dell'Isola; C. Maurini; M. Porfiri

2010-07-12T23:59:59.000Z

263

Design and operations of load-tolerant external conjugate-T matching system for the A2 ICRH antennas at JET  

E-Print Network [OSTI]

A load-tolerant External Conjugate-T (ECT) impedance matching system for two A2 Ion Cyclotron Resonance Heating (ICRH) antennas has been successfully put into operation at JET. The system allows continuous injection of the RF power into plasma in the presence of strong antenna loading perturbations caused by Edge Localized Modes (ELMs). Reliable ECT performance has been demonstrated under a variety of antenna loading conditions including H-mode plasmas with Radial Outer Gaps (ROG) in the range of 4-14 cm. The high resilience to ELMs predicted during the circuit simulations has been fully confirmed experimentally. Dedicated arc detection techniques and real-time matching algorithms have been developed as a part of the ECT project. The new Advanced Wave Amplitude Comparison System (AWACS) has proven highly efficient in detection of arcs both between and during ELMs. The ECT system has allowed the delivery of up to 4 MW of RF power without trips into plasmas with Type-I ELMs. Together with the 3dB system and the...

Monakhov, I; Blackman, T; Dowson, S; Durodie, F; Jacquet, P; Lehmann, J; Mayoral, M-L; Nightingale, M P S; Noble, C; Sheikh, H; Vrancken, M; Walden, A; Whitehurst, A; Wooldridge, E; contributors, JET-EFDA

2013-01-01T23:59:59.000Z

264

Design of a Receding Horizon Control System for Nuclear Reactor Power Distribution  

SciTech Connect (OSTI)

A receding horizon control method is applied to the axial power distribution control in a pressurized water reactor. The basic concept of receding horizon control is to solve on-line, at each sampling instant, an optimization problem for a finite future and to implement the first optimal control input as the current control input. Thus, it is a suitable control strategy for time-varying systems. The reactor model used for computer simulations is a two-point xenon oscillation model based on the nonlinear xenon and iodine balance equations and a one-group, one-dimensional, neutron diffusion equation with nonlinear power reactivity feedback that adequately describes axial oscillations and treats the nonlinearities explicitly. The reactor core is axially divided into two regions, and each region has one input and one output and is coupled with the other region. Through numerical simulations, it is shown that the proposed control algorithm exhibits very fast tracking responses due to the step and ramp changes of axial target shape and also works well in a time-varying parameter condition.

Na, Man Gyun [Chosun University (Korea, Republic of)

2001-07-15T23:59:59.000Z

265

Reconstruction of a wind turbine's endured load spectrum using a short-time load measurement  

E-Print Network [OSTI]

Reconstruction of a wind turbine's endured load spectrum using a short-time load measurement Abstract Wind turbines (WT) are normally designed for a service life (SL) of 20 years. In Germany, over safety. 1 Introduction A wind turbine (WT) is normally designed, tested and certified for a design life

Berlin,Technische Universität

266

Design of a turbomachine set for a fluid catalytic cracking plant and its shop-testing under full-load conditions  

SciTech Connect (OSTI)

In fluid catalytic cracking plants, heavy hydrocarbons are converted into low-boiling point products. Starting from a concise description of the energy recovery system, this paper details the design features of a turbo machine set for an FCC plant, with the emphasis on the design of the four-stage 12,000 kW process gas expander. 6 refs.

Turanskyj, L.; Woelk, G.U.

1982-04-01T23:59:59.000Z

267

Duet: Cloud Scale Load Balancing with Hardware and Rohan Gandhi  

E-Print Network [OSTI]

that scale using a distributed data plane that runs on commodity servers. Software load balancers offer low overlooked resource in the data center networks � the switches themselves. We show how to embed the load-DC traffic. This traffic volume induces heavy load on both data plane and control plane of the load balancer

Zhang, Ming

268

Randomized Load Balancing by Joining and Splitting Bins James Aspnes  

E-Print Network [OSTI]

Consider the following load balancing scenario: a certain amount of work load is distributed among a setRandomized Load Balancing by Joining and Splitting Bins James Aspnes Yitong Yin § 1 Introduction, one of the existing machines gives some of its load to the new machine; and upon a departure

Aspnes, James

269

Scaling of load in communications networks Onuttom Narayan1  

E-Print Network [OSTI]

that the load at each node in a preferential attachment network scales as a power of the degree of the node power-law degree distributions as compared to the scaling of the load versus degree. This emphasizes that the probability distribution for the load scales as p(l) 1/l with = 2.2. Subsequently, data for net- works

California at Santa Cruz, University of

270

Scaling of load in communications networks  

Science Journals Connector (OSTI)

We show that the load at each node in a preferential attachment network scales as a power of the degree of the node. For a network whose degree distribution is p(k)?k??, we show that the load is l(k)?k? with ?=??1, implying that the probability distribution for the load is p(l)?1/l2 independent of ?. The results are obtained through scaling arguments supported by finite size scaling studies. They contradict earlier claims, but are in agreement with the exact solution for the special case of tree graphs. Results are also presented for real communications networks at the IP layer, using the latest available data. Our analysis of the data shows relatively poor power-law degree distributions as compared to the scaling of the load versus degree. This emphasizes the importance of the load in network analysis.

Onuttom Narayan and Iraj Saniee

2010-09-02T23:59:59.000Z

271

SciTech Connect: Taming the Grid: Dynamic Load Composition Quantificat...  

Office of Scientific and Technical Information (OSTI)

Taming the Grid: Dynamic Load Composition Quantification at the Distribution-Transformer Level Citation Details In-Document Search Title: Taming the Grid: Dynamic Load Composition...

272

Energy performance of underfloor air distribution systems  

E-Print Network [OSTI]

Underfloor Air Distribution (UFAD) Design Guide.  Atlanta: distribution, UFAD, EnergyPlus, EnergyPlus/UFAD, energy  modeling, design design calculations must account for the distribution of 

Bauman, Fred; Webster, Tom; Linden, Paul; Buhl, Fred

2007-01-01T23:59:59.000Z

273

Design  

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

Design Design of a Multithreaded Barnes-Hut Algorithm for Multicore Clusters Technical Report Junchao Zhang and Babak Behzad Department of Computer Science, University of Illinois at Urbana-Champaign {jczhang, bbehza2}@illinois.edu Marc Snir Department of Computer Science, University of Illinois at Urbana-Champaign and MCS Division, Argonne National Laboratory snir@anl.gov Abstract We describe in this paper an implementation of the Barnes-Hut al- gorithm on multicore clusters. Based on a partitioned global ad- dress space (PGAS) library, the design integrates intranode mul- tithreading and internode one-sided communication, exemplifying a PGAS + X programming style. Within a node, the computation is decomposed into tasks (subtasks), and multitasking is used to hide network latency. We study the tradeoffs between locality in private caches and locality in shared caches

274

End-use load control for power system dynamic stability enhancement  

SciTech Connect (OSTI)

Faced with the prospect of increasing utilization of the transmission and distribution infrastructure without significant upgrade, the domestic electric power utility industry is investing heavily in technologies to improve network dynamic performance through a program loosely referred to as Flexible AC Transmission System (FACTS). Devices exploiting recent advances in power electronics are being installed in the power system to offset the need to construct new transmission lines. These devices collectively represent investment potential of several billion dollars over the next decade. A similar development, designed to curtail the peak loads and thus defer new transmission, distribution, and generation investment, falls under a category of technologies referred to as demand side management (DSM). A subset of broader conservation measures, DSM acts directly on the load to reduce peak consumption. DSM techniques include direct load control, in which a utility has the ability to curtail specific loads as conditions warrant. A novel approach has been conceived by Pacific Northwest National Laboratory (PNNL) to combine the objectives of FACTS and the technologies inherent in DSM to provide a distributed power system dynamic controller. This technology has the potential to dramatically offset major investments in FACTS devices by using direct load control to achieve dynamic stability objectives. The potential value of distributed versus centralized grid modulation has been examined by simulating the western power grid under extreme loading conditions. In these simulations, a scenario is analyzed in which active grid stabilization enables power imports into the southern California region to be increased several hundred megawatts beyond present limitations. Modeling results show distributed load control is up to 30 percent more effective than traditional centralized control schemes in achieving grid stability.

Dagle, J.E.; Winiarski, D.W.; Donnelly, M.K.

1997-02-01T23:59:59.000Z

275

Conceptual design selection and development of a latent-heat thermal-energy-storage subsystem for a saturated-steam solar receiver and load  

SciTech Connect (OSTI)

The following latent heat storage concepts are described and evaluated in comparison with each other and with an oil/rock sensible heat storage system: (1) passive tube intensive (shell-and-tube heat exchanger) with and without heat transfer enhanced by fins; (2) phase change material cans (or chubbs) with a biphenyl intermediate heat transfer fluid; (3) phase change material macroencapsulation in a containment tank full of tubes; (4) microencapsulation in a porous carrier; (5) direct contact heat exchange; and (6) systems using mechanical scrapers for removing solidified phase change material from container surfaces. A tube intensive system with heat transfer enhancement was selected, and the conceptual design and cost/performance estimates are given for it. A commercial scale unit is assessed, and design changes and corresponding costs are presented that would be required to make the system meet changed requirements. (LEW)

Not Available

1981-02-01T23:59:59.000Z

276

A review of potential turbine technology options for improving the off-design performance of direct coal-fired gas turbines in base load service  

SciTech Connect (OSTI)

The January, 1988 draft topical report, entitled An Assessment of Off-Design Particle Control Performance on Direct Coal-Fired Gas Turbine Systems'' (Ref.1.1), identified the need to assess potential trade-offs in turbine aerodynamic and thermodynamic design which may offer improvements in the performance, operational and maintenance characteristics of open-cycle, direct coal-fired, combustion gas turbines. In this second of a series of three topical reports, an assessment of the technical options posed by the above trade-offs is presented. The assessment is based on the current status of gas turbine technology. Several industry and university experts were contacted to contribute to the study. Literature sources and theoretical considerations are used only to provide additional background and insight to the technology involved.

Thomas, R.L.

1988-03-01T23:59:59.000Z

277

A review of potential turbine technology options for improving the off-design performance of direct coal-fired gas turbines in base load service. Second topical report  

SciTech Connect (OSTI)

The January, 1988 draft topical report, entitled ``An Assessment of Off-Design Particle Control Performance on Direct Coal-Fired Gas Turbine Systems`` [Ref.1.1], identified the need to assess potential trade-offs in turbine aerodynamic and thermodynamic design which may offer improvements in the performance, operational and maintenance characteristics of open-cycle, direct coal-fired, combustion gas turbines. In this second of a series of three topical reports, an assessment of the technical options posed by the above trade-offs is presented. The assessment is based on the current status of gas turbine technology. Several industry and university experts were contacted to contribute to the study. Literature sources and theoretical considerations are used only to provide additional background and insight to the technology involved.

Thomas, R.L.

1988-03-01T23:59:59.000Z

278

The Impact of Rate Design and Net Metering on the Bill Savings from Distributed PV for Residential Customers in California  

SciTech Connect (OSTI)

Net metering has become a widespread mechanism in the U.S. for supporting customer adoption of distributed photovoltaics (PV), but has faced challenges as PV installations grow to a larger share of generation in a number of states. This paper examines the value of the bill savings that customers receive under net metering, and the associated role of retail rate design, based on a sample of approximately two hundred residential customers of California's two largest electric utilities. We find that the bill savings per kWh of PV electricity generated varies by more than a factor of four across the customers in the sample, which is largely attributable to the inclining block structure of the utilities' residential retail rates. We also compare the bill savings under net metering to that received under three potential alternative compensation mechanisms, based on California's Market Price Referent (MPR). We find that net metering provides significantly greater bill savings than a full MPR-based feed-in tariff, but only modestly greater savings than alternative mechanisms under which hourly or monthly net excess generation is compensated at the MPR rate.

Energy and Resources Group, University of California, Berkeley; Darghouth, Naim R.; Barbose, Galen; Wiser, Ryan

2011-06-01T23:59:59.000Z

279

Networked Loads in the Distribution Grid  

E-Print Network [OSTI]

unknown) @2 Enphase Energy Solar Panel web access TESTower PLC BACnet Solar Panel @ Thompson UC Foundation15 (unknown) @13 Solar Panel @ Miller TES Train BCU CCS/BMS

Wang, Zhifang; Li, Xiao; Muthukumar, Vishak; Scaglione, Anna; Peisert, Sean; McParland, Chuck

2012-01-01T23:59:59.000Z

280

Software-Based Challenges of Developing the Future Distribution Grid  

E-Print Network [OSTI]

distribution  grid  can  provide  vital  information  for   reliability  distribution  grid   loads  in  order  to  ensure  grid  reliability.  

Stewart, Emma

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distribution design load" 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

Building Energy Software Tools Directory: CBE UFAD Cooling Design Tool  

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

CBE UFAD Cooling Design Tool CBE UFAD Cooling Design Tool CBE UFAD Cooling Design Tool logo The Center for the Built Environment's research team has developed a simplified, practical design procedure and associated software tool to determine cooling load requirements of underfloor air distribution (UFAD) systems. These are provided to improve the accuracy of airflow, thermal decay data, thermal comfort calculations, system design, and the operation of UFAD buildings. Screen Shots Keywords UFAD, underfloor, Cooling load calculator, cooling, stratification, thermal comfort Validation/Testing N/A Expertise Required Knowledge about cooling load calculation and UFAD. Users N/A Audience Practicing architects and engineers involved in the design, specification, and analysis of UFADs. Instructional tool in colleges and universities.

282

Seismic considerations in the evaluation of temporary loads  

SciTech Connect (OSTI)

Temporary loads in nuclear power facilities can result from a number of activities including special one time operating conditions, repair and upgrade conditions, and ALARA requirements for operation, inspection and maintenance. Many times evaluation of these loadings includes their consideration in conjunction with other design basis loadings such as normal loads and extreme event loads including earthquake loadings. At times this combination with design basis extreme loads, such as earthquake, results in predicted structural demands which exceed the design basis capacity. Many times a major contributor to this demand prediction is the earthquake loadings. Discussed in this paper are analytical methods, probabilistic considerations, and earthquake experienced based evaluations which can be applied to reduce the earthquake demand for short term temporary loadings.

Adams, T.M. [Stevenson and Associates, Cleveland, OH (United States); Stevenson, J.D.

1996-12-01T23:59:59.000Z

283

TOWARDS A POWER EFFICIENT PROGRAMMING MODEL FOR AD HOC In this paper, we describe the design and implementation of a distributed operating system for ad hoc net-  

E-Print Network [OSTI]

1 TOWARDS A POWER EFFICIENT PROGRAMMING MODEL FOR AD HOC NETWORKS Abstract In this paper, we describe the design and implementation of a distributed operating system for ad hoc net- works. The goal of our system is to extend total system lifetime for ad hoc networking applications through power

Sirer, Emin Gun

284

Enhancing Load Balancing in a Data-Parallel GSM Network Simulation through Application-Specific Information  

Science Journals Connector (OSTI)

Load balancing plays an important role in achieving ... application. In order to produce a proper load distribution and to minimize overhead, a load balancing algorithm needs to take into account characteristics ...

Pentti Huttunen; Jouni Ikonen; Jari Porras

2002-01-01T23:59:59.000Z

285

Strategy Guideline: Compact Air Distribution Systems  

SciTech Connect (OSTI)

This Strategy Guideline discusses the benefits and challenges of using a compact air distribution system to handle the reduced loads and reduced air volume needed to condition the space within an energy efficient home. Traditional systems sized by 'rule of thumb' (i.e., 1 ton of cooling per 400 ft2 of floor space) that 'wash' the exterior walls with conditioned air from floor registers cannot provide appropriate air mixing and moisture removal in low-load homes. A compact air distribution system locates the HVAC equipment centrally with shorter ducts run to interior walls, and ceiling supply outlets throw the air toward the exterior walls along the ceiling plane; alternatively, high sidewall supply outlets throw the air toward the exterior walls. Potential drawbacks include resistance from installing contractors or code officials who are unfamiliar with compact air distribution systems, as well as a lack of availability of low-cost high sidewall or ceiling supply outlets to meet the low air volumes with good throw characteristics. The decision criteria for a compact air distribution system must be determined early in the whole-house design process, considering both supply and return air design. However, careful installation of a compact air distribution system can result in lower material costs from smaller equipment, shorter duct runs, and fewer outlets; increased installation efficiencies, including ease of fitting the system into conditioned space; lower loads on a better balanced HVAC system, and overall improved energy efficiency of the home.

Burdick, A.

2013-06-01T23:59:59.000Z

286

S-Band Loads for SLAC Linac  

SciTech Connect (OSTI)

The S-Band loads on the current SLAC linac RF system were designed, in some cases, 40+ years ago to terminate 2-3 MW peak power into a thin layer of coated Kanthal material as the high power absorber [1]. The technology of the load design was based on a flame-sprayed Kanthal wire method onto a base material. During SLAC linac upgrades, the 24 MW peak klystrons were replaced by 5045 klystrons with 65+ MW peak output power. Additionally, SLED cavities were introduced and as a result, the peak power in the current RF setup has increased up to 240 MW peak. The problem of reliable RF peak power termination and RF load lifetime required a careful study and adequate solution. Results of our studies and three designs of S-Band RF load for the present SLAC RF linac system is discussed. These designs are based on the use of low conductivity materials.

Krasnykh, A.; Decker, F.-J.; /SLAC; LeClair, R.; /INTA Technologies, Santa Clara

2012-08-28T23:59:59.000Z

287

Peak load management: Potential options  

SciTech Connect (OSTI)

This report reviews options that may be alternatives to transmission construction (ATT) applicable both generally and at specific locations in the service area of the Bonneville Power Administration (BPA). Some of these options have potential as specific alternatives to the Shelton-Fairmount 230-kV Reinforcement Project, which is the focus of this study. A listing of 31 peak load management (PLM) options is included. Estimated costs and normalized hourly load shapes, corresponding to the respective base load and controlled load cases, are considered for 15 of the above options. A summary page is presented for each of these options, grouped with respect to its applicability in the residential, commercial, industrial, and agricultural sectors. The report contains comments on PLM measures for which load shape management characteristics are not yet available. These comments address the potential relevance of the options and the possible difficulty that may be encountered in characterizing their value should be of interest in this investigation. The report also identifies options that could improve the efficiency of the three customer utility distribution systems supplied by the Shelton-Fairmount Reinforcement Project. Potential cogeneration options in the Olympic Peninsula are also discussed. These discussions focus on the options that appear to be most promising on the Olympic Peninsula. Finally, a short list of options is recommended for investigation in the next phase of this study. 9 refs., 24 tabs.

Englin, J.E.; De Steese, J.G.; Schultz, R.W.; Kellogg, M.A.

1989-10-01T23:59:59.000Z

288

Electromagnetic Analysis For The Design Of ITER Diagnostic Port Plugs During Plasma Disruptions  

SciTech Connect (OSTI)

ITER diagnostic port plugs perform many functions including structural support of diagnostic systems under high electromagnetic loads while allowing for diagnostic access to plasma. The design of diagnotic equatorial port plugs (EPP) are largely driven by electromagnetic loads and associate response of EPP structure during plasma disruptions and VDEs. This paper summarizes results of transient electromagnetic analysis using Opera 3d in support of the design activities for ITER diagnostic EPP. A complete distribution of disruption loads on the Diagnostic First Walls (DFWs). Diagnostic Shield Modules (DSMs) and the EPP structure, as well as impact on the system design integration due to electrical contact among various EPP structural components are discussed.

Zhai, Y

2014-03-03T23:59:59.000Z

289

Sensitivity of extreme hydroelastic load effects to changes in ship hull stiffness and structural damping  

Science Journals Connector (OSTI)

A new hybrid method for the time-domain nonlinear simulation of the hydroelastic load effects and the peak over threshold (POT) method for the calculation of the short-term extreme responses are briefly described and applied to a flexible SL-7 class containership and a flexible liquefied natural gas (LNG) ship. Three stiffness levels, three stiffness distributions and three modal damping ratios are used to study the influence of the hull flexibility and structural damping on the short-term prediction of extreme vertical hydroelastic load effects. The results give justification for some simplified treatment of the first vertical flexible mode in early design stage when structural details are not available.

MingKang Wu; Torgeir Moan

2007-01-01T23:59:59.000Z

290

An energy-efficient adaptive clustering algorithm with load balancing for wireless sensor network  

Science Journals Connector (OSTI)

Maximisation of network lifetime is the issue of prime importance in Wireless Sensor Network (WSN). An energy-efficient clustering algorithm with load balancing can achieve this challenging goal. We propose Density-based Dynamic Clustering (DDC) algorithm for clustering and cluster head election mechanism with the use of independence set. Furthermore, a distributed algorithm (DISD - Distributed Independence Set Discovery) is designed for cluster head election in O(1) complexity per sensor node. In this, we dynamically find an optimal sensor cover to dominate maximum sensors within a cluster, therefore forming an InDependence Set (IDS). Only the members of IDS are allowed to participate in the cluster head selection (rotation), thereby establishing load balancing and energy management. Our model is designed for dual modes: low- and high-traffic session. According to the flow of packets, the sleep management technique is modified. Network simulator is used for the simulation of our proposed algorithms.

