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


1

High Performance Rooftop Units  

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

Presentationname High Performance RTUs Life Cycle Cost Comparison Calculator * Web-based tool for comparing costs of standard and high performance RTUs. * Weather data for 237...

2

Rooftop Diagnostician - Available Technologies - PNNL  

It allows you to remotely monitor the functionality of a rooftop unit in order to easily and cost ... Detects high energy use and control failures; ...

3

Field Test and Performance Verification: Integrated Active Desiccant Rooftop Hybrid System Installed in a School - Final Report: Phase 4A  

SciTech Connect

This report summarizes the results of a field verification pilot site investigation that involved the installation of a hybrid integrated active desiccant/vapor-compression rooftop heating, ventilation, and air-conditioning (HVAC) unit at an elementary school in the Atlanta Georgia area. For years, the school had experienced serious humidity and indoor air quality (IAQ) problems that had resulted in occupant complaints and microbial (mold) remediation. The outdoor air louvers of the original HVAC units had been closed in an attempt to improve humidity control within the space. The existing vapor compression variable air volume system was replaced by the integrated active desiccant rooftop (IADR) system that was described in detail in an Oak Ridge National Laboratory (ORNL) report published in 2004 (Fischer and Sand 2004). The IADR system and all space conditions have been monitored remotely for more than a year. The hybrid system was able to maintain both the space temperature and humidity as desired while delivering the outdoor air ventilation rate required by American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 62. The performance level of the IADR unit and the overall system energy efficiency was measured and found to be very high. A comprehensive IAQ investigation was completed by the Georgia Tech Research Institute before and after the system retrofit. Before-and-after data resulting from this investigation confirmed a significant improvement in IAQ, humidity control, and occupant comfort. These observations were reported by building occupants and are echoed in a letter to ORNL from the school district energy manager. The IADR system was easily retrofitted in place of the original rooftop system using a custom curb adapter. All work was completed in-house by the school's maintenance staff over one weekend. A subsequent cost analysis completed for the school district by the design engineer of record concluded that the IADR system being investigated was actually less expensive to install than other less-efficient options, most of which were unable to deliver the required ventilation while maintaining the desired space humidity levels.

Fischer, J

2005-12-21T23:59:59.000Z

4

Field Demonstration of a High-Efficiency Packaged Rooftop Air Conditioning Unit at Fort Gordon, Augusta, GA  

Science Conference Proceedings (OSTI)

As part of a larger program targeting the market transformation of packaged rooftop air conditioning, five high-efficiency rooftop air conditioning products were selected in 2002 by the U.S. Department of Energy (DOE) under the Unitary Air Conditioner (UAC) Technology Procurement (http://www.pnl.gov/uac). In February 2003, Fort Gordon in Augusta, Georgia was chosen as the demonstration site. With the goal of validating the field performance and operation of one of the awarded products, a 10-ton high-efficiency packaged rooftop unit (RTU) manufactured by Global Energy Group (GEG) was installed at Fort Gordon in October 2003. Following equipment installation, power metering, air- and refrigerant-side instrumentation was installed on the GEG RTU and a 4-year old typical-efficiency 20-ton RTU manufactured by AAON . The GEG and AAON units were instrumented identically and operated May through July, 2005, to observe performance under a range of conditions. Based on the data collected as part of this demonstration, the GEG equipment performed at least 8% better in stage-1 (single compressor running) cooling and at least 16% better in stage-2 (both compressors running) than the baseline AAON equipment. Performance comparisons are based on what we call application EER normalized to equivalent specific fan power. The full-load, specific-fan-power-normalized application EERs at ARI design conditions were 10.48 Btu/Wh for the GEG and 9.00 Btu/Wh for the baseline machine. With a cost premium of nearly 50%, and slightly higher maintenance costs, the life-cycle cost analysis shows that the GEG technology pays for itself--a positive net-present value (NPV)--only in climates and buildings with long cooling seasons. Manufacture of this equipment on a larger scale can be expected to reduce costs to the point where it is more broadly cost-effective. The assumed 10-ton baseline and new-technology unit costs are $3824.00 and $5525.00 respectively. If the new technology cost is assumed to drop as sales increase to $4674.50 for a 10-ton unit (i.e. the original cost difference is halved), the life-cycle costs improve. A grid of first cost, annual maintenance cost and electricity price is enumerated and the results presented in the report show the sensitivity of life cycle cost to these three financial parameters in each of eight different climates.

Armstrong, Peter R.; Sullivan, Gregory P.; Parker, Graham B.

2006-03-31T23:59:59.000Z

5

Next Generation Rooftop Unit  

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

Next Generation Rooftop Unit - Next Generation Rooftop Unit - CRADA Bo Shen Oak Ridge National Laboratory shenb@ornl.gov; 865-574-5745 April 3, 2013 ET R&D project in support of DOE/BTO Goal of 50% Reduction in Building Energy Use by 2030. CRADA project with Trane TOP US Commercial HVAC Equipment OEM 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: half of all US commercial floor space cooled by packaged AC units, consumes more than 1.0 Quad source energy/year; highly efficient systems needed

6

Next Generation Rooftop Unit  

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

Next Generation Rooftop Unit - Next Generation Rooftop Unit - CRADA Bo Shen Oak Ridge National Laboratory shenb@ornl.gov; 865-574-5745 April 3, 2013 ET R&D project in support of DOE/BTO Goal of 50% Reduction in Building Energy Use by 2030. CRADA project with Trane TOP US Commercial HVAC Equipment OEM 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: half of all US commercial floor space cooled by packaged AC units, consumes more than 1.0 Quad source energy/year; highly efficient systems needed

7

DIY ROOFTOP GARDENS CHECKLIST  

E-Print Network (OSTI)

DIY ROOFTOP GARDENS CHECKLIST It is essential to get professionals involved at the outset to have SEE OUR: General DIY safety tips Painter's checklist VISIT DOMAIN'S DIY SPECIAL FEATURECoburgin2008.Photographer:RodgerCummins. DIY ROOFTOP GARDENS CHECKLIST #12;

Peters, Richard

8

SC: Install units produced by the high performance RTU challenge | The  

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

Technology Solutions Teams » Space Conditioning » Install units Technology Solutions Teams » Space Conditioning » Install units produced by the High Performance Rooftop Unit Challenge that meet the high performance rooftop unit specification Activities Technology Solutions Teams Lighting & Electrical Space Conditioning Plug & Process Loads Food Service Refrigeration Laboratories Energy Management & Information Systems Public Sector Teams Market Solutions Teams Install units produced by the High Performance Rooftop Unit Challenge that meet the high performance rooftop unit specification In January 2011, the U.S. Department of Energy (DOE) joined industry partners in the Better Buildings Alliance to release a design specification for 10-ton capacity commercial air conditioners, also known as rooftop units (RTUs).

9

Rooftop Unit Campaign  

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

919-943-7291 April 4, 2013 BTO Program Review 2 | Building Technologies Office eere.energy.gov Purpose & Objectives - Problem Statement * Packaged rooftop units (RTUs)...

10

Roof-top solar energy potential under performance-based building energy codes: The case of Spain  

Science Conference Proceedings (OSTI)

The quantification at regional level of the amount of energy (for thermal uses and for electricity) that can be generated by using solar systems in buildings is hindered by the availability of data for roof area estimation. In this note, we build on an existing geo-referenced method for determining available roof area for solar facilities in Spain to produce a quantitative picture of the likely limits of roof-top solar energy. The installation of solar hot water systems (SHWS) and photovoltaic systems (PV) is considered. After satisfying up to 70% (if possible) of the service hot water demand in every municipality, PV systems are installed in the remaining roof area. Results show that, applying this performance-based criterion, SHWS would contribute up to 1662 ktoe/y of primary energy (or 68.5% of the total thermal-energy demand for service hot water), while PV systems would provide 10 T W h/y of electricity (or 4.0% of the total electricity demand). (author)

Izquierdo, Salvador; Montanes, Carlos; Dopazo, Cesar; Fueyo, Norberto [Fluid Mechanics Group, University of Zaragoza and LITEC (CSIC), Maria de Luna 3, 50018 Zaragoza (Spain)

2011-01-15T23:59:59.000Z

11

Sunshot Rooftop Solar Challenge | Department of Energy  

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

Centers Field Sites Power Marketing Administration Other Agencies You are here Home Sunshot Rooftop Solar Challenge Sunshot Rooftop Solar Challenge Sunshot Rooftop Solar...

12

rooftop | OpenEI  

Open Energy Info (EERE)

rooftop rooftop Dataset Summary Description No description given. Source National Renewable Energy Laboratory Date Released July 03rd, 2012 (2 years ago) Date Updated July 03rd, 2012 (2 years ago) Keywords biopower csp geothermal hydropower hydrothermal Renewable Energy Technical Potential rooftop United States utility-scale wind Data text/csv icon United States Renewable Energy Technical Potential (csv, 7.7 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating Average vote Your vote

13

Ice storage rooftop retrofit for rooftop air conditioning  

SciTech Connect

A significant fraction of the floor space in commercial and federal buildings is cooled by single-package rooftop air conditioning units. These units are located on flat roofs and usually operate during the day under hot conditions. They are usually less energy efficient than a chiller system for building cooling. Several U.S. companies are developing systems that employ ice storage in conjunction with chillers to replace older, inefficient rooftop units for improved performance and minimal use of on-peak electricity. Although the low evaporator temperatures needed for ice making tend to reduce the efficiency of the chiller, the overall operating costs of the ice storage system may be lower than that of a packaged, conventional rooftop installation. One version of this concept, the Roofberg{reg_sign} System developed by the Calmac Corporation, was evaluated on a small building at Oak Ridge National Laboratory in Oak Ridge, Tennessee. The Roofberg system consists of a chiller, an ice storage tank, and one or more rooftop units whose evaporator coils have been adapted to use a glycol solution for cooling. The ice storage component decouples the cooling demand of the building from the operation of the chiller. Therefore, the chiller can operate at night (cooler, more efficient condensing temperatures) to meet a daytime cooling demand. This flexibility permits a smaller chiller to satisfy a larger peak cooling load. Further, the system can be operated to shift the cooling demand to off-peak hours when electricity from the utility is generated more efficiently and at lower cost. This Roofberg system was successfully installed last year on a small one-story office building in Oak Ridge and is currently being operated to cool the building. The building and system were sufficiently instrumented to allow a determination of the performance and efficiency of the Roofberg system. Although the energy efficiency of a simulated Roofberg storage/chiller concept operating in the full storage mode was about equal to what could be expected through a simple rooftop efficiency upgrade, the operating costs for the Roofberg system could be much more favorable depending on the utility rate structure. The ability of Roofberg to move much of the cooling load to off-peak periods enables it to take advantage of on-peak demand charges and time-of-use electricity rates. The Roofberg system, as installed, was able to reduce the on-peak energy use of the cooling system to 35% of the on-peak energy consumption of the baseline system. A comparative analysis of a rooftop replacement and Roofberg indicated that the Roofberg system on Building 2518 would be the better economic choice over a range of demand charges and on-off peak energy prices which are typical of utility rate tariffs for commercial buildings.

Tomlinson, J.J. [Oak Ridge National Lab., TN (United States); Jennings, L.W. [Univ. of Tennessee, Knoxville (United States)

1997-09-01T23:59:59.000Z

14

Rooftop Diagnostician - Energy Innovation Portal  

The Rooftop Diagnostician provides fast and effective diagnostics for heating, ventilation and air conditioning units in commercial buildings, allowing you to better ...

15

An experimental and computational study of a rooftop-mounted linear fresnel solar thermal concentrator.  

E-Print Network (OSTI)

??This research study describes the thermal performance of a new low-cost rooftop concentrating solar thermal collector (MCT), developed by Chromasun, which uses linear Fresnel reflectors, (more)

Sultana, Tanzeen

2013-01-01T23:59:59.000Z

16

Rooftop Solar Challenge Award Winners | Department of Energy  

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

Rooftop Solar Challenge Award Winners Rooftop Solar Challenge Award Winners Select an Awardee Return to map Rooftop Solar Challenge II Award Winners Award Winner Headquarters...

17

Solar access of residential rooftops in four California cities  

E-Print Network (OSTI)

the solar access of rooftop solar-energy systems, includingthermal collection by rooftop solar-energy equipment. It canthe solar access of rooftop solar-energy systems, including

Levinson, Ronnen

2010-01-01T23:59:59.000Z

18

Rooftop Photovoltaics Market Penetration Scenarios  

DOE Green Energy (OSTI)

The goal of this study was to model the market penetration of rooftop photovoltaics (PV) in the United States under a variety of scenarios, on a state-by-state basis, from 2007 to 2015.

Paidipati, J.; Frantzis, L.; Sawyer, H.; Kurrasch, A.

2008-02-01T23:59:59.000Z

19

SunShot Rooftop Challenge Awardees  

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

Awardees, partners, award amounts, estimated population, and project descriptions for the 2011 SunShot Rooftop Challenge.

20

Ariz. Rooftops Key to Unlocking the Potential of Distributed Solar |  

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

Ariz. Rooftops Key to Unlocking the Potential of Distributed Solar Ariz. Rooftops Key to Unlocking the Potential of Distributed Solar Ariz. Rooftops Key to Unlocking the Potential of Distributed Solar July 12, 2010 - 3:51pm Addthis APS will install solar photovoltaic panels like these in Castro Valley, Calif. for a pilot project studying distributed energy in Flagstaff, Ariz. | Photo courtesy of APS APS will install solar photovoltaic panels like these in Castro Valley, Calif. for a pilot project studying distributed energy in Flagstaff, Ariz. | Photo courtesy of APS Nestled in the mountains of northern Arizona and just 75 miles from Grand Canyon National Park, the city of Flagstaff, Ariz. is an ideal city for the Arizona Public Service (APS) to pilot a high concentration of solar photovoltaic energy systems. "Flagstaff is unique electrically," says Eran Mahrer, Director of Renewable

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


21

Modeling the U.S. Rooftop Photovoltaics Market  

DOE Green Energy (OSTI)

Global rooftop PV markets are growing rapidly, fueled by a combination of declining PV prices and several policy-based incentives. The future growth, and size, of the rooftop market is highly dependent on continued PV cost reductions, financing options, net metering policy, carbon prices and future incentives. Several PV market penetration models, sharing a similar structure and methodology, have been developed over the last decade to quantify the impacts of these factors on market growth. This study uses a geospatially rich, bottom-up, PV market penetration model--the Solar Deployment Systems (SolarDS) model developed by the National Renewable Energy Laboratory--to explore key market and policy-based drivers for residential and commercial rooftop PV markets. The identified drivers include a range of options from traditional incentives, to attractive customer financing options, to net metering and carbon policy.

Drury, E.; Denholm, P.; Margolis, R.

2010-09-01T23:59:59.000Z

22

SunShot Initiative: Rooftop Solar Challenge  

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

Challenge Challenge Team Map Rooftop Solar Challenge II teams are scaling up the nation's most effective approaches to local solar market transformation and soft cost reduction, while driving new innovations that decrease the cost of solar deployment. Find your local team on our map. Image of a map showing the location of Rooftop Solar Challenge II teams. The Rooftop Solar Challenge aims to reduce the cost of rooftop solar energy systems through improved permitting, financing, zoning, net metering, and interconnection processes for residential and small commercial photovoltaic (PV) installations. Launched in February 2012, the first round of the Rooftop Solar Challenge supported one-year projects for 22 regional teams. The aggregated efforts of Rooftop Solar Challenge I teams cut permitting time by 40% and reduced permitting costs by 12% for more than 47 million Americans, cutting hundreds of years of red tape from the process of going solar.

23

Next Generation Rooftop Unit | Department of Energy  

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

Next Generation Rooftop Unit Next Generation Rooftop Unit Next Generation Rooftop Unit The U.S. Department of Energy is currently conducting research in a next generation rooftop unit (RTU). More than half of U.S. commercial building space is cooled by packaged heating, ventilation, and air conditioning (HVAC) equipment. Existing rooftop HVAC units consume more than 1.3% of the United States' annual energy usage annually. Project Description This project seeks to evaluate optimal design strategies for significantly improving the efficiency of rooftop units. The primary market for this project is commercial buildings, such as supermarkets and hotels. Project Partners Research is being undertaken through a cooperative research and development agreement (CRADA) between the Department of Energy and Oak Ridge National

24

Department of Veterans Affairs, FONSI - Rooftop solar PV power...  

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

Rooftop solar PV power at Calverton National Cemetery Department of Veterans Affairs, FONSI - Rooftop solar PV power at Calverton National Cemetery An Environmental Assessment (EA)...

25

Phoenix American Rooftop Solar Technologies | Open Energy Information  

Open Energy Info (EERE)

Rooftop Solar Technologies Jump to: navigation, search Name Phoenix American Rooftop Solar Technologies Place Michigan Zip 48168 Sector Solar Product Manufacturer of solar power...

26

A Statistical Pattern Analysis Framework for Rooftop Unit Diagnostics  

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

A Statistical Pattern Analysis Framework for Rooftop Unit Diagnostics Title A Statistical Pattern Analysis Framework for Rooftop Unit Diagnostics Publication Type Journal Article...

27

Smart Solar Rooftops  

competing with fossil fuels on the energy market, so producing high-efficiency while maintaining a low cost is a major priority for the solar industry.

28

SunShot Initiative: Rooftop Solar Challenge I Teams  

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

Rooftop Solar Challenge I Teams Rooftop Solar Challenge I Teams to someone by E-mail Share SunShot Initiative: Rooftop Solar Challenge I Teams on Facebook Tweet about SunShot Initiative: Rooftop Solar Challenge I Teams on Twitter Bookmark SunShot Initiative: Rooftop Solar Challenge I Teams on Google Bookmark SunShot Initiative: Rooftop Solar Challenge I Teams on Delicious Rank SunShot Initiative: Rooftop Solar Challenge I Teams on Digg Find More places to share SunShot Initiative: Rooftop Solar Challenge I Teams on AddThis.com... Concentrating Solar Power Photovoltaics Systems Integration Balance of Systems Reducing Non-Hardware Costs Lowering Barriers Fostering Growth Rooftop Solar Challenge I Teams The first round of the Rooftop Solar Challenge supported 22 teams working to spur solar power deployment by cutting red tape and improving finance

29

High Performance Computing  

Science Conference Proceedings (OSTI)

High Performance Computing. Summary: High Performance Computing (HPC) enables work on challenging problems that ...

2012-03-05T23:59:59.000Z

30

Assessment of Commercial Space Conditioning Technologies: Variable Capacity Rooftop Units  

Science Conference Proceedings (OSTI)

Space conditioning in U.S. commercial buildings is commonly performed by a packaged air-source rooftop unit (RTU). In recent years, heating, ventilation, and air-conditioning (HVAC) manufacturers have begun to develop RTUs with higher efficiency through the implementation of variable capacity technology. Variable capacity RTUs potentially offer electric utilities a new resource for achieving energy and peak power reduction. This document aims to serve as a resource for electric utilities in ...

2013-12-16T23:59:59.000Z

31

Estimating solar access of typical residential rooftops: A case study in San Jose, CA  

E-Print Network (OSTI)

the solar access of rooftop solar-energy systems, includingthe solar access of rooftop solar-energy systems, includingof shading on residential rooftop solar access in various

Levinson, Ronnen M

2008-01-01T23:59:59.000Z

32

Desiccant-Based Combined Systems: Integrated Active Desiccant Rooftop Hybrid System Development and Testing Final Report- Phase 4  

SciTech Connect

This report summarizes the results of a research and development (R&D) program to design and optimize an active desiccant-vapor compression hybrid rooftop system. The primary objective was to combine the strengths of both technologies to produce a compact, high-performing, energy-efficient system that could accommodate any percentage of outdoor air and deliver essentially any required combination of temperature and humidity, or sensible heat ratio (SHR). In doing so, such a product would address the significant challenges imposed on the performance capabilities of conventional packaged rooftop equipment by standards 62 and 90.1 of the American Society of Heating, Refrigerating and Air-Conditioning Engineers. The body of work completed as part of this program built upon previous R&D efforts supported by the U.S. Department of Energy and summarized by the Phase 3b report ''Active Desiccant Dehumidification Module Integration with Rooftop Packaged HVAC Units'' (Fischer and Sand 2002), in addition to Fischer, Hallstrom, and Sand 2000; Fischer 2000; and Fischer and Sand 2004. All initial design objectives established for this development program were successfully achieved. The performance flexibility desired was accomplished by a down-sized active desiccant wheel that processes only a portion of the supply airflow, which is pre-conditioned by a novel vapor compression cycle. Variable-speed compressors are used to deliver the capacity control required by a system handling a high percentage of outdoor air. An integrated direct digital control system allows for control capabilities not generally offered by conventional packaged rooftop systems. A 3000-cfm prototype system was constructed and tested in the SEMCO engineering test laboratory in Columbia, MO, and was found to operate in an energy-efficient fashion relative to more conventional systems. Most important, the system offered the capability to independently control the supply air temperature and humidity content to provide individual sensible and latent loads required by an occupied space without over-cooling and reheating air. The product was developed using a housing construction similar to that of a conventional packaged rooftop unit. The resulting integrated active desiccant rooftop (IADR) is similar in size to a currently available conventional rooftop unit sized to provide an equivalent total cooling capacity. Unlike a conventional rooftop unit, the IADR can be operated as a dedicated outdoor air system processing 100% outdoor air, as well as a total conditioning system capable of handling any ratio of return air to outdoor air. As part of this R&D program, a detailed investigation compared the first cost and operating cost of the IADR with costs for a conventional packaged approach for an office building located in Jefferson City, MO. The results of this comparison suggest that the IADR approach, once commercialized, could be cost-competitive with existing technology--exhibiting a one-year to two-year payback period--while simultaneously offering improved humidity control, indoor air quality, and energy efficiency.

Fischer, J

2005-05-06T23:59:59.000Z

33

DEVELOPMENT OF 20 IEER ROOFTOP UNITS A SIMULATION STUDY  

Science Conference Proceedings (OSTI)

Based on detailed steady-state system and component modeling, we developed a rooftop unit system design, which is able to achieve IEER (Integrated Energy Efficiency Ratio) higher than 20. We modeled fin-&-tube and micro-channel heat exchangers using segment-to-segment approach, and use ARI 10-coefficient compressor map to simulate compressor performance. The system modeling is based on a component-based modeling approach, which facilitates flexible simulation of complicated system configurations. Starting with a baseline system having IEER of 16.6, we extensively investigated numerous technical options, i.e. varying compressor sizes, heat exchanger fin densities, fin-&-tube or micro-channel heat exchanger, suction line heat exchanger, desiccant wheel, tandem compressor, variable-speed compressor, and condenser evaporative pre-cooling; and developed an innovative system configuration combining a tandem compression system with a variable-speed compression system. The combined system can achieve high IEER as well as process the outdoor ventilation air over an extensive range. We successfully evaluated the design concept for a 20-ton unit as well as a 10-ton unit. All the selected components are readily accessible on the market, and we validated the performance predictions against existing RTU products at the rating condition. This paper illustrates a potentially cost-effective high IEER RTU design.

Shen, Bo [ORNL; Rice, C Keith [ORNL; Vineyard, Edward [Oak Ridge National Laboratory (ORNL)

2012-01-01T23:59:59.000Z

34

High Performance Computing  

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

Information Science, Computing, Applied Math High Performance Computing High Performance Computing Providing world-class high performance computing capability that enables...

35

Rooftop PV system. Final technical progress report, Phase II  

SciTech Connect

Under this four-year PV:BONUS Program, ECD and United Solar are developing and demonstrating two new lightweight flexible building integrated Photovoltaic (BIPV) modules specifically designed as exact replacements for conventional asphalt shingles and standing seam metal roofing. These modules can be economically and aesthetically integrated into new residential and commercial buildings, and address the even larger roofing replacement market. The modules are designed to be installed by roofing contractors without special training which minimizes the installation and balance of system costs. The modules will be fabricated from high-efficiency, multiple-junction a-Si alloy solar cells developed by ECD and United Solar. Under the Phase I Program, which ended in March 1994, we developed two different concept designs for rooftop PV modules: (1) the United Solar overlapping (asphalt shingle replacement) shingle-type modules and (2) the ECD metal roof-type modules. We also developed a plan for fabricating, testing and demonstrating these modules. Candidate demonstration sites for our rooftop PV modules were identified and preliminary engineering designs for these demonstrations were developed; a marketing study plan was also developed. The major objectives of the Phase II Program, which started in June 1994 was (1) to develop, test, and qualify these new rooftop modules; (2) to develop mechanical and electrical engineering specifications for the demonstration projects; and (3) to develop a marketing/commercialization plan.

1995-08-01T23:59:59.000Z

36

SunShot Initiative: Deployable Commercial Rooftop Solar Electric System  

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

Deployable Commercial Rooftop Deployable Commercial Rooftop Solar Electric System to someone by E-mail Share SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Facebook Tweet about SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Twitter Bookmark SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Google Bookmark SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Delicious Rank SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Digg Find More places to share SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on AddThis.com... Concentrating Solar Power Photovoltaics Systems Integration Research, Development, & Demonstration Competitive Awards Solar Utility Networks: Replicable Innovations in Solar Energy

37

Energy Department Loan Guarantee Would Support Large-Scale Rooftop...  

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

Loan Guarantee Would Support Large-Scale Rooftop Solar Power for U.S. Military Housing Energy Department Loan Guarantee Would Support Large-Scale Rooftop Solar Power for U.S....

38

Rooftop Solar Challenge to Cut Solar's Red Tape | Department...  

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

Rooftop Solar Challenge to Cut Solar's Red Tape Rooftop Solar Challenge to Cut Solar's Red Tape December 1, 2011 - 4:35pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor...

39

Southern California Edison's Solar Rooftop Program  

Science Conference Proceedings (OSTI)

SCEs Solar Rooftop Program is, in many respects, a trailblazing utility-owned distributed PV initiative that other utilities across the country are either emulating or using as a basis for informing their own projects. A review of SCEs program demonstrates a number of best practices that can be applicable to other similar efforts.

2012-10-24T23:59:59.000Z

40

Solar access of residential rooftops in four California cities  

Science Conference Proceedings (OSTI)

Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes residential rooftop shading in Sacramento, San Jose, Los Angeles and San Diego, CA. Our analysis can be used to better estimate power production and/or thermal collection by rooftop solar-energy equipment. It can also be considered when designing programs to plant shade trees. High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a well-treed 2.5-4 km{sup 2} residential neighborhood. On-hour shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Values in future years were determined by repeating these calculations after simulating tree growth. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels. For the subset of S + SW + W-facing planes on which solar equipment is commonly installed for maximum solar access, absolute light loss in spring, summer and fall peaked about 2 to 4 h after sunrise and about 2 to 4 h before sunset. The fraction of annual insolation lost to shading increased from 0.07-0.08 in the year of surface-height measurement to 0.11-0.14 after 30 years of tree growth. Only about 10% of this loss resulted from shading by trees and buildings in neighboring parcels. (author)

Levinson, Ronnen; Akbari, Hashem; Pomerantz, Melvin [Heat Island Group, Lawrence Berkeley National Laboratory (United States); Gupta, Smita [California Energy Commission, Sacramento, CA 95814 (United States)

2009-12-15T23:59:59.000Z

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


41

Solar access of residential rooftops in four California cities  

DOE Green Energy (OSTI)

Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes residential rooftop shading in Sacramento, San Jose, Los Angeles and San Diego, CA. Our analysis can be used to better estimate power production and/or thermal collection by rooftop solar-energy equipment. It can also be considered when designing programs to plant shade trees. High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a well-treed 2.5-4 km{sup 2} residential neighborhood. On-hour shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Values in future years were determined by repeating these calculations after simulating tree growth. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels. For the subset of S+SW+W-facing planes on which solar equipment is commonly installed for maximum solar access, absolute light loss in spring, summer and fall peaked about two to four hours after sunrise and about two to four hours before sunset. The fraction of annual insolation lost to shading increased from 0.07-0.08 in the year of surface-height measurement to 0.11-0.14 after 30 years of tree growth. Only about 10% of this loss results from shading by trees and buildings in neighboring parcels.

Levinson, Ronnen; Akbari, Hashem; Pomerantz, Melvin

2010-05-14T23:59:59.000Z

42

Development of 20 IEER Rooftop Units System Modeling and Building Energy Simulations  

Science Conference Proceedings (OSTI)

Based on detailed steady-state system and component modeling, we developed a rooftop unit system design, which is able to achieve IEER (Integrated Energy Efficiency Ratio) higher than 20. We modeled fin-&-tube and micro-channel heat exchangers using segment-to-segment approach, and use AHRI 10-coefficient compressor map to simulate compressor performance. The system modeling is based on a component-based modeling approach, which facilitates flexible simulation of complicated system configurations. Starting with a baseline system having IEER of 16.6, we extensively investigated numerous technical options, i.e. varying compressor sizes, heat exchanger fin densities, fin-&-tube or micro-channel heat exchanger, suction line heat exchanger, desiccant wheel, tandem compressor, variable-speed compressor, and condenser evaporative pre-cooling; and developed an innovative system configuration combining a tandem compression system with a variable-speed compression system. The combined system can achieve high IEER as well as process the outdoor ventilation air over an extensive range. We successfully evaluated the design concept for a 20-ton (70.4 kW) unit as well as a 10-ton (35.2 kW) unit. All the selected components are readily accessible on the market, and we validated the performance predictions against existing Rooftop Unit (RTU) products at the rating condition. This paper illustrates a potentially cost-effective high IEER RTU design. In addtion, we conducted extensive building energy simulations using EnergyPlus to predict seasonal energy saving potentials and peak power reductions using the High IEER RTU in sixteen US cities, in comparison to a RTU with a minimum efficiency.

Shen, Bo [ORNL; Rice, C Keith [ORNL; Vineyard, Edward [Oak Ridge National Laboratory (ORNL)

2013-01-01T23:59:59.000Z

43

High Performance Computing in  

E-Print Network (OSTI)

High Performance Computing in Bioinformatics Thomas Ludwig (t.ludwig@computer.org) Ruprecht PART I: High Performance Computing Thomas Ludwig PART II: HPC Computing in Bioinformatics Alexandros #12;© Thomas Ludwig, Alexandros Stamatakis, GCB'04 3 PART I High Performance Computing Introduction

Stamatakis, Alexandros

44

Test plan : reducing soft costs of rooftop solar installations attributed to structural considerations.  

SciTech Connect

This test plan is a document that provides a systematic approach to the planned testing of rooftop structures to determine their actual load carrying capacity. This document identifies typical tests to be performed, the responsible parties for testing, the general feature of the tests, the testing approach, test deliverables, testing schedule, monitoring requirements, and environmental and safety compliance.

Dwyer, Stephen F.

2013-05-01T23:59:59.000Z

45

High Performance Computing  

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

Information Science, Computing, Applied Math » Information Science, Computing, Applied Math » High Performance Computing High Performance Computing Providing world-class high performance computing capability that enables unsurpassed solutions to complex problems of strategic national interest Gary Grider High Performance Computing Division Leader Randal Rheinheimer High Performance Computing Deputy Division Leader Contact Us Carol Hogsett Student/Internship Opportunities Email Division Office Email Managing world-class supercomputing centers Powerall simulations modeling Read caption + The Powerwall is used by LANL scientists to view objects and processes in 3D. High Performance Computing video 13:01 Gary Grider, HPC Divison Leader The High Performance Computing (HPC) Division supports the Laboratory mission by managing world-class Supercomputing Centers.

46

Energy Department Loan Guarantee Would Support Large-Scale Rooftop...  

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

the photovoltaic (PV) systems. "This is the largest domestic residential rooftop solar project in history," said Secretary Chu. "This groundbreaking project is expected to create...

47

Solar access of residential rooftops in four California cities  

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

panels and thermal collectors. This study characterizes residential rooftop shading in Sacramento, San Jose, Los Angeles and San Diego, CA. Our analysis can be used to better...

48

.NET High Performance Computing.  

E-Print Network (OSTI)

?? Graphics Processing Units (GPUs) have been extensively applied in the High Performance Computing (HPC) community. HPC applications require additional special programming environments to improve (more)

Ou, Hsuan-Hsiu

2012-01-01T23:59:59.000Z

49

High Performance Tooling Materials  

Science Conference Proceedings (OSTI)

High performance tools are necessary for the successful manufacturing of every consumer product as well as oil drilling and mining operations. Increasing...

50

CREATING A SOLAR CITY Determining the Potential of Solar Rooftop  

E-Print Network (OSTI)

CREATING A SOLAR CITY Determining the Potential of Solar Rooftop Systems in the City of Newark of Solar Rooftop Systems in the City of Newark Final Report Renewable Energy Applications for Delaware-8405 Telefax: (302) 831-3098 Website: http://ceep.udel.edu #12;CREATING A SOLAR CITY Determining the Potential

Delaware, University of

51

High performance systems  

SciTech Connect

This document provides a written compilation of the presentations and viewgraphs from the 1994 Conference on High Speed Computing given at the High Speed Computing Conference, {open_quotes}High Performance Systems,{close_quotes} held at Gleneden Beach, Oregon, on April 18 through 21, 1994.

Vigil, M.B. [comp.

1995-03-01T23:59:59.000Z

52

Property:PotentialRooftopPVGeneration | Open Energy Information  

Open Energy Info (EERE)

PotentialRooftopPVGeneration PotentialRooftopPVGeneration Jump to: navigation, search Property Name PotentialRooftopPVGeneration Property Type Quantity Description The estimated potential energy generation from Rooftop PV for a particular place. Use this type to express a quantity of energy. The default unit for energy on OpenEI is the Kilowatt hour (kWh), which is 3,600,000 Joules. http://en.wikipedia.org/wiki/Unit_of_energy It's possible types are Watt hours - 1000 Wh, Watt hour, Watthour Kilowatt hours - 1 kWh, Kilowatt hour, Kilowatthour Megawatt hours - 0.001 MWh, Megawatt hour, Megawatthour Gigawatt hours - 0.000001 GWh, Gigawatt hour, Gigawatthour Joules - 3600000 J, Joules, joules Pages using the property "PotentialRooftopPVGeneration" Showing 25 pages using this property. (previous 25) (next 25)

53

High Performance Sustainable Buildings  

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

become a High Performance Sustainable Building in 2013. On the former County landfill, a photovoltaic array field uses solar energy to provide power for Los Alamos County and the...

54

High Performance Computing  

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

High Performance Computing Managing world-class supercomputing centers Read caption + The Powerwall is used by LANL scientists to view objects and processes in 3D. 13:01 Gary...

55

Field Demonstration of Active Desiccant Modules Designed to Integrate with Standard Unitary Rooftop Package Equipment - Final Report: Phase 3  

SciTech Connect

This report summarizes the investigation of two active desiccant module (ADM) pilot site installations initiated in 2001. Both pilot installations were retrofits at existing facilities served by conventional heating, ventilating, and air-conditioning (HVAC) systems that had encountered frequent humidity control, indoor air quality (IAQ), and other operational problems. Each installation involved combining a SEMCO, Inc., ADM (as described in Fischer and Sand 2002) with a standard packaged rooftop unit built by the Trane Company. A direct digital control (DDC) system integral to the ADM performed the dual function of controlling the ADM/rooftop combination and facilitating data collection, trending, and remote performance monitoring. The first installation involved providing preconditioned outdoor air to replace air exhausted from the large kitchen hood and bathrooms of a Hooters restaurant located in Rome, Georgia. This facility had previously added an additional rooftop unit in an attempt to achieve occupant comfort without success. The second involved conditioning the outdoor air delivered to each room of a wing of the Mountain Creek Inn at the Callaway Gardens resort. This hotel, designed in the ''motor lodge'' format with each room opening to the outdoors, is located in southwest Georgia. Controlling the space humidity always presented a serious challenge. Uncomfortable conditions and musty odors had caused many guests to request to move to other areas within the resort. This is the first field demonstration performed by Oak Ridge National Laboratory where significant energy savings, operating cost savings, and dramatically improved indoor environmental conditions can all be claimed as the results of a retrofit desiccant equipment field installation. The ADM/rooftop combination installed at the restaurant resulted in a reduction of about 34% in the electricity used by the building's air-conditioning system. This represents a reduction of approximately 15% in overall electrical energy consumption and a 12.5-kW reduction in peak demand. The cost of gas used for regeneration of the desiccant wheel over this period of time is estimated to be only $740, using a gas cost of $0.50 per therm--the summer rate in 2001. The estimated net savings is $5400 annually, resulting in a 1-2 year payback. It is likely that similar energy/cost savings were realized at the Callaway Gardens hotel. In this installation, however, a central plant supplied the chilled water serving fan coil units in the hotel wing retrofitted with the ADM, so it was not metered separately. Consequently, the owner could not provide actual energy consumption data specific to the facility. The energy and operating cost savings at both sites are directly attributable to higher cooling-season thermostat settings and decreased conventional system run times. These field installations were selected as an immediate and appropriate response to correct indoor humidity and fresh air ventilation problems being experienced by building occupants and owners, so no rigorous baseline-building vs. test-building energy use/operating cost savings results can be presented. The report presents several simulated comparisons between the ADM/roof HVAC approach and other equipment combinations, where both desiccant and conventional systems are modeled to provide comparable fresh air ventilation rates and indoor humidity levels. The results obtained from these simulations demonstrate convincingly the energy and operating cost savings obtainable with this hybrid desiccant/vapor-compression technology, verifying those actually seen at the pilot installations. The ADM approach is less expensive than conventional alternatives providing similar performance and indoor air quality and provides a very favorable payback (1 year or so) compared with oversized rooftop units that cannot be operated effectively with the necessary high outdoor air percentages.

Fischer, J

2004-03-15T23:59:59.000Z

56

High Performance Window Attachments  

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

High Performance Window High Performance Window Attachments D. Charlie Curcija Lawrence Berkeley National Laboratory dccurcija@lbl.gov 510-495-2602 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Impact of Project: * Motivate manufacturers to make improvements in Window systems U-Factors, SHGC and daylighting utilization * Increase awareness of benefits from energy efficient window attachments Problem Statement: * A wide range of residential window attachments are available, but they have widely unknown

57

Detection of Rooftop Cooling Unit Faults Based on Electrical Measurements  

Science Conference Proceedings (OSTI)

Non-intrusive load monitoring (NILM) is accomplished by sampling voltage and current at high rates and reducing the resulting start transients or harmonic contents to concise ''signatures''. Changes in these signatures can be used to detect, and in many cases directly diagnose, equipment and component faults associated with roof-top cooling units. Use of the NILM for fault detection and diagnosis (FDD) is important because (1) it complements other FDD schemes that are based on thermo-fluid sensors and analyses and (2) it is minimally intrusive (one measuring point in the relatively protected confines of the control panel) and therefore inherently reliable. This paper describes changes in the power signatures of fans and compressors that were found, experimentally and theoretically, to be useful for fault detection.

Armstrong, Peter R.; Laughman, C R.; Leeb, S B.; Norford, L K.

