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1

Abundant Power | Open Energy Information  

Open Energy Info (EERE)

Abundant Power Abundant Power Place Charlotte, North Carolina Zip 28204 Sector Renewable Energy Product North Carolina-based firm focused on capital formation, financing and project development for renewable energy projects. Coordinates 35.2225°, -80.837539° 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":35.2225,"lon":-80.837539,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

2

NREL: News Feature - Sustainable Solutions Abundant in New Offices  

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

Sustainable Solutions Abundant in New Offices Sustainable Solutions Abundant in New Offices May 24, 2010 Content on this page requires a newer version of Adobe Flash Player. Get Adobe Flash player. When it comes to designing an interior decorative feature for one of the most energy efficient office buildings in the world, very few would consider bringing in a beetle to do the job. But that's what happened at the U.S. Department of Energy's (DOE) Research Support Facility (RSF) located on the National Renewable Energy Laboratory (NREL) campus. In June, the RSF will become home to more than 800 workers from DOE and NREL and building visitors will be greeted with a soaring, two-story high wall entirely covered with wood harvested from the bark beetle infestation that has killed millions of pine trees in the Western U.S.

3

Global Power Solutions LLC | Open Energy Information  

Open Energy Info (EERE)

Power Solutions LLC Power Solutions LLC Jump to: navigation, search Name Global Power Solutions LLC Place Colorado Zip CO 80401 Sector Geothermal energy Product String representation "Global Power So ... sition support." is too long. References Global Power Solutions LLC[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Global Power Solutions LLC is a company located in Colorado . References ↑ "Global Power Solutions LLC" Retrieved from "http://en.openei.org/w/index.php?title=Global_Power_Solutions_LLC&oldid=345917" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version Permanent link

4

PowerIt Solutions | Open Energy Information  

Open Energy Info (EERE)

PowerIt Solutions PowerIt Solutions Jump to: navigation, search Name PowerIt Solutions Place Seattle, Washington Zip 98104 Product Powerit Solutions provides energy demand response and demand control solutions for industrial and commercial applications. Coordinates 47.60356°, -122.329439° 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":47.60356,"lon":-122.329439,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

5

Burbank Water & Power - Energy Solutions Business Rebate Program...  

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

Burbank Water & Power - Energy Solutions Business Rebate Program Burbank Water & Power - Energy Solutions Business Rebate Program Eligibility Commercial Nonprofit Savings For...

6

Pages that link to "Battery Energy Power Solutions Pty Ltd" ...  

Open Energy Info (EERE)

Edit History Share this page on Facebook icon Twitter icon Pages that link to "Battery Energy Power Solutions Pty Ltd" Battery Energy Power Solutions Pty Ltd Jump to:...

7

Changes related to "Battery Energy Power Solutions Pty Ltd" ...  

Open Energy Info (EERE)

Special page Share this page on Facebook icon Twitter icon Changes related to "Battery Energy Power Solutions Pty Ltd" Battery Energy Power Solutions Pty Ltd Jump to:...

8

Eco Power Solutions | Open Energy Information  

Open Energy Info (EERE)

Power Solutions Power Solutions Jump to: navigation, search Name Eco Power Solutions Place Quincy, Massachusetts Zip 2169 Product Massachusetts-based, energy recovery and emission control technology developer. Coordinates 47.237515°, -119.853309° 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":47.237515,"lon":-119.853309,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

9

Battery Energy Power Solutions Pty Ltd | Open Energy Information  

Open Energy Info (EERE)

Data Page Edit with form History Share this page on Facebook icon Twitter icon Battery Energy Power Solutions Pty Ltd Jump to: navigation, search Name Battery Energy Power...

10

Case Study - Florida Power & Light - Smart Grid Solutions Strengthen...  

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

Florida Power & Light July 2012 1 Smart devices have been installed on 78 substation transformer banks. Smart Grid Solutions Strengthen Electric Reliability and Customer Services...

11

Research of IPE Solution Applied to EPR Nuclear Power Project  

Science Conference Proceedings (OSTI)

A nuclear power company is currently in the process of constructing the advanced 3rd generation of EPR Nuclear Power Plant, and its corresponding information system is an overall integrated information management system based on the new concept design. ... Keywords: digital nuclear power plant, IPE solutions, comprehensive application

Daqiao Wang; Fangneng Hu; Yi Luo; Yi Ma

2012-07-01T23:59:59.000Z

12

Fuel Cells as Power Quality Solutions  

Science Conference Proceedings (OSTI)

Fuel cell systems are advancing beyond conventional bulk power applications. Now, technological approaches are allowing dynamic responses that can solve short-term power quality problems, specifically voltage sags and momentary interruptions. In addition to solving short-term problems, fuel cells also can provide long-term back-up and stepped-load changes using traditional, clean, natural gas fuel. This report describes the need for and applications of advanced fuel cell systems for end-use customers.

1999-10-20T23:59:59.000Z

13

Emission Power Solutions Plc EPS | Open Energy Information  

Open Energy Info (EERE)

Power Solutions Plc EPS Power Solutions Plc EPS Jump to: navigation, search Name Emission & Power Solutions Plc (EPS) Place Carlsbad, California Zip 92008 Sector Efficiency Product California-based energy efficiency company, specializing in fuel efficiency. Coordinates 31.60396°, -100.641609° 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":31.60396,"lon":-100.641609,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

14

Glendale Water and Power - Solar Solutions Program | Department of Energy  

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

Solar Solutions Program Solar Solutions Program Glendale Water and Power - Solar Solutions Program < Back Eligibility Commercial Industrial Low-Income Residential Multi-Family Residential Nonprofit Residential Savings Category Solar Buying & Making Electricity Maximum Rebate 50% of the gross installed system cost Payment will not exceed $100,000 per customer per fiscal year Program Info State California Program Type Utility Rebate Program Rebate Amount Program is on hold Provider Glendale Water and Power '''''Note: This program is currently closed. Contact the utility for more information or to be put on a wait list for when the program is reopened. ''''' The Solar Solutions program provides all customer groups with an incentive to install photovoltaic (PV) systems on their homes and buildings. Rebate

15

Burbank Water and Power - Energy Solutions Business Rebate Program |  

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

Energy Solutions Business Rebate Program Energy Solutions Business Rebate Program Burbank Water and Power - Energy Solutions Business Rebate Program < Back Eligibility Commercial Nonprofit Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Other Heat Pumps Heating Appliances & Electronics Commercial Lighting Lighting Manufacturing Home Weatherization Insulation Design & Remodeling Maximum Rebate Each incentive will may not exceed 25% of the installed cost of a measure. The annual customer rebate total may not exceed $100,000. Program Info State California Program Type Utility Rebate Program Rebate Amount Central Air Conditioning: $150 - $500 per ton Heat Pump Retrofits: $175 - $525 per ton Motor Replacements: $35 - $1,260 Thermal Energy Storage: $800 per KW saved Lighting/Chiller Retrofits/Cool Roofing: $0.05 per first year kWh savings

16

Solutions for Summer Electric Power Shortages: Demand Response and its Applications in Air Conditioning and Refrigerating Systems  

E-Print Network (OSTI)

Air Conditioning, & Electric Power Machinery 29(1): 1-4 Solutions for Summer Electric Power Shortages: DemandUSA Solutions for summer electric power shortages: Demand

Han, Junqiao; Piette, Mary Ann

2008-01-01T23:59:59.000Z

17

21st century energy solutions. Coal and Power Systems FY2001 program briefing  

Science Conference Proceedings (OSTI)

The continued strength of American's economy depends on the availability of affordable energy, which has long been provided by the Nations rich supplies of fossil fuels. Forecasts indicate that fossil fuels will continue to meet much of the demand for economical electricity and transportation fuels for decades to come. It is projected that natural gas, oil, and coal will supply nearly 90% of US energy in 2020, with coal fueling around 50% of the electricity. It is essential to develop ways to achieve the objectives for a cleaner environment while using these low-cost, high-value fuels. A national commitment to improved technologies--for use in the US and abroad--is the solution. The Coal and Power Systems program is responding to this commitment by offering energy solutions to advance the clean, efficient, and affordable use of the Nations abundant fossil fuel resources. These solutions include: (1) Vision 21--A multi-product, pollution-free energy plant--producing electricity, fuels, and/or industry heat--could extract 80% or more of the energy value of coal and 85% or more of the energy value of natural gas; (2) Central Power Systems--Breakthrough turbines and revolutionary new gasification technologies that burn less coal and gas to obtain energy, while reducing emissions; (3) Distributed Generation--Fuel cell technology providing highly efficient, clean modular power; (4) Fuels--The coproduction of coal-derived transportation fuels and power from gasification-based technology; (5) Carbon Sequestration--Capturing greenhouse gases from the exhaust gases of combustion or other sources, or from the atmosphere itself, and storing them for centuries or recycling them into useful products; and (6) Advanced Research--Going beyond conventional thinking in the areas of computational science, biotechnology, and advanced materials.

None

2001-01-01T23:59:59.000Z

18

Artificial bee colony algorithm solution for optimal reactive power flow  

Science Conference Proceedings (OSTI)

Artificial bee colony (ABC) algorithm is an optimization algorithm based on the intelligent foraging behavior of honeybee swarm. Optimal reactive power flow (ORPF) based on ABC algorithm to minimize active power loss in power systems is studied in this ... Keywords: Artificial bee colony, Optimal reactive power flow, Penalty function, Power system

Kr?at Ayan; Ula? K?l?

2012-05-01T23:59:59.000Z

19

Distributed Generation and Virtual Power Plants: Barriers and Solutions.  

E-Print Network (OSTI)

??The present technological and regulatory power system needs to adapt to the increase in the share of distributed generation. This research focuses on the applicability (more)

Olejniczak, T.

2011-01-01T23:59:59.000Z

20

Integrative Power Supply Solution for Future Generation Vehicles.  

E-Print Network (OSTI)

?? Abstract: How to secure the power supply for future generation vehicles is an open question. This thesis uses Web-HIPRE as a tool of Decision (more)

Zhou, Qinsheng

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" 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

Case Study - Florida Power & Light - Smart Grid Solutions Strengthen Reliability and Services - July 2012.pdf  

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

Florida Power & Light Florida Power & Light July 2012 1 Smart devices have been installed on 78 substation transformer banks. Smart Grid Solutions Strengthen Electric Reliability and Customer Services in Florida With 4.6 million customers, nearly 70,000 miles of power lines and 16 power plants, Florida Power and Light Company (FPL) is one of the nation's largest electric utilities. FPL says maintaining reliable service while keeping rates affordable is "Job One." While pursuing its mission, FPL is implementing "Energy Smart Florida," which is the largest and one of the most comprehensive of the U.S. Department of

22

Accretion-Powered Stellar Winds III: Spin Equilibrium Solutions  

E-Print Network (OSTI)

We compare the stellar wind torque calculated in a previous work (Paper II) to the spin-up and spin-down torques expected to arise from the magnetic interaction between a slowly rotating ($\\sim 10$% of breakup) pre-main-sequence star and its accretion disk. This analysis demonstrates that stellar winds can carry off orders of magnitude more angular momentum than can be transferred to the disk, provided that the mass outflow rates are greater than the solar wind. Thus, the equilibrium spin state is simply characterized by a balance between the angular momentum deposited by accretion and that extracted by a stellar wind. We derive a semi-analytic formula for predicting the equilibrium spin rate as a function only of the ratio of $\\dot M_{\\rm w} / \\dot M_{\\rm a}$ and a dimensionless magnetization parameter, $\\Psi \\equiv B_*^2 R_*^2 (\\dot M_{\\rm a} v_{\\rm esc})^{-1}$, where $\\dot M_{\\rm w}$ is the stellar wind mass outflow rate, $\\dot M_{\\rm a}$ the accretion rate, $B_*$ the stellar surface magnetic field strength, $R_*$ the stellar radius, and $v_{\\rm esc}$ the surface escape speed. For parameters typical of accreting pre-main-sequence stars, this explains spin rates of $\\sim 10$% of breakup speed for $\\dot M_{\\rm w} / \\dot M_{\\rm a} \\sim 0.1$. Finally, the assumption that the stellar wind is driven by a fraction of the accretion power leads to an upper limit to the mass flow ratio of $\\dot M_{\\rm w} / \\dot M_{\\rm a} \\la 0.6$.

Sean Matt; Ralph E. Pudritz

2008-01-02T23:59:59.000Z

23

Combined Heat & Power (CHP) -A Clean Energy Solution for Industry  

E-Print Network (OSTI)

From the late 1970's to the early 1990's cogeneration or CHP saw enormous growth, especially in the process industries. By 1994, CHP provided 42 GW of electricity generation capacity -about 6 percent of the U.S. total. Three manufacturing industries (Pulp and paper -59 Twh; Chemicals -47 Twh; Petroleum refuting -IS Twh) accounted for 85% of all cogenerated electricity in 1994. But since the mid-1990s, installation of new CHP has slowed dramatically. This slow down is due to uncertainties and policies associated with electric utility restructuring and impending environmental regulations. By 1997, a group comprising CHP manufacturers and nonprofit groups had formed to identify these CHP barriers and to work to remove them. At the same time several studies on the role of energy efficiency in greenhouse gas emissions reductions identified CHP as one of the most promising options. These studies showed a key window of opportunity-many new or updated highly-efficient and lower-cost CHP systems will become available just when the industrial "boiler baby boom" retires. These technology opportunities take advantage of advances in materials, power electronics, and computer-aided design techniques have increased equipment efficiency and reliability dramatically, while reducing costs and emissions of pollutants. This next generation of turbines, fuel cells, and reciprocating engines is the result of intensive, collaborative research, development, and demonstration by government and industry. These have allowed for new configurations that reduce size yet increase output. Turbines are now cost-effective for systems down to 50 KW, the size of a small office or restaurant. Even smaller equipment is on the horizon. However, without rapid action, this opportune nexus of market, regulatory, and technology opportunities could dissipate. In fiscal year 1999, we launched the U. S. Department of Energy CHP Challenge program. By 2002 when the Challenge is complete, it should have substantially increased the use of CHP systems in industry and buildings. We estimate that efforts such as CHP Challenge could result in more than 50 MW of additional CHP electricity generation being installed at greater than 60 percent fuel-use efficiency (nearly double the average grid efficiency) by 2010. This paper will report on the first results of CHP Challenge and discuss future activities-especially in the industrial sector.

Parks, H.; Hoffman, P.; Kurtovich, M.

1999-05-01T23:59:59.000Z

24

Evaluation of Embedded Solutions for Decreasing Sensitivity of End-Use Equipment to Power Quality Variations  

Science Conference Proceedings (OSTI)

This document provides a conceptual overview of embedded solutions for sensitivity to power quality variations, assesses its benefits, and describes its potential in four end-use equipment categories. The report focuses on the technical and market issues associated with equipment modification provided by original equipment manufacturers (OEMs) to improve equipment tolerance to various power quality phenomena. The report describes approaches and technologies for improving performance, discusses specific i...

1999-12-14T23:59:59.000Z

25

Energy Conditions Constraints and Stability of Power Law Solutions in f(R,T) Gravity  

E-Print Network (OSTI)

The energy conditions are derived in the context of $f(R,T)$ gravity, where $R$ is the Ricci scalar and $T$ is the trace of the energy-momentum tensor, which can reduce to the well-known conditions in $f(R)$ gravity and general relativity. We present the general inequalities set by the energy conditions in terms of Hubble, deceleration, jerk and snap parameters. In this study, we concentrate on two particular models of $f(R,T)$ gravity namely, $f(R)+\\lambda{T}$ and $R+2f(T)$. The exact power-law solutions are obtained for these two cases in homogeneous and isotropic $f(R,T)$ cosmology. Finally, we find certain constraints which have to be satisfied to ensure that power law solutions may be stable and match the bounds prescribed by the energy conditions.

Muhammad Sharif; Muhammad Zubair

2012-10-15T23:59:59.000Z

26

HYDROGEN STORAGE SOLUTIONS IN SUPPORT OF DOD WARFIGHTER PORTABLE POWER APPLICATIONS  

DOE Green Energy (OSTI)

From Personal Digital Assistants (PDAs) to cell phones our high-tech world, today, is demanding smaller, lighter weight and higher capacity portable power devices. Nowhere has this personal power surge been more evident than in today's U.S Warfighter. The modern Warfighter is estimated to carry from 65 to 95 pounds of supplies in the field with over 30 pounds of this dedicated to portable power devices. These devices include computer displays, infrared sights, Global Positioning Systems (GPS), night vision and a variety of other sensor technologies. Over 80% of the energy needed to power these devices comes from primary (disposable) batteries. It is estimated that a brigade will consume as much as 7 tons of batteries in a 72 hour mission at a cost of $700,000. A recent comprehensive study on the energy needs of the future warrior published by the National Academy of Science in 2004 made a variety of recommendations for average power systems from 20 to 1,000 watts. For lower power systems recommendations included pursuing science and technology initiatives focused on: (1) 300 watt-hours per kilogram (Wh/kg) secondary battery technologies; (2) smart hybrids; and (3) fuel cells (with greater than 6 wt% hydrogen storage). Improved secondary (rechargeable) batteries may be the ideal solution for military power systems due to their ease of use and public acceptance. However, a 3X improvement in their specific energy density is not likely anytime soon. Today's Lithium Ion batteries, at about 150 Wh/kg, fall well short of the energy density that is required. Future battery technology may not be the answer since many experts do not predict more than a 2X improvement in Lithium battery systems over the next 10 years. That is why most auto companies have abandoned all electric vehicles in favor of fuel cells and hybrid vehicles. Fuel cells have very high specific energy densities but achieving high energy values will depend on the energy density and the storage method of its fuel. Improved methods of safely and efficiently storing larger amounts of hydrogen will be a key development area for portable fuel cell power systems. Despite their high potential energy, fuel cells exhibit low power densities. That is why many systems today are going hybrid. Hybrid systems typically combine low energy and high power components with high energy and low power components. Typical configurations include capacitors and fuel cells or batteries and fuel cells. If done correctly, a hybrid system often can have both high energy and high power density even higher than any of the individual components.

Motyka, T.

2009-01-06T23:59:59.000Z

27

Solutions for Summer Electric Power Shortages: Demand Response and its Applications in Air Conditioning and Refrigerating Systems  

E-Print Network (OSTI)

Berkeley, CA94720, USA Summary Demand response (DR) is anVirginia, USA in 1961, female Research Director, PIER DemandUSA Solutions for summer electric power shortages: Demand

Han, Junqiao; Piette, Mary Ann

2008-01-01T23:59:59.000Z

28

Combined Heat and Power: Effective Energy Solutions for a Sustainable Future  

SciTech Connect

Combined Heat and Power (CHP) solutions represent a proven and effective near-term energy option to help the United States enhance energy efficiency, ensure environmental quality, promote economic growth, and foster a robust energy infrastructure. Using CHP today, the United States already avoids more than 1.9 Quadrillion British thermal units (Quads) of fuel consumption and 248 million metric tons of carbon dioxide (CO{sub 2}) emissions annually compared to traditional separate production of electricity and thermal energy. This CO{sub 2} reduction is the equivalent of removing more than 45 million cars from the road. In addition, CHP is one of the few options in the portfolio of energy alternatives that combines environmental effectiveness with economic viability and improved competitiveness. This report describes in detail the four key areas where CHP has proven its effectiveness and holds promise for the future as an: (1) Environmental Solution: Significantly reducing CO{sub 2} emissions through greater energy efficiency; (2) Competitive Business Solution: Increasing efficiency, reducing business costs, and creating green-collar jobs; (3) Local Energy Solution: Deployable throughout the US; and (4) Infrastructure Modernization Solution: Relieving grid congestion and improving energy security. CHP should be one of the first technologies deployed for near-term carbon reductions. The cost-effectiveness and near-term viability of widespread CHP deployment place the technology at the forefront of practical alternative energy solutions such as wind, solar, clean coal, biofuels, and nuclear power. Clear synergies exist between CHP and most other technologies that dominate the energy and environmental policy dialogue in the country today. As the Nation transforms how it produces, transports, and uses the many forms of energy, it must seize the clear opportunity afforded by CHP in terms of climate change, economic competitiveness, energy security, and infrastructure modernization. The energy efficiency benefits of CHP offer significant, realistic solutions to near- and long-term energy issues facing the Nation. With growing demand for energy, tight supply options, and increasing environmental constraints, extracting the maximum output from primary fuel sources through efficiency is critical to sustained economic development and environmental stewardship. Investment in CHP would stimulate the creation of new 'green-collar' jobs, modernize aging energy infrastructure, and protect and enhance the competitiveness of US manufacturing industries. The complementary roles of energy efficiency, renewable energy, and responsible use of traditional energy supplies must be recognized. CHP's proven performance and potential for wider use are evidence of its near-term applicability and, with technological improvements and further elimination of market barriers, of its longer term promise to address the country's most important energy and environmental needs. A strategic approach is needed to encourage CHP where it can be applied today and address the regulatory and technical challenges preventing its long-term viability. Experience in the United States and other countries shows that a balanced set of policies, incentives, business models, and investments can stimulate sustained CHP growth and allow all stakeholders to reap its many well-documented benefits.

Shipley, Ms. Anna [Sentech, Inc.; Hampson, Anne [Energy and Environmental Analysis, Inc., an ICF Company; Hedman, Mr. Bruce [Energy and Environmental Analysis, Inc., an ICF Company; Garland, Patricia W [ORNL; Bautista, Paul [Sentech, Inc.

2008-12-01T23:59:59.000Z

29

Accretion-Powered Stellar Winds II: Numerical Solutions for Stellar Wind Torques  

E-Print Network (OSTI)

[Abridged] In order to explain the slow rotation observed in a large fraction of accreting pre-main-sequence stars (CTTSs), we explore the role of stellar winds in torquing down the stars. For this mechanism to be effective, the stellar winds need to have relatively high outflow rates, and thus would likely be powered by the accretion process itself. Here, we use numerical magnetohydrodynamical simulations to compute detailed 2-dimensional (axisymmetric) stellar wind solutions, in order to determine the spin down torque on the star. We explore a range of parameters relevant for CTTSs, including variations in the stellar mass, radius, spin rate, surface magnetic field strength, the mass loss rate, and wind acceleration rate. We also consider both dipole and quadrupole magnetic field geometries. Our simulations indicate that the stellar wind torque is of sufficient magnitude to be important for spinning down a ``typical'' CTTS, for a mass loss rate of $\\sim 10^{-9} M_\\odot$ yr$^{-1}$. The winds are wide-angle, self-collimated flows, as expected of magnetic rotator winds with moderately fast rotation. The cases with quadrupolar field produce a much weaker torque than for a dipole with the same surface field strength, demonstrating that magnetic geometry plays a fundamental role in determining the torque. Cases with varying wind acceleration rate show much smaller variations in the torque suggesting that the details of the wind driving are less important. We use our computed results to fit a semi-analytic formula for the effective Alfv\\'en radius in the wind, as well as the torque. This allows for considerable predictive power, and is an improvement over existing approximations.

Sean Matt; Ralph E. Pudritz

2008-01-02T23:59:59.000Z

30

Distributed Resources Premium Power Solutions: Market Analysis and Business Case for Distributed Resources-Based Premium Power  

Science Conference Proceedings (OSTI)

It has been postulated that distributed resources (DR) can solve power quality and reliability problems. While the application generation and storage technologies is quite common for providing premium power, extracting DR benefits from these installations, whether existing or future, is less well developed. This report analyzes different DR applications and options for improving power quality and reliability at end user facilities. In this analysis, DR-capable technologies refer to generator and storage ...

2003-01-29T23:59:59.000Z

31

Standby power use: How big is the problem? What policies and technical solutions can address it?  

E-Print Network (OSTI)

the standby power consumption of these devices in order tothe lowest power- consumption condition when a device ispower consumption in China is complicated by the fact that a large portion of Chinese consumers disconnect their electronic devices

2002-01-01T23:59:59.000Z

32

Helioseismology and Solar Abundances  

E-Print Network (OSTI)

Helioseismology has allowed us to study the structure of the Sun in unprecedented detail. One of the triumphs of the theory of stellar evolution was that helioseismic studies had shown that the structure of solar models is very similar to that of the Sun. However, this agreement has been spoiled by recent revisions of the solar heavy-element abundances. Heavy element abundances determine the opacity of the stellar material and hence, are an important input to stellar model calculations. The models with the new, low abundances do not satisfy helioseismic constraints. We review here how heavy-element abundances affect solar models, how these models are tested with helioseismology, and the impact of the new abundances on standard solar models. We also discuss the attempts made to improve the agreement of the low-abundance models with the Sun and discuss how helioseismology is being used to determine the solar heavy-element abundance. A review of current literature shows that attempts to improve agreement between solar models with low heavy-element abundances and seismic inference have been unsuccessful so far. The low-metallicity models that have the least disagreement with seismic data require changing all input physics to stellar models beyond their acceptable ranges. Seismic determinations of the solar heavy-element abundance yield results that are consistent with the older, higher values of the solar abundance, and hence, no major changes to the inputs to solar models are required to make higher-metallicity solar models consistent with helioseismic data.

Sarbani Basu; H. M. Antia

2007-11-28T23:59:59.000Z

33

Thrifty BTB: A comprehensive solution for dynamic power reduction in branch target buffers  

Science Conference Proceedings (OSTI)

We propose Thrifty BTB, a mechanism to reduce the dynamic power dissipated by the BTB. We studied two mechanisms that reduce dynamic power dissipation. The first one is a serial-BTB configuration. The second mechanism is the filter-BTB, a combination ... Keywords: Branch prediction, Branch target buffer, Dynamic power, Microarchitecture

Roger Kahn; Shlomo Weiss

2008-11-01T23:59:59.000Z

34

The Solar Argon Abundance  

E-Print Network (OSTI)

The solar argon abundance cannot be directly derived by spectroscopic observations of the solar photosphere. The solar Ar abundance is evaluated from solar wind measurements, nucleosynthetic arguments, observations of B stars, HII regions, planetary nebulae, and noble gas abundances measured in Jupiter's atmosphere. These data lead to a recommended argon abundance of N(Ar) = 91,200(+/-)23,700 (on a scale where Si = 10^6 atoms). The recommended abundance for the solar photosphere (on a scale where log N(H) = 12) is A(Ar)photo = 6.50(+/-)0.10, and taking element settling into account, the solar system (protosolar) abundance is A(Ar)solsys = 6.57(+/-)0.10.

Katharina Lodders

2007-10-24T23:59:59.000Z

35

Cost-Effective Pole or Pad Mounted Power Quality Solution: Component and System Cost Analysis  

Science Conference Proceedings (OSTI)

Static Series Compensation (SSC) devices, sometines called "dynamic voltage restorers" or DVRs, have been available on the marketplace since about 1994. These devices are designed to mitigate voltage sags and swells originating from the power system by injecting voltage in series with the power supply. The additive effect of the injected voltage produces an essentially undisturbed voltage for the load. There are several vendors presently producing SSCs. These devices all have essentially the same power e...

2000-11-21T23:59:59.000Z

36

Cost Effective Pole or Pad Mounted Power Quality Solution: Functional Specifications  

Science Conference Proceedings (OSTI)

Static Series Compensation (SSC) devices, sometimes called "dynamic voltage restorers" or DVRs, have been available on the marketplace since about 1994. These devices are designed to mitigate voltage sags and swells originating from the power system by injecting voltage in series with the power supply. The additive effect of the injected voltage produces an essentially undisturbed voltage for the load. There are several vendors presently producing SSCs. These devices all have essentially the same power e...

2000-08-22T23:59:59.000Z

37

Distributed multi-phase distribution power flow: modeling, solution algorithm, and simulation results.  

E-Print Network (OSTI)

??With the increasing presence of distributed intelligence throughout power distribution systems, the possibilities for distributed control and operation schemes are becoming progressively more attractive and (more)

Kleinberg, Michael R.

2007-01-01T23:59:59.000Z

38

Fuel cells provide a revenue-generating solution to power quality problems  

SciTech Connect

Electric power quality and reliability are becoming increasingly important as computers and microprocessors assume a larger role in commercial, health care and industrial buildings and processes. At the same time, constraints on transmission and distribution of power from central stations are making local areas vulnerable to low voltage, load addition limitations, power quality and power reliability problems. Many customers currently utilize some form of premium power in the form of standby generators and/or UPS systems. These include customers where continuous power is required because of health and safety or security reasons (hospitals, nursing homes, places of public assembly, air traffic control, military installations, telecommunications, etc.) These also include customers with industrial or commercial processes which can`t tolerance an interruption of power because of product loss or equipment damage. The paper discusses the use of the PC25 fuel cell power plant for backup and parallel power supplies for critical industrial applications. Several PC25 installations are described: the use of propane in a PC25; the use by rural cooperatives; and a demonstration of PC25 technology using landfill gas.

King, J.M. Jr.

1996-03-01T23:59:59.000Z

39

Standby power use: How big is the problem? What policies and technical solutions can address it?  

E-Print Network (OSTI)

K. Lane. 2001. "Suspecting Standby? Domestic Levels and theMeasurements of Residential Standby Power Use in China."www.energyefficient.com.au/standby. Harrington L. and P.

2002-01-01T23:59:59.000Z

40

Motivating co-ordination of power management solutions in data centers  

Science Conference Proceedings (OSTI)

Power and cooling are emerging to be key challenges in data center environments. A recent IDC report estimated the worldwide spending on enterprise power and cooling to be more than $30 billion and likely to even surpass spending on new server hardware. ...

Ramya Raghavendra; Parthasarathy Ranganathan; Vanish Talwar; Xiaoyun Zhu; Zhikui Wang

2007-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" 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

Distributed Multi-Phase Distribution Power Flow: Modeling, Solution Algorithm and Simulation Results  

Science Conference Proceedings (OSTI)

With the increasing installation of power electronics and automated devices, the possibilities for distributed control and operation schemes are becoming progressively more attractive and feasible. This paper presents a new method for calculating distribution ...

Michael Kleinberg; Karen Miu; Chika Nwankpa

2008-08-01T23:59:59.000Z

42

A simulation solution of the integration of wind power into an electricity generating network  

Science Conference Proceedings (OSTI)

To effectively harness the power of wind electricity generation, significant infrastructure challenges exist. First, the individual wind turbines must be sited and constructed as part of a wind farm. Second, the wind farm must be connected to the electricity ...

Thomas F. Brady

2009-12-01T23:59:59.000Z

43

Beyond Sun Power: An Enterprise Approach to Energy and Learning Solutions  

Science Conference Proceedings (OSTI)

Renewable energy and sustainability play fundamental roles in reducing dependence on nonrenewable fossil fuel resources, as well as in mitigating atmospheric greenhouse gases. Hawaiian Electric Company, Inc. (HECO) has a history of providing partial funding, engineering and project management support in the installation, operation and management of solar photovoltaic (PV) power systems at various public schools in Hawaii through its Sun Power for Schools program.

2010-08-19T23:59:59.000Z

44

Solutions for Summer Electric Power Shortages: Demand Response andits Applications in Air Conditioning and Refrigerating Systems  

SciTech Connect

Demand response (DR) is an effective tool which resolves inconsistencies between electric power supply and demand. It further provides a reliable and credible resource that ensures stable and economical operation of the power grid. This paper introduces systematic definitions for DR and demand side management, along with operational differences between these two methods. A classification is provided for DR programs, and various DR strategies are provided for application in air conditioning and refrigerating systems. The reliability of DR is demonstrated through discussion of successful overseas examples. Finally, suggestions as to the implementation of demand response in China are provided.

Han, Junqiao; Piette, Mary Ann

2007-11-30T23:59:59.000Z

45

Electronic Performance Support System: An Application Guideline: Solving Power Plant Workforce Management Issues with Electronic Performance Support and Knowledge Management Solutions  

Science Conference Proceedings (OSTI)

This report provides guidance on how to apply electronic performance support system (EPSS) solutions to address fossil and hydroelectric power plant employee performance issues arising from the aging workforce and changing demographics of future employees.

2004-03-31T23:59:59.000Z

46

Assessing Power Quality Impacts and Solutions for the California Food Processing Industry  

Science Conference Proceedings (OSTI)

Modern food processing equipment can easily be impacted by very brief voltage reductions, commonly known as voltage sags, originating from utility distribution and transmission systems. Even minor voltage sags can lead to unscheduled process downtime, delayed client orders, loss of clients, and lost revenue. This project, sponsored by the California Energy Commission (CEC), analyzed the impact of power quality on the California food processing industry and made recommendations for short-term and long-ter...

2005-04-12T23:59:59.000Z

47

Nebular Abundance Errors  

E-Print Network (OSTI)

The errors inherent to the use of the standard "ionization correction factor" ("i_CF") method of calculating nebular conditions and relative abundances of H, He, N, O, Ne, S, and Ar in emission line nebulae have been investigated under conditions typical for planetary nebulae. The photoionization code CLOUDY was used to construct a series of model nebulae with properties spanning the range typical of PNe. Its radial "profiles" of bright, frequently observed optical emission lines were then summed over a variety of "apertures" to generate sets of emission line measurements. These resulting line ratios were processed using the i_CF method to "derive" nebular conditions and abundances. We find that for lines which are summed over the entire nebula the i_CF-derived abundances differ from the input abundances by less than 5% for He and O up to 25% or more for Ne, S, and Ar. For resolved observations, however, the discrepancies are often much larger and are systematically variable with radius. This effect is especially pronounced in low-ionization zones where nitrogen and oxygen are neutral or once-ionized such as in FLIERs, ansae and ionization fronts. We argue that the reports of stellar-enriched N in the FLIERs of several PNe are probably specious.

J. Alexander; B. Balick

1997-04-30T23:59:59.000Z

48

Correspondence between $f(G)$ Gravity and Holographic Dark Energy via Power-law Solution  

E-Print Network (OSTI)

In this paper, we discuss cosmological application of holographic Dark Energy (HDE) in the framework of $f(G)$ modified gravity. For this purpose, we construct $f(G)$ model with the inclusion of HDE and a well-known power law form of the scale factor $a(t)$. The reconstructed $f(G)$ is found to satisfy a sufficient condition for a realistic modified gravity model. We find quintessence behavior of effective equation of state (EoS) parameter $\\omega_{DE}$ through energy conditions in this context. Also, we observe that the squared speed of sound $v_s^2$ remains negative which shows the instability of HDE $f(G)$ model.

Abdul Jawad; Antonio Pasqua; Surajit Chattopadhyay

2012-11-22T23:59:59.000Z

49

Accretion-powered Stellar Winds as a Solution to the Stellar Angular Momentum Problem  

E-Print Network (OSTI)

We compare the angular momentum extracted by a wind from a pre-main-sequence star to the torques arising from the interaction between the star and its Keplerian accretion disk. We find that the wind alone can counteract the spin-up torque from mass accretion, solving the mystery of why accreting pre-main-sequence stars are observed to spin at less than 10% of break-up speed, provided that the mass outflow rate in the stellar winds is ~10% of the accretion rate. We suggest that such massive winds will be driven by some fraction $\\epsilon$ of the accretion power. For observationally constrained typical parameters of classical T-Tauri stars, $\\epsilon$ needs to be between a few and a few tens of percent. In this scenario, efficient braking of the star will terminate simultaneously with accretion, as is usually assumed to explain the rotation velocities of stars in young clusters.

Sean Matt; Ralph E. Pudritz

2005-10-03T23:59:59.000Z

50

Innovative Phase Change Thermal Energy Storage Solution for Baseload Power Phase 1 Final Report  

SciTech Connect

The primary purpose of this project is to develop and validate an innovative, scalable phase change salt thermal energy storage (TES) system that can interface with Infinias family of free-piston Stirling engines (FPSE). This TES technology is also appropriate for Rankine and Brayton power converters. Solar TES systems based on latent heat of fusion rather than molten salt temperature differences, have many advantages that include up to an order of magnitude higher energy storage density, much higher temperature operation, and elimination of pumped loops for most of Infinias design options. DOE has funded four different concepts for solar phase change TES, including one other Infinia awarded project using heat pipes to transfer heat to and from the salt. The unique innovation in this project is an integrated TES/pool boiler heat transfer system that is the simplest approach identified to date and arguably has the best potential for minimizing the levelized cost of energy (LCOE). The Phase 1 objectives are to design, build and test a 1-hour TES proof-of-concept lab demonstrator integrated with an Infinia 3 kW Stirling engine, and to conduct a preliminary design of a 12-hour TES on-sun prototype.

Qiu, Songgang

2013-05-15T23:59:59.000Z

51

Part of the Climate Change Problem . . . and the Solution? Chinese-Made Wind Power Technology and Opportunities for Dissemination  

E-Print Network (OSTI)

2004. Grid Connected Wind Power in China. NREL/Commercialization of Wind Power Technology in China. Coal and Candles: Wind Powerin China. EnergyPolicy

Lewis, Joanna I.

2005-01-01T23:59:59.000Z

52

Abundance,Biomass, and Production  

E-Print Network (OSTI)

Abundance,Biomass, and Production Daniel B.Hayes,James R.Bence,Thomas J.Kwak, and Bradley E, the proportion of fish present that are #12;Abundance,Biomass,and Production 329 detected (i.e., sightability; available at http://www.ruwpa.st-and.ac.uk/distance/). #12;Abundance,Biomass,and Production 331 Box 8

Kwak, Thomas J.

53

Constraining solar abundances using helioseismology  

E-Print Network (OSTI)

Recent analyses of solar photospheric abundances suggest that the oxygen abundance in the solar atmosphere needs to be revised downwards. In this study we investigate the consequence of this revision on helioseismic analyses of the depth of the solar convection zone and the helium abundance in the solar envelope and find no significant effect. We also find that the revised abundances along with the current OPAL opacity tables are not consistent with seismic data. A significant upward revision of the opacity tables is required to make solar models with lower oxygen abundance consistent with seismic observations.

Sarbani Basu; H. M. Antia

2004-03-19T23:59:59.000Z

54

Modeling and simulation of CO2 removal from power plant flue gas by PG solution in a hollow fiber membrane contactor  

Science Conference Proceedings (OSTI)

The absorption of carbon dioxide from nitrogen-carbon dioxide mixture was investigated in a polytetrafluoroethylene (PTFE) hollow fiber membrane module using potassium glycinate (PG) aqueous solution. A mathematical model was developed to simulate the ... Keywords: Absorption, Flue gas, Membrane contactor, Modeling, Potassium glycinate, Power plant

S. Eslami; S. M. Mousavi; S. Danesh; H. Banazadeh

2011-08-01T23:59:59.000Z

55

Determining solar abundances using helioseismology  

E-Print Network (OSTI)

The recent downward revision of solar photospheric abundances of Oxygen and other heavy elements has resulted in serious discrepancies between solar models and solar structure as determined through helioseismology. In this work we investigate the possibility of determining the solar heavy-element abundance without reference to spectroscopy by using helioseismic data. Using the dimensionless sound-speed derivative in the solar convection zone, we find that the heavy element abundance, Z, of 0.0172 +/- 0.002, which is closer to the older, higher value of the abundances.

H. M. Antia; Sarbani Basu

2006-02-28T23:59:59.000Z

56

Solar System Abundances of the Elements  

E-Print Network (OSTI)

Representative abundances of the chemical elements for use as a solar abundance standard in astronomical and planetary studies are summarized. Updated abundance tables for solar system abundances based on meteorites and photospheric measurements are presented.

Lodders, Katharina

2010-01-01T23:59:59.000Z

57

Solutions for Summer Electric Power Shortages: Demand Response and its Applications in Air Conditioning and Refrigerating Systems  

E-Print Network (OSTI)

Research Director, PIER Demand Response Research CenterAssessment of Demand Response & Advanced Metering, staffPower Shortages: Demand Response and its Applications in Air

Han, Junqiao; Piette, Mary Ann

2008-01-01T23:59:59.000Z

58

Part of the Climate Change Problem . . . and the Solution? Chinese-Made Wind Power Technology and Opportunities for Dissemination  

E-Print Network (OSTI)

Wind energy development in China: institutional dynamics and policyCandles: Wind Powerin China. EnergyPolicy28,271?

Lewis, Joanna I.

2005-01-01T23:59:59.000Z

59

Part of the Climate Change Problem . . . and the Solution? Chinese-Made Wind Power Technology and Opportunities for Dissemination  

E-Print Network (OSTI)

Wind Energy Association estimated that transport costswind power a more cost?effective option for countries around the worldlookingtoleapfrogtocleanerenergy

Lewis, Joanna I.

2005-01-01T23:59:59.000Z

60

Abundance Analysis of Planetary Host Stars I. Differential Iron Abundances  

E-Print Network (OSTI)

We present atmospheric parameters and iron abundances derived from high-resolution spectra for three samples of dwarf stars: stars which are known to host close-in giant planets (CGP), stars for which radial velocity data exclude the presence of a close-in giant planetary companion (no-CGP), as well as a random sample of dwarfs with a spectral type and magnitude distribution similar to that of the planetary host stars (control). All stars have been observed with the same instrument and have been analyzed using the same model atmospheres, atomic data and equivalent width modeling program. Abundances have been derived differentially to the Sun, using a solar spectrum obtained with Callisto as the reflector with the same instrumentation. We find that the iron abundances of CGP dwarfs are on average by 0.22 dex greater than that of no-CGP dwarfs. The iron abundance distributions of both the CGP and no-CGP dwarfs are different than that of the control dwarfs, while the combined iron abundances have a distribution which is very similar to that of the control dwarfs. All four samples (CGP, no-CGP, combined, control) have different effective temperature distributions. We show that metal enrichment occurs only for CGP dwarfs with temperatures just below solar and approximately 300 K higher than solar, whereas the abundance difference is insignificant at Teff around 6000 K.

U. Heiter; R. E. Luck

2003-07-16T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" 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

A Simple Explanation for Taxon Abundance Patterns  

E-Print Network (OSTI)

For taxonomic levels higher than species, the abundance distributions of number of subtaxa per taxon tend to approximate power laws, but often show strong deviationns from such a law. Previously, these deviations were attributed to finite-time effects in a continuous time branching process at the generic level. Instead, we describe here a simple discrete branching process which generates the observed distributions and find that the distribution's deviation from power-law form is not caused by disequilibration, but rather that it is time-independent and determined by the evolutionary properties of the taxa of interest. Our model predicts-with no free parameters-the rank-frequency distribution of number of families in fossil marine animal orders obtained from the fossil record. We find that near power-law distributions are statistically almost inevitable for taxa higher than species. The branching model also sheds light on species abundance patterns, as well as on links between evolutionary processes, self-orga...

