Sample records for megawatt central receiver

  1. Central solar energy receiver

    DOE Patents [OSTI]

    Drost, M. Kevin (Richland, WA)

    1983-01-01T23:59:59.000Z

    An improved tower-mounted central solar energy receiver for heating air drawn through the receiver by an induced draft fan. A number of vertically oriented, energy absorbing, fin-shaped slats are radially arranged in a number of concentric cylindrical arrays on top of the tower coaxially surrounding a pipe having air holes through which the fan draws air which is heated by the slats which receive the solar radiation from a heliostat field. A number of vertically oriented and wedge-shaped columns are radially arranged in a number of concentric cylindrical clusters surrounding the slat arrays. The columns have two mirror-reflecting sides to reflect radiation into the slat arrays and one energy absorbing side to reduce reradiation and reflection from the slat arrays.

  2. Central solar-energy receiver

    DOE Patents [OSTI]

    Not Available

    1981-10-27T23:59:59.000Z

    An improved tower-mounted central solar energy receiver for heating air drawn through the receiver by an induced draft fan is described. A number of vertically oriented, energy absorbing, fin-shaped slats are radially arranged in a number of concentric cylindrical arrays on top of the tower coaxially surrounding a pipe having air holes through which the fan draws air which is heated by the slats which receive the solar radiation from a heliostat field. A number of vertically oriented and wedge-shaped columns are radially arranged in a number of concentric cylindrical clusters surrounding the slat arrays. The columns have two mirror-reflecting sides to reflect radiation into the slat arrays and one energy absorbing side to reduce reradiation and reflection from the slat arrays.

  3. Solar central receiver systems comparative economics

    SciTech Connect (OSTI)

    Eicker, P J

    1980-04-01T23:59:59.000Z

    Several major conceptual design studies of solar central receiver systems and components have been completed in the last year. The results of these studies are used to compare the projected cost of electric power generation using central receiver systems with that of more conventional power generation. The cost estimate for a molten salt central receiver system is given. Levelized busbar energy cost is shown as a function of annual capacity factor indicating the fraction of the cost due to each of the subsystems. The estimated levelized busbar energy cost for a central receiver (70 to 90 mills per kilowatt hour) is compared with the levelized busbar energy cost for a new coal fired Rankine cycle plant. Sensitivities to the initial cost of coal and the delta fuel escalation are shown. (WHK)

  4. A handbook for solar central receiver design

    SciTech Connect (OSTI)

    Falcone, P.K.

    1986-12-01T23:59:59.000Z

    This Handbook describes central receiver technology for solar thermal power plants. It contains a description and assessment of the major components in a central receiver system configured for utility scale production of electricity using Rankine-cycle steam turbines. It also describes procedures to size and optimize a plant and discussed examples from recent system analyses. Information concerning site selection criteria, cost estimation, construction, and operation and maintenance is also included, which should enable readers to perform design analyses for specific applications.

  5. Solar central receiver heliostat reflector assembly

    DOE Patents [OSTI]

    Horton, Richard H. (Schenectady, NY); Zdeb, John J. (Clifton Park, NY)

    1980-01-01T23:59:59.000Z

    A heliostat reflector assembly for a solar central receiver system comprises a light-weight, readily assemblable frame which supports a sheet of stretchable reflective material and includes mechanism for selectively applying tension to and positioning the sheet to stretch it to optical flatness. The frame is mounted on and supported by a pipe pedestal assembly that, in turn, is installed in the ground. The frame is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e. central receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The frame may include a built-in system for testing for optical flatness of the reflector. The preferable geometric configuration of the reflector is octagonal; however, it may be other shapes, such as hexagonal, pentagonal or square. Several different embodiments of means for tensioning and positioning the reflector to achieve optical flatness are disclosed. The reflector assembly is based on the stretch frame concept which provides an extremely light-weight, simple, low-cost reflector assembly that may be driven for positioning and tracking by a light-weight, inexpensive drive system.

  6. Sandia Energy - Central Receiver Test Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Scienceand RequirementsCoatings Initiated at PNNL's Sequim BayCapture HomeCenter forCentral

  7. Hybrid solar central receiver for combined cycle power plant

    DOE Patents [OSTI]

    Bharathan, Desikan (Lakewood, CO); Bohn, Mark S. (Golden, CO); Williams, Thomas A. (Arvada, CO)

    1995-01-01T23:59:59.000Z

    A hybrid combined cycle power plant including a solar central receiver for receiving solar radiation and converting it to thermal energy. The power plant includes a molten salt heat transfer medium for transferring the thermal energy to an air heater. The air heater uses the thermal energy to preheat the air from the compressor of the gas cycle. The exhaust gases from the gas cycle are directed to a steam turbine for additional energy production.

  8. Hybrid solar central receiver for combined cycle power plant

    DOE Patents [OSTI]

    Bharathan, D.; Bohn, M.S.; Williams, T.A.

    1995-05-23T23:59:59.000Z

    A hybrid combined cycle power plant is described including a solar central receiver for receiving solar radiation and converting it to thermal energy. The power plant includes a molten salt heat transfer medium for transferring the thermal energy to an air heater. The air heater uses the thermal energy to preheat the air from the compressor of the gas cycle. The exhaust gases from the gas cycle are directed to a steam turbine for additional energy production. 1 figure.

  9. Tri-Lateral Noor al Salaam High Concentration Solar Central Receiver Program

    SciTech Connect (OSTI)

    Blackmon, James B

    2008-03-31T23:59:59.000Z

    This report documents the efforts conducted primarily under the Noor al Salaam (“Light of Peace”) program under DOE GRANT NUMBER DE-FC36-02GO12030, together with relevant technical results from a closely related technology development effort, the U.S./Israel Science and Technology Foundation (USISTF) High Concentration Solar Central Receiver program. These efforts involved preliminary design, development, and test of selected prototype power production subsystems and documentation of an initial version of the system definition for a high concentration solar hybrid/gas electrical power plant to be built in Zaafarana, Egypt as a first step in planned commercialization. A major part of the planned work was halted in 2007 with an amendment in October 2007 requiring that we complete the technical effort by December 31, 2007 and provide a final report to DOE within the following 90 days. This document summarizes the work conducted. The USISTF program was a 50/50 cost-shared program supported by the Department of Commerce through the U.S./Israel Science and Technology Commission (USISTC). The USISTC was cooperatively developed by President Clinton and the late Prime Minister Rabin of Israel "to encourage technological collaboration" and "support peace in the Middle East through economic development". The program was conducted as a follow-on effort to Israel's Magnet/CONSOLAR Program, which was an advanced development effort to design, fabricate, and test a solar central receiver and secondary optics for a "beam down" central receiver concept. The status of these hardware development programs is reviewed, since they form the basis for the Noor al Salaam program. Descriptions are provided of the integrated system and the major subsystems, including the heliostat, the high temperature air receiver, the power conversion unit, tower and tower reflector, compound parabolic concentrator, and the master control system. One objective of the USISTF program was to conduct marketing research, identify opportunities for use of this technology, and to the extent possible, secure an agreement leading to a pre-commercialization demonstration or prototype plant. This was accomplished with the agreement to conduct the Noor al Salaam program as a tri-lateral project between Egypt, Israel, and the U.S. The tri-lateral project was led by the University of Alabama in Huntsville (UAH); this included the Egyptian New and Renewable Energy Authority and the Israeli USISTC participants. This project, known was Noor al Salaam, was funded by the U.S. Agency for International Development (USAID) through the Department of Energy (DOE). The Egyptian activity was under the auspices of the Egyptian Ministry of Energy and Electricity, New and Renewable Energy Authority (NREA) as part of Egypt's plans for renewable energy development. The objective of the Noor al Salaam project was to develop the conditions necessary to obtain funding and construct and operate an approximately 10 to 20 Megawatt hybrid solar/natural gas demonstration power plant in Zaafarana, Egypt that could serve both as a test bed for advanced solar technology evaluations, and as a forerunner to commercial plant designs. This plant, termed Noor Al Salaam, or “Light of Peace”, reached the initial phase of system definition before being curtailed, in part by changes in USAID objectives, coupled with various delays that were beyond the scope of the program to resolve. The background of the USISTF technology development and pre-commercialization effort is provided in this report, together with documentation of the technology developments conducted under the Noor al Salaam program. It should be noted that only a relatively small part of the Noor al Salaam funding was expended over the approximately five years for which UAH was prime contractor before the program was ordered closed (Reference 1) so that the remaining funds could be returned to USAID.

  10. Baseload Nitrate Salt Central Receiver Power Plant Design Final Report

    SciTech Connect (OSTI)

    Tilley, Drake; Kelly, Bruce; Burkholder, Frank

    2014-12-12T23:59:59.000Z

    The objectives of the work were to demonstrate that a 100 MWe central receiver plant, using nitrate salt as the receiver coolant, thermal storage medium, and heat transport fluid in the steam generator, can 1) operate, at full load, for 6,400 hours each year using only solar energy, and 2) satisfy the DOE levelized energy cost goal of $0.09/kWhe (real 2009 $). To achieve these objectives the work incorporated a large range of tasks relating to many different aspects of a molten salt tower plant. The first Phase of the project focused on developing a baseline design for a Molten Salt Tower and validating areas for improvement. Tasks included a market study, receiver design, heat exchanger design, preliminary heliostat design, solar field optimization, baseline system design including PFDs and P&IDs and detailed cost estimate. The baseline plant met the initial goal of less than $0.14/kWhe, and reinforced the need to reduce costs in several key areas to reach the overall $0.09/kWhe goal. The major improvements identified from Phase I were: 1) higher temperature salt to improve cycle efficiency and reduce storage requirements, 2) an improved receiver coating to increase the efficiency of the receiver, 3) a large receiver design to maximize storage and meet the baseload hours objective, and 4) lower cost heliostat field. The second Phase of the project looked at advancing the baseline tower with the identified improvements and included key prototypes. To validate increasing the standard solar salt temperature to 600 °C a dynamic test was conducted at Sandia. The results ultimately proved the hypothesis incorrect and showed high oxide production and corrosion rates. The results lead to further testing of systems to mitigate the oxide production to be able to increase the salt temperature for a commercial plant. Foster Wheeler worked on the receiver design in both Phase I and Phase II looking at both design and lowering costs utilizing commercial fossil boiler manufacturing. The cost and design goals for the project were met with this task, but the most interesting results had to do with defining the failure modes and looking at a “shakedown analysis” of the combined creep-fatigue failure. A separate task also looked at improving the absorber coatings on the receiver tubes that would improve the efficiency of the receiver. Significant progress was made on developing a novel paint with a high absorptivity that was on par with the current Pyromark, but shows additional potential to be optimized further. Although the coating did not meet the emissivity goals, preliminary testing the new paint shows potential to be much more durable, and potential to improve the receiver efficiency through a higher average absorptivity over the lifetime. Additional coatings were also designed and modeled results meet the project goals, but were not tested. Testing for low cycle fatigue of the full length receiver tubes was designed and constructed, but is still currently undergoing testing. A novel small heliostat was developed through an extensive brainstorming and down select. The concept was then detailed further with inputs from component testing and eventually a full prototype was built and tested. This task met or exceeded the accuracy and structure goals and also beat the cost goal. This provides a significant solar field costs savings for Abengoa that will be developed further to be used in future commercial plants. Ultimately the $0.09/kWhe (real 2009 $) and 6,400 hours goals of the project were met.

  11. PLANS FOR FUTURE MEGAWATT FACILITIES.

    SciTech Connect (OSTI)

    ROSER,T.

    2004-10-13T23:59:59.000Z

    Proton accelerators producing beam powers of up to 1 MW are presently either operating or under construction and designs for Multi-Megawatt facilities are being developed. High beam power has applications in the production of high intensity secondary beams of neutrons, muons, kaons and neutrinos as well as in nuclear waste transmutation and accelerator-driven sub-critical reactors. Each of these applications has additional requirements on beam energy and duty cycle. This paper will review how present designs for future Multi-Megawatt facilities meet these requirements and will also review the experience with present high power facilities.

  12. Advanced Thermal Storage for Central Receivers with Supercritical Coolants

    SciTech Connect (OSTI)

    Kelly, Bruce D.

    2010-06-15T23:59:59.000Z

    The principal objective of the study is to determine if supercritical heat transport fluids in a central receiver power plant, in combination with ceramic thermocline storage systems, offer a reduction in levelized energy cost over a baseline nitrate salt concept. The baseline concept uses a nitrate salt receiver, two-tank (hot and cold) nitrate salt thermal storage, and a subcritical Rankine cycle. A total of 6 plant designs were analyzed, as follows: Plant Designation Receiver Fluid Thermal Storage Rankine Cycle Subcritical nitrate salt Nitrate salt Two tank nitrate salt Subcritical Supercritical nitrate salt Nitrate salt Two tank nitrate salt Supercritical Low temperature H2O Supercritical H2O Two tank nitrate salt Supercritical High temperature H2O Supercritical H2O Packed bed thermocline Supercritical Low temperature CO2 Supercritical CO2 Two tank nitrate salt Supercritical High temperature CO2 Supercritical CO2 Packed bed thermocline Supercritical Several conclusions have been drawn from the results of the study, as follows: 1) The use of supercritical H2O as the heat transport fluid in a packed bed thermocline is likely not a practical approach. The specific heat of the fluid is a strong function of the temperatures at values near 400 °C, and the temperature profile in the bed during a charging cycle is markedly different than the profile during a discharging cycle. 2) The use of supercritical CO2 as the heat transport fluid in a packed bed thermocline is judged to be technically feasible. Nonetheless, the high operating pressures for the supercritical fluid require the use of pressure vessels to contain the storage inventory. The unit cost of the two-tank nitrate salt system is approximately $24/kWht, while the unit cost of the high pressure thermocline system is nominally 10 times as high. 3) For the supercritical fluids, the outer crown temperatures of the receiver tubes are in the range of 700 to 800 °C. At temperatures of 700 °C and above, intermetallic compounds can precipitate between, and within, the grains of nickel alloys. The precipitation leads to an increase in tensile strength, and a decrease in ductility. Whether the proposed tube materials can provide the required low cycle fatigue life for the supercritical H2O and CO2 receivers is an open question. 4) A ranking of the plants, in descending order of technical and economic feasibility, is as follows: i) Supercritical nitrate salt and baseline nitrate salt: equal ratings ii) Low temperature supercritical H2O iii) Low temperature supercritical CO2 iv) High temperature supercritical CO2 v) High temperature supercritical H2O 5) The two-tank nitrate salt thermal storage systems are strongly preferred over the thermocline systems using supercritical heat transport fluids.

  13. Optimization of central receiver concentrated solar thermal : site selection, heliostat layout & canting

    E-Print Network [OSTI]

    Noone, Corey J. (Corey James)

    2011-01-01T23:59:59.000Z

    In this thesis, two new models are introduced for the purposes of (i) locating sites in hillside terrain suitable for central receiver solar thermal plants and (ii) optimization of heliostat field layouts for any terrain. ...

  14. Impact of Aerosols on Atmospheric Attenuation Loss in Central Receiver Systems: Preprint

    SciTech Connect (OSTI)

    Sengupta, M.; Wagner, M. J.

    2011-08-01T23:59:59.000Z

    Atmospheric attenuation loss between the heliostat field and receiver has been recognized as a significant source of loss in Central Receiver Systems. In clear sky situations, extinction of Direct Normal Irradiance (DNI) is primarily by aerosols in the atmosphere. When aerosol loading is high close to the surface the attenuation loss between heliostat and receivers is significantly influenced by the amount of aerosols present on a particular day. This study relates measured DNI to aerosol optical depths close to the surface of the earth. The model developed in the paper uses only measured DNI to estimate the attenuation between heliostat and receiver in a central receiver system. The requirement that only a DNI measurement is available potentially makes the model a candidate for widespread use.

  15. RECEIVED

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah47,193.70COMMUNITYResponses:December 11, 2014 PageRDC ReceivesREAP40

  16. Financing alternatives and incentives for solar-thermal central-receiver systems

    SciTech Connect (OSTI)

    Bos, P.B.

    1982-07-01T23:59:59.000Z

    As a result of various recently enacted incentive and regulatory legislation combined with the new administration policy and budgetary guidelines, the commercialization of solar thermal central receiver systems will involve financing alternatives other than conventional utility financing. This study was conducted to identify these potential financing alternatives and the associated requirements and impacts on the Department of Energy program. Based upon this analysis, it is concluded that the current alternative financing window is extremely short (through 1985), and that an extension or at the least a gradual phasing out, of the solar tax credits is necessary for the successful transfer of the central receiver technology to the private sector. Furthermore, throughout this time period, continued government support of the R and D activities is necessary to provide the necessary confidence in this technology for the private (financial) sector to underwrite this technology transfer. Consequently, even though the central receiver technology shows high promise for replacing a significant fraction of the oil/gas-fired utility industry peaking and intermediate generation, the current readiness status of this technology still requires further direct and indirect government support for a successful technology transfer. The direct government research and development support will provide the basis for a technological readiness and confidence, whereas the indirect tax incentive support serves to underwrite the extraordinary risks associated with the technology transfer. These support requirements need only be limited to and decreasing during this technology transfer phase, since as the systems approach successful full-scale commercialization, the extraordinary risks will be gradually eliminated. At the time of commercialization the system's value should be on a par with the installed system's cost.

  17. Preliminary design of the Carrisa Plains solar central receiver power plant. Volume I. Executive summary

    SciTech Connect (OSTI)

    Not Available

    1983-12-31T23:59:59.000Z

    The design of the 30 MWe central receiver solar power plant to be located at Carrisa Plains, San Luis Obispo County, California, is summarized. The plant uses a vertical flat-panel (billboard) solar receiver located at the top of a tower to collect solar energy redirected by approximately 1900 heliostats located to the north of the tower. The solar energy is used to heat liquid sodium pumped from ground level from 610 to 1050/sup 0/F. The power conversion system is a non-reheat system, cost-effective at this size level, and designed for high-efficiency performance in an application requiring daily startup. Successful completion of this project will lead to power generation starting in 1986. This report also discusses plant performance, operations and maintenance, development, and facility cost estimate and economic analysis.

  18. Final Environmental Impact Report: North Brawley Ten Megawatt...

    Open Energy Info (EERE)

    Final Environmental Impact Report: North Brawley Ten Megawatt Geothermal Demonstration Facility Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Final...

  19. Spallation Neutron Source reaches megawatt power

    ScienceCinema (OSTI)

    Dr. William F. Brinkman

    2010-01-08T23:59:59.000Z

    The Department of Energy's Spallation Neutron Source (SNS), already the world's most powerful facility for pulsed neutron scattering science, is now the first pulsed spallation neutron source to break the one-megawatt barrier. "Advances in the materials sciences are fundamental to the development of clean and sustainable energy technologies. In reaching this milestone of operating power, the Spallation Neutron Source is providing scientists with an unmatched resource for unlocking the secrets of materials at the molecular level," said Dr. William F. Brinkman, Director of DOE's Office of Science.

  20. Improved high temperature solar absorbers for use in Concentrating Solar Power central receiver applications.

    SciTech Connect (OSTI)

    Stechel, Ellen Beth; Ambrosini, Andrea; Hall, Aaron Christopher; Lambert, Timothy L.; Staiger, Chad Lynn; Bencomo, Marlene

    2010-09-01T23:59:59.000Z

    Concentrating solar power (CSP) systems use solar absorbers to convert the heat from sunlight to electric power. Increased operating temperatures are necessary to lower the cost of solar-generated electricity by improving efficiencies and reducing thermal energy storage costs. Durable new materials are needed to cope with operating temperatures >600 C. The current coating technology (Pyromark High Temperature paint) has a solar absorptance in excess of 0.95 but a thermal emittance greater than 0.8, which results in large thermal losses at high temperatures. In addition, because solar receivers operate in air, these coatings have long term stability issues that add to the operating costs of CSP facilities. Ideal absorbers must have high solar absorptance (>0.95) and low thermal emittance (<0.05) in the IR region, be stable in air, and be low-cost and readily manufacturable. We propose to utilize solution-based synthesis techniques to prepare intrinsic absorbers for use in central receiver applications.

  1. Solar Central Receiver Hybrid Power Systems sodium-cooled receiver concept. Final report. Volume II, Book 2. Conceptual design, Sections 5 and 6

    SciTech Connect (OSTI)

    None

    1980-01-01T23:59:59.000Z

    The overall, long-term objective of the Solar Central Receiver Hybrid Power System program is to identify, characterize, and ultimately demonstrate the viability and cost effectiveness of solar/fossil, steam Rankine cycle, hybrid power systems that: (1) consist of a combined solar central receiver energy source and a nonsolar energy source at a single, common site, (2) may operate in the base, intermediate, and peaking capacity modes, (3) produce the rated output independent of variations in solar insolation, (4) provide a significant savings (50% or more) in fuel consumption, and (5) produce power at the minimum possible cost in mills/kWh. It is essential that these hybrid concepts be technically feasible and economically competitive with other systems in the near to mid-term time period (1985-1990) on a commercial scale. The program objective for Phase I is to identify and conceptually characterize solar/fossil steam Rankine cycle, commercial-scale, power plant systems that are economically viable and technically feasible. This volume contains the detailed conceptual design and cost/performance estimates and an assessment of the commercial scale solar central receiver hybrid power system. (WHK)

  2. Extreme Cost Reductions with Multi-Megawatt Centralized Inverter Systems |

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

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  3. Cost Reductions with Multi-Megawatt Centralized Inverter Systems

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

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  4. Concentrating Solar Power �¢���� Central Receiver Panel Component Fabrication and Testing FINAL REPORT

    SciTech Connect (OSTI)

    McDowell, Michael W [Pratt & Whitney Rocketdyne; Miner, Kris [Pratt & Whitney Rocketdyne

    2013-03-30T23:59:59.000Z

    The objective of this project is to complete a design of an advanced concentrated solar panel and demonstrate the manufacturability of key components. Then confirm the operation of the key components under prototypic solar flux conditions. This work is an important step in reducing the levelized cost of energy (LCOE) from a central receiver solar power plant. The key technical risk to building larger power towers is building the larger receiver systems. Therefore, this proposed technology project includes the design of an advanced molten salt prototypic sub-scale receiver panel that can be utilized into a large receiver system. Then complete the fabrication and testing of key components of the receive design that will be used to validate the design. This project shall have a significant impact on solar thermal power plant design. Receiver panels of suitable size for utility scale plants are a key element to a solar power tower plant. Many subtle and complex manufacturing processes are involved in producing a reliable, robust receiver panel. Given the substantial size difference between receiver panels manufactured in the past and those needed for large plant designs, the manufacture and demonstration on prototype receiver panel components with representative features of a full-sized panel will be important to improving the build process for commercial success. Given the thermal flux limitations of the test facility, the panel components cannot be rendered full size. Significance changes occurred in the projects technical strategies from project initiation to the accomplishments described herein. The initial strategy was to define cost improvements for the receiver, design and build a scale prototype receiver and test, on sun, with a molten salt heat transport system. DOE had committed to constructing a molten salt heat transport loop to support receiver testing at the top of the NSTTF tower. Because of funding constraints this did not happen. A subsequent plan to test scale prototype receiver, off sun but at temperature, at a molten salt loop at ground level adjacent to the tower also had to be abandoned. Thus, no test facility existed for a molten salt receiver test. As a result, PWR completed the prototype receiver design and then fabricated key components for testing instead of fabricating the complete prototype receiver. A number of innovative design ideas have been developed. Key features of the receiver panel have been identified. This evaluation includes input from Solar 2, personal experience of people working on these programs and meetings with Sandia. Key components of the receiver design and key processes used to fabricate a receiver have been selected for further evaluation. The Test Plan, Concentrated Solar Power Receiver In Cooperation with the Department of Energy and Sandia National Laboratory was written to define the scope of the testing to be completed as well as to provide details related to the hardware, instrumentation, and data acquisition. The document contains a list of test objectives, a test matrix, and an associated test box showing the operating points to be tested. Test Objectives: 1. Demonstrate low-cost manufacturability 2. Demonstrate robustness of two different tube base materials 3. Collect temperature data during on sun operation 4. Demonstrate long term repeated daily operation of heat shields 5. Complete pinhole tube weld repairs 6. Anchor thermal models This report discusses the tests performed, the results, and implications for design improvements and LCOE reduction.

  5. Multi Megawatt Power System Analysis Report

    SciTech Connect (OSTI)

    Longhurst, Glen Reed; Harvego, Edwin Allan; Schnitzler, Bruce Gordon; Seifert, Gary Dean; Sharpe, John Phillip; Verrill, Donald Alan; Watts, Kenneth Donald; Parks, Benjamin Travis

    2001-11-01T23:59:59.000Z

    Missions to the outer planets or to near-by planets requiring short times and/or increased payload carrying capability will benefit from nuclear power. A concept study was undertaken to evaluate options for a multi-megawatt power source for nuclear electric propulsion. The nominal electric power requirement was set at 15 MWe with an assumed mission profile of 120 days at full power, 60 days in hot standby, and another 120 days of full power, repeated several times for 7 years of service. Of the numerous options considered, two that appeared to have the greatest promise were a gas-cooled reactor based on the NERVA Derivative design, operating a closed cycle Brayton power conversion system; and a molten lithium-cooled reactor based on SP-100 technology, driving a boiling potassium Rankine power conversion system. This study examined the relative merits of these two systems, seeking to optimize the specific mass. Conclusions were that either concept appeared capable of approaching the specific mass goal of 3-5 kg/kWe estimated to be needed for this class of mission, though neither could be realized without substantial development in reactor fuels technology, thermal radiator mass efficiency, and power conversion and distribution electronics and systems capable of operating at high temperatures. Though the gas-Brayton systems showed an apparent advantage in specific mass, differences in the degree of conservatism inherent in the models used suggests expectations for the two approaches may be similar. Brayton systems eliminate the need to deal with two-phase flows in the microgravity environment of space.

  6. Evaluation of annual efficiencies of high temperature central receiver concentrated solar power plants with thermal energy storage.

    SciTech Connect (OSTI)

    Ehrhart, Brian David; Gill, David Dennis

    2013-07-01T23:59:59.000Z

    The current study has examined four cases of a central receiver concentrated solar power plant with thermal energy storage using the DELSOL and SOLERGY computer codes. The current state-of-the-art base case was compared with a theoretical high temperature case which was based on the scaling of some input parameters and the estimation of other parameters based on performance targets from the Department of Energy SunShot Initiative. This comparison was done for both current and high temperature cases in two configurations: a surround field with an external cylindrical receiver and a north field with a single cavity receiver. There is a fairly dramatic difference between the design point and annual average performance, especially in the solar field and receiver subsystems, and also in energy losses due to the thermal energy storage being full to capacity. Additionally, there are relatively small differences (<2%) in annual average efficiencies between the Base and High Temperature cases, despite an increase in thermal to electric conversion efficiency of over 8%. This is due the increased thermal losses at higher temperature and operational losses due to subsystem start-up and shut-down. Thermal energy storage can mitigate some of these losses by utilizing larger thermal energy storage to ensure that the electric power production system does not need to stop and re-start as often, but solar energy is inherently transient. Economic and cost considerations were not considered here, but will have a significant impact on solar thermal electric power production strategy and sizing.

  7. The 5-megawatt power plant with 126 metre rotor diameter

    E-Print Network [OSTI]

    Firestone, Jeremy

    The 5-megawatt power plant with 126 metre rotor diameter #12;Design data Rated power 5,000kW Cut and most powerful wind turbines in the world. The 5M sets new standards for the economic viability similar to conventional power plants. This in turn puts high demands on the control and regulation system

  8. Receiver subsystem analysis report (RADL Item 4-1). 10-MWe Solar Thermal Central-Receiver Pilot Plant: solar-facilities design integration

    SciTech Connect (OSTI)

    Not Available

    1982-04-01T23:59:59.000Z

    The results are presented of those thermal hydraulic, structural, and stress analyses required to demonstrate that the Receiver design for the Barstow Solar Pilot Plant will satisfy the general design and performance requirements during the plant's design life. Recommendations resulting from those analyses and supporting test programs are presented regarding operation of the receiver. The analyses are limited to receiver subsystem major structural parts (primary tower, receiver unit core support structure), pressure parts (absorber panels, feedwater, condensate and steam piping/components, flash tank, and steam mainfold) and shielding. (LEW)

  9. Preliminary design of the Carrisa Plains solar central receiver power plant. Volume III, Book 1. Design description

    SciTech Connect (OSTI)

    Not Available

    1983-12-31T23:59:59.000Z

    The design of the 30 MWe central receiver solar power plant to be located at Carrisa Plains, San Luis Obispo County, California, is summarized. The plant uses a vertical flat-panel (billboard solar receiver located at the top of a tower to collect solar energy redirected by approximately 1900 heliostats located to the north of the tower. The solar energy is used to heat liquid sodium pumped from ground level from 610 to 1050/sup 0/F. The power conversion system is a non-reheat system, cost-effective at this size level, and designed for high-efficiency performance in an application requiring daily startup. Successful completion of this project will lead to power generation starting in 1986. This report discusses in detail the design of the collector system, heat transport system, thermal storage subsystem, heat transport loop, steam generation subsystem, electrical, instrumentation, and control systems, power conversion system, master control system, and balance of plant. The performance, facility cost estimate and economic analysis, and development plan are also discussed.

  10. User's manual for DELSOL2: a computer code for calculating the optical performance and optimal system design for solar-thermal central-receiver plants

    SciTech Connect (OSTI)

    Dellin, T.A.; Fish, M.J.; Yang, C.L.

    1981-08-01T23:59:59.000Z

    DELSOL2 is a revised and substantially extended version of the DELSOL computer program for calculating collector field performance and layout, and optimal system design for solar thermal central receiver plants. The code consists of a detailed model of the optical performance, a simpler model of the non-optical performance, an algorithm for field layout, and a searching algorithm to find the best system design. The latter two features are coupled to a cost model of central receiver components and an economic model for calculating energy costs. The code can handle flat, focused and/or canted heliostats, and external cylindrical, multi-aperture cavity, and flat plate receivers. The program optimizes the tower height, receiver size, field layout, heliostat spacings, and tower position at user specified power levels subject to flux limits on the receiver and land constraints for field layout. The advantages of speed and accuracy characteristic of Version I are maintained in DELSOL2.

  11. Megawatts vs. Negawatts: how a little can do a lot

    SciTech Connect (OSTI)

    NONE

    2008-11-15T23:59:59.000Z

    In some quarters there is increased emphasis on overall reduction of energy usage from customers. One indication of the growing significance of negawatts is apparent at PJM Interconnection, where customers are encouraged to bid negative load into the wholesale market in direct competition with megawatts. This negative load, while not large in absolute terms relative to the 164 GW size of the PJM market, is nevertheless critical in introducing an element of price elasticity into what would otherwise be a virtually inelastic demand.

  12. MAIN CAMPUS CENTRAL RECEIVING

    E-Print Network [OSTI]

    Sather-Wagstaff, Sean

    ENTRANCE H ISM LABORATORY CLASSROOM EDUCATION COLLEGE LUTHER BUILDING MAINTENANCE COURTS VOLLEYBALL BEACH DRIVE EASTLOOP BUILDING BUILDING ARCHER LIBRARY BUILDING BUILDING PARKWAY H DEVELOPMENT TO TECHNOLOGY GARDEN EEC PILOT PLANT BASEBALL DIAMOND DR. LLOYD BARBER ACADEMIC GREEN LOT 19 P 3 PLAYING FIELD 2

  13. Project Profile: A Small-Particle Solar Receiver for High-Temperature...

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

    high-temperature solar receiver in the multi-megawatt range that can drive a gas turbine to generate low-cost electricity. The goals of this project are to:...

  14. National Wind Technology Center Dynamic 5-Megawatt Dynamometer

    ScienceCinema (OSTI)

    Felker, Fort

    2014-06-10T23:59:59.000Z

    The National Wind Technology Center (NWTC) offers wind industry engineers a unique opportunity to conduct a wide range of tests. Its custom-designed dynamometers can test wind turbine systems from 1 kilowatt (kW) to 5 megawatts (MW). The NWTC's new dynamometer facility simulates operating field conditions to assess the reliability and performance of wind turbine prototypes and commercial machines, thereby reducing deployment time, failures, and maintenance or replacement costs. Funded by the U.S. Department of Energy with American Recovery and Reinvestment Act (ARRA) funds, the 5-MW dynamometer will provide the ability to test wind turbine drivetrains and connect those drivetrains directly to the electricity grid or through a controllable grid interface (CGI). The CGI tests the low-voltage ride-through capability of a drivetrain as well as its response to faults and other abnormal grid conditions.

  15. National Wind Technology Center Dynamic 5-Megawatt Dynamometer

    SciTech Connect (OSTI)

    Felker, Fort

    2013-11-13T23:59:59.000Z

    The National Wind Technology Center (NWTC) offers wind industry engineers a unique opportunity to conduct a wide range of tests. Its custom-designed dynamometers can test wind turbine systems from 1 kilowatt (kW) to 5 megawatts (MW). The NWTC's new dynamometer facility simulates operating field conditions to assess the reliability and performance of wind turbine prototypes and commercial machines, thereby reducing deployment time, failures, and maintenance or replacement costs. Funded by the U.S. Department of Energy with American Recovery and Reinvestment Act (ARRA) funds, the 5-MW dynamometer will provide the ability to test wind turbine drivetrains and connect those drivetrains directly to the electricity grid or through a controllable grid interface (CGI). The CGI tests the low-voltage ride-through capability of a drivetrain as well as its response to faults and other abnormal grid conditions.

  16. Low seismic velocity layers in the Earth's crust beneath Eastern Siberia (Russia) and Central Mongolia: receiver function data

    E-Print Network [OSTI]

    Gao, Stephen Shangxing

    Mongolia: receiver function data and their possible geological implication Yu.A. Zorina,*, V.V. Mordvinovaa­Baikal, Paleozoic Mongolian, Early Mesozoic Mongolia­Okhotsk fold areas, and beneath the Siberian platform

  17. Preliminary design of the Carrisa Plains solar central receiver power plant. Volume III, Book 3. Appendices. Part 2

    SciTech Connect (OSTI)

    Lee, S. K.

    1983-12-31T23:59:59.000Z

    The auxiliary heat transport systems of the Carrisa Plains Solar Power Plant (CPSPP) comprise facilities which are used to support plant operation and provide plant safety and maintenance. The facilities are the sodium purification system, argon cover gas system, sodium receiving and filling system, sodium-water reaction product receiving system, and safety and maintenance equipment. The functions of the facilities of the auxiliary system are described. Design requirements are established based on plant operating parameters. Descriptions are given on the system which will be adequate to perform the function and satisfy the requirements. Valve and equipment lists are included in the appendix.

  18. Central receiver solar thermal power system, Phase 1: CDRL Item 2, pilot plant preliminary design report. Volume VII. Pilot plant cost and commercial plant cost and performance

    SciTech Connect (OSTI)

    Hallet, Jr., R. W.; Gervais, R. L.

