Powered by Deep Web Technologies
Note: This page contains sample records for the topic "whole-house systems approach" 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

Whole-House Systems Approach | Department of Energy  

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

Systems Approach Systems Approach Whole-House Systems Approach April 26, 2012 - 10:17am Addthis The whole-house systems approach used to design this ultra-efficient home at Lone Star Ranch in Frisco, Texas, resulted in a home that consumes no more energy that its renewable energy systems produce. Photo from Building Science Corporation. The whole-house systems approach used to design this ultra-efficient home at Lone Star Ranch in Frisco, Texas, resulted in a home that consumes no more energy that its renewable energy systems produce. Photo from Building Science Corporation. What does this mean for me? Reduced utility and maintenance costs Increased comfort How does it work? Using a whole-house systems approach, it is possible to design and build or renovate a house that produces as much energy as it uses over the course of

2

Advanced Controls for Residential Whole-House Ventilation Systems  

SciTech Connect (OSTI)

Whole-house ventilation systems are becoming commonplace in new construction, remodeling/renovation, and weatherization projects, driven by combinations of specific requirements for indoor air quality (IAQ), health and compliance with standards, such as ASHRAE 62.2. Ventilation systems incur an energy penalty on the home via fan power used to drive the airflow, and the additional space-conditioning load associated with heating or cooling the ventilation air. Finding a balance between IAQ and energy use is important if homes are to be adequately ventilated while not increasing the energy burden. This study used computer simulations to examine RIVEC the Residential Integrated Ventilation Controller - a prototype ventilation controller that aims to deliver whole-house ventilation rates that comply with ventilation standards, for the minimum use of energy. Four different whole-house ventilation systems were simulated, both with and without RIVEC, so that the energy and IAQ results could be compared. Simulations were conducted for 13 US climate zones, three house designs, and three envelope leakage values. The results showed that the RIVEC controller could typically return ventilation energy savings greater than 40percent without compromising long-term chronic or short-term acute exposures to relevant indoor contaminants. Critical and average peak power loads were also reduced as a consequence of using RIVEC.

Turner, William; Walker, Iain; Sherman, Max

2014-08-01T23:59:59.000Z

3

Whole-House Ventilation | Department of Energy  

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

Whole-House Ventilation Whole-House Ventilation Whole-House Ventilation May 30, 2012 - 2:37pm Addthis A whole-house ventilation system with dedicated ducting in a new energy-efficient home. | Photo courtesy of 脗漏iStockphoto/brebca. A whole-house ventilation system with dedicated ducting in a new energy-efficient home. | Photo courtesy of 漏iStockphoto/brebca. What does this mean for me? Whole-house ventilation is critical in an energy-efficient home to maintain adequate indoor air quality and comfort. The whole-house ventilation system you choose will depend upon your climate, budget, and the availability of experienced contractors in your area. Energy-efficient homes -- both new and existing -- require mechanical ventilation to maintain indoor air quality. There are four basic mechanical

4

Building America Residential System Research Results: Achieving 30% Whole House Energy Savings Level in Cold Climates  

SciTech Connect (OSTI)

The Building America program conducts the system research required to reduce risks associated with the design and construction of homes that use an average of 30% to 90% less total energy for all residential energy uses than the Building America Research Benchmark, including research on homes that will use zero net energy on annual basis. To measure the program's progress, annual research milestones have been established for five major climate regions in the United States. The system research activities required to reach each milestone take from 3 to 5 years to complete and include research in individual test houses, studies in pre-production prototypes, and research studies with lead builders that provide early examples that the specified energy savings level can be successfully achieved on a production basis. This report summarizes research results for the 30% energy savings level and demonstrates that lead builders can successfully provide 30% homes in Cold Climates on a cost-neutral basis.

Building Industry Research Alliance (BIRA); Building Science Consortium (BSC); Consortium for Advanced Residential Buildings (CARB); Florida Solar Energy Center (FSEC); IBACOS; National Renewable Energy Laboratory (NREL)

2006-08-01T23:59:59.000Z

5

Building America Whole-House Solutions for New Homes: Affordable...  

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

New Homes: Affordable Cold Climate Infill Housing with Hybrid Insulation Approach Building America Whole-House Solutions for New Homes: Affordable Cold Climate Infill Housing with...

6

Building America Whole-House Solutions for Existing Homes: Multifamily...  

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

Multifamily Individual Heating and Ventilation Systems Building America Whole-House Solutions for Existing Homes: Multifamily Individual Heating and Ventilation Systems The...

7

Building America Whole-House Solutions for New Homes: Affordable Cold Climate Infill Housing with Hybrid Insulation Approach  

Broader source: Energy.gov [DOE]

Affordable Cold Climate Infill Housing with Hybrid Insulation Approach, Wyandotte, Michigan (Fact Sheet), Building America Case Study: Efficient Solutions for New and Existing Homes, Building Technologies Office (BTO)

8

Building America Whole-House Solutions for New Homes: Low-Cost...  

Energy Savers [EERE]

of a whole-house systems integrated measures package and the actual utility usage in the houses at the community scale of production. Five occupants participated in...

9

Building America Whole-House Solutions for Existing Homes: Cascade...  

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

Building America Whole-House Solutions for Existing Homes: Cascade Apartments - Deep Energy Multifamily Retrofit (Fact Sheet) Building America Whole-House Solutions for Existing...

10

Building America Whole-House Solutions for New Homes: Hydronic...  

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

Building America Whole-House Solutions for New Homes: Hydronic Heating Coil Versus Propane Furnace (Fact Sheet) Building America Whole-House Solutions for New Homes: Hydronic...

11

Building America Whole-House Solutions for New Homes: Insight...  

Energy Savers [EERE]

Building America Whole-House Solutions for New Homes: Hydronic Heating Coil Versus Propane Furnace (Fact Sheet) Building America Whole-House Solutions for New Homes: S & A...

12

Cooling with a Whole House Fan | Department of Energy  

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

Cooling with a Whole House Fan Cooling with a Whole House Fan Cooling with a Whole House Fan May 30, 2012 - 6:54pm Addthis Whole house fan installed as part of a home retrofit project in California. | Photo courtesy of Lieko Earle, NREL. Whole house fan installed as part of a home retrofit project in California. | Photo courtesy of Lieko Earle, NREL. What does this mean for me? A whole-house fan may be sufficient to cool your house, at least for part of the year. In many climates, a whole-house fan can save you money and maintain comfort during the cooling season. How does it work? A whole-house fan works by pulling air in through windows and exhausting it through the attic and roof. Whole house cooling using a whole house fan can substitute for an air conditioner most of the year in most climates. Whole house fans combined

13

List of Whole House Fans Incentives | Open Energy Information  

Open Energy Info (EERE)

Whole House Fans Incentives Whole House Fans Incentives Jump to: navigation, search The following contains the list of 26 Whole House Fans Incentives. CSV (rows 1 - 26) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active Alliant Energy Interstate Power and Light (Gas and Electric) - Farm Equipment Energy Efficiency Incentives (Iowa) Utility Rebate Program Iowa Agricultural Agricultural Equipment Ceiling Fan Clothes Washers Custom/Others pending approval Dishwasher Doors Heat recovery Lighting Motor VFDs Motors Refrigerators Water Heaters Windows Whole House Fans Room Air Conditioners Ground Source Heat Pumps Yes Alliant Energy Interstate Power and Light - Farm Equipment Energy Efficiency Incentives (Minnesota) Utility Rebate Program Minnesota Agricultural Agricultural Equipment

14

Building America Whole-House Solutions for New Homes: Challenges...  

Energy Savers [EERE]

of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York Building America Whole-House Solutions for New Homes: Challenges of Achieving 2012 IECC...

15

Building America Whole-House Solutions for Existing Homes: National...  

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

Existing Homes: National Grid Deep Energy Retrofit Pilot, Massachusetts and Rhode Island (Fact Sheet) Building America Whole-House Solutions for Existing Homes: National Grid Deep...

16

Building America Whole-House Solutions for Existing Homes: Applying...  

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

Building America Whole-House Solutions for Existing Homes: Applying Best Practices to Florida Local Government Retrofit Programs - Central Florida (Fact Sheet) Building America...

17

Building America Whole-House Solutions for Existing Homes: Islip...  

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

Islip Housing Authority Energy Efficiency Turnover Protocols, Islip, New York Building America Whole-House Solutions for Existing Homes: Islip Housing Authority Energy Efficiency...

18

Building America Whole-House Solutions for New Homes: Transformations...  

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

Transformations, Inc. Net Zero Energy Communities (Fact Sheet) Building America Whole-House Solutions for New Homes: Transformations, Inc. Net Zero Energy Communities (Fact Sheet)...

19

Building America Whole-House Solutions for New Homes: Nelson...  

Energy Savers [EERE]

Nelson Construction, Farmington, Connecticut Building America Whole-House Solutions for New Homes: Nelson Construction, Farmington, Connecticut Case study of Nelson Construction,...

20

Building America Whole-House Solutions for New Homes: Artistic...  

Energy Savers [EERE]

DOE Zero Energy Ready Home Case Study: Palo Duro Homes, Albuquerque, NM Building America Whole-House Solutions for New Homes: Nelson Construction, Farmington, Connecticut...

Note: This page contains sample records for the topic "whole-house systems approach" 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

Building America Whole-House Solutions for New Homes: Lancaster...  

Energy Savers [EERE]

Lancaster County Career and Technology Center Green Home 3 - Mount Joy, Pennsylvania Building America Whole-House Solutions for New Homes: Lancaster County Career and Technology...

22

Building America Whole-House Solutions for New Homes: Quadrant...  

Energy Savers [EERE]

Quadrant Homes, Kent, Washington Building America Whole-House Solutions for New Homes: Quadrant Homes, Kent, Washington Case study of Quadrant Homes, who worked with Building...

23

Building America Whole-House Solutions for New Homes: Tindall...  

Energy Savers [EERE]

Tindall Homes, Columbus, New Jersey Building America Whole-House Solutions for New Homes: Tindall Homes, Columbus, New Jersey Case study of Tindall Homes who worked with Building...

24

Building America Whole-House Solutions for New Homes: Transformations...  

Energy Savers [EERE]

New Homes: Transformations, Inc. Net Zero Energy Communities (Fact Sheet) Building America Whole-House Solutions for New Homes: Transformations, Inc. Net Zero Energy Communities...

25

Building America Whole-House Solutions for New Homes: Schneider...  

Energy Savers [EERE]

Schneider Homes, Burien, Washington Building America Whole-House Solutions for New Homes: Schneider Homes, Burien, Washington Case study of Schneider Homes who worked with Building...

26

Building America Whole-House Solutions for Existing Homes: Performance...  

Energy Savers [EERE]

of a Hot-Dry Climate Whole-House Retrofit, Stockton, California (Fact Sheet) The Alliance for Residential Building Innovation (ARBI) team conducted a deep retrofit project...

27

Building America Whole-House Solutions for New Homes: Imagine...  

Energy Savers [EERE]

Imagine Homes, San Antonio, Texas Building America Whole-House Solutions for New Homes: Imagine Homes, San Antonio, Texas Case study of Imagine Homes, who worked with the Building...

28

Building America Whole-House Solutions for New Homes: Exterior...  

Energy Savers [EERE]

Exterior Rigid Foam Insulation at the Edge of a Slab Foundation, Fresno, California Building America Whole-House Solutions for New Homes: Exterior Rigid Foam Insulation at the Edge...

29

Building America Whole-House Solutions for Existing Homes: Passive...  

Energy Savers [EERE]

Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California...

30

Building America Whole-House Solutions for New Homes: David Weekely...  

Office of Environmental Management (EM)

TX More Documents & Publications Building America Whole-House Solutions for New Homes: HVAC Design Strategy for a Hot-Humid Production Builder Building America Whole-House...

31

Building Energy Software Tools Directory: EASY: Whole House Energy Audit  

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

EASY: Whole House Energy Audit EASY: Whole House Energy Audit EASY: Whole House Energy Audit logo. Allows auditors to visually draw plans for dwellings that are being audited. Users can place objects such as doors, windows, and other openings, and specify their attributes for calculations. EASY allows users to identify approved measures for specific objects that are included on the drawings. Once generated, the reports may be printed out or viewed on the screen. EASY has been developed to incorporate the latest in Windows technology and software design methodology in order to increase the ability for a lay person without extensive technical training to complete a complex audit with relative ease and with minimal training. EASY accounts for the varied climates, construction styles and building

32

Building America Whole-House Solutions for New Homes: Nexus EnergyHome...  

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

Building America Whole-House Solutions for New Homes: Nexus EnergyHomes - Frederick, Maryland Building America Whole-House Solutions for New Homes: Nexus EnergyHomes - Frederick,...

33

Building America Whole-House Solutions for New Homes: New Town...  

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

Building America Whole-House Solutions for New Homes: New Town Builders' Power of Zero Energy Center Building America Whole-House Solutions for New Homes: New Town Builders' Power...

34

Building America Whole-House Solutions for Existing Homes: 56th...  

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

Building America Whole-House Solutions for Existing Homes: 56th and Walnut: A Philly Gut Rehab Development Building America Whole-House Solutions for Existing Homes: 56th and...

35

Going Deep Green: A Whole House Approach- Lessons Learned  

Broader source: Energy.gov [DOE]

Provides an overview of the SustainableWorks program based in Puget Sound and Spokane, Washington, including lessons learned.

36

Building America Whole-House Solutions for New Homes: Shaw Constructio...  

Energy Savers [EERE]

Shaw Construction, Aspen, Colorado Building America Whole-House Solutions for New Homes: Shaw Construction, Aspen, Colorado Case study of Shaw Construction who worked with Building...

37

Building America Whole-House Solutions for New Homes: The Performance...  

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

Old Greenwich, Connecticut (Fact Sheet) Building America Whole-House Solutions for New Homes: The Performance House: A Cold Climate Challenge Home, Old Greenwich, Connecticut...

38

Building America Whole-House Solutions for New Homes: Rural Developmen...  

Energy Savers [EERE]

triple-pane windows, solar water heating, and PV. Rural Development Inc.: Wisdom Way Solar Village - Greenfield, MA More Documents & Publications Building America Whole-House...

39

Building America Best Practices Series Volume 15: 40% Whole-House...  

Energy Savers [EERE]

More Documents & Publications Building America Whole-House Solutions for New Homes: HVAC Design Strategy for a Hot-Humid Production Builder Building America Technology...

40

Building America Whole-House Solutions for New Homes: John Wesley...  

Energy Savers [EERE]

John Wesley Miller, Tucson, Arizona Building America Whole-House Solutions for New Homes: John Wesley Miller, Tucson, Arizona Case study of John Wesley Miller Companies, who worked...

Note: This page contains sample records for the topic "whole-house systems approach" 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

Building America Whole-House Solutions for New Homes: HVAC Design...  

Energy Savers [EERE]

HVAC Design Strategy for a Hot-Humid Production Builder Building America Whole-House Solutions for New Homes: HVAC Design Strategy for a Hot-Humid Production Builder In this...

42

New Whole-House Solutions Case Study: Quadrant Homes, Kent, WA  

Energy Savers [EERE]

America Case Study Whole-House Solutions for New Homes The ducts are located within open-web trusses between the first and second floors, and for most homes the air handler and...

43

Building America Whole-House Solutions for New Homes: CDC Realty...  

Energy Savers [EERE]

CDC Realty Inc., Tucson, Arizona Building America Whole-House Solutions for New Homes: CDC Realty Inc., Tucson, Arizona Case study of CDC Realty Inc. who worked with Building...

44

PSE&G - Whole House Efficiency Program | Department of Energy  

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

PSE&G - Whole House Efficiency Program PSE&G - Whole House Efficiency Program PSE&G - Whole House Efficiency Program < Back Eligibility Multi-Family Residential Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Home Weatherization Construction Commercial Weatherization Design & Remodeling Other Sealing Your Home Ventilation Heat Pumps Appliances & Electronics Commercial Lighting Lighting Water Heating Program Info Funding Source $36,000,000 State New Jersey Program Type Utility Rebate Program Rebate Amount Central/Ductless Mini-Split AC: $500 Geothermal Heat Pumps: $500 Gas Water Heater: $300 Gas Boiler (Steam): $300 Gas Boiler (Hydronic): $300 Gas Furnace: $400 PSE&G, in concert with New Jersey's Clean Energy Program (NJCEP), provides a range of incentives for new equipment and energy efficiency measures in

45

Building America Whole-House Solutions for Existing Homes: Conway...  

Energy Savers [EERE]

an excellent thermal envelope of closed-cell spray foam and triple-pane windows, ductless heat pumps, solar thermal hot water system, and photovoltaic system. Conway Street...

46

Building America Whole-House Solutions for New Homes: Evluating...  

Energy Savers [EERE]

the bedrooms.The relative ability of this system was considered with respect to relevant Air Conditioning Contractors of America and ASHRAE standards for house temperature...

47

Building America Whole-House Solutions for Existing Homes: Inverted...  

Energy Savers [EERE]

Solutions for Existing Homes: Inverted Attic Bulkhead for HVAC Ductwork This occupied test home received a modified truss system to accommodate ductwork within an inverted...

48

Building America Whole-House Solutions for New Homes: Grupe,...  

Energy Savers [EERE]

Production Builders - Building America Top Innovation High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems; Volume 6 Building America Best Practices Series...

49

Using Whole-House Field Tests to Empirically Derive Moisture Buffering Model Inputs  

SciTech Connect (OSTI)

Building energy simulations can be used to predict a building's interior conditions, along with the energy use associated with keeping these conditions comfortable. These models simulate the loads on the building (e.g., internal gains, envelope heat transfer), determine the operation of the space conditioning equipment, and then calculate the building's temperature and humidity throughout the year. The indoor temperature and humidity are affected not only by the loads and the space conditioning equipment, but also by the capacitance of the building materials, which buffer changes in temperature and humidity. This research developed an empirical method to extract whole-house model inputs for use with a more accurate moisture capacitance model (the effective moisture penetration depth model). The experimental approach was to subject the materials in the house to a square-wave relative humidity profile, measure all of the moisture transfer terms (e.g., infiltration, air conditioner condensate) and calculate the only unmeasured term: the moisture absorption into the materials. After validating the method with laboratory measurements, we performed the tests in a field house. A least-squares fit of an analytical solution to the measured moisture absorption curves was used to determine the three independent model parameters representing the moisture buffering potential of this house and its furnishings. Follow on tests with realistic latent and sensible loads showed good agreement with the derived parameters, especially compared to the commonly-used effective capacitance approach. These results show that the EMPD model, once the inputs are known, is an accurate moisture buffering model.

Woods, J.; Winkler, J.; Christensen, D.; Hancock, E.

2014-08-01T23:59:59.000Z

50

Building America Expert Meeting: Transitioning Traditional HVAC Contractors to Whole House Performance Contractors  

Broader source: Energy.gov [DOE]

This report outlines findings resulting from a U.S. Department of Energy Building America expert meeting held on March 29, 2011 by IBACOS to determine how HVAC companies can transition from a traditional contractor status to a service provider for whole house energy upgrade contracting.

51

New Whole-House Solutions Case Study: Shaw Construction, Aspen...  

Energy Savers [EERE]

condensing gas-fired boilers to provide hot water for the hydronic baseboard heating systems as well as domestic hot water. The domestic hot water is preheated from a solar...

52

Building America Whole-House Solutions for New Homes: Winchester...  

Office of Environmental Management (EM)

to develop a new set of high performance home designs-including advanced wall and HVAC systems-that could be applicable on a production scale. Winchester Homes and Camberley...

53

Improving Comfort in Hot-Humid Climates with a Whole-House Dehumidifier, Windermere, Florida (Fact Sheet)  

SciTech Connect (OSTI)

Maintaining comfort in a home can be challenging in hot-humid climates. At the common summer temperature set point of 75 degrees F, the perceived air temperature can vary by 11 degrees F because higher indoor humidity reduces comfort. Often the air conditioner (AC) thermostat set point is lower than the desirable cooling level to try to increase moisture removal so that the interior air is not humid or "muggy." However, this method is not always effective in maintaining indoor relative humidity (RH) or comfort. In order to quantify the performance of a combined whole-house dehumidifier (WHD) AC system, researchers from the U.S. Department of Energy's Building America team Consortium of Advanced Residential Buildings (CARB) monitored the operation of two Lennox AC systems coupled with a Honeywell DH150 TrueDRY whole-house dehumidifier for a six-month period. By using a WHD to control moisture levels (latent cooling) and optimizing a central AC to control temperature (sensible cooling), improvements in comfort can be achieved while reducing utility costs. Indoor comfort for this study was defined as maintaining indoor conditions at below 60% RH and a humidity ratio of 0.012 lbm/lbm while at common dry bulb set point temperatures of 74 degrees -80 degrees F. In addition to enhanced comfort, controlling moisture to these levels can reduce the risk of other potential issues such as mold growth, pests, and building component degradation. Because a standard AC must also reduce dry bulb air temperature in order to remove moisture, a WHD is typically needed to support these latent loads when sensible heat removal is not desired.

Not Available

2013-11-01T23:59:59.000Z

54

Building America Expert Meeting Report: Transitioning Traditional HVAC Contractors to Whole House Performance Contractors  

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

Transitioning Transitioning Traditional HVAC Contractors to Whole House Performance Contractors Arlan Burdick IBACOS, Inc. October 2011 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation,

55

New Whole-House Solutions Case Study: Tommy Williams Homes, Longleaf...  

Energy Savers [EERE]

uses a system engineering approach to achieve high-performance with off-the-shelf products and many standard building techniques. Walls are 2x4 16-inch on center, but extra...

56

Building America Best Practices Series Volume 15: 40% Whole-House Energy Savings in the Hot-Humid Climate  

Broader source: Energy.gov [DOE]

This guide book is a resource to help builders design and construct highly energy-efficient homes, while addressing building durability, indoor air quality, and occupant health, safety, and comfort. With the measures described in this guide, builders in the hot-humid climate can build homes that achieve whole house energy savings of 40% over the Building America benchmark (the 1993 Model Energy Code) with no added overall costs for consumers.

57

Building America Best Practices Series Volume 16: 40% Whole-House Energy Savings in the Mixed-Humid Climate  

Broader source: Energy.gov [DOE]

This guide book is a resource to help builders design and construct highly energy-efficient homes, while addressing building durability, indoor air quality, and occupant health, safety, and comfort. With the measures described in this guide, builders in the mixed-humid climate can build homes that achieve whole house energy savings of 40% over the Building America benchmark (the 1993 Model Energy Code) with no added overall costs for consumers.

58

Building America Whole-House Solutions for New Homes: Quadrant Homes, Kent, Washington  

Broader source: Energy.gov [DOE]

Case study of Quadrant Homes, who worked with Building America partner WSU Energy Extension to design HERS-65 homes with ducts in conditioned space; 2x6 factory-built walls; and systems-engineered streamlined construction.

59

New Whole-House Solutions Case Study: S&A Homes; Pittsburgh,...  

Energy Savers [EERE]

HVAC system with a compact duct design that kept all ducts in conditioned space. Open-web floor trusses between the basement and first floors provided a path for ducts within...

60

Building America Whole-House Solutions for Existing Homes: Inverted Attic Bulkhead for HVAC Ductwork  

Broader source: Energy.gov [DOE]

This occupied test home received a modified truss system to accommodate ductwork within an inverted insulated bulkhead along the attic floor, which saves energy by placing heating, ventilating, and air-conditioning (HVAC) ductwork within the home's thermal boundary.

Note: This page contains sample records for the topic "whole-house systems approach" 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

New Whole-House Solutions Case Study: Imagine Homes, San Antonio...  

Energy Savers [EERE]

every house they build. KEY ENERGY-EFFICIENCY MEASURES HVAC: * 92% AFUE natural gas-fired furnace; 15 SEER split-system AC unit * Sheet metal trunk and R-6 flex duct branches...

62

Building America Whole-House Solutions for Existing Homes: Conway Street Apartments- Greenfield, Massachusetts  

Broader source: Energy.gov [DOE]

Through recent research efforts, CARB has been evaluating strategies and technologies that can make dramatic improvements in energy performance in multifamily buildings. In this project, the team helped to transform a 100-year-old empty school building into 12 high performance apartments with low energy costs. The advanced features included an excellent thermal envelope of closed-cell spray foam and triple-pane windows, ductless heat pumps, solar thermal hot water system, and photovoltaic system.

63

Advanced Envelope Research for Factory Built Housing, Phase 3 -- Whole-House Prototyping  

SciTech Connect (OSTI)

The Advanced Envelope Research effort will provide factory homebuilders with high performance, cost-effective envelope designs that can be effectively integrated into the plant production process while meeting the thermal requirements of the 2012 IECC standards. Given the affordable nature of manufactured homes, impact on first cost is a major consideration in developing new envelope technologies. This work is part of a multi-phase effort. Phase 1 identified seven envelope technologies and provided a preliminary assessment of three methods for building high performance walls. Phase 2 focused on developing viable product designs, manufacturing strategies, addressing code and structural issues, and cost analysis of the three selected options. An industry advisory committee helped narrow the research focus to perfecting a stud wall design with exterior continuous insulation (CI). Phase 3, completed in two stages, continued the design development effort, exploring and evaluating a range or methods for applying CI to factory built homes. The scope also included material selection, manufacturing and cost analysis, and prototyping and testing. During this phase, a home was built with CI, evaluated, and placed in service. The experience of building a mock up wall section with CI and then constructing on line a prototype home resolved important concerns about how to integrate the material into the production process. First steps were taken toward finding least expensive approaches for incorporating CI in standard factory building practices and a preliminary assessment suggested that even at this early stage the technology is attractive when viewed from a life cycle cost perspective.

Levy, E.; Mullens, M.; Rath, P.

2014-04-01T23:59:59.000Z

64

Performance of a Hot-Dry Climate Whole-House Retrofit  

SciTech Connect (OSTI)

The Stockton house retrofit is a two-story tudor style single family deep retrofit in the hot-dry climate of Stockton, CA. The home is representative of a deep retrofit option of the scaled home energy upgrade packages offered to targeted neighborhoods under the pilot Large-Scale Retrofit Program (LSRP) administered by the Alliance for Residential Building Innovation (ARBI). Deep retrofit packages expand on the standard package by adding HVAC, water heater and window upgrades to the ducting, attic and floor insulation, domestic hot water insulation, envelope sealing, lighting and ventilation upgrades. Site energy savings with the deep retrofit were 23% compared to the pre-retrofit case, and 15% higher than the savings estimated for the standard retrofit package. Energy savings were largely a result of the water heater upgrade, and a combination of the envelope sealing, insulation and HVAC upgrade. The HVAC system was of higher efficiency than the building code standard. Overall the financed retrofit would have been more cost effective had a less expensive HVAC system been selected and barriers to wall insulation remedied. The homeowner experienced improved comfort throughout the monitored period and was satisfied with the resulting utility bill savings.

Weitzel, E.; German, A.; Porse, E.

2014-06-01T23:59:59.000Z

65

Predictive ecology: systems approaches  

Science Journals Connector (OSTI)

...the fluidity of science. Q. Rev. Biol...need for systems approaches. Phil. Trans...Ecology and resource management: a quantitative approach. New York, NY...to develop the science of ecoinformatics along with approaches specific to ecological...

2012-01-01T23:59:59.000Z

66

Advanced Controls and Sustainable Systems for Residential Ventilation  

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

Advanced Controls and Sustainable Systems for Residential Ventilation Advanced Controls and Sustainable Systems for Residential Ventilation Title Advanced Controls and Sustainable Systems for Residential Ventilation Publication Type Report LBNL Report Number LBNL-5968E Year of Publication 2012 Authors Turner, William J. N., and Iain S. Walker Date Published 12/2012 Keywords ashrae standard 62,2, california title 24, passive ventilation, residential ventilation, ventilation controller Abstract Whole-house ventilation systems are becoming commonplace in new construction, remodeling/renovation, and weatherization projects, driven by combinations of specific requirements for indoor air quality (IAQ), health, and compliance with standards, such as ASHRAE 62.2. At the same time we wish to reduce the energy use in homes and therefore minimize the energy used to provide ventilation. This study examined several approaches to reducing the energy requirements of providing acceptable IAQ in residential buildings. Two approaches were taken. The first used RIVEC - the Residential Integrated VEntilation Controller - a prototype ventilation controller that aims to deliver whole-house ventilation rates that comply with ventilation standards, for the minimum use of energy. The second used passive and hybrid ventilation systems, rather than mechanical systems, to provide whole-house ventilation.

67

Building America Whole-House Solutions for New Homes: Hydronic Heating Coil Versus Propane Furnace (Fact Sheet)  

Broader source: Energy.gov [DOE]

In this project involving two homes, the IBACOS team evaluated the performance of the two space conditioning systems and the modeled efficiency of the two tankless domestic hot water systems relative to actual occupant use.

68

Building America Whole-House Solutions for New Homes: HVAC Design Strategy for a Hot-Humid Production Builder  

Broader source: Energy.gov [DOE]

In this project, BSC worked with the builder to develop a cost-effective design for moving the HVAC system into conditioned space and increase the energy performance of future production houses in anticipation of 2015 IECC codes.