Chu, J; Chu, Johan; Adami, Christoph

1999-01-01T23:59:59.000Z

62

Abstract--The trend in today's development of power system monitoring, control and protection solutions is to  

E-Print Network (OSTI)

solutions is to install more Intelligent Electronic Devices (IEDs) in substations. As a result, variety of data is collected in substations today and much more will be collected in the future. This will change Terminal Units (RTUs) to collect substation data. This paper presents future developments that will lead

Kezunovic, Mladen

63

Hybrid Electric Vehicle Power Management Solutions Based on Isolated and Non-Isolated Configurations of MMCCC Converter  

Science Conference Proceedings (OSTI)

This paper presents the various configurations of a multilevel modular capacitor-clamped converter (MMCCC), and it reveals many useful and new formations of the original MMCCC for transferring power in either an isolated or nonisolated manner. The various features of the original MMCCC circuit are best suited for a multibus system in future plug-in hybrid or fuel-cell-powered vehicles' drive train. The original MMCCC is capable of bidirectional power transfer using multilevel modular structure with capacitor-clamped topology. It has a nonisolated structure, and it offers very high efficiency even at partial loads. This circuit was modified to integrate single or multiple high-frequency transformers by using the intermediate voltage nodes of the converter. On the other hand, a special formation of the MMCCC can exhibit dc outputs offering limited isolation without using any isolation transformer. This modified version can produce a high conversion ratio from a limited number of components and has several useful applications in providing power to multiple low-voltage loads in a hybrid or electric automobile. This paper will investigate the origin of generating ac outputs from the MMCCC and shows how the transformer-free version can be modified to create limited isolation from the circuit. In addition, this paper will compare various modified forms of the MMCCC topology with existing dc-dc converter circuits from compactness and component utilization perspectives.

Khan, Faisal H [ORNL; Tolbert, Leon M [ORNL; Webb, William E [Oak Ridge National Laboratory (ORNL)

2009-01-01T23:59:59.000Z

64

THE SOLAR FLARE IRON ABUNDANCE  

SciTech Connect

The abundance of iron is measured from emission line complexes at 6.65 keV (Fe line) and 8 keV (Fe/Ni line) in RHESSI X-ray spectra during solar flares. Spectra during long-duration flares with steady declines were selected, with an isothermal assumption and improved data analysis methods over previous work. Two spectral fitting models give comparable results, viz., an iron abundance that is lower than previous coronal values but higher than photospheric values. In the preferred method, the estimated Fe abundance is A(Fe) = 7.91 {+-} 0.10 (on a logarithmic scale, with A(H) = 12) or 2.6 {+-} 0.6 times the photospheric Fe abundance. Our estimate is based on a detailed analysis of 1898 spectra taken during 20 flares. No variation from flare to flare is indicated. This argues for a fractionation mechanism similar to quiet-Sun plasma. The new value of A(Fe) has important implications for radiation loss curves, which are estimated.

Phillips, K. J. H. [Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking RH6 5NT (United Kingdom); Dennis, B. R., E-mail: kjhp@mssl.ucl.ac.uk, E-mail: Brian.R.Dennis@nasa.gov [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

2012-03-20T23:59:59.000Z

65

Abundant Biofuels | Open Energy Information  

Open Energy Info (EERE)

Biofuels Biofuels Jump to: navigation, search Name Abundant Biofuels Place Monterey, California Sector Biofuels Product Abundant Biofuels plans to develop biodiesel feedstock plantations, refineries, and distribution channels in one or more Caribbean, Central American, or South American countries. Coordinates 38.413256°, -79.582974° 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":38.413256,"lon":-79.582974,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

66

Solar Power  

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

Solar Power Solar Power Project Opportunities Abound in the Region The WIPP site is receives abundant solar energy with 6-7 kWh/sq meter power production potential As the accompanying map of New Mexico shows, the WIPP site enjoys abundant year-round sunshine. With an average solar power production potential of 6-7 kWh/sq meter per day, one exciting project being studied for location at WIPP is a 30-50 MW Solar Power Tower: The American Solar Energy Society (ASES) is is a national trade association promoting solar energy as a clean source of electricity, and provides a comprehensive resource for additional information. DOE's Office of Energy Efficiency and Renewable Energy is also a comprehensive resource for more information on renewable energy.

67

Ultracoatings: Enabling Energy and Power Solutions in High Contact Stress Environments through next-generation Nanocoatings Final Technical Report  

DOE Green Energy (OSTI)

A review of current commercially available, industrial-grade, low friction coatings will show that interfacial contact pressures nearing 1GPa ({approx}150ksi) inherently limit surface engineering solutions like WC, TiN, TiAlN, and so forth. Extremely hard coatings, then, are often pursued as the principle path, although they too are not without significant limitations. A majority of these compounds are inherently brittle in nature or may not pair well with their mating substrate. In either case, their durability in high contact stress environments is compromised. In parallel to thin film coatings, many conventional surface treatments do not yield an interface hard enough to withstand extreme stresses under load. New research into advanced, nanocomposite materials like (Ti, Zr)B2 shows great promise. Bulk compacts of this compound have demonstrated an order of magnitude better wear resistance than current offerings, notably materials like tungsten carbide. At a laboratory level, the (Ti,Zr)B2 nanocomposite material exhibited abrasive and erosive wear resistance nearly ten times better than existing mixed-phase boride systems. In ASTM abrasion and erosion testing, these new compositions exhibit wear resistance superior to other known advanced materials such as RocTec 500 and 'Borazon' cubic boron nitride. Many significant challenges exist for mass production of (Ti, Zr)B2, one of which is the necessary processing technology that is capable of minimizing deleterious impurity phases. Secondly, this material's performance is derived from a synergistic effect of the two materials existing as a single phase structure. While the individual constituents of TiB2 and ZrB2 do yield improvements to wear resistance, their singular effects are not as significant. Lastly, deposition of this material on a commercial level requires thorough knowledge of nanocomposite boride solids; the benefits associated with these innovative new materials are just being realized. Advancing this technology, called Ultracoatings, through initial development, scale up, and commercialization to a variety of markets would represent a transformative leap to surface engineering. Several application spaces were considered for immediate implementation of the Ultracoatings technology, including, but not limited to, a drive shaft for an aerospace fuel pump, engine timing components, and dry solids pump hardware for an innovative coal gasifier. The primary focus of the program was to evaluate and screen the performance of the selected (Ti, Zr)B2 Ultracoatings composition for future development. This process included synthesis of the material for physical vapor deposition, sputtering trials and coating characterization, friction and wear testing on sample coupons, and functional hardware testing. The main project deliverables used to gage the project's adherence to its original objective were: Development of a coating/substrate pairing that exhibits wear rate of 0.1 mg/hour or lower at a 1GPa contact pressure, while achieving a maximum coating cost of $0.10/cm2. Demonstrate the aforementioned wear rate in both lubricated and starved lubrication conditions. Although the (Ti, Zr) B2 coating was not tailored for low friction performance, friction and wear evaluations of the material demonstrated a coefficient of sliding friction as low as 0.09. This suggests that varying the percentage of TiB2 present in the composite could enhance the materials performance in water-based lubricants. In the aerospace drive shaft application, functional hardware coated with (Ti, Zr)B2 survived a variety of abuse and long-range durability tests, with contact pressures exceeding 2 GPa. For engine timing components, further work is planned to evaluate the Ultracoatings technology in direct injection and diesel engine conditions. In the final identified application space the dry solids pump hardware, discussions continue on the application of the Ultracoatings technology for those specific components. Full implementation of the technology into the targeted markets equates to a U.S.-based en

Clifton B. Higdon III

2012-03-20T23:59:59.000Z

68

Analytical and Numerical Solutions for the Case of a Horizontal Well with a Radial Power-Law Permeability Distribution--Comparison to the Multi-Fracture Horizontal Case  

E-Print Network (OSTI)

In this work, I present the development of analytical solutions in the Laplace domain for a fully-penetrating, horizontal well producing at a constant flow rate or constant wellbore pressure in the center of a composite, cylindrical reservoir system with an impermeable outer boundary. The composite reservoir consists of two regions. The cylindrical region closest to the wellbore is stimulated, and the permeability within this region follows a power-law function of the radial distance from the wellbore. The unstimulated outer region has homogeneous reservoir properties. The current norm for successful stimulation of low permeability reservoir rocks is multi-stage hydraulic fracturing. The process of hydraulic fracturing creates thin, high permeability fractures that propagate deep into the reservoir, increasing the area of the rock matrix that is exposed to this low-resistance flow pathway. The large surface area of the high conductivity fracture is what makes hydraulic fracturing so successful. Unfortunately, hydraulic fracturing is often encumbered by problems such as high capital costs and a need for large volumes of water. Therefore, I investigate a new stimulation concept based upon the alteration of the permeability of a large volume around the producing well assembly from its original regime to that following a power-law function. I evaluate the effectiveness of the new concept by comparing it to conventional multi-stage hydraulic fracturing. The results of this investigation show that the power-law permeability reservoir (PPR) has a performance advantage over the multi-fractured horizontal treatment (MFH) only when the fracture conductivity and fracture half-length are small. Most importantly, the results demonstrate that the PPR can provide respectable flow rates and recovery factors, thus making it a viable stimulation concept for ultra-low permeability reservoirs, especially under conditions that may not be conducive to a conventional MHF treatment.

Broussard, Ryan Sawyer

2013-05-01T23:59:59.000Z

69

Accelerating Solutions  

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

Solutions From vehicles on the road to the energy that powers them, Oak Ridge National Laboratory innovations are advancing American transportation. Oak Ridge National Laboratory is making an impact on everyday America by enhancing transportation choices and quality of life. Through strong collaborative partnerships with industry, ORNL research and development efforts are helping accelerate the deployment of a new generation of energy efficient vehicles powered by domestic, renewable, clean energy. EPA ultra-low sulfur diesel fuel rule ORNL and the National Renewable Energy Laboratory co-led a comprehensive research and test program to determine the effects of diesel fuel sulfur on emissions and emission control (catalyst) technology. In the course of this program, involving

70

use of the Nation's abundant fossil resources. The FY 2010 budget  

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

use of the Nation's abundant fossil resources. The FY 2010 budget request for FE's Fuels and Power Systems Program is 403.9 million; among other initiatives, efforts entail the...

71

Solar Project Solutions | Open Energy Information  

Open Energy Info (EERE)

Solar Project Solutions Jump to: navigation, search Name Solar Project Solutions Place California Sector Solar Product US-based JV to build solar-power plants in California....

72

Glossary Term - 10 Most Abundant Elements in the Earth's Crust  

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

the Earth's Crust Previous Term (10 Most Abundant Compounds in the Earth's Crust) Glossary Main Index Next Term (10 Most Abundant Elements in the Universe) 10 Most Abundant...

73

Suntech Energy Solutions Formerly EI Solutions | Open Energy...  

Open Energy Info (EERE)

(Formerly EI Solutions) Place Pasadena, California Zip 91103 Sector Solar Product A California-based solar power systems integrator and installer. References Suntech Energy...

74

The abundance of cetaceans in California waters.  

E-Print Network (OSTI)

The abundance of cetaceans in California waters. Part II: Aerial surveys in winter and spring abundance estimates were calculated aftercompletionofthefirst aerial survey in 1991 (Forney and Barlow, 1993 aerial surveys. Survey methods The methods used during the 1991- 92 aerial surveys are described

75

Energy efficiency vs. performance of the numerical solution of PDEs: An application study on a low-power ARM-based cluster  

Science Conference Proceedings (OSTI)

Power consumption and energy efficiency are becoming critical aspects in the design and operation of large scale HPC facilities, and it is unanimously recognised that future exascale supercomputers will be strongly constrained by their power requirements. ... Keywords: ARM processors, Energy efficiency, Finite elements, High performance computing, Lattice-Boltzmann, Low-power processors, Multigrid, Parallel scalability, Wave propagation

Dominik GDdeke; Dimitri Komatitsch; Markus Geveler; Dirk Ribbrock; Nikola Rajovic; Nikola Puzovic; Alex Ramirez

2013-03-01T23:59:59.000Z

76

Energy harvesting: A battle against power losses  

E-Print Network (OSTI)

Is it possible, are indefinite operational life and wireless power grids possible? Maybe not for every application, but how about for micro-scale devices? The fact is in situ energy sources like MEMS vibrational and thermoelectric generators can potentially achieve these goals for small footprint systemin-package (SiP) solutions like bio-implantable devices and wireless sensor transceiver network nodes. The key objective is to scavenge sufficient energy from the environment to sustain the micro-power system indefinitely, or at least extend life to practical levels. The problem, however, is micro-scale harvesters can only generate low-to-moderate power, and the energy-storage and power-delivery processes of the system inherently consume a portion of that, which is why the various functions of a loading application must be power-moded, that is, multiplexed, duty-cycled, and turned off when not needed. Fortunately, low frequency ambient vibrations are relatively abundant, stable, and predictable, and tuned MEMS- and CMOS-compatible electrostatic harvesters, for instance, can generate moderate power levels [1], but only if they prevail over the power losses associated with energy storage and power delivery. The focus of this article is to therefore identify, quantify, and discuss the power-consuming mechanisms present in a harvester circuit. Harvesting energy

A. Rinc; Oacute N-mora; Senior Member; Erick O. Torres; Student Member; Ieee Georgia

2006-01-01T23:59:59.000Z

77

Age and mass of solar twins constrained by lithium abundance  

E-Print Network (OSTI)

Aims. We analyze the non-standard mixing history of the solar twins HIP 55459, HIP 79672, HIP 56948, HIP 73815 and HIP 100963, in order to determine as precisely as possible their mass and age. Methods. We computed a grid of evolutionary models with non-standard mixing at given metallicities with the Toulouse-Geneva code for a range of stellar masses assuming an error bar of +- 50K in Teff. We choose the evolutionary model that best fit the observed low lithium abundances observed in the solar twins. Results. Our best model for each solar twin provides a mass and age solution constrained by their Li content and Teff determination. HIP 56948 is the best solar twin at the present time and our analysis gives a mass of 0.994 +- 0.004 Msun and an age of 4.71 +- 1.39 Gyr. Conclusions. Non-standard mixing is required to explain the low Li abundances observed in solar-twins. Li depletion due to the additional mixing in solar-twins is strongly mass dependent. An accurate lithium abundance measurement connected with no...

Nascimento, J D do; Melendez, J; Bazot, M; Thado, S; de Mello, G F Porto; De Medeiros, J R

2009-01-01T23:59:59.000Z

78

Coronal Abundances in Orion Nebula Cluster Stars  

E-Print Network (OSTI)

Following the Chandra Orion Ultradeep Project (COUP) observation, we have studied the chemical composition of the hot plasma in a sample of 146 X-ray bright pre-main sequence stars in the Orion Nebula Cluster. We report measurements of individual element abundances for a subsample of 86 slightly-absorbed and bright X-ray sources, using low resolution X-ray spectra obtained from the Chandra ACIS instrument. The X-ray emission originates from a plasma with temperatures and elemental abundances very similar to those of active coronae in older stars. A clear pattern of abundances vs. First Ionization Potential (FIP) is evident if solar photospheric abundances are assumed as reference. The results are validated by extensive simulations. The observed abundance distributions are compatible with a single pattern of abundances for all stars, although a weak dependence on flare loop size may be present. The abundance of calcium is the only one which appears to vary substantially between stars, but this quantity is affected by relatively large uncertainties. The ensemble properties of the X-ray bright COUP sources confirm that the iron in the emitting plasma is underabundant with respect to both the solar composition and to the average stellar photospheric values. Comparison of the present plasma abundances with those of the stellar photospheres and those of the gaseous component of the nebula, indicates a good agreement for all the other elements with available measurements, and in particular for the high-FIP elements (Ne, Ar, O, and S) and for the low-FIP element Si. We conclude that there is evidence of a significant chemical fractionation effect only for iron, which appears to be depleted by a factor 1.5--3 with respect to the stellar composition.

A. Maggio; E. Flaccomio; F. Favata; G. Micela; S. Sciortino; E. D. Feigelson; K. V. Getman

2007-03-16T23:59:59.000Z

79

IKOR Power | Open Energy Information  

Open Energy Info (EERE)

search Name IKOR Power Place Fort Collins, Colorado Zip 80525 Product Colorado-based, technology-driven supplier of power delivery solutions for original equipment...

80

Glossary Term - 10 Most Abundant Compounds in the Earth's Crust  

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

Vanadis Previous Term (Vanadis) Glossary Main Index Next Term (10 Most Abundant Elements in the Earth's Crust) 10 Most Abundant Elements
in the Earth's Crust 10 Most Abundant...

Note: This page contains sample records for the topic "abundant power solutions" 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

Solar-powered saline sorbent-solution heat pump/storage system. [Coastal Energy Laboratory-Chemical Heat Pump (CEL-CHEAP)  

SciTech Connect

Coastal Energy Laboratory Chemical Heat Pump (CEL-CHEAP) is a redesigned open-cycle liquid desiccant air conditioner. Heat is discharged to shallow-well water by dehumidification-humidification for cooling and extracted by humidification-dehumidification for heating. Direct solar radiation concentrates the desiccant. For continuous operation, a small uninsulated tank stores concentrated solution. 6 refs.

Robison, H.; Houston, S.

1981-01-01T23:59:59.000Z

82

Regular Solutions  

Science Conference Proceedings (OSTI)

...The structure of a binary solid solution is shown schematically in Fig. 13. Three types of interatomic bonds

83

Unprecedented accurate abundances: signatures of other Earths?  

E-Print Network (OSTI)

For more than 140 years the chemical composition of our Sun has been considered typical of solar-type stars. Our highly differential elemental abundance analysis of unprecedented accuracy (~0.01 dex) of the Sun relative to solar twins, shows that the Sun has a peculiar chemical composition with a ~20% depletion of refractory elements relative to the volatile elements in comparison with solar twins. The abundance differences correlate strongly with the condensation temperatures of the elements. A similar study of solar analogs from planet surveys shows that this peculiarity also holds in comparisons with solar analogs known to have close-in giant planets while the majority of solar analogs without detected giant planets show the solar abundance pattern. The peculiarities in the solar chemical composition can be explained as signatures of the formation of terrestrial planets like our own Earth.

Melendez, J; Gustafsson, B; Yong, D; Ramrez, I

2009-01-01T23:59:59.000Z

84

Glossary Term - 10 Most Abundant Elements in the Universe  

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

Earth's Crust Previous Term (10 Most Abundant Elements in the Earth's Crust) Glossary Main Index Next Term (Alpha Decay) Alpha Decay 10 Most Abundant Elements in the Universe...

85

Chemical Abundances in SFG and DLA  

E-Print Network (OSTI)

We investigate the chemical abundances of local star-forming galaxies which cause Damped Lyman Alpha lines. A metallicity versus redshift diagram is constructed, on which the chemical abundances of low-redshift star-forming galaxy populations are compared with those of high-redshift Damped Lyman Alpha systems. We disucss two types of experiments on individual star-forming galaxies. In the first, the Damped Lyman Alpha line is created against an internal ultraviolet light source generated by a star-forming cluster or a supernova explosion. In the second, the Damped Lyman Alpha line is seen against a background Quasar. The metallicities measured from ionized gas in the star-forming regions, and neutral gas in the Damped Lyman Alpha systems, are compared with one another on a case-by-case basis. We highlight the occurrence of the star-forming galaxy/Quasar pair SBS 1543+593/HS 1543+5921, where the emission- and absorption-line derived abundances give the same result. We argue that we therefore can in principle, interpret Damped Lyman Alpha system metallicities as an extension of star-forming galaxy metallicities to higher redshifts, supporting that gas-rich galaxies had lower chemical abundances when the were younger.

Regina E. Schulte-Ladbeck; Brigitte Knig; Brian Cherinka

2005-04-18T23:59:59.000Z

86

Internal Rotation, Mixing and Lithium Abundances  

E-Print Network (OSTI)

Lithium is an excellent tracer of mixing in stars as it is destroyed (by nuclear reactions) at a temperature around $\\sim 2.5\\times 10^6$ K. The lithium destruction zone is typically located in the radiative region of a star. If the radiative regions are stable, the observed surface value of lithium should remain constant with time. However, comparison of the meteoritic and photospheric Li abundances in the Sun indicate that the surface abundance of Li in the Sun has been depleted by more than two orders of magnitude. This is not predicted by solar models and is a long standing problem. Observations of Li in open clusters indicate that Li depletion is occurring on the main sequence. Furthermore, there is now compelling observational evidence that a spread of lithium abundances is present in nearly identical stars. This suggests that some transport process is occurring in stellar radiative regions. Helioseismic inversions support this conclusion, for they suggest that standard solar models need to be modified below the base of the convection zone. There are a number of possible theoretical explanations for this transport process. The relation between Li abundances, rotation rates and the presence of a tidally locked companion along with the observed internal rotation in the Sun indicate that the mixing is most likely induced by rotation. The current status of non-standard (particularly rotational) stellar models which attempt to account for the lithium observations are reviewed.

Brian Chaboyer

1998-03-10T23:59:59.000Z

87

Experimental Limit to Interstellar 244 Pu Abundance  

E-Print Network (OSTI)

Short-lived nuclides, now extinct in the solar system, are expected to be present in interstellar matter (ISM). Grains of ISM origin were recently discovered in the inner solar system and at Earth orbit and may accrete onto Earth after ablation in the atmosphere. A favorable matrix for detection of such extraterrestrial material is presented by deep-sea sediments with very low sedimentation rates (0.83 mm/kyr). We report here on the measurement of Pu isotopic abundances in a 1-kg deep-sea dry sediment collected in 1992 in the North Pacific. Our estimate of (3 3) 105 244Pu atoms in the Pu-separated fraction of the sample shows no excess over the expected stratospheric nuclear fallout content and under reasonable assumptions sets a limit of 0.2 244 Pu atoms/cm 2 yr for extra-terrestrial deposition. Using available data on ISM steady-state flux on Earth, we derive a limit of 2 10?11 g-244Pu/g-ISM for the abundance of 244Pu in ISM. Subject headings: Nuclear reactions, nucleosynthesis, abundances ISM: abundancesinstrumentation: spectrographsmethods: laboratory

M. Paul; A. Valenta; I. Ahmad; D. Berkovits; C. Bordeanu; S. Ghelberg; A. Hershkowitz; S. Jiang; T. Nakanishi; K. Sakamoto

2001-01-01T23:59:59.000Z

88

The abundance of cetaceans in California waters.  

E-Print Network (OSTI)

on cetacean populations with- out knowing population sizes. Co- ordinated ship and aerial surveys were and 1992. Results from the ship survey are reported here; population estimates from the aerial surveysThe abundance of cetaceans in California waters. Part I: Ship surveys in summer and fall of 1991

89

Electromarking solution  

DOE Patents (OSTI)

This invention is directed to an aqueous halogen-free electromarking solution which possesses the capacity for marking a broad spectrum of metals and alloys selected from different classes. The aqueous solution comprises basically the nitrate salt of an amphoteric metal, a chelating agent, and a corrosion-inhibiting agent.

Bullock, Jonathan S. (Oak Ridge, TN); Harper, William L. (Wartburg, TN); Peck, Charles G. (Oak Ridge, TN)

1976-06-22T23:59:59.000Z

90

Sulfur, Chlorine, & Argon Abundances in Planetary Nebulae. IIB: Abundances in a Southern Sample  

E-Print Network (OSTI)

We have undertaken a large spectroscopic survey of over 80 planetary nebulae with the goal of providing a homogeneous spectroscopic database between 3600-9600 Angstroms, as well as a set of consistently determined abundances, especially for oxygen, sulfur, chlorine, and argon. In the current paper we calculate and report the S/O, Cl/O, and Ar/O abundance ratios for 45 southern planetary nebulae (predominantly Type II), using our own recently observed line strengths published in an earlier paper. One of the salient features of our work is the use of the NIR lines of [S III] 9069,9532 coupled with the [S III] temperature, to determine the S++ ionic abundance. We find the following average abundances for these objects: S/O=0.011(+/-0.0064), Cl/O=0.00031(+/-0.00012), and Ar/O=0.0051(+/-0.0020).

J. B. Milingo; R. B. C. Henry; K. B. Kwitter

2001-09-10T23:59:59.000Z

91

Experimental Limit to Interstellar 244Pu Abundance  

E-Print Network (OSTI)

Short-lived nuclides, now extinct in the solar system, are expected to be present in the interstellar medium (ISM). Grains of ISM origin were recently discovered in the inner solar system and at Earth orbit and may accrete onto Earth after ablation in the atmosphere. A favorable matrix for detection of such extraterrestrial material is presented by deep open-sea sediments with very low sedimentation rates (0.8-3 mm/kyr). We report here on the measurement of Pu isotopic abundances in a 1-kg deep-sea dry sediment collected in 1992 in the North Pacific. Our measured value of (3+-3)x10^5 244Pu atoms in the Pu-separated fraction of the sample shows no excess over the expected stratospheric nuclear fallout content and under reasonable assumptions we derive a limit of 2x10^-11 g-244Pu/g-ISM for the abundance of 244Pu in ISM.

Paul, M; Ahmad, I; Berkovits, D; Bordeanu, C; Ghelberg, S; Hashimoto, Y; Hershcovitch, A I; Jiang, S; Nakanishi, T; Sakamoto, K

2001-01-01T23:59:59.000Z

92

Experimental Limit to Interstellar 244Pu Abundance  

E-Print Network (OSTI)

Short-lived nuclides, now extinct in the solar system, are expected to be present in the interstellar medium (ISM). Grains of ISM origin were recently discovered in the inner solar system and at Earth orbit and may accrete onto Earth after ablation in the atmosphere. A favorable matrix for detection of such extraterrestrial material is presented by deep open-sea sediments with very low sedimentation rates (0.8-3 mm/kyr). We report here on the measurement of Pu isotopic abundances in a 1-kg deep-sea dry sediment collected in 1992 in the North Pacific. Our measured value of (3+-3)x10^5 244Pu atoms in the Pu-separated fraction of the sample shows no excess over the expected stratospheric nuclear fallout content and under reasonable assumptions we derive a limit of 2x10^-11 g-244Pu/g-ISM for the abundance of 244Pu in ISM.

M. Paul; A. Valenta; I. Ahmad; D. Berkovits; C. Bordeanu; S. Ghelberg; Y. Hashimoto; A. Hershkowitz; S. Jiang; T. Nakanishi; K. Sakamoto

2001-06-12T23:59:59.000Z

93

Abundance analysis of planetary host stars  

E-Print Network (OSTI)

We present atmospheric parameters and Fe abundances derived for the majority of dwarf stars (north of -30 degrees declination) which are up to now known to host extrasolar planets. High-resolution spectra have been obtained with the Sandiford Echelle spectrograph on the 2.1m telescope at the University of Texas McDonald Observatory. We have used the same model atmospheres, atomic data and equivalent width modeling program for the analysis of all stars. Abundances have been derived differentially to the Sun, using a solar spectrum obtained with Callisto as the reflector with the same instrumentation. A similar analysis has been performed for a sample of stars for which radial velocity data exclude the presence of a close-in giant planetary companion. The results are compared to the recent studies found in the literature.

U. Heiter; R. E. Luck

2002-09-27T23:59:59.000Z

94

Dynamic power management in environmentally powered systems  

Science Conference Proceedings (OSTI)

In this paper a framework for energy management in energy harvesting embedded systems is presented. As a possible example scenario, we focus on wireless sensor nodes which are powered by solar cells. We demonstrate that classical power management solutions ... Keywords: embedded systems, energy harvesting, model predictive control, power management, real-time scheduling, reward maximization

Clemens Moser; Jian-Jia Chen; Lothar Thiele

2010-01-01T23:59:59.000Z

95

$^7$Li Abundances in Halo Stars: Testing Stellar Evolution Models and the Primordial $^7$Li Abundance  

E-Print Network (OSTI)

A large number of stellar evolution models with [Fe/H] = -2.3 and -3.3 have been calculated in order to determine the primordial $^7$Li abundance and to test current stellar evolution models by a comparison to the extensive database of Li abundances in extremely metal poor halo stars observed by Thorburn (1994). Standard models do a good job of fitting the observed Li abundances in stars hotter than 5600 K. They predict a primordial $^7$Li abundance of Log N(Li) = 2.24\\pm 0.03$. Models which include microscopic diffusion predict a downward curvature in the $^7$Li destruction isochrones at hot temperatures which is not present in the observations. Thus, the observations clearly rule out models which include uninhibited microscopic diffusion of $^7$Li from the surface of the star. The [Fe/H] = -2.3 stellar models which include both diffusion and rotational mixing provide an excellent match to the observations. Both the plateau stars and the heavily depleted cool stars are well fit by these models. The rotational mixing leads to considerable $^7$Li depletion in these models and the primordial $^7$Li abundance inferred from these models is Log N(Li) = $3.08\\pm 0.1$.

Brian Chaboyer; P. Demarque

1994-03-21T23:59:59.000Z

96

Cosmological implications of light element abundances: Theory  

DOE Green Energy (OSTI)

Primordial nucleosynthesis provides (with the microwave background radiation) one of the two quantitative experimental tests of the hot Big Bang cosmological model (versus alternative explanations for the observed Hubble expansion). The standard homogeneous-isotopic calculation fits the light element abundances ranging from [sup 1]H at 76% and [sup 4]He at 24% by mass through [sup 2]H and [sup 3]He at parts in 10[sup 5] down to [sup 7]Li at parts in 10[sup 10]. It is also noted how the recent Large Electron Positron Collider (and Stanford Linear Collider) results on the number of neutrinos (N[sub [nu

Schramm, D.N. (Univ. of Chicago, IL (United States) Fermi National Accelerator Lab., Batavia, IL (United States))

1993-06-01T23:59:59.000Z

97

Lithium abundances in exoplanet-hosts stars  

E-Print Network (OSTI)

Exoplanet-host stars (EHS) are known to present surface chemical abundances different from those of stars without any detected planet (NEHS). EHS are, on the average, overmetallic compared to the Sun. The observations also show that, for cool stars, lithium is more depleted in EHS than in NEHS. The overmetallicity of EHS may be studied in the framework of two different scenarii. We have computed main sequence stellar models with various masses, metallicities and accretion rates. The results show different profiles for the lithium destruction according to the scenario. We compare these results to the spectroscopic observations of lithium.

M. Castro; S. Vauclair; O. Richard; N. C. Santos

2008-03-20T23:59:59.000Z

98

State and Local Solution Center: Financing Solutions  

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

Technical Assistance Technical Assistance Resources Printable Version Share this resource Send a link to State and Local Solution Center: Financing Solutions to someone by E-mail Share State and Local Solution Center: Financing Solutions on Facebook Tweet about State and Local Solution Center: Financing Solutions on Twitter Bookmark State and Local Solution Center: Financing Solutions on Google Bookmark State and Local Solution Center: Financing Solutions on Delicious Rank State and Local Solution Center: Financing Solutions on Digg Find More places to share State and Local Solution Center: Financing Solutions on AddThis.com... Strategic Energy Planning Energy Policies & Programs Financing Financing Overview Financing Program Market Segments Energy Data Management Energy Technologies

99

Randa Energy Solutions LLC R A Energy Solutions | Open Energy Information  

Open Energy Info (EERE)

Randa Energy Solutions LLC R A Energy Solutions Randa Energy Solutions LLC R A Energy Solutions Jump to: navigation, search Name Randa Energy Solutions, LLC (R&A Energy Solutions) Place North Ridgeville, Ohio Zip 44039 Product String representation "Ohio-based prov ... alue add power." is too long. References Randa Energy Solutions, LLC (R&A Energy Solutions)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Randa Energy Solutions, LLC (R&A Energy Solutions) is a company located in North Ridgeville, Ohio . References ↑ "[ Randa Energy Solutions, LLC (R&A Energy Solutions)]" Retrieved from "http://en.openei.org/w/index.php?title=Randa_Energy_Solutions_LLC_R_A_Energy_Solutions&oldid=350191

100

Abundant Renewable Energy ARE | Open Energy Information  

Open Energy Info (EERE)

ARE ARE Jump to: navigation, search Name Abundant Renewable Energy (ARE) Place Newberg, Oregon Zip 97132 Sector Solar, Wind energy Product Oregon-based provider of wind turbines, wind towers and dealers for wind turbines as well as solar passive heating systems. Coordinates 45.300325°, -122.975574° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.300325,"lon":-122.975574,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "abundant power solutions" 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

Power Electronics Symposium 2011 | ornl.gov  

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

expertise, technologies, and opportunities available through ORNL's Power Electronics and Electrical Power Systems Research Center (PEEPSRC) for creation of solutions to existing...

102

Controller Design of Power Quality-Improving Appliances  

SciTech Connect

This paper presents an innovative solution to power quality problems -- using power quality improving (PQI) appliances to reduce harmonic currents and improve the power factor in buildings.

Hammerstrom, Donald J.; Zhou, Ning; Lu, Ning

2007-01-01T23:59:59.000Z

103

Management Solution  

E-Print Network (OSTI)

MEMO: Request for proposal for Computer-Aided Facilities and Maintenance Management application software; professional services; development services for interfaces to Financial Management and Human Resources systems; configuration, test, train, maintenance and support services to implement and maintain a CAFM Solution for the California Administrative Office of the Courts, the Trial Courts, the Appellate Courts and the Judicial Council, known as The AOC Group. You are invited to review and respond to the attached Request for Proposal (RFP):

Rfp Number Isdcafm

2004-01-01T23:59:59.000Z

104

Research on Integrating of Wind Power and Power System | Department...  

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

More Documents & Publications Webinar Presentation: Energy Storage Solutions for Microgrids (November 2012) Impacts of Long-term Drought on Power Systems in the U.S. Southwest...

105

High Power Converters for Efficient Transmission Solutions  

Science Conference Proceedings (OSTI)

... Single Valve Double Valve Quadruple Valve ... Includes 14 x 250 MVA 1-phase converter ... Serves 80 x 5 MW offshore wind turbine generators ...

2013-03-01T23:59:59.000Z

106

Using government purchasing power to reduce equipment standby power  

E-Print Network (OSTI)

Solutions (EES). 2002. Standby-Power: Energy Demand andIEC). 2002 Measurement of Standby Power. Committee Draftwww.energyefficient.com.au/standby/reports-sb/59_297CD.pdf

Harris, Jeffrey; Meier, Alan; Bartholomew, Emily; Thomas, Alison; Glickman, Joan; Ware, Michelle

2003-01-01T23:59:59.000Z

107

Nuclear Power PROS -`No' greenhouse gas emissions  

E-Print Network (OSTI)

Nuclear Power PROS -`No' greenhouse gas emissions -Fuel is cheep -High energy density (1 ton U = 16 abundant elements found in natural crustal rocks) Nuclear Power CONS -High capital cost due to meeting if there is a movement towards electric cars? -What if the high capital costs of a nuclear power plant were invested

Toohey, Darin W.

108

New Solutions Require New Thinking  

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

Solutions Require Solutions Require New Thinking America's demand for power threatens to overburden an already congested electric system. The U.S. Department of Energy is addressing these energy challenges with innovative solutions to energy generation. Its Renewable and Distributed Systems Integration (RDSI) Program is helping to alleviate congestion, reduce greenhouse gas emissions, and improve reliability by investigating answers such as * Microgrid technologies * Distributed generation * Two-way communication systems * Demand response programs Reducing Peak Demand The RDSI program aims to reduce peak load on distribution feeders 20% by 2015. To help achieve this goal, RDSI is sponsoring demonstration projects nationwide. From California to New York, these projects are

109

Halo Star Abundances and r-Process Synthesis  

E-Print Network (OSTI)

We review recent observational studies of heavy element abundances in low metallicity stars and explore some implications of these results for nucleosynthesis and early Galactic chemical evolution.

J. W. Truran; J. J. Cowan; B. D. Fields

2001-01-24T23:59:59.000Z

110

Alloy solution hardening with solute pairs  

DOE Patents (OSTI)

Solution hardened alloys are formed by using at least two solutes which form associated solute pairs in the solvent metal lattice. Copper containing equal atomic percentages of aluminum and palladium is an example.

Mitchell, John W. (Charlottesville, VA)

1976-08-24T23:59:59.000Z

111

Nucleosynthesis: Stellar and Solar Abundances and Atomic Data  

E-Print Network (OSTI)

Abundance observations indicate the presence of often surprisingly large amounts of neutron capture (i.e., s- and r-process) elements in old Galactic halo and globular cluster stars. These observations provide insight into the nature of the earliest generations of stars in the Galaxy -- the progenitors of the halo stars -- responsible for neutron-capture synthesis. Comparisons of abundance trends can be used to understand the chemical evolution of the Galaxy and the nature of heavy element nucleosynthesis. In addition age determinations, based upon long-lived radioactive nuclei abundances, can now be obtained. These stellar abundance determinations depend critically upon atomic data. Improved laboratory transition probabilities have been recently obtained for a number of elements. These new gf values have been used to greatly refine the abundances of neutron-capture elemental abundances in the solar photosphere and in very metal-poor Galactic halo stars. The newly determined stellar abundances are surprisingly consistent with a (relative) Solar System r-process pattern, and are also consistent with abundance predictions expected from such neutron-capture nucleosynthesis.

John J. Cowan; James E. Lawler; Christopher Sneden; E. A. Den Hartog; Jason Collier

2006-05-04T23:59:59.000Z

112

INTRODUCTION Information on the abundance of large whales in Greenland  

E-Print Network (OSTI)

for abundance estimates from these surveys and no abundance estimates were calculated. After this, aerial when survey conditions are optimal in Greenlandic waters. Between 1983 and 1993, visual aerial surveys (Larsen, 1995). In 2002 and 2004, visual aerial photographic surveys were conducted (Witting and Kingsley

Laidre, Kristin L.

113

Sulfur, Chlorine, & Argon Abundances in Planetary Nebulae. I: Observations and Abundances in a Northern Sample  

E-Print Network (OSTI)

This paper is the first of a series specifically studying the abundances of sulfur, chlorine, and argon in Type II planetary nebulae (PNe) in the Galactic disk. Ratios of S/O, Cl/O, and Ar/O constitute important tests of differential nucleosynthesis of these elements and serve as strict constraints on massive star yield predictions. We present new ground-based optical spectra extending from 3600-9600 Angstroms for a sample of 19 Type II northern PNe. This range includes the strong near infrared lines of [S III] 9069,9532, which allows us to test extensively their effectiveness as sulfur abundance indicators. We also introduce a new, model-tested ionization correction factor for sulfur. For the present sample, we find average values of S/O=1.2E-2(+/- 0.71E-2), Cl/O=3.3E-4(+/- 1.6E-4), and Ar/O=5.0E-3(+/- 1.9E-3).

K. B. Kwitter; R. B. C. Henry

2001-06-12T23:59:59.000Z

114

DOE Selects Nine New University Coal Research Projects to Advance Coal-Based Power  

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

Selects Nine New University Coal Research Projects to Advance Coal-Based Power Selects Nine New University Coal Research Projects to Advance Coal-Based Power Systems Nine new projects selected by the U.S. Department of Energy (DOE) under the University Coal Research program will seek long-term solutions for the clean and efficient use of our nation's abundant coal resources. The announcement today of the selections marks the 34 th round of the Department's longest-running coal program, which began in 1979. This research continues DOE efforts to improve the understanding of the chemical and physical processes governing coal conversion and utilization, and support the technological development of the advanced coal power systems of the future. These advanced systems include ultra-clean

115

Statistical GPU power analysis using tree-based methods  

Science Conference Proceedings (OSTI)

Graphics Processing Units (GPUs) have emerged as a promising platform for parallel computation. With a large number of scalar processors and abundant memory bandwidth, GPUs provide substantial computation power. While delivering high computation performance, ... Keywords: GTX 280 GPU, statistical GPU power analysis, parallel computation, scalar processors, memory bandwidth, computation power, power supplies, cooling systems, power consumption requirement, high-level GPU power consumption model, tree-based random Statistical forest methods, GPU runtime power consumption, performance metrics, GPU simulator, CUDA kernels

Jianmin Chen; Bin Li; Ying Zhang; Lu Peng; Jih-kwon Peir

2011-07-01T23:59:59.000Z

116

THE SOLAR HEAVY ELEMENT ABUNDANCES. II. CONSTRAINTS FROM STELLAR ATMOSPHERES  

Science Conference Proceedings (OSTI)

Estimates of the bulk metal abundance of the Sun derived from the latest generation of model atmospheres are significantly lower than the earlier standard values. In Paper I, we demonstrated that helioseismic data combined with stellar interiors theory set strong bounds on the solar metal abundance. The seismically derived abundances are inconsistent with the low photospheric abundances if the quoted errors in the atmospheric models (of order 0.05 dex) are correct. In this paper, we undertake a critical analysis of the solar metallicity and its uncertainty from a model atmospheric perspective, focusing on CNO. We argue that the non-LTE (NLTE) corrections for abundances derived from atomic features are overestimated in the recent abundance studies, while systematic errors in the absolute abundances are underestimated. In general, abundances derived from molecular features are lower than those derived from atomic features for the three-dimensional hydro models, while a weaker trend in the opposite direction tends to hold for abundances derived from one-dimensional models. If we adopt the internal consistency between different indicators as a measure of goodness of fit, we obtain intermediate abundances [C/H] = 8.44 +- 0.06, [N/H] = 7.96 +- 0.10 and [O/H] = 8.75 +- 0.08. The errors reflect the fact that both the high and low scales are internally consistent within the errors, and they are too large to conclude that there is a solar abundance problem. However, the center-to-limb continuum flux variations predicted in the simulations appear to be inconsistent with solar data based on recently published work. This would favor the traditional thermal structure and lead to high CNO abundances of (8.52, 7.96, 8.80) close to the seismic scale. We argue that further empirical tests of NLTE corrections and the thermal structure are required for precise absolute abundances. The sensitivity of the simulations to spatial resolution and systematic errors in the underlying atmospheric physics should also be examined, and these effects may lead to an overestimate of the impact of convective overshooting on the thermal structure of the outer layers of the solar atmosphere. The uncertainties in the solar oxygen also imply that strong conclusions about the absence of solar beryllium depletion cannot be made.