    1980-05-01T23:59:59.000Z

    Detailed cost and performance data for the proposed tower focus pilot plant and commercial plant are given. The baseline central receiver concept defined by the MDAC team consists of the following features: (A) an external receiver mounted on a tower, and located in a 360/sup 0/ array of sun-tracking heliostats which comprise the collector subsystem. (B) feedwater from the electrical power generation subsystem is pumped through a riser to the receiver, where the feedwater is converted to superheated steam in a single pass through the tubes of the receiver panels. (C) The steam from the receiver is routed through a downcomer to the ground and introduced to a turbine directly for expansion and generation of electricity, and/or to a thermal storage subsystem, where the steam is condensed in charging heat exchangers to heat a dual-medium oil and rock thermal storage unit (TSU). (D) Extended operation after daylight hours is facilitated by discharging the TSU to generate steam for feeding the admission port of the turbine. (E) Overall control of the system is provided by a master control unit, which handles the interactions between subsystems that take place during startup, shutdown, and transitions between operating modes. (WHK)

  19. Preliminary design of the Carrisa Plains solar central receiver power plant. Volume III, Book 3. Appendices, Part 1

    SciTech Connect (OSTI)

    Mouradian, E. M.

    1983-12-31T23:59:59.000Z

    Thermal analyses for the preliminary design phase of the Receiver of the Carrizo Plains Solar Power Plant are presented. The sodium reference operating conditions (T/sub in/ = 610/sup 0/F, T/sub out/ = 1050/sup 0/F) have been considered. Included are: Nominal flux distribution on receiver panal, Energy input to tubes, Axial temperature distribution; sodium and tubes, Sodium flow distribution, Sodium pressure drop, orifice calculations, Temperature distribution in tube cut (R-0), Backface structure, and Nonuniform sodium outlet temperature. Transient conditions and panel front face heat losses are not considered. These are to be addressed in a subsequent design phase. Also to be considered later are the design conditions as variations from the nominal reference (operating) condition. An addendum, designated Appendix C, has been included describing panel heat losses, panel temperature distribution, and tube-manifold joint thermal model.

  20. A Megawatt-level 28z GHz Heating System For The National Spherical Torus Experiment Upgrade

    SciTech Connect (OSTI)

    Taylor, Gary

    2014-04-01T23:59:59.000Z

    The National Spherical Torus Experiment Upgrade (NSTX-U) will operate at axial toroidal fields of < 1 T and plasma currents, Ip < 2 MA. The development of non-inductive (NI) plasmas is a major long-term research goal for NSTX-U. Time dependent numerical simulations of 28 GHz electron cyclotron (EC) heating of low density NI start-up plasmas generated by Coaxial Helicity Injection (CHI) in NSTX-U predict a significant and rapid increase of the central electron temperature (Te(0)) before the plasma becomes overdense. The increased Te(0) will significantly reduce the Ip decay rate of CHI plasmas, allowing the coupling of fast wave heating and neutral beam injection. A megawatt-level, 28 GHz electron heating system is planned for heating NI start-up plasmas in NSTX-U. In addition to EC heating of CHI start-up discharges, this system will be used for electron Bernstein wave (EBW) plasma start-up, and eventually for EBW heating and current drive during the Ip flattop.

  1. Application of industrial heat pumps Proven applications in 2012 for Megawatt+

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    Application of industrial heat pumps Proven applications in 2012 for Megawatt+ Heatpumps within a technical, commercial and sustainable framework Application of industrial heat pumps Proven applications Emerson Climate Technologies Core Offerings & Key Brands Residential Heating & Air Conditioning Commercial

  2. Results of molten salt panel and component experiments for solar central receivers: Cold fill, freeze/thaw, thermal cycling and shock, and instrumentation tests

    SciTech Connect (OSTI)

    Pacheco, J.E.; Ralph, M.E.; Chavez, J.M.; Dunkin, S.R.; Rush, E.E.; Ghanbari, C.M.; Matthews, M.W.

    1995-01-01T23:59:59.000Z

    Experiments have been conducted with a molten salt loop at Sandia National Laboratories in Albuquerque, NM to resolve issues associated with the operation of the 10MW{sub e} Solar Two Central Receiver Power Plant located near Barstow, CA. The salt loop contained two receiver panels, components such as flanges and a check valve, vortex shedding and ultrasonic flow meters, and an impedance pressure transducer. Tests were conducted on procedures for filling and thawing a panel, and assessing components and instrumentation in a molten salt environment. Four categories of experiments were conducted: (1) cold filling procedures, (2) freeze/thaw procedures, (3) component tests, and (4) instrumentation tests. Cold-panel and -piping fill experiments are described, in which the panels and piping were preheated to temperatures below the salt freezing point prior to initiating flow, to determine the feasibility of cold filling the receiver and piping. The transient thermal response was measured, and heat transfer coefficients and transient stresses were calculated from the data. Freeze/thaw experiments were conducted with the panels, in which the salt was intentionally allowed to freeze in the receiver tubes, then thawed with heliostat beams. Slow thermal cycling tests were conducted to measure both how well various designs of flanges (e.g., tapered flanges or clamp type flanges) hold a seal under thermal conditions typical of nightly shut down, and the practicality of using these flanges on high maintenance components. In addition, the flanges were thermally shocked to simulate cold starting the system. Instrumentation such as vortex shedding and ultrasonic flow meters were tested alongside each other, and compared with flow measurements from calibration tanks in the flow loop.

  3. MARS15 study of the Energy Production Demonstrator Model for Megawatt

    E-Print Network [OSTI]

    McDonald, Kirk

    MARS15 study of the Energy Production Demonstrator Model for Megawatt proton beams in the 0.5 ­ 120 Targetry Workshop HPT5, Fermilab #12;Energy Production Demonstrator MARS15 Model · Solid targets · R= 60 cm · Energy Production/Materials Testing · LAQGSM/CEM generators were usedU-nat, 3 GeV, Energy deposition, Ge

  4. Integrated (operational) piping and instrumentation diagrams (RADL item 2-38). 10-MWe solar-thermal central-receiver pilot plant, solar-facilities design integration

    SciTech Connect (OSTI)

    Not Available

    1981-06-01T23:59:59.000Z

    Included in this drawing set are: composite operational piping and instrumentation diagrams for the overall plant, for the receiver system, for the thermal storage system, and for the electrical power generation system; receiver preheat panel feedwater; receiver boiler panels, main steam manifold, GN/sub 2/ and drain systems; thermal storage system oil, steam and condensate systems and ullage and maintenance unit; steam system; turbine system; feedwater and condensate system; condenser and condensate drains; equipment cooling water system; circulating water system; sumps and drains; turbine control oil and lube oil system; sampling system; condensate polishing system; service water system; water treatment system; fire protection system; instrument air and service air system; and miscellaneous systems. (LEW)

  5. High-temperature ceramic receivers

    SciTech Connect (OSTI)

    Jarvinen, P. O.

    1980-01-01T23:59:59.000Z

    An advanced ceramic dome cavity receiver is discussed which heats pressurized gas to temperatures above 1800/sup 0/F (1000/sup 0/C) for use in solar Brayton power systems of the dispersed receiver/dish or central receiver type. Optical, heat transfer, structural, and ceramic material design aspects of the receiver are reported and the development and experimental demonstration of a high-temperature seal between the pressurized gas and the high-temperature silicon carbide dome material is described.

  6. Presented at Solar World Congress, Beijing, September 18 22 2007 PARABOLOIDAL DISH SOLAR CONCENTRATORS FOR MULTI-MEGAWATT

    E-Print Network [OSTI]

    ,AUSTRALIA AUSTRALIA keith.lovegrove@anu.edu.au ABSTRACT Large scale solar thermal electric power generation CONCENTRATORS FOR MULTI-MEGAWATT POWER GENERATION Keith Lovegrove A Zawadski and J Coventy Department of Engineering, Wizard Power Pty Ltd Australian National University, Barry Drive Canberra ACT 0200 Canberra ACT

  7. Economic Development Impacts of Colorado's First 1,000 Megawatts of Wind Energy

    SciTech Connect (OSTI)

    Not Available

    2009-01-01T23:59:59.000Z

    This fact sheet summarizes the findings of a report authored by Sandra Reategui and Suzanne Tegen of the National Renewable Energy Laboratory (NREL). A confluence of events ignited soaring growth in the number of Colorado?s wind power installations in recent years, from 291 megawatts (MW) of nameplate capacity in 2006 to 1,067 MW (nameplate capacity) in 2007. Analyzing the economic impact of Colorado?s first 1,000 MW of wind energy development not only provides a summary of benefits now enjoyed by the state?s population, but it also provides a sense of the economic development opportunities associated with other new wind project scenarios, including the U.S. Department of Energy?s 20% Wind Energy by 2030 scenario. The analysis can be used by interested parties in other states as an example of the potential economic impacts if they were to adopt 1,000 MW of wind power development.

  8. Suppression of spurious mode oscillation in mega-watt 77-GHz gyrotron as a high quality probe beam source for the collective Thomson scattering in LHD

    SciTech Connect (OSTI)

    Ogasawara, S. [Department of Energy Engineering and Science, Nagoya University, Nagoya 464-8463 (Japan); Kubo, S. [Department of Energy Engineering and Science, Nagoya University, Nagoya 464-8463 (Japan); National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi 509-5292 (Japan); Nishiura, M.; Tanaka, K.; Shimozuma, T.; Yoshimura, Y.; Igami, H.; Takahashi, H.; Ito, S.; Takita, Y.; Kobayashi, S.; Mizuno, Y.; Okada, K. [National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi 509-5292 (Japan); Tatematsu, Y.; Saito, T. [Research Center for Development of Far-Infrared Region, University of Fukui, Fukui 910-8507 (Japan); Minami, R.; Kariya, T.; Imai, T. [Plasma Research Center, University of Tsukuba, Tsukuba 305-8577 (Japan)

    2012-10-15T23:59:59.000Z

    Collective Thomson scattering (CTS) diagnostic requires a strong probing beam to diagnose a bulk and fast ion distribution function in fusion plasmas. A mega-watt gyrotron for electron cyclotron resonance heating is used as a probing beam in the large helical device. Spurious mode oscillations are often observed during the turning on/off phase of the modulation. The frequency spectra of the 77-GHz gyrotron output power have been measured, and then one of the spurious modes, which interferes with the CTS receiver system, is identified as the TE{sub 17,6} mode at the frequency of 74.7 GHz. The mode competition calculation indicates that the increase of the magnetic field strength at the gyrotron resonator can avoid such a spurious mode and excite only the main TE{sub 18,6} mode. The spurious radiation at the 74.7 GHz is experimentally demonstrated to be suppressed in the stronger magnetic field than that optimized for the high-power operation.

  9. Comparative Assessment of Direct Drive High Temperature Superconducting Generators in Multi-Megawatt Class Wind Turbines

    SciTech Connect (OSTI)

    Maples, B.; Hand, M.; Musial, W.

    2010-10-01T23:59:59.000Z

    This paper summarizes the work completed under the CRADA between NREL and American Superconductor (AMSC). The CRADA combined NREL and AMSC resources to benchmark high temperature superconducting direct drive (HTSDD) generator technology by integrating the technologies into a conceptual wind turbine design, and comparing the design to geared drive and permanent magnet direct drive (PMDD) wind turbine configurations. Analysis was accomplished by upgrading the NREL Wind Turbine Design Cost and Scaling Model to represent geared and PMDD turbines at machine ratings up to 10 MW and then comparing cost and mass figures of AMSC's HTSDD wind turbine designs to theoretical geared and PMDD turbine designs at 3.1, 6, and 10 MW sizes. Based on the cost and performance data supplied by AMSC, HTSDD technology has good potential to compete successfully as an alternative technology to PMDD and geared technology turbines in the multi megawatt classes. In addition, data suggests the economics of HTSDD turbines improve with increasing size, although several uncertainties remain for all machines in the 6 to 10 MW class.

  10. A Conceptual Multi-Megawatt System Based on a Tungsten CERMET Reactor

    SciTech Connect (OSTI)

    Jonathan A. Webb; Brian Gross

    2011-02-01T23:59:59.000Z

    Abstract. A conceptual reactor system to support Multi-Megawatt Nuclear Electric Propulsion is investigated within this paper. The reactor system consists of a helium cooled Tungsten-UN fission core, surrounded by a beryllium neutron reflector and 13 B4C control drums coupled to a high temperature Brayton power conversion system. Excess heat is rejected via carbon reinforced heat pipe radiators and the gamma and neutron flux is attenuated via segmented shielding consisting of lithium hydride and tungsten layers. Turbine inlet temperatures ranging from 1300 K to 1500 K are investigated for their effects on specific powers and net electrical outputs ranging from 1 MW to 100 MW. The reactor system is estimated to have a mass, which ranges from 15 Mt at 1 MWe and a turbine inlet temperature of 1500 K to 1200 Mt at 100 MWe and a turbine temperature of 1300 K. The reactor systems specific mass ranges from 32 kg/kWe at a turbine inlet temperature of 1300 K and a power of 1 MWe to 9.5 kg/kW at a turbine temperature of 1500 K and a power of 100 MWe.

  11. Sandia National Laboratories: Central Receiver test facility

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

    Test Facility (CRTF) is a major location for developing technology to produce electricity from the heat of the sun's energy. This technology is expected to be commercially...

  12. Solar Central Receiver with an Irising Aperture

    E-Print Network [OSTI]

    Galal, T.; Kulaib, A. M.; Abuzaid, M.

    2010-01-01T23:59:59.000Z

    . If the aperture is small, it will be inefficient for periods when the solar isolation is inclined due to spillage. However, if the aperture is large, it will be inefficient for periods when the solar isolation is normal, due to excess heat radiation and convection...

  13. Sandia Energy - Central Receiver Test Facility

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

    power generation. As the nation's prime test resource for the DOE program to develop solar thermal electric power, the CRTF also serves other researchers, including government...

  14. Solar Central Receiver with an Irising Aperture 

    E-Print Network [OSTI]

    Galal, T.; Kulaib, A. M.; Abuzaid, M.

    2010-01-01T23:59:59.000Z

    . If the aperture is small, it will be inefficient for periods when the solar isolation is inclined due to spillage. However, if the aperture is large, it will be inefficient for periods when the solar isolation is normal, due to excess heat radiation and convection...

  15. Radiation receiver

    DOE Patents [OSTI]

    Hunt, A.J.

    1983-09-13T23:59:59.000Z

    The apparatus for collecting radiant energy and converting same to alternate energy form includes a housing having an interior space and a radiation transparent window allowing, for example, solar radiation to be received in the interior space of the housing. Means are provided for passing a stream of fluid past said window and for injecting radiation absorbent particles in said fluid stream. The particles absorb the radiation and because of their very large surface area, quickly release the heat to the surrounding fluid stream. The fluid stream particle mixture is heated until the particles vaporize. The fluid stream is then allowed to expand in, for example, a gas turbine to produce mechanical energy. In an aspect of the present invention properly sized particles need not be vaporized prior to the entrance of the fluid stream into the turbine, as the particles will not damage the turbine blades. In yet another aspect of the invention, conventional fuel injectors are provided to inject fuel into the fluid stream to maintain the proper temperature and pressure of the fluid stream should the source of radiant energy be interrupted. In yet another aspect of the invention, an apparatus is provided which includes means for providing a hot fluid stream having hot particles disbursed therein which can radiate energy, means for providing a cooler fluid stream having cooler particles disbursed therein, which particles can absorb radiant energy and means for passing the hot fluid stream adjacent the cooler fluid stream to warm the cooler fluid and cooler particles by the radiation from the hot fluid and hot particles. 5 figs.

  16. Radiation receiver

    DOE Patents [OSTI]

    Hunt, Arlon J. (Oakland, CA)

    1983-01-01T23:59:59.000Z

    The apparatus for collecting radiant energy and converting same to alternate energy form includes a housing having an interior space and a radiation transparent window allowing, for example, solar radiation to be received in the interior space of the housing. Means are provided for passing a stream of fluid past said window and for injecting radiation absorbent particles in said fluid stream. The particles absorb the radiation and because of their very large surface area, quickly release the heat to the surrounding fluid stream. The fluid stream particle mixture is heated until the particles vaporize. The fluid stream is then allowed to expand in, for example, a gas turbine to produce mechanical energy. In an aspect of the present invention properly sized particles need not be vaporized prior to the entrance of the fluid stream into the turbine, as the particles will not damage the turbine blades. In yet another aspect of the invention, conventional fuel injectors are provided to inject fuel into the fluid stream to maintain the proper temperature and pressure of the fluid stream should the source of radiant energy be interrupted. In yet another aspect of the invention, an apparatus is provided which includes means for providing a hot fluid stream having hot particles disbursed therein which can radiate energy, means for providing a cooler fluid stream having cooler particles disbursed therein, which particles can absorb radiant energy and means for passing the hot fluid stream adjacent the cooler fluid stream to warm the cooler fluid and cooler particles by the radiation from the hot fluid and hot particles.

  17. Kazakhstan receiving acreage applications

    SciTech Connect (OSTI)

    Not Available

    1995-01-09T23:59:59.000Z

    Kazakhstan is receiving applications for exploration and development rights to large tracts in the central and eastern parts of the republic. The program is part of a country-wide effort to attract more foreign investigators to help underwrite massive industrial privatization aimed at revitalizing Kazakhstan's economy. A delegation of Kazakh officials visited Houston the last week in November to publicize petroleum opportunities in the republic and appeared Dec. 1--2 at a conference to present an overview of Kazakhstan's petroleum prospectivity. Officials also reviewed recently approved legal, financial, and environmental legislation intended to improve the attractiveness of investing in Kazakhstan's energy sector. This paper discusses the status of development, gives a geologic overview, and highlights the geology of the South Torgay and Teniz basins.

  18. PARABOLOIDAL DISH SOLAR CONCENTRATORS FOR MULTI-MEGAWATT POWER GENERATION Keith Lovegrove , Tui Taumoefolau, Sawat Paitoonsurikarn, Piya Siangsukone, Greg Burgess, Andreas Luzzi,

    E-Print Network [OSTI]

    PARABOLOIDAL DISH SOLAR CONCENTRATORS FOR MULTI-MEGAWATT POWER GENERATION Keith Lovegrove , Tui, Wie Joe and Geoff Major. Centre for Sustainable Energy Systems, Department of Engineering, Australian National University, Canberra ACT 0200, AUSTRALIA ph:+61 02 6125 8299 fax: +61 02 6125 0506 E-mail: keith

  19. Utilities in California and Washington Receive Honors for Innovative...

    Office of Environmental Management (EM)

    more than 710 megawatts of installed wind capacity. By carefully structuring the power purchase agreements across five wind projects, Southern California secured energy...

  20. Evaluation of the megawatt demand setter for load-follow operation of C-E's SYSTEM 80+

    SciTech Connect (OSTI)

    Choi, J.I.; Scarola, K.

    1989-01-01T23:59:59.000Z

    The Megawatt Demand Setter (MDS) is a digital supervisory control system that automatically assures that the turbine load is consistent with plant operating limits for critical parameters. The MDS is designed to avert plant trips by limiting the load demand during load transients and by reducing the turbine load if plant operating limits are approached or violated. The MDS, devised and patented by Combustion Engineering, Inc., in the 1970s for automatic load dispatching, has been installed at two plants. Those plants have since been operated in a base-load capacity, however, and have not needed to implement the load-follow capabilities of the MDS. As the percentage of electricity generated by nuclear units increases, the need to implement such load-follow capabilities will also increase. Combustion Engineering intends to incorporate improved load-follow capability in its SYSTEM 80+ nuclear steam supply system (NSSS) design. One aspect of this will be incorporation of the MDS in the design of the NUPLEX 80+ advanced control complex for system 80+. This paper presents an evaluation of two major design features of the MDS for load-follow operation based on simulation of SYSTEM 80+ plant responses.

  1. Solar heat receiver

    DOE Patents [OSTI]

    Hunt, Arlon J. (Oakland, CA); Hansen, Leif J. (Berkeley, CA); Evans, David B. (Orinda, CA)

    1985-01-01T23:59:59.000Z

    A receiver for converting solar energy to heat a gas to temperatures from 700.degree.-900.degree. C. The receiver is formed to minimize impingement of radiation on the walls and to provide maximum heating at and near the entry of the gas exit. Also, the receiver is formed to provide controlled movement of the gas to be heated to minimize wall temperatures. The receiver is designed for use with gas containing fine heat absorbing particles, such as carbon particles.

  2. Solar heat receiver

    DOE Patents [OSTI]

    Hunt, A.J.; Hansen, L.J.; Evans, D.B.

    1982-09-29T23:59:59.000Z

    A receiver is described for converting solar energy to heat a gas to temperatures from 700 to 900/sup 0/C. The receiver is formed to minimize impingement of radiation on the walls and to provide maximum heating at and near the entry of the gas exit. Also, the receiver is formed to provide controlled movement of the gas to be heated to minimize wall temperatures. The receiver is designed for use with gas containing fine heat absorbing particles, such as carbon particles.

  3. Data-fusion receiver

    DOE Patents [OSTI]

    Gabelmann, Jeffrey M.; Kattner, J. Stephen; Houston, Robert A.

    2006-12-19T23:59:59.000Z

    This invention is an ultra-low frequency electromagnetic telemetry receiver which fuses multiple input receive sources to synthesize a decodable message packet from a noise corrupted telemetry message string. Each block of telemetry data to be sent to the surface receiver from a borehole tool is digitally encoded into a data packet prior to transmission. The data packet is modulated onto the ULF EM carrier wave and transmitted from the borehole to the surface and then are simultaneously detected by multiple receive sensors disbursed within the rig environment. The receive sensors include, but are not limited to, electric field and magnetic field sensors. The spacing of the surface receive elements is such that noise generators are unequally coupled to each receive element due to proximity and/or noise generator type (i.e. electric or magnetic field generators). The receiver utilizes a suite of decision metrics to reconstruct the original, non noise-corrupted data packet from the observation matrix via the estimation of individual data frames. The receiver will continue this estimation process until: 1) the message validates, or 2) a preset "confidence threshold" is reached whereby frames within the observation matrix are no longer "trusted".

  4. Mometasone Furoate Effect on Acute Skin Toxicity in Breast Cancer Patients Receiving Radiotherapy: A Phase III Double-Blind, Randomized Trial From the North Central Cancer Treatment Group N06C4

    SciTech Connect (OSTI)

    Miller, Robert C., E-mail: miller.robert@mayo.ed [Department of Radiation Oncology, Mayo Clinic, Rochester, MN (United States); Schwartz, David J. [Minneapolis Radiation Oncology, P.A., Minneapolis, MN (United States); Sloan, Jeff A. [Division of Biomedical Informatics and Biostatistics, Mayo Clinic, Rochester, MN (United States); Griffin, Patricia C. [Upstate Carolina Community Clinic Oncology Program, Spartanburg, SC (United States); Deming, Richard L. [Iowa Oncology Research Association Community Clinic Oncology Program, Des Moines, Iowa (United States); Anders, Jon C. [Wichita Community Clinical Oncology Program, Wichita, KS (United States); Stoffel, Thomas J. [Cedar Rapids Oncology Project Community Clinic Oncology Program, Cedar Rapids, IA (United States); Haselow, Robert E. [Metro-Minnesota Community Clinical Oncology Program, St. Louis Park, MN (United States); Schaefer, Paul L. [Toledo Community Hospital Oncology Program Community Clinic Oncology Program, Toledo, OH (United States); Bearden, James D. [Upstate Carolina Community Clinic Oncology Program, Spartanburg, SC (United States); Atherton, Pamela J. [Division of Biomedical Informatics and Biostatistics, Mayo Clinic, Rochester, MN (United States); Loprinzi, Charles L.; Martenson, James A. [Department of Radiation Oncology, Mayo Clinic, Rochester, MN (United States)

    2011-04-01T23:59:59.000Z

    Purpose: A two-arm, double-blind, randomized trial was performed to evaluate the effect of 0.1% mometasone furoate (MMF) on acute skin-related toxicity in patients undergoing breast or chest wall radiotherapy. Methods and Materials: Patients with ductal carcinoma in situ or invasive breast carcinoma who were undergoing external beam radiotherapy to the breast or chest wall were randomly assigned to apply 0.1% MMF or placebo cream daily. The primary study endpoint was the provider-assessed maximal grade of Common Terminology Criteria for Adverse Events, version 3.0, radiation dermatitis. The secondary endpoints included provider-assessed Common Terminology Criteria for Adverse Events Grade 3 or greater radiation dermatitis and adverse event monitoring. The patient-reported outcome measures included the Skindex-16, the Skin Toxicity Assessment Tool, a Symptom Experience Diary, and a quality-of-life self-assessment. An assessment was performed at baseline, weekly during radiotherapy, and for 2 weeks after radiotherapy. Results: A total of 176 patients were enrolled between September 21, 2007, and December 7, 2007. The provider-assessed primary endpoint showed no difference in the mean maximum grade of radiation dermatitis by treatment arm (1.2 for MMF vs. 1.3 for placebo; p = .18). Common Terminology Criteria for Adverse Events toxicity was greater in the placebo group (p = .04), primarily from pruritus. For the patient-reported outcome measures, the maximum Skindex-16 score for the MMF group showed less itching (p = .008), less irritation (p = .01), less symptom persistence or recurrence (p = .02), and less annoyance with skin problems (p = .04). The group's maximal Skin Toxicity Assessment Tool score showed less burning sensation (p = .02) and less itching (p = .002). Conclusion: Patients receiving daily MMF during radiotherapy might experience reduced acute skin toxicity compared with patients receiving placebo.

  5. megatons to megawatts

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilAElectronic Input Options Gary L. HirschOccurrencei-rapter |

  6. Megawatt Electrolysis Scale Up

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment3311, 3312), OctoberMay 18-19, 2004MW Electrolysis Scale Up E

  7. Multichannel homodyne receiver

    DOE Patents [OSTI]

    Landt, J.A.

    1981-01-19T23:59:59.000Z

    A homodyne radar transmitter/receiver device which produces a single combined output which contains modulated backscatter information for all phase conditions of both modulated and unmodulated backscatter signals is described. The device utilizes taps along coaxial transmission lines, strip transmission line, and waveguides which are spaced by 1/8 wavelength or 1/6 wavelength, etc. This greatly reduces costs by eliminating separate transmission and reception antennas and an expensive arrangement of power splitters and mixers utilized in the prior art.

  8. Multichannel homodyne receiver

    DOE Patents [OSTI]

    Landt, Jeremy A. (Los Alamos, NM)

    1982-01-01T23:59:59.000Z

    A homodyne radar transmitter/receiver device which produces a single combined output which contains modulated backscatter information for all phase conditions of both modulated and unmodulated backscatter signals. The device utilizes taps along coaxial transmission lines, strip transmission line, and waveguides which are spaced by 1/8 wavelength or 1/6 wavelength, etc. This greatly reduces costs by eliminating separate transmission and reception antennas and an expensive arrangement of power splitters and mixers utilized in the prior art.

  9. Project Profile: Advanced Nitrate Salt Central Receiver Power Plant |

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM615_CostNSAR - TProcuring Solar forProjectDepartment of Energy

  10. Ultra-wideband receiver

    DOE Patents [OSTI]

    McEwan, T.E.

    1994-09-06T23:59:59.000Z

    An ultra-wideband (UWB) receiver utilizes a strobed input line with a sampler connected to an amplifier. In a differential configuration, [+-] UWB inputs are connected to separate antennas or to two halves of a dipole antenna. The two input lines include samplers which are commonly strobed by a gating pulse with a very low duty cycle. In a single ended configuration, only a single strobed input line and sampler is utilized. The samplers integrate, or average, up to 10,000 pulses to achieve high sensitivity and good rejection of uncorrelated signals. 16 figs.

  11. Ultra-wideband receiver

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1996-01-01T23:59:59.000Z

    An ultra-wideband (UWB) receiver utilizes a strobed input line with a sampler connected to an amplifier. In a differential configuration, .+-.UWB inputs are connected to separate antennas or to two halves of a dipole antenna. The two input lines include samplers which are commonly strobed by a gating pulse with a very low duty cycle. In a single ended configuration, only a single strobed input line and sampler is utilized. The samplers integrate, or average, up to 10,000 pulses to achieve high sensitivity and good rejection of uncorrelated signals.

  12. Ultra-wideband receiver

    DOE Patents [OSTI]

    McEwan, T.E.

    1996-06-04T23:59:59.000Z

    An ultra-wideband (UWB) receiver utilizes a strobed input line with a sampler connected to an amplifier. In a differential configuration, {+-}UWB inputs are connected to separate antennas or to two halves of a dipole antenna. The two input lines include samplers which are commonly strobed by a gating pulse with a very low duty cycle. In a single ended configuration, only a single strobed input line and sampler is utilized. The samplers integrate, or average, up to 10,000 pulses to achieve high sensitivity and good rejection of uncorrelated signals. 21 figs.

  13. Ultra-wideband receiver

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1994-01-01T23:59:59.000Z

    An ultra-wideband (UWB) receiver utilizes a strobed input line with a sampler connected to an amplifier. In a differential configuration, .+-.UWB inputs are connected to separate antennas or to two halves of a dipole antenna. The two input lines include samplers which are commonly strobed by a gating pulse with a very low duty cycle. In a single ended configuration, only a single strobed input line and sampler is utilized. The samplers integrate, or average, up to 10,000 pulses to achieve high sensitivity and good rejection of uncorrelated signals.

  14. Support and maneuvering apparatus for solar energy receivers

    DOE Patents [OSTI]

    Murphy, Lawrence M. (Littleton, CO)

    1989-01-01T23:59:59.000Z

    A support and maneuvering apparatus is disclosed for a solar energy receiving device adpated for receiving and concentrating solar energy and having a central axis extending through the center thereof. The apparatus includes a frame for mounting the perimeter of said solar energy receiving device. A support member extends along the central axis of the receiving device and has a base end passing through the center of the receiving device and an outer distal end adapted for carrying a solar energy receiving and conversion mechanism. A variable tension mechanism interconnects the support member with the frame to provide stiffening for the support member and the frame and to assist in the alignment of the frame to optimize the optical efficiency of the solar energy receiving device. A rotatable base is provided, and connecting members extend from the base for pivotable attachment to the frame at spaced positions therealong. Finally, an elevation assembly is connected to the receiving device for selectively pivoting the receiving device about an axis defined between the attachment positions of the connecting members on the frame.

  15. Support and maneuvering apparatus for solar energy receivers

    DOE Patents [OSTI]

    Murphy, L.M.

    1988-07-28T23:59:59.000Z

    A support and maneuvering apparatus is disclosed for a solar energy receiving device adapted for receiving and concentrating solar energy and having a central axis extending through the center thereof. The apparatus includes a frame for mounting the perimeter of said solar energy receiving device. A support member extends along the central axis of the receiving device and has a base end passing through the center of the receiving device and an outer distal end adapted for carrying a solar energy receiving and conversion mechanism. A variable tension mechanism interconnects the support member with the frame to provide stiffening for the support member and the frame and to assist in the alignment of the frame to optimize the optical efficiency of the solar energy receiving device. A rotatable base is provided, and connecting members extend from the base for pivotable attachment to the frame at spaced positions therealong. Finally, an elevation assembly is connected to the receiving device for selectively pivoting the receiving about an axis defined between the attachment positions of the connecting members on the frame. 4 figs.

  16. Lessons from Iowa : development of a 270 megawatt compressed air energy storage project in midwest Independent System Operator : a study for the DOE Energy Storage Systems Program.

    SciTech Connect (OSTI)

    Holst, Kent (Iowa Stored Energy Plant Agency, Traer, IA); Huff, Georgianne; Schulte, Robert H. (Schulte Associates LLC, Northfield, MN); Critelli, Nicholas (Critelli Law Office PC, Des Moines, IA)

    2012-01-01T23:59:59.000Z

    The Iowa Stored Energy Park was an innovative, 270 Megawatt, $400 million compressed air energy storage (CAES) project proposed for in-service near Des Moines, Iowa, in 2015. After eight years in development the project was terminated because of site geological limitations. However, much was learned in the development process regarding what it takes to do a utility-scale, bulk energy storage facility and coordinate it with regional renewable wind energy resources in an Independent System Operator (ISO) marketplace. Lessons include the costs and long-term economics of a CAES facility compared to conventional natural gas-fired generation alternatives; market, legislative, and contract issues related to enabling energy storage in an ISO market; the importance of due diligence in project management; and community relations and marketing for siting of large energy projects. Although many of the lessons relate to CAES applications in particular, most of the lessons learned are independent of site location or geology, or even the particular energy storage technology involved.

  17. Hydrogeochemical investigation of six geothermal sites in Honduras, Central America

    SciTech Connect (OSTI)

    Goff, F.E.; Truesdell, A.H.; Grigsby, C.O.; Janik, C.J.; Shevenell, L.A.; Paredes, J.R.; Gutierrez, J.W.; Trujillo, Jr.; Counce, D.A.

    1987-06-01T23:59:59.000Z

    We conducted detailed hydrogeochemical investigations at six geothermal sites in western Honduras: Azacualpa, El Olivar, Pavana, Platanares, Sambo Creek, and San Ignacio. None of the sites is associated with Quaternary silicic volcanism, although El Olivar lies adjacent to a small Quaternary basalt field and Pavana is part of a belt of hot spring activity parallel to and 35 km east of the Central American volcanic arc. None of the sites contains acid-sulfate waters indicative of vapor-dominated conditions. Thermal fluids are characterized by pH between 7 and 10, Cl<125 mg/l, HCO/sub 3/>Cl, SO/sub 4/greater than or equal toCl, Bless than or equal to17 mg/l, Liless than or equal to4 mg/l, and Asless than or equal to1.25 mg/l. Stable isotope analyses of the water show that recharge to the geothermal systems generally occurs from areas of higher elevation adjacent to the sites. Tritium contents of apparently undiluted thermal fluids range from 0 to 0.4 T.U., indicating residence times of fluids in the systems of more than 500 y. Various geochemical indicators show that mixing of hot and cold end-member fluids occurs in the system at Platanares and, to a lesser degree, in the systems at San Ignacio and Azacualpa. No mixing is apparent in the fluids discharging at Pavana, Sambo Creek, or El Olivar. Boiling is the dominant process responsible for subtle geochemical variations at Azacualpa and, possibly, San Ignacio. Our best estimates of subsurface reservoir temperatures are 225/sup 0/C at Platanares, 190/sup 0/C at San Ignacio, 185/sup 0/C at Azacualpa, 155/sup 0/C at Sambo Creek, 150/sup 0/C at Pavana, and 120/sup 0/C at El Olivar. The estimated power output of the three hottest sites is 45 thermal megawatts at Platanares, 14 thermal megawatts at San Ignacio, and 13 thermal megawatts at Azacualpa.

  18. UWB delay and multiply receiver

    DOE Patents [OSTI]

    Dallum, Gregory E.; Pratt, Garth C.; Haugen, Peter C.; Romero, Carlos E.