69

Building America Whole-House Solutions for New Homes: Winchester Homes and Camberly Homes- Silver Spring, Maryland (Fact Sheet)  

Broader source: Energy.gov [DOE]

The Partnership for Home Innovation team worked with the builder to develop a new set of high performance home designs梚ncluding advanced wall and HVAC systems梩hat could be applicable on a...

70

Building America Whole-House Solutions for New Homes: Evluating Through-Wall Air Transfer Fans, Pittburgh, Pennsylvania  

Broader source: Energy.gov [DOE]

In this project, Building America team IBACOS performed field testing in a new construction unoccupied test house in Pittsburgh, Pennsylvania to evaluate HVAC distribution systems during heating, cooling, and midseason conditions.

71

Building America Case Study: Performance of a Hot-Dry Climate Whole House Retrofit, Stockton, California (Fact Sheet)  

SciTech Connect (OSTI)

The Stockton house retrofit is a two-story tudor style single family deep retrofit in the hot-dry climate of Stockton, CA. The home is representative of a deep retrofit option of the scaled home energy upgrade packages offered to targeted neighborhoods under the pilot Large-Scale Retrofit Program (LSRP) administered by the Alliance for Residential Building Innovation (ARBI). Deep retrofit packages expand on the standard package by adding HVAC, water heater and window upgrades to the ducting, attic and floor insulation, domestic hot water insulation, envelope sealing, lighting and ventilation upgrades. Site energy savings with the deep retrofit were 23% compared to the pre-retrofit case, and 15% higher than the savings estimated for the standard retrofit package. Energy savings were largely a result of the water heater upgrade, and a combination of the envelope sealing, insulation and HVAC upgrade. The HVAC system was of higher efficiency than the building code standard. Overall the financed retrofit would have been more cost effective had a less expensive HVAC system been selected and barriers to wall insulation remedied. The homeowner experienced improved comfort throughout the monitored period and was satisfied with the resulting utility bill savings.

ARBI

2014-09-01T23:59:59.000Z

72

Systems biology approach to bioremediation  

E-Print Network [OSTI]

aspects of the systems biology approach (metagenomics withthe use of a number of sytems biology parameters can revealRL, Banfield JF: Systems Biology: functional analysis of

Chakraborty, R.

2013-01-01T23:59:59.000Z

73

Arnold Schwarzenegger WHOLE HOUSE CONTRACTING  

E-Print Network [OSTI]

on the following RD&D program areas: 路 Buildings EndUse Energy Efficiency 路 Energy Innovations Small Grants Advanced Generation 路 Industrial/Agricultural/Water EndUse Energy Efficiency 路 Renewable EnergyKnight, Inc. The information from this project contributes to PIER's Building EndUse Energy Efficiency

74

Arnold Schwarzenegger WHOLE HOUSE CONTRACTING  

E-Print Network [OSTI]

End-Use Team Leader Daryl Mills Energy Efficiency Research Office Manager Martha Krebs Deputy Director RD&D program areas: 路 Buildings EndUse Energy Efficiency 路 Energy Innovations Small Grants Advanced Generation 路 Industrial/Agricultural/Water EndUse Energy Efficiency 路 Renewable Energy

75

Building America Whole-House Solutions for Existing Homes: Pilot Demonstration of Phased Retrofits in Florida Homes- Central and South Florida (Fact Sheet)  

Broader source: Energy.gov [DOE]

In this project, the Florida Solar Energy Center and Florida Power and Light are collaborating to retrofit a large number of homes using a phased approach to both simple and deep retrofits.

76

Essential Systems Functionality Inspection Criteria, Approach...  

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

Essential Systems Functionality Inspection Criteria, Approach, and Lines of Inquiry, October 16, 2008 (HSS CRAD 64-11 Rev. 2) Essential Systems Functionality Inspection Criteria,...

77

THE BIG PICTURE: A "FISHERY SYSTEM APPROACH"  

E-Print Network [OSTI]

fishery management, with biodiversity an aspect of marine conservation that has received little attentionTHE BIG PICTURE: A "FISHERY SYSTEM APPROACH" LINKS FISHERY MANAGEMENT AND BIODIVERSITY Anthony Canada Email: t.charles@smu.ca Keywords : Fishery Management, Biodiversity, Fishery System Approach

Charles, Anthony

78

Utility System Simulation: A Nonlinear Approach  

E-Print Network [OSTI]

UTILITY SYSTEM SIMULATION: A NONLINEAR APPROACH STEPHEN R. DELK, P.E. Owner The MESA Company The Woodlands, Texas ABSTRACT Computer simulation of plant utility systems allows an engineer to rapidly I) analyze operation changes, 2...) analyze design changes, and 3) optimize the steam/electric system for the lowest operating cost. MESA (Modular Energy System Analyzer) is a PC-based computer program that can be configured to accurately simulate plant utility systems. MESA uses a...

Delk, S. R.

79

Advanced Methods Approach to Hybrid Powertrain Systems Optimization...  

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

Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus Application Advanced Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus...

80

A Systems Approach to Managing Oil  

E-Print Network [OSTI]

A Systems Approach to Managing Oil Transportation Risk in Prince William Sound Jason R. W. Merrick Received April 21, 2000; revised June 12, 2000; accepted June 26, 2000MANAGING OIL TRANSPORTATION RISK about the safety of oil transportation in the Prince William Sound, Alaska. As a result, a large number

van Dorp, Johan Ren茅

Note: This page contains sample records for the topic "whole-house systems approach" 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

Modern Data Processing for Management: a basic systems approach  

Science Journals Connector (OSTI)

......Modern Data Processing for Management: a basic systems approach J. O. Jenkins (London...Modern Data Processing for Management: a basic systems approach, by B. A. Hodson...Principles or Computer Science must approach the subject......

J. O. Jenkins

1974-11-01T23:59:59.000Z

82

House-as-a-System Business Case- Building America Top Innovations  

Broader source: Energy.gov [DOE]

Top Innovations in this category include profiles of Building America field research projects with production builders who have used a whole-house approach to achieve exceptional energy efficiency, comfort, and durability. These examples demonstrate that constructing high-performance homes make economic sense梖or the builder, the consumer, the real estate professional, and the environment.

83

Systems approaches in global change and biogeochemistry research  

Science Journals Connector (OSTI)

...specialists took a systems approach to examine ecosystem...multi-disciplinary approaches are becoming ever more...By improving land management technology, SOC stocks...characteristics of systems science (e.g. inter-disciplinary...through adopting systems approaches; indeed, many of the...

2012-01-01T23:59:59.000Z

84

System Optimization - The Global Approach to HVAC Control  

E-Print Network [OSTI]

System Optimization is a new approach to HVAC control as implemented by Energy Management Control Systems. System Optimization is defined as electronic building control strategies which treat a building's HVAC components as a complete energy...

Thielman, D. E.

1984-01-01T23:59:59.000Z

85

Systems Approaches and CommunitySystems Approaches and Community Approaches for Coastal PlanningApproaches for Coastal Planning  

E-Print Network [OSTI]

and Communities 路 Social/Economic/Cultural Environment 路 The Resource Management System: 路 Policy and Planning 路 Integrated Coastal Management 路 Development and Research #12;External Environment Policy and Planning Resource Management Resource Development Resource Research NATURAL ECOSYSTEM Community MANAGEMENT SYSTEM

Charles, Anthony

86

A system theoretic approach to design safety into medical device  

E-Print Network [OSTI]

The goal of this thesis is to investigate and demonstrate the application of a systems approach to medical device safety in China. Professor Leveson has developed an accident modeling framework called STAMP (Systems Theoretic ...

Song, Qingyang S.M. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

87

Concurrent and Real Time Systems: the CSP approach Steve Schneider  

E-Print Network [OSTI]

Concurrent and Real Time Systems: the CSP approach by Steve Schneider First published 1999 Systems the CSP approach Steve Schneider A Wiley-Interscience Publication JOHN WILEY & SONS, INC. New York Whitehead This book provides an introduction to Communicating Sequential Processes (CSP) and its use

Doran, Simon J.

88

Viable System Model approach for holonic product-driven manufacturing systems  

E-Print Network [OSTI]

Viable System Model approach for holonic product-driven manufacturing systems Carlos Herrera , Sana Control Systems (PDCS) dealing with production planning and control. The framework is based on Viable approach. Keywords: Product-driven systems, intelligent manufacturing systems, viable system model

Boyer, Edmond

89

Materials, Modules, and Systems: An Atoms to Autos Approach to Automotive Thermoelectric Systems Development  

Broader source: Energy.gov [DOE]

Highlights comprehensive approach tothermoelectric materials, module, and systems development at GM and in collaboration with our R&D partners

90

Hadrodynamic approach to compressible nonuniform nuclear systems  

Science Journals Connector (OSTI)

The energy-momentum tensor for isospin-symmetric semi-infinite nuclear matter (SINM) as well as for finite spherically symmetric nuclei is evaluated in the relativistic Thomas-Fermi (RTF) approximation of the ?-? model. The T33 stress tensor component of self-bound SINM vanishes identically. Our field theoretical RTF approach reflects the elementary relation p=2 ?/R between the bulk pressure p, the surface tension ? and the radius R of a nucleus. 1996 The American Physical Society.

T. v. Chossy and W. Stocker

1996-08-01T23:59:59.000Z

91

Essential Systems Functionality Inspection Criteria, Approach, and Lines of  

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

Essential Systems Functionality Inspection Criteria, Approach, and Essential Systems Functionality Inspection Criteria, Approach, and Lines of Inquiry, October 16, 2008 (HSS CRAD 64-11 Rev. 2) Essential Systems Functionality Inspection Criteria, Approach, and Lines of Inquiry, October 16, 2008 (HSS CRAD 64-11 Rev. 2) The Essential Systems Functionality (ESF) inspection will evaluate the effectiveness of programs and processes for engineering design and safety basis, construction and installation, configuration management, surveillance testing, maintenance, operations, cognizant system engineer (CSE) and safety system oversight (SSO), and feedback and improvement of selected safety systems. This review will evaluate the effectiveness in maintaining the functionality of these safety systems. The ESF review will be performed in the context of integrated safety management (ISM), although

92

Substation reliability -- Practical application and system approach  

SciTech Connect (OSTI)

Practical application of reliability analysis was made for the comparison of alternate line and bus arrangements of a future transmission substation with potential savings of up to $3.6 M. The paper describes how both the substation and the power system were simulated by using computer programs STAREL and COMREL. It presents the method used to obtain the most accurate estimates for the outage data of the system components. Finally, it expresses the results with simple reliability indices which can be meaningful for management. The results of the study show the need to include the reliability of the transmission system in a substation reliability evaluation.

Save, P. [Southern California Edison Co., Rosemead, CA (United States)] [Southern California Edison Co., Rosemead, CA (United States)

1995-02-01T23:59:59.000Z

93

Substation reliability -- Practical application and system approach  

SciTech Connect (OSTI)

Practical application of reliability analysis was made for the comparison of alternate line and bus arrangements of a future transmission substation with potential savings of up to 53.6 M. The paper describes how both the substation and the power system were simulated by using computer programs STAREL and COMREL. It presents the method used to obtain the most accurate estimates for the outage data of the system components. Finally, it expresses the results with simple reliability indices which can be meaningful for management. The results of the study show the need to include the reliability of the transmission system in a substation reliability evaluation.

Save, P. [Southern California Edison Co., Rosemead, CA (United States)

1994-12-31T23:59:59.000Z

94

A synthetic DNA based approach to design of adaptive systems  

Science Journals Connector (OSTI)

Development of large engineered systems involves large amount of investments. Yet the value of these systems decreases significantly as requirements and environments change. For mission critical systems the capability of adapting to unpredictable situations is the key for success. While the importance of system adaptability has been recognized, little research has been done for 揹esign for adaptability. We take a 搉aturalistic design approach to developing adaptive 搇ifelike systems by exploiting natural 揹esign processes and mimicking its DNA based way of capturing, representing and applying 揹esign information pertaining to needed functions and changing operational situations. The concepts and examples of this approach are discussed.

Y. Jin; G.E. Zouein; S.C.-Y. Lu

2009-01-01T23:59:59.000Z

95

An Architectural Approach for Integrated Network and Systems Management  

E-Print Network [OSTI]

An Architectural Approach for Integrated Network and Systems Management Raouf Boutaba 1 and Simon introduce an architecture for the integrated management of all resources in a networked system, i that the networked system environment and its management tasks are appropriately structured. Therefore, we have

Boutaba, Raouf

96

XML ACCESS CONTROL SYSTEMS: A COMPONENT-BASED APPROACH  

E-Print Network [OSTI]

the characteristics of XML documents, allowing the definition of access control policies that operate with a fine to the integration of the access control system with Web based systems. #12;The analysis contained in this paperCHAPTER 4 XML ACCESS CONTROL SYSTEMS: A COMPONENT-BASED APPROACH E. Damiani1 S. De Capitani di

Samarati, Pierangela

97

Scaling of Health Information Systems in India: Challenges and Approaches  

E-Print Network [OSTI]

on experiences from an ongoing project to implement health information systems within the primary health care in the context of health care and health information systems (HIS) in developing countries, whichScaling of Health Information Systems in India: Challenges and Approaches Sundeep Sahay Information

Sahay, Sundeep

98

Disruptions in Interdependent Infrastructure Systems: A Network Flows Approach1  

E-Print Network [OSTI]

1 Disruptions in Interdependent Infrastructure Systems: A Network Flows Approach1 John E. Mitchell infrastructure systems, such as transportation, energy, telecommunications and water. Clearly, disruption of any in order to provide services, such as power delivery, voice and data transmission. Each system's components

Mitchell, John E.

99

Integrated approaches to the optimal design of multiscale systems  

E-Print Network [OSTI]

This work is aimed at development of systematic approaches to the design of multiscale systems. Specifically four problems are addressed: environmental impact assessment (EIA) of new and retrofitted industrial processes, integration of process...

Lovelady, Eva Marie

2009-05-15T23:59:59.000Z

100

Practical Approach to Water System Optimal Operation  

Science Journals Connector (OSTI)

Abstract Optimal pump scheduling is a major consideration when dealing with minimizing operational costs of a water distribution system. Pump operation must balance between three factors. Water balance constraints, including consumer demand and water tank volumes. Hydraulic constraints determining water pump operating point. Electrical tariff rate effecting energy cost. Optimization models may assume linear or discrete pump operation, depending on type and accuracy of the model in use. Linear operation assumes the pump may operate during part of the time step while discrete operation requires the pump to be either on or off during the entire time step. Linear optimization models commonly have short solution times, but cannot contain non-linear constraints such as hydraulic headloss. By such, linear model results may be difficult to implement in a real water system as the hydraulic behavior of the system may render the optimal solution impractical. Likewise, if the pump operation partially uses the time step the pump may be forced to come in and out of duty often causing mechanical ware and tare. Discrete operation provides smooth pump operation and may contain non-linear hydraulic constraint to calculate a more realistic working point for the pump. Discrete models have long solution times due the vast amount of pump operating combinations, which must be explored. Heuristic techniques may be used to shorten solution times but these do not assure global minimization of the solution. The goal of the research is to create a minimum cost optimal operation water distribution system model that utilizes the short solution time of a linear model but also includes non-linear hydraulic constraints effecting pump energy consumption and discrete pump operation. The motivation is to use the model for real-time pump scheduling and for water system design.

E. Price; A. Ostfeld

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "whole-house systems approach" 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

Biofuels, Land, and Water: A Systems Approach to Sustainability  

Science Journals Connector (OSTI)

Biofuels, Land, and Water: A Systems Approach to Sustainability ... This study presents a systems approach to the challenge of biofuel sustainability where environmental liabilities are used as recoverable resources for biomass feedstock production. ... There are suggestions that water quantity and quality impacts are likely to be significant as a result of increased biofuel production, especially when grain-based biofuels are the feedstock of choice (16, 17). ...

Gayathri Gopalakrishnan; M. Cristina Negri; Michael Wang; May Wu; Seth W. Snyder; Lorraine LaFreniere

2009-07-07T23:59:59.000Z

102

An Investigation of the Complex Motions Inherent to Machining Systems via a Discontinuous Systems Theory Approach  

E-Print Network [OSTI]

AN INVESTIGATION OF THE COMPLEX MOTIONS INHERENT TO MACHINING SYSTEMS VIA A DISCONTINUOUS SYSTEMS THEORY APPROACH A Dissertation by BRANDON CHRISTOPHER GEGG Submitted to the Office of Graduate Studies... SYSTEMS VIA A DISCONTINUOUS SYSTEMS THEORY APPROACH A Dissertation by BRANDON CHRISTOPHER GEGG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree...

Gegg, Brandon C.

2010-07-14T23:59:59.000Z

103

Building America Whole-House Solutions for Existing Homes: Evaluation...  

Energy Savers [EERE]

Ordinance. Evaluation of a Multifamily Retrofit in Climate Zone 5 - Boulder, Colorado More Documents & Publications Building America Expert Meeting: Retrofit...

104

Building America Whole-House Solutions for New Homes: Winchester...  

Energy Savers [EERE]

Camberley Homes worked with Partnership for Home Innovation team to develop and test a new set of high performance homes designs and techniques that could be applied on a...

105

Building America Whole-House Solutions for New Homes: Meeting...  

Energy Savers [EERE]

America team Building Science Corporation to evaluate the certification of five test homes to the new DOE Challenge Home program performance standard (now DOE Zero Energy...

106

Buildng America Whole-House Solutions for New Homes: William...  

Energy Savers [EERE]

with Building America research partner CARB to design HERS-65 homes with energy-efficient heat pumps and programmable thermostats with humidity controls, foam-filled concrete block...

107

Building America Whole-House Solutions for New Homes: Devoted...  

Energy Savers [EERE]

Energy Office to design HERS-54 duplexes with ICF walls, high-efficiency mini-split heat pumps, ERVs, and a spray-foam plus blown cellulose covered ceiling deck. Devoted...

108

Building America Whole-House Solutions for New Homes: Urbane...  

Energy Savers [EERE]

rigid foam insulated slabs and foundation walls, advanced framed walls, high-efficiency heat pumps, and ducts in conditioned space. Urbane Homes - Louisville, KY More Documents &...

109

Building America Whole-House Solutions for Existing Homes: Community...  

Energy Savers [EERE]

energy use. To that end, IBACOS analyzed pre-retrofit daily utility data to sort homes by energy consumption, allowing for better targeting of homes for physical audits. Following...

110

New Whole-House Solutions Case Study: Rural Development Inc....  

Energy Savers [EERE]

nearly 2,200 per year. The solar electricity produced by rooftop PV yielded negative electric bills in the first six months of occupancy (Nov 2009-April 2010). Blown-cellulose was...

111

Building America Whole-House Solutions for New Homes: Treasure...  

Office of Environmental Management (EM)

who worked with SMUD, DOE, NREL, and ConSol to build HERS-54 homes with high-efficiency HVAC, ducts buried in attic insulation, SmartVent cooling, and rooftop PV. Treasure Homes:...

112

New Whole-House Solutions Case Study: Treasure Homes, Sacramento...  

Energy Savers [EERE]

smaller plumbing pipes add to water savings. The homes are equipped with energy-efficient light fixtures. ENERGY STAR appliances contribute to utility bill savings. Treasure Homes...

113

Building America Whole-House Solutions for Existing Homes: Pilot...  

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

Florida Homes - Central and South Florida (Fact Sheet) In this pilot project, the Florida Solar Energy Center and Florida Power and Light are collaborating to retrofit a large...

114

New Whole-House Solutions Case Study: Schneider Homes, Inc.,...  

Energy Savers [EERE]

air sealed according to the EPA thermal bypass checklist. Contractors caulked all mechanical penetrations, foamed the bottom and top plates of the walls, and used air-sealing...

115

New Whole-House Solutions Case Study: Artistic Homes, Albuquerque...  

Energy Savers [EERE]

homebuyers can compare," said Wade. * Techniques like the location of the air handler and furnace in the home's conditioned space, timed ventilation with a fresh air intake,...

116

New Whole-House Solutions Case Study: Grupe Carsten Crossings...  

Energy Savers [EERE]

a row of concrete roofing tiles. Rather than sitting on top of the roof like traditional solar panels, these integrated solar tiles are used in place of some of the roofing tiles,...

117

State approaches to the system benefits charge  

SciTech Connect (OSTI)

This report documents the consideration and implementation of a non-bypassable system benefits charge (SBC) in six states through mid-May 1997. The SBC is being established to sustain important public-policy programs during the electric industry restructuring process. The states covered include Arizona, California, Massachusetts, New York, Rhode Island, and Wisconsin. This report was prepared for the Office of Energy and Resource Planning, Utah Department of Natural Resources, under the National Renewable Energy Laboratory`s Sustainable Technology Energy Partnerships Initiative, Second Round (STEP-2). The purpose of the report is to provide decision makers in Utah, including the Utah Public Service Commission and the state legislature, with relevant information on the SBC for use in their deliberation on the matter. The issues faced by the six states are the SBC in general; surcharge rate or funding levels; administrative structure and procedures; and actions, guidelines, and principles by program area.

Fang, J.M.

1997-07-01T23:59:59.000Z

118

A Qualitative Event-based Approach to Continuous Systems Diagnosis  

E-Print Network [OSTI]

of the Advanced Diagnostics and Prognostics Testbed, which is representative of a spacecraft's electrical power and noise levels. Index Terms--model-based diagnosis, discrete-event systems, electrical power systems I avoided. Diagnosis approaches can be categorized along several dimensions, such as model- based vs. signal

Daigle, Matthew

119

Cognitive Modeling Carsten Pfeffer Dynamical Systems Approaches to  

E-Print Network [OSTI]

Cognitive Modeling Carsten Pfeffer Dynamical Systems Approaches to Cognition Carsten Pfeffer Universit盲t Bremen December 1st, 2014 December 1st, 2014 1/30 #12;Cognitive Modeling Carsten Pfeffer Introduction Physical Symbol Systems December 1st, 2014 2/30 #12;Cognitive Modeling Carsten Pfeffer

Bremen, Universit盲t

120

Total System Performance Assessment - License Application Methods and Approach  

SciTech Connect (OSTI)

''Total System Performance Assessment-License Application (TSPA-LA) Methods and Approach'' provides the top-level method and approach for conducting the TSPA-LA model development and analyses. The method and approach is responsive to the criteria set forth in Total System Performance Assessment Integration (TSPAI) Key Technical Issues (KTIs) identified in agreements with the U.S. Nuclear Regulatory Commission, the ''Yucca Mountain Review Plan'' (YMRP), ''Final Report'' (NRC 2003 [163274]), and the NRC final rule 10 CFR Part 63 (NRC 2002 [156605]). This introductory section provides an overview of the TSPA-LA, the projected TSPA-LA documentation structure, and the goals of the document. It also provides a brief discussion of the regulatory framework, the approach to risk management of the development and analysis of the model, and the overall organization of the document. The section closes with some important conventions that are used in this document.

J. McNeish

2003-12-08T23:59:59.000Z

Note: This page contains sample records for the topic "whole-house systems approach" 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

One IBM Plant's Approach to Automated Control System Standards  

E-Print Network [OSTI]

ONE IBM PLANT'S APPROACH"TO AUTOMATED CONTROL SYSTEM STANDARDS John P. Cilia International Business Machines Corporation Poughkeepsie, New York ABSTRACT INSTRUMENTATION STANDARDS The trend toward lower cost of new technologies in building... Facilities Automation Control System (IPDFACS) standards used in the bidding process, the philosophy behind them, the type of instrumentation specified to be installed, and how to maintain this complex DDDC system. INTRODUCTION The lower cost of chips...

Cilia, J. P.

122

An approach for assessing ALWR passive safety system reliability  

SciTech Connect (OSTI)

Many advanced light water reactor designs incorporate passive rather than active safety features for front-line accident response. A method for evaluating the reliability of these passive systems in the context of probabilistic risk assessment has been developed at Sandia National Laboratories. This method addresses both the component (e.g. valve) failure aspect of passive system failure, and uncertainties in system success criteria arising from uncertainties in the system's underlying physical processes. These processes provide the system's driving force; examples are natural circulation and gravity-induced injection. This paper describes the method, and provides some preliminary results of application of the approach to the Westinghouse AP600 design.

Hake, T M

1991-01-01T23:59:59.000Z

123

A Systems Integration Approach To Lighting Control Systems  

E-Print Network [OSTI]

and office placement with control tools to harvest natural light. Other technologies under development seek to achieve the seamless integration of lighting controls with other building systems. Here, the rewards can be rich, with increased energy savings...

Lynch, S.; Renner, R. A.

2000-01-01T23:59:59.000Z

124

Hybrid approach to failure prediction for advanced computing systems |  

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

Hybrid approach to failure prediction for advanced computing systems Hybrid approach to failure prediction for advanced computing systems January 8, 2014 Tweet EmailPrint "Fault tolerance is no longer an option but a necessity," states Franck Cappello, project manager of research on resilience at the extreme scale at Argonne National Laboratory. "And the ability to reliably predict failures can significantly reduce the overhead of fault-tolerance strategies and the recovery cost." In a special issue article in the International Journal of High Performance Computing Applications, Cappello and his colleagues at Argonne and the University of Illinois at Urbana-Champaign (UIUC) discuss issues in failure prediction and present a new hybrid approach to overcome the limitations of current models. One popular way of building prediction models is to analyze log files,

125

Novel Approach to Linear Accelerator Superconducting Magnet System  

SciTech Connect (OSTI)

Superconducting Linear Accelerators include a superconducting magnet system for particle beam transportation that provides the beam focusing and steering. This system consists of a large number of quadrupole magnets and dipole correctors mounted inside or between cryomodules with SCRF cavities. Each magnet has current leads and powered from its own power supply. The paper proposes a novel approach to magnet powering based on using superconducting persistent current switches. A group of magnets is powered from the same power supply through the common, for the group of cryomodules, electrical bus and pair of current leads. Superconducting switches direct the current to the chosen magnet and close the circuit providing the magnet operation in a persistent current mode. Two persistent current switches were fabricated and tested. In the paper also presented the results of magnetic field simulations, decay time constants analysis, and a way of improving quadrupole magnetic center stability. Such approach substantially reduces the magnet system cost and increases the reliability.

Kashikhin, Vladimir; /Fermilab

2011-11-28T23:59:59.000Z

126

The Industrial Power Plant Management System - An Engineering Approach  

E-Print Network [OSTI]

THE INDUSTRIAL POWER PLANT MANAGEMENT SYSTEM AN ENGINEERING APPROACH Seppo E. Aarnio, Heikki J. Tarvainen and Valentin Tinnis EKONO Oy, Helsinki, Finland EKONO Inc., Bellevue, Washington ABSTRACT Based on energy studies in over 70 plants... in Finland. The results of the optimization calculations are used for two types of operations guidance. The first duty of the operators is to adjust the determined set points for the most economic loading, fuel firing and purchasing of power. This is done...

Aarnio, S. E.; Tarvainen, H. J.; Tinnis, V.

1979-01-01T23:59:59.000Z

127

Application of STPA to the integration of multiple control systems : a case study and new approach  

E-Print Network [OSTI]

A new approach for analyzing multiple control systems within the STPA framework has been developed and demonstrated. The new approach meets the growing need of system engineers to analyze integrated control systems, that ...

Placke, Matthew Seth

2014-01-01T23:59:59.000Z

128

Diesel Aftertreatment Modeling:? A Systems Approach to NOx Control  

Science Journals Connector (OSTI)

Diesel Aftertreatment Modeling:? A Systems Approach to NOx Control ... Despite these challenges, the proposed system was able to make several advances:? (1) meeting the T2B5 CO, HC, and PM standards; (2) quantifying the ability to meet T2B5 NOx levels with a more durable DOC and a rapid warm-up strategy to heat the exhaust, especially during the initial cold-start portion of the Federal Test Procedure (FTP) drive cycle. ... The remainder of this work is organized as follows:? The formulation, calibration, and validation of the DOC and SCR models are presented in section 2. The DOC and SCR models are combined for an analysis of the AT system as a whole in section 3. The final section of the article summarizes the results and offers some general conclusions. ...

Santhoji R. Katare; Joseph E. Patterson; Paul M. Laing

2007-03-16T23:59:59.000Z

129

Integrated Systems-Based Approach to Monitoring Environmental Remediation  

SciTech Connect (OSTI)

The US Department of Energy (DOE) is responsible for risk reduction and cleanup of its nuclear weapons complex. Remediation strategies for some of the existing contamination use techniques that mitigate risk, but leave contaminants in place. Monitoring to verify remedy performance and long-term mitigation of risk is a key element for implementing these strategies and can be a large portion of the total cost of remedy implementation. Especially in these situations, there is a need for innovative monitoring approaches that move away from the cost and labor intensive point-source monitoring. A systems-based approach to monitoring design focuses monitoring on controlling features and processes to enable effective interpretation of remedy performance.

Bunn, Amoret L.; Truex, Michael J.; Oostrom, Martinus; Carroll, Kenneth C.; Wellman, Dawn M.