Pinsonneault, M. H. [Department of Astronomy, Ohio State University, Columbus, OH 43210 (United States); Delahaye, Franck [CEA, IRFU, Serv. Astrophys., F-91191 Gif-sur-Yvette (France)

2009-10-20T23:59:59.000Z

117

Abundance trends in the thin and thick disks  

E-Print Network (OSTI)

The Milky Way harbours two disks that appear distinct concerning scale-heights, kinematics, and elemental abundance patterns. Recent years have seen a surge of studies of the elemental abundance trends in the disks using high resolution spectroscopy. Here I will review and discuss the currently available data. Special focus will also be put on how we define stars to be members of either disk, and how current models of galaxy formation favour that thick disks are formed from several accreted bodies. The ability for the stellar abundance trends to test such predictions are discussed.

Sofia Feltzing

2004-11-07T23:59:59.000Z

118

DC power transmission from the Leningradskaya Nuclear Power Plant to Vyborg  

SciTech Connect

DC power transmission from the Leningradskaya Nuclear Power Plant (LAES) to city of Vyborg is proposed. This will provide a comprehensive solution to several important problems in the development and control of the unified power system (EES) of Russia.

Koshcheev, L. A. [JSC 'NIIPT' (Russian Federation); Shul'ginov, N. G. [JSC 'SO EES' (Russian Federation)

2011-05-15T23:59:59.000Z

119

A New Earth-Abundant Semiconductor for Solar Energy Conversion  

Science Conference Proceedings (OSTI)

Presentation Title, G2, ZnSnN2: A New Earth-Abundant Semiconductor for Solar Energy Conversion. Author(s), Lise Lahourcade, Naomi C Coronel, Harry A...

120

Mechanical Properties of Lower-cost, Earth-abundant Chalcogenide ...  

Science Conference Proceedings (OSTI)

Presentation Title, Mechanical Properties of Lower-cost, Earth-abundant Chalcogenide Thermoelectric Materials, PbSe and PbS, with Additions of 0 to 4% CdS...

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121

NREL: Wind Research - Abundant Renewable Energy's ARE 442 Wind Turbine  

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

Abundant Renewable Energy's ARE 442 Wind Turbine Testing and Results Abundant Renewable Energy's ARE 442 Wind Turbine Testing and Results Get the Adobe Flash Player to see this video. A video of Abundant Renewable Energy's ARE 442 wind turbine. Text Version As part of the National Renewable Energy Laboratory and U.S. Department of Energy (NREL/DOE) Independent Testing project, NREL tested Abundant Renewable Energy's ARE 442 turbine at the National Wind Technology Center (NWTC). The ARE 442 is a 10-kilowatt (kW), three-bladed, horizontal-axis upwind small wind turbine. It has a hub height of 30.9 meters and a rotor diameter of 7.2 meters. The turbine has a single-phase permanent-magnet generator that operates at variable voltages up to 410 volts AC. Testing Summary The summary of the tests is below with the final reports.

122

SPATIAL VARIATIONS OF DUST ABUNDANCES ACROSS THE LARGE MAGELLANIC CLOUD  

SciTech Connect

Using the data obtained with the Spitzer Space Telescope as part of the Surveying the Agents of a Galaxy's Evolution (SAGE) legacy survey, we have studied the variations of the dust composition and abundance across the Large Magellanic Cloud (LMC). Such variations are expected, as the explosive events which have lead to the formation of the many H I shells observed should have affected the dust properties. Using a model and comparing with a reference spectral energy distribution from our Galaxy, we deduce the relative abundance variations of small dust grains across the LMC. We examined the infrared color ratios as well as the relative abundances of very small grains (VSGs) and polycyclic aromatic hydrocarbons (PAHs) relative to the big grain abundance. Results show that each dust component could have different origins or evolution in the interstellar medium (ISM). The VSG abundance traces the star formation activity and could result from shattering of larger grains, whereas the PAH abundance increases around molecular clouds as well as in the stellar bar, where they could have been injected into the ISM during mass loss from old stars.

Paradis, Deborah; Reach, William T. [Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125 (United States); Bernard, Jean-Philippe [Universite de Toulouse, UPS, CESR, 9 av. du Colonel Roche, F-31028 Toulouse cedex 9 (France); Block, Miwa; Engelbracht, Chad W.; Gordon, Karl [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Hora, Joseph L. [Harvard-Smithsonian Center for Astrophysics, 60 Garden St., MS-65, Cambridge, MA, 02138-1516 (United States); Indebetouw, Remy [7 National Radio Astronomy Observatory and Department of Astronomy, University of Virginia, P.O. Box 3818, Charlottesville, VA 22903-0818 (United States); Kawamura, Akiko [Nagoya University, Department of Astrophysics, Chikusa-Ku, Nagoya, 464-01 (Japan); Meade, Marilyn [Department of Astronomy, University of Wisconsin, Madison, 475 N. Charter St., Madison, WI 53706 (United States); Meixner, Margaret; Sewilo, Marta [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Vijh, Uma P. [Ritter Astrophysical Research Center, University of Toledo, Toledo, OH 43606 (United States); Volk, Kevin [Gemini Observatory, Northern Operations Center, 670 N. Aohuku Place, Hilo, HI 96720 (United States)

2009-07-15T23:59:59.000Z

123

THE SOLAR FLARE SULFUR ABUNDANCE FROM RESIK OBSERVATIONS  

SciTech Connect

The RESIK instrument on CORONAS-F spacecraft observed several sulfur X-ray lines in three of its four channels covering the wavelength range 3.8-6.1 A during solar flares. The fluxes are analyzed to give the sulfur abundance. Data are chosen for when the instrument parameters were optimized. The measured fluxes of the S XV 1s{sup 2}-1s4p (w4) line at 4.089 A gives A(S) = 7.16 {+-} 0.17 (abundances on a logarithmic scale with A(H) = 12) which we consider to be the most reliable. Estimates from other lines range from 7.13 to 7.24. The preferred S abundance estimate is very close to recent photospheric abundance estimates and to quiet-Sun solar wind and meteoritic abundances. This implies no fractionation of sulfur by processes tending to enhance the coronal abundance from the photospheric that depend on the first ionization potential (FIP), or that sulfur, though its FIP has an intermediate value of 10.36 eV, acts like a 'high-FIP' element.

Sylwester, J.; Sylwester, B. [Space Research Centre, Polish Academy of Sciences, 51-622, Kopernika 11, Wroclaw (Poland); Phillips, K. J. H. [Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT (United Kingdom); Kuznetsov, V. D., E-mail: js@cbk.pan.wroc.pl, E-mail: bs@cbk.pan.wroc.pl, E-mail: kjhp@mssl.ucl.ac.uk, E-mail: kvd@izmiran.ru [Institute of Terrestrial Magnetism and Radiowave Propagation (IZMIRAN), Troitsk, Moscow (Russian Federation)

2012-06-01T23:59:59.000Z

124

Carbon and Strontium Abundances of Metal-Poor Stars  

E-Print Network (OSTI)

We present carbon and strontium abundances for 100 metal-poor stars measured from R$\\sim $7000 spectra obtained with the Echellette Spectrograph and Imager at the Keck Observatory. Using spectral synthesis of the G-band region, we have derived carbon abundances for stars ranging from [Fe/H]$=-1.3$ to [Fe/H]$=-3.8$. The formal errors are $\\sim 0.2$ dex in [C/Fe]. The strontium abundance in these stars was measured using spectral synthesis of the resonance line at 4215 {\\AA}. Using these two abundance measurments along with the barium abundances from our previous study of these stars, we show it is possible to identify neutron-capture-rich stars with our spectra. We find, as in other studies, a large scatter in [C/Fe] below [Fe/H]$ = -2$. Of the stars with [Fe/H]$carbon-rich metal-poor stars. The Sr and Ba abundances show that three of the carbon-rich stars are neutron-capture-rich, while two have normal Ba and Sr. This fraction of carbon enhanced stars is consistent with other studies that include this metallicity range.

David K. Lai; Jennifer A. Johnson; Michael Bolte; Sara Lucatello

2007-06-20T23:59:59.000Z

125

DIRECT EVALUATION OF THE HELIUM ABUNDANCES IN OMEGA CENTAURI  

SciTech Connect

A direct measure of the helium abundances from the near-infrared transition of He I at 1.08 {mu}m is obtained for two nearly identical red giant stars in the globular cluster Omega Centauri. One star exhibits the He I line; the line is weak or absent in the other star. Detailed non-local thermal equilibrium semi-empirical models including expansion in spherical geometry are developed to match the chromospheric H{alpha}, H{beta}, and Ca II K lines, in order to predict the helium profile and derive a helium abundance. The red giant spectra suggest a helium abundance of Y {<=} 0.22 (LEID 54064) and Y = 0.39-0.44 (LEID 54084) corresponding to a difference in the abundance {Delta}Y {>=} 0.17. Helium is enhanced in the giant star (LEID 54084) that also contains enhanced aluminum and magnesium. This direct evaluation of the helium abundances gives observational support to the theoretical conjecture that multiple populations harbor enhanced helium in addition to light elements that are products of high-temperature hydrogen burning. We demonstrate that the 1.08 {mu}m He I line can yield a helium abundance in cool stars when constraints on the semi-empirical chromospheric model are provided by other spectroscopic features.

Dupree, A. K.; Avrett, E. H., E-mail: dupree@cfa.harvard.edu, E-mail: eavrett@cfa.harvard.edu [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States)

2013-08-20T23:59:59.000Z

126

Primordial Lithium Abundance in Catalyzed Big Bang Nucleosynthesis  

E-Print Network (OSTI)

There exists a well known problem with the Li7+Be7 abundance predicted by standard big bang nucleosynthesis being larger than the value observed in population II stars. The catalysis of big bang nucleosynthesis by metastable, \\tau_X \\ge 10^3 sec, charged particles X^- is capable of suppressing the primordial Li7+Be7, abundance and making it consistent with the observations. We show that to produce the correct abundance, this mechanism of suppression places a requirement on the initial abundance of X^- at temperatures of 4\\times 10^8 K to be on the order of or larger than 0.02 per baryon, which is within the natural range of abundances in models with metastable electroweak-scale particles. The suppression of Li7+Be7, is triggered by the formation of (Be7X^-), compound nuclei, with fast depletion of their abundances by catalyzed proton reactions, and in some models by direct capture of X^- on Be7. The combination of Li7+Be7 and Li6 constraints favours the window of lifetimes, 1000s \\la tau_X \\leq 2000 s.

Chris Bird; Kristen Koopmans; Maxim Pospelov

2007-03-08T23:59:59.000Z

127

K2 Energy Solutions formerly Peak Energy Solutions | Open Energy  

Open Energy Info (EERE)

Energy Solutions formerly Peak Energy Solutions Energy Solutions formerly Peak Energy Solutions Jump to: navigation, search Name K2 Energy Solutions (formerly Peak Energy Solutions) Place Henderson, Nevada Zip 89074 Product Nevada-based designer and fabricator of Lithium Iron Phosphate (LFP) batteries for such applications as EVs, power tools and larger-scale storage. Coordinates 38.83461°, -82.140509° 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":38.83461,"lon":-82.140509,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

128

PowerPoint Presentation  

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

6 Northern Power Systems, Inc 6 Northern Power Systems, Inc Northern Power Systems 182 Mad River Park Waitsfield, VT 05673 Ultracapacitor EnergyBridge(tm) UPS for Palmdale Water District DOE/ESS PEER Review November 3, 2006 11/03/2006 Northern Power Systems, Inc © 2006 2 Northern Power  Distributed Energy Systems Corp (NASDAQ:DESC)  Energy Solutions since 1974  Products, Systems and Services Divisions  Hundreds of Projects around the World  HQ and Manufacturing in Vermont  Regional offices in NY, TX, CA, England, and Mexico 11/03/2006 Northern Power Systems, Inc © 2006 3 Project Overview  CEC - California Energy Commission  Funding agency  Palmdale Water District  Award recipient, host site  Northern Power  Technology provider  Black & Veatch  Owner's engineer

129

From primordial $^4$He abundance to the Higgs field  

E-Print Network (OSTI)

We constrain the possible time variation of the Higgs vacuum expectation value ($v$) by recent results on the primordial $^4$He abundance ($Y_P$). For that, we improve the analytic models of the key-processes in our previous analytic calculation of the primordial $^4$He abundance. Furthermore, the latest results on the neutron decay, the baryon to photon ratio based on 5-year WMAP observations and a new dependence of the deuteron binding energy on $v$ are incorporated. Finally, we approximate the weak freeze-out, the cross section of photo-disintegration of the deuteron, the mean lifetime of the free neutron, the mass difference of neutron and proton, the Fermi coupling constant, the mass of the electron and the binding energy of the deuteron by terms of $v$, to constrain its possible time variation by recent results on the primordial $^4$He abundance: $|\\frac{\\Delta v}{v}| ~ \\leq 1.5 \\cdot 10^{-4}$.

Josef M. Ganer; Harald Lesch; Hartmuth Arenhvel

2008-06-10T23:59:59.000Z

130

Metaproteomics reveals abundant transposase expression in mutualistic endosymbionts  

Science Conference Proceedings (OSTI)

Transposases, enzymes that catalyze the movement of mobile genetic elements, are the most abundant genes in nature. While many bacteria encode an abundance of transposases in their genomes, the current paradigm is that transposase gene expression is tightly regulated and generally low due to its severe mutagenic effects. In the current study, we detected the highest number of transposase proteins ever reported in bacteria, in symbionts of the gutless marine worm Olavius algarvensis using metaproteomics. At least 26 different transposases from 12 different families were detected and genomic and proteomic analyses suggest many of these are active. This high expression of transposases indicates that the mechanisms for their tight regulation have been disabled or destroyed. Based on recent studies on other symbionts and pathogens that showed high transposase transcription, we speculate that abundant transposase expression might be common in symbionts and pathogens.

Kleiner, Manuel [Max Planck Institute for Marine Microbiology; Young, Jacque C [ORNL; Shah, Manesh B [ORNL; Verberkmoes, Nathan C [ORNL; Dubilier, Nicole [Max Planck Institute for Marine Microbiology

2013-01-01T23:59:59.000Z

131

Chemical Abundances of RR Lyrae Type C Star AS162158  

E-Print Network (OSTI)

We report the first extensive model atmosphere and detailed chemical abundance study of eight RR Lyrae variable stars of c subclass throughout their pulsation cycles. Atmospheric parameters effective temperature, surface gravity, microturbulent velocity, and metallicity have been derived. Spectra for this abundace analysis have been obtained with the echelle spectrograph of 100-inch du Pont telescope at Las Campanas Observatory. We have found metallicities and element abundance ratios to be constant within observational uncertainties at all phases of all stars. Moreover, the $\\alpha$-element and Fe-group abundance ratios with respect to iron are consistent with other horizontal-branch members (RRab, blue and red non-variables). The [Fe/H] values of these eight RRc stars have been used to anchor the metallicity scale of a much larger sample of RRc stars obtained with low S/N "snapshot" spectra.

Govea, Jose; Preston, George W; Sneden, Christopher

2013-01-01T23:59:59.000Z

132

LITERATURE SURVEY ON ISOTOPIC ABUNDANCE RATIO MEASUREMENTS - 2001-2005  

Science Conference Proceedings (OSTI)

Along with my usual weekly review of the published literature for new nuclear data, I also search for new candidates for best measurements of isotopic abundances from a single source. Most of the published articles, that I previously had found in the Research Library at the Brookhaven Lab, have already been sent to the members of the Atomic Weights Commission, by either Michael Berglund or Thomas Walczyk. In the last few days, I checked the published literature for any other articles in the areas of natural variations in isotopic abundance ratios, measurements of isotopic abundance ratios on samples of extra-terrestrial material and isotopic abundance ratio measurements performed using ICPMS instruments. Hopefully this information will be of interest to members of the Commission, the sub-committee on isotopic abundance measurements (SIAM), members of the former sub-committee on natural isotopic fractionation (SNIF), the sub-committee on extra-terrestrial isotope ratios (SETIR), the RTCE Task Group and the Guidelines Task Group, who are dealing with ICPMS and TIMS comparisons. In the following report, I categorize the publications in one of four areas. Measurements performed using either positive or negative ions with Thermal Ionization Mass Spectrometer, TIMS, instruments; measurements performed on Inductively Coupled Plasma Mass Spectrometer, ICPMS, instruments; measurements of natural variations of the isotopic abundance ratios; and finally measurements on extra-terrestrial samples with instrumentation of either type. There is overlap in these areas. I selected out variations and ET results first and then categorized the rest of the papers by TIMS and ICPMS.

HOLDEN, N.E.

2005-08-13T23:59:59.000Z

133

Power Operations  

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

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

134

Solar Power Potential in SE New Mexico  

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

Solar Power Potential in Southeast New Mexico Solar Power Potential in Southeast New Mexico Solar Power Project Opportunities Abound in the Region The WIPP site is receives abundant solar energy with 6-7 kWh/sq meter power production potential As the accompanying map of New Mexico shows, the WIPP site enjoys abundant year-round sunshine. With an average solar power production potential of 6-7 kWh/sq meter per day, one exciting project being studied for location at WIPP is a 30-50 MW Solar Power Tower: The American Solar Energy Society (ASES) is is a national trade association promoting solar energy as a clean source of electricity, and provides a comprehensive resource for additional information. DOE's Office of Energy Efficiency and Renewable Energy is also a comprehensive resource for more information on renewable energy.

135

HAWT Power Inc | Open Energy Information  

Open Energy Info (EERE)

energy Product HAWT Power Inc. is a manufacturer and supplier of medium and small sized wind turbines. providing complete solutions, including consulting, designing, modeiling,...

136

PGCapping: exploiting power gating for power capping and core lifetime balancing in CMPs  

Science Conference Proceedings (OSTI)

Optimizing the performance of a chip multiprocessor (CMP) within a power cap has recently received a lot of attention. However, most existing solutions rely solely on DVFS, which is anticipated to have only limited actuation ranges in the future. Power ... Keywords: chip multiprocessor, control theory, lifetime balancing, power capping, power control, power gating

Kai Ma; Xiaorui Wang

2012-09-01T23:59:59.000Z

137

Higher powers in gravitation  

SciTech Connect

We consider the Friedmann-Robertson-Walker cosmologies of theories of gravity that generalize the Einstein-Hilbert action by replacing the Ricci scalar R with some function f(R). The general asymptotic behavior of these cosmologies is found, at both early and late times, and the effects of adding higher and lower powers of R to the Einstein-Hilbert action is investigated. The assumption that the highest powers of R should dominate the Universe's early history, and that the lowest powers should dominate its future is found to be inaccurate. The behavior of the general solution is complicated, and while it can be the case that single powers of R dominate the dynamics at late times, it can be either the higher or lower powers that do so. It is also shown that it is often the lowest powers of R that dominate at early times, when approach to a bounce or a Tolman solution are generic possibilities. Various examples are considered, and both vacuum and perfect fluid solutions are investigated.

Clifton, Timothy [Department of Astrophysics, University of Oxford, Oxford, OX1 3RH (United Kingdom)

2008-10-15T23:59:59.000Z

138

Mercury and platinum abundances in mercury-manganese stars  

E-Print Network (OSTI)

We report new results for the elemental and isotopic abundances of the normally rare elements mercury and platinum in HgMn stars. Typical overabundances can be 4 dex or more. The isotopic patterns do not follow the fractionation model of White et al (1976).

C. M. Jomaron; M. M. Dworetsky; D. A. Bohlender

1998-05-06T23:59:59.000Z

139

Carbon Abundances in the Galactic Thin and Thick Disks  

E-Print Network (OSTI)

Although carbon is, together with oxygen and nitrogen, one of the most important elements in the study of galactic chemical evolution its production sites are still poorly known and have been much debated (see e.g. Gustafsson et al. 1999; Chiappini et al. 2003). To trace the origin and evolution of carbon we have determined carbon abundances from the forbidden [C I] line at 8727 A and made comparisons to oxygen abundances from the forbidden [O I] line at 6300 A in a sample of 51 nearby F and G dwarf stars. These data and the fact that the forbidden [C I] and [O I] lines are very robust abundance indicators (they are essentially insensitive to deviations from LTE and uncertainties in the stellar parameters, see, e.g., Gustafsson et al. 1999; Asplund et al. 2005) enable us to very accurately measure the C/O ratio as well as individual C and O abundances. Our first results indicate that the time-scale for the main source that contribute to the carbon enrichment of the interstellar medium operate on the same time-scale as those that contribute to the iron enrichment (and can possibly be AGB stars...)

T. Bensby; S. Feltzing

2005-06-07T23:59:59.000Z

140

GASEOUS CO ABUNDANCE-AN EVOLUTIONARY TRACER FOR MOLECULAR CLOUDS  

SciTech Connect

Planck cold clumps are among the most promising objects to investigate the initial conditions of the evolution of molecular clouds. In this work, by combing the dust emission data from the survey of the Planck satellite with the molecular data of {sup 12}CO/{sup 13}CO/C{sup 18}O (1-0) lines from observations with the Purple Mountain Observatory 13.7 m telescope, we investigate the CO abundance, CO depletion, and CO-to-H{sub 2} conversion factor of 674 clumps in the early cold cores sample. The median and mean values of the CO abundance are 0.89 Multiplication-Sign 10{sup -4} and 1.28 Multiplication-Sign 10{sup -4}, respectively. The mean and median of CO depletion factor are 1.7 and 0.9, respectively. The median value of X{sub CO-to-H{sub 2}} for the whole sample is 2.8 Multiplication-Sign 10{sup 20} cm{sup -2} K{sup -1} km{sup -1} s. The CO abundance, CO depletion factor, and CO-to-H{sub 2} conversion factor are strongly (anti-)correlated to other physical parameters (e.g., dust temperature, dust emissivity spectral index, column density, volume density, and luminosity-to-mass ratio). To conclude, the gaseous CO abundance can be used as an evolutionary tracer for molecular clouds.

Liu Tie; Wu Yuefang; Zhang Huawei, E-mail: liutiepku@gmail.com, E-mail: ywu@pku.edu.cn [Department of Astronomy, Peking University, Beijing 100871 (China)

2013-09-20T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" 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

Aerial Surveys to Estimate Abundance of Wintering Waterfowl in Mississippi  

E-Print Network (OSTI)

1 Aerial Surveys to Estimate Abundance of Wintering Waterfowl in Mississippi Aaron Pearse, Rick Kaminski, Steve Dinsmore, and Ken Reinecke Monitoring Waterfowl · Banding program · Breeding-ground survey(s) · Hunter surveys · Wintering waterfowl surveys Objectives Design Evaluate Application 1) Sampling 2

Gray, Matthew

142

Accurate estimation of abundance of cetaceans from survey data requires  

E-Print Network (OSTI)

to both survey design and analysis (Buckland et al., 2001). Aerial surveys of cetaceans depend on rapid- tion of abundance. We present here the results of a series of aerial surveys designed to estimate survey, an object or group of objects is encountered, an aerial observer has only a few seconds

143

Variation in foliar 15N abundance and the availability of soil nitrogen on Walker Branch Watershed  

Science Conference Proceedings (OSTI)

Spatial patterns in natural {sup 15}N abundance ({sup o}{sup 15}N) in soil, soil solutions, and non-N{sub 2}-fixing plants were studied in the deciduous forest on Walker Branch Watershed near Oak Ridge, Tennessee. This study was undertaken to test the hypothesis that foliar {sup o}{sup 15}N values are related to the availability of inorganic nitrogen in mineral soil. Soils collected in or near valley bottoms on the watershed had higher levels of net nitrogen mineralization and net nitrification potential than those sampled from ridges and slopes. More positive foliar {sup o}{sup 15}N values occurred in valley bottoms, which, relative to other positions on the watershed, were characterized by greater availability of soil nitrogen and lower C-to-N ratios in the O{sub i}-horizon, in the surface mineral soil, and in autumn leaf fall. Although leaf nitrogen concentrations changed significantly over the course of the growing season, there was little seasonal variation in foliar {sup o}{sup 15}N values. A hypothesis about the relative importance of different sources of nitrogen to the forest and how nitrogen cycling varies with topography in this nitrogen-deficient ecosystem was derived, in part, from spatial patterns in natural {sup 15}N abundance. There appear to be two processes affecting the topographic patterns in foliar {sup 15}N abundance on this watershed: (1) greater uptake from isotopically heavy pools of inorganic soil nitrogen by plants in valley bottoms, and (2) uptake of isotopically light ammonium-N in atmospheric deposition by plants on ridges and slopes (where the availability of inorganic soil nitrogen to plant roots is more limited). Results from this study indicate that foliar {sup o}{sup 15}N values are positively correlated with net nitrification potential in surface soil.

Garten Jr, Charles T [ORNL

1993-10-01T23:59:59.000Z

144

Green Power Network: News  

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

News News TVA Seeks 126 MW of Renewables in 2014 December 2013 More News More News Subscribe to E-Mail Update Subscribe to e-mail update Events EPA Webinar - The Power of Aggregated Purchasing: How to Green Your Electricity Supply & Save Money January 15, 2014 1:00-2:00 p.m. ET Previous Webinars More News Features Green Power Market Status Report (2011 Data) Featured Green Power Reports News Archive Subscribe to Green Power News TVA Seeks 126 MW of Renewables in 2014 The Tennessee Valley Authority (TVA) is increasing the capacity of its renewable energy power purchase programs by 7 peercent over 2013, with a total capacity of 126 megawatts (MW) being offered. The increase in capacity is being spread across two of TVA's three power purchase programs - Green Power Providers, Solar Solutions Initiative, and the Renewable Standard Offer. The Green Power Providers program has 10 MW of available capacity for the development of small-scale solar, wind, biomass and hydro generation systems that are 50 kilowatts (kW) or less. Within the Green Power Providers program TVA has doubled the residential capacity from 2 MW to 4 MW and will be paying all power providers a total of 14¢ per kilowatt-hour (kWh). The Solar Solutions Initiative program, which focuses on installations between 50 kW and 1 MW, has been expanded from 10 MW of capacity to 16 MW and now pays a premium of 6¢/kWh. TVA's third power purchase program, the Renewable Standard Offer continues to have 100 MW of available capacity for projects between 1 MW and 20 MW. Prior to these program expansions TVA's renewables portfolio consisted of 128 MW of operating or committed solar, 1,500 MW of wind, and 60 MW of biomass.

145

Solar models with accretion. I. Application to the solar abundance problem  

E-Print Network (OSTI)

We generate new standard solar models using newly analyzed nuclear fusion cross sections and present results for helioseismic quantities and solar neutrino fluxes. We discuss the status of the solar abundance problem and investigate whether nonstandard solar models with accretion from the protoplanetary disk might alleviate the problem. We examine a broad range of possibilities, analyzing both metal-enriched and metal-depleted accretion models and exploring three scenarios for the timing of the accretion. Only partial solutions are found: one can bring either the depth of the convective zone or the surface helium abundance into agreement with helioseismic results, but not both simultaneously. In addition, detailed results for solar neutrino fluxes show that neutrinos are a competitive source of information about the solar core and can help constrain possible accretion histories of the Sun. Finally, we briefly discuss how measurements of solar neutrinos from the CN-cycle could shed light on the interaction between the early Sun and its protoplanetary disk.

Aldo M. Serenelli; Wick C. Haxton; Carlos Pena-Garay

2011-04-08T23:59:59.000Z

146

A sink-n-hoist framework for leakage power reduction  

Science Conference Proceedings (OSTI)

Power leakage constitutes an increasing fraction of the total power consumption in modern semiconductor technologies. Recent research efforts have tried to integrate architecture and compiler solutions to employ power-gating mechanisms to reduce leakage ... Keywords: balanced scheduling, compilers for low power, data-flow analysis, leakage power reduction, power-gating mechanisms

Yi-Ping You; Chung-Wen Huang; Jenq Kuen Lee

2005-09-01T23:59:59.000Z

147

RWE Solutions | Open Energy Information  

Open Energy Info (EERE)

RWE Solutions RWE Solutions Jump to: navigation, search Name RWE Solutions Place Neu-Isenburg, Germany Zip 63263 Sector Solar Product Germany-based, subsidiary of RWE AG plans, builds and manages energy infrastructure for utilities (power, gas, water, steam, heat and cooling). RWE Solutions through its subsidiaries is invovled in the solar sector Coordinates 50.05652°, 8.695144° 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":50.05652,"lon":8.695144,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

148

Protein Puzzles and Scientific Solutions  

Office of Science (SC) Website

Articles » 2014 » Protein Articles » 2014 » Protein Puzzles and Scientific Solutions News Featured Articles 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Science Headlines Presentations & Testimony News Archives Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 01.06.14 Protein Puzzles and Scientific Solutions Researchers at SLAC National Accelerator Laboratory solve fiendishly complicated structures using X-ray savvy and serious computing power. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo The Coherent X-ray Imaging experimental station at SLAC's Linac Coherent Light Source. Photo courtesy of Brad Plummer/SLAC In crystallography experiments at the Coherent X-ray Imaging experimental

149

Swaging Problems and Solutions  

Science Conference Proceedings (OSTI)

Table 5   Some swaging problems, potential causes, and possible solutions...causes Solutions Difficult feeding Work material too hard Anneal or stress relieve to remove effects of cold

150

Solar Abundance of Elements from Neutron-Capture Cross Sections  

E-Print Network (OSTI)

Excess lightweight products of slow neutron capture in the photosphere, over the mass range of 25 to 207 amu, confirm the solar mass separation recorded by excess lightweight isotopes in the solar wind, over the mass range of 3 to 136 amu [Solar Abundance of the Elements, Meteoritics, volume 18, 1983, pages 209 to 222]. Both measurements show that major elements inside the Sun are Fe, O, Ni, Si and S, like those in rocky planets.

O. Manuel; W. A. Myers; Y. Singh; M. Pleess

2004-12-19T23:59:59.000Z

151

Big Data Solutions Glossary  

Science Conference Proceedings (OSTI)

Page 1. Big Data Solutions Reference Glossary (14 pages) Very brief descriptions and links are listed here to provide starting ...

2013-07-28T23:59:59.000Z

152

Solutioning and Aging Behaviours  

Science Conference Proceedings (OSTI)

Mar 13, 2012 ... Aluminum Alloys: Fabrication, Characterization and Applications: Solutioning and Aging Behaviours Sponsored by: The Minerals, Metals and...

153

Solutioning and Aging Behaviors  

Science Conference Proceedings (OSTI)

Aluminum Alloys: Development, Characterization and Applications: Solutioning and Aging Behaviors Sponsored by: TMS Light Metals Division, TMS: Aluminum

154

Primordial Nucleosynthesis: The Predicted and Observed Abundances and Their Consequences  

E-Print Network (OSTI)

For a brief time in its early evolution the Universe was a cosmic nuclear reactor. The expansion and cooling of the Universe limited this epoch to the first few minutes, allowing time for the synthesis in astrophysically interesting abundances of only the lightest nuclides (D, 3He, 4He, 7Li). For big bang nucleosynthesis (BBN) in the standard models of cosmology and particle physics (SBBN), the SBBN-predicted abundances depend on only one adjustable parameter, the baryon density parameter (the ratio by number of baryons (nucleons) to photons). The predicted and observed abundances of the relic light elements are reviewed, testing the internal consistency of primordial nucleosynthesis. The consistency of BBN is also explored by comparing the values of the cosmological parameters inferred from primordial nucleosynthesis for the standard model and for models with non-standard early Universe expansion rates with those determined from studies of the cosmic background radiation, which provides a snapshot of the Universe some 400 thousand years after BBN ended.

Gary Steigman

2010-08-27T23:59:59.000Z

155

Separation of metal ions from aqueous solutions  

DOE Patents (OSTI)

This invention is comprised of a process and apparatus for quantitatively and selectively separating metal ions from mixtures thereof in aqueous solution. The apparatus includes, in combination, a horizontal electrochemical flowing cell containing flowing bulk electrolyte solution and an aqueous, metal ion-containing solution, the cell containing a metal mesh working electrode, a counter electrode positioned downstream from the working electrode, an independent variable power supply/potentiostat positioned outside of the flowing cell and connected to the electrodes, and optionally a detector such as a chromatographic detector, positioned outside the flowing cell. This apparatus and its operation has significant application where trace amounts of metal ions are to be separated.

Almon, A.

1991-12-31T23:59:59.000Z

156

Minimization of voltage deviation and power losses in power networks using Pareto optimization methods  

Science Conference Proceedings (OSTI)

Voltage regulation is an important task in electrical engineering for controlling node voltages in a power network. A widely used solution for the problem of voltage regulation is based on adjusting the taps in under load tap changers (ULTCs) power transformers ... Keywords: Multi-objective optimization, Power distribution network, Power losses, Under load tap changers, Voltage regulation

Francisco G. Montoya; Ral Baos; Consolacin Gil; Antonio Espn; Alfredo Alcayde; Julio Gmez

2010-08-01T23:59:59.000Z

157

METHANE AND NITROGEN ABUNDANCES ON PLUTO AND ERIS  

SciTech Connect

We present spectra of Eris from the MMT 6.5 m Telescope and Red Channel Spectrograph (5700-9800 A, 5 A pixel{sup -1}) on Mt. Hopkins, AZ, and of Pluto from the Steward Observatory 2.3 m Telescope and Boller and Chivens Spectrograph (7100-9400 A, 2 A pixel{sup -1}) on Kitt Peak, AZ. In addition, we present laboratory transmission spectra of methane-nitrogen and methane-argon ice mixtures. By anchoring our analysis in methane and nitrogen solubilities in one another as expressed in the phase diagram of Prokhvatilov and Yantsevich, and comparing methane bands in our Eris and Pluto spectra and methane bands in our laboratory spectra of methane and nitrogen ice mixtures, we find Eris' bulk methane and nitrogen abundances are {approx}10% and {approx}90% and Pluto's bulk methane and nitrogen abundances are {approx}3% and {approx}97%. Such abundances for Pluto are consistent with values reported in the literature. It appears that the bulk volatile composition of Eris is similar to the bulk volatile composition of Pluto. Both objects appear to be dominated by nitrogen ice. Our analysis also suggests, unlike previous work reported in the literature, that the methane and nitrogen stoichiometry is constant with depth into the surface of Eris. Finally, we point out that our Eris spectrum is also consistent with a laboratory ice mixture consisting of 40% methane and 60% argon. Although we cannot rule out an argon-rich surface, it seems more likely that nitrogen is the dominant species on Eris because the nitrogen ice 2.15 {mu}m band is seen in spectra of Pluto and Triton.

Tegler, S. C.; Cornelison, D. M.; Abernathy, M. R.; Bovyn, M. J.; Burt, J. A.; Evans, D. E.; Maleszewski, C. K.; Thompson, Z. [Department of Physics and Astronomy, Northern Arizona University, Flagstaff, AZ 86011 (United States); Grundy, W. M. [Lowell Observatory, Flagstaff, AZ 86001 (United States); Romanishin, W. [Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019 (United States); Vilas, F., E-mail: Stephen.Tegler@nau.ed, E-mail: David.Cornelison@nau.ed, E-mail: W.Grundy@lowell.ed, E-mail: wjr@nhn.ou.ed, E-mail: fvilas@mmto.or [MMT Observatory, University of Arizona, Tucson, AZ 85721 (United States)

2010-12-10T23:59:59.000Z

158

THE RAVE CATALOG OF STELLAR ELEMENTAL ABUNDANCES: FIRST DATA RELEASE  

Science Conference Proceedings (OSTI)

We present chemical elemental abundances for 36,561 stars observed by the RAdial Velocity Experiment (RAVE), an ambitious spectroscopic survey of our Galaxy at Galactic latitudes |b| > 25 Degree-Sign and with magnitudes in the range 9 pipeline in which the curve of growth of individual lines is obtained from a library of absorption line equivalent widths to construct a model spectrum that is then matched to the observed spectrum via a {chi}{sup 2} minimization technique. We plan to extend this pipeline to include estimates for other elements, such as oxygen and sulfur, in future data releases.

Boeche, C.; Williams, M.; De Jong, R. S.; Steinmetz, M. [Leibniz-Institut fuer Astrophysik Potsdam (AIP), D-14482 Potsdam (Germany); Siebert, A.; Bienayme, O. [Observatoire Astronomique de Strasbourg, Universite de Strasbourg, CNRS, UMR 7550, F-67000 Strasbourg (France); Fulbright, J. P.; Ruchti, G. R. [Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218 (United States); Bland-Hawthorn, J. [Sydney Institute for Astronomy, School of Physics A28, University of Sydney, NSW 2006 (Australia); Campbell, R. [Department of Physics and Astronomy, Western Kentucky University, Bowling Green, KY (United States); Freeman, K. C. [Research School of Astronomy and Astrophysics, Australia National University, Weston Creek, Canberra ACT 2611 (Australia); Gibson, B. K. [Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE (United Kingdom); Gilmore, G. [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom); Grebel, E. K. [Astronomisches Rechen-Institut, Zentrum fuer Astronomie der Universitaet Heidelberg, D-69120 Heidelberg (Germany); Helmi, A. [Kapteyn Astronomical Institute, University of Groningen, 9700 AV Groningen (Netherlands); Munari, U. [INAF Osservatorio Astronomico di Padova, Asiago I-36012 (Italy); Navarro, J. F. [Department of Physics and Astronomy, University of Victoria, Victoria BC V8W 3P6 (Canada); Parker, Q. A.; Reid, W. [Department of Physics and Astronomy, Faculty of Sciences, Macquarie University, Sydney, NSW 2109 (Australia); Seabroke, G. M. [Mullard Space Science Laboratory, University College London, Holmbury, St. Mary RH5 6NT (United Kingdom); and others

2011-12-15T23:59:59.000Z

159

Advanced Compliance Solutions, Inc.  

Science Conference Proceedings (OSTI)

... [12/62087] IEC 62087:2008 Methods of measurement for the power consumption of audio, video and related equipment. ...

2013-09-06T23:59:59.000Z

160

Innovative Financing Solutions  

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

AGENCY'S ENERGY STAR PROGRAM INNOVATIVE FINANCING SOLUTIONS: FINDING MONEY FOR YOUR ENERGY EFFICIENCY PROJECTS Are you having trouble getting energy efficiency projects...

Note: This page contains sample records for the topic "abundant power solutions" 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

Information Technology Solutions  

Information Technology Solutions Advantages LLNL and University of Texas Medical Branch (UTMB) have used nickel-chelating nanolipoprotein particles (Ni-NLPs) as a ...

162

Information Technology Solutions - Energy  

texturing process is a cost effective alternative that uses nontoxic materials. Information Technology Solutions ... United States Department of Energys National

163

PowerPoint Presentation  

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

Oxy-Combustion Oxygen Transport Membrane Development Wladimir Sarmiento-Darkin July 11 th , 2013 1 | Praxair Business Confidential | 7/16/2013 2 ...if we didn't need to go this big OTM is a modular solution that may enable future low cost syngas production at small scales ...it would be easier to maximize NG value creation Praxair - OTM for Industrial Applications NT43088 Program Overview: DOE NT43088 Phase 1 May'07 to Dec'09 * OTM integrated coal power plant * Advanced oxy-combustion cycle * Process economic evaluation * Membrane performance improvement Phase 2 Jan'10 to Jun'12 * OTM integrated coal power plant * Advanced oxy-combustion cycle

164

The Primordial Abundance of $^6$Li and $^9$be  

E-Print Network (OSTI)

Light element ($^6$Li, $^7$Li and $^9$Be) depletion isochrones for halo stars have been calculated with standard stellar evolution models. These models include the latest available opacities and are computed through the sub-giant branch. If $^6$Li is not produced in appreciable amounts by stellar flares, then the detection of $^6$Li in HD 84937 by Smith, Lambert \\& Nissen (1993) is compatible with standard stellar evolution and standard big bang nucleosynthesis only if HD 84937 is a sub-giant. The present parallax is inconsistent with HD 84937 being a sub-giant star at the $2.5\\, \\sigma$ level. The most metal poor star with a measured $^9$Be abundance is HD 140283, which is a relatively cool sub-giant. Standard stellar evolution predict that $^9$Be will have been depleted in this star by $\\sim 0.3$ dex (for ${\\rm T_{eff}} = 5640$ K). Revising the abundance upward changes the oxygen-beryllium relation, suggesting incompatible with standard comic ray production models, and hence, standard big bang nucleosynthesis. However, an increase in the derived temperature of HD 140283 to 5740 K would result in no depletion of $^9$Be and agreement with standard big bang nucleosynthesis.

Brian Chaboyer

1994-05-31T23:59:59.000Z

165

Chlorine-36 abundance in natural and synthetic perchlorate  

SciTech Connect

Perchlorate (ClO{sub 4}{sup -}) is ubiquitous in the environment. It occurs naturally as a product of atmospheric photochemical reactions, and is synthesized for military, aerospace, and industrial applications. Nitrate-enriched soils of the Atacama Desert (Chile) contain high concentrations of natural ClO{sub 4}{sup -}; nitrate produced from these soils has been exported worldwide since the mid-1800's for use in agriculture. The widespread introduction of synthetic and agricultural ClO{sub 4}{sup -} into the environment has complicated attempts to understand the geochemical cycle of ClO{sub 4}{sup -}. Natural ClO{sub 4}{sup -} samples from the southwestern United States have relatively high {sup 36}Cl abundances ({sup 36}Cl/Cl = 3,100 x 10{sup -15} to 28,800 x 10{sup -15}), compared with samples of synthetic ({sup 36}Cl/Cl = 0.0 x 10{sup -15} to 40 x 10{sup -15}) and Atacama Desert ({sup 36}Cl/Cl = 0.9 x 10{sup -15} to 590 x 10{sup -15}) ClO{sub 4}{sup -}. These data give a lower limit for the initial {sup 36}Cl abundance of natural ClO{sub 4}{sup -} and provide temporal and other constraints on its geochemical cycle.