    2013-09-10T23:59:59.000Z

    An ultra-wideband (UWB) delay and multiply receiver is formed of a receive antenna; a variable gain attenuator connected to the receive antenna; a signal splitter connected to the variable gain attenuator; a multiplier having one input connected to an undelayed signal from the signal splitter and another input connected to a delayed signal from the signal splitter, the delay between the splitter signals being equal to the spacing between pulses from a transmitter whose pulses are being received by the receive antenna; a peak detection circuit connected to the output of the multiplier and connected to the variable gain attenuator to control the variable gain attenuator to maintain a constant amplitude output from the multiplier; and a digital output circuit connected to the output of the multiplier.

  19. RECEIVED

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem Not Found Item Not Foundenhancer activity than FINAL Progress Report Project#ski

  20. Project Profile: Direct Supercritical Carbon Dioxide Receiver...

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

    Direct Supercritical Carbon Dioxide Receiver Development Project Profile: Direct Supercritical Carbon Dioxide Receiver Development National Renewable Energy Laboratory logo The...

  1. System using a megawatt class millimeter wave source and a high-power rectenna to beam power to a suspended platform

    DOE Patents [OSTI]

    Caplan, Malcolm; Friedman, Herbert W.

    2005-07-19T23:59:59.000Z

    A system for beaming power to a high altitude platform is based upon a high power millimeter gyrotron source, optical transmission components, and a high-power receiving antenna (i.e., a rectenna) capable of rectifying received millimeter energy and converting such energy into useable electrical power.

  2. Saving Megawatts with Voltage Optimization

    E-Print Network [OSTI]

    Wilson, T.; Bell, D.

    2010-01-01T23:59:59.000Z

    that had been installed at several electric utility distribution substations in the U.S. and Canada. These systems, being operated in Conservation Voltage Regulation mode, have provided significant energy conservation where they have been installed...

  3. UWB communication receiver feedback loop

    DOE Patents [OSTI]

    Spiridon, Alex (Palo Alto, CA); Benzel, Dave (Livermore, CA); Dowla, Farid U. (Castro Valley, CA); Nekoogar, Faranak (San Ramon, CA); Rosenbury, Erwin T. (Castro Valley, CA)

    2007-12-04T23:59:59.000Z

    A novel technique and structure that maximizes the extraction of information from reference pulses for UWB-TR receivers is introduced. The scheme efficiently processes an incoming signal to suppress different types of UWB as well as non-UWB interference prior to signal detection. Such a method and system adds a feedback loop mechanism to enhance the signal-to-noise ratio of reference pulses in a conventional TR receiver. Moreover, sampling the second order statistical function such as, for example, the autocorrelation function (ACF) of the received signal and matching it to the ACF samples of the original pulses for each transmitted bit provides a more robust UWB communications method and system in the presence of channel distortions.

  4. DYNAMIC SIMULATION OF MONO-TUBE CAVITY RECEIVERS FOR DIRECT STEAM GENERATION

    E-Print Network [OSTI]

    for intended deployment in large arrays of dishes, with steam directed to a central large steam turbine powerDYNAMIC SIMULATION OF MONO-TUBE CAVITY RECEIVERS FOR DIRECT STEAM GENERATION José Zapata 1 , John dish has been in operation since 2010 with a mono-tube steam cavity receiver, the SG4 system

  5. Accounts Receivable Western Michigan University

    E-Print Network [OSTI]

    de Doncker, Elise

    Accounts Receivable Western Michigan University 1903 W. Michigan Avenue Kalamazoo, MI 49008 have read the Western Michigan University Third Party Billing Policy and agree to the terms. I am authorizing Western Michigan University to bill for the specified tuition and related fees for the term

  6. Accounts Receivable Western Michigan University

    E-Print Network [OSTI]

    de Doncker, Elise

    Accounts Receivable Western Michigan University 1903 W. Michigan Avenue Kalamazoo, MI 49008-5210 269 387-4251 Fax 269 387-4227 THIRD PARTY BILLING POLICY Western Michigan University (WMU# (269) 387-4227 Western Michigan University 1903 W. Michigan Avenue E-mail: wmu

  7. A Digital-Receiver for the Murchison Widefield Array

    E-Print Network [OSTI]

    Prabu, Thiagaraj; Roshi, D Anish; Kamini, P A; Madhavi, S; Emrich, David; Crosse, Brian; Williams, Andrew J; Waterson, Mark; Deshpande, Avinash A; Shankar, N Udaya; Subrahmanyan, Ravi; Briggs, Frank H; Goeke, Robert F; Tingay, Steven J; Johnston-Hollitt, Melanie; R, Gopalakrishna M; Morgan, Edward H; Pathikulangara, Joseph; Bunton, John D; Hampson, Grant; Williams, Christopher; Ord, Stephen M; Wayth, Randall B; Kumar, Deepak; Morales, Miguel F; deSouza, Ludi; Kratzenberg, Eric; Pallot, D; McWhirter, Russell; Hazelton, Bryna J; Arcus, Wayne; Barnes, David G; Bernardi, Gianni; Booler, T; Bowman, Judd D; Cappallo, Roger J; Corey, Brian E; Greenhill, Lincoln J; Herne, David; Hewitt, Jacqueline N; Kaplan, David L; Kasper, Justin C; Kincaid, Barton B; Koenig, Ronald; Lonsdale, Colin J; Lynch, Mervyn J; Mitchell, Daniel A; Oberoi, Divya; Remillard, Ronald A; Rogers, Alan E; Salah, Joseph E; Sault, Robert J; Stevens, Jamie B; Tremblay, S E; Webster, Rachel L; Whitney, Alan R; Wyithe, Stuart B

    2015-01-01T23:59:59.000Z

    An FPGA-based digital-receiver has been developed for a low-frequency imaging radio interferometer, the Murchison Widefield Array (MWA). The MWA, located at the Murchison Radio-astronomy Observatory (MRO) in Western Australia, consists of 128 dual-polarized aperture-array elements (tiles) operating between 80 and 300\\,MHz, with a total processed bandwidth of 30.72 MHz for each polarization. Radio-frequency signals from the tiles are amplified and band limited using analog signal conditioning units; sampled and channelized by digital-receivers. The signals from eight tiles are processed by a single digital-receiver, thus requiring 16 digital-receivers for the MWA. The main function of the digital-receivers is to digitize the broad-band signals from each tile, channelize them to form the sky-band, and transport it through optical fibers to a centrally located correlator for further processing. The digital-receiver firmware also implements functions to measure the signal power, perform power equalization across ...

  8. Investigation of aerowindows for solar receivers. Final report

    SciTech Connect (OSTI)

    Not Available

    1984-05-04T23:59:59.000Z

    The use of aerowindows to improve the efficiency and operation of central solar receivers has been analyzed to determine the conditions under which such improvements are possible. The results have shown that the aerowindow solar receiver concept is both technically and economically viable. The energy balance in the solar receiver, with and without the aerowindow, has been estimated with conservative models of the flow and heat transfer. For receiver cavity wall temperatures in the range of 1000 to 1600 K, there is a large positive energy benefit to using the aerowindow. Effective use of the aerowindow probably will require the use of recirculated gases from the cavity to reduce mixing and heat transfer at the cavity gas/aerowindow interface. Aerowindow technology is available now from industrial air curtain technology used on open warehouse entrances with dimensions similar to the apertures of large solar receivers. The cost of these devices is modest in terms of the cost of the energy saved, with the result that the payback period under broad ranges of receiver sizes and operating conditions is 1 to 5 years, even for relatively low equivalent costs for the thermal power being saved.

  9. SAW correlator spread spectrum receiver

    DOE Patents [OSTI]

    Brocato, Robert W

    2014-04-01T23:59:59.000Z

    A surface acoustic wave (SAW) correlator spread-spectrum (SS) receiver is disclosed which utilizes a first demodulation stage with a chip length n and a second demodulation stage with a chip length m to decode a transmitted SS signal having a code length l=n.times.m which can be very long (e.g. up to 2000 chips or more). The first demodulation stage utilizes a pair of SAW correlators which demodulate the SS signal to generate an appropriate code sequence at an intermediate frequency which can then be fed into the second demodulation stage which can be formed from another SAW correlator, or by a digital correlator. A compound SAW correlator comprising two input transducers and a single output transducer is also disclosed which can be used to form the SAW correlator SS receiver, or for use in processing long code length signals.

  10. Digital-data receiver synchronization

    DOE Patents [OSTI]

    Smith, Stephen F.; Turner, Gary W.

    2005-08-02T23:59:59.000Z

    Digital-data receiver synchronization is provided with composite phase-frequency detectors, mutually cross-connected comparison feedback or both to provide robust reception of digital data signals. A single master clock can be used to provide frequency signals. Advantages can include fast lock-up time in moderately to severely noisy conditions, greater tolerance to noise and jitter when locked, and improved tolerance to clock asymmetries.

  11. Receiver designs for multiuser underwater acoustic communications

    E-Print Network [OSTI]

    Cho, Steve E.

    2012-01-01T23:59:59.000Z

    Receiver block diagram employing SIC, ATR, MP, and a jointReceiver block diagram employing SIC, ATR, MP, and a joint

  12. Receiving Water and Other Impacts Robert Pitt

    E-Print Network [OSTI]

    Pitt, Robert E.

    5-1 Chapter 5 Receiving Water and Other Impacts Robert Pitt Desired Water Uses Versus Stormwater Impacts The main purpose of treating stormwater is to reduce its adverse impacts on receiving water of the detrimental effects that runoff is actually having on a receiving water. Urban receiving waters may have many

  13. Segmentation of the Hellenides recorded by Pliocene initiation of clockwise block rotation in Central Greece

    E-Print Network [OSTI]

    Weiss, Benjamin P.

    in Central Greece Kyle E. Bradley a,n , Emmanuel Vassilakis b , Aleksandra Hosa a,1 , Benjamin P. Weiss Athens, Greece a r t i c l e i n f o Article history: Received 11 July 2012 Received in revised form 14 sedimentary and volcanic rocks in Central Greece constrain the history of vertical-axis rotation along

  14. Deciphering oblique shortening of central Alborz in Iran using geodetic data

    E-Print Network [OSTI]

    Demouchy, Sylvie

    Deciphering oblique shortening of central Alborz in Iran using geodetic data Ph. Vernanta,*, F 13185-1684, Meraj Av., Tehran, Iran Received 27 January 2004; received in revised form 16 April 2004 accommodates the differential motion between the Sanandaj­Sirjan zone in central Iran and the South Caspian

  15. Neoproterozoic tectonothermal evolution of the Central Eastern Desert, Egypt: a slow velocity tectonic process

    E-Print Network [OSTI]

    Fritz, Harald

    Neoproterozoic tectonothermal evolution of the Central Eastern Desert, Egypt: a slow velocity, University of Assiut, Egypt Received 10 January 2001; received in revised form 24 October 2001; accepted 25 in the Central Eastern Desert of Egypt is constraint by 40 Ar/39 Ar ages of hornblende and muscovite from Meatiq

  16. Miocene faulting at plate tectonic velocity in the Himalaya of central Nepal

    E-Print Network [OSTI]

    Miocene faulting at plate tectonic velocity in the Himalaya of central Nepal Matthew J. Kohna, Tri-Chandra Campus, Ghantaghar, Kathmandu, Nepal, United States Received 7 April 2004; received (MCT) and affiliated faults in central Nepal. Inferred rates were 1.5F0.9 cm/yr (Langtang Thrust, ~19

  17. Low cost multi-channel GPS receiver

    E-Print Network [OSTI]

    Painter, John H.; Tachita, R.; Ikeda, K.; Teranishi, A.; Noe, P.S.

    1988-11-29T23:59:59.000Z

    An investigation was conducted on compact, multichannel GPS (global positioning system) receivers. The code generator and correlation equipment were simplified, attempting to avoid downgrading the properties possessed by multichannel receivers...

  18. Pantex receives National Weather Service recognition | National...

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

    receives National Weather Service recognition | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing...

  19. A New Argus Direct Conversion Receiver and Digital Array Receiver/Processor

    E-Print Network [OSTI]

    Ellingson, Steven W.

    A New Argus Direct Conversion Receiver and Digital Array Receiver/Processor Grant Hampson and Steve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 References 20 Appendix A: Direct Conversion FPGA Source Code 21 Appendix B: Digital Receiver system. The new architecture consists of four main components: a Direct Conversion Receiver (DCR

  20. Digitally Assisted Multi-Channel Receivers

    E-Print Network [OSTI]

    Pentakota, Krishna Anand Santosh Spikanth

    2011-10-21T23:59:59.000Z

    -channel charge sampling receivers with sinc filter banks together with a complete system calibration and synchronization algorithm for the receiver. A unified model has been defined for the receiver containing all first order mismatches, offsets... and imperfections and a technique based on least mean squares algorithm is employed to track these errors. The performance of this technique under noisy channel conditions has been verified. The sinc filter bank is compared with the conventional analog filter...

  1. High-Flux Microchannel Solar Receiver

    Broader source: Energy.gov [DOE]

    This fact sheet describes a high-flux, microchannel solar receiver project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The team, led by Oregon State University, is working to demonstrate a microchannel-based solar receiver capable of absorbing high solar flux, while using a variety of liquid and gaseous working fluids. High-flux microchannel receivers have the potential to dramatically reduce the size and cost of a solar receiver by minimizing re-radiation and convective losses.

  2. Argonne receives 2014 Illinois Governor's Sustainability Award...

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

    receives 2014 Illinois Governor's Sustainability Award By Else Tennessen * November 10, 2014 Tweet EmailPrint On Oct. 23, Argonne National Laboratory was presented with the...

  3. Particle Receiver Integrated with Fludized Bed

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

    of solar collection from the solar field to the receiver, energy conversion systems, and thermal energy storage. Concentrating Solar Power NATIONAL RENEWABLE ENERGY LABORATORY...

  4. Sandia Energy - Sandia Workers Received Entrepreneurial Spirit...

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

    Received Entrepreneurial Spirit Awards Jim Pacheco built a reputation in concentrating solar power and was recruited by several companies when the technology took off in the...

  5. Receiver designs for multiuser underwater acoustic communications

    E-Print Network [OSTI]

    Cho, Steve E.

    2012-01-01T23:59:59.000Z

    compensate for the Doppler effect. The receiver discussed in? p = ? p /? p . The Doppler effect compresses or dilateschar- acterizes the Doppler effect in narrowband systems (W

  6. High-Temperature Falling-Particle Receiver

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

    | April 15, 2013 | Ho * This project employs modeling, design, testing, and optimization to further develop and improve key areas of falling particle receiver technology...

  7. High-Temperature Falling-Particle Receiver

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

    | June 15, 2013 | Ho * This project employs modeling, design, testing, and optimization to further develop and improve key areas of falling particle receiver technology...

  8. Sandia National Laboratories: Solar Receiver Shroud

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

    Receiver Shroud Pratt Whitney Rocketdyne Testing On December 19, 2012, in Concentrating Solar Power, EC, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

  9. High-Temperature Falling-Particle Receiver

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

    temperatures, nitrate salt fluids become chemically unstable. In contrast, direct absorption receivers using solid particles that fall through a beam of concentrated solar...

  10. Near-Blackbody Enclosed Particle Receiver

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

    radiative principles. Innovative Receiver Design 7 2. Transform 2-D panel heat absorption to 3-D volumetric heat transfer by using arrayed absorber tubes. Aperture flux Wall...

  11. Low Wind Speed Turbine Project Phase II: The Application of Medium-Voltage Electrical Apparatus to the Class of Variable Speed Multi-Megawatt Low Wind Speed Turbines; 15 June 2004--30 April 2005

    SciTech Connect (OSTI)

    Erdman, W.; Behnke, M.

    2005-11-01T23:59:59.000Z

    Kilowatt ratings of modern wind turbines have progressed rapidly from 50 kW to 1,800 kW over the past 25 years, with 3.0- to 7.5-MW turbines expected in the next 5 years. The premise of this study is simple: The rapid growth of wind turbine power ratings and the corresponding growth in turbine electrical generation systems and associated controls are quickly making low-voltage (LV) electrical design approaches cost-ineffective. This report provides design detail and compares the cost of energy (COE) between commercial LV-class wind power machines and emerging medium-voltage (MV)-class multi-megawatt wind technology. The key finding is that a 2.5% reduction in the COE can be achieved by moving from LV to MV systems. This is a conservative estimate, with a 3% to 3.5% reduction believed to be attainable once purchase orders to support a 250-turbine/year production level are placed. This evaluation considers capital costs as well as installation, maintenance, and training requirements for wind turbine maintenance personnel. Subsystems investigated include the generator, pendant cables, variable-speed converter, and padmount transformer with switchgear. Both current-source and voltage-source converter/inverter MV topologies are compared against their low-voltage, voltage-source counterparts at the 3.0-, 5.0-, and 7.5-MW levels.

  12. Liquid cooled fiber thermal radiation receiver

    DOE Patents [OSTI]

    Butler, B.L.

    1985-03-29T23:59:59.000Z

    A radiation-to-thermal receiver apparatus for collecting radiation and converting it to thermal energy is disclosed. The invention includes a fibrous mat material which captures radiation striking the receiver. Captured radiation is removed from the fibrous mat material by a transparent fluid within which the material is bathed.

  13. Los Alamos National Laboratory employees receive Pollution Prevention...

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

    Employees Receive Pollution Prevention Awards Los Alamos National Laboratory employees receive Pollution Prevention Awards Nearly 400 employees on 47 teams received Pollution...

  14. Global Positioning System receiver evaluation results

    SciTech Connect (OSTI)

    Byrne, R.H.

    1993-09-01T23:59:59.000Z

    A Sandia project currently uses an outdated Magnavox 6400 Global Positioning System (GPS) receiver as the core of its navigation system. The goal of this study was to analyze the performance of the current GPS receiver compared to newer, less expensive models and to make recommendations on how to improve the performance of the overall navigation system. This paper discusses the test methodology used to experimentally analyze the performance of different GPS receivers, the test results, and recommendations on how an upgrade should proceed. Appendices contain detailed information regarding the raw data, test hardware, and test software.

  15. Collector/Receiver Characterization (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-08-01T23:59:59.000Z

    Fact sheet describing NREL CSP Program capabilities for collector/receiver characterization: determining optical efficiency, measuring heat loss, developing and testing concentrators, concentrating the sun's power, and optically characterizing CSP plants.

  16. One Video Stream to Serve Diverse Receivers

    E-Print Network [OSTI]

    Woo, Grace

    2008-10-18T23:59:59.000Z

    The fundamental problem of wireless video multicast is to scalably serve multiple receivers which may have very different channel characteristics. Ideally, one would like to broadcast a single stream that allows each ...

  17. Preliminary design of the Carrisa Plains solar central receiver power plant. Volume II. Plant specifications

    SciTech Connect (OSTI)

    Price, R. E.

    1983-12-31T23:59:59.000Z

    The specifications and design criteria for all plant systems and subsystems used in developing the preliminary design of Carrisa Plains 30-MWe Solar Plant are contained in this volume. The specifications have been organized according to plant systems and levels. The levels are arranged in tiers. Starting at the top tier and proceeding down, the specification levels are the plant, system, subsystem, components, and fabrication. A tab number, listed in the index, has been assigned each document to facilitate document location.

  18. Software/firmware design specification for 10-MWe solar-thermal central-receiver pilot plant

    SciTech Connect (OSTI)

    Ladewig, T.D.

    1981-03-01T23:59:59.000Z

    The software and firmware employed for the operation of the Barstow Solar Pilot Plant are completely described. The systems allow operator control of up to 2048 heliostats, and include the capability of operator-commanded control, graphic displays, status displays, alarm generation, system redundancy, and interfaces to the Operational Control System, the Data Acquisition System, and the Beam Characterization System. The requirements are decomposed into eleven software modules for execution in the Heliostat Array Controller computer, one firmware module for execution in the Heliostat Field Controller microprocessor, and one firmware module for execution in the Heliostat Controller microprocessor. The design of the modules to satisfy requirements, the interfaces between the computers, the software system structure, and the computers in which the software and firmware will execute are detailed. The testing sequence for validation of the software/firmware is described. (LEW)

  19. Liquid cooled, linear focus solar cell receiver

    DOE Patents [OSTI]

    Kirpich, Aaron S. (Broomall, PA)

    1985-01-01T23:59:59.000Z

    Separate structures for electrical insulation and thermal conduction are established within a liquid cooled, linear focus solar cell receiver for use with parabolic or Fresnel optical concentrators. The receiver includes a V-shaped aluminum extrusion having a pair of outer faces each formed with a channel receiving a string of solar cells in thermal contact with the extrusion. Each cell string is attached to a continuous glass cover secured within the channel with spring clips to isolate the string from the external environment. Repair or replacement of solar cells is effected simply by detaching the spring clips to remove the cover/cell assembly without interrupting circulation of coolant fluid through the receiver. The lower surface of the channel in thermal contact with the cells of the string is anodized to establish a suitable standoff voltage capability between the cells and the extrusion. Primary electrical insulation is provided by a dielectric tape disposed between the coolant tube and extrusion. Adjacent solar cells are soldered to interconnect members designed to accommodate thermal expansion and mismatches. The coolant tube is clamped into the extrusion channel with a releasably attachable clamping strip to facilitate easy removal of the receiver from the coolant circuit.

  20. Liquid cooled, linear focus solar cell receiver

    DOE Patents [OSTI]

    Kirpich, A.S.

    1983-12-08T23:59:59.000Z

    Separate structures for electrical insulation and thermal conduction are established within a liquid cooled, linear focus solar cell receiver for use with parabolic or Fresnel optical concentrators. The receiver includes a V-shaped aluminum extrusion having a pair of outer faces each formed with a channel receiving a string of solar cells in thermal contact with the extrusion. Each cell string is attached to a continuous glass cover secured within the channel with spring clips to isolate the string from the external environment. Repair or replacement of solar cells is effected simply by detaching the spring clips to remove the cover/cell assembly without interrupting circulation of coolant fluid through the receiver. The lower surface of the channel in thermal contact with the cells of the string is anodized to establish a suitable standoff voltage capability between the cells and the extrusion. Primary electrical insulation is provided by a dielectric tape disposed between the coolant tube and extrusion. Adjacent solar cells are soldered to interconnect members designed to accommodate thermal expansion and mismatches. The coolant tube is clamped into the extrusion channel with a releasably attachable clamping strip to facilitate easy removal of the receiver from the coolant circuit.

  1. Dish/stirling hybrid-receiver

    DOE Patents [OSTI]

    Mehos, Mark S. (Boulder, CO); Anselmo, Kenneth M. (Arvada, CO); Moreno, James B. (Albuquerque, NM); Andraka, Charles E. (Albuquerque, NM); Rawlinson, K. Scott (Albuquerque, NM); Corey, John (Melrose, NY); Bohn, Mark S. (Golden, CO)

    2002-01-01T23:59:59.000Z

    A hybrid high-temperature solar receiver is provided which comprises a solar heat-pipe-receiver including a front dome having a solar absorber surface for receiving concentrated solar energy, a heat pipe wick, a rear dome, a sidewall joining the front and the rear dome, and a vapor and a return liquid tube connecting to an engine, and a fossil fuel fired combustion system in radial integration with the sidewall for simultaneous operation with the solar heat pipe receiver, the combustion system comprising an air and fuel pre-mixer, an outer cooling jacket for tangentially introducing and cooling the mixture, a recuperator for preheating the mixture, a burner plenum having an inner and an outer wall, a porous cylindrical metal matrix burner firing radially inward facing a sodium vapor sink, the mixture ignited downstream of the matrix forming combustion products, an exhaust plenum, a fossil-fuel heat-input surface having an outer surface covered with a pin-fin array, the combustion products flowing through the array to give up additional heat to the receiver, and an inner surface covered with an extension of the heat-pipe wick, a pin-fin shroud sealed to the burner and exhaust plenums, an end seal, a flue-gas diversion tube and a flue-gas valve for use at off-design conditions to limit the temperature of the pre-heated air and fuel mixture, preventing pre-ignition.

  2. Low cost multi-channel GPS receiver 

    E-Print Network [OSTI]

    Painter, John H.; Tachita, R.; Ikeda, K.; Teranishi, A.; Noe, P.S.

    1988-11-29T23:59:59.000Z

    and receiver. 455 CH2675-7/88/0000-0455 $1.00 0 1988 IEEE Authorized licensed use limited to: Texas A M University. Downloaded on February 18,2010 at 16:25:37 EST from IEEE Xplore. Restrictions apply. In the section entitled Receiver Configuration...:25:37 EST from IEEE Xplore. Restrictions apply. NCO - For the carrier regeneration of the satellite signals, an NCO is used. The NCO, similar to the code generator, inputs a clock pulse of a constant frequency to control the phase of the regenerated...

  3. Implementation aspects of nonsynchronized binary receivers

    E-Print Network [OSTI]

    Wills, Wesley Mark

    1990-01-01T23:59:59.000Z

    , the signal is assumed to be transmitted across an additive white Gaussian noise (AWGN) channel. A. Likelihood Functions Assume that the modulation sequence x = (zi: z~ = kl, j = 1, 2, . . . , 1V) is trans- mitted over the AWGN channel as NRZ pulses, p... ~ ~ ~ S tart of Observations Fig. 2. Timing Error of Unsynchronized Receiver. zj+2 Prj 2 &Vs VAA[rtj I x, r] = ?, i = 1, 2, (2. 6) where r is the normalized timing error, r'/T. Finally, the density of the received vector r = frtt&rrt??N&rrtv) conditioned...

  4. BioMed Central Page 1 of 14

    E-Print Network [OSTI]

    BioMed Central Page 1 of 14 (page number not for citation purposes) BMC Medical Genomics Open December 2008 BMC Medical Genomics 2008, 1:63 doi:10.1186/1755-8794-1-63 Received: 29 September 2008 is properly cited. #12;BMC Medical Genomics 2008, 1:63 http://www.biomedcentral.com/1755-8794/1/63 Page 2

  5. BioMed Central Page 1 of 7

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    BioMed Central Page 1 of 7 (page number not for citation purposes) Substance Abuse Treatment that staff need to maintain a constant level of care throughout the treatment process. Published: 01 February 2006 Substance Abuse Treatment, Prevention, and Policy 2006, 1:5 doi:10.1186/1747-597X-1- 5 Received

  6. Proceedings of the Flat-Plate Solar Array Project Research Forum on the design of flat-plate photovoltaic arrays for central stations

    SciTech Connect (OSTI)

    None

    1983-01-01T23:59:59.000Z

    The Flat-Plate Solar Array Project, managed by the Jet Propulsion Laboratory for the US Department of Energy, has focused on advancing technologies relevant to the design and construction of megawatt-level central-station systems. Photovoltaic modules and arrays for flat-plate central-station or other large-scale electric power production facilities require the establishment of a technical base that resolves design issues and results in practical and cost-effective configurations. The Central Station Research Forum addressed design, qualification and maintenance issues related to central-station arrays derived from the engineering and operating experiences of early applications and parallel laboratory research activities. Technical issues were examined from the viewpoint of the utility engineer, architect-engineer and laboratory researcher. The forum included presentations on optimum source-circuit designs, module insulation design for high system voltages, array safety, structural interface design, measurements and array operation and maintenance. The Research Forum focused on current capabilities as well as design difficulties requiring additional technological thrusts and/or continued research emphasis. Session topic summaries highlighting major points during group discussions, identifying promising technical approaches or areas of future research, are presented.

  7. Measuring overall emittance of concentrator receiver pipes

    SciTech Connect (OSTI)

    Gerich, J.W.; Reitter, T.A.; Merriam, M.F.

    1980-03-01T23:59:59.000Z

    A simple and accurate method for measuring the overall emittance of receiver pipes used with cylindrical concentrators is described. Experimental measurements obtained for steel pipes with a black chrome over nickel selective surface are presented. The observed strong temperature dependence of emittance indicates that the use of room temperature emittance data will substantially overestimate collector efficiency. (SPH)

  8. Patent Issued Additional Office Actions Received

    E-Print Network [OSTI]

    Cui, Yan

    Patent Issued Additional Office Actions Received 3-12 mo. Respond to Office Action Patent attorney The patent examiner provides notification of which claims in the application have been rejected or accepted determines there are multiple inventions in 1 application. Patent Application Published 6 mo. Non

  9. Congratulations to for receiving a 2011

    E-Print Network [OSTI]

    Nehorai, Arye

    Congratulations to Lan Yang for receiving a 2011 Presidential Early Career Award for Scientists, mo permit no. 2501 About the School of Engineering & Applied Science » Improving quality of life-of-the-art engineering facilities >> engineering.wustl.edu Lan Yang, PhD recipient of the 2011 Presidential Early Career

  10. Chasing megawatts in combined cycle plants

    SciTech Connect (OSTI)

    Koch, J. [Power Plant Performance Specialist, Lansdowne, PA (United States); DeGeeter, S. [Ocean State Power, Harrisville, RI (United States); Haynes, C.J. [New England Power Co., Somerset, MA (United States)

    1996-05-01T23:59:59.000Z

    Combined cycle owners do not have to accept that combined cycle performance must degrade over time. Through low cost testing using existing instrumentation, a method is presented to identify causes for lost generation. A 500 MW combined cycle plant, with two STAG 207EA units, had lost 17 MW since initial operation, and found that: Gas side fouling on A four HRSG`s accounted for 8 MW of the total loss LP steam turbine efficiency was below design on one unit, contributing 3 MW Condenser air removal was poor on both units, a loss of an additional 2 MW Compressor and turbine section efficiency losses on 2 of 4 GT`s cost over 4 MW The test also revealed that the other two GT`s, both cooling towers, and one of the two steam turbines, were performing at or near design. Thus far 3 MW has been recovered, with planning underway for recovery of another 3 MW. The remaining 11 MW, though not immediately recoverable, will be the focus of planning for the next major outage. This simple method can be used at any combined cycle using existing instrumentation, with minimal intrusion on daily operations. The use of redundant measurements and uncertainty analysis assures valid and useful results.

  11. Megawatt targets for Neutrino Super-Beams

    E-Print Network [OSTI]

    McDonald, Kirk

    Station for 4 MW 27m Iron shield Iron structure /Helium vessel Machine room Service pit Storage transformers) must be underground, close to the beamline ­ The pump house may also be underground, depending ) to interact most protons Dense enough that 2 int fits in focusing system depth-of-field Radius: Rtarget = 2

  12. Energy Production Demonstrator for Megawatt Proton Beams

    E-Print Network [OSTI]

    Pronskikh, Vitaly S; Novitski, Igor; Tyutyunnikov, Sergey I

    2014-01-01T23:59:59.000Z

    A preliminary study of the Energy Production Demonstrator (EPD) concept - a solid heavy metal target irradiated by GeV-range intense proton beams and producing more energy than consuming - is carried out. Neutron production, fission, energy deposition, energy gain, testing volume and helium production are simulated with the MARS15 code for tungsten, thorium, and natural uranium targets in the proton energy range 0.5 to 120 GeV. This study shows that the proton energy range of 2 to 4 GeV is optimal for both a natU EPD and the tungsten-based testing station that would be the most suitable for proton accelerator facilities. Conservative estimates, not including breeding and fission of plutonium, based on the simulations suggest that the proton beam current of 1 mA will be sufficient to produce 1 GW of thermal output power with the natU EPD while supplying < 8% of that power to operate the accelerator. The thermal analysis shows that the concept considered has a problem due to a possible core meltdown; however...

  13. Energy Production Demonstrator for Megawatt Proton Beams

    E-Print Network [OSTI]

    Vitaly S. Pronskikh; Nikolai Mokhov; Igor Novitski; Sergey I. Tyutyunnikov

    2014-07-16T23:59:59.000Z

    A preliminary study of the Energy Production Demonstrator (EPD) concept - a solid heavy metal target irradiated by GeV-range intense proton beams and producing more energy than consuming - is carried out. Neutron production, fission, energy deposition, energy gain, testing volume and helium production are simulated with the MARS15 code for tungsten, thorium, and natural uranium targets in the proton energy range 0.5 to 120 GeV. This study shows that the proton energy range of 2 to 4 GeV is optimal for both a natU EPD and the tungsten-based testing station that would be the most suitable for proton accelerator facilities. Conservative estimates, not including breeding and fission of plutonium, based on the simulations suggest that the proton beam current of 1 mA will be sufficient to produce 1 GW of thermal output power with the natU EPD while supplying < 8% of that power to operate the accelerator. The thermal analysis shows that the concept considered has a problem due to a possible core meltdown; however, a number of approaches (a beam rastering, in first place) are suggested to mitigate the issue. The efficiency of the considered EPD as a Materials Test Station (MTS) is also evaluated in this study.

  14. Multi-Megawatt Power System Trade Study

    SciTech Connect (OSTI)

    Longhurst, Glen Reed; Schnitzler, Bruce Gordon; Parks, Benjamin Travis

    2001-11-01T23:59:59.000Z

    As part of a larger task, the Idaho National Engineering and Environmental Laboratory (INEEL) was tasked to perform a trade study comparing liquid-metal cooled reactors having Rankine power conversion systems with gas-cooled reactors having Brayton power conversion systems. This report summarizes the approach, the methodology, and the results of that trade study. Findings suggest that either approach has the possibility to approach the target specific mass of 3-5 kg/kWe for the power system, though it appears either will require improvements to achieve that. Higher reactor temperatures have the most potential for reducing the specific mass of gas-cooled reactors but do not necessarily have a similar effect for liquid-cooled Rankine systems. Fuels development will be the key to higher reactor operating temperatures. Higher temperature turbines will be important for Brayton systems. Both replacing lithium coolant in the primary circuit with gallium and replacing potassium with sodium in the power loop for liquid systems increase system specific mass. Changing the feed pump turbine to an electric motor in Rankine systems has little effect. Key technologies in reducing specific mass are high reactor and radiator operating temperatures, low radiator areal density, and low turbine/generator system masses. Turbine/generator mass tends to dominate overall power system mass for Rankine systems. Radiator mass was dominant for Brayton systems.

  15. Funding Opportunity: Next Generation Electric Machines: Megawatt...

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

    MV integrated drive systems that leverage the benefits of state of the art power electronics (i.e., wide band gap devices) with energy efficient, high speed, direct drive,...

  16. Adaptive control system for pulsed megawatt klystrons

    DOE Patents [OSTI]

    Bolie, Victor W. (Albuquerque, NM)

    1992-01-01T23:59:59.000Z

    The invention provides an arrangement for reducing waveform errors such as errors in phase or amplitude in output pulses produced by pulsed power output devices such as klystrons by generating an error voltage representing the extent of error still present in the trailing edge of the previous output pulse, using the error voltage to provide a stored control voltage, and applying the stored control voltage to the pulsed power output device to limit the extent of error in the leading edge of the next output pulse.