2013-02-24T23:59:59.000Z

130

Integrated Systems-Based Approach to Monitoring Environmental Remediation - 13211  

SciTech Connect (OSTI)

The US Department of Energy (DOE) is responsible for risk reduction and cleanup of its nuclear weapons complex. Remediation strategies for some of the existing contamination use techniques that mitigate risk, but leave contaminants in place. Monitoring to verify remedy performance and long-term mitigation of risk is a key element for implementing these strategies and can be a large portion of the total cost of remedy implementation. Especially in these situations, there is a need for innovative monitoring approaches that move away from the cost and labor intensive point-source monitoring. A systems-based approach to monitoring design focuses monitoring on controlling features and processes to enable effective interpretation of remedy performance. (authors)

Truex, Mike; Oostrom, Mart; Carroll, K.C.; Bunn, Amoret; Wellman, Dawn [Pacific Northwest National Laboratory (PNNL), Richland, Washington (United States)] [Pacific Northwest National Laboratory (PNNL), Richland, Washington (United States)

2013-07-01T23:59:59.000Z

131

Software system reliability and safety assessment: an extended FMEA approach  

Science Journals Connector (OSTI)

This paper presents a methodology for assessing the reliability and safety of a software based on an extended Failure Modes and Effects Analysis (FMEA) approach. The methodology is described in steps with illustrative examples. The analysis starts from initial phase of the software development and evolves during the subsequent phases of software development providing valuable information to each phases. Finally, the analysis yields a quantitative assessment of reliability and safety of the software system. The paper's main objective is to support Probabilistic Safety Assessment (PSA) in assessing risk. Risk is a function of severity and failure frequency/probability. The severity is characteristic of failure effects. Failures may be analysed as functional or component failure. In this paper, it is proposed to consider severity levels at functional failure level as it is easier to understand failure effects at functional level. Moreover, various logical combinations of different functional failures can also be formed and analysed using the proposed approach.

Sinda Rebello; Neeraj Kumar Goyal

2010-01-01T23:59:59.000Z

132

Systems approaches to integrated solid waste management in developing countries  

Science Journals Connector (OSTI)

Solid waste management (SWM) has become an issue of increasing global concern as urban populations continue to rise and consumption patterns change. The health and environmental implications associated with SWM are mounting in urgency, particularly in the context of developing countries. While systems analyses largely targeting well-defined, engineered systems have been used to help SWM agencies in industrialized countries since the 1960s, collection and removal dominate the SWM sector in developing countries. This review contrasts the history and current paradigms of SWM practices and policies in industrialized countries with the current challenges and complexities faced in developing country SWM. In industrialized countries, public health, environment, resource scarcity, climate change, and public awareness and participation have acted as SWM drivers towards the current paradigm of integrated SWM. However, urbanization, inequality, and economic growth; cultural and socio-economic aspects; policy, governance, and institutional issues; and international influences have complicated SWM in developing countries. This has limited the applicability of approaches that were successful along the SWM development trajectories of industrialized countries. This review demonstrates the importance of founding new SWM approaches for developing country contexts in post-normal science and complex, adaptive systems thinking.

Rachael E. Marshall; Khosrow Farahbakhsh

2013-01-01T23:59:59.000Z

133

Biodiversity in the context of ecosystem services: the applied need for systems approaches  

Science Journals Connector (OSTI)

...Biodiversity science and conservation...population-level approaches are used...included the management of agricultural...a systems approach; there must...thinking and approaches to ongoing conservation management and monitoring...parallel to the science, there have...

2012-01-01T23:59:59.000Z

134

Building America Perspective and Overlay to the Energy Upgrade California Approach  

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

Perspective & Perspective & Overlay to the Energy Upgrade California Approach Driving demand through targeted neighborhood programs By Mark Berman, Alliance for Residential Building Innovation BA Residential Energy Efficiency Stakeholder Meeting - March 1, 2012 Austin, TX Relevant BAP Gaps & Barriers 1. Difficulty in recruiting homeowners to participate in home energy upgrade programs. (Recruitment) 2. Need to develop sustainable retrofit business models (Biz Models) - Review business models in Better Buildings Program & other programs 3. Data mining - need to analyze utility bills to get a sense of whole-house efficiency and savings (Aggregate Results) 2 Overview: Stockton CA

135

SYRMA: a tool for a system approach to risk management in mission critical systems  

Science Journals Connector (OSTI)

Managing risks and taking steps to reduce risks at acceptable level are considered as strategic objectives for organisations in almost any application domain. It is widely recognised that a system-oriented approach is needed to effectively manage risks in complex and mission critical systems. Well-known standard approaches to risk management exist and some frameworks and best practices have reached a high level of completeness and suitability in the different possible application scenarios. Nonetheless, we realised that poor support is offered towards the adoption of system-oriented approaches to risk management. This paper proposes a web-based application, named systemic risk management (SYRMA), to effectively support a system approach to risk management, especially in the case of complex and mission critical systems. SYRMA is based on a conceptual model that identifies main entities in risk management and their relations with resources of the target organisation. Identified relationships among model entities facilitate the provision of a synoptic overview of incidents, possible risks and risk-related information. Finally, we describe how SYRMA has been implemented as a prototype for the healthcare sector.

Gionni Bernardini; Federica Paganelli; Mauro Manetti; Alessandro Fantechi; Ernesto Iadanza

2013-01-01T23:59:59.000Z

136

A Scenario-based Predictive Control Approach to Building HVAC Management Systems  

E-Print Network [OSTI]

A Scenario-based Predictive Control Approach to Building HVAC Management Systems Alessandra Parisio and Air Conditioning (HVAC) systems while minimizing the overall energy use. The strategy uses

Johansson, Karl Henrik

137

Case study field evaluation of a systems approach to retrofitting a residential HVAC system  

SciTech Connect (OSTI)

This case study focusing on a residence in northern California was undertaken as a demonstration of the potential of a systems approach to HVAC retrofits. The systems approach means that other retrofits that can affect the HVAC system are also considered. For example, added building envelope insulation reduces building loads so that smaller capacity HVAC system can be used. Secondly, we wanted to examine the practical issues and interactions with contractors and code officials required to accomplish the systems approach because it represents a departure from current practice. We identified problems in the processes of communication and installation of the retrofit that led to compromises in the final energy efficiency of the HVAC system. These issues must be overcome in order for HVAC retrofits to deliver the increased performance that they promise. The experience gained in this case study was used to optimize best practices guidelines for contractors (Walker 2003) that include building diagnostics and checklists as tools to assist in ensuring the energy efficiency of ''house as a system'' HVAC retrofits. The best practices guidelines proved to be an excellent tool for evaluating the eight existing homes in this study, and we received positive feedback from many potential users who reviewed and used them. In addition, we were able to substantially improve the energy efficiency of the retrofitted case study house by adding envelope insulation, a more efficient furnace and air conditioner, an economizer and by reducing duct leakage.

Walker, Iain S.; McWiliams, Jennifer A.; Konopacki, Steven J.

2003-09-01T23:59:59.000Z

138

A Systems Genetics Approach to Evaluate Serum Cytokine Expression Profiles  

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

Evaluate Serum Cytokine Expression Profiles Evaluate Serum Cytokine Expression Profiles in 10 cGy-Irradiated Mice: Possible Connection to Susceptibility/Resistance to Cancer E.A. Blakely Lawrence Berkeley National Laboratory Abstract Goal: To use a systems-genetics approach to evaluate serum cytokine expression profiles in 10 cGy-whole-body-irradiated mice (BALB/c and Spret/EiJ parental strains, and their F1 offspring backcrossed (F1Bx) to female BALB/c). Background and Significance: Even low doses of ionizing radiation (鈭10 cGy) can alter the composition of the tissue microenvironment by rapidly affecting cytokine production and activities, extracellular matrix (ECM) composition, and the expression of receptors that mediate cell-to-cell interactions (1). The stroma in mammary glands is constantly changing

139

Effective interaction approach to the Fermi hard-sphere system  

E-Print Network [OSTI]

The formalism based on correlated basis functions and the cluster expansion technique has been recently employed to derive an effective interaction from a realistic nuclear hamiltonian. To gauge the reliability of this scheme, we perform a systematic comparison between the results of its application to the Fermi hard-sphere system and the predictions obtained from low-density expansions, as well as from other many-body techniques. The analysis of a variety of properties, including the ground state energy, the effective mass and the momentum distribution, shows that the effective interaction approach is remarkably accurate, thus suggesting that it may be employed to achieve a consistent description of the structure and dynamics of nuclear matter in the density region relevant to astrophysical applications.

Angela Mecca; Alessandro Lovato; Omar Benhar; Artur Polls

2014-10-31T23:59:59.000Z

140

Effective interaction approach to the Fermi hard-sphere system  

E-Print Network [OSTI]

The formalism based on correlated basis functions and the cluster expansion technique has been recently employed to derive an effective interaction from a realistic nuclear hamiltonian. To gauge the reliability of this scheme, we perform a systematic comparison between the results of its application to the Fermi hard-sphere system and the predictions obtained from low-density expansions, as well as from other many-body techniques. The analysis of a variety of properties, including the ground state energy, the effective mass and the momentum distribution, shows that the effective interaction approach is remarkably accurate, thus suggesting that it may be employed to achieve a consistent description of the structure and dynamics of nuclear matter in the density region relevant to astrophysical applications.

Mecca, Angela; Benhar, Omar; Polls, Artur

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "whole-house systems approach" 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

A unified approach to controller design for systems with quantization and time scheduling  

E-Print Network [OSTI]

A unified approach to controller design for systems with quantization and time scheduling Dragan for controller design for control systems with quantization and time scheduling via an emulation-like approach control systems (QCS) and networked control systems (NCS) literature and provide a unified framework

Sontag, Eduardo

142

Live Help Systems: An Approach to Intelligent Help for Web Information  

E-Print Network [OSTI]

Live Help Systems: An Approach to Intelligent Help for Web Information Systems Johan 掳Aberg #12, and it is increasingly important to provide them with support. Our research approach to online help for Web site users is the intro- duction and study of what we call live help systems. A live help system is an intelligent help

Aberg, Johan

143

SunShot Initiative: Transformational Approach to Reducing the Total System  

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

Transformational Approach to Transformational Approach to Reducing the Total System Costs of Building-Integrated Photovoltaics to someone by E-mail Share SunShot Initiative: Transformational Approach to Reducing the Total System Costs of Building-Integrated Photovoltaics on Facebook Tweet about SunShot Initiative: Transformational Approach to Reducing the Total System Costs of Building-Integrated Photovoltaics on Twitter Bookmark SunShot Initiative: Transformational Approach to Reducing the Total System Costs of Building-Integrated Photovoltaics on Google Bookmark SunShot Initiative: Transformational Approach to Reducing the Total System Costs of Building-Integrated Photovoltaics on Delicious Rank SunShot Initiative: Transformational Approach to Reducing the Total System Costs of Building-Integrated Photovoltaics on Digg

144

A Systems-Theoretic Approach to Safety in Software-Intensive Nancy G. Leveson  

E-Print Network [OSTI]

and for non-technical aspects of safety such as organizational culture and human decision-making. This paperA Systems-Theoretic Approach to Safety in Software-Intensive Systems Nancy G. Leveson Abstract of the approach. Keywords: software safety, system safety, accident models, software engineering 1 Introduction

Leveson, Nancy

145

Agent-based artificial immune system approach for adaptive damage detection in monitoring networks  

Science Journals Connector (OSTI)

This paper presents an agent-based artificial immune system approach for adaptive damage detection in distributed monitoring networks. The presented approach establishes a new monitoring paradigm by embodying desirable immune attributes, such as adaptation, ... Keywords: Artificial immune systems, Mobile agents, Multi-agent systems, Pattern recognition, Structural health monitoring

Bo Chen

2010-11-01T23:59:59.000Z

146

CCSF Topical Lunch Summary Systems Approach to Sustainable Energy  

E-Print Network [OSTI]

, and implementation of solution. 路 Energy considerations: sources, distribution, and conservation; 路 Maximum energy systems, wind energy, solar, carbon sequestration biofuels, systems, mathematical and computational interest in systems area: space systems, rotating machinery, combustion, wind energy, electric vehicle, etc

Angenent, Lars T.

147

Investigation of greenhouse gas reduction strategies by industries : an enterprise systems architecting approach  

E-Print Network [OSTI]

This thesis explores an enterprise systems architecting approach to investigate the greenhouse gas reduction strategies followed by industries, especially for automotive industry and Information Technology industry. The ...

Tanthullu Athmaram, Kumaresh Babu

2012-01-01T23:59:59.000Z

148

E-Print Network 3.0 - adaptive system approach Sample Search...  

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

a vital capability for systems to recover themselves from failures... , Model Oriented Architecture5, and ICENI6. These approaches ... Source: Taleb-Bendiab, A. -...

149

A Formal Development Approach for Self-Organising Systems  

Science Journals Connector (OSTI)

Self-organising systems are distributed systems which achieve an ordered global state without centralised control. They include adaptive sensor networks, swarm robotic systems and mobile ad-hoc networks. Designing such systems is difficult and often ... Keywords: self-organising systems, Object-Z, refinement, Unifying Theories of Programming, guarded design calculus

Qin Li, Graeme Smith

2014-09-01T23:59:59.000Z

150

Functional blueprints: an approach to modularity in grown systems  

Science Journals Connector (OSTI)

The engineering of grown systems poses fundamentally different system integration challenges than ordinary engineering of static designs. On the one hand, a grown system must be capable of surviving not only in its final form, but at every intermediate ...

Jacob Beal

2010-09-01T23:59:59.000Z

151

A robust guidance system for aircraft approach and landing  

E-Print Network [OSTI]

Aircraft approach and landing are very demanding and risky operational phases compared to other routine flight phases. Statistics show that large percentages of aircraft accidents, especially general aviation (GA) aircraft, occur during these phases...

Yu, Ren-Jye

1999-01-01T23:59:59.000Z

152

A system identification approach to non-invasive central cardiovascular monitoring  

E-Print Network [OSTI]

This thesis presents a new system identification approach to non-invasive central cardiovascular monitoring problem. For this objective, this thesis will develop and analyze blind system identification and input signal ...

Hahn, Jin-Oh, Ph. D. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

153

A decomposition-based approach for the integration of product development and manufacturing system design  

E-Print Network [OSTI]

Using a structured approach to understand the interaction between product design decisions and manufacturing system design is critical to reflect manufacturing system issues early in the product development process. Early ...

Kim, Yong-Suk, 1975-

2002-01-01T23:59:59.000Z

154

A Qualitive Modeling Approach for Fault Detection and Diagnosis on HVAC Systems  

E-Print Network [OSTI]

This paper describes the basics and first test results of a model based approach using qualitative modeling to perform Fault Detection and Diagnostics (FDD) on HVAC and R systems. A quantized system describing the qualitative behavior of a...

Muller, T.; Rehault, N.; Rist, T.

2013-01-01T23:59:59.000Z

155

Degeneration Effects in Distributed Systems and Their Behavior as Their Parameters Approach the Point of Degeneration  

Science Journals Connector (OSTI)

For the unidimensional distributed nondegenerate linear system, the conditions for degeneracy and convergence of behavior as its parameters approach the point of degeneracy were established and studied using by way of example the unidimensional system ...

E. M. Solnechnyi

2004-11-01T23:59:59.000Z

156

A decision support system for fisheries management using operations research and systems science approach  

Science Journals Connector (OSTI)

In this paper, we present a general framework, using a systems science approach, for developing a decision support system (DSS) for fisheries management. Decision support systems are quantitative tools for managers to evaluate outcomes of their policies prior to implementation. Our fishery model considers multiple stocks and fisheries simultaneously in balancing catch among targeted and protected fish abundances. Since in the Northeastern US multispecies fishery the distribution of abundance, catch-per-unit-effort and bycatch vary geographically, we focus on a spatial management approach to address their spatial variability. The core component of this DSS applies operations research techniques of simulation and optimization to determine the optimal inter-annual and intra-annual fishing plans in terms of fishing efforts in each sub-area and the time period. The result is the recommended amount to catch from each fish species at each sub-area at any time period so that while management objectives for sustainability of fish stocks are satisfied, the value of landings is maximized. The graphical user interface of the proposed DSS helps users to define inputs, to set constraints and sub-area boundaries, and to visualize the outcomes.

Farhad Azadivar; Tu Truong; Yue Jiao

2009-01-01T23:59:59.000Z

157

Approaches to 30% Energy Savings at the Community Scale in the Hot-Humid Climate  

SciTech Connect (OSTI)

BA-PIRC has worked with several community-scale builders within the hot humid climate zone to improve performance of production, or community scale, housing. Tommy Williams Homes (Gainesville, FL), Lifestyle Homes (Melbourne, FL), and Habitat for Humanity (various locations, FL) have all been continuous partners of the BA Program and are the subjects of this report to document achievement of the Building America goal of 30% whole house energy savings packages adopted at the community scale. The scope of this report is to demonstrate achievement of these goals though the documentation of production-scale homes built cost-effectively at the community scale, and modeled to reduce whole-house energy use by 30% in the Hot Humid climate region. Key aspects of this research include determining how to evolve existing energy efficiency packages to produce replicable target savings, identifying what builders' technical assistance needs are for implementation and working with them to create sustainable quality assurance mechanisms, and documenting the commercial viability through neutral cost analysis and market acceptance. This report documents certain barriers builders overcame and the approaches they implemented in order to accomplish Building America (BA) Program goals that have not already been documented in previous reports.

Thomas-Rees, S.; Beal, D.; Martin, E.; Fonorow, K.

2013-03-01T23:59:59.000Z

158

Systems approach used in the Gas Centrifuge Enrichment Plant  

SciTech Connect (OSTI)

A requirement exists for effective and efficient transfer of technical knowledge from the design engineering team to the production work force. Performance-Based Training (PBT) is a systematic approach to the design, development, and implementation of technical training. This approach has been successfully used by the US Armed Forces, industry, and other organizations. The advantages of the PBT approach are: cost-effectiveness (lowest life-cycle training cost), learning effectiveness, reduced implementation time, and ease of administration. The PBT process comprises five distinctive and rigorous phases: Analysis of Job Performance, Design of Instructional Strategy, Development of Training Materials and Instructional Media, Validation of Materials and Media, and Implementation of the Instructional Program. Examples from the Gas Centrifuge Enrichment Plant (GCEP) are used to illustrate the application of PBT.

Rooks, W.A. Jr.

1982-01-01T23:59:59.000Z

159

Integrating hospital information systems: a bottom-up approach  

Science Journals Connector (OSTI)

The growing complexity of hospital information systems has prompted information systems managers to seek applicable solutions for integrating their systems. While many successful applications of information systems have been introduced and implemented in the hospital environment, the integration of heterogeneous applications in existing, multi-vendor, computing environments into a cohesive hospital-wide information system has proved to be complicated and difficult to accomplish. This paper discusses systems integration in hospitals and presents a conceptual framework for bottom-up integration of hospital information systems. The scope of the proposed framework is the integration of stand-alone clinical, administrative and financial information elements of a hospital into a unified system environment with a central medical data warehouse.

Moshe Zviran; Aviad Armoni

1999-01-01T23:59:59.000Z

160

Developing Public Transport Network systems: The DIANA approach  

Science Journals Connector (OSTI)

In this paper we introduce the project DIANA, which deals with the development of innovative algorithms and decision support systems for the design of public transport network systems. The project aims to design transportation networks with conventional ... Keywords: genetic algorithms, reinforcement learning, transportation systems

D. I. Kosmopoulos; M. Kalohristianakis; A. Malamos; Sotirios Chatzis; M. Pternea; K. Kepaptsoglou; M. Karlaftis

2014-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "whole-house systems approach" 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

TOWARD HIGHLY SECURE AND AUTONOMIC COMPUTING SYSTEMS: A HIERARCHICAL APPROACH  

SciTech Connect (OSTI)

The overall objective of this research project is to develop novel architectural techniques as well as system software to achieve a highly secure and intrusion-tolerant computing system. Such system will be autonomous, self-adapting, introspective, with self-healing capability under the circumstances of improper operations, abnormal workloads, and malicious attacks. The scope of this research includes: (1) System-wide, unified introspection techniques for autonomic systems, (2) Secure information-flow microarchitecture, (3) Memory-centric security architecture, (4) Authentication control and its implication to security, (5) Digital right management, (5) Microarchitectural denial-of-service attacks on shared resources. During the period of the project, we developed several architectural techniques and system software for achieving a robust, secure, and reliable computing system toward our goal.

Lee, Hsien-Hsin S

2010-05-11T23:59:59.000Z

162

Modelling and control of multi-energy systems: an irreversible port-Hamiltonian approach Hector Ramireza  

E-Print Network [OSTI]

Modelling and control of multi-energy systems: an irreversible port-Hamiltonian approach Hector the formalism. Keywords: Irreversible thermodynamics, port-Hamiltonian system, control, multi-energy systems 1-mail: dsbarbar@udec.cl). Abstract In recent work a class of quasi port Hamiltonian system expressing the first

Paris-Sud XI, Universit茅 de

163

A Hybrid Scheduling Approach for Scalable Heterogeneous Hadoop Systems  

E-Print Network [OSTI]

and available resources. I. INTRODUCTION Cloud computing promises three distinct characteristics: elastic performance. A common enterprise practice is to have a private Hadoop system installed on an intranet

Smith, Spencer

164

Pathways, Networks and Therapy: A Boolean Approach to Systems Biology  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 1. Cell cycle control, DNA mutation and cancer . . . . . . . 89 D. Growth factor mediated pathways: combinatorial network . . . 91 1. Input-output simulation of the BN . . . . . . . . . . . . . 93 2. Modeling faults and therapeutic... of pathways and therapeutic target point knowl- edge in systems biology. . . . . . . . . . . . . . . . . . . . . . . . . . . 108 36 Personalized medicine using systems biology. . . . . . . . . . . . . . . . 109 1 CHAPTER I INTRODUCTION Biology is a...

Layek, Ritwik

2012-07-16T23:59:59.000Z

165

Systems analysis approach to probabilistic modeling of fault trees  

SciTech Connect (OSTI)

A method of probabilistic modeling of fault tree logic combined with stochastic process theory (Markov modeling) has been developed. Systems are then quantitatively analyzed probabilistically in terms of their failure mechanisms including common cause/common mode effects and time dependent failure and/or repair rate effects that include synergistic and propagational mechanisms. The modeling procedure results in a state vector set of first order, linear, inhomogeneous, differential equations describing the time dependent probabilities of failure described by the fault tree. The solutions of this Failure Mode State Variable (FMSV) model are cumulative probability distribution functions of the system. A method of appropriate synthesis of subsystems to form larger systems is developed and applied to practical nuclear power safety systems.

Bartholomew, R.J.; Qualls, C.R.

1985-01-01T23:59:59.000Z

166

A Binary Linear Programming Approach for LCA System Boundary Identification  

Science Journals Connector (OSTI)

One of the very first steps in conducting life cycle assessment (LCA) is system boundaries identification. A binary ... boundary between significant and insignificant processes in a LCA study. The proposed model ...

Feri Afrinaldi; Hong-Chao Zhang

2013-01-01T23:59:59.000Z

167

Resilience thinking: a renewed system approach for sustainability science  

Science Journals Connector (OSTI)

Resilience thinking is similar to the objective of sustainability. With a resilience capacity, the system ... social and economic wellbeing which consists of the three sustainability pillars. The advocated strong...

Li Xu; Dora Marinova; Xiumei Guo

2014-10-01T23:59:59.000Z

168

A New Approach to Commissioning of the VAV Control System  

E-Print Network [OSTI]

. Hyvarinen, S. Karki. Building optimization and fault diagnosis source book. IEA Annex (1996) 25 [3] H. Yoshida, T. Iwami, H. Yuzawa, M. Suzuki. Typical faults of airconditioning systems and fault detection by ARX model and extended Kalman Filter. ASHRAE...

Han, Z.; Xia, C.; Zhu, Y.; Xu, G.

2006-01-01T23:59:59.000Z

169

A Holistic Approach to Marine Eco-Systems Biology  

E-Print Network [OSTI]

With biology becoming quantitative, systems-level studies can now be performed at spatial scales ranging from molecules to ecosystems. Biological data generated consistently across scales can be integrated with physico-chemical ...

Follows, Michael J.

170

Practical Approach in Design of HVAC Systems Utilizing Geothermal Energy  

Science Journals Connector (OSTI)

Geothermal is the Earth抯 thermal energy. In recent years geothermal energy has been utilized for generation of electricity, heating and air conditioning (HVAC). Geothermal HVAC systems are cost effective, energy

M. Fathizadeh; D. Seims

2014-01-01T23:59:59.000Z

171

Energy Blog | Department of Energy  

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

6, 2012 6, 2012 Production builder Centex Homes built ultra-efficient model homes in San Ramon, California.'s Aventura and Lunaria community developments. Credit: Davis Energy Group. Products and Building Services for Energy-Efficient Homes List of products and services for buyers and builders of new energy-efficient homes. April 26, 2012 The whole-house systems approach used to design this ultra-efficient home at Lone Star Ranch in Frisco, Texas, resulted in a home that consumes no more energy that its renewable energy systems produce. Photo from Building Science Corporation. Whole-House Systems Approach A whole-house systems approach considers the house as an energy system with interdependent parts, each of which affects the performance of the entire system.

172

Building America Whole-House Solutions for Existing Homes: Performance of a Hot-Dry Climate Whole-House Retrofit, Stockton, California (Fact Sheet)  

Broader source: Energy.gov [DOE]

This case study describes a deep energy retrofit project on a home in Stockton, California, that reduced the energy use of the home by 23%

173

SYSTEM APPROACH-BASED BAYESIAN NETWORK TO AID MAINTENANCE OF MANUFACTURING PROCESS  

E-Print Network [OSTI]

for manufacturing systems. In addition, recent works on system safety and Bayesian Networks (BNs) are developedSYSTEM APPROACH-BASED BAYESIAN NETWORK TO AID MAINTENANCE OF MANUFACTURING PROCESS Weber P., Suhner explores a new methodology to develop Bayesian Network-based diagnosis and prognosis aids for manufacturing

Paris-Sud XI, Universit茅 de

174

Restoration of Services in Interdependent Infrastructure Systems: A Network Flows Approach  

E-Print Network [OSTI]

cause disruption #12;3 in these critical infrastructure systems, e.g., disruptions in power, telecommunications and water. These systems have become so interconnected, one relying on another, that disruption of one may lead to disruptions in all. The approach taken in this research is to model these systems

Mitchell, John E.

175

Multi-storage Hybrid System Approach and Experimental Investigations  

Science Journals Connector (OSTI)

Abstract The paper presents a new multi-storage hybrid system concept for the improvement of self-consumption rate, conversion efficiency and storage lifetime in photovoltaic (PV) hybrid systems. Main idea is the smart combination and control of short- and long-term storage technologies with supplementary operating characteristics. The paper discusses a typical application example of a PV-hybrid system with lithium-ion battery, hydrogen and heat storage path. A dynamic lithium-ion battery model is presented. The power electronic and control structure of the multi-storage experimental test-bed is explained. Investigation results for a typical application example demonstrate the functionality and benefits of the proposed concept.

Thilo Bocklisch; Michael B鰐tiger; Martin Paulitschke

2014-01-01T23:59:59.000Z

176

A New Approach to Fuzzy Modeling and Control of Discrete-Time Systems  

E-Print Network [OSTI]

], the advantage of fuzzy logic in modeling and control is in the ability to combine modeling (constructingA New Approach to Fuzzy Modeling and Control of Discrete-Time Systems Michael Margaliot and Gideon Langholz #3; Abstract We present a new approach to fuzzy modeling and control of discrete-time sys- tems

Margaliot, Michael

177

An Approach to Supervisory Control of an Energy Management Control System Using Fuzzy Logic  

E-Print Network [OSTI]

In this paper an approach to supervisory control of multi-stage industrial control systems is presented. This approach is based on the notion of an internal reference model, and further makes use of a fuzzy multi-objective optimization strategy...

Langari, R.

178

Notes On The Born-Oppenheimer Approach In A Closed Dynamical System  

E-Print Network [OSTI]

The various recent studies on the applications of the Born-Oppenheimer approach in a closed gravity matter system is examined. It is pointed out that the Born-Oppenheimer approach in the absence of an a priori time is likely to yield potentially new results.

Dhurjati Prasad Datta

1997-06-26T23:59:59.000Z

179

1236 Plant Disease / Vol. 96 No. 9 A Systems Approach for Management  

E-Print Network [OSTI]

1236 Plant Disease / Vol. 96 No. 9 A Systems Approach for Management of Pests and Pathogens, recognized, and managed using pest management tools and approaches that often differ among plant taxa of Nursery Crops Jennifer L. Parke Department of Crop and Soil Science & Department of Botany and Plant

Gr眉nwald, Niklaus J.