Buddha Singh; D.K. Lobiyal

2012-01-01T23:59:59.000Z

291

APS high heat load monochromator  

SciTech Connect (OSTI)

This document contains the design specifications of the APS high heat load (HHL) monochromator and associated accessories as of February 1993. It should be noted that work is continuing on many parts of the monochromator including the mechanical design, crystal cooling designs, etc. Where appropriate, we have tried to add supporting documentation, references to published papers, and calculations from which we based our decisions. The underlying philosophy behind performance specifications of this monochromator was to fabricate a device that would be useful to as many APS users as possible, that is, the design should be as generic as possible. In other words, we believe that this design will be capable of operating on both bending magnet and ID beamlines (with the appropriate changes to the cooling and crystals) with both flat and inclined crystal geometries and with a variety of coolants. It was strongly felt that this monochromator should have good energy scanning capabilities over the classical energy range of about 4 to 20 keywith Si (111) crystals. For this reason, a design incorporating one rotation stage to drive both the first and second crystals was considered most promising. Separate rotary stages for the first and second crystals can sometimes provide more flexibility in their capacities to carry heavy loads (for heavily cooled first crystals or sagittal benders of second crystals), but their tuning capabilities were considered inferior to the single axis approach.

Lee, W.K.; Mills, D.

1993-02-01T23:59:59.000Z

292

Load sensing system  

DOE Patents [OSTI]

A load sensing system inexpensively monitors the weight and temperature of stored nuclear material for long periods of time in widely variable environments. The system can include an electrostatic load cell that encodes weight and temperature into a digital signal which is sent to a remote monitor via a coaxial cable. The same cable is used to supply the load cell with power. When multiple load cells are used, vast

Sohns, Carl W. (Oak Ridge, TN); Nodine, Robert N. (Knoxville, TN); Wallace, Steven Allen (Knoxville, TN)

1999-01-01T23:59:59.000Z

293

Dynamic versus Static Load Balancing in a Pipeline Computation \\Lambda  

E-Print Network [OSTI]

­ ber of data sets is pipelined through a series of tasks and load balancing is performed­ mance and fully utilize the power of parallel machines the load of the computations must be distributedDynamic versus Static Load Balancing in a Pipeline Computation \\Lambda Anna Brunstrom brunstro

Simha, Rahul

294

Cooling airflow design tool for displacement ventilation.  

E-Print Network [OSTI]

Overhead Air Distribution (Mixed)  Design  Temperature  Tto “Design Temperature,” the “Overhead Air Distribution”T d   Design Control  Strategy  Zone Air  Distribution 

Schiavon, Stefano; Bauman, Fred

2009-01-01T23:59:59.000Z

295

Loading margin Stable operating  

E-Print Network [OSTI]

Linear approximation at p1 Actual loading margin Loadingmargin Parameter p p1 p2 p3 IEEE Transactions collapse. Linear and quadratic estimates to the variation of the loading margin with respect to any sys power support, wheeling, load model param- eters, line susceptance, and generator dispatch. The accuracy

296

A proposed design and fabrication of lenses and mirrors from a set of spherical rings that produce desired energy distributions for solar energy applications  

SciTech Connect (OSTI)

The amount of energy contained in the solar aureole affects the performance of solar systems. Solar optical systems are, therefore, dependent on the characteristics of the shape of the sun in a specific geographical location. For this reason, the present study proposes the design of solid lenses and mirrors modelled from a set of concentric spherical rings that give a desired distribution of energy in the focal plane. One hundred spherical rings, whose optimum curvature radius values were calculated by Genetic Algorithms, were employed in the modelling process. The study also proposes a design of a petal tool to polish lens and mirror surfaces. (author)

Gonzalez-Garcia, Jorge [Universidad Tecnologica de la Mixteca UTM, Km 2.5 Carretera a Acatlima, Huajuapan de Leon Oaxaca, C. P. 69000 (Mexico); Facultad de Ciencias Fisico-Matematicas, Benemerita Universidad Autonoma de Puebla BUAP, Apartado Postal 1152, 72570 Puebla (Mexico); Vazquez-Montiel, Sergio [Instituto de Optica, Instituto Nacional de Astrofisica, Optica y Electronica INAOE, Santa Maria, Tonantzintla Puebla, Apartado Postal 51 y 216 (Mexico); Santiago-Alvarado, Agustin [Universidad Tecnologica de la Mixteca UTM, Km 2.5 Carretera a Acatlima, Huajuapan de Leon Oaxaca, C. P. 69000 (Mexico); Instituto de Optica, Instituto Nacional de Astrofisica, Optica y Electronica INAOE, Santa Maria, Tonantzintla Puebla, Apartado Postal 51 y 216 (Mexico); Cordero-Davila, Alberto [Facultad de Ciencias Fisico-Matematicas, Benemerita Universidad Autonoma de Puebla BUAP, Apartado Postal 1152, 72570 Puebla (Mexico); Castro-Gonzalez, Graciela [Universidad Tecnologica de la Mixteca UTM, Km 2.5 Carretera a Acatlima, Huajuapan de Leon Oaxaca, C. P. 69000 (Mexico)

2009-12-15T23:59:59.000Z

297

PEV-based P-Q Control in Line Distribution Networks with High Requirement for Reactive Power Compensation  

E-Print Network [OSTI]

impact of distribution level wind turbines. Our design is based on a nonlinear power flow analysis of wind turbines to support their induction load to avoid generator voltage excursion. Note that, although-sized wind turbines in large wind farms [1], the smaller wind turbines that are used at the distribution

Huang, Jianwei

298

Wireless Distributed Architecture for Therapeutic Functional Electrical Stimulation : a technology to design network-based muscle control  

E-Print Network [OSTI]

Wireless Distributed Architecture for Therapeutic Functional Electrical Stimulation : a technology Stimulation architecture based on a wireless network, for therapeutic training of disabled patients applications with external FES, in a clinical context. In a wireless network- based control, the variable delay

Paris-Sud XI, Université de

299

Property:Distributed Generation System Power Application | Open Energy  

Open Energy Info (EERE)

Application Application Jump to: navigation, search This is a property of type Page. Pages using the property "Distributed Generation System Power Application" Showing 21 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Based Load + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Based Load + Distributed Generation Study/Arrow Linen + Based Load + Distributed Generation Study/Dakota Station (Minnegasco) + Based Load +, Backup + Distributed Generation Study/Elgin Community College + Based Load +, Backup + Distributed Generation Study/Emerling Farm + Based Load + Distributed Generation Study/Floyd Bennett + Based Load + Distributed Generation Study/Harbec Plastics + Based Load + Distributed Generation Study/Hudson Valley Community College + Based Load +

300

Dehumidification and cooling loads from ventilation air  

SciTech Connect (OSTI)

The importance of controlling humidity in buildings is cause for concern, in part, because of indoor air quality problems associated with excess moisture in air-conditioning systems. But more universally, the need for ventilation air has forced HVAC equipment (originally optimized for high efficiency in removing sensible heat loads) to remove high moisture loads. To assist cooling equipment and meet the challenge of larger ventilation loads, several technologies have succeeded in commercial buildings. Newer technologies such as subcool/reheat and heat pipe reheat show promise. These increase latent capacity of cooling-based systems by reducing their sensible capacity. Also, desiccant wheels have traditionally provided deeper-drying capacity by using thermal energy in place of electrical power to remove the latent load. Regardless of what mix of technologies is best for a particular application, there is a need for a more effective way of thinking about the cooling loads created by ventilation air. It is clear from the literature that all-too-frequently, HVAC systems do not perform well unless the ventilation air loads have been effectively addressed at the original design stage. This article proposes an engineering shorthand, an annual load index for ventilation air. This index will aid in the complex process of improving the ability of HVAC systems to deal efficiently with the amount of fresh air the industry has deemed useful for maintaining comfort in buildings. Examination of typical behavior of weather shows that latent loads usually exceed sensible loads in ventilation air by at least 3:1 and often as much as 8:1. A designer can use the engineering shorthand indexes presented to quickly assess the importance of this fact for a given system design. To size those components after they are selected, the designer can refer to Chapter 24 of the 1997 ASHRAE Handbook--Fundamentals, which includes separate values for peak moisture and peak temperature.

Harriman, L.G. III [Mason-Grant, Portsmouth, NH (United States); Plager, D. [Quantitative Decision Support, Portsmouth, NH (United States); Kosar, D. [Gas Research Inst., Chicago, IL (United States)

1997-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "distribution design load" 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

Cooling load design tool for UFAD systems.  

E-Print Network [OSTI]

ratio of time between Fan Coil Units Perimeter Zone Linearand underfloor fan coil units. cooling contribution of

Bauman, Fred; Schiavon, Stefano; Webster, Tom; Lee, Kwang Ho

2010-01-01T23:59:59.000Z

302

Design Enablement and Design-Centric Assessment of Future Semiconductor Technologies  

E-Print Network [OSTI]

utilization. Feature Distribution and Design-Rule Violationserror distribution), and benchmark designs (specified asGiven the distribution of features, design-rule violations

Abou Ghaida, Rani

2012-01-01T23:59:59.000Z

303

Examining Repository Loading Options to Expand Yucca Mountain Repository Capacity  

SciTech Connect (OSTI)

Siting a high level nuclear waste repository entails high economic, social, and political costs. Given the difficulty in siting the Yucca Mountain repository and the already identified need for additional capacity, the concept of expanding the capacity of the Yucca Mountain repository is of significant interest to the nuclear industry and the Department of Energy (DOE). As the capacity of the repository is limited by the decay heat inventory of the spent nuclear fuel in relation to the thermal design limits, expanding the capacity requires appropriate schemes for decay heat and spent fuel loading management. The current Yucca Mountain repository is based on a single level, fixed drift spacing design for a fixed area or footprint. Studies performed to date investigating the capacity of Yucca Mountain often assume that the loading of spent fuel is uniform throughout the repository and use the concept of a linear loading or areal power density (APD). However, use of linear loading or APD can be problematic with the various cooling times involved. The temperature within the repository at any point in time is controlled by the integral of the heat deposited in the repository. The integral of the decay heat varies as a function of pre-loading cooling periods even for a fixed linear loading. A meaningful repository capacity analysis requires the use of a computer model that describes the time-dependent temperature distributions of the rock from the dissipation of the heat through the repository system. If variations from the current Yucca Mountain repository design were to be considered, expanding the capacity of the repository would be pursued in several ways including: (1) increase the footprint size; (2) implement multiple-levels in the repository for the given footprint; (3) allow the drift distance to vary within thermal limits; and, (4) allow non-uniform loading of wastes into the drifts within thermal limits. Options (1) and (2) have been investigated by other researchers. This paper investigates options (3) and (4) for possible expansion of the Yucca Mountain repository capacity. To support the work, a thermal analysis model was needed to describe the temperature changes in the rock around the waste packages against the thermal design limits as a function of spent fuel characteristics and composition. Under the high temperature operating mode (HTOM), the relevant thermal design limits are: (1) the rock temperature midway between adjacent drifts must remain below the local boiling point (96 deg. C); and (2) the rock temperature at drift walls must remain below 200 deg. C. As the work involves a large number of calculations, examining the compliance within thermal design limits, the capability to perform efficient mountain-scale heat-transfer analyses was necessary. A related topic of importance in this investigation was also the effect of uncertainty. As the modeling exercise relies on the use of computational models, uncertainties are unavoidable and understanding the uncertainty in the interpretation of the results is important. The concept of variable drift spacing and variable drift thermal loading was investigated with respect to possible capacity expansion of the Yucca Mountain repository. Also, a computer model was developed for efficient repository heat transfer calculations and sensitivity and uncertainty analyses were performed to identify key parameters and to estimate the uncertainty in the results and understand how the repository capacity estimation would be affected by the uncertainty. (authors)

Li, Jun; Nicholson, Mark; Proctor, W. Cyrus; Yim, Man-Sung; McNelis, David [Department of Nuclear Engineering, North Carolina State University (United States)

2007-07-01T23:59:59.000Z

304

Long term distribution network planning considering urbanity uncertainties  

Science Journals Connector (OSTI)

This paper addresses the problem of long term distribution network planning under urbanity uncertainties. Unpredictable urbanity plans are expected facts in developing/under developed countries. This type of uncertainties make it difficult to implement designed network in the future and leads to increasing operational costs including loss and outage costs. In this paper we presented a novel approach for distribution network planning which in addition of eliminating harmful effects of urbanity uncertainties, leads to easy management and operation of resulted network. In this approach several points of study region with high accessibility are selected as candidate embranchment points and optimal connection configuration of load points to the embranchment points is determined by genetic algorithm considering investment, loss and also customer interruption costs. Afterward, final structure of network is designed by branch exchange method considering the embranchment points as representative to load points in their service area. The performance of the proposed approach is assessed on a test distribution network.

Javad Salehi; Mahmoud-Reza Haghifam

2012-01-01T23:59:59.000Z

305

Load regulating expansion fixture  

DOE Patents [OSTI]

A free standing self contained device for bonding ultra thin metallic films, such as 0.001 inch beryllium foils is disclosed. The device will regulate to a predetermined load for solid state bonding when heated to a bonding temperature. The device includes a load regulating feature, whereby the expansion stresses generated for bonding are regulated and self adjusting. The load regulator comprises a pair of friction isolators with a plurality of annealed copper members located therebetween. The device, with the load regulator, will adjust to and maintain a stress level needed to successfully and economically complete a leak tight bond without damaging thin foils or other delicate components. 1 fig.

Wagner, L.M.; Strum, M.J.

1998-12-15T23:59:59.000Z

306

Load regulating expansion fixture  

DOE Patents [OSTI]

A free standing self contained device for bonding ultra thin metallic films, such as 0.001 inch beryllium foils. The device will regulate to a predetermined load for solid state bonding when heated to a bonding temperature. The device includes a load regulating feature, whereby the expansion stresses generated for bonding are regulated and self adjusting. The load regulator comprises a pair of friction isolators with a plurality of annealed copper members located therebetween. The device, with the load regulator, will adjust to and maintain a stress level needed to successfully and economically complete a leak tight bond without damaging thin foils or other delicate components.

Wagner, Lawrence M. (San Jose, CA); Strum, Michael J. (San Jose, CA)

1998-01-01T23:59:59.000Z

307

Load sensing system  

DOE Patents [OSTI]

A load sensing system inexpensively monitors the weight and temperature of stored nuclear material for long periods of time in widely variable environments. The system can include an electrostatic load cell that encodes weight and temperature into a digital signal which is sent to a remote monitor via a coaxial cable. The same cable is used to supply the load cell with power. When multiple load cells are used, vast inventories of stored nuclear material can be continuously monitored and inventoried of minimal cost. 4 figs.

Sohns, C.W.; Nodine, R.N.; Wallace, S.A.

1999-05-04T23:59:59.000Z

308

Integrated Transmission and Distribution Control  

SciTech Connect (OSTI)

Distributed, generation, demand response, distributed storage, smart appliances, electric vehicles and renewable energy resources are expected to play a key part in the transformation of the American power system. Control, coordination and compensation of these smart grid assets are inherently interlinked. Advanced control strategies to warrant large-scale penetration of distributed smart grid assets do not currently exist. While many of the smart grid technologies proposed involve assets being deployed at the distribution level, most of the significant benefits accrue at the transmission level. The development of advanced smart grid simulation tools, such as GridLAB-D, has led to a dramatic improvement in the models of smart grid assets available for design and evaluation of smart grid technology. However, one of the main challenges to quantifying the benefits of smart grid assets at the transmission level is the lack of tools and framework for integrating transmission and distribution technologies into a single simulation environment. Furthermore, given the size and complexity of the distribution system, it is crucial to be able to represent the behavior of distributed smart grid assets using reduced-order controllable models and to analyze their impacts on the bulk power system in terms of stability and reliability. The objectives of the project were to: • Develop a simulation environment for integrating transmission and distribution control, • Construct reduced-order controllable models for smart grid assets at the distribution level, • Design and validate closed-loop control strategies for distributed smart grid assets, and • Demonstrate impact of integrating thousands of smart grid assets under closed-loop control demand response strategies on the transmission system. More specifically, GridLAB-D, a distribution system tool, and PowerWorld, a transmission planning tool, are integrated into a single simulation environment. The integrated environment allows the load flow interactions between the bulk power system and end-use loads to be explicitly modeled. Power system interactions are modeled down to time intervals as short as 1-second. Another practical issue is that the size and complexity of typical distribution systems makes direct integration with transmission models computationally intractable. Hence, the focus of the next main task is to develop reduced-order controllable models for some of the smart grid assets. In particular, HVAC units, which are a type of Thermostatically Controlled Loads (TCLs), are considered. The reduced-order modeling approach can be extended to other smart grid assets, like water heaters, PVs and PHEVs. Closed-loop control strategies are designed for a population of HVAC units under realistic conditions. The proposed load controller is fully responsive and achieves the control objective without sacrificing the end-use performance. Finally, using the T&D simulation platform, the benefits to the bulk power system are demonstrated by controlling smart grid assets under different demand response closed-loop control strategies.

Kalsi, Karanjit; Fuller, Jason C.; Tuffner, Francis K.; Lian, Jianming; Zhang, Wei; Marinovici, Laurentiu D.; Fisher, Andrew R.; Chassin, Forrest S.; Hauer, Matthew L.

2013-01-16T23:59:59.000Z

309

Combi Systems for Low Load homes  

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

text styles text styles Combi Systems for Low Load Homes Center for Energy and Environment, NorthernSTAR, Ben Schoenbauer * Low load homes are more common than ever. * Typical space heating and DHW equipment have capacities larger than necessary * A single heating plant could provide high efficiency heat at lower costs, increased durability and improved combustion safety Context Technical Approach * A condensing water heater and hydronic air handler will used to provide space and water heating loads in almost 300 weatherized homes. * System specifications, sizing, and installation optimization guidelines were all developed. * Contractor capability was developed in MN market, but may not be developed in all local. 4 Recommended Guidance * Determine peak load on system: - Space heating design load (ie 40,000 Btu/hr)

310

LO Generation and Distribution for 60GHz Phased Array Transceivers  

E-Print Network [OSTI]

goal of the LO distribution network design was minimizing7. Given a distribution impedance, Z o , design an input5. LO DISTRIBUTION Mixer LO Buffer Design Methodology The

Marcu, Cristian

2011-01-01T23:59:59.000Z

311

ANALYSIS AND APPLICATION OF INDUCTANCE IN CLOCK DISTRIBUTION NETWORKS  

E-Print Network [OSTI]

Distribution Network Background 2.1 Clock Network DesignClock distribution techniques for low-EMI design. Springerclock distribution in high-performance designs due to their

Hu, Xuchu

2012-01-01T23:59:59.000Z

312

Mean and peak wind loads on heliostats  

SciTech Connect (OSTI)

Mean and peak wind loads on flat rectangular or circular heliostats were measured on models in a boundary layer wind tunnel which included an atmospheric surface layer simulation. Horizontal and vertical forces, moments about horizontal axes at the ground level and at the centerline of the heliostat, and the moment about the vertical axis through the heliostat center were measured. Results showed that loads are higher than predicted from results obtained in a uniform, low-turbulence flow due to the presence of turbulence. Reduced wind loads were demonstrated for heliostats within a field of heliostats and upper bound curves were developed to provide preliminary design coefficients.

Peterka, J.A.; Tan, Z.; Cermak, J.E.; Bienkiewicz, B.

1989-05-01T23:59:59.000Z

313

Predicting pipeline frost load  

SciTech Connect (OSTI)

A study was undertaken to find a formula for predicting the additional load imposed on underground pipelines by soil freezing. The authors conclude that a modified Boussinesq equation can be used to assess this load. Results also showed that frost affects the modulus of soil reaction and therefore the induced stress in flexible pipe.

Fielding, M.B.; Cohen, A.