  17. megatons to megawatts | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysisDarby Dietrich57/%2A en4/%2A en Officemegatons

  18. MegaWatt Solar | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio: Energy8429°,Meeteetse, Wyoming: Energy ResourcesMegaWatt Solar

  19. Megawatt Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio: Energy8429°,Meeteetse, Wyoming: Energy

  20. Gravity anomalies, crustal structure and thermo-mechanical support of the Himalaya of Central Nepal

    E-Print Network [OSTI]

    Avouac, Jean-Philippe

    Gravity anomalies, crustal structure and thermo-mechanical support of the Himalaya of Central Nepal, Department of Mines and Geology, Lainchaur, Kathmandu, Nepal Accepted 2001 June 8. Received 2001 January 6; in original form 2000 February 4 SUMMARY We use two gravity profiles that we measured across Central Nepal

  1. Landscape disequilibrium on 100010,000 year scales Marsyandi River, Nepal, central Himalaya

    E-Print Network [OSTI]

    Heimsath, Arjun M.

    Landscape disequilibrium on 1000­10,000 year scales Marsyandi River, Nepal, central Himalaya Beth, Hanover, NH 03755, USA c Himalayan Experience, PO Box 5674, Kathmandu, Nepal Received 1 October 2002 River in the central Nepal Himalaya has oscillated between bedrock incision and valley alluviation

  2. CENTRAL PLATEAU REMEDIATION

    SciTech Connect (OSTI)

    ROMINE, L.D.

    2006-02-01T23:59:59.000Z

    A systematic approach to closure planning is being implemented at the Hanford Site's Central Plateau to help achieve the goal of closure by the year 2035. The overall objective of Central Plateau remediation is to protect human health and the environment from the significant quantity of contaminated material that resulted from decades of plutonium production in support of the nation's defense. This goal will be achieved either by removing contaminants or placing the residual contaminated materials in a secure configuration that minimizes further migration to the groundwater and reduces the potential for inadvertent intrusion into contaminated sites. The approach to Central Plateau cleanup used three key concepts--closure zones, closure elements, and closure process steps--to create an organized picture of actions required to complete remediation. These actions were merged with logic ties, constraints, and required resources to produce an integrated time-phased schedule and cost profile for Central Plateau closure. Programmatic risks associated with implementation of Central Plateau closure were identified and analyzed. Actions to mitigate the most significant risks are underway while high priority remediation projects continue to make progress.

  3. Full-wave receiver architecture for the homodyne motion sensor

    DOE Patents [OSTI]

    Haugen, Peter C; Dallum, Gregory E; Welsh, Patrick A; Romero, Carlos E

    2013-11-19T23:59:59.000Z

    A homodyne motion sensor or detector based on ultra-wideband radar utilizes the entire received waveform through implementation of a voltage boosting receiver. The receiver includes a receiver input and a receiver output. A first diode is connected to the receiver output. A first charge storage capacitor is connected from between the first diode and the receiver output to ground. A second charge storage capacitor is connected between the receiver input and the first diode. A second diode is connected from between the second charge storage capacitor and the first diode to ground. The dual diode receiver performs voltage boosting of a RF signal received at the receiver input, thereby enhancing receiver sensitivity.

  4. A NEW SOLAR THERMAL RECEIVER UTILIZING SMALL PARTICLES

    E-Print Network [OSTI]

    Hunt, Arlon J.

    2011-01-01T23:59:59.000Z

    iuision, Ext. 6782 A New Solar Thermal Receiver UtilizingI \\D \\. }J F--' A NEW SOLAR THERMAL RECEIVER UTILIZING SMALL94720 ABSTRACT A new type of solar thermal receiver is being

  5. POWER CENTRALIZED SEMIGROUPS PRIMOZ MORAVEC

    E-Print Network [OSTI]

    POWER CENTRALIZED SEMIGROUPS PRIMOZ MORAVEC Abstract. A semigroup is said to be power centralized if for every pair of elements x and y there exists a power of x commuting with y. The structure of power centralized groups and semigroups is investigated. In particular, we characterize 0-simple power centralized

  6. Experiments and analysis on the molten-salt direct-contact absorption receiver concept

    SciTech Connect (OSTI)

    Bohn, M.S.; Wang, K.Y.

    1986-11-01T23:59:59.000Z

    This paper presents results of recent experiments on the Direct Absorption Receiver (DAR) concept using molten salt as the working fluid. The DAR concept may result in a solar central receiver that costs 50% less than the current tube receiver and has significantly lower operational and maintenance costs. These experiments were aimed at determining whether the DAR concept is technically feasible and were carried out at the Advanced Components Test Facility, Atlanta, GA. Results are based on several days of operating with solar flux ranging up to 50 W/cm/sup 2/ and also on a numerical model that is capable of predicting the thermal performance of the DAR salt film. Issues relating to thermal efficiency, absorber-to-salt heat transfer, and salt film stability are addressed.

  7. Signal processor for processing ultrasonic receiver signals

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV)

    1980-01-01T23:59:59.000Z

    A signal processor is provided which uses an analog integrating circuit in conjunction with a set of digital counters controlled by a precision clock for sampling timing to provide an improved presentation of an ultrasonic transmitter/receiver signal. The signal is sampled relative to the transmitter trigger signal timing at precise times, the selected number of samples are integrated and the integrated samples are transferred and held for recording on a strip chart recorder or converted to digital form for storage. By integrating multiple samples taken at precisely the same time with respect to the trigger for the ultrasonic transmitter, random noise, which is contained in the ultrasonic receiver signal, is reduced relative to the desired useful signal.

  8. Seventy-three New Mexico students receive Los Alamos Employees...

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

    Seventy-three students receive LAESF scholarships Seventy-three New Mexico students receive Los Alamos Employees' Scholarship Fund scholarships Raymond Fasano of Bernalillo High...

  9. Secretary Chu Announces 150 Students to Receive Graduate Fellowships...

    Energy Savers [EERE]

    150 Students to Receive Graduate Fellowships in Science, Mathematics and Engineering Secretary Chu Announces 150 Students to Receive Graduate Fellowships in Science, Mathematics...

  10. MAY 14, 2008 Chemistry and environmental science professor receives Carroll

    E-Print Network [OSTI]

    Reid, Scott A.

    MAY 14, 2008 Chemistry and environmental science professor receives Carroll College faculty award WAUKESHA, WIS.-- An associate professor of chemistry and environmental science has received an annual

  11. Los Alamos National Laboratory employees receive Pollution Prevention...

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

    Pollution Prevention Awardees Los Alamos National Laboratory employees receive Pollution Prevention Awards Nearly 400 employees on 47 teams received Pollution Prevention awards for...

  12. Sandia National Laboratories: Sandia Receives Award for Electronics...

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

    Sandia Receives Award for Electronics Stewardship September 19, 2011 electronics stewardship award ALBUQUERQUE, N.M. - Sandia National Laboratories has received an award for...

  13. Highly linear SAW-less receiver design techniques for CDMA

    E-Print Network [OSTI]

    Kim, Nam Soo

    2010-01-01T23:59:59.000Z

    Pyo, “A low power RF direct-conversion receiver/transmitterconsiderations for direct-conversion receivers,” IEEE Trans.2009. [50] A. Abidi, “Direct-conversion radio transceivers

  14. An RF Receiver Architecture for Intra-Band Carrier Aggregation

    E-Print Network [OSTI]

    Hwu, Sy-Chyuan

    2013-01-01T23:59:59.000Z

    Noise for Low-Power Direct-Conversion Receivers,” IEEE J.system-on-chip design. Direct?Conversion Receiver LPF ADC

  15. Project Profile: High-Efficiency Receivers for Supercritical...

    Energy Savers [EERE]

    Efficiency Receivers for Supercritical Carbon Dioxide Cycles Project Profile: High-Efficiency Receivers for Supercritical Carbon Dioxide Cycles Brayton logo Brayton Energy, under...

  16. Y-12 employees receive awards recognizing excellence in nuclear...

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

    receive ... Y-12 employees receive awards recognizing excellence in nuclear weapons program Posted: October 6, 2014 - 9:09am Defense Programs 2013 Award of Excellence recipient...

  17. Video Resources Central Asia

    E-Print Network [OSTI]

    Qian, Ning

    ://archive.org/details/central-asia · Kyrgyzstan: Crisis in Kyrgyzstan: Fuel, Contracts, and Revolution along the Afghan Supply Chain http://www.c-span.org/video/?24094-1/crisis-kyrgyzstan-fuel-contracts-revolution-along- afghan-supply-chain 2:58 Alex Cooley · Cotton

  18. DELIVERABLE Central North Sea

    E-Print Network [OSTI]

    Haszeldine, Stuart

    International Energy Agency Energy Technology Perspectives 2012 #12;4 Central North Sea ­ CO2 Storage Hub within the UK and EU. CCS development zones can also attract new energy intensive industries to locate of intermittency which is inevitable with wind power, thereby helping to address the need for energy security

  19. CUNY EXPORT CONTROL PROCEDURES 17. Shipping/Receiving

    E-Print Network [OSTI]

    Rosen, Jay

    CUNY EXPORT CONTROL PROCEDURES 17. Shipping/Receiving This Section addresses the process for shipping and receiving tangible items under export license/authorization, transmission of export data. General Shipping and Receiving CUNY requires that Campus Shipping/Receiving personnel evaluate, for export

  20. Advanced motor driven clamped borehole seismic receiver

    DOE Patents [OSTI]

    Engler, B.P.; Sleefe, G.E.; Striker, R.P.

    1993-02-23T23:59:59.000Z

    A borehole seismic tool is described including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric motor in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

  1. Advanced motor driven clamped borehole seismic receiver

    DOE Patents [OSTI]

    Engler, Bruce P. (Sandoval County, NM); Sleefe, Gerard E. (Bernalillo County, NM); Striker, Richard P. (Bernalillo County, NM)

    1993-01-01T23:59:59.000Z

    A borehole seismic tool including a borehole clamp which only moves perpendicular to the borehole. The clamp is driven by an electric motor, via a right angle drive. When used as a seismic receiver, the tool has a three part housing, two of which are hermetically sealed. Accelerometers or geophones are mounted in one hermetically sealed part, the electric meter in the other hermetically sealed part, and the clamp and right angle drive in the third part. Preferably the tool includes cable connectors at both ends. Optionally a shear plate can be added to the clamp to extend the range of the tool.

  2. LM Receives Sustainability Award | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report:40PM toLED Lighting5-15 LM 05-15FIMSLM Receives

  3. Tom Harper receives cyber security award

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening a solidSynthesisAppliances Tips:Harper receives cyber security

  4. WIPP receives 9,000th shipment

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsing Maps1DOE Awards Contract for19,WIPP receives 9,000th

  5. Fry receives Charles W. Briggs Award

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.Newof Energy ForrestalPrinceton Plasma Physics09,Fry receives

  6. RDC receives award for Accelerate Program

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah47,193.70COMMUNITYResponses:December 11, 2014 PageRDC Receives Award

  7. News from the Department of Public Administration at the University of Central Florida June 2006, Volume 1

    E-Print Network [OSTI]

    Wu, Shin-Tson

    , our new completely online Master of Nonprofit Management received the American Society for PublicNews from the Department of Public Administration at the University of Central Florida FOCUS June-23 Report of Gifts..................................... 23 PUBLIC ADMINISTRATION Teaching Research Community

  8. Central Multifamily Water Heating Systems

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Building America Program is hosting a no-cost, webinar-based training on Central Multifamily Water Heating Systems. The webinar will focus the effective use of central heat pump water heaters...

  9. Centralized maintenance procedures

    SciTech Connect (OSTI)

    Barber, J.R.

    1994-02-01T23:59:59.000Z

    In 1989, shortly after Westinghouse Hanford Company (WHC) assumed maintenance responsibilities for the Hanford site, a Department of Energy (DOE) maintenance audit found that field (working level) maintenance procedures and procedure practices of the facilities scattered across Hanford`s 560 square miles varied as greatly as the locations of those facilities. In some of the audited facilities there were few or no procedures; in others, procedures conflicted with or were redundant to procedures at other facilities. This document presents current efforts to centralize maintenance procedures.

  10. Centralized Procurement Program

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWPSuccessAlamos Laboratory NastasiPASTCentral AirCentral

  11. ARM - SGP Central Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP :ProductsVaisala CL51InstrumentsCentral Facility SGP Related Links

  12. Charles "Chuck" Farrar to receive DeMichele Award

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

    Farrar to receive DeMichele Award Charles "Chuck" Farrar to receive DeMichele Award The award is presented for demonstrated "exemplary service and support of promoting the science...

  13. High-Efficiency Receivers for Supercritical Carbon Dioxide Cycles...

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

    Receivers for Supercritical Carbon Dioxide Cycles - FY12 Q4 High-Efficiency Receivers for Supercritical Carbon Dioxide Cycles - FY12 Q4 This document summarizes the progress of...

  14. STEAM RECEIVER MODELS FOR SOLAR DISH CONCENTRATORS: TWO MODELS COMPARED

    E-Print Network [OSTI]

    response of a parabolic dish steam cavity receiver. Both approaches are based on a heat transfer model

  15. NEJC Board Member Receives 2015 National Planning Excellence Award

    Broader source: Energy.gov [DOE]

    National Environmental Justice Conference, Inc. Board of Directors Member Receives American Planning Association 2015 National Planning Excellence Award

  16. Estimation of Convection Loss from Paraboloidal Dish Cavity Receivers

    E-Print Network [OSTI]

    In general, cavity receivers employed in the sun-tracking paraboloidal dish concentrator are subjected the numerical investigation of natural and combined convection loss from cavity receivers employed in solar is a significant source of energy loss from thermal receivers used with dish solar concentrators. This paper

  17. Central Characterization Program (CCP) Reconciliation of Data...

    Energy Savers [EERE]

    Central Characterization Program (CCP) Reconciliation of Data Quality Objectives (DQOs) and Reporting Characterization Data Central Characterization Program (CCP) Reconciliation of...

  18. Radiant energy receiver having improved coolant flow control means

    DOE Patents [OSTI]

    Hinterberger, H.

    1980-10-29T23:59:59.000Z

    An improved coolant flow control for use in radiant energy receivers of the type having parallel flow paths is disclosed. A coolant performs as a temperature dependent valve means, increasing flow in the warmer flow paths of the receiver, and impeding flow in the cooler paths of the receiver. The coolant has a negative temperature coefficient of viscosity which is high enough such that only an insignificant flow through the receiver is experienced at the minimum operating temperature of the receiver, and such that a maximum flow is experienced at the maximum operating temperature of the receiver. The valving is accomplished by changes in viscosity of the coolant in response to the coolant being heated and cooled. No remotely operated valves, comparators or the like are needed.

  19. Radio frequency circuits for wireless receiver front-ends

    E-Print Network [OSTI]

    Xin, Chunyu

    2005-11-01T23:59:59.000Z

    . . . . . . . . 69 2. Implementation of the Down-Conversion Mixer . . . . 69 3. Layout Considerations and Simulation Results . . . . 74 4. Experimental Results of the Mixer Within the Receiver 77 IV BLUETOOTH/WI-FI DUAL-STANDARD RECEIVER RF FRONT...-END : : : : : : : : : : : : : : : : : : : : : : : : : : : : 80 A. Direct Conversion Bluetooth/Wi-Fi Dual-Standard Receiver 81 B. RF Front-End Design Considerations . . . . . . . . . . . . 83 C. Circuits Implementations . . . . . . . . . . . . . . . . . . . 86 1. LNA Implementation...

  20. ORISE: ORAU receives DOE Small Business Award for work under...

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

    ORAU receives DOE Small Business Award for work under ORISE contract Pictured above (L-R) are Heidi Timmerman, director of Procurement and Contracts Administration; Rebecca Crowe,...

  1. DOE's Jefferson Lab Receives Approval To Start Construction of...

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

    DOE's Jefferson Lab Receives Approval To Start Construction of 310 Million Upgrade NEWPORT NEWS, Va., Sept. 15, 2008 - The U.S. Department of Energy's Thomas Jefferson National...

  2. "BEST training, related to science, that I have ever received"

    E-Print Network [OSTI]

    Minnesota, University of

    "BEST training, related to science, that I have ever received" - Quote from a Dragonfly Workshop digital nature photography to state education standards ­ A technology training certificate to submit

  3. Two Los Alamos National Laboratory organizations receive Performance...

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

    Laboratory organizations receive Performance Excellence recognition from Quality New Mexico Nuclear Material Control and Accountability Group and the Quality and Performance...

  4. Seventy-three New Mexico students receive Los Alamos Employees...

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

    Employees' Scholarship Fund (LAESF). Fasano is one of 73 students from seven Northern New Mexico counties receiving LAESF scholarships, which are funded through pledges from Los...

  5. High-Efficiency Receivers for Supercritical Carbon Dioxide Cycles

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

    application to demonstrate the full receiver system performance * Absorber architecture defined capable of (a) withstanding cycle pressures and (b) maintaining acceptable...

  6. A HIGH TEMPERATURE GAS RECEIVER UTILIZING SMALL PARTICLES

    E-Print Network [OSTI]

    Hunt, Arlon

    2012-01-01T23:59:59.000Z

    organized by the Solar Thermal Test Facilities UsersMexico, Organized by the Solar Thermal Test Facilities Usersdevelop a new type of solar thermal receiver that utilizes a

  7. Sandia Energy - JBEI Research Receives Strong Industry Interest...

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

    Research Receives Strong Industry Interest in DOE Technology Transfer Call Home Renewable Energy Energy Biofuels Facilities Partnership JBEI News News & Events Research &...

  8. Y-12 Steam Plant Project Received National Recognition for Project...

    National Nuclear Security Administration (NNSA)

    Steam Plant Project Received National Recognition for Project Management Excellence | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission...

  9. allograft recipients receiving: Topics by E-print Network

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

    HOW YOUR FINANCIAL NEED WAS DETERMINED The Financial Aid Notice Students receiving University funding will have a financial aid notice Budget Your basic cost of attendance...

  10. absorption solar receiver: Topics by E-print Network

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

    which exhibit a broadband absorption enhancement over 2 An Air-Based Cavity-Receiver for Solar Trough Concentrators Roman Bader Renewable Energy Websites Summary: for a heat...

  11. Drell receives National Medal of Science | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Drell receives National Medal of Science | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing...

  12. Optimization of Multiple Receivers Solar Power Tower systems

    E-Print Network [OSTI]

    Emilio Carrizosa

    2015-03-26T23:59:59.000Z

    Mar 26, 2015 ... Abstract: In this article a new procedure to optimize the design of a Multiple Receivers Solar Power Tower system is presented. The proposed ...

  13. NNSA project receives DOE Secretary's Award for Project Management...

    National Nuclear Security Administration (NNSA)

    project receives DOE Secretary's Award for Project Management Improvement | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the...

  14. Curran receives SAE Foundation industry leadership award | ornl...

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

    at the Department of Energy's Oak Ridge National Laboratory, has received the Society for Automotive Engineers (SAE) Foundation's 2015 Stefan Pischinger Young Industry Leadership...

  15. Analysis and design of CMOS ultra wideband receivers

    E-Print Network [OSTI]

    Ranjan, Mahim

    2006-01-01T23:59:59.000Z

    C. Direct Conversion Receiver . . . . . . . . . . D.second-order distortion issues in direct conversion MB- OFDMapproximation. III.1 III.2 III.3 A typical direct conversion

  16. SoftCast: One Video to Serve All Wireless Receivers

    E-Print Network [OSTI]

    Katabi, Dina

    2009-02-07T23:59:59.000Z

    The main challenge in wireless video multicast is to scalably serve multiple receivers who have different channel characteristics. Current wireless transmission schemes, however, cannot support smooth degradation. Specifically, ...

  17. Waste receiving and processing facility module 1 auditable safetyanalysis

    SciTech Connect (OSTI)

    Bottenus, R.J.

    1997-02-01T23:59:59.000Z

    The Waste Receiving and Processing Facility Module 1 Auditable Safety Analysis analyzes postulated accidents and determines controls to prevent the accidents or mitigate the consequences.

  18. Advanced Low-Cost Receivers for Parabolic Troughs

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

    receivers. Some of these drawbacks include expensive and technologically intensive absorption coatings, a 1%-5% annual failure rate for tubes due to vacuum degradation, and...

  19. Department of Energy Receives 2013 Partners in Conservation Award...

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

    The Department of Energy (DOE), along with its partners the Bureau of Ocean Energy Management (BOEM) and the National Oceanic and Atmospheric Administration (NOAA), received the...

  20. Centralized digital control of accelerators

    SciTech Connect (OSTI)

    Melen, R.E.

    1983-09-01T23:59:59.000Z

    In contrasting the title of this paper with a second paper to be presented at this conference entitled Distributed Digital Control of Accelerators, a potential reader might be led to believe that this paper will focus on systems whose computing intelligence is centered in one or more computers in a centralized location. Instead, this paper will describe the architectural evolution of SLAC's computer based accelerator control systems with respect to the distribution of their intelligence. However, the use of the word centralized in the title is appropriate because these systems are based on the use of centralized large and computationally powerful processors that are typically supported by networks of smaller distributed processors.

  1. Qualification test for the flexible receiver. Revision 2

    SciTech Connect (OSTI)

    Tedeschi, D.J.

    1994-12-12T23:59:59.000Z

    This document provides the test plan and procedures to certify and design verify the 42{double_prime} and 4{double_prime}-6{double_prime} Flexible Receiver as a safety class 3 system. The Flexible Receiver will be used by projects W-151 and W-320 for removing equipment from tanks C-106 and AZ-101.

  2. A New Compact Multichannel Receiver for Underwater Wireless Communication Networks

    E-Print Network [OSTI]

    Abdi, Ali

    size of the proposed receiver makes it particularly useful for small unmanned underwater vehicles1 A New Compact Multichannel Receiver for Underwater Wireless Communication Networks Ali Abdi of the particle velocity, in addition to the pressure, multichannel reception can be accomplished in underwater

  3. Ultra-Low Power Time Synchronization Using Passive Radio Receivers

    E-Print Network [OSTI]

    Amir, Yair

    Ultra-Low Power Time Synchronization Using Passive Radio Receivers Yin Chen Qiang Wang Marcus Chang. In this pa- per, we present an inexpensive and ultra-low power ( of elapsed seconds. The universal time sig- nal receiver combines an off-the-shelf radio chip with an ultra-low

  4. Remote Control and Receiver-Transceiver Specifications and

    E-Print Network [OSTI]

    Rajamani, Sriram K.

    Remote Control and Receiver- Transceiver Specifications and Requirements for Windows Media Center hardware vendors (IHVs) and PC OEM partners who want to create remote control and receiver device combinations that decode input from the remote control for Windows Media Center. This document provides details

  5. Interference mitigation techniques for SAW-less CDMA receivers

    E-Print Network [OSTI]

    Khatri, Himanshu

    2009-01-01T23:59:59.000Z

    RF front-end IC for a direct-conversion wireless receiver,”noise for low- power direct-conversion receiver,” IEEE J.A 72-mW CMOS 802.11a direct conversion front-end with 3.5-dB

  6. Artificial Intersymbol Interference (ISI) to Exploit Receiver Imperfections for Secrecy

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Artificial Intersymbol Interference (ISI) to Exploit Receiver Imperfections for Secrecy Azadeh intentional intersymbol inter- ference (ISI). The legitimate receiver uses the key to cancel the ISI while the eavesdropper, since it does not have the key, cannot do such. It is shown that although ISI reduces

  7. Freestall Facilities in Central Texas

    E-Print Network [OSTI]

    Stokes, Sandra R.; Gamroth, Mike

    1999-06-04T23:59:59.000Z

    surveyed recently for infor- L-5311 5-99 Freestall Dairy Facilities in Central Texas Sandy Stokes and Mike Gamroth* *Extension Dairy Specialist, Texas A&M University System, and Extension Dairy Specialist, Oregon State University. Freestall housing...

  8. CENTRAL PLATEAU REMEDIATION OPTIMIZATION STUDY

    SciTech Connect (OSTI)

    BERGMAN, T. B.; STEFANSKI, L. D.; SEELEY, P. N.; ZINSLI, L. C.; CUSACK, L. J.

    2012-09-19T23:59:59.000Z

    THE CENTRAL PLATEAU REMEDIATION OPTIMIZATION STUDY WAS CONDUCTED TO DEVELOP AN OPTIMAL SEQUENCE OF REMEDIATION ACTIVITIES IMPLEMENTING THE CERCLA DECISION ON THE CENTRAL PLATEAU. THE STUDY DEFINES A SEQUENCE OF ACTIVITIES THAT RESULT IN AN EFFECTIVE USE OF RESOURCES FROM A STRATEGIC PERSPECTIVE WHEN CONSIDERING EQUIPMENT PROCUREMENT AND STAGING, WORKFORCE MOBILIZATION/DEMOBILIZATION, WORKFORCE LEVELING, WORKFORCE SKILL-MIX, AND OTHER REMEDIATION/DISPOSITION PROJECT EXECUTION PARAMETERS.

  9. Hybrid sodium heat pipe receivers for dish/Stirling systems

    SciTech Connect (OSTI)

    Laing, D.; Reusch, M. [Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V., Stuttgart (Germany). Inst. fuer Technische Thermodynamik

    1997-12-31T23:59:59.000Z

    The design of a hybrid solar/gas heat pipe receiver for the SBP 9 kW dish/Stirling system using a United Stirling AB V160 Stirling engine and the results of on-sun testing in alternative and parallel mode will be reported. The receiver is designed to transfer a thermal power of 35 kW. The heat pipe operates at around 800 C, working fluid is sodium. Operational options are solar-only, gas augmented and gas-only mode. Also the design of a second generation hybrid heat pipe receiver currently developed under a EU-funded project, based on the experience gained with the first hybrid receiver, will be reported. This receiver is designed for the improved SPB/L. and C.-10 kW dish/Stirling system with the reworked SOLO V161 Stirling engine.

  10. Evaluation of line focus solar central power systems. Volume II. Systems evaluation

    SciTech Connect (OSTI)

    Not Available

    1980-03-15T23:59:59.000Z

    An evaluation was completed to ascertain the applicability of line focus technologies to electrical power applications and to compare their performance and cost potential with point focus central receiver power systems. It was concluded that although the high temperature line focus (SRI) and fixed mirror line focus (GA) concepts duplicate the heat source characteristics and power conversion technology of the central receiver concepts these configurations do not offer a sufficient improvement in cost to warrant full scale development. The systems are, however, less complex than their point focus counterpart and should the central receiver system development falter they provide reasonable technology alternatives. The parabolic trough concept (BDM) was found to provide a low temperature technology alternative to the central receiver concept with promising performance and cost potential. Its continued development is recommended, with special emphasis on lower temperature (< 700/sup 0/F) applications. Finally, a variety of new promising line focus power system configurations were identified for a range of utility and industrial applications and recommendations were made on their implementation. This volume contains the detailed report. (WHK)

  11. Geometry and seismic properties of the subducting Cocos plate in central Mexico

    E-Print Network [OSTI]

    Jackson, Jennifer M.

    in central Mexico Y. Kim,1 R. W. Clayton,1 and J. M. Jackson1 Received 31 August 2009; revised 22 December occurring in the subducting plate and the overlying crust. Citation: Kim, Y., R. W. Clayton, and J. M near Acapulco and suggested a 9 km thick oceanic crust dipping 2° under the continental margin. Valdes

  12. Structural analysis of a reflux pool-boiler solar receiver

    SciTech Connect (OSTI)

    Hoffman, E.L.; Stone, C.M.

    1991-06-01T23:59:59.000Z

    Coupled thermal-structural finite element calculations of a reflux pool-boiler solar receiver were performed to characterize the operating stresses and to address issues affecting the service life of the receiver. Analyses performed using shell elements provided information for receiver material selection and design optimization. Calculations based on linear elastic fracture mechanics principles were performed using continuum elements to assess the vulnerability of a seam-weld to fatigue crack growth. All calculations were performed using ABAQUS, a general purpose finite element code, and elements specifically formulated for coupled thermal-structural analysis. Two materials were evaluated: 316L SS and Haynes 230 alloys. The receiver response was simulated for a combination of structural and thermal loads that represent the startup and operating conditions of the receiver. For both materials, maximum stresses in the receiver developed shortly after startup due to uneven temperature distribution across the receiver surface. The largest effective stress was near yield in the 316L SS receiver and below 39 percent of yield in the Haynes 230 receiver. The calculations demonstrated that stress reductions of over 25 percent could be obtained by reducing the aft dome thickness to one closer to the absorber. The fatigue calculations demonstrated that the stress distribution near the seam-weld notch depends primarily on the structural load created by internal pressurization of the receiver rather than the thermal, indicating that the thermal loads can be neglected when assessing the stress intensity near the seam-weld notch. The stress intensity factor, computed using the J-integral method and crack opening-displacement field equations, was significantly below the fatigue threshold for most steels. The calculations indicated that the weld notch was always loaded in compression, a condition which is not conducive to fatigue crack growth. 15 refs., 30 figs., 3 tabs.

  13. Design, construction, and testing of the direct absorption receiver panel research experiment

    SciTech Connect (OSTI)

    Chavez, J.M.; Rush, E.E.; Matthews, C.W.; Stomp, J.M.; Imboden, J.; Dunkin, S.

    1990-01-01T23:59:59.000Z

    A panel research experiment (PRE) was designed, built, and tested as a scaled-down model of a direct absorption receiver (DAR). The PRE is a 3-MW{sub t}DAR experiment that will allow flow testing with molten nitrate salt and provide a test bed for DAR testing with actual solar heating. In a solar central receiver system DAR, the heat absorbing fluid (a blackened molten nitrate salt) flows in a thin film down a vertical panel (rather than through tubes as in conventional receiver designs) and absorbs the concentrated solar flux directly. The ability of the flowing salt film to absorb flux directly. The ability of the flowing salt film to absorb the incident solar flux depends on the panel design, hydraulic and thermal fluid flow characteristics, and fluid blackener properties. Testing of the PRE is being conducted to demonstrate the engineering feasibility of the DAR concept. The DAR concept is being investigated because it offers numerous potential performance and economic advantages for production of electricity when compared to other solar receiver designs. The PRE utilized a 1-m wide by 6-m long absorber panel. The salt flow tests are being used to investigate component performance, panel deformations, and fluid stability. Salt flow testing has demonstrated that all the DAR components work as designed and that there are fluid stability issues that need to be addressed. Future solar testing will include steady-state and transient experiments, thermal loss measurements, responses to severe flux and temperature gradients and determination of peak flux capability, and optimized operation. In this paper, we describe the design, construction, and some preliminary flow test results of the Panel Research Experiment. 11 refs., 8 figs., 2 tabs.

  14. A universal low-noise analog receiver baseband in 65-nm CMOS

    E-Print Network [OSTI]

    Tekin, Ahmet; Elwan, Hassan; Pedrotti, Kenneth

    2010-01-01T23:59:59.000Z

    P. , et al. (2005). A direct- conversion receiver for DVB-analog design for direct conversion receiver. In Proceedingsof the wide-band direct conversion receiver including the

  15. Covered Product Category: Residential Central Air Conditioners...

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

    Central Air Conditioners Covered Product Category: Residential Central Air Conditioners The Federal Energy Management Program (FEMP) provides acquisition guidance for residential...

  16. Trends in dish-Stirling solar receiver designs

    SciTech Connect (OSTI)

    Diver, R.B.; Andraka, C.E.; Moreno, J.B.; Adkins, D.R.; Moss, T.A.

    1990-01-01T23:59:59.000Z

    The dish-Stirling solar energy system, because of its high efficiency, is a leading candidate for producing low-cost electric power from the sun. Dish-Stirling receiver design involves dealing with non-uniform and highly concentrated solar flux at high temperatures (700--800{degree}C) and, therefore, presents a variety of technical challenges. The technology is in the process of evolving from directly illuminated heater-head tube receivers'' to receivers that use refluxing (i.e., gravity assisted) liquid metals as an intermediate heat transfer fluid. Modern dish-Stirling development was initiated in the late 1970s by the Jet Propulsion Laboratory for the Department of Energy. The JPL technology development with United Stirling, Inc. involved the USAB 4.95 Stirling engine and directly illuminated heater-head tube receivers. This work eventually led to the successful demonstrations and world record efficiencies by Advanco Corp., and to the attempted commercialization of the technology by McDonnell Douglas Corp. The severe nature of concentrated solar flux and the potential advantages of heat-pipe technology have caused an evolution toward reflux'' receivers. These receivers are just beginning to be tested in the laboratory and integrated with dish-Stirling systems. In this paper, the history and current status of dish-Stirling receiver development are presented and discussed. The technical challenges to be addressed by the dish-Stirling community and the future plans at Sandia are outlined. 52 refs., 9 figs.

  17. Applications Received by DOE/FE to Export Domestically Produced...

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

    Applications Received by DOEFE to Export Domestically Produced LNG from the Lower-48 States (as of March 5, 2014) All Changes Since February 11, 2014 Update Are In Red 1 Company...

  18. Long Term Applications Received by DOE/FE to Export

    Energy Savers [EERE]

    Long Term Applications Received by DOEFE to Export Domestically Produced LNG from the Lower-48 States (as of March 3, 2015) All Changes Since February 25, 2015 Update Are In Red 1...

  19. Long Term*** Applications Received by DOE/FE to Export

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

    Long Term*** Applications Received by DOEFE to Export Domestically Produced LNG from the Lower-48 States (as of June 11, 2014) All Changes Since April 18, 2014 Update Are In Red 1...

  20. Advanced Low-Cost Receivers for Parabolic Troughs (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    Norwich Technologies is one of the 2012 SunShot CSP R&D awardees for their advanced receivers. This fact sheet explains the motivation, description, and impact of the project.

  1. High-Temperature Falling-Particle Receiver (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    Sandia National Laboratories is one of the 2012 SunShot CSP R&D awardee for their advanced receivers. This fact sheet explains the motivation, description, and impact of the project.

  2. Argonne and Dept. of Energy receive EPA's Federal Green Challenge...

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

    Argonne and Dept. of Energy receive EPA's Federal Green Challenge Award May 15, 2014 Tweet EmailPrint Argonne National Laboratory and the U.S. Department of Energy (DOE) have been...

  3. Energy-Department Supported Scientist Receives Nobel Prize for...

    Office of Environmental Management (EM)

    to receive the Nobel Prize in Physics for their invention of the blue light emitting diode, a game-changer in the history of LED lights. | Photo courtesy of Soraa. Shuji...

  4. Argonne receives 2014 DOE Sustainability Award | Argonne National...

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

    receives 2014 DOE Sustainability Award By Diana Anderson * January 5, 2015 Tweet EmailPrint Argonne National Laboratory has been recognized with the 2014 U.S. Department of Energy...

  5. High-Efficiency Receivers for Supercritical Carbon Dioxide Cycles...

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

    high-efficiency solar receiver that is compatible with s-CO2 cycles and modern thermal storage subsystems. Supercritical CO2 Brayton-cycle engines have the potential to...

  6. High performance CMOS integrated circuits for optical receivers

    E-Print Network [OSTI]

    SamadiBoroujeni, MohammadReza

    2009-05-15T23:59:59.000Z

    Prasad Enjeti Head of Department, Costas Georghiades December 2006 Major Subject: Electrical Engineering iii ABSTRACT High Performance CMOS Integrated Circuits for Optical Receivers. (December 2006) MohammadReza SamadiBoroujeni, B...

