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Note: This page contains sample records for the topic "gas distribution network" 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

Improving the resiliency of the natural gas supply and distribution network .  

E-Print Network (OSTI)

??To accommodate the nationâ s escalating demand for natural gas, which is expected to increase 700% by 2030, the natural gas industry will likely build… (more)

Nadeau, John P.

2007-01-01T23:59:59.000Z

2

Natural Gas Transmission and Distribution Module  

Gasoline and Diesel Fuel Update (EIA)

page intentionally left blank page intentionally left blank 129 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2011 Natural Gas Transmission and Distribution Module The NEMS Natural Gas Transmission and Distribution Module (NGTDM) derives domestic natural gas production, wellhead and border prices, end-use prices, and flows of natural gas through the regional interstate network, for both a peak (December through March) and off peak period during each projection year. These are derived by solving for the market equilibrium across the three main components of the natural gas market: the supply component, the demand component, and the transmission and distribution network that links them. Natural gas flow patterns are a function of the pattern in the previous year, coupled

3

Natural Gas Transmission and Distribution Module This  

Gasoline and Diesel Fuel Update (EIA)

This This page inTenTionally lefT blank 127 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2012 Natural Gas Transmission and Distribution Module The NEMS Natural Gas Transmission and Distribution Module (NGTDM) derives domestic natural gas production, wellhead and border prices, end-use prices, and flows of natural gas through a regional interstate representative pipeline network, for both a peak (December through March) and off-peak period during each projection year. These are derived by solving for the market equilibrium across the three main components of the natural gas market: the supply component, the demand component, and the transmission and distribution network that links them. Natural gas flow patterns are a function of the

4

EIA - Natural Gas Pipeline Network - Underground Natural Gas Storage  

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

Storage Storage About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Underground Natural Gas Storage Overview | Regional Breakdowns Overview Underground natural gas storage provides pipelines, local distribution companies, producers, and pipeline shippers with an inventory management tool, seasonal supply backup, and access to natural gas needed to avoid imbalances between receipts and deliveries on a pipeline network. There are three principal types of underground storage sites used in the United States today. They are: · depleted natural gas or oil fields (326), · aquifers (43), or · salt caverns (31). In a few cases mine caverns have been used. Most underground storage facilities, 82 percent at the beginning of 2008, were created from reservoirs located in depleted natural gas production fields that were relatively easy to convert to storage service, and that were often close to consumption centers and existing natural gas pipeline systems.

5

Breathable gas distribution apparatus  

SciTech Connect

The disclosure is directed to an apparatus for safely supplying breathable gas or air through individual respirators to personnel working in a contaminated area.

Garcia, Elmer D. (Los Alamos, NM)

1985-01-01T23:59:59.000Z

6

Monitoring of the electrical distribution network operation  

Science Conference Proceedings (OSTI)

Distribution network operation is determined by the behaviour of the load. To plan and analyse the electrical network operation, precise modelling of load is substantial. The adequate approach to understand the electrical distribution network operation ... Keywords: SCADA, busloads, distribution network, load monitoring, mathematical model of load, network operation monitoring, state estimation

Jako Kilter; Mati Meldorf

2009-02-01T23:59:59.000Z

7

EIA - Natural Gas Pipeline Network - Transporting Natural Gas in ...  

U.S. Energy Information Administration (EIA)

8 LNG (liquefied natural gas) import facilities and 100 LNG peaking facilities (see map). Learn more about the natural gas pipeline network:

8

Network load-aware content distribution in overlay networks  

Science Conference Proceedings (OSTI)

Massive content distribution on overlay networks stresses both the server and the network resources because of the large volumes of data, relatively high bandwidth requirement, and many concurrent clients. While the server limitation can be circumvented ... Keywords: Content distribution networks, Hypercube, Node selection, Overlay networks, Peer-to-peer networks, Server selection

Seung Chul Han; Ye Xia

2009-01-01T23:59:59.000Z

9

Analysis of Voltage Rise Effect on Distribution Network with Distributed  

E-Print Network (OSTI)

appearance of hidden loads and affect the voltage profile of low voltage distribution network. To overcomeAnalysis of Voltage Rise Effect on Distribution Network with Distributed Generation M. A. Mahmud. This paper presents a detail analysis of how does voltage rise on distribution network due to the penetration

Pota, Himanshu Roy

10

GAS MAIN SENSOR AND COMMUNICATIONS NETWORK SYSTEM  

SciTech Connect

Automatika, Inc. was contracted by the Department of Energy (DOE) and with co-funding from the New York Gas Group (NYGAS), to develop an in-pipe natural gas prototype measurement and wireless communications system for assessing and monitoring distribution networks. A prototype system was built for low-pressure cast-iron mains and tested in a spider- and serial-network configuration in a live network in Long Island with the support of Keyspan Energy, Inc. The prototype unit combined sensors capable of monitoring pressure, flow, humidity, temperature and vibration, which were sampled and combined in data-packages in an in-pipe master-slave architecture to collect data from a distributed spider-arrangement, and in a master-repeater-slave configuration in serial or ladder-network arrangements. It was found that the system was capable of performing all data-sampling and collection as expected, yielding interesting results as to flow-dynamics and vibration-detection. Wireless in-pipe communications were shown to be feasible and valuable data was collected in order to determine how to improve on range and data-quality in the future.

Hagen Schempf, Ph.D.

2003-02-27T23:59:59.000Z

11

Disens: scalable distributed sensor network simulation  

Science Conference Proceedings (OSTI)

Simulation is widely used for developing, evaluating and analyzing sensor network applications, especially when deploying a large scale sensor network remains expensive and labor intensive. However, due to its computation intensive nature, existent simulation ... Keywords: distributed simulation, sensor network, simulation

Ye Wen; Rich Wolski; Gregory Moore

2007-03-01T23:59:59.000Z

12

A new algorithm for gas network simulation  

Science Conference Proceedings (OSTI)

The simulation of natural gas networks has a growing importance for operators of networks. In this paper a new simulation algorithm based on the node potential analysis is presented. The approach is to evaluate analogies between electrical circuits and ... Keywords: algorithms, gas, modeling, networks, nonlinearities, simulation

Jens Rüdiger; Jurij Schiebelbein; Rainhart Lunderstädt; Joachim Horn

2006-02-01T23:59:59.000Z

13

EIA - Natural Gas Pipeline Network - Combined Natural Gas Transportation  

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

Combined Natural Gas Transportation Maps Combined Natural Gas Transportation Maps About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates U.S. Natural Gas Pipeline Network Map of U.S. Natural Gas Pipeline Network Major Natural Gas Supply Basins Relative to Natural Gas Pipeline Transportation Corridors Map of Major Natural Gas Supply Basins Relative to Natural Gas Pipeline Transportation Corridors see related text enlarge see related text enlarge U.S. Regional Breakdown Map of U.S. Regional Breakout States (in Grey) Highly Dependent on Interstate Pipelines for Natural Gas Supplies Map of States (in Grey) Highly Dependent on Interstate Pipelines for Natural Gas Supplies

14

for distributed wireless sensor networks  

E-Print Network (OSTI)

MEMS technology is enabling the development of inexpensive, autonomous wireless sensor nodes with volumes ranging from cubic mm to several cubic cm. These tiny sensor nodes can form rapidly deployed, massive distributed networks to allow unobtrusive, spatially dense, sensing and communication. MEMS enable these devices by reducing both the volume and energy consumption of various components. This paper will review some of the wireless sensor nodes under development and applicable MEMS devices for small and efficient optical communication, micropower generation, and sensing. In addition, CMOS post-process micromachining will be discussed as a method of achieving low cost and high integration. 1.

Brett A. Warneke; Kristofer S. J. Pister

2002-01-01T23:59:59.000Z

15

Resilience of natural gas networks during conflicts, crises and disruptions  

E-Print Network (OSTI)

Human conflict, geopolitical crises, terrorist attacks, and natural disasters can turn large parts of energy distribution networks offline. Europe's current gas supply network is largely dependent on deliveries from Russia and North Africa, creating vulnerabililties to social and political instabilities. During crises, less delivery may mean greater congestion, as the pipeline network is used in ways it has not been designed for. Given the importance of the security of natural gas supply, we develop a model to handle network congestion on various geographical scales. We offer a resilient response strategy to energy shortages and quantify its effectiveness for a variety of relevant scenarios. In essence, Europe's gas supply can be made robust even to major supply disruptions, if a fair distribution strategy is applied.

Carvalho, Rui; Bono, Flavio; Masera, Marcelo; Arrowsmith, David K; Helbing, Dirk

2013-01-01T23:59:59.000Z

16

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

E-Print Network (OSTI)

Gas Abatement with Distributed Generation in California’sGAS ABATEMENT WITH DISTRIBUTED GENERATION IN CALIFORNIA’Sthe role of distributed generation (DG) in greenhouse gas

Stadler, Michael

2010-01-01T23:59:59.000Z

17

EIA - Natural Gas Pipeline Network - Network Configuration & System Design  

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

Network Configuration & System Design Network Configuration & System Design About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Network Configuration and System Design Overview | Transmission/Storage | Design Criteria | Importance of Storage| Overall Pipeline System Configuration Overview A principal requirement of the natural gas transmission system is that it be capable of meeting the peak demand of its shippers who have contracts for firm service. To meet this requirement, the facilities developed by the natural gas transmission industry are a combination of transmission pipelines to bring the gas to the market areas and of underground natural gas storage sites and liquefied natural gas (LNG) peaking facilities located in the market areas.

18

GAS MAIN SENSOR AND COMMUNICATIONS NETWORK SYSTEM  

Science Conference Proceedings (OSTI)

Automatika, Inc. was contracted by the Department of Energy (DOE) and with co-funding from the New York Gas Group (NYGAS), to develop an in-pipe natural gas prototype measurement and wireless communications system for assessing and monitoring distribution networks. In Phase II of this three-phase program, an improved prototype system was built for low-pressure cast-iron and high-pressure steel (including a no-blow installation system) mains and tested in a serial-network configuration in a live network in Long Island with the support of Keyspan Energy, Inc. The experiment was carried out in several open-hole excavations over a multi-day period. The prototype units (3 total) combined sensors capable of monitoring pressure, flow, humidity, temperature and vibration, which were sampled and combined in data-packages in an in-pipe master-repeater-slave configuration in serial or ladder-network arrangements. It was verified that the system was capable of performing all data-sampling, data-storage and collection as expected, yielding interesting results as to flow-dynamics and vibration-detection. Wireless in-pipe communications were shown to be feasible and the system was demonstrated to run off in-ground battery- and above-ground solar power. The remote datalogger access and storage-card features were demonstrated and used to log and post-process system data. Real-time data-display on an updated Phase-I GUI was used for in-field demonstration and troubleshooting.

Hagen Schempf

2004-09-30T23:59:59.000Z

19

Nanogrids, Power Distribution, and Building Networks  

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

Nanogrids, Power Distribution, and Building Networks Speaker(s): Bruce Nordman Date: February 24, 2011 - 12:00pm Location: 90-3122 Electricity consumption and information...

20

Definition: Distribution Automation Communications Network | Open Energy  

Open Energy Info (EERE)

Automation Communications Network Automation Communications Network Jump to: navigation, search Dictionary.png Distribution Automation Communications Network A communications network or networks designed to deliver control signals and information between distribution automation devices, and between these devices and utility grid control systems. These networks can utilize wired or wireless connections, and can be utility-owned or provided as services by a third party.[1] Related Terms distribution automation References ↑ https://www.smartgrid.gov/category/technology/distribution_automation_communications_network [[C LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ategory: Smart Grid Definitionssmart grid,smart grid, |Template:BASEPAGENAME]]smart grid,smart grid, Retrieved from

Note: This page contains sample records for the topic "gas distribution network" 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

Natural Gas Transmission and Distribution Module  

Reports and Publications (EIA)

Documents the archived version of the Natural Gas Transmission and Distribution Model that was used to produce the natural gas forecasts used in support of the Annual Energy Outlook 2013.

Joe Benneche

2013-07-18T23:59:59.000Z

22

Worst Case Scenario for Large Distribution Networks with Distributed Generation  

E-Print Network (OSTI)

and distribution networks, finally to the electric energy consumers. The life style of a nation is measured) in distri- bution network has significant effects on voltage profile for both customers and distribution of this formula is checked by comparing with the existing power systems simulation software. Using the voltage

Pota, Himanshu Roy

23

Two-stage approach for the assessment of distributed generation capacity mixture in active distribution networks  

Science Conference Proceedings (OSTI)

Distribution networks are limited with spare capacities to integrate increased volumes of distributed generation (DG). Network constraints and congestion

D. Jayaweera; S. Islam; S. Neduvelil

2013-01-01T23:59:59.000Z

24

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

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

10 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One Bear Place, Box 97354...

25

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

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

January 1 - March 31, 2011 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One...

26

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

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

09 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One Bear Place, Box 97354...

27

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

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

January 1 - March 31, 2012 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One...

28

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

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

April 1 - June 30, 2011 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One...

29

Electrical Resistivity Investigation of Gas Hydrate Distribution...  

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

July 1 - September 30, 2011 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One...

30

EIA - Natural Gas Pipeline Network - Intrastate Natural Gas Pipeline  

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

Intrastate Natural Gas Pipeline Segment Intrastate Natural Gas Pipeline Segment About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Intrastate Natural Gas Pipeline Segment Overview Intrastate natural gas pipelines operate within State borders and link natural gas producers to local markets and to the interstate pipeline network. Approximately 29 percent of the total miles of natural gas pipeline in the U.S. are intrastate pipelines. Although an intrastate pipeline system is defined as one that operates totally within a State, an intrastate pipeline company may have operations in more than one State. As long as these operations are separate, that is, they do not physically interconnect, they are considered intrastate, and are not jurisdictional to the Federal Energy Regulatory Commission (FERC). More than 90 intrastate natural gas pipelines operate in the lower-48 States.

31

Network Connectivity and Price Convergency: Gas Pipeline Deregulation  

E-Print Network (OSTI)

pipeline tariffs and gas prices were regulated (Mulherin,failed, in equMizing gas prices across the geographicallyNetwork Connectivity and Price Convergence: Gas Pipeline

De Vany, Arthur; Walls, W. David

1993-01-01T23:59:59.000Z

32

ACDN: active content distribution network  

Science Conference Proceedings (OSTI)

A novel dynamic and active CDN architecture based on active network (ACDN) is proposed. The programmable character of active network makes it easier and quicker to configure new replica servers as well as deploy new policies on demand. A genetic algorithm ...

Yan Chen; Zeng-zhi Li; Zhi-gang Liao

2005-03-01T23:59:59.000Z

33

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

E-Print Network (OSTI)

Gas Abatement with Distributed Generation in California'sGas Abatement with Distributed Generation in California scommercial buildings, distributed generation, microgrids

Marnay, Chris

2010-01-01T23:59:59.000Z

34

Spatiotemporal anomaly detection in gas monitoring sensor networks  

Science Conference Proceedings (OSTI)

In this paper, we use Bayesian Networks as a means for unsupervised learning and anomaly (event) detection in gas monitoring sensor networks for underground coal mines. We show that the Bayesian Network model can learn cyclical baselines for gas concentrations, ...

X. Rosalind Wang; Joseph T. Lizier; Oliver Obst; Mikhail Prokopenko; Peter Wang

2008-01-01T23:59:59.000Z

35

Natural Gas Pipeline & Distribution Use  

Gasoline and Diesel Fuel Update (EIA)

3+ or Netscape Navigator 3+ Make sure that JavaScript is enabled in your browser Natural Gas Consumption by End Use (Million Cubic Feet) Data Series: Total Consumption Lease and...

36

Embodied communication in the distributed network  

Science Conference Proceedings (OSTI)

Through the adaptation of new technologies, the creative industries are proposing new forms of interaction for the distributed network. This paper considers the new media artwork Intimate Transactions as an example of a creative, experimental approach ... Keywords: co-presence, embodied interaction, flow, interaction design, network communication, new media art, telepresence

Jillian Hamilton

2007-09-01T23:59:59.000Z

37

Efficient code distribution in wireless sensor networks  

Science Conference Proceedings (OSTI)

The need to reprogramme a wireless sensor network may arise from changing application requirements, bug fixes, or during the application development cycle. Once deployed, it will be impractical at best to reach each individual node. Thus, a scheme is ... Keywords: code distribution, compression, reprogramming, sensor networks, string distance, wireless

Niels Reijers; Koen Langendoen

2003-09-01T23:59:59.000Z

38

Natural Gas Pipeline & Distribution Use  

Gasoline and Diesel Fuel Update (EIA)

(Million Cubic Feet) Data Series: Total Consumption Lease and Plant Fuel Consumption Pipeline & Distribution Use Volumes Delivered to Consumers Volumes Delivered to Residential...

39

EIA - Natural Gas Pipeline Network - Major Natural Gas Transportation  

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

Natural Gas Transportation Corridors Natural Gas Transportation Corridors About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Major Natural Gas Transportation Corridors Corridors from the Southwest | From Canada | From Rocky Mountain Area | Details about Transportation Corridors The national natural gas delivery network is intricate and expansive, but most of the major transportation routes can be broadly categorized into 11 distinct corridors or flow patterns. 5 major routes extend from the producing areas of the Southwest 4 routes enter the United States from Canada 2 originate in the Rocky Mountain area. A summary of the major corridors and links to details about each corridor are provided below. Corridors from the Southwest Region

40

On parton distributions in a photon gas  

E-Print Network (OSTI)

In some cases it may be useful to know parton distributions in a photon gas. This may be relevant, e.g., for the analysis of interactions of high energy cosmic ray particles with the cosmic microwave background radiation. The latter can be considered as a gas of photons with an almost perfect blackbody spectrum. An approach to finding such parton distributions is described. The survival probability of ultra-high energy neutrinos traveling through this radiation is calculated.

I. Alikhanov

2008-12-04T23:59:59.000Z

Note: This page contains sample records for the topic "gas distribution network" 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

Alternative Fuels Data Center: Natural Gas Production and Distribution  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Production Production and Distribution to someone by E-mail Share Alternative Fuels Data Center: Natural Gas Production and Distribution on Facebook Tweet about Alternative Fuels Data Center: Natural Gas Production and Distribution on Twitter Bookmark Alternative Fuels Data Center: Natural Gas Production and Distribution on Google Bookmark Alternative Fuels Data Center: Natural Gas Production and Distribution on Delicious Rank Alternative Fuels Data Center: Natural Gas Production and Distribution on Digg Find More places to share Alternative Fuels Data Center: Natural Gas Production and Distribution on AddThis.com... More in this section... Natural Gas Basics Production & Distribution Related Links Benefits & Considerations Stations Vehicles Laws & Incentives Natural Gas Production and Distribution

42

Flue Gas Desulfurization Gypsum Agricultural Network  

Science Conference Proceedings (OSTI)

Research on flue gas desulfurization gypsum (FGDG) has been conducted under the auspices of the Flue Gas Desulfurization Gypsum Agricultural Network program sponsored by the Electric Power Research Institute (EPRI) in collaboration with individual utilities, the U.S. Environmental Protection Agency, U.S. Department of Agriculture-Agricultural Research Service, and universities. This report describes work conducted in northwestern New Mexico in 2008–2012 as part of that effort. Two separate ...

2012-10-15T23:59:59.000Z

43

Gas network model allows full reservoir coupling  

Science Conference Proceedings (OSTI)

The gas-network flow model (Gasnet) developed for and added to an existing Qatar General Petroleum Corp. (OGPC) in-house reservoir simulator, allows improved modeling of the interaction among the reservoir, wells, and pipeline networks. Gasnet is a three-phase model that is modified to handle gas-condensate systems. The numerical solution is based on a control volume scheme that uses the concept of cells and junctions, whereby pressure and phase densities are defined in cells, while phase flows are defined at junction links. The model features common numerical equations for the reservoir, the well, and the pipeline components and an efficient state-variable solution method in which all primary variables including phase flows are solved directly. Both steady-state and transient flow events can be simulated with the same tool. Three test cases show how the model runs. One case simulates flow redistribution in a simple two-branch gas network. The second simulates a horizontal gas well in a waterflooded gas reservoir. The third involves an export gas pipeline coupled to a producing reservoir.

Methnani, M.M. [Qatar General Petroleum Corp., Doha (Qatar)

1998-02-23T23:59:59.000Z

44

Robust Offshore Networks for Oil and Gas Facilities.  

E-Print Network (OSTI)

??Offshore Communication Networks utilize multiple of communication technologies to eradicate any possibilities of failures, when the network is operational. Offshore Oil and Gas platforms and… (more)

Maheshwari, D.

2010-01-01T23:59:59.000Z

45

Nevada Natural Gas Pipeline and Distribution Use Price (Dollars...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Nevada Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Nevada Natural Gas Pipeline and Distribution...

46

Idaho Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Idaho Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Idaho Natural Gas Pipeline and Distribution Use (Million Cubic...

47

Kansas Natural Gas Pipeline and Distribution Use Price (Dollars...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Kansas Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Kansas Natural Gas Pipeline and Distribution...

48

California Natural Gas Pipeline and Distribution Use (Million...  

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

View History: Annual Download Data (XLS File) California Natural Gas Pipeline and Distribution Use (Million Cubic Feet) California Natural Gas Pipeline and Distribution Use...

49

Nevada Natural Gas Pipeline and Distribution Use (Million Cubic...  

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

View History: Annual Download Data (XLS File) Nevada Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Nevada Natural Gas Pipeline and Distribution Use (Million Cubic...

50

Delaware Natural Gas Pipeline and Distribution Use (Million Cubic...  

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

View History: Annual Download Data (XLS File) Delaware Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Delaware Natural Gas Pipeline and Distribution Use (Million...

51

Alaska Natural Gas Pipeline and Distribution Use (Million Cubic...  

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

View History: Annual Download Data (XLS File) Alaska Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Alaska Natural Gas Pipeline and Distribution Use (Million Cubic...

52

Minnesota Natural Gas Pipeline and Distribution Use (Million...  

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

View History: Annual Download Data (XLS File) Minnesota Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Minnesota Natural Gas Pipeline and Distribution Use (Million...

53

Oregon Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Oregon Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Oregon Natural Gas Pipeline and Distribution Use (Million Cubic...

54

Kansas Natural Gas Pipeline and Distribution Use (Million Cubic...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Kansas Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Kansas Natural Gas Pipeline and Distribution Use (Million Cubic...

55

Utah Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Utah Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Utah Natural Gas Pipeline and Distribution Use (Million Cubic...

56

Washington Natural Gas Pipeline and Distribution Use (Million...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Washington Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Washington Natural Gas Pipeline and Distribution Use...

57

Alabama Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Alabama Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Alabama Natural Gas Pipeline and Distribution Use (Million...

58

Massachusetts Natural Gas Pipeline and Distribution Use (Million...  

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

View History: Annual Download Data (XLS File) Massachusetts Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Massachusetts Natural Gas Pipeline and Distribution Use...

59

Kentucky Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Kentucky Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Kentucky Natural Gas Pipeline and Distribution Use (Million...

60

Indiana Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Indiana Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Indiana Natural Gas Pipeline and Distribution Use (Million...

Note: This page contains sample records for the topic "gas distribution network" 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

Virginia Natural Gas Pipeline and Distribution Use (Million Cubic...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Virginia Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Virginia Natural Gas Pipeline and Distribution Use (Million...

62

Ohio Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Ohio Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Ohio Natural Gas Pipeline and Distribution Use (Million Cubic...

63

Texas Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Texas Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Texas Natural Gas Pipeline and Distribution Use (Million Cubic...

64

Louisiana Natural Gas Pipeline and Distribution Use (Million...  

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

View History: Annual Download Data (XLS File) Louisiana Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Louisiana Natural Gas Pipeline and Distribution Use (Million...

65

Hawaii Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Hawaii Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Hawaii Natural Gas Pipeline and Distribution Use (Million Cubic...

66

Georgia Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Georgia Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Georgia Natural Gas Pipeline and Distribution Use (Million...

67

Florida Natural Gas Pipeline and Distribution Use (Million Cubic...  

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

View History: Annual Download Data (XLS File) Florida Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Florida Natural Gas Pipeline and Distribution Use (Million...

68

Vermont Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Vermont Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Vermont Natural Gas Pipeline and Distribution Use (Million...

69

Arizona Natural Gas Pipeline and Distribution Use (Million Cubic...  

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

View History: Annual Download Data (XLS File) Arizona Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Arizona Natural Gas Pipeline and Distribution Use (Million...

70

Montana Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Montana Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Montana Natural Gas Pipeline and Distribution Use (Million...

71

Wisconsin Natural Gas Pipeline and Distribution Use (Million...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Wisconsin Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Wisconsin Natural Gas Pipeline and Distribution Use (Million...

72

Wyoming Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Wyoming Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Wyoming Natural Gas Pipeline and Distribution Use (Million...

73

Nebraska Natural Gas Pipeline and Distribution Use (Million Cubic...  

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

View History: Annual Download Data (XLS File) Nebraska Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Nebraska Natural Gas Pipeline and Distribution Use (Million...

74

Arkansas Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Arkansas Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Arkansas Natural Gas Pipeline and Distribution Use (Million...

75

Pennsylvania Natural Gas Pipeline and Distribution Use (Million...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Pennsylvania Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Pennsylvania Natural Gas Pipeline and Distribution Use...

76

Tennessee Natural Gas Pipeline and Distribution Use (Million...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Tennessee Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Tennessee Natural Gas Pipeline and Distribution Use (Million...

77

Maine Natural Gas Pipeline and Distribution Use Price (Dollars...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Maine Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Maine Natural Gas Pipeline and Distribution...

78

Mississippi Natural Gas Pipeline and Distribution Use (Million...  

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

View History: Annual Download Data (XLS File) Mississippi Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Mississippi Natural Gas Pipeline and Distribution Use...

79

Connecticut Natural Gas Pipeline and Distribution Use (Million...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Connecticut Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Connecticut Natural Gas Pipeline and Distribution Use...

80

Maine Natural Gas Pipeline and Distribution Use (Million Cubic...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Maine Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Maine Natural Gas Pipeline and Distribution Use (Million Cubic...

Note: This page contains sample records for the topic "gas distribution network" 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

Maryland Natural Gas Pipeline and Distribution Use (Million Cubic...  

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

View History: Annual Download Data (XLS File) Maryland Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Maryland Natural Gas Pipeline and Distribution Use (Million...

82

Michigan Natural Gas Pipeline and Distribution Use (Million Cubic...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Michigan Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Michigan Natural Gas Pipeline and Distribution Use (Million...

83

Oklahoma Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Oklahoma Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Oklahoma Natural Gas Pipeline and Distribution Use (Million...

84

Colorado Natural Gas Pipeline and Distribution Use (Million Cubic...  

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

View History: Annual Download Data (XLS File) Colorado Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Colorado Natural Gas Pipeline and Distribution Use (Million...

85

South Dakota Natural Gas Pipeline and Distribution Use (Million...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) South Dakota Natural Gas Pipeline and Distribution Use (Million Cubic Feet) South Dakota Natural Gas Pipeline and Distribution Use...

86

The role of trace gas flux networks in biogeosciences  

SciTech Connect

Vast networks of meteorological sensors ring the globe, providing continuous measurements of an array of atmospheric state variables such as temperature, humidity, rainfall, and the concentration of carbon dioxide [New etal., 1999; Tans etal., 1996]. These measurements provide input to weather and climate models and are key to detecting trends in climate, greenhouse gases, and air pollution. Yet to understand how and why these atmospheric state variables vary in time and space, biogeoscientists need to know where, when, and at what rates important gases are flowing between the land and the atmosphere. Tracking trace gas fluxes provides information on plant or microbial metabolism and climate-ecosystem interactions. The existence of trace gas flux networks is a relatively new phenomenon, dating back to research in 1984. The first gas flux measurement networks were regional in scope and were designed to track pollutant gases such as sulfur dioxide, ozone, nitric acid, and nitrogen dioxide. Atmospheric observations and model simulations were used to infer the depositional rates of these hazardous chemicals [Fowler etal., 2009; Meyers etal., 1991]. In the late 1990s, two additional trace gas flux measurement networks emerged. One, the United States Trace Gas Network (TRAGNET), was a short-lived effort that measured trace gas emissions from the soil and plants with chambers distributed throughout the country [Ojima etal., 2000]. The other, FLUXNET, was an international endeavor that brought many regional networks together to measure the fluxes of carbon dioxide, water vapor, and sensible heat exchange with the eddy covariance technique [Baldocchi etal., 2001]. FLUXNET, which remains active today, currently includes more than 400 tower sites, dispersed across most of the world's climatic zones and biomes, with sites in North and South America, Europe, Asia, Africa, and Australia. More recently, several specialized networks have emerged, including networks dedicated to urban areas (Urban Fluxnet), nitrogen compounds in Europe (NitroEurope), and methane (MethaneNet). Technical Aspects of Flux Networks Eddy covariance flux measurements are the preferred method by which biogeoscientists measure trace gas exchange between ecosystems and the atmosphere [Baldocchi, 2003].

Baldocch, Dennis [Department of Environmental Science, Policy and Management, University of California, Berkeley,; Reichstein, Markus [Max Planck Institute for Biogeochemistry; Papale, D. [University of Tuscia; KOTEEN, LAURIE [University of California, Berkeley; VARGAS, RODRIGO [Ensenada Center for Scientific Research and Higher Education (CICESE); Agarwal, D.A [Lawrence Berkeley National Laboratory (LBNL); Cook, Robert B [ORNL

2012-01-01T23:59:59.000Z

87

Urban Network Practices: Pacific Gas and Electric Company  

Science Conference Proceedings (OSTI)

This report describes the findings of an underground distribution practices immersion conducted by the Electric Power Research Institute (EPRI) with the Pacific Gas and Electric Company (PG&E). This immersion was conducted as part of a multi-year effort by EPRI to identify noteworthy practices in managing urban network systems. More specifically, this report profiles the practices (people, processes, and technology) in place at PG&E, a San Francisco, California-based utility serving customers via seconda...

2011-07-20T23:59:59.000Z

88

Condition based management of gas turbine engine using neural networks.  

E-Print Network (OSTI)

??This research work is focused on the development of the hybrid neural network model to asses the gas turbine’s compressor health. Effects of various gas… (more)

Muthukumar, Krishnan.

2008-01-01T23:59:59.000Z

89

Quantum key distribution network with wavelength addressing  

E-Print Network (OSTI)

Most traditional applications of quantum cryptography are point-to-point communications, in which only two users can exchange keys. In this letter, we present a network scheme that enable quantum key distribution between multi-user with wavelength addressing. Considering the current state of wavelength division multiplexing technique, dozens or hundreds of users can be connected to such a network and directly exchange keys with each other. With the scheme, a 4-user demonstration network was built up and key exchanges were performed.

Mo, X F; Han, Z F; Xu, F X; Zhang, T; Guo, Guang-Can; Han, Zheng-Fu; Mo, Xiao-Fan; Xu, Fang-Xing; Zhang, Tao

2006-01-01T23:59:59.000Z

90

Advanced gas distribution research at IGT  

SciTech Connect

The Institute of Gas Technology (IGT) has made substantial progress on its multi-year program in demonstrating the technical feasibility of integrated, automated gas distribution systems. The objective of this program is to address automation of distribution as a total system, rather than automation of individual features. This work is geared towards developing a compatible, modular automation system to benefit gas utilities. The system must have an open architecture so that any manufacturer can produce equipment that will be compatible with all other system components. There are approximately 30 capabilities that the laboratory system will ultimately demonstrate, and 10 are now functional. These include: gas meter reading, bill calculation and printing, multiple rate billing, tamper detection, electronic reconfiguration, global commands, remote city gate station control, district meter reading, cathodic protection potential reading, and automatic differential pressure reading.

Rush, W.F. Jr.

1987-01-01T23:59:59.000Z

91

Distributed services for mobile ad hoc networks  

E-Print Network (OSTI)

A mobile ad hoc network consists of certain nodes that communicate only through wireless medium and can move arbitrarily. The key feature of a mobile ad hoc network is the mobility of the nodes. Because of the mobility, communication links form and disappear as nodes come into and go out of each other's communica- tion range. Mobile ad hoc networks are particularly useful in situations like disaster recovery and search, military operations, etc. Research on mobile ad hoc networks has drawn a huge amount of attention recently. The main challenges for mobile ad hoc networks are the sparse resources and frequent mobility. Most of the research work has been focused on the MAC and routing layer. In this work, we focus on distributed services for mobile ad hoc networks. These services will provide some fundamental functions in developing various applications for mobile ad hoc networks. In particular, we focus on the clock synchronization, connected dominating set, and k-mutual exclusion problems in mobile ad hoc networks.