1988-11-01T23:59:59.000Z

314

load | OpenEI  

Open Energy Info (EERE)

load load Dataset Summary Description This dataset contains hourly load profile data for 16 commercial building types (based off the DOE commercial reference building models) and residential buildings (based off the Building America House Simulation Protocols). This dataset also includes the Residential Energy Consumption Survey (RECS) for statistical references of building types by location. Source Commercial and Residential Reference Building Models Date Released April 18th, 2013 (9 months ago) Date Updated July 02nd, 2013 (7 months ago) Keywords building building demand building load Commercial data demand Energy Consumption energy data hourly kWh load profiles Residential Data Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Annually

315

Water management studies in PEM fuel cells, Part I: Fuel cell design and in situ water distributions  

E-Print Network [OSTI]

schematically in Fig. 1, a fuel cell supplies two reactant streams, consisting of a fuel (hydrogen, H2Water management studies in PEM fuel cells, Part I: Fuel cell design and in situ water. Trabolda, * a General Motors Fuel Cell Laboratory, 10 Carriage Street, Honeoye Falls, New York, USA b

Kandlikar, Satish

316

Comfort-constrained distributed heat pump management  

E-Print Network [OSTI]

This paper introduces the design of a demand response network control strategy aimed at thermostatically controlled electric heating and cooling systems in buildings. The method relies on the use of programmable communicating thermostats, which are able to provide important component-level state variables to a system-level central controller. This information can be used to build power density distribution functions for the aggregate heat pump load. These functions lay out the fundamental basis for the methodology by allowing for consideration of customer-level constraints within the system-level decision making process. The proposed strategy is then implemented in a computational model to simulate a distribution of buildings, where the aggregate heat pump load is managed to provide the regulation services needed to successfully integrate wind power generators. Increased exploitation of wind resources will place similarly themed ancillary services in high-demand, traditionally provided by dispatchable energy ...

Parkinson, Simon; Crawford, Curran; Djilali, Ned

2011-01-01T23:59:59.000Z

317

Definition: Base Load | Open Energy Information  

Open Energy Info (EERE)

Load Load Jump to: navigation, search Dictionary.png Base Load The minimum amount of electric power delivered or required over a given period at a constant rate.[1] View on Wikipedia Wikipedia Definition Baseload (also base load, or baseload demand) is the minimum amount of power that a utility or distribution company must make available to its customers, or the amount of power required to meet minimum demands based on reasonable expectations of customer requirements. Baseload values typically vary from hour to hour in most commercial and industrial areas. Related Terms electricity generation, power, smart grid References ↑ Glossary of Terms Used in Reliability Standards An in Like Like You like this.Sign Up to see what your friends like. line Glossary Definition Retrieved from

318

Demand Response Architectures and Load Management Algorithms for Energy-Efficient Power Grids: A Survey  

Science Journals Connector (OSTI)

A power grid has four segments: generation, transmission, distribution and demand. Until now, utilities have been focusing on streamlining their generation, transmission and distribution operations for energy efficiency. While loads have traditionally ... Keywords: Smart grid, energy efficiency, demand-side load management, demand response, load shifting

Yee Wei Law; Tansu Alpcan; Vincent C. S. Lee; Anthony Lo; Slaven Marusic; Marimuthu Palaniswami

2012-11-01T23:59:59.000Z

319

HLW Glass Waste Loadings  

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

HLW HLW Glass Waste Loadings Ian L. Pegg Vitreous State Laboratory The Catholic University of America Washington, DC Overview Overview  Vitrification - general background  Joule heated ceramic melter (JHCM) technology  Factors affecting waste loadings  Waste loading requirements and projections  WTP DWPF  DWPF  Yucca Mountain License Application requirements on waste loading  Summary Vitrification  Immobilization of waste by conversion into a glass  Internationally accepted treatment for HLW  Why glass?  Amorphous material - able to incorporate a wide spectrum of elements over wide ranges of composition; resistant to radiation damage  Long-term durability - natural analogs Relatively simple process - amenable to nuclearization at large  Relatively simple process - amenable to nuclearization at large scale  There

320

Buildings Stock Load Control  

E-Print Network [OSTI]

: An assembly of the various blocks of the library of simbad and simulink permit to model building. Finally the last part prensents the study results: Graphs and tables to see the load shedding strategies impacts....

Joutey, H. A.; Vaezi-Nejad, H.; Clemoncon, B.; Rosenstein, F.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distribution design load" 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

Other-Cell-Interference Factor Distribution Model in Downlink WCDMA Systems  

Science Journals Connector (OSTI)

Interference performance is among the most important issues especially in WCDMA cellular networks planning coverage and capacity. F-factor has been introduced in previous works to model the interference in WCDMA downlink ... Keywords: F-factor, WCDMA, design methodology, distribution function, f-parameter, interference, interfering tiers, log-normal correlated shadow, uniform and non-uniform traffic-load cells

Anis Masmoudi; Sami Tabbane

2006-02-01T23:59:59.000Z

322

Composite Load Model Evaluation  

SciTech Connect (OSTI)

The WECC load modeling task force has dedicated its effort in the past few years to develop a composite load model that can represent behaviors of different end-user components. The modeling structure of the composite load model is recommended by the WECC load modeling task force. GE Energy has implemented this composite load model with a new function CMPLDW in its power system simulation software package, PSLF. For the last several years, Bonneville Power Administration (BPA) has taken the lead and collaborated with GE Energy to develop the new composite load model. Pacific Northwest National Laboratory (PNNL) and BPA joint force and conducted the evaluation of the CMPLDW and test its parameter settings to make sure that: • the model initializes properly, • all the parameter settings are functioning, and • the simulation results are as expected. The PNNL effort focused on testing the CMPLDW in a 4-bus system. An exhaustive testing on each parameter setting has been performed to guarantee each setting works. This report is a summary of the PNNL testing results and conclusions.

Lu, Ning; Qiao, Hong (Amy)

2007-09-30T23:59:59.000Z

323

Structural Design of a Horizontal-Axis Tidal Current Turbine Composite Blade  

SciTech Connect (OSTI)

This paper describes the structural design of a tidal composite blade. The structural design is preceded by two steps: hydrodynamic design and determination of extreme loads. The hydrodynamic design provides the chord and twist distributions along the blade length that result in optimal performance of the tidal turbine over its lifetime. The extreme loads, i.e. the extreme flap and edgewise loads that the blade would likely encounter over its lifetime, are associated with extreme tidal flow conditions and are obtained using a computational fluid dynamics (CFD) software. Given the blade external shape and the extreme loads, we use a laminate-theory-based structural design to determine the optimal layout of composite laminas such that the ultimate-strength and buckling-resistance criteria are satisfied at all points in the blade. The structural design approach allows for arbitrary specification of the chord, twist, and airfoil geometry along the blade and an arbitrary number of shear webs. In addition, certain fabrication criteria are imposed, for example, each composite laminate must be an integral multiple of its constituent ply thickness. In the present effort, the structural design uses only static extreme loads; dynamic-loads-based fatigue design will be addressed in the future. Following the blade design, we compute the distributed structural properties, i.e. flap stiffness, edgewise stiffness, torsion stiffness, mass, moments of inertia, elastic-axis offset, and center-of-mass offset along the blade. Such properties are required by hydro-elastic codes to model the tidal current turbine and to perform modal, stability, loads, and response analyses.

Bir, G. S.; Lawson, M. J.; Li, Y.

2011-10-01T23:59:59.000Z

324

Load Monitoring CEC/LMTF Load Research Program  

SciTech Connect (OSTI)

This white paper addresses the needs, options, current practices of load monitoring. Recommendations on load monitoring applications and future directions are also presented.

Huang, Zhenyu; Lesieutre, B.; Yang, Steve; Ellis, A.; Meklin, A.; Wong, B.; Gaikwad, A.; Brooks, D.; Hammerstrom, Donald J.; Phillips, John; Kosterev, Dmitry; Hoffman, M.; Ciniglio, O.; Hartwell, R.; Pourbeik, P.; Maitra, A.; Lu, Ning

2007-11-30T23:59:59.000Z

325

Cooperative Fault Tolerant Distributed Computing  

SciTech Connect (OSTI)

HARNESS was proposed as a system that combined the best of emerging technologies found in current distributed computing research and commercial products into a very flexible, dynamically adaptable framework that could be used by applications to allow them to evolve and better handle their execution environment. The HARNESS system was designed using the considerable experience from previous projects such as PVM, MPI, IceT and Cumulvs. As such, the system was designed to avoid any of the common problems found with using these current systems, such as no single point of failure, ability to survive machine, node and software failures. Additional features included improved inter-component connectivity, with full support for dynamic down loading of addition components at run-time thus reducing the stress on application developers to build in all the libraries they need in advance.

Fagg, Graham E.

2006-03-15T23:59:59.000Z

326

Design of a Particle Shadowgraph Velocimetry and Size (PSVS) System to Determine Particle Size and Density Distributions (PSDD) in Hanford Nuclear Tank Wastes  

SciTech Connect (OSTI)

An accurate particle size and density distribution (PSDD) for nuclear tank wastes is an essential piece of information that helps determine the engineering requirements for a host of waste management unit operations including tank mixing, pipeline transport, and filtration. The existing approach has involved a laborious approach in which individual particles are identified using SEM/XRD methods and the density of these materials obtained from the technical literature. Further, some methods simply approximate individual particle densities by assuming chemical composition rather than actual measurements of particle density. A particle shadowgraph velocimetry and size (PSVS) system has been designed to obtain representative PSDDs for a broad range of Hanford tank waste materials existing as both individual particles and agglomerates. The PSVS utilizes optical hardware, a temperature controlled settling column, and particle introduction chamber to accurately and reproducibly obtain images of settling particles. Image analysis software then provides a highly accurate determination of both particle terminal velocity and equivalent spherical particle diameter. The particle/agglomerate density is then calculated from Newton’s terminal settling theory. The PSVS was designed to accurately image particle/agglomerate sizes between 10-1000µm and particle/agglomerate densities ranging from 1.4-11.5g/cm3 where the maximum terminal velocity does not exceed 20cm/s. Preliminary testing was completed and results were in good agreement with terminal settling theory. Recent results of this method development are presented, as well as experimental design, and future proposed work.

Fountain, Matthew S.; Blanchard, Jeremy; Erikson, Rebecca L.; Kurath, Dean E.; Howe, Daniel T.; Adkins, Harold E.; Jenks, Jeromy WJ

2012-01-10T23:59:59.000Z

327

The influence of hospital ward design on resilience to heat waves: an exploration using distributed lag models  

Science Journals Connector (OSTI)

Abstract Distributed lag models (DLMs) to predict future internal temperatures have been developed using the hourly weather data and the internal temperatures recorded in eleven spaces on two UK National Health Service (NHS) hospital sites. The ward spaces were in five buildings of very different type and age. In all the DLMs, the best prediction of internal temperature was obtained using three exogenous drivers, previous internal temperature, external temperature and solar radiation. \\{DLMs\\} were sensitive to the buildings’ differences in orientation, thermal mass and shading and were validated by comparing the predictions with the internal temperatures recorded in the summer of 2012. The results were encouraging, with both modelled and recorded data showing good correlation. To understand the resilience of the spaces to heat waves, the \\{DLMs\\} were fed with weather data recorded during the hot summer of 2006. The Nightingale wards and traditional masonry wards showed remarkable resilience to the hot weather. In contrast, light-weight modular buildings were predicted to overheat dangerously. By recording internal temperatures for a short period, \\{DLMs\\} might be created that can forecast future temperatures in many other types of naturally ventilated or mixed-mode buildings as a means of assessing overheating risk.

C.R. Iddon; T.C. Mills; R. Giridharan; K.J. Lomas

2014-01-01T23:59:59.000Z

328

Distributed Smart Grid Asset Control Strategies for Providing Ancillary Services  

SciTech Connect (OSTI)

With large-scale plans to integrate renewable generation driven mainly by state-level renewable portfolio requirements, more resources will be needed to compensate for the uncertainty and variability associated with intermittent generation resources. Distributed assets can be used to mitigate the concerns associated with renewable energy resources and to keep costs down. Under such conditions, performing primary frequency control using only supply-side resources becomes not only prohibitively expensive but also technically difficult. It is therefore important to explore how a sufficient proportion of the loads could assume a routine role in primary frequency control to maintain the stability of the system at an acceptable cost. The main objective of this project is to develop a novel hierarchical distributed framework for frequency based load control. The framework involves two decision layers. The top decision layer determines the optimal gain for aggregated loads for each load bus. The gains are computed using decentralized robust control methods, and will be broadcast to the corresponding participating loads every control period. The second layer consists of a large number of heterogeneous devices, which switch probabilistically during contingencies so that aggregated power change matches the desired amount according to the most recently received gains. The simulation results show great potential to enable systematic design of demand-side primary frequency control with stability guarantees on the overall power system. The proposed design systematically accounts for the interactions between the total load response and bulk power system frequency dynamics. It also guarantees frequency stability under a wide range of time varying operating conditions. The local device-level load response rules fully respect the device constraints (such as temperature setpoint, compressor time delays of HVACs, or arrival and departure of the deferrable loads), which are crucial for implementing real load control programs. The promise of autonomous, Grid Friendly™ response by smart appliances in the form of under-frequency load shedding was demonstrated in the GridWise Olympic Peninsula Demonstration in 2006. Each controller monitored the power grid voltage signal and requested that electrical load be shed by its appliance whenever electric power-grid frequency fell below 59.95 Hz. The controllers and their appliances responded reliably to each shallow under-frequency event, which was an average of one event per day and shed their loads for the durations of these events. Another objective of this project was to perform extensive simulation studies to investigate the impact of a population of Grid Friendly™ Appliances (GFAs) on the bulk power system frequency stability. The GFAs considered in this report are represented as demonstration units with water heaters individually modeled.

Kalsi, Karanjit; Zhang, Wei; Lian, Jianming; Marinovici, Laurentiu D.; Moya, Christian; Dagle, Jeffery E.

2013-10-30T23:59:59.000Z

329

Equivalent Static Wind Loads on Buildings: New Model Xinzhong Chen1  

E-Print Network [OSTI]

Equivalent Static Wind Loads on Buildings: New Model Xinzhong Chen1 and Ahsan Kareem2 Abstract: In current design practice, spatiotemporally varying wind loads on buildings are modeled as equivalent static on buildings are modeled as equivalent static wind loads (ESWLs). This loading description serves as pivotal

Chen, Xinzhong

330

Distributed Generation  

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

Untapped Value of Backup Generation Untapped Value of Backup Generation While new guidelines and regulations such as IEEE (Institute of Electrical and Electronics Engineers) 1547 have come a long way in addressing interconnection standards for distributed generation, utilities have largely overlooked the untapped potential of these resources. Under certain conditions, these units (primarily backup generators) represent a significant source of power that can deliver utility services at lower costs than traditional centralized solutions. These backup generators exist today in large numbers and provide utilities with another option to reduce peak load, relieve transmission congestion, and improve power reliability. Backup generation is widely deployed across the United States. Carnegie Mellon's Electricity

331

Stochastic service load simulation for engineering structures  

Science Journals Connector (OSTI)

...at the design stage of an engineering structure, both global and...is relevant to other core engineering industry sectors. This paper...simulated Jack-up offshore load history (JOSH) developed for use...fatigue|fracture mechanics|engineering structures|

2001-01-01T23:59:59.000Z

332

Effect of electrode configuration and electronic conductivity on current density distribution measurements in PEM fuel cells  

E-Print Network [OSTI]

. BACKGROUND In this section available literature on attempts to obtain such local current density distribution data is reviewed briefly. Cleghorn et. al. [19] conducted some pioneering current density distribution measurements on typical lab scale PEM fuel... were studied. The authors employed a combination of two load units and a specially designed patch board that acted as a multiplexer to control the voltage at the various segments. Stumper et. al. [20] analyzed three methods for current density...

Natarajan, Dilip; Nguyen, Trung Van

2004-09-03T23:59:59.000Z

333

Shipboard applications of non-intrusive load monitoring  

E-Print Network [OSTI]

The Non-Intrusive Load Monitor (NILM) provides a method of measuring component performance and source power quality through a single point of entry in the power distribution system. A study was performed utilizing the NILM ...

Ramsey, Jack S

2004-01-01T23:59:59.000Z

334

Performance of Geogrid Reinforced Ballast under Dynamic Loading  

E-Print Network [OSTI]

Railroad ballast consists of open graded crushed stone used as a bed for railroad track to provide stability. It plays a significant role in providing support for the track base and distributing the load to the weaker ...

Jowkar, Milad

2011-12-31T23:59:59.000Z

335

Truck loading rack blending  

SciTech Connect (OSTI)

Blending, the combining of two or more components to make a single product, has become widely used in most loading rack applications. Blending should not be confused with additive injection, which is the injection of very small doses of enhancers, detergents and dyes into a product stream. Changes in the environmental protection laws in the early 90`s have put increasing demands on marketing terminals with regards to reformulated fuels and environmental protection concerns. As a result of these new mandates, terminals have turned to blending at the loading rack as an economical and convenient means in meeting these new requirements. This paper will discuss some of these mandates and how loading rack blending is used for different applications. Various types of blending will also be discussed along with considerations for each method.

Boubenider, E. [Daniel Flow Products, Inc., Houston, TX (United States)

1995-12-01T23:59:59.000Z

336

Low reflectance radio frequency load  

DOE Patents [OSTI]

A load for traveling microwave energy has an absorptive volume defined by cylindrical body enclosed by a first end cap and a second end cap. The first end cap has an aperture for the passage of an input waveguide with a rotating part that is coupled to a reflective mirror. The inner surfaces of the absorptive volume consist of a resistive material or are coated with a coating which absorbs a fraction of incident RF energy, and the remainder of the RF energy reflects. The angle of the reflector and end caps is selected such that reflected RF energy dissipates an increasing percentage of the remaining RF energy at each reflection, and the reflected RF energy which returns to the rotating mirror is directed to the back surface of the rotating reflector, and is not coupled to the input waveguide. Additionally, the reflector may have a surface which generates a more uniform power distribution function axially and laterally, to increase the power handling capability of the RF load. The input waveguide may be corrugated for HE11 mode input energy.

Ives, R. Lawrence; Mizuhara, Yosuke M

2014-04-01T23:59:59.000Z

337

A comparison of measured wind park load histories with the WISPER and WISPERX load spectra  

SciTech Connect (OSTI)

The blade-loading histories from two adjacent Micon 65/13 wind turbines are compared with the variable-amplitude test-loading histories known as the WISPER and WISPERX spectra. These standardized loading sequences were developed from blade flapwise load histories taken from nine different horizontal-axis wind turbines operating under a wide range of conditions in Europe. The subject turbines covered a broad spectrum of rotor diameters, materials, and operating environments. The final loading sequences were developed as a joint effort of thirteen different European organizations. The goal was to develop a meaningful loading standard for horizontal-axis wind turbine blades that represents common interaction effects seen in service. In 1990, NREL made extensive load measurements on two adjacent Micon 65/13 wind turbines in simultaneous operation in the very turbulent environment of a large wind park. Further, before and during the collection of the loads data, comprehensive measurements of the statistics of the turbulent environment were obtained at both the turbines under test and at two other locations within the park. The trend to larger but lighter wind turbine structures has made an understanding of the expected lifetime loading history of paramount importance. Experience in the US has shown that the turbulence-induced loads associated with multi-row wind parks in general are much more severe than for turbines operating individually or within widely spaced environments. Multi-row wind parks are much more common in the US than in Europe. In this paper we report on our results in applying the methodology utilized to develop the WISPER and WISPERX standardized loading sequences using the available data from the Micon turbines. While the intended purpose of the WISPER sequences were not to represent a specific operating environment, we believe the exercise is useful, especially when a turbine design is likely to be installed in a multi-row wind park.

Kelley, N.D.

1995-01-01T23:59:59.000Z

338

Characterization of Rivastigmine Loaded Chitosan  

E-Print Network [OSTI]

cholinesterase inhibitors (ChEI). In present study rivastigmine loaded chitosan-tripolyphosphate nanoparticles

Simar Preet Kaur; Rekha Rao; Afzal Hussain; Sarita Khatkar

339

Bridge Monitoring and Loading  

E-Print Network [OSTI]

#12;1 Bridge Monitoring and Loading P. Fanning, E. OBrien Stone Arch Bridges - Modelling simulations were conducted for a range of stone arch bridges spanning 5.0m to 32m. Traditional assessment procedures for the determination of both longitudinal and transverse bridge strengths were developed

340

Bridge Monitoring and Loading  

E-Print Network [OSTI]

1 Bridge Monitoring and Loading P. Fanning, E. OBrien Stone Arch Bridges - Modelling and Assessment dimensional non- linear finite element simulations of a range of stone arch- bridges spanning 5.0m to 32m and novel assessment proce- dures for the determination of both longitudinal andtrans- verse bridge

Note: This page contains sample records for the topic "distribution design load" 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

Load Management Made Simple  

E-Print Network [OSTI]

Company have moved to a demand side or load management mode which seeks to influence customers to change electric usage patterns to more efficiently use available generating capacity. Since 1970, the TUEC system peak demand has more than doubled from about...

Schneider, K.

1985-01-01T23:59:59.000Z

342

Integrated Thermal Analysis of the FRIB Cryomodule Design  

SciTech Connect (OSTI)

Thermal analysis of the FRIB cryomodule design is performed to determine the heat load to the cryogenic plant, to minimize the cryogenic plant load, to simulate thermal shield cool down as well as to determine the pressure relief sizes for failure conditions. Static and dynamic heat loads of the cryomodules are calculated and the optimal shield temperature is determined to minimize the cryogenic plant load. Integrated structural and thermal simulations of the 1100-O aluminium thermal shield are performed to determine the desired cool down rate to control the temperature profile on the thermal shield and to minimize thermal expansion displacements during the cool down. Pressure relief sizing calculations for the SRF helium containers, solenoids, helium distribution piping, and vacuum vessels are also described.

