Powered by Deep Web Technologies
Note: This page contains sample records for the topic "modeling distributed generation" 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

Pseudoabsence Generation Strategies for Species Distribution Models  

E-Print Network (OSTI)

Pseudoabsence Generation Strategies for Species Distribution Models Brice B. Hanberry1 *, Hong S: Pseudoabsence generation strategy completely affected the area predicted as present for species distribution) Pseudoabsence Generation Strategies for Species Distribution Models. PLoS ONE 7(8): e44486. doi:10.1371/ journal

He, Hong S.

2

Modeling distributed generation in the buildings sectors  

Gasoline and Diesel Fuel Update (EIA)

Modeling distributed generation Modeling distributed generation in the buildings sectors August 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Modeling distributed generation in the buildings sectors i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or other Federal agencies. July 2013 U.S. Energy Information Administration | Modeling distributed generation in the buildings sectors 1

3

Learning to model sequences generated by switching distributions Yoav Freund  

E-Print Network (OSTI)

Learning to model sequences generated by switching distributions Yoav Freund AT&T Bell Labs 600 distributions learning problem. A sequence S = oe 1 oe 2 : : : oe n , over a finite alphabet \\Sigma is generated run is generated by independent random draws from a distribution ~ p i over \\Sigma, where ~p i

Freund, Yoav

4

Distributed Generation  

NLE Websites -- All DOE Office Websites (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

5

A Model of U.S. Commercial Distributed Generation Adoption  

SciTech Connect

Small-scale (100 kW-5 MW) on-site distributed generation (DG) economically driven by combined heat and power (CHP) applications and, in some cases, reliability concerns will likely emerge as a common feature of commercial building energy systems over the next two decades. Forecasts of DG adoption published by the Energy Information Administration (EIA) in the Annual Energy Outlook (AEO) are made using the National Energy Modeling System (NEMS), which has a forecasting module that predicts the penetration of several possible commercial building DG technologies over the period 2005-2025. NEMS is also used for estimating the future benefits of Department of Energy research and development used in support of budget requests and management decisionmaking. The NEMS approach to modeling DG has some limitations, including constraints on the amount of DG allowed for retrofits to existing buildings and a small number of possible sizes for each DG technology. An alternative approach called Commercial Sector Model (ComSeM) is developed to improve the way in which DG adoption is modeled. The approach incorporates load shapes for specific end uses in specific building types in specific regions, e.g., cooling in hospitals in Atlanta or space heating in Chicago offices. The Distributed Energy Resources Customer Adoption Model (DER-CAM) uses these load profiles together with input cost and performance DG technology assumptions to model the potential DG adoption for four selected cities and two sizes of five building types in selected forecast years to 2022. The Distributed Energy Resources Market Diffusion Model (DER-MaDiM) is then used to then tailor the DER-CAM results to adoption projections for the entire U.S. commercial sector for all forecast years from 2007-2025. This process is conducted such that the structure of results are consistent with the structure of NEMS, and can be re-injected into NEMS that can then be used to integrate adoption results into a full forecast.

LaCommare, Kristina Hamachi; Ryan Firestone; Zhou, Nan; Maribu,Karl; Marnay, Chris

2006-01-10T23:59:59.000Z

6

A Brief History of Generative Models for Power Law and Lognormal Distributions  

E-Print Network (OSTI)

A Brief History of Generative Models for Power Law and Lognormal Distributions Michael Mitzenmacher generative models that lead to these distributions. One #12;nding is that lognormal and power law of an underlying generative model which suggested that #12;le sizes were better modeled by a lognormal distribution

Mitzenmacher, Michael

7

Distributed generation capabilities of the national energy modeling system  

SciTech Connect

This report describes Berkeley Lab's exploration of how the National Energy Modeling System (NEMS) models distributed generation (DG) and presents possible approaches for improving how DG is modeled. The on-site electric generation capability has been available since the AEO2000 version of NEMS. Berkeley Lab has previously completed research on distributed energy resources (DER) adoption at individual sites and has developed a DER Customer Adoption Model called DER-CAM. Given interest in this area, Berkeley Lab set out to understand how NEMS models small-scale on-site generation to assess how adequately DG is treated in NEMS, and to propose improvements or alternatives. The goal is to determine how well NEMS models the factors influencing DG adoption and to consider alternatives to the current approach. Most small-scale DG adoption takes place in the residential and commercial modules of NEMS. Investment in DG ultimately offsets purchases of electricity, which also eliminates the losses associated with transmission and distribution (T&D). If the DG technology that is chosen is photovoltaics (PV), NEMS assumes renewable energy consumption replaces the energy input to electric generators. If the DG technology is fuel consuming, consumption of fuel in the electric utility sector is replaced by residential or commercial fuel consumption. The waste heat generated from thermal technologies can be used to offset the water heating and space heating energy uses, but there is no thermally activated cooling capability. This study consists of a review of model documentation and a paper by EIA staff, a series of sensitivity runs performed by Berkeley Lab that exercise selected DG parameters in the AEO2002 version of NEMS, and a scoping effort of possible enhancements and alternatives to NEMS current DG capabilities. In general, the treatment of DG in NEMS is rudimentary. The penetration of DG is determined by an economic cash-flow analysis that determines adoption based on the n umber of years to a positive cash flow. Some important technologies, e.g. thermally activated cooling, are absent, and ceilings on DG adoption are determined by some what arbitrary caps on the number of buildings that can adopt DG. These caps are particularly severe for existing buildings, where the maximum penetration for any one technology is 0.25 percent. On the other hand, competition among technologies is not fully considered, and this may result in double-counting for certain applications. A series of sensitivity runs show greater penetration with net metering enhancements and aggressive tax credits and a more limited response to lowered DG technology costs. Discussion of alternatives to the current code is presented in Section 4. Alternatives or improvements to how DG is modeled in NEMS cover three basic areas: expanding on the existing total market for DG both by changing existing parameters in NEMS and by adding new capabilities, such as for missing technologies; enhancing the cash flow analysis but incorporating aspects of DG economics that are not currently represented, e.g. complex tariffs; and using an external geographic information system (GIS) driven analysis that can better and more intuitively identify niche markets.

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Marnay, Chris

2003-01-01T23:59:59.000Z

8

The Plausibility of Semantic Properties Generated by a Distributional Model: Evidence from a Visual World Experiment  

E-Print Network (OSTI)

The Plausibility of Semantic Properties Generated by a Distributional Model: Evidence from a Visual the plausibility of the properties generated by a distributional model using data from a visual world experiment, recently, a distributional model has been proposed that is able to generate properties associated

Koehn, Philipp

9

A distributed parameter model for the torsional vibration analysis of turbine-generator shafts  

Science Journals Connector (OSTI)

A distributed parameter model is presented for the calculation of torsional vibrations of large turbine-generator shafts, on the basis of electrical analogy...

A. Deri; L. Kiss; G. Toth

1987-01-01T23:59:59.000Z

10

A multistage model for distribution expansion planning with distributed generation in a deregulated electricity market  

Science Journals Connector (OSTI)

Distribution systems management is becoming an increasingly complicated issue due to the introduction of new technologies, new energy trading strategies and a new deregulated environment. In the new deregulated energy market and considering the incentives ... Keywords: GAMS-MATLAB interface, distributed generation (DG), distribution company (DISCO), investment payback time, microturbine, social welfare

S. Porkar; A. Abbaspour-Tehrani-Fard; P. Poure; S. Saadate

2010-06-01T23:59:59.000Z

11

Uncertainty Analysis of the Adequacy Assessment Model of a Distributed Generation System  

E-Print Network (OSTI)

of evidence theory, the hybrid propagation approach is introduced. A demonstration is given on a DG system enables end-users to install renewable generators (e.g. solar generators and wind turbines) on1 Uncertainty Analysis of the Adequacy Assessment Model of a Distributed Generation System Yanfu Li

Paris-Sud XI, Université de

12

Distributed Central Pattern Generator Model for Robotics Application Based on Phase Sensitivity Analysis  

Science Journals Connector (OSTI)

A method is presented to predict phase relationships between coupled phase oscillators. As an illustration of how the method can be applied, a distributed Central Pattern Generator (CPG) model based on amplitude ...

Jonas Buchli; Auke Jan Ijspeert

2004-01-01T23:59:59.000Z

13

Distributed State Space Generation of Discrete-State Stochastic Models  

E-Print Network (OSTI)

of the numerical approach, since the size of the state space can easily be orders of magnitude larger than the main charts [17], and ad hoc textual languages [14], the correct logical behavior can, in principle--it makes sense to distribute the state-space principally when one has to in order to avoid paging overhead

Ciardo, Gianfranco

14

Modeling and Generating Daily Changes in Market Variables Using A Multivariate Mixture of Normal Distributions  

E-Print Network (OSTI)

Modeling and Generating Daily Changes in Market Variables Using A Multivariate Mixture of Normal Distributions Jin Wang Department of Mathematics and Computer Science Valdosta State University Valdosta, GA 31698-0040 January 28, 2000 Abstract The mixture of normal distributions provides a useful extension

Wang, Jin

15

Distributions: generators of observations What about reality?  

E-Print Network (OSTI)

Distributions: generators of observations What about reality? An example: homeopathy Conclusion Models, Estimation and Reality #12;Distributions: generators of observations What about reality? An example: homeopathy Conclusion 1. Distributions: generators of observations Statistical modelling is based

Hennig, Christian

16

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

17

A distributed model for capacitance requirements for self-excited induction generators  

Science Journals Connector (OSTI)

The main objective of this paper is to construct a distributed environment through which the capacitance requirements of self-excited induction generators can be monitored and controlled. A single-server/multiclient architecture has been proposed which enables that the self-excited induction generators can access the remote server at any time, with their respective data and can able to get the minimum capacitance requirements. An Remote Method Invocation (RMI)-based distributed model has been developed in such a way that for every specific period of time, the remote server obtains the system data simultaneously from the neighbouring self-excited induction generators which are the clients registered with it and the server send back the capacitance requirements as response to the respective clients. The server creates a new thread of control for every client request and hence complete distributed environment has been exploited.

K. Nithiyananthan; V. Ramachandran

2008-01-01T23:59:59.000Z

18

CONSULTANT REPORT DISTRIBUTED GENERATION  

E-Print Network (OSTI)

Energy Jobs Plan, Governor Brown established a 2020 goal of 12,000 megawatts of localized renewable energy development, or distributed generation, in California. In May 2012, Southern California Edison, renewables, interconnection, integration, electricity, distribution, transmission, costs. Please use

19

Network Reconfiguration at the Distribution System with Distributed Generators  

Science Journals Connector (OSTI)

This article proposes a novel model for distribution network reconfiguration to meet current distribution system operating demands. In the model the connection of distributed generators to distribution system is ...

Gao Xiaozhi; Li Linchuan; Xue Hailong

2010-01-01T23:59:59.000Z

20

Paradigm shift in urban energy systems through distributed generation: Methods and models  

Science Journals Connector (OSTI)

The path towards energy sustainability is commonly referred to the incremental adoption of available technologies, practices and policies that may help to decrease the environmental impact of energy sector, while providing an adequate standard of energy services. The evaluation of trade-offs among technologies, practices and policies for the mitigation of environmental problems related to energy resources depletion requires a deep knowledge of the local and global effects of the proposed solutions. While attempting to calculate such effects for a large complex system like a city, an advanced multidisciplinary approach is needed to overcome difficulties in modeling correctly real phenomena while maintaining computational transparency, reliability, interoperability and efficiency across different levels of analysis. Further, a methodology that rationally integrates different computational models and techniques is necessary to enable collaborative research in the field of optimization of energy efficiency strategies and integration of renewable energy systems in urban areas. For these reasons, a selection of currently available models for distributed generation planning and design is presented and analyzed in the perspective of gathering their capabilities in an optimization framework to support a paradigm shift in urban energy systems. This framework embodies the main concepts of a local energy management system and adopts a multicriteria perspective to determine optimal solutions for providing energy services through distributed generation.

Massimiliano Manfren; Paola Caputo; Gaia Costa

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

GASIFICATION FOR DISTRIBUTED GENERATION  

SciTech Connect

A recent emphasis in gasification technology development has been directed toward reduced-scale gasifier systems for distributed generation at remote sites. The domestic distributed power generation market over the next decade is expected to be 5-6 gigawatts per year. The global increase is expected at 20 gigawatts over the next decade. The economics of gasification for distributed power generation are significantly improved when fuel transport is minimized. Until recently, gasification technology has been synonymous with coal conversion. Presently, however, interest centers on providing clean-burning fuel to remote sites that are not necessarily near coal supplies but have sufficient alternative carbonaceous material to feed a small gasifier. Gasifiers up to 50 MW are of current interest, with emphasis on those of 5-MW generating capacity. Internal combustion engines offer a more robust system for utilizing the fuel gas, while fuel cells and microturbines offer higher electric conversion efficiencies. The initial focus of this multiyear effort was on internal combustion engines and microturbines as more realistic near-term options for distributed generation. In this project, we studied emerging gasification technologies that can provide gas from regionally available feedstock as fuel to power generators under 30 MW in a distributed generation setting. Larger-scale gasification, primarily coal-fed, has been used commercially for more than 50 years to produce clean synthesis gas for the refining, chemical, and power industries. Commercial-scale gasification activities are under way at 113 sites in 22 countries in North and South America, Europe, Asia, Africa, and Australia, according to the Gasification Technologies Council. Gasification studies were carried out on alfalfa, black liquor (a high-sodium waste from the pulp industry), cow manure, and willow on the laboratory scale and on alfalfa, black liquor, and willow on the bench scale. Initial parametric tests evaluated through reactivity and product composition were carried out on thermogravimetric analysis (TGA) equipment. These tests were evaluated and then followed by bench-scale studies at 1123 K using an integrated bench-scale fluidized-bed gasifier (IBG) which can be operated in the semicontinuous batch mode. Products from tests were solid (ash), liquid (tar), and gas. Tar was separated on an open chromatographic column. Analysis of the gas product was carried out using on-line Fourier transform infrared spectroscopy (FT-IR). For selected tests, gas was collected periodically and analyzed using a refinery gas analyzer GC (gas chromatograph). The solid product was not extensively analyzed. This report is a part of a search into emerging gasification technologies that can provide power under 30 MW in a distributed generation setting. Larger-scale gasification has been used commercially for more than 50 years to produce clean synthesis gas for the refining, chemical, and power industries, and it is probable that scaled-down applications for use in remote areas will become viable. The appendix to this report contains a list, description, and sources of currently available gasification technologies that could be or are being commercially applied for distributed generation. This list was gathered from current sources and provides information about the supplier, the relative size range, and the status of the technology.

Ronald C. Timpe; Michael D. Mann; Darren D. Schmidt

2000-05-01T23:59:59.000Z

22

Distributively generated lattices Grigore Calugareanu  

E-Print Network (OSTI)

Distributively generated lattices Grigore Calugareanu Abstract In 1938 [6] Ore proved the following and distributive is equivalent to locally cyclic (i.e. each finite set of elements generates a cyclic group). A lattice is called distributively generated [resp. cycle generated] if every element is a join

Cãlugãreanu, Grigore

23

Arnold Schwarzenegger DISTRIBUTED GENERATION DRIVETRAIN  

E-Print Network (OSTI)

Arnold Schwarzenegger Governor DISTRIBUTED GENERATION DRIVETRAIN FOR WINDPOWER APPLICATION Prepared in this report. #12;ENERGY INNOVATIONS SMALL GRANT (EISG) PROGRAM INDEPENDENT ASSESSMENT REPORT (IAR) DISTRIBUTED GENERATION DRIVETRAIN FOR WINDPOWER APPLICATION EISG AWARDEE Dehlsen Associates, LLC 7985 Armas Canyon Road

24

DISTRIBUTED GENERATION AND COGENERATION POLICY  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION DISTRIBUTED GENERATION AND COGENERATION POLICY ROADMAP FOR CALIFORNIA to the development of this report by the Energy Commission's Distributed Generation Policy Advisory Team; Melissa;ABSTRACT This report defines a year 2020 policy vision for distributed generation and cogeneration

25

A Multi-State Model for the Reliability Assessment of a Distributed Generation System via Universal Generating Function  

E-Print Network (OSTI)

renewable technology (e.g. wind or solar, etc.) whose behavior is described by a binary state, working assessment, multi-state modeling, universal generating function #12;2 Notations Solar irradiance Total number of discretized solar irradiance states Discretized solar irradiance at state i Random variable representing

Boyer, Edmond

26

Distributed Generation Status Update  

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

0 DOE Peer Review Presentation 0 DOE Peer Review Presentation © Chevron 2010 CERTS Microgrid Demonstration with Large scale Energy Storage & Renewable Generation November 5, 2010 Presented By: Craig Gee, Project Manager (for Mr. Eduardo Alegria - Principal Investigator) Energy Solutions November 2010 DOE Peer Review Presentation © Chevron 2010 Agenda * Introduction - Who we are * Project Team & Site * Project Purpose & Objectives * Project Impacts * System Elements * Project Status * Research Elements * Recent Developments in California * Questions & Comments November 2010 DOE Peer Review Presentation © Chevron 2010 Chevron Energy Solutions Designed & Implemented over 900 Projects in the U.S.  Chevron ES, a division of Chevron USA, Inc. is committed to delivering economically & environmentally advantageous green

27

Renewable Energy: Distributed Generation Policies and Programs...  

Energy Savers (EERE)

Distributed Generation Policies and Programs Distributed generation is the term used when electricity is generated from sources, often renewable energy sources, near the point of...

28

GENERATING TEXT DESCRIPTIONS FOR GEOGRAPHICALLY DISTRIBUTED SENSORS  

E-Print Network (OSTI)

GENERATING TEXT DESCRIPTIONS FOR GEOGRAPHICALLY DISTRIBUTED SENSORS Martin Molina and Javier generation of geographic descriptions in natural language for geographically distributed sensors. We describe generation of geographic descriptions in natural language for geographically distributed sensors. We describe

Molina, Martín

29

Other Distributed Generation Technologies | Open Energy Information  

Open Energy Info (EERE)

Generation Technologies Incentives Retrieved from "http:en.openei.orgwindex.php?titleOtherDistributedGenerationTechnologies&oldid267183...

30

Definition: Distributed generation | Open Energy Information  

Open Energy Info (EERE)

generation generation Jump to: navigation, search Dictionary.png Distributed generation A term used by the power industry to describe localized or on-site power generation[1] View on Wikipedia Wikipedia Definition Distributed generation, also called on-site generation, dispersed generation, embedded generation, decentralized generation, decentralized energy or distributed energy, generates electricity from many small energy sources. Most countries generate electricity in large centralized facilities, such as fossil fuel, nuclear, large solar power plants or hydropower plants. These plants have excellent economies of scale, but usually transmit electricity long distances and can negatively affect the environment. Distributed generation allows collection of energy from many

31

Modeling, control, and power management of a power electrical system including two distributed generators based on fuel cell and supercapacitor  

Science Journals Connector (OSTI)

This paper focuses on Distributed Generator (DG) integration in Power Electrical System (PES) for dispersed nodes. The main objective of the DG use can be classified into two aspects: a load following service and ancillary service systems. In this study the DG system contains a Fuel cell and a Supercapacitor storage device. A gas turbine system is modeled in order to estimate the PES frequency behavior under a variable power demand. The main goal of this work is to develop a DG control strategy with the aim to smooth the frequency and the voltage peak variations. To assess the different management stages the power flow exchanged between DGs and PES is depicted and discussed for different power demand variations. The results found with the DGs integration strategy confirm the frequency and voltage regulations and also prove the well power flow management.

L. Krichen

2013-01-01T23:59:59.000Z

32

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

33

Property:Distributed Generation Prime Mover | Open Energy Information  

Open Energy Info (EERE)

Property Property Edit with form History Facebook icon Twitter icon » Property:Distributed Generation Prime Mover Jump to: navigation, search Property Name Distributed Generation Prime Mover Property Type Page Description Make and model of power sources. Pages using the property "Distributed Generation Prime Mover" Showing 22 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Ingersoll Rand I-R PowerWorks 70 + Distributed Generation Study/615 kW Waukesha Packaged System + Waukesha VGF 36GLD + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Aisin Seiki G60 + Distributed Generation Study/Arrow Linen + Coast Intelligen 150-IC with ECS + Distributed Generation Study/Dakota Station (Minnegasco) + Capstone C30 +

34

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

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

35

Air Quality Impact of Distributed Generation of Electricity  

E-Print Network (OSTI)

Distributed Generators .from a typical distributed generator. Therefore, there is aStations 3.3.1 Distributed Generators The physical

Jing, Qiguo

2011-01-01T23:59:59.000Z

36

Impacts of distributed generation on Smart Grid.  

E-Print Network (OSTI)

??With the concept of Smart Grid, there are high possibilities that the interconnection of distributed generation issues can be solved and minimised. This thesis discusses (more)

Hidayatullah, Nur Asyik

2011-01-01T23:59:59.000Z

37

Distributed Generation Dispatch Optimization under Various Electricity Tariffs  

E-Print Network (OSTI)

Distributed Generation Dispatch Optimization Under Various Electricity Tariffs which generatorsDistributed Generation Dispatch Optimization Under Various Electricity Tariffs no-DG The generator

Firestone, Ryan; Marnay, Chris

2007-01-01T23:59:59.000Z

38

A reliability assessment methodology for distribution systems with distributed generation  

E-Print Network (OSTI)

Generation and Micro-Grid Networks. v TABLE OF CONTENTS CHAPTER Page I INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1 B. Distribution System Reliability... Generation and Micro-Grid Networks. v TABLE OF CONTENTS CHAPTER Page I INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1 B. Distribution System Reliability...

Duttagupta, Suchismita Sujaya

2006-08-16T23:59:59.000Z

39

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

40

Distributed Medium Access Control for Next Generation CDMA Wireless Networks  

E-Print Network (OSTI)

Distributed Medium Access Control for Next Generation CDMA Wireless Networks Hai Jiang, Princeton wireless networks are expected to have a simple infrastructure with distributed control. In this article, we consider a generic distributed network model for future wireless multi- media communications

Zhuang, Weihua

Note: This page contains sample records for the topic "modeling distributed generation" 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

Ormolu : generating runtime monitors from alloy models  

E-Print Network (OSTI)

This thesis presents Ormolu, a runtime monitor used for monitoring distributed systems. Given an Alloy model, Ormolu generates a database schema and translates the constraints of the model to queries over the database. The ...

Reeves, Dwayne Lloyd

2011-01-01T23:59:59.000Z

42

Abatement of Air Pollution: Distributed Generators (Connecticut) |  

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

Distributed Generators (Connecticut) Distributed Generators (Connecticut) Abatement of Air Pollution: Distributed Generators (Connecticut) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Connecticut Program Type Environmental Regulations Provider Department of Energy and Environmental Protection

43

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

44

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

option on natural gas generation, which increases in valueL ABORATORY Distributed Generation Investment by a MicrogridORMMES06 Distributed Generation Investment by a Microgrid

Siddiqui, Afzal; Marnay, Chris

2006-01-01T23:59:59.000Z

45

Integration of Demand Side Management, Distributed Generation...  

Open Energy Info (EERE)

States. Annex 8 provides a list of software tools for analysing various aspects of demand response, distributed generation, smart grid and energy storage. Annex 9 is a list of...

46

Distributed generation - the fuel processing example  

SciTech Connect

The increased costs of transportation and distribution are leading many commercial and industrial firms to consider the on-site generation for energy and other commodities used in their facilities. This trend has been accelerated by the development of compact, efficient processes for converting basic raw materials into finished services at the distributed sites. Distributed generation with the PC25{trademark} fuel cell power plant is providing a new cost effective technology to meet building electric and thermal needs. Small compact on-site separator systems are providing nitrogen and oxygen to many industrial users of these gases. The adaptation of the fuel processing section of the PC25 power plant for on-site hydrogen generation at industrial sites extends distributed generation benefits to the users of industrial hydrogen.

Victor, R.A. [Praxair, Inc., Tonawanda, NY (United States); Farris, P.J.; Maston, V. [International Fuel Cells Corp., South Windsor, CT (United States)

1996-12-31T23:59:59.000Z

47

Implementation of a Distributed Pseudorandom Number Generator  

Science Journals Connector (OSTI)

In parallel Monte Carlo simulations, it is highly desirable to have a system of pseudo-random number generators that has good statistical properties and allows ... processes. In this work, we discuss a distributed

Jian Chen; Paula Whitlock

1995-01-01T23:59:59.000Z

48

Regulatory Considerations for Developing Distributed Generation Projects  

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

Regulatory Considerations for Developing Distributed Generation Regulatory Considerations for Developing Distributed Generation Projects Webinar Regulatory Considerations for Developing Distributed Generation Projects Webinar May 23, 2012 11:30AM to 1:00PM MDT The purpose of this webinar is to educate NRECA and APPA members, Tribes, and federal energy managers about a few of the regulatory issues that should be considered in developing business plans for distributed generation projects. This webinar is sponsored by the DOE Office of Indian Energy Policy and Programs, DOE Energy Efficiency and Renewable Energy Tribal Energy Program, Western Area Power Administration, DOE Federal Energy Management Program, DOE Office of Electricity Delivery and Energy Reliability, National Rural Electric Cooperative Association, and the American Public Power

49

Optimal allocation of stochastically dependent renewable energy based distributed generators in unbalanced distribution networks  

Science Journals Connector (OSTI)

Abstract This paper proposes an algorithm for modeling stochastically dependent renewable energy based distributed generators for the purpose of proper planning of unbalanced distribution networks. The proposed algorithm integrate the diagonal band Copula and sequential Monte Carlo method in order to accurately consider the multivariate stochastic dependence between wind power, photovoltaic power and the system demand. Secondly, an efficient algorithm based on modification of the traditional Big Bang-Big crunch method is proposed for optimal placement of renewable energy based distributed generators in the presence of dispatchable distributed generation. The proposed optimization algorithm aims to minimize the energy loss in unbalanced distribution systems by determining the optimal locations of non-dispatchable distributed generators and the optimal hourly power schedule of dispatchable distributed generators. The proposed algorithms are implemented in MATLAB environment and tested on the IEEE 37-node feeder. Several case studies are done and the subsequent discussions show the effectiveness of the proposed algorithms.

A.Y. Abdelaziz; Y.G. Hegazy; Walid El-Khattam; M.M. Othman

2015-01-01T23:59:59.000Z

50

Impact of Distributed Generation and Series Compensation on Distribution Network  

E-Print Network (OSTI)

are investigated. A doubly-fed induction generator (DFIG)-based DG unit and a series capacitor (SC) and a thyristor DFIG units. The converter of the DFIG is modeled as an unbalanced harmonic-generating source

Pota, Himanshu Roy

51

Distributed Generation Systems Inc | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Systems Inc Distributed Generation Systems Inc Name Distributed Generation Systems Inc Address 200 Union Blvd Place Lakewood, Colorado Zip 80228 Sector Wind energy Product Developer of electricity generation wind power facilities Website http://www.disgenonline.com/ Coordinates 39.718048°, -105.1324055° 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":39.718048,"lon":-105.1324055,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

52

FCT Technology Validation: Stationary/Distributed Generation Projects  

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

Stationary/Distributed Stationary/Distributed Generation Projects to someone by E-mail Share FCT Technology Validation: Stationary/Distributed Generation Projects on Facebook Tweet about FCT Technology Validation: Stationary/Distributed Generation Projects on Twitter Bookmark FCT Technology Validation: Stationary/Distributed Generation Projects on Google Bookmark FCT Technology Validation: Stationary/Distributed Generation Projects on Delicious Rank FCT Technology Validation: Stationary/Distributed Generation Projects on Digg Find More places to share FCT Technology Validation: Stationary/Distributed Generation Projects on AddThis.com... Home Transportation Projects Stationary/Distributed Generation Projects DOE Projects Non-DOE Projects Integrated Projects Quick Links Hydrogen Production

53

Distributed Generation Investment by a Microgrid under Uncertainty++++ Afzal Siddiqui  

E-Print Network (OSTI)

1 Distributed Generation Investment by a Microgrid under Uncertainty++++ Afzal Siddiqui University's decision to invest in a distributed generation (DG) unit fuelled by natural gas. While the long. KEYWORDS. OR in Energy; Distributed Generation; Real Options; Optimal Investment. 1. INTRODUCTION

Guillas, Serge

54

Consequences of Fault Currents Contributed by Distributed Generation  

E-Print Network (OSTI)

Consequences of Fault Currents Contributed by Distributed Generation Intermediate Project Report Currents Contributed by Distributed Generation Intermediate Report for the Project "New Implications in systems with distributed generation. The main concept described is that fault current throughout power

55

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

flexibility. The DG investment opportunity is similar to aDistributed Generation Investment by a Microgrid Under06 Distributed Generation Investment by a Microgrid Under

Siddiqui, Afzal; Marnay, Chris

2006-01-01T23:59:59.000Z

56

Fuel Cell Comparison of Distributed Power Generation Technologies...  

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

Cell Comparison of Distributed Power Generation Technologies Fuel Cell Comparison of Distributed Power Generation Technologies This report examines backup power and prime power...

57

Worst Case Scenario for Large Distribution Networks with Distributed Generation  

E-Print Network (OSTI)

, tides, and geothermal heat, is the best choice as alternative source of energy. The interconnection and distribution networks, finally to the electric energy consumers. The life style of a nation is measured of these renewable energy sources and other forms of small generation such as combined heat and power (CHP) units

Pota, Himanshu Roy

58

Efficient Generation of PH-distributed Random Gabor Horvath2  

E-Print Network (OSTI)

Efficient Generation of PH-distributed Random Variates G´abor Horv´ath2 , Philipp Reinecke1 , Mikl approaches. Simulations require the efficient generation of random variates from PH distributions. PH generation of PH distributed variates. Key words: PH distribution, pseudo random number generation. 1

Telek, Miklós

59

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 +

60

Automatically Generating Symbolic Prefetches for Distributed Transactional Memories  

E-Print Network (OSTI)

Automatically Generating Symbolic Prefetches for Distributed Transactional Memories Alokika Dash static compiler analysis that can automatically generate symbolic prefetches for distributed applications and Brian Demsky University of California, Irvine Abstract. Developing efficient distributed applications

Boyer, Edmond

Note: This page contains sample records for the topic "modeling distributed generation" 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

Generators for Synthesis of QoS Adaptation in Distributed Real-Time Embedded Systems  

Science Journals Connector (OSTI)

This paper presents a model-driven approach for generating Quality-of-Service (QoS) adaptation in Distributed Real-Time Embedded (DRE) systems. The ... - the Adaptive Quality Modeling Language. Multiple generators

Sandeep Neema; Ted Bapty; Jeff Gray

2002-01-01T23:59:59.000Z

62

Compiler Techniques for Determining Data Distribution and Generating Communication Sets on DistributedMemory Multicomputers 1  

E-Print Network (OSTI)

Compiler Techniques for Determining Data Distribution and Generating Communication Sets and generating communication sets on distributed memory multicomputers. First, we propose a dynamic programming; 1 Introduction Arrays distribution and communication sets generation are two problems we must solve

Chen, Sheng-Wei

63

Application of honey-bee mating optimization on state estimation of a power distribution system including distributed generators  

Science Journals Connector (OSTI)

We present a new approach based on honey-bee mating optimization to estimate the state variables in distribution networks including distributed generators. The proposed method considers practical models of...

Taher Niknam

2008-12-01T23:59:59.000Z

64

An Optimized Adaptive Protection Scheme for Distribution Systems Penetrated with Distributed Generators  

Science Journals Connector (OSTI)

An intelligent adaptive protection scheme for distribution systems penetrated with distributed generators is proposed in this chapter. The scheme...

Ahmed H. Osman; Mohamed S. Hassan

2014-01-01T23:59:59.000Z

65

Property:Distributed Generation System Enclosure | Open Energy Information  

Open Energy Info (EERE)

System Enclosure System Enclosure Jump to: navigation, search This is a property of type String. The allowed values for this property are: Indoor Outdoor Dedicated Shelter Pages using the property "Distributed Generation System Enclosure" Showing 22 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Indoor + Distributed Generation Study/615 kW Waukesha Packaged System + Outdoor + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Outdoor + Distributed Generation Study/Arrow Linen + Outdoor + Distributed Generation Study/Dakota Station (Minnegasco) + Outdoor + Distributed Generation Study/Elgin Community College + Indoor + Distributed Generation Study/Emerling Farm + Dedicated Shelter + Distributed Generation Study/Floyd Bennett + Outdoor +

66

Consequences of Fault Currents Contributed by Distributed Generation  

E-Print Network (OSTI)

Consequences of Fault Currents Contributed by Distributed Generation Supplemental Project Report Currents Contributed by Distributed Generation Natthaphob Nimpitiwan Gerald Heydt Research Project Team distributed generation (DG) is growing in the over- all generation mix due in part to state and national

67

Reducing the Cost of Generating APH-distributed Random Numbers  

E-Print Network (OSTI)

Reducing the Cost of Generating APH-distributed Random Numbers Philipp Reinecke1 , Mikl´os Telek2 for generating PH-distributed random numbers. In this work, we discuss algorithms for generating random numbers from PH distributions and propose two algorithms for reducing the cost associated with generating

Telek, Miklós

68

Advanced Distributed Generation LLC | Open Energy Information  

Open Energy Info (EERE)

LLC LLC Jump to: navigation, search Name Advanced Distributed Generation LLC Address 200 West Scott Park Drive, MS # 410 Place Toledo, Ohio Zip 43607 Sector Solar Product Agriculture; Consulting; Installation; Maintenance and repair; Retail product sales and distribution Phone number 419-725-3401 Website http://www.advanced-dg.com Coordinates 41.6472294°, -83.5975882° 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":41.6472294,"lon":-83.5975882,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

69

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. Juanic; G.F. Rinalde; E. Taglialavore; S. Gortari

2010-01-01T23:59:59.000Z

70

Integrated, Automated Distributed Generation Technologies Demonstration  

SciTech Connect

The purpose of the NETL Project was to develop a diverse combination of distributed renewable generation technologies and controls and demonstrate how the renewable generation could help manage substation peak demand at the ATK Promontory plant site. The Promontory plant site is located in the northwestern Utah desert approximately 25 miles west of Brigham City, Utah. The plant encompasses 20,000 acres and has over 500 buildings. The ATK Promontory plant primarily manufactures solid propellant rocket motors for both commercial and government launch systems. The original project objectives focused on distributed generation; a 100 kW (kilowatt) wind turbine, a 100 kW new technology waste heat generation unit, a 500 kW energy storage system, and an intelligent system-wide automation system to monitor and control the renewable energy devices then release the stored energy during the peak demand time. The original goal was to reduce peak demand from the electrical utility company, Rocky Mountain Power (RMP), by 3.4%. For a period of time we also sought to integrate our energy storage requirements with a flywheel storage system (500 kW) proposed for the Promontory/RMP Substation. Ultimately the flywheel storage system could not meet our project timetable, so the storage requirement was switched to a battery storage system (300 kW.) A secondary objective was to design/install a bi-directional customer/utility gateway application for real-time visibility and communications between RMP, and ATK. This objective was not achieved because of technical issues with RMP, ATK Information Technology Departments stringent requirements based on being a rocket motor manufacturing facility, and budget constraints. Of the original objectives, the following were achieved: Installation of a 100 kW wind turbine. Installation of a 300 kW battery storage system. Integrated control system installed to offset electrical demand by releasing stored energy from renewable sources during peak hours of the day. Control system also monitors the wind turbine and battery storage system health, power output, and issues critical alarms. Of the original objectives, the following were not achieved: 100 kW new technology waste heat generation unit. Bi-directional customer/utility gateway for real time visibility and communications between RMP and ATK. 3.4% reduction in peak demand. 1.7% reduction in peak demand was realized instead.

Jensen, Kevin

2014-09-30T23:59:59.000Z

71

Property:Distributed Generation System Application | Open Energy  

Open Energy Info (EERE)

System Application System Application Jump to: navigation, search This is a property of type Page. Pages using the property "Distributed Generation System Application" Showing 22 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Combined Heat and Power + Distributed Generation Study/615 kW Waukesha Packaged System + Combined Heat and Power + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Combined Heat and Power + Distributed Generation Study/Arrow Linen + Combined Heat and Power + Distributed Generation Study/Dakota Station (Minnegasco) + Combined Heat and Power + Distributed Generation Study/Elgin Community College + Combined Heat and Power + Distributed Generation Study/Emerling Farm + Combined Heat and Power +

72

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

selection of on-site power generation with combined heat andTotal Electricity Generation Figure 13. Small MercantileWeekday Total Electricity Generation (No Storage Adoption

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

73

A DISTRIBUTED SHARED KEY GENERATION PROCEDURE USING FRACTIONAL KEYS  

E-Print Network (OSTI)

A DISTRIBUTED SHARED KEY GENERATION PROCEDURE USING FRACTIONAL KEYS R. Poovendran, M. S. Corson, J}@isr.umd.edu ABSTRACT W e present a new class of distributed key generation and recovery algorithms suitable for group) with a Group Con- troller (GC) which can generate and distribute the keys. However, in these approaches

Baras, John S.