Cao, Guangtong

2005-08-01T23:59:59.000Z

92

Road traffic model using distributed camera network  

Science Conference Proceedings (OSTI)

Traffic monitoring/prediction using a distributed camera network is presented in this paper. The activities on each road link are monitored and features are derived to identify the pattern. Then it is learnt, classified, predicted and communicated to ... Keywords: hidden Markov model, spatial interest points, spatial-temporal interest points, traffic classification, traffic prediction, traffic surveillance

S. Indu; Sankalp Arora; Santanu Chaudhury; Asok Bhattacharyya

2010-12-01T23:59:59.000Z

93

Resilient Networked Control of Distributed Energy Resources  

E-Print Network (OSTI)

://www.nik.no/ Open Source Software for the Smartgrid: Challenges for Software Safety and Evolution Tosin Daniel, Trondheim, Norway. Abstract The growing Smartgrid behind today's electricity supply introduces many domains (generation, transmission, distribution and consumption) and nodes of the Smartgrid network

Hadjicostis, Christoforos

94

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

E-Print Network (OSTI)

J.L. Edwards, (2003), “Distributed Energy Resources CustomerGas-Fired Distributed Energy Resource Characterizations”,Energy Reliability, Distributed Energy Program of the U.S.

Stadler, Michael

2010-01-01T23:59:59.000Z

95

Management of electric vehicle battery charging in distribution networks.  

E-Print Network (OSTI)

??This thesis investigated the management of electric vehicle battery charging in distribution networks. Different electric vehicle fleet sizes and network locations were considered. The energy… (more)

Grau, Ińaki

2012-01-01T23:59:59.000Z

96

Flue Gas Desulfurization Gypsum Agricultural Network  

Science Conference Proceedings (OSTI)

Increasing volumes of flue gas desulfurization (FGD) gypsum will become available for agricultural use as more utilities install forced oxidation scrubbers and the wallboard market for the resulting gypsum becomes saturated. This interim report describes work performed in 2007 and 2008 to develop a national research network to gain data and experience to support the beneficial uses of FGD products, especially FGD gypsum, in agriculture and other land applications.

2008-12-12T23:59:59.000Z

97

Flue Gas Desulfurization Gypsum Agricultural Network  

Science Conference Proceedings (OSTI)

Flue gas desulfurization (FGD) gypsum is a solid produced by wet FGD systems with forced air oxidation and is chemically similar to mined gypsum. These gypsums, used as beneficial agricultural amendments, were evaluated for their effects on earthworm populations and trace element concentrations in soils and earthworms at four field sites (Ohio, Indiana, Alabama, and Wisconsin). These sites are part of a network study on agricultural uses of FGD gypsum conducted at sites across the United States. ...

2012-09-19T23:59:59.000Z

98

Delaware Natural Gas Pipeline and Distribution Use Price (Dollars...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Delaware Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Delaware Natural Gas Pipeline and...

99

California Natural Gas Pipeline and Distribution Use Price (Dollars...  

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

View History: Annual Download Data (XLS File) California Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) California Natural Gas Pipeline and...

100

Alabama Natural Gas Pipeline and Distribution Use Price (Dollars...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Alabama Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Alabama Natural Gas Pipeline and...

Note: This page contains sample records for the topic "gas distribution network" 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

Florida Natural Gas Pipeline and Distribution Use Price (Dollars...  

Gasoline and Diesel Fuel Update (EIA)

View History: Annual Download Data (XLS File) Florida Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Florida Natural Gas Pipeline and...

102

Oklahoma Natural Gas Pipeline and Distribution Use Price (Dollars...  

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

View History: Annual Download Data (XLS File) Oklahoma Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Oklahoma Natural Gas Pipeline and...

103

Massachusetts Natural Gas Pipeline and Distribution Use Price...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Massachusetts Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Massachusetts Natural Gas Pipeline...

104

Wisconsin Natural Gas Pipeline and Distribution Use Price (Dollars...  

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

View History: Annual Download Data (XLS File) Wisconsin Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Wisconsin Natural Gas Pipeline and...

105

Vermont Natural Gas Pipeline and Distribution Use Price (Dollars...  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) Vermont Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Vermont Natural Gas Pipeline and...

106

Optimization Online - Validation of Nominations in Gas Network ...  

E-Print Network (OSTI)

Nov 30, 2012... the validation of nomination problem: Given a gas transmission network consisting of passive pipelines and active, controllable elements and ...

107

Optimization Techniques for the Brazilian Natural Gas Network ...  

E-Print Network (OSTI)

Jun 4, 2013 ... Optimization Techniques for the Brazilian Natural Gas Network Planning Problem . Leonardo A.M. Moraes(leonardo.moraes ***at*** ...

108

Stochastic Optimal Control Framework for Natural Gas Network...  

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

Stochastic Optimal Control Framework for Natural Gas Network Operations Event Sponsor: Mathematics and Computing Science - LANS Seminar Start Date: Nov 20 2013 - 3:00pm Building...

109

Semantic Routed Network for Distributed Search Engines  

E-Print Network (OSTI)

Searching for textual information has become an important activity on the web. To satisfy the rising demand and user expectations, search systems should be fast, scalable and deliver relevant results. To decide which objects should be retrieved, search systems should compare holistic meanings of queries and text document objects, as perceived by humans. Existing techniques do not enable correct comparison of composite holistic meanings like: "evidences on role of DR2 gene in development of diabetes in Caucasian population", which is composed of multiple elementary meanings: "evidence", "DR2 gene", etc. Thus these techniques can not discern objects that have a common set of keywords but convey different meanings. Hence we need new methods to compare composite meanings for superior search quality. In distributed search engines, for scalability, speed and efficiency, index entries should be systematically distributed across multiple index-server nodes based on the meaning of the objects. Furthermore, queries should be selectively sent to those index nodes which have relevant entries. This requires an overlay Semantic Routed Network which will route messages, based on meaning. This network will consist of fast response networking appliances called semantic routers. These appliances need to: (a) carry out sophisticated meaning comparison computations at high speed; and (b) have the right kind of behavior to automatically organize an optimal index system. This dissertation presents the following artifacts that enable the above requirements: (1) An algebraic theory, a design of a data structure and related techniques to efficiently compare composite meanings. (2) Algorithms and accelerator architectures for high speed meaning comparisons inside semantic routers and index-server nodes. (3) An overlay network to deliver search queries to the index nodes based on meanings. (4) Algorithms to construct a self-organizing, distributed meaning based index system. The proposed techniques can compare composite meanings ~105 times faster than an equivalent software code and existing hardware designs. Whereas, the proposed index organization approach can lead to 33% savings in number of servers and power consumption in a model search engine having 700,000 servers. Therefore, using all these techniques, it is possible to design a Semantic Routed Network which has a potential to improve search results and response time, while saving resources.

Biswas, Amitava

2010-05-01T23:59:59.000Z

110

EIA - Natural Gas Pipeline Network - Natural Gas Pipeline Mileage...  

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

Home > Natural Gas > About U.S. Natural Gas Pipelines > Natural Gas Pipeline Mileage by State About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through...

111

Distributed Rate Allocation for Wireless Networks  

E-Print Network (OSTI)

This paper describes a distributed algorithm for rate allocation in wireless networks. As the main result, the paper establishes that this algorithm is throughput-optimal for very general class of throughput regions. In contrast to distributed on-off scheduling algorithms, this algorithm enables optimal utilization of physical layer schemes by scheduling multiple rate levels. The algorithm is based on a Markov process on these discrete set of rates with certain transition rates. For dealing with multiple rate levels, the paper introduces an important structure for the transition rates, which enable the design of appropriate update rule for these transition rates. The update uses local queue length information alone, and thus does not require global exchange of queue length information. In addition, the algorithm requires that each link can determine the feasibility of increasing its data-rate from the current value without reducing the data-rates of other links. Determining rate feasibility does not introduce...

Jose, Jubin

2010-01-01T23:59:59.000Z

112

Distributed control applied to combined electricity and natural gas infrastructures  

E-Print Network (OSTI)

Abstract — The optimization of combined electricity and natural gas systems is addressed in this paper. The two networks are connected via energy hubs. Using the energy hub concept, the interactions between the different infrastructures can be analyzed. A system consisting of several interconnected hubs forms a distributed power generation structure where each hub is controlled by its respective control agent. Recently, a distributed control method has been applied to such a system. The overall optimization problem including the entire system is decomposed into subproblems according to the control agents. In this paper, a parallel and serial version of that method is discussed. Simulation results are obtained through experiments on a three-hub benchmark system. I.

Michčle Arnold; Rudy R. Negenborn; Göran Andersson; Bart De Schutter

2008-01-01T23:59:59.000Z

113

EIA - Natural Gas Pipeline Network - Generalized Natural Gas...  

Annual Energy Outlook 2012 (EIA)

Gas based on data through 20072008 with selected updates Generalized Natural Gas Pipeline Capacity Design Schematic Generalized Natural Gas Pipeline Capcity Design Schematic...

114

EIA - Natural Gas Pipeline Network - Natural Gas Transportation...  

Gasoline and Diesel Fuel Update (EIA)

Corridors > Major U.S. Natural Gas Transportation Corridors Map About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates...

115

EIA - Natural Gas Pipeline Network - Natural Gas Transmission...  

Annual Energy Outlook 2012 (EIA)

Transmission Path Diagram About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Natural Gas Transmission Path Natural...

116

Energy Distribution Control in Wireless Sensor Networks Through Range Optimization  

E-Print Network (OSTI)

Energy Distribution Control in Wireless Sensor Networks Through Range Optimization M.Sarper Gokturk a location-based routing framework to control the energy distribution in a network where transmission ranges--A major objective in wireless sensor networks is to find optimum routing strategies for energy efficient

Yanikoglu, Berrin

117

Task-oriented Distributed Information Fusion in Wireless Sensor Networks  

Science Conference Proceedings (OSTI)

A wireless sensor network may form a part of the base for cloud computing through Internet. We present a framework of task-oriented distributed data fusion, and investigate the assignments of heterogeneous sensors on nodes in the network for a specified ... Keywords: Distributed Decision Making, Linguistic Decision Trees, Network Hierarchy, Optimal sensor assignments

Hongmei He; Zhenhuan Zhu; Erkki Makinen

2012-08-01T23:59:59.000Z

118

Evolutionary computation on complex spatially-distributed networks  

Science Conference Proceedings (OSTI)

In this paper, we describe a new computational approach to optimize the architecture of complex spatially-distributed networks. The proposed approach is based on an evolutionary search of "what-if" networks generated from a seed network. A genetic algorithm ... Keywords: genetic algorithms, optimization, performance measures, socio-technical networks

Marcin L. Pilat; Irene Pestov

2010-07-01T23:59:59.000Z

119

EIA - Natural Gas Pipeline Network - Natural Gas Supply Basins ...  

U.S. Energy Information Administration (EIA)

About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates

120

Event-triggered distributed algorithms for network optimization  

Science Conference Proceedings (OSTI)

Many existing distributed algorithms for network optimization problems often rely on the fact that, if the communications between subsystems are frequent enough, then the state of the network will converge to its optimum asymptotically. This ...

Pu Wan / Michael D. Lemmon

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas distribution network" 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

Game Theoretic Distributed Energy Control in Sensor Networks  

Science Conference Proceedings (OSTI)

Standard wireless sensor networks models emphasize energy efficiency and distributed decision- making by considering unattended sensors. Wireless sensor networks are confronted with the challenges of performance and energy consumption. To prolong the ...

Jia Zeng; Chundi Mu; Min Jiang

2007-10-01T23:59:59.000Z

122

Distributed energy-efficient hierarchical clustering for wireless sensor networks  

Science Conference Proceedings (OSTI)

Since nodes in a sensor network have limited energy, prolonging the network lifetime and improving scalability become important. In this paper, we propose a distributed weight-based energy-efficient hierarchical clustering protocol (DWEHC). Each node ...

Ping Ding; JoAnne Holliday; Aslihan Celik

2005-06-01T23:59:59.000Z

123

A novel method for flux distribution computation in metabolic networks  

Science Conference Proceedings (OSTI)

In recent years, the study on metabolic networks has attracted considerable attention from the research community. Though the topological structures of genome-scale metabolic networks of some organisms have been investigated, their metabolic flux distributions ...

Da Jiang; Shuigeng Zhou; Jihong Guan

2007-03-01T23:59:59.000Z

124

Optimized renewable energy forecasting in local distribution networks  

Science Conference Proceedings (OSTI)

The integration of renewable energy sources (RES) into local energy distribution networks becomes increasingly important. Renewable energy highly depends on weather conditions, making it difficult to maintain stability in such networks. To still enable ...

Robert Ulbricht; Ulrike Fischer; Wolfgang Lehner; Hilko Donker

2013-03-01T23:59:59.000Z

125

Distributed Energy-Efficient Hierarchical Clustering for Wireless Sensor Networks  

E-Print Network (OSTI)

Distributed Energy-Efficient Hierarchical Clustering for Wireless Sensor Networks Ping Ding, Jo important. In this paper, we propose a distributed weight-based energy-efficient hierarchical clustering of the network topology. Younis and Fahmy [4] propose a Hybrid Energy-Efficient Distributed clustering (HEED

Holliday, JoAnne

126

Distribution Of Wealth In A Network Model Of The Economy  

E-Print Network (OSTI)

We show, analytically and numerically, that wealth distribution in the Bouchaud-M\\'ezard network model of the economy is described by a three-parameter generalized inverse gamma distribution. In the mean-field limit of a network with any two agents linked, it reduces to the inverse gamma distribution.

Ma, Tao; Serota, R A

2012-01-01T23:59:59.000Z

127

EIA - Natural Gas Pipeline Network - Depleted Reservoir ...  

U.S. Energy Information Administration (EIA)

About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates

128

Model documentation: 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. 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. 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 methodology employed allows the analysis of impacts of regional capacity constraints in the interstate natural gas pipeline network and the identification of pipeline capacity expansion requirements. There is an explicit representation of core and noncore markets for natural gas transmission and distribution services, and the key components of pipeline tariffs are represented in a pricing algorithm. Natural gas pricing and flow patterns are derived by obtaining a market equilibrium across the three main elements of the natural gas market: the supply element, the demand element, and the transmission and distribution network that links them. The NGTDM consists of four modules: the Annual Flow Module, the Capacity F-expansion Module, the Pipeline Tariff Module, and the Distributor Tariff Module. A model abstract is provided in Appendix A.

NONE

1995-02-17T23:59:59.000Z

129

U.S. Distribution and Production of Oil and Gas Wells Distribution...  

Open Energy Info (EERE)

Distribution and Production of Oil and Gas Wells Distribution tables of oil and gas wells by production rate for all wells, including marginal wells, are available from the EIA for...

130

EIA - Natural Gas Pipeline Network - U.S. Natural Gas Pipeline ...  

U.S. Energy Information Administration (EIA)

U.S. Natural Gas Pipeline Network, 2009 The EIA has determined that the informational map displays here do not raise security concerns, based on the application of ...

131

Natural Gas Transmission and Distribution Module  

Gasoline and Diesel Fuel Update (EIA)

5, DOE/EIA-M062(2005) (Washington, DC, 2005). 5, DOE/EIA-M062(2005) (Washington, DC, 2005). Energy Information Administration/Assumptions to the Annual Energy Outlook 2006 101 Primary Flows Secondary Flows Pipeline Border Crossing Specific LNG Terminals Primary Flows Secondary Flows Pipeline Border Crossing Specific LNG Terminals Generic LNG Terminals Alaska Alaska MacKenzie W. Canada E. Canada Canada Offshore & LNG Pacific (9) Mountain (8) CA (12) AZ/NM (11) W. South Central (7) E. South Central (6) W. North Central (4) E. North Central (3) Mid Atlantic (2) New Engl. (1) S. Atlantic (5) FL (10) Bahamas Mexico Figure 8. Natural Gas Transmission and Distribution Model Regions Source: Energy Information Administration, Office of Integrated Analysis and Forecasting Report #:DOE/EIA-0554(2006) Release date: March 2006 Next release date: March 2007

132

Protection and Control of Active Distribution Networks and Microgrids.  

E-Print Network (OSTI)

??This thesis is mainly focused on (i) modeling and control of Electronically Coupled Distributed Energy Resources (EC-DERs) under severe network imbalances and transient incidents, and… (more)

Zamani, Mohammad Amin

2012-01-01T23:59:59.000Z

133

Planning of distribution networks for medium voltage and low voltage.  

E-Print Network (OSTI)

??Determination of the placement and rating of transformers and feeders are the main objective of the basic distribution network planning. The bus voltage and the… (more)

Ziari, Iman

2011-01-01T23:59:59.000Z

134

EIA - Natural Gas Pipeline Network - Natural Gas Supply Basins...  

Annual Energy Outlook 2012 (EIA)

with selected updates U.S. Natural Gas Supply Basins Relative to Major Natural Gas Pipeline Transportation Corridors, 2008 U.S. Natural Gas Transporation Corridors out of Major...

135

EIA - Natural Gas Pipeline Network - Natural Gas Import/Export ...  

U.S. Energy Information Administration (EIA)

Home > Natural Gas > About U.S. Natural Gas Pipelines > Natural ... The EIA has determined that the informational map displays here do not raise security ...

136

EIA - Natural Gas Pipeline Network - Natural Gas Pipeline ...  

U.S. Energy Information Administration (EIA)

Home > Natural Gas > About U.S. Natural Gas Pipelines > U.S ... The EIA has determined that the informational map displays here do not raise security ...

137

Interconnecting PV on New York City's Secondary Network Distribution System  

DOE Green Energy (OSTI)

This study describes technical assistance provided by NREL to help New York City and Con Edison improve the interconnection of distributed PV systems on a secondary network distribution system.

Anderson, K.; Coddington, M.; Burman, K.; Hayter, S.; Kroposki, B.; Watson, A.

2009-12-01T23:59:59.000Z

138

Cooperative Energy Network Optimization for Distributed Microgrids: Game Theoretic Approach  

E-Print Network (OSTI)

Cooperative Energy Network Optimization for Distributed Microgrids: Game Theoretic Approach Y. Wasa. 1 5) 6, 7) 8) 6, 9) 10) 7) Receding Horizon Fig. 1: Distributed Microgrids4) 2 2.1 n V := {1

139

Natural Gas Distributed Resource Fuel Pressure and Delivery Issues  

Science Conference Proceedings (OSTI)

Many emerging distributed resource (DR) technologies will be developed to operate on natural gas. However, increased reliance on natural gas as an energy source raises issues with regard to its availability and delivery capacity. In addition, some DR technologies may require specific pressure levels to operate properly. This report discusses the natural gas distribution infrastructure as well as the availability and suitability of DR gas booster technologies.

2000-10-17T23:59:59.000Z

140

Expansion of the U.S. Natural Gas Pipeline Network:  

Gasoline and Diesel Fuel Update (EIA)

Expansion of the U.S. Natural Gas Pipeline Network: Expansion of the U.S. Natural Gas Pipeline Network: Additions in 2008 and Projects through 2011 This report examines new natural gas pipeline capacity added to the U.S. natural gas pipeline system during 2008. In addition, it discusses and analyzes proposed natural gas pipeline projects that may be developed between 2009 and 2011, and the market factors supporting these initiatives. Questions or comments on this article should be directed to Damien Gaul at damien.gaul@eia.doe.gov or (202) 586-2073. Robust construction of natural gas infrastructure in 2008 resulted in the completion of 84 pipeline projects in the lower 48 States, adding close to 4,000 miles of natural gas pipeline. These completions of new natural gas pipelines and expansions of existing pipelines in the United States

Note: This page contains sample records for the topic "gas distribution network" 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

Using structural information for distributed recommendation in a social network  

Science Conference Proceedings (OSTI)

Social networks are social structures that depict relational structure of different entities. The most important entities are usually located in strategic locations within the network. Users from such positions play important roles in spreading the information. ... Keywords: Centrality, Distributed recommendation, Social network, Trust

Somayeh Koohborfardhaghighi; Juntae Kim

2013-03-01T23:59:59.000Z

142

Distributed scheduling schemes for wireless mesh networks: A survey  

Science Conference Proceedings (OSTI)

An efficient scheduling scheme is a crucial part of Wireless Mesh Networks (WMNs)—an emerging communication infrastructure solution for autonomy, scalability, higher throughput, lower delay metrics, energy efficiency, and other service-level guarantees. ... Keywords: Wireless mesh networks, ad hoc networks, cyclic access, distributed scheduling schemes, pseudo-random access, random access

Kanthaiah Sivapragasam Vijayalayan, Aaron Harwood, Shanika Karunasekera

2013-10-01T23:59:59.000Z

143

Innovative Distributed Multi-Pollutant Pot Gas Treatment System  

Science Conference Proceedings (OSTI)

Arranging the gas treatment in decentralized installations as Distributed Decentralised ... Development of NEUI500kA Family High Energy Efficiency Aluminum ...

144

,"Rhode Island Natural Gas Pipeline and Distribution Use Price...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Rhode Island Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet)",1,"Annual",2005...

145

Distributed computation in wireless and dynamic networks  

E-Print Network (OSTI)

Today's wireless networks tend to be centralized: they are organized around a fixed central backbone such as a network of cellular towers or wireless access points. However, as mobile computing devices continue to shrink ...

Oshman, Rotei

2012-01-01T23:59:59.000Z

146

Energy supply network design optimization for distributed energy systems  

Science Conference Proceedings (OSTI)

Based on the fluctuations in power and heat demand of the consumers in a region, this paper presents a bi-level programming model for the regional DES (distributed energy system) network planning. The model aims to minimize the total cost of the regional ... Keywords: Bi-level programming, Distributed energy system, Energy supply network, Hybrid algorithm

Ming Dong; Fenglan He; Hairui Wei

2012-11-01T23:59:59.000Z

147

A graph based method for faster display for distribution networks  

Science Conference Proceedings (OSTI)

This paper presents our logical display approach for Distribution Networks based on the concept of Microsoft graphs. We demonstrate that by using Microsoft graphs we do not have to redraw the circuits after each switching operation or after a change ... Keywords: algorithms, distribution, graphs, logical display, network systems

Mansoor Al-A'ali

2008-06-01T23:59:59.000Z

148

IDEA: integrated distributed energy awareness for wireless sensor networks  

Science Conference Proceedings (OSTI)

Energy in sensor networks is a distributed, non-transferable resource. Over time, differences in energy availability are likely to arise. Protocols like routing trees may concentrate energy usage at certain nodes. Differences in energy harvesting arising ... Keywords: optimization, resource distribution, resource management, wireless sensor networks

Geoffrey Werner Challen; Jason Waterman; Matt Welsh

2010-06-01T23:59:59.000Z

149

Distributed Control of HVAC&R Networks  

E-Print Network (OSTI)

Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems are a major component of worldwide energy consumption, and frequently consist of complex networks of interconnected components. The ubiquitous nature of these systems suggests that improvements in their energy efficiency characteristics can have significant impact on global energy consumption. The complexity of the systems, however, means that decentralized control schemes will not always suffice to balance competing goals of energy efficiency and occupant comfort and safety. This dissertation proposes control solutions for three facets of this problem. The first is a cascaded control architecture for actuators, such as electronic expansion valves, that provides excellent disturbance rejection and setpoint tracking characteristics, as well as partial nonlinearity compensation without a compensation model. The second solution is a hierarchical control architecture for multiple-evaporator vapor compression systems that uses model predictive control (MPC) at both the supervisory and component levels. The controllers leverage the characteristics of MPC to balance energy efficiency with occupant comfort. Since the local controllers are decentralized, the architecture retains a degree of modularity—changing one component does not require changing all controllers. The final contribution is a new distributed optimization algorithm that is rooted in distributed MPC and is especially motivated by HVAC&R systems. This algorithm allows local level optimizers to iterate to a centralized solution. The optimizers have no knowledge of any plant other than the plant they are associated with, and only need to communicate with their immediate neighbors. The efficacy of the algorithm is displayed with two sets of examples. One example is simulation based, wherein a building is modeled in the EnergyPlus software suite. The other is an experimental example. In this example, the algorithm is applied to a multiple evaporator vapor compression system. In both cases the design method is discussed, and the ability of the algorithm to reduce energy consumption when properly applied is demonstrated.

Elliott, Matthew Stuart

2013-08-01T23:59:59.000Z

150

Robust State Estimation Under False Data Injection in Distributed Sensor Networks Shanshan Zheng, Tao Jiang, John S. Baras  

E-Print Network (OSTI)

Robust State Estimation Under False Data Injection in Distributed Sensor Networks Shanshan Zheng algorithms against false data injection. They are built upon an existing distributed Kalman filtering infrastructure assets, such as power grids, automated railroad control, water and gas distribution, etc

Baras, John S.

151

The Communication Networks Guidebook for Intelligent Distribution Systems  

Science Conference Proceedings (OSTI)

This report describes communication networks relevant to electric utility applications for utility members. Details to further an understanding of functional and technical capabilities and comparisons of such networks are included. The report also provides a detailed, systematic analysis of issues directly related to the integration, interoperability, and performance of the communication networks for distribution applications. The focus is to better understand the behavior of individual networks, especia...

2010-03-31T23:59:59.000Z

152

EIA - Natural Gas Pipeline Network - Regulatory Authorities  

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

Regulatory Authorities Regulatory Authorities About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates U.S. Natural Gas Regulatory Authorities Beginning | Regulations Today | Coordinating Agencies | Regulation of Mergers and Acquisitions Beginning of Industry Restructuring In April 1992, the Federal Energy Regulatory Commission (FERC) issued its Order 636 and transformed the interstate natural gas transportation segment of the industry forever. Under it, interstate natural gas pipeline companies were required to restructure their operations by November 1993 and split-off any non-regulated merchant (sales) functions from their regulated transportation functions. This new requirement meant that interstate natural gas pipeline companies were allowed to only transport natural gas for their customers. The restructuring process and subsequent operations have been supervised closely by FERC and have led to extensive changes throughout the interstate natural gas transportation segment which have impacted other segments of the industry as well.

153

Optimization for Design and Operation of Natural Gas Transmission Networks  

E-Print Network (OSTI)

This study addresses the problem of designing a new natural gas transmission network or expanding an existing network while minimizing the total investment and operating costs. A substantial reduction in costs can be obtained by effectively designing and operating the network. A well-designed network helps natural gas companies minimize the costs while increasing the customer service level. The aim of the study is to determine the optimum installation scheduling and locations of new pipelines and compressor stations. On an existing network, the model also optimizes the total flow through pipelines that satisfy demand to determine the best purchase amount of gas. A mixed integer nonlinear programming model for steady-state natural gas transmission problem on tree-structured network is introduced. The problem is a multi-period model, so changes in the network over a planning horizon can be observed and decisions can be made accordingly in advance. The problem is modeled and solved with easily accessible modeling and solving tools in order to help decision makers to make appropriate decisions in a short time. Various test instances are generated, including problems with different sizes, period lengths and cost parameters, to evaluate the performance and reliability of the model. Test results revealed that the proposed model helps to determine the optimum number of periods in a planning horizon and the crucial cost parameters that affect the network structure the most.

Dilaveroglu, Sebnem 1986-

2012-12-01T23:59:59.000Z

154

Safety of Gas Transmission and Distribution Systems (Maine) | Department of  

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

Safety of Gas Transmission and Distribution Systems (Maine) Safety of Gas Transmission and Distribution Systems (Maine) Safety of Gas Transmission and Distribution Systems (Maine) < 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 Program Info State Maine Program Type Safety and Operational Guidelines Provider Public Utilities Commission These regulations describe requirements for the participation of natural gas utilities in the Underground Utility Damage Prevention Program,

155

Protection of distributed generation interfaced networks.  

E-Print Network (OSTI)

??With the rapid increase in electrical energy demand, power generation in the form of distributed generation is becoming more important. However, the connections of distributed… (more)

Dewadasa, Jalthotage Manjula Dinesh

2010-01-01T23:59:59.000Z

156

EIA - Natural Gas Pipeline Network - Largest Natural Gas Pipeline Systems  

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

Interstate Pipelines Table Interstate Pipelines Table About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Thirty Largest U.S. Interstate Natural Gas Pipeline Systems, 2008 (Ranked by system capacity) Pipeline Name Market Regions Served Primary Supply Regions States in Which Pipeline Operates Transported in 2007 (million dekatherm)1 System Capacity (MMcf/d) 2 System Mileage Columbia Gas Transmission Co. Northeast Southwest, Appalachia DE, PA, MD, KY, NC, NJ, NY, OH, VA, WV 1,849 9,350 10,365 Transcontinental Gas Pipeline Co. Northeast, Southeast Southwest AL, GA, LA, MD, MS, NC, NY, SC, TX, VA, GM 2,670 8,466 10,450 Northern Natural Gas Co. Central, Midwest Southwest IA, IL, KS, NE, NM, OK, SD, TX, WI, GM 1,055 7,442 15,874 Texas Eastern Transmission Corp.

157

Distribution of Natural Gas: The Final Step in the Transmission Process  

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

June 2008 June 2008 1 Each day, close to 70 million customers in the United States depend upon the national natural gas distribution network, including natural gas distribution companies and pipelines, to deliver natural gas to their home or place of business (Figure 1). These customers currently consume approximately 20 trillion cubic feet (Tcf) of natural gas per annum, accounting for about 22 percent of the total energy consumed in the United States each year. This end- use customer base is 92 percent residential units, 7 percent commercial businesses, and 1 percent large industrial and electric power generation customers. 1 However, the large- volume users, though small in number, account for more than 60 percent of the natural gas used by end users.

158

Distributed user access control in sensor networks  

Science Conference Proceedings (OSTI)

User access control in sensor networks defines a process of granting user the access right to the information and resources. It is essential for the future real sensor network deployment in which sensors may provide users with different services in terms ...

Haodong Wang; Qun Li

2006-06-01T23:59:59.000Z

159

EIA - Natural Gas Pipeline Network - Largest Natural Gas Pipeline...  

Gasoline and Diesel Fuel Update (EIA)

through 20072008 with selected updates Thirty Largest U.S. Interstate Natural Gas Pipeline Systems, 2008 (Ranked by system capacity) Pipeline Name Market Regions Served Primary...

160

EIA - Natural Gas Pipeline Network - Natural Gas Pipeline Development &  

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

Pipelinesk > Development & Expansion Pipelinesk > Development & Expansion About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Natural Gas Pipeline Development and Expansion Timing | Determining Market Interest | Expansion Options | Obtaining Approval | Prefiling Process | Approval | Construction | Commissioning Timing and Steps for a New Project An interstate natural gas pipeline construction or expansion project takes an average of about three years from the time it is first announced until the new pipe is placed in service. The project can take longer if it encounters major environmental obstacles or public opposition. A pipeline development or expansion project involves several steps: Determining demand/market interest

Note: This page contains sample records for the topic "gas distribution network" 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

EIA - Natural Gas Pipeline Network - States Dependent on Interstate  

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

States Dependent on Interstate Pipelines States Dependent on Interstate Pipelines About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates States in grey which are at least 85% dependent on the interstate pipeline network for their natural gas supply are: New England - Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont Southeast - Florida, Georgia, North Carolina, South Carolina, Tennessee Northeast - Delaware, Maryland, New Jersey, New York, District of Columbia Midwest - Illinois, Indiana, Minnesota, Ohio, Wisconsin Central - Iowa, Missouri, Nebraska, South Dakota West - Arizona, California, Idaho, Nevada, Oregon, Washington Interstate Natural Gas Supply Dependency, 2007 Map: Interstate Natural Gas Supply Dependency

162

Degree Distribution in Quantum Walks on Complex Networks  

E-Print Network (OSTI)

In this theoretical study, we analyze quantum walks on complex networks, which model network-based processes ranging from quantum computing to biology and even sociology. Specifically, we analytically relate the average long time probability distribution for the location of a unitary quantum walker to that of a corresponding classical walker. The distribution of the classical walker is proportional to the distribution of degrees, which measures the connectivity of the network nodes and underlies many methods for analyzing classical networks including website ranking. The quantum distribution becomes exactly equal to the classical distribution when the walk has zero energy and at higher energies the difference, the so-called quantumness, is bounded by the energy of the initial state. We give an example for which the quantumness equals a Renyi entropy of the normalized weighted degrees, guiding us to regimes for which the classical degree-dependent result is recovered and others for which quantum effects dominate.

Mauro Faccin; Tomi Johnson; Jacob Biamonte; Sabre Kais; Piotr Migda?