2006-01-31T23:59:59.000Z

58

High Performance Windows Volume Purchase: About the High Performance  

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

High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program to someone by E-mail Share High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Facebook Tweet about High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Twitter Bookmark High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Google Bookmark High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Delicious Rank High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Digg Find More places to share High Performance Windows Volume Purchase:

59

High performance steam development  

SciTech Connect

DOE has launched a program to make a step change in power plant to 1500 F steam, since the highest possible performance gains can be achieved in a 1500 F steam system when using a topping turbine in a back pressure steam turbine for cogeneration. A 500-hour proof-of-concept steam generator test module was designed, fabricated, and successfully tested. It has four once-through steam generator circuits. The complete HPSS (high performance steam system) was tested above 1500 F and 1500 psig for over 102 hours at full power.

Duffy, T.; Schneider, P.

1995-12-31T23:59:59.000Z

60

SunShot Rooftop Challenge Awardees | Department of Energy  

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

SunShot Rooftop Challenge Awardees SunShot Rooftop Challenge Awardees SunShot Rooftop Challenge Awardees December 1, 2011 - 11:54am Addthis SUNSHOT ROOFTOP SOLAR CHALLENGE December 1, 2011 Awardee Name Location Population Estimate Award Amount Project Highlights Arizona Governor's Office of Energy Policy City of Flagstaff, City of Phoenix, City of Tucson, Arizona State University's Global Institute of Sustainability, and SmartPower Arizona 2,031,618 $708,992 The Arizona Governor's Office of Energy Policy will identify best practices in finance, permitting, and zoning to move toward voluntary statewide uniformity. The project will drive adoption of an online system in five jurisdictions that allows for over-the-counter/same-day permit review. Broward County

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


61

Property:PotentialRooftopPVCapacity | Open Energy Information  

Open Energy Info (EERE)

PotentialRooftopPVCapacity PotentialRooftopPVCapacity Jump to: navigation, search Property Name PotentialRooftopPVCapacity Property Type Quantity Description The nameplate capacity technical potential from Rooftop PV for a particular place. Use this property to express potential electric energy generation, such as Nameplate Capacity. The default unit is megawatts (MW). For spatial capacity, use property Volume. Acceptable units (and their conversions) are: 1 MW,MWe,megawatt,Megawatt,MegaWatt,MEGAWATT,megawatts,Megawatt,MegaWatts,MEGAWATT,MEGAWATTS 1000 kW,kWe,KW,kilowatt,KiloWatt,KILOWATT,kilowatts,KiloWatts,KILOWATT,KILOWATTS 1000000 W,We,watt,watts,Watt,Watts,WATT,WATTS 1000000000 mW,milliwatt,milliwatts,MILLIWATT,MILLIWATTS 0.001 GW,gigawatt,gigawatts,Gigawatt,Gigawatts,GigaWatt,GigaWatts,GIGAWATT,GIGAWATTS

62

SunShot Initiative: Rooftop Solar Challenge I Teams  

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

Challenge I Teams The first round of the Rooftop Solar Challenge supported 22 teams working to spur solar power deployment by cutting red tape and improving finance options. By...

63

Rooftop Solar Challenge to Cut Solar's Red Tape | Department...  

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

Challenge to Cut Solar's Red Tape Rooftop Solar Challenge to Cut Solar's Red Tape December 1, 2011 - 4:35pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor for...

64

New and Underutilized Technology: Advanced Rooftop Packaged Air...  

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

category are rooftop units that have: Condensing units that drain to the interior of the building. Better insulation. Duct dampers that prevent off-cycle losses due to convection...

65

Rooftop Membrane Temperature Reductions with Green Roof Technology in South-Central Texas  

E-Print Network (OSTI)

Early green roof cooling and energy reduction research in North America took place in Canada and the northern latitudes of the United States, where green roofs reduced rooftop temperatures by 70% to 90%. Less is known about green roof technology in the southern Untied States; where energy demand for cooling buildings is high, and the urban heat island effect is more pronounced. This paper reports early findings for rooftop membrane temperature reductions from 11.6-cm-deep modular green roof trays, typical of large-scaled, low-maintenance applications. Measurements observed during May, 2010 reveal that temperatures below the modular planted green roof units were 82% to 91.6% cooler compared to the surface temperatures of the control roof membrane. These findings on low-input modular green roof trays reinforce other research findings that indicate green roof technology can dramatically reduce and modify temperatures on roof deck surfaces during peak energy demand periods in hot sunny climates.

Dvorak, B.

2010-08-01T23:59:59.000Z

66

High Performance Computing School COMSC  

E-Print Network (OSTI)

High Performance Computing School COMSC This module aims to provide the students with fundamental knowledge and understanding of techniques associated with High Performance Computing and its practical' skills in analysing and evaluating High Performance Computing and will be structured around

Martin, Ralph R.

67

High Performance Computing: Modeling & Simulation  

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

High Performance Computing: Modeling & Simulation High Performance Computing: Modeling & Simulation Express Licensing Adaptive Real-Time Methodology for Optimizing Energy-Efficient...

68

High Performance Buildings Database  

DOE Data Explorer (OSTI)

The High Performance Buildings Database is a shared resource for the building industry. The Database, developed by the U.S. Department of Energy and the National Renewable Energy Laboratory (NREL), is a unique central repository of in-depth information and data on high-performance, green building projects across the United States and abroad. The Database includes information on the energy use, environmental performance, design process, finances, and other aspects of each project. Members of the design and construction teams are listed, as are sources for additional information. In total, up to twelve screens of detailed information are provided for each project profile. Projects range in size from small single-family homes or tenant fit-outs within buildings to large commercial and institutional buildings and even entire campuses.

The Database is a data repository as well. A series of Web-based data-entry templates allows anyone to enter information about a building project into the database. Once a project has been submitted, each of the partner organizations can review the entry and choose whether or not to publish that particular project on its own Web site. Early partners using the database include:

  • The Federal Energy Management Program
  • The U.S. Green Building Council
  • The American Institute of Architects' Committee on the Environment
  • The Massachusetts Technology Collaborative
  • Efficiency Vermont
    • Copied (then edited) from http://eere.buildinggreen.com/partnering.cfm

69

Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners  

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

Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners Title Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners Publication Type Conference Proceedings Year of Publication 2000 Authors Shugars, John, Philip Coleman, Christopher T. Payne, and Laura Van Wie McGrory Conference Name Proceedings from the 2000 ACEEE Summer Study on Energy Efficiency in Buildings Volume 10 Pagination 217-226 Date Published 01/2000 Abstract The energy efficiency ofmany products has increased markedly over the past decade. A conspicuous exception to this trend is commercialpackaged rooftop air conditioners, which have experiencedlittle to no efficiency improvement since 1992 when the Energy Policy Act of 1992 imposed federal minimum standards. Packaged rooftop units have been estimated to use on the order of76 billion kWh annually in the US, at a cost ofroughly $5.6 billion. Sales of these units are growing, and the majority of units sold have energy efficiency ratios (EERs) at orjust above the current national minimum efficiency standards. In this paper we document the static efficiencies ofcommercialpackaged air conditioners, explore the reasons behindthis efficiency gap, and assess opportunities for overcoming the barriers to efficiency improvements in these products.

70

High Performance Network Monitoring  

SciTech Connect

Network Monitoring requires a substantial use of data and error analysis to overcome issues with clusters. Zenoss and Splunk help to monitor system log messages that are reporting issues about the clusters to monitoring services. Infiniband infrastructure on a number of clusters upgraded to ibmon2. ibmon2 requires different filters to report errors to system administrators. Focus for this summer is to: (1) Implement ibmon2 filters on monitoring boxes to report system errors to system administrators using Zenoss and Splunk; (2) Modify and improve scripts for monitoring and administrative usage; (3) Learn more about networks including services and maintenance for high performance computing systems; and (4) Gain a life experience working with professionals under real world situations. Filters were created to account for clusters running ibmon2 v1.0.0-1 10 Filters currently implemented for ibmon2 using Python. Filters look for threshold of port counters. Over certain counts, filters report errors to on-call system administrators and modifies grid to show local host with issue.

Martinez, Jesse E [Los Alamos National Laboratory

2012-08-10T23:59:59.000Z

71

Unleashing Rooftop Solar Energy through More Efficient Government |  

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

Unleashing Rooftop Solar Energy through More Efficient Government Unleashing Rooftop Solar Energy through More Efficient Government Unleashing Rooftop Solar Energy through More Efficient Government June 1, 2011 - 11:45am Addthis Solar panels on the roof of the Department of Energy Forrestal Building in Washington, D.C. | Credit: DOE photo Solar panels on the roof of the Department of Energy Forrestal Building in Washington, D.C. | Credit: DOE photo Ramamoorthy Ramesh Former Director, SunShot Initiative & Solar Energy Technologies Program How can I participate? Teams can include large individual cities or metropolitan areas, regional groups of local governments, states, and Indian Tribes. The Department anticipates providing funding for up to 25 awardees. Learn more here: http://www.eere.energy.gov/solarchallenge/ Across the country, the race is on to drive down the cost of solar energy.

72

Energy Department Finalizes Loan Guarantee for Transformational Rooftop  

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

Loan Guarantee for Transformational Loan Guarantee for Transformational Rooftop Solar Project Energy Department Finalizes Loan Guarantee for Transformational Rooftop Solar Project September 30, 2011 - 3:37pm Addthis Washington D.C. - U.S. Energy Secretary Steven Chu today announced that the Department has finalized a partial guarantee for a $1.4 billion loan to support Project Amp. The solar generation project includes the installation of approximately 752 megawatts (MW) of photovoltaic (PV) solar panels, which is over 80% of the total amount of PV installed in the U.S. in 2010. Project Amp will support the installation of solar panels across approximately 750 existing rooftops owned and managed by Prologis. The electricity generated from those panels will contribute directly to the electrical grid. The project sponsor estimates Project Amp will create

73

Energy Department Finalizes Loan Guarantee for Transformational Rooftop  

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

for Transformational for Transformational Rooftop Solar Project Energy Department Finalizes Loan Guarantee for Transformational Rooftop Solar Project September 30, 2011 - 3:37pm Addthis Washington D.C. - U.S. Energy Secretary Steven Chu today announced that the Department has finalized a partial guarantee for a $1.4 billion loan to support Project Amp. The solar generation project includes the installation of approximately 752 megawatts (MW) of photovoltaic (PV) solar panels, which is over 80% of the total amount of PV installed in the U.S. in 2010. Project Amp will support the installation of solar panels across approximately 750 existing rooftops owned and managed by Prologis. The electricity generated from those panels will contribute directly to the electrical grid. The project sponsor estimates Project Amp will create

74

Department of Energy Commits Support for Landmark Rooftop Solar Project |  

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

Commits Support for Landmark Rooftop Solar Commits Support for Landmark Rooftop Solar Project Department of Energy Commits Support for Landmark Rooftop Solar Project June 22, 2011 - 12:00am Addthis Washington D.C. - U.S. Energy Secretary Steven Chu today announced the offer of a conditional commitment to provide a partial guarantee for a $1.4 billion loan to support Project Amp. This project will support the installation of solar panels on industrial buildings across the country, with the electricity generated from those panels contributing directly to the electrical grid, as opposed to powering the buildings where they are installed. Supported by funding from the 2009 stimulus bill, the solar generation project includes the installation of approximately 733 megawatts (MW) of photovoltaic (PV) solar panels, which is nearly equal to the total

75

Rooftop Solar Challenge: Empowering Innovators to Reach for the Sun |  

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

Challenge: Empowering Innovators to Reach for the Sun Challenge: Empowering Innovators to Reach for the Sun Rooftop Solar Challenge: Empowering Innovators to Reach for the Sun November 6, 2013 - 8:00am Addthis Checkout the infogaphic for an overview of the first round of the Rooftop Solar Challenge. | Infographic by Sarah Gerrity. Checkout the infogaphic for an overview of the first round of the Rooftop Solar Challenge. | Infographic by Sarah Gerrity. Minh Le Minh Le Program Manager, Solar Program Cyrus Wadia Assistant Director for Clean Energy and Materials R&D, The White House Office of Science and Technology Policy LEARN MORE Stay up to date on the Department's solar energy initiatives by visiting energy.gov/solar. View guidebooks, education curricula and other resources developed

76

Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners  

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

Bridging Bridging the Efficiency Gap: Commercial Packaged Rooftop Air Conditioners John Shugars, Consultant Philip Coleman, Lawrence BerkeleyNational Laboratory ChristopherPayne, Lawrence Berkeley National Laboratory Laura Van Wie McGrory, Lawrence Berkeley National Laboratory ABSTRACT The energy efficiency ofmany products has increased markedly over the past decade. A conspicuous exception to this trend is commercial packaged rooftop air conditioners, which have experiencedlittle to no efficiency improvement since 1992 when the Energy Policy Act of 1992 imposed federal minimum standards. Packaged rooftop units have been estimated to use on the order of76 billion kWh annually in the US, at a cost ofroughly $5.6 billion. Sales of these units are growing, and the majority of units sold have energy efficiency ratios (EERs) at orjust above the current national minimum efficiency

77

Photovoltaic array with minimally penetrating rooftop support system  

DOE Patents (OSTI)

A photovoltaic array including a plurality of photovoltaic assemblies and a plurality of mounting units. The mounting units each include an elongate rail and a plurality of leg assemblies. The rail is sized and configured to maintain a portion of at least two of the photovoltaic assemblies, with the leg assemblies extending from the rail in a spaced-apart fashion and terminating in a foot for placement against a rooftop structure for minimally penetration installation. Further, at least one of the leg assemblies can include a retractable leg. When the photovoltaic array is installed to a rooftop structure including a membrane intermittently secured to a rooftop deck, the retractable leg accommodates upward billowing of the membrane under windy conditions.

Lenox, Carl J.S.

2012-10-23T23:59:59.000Z

78

A 20-SUN HYBRID PV-THERMAL LINEAR MICRO-CONCENTRATOR SYSTEM FOR URBAN ROOFTOP APPLICATIONS  

E-Print Network (OSTI)

factor satisfies aesthetic demands for general rooftop solar technologies, and is a marked departure fromA 20-SUN HYBRID PV-THERMAL LINEAR MICRO-CONCENTRATOR SYSTEM FOR URBAN ROOFTOP APPLICATIONS D Walter has been developed specifically for urban rooftop environments. The light- weight, low-profile form

79

Introduction to High Performance Computing  

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

Introduction to High Performance Computing Introduction to High Performance Computing June 10, 2013 Photo on 7 30 12 at 7.10 AM Downloads Download File Gerber-HPC-2.pdf...

80

High Performance Computing contributions to  

E-Print Network (OSTI)

High Performance Computing contributions to DoD Mission Success 2002 #12;Approved for public/C nanotube in a field emitter configuration #12;HIGH PERFORMANCE COMPUTING contributions tocontributions ­ SECTION 1 INTRODUCTION 1 Introduction 3 Overview of the High Performance Computing Modernization Program 3

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


81

Creating high performance enterprises  

E-Print Network (OSTI)

How do enterprises successfully conceive, design, deliver, and operate large-scale, engineered systems? These large-scale projects often involve high complexity, significant technical challenges, a large number of diverse ...

Stanke, Alexis K. (Alexis Kristen), 1977-

2006-01-01T23:59:59.000Z

82

California Energy Commission "We have the largest rooftop solar  

E-Print Network (OSTI)

solar system in the nation!" Matt Muniz, P.E. Energy Program Manager Alameda County "With the Energy Commission's Energy Efficiency Financing Program we installed our 1.18 MW solar project at Santa Rita JailLOW INTEREST RATE LOANS AVAILABLE NOW! California Energy Commission "We have the largest rooftop

83

Improved Rooftop Detection in Aerial Images with Machine Learning  

Science Conference Proceedings (OSTI)

In this paper, we examine the use of machine learning to improve a rooftop detection process, one step in a vision system that recognizes buildings in overhead imagery. We review the problem of analyzing aerial images and describe an existing system ... Keywords: applications of learning, evaluation of algorithms, learning for computer vision, supervised learning

M. A. Maloof; P. Langley; T. O. Binford; R. Nevatia; S. Sage

2003-10-01T23:59:59.000Z

84

Rooftop Solar Potential Distributed Solar Power in NW  

E-Print Network (OSTI)

6/19/2013 1 Rooftop Solar Potential Distributed Solar Power in NW Massoud Jourabchi June 2013 1 in 2012 4 #12;6/19/2013 3 Regional Growth In Solar Energy Consumption Solar consumption both Thermal and PV h b t d i i lhas been on steady increase since early 1990s. From 2000-2010 Solar PV grow

85

LA Rooftop Solar Project Goes Online in San Fernando Valley | Department of  

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

LA Rooftop Solar Project Goes Online in San Fernando Valley LA Rooftop Solar Project Goes Online in San Fernando Valley LA Rooftop Solar Project Goes Online in San Fernando Valley June 26, 2013 - 4:52pm Addthis Installing a rooftop solar array as part of Los Angeles County's Feed-in Tariff program. | Photo courtesy of the Los Angeles Business Council. Installing a rooftop solar array as part of Los Angeles County's Feed-in Tariff program. | Photo courtesy of the Los Angeles Business Council. Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs LEARN MORE Watch a video on CLEAN LA Solar -- an initiative related to the Los Angeles feed-in tariff program. Read Mayor Antonio Villaraigosa's comments on LA's focus on rooftop solar. With 1 billion square feet of rooftop space and more than 300 days of

86

NREL-Optimizing Rooftop Space with SolOpt Presentation | Open Energy  

Open Energy Info (EERE)

NREL-Optimizing Rooftop Space with SolOpt Presentation NREL-Optimizing Rooftop Space with SolOpt Presentation Jump to: navigation, search Tool Summary Name: Optimizing Rooftop Space with SolOpt Agency/Company /Organization: National Renewable Energy Laboratory Sector: Energy Focus Area: Buildings, Solar Topics: Implementation, Technology characterizations Resource Type: Presentation, Guide/manual, Training materials Website: www.solaramericacities.energy.gov/pdfs/2010_annual_meeting/Thu400_SWH_ Optimizing Rooftop Space with SolOpt Screenshot References: Optimizing Rooftop Space with SolOpt[1] Logo: Optimizing Rooftop Space with SolOpt This presentation answers the question: "How do you decide what type of solar system should be used for a specific facility?" References ↑ "Optimizing Rooftop Space with SolOpt"

87

LA Rooftop Solar Project Goes Online in San Fernando Valley | Department of  

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

LA Rooftop Solar Project Goes Online in San Fernando Valley LA Rooftop Solar Project Goes Online in San Fernando Valley LA Rooftop Solar Project Goes Online in San Fernando Valley June 26, 2013 - 4:52pm Addthis Installing a rooftop solar array as part of Los Angeles County's Feed-in Tariff program. | Photo courtesy of the Los Angeles Business Council. Installing a rooftop solar array as part of Los Angeles County's Feed-in Tariff program. | Photo courtesy of the Los Angeles Business Council. Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs LEARN MORE Watch a video on CLEAN LA Solar -- an initiative related to the Los Angeles feed-in tariff program. Read Mayor Antonio Villaraigosa's comments on LA's focus on rooftop solar. With 1 billion square feet of rooftop space and more than 300 days of

88

High Performance and Sustainable Buildings Guidance | Department...  

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

High Performance and Sustainable Buildings Guidance High Performance and Sustainable Buildings Guidance High Performance and Sustainable Buildings Guidance More Documents &...

89

Part-Load Performance Characterization and Energy Savings Potential of the RTU Challenge Unit: Daikin Rebel  

SciTech Connect

In 2011, the U.S. Department of Energys Building Technology Office (DOEs BTO), with help from the Better Buildings Alliance (BBA) members, developed a specification for high performance rooftop air-conditioning units (RTU Challenge) with capacity ranges between 10 and 20 tons (DOE 2013). Daikins Rebel for the first rooftop unit system that was recognized by DOE in May 2012 as meeting the RTU Challenge specifications. This report documents the development of part-load performance curves and its use with EnergyPlus simulation tool to estimate the potential savings from use of Rebel compared to other standard options.

Wang, Weimin; Katipamula, Srinivas

2013-09-30T23:59:59.000Z

90

Sensitivity of Rooftop PV Projections in the SunShot Vision Study to Market Assumptions  

Science Conference Proceedings (OSTI)

The SunShot Vision Study explored the potential growth of solar markets if solar prices decreased by about 75% from 2010 to 2020. The SolarDS model was used to simulate rooftop PV demand for this study, based on several PV market assumptions--future electricity rates, customer access to financing, and others--in addition to the SunShot PV price projections. This paper finds that modeled PV demand is highly sensitive to several non-price market assumptions, particularly PV financing parameters.

Drury, E.; Denholm, P.; Margolis, R.

2013-01-01T23:59:59.000Z

91

Thrusts in High Performance Computing  

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

in HPC 1 Thrusts in High Performance Computing Science at Scale Petaflops to Exaflops Science through Volume Thousands to Millions of Simulations Science in Data Petabytes to...

92

High Performance Computing and Visualization Group ...  

Science Conference Proceedings (OSTI)

High Performance Computing and Visualization Group. Welcome. The High Performance Computing and Visualization Group. ...

2011-09-27T23:59:59.000Z

93

Blade Offset and Pitch Effects on a High Solidity Vertical Axis Wind Turbine  

E-Print Network (OSTI)

ABSTRACT A high solidity, small scale, 2.5m diameter by 3m high Vertical Axis Wind Turbine (VAWT, performance 1. INTRODUCTION Small scale vertical axis wind turbines (VAWTs) show potential for urban rooftop turbines. Keywords: Vertical Axis Wind Turbine, VAWT, airfoil, pitch, blade, mount, offset, high solidity

Tullis, Stephen

94

SunShot Rooftop Challenge Awardees | Department of Energy  

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

You are here You are here Home » SunShot Rooftop Challenge Awardees SunShot Rooftop Challenge Awardees SUNSHOT ROOFTOP SOLAR CHALLENGE December 1, 2011 Awardee Name Location Population Estimate Award Amount Project Highlights Arizona Governor's Office of Energy Policy City of Flagstaff, City of Phoenix, City of Tucson, Arizona State University's Global Institute of Sustainability, and SmartPower Arizona 2,031,618 $708,992 The Arizona Governor's Office of Energy Policy will identify best practices in finance, permitting, and zoning to move toward voluntary statewide uniformity. The project will drive adoption of an online system in five jurisdictions that allows for over-the-counter/same-day permit review. Broward County Broward County, Florida Power & Light, Coconut Creek, Dania Beach, Davie, Deerfield Beach, Fort Lauderdale, Hallandale Beach, Hillsboro Beach, Lauderdale-by-the Sea, Miramar, North Lauderdale, Oakland Park, Pompano Beach, Sunrise, and Tamarac Florida (Southeastern) 925,618 $646,367 Broward County will remove local ordinances that create barriers to solar installations and will educate community associations about their obligations under Florida law. The project will also create a unified online system for permitting and interconnection to reduce costs and wait time.

95

Modeling and Analysis of Solar Radiation Potentials on Building Rooftops  

Science Conference Proceedings (OSTI)

The active application of photovoltaic for electricity generation could effectively transform neighborhoods and commercial districts into small, localized power plants. This application, however, relies heavily on an accurate estimation of the amount of solar radiation that is available on individual building rooftops. While many solar energy maps exist at higher spatial resolution for concentrated solar energy applications, the data from these maps are not suitable for roof-mounted photovoltaic for several reasons, including lack of data at the appropriate spatial resolution and lack of integration of building-specific characteristics into the models used to generate the maps. To address this problem, we have developed a modeling framework for estimating solar radiation potentials on individual building rooftops that is suitable for utility-scale applications as well as building-specific applications. The framework uses light detection and ranging (LIDAR) data at approximately 1-meter horizontal resolution and 0.3-meter vertical resolution as input for modeling a large number of buildings quickly. One of the strengths of this framework is the ability to parallelize its implementation. Furthermore, the framework accounts for building specific characteristics, such as roof slope, roof aspect, and shadowing effects, that are critical to roof-mounted photovoltaic systems. The resulting data has helped us to identify the so-called solar panel sweet spots on individual building rooftops and obtain accurate statistics of the variation in solar radiation as a function of time of year and geographical location.

Omitaomu, Olufemi A [ORNL; Kodysh, Jeffrey B [ORNL; Bhaduri, Budhendra L [ORNL

2012-01-01T23:59:59.000Z

96

High Performance Networks for High Impact Science  

Science Conference Proceedings (OSTI)

This workshop was the first major activity in developing a strategic plan for high-performance networking in the Office of Science. Held August 13 through 15, 2002, it brought together a selection of end users, especially representing the emerging, high-visibility initiatives, and network visionaries to identify opportunities and begin defining the path forward.

Scott, Mary A.; Bair, Raymond A.

2003-02-13T23:59:59.000Z

97

Demonstration and Testing of ClimaStat for Improved Rooftop Air-Conditioning Efficeincy  

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

Presentation covers the demonstration and testing of ClimaStat for improved rooftop air-conditioning efficiency at the March 15, 2012, Federal Technology Deployment Working Group meeting.

98

Estimating solar access of typical residential rooftops: A case study in San Jose, CA  

DOE Green Energy (OSTI)

Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes rooftop shading in a residential neighborhood of San Jose, CA, one of four regions analyzed in a wider study of the solar access of California homes.High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a 4 km2 residential neighborhood. Hourly shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels.In the year in which surface heights were measured (2005), shadows from all sources ("total shading") reduced the insolation received by S-, SW-, and W-facing residential roofing planes in the study area by 13 - 16percent. Shadows cast by trees and buildings in neighboring parcels reduced insolation by no more than 2percent. After 30 years of simulated maximal tree growth, annual total shading increased to 19 - 22percent, and annual extraparcel shading increased to 3 - 4percent.

Levinson, Ronnen M.; Gupta, Smita; Akbari, Hashem; Pomerantz, Melvin

2008-03-03T23:59:59.000Z

99

NREL: News Feature - RSF Influences New High Performance Buildings  

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

and operated. The building design team is working to meet the ambitious goals of the Living Building Challenge. The Bullitt Center will generate as much energy from rooftop...

100

Computational biology and high performance computing  

E-Print Network (OSTI)

Biology and High Performance Computing Manfred Zorn, TeresaBiology and High Performance Computing Presenters: Manfred99-Portland High performance computing has become one of the

Shoichet, Brian

2011-01-01T23:59:59.000Z

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


101

INL High Performance Building Strategy  

SciTech Connect

High performance buildings, also known as sustainable buildings and green buildings, are resource efficient structures that minimize the impact on the environment by using less energy and water, reduce solid waste and pollutants, and limit the depletion of natural resources while also providing a thermally and visually comfortable working environment that increases productivity for building occupants. As Idaho National Laboratory (INL) becomes the nations premier nuclear energy research laboratory, the physical infrastructure will be established to help accomplish this mission. This infrastructure, particularly the buildings, should incorporate high performance sustainable design features in order to be environmentally responsible and reflect an image of progressiveness and innovation to the public and prospective employees. Additionally, INL is a large consumer of energy that contributes to both carbon emissions and resource inefficiency. In the current climate of rising energy prices and political pressure for carbon reduction, this guide will help new construction project teams to design facilities that are sustainable and reduce energy costs, thereby reducing carbon emissions. With these concerns in mind, the recommendations described in the INL High Performance Building Strategy (previously called the INL Green Building Strategy) are intended to form the INL foundation for high performance building standards. This revised strategy incorporates the latest federal and DOE orders (Executive Order [EO] 13514, Federal Leadership in Environmental, Energy, and Economic Performance [2009], EO 13423, Strengthening Federal Environmental, Energy, and Transportation Management [2007], and DOE Order 430.2B, Departmental Energy, Renewable Energy, and Transportation Management [2008]), the latest guidelines, trends, and observations in high performance building construction, and the latest changes to the Leadership in Energy and Environmental Design (LEED) Green Building Rating System (LEED 2009). The document employs a two-level approach for high performance building at INL. The first level identifies the requirements of the Guiding Principles for Sustainable New Construction and Major Renovations, and the second level recommends which credits should be met when LEED Gold certification is required.

Jennifer D. Morton

2010-02-01T23:59:59.000Z

102

High Performance Photovoltaic Project Overview  

DOE Green Energy (OSTI)

The High-Performance Photovoltaic (HiPerf PV) Project was initiated by the U.S. Department of Energy to substantially increase the viability of photovoltaics (PV) for cost-competitive applications so that PV can contribute significantly to our energy supply and environment in the 21st century. To accomplish this, the National Center for Photovoltaics (NCPV) directs in-house and subcontracted research in high-performance polycrystalline thin-film and multijunction concentrator devices. In this paper, we describe the recent research accomplishments in the in-house directed efforts and the research efforts under way in the subcontracted area.

Symko-Davies, M.; McConnell, R.

2005-01-01T23:59:59.000Z

103

Concentrating Solar Panels: Bringing the Highest Power and Lowest Cost to the Rooftop  

DOE Green Energy (OSTI)

Soliant Energy is a venture-capital-backed startup focused on bringing advanced concentrating solar panels to market. Our fundamental innovation is that we are the first company to develop a racking solar concentrator specifically for commercial rooftop applications, resulting in the lowest LCOE for rooftop electricity generation. Today, the commercial rooftop segment is the largest and fastest-growing market in the solar industry. Our concentrating panels can make a major contribution to the SAI's objectives: reducing the cost of solar electricity and rapidly deploying capacity. Our commercialization focus was re-shaped in 2009, shifting from an emphasis solely on panel efficiency to LCOE. Since the inception of the SAI program, LCOE has become the de facto standard for comparing commercial photovoltaic systems. While estimation and prediction models still differ, the emergence of performance-based incentive (PBI) and feed-in tariff (FIT) systems, as well as power purchase agreement (PPA) financing structures make LCOE the natural metric for photovoltaic systems. Soliant Energy has designed and demonstrated lower-cost, higher-power solar panels that consists of 6 (500X) PV module assemblies utilizing multi-junction cells and an integrated two-axis tracker. In addition, we have designed and demonstrated a prototype 1000X panel assembly with 8. Cost reductions relative to conventional flat panel PV systems were realized by (1) reducing the amount of costly semiconductor material and (2) developing strategies and processes to reduce the manufacturing costs of the entire system. Performance gains against conventional benchmarks were realized with (1) two-axis tracking and (2) higher-efficiency multi-junction PV cells capable of operating at a solar concentration ratio of 1000X (1000 kW/m2). The program objectives are: (1) Develop a tracking/concentrating solar module that has the same geometric form factor as a conventional flat, roof mounted photovoltaic (PV) panel - the Soliant module will produce more power and cost less than conventional panels of the same size; (2) Target LCOE: $0.079/kWh in 2010; (3) Target efficiency - 26% in 2010 (22% for 2008 prototype, 24% for 2009 pilot); and (4) Target performance - equivalent to 650Wp in 2010 (490W for 2008 prototype, 540W for 2009 pilot).

Michael Deck; Rick Russell

2010-01-05T23:59:59.000Z

104

Energy Department Loan Guarantee Would Support Large-Scale Rooftop Solar  

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

Loan Guarantee Would Support Large-Scale Rooftop Loan Guarantee Would Support Large-Scale Rooftop Solar Power for U.S. Military Housing Energy Department Loan Guarantee Would Support Large-Scale Rooftop Solar Power for U.S. Military Housing September 7, 2011 - 2:10pm Addthis Washington D.C. - U.S. Energy Secretary Steven Chu today announced the offer of a conditional commitment for a partial guarantee of a $344 million loan that will support the SolarStrong Project, which is expected to be a record expansion of residential rooftop solar power in the United States. Under the SolarStrong Project, SolarCity Corporation will install, own and operate up to 160,000 rooftop solar installations on as many as 124 U.S. military bases in up to 33 states. SolarCity expects the project to fund approximately 750 construction jobs over five years and 28 full time

105

High Performance Windows Volume Purchase: Events  

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

Events to someone by E-mail Share High Performance Windows Volume Purchase: Events on Facebook Tweet about High Performance Windows Volume Purchase: Events on Twitter Bookmark High...

106

High Performance Windows Volume Purchase: News  

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

News to someone by E-mail Share High Performance Windows Volume Purchase: News on Facebook Tweet about High Performance Windows Volume Purchase: News on Twitter Bookmark High...

107

Carousel Trackers with 1-Sun or 3-Sun Modules for Commercial Building Rooftops  

Science Conference Proceedings (OSTI)

The goal is lower cost solar electricity. Herein, two evolutional steps are described toward achieving this goal. The first step is to follow the sun with a solar tracker. Herein, a carousel tracker is described for mounting on commercial building flat rooftops in order to produce more kWh per kW relative to fixed PV modules. The second evolutionary improvement is to produce lower cost 3-sun CPV modules where two thirds of the expensive single crystal silicon material is replaced by less expensive mirror material. This paper describes the performance and durability of two prototype installations demonstrating these evolutionary innovations. In the first case, the installation and operation of 2 carousels equipped with traditional flat plate modules is described. In the second case, the operation of a carousel equipped with new 3-sun CPV modules is described. Both systems have been operating as expected for several months through the winter of 2007.

Gehl, Anthony C [ORNL; Maxey, L Curt [ORNL; Fraas, Dr. Lewis [JX Crystals, Inc.; Avery, James E. [JX Crystals, Inc.; Minkin, Leonid M [ORNL; Huang, H, [JX Crystals, Inc.

2008-01-01T23:59:59.000Z

108

Rooftop Unitary Air Conditioner with Integral Dedicated Outdoor Air System  

SciTech Connect

Energy use of rooftop and other unitary air-conditioners in commercial applications accounts for about 1 quad (10{sup 15} Btu) of primary energy use annually in the U.S. [Reference 7]. The realization that this cooling equipment accounts for the majority of commercial building cooled floorspace and the majority also of commercial building energy use has spurred development of improved-efficiency equipment as well as development of stricter standards addressing efficiency levels. Another key market driver affecting design of rooftop air-conditioning equipment has been concern regarding comfort and the control of humidity. Trends for increases in outdoor air ventilation rates in certain applications, and the increasing concern about indoor air quality problems associated with humidity levels and moisture in buildings points to a need for improved dehumidification capability in air-conditioning equipment of all types. In many cases addressing this issue exacerbates energy efficiency, and vice versa. The integrated dedicated outdoor air system configuration developed in this project addresses both energy and comfort/humidity issues.

Tiax Llc

2006-02-28T23:59:59.000Z

109

High Performance Computing Meets Experimental Mathematics  

E-Print Network (OSTI)

High Performance Computing Meets Experimental Mathematics David H. Bailey Lawrence Berkeley large, high-performance computer systems. What's more, in these new appli- cations the computer computation, implemented on high performance computer (HPC) systems. We present these results, in part

Bailey, David H.

110

Army High Performance Computing Research Center  

E-Print Network (OSTI)

Army High Performance Computing Research Center Applying advanced computational science research challenges http://me.stanford.edu/research/centers/ahpcrc #12;Army High Performance Computing challenges http://me.stanford.edu/research/centers/ahpcrc #12;Army High Performance Computing Research

Prinz, Friedrich B.

111

Bringing Energy Efficiency to High Performance Computing  

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

Bringing Energy Efficiency to High Performance Computing Oak Ridge National Laboratory's Jaguar Supercomputer William Tschudi September 2013 The ability of high performance...

112

Collaboration to advance high-performance computing  

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

Collaboration to advance high-performance computing Collaboration to advance high-performance computing LANL and EMC will enhance, design, build, test, and deploy new cutting-edge...

113

High performance computing Igal G. Rasin  

E-Print Network (OSTI)

High performance computing Igal G. Rasin Department of Chemical Engineering, Technion Israel with different parallelization techniques and tools used in high performance computing (HPC). The tutorial

Adler, Joan

114

Building Technologies Office: High Performance Windows Volume...  

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

Building Technologies Office: High Performance Windows Volume Purchase to someone by E-mail Share Building Technologies Office: High Performance Windows Volume Purchase on Facebook...

115

High Performance Windows Volume Purchase: For Builders  

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

For Builders to someone by E-mail Share High Performance Windows Volume Purchase: For Builders on Facebook Tweet about High Performance Windows Volume Purchase: For Builders on...

116

High Performance Windows Volume Purchase: For Manufacturers  

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

For Manufacturers to someone by E-mail Share High Performance Windows Volume Purchase: For Manufacturers on Facebook Tweet about High Performance Windows Volume Purchase: For...

117

Advanced Rooftop Control (ARC) Retrofit: Field-Test Results  

Science Conference Proceedings (OSTI)

The multi-year research study was initiated to find solutions to improve packaged equipment operating efficiency in the field. Pacific Northwest National Laboratory (PNNL), with funding from the U.S. Department of Energys (DOEs) Building Technologies Office (BTO) and Bonneville Power Administration (BPA) conducted this research, development and demonstration (RD&D) study. Packaged equipment with constant speed supply fans is designed to provide ventilation at the design rate at all times when the fan is operating as required by building code. Although there are a number of hours during the day when a building may not be fully occupied or the need for ventilation is lower than designed, the ventilation rate cannot be adjusted easily with a constant speed fan. Therefore, modulating the supply fan in conjunction with demand controlled ventilation (DCV) will not only reduce the coil energy but also reduce the fan energy. The objective of this multi-year research, development and demonstration project was to determine the magnitude of energy savings achievable by retrofitting existing packaged rooftop air conditioners with advanced control strategies not ordinarily used for packaged units. First, through detailed simulation analysis, it was shown that significant energy (between 24% and 35%) and cost savings (38%) from fan, cooling and heating energy consumption could be realized when packaged air conditioning units with gas furnaces are retrofitted with advanced control packages (combining multi-speed fan control, integrated economizer controls and DCV). The simulation analysis also showed significant savings for heat pumps (between 20% and 60%). The simulation analysis was followed by an extensive field test of a retrofittable advanced rooftop unit (RTU) controller.

Wang, Weimin; Katipamula, Srinivas; Ngo, Hung; Underhill, Ronald M.; Taasevigen, Danny J.; Lutes, Robert G.

2013-07-31T23:59:59.000Z

118

High Performance Buildings - Alternative/Renewable Energy  

Science Conference Proceedings (OSTI)

... Buildings - Alternative/Renewable Energy. High Performance Buildings - Alternative/Renewable Energy Information at NIST. ...

2010-09-23T23:59:59.000Z

119

Guide for High-Performance Buildings Available  

SciTech Connect

This article is an overview of the new "Sustainable, High-Performance Operations and Maintenance" guidelines.

Bartlett, Rosemarie

2012-10-01T23:59:59.000Z

120

SunShot Initiative: SunShot Prize: Race to the Rooftops  

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

Sponsored by the U.S. Department of Energy (DOE), the SunShot Prize aims to spur low-cost rooftop solar installations across the nation. This competition offers a total of 10...

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


121

Building-Integrated Photovoltaics (BIPV) in the Residential Section: An Analysis of Installed Rooftop Prices (Presentation)  

DOE Green Energy (OSTI)

This powerpoint presentation to be presented at the World Renewable Energy Forum on May 17, 2012, in Denver, CO, discusses building-integrated photovoltaics (BIPV) in the residential section and includes an analysis of installed rooftop prices.