  7. apprentice receives award: Topics by E-print Network

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

    19th of March. The L'Oral- UNESCO For Women in Science Awards, established by the world Takada, Shoji 11 Prof. T. Harinarayana, Director, GERMI received the "Energy and...

  8. Receiving Water Uses, Impairments, and Sources of Stormwater Pollutants

    E-Print Network [OSTI]

    Pitt, Robert E.

    CHAPTER 2 Receiving Water Uses, Impairments, and Sources of Stormwater Pollutants "Bathing) .........................................................................26 Recreation (Non-Water Contact) Uses...................................................................................26 Biological Uses (Warm-Water Fishery, Aquatic Life Use, Biological Integrity, etc.)..........27

  9. High-Flux Microchannel Solar Receiver (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    Oregon State University is one of the 2012 SunShot CSP R&D awardees for their advanced receivers. This fact sheet explains the motivation, description, and impact of the project.

  10. RF CMOS UWB transmitter and receiver front-end design

    E-Print Network [OSTI]

    Miao, Meng

    2009-05-15T23:59:59.000Z

    The low-cost low-power complementary metal-oxide semiconductor (CMOS) ultra wideband (UWB) transmitter and receiver front-ends based on impulse technology were developed. The CMOS UWB pulse generator with frequency-band tuning capability...

  11. Long Term Applications Received by DOE/FE to Export

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

    Term Applications Received by DOEFE to Export Domestically Produced LNG from the Lower-48 States (as of April 14, 2015) All Changes Since March 26, 2015 Update Are In Red Company...

  12. Advanced Low-Cost Receivers for Parabolic Troughs

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

    Trough Receiver (NRELTP-550-45633): NREL, 2009. 2. Kutscher C, et al. Line-Focus Solar Power Plant Cost Reduction Plan: NREL Milestone Report, 2010. 3. Mahoney R. Trough...

  13. Particle Receiver Integrated with Fluidized Bed (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    National Renewable Energy Laboratory is one of the 2012 SunShot CSP R&D awardees for their advanced receivers. This fact sheet explains the motivation, description, and impact of the project.

  14. DESIGN OF A MICROCHANNEL BASED SOLAR RECEIVER/REACTOR FOR

    E-Print Network [OSTI]

    Apte, Sourabh V.

    for production of hydrogen. A cou- pled shape-constrained optimization and Monte-Carlo radiative heat transfer model is developed to design a receiver shape that can yield a desired heat flux distribution

  15. Multi-band OFDM UWB receiver with narrowband interference suppression 

    E-Print Network [OSTI]

    Kelleci, Burak

    2009-05-15T23:59:59.000Z

    A multi band orthogonal frequency division multiplexing (MB-OFDM) compatible ultra wideband (UWB) receiver with narrowband interference (NBI) suppression capability is presented. The average transmit power of UWB system ...

  16. A HIGH TEMPERATURE GAS RECEIVER UTILIZING SMALL PARTICLES

    E-Print Network [OSTI]

    Hunt, Arlon

    2012-01-01T23:59:59.000Z

    of Energy under Arlon Hunt, "A New Solar Thermal Receiversolar thermal receiver that utilizes a dispersion of very small particles sus£e2ded in a gas to absorb the radiant energy

  17. Administering truncated receive functions in a parallel messaging interface

    DOE Patents [OSTI]

    Archer, Charles J; Blocksome, Michael A; Ratterman, Joseph D; Smith, Brian E

    2014-12-09T23:59:59.000Z

    Administering truncated receive functions in a parallel messaging interface (`PMI`) of a parallel computer comprising a plurality of compute nodes coupled for data communications through the PMI and through a data communications network, including: sending, through the PMI on a source compute node, a quantity of data from the source compute node to a destination compute node; specifying, by an application on the destination compute node, a portion of the quantity of data to be received by the application on the destination compute node and a portion of the quantity of data to be discarded; receiving, by the PMI on the destination compute node, all of the quantity of data; providing, by the PMI on the destination compute node to the application on the destination compute node, only the portion of the quantity of data to be received by the application; and discarding, by the PMI on the destination compute node, the portion of the quantity of data to be discarded.

  18. Using the central VAX cluster at ANL

    SciTech Connect (OSTI)

    Caruthers, C.M.; Vote, S.L. [eds.; Lifka, D.A.; Raffenetti, R.C.

    1992-08-01T23:59:59.000Z

    This report is a manual that discusses the following topics on the Central Vax Cluster at ANL: What the Central Vax Cluster is; how the Vax Cluster works; operational policies; getting started; using tapes; printing on the Vax Cluster; developing programs in VMS; using the X window system on the Central Vax Cluster; and using Central Vax Cluster file sharing services.

  19. Atmospheric transmission model for a solar beam propagating between a heliostat and a receiver

    SciTech Connect (OSTI)

    Pitman, C.L.; Vant-Hull, L.L.

    1982-01-01T23:59:59.000Z

    Formulae are presented that provide estimates of the transmittance for a solar beam propagating between a heliostat and a central receiver. These formulae are wavelength independent, functional fits to the tabulated data of Vittitoe and Biggs, which in turn are from numerical integrations of spectral transmittance data calculated with the aid of the computer code LOWTRAN 3. The formulae allow for interpolation and extrapolation, and they have a form characteristic of atmospheric transmission models. The transmittance model contains five explicit physical variables (the site elevation H, the atmospheric water vapor density rho, the scattering coefficient ..beta.., the tower height h, and the slant range R) and three implicit variables (the season of the year, the climatic region, and the site elevation H) because rho and ..beta.. are dependent on these three variables.

  20. Central Facility Benefits from Improvements

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i t z C oCNMSStaff Highlight NinaCentersCentralCentral2

  1. Carbon-free generation Carbon-free central generation of electricity, either through fossil

    E-Print Network [OSTI]

    Ohta, Shigemi

    of superconducting materials, which are key to integrating renewables on the grid. The 32-megawatt Long Island Solar will serve as a focal point for research and industrial involvement in tackling systems performance and grid, reducing the amount of precious metals needed to manufacture fuel cells for electric cars,

  2. High-gravity central stars

    E-Print Network [OSTI]

    Thomas Rauch

    2006-07-11T23:59:59.000Z

    NLTE spectral analyses of high-gravity central stars by means of state-of-the-art model atmosphere techniques provide information about the precursor AGB stars. The hydrogen-deficient post-AGB stars allow investigations on the intershell matter which is apparently exhibited at the stellar surface. We summarize recent results from imaging, spectroscopy, and spectropolarimetry.

  3. Turbo Receiver Design for Phase Noise Mitigation in OFDM Systems

    E-Print Network [OSTI]

    Sridharan, Gokul

    2010-01-01T23:59:59.000Z

    This paper addresses the issue of phase noise in OFDM systems. Phase noise (PHN) is a transceiver impairment resulting from the non-idealities of the local oscillator. We present a case for designing a turbo receiver for systems corrupted by phase noise by taking a closer look at the effects of the common phase error (CPE). Using an approximate probabilistic framework called variational inference (VI), we develop a soft-in soft-out (SISO) algorithm that generates posterior bit-level soft estimates while taking into account the effect of phase noise. The algorithm also provides an estimate of the phase noise sequence. Using this SISO algorithm, a turbo receiver is designed by passing soft information between the SISO detector and an outer forward error correcting (FEC) decoder that uses a soft decoding algorithm. It is shown that the turbo receiver achieves close to optimal performance.

  4. Heat Pipe Solar Receiver Development Activities at Sandia National Laboratories

    SciTech Connect (OSTI)

    Adkins, D.R.; Andraka, C.E.; Moreno, J.B.; Moss, T.A.; Rawlinson, K.S.; Showalter, S.K.

    1999-01-08T23:59:59.000Z

    Over the past decade, Sandia National Laboratories has been involved in the development of receivers to transfer energy from the focus of a parabolic dish concentrator to the heater tubes of a Stirling engine. Through the isothermal evaporation and condensation of sodium. a heat-pipe receiver can efficiently transfer energy to an engine's working fluid and compensate for irregularities in the flux distribution that is delivered by the concentrator. The operation of the heat pipe is completely passive because the liquid sodium is distributed over the solar-heated surface by capillary pumping provided by a wick structure. Tests have shown that using a heat pipe can boost the system performance by twenty percent when compared to directly illuminating the engine heater tubes. Designing heat pipe solar receivers has presented several challenges. The relatively large area ({approximately}0.2 m{sup 2}) of the receiver surface makes it difficult to design a wick that can continuously provide liquid sodium to all regions of the heated surface. Selecting a wick structure with smaller pores will improve capillary pumping capabilities of the wick, but the small pores will restrict the flow of liquid and generate high pressure drops. Selecting a wick that is comprised of very tine filaments can increase the permeability of the wick and thereby reduce flow losses, however, the fine wick structure is more susceptible to corrosion and mechanical damage. This paper provides a comprehensive review of the issues encountered in the design of heat pipe solar receivers and solutions to problems that have arisen. Topics include: flow characterization in the receiver, the design of wick systems. the minimization of corrosion and dissolution of metals in sodium systems. and the prevention of mechanical failure in high porosity wick structures.

  5. Testing of Stirling engine solar reflux heat-pipe receivers

    SciTech Connect (OSTI)

    Rawlinson, S.; Cordeiro, P.; Dudley, V.; Moss, T.

    1993-07-01T23:59:59.000Z

    Alkali metal heat-pipe receivers have been identified as a desirable interface to couple a Stirling-cycle engine with a parabolic dish solar concentrator. The reflux receiver provides power nearly isothermally to the engine heater heads while de-coupling the heater head design from the solar absorber surface design. The independent design of the receiver and engine heater head leads to high system efficiency. Heat pipe reflux receivers have been demonstrated at approximately 30 kW{sub t} power throughput by others. This size is suitable fm engine output powers up to 10 kW{sub e}. Several 25-kW{sub e}, Stirling-cycle engines exist, as well as designs for 75-kW{sub t} parabolic dish solar concentrators. The extension of heat pipe technology from 30 kW{sub t} to 75 kW{sub t} is not trivial. Heat pipe designs are pushed to their limits, and it is critical to understand the flux profiles expected from the dish, and the local performance of the wick structure. Sandia has developed instrumentation to monitor and control the operation of heat pipe reflux receivers to test their throughput limits, and analytical models to evaluate receiver designs. In the past 1.5 years, several heat pipe receivers have been tested on Sandia`s test bed concentrators (TBC`s) and 60-kW{sub t} solar furnace. A screen-wick heat pipe developed by Dynatherm was tested to 27.5 kW{sub t} throughput. A Cummins Power Generation (CPG)/Thermacore 30-kW{sub t} heat pipe was pushed to a throughput of 41 kW{sub t} to verify design models. A Sandia-design screen-wick and artery 75-kW{sub t} heat pipe and a CPG/Thermacore 75-kW{sub t} sintered-wick heat pipe were also limit tested on the TBC. This report reviews the design of these receivers, and compares test results with model predictions.

  6. Advanced Low-Cost Receivers for Parabolic Troughs

    Broader source: Energy.gov [DOE]

    This fact sheet describes an advanced, low-cost receiver project for parabolic troughs, awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. Norwich Technologies is designing a novel receiver that addresses these issues for parabolic trough concentrating solar power systems. This technology represents significant operational and cost advances in the most trusted and broadly implemented form of CSP and provides a viable pathway to achieving SunShot’s $0.06/kWh goal for utility-scale CSP systems.

  7. Factors Influencing the Prices Received for Texas Turkeys.

    E-Print Network [OSTI]

    Halpin, R. B.; Parnell, E. D.; Mountney, G. J.

    1954-01-01T23:59:59.000Z

    1952 300- 'j HENS 250 -Ae THANKSGIVING L 20 27 4 11 18 25 1 8 15 22 29 6 S E PT. OCT. N OV. DEC. i Figure 3. Average number of No. 1 live turkeys pu:. chased per transaction by sex by weeks, six plants, Texci 1951-52. I FALL MARKETING SEASON...Factors Influencing the Prices Received for Texas Turkeys TEXAS AGRICULTURAL EXPERIMENT STATION R. D. LEWIS. DIRECTOR, COLLEGE STATION. TEXAS DIGEST A study was conducted during 1950-53 of the factors influencing the market quality a1 received...

  8. Central Exclusive Production at RHIC

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Adamczyk, Leszek [Faculty of Physics and Applied Computer Science , AGH - University of Science and Technology, Krakow, (Poland); Guryn, Wlodek [Brookhaven National Laboratory (BNL), Upton, NY (United States); Turnau, Jacek [Institute of Nuclear Physics, Krakow, (Poland)

    2014-11-10T23:59:59.000Z

    The present status and future plans of the physics program of Central Exclusive Production (CEP) at RHIC are described. The measurements are based on the detection of the forward protons from the Double Pomeron Exchange (DPE) process in the Roman Pot system and of the recoil system of charged particles from the DPE process measured in the STAR experiment’s Time Projection Chamber (TPC). The data described here were taken using polarized proton-proton collisions at ps = 200 GeV. The preliminary spectra of two pion and four pion invariant mass reconstructed by STAR TPC in central region of pseudo-rapidity |#17;| < 1, are presented. Near future plans to take data with the current system at center-of-mass energy ps = 200 GeV and plans to upgrade the forward proton tagging sys- tem are presented. Also a possible addition of the Roman Pots to the sPHENIX detector is discussed.

  9. Central Exclusive Production at RHIC

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Adamczyk, Leszek; Guryn, Wlodek; Turnau, Jacek

    2014-11-10T23:59:59.000Z

    The present status and future plans of the physics program of Central Exclusive Production (CEP) at RHIC are described. The measurements are based on the detection of the forward protons from the Double Pomeron Exchange (DPE) process in the Roman Pot system and of the recoil system of charged particles from the DPE process measured in the STAR experiment’s Time Projection Chamber (TPC). The data described here were taken using polarized proton-proton collisions at ps = 200 GeV. The preliminary spectra of two pion and four pion invariant mass reconstructed by STAR TPC in central region of pseudo-rapidity |#17;| more »1, are presented. Near future plans to take data with the current system at center-of-mass energy ps = 200 GeV and plans to upgrade the forward proton tagging sys- tem are presented. Also a possible addition of the Roman Pots to the sPHENIX detector is discussed.« less

  10. COMPARATIVE COSTS OF CALIFORNIA CENTRAL STATION ELECTRICITY

    E-Print Network [OSTI]

    Laughlin, Robert B.

    CALIFORNIA ENERGY COMMISSION COMPARATIVE COSTS OF CALIFORNIA CENTRAL STATION ELECTRICITY GENERATION and Anitha Rednam, Comparative Costs of California Central Station Electricity Generation Technologies................................................................................................... 1 CHAPTER 1: Summary of Technology Costs

  11. Power generation considerations in a solar biomodal receiver

    SciTech Connect (OSTI)

    Rochow, R.F. [NovaTech, Lynchburg, VA (United States); Miles, B.J. [Babcock and Wilcox, Lynchburg, VA (United States)

    1996-12-31T23:59:59.000Z

    The Integrated Solar Upper Stage (ISUS), or solar bimodal stage provides both propulsive thrust for efficient orbital transfer(s) and electrical power generation for the spacecraft. The combined propulsive and power systems allow the solar bimodal system to effectively compete for a variety of missions. Once on station, thermionic converters are used to supply continuous electrical power to the satellite, even during periods when the spacecraft is in the Earth`s shadow. The key to continuous power supply is thermal energy storage. The ISUS propulsion system also benefits through the use of thermal storage. By utilizing a graphite receiver, large amounts of sensible heat can be stored for later power generation. Waste heat is radiated to space through the use of heat pipes. Clearly, the graphite mass must be minimized without sacrificing electrical power capability. Voltage and current characteristics are carefully designed to operate within acceptable ranges. The detailed design of the receiver/absorber/converter (RAC) power system must meet these requirements with as little impact to the remainder of the bimodal system as possible. This paper addresses the key design considerations of a solar bimodal receiver as a power plant. Factors including the thermal storage and heat transfer from the graphite receiver to the thermionic converters, the support structures, electrical insulation and converter string design will be discussed.

  12. Received 25 March 2002 Accepted 6 August 2002

    E-Print Network [OSTI]

    Received 25 March 2002 Accepted 6 August 2002 Published online 9 December 2002 Nuclear markers reveal unexpected genetic variation and a Congolese­Nilotic origin of the Lake Victoria cichlid species flock Ole Seehausen1,2* , Egbert Koetsier2 , Maria Victoria Schneider2 , Lauren J. Chapman3,4 , Colin A

  13. BLIND RECEIVERS FOR MISO COMMUNICATION SYSTEMS USING A NONLINEAR PRECODER

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    BLIND RECEIVERS FOR MISO COMMUNICATION SYSTEMS USING A NONLINEAR PRECODER Alain Y. Kibangou GIPSA.Kibangou@ujf-grenoble.fr ABSTRACT In this paper, we propose two blind decoding approaches for multi-input single-output (MISO of simulations. 1. INTRODUCTION Multi-input Single Output (MISO) communication channel modelling occurs when

  14. MODELLING OF CAVITY RECEIVER HEAT TRANSFER COMPACT LINEAR FRESNEL REFLECTOR

    E-Print Network [OSTI]

    . This approach allows an affordable entry into renewable energy for existing coal-power producers, and allows them to meet the mandatory renewable energy targets set by the government of New South Wales . (Hu et) linear absorbers, achieving higher ground area efficiency. · Receiver is an inverted, trapezoidal, linear

  15. DESIGN OF THE TRANSCONDUCTANCE AMPLIFIER FOR FREQUENCY DOMAIN SAMPLING RECEIVER

    E-Print Network [OSTI]

    Chen, XI

    2010-01-16T23:59:59.000Z

    -1. Introduction and motivation of the high resolution & high sampling rate ADC ........................................................................ 27 3-2. Specifications of the Gm stage ..................................................... 28... 3-3. Circuit design of the Gm stage ...................................................... 29 IV A DIFFERENTIAL NOISE CANCELLING LOW NOISE TRANSCONDUCTANCE AMPLIFIER FOR DRIVING THE FD RF COMMUNICATION RECEIVER...

  16. Received 11 January 2002 Accepted 1 March 2002

    E-Print Network [OSTI]

    Pratt, Stephen

    Received 11 January 2002 Accepted 1 March 2002 Published online 29 May 2002 Deciding on a new home, Bristol BS8 1UG, UK 5 Section of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA nectar sources, ants stub- bornly wasting energy on longer routes--can be adaptive in the long term

  17. Shipping and Receiving Dangerous Goods at Georgia Tech

    E-Print Network [OSTI]

    Shipping and Receiving Dangerous Goods at Georgia Tech Contacts: Biological Shipments: Shane://industry.gatech.edu/researchers/forms) GENERAL: The transportation of dangerous goods is regulated by a number of national and international of Dangerous Goods (Flash). PROCESS: 1) All shipments must have a Document Id number as well as a People

  18. top 3 winners receive one of the following

    E-Print Network [OSTI]

    Rock, Chris

    top 3 winners receive one of the following: · iPad® · GoPro® Camera · Mountain Bike TOP 20 AT THE COMMONS FOR THE REMAINDER OF THE SEMESTER! TOP THAT AT TEXAS TECH! Sauce It, Stack It, Slice It. Any Way Pizza Contest TOP THAT! CREATIVE PIZZA CONTEST ENTRY FORM JUDGING CRITERIA: Among all qualified entries

  19. Organizational Science Doctoral Student Receives NCA Honor By Lynn Roberson

    E-Print Network [OSTI]

    Kelly, Scott David

    Organizational Science Doctoral Student Receives NCA Honor By Lynn Roberson Communications Director College of Liberal Arts & Sciences UNC Charlotte Organizational Science Ph.D. student David Askay has Dr. Steven Rogelberg, director of organizational science at UNC Charlotte. "His research holds great

  20. A Wideband OOK Receiver for Wireless Capsule Yanping Zhou# 1

    E-Print Network [OSTI]

    Nam, Sangwook

    . The storage capacitor of the envelope detector is optimized to obtain good sensitivity and high data rate receiver has simple structure, it can be implemented with a small chip size. Traditional super- heterodyne) and demodulator. Usually off-chip resistors and capacitors are necessary for the loop filter in the PLL. The OOK

  1. Electrical and Computer Engineering Professor Sanjay Krishna Receives Awards

    E-Print Network [OSTI]

    New Mexico, University of

    Electrical and Computer Engineering Professor Sanjay Krishna Receives Awards April 1, 2013 and regents' lecturer will be presented with the Young Scientist Award for 2013 from the International Symposium of Compound Semiconductors in May at their meeting in Kobe, Japan. The award, which

  2. Received 9 June 2004 Accepted 25 June 2004

    E-Print Network [OSTI]

    Davies, Jonathan

    dependent on solar energy input. Previous work demonstrated a sig- nificant correlation between the generalReceived 9 June 2004 Accepted 25 June 2004 Published online 24 September 2004 Environmental energy Biology, Imperial College London, Silwood Park Campus, Ascot SL5 7PY, UK 2 Molecular Systematics Section

  3. Building America Webinar: Retrofitting Central Space Conditioning...

    Energy Savers [EERE]

    Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings - Steam Systems, Retrofit Measure Packages, Hydronic Systems Building America Webinar:...

  4. Distributed trace using central performance counter memory

    DOE Patents [OSTI]

    Satterfield, David L; Sexton, James C

    2013-10-22T23:59:59.000Z

    A plurality of processing cores, are central storage unit having at least memory connected in a daisy chain manner, forming a daisy chain ring layout on an integrated chip. At least one of the plurality of processing cores places trace data on the daisy chain connection for transmitting the trace data to the central storage unit, and the central storage unit detects the trace data and stores the trace data in the memory co-located in with the central storage unit.

  5. Distributed trace using central performance counter memory

    DOE Patents [OSTI]

    Satterfield, David L.; Sexton, James C.

    2013-01-22T23:59:59.000Z

    A plurality of processing cores, are central storage unit having at least memory connected in a daisy chain manner, forming a daisy chain ring layout on an integrated chip. At least one of the plurality of processing cores places trace data on the daisy chain connection for transmitting the trace data to the central storage unit, and the central storage unit detects the trace data and stores the trace data in the memory co-located in with the central storage unit.

  6. Program Building Committee's Central Planning Group.

    E-Print Network [OSTI]

    Richardson, Burl B.; Marshall, Mary G.

    1982-01-01T23:59:59.000Z

    Tooe ZTA245.7 8873 Y)O./3~ The Texas A&M (stem r ultural ~ion ~ervrce Damet C Plannstlel. Director College Stallon Program Building Committee's CENTRAL PLANNING GROUP 8-1344 Authors: Burl B. Richardson , Extension Program Specialist... and Mary G. Marshall, Extension Program Specialist Program -Building Committee's CENTRAL PLANNING GROUP This leaflet describes the role of the central planning group in the program development process_ The central planning group is the highest...

  7. Building America Webinar: Retrofitting Central Space Conditioning...

    Energy Savers [EERE]

    Strategies for Multifamily Buildings - Control strategies to improve hydronic space heating performance Building America Webinar: Retrofitting Central Space Conditioning...

  8. Building America Webinar: Retrofitting Central Space Conditioning...

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

    Introduction Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings - Introduction This presentation serves as the introduction to...

  9. CENTRAL EUROPE MANAGING AUTHORITY CITY OF VIENNA

    E-Print Network [OSTI]

    Genova, Università degli Studi di

    CENTRAL EUROPE MANAGING AUTHORITY CITY OF VIENNA Municipal Department for European affairs (MA 27 PROGRAMME Thematic study: Energy efficiency and renewable energies in the CENTRAL EUROPE Programme Request European regions more competitive, innovative, attractive and accessible. The Central Europe Programme area

  10. 14th Annual Conference Central Eurasian

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    The State of Social Mobilization in Central Eurasia Book Sales Identity Politic (Pre-)Islamic Rituals the City Turkey and the EU in the Post-Soviet Space: Security, Energy and Gender Session II 10:15 am - 12:00 pm China's New Role in Central Asia Book Sales Education and Community Development in Rural Central

  11. West Central Texas Regional Transportation Final Report 

    E-Print Network [OSTI]

    West Central Texas Council of Governments

    2006-01-01T23:59:59.000Z

    WEST CENTRAL TEXAS REGIONAL REGIONAL TRANSPORTATION TRANSPORTATION FINAL REPORT NOVEMBER 2006 West Central Texas Regional Transit Coordination Plan Final Report and Executive Summary November 2006 A&R Consulting The Goodman... Workshops 177 Appendix C - Public Meetings 183 West Central Texas Regional Transit Coordination Plan Final Report and Executive Summary November 2006 A&R Consulting The Goodman Corporation November 2006 3 EXECUTIVE SUMMARY...

  12. Universidad Central de Venezuela Facultad de Ciencias

    E-Print Network [OSTI]

    Coto, Ernesto

    Universidad Central de Venezuela Facultad de Ciencias Escuela de Computación Una herramienta para. Universidad Central de Venezuela. {ecoto, hnavarro, omaira}@opalo.ciens.ucv.ve **Laboratorio TOOLS. Escuela de Computación. Facultad de Ciencias. Universidad Central de Venezuela. amatteo@isys.ciens.ucv.ve Caracas, Enero

  13. The south central Texas heavy rain event of October 1998: an MM5 simulation and diagnosis of convective initiation

    E-Print Network [OSTI]

    Scott, Richard Kevin

    2001-01-01T23:59:59.000Z

    During the weekend of 17-18 October 1998, extremely heavy rainfall over south central Texas resulted in widespread flash flooding and numerous river floods. Southern Hays County received 760 mm of rainfall, and an area of 18,000 km² recorded over...

  14. Gamma Ray Burst Central Engines

    E-Print Network [OSTI]

    Todd A. Thompson

    2008-07-04T23:59:59.000Z

    I review aspects of the theory of long-duration gamma-ray burst (GRB) central engines. I focus on the requirements of any model; these include the angular momentum of the progenitor, the power, Lorentz factor, asymmetry, and duration of the flow, and both the association and the non-association with bright supernovae. I compare and contrast the collapsar and millisecond proto-magnetar models in light of these requirements. The ability of the latter model to produce a flow with Lorentz factor ~100 while simultaneously maintaining a kinetic luminosity of ~10^50 ergs/s for a timescale of ~10-100 s is emphasized.

  15. Central Ferry-Lower Monumental

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWPSuccessAlamos Laboratory NastasiPASTCentral AirCentral Ferry Lower

  16. Central Hudson Gas and Electric (Electric)- Commercial Lighting Rebate Program

    Broader source: Energy.gov [DOE]

    Central Hudson Gas and Electric's (Central Hudson) Commercial Lighting Rebate Program is for businesses, retailers, institutional customers and non-profit customers of Central Hudson. The progam...

  17. Application for Presidential Permit OE Docket No. PP-059 Central...

    Office of Environmental Management (EM)

    59 Central Power and Light Company (CPL) Application for Presidential Permit OE Docket No. PP-059 Central Power and Light Company (CPL) Application from Central Power and Light...

  18. Determining benefits and costs of improved central air conditioner efficiencies

    E-Print Network [OSTI]

    Rosenquist, G.

    2010-01-01T23:59:59.000Z

    Products: Central Air Conditioners and Heat Pumps Energyof Improved Central Air Conditioner Efficiencies Authorsresidential-type central air conditioner energy-efficiency

  19. Central Equatorial Pacific Experiment (CEPEX)

    SciTech Connect (OSTI)

    Not Available

    1993-01-01T23:59:59.000Z

    The Earth's climate has varied significantly in the past, yet climate records reveal that in the tropics, sea surface temperatures seem to have been remarkably stable, varying by less than a few degrees Celsius over geologic time. Today, the large warm pool of the western Pacific shows similar characteristics. Its surface temperature always exceeds 27[degree]C, but never 31[degree]C. Heightened interest in this observation has been stimulated by questions of global climate change and the exploration of stabilizing climate feedback processes. Efforts to understand the observed weak sensitivity of tropical sea surface temperatures to climate forcing has led to a number of competing ideas about the nature of this apparent thermostat. Although there remains disagreement on the processes that regulate tropical sea surface temperature, most agree that further progress in resolving these differences requires comprehensive field observations of three-dimensional water vapor concentrations, solar and infrared radiative fluxes, surface fluxes of heat and water vapor, and cloud microphysical properties. This document describes the Central Equatorial Pacific Experiment (CEPEX) plan to collect such observations over the central equatorial Pacific Ocean during March of 1993.

  20. Receiver for solar energy collector having improved aperture aspect

    DOE Patents [OSTI]

    McIntire, William R. (Downers Grove, IL)

    1984-01-01T23:59:59.000Z

    A secondary concentrator for use in receiver systems for linear focusing primary concentrators is provided with reflector wings at each end. The wings increase the capture of light rays reflected from areas adjacent the rim of a primary concentrator, increasing the apparent aperture size of the absorber as viewed from the rim of the primary concentrator. The length, tilt, and curvature of the wing reflectors can be adjusted to provide an absorber having a desired aperture aspect.

  1. Providing protection: Agencies receive funding to repair, upgrade dams

    E-Print Network [OSTI]

    Wythe, Kathy

    2009-01-01T23:59:59.000Z

    Story by Kathy Wythe tx H2O | pg. 26 Providing protection Agencies receive funding to repair, upgrade dams along with local partners, can apply for grant funds, he said. Construction of the dams began through four federal authorizations..., called floodwater retarding structures and built mostly in rural areas during the 1950s to 1970s, are aging and need repairing. Others now protect urban areas that have developed downstream and need upgrading to meet more stringent safety standards...

  2. Taxation of oil and gas payments received independent of production

    SciTech Connect (OSTI)

    Fambrough, J.

    1983-06-01T23:59:59.000Z

    Several economic incentives are offered to mineral owners for entering into an oil and gas lease. These are: (1) a bonus; (2) a delay rental; (3) a royalty. This article is intended to aid in the understanding of the tax treatment for these oil and gas payments, received independent of production, in order to avoid any tax penalties and to elucidate a tax-minimization strategy. 11 references, 7 tables. (NLG)

  3. Digital-data receiver synchronization method and apparatus

    DOE Patents [OSTI]

    Smith, Stephen F.; Turner, Gary W.

    2005-12-06T23:59:59.000Z

    Digital-data receiver synchronization is provided with composite phase-frequency detectors, mutually cross-connected comparison feedback or both to provide robust reception of digital data signals. A single master clock may be used to provide frequency signals. Advantages can include fast lock-up time in moderately to severely noisy conditions, greater tolerance to noise and jitter when locked, and improved tolerance to clock asymmetries.

  4. Digital-data receiver synchronization method and apparatus

    DOE Patents [OSTI]

    Smith, Stephen F. (Loudon, TN) [Loudon, TN; Turner, Gary W. (Clinton, TN) [Clinton, TN

    2009-09-08T23:59:59.000Z

    Digital data receiver synchronization is provided with composite phase-frequency detectors, mutually cross-connected comparison feedback or both to provide robust reception of digital data signals. A single master clock can be used to provide frequency signals. Advantages can include fast lock-up time in moderately to severely noisy conditions, greater tolerance to noise and jitter when locked, and improved tolerance to clock asymmetries.

  5. TCAT to Receive Ithaca's First 'Cutting-Edge' Fuel Cell Bus ...

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

    Archived News Stories Latest News TCAT to Receive Ithaca's First 'Cutting-Edge' Fuel Cell Bus 2 Cornellians receive Distinguished Scholar Award Versatile polymer film...

  6. Y-12 CIO Travis Howerton Receives 2009 Linton Brooks Medal for...

    National Nuclear Security Administration (NNSA)

    Home Field Offices Welcome to the NNSA Production Office NPO News Releases Y-12 CIO Travis Howerton Receives 2009 Linton ... Y-12 CIO Travis Howerton Receives 2009...

  7. Nanofluid-based receivers for high-temperature, high-flux direct solar collectors

    E-Print Network [OSTI]

    Lenert, Andrej

    2010-01-01T23:59:59.000Z

    Solar power plants with surface receivers have low overall energy conversion efficiencies due to large emissive losses at high temperatures. Alternatively, volumetric receivers promise increased performance because solar ...

  8. Power efficiency for very high temperature solar thermal cavity receivers

    DOE Patents [OSTI]

    McDougal, Allan R. (LaCanada-Flintridge, CA); Hale, Robert R. (Upland, CA)

    1984-01-01T23:59:59.000Z

    This invention is an improved solar energy cavity receiver for exposing materials and components to high temperatures. The receiver includes a housing having an internal reflective surface defining a cavity and having an inlet for admitting solar radiation thereto. A photothermal absorber is positioned in the cavity to receive radiation from the inlet. A reflective baffle is positioned between the absorber and the inlet to severely restrict the re-radiation of energy through the inlet. The front surface of the baffle defines a narrow annulus with the internal reflective surface of the housing. The front surface of the baffle is contoured to reflect incoming radiation onto the internal surface of the housing, from which it is reflected through the annulus and onto the front surface of the absorber. The back surface of the baffle intercepts infrared radiation from the front of the absorber. With this arrangement, a high percentage of the solar power input is retained in the cavity; thus, high internal temperatures are attained.

  9. Combustion system for hybrid solar fossil fuel receiver

    DOE Patents [OSTI]

    Mehos, Mark S.; Anselmo, Kenneth M.; Moreno, James B.; Andraka, Charles E.; Rawlinson, K. Scott; Corey, John; Bohn, Mark S.

    2004-05-25T23:59:59.000Z

    A combustion system for a hybrid solar receiver comprises a pre-mixer which combines air and fuel to form an air-fuel mixture. The mixture is introduced tangentially into a cooling jacket. A burner plenum is fluidically connected to the cooling jacket such that the burner plenum and the cooling jacket are arranged in thermal contact with one another. The air-fuel mixture flows through the cooling jacket cooling the burner plenum to reduce pre-ignition of the air-fuel mixture in the burner plenum. A combustion chamber is operatively associated with and open to the burner plenum to receive the air-fuel mixture from the burner plenum. An igniter is operatively positioned in the combustion chamber to combust the air-fuel mixture, releasing heat. A recuperator is operatively associated with the burner plenum and the combustion chamber and pre-heats the air-fuel mixture in the burner plenum with heat from the combustion chamber. A heat-exchanger is operatively associated and in thermal contact with the combustion chamber. The heat-exchanger provides heat for the hybrid solar receiver.

  10. Wideband Heterodyne QWIP Receiver Development for Thermonuclear Fusion Measurements

    SciTech Connect (OSTI)

    Bennett, C.A.; Buchanan, M.; Hutchinson, D.P.; Liu, H.C.; Richards, R.K.; Simpson, M.L.

    1998-11-01T23:59:59.000Z

    Oak Ridge National Laboratory (ORNL) has been developing heterodyne receivers for plasma diagnostic applications for over 20 years. One area of this work has been the development of a diagnostic system for the measurement of the energy of alpha particles created in a thermonuclear fusion reactor. These particles originate with an energy of 3.5 MeV and cool to the thermal energy of the plasma (around 15 keV) after several seconds. To measure the velocity distribution of these alpha particles, a Thomson scattering diagnostic is under development based on a high power CO{sub 2} laser at 10 microns with a heterodyne receiver. The Doppler shift generated by Thomson scattering of the alpha particles requires a wideband heterodyne receiver (greater than 10 GHz). Because Mercury-Cadimum-Telluride (MCT) detectors are limited to a bandwidth of approximately 2 GHz, a Quantum Well Infrared Photodetector (QWIP) detector was obtained from the National Research Council of Canada (NRC) and evaluated for its heterodyne performance using the heterodyne testing facility developed at ORNL.