2013-05-27T23:59:59.000Z

163

Model relaxations for the fuel cost minimization of steady-state gas pipeline networks  

Science Conference Proceedings (OSTI)

Natural gas, driven by pressure, is transported through pipeline network systems. As the gas flows through the network, energy and pressure are lost due to both friction between the gas and the pipes' inner wall, and heat transfer between the gas and ... Keywords: Compressor stations, Lower bounds, Natural gas, Nonconvex objective, Pipelines, Steady state, Transmission networks

Suming Wu; R. Z. Ríos-Mercado; E. A. Boyd; L. R. Scott

2000-01-01T23:59:59.000Z

164

PERCOLATION ON GRAIN BOUNDARY NETWORKS: APPLICATION TO FISSION GAS RELEASE IN NUCLEAR FUELS  

Science Conference Proceedings (OSTI)

The percolation behavior of grain boundary networks is characterized in two- and three-dimensional lattices with circular macroscale cross-sections that correspond to nuclear fuel elements. The percolation of gas bubbles on grain boundaries, and the subsequent percolation of grain boundary networks is the primary mechanism of fission gas release from nuclear fuels. Both radial cracks and radial gradients in grain boundary property distributions are correlated with the fraction of grain boundaries vented to the free surfaces. Our results show that cracks surprisingly do not significantly increase the percolation of uniform grain boundary networks. However, for networks with radial gradients in boundary properties, the cracks can considerably raise the vented grain boundary content.

Paul C. Millett

2012-02-01T23:59:59.000Z

165

Virtual network on demand: dedicating network resources to distributed scientific workflows  

Science Conference Proceedings (OSTI)

The VNOD project aims to build an on-demand network virtualization infrastructure that can deliver the unprecedented networking performance and quality of service required by modern, distributed, data-intensive applications utilized by user communities. ... Keywords: co-scheduling, network, virtualization

Dimitrios Katramatos; Sushant Sharma; Dantong Yu

2012-06-01T23:59:59.000Z

166

Distributed sensor networks with collective computation  

Science Conference Proceedings (OSTI)

Simulations of a network of N sensors have been performed. The simulation space contains a number of sound sources and a large number of sensors. Each sensor is equipped with an omni-directional microphone and is capable of measuring only the time of arrival of a signal. Sensors are able to wirelessly transmit and receive packets of information, and have some computing power. The sensors were programmed to merge all information (received packets as well as local measurements) into a 'world view' for that node. This world view is then transmitted. In this way, information can slowly diffuse across the network. One node was monitored in the network as a proxy for when information had diffused across the network. Simulations demonstrated that the energy expended per sensor per time step was approximately independent of N.

Lanman, D. R. (Douglas R.)

2001-01-01T23:59:59.000Z

167

Underground Distribution: Urban Network Practices Survey - 2012  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) has undertaken a multiyear research effort to identify and describe leading industry practices for managing urban network systems in the key functional areas of planning, design, construction, maintenance, operations, and safety. This report summarizes the results of the 2012 survey of urban network practices issued by EPRI and provides comparisons to a similar survey issued by EPRI in 2009.

2012-07-11T23:59:59.000Z

168

A distributed Newton method for Network Utility Maximization  

E-Print Network (OSTI)

Most existing work uses dual decomposition and subgradient methods to solve Network Utility Maximization (NUM) problems in a distributed manner, which suffer from slow rate of convergence properties. This work develops an ...

Wei, Ermin

169

Training of Neural Networks: Interactive Possibilities in a Distributed Framework  

Science Conference Proceedings (OSTI)

Training of Artificial Neural Networks in a Distributed Environment is considered and applied to a typical example in High Energy Physics interactive analysis. Promising results showing a reduction of the wait time from 5 hours to 5 minutes obtained ...

O. Ponce; J. Cuevas; A. Fuentes; J. Marco; R. Marco; C. Martínez-Rivero; R. Menéndez; D. Rodríguez

2002-09-01T23:59:59.000Z

170

SMPL : a network architecture for collaborative distributed services  

E-Print Network (OSTI)

This thesis proposes a network architecture, called SMPL, for the design and development of collaboration-oriented, distributed applications over the Internet. The goal of SMPL is to enable the development of applications ...

Rocha, Carols A. (Carlos Andres Rocha Penagos)

2005-01-01T23:59:59.000Z

171

Integrity and access control in untrusted content distribution networks  

E-Print Network (OSTI)

A content distribution network (CDN) makes a publisher's content highly available to readers through replication on remote computers. Content stored on untrusted servers is susceptible to attack, but a reader should have ...

Fu, Kevin E. (Kevin Edward), 1976-

2005-01-01T23:59:59.000Z

172

Using Hy+ for network management and distributed debugging  

Science Conference Proceedings (OSTI)

A network manager managing a computer network or a programmer attempting to understand and debug a distributed program both must deal with large volumes of data. Visualization is widely believed to help in these and similar tasks. We contend that visualization ...

Mariano P. Consens; Masum Z. Hasan; Alberto O. Mendelzon

1993-10-01T23:59:59.000Z

173

Distributed gang scheduling in networks of heterogenous workstations  

Science Conference Proceedings (OSTI)

The wide availability of workstation networks and the rapid evolution of workstation technology is a motivation for investigating methods of harnessing the full power of such systems. Individual workstations are not usually effectively utilized by their ... Keywords: Concurrent processing, Dynamic scheduling, Heterogenous distributed systems, Migrations, Workstation networks

Khaled Al-Saqabi; Syed Sarwar; Kassem Saleh

1997-07-01T23:59:59.000Z

174

Local network distribution practices -- a walk from MDF to customer  

Science Conference Proceedings (OSTI)

This paper explores the various components that make up the local network from the MDF in the local exchange to the customer. The dominant distribution media in the local network is copper and this will continue to hold its position as a simple and reliable ...

D. I. Monro; D. S. Butler; S. Worger

2007-07-01T23:59:59.000Z

175

Degree-distribution stability of scale-free networks  

E-Print Network (OSTI)

Based on the concept and techniques of first-passage probability in Markov chain theory, this letter provides a rigorous proof for the existence of the steady-state degree distribution of the scale-free network generated by the Barabasi-Albert (BA) model, and mathematically re-derives the exact analytic formulas of the distribution. The approach developed here is quite general, applicable to many other scale-free types of complex networks.

Zhenting Hou; Xiangxing Kong; Dinghua Shi; Guanrong Chen

2008-05-09T23:59:59.000Z

176

Optimal Network Reconfiguration for Electric Distribution Systems  

Science Conference Proceedings (OSTI)

Utility distribution systems are at the center of the smart grid revolution and, at the same time, are challenged by an aging infrastructure, legacy systems that must be integrated with new technologies, changing load characteristics (such as electric vehicles), and the requirement for integration of widespread distributed resources. Given these challenges, electricity distribution companies are under pressure to improve reliability and system performance, build the necessary infrastructure for integrati...

2012-01-31T23:59:59.000Z

177

A Key-Distribution Scheme for Wireless Home Automation Networks  

E-Print Network (OSTI)

Wireless home automation networks are one example of how wireless technologies may soon become part of our daily life, yet security in existing products is woefully inadequate. An important problem in this area is the question of secure key distribution. In this paper we present a key-distribution scheme geared towards home automation networks, but applicable to other networks with related properties as well. Our approach uses a decentralized scheme that is designed to work on resource-poor devices, allows easy addition and removal of devices and limits the workload on the end user while guaranteeing the secrecy of the exchanged keys even in the presence of subverted nodes.

Arno Wacker; Timo Heiber; Holger Cermann

2004-01-01T23:59:59.000Z

178

Distribution and Production of Oil and Gas Wells by State  

Gasoline and Diesel Fuel Update (EIA)

Distribution and Production of Oil and Gas Wells by State Distribution and Production of Oil and Gas Wells by State Distribution and Production of Oil and Gas Wells by State Release date: January 7, 2011 | Next Release Date: To be determined Distribution tables of oil and gas wells by production rate for all wells, including marginal wells, are now available for most states for the years 1995 to 2009. Graphs displaying historical behavior of well production rate are also available. To download data for all states and all years, including years prior to 1995, in an Excel spreadsheet XLS (4,000 KB). The quality and completeness of data is dependent on update lag times and the quality of individual state and commercial source databases. Undercounting of the number of wells occurs in states where data is sometimes not available at the well level but only at the lease level. States not listed below will be added later as data becomes available.

179

South Carolina Natural Gas Pipeline and Distribution Use (Million...  

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

(Million Cubic Feet) South Carolina Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

180

District of Columbia Natural Gas Pipeline and Distribution Use...  

Gasoline and Diesel Fuel Update (EIA)

Price (Dollars per Thousand Cubic Feet) District of Columbia Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3...

Note: This page contains sample records for the topic "gas distribution network" 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

Iowa Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

(Million Cubic Feet) Iowa Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 11,309...

182

New Hampshire Natural Gas Pipeline and Distribution Use Price...  

Annual Energy Outlook 2012 (EIA)

Price (Dollars per Thousand Cubic Feet) New Hampshire Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

183

New Mexico Natural Gas Pipeline and Distribution Use (Million...  

Annual Energy Outlook 2012 (EIA)

(Million Cubic Feet) New Mexico Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's...

184

North Carolina Natural Gas Pipeline and Distribution Use Price...  

Gasoline and Diesel Fuel Update (EIA)

Price (Dollars per Thousand Cubic Feet) North Carolina Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

185

West Virginia Natural Gas Pipeline and Distribution Use (Million...  

Annual Energy Outlook 2012 (EIA)

(Million Cubic Feet) West Virginia Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

186

New Jersey Natural Gas Pipeline and Distribution Use (Million...  

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

(Million Cubic Feet) New Jersey Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's...

187

District of Columbia Natural Gas Pipeline and Distribution Use...  

Annual Energy Outlook 2012 (EIA)

(Million Cubic Feet) District of Columbia Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

188

Rhode Island Natural Gas Pipeline and Distribution Use (Million...  

Annual Energy Outlook 2012 (EIA)

(Million Cubic Feet) Rhode Island Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

189

New York Natural Gas Pipeline and Distribution Use (Million Cubic...  

Annual Energy Outlook 2012 (EIA)

(Million Cubic Feet) New York Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's...

190

South Carolina Natural Gas Pipeline and Distribution Use Price...  

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

Price (Dollars per Thousand Cubic Feet) South Carolina Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

191

North Carolina Natural Gas Pipeline and Distribution Use (Million...  

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

(Million Cubic Feet) North Carolina Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

192

New Hampshire Natural Gas Pipeline and Distribution Use (Million...  

Annual Energy Outlook 2012 (EIA)

(Million Cubic Feet) New Hampshire Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

193

Illinois Natural Gas Pipeline and Distribution Use (Million Cubic...  

Gasoline and Diesel Fuel Update (EIA)

(Million Cubic Feet) Illinois Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's...

194

North Dakota Natural Gas Pipeline and Distribution Use (Million...  

Annual Energy Outlook 2012 (EIA)

(Million Cubic Feet) North Dakota Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

195

Multi-Level TESLA: Broadcast Authentication for Distributed Sensor Networks  

E-Print Network (OSTI)

Multi-Level µTESLA: Broadcast Authentication for Distributed Sensor Networks DONGGANG LIU and PENG named multi-level µTESLA based on µTESLA, a broadcast authentication protocol whose scalability is limited by its unicast-based initial parameter distribution. Multi-level µTESLA satisfies several nice

Ning, Peng

196

Different Network Topologies for Distributed Electric Damping of Beam Vibrations  

E-Print Network (OSTI)

In this work passive electric damping of structural vibrations by distributed piezoelectric transducers and electric networks is analyzed. Different distributed electric controllers are examined as finite degrees of freedom systems and their performances are compared. Modal reduction is used to optimize the electric parameters

Porfiri, M; dell'Isola, F; Pouget, J

2010-01-01T23:59:59.000Z

197

Different Network Topologies for Distributed Electric Damping of Beam Vibrations  

E-Print Network (OSTI)

In this work passive electric damping of structural vibrations by distributed piezoelectric transducers and electric networks is analyzed. Different distributed electric controllers are examined as finite degrees of freedom systems and their performances are compared. Modal reduction is used to optimize the electric parameters

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

2010-09-25T23:59:59.000Z

198

Energy Scaling Laws for Distributed Inference in Random Networks  

E-Print Network (OSTI)

The energy scaling laws of multihop data fusion networks for distributed inference are considered. The fusion network consists of randomly located sensors independently distributed according to a general spatial distribution in an expanding region. Among the class of data fusion schemes that enable optimal inference at the fusion center for Markov random field hypotheses, the minimum per-sensor energy cost is bounded below by a minimum spanning tree data fusion and above by a suboptimal scheme referred to as Data Fusion for Markov Random Field (DFMRF). Scaling laws are derived for the optimal and suboptimal fusion policies.

Animashree Anandkumar; Joseph E. Yukich; Lang Tong; Ananthram Swami

2008-01-01T23:59:59.000Z

199

Optimal study of distributed generation impact on electrical distribution networks using GA and generalized reduced gradient  

Science Conference Proceedings (OSTI)

This paper presents the effect of Distributed Generators (DG) existence in the electrical power distribution networks taking IEEE 14 and IEEE 30 bus test feeders as proposed systems. The analysis is done to examine the effect on the overall system losses ... Keywords: IEEE 14 bus system, IEEE 30 bus system and optimization, distributed generator (DG), generalized reduced gradient (GRG), genetic algorithms (GA)

Samuel Raafat Fahim; Walid Helmy; Hany M. Hasanien; M. A. L. Badr

2011-03-01T23:59:59.000Z

200

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

Science Conference Proceedings (OSTI)

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

Note: This page contains sample records for the topic "gas distribution network" 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

Analyzing money distributions in `ideal gas' models of markets  

E-Print Network (OSTI)

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

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

2005-01-01T23:59:59.000Z

202

EIA - Natural Gas Pipeline Network - Regional Definitions  

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

Definitions Map Definitions Map About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Regional Definitions The regions defined in the above map are based upon the 10 Federal Regions of the U.S. Bureau of Labor Statistics. The State groupings are as follows: Northeast Region - Federal Region 1: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. Federal Region 2: New Jersey, and New York. Federal Region 3:Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia. Southeast Region - Federal Region 4: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee. Midwest Region - Federal Region 5: Illinois, Indiana, Michigan, Minnesota, Ohio, and

203

Smard Grid Software Applications for Distribution Network Load Forecasting Eugene A. Feinberg, Jun Fei  

E-Print Network (OSTI)

of the distribution network. Keywords: load forecasting, feeder, transformer, load pocket, SmartGrid I. INTRODUCTION

Feinberg, Eugene A.

204

A File Location, Replication, and Distribution System for Network Information to Aid Network Management  

E-Print Network (OSTI)

This thesis demonstrates and evaluates the design, architecture, and implementation of a file location, replication, and distribution system built with the objective of managing information in an Internet network. The ...

Cheng, Tiffany

2010-09-22T23:59:59.000Z

205

A file location, replication, and distribution system for network information to aid network management  

E-Print Network (OSTI)

This thesis demonstrates and evaluates the design, architecture, and implementation of a file location, replication, and distribution system built with the objective of managing information in an Internet network. The ...

Cheng, Tiffany (Tiffany R.)

2010-01-01T23:59:59.000Z

206

Extensible router for multi-user quantum key distribution network  

E-Print Network (OSTI)

A feasible quantum key distribution (QKD) network scheme has been proposed with the wavelength routing. An apparatus called "quantum router", which is made up of many wavelength division multiplexers, can route the quantum signals without destroying their quantum states. Combining with existing point-to-point QKD technology, we can setup a perfectly QKD star-network. A simple characteristic and feasibility of this scheme has also been obtained.

Zhang, T; Han, Z F; Mo, X F; Guo, Guang-Can; Han, Zheng-Fu; Mo, Xiao-Fan; Zhang, Tao

2006-01-01T23:59:59.000Z

207

Brookhaven Reactor Experiment Control Facility, a distributed function computer network  

SciTech Connect

A computer network for real-time data acquisition, monitoring and control of a series of experiments at the Brookhaven High Flux Beam Reactor has been developed and has been set into routine operation. This reactor experiment control facility presently services nine neutron spectrometers and one x-ray diffractometer. Several additional experiment connections are in progress. The architecture of the facility is based on a distributed function network concept. A statement of implementation and results is presented. (auth)

Dimmler, D.G.; Greenlaw, N.; Kelley, M.A.; Potter, D.W.; Rankowitz, S.; Stubblefield, F.W.

1975-11-01T23:59:59.000Z

208

Fault Detection in Distributed Climate Sensor Networks using Dynamic Bayesian Networks  

Science Conference Proceedings (OSTI)

The Atmospheric Radiation Measurement program operated by U.S. Department of Energy is one of the largest climate research programs dedicated to the collection of long-term continuous measurements of cloud properties and other key components of the earth’s climate system. Given the critical role that collected ARM data plays in the analysis of atmospheric processes and conditions and in the enhancement and evaluation of global climate models, the production and distribution of high-quality data is one of ARM’s primary mission objectives. Fault detection in ARM’s distributed sensor network is one critical ingredient towards maintaining high quality and useful data. We are modeling ARM’s distributed sensor network as a dynamic Bayesian network where key measurements are mapped to Bayesian network variables. We then define the conditional dependencies between variables by discovering highly correlated variable pairs from historical data. The resultant dynamic Bayesian network provides an automated approach to identifying whether certain sensors are malfunctioning or failing in the distributed sensor network. A potential fault or failure is detected when an observed measurement is not consistent with its expected measurement and the observed measurements of other related sensors in the Bayesian network. We present some of our experiences and promising results with the fault detection dynamic Bayesian network.

Chin, George; Choudhury, Sutanay; Kangas, Lars J.; McFarlane, Sally A.; Marquez, Andres

2010-12-07T23:59:59.000Z

209

A Cyclic Distributed Garbage Collector for Network Objects  

E-Print Network (OSTI)

Abstract. This paper presents an algorithm for distributed garbage collection and outlines its implementation within the Network Objects system. The algorithm is based on a reference listing scheme, which is augmented by partial tracing in order to collect distributed garbage cycles. Processes may be dynamically organised into groups, according to appropriate heuristics, to reclaim distributed garbage cycles. The algorithm places no overhead on local collectors and suspends local mutators only brie y. Partial tracing of the distributed graph involves only objects thought to be part of a garbage cycle: no collaboration with other processes is required. The algorithm o ers considerable exibility, allowing expediency and fault-tolerance to be traded against completeness.

Helena Rodrigues; Richard Jones

1996-01-01T23:59:59.000Z

210

Interconnecting PV on New York City's Secondary Network Distribution System  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy (DOE) has teamed with cities across the country through the Solar America Cities (SAC) partnership program to help reduce barriers and accelerate implementation of solar energy. The New York City SAC team is a partnership between the City University of New York (CUNY), the New York City Mayor s Office of Long-term Planning and Sustainability, and the New York City Economic Development Corporation (NYCEDC).The New York City SAC team is working with DOE s National Renewable Energy Laboratory (NREL) and Con Edison, the local utility, to develop a roadmap for photovoltaic (PV) installations in the five boroughs. The city set a goal to increase its installed PV capacity from1.1 MW in 2005 to 8.1 MW by 2015 (the maximum allowed in 2005). A key barrier to reaching this goal, however, is the complexity of the interconnection process with the local utility. Unique challenges are associated with connecting distributed PV systems to secondary network distribution systems (simplified to ���¢��������networks���¢������� in this report). Although most areas of the country use simpler radial distribution systems to distribute electricity, larger metropolitan areas like New York City typically use networks to increase reliability in large load centers. Unlike the radial distribution system, where each customer receives power through a single line, a network uses a grid of interconnected lines to deliver power to each customer through several parallel circuits and sources. This redundancy improves reliability, but it also requires more complicated coordination and protection schemes that can be disrupted by energy exported from distributed PV systems. Currently, Con Edison studies each potential PV system in New York City to evaluate the system s impact on the network, but this is time consuming for utility engineers and may delay the customer s project or add cost for larger installations. City leaders would like to streamline this process to facilitate faster, simpler, and less expensive distributed PV system interconnections. To assess ways to improve the interconnection process, NREL conducted a four-part study with support from DOE. The NREL team then compiled the final reports from each study into this report. In Section 1���¢��������PV Deployment Analysis for New York City���¢��������we analyze the technical potential for rooftop PV systems in the city. This analysis evaluates potential PV power production in ten Con Edison networks of various locations and building densities (ranging from high density apartments to lower density single family homes). Next, we compare the potential power production to network loads to determine where and when PV generation is most likely to exceed network load and disrupt network protection schemes. The results of this analysis may assist Con Edison in evaluating future PV interconnection applications and in planning future network protection system upgrades. This analysis may also assist other utilities interconnecting PV systems to networks by defining a method for assessing the technical potential of PV in the network and its impact on network loads. Section 2���¢��������A Briefing for Policy Makers on Connecting PV to a Network Grid���¢��������presents an overview intended for nontechnical stakeholders. This section describes the issues associated with interconnecting PV systems to networks, along with possible solutions. Section 3���¢��������Technical Review of Concerns and Solutions to PV Interconnection in New Y

K. Anderson; M. Coddington; K. Burman; S. Hayter; B. Kroposki; and A. Watson

2009-11-30T23:59:59.000Z

211

Synchronous Ultra-Wide Band Wireless Sensors Networks for oil and gas exploration  

E-Print Network (OSTI)

Synchronous Ultra-Wide Band Wireless Sensors Networks for oil and gas exploration Stefano Savazzi1 of new oil and gas reservoir. Seismic exploration requires a large number (500 Ă· 2000 nodes, MAC and network layer to develop wireless sensors networks tailored for oil (and gas) exploration

Savazzi, Stefano

212

Electrical Resistivity Investigation of Gas Hydrate Distribution in  

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

10 10 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One Bear Place, Box 97354 Waco, TX 76798 Principal Author: John A. Dunbar Prepared for: United States Department of Energy National Energy Technology Laboratory January 15, 2011 Office of Fossil Energy 1 Electrical Resistivity Investigation of Gas Hydrate Distribution in Mississippi Canyon Block 118, Gulf of Mexico Pr oject Quar ter 17 Repor t Report Type: Quarterly Starting October 1, 2010 Ending December 31, 2010 Author: John A. Dunbar Baylor University Department of Geology January 15, 2011 DOE Award Number: DE-FC26-06NT142959

213

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

Science Conference Proceedings (OSTI)

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

214

Design of artificial neural networks for distribution feeder loss analysis  

Science Conference Proceedings (OSTI)

To enhance the efficiency for power loss analysis of voluminous distribution feeders, ANN-based simplified power loss models with the Levenberg-Marquardt (LM) algorithm have been developed for overhead feeders and underground feeders, respectively. The ... Keywords: Artificial neural network, Customer information system, Levenberg-Marquardt algorithm, Outage management system

Tsung-En Lee; Chin-Ying Ho; Chia-Hung Lin; Meei-Song Kang

2011-11-01T23:59:59.000Z

215

Distributed Network Protocol (DNP3) Security Interoperability Testing 2012  

Science Conference Proceedings (OSTI)

This project encourages the adoption of the Distributed Network Protocol (DNP3) Secure Authentication specification through three approaches:Supporting development and review of the specification by industry experts in supervisory control and data acquisition (SCADA) and cryptographyAligning the specification with international standards performing similar functions, so that there is a common industry-wide approach to SCADA securityDeveloping ...

2012-12-31T23:59:59.000Z

216

Multi-agent approach to power distribution network modelling  

Science Conference Proceedings (OSTI)

Power supply reliability has become a question of ever growing importance. Due to its geographical distribution and the high costs of maintaining electric power systems (EPS), the necessary quality cannot be achieved simply by redundancy. It is necessary ... Keywords: economic aspects of power outages, multi-agent systems, power network simulation

Miroslav Prýmek; Aleš Horák

2010-12-01T23:59:59.000Z

217

Preliminary gas turbine combustor design using a network approach  

SciTech Connect

The preliminary design process of a gas turbine combustor often involves the use of cumbersome, geometry restrictive semi-empirical models. The objective of this analysis is the development of a versatile design tool for gas turbine combustors, able to model all conceivable combustor types. A network approach is developed that divides the flow into a number of independent semi-empirical subflows. A pressure-correction methodology solves the continuity equation and a pressure-drop/flow rate relationship. The development of a full conjugate heat transfer model allows the calculation of flame tube heat loss in the presence of cooling films, annulus heat addition, and flame tube feature heat pick-up. A constrained equilibrium calculation, incorporating mixing and recirculation models, simulates combustion processes. Comparison of airflow results to a well-validated combustor design code showed close agreement. The versatility of the network solver is illustrated with comparisons to experimental data from a reverse flow combustor.

Stuttaford, P.J.; Rubini, P.A. [Cranfield Univ. (United Kingdom). School of Mechanical Engineering

1997-07-01T23:59:59.000Z

218

Gas-Fired Distributed Energy Resource Technology Characterizations  

DOE Green Energy (OSTI)

The U. S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) is directing substantial programs in the development and encouragement of new energy technologies. Among them are renewable energy and distributed energy resource technologies. As part of its ongoing effort to document the status and potential of these technologies, DOE EERE directed the National Renewable Energy Laboratory to lead an effort to develop and publish Distributed Energy Technology Characterizations (TCs) that would provide both the department and energy community with a consistent and objective set of cost and performance data in prospective electric-power generation applications in the United States. Toward that goal, DOE/EERE - joined by the Electric Power Research Institute (EPRI) - published the Renewable Energy Technology Characterizations in December 1997.As a follow-up, DOE EERE - joined by the Gas Research Institute - is now publishing this document, Gas-Fired Distributed Energy Resource Technology Characterizations.

Goldstein, L.; Hedman, B.; Knowles, D.; Freedman, S. I.; Woods, R.; Schweizer, T.

2003-11-01T23:59:59.000Z

219

Colorado Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Colorado Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.17 0.17 0.17 1970's 0.18 0.19 0.21 0.22 0.27 0.49 0.72 1.00 1.31 1.53 1980's 2.17 2.58 2.78 2.78 2.81 2.62 2.71 2.57 2.24 1.75 1990's 1.75 1.79 1.89 1.86 1.78 1.45 1.97 2.44 1.98 1.66 2000's 3.89 3.86 NA -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Colorado Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

220

Kentucky Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Kentucky Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.33 0.27 0.23 1970's 0.20 0.22 0.24 0.25 0.29 0.37 0.48 0.60 0.57 1.26 1980's 1.67 2.18 2.85 3.05 2.93 2.89 2.44 1.97 1.77 2.00 1990's 2.12 2.35 2.51 2.67 1.95 1.83 2.63 2.51 2.45 2.11 2000's 3.27 3.96 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Kentucky Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

Note: This page contains sample records for the topic "gas distribution network" 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

Louisiana Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Louisiana Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.19 0.19 0.05 1970's 0.20 0.21 0.23 0.24 0.28 0.39 0.50 0.81 0.96 1.30 1980's 1.81 2.36 2.91 3.13 3.00 2.90 2.48 1.97 1.96 2.07 1990's 1.98 2.25 2.25 2.40 1.44 1.61 2.58 2.59 2.22 1.98 2000's 3.10 3.76 NA -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Louisiana Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

222

Montana Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Montana Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.12 0.11 0.11 1970's 0.11 0.12 0.17 0.21 0.23 0.42 0.46 0.73 0.83 1.16 1980's 1.29 1.90 2.87 3.00 3.04 2.51 2.28 1.86 1.65 1.57 1990's 1.75 1.76 1.63 2.15 1.53 1.16 1.44 1.77 1.72 2.12 2000's 2.96 2.48 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Montana Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

223

Arizona Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Arizona Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.15 0.15 0.15 1970's 0.17 0.17 0.19 0.22 0.28 0.36 0.44 0.64 0.75 1.29 1980's 1.62 2.22 2.86 3.16 2.83 2.79 2.22 1.49 1.79 1.50 1990's 1.65 1.26 1.25 1.68 1.28 1.19 1.80 2.20 1.90 2.08 2000's 3.61 3.96 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Arizona Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

224

Arkansas Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Arkansas Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.18 0.18 0.18 1970's 0.19 0.22 0.24 0.26 0.30 0.43 0.52 0.71 0.86 1.12 1980's 1.78 2.12 2.63 2.94 2.97 2.78 2.46 2.64 2.07 2.30 1990's 2.17 2.06 1.78 1.64 1.61 1.45 2.41 2.42 1.58 1.38 2000's 2.41 4.09 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Arkansas Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

225

Maryland Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Maryland Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.20 0.19 0.19 1970's 0.19 0.22 0.24 0.25 0.27 0.38 0.50 0.69 0.84 1.25 1980's 2.41 2.74 3.08 3.28 3.29 3.17 3.19 2.37 2.27 2.72 1990's 2.15 1.94 1.94 2.08 2.01 1.81 2.48 2.98 2.41 2.30 2000's 3.30 4.75 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Maryland Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

226

Michigan Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Michigan Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.27 0.27 0.27 1970's 0.27 0.28 0.29 0.35 0.46 0.56 0.71 0.98 1.67 1.60 1980's 2.98 3.73 3.63 3.86 3.95 3.54 2.95 2.64 2.39 2.03 1990's 1.86 0.50 0.57 0.26 0.20 0.54 1.04 0.95 0.69 0.78 2000's 1.32 1.76 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Michigan Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

227

Oregon Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Oregon Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.22 0.21 0.22 1970's 0.22 0.32 0.28 0.35 0.47 0.61 0.82 1.77 1.98 2.53 1980's 4.41 4.75 4.90 4.19 3.90 3.13 2.35 2.00 1.90 2.09 1990's 2.16 2.32 2.16 1.71 1.86 1.77 1.77 1.80 1.84 1.98 2000's 2.74 2.91 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Oregon Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

228

Missouri Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Missouri Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.20 0.20 0.20 1970's 0.21 0.23 0.25 0.26 0.29 0.39 0.48 0.80 0.87 1.20 1980's 1.71 2.12 2.81 3.04 2.92 2.86 2.61 2.41 2.78 1.94 1990's 1.77 2.05 2.31 2.01 0.91 1.19 2.34 2.43 2.02 2.14 2000's 2.48 4.86 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Missouri Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

229

Wyoming Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Wyoming Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.14 0.16 0.16 1970's 0.17 0.17 0.18 0.24 0.24 0.51 0.65 0.69 1.36 1.59 1980's 2.05 2.51 2.91 3.05 2.99 2.76 2.56 2.36 2.06 1.88 1990's 1.95 1.85 2.48 1.92 1.52 1.31 1.54 1.84 1.86 1.87 2000's 3.21 3.04 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Wyoming Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

230

Alaska Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Alaska Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 0.26 0.27 0.28 0.28 0.30 0.35 0.57 0.58 0.50 0.14 1980's 0.73 1.13 0.60 0.86 0.61 0.63 0.61 0.65 1.01 1.13 1990's 1.08 1.32 1.12 1.11 1.11 1.24 1.17 1.34 1.23 0.82 2000's 1.34 1.84 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Alaska Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

231

Georgia Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Georgia Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.19 0.19 0.19 1970's 0.20 0.22 0.23 0.25 0.28 0.32 0.36 0.67 0.90 1.35 1980's 2.10 2.78 3.11 3.22 3.26 3.23 3.32 2.50 2.41 2.69 1990's 2.19 2.08 2.08 2.24 2.14 1.93 2.62 3.09 2.48 2.18 2000's 3.30 4.57 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Georgia Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

232

Nebraska Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Nebraska Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.14 0.15 0.15 1970's 0.16 0.16 0.18 0.19 0.24 0.32 0.42 0.57 0.73 1.10 1980's 1.36 1.81 2.35 2.56 2.55 2.51 2.40 2.20 1.77 1.86 1990's 1.70 1.43 1.54 1.79 1.34 1.33 2.10 2.54 2.01 1.96 2000's 2.81 3.56 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Nebraska Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

233

Virginia Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Virginia Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.20 0.20 0.20 1970's 0.20 0.22 0.27 0.28 0.31 0.38 0.53 0.81 1.49 1.40 1980's 2.09 2.81 3.33 3.59 3.49 3.35 3.37 2.68 2.59 2.63 1990's 2.05 1.86 1.93 2.27 2.14 1.83 2.60 3.22 2.59 2.20 2000's 2.66 5.05 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Virginia Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

234

Indiana Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Indiana Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.20 0.21 0.21 1970's 0.21 0.23 0.25 0.27 0.28 0.38 0.45 0.81 0.86 1.21 1980's 1.73 2.18 2.91 3.21 3.02 3.11 2.78 2.52 2.69 2.17 1990's 2.17 2.46 2.51 1.38 1.03 1.05 2.47 2.58 2.27 2.16 2000's 3.69 4.18 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Indiana Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

235

Distributed data management in a minicomputer network: the SEEDIS experience  

Science Conference Proceedings (OSTI)

This paper describes distributed data management aspects of SEEDIS (Socio-Economic Environmental Demographic Information System). SEEDIS is an experimental system for the retrieval, analysis, and display of geographically linked data. SEEDIS operates on nine computers in a nationwide network. Users at any location select and retrieve all data in the same way, regardless of whether they are stored locally or at a remote location. The network implementation has been substantially modified during 1983. New enhancements include: local caching of data files to improve efficiency; linking to an automatic tape library (ATL) to make larger volumes of data accessible; node independence to facilitate automatic sharing of data among autonomous SEEDIS installations without the need for central control; improvements providing robust operation despite unreliable network connections; and automatic recording of all cache transactions for subsequent statistical analysis.