James, T.; Goodrich, A.; Woodhouse, M.; Margolis, R.; Ong, S.

2012-06-01T23:59:59.000Z

122

HIGH PERFORMANCE COMPUTING TODAY Jack Dongarra  

E-Print Network (OSTI)

1 HIGH PERFORMANCE COMPUTING TODAY Jack Dongarra Computer Science Department, University detailed and well-founded analysis of the state of high performance computing. This paper summarizes some of systems available for performing grid based computing. Keywords High performance computing, Parallel

Dongarra, Jack

123

High Performance Windows Volume Purchase: Information Resources  

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

Information Information Resources to someone by E-mail Share High Performance Windows Volume Purchase: Information Resources on Facebook Tweet about High Performance Windows Volume Purchase: Information Resources on Twitter Bookmark High Performance Windows Volume Purchase: Information Resources on Google Bookmark High Performance Windows Volume Purchase: Information Resources on Delicious Rank High Performance Windows Volume Purchase: Information Resources on Digg Find More places to share High Performance Windows Volume Purchase: Information Resources on AddThis.com... Home About For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers For Utilities Information Resources Information Resources Numerous publications will be available to help educate buyers, product

124

Approximating the Seismic Amplification Effects Experienced by Solar Towers Mounted on the Rooftops of Low-Rise Industrial Buildings.  

E-Print Network (OSTI)

?? This thesis investigates the acceleration amplification experienced by solar towers mounted on the rooftops of low-rise industrial buildings during a seismic event. Specifically, this (more)

Balla, Peter Luiz

2013-01-01T23:59:59.000Z

125

IDD High Performance Resilience Program  

Science Conference Proceedings (OSTI)

... construction issues related to: Blast, earthquake, high wind, and flood resistance, and cyber ... 3D propagation ? FLEX finite element software is ...

126

Tutorial: High Performance Computing Igal G. Rasin  

E-Print Network (OSTI)

Tutorial: High Performance Computing Igal G. Rasin Department of Chemical Engineering Israel Computing 27 Nisan 5769 (21.04.2009) 1 / 18 #12;Motivation What is High Performance Computing? What for serial Computing? Igal G. Rasin (Technion) Tutorial: High Performance Computing 27 Nisan 5769 (21

Adler, Joan

127

Providing Access to High Performance Computing Technologies  

E-Print Network (OSTI)

Providing Access to High Performance Computing Technologies Jack Dongarra 1 , Shirley Browne 2 to high performance computing technologies. One effort, the National HPCC Software Exchange, is providing scientists involved with High Performance Computing and Communications (HPCC) [1] 3 . The NHSE facilitates

Dongarra, Jack

128

College of Engineering High Performance Computing Cluster  

E-Print Network (OSTI)

College of Engineering High Performance Computing Cluster Policy and Procedures COE-HPC-01 and registered as requiring high performance computing; the course identification/registrations process the College High Performance Computing system will need register for system access by visiting http

Demirel, Melik C.

129

High Performance I/O  

Science Conference Proceedings (OSTI)

Parallelisation, serial optimisation, compiler tuning, and many more techniques are used to optimise and improve the performance scaling of parallel programs. One area which is frequently not optimised is file I/O. This is because it is often not considered ... Keywords: I/O, HPC, optimisation, parallelisation, Lustre, GPFS, MPI-I/O, HDF5, NetCDF

Adrian Jackson; Fiona Reid; Joachim Hein; Alejandro Soba; Xavier Saez

2011-02-01T23:59:59.000Z

130

High Performance Windows Volume Purchase: Contacts  

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

Contacts to Contacts to someone by E-mail Share High Performance Windows Volume Purchase: Contacts on Facebook Tweet about High Performance Windows Volume Purchase: Contacts on Twitter Bookmark High Performance Windows Volume Purchase: Contacts on Google Bookmark High Performance Windows Volume Purchase: Contacts on Delicious Rank High Performance Windows Volume Purchase: Contacts on Digg Find More places to share High Performance Windows Volume Purchase: Contacts on AddThis.com... Home About For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers For Utilities Information Resources Contacts Web site and High Performance Windows Volume Purchase Program contacts are provided below. Website Contact Send us your comments, report problems, and/or ask questions about

131

Integrating High Performance Computing and Virtual Environments  

E-Print Network (OSTI)

High performance computing has become accepted as a tool that can be used to solve many large scale computational problems. Because of the complexity of the problems associated with high performance computing, visualization of the output of high performance computing applications has always been an important factor in providing a complete problem solving environment for the high performance computing user. As visualization technology advances, it is important to consider what impacts those advances will have on the integration of high performance computing and visualization. Virtual environments are the most recent, and arguably the most powerful, visualization environments in use today. In this paper we analyze the current state of the research of integrating visualization, and in particular virtual environments, with high performance computing. We also present a framework for implementing such an environment and report on the status of its implementation at the Australian National Un...

Brian Corrie; David Sitsky; Paul Mackerras

1997-01-01T23:59:59.000Z

132

HIGH-PERFORMANCE COATING MATERIALS  

DOE Green Energy (OSTI)

Corrosion, erosion, oxidation, and fouling by scale deposits impose critical issues in selecting the metal components used at geothermal power plants operating at brine temperatures up to 300 C. Replacing these components is very costly and time consuming. Currently, components made of titanium alloy and stainless steel commonly are employed for dealing with these problems. However, another major consideration in using these metals is not only that they are considerably more expensive than carbon steel, but also the susceptibility of corrosion-preventing passive oxide layers that develop on their outermost surface sites to reactions with brine-induced scales, such as silicate, silica, and calcite. Such reactions lead to the formation of strong interfacial bonds between the scales and oxide layers, causing the accumulation of multiple layers of scales, and the impairment of the plant component's function and efficacy; furthermore, a substantial amount of time is entailed in removing them. This cleaning operation essential for reusing the components is one of the factors causing the increase in the plant's maintenance costs. If inexpensive carbon steel components could be coated and lined with cost-effective high-hydrothermal temperature stable, anti-corrosion, -oxidation, and -fouling materials, this would improve the power plant's economic factors by engendering a considerable reduction in capital investment, and a decrease in the costs of operations and maintenance through optimized maintenance schedules.

SUGAMA,T.

2007-01-01T23:59:59.000Z

133

AGILA: The Ateneo High Performance Computing System  

E-Print Network (OSTI)

A Beowulf cluster is a low-cost parallel high performance computing system that uses commodity hardware components such as personal computers and standard Ethernet adapters and switches and runs on freely available software such as Linux and LAM-MPI. In this paper the development of the AGILA HPCS, which stands for the Ateneo GigaflopsRange Performance, Linux OS, and Athlon Processors High Performance Computing System, is discussed including its hardware and software configurations and performance evaluation. Keywords High-performance computing, commodity cluster computing, parallel computing, Beowulf-class cluster 1.

Rafael Salda Na; Felix P. Muga Ii; Jerrold J. Garcia; William Emmanuel; S. Yu

2000-01-01T23:59:59.000Z

134

423A HIGH-PERFORMANCE COMPUTING/NUMERICAL The International Journal of High Performance Computing Applications,  

E-Print Network (OSTI)

423A HIGH-PERFORMANCE COMPUTING/NUMERICAL The International Journal of High Performance Computing and barriers in the development of high-performance computing (HPC) algorithms and software. The activity has computing, numerical analy- sis, roadmap, applications and algorithms, software 1 The High-performance

Higham, Nicholas J.

135

High-density Fuel Development for High Performance Research ...  

Science Conference Proceedings (OSTI)

Abstract Scope, High density UMo (7-12wt% Mo) fuel for high performance research ... High Energy X-ray Diffraction Study of Deformation Behavior of Alloy HT9.

136

High Performance Buildings Database | Open Energy Information  

Open Energy Info (EERE)

High Performance Buildings Database High Performance Buildings Database Jump to: navigation, search The High Performance Buildings Database (HPBD), developed by the United States Department of Energy and the National Renewable Energy Laboratory, is "a unique central repository of in-depth information and data on high-performance, green building projects across the United States and abroad."[1] Map of HPBD entries Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":1000,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"-","intro":"","outro":"","searchlabel":"\u2026

137

Related Links on High-Performance Schools  

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

Below are related links to resources for incorporating energy efficiency and renewable energy into building or renovating high-performance schools.

138

MPICH | High-Performance Portable MPI  

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

MPICH High-Performance Portable MPI Skip to content Home About MPICH Overview News and Events Collaborators Downloads Documentation Guides MPICH Wiki Hydra Usage Developer Docs...

139

Mercury | RPC for High-Performance Computing  

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

RPC for High-Performance Computing Skip to content Home About Overview Collaborators Downloads Documentation Getting Started Doxygen Publications Support Mailing Lists Bug Reports...

140

Lawrence Livermore National Laboratory opens High Performance...  

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

06302011 | NR-11-06-08 Lawrence Livermore National Laboratory opens High Performance Computing Innovation Center for collaboration with industry Donald B Johnston, LLNL,...

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


141

Method of making a high performance ultracapacitor  

DOE Patents (OSTI)

A high performance double layer capacitor having an electric double layer formed in the interface between activated carbon and an electrolyte is disclosed. The high performance double layer capacitor includes a pair of aluminum impregnated carbon composite electrodes having an evenly distributed and continuous path of aluminum impregnated within an activated carbon fiber preform saturated with a high performance electrolytic solution. The high performance double layer capacitor is capable of delivering at least 5 Wh/kg of useful energy at power ratings of at least 600 W/kg.

Farahmandi, C. Joseph (Auburn, AL); Dispennette, John M. (Auburn, AL)

2000-07-26T23:59:59.000Z

142

Conversion of Ultra High Performance Carbon Fiber  

Conversion of Ultra High Performance Carbon Fiber Note: The technology described above is an early stage opportunity. Licensing rights to this intellectual property may

143

Related Links on High-Performance Buildings  

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

Below are related links to resources for incorporating energy efficiency and renewable energy into high-performance commercial and residential buildings.

144

Computational biology and high performance computing  

E-Print Network (OSTI)

Paper in Computational Biology The First Step Beyond theM . Glaeser, Mol. & Cell Biology, UCB and Life SciencesLBNL-44460 Computational Biology and High Performance

Shoichet, Brian

2011-01-01T23:59:59.000Z

145

Gas-Filled Panels, High Performance Insulation  

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

Gas-Filled Panels high performance insulation Windows & Daylighting | Building Technologies | Environmental Energy Technologies Division | Berkeley Lab gfp4b.jpg (5624 bytes)...

146

Introduction to High Performance Computing Using GPUs  

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

HPC Using GPUs Introduction to High Performance Computing Using GPUs July 11, 2013 NERSC, NVIDIA, and The Portland Group will present a one-day workshop "Introduction to High...

147

Strategy Guideline: High Performance Residential Lighting  

SciTech Connect

The Strategy Guideline: High Performance Residential Lighting has been developed to provide a tool for the understanding and application of high performance lighting in the home. The high performance lighting strategies featured in this guide are drawn from recent advances in commercial lighting for application to typical spaces found in residential buildings. This guide offers strategies to greatly reduce lighting energy use through the application of high quality fluorescent and light emitting diode (LED) technologies. It is important to note that these strategies not only save energy in the home but also serve to satisfy the homeowner's expectations for high quality lighting.

Holton, J.

2012-02-01T23:59:59.000Z

148

AGILA: The Ateneo High Performance Computing System  

E-Print Network (OSTI)

A Beowulf cluster is a low-cost parallel high performance computing system that uses commodity hardware components such as personal computers and standard Ethernet adapters and switches and runs on freely available software such as Linux and LAM-MPI. In this paper the development of the AGILA HPCS, which stands for the Ateneo GigaflopsRange Performance, Linux OS, and Athlon Processors High Performance Computing System, is discussed including its hardware and software configurations and performance evaluation. Keywords High-performance computing, commodity cluster computing, parallel computing, Beowulf-class cluster 1. INTRODUCTION In the Philippines today, computing power in the range of gigaflops is not generally available for use in research and development. Conventional supercomputers or high performance computing systems are very expensive and are beyond the budgets of most university research groups especially in developing countries such as the Philippines. A lower cost option...

Rafael P. Saldaa; Felix P. Muga; II; Jerrold J. Garcia; William Emmanuel S. Yu; S. Yu

2000-01-01T23:59:59.000Z

149

Building-Integrated Photovoltaics (BIPV) in the Residential Sector: An Analysis of Installed Rooftop System Prices  

DOE Green Energy (OSTI)

For more than 30 years, there have been strong efforts to accelerate the deployment of solar-electric systems by developing photovoltaic (PV) products that are fully integrated with building materials. This report examines the status of building-integrated PV (BIPV), with a focus on the cost drivers of residential rooftop systems, and explores key opportunities and challenges in the marketplace.

James, T.; Goodrich, A.; Woodhouse, M.; Margolis, R.; Ong, S.

2011-11-01T23:59:59.000Z

150

The future market for residential photovoltaic systems: New perspectives on the rooftop resource base  

Science Conference Proceedings (OSTI)

The resource base of one-family houses with roofs suitable for photovoltaic applications can be estimated using a new and efficient sampling strategy combined with a statistical model. Levels of residential housing density are good predictors of rooftop suitability and can be used to make out-of-sample forecasts for a variety of geographic areas. The model is particularly useful for making forecasts for census tracts within large metropolitan areas. A large-scale field survey of rooftops in southeastern Pennsylvania indicates that a much higher proportion of roofs are suitable for rooftop systems than previously thought (in the Northeast). The survey suggests important differences from previous assumptions for such roof characteristics as area, slope, aspect, and the frequency of roof obstructions. Overall, the rooftop resource base; this paradigm rests on the dramatic difference between the central city and the suburbs in the proportion of houses with suitable roofs. The survey also demonstrates the critical role played by landscaping practices within a single urban area.

Miller, K.R.

1992-01-01T23:59:59.000Z

151

ADVANCED HIGH PERFORMANCE SOLID WALL BLANKET CONCEPTS  

Science Conference Proceedings (OSTI)

OAK A271 ADVANCED HIGH PERFORMANCE SOLID WALL BLANKET CONCEPTS. First wall and blanket (FW/blanket) design is a crucial element in the performance and acceptance of a fusion power plant. High temperature structural and breeding materials are needed for high thermal performance. A suitable combination of structural design with the selected materials is necessary for D-T fuel sufficiency. Whenever possible, low afterheat, low chemical reactivity and low activation materials are desired to achieve passive safety and minimize the amount of high-level waste. Of course the selected fusion FW/blanket design will have to match the operational scenarios of high performance plasma. The key characteristics of eight advanced high performance FW/blanket concepts are presented in this paper. Design configurations, performance characteristics, unique advantages and issues are summarized. All reviewed designs can satisfy most of the necessary design goals. For further development, in concert with the advancement in plasma control and scrape off layer physics, additional emphasis will be needed in the areas of first wall coating material selection, design of plasma stabilization coils, consideration of reactor startup and transient events. To validate the projected performance of the advanced FW/blanket concepts the critical element is the need for 14 MeV neutron irradiation facilities for the generation of necessary engineering design data and the prediction of FW/blanket components lifetime and availability.

WONG, CPC; MALANG, S; NISHIO, S; RAFFRAY, R; SAGARA, S

2002-04-01T23:59:59.000Z

152

Homepage: High-Performance Computing Systems, HPC-3: High-Performance...  

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

1188 667-5243 Fax: 667-7665 MS T080 Computing Solutions that work for you High-Performance Computing Systems The High-Performance Computing Systems Group provides production...

153

High Performance and Sustainable Buildings Guidance  

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

HIGH PERFORMANCE and SUSTAINABLE BUILDINGS GUIDANCE Final (12/1/08) PURPOSE The Interagency Sustainability Working Group (ISWG), as a subcommittee of the Steering Committee established by Executive Order (E.O.) 13423, initiated development of the following guidance to assist agencies in meeting the high performance and sustainable buildings goals of E.O. 13423, section 2(f). 1 E.O. 13423, sec. 2(f) states "In implementing the policy set forth in section 1 of this order, the head of each agency shall: ensure that (i) new construction and major renovations of agency buildings comply with the Guiding Principles for Federal Leadership in High Performance and Sustainable Buildings set forth in the Federal Leadership in High Performance and Sustainable Buildings Memorandum of Understanding (2006)

154

High Performance Sustainable Building Design RM  

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

The High Performance Sustainable Building Design (HPSBD) Review Module (RM) is a tool that assists the DOE federal project review teams in evaluating the technical sufficiency for projects that may...

155

High Performance Computing Richard F. BARRETT  

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

Role of Co-design in High Performance Computing Richard F. BARRETT a,1 , Shekhar BORKAR b , Sudip S. DOSANJH c , Simon D. HAMMOND a , Michael A. HEROUX a , X. Sharon HU d , Justin...

156

High Performance Computing Data Center (Fact Sheet)  

SciTech Connect

This two-page fact sheet describes the new High Performance Computing Data Center being built in the ESIF and talks about some of the capabilities and unique features of the center.

Not Available

2012-08-01T23:59:59.000Z

157

Implementation Workshop: High Performance Work Organizations  

E-Print Network (OSTI)

Since the rise of the industrial revolution, there are few challenges that compare in scale and scope with the challenge of implementing lean principles in order to achieve high performance work systems. This report summarize ...

Klein, Jan

158

High performance computing meets experimental mathematics  

Science Conference Proceedings (OSTI)

In this paper we describe some novel applications of high performance computing in a discipline now known as "experimental mathematics." The paper reviews some recent published work, and then presents some new results that have not yet appeared in the ...

David H. Bailey; David Broadhurst; Yozo Hida; Xiaoye S. Li; Brandon Thompson

2002-11-01T23:59:59.000Z

159

Trends in High-Performance Computer Architecture  

E-Print Network (OSTI)

Trends in High-Performance Computer Architecture David J. Lilja Department of Electrical;Historical Trends and Perspective pre-WW II: Mechanical calculating machines WW II - 50's: Technology of Minnesota April 1996 #12;Performance Metrics System throughput - work per unit time rate - used by system

Minnesota, University of

160

Highlighting High Performance: Whitman Hanson Regional High School; Whitman, Massachusetts  

Science Conference Proceedings (OSTI)

This brochure describes the key high-performance building features of the Whitman-Hanson Regional High School. The brochure was paid for by the Massachusetts Technology Collaborative as part of their Green Schools Initiative. High-performance features described are daylighting and energy-efficient lighting, indoor air quality, solar and wind energy, building envelope, heating and cooling systems, water conservation, and acoustics. Energy cost savings are also discussed.

Not Available

2006-06-01T23:59:59.000Z

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


161

for the Support of High Performance Computing  

E-Print Network (OSTI)

Architecture for the Support of High Performance Computing was sponsored by the National Science Foundation to identify critical research topics in computer architecture as they relate to high performance computing. Following a wide-ranging discus-sion of the computational characteristics and requirements of the grand challenge applications, the workshop identified four major computer architecture grand challenges as crucial to advancing the state of the art of high performance computation in the coming decade. These are: (1) idealized parallel computer models; (2) usable peta-ops (1015 ops) performance; (3) computers in an era of HDTV, gigabyte networks, and visualization; and (4) infrastruc-ture for prototyping architectures. This report overviews some of the demands of the grand challenge applications and presents the above four grand challenges for computer architecture. Q MZ AM-demic Press, Inc. A. Origin of the Workshop

Howard Jay Siegel; Seth Abraham; William L. Bain; Kenneth E. Batcher; Thomas L. Casavant; Doug Degroot; Jack B. Dennis; David C. Douglas; Tse-yun Feng; James R. Goodman; Alan Huang; Harry F. Jordan; J. Robertjump; Yalen. Patt; I Alan; Jay Smith; James E. Smith; Lawrence Snyder; I~harold S. Stone; Russ Tuck; Benjamin W. Wah

1992-01-01T23:59:59.000Z

162

High Performance Computing Data Center Metering Protocol | Department...  

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

High Performance Computing Data Center Metering Protocol High Performance Computing Data Center Metering Protocol Guide details the methods for measurement in High Performance...

163

High performance computing: Clusters, constellations, MPPs, and future directions  

E-Print Network (OSTI)

and Jim Gray, High Performance Computing: Crays, Clusters,The Marketplace of High-Performance Computing, ParallelHigh Performance Computing Clusters, Constellations, MPPs,

Dongarra, Jack; Sterling, Thomas; Simon, Horst; Strohmaier, Erich

2003-01-01T23:59:59.000Z

164

High Performance Computing Data Center Metering Protocol  

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

High Performance High Performance Computing Data Center Metering Protocol Prepared for: U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Federal Energy Management Program Prepared by: Thomas Wenning Michael MacDonald Oak Ridge National Laboratory September 2010 ii Introduction Data centers in general are continually using more compact and energy intensive central processing units, but the total number and size of data centers continues to increase to meet progressive computing requirements. In addition, efforts are underway to consolidate smaller data centers across the country. This consolidation is resulting in a growth of high-performance computing facilities (i.e. - supercomputers) which consume large amounts of energy to support the numerically intensive

165

High Performance Sustainable Building Design RM  

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

High Performance Sustainable High Performance Sustainable Building Design Review Module March 2010 CD-0 O High 0 This Re Les OFFICE OF h Perform CD-1 eview Module ssons learned f F ENVIRON Standard R mance Su Revi Critical D CD-2 M has been pilot from the pilot h NMENTAL Review Plan ustainabl iew Module Decision (CD C March 2010 ted at the SRS have been incor L MANAGE n (SRP) le Buildin e D) Applicabili D-3 SWPF and MO rporated in Rev EMENT ng Design ity CD-4 OX FFF projec view Module n Post Ope cts. eration Standard Review Plan, 2 nd Edition, March 2010 i FOREWORD The Standard Review Plan (SRP) 1 provides a consistent, predictable corporate review framework to ensure that issues and risks that could challenge the success of Office of Environmental Management (EM) projects are identified early and addressed proactively. The

166

High Performance Computing in Accelerator Science: Past Successes. Future Challenges  

E-Print Network (OSTI)

High Performance Computing in Accelerator Science: PastAC02- 05CH11231. High Performance Computing in Accelerator

Ryne, R.

2013-01-01T23:59:59.000Z

167

MPICH | High-Performance Portable MPI  

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

MPICH MPICH High-Performance Portable MPI Skip to content Home About MPICH Overview News and Events Collaborators MPI Forum Downloads Releases Release Timeline Pending Tickets Source Changes Documentation Guides Publications MPICH Wiki Hydra Usage Developer Docs Contributor Docs Support FAQs Mailing Lists Bug Reports ABI Compatibility Initiative MPICH is a high performance and widely portable implementation of the Message Passing Interface (MPI) standard. The goals of MPICH are: to provide an MPI implementation that efficiently supports different computation and communication platforms including commodity clusters (desktop systems, shared-memory systems, multicore architectures), high-speed networks and proprietary high-end computing systems (Blue Gene, Cray) to enable cutting-edge research in MPI through an easy-to-extend

168

Performance analysis of memory hierachies in high performance systems  

SciTech Connect

This thesis studies memory bandwidth as a performance predictor of programs. The focus of this work is on computationally intensive programs. These programs are the most likely to access large amounts of data, stressing the memory system. Computationally intensive programs are also likely to use highly optimizing compilers to produce the fastest executables possible. Methods to reduce the amount of data traffic by increasing the average number of references to each item while it resides in the cache are explored. Increasing the average number of references to each cache item reduces the number of memory requests. Chapter 2 describes the DLX architecture. This is the architecture on which all the experiments were performed. Chapter 3 studies memory moves as a performance predictor for a group of application programs. Chapter 4 introduces a model to study the performance of programs in the presence of memory hierarchies. Chapter 5 explores some compiler optimizations that can help increase the references to each item while it resides in the cache.

Yogesh, A.

1993-07-01T23:59:59.000Z

169

Active Desiccant Dehumidification Module Integration with Rooftop Packaged HVAC  

Science Conference Proceedings (OSTI)

This report summarizes a research and development program that produced a stand-alone active desiccant module (ADM) that can be easily integrated with new or existing packaged cooling equipment. The program also produced a fully integrated hybrid system, combining the active desiccant section with a conventional direct expansion air-conditioning unit, that resulted in a compact, low-cost, energy-efficient end product. Based upon the results of this investigation, both systems were determined to be highly viable products for commercialization. Major challenges--including wheel development, compact packaging, regeneration burner development, control optimization, and low-cost design--were all successfully addressed by the final prototypes produced and tested as part of this program. Extensive laboratory testing was completed in the SEMCO laboratory for each of the two ADM system approaches. This testing confirmed the performance of the ADM systems to be attractive compared with that of alternate approaches currently used to precondition outdoor air, where a return air path is not readily available for passive desiccant recovery or where first cost is the primary design criterion. Photographs, schematics, and performance maps are provided for the ADM systems that were developed; and many of the control advantages are discussed. Based upon the positive results of this research and development program, field tests are under way for fully instrumented pilot installations of ADM systems in both a hotel/motel and a restaurant.

Fischer, J

2002-04-17T23:59:59.000Z

170

Strategy Guideline: Partnering for High Performance Homes  

SciTech Connect

High performance houses require a high degree of coordination and have significant interdependencies between various systems in order to perform properly, meet customer expectations, and minimize risks for the builder. Responsibility for the key performance attributes is shared across the project team and can be well coordinated through advanced partnering strategies. For high performance homes, traditional partnerships need to be matured to the next level and be expanded to all members of the project team including trades, suppliers, manufacturers, HERS raters, designers, architects, and building officials as appropriate. In an environment where the builder is the only source of communication between trades and consultants and where relationships are, in general, adversarial as opposed to cooperative, the chances of any one building system to fail are greater. Furthermore, it is much harder for the builder to identify and capitalize on synergistic opportunities. Partnering can help bridge the cross-functional aspects of the systems approach and achieve performance-based criteria. Critical success factors for partnering include support from top management, mutual trust, effective and open communication, effective coordination around common goals, team building, appropriate use of an outside facilitator, a partnering charter progress toward common goals, an effective problem-solving process, long-term commitment, continuous improvement, and a positive experience for all involved.

Prahl, D.

2013-01-01T23:59:59.000Z

171

Co-design for high performance computing.  

Science Conference Proceedings (OSTI)

Co-design has been identified as a key strategy for achieving Exascale computing in this decade. This paper describes the need for co-design in High Performance Computing related research in embedded computing the development of hardware/software co-simulation methods.

Dosanjh, Sudip Singh; Hemmert, Karl Scott; Rodrigues, Arun F.

2010-07-01T23:59:59.000Z

172

Co?design for High Performance Computing  

Science Conference Proceedings (OSTI)

Co?design has been identified as a key strategy for achieving Exascale computing in this decade. This paper describes the need for co?design in High Performance Computing related research in embedded computing the development of hardware/software co?simulation methods.

Arun Rodrigues; Sudip Dosanjh; Scott Hemmert

2010-01-01T23:59:59.000Z

173

Debugging a high performance computing program  

SciTech Connect

Methods, apparatus, and computer program products are disclosed for debugging a high performance computing program by gathering lists of addresses of calling instructions for a plurality of threads of execution of the program, assigning the threads to groups in dependence upon the addresses, and displaying the groups to identify defective threads.

Gooding, Thomas M.

2013-08-20T23:59:59.000Z

174

Project materials [Commercial High Performance Buildings Project  

Science Conference Proceedings (OSTI)

The Consortium for High Performance Buildings (ChiPB) is an outgrowth of DOE'S Commercial Whole Buildings Roadmapping initiatives. It is a team-driven public/private partnership that seeks to enable and demonstrate the benefit of buildings that are designed, built and operated to be energy efficient, environmentally sustainable, superior quality, and cost effective.

None

2001-01-01T23:59:59.000Z

175

Supply Curves for Rooftop Solar PV-Generated Electricity for the United States  

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

A0-44073 A0-44073 November 2008 Supply Curves for Rooftop Solar PV-Generated Electricity for the United States Paul Denholm and Robert Margolis Supply Curves for Rooftop Solar PV-Generated Electricity for the United States Paul Denholm and Robert Margolis Prepared under Task No. PVB7.6301 Technical Report NREL/TP-6A0-44073 November 2008 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

176

Measurement of the Equivalent Thermal Resistance of Rooftop Lawns in a Hot-Climate Wind Tunnel  

E-Print Network (OSTI)

In a very hot summer equivalent to a Guangzhou summer, the reduction of heat coming into rooms is very important with respect to thermal comfort and energy efficiency. The objective of this study is to investigate the evaporation cooling effect on a rooftop lawn. A hot-climate wind tunnel experiment was carried out in order to obtain and analyze the heat and moisture transport in the rooftop lawn. Furthermore, a calculation with the energy conservation equation was carried out using the results of the hot-climate wind tunnel experiment. The calculated equivalent thermal resistance and synthesis exterior surface heat transfer coefficient were in fairly good agreement with that in the design standard for energy efficiency of residential buildings in the hot summer and warm winter zone, while the average velocity in hot-climate wind tunnel equals the summer average outdoor velocity in Guangzhou.

Meng, Q.; Zhang, Y.; Zhang, L.

2006-01-01T23:59:59.000Z

177

High-Performance Mass Spectrometry Facility  

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

HPMSF Overview HPMSF Overview Section 2-4-1 High-Performance Mass Spectrometry Facility The High-Performance Mass Spectrometry Facility (HPMSF) provides state-of-the-art mass spectrometry (MS) and separations instrumentation that has been refined for leading-edge analysis of biological problems with a primary emphasis on proteomics. Challenging research in proteomics, cell signaling, cellular molecular machines, and high-molecular weight systems receive the highest priority for access to the facility. Current research activities in the HPMSF include proteomic analyses of whole cell lysates, analyses of organic macro-molecules and protein complexes, quantification using isotopically labeled growth media, targeted proteomics analyses of subcellular fractions, and nucleic acid analysis of

178

Assessment of Rooftop and Building-Integrated PV Systems for Distributed Generation  

Science Conference Proceedings (OSTI)

Photovoltaics (PV) is the technology of solar cells -- solid-state devices that directly, silently, and cleanly convert solar energy into electricity. Although commercially available for many years, PV technology has only recently become sufficiently affordable and efficient to be a practical alternative or supplement to conventional grid power. PV devices are commonly mounted on a structure's rooftop, but are increasingly integrated into building components such as siding, glass, or roof tiles. This rep...

2003-03-04T23:59:59.000Z

179

High Performance Commercial Fenestration Framing Systems  

SciTech Connect

A major objective of the U.S. Department of Energy is to have a zero energy commercial building by the year 2025. Windows have a major influence on the energy performance of the building envelope as they control over 55% of building energy load, and represent one important area where technologies can be developed to save energy. Aluminum framing systems are used in over 80% of commercial fenestration products (i.e. windows, curtain walls, store fronts, etc.). Aluminum framing systems are often required in commercial buildings because of their inherent good structural properties and long service life, which is required from commercial and architectural frames. At the same time, they are lightweight and durable, requiring very little maintenance, and offer design flexibility. An additional benefit of aluminum framing systems is their relatively low cost and easy manufacturability. Aluminum, being an easily recyclable material, also offers sustainable features. However, from energy efficiency point of view, aluminum frames have lower thermal performance due to the very high thermal conductivity of aluminum. Fenestration systems constructed of aluminum alloys therefore have lower performance in terms of being effective barrier to energy transfer (heat loss or gain). Despite the lower energy performance, aluminum is the choice material for commercial framing systems and dominates the commercial/architectural fenestration market because of the reasons mentioned above. In addition, there is no other cost effective and energy efficient replacement material available to take place of aluminum in the commercial/architectural market. Hence it is imperative to improve the performance of aluminum framing system to improve the energy performance of commercial fenestration system and in turn reduce the energy consumption of commercial building and achieve zero energy building by 2025. The objective of this project was to develop high performance, energy efficient commercial fenestration framing systems, by investigating new technologies that would improve the thermal performance of aluminum frames, while maintaining their structural and life-cycle performance. The project targeted an improvement of over 30% (whole window performance) over conventional commercial framing technology by improving the performance of commercial framing systems.

Mike Manteghi; Sneh Kumar; Joshua Early; Bhaskar Adusumalli

2010-01-31T23:59:59.000Z

180

Evaluation of high-performance computing software  

Science Conference Proceedings (OSTI)

The absence of unbiased and up to date comparative evaluations of high-performance computing software complicates a user`s search for the appropriate software package. The National HPCC Software Exchange (NHSE) is attacking this problem using an approach that includes independent evaluations of software, incorporation of author and user feedback into the evaluations, and Web access to the evaluations. We are applying this approach to the Parallel Tools Library (PTLIB), a new software repository for parallel systems software and tools, and HPC-Netlib, a high performance branch of the Netlib mathematical software repository. Updating the evaluations with feed-back and making it available via the Web helps ensure accuracy and timeliness, and using independent reviewers produces unbiased comparative evaluations difficult to find elsewhere.

Browne, S.; Dongarra, J. [Univ. of Tennessee, Knoxville, TN (United States); Rowan, T. [Oak Ridge National Lab., TN (United States)

1996-12-31T23:59:59.000Z

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


181

Monitoring SLAC High Performance UNIX Computing Systems  

SciTech Connect

Knowledge of the effectiveness and efficiency of computers is important when working with high performance systems. The monitoring of such systems is advantageous in order to foresee possible misfortunes or system failures. Ganglia is a software system designed for high performance computing systems to retrieve specific monitoring information. An alternative storage facility for Ganglia's collected data is needed since its default storage system, the round-robin database (RRD), struggles with data integrity. The creation of a script-driven MySQL database solves this dilemma. This paper describes the process took in the creation and implementation of the MySQL database for use by Ganglia. Comparisons between data storage by both databases are made using gnuplot and Ganglia's real-time graphical user interface.

Lettsome, Annette K.; /Bethune-Cookman Coll. /SLAC

2005-12-15T23:59:59.000Z

182

Engineered Cathodes for High Performance SOFCs  

Science Conference Proceedings (OSTI)

Computational design analysis of a high performance cathode is a cost-effective means of exploring new microstructure and material options for solid oxide fuel cells. A two-layered porous cathode design has been developed that includes a thinner layer with smaller grain diameters at the cathode/electrolyte interface followed by a relatively thicker outer layer with larger grains at the electrode/oxidant interface. Results are presented for the determination of spatially dependent current generation distributions, assessment of the importance of concentration polarization, and sensitivity to measureable microstructural variables. Estimates of the electrode performance in air at 700C indicate that performance approaching 3.1 A/cm2 at 0.078 V is theoretically possible. The limitations of the model are described, along with efforts needed to verify and refine the predictions. The feasibility of fabricating the electrode configuration is also discussed.

Williford, Rick E.; Singh, Prabhakar

2004-03-29T23:59:59.000Z

183

Computational Biology and High Performance Computing 2000  

SciTech Connect

The pace of extraordinary advances in molecular biology has accelerated in the past decade due in large part to discoveries coming from genome projects on human and model organisms. The advances in the genome project so far, happening well ahead of schedule and under budget, have exceeded any dreams by its protagonists, let alone formal expectations. Biologists expect the next phase of the genome project to be even more startling in terms of dramatic breakthroughs in our understanding of human biology, the biology of health and of disease. Only today can biologists begin to envision the necessary experimental, computational and theoretical steps necessary to exploit genome sequence information for its medical impact, its contribution to biotechnology and economic competitiveness, and its ultimate contribution to environmental quality. High performance computing has become one of the critical enabling technologies, which will help to translate this vision of future advances in biology into reality. Biologists are increasingly becoming aware of the potential of high performance computing. The goal of this tutorial is to introduce the exciting new developments in computational biology and genomics to the high performance computing community.

Simon, Horst D.; Zorn, Manfred D.; Spengler, Sylvia J.; Shoichet, Brian K.; Stewart, Craig; Dubchak, Inna L.; Arkin, Adam P.

2000-10-19T23:59:59.000Z

184

DOE High Performance Concentrator PV Project  

DOE Green Energy (OSTI)

Much in demand are next-generation photovoltaic (PV) technologies that can be used economically to make a large-scale impact on world electricity production. The U.S. Department of Energy (DOE) initiated the High-Performance Photovoltaic (HiPerf PV) Project to substantially increase the viability of PV for cost-competitive applications so that PV can contribute significantly to both our energy supply and environment. To accomplish such results, the National Center for Photovoltaics (NCPV) directs in-house and subcontracted research in high-performance polycrystalline thin-film and multijunction concentrator devices with the goal of enabling progress of high-efficiency technologies toward commercial-prototype products. We will describe the details of the subcontractor and in-house progress in exploring and accelerating pathways of III-V multijunction concentrator solar cells and systems toward their long-term goals. By 2020, we anticipate that this project will have demonstrated 33% system efficiency and a system price of $1.00/Wp for concentrator PV systems using III-V multijunction solar cells with efficiencies over 41%.

McConnell, R.; Symko-Davies, M.

2005-08-01T23:59:59.000Z

185

Forced Air Systems in High Performance Homes  

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

FORCED AIR SYSTEMS IN FORCED AIR SYSTEMS IN HIGH PERFORMANCE HOMES Iain Walker (LBNL) Building America Meeting 2013 What are the issues? 1. Sizing  When is too small too small? 2. Distribution  Can we get good mixing at low flow? 3. Performance  Humidity Control  Part load efficiency  Blowers & thermal losses Sizing  Part-load - not an issue with modern equipment  Careful about predicted loads - a small error becomes a big problem for tightly sized systems  Too Low Capacity = not robust  Extreme vs. design days  Change in occupancy  Party mode  Recovery from setback Sizing  Conventional wisdom - a good envelope = easy to predict and not sensitive to indoor conditions  But..... Heating and cooling become discretionary - large variability depending on occupants

186

Lessons learned when building a greenfield high performance computing ecosystem  

Science Conference Proceedings (OSTI)

Faced with a fragmented research computing environment and growing needs for high performance computing resources, Michigan State University established the High Performance Computing Center in 2005 to serve as a central high performance computing resource ...

Andrew R. Keen; William F. Punch; Greg Mason

2012-12-01T23:59:59.000Z

187

Middleware in Modern High Performance Computing System Architectures  

E-Print Network (OSTI)

Middleware in Modern High Performance Computing System Architectures Christian Engelmann, Hong Ong trend in modern high performance computing (HPC) system architectures employs "lean" compute nodes) continue to reside on compute nodes. Key words: High Performance Computing, Middleware, Lean Compute Node

Engelmann, Christian

188

Managing Stakeholder Requirements in High Performance Computing Procurement  

E-Print Network (OSTI)

Managing Stakeholder Requirements in High Performance Computing Procurement John Rooksby1 , Mark Department of Management, Lancaster University High Performance Computing (HPC) facilities are provided strategy can rigorously meet the demands of the potential users. 1 Introduction High Performance Computing

Sommerville, Ian

189

SYSTEMS ENGINEERING FOR HIGH PERFORMANCE COMPUTING SOFTWARE: THE HDDA DAGH  

E-Print Network (OSTI)

SYSTEMS ENGINEERING FOR HIGH PERFORMANCE COMPUTING SOFTWARE: THE HDDA DAGH INFRASTRUCTURE systems implementing high performance computing applications. The example which drives the creation in the context of high performance computing software. Applicationof these principleswill be seen

Parashar, Manish

190

Purchase of High Performance Computing (HPC) Central Compute Resources  

E-Print Network (OSTI)

Purchase of High Performance Computing (HPC) Central Compute Resources by Northwestern Researchers summarizes High Performance Computing (HPC) compute resources that faculty engaged in research may purchase of code on the Quest high performance computing system. The installation cycles for new

Shull, Kenneth R.