180

Distributed control for reconfigurable FPGA systems: a high-level design approach  

E-Print Network [OSTI]

Distributed control for reconfigurable FPGA systems: a high-level design approach Chiraz Trabelsi to increase design productivity. This approach combines control distribution and high-level modeling in order to decrease design complexity and enhance design reuse and scalability. Control distribution is based

Paris-Sud XI, Universit茅 de

Note: This page contains sample records for the topic "whole-house systems approach" 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

Page not found | Department of Energy  

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

21 - 24530 of 28,905 results. 21 - 24530 of 28,905 results. Article Whole-House Systems Approach A whole-house systems approach considers the house as an energy system with interdependent parts, each of which affects the performance of the entire system. http://energy.gov/energysaver/articles/whole-house-systems-approach Article Fuel Economy on the Fly If you're in the market for a new car, FuelEconomy.gov can help you pick the most fuel-efficient vehicle for your needs. http://energy.gov/energysaver/articles/fuel-economy-fly Article How Saving Energy Might Be Contagious I was wondering the other day if saving energy might be, you know, contagious. And yes, that's an awfully dorky thing to think. But I found myself wondering that because I really was being a bit of... http://energy.gov/energysaver/articles/how-saving-energy-might-be-contagious

182

A SYSTEMS APPROACH TO MATHEMATICAL MODELING OF INDUSTRIAL PROCESSES  

E-Print Network [OSTI]

/or partial automation of the creative modeling process. Model Generation is a new modeling paradigm designed specifically for rapid modeling of large multi-scale systems in the industrial practice. It proposes model. Keywords: Dynamic and continuous/discrete simulation, computer-aided modeling, symbolic

Linninger, Andreas A.

183

An ontology-based approach to information systems security management  

Science Journals Connector (OSTI)

Complexity of modern information systems (IS), impose novel security requirements. On the other hand, the ontology paradigm aims to support knowledge sharing and reuse in an explicit and mutually agreed manner. Therefore, in this paper we set the foundations ... Keywords: IS security, security management, security ontology, security policy

Bill Tsoumas; Stelios Dritsas; Dimitris Gritzalis

2005-09-01T23:59:59.000Z

184

Final approach guidance using an altimeter-aided Loran-C display system  

E-Print Network [OSTI]

Introduction: The goal of this thesis is to test the flyability of a display system that uses a King Radio KEAO-346 altimeter and Micrologic ML-3000 LORAN-C receiver for final approach guidance and to model the dynamics ...

Dogan, Norry

1986-01-01T23:59:59.000Z

185

Approaches to Anaphora Resolution in a Natural Language Database Management System  

E-Print Network [OSTI]

interface to a variety of systems. The types of information available for resolution are first identified and the past approaches to resolution for each type are critically reviewed. This paper then describes how anaphora resolution is implemented...

Nara, Hiroshi

1986-01-01T23:59:59.000Z

186

Automated material handling systems: an approach to robust layout planning of AMHS  

Science Journals Connector (OSTI)

The simulation-based layout planning of automated material handling systems (AMHS) for microelectronics and semiconductor manufacturing demands adequate simulation models. An approach for measuring and quantifying the AMHS layout performance of alternative ...

Roland Sturm; Joachim Seidelmann; Johann Dorner; Kevin Reddig

2003-12-01T23:59:59.000Z

187

Comparative Study of Model-Based and Multi-Domain System Engineering Approaches for Industrial Settings  

Science Journals Connector (OSTI)

A typical approach for the development of multi-domain systems often carries the risk of high non-conformance costs and time-consuming re-engineering due to the lack of interoperability between different domai...

Anjelika Votintseva; Petra Witschel

2012-01-01T23:59:59.000Z

188

Cybernetic automata: An approach for the realization of economical cognition for multi-robot systems  

E-Print Network [OSTI]

CYBERNETIC AUTOMATA: AN APPROACH FOR THE REALIZATION OF ECONOMICAL COGNITION FOR MULTI-ROBOT SYSTEMS A Dissertation by NEBU JOHN MATHAI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of DOCTOR OF PHILOSOPHY May 2008 Major Subject: Electrical Engineering CYBERNETIC AUTOMATA: AN APPROACH FOR THE REALIZATION OF ECONOMICAL COGNITION FOR MULTI-ROBOT SYSTEMS A Dissertation by NEBU JOHN MATHAI Submitted to the Office of Graduate...

Mathai, Nebu John

2009-05-15T23:59:59.000Z

189

Simplified thermoeconomic approach to cost allocation in acombined cycle cogeneration and district energy system  

E-Print Network [OSTI]

of the requirements for the degree of MASTER OF SCIENCE May 1997 Major Subject: Mechanical Engineering SIMPLIFIED THERMOECONOMIC APPROACH TO COST ALLOCATION IN A COMBINED CYCLE COGENERATION AND DISTRICT ENERGY SYSTEM A Thesis By JASON GRAHAM FLEMING... (Member) Jerald Caton (Head of Department) May 1997 lviajor Sui&ject: lviechanical Engineering ABSTRACT Simplified Thermoeconomic Approach to Cost Allocation in a Combined Cycle Cogeneration and District Energy System. (May 1997) Jason Graham...

Fleming, Jason Graham

1997-01-01T23:59:59.000Z

190

The coal cleat system: A new approach to its study  

Science Journals Connector (OSTI)

Abstract After a general analysis regarding the concept of coal 揷leat system, its genetic origin and practical applications to coalbed methane (CBM) commercial production and to CO2 geological sequestration projects, the authors have developed a method to answer, quickly and accurately in accordance with the industrial practice and needs, the following yet unanswered questions: (1) how to define the spatial orientation of the different classes of cleats presented in a coal seam燼nd (2) how to determine the frequency of their connectivites. The new available and presented techniques to answer these questions have a strong computer based tool (geographic information system, GIS), able to build a complete georeferentiated database, which will allow to three-dimensionally locate the laboratory samples in the coalfield. It will also allow to better understand the coal cleat system and consequently to recognize the best pathways to gas flow through the coal seam. Such knowledge is considered crucial for understanding what is likely to be the most efficient opening of cleat network, then allowing the injection with the right spatial orientation, of pressurized fluids in order to directly drain the maximum amount of gas flow to a CBM exploitation well. The method is also applicable to the CO2 geological sequestration technologies and operations corresponding to the injection of CO2 sequestered from industrial plants in coal seams of abandoned coal mines or deep coal seams.

C.F. Rodrigues; C. Laiginhas; M. Fernandes; M.J. Lemos de Sousa; M.A.P. Dinis

2014-01-01T23:59:59.000Z

191

Relevance of systems approaches for implementing Integrated Coastal Zone Management principles in Europe  

Science Journals Connector (OSTI)

Abstract Integrated Coastal Zone Management (ICZM) development is described here in the broader context of European coastal management initiatives. The European approach to coastal governance revolves around the principles of ICZM, as enshrined in EC Recommendation 2002/413/EC. This study investigates the extent to which the FP6 funded project SPICOSA (Science Policy Integration for Coastal Systems Assessment) was able to implement these principles. The SPICOSA project aimed to test whether it was possible to develop and implement a systems approach framework via delivery of a structured engagement process between scientists and policymakers. A survey of representatives from 14 European study sites involved in the project revealed that the approach had been effective at implementing some ICZM principles, particularly the 揾olistic approach. However, not all principles were fully implemented at all sites and the most challenging to implement was that of 揳 long term approach. The paper concludes with a critical consideration of the role of a systems approach framework in progressing the current state of intellectual assent towards practical implementation of ICZM principles. The findings provide evidence of contributions and limitations of systems approaches to sustainability science and good governance.

J. Reis; T. Stojanovic; H. Smith

2014-01-01T23:59:59.000Z

192

Constraint based approach for the steady-state simulation of complex systems: Application to ship control  

Science Journals Connector (OSTI)

When the steady states are largely predominant with respect to transitional phases, steady-state simulation seems sufficient to predict the behavior of a complex system. Over the past 20 years, different modeling languages and dedicated tools have been developed to improve steady state simulation. In this paper, focus is made on steady-state simulation for system control and design. A model combining an emission sub-model with a ship propulsion sub-model was implemented in a constraint programming (CP) approach. It will help to determine the efficiency (i.e. the ability to model and solve the problem) and complexity of implementation (i.e. difficulties encountered during the implementation) of this approach. First, requirements for the steady-state simulation of complex systems are defined. Then, CP approach is shown to be able to answer these issues through experiments. This approach is then compared to one of the main simulation languages: Modelica. Although the two approaches (i.e Modelica and CP) are able to reverse models, the study shows that the use of Modelica principles for steady-state simulation involves some crippling limitations, such as the non-management of under/over-constrained systems, or inequalities. This study also shows that the constraint programming approach permits to meet some needs for steady-state simulation not yet covered by current approaches.

Vincent Larroud; Raphael Chenouard; Pierre-Alain Yvars; Dominique Millet

2013-01-01T23:59:59.000Z

193

A complex systems approach to computational molecular biology  

SciTech Connect (OSTI)

We report on the containing research program at Santa Fe Institute that applies complex systems methodology to computational molecular biology. Two aspects are stressed here are the use of co-evolving adaptive neutral networks for determining predictable protein structure classifications, and the use of information theory to elucidate protein structure and function. A ``snapshot`` of the current state of research in these two topics is presented, representing the present state of two major research thrusts in the program of Genetic Data and Sequence Analysis at the Santa Fe Institute.

Lapedes, A. [Los Alamos National Lab., NM (United States)]|[Santa Fe Inst., NM (United States)

1993-09-01T23:59:59.000Z

194

Reactor technology assessment and selection utilizing systems engineering approach  

SciTech Connect (OSTI)

The first Nuclear power plant (NPP) deployment in a country is a complex process that needs to consider technical, economic and financial aspects along with other aspects like public acceptance. Increased interest in the deployment of new NPPs, both among newcomer countries and those with expanding programs, necessitates the selection of reactor technology among commercially available technologies. This paper reviews the Systems Decision Process (SDP) of Systems Engineering and applies it in selecting the most appropriate reactor technology for the deployment in Malaysia. The integrated qualitative and quantitative analyses employed in the SDP are explored to perform reactor technology assessment and to select the most feasible technology whose design has also to comply with the IAEA standard requirements and other relevant requirements that have been established in this study. A quick Malaysian case study result suggests that the country reside with PWR (pressurized water reactor) technologies with more detailed study to be performed in the future for the selection of the most appropriate reactor technology for Malaysia. The demonstrated technology assessment also proposes an alternative method to systematically and quantitatively select the most appropriate reactor technology.

Zolkaffly, Muhammed Zulfakar; Han, Ki-In [KEPCO International Nuclear Graduate School, Ulsan (Korea, Republic of)

2014-02-12T23:59:59.000Z

195

Streamlining the additive manufacturing digital spectrum: A systems approach  

Science Journals Connector (OSTI)

Abstract Additive manufacturing (AM) promises great potential benefits for industrial manufacturers who require low volume and functional, highly complex, end-use products. Commercial adoption of AM has been slow due to factors such as quality control, production rates, and repeatability. However, given AM's potential, numerous research efforts are underway to improve the quality of the product realization process. A major area of opportunity is to complement existing efforts with advancements in end-to-end digital implementations of AM processes. New paradigms are needed to support more efficient and consistent design-to-product transformations. Systematically configured digital implementations would facilitate informational transformations through standard interfaces, streamlining the AM digital spectrum. Here, we propose the development of a federated, information systems architecture for additive manufacturing. We establish an information requirements workflow for streamlining information throughput during product realization. The architecture is delivered through the development of a solution stack, including the identification of areas where advancements in information representations will have the highest impact. The architecture will specify the stages of the product realization process, and the interfaces needed to link those stages together. Common data structures and interfaces will allow developers and end users of additive manufacturing technologies to simplify, coordinate, validate, and verify end-to-end digital implementations.

Duck Bong Kim; Paul Witherell; Robert Lipman; Shaw C. Feng

2014-01-01T23:59:59.000Z

196

OF-FMEA: an approach to safety analysis of object-oriented software intensive systems  

Science Journals Connector (OSTI)

The paper presents an extension to the common FMEA method in such a way that it can be applied to safety analysis of systems (hardware and software) that are developed using a recently popular object oriented approach. The method makes use of the object ... Keywords: FMEA, formal analysis, safety critical systems

Tadeusz Cichocki; Janusz G髍ski

2003-01-01T23:59:59.000Z

197

The component interaction network approach for modeling of complex thermal systems  

Science Journals Connector (OSTI)

A practical approach for the thermal modeling of complex thermal systems, called the component interaction network (CIN) is presented. Its stages are explained: description of the thermal system as a set of non-overlapping components and their interactions ... Keywords: Component interaction network, Electric furnace, Experimental validation, Heat transfer, Rapid thermal processing, Thermal modeling

K. El Khoury; G. Mouawad; G. El Hitti; M. Nemer

2013-11-01T23:59:59.000Z

198

A Design Space Approach to Analysis of Information Retrieval Adaptive Filtering Systems  

E-Print Network [OSTI]

A Design Space Approach to Analysis of Information Retrieval Adaptive Filtering Systems Dmitriy, Adaptive Filtering 1. INTRODUCTION Constructing and tuning a good Information Retrieval (IR) system it requires to accomplish its various tasks. In many other technologies, such as HVAC (heating, venti- lation

199

A Simple and Intuitive Graphical Approach to the Design of Thermoelectric Cooling Systems  

E-Print Network [OSTI]

A Simple and Intuitive Graphical Approach to the Design of Thermoelectric Cooling Systems Simon, thermoelectric active cooling systems can help maintain electronic devices at a desired temperature condition and others. The method could help designers to examine and choose a thermoelectric module from catalogues

200

Improving End of Life Care: an Information Systems Approach to Reducing Medical Errors  

E-Print Network [OSTI]

, quality of care, end of life, electronic health records Introduction This research will evaluate the waysImproving End of Life Care: an Information Systems Approach to Reducing Medical Errors TAMANG S. a, CUNY, USA b Department of Research, Metropolitan Jewish Health System, NY, USA Abstract. Chronic

Kopec, Danny

Note: This page contains sample records for the topic "whole-house systems approach" 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

A dynamical systems approach for the station keeping of a Solar Sail  

E-Print Network [OSTI]

A dynamical systems approach for the station keeping of a Solar Sail Ariadna Farr麓es and `Angel considered the movement of a solar sail in the Sun - Earth system. As a model we have used the RTBP adding the solar radiation pressure. It can be seen that we have a 2D family of equilibria parametrised by the two

Barcelona, Universitat de

202

An Extended Process Automation System: An Approach Based on a Multi-Agent System.  

E-Print Network [OSTI]

??This thesis describes studies on application of multi-agent systems (acronym: MAS) to enhance process automation systems. A specification of an extended process automation system is (more)

Seilonen, Ilkka

2006-01-01T23:59:59.000Z

203

An extended process automation system : an approach based on a multi-agent system.  

E-Print Network [OSTI]

??This thesis describes studies on application of multi-agent systems (acronym: MAS) to enhance process automation systems. A specification of an extended process automation system is (more)

Seilonen, Ilkka

2006-01-01T23:59:59.000Z

204

Scientific Opportunities for Monitoring at Environmental Remediation Sites (SOMERS): Integrated Systems-Based Approaches to Monitoring  

SciTech Connect (OSTI)

Through an inter-disciplinary effort, DOE is addressing a need to advance monitoring approaches from sole reliance on cost- and labor-intensive point-source monitoring to integrated systems-based approaches such as flux-based approaches and the use of early indicator parameters. Key objectives include identifying current scientific, technical and implementation opportunities and challenges, prioritizing science and technology strategies to meet current needs within the DOE complex for the most challenging environments, and developing an integrated and risk-informed monitoring framework.

Bunn, Amoret L.; Wellman, Dawn M.; Deeb, Rula A.; Hawley, Elizabeth L.; Truex, Michael J.; Peterson, Mark; Freshley, Mark D.; Pierce, Eric M.; McCord, John; Young, Michael H.; Gilmore, Tyler J.; Miller, Rick; Miracle, Ann L.; Kaback, Dawn; Eddy-Dilek, Carol; Rossabi, Joe; Lee, Michelle H.; Bush, Richard P.; Beam , Paul; Chamberlain, G. M.; Marble, Justin; Whitehurst, Latrincy; Gerdes, Kurt D.; Collazo, Yvette

2012-05-15T23:59:59.000Z

205

ERNEST ORLANDO LAWRENCE BERKELEY NATIONAL LABORATORY  

E-Print Network [OSTI]

of mechanical systems, natural ventilation, and passive ventilation. Key parameters that are related to each/IEQ- 30090: Whole-House Vent : Evaluation of Whole-house Mechanical Ventilation System Options 颅 Phase I

206

The slope parameter approach to marine cathodic protection design and its application to impressed current systems  

SciTech Connect (OSTI)

The recently developed slope parameter approach to design of galvanic anode cathodic protection (cp) systems for marine structures constitutes an advancement in this technology compared to current practice, primarily because the former is first principles based and the latter is an empirical algorithm. In this paper, the slope parameter approach is reviewed; and related applications for which it can be utilized, including (1) design of new and retrofit cp systems, (2) evaluation of potential survey data, and (3) cp system design for complex geometries, are mentioned. The design current density is identified as the single remaining parameter for which values must be projected solely by experience or experimentation. In addition, the slope parameter approach is applied to the results of impressed current cp experiments, and it is shown how parameters for this can be interrelated with those of galvanic anode cp. Advantages of this capability are identified and discussed.

Hartt, W.H.

1999-07-01T23:59:59.000Z

207

Reliability Analysis of Electric Power Systems Using an Object-oriented Hybrid Modeling Approach  

E-Print Network [OSTI]

The ongoing evolution of the electric power systems brings about the need to cope with increasingly complex interactions of technical components and relevant actors. In order to integrate a more comprehensive spectrum of different aspects into a probabilistic reliability assessment and to include time-dependent effects, this paper proposes an object-oriented hybrid approach combining agent-based modeling techniques with classical methods such as Monte Carlo simulation. Objects represent both technical components such as generators and transmission lines and non-technical components such as grid operators. The approach allows the calculation of conventional reliability indices and the estimation of blackout frequencies. Furthermore, the influence of the time needed to remove line overloads on the overall system reliability can be assessed. The applicability of the approach is demonstrated by performing simulations on the IEEE Reliability Test System 1996 and on a model of the Swiss high-voltage grid.

Schl鋚fer, Markus; Kr鰃er, Wolfgang

2012-01-01T23:59:59.000Z

208

The split system approach to managing time in simulations of hybrid systems having continuous and discrete event components  

SciTech Connect (OSTI)

The efficient and accurate management of time in simulations of hybrid models is an outstanding engineering problem. General a priori knowledge about the dynamic behavior of the hybrid system (i.e. essentially continuous, essentially discrete, or 'truly hybrid') facilitates this task. Indeed, for essentially discrete and essentially continuous systems, existing software packages can be conveniently used to perform quite sophisticated and satisfactory simulations. The situation is different for 'truly hybrid' systems, for which direct application of existing software packages results in a lengthy design process, cumbersome software assemblies, inaccurate results, or some combination of these independent of the designer's a priori knowledge about the system's structure and behavior. The main goal of this paper is to provide a methodology whereby simulation designers can use a priori knowledge about the hybrid model's structure to build a straightforward, efficient, and accurate simulator with existing software packages. The proposed methodology is based on a formal decomposition and re-articulation of the hybrid system; this is the main theoretical result of the paper. To set the result in the right perspective, we briefly review the essentially continuous and essentially discrete approaches, which are illustrated with typical examples. Then we present our new, split system approach, first in a general formal context, then in three more specific guises that reflect the viewpoints of three main communities of hybrid system researchers and practitioners. For each of these variants we indicate an implementation path. Our approach is illustrated with an archetypal problem of power grid control.

Nutaro, James J [ORNL; Kuruganti, Phani Teja [ORNL; Protopopescu, Vladimir A [ORNL; Shankar, Mallikarjun [ORNL

2012-01-01T23:59:59.000Z

209

An integrated genetics approach to systemic low-dose radiation responses  

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

integrated genetics approach to systemic low-dose radiation responses integrated genetics approach to systemic low-dose radiation responses G. Huang 1 , Y. Huang 1 , D.H. Nguyen 1 , K. Bjornstad 1 , C. Rosen 1 , P. Chang 2 , R. DelRosario 3 , Do Yup Lee 1 , B. Bowen 1 , W. Reindl 1 , J. Mott 1 , A. Balmain 3 , M.H. Barcellos-Hoff 4 , Joe W Gray 1,5 , Mina Bissell 1 , Gary Karpen 1 , T. Northen 1 , E. A. Blakely 1 , J. H. Mao 1 1 Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 2 SRI International, Menlo Park, CA

210

A subnet based approach to reducing traffic in peer-to-peer systems  

E-Print Network [OSTI]

A SUBNET BASED APPROACH TO REDUCING TRAFFIC IN PEER-TO-PEER SYSTEMS A Thesis by JASON ALLAN PATRAO Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 2002 Major Subject: Computer Science ABSTRACT A Subnet-based Approach to Reduce Network Traf lie in Large-Scale Peer-to-Peer Systems. (December 2002) Jason Allan Patrao, B. E. , University of Bombay Chair of Advisory Committee: Dr...

Patrao, Jason Allan

2012-06-07T23:59:59.000Z

211

A common approach in systems biology is to assume we can understand a complex system by studying its simpler  

E-Print Network [OSTI]

response speed in wash 路 Load demands a higher amount of inducer in the to obtain a steady-state response its simpler subsystems. This approach demands an underlying assumption of Modularity, the idea both the dynamic as well as the steady state response of the upstream system. Abstract Impact

Del Vecchio, Domitilla

212

Effective Hamiltonian approach to the Kerr nonlinearity in an optomechanical system  

SciTech Connect (OSTI)

Using the Born-Oppenheimer approximation, we derive an effective Hamiltonian for an optomechanical system that leads to a nonlinear Kerr effect in the system's vacuum. The oscillating mirror at one edge of the optomechanical system induces a squeezing effect in the intensity spectrum of the cavity field. A near-resonant laser field is applied at the other edge to drive the cavity field in order to enhance the Kerr effect. We also propose a quantum-nondemolition-measurement setup to monitor a system with two cavities separated by a common oscillating mirror based on our effective Hamiltonian approach.

Gong, Z. R.; Ian, H.; Sun, C. P. [Advanced Science Institute, Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-0198 (Japan); Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080 (China); Liu Yuxi [Advanced Science Institute, Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-0198 (Japan); Institute of Microelectronics, Tsinghua University, Beijing 100084 (China); Nori, Franco [Advanced Science Institute, Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-0198 (Japan); Center for Theoretical Physics, Physics Department, University of Michigan, Ann Arbor, Michigan 48109-1040 (United States)

2009-12-15T23:59:59.000Z

213

The Born-Oppenheimer Approach to the Matter-Gravity System and Unitarity  

E-Print Network [OSTI]

The Born-Oppenheimer approach to the matter-gravity system is illustrated and the unitary evolution for matter, in the absence of phenomena such as tunnelling or other instabilities, verified. The Born-Oppenheimer approach to the matter-gravity system is illustrated in a simple minisuperspace model and the corrections to quantum field theory on a semiclassical background exhibited. Within such a context the unitary evolution for matter, in the absence of phenomena such as tunnelling or other instabilities, is verified and compared with the results of other approaches. Lastly the simplifications associated with the use of adiabatic invariants to obtain the solution of the explicitly time dependent evolution equation for matter are evidenced.

C. Bertoni; F. Finelli; G. Venturi

1996-07-12T23:59:59.000Z

214

FORMAL MODELS OF QUALITY AND ISO 9000 COMPLIANCE: AN INFORMATION SYSTEMS APPROACH  

E-Print Network [OSTI]

FORMAL MODELS OF QUALITY AND ISO 9000 COMPLIANCE: AN INFORMATION SYSTEMS APPROACH Henry M. Kim & Mark S. Fox Department of Industrial Engineering University of Toronto 4 Taddle Creek Road Toronto about quality. The body of knowledge thus formalized is structured into: TOVE Quality Ontology

Fox, Mark S.

215

An Information Theoretic Approach to Adaptive System Training Using Unlabeled Data  

E-Print Network [OSTI]

the training data and the unlabeled novel testing data to adjust the classifier weights. One big advantageAn Information Theoretic Approach to Adaptive System Training Using Unlabeled Data Kyu-Hwa Jeong, Jian-Wu Xu, Jose C. Principe Computational NeuroEngineering Laboratory Department of Electrical

Slatton, Clint

216

Inter-Organizational Information System Architecture: A Service-Oriented Approach  

E-Print Network [OSTI]

Inter-Organizational Information System Architecture: A Service-Oriented Approach Mohammad Kazem as process- centric architecture and continuous business process improvement. We claim that the service-oriented with IOISs requirements, we propose a service-oriented IOIS architecture composed of business service

Boyer, Edmond

217

Synergistic approaches to mobile intelligent transportation systems considering low penetration rate  

Science Journals Connector (OSTI)

This paper investigates the effect of low penetration rate on mobile phone-based traffic state estimation (M-TES) models. Synergistic approaches, including an appropriate genetic algorithm (GA) based velocity-density estimation model and a notable artificial ... Keywords: Low penetration rate, Mobile intelligent transportation systems (MIT), Mobile probe, Traffic state estimation

T. M. Quang; Muhammad Ariff Baharudin; Eiji Kamioka

2014-02-01T23:59:59.000Z

218

Power-Saving Approaches and Tradeoffs for Storage Systems BEN BUZBEE, Florida State University  

E-Print Network [OSTI]

of the legacy storage stack, exploring tradeoffs made by a representative set of energy-efficient storage to a fixed power infrastructure, limited battery density, etc.), has created a need for more energy-efficientPower-Saving Approaches and Tradeoffs for Storage Systems BEN BUZBEE, Florida State University

Wang, Andy

219

Energy Aware Paradigm for Energy Efficient ICT: a Systemic Approach Sergio Ricciardi  

E-Print Network [OSTI]

(Green House Gases) emissions [1]. Thus, the reduction and optimization of energy consumption are arising and green energy use in network infrastructure with the dual objective of minimizing energy consumptionEnergy Aware Paradigm for Energy Efficient ICT: a Systemic Approach Sergio Ricciardi Technical

Polit猫cnica de Catalunya, Universitat

220

Minimizing Energy Consumption in a Water Distribution System: A Systems Modeling Approach  

E-Print Network [OSTI]

In a water distribution system from groundwater supply, the bulk of energy consumption is expended at pump stations. These pumps pressurize the water and transport it from the aquifer to the distribution system and to elevated storage tanks. Each...

Johnston, John

2011-08-08T23:59:59.000Z

Note: This page contains sample records for the topic "whole-house systems approach" 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

Cyber-Physical System Requirements -A Model Driven Approach Cyber-physical systems (CPS) networked  

E-Print Network [OSTI]

systems such as infusion pumps. Complete and consistent requirements are central to analysis. A generic patient controlled analgesia (GPCA) infusion pump system was used as a case example to provide: Generic Patient Controlled Analgesia Infusion Pump System. Figure: Infusion Pump Plant Model. Figure

Minnesota, University of

222

Building America Whole-House Solutions for New Homes: Nexus EnergyHomes- Frederick, Maryland  

Broader source: Energy.gov [DOE]

This new duplex home successfully combines affordability with state-of-the-art efficiency and indoor environmental quality, achieving the highest rating possible under the National Green Building Standard

223

Building America Whole-House Solutions for Existing Homes: Evaluation of a Multifamily Retrofit  

Broader source: Energy.gov [DOE]

Evaluation of a Multifamily Retrofit in Climate Zone 5, Boulder, Colorado (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)

224

New Whole-House Solutions Case Study: Pulte Homes and Communities...  

Energy Savers [EERE]

of 185 homes in Las Vegas that achieved HERS scores of 54 to 66 without photovoltaic solar panels, or less than 44 with PV. Pulte sought LEED certification and the...

225

Building America Whole-House Solutions for New Homes: David Weekely Homes, Houston, Texas  

Broader source: Energy.gov [DOE]

Case study of David Weekley Homes, who worked with Building America research partner Building Science Corporation to design HERS-59 homes with advanced framed walls, airtight drywall, and rigid foam wall sheathing.

226

Building America Whole-House Solutions for New Homes: Winchester Homes and Camberley Homes  

Broader source: Energy.gov [DOE]

In this project, Winchester/Camberley Homes worked with Partnership for Home Innovation team to develop and test a new set of high performance homes designs and techniques that could be applied on a production scale, including advanced framing and materials and innovative work scopes. The test home compared theoretical performance characteristics with measured results.

227

Building America Whole-House Solutions for New and Existing Homes...  

Energy Savers [EERE]

a community in Tacoma Washington.Research focuses on the modeled and measured energy usage of the first six phases of construction, and compares the energy usage of those phases...

228

Building America Whole-House Solutions for New Homes: Tindall Homes, Columbus, New Jersey  

Broader source: Energy.gov [DOE]

Case study of Tindall Homes who worked with Building America research team IBACOS to build 20 HERS-58 homes with R-49 mixed attic insulation, poly-iso foam in advanced framed walls, precast concrete basement walls with rigid foam, tight airsealing, and HRVs

229

Building America Whole-House Solutions for New Homes: Schneider Homes, Burien, Washington  

Broader source: Energy.gov [DOE]

Case study of Schneider Homes who worked with Building America research partner WSU Extension Energy Office to design HERS 65 homes with high-efficiency furnaces in an air- sealed garage closet with ducts in conditioned space, 80% CFL lighting, ENERGY STAR appliances, air-tight drywall, and air sealing of attic hatches.

230

Building America Whole-House Solutions for New Homes: S & A Homes, Pittsburgh, Pennsylvania  

Broader source: Energy.gov [DOE]

Case study of S&A Homes who worked with Building America research partner IBACOS to design urban infill HERS-51 homes with compact duct layout in conditioned space, foam insulated precast concrete foundations, high-efficiency HVAC, and tankless water heaters.