74

Generating Probability Distributions using Multivalued Stochastic Relay Circuits  

E-Print Network (OSTI)

Generating Probability Distributions using Multivalued Stochastic Relay Circuits David Lee Dept as well as for generating arbitrary distributions from unbiased bits. An equally interesting, but less networks that generate arbitrary probability distributions in an optimal way? In this paper, we study

Bruck, Jehoshua (Shuki)

75

ON RANDOM VARIATE GENERATION FOR THE GENERALIZED HYPERBOLIC SECANT DISTRIBUTIONS  

E-Print Network (OSTI)

ON RANDOM VARIATE GENERATION FOR THE GENERALIZED HYPERBOLIC SECANT DISTRIBUTIONS Luc Devroye School distribution. Finally, we give a generator for the nef--ghs distribution. There are, of course, two things we of Computer Science McGill University Abstract. We give random variate generators for the generalized

Devroye, Luc

76

A FULLY DISTRIBUTED PRIME NUMBERS GENERATION USING THE WHEEL SIEVE  

E-Print Network (OSTI)

A FULLY DISTRIBUTED PRIME NUMBERS GENERATION USING THE WHEEL SIEVE Gabriel Paillard Laboratoire d distributed approach for generating all prime numbers up to a given limit. From Er- atosthenes, who elaborated. In this work, we propose a new distributed algorithm which generates all prime num- bers in a given finite

Paris-Sud XI, Université de

77

Poisson Distributed Noise Generation for Spiking Neural Applications  

E-Print Network (OSTI)

Poisson Distributed Noise Generation for Spiking Neural Applications Katherine Cameron, Thomas neural networks. However, it can be difficult to generate large truly random spike distributions which as randomly firing and a matlab generated Poisson distributed noise source. A hazard function shows

Cameron, Katherine

78

Our Data, Ourselves: Privacy via Distributed Noise Generation  

E-Print Network (OSTI)

Our Data, Ourselves: Privacy via Distributed Noise Generation Cynthia Dwork1 , Krishnaram of the noise generation is to create a distributed implemen- tation of the privacy-preserving statistical. The generation of Gaussian noise introduces a technique for distributing shares of many unbiased coins with fewer

Chang, Edward Y.

79

Distributed Generation Technologies DGT | Open Energy Information  

Open Energy Info (EERE)

DGT DGT Jump to: navigation, search Name Distributed Generation Technologies (DGT) Place Ithaca, New York Zip 14850 Product Commercializing a technology to convert organic waste into pure and compressed methane gas via anaerobic digestion. Coordinates 39.93746°, -84.553194° 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":39.93746,"lon":-84.553194,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

80

SOFC combined cycle systems for distributed generation  

SciTech Connect

The final phase of the tubular SOFC development program will focus on the development and demonstration of pressurized solid oxide fuel cell (PSOFC)/gas turbine (GT) combined cycle power systems for distributed power applications. The commercial PSOFC/GT product line will cover the power range 200 kWe to 50 MWe, and the electrical efficiency for these systems will range from 60 to 75% (net AC/LHV CH4), the highest of any known fossil fueled power generation technology. The first demonstration of a pressurized solid oxide fuel cell/gas turbine combined cycle will be a proof-of-concept 250 kWe PSOFC/MTG power system consisting of a single 200 kWe PSOFC module and a 50 kWe microturbine generator (MTG). The second demonstration of this combined cycle will be 1.3 MWe fully packaged, commercial prototype PSOFC/GT power system consisting of two 500 kWe PSOFC modules and a 300 kWe gas turbine.

Brown, R.A.

1997-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

SciTech Connect

The motivation and objective of this research is to determine the role of distributed generation (DG) in greenhouse gas reductions by: (1) applying the Distributed Energy Resources Customer Adoption Model (DER-CAM); (2) using the California Commercial End-Use Survey (CEUS) database for commercial buildings; (3) selecting buildings with electric peak loads between 100 kW and 5 MW; (4) considering fuel cells, micro-turbines, internal combustion engines, gas turbines with waste heat utilization, solar thermal, and PV; (5) testing of different policy instruments, e.g. feed-in tariff or investment subsidies.

Marnay, Chris; Stadler, Michael; Lipman, Tim; Lai, Judy; Cardoso, Goncalo; Megel, Olivier

2009-09-01T23:59:59.000Z

82

Next Generation Calibration Models with Dimensional Modeling...  

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

Documents & Publications Reduction of Transient Particulate Matter Spikes with Decision Tree Based Control Model-Based Transient Calibration Optimization for Next Generation Diesel...

83

Property:Distributed Generation System Heating-Cooling Application | Open  

Open Energy Info (EERE)

Heating-Cooling Application Heating-Cooling Application Jump to: navigation, search This is a property of type Page. Pages using the property "Distributed Generation System Heating-Cooling Application" Showing 21 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Domestic Hot Water +, Space Heat and/or Cooling + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Domestic Hot Water + Distributed Generation Study/Arrow Linen + Domestic Hot Water + Distributed Generation Study/Dakota Station (Minnegasco) + Space Heat and/or Cooling +, Other + Distributed Generation Study/Elgin Community College + Space Heat and/or Cooling +, Domestic Hot Water + Distributed Generation Study/Emerling Farm + Domestic Hot Water +, Process Heat and/or Cooling +

84

Voltage Control of Distribution Networks with Distributed Generation using Reactive Power  

E-Print Network (OSTI)

Voltage Control of Distribution Networks with Distributed Generation using Reactive Power. Nasiruzzaman Abstract--Voltage profile of distribution networks with dis- tributed generation are affected significantly due to the integra- tion of distributed generation (DG) on it. This paper presents a way

Pota, Himanshu Roy

85

Enhancing reliability in passive anti-islanding protection schemes for distribution systems with distributed generation.  

E-Print Network (OSTI)

??This thesis introduces a new approach to enhance the reliability of conventional passive anti-islanding protection scheme in distribution systems embedding distributed generation. This approach uses (more)

Sheikholeslamzadeh, Mohsen

2012-01-01T23:59:59.000Z

86

Optimal Algorithms for Generating Discrete Random Variables with Changing Distributions  

E-Print Network (OSTI)

Optimal Algorithms for Generating Discrete Random Variables with Changing Distributions T. Hagerup arithmetic and the floor function, 3. generating a uniformly distributed real number between 0 and 1 K. Mehlhorn I. Munro Abstract We give optimal algorithms for generating discrete random variables

Mehlhorn, Kurt

87

Marking in Combinatorial Constructions: Generating Functions and Limiting Distributions  

E-Print Network (OSTI)

Marking in Combinatorial Constructions: Generating Functions and Limiting Distributions Michael generating function y(x) = P ynx n for the numbers yn of objects of size n and the bivariate generating of this paper is to provide general methods to obtain the asymptotic limiting distribution of this additional

Drmota, Michael

88

Distributions of permutations generated by inhomogeneous Markov chains  

E-Print Network (OSTI)

Distributions of permutations generated by inhomogeneous Markov chains Diplomarbeit von Thomas 72 C Matlab - code for MCIT generated distributions 74 D Maple - code for the number of non for distributions of Bernoulli trials . . . . . . . . . . . . . . . 4 2.2.2 MCIT for quality control schemes

Neininger, Ralph

89

Optimal Allocation of Distributed Generators in a Distribution Network Using Adaptive Multi-Objective Particle Swarm Optimization  

Science Journals Connector (OSTI)

This study presents the optimal allocation of distributed generators (DGs) in distribution network based on...

Shan Cheng; Min-You Chen; Peter J. Fleming

2012-01-01T23:59:59.000Z

90

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

of fossil fuel sources of waste heat and other lossesthat this is only the waste heat from fossil generation,an estimate of the total waste heat from fossil generation

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

91

On Optimization of Reliability of Distributed Generation-Enhanced Feeders  

Science Journals Connector (OSTI)

Placement of protection devices in a conventionalfeeder (without distributed generation) is often performedso as to minimize traditional reliability indices (SAIDI,SAIFI, MAIFIe...), assuming the sole source(s) of energyat substation(s). Distributed ...

A. Pregelj; M. Begovic; A. Rohatgi; D. Novosel

2003-01-01T23:59:59.000Z

92

Distributed Renewable Energy Generation and Landscape Architecture: A Critical Review.  

E-Print Network (OSTI)

??Governments and utility organizations around the world have mandated and provided incentives for new distributed renewable energy generation (DREG) capacity, and market projections indicate strong (more)

Beck, Osmer DeVon

2010-01-01T23:59:59.000Z

93

Distributed Generation Study/Patterson Farms CHP System Using...  

Open Energy Info (EERE)

Biogas < Distributed Generation Study Jump to: navigation, search Study Location Auburn, New York Site Description Agricultural Study Type Field Test Technology Internal Combustion...

94

CleanDistributedGeneration.pdf | Department of Energy  

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

anDistributedGeneration.pdf More Documents & Publications Output-Based Regulations: A Handbook for Air Regulators (U.S. EPA), August 2004 CHP Assessment, California Energy...

95

Distributed Generation Investment by a Microgrid under Uncertainty  

E-Print Network (OSTI)

KM. Distributed generation investment and upgrade underin gas fired power plant investments. Review of Financial13] Dixit AK, Pindyck RS. Investment under uncertainty.

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

96

Stationary/Distributed Generation Projects | Department of Energy  

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

for fuel cells. Stationary fuel cell units are used for backup power, power for remote locations, stand-alone power plants for towns and cities, distributed generation...

97

A benchmark diagnostic model generation system  

Science Journals Connector (OSTI)

It is critical to use automated generators for synthetic models and data given the sparsity of benchmark models for empirical analysis and the cost of generating models by hand. We describe an automated generator for benchmark models that is based on ... Keywords: benchmark model generation, compositional modeling, diagnosis

Jun Wang; Gregory Provan

2010-05-01T23:59:59.000Z

98

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

most commercial buildings, electricity costs far exceed heatoffset by lower electricity costs from on- site generation (as much from lower electricity costs as it does from lower

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

99

Renewable Energy: Distributed Generation Policies and Programs...  

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

resources. Net Metering State net metering policies allow customers to produce onsite electricity and sell excess generation to the utility at a set price, which creates an...

100

Synthesised Constraint Models for Distributed Energy Management  

E-Print Network (OSTI)

for optimisation have been widely ignored ­ a gap we aim to close. As a by-product, we give a formulation of warmSynthesised Constraint Models for Distributed Energy Management Alexander Schiendorfer, Jan frequently encountered in energy management systems such as the coordination of power generators in a virtual

Reif, Wolfgang

Note: This page contains sample records for the topic "modeling distributed generation" 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

Low-cost distributed solar-thermal-electric power generation  

E-Print Network (OSTI)

Low-cost distributed solar-thermal-electric power generation A. Der Minassians, K. H. Aschenbach and feasibility study of a low-cost solar thermal electricity generation technology, suitable for distributed: Solar Thermal Collectors, Solar Thermal Electricity, Stirling Engine 1. INTRODUCTION In this paper, we

Sanders, Seth

102

Generating Efficient Tiled Code for Distributed Memory Machines and Jingling Xue  

E-Print Network (OSTI)

Generating Efficient Tiled Code for Distributed Memory Machines Peiyi Tang and Jingling Xue issues are addressed: computation and data distribution, message-passing code generation, memory man Generate SPMD Code Computation Distribution Data Distribution Message-Passing Code Generation

Tang, Peiyi

103

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

power generation with combined heat and power applications,of carbon tax on combined heat and power adoption by a131(1), 2-25. US Combined Heat and Power Association (

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

104

Distributed Generation in Buildings (released in AEO2005)  

Reports and Publications (EIA)

Currently, distributed generation provides a very small share of residential and commercial electricity requirements in the United States. The Annual Energy Outlook 2005 reference case projects a significant increase in electricity generation in the buildings sector, but distributed generation is expected to remain a small contributor to the sectors energy needs. Although the advent of higher energy prices or more rapid improvement in technology could increase the use of distributed generation relative to the reference case projection, the vast majority of electricity used in buildings is projected to continue to be purchased from the grid.

2008-01-01T23:59:59.000Z

105

ARPA-E Announces $30 Million for Distributed Generation Technologies |  

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

30 Million for Distributed Generation 30 Million for Distributed Generation Technologies ARPA-E Announces $30 Million for Distributed Generation Technologies November 25, 2013 - 1:00pm Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - Today, the Department of Energy announced up to $30 million in Advanced Research Projects Agency - Energy (ARPA-E) funding for a new program focused on the development of transformational electrochemical technologies to enable low-cost distributed power generation. ARPA-E's Reliable Electricity Based on ELectrochemical Systems (REBELS) program will develop fuel cell technology for distributed power generation to improve grid stability, increase energy security, and balance intermittent renewable technologies while reducing CO2 emissions associated with current

106

The Value of Distributed Generation (DG) under Different Tariff Structures  

Open Energy Info (EERE)

The Value of Distributed Generation (DG) under Different Tariff Structures The Value of Distributed Generation (DG) under Different Tariff Structures Jump to: navigation, search Tool Summary LAUNCH TOOL Name: The Value of Distributed Generation (DG) under Different Tariff Structures Focus Area: Renewable Energy Topics: Socio-Economic Website: eetd.lbl.gov/ea/emp/reports/60589.pdf Equivalent URI: cleanenergysolutions.org/content/value-distributed-generation-dg-under Language: English Policies: "Regulations,Financial Incentives" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. Regulations: Utility/Electricity Service Costs This report examines the standby tariff structures recently implemented in New York as a result of utilities feelings toward distributed generation

107

Applying epoch-era analysis for homeowner selection of distributed generation power systems  

E-Print Network (OSTI)

The current shift from centralized energy generation to a more distributed model has opened a number of choices for homeowners to provide their own power. While there are a number of systems to purchase, there are no tools ...

Pia, Alexander L

2014-01-01T23:59:59.000Z

108

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

SciTech Connect

This report summarizes the work performed by Honeywell during the January 2002 to March 2002 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. For this reporting period the following activities have been carried out: {lg_bullet} Conceptual system design trade studies were performed {lg_bullet} System-level performance model was created {lg_bullet} Dynamic control models are being developed {lg_bullet} Mechanical properties of candidate heat exchanger materials were investigated {lg_bullet} SOFC performance mapping as a function of flow rate and pressure was completed

Nguyen Minh

2002-03-31T23:59:59.000Z

109

Notice of Study Availability - Potential Benefits of Distributed Generation  

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

Study Availability - Potential Benefits of Distributed Study Availability - Potential Benefits of Distributed Generation and Rate-Related Issues That May Impede Their Expansion: Federal Register Notice Volume 72, No. 40 - Mar. 1, 2007 Notice of Study Availability - Potential Benefits of Distributed Generation and Rate-Related Issues That May Impede Their Expansion: Federal Register Notice Volume 72, No. 40 - Mar. 1, 2007 Federal Register Notice of availability of a study of the potential benefits of distributed generation and rate-related issues that may impede their expansion, and request for public comment. Study of the Potential Benefits of Distributed Generation and Rate- Related Issues That May Impede Their Expansion More Documents & Publications Notice of inquiry and request for Information - Study of the potential

110

Options for Control of Reactive Power by Distributed Photovoltaic Generators  

E-Print Network (OSTI)

High penetration levels of distributed photovoltaic(PV) generation on an electrical distribution circuit present several challenges and opportunities for distribution utilities. Rapidly varying irradiance conditions may cause voltage sags and swells that cannot be compensated by slowly responding utility equipment resulting in a degradation of power quality. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We discuss and compare via simulation various design options for control systems to manage the reactive power generated by these inverters. An important design de...

Sulc, Petr; Backhaus, Scott; Chertkov, Michael

2010-01-01T23:59:59.000Z

111

Review of anti-islanding techniques in distributed generators  

Science Journals Connector (OSTI)

In this paper a revision about different techniques for islanding detection in distributed generators is presented. On one hand, remote techniques, not integrated in the distributed generators, are discussed. On the other hand, local techniques, integrated in the distributed generator, are described. Furthermore, it is discussed how the local techniques are divided into passive techniques, based on exclusively monitoring some electrical parameters, and active techniques, which intentionally introduce disturbances at the output of the inverter, in order to determine if some parameters are affected.

D. Velasco; C.L. Trujillo; G. Garcer; E. Figueres

2010-01-01T23:59:59.000Z

112

Network Capacity Assessment of CHP-based Distributed Generation on Urban Energy Distribution Networks.  

E-Print Network (OSTI)

??The combined heat and power (CHP)-based distributed generation (DG) or dis-tributed energy resources (DERs) are mature options available in the present energy mar-ket, considered to (more)

Zhang, Xianjun

2013-01-01T23:59:59.000Z

113

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

in floor tiles for thermal energy storage, working paper,D. R. (2000). Thermal energy storage for space cooling,A simple model of thermal energy storage is developed as a

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

114

FlexibleSUSY -- A spectrum generator generator for supersymmetric models  

E-Print Network (OSTI)

We introduce FlexibleSUSY, a Mathematica and C++ package, which generates a fast, precise C++ spectrum generator for any SUSY model specified by the user. The generated code is designed with both speed and modularity in mind, making it easy to adapt and extend with new features. The model is specified by supplying the superpotential, gauge structure and particle content in a SARAH model file; specific boundary conditions e.g. at the GUT, weak or intermediate scales are defined in a separate FlexibleSUSY model file. From these model files, FlexibleSUSY generates C++ code for self-energies, tadpole corrections, renormalization group equations (RGEs) and electroweak symmetry breaking (EWSB) conditions and combines them with numerical routines for solving the RGEs and EWSB conditions simultaneously. The resulting spectrum generator is then able to solve for the spectrum of the model, including loop-corrected pole masses, consistent with user specified boundary conditions. The modular structure of the generated co...

Athron, Peter; Stckinger, Dominik; Voigt, Alexander

2014-01-01T23:59:59.000Z

115

Integrating Small Scale Distributed Generation into a Deregulated Market: Control Strategies and Price Feedback  

E-Print Network (OSTI)

Small scale power generating technologies, such as gas turbines, small hydro turbines, photovoltaics, wind turbines and fuel cells, are gradually replacing conventional generating technologies, for various applications, in the electric power system. The industry restructuring process in the United States is exposing the power sector to market forces, which is creating competitive structures for generation and alternative regulatory structures for the transmission and distribution systems. The potentially conflicting economic and technical demands of the new, independent generators introduce a set of significant uncertainties. What balance between market forces and centralized control will be found to coordinate distribution system operations? How will the siting of numerous small scale generators in distribution feeders impact the technical operations and control of the distribution system? Who will provide ancillary services (such as voltage support and spinning reserves) in the new competitive environment? This project investigates both the engineering and market integration of distributed generators into the distribution system. On the technical side, this project investigates the frequency performance of a distribution system that has multiple small scale generators. Using IEEE sample distribution systems and new dynamic generator models, this project develops general methods for

Judith Cardell; Marija Ili?; Richard D. Tabors

1997-01-01T23:59:59.000Z

116

Distributed Generation System Characteristics and Costs in the Buildings  

Gasoline and Diesel Fuel Update (EIA)

1.6 mb) 1.6 mb) Appendix A - Photovoltaic (PV) Cost and Performance Characteristics for Residential and Commercial Applications (1.0 mb) Appendix B - The Cost and Performance of Distributed Wind Turbines, 2010-35 (0.5 mb) Distributed Generation System Characteristics and Costs in the Buildings Sector Release date: August 7, 2013 Distributed generation in the residential and commercial buildings sectors refers to the on-site generation of energy, often electricity from renewable energy systems such as solar photovoltaics (PV) and small wind turbines. Many factors influence the market for distributed generation, including government policies at the local, state, and federal level, and project costs, which vary significantly depending on time, location, size, and application.

117

Smart Grids Operation with Distributed Generation and Demand Side Management  

Science Journals Connector (OSTI)

The integration of Distributed Generation (DG) based on renewable sources in the Smart Grids (SGs) is considered a challenging task because of the problems arising for the intermittent nature of the sources (e.g....

C. Cecati; C. Citro; A. Piccolo; P. Siano

2012-01-01T23:59:59.000Z

118

Characteristics of Vector Surge Relays for Distributed Synchronous Generator Protection  

SciTech Connect

This work presented a detailed investigation on the performance characteristics if vector surge relays to detect islanding of distributed synchronous generators. A detection time versus active power imbalance curve is proposed to evaluate the relay performance. Computer simulations are used to obtain the performance curves. The concept of critical active power imbalance is introduced based on these curves. Main factors affecting the performance of the relays are analyzed. The factors investigated are voltage-dependent loads, load power factor, inertia constant of the generator, generator excitation system control mode, feeder length and R/X ratio as well as multi-distributed generators. The results are a useful guideline to evaluate the effectiveness of anti-islanding schemes based on vector surge relays for distributed generation applications.

Freitas, Walmir; Xu, Wilsun; Huang, Zhenyu; Vieira, Jose C.

2007-02-28T23:59:59.000Z

119

Distributed Generation Investment by a Microgrid Under Uncertainty  

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

Distributed Generation Investment by a Microgrid Under Uncertainty Distributed Generation Investment by a Microgrid Under Uncertainty Speaker(s): Afzal Siddiqui Date: July 24, 2006 - 12:00pm Location: 90-3122 This study examines a California-based microgrid's decision to invest in a distributed generation (DG) unit that operates on natural gas. While the long-term natural gas generation cost is stochastc, we initially assume that the microgrid may purchase electricity at a fixed retail rate from its utility. Using the real options approach, we find natural gas generation cost thresholds that trigger DG investment. Furthermore, the consideration of operational flexibility by the microgrid accelerates DG investment, while the option to disconnect entirely from the utility is not attractive. By allowing the electricity price to be stochastic, we next determine an

120

Local Control of Reactive Power by Distributed Photovoltaic Generators  

E-Print Network (OSTI)

High penetration levels of distributed photovoltaic (PV) generation on an electrical distribution circuit may severely degrade power quality due to voltage sags and swells caused by rapidly varying PV generation during cloud transients coupled with the slow response of existing utility compensation and regulation equipment. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We suggest a local control scheme that dispatches reactive power from each PV inverter based on local instantaneous measurements of the real and reactive components of the consumed power and the re...

Turitsyn, Konstantin S; Backhaus, Scott; Chertkov, Misha

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

Local control of reactive power by distributed photovoltaic generators  

SciTech Connect

High penetration levels of distributed photovoltaic (PV) generation on an electrical distribution circuit may severely degrade power quality due to voltage sags and swells caused by rapidly varying PV generation during cloud transients coupled with the slow response of existing utility compensation and regulation equipment. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We suggest a local control scheme that dispatches reactive power from each PV inverter based on local instantaneous measurements of the real and reactive components of the consumed power and the real power generated by the PVs. Using one adjustable parameter per circuit, we balance the requirements on power quality and desire to minimize thermal losses. Numerical analysis of two exemplary systems, with comparable total PV generation albeit a different spatial distribution, show how to adjust the optimization parameter depending on the goal. Overall, this local scheme shows excellent performance; it's capable of guaranteeing acceptable power quality and achieving significant saving in thermal losses in various situations even when the renewable generation in excess of the circuit own load, i.e. feeding power back to the higher-level system.

Chertkov, Michael [Los Alamos National Laboratory; Turitsyn, Konstantin [Los Alamos National Laboratory; Sulc, Petr [Los Alamos National Laboratory; Backhaus, Scott [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

122

Distributed Generation Study/Elgin Community College | Open Energy  

Open Energy Info (EERE)

Elgin Community College Elgin Community College < Distributed Generation Study Jump to: navigation, search Study Location Elgin, Illinois Site Description Institutional-School/University Study Type Case Study Technology Internal Combustion Engine Prime Mover Waukesha VHP5108GL Heat Recovery Systems Beaird Maxim Model TRP-12 Fuel Natural Gas System Installer Morse Electric Company System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 4 Stand-alone Capability Manual Power Rating 3220 kW3.22 MW 3,220,000 W 3,220,000,000 mW 0.00322 GW 3.22e-6 TW Nominal Voltage (V) 4160 Heat Recovery Rating (BTU/hr) 11200000 Cooling Capacity (Refrig/Tons) 550 Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 1997/05/01

123

Distributed Generation Study/Modern Landfill | Open Energy Information  

Open Energy Info (EERE)

Landfill Landfill < Distributed Generation Study Jump to: navigation, search Study Location Model City, New York Site Description Other Utility Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G3516 Heat Recovery Systems Built-in Fuel Biogas System Installer Innovative Energy Systems System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 7 Stand-alone Capability Seamless Power Rating 5600 kW5.6 MW 5,600,000 W 5,600,000,000 mW 0.0056 GW 5.6e-6 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 28000000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2004/12/31 Monitoring Termination Date 1969/12/31

124

Cogeneration and Distributed Generation1 This appendix describes cogeneration and distributed generating resources. Also provided is an  

E-Print Network (OSTI)

reinforcement, remote loads more economically served by small-scale generation than by distribution system. · Reliability upgrade for systems susceptible to outages. · Alternative to the expansion of transmission

125

Investment and Upgrade in Distributed Generation under Uncertainty  

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

Investment and Upgrade in Distributed Generation under Uncertainty Investment and Upgrade in Distributed Generation under Uncertainty Speaker(s): Afzal Siddiqui Karl Maribu Date: September 4, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Galen Barbose The ongoing deregulation of electricity industries worldwide is providing incentives for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via heat exchangers (HXs) to meet local energy loads. Although the electric-only effciency of DG is lower than that of central-station production, relatively high tariff rates and the potential for CHP applications increase the attractiveness of on-site generation. Nevertheless, a microgrid contemplating the installation of gas-fired DG has to be aware of the uncertainty in the

126

Next-Generation Distributed Power Management for Photovoltaic Systems  

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

Next-Generation Distributed Power Management for Photovoltaic Systems Next-Generation Distributed Power Management for Photovoltaic Systems Speaker(s): Jason Stauth Date: July 29, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Steven Lanzisera In recent years, the balance of systems (BOS) side of photovoltaic (PV) energy has become a major focus in the effort to drive solar energy towards grid parity. The power management architecture has expanded to include a range of distributed solutions, including microinverters and 'micro' DC-DC converters to solve problems with mismatch (shading), expand networking and control, and solve critical BOS issues such as fire safety. This talk will introduce traditional and distributed approaches for PV systems, and will propose a next-generation architecture based on a new

127

Distributed Wind Diffusion Model Overview (Presentation)  

SciTech Connect

Distributed wind market demand is driven by current and future wind price and performance, along with several non-price market factors like financing terms, retail electricity rates and rate structures, future wind incentives, and others. We developed a new distributed wind technology diffusion model for the contiguous United States that combines hourly wind speed data at 200m resolution with high resolution electricity load data for various consumer segments (e.g., residential, commercial, industrial), electricity rates and rate structures for utility service territories, incentive data, and high resolution tree cover. The model first calculates the economics of distributed wind at high spatial resolution for each market segment, and then uses a Bass diffusion framework to estimate the evolution of market demand over time. The model provides a fundamental new tool for characterizing how distributed wind market potential could be impacted by a range of future conditions, such as electricity price escalations, improvements in wind generator performance and installed cost, and new financing structures. This paper describes model methodology and presents sample results for distributed wind market potential in the contiguous U.S. through 2050.

Preus, R.; Drury, E.; Sigrin, B.; Gleason, M.

2014-07-01T23:59:59.000Z

128

Integration of Demand Side Management, Distributed Generation, Renewable  

Open Energy Info (EERE)

Integration of Demand Side Management, Distributed Generation, Renewable Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 2, Annexes Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 2, Annexes Focus Area: Renewable Energy Topics: Policy, Deployment, & Program Impact Website: www.ieadsm.org/Files/Tasks/Task%20XVII%20-%20Integration%20of%20Demand Equivalent URI: cleanenergysolutions.org/content/integration-demand-side-management-di Language: English Policies: Regulations Regulations: Resource Integration Planning This report provides Annexes 1 through 7, which are country reports from

129

Distributed Generation System Characteristics and Costs in the Buildings Sector  

Gasoline and Diesel Fuel Update (EIA)

Distributed Generation System Distributed Generation System Characteristics and Costs in the Buildings Sector August 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Distributed Generation System Characteristics and Costs in the Buildings Sector i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the U.S. Department of Energy or other Federal agencies.

130

Integration of Demand Side Management, Distributed Generation, Renewable  

Open Energy Info (EERE)

Integration of Demand Side Management, Distributed Generation, Renewable Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 1, Main Report Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 1, Main Report Focus Area: Renewable Energy Topics: Policy, Deployment, & Program Impact Website: www.ieadsm.org/Files/Tasks/Task%20XVII%20-%20Integration%20of%20Demand Equivalent URI: cleanenergysolutions.org/content/integration-demand-side-management-di Language: English Policies: Regulations Regulations: Resource Integration Planning This task of the International Energy Agency's (IEA's) Demand-Side

131

Determining the Adequate Level of Distributed Generation Penetration in  

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

Determining the Adequate Level of Distributed Generation Penetration in Determining the Adequate Level of Distributed Generation Penetration in Future Grids Speaker(s): Johan Driesen Date: March 18, 2004 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Kristina LaCommare In this talk, Johan will discuss the technical barriers met while deploying distributed generation (DG) technology in the grid. These are related to voltage quality, reliability, stability of the grid, but also safety, environmental and economic issues are important. Eventually, the question 'how far can you go ?' is addressed. The range from small-scale local DG such as photovoltaics to large-scale (off-shore) wind farms are dealt with, each with their specific issues. The talk is illustrated with examples from research projects at the KULeuven financied by national and European

132

Poland - Economic and Financial Benefits of Distributed Generation  

Open Energy Info (EERE)

Poland - Economic and Financial Benefits of Distributed Generation Poland - Economic and Financial Benefits of Distributed Generation Small-Scale, Gas-Fired CHP Jump to: navigation, search Name Poland - Economic and Financial Benefits of Distributed Generation Small-Scale, Gas-Fired CHP Agency/Company /Organization Argonne National Laboratory Sector Energy Topics Background analysis Website http://www.dis.anl.gov/pubs/41 Country Poland Eastern Europe References http://www.dis.anl.gov/pubs/41763.pdf This article is a stub. You can help OpenEI by expanding it. The Polish energy markets have recently been restructured, opening the door to new players with access to new products and instruments. In response to this changed environment, the Government of Poland and the Polish Power Grid Company were interested in analyzing the competitiveness of

133

Distributed Generation Study/SUNY Buffalo | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Study/SUNY Buffalo Distributed Generation Study/SUNY Buffalo < Distributed Generation Study Jump to: navigation, search Study Location Buffalo, New York Site Description Institutional-School/University Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Gerster Trane System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 600000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2002/12/11 Monitoring Termination Date 2004/08/11

134

Distributed Generation: Which technologies? How fast will they emerge?  

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

Distributed Generation: Which technologies? How fast will they emerge? Distributed Generation: Which technologies? How fast will they emerge? Speaker(s): Tony DeVuono Date: March 16, 2000 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Julie Osborn Utility deregulation, environmental issues, increases in electricity demand, natural gas/electricity rate changes, new technologies, and several other key drivers are stimulating distributed generation globally. The technologies that have pushed ahead of the pack are micro turbines and fuel cells. Since Modine is a world leader in the manufacturing of heat transfer equipment, we are eager to play in this new, emerging market. Are the market drivers real? Will these technologies survive or even thrive? What are the pitfalls? If you had the responsibility in your company to spend millions and direct dozens of people down the DG path,

135

Acceptance-rejection methods for generating random variates from matrix exponential distributions and rational  

E-Print Network (OSTI)

Acceptance-rejection methods for generating random variates from matrix exponential distributions generation, Simulation, Matrix Exponential Distributions, Rational Arrival Processes. 1. INTRODUCTION Despite on the efficient generation of random variates of matrix exponential (ME) distributions [10] and rational arrival

Telek, Miklós

136

List of Other Distributed Generation Technologies Incentives | Open Energy  

Open Energy Info (EERE)

Incentives Incentives Jump to: navigation, search The following contains the list of 123 Other Distributed Generation Technologies Incentives. CSV (rows 1 - 123) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active APS - Renewable Energy Incentive Program (Arizona) Utility Rebate Program Arizona Commercial Residential Anaerobic Digestion Biomass Daylighting Geothermal Electric Ground Source Heat Pumps Landfill Gas Other Distributed Generation Technologies Photovoltaics Small Hydroelectric Solar Pool Heating Solar Space Heat Solar Thermal Process Heat Solar Water Heat Wind energy Yes Alternative Energy Portfolio Standard (Pennsylvania) Renewables Portfolio Standard Pennsylvania Investor-Owned Utility Retail Supplier Building Insulation Ceiling Fan

137

A 10 GS/s Distributed Waveform Generator for Sub-Nanosecond Pulse Generation and Modulation in Standard Digital CMOS  

E-Print Network (OSTI)

A 10 GS/s Distributed Waveform Generator for Sub-Nanosecond Pulse Generation and Modulation, Email:hwu@ece.rochester.edu Abstract-- A distributed waveform generator is presented for sub a distributed waveform generator (DWG) circuit in a time-interleaved architecture suitable for standard CMOS

Wu, Hui

138

GENERATING SYNCHRONIZABLE TEST SEQUENCES BASED ON FINITE STATE MACHINE WITH DISTRIBUTED PORTS 1  

E-Print Network (OSTI)

GENERATING SYNCHRONIZABLE TEST SEQUENCES BASED ON FINITE STATE MACHINE WITH DISTRIBUTED PORTS 1 with several distributed interfaces, called ports. A test generation method is developed for generating test generation and fault detectability. Several types of such interfaces have been standardized

von Bochmann, Gregor

139

A Game Strategy for Power Flow Control of Distributed Generators in Smart Grids  

Science Journals Connector (OSTI)

We consider the distributed power control problem of distributed generators(DGs) in smart grid. In order...

Jianliang Zhang; Donglian Qi; Guoyue Zhang

2014-01-01T23:59:59.000Z

140

Analytically solvable geometric network growth model with arbitrary degree distribution  

E-Print Network (OSTI)

We construct a class of network growth models capable of producing arbitrary degree distributions. The conditions necessary for generating the desired degree distribution can be derived analytically. In this model, a network is generated as a result of local interactions among agents residing on a metric space. Specifically, we study the case of random-walking agents who form bonds when they meet at designated locations we refer to as "rendezvous points." The spatial distribution of the rendezvous points determines key characteristics of the network such as the degree distribution. For any arbitrary (monotonic) degree distribution, we are able to analytically solve for the required rendezvous point distribution. Certain features of the model including high clustering coefficients suggest that it may be a suitable candidate for modeling biological and urban networks.

Dianati, Navid

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

Clean Distributed Generation for Slum Electrification: The Case of Mumbai  

E-Print Network (OSTI)

the lack of electrification in slums in India, focussing on the slums in the city of Mumbai as a case studyClean Distributed Generation for Slum Electrification: The Case of Mumbai This paper discusses the city's 16 million inhabitants in 2335 distinct settlements, are used as a case-study throughout

Mauzerall, Denise

142

Iowa Distributed Wind Generation Project | Open Energy Information  

Open Energy Info (EERE)

Generation Project Generation Project Jump to: navigation, search Name Iowa Distributed Wind Generation Project Facility Iowa Distributed Wind Generation Project Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Consortium -- Cedar Falls leads with 2/3 ownership Developer Iowa Distributed Wind Generation Project Energy Purchaser Consortium -- Cedar Falls leads with 2/3 ownership Location Algona IA Coordinates 43.0691°, -94.2255° 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":43.0691,"lon":-94.2255,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

143

NREL: Energy Analysis - Distributed Generation Energy Technology Capital  

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

Capital Costs Capital Costs Transparent Cost Database Button The following charts indicate recent capital cost estimates for distributed generation (DG) renewable energy technologies. The estimates are shown in dollars per installed kilowatt of generating capacity or thermal energy capacity for thermal technologies. The charts provide a compilation of available national-level cost data from a variety of sources. Costs in your specific location will vary. The red horizontal lines represent the first standard deviation of the mean. The U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP) sponsored the distributed generation data used within these charts. If you are seeking utility-scale technology capital cost estimates, please visit the Transparent Cost Database website for NREL's information

144

NREL: Energy Analysis - Distributed Generation Energy Technology Operations  

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

Operations and Maintenance Costs Operations and Maintenance Costs Transparent Cost Database Button The following charts indicate recent operations and maintenance (O&M) cost estimates for distributed generation (DG) renewable energy technologies. The charts provide a compilation of available national-level cost data from a variety of sources. Costs in your specific location will vary. The red horizontal lines represent the first standard deviation of the mean. The U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP) sponsored the distributed generation data used within these charts. If you are seeking utility-scale technology operations and maintenance estimates, please visit the Transparent Cost Database website for NREL's information regarding vehicles, biofuels, and electricity generation.