191

Building America Roadmap to High Performance Homes  

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

Program Name or Ancillary Text Program Name or Ancillary Text eere.energy.gov Building America Technical Update Meeting - April 29, 2013 Building America Roadmap to High Performance Homes Eric Werling Building America Coordinator Denver, CO April 29, 2013 Building Technology Office U.S. Department of Energy EERE's National Mission Mission: To create American leadership in the global transition to a clean energy economy 1) High-Impact Research, Development, and Demonstration to Make Clean Energy as Affordable and Convenient as Traditional Forms of Energy 2) Breaking Down Barriers to Market Entry 2 | Building Technologies Office eere.energy.gov Why It Matters to America * Winning the most important global economic development race of the 21 st century * Creating jobs through American innovation

192

High-performance laboratories and cleanrooms  

SciTech Connect

The California Energy Commission sponsored this roadmap to guide energy efficiency research and deployment for high performance cleanrooms and laboratories. Industries and institutions utilizing these building types (termed high-tech buildings) have played an important part in the vitality of the California economy. This roadmap's key objective to present a multi-year agenda to prioritize and coordinate research efforts. It also addresses delivery mechanisms to get the research products into the market. Because of the importance to the California economy, it is appropriate and important for California to take the lead in assessing the energy efficiency research needs, opportunities, and priorities for this market. In addition to the importance to California's economy, energy demand for this market segment is large and growing (estimated at 9400 GWH for 1996, Mills et al. 1996). With their 24hr. continuous operation, high tech facilities are a major contributor to the peak electrical demand. Laboratories and cleanrooms constitute the high tech building market, and although each building type has its unique features, they are similar in that they are extremely energy intensive, involve special environmental considerations, have very high ventilation requirements, and are subject to regulations--primarily safety driven--that tend to have adverse energy implications. High-tech buildings have largely been overlooked in past energy efficiency research. Many industries and institutions utilize laboratories and cleanrooms. As illustrated, there are many industries operating cleanrooms in California. These include semiconductor manufacturing, semiconductor suppliers, pharmaceutical, biotechnology, disk drive manufacturing, flat panel displays, automotive, aerospace, food, hospitals, medical devices, universities, and federal research facilities.

Tschudi, William; Sartor, Dale; Mills, Evan; Xu, Tengfang

2002-07-01T23:59:59.000Z

193

Energy Design Guidelines for High Performance Schools: Hot and...  

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

Energy Design Guidelines for High Performance Schools: Hot and Humid Climates Energy Design Guidelines for High Performance Schools: Hot and Humid Climates School districts around...

194

Energy Efficiency Opportunities in Federal High Performance Computing...  

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

Energy Efficiency Opportunities in Federal High Performance Computing Data Centers Energy Efficiency Opportunities in Federal High Performance Computing Data Centers Case study...

195

DOE Science Showcase - High-Performance Computing | OSTI, US...  

Office of Scientific and Technical Information (OSTI)

Science Showcase - High-Performance Computing Supercomputers or massively parallel high-performance computers (HPCs) are machines that employ very large numbers of processors in...

196

High Performance computing Data Center (Fact Sheet), NREL (National...  

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

via efficient evaporative cooling towers serving the HPC data center. High Performance Computing Data Center The new high performance computing (HPC) data center in NREL's...

197

Federal Leadership in High Performance and Sustainable Buildings...  

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

Federal Leadership in High Performance and Sustainable Buildings Memorandum of Understanding Federal Leadership in High Performance and Sustainable Buildings Memorandum of...

198

Federal Leadership in High Performance and Sustainable Buildings...  

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

Leadership in High Performance and Sustainable Buildings Memorandum of Understanding Federal Leadership in High Performance and Sustainable Buildings Memorandum of Understanding...

199

Memorandum of American High-Performance Buildings Coalition DOE...  

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

Memorandum of American High-Performance Buildings Coalition DOE Meeting August 19, 2013 Memorandum of American High-Performance Buildings Coalition DOE Meeting August 19, 2013 This...

200

Integrating advanced facades into high performance buildings  

SciTech Connect

Glass is a remarkable material but its functionality is significantly enhanced when it is processed or altered to provide added intrinsic capabilities. The overall performance of glass elements in a building can be further enhanced when they are designed to be part of a complete facade system. Finally the facade system delivers the greatest performance to the building owner and occupants when it becomes an essential element of a fully integrated building design. This presentation examines the growing interest in incorporating advanced glazing elements into more comprehensive facade and building systems in a manner that increases comfort, productivity and amenity for occupants, reduces operating costs for building owners, and contributes to improving the health of the planet by reducing overall energy use and negative environmental impacts. We explore the role of glazing systems in dynamic and responsive facades that provide the following functionality: Enhanced sun protection and cooling load control while improving thermal comfort and providing most of the light needed with daylighting; Enhanced air quality and reduced cooling loads using natural ventilation schemes employing the facade as an active air control element; Reduced operating costs by minimizing lighting, cooling and heating energy use by optimizing the daylighting-thermal tradeoffs; Net positive contributions to the energy balance of the building using integrated photovoltaic systems; Improved indoor environments leading to enhanced occupant health, comfort and performance. In addressing these issues facade system solutions must, of course, respect the constraints of latitude, location, solar orientation, acoustics, earthquake and fire safety, etc. Since climate and occupant needs are dynamic variables, in a high performance building the facade solution have the capacity to respond and adapt to these variable exterior conditions and to changing occupant needs. This responsive performance capability can also offer solutions to building owners where reliable access to the electric grid is a challenge, in both less-developed countries and in industrialized countries where electric generating capacity has not kept pace with growth. We find that when properly designed and executed as part of a complete building solution, advanced facades can provide solutions to many of these challenges in building design today.

Selkowitz, Stephen E.

2001-05-01T23:59:59.000Z

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


201

Demonstration and Testing of ClimaStat for Improved Rooftop Air-Conditioning Efficeincy  

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

Demonstration and Testing of ClimaStat® for Improved Rooftop Air-Conditioning Efficiency Presented at IA Technology Deployment Working Group Meeting March 15, 2012 By Dan Howett, PE Oak Ridge National Laboratory Demonstration/Testing of ClimaStat ® for Improved Efficiency of RTU Air Conditioners * Technology from Advantek Consulting - Patented by Dr. Michael West in 2003. (US Patent #6427454) - Originally demonstrated under DOE's Inventions & Innovations program. * Current demonstration sponsored by DOD's ESTCP program * Uses off-the-shelf components to either... - Modify existing packaged air conditioners, or - Incorporate changes into new RTU equipment before installation * Initial tests show 15% improvement in HVAC efficiency.

202

Demonstration and Testing of ClimaStat for Improved Rooftop Air-Conditioning Efficeincy  

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

Demonstration and Testing of ClimaStat® for Improved Rooftop Air-Conditioning Efficiency Presented at IA Technology Deployment Working Group Meeting March 15, 2012 By Dan Howett, PE Oak Ridge National Laboratory Demonstration/Testing of ClimaStat ® for Improved Efficiency of RTU Air Conditioners * Technology from Advantek Consulting - Patented by Dr. Michael West in 2003. (US Patent #6427454) - Originally demonstrated under DOE's Inventions & Innovations program. * Current demonstration sponsored by DOD's ESTCP program * Uses off-the-shelf components to either... - Modify existing packaged air conditioners, or - Incorporate changes into new RTU equipment before installation * Initial tests show 15% improvement in HVAC efficiency.

203

USING MULTITAIL NETWORKS IN HIGH PERFORMANCE CLUSTERS  

Science Conference Proceedings (OSTI)

Using multiple independent networks (also known as rails) is an emerging technique to overcome bandwidth limitations and enhance fault-tolerance of current high-performance clusters. We present and analyze various venues for exploiting multiple rails. Different rail access policies are presented and compared, including static and dynamic allocation schemes. An analytical lower bound on the number of networks required for static rail allocation is shown. We also present an extensive experimental comparison of the behavior of various allocation schemes in terms of bandwidth and latency. Striping messages over multiple rails can substantially reduce network latency, depending on average message size, network load and allocation scheme. The methods compared include a static rail allocation, a round-robin rail allocation, a dynamic allocation based on local knowledge, and a rail allocation that reserves both end-points of a message before sending it. The latter is shown to perform better than other methods at higher loads: up to 49% better than local-knowledge allocation and 37% better than the round-robin allocation. This allocation scheme also shows lower latency and it saturates on higher loads (for messages large enough). Most importantly, this proposed allocation scheme scales well with the number of rails and message sizes.

S. COLL; E. FRACHTEMBERG; F. PETRINI; A. HOISIE; L. GURVITS

2001-03-01T23:59:59.000Z

204

High performance internal reforming unit for high temperature fuel cells  

DOE Patents (OSTI)

A fuel reformer having an enclosure with first and second opposing surfaces, a sidewall connecting the first and second opposing surfaces and an inlet port and an outlet port in the sidewall. A plate assembly supporting a catalyst and baffles are also disposed in the enclosure. A main baffle extends into the enclosure from a point of the sidewall between the inlet and outlet ports. The main baffle cooperates with the enclosure and the plate assembly to establish a path for the flow of fuel gas through the reformer from the inlet port to the outlet port. At least a first directing baffle extends in the enclosure from one of the sidewall and the main baffle and cooperates with the plate assembly and the enclosure to alter the gas flow path. Desired graded catalyst loading pattern has been defined for optimized thermal management for the internal reforming high temperature fuel cells so as to achieve high cell performance.

Ma, Zhiwen (Sandy Hook, CT); Venkataraman, Ramakrishnan (New Milford, CT); Novacco, Lawrence J. (Brookfield, CT)

2008-10-07T23:59:59.000Z

205

What is High Performance UnionCollegeAlbanyWorkshopon  

E-Print Network (OSTI)

What is High Performance Computing? UnionCollegeAlbanyWorkshopon "High Performance Computing IN 47404 gcf@indiana.edu http://www.infomall.org #12;What is High Performance Computing? The meaning of this was clear 20 years ago when we were planning/starting the HPCC (High Performance Computing and Communication

Barr, Valerie

206

Energy Efficiency Opportunities in Federal High Performance Computing Data Centers  

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

Case study describes an outline of energy efficiency opportunities in federal high performance computing data centers.

207

CENTER FOR HIGH PERFORMANCE COMPUTING Overview of CHPC  

E-Print Network (OSTI)

CENTER FOR HIGH PERFORMANCE COMPUTING Overview of CHPC Julia Harrison, Associate Director Center for High Performance Computing julia.harrison@utah.edu Spring 2009 #12;CENTER FOR HIGH PERFORMANCE://www.chpc.utah.edu/docs/services.html 2/26/09 http://www.chpc.utah.edu Slide 3 #12;CENTER FOR HIGH PERFORMANCE COMPUTING Arches 2

Alvarado, Alejandro Sánchez

208

C++ programming techniques for High Performance Computing on systems with  

E-Print Network (OSTI)

C++ programming techniques for High Performance Computing on systems with non-uniform memory access (including NUMA) without sacrificing performance. ccNUMA In High Performance Computing (HPC), shared- memory

Sanderson, Yasmine

209

High-performance commercial building systems  

SciTech Connect

This report summarizes key technical accomplishments resulting from the three year PIER-funded R&D program, ''High Performance Commercial Building Systems'' (HPCBS). The program targets the commercial building sector in California, an end-use sector that accounts for about one-third of all California electricity consumption and an even larger fraction of peak demand, at a cost of over $10B/year. Commercial buildings also have a major impact on occupant health, comfort and productivity. Building design and operations practices that influence energy use are deeply engrained in a fragmented, risk-averse industry that is slow to change. Although California's aggressive standards efforts have resulted in new buildings designed to use less energy than those constructed 20 years ago, the actual savings realized are still well below technical and economic potentials. The broad goal of this program is to develop and deploy a set of energy-saving technologies, strategies, and techniques, and improve processes for designing, commissioning, and operating commercial buildings, while improving health, comfort, and performance of occupants, all in a manner consistent with sound economic investment practices. Results are to be broadly applicable to the commercial sector for different building sizes and types, e.g. offices and schools, for different classes of ownership, both public and private, and for owner-occupied as well as speculative buildings. The program aims to facilitate significant electricity use savings in the California commercial sector by 2015, while assuring that these savings are affordable and promote high quality indoor environments. The five linked technical program elements contain 14 projects with 41 distinct R&D tasks. Collectively they form a comprehensive Research, Development, and Demonstration (RD&D) program with the potential to capture large savings in the commercial building sector, providing significant economic benefits to building owners and health and performance benefits to occupants. At the same time this program can strengthen the growing energy efficiency industry in California by providing new jobs and growth opportunities for companies providing the technology, systems, software, design, and building services to the commercial sector. The broad objectives across all five program elements were: (1) To develop and deploy an integrated set of tools and techniques to support the design and operation of energy-efficient commercial buildings; (2) To develop open software specifications for a building data model that will support the interoperability of these tools throughout the building life-cycle; (3) To create new technology options (hardware and controls) for substantially reducing controllable lighting, envelope, and cooling loads in buildings; (4) To create and implement a new generation of diagnostic techniques so that commissioning and efficient building operations can be accomplished reliably and cost effectively and provide sustained energy savings; (5) To enhance the health, comfort and performance of building occupants. (6) To provide the information technology infrastructure for owners to minimize their energy costs and manage their energy information in a manner that creates added value for their buildings as the commercial sector transitions to an era of deregulated utility markets, distributed generation, and changing business practices. Our ultimate goal is for our R&D effort to have measurable market impact. This requires that the research tasks be carried out with a variety of connections to key market actors or trends so that they are recognized as relevant and useful and can be adopted by expected users. While some of this activity is directly integrated into our research tasks, the handoff from ''market-connected R&D'' to ''field deployment'' is still an art as well as a science and in many areas requires resources and a timeframe well beyond the scope of this PIER research program. The TAGs, PAC

Selkowitz, Stephen

2003-10-01T23:59:59.000Z

210

High-performance commercial building systems  

SciTech Connect

This report summarizes key technical accomplishments resulting from the three year PIER-funded R&D program, ''High Performance Commercial Building Systems'' (HPCBS). The program targets the commercial building sector in California, an end-use sector that accounts for about one-third of all California electricity consumption and an even larger fraction of peak demand, at a cost of over $10B/year. Commercial buildings also have a major impact on occupant health, comfort and productivity. Building design and operations practices that influence energy use are deeply engrained in a fragmented, risk-averse industry that is slow to change. Although California's aggressive standards efforts have resulted in new buildings designed to use less energy than those constructed 20 years ago, the actual savings realized are still well below technical and economic potentials. The broad goal of this program is to develop and deploy a set of energy-saving technologies, strategies, and techniques, and improve processes for designing, commissioning, and operating commercial buildings, while improving health, comfort, and performance of occupants, all in a manner consistent with sound economic investment practices. Results are to be broadly applicable to the commercial sector for different building sizes and types, e.g. offices and schools, for different classes of ownership, both public and private, and for owner-occupied as well as speculative buildings. The program aims to facilitate significant electricity use savings in the California commercial sector by 2015, while assuring that these savings are affordable and promote high quality indoor environments. The five linked technical program elements contain 14 projects with 41 distinct R&D tasks. Collectively they form a comprehensive Research, Development, and Demonstration (RD&D) program with the potential to capture large savings in the commercial building sector, providing significant economic benefits to building owners and health and performance benefits to occupants. At the same time this program can strengthen the growing energy efficiency industry in California by providing new jobs and growth opportunities for companies providing the technology, systems, software, design, and building services to the commercial sector. The broad objectives across all five program elements were: (1) To develop and deploy an integrated set of tools and techniques to support the design and operation of energy-efficient commercial buildings; (2) To develop open software specifications for a building data model that will support the interoperability of these tools throughout the building life-cycle; (3) To create new technology options (hardware and controls) for substantially reducing controllable lighting, envelope, and cooling loads in buildings; (4) To create and implement a new generation of diagnostic techniques so that commissioning and efficient building operations can be accomplished reliably and cost effectively and provide sustained energy savings; (5) To enhance the health, comfort and performance of building occupants. (6) To provide the information technology infrastructure for owners to minimize their energy costs and manage their energy information in a manner that creates added value for their buildings as the commercial sector transitions to an era of deregulated utility markets, distributed generation, and changing business practices. Our ultimate goal is for our R&D effort to have measurable market impact. This requires that the research tasks be carried out with a variety of connections to key market actors or trends so that they are recognized as relevant and useful and can be adopted by expected users. While some of this activity is directly integrated into our research tasks, the handoff from ''market-connected R&D'' to ''field deployment'' is still an art as well as a science and in many areas requires resources and a timeframe well beyond the scope of this PIER research program. The TAGs, PAC and other industry partners have assisted directly in this effort

Selkowitz, Stephen

2003-10-01T23:59:59.000Z

211

A lightweight, high performance communication protocol for grid computing  

Science Conference Proceedings (OSTI)

This paper describes a lightweight, high-performance communication protocol for the high-bandwidth, high-delay networks typical of computational Grids. One unique feature of this protocol is that it incorporates an extremely accurate classification mechanism ... Keywords: Bayesian analysis, Classification mechanisms, Grid computing, High-performance communication protocols, High-performance networking

Phillip M. Dickens

2010-03-01T23:59:59.000Z

212

Methodology for Estimating Solar Potential on Multiple Building Rooftops for Photovoltaic Systems  

SciTech Connect

In this paper, a methodology for estimating solar potential on multiple building rooftops is presented. The objective of this methodology is to estimate the daily or monthly solar radiation potential on individual buildings in a city/region using Light Detection and Ranging (LiDAR) data and a geographic information system (GIS) approach. Conceptually, the methodology is based on the upward-looking hemispherical viewshed algorithm, but applied using an area-based modeling approach. The methodology considers input parameters, such as surface orientation, shadowing effect, elevation, and atmospheric conditions, that influence solar intensity on the earth s surface. The methodology has been implemented for some 212,000 buildings in Knox County, Tennessee, USA. Based on the results obtained, the methodology seems to be adequate for estimating solar radiation on multiple building rooftops. The use of LiDAR data improves the radiation potential estimates in terms of the model predictive error and the spatial pattern of the model outputs. This methodology could help cities/regions interested in sustainable projects to quickly identify buildings with higher potentials for roof-mounted photovoltaic systems.

Kodysh, Jeffrey B [ORNL; Omitaomu, Olufemi A [ORNL; Bhaduri, Budhendra L [ORNL; Neish, Bradley S [ORNL

2013-01-01T23:59:59.000Z

213

An integrated high performance Fastbus slave interface  

Science Conference Proceedings (OSTI)

A high performance CMOS Fastbus slave interface ASIC (Application Specific Integrated Circuit) supporting all addressing and data transfer modes defined in the IEEE 960 - 1986 standard is presented. The FAstbus Slave Integrated Circuit (FASIC) is an interface between the asynchronous Fastbus and a clock synchronous processor/memory bus. It can work stand-alone or together with a 32 bit microprocessor. The FASIC is a programmable device enabling its direct use in many different applications. A set of programmable address mapping windows can map Fastbus addresses to convenient memory addresses and at the same time act as address decoding logic. Data rates of 100 MBytes/sec to Fastbus can be obtained using an internal FIFO in the FASIC to buffer data between the two buses during block transfers. Message passing from Fastbus to a microprocessor on the slave module is supported. A compact (70 mm x 170 mm) Fastbus slave piggy back sub-card interface including level conversion between ECL and TTL signal levels has been implemented using surface mount components and the 208 pin FASIC chip.

Christiansen, J.; Ljuslin, C. (CERN/ECP, Geneva (Switzerland))

1993-08-01T23:59:59.000Z

214

Green and High Performance Factory Crafted Housing  

E-Print Network (OSTI)

In the U.S., factory-built housing greater than 400 square feet is built either to the U.S. Department of Housing and Urban Development (HUD) code for mobile homes or site-built codes for modular housing. During the last few years, as the production of HUD code housing has dwindled, many leading edge factory builders have started building modular homes to compete with site-built housing and stay in business. As part of the Building America Industrialized Housing Partnership (BAIHP) we have assisted in the design and construction of several green and high performance modular homes that Palm Harbor Homes, Florida Division (PHH) has built for the International Builders Show (IBS) in 2006, 2007, and 2008. This paper will summarize the design features and the green and energy-efficient certification processes conducted for the 2008 show homes, one of which received the very first E-Scale produced by BAIHP for the U.S. Department of Energy (DOE) Builders Challenge program.

Thomas-Rees, S.; Chasar, D.; Chandra, S.; Stroer, D.

2008-12-01T23:59:59.000Z

215

High-performance commercial building systems  

E-Print Network (OSTI)

HVAC engineers and operators to optimize energy performance of buildings; and Develop simulation-based test and optimization

Selkowitz, Stephen

2003-01-01T23:59:59.000Z

216

Fermilab | Science at Fermilab | Computing | High-performance...  

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

Lattice QCD Farm at the Grid Computing Center at Fermilab. Computing High-performance Computing A workstation computer can perform billions of multiplication and addition...

217

High Performance Solar Control Office Windows  

E-Print Network (OSTI)

boratory University of California/Berkeley r t::;t:; r I thefor LAWRENCE BERKELEY LABORATORY UNIVERSITY OF CALIFORNIA Berkeley, California 94701 This work was performed for the

King, William J.

2011-01-01T23:59:59.000Z

218

Federal Energy Management Program: High-Performance Sustainable Building  

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

High-Performance Sustainable Building Design for New Construction and Major Renovations High-Performance Sustainable Building Design for New Construction and Major Renovations New construction and major renovations to existing buildings offer Federal agencies opportunities to create sustainable high-performance buildings. High-performance buildings can incorporate energy-efficient designs, sustainable siting and materials, and renewable energy technologies along with other innovative strategies. Also see Guiding Principles for Federal Leadership in High-Performance and Sustainable Buildings. Performance-Based Design Build Typically, architects, engineers, and project managers consider the potential to build a high-performance building to be limited by the initial cost. A different approach-performance-based design build-makes high performance the priority, from start to finish. Contracts are developed that focus on both limiting construction costs and meeting performance targets. The approach is not a source of funding, but rather a strategy to make the most out of limited, appropriated, funds.

219

High Performance Diesel Fueled Cabin Heater  

DOE Green Energy (OSTI)

Recent DOE-OHVT studies show that diesel emissions and fuel consumption can be greatly reduced at truck stops by switching from engine idle to auxiliary-fired heaters. Brookhaven National Laboratory (BNL) has studied high performance diesel burner designs that address the shortcomings of current low fire-rate burners. Initial test results suggest a real opportunity for the development of a truly advanced truck heating system. The BNL approach is to use a low pressure, air-atomized burner derived form burner designs used commonly in gas turbine combustors. This paper reviews the design and test results of the BNL diesel fueled cabin heater. The burner design is covered by U.S. Patent 6,102,687 and was issued to U.S. DOE on August 15, 2000.The development of several novel oil burner applications based on low-pressure air atomization is described. The atomizer used is a pre-filming, air blast nozzle of the type commonly used in gas turbine combustion. The air pressure used can b e as low as 1300 Pa and such pressure can be easily achieved with a fan. Advantages over conventional, pressure-atomized nozzles include ability to operate at low input rates without very small passages and much lower fuel pressure requirements. At very low firing rates the small passage sizes in pressure swirl nozzles lead to poor reliability and this factor has practically constrained these burners to firing rates over 14 kW. Air atomization can be used very effectively at low firing rates to overcome this concern. However, many air atomizer designs require pressures that can be achieved only with a compressor, greatly complicating the burner package and increasing cost. The work described in this paper has been aimed at the practical adaptation of low-pressure air atomization to low input oil burners. The objective of this work is the development of burners that can achieve the benefits of air atomization with air pressures practically achievable with a simple burner fan.

Butcher, Tom

2001-08-05T23:59:59.000Z

220

High Performance Adaptive Distributed Scheduling Algorithm  

Science Conference Proceedings (OSTI)

Exascale computing requires complex runtime systems that need to consider affinity, load balancing and low time and message complexity for scheduling massive scale parallel computations. Simultaneous consideration of these objectives makes online distributed ... Keywords: Distributed Scheduling, Adaptive Scheduling, Performance Analysis

Ankur Narang, Abhinav Srivastava, R. K. Shyamasundar

2013-05-01T23:59:59.000Z

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


221

High Performance Electrolyzers for Hybrid Thermochemical Cycles  

DOE Green Energy (OSTI)

Extensive electrolyzer testing was performed at the University of South Carolina (USC). Emphasis was given to understanding water transport under various operating (i.e., temperature, membrane pressure differential and current density) and design (i.e., membrane thickness) conditions when it became apparent that water transport plays a deciding role in cell voltage. A mathematical model was developed to further understand the mechanisms of water and SO2 transport, and to predict the effect of operating and design parameters on electrolyzer performance.

Dr. John W. Weidner

2009-05-10T23:59:59.000Z

222

SunShot Initiative: High-Performance Nanostructured Coating  

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

High-Performance Nanostructured High-Performance Nanostructured Coating to someone by E-mail Share SunShot Initiative: High-Performance Nanostructured Coating on Facebook Tweet about SunShot Initiative: High-Performance Nanostructured Coating on Twitter Bookmark SunShot Initiative: High-Performance Nanostructured Coating on Google Bookmark SunShot Initiative: High-Performance Nanostructured Coating on Delicious Rank SunShot Initiative: High-Performance Nanostructured Coating on Digg Find More places to share SunShot Initiative: High-Performance Nanostructured Coating on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload CSP SunShot Multidisciplinary University Research Initiative CSP Heat Integration for Baseload Renewable Energy Deployment

223

Geocomputation's future at the extremes: high performance computing and nanoclients  

E-Print Network (OSTI)

Geocomputation's future at the extremes: high performance computing and nanoclients K.C. Clarke; High performance computing; Tractability; Geocom- putation E-mail address: kclarke@geog.ucsb.edu (K

Clarke, Keith

224

High Performance Windows Volume Purchase: NewsDetail  

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

NewsDetail to someone by E-mail Share High Performance Windows Volume Purchase: NewsDetail on Facebook Tweet about High Performance Windows Volume Purchase: NewsDetail on Twitter...

225

Empirical Performance Analysis of High Performance Computing Benchmarks Across Variations in Cloud Computing.  

E-Print Network (OSTI)

??High Performance Computing (HPC) applications are data-intensive scientific software requiring significant CPU and data storage capabilities. Researchers have examined the performance of Amazon Elastic Compute (more)

Mani, Sindhu

2012-01-01T23:59:59.000Z

226

High Rate Performing lithium-ion Batteries - Programmaster.org  

Science Conference Proceedings (OSTI)

Symposium, Nanostructured Materials for Rechargeable Batteries and for Supercapacitors, II. Presentation Title, High Rate Performing lithium-ion Batteries.

227

High-Performance Flexible Organic Photovoltaic Cells with ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2013 TMS Annual Meeting & Exhibition. Symposium , 2013 and Beyond: Flexible Electronics. Presentation Title, High-Performance...

228

Rebuilding It Better: Greensburg, Kansas, High Performance Buildings...  

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

Greensburg, Kansas, High Performance Buildings Meeting Energy Savings Goals (Brochure) (Revised), Energy Efficiency & Renewable Energy (EERE) Rebuilding It Better: Greensburg,...

229

Modelling and Grain Boundary Engineering for High Performance ...  

Science Conference Proceedings (OSTI)

... useful information for future development of polysilicon sollar cell with high performance photovoltaic and electric properties by grain boundary engineering,

230

High-Performance SOFC Anodes Prepared by Infiltration of ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2011. Symposium, Energy Conversion/Fuel Cells. Presentation Title, High-Performance SOFC...

231

Computational biology and high performance computing  

E-Print Network (OSTI)

Acknowledgements for Community White Paper in ComputationalComputational Biology white paper Is there strong objectionportions of community white paper on high end computing

Shoichet, Brian

2011-01-01T23:59:59.000Z

232

Spherical Nanoporous Phosphate Composites: High Performance ...  

Science Conference Proceedings (OSTI)

... great impact on transportation technology by partially or completely replacing gasoline. ... Enabling High Energy Density Redox Chemistries and 3D Electrode ...

233

Software Reuse in High Performance Computing Shirley Browne  

E-Print Network (OSTI)

Software Reuse in High Performance Computing Shirley Browne University of Tennessee 107 Ayres Hall high performance computing architectures in the form of distributed memorymul- tiprocessors have become of programming applications to run on these machines. Economical use of high performance computing and subsequent

Dongarra, Jack

234

Advanced Environments and Tools for High Performance Computing  

E-Print Network (OSTI)

Advanced Environments and Tools for High Performance Computing Problem-Solving Environments Environments and Tools for High Performance Computing. The conference was chaired by Professor D. W. Walker and managing distributed high performance comput- ing resources is important for a PSE to meet the requirements

Walker, David W.

235

A Study of Software Development for High Performance Computing  

E-Print Network (OSTI)

A Study of Software Development for High Performance Computing Manish Parashar, Salim Hariri Parallel Distributed Systems, 1994 Abstract Software development in a High Performance Computing (HPC. The objective of this paper is to study the software development process in a high performance computing

Parashar, Manish

236

High Performance Computing (HPC) Central Storage Resources for Research Support  

E-Print Network (OSTI)

High Performance Computing (HPC) Central Storage Resources for Research Support Effective for FY. They also describe new applications and technologies related to research in high performance computing2011 Revised: March 7, 2011 Page 1 Information Technology Purpose This memo summarizes High Performance

Shull, Kenneth R.

237

Applying High Performance Computing to Analyzing by Probabilistic Model Checking  

E-Print Network (OSTI)

Applying High Performance Computing to Analyzing by Probabilistic Model Checking Mobile Cellular on the use of high performance computing in order to analyze with the proba- bilistic model checker PRISM. The Figure Generation Script 22 2 #12;1. Introduction We report in this paper on the use of high performance

Schneider, Carsten

238

Universal High Performance Computing ---We Have Just Begun  

E-Print Network (OSTI)

Universal High Performance Computing --- We Have Just Begun Jerome A. Feldman April, 1994, and deployment. At present, high performance computing is entirely different. Although there have been some commercial factor. A prerequisite for Universal High Performance Computing (UHPC) is con­ vergence

California at Berkeley, University of

239

Evaluating Parameter Sweep Workflows in High Performance Computing*  

E-Print Network (OSTI)

Evaluating Parameter Sweep Workflows in High Performance Computing* Fernando Chirigati1,# , Vítor a large amount of tasks that are submitted to High Performance Computing (HPC) environments. Different, Parameter Sweep, High Performance Computing (HPC) 1. INTRODUCTION1 # Many scientific experiments are based

Paris-Sud XI, Université de

240

Software Reuse in High Performance Computing Shirley Browne  

E-Print Network (OSTI)

Software Reuse in High Performance Computing Shirley Browne University of Tennessee 107 Ayres Hall high performance computing architectures in the form of distributed memory mul­ tiprocessors have and cost of programming applications to run on these machines. Economical use of high performance computing

Dongarra, Jack

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


241

High Performance Computing with a Conservative Spectral Boltzmann Solver  

E-Print Network (OSTI)

High Performance Computing with a Conservative Spectral Boltzmann Solver Jeffrey R. Haack and Irene the structure of the collisional formulation for high performance computing environments. The locality in space on high performance computing resources. We also use the improved computational power of this method

242

1High Performance Computing at Liberal Arts Colleges Workshop 3  

E-Print Network (OSTI)

1High Performance Computing at Liberal Arts Colleges ­ Workshop 3 11October 27, 2009 Experiences (?) #12;2High Performance Computing at Liberal Arts Colleges ­ Workshop 3 22 Acknowledgements Thanks to. October 27, 2009 #12;3High Performance Computing at Liberal Arts Colleges ­ Workshop 3 33October 27, 2009

Barr, Valerie

243

High Performance www.rrze.uni-erlangen.de  

E-Print Network (OSTI)

High Performance Computing at RRZE 2008 HPCatRRZE www.rrze.uni-erlangen.de #12;G. Hager, T. Zeiser and G. Wellein: Concepts of High Performance Computing. In: Fehske et al. Lect. Notes Phys. 739, 681 Optimization Techniques for the Hitachi SR8000 architecture. In: A. Bode (Ed.) : High Performance Computing

Fiebig, Peter

244

Studying Code Development for High Performance Computing: The HPCS Program  

E-Print Network (OSTI)

Studying Code Development for High Performance Computing: The HPCS Program Jeff Carver1 , Sima at measuring the development time for programs written for high performance computers (HPC). Our goal. Introduction The development of High-Performance Computing (HPC) programs (codes) is crucial to progress

Basili, Victor R.

245

Developing Market Opportunities for Flexible Rooftop Applications of PV Using Flexible CIGS Technology: Market Considerations  

SciTech Connect

There has been a recent upsurge in developments for building-integrated phototovoltaics (BiPV) roof top materials based on CIGS. Several new companies have increased their presence and are looking to bring products to market for this application in 2011. For roof-top application, there are significant key requirements beyond just having good conversion efficiency. Other attributes include lightweight, as well as moisture-proof, and fully functionally reliable. The companies bringing these new BIPV/BAPV products need to ensure functionality with a rigorous series of tests, and have an extensive set of 'torture' tests to validate the capability. There is a convergence of form, aesthetics, and physics to ensure that the CIGS BiPV deliver on their promises. This article will cover the developments in this segment of the BiPV market and delve into the specific tests and measurements needed to characterize the products. The potential market sizes are evaluated and the technical considerations developed.

Sabnani, L.; Skumanich, A.; Ryabova, E.; Noufi, R.

2011-01-01T23:59:59.000Z

246

High-performance Electrochemical Capacitors - Energy ...  

... metal oxides on the high-surface-area walls of carbon nanofoam papers (0 ... Pairing MnOxcarbon nanofoam with FeOxcarbon nanofoam yields an energy ...

247

High Performance Windows Volume Purchase: For Utilities  

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

and mixed climates, R-5 windows on average reduce window heat loss by 40% and overall space conditioning costs by 10% relative to common ENERGY STAR windows. Promotion of high...

248

Commodity High Performance Computing at Commodity Prices  

E-Print Network (OSTI)

The entry price of supercomputing has traditionally been very high. As processing elements, operating systems, and switch technology become cheap commodity parts, building a powerful supercomputer at a fraction of the price of a proprietary system becomes realistic.

Simon Cox Denis; Simon J. Cox; Denis A. Nicole; Kenji Takeda

1998-01-01T23:59:59.000Z

249

Available Technologies: Novel High-Performance Scintillators ...  

Oil exploration ; X-ray detection; ADVANTAGES: Extremely high light yield (80,000+ photons/MeV) ... (full width half maximum of the 662 keV absorption ...

250

High Performance Green LEDs by Homoepitaxial  

SciTech Connect

This work's objective was the development of processes to double or triple the light output power from green and deep green (525 - 555 nm) AlGaInN light emitting diode (LED) dies within 3 years in reference to the Lumileds Luxeon II. The project paid particular effort to all aspects of the internal generation efficiency of light. LEDs in this spectral region show the highest potential for significant performance boosts and enable the realization of phosphor-free white LEDs comprised by red-green-blue LED modules. Such modules will perform at and outperform the efficacy target projections for white-light LED systems in the Department of Energy's accelerated roadmap of the SSL initiative.

Wetzel, Christian; Schubert, E Fred

2009-11-22T23:59:59.000Z

251

May 28, 2007 Middleware in Modern High Performance Computing System Architectures 1/20 Middleware in Modern High Performance  

E-Print Network (OSTI)

May 28, 2007 Middleware in Modern High Performance Computing System Architectures 1/20 Middleware in Modern High Performance Computing System Architectures Christian Engelmann1,2, Hong Ong1, Stephen L 28, 2007 Middleware in Modern High Performance Computing System Architectures 2/20 Talk Outline

Engelmann, Christian

252

High intensity performance of the Brookhaven AGS  

SciTech Connect

Experience and results from recent high intensity proton running periods of the Brookhaven AGS, during which a record intensity for a proton synchrotron of 6.3 x 10{sup 13} protons/pulse was reached, is presented. This high beam intensity allowed for the simultaneous operation of three high precision rare kaon decay experiments. The record beam intensities were achieved after the 1.5 GeV Booster was commissioned and a transition jump system, a powerful transverse damper, and an rf upgrade in the AGS were completed. Recently even higher intensity proton synchrotrons are studied for neutron spallation sources or proton driver for a muon collider. Implications of the experiences from the AGS to these proposals and also possible future upgrades for the AGS are discussed.

Brennan, J.M.; Roser, T.

1996-07-01T23:59:59.000Z

253

Federal Energy Management Program: High-Performance Sustainable Building  

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

High-Performance High-Performance Sustainable Building Design for New Construction and Major Renovations to someone by E-mail Share Federal Energy Management Program: High-Performance Sustainable Building Design for New Construction and Major Renovations on Facebook Tweet about Federal Energy Management Program: High-Performance Sustainable Building Design for New Construction and Major Renovations on Twitter Bookmark Federal Energy Management Program: High-Performance Sustainable Building Design for New Construction and Major Renovations on Google Bookmark Federal Energy Management Program: High-Performance Sustainable Building Design for New Construction and Major Renovations on Delicious Rank Federal Energy Management Program: High-Performance Sustainable Building Design for New Construction and Major Renovations on Digg

254

Dehumidification Performance of Unitary Rooftop Air Conditioning Systems: K-Mart Demonstration  

Science Conference Proceedings (OSTI)

Applying various HVAC options--including heat pipe heat exchangers, reduced airflow, low temperature air, and modified fan operation--reduced the average relative humidity of a K-Mart store on the Mississippi coast during the hot humid summer season to below 50 percent. This demonstration will help utilities recommend the best practices for their retail customers.