Merrill, D.; McCarthy, J.; Gey, F.; Holmes, H.

1982-10-07T23:59:59.000Z

236

Trust-based clustering for multicast key distribution scheme in ad hoc network (TBCMKDS)  

Science Conference Proceedings (OSTI)

In wireless and distributed nature of ad hoc networks, security has become a more sophisticated problem than security in other networks, due to the open nature and the lack of infrastructure of such networks. TBCMKDS discussed in this paper addresses ...

V. Palanisamy; P. Annadurai

2011-06-01T23:59:59.000Z

237

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.

238

ETM (Distribution Network Automation on 10 kV cable line stations...  

Open Energy Info (EERE)

ETM (Distribution Network Automation on 10 kV cable line stations) (Smart Grid Project) Jump to: navigation, search Project Name ETM (Distribution Network Automation on 10 kV cable...

239

Quantifying fluid distribution and phase connectivity with a simple 3D cubic pore network model constrained by NMR and MICP data  

Science Conference Proceedings (OSTI)

A computer algorithm is implemented to construct 3D cubic pore networks that simultaneously honor nuclear magnetic resonance (NMR) and mercury injection capillary pressure (MICP) measurements on core samples. The algorithm uses discretized pore-body ... Keywords: Fluid distribution, Invasion percolation, Mercury injection capillary pressure, Nuclear magnetic resonance, Pore network, Relative permeability, Tight-gas sandstone

Chicheng Xu, Carlos Torres-Verdín

2013-12-01T23:59:59.000Z

240

A hybrid meta-heuristic approach for natural gas pipeline network optimization  

Science Conference Proceedings (OSTI)

In this paper we propose a hybrid heuristic solution procedure for fuel cost minimization on gas transmission systems with a cyclic network topology, that is, networks with at least one cycle containing two or more compressor station arcs. Our heuristic ... Keywords: dynamic programming, natural gas, non-convex problem, steady state, tabu search, transmission networks

Conrado Borraz-Sánchez; Roger Z. Ríos-Mercado

2005-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas distribution network" 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

A policy letter. DG-GRID Improving distribution network regulation for enhancing the share of sustainable distributed generation in Europe  

E-Print Network (OSTI)

A policy letter. DG-GRID Improving distribution network regulation for enhancing the share-generation of electricity and heat (CHP). This drives the growth of distributed generation (DG) ­ generators connected to the distribution network ­ to significant levels. The DG-GRID project1 carried out by nine European universities

242

Wind farm connection to Serbian distribution network - austere quality requirements vs. more economical power distribution  

Science Conference Proceedings (OSTI)

The paper presents the effects of severe demands on the quality of voltage that is raising the existing Serbian Technical recommendation no. 16. Possibilities of wind farm connection subject to the requirements in terms of voltage change in the transitional ... Keywords: connection, distribution network, energy efficiency, voltage quality, wind farm

Saša Mini?; Dragan Tasi?

2011-07-01T23:59:59.000Z

243

Electrical Resistivity Investigation of Gas Hydrate Distribution in  

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

July 1 - September 30, 2011 July 1 - September 30, 2011 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One Bear Place, Box 97354 Waco, TX 76798 Principal Author: John A. Dunbar Prepared for: United States Department of Energy National Energy Technology Laboratory October 14, 2011 Office of Fossil Energy 1 Electrical Resistivity Investigation of Gas Hydrate Distribution in Mississippi Canyon Block 118, Gulf of Mexico Pr oject Quar ter 20 Repor t Report Type: Quarterly Starting July 1, 2011 Ending September 30, 2011 Author: John A. Dunbar Baylor University Department of Geology October 14, 2011 DOE Award Number: DE-FC26-06NT142959

244

Electrical Resistivity Investigation of Gas Hydrate Distribution in  

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

January 1 - March 31, 2012 January 1 - March 31, 2012 Electrical Resistivity Investigation of Gas Hydrate Distribution in the Mississippi Canyon Block 118, Gulf of Mexico Submitted by: Baylor University One Bear Place, Box 97354 Waco, TX 76798 Principal Author: John A. Dunbar Prepared for: United States Department of Energy National Energy Technology Laboratory April 18, 2012 Office of Fossil Energy 1 Electrical Resistivity Investigation of Gas Hydrate Distribution in Mississippi Canyon Block 118, Gulf of Mexico Pr oject Quar ter 22 Repor t Report Type: Quarterly Starting January 1, 2012 Ending March 31, 2012 Author: John A. Dunbar Baylor University Department of Geology April 18, 2012 DOE Award Number: DE-FC26-06NT142959

245

Network reconfiguration of distributed controlled homogenous power inverter network using composite Lyapunov function based reachability bound  

Science Conference Proceedings (OSTI)

We outline a methodology to determine the reachability bound of a homogeneous interactive power network (IPN) with wireless distributed control by using a piecewise linear (PWL) model of the system. By formulating a convex optimization problem based ... Keywords: Lyapunov stability, Markov-chain model, linear matrix inequality, piecewise linear systems, reaching conditions, switching power converters

Sudip K. Mazumder; Kaustuva Acharya; Muhammad Tahir

2007-07-01T23:59:59.000Z

246

Nano Sensor Networks for Tailored Operation of Highly Efficient Gas-To-Liquid Fuels Catalysts  

E-Print Network (OSTI)

Nano Sensor Networks for Tailored Operation of Highly Efficient Gas-To-Liquid Fuels Catalysts Eisa Engineering at University of New South Wales. #12;1 Introduction Gas-to-liquid (GTL) compounds are clean fuels for converting natural gas to the liquid hydrocarbons [1]. However, the reaction is a complex network of many

New South Wales, University of

247

Decision of optimal scheduling scheme for gas field pipeline network based on hybrid genetic algorithm  

Science Conference Proceedings (OSTI)

A mathematical model of optimal scheduling scheme for natural gas pipeline network is established, which takes minimal annual operating cost of compressor stations as objective function after comprehensively considering the resources of gas field, operating ... Keywords: differential evolution algorithm, genetic algorithm, natural gas pipeline network, optimization, scheduling scheme

Wu Liu; Min Li; Yi Liu; Yuan Xu; Xinglan Yang

2009-06-01T23:59:59.000Z

248

Modelling distributed network security in a petri net- and agent-based approach  

Science Conference Proceedings (OSTI)

Distributed network security is an important concern in modern business environments. Access to critical information and areas has to be limited to authorised users. The Herold research project aims to provide a novel way of managing distributed network ... Keywords: agent-oriented methodologies, distributed network security, petri nets, software agents

Simon Adameit; Tobias Betz; Lawrence Cabac; Florian Hars; Marcin Hewelt; Michael Köhler-Bußmeier; Daniel Moldt; Dimitri Popov; José Quenum; Axel Theilmann; Thomas Wagner; Timo Warns; Lars Wüstenberg

2010-09-01T23:59:59.000Z

249

Complexity analysis of pipeline mapping problems in distributed heterogeneous networks  

Science Conference Proceedings (OSTI)

Largescale scientific applications require using various system resources to execute complex computing pipelines in distributed networks to support collaborative research. System resources are typically shared in the Internet or over dedicated connections based on their location, availability, capability, and capacity. Optimizing the network performance of computing pipelines in such distributed environments is critical to the success of these applications. We consider two types of largescale distributed applications: (1) interactive applications where a single dataset is sequentially processed along a pipeline; and (2) streaming applications where a series of datasets continuously flow through a pipeline. The computing pipelines of these applications consist of a number of modules executed in a linear order in network environments with heterogeneous resources under different constraints. Our goal is to find an efficient mapping scheme that allocates the modules of a pipeline to network nodes for minimum endtoend delay or maximum frame rate. We formulate the pipeline mappings in distributed environments as optimization problems and categorize them into six classes with different optimization goals and mapping constraints: (1) Minimum Endtoend Delay with No Node Reuse (MEDNNR), (2) Minimum Endtoend Delay with Contiguous Node Reuse (MEDCNR), (3) Minimum Endtoend Delay with Arbitrary Node Reuse (MEDANR), (4) Maximum Frame Rate with No Node Reuse or Share (MFRNNRS), (5) Maximum Frame Rate with Contiguous Node Reuse and Share (MFRCNRS), and (6) Maximum Frame Rate with Arbitrary Node Reuse and Share (MFRANRS). Here, 'contiguous node reuse' means that multiple contiguous modules along the pipeline may run on the same node and 'arbitrary node reuse' imposes no restriction on node reuse. Note that in interactive applications, a node can be reused but its resource is not shared. We prove that MEDANR is polynomially solvable and the rest are NP-complete. MEDANR, where either contiguous or noncontiguous modules in the pipeline can be mapped onto the same node, is essentially the Maximum n-hop Shortest Path problem, and can be solved using a dynamic programming method. In MEDNNR and MFRNNRS, any network node can be used only once, which requires selecting the same number of nodes for onetoone onto mapping. We show its NP-completeness by reducing from the Hamiltonian Path problem. Node reuse is allowed in MEDCNR, MFRCNRS and MFRANRS, which are similar to the Maximum n-hop Shortest Path problem that considers resource sharing. We prove their NP-completeness by reducing from the Disjoint-Connecting-Path Problem and Widest path with the Linear Capacity Constraints problem, respectively.

Lin, Ying [University of Tennessee, Knoxville (UTK); Wu, Qishi [ORNL; Zhu, Mengxia [ORNL; Rao, Nageswara S [ORNL

2009-04-01T23:59:59.000Z

250

Illinois Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Illinois Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.21 0.20 0.20 1970's 0.21 0.22 0.23 0.27 0.29 0.54 0.58 0.83 0.98 1.11 1980's 1.78 2.12 2.56 3.07 2.88 2.97 2.73 2.68 2.53 2.17 1990's 2.06 2.29 2.44 1.97 1.88 1.66 2.63 2.68 2.27 2.48 2000's 3.12 3.94 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use

251

Prediction of flow pattern of gas-liquid flow through circular microchannel using probabilistic neural network  

Science Conference Proceedings (OSTI)

The present study attempts to develop a flow pattern indicator for gas-liquid flow in microchannel with the help of artificial neural network (ANN). Out of many neural networks present in literature, probabilistic neural network (PNN) has been chosen ... Keywords: Hydrodynamics, Microchannel, Microstructure, Multiphase flow, Probabilistic neural network, Transition boundary, Turbulence

Seim Timung; Tapas K. Mandal

2013-04-01T23:59:59.000Z

252

Distributed Fiber Optic Gas Sensing for Harsh Environment  

DOE Green Energy (OSTI)

This report summarizes work to develop a novel distributed fiber-optic micro-sensor that is capable of detecting common fossil fuel gases in harsh environments. During the 32-month research and development (R&D) program, GE Global Research successfully synthesized sensing materials using two techniques: sol-gel based fiber surface coating and magnetron sputtering based fiber micro-sensor integration. Palladium nanocrystalline embedded silica matrix material (nc-Pd/Silica), nanocrystalline palladium oxides (nc-PdO{sub x}) and palladium alloy (nc-PdAuN{sub 1}), and nanocrystalline tungsten (nc-WO{sub x}) sensing materials were identified to have high sensitivity and selectivity to hydrogen; while the palladium doped and un-doped nanocrystalline tin oxide (nc-PdSnO{sub 2} and nc-SnO{sub 2}) materials were verified to have high sensitivity and selectivity to carbon monoxide. The fiber micro-sensor comprises an apodized long-period grating in a single-mode fiber, and the fiber grating cladding surface was functionalized by above sensing materials with a typical thickness ranging from a few tens of nanometers to a few hundred nanometers. GE found that the morphologies of such sensing nanomaterials are either nanoparticle film or nanoporous film with a typical size distribution from 5-10 nanometers. nc-PdO{sub x} and alloy sensing materials were found to be highly sensitive to hydrogen gas within the temperature range from ambient to 150 C, while nc-Pd/Silica and nc-WO{sub x} sensing materials were found to be suitable to be operated from 150 C to 500 C for hydrogen gas detection. The palladium doped and un-doped nc-SnO{sub 2} materials also demonstrated sensitivity to carbon monoxide gas at approximately 500 C. The prototyped fiber gas sensing system developed in this R&D program is based on wavelength-division-multiplexing technology in which each fiber sensor is identified according to its transmission spectra features within the guiding mode and cladding modes. The interaction between the sensing material and fossil fuel gas results in a refractive index change and optical absorption in the sensing layer. This induces mode coupling strength and boundary conditions changes and thereby shifts the central wavelengths of the guiding mode and cladding modes propagation. GE's experiments demonstrated that such an interaction between the fossil fuel gas and sensing material not only shifts the central wavelengths of the guide mode and cladding modes propagation, but also alters their power loss characteristics. The integrated fiber gas sensing system includes multiple fiber gas sensors, fiber Bragg grating-based temperature sensors, fiber optical interrogator, and signal processing software.

Juntao Wu

2008-03-14T23:59:59.000Z

253

2012 SG Peer Review - Enhanced DMS Capabilities Supporting Distribution Network DER - Tristan Glenwright, Boeing  

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

DE-OE0000549: Enhanced Distribution Management System Capabilities Supporting Distribution Network Distributed Energy Resources Tristan E. Glenwright The Boeing Company June 8, 2012 Copyright © 2012 Boeing. All rights reserved. December 2008 DE-OE0000549 Enhanced Distribution Management System Capabilities Supporting Distribution Network Distributed Energy Resources Objective Life-cycle Funding Summary ($K) Technical Scope 1. Determine thresholds of Distributed Energy Resource (DER) penetration in distribution grids that drive significant impacts to network stability and reliability 2. Validate ability of Boeing Distribution Management System (BDMS) advanced controls to mitigate effects of increased DER and to leverage DER and DR for SAIDI and Load Factor

254

U.S. Natural Gas Pipeline & Distribution Use (Million Cubic Feet...  

Gasoline and Diesel Fuel Update (EIA)

View History: Monthly Annual Download Data (XLS File) U.S. Natural Gas Pipeline & Distribution Use (Million Cubic Feet) U.S. Natural Gas Pipeline & Distribution Use (Million Cubic...

255

A Multi Agent-Based Framework for Simulating Household PHEV Distribution and Electric Distribution Network Impact  

DOE Green Energy (OSTI)

The variation of household attributes such as income, travel distance, age, household member, and education for different residential areas may generate different market penetration rates for plug-in hybrid electric vehicle (PHEV). Residential areas with higher PHEV ownership could increase peak electric demand locally and require utilities to upgrade the electric distribution infrastructure even though the capacity of the regional power grid is under-utilized. Estimating the future PHEV ownership distribution at the residential household level can help us understand the impact of PHEV fleet on power line congestion, transformer overload and other unforeseen problems at the local residential distribution network level. It can also help utilities manage the timing of recharging demand to maximize load factors and utilization of existing distribution resources. This paper presents a multi agent-based simulation framework for 1) modeling spatial distribution of PHEV ownership at local residential household level, 2) discovering PHEV hot zones where PHEV ownership may quickly increase in the near future, and 3) estimating the impacts of the increasing PHEV ownership on the local electric distribution network with different charging strategies. In this paper, we use Knox County, TN as a case study to show the simulation results of the agent-based model (ABM) framework. However, the framework can be easily applied to other local areas in the US.

Cui, Xiaohui [ORNL; Liu, Cheng [ORNL; Kim, Hoe Kyoung [ORNL; Kao, Shih-Chieh [ORNL; Tuttle, Mark A [ORNL; Bhaduri, Budhendra L [ORNL

2011-01-01T23:59:59.000Z

256

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

E-Print Network (OSTI)

Station Storage Storage Cost $500/kg Natural gas feedstocknatural gas steam methane reforming (SMR) –includes hydrogen production and storagefor storage, distribution or use H 2 Natural gas Figure 3

Yang, Christopher; Ogden, Joan M

2005-01-01T23:59:59.000Z

257

Developing a PC-Based GIS for the North American Natural Gas Pipeline Network  

Reports and Publications (EIA)

Natural Gas Pipeline Network (September 22-25, 1997)Conference of European StatisticiansBrighton, United KingdomAUTHOR: James Tobin

Information Center

1997-09-01T23:59:59.000Z

258

Washington Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Washington Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.22 0.21 0.22 1970's 0.22 0.24 0.28 0.33 0.44 0.65 0.78 1.67 1.92 2.38 1980's 3.92 4.34 4.72 3.98 3.72 3.12 2.52 2.11 1.99 2.06 1990's 2.04 1.98 1.89 1.37 1.84 1.78 1.77 1.89 1.76 2.03 2000's 3.07 2.82 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Washington Natural Gas Prices

259

Mississippi Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Mississippi Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.19 0.20 0.19 1970's 0.20 0.21 0.23 0.24 0.28 0.36 0.46 0.73 0.88 1.28 1980's 1.75 2.34 2.91 3.06 2.94 2.92 2.44 1.99 1.87 2.09 1990's 2.11 2.33 2.34 2.37 1.98 1.82 2.63 2.62 2.33 2.19 2000's 3.37 4.28 NA -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Mississippi Natural Gas Prices

260

Minnesota Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Minnesota Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.26 0.22 0.22 1970's 0.25 0.25 0.26 0.28 0.33 0.55 0.60 1.24 1.28 2.20 1980's 1.26 4.27 4.43 4.14 3.99 3.45 2.68 2.19 1.81 1.77 1990's 1.89 0.56 0.61 0.47 0.47 0.37 0.68 0.63 0.54 0.82 2000's 1.50 1.40 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Minnesota Natural Gas Prices

Note: This page contains sample records for the topic "gas distribution network" 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

Connecticut Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Connecticut Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.35 0.68 0.30 1970's 0.32 0.32 0.35 0.40 0.50 0.58 0.59 1.50 2.60 2.53 1980's 2.76 2.94 3.53 3.30 3.18 3.71 2.53 2.52 2.13 2.97 1990's 3.68 3.08 2.95 3.53 2.62 2.20 3.50 1.54 3.00 0.59 2000's 4.82 4.93 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Connecticut Natural Gas Prices

262

Pennsylvania Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Pennsylvania Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.25 0.24 0.24 1970's 0.25 0.29 0.31 0.32 0.40 0.54 0.60 0.92 0.94 1.42 1980's 1.89 2.34 3.02 3.20 3.09 3.06 2.63 2.38 2.36 2.35 1990's 2.57 2.41 2.41 2.83 2.47 2.00 2.71 2.72 2.08 1.97 2000's 3.59 4.76 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Pennsylvania Natural Gas Prices

263

Tennessee Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Tennessee Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.20 0.20 0.20 1970's 0.20 0.22 0.23 0.24 0.28 0.36 0.49 0.73 0.89 1.26 1980's 1.73 2.25 2.96 3.19 2.94 3.01 2.29 1.85 1.78 1.97 1990's 1.94 2.61 2.44 2.23 1.88 1.59 2.57 2.52 2.17 2.04 2000's 3.44 4.13 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Tennessee Natural Gas Prices

264

Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues  

Fuel Cell Technologies Publication and Product Library (EERE)

This study assesses the potential to deliver hydrogen through the existing natural gas pipeline network as a hydrogen and natural gas mixture to defray the cost of building dedicated hydrogen pipeline

265

Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues  

SciTech Connect

The United States has 11 distinct natural gas pipeline corridors: five originate in the Southwest, four deliver natural gas from Canada, and two extend from the Rocky Mountain region. This study assesses the potential to deliver hydrogen through the existing natural gas pipeline network as a hydrogen and natural gas mixture to defray the cost of building dedicated hydrogen pipelines.

Melaina, M. W.; Antonia, O.; Penev, M.

2013-03-01T23:59:59.000Z

266

The 4x6 network; Distribution system applications  

Science Conference Proceedings (OSTI)

An earlier paper described the 4x6 network switching scheme for power delivery systems with emphasis on substations. It was shown that the 4x6 scheme requires up to 40% fewer breakers than traditional switching schemes, and is inherently more reliable. The emphasis here is on distribution system applications. It is shown that transformer nameplate capacity can be reduced up to 33% using the 4x6 switching scheme, with equal or greater reliability. Through judicious use of open circuit breakers or other methods inherent to the 4x6 concept, short-circuit levels and ampacity requirements are reduced for further economy. Also 4x6 facilitates modular construction for distribution substations, permitting use of standardized factory assembled packages of transformers and switchgear for maximum economy.

Page, R.; Nishikawara, K.; Stromotich, F. (Substation Planning Associates, West Vancouver, BC (GB))

1990-01-01T23:59:59.000Z

267

EIA - Natural Gas Pipeline Network - Interstate Pipelines Segment  

Gasoline and Diesel Fuel Update (EIA)

Home > Natural Gas > About U.S. Natural Gas Pipelines > Interstate Natural Gas Pipeline Segment About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through...

268

Analysis on Current Status of the Gas Filling Station Networks Website |  

Open Energy Info (EERE)

Analysis on Current Status of the Gas Filling Station Networks Website Analysis on Current Status of the Gas Filling Station Networks Website Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Analysis on Current Status of the Gas Filling Station Networks Website Focus Area: Natural Gas Topics: Potentials & Scenarios Website: www.gashighway.net/default.asp?sivuID=25922&component=/modules/bbsView Equivalent URI: cleanenergysolutions.org/content/analysis-current-status-gas-filling-s Language: English Policies: Deployment Programs DeploymentPrograms: Technical Assistance This website provides country level analyses of natural gas fueling station networks, the need for further fueling stations and their optimal locations in certain countries. Proposed network expansion strategies are based on available information on vehicle travel patterns and geographic

269

Distributed Estimation in Sensor Networks with Modeling Uncertainty  

E-Print Network (OSTI)

A major issue in distributed wireless sensor networks (WSNs) is the design of efficient distributed algorithms for network-wide dissemination of information acquired by individual sensors, where each sensor, by itself, is unable to access enough data for reliable decision making. Without a centralized fusion center, network-wide reliable inferencing can be accomplished by recovering meaningful global statistics at each sensor through iterative inter-sensor message passing. In this dissertation, we first consider the problem of distributed estimation of an unknown deterministic scalar parameter (the target signal) in a WSN, where each sensor receives a single snapshot of the field. An iterative distributed least-squares (DLS) algorithm is investigated with and without the consideration of node failures. In particular, without sensor node failures it is shown that every instantiation of the DLS algorithm converges, i.e., consensus is reached among the sensors, with the limiting agreement value being the centralized least-squares estimate. With node failures during the iterative exchange process, the convergence of the DLS algorithm is still guaranteed; however, an error exists be- tween the limiting agreement value and the centralized least-squares estimate. In order to reduce this error, a modified DLS scheme, the M-DLS, is provided. The M-DLS algorithm involves an additional weight compensation step, in which a sensor performs a one-time weight compensation procedure whenever it detects the failure of a neighbor. Through analytical arguments and simulations, it is shown that the M-DLS algorithm leads to a smaller error than the DLS algorithm, where the magnitude of the improvement dependents on the network topology. We then investigate the case when the observation or sensing mode is only partially known at the corresponding nodes, perhaps, due to their limited sensing capabilities or other unpredictable physical factors. Specifically, it is assumed that the observation validity at a node switches stochastically between two modes, with mode I corresponding to the desired signal plus noise observation mode (a valid observation), and mode II corresponding to pure noise with no signal information (an invalid observation). With no prior information on the local sensing modes (valid or invalid), we introduce a learning-based distributed estimation procedure, the mixed detection-estimation (MDE) algorithm, based on closed-loop interactions between the iterative distributed mode learning and the target estimation. The online learning (or sensing mode detection) step re-assesses the validity of the local observations at each iteration, thus refining the ongoing estimation update process. The convergence of the MDE algorithm is established analytically, and the asymptotic performance analysis studies shows that, in the high signal-to-noise ratio (SNR) regime, the MDE estimation error converges to that of an ideal (centralized) estimator with perfect information about the node sensing modes. This is in contrast with the estimation performance of a naive average consensus based distributed estimator (with no mode learning), whose estimation error blows up with an increasing SNR.

Zhou, Qing

2013-05-01T23:59:59.000Z

270

Radiation detection and situation management by distributed sensor networks  

Science Conference Proceedings (OSTI)

Detection of radioactive materials in an urban environment usually requires large, portal-monitor-style radiation detectors. However, this may not be a practical solution in many transport scenarios. Alternatively, a distributed sensor network (DSN) could complement portal-style detection of radiological materials through the implementation of arrays of low cost, small heterogeneous sensors with the ability to detect the presence of radioactive materials in a moving vehicle over a specific region. In this paper, we report on the use of a heterogeneous, wireless, distributed sensor network for traffic monitoring in a field demonstration. Through wireless communications, the energy spectra from different radiation detectors are combined to improve the detection confidence. In addition, the DSN exploits other sensor technologies and algorithms to provide additional information about the vehicle, such as its speed, location, class (e.g. car, truck), and license plate number. The sensors are in-situ and data is processed in real-time at each node. Relevant information from each node is sent to a base station computer which is used to assess the movement of radioactive materials.

Jan, Frigo [Los Alamos National Laboratory; Mielke, Angela [Los Alamos National Laboratory; Cai, D Michael [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

271

Protocol for dynamic ad-hoc networks using distributed spanning trees  

Science Conference Proceedings (OSTI)

A dynamic ad-hoc network consists of a collection of mobile hosts with frequently changing network topology. We propose a distributed algorithm that adapts to the topology by utilizing spanning trees in the regions where the topology is stable, ... Keywords: ad-hoc network, distributed algorithm, routing, simulation, spanning tree

Sridhar Radhakrishnan; Gopal Racherla; Chandra N. Sekharan; Nageswara S. V. Rao; S. G. Batsell

2003-11-01T23:59:59.000Z

272

Integral gas seal for fuel cell gas distribution assemblies and method of fabrication  

DOE Patents (OSTI)

A porous gas distribution plate assembly for a fuel cell, such as a bipolar assembly, includes an inner impervious region wherein the bipolar assembly has good surface porosity but no through-plane porosity and wherein electrical conductivity through the impervious region is maintained. A hot-pressing process for forming the bipolar assembly includes placing a layer of thermoplastic sealant material between a pair of porous, electrically conductive plates, applying pressure to the assembly at elevated temperature, and allowing the assembly to cool before removing the pressure whereby the layer of sealant material is melted and diffused into the porous plates to form an impervious bond along a common interface between the plates holding the porous plates together. The distribution of sealant within the pores along the surface of the plates provides an effective barrier at their common interface against through-plane transmission of gas.

Dettling, Charles J. (E. Hanover, NJ); Terry, Peter L. (Chatham Township, Morris County, NJ)

1985-03-19T23:59:59.000Z

273

Method of fabricating an integral gas seal for fuel cell gas distribution assemblies  

DOE Patents (OSTI)

A porous gas distribution plate assembly for a fuel cell, such as a bipolar assembly, includes an inner impervious region wherein the bipolar assembly has good surface porosity but no through-plane porosity and wherein electrical conductivity through the impervious region is maintained. A hot-pressing process for forming the bipolar assembly includes placing a layer of thermoplastic sealant material between a pair of porous, electrically conductive plates, applying pressure to the assembly at elevated temperature, and allowing the assembly to cool before removing the pressure whereby the layer of sealant material is melted and diffused into the porous plates to form an impervious bond along a common interface between the plates holding the porous plates together. The distribution of sealant within the pores along the surface of the plates provides an effective barrier at their common interface against through-plane transmission of gas.

Dettling, Charles J. (E. Hanover, NJ); Terry, Peter L. (Chathum, NJ)

1988-03-22T23:59:59.000Z

274

Competition in a Network of Markets: The Natural Gas Industry  

E-Print Network (OSTI)

on the behavior of natural gas prices. Twodata sets arethe industry, natural gas prices could not be equalized4. ~d .. Figure 9. Natural Gas Spot Prices by Region

Walls, W. David

1992-01-01T23:59:59.000Z

275

OPTIMIZATION OF NATURAL GAS FIELD DEVELOPMENT USING ARTIFICIAL NEURAL NETWORKS.  

E-Print Network (OSTI)

??Field development of natural gas reservoirs is one of the main aspects of exploration and production of natural gas for oil and gas operators. After… (more)

Olatunji, Adewale

2010-01-01T23:59:59.000Z

276

Technical-Economic Calculation of Gas Pipeline Network Based on Value Engineering  

Science Conference Proceedings (OSTI)

By technical-economic calculation of the gas pipeline network, the economic diameter can be determined and the project investment can be saved. According to the principle of value engineering, a mathematical model is constructed for technical-economic ... Keywords: value engineering, gas pipeline network, function analysis, technical-economic calculation

Liu Jiayou; Zhao Yanxin

2009-12-01T23:59:59.000Z

277

Quasi-parallel network applications in real-time distribution management system  

Science Conference Proceedings (OSTI)

In modern distribution management systems (DMSs), the real-time calculation of the network's state plays an important role for the operation of the network. High sophisticated algorithms for the estimation and calculation of the system's ...

Izudin Dzafic; Hans-Theo Neisius

2012-03-01T23:59:59.000Z

278

Networked control of distributed energy resources: application to solid oxide fuel cells  

Science Conference Proceedings (OSTI)

This paper presents a model-based networked control approach for managing Distributed Energy Resources (DERs) over communication networks. As a model system, we consider a solid oxide fuel cell (SOFC) plant that communicates with the central controller ...

Yulei Sun; Sathyendra Ghantasala; Nael H. El-Farra

2009-06-01T23:59:59.000Z

279

A hybrid simulation framework to assess the impact of renewable generators on a distribution network  

Science Conference Proceedings (OSTI)

With an increasing number of small-scale renewable generator installations, distribution network planners are faced with new technical challenges (intermittent load flows, network imbalances...). Then again, these decentralized generators (DGs) present ...

Fanny Boulaire; Mark Utting; Robin Drogemuller; Gerard Ledwich; Iman Ziari

2012-12-01T23:59:59.000Z

280

Robust Distributed Routing in Dynamical Networks - Part I: Locally Responsive Policies and Weak Resilience  

E-Print Network (OSTI)

Robustness of distributed routing policies is studied for dynamical networks, with respect to adversarial disturbances that reduce the link flow capacities. A dynamical network is modeled as a system of ordinary differential ...

Como, Giacomo

Note: This page contains sample records for the topic "gas distribution network" 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

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

E-Print Network (OSTI)

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

Pota, Himanshu Roy

282

EIA - Natural Gas Pipeline Network - Regional/State ...  

U.S. Energy Information Administration (EIA)

About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates

283

EIA - Natural Gas Pipeline Network - Salt Cavern Storage ...  

U.S. Energy Information Administration (EIA)

About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates

284

EIA - Natural Gas Pipeline Network - Aquifer Storage Reservoir ...  

U.S. Energy Information Administration (EIA)

About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates

285

Expansion of the U.S. Natural Gas Pipeline Network  

U.S. Energy Information Administration (EIA)

unconventional resources. Furthermore, infrastructure additions related to imports of natural gas, including ... Office of Oil and Gas, September 2009 11

286

A strategy for the management of energy losses in a local electricity distribution network.  

E-Print Network (OSTI)

??This dissertation contains a strategy to minimize the non-technical electrical energy losses in an electrical distribution network. In order to develop the strategy, a model… (more)

Fourie, Johannes Wilhelmus

2006-01-01T23:59:59.000Z

287

Natural Gas Compressor Stations on the Interstate Pipeline Network:Developments Since 1996  

Reports and Publications (EIA)

This special report looks at the use of natural gas pipeline compressor stations on the interstate natural gas pipeline network that serves the lower 48 States. It examines the compression facilities added over the past 10 years and how the expansions have supported pipeline capacity growth intended to meet the increasing demand for natural gas.

Information Center

2007-11-07T23:59:59.000Z

288

HIGH DETAIL STATIONARY OPTIMIZATION MODELS FOR GAS NETWORKS --PART 1: MODEL COMPONENTS.  