Heikoop, Jeffrey M [Los Alamos National Laboratory; Dale, M [NON LANL; Sturchio, Neil C [UNIV OF ILLIONOIS; Caffee, M [PURDUE UNIV; Belosa, A D [UNIV OF ILLINOIS; Heraty, Jr., L J [UNIV OF ILLINOIS; Bohike, J K [RESTON, VA; Hatzinger, P B [SHAW ENIVIORNMENTAL C0.; Jackson, W A [TEXAS TECH; Gu, B [ORNL

2009-01-01T23:59:59.000Z

166

The element abundance FIP effect in the quiet Sun  

E-Print Network (OSTI)

The Mg/Ne abundance ratio in the quiet Sun is measured in both network and supergranule cell centre regions through EUV spectra from the Coronal Diagnostic Spectrometer on SOHO. Twenty four sets of data over the period 1996 March to 1998 June (corresponding to solar minimum) are studied. Emission lines of the sequences Ne IV-VII and Mg V-VIII are simultaneously analysed by comparing with theoretical emissivities from the CHIANTI database to yield the Mg/Ne abundance and emission measure over the temperature region 5.0 Sun connects into the solar wind. The quiet Sun spectra are also utilised to determine the coronal density and temperature, leading to average values of 2.6^+0.5_-0.4 x 10^8 cm^-3 and log (T/K)=5.95 +/- 0.02. No significant trend with the rise in solar activity during 1996--98 is found for any of the derived quantities, implying that quiet Sun regions show little dependence on the solar cycle.

P. R. Young

2005-03-02T23:59:59.000Z

167

Lithium abundances in exoplanet-host stars : modelling  

E-Print Network (OSTI)

Aims. Exoplanet-host stars (EHS) are known to present superficial chemical abundances different from those of stars without any detected planet (NEHS). EHS are, on the average, overmetallic compared to the Sun. The observations also show that, for cool stars, lithium is more depleted in EHS than in NEHS. The aim of this paper is to obtain constraints on possible models able to explain this difference, in the framework of overmetallic models compared to models with solar abundances. Methods. We have computed main sequence stellar models with various masses and metallicities. The results show different behaviour for the lithium destruction according to those parameters. We compare these results to the spectroscopic observations of lithium. Results. Our models show that the observed lithium differences between EHS and NEHS are not directly due to the overmetallicity of the EHS: some extra mixing is needed below the convective zones. We discuss possible explanations for the needed extra mixing, in particular an increase of the mixing efficiency associated with the development of shear instabilities below the convective zone, triggered by angular momentum transfer due to the planetary migration.

M. Castro; S. Vauclair; O. Richard; N. C. Santos

2008-11-18T23:59:59.000Z

168

Regional Transmission Projects: Finding Solutions  

Science Conference Proceedings (OSTI)

The Keystone Center convened and facilitated a year-long Dialogue on "Regional Transmission Projects: Finding Solutions" to develop recommendations that will help address the difficult and contentious issues related to expansions of regional electric transmission systems that are needed for reliable and economic transmission of power within and across regions. This effort brought together a cross-section of affected stakeholders and thought leaders to address the problem with the collective wisdom of their experience and interests. Transmission owners sat at the table with consumer advocates and environmental organizations. Representatives from regional transmission organizations exchanged ideas with state and federal regulators. Generation developers explored common interests with public power suppliers. Together, the Dialogue participants developed consensus solutions about how to begin unraveling some of the more intractable issues surrounding identification of need, allocation of costs, and reaching consensus on siting issues that can frustrate the development of regional transmission infrastructure. The recommendations fall into three broad categories: 1. Recommendations on appropriate institutional arrangements and processes for achieving regional consensus on the need for new or expanded transmission infrastructure 2. Recommendations on the process for siting of transmission lines 3. Recommendations on the tools needed to support regional planning, cost allocation, and siting efforts. List of Dialogue participants: List of Dialogue Participants: American Electric Power American Transmission Company American Wind Energy Association California ISO Calpine Corporation Cinergy Edison Electric Institute Environmental Defense Federal Energy Regulatory Commission Great River Energy International Transmission Company ISO-New England Iowa Public Utility Board Kanner & Associates Midwest ISO National Association of Regulatory Utility Commissioners National Association of State Utility Consumer Advocates National Grid Northeast Utilities PA Office of Consumer Advocates Pacific Gas & Electric Corporation Pennsylvania Public Utility Commission PJM Interconnection The Electricity Consumers Resource Council U.S. Department of Energy US Department of the Interior Van Ness Feldman Western Interstate Energy Board Wind on the Wires Wisconsin Public Service Commission Xcel Energy

The Keystone Center

2005-06-15T23:59:59.000Z

169

The oxygen abundance gradient in M101: the reliability of the P method  

E-Print Network (OSTI)

We present the oxygen abundance determination for 90 HII regions in the inner parts of the grand design galaxy M101. The abundances were derived employing the P method (Pilyugin 2001a). A comparison is made with previous determinations using another calibration and direct measurements of electron temperature to derive the oxygen abundance. The results show agreement with the abundances derived from the electron temperature method and also show that the older calibration is not as accurate as the P method.

B. Cedres; M. A. Urbaneja; J. Cepa

2004-04-29T23:59:59.000Z

170

The oxygen abundance gradient in M101: the reliability of the P method  

E-Print Network (OSTI)

We present the oxygen abundance determination for 90 HII regions in the inner parts of the grand design galaxy M101. The abundances were derived employing the P method (Pilyugin 2001a). A comparison is made with previous determinations using another calibration and direct measurements of electron temperature to derive the oxygen abundance. The results show agreement with the abundances derived from the electron temperature method and also show that the older calibration is not as accurate as the P method.

Cedres, B; Cepa, J

2004-01-01T23:59:59.000Z

171

Solvent wash solution  

DOE Patents (OSTI)

Process for removing diluent degradation products from a solvent extraction solution, which has been used to recover uranium and plutonium from spent nuclear fuel. A wash solution and the solvent extraction solution are combined. The wash solution contains (a) water and (b) up to about, and including, 50 volume percent of at least one-polar water-miscible organic solvent based on the total volume of the water and the highly-polar organic solvent. The wash solution also preferably contains at least one inorganic salt. The diluent degradation products dissolve in the highly-polar organic solvent and the organic solvent extraction solvent do not dissolve in the highly-polar organic solvent. The highly-polar organic solvent and the extraction solvent are separated.

Neace, James C. (Blackville, SC)

1986-01-01T23:59:59.000Z

172

Solvent wash solution  

DOE Patents (OSTI)

A process is claimed for removing diluent degradation products from a solvent extraction solution, which has been used to recover uranium and plutonium from spent nuclear fuel. A wash solution and the solvent extraction solution are combined. The wash solution contains (a) water and (b) up to about, and including, 50 vol % of at least one-polar water-miscible organic solvent based on the total volume of the water and the highly-polar organic solvent. The wash solution also preferably contains at least one inorganic salt. The diluent degradation products dissolve in the highly-polar organic solvent and the organic solvent extraction solvent do not dissolve in the highly-polar organic solvent. The highly-polar organic solvent and the extraction solvent are separated.

Neace, J.C.

1984-03-13T23:59:59.000Z

173

Dispersant solutions for dispersing hydrocarbons  

DOE Patents (OSTI)

A dispersant solution includes a hydrocarbon dispersing solution derived from a bacterium from ATCC 75527, ATCC 75529, or ATCC 55638.

Tyndall, Richard L. (Clinton, TN)

1997-01-01T23:59:59.000Z

174

Thermodynamics of ATP in Solution  

Science Conference Proceedings (OSTI)

Thermodynamics of ATP in Solution. Summary: ... Computations of the thermodynamics of biomolecules in solution are rare in the literature. ...

2013-02-26T23:59:59.000Z

175

Power Electronics  

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

Power electronics (PE) play a critical role in transforming the current electric grid into the next-generation grid. PE enable utilities to deliver power to their customers effectively while...

176

Wind Power  

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

Power As the accompanying map of New Mexico shows, the best wind power generation potential near WIPP is along the Delaware Mountain ridge line of the southern Guadalupe Mountains,...

177

Power Supplies  

Science Conference Proceedings (OSTI)

Figure: ...Fig. 5 Typical medium-frequency induction power supply incorporating (a) a parallel inverter and (b) a series inverter...

178

Power supply  

DOE Patents (OSTI)

A modular, low weight impedance dropping power supply with battery backup is disclosed that can be connected to a high voltage AC source and provide electrical power at a lower voltage. The design can be scaled over a wide range of input voltages and over a wide range of output voltages and delivered power.

Yakymyshyn, Christopher Paul (Seminole, FL); Hamilton, Pamela Jane (Seminole, FL); Brubaker, Michael Allen (Loveland, CO)

2007-12-04T23:59:59.000Z

179

Abundance structure and chemical evolution of the Galactic disc  

E-Print Network (OSTI)

We have obtained high-resolution, high signal-to-noise spectra for 899 F and G dwarf stars in the Solar neighbourhood. The stars were selected on the basis of their kinematic properties to trace the thin and thick discs, the Hercules stream, and the metal-rich stellar halo. A significant number of stars with kinematic properties 'in between' the thin and thick discs were also observed in order to in greater detail investigate the dichotomy of the Galactic disc. All stars have been homogeneously analysed, using the exact same methods, atomic data, model atmospheres, etc., and also truly differentially to the Sun. Hence, the sample is likely to be free from internal errors, allowing us to, in a multi-dimensional space consisting of detailed elemental abundances, stellar ages, and the full three-dimensional space velocities, reveal very small differences between the stellar populations.

Bensby, T

2009-01-01T23:59:59.000Z

180

Building Energy Software Tools Directory : HVAC Solution  

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

HVAC Solution Back to Tool Screenshot for HVAC Solution. Screenshot for HVAC Solution. Screenshot for HVAC Solution...

Note: This page contains sample records for the topic "abundant power solutions" 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

Contracts for dispatchable power  

Science Conference Proceedings (OSTI)

Competitive bidding for electric power is maturing. Increasing numbers of utilities are soliciting proposals from private suppliers. The amount of capacity being sought is increasing, and potential suppliers appear to be abundant. Analysis of these developments still remains limited. Evidence on the behavior of this market is scarce and sketchy. The underlying economic principles that are shaping the market have not clearly been articulated. In this report we examine the economics of competitive bidding both empirically and analytically. Previous study of this market has focused on the evaluation criteria specified in Requests for Proposals (RFPs), and highly aggregated summary statistics on participation and results. We continue the examination of RFPs, but also survey the details of long term contracts that have emerged from competitive bidding. Contracts provide a new level of specific detail that has not been previously available. 68 refs., 13 figs., 25 tabs.

Kahn, E.P.; Stoft, S.; Marnay, C.; Berman, D.

1990-10-01T23:59:59.000Z

182

Carbon stars in local group dwarf galaxies: C and O abundances  

E-Print Network (OSTI)

We present abundances of carbon and oxygen as well as abundance ratios 12C/13C for a sample of carbon stars in the LMC, SMC, Carina, Sculptor and Fornax dwarf galaxies. The overall metallicities in these dwarf galaxies are lower than in the galactic disc. The observations cover most of the AGB and we discuss the abundance patterns in different regions along the AGB. The abundances are determined from infrared spectra obtained with the ISAAC spectrometer on VLT (R=1500) and the Phoenix Spectrometer on Gemini South (R=50000). The synthetic spectra used in the analysis were computed with MARCS model atmospheres. We find that the oxygen abundance is decreasing with decreasing overall metallicity of the system while the C/O ratio at a given evolutionary phase is increasing with decreasing oxygen abundance. keywords Stars: abundances -- Stars: carbon -- Stars: AGB and post-AGB -- Galaxies: dwarf -- Local Group -- Infrared: stars

R. Wahlin; K. Eriksson; B. Gustafsson; K. H. Hinkle; D. L. Lambert; N. Ryde; B. Westerlund

2006-05-10T23:59:59.000Z

183

Power County | Open Energy Information  

Open Energy Info (EERE)

County County Jump to: navigation, search Name Power County Facility Power County Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner CG Power Solutions Developer CG Power Solutions Energy Purchaser PacifiCorp Location American Falls ID Coordinates 42.66135774°, -112.9727554° 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":42.66135774,"lon":-112.9727554,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

184

Microsoft PowerPoint - AMSC SolarTie.pptx  

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

Solutions * Worldwide leader in connecting renewable energy sources to the power grid * D-VAR and D-VAR RT technology utilized at more than 70 wind plants...

185

Putting Economic Power In Distributed Power t  

U.S. Energy Information Administration (EIA)

Putting Economic Power in Distributed Power. A distributed electricity generation system, often called distributed power, usually consists of ...

186

Is Nuclear Energy the Solution?  

E-Print Network (OSTI)

clear; second, nuclear power plants are stated terroristinvesting in new nuclear power plants because they do notas things stand, new nuclear power plants will not be cost

Saier, Milton H.; Trevors, Jack T.

2010-01-01T23:59:59.000Z

187

Is Nuclear Energy the Solution?  

E-Print Network (OSTI)

alternatives. For example, wind power and other renewableof electrical energy. Wind power and other renewables, suchcarbon per dollar as wind power. Recent studies analyzing

Saier, Milton H.; Trevors, Jack T.

2010-01-01T23:59:59.000Z

188

Power Marketing  

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

Certificate Solicitations Benefit Review Energy Services Rates and Repayment WindHydro Integration Feasibility Study Send correspondence to: Power Marketing Manager Western...

189

The Water Vapor Abundance in Orion KL Outflows  

E-Print Network (OSTI)

We present the detection and modeling of more than 70 far-IR pure rotational lines of water vapor, including the 18O and 17O isotopologues, towards Orion KL. Observations were performed with the Long Wavelength Spectrometer Fabry-Perot (LWS/FP; R~6800-9700) on board the Infrared Space Observatory (ISO) between ~43 and ~197 um. The water line profiles evolve from P-Cygni type profiles (even for the H2O18 lines) to pure emission at wavelengths above ~100 um. We find that most of the water emission/absorption arises from an extended flow of gas expanding at 25+-5 kms^-1. Non-local radiative transfer models show that much of the water excitation and line profile formation is driven by the dust continuum emission. The derived beam averaged water abundance is 2-3x10^-5. The inferred gas temperature Tk=80-100 K suggests that: (i) water could have been formed in the "plateau" by gas phase neutral-neutral reactions with activation barriers if the gas was previously heated (e.g. by shocks) to >500 K and/or (ii) H2O formation in the outflow is dominated by in-situ evaporation of grain water-ice mantles and/or (iii) H2O was formed in the innermost and warmer regions (e.g. the hot core) and was swept up in ~1000 yr, the dynamical timescale of the outflow.

J. Cernicharo; J. R. Goicoechea; F. Daniel; M. R. Lerate; M. J. Barlow; B. M. Swinyard; E. van Dishoeck; T. L. Lim; S. Viti; J. Yates

2006-08-16T23:59:59.000Z

190

STELLAR ELEMENTAL ABUNDANCE PATTERNS: IMPLICATIONS FOR PLANET FORMATION  

SciTech Connect

The solar photosphere is depleted in refractory elements compared to most solar twins, with the degree of depletion increasing with an element's condensation temperature. Here, I show that adding 4 Earth masses of Earth-like and carbonaceous-chondrite-like material to the solar convection zone brings the Sun's composition into line with the mean value for the solar twins. The observed solar composition could have arisen if the Sun's convection zone accreted material from the solar nebula that was depleted in refractory elements due to the formation of the terrestrial planets and ejection of rocky protoplanets from the asteroid belt. Most solar analogs are missing 0-10 Earth masses of rocky material compared to the most refractory-rich stars, providing an upper limit to the mass of rocky terrestrial planets that they possess. The missing mass is correlated with stellar metallicity. This suggests that the efficiency of planetesimal formation increases with stellar metallicity. Stars with and without known giant planets show a similar distribution of abundance trends. If refractory depletion is a signature of the presence of terrestrial planets, this suggests that there is not a strong correlation between the presence of terrestrial and giant planets in the same system.

Chambers, J. E., E-mail: chambers@dtm.ciw.ed [Department of Terrestrial Magnetism, Carnegie Institution for Science, 5241 Broad Branch Road, NW, Washington, DC 20015 (United States)

2010-11-20T23:59:59.000Z

191

Energy Climate Solutions | Open Energy Information  

Open Energy Info (EERE)

Climate Solutions Climate Solutions Jump to: navigation, search Name Energy Climate Solutions Place Waltham, Massachusetts Zip 02453-5339 Sector Efficiency Product Massachusetts-based third party finance arranger and developer of distributed power, cogeneration, and energy efficiency projects for colleges and universities. Coordinates 44.126439°, -73.213733° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.126439,"lon":-73.213733,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

192

SolarOne Solutions | Open Energy Information  

Open Energy Info (EERE)

SolarOne Solutions SolarOne Solutions Jump to: navigation, search Name SolarOne Solutions Address 354 Waverly Street Place Framingham, Massachusetts Zip 01702 Sector Solar Product Solar powered lighting Website http://www.solarone.net/ Coordinates 42.276902°, -71.413567° 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":42.276902,"lon":-71.413567,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

193

ConEdison Solutions | Open Energy Information  

Open Energy Info (EERE)

ConEdison Solutions ConEdison Solutions Jump to: navigation, search Name ConEdison Solutions Address 701 Westchester Avenue, Suite 300 East Place White Plains, New York Zip 10604 Sector Services Product Green Power Marketer Website http://conedisonsolutions.com/ Coordinates 41.026762°, -73.737896° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.026762,"lon":-73.737896,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

194

Decontamination solution development studies  

SciTech Connect

This study was conducted for the Westinghouse Hanford Company (WHC) by Pacific Northwest Laboratory (PNL) as part of the Hanford Grout Technology Program (HGTP). The objective of this study was to identify decontamination solutions capable of removing radioactive contaminants and grout from the Grout Treatment Facility (GTF) process equipment and to determine the impact of these solutions on equipment components and disposal options. The reference grout used in this study was prepared with simulated double-shell slurry feed (DSSF) and a dry blend consisting of 40 wt % limestone flour, 28 wt % blast furnace slag, 28 wt % fly ash, and 4 wt % type I/II Portland cement.

Allen, R.P.; Fetrow, L.K.; Kjarmo, H.E.; Pool, K.H.

1993-09-01T23:59:59.000Z

195

Employment Solutions Division (HC-13) | Department of Energy  

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

Employment Solutions Division (HC-13) Employment Solutions Division (HC-13) Employment Solutions Division (HC-13) Mission Statement This division develops and implements innovative HCM business solutions relating to corporate recruiting, organizational and workforce development, workforce and succession planning, talent capacity, and diversity outreach. Functions Directing the activities of the Corporate Outreach and Recruitment Council (with representatives from across the Department including NNSA, the Power Marketing Administrations, and the National Labs); including enhancing entry-level and mid to senior level hiring across DOE, furthering the use of automated technology in outreach and recruitment efforts, designing effective marketing and branding efforts to attract the right candidate for the right job, incorporating diversity strategies, and

196

Energy Efficiency Fund (Gas) - Home Energy Solutions and Performance  

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

Gas) - Home Energy Solutions and Gas) - Home Energy Solutions and Performance Programs Energy Efficiency Fund (Gas) - Home Energy Solutions and Performance Programs < Back Eligibility Low-Income Residential Multi-Family Residential Residential Savings Category Home Weatherization Commercial Weatherization Sealing Your Home Other Ventilation Appliances & Electronics Water Heating Program Info State Connecticut Program Type Utility Rebate Program Rebate Amount Varies Provider Customer Service The Energy Efficiency Fund, funded by Connecticut's public benefits charge, provides home energy efficiency rebate programs to customers of The Connecticut Light and Power Company and The United Illuminating Company, Connecticut Natural Gas, Southern Connecticut Gas, and Yankeegas customers. The Home Energy Solutions Program provides weatherization assistance to any

197

SOLAR CYCLE ABUNDANCE VARIATIONS IN COROTATING INTERACTION REGIONS: EVIDENCE FOR A SUPRATHERMAL ION SEED POPULATION  

Science Conference Proceedings (OSTI)

We have surveyed the heavy ion composition of corotating interaction regions (CIRs) over the recent solar minimum and combined this with our earlier survey to cover the 1998-2011 period encompassing a full solar cycle and onset of the new cycle. We find that the solar minimum CIR intensities and spectral forms are similar to those in active periods, indicating that the basic acceleration mechanism does not vary with solar activity for energies below a few MeV nucleon{sup -1}. However, the heavy ion abundances show a clear correlation with sunspot number, where heavy ions are more enhanced during active periods. Over the mass range He-Fe, the enhancement is organized by a power law in Q/M with exponent -1.9, with Fe/O varying by a factor of {approx}6. During solar minimum CIR Fe/O was {approx}0.05, well below the corresponding solar wind ratio. Previous studies have shown that rare ions (He{sup +}, {sup 3}He) enhanced in CIRs come from the suprathermal ion pool. The observations presented here extend this evidence, indicating that in addition to rare He{sup +} and {sup 3}He the CIR major heavy ion species are accelerated out of the suprathermal ion pool, not the bulk solar wind.

Mason, G. M. [Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723 (United States); Desai, M. I. [Southwest Research Institute, San Antonio, TX 78228 (United States); Li, G., E-mail: glenn.mason@jhuapl.edu [Department of Physics, University of Alabama in Huntsville, Huntsville, AL 35805 (United States)

2012-04-01T23:59:59.000Z

198

Power system  

DOE Patents (OSTI)

A power system includes a prime mover, a transmission, and a fluid coupler having a selectively engageable lockup clutch. The fluid coupler may be drivingly connected between the prime mover and the transmission. Additionally, the power system may include a motor/generator drivingly connected to at least one of the prime mover and the transmission. The power-system may also include power-system controls configured to execute a control method. The control method may include selecting one of a plurality of modes of operation of the power system. Additionally, the control method may include controlling the operating state of the lockup clutch dependent upon the mode of operation selected. The control method may also include controlling the operating state of the motor/generator dependent upon the mode of operation selected.

Hickam, Christopher Dale (Glasford, IL)

2008-03-18T23:59:59.000Z

199

Environmental impact of fusion power  

SciTech Connect

From 140th meeting on the American Association for the Advancement of Science; San Francisco, California, USA (24 Feb The environmental effects of fusion power is considered assuming as a typical model a conceptual design for a full-scale fusion power plant. The appraisal indlcates that such a system would yield plentiful, cheap power for all of the world's energy requirements and provide fine solutions to most of the environmental pollution problems if the uncertainties in the plasma physics can be resolved in the fashion that current experiments lead one to expect. (auth)

Fraas, A.P.

1973-01-01T23:59:59.000Z

200

Variation in foliar [sup 15]N abundance and the availability of soil nitrogen on Walker Branch Watershed  

SciTech Connect

Spatial patterns in natural [sup 15]N abundance ([sigma][sup 15]N) in soil, soil solutions, and non-N[sub 2]-fixing plants were studied in the deciduous forest on Walker Branch Watershed near Oak Ridge, Tennessee. This study was undertaken to test the hypothesis that foliar [sigma][sup 15]N values are related to the availability of inorganic nitrogen in mineral soil. Soils collected in or near valley bottoms on the watershed had higher levels of net nitrogen mineralization and net nitrification potential than those sampled from ridges and slopes. More positive foliar [sigma][sup 15]N values occurred in valley bottoms, which, relative to other positions on the watershed, were characterized by greater availability of soil nitrogen and lower C-to-N ratios in the O[sub 1]-horizon, in the surface mineral soil, and in autumn leaf fall. Although leaf nitrogen concentrations changed significantly over the course of the growing season, there was little seasonal variation in foliar [sigma][sup 15]N values. A hypothesis about the relative importance of different sources of nitrogen to the forest and how nitrogen cycling varies with topography in this nitrogen-deficient ecosystem was derived, in part, from spatial patterns in natural [sup 15]N abundance. There appear to be two processes affecting the topographic patterns in foliar [sup 15]N abundance on this watershed: (1) greater uptake from isotopically heavy pools of inorganic soil nitrogen by plants in valley bottoms, and (2) uptake of isotopically light ammonium-N in atmospheric deposition by plants on ridges and slopes (where the availability of inorganic soil nitrogen to plant roots is more limited). Results from this study indicate that foliar [sigma][sup 15]N values are positively correlated with net nitrification potential in surface soil. 34 refs., 13 figs., 8 tabs.

Garten, C.T. Jr. (ORNL, Oak Ridge, TN (United States))

1993-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" 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

Solidification Structures of Solid Solutions  

Science Conference Proceedings (OSTI)

Figure: ...Fig. 16 Binary phase diagrams. L, L 1 , and L 2 are liquid solutions. α and β are solid solutions. (a) Complete

202

Technical and Economic Considerations for Power Quality Improvements  

Science Conference Proceedings (OSTI)

This report addresses technical application issues and analyzes economic cost payback for power quality mitigation solutions. The solutions described are targeted at improving the process uptime for end-use customer equipment. These solutions range from modification at the substation level to customer-specified ride-through of new equipment. The report focuses on the different solutions at each level and provides expectations in terms of the relative improvements gained if the solutions are implemented.

2001-11-14T23:59:59.000Z

203

Wind Power Plant SCADA and Controls  

SciTech Connect

Modern Wind Power Plants (WPPs) contain a variety of intelligent electronic devices (IEDs), Supervisory Control and Data Acquisition (SCADA) and communication systems. This paper discusses the issues related to a typical WPP's SCADA and Control. Presentation topics are: (1) Wind Turbine Controls; (2) Wind Plant SCADA, OEM SCADA Solutions, Third-Party SCADA Solutions; (3) Wind Plant Control; and (4) Security and Reliability Compliance.

Badrzadeh, Babak [IEEE PES Wind Plant Collector System Design Working Group; Castillo, Nestor [IEEE PES Wind Plant Collector System Design Working Group; Bradt, M. [IEEE PES Wind Plant Collector System Design Working Group; Janakiraman, R. [IEEE PES Wind Plant Collector System Design Working Group; Kennedy, R. [IEEE PES Wind Plant Collector System Design Working Group; Klein, S. [IEEE PES Wind Plant Collector System Design Working Group; Smith, Travis M [ORNL; Vargas, L. [IEEE PES Wind Plant Collector System Design Working Group

2011-01-01T23:59:59.000Z

204

Integrated Solutions in Chemistry  

E-Print Network (OSTI)

Paths best traveled Choose from a portfolio of comprehensive, interlinked, intuitive and accessible chemistry resources Paths best traveled Choose from a comprehensive portfolio of interlinked, intuitive and accessible resources www.info.sciencedirect.com/solutions www.elsevier.com/chemistrysolutions ELSEVIERS

unknown authors

2004-01-01T23:59:59.000Z

205

Offshore Renewable Energy Solutions  

E-Print Network (OSTI)

and sustainable energy supply. The UK is uniquely placed to harness its natural resources ­ wind, wave and tidalOffshore Renewable Energy Solutions #12;Cefas: meeting complex requirements The Centre science centre, Cefas provides a bridge between government and industry. We have unprecedented links

206

Stochastic Power Law Fluids: Construction of a Weak Solution  

E-Print Network (OSTI)

thinning fluids are used for automobile engine oil and pipeline for crude oil transportation, while result [MNRR96]. Let us briefly sketch the outline of the proof of Theorem 1: Step 1: Set up a finite

Yoshida, Nobuo

207

SRP - PowerWise Business Solutions Energy Efficiency Rebate Program...  

Open Energy Info (EERE)

is designed to help architects, engineering professionals and building owners optimize energy savings within commercial new construction projects. To participate, facilities must...

208

SRP - PowerWise Business Solutions Energy Efficiency Rebate Program...  

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

ton, depending on efficiency of the installed unit VFDs: 55 per hp on controlled HVAC fan and pump motors Refrigeration Measures: Varies widely by application ECM Motors...

209

Burbank Water & Power - Energy Solutions Business Rebate Program...  

Open Energy Info (EERE)

Low Emission Development Strategies Oil & Gas Smart Grid Solar U.S. OpenLabs Utilities Water Wind Page Actions View form View source History View New Pages Recent Changes All...

210

Glendale Water and Power - Solar Solutions Program (California...  

Open Energy Info (EERE)

Low Emission Development Strategies Oil & Gas Smart Grid Solar U.S. OpenLabs Utilities Water Wind Page Actions View form View source History View New Pages Recent Changes All...

211

CGLive - A Real Time Power Monitoring Solution for Enterprises  

Science Conference Proceedings (OSTI)

CGLive is a real time energy monitoring software tool that could be used to monitor and reduce energy consumption of PC's in a enterprise network environment. Working of CGLive has been tested in a lab environment and was found to be successful. Dashboard ... Keywords: Green IT, Intelligent Green IT Management, Energy audit, M2M technology, Sensor Networks, Performance Optimization, Remote monitoring

Subrahmanya VRK Rao; S. Ramesh; V. Arun Muthuraj; Karthik Sundararaman; Jinka Parthasarathi

2011-08-01T23:59:59.000Z

212

Verdant Power LLC Sustainable Energy Solutions Financial Requirements...  

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

DC PEs, PhDs, MBAs, Scientists Energy & Business Experience Leadership Ocean Renewable Energy Coalition National Hydropower Association Hydro Research Foundation Assessments TVA...

213

Space nuclear power: a strategy for tomorrow  

SciTech Connect

Energy: reliable, portable, abundant and low cost will be a most critical factor, perhaps the sine qua non, for the unfolding of man's permanent presence in space. Space-based nuclear power, in turn, is a key technology for developing such space platforms and the transportation systems necessary to service them. A strategy for meeting space power requirements is the development of a 100-kW(e) nuclear reactor system for high earth orbit missions, transportation from Shuttle orbits to geosynchronous orbit, and for outer planet exploration. The component technology for this nuclear power plant is now underway at the Los Alamos National Laboratory. As permanent settlements are established on the Moon and in space, multimegawatt power plants will be needed. This would involve different technology similar to terrestrial nuclear power plants.

Buden, D.; Angelo, J. Jr.

1981-01-01T23:59:59.000Z

214

Functionalized Polymers For Binding To Solutes In Aqueous Solutions  

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

Functionalized Polymers For Binding To Solutes In Aqueous Solutions Functionalized Polymers For Binding To Solutes In Aqueous Solutions Functionalized Polymers For Binding To Solutes In Aqueous Solutions A functionalized polymer for binding a dissolved molecule in an aqueous solution is presented. Available for thumbnail of Feynman Center (505) 665-9090 Email Functionalized Polymers For Binding To Solutes In Aqueous Solutions A functionalized polymer for binding a dissolved molecule in an aqueous solution is presented. The polymer has a backbone polymer to which one or more functional groups are covalently linked. The backbone polymer can be such polymers as polyethylenimine, polyvinylamine, polyallylamine, and polypropylamine. These polymers are generally water-soluble, but can be insoluble when cross-linked. The functional group can be for example diol

215

Green Power Network: Past National Green Power Marketing Conference  

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

Sixth National Green Power Marketing Conference Sixth National Green Power Marketing Conference Opportunity in the Midst of Uncertainty Held July 30 - August 1, 2001 in Portland, OR Please visit EPRI to download your copy of Sixth National Green Power Marketing Conference Summary (PDF 8.8 MB) Conference speakers reviewed the past year's green power highlights, analyzed utility green pricing programs, presented insights into how to target green power demand, examined green certificate trading and tracking mechanisms, and described the best ways to market and sell green power. In addition, First Annual Green Power Leadership Awards were presented to recognize those who are significantly advancing the development of renewable electricity sources in the marketplace. We thank the following conference sponsors: the Center for Resource Solutions, Enron Power Marketing, Inc., E Source, Green Mountain Energy Company, and PacifiCorp Power Marketing, Inc. Event sponsors included PG&E National Energy Group, Portland General Electric, Batdorf & Bronson Coffee Roasters, Fetzer Vineyards, and New Belgium Brewing Company

216

HOMOGENEOUS NUCLEAR POWER REACTOR  

DOE Patents (OSTI)

A homogeneous nuclear power reactor utilizing forced circulation of the liquid fuel is described. The reactor does not require fuel handling outside of the reactor vessel during any normal operation including complete shutdown to room temperature, the reactor being selfregulating under extreme operating conditions and controlled by the thermal expansion of the liquid fuel. The liquid fuel utilized is a uranium, phosphoric acid, and water solution which requires no gus exhaust system or independent gas recombining system, thereby eliminating the handling of radioiytic gas.

King, L.D.P.

1959-09-01T23:59:59.000Z

217

Advanced Fusion Reactors for Space Propulsion and Power Systems  

SciTech Connect

In recent years the methodology proposed for conversion of light elements into energy via fusion has made steady progress. Scientific studies and engineering efforts in advanced fusion systems designs have introduced some new concepts with unique aspects including consideration of Aneutronic fuels. The plant parameters for harnessing aneutronic fusion appear more exigent than those required for the conventional fusion fuel cycle. However aneutronic fusion propulsion plants for Space deployment will ultimately offer the possibility of enhanced performance from nuclear gain as compared to existing ionic engines as well as providing a clean solution to Planetary Protection considerations and requirements. Proton triggered 11Boron fuel (p- 11B) will produce abundant ion kinetic energy for In-Space vectored thrust. Thus energetic alpha particles' exhaust momentum can be used directly to produce high Isp thrust and also offer possibility of power conversion into electricity. p-11B is an advanced fusion plant fuel with well understood reaction kinematics but will require some new conceptual thinking as to the most effective implementation.

Chapman, John J.

2011-06-15T23:59:59.000Z

218

PowerPoint Presentation  

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

Addressing the Environmental Addressing the Environmental Impacts of the Power Sector 2011 EIA Energy Conference April 26, 2011 Sam Napolitano U.S. EPA Context * EPA has recently proposed regulations governing air emissions, coal ash handling, and cooling water intakes for power plants. * The regulations address years of uncertainty (in some cases decades) and are designed to address harmful pollution and other impacts under existing law and mandates established by Congress. * Several rules respond to Court direction. * The overall goal is to provide positive environmental outcomes for the public and provide industry with greater certainty using common sense and flexible solutions that are reasonable and achievable. * The benefits to public health are very substantial. For instance, air

219

Power Projects  

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

Power Projects Power Projects Contact SN Customers Environmental Review-NEPA Operations & Maintenance Planning & Projects Power Marketing Rates You are here: SN Home page > About SNR Power Projects Central Valley: In California's Central Valley, 18 dams create reservoirs that can store 13 million acre-feet of water. The project's 615 miles of canals irrigate an area 400 miles long and 45 miles wide--almost one third of California. Powerplants at the dams have an installed capacity of 2,099 megawatts and provide enough energy for 650,000 people. Transmission lines total about 865 circuit-miles. Washoe: This project in west-central Nevada and east-central California was designed to improve the regulation of runoff from the Truckee and Carson river systems and to provide supplemental irrigation water and drainage, as well as water for municipal, industrial and fishery use. The project's Stampede Powerplant has a maximum capacity of 4 MW.

220

Southern Company Services, Power Systems Development Facility  

E-Print Network (OSTI)

Lignite coal presents opportunities as well as challenges as a feedstock for an integrated gasification combined cycle power plant. It is relatively inexpensive, easily accessible for mining, highly reactive and thus readily converted to syngas, and it is abundantaccounting for nine percent of demonstrated U.S. coal reserves (EIA, 2007). On the other hand, lignite is characterized by high moisture and ash contents and low heating value compared to higher rank coals. While these physical

Johnny Dorminey; John Northington; Roxann Leonard; Ruth Ann Yongue

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" 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

FUSION POWER PLANTS GOALS AND TECHNOLOGICAL CHALLENGES  

E-Print Network (OSTI)

and coolant. Lithium eutectic compounds such as lithium-lead (Li17Pb83), aqueous solutions of lithium salts groups have an aver- sion to large power plants in their back yards. As a whole, improved power plants for a burning fusion plasma (Meade, 1996). The next large ex- perimental device is ITER (Baker, 1996) which

Najmabadi, Farrokh

222

PRE-EXPLOITATION ABUNDANCE OF TUNAS IN THE EQUATORIAL CENTRAL PACIFIC  

E-Print Network (OSTI)

PRE-EXPLOITATION ABUNDANCE OF TUNAS IN THE EQUATORIAL CENTRAL PACIFIC GARTH I. MURPHY' AND RICHARD S. SHOMURAJ ABSTRACT The tuna resources and the environment in the equatorial central Pacific were the distribution and relative abundance of tunas in relation to the en- vironment. The circulation of the waters

223

The Solar Wind Helium Abundance: Variation with Wind Speed and the Solar Cycle  

E-Print Network (OSTI)

The Solar Wind Helium Abundance: Variation with Wind Speed and the Solar Cycle Matthias R. Aellig Alamos National Lab., Los Alamos, NM 87545 Abstract We investigate the helium abundance in the solar wind of 1994 and early 2000 are analyzed. In agreement with similar work for previous solar cycles, we find

Richardson, John

224

Abundance of narwhals (Monodon monoceros) on the hunting grounds in Greenland  

E-Print Network (OSTI)

. The scientific advice relies heavily on extensive aerial surveys that are the only feasible way to acquire data caused by global warming. This study analyzed data from aerial sighting surveys covering four major on narwhal abundance. DOI: 10.1644/ 09-MAMM-A-198.1. Key words: abundance estimation, aerial survey, Arctic

Laidre, Kristin L.

225

Power supply design for Hadron Facility  

DOE Green Energy (OSTI)

Recently, a study investigated the feasibility of building a large 60 GeV, kaon factory accelerator. This paper presents the conceptual design of the magnet power supplies and energy storage system. In this study the following three systems were investigated: (a) power supply using storage generator; (b) power supply using inductive storage device; and (c) resonant power supplies. These systems were analyzed from both technical and economical points of view. It was found that all three systems are feasible and can be built using commercially available components. From a technical point of view, the system using inductive storage is the most advantageous. The resonant power supply is the most economical solution.

Karady, G.; Kansog, J.; Thiessen, H.A.; Schneider, E.

1987-01-01T23:59:59.000Z

226

Custom Power Primer Version 1.0  

Science Conference Proceedings (OSTI)

Voltage sags, momentary interruptions, harmonic distortion, and voltage flicker are among the most common power quality variations affecting industrial and commercial end-users. Solving these problems will require a great deal of cooperation. This report focuses on devices that are classified as custom power solutions. For voltage sag, swell, and interruption mitigation, the following custom power controllers are examined: static series compensator (SSC) devices, static voltage regulator (SVR) devices, b...

1999-12-01T23:59:59.000Z

227

Power Quality Improvement Methodology for Wires Companies  

Science Conference Proceedings (OSTI)

This report provides practical utility-side strategies for improving power quality. Much research has been done on the application of custom power devices to mitigate power quality events on transmission and distribution wires systems. However, these solutions can be costly and often benefit a limited number of customers. Many wires companies are looking for ways to improve the overall quality of their service using methods and equipment that are more traditional.

2003-02-11T23:59:59.000Z

228

TAPA: Temperature aware power allocation in data center with Map-Reduce  

Science Conference Proceedings (OSTI)

In this paper, we analytically derive, implement, and empirically evaluate a solution for maximizing the execution rate of Map-Reduce jobs subject to power constraints in data centers. Our solution is novel in that it takes into account the dependence ... Keywords: DVFS solution, temperature aware power allocation, data center, Map-Reduce, execution rate, power constraints, power consumption, leakage current, fan speed, optimization strategy, Hadoop, 13-machine cluster

Shen Li; T. Abdelzaher; Mindi Yuan

2011-07-01T23:59:59.000Z

229

Green Power Network: Green Power Marketing  

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

to main content U.S. Department of Energy Energy Efficiency and Renewable Energy Green Power Network About the GPN Green Power Markets Buying Green Power Onsite Renewable...

230

Post-refinement multiscale method for pin power reconstruction  

SciTech Connect

The ability to accurately predict local pin powers in nuclear reactors is necessary to understand the mechanisms that cause fuel pin failure during steady state and transient operation. In the research presented here, methods are developed to improve the local solution using high order methods with boundary conditions from a low order global solution. Several different core configurations were tested to determine the improvement in the local pin powers compared to the standard techniques based on diffusion theory and pin power reconstruction (PPR). The post-refinement multiscale methods use the global solution to determine boundary conditions for the local solution. The local solution is solved using either a fixed boundary source or an albedo boundary condition; this solution is 'post-refinement' and thus has no impact on the global solution. (authors)

Collins, B.; Seker, V.; Downar, T. [Dept. of Nuclear Engineering and Radiological Sciences, Univ. of Michigan, 2355 Bonisteel Blvd., Ann Arbor, MI 48109 (United States); Xu, Y. [Argonne National Laboratory (United States)

2012-07-01T23:59:59.000Z

231

Power inverters  

DOE Patents (OSTI)

Power inverters include a frame and a power module. The frame has a sidewall including an opening and defining a fluid passageway. The power module is coupled to the frame over the opening and includes a substrate, die, and an encasement. The substrate includes a first side, a second side, a center, an outer periphery, and an outer edge, and the first side of the substrate comprises a first outer layer including a metal material. The die are positioned in the substrate center and are coupled to the substrate first side. The encasement is molded over the outer periphery on the substrate first side, the substrate second side, and the substrate outer edge and around the die. The encasement, coupled to the substrate, forms a seal with the metal material. The second side of the substrate is positioned to directly contact a fluid flowing through the fluid passageway.

Miller, David H. (Redondo Beach, CA); Korich, Mark D. (Chino Hills, CA); Smith, Gregory S. (Woodland Hills, CA)

2011-11-15T23:59:59.000Z

232

Financing Solar Thermal Power Plants  

DOE Green Energy (OSTI)

The commercialization of concentrating solar power technology took a major step forward in the mid 1980s and early 1990s with the development of the SEGS plants in California. Over the years they have proven that parabolic trough power technologies are the most cost-effective approach for commercial scale solar power generation in the sunbelt countries of the world. However, the question must be asked why no additional solar power plants have been build following the bankruptcy of the developer of the SEGS projects, LUZ International Limited. Although many believe the SEGS projects were a success as a result of parabolic trough technology they employ, in truth, the SEGS projects were developed simply because they represented an attractive opportunity for investors. Simply stated, no additional projects have been developed because no one has been able to put together a similarly attractive financial package to potential investors. More than $1.2 billion in private capital was raised i n debt and equity financing for the nine SEGS plants. Investors and bankers who make these investments are the real clients for solar power technologies. They are not interested in annual solar to electric efficiencies, but in risk, return on investments, and coverage ratios. This paper will take a look at solar power projects from the financier's perspective. The challenge in moving forward is to attract private investors, commercial lenders, and international development agencies and to find innovative solutions to the difficult issues that investment in the global power market poses for solar power technologies.