  11. Patricia A. Castillo is currently a MSc. Petroleum Engineering student at the Colorado School of Mines, where she also serves as a Research and Teaching Assistant. She received her

    E-Print Network [OSTI]

    of Mines, where she also serves as a Research and Teaching Assistant. She received her BS in Petroleum Engineering from Universidad Central de Venezuela in 2007. During her Bachelor program she developed software, and also was presented in the SPE Venezuelan Student Chapter. Her research focuses on achieve a better

  12. Central Solenoid Insert Technical Specification

    SciTech Connect (OSTI)

    Martovetsky, Nicolai N [ORNL; Smirnov, Alexandre [ORNL

    2011-09-01T23:59:59.000Z

    The US ITER Project Office (USIPO) is responsible for the ITER central solenoid (CS) contribution to the ITER project. The Central Solenoid Insert (CSI) project will allow ITER validation the appropriate lengths of the conductors to be used in the full-scale CS coils under relevant conditions. The ITER Program plans to build and test a CSI to verify the performance of the CS conductor. The CSI is a one-layer solenoid with an inner diameter of 1.48 m and a height of 4.45 m between electric terminal ends. The coil weight with the terminals is approximately 820 kg without insulation. The major goal of the CSI is to measure the temperature margin of the CS under the ITER direct current (DC) operating conditions, including determining sensitivity to load cycles. Performance of the joints, ramp rate sensitivity, and stability against thermal or electromagnetic disturbances, electrical insulation, losses, and instrumentation are addressed separately and therefore are not major goals in this project. However, losses and joint performance will be tested during the CSI testing campaign. The USIPO will build the CSI that will be tested at the Central Solenoid Model Coil (CSMC) Test Facility at the Japan Atomic Energy Agency (JAEA), Naka, Japan. The industrial vendors (the Suppliers) will report to the USIPO (the Company). All approvals to proceed will be issued by the Company, which in some cases, as specified in this document, will also require the approval of the ITER Organization. Responsibilities and obligations will be covered by respective contracts between the USIPO, called Company interchangeably, and the industrial Prime Contractors, called Suppliers. Different stages of work may be performed by more than one Prime Contractor, as described in this specification. Technical requirements of the contract between the Company and the Prime Contractor will be covered by the Fabrication Specifications developed by the Prime Contractor based on this document and approved by the Company and ITER. The Fabrication Specifications may reflect some national requirements and regulations that are not fully provided here. This document presents the ITER CSI specifications.

  13. Dr. Douglas G. Horner Receives Research Award Dr. Douglas G. Horner, OD PhD, has received an award to support a new collaborative

    E-Print Network [OSTI]

    Indiana University

    Dr. Douglas G. Horner Receives Research Award Dr. Douglas G. Horner, OD PhD, has received an award. Peabody, OD, of IUSO on, "Developing and Implementing 21st Century Ideas on Optometry through Area Studies

  14. Paul Moore Receives Top Oklahoma Art Awards NORMAN --Paul Moore, University of Oklahoma Artist-In-Residence, will receive a Special Recognition

    E-Print Network [OSTI]

    Oklahoma, University of

    Paul Moore Receives Top Oklahoma Art Awards NORMAN -- Paul Moore, University of Oklahoma Artist-In-Residence, will receive a Special Recognition Award Awards Ceremony at the Oklahoma Capitol Nov. 13. Moore is currently working

  15. Transmission of Megawatt Relativistic Electron Beams through Millimeter Apertures

    E-Print Network [OSTI]

    Alarcon, R.

    High-power, relativistic electron beams from energy-recovering linacs have great potential to realize new experimental paradigms for pioneering innovation in fundamental and applied research. A major design consideration ...

  16. Modal Dynamics and Stability of Large Multi-megawatt Deepwater...

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

    and O&M, while maintaining or increasing energy production. A vertical-axis wind turbine (VAWT) rotor configuration offers a potential transformative technology solution...

  17. 10-Megawatt Supercritical Carbon Dioxide Turbine- FY13 Q2

    Broader source: Energy.gov [DOE]

    This document summarizes the progress of this National Renewable Energy Laboratory project, funded by SunShot, for the second quarter of fiscal year 2013.

  18. Transmission of Megawatt Relativistic Electron Beams Through Millimeter Apertures

    SciTech Connect (OSTI)

    Arizona State University; Arizona State University; JLAB; MIT; College of William and Mary, JLAB; MIT; JLAB; JLAB; MIT; MIT; Hampton University; MIT; JLAB; MIT; JLAB; MIT; MIT; JLAB; MIT; JLAB; JLAB

    2013-10-01T23:59:59.000Z

    High power, relativistic electron beams from energy recovery linacs have great potential to realize new experimental paradigms for pioneering research in fundamental and applied research. A major design consideration for these new generation of experimental capabilities is the understanding of the halo associated with these bright, intense beams. In this Letter, we report on measurements performed using the 100 MeV, 430 kWatt CW electron beam from the energy recovery linac at the Jeff#11;erson Laboratory's Free Electron Laser facility as it traversed a set of small apertures in a 127 mm long aluminum block. Thermal measurements of the block together with neutron measurements near the beam-target interaction point yielded a consistent understanding of the beam losses. These were determined to be 3 ppm through a 2 mm diameter aperture and were maintained during a 7 hour continuous run.

  19. Dynamic analysis of a 5 megawatt offshore floating wind turbine

    E-Print Network [OSTI]

    Harriger, Evan Michael

    2011-01-01T23:59:59.000Z

    Why offshore wind energy? Offshore wind turbines have theturbine will also uncover potential problems that exist with offshore wind energy.

  20. Sandia National Laboratories: deep-water multiple-megawatt VAWT

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

    vertical-axis wind turbines (VAWTs). This analysis uses a 5 MW VAWT topside design envelope created by Sandia to compare floating platform options for each turbine in the...

  1. Megawatt targets (and horn) for Neutrino Super-Beams

    E-Print Network [OSTI]

    McDonald, Kirk

    wide Water cooling tube Fits within the horn without touching. 2 int. length long; narrow so pions get arrangement Subdivided subdivided monolithic Cooling Water (forced convection) Helium (natural convection enough ( 2 interaction lengths ) to interact most protons Dense enough that 2 lint fits in focusing

  2. Dynamic analysis of a 5 megawatt offshore floating wind turbine

    E-Print Network [OSTI]

    Harriger, Evan Michael

    2011-01-01T23:59:59.000Z

    1985. 23. Hau, E. Wind Turbines: Fundamentals, Technologies,for Floating Offshore Wind Turbines. Tech. no. NREL/CP-500-Full-scale Floating Wind Turbine." Statoil, 14 Oct. 2009.

  3. Five-megawatt geothermal-power pilot-plant project

    SciTech Connect (OSTI)

    Not Available

    1980-08-29T23:59:59.000Z

    This is a report on the Raft River Geothermal-Power Pilot-Plant Project (Geothermal Plant), located near Malta, Idaho; the review took place between July 20 and July 27, 1979. The Geothermal Plant is part of the Department of Energy's (DOE) overall effort to help commercialize the operation of electric power plants using geothermal energy sources. Numerous reasons were found to commend management for its achievements on the project. Some of these are highlighted, including: (a) a well-qualified and professional management team; (b) effective cost control, performance, and project scheduling; and (c) an effective and efficient quality-assurance program. Problem areas delineated, along with recommendations for solution, include: (1) project planning; (2) facility design; (3) facility construction costs; (4) geothermal resource; (5) drilling program; (6) two facility construction safety hazards; and (7) health and safety program. Appendices include comments from the Assistant Secretary for Resource Applications, the Controller, and the Acting Deputy Director, Procurement and Contracts Management.

  4. Final Environmental Impact Report: North Brawley Ten Megawatt Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEuropeStrat.pdfInactive Jump to: navigation,

  5. Dynamic analysis of a 5 megawatt offshore floating wind turbine

    E-Print Network [OSTI]

    Harriger, Evan Michael

    2011-01-01T23:59:59.000Z

    Offshore wind turbines have the potential to generateuncover potential problems that exist with offshore windwind turbines in operation, this technology has the potential

  6. A TEN MEGAWATT BOILING HETEROGENEOUS PACKAGE POWER REACTOR. Reactor...

    Office of Scientific and Technical Information (OSTI)

    A reactor and associated power plant designed to produce 1.05 Mwh and 3.535 Mwh of steam for heating purposes are described. The total thermal output of the reactor is 10 Mwh....

  7. Funding Opportunity: Next Generation Electric Machines: Megawatt Class

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: Congestion Study CommentsStolar,NEACEnergy

  8. Project Profile: 10-Megawatt Supercritical Carbon Dioxide Turbine |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014, an OHASeptember 2010 | Department ofPlantLong Island HTSProject Mgt

  9. NREL: Concentrating Solar Power Research - 10-Megawatt Supercritical Carbon

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Saleshttp://www.fnal.gov/directorate/nalcal/nalcal02_07_05_files/nalcal.gifNREL NRELChemical andWhat Is aResidentialWorking With

  10. Mass Megawatts Wind Power Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRose Bend <Stevens Jump to:source History View

  11. Next Generation Electric Machines: Megawatt Class Motors FOA Informational

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOilNEW HAMPSHIREofNewsletter Newsletter Better BuildingsAttics andWebinar

  12. Geographic Information System At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Laney, 2005) Exploration Activity Details Location Central Nevada...

  13. SONY GXB5005 GPS RECEIVER DATA Without shield can Installed With shield can in place

    E-Print Network [OSTI]

    Berns, Hans-Gerd

    SONY GXB5005 GPS RECEIVER DATA Without shield can Installed With shield can in place (for illustrative purposes only) The Sony GXB5005 GPS receiver is a miniature 12 channel GPS module with support for WAAS/EGNOS augmented positioning. The receiver is based on Sony's CXD2951 single-chip GPS receiver IC

  14. 2090 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 57, NO. 7, JULY 2009 Turbo Receivers for

    E-Print Network [OSTI]

    Benoît, Escrig

    2090 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 57, NO. 7, JULY 2009 Turbo Receivers for Interleave turbo receivers for Interleave- Division Multiple-Access (IDMA) systems will be discussed. The multiple provides faster convergence of the turbo receiver. The discussed turbo receivers will be evaluated by means

  15. Laboratory researcher Joel Rowland to receive DOE Early Career Award

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your Home asLCLSLaboratoryRowland to receive DOE Early Career

  16. NREL: Concentrating Solar Power Research - Receiver R&D

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Saleshttp://www.fnal.gov/directorate/nalcal/nalcal02_07_05_files/nalcal.gifNREL NRELChemical andWhat IsThermalReceiver R&D

  17. Hanford Projects Receive Sustainability Awards | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently Asked Questions for DOE FYAffairs,Assessment Documents |Project|Projects Receive

  18. Westinghouse receives high marks for management, operation of WIPP

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsing Maps1DOETHEWeeklyTRU Solutions LLC EarnsEarnsReceives

  19. EM Receives Several Honors in 2011 DOE Sustainability Awards | Department

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,Office ofEnergyFinalEnergy Boosts Efforts to Helpof Energy Receives

  20. Central Invariants of the Constrained KP Hierarchies

    E-Print Network [OSTI]

    Si-Qi Liu; Youjin Zhang; Xu Zhou

    2015-02-06T23:59:59.000Z

    We compute the central invariants of the bihamiltonian structures of the constrained KP hierarchies, and show that these integrable hierarchies are topological deformations of their hydrodynamic limits.

  1. Fire hazards analysis of central waste complex

    SciTech Connect (OSTI)

    Irwin, R.M.

    1996-05-30T23:59:59.000Z

    This document analyzes the fire hazards associated with operational the Central Waste Complex. It provides the analysis and recommendations necessary to ensure compliance with applicable fire codes.

  2. Central Characterization Program (CCP), Acceptable Knowledge...

    Office of Environmental Management (EM)

    for Los Alamos National Laboratory, TA-55 Mixed Transuranic Waste Streams Central Characterization Program (CCP), Acceptable Knowledge Summary Report for Los Alamos National...

  3. Central Characterization Program (CCP) Transuranic Waste Certification...

    Office of Environmental Management (EM)

    Certification Plan Central Characterization Program (CCP) Transuranic Waste Certification Plan This document was used to determine facts and conditions during the Department of...

  4. Central Characterization Program (CCP) Transuranic Waste Characterizat...

    Office of Environmental Management (EM)

    Characterization Quality Assurance Project Plan Central Characterization Program (CCP) Transuranic Waste Characterization Quality Assurance Project Plan This document was used to...

  5. Central Characterization Program (CCP) Acceptable Knowledge Documentat...

    Office of Environmental Management (EM)

    Acceptable Knowledge Documentation Central Characterization Program (CCP) Acceptable Knowledge Documentation This document was used to determine facts and conditions during the...

  6. Central Characterization Program (CCP) Transuranic Authorized...

    Office of Environmental Management (EM)

    Authorized Methods for Payload Control Central Characterization Program (CCP) Transuranic Authorized Methods for Payload Control This document was used to determine facts and...

  7. Central Characterization Program (CCP) TRU Nonconforming Item...

    Office of Environmental Management (EM)

    TRU Nonconforming Item Reporting and Control Central Characterization Program (CCP) TRU Nonconforming Item Reporting and Control This document was used to determine facts and...

  8. cole Centrale de Nantes cole Doctorale

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    'équipe MPTC du GeM à l'Ecole Centrale de Nantes. Cependant, cette thèse a été réalisée avec plusieurs

  9. Stirling's approximation for central polynomial coefficients

    E-Print Network [OSTI]

    Eger, Steffen

    2012-01-01T23:59:59.000Z

    We derive asymptotic formulae for central polynomial coefficients, a generalization of binomial coefficients, using the distribution of the sum of independent uniform random variables and the CLT.

  10. East Central Electric Cooperative- Residential Rebate Program

    Broader source: Energy.gov [DOE]

    East Central Electric Cooperative offers rebates to residential customers to install energy-efficient ground source heat pumps, electric water heaters, and appliances. To qualify for the rebate...

  11. The performance analysis of linux networking - packet receiving

    SciTech Connect (OSTI)

    Wu, Wenji; Crawford, Matt; Bowden, Mark; /Fermilab; ,

    2006-11-01T23:59:59.000Z

    The computing models for High-Energy Physics experiments are becoming ever more globally distributed and grid-based, both for technical reasons (e.g., to place computational and data resources near each other and the demand) and for strategic reasons (e.g., to leverage equipment investments). To support such computing models, the network and end systems, computing and storage, face unprecedented challenges. One of the biggest challenges is to transfer scientific data sets--now in the multi-petabyte (10{sup 15} bytes) range and expected to grow to exabytes within a decade--reliably and efficiently among facilities and computation centers scattered around the world. Both the network and end systems should be able to provide the capabilities to support high bandwidth, sustained, end-to-end data transmission. Recent trends in technology are showing that although the raw transmission speeds used in networks are increasing rapidly, the rate of advancement of microprocessor technology has slowed down. Therefore, network protocol-processing overheads have risen sharply in comparison with the time spent in packet transmission, resulting in degraded throughput for networked applications. More and more, it is the network end system, instead of the network, that is responsible for degraded performance of network applications. In this paper, the Linux system's packet receive process is studied from NIC to application. We develop a mathematical model to characterize the Linux packet receiving process. Key factors that affect Linux systems network performance are analyzed.

  12. FACSIM/MRS-1: Cask receiving and consolidation performance assessment

    SciTech Connect (OSTI)

    Lotz, T.L.; Shay, M.R.

    1987-06-01T23:59:59.000Z

    A simulation analysis was completed to assess the performance of the shipping cask receiving and spent-fuel handling, consolidation and canistering operations of the Monitored Retrievable Storage (MRS) facility. One purpose of this evaluation was to estimate the limits of MRS operational capabilities and factors leading to those limitations. The model used to obtain the performance assessment, FACSIM/MRS-1, is one of two components of the FACSIM model developed by PNL's simulation effort for the nuclear waste-handling facility. FACSIM/MRS-1 provides the user with information about lag-storage requirements, machine use, cask queues, welder queues, and cask process and cask turnaround times. The model can help determine the effect that the following activities have on operating efficiency: (1) receiving multiple cask shipments, when rail-cask or truck-cask shipments arrive at the facility in groups of two or more, and (2) operating the facility five days per week, three shifts per day or seven days per week, three shifts per day for any conditions. In addition, sensitivity to equipment failure frequency and the time needed for equipment repair can be studied. Information on the above operating characteristics may be obtained for any spent-fuel rate, any split of shipments between truck and rail transport, or any split of boiling water reactor/pressurized water reactor fuel.

  13. Atmospheric chemistry effects of the 1998 Mexican/Central American fires measured in central New Mexico USA.

    SciTech Connect (OSTI)

    Popp, C. J.

    1998-12-16T23:59:59.000Z

    Atmospheric effects from large fires have received a great deal of interest recently, especially when the fires have the potential to effect human health when the plumes are transported long distances over areas of high population density. Examples are the recent large fires in Southeast Asia in 1997 (1) and the wildfires occurring in southern Mexico and Central America that were manifested in decreased visibility and high aerosol concentrations in the United States at distances of 2500-4000 km from the fires. In addition to fine aerosols, these biomass fires have the potential to produce and transport large quantities of oxygenated organic species such as aldehydes, ketones and carboxylic acids, hydrocarbons, and sulfate and nitrate species. Most of the literature reports dealing with products of biomass burning have been related to fireplace and wood burning stove emissions (2,3) and with local effects from forest fires(4). The recent super-large fires occurring in Indonesia and Mexico/Central America also bring about the issue of atmospheric reactivity because long-range transport affords long reaction times for photochemical reactions, wet and dry deposition and surface reactions on the aerosol particles. The smoke/haze conditions prompted considerable concern among the general population in New Mexico regarding health hazards and a large number of calls to the Albuquerque, NM Air Quality Division which reported the PM{sub 10} samples collected showed no significant increase in mass(5). The conclusion was that the particles were very fine and therefore had considerable influence on the visibility but did not violate health standards. In this study, organic and inorganic chemical species in the gaseous and aerosol phases have been identified and quantified under non-smoky and smoky conditions in Central New Mexico approximately 3000 km from the source of the fires.

  14. Time Centrality in Dynamic Complex Networks

    E-Print Network [OSTI]

    Costa, Eduardo Chinelate; Wehmuth, Klaus; Ziviani, Artur; da Silva, Ana Paula Couto

    2015-01-01T23:59:59.000Z

    There is an ever-increasing interest in investigating dynamics in time-varying graphs (TVGs). So far, however, the notion of centrality in TVG scenarios usually refers to metrics that assess the relative importance of nodes along the temporal evolution of the network. Nevertheless, for some TVG scenarios, more important than identifying the central nodes under a given definition is identifying the \\emph{key time instants} for taking certain actions. In this paper, we introduce the notion of \\emph{time centrality} in TVGs. Analogously to node centrality, time centrality evaluates the relative importance of time instants in dynamic complex networks. We present two time centrality metrics related to diffusion processes. We evaluate the two defined metrics using a real-world dataset representing a in-person contact dynamic network. We validate the concept of time centrality showing that diffusion starting at the best classified time instants (i.e. the most central ones), according to our metrics, can perform a fa...

  15. Universidad Central de Venezuela Facultad de Ciencias

    E-Print Network [OSTI]

    Coto, Ernesto

    Universidad Central de Venezuela Facultad de Ciencias Escuela de Computación Lecturas en Ciencias ecoto@strix.ciens.ucv.ve ecoto@opalo.ciens.ucv.ve Universidad Central de Venezuela. Facultad de Ciencias. Escuela de Computación. Laboratorio de Computación Gráfica (LCG) Venezuela. Caracas Apdo. 47002, 1041-A ND

  16. Universidad Central de Venezuela Facultad de Ciencias

    E-Print Network [OSTI]

    Coto, Ernesto

    Universidad Central de Venezuela Facultad de Ciencias Escuela de Computación Lecturas en Ciencias ecoto@strix.ciens.ucv.ve ecoto@opalo.ciens.ucv.ve Universidad Central de Venezuela. Facultad de Ciencias. Escuela de Computación. Laboratorio de Computación Gráfica (LCG) Venezuela. Caracas Apdo. 47002, 1041-A

  17. Universidad Central de Venezuela Facultad de Ciencias

    E-Print Network [OSTI]

    Coto, Ernesto

    Universidad Central de Venezuela Facultad de Ciencias Escuela de Computación Lecturas en Ciencias Construcción de Algoritmos Ernesto Coto ecoto@strix.ciens.ucv.ve Universidad Central de Venezuela. Facultad de Ciencias. Escuela de Computación. Laboratorio de Computación Gráfica (LCG) Venezuela. Caracas Apdo. 47002

  18. Universidad Central de Venezuela Facultad de Ciencias

    E-Print Network [OSTI]

    Coto, Ernesto

    Universidad Central de Venezuela Facultad de Ciencias Escuela de Computación Lecturas en Ciencias@opalo.ciens.ucv.ve Universidad Central de Venezuela. Facultad de Ciencias. Escuela de Computación. Laboratorio de Computación Gráfica (LCG) Venezuela. Caracas Apdo. 47002, 1041-A. ND 2003-02 Resumen Los grafos son solo abstracciones

  19. Late Quaternary slip rates across the central Tien Shan, Kyrgyzstan, central Asia

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Late Quaternary slip rates across the central Tien Shan, Kyrgyzstan, central Asia Stephen C, Quaternary, river terrace, Kyrgyzstan Citation: Thompson, S. C., R. J. Weldon, C. M. Rubin, K. Abdrakhmatov, P. Molnar, and G. W. Berger, Late Quaternary slip rates across the central Tien Shan, Kyrgyzstan

  20. Central and non-central limit theorems for weighted power variations of fractional Brownian motion

    E-Print Network [OSTI]

    Nourdin, Ivan; Nualart, David; Tudor, Ciprian A.

    2010-10-01T23:59:59.000Z

    n this paper, we prove some central and non-central limit theorems for renormalized weighted power variations of order q?2 of the fractional Brownian motion with Hurst parameter H?(0, 1), where q is an integer. The central limit holds for 1/2q

  1. Waste receiving and processing plant control system; system design description

    SciTech Connect (OSTI)

    LANE, M.P.

    1999-02-24T23:59:59.000Z

    The Plant Control System (PCS) is a heterogeneous computer system composed of numerous sub-systems. The PCS represents every major computer system that is used to support operation of the Waste Receiving and Processing (WRAP) facility. This document, the System Design Description (PCS SDD), includes several chapters and appendices. Each chapter is devoted to a separate PCS sub-system. Typically, each chapter includes an overview description of the system, a list of associated documents related to operation of that system, and a detailed description of relevant system features. Each appendice provides configuration information for selected PCS sub-systems. The appendices are designed as separate sections to assist in maintaining this document due to frequent changes in system configurations. This document is intended to serve as the primary reference for configuration of PCS computer systems. The use of this document is further described in the WRAP System Configuration Management Plan, WMH-350, Section 4.1.

  2. Carbon Characterization Laboratory Readiness to Receive Irradiated Graphite Samples

    SciTech Connect (OSTI)

    Karen A. Moore

    2011-05-01T23:59:59.000Z

    The Carbon Characterization Laboratory (CCL) is located in Labs C19 and C20 of the Idaho National Laboratory Research Center. The CCL was established under the Next Generation Nuclear Plant Project to support graphite and ceramic composite research and development activities. The research conducted in this laboratory will support the Advanced Graphite Creep experiments—a major series of material irradiation experiments within the Next Generation Nuclear Plant Graphite program. The CCL is designed to characterize and test low activated irradiated materials such as high purity graphite, carbon-carbon composites, silicon-carbide composite, and ceramic materials. The laboratory is fully capable of characterizing material properties for both irradiated and nonirradiated materials. Major infrastructural modifications were undertaken to support this new radiological facility at Idaho National Laboratory. Facility modifications are complete, equipment has been installed, radiological controls and operating procedures have been established and work management documents have been created to place the CCL in readiness to receive irradiated graphite samples.

  3. Central Micronics Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation inOpenadd: China DatangCentral El tricaCentralCentral

  4. Radio-transparent multi-layer insulation for radiowave receivers

    SciTech Connect (OSTI)

    Choi, J. [Korea University, Anam-dong Seongbuk-gu, Seoul 136-713 (Korea, Republic of)] [Korea University, Anam-dong Seongbuk-gu, Seoul 136-713 (Korea, Republic of); Ishitsuka, H. [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan)] [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan); Mima, S. [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)] [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Oguri, S., E-mail: shugo@post.kek.jp [Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801 (Japan); Takahashi, K. [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan) [Terahertz Sensing and Imaging Team, Terahertz-wave Research Group, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Department of Physics, Tohoku University, Sendai, Miyagi 980-8578 (Japan); Tajima, O. [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan) [Department of Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Shonan Village, Hayama, Kanagawa 240-0193 (Japan); Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801 (Japan)

    2013-11-15T23:59:59.000Z

    In the field of radiowave detection, enlarging the receiver aperture to enhance the amount of light detected is essential for greater scientific achievements. One challenge in using radio transmittable apertures is keeping the detectors cool. This is because transparency to thermal radiation above the radio frequency range increases the thermal load. In shielding from thermal radiation, a general strategy is to install thermal filters in the light path between aperture and detectors. However, there is difficulty in fabricating metal mesh filters of large diameters. It is also difficult to maintain large diameter absorptive-type filters in cold because of their limited thermal conductance. A technology that maintains cold conditions while allowing larger apertures has been long-awaited. We propose radio-transparent multi-layer insulation (RT-MLI) composed from a set of stacked insulating layers. The insulator is transparent to radio frequencies, but not transparent to infrared radiation. The basic idea for cooling is similar to conventional multi-layer insulation. It leads to a reduction in thermal radiation while maintaining a uniform surface temperature. The advantage of this technique over other filter types is that no thermal links are required. As insulator material, we used foamed polystyrene; its low index of refraction makes an anti-reflection coating unnecessary. We measured the basic performance of RT-MLI to confirm that thermal loads are lowered with more layers. We also confirmed that our RT-MLI has high transmittance to radiowaves, but blocks infrared radiation. For example, RT-MLI with 12 layers has a transmittance greater than 95% (lower than 1%) below 200 GHz (above 4 THz). We demonstrated its effects in a system with absorptive-type filters, where aperture diameters were 200 mm. Low temperatures were successfully maintained for the filters. We conclude that this technology significantly enhances the cooling of radiowave receivers, and is particularly suitable for large-aperture systems. This technology is expected to be applicable to various fields, including radio astronomy, geo-environmental assessment, and radar systems.

  5. NERSC User James Drake Receives 2010 APS Maxwell Prize for Plasma...

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

    User James Drake Receives 2010 APS Maxwell Prize for Plasma Physics NERSC User James Drake Receives 2010 APS Maxwell Prize for Plasma Physics January 31, 2011 drake10.jpg Long-time...

  6. Design and validation of an air window for a molten salt solar thermal receiver

    E-Print Network [OSTI]

    Paxson, Adam Taylor

    2009-01-01T23:59:59.000Z

    This thesis contributes to the development of Concentrating Solar Power (CSP) receivers and focuses on the design of an efficient aperture. An air window is proposed for use as the aperture of a CSP molten salt receiver ...

  7. A NEW SOLAR THERMAL RECEIVER UTILIZING A SMALL PARTICLE HEAT EXCHANGER

    E-Print Network [OSTI]

    Hunt, Arlon J.

    2011-01-01T23:59:59.000Z

    Report LBL 8520. ) A NEW SOLAR THERMAL RECEIVER UTILIZING Aenergy. A new type of solar thermal receiver based on thisThe success of the solar thermal electric power program

  8. Solar and Energy Loan Fund Receives $300,000 Community Reinvestment...

    Energy Savers [EERE]

    Solar and Energy Loan Fund Receives 300,000 Community Reinvestment Act Loan to Invest in Home Energy Upgrades Solar and Energy Loan Fund Receives 300,000 Community Reinvestment...

  9. High-Efficiency Low-Cost Solar Receiver for Use in a Supercritical...

    Office of Environmental Management (EM)

    High-Efficiency Low-Cost Solar Receiver for Use in a Supercritical CO2 Recompression Cycle - FY13 Q1 High-Efficiency Low-Cost Solar Receiver for Use in a Supercritical CO2...

  10. Fact #856 January 19, 2015 Plug-in and Hybrid Cars Receive High...

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

    6 January 19, 2015 Plug-in and Hybrid Cars Receive High Scores for Owner Satisfaction Fact 856 January 19, 2015 Plug-in and Hybrid Cars Receive High Scores for Owner Satisfaction...

  11. NREL Particle Receiver Will Enable High-Temperature CSP (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-08-01T23:59:59.000Z

    Near-blackbody enclosed particle receiver can support high-temperature thermal energy storage and high-efficiency power cycles.

  12. Dish Stirling Solar-Receiver Combustor Test Program

    SciTech Connect (OSTI)

    Bankston, C.P.; Back, L.H.

    1981-08-15T23:59:59.000Z

    The overall objectives of the program were to evluate and verify the operational and energy transfer characteristics of the Dish Stirling Solar Receiver (DSSR) combustor/heat exchanger system. The DSSR is designed to operate with fossil fuel augmentation utilizing a swirl combustor and cross flow heat exchanger consisting of a single row of 48 closely spaced tubes that are curved into a conical shape. In the present study the performance of the combustor/heat exchanger system without a Stirling engine has been studied over a range of operating conditions and output levels using water as the working fluid. Results show that the combustor may be started under cold conditions, controlled safely, and operated at a constant air/fuel ratio (10% excess air) over the required range of firing rates. Furthermore, nondimensional heat transfer coefficients based on total heat transfer are plotted versus Reynolds number and compared with literature data taken for single rows of closely spaced tubes perpendicular to cross flow. The data show enhanced heat transfer for the present geometry and test conditions. Analysis of the results shows that the present system will meet specified thermal requirements, thus verifying the feasibility of the DSSR combustor design for final prototype fabrication.

  13. Embedding global barrier and collective in torus network with each node combining input from receivers according to class map for output to senders

    DOE Patents [OSTI]

    Chen, Dong; Coteus, Paul W; Eisley, Noel A; Gara, Alan; Heidelberger, Philip; Senger, Robert M; Salapura, Valentina; Steinmacher-Burow, Burkhard; Sugawara, Yutaka; Takken, Todd E

    2013-08-27T23:59:59.000Z

    Embodiments of the invention provide a method, system and computer program product for embedding a global barrier and global interrupt network in a parallel computer system organized as a torus network. The computer system includes a multitude of nodes. In one embodiment, the method comprises taking inputs from a set of receivers of the nodes, dividing the inputs from the receivers into a plurality of classes, combining the inputs of each of the classes to obtain a result, and sending said result to a set of senders of the nodes. Embodiments of the invention provide a method, system and computer program product for embedding a collective network in a parallel computer system organized as a torus network. In one embodiment, the method comprises adding to a torus network a central collective logic to route messages among at least a group of nodes in a tree structure.

  14. University of Central Florida College of Medicine

    E-Print Network [OSTI]

    Foroosh, Hassan

    1 University of Central Florida College of Medicine 2011-2012 STUDENT FINANCIAL SERVICES GUIDEBOOK M.D. PROGRAM College of Medicine- Office of Student Financial Services Tel: 407.266.1381 or 407................................................................................................................................6 Satisfactory Academic Progress

  15. COMPARATIVE COSTS OF CALIFORNIA CENTRAL STATION ELECTRICITY

    E-Print Network [OSTI]

    CALIFORNIA ENERGY COMMISSION COMPARATIVE COSTS OF CALIFORNIA CENTRAL STATION ELECTRICITY GENERATIONCann Please use the following citation for this report: Klein, Joel. 2009. Comparative Costs of California............................................................................................................................1 Changes in the Cost of Generation Model

  16. Central Georgia EMC- Photovoltaic Rebate Program

    Broader source: Energy.gov [DOE]

    In June 2008, Central Georgia Electric Membership Corporation (CGEMC) began offering a rebate of $450 per kilowatt (kW) to residential members who install photovoltaic (PV) systems that are...

  17. Central Energy Systems - Applications to Economic Development

    E-Print Network [OSTI]

    Myers, M. S.; Diserens, S. E.

    1985-01-01T23:59:59.000Z

    the conceptual stage of design. The second program, Central Energy Systems Analysis Program (CESAP) analyzes energy efficiency for a group of buildings and determines if a new district heating and cooling (DHC) system would be a cost effective application...

  18. Central Storage for Unsealed Radioactive Materials

    E-Print Network [OSTI]

    Pawlowski, Wojtek

    Central Storage for Unsealed Radioactive Materials Radiation Safety Form PERMIT HOLDER NAME:______________________________ PHONE #: ____________________________ ADDRESS/DEPT.: _______________________________ Storage Location: Refrigerator Freezer Dry Storage List each item being transferred to storage separately: EH&S LAB WIPE SURVEY

  19. Central Station DHC Phase 1 feasibility

    SciTech Connect (OSTI)

    Henderson, H.L.

    1992-03-01T23:59:59.000Z

    This project assisted a private real estate developer in technically assessing the feasibility of integrating a central DHC system into a proposed 72 acre area mixed-use Planned Development (Central Station) just south of the Chicago Central Business District (Loop). The technical assessment concluded that a district heating and cooling system for Central Station will be feasible, provided that a major anchor load can be connected to the system. The system conceived for the site employs a modular approach that adjusts production capacity to actual load growth. The design concept includes gas-fired boilers for heating, gas turbine driven chillers for base loading, electric motor driven chillers for peaking, steam turbines for peak power and back pressure operation, and chilled water storage. Energy will be supplied to the users in the form of steam or low temperature hot water for heating, and low temperature chilled water for cooling.

  20. Distributed vs. Centralized Power Systems Frequency Control

    E-Print Network [OSTI]

    Dimarogonas, Dimos

    Distributed vs. Centralized Power Systems Frequency Control Martin Andreasson12 , Dimos V control of electrical power systems. We propose a distributed controller which retains the reference class of large- scale systems are electrical power systems, which employ automatic generation control

  1. Solidere : the battle for Beirut's Central District

    E-Print Network [OSTI]

    Mango, Tamam, 1981-

    2004-01-01T23:59:59.000Z

    The Beirut Central District was destroyed during the Lebanese Civil War which extended from 1975 to 1990. Unable to reconstruct the center itself, the Lebanese government turned to a private Real Estate Holding Company ...

  2. Central Moloney: Noncompliance Determination (2013-SE-4702)

    Broader source: Energy.gov [DOE]

    DOE issued a Notice of Noncompliance Determination to Central Moloney, Inc. finding that liquid-immersed distribution transformer basic models 30300150 and 32500095 do not comport with the energy conservation standards.