Y. Xu, M. Barrios, F. Casagrande, M.J. Johnson, M. Leitner, D. Arenius, V. Ganni, W.J. Schneider, M. Wiseman

2012-07-01T23:59:59.000Z

343

recreate load le Rick Whitman  

E-Print Network [OSTI]

is an example of an initial unexpanded fos load le. It loads data for the le: u-init-y.cy0 u data for the le: e-init-y.cy0 2 #12;e-next-y.lod - this is an expanded fos load which uses erecreate load le Rick Whitman November 27, 1996 Usage The tool is invoked by entering recreate load

Sirianni, Marco

344

September 2013 Most Viewed Documents for Power Generation And Distribution  

Office of Scientific and Technical Information (OSTI)

Power Generation And Distribution Power Generation And Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 200 Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 103 ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 76 Feed-pump hydraulic performance and design improvement, Phase I: research program design. Final report Brown, W.H.; Gopalakrishnan, S.; Fehlau, R.; Thompson, W.E.; Wilson, D.G. (1982) 69 Seventh Edition Fuel Cell Handbook NETL (2004) 65 Load flow analysis: Base cases, data, diagrams, and results Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; Peerenboom, J.P. (1997) 52 Controlled low strength materials (CLSM), reported by ACI Committee

345

Using Control Theory to Guide Load Shedding in Medical Data Stream Management System  

Science Journals Connector (OSTI)

The load shedding problem is vital to a Data Stream Management System (DSMS). This paper ... the design, implementation, and evaluation of a load shedding method under the guide of the ... is not so in a DSMS usi...

Zijing Hu; Hongyan Li; Baojun Qiu…

2005-01-01T23:59:59.000Z

346

Test results of a combined distributed ion pump/non-evaporable getter pump design developed as a proposed alternative pumping system for the PEP-II asymmetric B-Factory collider  

SciTech Connect (OSTI)

The authors have built and tested an all-in-one combination plate-type distributed ion pump/non-evaporable getter pump design (DIP/NEG) considered as a proposed alternative pumping system for the PEP-II B-Factory High Energy Ring (HER). The DIP portion of the design used a Penning cell hole size of 12 mm in a mostly uniform magnetic field of 0.18 T. The NEG portion of the design used commercially available non-evaporable getter material type St-707{trademark}. A detailed description of the design is presented along with results of pumping speed measurements.

Holdener, F.; Behne, D.; Hathaway, D. [Lawrence Livermore National Lab., CA (United States)] [and others

1995-04-24T23:59:59.000Z

347

Cluster-Based Load Balancing Algorithms for Grids  

E-Print Network [OSTI]

E-science applications may require huge amounts of data and high processing power where grid infrastructures are very suitable for meeting these requirements. The load distribution in a grid may vary leading to the bottlenecks and overloaded sites. We describe a hierarchical dynamic load balancing protocol for Grids. The Grid consists of clusters and each cluster is represented by a coordinator. Each coordinator first attempts to balance the load in its cluster and if this fails, communicates with the other coordinators to perform transfer or reception of load. This process is repeated periodically. We analyze the correctness, performance and scalability of the proposed protocol and show from the simulation results that our algorithm balances the load by decreasing the number of high loaded nodes in a grid environment.

Payli, Resat Umit; Dagdeviren, Orhan

2011-01-01T23:59:59.000Z

348

Analysis of microelectronic power distribution networks and exploration of 3D ICs  

E-Print Network [OSTI]

Regulator Based Power Distribution Design Under WorstTanmoy Roy. Power Distribution System Design Methodology andChen, “3D Power Distribution Network Co-design for Nanoscale

Hu, Xiang

2012-01-01T23:59:59.000Z

349

load profile | OpenEI Community  

Open Energy Info (EERE)

data load data load profile OpenEI residential load TMY3 United States Load data Image source: NREL Files: applicationzip icon System Advisor Model Tool for Downloading Load Data...

350

Building Energy Software Tools Directory: TRACE Load 700  

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

Load 700 Load 700 TRACE Load 700 logo. Use TRACE Load 700 software - the building and load design modules of TRACE 700, Trane Air Conditioning Economics - to evaluate the effect of building orientation, size, shape, and mass based on hourly weather data and the resulting heat-transfer characteristics of air and moisture. To assure calculation integrity, the program uses algorithms recommended by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE). Choose from eight different ASHRAE cooling and heating methodologies, including the Exact Transfer Function. The program encourages "what if" analyses, allowing the user to enter construction details in any order and then easily change the resulting building model as the design progresses. Multiple project views and "drag-and-drop"

351

Dynamic load measurement on an LPG carrier during voyage  

SciTech Connect (OSTI)

There are few actual ship measurement data showing the propriety of the design loads given by classification societies rules or other relevant rules. Therefore, the authors measured acceleration of ship motion and fluctuating loads on tank supports and chocks of a 75,000 m{sup 3} LPG carrier during her voyage. This paper introduces the subject ship and typical measurement results over about 1.3 years. From the analysis of these data, the authors have made clear the amount of frequency of fluctuating loads during actual navigation and ascertained the propriety of the ship`s design base.

Kamoi, Noriyuki; Taniguchi, Tomokazu; Kiso, Takashi; Kada, Kazuo; Motoi, Tatsuya; Nakamura, Shinichi [Kawasaki Heavy Industries, Ltd., Kobe (Japan)

1994-12-31T23:59:59.000Z

352

Load Management: Opportunity or Calamity?  

E-Print Network [OSTI]

larger now than prior to 1973. Utilities are examining two options which can be termed load management. One option is to control discretionary loads during peak periods. Cycling of residential water heaters or shutting off industrial electric furnaces...

Males, R.; Hassig, N.

1981-01-01T23:59:59.000Z

353

Distributed Generation and Grid Interconnection  

Science Journals Connector (OSTI)

Thus far we have considered point compensation and the correction of the voltage or current at a particular location in the network. This chapter considers the voltage profile of lines with distributed loads a...

Arindam Ghosh; Gerard Ledwich

2002-01-01T23:59:59.000Z

354

Variable loading roller  

DOE Patents [OSTI]

An automatic loading roller for transmitting torque in traction drive devices in manipulator arm joints includes a two-part camming device having a first cam portion rotatable in place on a shaft by an input torque and a second cam portion coaxially rotatable and translatable having a rotating drive surface thereon for engaging the driven surface of an output roller with a resultant force proportional to the torque transmitted. Complementary helical grooves in the respective cam portions interconnected through ball bearings interacting with those grooves effect the rotation and translation of the second cam portion in response to rotation of the first. 14 figs.

Williams, D.M.

1988-01-21T23:59:59.000Z

355

Load Balancing on a Grid Using Data Characteristics Jonathan White and Dale R. Thompson  

E-Print Network [OSTI]

Load Balancing on a Grid Using Data Characteristics Jonathan White and Dale R. Thompson Computer environment is how to partition their data across the computers in the grid to promote load balancing and parallel retrieval. The first challenge of distributing data across a grid of computers is load balancing

Thompson, Dale R.

356

The impact of large-scale distributed generation on power grid and microgrids  

Science Journals Connector (OSTI)

Abstract With the widespread application of distributed generation (DG), their utilization rate is increasingly higher and higher in the power system. This paper analyzes the static and transient impact of large-scale \\{DGs\\} integrated with the distribution network load models on the power grid. Studies of static voltage stability based on continuous power flow method have shown that a reasonable choice of DG's power grid position will help to improve the stability of the system. The transient simulation results show that these induction motors in the distribution network would make effect on the start-up and fault conditions, which may cause the instability of \\{DGs\\} and grid. The simulation results show that modeling of distributed generations and loads can help in-depth study of the microgrid stability and protection design.

Qian Ai; Xiaohong Wang; Xing He

2014-01-01T23:59:59.000Z

357

A Design of Single Phase Induction Generator for Waterfall-hydro Turbine  

Science Journals Connector (OSTI)

Abstract This paper presents the design of the single phase induction generator for hydro turbine that driven by waterfall power. By the principle, when the water from the waterfall flows along the 1 inch pipe until to the nozzle, after that the nozzle directs water jet along a tangent to the circle through the center of the buckets. Finally, the buckets drive the rotor shaft of the single phase induction generator and generated 220 V a.c. voltage for distributing electric load. The design of single phase induction generator is modified by rewiring the winding of an old 1 HP, 220 V, 50 Hz motor from 4 poles to 6 poles. For impulse turbine design, this paper use the information model from Baan Kiriwong waterfall, Nakhorn Sri Thammarat province, south of Thailand for designing the dimension of the components of Pelton turbine with 9 ½ inches diameter and 18 buckets. The result in laboratory test, at on-load test, the generator can distribute the load at 115.96W, 223 V, 0.52A, 0.96P.F. - lagging with 1,200 rpm of shaft speed. For the applications test, the water pump are set the pressure as similar as the Baan Kiriwong waterfall and when the water jet against the bucket for moving the generator, at on-load test, the generator can distribute the load at 77.9W, 190 V, 0.41A, 0.98P.F. - lagging with 1,100 rpm of shaft speed. It should be suitable for light load rural area and really far from electric distribution system.

Sirichai Dangeam

2013-01-01T23:59:59.000Z

358

Malczewski Product Design LLC | Open Energy Information  

Open Energy Info (EERE)

Malczewski Product Design LLC Malczewski Product Design LLC Jump to: navigation, search Name Malczewski Product Design LLC Place Neenah, Wisconsin Zip 54956 Sector Wind energy Product Product development start-up planning to design, develop, patent, and distribute a new type of wind generator. Coordinates 44.186095°, -88.461954° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.186095,"lon":-88.461954,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

359

Analysis and design of reliable nanometer circuits  

E-Print Network [OSTI]

71 Figure 3-11 R c Distribution in DesignFigure 3-11 R c Distribution in Design EX Conclusion In thisoverall vulnerability distribution in a design and discovers

Zhao, Chong

2007-01-01T23:59:59.000Z

360

Liquefaction through expander for base load LNG  

SciTech Connect (OSTI)

New natural gas liquefaction process using turbo expander has been developed to improve process thermal efficiency. The new process consists of precooling section which uses refrigerant with shell and tube heat exchangers or brazed aluminum plate-fin exchangers or spool wound heat exchanger and liquefaction section by iso-entropic expander. As a result of design study, thermal efficiency of the new liquefaction process has been confirmed to be in the highest level compared with other liquefaction processes. Also, since the new liquefaction process is constructed with commonly available equipment in industry, it can be readily adapted to base load LNG plants of any capacity without requiring expensive and specially designed equipment.

Nakamura, Moritaka; Kikkawa, Yoshitsugi [Chiyoda Corp., Yokohama (Japan)

1998-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "distribution design load" 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

Descents and nodal load in scale-free networks  

Science Journals Connector (OSTI)

The load of a node in a network is the total traffic going through it when every node pair sustains a uniform bidirectional traffic between them on shortest paths. We express nodal load in terms of the more elementary notion of a node’s descents in breadth-first-search [(BFS) or shortest-path] trees and study both the descent and nodal-load distributions in the case of scale-free networks. Our treatment is both semianalytical (combining a generating-function formalism with simulation-derived BFS branching probabilities) and computational for the descent distribution; it is exclusively computational in the case of the load distribution. Our main result is that the load distribution, even though it can be disguised as a power law through subtle (but inappropriate) binning of the raw data, is in fact a succession of sharply delineated probability peaks, each of which can be clearly interpreted as a function of the underlying BFS descents. This find is in stark contrast with previously held belief, based on which a power law of exponent ?2.2 was conjectured to be valid regardless of the exponent of the power-law distribution of node degrees.

Elias Bareinboim and Valmir C. Barbosa

2008-04-17T23:59:59.000Z

362

Effect of Compression Ratio and Piston Geometry on RCCI load limit  

Broader source: Energy.gov [DOE]

Explores the effect of compression ratio and piston design on the practical load range of bio-fueled Reactivity Controlled Compression Ignition (RCCI) combustion.

363

Sliding Mode Control for Pressurized-Water Nuclear Reactors in load following operations with bounded xenon oscillations  

Science Journals Connector (OSTI)

Abstract One of the important operations in nuclear power plants is load-following in which imbalance of axial power distribution induces xenon oscillations. These oscillations must be maintained within acceptable limits otherwise the nuclear power plant could become unstable. Therefore, bounded xenon oscillation considered to be a constraint for the load-following operation. In this paper, sliding mode control (SMC) which is a robust nonlinear controller is designed to control the Pressurized-Water Nuclear Reactor (PWR) power for the load-following operation problem that ensures xenon oscillations are kept bounded within acceptable limits. The proposed controller uses constant axial offset (AO) strategy to maintain xenon oscillations to be bounded. The constant AO is a robust state constraint for load-following problem. The reactor core is simulated based on the two-point nuclear reactor model and one delayed neutron group. The stability analysis is given by means Lyapunov approach, thus the control system is guaranteed to be stable within a large range. The employed method is easy to implement in practical applications and moreover, the sliding mode control exhibits the desired dynamic properties during the entire output-tracking process independent of perturbations. Simulation results are presented to demonstrate the effectiveness of the proposed controller in terms of performance, robustness and stability. Results show that the proposed controller for the load-following operation is sufficiently effective so that the xenon oscillations are kept bounded in the considered region.

G.R. Ansarifar; S. Saadatzi

2015-01-01T23:59:59.000Z

364

Distributed Algorithms Distributed Transactions  

E-Print Network [OSTI]

Algorithms© Gero Mühl 8 Concurrency Control serial RC (ReCoverable) ACA (Avoiding Cascading Aborts) ST (StricDistributed Algorithms Distributed Transactions PD Dr.-Ing. Gero Mühl Kommunikations- und Betriebssysteme Fakultät für Elektrotechnik u. Informatik Technische Universität Berlin #12;Distributed Algorithms

Wichmann, Felix

365

Measured Peak Equipment Loads in Laboratories  

E-Print Network [OSTI]

of measured equipment load data for laboratories, designersmeasured peak equipment load data from 39 laboratory spacesmeasured equipment load data from various laboratory spaces

Mathew, Paul A.

2008-01-01T23:59:59.000Z

366

Prognostic Control and Load Survivability in Shipboard Power Systems  

E-Print Network [OSTI]

, etc. Transmission systems consist of transformers, circuit breakers, and transmission lines to deliver power from the generation power plants to distribution systems. Commercial, residential, and industrial customers are the types of loads served... cannot supply power to it, then it should be powered through its alternate path. The process of restoring, balancing, and minimizing power losses to loads is called network reconfiguration. Prognostics is the ability to predict precisely and accurately...

Thomas, Laurence J.

2011-02-22T23:59:59.000Z

367

Evaluation of Equivalent Static Wind Loads on Buildings Xinzhong Chen1  

E-Print Network [OSTI]

effects. This load representation allows designers to follow a relatively simple static analysis procedureEvaluation of Equivalent Static Wind Loads on Buildings Xinzhong Chen1 and Ahsan Kareem2 1 Professor of Engineering, University of Notre Dame, Indiana, USA, kareem@nd.edu ABSTRACT Wind loads

Kareem, Ahsan

368

Reasoning about Probabilistic Phenomena: Lessons Learned and Applied in Software Design  

E-Print Network [OSTI]

sand into bins to design a distribution to represent theirg empirical distribution In the ne design, if the Distr n.design an experiment involve an equiprobable distribution (

Lee, Hollylynne S; Lee, J. Todd

2009-01-01T23:59:59.000Z

369

A direct displacement-based design of low-rise seismic resistant steel moment frames  

E-Print Network [OSTI]

Lateral Force Distribution for Seismic Design StructuralLateral Force Distribution for Seismic Design . 169stiffness distribution are additional design choices that

Harris, John L.

2006-01-01T23:59:59.000Z

370

Advanced Design and Commissioning Tools for Energy-Efficient Building Technologies  

E-Print Network [OSTI]

Underfloor Air Distribution (UFAD) Design Guide. Atlanta:Underfloor Air Distribution (UFAD) Design Guide. Atlanta:minimized by good distribution system design whether using

Bauman, Fred; Webster, Tom; Zhang, Hui; Arens, Ed

2012-01-01T23:59:59.000Z

371

The potential for distributed generation in Japanese prototype buildings: A DER-CAM analysis of policy, tariff design, building energy use, and technology development (English Version)  

E-Print Network [OSTI]

Distributed Generation in Japanese Prototype Buildings: English Version On-site absorption cooling On-site heating On-site generatorsDistributed Generation in Japanese Prototype Buildings: English Version On-site direct absorption cooling On-site heating On-site generatorDistributed Generation in Japanese Prototype Buildings: English Version Macrogrid On-site heating fuel consumption (tJ/a) carbon (t/a) On-site generators

Zhou, Nan; Marnay, Chris; Firestone, Ryan; Gao, Weijun; Nishida, Masaru

2004-01-01T23:59:59.000Z

372

Design of advanced fossil-fuel systems (DAFFS): a study of three developing technologies for coal-fired, base-load electric power generation. Integrated coal gasification/combined cycle power plant with Texaco gasification process  

SciTech Connect (OSTI)

The objectives of this report are to present the facility description, plant layouts and additional information which define the conceptual engineering design, and performance and cost estimates for the Texaco Integrated Gasification Combined Cycle (IGCC) power plant. Following the introductory comments, the results of the Texaco IGCC power plant study are summarized in Section 2. In Section 3, a description of plant systems and facilities is provided. Section 4 includes pertinent performance information and assessments of availability, natural resource requirements and environmental impact. Estimates of capital costs, operation and maintenance costs and cost of electricity are presented in Section 5. A Bechtel Group, Inc. assessment and comments on the designs provided by Burns and Roe-Humphreys and Glasgow Synthetic Fuel, Inc. are included in Section 6. The design and cost estimate reports which were prepared by BRHG for those items within their scope of responsibility are included as Appendices A and B, respectively. Appendix C is an equipment list for items within the BGI scope. The design and cost estimate classifications chart referenced in Section 5 is included as Appendix D. 8 references, 17 figures, 15 tables.

Not Available

1983-06-01T23:59:59.000Z

373

Design of advanced fossil-fuel systems (DAFFS): a study of three developing technologies for coal-fired, base-load electric power generation. Integrated coal-gasification/combined power plant with BGC/Lurgi gasification process  

SciTech Connect (OSTI)

The objectives of this report are to present the facility description, plant layouts and additional information which define the conceptual engineering design, and performance and cost estimates for the BGC/Lurgi Integrated Gasification Combined Cycle (IGCC) power plant. Following the introductory comments, the results of the British Gas Corporation (BGC)/Lurgi IGCC power plant study are summarized in Section 2. In Secion 3, a description of plant systems and facilities is provided. Section 4 includes pertinent performance information and assessments of availability, natural resource requirements and environmental impact. Estimates of capital costs, operating and maintenance costs and cost of electricity are presented in Section 5. A Bechtel Group Inc. (BGI) assessment and comments on the designs provided by Burns and Roe-Humphreys and Glasgow Synthetic Fuels, Inc. (BRHG) are included in Section 6. The design and cost estimate reports which were prepared by BRHG for those items within their scope of responsibility are included as Appendices A and B, respectively. Apendix C is an equipment list for items within the BGI scope. The design and cost estimate classifications chart referenced in Section 5 is included as Appendix D. 8 references, 18 figures, 5 tables.

Not Available

1983-06-01T23:59:59.000Z

374

Demand Response: Load Management Programs  

E-Print Network [OSTI]

CenterPoint Load Management Programs CATEE Conference October, 2012 Agenda Outline I. General Demand Response Definition II. General Demand Response Program Rules III. CenterPoint Commercial Program IV. CenterPoint Residential Programs... V. Residential Discussion Points Demand Response Definition of load management per energy efficiency rule 25.181: ? Load control activities that result in a reduction in peak demand, or a shifting of energy usage from a peak to an off...

Simon, J.

2012-01-01T23:59:59.000Z

375

Dynamic load balancing of applications  

DOE Patents [OSTI]

An application-level method for dynamically maintaining global load balance on a parallel computer, particularly on massively parallel MIMD computers. Global load balancing is achieved by overlapping neighborhoods of processors, where each neighborhood performs local load balancing. The method supports a large class of finite element and finite difference based applications and provides an automatic element management system to which applications are easily integrated.