145

Introduction to Distributed Generation and the CERTS Microgrid  

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

Introduction to Distributed Generation and the CERTS Microgrid Introduction to Distributed Generation and the CERTS Microgrid Speaker(s): Chris Marnay Date: December 3, 2002 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Kristina LaCommare This is a first in a series of at least 5 seminars around the winter break to survey Distributed Energy Resources (DER) research questions and various Berkeley capabilities available to address them. The electricity industry in industrialized countries may be about to reverse a century long trend towards ever larger scale, ever more centrally controlled power systems. The emergence of technologies that are competitive at small scales, close to loads, in large part because of the opportunities created to capture waste heat and locally control power quality might signal a radical

146

A Radical Distributed Architecture for Local Energy Generation,  

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

A Radical Distributed Architecture for Local Energy Generation, A Radical Distributed Architecture for Local Energy Generation, Distribution, and Sharing Speaker(s): Randy Katz Date: April 25, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Galen Barbose The LoCal Project is developing Information Age solutions to the limiting resource of this century: energy. One hundred fifty years ago, humanity was transformed by harnessing energy for machinery and work. Toil by hand became routinely mechanized, inconceivable constructions became reality, and powered transport shrunk the world. A century later, computers brought an equally profound transformation, replacing mundane bookkeeping and obviating libraries, simulating the imperceptible, and placing knowledge at our fingertips. Information processing has sustained a 50-100% annualized

147

Models on Distributed Memory Architectures  

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

5/2004 Y.He 1 5/2004 Y.He 1 MPH: a Library for Coupling Multi-Component Models on Distributed Memory Architectures and its Applications Yun (Helen) He and Chris Ding CRD Division Lawrence Berkeley National Laboratory 10/15/2004 Y.He 2 10/15/2004 Y.He 3 Motivation n Application problems grow in scale & complexity n Effective organization of simulation software system that is maintainable, reusable, sharable, and efficient è a major issue n Community Climate System Model (CCSM) development n Software lasts much longer than a computer! 10/15/2004 Y.He 4

148

Fuel cell power plants in a distributed generator application  

SciTech Connect

ONSI`s (a subsidiary of International Fuel Cells Corporation) world wide fleet of 200-kW PC25{trademark} phosphoric acid fuel cell power plants which began operation early in 1992 has shown excellent performance and reliability in over 1 million hours of operation. This experience has verified the clean, quiet, reliable operation of the PC25 and confirmed its application as a distributed generator. Continuing product development efforts have resulted in a one third reduction of weight and volume as well as improved installation and operating characteristics for the PC25 C model. Delivery of this unit began in 1995. International Fuel Cells (IFC) continues its efforts to improve product design and manufacturing processes. This progress has been sustained at a compounded rate of 10 percent per year since the late 1980`s. These improvements will permit further reductions in the initial cost of the power plant and place increased emphasis on market development as the pacing item in achieving business benefits from the PC25 fuel cell. Derivative product opportunities are evolving with maturation of the technologies in a commercial environment. The recent announcement of Praxair, Inc., and IFC introducing a non-cryogenic hydrogen supply system utilizing IFC`s steam reformer is an example. 11 figs.

Smith, M.J. [International Fuel Cells Corp., South Windsor, CT (United States)

1996-12-31T23:59:59.000Z

149

NREL: Transmission Grid Integration - Generator Modeling  

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

Generator Modeling Generator Modeling NREL works with the solar and wind industries to provide utilities and grid operators with generator models to help them analyze the impact of variable generation on power system performance and reliability. As the amount of variable generation increases, the need for such models increases. Ensuring the models are as generic as possible allows for ease of use, model validation, data exchange, and analysis. To address this need, NREL researchers are developing generic dynamic models of wind and solar power plants. NREL's dynamic modeling efforts include: Collecting wind plant output data with corresponding wind resource data (speed, direction, and air density) from meteorological towers and performing multivariate analysis of the data to develop an equivalent wind

150

Laboratories for the 21st Century Best Practices: Onsite Distributed Generation Systems For Laboratories  

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

Guide describes general information on implementing onsite distributed generation systems in laboratory environments.

151

Aircraft Power Generators: Hybrid Modeling and  

E-Print Network (OSTI)

Aircraft Power Generators: Hybrid Modeling and Simulation for Fault Detection ASHRAF TANTAWY University Integrated drive generators (IDGs) are the main source of electrical power for a number, and a majority of the existing FDI techniques for the electrical subsystem (brushless generator) are based

Koutsoukos, Xenofon D.

152

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

153

Distributed Generation Study/Harbec Plastics | Open Energy Information  

Open Energy Info (EERE)

< Distributed Generation Study < Distributed Generation Study Jump to: navigation, search Study Location Ontario, New York Site Description Industrial-Plastics Processing Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C30 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Northern Development System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 25 Stand-alone Capability None Power Rating 750 kW0.75 MW 750,000 W 750,000,000 mW 7.5e-4 GW 7.5e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 3750000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2005/10/06 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

154

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

155

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)

156

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

157

Distributed Generation Study/Sea Rise 2 | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Study Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Residential-Multifamily-Single Building Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Coast Intelligen CI60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Grenadier Realty System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1300000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/08/30 Monitoring Termination Date 1969/12/31

158

Distributed Generation Study/Sea Rise 1 | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Study Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Residential-Multifamily-Single Building Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Coast Intelligen CI60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Grenadier Realty System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1300000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/08/30 Monitoring Termination Date 1969/12/31

159

New model for nucleon generalized parton distributions  

SciTech Connect

We describe a new type of models for nucleon generalized parton distributions (GPDs) H and E. They are heavily based on the fact nucleon GPDs require to use two forms of double distribution (DD) representations. The outcome of the new treatment is that the usual DD+D-term construction should be amended by an extra term, {xi} E{sub +}{sup 1} (x,{xi}) which has the DD structure {alpha}/{beta} e({beta},{alpha}, with e({beta},{alpha}) being the DD that generates GPD E(x,{xi}). We found that this function, unlike the D-term, has support in the whole -1 <= x <= 1 region. Furthermore, it does not vanish at the border points |x|={xi}.

Radyushkin, Anatoly V. [JLAB, Newport News, VA (United States)

2014-01-01T23:59:59.000Z

160

Optimal Power Sharing for Microgrid with Multiple Distributed Generators  

Science Journals Connector (OSTI)

Abstract This paper describes the active power sharing of multiple distributed generators (DGs) in a microgrid. The operating modes of a microgrid are 1) a grid-connected mode and 2) an autonomous mode. During islanded operation, one DG unit should share its output power with other DG units in exact accordance with the load. Unit output power control (UPC) is introduced to control the active power of DGs. The viability of the proposed power control mode is simulated by MATLAB/SIMULINK.

V. Logeshwari; N. Chitra; A. Senthil Kumar; Josiah Munda

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

Application of particle swarm optimization for distribution feeder reconfiguration considering distributed generators  

Science Journals Connector (OSTI)

In many countries the power systems are going to move toward creating a competitive structure for selling and buying electrical energy. These changes and the numerous advantages of the distributed generation units (DGs) in term of their technology enhancement and economical considerations have created more incentives to use these kinds of generators than before. Therefore, it is necessary to study the impact of \\{DGs\\} on the power systems, especially on the distribution networks. The distribution feeder reconfiguration (DFR) is one of the most important control schemes in the distribution networks, which can be affected by DGs. This paper presents a new approach to DFR at the distribution networks considering DGs. The main objective of the DFR is to minimize the deviation of the bus voltage, the number of switching operations and the total cost of the active power generated by \\{DGs\\} and distribution companies. Since the DFR is a nonlinear optimization problem, we apply the particle swarm optimization (PSO) approach to solve it. The feasibility of the proposed approach is demonstrated and compared with other evolutionary methods such as genetic algorithm (GA), Tabu search (TS) and differential evolution (DE) over a realistic distribution test system.

J. Olamaei; T. Niknam; G. Gharehpetian

2008-01-01T23:59:59.000Z

162

Fuel cycle comparison of distributed power generation technologies.  

SciTech Connect

The fuel-cycle energy use and greenhouse gas (GHG) emissions associated with the application of fuel cells to distributed power generation were evaluated and compared with the combustion technologies of microturbines and internal combustion engines, as well as the various technologies associated with grid-electricity generation in the United States and California. The results were primarily impacted by the net electrical efficiency of the power generation technologies and the type of employed fuels. The energy use and GHG emissions associated with the electric power generation represented the majority of the total energy use of the fuel cycle and emissions for all generation pathways. Fuel cell technologies exhibited lower GHG emissions than those associated with the U.S. grid electricity and other combustion technologies. The higher-efficiency fuel cells, such as the solid oxide fuel cell (SOFC) and molten carbonate fuel cell (MCFC), exhibited lower energy requirements than those for combustion generators. The dependence of all natural-gas-based technologies on petroleum oil was lower than that of internal combustion engines using petroleum fuels. Most fuel cell technologies approaching or exceeding the DOE target efficiency of 40% offered significant reduction in energy use and GHG emissions.

Elgowainy, A.; Wang, M. Q.; Energy Systems

2008-12-08T23:59:59.000Z

163

Property:Distributed Generation/Site Description | Open Energy Information  

Open Energy Info (EERE)

Generation/Site Description Generation/Site Description Jump to: navigation, search This is a property of type String. The allowed values for this property are: Agricultural Commercial-Hotel Commercial-Ice Arena Commercial-High Rise Office Commercial-Low Rise Office Commercial-Refrigerated Warehouse Commercial-Restaurant Commercial-Retail Store Commercial-Supermarket Commercial-Theater Commercial-Other Institutional-Hospital/Health Care Institutional-Nursing Home Institutional-School/University Institutional-Other Residential-Multifamily-Single Building Residential-Multifamily-Multibuilding Residential-Single Family Industrial-Food Processing Industrial-Plastics Processing Industrial-Wood Products Industrial-Other Testing Laboratory Water Utility Other Utility Other Pages using the property "Distributed Generation/Site Description"

164

Generation of communication schedules for multi-mode distributed real-time applications  

Science Journals Connector (OSTI)

A key problem in designing multi-mode real-time systems is the generation of schedules to reduce the complexities of transforming the model semantics to code. Moreover, distributed multi-mode applications are prone to suffer from delays incurred during ...

Akramul Azim; Gonzalo Carvajal; Rodolfo Pellizzoni; Sebastian Fischmeister

2014-03-01T23:59:59.000Z

165

Efficiency and Air Quality Implications of Distributed Generation and Combined Heat  

E-Print Network (OSTI)

Efficiency and Air Quality Implications of Distributed Generation and Combined Heat and Power March 2011 The Issue Distributed generation generates electricity from many small energy sources near where the electricity is used. The use of distributed generation in urban areas, however, can

166

SYSTEM WIDE ECONOMIC BENEFITS OF DISTRIBUTED GENERATION IN THE NEW ENGLAND  

E-Print Network (OSTI)

SYSTEM WIDE ECONOMIC BENEFITS OF DISTRIBUTED GENERATION IN THE NEW ENGLAND ENERGY MARKET-1027 © Copyright by CEERE #12;1. INTRODUCTION Distributed generation (DG) is generation of electricity close was to evaluate the benefits and costs associated with a distributed generation unit from the perspectives

Massachusetts at Amherst, University of

167

On Linear Independence of Generators of FSI Distribution Spaces on IR  

E-Print Network (OSTI)

On Linear Independence of Generators of FSI Distribution Spaces on IR Jianzhong Wang Abstract. A distribution space is called finitely shift invariant (FSI) if it is generated by a vector-valued distribution of an FSI distribution space and presents a way to find the generators with linear independent shifts

Wang, Jianzhong

168

On the Cost of Generating PH-distributed Random Philipp Reinecke, Katinka Wolter  

E-Print Network (OSTI)

On the Cost of Generating PH-distributed Random Numbers Philipp Reinecke, Katinka Wolter Humboldt systems. The use of these distributions in simulation studies requires efficient methods for generating PH-distributed random numbers. In this work, we consider the cost of PH-distributed random-number generation. I

Telek, Miklós

169

RANDOM VARIATE GENERATION FOR THE DIGAMMA AND TRIGAMMA DISTRIBUTIONS Luc Devroye  

E-Print Network (OSTI)

RANDOM VARIATE GENERATION FOR THE DIGAMMA AND TRIGAMMA DISTRIBUTIONS Luc Devroye School of Computer these distributions and selected generalized hypergeometric distributions. The generators can also be used. Keywords and phrases. Digamma distribution. Random variate generation. Trigamma dis­ tribution. Probability

Devroye, Luc

170

Distributed Generation Systems Inc DISGEN | Open Energy Information  

Open Energy Info (EERE)

DISGEN DISGEN Jump to: navigation, search Name Distributed Generation Systems Inc (DISGEN) Place Lakewood, Colorado Zip 80228 Sector Wind energy Product Developer of Green Mountain (10.4 MW) and Ponnequin (16 MW) wind generation projects in the US. Manages everything from site selection through construction. Coordinates 45.300538°, -88.522572° 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":45.300538,"lon":-88.522572,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

171

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

SciTech Connect

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the July 2003 to December 2003 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a micro-turbine. In addition, an activity included in this program focuses on the development of an integrated coal gasification fuel cell system concept based on planar SOFC technology. Also, another activity included in this program focuses on the development of SOFC scale up strategies.

Faress Rahman; Nguyen Minh

2004-01-04T23:59:59.000Z

172

Modeling Operational Constraints imposed by Renewable Generation  

E-Print Network (OSTI)

investments on ­ Generation, Transmission ­ Fuel & Transportation infrastructure · Capacity · Location · Year Regulation data and Net Load change data ­ ex: ERCOT 2. Function of variability in (Net load + Generation schedule + Tie line frequency) · ex: CAISO, NREL, Xcel MN & Wind Logics 3. Fit regression model

Daniels, Thomas E.

173

Modelling hadronic interactions in HEP MC generators  

E-Print Network (OSTI)

HEP event generators aim to describe high-energy collisions in full exclusive detail. They combine perturbative matrix elements and parton showers with dynamical models of less well-understood phenomena such as hadronization, diffraction, and the so-called underlying event. We briefly summarise some of the main concepts relevant to the modelling of soft/inclusive hadron interactions in MC generators, in particular PYTHIA, with emphasis on questions recently highlighted by LHC data.

Skands, Peter

2014-01-01T23:59:59.000Z

174

Time series power flow analysis for distribution connected PV generation.  

SciTech Connect

Distributed photovoltaic (PV) projects must go through an interconnection study process before connecting to the distribution grid. These studies are intended to identify the likely impacts and mitigation alternatives. In the majority of the cases, system impacts can be ruled out or mitigation can be identified without an involved study, through a screening process or a simple supplemental review study. For some proposed projects, expensive and time-consuming interconnection studies are required. The challenges to performing the studies are twofold. First, every study scenario is potentially unique, as the studies are often highly specific to the amount of PV generation capacity that varies greatly from feeder to feeder and is often unevenly distributed along the same feeder. This can cause location-specific impacts and mitigations. The second challenge is the inherent variability in PV power output which can interact with feeder operation in complex ways, by affecting the operation of voltage regulation and protection devices. The typical simulation tools and methods in use today for distribution system planning are often not adequate to accurately assess these potential impacts. This report demonstrates how quasi-static time series (QSTS) simulation and high time-resolution data can be used to assess the potential impacts in a more comprehensive manner. The QSTS simulations are applied to a set of sample feeders with high PV deployment to illustrate the usefulness of the approach. The report describes methods that can help determine how PV affects distribution system operations. The simulation results are focused on enhancing the understanding of the underlying technical issues. The examples also highlight the steps needed to perform QSTS simulation and describe the data needed to drive the simulations. The goal of this report is to make the methodology of time series power flow analysis readily accessible to utilities and others responsible for evaluating potential PV impacts.

Broderick, Robert Joseph; Quiroz, Jimmy Edward; Ellis, Abraham; Reno, Matthew J. [Georgia Institute of Technology, Atlanta, GA; Smith, Jeff [Electric Power Research Institute, Knoxville, TN; Dugan, Roger [Electric Power Research Institute, Knoxville, TN

2013-01-01T23:59:59.000Z

175

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

176

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

177

Siting and sizing of distributed generation units using GA and OPF  

Science Journals Connector (OSTI)

This paper deals with the important task of finding the optimal siting and sizing of Distributed Generation (DG) units for a given distribution network so that the cost of active and reactive power generation can be minimized. The optimization technique ... Keywords: distributed generation, genetic alghorithm(GA), optimal power flow(OPF)

M. Hosseini Aliabadi; M. Mardaneh; B. Behbahan

2008-01-01T23:59:59.000Z

178

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

179

Distributed clock generator for synchronous SoC using ADPLL network  

E-Print Network (OSTI)

Distributed clock generator for synchronous SoC using ADPLL network E. Zianbetov1 , D. Galayko1 , F, as well as suffering from reduced communication speed. Distributed clock generators are based on the local. The latter is a good candidate for on-chip distributed clock generation, because of better compatibility

Paris-Sud XI, Université de

180

Published in IET Generation, Transmission & Distribution Received on 5th October 2012  

E-Print Network (OSTI)

Published in IET Generation, Transmission & Distribution Received on 5th October 2012 Revised on 31 are small scale power systems that facilitate the effective integration of distributed generators (DG) [1 of multiple photovoltaic generators in a power distribution system [16]. Networked multi-agent systems have

Qu, Zhihua

Note: This page contains sample records for the topic "modeling distributed generation" 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

Efficient protocols for generating bipartite classical distributions and quantum Zhaohui Wei  

E-Print Network (OSTI)

Efficient protocols for generating bipartite classical distributions and quantum states Rahul Jain in optimization, convex geometry, and information theory. 1. To generate a classical distribution P(x, y), we an approximation of is allowed to generate a distribution (X, Y ) P, we present a classical protocol

Jain, Rahul

182

Reactive power management of distribution networks with wind generation for improving voltage stability  

E-Print Network (OSTI)

Reactive power management of distribution networks with wind generation for improving voltage February 2013 Available online Keywords: Composite load Distributed generation D-STATCOM Q with distributed wind generation. Firstly, the impact of high wind penetration on the static voltage stability

Pota, Himanshu Roy

183

Subsystem Interaction Analysis in Power Distribution Systems of Next Generation Airlifters  

E-Print Network (OSTI)

1 Subsystem Interaction Analysis in Power Distribution Systems of Next Generation Airlifters Sriram power distribution system of a next generation transport aircraft is addressed. Detailed analysis with the analysis of subsystem integration in power distribution systems of next generation transport aircraft

Lindner, Douglas K.

184

UK scenario of islanded operation of active distribution networks with renewable distributed generators  

Science Journals Connector (OSTI)

This paper reports on the current UK scenario of islanded operation of active distribution networks with renewable distributed generators (RDGs). Different surveys indicate that the present scenario does not economically justify islanding operation of active distribution networks with RDGs. With rising DG penetration, much benefit would be lost if the \\{DGs\\} are not allowed to island only due to conventional operational requirement of utilities. Technical studies clearly indicate the need to review parts of the Electricity Safety, Quality and Continuity Regulations (ESQCR) for successful islanded operations. Commercial viability of islanding operation must be assessed in relation to enhancement of power quality, system reliability and supply of potential ancillary services through network support. Demonstration projects under Registered Power Zone and Technical Architecture Projects should be initiated to investigate the utility of DG islanding. However these efforts should be compounded with a realistic judgement of the associated technical and economic issues for the development of future power networks beyond 2010.

S.P. Chowdhury; S. Chowdhury; P.A. Crossley

2011-01-01T23:59:59.000Z

185

Distributed Generation Study/Dakota Station (Minnegasco) | Open Energy  

Open Energy Info (EERE)

Station (Minnegasco) Station (Minnegasco) < Distributed Generation Study Jump to: navigation, search Study Location Burnsville, Minnesota Site Description Other Utility Study Type Case Study Technology Microturbine Prime Mover Capstone C30 Heat Recovery Systems Unifin Fuel Natural Gas System Installer Capstone Turbine Corp System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 30 kW0.03 MW 30,000 W 30,000,000 mW 3.0e-5 GW 3.0e-8 TW Nominal Voltage (V) 0 Heat Recovery Rating (BTU/hr) 290000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Customer Assembled Start Date 2000/03/13 Monitoring Termination Date 2002/03/31 Primary Power Application Based Load

186

Distributed Generation Study/Emerling Farm | Open Energy Information  

Open Energy Info (EERE)

Emerling Farm Emerling Farm < Distributed Generation Study Jump to: navigation, search Study Location Perry, New York Site Description Agricultural Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G379 Heat Recovery Systems Built-in Fuel Biogas System Installer RCM Digesters System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability Seamless Power Rating 200 kW0.2 MW 200,000 W 200,000,000 mW 2.0e-4 GW 2.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2000000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/06/07 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

187

Distributed Generation Study/Hudson Valley Community College | Open Energy  

Open Energy Info (EERE)

Valley Community College Valley Community College < Distributed Generation Study Jump to: navigation, search Study Location Troy, New York Site Description Institutional-School/University Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G3516, Caterpillar DM5498, Caterpillar DM7915 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Siemens Building Technologies System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 6 Stand-alone Capability Seamless Power Rating 7845 kW7.845 MW 7,845,000 W 7,845,000,000 mW 0.00785 GW 7.845e-6 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 32500000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Custom Made Component Integration Factory Integrated

188

Distributed Generation Study/Floyd Bennett | Open Energy Information  

Open Energy Info (EERE)

Bennett Bennett < Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Other Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Montreal Construction System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability Seamless Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 230000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2005/07/21 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

189

Distributed Generation Study/Arrow Linen | Open Energy Information  

Open Energy Info (EERE)

Study/Arrow Linen Study/Arrow Linen < Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Commercial-Other Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Coast Intelligen 150-IC with ECS Heat Recovery Systems Built-in Fuel Natural Gas System Installer Energy Concepts System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 300 kW0.3 MW 300,000 W 300,000,000 mW 3.0e-4 GW 3.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 3000000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2005/03/01 Monitoring Termination Date 1969/12/31

190

Distributed Generation Study/Wyoming County Community Hospital | Open  

Open Energy Info (EERE)

Wyoming County Community Hospital Wyoming County Community Hospital < Distributed Generation Study Jump to: navigation, search Study Location Warsaw, New York Site Description Institutional-Hospital/Health Care Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Waukesha VGF L36GSID Heat Recovery Systems Built-in Fuel Natural Gas System Installer Gerster Trane System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability Seamless Power Rating 560 kW0.56 MW 560,000 W 560,000,000 mW 5.6e-4 GW 5.6e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1000000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2001/09/26

191

Distributed Generation Study/Patterson Farms CHP System Using Renewable  

Open Energy Info (EERE)

Farms CHP System Using Renewable Farms CHP System Using Renewable Biogas < Distributed Generation Study Jump to: navigation, search Study Location Auburn, New York Site Description Agricultural Study Type Field Test Technology Internal Combustion Engine Prime Mover Caterpillar G379 Heat Recovery Systems Built-in Fuel Biogas System Installer Martin Machinery System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 200 kW0.2 MW 200,000 W 200,000,000 mW 2.0e-4 GW 2.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1366072 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Custom Made Component Integration Customer Assembled Start Date 2007/05/02 Monitoring Termination Date 2007/05/26

192

Distributed Generation Study/Tudor Gardens | Open Energy Information  

Open Energy Info (EERE)

Tudor Gardens Tudor Gardens < Distributed Generation Study Jump to: navigation, search Study Location New York, New York Site Description Residential-Multifamily-Single Building Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Tecogen CM-75 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Aegis Energy System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 150 kW0.15 MW 150,000 W 150,000,000 mW 1.5e-4 GW 1.5e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 980000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2005/07/01 Monitoring Termination Date 1969/12/31

193

Distributed Generation Study/Patterson Farms | Open Energy Information  

Open Energy Info (EERE)

Farms Farms < Distributed Generation Study Jump to: navigation, search Study Location Auburn, New York Site Description Agricultural Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G3508 Heat Recovery Systems Built-in Fuel Biogas System Installer RCM Digesters System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability Seamless Power Rating 180 kW0.18 MW 180,000 W 180,000,000 mW 1.8e-4 GW 1.8e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/03/10 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

194

Distributed Generation Study/Oakwood Health Care Center | Open Energy  

Open Energy Info (EERE)

Oakwood Health Care Center Oakwood Health Care Center < Distributed Generation Study Jump to: navigation, search Study Location Williamsville, New York Site Description Institutional-Hospital/Health Care Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Waukesha VGF 18GLD Heat Recovery Systems Built-in Fuel Natural Gas System Installer Gerster Trane System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability Seamless Power Rating 600 kW0.6 MW 600,000 W 600,000,000 mW 6.0e-4 GW 6.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2800000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2001/12/20 Monitoring Termination Date 2003/01/03

195

Distributed Generation Study/Matlink Farm | Open Energy Information  

Open Energy Info (EERE)

Matlink Farm Matlink Farm < Distributed Generation Study Jump to: navigation, search Study Location Clymers, New York Site Description Agricultural Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Waukesha 145 Heat Recovery Systems Built-in Fuel Biogas System Installer Martin Machine System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 145 kW0.145 MW 145,000 W 145,000,000 mW 1.45e-4 GW 1.45e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1500000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2004/10/28 Monitoring Termination Date 2005/07/16 Primary Power Application Based Load

196

Distributed Generation Study/VIP Country Club | Open Energy Information  

Open Energy Info (EERE)

VIP Country Club VIP Country Club < Distributed Generation Study Jump to: navigation, search Study Location New Rochelle, New York Site Description Commercial-Other Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Advanced Power Systems System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 3 Stand-alone Capability Seamless Power Rating 180 kW0.18 MW 180,000 W 180,000,000 mW 1.8e-4 GW 1.8e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 750000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/01/24 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

197

Distributed Generation Study/Waldbaums Supermarket | Open Energy  

Open Energy Info (EERE)

Waldbaums Supermarket Waldbaums Supermarket < Distributed Generation Study Jump to: navigation, search Study Location Hauppauge, New York Site Description Commercial-Supermarket Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Unifin HX Fuel Natural Gas System Installer CDH Energy Corp. System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 60 kW0.06 MW 60,000 W 60,000,000 mW 6.0e-5 GW 6.0e-8 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 500000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2002/08/02 Monitoring Termination Date 2006/07/21 Primary Power Application Based Load

198

SOLID OXIDE FUEL CELL HYBRID SYSTEM FOR DISTRIBUTED POWER GENERATION  

SciTech Connect

This report summarizes the work performed by Honeywell during the July 2001 to September 2001 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. An internal program kickoff was held at Honeywell in Torrance, CA. The program structure was outlined and the overall technical approach for the program was presented to the team members. Detail program schedules were developed and detailed objectives were defined. Initial work has begun on the system design and pressurized SOFC operation.

Unknown

2002-03-01T23:59:59.000Z

199

Advanced Distributed Generation LLC ADG | Open Energy Information  

Open Energy Info (EERE)

LLC ADG LLC ADG Jump to: navigation, search Name Advanced Distributed Generation LLC (ADG) Place Toledo, Ohio Zip OH 43607 Product ADG is a general contracting company specializing in the design and installation of photovoltaic (PV) systems. Coordinates 46.440613°, -122.847838° 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":46.440613,"lon":-122.847838,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

200

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

Solar Turbines Inc Olinda Generating Plant Marina Landfill GasSolar Turbines Inc Olinda Generating Plant Marina Landfill Gas

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

GENERATING SYNCHRONIZABLE TEST SEQUENCES BASED ON FINITE STATE MACHINE WITH DISTRIBUTED PORTS1  

E-Print Network (OSTI)

GENERATING SYNCHRONIZABLE TEST SEQUENCES BASED ON FINITE STATE MACHINE WITH DISTRIBUTED PORTS1 Gang with several distributed interfaces, called ports. A test generation method is developed for generating test generation and fault detectability. Several types of such interfaces have been standardized

von Bochmann, Gregor

202

Practical stability assessment of distributed synchronous generators under variations in the system equilibrium conditions  

Science Journals Connector (OSTI)

Abstract This paper proposes a method to assess the practical stability of power distribution systems with synchronous generators subject to changes in the system equilibrium conditions due to fast varying loads. The concept of practical stability deals with two known state-space regions ?1 (which contains all the initial conditions reflecting the perturbations at which the system is subject during its operation) and ?2 (which represents the operating security region of the power distribution system) satisfying ?1??2. The practical stability problem and the focus of this paper is to determine under which conditions the system trajectories will be confined into a security region of operation for a certain time interval of interest, as the equilibrium point of the model changes. This study was carried out using a mathematical model of the distribution system with synchronous generators in the form of a switched affine system. This proposed model is capable of describing the system behavior over a certain period within which changes on the equilibrium conditions of the system can occur. Sufficient conditions for the power distribution system with synchronous generators described as a switched affine system to be practically stable with respect to its operating security region ?2 are given in the form of matrix inequalities constraints. The results, obtained for the model of a cogeneration plant of 10MW added to a distribution network constituted by a feeder and six buses, show that the less stringent properties of the concept of practical stability can be very well-suited to the security analysis of power systems subjected to frequent variations in the load level.

Roman Kuiava; Rodrigo A. Ramos; Hemanshu R. Pota; Luis F.C. Alberto

2014-01-01T23:59:59.000Z

203

Multi-physics modeling of thermoelectric generators for waste...  

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

Multi-physics modeling of thermoelectric generators for waste heat recovery applications Multi-physics modeling of thermoelectric generators for waste heat recovery applications...

204

Demonstrating and Validating a Next Generation Model-Based Controller...  

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

and Validating a Next Generation Model-Based Controller for Fuel Efficient, Low Emissions Diesel Engines Demonstrating and Validating a Next Generation Model-Based Controller for...

205

GRR/Section 8-TX-c - Distributed Generation Interconnection | Open Energy  

Open Energy Info (EERE)

GRR/Section 8-TX-c - Distributed Generation Interconnection GRR/Section 8-TX-c - Distributed Generation Interconnection < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 8-TX-c - Distributed Generation Interconnection 8-TX-c - Distributed Generation Interconnection.pdf Click to View Fullscreen Contact Agencies Public Utility Commission of Texas Regulations & Policies PUCT Substantive Rule 25.211 PUCT Substantive Rule 25.212 Triggers None specified Click "Edit With Form" above to add content 8-TX-c - Distributed Generation Interconnection.pdf 8-TX-c - Distributed Generation Interconnection.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative This flowchart illustrates the process for distributed generation (DG)

206

Distributed Generation Investment by a Microgrid under Uncertainty  

E-Print Network (OSTI)

Cost of Natural Gas Generation, p Figure 6. Normalised NetCost of Natural Gas Generation, p Figure 7. Wait InvestCost of Natural Gas Generation (US$/kWh e ), C Figure 8.

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

207

Distributed Energy Resources Market Diffusion Model  

SciTech Connect

Distributed generation (DG) technologies, such as gas-fired reciprocating engines and microturbines, have been found to be economically beneficial in meeting commercial-sector electrical, heating, and cooling loads. Even though the electric-only efficiency of DG is lower than that offered by traditional central stations, combined heat and power (CHP) applications using recovered heat can make the overall system energy efficiency of distributed energy resources (DER) greater. From a policy perspective, however, it would be useful to have good estimates of penetration rates of DER under various economic and regulatory scenarios. In order to examine the extent to which DER systems may be adopted at a national level, we model the diffusion of DER in the US commercial building sector under different technical research and technology outreach scenarios. In this context, technology market diffusion is assumed to depend on the system's economic attractiveness and the developer's knowledge about the technology. The latter can be spread both by word-of-mouth and by public outreach programs. To account for regional differences in energy markets and climates, as well as the economic potential for different building types, optimal DER systems are found for several building types and regions. Technology diffusion is then predicted via two scenarios: a baseline scenario and a program scenario, in which more research improves DER performance and stronger technology outreach programs increase DER knowledge. The results depict a large and diverse market where both optimal installed capacity and profitability vary significantly across regions and building types. According to the technology diffusion model, the West region will take the lead in DER installations mainly due to high electricity prices, followed by a later adoption in the Northeast and Midwest regions. Since the DER market is in an early stage, both technology research and outreach programs have the potential to increase DER adoption, and thus, shift building energy consumption to a more efficient alternative.

Maribu, Karl Magnus; Firestone, Ryan; Marnay, Chris; Siddiqui,Afzal S.

2006-06-16T23:59:59.000Z

208

The Potential Benefits of Distributed Generation and the Rate-Related  

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

The Potential Benefits of Distributed Generation and the The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion. Report Pursuant to Section 1817 of the Energy Policy Act of 2005. The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion More Documents & Publications The potential benefits of distributed deneration and rate-related issues that may impede issues its expansion. June 2007 Notice of inquiry and request for Information - Study of the potential benefits of distributed generation: Federal Register Notice Volume 71, No.

209

Gas Distribution Modeling using Sparse Gaussian Process Mixture Models  

E-Print Network (OSTI)

Gas Distribution Modeling using Sparse Gaussian Process Mixture Models Cyrill Stachniss1 Christian-- In this paper, we consider the problem of learning a two dimensional spatial model of a gas distribution with a mobile robot. Building maps that can be used to accurately predict the gas concentration at query

Stachniss, Cyrill

210

Optimal planning of distributed generation systems in distribution system: A review  

Science Journals Connector (OSTI)

This paper attempts to present the state of art of research work carried out on the optimal planning of distributed generation (DG) systems under different aspects. There are number of important issues to be considered while carrying out studies related to the planning and operational aspects of DG. The planning of the electric system with the presence of DG requires the definition of several factors, such as: the best technology to be used, the number and the capacity of the units, the best location, the type of network connection, etc. The impact of DG in system operating characteristics, such as electric losses, voltage profile, stability and reliability needs to be appropriately evaluated. For that reason, the use of an optimization method capable of indicating the best solution for a given distribution network can be very useful for the system planning engineer, when dealing with the increase of DG penetration that is happening nowadays. The selection of the best places for installation and the preferable size of the DG units in large distribution systems is a complex combinatorial optimization problem. This paper aims at providing a review of the relevant aspects related to DG and its impact that DG might have on the operation of distributed networks. This paper covers the review of basics of DG, DG definition, current status of DG technologies, potential advantages and disadvantages, review for optimal placement of DG systems, optimizations techniques/methodologies used in optimal planning of DG in distribution systems. An attempt has been made to judge that which methodologies/techniques are suitable for optimal placement of DG systems based on the available literature and detail comparison(s) of each one.

Rajkumar Viral; D.K. Khatod

2012-01-01T23:59:59.000Z

211

Regional Distribution of the Locomotor Pattern-Generating Network in the Neonatal Rat Spinal Cord  

E-Print Network (OSTI)

Regional Distribution of the Locomotor Pattern-Generating Network in the Neonatal Rat Spinal Cord K/NMA, and was evidence of a distributed organization of unit generators inmonitored via hindlimb flexor (peroneal, Winnipeg, Manitoba R3E 0W3, Canada Cowley, K. C. and B. J. Schmidt. Regional distribution of the rhythmic

Manitoba, University of

212

Survey of Emissions Models for Distributed Combined Heat and...  

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

Survey of Emissions Models for Distributed Combined Heat and Power Systems, 2007 Survey of Emissions Models for Distributed Combined Heat and Power Systems, 2007 The models...

213

Modeling and Simulation Data Generation.pub  

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

Simulation Data Simulation Data Generation Oak Ridge National Laboratory managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract number DE-AC05-00OR22725 Research Areas Freight Flows Passenger Flows Supply Chain Efficiency Transportation: Energy Environment Safety Security Vehicle Technologies Research Brief A n ORNL team supported the Rapid Data Generation (RDG) Project from 2009 to 2012. This work was performed for the Joint Training Integration and Evaluation Center and the Modeling and Simulation Coordination Office. The objective of RDG is to reduce the resources required to produce, integrate, and correlate data, eliminate or reduce duplicative efforts, and promote data commonality for modeling and simulation (M&S) activities across the Department of

214

Spatial distribution of very low?frequency wind?generated noise in the ocean  

Science Journals Connector (OSTI)

We have adapted our model of surface?generated noise in a stratified lossy ocean to the case of low?frequency wind?generated noise produced in deep water by turbulentpressure fluctuations in the atmosphere. The model assumes a random pressure distribution at the surface and includes the effects of sound?speed profile and bottom characteristics. Using Wilson's source levels [J. H. Wilson J. Acoust. Soc. Am. 66 14991507 (1979)] we have calculated the noise level as functions of frequency and depth and compared the results with measured data. We show these results along with calculations of the spatial coherence function which differs significantly from the standard deep?water result. Finally we present calculations of the effective surface area that is the area of the surface centered above the receiver which contributes most of the noise intensity. We show that this quantity is dependent on receiver depth.