1996-07-26T23:59:59.000Z

255

High-performance commercial building facades  

SciTech Connect

This study focuses on advanced building facades that use daylighting, sun control, ventilation systems, and dynamic systems. A quick perusal of the leading architectural magazines, or a discussion in most architectural firms today will eventually lead to mention of some of the innovative new buildings that are being constructed with all-glass facades. Most of these buildings are appearing in Europe, although interestingly U.S. A/E firms often have a leading role in their design. This ''emerging technology'' of heavily glazed fagades is often associated with buildings whose design goals include energy efficiency, sustainability, and a ''green'' image. While there are a number of new books on the subject with impressive photos and drawings, there is little critical examination of the actual performance of such buildings, and a generally poor understanding as to whether they achieve their performance goals, or even what those goals might be. Even if the building ''works'' it is often dangerous to take a design solution from one climate and location and transport it to a new one without a good causal understanding of how the systems work. In addition, there is a wide range of existing and emerging glazing and fenestration technologies in use in these buildings, many of which break new ground with respect to innovative structural use of glass. It is unclear as to how well many of these designs would work as currently formulated in California locations dominated by intense sunlight and seismic events. Finally, the costs of these systems are higher than normal facades, but claims of energy and productivity savings are used to justify some of them. Once again these claims, while plausible, are largely unsupported. There have been major advances in glazing and facade technology over the past 30 years and we expect to see continued innovation and product development. It is critical in this process to be able to understand which performance goals are being met by current technology and design solutions, and which ones need further development and refinement. The primary goal of this study is to clarify the state-of-the-art of the performance of advanced building facades so that California building owners and designers can make informed decisions as to the value of these building concepts in meeting design goals for energy efficiency, ventilation, productivity and sustainability.

Lee, Eleanor; Selkowitz, Stephen; Bazjanac, Vladimir; Inkarojrit, Vorapat; Kohler, Christian

2002-06-01T23:59:59.000Z

256

High-performance commercial building facades  

SciTech Connect

This study focuses on advanced building facades that use daylighting, sun control, ventilation systems, and dynamic systems. A quick perusal of the leading architectural magazines, or a discussion in most architectural firms today will eventually lead to mention of some of the innovative new buildings that are being constructed with all-glass facades. Most of these buildings are appearing in Europe, although interestingly U.S. A/E firms often have a leading role in their design. This ''emerging technology'' of heavily glazed fagades is often associated with buildings whose design goals include energy efficiency, sustainability, and a ''green'' image. While there are a number of new books on the subject with impressive photos and drawings, there is little critical examination of the actual performance of such buildings, and a generally poor understanding as to whether they achieve their performance goals, or even what those goals might be. Even if the building ''works'' it is often dangerous to take a design solution from one climate and location and transport it to a new one without a good causal understanding of how the systems work. In addition, there is a wide range of existing and emerging glazing and fenestration technologies in use in these buildings, many of which break new ground with respect to innovative structural use of glass. It is unclear as to how well many of these designs would work as currently formulated in California locations dominated by intense sunlight and seismic events. Finally, the costs of these systems are higher than normal facades, but claims of energy and productivity savings are used to justify some of them. Once again these claims, while plausible, are largely unsupported. There have been major advances in glazing and facade technology over the past 30 years and we expect to see continued innovation and product development. It is critical in this process to be able to understand which performance goals are being met by current technology and design solutions, and which ones need further development and refinement. The primary goal of this study is to clarify the state-of-the-art of the performance of advanced building facades so that California building owners and designers can make informed decisions as to the value of these building concepts in meeting design goals for energy efficiency, ventilation, productivity and sustainability.

Lee, Eleanor; Selkowitz, Stephen; Bazjanac, Vladimir; Inkarojrit, Vorapat; Kohler, Christian

2002-06-01T23:59:59.000Z

257

HIGH INTENSITY PERFORMANCE OF THE BROOKHAVEN AGS.  

SciTech Connect

The Brookhaven AGS provides 24 GeV protons for a multi-user program of fixed-target high energy physics experiments, such as the study of extremely rare Kaon decays. Up to 7 x 10{sup 13} protons are slowly extracted over 2.2 seconds each 5.1 seconds. The muon storage ring of the g-2 experiment is supplied with bunches of 7 x 10{sup 12} protons. Since the completion of the a 1.9 GeV Booster synchrotron and installation of a new high-power rf system and transition jump system in the AGS various modes of operation have been explored to overcome space charge limits and beam instabilities at these extreme beam intensities. Experiments have been done using barrier cavities to enable accumulation of debunched beam in the AGS as a potential path to significantly higher intensities. We report on the present understanding of intensity limitations and prospects for overcoming them.

AHRENS,L.A.; ALESSI,J.; BLASKIEWICZ,M.; BRENNAN,J.M.; BROWN,K.; GARDNER,C.; GLENN,J.W.; ROSER,T.; SMITH,K.S.; VAN ASSELT,W.; ZHANG,S.Y.

1999-03-29T23:59:59.000Z

258

High Performance Thermal Interface Technology Overview  

E-Print Network (OSTI)

An overview on recent developments in thermal interfaces is given with a focus on a novel thermal interface technology that allows the formation of 2-3 times thinner bondlines with strongly improved thermal properties at lower assembly pressures. This is achieved using nested hierarchical surface channels to control the particle stacking with highly particle-filled materials. Reliability testing with thermal cycling has also demonstrated a decrease in thermal resistance after extended times with longer overall lifetime compared to a flat interface.

R. Linderman; T. Brunschwiler; B. Smith; B. Michel

2008-01-07T23:59:59.000Z

259

Toward a new metric for ranking high performance computing systems.  

SciTech Connect

The High Performance Linpack (HPL), or Top 500, benchmark [1] is the most widely recognized and discussed metric for ranking high performance computing systems. However, HPL is increasingly unreliable as a true measure of system performance for a growing collection of important science and engineering applications. In this paper we describe a new high performance conjugate gradient (HPCG) benchmark. HPCG is composed of computations and data access patterns more commonly found in applications. Using HPCG we strive for a better correlation to real scientific application performance and expect to drive computer system design and implementation in directions that will better impact performance improvement.

Heroux, Michael Allen; Dongarra, Jack. [University of Tennessee, Knoxville, TN

2013-06-01T23:59:59.000Z

260

Video performance for high security applications.  

Science Conference Proceedings (OSTI)

The complexity of physical protection systems has increased to address modern threats to national security and emerging commercial technologies. A key element of modern physical protection systems is the data presented to the human operator used for rapid determination of the cause of an alarm, whether false (e.g., caused by an animal, debris, etc.) or real (e.g., a human adversary). Alarm assessment, the human validation of a sensor alarm, primarily relies on imaging technologies and video systems. Developing measures of effectiveness (MOE) that drive the design or evaluation of a video system or technology becomes a challenge, given the subjectivity of the application (e.g., alarm assessment). Sandia National Laboratories has conducted empirical analysis using field test data and mathematical models such as binomial distribution and Johnson target transfer functions to develop MOEs for video system technologies. Depending on the technology, the task of the security operator and the distance to the target, the Probability of Assessment (PAs) can be determined as a function of a variety of conditions or assumptions. PAs used as an MOE allows the systems engineer to conduct trade studies, make informed design decisions, or evaluate new higher-risk technologies. This paper outlines general video system design trade-offs, discusses ways video can be used to increase system performance and lists MOEs for video systems used in subjective applications such as alarm assessment.

Connell, Jack C.; Norman, Bradley C.

2010-06-01T23:59:59.000Z

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


261

Low Cost, High Performance, 50-year Electrode  

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

this ARPA-E project, Primus Power will develop an this ARPA-E project, Primus Power will develop an extremely durable, highly active, conductive, and inexpensive electrode for flow batteries. Flow batteries offer one of the most exciting opportunities for affordable grid storage, however electrodes are costly and are the single largest cost component in a well integrated design. Grid storage can yield numerous benefits in utility and customer- owned applications:  renewable firming  peak load reduction  load shifting  capital deferral  frequency regulation By incorporating volume production practices from the chlorine, filter media, and electroplating industries, Primus Power will effectively reduce electrode costs to exceed GRIDS cost targets while providing the durability essential for widespread grid-scale adoption.

262

Compiler-based Memory Optimizations for High Performance Computing Systems.  

E-Print Network (OSTI)

??Parallelism has always been the primary method to achieve higher performance. To advance the computational capabilities of state-of-the-art high performance computing systems, we continue to (more)

Kultursay, Emre

2013-01-01T23:59:59.000Z

263

Webinar: ENERGY STAR Hot Water Systems for High Performance Homes  

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

Star Hot Water Systems for High Performance Homes Star Hot Water Systems for High Performance Homes 1 | Building America Program www.buildingamerica.gov Buildings Technologies Program Date: September 30, 2011 ENERGY STAR ® Hot Water Systems for High Performance Homes Welcome to the Webinar! We will start at 11:00 AM Eastern. There is no call in number. The audio will be sent through your computer speakers. All questions will be submitted via typing. Video of presenters Energy Star Hot Water Systems for High Performance Homes 2 | Building America Program www.buildingamerica.gov Energy Star Hot Water Systems for High Performance Homes 3 | Building America Program www.buildingamerica.gov Building America Program: Introduction Building Technologies Program Energy Star Hot Water Systems for High Performance Homes

264

High Performance Windows Volume Purchase: For Light Commercial Buyers  

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

For Light For Light Commercial Buyers to someone by E-mail Share High Performance Windows Volume Purchase: For Light Commercial Buyers on Facebook Tweet about High Performance Windows Volume Purchase: For Light Commercial Buyers on Twitter Bookmark High Performance Windows Volume Purchase: For Light Commercial Buyers on Google Bookmark High Performance Windows Volume Purchase: For Light Commercial Buyers on Delicious Rank High Performance Windows Volume Purchase: For Light Commercial Buyers on Digg Find More places to share High Performance Windows Volume Purchase: For Light Commercial Buyers on AddThis.com... Home About For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers For Utilities Information Resources For Light Commercial Buyers Significant energy savings from low-E window technology are possible in the

265

High Performance Windows Volume Purchase: The Windows Volume Purchase RFP  

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

The Windows The Windows Volume Purchase RFP to someone by E-mail Share High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Facebook Tweet about High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Twitter Bookmark High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Google Bookmark High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Delicious Rank High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Digg Find More places to share High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on AddThis.com... Home About FAQs Low-E Storm Windows Request for Proposal Contacts For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers

266

High Performance Windows Volume Purchase: Presentations for Past Events and  

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

Presentations for Past Events and Webinars to someone by E-mail Share High Performance Windows Volume Purchase: Presentations for Past Events and Webinars on Facebook Tweet about High Performance Windows Volume Purchase: Presentations for Past Events and Webinars on Twitter Bookmark High Performance Windows Volume Purchase: Presentations for Past Events and Webinars on Google Bookmark High Performance Windows Volume Purchase: Presentations for Past Events and Webinars on Delicious Rank High Performance Windows Volume Purchase: Presentations for Past Events and Webinars on Digg Find More places to share High Performance Windows Volume Purchase: Presentations for Past Events and Webinars on AddThis.com... Home About For Builders For Residential Buyers For Light Commercial Buyers

267

High Performance Windows Volume Purchase: For Residential Buyers  

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

Residential Buyers to someone by E-mail Residential Buyers to someone by E-mail Share High Performance Windows Volume Purchase: For Residential Buyers on Facebook Tweet about High Performance Windows Volume Purchase: For Residential Buyers on Twitter Bookmark High Performance Windows Volume Purchase: For Residential Buyers on Google Bookmark High Performance Windows Volume Purchase: For Residential Buyers on Delicious Rank High Performance Windows Volume Purchase: For Residential Buyers on Digg Find More places to share High Performance Windows Volume Purchase: For Residential Buyers on AddThis.com... Home About For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers For Utilities Information Resources For Residential Buyers Both home owners and buyers can take advantage of the energy savings from

268

High performance solar control office windows  

SciTech Connect

Investigations conducted over a 9 month period on the use of ion beam sputtering methods for the fabrication of solar control windows for energy conservation are described. Principal emphasis was placed on colored, reflecting, heat rejecting, office building windows for reducing air conditioning loads and to aid in the design of energy conserving buildings. The coating techniques were developed primarily for use with conventional absorbing plate glass such as PPG solarbronze, but were also demonstrated on plastic substrates for retrofit applications. Extensive material investigations were conducted to determine the optimum obtainable characteristics, with associated weathering studies as appropriate aimed at achieving a 20 year minimum life. Conservative estimates indicate that successful commercialization of the windows developed under this program would result in energy savings of 16,000,000 barrels of oil/year by 1990 if installation were only 10 percent of new commercial building stock. These estimates are relative to existing design for energy conserving windows. Installation in a greater percentage of new stock and for retrofit applications could lead to proportionately greater energy savings. All such installations are projected as cost effective as well as energy effective. A secondary program was carried out to modify the techniques to yield thermal control windows for residential applications. These windows were designed to provide a high heat retention capability without seriously affecting their transmission of incident solar radiation, thereby enhancing the greenhouse effect. This part of the program was successful in producing a window form which could be interchanged for standard residential window material in a cost and energy effective manner. The only variation from standard stock in appearance is a very light rose or neutral gray coloring.

King, W.J.

1977-12-01T23:59:59.000Z

269

High Performance Builder Spotlight: Green Coast Enterprises - New Orleans,  

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

High Performance Builder Spotlight: Green Coast Enterprises - New High Performance Builder Spotlight: Green Coast Enterprises - New Orleans, Louisiana High Performance Builder Spotlight: Green Coast Enterprises - New Orleans, Louisiana This four-page case study describes Green Coast Enterprises efforts to rebuild hurricane-ravaged New Orleans through Project Home Again. green_coast_enterprises.pdf More Documents & Publications High Performance Builder Spotlight: Green Coast Enterprises - New Orleans, Louisiana Rising Above the Water: New Orleans Implements Energy Efficiency and Sustainability Practices Following Hurricanes Katrina and Rita (Fact Sheet), Integrated Deployment: Disaster Recovery (ID) Rising Above the Water: New Orleans Implements Energy Efficiency and Sustainability Practices Following Hurricanes Katrina and Rita (Fact

270

Durham County - High-Performance Building Policy | Department of Energy  

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

Durham County - High-Performance Building Policy Durham County - High-Performance Building Policy Durham County - High-Performance Building Policy < Back Eligibility Local Government Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Bioenergy Solar Lighting Windows, Doors, & Skylights Alternative Fuel Vehicles Hydrogen & Fuel Cells Heating Buying & Making Electricity Water Water Heating Wind Program Info State North Carolina Program Type Energy Standards for Public Buildings Provider Durham City and County Durham County adopted a resolution in October 2008 that requires new non-school public buildings and facilities to meet high-performance standards. New construction of public buildings and facilities greater than

271

Making The Business Case For High Performance Green Buildings...  

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

Making The Business Case For High Performance Green Buildings Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings...

272

Effect of memory access and caching on high performance computing.  

E-Print Network (OSTI)

??High-performance computing is often limited by memory access. As speeds increase, processors are often waiting on data transfers to and from memory. Classic memory controllers (more)

Groening, James

2012-01-01T23:59:59.000Z

273

NREL: Computational Science - High-Performance Computing Capabilities  

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

High-Performance Computing Capabilities The Computational Science Center carries out research using computers as the primary tool of investigation. The Center focuses on supporting...

274

Use of high performance computing in neutronics analysis activities  

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

high performance computing in neutronics analysis activities M.A. Smith Argonne National Laboratory 9700 South Cass Avenue, Argonne Illinois 60439, USA Abstract Reactor design is...

275

High Performance Computing Systems Integration, HPC-5: HPC: LANL...  

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

Fax: 664-0172 MS B272 Latest in cluster technologies New technology in High Performance Computing and Simulation HPC-5 provides advanced research, development, testing, and...

276

64 _____________________________________Math & Computational Sciences Division High Performance Computing and Visualization  

E-Print Network (OSTI)

64 _____________________________________Math & Computational Sciences Division High Performance Computing and Visualization Research and Development in Visual Analysis Judith Devaney Terrence Griffin John

Perkins, Richard A.

277

Homepage: Computing Operations & Support, HPC-2: High-Performance...  

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

2 Home SERVICES PRODUCTS Data Storage ES&H Management and Support High Performance Computing Operations Procurement Computer Support CONTACTS Group Leader (Acting) Cindy Martin...

278

Application of High Performance Computing to the DOE Joint Genomic...  

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

Application of High Performance Computing to the DOE Joint Genomic Institute's Data Challenges January 25-26, 2010 DOE Joint Genome Institute, Walnut Creek, CA USA -by invitation...

279

In the OSTI Collections: High-Performance Computing | OSTI, US...  

Office of Scientific and Technical Information (OSTI)

Sandia National Laboratories in the report "Toward a New Metric for Ranking High Performance Computing Systems" SciTech Connect, which describes a new benchmark that represents...

280

High Performance Photovoltaic Project: Identifying Critical Paths; Preprint  

DOE Green Energy (OSTI)

Presented at the 2001 NCPV Program Review Meeting: Describes recent research accomplishments in in-house and subcontracted work in the High-Performance PV Project.

Symko-Davies, M.; Zweibel, K.; Benner, J.; Sheldon, P.; Noufi, R.; Kurtz, S.; Coutts, T.; Hulstrom, R.

2001-10-01T23:59:59.000Z

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


281

Argonne CNM Highlight: High-Performance Nano-Bio Photocatalyst...  

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

A High-Performance Nano-Bio Photocatalyst for Targeted Brain Cancer Therapy Nano-Bio Photocatalyst for Targeted Brain Cancer Therapy Scientists from the CNM's Nanobio Interfaces...

282

NREL: News - NREL Selects Partners for New High Performance Computer...  

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

cooling to accelerate innovation in more efficient use of energy critical for achieving exascale performance by end of the decade," Stephen Wheat, general manager of High...

283

Net-Zero Energy, High-Performance Buildings Program  

Science Conference Proceedings (OSTI)

Net-Zero Energy, High-Performance Buildings Program. ... NIST completed design and construction of Net-Zero Energy Residential Test Facility; ...

2013-05-03T23:59:59.000Z

284

Microbenchmark Performance Comparison of High-Speed Cluster Interconnects  

Science Conference Proceedings (OSTI)

High-speed cluster interconnects Myrinet, Quadrics, and InfiniBand achieve low latency and high bandwidth with low host overhead. However, they show quite different performance behaviors when handling communication buffer reuse patterns.

Jiuxing Liu; Balasubramanian Chandrasekaran; Weikuan Yu; Jiesheng Wu; Darius Buntinas; Sushmitha Kini; Dhabaleswar K. Panda; Pete Wyckoff

2004-01-01T23:59:59.000Z

285

A generic high-performance method for deinterleaving scientific data  

Science Conference Proceedings (OSTI)

High-performance and energy-efficient data management applications are a necessity for HPC systems due to the extreme scale of data produced by high fidelity scientific simulations that these systems support. Data layout in memory hugely impacts the ...

Eric R. Schendel, Steve Harenberg, Houjun Tang, Venkatram Vishwanath, Michael E. Papka, Nagiza F. Samatova

2013-08-01T23:59:59.000Z

286

Memorandum of American High-Performance Buildings Coalition DOE Meeting  

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

Memorandum of American High-Performance Buildings Coalition DOE Memorandum of American High-Performance Buildings Coalition DOE Meeting August 19, 2013 Memorandum of American High-Performance Buildings Coalition DOE Meeting August 19, 2013 This memorandum is intended to provide a summary of a meeting between the American HighPerformance Buildings Coalition (AHBPC), a coalition of industry organizations committed to promoting performance-based energy efficiency and sustainable building standards developed through true, consensus-bases processes, and the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE) that took place on Monday, August 19, 2013. Memorandum of AHPBC DOE Meeting_8_19_2013_FINAL_SIGNED More Documents & Publications Federal Leadership in High Performance and Sustainable Buildings Memorandum

287

Building Technologies Office: Advanced Insulation for High Performance  

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

Advanced Insulation for Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project to someone by E-mail Share Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Facebook Tweet about Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Twitter Bookmark Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Google Bookmark Building Technologies Office: Advanced Insulation for High Performance Cost-Effective Wall, Roof, and Foundation Systems Research Project on Delicious Rank Building Technologies Office: Advanced Insulation for High

288

Grid-Controlled Lightpaths for High Performance Grid Applications  

E-Print Network (OSTI)

be shared among users and easily integrated with data and computation Grids. Keywords: network support for a data Grid supported by a high-performance network. Another concern in deploying Grids over the InternetGrid-Controlled Lightpaths for High Performance Grid Applications Raouf Boutaba, Wojciech Golab

Boutaba, Raouf

289

Optimization of high-performance superscalar architectures for energy efficiency  

Science Conference Proceedings (OSTI)

In recent years reducing power has become a critical design goal for high-performance microprocessors. This work attempts to bring the power issue to the earliest phase of high-performance microprocessor development. We propose a methodology for power-optimization ...

V. Zyuban; P. Kogge

2000-08-01T23:59:59.000Z

290

Molecular Dynamics Simulations on High-Performance Reconfigurable Computing Systems  

Science Conference Proceedings (OSTI)

The acceleration of molecular dynamics (MD) simulations using high-performance reconfigurable computing (HPRC) has been much studied. Given the intense competition from multicore and GPUs, there is now a question whether MD on HPRC can be competitive. ... Keywords: FPGA-based coprocessors, application acceleration, bioinformatics, biological sequence alignment, high performance reconfigurable computing

Matt Chiu; Martin C. Herbordt

2010-11-01T23:59:59.000Z

291

Principles of energy efficiency in high performance computing  

Science Conference Proceedings (OSTI)

High Performance Computing (HPC) is a key technology for modern researchers enabling scientific advances through simulation where experiments are either technically impossible or financially not feasible to conduct and theory is not applicable. However, ... Keywords: HPC, PUE, energy efficiency, high performance computing, power usage effectiveness

Axel Auweter; Arndt Bode; Matthias Brehm; Herbert Huber; Dieter Kranzlmller

2011-08-01T23:59:59.000Z

292

High-performance Computing in China: Research and Applications  

Science Conference Proceedings (OSTI)

In this report we review the history of high-performance computing (HPC) system development and applications in China and describe the current status of major government programs, HPC centers and facilities, major research institutions, important HPC ... Keywords: China, High performance computing, research and applications

Ninghui Sun; David Kahaner; Debbie Chen

2010-11-01T23:59:59.000Z

293

High-performance verification of large concurrent systems  

E-Print Network (OSTI)

High-performance verification of large concurrent systems Elbie taKrpska Ph.D. Thesis VU University Systems Ph.D. Thesis Elzbieta Krepska VU University Amsterdam, 2012 #12;This research was funded by the VU. #12;VRIJE UNIVERSITEIT TOWARDS BIG BIOLOGY: HIGH-PERFORMANCE VERIFICATION OF LARGE CONCURRENT SYSTEMS

Bal, Henri E.

294

LinBox and future high performance computer algebra  

Science Conference Proceedings (OSTI)

Computer chip design is entering an era in which further increases in computational power will come by increased on-chip parallelism through multi-core architectures rather than by increasing clock speed. If high performance computer algebra tools are ... Keywords: high performance, multi-core, parallel computation

Bruce W. Char; B. David Saunders; Bryan Youse

2007-07-01T23:59:59.000Z

295

Towards green computing using diskless high performance clusters  

Science Conference Proceedings (OSTI)

In recent years, significant research has been conducted to boost the performance and increase the reliability of high performance computing (HPC) clusters. As the number of compute nodes in modern HPC clusters continues to grow, it is critical to design ... Keywords: Linux, cluster computing and architecture, green computing, performance evaluation

K. Salah; R. Al-Shaikh; M. Sindi

2011-10-01T23:59:59.000Z

296

Howard County - High Performance and Green Building Property Tax Credits |  

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

Howard County - High Performance and Green Building Property Tax Howard County - High Performance and Green Building Property Tax Credits Howard County - High Performance and Green Building Property Tax Credits < Back Eligibility Commercial Multi-Family Residential Residential Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Bioenergy Solar Lighting Windows, Doors, & Skylights Heating Buying & Making Electricity Water Water Heating Wind Maximum Rebate High Performance Buildings: none specified High Performance R-2, R-3 Buildings: $5,000 per building or owner-occupied unit Green Buildings (w/energy conservation devices): limited to assessed property taxes on the structure Program Info Start Date 07/01/2008 State Maryland

297

Guiding Principles for Federal Leadership in High-Performance and  

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

Guiding Principles for Federal Leadership in High-Performance and Guiding Principles for Federal Leadership in High-Performance and Sustainable Buildings Guiding Principles for Federal Leadership in High-Performance and Sustainable Buildings October 4, 2013 - 4:49pm Addthis The Federal Energy Management Program (FEMP) provides guidance and assistance for compliance with the guiding principles established by the 2006 Federal Leadership in High-Performance and Sustainable Buildings Memorandum of Understanding (MOU), which became mandatory through Executive Order (E.O.) 13423 and reinforced in E.O. 13514. The common set of guiding principles include those for: Integrated design Energy performance Water conservation Materials to help: Reduce the total ownership cost of facilities Improve energy efficiency and water conservation

298

Energy based performance tuning for large scale high performance computing systems  

Science Conference Proceedings (OSTI)

Recognition of the importance of power in the field of High Performance Computing, whether it be as an obstacle, expense or design consideration, has never been greater and more pervasive. In response to this challenge, we exploit the unique power measurement ... Keywords: energy efficiency, frequency scaling, high performance computing (HPC), power

James H. Laros, III; Kevin T. Pedretti; Suzanne M. Kelly; Wei Shu; Courtenay T. Vaughan

2012-03-01T23:59:59.000Z

299

High Performance Commercial Buildings Technology Roadmap | Open Energy  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » High Performance Commercial Buildings Technology Roadmap Jump to: navigation, search Tool Summary Name: High Performance Commercial Buildings Technology Roadmap Agency/Company /Organization: National Renewable Energy Laboratory Sector: Energy Focus Area: Energy Efficiency, Buildings Topics: Technology characterizations Resource Type: Dataset Website: www.nrel.gov/docs/fy01osti/30171.pdf References: High Performance Commercial Buildings Technology Roadmap[1] Overview "This technology roadmap describes the vision and strategies for addressing these challenges developed by representatives of the buildings industry. Collaborative research, development, and deployment of new technologies, coupled with an integrated "whole-buildings" approach, can shape future

300

Rebuilding It Better: Greensburg, Kansas, High Performance Buildings  

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

Greensburg, Kansas, High Performance Greensburg, Kansas, High Performance Buildings Meeting Energy Savings Goals (Brochure) (Revised), Energy Efficiency & Renewable Energy (EERE) Rebuilding It Better: Greensburg, Kansas, High Performance Buildings Meeting Energy Savings Goals (Brochure) (Revised), Energy Efficiency & Renewable Energy (EERE) This fact sheet provides a summary of how NREL's technical assistance in Greensburg, Kansas, helped the town rebuild green after recovering from a tornado in May 2007. 53539.pdf More Documents & Publications From Tragedy to Triumph: Rebuilding Greensburg, Kansas To Be a 100% Renewable Energy City: Preprint Rebuilding It Better; BTI-Greensburg, John Deere Dealership (Brochure) (Revised) Rebuilding Greensburg, Kansas, as a Model Green Community: A Case Study;

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


301

High-Performance Building Requirements for State Buildings | Department of  

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

You are here You are here Home » High-Performance Building Requirements for State Buildings High-Performance Building Requirements for State Buildings < Back Eligibility State Government Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Bioenergy Manufacturing Buying & Making Electricity Solar Lighting Windows, Doors, & Skylights Heating Water Water Heating Wind Program Info State South Dakota Program Type Energy Standards for Public Buildings Provider Office of the State Engineer In March 2008, South Dakota enacted legislation mandating the use of high-performance building standards in new state construction and renovations. This policy requires that new and renovated state buildings

302

Evaluation of GPFS Connectivity Over High-Performance Networks  

Science Conference Proceedings (OSTI)

We present the results of an evaluation of new features of the latest release of IBM's GPFS filesystem (v3.2). We investigate different ways of connecting to a high-performance GPFS filesystem from a remote cluster using Infiniband (IB) and 10 Gigabit Ethernet. We also examine the performance of the GPFS filesystem with both serial and parallel I/O. Finally, we also present our recommendations for effective ways of utilizing high-bandwidth networks for high-performance I/O to parallel file systems.

Srinivasan, Jay; Canon, Shane; Andrews, Matthew

2009-02-17T23:59:59.000Z

303

High Impact Performance Incentive Grant (Florida) | Department of Energy  

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

Impact Performance Incentive Grant (Florida) Impact Performance Incentive Grant (Florida) High Impact Performance Incentive Grant (Florida) < Back Eligibility Commercial Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Florida Program Type Grant Program Provider Enterprise Florida The High Impact Performance Incentive Grant (HIPI) is a negotiated grant used to attract and grow major high impact facilities in Florida. Grants are provided to pre-approved applicants in certain high-impact sectors such as clean energy. Projects must create at least 50 new full-time jobs in a three-year period, and make a cumulative investment in the state of at least $50 million in a three year period. The business can be granted 50%

304

High Performance Building Standards in State Buildings | Department of  

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

High Performance Building Standards in State Buildings High Performance Building Standards in State Buildings High Performance Building Standards in State Buildings < Back Eligibility State Government Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Bioenergy Manufacturing Buying & Making Electricity Solar Lighting Windows, Doors, & Skylights Heating Water Water Heating Wind Program Info State Oklahoma Program Type Energy Standards for Public Buildings Provider Oklahoma Department of Central Services In June 2008, the governor of Oklahoma signed [http://webserver1.lsb.state.ok.us/2007-08bills/HB/hb3394_enr.rtf HB 3394] requiring the state to develop a high-performance building certification program for state construction and renovation projects. The standard, which

305

Montgomery County- High Performance Building Property Tax Credit  

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

The state of Maryland permits local governments (Md Code: Property Tax 9-242) to offer property tax credits for high performance buildings if they choose to do so. Montgomery County has...

306

The Extreme Benchmark Suite : measuring high-performance embedded systems  

E-Print Network (OSTI)

The Extreme Benchmark Suite (XBS) is designed to support performance measurement of highly parallel "extreme" processors, many of which are designed to replace custom hardware implementations. XBS is designed to avoid many ...

Gerding, Steven (Steven Bradley)

2005-01-01T23:59:59.000Z

307

Littles law and high performance computing  

E-Print Network (OSTI)

This note discuses Littles law and relates the form cited in queuing theory with a form often cited in the field of high performance computing. A rigorous mathematical proof of Littles law is included.

David H. Bailey

1997-01-01T23:59:59.000Z

308

Humanities and High Performance Computers Connect at NERSC -...  

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

or translated into English, which may have been influenced by the classics. "High performance computing really allows us to ask questions on a scale that we haven't been able to...

309

Los Alamos Lab: High-Performance Computing: Cielo supercomputer  

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

ADTSC: High Performance Computing, HPC Home About Us Cielo CCC5 Call CCC Template (.doc) ASC Program Links ASC Headquarters ASC LANL ASC LLNL ASC Sandia Cielo Project Contacts...

310

Los Alamos Lab: High-Performance Computing: Roadrunner  

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

ron unne r reta LANL has always been an early adopter of transformational high performance computing (HPC) technology. For example, in the 1970s when HPC was scalar; LANL...

311

Improving Real World Efficiency of High Performance Buildings  

E-Print Network (OSTI)

Improving Real World Efficiency of High Performance Buildings Buildings End-Use Energy Efficiency Research www.energy.ca.gov/research/buildings February 2012 The Issue Highperformance buildings efficiency in highperformance buildings, however, are not always realized in practice. Addressing

312

High Performance Building Standards in New State Construction  

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

In January 2008, New Jersey enacted legislation mandating the use of high performance green building standards in new state construction. The standard requires that new buildings larger than 15...

313

A HIGH PERFORMANCE/LOW COST ACCELERATOR CONTROL SYSTEM  

E-Print Network (OSTI)

LOW COST ACCELERATOR CONTROL SYSTEM S. Hagyary, J. Glat H.LOW COST ACCELERATOR CONTROL SYSTEM S. Magyary, J. Glatz, H.a high performance computer control system tailored to the

Magyary, S.

2010-01-01T23:59:59.000Z

314

High Performance Flow Simulations on Graphics Processing Units  

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

High Performance Flow Simulations on Graphics Processing Units Speaker(s): Wangda Zuo Date: June 17, 2010 - 12:00pm Location: 90-3122 Seminar HostPoint of Contact: Michael Wetter...

315

Design of wind turbines with Ultra-High Performance Concrete  

E-Print Network (OSTI)

Ultra-High Performance Concrete (UHPC) has proven an asset for bridge design as it significantly reduces costs. However, UHPC has not been applied yet to wind turbine technology. Design codes do not propose any recommendations ...

Jammes, Franois-Xavier

2009-01-01T23:59:59.000Z

316

High Performance Windows Volume Purchase: Subscribe to Windows...  

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

Subscribe to Windows Volume Purchase Event News and Updates to someone by E-mail Share High Performance Windows Volume Purchase: Subscribe to Windows Volume Purchase Event News and...

317

Mercury: Enabling Remote Procedure Call for High-Performance...  

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

of High-Performance Computing (HPC), allows the execution of routines to be delegated to remote nodes, which can be set aside and dedicated to specific tasks. However, existing...

318

High Performance Green Schools Planning Grants | Department of Energy  

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

High Performance Green Schools Planning Grants High Performance Green Schools Planning Grants High Performance Green Schools Planning Grants < Back Eligibility Schools Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Bioenergy Solar Lighting Windows, Doors, & Skylights Heating Buying & Making Electricity Water Water Heating Wind Program Info State Pennsylvania Program Type State Grant Program Rebate Amount Determined on a case-by-case basis Provider Governor's Green Government Council The Governor's Green Government Council of Pennsylvania provides an incentive for new schools to be built according to green building standards. High Performance Green Schools Planning Grants are designed to cover a portion of the "soft" costs of designing a green building that are

319

Energy Design Guidelines for High Performance Schools: Tropical Island Climates  

SciTech Connect

The Energy Design Guidelines for High Performance Schools--Tropical Island Climates provides school boards, administrators, and design staff with guidance to help them make informed decisions about energy and environmental issues important to school systems and communities. These design guidelines outline high performance principles for the new or retrofit design of your K-12 school in tropical island climates. By incorporating energy improvements into their construction or renovation plans, schools can significantly reduce energy consumption and costs.

Not Available

2004-11-01T23:59:59.000Z

320

Dependable high performance computing on a parallel sysplex cluster  

E-Print Network (OSTI)

Abstract In this paper we address the issue of dependable distributed high performance computing in the field of Symbolic Computation. We describe the extension of a middleware infrastructure designed for high performance computing with efficient checkpointing mechanisms. As target platform an IBM Parallel Sysplex Cluster is used. We consider the satisfiability checking problem for boolean formulae as an example application from the realm of Symbolic Computation. Time measurements for an implementation of this application on top of the described system environment are given.

Wolfgang Blochinger

2000-01-01T23:59:59.000Z

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


321

Low cost high performance generator technology program. Addendum report  

DOE Green Energy (OSTI)

The results of a system weight, efficiency, and size analysis which was performed on the 500 W(e) low cost high performance generator (LCHPG) are presented. The analysis was performed in an attempt to improve system efficiency and specific power over those presented in June 1975, System Design Study Report TES-SNSO-3-25. Heat source volume, configuration, and safety as related to the 500 W(e) LCHPG are also discussed. (RCK)

Not Available

1975-09-01T23:59:59.000Z

322

Complex version of high performance computing LINPACK benchmark (HPL)  

Science Conference Proceedings (OSTI)

This paper describes our effort to enhance the performance of the AORSA fusion energy simulation program through the use of high-performance LINPACK (HPL) benchmark, commonly used in ranking the top 500 supercomputers. The algorithm used by HPL, enhanced ... Keywords: HPL, parallel dense solver

R. F. Barrett; T. H. F. Chan; E. F. D'Azevedo; E. F. Jaeger; K. Wong; R. Y. Wong

2010-04-01T23:59:59.000Z

323

Building Technologies Office: High Performance Windows Volume Purchase  

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

High Performance Windows Volume Purchase High Performance Windows Volume Purchase DOE's Building Technologies Office (BTO) is coordinating a volume purchase of high performance windows, and low-e storm windows, to expand the market of these high efficiency products. Price is the principal barrier to more widespread market commercialization. The aim of this volume purchase initiative is to work with industry and potential buyers to make highly insulated windows more affordable. Announcement EPA Most Efficient Program for window technology to launched in January 2013. Program Highlights Features Image of person signing document. Volume Purchase RFP Arrow Image of a question mark. Frequently Asked Questions Arrow Image of low-e storm window with two orange-yellow arrows hitting the window and reflecting back inside. Building Envelope and Windows R&D Program Blog Arrow

324

Nitrogen modification of highly porous carbon for improved supercapacitor performance  

E-Print Network (OSTI)

Nitrogen modification of highly porous carbon for improved supercapacitor performance Stephanie L for supercapacitor applications. Surface modification increases the amount of nitrogen by four times when compared elements in highly porous carbon used for electric double-layer supercapacitors.1 These elements modify

Cao, Guozhong

325

10 ASHRAE Journal November 2004 Re: High-Performance Buildings  

E-Print Network (OSTI)

10 ASHRAE Journal November 2004 Re: High-Performance Buildings In their recent article, "High energy-per- formance for a green academic building." ASHRAE Transac- tions, 108 promoting their own buildings. But the public requires and ASHRAE should demand more. John Scofield, Ph

Scofield, John H.

326

High performance low power CMOS dynamic logic for arithmetic circuits  

Science Conference Proceedings (OSTI)

This paper presents the design of high performance and low power arithmetic circuits using a new CMOS dynamic logic family, and analyzes its sensitivity against technology parameters for practical applications. The proposed dynamic logic family allows ... Keywords: CMOS digital integrated circuits, CMOS logic circuits, Dynamic logic, High speed arithmetic circuits, Low power arithmetic circuits

Victor Navarro-Botello; Juan A. Montiel-Nelson; Saeid Nooshabadi

2007-04-01T23:59:59.000Z

327

High Performance Building Façade Solutions  

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

High Performance Building Façade Solutions High Performance Building Façade Solutions High Performance Building Façade Solutions Buildings Technology Department, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory Glazing and façade systems have very large impacts on all aspects of commercial building performance. They directly influence peak heating and cooling loads, and indirectly influence lighting loads when daylighting is considered. In addition to being a major determinant of annual energy use, they can have significant impacts on peak cooling system sizing, electric load shape, and peak electric demand. Because they are prominent architectural and design elements and because they influence occupant preference, satisfaction and comfort, the design optimization challenge is

328

Home Performance with Energy Star High Efficiency Measure Incentive (HEMI)  

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

Home Performance with Energy Star High Efficiency Measure Incentive Home Performance with Energy Star High Efficiency Measure Incentive (HEMI) Home Performance with Energy Star High Efficiency Measure Incentive (HEMI) < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Commercial Weatherization Cooling Appliances & Electronics Sealing Your Home Ventilation Manufacturing Commercial Lighting Lighting Water Heating Maximum Rebate $3,000 Program Info State New York Program Type State Rebate Program Rebate Amount 10% of project costs Provider New York State Energy Research and Development Authority The New York State Research and Development Authority (NYSERDA) offers an incentive for homeowners of 1-4 homes that participate in the Home Performance with Energy Star program. The program entitles the participant

329

Building America's Top Innovations Advance High Performance Homes |  

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

America's Top America's Top Innovations Advance High Performance Homes Building America's Top Innovations Advance High Performance Homes Building America Top Innovations. Recognizing top innovations in building science. Innovations sponsored by the U.S. Department of Energy's (DOE) Building America program and its teams of building science experts continue to have a transforming impact, leading our nation's home building industry to high-performance homes. Building America researchers have worked directly with more than 300 U.S. production home builders and have boosted the performance of more than 42,000 new homes. Learn more about Building America Top Innovations. 2013 Top Innovations New Top Innovations are awarded annually for outstanding Building America research achievements. Learn more about the 2013 Top Innovations recently

330

Simulation and High-Performance Computing | Department of Energy  

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

Simulation and High-Performance Computing Simulation and High-Performance Computing Simulation and High-Performance Computing October 29, 2010 - 12:22pm Addthis Former Under Secretary Koonin Former Under Secretary Koonin Director - NYU's Center for Urban Science & Progress and Former Under Secretary for Science What are the key facts? The Chinese's Tianhe-1A machine is now the world's most powerful computer, 40% faster than the fastest American machine located at Oak Ridge National Laboratory. Of the top 500 supercomputers in the world, more than half are in the U.S., and 90% were built by U.S. hardware vendors. We are developing the next generation of supercomputers over the next decade, which will be capable of exaflop-class performance (a factor of 1000 more powerful than today's most powerful computers).