Wheat, Stephen R. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

376

FINAL PROJECT REPORT LOAD MODELING TRANSMISSION RESEARCH  

E-Print Network [OSTI]

at PSE is to collect load data for validating dynamic and approach decomposes recorded load data into different load “to continuously record load data for a selected time period

Lesieutre, Bernard

2013-01-01T23:59:59.000Z

377

Loads Providing Ancillary Services: Review of International Experience |  

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

Loads Providing Ancillary Services: Review of International Loads Providing Ancillary Services: Review of International Experience Loads Providing Ancillary Services: Review of International Experience In this study, we examine the arrangements for and experiences of end-use loads providing ancillary services (AS) in five electricity markets: Australia, the United Kingdom (UK), the Nordic market, and the ERCOT and PJM markets in the United States. Our objective in undertaking this review of international experience was to identify specific approaches or market designs that have enabled customer loads to effectively deliver various ancillary services (AS) products. We hope that this report will contribute to the ongoing discussion in the U.S. and elsewhere regarding what institutional and technical developments are needed to ensure that

378

Loads Providing Ancillary Services: Review of International Experience |  

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

Loads Providing Ancillary Services: Review of International Loads Providing Ancillary Services: Review of International Experience Loads Providing Ancillary Services: Review of International Experience In this study, we examine the arrangements for and experiences of end-use loads providing ancillary services (AS) in five electricity markets: Australia, the United Kingdom (UK), the Nordic market, and the ERCOT and PJM markets in the United States. Our objective in undertaking this review of international experience was to identify specific approaches or market designs that have enabled customer loads to effectively deliver various ancillary services (AS) products. We hope that this report will contribute to the ongoing discussion in the U.S. and elsewhere regarding what institutional and technical developments are needed to ensure that

379

Online Load Balancing for Related Machines  

E-Print Network [OSTI]

of entire schedule s as follows: load(s; i) = 1 v i X s(j)=i p j ; Load(s) = max i load(s; i) It is easyOn­line Load Balancing for Related Machines Piotr Berman \\Lambda Moses Charikar y Marek Karpinski z­line load balancing was studied extensively over the years (cf., e.g., [7], [3], [4], and [2

Karpinski, Marek

380

AEDG Implementation Recommendations: Cooling and Heating Loads | Building  

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

Cooling and Heating Loads Cooling and Heating Loads The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on heating and cooling system design loads for the purpose of sizing systems and equipment should be calculated in accordance with generally accepted engineering standards and handbooks such as ASHRAE Handbook--Fundamentals. Publication Date: Wednesday, May 13, 2009 air_cooling_and_heating_loads.pdf Document Details Affiliation: DOE BECP Focus: Compliance Building Type: Commercial Code Referenced: ASHRAE Standard 90.1-1999

Note: This page contains sample records for the topic "distribution design load" 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

Miscellaneous and Electronic Loads Energy Efficiency Opportunities for  

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

Miscellaneous and Electronic Loads Energy Efficiency Opportunities for Miscellaneous and Electronic Loads Energy Efficiency Opportunities for Commercial Buildings: A Collaborative Study by the United States and India Title Miscellaneous and Electronic Loads Energy Efficiency Opportunities for Commercial Buildings: A Collaborative Study by the United States and India Publication Type Report Refereed Designation Unknown LBNL Report Number LBNL-6287E Year of Publication 2013 Authors Ghatikar, Girish, Iris H. Y. Cheung, and Steven Lanzisera Secondary Authors Wardell, Bob, Manoj Deshpande, Jayraj Ugarkar, and Infosys Technologies Limited Date Published 04/2013 Keywords Electronic loads, energy efficiency opportunities for commercial buildings Short Title MELs Refereed Designation Unknown Attachment Size PDF 1.44 MB Google Scholar BibTex

382

Cold Air Distribution in Office Buildings: Technology Assessment for California  

E-Print Network [OSTI]

1988. Cold Air Distribution Design Guide. EPRI Report EM-match the cold air distribution design, the floor-to-floorinclude cold air distribution in their designs. The projects

Bauman, F.S.

2008-01-01T23:59:59.000Z

383

NREL: Vehicle Ancillary Loads Reduction - Integrated Modeling  

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

Integrated Modeling Integrated Modeling NREL's Vehicle Ancillary Loads Reduction (VALR) team predicts the impact of advanced vehicle cooling technologies before testing by using an integrated modeling process. Evaluating the heat load on a vehicle under real world conditions is a difficult task. An accepted method to evaluate passenger compartment airflow and heat transfer is computational fluid dynamics. (CFD). Combining analytical models with CFD provides a powerful tool to assist industry both on current vehicles and on future design studies. Flow chart showing the vehicle integrated modeling process which considers solar radiation, air conditioning, and vehicles with CAD, glazing, cabin thermal/fluid, and thermal comfort modeling tools. Results are provided for fuel economy, tailpipe emissions and occupant thermal comfort.

384

SLUDGE TREATMENT PROJECT COST COMPARISON BETWEEN HYDRAULIC LOADING AND SMALL CANISTER LOADING CONCEPTS  

SciTech Connect (OSTI)

The Sludge Treatment Project (STP) is considering two different concepts for the retrieval, loading, transport and interim storage of the K Basin sludge. The two design concepts under consideration are: (1) Hydraulic Loading Concept - In the hydraulic loading concept, the sludge is retrieved from the Engineered Containers directly into the Sludge Transport and Storage Container (STSC) while located in the STS cask in the modified KW Basin Annex. The sludge is loaded via a series of transfer, settle, decant, and filtration return steps until the STSC sludge transportation limits are met. The STSC is then transported to T Plant and placed in storage arrays in the T Plant canyon cells for interim storage. (2) Small Canister Concept - In the small canister concept, the sludge is transferred from the Engineered Containers (ECs) into a settling vessel. After settling and decanting, the sludge is loaded underwater into small canisters. The small canisters are then transferred to the existing Fuel Transport System (FTS) where they are loaded underwater into the FTS Shielded Transfer Cask (STC). The STC is raised from the basin and placed into the Cask Transfer Overpack (CTO), loaded onto the trailer in the KW Basin Annex for transport to T Plant. At T Plant, the CTO is removed from the transport trailer and placed on the canyon deck. The CTO and STC are opened and the small canisters are removed using the canyon crane and placed into an STSC. The STSC is closed, and placed in storage arrays in the T Plant canyon cells for interim storage. The purpose of the cost estimate is to provide a comparison of the two concepts described.

GEUTHER J; CONRAD EA; RHOADARMER D

2009-08-24T23:59:59.000Z

385

Thermal comfort and cold air distribution  

SciTech Connect (OSTI)

Cold air distribution systems supply air at temperatures between 38 F and 51 F. Cold air distribution systems are increasingly attractive when used in conjunction with ice storage systems to shave peak load by shifting the demand to off-peak hours. They also require less operating and capital costs because they use smaller fans, ducts, piping, and pumps. However, an important issue in design and application of cold air systems is the effect on occupant comfort. There are several techniques and methodologies that practitioners use for evaluation of conventional air distribution systems. Among these is the Air Diffusion Performance Index (ADPI). It is widely used in the US and is referenced in the 1993 ASHRAE Handbook--Fundamentals. However, this technique is based on empirical correlations obtained from tests conducted with conventional systems and it cannot be guaranteed that they will be equally applicable to cold air systems. This study was undertaken, therefore, to extend the existing techniques (especially the Air Diffusion Performance Index) to applications where cold air distribution systems are utilized. This work presents a critical review of the evolution of the ADPI technique and offers several recommendations for developing a firm foundation for future room air distribution research.

Hassani, V. [National Renewable Energy Lab., Golden, CO (United States); Miller, P.L. [Miller (Paul), Arvada, CO (United States)

1998-10-01T23:59:59.000Z

386

Steady and Unsteady Wind Loading of Buildings and Structures [and Discussion  

Science Journals Connector (OSTI)

...terrain are briefly discussed. For design based on steady wind loadings the design wind speed is dependent on the acceptable degree of risk. Force and pressure coefficients may be influenced by Reynolds number, surface roughness, wind characteristics...

1971-01-01T23:59:59.000Z

387

The Application and Verification of ASHRAE 152-2004 (Method of Test for Determining the Design and Seasonal Efficiencies of Residential Thermal Distribution Systems) to DOE-2-1e Simulation Program  

E-Print Network [OSTI]

ESL-TR-08-06-01 THE APPLICATION AND VERIFICATION OF ASHRAE 152-2004 (Method of Test for Determining the Design and Seasonal Efficiencies of Residential Thermal Distribution Systems) TO DOE-2.1e SIMULATION PROGRAM Jeff S... Systems Laboratory, Texas A&M University System 1 EXECUTIVE SUMMARY This report describes the application and verification of duct model on DOE 2.1e version 119 using ASHRAE 152-2004 (Method of Test for Determining the Design and Seasonal...

Kim, S.; Haberl, J. S.

388

Spring loaded locator pin assembly  

DOE Patents [OSTI]

This invention deals with spring loaded locator pins. Locator pins are sometimes referred to as captured pins. This is a mechanism which locks two items together with the pin that is spring loaded so that it drops into a locator hole on the work piece.

Groll, Todd A. (Idaho Falls, ID); White, James P. (Pocatelo, ID)

1998-01-01T23:59:59.000Z

389

Spring loaded locator pin assembly  

DOE Patents [OSTI]

This invention deals with spring loaded locator pins. Locator pins are sometimes referred to as captured pins. This is a mechanism which locks two items together with the pin that is spring loaded so that it drops into a locator hole on the work piece. 5 figs.

Groll, T.A.; White, J.P.

1998-03-03T23:59:59.000Z

390

Load Forecasting of Supermarket Refrigeration  

E-Print Network [OSTI]

energy system. Observed refrigeration load and local ambient temperature from a Danish su- permarket renewable energy, is increasing, therefore a flexible energy system is needed. In the present ThesisLoad Forecasting of Supermarket Refrigeration Lisa Buth Rasmussen Kongens Lyngby 2013 M.Sc.-2013

391

building load | OpenEI  

Open Energy Info (EERE)

load load Dataset Summary Description This dataset contains hourly load profile data for 16 commercial building types (based off the DOE commercial reference building models) and residential buildings (based off the Building America House Simulation Protocols). This dataset also includes the Residential Energy Consumption Survey (RECS) for statistical references of building types by location. Source Commercial and Residential Reference Building Models Date Released April 18th, 2013 (9 months ago) Date Updated July 02nd, 2013 (7 months ago) Keywords building building demand building load Commercial data demand Energy Consumption energy data hourly kWh load profiles Residential Data Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Annually

392

Optimizing the Design of Biomass Hydrogen Supply Chains Using Real-World Spatial Distributions: A Case Study Using California Rice Straw  

E-Print Network [OSTI]

Economic Analyis of Hydrogen Production by Gasification ofOptimal Design of Hydrogen Production from AgricuturalJ. D. (1998). "Hydrogen Production from Wastes." Energy, 23(

Parker, Nathan C

2007-01-01T23:59:59.000Z

393

Optimizing the Design of Biomass Hydrogen Supply ChainsUsing Real-World Spatial Distributions: A Case Study Using California Rice Straw  

E-Print Network [OSTI]

Economic Analyis of Hydrogen Production by Gasification ofOptimal Design of Hydrogen Production from AgricuturalJ. D. (1998). "Hydrogen Production from Wastes." Energy, 23(

Parker, Nathan

2007-01-01T23:59:59.000Z

394

Fuel loading of PeBR for a long operation life on the lunar surface  

SciTech Connect (OSTI)

The Pellet Bed Reactor (PeBR) power system could provide 99.3 kW e to a lunar outpost for 66 full power years and is designed for no single point failures. The core of this fast energy spectrum reactor consists of three sectors that are neutronically and thermally coupled, but hydraulically independent. Each sector has a separate Closed Brayton Cycle (CBC) loop for energy conversion and separate water heat-pipes radiator panels for heat rejection. He-Xe (40 g/mole) binary gas mixture serves as the reactor coolant and CBC working fluid. On the lunar surface, the emplaced PeBR below grade is loaded with spherical fuel pellets (1-cm in dia.). It is launched unfueled and the pellets are launched in separate subcritical canisters, one for each core sector. This paper numerically simulates the transient loading of a core sector with fuel pellets on the Moon. The simulation accounts for the dynamic interaction of the pellets during loading and calculates the axial and radial distributions of the volume porosity in the sector. The pellets pack randomly with a volume porosity of 0.39 - 0.41 throughout most of the sector, except near the walls the local porosity is higher. (authors)

Schriener, T. M. [Inst. for Space and Nuclear Power Studies, Univ. of New Mexico, Albuquerque, NM (United States); Chemical and Nuclear Engineering Dept., Univ. of New Mexico, Albuquerque, NM (United States); El-Genk, M. S. [Inst. for Space and Nuclear Power Studies, Univ. of New Mexico, Albuquerque, NM (United States); Chemical and Nuclear Engineering Dept., Univ. of New Mexico, Albuquerque, NM (United States); Mechanical Engineering Dept., Univ. of New Mexico, Albuquerque, NM (United States)

2012-07-01T23:59:59.000Z

395

April 2013 Most Viewed Documents for Power Generation And Distribution |  

Office of Scientific and Technical Information (OSTI)

April 2013 Most Viewed Documents for Power Generation And Distribution April 2013 Most Viewed Documents for Power Generation And Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 719 Seventh Edition Fuel Cell Handbook NETL (2004) 628 ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 343 Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 290 Load flow analysis: Base cases, data, diagrams, and results Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; Peerenboom, J.P. (1997) 248 Controlled low strength materials (CLSM), reported by ACI Committee 229 Rajendran, N. (1997) 106 Micro-CHP Systems for Residential Applications Timothy DeValve; Benoit Olsommer (2007)

396

load data | OpenEI Community  

Open Energy Info (EERE)

51 51 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142234851 Varnish cache server load data Home Sfomail's picture Submitted by Sfomail(48) Member 17 May, 2013 - 12:03 Commercial and Residential Hourly Load Data Now Available on OpenEI! building load building load data commercial load data dataset datasets electric load data load data load profile OpenEI residential load TMY3 United States Load data Image source: NREL Files: application/zip icon System Advisor Model Tool for Downloading Load Data

397

Thermal loading study for FY 1996. Volume 1  

SciTech Connect (OSTI)

The primary objective of this study was to provide recommendations for Mined Geologic Disposal System requirements affected by thermal loading that will provide sufficient definition to facilitate development of design concepts and support life cycle cost determinations. The study reevaluated and/or redefined selected thermal goals used for design and are currently contained in the requirements documents or the Controlled Design Assumption Document. The study provided recommendations as to what, if any, actions (such as edge loading and limiting of the heat variability between waste packages) are needed and must be accommodated in the design. Additionally, the study provided recommendations as to what alternative thermal loads should be maintained for continued flexibility. Section 1 provides the study objective, background, scope, and organization of the report. Section 2 documents the requirements and standards to include quality assurance (QA) requirements, any requirements used or evaluated, and the inputs and assumptions considered. Section 3 provides the analysis and recommendations for the thermal goals reevaluation. Section 4 discusses the evaluation of edge loading and provides conclusions. Section 5 provides the analyses done to establish recommendations as to what requirements need to be implemented to either limit or manage the amount of heat output variability that may occur. Section 6 discusses alternate thermal loadings; Section 7 provides the study conclusions and recommendations; Section 8 provides the references, standards, and regulations; and Section 9 contains the acronym list.

NONE

1996-11-08T23:59:59.000Z

398

Exploiting Process Lifetime Distributions for Dynamic Load Balancing  

E-Print Network [OSTI]

grant number CCR­9201092. Allen Downey partially supported by NSF (DARA) grant DMW­8919074. An earlier

Harchol-Balter, Mor

399

Exploiting Process Lifetime Distributions for Dynamic Load Balancing  

E-Print Network [OSTI]

supported by NSF (DARA) grant DMW-8919074. An earlier version of this article appeared in the Proceedings

Papadopouli, Maria

400

Distributed Coordination Schemes for Periodic Loads for Demand Side Management.  

E-Print Network [OSTI]

?? Demand side management (DSM) is a means to improve the energy efficiency, reduce the greenhouse gas emission, the consumers’ cost and the power grid… (more)

Xia, Tian

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distribution design load" 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

OPTIMAL DISTRIBUTED POWER GENERATION UNDER NETWORK LOAD CONSTRAINTS,  

E-Print Network [OSTI]

-producers. Decentralized Power Generation (DPG) refers to an electric power source such as solar, wind or combined heat (the approach used in the traditional electric power paradigm), DPG systems employ numerous, but small¨EL BLOEMHOF, JOOST BOSMAN§, DAAN CROMMELIN¶, JASON FRANK , AND GUANGYUAN YANG Abstract. In electrical power

Frank, Jason

402

Analysis of statnamic load test data using a load shed distribution model.  

E-Print Network [OSTI]

??In the field of civil engineering, particularly structural foundations, low-cost options and time saving construction methods are important because both can be a burden on… (more)

Lowry, Sonia L

2005-01-01T23:59:59.000Z

403

Buildings Energy Data Book: 5.5 Thermal Distribution Systems  

Buildings Energy Data Book [EERE]

5 5 Typical Commercial Building Thermal Energy Distribution Design Load Intensities (Watts per SF) Distribution System Fans Other Central System Supply Fans Cooling Tower Fan Central System Return Fans Air-Cooled Chiller Condenser Fan 0.6 Terminal Box Fans 0.5 Exhaust Fans (2) Fan-Coil Unit Fans (1) Condenser Fans 0.6 Packaged or Split System Indoor Blower 0.6 Pumps Chilled Water Pump Condenser Water Pump Heating Water Pump Note(s): Source(s): 0.1 - 0.2 0.1 - 0.2 1) Unducted units are lower than those with some ductwork. 2) Strong dependence on building type. BTS/A.D. Little, Energy Consumption Characteristics of Commercial Building HVAC Systems, Volume II:Thermal Distribution, Auxiliary Equipment, and Ventilation, Oct. 1999, Table 3-1, p. 3-6. 0.3 - 1.0 0.1 - 0.3 0.1 - 0.4

404

Electrical and Production Load Factors  

E-Print Network [OSTI]

, Texas Abstract Load factors and operating hours of small and medium-sized industrial plants are analyzed to classify shift-work patterns and develop energy conservation diagnostic tools. This paper discusses two types of electric load factors... for each shift classification within major industry groups. The load factor based on billing hours (ELF) increases with operating hours from about 0.4 for a nominal one shift operation, to about 0.7 for around-the-clock operation. On the other hand...

Sen, T.; Heffington, W. M.

405

ENERGY STAR Building Upgrade Manual Chapter 7: Supplemental Load Reduction  

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

7: Supplemental Load 7: Supplemental Load Reduction Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In This Section Campaigns Commercial building design Communications resources Energy management guidance Financial resources Portfolio Manager Products and purchasing Recognition Research and reports Service and product provider (SPP) resources Success stories Target Finder

406

UTILITY-SCALE SOLAR LOAD CONTROL Richard Perez, ASRC  

E-Print Network [OSTI]

UPEX-02 UTILITY-SCALE SOLAR LOAD CONTROL Richard Perez, ASRC Christy Herig, NREL Ruth Mac Dougall output signals. Utility-scale SLC: when considering an entire utility or a distribution system be impractical to implement. There exists, however, an effective utility- scale SLC implementation via direct

Perez, Richard R.

407

PPL: distribution transformer | The Better Buildings Alliance  

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

Plug & Process Loads » Install a Plug & Process Loads » Install a distribution transformer that will reduce energy use by more than 15% using the distribution transformer specification Activities Technology Solutions Teams Lighting & Electrical Space Conditioning Plug & Process Loads Food Service Refrigeration Laboratories Energy Management & Information Systems Public Sector Teams Market Solutions Teams Install a distribution transformer that will reduce energy use by more than 15% using the distribution transformer specification The Plug & Process Loads team developed a low-voltage, dry-type distribution transformer specification that outlines energy-related product requirements. Purchasers can use this document to procure high-efficiency, high-quality products from manufacturers. The specification is unique, as

408

Request for Information for Distributed Wind Energy Systems ...  

Office of Environmental Management (EM)

or micro grid (to support local grid operations or offset nearby loads). Because wind turbines are characterized as being used in a "distributed application" based upon their...

409

How (Not) to Protect Genomic Data Privacy in a Distributed Network: Using Trail Re-identification to Evaluate and Design Privacy Protection Systems  

E-Print Network [OSTI]

1 How (Not) to Protect Genomic Data Privacy in a Distributed Network: Using Trail Re-specific genomic data into clinical practice and research raises serious privacy concerns. Various systems have being disclosed, they lack formal proofs. In this paper, we study the erosion of privacy when genomic

410

A detailed loads comparison of three building energy modeling programs:  

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

detailed loads comparison of three building energy modeling programs: detailed loads comparison of three building energy modeling programs: EnergyPlus, DeST and DOE-2.1E Title A detailed loads comparison of three building energy modeling programs: EnergyPlus, DeST and DOE-2.1E Publication Type Journal Year of Publication 2013 Authors Zhu, Dandan, Tianzhen Hong, Da Yan, and Chuang Wang Date Published 05/2013 Keywords building energy modeling program, building thermal loads, comparison, dest, DOE-2.1E, energyplus Abstract Building energy simulation is widely used to help design energy efficient building envelopes and HVAC systems, develop and demonstrate compliance of building energy codes, and implement building energy rating programs. However, large discrepancies exist between simulation results from different building energy modeling programs (BEMPs). This leads many users and stakeholders

411

Load flow analysis: Base cases, data, diagrams, and results  

SciTech Connect (OSTI)

This report describes how an electric utility system is modeled by using load flow techniques to establish a validated power flow case suitable for simulating and evaluating alternative system scenarios. Details of the load flow model are supported by additional technical and descriptive information intended to correlate modeled electrical system parameters with the corresponding physical equipment that makes up the system. Pictures and technical specifications of system equipment from the utility, public, or vendor are provided to support this association for many system components. The report summarizes the load flow model construction, simulation, and validation and describes the general capabilities of an information query system designed to access load flow parameters and other electrical system information.

Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; Peerenboom, J.P.

1997-10-01T23:59:59.000Z

412

Advanced islanding detection utilized in distribution systems with DFIG  

Science Journals Connector (OSTI)

Abstract The penetration of distributed generation (DG) in electrical power systems is rapidly increasing these days and more attention is drawn to maintain a healthy distribution system. Islanding operation of \\{DGs\\} is one of the biggest challenges to the distribution system stability. Fast and accurate islanding detection can avoid the possibility of damages to the \\{DGs\\} when they are un-intentionally reconnected to the grid and also provide useful information to the protection and automation design of the stand alone operated system. Rate of change of frequency (ROCOF) method is one of the most commonly employed anti-islanding protection techniques, it offers fast detection and easy implementation. However, it is often easily affected by the system disturbance and might not able to detect the islanding situation if the power imbalance between the DG and the load is small. This paper investigates an inter-lock method which can improve the performance of rate of change of frequency (ROCOF) by applying system impedance estimation. It was found that this new method can help in verifying the ROCOF relay islanding detection and avoiding false operations of ROCOF in a grid connected distribution system which has large load variations. The proposed method was verified using the experimental testing results derived from both an experimental testing model which includes an 8 kW Double Feed Induction Generator (DFIG) and a 9 MW DFIG simulation system.

Ke Jia; Tianshu Bi; Bohan Liu; David Thomas; Andrew Goodman

2014-01-01T23:59:59.000Z

413

Distribution System Research Priorities  

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

Mark McGranaghan Mark McGranaghan EPRI ELECTRICITY DISTRIBUTION SYSTEM WORKSHOP Crystal City, VA September 24, 2012 Distribution System Research Priorities 2 © 2012 Electric Power Research Institute, Inc. All rights reserved. The Power System Roadmaps start with a Vision Future Power System will require new technologies, infrastructure, and control systems 3 © 2012 Electric Power Research Institute, Inc. All rights reserved. R&D Roadmaps - Coordination is Critical Roadmaps are living documents 4 © 2012 Electric Power Research Institute, Inc. All rights reserved. Developing the next generation grid * Industry needs new technologies, communication protocols, and information management methods - More variable generation sources and controllable loads - Aging infrastructure

414

Advanced Design Studies. Final report  

SciTech Connect (OSTI)

The ARIES-CS project was a multi-year multi-institutional project to assess the feasibility of a compact stellarator as a fusion power plant. The work herein describes efforts to help design one aspect of the device, the divertor, which is responsible for the removal of particle and heat flux from the system, acting as the first point of contact between the magnetically confined hot plasma and the outside world. Specifically, its location and topology are explored, extending previous work on the sub ject. An optimized design is determined for the thermal particle flux using a suite of 3D stellarator design codes which trace magnetic field lines from just inside the confined plasma edge to their strike points on divertor plates. These divertor plates are specified with a newly developed plate design code. It is found that a satisfactory thermal design exists which maintains the plate temperature and heat load distribution below tolerable engineering limits. The design is unique, including a toroidal taper on the outboard plates which was found to be important to our results. The maximum thermal heat flux for the final design was 3.61 M W/m2 and the maximum peaking factor was 10.3, below prescribed limits of 10 M W/m2 and 15.6, respectively. The median length of field lines reaching the plates is about 250 m and their average angle of inclination to the surface is 2 deg. Finally, an analysis of the fast alphas, resulting from fusion in the core, which escape the plasma was performed. A method is developed for obtaining the mapping from magnetic coordinates to real-space coordinates for the ARIES-CS. This allows the alpha exit locations to be identified in real space for the first time. These were then traced using the field line algorithm as well as a guiding center routine accounting for their mass, charge, and specific direction and energy. Results show that the current design is inadequate for accommodating the alpha heat flux, capturing at most 1/3 of lost alphas. However the distribution of the alphas on the device first wall indicates that a viable solution likely exists. It is noted that future designs must be sought which specifically address the fusion alphas through an integrated approach involving physics and engineering teams.

Steiner, Don [Rensselaer Polytechnic Institute, Troy, NY (United States)

2012-12-01T23:59:59.000Z

415

electric load data | OpenEI Community  

Open Energy Info (EERE)

load data Home Sfomail's picture Submitted by Sfomail(48) Member 17 May, 2013 - 12:03 Commercial and Residential Hourly Load Data Now Available on OpenEI building load building...

416

FINAL PROJECT REPORT LOAD MODELING TRANSMISSION RESEARCH  

E-Print Network [OSTI]

Bulk System Load  Model in GE PSLF TM for Investigating the a Bulk System Load Model in GE PSLF TM for Investigating thecomposite load model in  the PSLF simulation software; the 

Lesieutre, Bernard

2013-01-01T23:59:59.000Z

417

Ductless Hydronic Distribution  

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

DUCTLESS HYDRONIC DUCTLESS HYDRONIC DISTRIBUTION Alliance for Residential Building Innovation David Springer, Davis Energy Group Context  Target: Builders of high performance new homes & deep retrofits  Why is this technology key to meeting performance goals of future homes?  Distribution Efficiency * Distribution efficiency for well insulated, tight ducts in attics ≈ 85% * Duct energy losses drives placement of ducts inside conditioned space, which adds cost and interferes with structure and architecture * Ductless hydronic systems can approach 100% distribution efficiency; piping needs little space  Delivery Energy * Fans: 0.58 W/cfm or 9 (heating) to 27 (cooling) W/kBtuh * Pumps: 8 W/gpm, or 0.8 W/kBtuh Context  Sizing * Conventional systems tend to be too large for low load homes

418

Distributed leadership and social networks in the school- based development of the International Baccalaureate's Middle Years Program in a Venezuelan K-12  

E-Print Network [OSTI]

this section the social distribution of design tasks will beof the social distribution of curriculum design and teacherThe social distribution of MYP design tasks (reorganization

Bolivar, Jose M.

2009-01-01T23:59:59.000Z

419

Determining Electric Motor Load and Efficiency  

Broader source: Energy.gov [DOE]

To compare the operating costs of an existing standard motor with an appropriately-sized energy-efficient replacement, you need to determine operating hours, efficiency improvement values, and load. Part-load is a term used to describe the actual load served by the motor as compared to the rated full-load capability of the motor. Motor part-loads may be estimated through using input power, amperage, or speed measurements. This fact sheet briefly discusses several load estimation techniques.

420

Strategies for mitigating risk to buildings from abnormal load events  

Science Journals Connector (OSTI)

Building structures customarily are designed to withstand loads from their occupants and the natural environment. The normal design process provides a measure of structural integrity that is also available to withstand events that traditionally have been outside the design envelope, including accidents, misuse, and sabotage. Changes in design and construction practices over the past several decades have lessened inherent robustness in certain modern structural systems, making them vulnerable to such events. Social and political factors also have led to an increase in hazardous events that may pose a risk to buildings. Finally, public awareness of building safety has increased as a result of well-publicised natural and man-made disasters. Building practices to mitigate the risk of abnormal loads and ensuing unacceptable damage or collapse can be improved using concepts of structural reliability and risk analysis. This paper summarises the basis for such practices, from the perspective of a structural engineer.

Bruce R. Ellingwood

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distribution design load" 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

Influence of loading rate on axially loaded piles in clay  

E-Print Network [OSTI]

, Haas and Saxe Yong and Japp. Arulanandan and Shen 4 ~ ~ ~ ~ ~ ~ 4 5 5 6 6 13 13 21 21 22 22 23 23 24 24 Ladd, Hi11iams, Connell and Edgars Berre and Bjerrum. Stevenson. King Vaid and Campanella. Lacasse. Rigqins. CHAPTER V... of the Gain in Strength versus Shearing Rate Plots 4. Select Regression, PI, LI, W, SO(REF) 76 Cases for 152 Laboratory Tests 5. Collected Data for Pile Load Test Results. 6. Data Set References for Pile Load Tests. Page 14 36 54 61 7. Semi...

Garland Ponce, Enrique Eduardo

2012-06-07T23:59:59.000Z

422

Self-aligning biaxial load frame  

DOE Patents [OSTI]

An self-aligning biaxial loading apparatus for use in testing the strength of specimens while maintaining a constant specimen centroid during the loading operation. The self-aligning biaxial loading apparatus consists of a load frame and two load assemblies for imparting two independent perpendicular forces upon a test specimen. The constant test specimen centroid is maintained by providing elements for linear motion of the load frame relative to a fixed crosshead, and by alignment and linear motion elements of one load assembly relative to the load frame.

Ward, Michael B. (Idaho Falls, ID); Epstein, Jonathan S. (Idaho Falls, ID); Lloyd, W. Randolph (Idaho Falls, ID)

1994-01-01T23:59:59.000Z

423

Self-aligning biaxial load frame  

DOE Patents [OSTI]

An self-aligning biaxial loading apparatus for use in testing the strength of specimens while maintaining a constant specimen centroid during the loading operation. The self-aligning biaxial loading apparatus consists of a load frame and two load assemblies for imparting two independent perpendicular forces upon a test specimen. The constant test specimen centroid is maintained by providing elements for linear motion of the load frame relative to a fixed cross head, and by alignment and linear motion elements of one load assembly relative to the load frame. 3 figures.

Ward, M.B.; Epstein, J.S.; Lloyd, W.R.

1994-01-18T23:59:59.000Z

424

Load Pocket Forecasting Software E. A. Feinberg, D. Genethliou, J.T. Hajagos, B.G. Irrgang, and R. J. Rossin  

E-Print Network [OSTI]

pockets and to modify the existing ones. Index Terms--Load forecasting, power system planning I and load data, estimates weather-normalized electric loads, computes design- day parameters, computes data, extrapolating past load growth patterns into the future. The most common trending method

Feinberg, Eugene A.

425

Definition: Deferred Distribution Capacity Investments | Open Energy  

Open Energy Info (EERE)

Deferred Distribution Capacity Investments Deferred Distribution Capacity Investments Jump to: navigation, search Dictionary.png Deferred Distribution Capacity Investments As with the transmission system, reducing the load and stress on distribution elements increases asset utilization and reduces the potential need for upgrades. Closer monitoring and load management on distribution feeders could potentially extend the time before upgrades or capacity additions are required.[1] Related Terms load, transmission lines, transmission line, sustainability References ↑ SmartGrid.gov 'Description of Benefits' An inl LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ine Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Deferred_Distribution_Capacity_Investments&oldid=502613

426

Real-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation  

E-Print Network [OSTI]

Real-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation Lingwen Gan for handling the un- certainties of renewable generation. Traditionally, demand response has been focused in renewable generation. In this paper, we propose a real-time distributed deferrable load control algorithm

Low, Steven H.

427

Energy-Agile Laptops: Demand Response of Mobile Plug Loads Using Sensor/Actuator Networks  

E-Print Network [OSTI]

Energy-Agile Laptops: Demand Response of Mobile Plug Loads Using Sensor/Actuator Networks Nathan@me.berkeley.edu Abstract--This paper explores demand response techniques for managing mobile, distributed loads with on observed. Our first simulation study explores a classic demand response scenario in which a large number

Culler, David E.

428

A dynamic load-balancing scheme for the parcel hub-scheduling problem  

Science Journals Connector (OSTI)

In this paper, a dynamic load-balancing algorithm (DLBA) was proposed to solve the parcel hub-scheduling problem (PHSP), which is a combinatorial optimization problem commonly found at a parcel consolidation terminal in the parcel delivery industry (PDI). ... Keywords: Cross docking, Distribution, Dynamic load balancing, Parcel consolidation

Douglas L. McWilliams

2009-10-01T23:59:59.000Z

429

Monitoring of Electrical End-Use Loads in Commercial Buildings  

E-Print Network [OSTI]

Southern California Edison is currently conducting a program to collect end-use metered data from commercial buildings in its service area. The data will provide actual measurements of end-use loads and will be used in research and in designing...

Martinez, M.; Alereza, T.; Mort, D.

1988-01-01T23:59:59.000Z

430

Stress distribution under heavy haul transporters  

SciTech Connect (OSTI)

In a previous cited paper, comparisons were made between the relationship of maximum vertical compressive stress generated with depth by various vehicles, including an automobile, a fully-loaded 18-wheel tractor-trailer combination, a test-loaded 12-axle, 96-wheel heavy transporter trailer, and the transporter prime mover, also test loaded. This paper extends the usefulness of those comparisons by adding a 12-axle, 144-wheel heavy transporter trailer. The transporter is a one-and-one-half-wide hydraulic platform trailer test loaded to 110% of the loading from a Westinghouse steam generator. The total weight on the transporter trailer tires is just over 675 tons. This trailer will be used in an upcoming steam generator replacement project. In addition to examining the distribution of maximum vertical stress with depth, the paper looks at the variation of loading beneath the maximum loaded axle of the transporter at different depths.

Davie, J.R.; Senapathy, H. [Bechtel Power Corp., Gaithersburg, MD (United States)

1999-11-01T23:59:59.000Z

431

Load-dependent Optimization of Honeycombs for Sandwich Components – New Possibilities by Using Additive Layer Manufacturing  

Science Journals Connector (OSTI)

Abstract Due to their feasible geometric complexity, additive layer manufacturing (ALM) processes show a highpotential for the production of lightweight components.Therefore, ALM processes enable the realization of bionic-designedcomponents like honeycombs, which are optimized depending upon load and outer boundary conditions.This optimization is based on a closed-loop, three-steps methodology: At first, each honeycomb is conformed to the surface of the part. Secondly, the structure is optimizedfor lightweight design.It is possible to achieve a homogeneous stress distribution in the part by varying the wall thickness, honeycombdiameter and the amount of honeycombs, depending on the subjected stresses and strains. At last, the functional components like threads or bearing carriers are integrated directly into the honeycomb core.Using all these steps as an iterative process, it is possible to reduce the mass of sandwich components about 50 percent compared to conventional approaches.

Fabian Riss; Johannes Schilp; Gunther Reinhart

2014-01-01T23:59:59.000Z

432

Wind tunnel simulation of wind loading on a solid structure of revolution  

Science Journals Connector (OSTI)

The wind tunnel simulations of wind loading on a solid structure of revolution ... smooth and five rough surfaces were conducted using wind tunnel tests. Time-mean and fluctuating pressure ... distributions. The ...

Le-Tian Yang; Zhi-Fu Gu

2010-08-01T23:59:59.000Z

433

Lake eutrophication: Identification of tributary nutrient loading and sediment resuspension dynamics  

Science Journals Connector (OSTI)

In a shallow lake system two problems are of particular significance. It is important to know the distribution of (polluting) nutrient loads among various agricultural and municipal sources within the lake's catchment. It is also important to know what ...

M. B. Beck

1985-11-01T23:59:59.000Z

434

A Hierarchical Replica Location Approach Based on Cache Mechanism and Load Balancing in Data Grid  

Science Journals Connector (OSTI)

According to data grid characteristics and data-sharing characteristics in distributed environments, we present...RepliLoc..., a hierarchical replica location approach based on Cache mechanism and load balancing....

Baoyan Song; Yanying Mao; Yan Wang; Derong Shen

2008-01-01T23:59:59.000Z

435

Fuel Cell Power Model Version 2: Startup Guide, System Designs, and Case Studies. Modeling Electricity, Heat, and Hydrogen Generation from Fuel Cell-Based Distributed Energy Systems  

SciTech Connect (OSTI)

This guide helps users get started with the U.S. Department of Energy/National Renewable Energy Laboratory Fuel Cell Power (FCPower) Model Version 2, which is a Microsoft Excel workbook that analyzes the technical and economic aspects of high-temperature fuel cell-based distributed energy systems with the aim of providing consistent, transparent, comparable results. This type of energy system would provide onsite-generated heat and electricity to large end users such as hospitals and office complexes. The hydrogen produced could be used for fueling vehicles or stored for later conversion to electricity.

Steward, D.; Penev, M.; Saur, G.; Becker, W.; Zuboy, J.

2013-06-01T23:59:59.000Z

436

Development of Zinc/Bromine Batteries for Load-Leveling Applications: Phase 1 Final Report  

SciTech Connect (OSTI)

The Zinc/Bromine Load-Leveling Battery Development contract (No. 40-8965) was partitioned at the outset into two phases of equal length. Phase 1 started in September 1990 and continued through December 1991. In Phase 1, zinc/bromine battery technology was to be advanced to the point that it would be clear that the technology was viable and would be an appropriate choice for electric utilities wishing to establish stationary energy-storage facilities. Criteria were established that addressed most of the concerns that had been observed in the previous development efforts. The performances of 8-cell and 100-cell laboratory batteries demonstrated that the criteria were met or exceeded. In Phase 2, 100-kWh batteries will be built and demonstrated, and a conceptual design for a load-leveling plant will be presented. At the same time, work will continue to identify improved assembly techniques and operating conditions. This report details the results of the efforts carried out in Phase 1. The highlights are: (1) Four 1-kWh stacks achieved over 100 cycles, One l-kWh stack achieved over 200 cycles, One 1-kWh stack achieved over 300 cycles; (2) Less than 10% degradation in performance occurred in the four stacks that achieved over 100 cycles; (3) The battery used for the zinc loading investigation exhibited virtually no loss in performance for loadings up to 130 mAh/cm{sup 2}; (4) Charge-current densities of 50 ma/cm{sup 2} have been achieved in minicells; (5) Fourteen consecutive no-strip cycles have been conducted on the stack with 300+ cycles; (6) A mass and energy balance spreadsheet that describes battery operation was completed; (7) Materials research has continued to provide improvements in the electrode, activation layer, and separator; and (8) A battery made of two 50-cell stacks (15 kWh) was produced and delivered to Sandia National Laboratories (SNL) for testing. The most critical development was the ability to assemble a battery stack that remained leak free. The task of sealing the battery stack using vibration welding has undergone significant improvement resulting in a viable production process. Through several design iterations, a solid technology base for larger battery stack designs was established. Internal stack stresses can now be modeled, in addition to fluid velocity and fluid pressure distribution, through the use of a finite element analysis computer program. Additionally, the Johnson Controls Battery Group, Inc. (JCBGI) proprietary FORTRAN model has been improved significantly, enabling accurate performance predictions. This modeling was used to improve the integrity and performance of the battery stacks, and should be instrumental in reducing the turnaround time from concept to assembly.

Eidler, Phillip

1999-07-01T23:59:59.000Z

437

Investigation of residential central air conditioning load shapes in NEMS  

SciTech Connect (OSTI)

This memo explains what Berkeley Lab has learned about how the residential central air-conditioning (CAC) end use is represented in the National Energy Modeling System (NEMS). NEMS is an energy model maintained by the Energy Information Administration (EIA) that is routinely used in analysis of energy efficiency standards for residential appliances. As part of analyzing utility and environmental impacts related to the federal rulemaking for residential CAC, lower-than-expected peak utility results prompted Berkeley Lab to investigate the input load shapes that characterize the peaky CAC end use and the submodule that treats load demand response. Investigations enabled a through understanding of the methodology by which hourly load profiles are input to the model and how the model is structured to respond to peak demand. Notably, it was discovered that NEMS was using an October-peaking load shape to represent residential space cooling, which suppressed peak effects to levels lower than expected. An apparent scaling down of the annual load within the load-demand submodule was found, another significant suppressor of the peak impacts. EIA promptly responded to Berkeley Lab's discoveries by updating numerous load shapes for the AEO2002 version of NEMS; EIA is still studying the scaling issue. As a result of this work, it was concluded that Berkeley Lab's customary end-use decrement approach was the most defensible way for Berkeley Lab to perform the recent CAC utility impact analysis. This approach was applied in conjunction with the updated AEO2002 load shapes to perform last year's published rulemaking analysis. Berkeley Lab experimented with several alternative approaches, including modifying the CAC efficiency level, but determined that these did not sufficiently improve the robustness of the method or results to warrant their implementation. Work in this area will continue in preparation for upcoming rulemakings for the other peak coincident end uses, commercial air conditioning and distribution transformers.