F. Ingenito; W. A. Kuperman

1980-01-01T23:59:59.000Z

215

Artificial Neural Network Based Approach for Anti-islanding Protection of Distributed Generators  

Science Journals Connector (OSTI)

The anti-islanding protection of synchronous generators is typically performed by voltage and frequency ... is possible to recognize existent patterns on the distributed generator voltage waveform, which makes po...

Victor Luiz Merlin

2014-06-01T23:59:59.000Z

216

Methods of calculating currents of induction, self-excited generators with two distributed windings  

Science Journals Connector (OSTI)

A simplified way of calculating the current frequency of induction self-excited generator with two distributed windings on the stator is suggested. It ... do not influence the current frequency of the generator; ...

S. I. Kitsis; D. N. Pautov

2009-04-01T23:59:59.000Z

217

Methodology The electricity generation and distribution network in the Western United States is  

E-Print Network (OSTI)

Methodology The electricity generation and distribution network in the Western United States is comprised of power plants, electric utilities, electrical transformers, transmission and distribution infrastructure, etc. We conceptualize the system as a transportation network with resources (electricity

Hall, Sharon J.

218

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.

219

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

220

Intelligent Power Management of a Hybrid Fuel Cell/Energy Storage Distributed Generator  

Science Journals Connector (OSTI)

This book chapter addresses the intelligent power management of a hybrid ( fuel cell/energy storage( distributed generator connected to a power grid. It presents...

Amin Hajizadeh; Ali Feliachi; Masoud Aliakbar Golkar

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

Fault response of inverter interfaced distributed generators in grid-connected applications  

Science Journals Connector (OSTI)

Abstract Inverter-interfaced distributed generation is prominent in some distribution networks because of the growth of PV and other new sources. In order to ensure that protection system design remains effective in this environment, it is essential to be able to accurately represent inverters in fault current calculations. Calculating the fault current contribution is complicated because of the nature of the transition into current limiting mode and because the current produced is a function of control choices as well as physical components. The desire is for a simple source plus impedance model for incorporation into network studies. Based on knowledge of the control strategy and the details of the method of current limiting, linear analytical equivalent models are proposed whose source and impedance values (at fundamental frequency) can be expressed as a function of the inverter's hardware parameters and controller gains. The dependence of the entry into current limit on the nature and location of other generators in the network leads to a proposal for a load flow based fault analysis incorporating the new models. This iteratively determines which inverter experiences current limiting. The proposed inverter fault models and their use in a network fault analysis have been verified against experimental results in a 3-inverter network.

Cornelis A. Plet; Timothy C. Green

2014-01-01T23:59:59.000Z

222

Flicker attenuation and transfer study for induction generator integrated into distribution network  

Science Journals Connector (OSTI)

Abstract Squirrel-cage induction generators (IGs) are widely used in distributed generation (DG). When the voltage at the point of common coupling is fluctuant, the embedded IG will show the impedance characteristic with dynamic changes under the different fluctuation frequencies. In addition, the drive train of IG set has great impact on the voltage flicker attenuation. This paper observes the dynamic response of IG to the voltage flicker through the experiments and further defines the flicker attenuation factor and transfer coefficient. A linearization model of IG with two-mass equivalent drive train is constructed through comparing the impacts of different drive trains (such as diesel engine, wind turbine) on the voltage flicker attenuation. Then an analytical method is proposed to determine the dynamic impedance, attenuation factor, transfer coefficient and flicker limit for IG integrated into distribution network. The correctness of the proposed method is verified by the experimental tests and the dynamic simulation using the detailed model of IG set. The parameters sensitivities of drive train and generator to the voltage flicker attenuation effect are analyzed and discussed in the paper.

Qianggang Wang; Niancheng Zhou; Jizhong Zhu; Wei Yan; Shu Pan

2014-01-01T23:59:59.000Z

223

Is The Distributed Generation Revolution Coming: A Federal Perspective  

Office of Environmental Management (EM)

generation and transmission construction and retirements, energy efficiency and demand response programs, regional system plans, and the implications of federal and state...

224

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

DG) and combined heat and power (CHP) applications matchedpower generation with combined heat and power applications,tax on microgrid combined heat and power adoption, Journal

Siddiqui, Afzal; Marnay, Chris

2006-01-01T23:59:59.000Z

225

Most Viewed Documents for Power Generation and Distribution:...  

Office of Scientific and Technical Information (OSTI)

Methods for Power Distribution Systems: Final Report Tom McDermott (2010) 34 Industrial Power Factor Analysis Guidebook. Electrotek Concepts. (1995) 29 Recovery of Water from...

226

Future of Distributed Generation and IEEE 1547 (Presentation)  

SciTech Connect

This presentation discusses the background on IEEE 1547, including its purpose, changes, new boundary issues and requirements, islanding issues, and how it impacts distributed wind.

Preus, R.

2014-06-01T23:59:59.000Z

227

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

228

A genetic algorithm approach to voltage-VAR control in systems with distributed generation  

Science Journals Connector (OSTI)

This paper presents a case study that highlights the influences which the connection of distributed generation sources may have over the solutions of reactive power compensation and voltage control already existing in a given network. The problem of ... Keywords: distributed generation, genetic algorithms, renewable sources, voltage-var control

Iulia Coroama; Mihai Gavrilas; Ovidiu Ivanov

2010-10-01T23:59:59.000Z

229

Bulk ACCVD Generation of SWNTs with Narrow Chirality Distribution Shigeo Maruyama1)  

E-Print Network (OSTI)

Bulk ACCVD Generation of SWNTs with Narrow Chirality Distribution Shigeo Maruyama1) , Yuhei-1, Sonoyama 1-chome, Otsu, Shiga 520-8558, Japan By scaling up the alcohol CCVD (ACCVD) generation technique to determine the chirality distribution of SWNTs, dispersed and centrifuged SWNTs in NaDDBS/D2O was examined

Maruyama, Shigeo

230

Generation of high-resolution surface temperature distributions Anton A. Darhuber and Sandra M. Troiana)  

E-Print Network (OSTI)

Generation of high-resolution surface temperature distributions Anton A. Darhuber and Sandra M have performed numerical calculations to study the generation of arbitrary temperature profiles with high spatial resolution on the surface of a solid. The characteristics of steady-state distributions

Troian, Sandra M.

231

Autonomous Control of Inverter-Interfaced Distributed Generation Units for Harmonic Current Filtering and  

E-Print Network (OSTI)

Autonomous Control of Inverter-Interfaced Distributed Generation Units for Harmonic Current-interfaced Distributed Generation (DG) units, which can autonomously share harmonic currents and resonance damping, such that harmonic resonances and voltage distortions can be damped. To autonomously share harmonic currents, a droop

Chen, Zhe

232

Distributed Private-Key Generators for Identity-Based Cryptography  

Science Journals Connector (OSTI)

An identity-based encryption (IBE) scheme can greatly reduce the complexity of sending encrypted messages. However, an IBE scheme necessarily requires a private-key generator (PKG), which can create private keys ...

Aniket Kate; Ian Goldberg

2010-01-01T23:59:59.000Z

233

Distributed Generation Investment by a Microgrid under Uncertainty  

E-Print Network (OSTI)

power generation with combined heat and power applications.tax on microgrid combined heat and power adoption. JournalCHP Application Center. Combined heat and power in a dairy.

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

234

Distributed Online Learning of Central Pattern Generators in Modular Robots  

Science Journals Connector (OSTI)

In this paper we study distributed online learning of locomotion gaits for modular robots. The learning is based on a stochastic approximation method, SPSA, which optimizes the parameters of coupled oscillator...

David Johan Christensen; Alexander Sprwitz

2010-01-01T23:59:59.000Z

235

TOWARDS COMPUTER-AIDED MODEL GENERATION Keynote presentation at the  

E-Print Network (OSTI)

modeling process. Model Generation is a new modeling paradigm for rapid computer- aided model generation Phenomena-oriented modeling is a research initiative for the computer-aided support and partial automation of simulation environments, methodologies for the computer-aided support of the modeling activity itself have

Linninger, Andreas A.

236

A new HBMO algorithm for multiobjective daily Volt/Var control in distribution systems considering Distributed Generators  

Science Journals Connector (OSTI)

In recent years, Distributed Generators (DGs) connected to the distribution network have received increasing attention. The connection of enormous \\{DGs\\} into existing distribution network changes the operation of distribution systems. Because of the small X/R ratio and radial structure of distribution systems, \\{DGs\\} affect the daily Volt/Var control. This paper presents a new algorithm for multiobjective daily Volt/Var control in distribution systems including Distributed Generators (DGs). The objectives are costs of energy generation by \\{DGs\\} and distribution companies, electrical energy losses and the voltage deviations for the next day. A new optimization algorithm based on a Chaotic Improved Honey Bee Mating Optimization (CIHBMO) is proposed to determine the active power values of DGs, reactive power values of capacitors and tap positions of transformers for the next day. Since objectives are not the same, a fuzzy system is used to calculate the best solution. The plausibility of the proposed algorithm is demonstrated and its performance is compared with other methods on a 69-bus distribution feeder. Simulation results illustrate that the proposed algorithm has better outperforms the other algorithms.

Taher Niknam

2011-01-01T23:59:59.000Z

237

Crowd modeling: generation of a fully articulated crowd of characters  

E-Print Network (OSTI)

In this thesis I present a fast, efficient, and production friendly method to generate a crowd of fully articulated characters. A wide variety of characters can be created from a relatively few base models. The models that are generated...

Swaminathan, Karthik

2006-04-12T23:59:59.000Z

238

hal-00015991,version2-14Nov2006 Gibbs distributions for random partitions generated by a  

E-Print Network (OSTI)

hal-00015991,version2-14Nov2006 Gibbs distributions for random partitions generated) distribution is obtained by sampling uniformly among such partitions with k clusters. We provide conditions has the Gibbs (n, k, w) distribution, so the partition is subject to irreversible fragmentation

Paris-Sud XI, Université de

239

Multivariate distributed ensemble generator: A new scheme for ensemble radar precipitation estimation over temperate maritime climate  

Science Journals Connector (OSTI)

Summary It is broadly recognized that large uncertainties are associated with radar rainfall (RR) estimates, which could propagate in the hydrologic forecast system and contaminate its final outcomes. Ensemble generation of probable true rainfall is an elegant and practical solution to characterize the uncertainty of RR estimates and behavior in the hydrologic forecast system. In this study, we have proposed a fully formulated uncertainty model that can statistically quantify the characteristics of the RR errors and their spatial and temporal structure, which is a novel method of its kind in the radar data uncertainty field. The error model is established based on the distribution of gauge rainfall conditioned on radar rainfall (GR|RR). Its spatial and temporal dependencies are simulated based on the t-copula function. With this proposed error model, a Multivariate Distributed Ensemble Generator (MDEG) driven by the copula and autoregressive filter is designed and applied in the Brue catchment (135km2), an extensively gauged site in the United Kingdom. The products from MDEG include a time series of ensemble rainfall fields with each of them representing a probable true rainfall. A series of tests show that the ensemble fields generated by MDEG have realistically maintained the spatial and temporal structure of the random error in RR as they have relatively low mean absolute errors (MAEs) of spatio-temporal correlation towards the observed ones. In addition, the results show that the simulated uncertainty bands derived by the 500 realizations of ensemble rainfall encompass most of the reference rain gauge measurements, indicating that the proposed scheme is statistically reliable.

Qiang Dai; Dawei Han; Miguel Rico-Ramirez; Prashant K. Srivastava

2014-01-01T23:59:59.000Z

240

Aircraft AC Generators: Hybrid System Modeling and Simulation  

E-Print Network (OSTI)

1 Aircraft AC Generators: Hybrid System Modeling and Simulation Ashraf Tantawy, Student Member--Integrated Drive Generators (IDGs) are the main source of electrical power for a number of critical systems is a difficult task. dq0 models have been developed for design and control of generators, but these models

Koutsoukos, Xenofon D.

Note: This page contains sample records for the topic "modeling distributed generation" 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

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

242

Distributed Generation versus Centralised Supply: a Social Cost-Benefit Analysis  

E-Print Network (OSTI)

, regulators and legislators in distributed generation (DG), namely, the integrated or stand-alone use of small, modular power generation close to the point of consumption as an alternative to large power generation and electricity transport over long distances... condensing boiler providing heat for space heating and sanitary uses (hot water). A conventional compressing refrigerator supplies cold for air conditioning. Imported electricity is assumed to be generated by a combined cycle-gas turbine plant (CCGT), with 51...

Gulli, Francesco

2004-06-16T23:59:59.000Z

243

Distributed Generation and Renewable Energy in the Electric Cooperative Sector  

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

Generation and Generation and Renewable Energy in the Electric Cooperative Sector Ed Torrero Cooperative Research Network (CRN) National Rural Electric Cooperative Association September 22, 2004 Co-op Basics  Customer owned  Serve 35 million people in 47 states  75 percent of nation's area  2.3 million miles of line is close to half of nation's total  Growth rate twice that of IOU Electrics  Six customers per line-mile vs 33 for IOU  Co-ops view DP as a needed solution; not as a "problem" Broad Range of Technologies Chugach EA 1-MW Fuel Cell Installation Post Office in Anchorage, AK Chugach EA Microturbine Demo Unit at Alaska Village Electric Co-op CRN Transportable 200kW Fuel Cell at Delta- Montrose EA in Durango, CO Plug Power Fuel Cell at Fort Jackson, SC

244

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

E-Print Network (OSTI)

Modeling with Combined Heat and Power Applications,Committee, Combined Heat and Power Workshop, CaliforniaJuly 23, 2009 Combined Heat and Power Installation

Stadler, Michael

2010-01-01T23:59:59.000Z

245

Integrated operation of electric vehicles and renewable generation in a smart distribution system  

Science Journals Connector (OSTI)

Abstract Distribution system complexity is increasing mainly due to technological innovation, renewable Distributed Generation (DG) and responsive loads. This complexity makes difficult the monitoring, control and operation of distribution networks for Distribution System Operators (DSOs). In order to cope with this complexity, a novel method for the integrated operational planning of a distribution system is presented in this paper. The method introduces the figure of the aggregator, conceived as an intermediate agent between end-users and DSOs. In the proposed method, energy and reserve scheduling is carried out by both aggregators and DSO. Moreover, Electric Vehicles (EVs) are considered as responsive loads that can participate in ancillary service programs by providing reserve to the system. The efficiency of the proposed method is evaluated on an 84-bus distribution test system. Simulation results show that the integrated scheduling of \\{EVs\\} and renewable generators can mitigate the negative effects related to the uncertainty of renewable generation.

Alireza Zakariazadeh; Shahram Jadid; Pierluigi Siano

2015-01-01T23:59:59.000Z

246

An explicit method for decoupled distributed solvers in an equation-based modelling language  

Science Journals Connector (OSTI)

The Modelica language offers an intuitive way to create object-oriented models. This makes it natural also to use an object-oriented solver, where each sub-model solves its own equations. Doing so is possible only if sub-models can be made independent ... Keywords: Modelica, distributed solvers, model generation, transmission line element method

Robert Braun, Petter Krus

2014-10-01T23:59:59.000Z

247

Generation and Transmission Maximization Model | Open Energy Information  

Open Energy Info (EERE)

Generation and Transmission Maximization Model Generation and Transmission Maximization Model Jump to: navigation, search Tool Summary Name: Generation and Transmission Maximization Model Agency/Company /Organization: Argonne National Laboratory Sector: Energy Topics: Pathways analysis Resource Type: Software/modeling tools User Interface: Desktop Application Website: www.dis.anl.gov/projects/Gtmax.html Cost: Paid Generation and Transmission Maximization Model Screenshot References: Generation and Transmission Maximization Model [1] Logo: Generation and Transmission Maximization Model The GTMax model helps researchers study complex marketing and system operational issues. With the aid of this comprehensive model, utility operators and managers can maximize the value of the electric system, taking into account not only its limited energy and transmission resources,

248

PhotoVoltaic distributed generation for Lanai power grid real-time simulation and control integration scenario.  

SciTech Connect

This paper discusses the modeling, analysis, and testing in a real-time simulation environment of the Lanai power grid system for the integration and control of PhotoVoltaic (PV) distributed generation. The Lanai Island in Hawaii is part of the Hawaii Clean Energy Initiative (HCEI) to transition to 30% renewable green energy penetration by 2030. In Lanai the primary loads come from two Castle and Cook Resorts, in addition to residential needs. The total peak load profile is 12470 V, 5.5 MW. Currently there are several diesel generators that meet these loading requirements. As part of the HCEI, Lanai has initially installed 1.2 MW of PV generation. The goal of this study has been to evaluate the impact of the PV with respect to the conventional carbon-based diesel generation in real time simulation. For intermittent PV distributed generation, the overall stability and transient responses are investigated. A simple Lanai 'like' model has been developed in the Matlab/Simulink environment (see Fig. 1) and to accommodate real-time simulation of the hybrid power grid system the Opal-RT Technologies RT-Lab environment is used. The diesel generators have been modelled using the SimPowerSystems toolbox swing equations and a custom Simulink module has been developed for the High level PV generation. All of the loads have been characterized primarily as distribution lines with series resistive load banks with one VAR load bank. Three-phase faults are implemented for each bus. Both conventional and advanced control architectures will be used to evaluate the integration of the PV onto the current power grid system. The baseline numerical results include the stable performance of the power grid during varying cloud cover (PV generation ramping up/down) scenarios. The importance of assessing the real-time scenario is included.

Robinett, Rush D., III; Kukolich, Keith (Opal RT Technologies, Montreal, Quebec, Canada); Wilson, David Gerald; Schenkman, Benjamin L.

2010-06-01T23:59:59.000Z

249

Modeling generation and characterization of attosecond pulses  

E-Print Network (OSTI)

Generation of high-order harmonics has emerged as a powerful technique for the generation of broadband coherent radiation in the EUV regime. This has lead to the development of table-top EUV sources that can produce ...

Bhardwaj, Siddharth

2014-01-01T23:59:59.000Z

250

A new approach based on ant colony optimization for daily Volt/Var control in distribution networks considering distributed generators  

Science Journals Connector (OSTI)

This paper presents a new approach to daily Volt/Var control in distribution systems with regard to distributed generators (DGs). Due to the small X/R ratio and radial configuration of distribution systems, \\{DGs\\} have much impact on this problem. A cost-based compensation methodology is proposed as a proper signal to encourage owners of \\{DGs\\} in active and reactive power generation. An evolutionary method based on ant colony optimization (ACO) is used to determine the active and reactive power values of DGs, reactive power values of capacitors and tap positions of transformers for the next day. The results indicate that the proposed encouraging factor has improved the performance of distribution networks on a large scale.

Taher Niknam

2008-01-01T23:59:59.000Z

251

Solar Valuation and the Modern Utility's Expansion into Distributed Generation  

Science Journals Connector (OSTI)

Residential solar's diffusion across the U.S. power grid is inspiring concern in the utility industry. Of particular debate have been net energy metering policies (NEM), which engender revenue losses and lead to cross-subsidization of solar customers by non-solar customers. An emerging alternative to NEM is the value of solar tariff (VOST), which is designed to pay residential solar generation based on a more nuanced benefit-cost analysis to determine the actual value of residential solar to utility operations.

Griselda Blackburn; Clare Magee; Varun Rai

2014-01-01T23:59:59.000Z

252

Novel Control of PV Solar and Wind Farm Inverters as STATCOM for Increasing Connectivity of Distributed Generators.  

E-Print Network (OSTI)

??The integration of distributed generators (DGs) such as wind farms and PV solar farms in distribution networks is getting severely constrained due to problems of (more)

AC, Mahendra

2013-01-01T23:59:59.000Z

253

Shared memory optimizations for distributed memory programming models  

Science Journals Connector (OSTI)

In the world of parallel programming, there are two major classes of programming models: shared memory and distributed memory. Shared memory models share all memory by default, and are most effective on multi-processor systems. Distributed memory models ...

Andrew Friedley / Andrew Lumsdaine

2013-01-01T23:59:59.000Z

254

Phonon distribution in a model polariton system  

Science Journals Connector (OSTI)

We consider a simple model polariton problem and show that the phonons in this system will never exhibit sub-Poissonian statistics. We furthermore observe that the probability distribution of the phonons will be classical at all temperatures, although the polariton complex as a whole can have a nonclassical behavior below a threshold temperature whose value will depend on the photon-phonon coupling strength.

Sharmishtha Ghoshal and Ashok Chatterjee

1995-07-01T23:59:59.000Z

255

Synthesis of Droop-Based Distributed Generators in a Micro Grid System  

Science Journals Connector (OSTI)

Distributed Generation (DG) systems are being increasingly favored for meeting the ever-growing demands of electrical energy and smart grids. Todays DG technologies include energy sources such as conventional...

Mahesh S. Illindala

2012-01-01T23:59:59.000Z

256

Husimi distribution function and one-dimensional Ising model  

E-Print Network (OSTI)

Husimi distribution function for the one-dimensional Ising model is obtained. One-point and joint distribution functions are calculated and their thermal behaviour are discussed.

F. Kheirandish

2005-12-24T23:59:59.000Z

257

Electrical Model Development and Validation for Distributed Resources  

SciTech Connect

This project focuses on the development of electrical models for small (1-MW) distributed resources at the National Renewable Energy Laboratory's Distributed Energy Resources Test Facility.

Simoes, M. G.; Palle, B.; Chakraborty, S.; Uriarte, C.

2007-04-01T23:59:59.000Z

258

Generating multipartite entangled states of qubits distributed in different cavities  

E-Print Network (OSTI)

Cavity-based large-scale quantum information processing (QIP) needs a large number of qubits and placing all of them in a single cavity quickly runs into many fundamental and practical problems such as the increase of cavity decay rate and decrease of qubit-cavity coupling strength. Therefore, future QIP most likely will require quantum networks consisting of a large number of cavities, each hosting and coupled to multiple qubits. In this work, we propose a way to prepare a $W$-class entangled state of spatially-separated multiple qubits in different cavities, which are connected to a coupler qubit. Because no cavity photon is excited, decoherence caused by the cavity decay is greatly suppressed during the entanglement preparation. This proposal needs only one coupler qubit and one operational step, and does not require using a classical pulse, so that the engineering complexity is much reduced and the operation is greatly simplified. As an example of the experimental implementation, we further give a numerical analysis, which shows that high-fidelity generation of the $W$ state using three superconducting phase qubits each embedded in a one-dimensional transmission line resonator is feasible within the present circuit QED technique. The proposal is quite general and can be applied to accomplish the same task with other types of qubits such as superconducting flux qubits, charge qubits, quantum dots, nitrogen-vacancy centers and atoms.

Xiao-Ling He; Qi-Ping Su; Feng-Yang Zhang; Chui-Ping Yang

2014-10-12T23:59:59.000Z

259

A distributed data storage and processing framework for next-generation residential distribution systems  

Science Journals Connector (OSTI)

Abstract As the number of smart meters/sensors increases to more than hundreds of thousands, it is rather intuitive that the state-of-the-art centralized information processing architecture will no longer be sustainable under such a big data explosion. Hence, an innovative data management system is urgently needed to facilitate the real-world deployment of a future residential distribution system. In this paper, we investigate a radically different approach through distributed software agents to translate the legacy centralized data storage and processing scheme to a completely distributed cyber-physical architecture. We further substantiate the proposed distributed data storage and processing framework on a proof-of-concept testbed using a cluster of low-cost and credit-card-sized single-board computers. Finally, we evaluate the proposed distributed framework and proof-of-concept testbed with a comprehensive set of performance measures.

Ni Zhang; Yu Yan; Shengyao Xu; Wencong Su

2014-01-01T23:59:59.000Z

260

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

Note: This page contains sample records for the topic "modeling distributed generation" 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

Assessment of the Distributed Generation Market Potential for Solid Oxide Fuel Cells  

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

the Distributed the Distributed Generation Market Potential for Solid Oxide Fuel Cells September 29, 2013 DOE/NETL- 342/093013 NETL Contact: Katrina Krulla Analysis Team: Arun Iyengar, Dale Keairns, Dick Newby Contributors: Walter Shelton, Travish Shulltz, Shailesh Vora OFFICE OF FOSSIL ENERGY Table of Contents Executive Summary .........................................................................................................................1 1 Introduction ...................................................................................................................................2 2 DG Market Opportunity ................................................................................................................3 3 SOFC Technology Development Plan ..........................................................................................6

262

A 10.9 GS/s, 64 Taps Distributed Waveform Generator with DAC-Assisted Current-Steering Pulse Generators in  

E-Print Network (OSTI)

A 10.9 GS/s, 64 Taps Distributed Waveform Generator with DAC-Assisted Current-Steering Pulse Generators in ¢¡¤£¦¥¨§© Digital CMOS Yunliang Zhu , Jonathan D. Zuegel , John R. Marciante , and Hui Wu, Email:hwu@ece.rochester.edu Abstract-- A distributed waveform generator (DWG) with DAC-assisted pulse

Wu, Hui

263

Towards modelling and design of magnetostrictive electric generators  

Science Journals Connector (OSTI)

The paper deals with application of giant magnetostrictive materials for power harvesting from vibration. Mathematical modelling and design of magnetostrictive electric generators (MEG) are considered. The mathematical model, original MEG and test rig ... Keywords: Electric generator, Magnetostriction, Modelling, Power harvesting, Terfenol-D, Vibration, Villari effect

Viktor Berbyuk; Jayesh Sodhani

2008-02-01T23:59:59.000Z

264

Automatic Digital Surface Model (DSM) Generation from Linear Array Images  

E-Print Network (OSTI)

Automatic Digital Surface Model (DSM) Generation from Linear Array Images A dissertation submitted-examiner Presented by Li Zhang Zurich 2005 #12;IGP Mitteilungen Nr. 88 Automatic Digital Surface Model (DSM-906467-55-4 #12;DISS. ETH NO. 16078 Automatic Digital Surface Model (DSM) Generation from Linear Array Images

Giger, Christine

265

Modeling of the electron distribution based on bremsstrahlung emission during lower hybrid current drive on PLT  

SciTech Connect

Lower hybrid current drive requires the generation of a high energy electron tail anisotropic in velocity. Measurements of bremsstrahlung emission produced by this tail are compared with the calculated emission from reasonable model distributions. The physical basis and the sensitivity of this modeling process are described and the plasma properties of current driven discharges which can be derived from the model are discussed.

Stevens, J.E.; von Goeler, S.; Bernabei, S.; Bitter, M.; Chu, T.K.; Efthimion, P.; Fisch, N.; Hooke, W.; Hosea, J.; Jobes, F.

1985-03-01T23:59:59.000Z

266

Performance Enhancement of Radial Distributed System with Distributed Generators by Reconfiguration Using Binary Firefly Algorithm  

Science Journals Connector (OSTI)

The extent of real power loss and voltage deviation associated with overloaded feeders in radial distribution system can be reduced by reconfiguration. Reconfiguration is normally achieved by changing the open/cl...

N. Rajalakshmi; D. Padma Subramanian

2014-08-01T23:59:59.000Z

267

Performance Analysis of Positive-feedback-based Active Anti-islanding Schemes for Inverter-Based Distributed Generators  

SciTech Connect

Recently proposed positive-feedback-based anti-islanding schemes (AI) are highly effective in preventing islanding without causing any degradation in power quality. This paper aims to analyze the performance of these schemes quantitatively in the context of the dynamic models of inverter-based distributed generators (DG). In this study, the characteristics of these active anti-islanding methods are discussed and design guidelines are derived.

Du, Pengwei; Aponte, Erick E.; Nelson, J. Keith

2010-06-14T23:59:59.000Z

268

Generation of certifiably correct programs from formal models Alexei Iliasov  

E-Print Network (OSTI)

Generation of certifiably correct programs from formal models Alexei Iliasov Newcastle University techniques helps to deliver systems that are free from engineer- ing defects. A code generator quickly, consistently and reproducibly. Com- monly, a code generator is a program constructed informally

Southampton, University of

269

Generating Counterexamples for Structural Inductions by Exploiting Nonstandard Models  

E-Print Network (OSTI)

Generating Counterexamples for Structural Inductions by Exploiting Nonstandard Models Jasmin 2 Dept. of CSE, Chalmers University of Technology, Gothenburg, Sweden Abstract. Induction proofs the theorem or prove auxiliary properties before performing the induction step. (Counter)model finders

Cengarle, María Victoria

270

Evaluation of distributed building thermal energy storage in conjunction with wind and solar electric power generation  

Science Journals Connector (OSTI)

Abstract Energy storage is often seen as necessary for the electric utility systems with large amounts of solar or wind power generation to compensate for the inability to schedule these facilities to match power demand. This study looks at the potential to use building thermal energy storage as a load shifting technology rather than traditional electric energy storage. Analyses are conducted using hourly electric load, temperature, wind speed, and solar radiation data for a 5-state central U.S. region in conjunction with simple computer simulations and economic models to evaluate the economic benefit of distributed building thermal energy storage (TES). The value of the TES is investigated as wind and solar power generation penetration increases. In addition, building side and smart grid enabled utility side storage management strategies are explored and compared. For a relative point of comparison, batteries are simulated and compared to TES. It is found that cooling TES value remains approximately constant as wind penetration increases, but generally decreases with increasing solar penetration. It is also clearly shown that the storage management strategy is vitally important to the economic value of TES; utility side operating methods perform with at least 75% greater value as compared to building side management strategies. In addition, TES compares fairly well against batteries, obtaining nearly 90% of the battery value in the base case; this result is significant considering TES can only impact building thermal loads, whereas batteries can impact any electrical load. Surprisingly, the value of energy storage does not increase substantially with increased wind and solar penetration and in some cases it decreases. This result is true for both TES and batteries and suggests that the tie between load shifting energy storage and renewable electric power generation may not be nearly as strong as typically thought.

Byron W. Jones; Robert Powell

2015-01-01T23:59:59.000Z

271

Laying the Groundwork: Lessons Learned from the Telecommunications Industry for Distributed Generation; Preprint  

SciTech Connect

The telecommunications industry went through growing pains in the past that hold some interesting lessons for the growing distributed generation (DG) industry. The technology shifts and stakeholders involved with the historic market transformation of the telecommunications sector mirror similar factors involved in distributed generation today. An examination of these factors may inform best practices when approaching the conduits necessary to accelerate the shifting of our nation's energy system to cleaner forms of generation and use. From a technical perspective, the telecom industry in the 1990s saw a shift from highly centralized systems that had no capacity for adaptation to highly adaptive, distributed network systems. From a management perspective, the industry shifted from small, private-company structures to big, capital-intensive corporations. This presentation will explore potential correlation and outline the lessons that we can take away from this comparison.

Wise, A. L.

2008-05-01T23:59:59.000Z

272

TVA generating unit modeling using MATLAB  

Science Journals Connector (OSTI)

Abstract In the present paper, the numerical evaluation of Markov model transient behavior is considered. It is focused on finding the transient-state probabilities of well-known four Tennessee Valley Authority (TVA) models. Three computational approaches are examined to find the three transient probabilities after modeling. These approaches are the Laplace Transforms, curve fitting and Neuro-Fuzzy. The MATLAB Simulink 7.10 package is used to obtain the transient state-probabilities for the four TVA models and at the same interval of time these solutions are reproduced by Laplace Transforms. For each model the three-state probabilities of the TVA models are derived. Each model is considered as a 3-state model, where its equations are obtained using the curve fitting and Neuro-Fuzzy techniques. All techniques used and applied in the present study are used to formulate and obtain the TVA models, where the Laplace Transforms is re-derived and re-used for a double check to model and obtain the results.

Mohamed Y. Al-Hamad; Isa S. Qamber

2014-01-01T23:59:59.000Z

273

Cost reduction of distribution network protection in presence of distributed generation using optimized fault current limiter allocation  

Science Journals Connector (OSTI)

Using Solid State Fault Current Limiters (SSFCLs) has been proposed as a potential cost-efficient candidate to minimize the effect of exposing Distributed Generation (DG) to the distribution system. Genetic Algorithm (GA) is employed to find the optimum number, location and size of \\{FCLs\\} to be used in the network. The numerical and simulation results show the efficiency of proposed GA-based FCL allocation and sizing method in terms of minimizing the cost of distribution protection system. The prices of \\{FCLs\\} are estimated using real market prices and simulations are performed in four cases assuming prices more than the estimated one, less than estimated price and equal to the real estimated cost for FCL. Numerical results show that FCL price highly affects the optimum choices for \\{FCLs\\} and the price imposed by using FCLs.

Sayyed Ali Akbar Shahriari; Ali Yazdian Varjani; Mahmood Reza Haghifam

2012-01-01T23:59:59.000Z

274

Application of TOPNET in the distributed model intercomparison project  

E-Print Network (OSTI)

Application of TOPNET in the distributed model intercomparison project Christina Bandaragodaa of the Distributed Model Intercomparison Project (DMIP). The model implementation is based on a topographically network is mapped from the US National Elevation Dataset Digital Elevation Model (DEM) using procedures

Tarboton, David

275

Statistical Models for Next Generation Sequencing Data  

E-Print Network (OSTI)

prior indexed by distances from Gene Ontology (GO). The use of the external biological information yields improvements in statistical power over the original Bayesian discovery procedure. The third model addresses the problem of identifying protein...

Wang, Yiyi

2013-04-01T23:59:59.000Z

276

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

277

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

278

Conduction Models Of The Temperature Distribution In The East Rift Zone Of  

Open Energy Info (EERE)

Conduction Models Of The Temperature Distribution In The East Rift Zone Of Conduction Models Of The Temperature Distribution In The East Rift Zone Of Kilauea Volcano Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Conduction Models Of The Temperature Distribution In The East Rift Zone Of Kilauea Volcano Details Activities (2) Areas (1) Regions (0) Abstract: Temperature variations in the 1966-meter Hawaii Geothermal Project well HGP-A are simulated by model studies using a finite element code for conductive heat flow. Three models were generated: a constant temperature source from a vertical dike; a constant heat-generating magma chamber; and a transient heat source from a tapered vertical dike. Fair correlation is obtained between the HGP-A well temperature and the tapered dike 125 years after it is injected with an initial (transient) 1200°C

279

transmission april may 2003 re-gen56 Privately-owned distributed generation  

E-Print Network (OSTI)

transmission grid to Distributed renewable energy systems, such as mini- hydro, can significantly affect, including mini-hydro. Mini- hydro resources are commonly found in areas with low population and load new techniques that could facilitate a greater capacity of mini- hydro generation. The first allows

Harrison, Gareth

280

Apply: Small Business Funding Opportunity for Lighting, Integrated Storage, and Distributed Generation  

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

Closed Application Deadline: February 3, 2015 The Small Business Innovation Research program has announced its FY 2015 Phase 1 Release 2 topics, which include buildings-related topics: energy efficient solid-state lighting luminaires, products, and systems; and integrated storage and distributed generation for buildings.

Note: This page contains sample records for the topic "modeling distributed generation" 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

Fuel Cell Generation in Geo-Distributed Cloud Services: A Quantitative Study  

E-Print Network (OSTI)

Fuel Cell Generation in Geo-Distributed Cloud Services: A Quantitative Study Zhi Zhou1 Fangming Liu of fuel cell energy in cloud computing, yet it is unclear what and how much benefit it may bring. This paper, for the first time, attempts to quantitatively examine the benefits brought by fuel cell

Li, Baochun

282

Distributed Generation Potential of the U.S. CommercialSector  

SciTech Connect

Small-scale (100 kW-5 MW) on-site distributed generation (DG) economically driven by combined heat and power (CHP) applications and, in some cases, reliability concerns will likely emerge as a common feature of commercial building energy systems in developed countries over the next two decades. In the U.S., private and public expectations for this technology are heavily influenced by forecasts published by the Energy Information Administration (EIA), most notably the Annual Energy Outlook (AEO). EIA's forecasts are typically made using the National Energy Modeling System (NEMS), which has a forecasting module that predicts the penetration of several possible commercial building DG technologies over the period 2005-2025. Annual penetration is forecast by estimating the payback period for each technology, for each of a limited number of representative building types, for each of nine regions. This process results in an AEO2004 forecast deployment of about a total 3 GW of DG electrical generating capacity by 2025, which is only 0.25 percent of total forecast U.S. capacity. Analyses conducted using both the AEO2003 and AEO2004 versions of NEMS changes the baseline costs and performance characteristics of DG to reflect a world without U.S. Department of Energy (DOE) research into several thermal DG technologies, which is then compared to a case with enhanced technology representative of the successful achievement of DOE research goals. The net difference in 2025 DG penetration is dramatic using the AEO2003 version of NEMS, but much smaller in the AEO2004 version. The significance and validity of these contradictory results are discussed, and possibilities for improving estimates of commercial U.S. DG potential are explored.