E-Print Network (OSTI)

SCHMIDT, MARC C. STEINBACH, BERNHARD M. WILLERT Abstract. Economic reasons and the regulation of gas markets create a growing need for mathematical optimization in natural gas networks. Real life planning after fixing discrete decisions with coarsely approximated physics. 1. Introduction Natural gas plays

Steinbach, Marc

289

Fracture Modeling and Flow Behavior in Shale Gas Reservoirs Using Discrete Fracture Networks  

E-Print Network (OSTI)

Fluid flow process in fractured reservoirs is controlled primarily by the connectivity of fractures. The presence of fractures in these reservoirs significantly affects the mechanism of fluid flow. They have led to problems in the reservoir which results in early water breakthroughs, reduced tertiary recovery efficiency due to channeling of injected gas or fluids, dynamic calculations of recoverable hydrocarbons that are much less than static mass balance ones due to reservoir compartmentalization, and dramatic production changes due to changes in reservoir pressure as fractures close down as conduits. These often lead to reduced ultimate recoveries or higher production costs. Generally, modeling flow behavior and mass transport in fractured porous media is done using the dual-continuum concept in which fracture and matrix are modeled as two separate kinds of continua occupying the same control volume (element) in space. This type of numerical model cannot reproduce many commonly observed types of fractured reservoir behavior since they do not explicitly model the geometry of discrete fractures, solution features, and bedding that control flow pathway geometry. This inaccurate model of discrete feature connectivity results in inaccurate flow predictions in areas of the reservoir where there is not good well control. Discrete Fracture Networks (DFN) model has been developed to aid is solving some of these problems experienced by using the dual continuum models. The Discrete Fracture Networks (DFN) approach involves analysis and modeling which explicitly incorporates the geometry and properties of discrete features as a central component controlling flow and transport. DFN are stochastic models of fracture architecture that incorporate statistical scaling rules derived from analysis of fracture length, height, spacing, orientation, and aperture. This study is focused on developing a methodology for application of DFN to a shale gas reservoir and the practical application of DFN simulator (FracGen and NFflow) for fracture modeling of a shale gas reservoir and also studies the interaction of the different fracture properties on reservoir response. The most important results of the study are that a uniform fracture network distribution and fracture aperture produces the highest cumulative gas production for the different fracture networks and fracture/well properties considered.

Ogbechie, Joachim Nwabunwanne

2011-12-01T23:59:59.000Z

290

Pipeline and Distribution Use of Natural Gas (Summary)  

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

Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells Repressuring Nonhydrocarbon Gases...

291

Pipeline and Distribution Use of Natural Gas (Summary)  

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

Power Price Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells...

292

High performance power flow algorithm for symmetrical distribution networks with unbalanced loading  

Science Conference Proceedings (OSTI)

Size of the distribution and transmission networks to be planned or to be monitored in online systems is increasing significantly. The number of nodes of a complete distribution system exceeds several hundred thousand. As a consequence, efficient methods ...

Izudin Dzafic; Hans-Theo Neisius; Priyanka Mohapatra

2012-03-01T23:59:59.000Z

293

Expansion and Change on the U.S. Natural Gas Pipeline Network 2002  

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

Expansion and Change on the U.S. Natural Gas Pipeline Network 2002 Expansion and Change on the U.S. Natural Gas Pipeline Network 2002 EIA Home > Natural Gas > Natural Gas Analysis Publications Expansion and Change on the U.S. Natural Gas Pipeline Network 2002 Printer-Friendly Version Expansion and Change on the U.S. Natural Gas Pipeline Network - 2002 Text Box: This special report looks at the level of new capacity added to the national natural gas pipeline network in 2002 and the current capability of that network to transport supplies from production areas to U.S. markets. In addition, it examines the amount of additional capacity proposed for development during the next several years and to what degree various proposed projects will improve the deliverability of natural gas to key market areas. Questions or comments on the contents of this article should be directed to James Tobin at james.tobin@eia.doe.gov or (202) 586-4835. james.tobin@eia.doe.gov

294

Competition in a Network of Markets: The Natural Gas Industry  

E-Print Network (OSTI)

Growth in Unbundled Natural Gas Transportation Services:Purchasesby Interstate Natural Gas Pipelines Companies,1987.U.S. GPO, 1988. . Natural Gas Monthly. WashingtonD.C. : U.S.

Walls, W. David

1992-01-01T23:59:59.000Z

295

EIA - Natural Gas Pipeline Network - Region To Region System ...  

U.S. Energy Information Administration (EIA)

Home > Natural Gas > About U.S. Natural Gas Pipelines ... The EIA has determined that the informational map displays here do not raise security ...

296

EIA - Natural Gas Pipeline Network - Salt Cavern Storage Reservoir...  

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

Salt Cavern Underground Natural Gas Storage Reservoir Configuration Salt Cavern Underground Natural Gas Storage Reservoir Configuration Source: PB Energy Storage Services Inc....

297

EIA - Natural Gas Pipeline Network - Expansion Process Flow Diagram  

Annual Energy Outlook 2012 (EIA)

Natural Gas based on data through 20072008 with selected updates Development and Expansion Process For Natural Gas Pipeline Projects Figure showing the expansion process...

298

EIA - Natural Gas Pipeline Network - Aquifer Storage Reservoir...  

Annual Energy Outlook 2012 (EIA)

Aquifer Storage Reservoir Configuration About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Aquifer Underground...

299

EIA - Natural Gas Pipeline Network - Depleted Reservoir Storage...  

Annual Energy Outlook 2012 (EIA)

Depleted Reservoir Storage Configuration About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Depleted Production...

300

Competition in a Network of Markets: The Natural Gas Industry  

E-Print Network (OSTI)

Regulatory Commission (FERC). Under the NGA, pipelines wereby for gas users, the FERC authorized transportation ofcustomer-owned gas. The FERC approved transportation

Walls, W. David

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas distribution network" 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

Optimization Techniques for the Brazilian Natural Gas Network ...  

E-Print Network (OSTI)

Jun 4, 2013 ... This chain starts with exploration and production activities that, together with importation activity, correspond to gas acquisi- tion. Gas is shipped ...

302

Asynchronous group key distribution on top of the cc2420 security mechanisms for sensor networks  

Science Conference Proceedings (OSTI)

A sensor network is a network consisting of small, inexpensive, low-powered sensor nodes that communicate to complete a common task. Sensor nodes are characterized by having limited communication and computation capabilities, energy, and storage. They ... Keywords: cc2420 security, group key distribution, sensor network security

Morten Tranberg Hansen

2009-03-01T23:59:59.000Z

303

A Global Optimization Approach to a Water Distribution Network DesignProblem  

Science Conference Proceedings (OSTI)

In this paper, we address a global optimization approach to a water distribution network design problem. Traditionally, a variety of local optimization schemes have been developed for such problems, each new method discovering improved solutions for ... Keywords: Water distribution systems, network design, reformulation-linearization technique (RLT)

Hanif D. Sherali; Ernest P. Smith

1997-09-01T23:59:59.000Z

304

Incorporating Voltage Fluctuations of the Power Distribution Network into the Transient Analysis of CMOS Logic Gates  

Science Conference Proceedings (OSTI)

Decreased power supply levels have reduced the tolerance to voltage changes within power distribution networks in CMOS integrated circuits. High on-chip currents, required to charge and discharge large on-chip loads while operating at high frequencies, ... Keywords: IR drops, power distribution network, system-on-a-chip

Kevin T. Tang; Eby G. Friedman

2002-05-01T23:59:59.000Z

305

Simultaneous switching noise in on-chip CMOS power distribution networks  

Science Conference Proceedings (OSTI)

Simultaneous switching noise (SSN) has become an important issue in the design of the internal on-chip power distribution networks in current very large scale integration/ultra large scale integration (VLSI/ULSI) circuits. An inductive model is used ... Keywords: integrated circuit interconnection, on-chip inductance, power distribution network, simultaneous switching noise

Kevin T. Tang; Eby G. Friedman

2002-08-01T23:59:59.000Z

306

Distributed resource allocation with fairness for cognitive radios in wireless mobile ad hoc networks  

Science Conference Proceedings (OSTI)

Both spectrum sensing and power allocation have crucial effects on the performance of wireless cognitive ad hoc networks. In order to obtain the optimal available subcarrier sets and transmission powers, we propose in this paper a distributed resource ... Keywords: Cognitive radio, Distributed resource allocation, Mobile ad hoc networks, Power control, Spectrum allocation

Songtao Guo; Chuangyin Dang; Xiaofeng Liao

2011-08-01T23:59:59.000Z

307

Probabilistic Modelling of Plug-in Hybrid Electric Vehicle Impacts on Distribution Networks in  

E-Print Network (OSTI)

Probabilistic Modelling of Plug-in Hybrid Electric Vehicle Impacts on Distribution Networks Committee Probabilistic Modelling of Plug-in Hybrid Electric Vehicle Impacts on Distribution Networks) Departmental Member Plug-in hybrid electric vehicles (PHEVs) represent a promising future direction

Victoria, University of

308

Optimal Planning of Reactive Power Compensators for Oil Field Distribution Networks  

Science Conference Proceedings (OSTI)

The characteristic behavior of the loads of oil pumps is analyzed. An approach for low-voltage side reactive power compensators of oil field distribution networks is put forward. Based on the supplied loads of transformers, the index of maximum reduction ... Keywords: Genetic Algorithm, distribution network, oil field, reactive power compensation

Wu Xiaomeng; Yan Suli

2009-05-01T23:59:59.000Z

309

Security computing for the resiliency of protecting from internal attacks in distributed wireless sensor networks  

Science Conference Proceedings (OSTI)

Wireless sensor network (WSNs) have been making up of a mass of spatially distributed autonomous sensors to monitor physical or environmental conditions. However, security threats to WSNs become increasingly diversified, prevention based due to their ... Keywords: distributed wireless sensor networks, internal attacks, resiliency, security computing, sensor optimum deployment

Xu Huang; Dharmendra Sharma; Muhammad Ahmed

2012-09-01T23:59:59.000Z

310

Achieving distributed user access control in sensor networks  

Science Conference Proceedings (OSTI)

User access control in sensor networks defines a process of granting user an access right to the stored information. It is essential for future real sensor network deployment in which sensors may provide users with different services in terms of data ... Keywords: Elliptic Curve Cryptography, Public key cryptography, Sensor networks, User access control

Haodong Wang; Qun Li

2012-05-01T23:59:59.000Z

311

A concurrent dualband distributed impedance-matching network  

Science Conference Proceedings (OSTI)

In a number of applications, it is necessary a network which could provide well-defined impedance values at different frequencies, that is a multiband impedance matching network. In this paper, we present a novel approach for dual-band impedance matching ... Keywords: concurrent matching network, dual-band impedance matching, multiresonant circuits

Fabrício G.S. Silva; Robson Nunes de Lima; Samy M. Nascimento; Raimundo C. Silvério Freire

2011-08-01T23:59:59.000Z

312

Hierarchical distributed data classification in wireless sensor networks  

Science Conference Proceedings (OSTI)

Wireless sensor networks promise an unprecedented opportunity to monitor physical environments via inexpensive wireless embedded devices. Given the sheer amount of sensed data, efficient classification of them becomes a critical task in many sensor network ... Keywords: C4.5, Classification, Decision tree, Wireless sensor network

Xu Cheng; Ji Xu; Jian Pei; Jiangchuan Liu

2010-07-01T23:59:59.000Z

313

Leader election in distributed networks using agent based self-stabilizing technique  

E-Print Network (OSTI)

There are many variants of leader election algorithm in distributed networks. In this research, an agent based approach to leader election in distributed networks is investigated. Agents have shown to be useful in several ways. In the theoretical perspective, agents sometime help in reducing the message complexity of the system and sometimes help in lowering time complexity. In a more practical sense, agents perform operations independent of the processors, thereby lending a more flexible algorithm supporting different types of networks.

Tandon, Raghav

2003-08-01T23:59:59.000Z

314

Measurements of Gas Bubble Size Distributions in Flowing Liquid Mercury  

Science Conference Proceedings (OSTI)

ABSTRACT Pressure waves created in liquid mercury pulsed spallation targets have been shown to induce cavitation damage on the target container. One way to mitigate such damage would be to absorb the pressure pulse energy into a dispersed population of small bubbles, however, measuring such a population in mercury is difficult since it is opaque and the mercury is involved in a turbulent flow. Ultrasonic measurements have been attempted on these types of flows, but the flow noise can interfere with the measurement, and the results are unverifiable and often unrealistic. Recently, a flow loop was built and operated at Oak Ridge National Labarotory to assess the capability of various bubbler designs to deliver an adequate population of bubbles to mitigate cavitation damage. The invented diagnostic technique involves flowing the mercury with entrained gas bubbles in a steady state through a horizontal piping section with a glass-window observation port located on the top. The mercury flow is then suddenly stopped and the bubbles are allowed to settle on the glass due to buoyancy. Using a bright-field illumination and a high-speed camera, the arriving bubbles are detected and counted, and then the images can be processed to determine the bubble populations. After using this technique to collect data on each bubbler, bubble size distributions were built for the purpose of quantifying bubbler performance, allowing the selection of the best bubbler options. This paper presents the novel procedure, photographic technique, sample visual results and some example bubble size distributions. The best bubbler options were subsequently used in proton beam irradiation tests performed at the Los Alamos National Laboratory. The cavitation damage results from the irradiated test plates in contact with the mercury are available for correlation with the bubble populations. The most effective mitigating population can now be designed into prototypical geometries for implementation into an actual SNS target.

Wendel, Mark W [ORNL; Riemer, Bernie [ORNL; Abdou, Ashraf A [ORNL

2012-01-01T23:59:59.000Z

315

Natural gas network resiliency to a %22shakeout scenario%22 earthquake.  

Science Conference Proceedings (OSTI)

A natural gas network model was used to assess the likely impact of a scenario San Andreas Fault earthquake on the natural gas network. Two disruption scenarios were examined. The more extensive damage scenario assumes the disruption of all three major corridors bringing gas into southern California. If withdrawals from the Aliso Canyon storage facility are limited to keep the amount of stored gas within historical levels, the disruption reduces Los Angeles Basin gas supplies by 50%. If Aliso Canyon withdrawals are only constrained by the physical capacity of the storage system to withdraw gas, the shortfall is reduced to 25%. This result suggests that it is important for stakeholders to put agreements in place facilitating the withdrawal of Aliso Canyon gas in the event of an emergency.

Ellison, James F.; Corbet, Thomas Frank,; Brooks, Robert E. [RBAC, Inc., Sherman Oaks, CA

2013-06-01T23:59:59.000Z

316

Natural Gas Pipeline & Distribution Use - U.S. Energy ...  

U.S. Energy Information Administration (EIA)

-No Data Reported; --= Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Notes: Gas volumes ...

317

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

E-Print Network (OSTI)

year normalized weather sample; containing simulated hourly estimates of end-use electricity and natural gas consumption

Marnay, Chris

2010-01-01T23:59:59.000Z

318

An Evaluation of the Network Simulators in Large-Scale Distributed Simulations  

Science Conference Proceedings (OSTI)

This is a survey paper about the state-of-the-art in large-scale network simulation. Networks for the smart grids are characterized by millions of sensor nodes exchanging information about the status of the grid. This information exchange must be realized reliably and efficiently due to the mission critical nature of the power grid. Hence, the applications and the network protocols developed for the smart grid need go through rigorous testing and analysis before deployment. Developers usually do not have access to such a large-scale network that can be used as a controlled test-bed; therefore, network simulation becomes an essential tool for testing. Network simulation is a well studied problem in the literature and there are various widely used network simulators. These simulators can be adopted for testing applications and protocols of the smart grid. Due to the scale of these networks, parallel/distributed simulations need to be conducted. Even though most network simulators support distributed simulations, generating a large-scale network model to simulate can still be a cumbersome task. In this survey, we describe a selection of commonly used network simulators and evaluate them with respect to the following features that can aid users in distributed simulations of large-scale networks: transparency of setting up distributed simulation, automated topology generation, information hiding, lightweight routing protocols, network error simulation, evaluation of the network model during simulation and trace analysis tools. As a complementary result, we identify two issues with network simulators that can be addressed with runtime steering methods.

Ciraci, Selim; Akyol, Bora A.

2011-11-13T23:59:59.000Z

319

Hindawi Publishing Corporation International Journal of Distributed Sensor Networks  

E-Print Network (OSTI)

refining, smart factories, transport processes [1], and more recently oil and gas exploration [2 Modeling and Deployment Challenges in Oil and Gas Refinery Plants Stefano Savazzi,1 Sergio Guardiano,2. Introduction The increasing demand of oil and gas supplies frequently requires the design of very large

Savazzi, Stefano

320

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

Science Conference Proceedings (OSTI)

Lawrence Berkeley National Laboratory (LBL) is working with the California Energy Commission (CEC) to determine the role of distributed generation (DG) in greenhouse gas reductions. The impact of DG on large industrial sites is well known, and mostly, the potentials are already harvested. In contrast, little is known about the impact of DG on commercial buildings with peak electric loads ranging from 100 kW to 5 MW. We examine how DG with combined heat and power (CHP) may be implemented within the context of a cost minimizing microgrid that is able to adopt and operate various smart energy technologies, such as thermal and photovoltaic (PV) on-site generation, heat exchangers, solar thermal collectors, absorption chillers, and storage systems. We use a mixed-integer linear program (MILP) that has the minimization of a site's annual energy costs as objective. Using 138 representative commercial sites in California (CA) with existing tariff rates and technology data, we find the greenhouse gas reduction potential for California's commercial sector. This paper shows results from the ongoing research project and finished work from a two year U.S. Department of Energy research project. To show the impact of the different technologies on CO2 emissions, several sensitivity runs for different climate zones within CA with different technology performance expectations for 2020 were performed. The considered sites can contribute between 1 Mt/a and 1.8 Mt/a to the California Air Resources Board (CARB) goal of 6.7Mt/a CO2 abatement potential in 2020. Also, with lower PV and storage costs as well as consideration of a CO2 pricing scheme, our results indicate that PV and electric storage adoption can compete rather than supplement each other when the tariff structure and costs of electricity supply have been taken into consideration. To satisfy the site's objective of minimizing energy costs, the batteries will be charged also by CHP systems during off-peak and mid-peak hours and not only by PV during sunny on-peak hours.

Stadler, Michael; Marnay, Chris; Cardoso, Goncalo; Megel, Olivier; Siddiqui, Afzal; Lai, Judy

2009-08-15T23:59:59.000Z

Note: This page contains sample records for the topic "gas distribution network" 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

Network Connectivity and Price Convergency: Gas Pipeline Deregulation  

E-Print Network (OSTI)

Oklahoma E1 Paso Transwestern NGPL Tennessee TrunklinePanhandle ANK NGPLNorthern NGPL Tennessee ANR Columbia Tennessee TexasGas

De Vany, Arthur; Walls, W. David

1993-01-01T23:59:59.000Z

322

Expansion of the U.S. Natural Gas Pipeline Network  

Reports and Publications (EIA)

Additions in 2008 and Projects through 2011 - This report examines new natural gas pipeline capacity added to the U.S. natural gas pipeline system during 2008. In addition, it discusses and analyzes proposed natural gas pipeline projects that may be developed between 2009 and 2011, and the market factors supporting these initiatives.

Information Center

2009-09-30T23:59:59.000Z

323

Photovoltaic Systems Interconnected onto Network Distribution Systems--Success Stories  

DOE Green Energy (OSTI)

This report examines six case studies of photovoltaic systems integrated into secondary network systems in four major U.S. Solar America cities.

Coddington, M.; Kroposki, B.; Basso, T.; Lynn, K.; Sammon, D.; Vaziri, M.; Yohn, T.

2009-04-01T23:59:59.000Z

324

Distributed Energy-Saving Algorithms for Wireless Networks.  

E-Print Network (OSTI)

??The rapid growth of wireless networks has led to increasing interest in designing new algorithms that can efficiently reduce the energy consumption of routers and… (more)

Zazo Ruiz, Javier

2012-01-01T23:59:59.000Z

325

An Industrial Control System for the Supervision of the CERN Electrical Distribution Network  

E-Print Network (OSTI)

CERN operates a large distribution network for the supply of electricity to the particle accelerators, experiments and the associated infrastructure. The distribution network operates on voltage levels from 400 V to 400 kV with a total yearly consumption of near to 1000 GWh. In the past, the laboratory has developed an in-house control system for this network, using the technologies applied to the accelerator control system. However, CERN is now working on a project to purchase, configure and install an industrial Electrical Network Supervisor (ENS). This is a state-of-the-art industrial control system completely developed and supported by an external contractor. The system - based on a scalable and distributed architecture - will allow the installation to be performed gradually, and will be tested while the existing system is fully operational. Ultimately, the complete electrical distribution network will be supervised with this new system, the maintenance and further development of which will be the complet...

Poulsen, S

1999-01-01T23:59:59.000Z

326

EIA - Natural Gas Pipeline Network - Pipeline Capacity and Utilization  

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

Pipeline Utilization & Capacity Pipeline Utilization & Capacity About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Natural Gas Pipeline Capacity & Utilization Overview | Utilization Rates | Integration of Storage | Varying Rates of Utilization | Measures of Utilization Overview of Pipeline Utilization Natural gas pipeline companies prefer to operate their systems as close to full capacity as possible to maximize their revenues. However, the average utilization rate (flow relative to design capacity) of a natural gas pipeline system seldom reaches 100%. Factors that contribute to outages include: Scheduled or unscheduled maintenance Temporary decreases in market demand Weather-related limitations to operations

327

EIA - Natural Gas Pipeline Network - Transportation Process & Flow  

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

Process and Flow Process and Flow About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Transportation Process and Flow Overview | Gathering System | Processing Plant | Transmission Grid | Market Centers/Hubs | Underground Storage | Peak Shaving Overview Transporting natural gas from the wellhead to the final customer involves several physical transfers of custody and multiple processing steps. A natural gas pipeline system begins at the natural gas producing well or field. Once the gas leaves the producing well, a pipeline gathering system directs the flow either to a natural gas processing plant or directly to the mainline transmission grid, depending upon the initial quality of the wellhead product.

328

Quantification of Regional Green House Gas Emission Impacts and Benefits for Distributed Generation  

Science Conference Proceedings (OSTI)

The electric power generation sector contributes about one-third of all green house gas (GHG) emissions in the United States. To curb green house gas emissions, all options in the electric power value chain must be considered and evaluated. More effective use of distributed photovoltaic (PV) systems and efficient use of natural gas via use in distributed combined heat, power (CHP), and cooling systems in the end-use sector may be options to mitigating GHG emissions. This research project quantitatively e...

2007-12-14T23:59:59.000Z

329

Distributed optimal dynamic base station positioning in wireless sensor networks  

Science Conference Proceedings (OSTI)

Base station (BS) positioning is an effective method for improving the performance of wireless sensor networks (WSNs). A metric-aware optimal BS positioning and relocation mechanism for WSNs is proposed. This technique locates the BS with respect to ... Keywords: Base station placement, Base station relocation, Least-squares optimization, Wireless sensor networks

P. D. Hossein Zadeh; C. Schlegel; M. H. MacGregor

2012-01-01T23:59:59.000Z

330

Reliability by design in distributed power transmission networks  

Science Conference Proceedings (OSTI)

The system operator of a large power transmission network must ensure that power is delivered whenever there is demand in order to maintain highly reliable electric service. To fulfill this mandate, the system operator must procure reserve capacity to ... Keywords: Inventory theory, Networks, Optimization, Power transmission

Mike Chen; In-Koo Cho; Sean P. Meyn

2006-08-01T23:59:59.000Z

331

Impact of Higher Natural Gas Prices on Local Distribution ...  

U.S. Energy Information Administration (EIA)

sectors of the natural gas market between 1999 and 2006, ... rate structure and revenue collection are appropriate for each customer service category.

332

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

E-Print Network (OSTI)

utilities, the electricity tariff has time- of-use (TOU)energy loads, 4 electricity and natural gas tariff structurewhen the tariff structure and costs of electricity supply

Stadler, Michael

2010-01-01T23:59:59.000Z

333

Hydrogen leak detection - low cost distributed gas sensors  

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

leak detection that can be economically satisfied using our technology. * Due to limited refinery capacity, downtime in the oil and gas refining industry has become of critical...

334

Distributed Hydrogen Production from Natural Gas: Independent Review  

DOE Green Energy (OSTI)

Independent review report on the available information concerning the technologies needed for forecourts producing 150 kg/day of hydrogen from natural gas.

Fletcher, J.; Callaghan, V.

2006-10-01T23:59:59.000Z

335

Bayesian Networks and Geographical Information Systems for Environmental Risk Assessment for Oil and Gas Site Development  

E-Print Network (OSTI)

The objective of this work is to develop a Bayesian Network (BN) model to produce environmental risk maps for oil and gas site developments and to demonstrate the model’s scalability from a point to a collection of points. To reach this objective, a benchmark BN model was formulated as a “proof of concept” using Aquifers, Ecoregions and Land Use / Land Cover maps as local and independent input variables. This model was then used to evaluate the probabilistic geographical distribution of the Environmental Sensibility of Oil and Gas (O&G) developments for a given study area. A Risk index associated with the development of O&G operation activities based on the spatial environmental sensibility was also mapped. To facilitate the Risk assessment, these input variables (maps) were discretized into three hazard levels: high, moderate and low. A Geographical Information System (GIS) platform was used (ESRI ArcMap 10), to gather, modify and display the data for the analysis. Once the variables were defined and the hazard data was included on feature classes (layer shapefile format), Python 2.6 software was used as the computational platform to calculate the probabilistic state of all the Bayesian Network’s variables. This allowed to define Risk scenarios both on prognostic and diagnostic analysis and to measure the impact of changes or interventions in terms of uncertainty. The resulting Python – ESRI ArcMap computational script was called “BN+GIS, which populated maps describing the spatial variability of the states of the Environmental Sensibility and of the corresponding Risk index. The latter in particular, represents a tool for decision makers to choose the most suitable location for placing a drilling rig, since it integrates three fundamental environmental variables. Also, results show that is possible to back propagate the information from the Environmental Sensibility to define the inherent triggering scenarios (hazard variables). A case of study is presented to illustrate the applicability of the proposed methodology on a specific geographical setting. The Barnett Shale was chosen as a benchmark study area because sufficient information on this region was available, and the importance that it holds on the latest developments of unconventional plays in the country. The main contribution of this work relies in combining Bayesian Networks and GIS to define environmental Risk scenarios that can facilitate decision-making for O&G stakeholders such as land owners, industry operators, regulators and Non-Governmental Organizations (NGOs), before and during the development of a given site.

Varela Gonzalez, Patricia Ysolda

2013-05-01T23:59:59.000Z

336

Distributed GABBA space-time codes in amplify-and-forward relay networks  

Science Conference Proceedings (OSTI)

Cooperative communications via distributed space-time codes has been recently proposed as a way to form virtual multiple-antennas that provide dramatic gains in slow fading wireless environments. In this paper, we consider the design of practical distributed ... Keywords: cooperative communications, distributed space-time codes, performance analysis, wireless relay network

Behrouz Maham; Are Hjřrungnes; Giuseppe Abreu

2009-04-01T23:59:59.000Z

337

Method and apparatus for reducing the harmonic currents in alternating-current distribution networks  

DOE Patents (OSTI)

An improved apparatus and method reduce the harmonic content of AC line and neutral line currents in polyphase AC source distribution networks. The apparatus and method employ a polyphase Zig-Zag transformer connected between the AC source distribution network and a load. The apparatus and method also employs a mechanism for increasing the source neutral impedance of the AC source distribution network. This mechanism can consist of a choke installed in the neutral line between the AC source and the Zig-Zag transformer.

Beverly, Leon H. (Lockport, IL); Hance, Richard D. (Elburn, IL); Kristalinski, Alexandr L. (Naperville, IL); Visser, Age T. (Geneva, IL)

1996-01-01T23:59:59.000Z

338

Method and apparatus for reducing the harmonic currents in alternating-current distribution networks  

DOE Patents (OSTI)

An improved apparatus and method reduce the harmonic content of AC line and neutral line currents in polyphase AC source distribution networks. The apparatus and method employ a polyphase Zig-Zag transformer connected between the AC source distribution network and a load. The apparatus and method also employs a mechanism for increasing the source neutral impedance of the AC source distribution network. This mechanism can consist of a choke installed in the neutral line between the AC source and the Zig-Zag transformer. 23 figs.

Beverly, L.H.; Hance, R.D.; Kristalinski, A.L.; Visser, A.T.

1996-11-19T23:59:59.000Z

339

EIA - Natural Gas Pipeline Network - Regional Overview and Links  

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

Overview and Links Overview and Links About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Regional Overviews and Links to Pipeline Companies Through a series of interconnecting interstate and intrastate pipelines the transportation of natural gas from one location to another within the United States has become a relatively seamless operation. While intrastate pipeline systems often transports natural gas from production areas directly to consumers in local markets, it is the interstate pipeline system's long-distance, high-capacity trunklines that supply most of the major natural gas markets in the United States. Of the six geographic regions defined in this analysis, the Southwest Region contains the largest number of individual natural gas pipeline systems (more than 90) and the highest level of pipeline mileage (over 106,000).

340

Small Gas Turbines for Distributed Generation Markets: Technology, Products, and Business Issues  

Science Conference Proceedings (OSTI)

Small gas turbines (300 kW to 5 MW) offer an attractive way for utilities and energy service companies to generate electric power within distribution grids and for consumers to generate their own power. Distributed generation also benefits utilities by deferring or avoiding costly expansion of the power transmission and distribution system, which could allow them to offer customers lower cost power. Gas turbines process more power-generation cycle air per unit size and weight of machine than do reciproca...

2000-12-06T23:59:59.000Z

Note: This page contains sample records for the topic "gas distribution network" 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

Avoiding energy holes in wireless sensor networks with nonuniform node distribution  

E-Print Network (OSTI)

Abstract—In this paper, we investigate the theoretical aspects of the nonuniform node distribution strategy used to mitigate the energy hole problem in wireless sensor networks (WSNs). We conclude that in a circular multihop sensor network (modeled as concentric coronas) with nonuniform node distribution and constant data reporting, the unbalanced energy depletion among all the nodes in the network is unavoidable. Even if the nodes in the inner coronas of the network have used up their energy simultaneously, the ones in the outermost corona may still have unused energy. This is due to the intrinsic many-to-one traffic pattern of WSNs. Nevertheless, nearly balanced energy depletion in the network is possible if the number of nodes increases in geometric progression from the outer coronas to the inner ones except the outermost one. Based on the analysis, we propose a novel nonuniform node distribution strategy to achieve nearly balanced energy depletion in the network. We regulate the number of nodes in each corona and derive the ratio between the node densities in the adjacent đi ţ 1Ţth and ith coronas by the strategy. Finally, we propose q-Switch Routing, a distributed shortest path routing algorithm tailored for the proposed nonuniform node distribution strategy. Extensive simulations have been performed to validate the analysis. Index Terms—Wireless sensor networks, nonuniform node distribution, energy hole problem, energy-efficient routing. 1

Xiaobing Wu; Guihai Chen; Ieee Computer Society; Sajal K. Das

2008-01-01T23:59:59.000Z

342

Modeling Of Hydraulic Fracture Network Propagation In Shale Gas Reservoirs.  

E-Print Network (OSTI)

??The most effective method for stimulating shale gas reservoirs is massive hydraulic fracture treatments. Recent fracture diagnostic technologies such as microseismic technology have shown that… (more)

Ahn, Chong

2012-01-01T23:59:59.000Z

343

Models, Calculation and Optimization of Gas Networks, Equipment and Contracts for Design, Operation, Booking and Accounting  

E-Print Network (OSTI)

There are proposed models of contracts, technological equipment and gas networks and methods of their optimization. The flow in network undergoes restrictions of contracts and equipment to be operated. The values of sources and sinks are provided by contracts. The contract models represent (sub-) networks. The simplest contracts represent either nodes or edges. Equipment is modeled by edges. More sophisticated equipment is represented by sub-networks. Examples of such equipment are multi-poles and compressor stations with many entries and exits. The edges can be of different types corresponding to equipment and contracts. On such edges, there are given systems of equation and inequalities simulating the contracts and equipment. On this base, the methods proposed that allow: calculation and control of contract values for booking on future days and for accounting of sales and purchases; simulation and optimization of design and of operation of gas networks. These models and methods are realized in software syst...

Ostromuhov, Leonid A

2011-01-01T23:59:59.000Z

344

Distributed Newton-type algorithms for network resource allocation  

E-Print Network (OSTI)

Most of today's communication networks are large-scale and comprise of agents with local information and heterogeneous preferences, making centralized control and coordination impractical. This motivated much interest in ...

Wei, Ermin

2010-01-01T23:59:59.000Z

345

Distribution of Landscape Types in the Global Historical Climatology Network  

Science Conference Proceedings (OSTI)

The Global Historical Climate Network version 2 (GHCNv.2) surface temperature dataset is widely used for reconstructions such as the global average surface temperature (GAST) anomaly. Because land use and land cover (LULC) affect temperatures, it ...

Laure M. Montandon; Souleymane Fall; Roger A. Pielke Sr.; Dev Niyogi

2011-02-01T23:59:59.000Z

346

Pipeline Annual Data - 1997 Gas Distribution Annuals Data (Zip) | Data.gov  

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

7 Gas Distribution Annuals Data (Zip) 7 Gas Distribution Annuals Data (Zip) Energy Data Apps Maps Challenges Resources Blogs Let's Talk Energy Beta You are here Data.gov » Communities » Energy » Data Pipeline Annual Data - 1997 Gas Distribution Annuals Data (Zip) Dataset Summary Description Pipeline operators (for gas distribution, gas transmission, and hazardous liquid pipelines) are required to submit an annual report to the Pipeline and Hazardous Materials Safety Administration's Office of Pipeline Safety. The report includes information about the operator, a description of their system (main, services), leaks eliminated/repaired during the year, excavation damage, excess flow valves, and other information. Beginning in 2010, the form also includes information regarding integrity management programs.