Price, H. W.; Kistner, R.

1999-11-01T23:59:59.000Z

233

Rotation and chemical abundances of Ap/Bp stars in the open cluster NGC 6475  

E-Print Network (OSTI)

The connection between age, rotation and chemical abundance of magnetic Ap stars is poorly understood. Using open clusters, we are able to study samples of stars that are both co-eval and co-environmental. By determining rotation and chemical abundance for Ap star members of clusters with various ages, the variations of these properties as a function of age and environment can be derived. All four probable Ap star members of the open cluster NGC 6475, as well as one normal late B star, were studied using detailed spectrum synthesis of high resolution UVES-POP spectra. Probable cluster membership was confirmed for all five stars, however chemical abundance anomalies only appear to be present in spectra of three. Projected rotational velocity and chemical abundances for 21 elements ranging from C to Eu are presented for the 5 stars. In the three peculiar stars we find overabundances of Si, Cr, Mn, Fe and rare earths such as Nd, characteristic of Ap stars. The set of chemically peculiar stars show fairly homogeneous abundance tables, however notable differences exist for a few elements. There also exist appreciable differences in the v sin i and main sequence evolutionary stage of the chemically peculiar stars. This may hint at the underlying processes giving rise to the observed abundance anomalies. With this first detailed study of chemical abundances of a complete sample of magnetic Ap/Bp stars in an open cluster, we have initiated an exploration of the environmental and evolutionary influence on chemical peculiarity.

C. P. Folsom; G. A. Wade; S. Bagnulo; J. D. Landstreet

2006-12-11T23:59:59.000Z

234

Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. |  

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

Power Right. Power Smart. Efficient Computer Power Supplies and Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. March 10, 2009 - 6:00am Addthis John Lippert Power supplies convert the AC power that you get from your electric company into the DC power consumed by most electronics, including your computer. We expect our power supplies to be safe, reliable, and durable. If they meet those criteria, then they're all alike, except for cost, right? Well, not exactly. You see, there's one other important feature that sets them apart: efficiency. And I don't know about you, but I believe waste is bad. For me, high efficiency is one important feature that's needed for something to be high quality. So isn't it ridiculous that most power

235

Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. |  

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

Power Right. Power Smart. Efficient Computer Power Supplies and Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. Power Right. Power Smart. Efficient Computer Power Supplies and Monitors. March 10, 2009 - 6:00am Addthis John Lippert Power supplies convert the AC power that you get from your electric company into the DC power consumed by most electronics, including your computer. We expect our power supplies to be safe, reliable, and durable. If they meet those criteria, then they're all alike, except for cost, right? Well, not exactly. You see, there's one other important feature that sets them apart: efficiency. And I don't know about you, but I believe waste is bad. For me, high efficiency is one important feature that's needed for something to be high quality. So isn't it ridiculous that most power

236

The chemical abundance of the very metal rich old Open Clusters NGC 6253 and NGC 6791  

E-Print Network (OSTI)

In the framework of a project aiming at deriving in a homogeneous way the properties (age, distance, reddening and detailed chemical abundances) of a large sample of old open clusters, we present here the metal abundance and the abundance ratios of light (C, N, O, Na, Mg, Al, Si, Ca, Ti) and heavier (Cr, Mn, Ni, Ba, Eu) elements in the galactic open clusters NGC 6253 and NGC 6791. We performed spectrum synthesis of selected lines on high resolution spectra of four red clump stars in NGC 6253, taken with the UVES and FEROS spectrographs. We also determined abundances of the same elements for four red clump stars in NGC 6791, observed with SARG, for which we had derived the atmospheric parameters and the iron, carbon and oxygen abundances in a previous paper (Gratton et al. 2006). The average metallicity of NGC 6253 is [Fe/H]=+0.46 (rms = 0.03 dex, systematic error = 0.08 dex), obtained by extensive spectral synthesis of Fe lines. This intermediate age cluster closely resembles the old open cluster NGC 6791, as far as the chemical composition is concerned. C, N, O do not show any significant abundance scatter; they are underabundant with respect to the solar values both in NGC 6253 and NGC 6791. We also find no evident star-to-star scatter in any of the elements measured in both clusters, with the possible exception of Na in NGC 6791. The two clusters show very similar abundances, except for Mg, overabundant in NGC 6791 and not in NGC 6253. Both have solar scaled alpha-elements abundances. We have compared our abundance ratios with literature values for disk giants and dwarfs and bulge giants, finding a general good agreement with the run of elemental ratios with [Fe/H] of disk objects.

Eugenio Carretta; Angela Bragaglia; Raffaele Gratton

2007-06-19T23:59:59.000Z

237

Smart Office Energy Solutions | Open Energy Information  

Open Energy Info (EERE)

Office Energy Solutions Office Energy Solutions Jump to: navigation, search Logo: Smart Office Energy Solutions Name Smart Office Energy Solutions Address 440 Louisiana Street Place Houston, Texas Zip 77002 Sector Buildings, Efficiency, Services Product wireless smart meters, Web-managed power sockets, and behavioral software Year founded 2009 Number of employees 1-10 Website http://smartoes.com Coordinates 29.762937°, -95.364652° 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":29.762937,"lon":-95.364652,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

238

Power Supplies  

Science Conference Proceedings (OSTI)

Table 2   Characteristics of the four major power sources for induction heating...state 180 Hz to 50 kHz 1 kW to 2 MW 75??95 No standby current; high efficiency; no moving parts;

239

DEVELOPMENT Solutions | Open Energy Information  

Open Energy Info (EERE)

DEVELOPMENT Solutions DEVELOPMENT Solutions Jump to: navigation, search Name DEVELOPMENT Solutions Place Reading, England, United Kingdom Zip RG4 8UJ Sector Efficiency Product DEVELOPMENT Solutions (DS) supports investors to realise projects with sustainable applications, including in the areas of environment, energy efficiency, water resource management and other applications for sustainable development. References DEVELOPMENT Solutions[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. DEVELOPMENT Solutions is a company located in Reading, England, United Kingdom . References ↑ "DEVELOPMENT Solutions" Retrieved from "http://en.openei.org/w/index.php?title=DEVELOPMENT_Solutions&oldid=344207

240

PowerPoint Presentation  

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

future where energy is clean, abundant, reliable, and affordable Less dependence on Foreign oil, and eventual transition to an emissions-free, petroleum-free vehicle Fleet...

Note: This page contains sample records for the topic "abundant power solutions" 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

Solar powered desalination.  

E-Print Network (OSTI)

??Despite water being apparently abundant, up to half of the worlds population is faced with water crises which is growing at an alarming rate most (more)

Mayere, Abdulkarim

2011-01-01T23:59:59.000Z

242

Suppressant:Water & Aqueous Solutions  

Science Conference Proceedings (OSTI)

Suppressant:Water & Aqueous Solutions. ... Reuther, JJ; 1991. Fine Water Sprays for Fire Protection: A Halon Replacement Option.. ...

2011-10-28T23:59:59.000Z

243

Savannah River Nuclear Solutions LLC  

Savannah River Nuclear Solutions LLC Permission to Publish KNOW ALL MEN BY THESE PRESENTS, that the undersigned (hereinafter referred to

244

Review: Greenhouse Solutions with Sustainable Energy  

E-Print Network (OSTI)

Solutions with Sustainable Energy By Mark DiesendorfSolutions with Sustainable Energy. Sydney, NSW: University

Hamilton-Smith, Elery

2009-01-01T23:59:59.000Z

245

Discontinuous bifurcations of periodic solutions  

Science Conference Proceedings (OSTI)

This paper discusses different aspects of bifurcations of periodic solutions in discontinuous systems. It is explained how jumps in the fundamental solution matrix lead to jumps of the Floquet multipliers of periodic solutions. A Floquet multiplier of ... Keywords: Bifurcation, Discontinuous, Dry friction, Stick-slip

R. I. Leine; D. H. Van Campen

2002-08-01T23:59:59.000Z

246

Integrating Variable Renewable Energy: Challenges and Solutions  

SciTech Connect

In the U.S., a number of utilities are adopting higher penetrations of renewables, driven in part by state policies. While power systems have been designed to handle the variable nature of loads, the additional supply-side variability and uncertainty can pose new challenges for utilities and system operators. However, a variety of operational and technical solutions exist to help integrate higher penetrations of wind and solar generation. This paper explores renewable energy integration challenges and mitigation strategies that have been implemented in the U.S. and internationally, including forecasting, demand response, flexible generation, larger balancing areas or balancing area cooperation, and operational practices such as fast scheduling and dispatch.

Bird, L.; Milligan, M.; Lew, D.

2013-09-01T23:59:59.000Z

247

Savannah River Nuclear Solutions awards family scholarships | National  

National Nuclear Security Administration (NNSA)

Savannah River Nuclear Solutions awards family scholarships | National Savannah River Nuclear Solutions awards family scholarships | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Savannah River Nuclear Solutions awards family scholarships Savannah River Nuclear Solutions awards family scholarships Posted By Office of Public Affairs Savannah River Nuclear Solutions awards family scholarships

248

Attractor solutions in Lorentz violating scalar-vector-tensor theory  

SciTech Connect

We investigate properties of attractors for the scalar field in the Lorentz violating scalar-vector-tensor theory of gravity. In this framework, both the effective coupling and potential functions determine the stabilities of the fixed points. In the model, we consider the constants of the slope of the effective coupling and potential functions which lead to the quadratic effective coupling vector with the (inverse) power-law potential. For the case of a purely scalar field, there are only two stable attractor solutions in the inflationary scenario. In the presence of a barotropic fluid, the fluid dominated solution is absent. We find two scaling solutions: the kinetic scaling solution and the scalar field scaling solutions. We show the stable attractors in regions of ({gamma},{xi}) parameter space and in a phase plane plot for different qualitative evolutions. From the standard nucleosynthesis, we derive the constraints for the value of the coupling parameter.

Arianto [Theoretical Physics Laboratory, THEPI Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10 Bandung 40132 (Indonesia); Indonesia Center for Theoretical and Mathematical Physics (ICTMP), Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung 40132 (Indonesia); Department of Physics, Udayana University, Jl. Kampus Bukit Jimbaran Kuta-Bali 80361 (Indonesia); Zen, Freddy P.; Triyanta; Gunara, Bobby E. [Theoretical Physics Laboratory, THEPI Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10 Bandung 40132 (Indonesia); Indonesia Center for Theoretical and Mathematical Physics (ICTMP), Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung 40132 (Indonesia)

2008-06-15T23:59:59.000Z

249

Texas-New Mexico Power Company - Nonresidential Energy Efficiency Standard  

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

Texas-New Mexico Power Company - Nonresidential Energy Efficiency Texas-New Mexico Power Company - Nonresidential Energy Efficiency Standard Offer Program Texas-New Mexico Power Company - Nonresidential Energy Efficiency Standard Offer Program < Back Eligibility Commercial Industrial Institutional Local Government Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Home Weatherization Construction Commercial Weatherization Design & Remodeling Other Heat Pumps Appliances & Electronics Commercial Lighting Lighting Insulation Program Info State Texas Program Type Utility Rebate Program Rebate Amount Commercial Solutions, SCORE, and CitySmart Peak Energy Reduction Standard Offer: $165/kW Provider Texas New Mexico Power Texas-New Mexico Power's Commercial Solutions Program provides incentives

250

Looking for Energy Solutions  

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

Governments and Schools: Governments and Schools: Looking for Energy Solutions Turn to an ENERGY STAR ® Service and Product Provider Partner ENERGY STAR Service and Product Providers (SPPs) have the experience and access to the tools needed to implement energy- efficient strategies that are right for you. Following the U.S. Environmental Protection Agency's (EPA) Guidelines for Energy Management, a proven strategy developed from ENERGY STAR partner successes, your organization can gain control of energy expenses and demonstrate environmental leadership. SPPs can help you assess your energy performance and recommend low-cost upgrades, cost-effective investments, and longer-term strategies that make the most sense for you. ENERGY STAR SPPs make it easy for you to care for your constituents, your facilities, and your finances.

251

Stellar abundances and ages for metal-rich Milky Way globular clusters - Stellar parameters and elemental abundances for 9 HB stars in NGC6352  

E-Print Network (OSTI)

[ABRIDGED] Metal-rich globular clusters provide important tracers of the formation of our Galaxy. Moreover, and not less important, they are very important calibrators for the derivation of properties of extra-galactic metal-rich stellar populations. Nonetheless, only a few of the metal-rich globular clusters in the Milky Way have been studied using high-resolution stellar spectra to derive elemental abundances. In this paper we present elemental abundances for nine HB stars in the metal-rich globular cluster NGC6352. The elemental abundances are based on high-resolution, high signal-to-noise spectra obtained with VLT/UVES. The elemental abundances have been derived using standard LTE calculations. We find that NGC6352 has [Fe/H]= -0.55, is enhanced in the alpha-elements to about +0.2 dex for Ca, Si, and Ti relative to Fe. For the iron-peak elements we find solar values. Based on the spectroscopically derived stellar parameters we find that an E(B-V)=0.24 and (m-M) roughly equal to 14.05 better fits the data ...

Feltzing, S; Johnson, R A

2008-01-01T23:59:59.000Z

252

Power superconducting power transmission cable  

DOE Patents (OSTI)

The present invention is for a compact superconducting power transmission cable operating at distribution level voltages. The superconducting cable is a conductor with a number of tapes assembled into a subconductor. These conductors are then mounted co-planarly in an elongated dielectric to produce a 3-phase cable. The arrangement increases the magnetic field parallel to the tapes thereby reducing ac losses.

Ashworth, Stephen P. (Cambridge, GB)

2003-01-01T23:59:59.000Z

253

SUMMARY OF HRE-2 RUN 13 (INITIAL POWER OPERATION)  

SciTech Connect

The first power operation of the HRE-2, referred to as Run 13, occurred in February 1958. In five days of power operation, the maximum sustained power was 1.5 Mw and the total power generated was 4B Mw-hr. During the first part of the power operation, the fuel solution contained very little internal recombination catalyst. This part of the run was characterized by high concentrations of radiolytic gas and significant loss of reactivity at very low powers. After an addition of copper and acid, reactivity losses were observed only nt higher powers. Power operation was terminated after samples showed high nickel concentrations in the fuel solution, indicating a very high stainless steel corrosion rate. Subsequent subcritical operation ended because of power wiring insulation failures. (auth)

Engel, J.R.; Haubenreich, P.N.; Hernandez-Fragoso, J.; Richardson, D.M.

1958-10-29T23:59:59.000Z

254

Earth abundant materials for high efficiency heterojunction thin film solar cells  

E-Print Network (OSTI)

We investigate earth abundant materials for thin-film solar cells that can meet tens of terawatts level deployment potential. Candidate materials are identified by combinatorial search, large-scale electronic structure ...

Buonassisi, Tonio

255

Using Cepheids to determine the galactic abundance gradient I. The solar neighbourhood  

E-Print Network (OSTI)

A number of studies of abundance gradients in the galactic disk have been performed in recent years. The results obtained are rather disparate: from no detectable gradient to a rather significant slope of about -0.1 dex kpc -1. The present study concerns the abundance gradient based on the spectroscopic analysis of a sample of classical Cepheids. These stars enable one to obtain reliable abundances of a variety of chemical elements. Additionally, they have well determined distances which allow an accurate determination of abundance distributions in the galactic disc. Using 236 high resolution spectra of 77 galactic Cepheids, the radial elemental distribution in the galactic disc between galactocentric distances in the range 6-11 kpc has been investigated. Gradients for 25 chemical elements (from carbon to gadolinium) are derived...

S. M. Andrievsky; V. V. Kovtyukh; R. E. Luck; J. R. D. Lepine; D. Bersier; W. J. Maciel; B. Barbuy; V. G. Klochkova; V. E. Panchuk; R. U. Karpischek

2001-12-21T23:59:59.000Z

256

Nuclear Power  

E-Print Network (OSTI)

The world of the twenty first century is an energy consuming society. Due to increasing population and living standards, each year the world requires more energy and new efficient systems for delivering it. Furthermore, the new systems must be inherently safe and environmentally benign. These realities of today's world are among the reasons that lead to serious interest in deploying nuclear power as a sustainable energy source. Today's nuclear reactors are safe and highly efficient energy systems that offer electricity and a multitude of co-generation energy products ranging from potable water to heat for industrial applications. The goal of the book is to show the current state-of-the-art in the covered technical areas as well as to demonstrate how general engineering principles and methods can be applied to nuclear power systems.

Tsvetkov, Pavel

2010-08-01T23:59:59.000Z

257

Proceedings of Power Quality Applications 2003: North America  

SciTech Connect

EPRI's Power Quality Applications (PQA) 2003: North America Conference and Exhibition took place on June 2 to 4, 2003 at the Monterey Plaza Hotel in Monterey, California. The conference featured an exhibition of power quality equipment and solutions for power producers and their customers. This CD contains the proceedings of that conference.

2003-06-01T23:59:59.000Z

258

Power supply  

SciTech Connect

An electric power supply employs a striking means to initiate ferroelectric elements which provide electrical energy output which subsequently initiates an explosive charge which initiates a second ferroelectric current generator to deliver current to the coil of a magnetic field current generator, creating a magnetic field around the coil. Continued detonation effects compression of the magnetic field and subsequent generation and delivery of a large output current to appropriate output loads.

Hart, Edward J. (Albuquerque, NM); Leeman, James E. (Albuquerque, NM); MacDougall, Hugh R. (Albuquerque, NM); Marron, John J. (Albuquerque, NM); Smith, Calvin C. (Amarillo, TX)

1976-01-01T23:59:59.000Z

259

USING THE X-RAY EMISSION LINES OF SEYFERT 2 AGN TO MEASURE ABUNDANCE RATIOS  

E-Print Network (OSTI)

We measure the metal abundance ratios in the X-ray photoionized gas located near the narrow line region of a sample of Seyfert 2 AGN. The high-resolution X-ray spectra observed with the Chandra high- and low-energy transmission grating spectrometers are compared with models of the resonant scattering and recombination emission from a plasma in thermal balance, and with multiple temperature zones. The abundance ratios in the sample are close to the Solar values, with slight over-abundances of N in NGC 1068, and of Ne in NGC 4151. Our X-ray spectral models use fewer degrees of freedom than previous works. Motivation. Our goal is to use X-ray abundance measurements to cross-calibrate with the optical spectra of quasars. These optical spectra are used to measure the star formation history of the early Universe. 1 To Determine the Abundance Ratios, we fit the Seyfert 2 spectra with models of photoionized plasmas, and then search for deviations in the data from Solar abundances, as shown in Fig. 1. The fluxes of radiative recombination continuum (RRC) features and the radiative recombination (RR) forbidden lines depend little on radiation transfer effects, so they are the most reliable abundance indicators. At low continuum optical depths, the recombination emission flux scales linearly with abundances. Our model allows us to fit the RRC and RR fluxes by accounting for the broad ionization distribution in the plasma. X-ray Emission Line Model. We model a photoionized plasma in ionization equilibrium and thermal balance with a grid of zones, each with ionization parameter log ? = 1.0, 1.5,...4.5 (in c.g.s. units). The XSTAR plasma code yields the charge state distribution of each zone. 2 In order to calculate the recombination emission, we use the photoelectric cross sections

Mario A. Jimenez-garate; Toan Khu

2004-01-01T23:59:59.000Z

260

Power Search  

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

You are here: Find a Car Home > Power Search You are here: Find a Car Home > Power Search Power Search Expand any feature by selecting its title bar. Choose as many or as few features as you like. Model Year From: 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 To: 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 MSRP Under $15,000 $15,000-$20,000 $20,000-$25,000 $25,000-$30,000 $30,000-$35,000 $35,000-$40,000 $40,000-$45,000 $45,000-$50,000 $50,000-$55,000 $55,000-$60,000 $60,000-$65,000 $65,000-$70,000 $70,000-$75,000 $75,000-$80,000 $80,000-$85,000 Over $85,000 - OR - Minimum: Select... $5,000 $6,000 $7,000 $8,000 $9,000 $10,000 $11,000

Note: This page contains sample records for the topic "abundant power solutions" 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

O and Na abundance patterns in open clusters of the Galactic disk  

E-Print Network (OSTI)

Aims. A global O-Na abundance anti-correlation is observed in globular clusters, which is not present in the Galactic field population. Open clusters are thought to be chemically homogeneous internally. We aim to explore the O and Na abundance pattern among the open cluster population of the Galactic disk. Methods. We combine open cluster abundance ratios of O and Na from high-resolution spectroscopic studies in the literature and normalize them to a common solar scale. We compare the open cluster abundances against the globular clusters and disk field. Results. We find that the different environments show different abundance patterns. The open clusters do not show the O-Na anti-correlation at the extreme O-depletion / Na-enhancement as observed in globular clusters. Furthermore, the high Na abundances in open clusters do not match the disk field stars. If real, it may be suggesting that the dissolution of present-day open clusters is not a significant contribution to building the Galactic disk. Large-scale h...

De Silva, G M; Lattanzio, J; Asplund, M; 10.1051/0004-6361/200912279

2009-01-01T23:59:59.000Z

262

A New Look At Carbon Abundances In Planetary Nebulae. IV. Implications For Stellar Nucleosynthesis  

E-Print Network (OSTI)

This paper is the fourth and final report on a project designed to study carbon abundances in a sample of planetary nebulae representing a broad range in progenitor mass and metallicity. We present newly acquired optical spectrophotometric data for three Galactic planetary nebulae IC 418, NGC 2392, and NGC 3242 and combine them with UV data from the IUE Final Archive for identical positions in each nebula to determine accurate abundances of He, C, N, O, and Ne at one or more locations in each object. We then collect abundances of these elements for the entire sample and compare them with theoretical predictions of planetary nebula abundances from a grid of intermediate mass star models. We find some consistency between observations and theory, lending modest support to our current understanding of nucleosynthesis in stars below 8 M_o in birth mass. Overall, we believe that observed abundances agree with theoretical predictions to well within an order of magnitude but probably not better than within a factor of 2 or 3. But even this level of consistency between observation and theory enhances the validity of published intermediate-mass stellar yields of carbon and nitrogen in the study of the abundance evolution of these elements.

R. B. C. Henry; K. B. Kwitter; J. A. Bates

1999-10-19T23:59:59.000Z

263

Lithium Abundances in Wide Binaries with Solar-Type Twin Components  

E-Print Network (OSTI)

We present high-resolution spectroscopic observations of the \\ion{Li}{1} resonance line in a sample of 62 stars that belong to 31 common-proper motion pairs with twin F or G-type components. Photospheric abundances of lithium were derived by spectral synthesis analysis. For seven of the pairs, we have measured large lithium abundance differences. Eleven other pairs have components with similar lithium abundances. We cannot determine if the remaining 13 pairs have lithium differences because we did not detect the \\ion{Li}{1} lines, and hence we can only provide upper limits to the abundances of both stars. Our results demonstrate that twin stars do not always share the same lithium abundances. Lithium depletion in solar-type stars does not only depend on age, mass, and metallicity. This result is consistent with the spread in lithium abundances among solar-type stars in the solar-age open cluster M67. Our stars are brighter than the M67 members of similar spectral type, making them good targets for detailed fo...

Martn, E L; Pavlenko, Ya V; Lyubchik, Y; Martin, Eduardo L.; Basri, Gibor; Pavlenko, Yakiv; Lyubchik, Yuri

2002-01-01T23:59:59.000Z

264

Lithium Abundances in Wide Binaries with Solar-Type Twin Components  

E-Print Network (OSTI)

We present high-resolution spectroscopic observations of the \\ion{Li}{1} resonance line in a sample of 62 stars that belong to 31 common-proper motion pairs with twin F or G-type components. Photospheric abundances of lithium were derived by spectral synthesis analysis. For seven of the pairs, we have measured large lithium abundance differences. Eleven other pairs have components with similar lithium abundances. We cannot determine if the remaining 13 pairs have lithium differences because we did not detect the \\ion{Li}{1} lines, and hence we can only provide upper limits to the abundances of both stars. Our results demonstrate that twin stars do not always share the same lithium abundances. Lithium depletion in solar-type stars does not only depend on age, mass, and metallicity. This result is consistent with the spread in lithium abundances among solar-type stars in the solar-age open cluster M67. Our stars are brighter than the M67 members of similar spectral type, making them good targets for detailed follow-up studies that could shed light on the elusive mechanism responsible for the depletion of lithium during the main-sequence evolution of the Sun and solar-type stars.

Eduardo L. Martin; Gibor Basri; Yakiv Pavlenko; Yuri Lyubchik

2002-06-27T23:59:59.000Z

265

Power Electronics Symposium 2011 | ornl.gov  

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

Power Electronics Symposium 2011 Power Electronics Symposium 2011 Jul 22 2011 12:00 AM - 05:00 AM What can a power electronics research center do for your business? Oak Ridge, TN Oak Ridge National Laboratory CONTACT : Email: David Sims Phone:(865) 241-3808 Add to Calendar SHARE What can a power electronics research center do for your business? Oak Ridge National Laboratory's Power Electronics Symposium Friday, July 22, 7:30 AM - 3:30 PM (EDT) Oak Ridge National Laboratory (ORNL) Conference Center, Oak Ridge, Tennessee AGENDA This symposium is to inform industry and entrepreneurs of the capabilities, expertise, technologies, and opportunities available through ORNL's Power Electronics and Electrical Power Systems Research Center (PEEPSRC) for creation of solutions to existing problems and/or development of new

266

CRSP Power Marketing and Contracts default  

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

Financial Data Environmental Review-NEPA Operations Planning & Projects Power Marketing Rates Financial Data Environmental Review-NEPA Operations Planning & Projects Power Marketing Rates CRSP's Marketing Service Area Power Marketing As a marketer of Federal power, Colorado River Storage Project Management Center's Power Marketing staff provides a variety of services for customers and the utility industry, including long term power purchases and transmission contracts. Energy Services Power Allocations FY2009 & After Current Customer Seasonal Summary (pdf) FY2009 & After New Customer Seasonal Summary (pdf) Post 2004 SHP Energy Determination Documents and Meeting Handouts Customer Meetings & Rate Adjustment Schedule For Long-Term Solution (pdf) GC Lake Elevations Graph - 8/2003 Hydrology Study (pdf) Generation Forecast Graph - 8/2003 Hydrology Study(pdf)

267

Neutron Capture Rates near A=130 which Effect a Global Change to the r-Process Abundance Distribution  

Science Conference Proceedings (OSTI)

We investigate the impact of neutron capture rates near the A=130 peak on the r-process abundance pattern. We show that these capture rates can alter the abundances of individual nuclear species, not only in the region of A=130 peak but also throughout the abundance pattern. We discuss in general the nonequilibrium processes that produce these abundance changes and determine which capture rates have the most significant impact.

Surman, Rebecca [Union College; Beun, Joshua [North Carolina State University; Mclaughlin, Gail C [North Carolina State University; Hix, William Raphael [ORNL

2009-01-01T23:59:59.000Z

268

Neutron Capture Rates near A=130 which Effect a Global Change to the r-Process Abundance Distribution  

E-Print Network (OSTI)

We investigate the impact of neutron capture rates near the A=130 peak on the $r$-process abundance pattern. We show that these capture rates can alter the abundances of individual nuclear species, not only in the region of A=130 peak, but also throughout the abundance pattern. We discuss the nonequilibrium processes that produce these abundance changes and determine which capture rates have the most significant impact.

R. Surman; J. Beun; G. C. McLaughlin; W. R. Hix

2008-06-23T23:59:59.000Z

269

Advanced power systems featuring a closely coupled catalytic gasification carbonate fuel cell plant  

DOE Green Energy (OSTI)

Pursuing the key national goal of clean and efficient uulization of the abundant domestic coal resources for power generation, a study was conducted with DOE/METC support to evaluate the potential of integrated gasification/carbonate fuel cell power generation systems. By closely coupling the fuel cell with the operation of a catalytic gasifier, the advantages of both the catalytic gasification and the high efficiency fuel cell complement each other, resulting in a power plant system with unsurpassed efficiencies approaching 55% (HHV). Low temperature catalytic gasification producing a high methane fuel gas offers the potential for high gas efficiencies by operating with minimal or no combustion. Heat required for gasification is provided by combination of recycle from the fuel cell and exothermic methanation and shift reactions. Air can be supplemented if required. In combination with internally reforming carbonate fuel cells, low temperature catalytic gasification can achieve very attractive system efficiencies while producing extremely low emissions compared to conventional plants utilizing coal. Three system configurations based on recoverable and disposable gasification catalysts were studied. Experimental tests were conducted to evaluate these gasification catalysts. The recoverable catalyst studied was potassium carbonate, and the disposable catalysts were calcium in the form of limestone and iron in the form of taconite. Reactivities of limestone and iron were lower than that of potassium, but were improved by using the catalyst in solution form. Promising results were obtained in the system evaluations as well as the experimental testing of the gasification catalysts. To realize the potential of these high efficiency power plant systems more effort is required to develop catalytic gasification systems and their integration with carbonate fuel cells.

Steinfeld, G.; Wilson, W.G.

1993-06-01T23:59:59.000Z

270

Advanced power systems featuring a closely coupled catalytic gasification carbonate fuel cell plant  

DOE Green Energy (OSTI)

Pursuing the key national goal of clean and efficient uulization of the abundant domestic coal resources for power generation, a study was conducted with DOE/METC support to evaluate the potential of integrated gasification/carbonate fuel cell power generation systems. By closely coupling the fuel cell with the operation of a catalytic gasifier, the advantages of both the catalytic gasification and the high efficiency fuel cell complement each other, resulting in a power plant system with unsurpassed efficiencies approaching 55% (HHV). Low temperature catalytic gasification producing a high methane fuel gas offers the potential for high gas efficiencies by operating with minimal or no combustion. Heat required for gasification is provided by combination of recycle from the fuel cell and exothermic methanation and shift reactions. Air can be supplemented if required. In combination with internally reforming carbonate fuel cells, low temperature catalytic gasification can achieve very attractive system efficiencies while producing extremely low emissions compared to conventional plants utilizing coal. Three system configurations based on recoverable and disposable gasification catalysts were studied. Experimental tests were conducted to evaluate these gasification catalysts. The recoverable catalyst studied was potassium carbonate, and the disposable catalysts were calcium in the form of limestone and iron in the form of taconite. Reactivities of limestone and iron were lower than that of potassium, but were improved by using the catalyst in solution form. Promising results were obtained in the system evaluations as well as the experimental testing of the gasification catalysts. To realize the potential of these high efficiency power plant systems more effort is required to develop catalytic gasification systems and their integration with carbonate fuel cells.

Steinfeld, G.; Wilson, W.G.

1993-01-01T23:59:59.000Z

271

Microgrid: A Conceptual Solution  

E-Print Network (OSTI)

Abstract Application of individual distributed generators can cause as many problems as it may solve. A better way to realize the emerging potential of distributed generation is to take a system approach which views generation and associated loads as a subsystem or a microgrid. During disturbances, the generation and corresponding loads can separate from the distribution system to isolate the microgrids load from the disturbance (providing UPS services) without harming the transmission grids integrity. This ability to island generation and loads together has a potential to provide a higher local reliability than that provided by the power system as a whole. In this model it is also critical to be able to use the waste heat by placing the sources near the heat load. This implies that a unit can be placed at any point on the electrical system as required by the location of the heat load.

Robert H. Lasseter; Paolo Piagi

2004-01-01T23:59:59.000Z

272

Village Power `97. Proceedings  

SciTech Connect

It is estimated that two billion people live without electricity and its services. In addition, there is a sizable number of rural villages that have limited electrical service, with either part-day operation by diesel gen-sets or partial electrification (local school or community center and several nearby houses). For many villages connected to the grid, power is often sporadically available and of poor quality. The U.S. National Renewable Energy Laboratory (NREL) in Golden, Colorado, has initiated a program to address these potential electricity opportunities in rural villages through the application of renewable energy (RE) technologies. The objective of this program is to develop and implement applications that demonstrate the technical performance, economic competitiveness, operational viability, and environmental benefits of renewable rural electric solutions, compared to the conventional options of line extension and isolated diesel mini-grids. These four attributes foster sustainability; therefore, the program is entitled Renewables for Sustainable Village Power (RSVP). The RSVP program is a multi-disciplinary, multi-technology, multi-application program composed of six key activities, including village application development, computer model development, systems analysis, pilot project development, technical assistance, and an Internet-based village power project database. The current program emphasizes wind, photovoltaics (PV), and their hybrids with diesel gen-sets. NREL`s RSVP team is currently involved in rural electricity projects in thirteen countries, with U.S., foreign, and internationally based agencies and institutions. This document contains reports presented at the Proceedings of Village Power, 1997. Individual projects have been processed separately for the United States Department of Energy databases.

Cardinal, J.; Flowers, L.; Taylor, R.; Weingart, J. [eds.

1997-09-01T23:59:59.000Z

273

Nonlinear modal interaction in HVDC/AC power systems with dc power modulation  

Science Conference Proceedings (OSTI)

In this paper investigation of nonlinear modal interaction using the normal form of vector fields technique is extended to HVDC/AC power systems with dc power modulation. The ac-dc interface equations are solved to form a state space model with second order approximation. Using the normal form technique, the system`s nonlinear dynamic characteristics are obtained. The proposed approach is applied to a 4-generator HVDC/AC test power system, and compare with the time domain solution.

Ni, Y.X. [Tsinghua Univ., Beijing (China); Vittal, V.; Kliemann, W.; Fouad, A.A. [Iowa State Univ., Ames, IA (United States)

1996-11-01T23:59:59.000Z

274

The abundance of presolar grains in comet 81P/WILD 2  

SciTech Connect

We carried out hypervelocity impact experiments in order to test the possibility that presolar grains are preferentially destroyed during impact of the comet 81P/Wild 2 samples into the Stardust Al foil collectors. Powdered samples of the ungrouped carbonaceous chondrite Acfer 094 were shot at 6 km s{sup -1} into Stardust flight spare Al foil. Craters from the Acfer 094 test shots, as well as ones from the actual Stardust cometary foils, were analyzed by NanoSIMS ion imaging to search for presolar grains. We found two O-rich presolar grains and two presolar SiC grains in the Acfer 94 test shots, with measured abundances in the foils of 4 and 5 ppm, respectively, significantly lower than the amount of presolar grains actually present in this meteorite. Based on known abundances of these phases in Acfer 094, we estimate a loss of over 90% of the O-rich presolar grains; the fraction of SiC lost is lower, reflecting its higher resistance to destruction. In the Stardust cometary foils, we identified four O-rich presolar grains in 5000 {mu}m{sup 2} of crater residue. Including a presolar silicate grain found by Leitner et al., the overall measured abundance of O-rich presolar grains in Wild 2 is {approx}35 ppm. No presolar SiC has been found in the foil searches, although one was identified in the aerogel samples. Based on the known abundances of presolar silicates and oxides in Acfer 094, we can calculate the pre-impact abundances of these grains in the Stardust samples. Our calculations indicate initial abundances of 600-830 ppm for O-rich presolar grains. Assuming a typical diameter of {approx}300 nm for SiC suggests a presolar SiC abundance of {approx}45 ppm. Analyses of the Stardust samples indicated early on that recognizable presolar components were not particularly abundant, an observation that was contrary to expectations that the cometary material would, like interplanetary dust particles, be dominated by primitive materials from the early solar system (including abundant presolar grains), which had remained essentially unaltered over solar system history in the cold environment of the Kuiper Belt. Our work shows that comet Wild 2, in fact, does contain more presolar grains than measurements on the Stardust samples suggest, with abundances similar to those observed in primitive IDPs.

Floss, Christine; Stadermann, Frank J.; Ong, W. J. [Laboratory for Space Sciences, Physics Department, Washington University, 1 Brookings Drive, St. Louis, MO 63130 (United States)] [Laboratory for Space Sciences, Physics Department, Washington University, 1 Brookings Drive, St. Louis, MO 63130 (United States); Kearsley, Anton T. [Impacts and Astromaterials Research Centre, Science Facilities, Natural History Museum, London SW7 5BD (United Kingdom)] [Impacts and Astromaterials Research Centre, Science Facilities, Natural History Museum, London SW7 5BD (United Kingdom); Burchell, Mark J., E-mail: floss@wustl.edu [Centre for Astrophysics and Planetary Sciences, School of Physical Sciences, University of Kent, Canterbury, Kent CT2 7NH (United Kingdom)

2013-02-15T23:59:59.000Z

275

Title: Experimental Platform for Novel Distributed Microgrids Control Solutions  

E-Print Network (OSTI)

Title: Experimental Platform for Novel Distributed Microgrids Control Solutions Principal Investigator: Wenxin Liu Sponsor: U.S. Department of Defense Office of Naval Research Summary: Microgrid can, and can operate autonomously without connecting to power grid. The microgrid concept is a big step toward

Nishiguchi, Michele

276

PowerPoint Presentation  

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

Investigation of Advanced Stochastic Investigation of Advanced Stochastic Unit Commitment Solution for Optimal Management of Uncertainty C. Lindsay Anderson CERTS Review, Cornell University August 6, 2013 Overview * Objective * Proposed directions - Probabilistic constraints - Algorithms * Challenges * Conclusions What is "Advanced"? * SCUC is a multi-stage and bi-level optimization problem - Level 1: Binary unit on/off decisions - Level 2: OPF/ED submodel for security * Many variations on this structure to balance details and computational tractability * Stochastic formulations have mainly been scenario-based with dc power flow Objective * Investigation of a formulations for SCUC that will be Flexible: able to include supply and demand side resources in a realistic way, integrate with other

277

ELEMENTAL ABUNDANCE DIFFERENCES IN THE 16 CYGNI BINARY SYSTEM: A SIGNATURE OF GAS GIANT PLANET FORMATION?  

SciTech Connect

The atmospheric parameters of the components of the 16 Cygni binary system, in which the secondary has a gas giant planet detected, are measured accurately using high-quality observational data. Abundances relative to solar are obtained for 25 elements with a mean error of {sigma}([X/H]) = 0.023 dex. The fact that 16 Cyg A has about four times more lithium than 16 Cyg B is normal considering the slightly different masses of the stars. The abundance patterns of 16 Cyg A and B, relative to iron, are typical of that observed in most of the so-called solar twin stars, with the exception of the heavy elements (Z > 30), which can, however, be explained by Galactic chemical evolution. Differential (A-B) abundances are measured with even higher precision ({sigma}({Delta}[X/H]) = 0.018 dex, on average). We find that 16 Cyg A is more metal-rich than 16 Cyg B by {Delta}[M/H] = +0.041 {+-} 0.007 dex. On an element-to-element basis, no correlation between the A-B abundance differences and dust condensation temperature (T{sub C}) is detected. Based on these results, we conclude that if the process of planet formation around 16 Cyg B is responsible for the observed abundance pattern, the formation of gas giants produces a constant downward shift in the photospheric abundance of metals, without a T{sub C} correlation. The latter would be produced by the formation of terrestrial planets instead, as suggested by other recent works on precise elemental abundances. Nevertheless, a scenario consistent with these observations requires the convective envelopes of {approx_equal} 1 M{sub sun} stars to reach their present-day sizes about three times quicker than predicted by standard stellar evolution models.

RamIrez, I.; Roederer, I. U.; Fish, J. R. [Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Melendez, J. [Departamento de Astronomia do IAG/USP, Universidade de Sao Paulo, Rua do Matao 1226, Sao Paulo, 05508-900 SP (Brazil); Cornejo, D., E-mail: ivan@obs.carnegiescience.edu [Departamento de Astrofisica, Agencia Espacial del Peru CONIDA, Luis Felipe Villaran 1069, San Isidro, Lima (Peru)

2011-10-20T23:59:59.000Z

278

Inhomogeneous primordial nucleosynthesis and new abundance constraints on {Omega}{sub b}h{sup 2}  

DOE Green Energy (OSTI)

We discuss the upper limit to the baryonic contribution to the closure density. We consider effects of new observational and theoretical uncertainties in the primordial light element abundances, and the effects of fluctuation geometry on the inhomogeneous nucleosynthesis yields. We also consider implications of the possible detection of a high D/H abundance in a Lyman-{alpha} absorption cloud at high redshift and the implied chemical evolution effects of a high deuterium abundance. We show that there exists a region of the parameter space for inhomogeneous models in which a somewhat higher baryonic contribution to the closure density is possible than that allowed in standard homogeneous models. This result is contrary to some other recent studies and is due to both geometry and recently revised uncertainties in primordial light-element abundances, particularly {sup 7}Li. We find that the presently adopted abundance constraints are consistent with a contribution of baryons to the closure density as high as {Omega}{sub b}h{sub 50}{sup 2} {le} 0.11 ({eta} {le} 7 {times} 10{sup {minus}10}). This corresponds to a 20% increase over the limit from standard homogeneous models ({Omega}{sub b}h{sub 50}{sup 2} {le} 0.08, {eta} {le} 5.8 {times} 10{sup {minus}10}). With a high deuterium abundance the upper limits for the inhomogeneous and homogeneous models would be {Omega}{sub b}h{sub 50}{sup 2} {le} 0.04 and 0.03 ({eta} {le} 2.6 {times} 10{sup {minus}10} and 1.9 {times} 10{sup {minus}10}), respectively. Even higher limits could be obtained by further relaxing the presently accepted primordial lithium abundance constraint as some have proposed.

Mathews, G.J. [Notre Dame Univ., IN (United States). Dept. of Physics]|[Lawrence Livermore National Lab., CA (United States)]|[National Astronomical Observatory of Japan, Tokyo (Japan); Kajino, T.; Orito, M. [National Astronomical Observatory of Japan, Tokyo (Japan)

1995-07-20T23:59:59.000Z

279

Rubidium and lead abundances in giant stars of the globular clusters M4 and M5  

E-Print Network (OSTI)

We present measurements of the neutron-capture elements Rb and Pb for bright giants in the globular clusters M4 and M5. The clusters are of similar metallicity ([Fe/H] = -1.2) but M4 is decidedly s-process enriched relative to M5: [Ba/Fe] = +0.6 for M4 but 0.0 for M5. The Rb and Pb abundances were derived by comparing synthetic spectra with high-resolution, high signal-to-noise ratio spectra obtained with MIKE on the Magellan telescope. Abundances of Y, Zr, La, and Eu were also obtained. In M4, the mean abundances from 12 giants are [Rb/Fe] = 0.39 +/- 0.02 (sigma = 0.07), [Rb/Zr] = 0.17 +/- 0.03 (sigma = 0.08), and [Pb/Fe] = 0.30 +/- 0.02 (sigma = 0.07). In M5, the mean abundances from two giants are [Rb/Fe] = 0.00 +/- 0.05 (sigma = 0.06), [Rb/Zr] = 0.08 +/- 0.08 (sigma = 0.11), and [Pb/Fe] = -0.35 +/- 0.02 (sigma = 0.04). Within the measurement uncertainties, the abundance ratios [Rb/Fe], [Pb/Fe] and [Rb/X] for X = Y, Zr, La are constant from star-to-star in each cluster and none of these ratios are correlated with O or Na abundances. While M4 has a higher Rb abundance than M5, the ratios [Rb/X] are similar in both clusters indicating that the nature of the s-products are very similar for each cluster but the gas from which M4's stars formed had a higher concentration of these products.