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Gumerman,Etan; Marnay, Chris

2005-06-01T23:59:59.000Z

283

Statistics for PV, wind and biomass generators and their impact on distribution grid planning  

Science Journals Connector (OSTI)

The integration of renewable energy generation leads to major challenges for distribution grid operators. When the feed-in of photovoltaic (PV), biomass and wind generators exceed significantly the local consumption, large investments are needed. To improve the knowledge on the interaction between these technologies, statistical information for load curves, correlation coefficients and general feed-in behavior is derived. These derivations are based on measured data of different generators in a German distribution area. In this paper, we give new insights useful for the dimensioning of grid structures and assets. Furthermore, an approach is presented which allows the calculation of the maximum and minimum feed-in resulting from different combinations of the considered technologies.

Stefan Nykamp; Albert Molderink; Johann L. Hurink; Gerald J.M. Smit

2012-01-01T23:59:59.000Z

284

Thermal building simulation and computer generation of nodal models  

E-Print Network (OSTI)

Thermal building simulation and computer generation of nodal models H. BOYER, J.P. CHABRIAT, B exchanges and finally in the constitution of thermal state models of the building. Big variations existing from one building to another, it's necessary to build the thermal model from the building description

Paris-Sud XI, Université de

285

Toward optimized code generation through model-based optimization  

E-Print Network (OSTI)

Toward optimized code generation through model- based optimization Asma Charfi, Chokri Mraidha with in RTES development is linked to the optimization of their software part. Although automatic code generation and the use of optimizing compilers bring some answers to application optimization issue, we

Paris-Sud XI, Université de

286

A generative model for activations in functional MRI  

E-Print Network (OSTI)

Detection of brain activity and selectivity using functional magnetic resonance imaging (fMRI) provides unique insight into the underlying functional properties of the brain. We propose a generative model that jointly ...

Sridharan, Ramesh

2011-01-01T23:59:59.000Z

287

SECOND GENERATION REFORMS IN CHILE, POWER EXCHANGE MODEL. THE SOLUTION?  

E-Print Network (OSTI)

SECOND GENERATION REFORMS IN CHILE, POWER EXCHANGE MODEL. THE SOLUTION? David Watts Paulo Atienza to participate. Chile was the pioneer introducing this kind of reforms, through the application of a centralized

Catholic University of Chile (Universidad Católica de Chile)

288

Modeling of leachate generation in municipal solid waste landfills  

E-Print Network (OSTI)

parameters specified by the user. Ultimately, this model will strive to replace the time the user requires to generate and fill a given landfill geometry with time spent running and evaluating trials to yield the best design....

Beck, James Bryan

2012-06-07T23:59:59.000Z

289

Distributed Energy Resources Market Diffusion Model  

E-Print Network (OSTI)

power generation with combined heat and power applications."central stations, combined heat and power (CHP) applicationsgeneration and combined heat and power (CHP) technologies,

Maribu, Karl Magnus; Firestone, Ryan; Marnay, Chris; Siddiqui, Afzal S.

2006-01-01T23:59:59.000Z

290

Distributed voltage control strategy for LV networks with inverter-interfaced generators  

Science Journals Connector (OSTI)

Abstract Low voltage distribution networks are characterized by an ever growing diffusion of single and three phase distributed generators whose unregulated operation may deplete the power quality levels, in particular as regard voltage profiles and unbalances. This issue is at present under discussion by several national and international standardization bodies and the general trend is to require, for the new connections of generators to medium and low voltage grids, their participation to the reactive power network management. In this paper a novel strategy proposes to control the network voltage unbalance suitably for coordinating single and three-phase inverter interfaced embedded generators, concurrently with a local volt/var regulation action as foreseen by the new grid connection requirements. Simulations conducted on case study network representing a typical Italian 4-wire LV distribution system under different load/generation conditions, demonstrate that the coordinated action of single-phase and three-phase inverters may considerably reduce the degree of unbalance thus improving the network power quality levels.

R. Caldon; M. Coppo; R. Turri

2014-01-01T23:59:59.000Z

291

Planning of grid integrated distributed generators: A review of technology, objectives and techniques  

Science Journals Connector (OSTI)

Abstract The world is witnessing a transition from its present centralized generation paradigm to a future with increased share of distributed generation (DG). Integration of renewable energy sources (RES) based distributed generators is seen as a solution to decrease reliance on depleting fossil fuel reserves, increase energy security and provide an environment friendly solution to growing power demand. The planning of power system incorporating \\{DGs\\} has to take into account various factors such as nature of DG technology, impact of DG on operating characteristics of power system and economic considerations. This paper put forwards a comprehensive review on planning of grid integrated distributed generators. An overview of different DG technologies has been presented. Different issues associated with DG integration have been discussed. The planning objectives of DG integration have been surveyed in detail and have been critically reviewed with respect to conventional and RES based DG technologies. Different techniques used for optimal placement of \\{DGs\\} have also been investigated and compared. The extensive literature survey revealed that researchers have mostly focussed on DG integration planning using conventional DGs. RES based \\{DGs\\} have not been given due consideration. While integrating RES, their stochastic behaviour has not been appropriately accounted. Finally, visualizing the wide scope of research in the planning of grid integrated DGs; an attempt has been made to identify future research avenues.

Priyanka Paliwal; N.P. Patidar; R.K. Nema

2014-01-01T23:59:59.000Z

292

Updated greenhouse gas and criteria air pollutant emission factors and their probability distribution functions for electricity generating units  

SciTech Connect

Greenhouse gas (CO{sub 2}, CH{sub 4} and N{sub 2}O, hereinafter GHG) and criteria air pollutant (CO, NO{sub x}, VOC, PM{sub 10}, PM{sub 2.5} and SO{sub x}, hereinafter CAP) emission factors for various types of power plants burning various fuels with different technologies are important upstream parameters for estimating life-cycle emissions associated with alternative vehicle/fuel systems in the transportation sector, especially electric vehicles. The emission factors are typically expressed in grams of GHG or CAP per kWh of electricity generated by a specific power generation technology. This document describes our approach for updating and expanding GHG and CAP emission factors in the GREET (Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation) model developed at Argonne National Laboratory (see Wang 1999 and the GREET website at http://greet.es.anl.gov/main) for various power generation technologies. These GHG and CAP emissions are used to estimate the impact of electricity use by stationary and transportation applications on their fuel-cycle emissions. The electricity generation mixes and the fuel shares attributable to various combustion technologies at the national, regional and state levels are also updated in this document. The energy conversion efficiencies of electric generating units (EGUs) by fuel type and combustion technology are calculated on the basis of the lower heating values of each fuel, to be consistent with the basis used in GREET for transportation fuels. On the basis of the updated GHG and CAP emission factors and energy efficiencies of EGUs, the probability distribution functions (PDFs), which are functions that describe the relative likelihood for the emission factors and energy efficiencies as random variables to take on a given value by the integral of their own probability distributions, are updated using best-fit statistical curves to characterize the uncertainties associated with GHG and CAP emissions in life-cycle modeling with GREET.

Cai, H.; Wang, M.; Elgowainy, A.; Han, J. (Energy Systems)

2012-07-06T23:59:59.000Z

293

Time dependent evolution of RF-generated non-thermal particle distributions in fusion plasmas  

Science Journals Connector (OSTI)

We describe fully self-consistent time-dependent simulations of radio frequency (RF) generated ion distributions in the ion cyclotron range of frequencies and RF-generated electron distributions in the lower hybrid range of frequencies using combined FokkerPlanck and full wave electromagnetic field solvers. In each regime, the non-thermal particle distributions have been used in synthetic diagnostic codes to compare with diagnostic measurements from experiment, thus providing validation of the simulation capability. The computational intensive simulations require multiple full wave code runs that iterate with a FokkerPlanck code. We will discuss advanced algorithms that have been implemented to accelerate both the massively parallel full wave simulations as well as the iteration with the distribution code. A vector extrapolation method (Sidi A 2008 Comput. Math. Appl. 56) that permits Jacobian-free acceleration of the traditional fixed point iteration technique is used to reduce the number of iterations needed between the distribution and wave codes to converge to self-consistency. The computational burden of the parallel full wave codes has been reduced by using a more efficient two level parallel decomposition that improves the strong scaling of the codes and reduces the communication overhead.

J C Wright; A Bader; L A Berry; P T Bonoli; R W Harvey; E F Jaeger; J-P Lee; A Schmidt; E D'Azevedo; I Faust; C K Phillips; E Valeo

2014-01-01T23:59:59.000Z

294

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

295

Multi-objective quasi-oppositional teaching learning based optimization for optimal location of distributed generator in radial distribution systems  

Science Journals Connector (OSTI)

Abstract This paper presents a novel quasi-oppositional teaching learning based optimization (QOTLBO) methodology in order to find the optimal location of distributed generator to simultaneously optimize power loss, voltage stability index and voltage deviation of radial distribution network. The basic disadvantage of the original teaching learning based optimization (TLBO) algorithm is that it gives a near optimal solution rather than an optimal one in a limited iteration cycles. In this paper, opposition based learning (OBL) and quasi OBL concepts are introduced in original TLBO algorithm for improving the convergence speed and simulation results of TLBO. In order to show the effectiveness and superiority, the proposed algorithms are tested on 33-bus, 69-bus and 118-bus radial distribution networks. The simulation results of the proposed methods are compared with those obtained by other artificial intelligence techniques like GA/PSO, GA, PSO and loss sensitivity factor simulated annealing (LSFSA). The results show that the QOTLBO surpasses the other techniques in terms of solution quality.

Sneha Sultana; Provas Kumar Roy

2014-01-01T23:59:59.000Z

296

Simple model for decay of laser generated shock waves  

SciTech Connect

A simple model is derived to calculate the hydrodynamic decay of laser-generated shock waves. Comparison with detailed hydrocode simulations shows good agreement between calculated time evolution of shock pressure, position, and instantaneous pressure profile. Reliability of the model decreases in regions of the target where superthermal-electron preheat effects become comparable to shock effects.

Trainor, R.J.

1980-10-24T23:59:59.000Z

297

S & P Opines on Securitizing Distributed Generation | OpenEI Community  

Open Energy Info (EERE)

S & P Opines on Securitizing Distributed Generation S & P Opines on Securitizing Distributed Generation Home > Groups > OpenEI Community Central Graham7781's picture Submitted by Graham7781(1992) Super contributor 10 July, 2012 - 14:04 imported OpenEI Article originally published at NREL's Renewable Energy Project Finance website Renewable energy-related asset securitization has been gaining a lot of traction lately as a number of key stakeholders from both the private and public sectors have been stepping up their collaborative efforts (including NREL's finance team). To help frame the discussion and facilitate the creation of ratings-quality renewable energy asset pools, Standard and Poor's (S&P) rating agency has recently produced high-level guidance on various possible risk factors in the potential securitization

298

DOE Hydrogen Analysis Repository: Second Generation Model (SGM)  

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

Second Generation Model (SGM) Second Generation Model (SGM) Project Summary Full Title: Second Generation Model (SGM) Project ID: 166 Principal Investigator: Roland Sands Brief Description: The SGM projects economic activity, energy consumption and greenhouse gas emissions for each region in five-year time steps from 1990 through 2050. Purpose Project economic activity, energy consumption and greenhouse gas emissions for various regions. Performer Principal Investigator: Roland Sands Organization: Pacific Northwest National Laboratory (PNNL) Address: 8400 Baltimore Avenue, JGCRI College Park, MD 20740 Telephone: 301-314-6765 Email: roland.sands@pnl.gov Project Description Type of Project: Model Category: Energy Infrastructure, Environmental, Macro-Economic User Inputs: Factor productivity growth rates by sector (9 in SGM 98) and region; capital stocks by vintage, demographic determinants (endogenous demographics), fossil and non-fossil fuel resources

299

An ExpressionRewriting Framework to Generate Communication Sets for HPF Programs with BlockCyclic Distribution  

E-Print Network (OSTI)

information (how data are distributed among processors), and generate the communication codes[3, 16, 19An Expression­Rewriting Framework to Generate Communication Sets for HPF Programs with Block­Cyclic Distribution Gwan­Hwan Hwang Jenq Kuen Lee Department of Computer Science, National Tsing­Hua University

Lee, Jenq-Kuen

300

Modeling of Field Distribution and Energy Storage in Diphasic Dielectrics  

E-Print Network (OSTI)

Modeling of Field Distribution and Energy Storage in Diphasic Dielectrics S. K. Patil, M. Y, USA Modeling of electrostatic field distribution and energy storage in diphasic dielectrics containing to the increased energy storage density. For composites with lower volume fractions of high-permittivity inclusions

Koledintseva, Marina Y.

Note: This page contains sample records for the topic "modeling distributed generation" 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

New approach for modelling distributed MEMS transmission lines  

E-Print Network (OSTI)

New approach for modelling distributed MEMS transmission lines K. Topalli, M. Unlu, S. Demir, O for the distributed MEMS transmission line (DMTL) structures. In this new model, the MEMS bridges that are used as the loading elements of the DMTL structures are represented as low-impedance transmission lines, rather than

Akin, Tayfun

302

Orchestration in Orc: A Deterministic Distributed Programming Model  

E-Print Network (OSTI)

Orchestration in Orc: A Deterministic Distributed Programming Model William R. Cook and Jayadev}@cs.utexas.edu Abstract. Orc is a new model of distributed programming which pro- vides a strong theoretical foundation for internet computing based on compositions of web-services. Orc combines some of the power and flex- ibility

Misra, Jayadev

303

Photovoltaic subsystem marketing and distribution model: programming manual. Final report  

SciTech Connect

Complete documentation of the marketing and distribution (M and D) computer model is provided. The purpose is to estimate the costs of selling and transporting photovoltaic solar energy products from the manufacturer to the final customer. The model adjusts for the inflation and regional differences in marketing and distribution costs. The model consists of three major components: the marketing submodel, the distribution submodel, and the financial submodel. The computer program is explained including the input requirements, output reports, subprograms and operating environment. The program specifications discuss maintaining the validity of the data and potential improvements. An example for a photovoltaic concentrator collector demonstrates the application of the model.

Not Available

1982-07-01T23:59:59.000Z

304

New model for ultracompact coaxial Marx pulse generator simulations  

Science Journals Connector (OSTI)

This article describes a new simulation model developed with PSPICE in order to improve the ultra compact Marx generators designed at the French-German Research Institute of Saint-Louis (ISL). The proposed model is based on a Marx elementary unit and is an equivalent electric circuit that matches the actual configuration of the generator. It consists of a structural description of the elementary stage of a Marx generator including stray components. It also includes a behavioral model of the spark gap switches based on the Vlastos formula determining the arc resistance value. The prebreakdown delay is also taken into account. Experimental data have been used to validate the results of the simulations. An original indirect measurement allowing the estimation of the spark gap resistance is also proposed.

Benot Martin; Pierre Raymond; Joseph Wey

2006-01-01T23:59:59.000Z

305

Making the Economic Case for Small-Scale Distributed Wind -- A Screening for Distributed Generation Wind Opportunities: Preprint  

SciTech Connect

This study was an offshoot of a previous assessment, which examined the potential for large-scale, greater than 50 MW, wind development on occupied federal agency lands. The study did not find significant commercial wind development opportunities, primarily because of poor wind resource on available and appropriately sized land areas or land use or aesthetic concerns. The few sites that could accommodate a large wind farm failed to have transmission lines in optimum locations required to generate power at competitive wholesale prices. The study did identify a promising but less common distributed generation (DG) development option. This follow-up study documents the NREL/Global Energy Concepts team efforts to identify economic DG wind projects at a select group of occupied federal sites. It employs a screening strategy based on project economics that go beyond quantity of windy land to include state and utility incentives as well as the value of avoided power purchases. It attempts to account for the extra costs and difficulties associated with small projects through the use of project scenarios that are more compatible with federal facilities and existing land uses. These benefits and barriers of DG are discussed, and the screening methodology and results are included. The report concludes with generalizations about the screening method and recommendations for improvement and other potential applications for this methodology.

Kandt, A.; Brown, E.; Dominick, J.; Jurotich, T.

2007-06-01T23:59:59.000Z

306

Modeling, control and electromagnetic transient simulation of the doubly fed induction generator-based wind energy generation system  

Science Journals Connector (OSTI)

This paper presents the dynamic modeling and the stator-voltage-aligned control (SVAC) strategies of the doubly fed induction generator (DFIG)-based wind energy generation system (WEGS). The state-space dynamic model of the DFIG is derived in the synchronous ... Keywords: EMTP-ATP, double-fed induction generators, engineering education, internal model control, maximum power-point tracking algorithm, stator-voltage-aligned control, wind power generation

Yang Han, Pan Shen

2014-03-01T23:59:59.000Z

307

Regulatory Considerations for Developing Distributed Generation Projects Webinar May 23, 2012  

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

Jay Morrison Jay Morrison Vice President, Regulatory Issues National Rural Electric Cooperative Association jay.morrison@nreca.coop Susan Kelly General Counsel, Senior Vice President American Public Power Association skelly@publicpower.org  DG penetration rates are increasing rapidly  Careful selection of business model can maximize value for all participants by:  Maximizing access to government incentives  Maximize access to all available value streams for the developer, customer, and utility  Minimize regulatory burdens for all parties  Provide win-win-win solution 2  What size generator?  What fuel or energy source? Does it include storage?  Who pays the up-front cost of the generator?  Who owns the generator?  Who operates the generator?

308

Relativistic Diffusion Model and Analysis of Large Transverse Momentum Distributions  

SciTech Connect

In order to describe large transverse momentum (pT) distributions observed in high energy nucleus-nucleus collisions, a stochastic model in the three dimensional rapidity space is introduced. The fundamental solution of the radial symmetric diffusion equation is Gaussian-like in radial rapidity. We can also derive a pT or radial rapidity distribution function, where a distribution of emission center is taken into account. The solution is applied to the analysis of observed large p T distributions of charged particles. It is shown that our model approaches to a power function of p T in the high transverse momentum limit.

Suzuki, Naomichi [Department of Comprehensive Management, Matsumoto University, Matsumoto 390-1295 (Japan); Biyajima, Minoru [Department of Physics, Shinshu University, Matsumoto, 390-8621 (Japan)

2006-04-11T23:59:59.000Z

309

Relativistic diffusion model and analysis of large transverse momentum distributions  

E-Print Network (OSTI)

In order to describe large transverse momentum ($p_T$) distributions observed in high energy nucleus-nucleus collisions, a stochastic model in the three dimensional rapidity space is introduced. The fundamental solution of the radial symmetric diffusion equation is Gaussian-like in radial rapidity. We can also derive a $p_T$ or radial rapidity distribution function, where a distribution of emission center is taken into account. It is applied to the analysis of observed large $p_T$ distributions of charged particles. It is shown that our model approaches to a power function of $p_T$ in the high transverse momentum limit.

Naomichi Suzuki; Minoru Biyajima

2005-10-01T23:59:59.000Z

310

GREENHOUSE GAS REDUCTION POTENTIAL WITH COMBINED HEAT AND POWER WITH DISTRIBUTED GENERATION PRIME MOVERS - ASME 2012  

SciTech Connect

Pending or recently enacted greenhouse gas regulations and mandates are leading to the need for current and feasible GHG reduction solutions including combined heat and power (CHP). Distributed generation using advanced reciprocating engines, gas turbines, microturbines and fuel cells has been shown to reduce greenhouse gases (GHG) compared to the U.S. electrical generation mix due to the use of natural gas and high electrical generation efficiencies of these prime movers. Many of these prime movers are also well suited for use in CHP systems which recover heat generated during combustion or energy conversion. CHP increases the total efficiency of the prime mover by recovering waste heat for generating electricity, replacing process steam, hot water for buildings or even cooling via absorption chilling. The increased efficiency of CHP systems further reduces GHG emissions compared to systems which do not recover waste thermal energy. Current GHG mandates within the U.S Federal sector and looming GHG legislation for states puts an emphasis on understanding the GHG reduction potential of such systems. This study compares the GHG savings from various state-of-the- art prime movers. GHG reductions from commercially available prime movers in the 1-5 MW class including, various industrial fuel cells, large and small gas turbines, micro turbines and reciprocating gas engines with and without CHP are compared to centralized electricity generation including the U.S. mix and the best available technology with natural gas combined cycle power plants. The findings show significant GHG saving potential with the use of CHP. Also provided is an exploration of the accounting methodology for GHG reductions with CHP and the sensitivity of such analyses to electrical generation efficiency, emissions factors and most importantly recoverable heat and thermal recovery efficiency from the CHP system.

Curran, Scott [ORNL; Theiss, Timothy J [ORNL; Bunce, Michael [ORNL

2012-01-01T23:59:59.000Z

311

Atmospheric Environment 40 (2006) 55085521 Air quality impacts of distributed power generation in the South  

E-Print Network (OSTI)

entails the use of power generation technologies (e.g., fuel cells, gas turbines) to produce electricity in the South Coast Air Basin of California 1: Scenario development and modeling analysis M.A. Rodriguez, M are developed to determine the potential impacts of unexpected outcomes. Realistic implementations of DG

Dabdub, Donald

312

Action Models: A Reliability Modeling Formalism for Fault-Tolerant Distributed Computing Systems  

E-Print Network (OSTI)

Action Models: A Reliability Modeling Formalism for Fault-Tolerant Distributed Computing Systems. Introduction Model-based evaluation of the reliability of distributed systems has traditionally required expert- proach to analyze the reliability of fault-tolerant distributed systems. More in particular, we want

Newcastle upon Tyne, University of

313

Scaled modeling and simulation of ocean wave linear generator buoy systems.  

E-Print Network (OSTI)

??Accurate scaled modeling and simulation are critical to advancing ocean wave linear generator buoys. A 100th scaled model of ocean wave generator buoy systems is (more)

Gore, Ganesh P.

2006-01-01T23:59:59.000Z

314

ERCOT's Dynamic Model of Wind Turbine Generators: Preprint  

SciTech Connect

By the end of 2003, the total installed wind farm capacity in the Electric Reliability Council of Texas (ERCOT) system was approximately 1 gigawatt (GW) and the total in the United States was about 5 GW. As the number of wind turbines installed throughout the United States increases, there is a greater need for dynamic wind turbine generator models that can properly model entire power systems for different types of analysis. This paper describes the ERCOT dynamic models and simulations of a simple network with different types of wind turbine models currently available.

Muljadi, E.; Butterfield, C. P.; Conto, J.; Donoho, K.

2005-08-01T23:59:59.000Z

315

Optimizing Geographic Allotment of Photovoltaic Capacity in a Distributed Generation Setting: Preprint  

SciTech Connect

A multi-objective optimization was performed to allocate 2MW of PV among four candidate sites on the island of Lanai such that energy was maximized and variability in the form of ramp rates was minimized. This resulted in an optimal solution set which provides a range of geographic allotment alternatives for the fixed PV capacity. Within the optimal set, a tradeoff between energy produced and variability experienced was found, whereby a decrease in variability always necessitates a simultaneous decrease in energy. A design point within the optimal set was selected for study which decreased extreme ramp rates by over 50% while only decreasing annual energy generation by 3% over the maximum generation allocation. To quantify the allotment mix selected, a metric was developed, called the ramp ratio, which compares ramping magnitude when all capacity is allotted to a single location to the aggregate ramping magnitude in a distributed scenario. The ramp ratio quantifies simultaneously how much smoothing a distributed scenario would experience over single site allotment and how much a single site is being under-utilized for its ability to reduce aggregate variability. This paper creates a framework for use by cities and municipal utilities to reduce variability impacts while planning for high penetration of PV on the distribution grid.

Urquhart, B.; Sengupta, M.; Keller, J.

2012-09-01T23:59:59.000Z

316

Optimal allocation of multi-type distributed generators using backtracking search optimization algorithm  

Science Journals Connector (OSTI)

Abstract In this article, a very recently swarm optimization technique namely a backtracking search optimization algorithm (BSOA) is addressed to assign the distributed generators (DGs) along radial distribution networks. One of the main features of the BSOA is a single control parameter and not over sensitive to the initial value of this factor. The objective function is adapted with weighting factor to reduce the network real loss and enhance the voltage profile with the purpose of improving the operating performance. In addition, the combined power factor and reduction in network reactive power loss are spotted. Set of fuzzy expert rules using loss sensitivity factors and bus voltages are employed to identify the initial DGs locations. The proposed approach is attuned to tackle the shortfall of loss sensitivity factors and to decide the final placement of the DGs. Two types of the \\{DGs\\} are studied and investigated. The proposed method is demonstrated and validated thru many radial distribution networks with different sizes and complexities. The BSOA-based methodology can efficiently generate high-quality solutions compared to other competitive techniques in the literature.

Attia El-Fergany

2015-01-01T23:59:59.000Z

317

Modelling and simulation of faults in synchronous generators for robust numerical protection  

Science Journals Connector (OSTI)

When an internal fault occurs in a synchronous generator, the symmetry between the parallel paths of the winding is broken and different currents flow in them, due to unsymmetrical magnetic linkage between the stator windings. The aim of this paper is to present a simulation model to investigate the effect of internal fault on the parallel path currents of a large synchronous generator using direct phase quantities. This model is based on a modified winding function approach where the machine inductances are calculated directly from the machine winding distribution using machine electrical parameters instead of the geometrical ones. The simulation results for different cases of internal faults in salient-pole and non-salient-pole synchronous machines have been obtained. Salient-pole synchronous generator has wave winding distribution while the non-salient-pole generator has lap winding arrangement. Due to different stator winding arrangements, the two machines have been simulated individually. By using the simulated fault data, a suitable numerical protection scheme for synchronous generators can be developed.

Amrita Sinha; D.N. Vishwakarma; R.K. Srivastava

2012-01-01T23:59:59.000Z

318

Modeling of a detonation driven, linear electric generator facility  

E-Print Network (OSTI)

Modeling of a detonation driven, linear electric generator facility E.M. Braun, E. Baydar, and F.K. Lu 1 Introduction The pulsed detonation engine (PDE) has been developed over several decades due must consider if the unique properties of the detonation wave can be utilized to in- crease efficiency

Texas at Arlington, University of

319

System level modeling of thermoelectric generators for automotive applications  

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

Uses a model to predict and analyze the system-level performance of a thermoelectric generator in terms of the power output and the power density ? at the element, module and system-level and for a wide range of operating conditions.

320

Full expandable model of parallel self-excited induction generators  

E-Print Network (OSTI)

for wind and small hydro power plants [1, 2]. They have advantages over conventional synchronous generators of wind power into power networks, an accurate dynamic model of the overall wind farm system is required to analyse the interaction between the wind farm and the power system. A system of parallel-operated SEIGs

Simões, Marcelo Godoy

Note: This page contains sample records for the topic "modeling distributed generation" 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

Modeling Generator Power Plant Portfolios and Pollution Taxes in  

E-Print Network (OSTI)

Modeling Generator Power Plant Portfolios and Pollution Taxes in Electric Power Supply Chain-term solution (e.g.,are long-term solution (e.g., solar power and wind power (solar power and wind power Heavy user of fossil fuels:Heavy user of fossil fuels: Electric power industryElectric power industry

Nagurney, Anna

322

Laboratories for the 21st Century: Best Practices (Brochure): Onsite Distributed Generation Systems For Laboratories  

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

L L a b o r a t o r i e s f o r t h e 2 1 s t C e n t u r y : B e s t P r a c t i c e s This combined heat and power system at the Bristol-Myers Squibb laboratory in Wallingford, Connecticut, could meet 100% of the lab's power requirement, if necessary. Bernard Blesinger / PIX 12552 ONSITE DISTRIBUTED GENERATION SYSTEMS FOR LABORATORIES Introduction Laboratories have unique requirements for lighting, ventilation, and scientific equipment with each requiring a considerable amount of energy. The reliability of that energy is very important. Laboratories must be able to conduct research without power interruptions, which can damage both equipment and experiments. Generating power and heat on site is one good way to enhance energy reliability, improve fuel utilization efficiency, reduce utility costs,

323

1D ISING MODELS, COMPOUND GEOMETRIC DISTRIBUTIONS AND  

E-Print Network (OSTI)

1­D ISING MODELS, COMPOUND GEOMETRIC DISTRIBUTIONS AND SELFDECOMPOSABILITY # Zbigniew J. Jurek that the inverse of the partition function in 1­ D Ising model, as a function of the external field, is a product the L??evy­ Khintchine formula for infinite divisible variables. Key words and phrases: 1­D Ising model

Jurek, Zbigniew J.

324

1-D ISING MODELS, COMPOUND GEOMETRIC DISTRIBUTIONS AND  

E-Print Network (OSTI)

1-D ISING MODELS, COMPOUND GEOMETRIC DISTRIBUTIONS AND SELFDECOMPOSABILITY Zbigniew J. Jurek that the inverse of the partition function in 1- D Ising model, as a function of the external field, is a product the L´evy- Khintchine formula for infinite divisible variables. Key words and phrases: 1-D Ising model

Jurek, Zbigniew J.

325

Development, Demonstration, and Field Testing of Enterprise-Wide Distributed Generation Energy Management System: Final Report  

SciTech Connect

This report details progress on subcontract NAD-1-30605-1 between the National Renewable Energy Laboratory and RealEnergy (RE), the purpose of which is to describe RE's approach to the challenges it faces in the implementation of a nationwide fleet of clean cogeneration systems to serve contemporary energy markets. The Phase 2 report covers: utility tariff risk and its impact on market development; the effect on incentives on distributed energy markets; the regulatory effectiveness of interconnection in California; a survey of practical field interconnection issues; trend analysis for on-site generation; performance of dispatch systems; and information design hierarchy for combined heat and power.

Greenberg, S.; Cooley, C.

2005-01-01T23:59:59.000Z

326

Modeling of dimmable High Power LED illumination distribution using ANFIS on the isolated area  

Science Journals Connector (OSTI)

High power light emitting diodes (HP-LEDs) are more suitable for energy saving applications and have becoming replacing traditional fluorescent and incandescent bulbs for its energy efficient. Therefore, HP-LED lighting has been regarded in the next-generation lighting. In this study, illumination distribution of white color HP-LED is modeled by adaptive neuro-fuzzy inference system (ANFIS) approach on the isolated area while LED head is fixed. Subtractive clustering with hybrid learning approach is used to train the realized ANFIS architectures. End of the numerous experiment we finally concluded that, ANFIS could be used to modeling the illumination distribution applications perfectly.

?smail Kiyak; Vedat Topuz; Blent Oral

2011-01-01T23:59:59.000Z

327

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.

328

Quality Modeling of Water Distribution Systems using Sensitivity Equations  

E-Print Network (OSTI)

Quality Modeling of Water Distribution Systems using Sensitivity Equations P. Fabrie1 ; G. Gancel2 and the associated sensitivity equa- tions are solved for Water Distribution Systems (WDS). A new solution algorithm presented in this study permits global sensitivity analysis of the system to be performed and its efficiency

Boyer, Edmond

329

Collaborative Creativity: A Complex Systems Model with Distributed Affect  

E-Print Network (OSTI)

Collaborative Creativity: A Complex Systems Model with Distributed Affect Cecilia R. Aragon E16 2RD UK alisonwilliams62@googlemail.com ABSTRACT The study of creativity has received significant attention over the past century, with a recent increase in interest in collaborative, distributed creativity

Anderson, Richard

330

SeedChaser: Vertical soil tillage distribution model  

Science Journals Connector (OSTI)

Knowledge of the vertical distribution of surface residues, chemicals, or seeds following tillage operations is of great importance to a wide variety of soil research areas. This paper describes a 1D empirical vertical soil tillage distribution model ... Keywords: Conservation tillage, Leslie matrix, Seed movement, Seedbank, Soil movement

K. Spokas; F. Forcella; D. Archer; D. Reicosky

2007-05-01T23:59:59.000Z

331

Onsite Distributed Generation Systems For Laboratories, Laboratories for the 21st Century: Best Practices (Brochure)  

SciTech Connect

This guide provides general information on implementing onsite distributed generation systems in laboratory environments. Specific technology applications, general performance information, and cost data are provided to educate and encourage laboratory energy managers to consider onsite power generation or combined heat and power (CHP) systems for their facilities. After conducting an initial screening, energy managers are encouraged to conduct a detailed feasibility study with actual cost and performance data for technologies that look promising. Onsite distributed generation systems are small, modular, decentralized, grid-connected, or off-grid energy systems. These systems are located at or near the place where the energy is used. These systems are also known as distributed energy or distributed power systems. DG technologies are generally considered those that produce less than 20 megawatts (MW) of power. A number of technologies can be applied as effective onsite DG systems, including: (1) Diesel, natural gas, and dual-fuel reciprocating engines; (2) Combustion turbines and steam turbines; (3) Fuel cells; (4) Biomass heating; (5) Biomass combined heat and power; (6) Photovoltaics; and (7) Wind turbines. These systems can provide a number of potential benefits to an individual laboratory facility or campus, including: (1) High-quality, reliable, and potentially dispatchable power; (2) Low-cost energy and long-term utility cost assurance, especially where electricity and/or fuel costs are high; (3) Significantly reduced greenhouse gas (GHG) emissions. Typical CHP plants reduce onsite GHG by 40 to 60 percent; (4) Peak demand shaving where demand costs are high; (5) CHP where thermal energy can be used in addition to electricity; (6) The ability to meet standby power needs, especially where utility-supplied power is interrupted frequently or for long periods and where standby power is required for safety or emergencies; and (7) Use for standalone or off-grid systems where extending the grid is too expensive or impractical. Because they are installed close to the load, DG systems avoid some of the disadvantages of large, central power plants, such as transmission and distribution losses over long electric lines.

Not Available

2011-09-01T23:59:59.000Z

332

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

333

Measurement and Modeling of Spatial NH3 Storage Distributions...  

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

in a Commercial Small Port Cu Zeolite Urea SCR Catalyst Measurement and Modeling of Spatial NH3 Storage Distributions in a Commercial Small Port Cu Zeolite Urea SCR Catalyst...

334

Stochastic model of heterogeneity in earthquake slip spatial distributions  

Science Journals Connector (OSTI)

......research-article Seismology Stochastic model of heterogeneity in earthquake slip spatial distributions Daniel Lavallee 1 Pengcheng Liu 1 Ralph J. Archuleta 1 2 1 Institute for Crustal Studies, University of California, Santa Barbara, CA 93106, California......

Daniel Lavalle; Pengcheng Liu; Ralph J. Archuleta

2006-05-01T23:59:59.000Z

335

Universal software packages to model the distributed-parameter systems  

Science Journals Connector (OSTI)

Consideration was given to the universal software packages for modeling objects and distributed-parameter systems obeying the partial differential equations. The packages may serve as important tools for industrial automation because the majority of ... Keywords: 07.05.Tp

E. E. Dudnikov

2009-01-01T23:59:59.000Z

336

New Zealand Interactive Electricity Generation Cost Model 2010 | Open  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » New Zealand Interactive Electricity Generation Cost Model 2010 Jump to: navigation, search Tool Summary LAUNCH TOOL Name: New Zealand Interactive Electricity Generation Cost Model 2010 Agency/Company /Organization: New Zealand Energy Authority Sector: Energy Topics: Finance, Implementation, Co-benefits assessment Resource Type: Software/modeling tools User Interface: Spreadsheet Website: www.med.govt.nz/templates/MultipageDocumentTOC____45553.aspx Country: New Zealand Cost: Free Australia and New Zealand Coordinates: -40.900557°, 174.885971°

337

The next generation of shared seismic models for R&D.  

SciTech Connect

We have created several elastic 2-D models and are currently defining a complex 3D elastic salt model for distribution to the international research community for use in the calibration of AVO, polarization filtering, tomography, multicomponent seismic analysis, converted wave tomography, and seismic attribute analysis. We have also obtained the release of several real 2-D data sets corresponding to the 2-D models to test the robustness of any new techniques. In addition to the synthetic seismograms generated over these models, we will release the model definition of layers and rock properties to the research community so that others may modify them to include features beyond the scope of our current effort, such as gas clouds, fractures, and diagenetic changes. Finally, we expect these models to serve as a test bed for impmving the computational efficiency of elastic mode ling as a goal in itself.

Marfurt, K. J.; Wiley, R. (Robert); Martin, G. S. (Gary S.); House, L. S. (Leigh S.); Larsen, S. C. (Shawn C.)

2002-01-01T23:59:59.000Z

338

A Simulation Model for Evaluating Distributed Systems Dependability  

E-Print Network (OSTI)

In this paper we present a new simulation model designed to evaluate the dependability in distributed systems. This model extends the MONARC simulation model with new capabilities for capturing reliability, safety, availability, security, and maintainability requirements. The model has been implemented as an extension of the multithreaded, process oriented simulator MONARC, which allows the realistic simulation of a wide-range of distributed system technologies, with respect to their specific components and characteristics. The extended simulation model includes the necessary components to inject various failure events, and provides the mechanisms to evaluate different strategies for replication, redundancy procedures, and security enforcement mechanisms, as well. The results obtained in simulation experiments presented in this paper probe that the use of discrete-event simulators, such as MONARC, in the design and development of distributed systems is appealing due to their efficiency and scalability.