Hamachi LaCommare, Kristina; Marnay, Chris; Gumerman, Etan; Chan, Peter; Rosenquist, Greg; Osborn, Julie

2002-05-01T23:59:59.000Z

438

Network Design Formulations, Modeling, and Solution Algorithms for Goods Movement Strategic Planning  

E-Print Network [OSTI]

1974. "Multicommodity distribution system design by BendersBenefit distribution and equity in road network designnetwork design problem with combined trip distribution and

Apivatanagul, Pruttipong

2008-01-01T23:59:59.000Z

439

{Control of Residential Load Management Networks Using Real Time Pricing  

E-Print Network [OSTI]

loads to deliver load following and regulation, withproducts like load following and spinning reserve.following of constant power references. Chapter 7 Implications of Load

Burke, William Jerome

2010-01-01T23:59:59.000Z

440

Non-transposed, three phase transmission lines: a study of their effect on load voltages.  

E-Print Network [OSTI]

TRANSMISSION LINES A S'PJDY OF THEIR EFFECT ON LOAD VOLTAGES A Thesis By Robert Dean Chenoweth August 1951 NON-TRANSPOSED~ THREE PHASE TRANSMISSION LINES A STUDY OF THEIR EFFECT ON LOAD VOLTAGES A Thesis Submitted to the Faculty of the Agricultural... all large blocks of alternating current power are transmitted from the generating station to the load by means of three phase transmission lines. With present day equipment this method is economical and when ~ properly designed gives very...

Chenoweth, Robert Dean

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "distribution design load" 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

Electricity Distribution  

Science Journals Connector (OSTI)

High voltage (HV) distribution grids have nominal voltages of up ... the grid that connects distribution to the transmission substations and also supplies large industrial customers requiri...

Tomás Gómez

2013-01-01T23:59:59.000Z

442

Building Energy Software Tools Directory: Popolo Utility Load Calculation  

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

Popolo Utility Load Calculation Popolo Utility Load Calculation Popolo Utility Load Calculation is a collection of classes for calculating various heat transfer phenomena. The routines have been written from scratch in C#, and present a modern Applications Programming Interface (API) for .NET Framework programmers, allowing wrappers to be written for very high level languages. It contains classes to calculate solid conduction, convective heat transfer near wall surfaces, air ventilation, radiative heat balance of wall surfaces, transmitted solar radiation through a window, and so on. Users should build up these classes to simulate a whole complex building system. A sample source code to build test cases of BESTEST are provided. Since all the source code is distributed under the GNU General Public License, they can be freely

443

Plug and Process Loads Capacity and Power Requirements Analysis  

SciTech Connect (OSTI)

This report addresses gaps in actionable knowledge that would help reduce the plug load capacities designed into buildings. Prospective building occupants and real estate brokers lack accurate references for plug and process load (PPL) capacity requirements, so they often request 5-10 W/ft2 in their lease agreements. Limited initial data, however, suggest that actual PPL densities in leased buildings are substantially lower. Overestimating PPL capacity leads designers to oversize electrical infrastructure and cooling systems. Better guidance will enable improved sizing and design of these systems, decrease upfront capital costs, and allow systems to operate more energy efficiently. The main focus of this report is to provide industry with reliable, objective third-party guidance to address the information gap in typical PPL densities for commercial building tenants. This could drive changes in negotiations about PPL energy demands.

Sheppy, M.; Gentile-Polese, L.

2014-09-01T23:59:59.000Z

444

Inductrack III configuration--a maglev system for high loads  

DOE Patents [OSTI]

Inductrack III configurations are suited for use in transporting heavy freight loads. Inductrack III addresses a problem associated with the cantilevered track of the Inductrack II configuration. The use of a cantilevered track could present mechanical design problems in attempting to achieve a strong enough track system such that it would be capable of supporting very heavy loads. In Inductrack III, the levitating portion of the track can be supported uniformly from below, as the levitating Halbach array used on the moving vehicle is a single-sided one, thus does not require the cantilevered track as employed in Inductrack II.

Post, Richard F

2013-11-12T23:59:59.000Z

445

Finding Computed Diamonds in a Virtual Rough: Screening and Evaluation of Conformations and Energetics from Drug Discovery to Computational Enzyme Design  

E-Print Network [OSTI]

a) the EDGEScore distribution for design 1; b) the EDGEScorec) the EDGEScore distribution for design 2; d) the EDGEScorea) the EDGEScore distribution for design 1; b) the EDGEScore

Johnson, Scott Arne

2012-01-01T23:59:59.000Z

446

Improved catalyst loading reduces guard reactor fouling  

SciTech Connect (OSTI)

A new catalyst-loading strategy reduced the fouling tendency of the gas oil hydrotreater guard reactors at Syncrude Canada Ltd.'s heavy-crude upgrading facilities. Studies conducted on the guard reactors were designed to determine the thermal stability of the coker gas oil and to understand the properties of the fouling material. Small particles (described as fines) were present in the upper section of the removed catalyst bed. This part of the bed was then replaced in one of three ways. One way was to replace the catalyst with used, nonregenerated catalyst, and cover the catalyst with nonactive support balls, 10 and 13 mm in diameter. The second way was to fill the entire space with nonactive support balls, and the third way was to fill with regenerated oxidic catalyst combined with semiactive support balls (unsulfided).

Sanford, E.C.; Kirchen, R.P. (Syncrude Canada Ltd., Edmonton (CA))

1988-12-19T23:59:59.000Z

447

Interval type-2 fuzzy PID load frequency controller using Big Bang-Big Crunch optimization  

Science Journals Connector (OSTI)

This paper proposes an optimization based design methodology of interval type-2 fuzzy PID (IT2FPID) controllers for the load frequency control (LFC) problem. Hitherto, numerous fuzzy logic control structures are proposed as a solution of LFC. However, ... Keywords: Big Bang-Big Crunch optimization, Interval type-2 fuzzy PID controllers, Load frequency control

Engin Yesil

2014-02-01T23:59:59.000Z

448

Reliability-Based Load and Resistance Factor Rating Using In-Service Data  

E-Print Network [OSTI]

Reliability-Based Load and Resistance Factor Rating Using In-Service Data Baidurya Bhattacharya, M-dependent maximum live load. An illustrative example uses in-service peak-strain data from ambient traffic collected evaluation techniques are based on design-based deterministic equations that use limited site-specific data

Bhattacharya, Baidurya

449

Evaluation criteria and procedure for nuclear power plant temporary loads/temporary conditions  

SciTech Connect (OSTI)

Operating nuclear power plants frequently encounter temporary loads/temporary conditions in plant normal operation and maintenance (O and M). The most obvious examples are installation of temporary shielding and scaffolding, or removal of certain supports, to facilitate plant refueling and maintenance outage activities. Short-term operability calls such as those due to snubber failures or unanticipated transients also create temporary loads/temporary conditions. These temporary situations often generate loads that are outside the original plant design basis. Consequently, separate evaluations are needed to ensure that plant structures, systems and components (SSCs) maintain their integrity and functionality while these temporary loads are active. Also, the temporary structures and components need to be evaluated to ensure their integrity during the temporary duration of use. Three types of approaches are normally adopted either individually or in combination to perform needed evaluations: relax the design allowables, use a more refined analysis model but retain the design basis acceptance criteria, or offset temporary loads by eliminating or reducing part of the design basis loads based on short duration considerations. This paper reviews temporary loading/temporary condition issues and the current industry criteria and procedures proposed in dealing with these issues. Where appropriate, regulatory positions on temporary loads/temporary conditions are discussed.

Tang, H.T. [Electric Power Research Inst., Palo Alto, CA (United States); Minichiello, J.C. [Commonwealth Edison Co., Downers Grove, IL (United States); Olson, D.E. [Sargent and Lundy, Chicago, IL (United States)

1996-12-01T23:59:59.000Z

450

Most Viewed Documents - Power Generation and Distribution | OSTI, US Dept  

Office of Scientific and Technical Information (OSTI)

Most Viewed Documents - Power Generation and Distribution Most Viewed Documents - Power Generation and Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; et al. (1994) ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) Systems and economic analysis of microalgae ponds for conversion of CO{sub 2} to biomass. Quarterly technical progress report, September 1993--December 1993 Benemann, J.R.; Oswald, W.J. (1994) Load flow analysis: Base cases, data, diagrams, and results Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; et al. (1997) Multilevel converters -- A new breed of power converters Lai, J.S. [Oak Ridge National Lab., TN (United States). Engineering Technology Div.]; Peng, F.Z. [Univ. of Tennessee, Knoxville, TN (United

451

Mini Renewable Hybrid Distributed Power Plants for Lebanon  

Science Journals Connector (OSTI)

Lebanon has spent billions of dollars on its electricity sector, but the demand is higher than available power. In peak demand time, blackouts are the major phenomena in almost all the Lebanese regions. As the world today is going into green energy, this project This step will minimize green house gas emissions, increase the reliability of the grid finally, increase the power generation capacity in Lebanon. For all the mentioned problems, distributed generation using hybrid-renewable energy systems is proposed as a future solution for the Lebanese energy sector. Losses in the transmission and distribution system will be reduced since power is generated near loads. The grid availability and stability will increase and individuals can save money in their electricity bill and finally the generated power is clean and nonpolluting. A study of a design will be launched, including simulation using MATLAB/SIMULINK.

M.B. Najjar; Edmond Ghoulam; Hanna Fares

2012-01-01T23:59:59.000Z

452

Reliability improvement of distribution systems using SSVR  

Science Journals Connector (OSTI)

This paper presents a reliability assessment algorithm for distribution systems using a Static Series Voltage Regulator (SSVR). Furthermore, this algorithm considers the effects of Distributed Generation (DG) units, alternative sources, system reconfiguration, load shedding and load adding on distribution system reliability indices. In this algorithm, load points are classified into 8 types and separated restoration times are considered for each class. Comparative studies are conducted to investigate the impacts of DG and alternative source unavailability on the distribution system reliability. For reliability assessment, the customer-oriented reliability indices such as SAIFI, SAIDI, CAIDI ASUI and also load- and energy-oriented indices such as ENS and AENS are evaluated. The effectiveness of the proposed algorithm is examined on the two standard distribution systems consisting of 33 and 69 nodes. The best location of the SSVR in distribution systems is determined based on different reliability indices, separately. Results show that the proposed algorithm is efficient for large-scale radial distribution systems and can accommodate the effects of fault isolation and load restoration.

Mehdi Hosseini; Heidar Ali Shayanfar; Mahmoud Fotuhi-Firuzabad

2009-01-01T23:59:59.000Z

453

Macro Data Load: An Efficient Mechanism for Enhancing Loaded Data Reuse  

E-Print Network [OSTI]

Macro Data Load: An Efficient Mechanism for Enhancing Loaded Data Reuse Lei Jin and Sangyeun Cho, Member, IEEE Abstract--This paper presents a study on macro data load, a novel mechanism to increase the amount of loaded data reuse within a processor. A macro data load brings into the processor a maximum

Cho, Sangyeun

454

Reducing Plug and Process Loads for a Large Scale, Low Energy Office Building: NREL's Research Support Facility; Preprint  

SciTech Connect (OSTI)

This paper documents the design and operational plug and process load energy efficiency measures needed to allow a large scale office building to reach ultra high efficiency building goals. The appendices of this document contain a wealth of documentation pertaining to plug and process load design in the RSF, including a list of equipment was selected for use.

Lobato, C.; Pless, S.; Sheppy, M.; Torcellini, P.

2011-02-01T23:59:59.000Z

455

Project W320 52-inch diameter equipment container load test: Test report  

SciTech Connect (OSTI)

This test report summarizes testing activities and documents the results of the load tests performed on-site and off-site to structural qualify the 52-inch equipment containers designed and fabricated under Project W-320.

Bellomy, J.R.

1995-02-22T23:59:59.000Z

456

Load Schedule Coordination for a Large Linear Accelerator: An Operation Powerplay Concept  

E-Print Network [OSTI]

Operation Powerplay is a viable electric load management program developed and tested with Department of Energy funding and support. It is a concept designed to provide financial benefits to a utility and one or more of its customers through...

Johnson, W. H.

1984-01-01T23:59:59.000Z

457

Resistance factors calibration and its application using static load test data for driven steel pipe piles  

Science Journals Connector (OSTI)

This paper presents the reliability-based resistance factor calibration of driven steel pipe piles and the implementation of Load and Resistance Factor Design (LRFD) on ... framework based on reliability theory u...

Jae Hyun Park; Jungwon Huh; Kyung Jun Kim…

2013-07-01T23:59:59.000Z

458

Dynamic Load Partitioning Strategies for Managing Data of Space and Time Heterogeneity in Parallel SAMR Applications  

Science Journals Connector (OSTI)

This paper presents the design and experimental evaluation of two dynamic load partitioning and balancing strategies for parallel Structured Adaptive Mesh Refinement (SAMR) applications: the Level-based Partit...

Xiaolin Li; Manish Parashar

2003-01-01T23:59:59.000Z

459

E-Print Network 3.0 - ankle joint loading Sample Search Results  

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

and Information Sciences 54 Biomimetic Design of an Under-Actuated Leg Exoskeleton For Load-Carrying Augmentation Summary: Figure 2.6 Gait data showing the trajectory of the hip,...

460

Autonomous exoskeleton reduces metabolic cost of human walking during load carriage  

E-Print Network [OSTI]

Background: Many soldiers are expected to carry heavy loads over extended distances, often resulting in physical and mental fatigue. In this study, the design and testing of an autonomous leg exoskeleton is presented. The ...

Mooney, Luke M.

Note: This page contains sample records for the topic "distribution design load" 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

Continuous Price Regulation to Form the Desired Load Schedule of a Power System  

Science Journals Connector (OSTI)

A price control mechanism is designed to form the ... for a power system. A method of price computation with regard for the fuel consumption of generating units and load types...

G. G. Grebenyuk; M. M. Solov'ev

2004-05-01T23:59:59.000Z

462

PASSIVE DETECTION OF VEHICLE LOADING  

SciTech Connect (OSTI)

The Digital Imaging and Remote Sensing Laboratory (DIRS) at the Rochester Institute of Technology, along with the Savannah River National Laboratory is investigating passive methods to quantify vehicle loading. The research described in this paper investigates multiple vehicle indicators including brake temperature, tire temperature, engine temperature, acceleration and deceleration rates, engine acoustics, suspension response, tire deformation and vibrational response. Our investigation into these variables includes building and implementing a sensing system for data collection as well as multiple full-scale vehicle tests. The sensing system includes; infrared video cameras, triaxial accelerometers, microphones, video cameras and thermocouples. The full scale testing includes both a medium size dump truck and a tractor-trailer truck on closed courses with loads spanning the full range of the vehicle's capacity. Statistical analysis of the collected data is used to determine the effectiveness of each of the indicators for characterizing the weight of a vehicle. The final sensing system will monitor multiple load indicators and combine the results to achieve a more accurate measurement than any of the indicators could provide alone.

Garrett, A.

2012-01-03T23:59:59.000Z

463

Mobile loading transuranic waste at small quantity sites in the Department of Energy complex-10523  

SciTech Connect (OSTI)

Los Alamos National Laboratory, Carlsbad Office (LANL-CO), operates mobile loading operations for all of the large and small quantity transuranic (TRU) waste sites in the Department of Energy (DOE) complex. The mobile loading team performs loading and unloading evolutions for both contact handled (CH) and remote handled (RH) waste. For small quantity sites, many of which have yet to remove their TRU waste, the mobile loading team will load shipments that will ship to Idaho National Laboratory, a centralization site, or ship directly to the Waste Isolation Pilot Plant (WIPP). For example, Argonne National Laboratory and General Electric Vallecitos Nuclear Center have certified programs for RH waste so they will ship their RH waste directly to WIPP. Many of the other sites will ship their waste to Idaho for characterization and certification. The Mobile Loading Units (MLU) contain all of the necessary equipment needed to load CH and RH waste into the appropriate shipping vessels. Sites are required to provide additional equipment, such as cranes, fork trucks, and office space. The sites are also required to provide personnel to assist in the shipping operations. Each site requires a site visit from the mobile loading team to ensure that all of the necessary site equipment, site requirements and space for shipping can be provided. The mobile loading team works diligently with site representatives to ensure that all safety and regulatory requirements are met. Once the waste is ready and shipping needs are met, the mobile loading team can be scheduled to ship the waste. The CH MLU is designed to support TRUPACT-II and HalfPACT loading activities wherever needed within the DOE complex. The team that performs the mobile loading operation has obtained national certification under DOE for TRUPACT-II and HalfPACT loading and shipment certification. The RH MLU is designed to support removable lid canister (RLC) and RH-72B cask loading activities wherever needed within the DOE complex. The team that performs the mobile loading operation has obtained national certification under DOE for RLC and RH-72B Cask loading and shipment certification. To date, the mobile loading team has successfully made 2,131 CH and RH TRU waste shipments. The mobile loading team continues to provide each site with safe and compliant loading ofTRU waste.

Carter, Mitch [Los Alamos National Laboratory; Howard, Bryan [Los Alamos National Laboratory; Weyerman, Wade [Los Alamos National Laboratory; Mctaggart, Jerri [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

464

Online Load Balancing for Related Machines 1 Piotr Berman  

E-Print Network [OSTI]

), the load of a machine i in schedule s and Load(s), the load of entire schedule s as follows: load(s; i) = 1On­line Load Balancing for Related Machines 1 Piotr Berman The Pennsylvania State University of randomized algorithms for this problem. Key Words: on­line algorithm, load balancing, related machines

Charikar, Moses

465

Design of a low-cost worm-gear system as teaching tool for controller design  

E-Print Network [OSTI]

connected with a potentiometer and a set of removable loads. Four controllers, the PID controller, LQR controller, H[] controller and fuzzy logic controller are designed, simulated and implemented. These controllers are designed in the continuous time domain...

Xu, Donghang

2012-06-07T23:59:59.000Z

466

Explicit spatial scattering for load balancing in conservatively synchronized parallel discrete-event simulations  

SciTech Connect (OSTI)

We re-examine the problem of load balancing in conservatively synchronized parallel, discrete-event simulations executed on high-performance computing clusters, focusing on simulations where computational and messaging load tend to be spatially clustered. Such domains are frequently characterized by the presence of geographic 'hot-spots' - regions that generate significantly more simulation events than others. Examples of such domains include simulation of urban regions, transportation networks and networks where interaction between entities is often constrained by physical proximity. Noting that in conservatively synchronized parallel simulations, the speed of execution of the simulation is determined by the slowest (i.e most heavily loaded) simulation process, we study different partitioning strategies in achieving equitable processor-load distribution in domains with spatially clustered load. In particular, we study the effectiveness of partitioning via spatial scattering to achieve optimal load balance. In this partitioning technique, nearby entities are explicitly assigned to different processors, thereby scattering the load across the cluster. This is motivated by two observations, namely, (i) since load is spatially clustered, spatial scattering should, intuitively, spread the load across the compute cluster, and (ii) in parallel simulations, equitable distribution of CPU load is a greater determinant of execution speed than message passing overhead. Through large-scale simulation experiments - both of abstracted and real simulation models - we observe that scatter partitioning, even with its greatly increased messaging overhead, significantly outperforms more conventional spatial partitioning techniques that seek to reduce messaging overhead. Further, even if hot-spots change over the course of the simulation, if the underlying feature of spatial clustering is retained, load continues to be balanced with spatial scattering leading us to the observation that spatial scattering can often obviate the need for dynamic load balancing.

Thulasidasan, Sunil [Los Alamos National Laboratory; Kasiviswanathan, Shiva [Los Alamos National Laboratory; Eidenbenz, Stephan [Los Alamos National Laboratory; Romero, Philip [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

467

Investigation of thermochemical biorefinery sizing and environmental sustainability impacts for conventional supply system and distributed pre-processing supply system designs  

SciTech Connect (OSTI)

The 2011 US Billion-Ton Update estimates that by 2030 there will be enough agricultural and forest resources to sustainably provide at least one billion dry tons of biomass annually, enough to displace approximately 30% of the country's current petroleum consumption. A portion of these resources are inaccessible at current cost targets with conventional feedstock supply systems because of their remoteness or low yields. Reliable analyses and projections of US biofuels production depend on assumptions about the supply system and biorefinery capacity, which, in turn, depend upon economic value, feedstock logistics, and sustainability. A cross-functional team has examined combinations of advances in feedstock supply systems and biorefinery capacities with rigorous design information, improved crop yield and agronomic practices, and improved estimates of sustainable biomass availability. A previous report on biochemical refinery capacity noted that under advanced feedstock logistic supply systems that include depots and pre-processing operations there are cost advantages that support larger biorefineries up to 10 000 DMT/day facilities compared to the smaller 2000 DMT/day facilities. This report focuses on analyzing conventional versus advanced depot biomass supply systems for a thermochemical conversion and refinery sizing based on woody biomass. The results of this analysis demonstrate that the economies of scale enabled by advanced logistics offsets much of the added logistics costs from additional depot processing and transportation, resulting in a small overall increase to the minimum ethanol selling price compared to the conventional logistic supply system. While the overall costs do increase slightly for the advanced logistic supply systems, the ability to mitigate moisture and ash in the system will improve the storage and conversion processes. In addition, being able to draw on feedstocks from further distances will decrease the risk of biomass supply to the conversion facility.