David Yong; David L. Lambert; Diane B. Paulson; Bruce W. Carney

2007-10-11T23:59:59.000Z

280

Ohio River Ecological Research Program: Impingement Mortality Characterization Study at 15 Power Stations  

Science Conference Proceedings (OSTI)

This report describes a collaborative approach to impingement abundance monitoring to comply with the Phase II Rule of 316(b) of the Clean Water Act. The study involved sampling at the cooling water intake structures of 15 power plants located over almost the total length of the Ohio River and the development of a model that estimates impingement abundance at each facility over the period of the study.

2009-06-05T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" 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

NCRC Energy Solutions | Open Energy Information  

Open Energy Info (EERE)

NCRC Energy Solutions NCRC Energy Solutions Jump to: navigation, search Name NCRC Energy Solutions Place Plano, Texas Zip 75093 Sector Hydro, Hydrogen Product Developed and controls all rights to a proprietary software application specifically designed to be the operating system for a network of interconnected hydrogen-electric and other distributed power generation devices. Coordinates 33.020795°, -96.699214° 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":33.020795,"lon":-96.699214,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

282

Is Nuclear Energy the Solution?  

E-Print Network (OSTI)

cost competitive with other electricity-generating alternatives. For example, wind power and other renewable technologies, combined with energy

Saier, Milton H.; Trevors, Jack T.

2010-01-01T23:59:59.000Z

283

Solar Choice Solutions Inc | Open Energy Information  

Open Energy Info (EERE)

Choice Solutions Inc Jump to: navigation, search Name Solar Choice Solutions Inc. Place Calabasas, California Zip 91302 Sector Solar Product Solar Choice Solutions Inc. is an...

284

Low Power Design Low PowerLow Power  

E-Print Network (OSTI)

, correlations among system state transitions #12;Low Power Design USC/LPCAD Page 11 USCUSC Low PowerLow Power for the requestsIncoming rates for the requests 21,rr 12 ,rr, :, : State transition ratesState transition rates OS and hardware Abstract, hierarchical finite-state machine Each state represents power

Pedram, Massoud

285

Nuclear power in the Soviet Bloc  

SciTech Connect

The growth of Soviet Bloc nuclear power generation to the end of the century is evaluated on the basis of policy statements of objectives, past and current nuclear power plant construction, and trends in the potential for future construction. Central to this study is a detailed examination of individual reactor construction and site development that provides specific performance data not given elsewhere. A major commitment to nuclear power is abundantly clear and an expansion of ten times in nuclear electric generation is estimated between 1980 and 2000. This rate of growth is likely to have significant impact upon the total energy economy of the Soviet Bloc including lessening demands for use of coal, oil, and gas for electricity generation.

Davey, W.G.

1982-03-01T23:59:59.000Z

286

Sunflower Solutions | Open Energy Information  

Open Energy Info (EERE)

Name Sunflower Solutions Place Cleveland, Ohio Zip 44106 Product Cleveland-based tracking systems maker for PV modules targeted at installations in the developing world....

287

Is Nuclear Energy the Solution?  

E-Print Network (OSTI)

009-0270-y Is Nuclear Energy the Solution? Milton H. Saier &in the last 50 years, nuclear energy subsidies have totaledadministration, the Global Nuclear Energy Partnership (GNEP)

Saier, Milton H.; Trevors, Jack T.

2010-01-01T23:59:59.000Z

288

Enspiria Solutions | Open Energy Information  

Open Energy Info (EERE)

information systems and technology consultants, with services in smart grid planning and systems integration. References Enspiria Solutions1 LinkedIn Connections CrunchBase...

289

Extracting alcohols from aqueous solutions  

DOE Patents (OSTI)

Hydrocarbon and surfactants are contacted with a solution of alcohol and water to extract the alcohol into the hydrocarbon-surfactant mixture.

Compere, Alicia L. (Knoxville, TN); Googin, John M. (Oak Ridge, TN); Griffith, William L. (Oak Ridge, TN)

1984-01-01T23:59:59.000Z

290

Biofuel Solutions | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Name Biofuel Solutions Place Colorado Product Defunct bioethanol plant developer, which had been developing one plant in Fairmont, Minnesota and...

291

Power management system  

DOE Patents (OSTI)

A method of managing power resources for an electrical system of a vehicle may include identifying enabled power sources from among a plurality of power sources in electrical communication with the electrical system and calculating a threshold power value for the enabled power sources. A total power load placed on the electrical system by one or more power consumers may be measured. If the total power load exceeds the threshold power value, then a determination may be made as to whether one or more additional power sources is available from among the plurality of power sources. At least one of the one or more additional power sources may be enabled, if available.

Algrain, Marcelo C. (Peoria, IL); Johnson, Kris W. (Washington, IL); Akasam, Sivaprasad (Peoria, IL); Hoff, Brian D. (East Peoria, IL)

2007-10-02T23:59:59.000Z

292

Solar powered desalination system  

E-Print Network (OSTI)

1.13: California Power Generation by Source31for hydro- electric power generation would be reached inother end users include the power generation industry (4%),

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

293

Solar powered desalination system  

E-Print Network (OSTI)

2008, uses concentrated solar power to split water. Figurethe main reason the potential for solar power is boundless.a clean energy source, solar power is inexhaustible, fairly

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

294

Southwestern Power Administration  

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

POTC Home Courses Instructors NERC Continuing Education Virtual University Power Operations Training Center You'll find the "Power" of learning at Southwestern's Power Operations...

295

Southwestern Power Administration  

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

Schedules Skip Navigation Links Excess Energy Hydro Peaking Power Hydro Power and Energy Sold to Sam Rayburn Dam Electric Cooperative (Rayburn) Hydro Power and Energy Sold to Sam...

296

Hybrid-Intelligent POWER HI-POWER  

Science Conference Proceedings (OSTI)

... T T T A A A SMART-T Current Situation Current Situation ... Page 10. 22 Power Grid Plug & Play architecture Multiple power sources Renewables ...

2013-09-22T23:59:59.000Z

297

Helioseismic Constraints on the Solar Ne/O Ratio and Heavy Element Abundances  

E-Print Network (OSTI)

We examine the constraints imposed by helioseismic data on the solar heavy element abundances. In prior work we argued that the measured depth of the surface convection zone R_CZ and the surface helium abundance Y_surf were good metallicity indicators which placed separable constraints on light metals (CNONe) and the heavier species with good relative meteoritic abundances. The resulting interiors-based abundance scale was higher than some published studies based on 3D model atmospheres at a highly significant level. In this paper we explore the usage of the solar sound speed in the radiative interior as an additional diagnostic, and find that it is sensitive to changes in the Ne/O ratio even for models constructed to have the same R_CZ and Y_surf. Three distinct helioseismic tests (opacity in the radiative core, ionization in the convection zone, and the core mean molecular weight) yield consistent results. Our preferred O, Ne and Fe abundances are 8.86 +/-0.04, 8.15 +/-0.17 and 7.50 +/-0.05 respectively. Th...

Delahaye, F; Pinsonneault, L; Zeippen, C J

2010-01-01T23:59:59.000Z

298

A Low Solar Oxygen Abundance from the First Overtone OH Lines  

E-Print Network (OSTI)

An extremely high-resolution (> 10^5) high-S/N (> 10^3) solar spectrum has been used to measure 15 very weak first overtone (Delta v = 2) infrared OH lines, resulting in a low solar abundance of A(O) ~ 8.6 when MARCS, 3D, and spatially and temporally averaged 3D model atmospheres are used. A higher abundance is obtained with Kurucz (A(O) ~ 8.7) and Holweger & Muller (A(O) ~ 8.8) model atmospheres. The low solar oxygen abundance obtained in this work is in good agreement with a recent 3D analysis of [OI], OI, OH fundamental (Delta v = 1) vibration-rotation and OH pure rotation lines (Asplund et al. 2004). The present result brings further support for a low solar metallicity, and although using a low solar abundance with OPAL opacities ruins the agreement between the calculated and the helioseismic measurement of the depth of the solar convection zone, recent results from the OP project show that the opacities near the base of the solar convection zone are larger than previously thought, bringing further confidence for a low solar oxygen abundance.

Jorge Melendez

2004-07-16T23:59:59.000Z

299

Astrophysical tests of atomic data important for stellar Mg abundance determinations  

E-Print Network (OSTI)

Magnesium abundances of cool stars with different metallicities are important for understanding the galactic chemical evolution. This study tests atomic data used in stellar magnesium abundance analyses. We evaluate non-local thermodynamical equilibrium (NLTE) line formation for Mg I using the most up-to-date theoretical and experimental atomic data available so far and check the Mg abundances from individual lines in the Sun, four well studied A-type stars, and three reference metal-poor stars. With the adopted gf-values, NLTE abundances derived from the Mg I 4703 A, 5528 A, and Mg Ib lines are consistent within 0.05 dex for each A-type star. The same four Mg I lines in the solar spectrum give consistent NLTE abundances at $\\log N_{\\rm Mg}/N_{\\rm H} = -4.45$, when correcting the van der Waals damping constants inferred from the perturbation theory. Inelastic Mg+H collisions as treated by Barklem, Belyaev, Spielfiedel, Guitou, and Feautrier serve as efficient thermalizing process for the statistical equilibri...

Mashonkina, Lyudmila

2012-01-01T23:59:59.000Z

300

Lithium abundances from the 6104A line in cool Pleiades stars  

E-Print Network (OSTI)

Lithium abundances determined by spectral synthesis from both the 6708A resonance line and the 6104 subordinate line are reported for 11 late-type Pleiades stars, including spectra previously analysed by Russell (1996). We report a 0.7 dex scatter in the abundances from 6708A, and a scatter at least as large from the 6104A line. We find a reasonable correllation between the 6104A and 6708A Li abundances, although four stars have 6104A-determined abundances which are significantly larger than the 6708-determined values, by up to 0.5 dex, suggesting problems with the homogeneous, one-dimensional atmospheres being used. We show that these discrepancies can be explained, although probably not uniquely, by the presence of star spots with plausible coverage fractions. The addition of spots does not significantly reduce the apparent scatter in Li abundances, leaving open the possibility that at least some of the spread is caused by real star-to-star differences in pre-main- sequence Li depletion.

A. Ford; J. Jeffries; B. Smalley

2002-06-14T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" 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

Power oscillator  

DOE Patents (OSTI)

An oscillator includes an amplifier having an input and an output, and an impedance transformation network connected between the input of the amplifier and the output of the amplifier, wherein the impedance transformation network is configured to provide suitable positive feedback from the output of the amplifier to the input of the amplifier to initiate and sustain an oscillating condition, and wherein the impedance transformation network is configured to protect the input of the amplifier from a destructive feedback signal. One example of the oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency. Various control circuits may be employed to match the driving frequency of the oscillator to a plurality of tuning states of the lamp.

Gitsevich, Aleksandr (Montgomery Village, MD)

2001-01-01T23:59:59.000Z

302

POWER REACTOR  

DOE Patents (OSTI)

A fast nuclear reactor system ls described for producing power and radioactive isotopes. The reactor core is of the heterogeneous, fluid sealed type comprised of vertically arranged elongated tubular fuel elements having vertical coolant passages. The active portion is surrounded by a neutron reflector and a shield. The system includes pumps and heat exchangers for the primary and secondary coolant circuits. The core, primary coolant pump and primary heat exchanger are disposed within an irapenforate tank which is filled with the primary coolant, in this case a liquid metal such as Na or NaK, to completely submerge these elements. The tank is completely surrounded by a thick walled concrete shield. This reactor system utilizes enriched uranium or plutonium as the fissionable material, uranium or thorium as a diluent and thorium or uranium containing less than 0 7% of the U/sup 235/ isotope as a fertile material.

Zinn, W.H.

1958-07-01T23:59:59.000Z

303

Power plant  

SciTech Connect

A two stroke internal combustion engine is described that has at least one cylinder within which a piston reciprocates. The engine is joined to a gearbox which includes a ring gear. A pair of gears having diameters half that of the ring gear move within the latter. At least one of the pair of gears is connected to a piston by a pin extending between the piston and the periphery of said gear. An additional pair of gears are fixed to respective ones of the first-mentioned gear pair and are operatively joined to a pinion to which a drive shaft is secured. A turbine and filter arrangement is positioned on the side of the engine opposite the gearbox whereby exhaust gases from the engine are directed to the turbine to develop power at an output drive shaft joined to the turbine and to filter pollutants from the gases.

Finn, H.I. Jr.

1978-10-24T23:59:59.000Z

304

Harness the Power of the Sun | Department of Energy  

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

Harness the Power of the Sun Harness the Power of the Sun Harness the Power of the Sun September 21, 2010 - 10:54am Addthis Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs Editor's Note: Cross-posted from the Energy Savers Blog. Before I started my internship here at the Department of Energy, when I thought of solar power I would automatically think solar panels. However, within the last couple of months I've gained a better understanding of the variety of ways we can harness the sun's abundant energy to help meet our power needs. Step outside on a hot and sunny summer day, and you'll feel the power of solar heat and light. There are many ways to take advantage of this natural resource. One option I find particularly interesting is passive solar

305

Harness the Power of the Sun | Department of Energy  

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

Harness the Power of the Sun Harness the Power of the Sun Harness the Power of the Sun September 21, 2010 - 10:54am Addthis Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs Editor's Note: Cross-posted from the Energy Savers Blog. Before I started my internship here at the Department of Energy, when I thought of solar power I would automatically think solar panels. However, within the last couple of months I've gained a better understanding of the variety of ways we can harness the sun's abundant energy to help meet our power needs. Step outside on a hot and sunny summer day, and you'll feel the power of solar heat and light. There are many ways to take advantage of this natural resource. One option I find particularly interesting is passive solar

306

Harness the Power of the Sun | Department of Energy  

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

Harness the Power of the Sun Harness the Power of the Sun Harness the Power of the Sun September 14, 2010 - 12:32pm Addthis Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs In the past, when I thought of solar power I would automatically think solar panels or more specifically, solar photovoltaics. However, within the last couple of months I've gained a better understanding of the variety of ways we can harness the sun's abundant energy to help meet our power needs. Step outside on a hot and sunny summer day, and you'll feel the power of solar heat and light. There are many ways to take advantage of this natural resource. One option I find particularly interesting is passive solar design. Your home's windows, walls, and floors can be designed to collect, store,

307

Alternative Power Enterprises | Open Energy Information  

Open Energy Info (EERE)

Power Enterprises Power Enterprises Jump to: navigation, search Logo: Alternative Power Enterprises Name Alternative Power Enterprises Address P.O. Box 351 Place Ridgway, Colorado Zip 81432 Sector Solar Product Design cost effective power solutions for on- and off-grid locations Website http://www.alternative-power.c Coordinates 38.1532985°, -107.811° 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":38.1532985,"lon":-107.811,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

308

A new Einstein-nonlinear electrodynamics solution in 2+1-dimensions  

E-Print Network (OSTI)

We introduce a class of solutions in $2+1-$dimensional Einstein-Power-Maxwell theory for circularly symmetric electric field. The electromagnetic field is considered with an angular component given by $% F_{\\mu \

S. Habib Mazharimousavi; M. Halilsoy; Ozay Gurtug

2013-04-17T23:59:59.000Z

309

FY 2010 Savannah River Nuclear Solutions, LLC, PER Summary | National  

National Nuclear Security Administration (NNSA)

Savannah River Nuclear Solutions, LLC, PER Summary | National Savannah River Nuclear Solutions, LLC, PER Summary | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog FY 2010 Savannah River Nuclear Solutions, LLC, PER Summary Home > About Us > Our Operations > Acquisition and Project Management > Performance Evaluations > FY 2010 Savannah River Nuclear Solutions, LLC,

310

FY 2012 Savannah River Nuclear Solutions, LLC, PER Summary | National  

National Nuclear Security Administration (NNSA)

Savannah River Nuclear Solutions, LLC, PER Summary | National Savannah River Nuclear Solutions, LLC, PER Summary | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog FY 2012 Savannah River Nuclear Solutions, LLC, PER Summary Home > About Us > Our Operations > Acquisition and Project Management > Performance Evaluations > FY 2012 Savannah River Nuclear Solutions, LLC,

311

Toroidal solutions in Horava Gravity  

E-Print Network (OSTI)

Recently a new four-dimensional non relativistic renormalizable theory of gravity was proposed by Horava. This gravity reduces to Einstein gravity at large distances. In this paper by using the new action for gravity we present different toroidal solutions to the equations of motion. Our solutions describe the near horizon geometry with slow rotating parameter.

Ahmad Ghodsi

2009-05-06T23:59:59.000Z

312

New Offices, New Ways of Working, and Abundant Energy Savings | Department  

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

Offices, New Ways of Working, and Abundant Energy Savings Offices, New Ways of Working, and Abundant Energy Savings New Offices, New Ways of Working, and Abundant Energy Savings July 6, 2010 - 2:01pm Addthis Allison Casey Senior Communicator, NREL A few weeks ago, our entire communications office was lucky enough to be among the first to move into the new Research Support Facility (RSF) here at the National Renewable Energy Lab (NREL). Moving into a new building may not sound all that exciting, but this was a momentous day for NREL: the RSF is ultra-efficient and is a showcase for energy efficiency and renewable energy technologies. As the lab's director, Dan Arvizu, said in his welcome message to our office, "The Laboratory began this journey more than thirty years ago, and today-after years of research, planning, and sixteen months of

313

New Offices, New Ways of Working, and Abundant Energy Savings | Department  

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

New Offices, New Ways of Working, and Abundant Energy Savings New Offices, New Ways of Working, and Abundant Energy Savings New Offices, New Ways of Working, and Abundant Energy Savings July 6, 2010 - 2:01pm Addthis Allison Casey Senior Communicator, NREL A few weeks ago, our entire communications office was lucky enough to be among the first to move into the new Research Support Facility (RSF) here at the National Renewable Energy Lab (NREL). Moving into a new building may not sound all that exciting, but this was a momentous day for NREL: the RSF is ultra-efficient and is a showcase for energy efficiency and renewable energy technologies. As the lab's director, Dan Arvizu, said in his welcome message to our office, "The Laboratory began this journey more than thirty years ago, and today-after years of research, planning, and sixteen months of

314

Element abundances in cool white dwarfs. II. Ultraviolet observations of DZ white dwarfs  

E-Print Network (OSTI)

We present a small data base of homogeneously derived photospheric element abundances of DZ white dwarfs and related objects. Our previous investigations are supplemented with the analysis of ultraviolet spectra for nine white dwarfs. Of particular interest is the detection of Lalpha absorption in van Maanen 2 and a determination of the effective temperature of this star. The new value is about 1000K lower than previous results due to the strong ultraviolet absorption by metals which has to be considered consistently. The metal abundances of our sample stars are compatible with the predictions from the two-phase accretion model of Dupuis et al. (1992, 1993). Small deviations can be observed for the abundance ratios in some objects. This could indicate non-solar metal-to-metal ratios in the accreted material. Hydrogen can be detected in virtually all of our objects. However, its average accretion rate must be at least two orders of magnitude lower than the metal accretion rate.

B. Wolff; D. Koester; J. Liebert

2002-04-24T23:59:59.000Z

315

Using Cepheids to determine the galactic abundance gradient. III.First results for the outer disc  

E-Print Network (OSTI)

As a continuation of our previous work, which concerned the radial abundance distribution in the galactic disc over the distances 4-10 kpc this paper presents the first results on the metallicicty in the outer disc (RG > 10 kpc). Based on high-resolution spectra obtained for 19 distant Cepheids we sampled galactocentric distances from 10 to 12 kpc. Combined with the results of our previous work on the inner and middle parts of the galactic disc, the present data enable one to study the structure of the radial abundance distribution over a large baseline. In particular, we find indications of a discontinuity in the radial abundance distribution for iron as well as a number of the other elements. The discontinuity is seen at a galactocentric distance RG = 10 kpc. This finding supports the results reported earlier by Twarog et al. (1997).

S. M. Andrievsky; V. V. Kovtyukh; R. E. Luck; J. R. D. Lepine; W. J. Maciel; Yu. V. Beletsky

2002-08-02T23:59:59.000Z

316

TREATMENT OF AMMONIUM NITRATE SOLUTIONS  

DOE Patents (OSTI)

The treatment of waste solutions obtained in the processing of neutron- irradiated uranium containing fission products and ammonium nitrate is described. The object of this process is to provide a method whereby the ammonium nitrate is destroyed and removed from the solution so as to permit subsequent concentration of the solution.. In accordance with the process the residual nitrate solutions are treated with an excess of alkyl acid anhydride, such as acetic anhydride. Preferably, the residual nitrate solution is added to an excess of the acetic anhydride at such a rate that external heat is not required. The result of this operation is that the ammonium nitrate and acetic anhydride react to form N/sub 2/ O and acetic acid.

Boyer, T.W.; MacHutchin, J.G.; Yaffe, L.

1958-06-10T23:59:59.000Z

317

Exact Solutions in Massive Gravity  

E-Print Network (OSTI)

Massive gravity is a good theoretical laboratory to study modifications of General Relativity. The theory offers a concrete set-up to study models of dark energy, since it admits cosmological self-accelerating solutions in the vacuum, in which the size of the acceleration depends on the graviton mass. Moreover, non-linear gravitational self-interactions, in the proximity of a matter source, manage to mimic the predictions of linearised General Relativity, hence agreeing with solar-system precision measurements. In this article, we review our work in the subject, classifying, on one hand, static solutions, and on the other hand, self-accelerating backgrounds. For what respects static solutions we exhibit black hole configurations, together with other solutions that recover General Relativity near a source via the Vainshtein mechanism. For the self-accelerating solutions we describe a wide class of cosmological backgrounds, including an analysis of their stability.

Gianmassimo Tasinato; Kazuya Koyama; Gustavo Niz

2013-04-02T23:59:59.000Z

318

Market Assessment of Power Quality Problems and Mitigation Options in the Telecommunications Industry  

Science Conference Proceedings (OSTI)

This report addresses a specific market segment, the telecommunications industry, and provides a detailed assessment of power conditioning technologies and other solutions to power quality problems that could be economically justified.

1999-10-31T23:59:59.000Z

319

A CHEMICAL ABUNDANCE STUDY OF RED GIANTS IN OPEN CLUSTERS NGC 2204 AND NGC 2243  

Science Conference Proceedings (OSTI)

Detailed element abundances have been determined for 10-13 stars each in the open clusters (OCs) NGC 2204 and NGC 2243 based on Hydra multi-object echelle spectra obtained with the CTIO 4 m telescope. We have found average cluster metallicities of [Fe/H] = -0.23 {+-} 0.04 and -0.42 {+-} 0.05 for NGC 2204 and NGC 2243, respectively, from an equivalent width analysis. NGC 2243 is the most metal-poor cluster at its Galactocentric radius and is one of the most metal-poor OCs currently known. These two clusters lie {approx}1 kpc below the Galactic plane; it is therefore worthwhile to compare their abundance patterns to those of clusters both closer to and further from the plane. To that end, we combined the results of the current study with those of clusters from our previous work as well as from the literature. To minimize systematic differences between different studies, element abundances of many outer disk OCs as well as thin and thick disk field stars have been placed on our abundance scale. Plots of [X/Fe] versus [Fe/H] for NGC 2204, NGC 2243, other clusters from the literature, and thin and thick disk field stars show NGC 2204 and NGC 2243 to have element abundance patterns comparable to those of other clusters regardless of distance from the plane or center of the Galaxy. Similarly, no individual cluster or group of clusters far from the Galactic mid-plane can be identified as belonging to the thick disk based on their abundance patterns.

Jacobson, Heather R. [Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48823 (United States); Friel, Eileen D. [Department of Astronomy, Boston University, 725 Commonwealth Avenue, Boston, MA 02215 (United States); Pilachowski, Catherine A., E-mail: jacob189@msu.edu, E-mail: edfriel@mac.com, E-mail: catyp@astro.indiana.edu [Department of Astronomy, Indiana University, Bloomington, IN 47405 (United States)

2011-02-15T23:59:59.000Z

320

Sulfur, Chlorine, and Argon Abundances in Planetary Nebulae. IV: Synthesis and the Sulfur Anomaly  

E-Print Network (OSTI)

We have compiled a large sample of O, Ne, S, Cl, and Ar abundances which have been determined for 85 galactic planetary nebulae in a consistent and homogeneous manner using spectra extending from 3600-9600 Angstroms. Sulfur abundances have been computed using the near IR lines of [S III] 9069,9532 along with [S III] temperatures. We find average values, expressed logarithmically with a standard deviation, of log(S/O)=-1.91(+/-.24), log(Cl/O)=-3.52(+/-.16), and log(Ar/O)=-2.29(+/-.18), numbers consistent with previous studies of both planetary nebulae and H II regions. We also find a strong correlation between [O III] and [S III] temperatures among planetary nebulae. In analyzing abundances of Ne, S, Cl, and Ar with respect to O, we find a tight correlation for Ne-O, and loose correlations for Cl-O and Ar-O. All three trends appear to be colinear with observed correlations for H II regions. S and O also show a correlation but there is a definite offset from the behavior exhibited by H II regions and stars. We suggest that this S anomaly is most easily explained by the existence of S^+3, whose abundance must be inferred indirectly when only optical spectra are available, in amounts in excess of what is predicted by model-derived ionization correction factors. Finally for the disk PNe, abundances of O, Ne, S, Cl, and Ar all show gradients when plotted against galactocentric distance. The slopes are statistically indistinguishable from one another, a result which is consistent with the notion that the cosmic abundances of these elements evolve in lockstep.

R. B. C. Henry; K. B. Kwitter; Bruce Balick

2004-01-09T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" from the National Library of EnergyBeta (NLEBeta).
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321

Electric Power Annual  

U.S. Energy Information Administration (EIA)

Electric Power Sector ; Period Total (all sectors) Electric Utilities Independent Power Producers Commercial Sector Industrial Sector; Annual Totals: ...

322

Electric Power Metrology Portal  

Science Conference Proceedings (OSTI)

... Electric Power Metrology and the Smart Grid Our country's way of life depends on the electric power distribution system. ...

2012-12-26T23:59:59.000Z

323

Putting Economic Power in Distributed Power  

Reports and Publications (EIA)

Electric Power Research Institute's Distributed Resources Week 1997 (October 22, 1997)AUTHOR: John Herbert

Information Center

1997-10-22T23:59:59.000Z

324

Linearization of a pulse width modulated power amplifier  

E-Print Network (OSTI)

Currently, the cellphone industry is moving towards an integrated CMOS solution for power amplifiers. Cheaper phones for consumers and better bottom lines for companies are the result of this. The goal of this thesis is ...

Kuo, Shawn, 1981-

2004-01-01T23:59:59.000Z

325

PowerPoint Presentation  

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

Reservoir Solutions, Inc. All Rights Reserved. SIGMA 3 Technologies Span the Entire E&P Workflow, and Hydraulic Fracturing is Key 19 SIGMA 3 Integrated Reservoir Solutions,...

326

Approximate analytical solutions for nonlinear Emden-Fowler type equations by differential transform method  

E-Print Network (OSTI)

In this paper, approximate analytical solutions of nonlinear Emden-Fowler type equations are obtained by the differential transform method (DTM). The DTM is a numerical as well as analytical method for solving integral equations, ordinary and partial diferential equations. To show the efficiency of the DTM, some examples are presented. Comparisons with exact solution show that the DTM is a powerful method for the solution of the nonlinear Emden-Fowler type equations.

Birol Ibis

2012-11-15T23:59:59.000Z

327

Space-based solar power generation using a distributed network of satellites and methods for efficient space power transmission  

E-Print Network (OSTI)

Space-based solar power (SSP) generation is being touted as a solution to our ever-increasing energy consumption and dependence on fossil fuels. Satellites in Earth's orbit can capture solar energy through photovoltaic ...

McLinko, Ryan M.

328

Beam-powered lunar rover design  

Science Conference Proceedings (OSTI)

Manned exploration of our nearest neighbors in the solar systems is the primary goal of the Space Exploration Initiative (SEI). An integral part of any manned lunar or planetary outpost will be a system for manned excursions over the surface of the planet. This report presents a preliminary design for a lunar rover capable of supporting four astronauts on long-duration excursions across the lunar landscape. The distinguishing feature of this rover design is that power is provided to rover via a laser beam from an independent orbiting power satellite. This system design provides very high power availability with minimal mass on the rover vehicle. With this abundance of power, and with a relatively small power-system mass contained in the rover, the vehicle can perform an impressive suite of mission-related activity. The rover might be used as the first outpost for the lunar surface (i.e., a mobile base). A mobile base has the advantage of providing extensive mission activities without the expense of establishing a fixed base. This concept has been referred to as ``Rove First.`` A manned over, powered through a laser beam, has been designed for travel on the lunar surface for round-trip distances in the range of 1000 km, although the actual distance traveled is not crucial since the propulsion system does not rely on energy storage. The life support system can support a 4-person crew for up to 30 days, and ample power is available for mission-related activities. The 8000-kg rover has 30 kW of continuous power available via a laser transmitter located at the Earth-moon L1 libration point, about 50,000 km above the surface of the moon. This rover, which is designed to operate in either day or night conditions, has the flexibility to perform a variety of power-intensive missions. 24 refs.

Dagle, J.E.; Coomes, E.P.; Antoniak, Z.I.; Bamberger, J.A.; Bates, J.M.; Chiu, M.A.; Dodge, R.E.; Wise, J.A.

1992-03-01T23:59:59.000Z

329

Beam-powered lunar rover design  

Science Conference Proceedings (OSTI)

Manned exploration of our nearest neighbors in the solar systems is the primary goal of the Space Exploration Initiative (SEI). An integral part of any manned lunar or planetary outpost will be a system for manned excursions over the surface of the planet. This report presents a preliminary design for a lunar rover capable of supporting four astronauts on long-duration excursions across the lunar landscape. The distinguishing feature of this rover design is that power is provided to rover via a laser beam from an independent orbiting power satellite. This system design provides very high power availability with minimal mass on the rover vehicle. With this abundance of power, and with a relatively small power-system mass contained in the rover, the vehicle can perform an impressive suite of mission-related activity. The rover might be used as the first outpost for the lunar surface (i.e., a mobile base). A mobile base has the advantage of providing extensive mission activities without the expense of establishing a fixed base. This concept has been referred to as Rove First.'' A manned over, powered through a laser beam, has been designed for travel on the lunar surface for round-trip distances in the range of 1000 km, although the actual distance traveled is not crucial since the propulsion system does not rely on energy storage. The life support system can support a 4-person crew for up to 30 days, and ample power is available for mission-related activities. The 8000-kg rover has 30 kW of continuous power available via a laser transmitter located at the Earth-moon L1 libration point, about 50,000 km above the surface of the moon. This rover, which is designed to operate in either day or night conditions, has the flexibility to perform a variety of power-intensive missions. 24 refs.

Dagle, J.E.; Coomes, E.P.; Antoniak, Z.I.; Bamberger, J.A.; Bates, J.M.; Chiu, M.A.; Dodge, R.E.; Wise, J.A.

1992-03-01T23:59:59.000Z

330

Chemical abundances of metal-poor RR Lyrae stars in the Magellanic Clouds  

E-Print Network (OSTI)

We present for the first time a detailed spectroscopic study of chemical element abundances of metal-poor RR Lyrae stars in the Large and Small Magellanic Cloud (LMC and SMC). Using the MagE echelle spectrograph at the 6.5 ...

Haschke, Raoul

331

AGE-1 WALLEYE POLLOCK IN THE EASTERN BERING SEA: DISTRIBUTION, ABUNDANCE, DIET, AND ENERGY DENSITY  

E-Print Network (OSTI)

AGE-1 WALLEYE POLLOCK IN THE EASTERN BERING SEA: DISTRIBUTION, ABUNDANCE, DIET, AND ENERGY DENSITY performed at sea · Energy density estimated using bomb calorimetry for samples from BASIS and MACE surveys · Confirm ages of age-0 and age-1 pollock using otoliths · Distribution of age-1's further north than age-0

332

The elemental abundance pattern in a galaxy at z=2.626  

E-Print Network (OSTI)

The discovery of metal-poor stars (where metal is any element more massive than helium) has enabled astronomers to probe the chemical enrichment history of the Milky Way. More recently, element abundances in gas inside high-redshift galaxies has been probed through the absorption lines imprinted on the spectra of background quasars, but these have typically yielded measurements of only a few elements. Furthermore, interpretation of these abundances is complicated by the fact that differential incorporation of metals into dust can produce an abundance pattern similar to that expected from nucleosynthesis by massive stars. Here we report the observation of over 25 elements in a galaxy at z=2.626. With these data, we can examine nucleosynthetic processes independent of the uncertainty arising from depletion. We find that the galaxy was enriched mainly by massive stars (M > 15 solar masses) and propose that it is the progenitor of a massive, elliptical galaxy. The detailed abundance patterns suggest that boron is produced through processes that act independently of metallicity, and may require alternative mechanisms for the nucleosynthesis of germanium.

Jason X. Prochaska; J. Chris Howk; Arthur M. Wolfe

2003-04-30T23:59:59.000Z

333

A Low Solar Oxygen Abundance from the First Overtone OH Lines  

E-Print Network (OSTI)

An extremely high-resolution (> 10^5) high-S/N (> 10^3) solar spectrum has been used to measure 15 very weak first overtone (Delta v = 2) infrared OH lines, resulting in a low solar abundance of A(O) ~ 8.6 when MARCS, 3D, and spatially and temporally averaged 3D model atmospheres are used. A higher abundance is obtained with Kurucz (A(O) ~ 8.7) and Holweger & Muller (A(O) ~ 8.8) model atmospheres. The low solar oxygen abundance obtained in this work is in good agreement with a recent 3D analysis of [OI], OI, OH fundamental (Delta v = 1) vibration-rotation and OH pure rotation lines (Asplund et al. 2004). The present result brings further support for a low solar metallicity, and although using a low solar abundance with OPAL opacities ruins the agreement between the calculated and the helioseismic measurement of the depth of the solar convection zone, recent results from the OP project show that the opacities near the base of the solar convection zone are larger than previously thought, bringing further co...

Melendez, J

2004-01-01T23:59:59.000Z

334

Line formation in solar granulation: V. Missing UV-opacity and the photospheric Be abundance  

E-Print Network (OSTI)

The possibility of unaccounted for opacity sources in the UV for late-type stars has often been invoked to explain discrepancies between predicted and observed flux distributions and spectral line strengths. Such missing UV-opacity could among other things have a significant impact on abundance determination for elements whose only relevant spectral features are accessible in this wavelength region, such as Be. Here, the study by Balachandran & Bell (1998) is re-visited in the light of a realistic 3D hydrodynamical solar model atmosphere and the recently significantly downward revised solar O abundance obtained with the same model atmosphere. The amount of missing UV-opacity, if any, is quantified by enforcing that the OH A-X electronic lines around 313 nm produce the same O abundance as the other available diagnostics: OH vibration-rotation and pure rotation lines in the IR, the forbidden [OI] 630.0 and 636.3 nm lines and high-excitation, permitted OI lines. This additional opacity is then applied for the synthesis of the BeII line at 313.0nm to derive a solar photospheric Be abundance in excellent agreement with the meteoritic value, thus re-enforcing the conclusions of Balachandran & Bell. The about 50% extra opacity over accounted for opacity sources can be well explained by recent calculations by the Iron Project for photo-ionization of FeI.

M. Asplund

2003-12-11T23:59:59.000Z

335

NREL Explores Earth-Abundant Materials for Future Solar Cells (Fact Sheet)  

DOE Green Energy (OSTI)

Researchers at the National Renewable Energy Laboratory (NREL) are using a theory-driven technique - sequential cation mutation - to understand the nature and limitations of promising solar cell materials that can replace today's technologies. Finding new materials that use Earth-abundant elements and are easily manufactured is important for large-scale solar electricity deployment.

Not Available

2012-10-01T23:59:59.000Z

336

Sulfur, Chlorine, and Argon Abundances in Planetary Nebulae. III: Observations and Results for a Final Sample  

E-Print Network (OSTI)

This paper is the fourth in a series whose purpose is to study the interstellar abundances of sulfur, chlorine, and argon in the Galaxy using a sample of 86 planetary nebulae. Here we present new high-quality spectrophotometric observations of 20 Galactic planetary nebulae with spectral coverage from 3700-9600 Angstroms. A major feature of our observations throughout the entire study has been the inclusion of the near-infrared lines of [S III] 9069,9532, which allows us to calculate accurate S+2 abundances and to either improve upon or convincingly confirm results of earlier sulfur abundance studies. For each of the 20 objects here we calculate ratios of S/O, Cl/O, and Ar/O and find average values of S/O=1.1E-2+/-1.1E-2, Cl/O=4.2E-4+/-5.3E-4, and Ar/O=5.7E-3+/-4.3E-3. For six objects we are able to compare abundances of S+3 calculated directly from available [S IV] 10.5 micron measurements with those inferred indirectly from the values of the ionization correction factors for sulfur. In the final paper of the series, we will compile results from all 86 objects, search for and evaluate trends, and use chemical evolution models to interpret our results.

K. B. Kwitter; R. B. C. Henry; J. B. Milingo

2002-09-25T23:59:59.000Z

337

OXYGEN GAS-PHASE ABUNDANCE REVISITED M. K. Andre,1,2  

E-Print Network (OSTI)

Explorer (FUSE) observations of molecular hydrogen. The molecular hydrogen content of these sight lines along these sight lines, which probe a wide range of Galactic environments in the distant interstellar grains are resilient against destruction by shocks, the distant interstellar total oxygen abundance can

Howk, Jay Christopher

338

A probabilistic approach to accurate abundance-based binning of metagenomic reads  

Science Conference Proceedings (OSTI)

An important problem in metagenomic analysis is to determine and quantify species (or genomes) in a metagenomic sample. The identification of phylogenetically related groups of sequence reads in a metagenomic dataset is often referred to as binning. ... Keywords: abundance-based binning, expectation maximization, metagenomics, next-generation sequencing

Olga Tanaseichuk; James Borneman; Tao Jiang

2012-09-01T23:59:59.000Z

339

tribution and abundance. In analysis of survey data, these results are a first approximation of correction  

E-Print Network (OSTI)

variables affecting aerial surveys, but the effects of glare on shipboard surveys and observer variabilitytribution and abundance. In analysis of survey data, these results are a first approximation conditions or animal behavior. Further work on survey methodology should examine the effect of eye height

340

Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction  

E-Print Network (OSTI)

Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas Pennsylvania, ex- amining natural gas concentrations and isotopic signatures with proximity to shale gas wells this transformation, with shale gas and other unconventional sources now yielding more than one- half of all US

Jackson, Robert B.

Note: This page contains sample records for the topic "abundant power solutions" 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

Power Quality for the Plastics Industry  

Science Conference Proceedings (OSTI)

This PQ TechWatch provides an overview of common plastics manufacturing processes and examines the types of power quality (PQ) phenomena to which they are most susceptible. Descriptions of investigative methods, cost-effective solutions, and illustrative case studies provide important details on how effectively dealing with common PQ issues can enhance the productivity of plastics manufacturing processes.

2004-12-31T23:59:59.000Z

342

Chapter 3 - Conducting a Power Quality Audit  

Science Conference Proceedings (OSTI)

This chapter of the EPRI Solutions PQ Encyclopedia provides information on the power quality (PQ) audit: a process by which the sensitive portions of an end-use facility are identified, the PQ phenomena characterized, and, hopefully, the ideal and most cost-effective methods for mitigation discovered.

2005-12-31T23:59:59.000Z

343

Distributed Power Allocation in Prosumer Thiagarajan Ramachandran,  

E-Print Network (OSTI)

balancing agent: the prosumer, which was introduced in Grijalva and Tariq [2011]. As the electricityDistributed Power Allocation in Prosumer Networks Thiagarajan Ramachandran, Zak Costello, Peter for its solution. We show that the information required by the individual prosumers to solve the problem

Egerstedt, Magnus

344

New Concepts in Wind Power Forecasting Models  

E-Print Network (OSTI)

of the motivations behind the project led by ANL ­ Argonne National Laboratory, together with INESC Porto from a manageable procedure to compute the solution. IV. ENTROPY AND PARZEN WINDOW PDF ESTIMATION The most well into the substation connecting it to the electric power network. Other model's input variables include forecasts

Kemner, Ken

345

Power-Pro: Programmable Power Management Architecture  

E-Print Network (OSTI)

This paper presents Power-Pro architecture (Programmable Power Management Architecture), a novel processor architecture for power reduction. Power-Pro architecture has following two functionalities, (i) Supply voltage and clock frequency can be dynamically varied, (ii) Active data-path width can be dynamically adjusted to requirement of application programs. For the application programs which require less performance or less data-path width, Power-Pro architecture realize dramatic power reduction. I. Introduction With recent popularizations in portable, batterypowered devices such as digital cellular telephones and personal digital assistants, minimizing power consumption of VLSI circuits becomes more important. As the system level power reduction techniques, the choice of optimal supply voltage(V DD ) and optimal active data-path width have strong impacts. In this paper we propose novel processor architecture Power-Pro [2] which can vary VDD and active data-path width of processor ...