Dobre, Ciprian; Cristea, Valentin

2012-01-01T23:59:59.000Z

339

Generative Models for Super-Resolution Single Molecule Microscopy Images of Biological Structures  

E-Print Network (OSTI)

an information bridge between super-resolution microscopy and structural biology by using generative models

Matsuda, Noboru

340

Power System Modeling of 20percent Wind-Generated Electricity by 2030  

E-Print Network (OSTI)

power system modeling, wind energy I. I NTRODUCTION Generating electricity from wind technology has several advantages

Hand, Maureen

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

Multi-physics modeling of thermoelectric generators for waste heat recovery applications  

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

Model developed provides effective guidelines to designing thermoelectric generation systems for automotive waste heat recovery applications

342

Estimating Predictive Variance for Statistical Gas Distribution Modelling  

SciTech Connect

Recent publications in statistical gas distribution modelling have proposed algorithms that model mean and variance of a distribution. This paper argues that estimating the predictive concentration variance entails not only a gradual improvement but is rather a significant step to advance the field. This is, first, since the models much better fit the particular structure of gas distributions, which exhibit strong fluctuations with considerable spatial variations as a result of the intermittent character of gas dispersal. Second, because estimating the predictive variance allows to evaluate the model quality in terms of the data likelihood. This offers a solution to the problem of ground truth evaluation, which has always been a critical issue for gas distribution modelling. It also enables solid comparisons of different modelling approaches, and provides the means to learn meta parameters of the model, to determine when the model should be updated or re-initialised, or to suggest new measurement locations based on the current model. We also point out directions of related ongoing or potential future research work.

Lilienthal, Achim J.; Asadi, Sahar; Reggente, Matteo [AASS Research Center, Oerebro University (Sweden)

2009-05-23T23:59:59.000Z

343

Reduction in subsidy for solar power as distributed electricity generation in Indian future competitive power market  

Science Journals Connector (OSTI)

Developed countries have seen renewable energy as a key tool for emission reduction as well as reducing reliance on oil gas and coal.Renewable energy sources (RESs) and technologies have potential to provide solutions to the longstanding energy problems being faced by the developing countries. In the future competitive electricity market for India it becomes very much important to give special consideration for development of RESs due to economic environmental and other social problems related with conventional generations.Solar energy can be an important part of India's plan not only to add new capacity but also to increase energy security and lead the massive market for renewable energy. The major problem with solar powergeneration (SPG) is high cost of renewable generation. The Indian government is providing a lot of subsidy in order to encourage renewable energygenerations. This paper presents an approach for reduction in subsidy of SPG used as distributed generator in competitive power market. The proposed approach has been validated with IEEE 14-bus and IEEE 30-bus systems.

Naveen Kumar Sharma; Yog Raj Sood

2012-01-01T23:59:59.000Z

344

Viability of Small Wind Distributed Generation for Farmers Who Irrigate (Poster)  

SciTech Connect

About 14% of U.S. farms are irrigated, representing 55 million acres of irrigated land. Irrigation on these farms is a major energy user in the United States, accounting for one-third of water withdrawals and 137 billion gallons per day. More than half of the Irrigation systems use electric energy. Wind energy can be a good choice for meeting irrigation energy needs. Nine of the top 10 irrigation states (California, Texas, Idaho, Arkansas, Colorado, Nebraska, Arizona, Kansas, Washington, and Oregon) have good to excellent wind resources. Many rural areas have sufficient wind speeds to make wind an attractive alternative, and farms and ranches can often install a wind energy system without impacting their ability to plant crops and graze livestock. Additionally, the rising and uncertain future costs of diesel, natural gas, and even electricity increase the potential effectiveness for wind energy and its predictable and competitive cost. In general, wind-powered electric generation systems generate more energy in the winter months than in the summer months when most crops need the water. Therefore, those states that have a supportive net metering policy can dramatically impact the viability of an onsite wind turbine. This poster presentation highlights case studies that show favorable and unfavorable policies that impact the growth of small wind in this important sector and demonstrate how net metering policies affect the viability of distributed wind generation for farmers who irrigate.

Meadows, B.; Forsyth, T.; Johnson, S.; Healow, D.

2010-05-01T23:59:59.000Z

345

Cost and Performance Assumptions for Modeling Electricity Generation Technologies  

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

Cost and Performance Cost and Performance Assumptions for Modeling Electricity Generation Technologies Rick Tidball, Joel Bluestein, Nick Rodriguez, and Stu Knoke ICF International Fairfax, Virginia Subcontract Report NREL/SR-6A20-48595 November 2010 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Cost and Performance Assumptions for Modeling Electricity Generation Technologies Rick Tidball, Joel Bluestein, Nick Rodriguez, and Stu Knoke ICF International Fairfax, Virginia NREL Technical Monitor: Jordan Macknick

346

Model Parameterization, Prior Distributions, and the General Time-Reversible Model in Bayesian Phylogenetics  

E-Print Network (OSTI)

Bayesian phylogenetic methods require the selection of prior probability distributions for all parameters of the model of evolution. These distributions allow one to incorporate prior information into a Bayesian analysis, ...

Zwickl, Derrick J.; Holder, Mark T.

2004-01-01T23:59:59.000Z

347

Modeling acid-gas generation from boiling chloride brines  

SciTech Connect

This study investigates the generation of HCl and other acid gases from boiling calcium chloride dominated waters at atmospheric pressure, primarily using numerical modeling. The main focus of this investigation relates to the long-term geologic disposal of nuclear waste at Yucca Mountain, Nevada, where pore waters around waste-emplacement tunnels are expected to undergo boiling and evaporative concentration as a result of the heat released by spent nuclear fuel. Processes that are modeled include boiling of highly concentrated solutions, gas transport, and gas condensation accompanied by the dissociation of acid gases, causing low-pH condensate. Simple calculations are first carried out to evaluate condensate pH as a function of HCl gas fugacity and condensed water fraction for a vapor equilibrated with saturated calcium chloride brine at 50-150 C and 1 bar. The distillation of a calcium-chloride-dominated brine is then simulated with a reactive transport model using a brine composition representative of partially evaporated calcium-rich pore waters at Yucca Mountain. Results show a significant increase in boiling temperature from evaporative concentration, as well as low pH in condensates, particularly for dynamic systems where partial condensation takes place, which result in enrichment of HCl in condensates. These results are in qualitative agreement with experimental data from other studies. The combination of reactive transport with multicomponent brine chemistry to study evaporation, boiling, and the potential for acid gas generation at the proposed Yucca Mountain repository is seen as an improvement relative to previously applied simpler batch evaporation models. This approach allows the evaluation of thermal, hydrological, and chemical (THC) processes in a coupled manner, and modeling of settings much more relevant to actual field conditions than the distillation experiment considered. The actual and modeled distillation experiments do not represent expected conditions in an emplacement drift, but nevertheless illustrate the potential for acid-gas generation at moderate temperatures (<150 C).

Zhang, Guoxiang; Spycher, Nicolas; Sonnenthal, Eric; Steefel, Carl

2009-11-16T23:59:59.000Z

348

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

349

Essential Terrestrial Variable data workflows for distributed water resources modeling  

Science Journals Connector (OSTI)

This paper discusses a prototype infrastructure, HydroTerre, that provides researchers, educators and resource managers with seamless access to geospatial/geotemporal data for supporting physics-based numerical models. The prototype defines the supporting ... Keywords: Data workflow, Distributed hydrologic model, Essential Terrestrial Variables, Geographic information systems, HydroTerre, PIHM, Web services

Lorne Leonard; Christopher J. Duffy

2013-12-01T23:59:59.000Z

350

Runtime Performance Modeling and Measurement of Adaptive Distributed Object Applications  

Science Journals Connector (OSTI)

Distributed applications that can adapt at runtime to changing quality of service (QoS) require a model of the expected QoS and of the possible application adaptations. QoS models in turn require runtime measurements, both in-band and out-of-band, from ...

John A. Zinky; Joseph P. Loyall; Richard Shapiro

2002-10-01T23:59:59.000Z

351

LHC $Z^`$ discovery potential for models with continuously distributed mass  

E-Print Network (OSTI)

We study the Large Hadron Collider (LHC) discovery potential for $Z^`$ models with continuously distributed mass for $\\sqrt{s} = 7, 10$ and 14 TeV centre-of-mass energies. One of possible LHC signatures for such models is the existence of broad resonance in Drell-Yan reaction $pp \\to Z^` + ... \\to l^+l^- + ...$.

N. V. Krasnikov

2010-04-22T23:59:59.000Z

352

An optimisation model for optimal and sustainable distribution  

Science Journals Connector (OSTI)

In many companies, a large share of costs in value chains is due to the distribution logistics. The problem is known as the vehicle routing problem (VRP) and many different algorithms are used for approximate solutions. The main point of the problem is to carry out deliveries from the central storage facility to all customers incurring minimal costs. This paper aims to present development and implementation of such a model and its application for a special distribution and customer network. Although the conceptual idea of the model is primarily based on the economical cost optimisation and consequentially on as much profit as possible, the model can simply be upgraded with ecological or environmentally friendly aspects. So the aim of the model is an optimisation tool upgraded by sustainable development of logistics and distribution.

Rok Strašek

2013-01-01T23:59:59.000Z

353

A Simple Generative Model of Collective Online Behaviour  

E-Print Network (OSTI)

Human activities---from voter mobilization to political protests---increasingly take place in online environments, providing novel opportunities for relating individual behaviours to population-level outcomes. The recent availability of data sets that capture the behaviour of individuals participating in online social systems has driven the emerging field of computational social science, as large-scale empirical data sets enable the development of detailed computational models of individual and collective behaviour. Given the inherent limitations of observational data, it is crucial to investigate the extent to which models of collective dynamics can distinguish between different individual-level mechanisms. Here we introduce a simple generative model for the collective behaviour of millions of social networking site users who are deciding between different software applications. Our model incorporates two distinct components: one is associated with recent decisions of users, and the other reflects the cumula...

Gleeson, James P; Onnela, Jukka-Pekka; Porter, Mason A; Reed-Tsochas, Felix

2013-01-01T23:59:59.000Z

354

Diagnostic and Prognostic Models for Generator Step-Up Transformers  

SciTech Connect

In 2014, the online monitoring (OLM) of active components project under the Light Water Reactor Sustainability program at Idaho National Laboratory (INL) focused on diagnostic and prognostic capabilities for generator step-up transformers. INL worked with subject matter experts from the Electric Power Research Institute (EPRI) to augment and revise the GSU fault signatures previously implemented in the Electric Power Research Institutes (EPRIs) Fleet-Wide Prognostic and Health Management (FW-PHM) Suite software. Two prognostic models were identified and implemented for GSUs in the FW-PHM Suite software. INL and EPRI demonstrated the use of prognostic capabilities for GSUs. The complete set of fault signatures developed for GSUs in the Asset Fault Signature Database of the FW-PHM Suite for GSUs is presented in this report. Two prognostic models are described for paper insulation: the Chendong model for degree of polymerization, and an IEEE model that uses a loading profile to calculates life consumption based on hot spot winding temperatures. Both models are life consumption models, which are examples of type II prognostic models. Use of the models in the FW-PHM Suite was successfully demonstrated at the 2014 August Utility Working Group Meeting, Idaho Falls, Idaho, to representatives from different utilities, EPRI, and the Halden Research Project.

Vivek Agarwal; Nancy J. Lybeck; Binh T. Pham

2014-09-01T23:59:59.000Z

355

Distributed Generation Study/10 West 66th Street Corp | Open Energy  

Open Energy Info (EERE)

10 West 66th Street Corp 10 West 66th Street Corp < Distributed Generation Study Jump to: navigation, search Study Location New York, New York Site Description Residential-Multifamily-Single Building Study Type Long-term Monitoring Technology Microturbine Prime Mover Ingersoll Rand I-R PowerWorks 70 Heat Recovery Systems Built-in Fuel Natural Gas System Installer DSM Engineering System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 70 kW0.07 MW 70,000 W 70,000,000 mW 7.0e-5 GW 7.0e-8 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 300000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2005/11/17 Monitoring Termination Date 1969/12/31

356

Spectroscopic measurement of ion temperature and ion velocity distributions in the flux-coil generated FRC  

SciTech Connect

One aim of the flux-coil generated field reversed configuration at Tri Alpha Energy (TAE) is to establish the plasma where the ion rotational energy is greater than the ion thermal energy. To verify this, an optical diagnostic was developed to simultaneously measure the Doppler velocity-shift and line-broadening using a 0.75 m, 1800 groves/mm, spectrometer. The output spectrum is magnified and imaged onto a 16-channel photomultiplier tube (PMT) array. The individual PMT outputs are coupled to high-gain, high-frequency, transimpedance amplifiers, providing fast-time response. The Doppler spectroscopy measurements, along with a survey spectrometer and photodiode-light detector, form a suite of diagnostics that provide insights into the time evolution of the plasma-ion distribution and current when accelerated by an azimuthal-electric field.

Gupta, D.; Gota, H.; Hayashi, R.; Kiyashko, V.; Morehouse, M.; Primavera, S. [Tri Alpha Energy, Inc., Rancho Santa Margarita, California 92688 (United States); Bolte, N. [Tri Alpha Energy, Inc., Rancho Santa Margarita, California 92688 (United States); Department of Physics and Astronomy, University of California, Irvine, California 92697 (United States); Marsili, P. [Department of Physics, University of Pisa, Largo B. Pontecorvo 3, 56127 Pisa (Italy); Roche, T. [Department of Physics and Astronomy, University of California, Irvine, California 92697 (United States); Wessel, F. [Department of Physics and Astronomy, University of California, Irvine, California 92697 (United States); Tri Alpha Energy, Inc., Rancho Santa Margarita, California 92688 (United States)

2010-10-15T23:59:59.000Z

357

Commercialization of a 2.5kW Utility Interactive Inverter for Distributed Generation  

SciTech Connect

Through this project, Advanced Energy Conversion (AEC) has developed, tested, refined and is preparing to commercialize a 2.5kW utility-interactive inverter system for distributed generation. The inverter technology embodies zero-voltage switching technology that will ultimately yield a system that is smaller, less expensive and more efficient than existing commercial technologies. This program has focused on commercial success through careful synthesis of technology, market-focus and business development. AEC was the primary participant. AEC is utilizing contract manufacturers in the early stages of production, allowing its technical staff to focus on quality control issues and product enhancements. The objective of this project was to bring the AEC inverter technology from its current pre-production state to a commercial product. Federal funds have been used to build and test production-intent inverters, support the implementation of the commercialization plan and bring the product to the point of UL certification.

Torrey, David A.

2006-05-26T23:59:59.000Z

358

Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille |  

Open Energy Info (EERE)

Aisin Seiki G60 at Hooligans Bar and Grille Aisin Seiki G60 at Hooligans Bar and Grille < Distributed Generation Study Jump to: navigation, search Study Location Liverpool, New York Site Description Commercial-Restaurant Study Type Field Test Technology Internal Combustion Engine Prime Mover Aisin Seiki G60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer ECO Technical Solutions System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 6 kW0.006 MW 6,000 W 6,000,000 mW 6.0e-6 GW 6.0e-9 TW Nominal Voltage (V) 240 Heat Recovery Rating (BTU/hr) 46105 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Customer Assembled Start Date 2005/07/10 Monitoring Termination Date 2005/07/21

359

Modeling distributions of stem characteristics of genetically improved loblolly pine  

E-Print Network (OSTI)

presented in this study. N de 'n th Parame s Once the parameter estimates for each plot had been computed for the chosen distribution, multiple regression techniques were utilized to relate the parameter estimates to stand characteristics. Regression... best characterized the data. Models were subsequently developed to predict the diameter, height, and volume distributions using the moment-based beta probability density function. The probability density function parameters were predicted from stand...

Janssen, Jill Elizabeth

1988-01-01T23:59:59.000Z

360

Steam generator sludge pile model boiler testing: sludge characterization. [PWR  

SciTech Connect

As part of a program to understand the thermal and hydraulic transport process that can lead to chemical concentration in sludge piles on the tubesheet in a steam generator, the chemical composition and physical properties of eight sludges and several simulants were determined. Analyses performed by emission and x-ray fluorescence spectroscopy indicated that most of the sludges were mainly composed of iron oxides, copper, and other elements at trace levels. X-ray diffraction measurements identified iron to exist in the form of magnetite and copper to exist in the form of a metal. The densities, porosity, particle size, surface area, pore size distribution, and hydrodynamic permeabilities were determined on all plant sludges and selected simulants. Wide variations were observed in the physical measurements of the different plant sludges.

Becker, L.F. Jr.; Esposito, J.N.

1981-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

Tool support for generating model-based test cases via web  

Science Journals Connector (OSTI)

Testing activities play an important role in order to obtain high quality software products. These activities become more important when considering critical software, for instance, space application software. Nowadays, there is an extensive collaboration among space institutions. So, it is more than natural to expect distributed development of software and software testing activities. Therefore, a collaborative tool hosted on the internet becomes quite useful. In this respect, WEB-PerformCharts 2.0 tool discussed in this paper moves in this direction. The tool focuses on supporting a single aspect of distributed software development: the activity of generating test cases via web. Moreover, it allows model-based test case generation by means of formal methods (formal languages statecharts and FSM) which are considered state of the art in software development. WEB-PerformCharts 2.0 can be used to generate test cases for any kind of reactive systems modelled in statecharts or FSM. We present three case studies in different application domains to demonstrate the feasibility of our tool.

Alessandro Oliveira Arantes; Valdivino Alexandre De Santiago Júnior; Nandamudi Lankalapalli Vijaykumar; Erica Ferreira De Souza

2014-01-01T23:59:59.000Z

362

Advanced Inverter Technology for High Penetration Levels of PV Generation in Distribution Systems  

SciTech Connect

This subcontract report was completed under the auspices of the NREL/SCE High-Penetration Photovoltaic (PV) Integration Project, which is co-funded by the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) and the California Solar Initiative (CSI) Research, Development, Demonstration, and Deployment (RD&D) program funded by the California Public Utility Commission (CPUC) and managed by Itron. This project is focused on modeling, quantifying, and mitigating the impacts of large utility-scale PV systems (generally 1-5 MW in size) that are interconnected to the distribution system. This report discusses the concerns utilities have when interconnecting large PV systems that interconnect using PV inverters (a specific application of frequency converters). Additionally, a number of capabilities of PV inverters are described that could be implemented to mitigate the distribution system-level impacts of high-penetration PV integration. Finally, the main issues that need to be addressed to ease the interconnection of large PV systems to the distribution system are presented.

Schauder, C.

2014-03-01T23:59:59.000Z

363

Gravitational wave generation in power-law inflationary models  

E-Print Network (OSTI)

We investigate the generation of gravitational waves in power-law inflationary models. The energy spectrum of the gravitational waves is calculated using the method of continuous Bogoliubov coefficients. We show that, by looking at the interval of frequencies between 10^(-5) and 10^5 Hz and also at the GHz range, important information can be obtained, both about the inflationary period itself and about the thermalization regime between the end of inflation and the beginning of the radiation-dominated era. We thus deem the development of gravitational wave detectors, covering the MHz/GHz range of frequencies, to be an important task for the future.

Paulo M. S; Alfredo B. Henriques

2008-06-06T23:59:59.000Z

364

A BFS-DEVS Approach for Induction Generator Non Traditional Modelling L. Capocchi  

E-Print Network (OSTI)

A BFS-DEVS Approach for Induction Generator Non Traditional Modelling L. Capocchi University particularly of an induction generator machine. Our approach is based on VHDL-AMS (Very high speed integrated-oriented model, a simplified and realistic model of an induc- tion generator machine can be defined. That model

Paris-Sud XI, Université de

365

Distributed parameter hydrologic modeling usinsg object-oriented simulation  

E-Print Network (OSTI)

DISTRIBUTED PARAMETER HYDROLOGIC MODELING USING OBJECT-ORIENTED SIMULATION A Thesis by KENNETH RAY KLANIKA Submitted to Texas A&M University in partial fulfilhnent of the requirements for the degree of MASTER OF SCIENCE Approved as to style...). The Geographic Object-Oriented Simulation Environment [GOOSE] is linked with GRASS, and is used to create the basic patch network from GRASS ASCII vector and attribute files. The model, written in Common Lisp Object System [CLOS] language, was designed around...

Klanika, Kenneth Ray

2012-06-07T23:59:59.000Z

366

LIMITED POWER BURSTS IN DISTRIBUTED MODELS OF NUCLEAR REACTORS  

E-Print Network (OSTI)

LIMITED POWER BURSTS IN DISTRIBUTED MODELS OF NUCLEAR REACTORS M. V. Bazhenov and E. F. Sabaev UDC employed for analyzing reactor dynamics. Equations of this type are used for analyzing the stability of the reactor power, etc. Among these problems the question of the boundedness of reactor power bursts

Bazhenov, Maxim

367

High Resolution PV Power Modeling for Distribution Circuit Analysis  

SciTech Connect

NREL has contracted with Clean Power Research to provide 1-minute simulation datasets of PV systems located at three high penetration distribution feeders in the service territory of Southern California Edison (SCE): Porterville, Palmdale, and Fontana, California. The resulting PV simulations will be used to separately model the electrical circuits to determine the impacts of PV on circuit operations.

Norris, B. L.; Dise, J. H.

2013-09-01T23:59:59.000Z

368

A service-oriented modeling and simulation framework for rapid development of distributed applications  

Science Journals Connector (OSTI)

The paper presents a service-oriented distributed modeling and simulation framework that supports the development and evaluation of large scale distributed systems such as network-centric and system-of-systems applications. The distinct features of the framework include a modeling and specification language, dynamic model checking for completeness and consistency, automated code generation from the specification, simulation of different architectures with a template-based platform builder, service-oriented multi-agent simulation for easy re-configuration and re-composition, formal policy specification and enforcement for dynamic verification, and dynamic analyses for evaluation and monitoring. The framework and most of the tools reported in this paper have been implemented and applied in several industrial projects. This paper presents the design principles, user interfaces, its runtime infrastructure, and the experiment results on its performance.

W.T. Tsai; Chun Fan; Yinong Chen; Ray Paul

2006-01-01T23:59:59.000Z

369

Central power generation versus distributed generation e An air quality assessment in the South Coast Air Basin of California  

E-Print Network (OSTI)

., Suite 200, San Francisco, CA 94111, USA c Advanced Power and Energy Program, Department of Mechanical obstacles to transmission line additions may force even central power generation back into air basins by the year 2020. The intermittent nature of renewable sources like wind and solar power may require

Dabdub, Donald

370

A MILP model for optimising multi-service portfolios of distributed energy storage  

Science Journals Connector (OSTI)

Abstract Energy storage has the potential to provide multiple services to several sectors in electricity industry and thus support activities related to generation, network and system operation. Hence aggregating the value delivered by storage to these sectors is paramount for promoting its efficient deployment in the near future, which will provide the level of flexibility needed to deal with the envisaged high renewables share and the increase in peak demand driven by transport and heating electrification. In this context, we develop a Mixed Integer Linear Programming (MILP) model to schedule operation of distributed storage by coordinating provision of a range of system services which are rewarded at different market prices. The model maximises distributed storages net profit while providing distribution network congestion management, energy price arbitrage and various reserve and frequency regulation services through both active and reactive power control. We demonstrate benefits associated with the coordination of these services and its impacts on commercial strategies to determine optimal multi-service portfolios in the long term. We also demonstrate the value of reactive power control to support not only distribution network congestion management, but also efficient trading of energy and balancing services which are usually treated through active power-only control. In addition, we use the model to price the service of distribution network congestion management and propose an efficient investment policy to upgrade distribution network capacity in the presence of distributed storage. Finally, several case studies under current market conditions in Great Britain (GB) demonstrate that distributed storage revenues associated with frequency control services are significantly more profitable.

Rodrigo Moreno; Roberto Moreira; Goran Strbac

2014-01-01T23:59:59.000Z

371

Production and maintenance planning for electricity generators: modeling and application to Indian power systems  

E-Print Network (OSTI)

Production and maintenance planning for electricity generators: modeling and application to Indian power systems Debabrata Chattopadhyay Department of Management, University of Canterbury, Private Bag describes the development of an optimization model to perform the fuel supply, electricity generation

Dragoti-?ela, Eranda

372

On-Site Generation Simulation with EnergyPlus for Commercial Buildings  

E-Print Network (OSTI)

L ABORATORY On-Site Generation Simulation with EnergyPlusemployer. On-Site Generation Simulation with EnergyPlus forin modeling distributed generation (DG), including DG with

Stadler, Michael; Firestone, Ryan; Curtil, Dimitri; Marnay, Chris

2006-01-01T23:59:59.000Z

373

Reactive Transport Modeling of Acid Gas Generation and Condensation  

SciTech Connect

Pulvirenti et al. (2004) recently conducted a laboratory evaporation/condensation experiment on a synthetic solution of primarily calcium chloride. This solution represents one potential type of evaporated pore water at Yucca Mountain, Nevada, a site proposed for geologic storage of high-level nuclear waste. These authors reported that boiling this solution to near dryness (a concentration factor >75,000 relative to actual pore waters) leads to the generation of acid condensate (pH 4.5) presumably due to volatilization of HCl (and minor HF and/or HNO{sub 3}). To investigate the various processes taking place, including boiling, gas transport, and condensation, their experiment was simulated by modifying an existing multicomponent and multiphase reactive transport code (TOUGHREACT). This code was extended with a Pitzer ion-interaction model to deal with high ionic strength. The model of the experiment was set-up to capture the observed increase in boiling temperature (143 C at {approx}1 bar) resulting from high concentrations of dissolved salts (up to 8 m CaCl{sub 2}). The computed HCI fugacity ({approx} 10{sup -4} bars) generated by boiling under these conditions is not sufficient to lower the pH of the condensate (cooled to 80 and 25 C) down to observed values unless the H{sub 2}O mass fraction in gas is reduced below {approx}10%. This is because the condensate becomes progressively diluted by H{sub 2}O gas condensation. However, when the system is modeled to remove water vapor, the computed pH of instantaneous condensates decreases to {approx}1.7, consistent with the experiment (Figure 1). The results also show that the HCl fugacity increases, and calcite, gypsum, sylvite, halite, MgCl{sub 2}4H{sub 2}O and CaCl{sub 2} precipitate sequentially with increasing concentration factors.

G. Zhahg; N. Spycher; E. Sonnenthal; C. Steefel

2005-01-25T23:59:59.000Z

374

Optimisation of a Crossdocking Distribution Centre Simulation Model  

E-Print Network (OSTI)

This paper reports on continuing research into the modelling of an order picking process within a Crossdocking distribution centre using Simulation Optimisation. The aim of this project is to optimise a discrete event simulation model and to understand factors that affect finding its optimal performance. Our initial investigation revealed that the precision of the selected simulation output performance measure and the number of replications required for the evaluation of the optimisation objective function through simulation influences the ability of the optimisation technique. We experimented with Common Random Numbers, in order to improve the precision of our simulation output performance measure, and intended to use the number of replications utilised for this purpose as the initial number of replications for the optimisation of our Crossdocking distribution centre simulation model. Our results demonstrate that we can improve the precision of our selected simulation output performance measure value using C...

Adewunmi, Adrian

2010-01-01T23:59:59.000Z

375

Distributed Generation Study/615 kW Waukesha Packaged System | Open Energy  

Open Energy Info (EERE)

kW Waukesha Packaged System kW Waukesha Packaged System < Distributed Generation Study Jump to: navigation, search Study Location Des Plaines, Illinois Site Description Testing Laboratory Study Type Laboratory Test Technology Internal Combustion Engine Prime Mover Waukesha VGF 36GLD Heat Recovery Systems Sondex PHE-Type SL140-TM-EE-190, Sondex PHE-Type SL140-TM-EE-150, Cain UTR1-810A17.5SSP Fuel Natural Gas System Installer GTI System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 615 kW0.615 MW 615,000 W 615,000,000 mW 6.15e-4 GW 6.15e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2500000 Cooling Capacity (Refrig/Tons) 90 Origin of Controller 3rd Party Off-the-Shelf Component Integration Factory Integrated

376

Buildings Energy Data Book: 6.2 Electricity Generation, Transmission, and Distribution  

Buildings Energy Data Book (EERE)

7 7 Characteristics of New and Stock Generating Capacities, by Plant Type Total Capital Costs Size Overnight Costs (2) of Typical New Plant New Plant Type (MW) (2010 $/kW) ($2010 million) Scrubbed Coal 1300 2809 3652 Integrated Coal-Gasification Combined Cycle (IGCC) 1200 3182 3818 IGCC w/Carbon Sequestration 520 5287 2749 Conv. Gas/Oil Combined Cycle 540 967 522 Adv. Gas/Oil Combined Cycle 400 991 396 Conv. Combustion Turbine 85 961 82 Adv. Combustion Turbine 210 658 138 Fuel Cell 10 6752 68 Advanced Nuclear 2236 5275 11795 Municipal Solid Waste 50 8237 412 Conventional Hydropower (3) 500 2221 1111 Wind 100 2409 241 Stock Plant Type 2010 2015 2020 2025 2030 2035 Fossil Fuel Steam Heat Rate (Btu/kWh) Nuclear Energy Heat Rate (Btu/kWh) Note(s): Source(s): 1) Plant use of electricity is included in heat rate calculations; however, transmission and distribution losses of the electric grid are excluded.

377

Economic and sensitivity analyses of dynamic distributed generation dispatch to reduce building energy cost  

Science Journals Connector (OSTI)

Abstract The practicality of any particular distributed generation (DG) installation depends upon its ability to reduce overall energy costs. A parametric study summarizing DG performance capabilities is developed using an economic dispatch strategy that minimizes building energy costs. Various electric rate structures are considered and applied to simulate meeting various measured building demand dynamics for heat and power. A determination of whether investment in DG makes economic sense is developed using a real-time dynamic dispatch and control strategy to meet real building demand dynamics. Under the economic dispatch strategy, capacity factor is influenced by DG electrical efficiency, operations and maintenance cost, and fuel price. Under a declining block natural gas rate structure, a large local thermal demand improves DG economics. Increasing capacity for DG that produces low cost electricity increases savings, but installing further capacity beyond the average building electrical demand reduces savings. For DG that produces high cost electricity, reducing demand charges can produce savings. Heat recovery improves capacity factor and DG economics only if thermal and electrical demand is coincident and DG heat is utilized. Potential DG economic value can be improved or impaired depending upon how the utility electricity cost is determined.

Robert J. Flores; Brendan P. Shaffer; Jacob Brouwer

2014-01-01T23:59:59.000Z

378

Generation of Initial Kinetic Distributions for Simulation of Long-Pulse Charged Particle Beams with High Space-Charge intensity  

SciTech Connect

Self-consistent Vlasov-Poisson simulations of beams with high space-charge intensity often require specification of initial phase-space distributions that reflect properties of a beam that is well adapted to the transport channel--both in terms of low-order rms (envelope) properties as well as the higher-order phase-space structure. Here, we first review broad classes of kinetic distributions commonly in use as initial Vlasov distributions in simulations of unbunched or weakly bunched beams with intense space-charge fields including: the Kapchinskij-Vladimirskij (KV) equilibrium, continuous-focusing equilibria with specific detailed examples, and various non-equilibrium distributions, such as the semi-Gaussian distribution and distributions formed from specified functions of linear-field Courant-Snyder invariants. Important practical details necessary to specify these distributions in terms of usual accelerator inputs are presented in a unified format. Building on this presentation, a new class of approximate initial kinetic distributions are constructed using transformations that preserve linear-focusing single-particle Courant-Snyder invariants to map initial continuous-focusing equilibrium distributions to a form more appropriate for non-continuous focusing channels. Self-consistent particle-in-cell simulations are employed to show that the approximate initial distributions generated in this manner are better adapted to the focusing channels for beams with high space-charge intensity. This improved capability enables simulation applications that more precisely probe intrinsic stability properties and machine performance.

Lund, Steven M.; Kikuchi, Takashi; Davidson, Ronald C.

2007-04-03T23:59:59.000Z

379

Generation of initial Vlasov distributions for simulation of charged particle beams with high space-charge intensity  

SciTech Connect

Self-consistent Vlasov simulations of beams with high space-charge intensity often require specification of initial phase-space distributions that reflect properties of a beam that is well adapted to the transport channel, both in terms of low-order rms (envelope) properties as well as the higher-order phase-space structure. Here, we first review broad classes of distributions commonly in use as initial Vlasov distributions in simulations of beams with intense space-charge fields including: the Kapchinskij-Vladimirskij (KV) equilibrium, continuous-focusing equilibria with specific detailed examples, and various non-equilibrium distributions, such as the semi-Gaussian distribution and distributions formed from specified functions of linear-field Courant-Snyder invariants. Important practical details necessary to specify these distributions in terms of usual accelerator inputs are presented in a unified format. Building on this presentation, a new class of approximate initial distributions are constructed using transformations that preserve linear-focusing single-particle Courant-Snyder invariants to map initial continuous-focusing equilibrium distributions to a form more appropriate for non-continuous focusing channels. Self-consistent particle-in-cell simulations are employed to show that the approximate initial distributions generated in this manner are better adapted to the focusing channels for beams with high space-charge intensity. This improved capability enables simulation applications that more precisely probe intrinsic stability properties and machine performance.

Lund, S M; Kikuchi, T; Davidson, R C

2007-04-12T23:59:59.000Z

380

Musculoskeletal simulation model generation from MRI datasets and motion capture data  

E-Print Network (OSTI)

Musculoskeletal simulation model generation from MRI datasets and motion capture data Jérôme Schmid

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "modeling distributed generation" 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

A tightly coupled GIS and distributed hydrologic modeling framework  

Science Journals Connector (OSTI)

Abstract Distributed, physics-based hydrologic models require spatially explicit specification of parameters related to climate, geology, land-cover, soil, and topography. Extracting these parameters from national geodatabases requires intensive data processing. Furthermore, mapping these parameters to model mesh elements necessitates development of data access tools that can handle both spatial and temporal datasets. This paper presents an open-source, platform independent, tightly coupled GIS and distributed hydrologic modeling framework, \\{PIHMgis\\} (www.pihm.psu.edu), to improve model-data integration. Tight coupling is achieved through the development of an integrated user interface with an underlying shared geodata model, which improves data flow between the \\{PIHMgis\\} data processing components. The capability and effectiveness of the \\{PIHMgis\\} framework in providing functionalities for watershed delineation, domain decomposition, parameter assignment, simulation, visualization and analyses, is demonstrated through prototyping of a model simulation. The framework and the approach are applicable for watersheds of varied sizes, and offer a template for future GIS-Model integration efforts.

Gopal Bhatt; Mukesh Kumar; Christopher J. Duffy

2014-01-01T23:59:59.000Z

382

J. Phys. B: At. Mol. Opt. Phys. 29 (1996) 47714786. Printed in the UK Angular distributions of high-order harmonics generated  

E-Print Network (OSTI)

distributions of high-order harmonics generated with a femtosecond Cr:LiSrAlF6 laser. We investigate-atom response. The far-field distributions of the harmonics (11 to 41) generated in heavy rare gases are foundJ. Phys. B: At. Mol. Opt. Phys. 29 (1996) 4771­4786. Printed in the UK Angular distributions

Ditmire, Todd

383

A source function method for generation of waves on currents in Boussinesq models  

E-Print Network (OSTI)

A source function method for generation of waves on currents in Boussinesq models A. Chawlaa,*, J for the generation of waves internal to Boussinesq model grid boundaries (Wei G, Kirby JT, Sinha A. Generation of waves in Boussinesq models using a source function method. Coastal Engng 1999;36:271­299) is generalized

Kirby, James T.

384

Aspect-oriented model-driven code generation: A systematic mapping study  

Science Journals Connector (OSTI)

Context: Model-driven code generation is being increasingly applied to enhance software development from perspectives of maintainability, extensibility and reusability. However, aspect-oriented code generation from models is an area that is currently ... Keywords: Aspect-oriented software development, Code generation, Model-driven engineering, Systematic map

Abid Mehmood; Dayang N. A. Jawawi

2013-02-01T23:59:59.000Z

385

Analytical thermal model validation for Cassini radioisotope thermoelectric generator  

SciTech Connect

The Saturn-bound Cassini spacecraft is designed to rely, without precedent, on the waste heat from its three radioisotope thermoelectric generators (RTGs) to warm the propulsion module subsystem, and the RTG end dome temperature is a key determining factor of the amount of waste heat delivered. A previously validated SINDA thermal model of the RTG was the sole guide to understanding its complex thermal behavior, but displayed large discrepancies against some initial thermal development test data. A careful revalidation effort led to significant modifications and adjustments of the model, which result in a doubling of the radiative heat transfer from the heat source support assemblies to the end domes and bring up the end dome and flange temperature predictions to within 2 C of the pertinent test data. The increased inboard end dome temperature has a considerable impact on thermal control of the spacecraft central body. The validation process offers an example of physically-driven analytical model calibration with test data from not only an electrical simulator but also a nuclear-fueled flight unit, and has established the end dome temperatures of a flight RTG where no in-flight or ground-test data existed before.