231

Building America Whole-House Solutions for New Homes: Imagine Homes, San Antonio, Texas  

Broader source: Energy.gov [DOE]

Case study of Imagine Homes, who worked with the Building America research partner IBACOS to build HERS-52 homes with spray foam-insulated attics and central fan-integrated supply ventilation.

232

Building America Whole-House Solutions for New Home: Fort Devens...  

Energy Savers [EERE]

incorporated efficiency upgrades to achieve a HERS Index score of 41 before adding renewables. Fort Devens: Cold Climate Market-Rate Townhomes Targeting HERS Index of 40 -...

233

New Whole-House Solutions Case Study: CDC Realty Inc., Tucson...  

Energy Savers [EERE]

foam provides a continuous insulation layer to prevent thermal bridging which is the transfer of heat through the walls at the wood framing. All of the homes are plumbed for...

234

New Whole-House Solutions Case Study: New Tradition Homes, Vancouver...  

Energy Savers [EERE]

separates the foundation stem wall from the sill plate. A code-required layer of 6-mil plastic covers the crawlspace ground, with all sides sealed up the foundation wall....

235

Building America Whole-House Solutions for New Homes: Insight Homes, Seaford, Delaware  

Broader source: Energy.gov [DOE]

Case study of Insight Homes, who worked with the Building America research partner IBACOS to design HERS-49 homes with high-efficiency HVAC, ducts in insulated crawl spaces, raised heel trusses, dehumidifiers, and central manifold plumbing.

236

Improving Comfort in Hot-Humid Climates with a Whole-House, Windermere...  

Energy Savers [EERE]

Efficiency Measure (including labor): 2,600 Projected Energy Savings: 8.2% reduction in air conditioning Projected Energy Cost Savings: 53year Other Benefits: * Improved...

237

Building America Whole-House Solutions for New Homes: Tommy Williams...  

Energy Savers [EERE]

homes with foam gaskets at sill and top plates, fresh air intakes, SEER 16HSPF 9.5 heat pumps, and tight air sealing of 2.7 ACH50. Tommy Williams Homes: Longleaf Village &...

238

Building America Whole-House Solutions for New Homes: Pine Mountain...  

Energy Savers [EERE]

air-tight 1.0-1.8 ACH50 construction, spray-foamed walls and attics, and high-efficiency heat pumps with fresh-air intake. Pine Mountain Builders - Georgia More Documents &...

239

Building America Whole-House Solutions for New Homes: Green Coast Enterprises, New Orleans, Louisiana  

Broader source: Energy.gov [DOE]

Case study of Green Coast Enterprises, who worked with Building America research partner Building Science Corporation to build moisture- and flood-resistant HERS- 65 affordable homes on pier foundations, with borate pressure-treated lumber, wind-resistant OSB sheathing, hurricane strapping, roofing membrane, and closed-cell spray foam in attic, walls, and under floor.

240

Whole House Thermal Performance of Asphalt Shingles Exploiting Special Infrared Reflective Pigments  

E-Print Network [OSTI]

are single-family detached houses (State of California 2000). In California, residential air-conditioning loads represent almost 14% of the summer peak demand, the equivalent of over 7,000 MW of peak capacity during a hot California summer day... surface temperatures reduce the cooling- energy demand of the building and could increase the life of the roof product. However, determining the effects of climate and solar exposure on reflectance and color variability over time is of paramount...

Hahn, L.; Miller, W.; Desjarlais, A.; Jacobs, J.; Youngquist, A.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "whole-house systems approach" 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

Building America Whole-House Solutions for New Homes: Artistic Homes, Albuquerque, New Mexico  

Broader source: Energy.gov [DOE]

Case study of Artistic Homes who worked with Building America research partners Building Science Corporation and BIRA to design homes that achieve HERS

242

Engineering economic assessment of whole-house residential wood heating in New York  

Science Journals Connector (OSTI)

Abstract Wood devices increasingly are being used for residential space heating in New York. Motivations include avoiding high and variable fuel costs, promoting energy independence, mitigating climate change, and stimulating local economic development. In this study, the influence of fuel prices, device costs, and device efficiencies on heating costs was examined. Lifetime costs of alternative heating technologies were calculated for a house in Syracuse, New York. Calculations were repeated to explore discount rates and fuel price projections. Combinations of wood price and device cost and efficiency were identified at which wood is competitive with other fuels. The results suggest that fuel costs drive competitiveness more than capital and installation costs. At typical wood prices, natural gas often is the least expensive option. Many rural areas do not have access to gas, however, and high-efficiency wood-heating devices can be very competitive with heat pumps, propane boilers, and fuel-oil boilers. Availability of low-cost or on-site wood can make wood the least expensive option. However, even 揻ree wood is not free when the equipment, labor, space and time required are considered. Furthermore, efficiencies of wood devices and their pollutant emissions can differ greatly. High emission rates have led to restrictions on use of specific wood-heating devices in some locations. Improved information and tools should be available to consumers for evaluating the suitability of wood heating for their particular situations. The work presented here is an example of such information.

Daniel H. Loughlin; Rebecca S. Dodder

2014-01-01T23:59:59.000Z

243

Building America Whole-House Solutions for New Homes: John Wesley Miller, Tucson, Arizona  

Broader source: Energy.gov [DOE]

Case study of John Wesley Miller Companies, who worked with the NAHBRC to build two net-zero energy homes with foam-sheathed masonry walls, low-E windows 2.9 ACH50 air sealing, transfer grilles, ducts in insulated attic, PV, and solar water heating.

244

Building America Whole-House Solutions for New Homes: New Traditions, Vancouver, Washington  

Broader source: Energy.gov [DOE]

Case study of New Tradition Homes who worked with Building America partner WSU Energy Extension to design HERS-65 homes with ducts in conditioned space, site grading and drain piping, and high-efficiency HVAC.

245

Building America Whole-House Solutions for New Homes: Grupe, Rocklin, California  

Broader source: Energy.gov [DOE]

Case Study of Grupe who worked with Building America research partner Davis Energy Group to design HERS-54 homes that included PV roof tiles, SmartVent night ventilation cooling; and FreshVent continuous ventilation.

246

Building America Whole-House Solutions for New Homes: Rural Development, Inc., Greenfield, Massachusetts  

Broader source: Energy.gov [DOE]

Case study of Rural Development Inc. who worked with Building America research partner CARB to design affordable HERS-8 homes (60 w/o PV), with double-stud walls heavy insulation, low-load sealed-combustion gas space heaters, triple-pane windows, solar water heating, and PV.

247

Building America Whole-House Solutions for New Homes: Nexus EnergyHome...  

Energy Savers [EERE]

indoor environmental quality, achieving the highest rating possible under the National Green Building Standard Nexus EnergyHomes - Frederick, Maryland More Documents &...

248

Building America Whole-House Solutions for New Homes: Devoted Builders, LLC, Pasco, Washington  

Broader source: Energy.gov [DOE]

Case study of Devoted Builders who worked with Building America research partner WSU Extension Energy Office to design HERS-54 duplexes with ICF walls, high-efficiency mini-split heat pumps, ERVs, and a spray-foam plus blown cellulose covered ceiling deck.

249

Building America Whole-House Solutions for New Homes: Nelson Construction, Farmington, Connecticut  

Broader source: Energy.gov [DOE]

Case study of Nelson Construction, who worked with the Building America research partner Building Science Corporation to design ten HERS 53 homes with ICF foundations, foam-sheathed above-grade walls, and high-effciency furnaces with fresh air intake and jump ducts.

250

Building America Whole-House Solutions for New Homes: Tom Walsh & Co., Portland, Oregon  

Broader source: Energy.gov [DOE]

Case study of Tom Walsh & Co., who worked with Building America research partner BIRA to design HERS 59 homes with ducts in conditioned space in dropped ceiling soffits, extensive air sealing, and extensve site water management.

251

Building America Whole-House Solutions for New Homes: Tommy Williams Homes, Gainesville, Florida  

Broader source: Energy.gov [DOE]

Case study of Tommy Williams Homes who partnered with Building America to build HERS-58 homes with foam gaskets at sill and top plates, fresh air intakes, SEER 16/HSPF 9.5 heat pumps, and tight air sealing of 2.7 ACH50.

252

Building America Whole-House Solutions for New Homes: Treasure Homes, Sacramento, California  

Broader source: Energy.gov [DOE]

Case study of Treasure Homes, who worked with SMUD, DOE, NREL, and ConSol to build HERS-54 homes with high-efficiency HVAC, ducts buried in attic insulation, SmartVent cooling, and rooftop PV.

253

Building America Whole-House Solutions for New Homes: CDC Realty Inc., Tucson, Arizona  

Broader source: Energy.gov [DOE]

Case study of CDC Realty Inc. who worked with Building America research partner Building Science Corporation to design HERS-54 homes with ducts in insulated attics, solar water heating, tight air sealing, and rigid foam exterior sheathing.

254

Building America Whole-House Solutions for New Homes: Meeting DOE Challenge Homes Program Certification  

Broader source: Energy.gov [DOE]

Three production home builders桲. Hovnanian Homes, David Weekley Homes, and Transformations, Inc.梡artnered with Building America team Building Science Corporation to evaluate the certification of five test homes to the new DOE Challenge Home program performance standard (now DOE Zero Energy Ready Home program). The builders identified key benefits and barriers that impacted the certification of the test homes, and the likelihood of whether DOE Challenge Home certification would be pursued in future homes.

255

Buildng America Whole-House Solutions for New Homes: William Ryan Homes, Tampa, Florida  

Broader source: Energy.gov [DOE]

Case study of William Ryan Homes, who worked with Building America research partner CARB to design HERS-65 homes with energy-efficient heat pumps and programmable thermostats with humidity controls, foam-filled concrete block walls, draining house wrap, and airsealed kneewalls.

256

Building America Whole-House Solutions for New Homes: New Traditions...  

Office of Environmental Management (EM)

with ducts in conditioned space, site grading and drain piping, and high-efficiency HVAC. New Tradition Homes: Landover Commons - Vancouver, WA More Documents & Publications...

257

Building America Whole-House Solutions for New Homes: Pulte Homes...  

Office of Environmental Management (EM)

America team Building Science Corporation to design HERS-54 homes with high-efficiency HVAC with ducts in conditioned space, jump ducts, and a fresh air intake; advanced framed...

258

Building America Whole-House Solutions for New Homes: S & A Homes...  

Office of Environmental Management (EM)

in conditioned space, foam insulated precast concrete foundations, high-efficiency HVAC, and tankless water heaters. S&A Homes: East Liberty - Pittsburgh, PA More Documents &...

259

Building America Whole-House Solutions for New Homes: Urbane Homes, Louisville, Kentucky  

Broader source: Energy.gov [DOE]

Case study of Urbane Homes who worked with Building America research partner NAHBRC to build HERS-57 homes with rigid foam insulated slabs and foundation walls, advanced framed walls, high-efficiency heat pumps, and ducts in conditioned space.

260

Buildilng America Whole-House Solutions for New Homes: Hood River...  

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

R-Value assemblies, extremely tight construction, high performance doors and windows, solar thermal DHW, heat recovery ventilation, moveable external shutters and a high...

Note: This page contains sample records for the topic "whole-house systems approach" 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

New Whole-House Solutions Case Study: William Ryan Homes, Tampa...  

Energy Savers [EERE]

rigid foam to provide a continuous air barrier around attic rooms. * Radiant barriers, light-colored reflective shingles, and tinted windows help reduce solar heat gain....

262

Building America Whole-House Solutions for New Homes: Tom Walsh...  

Energy Savers [EERE]

in conditioned space in dropped ceiling soffits, extensive air sealing, and extensve site water management. Tom Walsh & Co.: New Columbia - Portland, Oregon More Documents &...

263

New Whole-House Solutions Case Study: Tom Walsh & Co., Portland...  

Energy Savers [EERE]

caulking all penetrations * Windows: Double-pane, U 0.29 Lighting, Appliances, and Water Heating: * 100% compact fluorescent lighting * 62% efficient gas water heater * ENERGY...

264

Building America Best Practices Series Volume 16: 40% Whole-House...  

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

and construct highly energy-efficient homes, while addressing building durability, indoor air quality, and occupant health, safety, and comfort. With the measures described in this...

265

Building America Whole-House Solutions for New Homes: Green Coast...  

Energy Savers [EERE]

Green Coast Enterprises - New Orleans, Louisiana High Performance Builder Spotlight: Green Coast Enterprises - New Orleans, Louisiana DOE Zero Energy Ready Home Case Study,...

266

Building America Whole-House Solutions for New Homes: Pine Mountain Builders, Pine Mountain, Georgia  

Broader source: Energy.gov [DOE]

Case study of Pine Mountain Builders who worked with Building America research partners IBACOS and Southface Energy Institute to design HERS-59 homes with air-tight 1.0-1.8 ACH50 construction, spray-foamed walls and attics, and high-efficiency heat pumps with fresh-air intake.

267

Building America Whole-House Solutions for New Homes: Shaw Construction, Aspen, Colorado  

Broader source: Energy.gov [DOE]

Case study of Shaw Construction who worked with Building America research partner Building Science Corporation to design affordable HERS-54 townhouses with central solar radiator space heating, PV, R-28 closed-cell spray foam under slab and R-26 in advanced framed walls, and rigid polyiso on inside of basement walls.

268

Born-Oppenheimer approximation for open quantum systems within the quantum trajectory approach  

E-Print Network [OSTI]

Based on the quantum trajectory approach, we extend the Born-Oppenheimer (BO) approximation from closed quantum system to open quantum system, where the open quantum system is described by a master equation in Lindblad form. The BO approximation is defined and the validity condition is derived. We find that the dissipation in fast variables benefits the BO approximation that is different from the dissipation in slow variables. A detailed comparison between this extension and our previous approximation (that is based on the effective Hamiltonian approach, see X. L. Huang and X. X. Yi, Phys. Rev. A 80, 032108 (2009)) is presented. Several new features and advantages are analyzed, which show that the two approximations are complementary to each other. Two examples are taken to illustrate our method.

X. L. Huang; S. L. Wu; L. C. Wang; X. X. Yi

2010-04-17T23:59:59.000Z

269

A rough set-based incremental approach for learning knowledge in dynamic incomplete information systems  

Science Journals Connector (OSTI)

Abstract With the rapid growth of data sets nowadays, the object sets in an information system may evolve in time when new information arrives. In order to deal with the missing data and incomplete information in real decision problems, this paper presents a matrix based incremental approach in dynamic incomplete information systems. Three matrices (support matrix, accuracy matrix and coverage matrix) under four different extended relations (tolerance relation, similarity relation, limited tolerance relation and characteristic relation), are introduced to incomplete information systems for inducing knowledge dynamically. An illustration shows the procedure of the proposed method for knowledge updating. Extensive experimental evaluations on nine UCI datasets and a big dataset with millions of records validate the feasibility of our proposed approach.

Dun Liu; Tianrui Li; Junbo Zhang

2014-01-01T23:59:59.000Z

270

The quantum bit commitment: a finite open system approach for a complete classification of protocols  

E-Print Network [OSTI]

Mayers, Lo and Chau argued that all quantum bit commitment protocols are insecure, because there is no way to prevent an Einstein-Podolsky-Rosen (EPR) cheating attack. However, Yuen presented some protocols which challenged the previous impossibility argument. Up to now, it is still debated whether there exist or not unconditionally secure protocols. In this paper the above controversy is addressed. For such purpose, a complete classification of all possible bit commitment protocols is given, including all possible cheating attacks. Focusing on the simplest class of protocols (non-aborting and with complete and perfect verification), it is shown how naturally a game-theoretical situation arises. For these protocols, bounds for the cheating probabilities are derived, involving the two quantum operations encoding the bit values and their respective alternate Kraus decompositions. Such bounds are different from those given in the impossibility proof. The whole classification and analysis has been carried out using a "finite open system" approach. The discrepancy with the impossibility proof is explained on the basis of the implicit adoption of a "closed system approach"--equivalent to modeling the commitment as performed by two fixed machines interacting unitarily in a overall "closed system"--according to which it is possible to assume as "openly known" both the initial state and the probability distributions for all secret parameters, which can be then "purified". This approach is also motivated by existence of unitary extensions for any open system. However, it is shown that the closed system approach for the classification of commitment protocols unavoidably leads to infinite dimensions, which then invalidate the continuity argument at the basis of the impossibility proof.

Giacomo Mauro D'Ariano

2002-09-26T23:59:59.000Z

271

A system dynamics approach to intermodalism at the Port of Lewiston  

SciTech Connect (OSTI)

Intermodalism refers to interconnections among modes of transportation, e.g., road, rail, water, and air. Effective intermodal planning must cross boundaries between the public and private sectors as well as transportation modes. The development of an effective and efficient intermodal transportation system requires the identification of barriers to intermodal transportation and the investigation of the impact of proposed changes in infrastructure development, policies, regulations, and planning. A systems approach is necessary to adequately represent the interaction between the sometimes incompatible concerns of all modes and stakeholders. A systems dynamics model of intermodalism at the Port of Lewiston has been developed to highlight leverage points, hidden assumptions, second order effects resulting from feedback loops and system drivers. The purpose of this document is to present the results of the system dynamics model work.

Sebo, D.

1996-08-01T23:59:59.000Z

272

Ventilation Systems for Cooling | Department of Energy  

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

Ventilation Systems for Cooling Ventilation Systems for Cooling Ventilation Systems for Cooling May 30, 2012 - 6:19pm Addthis Proper ventilation helps you save energy and money. | Photo courtesy of JD Hancock. Proper ventilation helps you save energy and money. | Photo courtesy of JD Hancock. Ventilation is the least expensive and most energy-efficient way to cool buildings. Ventilation works best when combined with methods to avoid heat buildup in your home. In some cases, natural ventilation will suffice for cooling, although it usually needs to be supplemented with spot ventilation, ceiling fans, and window fans. For large homes, homeowners might want to investigate whole house fans. Interior ventilation is ineffective in hot, humid climates where

273

Ventilation Systems for Cooling | Department of Energy  

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

Ventilation Systems for Cooling Ventilation Systems for Cooling Ventilation Systems for Cooling May 30, 2012 - 6:19pm Addthis Proper ventilation helps you save energy and money. | Photo courtesy of JD Hancock. Proper ventilation helps you save energy and money. | Photo courtesy of JD Hancock. Ventilation is the least expensive and most energy-efficient way to cool buildings. Ventilation works best when combined with methods to avoid heat buildup in your home. In some cases, natural ventilation will suffice for cooling, although it usually needs to be supplemented with spot ventilation, ceiling fans, and window fans. For large homes, homeowners might want to investigate whole house fans. Interior ventilation is ineffective in hot, humid climates where

274

Born-Oppenheimer approximation for open quantum systems within the quantum trajectory approach  

SciTech Connect (OSTI)

Using the quantum trajectory approach, we extend the Born-Oppenheimer (BO) approximation from closed to open quantum systems, where the open quantum system is described by a master equation in Lindblad form. The BO approximation is defined and the validity condition is derived. We find that the dissipation in fast variables improves the BO approximation, unlike the dissipation in slow variables. A detailed comparison is presented between this extension and our previous approximation based on the effective Hamiltonian approach [X. L. Huang and X. X. Yi, Phys. Rev. A 80, 032108 (2009)]. Several additional features and advantages are analyzed, which show that the two approximations are complementary to each other. Two examples are described to illustrate our method.

Huang, X. L.; Wu, S. L.; Wang, L. C.; Yi, X. X. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)

2010-05-15T23:59:59.000Z

275

A new simulation approach and its integration with perturbation analysis in tandem queueing systems  

E-Print Network [OSTI]

. (August 1992) Ki- Young Jeong, B. E. (Industrial Engr. ), Korea University, Korea Chair of Advisory Committee: Dr. Don T, Phillips This research presents a new simulation approach (NSA) to a single-server tandem queueing system (TQS) and empirically... resource, a single name can be assigned to several different resource types with each resource having its own capacity. 2. 1. 2. Components and structures of an EDSA The following components and structures of an EDSA are well explained by Law P. aw...

Jeong, Ki-Young

1992-01-01T23:59:59.000Z

276

Bioinspired Approach to Multienzyme Cascade System Construction for Efficient Carbon Dioxide Reduction  

Science Journals Connector (OSTI)

Bioinspired Approach to Multienzyme Cascade System Construction for Efficient Carbon Dioxide Reduction ... In our previous studies, spatially separated enzymatic systems, mimicking natural enzyme organization, were developed by using several kinds of organic杋norganic hybrid microcapsules. ... Briefly, immobilized-enzyme-containing solution (1 mL, 50 mM PBS, pH 7.0) was bubbled with CO2 gas for 0.5 h, and then NADH solution (1 mL, 50 mM PBS, pH 7.0) was added to initiate the reaction. ...

Xiaoli Wang; Zheng Li; Jiafu Shi; Hong Wu; Zhongyi Jiang; Wenyan Zhang; Xiaokai Song; Qinghong Ai

2014-02-12T23:59:59.000Z

277

Abstract A34: Novel chemical systems biology approach with the Berg Interrogative Biology platform provides a window into hallmark shift in cancer metabolism  

Science Journals Connector (OSTI)

...Abstract A34: Novel chemical systems biology approach...Interrogative Biology platform provides a window into...Sarangarajan. Novel chemical systems biology approach...Interrogative Biology platform provides a window into...Special Conference on Chemical Systems Biology: Assembling...

Niven R. Narain; Vivek K. Vishnudas; Viatscheslav R. Akmaev; and Rangaprasad Sarangarajan

278

Exact Canonically Conjugate Momenta Approach to a One-Dimensional Neutron-Proton System, I  

E-Print Network [OSTI]

Applying Tomonaga's idea to nuclei with the aid of Sunakawa's method, we developed a collective description of nuclear surface oscillations. It gives a microscopic foundation of nuclear collective motions in relation to Bohr-Mottelson model. Introducing collective variables, collective description is formulated with the first quantized language, contrary to the second quantized manner in Sunakawa's method for a Bose system. It overcomes difficulties remaining in traditional theoretical treatments of nuclear collective motions: Collective momenta in Tomonaga's manner are not exact canonically conjugate to collective coordinates and they are not independent. In contrast to the above collective description, Tomonaga first gave the another basic idea to approach elementary excitations in a Fermi system. The similar idea was also proposed by Luttinger. The Sunakawa's method for a Fermi system is anticipated to work well for such a problem. In this paper, on the isospin space, we define a density operator and following Tomonaga, introduce collective momentum. Then we develop an exact canonically momenta approach to a one-dimensional neutron-proton system.

Seiya Nishiyama; Joao da Providencia

2014-10-12T23:59:59.000Z

279

Synergistic approaches to mobile intelligent transportation systems considering low penetration rate  

Science Journals Connector (OSTI)

This paper investigates the effect of low penetration rate on mobile phone-based traffic state estimation (M-TES) models. Synergistic approaches, including an appropriate genetic algorithm (GA) based velocity杁ensity estimation model and a notable artificial neural network (ANN) based prediction method for unacceptably low penetration rate, are proposed. The GA-based traffic state estimation model not only improves the effectiveness but also reduces the critical penetration rate required in the M-TES model. When the critical penetration rate is reduced the error-tolerance and the scalability of the estimation model can be significantly improved. The ANN-based prediction approach is introduced to overcome the weakness remaining in the GA-based traffic state estimation model when the penetration rate becomes unacceptably low or unknown. In addition, the effect of related road segments on the prediction effectiveness is thoroughly discussed. This work, therefore, provides practical instructions in narrowing the search space for finding prediction rules of the ANN model, thus improving the computational performance without compromising the prediction accuracy. The experimental evaluations confirm the effectiveness as well as the robustness of the proposed approaches. As a result, this research contributes to accelerating the realization of mobile phone-based intelligent transportation systems (M-ITS) or, of the M-TES systems in specific, since the essential issue of low penetration rate has been solved.

T.M. Quang; Muhammad Ariff Baharudin; Eiji Kamioka

2014-01-01T23:59:59.000Z

280

Safety System Oversight Program Assessment Criteria and Review Approach Document (CRAD), Revision 0  

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

of 7 of 7 Safety System Oversight (SSO) Program Implementation Assessment Criteria and Review Approach Documents (CRADs) Revision 0 PROGRAM (PGM) OBJECTIVE PGM.1 An effective SSO Program is established by the Field Element Manager to apply engineering expertise to maintain safety system configuration and to assess system condition and effectiveness of safety management program implementation. Criteria PGM.1.1 The SSO Qualification Program is part of the Technical Qualification Program (DOE M 426.1-1A, Chapter III, Section 1, 2.b (1)). PGM.1.2 The SSO Program establishes appropriate training, qualification, and performance requirements for SSO personnel and the supervisors are held accountable for achieving them (DOE M 426.1-1A, Chapter III, Section 1, 2.b

Note: This page contains sample records for the topic "whole-house systems approach" 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

Exact Canonically Conjugate Momenta Approach to a One-Dimensional Neutron-Proton System, I  

E-Print Network [OSTI]

Applying Tomonaga's idea to nuclei with the aid of Sunakawa's method, we developed a collective description of nuclear surface oscillations. It gives a microscopic foundation of nuclear collective motions in relation to Bohr-Mottelson model. Introducing collective variables, collective description is formulated with the first quantized language, contrary to the second quantized manner in Sunakawa's method for a Bose system. It overcomes difficulties remaining in traditional theoretical treatments of nuclear collective motions: Collective momenta in Tomonaga's manner are not exact canonically conjugate to collective coordinates and they are not independent. In contrast to the above collective description, Tomonaga first gave the another basic idea to approach elementary excitations in a Fermi system. The similar idea was also proposed by Luttinger. The Sunakawa's method for a Fermi system is anticipated to work well for such a problem. In this paper, on the isospin space, we define a density operator and follo...

Nishiyama, Seiya

2014-01-01T23:59:59.000Z

282

A systems science approach to fatigue management in爎esearch and health care  

Science Journals Connector (OSTI)

Abstract The purpose of this article was to highlight innovative analytic approaches in symptom science. Complex systems modeling is discussed using fatigue as an example. Fatigue is a common symptom among individuals of any age. It can be acute or chronic, and it can vary across the day and on weekends compared with weekdays. Fatigue can overlap with other symptoms, has many dimensions, and impacts daily function as well as society at large. With the complexities surrounding symptom science, innovative models are needed to advance our understanding of factors within the person, contextual and situational factors, and workplace or health care system factors that impact the symptom experience. Advances in methodologies, such as complex systems modeling, allow for more innovative methods to study the complexities of the symptom experience, design better ways to intervene and manage symptoms, and ultimately improve outcomes related to symptom management, quality of life, and health care utilization.

Kathryn A. Lee; Oliwier Dziadkowiec; Paula Meek

2014-01-01T23:59:59.000Z

283

Heat exchanger optimization for geothermal district heating systems: A fuel saving approach  

Science Journals Connector (OSTI)

One of the most commonly used heating devices in geothermal systems is the heat exchanger. The output conditions of heat exchangers are based on several parameters. The heat transfer area is one of the most important parameters for heat exchangers in terms of economics. Although there are a lot of methods to optimize heat exchangers, the method described here is a fairly easy approach. In this paper, a counter flow heat exchanger of geothermal district heating system is considered and optimum design values, which provide maximum annual net profit, for the considered heating system are found according to fuel savings. Performance of the heat exchanger is also calculated. In the analysis, since some values are affected by local conditions, Turkey's conditions are considered.

Ahmet Dagdas

2007-01-01T23:59:59.000Z

284

High Level Computational Chemistry Approaches to the Prediction of Energetic Properties of Chemical Hydrogen Storage Systems  

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

Level Computational Chemistry Approaches Level Computational Chemistry Approaches to the Prediction of the Energetic Properties of Chemical Hydrogen Storage Systems David A. Dixon Chemistry, University of Alabama, Tuscaloosa, AL Cast: Myrna Hernandez-Matus, Daniel Grant, Jackson Switzer, Jacob Batson, Ronita Folkes, Minh Nguyen Anthony J. Arduengo & co-workers Maciej Gutowski (PNNL) Robert Ramsay Chair Fund Shelby Hall Funding provided in part by the Department of Energy, Office of Energy Efficiency and Renewable Energy under the Hydrogen Storage Grand Challenge, Solicitation No. DE-PS36- 03GO93013 Chemical H 2 Storage Center of Excellence The Promise of Chemical Hydrogen Storage * Chemical reaction releases H 2 at suitable pressures and temperatures - Reaction thermodynamics dictate max. H 2 pressure as function of T -

285

Determining the most sustainable lignocellulosic bioenergy system following a case study approach  

Science Journals Connector (OSTI)

Abstract The paradigm shift from fossil to renewable energy sources is driven, largely, by a growing sustainability awareness, necessitating more sophisticated measurements in terms of a wider range of criteria. Technical efficiency, financial profitability, environmental friendliness and social acceptance are some of the aspects determining the sustainability of renewable energy systems. The resulting complexity and sometimes conflicting nature of these criteria constitute major barriers to the implementation of renewable energy projects. The Worcester biomass procurement area in the Western Cape Province, South Africa, is used as a case study. It provides a blueprint for measuring the impacts of lignocellulosic bioelectricity systems using life-cycle assessment (LCA), multi-period budgeting (MPB), geographic information systems (GIS) and multi-criteria decision-making analysis (MCDA), among others and for prioritising the relevant criteria to determine the most sustainable technological option. Following the LCA approach, 37 plausible lignocellulosic bioenergy systems were assessed against five financial-economic, three socio-economic and five environmental criteria. On translating the quantitative performance data into a standardised 慶ommon language of relative performance, an expert group attached weights to the considered criteria, using the analytical hierarchy process (AHP). Assuming the prerequisite of financial-economic viability, the preferred option comprises a feller-buncher for harvesting, a forwarder for biomass extraction, mobile comminution at the roadside, secondary transport in truck-container-trailer combinations and an integrated gasification system for the conversion into electricity. This approach illustrates how to internalise externalities as typical market failures, aiding decision makers to choose the most sustainable bioenergy system.