Tohru Ishihara; Hiroto Yasuura; Programmable Power Management

1998-01-01T23:59:59.000Z

346

Energy Conversion | Global and Regional Solutions  

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

Energy Conversion Group Energy Conversion Group The Energy Conversion Group offers advanced technical solutions to achieve reduced fossil fuel use in geothermal power and building energy applications. Focus is on advanced materials, biofuel end use, combustion and system concepts. We seek to continuously improve the capabilities of relevant research tools being applied in collaborative initiatives to achieving these goals. Capabilities The group conducts research in a number of energy-related areas. These include advanced materials for geothermal energy, applications of biofuels and alternative fuels, efficiency in heating/cooling equipment, advanced oil burner development and particulate emissions for wood boilers. Advanced Materials for Geothermal Energy Supercritical carbon dioxide has properties midway between a gas and a

347

Sol Solution | Open Energy Information  

Open Energy Info (EERE)

Solution Solution Jump to: navigation, search Name Sol Solution Place Los Gatos, California Zip 95030 Sector Solar Product Rainbow Concentrator, Current matching multijunction Solar Cell Year founded 2008 Website http://www.Sol-Solution.net Coordinates 37.216351719361°, -121.9694852829° 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":37.216351719361,"lon":-121.9694852829,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

348

Natural Solutions | Open Energy Information  

Open Energy Info (EERE)

Natural Solutions Natural Solutions Jump to: navigation, search Logo: Natural Solutions Name Natural Solutions Address 3715 Briarwood Dr. Place Cedar Falls, Iowa Zip 50613 Sector Solar Product solar and wind systems Phone number 319-277-7842 Website http://www.naturalsolutions-sk Coordinates 42.5048475°, -92.434048° 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":42.5048475,"lon":-92.434048,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

349

Heinsight Solutions | Open Energy Information  

Open Energy Info (EERE)

Heinsight Solutions Heinsight Solutions Jump to: navigation, search Logo: Heinsight Solutions Name Heinsight Solutions Address 217 Pine Street Place Fort Collins, Colorado Zip 80524 Sector Efficiency Product Skylight and solar water heating installation Website http://www.heinsightsolutions. Coordinates 40.5891279°, -105.0765009° 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":40.5891279,"lon":-105.0765009,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

350

Soy Solutions | Open Energy Information  

Open Energy Info (EERE)

Milford, Iowa Zip 51351 Product Manufacturer and distributor of 100 percent Soy-Based Biodiesel References Soy Solutions1 LinkedIn Connections CrunchBase Profile No CrunchBase...

351

Is Nuclear Energy the Solution?  

E-Print Network (OSTI)

10.1007/s11270-009-0270-y Is Nuclear Energy the Solution?MHS) attended a lecture on Nuclear Responsibility on theof the Alliance for Nuclear Responsibility. The information

Saier, Milton H.; Trevors, Jack T.

2010-01-01T23:59:59.000Z

352

Macroinvertebrate Abundance and Biomass: 2007 Data, BPA-51; Preliminary Report, February 10, 2009..  

DOE Green Energy (OSTI)

Four Excel files containing information on the 2007 macroinvertebrate data were initially provided to Statistical Consulting Services (SCS) by EcoAnalysts on 1/27/2009. These data files contained information on abundance and biomass data at the level of taxonomic groups. The data were subsequently reformatted and compiled, and aggregated for analysis by SCS. All descriptions and analyses below relate to this compiled data. Computations were carried out separately for each site over all sample periods. Basic summary information for both the abundance and biomass data is presented in Print Out No.2. The 14 sites varied widely in their minimum, mean, maximum and variance values. The number of observations ranged from 10 to 18. Some large abundance values (abundance > 40,000) were noted for sites KR6 and KR13. A more detailed summary of each site is given in Print Out No.3. Site KR3, for example, had a mean abundance of 6914 with a sample size of 17. The variance was 4591991 and the standard error of the mean was 1643. The skewness value, a measure of symmetry for the frequency distribution, was moderately large at 1.29 indicating an asymmetric distribution. Biomass for KR3 had a mean value of 0.87 g/m{sup 2} with 17 observations. The variance was 0.8872 and the standard error was 0.228 g/m{sup 2}. Skewness for biomass was also high at 1.29. Further examination of the quantiles and frequency plots for abundance and biomass also indicate considerable skewness. The stem and leaf diagram (frequency plot) for abundance in KR3 shows most of the data centered on smaller values with a few very large counts. The distribution for biomass has a similar pattern. Statistical tests for normality are significant for both response variables in KR3, thus, the hypothesis that the data originates from a symmetric normal distribution is rejected. Because sample size estimation and statistical inference assume normally distributed data, a transformation of the data is required prior to further analysis. As was the case for previous years, the natural logarithm was chosen as a transformation to mitigate distributional skewness. Abundance and biomass for the remaining sites were also notably skewed, therefore, these data were also log transformed prior to analysis. Summary information for the transformed data (referred to as L-abun and L-bio for abundance and biomass, respectively) are given in Print Out No.4. For site KR3, the logarithmic transformation reduced skewness value for biomass to -0.66. The distributions of abundance and biomass in the other sites also generally showed improvement as well. Hence, all subsequent statistical analyses reported here will be based on the log transformed data.

Holderman, Charles

2009-02-10T23:59:59.000Z

353

Electric power 2007  

SciTech Connect

Subjects covered include: power industry trends - near term fuel strategies - price/quality/delivery/opportunity; generating fleet optimization and plant optimization; power plant safety and security; coal power plants - upgrades and new capacity; IGCC, advanced combustion and CO{sub 2} capture technologies; gas turbine and combined cycle power plants; nuclear power; renewable power; plant operations and maintenance; power plant components - design and operation; environmental; regulatory issues, strategies and technologies; and advanced energy strategies and technologies. The presentations are in pdf format.

NONE

2007-07-01T23:59:59.000Z

354

SOLAR POWER  

DOE Green Energy (OSTI)

Thermal energy storage (TES) is an integral part of a concentrated solar power (CSP) system. It enables plant operators to generate electricity beyond on sun hours and supply power to the grid to meet peak demand. Current CSP sensible heat storage systems employ molten salts as both the heat transfer fluid and the heat storage media. These systems have an upper operating temperature limit of around 400 C. Future TES systems are expected to operate at temperatures between 600 C to 1000 C for higher thermal efficiencies which should result in lower electricity cost. To meet future operating temperature and electricity cost requirements, a TES concept utilizing thermochemical cycles (TCs) based on multivalent solid oxides was proposed. The system employs a pair of reduction and oxidation (REDOX) reactions to store and release heat. In the storage step, hot air from the solar receiver is used to reduce the oxidation state of an oxide cation, e.g. Fe3+ to Fe2+. Heat energy is thus stored as chemical bonds and the oxide is charged. To discharge the stored energy, the reduced oxide is re-oxidized in air and heat is released. Air is used as both the heat transfer fluid and reactant and no storage of fluid is needed. This project investigated the engineering and economic feasibility of this proposed TES concept. The DOE storage cost and LCOE targets are $15/kWh and $0.09/kWh respectively. Sixteen pure oxide cycles were identified through thermodynamic calculations and literature information. Data showed the kinetics of re-oxidation of the various oxides to be a key barrier to implementing the proposed concept. A down selection was carried out based on operating temperature, materials costs and preliminary laboratory measurements. Cobalt oxide, manganese oxide and barium oxide were selected for developmental studies to improve their REDOX reaction kinetics. A novel approach utilizing mixed oxides to improve the REDOX kinetics of the selected oxides was proposed. It partially replaces some of the primary oxide cations with selected secondary cations. This causes a lattice charge imbalance and increases the anion vacancy density. Such vacancies enhance the ionic mass transport and lead to faster re-oxidation. Reoxidation fractions of Mn3O4 to Mn2O3 and CoO to Co3O4 were improved by up to 16 fold through the addition of a secondary oxide. However, no improvement was obtained in barium based mixed oxides. In addition to enhancing the short term re-oxidation kinetics, it was found that the use of mixed oxides also help to stabilize or even improve the TES properties after long term thermal cycling. Part of this improvement could be attributed to a reduced grain size in the mixed oxides. Based on the measurement results, manganese-iron, cobalt-aluminum and cobalt iron mixed oxides have been proposed for future engineering scale demonstration. Using the cobalt and manganese mixed oxides, we were able to demonstrate charge and discharge of the TES media in both a bench top fixed bed and a rotary kiln-moving bed reactor. Operations of the fixed bed configuration are straight forward but require a large mass flow rate and higher fluid temperature for charging. The rotary kiln makes direct solar irradiation possible and provides significantly better heat transfer, but designs to transport the TES oxide in and out of the reactor will need to be defined. The final reactor and system design will have to be based on the economics of the CSP plant. A materials compatibility study was also conducted and it identified Inconel 625 as a suitable high temperature engineering material to construct a reactor holding either cobalt or manganese mixed oxides. To assess the economics of such a CSP plant, a packed bed reactor model was established as a baseline. Measured cobalt-aluminum oxide reaction kinetics were applied to the model and the influences of bed properties and process parameters on the overall system design were investigated. The optimal TES system design was found to be a network of eight fixed bed reactors at 18.75 MWth each with charge and

PROJECT STAFF

2011-10-31T23:59:59.000Z

355

The Influence of Woodlot Size and Location in Suburban and Rural Matrices on Bird Species Richness and Individual Abundance.  

E-Print Network (OSTI)

??This study assessed the influence of woodlot area and matrix composition on bird species richness and individual abundance. Bird surveys were conducted in winter 2004 (more)

Chartier, Neil Allen

2006-01-01T23:59:59.000Z

356

Sneak peek at electrofuels: Geobacter team aims for bio-based solution to solar energy storage  

E-Print Network (OSTI)

Sneak peek at electrofuels: Geobacter team aims for bio-based solution to solar energy storage a hybrid of solar and bio-power and also solve the most perplexing problem facing solar energy: energy compounds, and oxygen is released as a byproduct," Lovley explains. Solar energy powers the microbes

Lovley, Derek

357

Metallic Power Inc | Open Energy Information  

Open Energy Info (EERE)

Metallic Power Inc Metallic Power Inc Jump to: navigation, search Name Metallic Power Inc Place Carlsbad, California Zip CA 92009- Product Metallic Power, which closed down in September 2004, was focused on remote and distributed power solutions based on zinc-air fuel cell technology. Coordinates 31.60396°, -100.641609° 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":31.60396,"lon":-100.641609,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

358

American Power: Order (2010-CE-0911) | Department of Energy  

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

Power: Order (2010-CE-0911) Power: Order (2010-CE-0911) American Power: Order (2010-CE-0911) October 5, 2010 DOE issued an Order and entered into a Compromise Agreement with American Power Solutions, Inc. American Power had not certified compliance with the energy conservation standards for a general service flurorescent lamp it advertised on its website as manufactured by American Power. American Power notified DOE that it does not manufacture, import, or private label this model, but instead purchases it from GE and MaxLite. The Order adopted a Compromise Agreement, which reflected settlement terms between DOE and American Power. American Power: Order (2010-CE-0911) More Documents & Publications Westinghouse Lighting: Order (2010-CE-09/1001) Philips: Order (2012-SE-2605) Simkar: Order (2012-SE-5408)

359

American Power: Order (2010-CE-0911) | Department of Energy  

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

American Power: Order (2010-CE-0911) American Power: Order (2010-CE-0911) American Power: Order (2010-CE-0911) October 5, 2010 DOE issued an Order and entered into a Compromise Agreement with American Power Solutions, Inc. American Power had not certified compliance with the energy conservation standards for a general service flurorescent lamp it advertised on its website as manufactured by American Power. American Power notified DOE that it does not manufacture, import, or private label this model, but instead purchases it from GE and MaxLite. The Order adopted a Compromise Agreement, which reflected settlement terms between DOE and American Power. American Power: Order (2010-CE-0911) More Documents & Publications Westinghouse Lighting: Order (2010-CE-09/1001) Maxlite: Order (2010-CE-2701)

360

Photovoltaic Power Generation in the Stellar Environments  

E-Print Network (OSTI)

In this paper we have studied the problem of photovoltaic power generation near selected stars in the solar neighborhood. The nature of the optical radiation from a star will depend on its luminosity,HR classification and spectral characteristics. The solar celloperation in the habitable zones of the stars is similar to AM1.0 operation near earth.Thecurrent space solar cell technology can be adopted for power generation near G,K and Mtype stars. Silicon solar cells with good near IR response are particularly suitable in theenvironments of M type stars which are most abundant in the universe. . Photovoltaicpower generation near binary stars like Sirius and Alpha Centauri is also discussed.

Girish, T E

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" 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

Photovoltaic Power Generation in the Stellar Environments  

E-Print Network (OSTI)

In this paper we have studied the problem of photovoltaic power generation near selected stars in the solar neighborhood. The nature of the optical radiation from a star will depend on its luminosity,HR classification and spectral characteristics. The solar celloperation in the habitable zones of the stars is similar to AM1.0 operation near earth.Thecurrent space solar cell technology can be adopted for power generation near G,K and Mtype stars. Silicon solar cells with good near IR response are particularly suitable in theenvironments of M type stars which are most abundant in the universe. . Photovoltaicpower generation near binary stars like Sirius and Alpha Centauri is also discussed.

T. E. Girish; S. Aranya

2010-12-03T23:59:59.000Z

362

NETL: Coal & Power Systems - Contacts  

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

& Power Systems & Power Systems RD&D Clean Coal Program Vision An energy-secure United States that can tap the full potential of all its energy resources, including coal. Mission Ensure the availability of ultra-clean (near-zero emissions), abundant, low cost domestic energy from coal to fuel economic prosperity, strengthen energy security, and enhance environmental quality. NETL manages an RD&D portfolio that is designed to remove environmental concerns over the future use of coal by developing revolutionary, near-zero-emissions coal technology. In partnership with the private sector, technology developments are focused on maximizing efficiency and environmental performance while driving down the cost for these new technologies. RD&D efforts focus on near-term developments to enhance the capabilities of

363

Power Tower Systems for Concentrating Solar Power  

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

In power tower concentrating solar power systems, numerous large, flat, sun-tracking mirrors, known as heliostats, focus sunlight onto a receiver at the top of a tall tower. A heat-transfer fluid...

364

Resonant Power Conditioning and Compact Pulse Power ...  

Science Conference Proceedings (OSTI)

... (FEEDBACK) HV RECTIFIER AND FILTER NETWORK ... Los Alamos High Frequency Polyphase Resonant Power Conditioning ... 30 KW Loss ...

2012-10-31T23:59:59.000Z

365

Geothermal Power Development in the Phillippines  

DOE Green Energy (OSTI)

The generation of electric power to meet the needs of industrial growth and dispersal in the Philippines is aimed at attaining self-reliance through availment of indigenous energy resources. The Philippines by virtue of her position in the high-heat flow region has in abundance a number of exploitable geothermal fields located all over the country. Results indicate that the geothermal areas of the Philippines presently in various stages of exploration and development are of such magnitude that they can be relied on to meet a significant portion of the country's power need. Large scale geothermal energy for electric power generation was put into operation last year with the inauguration of two 55-MW geothermal generating units at Tiwi, Albay in Southern Luzon. Another two 55-MW units were added to the Luzon Grid in the same year from Makiling-Banahaw field about 70 kilometers south of Manila. For 1979 alone, therefore, 220-MW of generating capacity was added to the power supply coming from geothermal energy. This year a total of 220-MW power is programmed for both areas. This will bring to 443-MW of installed generating capacity from geothermal energy with 3-MW contributed by the Tongonan Geothermal pilot plant in Tongonan, Leyte, Central Philippines in operation since July 1977. Financial consideration of Philippine experience showed that electric power derived from geothermal energy is competitive with other sources of energy and is a viable source of baseload electric power. Findings have proven the technical and economic acceptability of geothermal energy resources development. To realize the benefits that stem from the utilization of indigenous geothermal resources and in the light of the country's ever increasing electric power demand and in the absence of large commercial oil discovery in the Philippines, geothermal energy resource development has been accelerated anew. The program includes development of eight fields by 1989 by adding five more fields to the currently developed and producing geothermal areas.

Jovellanos, Jose U.; Alcaraz, Arturo; Datuin, Rogelio

1980-12-01T23:59:59.000Z

366

Single-Phase Active Boost Rectifier with Power Factor Correction for Wireless Power Transfer Applications  

SciTech Connect

Wireless Power Transfer (WPT) technology is a novel research area in the charging technology that bridges utility and the automotive industries. There are various solutions that are currently being evaluated by several research teams to find the most efficient way to manage the power flow from the grid to the vehicle energy storage system. There are different control parameters that can be utilized to compensate for the change in the impedance. To understand the power flow through the system this paper presents a novel approach to the system model and the impact of different control parameters on the load power. The implementation of an active front-end rectifier on the grid side for power factor control and voltage boost capability for load power regulation is also discussed.

Chinthavali, Madhu Sudhan [ORNL; Onar, Omer C [ORNL; Miller, John M [ORNL; Tang, Lixin [ORNL

2013-01-01T23:59:59.000Z

367

Energy Storage for Power Systems Applications: A Regional Assessment for the Northwest Power Pool (NWPP)  

DOE Green Energy (OSTI)

Wind production, which has expanded rapidly in recent years, could be an important element in the future efficient management of the electric power system; however, wind energy generation is uncontrollable and intermittent in nature. Thus, while wind power represents a significant opportunity to the Bonneville Power Administration (BPA), integrating high levels of wind resources into the power system will bring great challenges to generation scheduling and in the provision of ancillary services. This report addresses several key questions in the broader discussion on the integration of renewable energy resources in the Pacific Northwest power grid. More specifically, it addresses the following questions: a) how much total reserve or balancing requirements are necessary to accommodate the simulated expansion of intermittent renewable energy resources during the 2019 time horizon, and b) what are the most cost effective technological solutions for meeting load balancing requirements in the Northwest Power Pool (NWPP).

Kintner-Meyer, Michael CW; Balducci, Patrick J.; Jin, Chunlian; Nguyen, Tony B.; Elizondo, Marcelo A.; Viswanathan, Vilayanur V.; Guo, Xinxin; Tuffner, Francis K.

2010-04-01T23:59:59.000Z

368

Dynamic power management with hybrid power sources  

Science Conference Proceedings (OSTI)

DPM (Dynamic Power Management) is an effective technique for reducing the energy consumption of embedded systems that is based on migrating to a low power state when possible. While conventional DPM minimizes the energy consumption of the embedded system, ... Keywords: DPM, embedded system, fuel cell, hybrid power

Jianli Zhuo; Chaitali Chakrabarti; Kyungsoo Lee; Naehyuck Chang

2007-06-01T23:59:59.000Z

369

LIFE Power Plant Fusion Power Associates  

E-Print Network (OSTI)

LIFE Power Plant Fusion Power Associates December 14, 2011 Mike Dunne LLNL #12;NIf-1111-23714.ppt LIFE power plant 2 #12;LIFE delivery timescale NIf-1111-23714.ppt 3 #12;Timely delivery is enabled near-term, NIF based, NIC-derivative fusion performance § 3 allows small, thin Fresnel lenses ­ enables

370

A CHEMICAL ABUNDANCE STUDY OF 10 OPEN CLUSTERS BASED ON WIYN -HYDRA SPECTROSCOPY  

SciTech Connect

We present a detailed chemical abundance study of evolved stars in 10 open clusters based on Hydra multi-object echelle spectra obtained with the WIYN 3.5 m telescope. From an analysis of both equivalent widths and spectrum synthesis, abundances have been determined for the elements Fe, Na, O, Mg, Si, Ca, Ti, Ni, Zr, and for two of the 10 clusters, Al and Cr. To our knowledge, this is the first detailed abundance analysis for clusters NGC 1245, NGC 2194, NGC 2355, and NGC 2425. These 10 clusters were selected for analysis because they span a Galactocentric distance range R{sub gc} {approx} 9-13 kpc, the approximate location of the transition between the inner and outer disks. Combined with cluster samples from our previous work and those of other studies in the literature, we explore abundance trends as a function of cluster R{sub gc}, age, and [Fe/H]. As found previously by us and other studies, the [Fe/H] distribution appears to decrease with increasing R{sub gc} to a distance of {approx}12 kpc and then flattens to a roughly constant value in the outer disk. Cluster average element [X/Fe] ratios appear to be independent of R{sub gc}, although the picture for [O/Fe] is more complicated with a clear trend of [O/Fe] with [Fe/H] and sample incompleteness. Other than oxygen, no other element [X/Fe] exhibits a clear trend with [Fe/H]; likewise, there does not appear to be any strong correlation between abundance and cluster age. We divided clusters into different age bins to explore temporal variations in the radial element distributions. The radial metallicity gradient appears to have flattened slightly as a function of time, as found by other studies. There is also some indication that the transition from the inner disk metallicity gradient to the {approx}constant [Fe/H] distribution of the outer disk occurs at different Galactocentric radii for different age bins. However, interpretation of the time evolution of radial abundance distributions is complicated by the unequal R{sub gc} and [Fe/H] ranges spanned by clusters in different age bins.

Jacobson, Heather R. [Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48823 (United States); Pilachowski, Catherine A. [Department of Astronomy, Indiana University, Bloomington, IN 47405 (United States); Friel, Eileen D., E-mail: jacob189@msu.edu, E-mail: catyp@astro.indiana.edu, E-mail: edfriel@mac.com [Department of Astronomy, Boston University, Boston, MA 02215 (United States)

2011-08-15T23:59:59.000Z

371

Application of self-organizing systems in power systems control  

Science Conference Proceedings (OSTI)

The European electrical transmission network is operated increasingly close to its operational limits due to market integration and increased feed-in by renewable energies. For this reason, innovative solutions for a reliable, secure and efficient network ... Keywords: FACTS, multiagent systems, power flow control, power system control, self-organizing systems, smart grids

Sven C. Mller; Ulf Hger; Christian Rehtanz; Horst F. Wedde

2012-06-01T23:59:59.000Z

372

Advanced Underground Vehicle Power and Control Fuelcell Mine Locomotive  

E-Print Network (OSTI)

-- Tethered -- Diesel -- Battery · Solution by fuelcells will provide cost offsets -- Lower recurring costs -- Higher availability -- Lower ventilation costs A PROBLEM AND OPPORTUNITY Underground Traction Power #12 available battery-powered 4-ton locomotive · Remove traction battery module and use existing electric drive

373

ATPC: adaptive transmission power control for wireless sensor networks  

Science Conference Proceedings (OSTI)

Extensive empirical studies presented in this paper confirm that the quality of radio communication between low power sensor devices varies significantly with time and environment. This phenomenon indicates that the previous topology control solutions, ... Keywords: adaptive, feedback, link quality, transmission power control, wireless sensor network

Shan Lin; Jingbin Zhang; Gang Zhou; Lin Gu; John A. Stankovic; Tian He

2006-10-01T23:59:59.000Z

374

Financing Turnkey Efficiency Solutions for Small Buildings and Small Portfolios  

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

Financing Turnkey Efficiency Financing Turnkey Efficiency Solutions for Small Buildings and Small Portfolios Rois Langner NREL Rois.Langner@nrel.gov 303-275-4329 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: Disproportionate transaction costs, lack of purchasing power, financial risk, insufficient organizational capacity, and lack of technical expertise inhibit the adoption of energy efficiency measures in the small building and small portfolio (SBSP) sector at

375

Exact Solution of the Isovector Neutron-Proton Pairing Hamiltonian  

SciTech Connect

The complete exact solution of the T=1 neutron-proton pairing Hamiltonian is presented in the context of the SO(5) Richardson-Gaudin model with nondegenerate single-particle levels and including isospin symmetry-breaking terms. The power of the method is illustrated with a numerical calculation for {sup 64}Ge for a pf+g{sub 9/2} model space which is out of reach of modern shell-model codes.

Dukelsky, J.; Errea, B.; Lerma, S.H. [Instituto de Estructura de la Materia, CSIC. Serrano 123, 28006 Madrid (Spain); Gueorguiev, V.G. [Lawrence Livermore National Laboratory, Livermore, California (United States); Institute of Nuclear Research and Nuclear Energy, BAS, Sofia 1784 (Bulgaria); Van Isacker, P. [Grand Accelerateur National d'Ions Lourds, BP 55027, F-14076 Caen Cedex 5 (France); Dimitrova, S. [Institute of Nuclear Research and Nuclear Energy, BAS, Sofia 1784 (Bulgaria)

2006-02-24T23:59:59.000Z

376

Power and energy  

Science Conference Proceedings (OSTI)

The author examines the development of nuclear power throughout the world, commencing with proposals for California, USA. Evidence that nuclear power remains viable in Asia include Japan Atomic Power Co.'s announcement of plans for a 1300 MW reactor ...

G. Zorpette

1995-01-01T23:59:59.000Z

377

Solar powered desalination system  

E-Print Network (OSTI)

photon capture area and electrical power consumption. Bothcapture area (m 2 ) Electrical power consumption (kWh/kg HType 2 Type 3 Type 4 Electrical power consumption for these

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

378

PowerPoint Presentation  

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

power module - High temperature operation - Size reduction - 3-kW 120V single-phase inverter (250 C+) Input Power Output Power > 90% efficiency (estimated) Phase I: Very High...

379

Natural abundance radiocarbon studies of dissolved organic carbon (DOC) in the marine environment  

E-Print Network (OSTI)

power of radiocarbon in biogeochemical studies of the marinepower of radiocarbon in biogeochemical studies of the marine

De Jesus, Roman Paul

2008-01-01T23:59:59.000Z

380

Natural Abundance Radiocarbon Studies of Dissolved Organic Carbon (DOC) in the Marine Environment  

E-Print Network (OSTI)

power of radiocarbon in biogeochemical studies of the marinepower of radiocarbon in biogeochemical studies of the marine

de Jesus, Roman P

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" 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

Organic thin film prehistory: looking towards solution phase aggregation |  

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

Organic thin film prehistory: looking towards solution phase aggregation Organic thin film prehistory: looking towards solution phase aggregation Wednesday, November 6, 2013 - 3:00pm SLAC, Redtail Hawk Conference Room 108A Christopher Tassone, SSRL Polymer bulk heterojunction (BHJ) solar cells have attracted significant attention in industry and academia because of their potential for achieving large-area, light-weight, and flexible photovoltaic devices through cost-effective solution deposition techniques. These devices consist of a blend of an absorbing polymer and an electron accepting fullerene, the molecular packing and phase segregation of which heavily influence power conversion efficiency by effecting important processes such as exciton splitting, charge transport, and recombination. Understanding and utilization of molecular interactions to predicatively control the

382

Finding Solutions to Solar's Soft Cost Dilemma | Department of Energy  

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

Finding Solutions to Solar's Soft Cost Dilemma Finding Solutions to Solar's Soft Cost Dilemma Finding Solutions to Solar's Soft Cost Dilemma January 8, 2013 - 1:22pm Addthis Brian Webster installs rooftop solar panels on a home in Englewood, Colorado. The Energy Department is working to streamline rooftop solar installations so that its faster, easier and cheaper for Americans to go solar. | Photo courtesy of Dennis Schroeder, NREL. Brian Webster installs rooftop solar panels on a home in Englewood, Colorado. The Energy Department is working to streamline rooftop solar installations so that its faster, easier and cheaper for Americans to go solar. | Photo courtesy of Dennis Schroeder, NREL. Minh Le Minh Le Program Manager, Solar Program Learn More about Solar's Soft Costs Check out Clean Power Finance's study on solar's soft costs here.

383

SolarOne Solutions Inc | Open Energy Information  

Open Energy Info (EERE)

Solutions Inc Solutions Inc Jump to: navigation, search Name SolarOne Solutions Inc Place Needham, Massachusetts Zip 2494 Sector Solar Product Massachusetts-based manufacturer and retailer of solar powered LED lighting systems. Coordinates 42.28107°, -71.236054° 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":42.28107,"lon":-71.236054,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

384

Science to Energy Solutions | ORNL  

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

for pressure vessels applications and are currently used worldwide in power plant boilers ORNL HT-UPS 'Lean" Austenitic Stainless Steels-Licensed "Lab-on-a-Chip separtation...

385

Powerit Solutions | Open Energy Information  

Open Energy Info (EERE)

Powerit Solutions Powerit Solutions Jump to: navigation, search Name Powerit Solutions Address 568 First Ave South Place Seattle, Washington Zip 98104 Sector Efficiency Product Allows business customers to control their energy usage online Website http://www.poweritsolutions.co Coordinates 47.5977906°, -122.3341632° 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":47.5977906,"lon":-122.3341632,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

386

SOLAR WIND HELIUM ABUNDANCE AS A FUNCTION OF SPEED AND HELIOGRAPHIC LATITUDE: VARIATION THROUGH A SOLAR CYCLE  

E-Print Network (OSTI)

SOLAR WIND HELIUM ABUNDANCE AS A FUNCTION OF SPEED AND HELIOGRAPHIC LATITUDE: VARIATION THROUGH A SOLAR CYCLE Justin C. Kasper,1 Michael L. Stevens, and Alan J. Lazarus Kavli Institute for Astrophysics of the variation of the relative abundance of helium to hydrogen in the solar wind as a function of solar wind

Richardson, John

387

Abundances at High Redshifts: the Chemical Enrichment History of Damped Lyman-alpha Galaxies  

E-Print Network (OSTI)

Damped Lyman-alpha absorption systems found in the spectra of high redshift quasars are believed to trace the interstellar gas in high redshift galaxies. In this paper, we study the elemental abundances of C, N, O, Al, Si, S, Cr, Mn, Fe, Ni, and Zn in a sample of 14 damped Lyman-alpha systems using high quality echelle spectra of quasars obtained with the 10m Keck telescope. These abundances are combined with similar measurements in the literature in order to investigate the chemical evolution of damped Lyman-alpha galaxies in the redshift range 0.7nature of the star formation process in damped Lyman-alpha galaxies, and the nature of damped Lyman-alpha galaxies themselves.

Limin Lu; Wallace L. W. Sargent; Thomas A. Barlow

1996-06-07T23:59:59.000Z

388

LITHIUM ABUNDANCE AS A PREDICTOR OF MASS AND AGE IN SOLAR-ANALOG STARS  

SciTech Connect

In order to estimate the mass and age of stars, we construct a grid of stellar models for eight solar-analog stars including diffusion and rotation-induced mixing for the given ranges of stellar mass, metallicity, and rotational rate. By combining stellar models with observational data including lithium abundance, we obtain more accurate estimations of mass and age for solar-analog stars. The results indicate that stars HIP 56948, HIP 73815, and HIP 78399 are three possible solar twins. Furthermore, we find that lithium depletion due to extra-mixing in solar analogs strongly depends on mass, metallicity, and rotational history. Therefore, lithium abundance can be used as a good constraint in stellar modeling.

Li, T. D.; Bi, S. L.; Liu, K.; Tian, Z. J.; Ge, Z. S. [Department of Astronomy, Beijing Normal University, Beijing 100875 (China); Chen, Y. Q. [Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012 (China)

2012-02-20T23:59:59.000Z

389

Abundance of green tree frogs and insects in artificial canopy gaps in a bottomland hardwood forest.  

SciTech Connect

Horn, Scott, James L. Hanula, Michael D. Ulyshen, and John C. Kilgo. 2005. Abundance of green tree frogs and insects in artificial canopy gaps in a bottomland hardwood forest. Am. Midl. Nat. 153:321-326. Abstract: We found more green tree frogs (Hyla cinerea) in canopy gaps than in closed canopy forest. Of the 331 green tree frogs observed, 88% were in canopy gaps. Likewise, higher numbers and biomasses of insects were captured in the open gap habitat. Flies were the most commonly collected insect group accounting for 54% of the total capture. These data suggest that one reason green tree frogs were more abundant in canopy gaps was the increased availability of prey and that small canopy gaps provide early successional habitats that are beneficial to green tree frog populations.

Horn, Scott; Hanula, James L.; Ulyshen, Michael D.; Kilgo, John C.

2005-01-01T23:59:59.000Z

390

Green Power Network: Green Power Markets Overview  

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

Green Markets Green Markets Search Search Help More Search Options Search Site Map News TVA Seeks 126 MW of Renewables in 2014 December 2013 More News More News Subscribe to E-Mail Update Subscribe to e-mail update Events EPA Webinar - The Power of Aggregated Purchasing: How to Green Your Electricity Supply & Save Money January 15, 2014 1:00-2:00 p.m. ET Previous Webinars More News Features Green Power Market Status Report (2011 Data) Featured Green Power Reports Green Pricing Green Power Marketing Green Certificates Carbon Offsets State Policies Overview The essence of green power marketing is to provide market-based choices for electricity consumers to purchase power from environmentally preferred sources. The term "green power" is used to define power generated from renewable energy sources, such as wind and solar power, geothermal, hydropower and various forms of biomass. Green power marketing has the potential to expand domestic markets for renewable energy technologies by fostering greater availability of renewable electric service options in retail markets. Although renewable energy development has traditionally been limited by cost considerations, customer choice allows consumer preferences for cleaner energy sources to be reflected in market transactions. In survey after survey, customers have expressed a preference and willingness to pay more, if necessary, for cleaner energy sources. You can find more information about purchase options on our "Buying Green Power" page.

391

NAVAL RESEARCH LABORATORY Information Technology Solutions  

power (CHP) or emergency backup power Small, High Efficiency, Recuperated Ceramic Turboshaft Engine NAVAL RESEARCH LABORATORY TECHNOLOGY T RANSFER ...

392

Sunrise II Power Plant  

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

Sunrise Power Company, LLC (Sunrise), has planned the modification of an existing power plant project to increase its generation capacity by 265 megawatts by 2003. The initial...

393

Siemens Power Generation, Inc.  

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

Presented at the 2005 Pittsburgh Coal Conference Siemens Power Generation, Inc. Page 1 of 10 Siemens Power Generation, Inc., All Rights Reserved Development of a Catalytic...

394

Laser Radiometry: Powering Up  

Science Conference Proceedings (OSTI)

... Radiometry: Powering Up. June 11, 2012. ... Contact: Marla Dowell 303-497- 7455. Chris Cromer examines one of PML's next-generation power meters ...

2012-06-14T23:59:59.000Z

395

Southwestern Power Administration  

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

FOIAPrivacy Act Submit a FOIA Request DOE FOIA Requester Service Center Electronic Reading Room FOIA Links Power Marketing Administrations' FOIA Links Bonneville Power...

396

PowerPoint Presentation  

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

302011 Essential PV power plant features Reliable power conversion Extensive service network Remote monitoring & diagnostics Plant level control Advanced grid-friendly features...

397

Radioisotope Power Generation  

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

Radioisotope Power Generation Long lived power sources are needed for equipment that is too remote or inaccessible for replacement. By choosing a radioactive element with a long...

398

Electric Power Monthly  

U.S. Energy Information Administration (EIA)

Net Generation by Energy Source: Commercial Combined Heat and Power Sector . Table 1.5. Net Generation by Energy Source: Industrial Combined Heat and Power Sector .

399

Nuclear Fusion Power  

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

Power Nuclear fusion reactors, if they can be made to work, promise virtually unlimited power for the indefinite future. This is because the fuel, isotopes of hydrogen, are...

400

Electrolytes for power sources  

DOE Patents (OSTI)

Electrolytes for power sources, particularly alkaline and acidic power sources, comprising benzene polysulfonic acids and benzene polyphosphonic acids or salts of such acids.

Doddapaneni, Narayan (Albuquerque, NM); Ingersoll, David (Albuquerque, NM)

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "abundant power solutions" 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

Electrolytes for power sources  

DOE Patents (OSTI)

Electrolytes are disclosed for power sources, particularly alkaline and acidic power sources, comprising benzene polysulfonic acids and benzene polyphosphonic acids or salts of such acids. 7 figures.

Doddapaneni, N.; Ingersoll, D.

1995-01-03T23:59:59.000Z

402

PowerPoint Presentation  

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

CT (USA), international presence in USA, Canada, Germany (Fraunhofer, IKTS) and South Korea (Posco) Delivering Direct FuelCell (DFC ) power plants for On-Site Power and...

403

Electrodialysis operation with buffer solution  

DOE Patents (OSTI)

A new method for improving the efficiency of electrodialysis (ED) cells and stacks, in particular those used in chemical synthesis. The process entails adding a buffer solution to the stack for subsequent depletion in the stack during electrolysis. The buffer solution is regenerated continuously after depletion. This buffer process serves to control the hydrogen ion or hydroxide ion concentration so as to protect the active sites of electrodialysis membranes. The process enables electrodialysis processing options for products that are sensitive to pH changes.

Hryn, John N. (Naperville, IL); Daniels, Edward J. (Orland Park, IL); Krumdick, Greg K. (Crete, IL)

2009-12-15T23:59:59.000Z

404

Diffusive separation of noble gases and noble gas abundance patterns in sedimentary rocks  

SciTech Connect

The mechanisms responsible for noble gas concentrations, abundance patterns, and strong retentivity in sedimentary lithologies remain poorly explained. Diffusion-controlled fractionation of noble gases is modeled and examined as an explanation for the absolute and relative abundances of noble gases observed in sediments. Since the physical properties of the noble gases are strong functions of atomic mass, the individual diffusion coefficients, adsorption coefficients and atomic radii combine to impede heavy noble gas (Xe) diffusion relative to light noble gas (Ne) diffusion. Filling of lithic grains/half-spaces by diffusive processes thus produces Ne enrichments in the early and middle stages of the filling process with F(Ne) values similar to that observed in volcanic glasses. Emptying lithic grains/half-spaces produces a Xe-enriched residual in the late (but not final) stages of the process producing F(Xe) values similar to that observed in shales. 'Exotic but unexceptional' shales that exhibit both F(Ne) and F(Xe) enrichments can be produced by incomplete emptying followed by incomplete filling. This mechanism is consistent with literature reported noble gas abundance patterns but may still require a separate mechanism for strong retention. A system of labyrinths-with-constrictions and/or C-, Si-nanotubes when combined with simple adsorption can result in stronger diffusive separation and non-steady-state enrichments that persist for longer times. Enhanced adsorption to multiple C atoms inside C-nanotubes as well as dangling functional groups closing the ends of nanotubes can provide potential mechanisms for 'strong retention'. We need new methods of examining noble gases in rocks to determine the role and function of angstrom-scale structures in both the diffusive enrichment process and the 'strong retention' process for noble gas abundances in terrestrial rocks.

Torgersen, T.; Kennedy, B.M.; van Soest, M.C.

2004-06-14T23:59:59.000Z

405

Food abundance does not determine bird use of early-successional habitat.  

SciTech Connect

Abstract. Few attempts have been made to experimentally address the extent to which temporal or spatial variation in food availability influences avian habitat use. We used an experimental approach to investigate whether bird use differed between treated (arthropods reduced through insecticide application) and control (untreated) forest canopy gaps within a bottomland hardwood forest in the Upper Coastal Plain of South Carolina, USA. Gaps were two- to three-year-old group selection timber harvest openings of three sizes (0.13, 0.26, and 0.50 ha). Our study was conducted during four bird use periods (spring migration, breeding, post-breeding, and fall migration) in 2002 and 2003. Arthropods were reduced in treated gaps by 68% in 2002 and 73% in 2003. We used mist-netting captures and foraging attack rates to assess the influence of arthropod abundance on avian habitat use. Evidence that birds responded to arthropod abundance was limited and inconsistent. In 2002, we generally captured more birds in treated gaps of the smallest size (0.13 ha) and fewer birds in treated gaps of the larger sizes. In 2003, we recorded few differences in the number of captures in treated and control gaps. Foraging attack rates generally were lower in treated than in control gaps, indicating that birds were able to adapt to the reduced food availability and remain in treated gaps. We conclude that arthropod abundance was not a proximate factor controlling whether forest birds used our gaps. The abundance of food resources may not be as important in determining avian habitat selection as previous research has indicated, at least for passerines in temperate subtropical regions.

Champlin, Tracey B.; Kilgo, John C.; Moorman, Christopher E.

2009-06-01T23:59:59.000Z

406

Relationship of Course Woody Debris to Red-Cockaded Woodpecker Prey Diversity and Abundance  

DOE Green Energy (OSTI)

The abundance of diversity of prey commonly used by the red-cockaded woodpecker were monitored in experimental plots in which course woody debris was manipulated. In one treatment, all the woody debris over four inches was removed. In the second treatment, the natural amount of mortality remained intact. The overall diversity of prey was unaffected; however, wood roaches were significantly reduced by removal of woody debris. The latter suggests that intensive utilizations or harvesting practices may reduce foraging.

Horn, G.S.

1999-09-03T23:59:59.000Z

407

A Solid-State NMR Method for Solution of Zeolite Crystal Darren H. Brouwer, Richard J. Darton, Russell E. Morris, and Malcolm H. Levitt*,  

E-Print Network (OSTI)

A Solid-State NMR Method for Solution of Zeolite Crystal Structures Darren H. Brouwer, Richard J crystal structures that combines powder XRD and nuclear magnetic resonance (NMR) spectroscopy in which NMR, which probes the distance-dependent dipolar interactions between naturally abundant 29 Si nuclei

Levitt, Malcolm H.

408

Utility Response to Railroad Market Power: Assessment of Options  

Science Conference Proceedings (OSTI)

Coal transportation is one of the largest and potentially least competitive costs of power generation. This report reviews possible strategies and recourse available to utilities to counter railroad market power. The implosion of the major carriers into just two major companies in the east and the west heralds an era of duopoly pricing for which no single solution presents itself, past strategies may no longer apply, and the prospect of burgeoning power transactions may offer surprisingly little help to ...

1997-10-31T23:59:59.000Z

409

Power-law Spatial Dispersion from Fractional Liouville Equation  

E-Print Network (OSTI)

A microscopic model in the framework of fractional kinetics to describe spatial dispersion of power-law type is suggested. The Liouville equation with the Caputo fractional derivatives is used to obtain the power-law dependence of the absolute permittivity on the wave vector. The fractional differential equations for electrostatic potential in the media with power-law spatial dispersion are derived. The particular solutions of these equations for the electric potential of point charge in this media are considered.

Vasily E. Tarasov

2013-07-18T23:59:59.000Z

410

Performance Testing of a Flywheel-Based Uninterruptible Power Supply  

Science Conference Proceedings (OSTI)

Performance testing of a fully integrated flywheel-based uninterruptible power supply (UPS) confirmed that the Caterpillar UPS 250 unit offers an innovative power quality solution for a broad range of industrial and commercial applications. It provides stored energy, immediately available, to protect critical loads against temporary power disturbances such as outages, sags, and surges. This report provides complete details of performance testing of the UPS system, including test instrumentation and setup...