347

Blending of hydrogen in natural gas distribution systems. Volume I. Gas blends flow in distribution system, mixing points, and regulatory standards. Final report, June 1, 1976--August 30, 1977. [10 and 20% hydrogen  

DOE Green Energy (OSTI)

This volume of the subject study ''Blending of Hydrogen in Natural Gas Distribution Systems'' describes studies on the determination of gas distribution system flows with hydrogen - natural gas blends, potential hydrogen admission points to gas distribution systems, and the impact of hydrogen - natural gas blends on regulatory standards for gas distribution systems. The studies resulted in the following principal findings: (1) Most existing natural gas distribution systems could adequately transport 20% blends of hydrogen by volume with little or no modification. (2) The best point of admission of the hydrogen into a natural gas distribution system would be at the meter and regulating stations supplying a particular distribution system. (3) The impact of hydrogen - natural gas blends on state regulatory standards appears to be minimal for PSE and G, but requires further study for various National Codes and for other states.

None

1977-09-01T23:59:59.000Z

348

Blending Hydrogen into Natural Gas Pipeline Networks: A Review...  

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

be introduced into the network. This would be an issue in cases where the hydrogen production system does not produce pure hydrogen. In most research programs, the focus of...

349

Task allocation and scheduling in wireless distributed computing networks  

Science Conference Proceedings (OSTI)

Wireless distributed computing (WDC) is an enabling technology that allows radio nodes to cooperate in processing complex computational tasks of an application in a distributed manner. WDC research is being driven by the fact that mobile portable computing ... Keywords: Distributed computing, Power and energy consumption, Scheduling, Task allocation

Dinesh Datla; Haris I. Volos; S. M. Hasan; Jeffrey H. Reed; Tamal Bose

2011-12-01T23:59:59.000Z

350

A network-based software distribution system for smaller organizations  

Science Conference Proceedings (OSTI)

Software distribution has been and continues to be an ongoing problem, for both internal and external distribution. CD-ROMs, the current distribution media of choice for many organizations, can become unusable due to repeated use due to damage or soiling. ...

Wilfrid J. Mirville; Donald G. Cole; Michael L. Nelson

2004-12-01T23:59:59.000Z

351

Sherlock—a system for diagnosing power distribution ring network faults  

Science Conference Proceedings (OSTI)

This paper reports the development of a software system, SHERLOCK, for fault diagnosis in power distribution ring networks. The system consists of a fault diagnosis subsystem implemented using Prolog and a user interface subsystem developed in the SmallTalk ...

Kit Po Wong; Chi Ping Tsang; Wan Yee Chan

1988-06-01T23:59:59.000Z

352

Distributed belief propagation and its generalizations for location-aware networks  

E-Print Network (OSTI)

This thesis investigates the use of generalized belief propagation (GBP) and belief propagation (BP) algorithms for distributed inference. The concept of a network region graph is introduced, along with several approximation ...

Ferner, Ulric John

2010-01-01T23:59:59.000Z

353

Product Form Steady-State Distribution for Stochastic Automata Networks with Domino Synchronizations  

Science Conference Proceedings (OSTI)

We present a new kind of synchronization which allows Continuous Time Stochastic Automata Networks (SAN) to have a product form steady-state distribution. Unlike previous models on SAN with product form solutions, our model allows synchronization between ...

Jean-Michel Fourneau

2008-08-01T23:59:59.000Z

354

Introducing artificial evolution into peer-to-peer networks with the distributed remodeling framework  

Science Conference Proceedings (OSTI)

A peer-to-peer (P2P) network is a complex system whose elements (peer nodes, or simply peers) cooperate to implement scalable distributed services. From a general point of view, the activities of a P2P system are consequences of external inputs coming ... Keywords: Artificial evolution, Complex adaptive system, Peer-to-peer network

Michele Amoretti

2013-06-01T23:59:59.000Z

355

Clustering of wireless sensor and actor networks based on sensor distribution and connectivity  

Science Conference Proceedings (OSTI)

Wireless Sensor and Actor Networks (WSANs) employ significantly more capable actor nodes that can collect data from sensors and perform application specific actions. To take these actions collaboratively at any spot in the monitored regions, maximal ... Keywords: Actor placement, Clustering, Connectivity, Energy-efficiency, Messaging overhead, Sensor distribution, Wireless sensor and actor networks

Kemal Akkaya; Fatih Senel; Brian McLaughlan

2009-06-01T23:59:59.000Z

356

Distributed grooming in multi-domain IP/MPLS-DWDM networks  

Science Conference Proceedings (OSTI)

This paper studies distributed multi-domain, multi-layer provisioning (grooming) in IP/MPLS-DWDM networks. Although many multi-domain studies have emerged over the years, these have primarily considered "homogeneous" network layers. Meanwhile, most grooming ... Keywords: inter-domain routing, multi-domain IP-DWDM, multi-domain grooming

Q. Liu; T. Frangieh; F. Xu; C. Xie; N. Ghani; A. Gumaste; T. Lehman; Chin Guok; S. Klasky

2009-11-01T23:59:59.000Z

357

Distributed backbone structure for algorithms in the SINR model of wireless networks  

Science Conference Proceedings (OSTI)

The Signal-to-Interference-and-Noise-Ratio (SINR) physical model is one of the most popular models of wireless networks. Despite of the vast amount of study done in design and analysis of centralized algorithms supporting wireless communication under ... Keywords: SINR, backbone structure, distributed algorithms, leader election, multi-message broadcast, wireless networks

Tomasz Jurdzinski; Dariusz R. Kowalski

2012-10-01T23:59:59.000Z

358

Price for Natural Gas Pipeline and Distribution Use  

U.S. Energy Information Administration (EIA)

Natural Gas Prices (Dollars per Thousand Cubic Feet) ... Pennsylvania: 3.59: 4.76: NA-----1967-2005: Rhode Island: 4.67: 5.20: NA-----1967-2005: South Carolina: 2.54 ...

359

Optimal design of a gas transmission network: A case study of the Turkish natural gas pipeline network system.  

E-Print Network (OSTI)

??Turkey is located between Europe, which has increasing demand for natural gas and the geographies of Middle East, Asia and Russia, which have rich and… (more)

Gunes, Ersin Fatih

2013-01-01T23:59:59.000Z

360

Small turbines in distributed utility application: Natural gas pressure supply requirements  

SciTech Connect

Implementing distributed utility can strengthen the local distribution system and help avoid or delay the expense of upgrading transformers and feeders. The gas turbine-generator set is an attractive option based on its low front-end capital cost, reliable performance at unmanned stations, and environmental performance characteristics. This report assesses gas turbine utilization issues from a perspective of fuel supply pressure requirements and discusses both cost and operational factors. A primary operational consideration for siting gas turbines on the electric distribution system is whether the local gas distribution company can supply gas at the required pressure. Currently available gas turbine engines require gas supply pressures of at least 150 pounds per square inch gauge, more typically, 250 to 350 psig. Few LDCs maintain line pressure in excess of 125 psig. One option for meeting the gas pressure requirements is to upgrade or extend an existing pipeline and connect that pipeline to a high-pressure supply source, such as an interstate transmission line. However, constructing new pipeline is expensive, and the small volume of gas required by the turbine for the application offers little incentive for the LDC to provide this service. Another way to meet gas pressure requirements is to boost the compression of the fuel gas at the gas turbine site. Fuel gas booster compressors are readily available as stand-alone units and can satisfactorily increase the supply pressure to meet the turbine engine requirement. However, the life-cycle costs of this equipment are not inconsequential, and maintenance and reliability issues for boosters in this application are questionable and require further study. These factors may make the gas turbine option a less attractive solution in DU applications than first indicated by just the $/kW capital cost. On the other hand, for some applications other DU technologies, such as photovoltaics, may be the more attractive option.

Goldstein, H.L.

1996-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas distribution network" 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

EIA - Natural Gas Pipeline Network - Natural Gas Imports/Exports Pipelines  

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

Pipelines Pipelines About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Natural Gas Import/Export Pipelines As of the close of 2008 the United States has 58 locations where natural gas can be exported or imported. 24 locations are for imports only 18 locations are for exports only 13 locations are for both imports and exports 8 locations are liquefied natural gas (LNG) import facilities Imported natural gas in 2007 represented almost 16 percent of the gas consumed in the United States annually, compared with 11 percent just 12 years ago. Forty-eight natural gas pipelines, representing approximately 28 billion cubic feet (Bcf) per day of capacity, import and export natural gas between the United States and Canada or Mexico.

362

EIA - Natural Gas Pipeline Network - Regional/State Underground Natural Gas  

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

Regional/State Underground Natural Gas Storage Table Regional/State Underground Natural Gas Storage Table About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Regional Underground Natural Gas Storage, Close of 2007 Depleted-Reservoir Storage Aquifer Storage Salt-Cavern Storage Total Region/ State # of Sites Working Gas Capacity (Bcf) Daily Withdrawal Capability (MMcf) # of Sites Working Gas Capacity (Bcf) Daily Withdrawal Capability (MMcf) # of Sites Working Gas Capacity (Bcf) Daily Withdrawal Capability (MMcf) # of Sites Working Gas Capacity (Bcf) Daily Withdrawal Capability (MMcf) Central Region Colorado 8 42 1,088 0 0 0 0 0 0 8 42 1,088 Iowa 0 0 0 4 77 1,060 0 0 0 4 77 1,060

363

Packet-switched intercommunication network for distributed memory, parallel processor computers  

DOE Patents (OSTI)

The Lambda network is a single stage, packet-switched interprocessor communication network for a distributed memory, parallel processor computer. Its design arises from the desired network characteristics of minimizing mean and maximum packet transfer time, local routing, expandability, deadlock avoidance, and fault tolerance. The network is based on fixed degree nodes and has O(log[sub 2n]) mean and maximum packet transfer distances where n is the number of processors. The routing method is detailed, as are methods for expandability, deadlock avoidance, and fault tolerance.

Napolitano, L.M. Jr.

1990-01-01T23:59:59.000Z

364

Packet-switched intercommunication network for distributed memory, parallel processor computers  

DOE Patents (OSTI)

The Lambda network is a single stage, packet-switched interprocessor communication network for a distributed memory, parallel processor computer. Its design arises from the desired network characteristics of minimizing mean and maximum packet transfer time, local routing, expandability, deadlock avoidance, and fault tolerance. The network is based on fixed degree nodes and has O(log{sub 2n}) mean and maximum packet transfer distances where n is the number of processors. The routing method is detailed, as are methods for expandability, deadlock avoidance, and fault tolerance.

Napolitano, L.M. Jr.

1990-12-31T23:59:59.000Z

365

Complex event processing model for distributed RFID network  

Science Conference Proceedings (OSTI)

RFID complex event processing technology, which is proved to be a powerful tool in describing relationship between different events, such as timing, causality, and membership in RFID data streams or events, is a key point of RFID researching in these ... Keywords: RFID, RFID network, complex event processing

Xiao Jia; Yuan Wenming; Wang Dong

2009-11-01T23:59:59.000Z

366

Predict soil texture distributions using an artificial neural network model  

Science Conference Proceedings (OSTI)

High-resolution soil maps are important for planning agriculture crop production, forest management, hydrological analysis and environmental protection. However, high-resolution soil maps are generally only available for small areas because obtaining ... Keywords: Artificial neural network, Clay, DEM, High-resolution soil map, Sand, Soil texture

Zhengyong Zhao; Thien Lien Chow; Herb W. Rees; Qi Yang; Zisheng Xing; Fan-Rui Meng

2009-01-01T23:59:59.000Z

367

On the energy hole problem of nonuniform node distribution in wireless sensor networks  

E-Print Network (OSTI)

Abstract — In this paper, we investigate the theoretical aspects of the nonuniform node distribution strategy in wireless sensor networks, which aims to avoid the energy hole around the sink. We find that in a circular sensor network with a nonuniform node distribution and constant data reporting, the unbalanced energy depletion among the nodes in the whole network is unavoidable. This is because although all the inner nodes have used up their energy simultaneously, the outmost part of the network may still have energy left. In spite of this fact, a suboptimal energy efficiency among the inner parts of the network is possible if the number of nodes increases with geometric proportion from the outer parts to the inner ones. In our proposed nonuniform node distribution strategy, the ratio between the node densities of the adjacent (i+1)th corona and the ith corona is equal to (2i ? 1)/q(2i +1), where q is the geometric proportion mentioned above. We also present a routing algorithm with this node distribution strategy. Simulation experiments demonstrate that when the network lifetime has ended, the nodes in the inner parts of the network achieve nearly balanced energy depletion, and only less than 10 % of the total energy is wasted. I.

Xiaobing Wu; Guihai Chen

2006-01-01T23:59:59.000Z

368

Distribution of Natural Gas: The Final Step in the Transmission Process  

Reports and Publications (EIA)

This report analyzes the role of local distribution companies (LDCs) and transmission pipelines in delivering natural gas supplies to end use customers, focusing upon the years 1996 through 2006.

Information Center

2008-06-27T23:59:59.000Z

369

An artificial neural network system for diagnosing gas turbine engine fuel faults  

DOE Green Energy (OSTI)

The US Army Ordnance Center & School and Pacific Northwest Laboratories are developing a turbine engine diagnostic system for the M1A1 Abrams tank. This system employs Artificial Neural Network (AN) technology to perform diagnosis and prognosis of the tank`s AGT-1500 gas turbine engine. This paper describes the design and prototype development of the ANN component of the diagnostic system, which we refer to as ``TEDANN`` for Turbine Engine Diagnostic Artificial Neural Networks.

Illi, O.J. Jr. [Army Ordnance Center and School, Aberdeen Proving Ground, MD (United States). Knowledge Engineering Group (KEG); Greitzer, F.L.; Kangas, L.J. [Pacific Northwest Lab., Richland, WA (United States); Reeve, T. [Expert Solutions, Stratford, CT (United States)

1994-04-01T23:59:59.000Z

370

ANALYSIS AND OPTIMIZATION OF GAS- CENTRIFUGAL SEPARATION OF URANIUM ISOTOPES BY NEURAL NETWORKS  

E-Print Network (OSTI)

Abstract- Neural networks are an attractive alternative for modeling complex problems with too many difficulties to be solved by a phenomenological model. A feed-forward neural network was used to model a gas-centrifugal separation of uranium isotopes. The prediction showed good agreement with the experimental data. An optimization study was carried out. The optimal operational condition was tested by a new experiment and a difference of less than 1 % was found.

unknown authors

2002-01-01T23:59:59.000Z

371

Edge seal for a porous gas distribution plate of a fuel cell  

DOE Patents (OSTI)

In an improved seal for a gas distribution plate of a fuel cell, a groove is provided extending along an edge of the plate. A member of resinous material is arranged within the groove and a paste comprising an immobilized acid is arranged surrounding the member and substantially filling the groove. The seal, which is impervious to the gas being distributed, is resistant to deterioration by the electrolyte of the cell.

Feigenbaum, Haim (Highland Park, NJ); Pudick, Sheldon (Sayreville, NJ); Singh, Rajindar (Ridgewood, NJ)

1984-01-01T23:59:59.000Z

372

Small-Scale, Biomass-Fired Gas Turbine Plants Suitable for Distributed and Mobile Power Generation  

Science Conference Proceedings (OSTI)

This study evaluated the cost-effectiveness of small-scale, biomass-fired gas turbine plants that use an indirectly-fired gas turbine cycle. Such plants were originally thought to have several advantages for distributed generation, including portability. However, detailed analysis of two designs revealed several problems that would have to be resolved to make the plants feasible and also determined that a steam turbine cycle with the same net output was more economic than the gas turbine cycle. The incre...

2007-01-19T23:59:59.000Z

373

Power allocation strategies for distributed space-time codes in two-way relay networks  

Science Conference Proceedings (OSTI)

We study a two-way relay network (TWRN), where distributed space-time codes are constructed across multiple relay terminals in an amplify-and-forward mode. Each relay transmits a scaled linear combination of its received symbols and their conjugates, ... Keywords: distributed space-time codes, power allocation, two-way relay channel

Wenjin Wang; Shi Jin; Xiqi Gao; Kai-Kit Wong; Matthew R. McKay

2010-10-01T23:59:59.000Z

374

Voltage control scheme in distribution network with double feed induction generator wind farm  

Science Conference Proceedings (OSTI)

This paper presents the particle swarm optimization (PSO) for reactive power and voltage control (Volt/Var Control) in distribution system considering DFIG wind farm. In this paper, the reactive power output of DFIG wind farm has been considered as the ... Keywords: DFIG wind turbine, Volt/Var control, distribution network, optimization, particle swarm, wind farm

Jingjing Zhao; Xin Li; Jutao Hao

2009-08-01T23:59:59.000Z

375

From Waste to Hydrogen: An Optimal Design of Energy Production and Distribution Network  

E-Print Network (OSTI)

1 From Waste to Hydrogen: An Optimal Design of Energy Production and Distribution Network Nathan and distribution systems for hydrogen production from agricultural residues, which is a representative green energy of producing clean energy from renewable resources. This paper focuses on the optimal design of the production

Fan, Yueyue

376

Weight optimisation for iterative distributed model predictive control applied to power networks  

Science Conference Proceedings (OSTI)

This paper presents a weight tuning technique for iterative distributed Model Predictive Control (MPC). Particle Swarm Optimisation (PSO) is used to optimise both the weights associated with disturbance rejection and those associated with achieving consensus ... Keywords: Distributed model predictive control, Multi-agent, Particle swarm optimisation, Power networks, Smart grids, Weight tuning

Paul Mc Namara; Rudy R. Negenborn; Bart De Schutter; Gordon Lightbody

2013-01-01T23:59:59.000Z

377

An Integrated Modeling Framework for Exploring Network Reconfiguration of Distributed Controlled Homogenous Power Inverter Network using Composite Lyapunov Function Based Reachability Bound  

Science Conference Proceedings (OSTI)

We describe an integrated modeling framework for an interactive power network (IPN) consisting of a power network (PN) and a wireless communication network (WCN). The PN is modeled using a set of piecewise linear (PWL) equations. The WCN is modeled using ... Keywords: Lyapunov stability, Markov-chain model, communication network, distributed control systems, electric power network, joint optimization, linear matrix inequality, optimization, piecewise linear systems, reaching conditions, stability, switching power converters, wireless

Sudip K. Mazumder; Muhammad Tahir; Kaustuva Acharya

2010-02-01T23:59:59.000Z

378

Impact of Higher Natural Gas Prices on Local Distribution Companies and Residential Customers  

Reports and Publications (EIA)

This report examines some of the problems faced by natural gas consumers as a result of increasing heating bills in recent years and problems associated with larger amounts of uncollectible revenue and lower throughput for the local distribution companies (LDCs) supplying the natural gas.

Lejla Alic

2007-08-15T23:59:59.000Z

379

Challenges: Building Scalable and Distributed Underwater Wireless Sensor Networks (UWSNs) for Aquatic Applications  

E-Print Network (OSTI)

Large-scale Underwater Wireless Sensor Network (UWSN) is a novel networking paradigm to explore the uninhabited and complex oceans. However, the characteristics of UWSNs, such as huge propagation delay, floating node mobility, and limited acoustic link capacity, are significantly different from ground-based wireless sensor networks and existing small scale Underwater Acoustic Networks (UANs). The novel networking paradigm poses inter-disciplinary challenges that will require new technological solutions. In particular, in this technical report we adopt a top-down approach to explore the research challenges in UWSN design. Along the layered protocol stack, we roughly go down from the top application layer to the bottom physical layer. At each layer, a set of new design intricacies are studied. The conclusion is that building scalable and distributed UWSNs is a challenge that must be answered by inter-disciplinary efforts of acoustic communications, signal processing and mobile acoustic network protocol design. I.

Jun-hong Cui; Jiejun Kong; Mario Gerla; Shengli Zhou

2005-01-01T23:59:59.000Z

380

Flue Gas Desulfurization Gypsum Agricultural Network: Indiana Kingman Research Station (Corn and Soybeans)  

Science Conference Proceedings (OSTI)

Flue gas desulfurization gypsum (FGDG) is an excellent source of gypsum (CaSO4•2H2O) that is created when sulfur dioxide is removed from the exhaust gases during the combustion of coal for energy production. Research on FGDG has been conducted as part of the Flue Gas Desulfurization Gypsum Agricultural Network program sponsored by the Electric Power Research Institute in collaboration with individual utilities, the U.S. EPA, the United States Department of Agriculture’s Agricultural ...

2013-10-07T23:59:59.000Z

Note: This page contains sample records for the topic "gas distribution network" 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

EIA - Natural Gas Pipeline Network - Natural Gas Import/Export Locations  

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

Pipelines > Import/Export Location List Pipelines > Import/Export Location List About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Currently, there are 58 locations at which natural gas can be exported or imported into the United States, including 9 LNG (liquefied natural gas) facilities in the continental United States and Alaska (There is a tenth U.S. LNG import facility located in Puerto Rico). At 28 of these locations natural gas or LNG currently can only be imported; while at 17 they may only be exported (1 LNG export facility is located in Alaska). At 13 of the 58 locations natural gas may, and sometimes does, flow in both directions, although at each of these sites the flow is primarily either import or export.

382

Distributed MAC protocol for networks with multipacket reception capability and spatially distributed nodes  

E-Print Network (OSTI)

The physical layer of future wireless networks will be based on novel radio technologies such as Ultra-Wideband (UWB) and Multiple-Input Multiple-Output (MIMO). One of the important capabilities of such technologies is the ...

Celik, Guner Dincer

2007-01-01T23:59:59.000Z

383

Three Phase Probabilistic Load Flow in Radial Distribution Networks  

SciTech Connect

Probabilistic load flow is a helpful tool in accounting for inconsistent or unknown loads and generation. This is especially true with the push for renewable generation and demand response. This paper proposes an improved version of the probabilistic load flow solution for balanced distribution systems and takes the next step by applying it to unbalanced three phase systems. It is validated by comparing the solutions to that obtained by Monte Carlo simulation. The proposed method provides an accurate and practical way for finding the solution to the stochastic problems occurring in power distribution system analysis today.

Melhorn, Alexander C [ORNL; Dimitrovski, Aleksandar D [ORNL; Tomsovic, Kevin L [ORNL

2012-01-01T23:59:59.000Z

384

Network of Excellence in Distributed and Dependable Computing Systems  

E-Print Network (OSTI)

This document presents a CaberNet vision of Research and Technology Development (RTD) in Distributed and Dependable systems. It takes as a basis the state-of-the-art (SOTA) Report prepared by John Bates in 1998: this document was commissioned by CaberNet as a first step towards the definition of a roadmap for European research in distributed and dependable systems. This report overviewed the developments in the main areas to which the CaberNet members made outstanding contributions, which were the most important at the time of its preparation, and analysed the most important trends in R&D in those areas

Alexander Romanovsky (ed); Edited Alexander Romanovsky

2004-01-01T23:59:59.000Z

385

The Impact of Varying Natural Gas Prices on the Potential Distributed Resources Market  

Science Conference Proceedings (OSTI)

Studies of the potential market for distributed resources (DR) have typically assumed that long-term gas rates will increase in a gradual and uniform fashion; however, natural gas rates can peak at very high rates as they did in late 2000 and early 2001. This project studied the response of the DR market to changes in future gas prices in a range of plausible scenarios. It suggests that relatively high natural gas prices and non-uniform annual price fluctuations may strongly affect the size and character...

2002-11-14T23:59:59.000Z

386

Processing dipole acoustic logging data to image fracture network in shale gas reservoirs  

Science Conference Proceedings (OSTI)

A recent advance in borehole remote acoustic reflection imaging is the utilization of a dipole acoustic system in a borehole to emit and receive elastic waves to and from a remote geologic reflector in formation. An important application of this new technique is the delineation of fracture network in shale gas reservoirs

Zhuang Chunxi; Su Yuanda; Tang Xiaoming

2012-01-01T23:59:59.000Z

387

Distributed and collaborative learning objects repositories on grid networks  

Science Conference Proceedings (OSTI)

The paper deals with the design and a prototype implementation of a collaborative repository of scientific learning objects based on an efficient mechanism of filing and retrieving distributed knowledge on the Grid. The proposed repository can deal with ... Keywords: chemistry, grid, knowledge, learning objects, repository

Simonetta Pallottelli; Sergio Tasso; Nicola Pannacci; Alessandro Costantini; Noelia Faginas Lago

2010-03-01T23:59:59.000Z

388

The Globe Distribution Network A. Bakker, E. Amade, G. Ballintijn  

E-Print Network (OSTI)

software packages, such as the GNU C compiler, Linux distributions and share- ware. We intend, however packages efficient by using the Globe middleware. After this explanation we present the architecture of the GDN in Section 4. In Section 5 we describe the naming of software packages and our proto- type

Kuz, Ihor

389

The Globe Distribution Network A. Bakker, E. Amade, G. Ballintijn  

E-Print Network (OSTI)

software packages, such as the GNU C compiler, Linux distributions and share­ ware. We intend, however packages efficient by using the Globe middleware. After this explanation we present the architecture of the GDN in Section 4. In Section 5 we describe the naming of software packages and our proto­ type

Kuz, Ihor

390

Fibre optical measuring network based on quasi-distributed amplitude sensors for detecting deformation loads  

SciTech Connect

A new design of a sensitive element for a fibre optical sensor of deformation loads is proposed. A distributed fibre optical measuring network, aimed at determining both the load application point and the load mass, has been developed based on these elements. It is shown that neural network methods of data processing make it possible to combine quasi-distributed amplitude sensors of different types into a unified network. The results of the experimental study of a breadboard of a fibre optical measuring network are reported, which demonstrate successful reconstruction of the trajectory of a moving object (load) with a spatial resolution of 8 cm, as well as the load mass in the range of 1 - 10 kg with a sensitivity of 0.043 kg{sup -1}. (laser optics 2012)

Kul'chin, Yurii N; Kolchinskiy, V A; Kamenev, O T; Petrov, Yu S

2013-02-28T23:59:59.000Z

391

Pipeline Annual Data - 1996 Gas Distribution Annuals Data (Zip) | Data.gov  

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

Distribution Annuals Data (Zip) Distribution Annuals Data (Zip) Energy Data Apps Maps Challenges Resources Blogs Let's Talk Energy Beta You are here Data.gov » Communities » Energy » Data Pipeline Annual Data - 1996 Gas Distribution Annuals Data (Zip) Dataset Summary Description Pipeline operators (for gas distribution, gas transmission, and hazardous liquid pipelines) are required to submit an annual report to the Pipeline and Hazardous Materials Safety Administration's Office of Pipeline Safety. The report includes information about the operator, a description of their system (main, services), leaks eliminated/repaired during the year, excavation damage, excess flow valves, and other information. Beginning in 2010, the form also includes information regarding integrity management programs.

392

Multi-Agent Approach to Electrical Distribution Networks Control Sbastien Rumley*, Elvira Kgi*, Hugh Rudnick, Alain Germond*  

E-Print Network (OSTI)

distribution networks is proposed. Traditionally, the medium-voltage part of the electrical grid is operatedMulti-Agent Approach to Electrical Distribution Networks Control Sébastien Rumley*, Elvira Kägi (i.e. bulk distribution) is too complex. Furthermore, the great amount of data to be handled on- line

Catholic University of Chile (Universidad CatĂłlica de Chile)

393

Investment and Efficiency under Incentive Regulation: The Case of the Norwegian Electricity Distribution Networks  

E-Print Network (OSTI)

of Norway (SusGrid - Sustainable Grid Development Project) are gratefully acknowledged. EPRG 1306 1 1 Introduction In recent years, achieving a sustainable energy sector, security of supply, and reliability of service have emerged as overarching energy... We use “total number of customers” (residential plus recreational homes) and “energy density” (energy distributed per Km length of network) as outputs. Numbers of customers are commonly used in efficiency analysis of electricity networks (e...

Poudineh, Rahmatallah; Jamasb, Tooraj

2013-04-01T23:59:59.000Z

394

Management of Active Distribution Networks with High Penetration of Distributed Generation.  

E-Print Network (OSTI)

??The penetration of distributed generation and wind power in particular is expected to increase significantly over the coming years, and a huge shift in control,… (more)

Arram, Ahmed

2012-01-01T23:59:59.000Z

395

Influence of gas flow rate on liquid distribution in trickle-beds using perforated plates as liquid distributors  

E-Print Network (OSTI)

Influence of gas flow rate on liquid distribution in trickle- beds using perforated plates devices and a liquid collector were used to study the influence of the gas flow rate on liquid in liquid distribution were evidenced. Indeed, the obtained results show that the influence of gas flow rate

Paris-Sud XI, Université de

396

U.S. Distribution and Production of Oil and Gas Wells | OpenEI  

Open Energy Info (EERE)

Distribution and Production of Oil and Gas Wells Distribution and Production of Oil and Gas Wells Dataset Summary Description Distribution tables of oil and gas wells by production rate for all wells, including marginal wells, are available from the EIA for most states for the years 1919 to 2009. Graphs displaying historical behavior of well production rate are also available. The quality and completeness of data is dependent on update lag times and the quality of individual state and commercial source databases. Undercounting of the number of wells occurs in states where data is sometimes not available at the well level but only at the lease level. States not listed below will be added later as data becomes available. Source EIA Date Released January 07th, 2011 (3 years ago) Date Updated Unknown Keywords

397

Minimization of Blast furnace Fuel Rate by Optimizing Burden and Gas Distribution  

Science Conference Proceedings (OSTI)

The goal of the research is to improve the competitive edge of steel mills by using the advanced CFD technology to optimize the gas and burden distributions inside a blast furnace for achieving the best gas utilization. A state-of-the-art 3-D CFD model has been developed for simulating the gas distribution inside a blast furnace at given burden conditions, burden distribution and blast parameters. The comprehensive 3-D CFD model has been validated by plant measurement data from an actual blast furnace. Validation of the sub-models is also achieved. The user friendly software package named Blast Furnace Shaft Simulator (BFSS) has been developed to simulate the blast furnace shaft process. The research has significant benefits to the steel industry with high productivity, low energy consumption, and improved environment.

Dr. Chenn Zhou

2012-08-15T23:59:59.000Z

398

Benchmarking Distributed Generation Cost of Electricity and Characterization of Green House Gas Emission  

Science Conference Proceedings (OSTI)

Understanding the economic competitiveness and green house gas (GHG) footprint of all energy supply-side options has been identified by EPRI advisors as a key priority. This project benchmarks the cost of electricity and characterizes the GHG footprint of distributed generation (DG) options in various applications. DG technologies include small gas turbines, spark-ignited and diesel internal combustion engines, micro turbines, several types of fuel cells, Stirling engines, and photovoltaic systems.

2009-03-26T23:59:59.000Z

399

Exponential stability preservation in discrete-time analogues of artificial neural networks with distributed delays  

Science Conference Proceedings (OSTI)

This paper demonstrates that there is a discrete-time analogue which does not require any restriction on the size of the time-step in order to preserve the exponential stability of an artificial neural network with distributed delays. The analysis exploits ... Keywords: 34K28, 39A11, 39A12, 92B20, Discrete-time analogues, Distributed delays, Exponential stability, Halanay inequalities, Lyapunov sequences

Sannay Mohamad

2008-05-01T23:59:59.000Z

400

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

E-Print Network (OSTI)

.g., water heater) as well as ESS (e.g., battery systems) can be used to reduce the reverse energy flow) from peak hours (e.g., 7 pm - 10 pm) to high solar radiation hours (e.g., 10 am - 2 pm) in order, the power may flow from households to the substation in the distribution network during high solar radiation

Wong, Vincent

Note: This page contains sample records for the topic "gas distribution network" 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

Design and analysis of an adaptive object replication algorithm in distributed network systems  

Science Conference Proceedings (OSTI)

In this paper, we propose an adaptive object replication algorithm for distributed network systems, analyze its performance from both theoretical and experimental standpoints. We first present a mathematical cost model that considers all the costs associated ... Keywords: Allocation scheme, Communication cost, Competitive analysis, I/O cost, Object replication

Lin Wujuan; Bharadwaj Veeravalli

2008-06-01T23:59:59.000Z

402

Molldeing and Simulation of a Small-Scale Wind Turbine Generator in Isolated Distribution Network  

Science Conference Proceedings (OSTI)

In recent years, the wind energy capacity is rapidly increasing in importance as a share of electricity supply on worldwide basis. A small-scale wind turbine generator is usually installed in an isolated distribution network. This paper aims to justzjj ...