C.C.C. von Doderer; T.E. Kleynhans

2014-01-01T23:59:59.000Z

286

Product-Service Systems. Using an Existing Concept as a New Approach to Sustainability  

Science Journals Connector (OSTI)

Product Service Systems (PS systems), though not new, are relatively new to be used as an approach to reach sustainability. This perspective of PS systems is presented. A PS system can be defined as a business innovation strategy offering a marketable mix of products and services jointly capable of fulfilling a client's needs and/or wants - with higher added value and a smaller environmental impact as compared to an existing system or product. A major element of a PS system is that a consumer's need is met by selling utility instead of providing a product. In essence the right of product ownership is shifted from a client to the producer or service provider. PS systems are reviewed in light of other environmental managementstrategies, and they are described in general. Company examples illustrate the potential benefits and motivations for a company to consider a shift to PS systems. The examples are classified in three categories: 1) Services providing value added to product: in which a company can sell additional services, such as a warrantee, to guarantee functionality and/or durability of a product which is owned by the consumer. 2) Services providing final results: in which a company can offer a customised mix of services, as a substitute for the purchasing and use of single products providing of a specific final result with a low-level of client participation; and 3) Services providing enabling platforms: in which a company can offer access to products, tools, opportunities or capabilities (platforms) that enable clients to get the results they want. Furthermore, it is discussed how PS systems are applicable in developing countries, and how PS systems, as an innovation strategy can present an opportunity to facilitate the process of industrialisation with less environmental impact, by jumping over or by passing the stage characterised by individual consumption/ownership of mass-produced goods towards the more advanced service-economy.

Ezio Manzini; Carlo Vezzoli; Garrette Clark

2001-01-01T23:59:59.000Z

287

2 PERVASIVE computing Published by the IEEE CS I 1536-1268/11/$26.00 2011 IEEE S M A R T E N E R G Y S Y S T E M S  

E-Print Network [OSTI]

for reducing build- ings' energy consumption is a practical method to monitor consumption. There are two-house energy consumption. This approach analyzes the whole-house data and matches step changes in power use complex instrumentation systems that individually meter each device's energy con- sumption2颅4 (see also

Han, Qi "Chee"

288

An Analysis of Residential Energy Intensity in Iran, A System Dynamics Approach  

E-Print Network [OSTI]

Abstract: substantial development of counties needs to use the resources in an efficient way. One indicator that shows the degree of efficient use of energy resources is energy intensity. Statistics show that Iran抯 energy intensity was in a bad situation during past years and if this manner of using energy resources continues, it will get worse.In this study a system dynamics approach is used to model changes of energy intensity in residential sector in Iran. By implementation and simulation of this model we found some reasons of this problem in Iran. Then we tried to introduce some policies to make steady improvement in energy intensity in the future. Keywords:

Mohamed M. Jamshidi

289

An integrated multivariate approach for performance assessment and optimisation of electricity transmission systems  

Science Journals Connector (OSTI)

This article introduces an integrated approach based on data envelopment analysis (DEA) and principal component analysis (PCA) for efficiency assessment, and optimisation in transmission systems that have been responsible for the transmission of electricity in Iran to show its applicability and superiority. Performance of 16 regional electricity companies was evaluated using the non-parametric technique of DEA. The result indicates that the performance of several companies is sub-optimal, suggesting the potential for significant cost reduction and reduction in employee number. The optimisation procedure in this article is followed from two different viewpoints, i.e. input efficiency and -cost. The result of DEA model is verified and validated by PCA through Spearman correlation experiment. Moreover, the proposed approach uses the measure-specific super-efficiency DEA model for sensitivity analysis to determine the critical inputs based on efficiency and cost allocation super-efficiency DEA model to determine the critical inputs based on cost. The unique feature of this study is utilisation of DEA model for assessment and determination of critical inputs and optimisation for the critical inputs from two different viewpoints, i.e. input-efficiency and -cost. This is the first study that introduces a total approach for performance assessment and optimisation of electricity transmission companies.

Ali Azadeh; Somayeh Ahmadi Movaghar

2010-01-01T23:59:59.000Z

290

A Monitoring Approach for Dynamic Service-Oriented Architecture Systems Yufang Dan, Nicolas Stouls, Stphane Frnot, and Christian Colombo  

E-Print Network [OSTI]

A Monitoring Approach for Dynamic Service-Oriented Architecture Systems Yufang Dan, Nicolas Stouls; OSGi; Larva. I. INTRODUCTION Service oriented architectures (SOA) is one of the current approaches Service-oriented Ar- chitecture(SOA), where services may dynamically appear or disappear transparently

Paris-Sud XI, Universit茅 de

291

General Approach for Deriving Reference Distribution Functions for Systems out of Equilibrium by Statistical Thermodynamics  

E-Print Network [OSTI]

A general approach for deriving the expression of reference (density of) distribution functions, F^0, by statistical thermodynamics and the definition of local equilibrium conditions is illustrated. Even though, this procedure may be adopted for a system subjected to an arbitrary number of thermodynamic forces, as a concrete example of application, we analyze the case of a system submitted to three independent thermodynamic forces and the local equilibrium corresponds to the configuration of minimum entropy production condition and the maximum entropy principle. In this limit case, we show that the derived expression of distribution function is more general than that one, which is currently used for fitting the numerical steady-state solution obtained by simulating the Ion Cyclotron Radiation Heating (ICRH) FAST-plasmas and for describing various scenarios of tokamak plasmas. Through kinetic theory, we fixed the free parameters linking them with the external energy sources. The inverse problem has also been a...

Sonnino, Giorgio; Tlidi, Mustapha; Peeters, Philippe; Steinbrecher, Gy鰎gy; Milovanov, Alexander

2012-01-01T23:59:59.000Z

292

A Systems-Integration Approach to the Optimal Design and Operation of Macroscopic Water Desalination and Supply Networks  

E-Print Network [OSTI]

With the escalating levels of water demand, there is a need for expansion in the capacity of water desalination infrastructure and for better management and distribution of water resources. This dissertation introduces a systems approach...

Atilhan, Selma

2012-02-14T23:59:59.000Z

293

A neural network based approach to estimate of power system harmonics for an induction furnace under the different load conditions  

Science Journals Connector (OSTI)

This study presents an artificial neural network based intelligent monitoring algorithm to detect of a power system harmonics. The proposed approach was tested on the current and voltage data of an induction furn...

Hayrettin Gokozan; Sezai Taskin; Serhat Seker; Huseyin Ekiz

2014-11-01T23:59:59.000Z

294

A Mixed Basis Density Functional Approach for Low Dimensional Systems with B-splines  

E-Print Network [OSTI]

A mixed basis approach based on density functional theory is employed for low dimensional systems. The basis functions are taken to be plane waves for the periodic direction multiplied by B-spline polynomials in the non-periodic direction. B-splines have the following advantages:(1) the associated matrix elements are sparse, (2) B-splines possess a superior treatment of derivatives, (3) B-splines are not associated with atomic positions when the geometry structure is optimized, making the geometry optimization easy to implement. With this mixed basis set we can directly calculate the total energy of the system instead of using the conventional supercell model with a slab sandwiched between vacuum regions. A generalized Lanczos-Krylov iterative method is implemented for the diagonalization of the Hamiltonian matrix. To demonstrate the present approach, we apply it to study the C(001)-(2x1) surface with the norm-conserving pseudopotential, the n-type delta-doped graphene, and graphene nanoribbon with Vanderbilt...

Ren, Chung-Yuan; Chang, Yia-Chung

2014-01-01T23:59:59.000Z

295

Real-space grids and the Octopus code as tools for the development of new simulation approaches for electronic systems  

E-Print Network [OSTI]

Real-space grids are a powerful alternative for the simulation of electronic systems. One of the main advantages of the approach is the flexibility and simplicity of working directly in real space where the different fields are discretized on a grid, combined with competitive numerical performance and great potential for parallelization. These properties constitute a great advantage at the time of implementing and testing new physical models. Based on our experience with the Octopus code, in this article we discuss how the real-space approach has allowed for the recent development of new ideas for the simulation of electronic systems. Among these applications are approaches to calculate response properties, modeling of photoemission, optimal control of quantum systems, simulation of plasmonic systems, and the exact solution of the Schr\\"odinger equation for low-dimensionality systems.

Andrade, Xavier; De Giovannini, Umberto; Larsen, Ask Hjorth; Oliveira, Micael J T; Alberdi-Rodriguez, Joseba; Varas, Alejandro; Theophilou, Iris; Helbig, Nicole; Verstraete, Matthieu; Stella, Lorenzo; Nogueira, Fernando; Aspuru-Guzik, Al醤; Castro, Alberto; Marques, Miguel A L; Rubio, 羘gel

2015-01-01T23:59:59.000Z

296

Simplified Approach to Implementing Controlled-Unitary Operations in a Two-Qubit System  

E-Print Network [OSTI]

We introduce a scheme for realizing arbitrary controlled-unitary operations in a two qubit system. If the 2 \\times 2 unitary matrix is special unitary (has unit determinant), the controlled-unitary gate operation can be realized in a single pulse operation. The pulse, in our scheme, will constitute varying one of the parameters of the system between an arbitrarily maximum and a "calculated" minimum value. This parameter will constitute the variable parameter of the system while the other parameters, which include the coupling between the two qubits, will be treated as fixed parameters. The values of the parameters are what we solve for using our approach in order to realize an arbitrary controlled-unitary operation. We further show that the computational complexity of the operation is no greater than that required for a Controlled-NOT (CNOT) gate. Since conventional schemes realize a controlled-unitary operation by breaking it into a sequence of single-qubit and CNOT gate operations, our method is an improvement because we not only require lesser time duration, but also fewer control lines, to implement the same operation. To demonstrate improvement over other schemes, we show, as examples, how two controlled-unitary operations, one being the controlled-Hadamard gate, can be realized in a single pulse operation using our scheme. Furthermore, our method can be applied to a wide range of coupling schemes and can be used to realize gate operations between two qubits coupled via Ising, Heisenberg and anisotropic interactions.

Preethika Kumar; Steven R. Skinner

2012-02-09T23:59:59.000Z

297

An assessment of governmental wind power programmes in Sweden梪sing a systems approach  

Science Journals Connector (OSTI)

The purpose of this paper is to assess the effects, the cost efficiency, and the goal achievement of policy instruments aimed for the development and deployment of wind power in Sweden during the period 1975 to 2000. The paper presents an empirical example of a socio-technical system-based approach for impact assessment, in which changes in the wind power system are described and analysed with respect to technology development, cost development and actors involvement. The results show that the policy instruments were not designed to have a broad, system-oriented perspective but targeted and included restricted technology concepts梚.e. large, two-bladed turbines梐nd limited involvement of actors. The assessment shows that early inflexible steering of technology and market development, together with a lack of comprehensive, long-term strategy, lack of continuity in policy interventions and weak combinations of policy programmes and measures have contributed to a very limited wind power development in Sweden. A rough cost efficiency analysis reveals that Sweden has much less wind power installed in relation to expenditures on various support than Germany and Spain. The Swedish policy instruments did, however, achieve the Government's goals to increase wind energy production.

K. 舠trand; L. Neij

2006-01-01T23:59:59.000Z

298

Reliability-based synthesis of non-linear stochastic dynamical systems: a global approximation approach  

Science Journals Connector (OSTI)

The paper presents an efficient methodology to carry out reliability-based structural optimisation of non-linear systems under stochastic loading. The optimisation problem is formulated as the minimisation of an objective function subject to multiple reliability constraints. The reliability constraints are given in terms of first excursion probabilities with large state-space dimensions. A sequential approximate optimisation scheme based on global approximations of the reliability constraints is implemented in the proposed formulation. The approximations of the first excursion probabilities in terms of the design variables are constructed by combining a global mixed linearisation approach with a reliability sensitivity analysis. The sensitivity of the first excursion probabilities are estimated by considering some statistics of an augmented reliability problem. The number of reliability estimations required during the optimal design process is generally very small. Two numerical examples are presented to illustrate the effectiveness of the method.

Hector A. Jensen; Macarena S. Ferre; Danilo S. Kusanovic

2010-01-01T23:59:59.000Z

299

Generalized Cauchy matrix approach for non-autonomous discrete Kadomtsev-Petviashvili system  

E-Print Network [OSTI]

In this paper, we investigate the non-autonomous discrete Kadomtsev-Petviashvili (KP) system in terms of generalized Cauchy matrix approach. These equations include non-autonomous bilinear lattice KP equation, non-autonomous lattice potential KP equation, non-autonomous lattice potential modified KP equation, non-autonomous asymmetric lattice potential modified KP equation, non-autonomous lattice Schwarzian KP equation and non-autonomous lattice KP-type Nijhoff-Quispel-Capel equation. By introducing point transformations, all the equations are described as simplified forms, where the lattice parameters are absorbed. Several kinds of solutions more than multi-soliton solutions to these equations are derived by solving determining equation set. Lax representations for these equations are also discussed.

Songlin Zhao; Wei Feng; Shoufeng Shen; Jun Zhang

2014-09-16T23:59:59.000Z

300

A Task-level Model for Optomotor Yaw Regulation in Drosophila Melanogaster: A Frequency-Domain System Identification Approach  

E-Print Network [OSTI]

-level locomotor behavior to a single-input颅single-output system [4]颅[6]. Optomotor yaw regulation has been studiedA Task-level Model for Optomotor Yaw Regulation in Drosophila Melanogaster: A Frequency-Domain System Identification Approach Eatai Roth1, Michael B. Reiser2, Michael H. Dickinson3, and Noah J. Cowan1

Note: This page contains sample records for the topic "whole-house systems approach" 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

Flexible design : an innovative approach for planning water infrastructure systems under uncertainty  

E-Print Network [OSTI]

This thesis develops a framework for a flexible design approach to support decision-making in water supply infrastructure planning. It contrasts with a conventional, deterministic planning approach that uses past data or ...

Wong, Melanie Kathleen

2013-01-01T23:59:59.000Z

302

GEOGRAPHIC INFORMATION SYSTEM APPROACH FOR PLAY PORTFOLIOS TO IMPROVE OIL PRODUCTION IN THE ILLINOIS BASIN  

SciTech Connect (OSTI)

Oil and gas have been commercially produced in Illinois for over 100 years. Existing commercial production is from more than fifty-two named pay horizons in Paleozoic rocks ranging in age from Middle Ordovician to Pennsylvanian. Over 3.2 billion barrels of oil have been produced. Recent calculations indicate that remaining mobile resources in the Illinois Basin may be on the order of several billion barrels. Thus, large quantities of oil, potentially recoverable using current technology, remain in Illinois oil fields despite a century of development. Many opportunities for increased production may have been missed due to complex development histories, multiple stacked pays, and commingled production which makes thorough exploitation of pays and the application of secondary or improved/enhanced recovery strategies difficult. Access to data, and the techniques required to evaluate and manage large amounts of diverse data are major barriers to increased production of critical reserves in the Illinois Basin. These constraints are being alleviated by the development of a database access system using a Geographic Information System (GIS) approach for evaluation and identification of underdeveloped pays. The Illinois State Geological Survey has developed a methodology that is being used by industry to identify underdeveloped areas (UDAs) in and around petroleum reservoirs in Illinois using a GIS approach. This project utilizes a statewide oil and gas Oracle{reg_sign} database to develop a series of Oil and Gas Base Maps with well location symbols that are color-coded by producing horizon. Producing horizons are displayed as layers and can be selected as separate or combined layers that can be turned on and off. Map views can be customized to serve individual needs and page size maps can be printed. A core analysis database with over 168,000 entries has been compiled and assimilated into the ISGS Enterprise Oracle database. Maps of wells with core data have been generated. Data from over 1,700 Illinois waterflood units and waterflood areas have been entered into an Access{reg_sign} database. The waterflood area data has also been assimilated into the ISGS Oracle database for mapping and dissemination on the ArcIMS website. Formation depths for the Beech Creek Limestone, Ste. Genevieve Limestone and New Albany Shale in all of the oil producing region of Illinois have been calculated and entered into a digital database. Digital contoured structure maps have been constructed, edited and added to the ILoil website as map layers. This technology/methodology addresses the long-standing constraints related to information access and data management in Illinois by significantly simplifying the laborious process that industry presently must use to identify underdeveloped pay zones in Illinois.

Beverly Seyler; John Grube

2004-12-10T23:59:59.000Z

303

China's approach to nuclear safety From the perspective of policy and institutional system  

Science Journals Connector (OSTI)

Abstract Nuclear energy plays an important role in the energy sector in the world. It has achieved a rapid development during the past six decades and contributes to over 11% of the world's electricity supply. On the other side, nuclear accidents have triggered substantial debates with a growing public concern on nuclear facilities. Followed by the Fukushima nuclear accident, some developed countries decided to shut down the existing nuclear power plants or to abandon plans to build new ones. Given this background, accelerating the development of nuclear power on the basis of safety in China will make it a bellwether for other countries. China assigns the top priority to the nuclear safety in nuclear energy development and has maintained a good record in this field. The policy and institutional system provide the necessary guarantee for the nuclear energy development and safety management. Furthermore, China's approach to nuclear safety provides a benchmark for the safe development and utilization of nuclear power. This research draws an overall picture of the nuclear energy development and nuclear safety in China from the policy and institutional perspective.

Ruimin Mu; Jian Zuo; Xueliang Yuan

2015-01-01T23:59:59.000Z

304

Mathematical Analysis of a Novel Approach to Maximize Waste Recovery in a Life Support System  

SciTech Connect (OSTI)

NASA has been evaluating closed-loop atmosphere revitalization architectures carbon dioxide, CO2, reduction technologies. The CO2 and steam, H2O, co-electrolysis process is another option that NASA has investigated. Utilizing recent advances in the fuel cell technology sector, the Idaho National Laboratory, INL, has developed a CO2 and H2O co-electrolysis process to produce oxygen and syngas (carbon monoxide, CO and hydrogen, H2 mixture) for terrestrial (energy production) application. The technology is a combined process that involves steam electrolysis, CO2 electrolysis, and the reverse water gas shift (RWGS) reaction. Two process models were developed to evaluate novel approaches for waster recovery in a life support system. The first is a model INL co-electrolysis process combined with a methanol production process. The second is the INL co-electrolysis process combined with a pressure swing adsorption (PSA) process. For both processes, the overall power increases as the syngas ratio, H2/CO, increases because more water is needed to produce more hydrogen at a set CO2 incoming flow rate. The power for the methanol cases is less than the PSA because heat is available from the methanol reactor to preheat the water and carbon dioxide entering the co-electrolysis process.

Michael G. McKellar; Rick A. Wood; Carl M. Stoots; Lila Mulloth; Bernadette Luna

2011-02-01T23:59:59.000Z

305

Spectroscopic Approaches for Phosphorus Speciation in Soils and other Environmental Systems  

SciTech Connect (OSTI)

In the past decades, environmental scientists have become increasingly involved in developing novel approaches for applying emerging spectroscopic techniques to complex environmental matrices. The objective of this review is to convey the most common chemical species of phosphorus reported for soils, sediments, model systems, and waste materials based on analyses by four spectroscopic techniques: X-ray absorption near-edge structure, nuclear magnetic resonance, Fourier transform infrared spectroscopy, and Raman spectroscopy. Unique information is provided by each technique at a level of specificity that depends in part on matrix complexity. The X-ray absorption near-edge structure and nuclear magnetic resonance techniques reveal inorganic and organic P species in intact environmental matrices or in chemical extracts, whereas the Fourier transform infrared and Raman techniques can provide more specific bonding information about mineral or adsorbed P species in model analogs of matrix components. The most common P species in soils and sediments as indicated by spectroscopy are hydroxyapatite and octacalcium phosphate minerals, phosphate adsorbed on Fe- and Al-oxides, pyrophosphates and polyphosphates, phosphate mono- and di-esters, and phosphonates. Continued advancements in spectroscopic methods should improve speciation-based models of P mobilization and transformations in the environment.

F Kizewski; A Morris; Y Liu; D Hesterberg

2011-12-31T23:59:59.000Z

306

THE MATHEMATICAL ANALYSIS OF A NOVEL APPROACH TO MAXIMIZE WASTE RECOVERY IN A LIFE SUPPORT SYSTEM  

SciTech Connect (OSTI)

NASA has been evaluating closed-loop atmosphere revitalization architectures that include carbon dioxide (CO2) reduction technologies. The CO2 and steam (H2O) co-electrolysis process is one of the reduction options that NASA has investigated. Utilizing recent advances in the fuel cell technology sector, the Idaho National Laboratory, INL, has developed a CO2 and H2O co-electrolysis process to produce oxygen and syngas (carbon monoxide (CO) and hydrogen (H2) mixture) for terrestrial (energy production) application. The technology is a combined process that involves steam electrolysis, CO2 electrolysis, and the reverse water gas shift (RWGS) reaction. Two process models were developed to evaluate novel approaches for energy storage and resource recovery in a life support system. In the first model, products from the INL co-electrolysis process are combined to produce methanol fuel. In the second co-electrolysis, products are separated with a pressure swing adsorption (PSA) process. In both models the fuels are burned with added oxygen to produce H2O and CO2, the original reactants. For both processes, the overall power increases as the syngas ratio, H2/CO, increases because more water is needed to produce more hydrogen at a set CO2 incoming flow rate. The power for the methanol cases is less than pressure swing adsorption, PSA, because heat is available from the methanol reactor to preheat the water and carbon dioxide entering the co-electrolysis process.

Michael G. McKellar; Rick A. Wood; Carl M. Stoots; Lila Mulloth; Bernadette Luna

2011-11-01T23:59:59.000Z

307

A Dynamical Systems Approach to Energy Disaggregation Roy Dong, Lillian Ratliff, Henrik Ohlsson, and S. Shankar Sastry  

E-Print Network [OSTI]

A Dynamical Systems Approach to Energy Disaggregation Roy Dong, Lillian Ratliff, Henrik Ohlsson energy consumption behavior. However, placing individual sensors on every device in a home account for 20- 40% of total energy consumption [1]. We seek to provide customers with individual device

Sastry, S. Shankar

308

A decision support system prototype including human factors based on the TOGA meta-theory approach  

SciTech Connect (OSTI)

The human contribution to the risk of operation of complex technological systems is often not negligible and sometimes tends to become significant, as shown by many reports on incidents and accidents occurred in the past inside Nuclear Power Plants (NPPs). An error of a human operator of a NPP can derive by both omission and commission. For instance, complex commission errors can also lead to significant catastrophic technological accidents, as for the case of the Three Mile Island accident. Typically, the problem is analyzed by focusing on the single event chain that has provoked the incident or accident. What is needed is a general framework able to include as many parameters as possible, i.e. both technological and human factors. Such a general model could allow to envisage an omission or commission error before it can happen or, alternatively, suggest preferred actions to do in order to take countermeasures to neutralize the effect of the error before it becomes critical. In this paper, a preliminary Decision Support System (DSS) based on the so-called (-) TOGA meta-theory approach is presented. The application of such a theory to the management of nuclear power plants has been presented in the previous ICAPP 2011. Here, a human factor simulator prototype is proposed in order to include the effect of human errors in the decision path. The DSS has been developed using a TRIGA research reactor as reference plant, and implemented using the LabVIEW programming environment and the Finite State Machine (FSM) model The proposed DSS shows how to apply the Universal Reasoning Paradigm (URP) and the Universal Management Paradigm (UMP) to a real plant context. The DSS receives inputs from instrumentation data and gives as output a suggested decision. It is obtained as the result of an internal elaborating process based on a performance function. The latter, describes the degree of satisfaction and efficiency, which are dependent on the level of responsibility related to each professional role. As an application, we present the simulation of the discussed error, e.g. the unchecked extraction of the control rods during a power variation maneuver and we show how the effect of human errors can affect the performance function, giving rise to different countermeasures which could call different operator figures into play, potentially not envisaged in the standard procedure. (authors)

Cappelli, M.; Memmi, F. [UTFISST, ENEA Casaccia, via Anguillarese 301, Rome (Italy); Gadomski, A. M. [ECONA, Centro Interuniv. Elaborazione Cognitiva Sistemi Naturali e Artificiali, via dei Marsi 47, Rome (Italy); Sepielli, M. [UTFISST, ENEA Casaccia, via Anguillarese 301, Rome (Italy)

2012-07-01T23:59:59.000Z

309

A multi-scale framework for CFD modelling of multi-phase complex systems based on the EMMS approach  

Science Journals Connector (OSTI)

The averaged conservative equations in CFD modelling are inadequate to achieve a complete description of the multi-scale structures in multiphase complex systems. By considering the relationship between meso-scale structures and meso-scale energy consumption, stability conditions mathematically expressed as a mutually constrained extremum are proposed in the Energy-Minimization Multi-Scale (EMMS) approach and indispensable to reflect the compromise of different dominant mechanisms for various multiphase systems. The approach is first applied to global systems to predict and physically interpret the macro-scale structure evolution, i.e., regime transition. Then when applied to computational cells, it corrects interphase momentum transfer and greatly improves the accuracy of coarse-grid CFD simulation.

Ning Yang

2012-01-01T23:59:59.000Z

310

Convergence Approach to Model Physical World and Cyber World of Aviation Cyber Physical System  

Science Journals Connector (OSTI)

Aviation Cyber-Physical Systems are the integration of cyber systems and physical systems. Recent concentration to Aviation Cyber Physical Systems (ACPS) is driven by the demand for deeper Convergence of design disciplines that integrate physical and ... Keywords: Aviation Cyber Physical System CPS, Modelica, AADL, SysML, Spatial-Temporal Features, Dynamic Continuous Features

Lichen Zhang

2014-08-01T23:59:59.000Z

311

A Complex Systems Approach to Sustainability: Can Peak Oil Fuel the Sub-Saharan AIDS Epidemic?.  

E-Print Network [OSTI]

??The focus of this dissertation is development of a systems methodology to examine large scale interrelated complex global systems governing natural resource use, population, economy (more)

Atzberger, Craig Philip

2007-01-01T23:59:59.000Z

312

A "Hybrid" Approach for Synthesizing Optimal Controllers of Hybrid Systems: A Case Study of the Oil Pump Industrial Example  

E-Print Network [OSTI]

In this paper, we propose an approach to reduce the optimal controller synthesis problem of hybrid systems to quantifier elimination; furthermore, we also show how to combine quantifier elimination with numerical computation in order to make it more scalable but at the same time, keep arising errors due to discretization manageable and within bounds. A major advantage of our approach is not only that it avoids errors due to numerical computation, but it also gives a better optimal controller. In order to illustrate our approach, we use the real industrial example of an oil pump provided by the German company HYDAC within the European project Quasimodo as a case study throughout this paper, and show that our method improves (up to 7.5%) the results reported in [3] based on game theory and model checking.