331

Coordinated resource management for guaranteed high performance and efficient utilization in Lambda-Grids  

E-Print Network (OSTI)

Journal of High Performance Computing Applications, AugustConference on High Performance Computing and Communication (Symposium on High-Performance Computing in an Advanced

Taesombut, Nut

2007-01-01T23:59:59.000Z

332

On the user-scheduler relationship in high-performance computing  

E-Print Network (OSTI)

1.1. High-Performance Computing . . . . . . . . 1.2. ProblemJournal of High Performance Computing Applications, 19(4):IEEE Conference on High Performance Computing, Networking,

Lee, Cynthia Bailey

2009-01-01T23:59:59.000Z

333

NERSC 2011: High Performance Computing Facility Operational Assessment for the National Energy Research Scientific Computing Center  

E-Print Network (OSTI)

NERSC 2011 High Performance Computing Facility Operationalby providing high-performance computing, information, data,s deep knowledge of high performance computing to overcome

Antypas, Katie

2013-01-01T23:59:59.000Z

334

Energy-aware high performance computing: a taxonomy study, in  

E-Print Network (OSTI)

AbstractTo reduce the energy consumption and build a sustainable computer infrastructure now becomes a major goal of the high performance community. A number of research projects have been carried out in the field of energy-aware high performance computing. This paper is devoted to categorize energy-aware computing methods for the high-end computing infrastructures, such as servers, clusters, data centers, and Grids/Clouds. Based on a taxonomy of methods and system scales, this paper reviews the current status of energy-aware HPC research and summarizes open questions and research directions of software architecture for future energy-aware HPC studies.

Chang Cai; Lizhe Wang; Samee U. Khan; Jie Tao

2011-01-01T23:59:59.000Z

335

High-Performance Photovoltaic Project: Identifying Critical Pathways; Kickoff Meeting  

DOE Green Energy (OSTI)

The High Performance Photovoltaic Project held a Kickoff Meeting in October, 2001. This booklet contains the presentations given by subcontractors and in-house teams at that meeting. The areas of subcontracted research under the HiPer project include Polycrystalline Thin Films and Multijunction Concentrators. The in-house teams in this initiative will focus on three areas: (1) High-Performance Thin-Film Team-leads the investigation of tandem structures and low-flux concentrators, (2) High-Efficiency Concepts and Concentrators Team-an expansion of an existing team that leads the development of high-flux concentrators, and (3) Thin-Film Process Integration Team-will perform fundamental process and characterization research, to resolve the complex issues of making thin-film multijunction devices.

Symko-Davis, M.

2001-11-07T23:59:59.000Z

336

Evaluation of the Energy Performance of Six High-Performance Buildings: Preprint  

DOE Green Energy (OSTI)

The energy performance of six high-performance buildings around the United States was monitored and evaluated by the NREL. The six buildings include the Visitor Center at Zion National Park, the NREL Thermal Test Facility, the Chesapeake Bay Foundation's Merrill Center, the BigHorn Home Improvement Center, the Cambria Office Building, and the Oberlin College Lewis Center.

Torcellini, P. A.; Pless, S.; Crawley, D. B.

2005-04-01T23:59:59.000Z

337

Commissioning High Performance Residences in Hot, Humid Climates  

E-Print Network (OSTI)

Since 2001, the authors have engaged several builders in the Gainesville, FL area to build over 500 high performance new energy efficient homes in multiple sub divisions. The builders keep building to increased levels of energy efficiency. Each home is individually designed, inspected, rated and commissioned for optimum performance. This paper summarizes the experiences to date with two production builders who have cost shared with the Building America program to deliver these outstanding results. Keys to success are commitment from the final decision maker; scopes of work for subcontractors with specific performance criteria; clear communication with the trades often accompanied by training and education activities; independent third party testing, commissioning and feedback to building; ongoing training of sales staff and model center displays and finally extensive marketing that educated the consumers about the benefits of high performance homes.

Fonorow, K.; Chandra, S.; McIlvaine, J.; Colon, C.

2007-01-01T23:59:59.000Z

338

High Performance Building Facade Solutions: PIER Final Project Report  

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

High Performance Building Facade Solutions: PIER Final Project Report High Performance Building Facade Solutions: PIER Final Project Report Title High Performance Building Facade Solutions: PIER Final Project Report Publication Type Report LBNL Report Number LBNL-4583E Year of Publication 2009 Authors Lee, Eleanor S., Stephen E. Selkowitz, Dennis L. DiBartolomeo, Joseph H. Klems, Robert D. Clear, Kyle Konis, Robert J. Hitchcock, Mehry Yazdanian, Robin Mitchell, and Maria Konstantoglou Date Published 12/2009 Abstract Building façades directly influence heating and cooling loads and indirectly influence lighting loads when daylighting is considered, and are therefore a major determinant of annual energy use and peak electric demand. façades also significantly influence occupant comfort and satisfaction, making the design optimization challenge more complex than many other building systems.

339

High Performance Incentive Program (Kansas) | Department of Energy  

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

You are here You are here Home » High Performance Incentive Program (Kansas) High Performance Incentive Program (Kansas) < Back Eligibility Agricultural Commercial Construction Developer Fuel Distributor Industrial Installer/Contractor Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Kansas Program Type Corporate Tax Incentive Provider Commerce High Performance Incentive Program provides tax incentives to eligible employers that pay above-average wages and have a strong commitment to skills development for their workers. A substantial investment tax credit for new capital investment in Kansas and a related sales tax exemption are the primary benefits of this program. HPIP offers employers four potential

340

Publications on High-Performance Schools | Department of Energy  

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

Schools Schools Publications on High-Performance Schools Learn about building high-performance schools that incorporate energy efficiency and renewable energy in publications from the U.S. Department of Energy (DOE) and the National Renewable Energy Laboratory (NREL). Building Energy-Efficient Schools in New Orleans: Lessons Learned This case study presents the lessons learned from incorporating energy efficiency in the rebuilding and renovating of New Orleans K-12 schools after Hurricanes Katrina and Rita. Building Energy-Efficient Schools in New Orleans: Lessons Learned Summary This summary presents the lessons learned at five schools in New Orleans that were rebuilt using energy efficiency and renewable energy technologies after Hurricanes Katrina and Rita. Energy Design Guidelines for High Performance Schools: Hot and Humid

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


341

'Catch and Suppress' Control of Instabilities in High Performance  

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

'Catch and Suppress' Control of Instabilities in High Performance 'Catch and Suppress' Control of Instabilities in High Performance Fusion Plasmas Fusion Energy Sciences (FES) FES Home About Research Facilities Science Highlights Benefits of FES Funding Opportunities Fusion Energy Sciences Advisory Committee (FESAC) News & Resources Contact Information Fusion Energy Sciences U.S. Department of Energy SC-24/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-4941 F: (301) 903-8584 E: sc.fes@science.doe.gov More Information » October 2012 'Catch and Suppress' Control of Instabilities in High Performance Fusion Plasmas Real time steering of microwave beams is used to suppress deleterious modes on DIII-D. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of General Atomics

342

Anne Arundel County - High Performance Dwelling Property Tax Credit |  

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

Anne Arundel County - High Performance Dwelling Property Tax Credit Anne Arundel County - High Performance Dwelling Property Tax Credit Anne Arundel County - High Performance Dwelling Property Tax Credit < Back Eligibility Residential Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Bioenergy Solar Lighting Windows, Doors, & Skylights Heating Buying & Making Electricity Water Water Heating Wind Maximum Rebate LEED or NGBS Silver: $1,000 LEED or NGBS Gold: $2,000 LEED Platinum or NGBS Emerald: $3,000 Program Info Start Date 07/01/2010 State Maryland Program Type Property Tax Incentive Rebate Amount LEED or NGBS Silver: 40% of property taxes for 5 years LEED or NGBS Gold: 60% of real property taxes for 5 years LEED Platinum or NGBS Emerald: 80% of real property taxes for 5 years

343

Software Tools for High Performance Computing: Survey and Recommendations  

E-Print Network (OSTI)

Applications programming for High Performance Computing is notoriously difficult. Although Parallel Programming is intrinsically complex, the principal reason why High Performance Computing is difficult is the lack of effective software tools. We believe that the lack of tools in turn is largely due to market forces rather than our inability to design and build such tools. Unfortunately, the poor availability and utilization of parallel tools hurts the entire supercomputing industry and the US High Performance Computing initiative which is focused on applications. A disproportionate amount of resources are being spent on faster hardware and architectures, while tools are being neglected. This paper introduces a taxonomy of tools, analyzes the major factors that contribute to this situation, and suggest ways that the imbalance could be redressed and the likely evolution of tools. 1 Received November 1994 Revised October 1995 Many attendees at the May 1993 Workshop on Parallel Compu...

Bill Appelbe Donna; Donna Bergmark (eds

1996-01-01T23:59:59.000Z

344

Publications on High-Performance Homes | Department of Energy  

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

Homes Homes Publications on High-Performance Homes Find publications from the U.S. Department of Energy (DOE) and the National Renewable Energy Laboratory (NREL) on incorporating energy efficiency and renewable energy into homes. Builders Challenge High Performance Builder Spotlight: Green Coast Enterprises, New Orleans, Louisiana (2-pager) This 2-page fact sheet highlights New Orleans homebuilder Green Coast Enterprises' and the Project Home Again community-scale residential building project. Builders Challenge High Performance Builder Spotlight: Green Coast Enterprises, New Orleans, Louisiana (4-pager) This four-page case study describes Green Coast Enterprises efforts to rebuild hurricane-ravaged New Orleans through Project Home Again. Builders Challenge Technology Information Packages - Hot-Humid Climate: New

345

Argonne TTRDC - Feature - High-Performance Computing Enables Huge Leap  

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

High-Performance Computing Enables Huge Leap Forward in Engine Development High-Performance Computing Enables Huge Leap Forward in Engine Development Engine Modeling and Simulation Team From left, Argonne researchers Raymond Bair, Doug Longman, Qingluan Xue, Marta Garcia, Shashi Aithal (seated) and Sibendu Som are part of a multidisciplinary team working to advance diesel and spark engine modeling and simulation tools into the high-performance computing realm. When we turn the key in our car's ignition, we usually don't think about the combustion process that takes place inside the engine that enables the car to go. We just know that it works. But, what actually takes place inside the engine? How do fuel injectors, turbulent mixing and combustion chemistry impact the fuel efficiency of a vehicle? And how do engine manufacturers improve these hidden-from-view

346

A DYNAMICALLY CONFIGURABLE ENVIRONMENT FOR HIGH Performance Computing  

E-Print Network (OSTI)

Current tools available for high performance computing require that all the computing nodes used in a parallel execution be known in advance: the execution environment must know where the different "chunks" of programs will be executed, and each computer involved in the execution must be properly configured. In this paper, we describe how the ) environment may be used to dynamically locate available computers to perform such computations and how these computers are dynamically configured.

Nabil Abdennadher; Gilbert Babin; Peter Kropf; Gilbert Babin ; Peter Kropf ; Pierre Kuonen

2000-01-01T23:59:59.000Z

347

Identifying Critical Pathways to High-Performance PV: Preprint  

DOE Green Energy (OSTI)

This conference paper describes the High-Performance Photovoltaic (HiPerf PV)Project was initiated by the U.S. Department of Energy to substantially increase the viability of photovoltaics (PV) for cost-competitive applications so that PV can contribute significantly to our energy supply and our environment in the 21st century. To accomplish this, the NCPV directs in-house and subcontracted research in high-performance polycrystalline thin-film and multijunction concentrator devices. Details of the subcontractor and in-house progress will be described toward identifying critical pathways of 25% polycrystalline thin-film tandem cells and developing multijunction concentrator modules to 33%.

Symko-Davies, M.; Noufi, R.; Kurtz, S.

2002-05-01T23:59:59.000Z

348

Key Elements of and Materials Performance Targets for Highly Insulating  

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

Key Elements of and Materials Performance Targets for Highly Insulating Key Elements of and Materials Performance Targets for Highly Insulating Window Frames Title Key Elements of and Materials Performance Targets for Highly Insulating Window Frames Publication Type Journal Article LBNL Report Number LBNL-5099E Year of Publication 2011 Authors Gustavsen, Arlid, Steinar Grynning, Dariush K. Arasteh, Bjørn Petter Jelle, and Howdy Goudey Journal Energy and Buildings Volume 43 Issue 10 Pagination 2583-2594 Date Published 10/2011 Keywords Fenestration, heat transfer modeling, thermal performance, thermal transmittance, u-factor, window frames Abstract The thermal performance of windows is important for energy efficient buildings. Windows typically account for about 30-50 percent of the transmission losses though the building envelope, even if their area fraction of the envelope is far less. The reason for this can be found by comparing the thermal transmittance (U-factor) of windows to the U-factor of their opaque counterparts (wall, roof and floor constructions). In well insulated buildings the U-factor of walls, roofs an floors can be between 0.1-0.2 W/(m2K). The best windows have U-values of about 0.7-1.0. It is therefore obvious that the U-factor of windows needs to be reduced, even though looking at the whole energy balance for windows (i.e. solar gains minus transmission losses) makes the picture more complex.

349

High-performance land surface modeling with a Linux cluster  

Science Conference Proceedings (OSTI)

The Land Information System (LIS) was developed at NASA to perform global land surface simulations at a resolution of 1-km or finer in real time. Such unprecedented scales and intensity pose many computational challenges. In this article, we demonstrate ... Keywords: Beowulf cluster, Distributed computing, High-resolution simulation, Hydrology modeling, Parallel computing, Peer-to-peer network

Y. Tian; C. D. Peters-Lidard; S. V. Kumar; J. Geiger; P. R. Houser; J. L. Eastman; P. Dirmeyer; B. Doty; J. Adams

2008-11-01T23:59:59.000Z

350

Turbine Technologies for High Performance Light Water Reactors  

SciTech Connect

Available turbine technologies for a High Performance Light Water Reactor (HPLWR) have been analysed. For the envisaged steam pressures and temperatures of 25 MPa and 500 deg. C, no further challenges in turbine technologies have to be expected. The results from a steam cycle analysis indicate a net plant efficiency of 43.9% for the current HPLWR design. (authors)

Bitterman, D. [Framatome ANP GmbH, P.O. Box 3220, 91050 Erlangen (Germany); Starflinger, J.; Schulenberg, T. [Forschungszentrum Karlsruhe, P.O. Box 3640, 76021 Karlsruhe (Germany)

2004-07-01T23:59:59.000Z

351

High-Performance Buildings Value, Messaging, Financial and Policy Mechanisms  

SciTech Connect

At the request of the Pacific Northwest National Laboratory, an in-depth analysis of the rapidly evolving state of real estate investments, high-performance building technology, and interest in efficiency was conducted by HaydenTanner, LLC, for the U.S. Department of Energy (DOE) Building Technologies Program. The analysis objectives were to evaluate the link between high-performance buildings and their market value to identify core messaging to motivate owners, investors, financiers, and others in the real estate sector to appropriately value and deploy high-performance strategies and technologies across new and existing buildings to summarize financial mechanisms that facilitate increased investment in these buildings. To meet these objectives, work consisted of a literature review of relevant writings, examination of existing and emergent financial and policy mechanisms, interviews with industry stakeholders, and an evaluation of the value implications through financial modeling. This report documents the analysis methodology and findings, conclusion and recommendations. Its intent is to support and inform the DOE Building Technologies Program on policy and program planning for the financing of high-performance new buildings and building retrofit projects.

McCabe, Molly

2011-02-22T23:59:59.000Z

352

Toward Codesign in High Performance Computing Systems - 06386705...  

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

s f o r t h i s w o r k . 7 . R E F E R E N C E S 1 J . A n g e t a l . High Performance Computing: From Grids and Clouds to Exascale, c h a p t e r E x a s c a l e C o m p u...

353

Biofuels' Time of Transition Achieving high performance in a world  

E-Print Network (OSTI)

Biofuels' Time of Transition Achieving high performance in a world of increasing fuel diversity #12;2 Table of contents #12;3 Introduction Up close: Highlights of Accenture's first biofuels study An evolving biofuels industry 1 Consumer influence Guest commentary on land-use change In focus: The food

Kammen, Daniel M.

354

High performance encryption cores for 3G networks  

Science Conference Proceedings (OSTI)

This paper presents two novel and high performance hardware architectures, implemented in FPGA technology, for the KASUMI block cipher; this algorithm lies at the core of the confidentiality and integrity algorithms defined for the Universal Mobile Telecommunication ... Keywords: 3G, FPGA, KASUMI, UMTS security architecture

Toms Balderas-Contreras; Ren Cumplido

2005-06-01T23:59:59.000Z

355

High-performance numerical optimization on multicore clusters  

Science Conference Proceedings (OSTI)

This paper presents a software infrastructure for high performance numerical optimization on clusters of multicore systems. At the core, a runtime system implements a programming and execution environment for irregular and adaptive task-based parallelism. ... Keywords: global optimization, message passing, numerical differentiation, task parallelism

Panagiotis E. Hadjidoukas; Constantinos Voglis; Vassilios V. Dimakopoulos; Isaac E. Lagaris; Dimitris G. Papageorgiou

2011-08-01T23:59:59.000Z

356

High Performance Commercial Building Systems Francis Rubinstein, LBNL  

E-Print Network (OSTI)

- Lighting, Envelope and Daylighting Project 2.1 - Lighting Controls Task 2.1.3 ­ Advanced Sensor Task 2High Performance Commercial Building Systems Francis Rubinstein, LBNL Pete Pettler, Vistron LLC fabrication of two key components of the IBECS (Integrated Building Environmental Communications System

357

High-Performance Computing and Visualization of Unsteady Turbulent Flows  

Science Conference Proceedings (OSTI)

The history of high-performance computing in turbulent flows is reviewed and their recent topics in industrial use are addressed. Special attention is paid to the validity of the method in flow visualization, and three-dimensional unsteady simulation ... Keywords: CAE, DNS, HPC, LES, turbulence

T. Kobayashi; M. Tsubokura; N. Oshima

2008-01-01T23:59:59.000Z

358

Validation of high performance pneumo-hydraulic shock absorbers  

Science Conference Proceedings (OSTI)

The paper discusses a theoretical and experimental approach to the validation of high performance shock absorbers, based on a flexible and innovative procedure. This type of components needs specific and unconventional tests, in order to detect the actual ... Keywords: oil-hydraulics, shock absorbers, validation, virtual instrumentation

Enrico Ravina

2006-02-01T23:59:59.000Z

359

High-Level Waste Corporate Board Performance Assessment Subcommittee  

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

Level Level Waste Corporate Board Performance Assessment Subcommittee John E. Marra, Ph.D. Associate Laboratory Director November 6, 2008 Richland, WA DOE-EM HLW Corporate Board Meeting Background - Performance Assessment Process Performance assessments are the fundamental risk assessment tool used by the DOE to evaluate and communicate the effectiveness and long-term impact of waste management and cleanup decisions. This includes demonstrations of compliance, NEPA analyses, and decisions about technologies and 2 analyses, and decisions about technologies and waste forms. Background - Process Perception EM-2 'Precepts' for Improved High-Level Waste Management (HLW Corporate Board Meeting - April 2008) Improved Performance Assessments (PA) The PA process is not consistently applied amongst the 3 The PA process is not consistently applied amongst the major HLW sites PA

360

NREL: Awards and Honors - Smart, High-Performance Polyphenylenesulfide  

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

Smart, High-Performance Polyphenylenesulfide (PPS) Coating System Smart, High-Performance Polyphenylenesulfide (PPS) Coating System Developers: Dr. Keith Gawlik, National Renewable Energy Laboratory; Dr. Toshifumi Sugama, Brookhaven National Laboratory; Edward Curran, Bob Curran & Sons Corporation; Edward Hallahan, Ticona Corporation. The PPS coating system is a giant step forward in the technology of coating carbon-steel surfaces for use in hostile, corrosive environments. It is a smart coating system that repairs itself. It has a high thermal conductivity. It protects surfaces from corrosion, oxidation, cracking, flaking, and fouling. And its use not only extends the life of carbon-steel tubing by 4 to 5 fold, but also cuts capital and maintenance costs for these tubes by as much as two orders of magnitude. The key to these characteristics lies in the PPS coatings' unique

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


361

NWChem Delivering High-Performance Computational Chemistry to Science  

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

NWChem NWChem Delivering High-Performance Computational Chemistry to Science SCientifiC innovation tHrougH integration www.nwchem-sw.org www.emsl.pnl.gov NWChem  High-Performance Computational Chemistry EMSL  Environmental Molecular Sciences Laboratory 2 3 NWChem software » Biomolecules, nanostructures, and solid state » From quantum to classical, and all combinations » Gaussian functions or plane-waves » Scaling from one to thousands of processors » Properties and relativity » Open source NWChem Introduction NWChem is cutting-edge software that offers an extensive array of highly scalable, parallel computational chemistry methods needed to address a wide range of large, challenging scientific questions. As one of the U.S. Department of Energy's premier computational chemistry tools, NWChem is

362

Multijunction Photovoltaic Technologies for High-Performance Concentrators: Preprint  

DOE Green Energy (OSTI)

Multijunction solar cells provide high-performance technology pathways leading to potentially low-cost electricity generated from concentrated sunlight. The National Center for Photovoltaics at the National Renewable Energy Laboratory has funded different III-V multijunction solar cell technologies and various solar concentration approaches. Within this group of projects, III-V solar cell efficiencies of 41% are close at hand and will likely be reported in these conference proceedings. Companies with well-developed solar concentrator structures foresee installed system costs of $3/watt--half of today's costs--within the next 2 to 5 years as these high-efficiency photovoltaic technologies are incorporated into their concentrator photovoltaic systems. These technology improvements are timely as new large-scale multi-megawatt markets, appropriate for high performance PV concentrators, open around the world.

McConnell, R.; Symko-Davies, M.

2006-05-01T23:59:59.000Z

363

Highlighting High Performance: Blackstone Valley Regional Vocational Technical High School; Upton, Massachusetts  

DOE Green Energy (OSTI)

This brochure describes the key high-performance building features of the Blackstone Valley High School. The brochure was paid for by the Massachusetts Technology Collaborative as part of their Green Schools Initiative. High-performance features described are daylighting and energy-efficient lighting, indoor air quality, solar energy, building envelope, heating and cooling systems, and water conservation. Energy cost savings are also discussed.

Not Available

2006-10-01T23:59:59.000Z

364

High performance capacitors using nano-structure multilayer materials fabrication  

DOE Patents (OSTI)

A high performance capacitor fabricated from nano-structure multilayer materials, such as by controlled, reactive sputtering, and having very high energy-density, high specific energy and high voltage breakdown. The multilayer capacitors, for example, may be fabricated in a "notepad" configuration composed of 200-300 alternating layers of conductive and dielectric materials so as to have a thickness of 1 mm, width of 200 mm, and length of 300 mm, with terminals at each end of the layers suitable for brazing, thereby guaranteeing low contact resistance and high durability. The "notepad" capacitors may be stacked in single or multiple rows (series-parallel banks) to increase the voltage and energy density.

Barbee, Jr., Troy W. (Palo Alto, CA); Johnson, Gary W. (Livermore, CA); O' Brien, Dennis W. (Livermore, CA)

1995-01-01T23:59:59.000Z

365

High performance capacitors using nano-structure multilayer materials fabrication  

DOE Patents (OSTI)

A high performance capacitor fabricated from nano-structure multilayer materials, such as by controlled, reactive sputtering, and having very high energy-density, high specific energy and high voltage breakdown. The multilayer capacitors, for example, may be fabricated in a "notepad" configuration composed of 200-300 alternating layers of conductive and dielectric materials so as to have a thickness of 1 mm, width of 200 mm, and length of 300 mm, with terminals at each end of the layers suitable for brazing, thereby guaranteeing low contact resistance and high durability. The "notepad" capacitors may be stacked in single or multiple rows (series-parallel banks) to increase the voltage and energy density.

Barbee, Jr., Troy W. (Palo Alto, CA); Johnson, Gary W. (Livermore, CA); O' Brien, Dennis W. (Livermore, CA)

1996-01-01T23:59:59.000Z

366

High performance capacitors using nano-structure multilayer materials fabrication  

DOE Patents (OSTI)

A high performance capacitor is fabricated from nano-structure multilayer materials, such as by controlled, reactive sputtering, and having very high energy-density, high specific energy and high voltage breakdown. The multilayer capacitors, for example, may be fabricated in a ``notepad`` configuration composed of 200-300 alternating layers of conductive and dielectric materials so as to have a thickness of 1 mm, width of 200 mm, and length of 300 mm, with terminals at each end of the layers suitable for brazing, thereby guaranteeing low contact resistance and high durability. The notepad capacitors may be stacked in single or multiple rows (series-parallel banks) to increase the voltage and energy density. 5 figs.

Barbee, T.W. Jr.; Johnson, G.W.; O`Brien, D.W.

1995-05-09T23:59:59.000Z

367

High performance capacitors using nano-structure multilayer materials fabrication  

DOE Patents (OSTI)

A high performance capacitor is described which is fabricated from nano-structure multilayer materials, such as by controlled, reactive sputtering, and having very high energy-density, high specific energy and high voltage breakdown. The multilayer capacitors, for example, may be fabricated in a ``notepad`` configuration composed of 200--300 alternating layers of conductive and dielectric materials so as to have a thickness of 1 mm, width of 200 mm, and length of 300 mm, with terminals at each end of the layers suitable for brazing, thereby guaranteeing low contact resistance and high durability. The ``notepad`` capacitors may be stacked in single or multiple rows (series-parallel banks) to increase the voltage and energy density. 5 figs.

Barbee, T.W. Jr.; Johnson, G.W.; O`Brien, D.W.

1996-01-23T23:59:59.000Z

368

Challenges for high-performance networking for exascale computing.  

Science Conference Proceedings (OSTI)

Achieving the next three orders of magnitude performance increase to move from petascale to exascale computing will require a significant advancements in several fundamental areas. Recent studies have outlined many of the challenges in hardware and software that will be needed. In this paper, we examine these challenges with respect to high-performance networking. We describe the repercussions of anticipated changes to computing and networking hardware and discuss the impact that alternative parallel programming models will have on the network software stack. We also present some ideas on possible approaches that address some of these challenges.

Barrett, Brian W.; Hemmert, K. Scott; Underwood, Keith Douglas (Intel Corporation, Hillsboro, OR); Brightwell, Ronald Brian

2010-05-01T23:59:59.000Z

369

High-Performance Beam Simulator for the LANSCE Linac  

SciTech Connect

A high performance multiparticle tracking simulator is currently under development at Los Alamos. The heart of the simulator is based upon the beam dynamics simulation algorithms of the PARMILA code, but implemented in C++ on Graphics Processing Unit (GPU) hardware using NVIDIA's CUDA platform. Linac operating set points are provided to the simulator via the EPICS control system so that changes of the real time linac parameters are tracked and the simulation results updated automatically. This simulator will provide valuable insight into the beam dynamics along a linac in pseudo real-time, especially where direct measurements of the beam properties do not exist. Details regarding the approach, benefits and performance are presented.

Pang, Xiaoying [Los Alamos National Laboratory; Rybarcyk, Lawrence J. [Los Alamos National Laboratory; Baily, Scott A. [Los Alamos National Laboratory

2012-05-14T23:59:59.000Z

370

Coal-fired high performance power generating system. Final report  

SciTech Connect

As a result of the investigations carried out during Phase 1 of the Engineering Development of Coal-Fired High-Performance Power Generation Systems (Combustion 2000), the UTRC-led Combustion 2000 Team is recommending the development of an advanced high performance power generation system (HIPPS) whose high efficiency and minimal pollutant emissions will enable the US to use its abundant coal resources to satisfy current and future demand for electric power. The high efficiency of the power plant, which is the key to minimizing the environmental impact of coal, can only be achieved using a modern gas turbine system. Minimization of emissions can be achieved by combustor design, and advanced air pollution control devices. The commercial plant design described herein is a combined cycle using either a frame-type gas turbine or an intercooled aeroderivative with clean air as the working fluid. The air is heated by a coal-fired high temperature advanced furnace (HITAF). The best performance from the cycle is achieved by using a modern aeroderivative gas turbine, such as the intercooled FT4000. A simplified schematic is shown. In the UTRC HIPPS, the conversion efficiency for the heavy frame gas turbine version will be 47.4% (HHV) compared to the approximately 35% that is achieved in conventional coal-fired plants. This cycle is based on a gas turbine operating at turbine inlet temperatures approaching 2,500 F. Using an aeroderivative type gas turbine, efficiencies of over 49% could be realized in advanced cycle configuration (Humid Air Turbine, or HAT). Performance of these power plants is given in a table.

1995-08-31T23:59:59.000Z

371

Graph 500 Performance on a Distributed-Memory Cluster REU Site: Interdisciplinary Program in High Performance Computing  

E-Print Network (OSTI)

traditional performance benchmarks for high- performance computers measure the speed of arithmetic operations benchmark is intended to rank high-performance computers based on speed of memory retrieval-memory cluster tara in the UMBC High Performance Computing Facility (www.umbc.edu/hpcf). The cluster tara has 82

Gobbert, Matthias K.

372

MSIM 795/895:MSIM 795/895: HIGH PERFORMANCE COMPUTING AND SIMULATIONHIGH PERFORMANCE COMPUTING AND SIMULATION  

E-Print Network (OSTI)

MSIM 795/895:MSIM 795/895: HIGH PERFORMANCE COMPUTING AND SIMULATIONHIGH PERFORMANCE COMPUTING://eng.odu.edu/msve COURSE DESCRIPTION Introduction to modern high performance computing platforms including top their research area. Project presentations are required. COURSE TOPICS 1. Overview of high-performance computing

373

Thermal Performance Analysis of a High-Mass Residential Building  

DOE Green Energy (OSTI)

Minimizing energy consumption in residential buildings using passive solar strategies almost always calls for the efficient use of massive building materials combined with solar gain control and adequate insulation. Using computerized simulation tools to understand the interactions among all the elements facilitates designing low-energy houses. Finally, the design team must feel confident that these tools are providing realistic results. The design team for the residential building described in this paper relied on computerized design tools to determine building envelope features that would maximize the energy performance [1]. Orientation, overhang dimensions, insulation amounts, window characteristics and other strategies were analyzed to optimize performance in the Pueblo, Colorado, climate. After construction, the actual performance of the house was monitored using both short-term and long-term monitoring approaches to verify the simulation results and document performance. Calibrated computer simulations showed that this house consumes 56% less energy than would a similar theoretical house constructed to meet the minimum residential energy code requirements. This paper discusses this high-mass house and compares the expected energy performance, based on the computer simulations, versus actual energy performance.

Smith, M.W.; Torcellini, P.A., Hayter, S.J.; Judkoff, R.

2001-01-30T23:59:59.000Z

374

High performance solar desiccant cooling system: performance evaluations and research recommendations  

DOE Green Energy (OSTI)

This report presents an assessment of the current status of solar desiccant cooling and makes recommendations for continued research to develop high performance systems competitive with conventional cooling systems. Solid desiccant, liquid desiccant, and hybrid systems combining desiccant dehumidifiers with vapor compressor units are considered. Currently, all desiccant systems fall somewhat short of being competitive with conventional systems. Hybrid systems appear to have the greatest potential in the short term. Solid systems are close to meeting performance goals. Development of high performance solid desiccant dehumidifiers based on parallel passage designs should be pursued. Liquid system collector/generators and efficient absorbers should receive attention. Model development is also indicated. Continued development by hybrid systems is directly tied to the above work.

Schlepp, D.R.; Schultz, K.J.

1984-09-01T23:59:59.000Z

375

Performance of High-Performance Glazing in IECC Compliant Building Simulation Model  

E-Print Network (OSTI)

Current specifications for glazing in the 2000 IECC code adopted by Texas imply the use of low-E glazing. However, the trends in the development of highperformance glazing technology indicate that windows have the potential to provide net positive energy benefits making it inevitable for future versions of the IECC to incorporate high-performance glazing. This study examines the performance of a number of such glazing options when incorporated in the IECC compliant residential building. The results show that in some cases the resultant energy consumption obtained from installing high-performance windows was lower than the energy consumption of a base-case windowless house (Approximately 6% total energy savings, and 40% heating).

Mukhopadhyay, J.; Haberl, J. S.

2006-08-01T23:59:59.000Z

376

June 8, 2007 Advanced Fault Tolerance Solutions for High Performance Computing  

E-Print Network (OSTI)

June 8, 2007 Advanced Fault Tolerance Solutions for High Performance Computing Workshop on Trends Tolerance Solutions for High Performance Computing Christian Engelmann Oak Ridge National Laboratory, Oak for High Performance Computing Workshop on Trends, Technologies and Collaborative Opportunities in High

Engelmann, Christian

377

High Performance Flow Simulations on Graphics Processing Units  

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

High Performance Flow Simulations on Graphics Processing Units High Performance Flow Simulations on Graphics Processing Units Speaker(s): Wangda Zuo Date: June 17, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Michael Wetter Building design and operation often requires real-time or faster-than-real-time simulations for detailed information on air distributions. However, none of the current flow simulation techniques can satisfy this requirement. To solve this problem, a Fast Fluid Dynamics (FFD) model has been developed. The FFD can solve Navier-Stokes equations at a speed of 50 times faster than Computational Fluid Dynamics (CFD). In addition, the computing speed of the FFD program has been further enhanced up to 30 times by executing in parallel on a Graphics Processing Unit (GPU) instead of a Central Processing Unit (CPU). As a whole, the FFD on a GPU

378

Los Alamos Lab: High-Performance Computing: Roadrunner  

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

High-Performance Computing, HPC High-Performance Computing, HPC Home HPC-1 HPC-2 HPC-3 HPC-5 Contacts HPC Division Leader Gary Grider (acting) Deputy Division Leader Randal Rheinheimer (acting) Chief of Staf Angelina Trujillo HPC Division Office MS B260 Los Alamos, NM 87545 (505) 667-6164 Header Luna LUNA Joins LANL Supercomputers The Appro Xtreme-X(tm) Supercomputer was selected as part of the second Tri-Lab Linux Capacity Cluster (TLCC2) program to add 6 petaFlop/s to the computer power of the Department of Energy National Nuclear Security Administration (NNSA). The Los Alamos computer is named Luna (moon) in keeping with its predecessor Cielo (sky), honoring New Mexico's Spanish heritage. These supercomputers are in use by the three national laboratories in NNSA's Advanced Simulation and Computing (ASC) program: Lawrence Livermore (LLNL), Los Alamos (LANL) and Sandia (SNL).

379

High Performance Building Façade Solutions  

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

Sponsors Sponsors High Performance Building Façade Solutions High Performance Building Façade Solutions Buildings Technology Department, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory Sponsors California Energy Commission Public Interest Energy Research (PIER) Buildings End-Use Energy Efficiency Program Michael Seaman, California Energy Commission Contract Manager http://www.energy.ca.gov/research/index.html U.S. Department of Energy Assistant Secretary for Energy Efficiency and Renewable Energy Office of Building Technology, State and Community Programs Office of Building Research and Standards Marc LaFrance, Program Manager http://www.eere.energy.gov/buildings/ In-kind Cost-share Advanced Glazings Ltd. Hunter Douglas Köster Lichplanung

380

High Performance Computing for Wavelet and Wavelet Packet Image Coding  

E-Print Network (OSTI)

The use of high performance computers for wavelet and wavelet packet based image coding is discussed. After a short description of wavelet and wavelet packet methods the existing literature concerning vector, parallel and VLSI wavelet transforms is reviewed. In the following an algorithm for wavelet packet best basis selection on moderate parallel MIMD architectures is introduced and an implementation on a workstation cluster is presented. DV4Z-2/Rel 1.0/October 25 1994 1 CONTENTS PACT Contents 1 Introduction 3 2 Image coding using wavelet and wavelet packet techniques 3 2.1 Wavelets and Multiresolution analysis : : : : : : : : : : : : : : : : : : : : : : 3 2.2 Wavelet packets : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 5 2.3 Best basis selection : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 6 2.4 Image coding : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 7 3 High performance computing and wavelet techn...

Andreas Uhl

1994-01-01T23:59:59.000Z

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


381

Performance and safety parameters for the high flux isotope reactor  

Science Conference Proceedings (OSTI)

A Monte Carlo depletion model for the High Flux Isotope Reactor (HFIR) Cycle 400 and its use in calculating parameters of relevance to the reactor performance and safety during the reactor cycle are presented in this paper. This depletion model was developed to serve as a reference for the design of a low-enriched uranium (LEU) fuel for an ongoing study to convert HFIR from high-enriched uranium (HEU) to LEU fuel; both HEU and LEU depletion models use the same methodology and ENDF/B-VII nuclear data as discussed in this paper. The calculated HFIR Cycle 400 parameters, which are compared with measurement data from critical experiments performed at HFIR, data included in the HFIR Safety Analysis Report (SAR), or data reported by previous calculations, provide a basis for verification or updating of the corresponding SAR data. (authors)

Ilas, G. [Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831-6172 (United States); Primm III, T. [Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831-6172 (United States); Primm Consulting, LLC, 945 Laurel Hill Road, Knoxville, TN 37923 (United States)

2012-07-01T23:59:59.000Z

382

Micro-polarimeter for high performance liquid chromatography  

DOE Patents (OSTI)

A micro-polarimeter interfaced with a system for high performance liquid chromatography, for quantitatively analyzing micro and trace amounts of optically active organic molecules, particularly carbohydrates. A flow cell with a narrow bore is connected to a high performance liquid chromatography system. Thin, low birefringence cell windows cover opposite ends of the bore. A focused and polarized laser beam is directed along the longitudinal axis of the bore as an eluent containing the organic molecules is pumped through the cell. The beam is modulated by air gap Faraday rotators for phase sensitive detection to enhance the signal to noise ratio. An analyzer records the beams's direction of polarization after it passes through the cell. Calibration of the liquid chromatography system allows determination of the quantity of organic molecules present from a determination of the degree to which the polarized beam is rotated when it passes through the eluent.