2007-09-01T23:59:59.000Z

403

Joint optimization algorithm for network reconfiguration and reactive power control of wind farm in distribution system  

Science Conference Proceedings (OSTI)

In recent years, the number of small size wind farms used as DG sources located within the distribution system are rapidly increasing. Wind farm made up with doubly fed induction generators (DFIG) is proposed in this paper as the continuous reactive ... Keywords: DFIG wind turbine, network reconfiguration, particle swarm optimization, reactive power control, wind farm

Jingjing Zhao; Xin Li; Jiping Lu; Congli Zhang

2009-02-01T23:59:59.000Z

404

Distributed control of hexapod wall climbing robot implementing Controller Area Network (CAN)  

Science Conference Proceedings (OSTI)

Service robots have been used in tasks that require navigation of horizontal or near horizontal surfaces. Some applications require service robots that are capable of moving along a vertical plane e.g., wall painting, window washing, non-destructive ... Keywords: CAN, biomechatronics, controller area networks, distributed control, hexapod robots, mechatronics, robot actuators, robot design, robot safety, robot sensors, service robots, wall climbing robots

Nkgatho Sylvester Tale; Glen Bright; W. L. Xu

2005-07-01T23:59:59.000Z

405

Distributed point coordination function for IEEE 802.11 wireless ad hoc networks  

Science Conference Proceedings (OSTI)

The Distributed Point Coordination Function (DPCF) is presented in this paper as a novel Medium Access Control Protocol (MAC) for wireless ad hoc networks. DPCF extends the operation of the Point Coordination Function (PCF) defined in the IEEE 802.11 ... Keywords: DCF, DPCF, DQCA, DQMAN, IEEE 802.11, MAC, PCF

J. Alonso-Zárate; C. Crespo; Ch. Skianis; L. Alonso; Ch. Verikoukis

2012-05-01T23:59:59.000Z

406

Distributed algorithms for resource allocation of physical and transport layers in wireless cognitive ad hoc networks  

Science Conference Proceedings (OSTI)

In this paper, by integrating together congestion control, power control and spectrum allocation, a distributed algorithm is developed to maximize the aggregate source utility and increase end-to-end throughput. Despite the inherent difficulties of non-convexity ... Keywords: Cognitive ad hoc network, Congestion control, Convex optimization, Cross-layer design, Dual decomposition, Power control, Spectrum allocation

Songtao Guo; Chuangyin Dang; Xiaofeng Liao

2011-02-01T23:59:59.000Z

407

Market-based resource allocation for distributed data processing in wireless sensor networks  

Science Conference Proceedings (OSTI)

In recent years, improved wireless technologies have enabled the low-cost deployment of large numbers of sensors for a wide range of monitoring applications. Because of the computational resources (processing capability, storage capacity, etc.) collocated ... Keywords: Wireless sensor networks, distributed algorithms, optimization, pricing

Andrew T. Zimmerman; Jerome P. Lynch; Frank T. Ferrese

2013-03-01T23:59:59.000Z

408

Reclaimed water distribution network design under temporal and spatial growth and demand uncertainties  

Science Conference Proceedings (OSTI)

A significant-but underutilized-water resource is reclaimed water, i.e., treated wastewater that is reintroduced for various purposes. Especially in water scarce regions, reclaimed water is often the only remaining source of water to meet increasing ... Keywords: Demand and network growth uncertainty, Reclaimed water distribution system, Stochastic optimization, Water resources management

Weini Zhang, Gunhui Chung, Péguy Pierre-Louis, Güzin Bayraksan, Kevin Lansey

2013-11-01T23:59:59.000Z

409

Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues  

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

Blending Hydrogen into Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues M. W. Melaina, O. Antonia, and M. Penev Technical Report NREL/TP-5600-51995 March 2013 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 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues M. W. Melaina, O. Antonia, and M. Penev Prepared under Task No. HT12.2010 Technical Report NREL/TP-5600-51995 March 2013 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

410

ORIGINAL ARTICLE Product-Form Stationary Distributions for Deficiency Zero Chemical Reaction Networks  

E-Print Network (OSTI)

Abstract We consider stochastically modeled chemical reaction systems with massaction kinetics and prove that a product-form stationary distribution exists for each closed, irreducible subset of the state space if an analogous deterministically modeled system with mass-action kinetics admits a complex balanced equilibrium. Feinberg’s deficiency zero theorem then implies that such a distribution exists so long as the corresponding chemical network is weakly reversible and has a deficiency of zero. The main parameter of the stationary distribution for the stochastically modeled system is a complex balanced equilibrium value for the corresponding deterministically modeled system. We also generalize our main result to some non-mass-action kinetics.

David F. Anderson; Gheorghe Craciun; Thomas G. Kurtz

2009-01-01T23:59:59.000Z

411

Microsoft Word - The Essential Role of New Network Services for High Performance Distributed Computing - PARENG.CivilComp.2011.  

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

International Conference on Parallel, Distributed, Grid and International Conference on Parallel, Distributed, Grid and Cloud Computing for Engineering 12-15 April 2011, Ajaccio - Corsica - France In "Trends in Parallel, Distributed, Grid and Cloud Computing for Engineering," Edited by: P. Iványi, B.H.V. Topping, Civil-Comp Press. Network Services for High Performance Distributed Computing and Data Management W. E. Johnston, C. Guok, J. Metzger, and B. Tierney ESnet and Lawrence Berkeley National Laboratory, Berkeley California, U.S.A Keywords: high performance distributed computing and data management, high throughput networks, network services, science use of networks Much of modern science is dependent on high performance distributed computing and data handling. This distributed infrastructure, in turn, depends on

412

Flue Gas Desulfurization Gypsum Agricultural Network: North Dakota Sites 1 and 2 (Wheat)  

Science Conference Proceedings (OSTI)

This report describes work performed in 2007 and 2008 to evaluate potential beneficial agricultural uses of flue gas desulfurization (FGD) gypsum at two sites in North Dakota. This work was part of a national research network evaluating beneficial uses of FGD gypsum in agriculture. The objectives of this research were to determine the influence of FGD gypsum applications on soil quality and on wheat (Triticum aestivum L.) yields and seed quality. Three application rates of FGD gypsum were compared with s...

2011-12-16T23:59:59.000Z

413

Decision support system for water distribution systems based on neural networks and graphs theory for leakage detection  

Science Conference Proceedings (OSTI)

This paper presents an efficient and effective decision support system (DSS) for operational monitoring and control of water distribution systems based on a three layer General Fuzzy Min-Max Neural Network (GFMMNN) and graph theory. The operational monitoring ... Keywords: Decision support system, Graph theory, Loop corrective flows equations, Modeling and simulation, Neural network, Operational control of water distribution systems

Corneliu T. C. Arsene; Bogdan Gabrys; David Al-Dabass

2012-12-01T23:59:59.000Z

414

Impact of SCIG and DFIG Type Wind Turbine on the Stability of Distribution Networks: static and dynamic  

E-Print Network (OSTI)

Impact of SCIG and DFIG Type Wind Turbine on the Stability of Distribution Networks: static fed induction generator (DFIG) type wind turbine in distribution networks. The analysis is carried out and DFIG type wind turbines have significant impact on the static voltage stability, power loss

Pota, Himanshu Roy

415

Bridging the analytical gap between distributed cognition and actor network theory using a tool for information trajectory analysis  

Science Conference Proceedings (OSTI)

Motivation -- Distributed Cognition (DCog) and Actor-Network Theory (ANT) are two related perspectives which can be adopted when studying the relationship between humans and artefacts in collaborative environments. Although these perspectives ... Keywords: TITAN, actor-network theory, distributed cognition, information trajectories, research tool

Stuart Moran; Keiichi Nakata; Satoru Inoue

2012-08-01T23:59:59.000Z

416

Modeling of ultrasound transmission through a solid-liquid interface comprising a network of gas pockets  

SciTech Connect

Ultrasonic inspection of sodium-cooled fast reactor requires a good acoustic coupling between the transducer and the liquid sodium. Ultrasonic transmission through a solid surface in contact with liquid sodium can be complex due to the presence of microscopic gas pockets entrapped by the surface roughness. Experiments are run using substrates with controlled roughness consisting of a network of holes and a modeling approach is then developed. In this model, a gas pocket stiffness at a partially solid-liquid interface is defined. This stiffness is then used to calculate the transmission coefficient of ultrasound at the entire interface. The gas pocket stiffness has a static, as well as an inertial component, which depends on the ultrasonic frequency and the radiative mass.

Paumel, K.; Baque, F. [CEA, DEN, Nuclear Technology Department, F-13108 Saint-Paul-lez-Durance (France); Moysan, J.; Corneloup, G. [Laboratoire de Caracterisation Non Destructive, Universite de la Mediterranee, IUT Aix-en-Provence, Avenue Gaston Berger, 13625 Aix-en-Provence (France); Chatain, D. [CNRS, Aix-Marseille Universite, CINAM-UPR3118, Campus de Luminy, Case 913, 13288 Marseille cedex 09 (France)

2011-08-15T23:59:59.000Z

417

New York Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) New York Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.26 0.23 0.25 1970's 0.23 0.25 0.26 0.27 0.31 0.39 0.54 0.85 1.07 1.44 1980's 1.95 2.41 3.15 3.44 3.23 3.15 2.53 2.47 2.33 2.64 1990's 2.59 2.71 2.86 3.15 2.21 1.52 2.23 1.89 1.38 1.31 2000's 2.25 2.94 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use New York Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

418

Texas Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Texas Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.16 0.17 0.17 1970's 0.17 0.18 0.19 0.20 0.28 0.37 0.51 0.68 0.73 1.19 1980's 1.56 2.24 3.09 3.11 2.98 2.80 2.18 2.01 1.98 1.81 1990's 1.74 1.62 1.66 1.82 1.64 1.64 2.40 2.36 2.02 1.99 2000's 2.99 3.13 NA -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Texas Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

419

Ohio Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Ohio Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.22 0.23 0.23 1970's 0.23 0.27 0.28 0.30 0.32 0.43 0.53 0.87 1.01 1.37 1980's 1.92 2.33 3.04 3.42 3.28 3.28 2.79 2.64 2.43 2.54 1990's 2.61 2.66 2.83 2.53 2.50 2.03 2.88 2.80 3.20 2.63 2000's 3.41 5.18 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Ohio Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

420

Idaho Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Idaho Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.21 0.21 0.22 1970's 0.22 0.24 0.28 0.34 0.44 0.60 0.72 1.65 1.95 2.45 1980's 3.93 3.95 4.19 3.69 3.55 3.15 2.67 2.08 2.00 2.05 1990's 2.06 1.99 1.89 1.76 1.86 1.78 1.79 1.83 1.67 2.04 2000's 3.52 3.49 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Idaho Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

Note: This page contains sample records for the topic "gas distribution network" 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

Utah Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Utah Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.21 0.21 0.21 1970's 0.21 0.22 0.28 0.29 0.34 0.54 0.67 1.40 1.72 1.88 1980's 2.94 3.17 2.67 2.94 2.99 3.19 2.93 2.66 2.84 2.18 1990's 2.25 2.51 2.25 1.91 1.94 1.57 1.68 2.20 2.05 1.92 2000's 3.19 2.97 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Utah Natural Gas Prices Price for Natural Gas Pipeline and Distribution Use

422

The Large-scale Distribution of Cool Gas around Luminous Red Galaxies  

E-Print Network (OSTI)

We present a measurement of the correlation function between luminous red galaxies and cool gas traced by Mg II \\lambda \\lambda 2796, 2803 absorption, on scales ranging from about 30 kpc to 20 Mpc. The measurement is based on cross-correlating the positions of about one million red galaxies at z~0.5 and the flux decrements induced in the spectra of about 10^5 background quasars from the Sloan Digital Sky Survey. We find that: (i) This galaxy-gas correlation reveals a change of slope on scales of about 1 Mpc, consistent with the expected transition from a dark matter halo dominated environment to a regime where clustering is dominated by halo-halo correlations. Assuming that, on average, the distribution of Mg II gas follows that of dark matter up to a gas-to-mass ratio, we find the standard halo model to provide an accurate description of the gas distribution over three orders of magnitude in scale. Within this framework we estimate the average host halo mass of luminous red galaxies to be about 10^{13.5} M_s...

Zhu, Guangtun; Bizyaev, Dmitry; Brewington, Howard; Ebelke, Garrett; Ho, Shirley; Kinemuchi, Karen; Malanushenko, Viktor; Malanushenko, Elena; Marchante, Moses; More, Surhud; Oravetz, Daniel; Pan, Kaike; Petitjean, Patrick; Simmons, Audrey

2013-01-01T23:59:59.000Z

423

Ultra-stable long distance optical frequency distribution using the Internet fiber network  

E-Print Network (OSTI)

We report an optical link of 540 km for ultrastable frequency distribution over the Internet fiber network. The stable frequency optical signal is processed enabling uninterrupted propagation on both directions. The robustness and the performance of the link are enhanced by a cost effective fully automated optoelectronic station. This device is able to coherently regenerate the return optical signal with a heterodyne optical phase locking of a low noise laser diode. Moreover the incoming signal polarization variation are tracked and processed in order to maintain beat note amplitudes within the operation range. Stable fibered optical interferometer enables optical detection of the link round trip phase signal. The phase-noise compensated link shows a fractional frequency instability in 10 Hz bandwidth of 5\\times10-15 at one second measurement time and 2\\times10-19 at 30 000 s. This work is a significant step towards a sustainable wide area ultrastable optical frequency distribution and comparison network.

Lopez, Olivier; Chanteau, Bruno; Chardonnet, Christian; Amy-Klein, Anne; Santarelli, Georgio

2012-01-01T23:59:59.000Z

424

Ultra-stable long distance optical frequency distribution using the Internet fiber network  

E-Print Network (OSTI)

We report an optical link of 540 km for ultrastable frequency distribution over the Internet fiber network. The stable frequency optical signal is processed enabling uninterrupted propagation on both directions. The robustness and the performance of the link are enhanced by a cost effective fully automated optoelectronic station. This device is able to coherently regenerate the return optical signal with a heterodyne optical phase locking of a low noise laser diode. Moreover the incoming signal polarization variation are tracked and processed in order to maintain beat note amplitudes within the operation range. Stable fibered optical interferometer enables optical detection of the link round trip phase signal. The phase-noise compensated link shows a fractional frequency instability in 10 Hz bandwidth of 5x10-15 at one second measurement time and 2x10-19 at 30 000 s. This work is a significant step towards a sustainable wide area ultrastable optical frequency distribution and comparison network.

Olivier Lopez; Adil Haboucha; Bruno Chanteau; Christian Chardonnet; Anne Amy-Klein; Giorgio Santarelli

2012-06-25T23:59:59.000Z

425

U.S. Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand  

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

Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) U.S. Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.20 0.20 0.21 1970's 0.21 0.22 0.23 0.25 0.30 0.40 0.51 0.77 0.90 1.32 1980's 1.85 2.39 2.97 3.15 3.04 2.92 2.52 2.17 2.10 2.01 1990's 1.95 1.87 2.07 1.97 1.70 1.49 2.27 2.29 2.01 1.88 2000's 2.97 3.55 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use U.S. Natural Gas Prices

426

Iowa Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand  

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

Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Iowa Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.17 0.16 0.17 1970's 0.17 0.19 0.20 0.22 0.26 0.34 0.52 0.73 0.99 1.17 1980's 1.55 1.89 2.50 2.73 2.71 2.83 2.57 2.75 2.01 2.02 1990's 1.52 1.54 1.71 1.25 1.39 1.40 2.37 2.46 2.06 2.16 2000's 3.17 3.60 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Iowa Natural Gas Prices

427

ETM (Distribution Network Automation on 10 kV cable line stations) (Smart  

Open Energy Info (EERE)

ETM (Distribution Network Automation on 10 kV cable line stations) (Smart ETM (Distribution Network Automation on 10 kV cable line stations) (Smart Grid Project) Jump to: navigation, search Project Name ETM (Distribution Network Automation on 10 kV cable line stations) Country Hungary Headquarters Location Budapest, Hungary Coordinates 47.498405°, 19.040758° 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":47.498405,"lon":19.040758,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

428

A Computational Approach to the Real Option Management of Network Contracts for Natural Gas Pipeline Transport Capacity  

Science Conference Proceedings (OSTI)

Commodity merchants use real option models to manage their operations. A central element of such a model is its underlying operating policy. We focus on network contracts for the transport capacity of natural gas pipelines, specific energy conversion ... Keywords: Monte Carlo simulation, capacity valuation, commodity and energy conversion assets, energy-related operations, heuristics, math programming, natural gas pipelines, operations management practice, operations management/finance interface, petroleum/natural gas industries, real options, sensitivities, spread options

Nicola Secomandi; Mulan X. Wang

2012-07-01T23:59:59.000Z

429

A model specific simulation of power distribution grids for non-destructive testing of network reconfiguration schemes  

Science Conference Proceedings (OSTI)

This work describes a simulation platform used to study and test grid control schemes for electric power distribution systems. The effectiveness of proposed control schemes can be simulated using the platform and prototyped within a hardware testbed ... Keywords: distribution automation, electric power distribution systems, network reconfiguration

Christian Schegan; Valentina Cecchi; Xiaoguang Yang; Karen Miu

2010-07-01T23:59:59.000Z

430

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.

1997-02-01T23:59:59.000Z

431

Flue Gas Desulfurization Gypsum Agricultural Network: Wisconsin Arlington Research Station Fields 295 and 27 (Alfalfa)  

Science Conference Proceedings (OSTI)

This report describes field research in Wisconsin as part of the Flue Gas Desulfurization Gypsum (FGDG) Agricultural Network. The objective of this study, conducted during 2009-2010, was to evaluate potential beneficial agricultural uses of FGDG as a soil amendment to improve alfalfa production. FGDG was compared to a commercially available gypsum product (C-GYP) widely sold in the U.S. Midwest and other areas. A study was established in two fields (Field 295 in 2009/2010 and Field 27 in 2010) at ...

2013-05-06T23:59:59.000Z

432

Flue Gas Desulfurization Gypsum Agricultural Network: North Dakota Sites 3, 4, and 5 (Canola)  

Science Conference Proceedings (OSTI)

Flue gas desulfurization gypsum (FGDG) is a very pure form of gypsum that is a by-product from the combustion of coal for energy production. This report describes 2008-2009 work to evaluate potential beneficial agricultural uses of FGDG at three sites near Langdon, North Dakota. This work was part of a national research network evaluating beneficial uses of FGDG in agriculture, in this case, fertilization of dryland canola by FGDG. The objectives of this research were to 1) determine the influence of FGD...

2011-11-28T23:59:59.000Z

433

The spatial distributions of cooling gas and intrinsic X-ray absorbing material in cooling flows  

E-Print Network (OSTI)

We present the results from a study of the spatial distributions of cooling gas and intrinsic X-ray absorbing material in a sample of nearby, X-ray bright cooling flow clusters observed with the Position Sensitive Proportional Counter (PSPC) on ROSAT. Our method of analysis employs X-ray colour profiles, formed from ratios of the surface brightness profiles of the clusters in selected energy bands, and an adapted version of the deprojection code of Fabian et al. (1981). We show that all of the cooling flow clusters in our sample exhibit significant central concentrations of cooling gas. At larger radii the clusters appear approximately isothermal. In detail, the spatial distributions and emissivity of the cooling material are shown to be in excellent agreement with the predictions from the deprojection code, and can be used to constrain the ages of the cooling flows. The X-ray colour profiles also indicate substantial levels of intrinsic X-ray absorption in the clusters. The intrinsic absorption increases with decreasing radius, and is confined to the regions occupied by the cooling flows. We explore a range of likely spatial distributions for the absorbing gas and discuss the complexities

unknown authors

2008-01-01T23:59:59.000Z

434

Solving Natural Gas Loadflow Problems Using Electric Loadflow Techniques  

E-Print Network (OSTI)

Abstract — Methods to solve natural gas loadflow problems using electric loadflow techniques are presented. The motivation is to integrate a natural gas network with an electric power transmission network so that the network analysis for a combined natural gas and electric power distribution network can be performed in a consistent manner. The issues arising from solving gas loadflow problems are discussed for the sake of electrical engineers. The application method and related issues are demonstrated through a case study on a gas network with compressors. I.

Qing Li

2003-01-01T23:59:59.000Z

435

Distributed Management of High-Layer Protocols and Network Services through a Programmable Agent-Based Architecture  

Science Conference Proceedings (OSTI)

This paper proposes an architecture for distributed management of upper layer protocols and network services called Trace. Based on the IETF Script MIB, the architecture provides mechanisms for the delegation of management tasks to mid-level managers, ...

Luciano Paschoal Gaspary; Luis Felipe Balbinot; Roberto Storch; Fabricio Wendt; Liane M. Rockenbach Tarouco

2001-07-01T23:59:59.000Z

436

Quantification of the Small-Scale Spatial Structure of the Raindrop Size Distribution from a Network of Disdrometers  

Science Conference Proceedings (OSTI)

The spatial structure of the raindrop size distribution (DSD) conveys crucial information for reliable quantitative estimation of rainfall using remote sensing techniques. To investigate this question, a network of 16 optical disdrometers has been ...

Joël Jaffrain; Alexis Berne

2012-05-01T23:59:59.000Z

437

Influence of gas flow rate on liquid distribution in trickle-beds using perforated plates as liquid distributors  

E-Print Network (OSTI)

Two wire mesh tomography devices and a liquid collector were used to study the influence of the gas flow rate on liquid distribution when fluids distribution on top of the reactor is ensured by a perforated plate. In opposition to most of the studies realized by other authors, conditions in which the gas has a negative impact in liquid distribution were evidenced. Indeed, the obtained results show that the influence of gas flow rate depends on the quality of the initial distribution, as the gas forces the liquid to "respect" the distribution imposed at the top of the reactor. Finally, a comparison between the two measuring techniques shows the limitations of the liquid collector and the improper conclusions to which its use could lead.

Llamas, Juan-David; Wild, Gabriel

2008-01-01T23:59:59.000Z

438

A majorization-minimization approach to design of power distribution networks  

Science Conference Proceedings (OSTI)

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

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

2010-01-01T23:59:59.000Z

439

Fabrication of gas impervious edge seal for a bipolar gas distribution assembly for use in a fuel cell  

DOE Patents (OSTI)

A bipolar gas reactant distribution assembly for use in a fuel cell is disclosed, the assembly having a solid edge seal to prevent leakage of gaseous reactants wherein a pair of porous plates are provided with peripheral slits generally parallel to, and spaced apart from two edges of the plate, the slit being filled with a solid, fusible, gas impervious edge sealing compound. The plates are assembled with opposite faces adjacent one another with a layer of a fusible sealant material therebetween the slits in the individual plates being approximately perpendicular to one another. The plates are bonded to each other by the simultaneous application of heat and pressure to cause a redistribution of the sealant into the pores of the adjacent plate surfaces and to cause the edge sealing compound to flow and impregnate the region of the plates adjacent the slits and comingle with the sealant layer material to form a continuous layer of sealant along the edges of the assembled plates.

Kaufman, Arthur (West Orange, NJ); Werth, John (Princeton, NJ)

1986-01-01T23:59:59.000Z

440

Distributed Wake-Up Scheduling for Energy Saving in Wireless Networks  

E-Print Network (OSTI)

A customary solution to reduce the energy consumption of wireless communication devices is to periodically put the radio into low-power sleep mode. A relevant problem is to schedule the wake-up of nodes in such a way as to ensure proper coordination among devices, respecting delay constraints while still saving energy. In this paper, we introduce a simple algebraic characterization of the problem of periodic wake-up scheduling under both energy consumption and delay constraints. We demonstrate that the general problem of wake-up times coordination is equivalent to integer factorization and discuss the implications on the design of efficient scheduling algorithms. We then propose simple polynomial time heuristic algorithms that can be implemented in a distributed fashion and present a message complexity of the order of the number of links in the network. Numerical results are provided in order to assess the performance of the proposed techniques when applied to wireless sensor networks.

De Pellegrini, Francesco; Miorandi, Daniele; Chlamtac, Imrich

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas distribution network" 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

Rhode Island Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Rhode Island Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.73 0.33 0.39 1970's 0.33 0.38 0.38 0.42 0.41 0.55 0.75 1.67 2.08 2.06 1980's 2.92 4.74 4.53 4.74 4.05 4.53 3.55 2.87 2.20 4.19 1990's 3.74 3.41 2.94 3.31 2.69 2.21 3.35 3.15 3.00 2.53 2000's 4.67 5.20 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use Rhode Island Natural Gas Prices

442

North Dakota Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) North Dakota Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.27 0.17 0.17 1970's 0.20 0.20 0.25 0.29 0.31 0.51 0.57 0.75 0.95 1.55 1980's 1.81 2.34 4.11 3.80 3.42 2.77 2.56 2.40 2.49 2.03 1990's 1.61 1.35 1.28 1.84 1.34 1.01 1.70 2.07 1.77 2.12 2000's 3.62 2.14 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use North Dakota Natural Gas Prices

443

South Dakota Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) South Dakota Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.24 0.22 0.20 1970's 0.20 0.20 0.30 0.33 0.31 0.50 0.55 0.63 0.78 1.20 1980's 1.71 2.20 2.91 3.31 3.32 3.46 2.69 2.17 2.05 1.91 1990's 2.13 1.42 1.22 1.80 1.36 1.03 1.75 2.13 1.68 2.12 2000's 3.76 3.28 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use South Dakota Natural Gas Prices

444

West Virginia Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) West Virginia Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.34 0.33 1970's 0.32 0.33 0.38 0.39 0.45 0.59 0.69 1.12 1.29 0.85 1980's 2.24 2.62 3.35 3.75 3.71 3.85 3.44 2.85 2.89 2.97 1990's 2.86 2.49 2.93 3.57 3.54 1.87 3.19 2.97 2.69 2.54 2000's 3.70 5.42 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use West Virginia Natural Gas Prices

445

New Mexico Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) New Mexico Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.16 0.15 0.15 1970's 0.17 0.17 0.18 0.22 0.30 0.39 0.41 0.68 0.79 1.36 1980's 1.78 2.25 2.80 3.10 3.24 2.86 2.31 1.66 1.70 1.63 1990's 1.67 1.36 1.31 1.79 1.61 1.13 1.59 1.94 1.89 1.03 2000's 1.80 1.74 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use New Mexico Natural Gas Prices

446

New Jersey Natural Gas Pipeline and Distribution Use Price (Dollars per  

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

Price (Dollars per Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) New Jersey Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.25 0.21 0.21 1970's 0.22 0.23 0.24 0.25 0.27 0.33 0.41 0.63 0.85 1.29 1980's 1.96 2.75 3.07 3.37 3.68 3.40 2.94 2.53 2.73 2.74 1990's 2.62 2.48 2.62 2.93 2.66 2.59 3.15 3.11 2.93 1.79 2000's 4.00 4.74 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Price for Natural Gas Pipeline and Distribution Use New Jersey Natural Gas Prices

447

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

Science Conference Proceedings (OSTI)

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

448

Integrated resource planning for local gas distribution companies: A critical review of regulatory policy issues  

SciTech Connect

According to the report, public utility commissions (PUCs) are increasingly adopting, or considering the adoption of integrated resource planning (IRP) for local gas distribution companies (LDCs). The Energy Policy Act of 1992 (EPAct) requires PUCs to consider IRP for gas LDCs. This study has two major objectives: (1) to help PUCs develop appropriate regulatory approaches with regard to IRP for gas LDCs; and (2) to help PUCs respond to the EPAct directive. The study finds that it is appropriate for PUCs to pursue energy efficiency within the traditional regulatory framework of minimizing private costs of energy production and delivery; and PUCs should play a limited role in addressing environmental externalities. The study also finds that in promoting energy efficiency, PUCs should pursue policies that are incentive-based, procompetitive, and sensitive to rate impacts. The study evaluates a number of traditional and nontraditional ratemaking mechanisms on the basis of cost minimization, energy efficiency, competitiveness, and other criteria. The mechanisms evaluated include direct recovery of DSM expenses, lost revenue adjustments for DSM options, revenue decoupling mechanisms, sharing of DSM cost savings, performance-based rate of return for DSM, provision of DSM as a separate service, deregulation of DSM service, price caps, and deregulation of the noncore gas market. The study concludes with general recommendations for regulatory approaches and ratemaking mechanisms that PUCs may wish to consider in advancing IRP objectives.

Harunuzzaman, M.; Islam, M.

1994-08-01T23:59:59.000Z

449

Network  

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

network - launched in November 2012. The network was built in collaboration with Internet2, an advanced network, which connects the nation's research universities. Leveraging...

450

Systematic Studies of the Gas Humidification Effects on Spatial PEMFC Performance Distributions  

Science Conference Proceedings (OSTI)

The overall current density that is measured in a proton exchange membrane fuel cell (PEMFC) represents the average of the local reaction rates. The overall and local PEMFC performances are determined by several primary loss mechanisms, namely activation, ohmic, and mass transfer. Spatial performance and loss variabilities are significant and depend on the cell design and operating conditions. A segmented cell system was used to quantify different loss distributions along the gas channel to understand the effects of gas humidification. A reduction in the reactant stream humidification decreased cell performance and resulted in non-uniform distributions of overpotentials and performance along the flow field. Activation and ohmic overpotentials increased with a relative humidity decrease due to insufficient membrane and catalyst layer hydration. The relative humidity of the cathode had a strong impact on the mass transfer overpotential due to a lower oxygen permeability through the dry Nafion film covering the catalyst surface. The mass transfer loss distribution was non-uniform, and the mass transfer overpotential increased for the outlet segments due to the oxygen consumption at the inlet segments, which reduced the oxygen concentration downstream, and a progressive water accumulation from upstream segments. Electrochemical impedance spectroscopy (EIS) and an equivalent electric circuit (EEC) facilitated the analysis and interpretation of the segmented cell data.

Reshetenko, T. V.; Bender, G.; Bethune, K.; Rocheleau, R.

2012-05-01T23:59:59.000Z

451

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

Science Conference Proceedings (OSTI)

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

NONE

1996-02-26T23:59:59.000Z

452

Privacy and Security Research Group workshop on network and distributed system security: Proceedings  

Science Conference Proceedings (OSTI)

This report contains papers on the following topics: NREN Security Issues: Policies and Technologies; Layer Wars: Protect the Internet with Network Layer Security; Electronic Commission Management; Workflow 2000 - Electronic Document Authorization in Practice; Security Issues of a UNIX PEM Implementation; Implementing Privacy Enhanced Mail on VMS; Distributed Public Key Certificate Management; Protecting the Integrity of Privacy-enhanced Electronic Mail; Practical Authorization in Large Heterogeneous Distributed Systems; Security Issues in the Truffles File System; Issues surrounding the use of Cryptographic Algorithms and Smart Card Applications; Smart Card Augmentation of Kerberos; and An Overview of the Advanced Smart Card Access Control System. Selected papers were processed separately for inclusion in the Energy Science and Technology Database.

Not Available

1993-05-01T23:59:59.000Z

453

Abstract--Improvements in transmission and distribution networks can be noticed in most countries that had their system  

E-Print Network (OSTI)

, the National Electricity Regulatory Agency has established that the monthly amount of transmission system usage1 Abstract--Improvements in transmission and distribution networks can be noticed in most one of the biggest challenges is the transmission and distribution open access. In Brazil

Morton, David

454

DECENTRALIZED CONTROL ARCHITECTURE FOR COUPLING MICROGRIDS INTO DISTRIBUTION NETWORKS 1 Task 1: Coupling Low-Voltage Microgrids into  

E-Print Network (OSTI)

DECENTRALIZED CONTROL ARCHITECTURE FOR COUPLING MICROGRIDS INTO DISTRIBUTION NETWORKS 1 Task 1: Coupling Low-Voltage Microgrids into Mid-Voltage Distribution Systems Zhao Wang, Student Member, IEEE-voltage (LV) microgrids. At the same time, reactive power is dispatched coordinatively so that voltage

Lemmon, Michael

455

Minimum-energy broadcast in random-grid ad-hoc networks: approximation and distributed algorithms  

E-Print Network (OSTI)

The Min Energy broadcast problem consists in assigning transmission ranges to the nodes of an ad-hoc network in order to guarantee a directed spanning tree from a given source node and, at the same time, to minimize the energy consumption (i.e. the energy cost) yielded by the range assignment. Min energy broadcast is known to be NP-hard. We consider random-grid networks where nodes are chosen independently at random from the $n$ points of a $\\sqrt n \\times \\sqrt n$ square grid in the plane. The probability of the existence of a node at a given point of the grid does depend on that point, that is, the probability distribution can be non-uniform. By using information-theoretic arguments, we prove a lower bound $(1-\\epsilon) \\frac n{\\pi}$ on the energy cost of any feasible solution for this problem. Then, we provide an efficient solution of energy cost not larger than $1.1204 \\frac n{\\pi}$. Finally, we present a fully-distributed protocol that constructs a broadcast range assignment of energy cost not larger tha...