2002-07-17T23:59:59.000Z

411

THE SOLAR FLARE CHLORINE ABUNDANCE FROM RESIK X-RAY SPECTRA  

SciTech Connect

The abundance of chlorine is determined from X-ray spectra obtained with the RESIK instrument on CORONAS-F during solar flares between 2002 and 2003. Using weak lines of He-like Cl, Cl XVI, between 4.44 and 4.50 A, and with temperatures and emission measures from GOES on an isothermal assumption, we obtained A(Cl) = 5.75 {+-} 0.26 on a scale A(H) = 12. The uncertainty reflects an approximately a factor of two scatter in measured line fluxes. Nevertheless, our value represents what is probably the best solar determination yet obtained. It is higher by factors of 1.8 and 2.7 than Cl abundance estimates from an infrared sunspot spectrum and nearby H II regions. The constancy of the RESIK abundance values over a large range of flares (GOES class from below C1 to X1) argues for any fractionation that may be present in the low solar atmosphere to be independent of the degree of solar activity.

Sylwester, B.; Sylwester, J. [Space Research Centre, Polish Academy of Sciences, 51-622, Kopernika 11, Wroclaw (Poland); Phillips, K. J. H. [Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT (United Kingdom); Kuznetsov, V. D., E-mail: bs@cbk.pan.wroc.pl, E-mail: js@cbk.pan.wroc.pl, E-mail: kjhp@mssl.ucl.ac.uk, E-mail: kvd@izmiran.ru [Institute of Terrestrial Magnetism and Radiowave Propagation (IZMIRAN), Troitsk, Moscow (Russian Federation)

2011-09-01T23:59:59.000Z

412

Abundance anomalies in pre-main-sequence stars: Stellar evolution models with mass loss  

E-Print Network (OSTI)

The effects of atomic diffusion on internal and surface abundances of A and F pre-main-sequence stars with mass loss are studied in order to determine at what age the effects materialize, as well as to further understand the processes at play in HAeBe and young ApBp stars. Self-consistent stellar evolution models of 1.5 to 2.8Msun with atomic diffusion (including radiative accelerations) for all species within the OPAL opacity database were computed and compared to observations of HAeBe stars. Atomic diffusion in the presence of weak mass loss can explain the observed abundance anomalies of pre-main-sequence stars, as well as the presence of binary systems with metal rich primaries and chemically normal secondaries such as V380 Ori and HD72106. This is in contrast to turbulence models which do not allow for abundance anomalies to develop on the pre-main-sequence. The age at which anomalies can appear depends on stellar mass. For A and F stars, the effects of atomic diffusion can modify both the internal and s...

Vick, M; Richer, J; Richard, O

2010-01-01T23:59:59.000Z

413

Benchmark cool companions: New ages and abundances for the PZ Tel system  

E-Print Network (OSTI)

We present new ages and abundance measurements for the pre-main sequence star PZ Tel. PZ Tel was recently found to host a young and low-mass companion. Using FEROS spectra we have measured atomic abundances (e.g. Fe and Li) and chromospheric activity for PZ Tel and used these to obtain metallicity and age estimates for the companion. We find PZ Tel to be a rapidly rotating (vsini=73\\pm5km/s), ~solar metallicity star (logN(Fe)=-4.37\\pm0.06dex or [Fe/H]=0.05\\pm0.20dex) with a measured mean logR'HK of -4.12. We measure a NLTE lithium abundance of logN(Li)=3.1\\pm0.1dex, which from depletion models gives rise to an age of 7+4-2 Myrs for the system. The measured chromospheric activity returns an age of 26\\pm2Myrs, as does fitting pre-main sequence evolutionary tracks (Tau_evol=22\\pm3Myrs), both of which are in disagreement with the lithium age. We speculate on reasons for this difference and introduce new models for lithium depletion that incorporates both rotation and magnetic field affects. We also synthesize sol...

Jenkins, James S; Ivanyuk, Oleksiy; Gallardo, Jose; Jones, Matias I; Day-Jones, Avril C; Jones, Hugh R A; Ruiz, Maria-Teresa; Pinfield, David J; Yakovina, Larissa

2011-01-01T23:59:59.000Z

414

The Solar Flare Chlorine Abundance from RESIK X-ray Spectra  

E-Print Network (OSTI)

The abundance of chlorine is determined from X-ray spectra obtained with the RESIK instrument on {\\em CORONAS-F} during solar flares between 2002 and 2003. Using weak lines of He-like Cl, \\ion{Cl}{16}, between 4.44 and 4.50 \\AA, and with temperatures and emission measures from {\\em GOES} on an isothermal assumption, we obtained $A({\\rm Cl}) = 5.75 \\pm 0.26$ on a scale $A({\\rm H}) = 12$. The uncertainty reflects an approximately factor 2 scatter in measured line fluxes. Nevertheless our value represents what is probably the best solar determination yet obtained. It is higher by factors of 1.8 and 2.7 than Cl abundance estimates from an infrared sunspot spectrum and nearby \\ion{H}{2} regions. The constancy of the RESIK abundance values over a large range of flares ({\\em GOES} class from below C1 to X1) argues for any fractionation that may be present in the low solar atmosphere to be independent of the degree of solar activity.

Sylwester, B; Sylwester, J; Kuznetsov, V D

2011-01-01T23:59:59.000Z

415

Fe and Al Abundances for 180 Red Giants in the Globular Cluster Omega Centauri (NGC 5139)  

E-Print Network (OSTI)

We present radial velocities, Fe, and Al abundances for 180 red giant branch (RGB) stars in the Galactic globular cluster Omega Centauri ($\\omega$ Cen). The majority of our data lie in the range 11.0$Al/Fe] ratios exhibit large star--to--star scatter for all populations, with the more than 1.0 dex range of [Al/Fe] decreasing for stars more metal--rich than [Fe/H]$\\sim$--1.4. The minimum [Al/Fe] abundance observed for all metallicity populations is [Al/Fe]$\\sim$+0.15. The maximum abundance of log $\\epsilon$(Al) is reached for stars with [Fe/H]$\\sim$--1.4 and does not increase further with stellar metallicity. We interpret these results as evidence for type II SNe providing the minimum [Al/Fe] ratio and a mass spectrum of intermediate mass asymptotic giant branch stars causing the majority of the [Al/Fe] scatter. These results seem to fit in the adopted scheme that star formation occurred in $\\omega$ Cen over $>$1 Gyr.

Christian I. Johnson; Catherine A. Pilachowski; Jennifer Simmerer; Dustin Schwenk

2008-04-16T23:59:59.000Z

416

PNE Renewable Solutions JV | Open Energy Information  

Open Energy Info (EERE)

Renewable Solutions JV Jump to: navigation, search Name PNE & Renewable Solutions JV Place Delaware Sector Wind energy Product Delaware-based limited liability company and JV...

417

Tribal Renewable Energy Solutions and Partnerships: Collaborating...  

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

Tribal Renewable Energy Solutions and Partnerships: Collaborating Through the Headwinds of Change Tribal Renewable Energy Solutions and Partnerships: Collaborating Through the...

418

Quantum Energy Solutions | Open Energy Information  

Open Energy Info (EERE)

Energy Solutions Place Rancho Cordova, California Zip 95742 Product California-based energy management company that was formed in 1974. References Quantum Energy Solutions1...

419

Nextreme Thermal Solutions Inc | Open Energy Information  

Open Energy Info (EERE)

Nextreme Thermal Solutions Inc Jump to: navigation, search Name Nextreme Thermal Solutions Inc Place North Carolina Zip 27709-3981 Product String representation "Manufactures ad...

420

AFV Solutions Inc | Open Energy Information  

Open Energy Info (EERE)

Inc Place Mesa, Arizona Zip 85210 Product AFV Solutions is a manufacturer of electric-hybrid buses and energy conversion systems for cars. References AFV Solutions Inc1...

Note: This page contains sample records for the topic "abundant power solutions" 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

Solar amp Electric Solutions | Open Energy Information  

Open Energy Info (EERE)

Solar amp Electric Solutions Jump to: navigation, search Name Solar & Electric Solutions Place Santa Cruz, California Zip 95062 Sector Solar Product Small solar installation firm...

422

Green Heat Solutions Limited | Open Energy Information  

Open Energy Info (EERE)

Heat Solutions Limited Jump to: navigation, search Name Green Heat Solutions Limited Sector Marine and Hydrokinetic Website http:http:www.greenheating Region Scotland LinkedIn...

423

AG Solutions Inc | Open Energy Information  

Open Energy Info (EERE)

AG Solutions Inc. Place Gladstone, Michigan Product 10Mgpy biodiesel producer in Gladstone, Michigan. References AG Solutions Inc.1 LinkedIn Connections CrunchBase Profile No...

424

Webinar Presentation: Energy Storage Solutions for Microgrids...  

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

Webinar Presentation: Energy Storage Solutions for Microgrids (November 2012) Webinar Presentation: Energy Storage Solutions for Microgrids (November 2012) On November 7, 2012,...

425

Solar India Solutions | Open Energy Information  

Open Energy Info (EERE)

Solar India Solutions Jump to: navigation, search Name Solar India Solutions Place Visakhapatnam, Andhra Pradesh, India Zip 530016 Sector Efficiency Product Andhra-based energy...

426

Solid Solution Lithium Alloy Cermet Anodes  

E-Print Network (OSTI)

Solid Solution Lithium Alloy Cermet Anodes Thomas J.94720 USA Abstract Lithium-magnesium solid solution alloysHeating mixtures of lithium nitride and magnesium provides a

Richardson, Thomas J.; Chen, Guoying

2006-01-01T23:59:59.000Z

427

Annual Inventory Troubleshooting Checklist Problem Solutions  

E-Print Network (OSTI)

Annual Inventory Troubleshooting Checklist Problem Solutions Duplicate tag number Send email to am;Annual Inventory Troubleshooting Checklist Problem Solutions Personal property Send email to am

Li, Mo

428

Battery Wireless Solutions Inc | Open Energy Information  

Open Energy Info (EERE)

Data Page Edit with form History Share this page on Facebook icon Twitter icon Battery Wireless Solutions Inc Jump to: navigation, search Name Battery & Wireless Solutions...

429

Smarter Grid Solutions | Open Energy Information  

Open Energy Info (EERE)

Smarter Grid Solutions Jump to: navigation, search Name Smarter Grid Solutions Place United Kingdom Product String representation "The SGS technol ... the technology." is too long....

430

Bio Solutions Manufacturing Inc | Open Energy Information  

Open Energy Info (EERE)

search Name Bio Solutions Manufacturing Inc Place Las Vegas, Nevada Zip 89103 Product Waste-to-energy bioremediation developer. References Bio Solutions Manufacturing Inc1...

431

Energy Solutions International | Open Energy Information  

Open Energy Info (EERE)

. References "Energy Solutions International" Retrieved from "http:en.openei.orgwindex.php?titleEnergySolutionsInternational&oldid344882" Categories: Clean Energy...

432

Energy Options Solutions | Open Energy Information  

Open Energy Info (EERE)

Energy Options & Solutions Place Ann Arbor, Michigan Zip 48103 Product Michigan-based alternative energy consultant. References Energy Options & Solutions1 LinkedIn...

433

FT Solutions LLC | Open Energy Information  

Open Energy Info (EERE)

FT Solutions LLC Jump to: navigation, search Name FT Solutions LLC Place South Jordan, Utah Zip 84095 Product JV between Headwaters Technology Innovation Group and Rentech to focus...

434

Wind Park Solutions Arcadia | Open Energy Information  

Open Energy Info (EERE)

Arcadia Jump to: navigation, search Name Wind Park Solutions Arcadia Place Big Sandy, Montana Sector Wind energy Product JV between Wind Park Solutions America and Arcadia...

435

Karnataka Power Corporation Limited and National Thermal Power...  

Open Energy Info (EERE)

Karnataka Power Corporation Limited and National Thermal Power Corporation JV Jump to: navigation, search Name Karnataka Power Corporation Limited and National Thermal Power...

436

Energy Storage & Power Electronics 2008 Peer Review - Power Electronic...  

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

& Power Electronics 2008 Peer Review - Power Electronics (PE) Systems Presentations Energy Storage & Power Electronics 2008 Peer Review - Power Electronics (PE) Systems...

437

Water-Power Development, Conservation of Hydroelectric Power...  

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

Water-Power Development, Conservation of Hydroelectric Power Dams and Works (Virginia) Water-Power Development, Conservation of Hydroelectric Power Dams and Works (Virginia)...

438

Flex power perspectives of indirect power system control through...  

Open Energy Info (EERE)

power perspectives of indirect power system control through dynamic power price (Smart Grid Project) Jump to: navigation, search Project Name Flex power perspectives of indirect...

439

Find the Right Solution for You with Tools from the AFDC | Department of  

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

Find the Right Solution for You with Tools from the AFDC Find the Right Solution for You with Tools from the AFDC Find the Right Solution for You with Tools from the AFDC July 25, 2011 - 11:00am Addthis Shannon Brescher Shea Communications Manager, Clean Cities Program With our current car making all sorts of "interesting" noises, my husband and I have been thinking long and hard about the type of vehicle to purchase in the near future. As I have a personal and professional interest in environmental and social sustainability, I would like to buy a vehicle that uses the least petroleum and emits the fewest greenhouse gases possible. Fortunately, there is an abundance of alternative fuel and fuel efficient vehicles options available. Using the Alternative Fuel and Advanced Technology Vehicle Data Center's (AFDC) Light Duty Vehicle Search, I can

440

Find the Right Solution for You with Tools from the AFDC | Department of  

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

Find the Right Solution for You with Tools from the AFDC Find the Right Solution for You with Tools from the AFDC Find the Right Solution for You with Tools from the AFDC July 25, 2011 - 11:00am Addthis Shannon Brescher Shea Communications Manager, Clean Cities Program With our current car making all sorts of "interesting" noises, my husband and I have been thinking long and hard about the type of vehicle to purchase in the near future. As I have a personal and professional interest in environmental and social sustainability, I would like to buy a vehicle that uses the least petroleum and emits the fewest greenhouse gases possible. Fortunately, there is an abundance of alternative fuel and fuel efficient vehicles options available. Using the Alternative Fuel and Advanced Technology Vehicle Data Center's (AFDC) Light Duty Vehicle Search, I can

Note: This page contains sample records for the topic "abundant power solutions" 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

Military power requirements and backup power considerations  

Science Conference Proceedings (OSTI)

All US Air Force (USAF) facilities have certain critical power requirements that must be met in order to carry out their mission successfully. Internal USAF studies have shown that the mission can degrade precipitously as the available power decreases below the mission critical level. Now, more than ever before, the military and private industry are finding that certain functions, such as automated data processing and automated process control, respond catastrophically to power reductions. Furthermore, increased reliance on electrical power means, in the case of the Air Force, that critical power requirements are anticipated to increase by half over the next 15 yr. For these reasons and others, the USAF is investigating several means of improving the availability of electric power under adverse conditions above that which can be provided by an off-base supplier. Among the approaches to this problem being pursued at this time are a program to improve all sorts of generator sets on a service-wide basis and the Multimegawatt Terrestrial Power (MTP) Program, which is pursuing the design and testing of a small dedicated nuclear power source to provide critical mission power. The purpose of this paper is to provide some insight into some of the issues associated with USAF power programs.

Botts, T.E.

1986-01-01T23:59:59.000Z

442

Robust solutions for combinatorial auctions  

Science Conference Proceedings (OSTI)

Bids submitted in auctions are usually treated as enforceable commitments in most bidding and auction theory literature. In reality bidders often withdraw winning bids before the transaction when it is in their best interests to do so. Given a bid withdrawal ... Keywords: bid withdrawal, combinatorial auctions, constraint programming, robustness, weighted Super Solutions

Alan Holland; Barry O'Sullivan

2005-06-01T23:59:59.000Z

443

Sunday Energy Ltd Sunday Nature Power | Open Energy Information  

Open Energy Info (EERE)

Sunday Energy Ltd Sunday Nature Power Sunday Energy Ltd Sunday Nature Power Jump to: navigation, search Name Sunday Energy Ltd (Sunday Nature Power) Place Ra'anana, Israel Zip 43501 Sector Solar Product The company supply solar PV power solutions to businesses and private houses and assemble the systems. References Sunday Energy Ltd (Sunday Nature Power)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Sunday Energy Ltd (Sunday Nature Power) is a company located in Ra'anana, Israel . References ↑ "Sunday Energy Ltd (Sunday Nature Power)" Retrieved from "http://en.openei.org/w/index.php?title=Sunday_Energy_Ltd_Sunday_Nature_Power&oldid=351769" Categories: Clean Energy Organizations

444

Analysis and design of power conditioning systems  

E-Print Network (OSTI)

A combination of high prices of fossil fuels and the increased awareness of their negative environmental impact has influenced the development of new cleaner energy sources. Among various viable technologies, fuel cells have emerged as one of the most promising sources for both portable and stationary applications. Fuel cell stacks produce DC voltage with a 2:1 variation in output voltage from no load to full load conditions. Hence, to increase the utilization efficiency and system stability, a power conditioner consisting of DC-DC and DC-AC converters is required for load interface. The design of power conditioners is driven by the application. This dissertation presents several different solutions for applications ranging from low-power portable sources for small electronics and laptop computers to megawatt-power applications for fuel cell power plants. The design and analysis for each power conditioner is presented in detail and the performance is verified using simulations and prototypes. Special consideration is given to the role of supercapacitors who act as the additional energy storage elements. It is shown that the supercapacitor connected at the terminals of a fuel cell can contribute to increased steady state stability when powering constant power loads, improved transient stability against load transients, and increased fuel efficiency (i.e. reduced hydrogen consumption).

Harfman Todorovic, Maja

2008-05-01T23:59:59.000Z

445

NETL: News Release - A Climate Change Solution Beneath our Feet  

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

13, 2002 13, 2002 A Climate Change Solution Beneath Our Feet? Energy Department Joins AEP, Battelle to Study Deep Geologic Reservoirs for Greenhouse Gas Storage NEW HAVEN, WV - Deep beneath much of the United States lie rock formations containing waters far too salty for human consumption. Long overlooked, these brine-filled reservoirs are now attracting new interest as possible "storage sites" for greenhouse gases emitted from power plants. Graphic - Map of U.S. Saline Aquifers Deep saline formations underlie much of the United States including many areas where power plants are concentrated. [Click on map for larger image.] The U.S. Department of Energy has given the go-ahead to a research team headed by American Electric Power (AEP) and Battelle to begin studying

446

Transportation and Stationary Power  

E-Print Network (OSTI)

heat, hydrogen and power (CHHP) "trigeneration" systems can hypothetically be configured to provide (1

447

Superconducting Power Equipment  

Science Conference Proceedings (OSTI)

The 2010 Electric Power Research Institute (EPRI) Technology Watch (Techwatch) report on superconducting power applications (EPRI report 1019995, Superconducting Power Equipment: Technology Watch 2010) introduced coverage about superconducting magnetic energy storage systems and superconducting transformers. The 2011 report contains additional information about superconducting power equipment, including progress to demonstrations in some projects. The 2011 report also includes a section on superconductin...

2011-12-22T23:59:59.000Z

448

Power Purchase Agreements  

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

Presentation covers the power purchase agreements taken from the FEMP Alternative Finance Options (AFO) webinar.

449

Manzanita Hybrid Power system Project Final Report  

DOE Green Energy (OSTI)

The Manzanita Indian Reservation is located in southeastern San Diego County, California. The Tribe has long recognized that the Reservation has an abundant wind resource that could be commercially utilized to its benefit, and in 1995 the Tribe established the Manzanita Renewable Energy Office. Through the U.S. Department of Energy's Tribal Energy Program the Band received funds to install a hybrid renewable power system to provide electricity to one of the tribal community buildings, the Manzanita Activities Center (MAC building). The project began September 30, 1999 and was completed March 31, 2005. The system was designed and the equipment supplied by Northern Power Systems, Inc, an engineering company with expertise in renewable hybrid system design and development. Personnel of the National Renewable Energy Laboratory provided technical assistance in system design, and continued to provide technical assistance in system monitoring. The grid-connected renewable hybrid wind/photovoltaic system provides a demonstration of a solar/wind energy hybrid power-generating project on Manzanita Tribal land. During the system design phase, the National Renewable Energy Lab estimated that the wind turbine is expected to produce 10,000-kilowatt hours per year and the solar array 2,000-kilowatt hours per year. The hybrid system was designed to provide approximately 80 percent of the electricity used annually in the MAC building. The project proposed to demonstrate that this kind of a system design would provide highly reliable renewable power for community uses.

Trisha Frank

2005-03-31T23:59:59.000Z

450

Photonic Power Systems Inc | Open Energy Information  

Open Energy Info (EERE)

Power Systems Inc Power Systems Inc Jump to: navigation, search Name Photonic Power Systems Inc Place Cupertino, California Zip 95014-2305 Product Provider of GaAs and InP-based solutions for delivering electrical power over fibre for numerous electronic applications. Coordinates 37.31884°, -122.029244° 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":37.31884,"lon":-122.029244,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

451

Predictive Power Inc | Open Energy Information  

Open Energy Info (EERE)

Predictive Power Inc Predictive Power Inc Jump to: navigation, search Name Predictive Power Inc Place Woburn, Massachusetts Zip 1801 Product A provider of predictive monitoring and maintenance solutions for electric power substations. Coordinates 42.479195°, -71.150604° 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":42.479195,"lon":-71.150604,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

452

Fulcrum Power Services LP | Open Energy Information  

Open Energy Info (EERE)

Power Services LP Power Services LP Jump to: navigation, search Name Fulcrum Power Services LP Place Houston, Texas Zip 77056 Product fulcrum is an energy management solutions provider for managing power generation assets and load serving obligations. Coordinates 29.76045°, -95.369784° 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":29.76045,"lon":-95.369784,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

453

Green Power Network: Green Power Leadership Awards  

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

Awards will highlight the accomplishments of green power suppliers (utilities, retail suppliers, REC marketers, and renewable energy project developers) that are innovators and...

454

Renewables for sustainable village power  

DOE Green Energy (OSTI)

It is estimated that two billion people live without electricity and its services. In addition, there is a sizeable number of rural villages that have limited electrical service, with either part-day operation by diesel gen-sets or partial electrification (local school or community center and several nearby houses). For many villages connected to the grid, power is often sporadically available and of poor quality. The U.S. National Renewable Energy Laboratory (NREL) in Golden, Colorado, has initiated a program to address these potential electricity opportunities in rural villages through the application of renewable energy (RE) technologies. The objective of this program is to develop and implement applications that demonstrate the technical performance, economic competitiveness, operational viability, and environmental benefits of renewable rural electric solutions, compared to the conventional options of line extension and isolated diesel mini-grids. These four attributes foster sustainability; therefore, the program is entitled Renewables for Sustainable Village Power (RSVP). The RSVP program is a multi-technology, multi-application program composed of six activities, including village applications development, computer model development, systems analysis, pilot project development, technical assistance, and Internet-based village power project data base. While the current program emphasizes wind, photovoltaics (PV), and their hybrids with diesel gen-sets, micro-hydro and micro-biomass technologies may be integrated in the future. NREL`s RSVP team is currently involved in rural electricity projects in thirteen countries, with U.S., foreign, and internationally based agencies and institutions. The integration of the technology developments, institutional experiences, and the financial solutions for the implementation of renewables in the main line rural electrification processes in both the developing world and remote regions of the developed world is the goal.

Flowers, L.

1997-03-01T23:59:59.000Z

455

How do Uncertainties in the Surface Chemical Abundances of the Sun Affect the Predicted Solar Neutrino Fluxes?  

E-Print Network (OSTI)

We show that uncertainties in the values of the surface heavy element abundances of the Sun are the largest source of the theoretical uncertainty in calculating the p-p, pep, 8B, 13N, 15O, and 17F solar neutrino fluxes. We evaluate for the first time the sensitivity (partial derivative) of each solar neutrino flux with respect to the surface abundance of each element. We then calculate the uncertainties in each neutrino flux using `conservative (preferred)' and `optimistic' estimates for the uncertainties in the element abundances. The total conservative (optimistic) composition uncertainty in the predicted 8B neutrino flux is 11.6% (5.0%) when sensitivities to individual element abundances are used. The traditional method that lumps all abundances into a single quantity (total heavy element to hydrogen ratio, Z/X) yields a larger uncertainty, 20%. The uncertainties in the carbon, oxygen, neon, silicon, sulphur, and iron abundances all make significant contributions to the uncertainties in calculating solar neutrino fluxes; the uncertainties of different elements are most important for different neutrino fluxes. The uncertainty in the iron abundance is the largest source of the estimated composition uncertainties of the important 7Be and 8B solar neutrinos. Carbon is the largest contributor to the uncertainty in the calculation of the p-p, 13N, and 15O neutrino fluxes. However, for all neutrino fluxes, several elements contribute comparable amounts to the total composition uncertainty.

John N. Bahcall; Aldo M. Serenelli

2004-12-03T23:59:59.000Z

456

REMOVAL OF CHLORIDE FROM AQUEOUS SOLUTIONS  

DOE Patents (OSTI)

The removal of chlorides from aqueons solutions is described. The process involves contacting the aqueous chloride containing solution with a benzene solution about 0.005 M in phenyl mercuric acetate whereby the chloride anions are taken up by the organic phase and separating the organic phase from the aqueous solutions.

Schulz, W.W.

1959-08-01T23:59:59.000Z

457

Water Power for a Clean Energy Future (Fact Sheet)  

DOE Green Energy (OSTI)

This fact sheet provides an overview of the U.S. Department of Energy's Wind and Water Power Program's water power research activities. Water power is the nation's largest source of clean, domestic, renewable energy. Harnessing energy from rivers, manmade waterways, and oceans to generate electricity for the nation's homes and businesses can help secure America's energy future. Water power technologies fall into two broad categories: conventional hydropower and marine and hydrokinetic technologies. Conventional hydropower facilities include run-of-the-river, storage, and pumped storage. Most conventional hydropower plants use a diversion structure, such as a dam, to capture water's potential energy via a turbine for electricity generation. Marine and hydrokinetic technologies obtain energy from waves, tides, ocean currents, free-flowing rivers, streams and ocean thermal gradients to generate electricity. The United States has abundant water power resources, enough to meet a large portion of the nation's electricity demand. Conventional hydropower generated 257 million megawatt-hours (MWh) of electricity in 2010 and provides 6-7% of all electricity in the United States. According to preliminary estimates from the Electric Power Resource Institute (EPRI), the United States has additional water power resource potential of more than 85,000 megawatts (MW). This resource potential includes making efficiency upgrades to existing hydroelectric facilities, developing new low-impact facilities, and using abundant marine and hydrokinetic energy resources. EPRI research suggests that ocean wave and in-stream tidal energy production potential is equal to about 10% of present U.S. electricity consumption (about 400 terrawatt-hours per year). The greatest of these resources is wave energy, with the most potential in Hawaii, Alaska, and the Pacific Northwest. The Department of Energy's (DOE's) Water Power Program works with industry, universities, other federal agencies, and DOE's national laboratories to promote the development and deployment of technologies capable of generating environmentally sustainable and cost-effective electricity from the nation's water resources.

Not Available

2012-03-01T23:59:59.000Z

458

Clean Energy Solutions Center | Open Energy Information  

Open Energy Info (EERE)

Clean Energy Solutions Center Clean Energy Solutions Center Jump to: navigation, search Logo: Clean Energy Solutions Center Name Clean Energy Solutions Center Agency/Company /Organization Clean Energy Ministerial Sector Energy Focus Area Non-renewable Energy, Energy Efficiency, Transportation Topics Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis Resource Type Case studies/examples, Guide/manual, Lessons learned/best practices, Publications, Training materials, Webinar Website http://cleanenergysolutions.or Program Start 2011 References Clean Energy Solutions Center Website[1] Clean Energy Solutions Center Screenshot The Clean Energy Solutions Center helps governments turn clean energy visions into reality. We share policy best practices, data, and analysis

459

SMUD's Residential Summer Solutions Study  

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

SMUD's Residential Summer Solutions Study SMUD's Residential Summer Solutions Study Speaker(s): Karen Herter Date: August 26, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Janie Page In 2009, the DRRC and SMUD teamed up to test the use of dynamic pricing and communicating thermostats in the small commercial sector. The final results showed summer energy savings of 20%, event impacts of 14%, and bill savings of 25%. In 2011, the same team will conduct a similar study involving residential customers with interval meters. The study is designed to inform the transition to the Sacramento smart grid through experimentation with real-time energy use data and communicating thermostats, both with and without dynamic pricing. Three randomly chosen groups of residential customers were offered one of three equipment configuration treatments: (a)

460

Energy Solutions Using Wireless Telemetry  

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

Solutions Using Wireless Telemetry Solutions Using Wireless Telemetry Speaker(s): Andy Green Date: June 12, 2001 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Satkartar K. Kinney This talk will address the following: * Introduction to wireless data networks * What are cellular control channels and why do I care? * Telemetry using wireless short packet data * Aeris technologies * Energy applications - Automatic meter reading - HVAV-R monitoring and control - Home gateways and remote thermostat control - Load management and curtailment - Distribution automation - Supply monitoring/management * The future For more information on this topic, you're invited to visit Aeris.Net at: http://www.aeris.net For more information about this seminar, please contact: Satkartar Kinney(510) 495-2365

Note: This page contains sample records for the topic "abundant power solutions" 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

Clean Energy Solutions Center (Presentation)  

Science Conference Proceedings (OSTI)

The Clean Energy Ministerial launched the Clean Energy Solutions Center in April, 2011 for major economy countries, led by Australia and U.S. with other CEM partners. Partnership with UN-Energy is extending scope to support all developing countries: 1. Enhance resources on policies relating to energy access, small to medium enterprises (SMEs), and financing programs; 2. Offer expert policy assistance to all countries; 3. Expand peer to peer learning, training, and deployment and policy data for developing countries.

Reategui, S.

2012-07-01T23:59:59.000Z

462

Electrochromic Salts, Solutions, and Devices  

DOE Patents (OSTI)

Electrochromic salts. Electrochromic salts of dicationic viologens such as methyl viologen and benzyl viologen associated with anions selected from bis(trifluoromethylsulfonyl)imide, bis(perfluoroethylsulfonyl)imide, and tris(trifluoromethylsulfonyl)methide are produced by metathesis with the corresponding viologen dihalide. They are highly soluble in molten quarternary ammonium salts and together with a suitable reductant provide electrolyte solutions that are used in electrochromic windows.

Burrell, Anthony K. (Los Alamos, NM); Warner, Benjamin P. (Los Alamos, NM); McClesky, T. Mark (Los Alamos, NM)

2008-11-11T23:59:59.000Z

463

Electrochromic salts, solutions, and devices  

DOE Patents (OSTI)

Electrochromic salts. Electrochromic salts of dicationic viologens such as methyl viologen and benzyl viologen associated with anions selected from bis(trifluoromethylsulfonyl)imide, bis(perfluoroethylsulfonyl)imide, and tris(trifluoromethylsulfonyl)methide are produced by metathesis with the corresponding viologen dihalide. They are highly soluble in molten quarternary ammonium salts and together with a suitable reductant provide electrolyte solutions that are used in electrochromic windows.

Burrell, Anthony K. (Los Alamos, NM); Warner, Benjamin P. (Los Alamos, NM); McClesky,7,064,212 T. Mark (Los Alamos, NM)

2006-06-20T23:59:59.000Z

464

Electrochromic Salts, Solutions, and Devices  

DOE Patents (OSTI)

Electrochromic salts. Electrochromic salts of dicationic viologens such as methyl viologen and benzyl viologen associated with anions selected from bis(trifluoromethylsulfonyl)imide, bis(perfluoroethylsulfonyl)imide, and tris(trifluoromethylsulfonyl)methide are produced by metathesis with the corresponding viologen dihalide. They are highly soluble in molten quarternary ammonium salts and together with a suitable reductant provide electrolyte solutions that are used in electrochromic windows.

Burrell, Anthony K. (Los Alamos, NM); Warner, Benjamin P. (Los Alamos, NM); McClesky, T. Mark (Los Alamos, NM)

2008-10-14T23:59:59.000Z

465

American Power: Proposed Penalty (2010-CE-0911) | Department of Energy  

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

American Power: Proposed Penalty (2010-CE-0911) American Power: Proposed Penalty (2010-CE-0911) American Power: Proposed Penalty (2010-CE-0911) September 8, 2010 DOE alleged in a Notice of Proposed Civil Penalty that American Power Solutions, Inc. failed to certify a general service fluorescent lamp as compliant with the applicable energy conservation standards. DOE regulations require a manufacturer (which includes importers) to submit reports certifying that its products have been tested and meet the applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. American Power: Proposed Penalty (2010-CE-0911) More Documents & Publications Engineered Solutions: Proposed Penalty (2010-CE-2112)

466

Aspects of theta pinch power plant development  

SciTech Connect

An engineering conceptual design study of a fusion power plant based on the theta-pinch concept has recently been completed. This study presented a compatible design for ten major systems. Although the design appears viable, some systems need considerable development to show that they are completely feasible and credible. Interactions between systems prevent implementation of some obvious solutions to the individual problems. Design alternatives, development, and demonstrations, as well as fundamental research required on these systems to make a feasible theta-pinch power plant are discussed. (auth)

Coultas, T.A.; Krakowski, R.A.

1973-01-01T23:59:59.000Z

467

Natural gas and electricity optimal power flow  

E-Print Network (OSTI)

Abstract In this paper, the combined natural gas and electric optimal power flow (GEOPF) is presented. It shows fundamental modeling of the natural gas network to be used for the GEOPF, and describes the equality constraints which describe the energy transformation between gas and electric networks at combined nodes (i.e., generators). We also present the formulation of the natural gas loadflow problem, which includes the amount of gas consumed in compressor stations. Case studies are presented to show the sensitivity of the real power generation to wellhead gas prices. Results from the simulation demonstrate that the GEOPF can provide social welfare maximizing solutions considering both gas and electric networks. I.

Seungwon An

2003-01-01T23:59:59.000Z

468

High power fast ramping power supplies  

Science Conference Proceedings (OSTI)

Hundred megawatt level fast ramping power converters to drive proton and heavy ion machines are under research and development at accelerator facilities in the world. This is a leading edge technology. There are several topologies to achieve this power level. Their advantages and related issues will be discussed.

Marneris,I.; Bajon, E.; Bonati, R.; Sandberg, J.; Roser, T.; Tsoupas, N.

2009-05-04T23:59:59.000Z

469

Active Power Control from Wind Power (Presentation)  

DOE Green Energy (OSTI)

In order to keep the electricity grid stable and the lights on, the power system relies on certain responses from its generating fleet. This presentation evaluates the potential for wind turbines and wind power plants to provide these services and assist the grid during critical times.

Ela, E.; Brooks, D.

2011-04-01T23:59:59.000Z

470

Using Cepheids to determine the galactic abundance gradient II. Towards the galactic center  

E-Print Network (OSTI)

Based on spectra obtained at the Anglo-Australian Observatory, we present a discussion of the metallicity of the galactic disc derived using Cepheids at galactocentric distances 4-6 kpc. Our new results together with previous gradient determination (Paper I) show that the overall abundance distribution within the galactocentric distances 4-11 kpc cannot by represented by a single gradient value. The distribution is more likely bimodal: it is flatter in the solar neighbourhood with a small gradient, and steepens towards the galactic center. The steepening begins at a distance of about 6.6 kpc.

S. M. Andrievsky; D. Bersier; V. V. Kovtyukh; R. E. Luck; W. J. Maciel; J. R. D. Lepine; Yu. V. Beletsky

2001-12-21T23:59:59.000Z

471

Primordial Helium Abundance from CMB: a constraint from recent observations and a forecast  

E-Print Network (OSTI)

We study a constraint on the primordial helium abundance $Y_p$ from current and future observations of CMB. Using the currently available data from WMAP, ACBAR, CBI and BOOMERANG, we obtained the constraint as $Y_p = 0.25 \\pm 0.10$ at 1$\\sigma$ level. We also provide a forecast for Planck using the Markov Chain Monte Carlo approach. In addition to forecasting the constraint on $Y_p$, we investigate how assumptions for $Y_p$ affect the constraints on the other cosmological parameters.

Ichikawa, Kazuhide; Takahashi, Tomo

2007-01-01T23:59:59.000Z

472

Primordial Helium Abundance from CMB: a constraint from recent observations and a forecast  

E-Print Network (OSTI)

We studied a constraint on the primordial helium abundance Y_p from current and future observations of CMB. Using the currently available data from WMAP, ACBAR, CBI and BOOMERANG, we obtained the constraint as Y_p = 0.25^{+0.10}_{-0.07} at 68% C.L. We also provide a forecast for the Planck experiment using the Markov chain Monte Carlo approach. In addition to forecasting the constraint on Y_p, we investigate how assumptions for Y_p affect constraints on the other cosmological parameters.

Kazuhide Ichikawa; Toyokazu Sekiguchi; Tomo Takahashi

2007-12-28T23:59:59.000Z

473

Solar abundances and helioseismology: fine structure spacings and separation ratios of low-degree p modes  

E-Print Network (OSTI)

We have used 4752 days of data collected by the Birmingham Solar-Oscillations Network (BiSON) to determine very precise oscillation frequencies of acoustic low-degree modes that probe the solar core. We compare the fine (small frequency) spacings and frequency separation ratios formed from these data with those of different solar models. We find that models constructed with low metallicity are incompatible with the observations. The results provide strong support for lowering the theoretical uncertainties on the neutrino fluxes. These uncertainties had recently been raised due to the controversy over the solar abundances.

Sarbani Basu; William J. Chaplin; Yvonne Elsworth; Roger New; Aldo M. Serenelli; Graham A. Verner

2006-10-02T23:59:59.000Z

474

Green Power Network: Green Power Policies  

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

Green Power Marketing Green Certificates Carbon Offsets State Policies govern_purch Community Choice Aggregation Disclosure Policies Green Power Policies Net Metering Policies Green Power Policies A number of state and local governments have policies in place that encourage the development of green power markets. Government green power purchasing mandates or goals have been established by the federal government, as well as state and local governments to procure renewable energy for the electricity used by government facilities or operations. Community choice aggregation allows communities to determine their electricity generation sources by aggregating the community load and purchasing electricity from an alternate electricity supplier while still receiving transmission and distribution service from their existing provider.

475

Clean Energy Solutions Centers Fact Sheet | Department of Energy  

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

Clean Energy Solutions Centers Fact Sheet Clean Energy Solutions Centers Fact Sheet A fact sheet describing the mission of the Clean Energy Solution Center. Clean Energy Solutions...

476

Application of Newton's optimal power flow in voltage/reactive power control  

Science Conference Proceedings (OSTI)

This paper considers an application of Newton's optimal power flow to the solution of the secondary voltage/reactive power control in transmission networks. An efficient computer program based on the latest achievements in the sparse matrix/vector techniques has been developed for this purpose. It is characterized by good robustness, accuracy and speed. A combined objective function appropriate for various system load levels with suitable constraints, for treatment of the power system security and economy is also proposed. For the real-time voltage/reactive power control, a suboptimal power flow procedure has been derived by using the reduced set of control variables. This procedure is based on the sensitivity theory applied to the determination of zones for the secondary voltage/reactive power control and corresponding reduced set of regulating sources, whose reactive outputs represent control variables in the optimal power flow program. As a result, the optimal power flow program output becomes a schedule to be used by operators in the process of the real-time voltage/reactive power control in both normal and emergency operating states.

Bjelogrlic, M.; Babic, B.S. (Electric Power Board of Serbia, Belgrade (YU)); Calovic, M.S. (Dept. of Electrical Engineering, University of Belgrade, Belgrade (YU)); Ristanovic, P. (Institute Nikola Tesla, Belgrade (YU))

1990-11-01T23:59:59.000Z

477

Exergetic Performance Investigation of Medium-Low Enthalpy Geothermal Power Generation  

Science Conference Proceedings (OSTI)

The renewable energy sources are becoming attractive solutions for clean and sustainable energy needs. Geothermal energy is increasingly contributing to the power supply worldwide. In evaluating the efficiency of energy conservation systems, the most ... Keywords: geothermal energy, power generation, binary cycle, exergetic efficiency, exergy analysis, geothermal power plant

Junkui Cui; Jun Zhao; Chuanshan Dai; Bin Yang

2009-10-01T23:59:59.000Z

478

A Scalable Modeling Technique to Estimate Dynamic Thermal Design Power of Datapath Intensive Designs  

Science Conference Proceedings (OSTI)

In this paper, a power modeling approach for the estimation of dynamic power under Thermal Design Power (TDP1) for datapath intensive designs is proposed. Early estimation of TDP is crucial for the design of thermal and cooling solutions of a chip and ...

Prashant Agrawal; Srinivasa R. STG; Ajit N. Oke; Saurabh Vijay

2007-03-01T23:59:59.000Z

479

NON-RELATIVISTIC RADIATION-MEDIATED SHOCK BREAKOUTS. I. EXACT BOLOMETRIC PLANAR BREAKOUT SOLUTIONS  

Science Conference Proceedings (OSTI)

The problem of a non-steady planar radiation-mediated shock (RMS) breaking out from a surface with a power-law density profile, {rho}{proportional_to}x{sup n} , is numerically solved in the approximation of diffusion with constant opacity. For an appropriate choice of time, length, and energy scales, determined by the breakout opacity, velocity, and density, the solution is universal, i.e., depends only on the density power-law index n. The resulting luminosity depends weakly on the value of n. An approximate analytic solution, based on the self-similar hydrodynamic solutions and on the steady RMS solutions, is constructed and shown to agree with the numerical solutions as long as the shock is far from the surface, {tau} >> c/v{sub sh}. Approximate analytic expressions, calibrated based on the exact solutions, are provided, which describe the escaping luminosity as a function of time. These results can be used to calculate the bolometric properties of the bursts of radiation produced during supernova shock breakouts. For completeness, we also use the exact breakout solutions to provide an analytic approximation for the maximum surface temperature for fast (v{sub sh} {approx}> 0.1) non-thermal breakouts and show that it is a few times smaller than inferred based on steady state RMS solutions.

Sapir, Nir; Waxman, Eli [Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100 (Israel); Katz, Boaz [Institute for Advanced Study, Princeton