David J. Muth, Jr.; Matthew H. Langholtz; Eric C. D. Tan; Jacob J. Jacobson; Amy Schwab; May M. Wu; Andrew Argo; Craig C. Brandt; Kara G. Cafferty; Yi-Wen Chiu; Abhijit Dutta; Laurence M. Eaton; Erin M. Searcy

2014-08-01T23:59:59.000Z

468

THE MECHANICAL DESIGN AND FABRICATION OF A CONVECTIVELY COOLED ION ACCELERATOR FOR CONTINUOUSLY OPERATING NEUTRAL BEAM SYSTEMS  

E-Print Network [OSTI]

100 kV 1. 5 sec Table 1. Grid heat loads as %beam power. Towith a central separation. Grid heat loading is the dominantsystem. To investigate grid heat loads on our grid designs

Paterson, J.A.

2012-01-01T23:59:59.000Z

469

High efficiency motor program impact assessment: Load analysis  

SciTech Connect (OSTI)

Incentive programs that encourage customers to purchase new or replacement high efficiency motors (HEM) are an element of many utilities DSM efforts. Such a program has been in place at Ontario Hydro since late 1989. The program was expected to rebate up to 800,000 HP over its five year duration. This paper reports on the results of a recently completed load analysis study to assess the load impacts of the program. The findings are based on field metering of integral HP, three-phase induction motors up to 500HP in size, at thirty industrial sites. Using a database of manufacturers`reported effiiencies, loadings and operating times for each of 181 standard and high efficiency motors are estimated. The results will be used as part of program impact evaluation. They indicate lower motor loadings and longer operating hours than had been assumed for interim evaluation. The paper provides detailed estimates of loading by HP group, industrial segment, and end-use. Issues in sample design, field metering and extrapolation to the rebated motor population are also discussed.

Whiting, R. Sr.

1995-12-31T23:59:59.000Z

470

On optimal multistage electric power distribution networks expansion planning  

Science Journals Connector (OSTI)

Abstract The optimal expansion planning of electric power distribution network to meet system load growth and overcome to pseudo dynamic behavior of network parameters considering a large number of constraints is a hard satisfactory multiobjective optimization problem. This paper implements new developed Imperialist Competitive Algorithm (ICA) for the optimal expansion planning of distribution network. The topology of medium voltage (MV) distribution network as backbone of electric power distribution systems is designed by optimal sizing, siting and timing of medium voltage network components such as HV substation and MV feeders’ routes. A multistage expansion planning is proposed to consider dynamic behavior of the system parameters asset management and geographical constraints. In order to reach the global solution an efficient coding is developed for ICA parameters. The Greedy algorithm is used to solve the minimum spanning tree problem to construct a radial configuration of the mesh network. At each stage of the problem the results are fully illustrated either by figures or by tables. A sensitivity analysis is used to show the robustness of the results with respect to ICA parameters variation. The obtained results are compared with GA as well known heuristic optimization tool. The efficiency and capability of the methodology has been tested on an under developed relatively large-scale distribution network.

S. Najafi Ravadanegh; R. Gholizadeh Roshanagh

2014-01-01T23:59:59.000Z

471

Residential Load Management Program and Pilot  

E-Print Network [OSTI]

In 1986 LCRA embarked on residential load management to control peak summer loads. At that time, LCRA was considered a summer peaking utility, and residential air conditioning and water heating systems were selected for control. The program...

Haverlah, D.; Riordon, K.

1994-01-01T23:59:59.000Z

472

1994 Pacific Northwest Loads and Resources Study.  

SciTech Connect (OSTI)

The 1994 Pacific Northwest Loads and Resources Study presented herein establishes a picture of how the agency is positioned today in its loads and resources balance. It is a snapshot of expected resource operation, contractual obligations, and rights. This study does not attempt to present or analyze future conservation or generation resource scenarios. What it does provide are base case assumptions from which scenarios encompassing a wide range of uncertainties about BPA`s future may be evaluated. The Loads and Resources Study is presented in two documents: (1) this summary of Federal system and Pacific Northwest region loads and resources and (2) a technical appendix detailing the loads and resources for each major Pacific Northwest generating utility. This analysis updates the 1993 Pacific Northwest Loads and Resources Study, published in December 1993. In this loads and resources study, resource availability is compared with a range of forecasted electricity consumption. The Federal system and regional analyses for medium load forecast are presented.

United States. Bonneville Power Administration.

1994-12-01T23:59:59.000Z

473

Helicase Loading at Chromosomal Origins of Replication  

E-Print Network [OSTI]

Loading of the replicative DNA helicase at origins of replication is of central importance in DNA replication. As the first of the replication fork proteins assemble at chromosomal origins of replication, the loaded helicase ...

Bell, Stephen P.

474

Dynamic load Variation and Stability Analysis in Distribution Networks with Distributed Generators  

E-Print Network [OSTI]

energy sources (small hydro, modern biomass, wind, solar, geothermal, and bio fuels). The annual growth rate of wind energy is about 30% [2], with a worldwide installed capacity of 157,900 megawatts (MW to conduct all the aspects of model implementation and carry out the extensive simulation studies. Here also

Pota, Himanshu Roy

475

Analysis Methodology for Industrial Load Profiles  

E-Print Network [OSTI]

ANALYSIS METHODOLOGY FOR INDUSTRIAL LOAD PROFILES Thomas W. Reddoch Executive Vice President Eleclrolek Concepts, Inc. Knoxvillc, Tennessee ABSTRACT A methodology is provided for evaluating the impact of various demand-side management... (OSM) options on industrial customers. The basic approach uses customer metered load profile data as a basis for the customer load shape. OSM technologies are represented as load shapes and are used as a basis for altering the customers existing...

Reddoch, T. W.

476

A Novel Approach to Determining Motor Load  

E-Print Network [OSTI]

A NOVEL APPROACH TO DETERMINING MOTOR LOAD by Michael Brown Georgia Tech Research Institute Atlanta, Georgia ABSTRACf Properly sized electric motors are essential if industrial plant efficiency is to be optimized and energy costs... minimized. Because of the difficully in making power measurements on three phase motors, loading is rarely, if ever, checked. A simple indication of motor load can be achieved by measuring operating speed because speed and load are almost linearly...

Brown, M.

477

Chapter 6 - Stage 3: Data Load  

Science Journals Connector (OSTI)

Summary This chapter discusses the Data Load stage of the Guerrilla Analytics workflow. Data Load involves getting data from a receipt location (generally the file system) and loading it into the Data Manipulation Environment (DME). In this chapter, you will learn about the various activities that take place at Data Load. You will learn about the pitfalls and risks in these activities. You will then learn a number of practice tips to mitigate those risks.

Enda Ridge

2015-01-01T23:59:59.000Z

478

FINAL PROJECT REPORT LOAD MODELING TRANSMISSION RESEARCH  

E-Print Network [OSTI]

BPA), the basic requirements for an improved load model were determined. These requirements included modeling the substation

Lesieutre, Bernard

2013-01-01T23:59:59.000Z

479

2004 Conference on Information Sciences and Systems, Princeton University, March 1719, 2004 Load Scheduling for Measurement and Data Reporting in Wireless  

E-Print Network [OSTI]

for measurement and data report- ing in wireless sensor networks. Using divisible load theory as a starting point-4]. A partitionable data parallel load is one that can be arbitrarily distributed among the processors and links2004 Conference on Information Sciences and Systems, Princeton University, March 17­19, 2004 Load

Robertazzi, Thomas G.

480

1360 IEEE Transactions on Power Systems, Vol. 12, No. 3, August 1997 Application of Fuzzy Logic Technology for Spatial Load Forecasting  

E-Print Network [OSTI]

of historical distribution load data [2]. The increasinglypopular, accurate, and affordable Geographic Informahon Systems (GIS) technology provides an excellent data base platform for spatial load forecasting on collecting relevant geographic data. Thus spatial load forecasting becomes even more attractive than before

Chow, Mo-Yuen

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481

Structures buckling under tensile dead load  

Science Journals Connector (OSTI)

...the load measured with a load cell Gefran OC-K2D-C3...PY-2-F-100 (Gefran Spa). Data have been acquired with...elementsAmsterdamElsevier Data Supplement Data Supplement Structures buckling under tensile dead load. A movie of the experiments...

2011-01-01T23:59:59.000Z

482

Flow Duration Curve Load Duration Curve  

E-Print Network [OSTI]

and concentration data--select appropriate conversion factors 3. Develop Load Duration Curve 4. Plot observed data there has been no flow at this site #12;Gather daily flow rate data Load data into a spreasheet Sort largest, etc) Calculate percentage of days flow was exceeded: How do you estimate load with given data

483

Flow Duration Curve Load Duration Curve  

E-Print Network [OSTI]

given flow and concentration data--select appropriate conversion factors 3. Develop Load Duration Curve 4. Plot observed data with Load Duration Curve #12;What are they? How do you make one? #12;DescribesRangeFlows LowFlows 40 % of the time there has been no flow at this site #12;Gather daily flow rate data Load

484

Water Network Design by MINLP  

E-Print Network [OSTI]

Feb 13, 2008 ... We propose a solution method for a water-network optimization problem ... The optimal design of a WDN (Water Distribution Network) consists, ...

2008-02-12T23:59:59.000Z

485

Application of advanced fuel cells for utility load leveling  

SciTech Connect (OSTI)

Three system designs are described and analyzed for Molten Carbonate (MCFC) and Solid Oxide (SOFC) Fuel Cells operating on natural gas. The two MCFC systems reach fuel to bus bar efficiencies of 50% HHV and can be ramped up or down over short time spans. The SOFC system is less efficient, but has fewer components and can also follow load variations. The effect of electrochemical fuel utilization on net system efficiencies and subsystem behavior is analyzed.

Krumpelt, M.; Fee, D.C.; Pierce, R.D.; Ackerman, J.P.

1983-01-01T23:59:59.000Z

486

Geometric nonlinear analysis of microbeam under electrostatic loading  

E-Print Network [OSTI]

mature, and a variety of new engineering products are being introduced into the market, there arises a need for sophisticated computer-aided engineering (CAE) tools or computer-aided design systems (CAD). Computational prototyping or simulations, when...- static field analysis [12]. Omar et al. [13] present a finite element method (FEM) for modeling electric and fluid fields in micrometers. Mullen et al. [14] used the finite element method to predict the load and buckling behavior of micro...

Murgude, Nikhil C.

2001-01-01T23:59:59.000Z

487

System and method employing a minimum distance and a load feature database to identify electric load types of different electric loads  

DOE Patents [OSTI]

A method identifies electric load types of a plurality of different electric loads. The method includes providing a load feature database of a plurality of different electric load types, each of the different electric load types including a first load feature vector having at least four different load features; sensing a voltage signal and a current signal for each of the different electric loads; determining a second load feature vector comprising at least four different load features from the sensed voltage signal and the sensed current signal for a corresponding one of the different electric loads; and identifying by a processor one of the different electric load types by determining a minimum distance of the second load feature vector to the first load feature vector of the different electric load types of the load feature database.

Lu, Bin; Yang, Yi; Sharma, Santosh K; Zambare, Prachi; Madane, Mayura A

2014-12-23T23:59:59.000Z

488

1993 Pacific Northwest Loads and Resources Study.  

SciTech Connect (OSTI)

The Loads and Resources Study is presented in three documents: (1) this summary of Federal system and Pacific Northwest region loads and resources; (2) a technical appendix detailing forecasted Pacific Northwest economic trends and loads, and (3) a technical appendix detailing the loads and resources for each major Pacific Northwest generating utility. In this loads and resources study, resource availability is compared with a range of forecasted electricity consumption. The forecasted future electricity demands -- firm loads -- are subtracted from the projected capability of existing and {open_quotes}contracted for{close_quotes} resources to determine whether Bonneville Power Administration (BPA) and the region will be surplus or deficit. If resources are greater than loads in any particular year or month, there is a surplus of energy and/or capacity, which BPA can sell to increase revenues. Conversely, if firm loads exceed available resources, there is a deficit of energy and/or capacity, and additional conservation, contract purchases, or generating resources will be needed to meet load growth. The Pacific Northwest Loads and Resources Study analyzes the Pacific Northwest`s projected loads and available generating resources in two parts: (1) the loads and resources of the Federal system, for which BPA is the marketing agency; and (2) the larger Pacific Northwest regional power system, which includes loads and resource in addition to the Federal system. The loads and resources analysis in this study simulates the operation of the power system under the Pacific Northwest Coordination Agreement (PNCA) produced by the Pacific Northwest Coordinating Group. This study presents the Federal system and regional analyses for five load forecasts: high, medium-high, medium, medium-low, and low. This analysis projects the yearly average energy consumption and resource availability for Operating Years (OY) 1994--95 through 2003--04.

United States. Bonneville Power Administration.

1993-12-01T23:59:59.000Z

489

Building diagnosable distributed systems  

E-Print Network [OSTI]

Building diagnosable distributed systems Petros Maniatis Intel Research Berkeley ICSI ­ Security] Project response@R (R, K, SI) lookup response Specification #12;2/8/2006 Petros Maniatis9 Strawman Design Join lookup.NI == node.NI Join lookup.NI == succ.NI Select K in (N, S] Project response@R (R, K, SI

Maniatis, Petros

490

NREL: Learning - Distributed Energy Basics  

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

Distributed Energy Basics Distributed Energy Basics Photo of transmission towers and lines extending for miles towards a pink sunset in the distance. Distributed energy technologies can relieve transmission bottlenecks by reducing the amount of electricity that must be sent long distances down high-voltage power lines. Distributed energy refers to a variety of small, modular power-generating technologies that can be combined with load management and energy storage systems to improve the quality and/or reliability of the electricity supply. They are "distributed" because they are placed at or near the point of energy consumption, unlike traditional "centralized" systems, where electricity is generated at a remotely located, large-scale power plant and then transmitted down power lines to the consumer.

491

EIA - Distributed Generation in Buildings  

Gasoline and Diesel Fuel Update (EIA)

Previous reports Previous reports Distributed Generation in Buildings - AEO2005 Modeling Distributed Electricity Generation in the NEMS Buildings Models - July 2002 Modeling Distributed Generation in the Buildings Sectors Supplement to the Annual Energy Outlook 2013 - Release date: August 29, 2013 Distributed and dispersed generation technologies generate electricity near the particular load they are intended to serve, such as a residential home or commercial building. EIA defines distributed generation (DG) as being connected to the electrical grid and intended to directly offset retail sales, and dispersed generation as being off-grid and often used for remote applications where grid-connected electricity is cost-prohibitive. Dispersed generation in the buildings sector is not currently gathered by

492

The Evaluation of the Heat Loading from Steady, Transient, and Off-Normal Conditions in ARIES Power Plants  

SciTech Connect (OSTI)

The heat loading on plasma facing components (PFCs) provides a critical limitation for design and operation of the first wall, divertor, and other special components. Power plants will have high power entering the scrape-off layer and transporting to the first wall and divertor. Although the design for steady heat loads is understood, the approach for transient and offnormal loading is not. The characterization of heat loads developed for ITER1 can be applied to power plants to better develop the operating space of viable solutions and point to research focus areas.

C.E. Kessel, M.S. Tillack and J. Blanchard

2012-09-07T23:59:59.000Z

493

High payload six-axis load sensor  

DOE Patents [OSTI]

A repairable high-payload six-axis load sensor includes a table, a base, and at least three shear-pin load transducers removably mounted between the table and the base. Removable mounting permits easy replacement of damaged shear pins. Preferably, the shear-pin load transducers are responsive to shear forces imparted along the two axes perpendicular to an axis of minimum sensitivity characteristic of the transducer. Responsive to an applied shear force, each shear-pin load transducer can produce an electrical signal proportional to the reaction force. The load sensor can further include a structure for receiving the proportional electrical signals and computing the applied load corresponding to the proportional electrical signals. The computed load can be expressed in terms of a three-dimensional XYZ Cartesian coordinate system.

Jansen, John F. (Knoxville, TN); Lind, Randall F. (Knoxville, TN)

2003-01-01T23:59:59.000Z

494

Designing an ultra low quiescent current buck switching regulator .  

E-Print Network [OSTI]

??The new buck regulator proposed in this thesis was designed to operate with only a few micro-amps of supply current during no load output conditions,… (more)

Gardner, John Underhill

2008-01-01T23:59:59.000Z

495

Plastic instabilities in statically and dynamically loaded spherical vessels  

SciTech Connect (OSTI)

Significant changes were made in design limits for pressurized vessels in the 2007 version of the ASME Code (Section VIII, Div. 3) and 2008 and 2009 Addenda. There is now a local damage-mechanics based strain-exhaustion limit as well as the well-known global plastic collapse limit. Moreover, Code Case 2564 (Section VIII, Div. 3) has recently been approved to address impulsively loaded vessels. It is the purpose of this paper to investigate the plastic collapse limit as it applies to dynamically loaded spherical vessels. Plastic instabilities that could potentially develop in spherical shells under symmetric loading conditions are examined for a variety of plastic constitutive relations. First, a literature survey of both static and dynamic instabilities associated with spherical shells is presented. Then, a general plastic instability condition for spherical shells subjected to displacement controlled and impulsive loading is given. This instability condition is evaluated for six plastic and visco-plastic constitutive relations. The role of strain-rate sensitivity on the instability point is investigated. Calculations for statically and dynamically loaded spherical shells are presented, illustrating the formation of instabilities as well as the role of imperfections. Conclusions of this work are that there are two fundamental types of instabilities associated with failure of spherical shells. In the case of impulsively loaded vessels, where the pulse duration is short compared to the fundamental period of the structure, one instability type is found not to occur in the absence of static internal pressure. Moreover, it is found that the specific role of strain-rate sensitivity on the instability strain depends on the form of the constitutive relation assumed.

Duffey, Thomas A [Los Alamos National Laboratory; Rodriguez, Edward A [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

496

Base load fuel comsumption with radiant boiler simulation  

SciTech Connect (OSTI)

The operating point of an oil fired radiant boiler, 580 Megawatt capacity, is critical in maximizing the availability, performance, reliability, and maintainability of a power producing system. Operating the unit above the design operating point causes outages to occur sooner than scheduled. When the boiler is operated below the design operating point, fuel is wasted because the quantity of fuel required to operate a radiant boiler is the same, whether the design setpoint is maintained or not. This paper demonstrates by means of simulation software that the boiler design setpoints is critical to fuel consumption and optimum output megawatts. A boiler with this capacity is used to provide a portion of the base load of an electric utility in order to sustain revenues and maintain reliable generation.

Shwehdi, M.H. (Pennsylvania State Univ., Wilkes-Barre, Lehman, PA (United States)); Hughes, C.M. (Naval Aviation Depot, NAS Jacksonville, Jacksonville, FL (United States)); Quasem, M.A. (Howard Univ. School of Business, Washington, DC (United States))

1992-12-01T23:59:59.000Z

497

High voltage load resistor array  

DOE Patents [OSTI]

A high voltage resistor comprising an array of a plurality of parallel electrically connected resistor elements each containing a resistive solution, attached at each end thereof to an end plate, and about the circumference of each of the end plates, a corona reduction ring. Each of the resistor elements comprises an insulating tube having an electrode inserted into each end thereof and held in position by one or more hose clamps about the outer periphery of the insulating tube. According to a preferred embodiment, the electrode is fabricated from stainless steel and has a mushroom shape at one end, that inserted into the tube, and a flat end for engagement with the end plates that provides connection of the resistor array and with a load.

Lehmann, Monty Ray (Smithfield, VA)

2005-01-18T23:59:59.000Z

498

Onsite Wastewater Treatment Systems: Spray Distribution System  

E-Print Network [OSTI]

Spray distribution systems for wastewater are much like lawn sprinkler systems, in that they spray treated wastewater over the surface of a yard. This publication explains how spray distribution systems work, what their design requirements are...

Lesikar, Bruce J.

2008-10-23T23:59:59.000Z

499

Distributed Energy | Department of Energy  

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

Distributed Distributed Energy Distributed Energy Distributed energy consists of a range of smaller-scale and modular devices designed to provide electricity, and sometimes also thermal energy, in locations close to consumers. They include fossil and renewable energy technologies (e.g., photovoltaic arrays, wind turbines, microturbines, reciprocating engines, fuel cells, combustion turbines, and steam turbines); energy storage devices (e.g., batteries and flywheels); and combined heat and power systems. Distributed energy offers solutions to many of the nation's most pressing energy and electric power problems, including blackouts and brownouts, energy security concerns, power quality issues, tighter emissions standards, transmission bottlenecks, and the desire for greater control over energy costs.

500

Methods for Analyzing Electric Load Shape and its Variability  

E-Print Network [OSTI]

graphical displays of load data. We then define someAlthough simply overlaying load data from different timeprovide a good fit to load data in most buildings; their

Price, Philip

2010-01-01T23:59:59.000Z