Calamoneri, Tiziana; Monti, Angelo; Rossi, Gianluca; Silvestri, Riccardo

2008-01-01T23:59:59.000Z

456

Review of performance-based ratemaking plans for US gas distribution companies  

SciTech Connect

Performance-Based Ratemaking (PBR) is receiving increasing attention by energy utilities and their regulators. PBR is the industry term for forms of regulation that increase financial incentive for performance relative to traditional cost-of-service/rate-of-return (COS/ROR) regulation. In this report, PBR plans filed by US gas local distribution companies (LDCs) are described and reviewed. The rationale behind energy utility PBR is presented and discussed. Using nine plans that have been proposed by eight LDCs as a basis, a framework (typology) to facilitate understanding of gas utility PBR is presented. Plans are categorized according to the range of services covered by the PBR mechanism and the scope of the mechanism`s cost coverage within a service category. Pivotal design issues are identified and, based on the sample of plans, observations are made. Design issues covered include the length of time that the PBR is in effect (term); the relationship between PBR plans and status quo ratemaking; methods for formulating cost or rate indices, earnings sharing mechanisms, and service quality indices; and compatibility with gas utility DSM programs. The report summarizes observations that may be considered supportive of the rationale behind PBR. PBR is, however, not clearly superior to traditional regulation and few PBRs that are broad in scope have been adopted long enough to allow for a empirical analysis. Thus, the report concludes by identifying and describing commonly-cited pitfalls of PBR.

Comnes, G.A. [Lawrence Berkeley Lab., CA (United States). Energy and Environment Div.

1994-11-01T23:59:59.000Z

457

A fuzzy nearest neighbor neural network statistical model for predicting demand for natural gas and energy cost savings in public buildings  

Science Conference Proceedings (OSTI)

This paper addresses the problem of predicting demand for natural gas for the purpose of realizing energy cost savings. Daily monitoring of a rooftop unit wireless sensor system provided feedback for a decision support system that supplied the demand ... Keywords: Artificial neural networks, Decision support system, Energy forecasting, Natural gas demand, Nearest neighbor method, Wireless sensor networks

James A. Rodger

2014-03-01T23:59:59.000Z

458

Model documentation: 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 a component of the National Energy Modeling System (NEMS) used to represent the domestic natural gas transmission and distribution system. NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the Energy Information Administration (EIA) and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. This report documents the archived version of NGTDM that was used to produce the natural gas forecasts used in support of the Annual Energy Outlook 1994, DOE/EIA-0383(94). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic design, provides detail on the methodology employed, and describes the model inputs, outputs, and key assumptions. It is intended to fulfill the legal obligation of the EIA to provide adequate documentation in support of its models (Public Law 94-385, Section 57.b.2). This report represents Volume 1 of a two-volume set. (Volume 2 will report on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.) Subsequent chapters of this report provide: (1) an overview of the NGTDM (Chapter 2); (2) a description of the interface between the National Energy Modeling System (NEMS) and the NGTDM (Chapter 3); (3) an overview of the solution methodology of the NGTDM (Chapter 4); (4) the solution methodology for the Annual Flow Module (Chapter 5); (5) the solution methodology for the Distributor Tariff Module (Chapter 6); (6) the solution methodology for the Capacity Expansion Module (Chapter 7); (7) the solution methodology for the Pipeline Tariff Module (Chapter 8); and (8) a description of model assumptions, inputs, and outputs (Chapter 9).

NONE

1994-02-24T23:59:59.000Z

459

Networked Acoustic Modems for Real-Time Data Delivery from Distributed Subsurface Instruments in the Coastal Ocean: Initial System Development and Performance  

Science Conference Proceedings (OSTI)

Results are reported from field tests of networked acoustic modems used for wireless real-time delivery of oceanographic measurements from a distributed array of subsurface instruments in coastal waters. The network demonstrated consists of ...

Daniel L. Codiga; Joseph A. Rice; Paul A. Baxley

2004-02-01T23:59:59.000Z

460

THE ORIGIN AND DISTRIBUTION OF COLD GAS IN THE HALO OF A MILKY-WAY-MASS GALAXY  

Science Conference Proceedings (OSTI)

We analyze an adaptive mesh refinement hydrodynamic cosmological simulation of a Milky-Way-sized galaxy to study the cold gas in the halo. H I observations of the Milky Way and other nearby spirals have revealed the presence of such gas in the form of clouds and other extended structures, which indicates ongoing accretion. We use a high-resolution simulation (136-272 pc throughout) to study the distribution of cold gas in the halo, compare it with observations, and examine its origin. The amount ({approx}10{sup 8} M{sub Sun} in H I), covering fraction, and spatial distribution of the cold halo gas around the simulated galaxy at z = 0 are consistent with existing observations. At z = 0, the H I mass accretion rate onto the disk is 0.2 M{sub Sun} yr{sup -1}. We track the histories of the 20 satellites that are detected in H I in the redshift interval 0.5 > z > 0 and find that most of them are losing gas, with a median mass-loss rate per satellite of 3.1 Multiplication-Sign 10{sup -3} M{sub Sun} yr{sup -1}. This stripped gas is a significant component of the H I gas seen in the simulation. In addition, we see filamentary material coming into the halo from the intergalactic medium at all redshifts. Most of this gas does not make it directly to the disk, but part of the gas in these structures is able to cool and form clouds. The metallicity of the gas allows us to distinguish between filamentary flows and satellite gas. We find that the former accounts for at least 25%-75% of the cold gas in the halo seen at any redshift analyzed here. Placing constraints on cloud formation mechanisms allows us to better understand how galaxies accrete gas and fuel star formation at z = 0.

Fernandez, Ximena; Joung, M. Ryan; Putman, Mary E. [Department of Astronomy, Columbia University, 550 West 120th Street, New York, NY 10027 (United States)

2012-04-20T23:59:59.000Z

Note: This page contains sample records for the topic "gas distribution network" 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

Reference Models and Incentive Regulation of Electricity Distribution Networks: An Evaluation of Sweden’s Network Performance Assessment Model (NPAM)  

E-Print Network (OSTI)

? Network administration costs ? Cost of network losses ? Financial costs ? Return on capital vii. Deductions from revenues are made for quality of service using supply interruptions data of actual companies and customer willingness-to-pay (WTP) values... for the active networks of future characterised by: responsive industrial and household demand, micro- generation technologies, industrial CHP, decentralised renewable sources, smart meters, and advanced information and communications technologies...

Jamasb, Tooraj; Pollitt, Michael G.

462

The National Energy Modeling System: An Overview 2000 - Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

natural gas transmission and distribution module (NGTDM) of NEMS represents the natural gas market and determines regional market-clearing prices for natural gas supplies and for end-use consumption, given the information passed from other NEMS modules. A transmission and distribution network (Figure 15), composed of nodes and arcs, is used to simulate the interregional flow and pricing of gas in the contiguous United States and Canada in both the peak (December through March) and offpeak (April through November) period. This network is a simplified representation of the physical natural gas pipeline system and establishes the possible interregional flows and associated prices as gas moves from supply sources to end users. natural gas transmission and distribution module (NGTDM) of NEMS represents the natural gas market and determines regional market-clearing prices for natural gas supplies and for end-use consumption, given the information passed from other NEMS modules. A transmission and distribution network (Figure 15), composed of nodes and arcs, is used to simulate the interregional flow and pricing of gas in the contiguous United States and Canada in both the peak (December through March) and offpeak (April through November) period. This network is a simplified representation of the physical natural gas pipeline system and establishes the possible interregional flows and associated prices as gas moves from supply sources to end users. Figure 15. Natural Gas Transmission and Distribution Module Network

463

Local Equation of State and Velocity Distributions of a Driven Granular Gas  

E-Print Network (OSTI)

We present event-driven simulations of a granular gas of inelastic hard disks with incomplete normal restitution in two dimensions between vibrating walls (without gravity). We measure hydrodynamic quantities such as the stress tensor, density and temperature profiles, as well as velocity distributions. Relating the local pressure to the local temperature and local density, we construct a local constitutive equation. For strong inelasticities the local constitutive relation depends on global system parameters, like the volume fraction and the aspect ratio. For moderate inelasticities the constitutive relation is approximately independent of the system parameters and can hence be regarded as a local equation of state, even though the system is highly inhomogeneous with heterogeneous temperature and density profiles arising as a consequence of the energy injection. Concerning the local velocity distributions we find that they do not scale with the square root of the local granular temperature. Moreover the high-velocity tails are different for the distribution of the x- and the y-component of the velocity, and even depend on the position in the sample, the global volume fraction, and the coefficient of restitution.

Olaf Herbst; Peter Müller; Matthias Otto; Annette Zippelius

2004-02-04T23:59:59.000Z

464

PROCEEDINGS OF FOURTH BERKELEY CONFERENCE ON DISTRIBUTED DATA MANAGEMENT AND COMPUTER NETWORKS.  

E-Print Network (OSTI)

packet switching for local computer networks. Comm. of theaddressing capabilities for computer networks. Proe. IEEE,InternatIonal Conference on,Computer CommunIcatIon, August

Hall, Dennis

2011-01-01T23:59:59.000Z

465

Natural gas distributed throughout the Marcellus black shale in northern Appalachia could boost proven U.S. gas reserves by trillions of cubic feet (see http://live.psu.edu/story/28116).  

E-Print Network (OSTI)

Natural gas distributed throughout the Marcellus black shale in northern Appalachia could boost proven U.S. gas reserves by trillions of cubic feet (see http://live.psu.edu/story/28116). A recent gas exploration and extraction. In return for lease rights, parties recovering gas customarily pay

Boyer, Elizabeth W.

466

A Distributed Load Balancing Algorithm for the Hot Cell Problem in Cellular Mobile Networks  

E-Print Network (OSTI)

We propose a novel distributed load balancing algorithm (D-LBSB) for the hot cell problem in cellular mobile networks. As an underlying approach, we start with a fixed channel assignment scheme where each cell is initially allocated a set of C (local) channels, each to be assigned on demand to a user in the cell. A cell is classified as `hot', if the degree of coldness of a cell (defined as the ratio of the number of available channels to the total number of channels for that cell) is less than or equal to some threshold value, h. Otherwise the cell is `cold'. D-LBSB proposes to migrate unused channels from suitable cold cells to the hot ones through a distributed channel borrowing algorithm. A Markov model for an individual cell is developed, where the state is determined by the number of occupied channels in the cell. The probability of a cell being hot and the call blocking probability in a cell are derived. Detailed simulation experiments are carried out in order to evaluate our pr...

Sajal K. Das; Sanjoy K. Sen; Rajeev Jayaram

1997-01-01T23:59:59.000Z

467

DOE/EIA-0130(97/05) Distribution Category/UC-950 Natural Gas...  

Annual Energy Outlook 2012 (EIA)

Gas Annual. Preliminary Monthly Data Preliminary monthly data in the "balancing item" cat- egory are calculated by subtracting dry gas production, withdrawals from storage,...

468

DOE/EIA-0130(97/04) Distribution Category/UC-950 Natural Gas...  

Annual Energy Outlook 2012 (EIA)

Gas Annual. Preliminary Monthly Data Preliminary monthly data in the "balancing item" cat- egory are calculated by subtracting dry gas production, withdrawals from storage,...

469

DOE/EIA-0130(97/06) Distribution Category/UC-950 Natural Gas...  

Gasoline and Diesel Fuel Update (EIA)

Gas Annual. Preliminary Monthly Data Preliminary monthly data in the "balancing item" cat- egory are calculated by subtracting dry gas production, withdrawals from storage,...

470

DOE/EIA-0130(97/03) Distribution Category/UC-950 Natural Gas...  

Annual Energy Outlook 2012 (EIA)

Gas Annual. Preliminary Monthly Data Preliminary monthly data in the "balancing item" cat- egory are calculated by subtracting dry gas production, withdrawals from storage,...

471

Gas  

Science Conference Proceedings (OSTI)

... Implements a gas based on the ideal gas law. It should be noted that this model of gases is niave (from many perspectives). ...

472

Competition and Prices in the Deregulated Gas Pipeline Network: A Multivariate Cointegration Analysis  

E-Print Network (OSTI)

in the long run. For example, gas prices stochastically inin this paper to anMyzenatural gas prices in the deregulatedthat all of the natural gas price series analyzed are I(1).

Walls, W. David

1993-01-01T23:59:59.000Z

473

STAR FORMATION AND DISTRIBUTIONS OF GAS AND DUST IN THE CIRCINUS CLOUD  

Science Conference Proceedings (OSTI)

We present results of a study on the Circinus cloud based on {sup 13}CO (J = 1 - 0) data as well as visual to near-infrared (JHK{sub S}) extinction maps, to investigate the distributions of gas and dust around the cloud. The global {sup 13}CO distribution of the Circinus cloud is revealed for the first time, and the total molecular mass of the cloud is estimated to be 2.5 x 10{sup 4} M{sub sun} for the assumed distance 700 pc. Two massive clumps in the cloud, called Circinus-W and Circinus-E, have a mass of {approx}5 x 10{sup 3} M{sub sun}. These clumps are associated with a number of young stellar objects (YSOs) searched for in the literature, indicating that they are the most active star-forming sites in Circinus. All of the extinction maps show good agreement with the {sup 13}CO distribution. We derived the average N({sup 13}CO)/A{sub V} ratio in the Circinus cloud to be 1.25 x 10{sup 15} cm{sup -2} mag{sup -1} by comparing the extinction maps with the {sup 13}CO data. The extinction maps also allowed us to probe into the reddening law over the Circinus cloud. We found that there is a clear change in dust properties in the densest regions of Circinus-W and Circinus-E, possibly due to grain growth in the dense cloud interior. Among the YSOs found in the literature, we attempted to infer the ages and masses of the H{alpha} emission-line stars forming in the two clumps, and found that they are likely to be younger than 1 Myr, having a relatively small mass of {approx}<2 M{sub sun} at the zero-age main sequence.

Shimoikura, Tomomi; Dobashi, Kazuhito, E-mail: ikura@u-gakugei.ac.jp [Department of Astronomy and Earth Sciences, Tokyo Gakugei University, Koganei, Tokyo 184-8501 (Japan)

2011-04-10T23:59:59.000Z

474

Network-assisted sink navigation for distributed data gathering: Stability and delay-energy trade-offs  

Science Conference Proceedings (OSTI)

This paper presents a generalized formulation for analyzing stability and performance trade-offs inherent to multi-hop routing in mobile sink based sensor data collection systems. The paper parameterizes the extent of multi-hop routing as a hop-bound ... Keywords: Distributed systems, Mobile, Online algorithms, Sensor network, Unmanned ground and airborne vehicles

Jayanthi Rao; Subir Biswas

2010-02-01T23:59:59.000Z

475

Predicting the spatial distribution of soil profile in Adapazari/Turkey by artificial neural networks using CPT data  

Science Conference Proceedings (OSTI)

The infamous soils of Adapazari, Turkey, that failed extensively during the 46-s long magnitude 7.4 earthquake in 1999 have since been the subject of a research program. Boreholes, piezocone soundings and voluminous laboratory testing have enabled researchers ... Keywords: Artificial neural networks, Cone penetration test, Site characterization, Soil classification, Soil profile, Spatial distribution.

Ersin Arel

2012-06-01T23:59:59.000Z

476

1240 IEEE/ACM TRANSACTIONS ON NETWORKING, VOL. 15, NO. 6, DECEMBER 2007 Distributed Rate Allocation for Inelastic Flows  

E-Print Network (OSTI)

1240 IEEE/ACM TRANSACTIONS ON NETWORKING, VOL. 15, NO. 6, DECEMBER 2007 Distributed Rate Allocation modeled as smooth, Manuscript received November 30, 2005; revised September 17, 2006; approved by IEEE/ACM (NSF) Grants CCF-0440443, CNS-0417607, and CNS-0427677, in part by the Air Force Office of Scientific

Chiang, Mung

477

A hardware and software computational platform for the HiPerDNO (high performance distribution network operation) project  

Science Conference Proceedings (OSTI)

The HiPerDNO project aims to develop new applications to enhance the operational capabilities of Distribution Network Operators (DNO). Their delivery requires an advanced computational strategy. This paper describes a High Performance Computing (HPC) ... Keywords: high performance computing applications, smart grid, systems design

Stefano Salvini; Piotr Lopatka; David Wallom

2011-11-01T23:59:59.000Z

478

A Proposal to Establish an International Network on Biofixation of CO2 and Greenhouse Gas Abatement with Microalgae  

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

Proposal to Establish an International Network Proposal to Establish an International Network on Biofixation of CO 2 and Greenhouse Gas Abatement with Microalgae Paola Pedroni (ppedroni@mail.enitecnologie.eni.it; 39 0252 046615) EniTecnologie S.p.A., Environmental Technology Research Center Via F. Maritano 26 20097 San Donato Milanese, Milan, Italy John Davison (john@ieagreen.demon.co.uk; 44 1242 680753) IEA Greenhouse Gas R&D Programme StokeOrchard, Cheltenham, Gloucestershire GL52 7RZ , United Kingdom Heino Beckert (Heino.Beckert@netl.doe.gov; 304 286 4132) National Energy Technology Laboratory, U.S. Department of Energy 3610 Collins Ferry Road Morgantown, West Virginia 26507, USA Perry Bergman (Perry.Bergman@netl.doe.gov; 412 386 4890) National Energy Technology Laboratory, U.S. Department of Energy

479

PROCEEDINGS OF THE THIRD BERKELEY WORKSHOP ON DISTRIBUTED DATA MANAGEMENT AND COMPUTER NETWORKS  

E-Print Network (OSTI)

machine of the CYCLADES Computer network", IFIP Congress,End Encryption in Secure Computer Networks". USAF ElectronicTechn. Rpt. CCA-77-09, Computer Corp. of America, (Dec.

Authors, Various

2011-01-01T23:59:59.000Z

480

Load Forecasting on Special Days & Holidays in Power Distribution Substation Using Neural & Fuzzy Networks  

Science Conference Proceedings (OSTI)

The demand for neural and fuzzy network techniques to predict the increasing load and its application has changed to an ordinary action. However the facts of the real world caused special and exceptional conditions to be created in this network. Like ... Keywords: Power system, Load forecasting, neural & fuzzy network, Short-term prediction of load.

Saeid Nahi

2006-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas distribution network" 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

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

E-Print Network (OSTI)

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

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

2010-07-12T23:59:59.000Z

482

Assumptions to the Annual Energy Outlook 2002 - Natural Gas Transmission  

Gasoline and Diesel Fuel Update (EIA)

Natural Gas Transmission and Distribution Module Natural Gas Transmission and Distribution Module The NEMS Natural Gas Transmission and Distribution Module (NGTDM) derives domestic natural gas production, wellhead and border prices, end-use prices, and flows of natural gas through the regional interstate network, for both a peak (December through March) and off peak period during each forecast year. These are derived by solving for the market equilibrium across the three main components of the natural gas market: the supply component, the demand component, and the transmission and distribution network that links them. In addition, natural gas flow patterns are a function of the pattern in the previous year, coupled with the relative prices of gas supply options as translated to the represented market

483

Assumptions to the Annual Energy Outlook 2001 - Natural Gas Transmission  

Gasoline and Diesel Fuel Update (EIA)

Natural Gas Transmission and Distribution Module Natural Gas Transmission and Distribution Module The NEMS Natural Gas Transmission and Distribution Module (NGTDM) derives domestic natural gas production, wellhead and border prices, end-use prices, and flows of natural gas through the regional interstate network, for both a peak (December through March) and off peak period during each forecast year. These are derived by solving for the market equilibrium across the three main components of the natural gas market: the supply component, the demand component, and the transmission and distribution network that links them. In addition, natural gas flow patterns are a function of the pattern in the previous year, coupled with the relative prices of gas supply options as translated to the represented market

484

DOE/EIA-0131(96) Distribution Category/UC-960 Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

on the quantity and price of natural gas consumed by electric utilities; and Office of Fossil Energy, "Natural Gas Imports and Exports " for data on the quantity and price of...

485

Using CMT to Determine Gas- and Liquid-phase Distributions in...  

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

it is expected that the high spatial resolution measurements will provide a unique database that can be used for verification of Lattice Boltzmann simulations or network...

486

LaserSPECks:: laser SPECtroscopic trace-gas sensor networks - sensor integration and applications  

Science Conference Proceedings (OSTI)

We introduce a novel laser spectroscopic trace-gas sensor platform, LaserSPECks that integrates recently developed miniature quartz-enhanced photoacoustic spectroscopy (QE-PAS) gas sensing technology. This universal platform uses infrared laser spectroscopy ... Keywords: lasers, sensors, spectroscopy, trace gas sensing

Stephen So; Farinaz Koushanfar; Anatoliy Kosterev; Frank Tittel

2007-04-01T23:59:59.000Z

487

A Technology for Electronic Energy Meters Intelligent Accounting Using Distributed Database over TCP/IP Network  

E-Print Network (OSTI)

4 8 A Technology for Electronic Energy Meters Intelligent Accounting Using Distributed Database processing to allow the adequate information integration and resource control in the energy distribution the energy distribution enterprise information. Reading the electronic energy meters is made through

Borissova, Daniela

488

Sandia`s network for SC `97: Supporting visualization, distributed cluster computing, and production data networking with a wide area high performance parallel asynchronous transfer mode (ATM) network  

Science Conference Proceedings (OSTI)

The advanced networking department at Sandia National Laboratories has used the annual Supercomputing conference sponsored by the IEEE and ACM for the past several years as a forum to demonstrate and focus communication and networking developments. At SC `97, Sandia National Laboratories (SNL), Los Alamos National Laboratory (LANL), and Lawrence Livermore National Laboratory (LLNL) combined their SC `97 activities within a single research booth under the Advance Strategic Computing Initiative (ASCI) banner. For the second year in a row, Sandia provided the network design and coordinated the networking activities within the booth. At SC `97, Sandia elected to demonstrate the capability of the Computation Plant, the visualization of scientific data, scalable ATM encryption, and ATM video and telephony capabilities. At SC `97, LLNL demonstrated an application, called RIPTIDE, that also required significant networking resources. The RIPTIDE application had computational visualization and steering capabilities. This paper documents those accomplishments, discusses the details of their implementation, and describes how these demonstrations support Sandia`s overall strategies in ATM networking.

Pratt, T.J.; Martinez, L.G.; Vahle, M.O.; Archuleta, T.V.; Williams, V.K.

1998-05-01T23:59:59.000Z

489

Network simulation solutions for laminar radiating dissipative magneto-gas dynamic heat transfer over a wedge in non-Darcian porous regime  

Science Conference Proceedings (OSTI)

We study the steady-state, magnetohydrodynamic, optically thick, dissipative gas boundary layer flow and heat transfer past a non-isothermal porous wedge embedded in a scattering, homogenous, isotropic Darcy-Forchheimer porous medium, with significant ... Keywords: Boundary layers, Hartmann number, Joule heating, Magneto-gas dynamics, Network simulation

JoaquíN Zueco; O. Anwar BéG

2009-08-01T23:59:59.000Z

490

Additions to Capacity on the U.S. Natural Gas Pipeline Network: 2005  

Gasoline and Diesel Fuel Update (EIA)

percent increase in capacity additions (see percent increase in capacity additions (see Box, "Capacity Measures," p. 4). Indeed, less new natural gas pipeline mileage was added in 2005 than in any year during the past decade. 1 Energy Information Administration, Office of Oil and Gas, August 2006 1 In 2005, at least 31 natural gas pipeline projects of varying profiles 2 were completed in the lower 48 States and the Gulf of Mexico (Figure 3, Table 1). Of these, 15 were expansions (increases in capacity) on existing natural gas pipelines while the other 16 were 9 system extensions or laterals associated with existing natural gas pipelines, 5 new natural gas pipeline systems, and 2 oil pipeline conversions. Expenditures for natural gas pipeline development amounted to less than $1.3

491

EIA - Assumptions to the Annual Energy Outlook 2008 - Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

Natural Gas Transmission and Distribution Module Natural Gas Transmission and Distribution Module Assumptions to the Annual Energy Outlook 2008 Natural Gas Transmission and Distribution Module Figure 8. Natural Gas Transmission and Distribution Model Regions. Need help, contact the National Energy Information Center at 202-586-8800. The NEMS Natural Gas Transmission and Distribution Module (NGTDM) derives domestic natural gas production, wellhead and border prices, end-use prices, and flows of natural gas through the regional interstate network, for both a peak (December through March) and off peak period during each projection year. These are derived by solving for the market equilibrium across the three main components of the natural gas market: the supply component, the demand component, and the transmission and distribution

492

Assumptions to the Annual Energy Outlook - Natural Gas Transmission and  

Gasoline and Diesel Fuel Update (EIA)

Natural Gas Transmission and Distribution Module Natural Gas Transmission and Distribution Module Assumption to the Annual Energy Outlook Natural Gas Transmission and Distribution Module Figure 8. Natural Gas Transmission and Distribution Model Regions. Having problems, call our National Energy Information Center at 202-586-8800 for help. The NEMS Natural Gas Transmission and Distribution Module (NGTDM) derives domestic natural gas production, wellhead and border prices, end-use prices, and flows of natural gas through the regional interstate network, for both a peak (December through March) and off peak period during each forecast year. These are derived by solving for the market equilibrium across the three main components of the natural gas market: the supply component, the demand component, and the transmission and distribution

493

EIA - Assumptions to the Annual Energy Outlook 2009 - Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

Natural Gas Transmission and Distribution Module Natural Gas Transmission and Distribution Module Assumptions to the Annual Energy Outlook 2009 Natural Gas Transmission and Distribution Module Figure 8. Natural Gas Transmission and distribution Model Regions. Need help, contact the National Energy Information Center at 202-586-8800. The NEMS Natural Gas Transmission and Distribution Module (NGTDM) derives domestic natural gas production, wellhead and border prices, end-use prices, and flows of natural gas through the regional interstate network, for both a peak (December through March) and off peak period during each projection year. These are derived by solving for the market equilibrium across the three main components of the natural gas market: the supply component, the demand component, and the transmission and distribution

494

Wireless Self-powered Visual and NDE Robotic Inspection System for Live Gas Distribution Mains  

SciTech Connect

Carnegie Mellon University (CMU) under contract from Department of Energy/National Energy Technology Laboratory (DoE/NETL) and co-funding from the Northeast Gas Association (NGA), has completed the overall system design of the next-generation Explorer-II (X-II) live gas main NDE and visual inspection robot platform. The design is based on the Explorer-I prototype which was built and field-tested under a prior (also DoE- and NGA co-funded) program, and served as the validation that self-powered robots under wireless control could access and navigate live natural gas distribution mains. The X-II system design ({approx}8 ft. and 66 lbs.) was heavily based on the X-I design, yet was substantially expanded to allow the addition of NDE sensor systems (while retaining its visual inspection capability), making it a modular system, and expanding its ability to operate at pressures up to 750 psig (high-pressure and unpiggable steel-pipe distribution mains). A new electronics architecture and on-board software kernel were added to again improve system performance. A locating sonde system was integrated to allow for absolute position-referencing during inspection (coupled with external differential GPS) and emergency-locating. The power system was upgraded to utilize lithium-based battery-cells for an increase in mission-time. The system architecture now relies on a dual set of end camera-modules to house the 32-bit processors (Single-Board Computer or SBC) as well as the imaging and wireless (off-board) and CAN-based (on-board) communication hardware and software systems (as well as the sonde-coil and -electronics). The drive-module (2 ea.) are still responsible for bracing (and centering) to drive in push/pull fashion the robot train into and through the pipes and obstacles. The steering modules and their arrangement, still allow the robot to configure itself to perform any-angle (up to 90 deg) turns in any orientation (incl. vertical), and enable the live launching and recovery of the system using custom fittings and a (to be developed) launch-chamber/-tube. The battery modules are used to power the system, by providing power to the robot's bus. The support modules perform the functions of centration for the rest of the train as well as odometry pickups using incremental encoding schemes. The electronics architecture is based on a distributed (8-bit) microprocessor architecture (at least 1 in ea. module) communicating to a (one of two) 32-bit SBC, which manages all video-processing, posture and motion control as well as CAN and wireless communications. The operator controls the entire system from an off-board (laptop) controller, which is in constant wireless communication with the robot train in the pipe. The sensor modules collect data and forward it to the robot operator computer (via the CAN-wireless communications chain), who then transfers it to a dedicated NDE data-storage and post-processing computer for further (real-time or off-line) analysis. CMU has fully designed every module in terms of the mechanical, electrical and software elements (architecture only). Substantial effort has gone into pre-prototyping to uncover mechanical, electrical and software issues for critical elements of the design. Design requirements for sensor-providers were also detailed and finalized and provided to them for inclusion in their designs. CMU is expecting to start 2006 with a detailed design effort for both mechanical and electrical components, followed by procurement and fabrication efforts in late winter/spring 2006. The assembly and integration efforts will occupy all of the spring and summer of 2006. Software development will also be a major effort in 2006, and will result in porting and debugging of code on the module- and train-levels in late summer and Fall of 2006. Final pipe mock-up testing is expected in late fall and early winter 2006 with an acceptance demonstration of the robot train (with a sensor-module mock-up) planned to DoE/NGA towards the end of 2006.

Susan Burkett; Hagen Schempf

2006-01-31T23:59:59.000Z

495

APS: Distributed air pollution sensing system on Wireless Sensor and Robot Networks  

Science Conference Proceedings (OSTI)

Rapid emergence of Wireless Sensor and Robot Networks (WSRNs) contributes to the deployment of an environmental monitoring system. Three challenging issues are critical to design of an environmental monitoring system, including energy efficiency of sensors, ... Keywords: Energy efficiency, Environmental monitoring, Sensing region partition, Wireless Sensor and Robot Networks

Huai-Lei Fu; Hou-Chun Chen; Phone Lin

2012-05-01T23:59:59.000Z

496

Short-Wavelength Technology and the Potential For Distributed Networks of Small Radar Systems  

Science Conference Proceedings (OSTI)

Dense networks of short-range radars capable of mapping storms and detecting atmospheric hazards are described. Composed of small X-band (9.4 GHz) radars spaced tens of kilometers apart, these networks defeat the Earth curvature blockage that ...

David McLaughlin; David Pepyne; Brenda Philips; James Kurose; Michael Zink; David Westbrook; Eric Lyons; Eric Knapp; Anthony Hopf; Alfred Defonzo; Robert Contreras; Theodore Djaferis; Edin Insanic; Stephen Frasier; V. Chandrasekar; Francesc Junyent; Nitin Bharadwaj; Yanting Wang; Yuxiang Liu; Brenda Dolan; Kelvin Droegemeier; Jerald Brotzge; Ming Xue; Kevin Kloesel; Keith Brewster; Frederick Carr; Sandra Cruz-Pol; Kurt Hondl; Pavlos Kollias

2009-12-01T23:59:59.000Z

497

A Benders decomposition approach for a distribution network design problem with consolidation and capacity considerations  

Science Conference Proceedings (OSTI)

We develop a model for a strategic freight-forwarding network design problem in which the design decisions involve the locations and capacities of consolidation and deconsolidation centers, and capacities on linehaul linkages as well as the shipment ... Keywords: Benders decomposition, Consolidation, Network design

Halit íSter; Homarjun Agrahari

2011-03-01T23:59:59.000Z

498

A Distributed Virtual Backbone Development Scheme for Ad-Hoc Wireless Networks  

Science Conference Proceedings (OSTI)

The virtual backbone is an approach for solving routing problems in ad-hoc wireless networks. The virtual backbone approach features low latency, moderate routing overhead and is a hybrid scheme that uses the table-driven and on-demand routing ... Keywords: Steiner tree, ad-hoc networks, clustering, routing, virtual backbone

Jyh-Horng Lin; Chyi-Ren Dow; Shiow-Fen Hwang

2003-12-01T23:59:59.000Z

499

Fountain Codes Based Distributed Storage Algorithms for Large-Scale Wireless Sensor Networks  

Science Conference Proceedings (OSTI)

We consider large-scale networks with n nodes, out of which k are in possession, (e.g., have sensed or collected in some other way) k information packets. In the scenarios in which network nodes are vulnerable because of, for example, limited energy ...

Salah A. Aly; Zhenning Kong; Emina Soljanin

2008-04-01T23:59:59.000Z

500

Supporting bursty traffic in wireless sensor networks through a distributed advertisement-based TDMA protocol (ATMA)  

Science Conference Proceedings (OSTI)

Nodes in wireless sensor networks (WSNs) are battery powered and oftentimes deployed in remote and hostile locations. Energy conservation is, therefore, one of the primary goals of MAC protocols designed for these networks. Contention-based protocols ... Keywords: Bursty traffic, Data advertisements, Hybrid, MAC protocol, TDMA, WSN

Surjya Ray; Ilker Demirkol; Wendi Heinzelman

2013-05-01T23:59:59.000Z