  3. Central Moloney: Proposed Penalty (2013-SE-4702)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Central Moloney, Inc. manufactured and distributed a variety of noncompliant liquid-immersed distribution transformers in the U.S.

  4. Diversity Performance of a Practical Non-Coherent Detect-and-Forward Receiver

    E-Print Network [OSTI]

    Gaithersburg, Maryland, USA Abstract--We propose a non-coherent receiver for the fixed detect-and-forward relay, and the gap from full diversity is quantified. While the general receiver depends on the source-relay channel of the source-destination channel are known. The receiver is derived using the generalized likelihood ratio test

  5. A Low-Power Correlation Detector For Binary FSK Direct-Conversion Receivers

    E-Print Network [OSTI]

    Arslan, Hüseyin

    A Low-Power Correlation Detector For Binary FSK Direct-Conversion Receivers J. Min, H-C. Liu, A detector, Tone detection, Correlation, Direct-conversion wireless receivers Abstract A multiplierless-suited for low-power direct-conversion receivers used in wireless communications systems employ- ing FSK

  6. Sequence Optimization-based UWB Receiver Jihad Ibrahim, Rekha Menon, and Dr. R.M. Buehrer

    E-Print Network [OSTI]

    Southern California, University of

    Sequence Optimization-based UWB Receiver Jihad Ibrahim, Rekha Menon, and Dr. R.M. Buehrer Sponsored transmit pulse shape Proposed Receiver Transmit Sequence X Channel Receiver Sequence- Correlator Y UWB · Objective: Maximize SNR · Optimal transmit sequence X solves: H is the channel matrix · Optimal X

  7. Efficient MIMO-OFDM Schemes for Future Terrestrial Digital TV with Unequal Received

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    .nasser@insa-rennes.fr Abstract- This article investigates the effect of equal and unequal received powers on the performances- orthogonal schemes: the BLAST scheme, the Linear Dispersion (LD) code and the Golden code, and we compare for modelling the effect of unequal received powers on different receiving antennas. Therefore, we analyze

  8. Line-focus solar central power system, Phase I. Final report, 29 September 1978 to 30 April 1980. Volume II. Text

    SciTech Connect (OSTI)

    Slemmons, A J

    1980-04-01T23:59:59.000Z

    The conceptual design, parametric analysis, cost and performance analysis, and a commercial assessment of a 100-MWe high-temperature line-focus central power system are presented. Parametric analyses and conceptual design of the heliostat subsystem, receiver subsystem, heat transport subsystem, energy storage subsystem, electrical power generating subsystem, and master control subsystem are included. A market analysis and development plan are given. (WHK)

  9. We schedule your job when we receive this completed request form. You then receive a JOB CONFIRMATION which will include job number, copy due date and job checklist.

    E-Print Network [OSTI]

    Sheridan, Jennifer

    We schedule your job when we receive this completed request form. You then receive a JOB CONFIRMATION which will include job number, copy due date and job checklist. JOB NAME Date Form Submitted pages) Copy to come by due date note due date on Job Confirmation Mini Catalog (12-24 pages) PROVIDE

  10. Four Central Air Conditioners Determined Noncompliant With Energy...

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

    Four Central Air Conditioners Determined Noncompliant With Energy Efficiency Standard Four Central Air Conditioners Determined Noncompliant With Energy Efficiency Standard October...

  11. Enforcement Policy Statement: Off Mode Standards for Central...

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

    Enforcement Policy Statement: Off Mode Standards for Central Air Conditioners and Central Air Conditioning Heat Pumps July 8, 2014 On June 27, 2011, the Department of Energy (DOE)...

  12. Modeling-Computer Simulations At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Modeling-Computer Simulations At Central Nevada Seismic Zone Region (Biasi, Et Al., 2009) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region...

  13. South Central Indiana REMC- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    South Central Indiana REMC, a Touchstone Energy Partner, offers incentives for residential customers to save energy in participating homes. Rebates are available for central air conditioning...

  14. Geodetic Survey At Central Nevada Seismic Zone Region (Blewitt...

    Open Energy Info (EERE)

    ENERGYGeothermal Home Exploration Activity: Geodetic Survey At Central Nevada Seismic Zone Region (Blewitt Et Al, 2005) Exploration Activity Details Location Central...

  15. Compound and Elemental Analysis At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Central Nevada Seismic Zone Region (Laney, 2005) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Compound and Elemental...

  16. Refraction Survey At Central Nevada Seismic Zone Region (Heimgartner...

    Open Energy Info (EERE)

    Central Nevada Seismic Zone Region (Heimgartner, Et Al., 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Refraction Survey At Central...

  17. aplicacion cafeteria central: Topics by E-print Network

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

    Distribuidos y Aplicaciones Mdicas 89 Escuela de Computacin Universidad Central de Venezuela UCV Computer Technologies and Information Sciences Websites Summary: Central de...

  18. Solar cogeneration: Cimarron River station, Central Telephone and Utilities-Western Power

    SciTech Connect (OSTI)

    Harder, J.E.

    1981-04-01T23:59:59.000Z

    The site-specific conceptual design progress is described for a solar central receiver cogeneration facility at a Kansas utility. The process is described which led to the selection of the preferred solar cogeneration facility. The status of the conceptual design is presented. The evaluation of system performance is described. A test program is described that is to determine the magnitude of impact that local environmental factors have on collector system performance and to measure the direct normal insolation at the cogeneration facility site. The system specification is appended. (LEW)

  19. Geochronologic and Thermobarometric Constraints on the Evolution of the Main Central Thrust, central Nepal Himalaya

    E-Print Network [OSTI]

    Harrison, Mark

    , central Nepal Himalaya E.J. Catlos1 , T. Mark Harrison1 , Matthew J. Kohn2 , Marty Grove1 , F.J. Ryerson3. 4. Department of Geology, Tri-Chandra Campus, Tribhuvan University, Kathmandu, Nepal. Journal sampled along the Marysandi River and Darondi Khola in the Annapurna region of central Nepal show striking

  20. HANFORD SITE CENTRAL PLATEAU CLEANUP COMPLETION STRATEGY

    SciTech Connect (OSTI)

    BERGMAN TB

    2011-01-14T23:59:59.000Z

    Cleanup of the Hanford Site is a complex and challenging undertaking. The U.S. Department of Energy (DOE) has developed a comprehensive vision for completing Hanford's cleanup mission including transition to post-cleanup activities. This vision includes 3 principle components of cleanup: the {approx}200 square miles ofland adjacent to the Columbia River, known as the River Corridor; the 75 square miles of land in the center of the Hanford Site, where the majority of the reprocessing and waste management activities have occurred, known as the Central Plateau; and the stored reprocessing wastes in the Central Plateau, the Tank Wastes. Cleanup of the River Corridor is well underway and is progressing towards completion of most cleanup actions by 2015. Tank waste cleanup is progressing on a longer schedule due to the complexity of the mission, with construction of the largest nuclear construction project in the United States, the Waste Treatment Plant, over 50% complete. With the progress on the River Corridor and Tank Waste, it is time to place increased emphasis on moving forward with cleanup of the Central Plateau. Cleanup of the Hanford Site has been proceeding under a framework defmed in the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement). In early 2009, the DOE, the State of Washington Department of Ecology, and the U.S. Environmental Protection Agency signed an Agreement in Principle in which the parties recognized the need to develop a more comprehensive strategy for cleanup of the Central Plateau. DOE agreed to develop a Central Plateau Cleanup Completion Strategy as a starting point for discussions. This DOE Strategy was the basis for negotiations between the Parties, discussions with the State of Oregon, the Hanford Advisory Board, and other Stakeholder groups (including open public meetings), and consultation with the Tribal Nations. The change packages to incorporate the Central Plateau Cleanup Completion Strategy were signed by the Parties on October 26,2010, and are now in the process of being implemented.

  1. Morphology of AGN in the central kiloparsec

    E-Print Network [OSTI]

    Paul Martini

    2001-07-11T23:59:59.000Z

    Hubble Space Telescope observations of the central kiloparsec of AGN have revealed a wealth of structure, particularly nuclear bars and spirals, that are distinct from analogous features in the disks of spiral galaxies. WFPC2 and NICMOS images of a large sample of AGN observed at high spatial resolution make it possible to quantify the frequency and detailed properties of these structures. Nearly all AGN have nuclear spiral dust lanes in the central kiloparsec, while only a small minority contain nuclear bars. If these nuclear dust spirals trace shocks in the circumnuclear, gaseous disks, they may dissipate sufficient angular momentum to fuel the active nucleus.

  2. Central Activator Keeps the Circadian Clock Ticking

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i t z C oCNMSStaff Highlight NinaCentersCentralCentral

  3. Central Bank of India | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation inOpenadd: China Datang CorporationCenterCentraisCentralCentral

  4. Central Iowa Power Cooperative | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation inOpenadd: China DatangCentral El tricaCentral Georgia

  5. Central Sun SL | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation inOpenadd: China DatangCentral ElCentral Montana E

  6. Degradation of parabolic-cylindrical solar collector performance: receiver misalignments and tracking inaccuracies

    SciTech Connect (OSTI)

    Ratzel, A.C.

    1986-01-01T23:59:59.000Z

    Studies were conducted to determine the performance of a 2-m, 90/sup 0/ E-W oriented solar reflector trough and a receiver assembly consisting of a receiver tube surrounded by a concentric outer glass envelope. Three receiver tube diameters (2.223, 2.54, and 3.175 cm o.d. tubes) were analyzed subject to a variety of collector errors including receiver misalignments and tracking bias, to assess the detrimental effects of these problems. Of the possible problems considered, it was shown that a misalignment of the receiver assembly above the focal plane is most critical, since the absorbed solar fluxes are concentrated near the base of the tube, leading to possible ''hot spots.'' In addition, as a result of this work, it was shown that the intermediate receiver tube size (2.54 cm o.d.) should be used with the 2-m reflector trough, so long as small errors and misalignments are expected.

  7. 10-MWe solar-thermal central-receiver pilot plant, solar-facilities design integration: plant-support subsystem procurement documentation (RADL Item 7-44D)

    SciTech Connect (OSTI)

    Not Available

    1980-09-01T23:59:59.000Z

    Purchase specifications are given for the specific long lead items to be procured for the 10 MWe Solar Pilot Plant. The hardware is grouped into two categories: 480 Volt Load Center and 480 Volt Motor Control Centers; and Power, Control and Instrumentation Cable. The purchase orders for each procurement are included. Need dates for each item are identified. (LEW)

  8. Six area firms receive ORNL small business awards | ornl.gov

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

    National Laboratory Communications 865.574.4399 Six area firms receive ORNL small business awards OAK RIDGE, Tenn., March 14, 2014 -- Six East Tennessee firms doing business...

  9. Thermal stress analysis of eccentric tube receiver using concentrated solar radiation

    SciTech Connect (OSTI)

    Wang, Fuqiang; Shuai, Yong; Yuan, Yuan; Yang, Guo; Tan, Heping [School of Energy Science and Engineering, Harbin Institute of Technology, 92, West Dazhi Street, Harbin 150001 (China)

    2010-10-15T23:59:59.000Z

    In the parabolic trough concentrator with tube receiver system, the heat transfer fluid flowing through the tube receiver can induce high thermal stress and deflection. In this study, the eccentric tube receiver is introduced with the aim to reduce the thermal stresses of tube receiver. The ray-thermal-structural sequential coupled numerical analyses are adopted to obtain the concentrated heat flux distributions, temperature distributions and thermal stress fields of both the eccentric and concentric tube receivers. During the sequential coupled numerical analyses, the concentrated heat flux distribution on the bottom half periphery of tube receiver is obtained by Monte-Carlo ray tracing method, and the fitting function method is introduced for the calculated heat flux distribution transformation from the Monte-Carlo ray tracing model to the CFD analysis model. The temperature distributions and thermal stress fields are obtained by the CFD and FEA analyses, respectively. The effects of eccentricity and oriented angle variation on the thermal stresses of eccentric tube receiver are also investigated. It is recommended to adopt the eccentric tube receiver with optimum eccentricity and 90 oriented angle as tube receiver for the parabolic trough concentrator system to reduce the thermal stresses. (author)

  10. Small-Particle Solar Receiver for High-Temperature Brayton Power...

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

    Receiver for High-Temperature Brayton Power Cycles This fact sheet describes a scattering solar thermal concentrators project awarded under the DOE's 2012 SunShot Concentrating...

  11. His Own Received Him Not: Jimmy Carter, the Religious Right, and the

    E-Print Network [OSTI]

    Sibille, Etienne

    His Own Received Him Not: Jimmy Carter, the Religious Right, and the 1980 Presidential Election recently, Redeemer: The Life of Jimmy Carter. Randall Balmer LECTURE COLLOQUIUM RELIGIOUS STUDIES

  12. Covered Product Category: Residential Central Air Conditioners

    Broader source: Energy.gov [DOE]

    FEMP provides acquisition guidance across a variety of product categories, including residential central air conditioners (CACs), which are an ENERGY STAR®-qualified product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

  13. 500-kV Central Ferry Substation ...

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

    Substation Y Y Central Ferry Substation T u c a n n o n R i v e r S n a k e R i v e r 12 U V 127 U V 127 U V 260 U V 261 12 Starbuck Starbuck W h i t m a n W h i t m a...

  14. Cloud Computing: Centralization and Data Sovereignty

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Cloud Computing: Centralization and Data Sovereignty Primavera De Filippi, Smari McCarthy Abstract: Cloud computing can be defined as the provision of computing resources on-demand over and elasticity of costs, problems arise concerning the collection of personal information in the Cloud

  15. Cloud Computing: Legal Issues in Centralized Architectures

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Cloud Computing: Legal Issues in Centralized Architectures Primavera DE FILIPPI1 , Smari McCARTHY2, Reykjavik, 101, Iceland - Email: smari@gmail.com Abstract: Cloud computing can be defined as the provision they can access their data and the extent to which parties can exploit it. Keywords: Cloud Computing

  16. Universidad Central de Venezuela Facultad de Ciencias

    E-Print Network [OSTI]

    Astudillo, Reinaldo

    Universidad Central de Venezuela Facultad de Ciencias Escuela de Computación Lecturas en Ciencias) for some E Cn�n with E Venezuela Venezuela, Centro de C´alculo Cient´ifico y Tecnol´ogico, (zenaida.castillo@ciens.ucv.ve). 1 #12;2 R

  17. Perturbation centrality: a novel centrality measure obtained by the general network dynamics tool, Turbine

    E-Print Network [OSTI]

    Szalay, Kristof Z

    2013-01-01T23:59:59.000Z

    Analysis of network dynamics became increasingly important to understand the mechanisms and consequences of changes in biological systems from macromolecules to cells and organisms. Currently available network dynamics tools are mostly tailored for specific tasks such as calculation of molecular or neural dynamics. Our Turbine software offers a generic framework enabling the simulation of any algorithmically definable dynamics of any network. Turbine is also optimized for handling very large networks in the range of millions of nodes and edges. Using a perturbation transmission model inspired by communicating vessels, here we introduce a novel centrality measure termed as perturbation centrality. Perturbation centrality is the reciprocal of the time needed to dissipate a starting perturbation in the network. Hubs and inter-modular nodes proved to be highly efficient in perturbation propagation. High perturbation centrality nodes of the Met-tRNA synthetase protein structure network were identified as amino aci...

  18. Spring 2011 ODS Director Paul Coates Receives Award from American Society for Nutrition

    E-Print Network [OSTI]

    Bandettini, Peter A.

    Spring 2011 ODS Director Paul Coates Receives Award from American Society for Nutrition The Office of Dietary Supplements (ODS) Director Paul Coates is the 2011 recipient of the Conrad A. Elvehjem Award received the award at the annual meeting of the society on April 10. In addition to directing ODS, Dr

  19. A Reconfigurable Active Retrodirective/Direct Conversion Receiver Array for Wireless Sensor Systems

    E-Print Network [OSTI]

    Itoh, Tatsuo

    of California, Los Angeles 405 Hilgard Ave., Los Angeles, CA 90095 Abstract -- A reconfigurable active time. In a retrodirective system, the communication link between the transponder and base station can (a), the array system works as a direct conversion receiver and stores data received from remote

  20. Impact of Transmit Power Control and Receiver Association on Interweave Network Interference

    E-Print Network [OSTI]

    Tellambura, Chintha

    Impact of Transmit Power Control and Receiver Association on Interweave Network Interference S power control and receiver association schemes. For this purpose, secondary transmitter nodes, a per-user transmit power control scheme is considered in which the transmit power is based

  1. Thermal performance simulation of a solar cavity receiver under windy conditions

    SciTech Connect (OSTI)

    Fang, J.B.; Wei, J.J.; Dong, X.W.; Wang, Y.S. [State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049 (China)

    2011-01-15T23:59:59.000Z

    Solar cavity receiver plays a dominant role in the light-heat conversion. Its performance can directly affect the efficiency of the whole power generation system. A combined calculation method for evaluating the thermal performance of the solar cavity receiver is raised in this paper. This method couples the Monte-Carlo method, the correlations of the flow boiling heat transfer, and the calculation of air flow field. And this method can ultimately figure out the surface heat flux inside the cavity, the wall temperature of the boiling tubes, and the heat loss of the solar receiver with an iterative solution. With this method, the thermal performance of a solar cavity receiver, a saturated steam receiver, is simulated under different wind environments. The highest wall temperature of the boiling tubes is about 150 C higher than the water saturation temperature. And it appears in the upper middle parts of the absorbing panels. Changing the wind angle or velocity can obviously affect the air velocity inside the receiver. The air velocity reaches the maximum value when the wind comes from the side of the receiver (flow angle {alpha} = 90 ). The heat loss of the solar cavity receiver also reaches a maximum for the side-on wind. (author)

  2. Green's function retrieval from reflection data, in absence of a receiver at the virtual source position

    E-Print Network [OSTI]

    Snieder, Roel

    Green's function retrieval from reflection data, in absence of a receiver at the virtual source; accepted 6 March 2014) The methodology of Green's function retrieval by cross-correlation has led to many, a virtual source is created at the position of a receiver. Here a method is discussed for Green's function

  3. AMMONIA RECEIVER DESIGN FOR A 500m2 Rebecca Dunn, Keith Lovegrove, and Greg Burgess

    E-Print Network [OSTI]

    decomposition of ammonia to store solar energy. Ammonia passes alternately between energy-storing (dissociationAMMONIA RECEIVER DESIGN FOR A 500m2 DISH Rebecca Dunn, Keith Lovegrove, and Greg Burgess Solar 0200, Australia. Phone: +61 2 6125 4046. rebecca.dunn@anu.edu.au Abstract Previous ammonia receiver

  4. Design of a High Temperature Small Particle Solar Receiver for Powering a Gas Turbine Engine

    E-Print Network [OSTI]

    Ponce, V. Miguel

    Design of a High Temperature Small Particle Solar Receiver for Powering a Gas Turbine Engine Dr will describe the design of a high temperature solar receiver capable of driving a gas turbine for power conclusions regarding the best way to operate a solar powered gas turbine have been obtained

  5. LNA and Mixer Designs for Multi-Band Receiver Front-Ends

    E-Print Network [OSTI]

    Poobuapheun, Nuntachai

    2009-01-01T23:59:59.000Z

    15mW, 70kHz 1/f Corner Direct Conversion CMOS Receiver,” inA +78 dBm IIP2 CMOS Direct Conversion Mixer for FullyC. Hull, et al. , “A Direct-Conversion Receiver for 900MHz (

  6. Power Control Algorithms for MMSE Receivers in CDMA Systems Yong Liu and Tan F. Wong

    E-Print Network [OSTI]

    Wong, Tan F.

    , we describe the system model. Power control al- gorithms for the MMSE receiver are introducedPower Control Algorithms for MMSE Receivers in CDMA Systems Yong Liu and Tan F. Wong Department system. The objective of power control is to guaran- tee that certain signal-to-interference ratio (SIR

  7. Kalman filter based MMSE receiver for the DS-CDMA system in a Rayleigh fading channel

    E-Print Network [OSTI]

    Hassan, Khursheed

    2000-01-01T23:59:59.000Z

    and the receiver, the channel is modeled as a fading channel. Fading affects the transmitted signal by changing its amplitude and phase. This in turn plays havoc with the detector. The receiver not only makes wrong decisions about the transmitted bits (because...

  8. Centralized and Decentralized Control for Demand Response

    SciTech Connect (OSTI)

    Lu, Shuai; Samaan, Nader A.; Diao, Ruisheng; Elizondo, Marcelo A.; Jin, Chunlian; Mayhorn, Ebony T.; Zhang, Yu; Kirkham, Harold

    2011-04-29T23:59:59.000Z

    Demand response has been recognized as an essential element of the smart grid. Frequency response, regulation and contingency reserve functions performed traditionally by generation resources are now starting to involve demand side resources. Additional benefits from demand response include peak reduction and load shifting, which will defer new infrastructure investment and improve generator operation efficiency. Technical approaches designed to realize these functionalities can be categorized into centralized control and decentralized control, depending on where the response decision is made. This paper discusses these two control philosophies and compares their relative advantages and disadvantages in terms of delay time, predictability, complexity, and reliability. A distribution system model with detailed household loads and controls is built to demonstrate the characteristics of the two approaches. The conclusion is that the promptness and reliability of decentralized control should be combined with the predictability and simplicity of centralized control to achieve the best performance of the smart grid.

  9. Entanglement Entropy at Large Central Charge

    E-Print Network [OSTI]

    Thomas Hartman

    2013-03-27T23:59:59.000Z

    Two-dimensional conformal field theories with a large central charge and a small number of low-dimension operators are studied using the conformal block expansion. A universal formula is derived for the Renyi entropies of N disjoint intervals in the ground state, valid to all orders in a series expansion. This is possible because the full perturbative answer in this regime comes from the exchange of the stress tensor and other descendants of the vacuum state. Therefore, the Renyi entropy is related to the Virasoro vacuum block at large central charge. The entanglement entropy, computed from the Renyi entropy by an analytic continuation, decouples into a sum of single-interval entanglements. This field theory result agrees with the Ryu-Takayanagi formula for the holographic entanglement entropy of a 2d CFT, applied to any number of intervals, and thus can be interpreted as a microscopic calculation of the area of minimal surfaces in 3d gravity.

  10. Iowa Central Quality Fuel Testing Laboratory

    SciTech Connect (OSTI)

    Heach, Don; Bidieman, Julaine

    2013-09-30T23:59:59.000Z

    The objective of this project is to finalize the creation of an independent quality fuel testing laboratory on the campus of Iowa Central Community College in Fort Dodge, Iowa that shall provide the exploding biofuels industry a timely and cost-effective centrally located laboratory to complete all state and federal fuel and related tests that are required. The recipient shall work with various state regulatory agencies, biofuel companies and state and national industry associations to ensure that training and testing needs of their members and American consumers are met. The recipient shall work with the Iowa Department of Ag and Land Stewardship on the development of an Iowa Biofuel Quality Standard along with the Development of a standard that can be used throughout industry.

  11. PERMIT OR PREREQUISITE OVERRIDE REQUEST FORM Request a PERMIT if you receive a "Permit Required" message when registering.

    E-Print Network [OSTI]

    Gaucher, Eric

    " message when registering. Request a PREREQ OVERRIDE if you receive a "Preq & Test Score Error" message

  12. The NSTX Central Instrumentation and Control System

    SciTech Connect (OSTI)

    G. Oliaro; J. Dong; K. Tindall; P. Sichta

    1999-12-17T23:59:59.000Z

    Earlier this year the National Spherical Torus Experiment (NSTX) at the Princeton Plasma Physics Laboratory achieved ''first plasma''. The Central Instrumentation and Control System was used to support plasma operations. Major elements of the system include the Process Control System, Plasma Control System, Network System, Data Acquisition System, and Synchronization System. This paper will focus on the Process Control System. Topics include the architecture, hardware interface, operator interface, data management, and system performance.

  13. West Central Texas Regional Transportation Final Report

    E-Print Network [OSTI]

    West Central Texas Council of Governments

    "Best Practice" Approach with Respect to Medical Transportation Program. The Medical Transportation Program is the outstanding example of successful recent regional coordination in West Central Texas. Recommendation # 1 - Coordinated... trips. CARR provides a significant level of demand response service within Brown County to Brownwood. Service is provided to other communities in Brown County such as Bangs, May, Rising Star and Zephyr. No service is provided to Abilene. No human...

  14. andes centrales del: Topics by E-print Network

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

    Geosciences Websites Summary: Pedagogica Experimental Libertador, Caracas, Venezuela Received 15 December 2004 Available online 6; Paleoclimatology; Holocene;...

  15. DOE South Central Ohio Regional Science Bowl | Department of...

    Office of Environmental Management (EM)

    South Central Ohio Regional Science Bowl DOE South Central Ohio Regional Science Bowl March 13, 2015 8:00AM to 8:00PM EDT Shawnee State University, 940 Second Street, Portsmouth,...

  16. SECTION 571 WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA

    E-Print Network [OSTI]

    US Army Corps of Engineers

    SECTION 571 ­ WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA MODEL AGREEMENT FOR DESIGN to be developed for providing environmental assistance to non-Federal interests in central West Virginia pursuant

  17. SECTION 571 WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA

    E-Print Network [OSTI]

    US Army Corps of Engineers

    SECTION 571 ­ WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA MODEL AGREEMENT FOR DESIGN ASSISTANCE assistance to non-Federal interests in central West Virginia pursuant to Section 571 of the Water Resources

  18. SECTION 571 WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA

    E-Print Network [OSTI]

    US Army Corps of Engineers

    SECTION 571 ­ WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA MODEL AGREEMENT FOR DESIGN-Federal interests in central West Virginia pursuant to Section 571 of the Water Resources Development Act of 1999

  19. SECTION 571 WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA

    E-Print Network [OSTI]

    US Army Corps of Engineers

    SECTION 571 ­ WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA MODEL AGREEMENT FOR CONSTRUCTION environmental assistance to non-Federal interests in central West Virginia pursuant to Section 571 of the Water

  20. SECTION 571 WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA

    E-Print Network [OSTI]

    US Army Corps of Engineers

    SECTION 571 ­ WRDA 1999, AS AMENDED CENTRAL WEST VIRGINIA MODEL AGREEMENT FOR DESIGN ASSISTANCE to be developed for providing environmental assistance to non-Federal interests in central West Virginia pursuant

  1. Central Hudson Gas and Electric (Gas)- Commercial Energy Efficiency Program

    Broader source: Energy.gov [DOE]

    The Business Energy SavingsCentral program is for non-residential gas customers of Central Hudson. This includes businesses, local governments, not-for-profits, private institutions, public and...

  2. Centralized and Distributed Generated Power Systems -A Comparison Approach

    E-Print Network [OSTI]

    White Paper Power Systems Engineering Research Center Empowering Minds to Engineer the Future ElectricCentralized and Distributed Generated Power Systems - A Comparison Approach Future Grid Initiative Energy System #12;Centralized and Distributed Generated Power Systems - A Comparison Approach Prepared

  3. Centralized and Decentralized Generated Power Systems -A Comparison Approach

    E-Print Network [OSTI]

    Electric Energy System #12;Centralized and Distributed Generated Power Systems - A Comparison ApproachCentralized and Decentralized Generated Power Systems - A Comparison Approach Future Grid Initiative White Paper Power Systems Engineering Research Center Empowering Minds to Engineer the Future

  4. Chillicothe High School wins 2015 South Central Ohio Regional...

    Energy Savers [EERE]

    Chillicothe High School wins 2015 South Central Ohio Regional Science Bowl Chillicothe High School wins 2015 South Central Ohio Regional Science Bowl March 13, 2015 - 6:43pm...

  5. Computational neuroanatomy of the central complex of drosophila melanogaster 

    E-Print Network [OSTI]

    Longair, Mark

    2009-01-01T23:59:59.000Z

    In many different insect species the highly conserved neuropil regions known as the central complex or central body complex have been shown to be important in behaviours such as locomotion, visual memory and courtship ...

  6. SECTION 593 WRDA 1999, AS AMENDED CENTRAL NEW MEXICO

    E-Print Network [OSTI]

    US Army Corps of Engineers

    SECTION 593 ­ WRDA 1999, AS AMENDED CENTRAL NEW MEXICO MODEL AGREEMENT FOR DESIGN ASSISTANCE (WORK developed for providing environmental assistance to non-Federal interests in central New Mexico pursuant

  7. Sideband characterization and atmospheric observations with various 340 GHz heterodyne receivers

    SciTech Connect (OSTI)

    Renker, Matthias, E-mail: renker@iap.unibe.ch; Murk, Axel [Institute of Applied Physics, University of Bern, Bern (Switzerland); Rea, Simon P. [STFC Rutherford Appleton Laboratory, Didcot, Oxfordshire (United Kingdom); Emrich, A.; Frisk, U. [OMNISYS Instruments, Västra Frölunda (Sweden)

    2014-08-15T23:59:59.000Z

    This paper describes sideband response measurements and atmospheric observations with a double sideband and two Single Sideband (SSB) receiver prototypes developed for the multi-beam limb sounder instrument stratosphere-troposphere exchange and climate monitor radiometer. We first show an advanced Fourier-Transform Spectroscopy (FTS) method for sideband response and spurious signal characterization. We then present sideband response measurements of the different prototype receivers and we compare the results of the SSB receivers with sideband measurements by injecting a continuous wave signal into the upper and lower sidebands. The receivers were integrated into a total-power radiometer and atmospheric observations were carried out. The observed spectra were compared to forward model spectra to conclude on the sideband characteristics of the different receivers. The two sideband characterization methods show a high degree of agreement for both SSB receivers with various local oscillator settings. The measured sideband response was used to correct the forward model simulations. This improves the agreement with the atmospheric observations and explains spectral features caused by an unbalanced sideband response. The FTS method also allows to quantify the influence of spurious harmonic responses of the receiver.

  8. Suction-recirculation device for stabilizing particle flows within a solar powered solid particle receiver

    DOE Patents [OSTI]

    Kolb, Gregory J. (Albuquerque, NM)

    2012-02-07T23:59:59.000Z

    A suction-recirculation device for stabilizing the flow of a curtain of blackened heat absorption particles falling inside of a solar receiver with an open aperture. The curtain of particles absorbs the concentrated heat from a solar mirror array reflected up to the receiver on a solar power tower. External winds entering the receiver at an oblique angle can destabilize the particle curtain and eject particles. A fan and ductwork is located behind the back wall of the receiver and sucks air out through an array of small holes in the back wall. Any entrained particles are separated out by a conventional cyclone device. Then, the air is recirculated back to the top of the receiver by injecting the recycled air through an array of small holes in the receiver's ceiling and upper aperture front wall. Since internal air is recirculated, heat losses are minimized and high receiver efficiency is maintained. Suction-recirculation velocities in the range of 1-5 m/s are sufficient to stabilize the particle curtain against external wind speeds in excess of 10 m/s.

  9. Geothermometry At Central Nevada Seismic Zone Region (Shevenell...

    Open Energy Info (EERE)

    ENERGYGeothermal Home Exploration Activity: Geothermometry At Central Nevada Seismic Zone Region (Shevenell & De Rocher, 2005) Exploration Activity Details Location...

  10. Central exclusive meson production in the perturbative regime

    SciTech Connect (OSTI)

    Harland-Lang, L. A.; Khoze, V. A. [Department of Physics and Institute for Particle Physics Phenomenology, University of Durham, DH1 3LE (United Kingdom); Ryskin, M. G. [Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, Gatchina, St. Petersburg, 188300 (Russian Federation); Stirling, W. J. [Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge, CB3 0HE (United Kingdom)

    2013-04-15T23:59:59.000Z

    Selected new results on central exclusive production (CEP) processes within the pQCD-based Durham model are discussed.

  11. Method and means of transmitting and receiving broad-band unipolar, ultrasonic pulses for ultrasonic inspection

    DOE Patents [OSTI]

    Thompson, D.O.; Hsu, D.K.

    1993-12-14T23:59:59.000Z

    The invention includes a means and method for transmitting and receiving broadband, unipolar, ultrasonic pulses for ultrasonic inspection. The method comprises generating a generally unipolar ultrasonic stress pulse from a low impedance voltage pulse transmitter along a low impedance electrical pathway to an ultrasonic transducer, and receiving the reflected echo of the pulse by the transducer, converting it to a voltage signal, and passing it through a high impedance electrical pathway to an output. The means utilizes electrical components according to the method. The means and method allow a single transducer to be used in a pulse/echo mode, and facilitates alternatingly transmitting and receiving the broadband, unipolar, ultrasonic pulses. 25 figures.

  12. Method and means of transmitting and receiving broad-band unipolar, ultrasonic pulses for ultrasonic inspection

    DOE Patents [OSTI]

    Thompson, Donald O. (Ames, IA); Hsu, David K. (Ames, IA)

    1993-12-14T23:59:59.000Z

    The invention includes a means and method for transmitting and receiving broadband, unipolar, ultrasonic pulses for ultrasonic inspection. The method comprises generating a generally unipolar ultrasonic stress pulse from a low impedance voltage pulse transmitter along a low impedance electrical pathway to an ultrasonic transducer, and receiving the reflected echo of the pulse by the transducer, converting it to a voltage signal, and passing it through a high impedance electrical pathway to an output. The means utilizes electrical components according to the method. The means and method allow a single transducer to be used in a pulse/echo mode, and facilitates alternatingly transmitting and receiving the broadband, unipolar, ultrasonic pulses.

  13. Development Challenges in the Caribbean and Central America

    E-Print Network [OSTI]

    Richner, Heinz

    Part VII Development Challenges in the Caribbean and Central America: Social Exclusion, Migration in Central America, Mexico, and the Caribbean: Towards a New Research Agenda Maria Angelina Pérez Gutierrez1 25.1 The region The 25 countries2 within the Caribbean and Central American region can be grouped

  14. Teleseismic traveltimes, topography and the lithospheric structure across central Mongolia

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Teleseismic traveltimes, topography and the lithospheric structure across central Mongolia Carole a 1000 km- long, $N-S transect across central Mongolia are used together with topography and gravity data and the lithospheric structure across central Mongolia, Geophys. Res. Lett., 35, L11301, doi:10.1029/2008GL033993. 1

  15. Central exclusive production in the ALICE experiment at the LHC

    E-Print Network [OSTI]

    R. Schicker

    2014-11-04T23:59:59.000Z

    The ALICE experiment at the Large Hadron Collider (LHC) at CERN consists of a central barrel, a muon spectrometer and additional detectors for trigger and event classification purposes. The low transverse momentum threshold of the central barrel gives ALICE a unique opportunity to study the low mass sector of central exclusive production at the LHC.