Yeung, Edward E. (Ames, IA); Steenhoek, Larry E. (Wilmington, DE); Woodruff, Steven D. (Morgantown, WV); Kuo, Jeng-Chung (Skokie, IL)

1985-01-01T23:59:59.000Z

383

High Performance Computing at the Oak Ridge Leadership Computing Facility  

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

High Performance Computing at High Performance Computing at the Oak Ridge Leadership Computing Facility Go to Menu Page 2 Outline * Our Mission * Computer Systems: Present, Past, Future * Challenges Along the Way * Resources for Users Go to Menu Page 3 Our Mission Go to Menu Page 4 * World's most powerful computing facility * Nation's largest concentration of open source materials research * $1.3B budget * 4,250 employees * 3,900 research guests annually * $350 million invested in modernization * Nation's most diverse energy portfolio * The $1.4B Spallation Neutron Source in operation * Managing the billion-dollar U.S. ITER project ORNL is the U.S. Department of Energy's largest science and energy laboratory Go to Menu Page 5 Computing Complex @ ORNL World's most powerful computer for open science

384

Performance and Safety Parameters for the High Flux Isotope Reactor  

SciTech Connect

A Monte Carlo depletion model for the High Flux Isotope Reactor (HFIR) Cycle 400 and its use in calculating parameters of relevance to the reactor performance and safety during the reactor cycle are presented in this paper. This depletion model was developed to serve as a reference for the design of a low-enriched uranium (LEU) fuel for an ongoing study to convert HFIR from high-enriched uranium (HEU) to LEU fuel; both HEU and LEU depletion models use the same methodology and ENDV/B-VII nuclear data as discussed in this paper. The calculated HFIR Cycle 400 parameters, which are compared when available with measurement data from critical experiments performed at HFIR, data included in the HFIR Safety Analysis Report (SAR), or data reported by previous calculations, provide a basis for verification or updating of the corresponding SAR data.

Ilas, Germina [ORNL; Primm, Trent [Primm Consulting, LLC

2012-01-01T23:59:59.000Z

385

High Performance Computing: Needs and Application for Thailand  

E-Print Network (OSTI)

This paper presents the overview of High Performance Computing, the required components, and its applications. Current state of the HPC researches and facilities in Thailand has also been reviewed along with the HPC related research conducted in Kasetsart University. In summary, HPC is a technology that has an impact on Thailand competitiveness. Yet, much more qualifed man-power and broader recognition of the field are desparately needed.

Yuen Poovarawan Putchong; Putchong Uthayopas

1997-01-01T23:59:59.000Z

386

High Performance Visualization using Query-Driven Visualizationand Analytics  

Science Conference Proceedings (OSTI)

Query-driven visualization and analytics is a unique approach for high-performance visualization that offers new capabilities for knowledge discovery and hypothesis testing. The new capabilities akin to finding needles in haystacks are the result of combining technologies from the fields of scientific visualization and scientific data management. This approach is crucial for rapid data analysis and visualization in the petascale regime. This article describes how query-driven visualization is applied to a hero-sized network traffic analysis problem.

Bethel, E. Wes; Campbell, Scott; Dart, Eli; Shalf, John; Stockinger, Kurt; Wu, Kesheng

2006-06-15T23:59:59.000Z

387

The role of interpreters in high performance computing  

SciTech Connect

Compiled code is fast, interpreted code is slow. There is not much we can do about it, and it's the reason why interpreters use in high performance computing is usually restricted to job submission. We show where interpreters make sense even in the context of analysis code, and what aspects have to be taken into account to make this combination a success.

Naumann, Axel; /CERN; Canal, Philippe; /Fermilab

2008-01-01T23:59:59.000Z

388

High Performance Bulk Data Brian Tierney and Joe Metzger, ESnet  

E-Print Network (OSTI)

High Performance Bulk Data Transfer Brian Tierney and Joe Metzger, ESnet Joint Techs, Columbus OH://mitas.csail.mit.edu/papers/ Bauer_Clark_Lehr_Broadband_Spee d_Measurements.pdf 7/12/10 ESnet Template Examples 17 Figure 11: Scatter memory in power of two sizes, so you may even need 16/1.5 = 11 times more buffer space! 7/12/10 ESnet

389

High-performance CFL downlights: The best and the brightest  

SciTech Connect

Downlight fixtures -- often referred to as ``recessed cans`` -- are among the most common lighting fixtures in commercial and residential settings. As such, they represent one of the most promising targets for improving lighting energy efficiency. The authors estimate that downlight fixtures account for more than one-fifth of the 2.8 billion incandescent lighting sockets in the US, and represent about 8 percent of total direct lighting energy use. Over 30 million new fixtures of this type are sold each year in the US. With existing and foreseeable technology, nearly two-thirds of the incandescent downlights in the US are candidates for retrofit or replacement with compact fluorescent lamps (CFLs) or fixtures. The remaining one-third, however, are unlikely to ever be replaceable with CFL technology because of constraints on light output, lighting quality, size, and cost-effectiveness of CFL alternatives. High performance downlight systems using compact fluorescent lamps and incorporating advanced optical, thermal, and ballast designs use up to 75 percent less energy than conventional incandescent downlight fixtures. Many CFL downlight fixtures, however, perform poorly. In this report, the authors explore ways in which various elements of fixture design influence performance. They also describe exemplary elements of high-performance designs, and evaluate several emerging or experimental technologies that promise to further improve efficiency.

Sardinsky, R.; Hawthorne, S.; Newcomb, J.

1993-12-31T23:59:59.000Z

390

ROMIO: A High-Performance, Portable MPI-IO Implementation  

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

ROMIO: A High-Performance, Portable MPI-IO Implementation ROMIO: A High-Performance, Portable MPI-IO Implementation Overview Note: The version of ROMIO described on this page is an old one. We haven't released newer versions of ROMIO as independent packages for a while; they were included as part of MPICH2 and MPICH-1. You can get the latest version of ROMIO when you download MPICH2 or MPICH-1. ROMIO is a high-performance, portable implementation of MPI-IO, the I/O chapter in MPI-2. Version 1.2.5.1 of ROMIO (January 2003) is freely available. The new features in this version are listed here. ROMIO runs on at least the following machines: IBM SP; Intel Paragon; HP Exemplar; SGI Origin2000; Cray T3E; NEC SX-4; other symmetric multiprocessors from HP, SGI, DEC, Sun, and IBM; and networks of workstations (Sun, SGI, HP, IBM, DEC, Linux, and FreeBSD). Supported file

391

Microstructure, Processing, Performance Relationships for High Temperature Coatings  

SciTech Connect

This work evaluates the suitability of iron aluminide coatings for use in high temperature fossil fuel combustion environments, such as boiler applications. The coatings are applied using High Velocity Oxy-Fuel (HVOF) thermal spray techniques. Iron aluminide coatings, with the nominal composition of Fe3Al, were applied to various high temperature structural materials (316 Stainless Steel, 9Cr-1Mo steel and Inconel 600) that typically lack inherent resistance to environmental degradation found in fossil fuel combustion atmospheres. Coating/substrate combinations were subjected to thermal cycling to evaluate the effect of HVOF parameters, coating thickness, substrate material and substrate surface roughness on the resistance to coating delamination and cracking. It was found that substrate surface roughness had a profound influence on the performance of a given substrate/coating system and that surface preparation techniques will need to be tailored to the specific substrate material. Also, higher particle velocity during HVOF thermal spray deposition of the iron aluminide coatings tended to result in better-performing coating/substrate systems with less delamination at the coating/substrate interface. Some combinations of HVOF parameters, coating thickness and substrate materials were found to perform extremely well even at temperatures up to 900oC. However, in some cases, substantial reactions at the interface were observed.

Thomas M. Lillo

2011-04-01T23:59:59.000Z

392

A high-level approach to synthesis of high-performance codes for quantum chemistry  

Science Conference Proceedings (OSTI)

This paper discusses an approach to the synthesis of high-performance parallel programs for a class of computations encountered in quantum chemistry and physics. These computations are expressible as a set of tensor contractions and arise in electronic ...

Gerald Baumgartner; David E. Bernholdt; Daniel Cociorva; Robert Harrison; So Hirata; Chi-Chung Lam; Marcel Nooijen; Russell Pitzer; J. Ramanujam; P. Sadayappan

2002-11-01T23:59:59.000Z

393

Energy Star Helps Manufacturers To Achieve High Energy Performance  

E-Print Network (OSTI)

From personal electronic devices to homes and office buildings, ENERGY STAR is a recognized symbol of high quality energy performance which enables consumers, home buyers, and businesses to make informed energy decisions. Now, the U.S. Environmental Protection Agency, within the construct of ENERGY STAR, is extending the benefits to manufacturers in new and meaningful ways. Through the development of tools and technical resources specifically targeting manufacturing companies, ENERGY STAR seeks to provide a means for these businesses to understand and achieve excellence in energy performance by reinforcing the link between energy, financial, and environmental performance. Discussed are the enhanced programmatic offerings as well as two new tools under development that will illustrate the impact of energy consumption on financial performance. The first tool will permit an assessment of energy performance, or benchmark it, at a plant level normalizing for such variables as product type, annual plant hours, plant capacity, annual product value, number of employees, and location. Use of this tool and the information it provides as a means to assess, track and provide targets for plant energy performance is examined. The second tool seeks to elevate the consideration of energy use to an executive level within an organization by calculating financial energy indices specific to individual companies and industrial sectors. These indices relate a business' energy use to such factors as net operating income, value of sales, net income, and so forth. Corporate executives, Wall Street analysts, and energy managers are intended to be the primary users of these ratios. Programmatic improvements to ENERGY STAR include greater networking among participants in the partnership and more opportunities for recognition of their achievements. With the new tools, resources, and program enhancements, it is believed that manufacturers will be equipped with valuable and credible information from which more informed and progressive energy performance decisions can be made. Further, these businesses will be doing their part to demonstrate that protection of the environment is good for business.

Dutrow, E.; Hicks, T.

2001-05-01T23:59:59.000Z

394

Enhanced High Temperature Performance of NOx Reduction Catalyst Materials  

Science Conference Proceedings (OSTI)

Two primary NOx after-treatment technologies have been recognized as the most promising approaches for meeting stringent NOx emission standards for diesel vehicles within the Environmental Protection Agencys (EPAs) 2007/2010 mandated limits, NOx Storage Reduction (NSR) and NH3 selective catalytic reduction (SCR); both are, in fact being commercialized for this application. However, in looking forward to 2015 and beyond with expected more stringent regulations, the continued viability of the NSR technology for controlling NOx emissions from lean-burn engines such as diesels will require at least two specific, significant and inter-related improvements. First, it is important to reduce system costs by, for example, minimizing the precious metal content while maintaining, even improving, performance and long-term stability. A second critical need for future NSR systems, as well as for NH3 SCR, will be significantly improved higher and lower temperature performance and stability. Furthermore, these critically needed improvements will contribute significantly to minimizing the impacts to fuel economy of incorporating these after-treatment technologies on lean-burn vehicles. To meet these objectives will require, at a minimum an improved scientific understanding of the following things: i) the various roles for the precious and coinage metals used in these catalysts; ii) the mechanisms for these various roles; iii) the effects of high temperatures on the active metal performance in their various roles; iv) mechanisms for higher temperature NOx storage performance for modified and/or alternative storage materials; v) the interactions between the precious metals and the storage materials in both optimum NOx storage performance and long term stability; vi) the sulfur adsorption and regeneration mechanisms for NOx reduction materials; vii) materials degradation mechanisms in CHA-based NH3 SCR catalysts. The objective of this CRADA project between PNNL and Cummins, Inc. is to develop a fundamental understanding of the above-listed issues. Model catalysts that are based on literature formulations are the focus of the work being carried out at PNNL. In addition, the performance and stability of more realistic high temperature NSR catalysts, supplied by JM, are being studied in order to provide baseline data for the model catalysts that are, again, based on formulations described in the open literature. For this short summary, we will primarily highlight representative results from our recent studies of the stability of candidate high temperature NSR materials.

Gao, Feng; Kim, Do Heui; Luo, Jinyong; Muntean, George G.; Peden, Charles HF; Howden, Ken; Currier, Neal; Kamasamudram, Krishna; Kumar, Ashok; Li, Junhui; Stafford, Randy; Yezerets, Aleksey; Castagnola, Mario; Chen, Hai Ying; Hess, Howard ..

2012-12-31T23:59:59.000Z

395

A scalable high-performance I/O system  

SciTech Connect

A significant weakness of many existing parallel supercomputers is their lack of high-performance parallel I/O. This weakness has prevented, in many cases, the full exploitation of the true potential of MPP systems. As part of a joint project with IBM, we have designed a parallel I/O system for an IBM SP system that can provide sustained I/O rates of greater than 160 MB/s from collections of compute nodes to archival disk and peak transfer rates that should exceed 400 MB/s from compute nodes to I/O servers. This testbed system is being used for a number of projects, first it will provide a high-performance experimental I/O system for traditional computational science applications, second it will b used as an I/O software and development environment for new parallel I/O algorithms and operating systems support, and third it will be used as the foundation for a number of new projects designed to develop enabling technology for the National Information Infrastructure. This report describes the system under development at Argonne National Laboratory, provides some preliminary performance results, and outlines future experiments and directions.

Henderson, M.; Nickless, B.; Stevens, R.

1994-05-01T23:59:59.000Z

396

A directory service for configuring high-performance distributed computations  

Science Conference Proceedings (OSTI)

High-performance execution in distributed computing environments often requires careful selection and configuration not only of computers, networks, and other resources but also of the protocols and algorithms used by applications. Selection and configuration in turn require access to accurate, up-to-date information on the structure and state of available resources. Unfortunately, no standard mechanism exists for organizing or accessing such information. Consequently, different tools and applications adopt ad hoc mechanisms, or they compromise their portability and performance by using default configurations. We propose a Metacomputing Directory Service that provides efficient and scalable access to diverse, dynamic, and distributed information about resource structure and state. We define an extensible data model to represent required information and present a scalable, high-performance, distributed implementation. The data representation and application programming interface are adopted from the Lightweight Directory Access Protocol; the data model and implementation are new. We use the Globus distributed computing toolkit to illustrate how this directory service enables the development of more flexible and efficient distributed computing services and applications.

Fitzgerald, S.; Kesselman, C. [Univ. of Southern California, Marina del Rey, CA (United States). Information Sciences Institute; Foster, I. [Argonne National Lab., IL (United States)] [and others

1997-08-01T23:59:59.000Z

397

Demonstration and Performance Monitoring of Foundation Heat Exchangers in Low Load, High Performance Research Homes  

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

Demonstration and Performance Monitoring of Foundation Heat Exchangers (FHX) in Low Load, High Performance Research Homes Piljae Im, Ph.D. Oak Ridge National Laboratory Building America Technical Update Meeting April 29 - 30, Denver, Colorado ACKNOWLEDGEMENT * This project was sponsored by the Building Technologies Office of the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy and the Tennessee Valley Authority (TVA). Managed by UT-Battelle for the U.S. Department of Energy 2 PRESENTATION OVERVIEW * INTRODUCTION * FIELD TEST OF THE FOUNDATION HEAT EXCHANGER (FHX) CONCEPT * FOUNDATION HEAT EXCHANGER PERFORMANCE MEASUREMENTS * ADDITIONAL FINDINGS AND COST COMPARISON * SUMMARY Managed by UT-Battelle for the U.S. Department of Energy

398

High-performance high-resolution semi-Lagrangian tracer transport on a sphere  

Science Conference Proceedings (OSTI)

Current climate models have a limited ability to increase spatial resolution because numerical stability requires the time step to decrease. We describe a semi-Lagrangian method for tracer transport that is stable for arbitrary Courant numbers, and we ... Keywords: Cubed sphere, High resolution, High-performance computing, Semi-Lagrangian, Spherical geometry, Tracer transport

J. B. White, III; J. J. Dongarra

2011-07-01T23:59:59.000Z

399

Process Performance of Optima XEx Single Wafer High Energy Implanter  

SciTech Connect

To meet the process requirements for well formation in future CMOS memory production, high energy implanters require more robust angle, dose, and energy control while maintaining high productivity. The Optima XEx high energy implanter meets these requirements by integrating a traditional LINAC beamline with a robust single wafer handling system. To achieve beam angle control, Optima XEx can control both the horizontal and vertical beam angles to within 0.1 degrees using advanced beam angle measurement and correction. Accurate energy calibration and energy trim functions accelerate process matching by eliminating energy calibration errors. The large volume process chamber and UDC (upstream dose control) using faraday cups outside of the process chamber precisely control implant dose regardless of any chamber pressure increase due to PR (photoresist) outgassing. An optimized RF LINAC accelerator improves reliability and enables singly charged phosphorus and boron energies up to 1200 keV and 1500 keV respectively with higher beam currents. A new single wafer endstation combined with increased beam performance leads to overall increased productivity. We report on the advanced performance of Optima XEx observed during tool installation and volume production at an advanced memory fab.

Kim, J. H.; Yoon, Jongyoon; Kondratenko, S.; David, J.; Rubin, L. M. [Axcelis Technologies, 108 Cherry Hill Drive, Beverly, MA 01950 (United States); Jang, I. S.; Cha, J. C.; Joo, Y. H.; Lee, A. B.; Jin, S. W. [Hynix Semiconductor Inc., San 136-1 Ami, Bubal, Ichon, Kyoungki-do, 467-701 (Korea, Republic of)

2011-01-07T23:59:59.000Z

400

The NetLogger Methodology for High Performance Distributed Systems Performance Analysis  

SciTech Connect

The authors describe a methodology that enables the real-time diagnosis of performance problems in complex high-performance distributed systems. The methodology includes tools for generating precision event logs that can be used to provide detailed end-to-end application and system level monitoring; a Java agent-based system for managing the large amount of logging data; and tools for visualizing the log data and real-time state of the distributed system. The authors developed these tools for analyzing a high-performance distributed system centered around the transfer of large amounts of data at high speeds from a distributed storage server to a remote visualization client. However, this methodology should be generally applicable to any distributed system. This methodology, called NetLogger, has proven invaluable for diagnosing problems in networks and in distributed systems code. This approach is novel in that it combines network, host, and application-level monitoring, providing a complete view of the entire system.

Tierney, Brian; Johnston, William; Crowley, Brian; Hoo, Gary; Brooks, Chris; Gunter, Dan

1999-12-23T23:59:59.000Z

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


401

High Performance Multivariate Visual Data Exploration for Extremely Large Data  

SciTech Connect

One of the central challenges in modern science is the need to quickly derive knowledge and understanding from large, complex collections of data. We present a new approach that deals with this challenge by combining and extending techniques from high performance visual data analysis and scientific data management. This approach is demonstrated within the context of gaining insight from complex, time-varying datasets produced by a laser wakefield accelerator simulation. Our approach leverages histogram-based parallel coordinates for both visual information display as well as a vehicle for guiding a data mining operation. Data extraction and subsetting are implemented with state-of-the-art index/query technology. This approach, while applied here to accelerator science, is generally applicable to a broad set of science applications, and is implemented in a production-quality visual data analysis infrastructure. We conduct a detailed performance analysis and demonstrate good scalability on a distributed memory Cray XT4 system.

Rubel, Oliver; Wu, Kesheng; Childs, Hank; Meredith, Jeremy; Geddes, Cameron G.R.; Cormier-Michel, Estelle; Ahern, Sean; Weber, Gunther H.; Messmer, Peter; Hagen, Hans; Hamann, Bernd; Bethel, E. Wes; Prabhat,

2008-08-22T23:59:59.000Z

402

Status of High Performance PV: Polycrystalline Thin-Film Tandems  

DOE Green Energy (OSTI)

The High-Performance Photovoltaic (HiPerf PV) Project was initiated by the U.S. Department of Energy to substantially increase the viability of photovoltaics (PV) for cost-competitive applications so that PV can contribute significantly to our energy supply and our environment. The HiPerf PV Project aims at exploring the ultimate performance limits of existing PV technologies, approximately doubling their sunlight-to-electricity conversion efficiencies during its course. This work includes bringing thin-film cells and modules toward 25% and 20% efficiencies, respectively, and developing multijunction concentrator cells and modules able to convert more than one-third of the sun's energy to electricity (i.e., 33% efficiency). This paper will address recent accomplishments of the NREL in-house research effort involving polycrystalline thin-film tandems, as well as the research efforts under way in the subcontracted area.

Symko-Davies, M.

2005-02-01T23:59:59.000Z

403

High-performance Computing Applied to Semantic Databases  

SciTech Connect

To-date, the application of high-performance computing resources to Semantic Web data has largely focused on commodity hardware and distributed memory platforms. In this paper we make the case that more specialized hardware can offer superior scaling and close to an order of magnitude improvement in performance. In particular we examine the Cray XMT. Its key characteristics, a large, global shared-memory, and processors with a memory-latency tolerant design, offer an environment conducive to programming for the Semantic Web and have engendered results that far surpass current state of the art. We examine three fundamental pieces requisite for a fully functioning semantic database: dictionary encoding, RDFS inference, and query processing. We show scaling up to 512 processors (the largest configuration we had available), and the ability to process 20 billion triples completely in-memory.

Goodman, Eric L.; Jimenez, Edward; Mizell, David W.; al-Saffar, Sinan; Adolf, Robert D.; Haglin, David J.

2011-06-02T23:59:59.000Z

404

High-performance computing applied to semantic databases.  

Science Conference Proceedings (OSTI)

To-date, the application of high-performance computing resources to Semantic Web data has largely focused on commodity hardware and distributed memory platforms. In this paper we make the case that more specialized hardware can offer superior scaling and close to an order of magnitude improvement in performance. In particular we examine the Cray XMT. Its key characteristics, a large, global shared-memory, and processors with a memory-latency tolerant design, offer an environment conducive to programming for the Semantic Web and have engendered results that far surpass current state of the art. We examine three fundamental pieces requisite for a fully functioning semantic database: dictionary encoding, RDFS inference, and query processing. We show scaling up to 512 processors (the largest configuration we had available), and the ability to process 20 billion triples completely in-memory.

al-Saffar, Sinan (Pacific Northwest National Laboratory, Richland, WA); Jimenez, Edward Steven, Jr.; Adolf, Robert (Pacific Northwest National Laboratory, Richland, WA); Haglin, David (Pacific Northwest National Laboratory, Richland, WA); Goodman, Eric L.; Mizell, David (Cray, Inc., Seattle, WA)

2010-12-01T23:59:59.000Z

405

A review of High Performance Computing foundations for scientists  

E-Print Network (OSTI)

The increase of existing computational capabilities has made simulation emerge as a third discipline of Science, lying midway between experimental and purely theoretical branches [1, 2]. Simulation enables the evaluation of quantities which otherwise would not be accessible, helps to improve experiments and provides new insights on systems which are analysed [3-6]. Knowing the fundamentals of computation can be very useful for scientists, for it can help them to improve the performance of their theoretical models and simulations. This review includes some technical essentials that can be useful to this end, and it is devised as a complement for researchers whose education is focused on scientific issues and not on technological respects. In this document we attempt to discuss the fundamentals of High Performance Computing (HPC) [7] in a way which is easy to understand without much previous background. We sketch the way standard computers and supercomputers work, as well as discuss distributed computing and di...

Ibez, Pablo Garca-Risueo Pablo E

2012-01-01T23:59:59.000Z

406

Summary Status of Conceptual High-Performance, High-Specific-Output Silicon Photovoltaic Systems  

Science Conference Proceedings (OSTI)

The report reviews development efforts and the current status of high-performance, high-specific-output silicon photovoltaic (PV) solar systems. Three system concepts are covered: (1) high-intensity irradiance from individual concentrators directly onto individual PV cells, (2) the redirection of sunlight by a large dish concentrator into a cavity receiver lined with cells, and (3) the redirection of sunlight by a large dish concentrator into a thermophotovoltaic receiver. Key issues, technical risk, and...

1982-05-01T23:59:59.000Z

407

Highlighting High Performance: Clearview Elementary School, Hanover, Pennsylvania  

DOE Green Energy (OSTI)

Case study on high performance building features of Clearview Elementary School in Hanover, Pennsylvania. Clearview Elementary School in Hanover, Pennsylvania, is filled with natural light, not only in classrooms but also in unexpected, and traditionally dark, places like stairwells and hallways. The result is enhanced learning. Recent scientific studies conducted by the California Board for Energy Efficiency, involving 21,000 students, show test scores were 15% to 26% higher in classrooms with daylighting. Clearview's ventilation system also helps students and teachers stay healthy, alert, and focused on learning. The school's superior learning environment comes with annual average energy savings of about 40% over a conventional school. For example, with so much daylight, the school requires about a third less energy for electric lighting than a typical school. The school's innovative geothermal heating and cooling system uses the constant temperature of the Earth to cool and heat the building. The building and landscape designs work together to enhance solar heating in the winter, summer cooling, and daylighting all year long. Students and teachers have the opportunity to learn about high-performance design by studying their own school. At Clearview, the Hanover Public School District has shown that designing a school to save energy is affordable. Even with its many innovative features, the school's $6.35 million price tag is just $150,000 higher than average for elementary schools in Pennsylvania. Projected annual energy cost savings of approximately $18,000 mean a payback in 9 years. Reasonable construction costs demonstrate that other school districts can build schools that conserve energy, protect natural resources, and provide the educational and health benefits that come with high-performance buildings.

Not Available

2002-08-01T23:59:59.000Z

408

Application of High Performance Computing for Automotive Design and Manufacturing  

DOE Green Energy (OSTI)

This project developed new computer simulation tools which can be used in DOE internal combustion engine and weapons simulation programs currently being developed. Entirely new massively parallel computer modeling codes for chemically reactive and incompressible fluid mechanics with interactive physics sub-models were developed. Chemically reactive and aerodynamic flows are central parts in many DOE systems. Advanced computer modeling codes with new chemistry and physics capabilities can be used on massively parallel computers to handle more complex problems associated with chemically reactive propulsion systems, energy efficiency, enhanced performance and durability, multi-fuel capability and reduced pollutant emissions. The work for this project is also relevant to the design, development and application of advanced user-friendly computer codes for new high-performance computing platforms for manufacturing and which will also impact and interact with the U.S.'s advanced communications program. Finite element method (FEM) formulations were developed that are directly usable in simulating rapid deformation resulting from collision, impact, projectiles, etc. This simulation capability is applicable to both DOE (e.g., surety and penetration) and DoD (e.g., armor) applications. The models of plate and shell composite structures were developed for simulation of glass continuous strand mat and braided composite in thermoset polymer matrix. The developed numerical tools based upon the fundamental mechanisms responsible for damage evolution in continuous-fiber organic-matrix composites. This class of materials is especially relevant because of their high strength to mass ratio, anisotropic behavior, and general application in most transportation and weapon delivery systems. The high-performance computational tools developed are generally applicable to a broad spectrum of materials with similar fiber structures.

Zacharia, T.

1999-04-01T23:59:59.000Z

409

Energy Efficiency Opportunities in Federal High Performance Computing Data Centers  

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

Efficiency Efficiency Opportunities in Federal High Performance Computing Data Centers Prepared for the U.S. Department of Energy Federal Energy Management Program By Lawrence Berkeley National Laboratory Rod Mahdavi, P.E. LEED A.P. September 2013 2 Contacts Rod Mahdavi, P.E. LEED AP Lawrence Berkeley National Laboratory (510) 495-2259 rmahdavi@lbl.gov For more information on FEMP: Will Lintner, P.E. Federal Energy Management Program U.S. Department of Energy (202) 586-3120 william.lintner@ee.doe.gov 3 Contents Executive Summary .................................................................................................... 6 Overview .................................................................................................................... 7

410

High Performance Building Incentive Program | Department of Energy  

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

Incentive Program Incentive Program High Performance Building Incentive Program < Back Eligibility Commercial Residential Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Bioenergy Solar Lighting Windows, Doors, & Skylights Heating Buying & Making Electricity Water Heating Wind Maximum Rebate Residential loans/loan guarantees: 100,000 Commercial loans/loan guarantees: 2 million Grants: Lesser of 10% of project costs or 500,000 Program Info Start Date April 2009 State Pennsylvania Program Type State Loan Program Rebate Amount Vary by project, but program generally requires matching funds at least equivalent to DCED funding Provider Department of Community and Economic Development

411

Kitchen Ventilation Should be High Performance (Not Optional)  

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

Kitchen Ventilation Kitchen Ventilation Should be High Performance (not Optional) Brett C. Singer Residential Building Systems & Indoor Environment Groups Lawrence Berkeley National Laboratory Building America Technical Update Denver, CO April 30, 2013 Acknowledgements PROGRAM SUPPORT *U.S. Department of Energy - Building America Program *U.S. Environmental Protection Agency - Indoor Environments Division *U.S. Department of Housing and Urban Development - Office of Healthy Homes & Lead Hazard Control *California Energy Commission - Public Interest Energy Research Program TECHNICAL CONTRIBUTIONS *Woody Delp, Tosh Hotchi, Melissa Lunden, Nasim Mullen, Chris Stratton, Doug Sullivan, Iain Walker Kitchen Ventilation Simplified PROBLEM: * Cooking burners & cooking produce odors, moisture

412

Strategy Guideline: Advanced Construction Documentation Recommendations for High Performance Homes  

SciTech Connect

As whole house energy efficiency increases, new houses become less like conventional houses that were built in the past. New materials and new systems require greater coordination and communication between industry stakeholders. The Guideline for Construction Documents for High Performance Housing provides advice to address this need. The reader will be presented with four changes that are recommended to achieve improvements in energy efficiency, durability and health in Building America houses: create coordination drawings, improve specifications, improve detail drawings, and review drawings and prepare a Quality Control Plan.

Lukachko, A.; Gates, C.; Straube, J.

2011-12-01T23:59:59.000Z

413

Editorial for Advanced Theory and Practice for High Performance Computing and Communications Geoffrey Fox  

E-Print Network (OSTI)

Editorial for Advanced Theory and Practice for High Performance Computing and Communications Theory and Practice for High Performance Computing and Communications. I would like to thank Omer Rana International Conference on High Performance Computing and Communications (HPCC-09) http

414

June 4, 2007 Advanced Fault Tolerance Solutions for High Performance Computing  

E-Print Network (OSTI)

June 4, 2007 Advanced Fault Tolerance Solutions for High Performance Computing Workshop on Trends Tolerance Solutions for High Performance Computing Christian Engelmann Oak Ridge National Laboratory, Oak Solutions for High Performance Computing Workshop on Trends, Technologies and Collaborative Opportunities

Engelmann, Christian

415

High Performance Fuel Desing for Next Generation Pressurized Water Reactors  

SciTech Connect

The use of internally and externally cooled annular fule rods for high power density Pressurized Water Reactors is assessed. The assessment included steady state and transient thermal conditions, neutronic and fuel management requirements, mechanical vibration issues, fuel performance issues, fuel fabrication methods and econmic assessment. The investigation was donducted by a team from MIT, Westinghouse, Gamma Engineering, Framatome ANP, and AECL. The analyses led to the conclusion that raising the power density by 50% may be possible with this advanced fuel. Even at the 150% power level, the fuel temperature would be a few hundred degrees lower than the current fuel temperatre. Significant economic and safety advantages can be obtained by using this fuel in new reactors. Switching to this type of fuel for existing reactors would yield safety advantages, but the economic return is dependent on the duration of plant shutdown to accommodate higher power production. The main feasiblity issue for the high power performance appears to be the potential for uneven splitting of heat flux between the inner and outer fuel surfaces due to premature closure of the outer fuel-cladding gap. This could be overcome by using a very narrow gap for the inner fuel surface and/or the spraying of a crushable zirconium oxide film at the fuel pellet outer surface. An alternative fuel manufacturing approach using vobropacking was also investigated but appears to yield lower than desirable fuel density.

Mujid S. Kazimi; Pavel Hejzlar

2006-01-31T23:59:59.000Z

416

Nuclear rockets: High-performance propulsion for Mars  

Science Conference Proceedings (OSTI)

A new impetus to manned Mars exploration was introduced by President Bush in his Space Exploration Initiative. This has led, in turn, to a renewed interest in high-thrust nuclear thermal rocket propulsion (NTP). The purpose of this report is to give a brief tutorial introduction to NTP and provide a basic understanding of some of the technical issues in the realization of an operational NTP engine. Fundamental physical principles are outlined from which a variety of qualitative advantages of NTP over chemical propulsion systems derive, and quantitative performance comparisons are presented for illustrative Mars missions. Key technologies are described for a representative solid-core heat-exchanger class of engine, based on the extensive development work in the Rover and NERVA nuclear rocket programs (1955 to 1973). The most driving technology, fuel development, is discussed in some detail for these systems. Essential highlights are presented for the 19 full-scale reactor and engine tests performed in these programs. On the basis of these tests, the practicality of graphite-based nuclear rocket engines was established. Finally, several higher-performance advanced concepts are discussed. These have received considerable attention, but have not, as yet, developed enough credibility to receive large-scale development.

Watson, C.W.

1994-05-01T23:59:59.000Z

417

GOCE DATA ANALYSIS: REALIZATION OF THE INVARIANTS APPROACH IN A HIGH PERFORMANCE COMPUTING ENVIRONMENT  

E-Print Network (OSTI)

GOCE DATA ANALYSIS: REALIZATION OF THE INVARIANTS APPROACH IN A HIGH PERFORMANCE COMPUTING) implementation of the algorithms on high performance computing platforms. #12;2. INVARIANTS REPRESENTATION

Stuttgart, Universität

418

U.S. Department of Energy High Performance and Sustainable Buildings...  

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

Department of Energy High Performance and Sustainable Buildings Implementation Plan U.S. Department of Energy High Performance and Sustainable Buildings Implementation Plan Plan...

419

High Performance Computing Update, June 2009 1. A meeting was held with users and potential users of high performance computing systems in April and this  

E-Print Network (OSTI)

High Performance Computing Update, June 2009 1. A meeting was held with users and potential users of high performance computing systems in April and this considered a proposal from the Director and application "advice" and a core system to host and manage high performance computing nodes (or clusters

Sussex, University of

420

High Performance Building Facade Solutions PIER Final Project Report  

SciTech Connect

Building facades directly influence heating and cooling loads and indirectly influence lighting loads when daylighting is considered, and are therefore a major determinant of annual energy use and peak electric demand. Facades also significantly influence occupant comfort and satisfaction, making the design optimization challenge more complex than many other building systems.This work focused on addressing significant near-term opportunities to reduce energy use in California commercial building stock by a) targeting voluntary, design-based opportunities derived from the use of better design guidelines and tools, and b) developing and deploying more efficient glazings, shading systems, daylighting systems, facade systems and integrated controls. This two-year project, supported by the California Energy Commission PIER program and the US Department of Energy, initiated a collaborative effort between The Lawrence Berkeley National Laboratory (LBNL) and major stakeholders in the facades industry to develop, evaluate, and accelerate market deployment of emerging, high-performance, integrated facade solutions. The LBNL Windows Testbed Facility acted as the primary catalyst and mediator on both sides of the building industry supply-user business transaction by a) aiding component suppliers to create and optimize cost effective, integrated systems that work, and b) demonstrating and verifying to the owner, designer, and specifier community that these integrated systems reliably deliver required energy performance. An industry consortium was initiated amongst approximately seventy disparate stakeholders, who unlike the HVAC or lighting industry, has no single representative, multi-disciplinary body or organized means of communicating and collaborating. The consortium provided guidance on the project and more importantly, began to mutually work out and agree on the goals, criteria, and pathways needed to attain the ambitious net zero energy goals defined by California and the US.A collaborative test, monitoring, and reporting protocol was also formulated via the Windows Testbed Facility in collaboration with industry partners, transitioning industry to focus on the importance of expecting measured performance to consistently achieve design performance expectations. The facility enables accurate quantification of energy use, peak demand, and occupant comfort impacts of synergistic facade-lighting-HVAC systems on an apples-to-apples comparative basis and its data can be used to verify results from simulations. Emerging interior and exterior shading technologies were investigated as potential near-term, low-cost solutions with potential broad applicability in both new and retrofit construction. Commercially-available and prototype technologies were developed, tested, and evaluated. Full-scale, monitored field tests were conducted over solstice-to-solstice periods to thoroughly evaluate the technologies, uncover potential risks associated with an unknown, and quantify performance benefits. Exterior shading systems were found to yield net zero energy levels of performance in a sunny climate and significant reductions in summer peak demand. Automated interior shading systems were found to yield significant daylighting and comfort-related benefits.In support of an integrated design process, a PC-based commercial fenestration (COMFEN) software package, based on EnergyPlus, was developed that enables architects and engineers to quickly assess and compare the performance of innovative facade technologies in the early sketch or schematic design phase. This tool is publicly available for free and will continue to improve in terms of features and accuracy. Other work was conducted to develop simulation tools to model the performance of any arbitrary complex fenestration system such as common Venetian blinds, fabric roller shades as well as more exotic innovative facade systems such as optical louver systems.

Lee, Eleanor; Selkowitz, Stephen

2009-12-31T23:59:59.000Z

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


421

The Extreme Benchmark Suite: Measuring High-Performance Embedded Systems  

E-Print Network (OSTI)

The Extreme Benchmark Suite (XBS) is designed to support performance measurement of highly parallel extreme processors, many of which are designed to replace custom hardware implementations. XBS is designed to avoid many of the problems that occur when using existing benchmark suites with nonstandard and experimental architectures. In particular, XBS is intended to provide a fair comparison of a wide range of architectures, from general-purpose processors to hard-wired ASIC implementations. XBS has a clean modular structure to reduce porting effort, and is designed to be usable with slow cycle-accurate simulators. This work presents the motivation for the creation of XBS and describes in detail the XBS framework. Several benchmarks implemented with this framework are discussed, and these benchmarks are used to compare a standard platform, an experimental architecture, and custom

Steven Gerding; Krste Asanovi?

2005-01-01T23:59:59.000Z

422

Use of high performance computing resources for underwater acoustic modeling.  