Lin, E.I. [California Inst. of Tech., Pasadena, CA (United States). Jet Propulsion Lab.

1997-12-31T23:59:59.000Z

386

Multiple models decentralized coordinated control of doubly fed induction generator  

Science Journals Connector (OSTI)

Abstract In this paper, a multiple model optimal tracking control (MOTC) design method for the double fed induction generator (DFIG) using correlative measured technique is proposed. The DFIG is represented by a third-order model, where electro-magnetic transients of stator are neglected. By using the correlative measured technique, the correlative measured matrix (CMM) of wind power system is obtained firstly. Then, a nonstandard state space equation of DFIG is obtained with the correlative measured vectors (CMVs), which reflect interactions between the \\{DFIGs\\} and grid. In order to cope with nonlinearities and continuous variation in the operating points, a multiple model design method is proposed in the discrete domain. The obtained control law, synthesized by using Bayesian probability, only depends on the local measured parameters. Hence, the MOTC can be regarded as a decentralized coordinated control, which can simplify the control structure and improve the transient stability of DFIG. To illustrate the effectiveness of the proposed MOTC strategy, simulations on a hybrid wind thermal power (HWTP) system are performed. The results show that the proposed MOTC strategy can provide acceptable performance throughout the whole operating region. Comparing to the conventional PID control, transient stability, damping, and fault ride-through capability of DFIG with the proposed MOTC design method have been improved effectively.

Yu-guang Niu; Xiao-ming Li; Zhong-wei Lin; Ming-yang Li

2015-01-01T23:59:59.000Z

387

Multiphysics 3D Modelling of Ironless Permanent Magnet Generators  

Science Journals Connector (OSTI)

Abstract Analytical method is widely used for the preliminary design and optimization of electrical machines. It has short calculation time and low computational cost (cost of simulation codes and supporting hardware), but the calculate result is normally considered to be not as accurate as finite element method (FEM). On the other hand, it is time-consuming to optimize machines with FEM if the optimization is not parallelized. Parallelizing optimization requires many licenses when commercial FEM codes are used, which can be very expensive. Ironless permanent magnet generator has large diameter and small aspect ratio, therefore, multiphysics approach is expected to be used for investigating the magnetic and thermal field. To address the above challenges, this paper presents a multiphysics modelling strategy for the design and optimization of ironless permanent magnet generators. Open-source codes are used to reduce the computational cost. A design example is presented to demonstrate the detail of this design method. This approach is expected to be used in super computer in the future, so that the calculation time can be largely reduced.

Z. Zhang; S.M. Muyeen; A. Al-Durra; R. Nilssen; A. Nysveen

2014-01-01T23:59:59.000Z

388

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

389

Data Integration for the Generation of High Resolution Reservoir Models  

SciTech Connect

The goal of this three-year project was to develop a theoretical basis and practical technology for the integration of geologic, production and time-lapse seismic data in a way that makes best use of the information for reservoir description and reservoir performance predictions. The methodology and practical tools for data integration that were developed in this research project have been incorporated into computational algorithms that are feasible for large scale reservoir simulation models. As the integration of production and seismic data require calibrating geological/geostatistical models to these data sets, the main computational tool is an automatic history matching algorithm. The following specific goals were accomplished during this research. (1) We developed algorithms for calibrating the location of the boundaries of geologic facies and the distribution of rock properties so that production and time-lapse seismic data are honored. (2) We developed and implemented specific procedures for conditioning reservoir models to time-lapse seismic data. (3) We developed and implemented algorithms for the characterization of measurement errors which are needed to determine the relative weights of data when conditioning reservoir models to production and time-lapse seismic data by automatic history matching. (4) We developed and implemented algorithms for the adjustment of relative permeability curves during the history matching process. (5) We developed algorithms for production optimization which accounts for geological uncertainty within the context of closed-loop reservoir management. (6) To ensure the research results will lead to practical public tools for independent oil companies, as part of the project we built a graphical user interface for the reservoir simulator and history matching software using Visual Basic.

Albert Reynolds; Dean Oliver; Gaoming Li; Yong Zhao; Chaohui Che; Kai Zhang; Yannong Dong; Chinedu Abgalaka; Mei Han

2009-01-07T23:59:59.000Z

390

Generation of lower hybrid and whistler waves by an ion velocity ring distribution  

SciTech Connect

Using fully kinetic simulations in two and three spatial dimensions, we consider the generation and nonlinear evolution of lower hybrid waves produced by a cold ion ring velocity distribution in a low beta plasma. We show that the initial development of the instability is very similar in two and three dimensions and not significantly modified by electromagnetic effects, consistent with linear theory. At saturation, the level of electric field fluctuations is a small fraction of the background thermal energy; the electric field and corresponding density fluctuations consist of long, field-aligned striations. Energy extracted from the ring goes primarily into heating the background ions and the electrons at comparable rates. The initial growth and saturation of the magnetic components of the lower hybrid waves are related to the electric field components, consistent with linear theory. As the growing electric field fluctuations saturate, parallel propagating whistler waves develop by the interaction of two lower hybrid waves. At later times, these whistlers are replaced by longer wavelength, parallel propagating whistlers that grow through the decay of the lower hybrid fluctuations. Wave matching conditions demonstrate these conversion processes of lower hybrid waves to whistler waves. The conversion efficiency (=ratio of the whistler wave energy to the energy in the saturated lower hybrid waves) is computed and found to be significant ({approx}15%) for the parameters of the three-dimensional simulation (and even larger in the two-dimensional simulation), although when normalized in terms of the initial kinetic energy in the ring ions the overall efficiency is very small (<10{sup -4}). The results are compared with relevant linear and nonlinear theory.

Winske, D.; Daughton, W. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2012-07-15T23:59:59.000Z

391

The Sensitivity of DPF Performance to the Spatial Distribution of Ash Generated from Six Lubricant Formulations  

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

Discusses potential of DPF pressure drop reduction by optimizing the spatial distribution of ash inside DPF inlet channel

392

Validated Models for Radiation Response and Signal Generation in Scintillators: Final Report  

SciTech Connect

This Final Report presents work carried out at Pacific Northwest National Laboratory (PNNL) under the project entitled Validated Models for Radiation Response and Signal Generation in Scintillators (Project number: PL10-Scin-theor-PD2Jf) and led by Drs. Fei Gao and Sebastien N. Kerisit. This project was divided into four tasks: 1) Electronic response functions (ab initio data model) 2) Electron-hole yield, variance, and spatial distribution 3) Ab initio calculations of information carrier properties 4) Transport of electron-hole pairs and scintillation efficiency Detailed information on the results obtained in each of the four tasks is provided in this Final Report. Furthermore, published peer-reviewed articles based on the work carried under this project are included in Appendix. This work was supported by the National Nuclear Security Administration, Office of Nuclear Nonproliferation Research and Development (DNN R&D/NA-22), of the U.S. Department of Energy (DOE).

Kerisit, Sebastien N.; Gao, Fei; Xie, YuLong; Campbell, Luke W.; Van Ginhoven, Renee M.; Wang, Zhiguo; Prange, Micah P.; Wu, Dangxin

2014-12-01T23:59:59.000Z

393

Modeling of Syngas Reactions and Hydrogen Generation Over Sulfides  

SciTech Connect

The objective of the research is to analyze pathways of reactions of hydrogen with oxides of carbon over sulfides, and to predict which characteristics of the sulfide catalyst (nature of metal, defect structure) give rise to the lowest barriers toward oxygenated hydrocarbon product. Reversal of these pathways entails the generation of hydrogen, which is also proposed for study. In this first year of study, adsorption reactions of H atoms and H{sub 2} molecules with MoS{sub 2}, both in molecular and solid form, have been modeled using high-level density functional theory. The geometries and strengths of the adsorption sites are described and the methods used in the study are described. An exposed MO{sup IV} species modeled as a bent MoS{sub 2} molecule is capable of homopolar dissociative chemisorption of H{sub 2} into a dihydride S{sub 2}MoH{sub 2}. Among the periodic edge structures of hexagonal MoS{sub 2}, the (1{bar 2}11) edge is most stable but still capable of dissociating H{sub 2}, while the basal plane (0001) is not. A challenging task of theoretically accounting for weak bonding of MoS{sub 2} sheets across the Van der Waals gap has been addressed, resulting in a weak attraction of 0.028 eV/MoS{sub 2} unit, compared to the experimental value of 0.013 eV/MoS{sub 2} unit.

Kamil Klier; Jeffery A. Spirko; Michael L. Neiman

2002-09-17T23:59:59.000Z

394

Scenario generation for stochastic programming and simulation: a modelling perspective  

Science Journals Connector (OSTI)

......applications (excluding energy) is also mentioned in...the context of the `car distribution problem...formulation of the empty car distribution problem...Stochastic programming in energy. Stochastic Programming...stochastic measures and (c) alternative risk measures. These......

Nico Di Domenica; Cormac Lucas; Gautam Mitra; Patrick Valente

2009-01-01T23:59:59.000Z

395

The GGU-model and Generation of the Developmental Paradigms  

E-Print Network (OSTI)

In this brief note, certain illustrated methods for generating developmental paradigms (event sequences) are formalized and compared to previous methods.

Robert A. Herrmann

2014-02-17T23:59:59.000Z

396

Proposal for the award of a contract for the supply and maintenance of six 380 V 50 Hz diesel generators for the LEP electrical distribution system  

E-Print Network (OSTI)

Proposal for the award of a contract for the supply and maintenance of six 380 V 50 Hz diesel generators for the LEP electrical distribution system

1986-01-01T23:59:59.000Z

397

A study of small-scale energy networks of the Japanese Syowa Base in Antarctica by distributed engine generators  

Science Journals Connector (OSTI)

Abstract Fuel traffic to the Syowa Base of the South Pole is increasing from Japan, with growing research and observation occurring every year. Limits to fuel traffic and the spread of green energy utilization are topics of interest for Syowa Base; this research considers the construction of a Syowa Base small-scale energy network (Syowa Base Micro-Grid: SBMG) for the purposes of reducing fuel consumption and increasing green energy utilization. The number of engine generators, the operation plan for the batterys charge and discharge, and the introduction of an exhaust heat pump provided a means by which the load factor of the engine generator could be maintained high value from the fluctuations of green energy. This might be accomplished by modifying the main power supply of Syowa Base into a distributed power supply system rather than a conventional central power supply system. The relationship between the amount of green energy (photovoltaics and wind power generation) connected to the proposed power supply distribution and the amount of fuel consumed by the engine generators and backup boiler was clarified. Moreover, the outside temperatures, insulation levels, and wind velocity at the Syowa Base change seasonally, resulting in large changes in the SBMG operation method. Therefore, differences in the operation methods between the proposed power supply distribution system and the conventional central power supply were assessed during the summer (January), winter (July), and mid-season (October), and the resulting differences in fuel consumption were clarified.

Shinya Obara; Yuta morizane; Jorge Morel

2013-01-01T23:59:59.000Z

398

Evaluation of a spatially-distributed Thornthwaite water-balance model  

SciTech Connect

A small watershed of low relief in coastal New Hampshire was divided into hydrologic sub-areas in a geographic information system on the basis of soils, sub-basins and remotely-sensed landcover. Three variables were spatially modeled for input to 49 individual water-balances: available water content of the root zone, water input and potential evapotranspiration (PET). The individual balances were weight-summed to generate the aggregate watershed-balance, which saw 9% (48--50 mm) less annual actual-evapotranspiration (AET) compared to a lumped approach. Analysis of streamflow coefficients suggests that the spatially-distributed approach is more representative of the basin dynamics. Variation of PET by landcover accounted for the majority of the 9% AET reduction. Variation of soils played a near-negligible role. As a consequence of the above points, estimates of landcover proportions and annual PET by landcover are sufficient to correct a lumped water-balance in the Northeast. If remote sensing is used to estimate the landcover area, a sensor with a high spatial resolution is required. Finally, while the lower Thornthwaite model has conceptual limitations for distributed application, the upper Thornthwaite model is highly adaptable to distributed problems and may prove useful in many earth-system models.

Lough, J.A. (Univ. of New Hampshire, Durham, NH (United States). Complex Systems Research Center)

1993-03-01T23:59:59.000Z

399

Effective Integration of Wind-Distributed Generation to Power Grid with STATCOM  

Science Journals Connector (OSTI)

Worldwide fast depletion of conventional energy resources necessitates the implementation of renewable energy sources for generation to satisfy the growing demand. Since last decade, technological innovations and...

Surekha Manoj; P. S. Puttaswamy

2014-01-01T23:59:59.000Z

400

Connecting to the Grid: A Guide to Distributed Generation Interconnection Issues, 6th Edition, 2009  

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

This guide addresses issues relevant to all DG technologies, including net excess generation, third-party ownership, energy storage and networks

Note: This page contains sample records for the topic "modeling distributed generation" 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

Application of the distributed activation energy model to blends devolatilisation  

Science Journals Connector (OSTI)

In this study, an investigation was carried out into the thermal behaviour of coal, petcoke and their blend as a generic feedstock in combustion and IGCC plants for energy production. The samples were pyrolysed in a TG analyzer in nitrogen atmosphere (constant flow of 0.0335m/s) at several heating rates with temperatures ranging from 300 to 1223K. The distributed activation energy model was applied to study the effects of heating rates on the reactions of single solids. The results obtained were used in the calculation of curves mass loss vs. temperature at more realistic heating rates. The algorithm used to obtain the distribution of reactivities for single solids was successfully implemented to allow the prediction of blends performance.

M.V. Navarro; A. Aranda; T. Garcia; R. Murillo; A.M. Mastral

2008-01-01T23:59:59.000Z

402

Modelling fly ash generation for UK power station coals  

SciTech Connect

An in-depth characterization has been made of three UK bituminous coals and the combustion products from these coals when burned at a power station and on a range of experimental combustion facilities. The coals were chosen to represent the range of ash compositions and slagging propensities found at UK power stations. CCSEM analysis of the pulverized coals has been performed to provide quantitative data on the size and chemical composition of individual mineral occurrences, and to determine the nature of the mineral-mineral and mineral-organic associations in the pulverized fuel. In a similar way the size and chemical composition of individual fly ash particle has been determined. The mineral-mineral association information has been used to predict the effects of mineral coalescence, the dominant mineral transformation process for UK power station coals. The CCSEM information correctly identifies the types of mineral-mineral association and hence the predicted effects of coalescence. The limitations of the information are inherent in the analysis of a cross-section, but useful information for the modelling of ash generation may still be obtained.

Wigley, F.; Williamson, J. [Imperial Coll., London (United Kingdom). Dept. of Materials

1996-12-31T23:59:59.000Z

403

Optimization of a stand?alone Solar PV?Wind?DG Hybrid System for Distributed Power Generation at Sagar Island  

Science Journals Connector (OSTI)

An estimation of a stand?alone solar PV and wind hybrid system for distributed power generation has been made based on the resources available at Sagar island a remote area distant to grid operation. Optimization and sensitivity analysis has been made to evaluate the feasibility and size of the power generation unit. A comparison of the different modes of hybrid system has been studied. It has been estimated that Solar PV?Wind?DG hybrid system provides lesser per unit electricity cost. Capital investment is observed to be lesser when the system run with Wind?DG compared to Solar PV?DG.

P. C. Roy; A. Majumder; N. Chakraborty

2010-01-01T23:59:59.000Z

404

Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part I: Numerical Modeling  

E-Print Network (OSTI)

Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part I: Numerical Modeling telluride TEMs. Key words: Thermoelectric generators, waste heat recovery, automotive exhaust, skutterudites bismuth telluride are considered for thermoelectric modules (TEMs) for conversion of waste heat from

Xu, Xianfan

405

Finite element decomposition and grid generation for brain modeling and visualization  

E-Print Network (OSTI)

Numerical grid generation is used to provide a framework for brain and neuron visualization. Smoothing spline surfaces are fit to contour data to generate 3D solid model reconstruction of brain tissues. Finite element methods are then used...

Batte, David Allan

2012-06-07T23:59:59.000Z

406

3D phase-differentiated GDL microstructure generation with binder and PTFE distributions  

E-Print Network (OSTI)

December 2011 Keywords: PEM fuel cell Gas diffusion layer Stochastic generation a b s t r a c exchange membrane fuel cells (PEMFCs) are an attractive alternative for electrical power generation, partic) digital 3D micro- structures in a cost- and time-effective manner for the first time. The results

Kandlikar, Satish

407

MONTE CARLO SIMULATION MODEL OF ENERGETIC PROTON TRANSPORT THROUGH SELF-GENERATED ALFVEN WAVES  

SciTech Connect

A new Monte Carlo simulation model for the transport of energetic protons through self-generated Alfven waves is presented. The key point of the model is that, unlike the previous ones, it employs the full form (i.e., includes the dependence on the pitch-angle cosine) of the resonance condition governing the scattering of particles off Alfven waves-the process that approximates the wave-particle interactions in the framework of quasilinear theory. This allows us to model the wave-particle interactions in weak turbulence more adequately, in particular, to implement anisotropic particle scattering instead of isotropic scattering, which the previous Monte Carlo models were based on. The developed model is applied to study the transport of flare-accelerated protons in an open magnetic flux tube. Simulation results for the transport of monoenergetic protons through the spectrum of Alfven waves reveal that the anisotropic scattering leads to spatially more distributed wave growth than isotropic scattering. This result can have important implications for diffusive shock acceleration, e.g., affect the scattering mean free path of the accelerated particles in and the size of the foreshock region.

Afanasiev, A.; Vainio, R., E-mail: alexandr.afanasiev@helsinki.fi [Department of Physics, University of Helsinki (Finland)

2013-08-15T23:59:59.000Z

408

Feasible Distributed CSP Models for Scheduling Problems Miguel A. Salido, Adriana Giret  

E-Print Network (OSTI)

Feasible Distributed CSP Models for Scheduling Problems Miguel A. Salido, Adriana Giret Universidad satisfaction problem (DisCSP) is a CSP in which variables and constraints are distributed among multiple are distributed by using our model. Key words: distributed CSP, constraint satisfaction, holonic system, multi

Salido, Miguel Angel

409

Electrical faults modeling of the photovoltaic generator Wail Rezgui1  

E-Print Network (OSTI)

The productivity of photovoltaic generators is based on two main factors [1-3]: solar radiation energy which is captured by the generator and direct electrical energy resulting from the conversion of the solar radiation energy by the photovoltaic phenomena. So, the degradation of these two factors means the presence

Boyer, Edmond

410

Joint physical and numerical modeling of water distribution networks.  

SciTech Connect

This report summarizes the experimental and modeling effort undertaken to understand solute mixing in a water distribution network conducted during the last year of a 3-year project. The experimental effort involves measurement of extent of mixing within different configurations of pipe networks, measurement of dynamic mixing in a single mixing tank, and measurement of dynamic solute mixing in a combined network-tank configuration. High resolution analysis of turbulence mixing is carried out via high speed photography as well as 3D finite-volume based Large Eddy Simulation turbulence models. Macroscopic mixing rules based on flow momentum balance are also explored, and in some cases, implemented in EPANET. A new version EPANET code was developed to yield better mixing predictions. The impact of a storage tank on pipe mixing in a combined pipe-tank network during diurnal fill-and-drain cycles is assessed. Preliminary comparison between dynamic pilot data and EPANET-BAM is also reported.

Zimmerman, Adam; O'Hern, Timothy John; Orear, Leslie Jr.; Kajder, Karen C.; Webb, Stephen Walter; Cappelle, Malynda A.; Khalsa, Siri Sahib; Wright, Jerome L.; Sun, Amy Cha-Tien; Chwirka, J. Benjamin; Hartenberger, Joel David; McKenna, Sean Andrew; van Bloemen Waanders, Bart Gustaaf; McGrath, Lucas K.; Ho, Clifford Kuofei

2009-01-01T23:59:59.000Z

411

Constructing Reliable Distributed Communication Systems with CORBA  

E-Print Network (OSTI)

Constructing Reliable Distributed Communication Systems with CORBA Silvano Maffeis Douglas C Communication software and distributed services for next- generation applications must be reliable, efficient model to support reliable data- and process- oriented distributed systems that communicate through syn

Schmidt, Douglas C.

412

Modelling and Simulation of a Single Phase Grid Connected Using Photovoltaic and Battery Based Power Generation  

Science Journals Connector (OSTI)

Microgrid is a part of the power distribution system which uses renewable energy based of power generation connected to the grid system. Multi energy power generation is composed of renewable energy systems including photovoltaic, wind turbine, energy ... Keywords: Battery Storage, Inverter, Microgrid, Photovoltaic, Matlab/Simulink.

Alias Khamis; Azah Mohamed; Hussain Shareef; Afida Ayob; Mohd Shahrieel Mohd Aras

2013-11-01T23:59:59.000Z

413

Voltage distribution over capacitively coupled plasma electrode for atmospheric-pressure plasma generation  

Science Journals Connector (OSTI)

When capacitively coupled plasma (CCP) is used to generate large-area plasma, the standing wave effect becomes significant, ... which results in the hindering of the uniform plasma process such as in a plasma etc...

Mitsutoshi Shuto; Fukumi Tomino; Hiromasa Ohmi

2013-05-01T23:59:59.000Z

414

Optical and thermodynamic analysis and optimization of a novel solar concentrating system for distributed power generation.  

E-Print Network (OSTI)

??A novel central receiver power system utilizing linked-tracking heliostats is analyzed for distributed-scale concentrated solar power. Smaller linkage groupings are typically found to have a (more)

Dunham, Marc Tyler Deo

2012-01-01T23:59:59.000Z

415

Demonstrating Fuel Consumption and Emissions Reductions with Next Generation Model-Based Diesel Engine Control  

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

Presents a next generation model-based engine controller that incorporates real-time fuel efficiency optimization and tested under fully transient engine and vehicle operating conditions.

416

Modelling and verification of doubly fed induction generator (DFIG) using real time digital simulator (RTDS).  

E-Print Network (OSTI)

??This master thesis deals with Doubly Fed Induction Generator (DFIG) controller in RSCAD model. The controller in RSCAD is built and designed according to the (more)

Shafiei, Farhad

2012-01-01T23:59:59.000Z

417

Regulation and Measuring Cost-Efficiency with Panel Data Models: Application to Electricity Distribution Utilities  

Science Journals Connector (OSTI)

This paper examines the performance of panel data models in measuring cost-efficiency of electricity distribution utilities. Different cost frontier models are applied to a sample...

Mehdi Farsi; Massimo Filippini

2004-08-01T23:59:59.000Z

418

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

SciTech Connect

The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. The NGTDM is the model within the NEMS that represents the transmission, distribution, and pricing of natural gas. The model also includes representations of the end-use demand for natural gas, the production of domestic natural gas, and the availability of natural gas traded on the international market based on information received from other NEMS models. The NGTDM determines the flow of natural gas in an aggregate, domestic pipeline network, connecting domestic and foreign supply regions with 12 demand regions. The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic design, provides detail on the methodology employed, and describes the model inputs, outputs, and key assumptions. Subsequent chapters of this report provide: an overview of NGTDM; a description of the interface between the NEMS and NGTDM; an overview of the solution methodology of the NGTDM; the solution methodology for the Annual Flow Module; the solution methodology for the Distributor Tariff Module; the solution methodology for the Capacity Expansion Module; the solution methodology for the Pipeline Tariff Module; and a description of model assumptions, inputs, and outputs.

NONE

1998-01-01T23:59:59.000Z

419

Modeling of thin-film solar thermoelectric generators  

E-Print Network (OSTI)

Recent advances in solar thermoelectric generator (STEG) performance have raised their prospect as a potential technology to convert solar energy into electricity. This paper presents an analysis of thin-film STEGs. ...

Weinstein, Lee Adragon

420

Hypercharge generators in SU(7) grand unification models  

Science Journals Connector (OSTI)

We present a thorough analysis of U(1) generators in all of the nine possible symmetry-breaking patterns that reduce SU(7) down to SUc(3)SU(2)U(1). There is one allowed representation that contains three generations of leptons and at least two generations of quarks and satisfies anomaly freedom, reality under SUc(3) and Uem(1), and complexity under SUc(3)SU(2)U(1). In addition, three other representations, two having only one and two of the three lepton-quark generations complex with respect to SUc(3)SU(2)U(1), and the other having fractionally charged color singlets in pairs embedded in the fundamental representation [7], are also analyzed for completeness.

Kyungsik Kang and In-Gyu Koh

1982-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

A KINETIC MODEL OF SOLAR WIND GENERATION BY OBLIQUE ION-CYCLOTRON WAVES  

SciTech Connect

The fast solar wind is generated by extended perpendicular ion heating in coronal holes, but the kinetic mechanism responsible for this heating has not been determined. One long-standing possibility is the resonant-cyclotron dissipation of ion-cyclotron waves, replenished from a turbulent cascade of interacting counter-propagating Alfven waves. We present results of a kinetic model for proton heating by the quasilinear resonant-cyclotron wave-particle interaction in a coronal hole. The resonant wave spectrum is taken as a power law in wavenumber, uniformly distributed in propagation direction between 0 deg. and 60 deg. with respect to the large-scale radial magnetic field. We obtain the steady-state solution of the kinetic guiding-center equation for the proton distribution in an expanding coronal hole, including the effects of large-scale forces of gravity, charge-separation electric field, Alfven wave ponderomotive force, and mirror force, along with the small-scale scattering from the wave dissipation. We find that plausible wave intensities can yield reasonable flow speeds and temperatures in the heliocentric radial range between 2 and 6 solar radii. We address the claim in earlier work that dissipation of parallel-propagating ion-cyclotron waves cannot provide enough acceleration and show that claim to be incorrect. We find that the combined action of the large-scale forces and the resonant-cyclotron scattering produces proton distribution functions with a characteristic structure: compressed in the sunward half of velocity space with a high-density shell separate from the origin, and relatively expanded in the anti-sunward half of velocity space. We suggest that qualitatively similar proton distributions would result from the kinetic evolution of any sufficiently effective perpendicular heating mechanism operating in an expanding coronal hole.

Isenberg, Philip A.; Vasquez, Bernard J. [Institute for the Study of Earth, Oceans and Space and Department of Physics, University of New Hampshire, Durham, NH 03824 (United States)

2011-04-20T23:59:59.000Z

422

Utilizing Electric Vehicles to Assist Integration of Large Penetrations of Distributed Photovoltaic Generation Capacity  

SciTech Connect

Executive Summary Introduction and Motivation This analysis provides the first insights into the leveraging potential of distributed photovoltaic (PV) technologies on rooftop and electric vehicle (EV) charging. Either of the two technologies by themselves - at some high penetrations may cause some voltage control challenges or overloading problems, respectively. But when combined, there at least intuitively could be synergistic effects, whereby one technology mitigates the negative impacts of the other. High penetration of EV charging may overload existing distribution system components, most prominently the secondary transformer. If PV technology is installed at residential premises or anywhere downstream of the secondary transformer, it will provide another electricity source thus, relieving the loading on the transformers. Another synergetic or mitigating effect could be envisioned when high PV penetration reverts the power flow upward in the distribution system (from the homes upstream into the distribution system). Protection schemes may then no longer work and voltage violation (exceeding the voltage upper limited of the ANSI voltage range) may occur. In this particular situation, EV charging could absorb the electricity from the PV, such that the reversal of power flow can be reduced or alleviated. Given these potential mutual synergistic behaviors of PV and EV technologies, this project attempted to quantify the benefits of combining the two technologies. Furthermore, of interest was how advanced EV control strategies may influence the outcome of the synergy between EV charging and distributed PV installations. Particularly, Californian utility companies with high penetration of the distributed PV technology, who have experienced voltage control problems, are interested how intelligent EV charging could support or affect the voltage control

Tuffner, Francis K.; Chassin, Forrest S.; Kintner-Meyer, Michael CW; Gowri, Krishnan

2012-11-30T23:59:59.000Z

423

Dynamically generated electric charge distributions in Abelian projected SU(2) lattice gauge theories  

E-Print Network (OSTI)

We show in the maximal Abelian gauge the dynamical electric charge density generated by the coset fields, gauge fixing and ghosts shows antiscreening as in the case of the non-Abelian charge. We verify that with the completion of the ghost term all contributions to flux are accounted for in an exact lattice Ehrenfest relation.

A. Hart; R. W. Haymaker; Y. Sasai

1998-08-28T23:59:59.000Z

424

Self-triggered Communication Enabled Control of Distributed Generation in Microgrids  

E-Print Network (OSTI)

Tahir Member, IEEE Dept. of Elect. Eng. and Al-Khwarizmi Institute of Comp. Science University. System reliability for secondary control in microgrids can be improved by using a distributed cooperative control approach. For realizing the cooperative control of multiple DGs in smart-grid, a multi-agent based

Mazumder, Sudip K.

425

Contention Modeling for Multithreaded Distributed Shared Memory Machines: The Cray XMT  

SciTech Connect

Distributed Shared Memory (DSM) machines are a wide class of multi-processor computing systems where a large virtually-shared address space is mapped on a network of physically distributed memories. High memory latency and network contention are two of the main factors that limit performance scaling of such architectures. Modern high-performance computing DSM systems have evolved toward exploitation of massive hardware multi-threading and fine-grained memory hashing to tolerate irregular latencies, avoid network hot-spots and enable high scaling. In order to model the performance of such large-scale machines, parallel simulation has been proved to be a promising approach to achieve good accuracy in reasonable times. One of the most critical factors in solving the simulation speed-accuracy trade-off is network modeling. The Cray XMT is a massively multi-threaded supercomputing architecture that belongs to the DSM class, since it implements a globally-shared address space abstraction on top of a physically distributed memory substrate. In this paper, we discuss the development of a contention-aware network model intended to be integrated in a full-system XMT simulator. We start by measuring the effects of network contention in a 128-processor XMT machine and then investigate the trade-off that exists between simulation accuracy and speed, by comparing three network models which operate at different levels of accuracy. The comparison and model validation is performed by executing a string-matching algorithm on the full-system simulator and on the XMT, using three datasets that generate noticeably different contention patterns.

Secchi, Simone; Tumeo, Antonino; Villa, Oreste

2011-07-27T23:59:59.000Z

426

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

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

generator model Page: << < 1 2 3 4 5 > >> 1 The Way Forward2 Authors: David Rind, NASA GISS; Ralph A. Kahn, NASA GSFC; Mian Chin, NASA3 Summary: assistance from models, are...

427

Self-consistent modeling of radio-frequency plasma generation in stellarators  

Science Journals Connector (OSTI)

A self-consistent model of radio-frequency (RF) plasma generation in stellarators in the ion cyclotron frequency range is described. The model includes equations ... of electron energy balance takes into account ...

V. E. Moiseenko; Yu. S. Stadnik; A. I. Lysoivan; V. B. Korovin

2013-11-01T23:59:59.000Z

428

Generalized Additive Models versus Linear Regression in Generating Probabilistic MOS Forecasts of Aviation Weather Parameters  

Science Journals Connector (OSTI)

The skill of probabilistic Model Output Statistics forecasts generated from Generalized Additive Models (GAM) is compared to that of traditional multiple linear regression techniques. Unlike linear regression, where each predictor term in the ...

Robert L. Vislocky; J. Michael Fritsch

1995-12-01T23:59:59.000Z

429

Landscape Models and Explanation in Landscape Ecology--A Space for Generative Landscape Science?  

E-Print Network (OSTI)

Landscape Models and Explanation in Landscape Ecology-- A Space for Generative Landscape Science in landscape ecology. We discuss the dual modeling goals of prediction and explanation and identify challenges landscape science is offered as a complementaryapproachtoexplanation, combiningmodelsofcandidateprocesses

Brown, Daniel G.

430

Automatic Sensitivity Analysis of DAE-systems Generated from Equation-Based Modeling Languages  

Science Journals Connector (OSTI)

This paper aims at sensitivity analysis of differential algebraic equation (DAE) systems, generated from mathematical models, specified in equation-based modeling languages. Modern simulation languages (e.g. M...

Atya Elsheikh; Wolfgang Wiechert

2008-01-01T23:59:59.000Z

431

Generated using version 3.0 of the official AMS LATEX template Model study of waves generated by convection with direct  

E-Print Network (OSTI)

Generated using version 3.0 of the official AMS LATEX template Model study of waves generated circulation, structure and stability on a global scale. Gravity waves can be generated by convection, the authors examine an event on January 12, 2003, when convective waves were clearly generated by a period

Alexander, M. Joan

432

Cognitive Effects of Physical Models in Engineering Idea Generation  

E-Print Network (OSTI)

of controlled lab studies and qualitative studies is adopted to achieve said goal. The results from the controlled studies show that physical models supplement designers erroneous mental models and help them to come up with more ideas satisfying the problem...

Cherickal Viswanathan, Vimal 1983-

2012-08-17T23:59:59.000Z

433

Efficient estimation and ensemble generation in climate modelling  

Science Journals Connector (OSTI)

...conjunction with computationally cheap energy-balance Earth system models (Andronova Schlesinger 2001; Forest et al. 2002...Team. 2006 Multiobjective tuning of grid-enabled earth system models using a non-dominated sorting genetic algorithm...

2007-01-01T23:59:59.000Z

434

Multi-physics modeling of thermoelectric generators for waste...  

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

modeling Material properties and interface information (Experiments) Fluid temperature, Heat transfer coefficient & Pressure drop System temperature & Electric power Thermal...

435

Fault Models and Test Generation for Hardware-Software Covalidation Ian G. Harris  

E-Print Network (OSTI)

use of hardware-software systems in cost-critical and life-critical applications has led to heightenedFault Models and Test Generation for Hardware-Software Covalidation £ Ian G. Harris Department: Hardware-Software Covalidation, Design Validation, Test Generation, Fault Models Abstract The increasing

Harris, Ian G.

436

ON THE MODELLING OF TSUNAMI GENERATION AND TSUNAMI FREDERIC DIAS  

E-Print Network (OSTI)

process. We also consider an unusual source for tsunami generation: the sinking of a cruise ship. Then we is sometimes less devastating than the subsequent waves. A resonance effect can boost the waves that come later. Tsunami inundation 13 3.1. Run-up amplification 14 3.2. Whirlpool like effect in tsunamis 14 4. Conclusion

Paris-Sud XI, Université de

437

Scenario generation for stochastic programming and simulation: a modelling perspective  

Science Journals Connector (OSTI)

......was built to aid supply chain planning and management in the automobile sector (Escudero et al. 1999a) as well as in the pharmaceutical...SANCHEZ, M. (1998b) SEGEM: a simulation approach for electric generation management. IEEE Trans. Power Syst., 13, 738748......

Nico Di Domenica; Cormac Lucas; Gautam Mitra; Patrick Valente

2009-01-01T23:59:59.000Z

438

A turbulence model for buoyant flows based on vorticity generation.  

SciTech Connect

A turbulence model for buoyant flows has been developed in the context of a k-{var_epsilon} turbulence modeling approach. A production term is added to the turbulent kinetic energy equation based on dimensional reasoning using an appropriate time scale for buoyancy-induced turbulence taken from the vorticity conservation equation. The resulting turbulence model is calibrated against far field helium-air spread rate data, and validated with near source, strongly buoyant helium plume data sets. This model is more numerically stable and gives better predictions over a much broader range of mesh densities than the standard k-{var_epsilon} model for these strongly buoyant flows.

Domino, Stefan Paul; Nicolette, Vernon F.; O'Hern, Timothy John; Tieszen, Sheldon R.; Black, Amalia Rebecca

2005-10-01T23:59:59.000Z

439

Temperature and thermal stress distributions for the HFIR permanent reflector generated by nuclear heating  

SciTech Connect

The beryllium permanent reflector of the High Flux Isotope Reactor has the main functions for slowing down and reflecting the neutrons and housing the experimental facilities. The reflector is heated as a result of the nuclear reaction. Heat is removed mainly by the cooling water passing through the densely distributed coolant holes along the vertical or axial direction of the reflector. The reflector neutronic distribution and its heating rate are calculated by J.C. Gehin of the Oak Ridge National Laboratory by applying the Monte Carlo Code MCNP. The heat transfer boundary conditions along several reflector interfaces are estimated to remove additional heat from the reflector. The present paper is to report the calculation results of the temperature and the thermal stress distributions of the permanent reflector by applying the computer aided design code I-DEAS and the finite element code ABAQUS. The present calculation is to estimate the high stress areas as a result of the new beam tube cutouts along the horizontal mid-plane of the reflector of the recent reactor upgrade project. These high stresses were not able to be calculated in the preliminary design analysis in earlier 60`s. The heat transfer boundary conditions are used in this redesigned calculation. The material constants and the acceptance criteria for the allowable stresses are mainly based on that assumed in the preliminary design report.

Chang, S.J.