  16. Central New Mexico Community College Catalog Year 2009-2011

    E-Print Network [OSTI]

    New Mexico, University of

    2011 Central New Mexico Community College Catalog Year 2009-2011 5/31/2011 Transferring from Central New Mexico Community College to the University of New Mexico #12;CNM Course UNM Equivalent://advisement.unm.edu/ The University of New Mexico and Central New Mexico Community College work closely to ease your transition from

  17. Central mass accumulation in nuclear spirals

    E-Print Network [OSTI]

    Witold Maciejewski

    2007-09-25T23:59:59.000Z

    In central regions of non-axisymmetric galaxies high-resolution hydrodynamical simulations indicate spiral shocks, which are capable of transporting gas inwards. The efficiency of transport is lower at smaller radii, therefore instead of all gas dropping onto the galactic centre, a roughly uniform distribution of high-density gas develops in the gaseous nuclear spiral downstream from the shock, and the shear in gas is very low there. These are excellent conditions for star formation. This mechanism is likely to contribute to the process of (pseudo-) bulge formation.

  18. Central Waste Complex (CWC) Waste Analysis Plan

    SciTech Connect (OSTI)

    ELLEFSON, M.D.

    1999-12-01T23:59:59.000Z

    The purpose of this waste analysis plan (WAP) is to document the waste acceptance process, sampling methodologies, analytical techniques, and overall processes that are undertaken for waste accepted for storage at the Central Waste Complex (CWC), which is located in the 200 West Area of the Hanford Facility, Richland, Washington. Because dangerous waste does not include the source, special nuclear, and by-product material components of mixed waste, radionuclides are not within the scope of this documentation. The information on radionuclides is provided only for general knowledge.

  19. Design of a photovoltaic central power station

    SciTech Connect (OSTI)

    Not Available

    1984-02-01T23:59:59.000Z

    Photovoltaic central power station designs have been developed for both high-efficiency flat-panel arrays and two-axis tracking concentrator arrays. Both designs are based on a site adjacent to the Saguaro Power Station of Arizona Public Service. The plants are 100 MW each, made of 5 MW subfields. The site specific designs allow detailed cost estimate for site preparation, installation, and engineering. These designs are summarized and cost estimates analyzed. Provided also are recommendations for future work to reduce system cost for each plant design.

  20. Central Air Conditioning | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube platformBuilding RemovalCSS LetterStateDepartmentAnnounce Results ofCentral Air

  1. Central Activator Keeps the Circadian Clock Ticking

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWPSuccessAlamos Laboratory NastasiPAST EVENTS7SummerResearchCentral

  2. Central Plateau Inner Area Cleanup Principles

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWPSuccessAlamos Laboratory NastasiPASTCentral AirCentral FerryInner

  3. East Central Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A Potential MicrohydroDistrictInformation Ireland)East Central Energy

  4. Central Electric Power Coop | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here.Telluric Survey asWest, NewCenterville, Ohio: EnergyMembershipCentral

  5. Central Maine Power Co | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here.Telluric Survey asWest, NewCenterville, Ohio:FerryIowa Zip:Central

  6. Central Virginia Electric Coop | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here.Telluric Survey asWest, NewCenterville,LincolnshireCentral Virginia

  7. Central Wisconsin Elec Coop | Open Energy Information

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here.Telluric Survey asWest, NewCenterville,LincolnshireCentral

  8. Vestas Central Europe | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDITCalifornia Sector:ShreniksourceVentower IndustriesVestas Central

  9. Central Activator Keeps the Circadian Clock Ticking

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i t z C oCNMSStaff Highlight NinaCenters EnergyCentral

  10. Central Activator Keeps the Circadian Clock Ticking

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i t z C oCNMSStaff Highlight NinaCentersCentral Activator

  11. Central Activator Keeps the Circadian Clock Ticking

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i t z C oCNMSStaff Highlight NinaCentersCentral

  12. Central Alabama Electric Coop | Open Energy Information

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation inOpenadd: China Datang CorporationCenterCentraisCentral Alabama

  13. Central Electric Coop Inc | Open Energy Information

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  14. Central Electric Coop, Inc | Open Energy Information

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation inOpenadd: China DatangCentral El trica Anhanguera CELANCentral

  15. Central Energetica Ribeirao Preto | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation inOpenadd: China DatangCentral El trica AnhangueraEnergetica

  16. West Central Soy | Open Energy Information

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlin BaxinUmweltVillageGraphWellton-Mohawk IrrWest Central ElectricWest

  17. Magnetic Resonant Coupling As a Potential Means for Wireless Power Transfer to Multiple Small Receivers

    E-Print Network [OSTI]

    Cannon, Benjamin Louis

    Wireless power transfer via magnetic resonant coupling is experimentally demonstrated in a system with a large source coil and either one or two small receivers. Resonance between source and load coils is achieved with ...

  18. Development of a solar receiver for a high-efficiency thermionic/thermoelectric conversion system

    SciTech Connect (OSTI)

    Naito, H.; Kohsaka, Y.; Cooke, D.; Arashi, H. [Tohoku Univ., Aramaki (Japan)] [Tohoku Univ., Aramaki (Japan)

    1996-10-01T23:59:59.000Z

    Solar energy is one of the most promising energy resources on Earth and in space, because it is clean and inexhaustible. Therefore, we have been developing a solar-powered high-efficiency thermionic-thermoelectric conversion system which combines a thermionic converter (TIC) with a thermoelectric converter (TEC) to use thermal energy efficiently and to achieve high efficiency conversion. The TIC emitter must uniformly heat up to 1800 K. The TIC emitter can be heated using thermal radiation from a solar receiver maintained at a high temperature by concentrated solar irradiation. A cylindrical cavity-type solar receiver constructed from graphite was designed and heated in a vacuum by using the solar concentrator at Tohoku University. The maximum temperature of the solar receiver enclosed by a molybdenum cup reached 1965 K, which was sufficiently high to heat a TIC emitter using thermal radiation from the receiver. 4 refs., 6 figs., 1 tab.

  19. Critical issues in the development of hybrid solar/gas receivers for dish/Stirling systems

    SciTech Connect (OSTI)

    Adkins, D.R.; Rawlinson, K.S.

    1991-01-01T23:59:59.000Z

    A hybrid solar/gas receiver system will allow Stirling engines to operate with combined solar and gas power sources. One of the most attractive options for building a hybrid system is to integrate a gas-fired heat pipe directly into a heat-pipe solar receiver. Before this union can take place, however, a number of technical issues must be resolved. A design must be found that properly distributes the heat-pipe's working fluid over the heated surfaces and prevents fluid from accumulating at undesirable locations in the heat pipe. Experience that has been gained in developing solar receivers and gas-fired heat pipes under recent Department of Energy solar-thermal dish-electric programs is used in this paper to address many of the technical obstacles to building receiver systems. 16 refs.

  20. Small-Particle Solar Receiver for High-Temperature Brayton Power Cycles (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    San Diego State University is one of the 2012 SunShot CSP R&D awardees for their advanced receivers. This fact sheet explains the motivation, description, and impact of the project.

  1. Assessing the Effect of Students’ Perceptions on Benefits Received from Participation in Service-Learning 

    E-Print Network [OSTI]

    Goolsby, Tessa Maring

    2011-02-22T23:59:59.000Z

    This study examined how teachers' perceptions and attitudes and students' perceptions impacted the learning outcomes students received from their participation in service-learning. Service-learning is a form of experiential ...

  2. A NYQUIST FOLDING ANALOG-TO-INFORMATION RECEIVER Gerald L. Fudge1

    E-Print Network [OSTI]

    Haupt, Jarvis

    A NYQUIST FOLDING ANALOG-TO-INFORMATION RECEIVER Gerald L. Fudge1 , Ross E. Bland1 , Mark A. Chivers1 , Sujit Ravindran1 , Jarvis Haupt2 , P. E. Pace3 1 L-3 Communications Integrated Systems

  3. Acceptance test report for the 241-SY-101 Flexible Receiver Gamma Detector System

    SciTech Connect (OSTI)

    Dowell, J.L.

    1995-02-17T23:59:59.000Z

    This Acceptance Test Report is for the 241-SY-101 Flexible Receiver Gamma Detector System. This test verified that the data logger and data converter for the gamma detector system functions as intended.

  4. Agency Responses to Comments Received during the 2011 Alaska Forum on the Environment

    Broader source: Energy.gov [DOE]

    Agency Responses to Comments Received during the 2011 Alaska Forum on the EnvironmentEnvironmental Justice Interagency Working Group Community DialogueAnchorage, AKFebruary 7-11, 2011

  5. Energy Secretary Chu to Receive Arthur L. Schawlow Award at the...

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

    --- U.S. Energy Secretary Steven Chu will receive the Arthur L. Schawlow Award at the Laser Institute of America Annual Meeting tomorrow in Anaheim, CA, in recognition of his...

  6. Modeling the solar thermal receiver for the CSPonD Project

    E-Print Network [OSTI]

    Rees, Jennifer A. (Jennifer Anne)

    2011-01-01T23:59:59.000Z

    The objective was to create an accurate steady state thermal model of a molten salt receiver prototype with a horizontal divider plate in the molten salt for Concentrated Solar Power on Demand (CSPonD). The purpose of the ...

  7. Wirth receives top DOE honor, credits UT-ORNL partnership | ornl...

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

    Media Contact: David Goddard University of Tennessee 865-974-0683 Wirth receives top DOE honor, credits UT-ORNL partnership Brian Wirth Brian Wirth (hi-res image) OAK...

  8. Analog Baseband Filters and Mixed Signal Circuits for Broadband Receiver Systems

    E-Print Network [OSTI]

    Kulkarni, Raghavendra Laxman

    2012-02-14T23:59:59.000Z

    deals with broadband wireless receivers. With an objective to gain insight, we quantify the impact of undesired out-band blockers on analog baseband in a broadband radio. We present a systematic evaluation of the dynamic range requirements...

  9. Fact #856 January 19, 2015 Plug-in and Hybrid Cars Receive High...

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

    Plug-in and Hybrid Cars Receive High Scores for Owner Satisfaction fotw856web.xlsx More Documents & Publications Quarterly Analysis Review February 2015 Fact 853 December 29,...

  10. Pilot Allocation and Receive Antenna Selection: A Markov Decision Theoretic Approach

    E-Print Network [OSTI]

    Coupechoux, Marceau

    Stephen, Chandra R. Murthy, and Marceau Coupechoux Abstract--This paper considers antenna selection (AS@gmail.com, cmurthy@ece.iisc.ernet.in and marceau.coupechoux@telecom-paristech.fr. that transmit and receive AS can

  11. Measuring the Optical Performance of Evacuated Receivers via an Outdoor Thermal Transient Test: Preprint

    SciTech Connect (OSTI)

    Kutscher, C.; Burkholder, F.; Netter, J.

    2011-08-01T23:59:59.000Z

    Modern parabolic trough solar collectors operated at high temperatures to provide the heat input to Rankine steam power cycles employ evacuated receiver tubes along the collector focal line. High performance is achieved via the use of a selective surface with a high absorptance for incoming short-wave solar radiation and a low emittance for outgoing long-wave infrared radiation, as well as the use of a hard vacuum to essentially eliminate convective and conductive heat losses. This paper describes a new method that determines receiver overall optical efficiency by exposing a fluid-filled, pre-cooled receiver to one sun outdoors and measuring the slope of the temperature curve at the point where the receiver temperature passes the glass envelope temperature (that is, the point at which there is no heat gain or loss from the absorber). This transient test method offers the potential advantages of simplicity, high accuracy, and the use of the actual solar spectrum.

  12. An Air-Based Cavity-Receiver for Solar Trough Concentrators Roman Bader

    E-Print Network [OSTI]

    . A numerical heat transfer model is developed to determine the receiver's absorption efficiency and pumping penalties. In this paper, a numerical heat transfer model of an air-based cylindrical cavity

  13. High-Efficiency Receivers for Supercritical Carbon Dioxide Cycles, Concentrating Solar Power (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    Brayton Energy is one of the 2012 SunShot CSP R&D awardees for their advanced receivers. This fact sheet explains the motivation, description, and impact of the project.

  14. Y-12's historian receives 2013 Muddy Boot Award | Y-12 National...

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

    Y-12's historian receives 2013 Muddy Boot Award Posted: December 16, 2013 - 12:43pm Ray Smith, left, is one of three recipients of this year's Muddy Boot award from the East...

  15. RECEIVED JUL

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

    it a reasonable alternative. 3.2.5 Conversion to Heatinq from Solar, Wind, and Geothermal Energy -- Solar, wind, and geothermal heating also were analyzed and eliminated from...

  16. Relationship between R? bounds and asymptotic relative efficiency for quantized receivers

    E-Print Network [OSTI]

    Cimadevilla, Marcos Ortiz

    1991-01-01T23:59:59.000Z

    RELATIONSHIP BETWEEN AD BOUNDS AND ASYMPTOTIC RELATIVE EFFICIENCY FOR QUANTIZED RECEIVERS A Thesis by MARCOS ORTIZ CIMADEVILLA Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 1991 Major Subject. : Electrical Engineering RELATIONSHIP BETWEEN R() BOUNDS AND ASYMPTOTIC RELATIVE EFFICIENCY FOR QUANTIZED RECEIVERS A Thesis bv MARCOS ORTIZ CIMADEVILLA Approved as to style and content by...

  17. Predicting flammable gas mixtures in Hanford double-contained receiver tanks

    SciTech Connect (OSTI)

    Hedengren, D.C.

    1998-05-13T23:59:59.000Z

    This study presents a methodology to estimate the maximum concentrations of flammable gases (ammonia, hydrogen, and methane) which could exist in the vapor space of a double-contained receiver tank (DCRT). DCRTs are temporary storage tanks which receive highly radioactive liquid wastes from salt well pumping of Hanford single-shell tanks (SST). The methodology of this study could be used in other applications involving the storage and transfer of radioactive liquid wastes which generate or contain various dissolved flammable gases.

  18. A Dual Tone Multiple Frequency receiver using a multiplexed OTA-C filter frequency detection architecture

    E-Print Network [OSTI]

    Garcia, Gerald William

    1988-01-01T23:59:59.000Z

    A DUAL TONE MULTIPLE FREQUENCY RECEIVER USING A MULTIPLEXED OTA-C FILTER FREQUENCY DETECTION ARCHITECTURE A Thesis by GERALD WILLIAM GARCIA Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August 1988 Major Subject: Electrical Engineering A DUAL TONE MULTIPLE FREQUENCY RECEIVER USING A MULTIPLEXED OTA-C FILTER FREQUENCY DETECTION ARCHITECTURE A Thesis by GERALD WILLIAM GARCIA Approved as to style...

  19. Analysis of Dose at the Site of Second Tumor Formation After Radiotherapy to the Central Nervous System

    SciTech Connect (OSTI)

    Galloway, Thomas J. [Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, FL (United States); University of Florida Proton Therapy Institute, Jacksonville, FL (United States); Indelicato, Daniel J., E-mail: dindelicato@floridaproton.org [University of Florida Proton Therapy Institute, Jacksonville, FL (United States); Amdur, Robert J.; Morris, Christopher G.; Swanson, Erika L. [Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, FL (United States); Marcus, Robert B. [University of Florida Proton Therapy Institute, Jacksonville, FL (United States)

    2012-01-01T23:59:59.000Z

    Purpose: Second tumors are an uncommon complication of multimodality treatment of childhood cancer. The present analysis attempted to correlate the dose received as a component of primary treatment and the site of the eventual development of a second tumor. Methods and Materials: We retrospectively identified 16 patients who had received radiotherapy to sites in the craniospinal axis and subsequently developed a second tumor. We compared the historical fields and port films of the primary treatment with the modern imaging of the second tumor locations. We classified the location of the second tumors as follows: in the boost field; marginal to the boost field, but in a whole-brain field; in a whole-brain field; marginal to the whole brain/primary treatment field; and distant to the field. We divided the dose received into 3 broad categories: high dose (>45 Gy), moderate dose (20-36 Gy), and low dose (<20 Gy). Results: The most common location of the second tumor was in the whole brain field (57%) and in the moderate-dose range (81%). Conclusions: Our data contradict previous publications that suggested that most second tumors develop in tissues that receive a low radiation dose. Almost all the second tumors in our series occurred in tissue within a target volume in the cranium that had received a moderate dose (20-36 Gy). These findings suggest that a major decrease in the brain volume that receives a moderate radiation dose is the only way to substantially decrease the second tumor rate after central nervous system radiotherapy.

  20. Central Equatorial Pacific Experiment (CEPEX). Design document

    SciTech Connect (OSTI)

    Not Available

    1993-04-01T23:59:59.000Z

    The Earth`s climate has varied significantly in the past, yet climate records reveal that in the tropics, sea surface temperatures seem to have been remarkably stable, varying by less than a few degrees Celsius over geologic time. Today, the large warm pool of the western Pacific shows similar characteristics. Its surface temperature always exceeds 27{degree}C, but never 31{degree}C. Heightened interest in this observation has been stimulated by questions of global climate change and the exploration of stabilizing climate feedback processes. Efforts to understand the observed weak sensitivity of tropical sea surface temperatures to climate forcing has led to a number of competing ideas about the nature of this apparent thermostat. Although there remains disagreement on the processes that regulate tropical sea surface temperature, most agree that further progress in resolving these differences requires comprehensive field observations of three-dimensional water vapor concentrations, solar and infrared radiative fluxes, surface fluxes of heat and water vapor, and cloud microphysical properties. This document describes the Central Equatorial Pacific Experiment (CEPEX) plan to collect such observations over the central equatorial Pacific Ocean during March of 1993.

  1. Solar receiver protection means and method for loss of coolant flow

    DOE Patents [OSTI]

    Glasgow, Lyle E. (Westlake Village, CA)

    1983-01-01T23:59:59.000Z

    An apparatus and method for preventing a solar receiver (12) utilizing a flowing coolant liquid for removing heat energy therefrom from overheating after a loss of coolant flow. Solar energy is directed to the solar receiver (12) by a plurality of reflectors (16) which rotate so that they direct solar energy to the receiver (12) as the earth rotates. The apparatus disclosed includes a first storage tank (30) for containing a first predetermined volume of the coolant and a first predetermined volume of gas at a first predetermined pressure. The first storage tank (30) includes an inlet and outlet through which the coolant can enter and exit. The apparatus also includes a second storage tank (34) for containing a second predetermined volume of the coolant and a second predetermined volume of the gas at a second predetermined pressure, the second storage tank (34) having an inlet through which the coolant can enter. The first and second storage tanks (30) and (34) are in fluid communication with each other through the solar receiver (12). The first and second predetermined coolant volumes, the first and second gas volumes, and the first and second predetermined pressures are chosen so that a predetermined volume of the coolant liquid at a predetermined rate profile will flow from the first storage tank (30) through the solar receiver (12) and into the second storage tank (34). Thus, in the event of a power failure so that coolant flow ceases and the solar reflectors (16) stop rotating, a flow rate maintained by the pressure differential between the first and second storage tanks (30) and (34) will be sufficient to maintain the coolant in the receiver (12) below a predetermined upper temperature until the solar reflectors (16) become defocused with respect to the solar receiver (12) due to the earth's rotation.

  2. Solar receiver protection means and method for loss of coolant flow

    DOE Patents [OSTI]

    Glasgow, L.E.

    1980-11-24T23:59:59.000Z

    An apparatus and method are disclosed for preventing a solar receiver utilizing a flowing coolant liquid for removing heat energy therefrom from overheating after a loss of coolant flow. Solar energy is directed to the solar receiver by a plurality of reflectors which rotate so that they direct solar energy to the receiver as the earth rotates. The apparatus disclosed includes a first storage tank for containing a first predetermined volume of the coolant and a first predetermined volume of gas at a first predetermined pressure. The first storage tank includes an inlet and outlet through which the coolant can enter and exit. The apparatus also includes a second storage tank for containing a second predetermined volume of the coolant and a second predetermined volume of the gas at a second predetermined pressure, the second storage tank having an inlet through which the coolant can enter. The first and second storage tanks are in fluid communication with each other through the solar receiver. The first and second predetermined coolant volumes, the first and second gas volumes, and the first and second predetermined pressures are chosen so that a predetermined volume of the coolant liquid at a predetermined rate profile will flow from the first storage tank through the solar receiver and into the second storage tank. Thus, in the event of a power failure so that coolant flow ceases and the solar reflectors stop rotating, a flow rate maintained by the pressure differential between the first and second storage tanks will be sufficient to maintain the coolant in the receiver below a predetermined upper temperature until the solar reflectors become defocused with respect to the solar receiver due to the earth's rotation.

  3. Sodium reflux pool-boiler solar receiver on-sun test results

    SciTech Connect (OSTI)

    Andraka, C E; Moreno, J B; Diver, R B; Moss, T A [Oak Ridge National Lab., TN (United States)] [Oak Ridge National Lab., TN (United States)

    1992-06-01T23:59:59.000Z

    The efficient operation of a Stirling engine requires the application of a high heat flux to the relatively small area occupied by the heater head tubes. Previous attempts to couple solar energy to Stirling engines generally involved directly illuminating the heater head tubes with concentrated sunlight. In this study, operation of a 75-kW{sub t} sodium reflux pool-boiler solar receiver has been demonstrated and its performance characterized on Sandia's nominal 75-kW{sub t} parabolic-dish concentrator, using a cold-water gas-gap calorimeter to simulate Stirling engine operation. The pool boiler (and more generally liquid-metal reflux receivers) supplies heat to the engine in the form of latent heat released from condensation of the metal vapor on the heater head tubes. The advantages of the pool boiler include uniform tube temperature, leading to longer life and higher temperature available to the engine, and decoupling of the design of the solar absorber from the engine heater head. The two-phase system allows high input thermal flux, reducing the receiver size and losses, therefore improving system efficiency. The receiver thermal efficiency was about 90% when operated at full power and 800{degree}C. Stable sodium boiling was promoted by the addition of 35 equally spaced artificial cavities in the wetted absorber surface. High incipient boiling superheats following cloud transients were suppressed passively by the addition of small amounts of xenon gas to the receiver volume. Stable boiling without excessive incipient boiling superheats was observed under all operating conditions. The receiver developed a leak during performance evaluation, terminating the testing after accumulating about 50 hours on sun. The receiver design is reported here along with test results including transient operations, steady-state performance evaluation, operation at various temperatures, infrared thermography, x-ray studies of the boiling behavior, and a postmortem analysis.

  4. Ohio State receives Obama-Singh award The Ohio State University is one of four U.S. universities to receive the highly competitive Obama-Singh 21st Century

    E-Print Network [OSTI]

    Nahar, Sultana Nurun

    Ohio State receives Obama-Singh award The Ohio State University is one of four U.S. universities to receive the highly competitive Obama-Singh 21st Century Knowledge Initiative award for its project-year period, Ohio State will receive approximately $250,000 to launch a pilot program with Aligarh Muslim

  5. ITER Central Solenoid Coil Insulation Qualification

    SciTech Connect (OSTI)

    Martovetsky, Nicolai N [ORNL] [ORNL; Mann Jr, Thomas Latta [ORNL] [ORNL; Miller, John L [ORNL] [ORNL; Freudenberg, Kevin D [ORNL] [ORNL; Reed, Richard P [Cryogenic Materials, Inc.] [Cryogenic Materials, Inc.; Walsh, Robert P [Florida State University] [Florida State University; McColskey, J D [National Institute of Standards and Technology (NIST), Boulder] [National Institute of Standards and Technology (NIST), Boulder; Evans, D [Advanced Cryogenic Materials] [Advanced Cryogenic Materials

    2010-01-01T23:59:59.000Z

    An insulation system for ITER Central Solenoid must have sufficiently high electrical and structural strength. Design efforts to bring stresses in the turn and layer insulation within allowables failed. It turned out to be impossible to eliminate high local tensile stresses in the winding pack. When high local stresses can not be designed out, the qualification procedure requires verification of the acceptable structural and electrical strength by testing. We built two 4x4 arrays of the conductor jacket with two options of the CS insulation and subjected the arrays to 1.2 million compressive cycles at 60 MPa and at 76 K. Such conditions simulated stresses in the CS insulation. We performed voltage withstand tests and after end of cycling we measured the breakdown voltages between in the arrays. After that we dissectioned the arrays and studied micro cracks in the insulation. We report details of the specimens preparation, test procedures and test results.

  6. Central Waste Complex (CWC) Waste Analysis Plan

    SciTech Connect (OSTI)

    ELLEFSON, M.D.

    2000-01-06T23:59:59.000Z

    The purpose of this waste analysis plan (WAP) is to document the waste acceptance process, sampling methodologies, analytical techniques, and overall processes that are undertaken for waste accepted for storage at the Central Waste Complex (CWC), which is located in the 200 West Area of the Hanford Facility, Richland, Washington. Because dangerous waste does not include the source special nuclear and by-product material components of mixed waste, radionuclides are not within the scope of this document. The information on radionuclides is provided only for general knowledge. This document has been revised to meet the interim status waste analysis plan requirements of Washington Administrative Code (WAC) 173 303-300(5). When the final status permit is issued, permit conditions will be incorporated and this document will be revised accordingly.

  7. Fueling and morphology of central starbursts

    E-Print Network [OSTI]

    Johan H. Knapen

    2005-01-17T23:59:59.000Z

    Of the mechanisms proposed to bring gaseous fuel into the central starburst regions of a galaxy, non-axisymmetries in the gravitational potential set up by interactions or by bars are among the most promising. Nevertheless, direct observational evidence for a connection between interactions and bars on the one hand, and starburst (as well as AGN) activity on the other, remains patchy. These general issues are reviewed before proceeding to discuss, within this context, massive star formation in the circumnuclear regions of spiral galaxies, in particular star-forming nuclear rings and pseudo-rings. Such rings are common, and are closely linked to the dynamics of their host galaxy, which in almost all cases is barred. The possible existence of a population of nuclear rings on scales which are too small for detection with standard ground- or even space-based techniques will be discussed.

  8. ITER CENTRAL SOLENOID COIL INSULATION QUALIFICATION

    SciTech Connect (OSTI)

    Martovetsky, N N; Mann, T L; Miller, J R; Freudenberg, K D; Reed, R P; Walsh, R P; McColskey, J D; Evans, D

    2009-06-11T23:59:59.000Z

    An insulation system for ITER Central Solenoid must have sufficiently high electrical and structural strength. Design efforts to bring stresses in the turn and layer insulation within allowables failed. It turned out to be impossible to eliminate high local tensile stresses in the winding pack. When high local stresses can not be designed out, the qualification procedure requires verification of the acceptable structural and electrical strength by testing. We built two 4 x 4 arrays of the conductor jacket with two options of the CS insulation and subjected the arrays to 1.2 million compressive cycles at 60 MPa and at 76 K. Such conditions simulated stresses in the CS insulation. We performed voltage withstand tests and after end of cycling we measured the breakdown voltages between in the arrays. After that we dissectioned the arrays and studied micro cracks in the insulation. We report details of the specimens preparation, test procedures and test results.

  9. Standard practice for evaluating absorptive solar receiver materials when exposed to conditions simulating stagnation in solar collectors with cover plates

    E-Print Network [OSTI]

    American Society for Testing and Materials. Philadelphia

    1986-01-01T23:59:59.000Z

    Standard practice for evaluating absorptive solar receiver materials when exposed to conditions simulating stagnation in solar collectors with cover plates

  10. Radioactive Waste Management in Central Asia - 12034

    SciTech Connect (OSTI)

    Zhunussova, Tamara; Sneve, Malgorzata; Liland, Astrid [Norwegian Radiation Protection Authority (Norway)

    2012-07-01T23:59:59.000Z

    After the collapse of the Soviet Union the newly independent states in Central Asia (CA) whose regulatory bodies were set up recently are facing problems with the proper management of radioactive waste and so called 'nuclear legacy' inherited from the past activities. During the former Soviet Union (SU) period, various aspects of nuclear energy use took place in CA republics of Kazakhstan, Kyrgyzstan, Tajikistan and Uzbekistan. Activities range from peaceful use of energy to nuclear testing for example at the former Semipalatinsk Nuclear Test Site (SNTS) in Kazakhstan, and uranium mining and milling industries in all four countries. Large amounts of radioactive waste (RW) have been accumulated in Central Asia and are waiting for its safe disposal. In 2008 the Norwegian Radiation Protection Authority (NRPA), with the support of the Norwegian Ministry of Foreign Affairs, has developed bilateral projects that aim to assist the regulatory bodies in Kazakhstan, Kyrgyzstan Tajikistan, and Uzbekistan (from 2010) to identify and draft relevant regulatory requirements to ensure the protection of the personnel, population and environment during the planning and execution of remedial actions for past practices and radioactive waste management in the CA countries. The participating regulatory authorities included: Kazakhstan Atomic Energy Agency, Kyrgyzstan State Agency on Environmental Protection and Forestry, Nuclear Safety Agency of Tajikistan, and State Inspectorate on Safety in Industry and Mining of Uzbekistan. The scope of the projects is to ensure that activities related to radioactive waste management in both planned and existing exposure situations in CA will be carried out in accordance with the international guidance and recommendations, taking into account the relevant regulatory practice from other countries in this area. In order to understand the problems in the field of radioactive waste management we have analysed the existing regulations through the so called 'Threat assessment' in each CA country which revealed additional problems in the existing regulatory documents beyond those described at the start of our ongoing bilateral projects in Kazakhstan, Kirgizistan Tajikistan and Uzbekistan. (authors)

  11. P:\\Policy & Procedures\\EHS\\EH&S#16-Receiving dangerous goods-rev.doc Environmental Health & Safety

    E-Print Network [OSTI]

    Fernandez, Eduardo

    P:\\Policy & Procedures\\EHS\\EH&S#16-Receiving dangerous goods-rev.doc Environmental Health & Safety Policy & Procedure #16 TITLE: DANGEROUS GOODS RECEIVING POLICY OBJECTIVE AND PURPOSE: To ensure packages containing dangerous goods are properly received, stored and distributed to the FAU campus community

  12. An Analysis of the Risks of a Terrorist Attack on LNG Receiving Facilities in the United States

    E-Print Network [OSTI]

    Wang, Hai

    An Analysis of the Risks of a Terrorist Attack on LNG Receiving Facilities in the United States #12;An Analysis of the Risks of a Terrorist Attack on LNG Receiving Facilities in the United States 3-D Aerial View from Proposed SES LNG Receiving Facility Site to Downtown Long Beach [White line is 2

  13. Joint synchronization and calibration of multi-channel transform-domain charge sampling receivers

    E-Print Network [OSTI]

    Kotte Prakasam, Pradeep

    2010-07-14T23:59:59.000Z

    , the expansion coe?cients become the Fourier series coe?cients, hence, the receiver is referred to as the Frequency domain (FD) receiver. In each channel, the input signal is mixed with the basis signal and integrated in a window of duration Tc seconds... that cover the entire signal block provide a total of MN coe?cients R(m;n)jM?1m=0jN?1n=0 given by, Rm;n = Z mTs+Tc mTs x(t)'?n(t)dt; (1.1) where Ts = Tc ? Tov, x(t) is the received signal, m = 0 to M ? 1 indicates the mth segment in each channel and n = 0...

  14. Boiling behavior of sodium-potassium alloy in a bench-scale solar receiver

    SciTech Connect (OSTI)

    Moreno, J.B.; Andraka, C.E.; Moss, T.A.

    1992-01-01T23:59:59.000Z

    During 1989-90, a 75-kW{sub t} sodium reflux pool-boiler solar receiver was successfully demonstrated at Sandia National Laboratories. Significant features of this receiver include (1) boiling sodium as the heat transfer medium and (2) electric-discharge-machined (EDM) cavities as artificial nucleation sites to stabilize boiling. Since this first demonstration, design of a second-generation pool-boiler receiver that will bring the concept closer to commercialization has begun. For long life, the new receiver uses Haynes Alloy 230. For increased safety factors against film boiling and flooding, it has a refined shape and somewhat larger dimensions. To eliminate the need for trace heating, the receiver will boil the sodium-potassium alloy NaK-78 instead of sodium. To reduce manufacturing costs, it will use one of a number of alternatives to EDM cavities for stabilization of boiling. To control incipient-boiling superheats, especially during hot restarts, it will contain a small amount of inert gas. Before the new receiver design could be finalized, bench-scale tests of some of the proposed changes were necessary. A series of bench-scale pool boilers were built from Haynes Alloy 230 and filled with NaK-78. Various boiling-stabilizer candidates were incorporated into them, including laser-drilled cavities and a number of different sintered-powder-metal coatings. These bench-scale pool boilers have been operated at temperatures up to 750{degree}C, heated by quartz lamps with incident radiant fluxes up to 95 W/cm{sup 2}. The effects of various orientations and added gases have been studied. results of these studies are presented. 15 refs.

  15. Pool boiler reflux solar receiver for Stirling dish-electric systems

    SciTech Connect (OSTI)

    Andraka, C.E.; Moreno, J.B.

    1989-01-01T23:59:59.000Z

    The feasibility of competitive, modular bulk electric power from the sun may be greatly enhanced by the use of a reflux heat pipe receiver to combine a heat engine such as Stirling with a paraboloidal dish concentrator. This combination represents a potential improvement over previous successful demonstrations of dish-electric technology in terms of enhanced performance, lower cost, longer life, and greater flexibility in engine design. There are, however, important issues and unknowns which must be addressed to determine engineering feasibility of these devices. In the pool boiler reflux receiver, concentrated solar radiation causes liquid metal (sodium or potassium) to boil. The vapor flows to the engine heater heads, where it condenses and releases the latent heat. The condensate is returned to the receiver absorber pool by gravity (refluxing). This is essentially an adaptation of heat pipe technology to the peculiar requirements of concentrated solar flux, and provides many advantages over conventional heated tube receiver technology. Boiling theory indicates that long-term stable boiling of liquid metal may be difficult to achieve. Laboratory scale experiments have been performed. Initial tests confirmed that boiling is unstable in a baseline boiler. Boiling stability was established after the addition of ''artificial cavities'' to the heated surface, and successful boiling of sodium was demonstrated for 100 hours. Other stabilizing influences may have been present, and will be discussed. The flux and geometry closely simulated a real receiver. The results of these tests are presented, along with the design of a full scale receiver for on-sun testing and considerations for long term operation. 15 refs., 10 figs.

  16. Central Lincoln People's Utility District- Renewable Energy Incentive Program

    Broader source: Energy.gov [DOE]

    Central Lincoln People's Utility District provides financial incentives for its commercial and residential customers to install photovoltaic (PV), solar water heating, wind, and hydro electric...

  17. Central Georgia EMC- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Central Georgia Electric Member Corporation (CGEMC) offers rebates for residential customers to increase the energy efficiency of existing homes or to build new energy efficient homes.  This year,...

  18. Central Electric Cooperative- Residential Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    The Central Electric Cooperative (CEC) offers a variety of financial incentives to promote energy efficiency among residential members. Rebates are provided for qualifying weatherization measures,...

  19. Central Alabama Electric Cooperative- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Central Alabama Electric Cooperative, a Touchstone Electric Cooperative, offers the Touchstone Energy Home Program. Touchstone Energy Homes with a dual-fuel or geothermal heat pump qualify for...

  20. atera fault central: Topics by E-print Network

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

    deformation and creep along the central section of the North Anatolian Fault (Turkey): InSAR observations Geosciences Websites Summary: Interseismic deformation and creep...