Zhao, Hengjun; Kapur, Deepak; Larsen, Kim G

2012-01-01T23:59:59.000Z

313

Home Design & Remodeling | Department of Energy  

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

Design & Remodeling Design & Remodeling Home Design & Remodeling Ultra-Efficient Home Design An ultra-efficient home can be designed and built to produce as much energy as it uses -- or even more! Read more Passive Solar Home Design Passive solar design takes advantage of a building's site, climate, and materials to minimize energy use. Read more Whole-House Systems Approach A whole-house systems approach considers the house as an energy system with interdependent parts, each of which affects the performance of the entire system. This approach helps homeowners, architects, and builders develop successful strategies for optimizing home energy efficiency. Read more Investing in your home's energy efficiency when designing a new home or remodeling an existing one can help you save energy and money in the long

314

A Systems Approach to Bio-Oil Stabilization - Final Technical Report  

SciTech Connect (OSTI)

The objective of this project is to develop practical, cost effective methods for stabilizing biomass-derived fast pyrolysis oil for at least six months of storage under ambient conditions. The U.S. Department of Energy has targeted three strategies for stabilizing bio-oils: (1) reducing the oxygen content of the organic compounds comprising pyrolysis oil; (2) removal of carboxylic acid groups such that the total acid number (TAN) of the pyrolysis oil is dramatically reduced; and (3) reducing the charcoal content, which contains alkali metals known to catalyze reactions that increase the viscosity of bio-oil. Alkali and alkaline earth metals (AAEM), are known to catalyze decomposition reactions of biomass carbohydrates to produce light oxygenates that destabilize the resulting bio-oil. Methods envisioned to prevent the AAEM from reaction with the biomass carbohydrates include washing the AAEM out of the biomass with water or dilute acid or infusing an acid catalyst to passivate the AAEM. Infusion of acids into the feedstock to convert all of the AAEM to salts which are stable at pyrolysis temperatures proved to be a much more economically feasible process. Our results from pyrolyzing acid infused biomass showed increases in the yield of anhydrosugars by greater than 300% while greatly reducing the yield of light oxygenates that are known to destabilize bio-oil. Particulate matter can interfere with combustion or catalytic processing of either syngas or bio-oil. It also is thought to catalyze the polymerization of bio-oil, which increases the viscosity of bio-oil over time. High temperature bag houses, ceramic candle filters, and moving bed granular filters have been variously suggested for syngas cleaning at elevated temperatures. High temperature filtration of bio-oil vapors has also been suggested by the National Renewable Energy Laboratory although there remain technical challenges to this approach. The fast pyrolysis of biomass yields three main organic products: condensable vapors, non-condensable gases, and liquid aerosols. Traditionally these are recovered by a spray quencher or a conventional shell and tube condenser. The spray quencher or condenser is typically followed by an electrostatic precipitator to yield 1 or 2 distinct fractions of bio-oil. The pyrolyzer system developed at Iowa State University incorporates a proprietary fractionating condenser train. The system collects the bio-oil into five unique fractions. For conditions typical of fluidized bed pyrolyzers, stage fractions have been collected that are carbohydrate-rich (anhydrosugars), lignin-rich, and an aqueous solution of carboxylic acids and aldehydes. One important feature is that most of the water normally found in bio-oil appears in the last stage fraction along with several water-soluble components that are thought to be responsible for bio-oil aging (low molecular weight carboxylic acids and aldehydes). Research work on laser diagnostics for hot-vapor filtration and bio-oil recovery centered on development of analytical techniques for in situ measurements during fast pyrolysis, hot-vapor filtration, and fractionation relative to bio-oil stabilization. The methods developed in this work include laser-induced breakdown spectroscopy (LIBS), laser-induced incandescence (LII), and laser scattering for elemental analysis (N, O, H, C), detection of particulates, and detection of aerosols, respectively. These techniques were utilized in simulated pyrolysis environments and applied to a small-scale pyrolysis unit. Stability of Bio-oils is adversely affected by the presence of particulates that are formed as a consequence of thermal pyrolysis, improving the CFD simulations of moving bed granular filter (MBGF) is useful for improving the design of MBGF for bio-oil production. The current work uses fully resolved direct numerical simulation (where the flow past each granule is accurately represented) to calculate the filter efficiency that is used in the CFD model at all flow speeds. This study shows that fully-resolved direct numerical simulation (DNS

Brown, Robert C; Meyer, Terrence; Fox, Rodney; Submramaniam, Shankar; Shanks, Brent; Smith, Ryan G

2011-12-23T23:59:59.000Z

315

Modeling of short-term mechanism of arterial pressure control in the cardiovascular system: Object-oriented and acausal approach  

Science Journals Connector (OSTI)

Abstract This letter introduces an alternative approach to modeling the cardiovascular system with a short-term control mechanism published in Computers in Biology and Medicine, Vol. 47 (2014), pp. 104112. We recommend using abstract components on a distinct physical level, separating the model into hydraulic components, subsystems of the cardiovascular system and individual subsystems of the control mechanism and scenario. We recommend utilizing an acausal modeling feature of Modelica language, which allows model variables to be expressed declaratively. Furthermore, the Modelica tool identifies which are the dependent and independent variables upon compilation. An example of our approach is introduced on several elementary components representing the hydraulic resistance to fluid flow and the elastic response of the vessel, among others. The introduced model implementation can be more reusable and understandable for the general scientific community.

Tom釟 Kulh醤ek; Ji? Kofr醤ek; Marek Matej醟

2014-01-01T23:59:59.000Z

316

A systems engineering approach to validation of a pulmonary physiology simulator for clinical applications  

Science Journals Connector (OSTI)

...physiological simulation|systems engineering|model...some statistical analyses [2,3]. Indeed...in the fields of systems and control engineering, where computer simulation models...simple mathematical analysis reveals that, even...

2011-01-01T23:59:59.000Z

317

A Queueing Based Scheduling Approach to Plug-In Electric Vehicle Dispatch in Distribution Systems  

E-Print Network [OSTI]

Large-scale integration of plug-in electric vehicles (PEV) in power systems can cause severe issues to the existing distribution system, such as branch congestions and significant voltage drops. As a consequence, smart charging strategies are crucial for the secure and reliable operation of the power system. This paper tries to achieve high penetration level of PEVs with the existing distribution system infrastructure by proposing a smart charging algorithm that can optimally utilize the distribution system capacity. Specifically, the paper proposes a max-weight PEV dispatch algorithm to control the PEV charging rates, subject to power system physical limits. The proposed max-weight PEV dispatch algorithm is proved to be throughput optimal under very mild assumptions on the stochastic dynamics in the system. This suggests that the costly distribution system infrastructure upgrade can be avoided, or failing that, at least successfully deferred. The proposed PEV dispatch algorithm is particularly attractive in ...

Li, Qiao; Ilic, Marija D

2012-01-01T23:59:59.000Z

318

An Approach to Analyze Tradeoffs for Aerospace System Design and Operation  

E-Print Network [OSTI]

There are important tradeoffs that need to be considered for the design and operation of aerospace systems. In addition to tradeoffs, there may also be multiple stakeholders of interest to the system and each may have ...

O'Neill, Gregory

2012-11-01T23:59:59.000Z

319

Optimization of a Process Control System using OO Approach with Matlab-Modelica Environment  

Science Journals Connector (OSTI)

The paper deals with an optimization of a process control system three tank hydraulic system. As most advanced control strategies are usually model based the appropriate environment which enables efficient m...

Borut Zupan?i?

2007-01-01T23:59:59.000Z

320

Energy-Aware Manufacturing Using Information Technology Tools: A Knowledge Based System Approach  

Science Journals Connector (OSTI)

This manuscript discusses the implementation of information technology tools; specifically, computerized Knowledge Based Systems (KBS), in managing the energy flows, conversions, and expenditures within manufacturing environments; including renewable ... Keywords: Energy Auditing, Energy Management, Energy Optimization, Knowledge Based Systems, Sustainable Manufacturing

Mohammed A. Omar, Ahmad Mayyas, Qilun Zhou

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "whole-house systems approach" 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

Towards Energy and Resource Efficient Manufacturing: A Processes and Systems Approach  

E-Print Network [OSTI]

Thermoelectric Generator Systems for Industrial Waste Heatthermoelectric generator (TEG) can be considered as another possibility in recovering industrial waste heat [

2012-01-01T23:59:59.000Z

322

A perturbative approach for the study of compatibility between nonminimally coupled gravity and Solar System experiments  

E-Print Network [OSTI]

We develop a framework for constraining a certain class of theories of nonminimally coupled (NMC) gravity with Solar System observations.

Orfeu Bertolami; Riccardo March; Jorge P醨amos

2014-03-18T23:59:59.000Z

323

Quantum Jump Approach to Switching Process of a Josephson Junction Coupled to a Microscopic Two-Level System  

E-Print Network [OSTI]

With microwave irradiation, the switching current of a Josephson junction coupled to a microscopic two-level system jumps randomly between two discrete states. We modeled the switching process of the coupled system with quantum jump approach that was generally used in quantum optics. The parameters that affect the character of the quantum jumps between macroscopic quantum states are discussed. The results obtained from our theoretical analysis agree well with those of the experiments and provide a clear physical picture for the macroscopic quantum jumps in Josephson junctions coupled with two-level systems. In addition, quantum jumps may serve as a useful tool to investigate the microscopic two-level structures in solid-state systems.

Xueda Wen; Yiwen Wang; Ning Dong; Guozhu Sun; Jian Chen; Lin Kang; Weiwei Xu; Peiheng Wu; Yang Yu

2009-07-14T23:59:59.000Z

324

Comparative analysis of two different middleware approaches for reconfiguration of distributed real-time systems  

Science Journals Connector (OSTI)

Software-based reconfiguration of distributed real-time systems is a complex problem with many sides to it ranging from system-wide concerns down to the intrinsic non-robust nature of the specific middleware layer and the used programming techniques. ... Keywords: Distributed systems, Middleware, Real-time, Reconfiguration

Marisol Garc韆 Valls; Pablo Basanta Val

2014-02-01T23:59:59.000Z

325

A formal approach to enforcing consistency in self-adaptive systems  

Science Journals Connector (OSTI)

The ability of systems to adapt is increasingly seen as a necessary underlying capability for modern software systems. The resulting self-adaptive systems are not only supposed to cope with changes, but must also preserve their consistency. To deal with ...

Najla Hadj Kacem; Ahmed Hadj Kacem; Khalil Drira

2010-08-01T23:59:59.000Z

326

A unifying approach for the generation of user interface in adaptative hypermedia systems  

Science Journals Connector (OSTI)

In the context of the ?cartable 閘ectronique ? project, we have developed an adaptive hypermedia, providing pupils with information on cultural events. We propose a general approach allowing the information to be adapted to a given ... Keywords: adaptive hypermedia, constraints, interfaces description, use context, user model

Mathieu Barcikowski; Jean-Charles Marty; Laurence Vignollet

2003-11-01T23:59:59.000Z

327

Reasoning in Metaphor Understanding: The ATT-Meta Approach and System  

E-Print Network [OSTI]

, Mark Lee, Alan Wallington School of Computer Science University of Birmingham Birmingham B15 2TT {J.A.Barnden, S.R.Glasbey, M.G.Lee, A.M.Wallington}@cs.bham.ac.uk Abstract A detailed approach has been developed

Lee, Mark

328

Panel 2: Systems Approach to Greener Design Marty Mulvihill, Berkeley Center for Green Chemistry  

E-Print Network [OSTI]

Investigate Alternative Designs, Materials, and Approaches Evaluate Alternatives, Gaps and Opportunities New the impacts of chemical products on the environment College of Engineering Developing more efficient processes of Chemistry Using more efficient and less impactful chemicals & process Maximize safety and efficiency

Lee, Seung-Wuk

329

Building America Whole-House Solutions for New Homes: Pulte Homes and Communities of Del Webb, Las Vegas, Nevada  

Broader source: Energy.gov [DOE]

Case study of Pulte Homes-Las Vegas Division who teamed with Building America team Building Science Corporation to design HERS-54 homes with high-efficiency HVAC with ducts in conditioned space, jump ducts, and a fresh air intake; advanced framed walls; low-e windows; and PV roof tiles.

330

Building America Whole-House Solutions for New Home: Fort Devens: Cold Climate Market-Rate Townhomes  

Broader source: Energy.gov [DOE]

Fort Devens: Cold Climate Market-Rate Townhomes Targeting HERS Index of 40, Harvard, Massachusetts (Fact Sheet), Building America Case Study: Efficient Solutions for New and Existing Homes, Building Technologies Office (BTO)

331

Building America Whole-House Solutions for Existing Homes: Group Home Energy Efficiency Retrofit for 30% Energy Savings (Fact Sheet)  

Broader source: Energy.gov [DOE]

This project studies the specification, implementation, and energy savings from an energy efficiency retrofit in a group home, with an energy savings goal of 30%.

332

Buildilng America Whole-House Solutions for New Homes: Hood River Passive House- Hood River, Oregon (Fact Sheet)  

Broader source: Energy.gov [DOE]

The Hood River Passive Project incorporates high R-Value assemblies, extremely tight construction, high performance doors and windows, solar thermal DHW, heat recovery ventilation, moveable external shutters and a high performance ductless minisplit heat pump.

333

Building America Whole-House Solutions for Existing Homes: 56th and Walnut: A Philly Gut Rehab Development  

Broader source: Energy.gov [DOE]

In this project, CPM partnered with the Consortium for Advanced Residential Buildings team to renovate 32 units in 11 three-story, historic, brick masonry urban buildings.

334

Building America Whole-House Solutions for Existing Homes: Islip Housing Authority Energy Efficiency Turnover Protocols, Islip, New York  

Broader source: Energy.gov [DOE]

In this project, ARIES worked with two public housing authorities (PHA) to develop packages of energy efficiency retrofit measures the PHAs can cost effectively implement at the time when units are refurbished between occupancies. T

335

Building America Whole-House Solutions for Existing Homes: Community-Scale Energy Modeling- Southeastern United States  

Broader source: Energy.gov [DOE]

Community-scale energy modeling and testing are useful for determining energy conservation measures that will effectively reduce energy use. To that end, IBACOS analyzed pre-retrofit daily utility data to sort homes by energy consumption, allowing for better targeting of homes for physical audits. Following ASHRAE Guideline 14 normalization procedures, electricity consumption of 1,166 all electric production-built homes' was modeled. The homes were in two communities; one built in the 1970s and the other in the mid-2000s.

336

Building America Whole-House Solutions for New Homes: New Town Builders' Power of Zero Energy Center  

Broader source: Energy.gov [DOE]

New Town Builders, a builder of energy efficient homes in Denver, Colorado, offers a zero energy option for all the homes it builds. To attract a wide range of potential home buyers to its energy efficient homes, New Town Builders created a "Power of Zero Energy Center" linked to its model home in the Stapleton community of Denver.

337

Building America Whole-House Solutions for New Homes: Hood River Passive House- Hood River, Oregon (Fact Sheet)  

Broader source: Energy.gov [DOE]

The Hood River Passive Project incorporates high R-Value assemblies, extremely tight construction, high performance doors and windows, solar thermal DHW, heat recovery ventilation, moveable external shutters and a high performance ductless minisplit heat pump.

338

Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet)  

Broader source: Energy.gov [DOE]

In this project, IBACOS, a U.S. Department of Energy Building America team, assessed a strategy for providing conditioned air to bedrooms when the bedroom doors are closed and measured potential thermal discomfort that occupants may experience when this strategy is used. Builders can use this information to discuss space conditioning options for low-load houses with their clients to determine acceptable comfort levels for occupants in these cost-optimized, energy-efficient houses.

339

Building America Whole-House Solutions for New Homes: Transformations, Inc. Net Zero Energy Communities (Fact Sheet)  

Broader source: Energy.gov [DOE]

In 2009, Transformations, Inc. partnered with the Building Science Corporation team to build new net zero energy houses in three developments in Massachusetts that achieve a 45% reduction in energy use compared to 2009 International Residential Code.

340

Building America Best Practices Series Volume 11. Guide to 40% Whole-House Energy Savings in the Marine Climate  

Broader source: Energy.gov [DOE]

This Building America Best Practices guide outlines ways to achieve 40% energy savings in the U.S. marine climate.

Note: This page contains sample records for the topic "whole-house systems approach" 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

Building America Whole-House Solutions for Existing Homes: Cascade Apartments- Deep Energy Multifamily Retrofit (Fact Sheet)  

Broader source: Energy.gov [DOE]

In December of 2009-10, King County Housing Authority implemented energy retrofit improvements in the Cascade multifamily community, located in Kent, Washington, which resulted in annual energy cost savings of 22%, improved comfort and air quality for residents, and increased durability of the units.

342

From conceptual process models to running systems: A holistic approach for the configuration of enterprise system processes  

Science Journals Connector (OSTI)

This paper proposes a method which aims at increasing the efficiency of enterprise system implementations. First, we argue that existing process modeling languages that feature different degrees of abstraction for different user groups exist and are ... Keywords: Business Process Modeling, Information Modeling Concepts, Model configuration, Reference modeling, System configuration

Alexander Dreiling; Michael Rosemann; Wil M. P. van der Aalst; Wasim Sadiq

2008-05-01T23:59:59.000Z

343

Strategy Guideline: Compact Air Distribution Systems  

SciTech Connect (OSTI)

This Strategy Guideline discusses the benefits and challenges of using a compact air distribution system to handle the reduced loads and reduced air volume needed to condition the space within an energy efficient home. Traditional systems sized by 'rule of thumb' (i.e., 1 ton of cooling per 400 ft2 of floor space) that 'wash' the exterior walls with conditioned air from floor registers cannot provide appropriate air mixing and moisture removal in low-load homes. A compact air distribution system locates the HVAC equipment centrally with shorter ducts run to interior walls, and ceiling supply outlets throw the air toward the exterior walls along the ceiling plane; alternatively, high sidewall supply outlets throw the air toward the exterior walls. Potential drawbacks include resistance from installing contractors or code officials who are unfamiliar with compact air distribution systems, as well as a lack of availability of low-cost high sidewall or ceiling supply outlets to meet the low air volumes with good throw characteristics. The decision criteria for a compact air distribution system must be determined early in the whole-house design process, considering both supply and return air design. However, careful installation of a compact air distribution system can result in lower material costs from smaller equipment, shorter duct runs, and fewer outlets; increased installation efficiencies, including ease of fitting the system into conditioned space; lower loads on a better balanced HVAC system, and overall improved energy efficiency of the home.

Burdick, A.

2013-06-01T23:59:59.000Z

344

Building America Case Study: Raised Ceiling Interior Duct System...  

Energy Savers [EERE]

2013 Applicable Climate Zone(s): all PERFORMANCE DATA (of the measure alone, not whole house) Cost of energy-efficiency measure (including labor): 1890 or 1.51ft 2 Projected...

345

Low-Cost Ventilation in Production Housing- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This Building America Innovations profile describes Building America research on simple whole-house ventilation systems that cost less than $350 to install and meet code requirements.

346

Development of an intelligent logistics fleet management system: an integrated approach  

Science Journals Connector (OSTI)

For Small-and Medium-Sized Enterprise (SME) logistics service providers, delivery and transportation management is usually based on simple communication systems such as the use of fax, mobile phone, etc. This causes time delays to occur more frequently for SMEs than would be the case with an asset-based organisation. Moreover, the absence of well developed logistics management systems exacerbates the situation. In fact, the continuous increase in efficiency of delivery in Hong Kong and Pearl River Delta Region has driven many logistics service companies to integrate mobile technologies with their fleet management system for tracking orders in a real time situation. This paper describes an Intelligent Logistics Fleet Management System (ILFMS) for third party logistics providers using the integration of mobile technologies, the application of Global Positioning System (GPS) and a Rule-Based Expert System (RBES) for route optimisation. By applying ILFMS in Extrans International (HK) Limited, it is found that dispatching efficiency is greatly enhanced.

K.L. Choy; Steve Frankland; Lenny S.C. Koh; Dennis W.K. Leung

2007-01-01T23:59:59.000Z

347

Measurement and verification of building systems under uncertain data: A Gaussian process modeling approach  

Science Journals Connector (OSTI)

Abstract Uncertainty in sensor data (e.g., weather, occupancy) complicates the construction of baseline models for measurement and verification (M&V). We present a Monte Carlo expectation maximization (MCEM) framework for constructing baseline Gaussian process (GP) models under uncertain input data. We demonstrate that the GP-MCEM framework yields more robust predictions and confidence levels compared with standard GP training approaches that neglect uncertainty. We argue that the approach can also reduce data needs because it implicitly expands the data range used for training and can thus be used as a mechanism to reduce data collection and sensor installation costs in M&V processes. We analyze the numerical behavior of the framework and conclude that robust predictions can be obtained with relatively few samples.

Michael C. Burkhart; Yeonsook Heo; Victor M. Zavala

2014-01-01T23:59:59.000Z

348

Applications of interest : a relational database approach to managing control system software applications.  

SciTech Connect (OSTI)

Large accelerator facilities such as the Advanced Photon Source (APS) typically are operated by a diverse set of integrated control systems, such as front-end controllers, PLCs, and FPGAs. This type of control system structure encompasses numerous engineering documents, distributed real-time control system databases, source code, user displays, and other components. The complexity of the control system is further increased as the life cycle of a control system is never ending, change is constant. And the accelerator itself generates new operational problems on a regular basis. This overall controls environment begs the question of how best to provide a means for control system engineers to easily and quickly troubleshoot unique functions of the control system, find relevant information, and understand the impact of changes to one part of the control system on other applications. The answer to this question lies in being able to associate pertinent drawings, manuals, source code, hardware, and expert developers in an efficient and logical manner. Applications of Interest is a relational database software tool created for the purpose of providing alternative views of the supporting information behind each distinct control system application at the APS.

Quock, D. B.; Arnold, N.; Dohan, D.; Anderson, J.; Clemons, D. (APS Engineering Support Division)

2008-04-14T23:59:59.000Z

349

An Approximate Dynamic Programming Approach to Financial Execution for Weapon System Programs .  

E-Print Network [OSTI]

??During each twelve month fiscal year (FY) cycle weapon system programs across the Department of Defense (DoD) are expected to execute their allocated budgets in (more)

Morman, Erich

2013-01-01T23:59:59.000Z

350

Combining frequency and time domain approaches to systems with multiple spike train input and output  

E-Print Network [OSTI]

between neuronal spike trains. Prog Biophys Mol Biol Vapnikto systems with multiple spike train input and output D. R.Keywords Multiple spike trains Neural coding Maximum

Brillinger, D. R.; Lindsay, K. A.; Rosenberg, J. R.

2009-01-01T23:59:59.000Z

351

Cyber-security analysis in smart grid SCADA systems: A game theoretic approach.  

E-Print Network [OSTI]

??Power grid systems deliver electricity from suppliers that generate the power to be transmitted through grids of interconnected networks and distributed to customers. Smart grids (more)

Rudrapattana, Sudeeptha Ranganath 1989-

2013-01-01T23:59:59.000Z

352

A Simplified Self-Help Approach to Sizing of Small-Scale Cogeneration Systems  

E-Print Network [OSTI]

applications for buildings are best served by small-scale systems such as a combustion turbine or engine coupled with a generator and a waste heat boiler. Natural gas and light fuel oils are the fuels best suited to these systems. Gas-fired Cogeneration systems... Cogeneration systems, which use a wide range of conventional fuels (natural gas, diesel fuel, gasoline or propane) and well-developed engines and generator sets. The packaged units are skid-mounted with appropriate controls and electrical switchgear included...

Somasundaram, S.; Turner, W. D.

1987-01-01T23:59:59.000Z

353

Towards Energy and Resource Efficient Manufacturing: A Processes and Systems Approach  

E-Print Network [OSTI]

Power, and Recovering Waste Heat with ThermoelectricSystems for Industrial Waste Heat Recovery, Industrialenergetic emissions (waste heat, waste air, mechanical

2012-01-01T23:59:59.000Z

354

Rural area application of HOMER software for feasibility analysis of hybrid energy system with an improved approach  

Science Journals Connector (OSTI)

For a power supply in a remote rural area where a grid supply is infeasible, a hybrid energy system consisting of a renewable energy mix, with a backup generation, could be a viable alternative. Feasibility analysis and determination of optimal combination of such a system is a complex task owing to the uncertain nature of renewable energies, load demand uncertainty, non-linear characteristic of components and interdependency of process components. HOMER software performs this complicated task in an easy and accurate way by economically analysing various possible alternatives and sorting them out for optimality. However the limitation of results for optimality determination based on single criteria has been improved in the present paper using analytic hierarchy process (AHP). A rural study area has been identified for validation of proposed methodology. The approach provides the most optimal hybrid energy system for the selected study area accommodating many aspects of analysis allowing suitable weightage to each of them.

Abha Rajoriya; Eugene Fernandez

2011-01-01T23:59:59.000Z

355

A design approach to a risk review for fuel cell-based distributed cogeneration systems  

E-Print Network [OSTI]

A risk review of a fuel cell-based distributed co-generation (FC-Based DCG) system was conducted to identify and quantify the major technological system risks in a worst-case scenario. A risk review entails both a risk assessment and a risk...

Luthringer, Kristin Lyn

2004-09-30T23:59:59.000Z

356

Constraint based approach for the steady-state simulation of complex systems: Application to ship control  

Science Journals Connector (OSTI)

When the steady states are largely predominant with respect to transitional phases, steady-state simulation seems sufficient to predict the behavior of a complex system. Over the past 20 years, different modeling languages and dedicated tools have been ... Keywords: Constraint programming, Model-based system engineering, Modelica, Multi-physics modeling, Steady-state simulation

Vincent Larroud; Raphael Chenouard; Pierre-Alain Yvars; Dominique Millet

2013-01-01T23:59:59.000Z

357

A Novel Approach to Build a Generic Model of Photovoltaic Solar System Using Sound Biometric Techniques  

Science Journals Connector (OSTI)

This chapter presents the proposed model of combination between Photovoltaic solar system resources and sound biometric techniques, to generate power energy from the sunlight using the PVS controlled by a sound biometric technique. This work contributes ... Keywords: Electricity Consumption, Energy Conversion, Energy Storage Device, Photovoltaic Solar System (PVS), Sound Recognition Techniques

Khalid T. Al-Sarayreh, Kenza Meridji, Ebaa Fayyoumi, Sahar Idwan

2014-01-01T23:59:59.000Z

358

Sensitivity Analysis of Wind Plant Performance to Key Turbine Design Parameters: A Systems Engineering Approach; Preprint  

SciTech Connect (OSTI)

This paper introduces the development of a new software framework for research, design, and development of wind energy systems which is meant to 1) represent a full wind plant including all physical and nonphysical assets and associated costs up to the point of grid interconnection, 2) allow use of interchangeable models of varying fidelity for different aspects of the system, and 3) support system level multidisciplinary analyses and optimizations. This paper describes the design of the overall software capability and applies it to a global sensitivity analysis of wind turbine and plant performance and cost. The analysis was performed using three different model configurations involving different levels of fidelity, which illustrate how increasing fidelity can preserve important system interactions that build up to overall system performance and cost. Analyses were performed for a reference wind plant based on the National Renewable Energy Laboratory's 5-MW reference turbine at a mid-Atlantic offshore location within the United States.

Dykes, K.; Ning, A.; King, R.; Graf, P.; Scott, G.; Veers, P.

2014-02-01T23:59:59.000Z

359

The fuzzy inference system approach to a multi-performance characteristic index for surface quality improvement in CNC end milling  

Science Journals Connector (OSTI)

Utility embedded fuzzy approach has been adopted for multiple surface quality optimisation of 6061 T4 Aluminium in CNC end milling operation. The purpose is to evaluate the most favourable process environment consisting of selected process parameters viz. spindle speed, feed and depth of cut in order to satisfy multiple requirements of surface integrity. Various surface roughness parameters have been taken into account with a focus to minimise all of them simultaneously. Utility concept has been adopted to convert individual surface roughness parameters into corresponding utility value which have been fed to a fuzzy inference system to obtain a multi-performance characteristic index (MPCI). MPCI has been optimised finally using Taguchi method. Detailed methodology of the proposed approach has been presented with an illustrative example followed by satisfactory result of confirmatory test.

Saurav Datta; Siba Sankar Mahapatra; Bharat Chandra Routara; Asish Bandyopadhyay

2011-01-01T23:59:59.000Z

360

A fast global optimization approach to VAR planning for the large scale electric power systems  

SciTech Connect (OSTI)

In this paper, an innovative fast global optimization technique, Hybrid Partial Gradient Descent/Simulated Annealing (HPGDSA), for optimal VAR planning is presented. The HPGDSA is introduced to search the global optimal solution considering both quality and speed at the same time. The basic idea of the HPGDSA is that partial gradient descent and simulated annealing alternate with each other such that it reduces the CPU time of the conventional Simulated Annealing (SA) method while retaining the main characteristics of SA, i.e., the ability to get the global optimal solution. The HPGDSA was applied to a practical power system, Taiwan Power System (Tai-Power System), with satisfactory results.

Liu, C.W.; Jwo, W.S.; Liu, C.C. [National Taiwan Univ., Taipei (Taiwan, Province of China). Dept. of Electrical Engineering; Hsiao, Y.T. [Tamkang Univ., Taipei (Taiwan, Province of China). Dept. of Electrical Engineering

1997-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "whole-house systems approach" 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

Brain tumour segmentation in MRI: knowledge-based system and region growing approach  

Science Journals Connector (OSTI)

We present in this paper a method for MRI brain tumour segmentation, so we propose a general framework that is a combination of paradigms, in order to have a hybrid segmentation method, automatic and unsupervised. In the first phase, expertise and characteristics derived from MRI images are combined to define heuristics for the development of the classification approach. In the second phase, refinement of the tumour contour is achieved by using the region growing method. The results are good and visually validated by radiologists.

Badredine Sayah; Bornia Tighiouart

2014-01-01T23:59:59.000Z

362

Efficiency and Evolution of Water Transport Systems in Higher Plants: A Modelling Approach. II. Stelar Evolution  

Science Journals Connector (OSTI)

...July 1994 research-article Efficiency and Evolution of Water Transport Systems in Higher...protostele and siphonostele in water conduction was analysed numerically...identical with regard to water transport efficiency. The Royal Society is collaborating...

1994-01-01T23:59:59.000Z

363

Restructuring The Automobile/highway System For Lean Vehicles: The Scaled Precedence Activity Network (SPAN) Approach  

E-Print Network [OSTI]

shared with conventional automobiles and trucks (on a 2 to 119791. Man and the Automobile. New York: McGraw-Hill. Jones,AT BERKELEY Restructuring the Automobile/Highway System for

Pitstick, Mark E.; Garrison, William L.