1998-04-01T23:59:59.000Z

440

Creol: a type-safe object-oriented model for distributed concurrent systems  

Science Journals Connector (OSTI)

Object-oriented distributed computing is becoming increasingly important for critical infrastructure in society. In standard object-oriented models, objects synchronize on method calls. These models may be criticized in the distributed setting for their ... Keywords: distributed object-oriented systems, type and effect system, type soundness

Einar Broch Johnsen; Olaf Owe; Ingrid Chieh Yu

2006-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

On some complementary trends in Model transformation generation  

E-Print Network (OSTI)

CIM-PIM-PSM and variants software migration metamodel version changes model building, merging) Close problematics with experience Web semantic, ontology alignment, schema matching techniques Database

Paris-Sud XI, Université de

442

Automatic Generation of Transaction-Level Models for Rapid Design Space Exploration  

E-Print Network (OSTI)

Automatic Generation of Transaction-Level Models for Rapid Design Space Exploration Dongwan Shin space, designers use models which are evaluated through simulation. Typically, these models are manually accuracies, models are written at low levels of abstraction with resulting slow simulation performance

California at Irvine, University of

443

Distributively generated near rings on the dihedral group of order eight  

E-Print Network (OSTI)

DISTRIBHvlri "LY GEZERKTED NEZR RINGS ON THE DIH ', DRAL GRODP OP ORDER EIGHT A Thesis INRy LING VILLHITE Submitted to the Gra~', . ate ' allege of Tezas jan& Rnid e'r, si!, y in Parti "1 fulfillment of the reGui rom nt fo- the eSree o MASTER... GP BC. E. ":lOE December le~70 Major Subject: llathematics DISTRIBUTIVELY GMWRA ED NEAR RINGE ON THE DIHED tAL GROUP OF ORDER EIGHT A Thesis NARY LYNN VILLHITE Approved as to st'yle and. content 'by: ax man. of Gom; i ee , member A &. ~;g...

Willhite, Mary Lynn

1970-01-01T23:59:59.000Z

444

MeTAGeM-Trace: Improving trace generation in model transformation by leveraging the role of transformation models  

Science Journals Connector (OSTI)

Abstract In the context of Model-Driven Engineering (MDE), generation of traces can be automated using the implicit traceability relationships contained in any model transformation. Besides, if transformations are developed adopting a Model-Driven Engineering (MDE) approach, i.e. promoting the role of models and the level of automation, model transformation will benefit from the promised advantages of MDE in terms of less costly software development while reducing the inherent complexity of coding model transformations. To put these ideas into practice, this work introduces MeTAGeM-Trace, the first prototype of an EMF-based toolkit for the MDD of model-to-model transformations which supports trace generation, i.e. it allows developing model transformations that produce not only the corresponding target models, but also a trace model between the elements of the source and target models involved in the transformation.

lvaro Jimnez; Juan M. Vara; Vernica A. Bollati; Esperanza Marcos

2015-01-01T23:59:59.000Z

445

On-the-fly generation of differential resonance scattering probability distribution functions for Monte Carlo codes  

SciTech Connect

Current Monte Carlo codes use one of three models to model neutron scattering in the epithermal energy range: (1) the asymptotic scattering model, (2) the free gas scattering model, or (3) the S({alpha},{beta}) model, depending on the neutron energy and the specific Monte Carlo code. The free gas scattering model assumes the scattering cross section is constant over the neutron energy range, which is usually a good approximation for light nuclei, but not for heavy nuclei where the scattering cross section may have several resonances in the epithermal region. Several researchers in the field have shown that using the free gas scattering model in the vicinity of the resonances in the lower epithermal range can under-predict resonance absorption due to the up-scattering phenomenon. Existing methods all involve performing the collision analysis in the center-of-mass frame, followed by a conversion back to the laboratory frame. In this paper, we will present a new sampling methodology that (1) accounts for the energy-dependent scattering cross sections in the collision analysis and (2) acts in the laboratory frame, avoiding the conversion to the center-of-mass frame. The energy dependence of the scattering cross section was modeled with even-ordered polynomials to approximate the scattering cross section in Blackshaw's equations for the moments of the differential scattering PDFs. These moments were used to sample the outgoing neutron speed and angle in the laboratory frame on-the-fly during the random walk of the neutron. Results for criticality studies on fuel pin and fuel assembly calculations using these methods showed very close comparison to results using the reference Doppler-broadened rejection correction (DBRC) scheme. (authors)

Sunny, E. E.; Martin, W. R. [University of Michigan, 2355 Bonisteel Boulevard, Ann Arbor MI 48109 (United States)

2013-07-01T23:59:59.000Z

446

Scenario generation for stochastic programming and simulation: a modelling perspective  

Science Journals Connector (OSTI)

......models Artificial Neural gas Neural networks Supply...Paper 01-04. Nicosia, Cyprus: HERMES Center of Excellence...Management, University of Cyprus. JORDAN, W. & TURNQUIST...1991) A "neural-gas" network learns topologies...A decision model for natural oil buying policy under......

Nico Di Domenica; Cormac Lucas; Gautam Mitra; Patrick Valente

2009-01-01T23:59:59.000Z

447

Generating and Analyzing Symbolic Traces of Simulink/Stateflow Models  

E-Print Network (OSTI)

implies that the performance of the analysis would degrade rapidly with the increasing size of the model that enables the development, testing, and rapid prototyping of control software, supported by automated code of these models is loosely defined in terms of a simulation engine. The lack of clearly specified semantics makes

Kanade, Aditya

448

Generating and Analyzing Symbolic Traces of Simulink/Stateflow Models  

E-Print Network (OSTI)

of the model and the simulation traces. We propose a new represen­ tation, called the bounded vertex that enables the development, testing, and rapid prototyping of control software, supported by automated code, the semantics of these models is loosely defined in terms of a simulation engine. The lack of clearly specified

Sankaranarayanan, Sriram

449

Modeling Rules of Engagement in Computer Generated Forces Rick Evertsz  

E-Print Network (OSTI)

approach, ROE are defined as meta-knowledge that act as a constraint on the tactical choices selected. A key problem in modeling how military personnel behave during a conflict is to understand how ROE does not model the following factors: · ROE, · how a person selects a tactic within the scope

Ritter, Frank

450

Power System Generation and Inter-Connection Planning Model (SUPER) | Open  

Open Energy Info (EERE)

Power System Generation and Inter-Connection Planning Model (SUPER) Power System Generation and Inter-Connection Planning Model (SUPER) Jump to: navigation, search Tool Summary Name: Power System Generation and Inter-Connection Planning Model (SUPER) Agency/Company /Organization: Latin American Energy Organization Sector: Energy Focus Area: Renewable Energy, Hydro Topics: Resource assessment Resource Type: Software/modeling tools Website: www.olade.org/superEn.html References: SUPER website [1] "This model is useful for multi-year electricity system planning studies, making it possible to analyze, optimize, simulate and develop hydrothermal power system expansion plans." References ↑ "SUPER website" Retrieved from "http://en.openei.org/w/index.php?title=Power_System_Generation_and_Inter-Connection_Planning_Model_(SUPER)&oldid=329

451

Vortex and gap generation in gauge models of graphene  

E-Print Network (OSTI)

Effective quantum field theoretical continuum models for graphene are investigated. The models include a complex scalar field and a vector gauge field. Different gauge theories are considered and their gap patterns for the scalar, vector, and fermion excitations are investigated. Different gauge groups lead to different relations between the gaps, which can be used to experimentally distinguish the gauge theories. In this class of models the fermionic gap is a dynamic quantity. The finite-energy vortex solutions of the gauge models have the flux of the "magnetic field" quantized, making the Bohm-Aharonov effect active even when external electromagnetic fields are absent. The flux comes proportional to the scalar field angular momentum quantum number. The zero modes of the Dirac equation show that the gauge models considered here are compatible with fractionalization.

O. Oliveira; C. E. Cordeiro; A. Delfino; W. de Paula; T. Frederico

2010-12-21T23:59:59.000Z

452

Abstract 3714: Trametinib (Mekinist TM) has limited brain distribution in the mouse model  

Science Journals Connector (OSTI)

...Trametinib (Mekinist TM) has limited brain distribution in the mouse model Shruthi...molecularly-targeted agents into the brain. The discovery of focal BRAF mutations...vemurafenib and dabrafenib) have limited brain distribution due to active efflux at the...

Shruthi Vaidhyanathan; Rajendar K. Mittapalli; Daniel J. Ma; Mark A. Schroeder; Jann N. Sarkaria; William F. Elmquist

2014-10-01T23:59:59.000Z

453

A Chemical Class-Based Approach to Predictive Model Generation  

Science Journals Connector (OSTI)

The table shows, for each trial, the number of molecules used in the classification, the number of classes generated, the number of molecules successfully classified (i.e., the number that do not become singletons), the average number of molecules per class, and the class redundancy (the number of classes, on average, in which each molecule appears). ... Given the greater apparent reliability of the reduced-default versus the full-default results, the class-based approach appears even more favorable. ... rules that classify objects into similar categories or, in this case, structures into groups of mols. ...

David W. Miller

2003-01-24T23:59:59.000Z

454

Natural gas transmission and distribution model of the National Energy Modeling System  

SciTech Connect

The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. NEMS was developed in the Office of Integrated Analysis and Forecasting of the Energy Information Administration (EIA). NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the EIA and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. From 1982 through 1993, the Intermediate Future Forecasting System (IFFS) was used by the EIA for its analyses, and the Gas Analysis Modeling System (GAMS) was used within IFFS to represent natural gas markets. Prior to 1982, the Midterm Energy Forecasting System (MEFS), also referred to as the Project Independence Evaluation System (PIES), was employed. NEMS was developed to enhance and update EIA`s modeling capability by internally incorporating models of energy markets that had previously been analyzed off-line. In addition, greater structural detail in NEMS permits the analysis of a broader range of energy issues. The time horizon of NEMS is the midterm period (i.e., through 2015). In order to represent the regional differences in energy markets, the component models of NEMS function at regional levels appropriate for the markets represented, with subsequent aggregation/disaggregation to the Census Division level for reporting purposes.

NONE

1997-02-01T23:59:59.000Z

455

A new method for power generation and distribution in outer space  

SciTech Connect

The power system is a major component of a space system's size, mass, technical complexity, and hence, cost. To date, space systems include the energy source as an integral part of the mission satellite. Potentially significant benefit could be realized by separating the energy source from the end-use system and transmitting the power via an energy beam (power beaming) (Coomes et al., 1989). This concept parallels the terrestrial central generating station and transmission grid. In this summary, the system components required for power beaming implementation are outlined and applied to a satellite for power beaming implementation are outlined and applied to a satellite constellation to demonstrate the feasibility of implementing power beaming in the next 20 years. 5 refs., 1 fig., 3 tabs.

Bamberger, J.A.

1989-09-01T23:59:59.000Z

456

Accurate resistive bridge fault modeling, simulation, and test generation  

E-Print Network (OSTI)

Resistive bridging faults in CMOS combinational circuits are studied in this work. Bridging faults are modeled using HSPICE circuit simulation of the various types of bridging faults that can occur in CMOS combinational circuits. The results...

Sar-Dessai, Vijay Ramesh

2012-06-07T23:59:59.000Z

457

On the Predictive Uncertainty of a Distributed Hydrologic Model  

E-Print Network (OSTI)

We use models to simulate the real world mainly for prediction purposes. However, since any model is a simplification of reality, there remains a great deal of uncertainty even after the calibration of model parameters. The models identifiability...

Cho, Huidae

2009-05-15T23:59:59.000Z

458

The modelling of biochemical-thermal coupling effect on gas generation and transport in MSW landfill  

Science Journals Connector (OSTI)

The landfill gas generation was investigated based on the theories of the thermodynamics, microbial dynamics and chemical dynamics. The coupling model was developed for describing the gas transport and heat release. And the relationship between the gas generation rate and the temperature was proposed. The parameters in the gas generation model were obtained by bioreactor test in order to evaluate the volume of gas production of the Erfeishan landfill in China. The simulation results shown that the operating life of the landfill will be overestimated if the model does not consider the thermal effect during degradation of the solid substrate.

Liu Lei; Liang Bing; Xue Qiang; Zhao Ying; Yang Chun

2011-01-01T23:59:59.000Z

459

Modeling the reactive inorganic solute distributions in the groundwater flow systems of the Hanford Site using inverse analytical modeling techniques.  

E-Print Network (OSTI)

??Inverse analytical techniques were used to model solute distributions and determine transport parameters for two flow systems in the Yakima Basalt subgroup at the Hanford (more)

Adamski, Mark Robert

2012-01-01T23:59:59.000Z

460

Waste generation process modeling and analysis for fuel reprocessing technologies  

SciTech Connect

Estimates of electric power generation requirements for the next century, even when taking the most conservative tack, indicate that the United States will have to increase its production capacity significantly. If the country determines that nuclear power will not be a significant component of this production capacity, the nuclear industry will have to die, as maintaining a small nuclear component will not be justifiable. However, if nuclear power is to be a significant component, it will probably require some form of reprocessing technology. The once-through fuel cycle is only feasible for a relatively small number of nuclear power plants. If we are maintaining several hundred reactors, the once-through fuel cycle is more expensive and ethically questionable.

Kornreich, D. E. (Drew E.); Koehler, A. C. (Andrew C.); Farman, Richard F.

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling distributed generation" 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

Simulated movement of musculature in a computer generated model  

E-Print Network (OSTI)

properly when animated. The documentation of this process will be presented as a web-based tutorial for students and modelers. 1. 3 MOTIVATION: WHERE TO BUILD-IN MUSCLE DEFORMATION When building a character one must distinguish the areas where muscle... IMPORTANCE OF PROCESS The process required in making the steps to build parts of a character that exhibit muscle deformation will be documented in a web based tutorial. The tutorial will provide students and 3D modelers alike a template to discover...

Ten Wolde, Kristian Bernard

2000-01-01T23:59:59.000Z

462

Buildings Energy Data Book: 6.2 Electricity Generation, Transmission, and Distribution  

Buildings Energy Data Book (EERE)

9 9 2009 Peak Load and Capacity Margin, Summer and Winter by NERC Region (MW) NERC Region Capacity Margin Capacity Margin TRE 16.7% 19.1% FRCC 6.0% 2.0% MRO (U.S.) 24.6% 26.8% NPCC (U.S.) 29.1% 43.2% RFC 25.2% 33.3% SERC 24.6% 26.2% SPP 16.4% 34.6% WECC 19.4% 29.6% U.S. TOTAL 22.2% 28.5% Note(s): Source(s): 128,245 109,565 725,958 668,818 1) Summer Demand includes the months of June, July, August, and September. 2) Winter Demand includes December of the previous year and January-March of the current year. 3) Capacity Margin is the amount of unused available capability of an electric power system at peak load as a percentage of net capacity resources. Net Capacity Resources: Utility- and IPP-owned generating capacity that is existing or in various stages of planning or construction, less inoperable capacity, plus planned capacity purchases from other resources, less planned

463

Buildings Energy Data Book: 6.2 Electricity Generation, Transmission, and Distribution  

Buildings Energy Data Book (EERE)

3 3 Electric Capacity Factors, by Year and Fuel Type (1) Conventional Coal Petroleum Natural Gas Nuclear Hydroelectric Solar/PV Wind Total 1990 59% 17% 23% 66% 45% 13% 18% 46% 1991 59% 18% 22% 70% 43% 17% 18% 46% 1992 59% 14% 22% 71% 38% 13% 18% 45% 1993 61% 16% 21% 70% 41% 16% 19% 46% 1994 61% 15% 22% 74% 38% 17% 23% 46% 1995 62% 11% 22% 77% 45% 17% 21% 47% 1996 65% 11% 19% 76% 52% 18% 22% 48% 1997 66% 13% 20% 72% 51% 17% 23% 48% 1998 67% 20% 23% 79% 47% 17% 20% 50% 1999 67% 20% 22% 85% 46% 15% 23% 51% 2000 70% 18% 22% 88% 40% 15% 27% 51% 2001 68% 20% 21% 89% 31% 16% 20% 48% 2002 69% 16% 18% 90% 38% 16% 27% 46% 2003 71% 21% 14% 88% 40% 15% 21% 44% 2004 71% 22% 16% 90% 39% 17% 25% 44% 2005 72% 22% 17% 89% 40% 15% 23% 45% 2006 71% 11% 19% 90% 42% 14% 27% 45% 2007 72% 12% 21% 92% 36% 14% 24% 45% 2008 71% 8% 20% 91% 37% 18% 26% 44% 2009 63% 7% 21% 90% 40% 16% 25% 42% 2010 (2) 65% 6% 23% 91% 37% 17% 29% 43% Note(s): Source(s) 1) EIA defines capacity factor to be "the ratio of the electrical energy produced by a generating unit for the period of time considered to the

464

Is the Weibull distribution really suited for wind statistics modeling and wind power evaluation?  

E-Print Network (OSTI)

Wind speed statistics is generally modeled using the Weibull distribution. This distribution is convenient since it fully characterizes analytically with only two parameters (the shape and scale parameters) the shape of distribution and the different moments of the wind speed (mean, standard deviation, skewness and kurtosis). This distribution is broadly used in the wind energy sector to produce maps of wind energy potential. However, the Weibull distribution is based on empirical rather than physical justification and might display strong limitations for its applications. The philosophy of this article is based on the modeling of the wind components instead of the wind speed itself. This provides more physical insights on the validity domain of the Weibull distribution as a possible relevant model for wind statistics and the quantification of the error made by using such a distribution. We thereby propose alternative expressions of more suited wind speed distribution.

Drobinski, Philippe

2012-01-01T23:59:59.000Z

465

Memory consistency models for high performance distributed computing  

E-Print Network (OSTI)

This thesis develops a mathematical framework for specifying the consistency guarantees of high performance distributed shared memory multiprocessors. This framework is based on computations, which specify the operations ...

Luchangco, Victor

2001-01-01T23:59:59.000Z

466

Model-Based Development of Distributed Embedded Systems by the Example of the Scicos/SynDEx Framework  

E-Print Network (OSTI)

The embedded systems engineering industry faces increasing demands for more functionality, rapidly evolving components, and shrinking schedules. Abilities to quickly adapt to changes, develop products with safe design, minimize project costs, and deliver timely are needed. Model-based development (MBD) follows a separation of concerns by abstracting systems with an appropriate intensity. MBD promises higher comprehension by modeling on several abstraction-levels, formal verification, and automated code generation. This thesis demonstrates MBD with the Scicos/SynDEx framework on a distributed embedded system. Scicos is a modeling and simulation environment for hybrid systems. SynDEx is a rapid prototyping integrated development environment for distributed systems. Performed examples implement well-known control algorithms on a target system containing several networked microcontrollers, sensors, and actuators. The addressed research question tackles the feasibility of MBD for medium-sized embedded systems. In ...

Fischer, Bernhard

2010-01-01T23:59:59.000Z

467

Numerical Modeling of Internal Tide Generation along the Hawaiian Ridge  

Science Journals Connector (OSTI)

Internal M2 tides near Hawaii are investigated with a two-dimensional, two-layer numerical model. It is seen that along the Hawaiian Ridge barotropic tidal energy is transformed into baroclinic internal tides that propagate in both northeast and ...

S. K. Kang; M. G. G. Foreman; W. R. Crawford; J. Y. Cherniawsky

2000-05-01T23:59:59.000Z

468

MULTISPECTRAL SYNTHETIC SCENE GENERATION USING ATMOSPHERIC PROPAGATION AND THERMODYNAMIC MODELS  

E-Print Network (OSTI)

of the Central Intelligence Agency, the US Department of Energy, NASA's Jet Propulsion Laboratory, ITEK a requirement. This document represents the current status of a first-principles physics-based synthetic image behavior in a natural environment, and the propagation of energy through the atmosphere. The model

Salvaggio, Carl

469

Radiative Generation of Quark Masses and Mixing Angles in the Two Higgs Doublet Model  

E-Print Network (OSTI)

We present a framework to generate the quark mass hierarchies and mixing angles by extending the Standard Model with one extra Higgs doublet. The charm and strange quark masses are generated by small quantum effects, thus explaining the hierarchy between the second and third generation quark masses. All the mixing angles are also generated by small quantum effects: the Cabibbo angle is generated at zero-th order in perturbation theory, while the remaining off-diagonal entries of the Cabibbo-Kobayashi-Maskawa matrix are generated at first order, hence explaining the observed hierarchy $|V_{ub}|,|V_{cb}|\\ll |V_{us}|$. The values of the radiatively generated parameters depend only logarithmically on the heavy Higgs mass, therefore this framework can be reconciled with the stringent limits on flavor violation by postulating a sufficiently large new physics scale.

Alejandro Ibarra; Ana Solaguren-Beascoa

2014-07-04T23:59:59.000Z

470

Model-driven dynamic generation of context-adaptive web user interfaces  

Science Journals Connector (OSTI)

The systematic development of user interfaces that enhance interaction quality by adapting to the context of use is a desirable, but also highly challenging task. This paper examines to which extent contextual knowledge can be systematically incorporated ... Keywords: context-aware web user interfaces, model interpretation, model-driven user interface generation, ontology-based Modeling, parameterization, semantically enriched SOA, web service integration

Steffen Lohmann; J. Wolfgang Kaltz; Jrgen Ziegler

2006-10-01T23:59:59.000Z

471

A Generative Approach to Model Interpreter Evolution Jing Zhang, Jeff Gray, and Yuehua Lin  

E-Print Network (OSTI)

to a simulation engine or analysis tool [12]. Generally speaking, a meta- model is relatively stable and seldomA Generative Approach to Model Interpreter Evolution Jing Zhang, Jeff Gray, and Yuehua Lin} @ cis.uab.edu Abstract. Domain-specific modeling techniques are being adopted with more frequency

Gray, Jeffrey G.

472

Modeling Silicon Photonics in Distributed Computing Systems: From the Device to the Rack  

Science Journals Connector (OSTI)

SiP interconnects are envisioned for large scale distributed computing platforms. In such applications, optical systems involving millions of devices have to be modeled. We review key...

Rumley, Sbastien; Nikolova, Dessislava; Hendry, Robert; Wen, Ke; Bergman, Keren

473

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

474

Buildings Energy Data Book: 6.2 Electricity Generation, Transmission, and Distribution  

Buildings Energy Data Book (EERE)

4 4 Electric Conversion Factors and Transmission and Distribution (T&D) Losses Average Utility Average Utility Growth Rate Delivery Efficiency (1, 2) Delivery Ratio (Btu/kWh) (2, 3) (2010-year) 1980 29.4% 1981 29.9% 1982 29.7% 1983 29.8% 1984 30.5% 1985 30.4% 1986 30.8% 1987 31.1% 1988 31.1% 1989 30.2% 1990 30.3% 1991 30.5% 1992 30.7% 1993 30.6% 1994 30.9% 1995 30.7% 1996 30.7% 1997 30.8% 1998 30.7% 1999 30.6% 2000 30.7% 2001 31.1% 2002 31.1% 2003 31.3% 2004 31.3% 2005 31.5% 2006 31.7% 2007 31.8% 2008 31.8% 2009 32.2% 2010 32.3% 2011 32.1% 2012 32.4% 2013 32.7% 2014 33.0% 2015 33.1% 2016 33.2% 2017 33.1% 2018 33.1% 2019 33.1% 2020 33.1% 2021 33.2% 2022 33.2% 2023 33.2% 2024 33.2% 2025 33.1% 2026 33.2% 2027 33.3% 2028 33.4% 10,218 0.2% 10,294 0.2% 10,266 0.2% 10,247 0.2% 10,277 0.2% 10,291 0.2% 10,281 0.2% 10,300 0.3% 10,301 0.3% 10,282 0.3% 10,292 0.4% 10,310 0.4% 10,305

475

Modelling and Analysis of Variable Speed Wind Turbines with Induction Generator during Grid  

E-Print Network (OSTI)

Modelling and Analysis of Variable Speed Wind Turbines with Induction Generator during Grid Fault Wind Turbines with Induction Generator during Grid Fault by Sigrid M. Bolik Institute of Energy turbine technology has undergone rapid developments. Growth in size and the optimization of wind turbines

Hansen, René Rydhof

476

Control Oriented Modeling and System Identification of a Diesel Generator Set (Genset)  

E-Print Network (OSTI)

Cheong, Perry Y. Li and Jicheng Xia Abstract-- A diesel generator set (genset) refers to a diesel engineControl Oriented Modeling and System Identification of a Diesel Generator Set (Genset) Kai Loon dependence on the field current; the engine speed governor is found to be a first order controller

Li, Perry Y.

477

Internal tide generation at the continental shelf modelled using a modal decomposition  

E-Print Network (OSTI)

Internal tide generation at the continental shelf modelled using a modal decomposition: two are required. Using this formulation, we calculate the internal tide generated by a time-periodic barotropic-layer or uniformly stratified. For the two-layer case, we derive expressions for the shoreward and oceanward energy

478

Automated Distributed Implementation of Component-based Models with Priorities  

E-Print Network (OSTI)

School of Computer Science University of Waterloo 200 University Avenue West Waterloo, Canada, N2L3G1.4 [Computer-Communication Networks]: Distributed Systems[Distributed applications] ; D.1.3 [Programming the European Community's Seventh Framework Pro- gramme [FP7/2007-2013] under grant agreement no 248776 (PRO3D

Paris-Sud XI, Université de

479

Modeling transparency and collaborativeness in distributed work groups  

Science Journals Connector (OSTI)

Transparency and collaborativeness are two essential features required for dependability. These two issues in social groups are not well studied. The present paper studies these two aspects in distributed work group environment such as Self Help Groups ... Keywords: SHG, collaboration, distributed work groups, self help group, transparency

A. B. Sagar

2012-09-01T23:59:59.000Z

480

An Arnoldi Approach for Generation of ReducedOrder Models for Turbomachinery  

E-Print Network (OSTI)

An Arnoldi Approach for Generation of Reduced­Order Models for Turbomachinery Karen Willcox used for aeroelastic analyses of turbomachinery. The flow is usually assumed to be two

Peraire, Jaime

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


481

Seasonal Mean Circulation on the Irish Shelf { A Model-Generated Climatology  

E-Print Network (OSTI)

Seasonal Mean Circulation on the Irish Shelf { A Model-Generated Climatology Daniel R. Lynch and interpret the climatological mean circulation in these waters, with emphasis on the Irish Shelf

482

Modeling the final phase of landfill gas generation from long-term observations  

Science Journals Connector (OSTI)

For waste management, methane emissions from landfills and their effect on climate change are of serious concern. Current models for biogas generation that focus on the economic use of the landfill gas are usuall...

Johannes Tintner; Manfred Khleitner; Erwin Binner; Norbert Brunner

2012-06-01T23:59:59.000Z

483

Modified landfill gas generation rate model of first-order kinetics and two-stage reaction  

Science Journals Connector (OSTI)

This investigation was carried out to establish a new domestic landfill gas (LFG) generation rate model that takes...L 0), the reaction rate constant in the first stage (K 1), and ...

Jiajun Chen; Hao Wang

2009-09-01T23:59:59.000Z

484

Development and Testing of a 6-Cylinder HCCI Engine for Distributed Generation  

SciTech Connect

This paper describes the technical approach for converting a Caterpillar 3406 natural gas spark ignited engine into HCCI mode. The paper describes all stages of the process, starting with a preliminary analysis that determined that the engine can be operated by preheating the intake air with a heat exchanger that recovers energy from the exhaust gases. This heat exchanger plays a dual role, since it is also used for starting the engine. For start-up, the heat exchanger is preheated with a natural gas burner. The engine is therefore started in HCCI mode, avoiding the need to handle the potentially difficult transition from SI or diesel mode to HCCI. The fueling system was modified by replacing the natural gas carburetor with a liquid petroleum gas (LPG) carburetor. This modification sets an upper limit for the equivalence ratio at {phi} {approx} 0.4, which is ideal for HCCI operation and guarantees that the engine will not fail due to knock. Equivalence ratio can be reduced below 0.4 for low load operation with an electronic control valve. Intake boosting has been a challenge, as commercially available turbochargers are not a good match for the engine, due to the low HCCI exhaust temperature. Commercial introduction of HCCI engines for stationary power will therefore require the development of turbochargers designed specifically for this mode of operation. Considering that no appropriate off-the-shelf turbocharger for HCCI engines exists at this time, we are investigating mechanical supercharging options, which will deliver the required boost pressure (3 bar absolute intake) at the expense of some reduction in the output power and efficiency. An appropriate turbocharger can later be installed for improved performance when it becomes available or when a custom turbocharger is developed. The engine is now running in HCCI mode and producing power in an essentially naturally aspirated mode. Current work focuses on developing an automatic controller for obtaining consistent combustion in the 6 cylinders. The engine will then be tested for 1000 hours to demonstrate durability. This paper presents intermediate progress towards development of an HCCI engine for stationary power generation and next steps towards achieving the project goals.

Flowers, D L; Martinez-Frias, J; Espinosa-Loza, F; Killingsworth, N; Aceves, S M; Dibble, R; Kristic, M; Bining, A

2005-07-12T23:59:59.000Z

485

An electromagnetic and thermodynamic lumped parameter model of an explosively driven regenerative magnetohydrodynamic generator  

SciTech Connect

The objective of this research is to develop a simple, yet accurate, lumped parameter mathematical model for an explosively driven magnetohydrodynamic generator that can predict the pulse power variables of voltage and current from startup through regenerative operation. The inputs to the model will be the plasma properties entering the generator as predicted by the explosive shock model of Reference [1]. The strategy used was to simplify electromagnetic and thermodynamic three dimensional effects into a zero dimensional model. The model will provide a convenient tool for researchers to optimize designs to be used in pulse power applications. The model is validated using experimental data of Reference [1]. An overview of the operation of the explosively driven generator is first presented. Then a simplified electrical circuit model that describes basic performance of the device is developed. Then a lumped parameter model that incorporates the coupled electromagnetic and thermodynamic effects that govern generator performance is described and developed. The model is based on fundamental physical principles and parameters that were either obtained directly from design data or estimated from experimental data. The model was used to obtain parameter sensitivities and predict beyond the limits observed in the experiments to the levels desired by the potential Department of Defense sponsors. The model identifies process limitations that provide direction for future research.

Morrison, J.L.

1992-12-01T23:59:59.000Z

486

Wind and Load Forecast Error Model for Multiple Geographically Distributed Forecasts  

SciTech Connect

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

487

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.

488

Extreme Work Teams: Using SWAT Teams As a Model for Coordinating Distributed Robots  

E-Print Network (OSTI)

Extreme Work Teams: Using SWAT Teams As a Model for Coordinating Distributed Robots Hank Jones phinds@leland.stanford.edu ABSTRACT We present a field study of police SWAT teams for the purpose observations. Keywords Distributed work, distributed teams, leadership, extreme work teams, field robotics

489

EIA - International Energy Outlook 2008-Appendix J. Models Used To Generate  

Gasoline and Diesel Fuel Update (EIA)

J. Models Used To Generate the IEO2008 Projections J. Models Used To Generate the IEO2008 Projections International Energy Outlook 2008 Appendix J. Models Used To Generate the IEO2008 Projections World Energy Projections Plus (WEPS+) The IEO2008 projections of world energy consumption and supply were generated from EIA’s World Energy Projections Plus (WEPS+) model. WEPS+ is a system of sectoral energy models that provide a loosely linked, integrated equilibrium modeling system. It is used primarily to provide alternative energy projections based on different assumptions for GDP growth and fossil fuel prices. The WEPS+ common platform allows the models to communicate with each other and provides a comprehensive, central series of output reports for analysis. For IEO2008, WEPS+ incorporates a separate transportation sector model with an extensive level of detail for modes and vehicle types. WEPS+ also incorporates some additional detail on industrial energy use in China and India, additional detail on end-use electricity consumption, and an interface to the System for the Analysis of Global Energy Markets/Global Electricity Module (see below) for generation, capacity, and fuel consumption in the electricity sector.

490

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. lvarez; A. Gabaldn

1994-01-01T23:59:59.000Z

491

A Conceptual Model of the Surface Salinity Distribution in the Oceanic Hadley Cell  

Science Journals Connector (OSTI)

A conceptual model of the salinity distribution in the oceanic Hadley cell is presented. The model pertains to the region of tropical easterly surface winds, where the surface salinity increases poleward from a local salinity minimum near the ...

Johan Nilsson; Heiner Krnich

2008-12-01T23:59:59.000Z

492

A novel optimization sizing model for hybrid solar-wind power generation system  

Science Journals Connector (OSTI)

This paper develops the Hybrid Solar-Wind System Optimization Sizing (HSWSO) model, to optimize the capacity sizes of different components of hybrid solar-wind power generation systems employing a battery bank. The HSWSO model consists of three parts: the model of the hybrid system, the model of Loss of Power Supply Probability (LPSP) and the model of the Levelised Cost of Energy (LCE). The flow chart of the HSWSO model is also illustrated. With the incorporated HSWSO model, the sizing optimization of hybrid solar-wind power generation systems can be achieved technically and economically according to the system reliability requirements. A case study is reported to show the importance of the HSWSO model for sizing the capacities of wind turbines, PV panel and battery banks of a hybrid solar-wind renewable energy system.

Hongxing Yang; Lin Lu; Wei Zhou

2007-01-01T23:59:59.000Z

493

Theoretical model for plasma expansion generated by hypervelocity impact  

SciTech Connect

The hypervelocity impact experiments of spherical LY12 aluminum projectile diameter of 6.4?mm on LY12 aluminum target thickness of 23?mm have been conducted using a two-stage light gas gun. The impact velocity of the projectile is 5.2, 5.7, and 6.3?km/s, respectively. The experimental results show that the plasma phase transition appears under the current experiment conditions, and the plasma expansion consists of accumulation, equilibrium, and attenuation. The plasma characteristic parameters decrease as the plasma expands outward and are proportional with the third power of the impact velocity, i.e., (T{sub e}, n{sub e})???v{sub p}{sup 3}. Based on the experimental results, a theoretical model on the plasma expansion is developed and the theoretical results are consistent with the experimental data.

Ju, Yuanyuan; Zhang, Qingming, E-mail: qmzhang@bit.edu.cn; Zhang, Dongjiang; Long, Renrong; Chen, Li; Huang, Fenglei [State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081 (China); Gong, Zizheng [National Key Laboratory of Science and Technology on Reliability and Environment Engineering, Beijing Institute of Spacecraft Environment Engineering, Beijing 100094 (China)

2014-09-15T23:59:59.000Z

494

Modeling the Effect of Hurricanes on Power Distribution Systems  

E-Print Network (OSTI)

There are many calamitous events such as earthquakes, hurricanes, tsunamis etc. that occur suddenly and cause great loss of life, damage, or hardship. Hurricanes cause significant damage to power distribution systems, resulting in prolonged customer...

Chanda, Suraj

2012-10-19T23:59:59.000Z

495

Modeled climate change effects on distributions of Canadian butterfly species  

E-Print Network (OSTI)

Abstract: Climate change effects on biodiversity are being documented now frequently in the form of changes in phenology and distributional shifts. However, the form that these effects will take over a longer timespan is ...

Peterson, A. Townsend; Martí nez-Meyer, Enrique; Gonzá lez-Salazar, Constantino; Hall, Peter W.

2004-07-30T23:59:59.000Z

496

A Complex Model for Distributing Competences That Requires Further Safeguards  

Science Journals Connector (OSTI)

The distribution of competences between State and Autonomous Communities in Spain has recently undergone a number of major changes resulting from the reform of the Statutes of Autonomy. The present article seeks ...

Paloma Biglino Campos

2013-01-01T23:59:59.000Z

497

Fully Distributed Trust Model based on Trust Graph for Mobile Ad hoc Networks  

E-Print Network (OSTI)

Fully Distributed Trust Model based on Trust Graph for Mobile Ad hoc Networks Mawloud Omar, Yacine University of Technology, France. bouabdal@hds.utc.fr Abstract A mobile ad hoc network (MANET) is a wireless that defines who trusts who and how. Our work aims to provide a fully distributed trust model for mobile ad hoc

Paris-Sud XI, Université de

498

Analytical model for ion angular distribution functions at rf biased surfaces with collisionless plasma sheaths  

E-Print Network (OSTI)

Analytical model for ion angular distribution functions at rf biased surfaces with collisionless plasma sheaths Laxminarayan L. Rajaa) Department of Aerospace Engineering and Engineering Mechanics The article presents an analytical model for evaluation of ion angular distribution functions IADFs at a radio

Raja, Laxminarayan L.

499

Characterizing uncertainty in species distribution models derived from interpolated weather station data  

E-Print Network (OSTI)

metrics of uncertainty in interpolated weather station data have varying contributions to over- and underCharacterizing uncertainty in species distribution models derived from interpolated weather station distribution models derived from interpolated weather station data. Ecosphere 4(5):61. http://dx.doi.org/10

Kueppers, Lara M.

500

The NOAA National Operational Model Archive and Distribution System -NOMADS  

E-Print Network (OSTI)

for access to real-time and retrospective high volume numerical weather prediction and climate models been on weather and reanalysis. Plans to support climate models and associated observational data a unified climate and weather model archive providing format independent access to retrospective models