Science Conference Proceedings (OSTI)

The majority of standard underwater propagation models provide a two?dimensional (range and depth) acoustic field for a single frequency point source. Computational resource demand increases considerably when the three?dimensional acoustic field of a broad?band spatially extended source is of interest. An upgrade of the standard parabolic equationmodel RAM for use in a high?performance computing (HPC) environment is discussed. A benchmarked upgraded version of RAM is used in the Louisiana Optical Network Initiative HPC?environment to model the three?dimensional acoustic field of a seismic airgun array. Four?dimensional visualization (time and space) of the generated data volume is also addressed. [Research supported by the Louisiana Optical Network Initiative

Anca M. Niculescu; Natalia A. Sidorovskaia; Peter Achi; Arslan M. Tashmukhambetov; George E. Ioup; Juliette W. Ioup

2009-01-01T23:59:59.000Z

423

Commercial Building Partners Catalyze High Performance Buildings Across the Nation  

SciTech Connect

In 2008 the US Department of Energy (DOE) launched the Commercial Buildings Partnership (CBP) project to accelerate market adoption of commercially available energy saving technologies into the design process for new and upgraded commercial buildings. The CBP represents a unique collaboration between industry leaders and DOE to develop high performance buildings as a model for future construction and renovation. CBP was implemented in two stages. This paper focuses on lessons learned at Pacific Northwest National Laboratory (PNNL) in the first stage and discusses some partner insights from the second stage. In the first stage, PNNL and the National Renewable Energy Laboratory recruited CBP partners that own large portfolios of buildings. The labs provide assistance to the partners' design teams and make a business case for energy investments.

Baechler, Michael C.; Dillon, Heather E.; Bartlett, Rosemarie

2012-08-01T23:59:59.000Z

424

High-performance laser processing using manipulated ultrafast laser pulses  

Science Conference Proceedings (OSTI)

We employ manipulated ultrafast laser pulses to realize microprocessing with high-performance. Efficient microwelding of glass substrates by irradiation by a double-pulse train of ultrafast laser pulses is demonstrated. The bonding strength of two photostructurable glass substrates welded by double-pulse irradiation was evaluated to be 22.9 MPa, which is approximately 22% greater than that of a sample prepared by conventional irradiation by a single pulse train. Additionally, the fabrication of hollow microfluidic channels with a circular cross-sectional shape embedded in fused silica is realized by spatiotemporally focusing the ultrafast laser beam. We show both theoretically and experimentally that the spatiotemporal focusing of ultrafast laser beam allows for the creation of a three-dimensionally symmetric spherical peak intensity distribution at the focal spot.

Sugioka, Koji; Cheng Ya; Xu Zhizhan; Hanada, Yasutaka; Midorikawa, Katsumi [RIKEN - Advanced Science Institute, Wako, Saitama 351-0198 (Japan); State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (China); RIKEN - Advanced Science Institute, Wako, Saitama 351-0198 (Japan)

2012-07-30T23:59:59.000Z

425

National Best Practices Manual for Building High Performance Schools  

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

Best Practices Manual Best Practices Manual For Building High Performance Schools Acknowledgements The U.S. Department of Energy would like to acknowledge the help and assistance of the EnergySmart Schools team and the many authors and reviewers that provided input and feedback during the process of developing the report. Those include: US Department of Energy: David Hansen, Daniel Sze; EnergySmart Schools Team: Larry Schoff; US Environmental Protection Agency: Melissa Payne, Bob Thompson; Lawrence Berkeley National Laboratory: Rick Diamond; National Renewable Energy Laboratory: Ren Anderson, Zahra Chaudhry, Jeff Clarke, Kyra Epstein, Tony Jimenez, Patty Kappaz, Patricia Plympton, Byron Stafford, Marcy Stone, John Thornton, Paul Torcellini; Oak Ridge National Laboratory: Andre Desjarlais,

426

High Performance Computing Symposium 1996 Evaluating the Performance of Parallel Programs in a PseudoParallel MPI  

E-Print Network (OSTI)

High Performance Computing Symposium 1996 Evaluating the Performance of Parallel Programs 28­Feb­1981 Born in Halifax, Nova Scotia (Canada) Obtained BSc at Dalhousie University. Currently.'' In High Performance Computing Symposium '95. Demaine, Erik D. 1994. ``Heterogeneous Organization

Demaine, Erik

427

High-performance dehumidifier for solar desiccant cooling systems  

DOE Green Energy (OSTI)

An advanced-design, one-tenth-scale dehumidifier for use in residential solar desiccant-cooling systems has been built and tested. The new dehumidifier was designed using a parallel-passage geometry, where air flows through channels formed by walls coated with fine-ground silica gel desiccant. This concept has a high heat and mass transfer effectiveness and promises to double the coefficient of performance of the desiccant cooling system to 1.1 kW cooling output/kW thermal input. The parallel-passage design was found to have very low pressure drop, typically 20 Pa (.08 in. water) at design conditions. The low fan power required to drive such low pressure drop components indicates that electrical COP's in the range of 8.0 to 8.2 kW cooling output/kW electrical input are possible. Results presented include parametric studies of the effect of conditions such as temperature and humidity and design parameters such as desiccant particle size and channel spacing on dehumidifier performance.

Schlepp, D.

1983-05-01T23:59:59.000Z

428

Parallel application-level behavioral attributes for performance and energy management of high-performance computing systems  

Science Conference Proceedings (OSTI)

Run time variability of parallel applications continues to present significant challenges to their performance and energy efficiency in high-performance computing (HPC) systems. When run times are extended and unpredictable, application developers perceive ... Keywords: Performance and energy management, Performance measurement, Run time attributes

Jeffrey J. Evans; Charles E. Lucas

2013-03-01T23:59:59.000Z

429

Fibrous Fillers to Manufacture Ultra High Ash/Performance Paper  

SciTech Connect

The paper industry is one of the largest users of energy and emitters of CO2 in the US manufacturing industry. In addition to that, it is facing tremendous financial pressure due to lower cost imports. The fine paper industry has shrunk from 15 million tons per year production to 10 million tons per year in the last 5 years. This has resulted in mill closures and job loses. The AF&PA and the DOE formed a program called Agenda 2020 to help in funding to develop breakthrough technologies to provide help in meeting these challenges. The objectives of this project were to optimize and scale-up Fibrous Fillers technology, ready for commercial deployment and to develop ultra high ash/high performance paper using Fibrous Fillers. The goal was to reduce energy consumption, carbon footprint, and cost of manufacturing paper and related industries. GRI International (GRI) has been able to demonstrate the techno - economic feasibility and economic advantages of using its various products in both handsheets as well as in commercial paper mills. GRI has also been able to develop sophisticated models that demonstrate the effect of combinations of GRI's fillers at multiple filler levels. GRI has also been able to develop, optimize, and successfully scale-up new products for use in commercial paper mills.

Dr. VIjay K. Mathur

2009-04-30T23:59:59.000Z

430

U.S. Department of Energy High Performance and Sustainable Buildings Implementation Plan  

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

Plan outlining DOE's commitment to designing, building, operating, and maintaining high performance and sustainable buildings (HPSB).

431

Computer experts meet at CERN to discuss future of european high performance computing and networking  

E-Print Network (OSTI)

Computer experts meet at CERN to discuss future of european high performance computing and networking

CERN Press Office. Geneva

1992-01-01T23:59:59.000Z

432

Highlighting High Performance: The Philip Merrill Environmental Center; Chesapeake Bay Foundation, Annapolis, Maryland  

SciTech Connect

Case study on high performance building features of the Chesapeake Bay Foundation's Philip Merrill Environmental Center.

Not Available

2002-04-01T23:59:59.000Z

433

Coal-fired high performance power generating system  

SciTech Connect

The goals of the program are to develop a coal-fired high performance power generation system (HIPPS) by the year 2000 that is capable of > 47% thermal efficiency; NO[sub x] SO [sub x] and Particulates < 25% NSPS; Cost of electricity 10% lower; coal > 65% of heat input and all solid wastes benign. In order to achieve these goals our team has outlined a research plan based on an optimized analysis of a 250 MW[sub e] combined cycle system applicable to both frame type and aeroderivative gas turbines. Under the constraints of the cycle analysis we have designed a high temperature advanced furnace (HITAF) which integrates several combustor and air heater designs with appropriate ash management procedures. Most of this report discusses the details of work on these components, and the R D Plan for future work. The discussion of the combustor designs illustrates how detailed modeling can be an effective tool to estimate NO[sub x] production, minimum burnout lengths, combustion temperatures and even particulate impact on the combustor walls. When our model is applied to the long flame concept it indicates that fuel bound nitrogen will limit the range of coals that can use this approach. For high nitrogen coals a rapid mixing, rich-lean, deep staging combustor will be necessary. The air heater design has evolved into two segments: a convective heat exchanger downstream of the combustion process; a radiant panel heat exchanger, located in the combustor walls; The relative amount of heat transferred either radiatively or convectively will depend on the combustor type and the ash properties.

1992-07-01T23:59:59.000Z

434

Progress Towards High Performance, Steady-state Spherical Torus  

SciTech Connect

Research on the Spherical Torus (or Spherical Tokamak) is being pursued to explore the scientific benefits of modifying the field line structure from that in more moderate aspect-ratio devices, such as the conventional tokamak. The Spherical Tours (ST) experiments are being conducted in various U.S. research facilities including the MA-class National Spherical Torus Experiment (NSTX) at Princeton, and three medium-size ST research facilities: Pegasus at University of Wisconsin, HIT-II at University of Washington, and CDX-U at Princeton. In the context of the fusion energy development path being formulated in the U.S., an ST-based Component Test Facility (CTF) and, ultimately a Demo device, are being discussed. For these, it is essential to develop high-performance, steady-state operational scenarios. The relevant scientific issues are energy confinement, MHD stability at high beta (B), noninductive sustainment, ohmic-solenoid-free start-up, and power and particle handling. In the confinement area, the NSTX experiments have shown that the confinement can be up to 50% better than the ITER-98-pby2 H-mode scaling, consistent with the requirements for an ST-based CTF and Demo. In NSTX, CTF-relevant average toroidal beta values bT of up to 35% with the near unity central betaT have been obtained. NSTX will be exploring advanced regimes where bT up to 40% can be sustained through active stabilization of resistive wall modes. To date, the most successful technique for noninductive sustainment in NSTX is the high beta-poloidal regime, where discharges with a high noninductive fraction ({approx}60% bootstrap current + neutral-beam-injected current drive) were sustained over the resistive skin time. Research on radio-frequency-based heating and current drive utilizing HHFW (High Harmonic Fast Wave) and EBW (Electron Bernstein Wave) is also pursued on NSTX, Pegasus, and CDX-U. For noninductive start-up, the Coaxial Helicity Injection (CHI), developed in HIT/HIT-II, has been adopted on NSTX to test the method up to Ip {approx} 500 kA. In parallel, start-up using radio-frequency current drive and only external poloidal field coils are being developed on NSTX. The area of power and particle handling is expected to be challenging because of the higher power density expected in the ST relative to that in conventional aspect-ratio tokamaks. Due to its promise for power and particle handling, liquid lithium is being studied in CDX-U as a potential plasma-facing surface for a fusion reactor.

M. Ono; M.G. Bell; R.E. Bell; T. Bigelow; M. Bitter; W. Blanchard; J. Boedo; C. Bourdelle; C. Bush; W. Choe; J. Chrzanowski; D.S. Darrow; S.J. Diem; R. Doerner; P.C. Efthimion; J.R. Ferron; R.J. Fonck; E.D. Fredrickson; G.D. Garstka; D.A. Gates; T. Gray; L.R. Grisham; W. Heidbrink; K.W. Hill; D. Hoffman; T.R. Jarboe; D.W. Johnson; R. Kaita; S.M. Kaye; C. Kessel; J.H. Kim; M.W. Kissick; S. Kubota; H.W. Kugel; B.P. LeBlanc; K. Lee; S.G. Lee; B.T. Lewicki; S. Luckhardt; R. Maingi; R. Majeski; J. Manickam; R. Maqueda; T.K. Mau; E. Mazzucato; S.S. Medley; J. Menard; D. Mueller; B.A. Nelson; C. Neumeyer; N. Nishino; C.N. Ostrander; D. Pacella; F. Paoletti; H.K. Park; W. Park; S.F. Paul; Y.-K. M. Peng; C.K. Phillips; R. Pinsker; P.H. Probert; S. Ramakrishnan; R. Raman; M. Redi; A.L. Roquemore; A. Rosenberg; P.M. Ryan; S.A. Sabbagh; M. Schaffer; R.J. Schooff; R. Seraydarian; C.H. Skinner; A.C. Sontag; V. Soukhanovskii; J. Spaleta; T. Stevenson; D. Stutman; D.W. Swain; E. Synakowski; Y. Takase; X. Tang; G. Taylor; J. Timberlake; K.L. Tritz; E.A. Unterberg; A. Von Halle; J. Wilgen; M. Williams; J.R. Wilson; X. Xu; S.J. Zweben; R. Akers; R.E. Barry; P. Beiersdorfer; J.M. Bialek; B. Blagojevic; P.T. Bonoli; M.D. Carter; W. Davis; B. Deng; L. Dudek; J. Egedal; R. Ellis; M. Finkenthal; J. Foley; E. Fredd; A. Glasser; T. Gibney; M. Gilmore; R.J. Goldston; R.E. Hatcher; R.J. Hawryluk; W. Houlberg; R. Harvey; S.C. Jardin; J.C. Hosea; H. Ji; M. Kalish; J. Lowrance; L.L. Lao; F.M. Levinton; N.C. Luhmann; R. Marsala; D. Mastravito; M.M. Menon; O. Mitarai; M. Nagata; G. Oliaro; R. Parsells; T. Peebles; B. Peneflor; D. Piglowski; G.D. Porter; A.K. Ram; M. Rensink; G. Rewoldt; P. Roney; K. Shaing; S. Shiraiwa; P. Sichta; D. Stotler; B.C. Stratton; R. Vero; W.R. Wampler; G.A. Wurden

2003-10-02T23:59:59.000Z

435

Distribution System Voltage Performance Analysis for High-Penetration Photovoltaics  

DOE Green Energy (OSTI)

This report examines the performance of commonly used distribution voltage regulation methods under reverse power flow.

Liu, E.; Bebic, J.

2008-02-01T23:59:59.000Z

436

Dynamic Thermal Management for High-Performance Storage Systems  

Science Conference Proceedings (OSTI)

Thermal-aware design of disk drives is important because high temperatures can cause reliability problems. Dynamic Thermal Management (DTM) techniques have been proposed to operate the disk at the average case temperature, rather than at the worse case by modulating the activities to avoid thermal emergencies. The thermal emergencies can be caused by unexpected events, such as fan-breaks, increased inlet air temperature, etc. One of the DTM techniques is a delay-based approach that adjusts the disk seek activities, cooling down the disk drives. Even if such a DTM approach could overcome thermal emergencies without stopping disk activity, it suffers from long delays when servicing the requests. Thus, in this chapter, we investigate the possibility of using a multispeed disk-drive (called dynamic rotations per minute (DRPM)) that dynamically modulates the rotational speed of the platter for implementing the DTM technique. Using a detailed performance and thermal simulator of a storage system, we evaluate two possible DTM policies (- time-based and watermark-based) with a DRPM disk-drive and observe that dynamic RPM modulation is effective in avoiding thermal emergencies. However, we find that the time taken to transition between different rotational speeds of the disk is critical for the effectiveness of the DRPM based DTM techniques.

Kim, Youngjae [ORNL; Gurumurthi, Dr Sudhanva [University of Virginia; Sivasubramaniam, Anand [Pennsylvania State University

2012-01-01T23:59:59.000Z

437

Performance of digital integrated circuit technologies at very high temperatures  

Science Conference Proceedings (OSTI)

Results of investigations of the performance and reliability of digital bipolar and CMOS integrated circuits over the 25 to 340/sup 0/C range are reported. Included in these results are both parametric variation information and analysis of the functional failure mechanisms. Although most of the work was done using commercially available circuits (TTL and CMOS) and test chips from commercially compatible processes, some results of experimental simulations of dielectrically isolated CMOS are also discussed. It was found that commercial Schottky clamped TTL, and dielectrically isolated, low power Schottky-clamped TTL, functioned to junction temperatures in excess of 325/sup 0/C. Standard gold doped TTL functioned only to 250/sup 0/C, while commercial, isolated I/sup 2/L functioned to the range 250/sup 0/C to 275/sup 0/C. Commercial junction isolated CMOS, buffered and unbuffered, functioned to the range 280/sup 0/C to 310/sup 0/C/sup +/, depending on the manufacturer. Experimental simulations of simple dielectrically isolated CMOS integrated circuits, fabricated with heavier doping levels than normal, functioned to temperatures in excess of 340/sup 0/C. High temperature life testing of experimental, silicone-encapsulated simple TTL and CMOS integrated circuits have shown no obvious life limiting problems to date. No barrier to reliable functionality of TTL bipolar or CMOS integrated ciruits at temperatures in excess of 300/sup 0/C has been found.

Prince, J.L.; Draper, B.L.; Rapp, E.A.; Kromberg, J.N.; Fitch, L.T.

1980-01-01T23:59:59.000Z

438

Algorithmic Based Fault Tolerance Applied to High Performance Computing  

E-Print Network (OSTI)

We present a new approach to fault tolerance for High Performance Computing system. Our approach is based on a careful adaptation of the Algorithmic Based Fault Tolerance technique (Huang and Abraham, 1984) to the need of parallel distributed computation. We obtain a strongly scalable mechanism for fault tolerance. We can also detect and correct errors (bit-flip) on the fly of a computation. To assess the viability of our approach, we have developed a fault tolerant matrix-matrix multiplication subroutine and we propose some models to predict its running time. Our parallel fault-tolerant matrix-matrix multiplication scores 1.4 TFLOPS on 484 processors (cluster jacquard.nersc.gov) and returns a correct result while one process failure has happened. This represents 65% of the machine peak efficiency and less than 12% overhead with respect to the fastest failure-free implementation. We predict (and have observed) that, as we increase the processor count, the overhead of the fault tolerance drops significantly.

Bosilca, George; Dongarra, Jack; Langou, Julien

2008-01-01T23:59:59.000Z

439

Engineering limitations of ceramic composites for high performance and high temperature applications  

Science Conference Proceedings (OSTI)

Some of the engineering limitations of ceramic matrix composites in high-temperature applications are reviewed in terms of fundamental properties. The issues associated with toughness control in the regimes where fiber pullout is not extensive are discussed. Toughening will decrease with increasing temperature because fiber strength decreases and interfacial sliding resistance increases. The temperatures regime where reinforcement fibers become creep limited, as opposed to strength limited, will influence design considerations. Matrix cracking becomes an important high temperature design limiting parameter, particularly where oxygen can rapidly gain access to bridging fibers. Even the direct permeation of oxygen through uncracked matrices may be sufficient to internally degrade fibers and limit performance in some systems.

Courtright, E.L.

1993-08-01T23:59:59.000Z

440

Graphenic Material for High Performance Li-Ion Battery Electrodes  

Science Conference Proceedings (OSTI)

3D Nanostructured Bicontinuous Electrodes: Path to Ultra-High Power and Energy ... High Energy Density Lithium Capacitors Using Carbon-Carbon Electrodes.

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


441

Advanced high performance steam systems for industrial cogeneration: Final report  

SciTech Connect

Advanced steam conditions of 1500/sup 0/F and 1500 psig have been shown to offer a major positive economic impact and a dramatic improvement in cogeneration system performance. In a back pressure steam turbine system, electricity production increases by 80%, and the return on investment improves by 60%. For a 35% extraction turbine, the electricity production increases 28% and the return increases by 34%. Designs of a 1500/sup 0/F modular steam generator and two sizes of matching steam turbines have been completed. The steam generator module uses all Alloy 800 tubes except for two superheater rows of Inconel 617. Its design is based on current production Alloy 800 once-through steam generators currently being introduced into cogeneration combined cycles. A test loop is currently evaluating candidate steam generator tube materials and steam turbine materials at 1500/sup 0/F and 1500 psig. To date, 4000 hours of operation of this loop have been accumulated. The candidate metals after operation in 1500/sup 0/F and 1500 psig steam showed no surface distress. Trade-off studies have been completed on the high temperature steam turbine. Tangential, radial, and axial turbine configurations have been designed and evaluated. The stress analyses of the 1500/sup 0/F steam turbines show that the machine can be operated at 1500/sup 0/F and 1500 psig for over ten years without component replacement when using rotor hub cooling to maintain disk bore temperatures in the 900/sup 0/F range. When applied in back pressure steam, extraction steam, and combined cycle systems the ''1500/sup 0/F steam technology building blocks'' provide full coverage of industrial cogeneration from 4 MW to 25 MW in a single gas turbine and steam turbine installation. A twelve-inch diameter tangential flow turbine has also been designed which is optimum in the 1 to 3 MW power range.

Duffy, T.E.; Schneider, P.H.; Campbell, A.H.; Evensen, O.E.

1987-01-01T23:59:59.000Z

442

The Magellan Project: Building High-Performance Clouds | Argonne...  

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

our network interfaces were the limiting factor was excellent; that demonstrates the low overhead virtualization can have, while leaving room for improved node performance. Even...

443

High-Level Waste Corporate Board Performance Assessment Subcommittee  

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

Level Waste Corporate Board Performance Assessment Community of Practice John E. Marra, Ph.D. Associate Laboratory Director 21 May 2009 Denver, CO Office of Waste Processing...

444

High three dimensional thermoelectric performance from low dimensional bands  

SciTech Connect

Reduced dimensionality has long been regarded as an important strategy for increasing thermoelectric performance, for example in superlattices and other engineered structures. Here we point out and illustrate by examples that three dimensional bulk materials can be made to behave as if they were two dimensional from the point of view of thermoelectric performance. Implications for the discovery of new practical thermoelectrics are discussed.

Singh, David J [ORNL; Chen, Xin [ORNL; Parker, David S [ORNL

2013-01-01T23:59:59.000Z

445

Energy Performance and Comfort Level in High Rise and Highly Glazed Office Buildings  

E-Print Network (OSTI)

Thermal and visual comfort in buildings play a significant role on occupants' performance but on the other hand achieving energy savings and high comfort levels can be a quite difficult task especially in high rise buildings with highly glazed facades. Many studies suggest that the energy needed to keep the interior conditions at required comfort levels in buildings depends on several factors such as physical and optical properties of building elements, indoor and outdoor climate and behaviour of the occupants, etc. Moreover depending on the different orientation of building facade, the impact of these parameters might vary. The buildings are usually designed without paying much attention to this fact. The needs of each building zone might differ greatly and in order to achieve better indoor environment, different actions might be needed to taken considering the individual characteristics of each zone. In the proposed research the possibilities of evaluating building energy and comfort performance simultaneously taking into account the impact of facade orientation with use of whole building energy simulation tools are investigated through a case study.

Bayraktar, M.; Perino, M.; Yilmaz, A. Z.

2010-01-01T23:59:59.000Z

446

High Performance Multi-Walled Carbon Nanotubes Reinforced ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2013 TMS Annual Meeting & Exhibition. Symposium , Hybrid and Hierarchical Composite Materials. Presentation Title, High...

447

The rise and fall of high performance Fortran  

Science Conference Proceedings (OSTI)

HPF pioneered a high-level approach to parallel programming but failed to win over a broad user community.

Ken Kennedy; Charles Koelbel; Hans Zima

2011-11-01T23:59:59.000Z

448

The development of high performance online tracker for High Level Trigger of Muon Spectrometer of ALICE  

E-Print Network (OSTI)

The Muon Spectrometer (MS) of the ALICE experiment at LHC is equipped with a HLT (High Level Trigger), whose aim is to improve the accuracy of the trigger cuts delivered at the L0 stage. A computational challenge of real-time event reconstruction is satisfied to achieve this software trigger cut of the HLT. After the description of the online algorithms, the performance of the online tracker is compared with that of the offline tracker using the measured pp collisions at $\\sqrt{s}=7$ TeV.

Indranil Das

2011-05-19T23:59:59.000Z

449

The development of high performance online tracker for High Level Trigger of Muon Spectrometer of ALICE  

E-Print Network (OSTI)

The Muon Spectrometer (MS) of the ALICE experiment at LHC is equipped with a HLT (High Level Trigger), whose aim is to improve the accuracy of the trigger cuts delivered at the L0 stage. A computational challenge of real-time event reconstruction is satisfied to achieve this software trigger cut of the HLT. After the description of the online algorithms, the performance of the online tracker is compared with that of the offline tracker using the measured pp collisions at $\\sqrt{s}=7$ TeV.

Das, Indranil

2011-01-01T23:59:59.000Z

450

Adaptive Cache Compression for High-Performance Processors  

Science Conference Proceedings (OSTI)

Modern processors use two or more levels ofcache memories to bridge the rising disparity betweenprocessor and memory speeds. Compression canimprove cache performance by increasing effectivecache capacity and eliminating misses. However,decompressing ...

Alaa R. Alameldeen; David A. Wood

2004-06-01T23:59:59.000Z

451

A case for high performance computing with virtual machines  

Science Conference Proceedings (OSTI)

Virtual machine (VM) technologies are experiencing a resurgence in both industry and research communities. VMs offer many desirable features such as security, ease of management, OS customization, performance isolation, check-pointing, and migration, ...

Wei Huang; Jiuxing Liu; Bulent Abali; Dhabaleswar K. Panda

2006-06-01T23:59:59.000Z

452

An Evaluation of High-Performance Embedded Processing on MPPAs  

Science Conference Proceedings (OSTI)

Embedded signal processing is facing the challenges of increased performance as well as to achieve energy efficiency. Massively parallel processor arrays (MPPAs) consisting of tens or hundreds of processing cores offer the possibility of meeting the ...

Zain-ul-Abdin, Bertil Svensson

2013-04-01T23:59:59.000Z

453

High Performance Computing Systems for Autonomous Spaceborne Missions  

Science Conference Proceedings (OSTI)

Future-generation space missions across the solar system to the planets, moons, asteroids, and comets may someday incorporate supercomputers both to expand the range of missions being conducted and to significantly reduce their cost. By performing science ...

Thomas Sterling; Daniel S. Katz; Larry Bergman

2001-08-01T23:59:59.000Z

454

THE FAILURE OF TCP IN HIGH-PERFORMANCE COMPUTATIONAL GRIDS  

Science Conference Proceedings (OSTI)

Distributed computational grids depend on TCP to ensure reliable end-to-end communication between nodes across the wide-area network (WAN). Unfortunately, TCP performance can be abysmal even when buffers on the end hosts are manually optimized. Recent studies blame the self-similar nature of aggregate network traffic for TCP's poor performance because such traffic is not readily amenable to statistical multiplexing in the Internet, and hence computational grids. In this paper we identify a source of self-similarity previously ignored, a source that is readily controllable--TCP. Via an experimental study, we examine the effects of the TCP stack on network traffic using different implementations of TCP. We show that even when aggregate application traffic ought to smooth out as more applications' traffic are multiplexed, TCP induces burstiness into the aggregate traffic loud, thus adversely impacting network performance. Furthermore, our results indicate that TCP performance will worsen as WAN speeds continue to increase.

W. FENG; ET AL

2000-08-01T23:59:59.000Z

455

Crawlets: Agents for High Performance Web Search Engines  

Science Conference Proceedings (OSTI)

Some of the reasons for unsatisfactory performance of today's search engines are their centralized approach to web crawling and lack of explicit support from web servers. We propose a modification to conventional crawling in which a search engine uploads ...

Prasannaa Thati; Po-Hao Chang; Gul Agha

2001-12-01T23:59:59.000Z

456

Software defined radio a high performance embedded challenge  

Science Conference Proceedings (OSTI)

Wireless communication is one of the most computationally demanding workloads. It is performed by mobile terminals (cell phones) and must be accomplished by a small battery powered system. An important goal of the wireless industry is to ...

Hyunseok Lee; Yuan Lin; Yoav Harel; Mark Woh; Scott Mahlke; Trevor Mudge; Krisztian Flautner

2005-11-01T23:59:59.000Z

457

Moisture and Structural Analysis for High Performance Hybrid Wall Assemblies  

SciTech Connect

This report describes the work conducted by the Building Science Corporation (BSC) Building America Research Team's 'Energy Efficient Housing Research Partnerships' project. Based on past experience in the Building America program, they have found that combinations of materials and approaches---in other words, systems--usually provide optimum performance. No single manufacturer typically provides all of the components for an assembly, nor has the specific understanding of all the individual components necessary for optimum performance.

Grin, A.; Lstiburek, J.

2012-09-01T23:59:59.000Z

458

Moisture and Structural Analysis for High Performance Hybrid Wall Assemblies  

SciTech Connect

This report describes the work conducted by the Building Science Corporation (BSC) Building America Research Team's 'Energy Efficient Housing Research Partnerships' project. Based on past experience in the Building America program, they have found that combinations of materials and approaches---in other words, systems--usually provide optimum performance. No single manufacturer typically provides all of the components for an assembly, nor has the specific understanding of all the individual components necessary for optimum performance.

Grin, A.; Lstiburek, J.

2012-09-01T23:59:59.000Z

459

Participation by Columbia Researchers in Shared Central High Performance Computing (HPC) Resources  

E-Print Network (OSTI)

) to create a shared central high performance computing (HPC) cluster, ColumbiaParticipation by Columbia Researchers in Shared Central High Performance Computing (HPC) Resources Shared Research Computing Policy Advisory Committee (SRCPAC) Chair, Professor

Champagne, Frances A.

460

Investigating the Mobility of Light Autonomous Tracked Vehicles Using a High Performance Computing  

E-Print Network (OSTI)

Investigating the Mobility of Light Autonomous Tracked Vehicles Using a High Performance Computing limiting the scope and impact of high performance computing (HPC). This scenario is rapidly changing due

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


461

Welcome to the EK131 Module entitled High Performance Computing: Bringing Ideas to Life. Basic Information  

E-Print Network (OSTI)

Welcome to the EK131 Module entitled High Performance Computing: Bringing Ideas to Life. Basic and for some selected activities. Most of the time, we will meet in the High Performance Computing Lab (PHO207

Goldberg, Bennett

462

High-Performance Sustainable Building Design for New Construction and Major  

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

Sustainable Buildings & Campuses » Sustainable Buildings & Campuses » High-Performance Sustainable Building Design for New Construction and Major Renovations High-Performance Sustainable Building Design for New Construction and Major Renovations October 4, 2013 - 4:52pm Addthis New construction and major renovations to existing buildings offer Federal agencies opportunities to create sustainable high-performance buildings. High-performance buildings can incorporate energy-efficient designs, sustainable siting and materials, and renewable energy technologies along with other innovative strategies. Also see Guiding Principles for Federal Leadership in High-Performance and Sustainable Buildings. Performance-Based Design Build Typically, architects, engineers, and project managers consider the

463

STRUCTURE AND PERFORMANCE RELATIONSHIP IN HIGH PERFORMANCE LITHIUM ION BATTERY CATHODES.  

E-Print Network (OSTI)

??The goal of this dissertation is to study the structure and performance relationship in cathodes material used in lithium-ion battery applications. In addition, functional materials (more)

Zhu, Pengyu

2013-01-01T23:59:59.000Z

464

Handbook for Planning and Conducting Charrettes for High-Performance Projects: Second Edition  

SciTech Connect

This handbook furnishes guidance for planning and conducting a high-performance building charrette, sometimes called a "greening charrette."

Lindsay, G.; Todd, J. A.; Hayter, S. J.; Ellis, P. G.

2009-09-01T23:59:59.000Z

465

What are the Best HVAC Solutions for Low-Load, High Performance...  

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

What are the Best HVAC Solutions for Low Load, High Performance Homes? www.BuildingScience.com buildingscience.com...

466

Approaches To Crisis Prevention In Lean Product Development By High Performance Teams And Through Risk Management  

E-Print Network (OSTI)

This thesis investigates crisis prevention in lean product development, focusing on high performance teams and risk management methods.

Oehmen, Josef

467

High-performance data centers: A research roadmap  

E-Print Network (OSTI)

planners and implementers of electrical power generation andto accommodate high electrical power consumption, redundantand increase in electrical power caused concern over the

Tschudi, William; Xu, Tengfang; Sartor, Dale; Stein, Jay

2004-01-01T23:59:59.000Z

468

composites for high performance electronic packaging and thermal ...  

Science Conference Proceedings (OSTI)

The applications include; leading edges and engine components for the National Aerospace Plane, radiators for space power, flexible high conductance thermal...

469

Fracturing fluid high-temperature breaker for improving well performance  

Science Conference Proceedings (OSTI)

Oxidative breakers are currently being used in fracturing treatments to reduce polymeric gel damage in high-temperature reservoirs. Dissolved high-temperature oxidative breakers are very reactive at high temperatures (275 to 350 F), typically requiring less than 0.25 lbm/1,000 gal of fluid. Recent introduction of a new nonpersulfate oxidative high-temperature encapsulated breaker (HTEB) provides controlled degradation of the fracturing fluid polymers. Laboratory tests show viscosity reduction and delayed release of active oxidizer breaker. HTEB conductivity data show a two-fold increase in retained permeability at 300 F in a borate-crosslinked fluid system.

McConnell, B.

1994-05-01T23:59:59.000Z

470

High Performance Material & Assemblies for a Sustainable Built ...  

Science Conference Proceedings (OSTI)

Environmental Assessment of Li-CNT Battery Production ... The Production of High-Quality Magnesite Ore Concentrate With Permroll Type Magnetic Separator.

471

High Power Performance Lithium Ion Battery - Energy Innovation Portal  

... Optimization of Acetylene Black Conductive Additive and Polyvinylidene Fluoride Composition for high Power Rechargeable Lithium-Ion Cells, The 211th ...

472

Method for Making Flat, High Performance Thin Membrane ...  

Craig Jacobson, Lutgard DeJonghe, and Steven Visco have invented an improved colloidal deposition technique whereby high-quality films of a wide ...

473

The future of high performance computers in science and engineering  

Science Conference Proceedings (OSTI)

A vast array of new, highly parallel machines are opening up new opportunities for new applications and new ways of computing.

C. Gordon Bell

1989-09-01T23:59:59.000Z

474

A Review of High Occupancy Vehicle (HOV) Lane Performance and...  

Open Energy Info (EERE)

in the United States and explores policy alternatives and effects related to conversion of existing HOV lanes to high occupancy toll lane operations. References Retrieved...

475

Method for Making Flat, High Performance Thin Membrane ...  

For Industry; For Researchers; Success Stories; About Us; ... Inexpensive Production of High Density Thin Ceramic Films on Rigid or Porous Substrates, ...

476

Graphene Oxide as a Sulfur Immobilizer in High Performance ...  

with a high reversible capacity of 950 1400 mA h g 1, and ... network alsoaccommodatesthe volume changeoftheelectrode during the Li S electrochemical ...

477

Flexible, high?performance speech synthesizer using custom NMOS circuitry  

Science Conference Proceedings (OSTI)

A programmable digital signal processor (PDSP) intended primarily for speech synthesis applications has been developed using custom NMOS LSI circuitry. Key features include high speech quality

Jim Caldwell

1978-01-01T23:59:59.000Z

478

Research and Development of High Performance AlN Ceramics  

Science Conference Proceedings (OSTI)

Therefore, AlN has been used for heat dissipative material of high power devices like IGBT (Insulated Gate Bipolar Transistor) and LED (Light Emitting Diode)...

479

Accelerating High-Performance Materials Design: An Integrated ...  

Science Conference Proceedings (OSTI)

Structure/Property Relations in Proton Conducting Ceramics of the Form ... The Impact of Mixed Carbon Feedstock on High Cr2O3 Refractory Liners Used in...

480

Available Technologies: High Power Performance Lithium Ion Battery  

Cell 1, which has the highest binder (PVDF) to acetylene black ratio, displays the most favorable discharge ASI. Lithium ion batteries with high power ...

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


481

NISTIR 6295 Curing of High-Performance Concrete: Report of ...  

Science Conference Proceedings (OSTI)

... High-strength lightweight concreteConcrete produced by using lightweight aggregates, such as expanded clay, shale, and slate aggregates, so ...

1999-05-27T23:59:59.000Z

482

UNIVERSITY OF SOUTHERN CALIFORNIA CSCI 653 (High Performance Computing and Simulations) : Fall 2013  

E-Print Network (OSTI)

UNIVERSITY OF SOUTHERN CALIFORNIA CSCI 653 (High Performance Computing and Simulations) : Fall 2013 Performance Computing and Simulations). My PhD work is in the area of resiliency for future Exascale High. 2 DESCRIPTION OF AN HPCS APPLICATION Simulation of Large Scale High Performance Computing System

Southern California, University of

483

High Performance Computing (HPC) Survey 1. Choose the category that best describes you  

E-Print Network (OSTI)

High Performance Computing (HPC) Survey 1. Choose the category that best describes you Response on your (home or work) computer to access the High Performance Computing Facilities (HPC) - (tick all High Performance Computing (HPC) Facilities? Response Percent Response Count Daily 26.7% 23 Weekly 27

Martin, Stephen John

484

1st International Workshop on High Performance Computing, Networking and Analytics for the Power Grid  

E-Print Network (OSTI)

1st International Workshop on High Performance Computing, Networking and Analytics for the Power Transient Stability" #12;1st International Workshop on High Performance Computing, Networking and Analytics (University of Vermont). "Developing a Dynamic Model of Cascading Failure for High Performance Computing using

485

PRESENT AND FUTURE OF HIGH PERFORMANCE COMPUTING Trends, Challenges, and Opportunities  

E-Print Network (OSTI)

PRESENT AND FUTURE OF HIGH PERFORMANCE COMPUTING Trends, Challenges, and Opportunities November 17 laboratories of the HPC facilities and resources. First, the EPFL high performance computing facilities of Modeling and Simulation through High Performance Computing. Leading research activities of various groups

Ceragioli, Francesca

486

10 January 2009 PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING High Performance Computing in Remote Sensing  

E-Print Network (OSTI)

10 January 2009 PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING High Performance Computing in Remote Book ReviewBook Review High Performance Computing in Remote Sensing introduces the most recent advances in the incorporation of the high-performance computing (HPC) paradigm in remote sensing missions. Eighteen well

Plaza, Antonio J.

487

MAUI HIGH PERFORMANCE COMPUTING CENTER 550 Lipoa Parkway, Kihei-Maui, HI 96753  

E-Print Network (OSTI)

MAUI HIGH PERFORMANCE COMPUTING CENTER i 550 Lipoa Parkway, Kihei-Maui, HI 96753 (808) 879-5077 · Fax: (808) 879-5018 E-mail: info@mhpcc.hpc.mil URL: www.mhpcc.hpc.mil MAUI HIGH PERFORMANCE COMPUTING This is the fourteenth annual edition of Maui High Performance Computing Center's (MHPCC) Application Briefs which

Olsen, Stephen L.

488

The Center for Computational Sciences DOE High Performance Computing Research Center at Oak Ridge National Laboratory  

E-Print Network (OSTI)

1 The Center for Computational Sciences DOE High Performance Computing Research Center at Oak Ridge Sciences DOE High Performance Computing Research Center at Oak Ridge National Laboratory Outline · CCS for Computational Sciences DOE High Performance Computing Research Center at Oak Ridge National Laboratory CCS

489

High performance computing and the simplex method Julian Hall, Qi Huangfu and Edmund Smith  

E-Print Network (OSTI)

High performance computing and the simplex method Julian Hall, Qi Huangfu and Edmund Smith School of Mathematics University of Edinburgh 12th April 2011 High performance computing and the simplex method #12;The... ... but methods for all three depend on it! High performance computing and the simplex method 1 #12;Overview · LP

Hall, Julian