1991-01-01T23:59:59.000Z

364

Advanced Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus Application  

Broader source: Energy.gov [DOE]

Design refinements of the GTB-40 mass-transit bus include new optimization processes, subsystem, and powertrain system requirements along with traction motor, battery, and APU development and integration

365

Dealing With Load and Generation Cost Uncertainties in Power System Operation Studies: A Fuzzy Approach  

Science Journals Connector (OSTI)

Power systems are currently facing a change of the paradigm that determined their operation and planning while being surrounded by multiple uncertainties sources. As a consequence, dealing with uncertainty is ...

Bruno Andr Gomes; Jo鉶 Tom Saraiva

2010-01-01T23:59:59.000Z

366

An engineering approach to modelling, decision support and control for sustainable systems  

Science Journals Connector (OSTI)

...analysed. In general, LCA analyses are comparative...current systems. In agriculture, they frequently...making and control in agriculture and new mathematical...Issue Sustainable agriculture I. Table 1 A typical outcome of an LCA analysis of a single...

2008-01-01T23:59:59.000Z

367

A Contraction Theory Approach to Singularly Perturbed Systems with Application to Retroactivity Attenuation  

E-Print Network [OSTI]

In this paper, we revisit standard results for singularly perturbed systems on the infinite time interval by employing tools from nonlinear contraction theory. This allows us to determine explicit bounds both on the rate ...

Del Vecchio, Domitilla

368

A combined graph theory and analytic hierarchy process approach for multicriteria evaluation of hydrogen energy systems  

Science Journals Connector (OSTI)

Hydrogen is a renewable energy source and has the potential to mitigate the green house gas effect and to meet the increasing global electricity demand. In the present study, a multicriteria methodology is developed by combining graph theory and analytic hierarchy process methods for the evaluation and selection of hydrogen energy systems. The hydrogen energy system alternatives are assessed with respect to economic, environmental, performance and social criteria by computing the hydrogen energy system preference index. A detailed procedure for determination of hydrogen energy system preference index is suggested. Two examples relating to hydrogen production processes and hydrogen energy technologies are cited in order to demonstrate and validate the effectiveness and flexibility of the proposed methodology. In each example, a list of all possible choices from the best to the worst alternatives is obtained taking into account different evaluation criteria.

Pramod B. Lanjewar; R.V. Rao; A.V. Kale

2014-01-01T23:59:59.000Z

369

A Framework for Evaluation of Multi-Agent System Approaches to Logistics Network Management  

Science Journals Connector (OSTI)

We study the applicability of multi-agent systems (MAS) to production and logistics network management. The goal is to create and evaluate sets of intelligent agents that can cooperatively support production a...

Paul Davidsson; Fredrik Wernstedt

2004-01-01T23:59:59.000Z

370

Order and diversity within a modular system for housing : a computational approach  

E-Print Network [OSTI]

This thesis introduces elements of a methodology to achieve order and diversity in the systematic design of street facades within a modular system for housing. In its context both order and diversity refer to the spatial ...

Duarte, Jos Pinto

1993-01-01T23:59:59.000Z

371

Debonding in bi-layer material systems under moisture effect : a multiscale approach  

E-Print Network [OSTI]

Bi-layer material systems are found in various engineering applications ranging from nano-scale components, such as thin films in circuit boards, to macro-scale structures such as adhesive bonding in aerospace and civil ...

Lau, Tak-bun, Denvid

2012-01-01T23:59:59.000Z

372

Disruption of the group health insurance in light of the Affordable Care Act - system approach  

E-Print Network [OSTI]

Our current Healthcare system has multiple problems and it is widely perceived that it is not able to provide quality affordable healthcare to all Americans; millions of Americans are without Health Insurance. The Affordable ...

Shefali, Shweta

2014-01-01T23:59:59.000Z

373

Optical design guidelines for spectral splitting photovoltaic systems : a sensitivity analysis approach  

E-Print Network [OSTI]

Solar power has unmatched ability to provide greater security and reduced environmental impact for the energy sector. Photovoltaic (PV) systems provide the most popular method used today for harnessing this power. However, ...

Berney Needleman, David

2014-01-01T23:59:59.000Z

374

A Logical Approach to Real Options Identification with Application to UAV Systems  

E-Print Network [OSTI]

Complex systems are subject to uncertainties that may lead to suboptimal performance or even catastrophic failure if unmanaged. Uncertainties may be managed through real options that provide a decision maker with the right, ...

Mikaelian, Tsoline

375

Comprehensive performance metrics for Complex Fenestration Systems using a relative approach  

E-Print Network [OSTI]

Buildings account for over 40% of the energy consumption in the United States, nearly 40% of which is attributed to lighting. The selection of a fenestration system for a building is a critical decision as it offsets ...

Dave, Shreya H

2012-01-01T23:59:59.000Z

376

Understanding patterns of growth at Kendall Square using a system dynamics approach  

E-Print Network [OSTI]

The interdependency of transportation investment and land use has yet to be fully understood to quantify the benefits of transit infrastructure. Researchers agree on the complex relationship of urban systems, particularly ...

Vi馻-Arias, Laura Beatriz

2013-01-01T23:59:59.000Z

377

A 3-level autonomous mobile robot navigation system designed by using reasoning/search approaches  

Science Journals Connector (OSTI)

This paper describes how soft computing methodologies such as fuzzy logic, genetic algorithms and the Dempster-Shafer theory of evidence can be applied in a mobile robot navigation system. The navigation system that is considered has three navigation ... Keywords: Backstepping algorithm, Dynamic model of mobile robot, Fuzzy logic, Genetic algorithm, Hybrid position controller, Local minima problem, Map building, Path planning, Pruning of relevant obstacles

Jasmin Velagic; Bakir Lacevic; Branislava Perunicic

2006-12-01T23:59:59.000Z

378

A Partitioning Approach for Parallel Simulation of AC-Radial Shipboard Power Systems  

E-Print Network [OSTI]

be used. That is, a transmission line of sufficient physical length must exist in order to partition power systems. If said line does not exist in the power system being modeled, short-lines (stublines [27]) with one time step delay can be used... the electrical network equations using modified nodal analysis, use Bergeron?s travelling-wave transmission line model to create subsystems, and to parallelize the simulation using a distributed computer. In this work, an SPS was formulated using loop...

Uriarte, Fabian Marcel

2011-08-08T23:59:59.000Z

379

Graphical Programming: A systems approach for telerobotic servicing of space assets  

SciTech Connect (OSTI)

Satellite servicing is in many ways analogous to subsea robotic servicing in the late 1970`s. A cost effective, reliable, telerobotic capability had to be demonstrated before the oil companies invested money in deep water robot serviceable production facilities. In the same sense, aeronautic engineers will not design satellites for telerobotic servicing until such a quantifiable capability has been demonstrated. New space servicing systems will be markedly different than existing space robot systems. Past space manipulator systems, including the Space Shuttle`s robot arm, have used master/slave technologies with poor fidelity, slow operating speeds and most importantly, in-orbit human operators. In contrast, new systems will be capable of precision operations, conducted at higher rates of speed, and be commanded via ground-control communication links. Challenges presented by this environment include achieving a mandated level of robustness and dependability, radiation hardening, minimum weight and power consumption, and a system which accommodates the inherent communication delay between the ground station and the satellite. There is also a need for a user interface which is easy to use, ensures collision free motions, and is capable of adjusting to an unknown workcell (for repair operations the condition of the satellite may not be known in advance). This paper describes the novel technologies required to deliver such a capability.

Pinkerton, J.T. [New Mexico Univ., Albuquerque, NM (United States). Dept. of Computer Science; McDonald, M.J.; Palmquist, R.D. [Sandia National Labs., Albuquerque, NM (United States); Patten, R. [Oceaneering Space Systems, Webster, TX (United States)

1993-08-01T23:59:59.000Z

380

A systemic approach for dimensioning and designing anaerobic bio-digestion/energy generation biomass supply networks  

Science Journals Connector (OSTI)

Abstract Anaerobic bio-digestion/energy generation complexes using animal waste raw materials represent an important component of renewable energy initiatives and policies worldwide, and are significant contributors to broaden sustainability efforts. In such projects bio-power feasibility depends heavily on generation complex access to biomass which is of costly transportation. As a result, an important component of renewable energy planning is the optimization of a logistics system to guarantee low-cost access to animal waste. This access is a function of local characteristics including number and geographic location of organic waste sources, operating and maintenance costs of the generation facility, energy prices, and marginal contribution of biomass collected and delivered to the anaerobic bio-digestion unit. Because biomass exhibits high transportation costs per unit of energy ultimately generated, and because different types of biomass have different biogas-generating properties, design of the supply logistics system can be the determinant factor towards economic viability of energy generation from an anaerobic bio-digestion plant. Indeed, to address this problem it is helpful to consider the farms, the logistics system, the anaerobic bio-digestion plant, and the generation plant as subsystems in an integrated system. Additionally, the existence of an outlet for manure may allow farmers to significantly raise boundaries of one constraint they face, namely disposing of animal waste, therefore permitting increases in farm production capacity. This paper suggests and outlines a systematic methodology to address the design of such systems.

Jo鉶 Neiva de Figueiredo; S閞gio Fernando Mayerle

2014-01-01T23:59:59.000Z

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


381

A simple grand canonical approach to compute the vapor pressure of bulk and finite size systems  

SciTech Connect (OSTI)

In this article we introduce a simple grand canonical screening (GCS) approach to accurately compute vapor pressures from molecular dynamics or Monte Carlo simulations. This procedure entails a screening of chemical potentials using a conventional grand canonical scheme, and therefore it is straightforward to implement for any kind of interface. The scheme is validated against data obtained from Gibbs ensemble simulations for water and argon. Then, it is applied to obtain the vapor pressure of the coarse-grained mW water model, and it is shown that the computed value is in excellent accord with the one formally deduced using statistical thermodynamics arguments. Finally, this methodology is used to calculate the vapor pressure of a water nanodroplet of 94 molecules. Interestingly, the result is in perfect agreement with the one predicted by the Kelvin equation for a homogeneous droplet of that size.

Factorovich, Mat韆s H.; Scherlis, Dami醤 A. [Departamento de Qu韒ica Inorg醤ica, Anal韙ica y Qu韒ica F韘ica/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA (Argentina)] [Departamento de Qu韒ica Inorg醤ica, Anal韙ica y Qu韒ica F韘ica/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA (Argentina); Molinero, Valeria [Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850 (United States)] [Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850 (United States)

2014-02-14T23:59:59.000Z

382

An approach to identify commonalities in web application engineering for a web content management system  

Science Journals Connector (OSTI)

The process of Web applications engineering can be complex and time consuming. We argue that Web engineering based on a standardized platform with reusable components is a logical next step in the evolution of Web application development. One popular ... Keywords: software product lines, web content management system, web engineering

Jurriaan Souer; Dirk-Jan Joor

2010-11-01T23:59:59.000Z

383

International Journal of Cooperative Information Systems SOA ANTIPATTERNS: AN APPROACH FOR THEIR SPECIFICATION AND  

E-Print Network [OSTI]

of precision and recall on two systems developed independently, (1) Home-Automation, an SBS with 13 services the Section 4.5.2 and Section 4.5.4 to discuss the false positive detections for our two experiments. For Home-Automation

Paris-Sud XI, Universit茅 de

384

Quantitative Risk reduction estimation Tool For Control Systems, Suggested Approach and Research Needs  

SciTech Connect (OSTI)

For the past year we have applied a variety of risk assessment technologies to evaluate the risk to critical infrastructure from cyber attacks on control systems. More recently, we identified the need for a stand alone control system risk reduction estimation tool to provide owners and operators of control systems with a more useable, reliable, and credible method for managing the risks from cyber attack. Risk is defined as the probability of a successful attack times the value of the resulting loss, typically measured in lives and dollars. Qualitative and ad hoc techniques for measuring risk do not provide sufficient support for cost benefit analyses associated with cyber security mitigation actions. To address the need for better quantitative risk reduction models we surveyed previous quantitative risk assessment research; evaluated currently available tools; developed new quantitative techniques [17] [18]; implemented a prototype analysis tool to demonstrate how such a tool might be used; used the prototype to test a variety of underlying risk calculational engines (e.g. attack tree, attack graph); and identified technical and research needs. We concluded that significant gaps still exist and difficult research problems remain for quantitatively assessing the risk to control system components and networks, but that a useable quantitative risk reduction estimation tool is not beyond reach.

Miles McQueen; Wayne Boyer; Mark Flynn; Sam Alessi

2006-03-01T23:59:59.000Z

385

Application of Neural Network approach for Proton Exchange Membrane fuel cell systems  

Science Journals Connector (OSTI)

Artificial Intelligence (AI) techniques, particularly the Neural Networks (NNs), are recently having significant impact on power electronics. In a Proton Exchange Membrane (PEM) fuel cell system, there is a strong relationship between the available ... Keywords: NNC, PEM fuel cells, dynamic modelling, neural network controllers, neural networks, output variables, performance modelling, power electronics, proton exchange membrane

Mustapha Hatti; Mustapha Tioursi

2009-01-01T23:59:59.000Z

386

Evaluation of mesoscale convective systems in South America using multiple satellite products and an objectbased approach  

E-Print Network [OSTI]

Evaluation of mesoscale convective systems in South America using multiple satellite products颅2003 in the La Plata river basin, southeastern South America, were analyzed with the Contiguous Rain Area (CRA; Salby and Callaghan, 1997]. However, in South America, few studies have assessed the validity

Ebert, Beth

387

Organizational culture and information systems adoption: A three-perspective approach  

Science Journals Connector (OSTI)

Organizational culture continues to be cited as an important factor in the success or failure of information systems (IS) adoption. This is evidenced by the growing trend in the number of studies that address cultural issues in IS literature over the ... Keywords: Cultural theory, Culture, IS adoption, Interpretative case study

Stephen Jackson

2011-04-01T23:59:59.000Z

388

An LMI approach to reliable guaranteed cost control of discrete-time systems with actuator failure  

Science Journals Connector (OSTI)

This paper is concerned with the reliable guaranteed cost control problem for discrete-time systems with actuator failures and a given quadratic cost function. The problem is to design a reliable guaranteed cost state feedback control law which can tolerate ... Keywords: Actuator failure, Guaranteed cost control, LMI, Reliable control

Li Yu

2005-03-01T23:59:59.000Z

389

Re-Engineering a Medical Devices Management Software System: The Web Approach  

Science Journals Connector (OSTI)

The primary aim of a hospital Clinical Engineering Department (CED) is to ensure a safe and cost-effective operation of the medical devices. In order to achieve this goal, it needs to implement and establish a comprehensive biomedical technology management ... Keywords: Clinical Engineering, Maintenance, Medical Devices Inventory, Medical Equipment Management System, Quality Assurance

P.G. Malataras, Z.B. Bliznakov, N.E. Pallikarakis

2014-01-01T23:59:59.000Z

390

Performance-Oriented Drilling Fluids Design System with a Neural Network Approach  

Science Journals Connector (OSTI)

Drilling fluids play a key role in the minimization of well bore problems when drilling oil or gas wells, usually the design of drilling fluids is depended on many experiments with experience. Rule-based and case-based reasoning drilling fluid system ... Keywords: artificial neural network, drilling fluid, performance-oriented

Yongbin Zhang; Yeli Li; Peng Cao

2009-11-01T23:59:59.000Z

391

A geometric approach to the optimal control of nonholnomic mechanical systems  

E-Print Network [OSTI]

In this paper, we describe a constrained Lagrangian and Hamiltonian formalism for the optimal control of nonholonomic mechanical systems. In particular, we aim to minimize a cost functional, given initial and final conditions where the controlled dynamics is given by nonholonomic mechanical system. In our paper, the controlled equations are derived using a basis of vector fields adapted to the nonholonomic distribution and the Riemannian metric determined by the kinetic energy. Given a cost function, the optimal control problem is understood as a constrained problem or equivalently, under some mild regularity conditions, as a Hamiltonian problem on the cotangent bundle of the nonholonomic distribution. A suitable Lagrangian submanifold is also shown to lead to the correct dynamics. We demonstrate our techniques in several examples including a continuously variable transmission problem and motion planning for obstacle avoidance problems.

Anthony Bloch; Leonardo Colombo; Rohit Gupta; David Martin de Diego

2014-12-23T23:59:59.000Z

392

Studying complex tourism systems: a novel approach based on networks derived from a time series  

E-Print Network [OSTI]

A tourism destination is a complex dynamic system. As such it requires specific methods and tools to be analyzed and understood in order to better tailor governance and policy measures for steering the destination along an evolutionary growth path. Many proposals have been put forward for the investigation of complex systems and some have been successfully applied to tourism destinations. This paper uses a recent suggestion, that of transforming a time series into a network and analyzes it with the objective of uncovering the structural and dynamic features of a tourism destination. The algorithm, called visibility graph, is simple and its implementation straightforward, yet it is able to provide a number of interesting insights. An example is worked out using data from two destinations: Italy as a country and the island of Elba, one of its most known areas.

Baggio, Rodolfo

2013-01-01T23:59:59.000Z

393

Using a complex system approach to address world challenges in Food and Agriculture  

E-Print Network [OSTI]

World food supply is crucial to the well-being of every human on the planet in the basic sense that we need food to live. It also has a profound impact on the world economy, international trade and global political stability. Furthermore, consumption of certain types and amounts foods can affect health, and the choice of livestock and plants for food production can impact sustainable use of global resources. There are communities where insufficient food causes nutritional deficiencies, and at the same time other communities eating too much food leading to obesity and accompanying diseases. These aspects reflect the utmost importance of agricultural production and conversion of commodities to food products. Moreover, all factors contributing to the food supply are interdependent, and they are an integrative part of the continuously changing, adaptive and interdependent systems in the world around us. The properties of such interdependent systems usually cannot be inferred from the properties of its parts. In a...

van Mil, H G J; Windhab, E J; Perrot, N; van der Linden, E

2013-01-01T23:59:59.000Z

394

Dirac-Brueckner Hartree-Fock Approach: from Infinite Matter to Effective Lagrangians for Finite Systems  

E-Print Network [OSTI]

One of the open problems in nuclear structure is how to predict properties of finite nuclei from the knowledge of a bare nucleon-nucleon interaction of the meson-exchange type. We point out that a promising starting point consists in Dirac-Brueckner-Hartree-Fock (DBHF) calculations us- ing realistic nucleon-nucleon interactions like the Bonn potentials, which are able to reproduce satisfactorily the properties of symmetric nuclear matter without the need for 3-body forces, as is necessary in non-relativistic BHF calculations. However, the DBHF formalism is still too com- plicated to be used directly for finite nuclei. We argue that a possible route is to define effective Lagrangians with density-dependent nucleon-meson coupling vertices, which can be used in the Relativistic Hartree (or Relativistic Mean Field (RMF)) or preferrably in the Relativistic Hartree- Fock (RHF) approach. The density-dependence is matched to the nuclear matter DBHF results. We review the present status of nuclear matter DBHF calculat...

Van Giai, Nguyen; Ma, Zhongyu; Wolter, Hermann

2010-01-01T23:59:59.000Z

395

Safety Issues and Approach to Meet the Safety Requirements in Tokamak Cooling Water System of ITER  

SciTech Connect (OSTI)

The ITER (Latin for 'the way') tokamak cooling water system (TCWS) consists of several separate systems to cool the major ITER components - the divertor/limiter, the first wall blanket, the neutral beam injector and the vacuum vessel. The ex-vessel part of the TCWS systems provides a confinement function for tritium and activated corrosion products in the cooling water. The Vacuum Vessel System also has a functional safety requirement regarding the residual heat removal from in-vessel components. A preliminary hazards assessment (PHA) was performed for a better understanding of the hazards, initiating events, and defense in depth mechanisms associated with the TCWS. The PHA was completed using the following steps. (1) Hazard Identification. Hazards associated with the TCWS were identified including radiological/chemical/electromagnetic hazards and physical hazards (e.g., high voltage, high pressure, high temperature, falling objects). (2) Hazard Categorization. Hazards identified in step (1) were categorized as to their potential for harm to the workers, the public, and/or the environment. (3) Hazard Evaluation. The design was examined to determine initiating events that might occur and that could expose the public, environment, or workers to the hazard. In addition the system was examined to identify barriers that prevent exposure. Finally, consequences to the public or workers were qualitatively assessed, should the initiating event occur and one or more of the barriers fail. Frequency of occurrence of the initiating event and subsequent barrier failure was qualitatively estimated. (4) Accident Analysis. A preliminary hazards analysis was performed on the conceptual design of the TCWS. As the design progresses, a detailed accident analysis will be performed in the form of a failure modes and effects analysis. The results of the PHA indicated that the principal hazards associated with the TCWS were those associated with radiation. These were low compared to hazards associated with nuclear fission reactors and were limited to potential exposure to the on-site workers if appropriate protective actions were not used. However, the risk to the general public off-site was found to be negligible even under worst case accident conditions.

Flanagan, George F [ORNL] [ORNL; Reyes, Susana [ITER Organization, Saint Paul Lez Durance, France] [ITER Organization, Saint Paul Lez Durance, France; Chang, Keun Pack [ITER Organization, Saint Paul Lez Durance, France] [ITER Organization, Saint Paul Lez Durance, France; Berry, Jan [ORNL] [ORNL; Kim, Seokho H [ORNL] [ORNL

2010-01-01T23:59:59.000Z

396

A Two-Stage Kalman Filter Approach for Robust and Real-Time Power System State Estimation  

SciTech Connect (OSTI)

As electricity demand continues to grow and renewable energy increases its penetration in the power grid, realtime state estimation becomes essential for system monitoring and control. Recent development in phasor technology makes it possible with high-speed time-synchronized data provided by Phasor Measurement Units (PMU). In this paper we present a two-stage Kalman filter approach to estimate the static state of voltage magnitudes and phase angles, as well as the dynamic state of generator rotor angles and speeds. Kalman filters achieve optimal performance only when the system noise characteristics have known statistical properties (zero-mean, Gaussian, and spectrally white). However in practice the process and measurement noise models are usually difficult to obtain. Thus we have developed the Adaptive Kalman Filter with Inflatable Noise Variances (AKF with InNoVa), an algorithm that can efficiently identify and reduce the impact of incorrect system modeling and/or erroneous measurements. In stage one, we estimate the static state from raw PMU measurements using the AKF with InNoVa; then in stage two, the estimated static state is fed into an extended Kalman filter to estimate the dynamic state. Simulations demonstrate its robustness to sudden changes of system dynamics and erroneous measurements.

Zhang, Jinghe; Welch, Greg; Bishop, Gary; Huang, Zhenyu

2014-04-01T23:59:59.000Z

397

Lattice stability of aluminum-rare earth binary systems: A first-principles approach  

Science Journals Connector (OSTI)

The thermodynamics of over 330 compounds in 15 Al-RE (RE=rare earth elements) binary systems is studied via first-principles density-functional theory at low-temperature limit. The calculated phase stabilities at T=0K are in very good agreement with experimentally reported ones for the majority of the systems. For example, we show the Al2RE.cF24 structure is the most stable compound phase in each binary and it indeed has the highest (congruent) melting point in each system. In some other cases, we obtain results previously unknown experimentally. For example, we suggest that the structure of the observed compound AlTm2 is isostructural with Co2Si.oP12 (prototype Co2Si, Pearson symbol oP12), we confirm the stability of AlEu.oP20 rather than AlEu.oP18 by examining the energetics of vacancy substitution, and we predict the unreported Al-Pm phase diagram. Relative accuracy of different potentials and calculational details are addressed. This study predicts that the Al-RE phase diagrams evolve systematically across the entire RE series, interrupted by anomalies at elements Ce and especially Eu and Yb. Trends in lattice stability across the RE series are explained on the basis of interatomic bonding and strain. This study demonstrates that first-principles calculations can be employed to (1) further examine and improve the experimentally established binary-alloy phase diagrams, and (2) provide accurate enthalpy data for stable and hypothetical compounds and structures.

Michael C. Gao; Anthony D. Rollett; Michael Widom

2007-05-31T23:59:59.000Z

398

A new mathematical approach to multi-area power system reliability evaluation  

E-Print Network [OSTI]

the first stage of the decomposition process. 19 Subset of acceptable states MlM2 . . . M? A, V, 2 vl ? 1 M2 ~ . M? Ll ml m2 ~ ~ ~ ~ ~ ~ 7B? ul ? 1 M2 ~ M? Ul Vl V2 Ml v2 ? 1 ~ M? L2 vl pn2 Mlul ? 1 M? Ul Bl V2 Ml M2 . . . M? Subset... of unclassified states being decomposed MlM2 . v?? 1 Vl V2 ~ ~ ~ ~ Bl? Ml Ml . -. . u?? 1 U. ul G2 ''' ' V? Disjoint subsets of system loss-of-load states Disjoint subsets of unclassified states Fig. 2. Decomposition of an unclassified set U 20 2...

Pathak, Rajesh

2012-06-07T23:59:59.000Z

399

Optimal management of hybrid PV/fuel cell/battery power system: A comparison of optimal hybrid approaches  

Science Journals Connector (OSTI)

Abstract In this paper, different optimal hybrid techniques have been proposed for management of a hybrid power generation system including photovoltaic (PV), fuel cell and battery. The main power of the hybrid system comes from the photovoltaic panels, while the fuel cell and batteries are used as back up units. In order to achieve maximum power point tracking for the photovoltaic system, both fuzzy logic controller and perturb and observation methods are examined and their performances have been investigated via simulations. Next, the performance of the hybrid system has been improved via employing a family of well-known optimization approaches for load sharing among the available resources. Imperialist Competitive Algorithm (ICA), Particle Swarm Optimization (PSO), Quantum behaved Particle Swarm Optimization (QPSO), Ant Colony Optimization (ACO), and Cuckoo Optimization Algorithm (COA) are used to manage the load sharing to achieve optimal performance while the system constraints are met. The optimal performance has been characterized via the control strategy performance measure being the ratio of the amount of hydrogen production with respect to the hydrogen consumption. In order to verify the system performance, simulation studies have been carried out using practical load demand data and real weather data (solar irradiance and air temperature). Different combination of maximum power point tracking methods with various optimization algorithms have been compared with each other. The results show that the combination of fuzzy logic controller with QPSO has the best performance among the considered combinations. In this situation, when the solar irradiation is noticeably high, the required load is supplied mainly by PV array, while the battery is charged, simultaneously. In the other times, the load is mainly fed by the battery and fuel cell while the performance constraints of battery is met and the daily performance measure is optimized.

Nooshin Bigdeli

2015-01-01T23:59:59.000Z

400

Cost Effective, High Efficiency Integrated Systems Approach To Auxiliary Electric Motors  

SciTech Connect (OSTI)

The CARAT program, carried out by Kinetic Art & Technology Corporation (KAT), has been one of the most commercially successful KAT R&D programs to date. Based on previous development of its technology, KAT designed, constructed and tested a highly efficient motor and controller system under this CARAT program with supplemental commercial funding. Throughout this CARAT effort, the technical objectives have been refined and refocused. Some objectives have been greatly expanded, while others have been minimized. The determining factor in all decisions to refocus the objectives was the commercial need, primarily the needs of KAT manufacturing partners. Several companies are employing the resulting CARAT motor and controller designs in prototypes for commercial products. Two of these companies have committed to providing cost share in order to facilitate the development. One of these companies is a major manufacturing company developing a revolutionary new family of products requiring the ultra-high system efficiency achievable by the KAT motor and controller technologies (known as Segmented ElectroMagnetic Array, or SEMA technology). Another company requires the high efficiency, quiet operation, and control characteristics afforded by the same basic motor and controller for an advanced air filtration product. The combined annual production requirement projected by these two companies exceeds one million units by 2005.

Roy Kessinger; Kanchan Angal; Steve Brewer; Steve Kraihanzel; Lenny Schrank; Jason Wolf

2003-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "whole-house systems approach" 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

Cost Effective, High Efficiency Integrated Systems Approach to Auxilliary Electric Motors  

SciTech Connect (OSTI)

The CARAT program, carried out by Kinetic Art & Technology Corporation (KAT), has been one of the most commercially successful KAT R&D programs to date. Based on previous development of its technology, KAT designed, constructed and tested a highly efficient motor and controller system under this CARAT program with supplemental commercial funding. Throughout this CARAT effort, the technical objectives have been refined and refocused. Some objectives have been greatly expanded, while others have been minimized. The determining factor in all decisions to refocus the objectives was the commercial need, primarily the needs of KAT manufacturing partners. Several companies are employing the resulting CARAT motor and controller designs in prototypes for commercial products. Two of these companies have committed to providing cost share in order to facilitate the development. One of these companies is a major manufacturing company developing a revolutionary new family of products requiring the ultra-high system efficiency achievable by the KAT motor and controller technologies (known as Segmented ElectroMagnetic Array, or SEMA technology). Another company requires the high efficiency, quiet operation, and control characteristics afforded by the same basic motor and controller for an advanced air filtration product. The combined annual production requirement projected by these two companies exceeds one million units by 2005.

Roy Kessinger Jr.; Keith Seymour; Kanchan Angal; Jason Wolf; Steve Brewer; Leonard Schrank

2003-09-26T23:59:59.000Z

402

A robust approach for planning electric power systems associated with environmental policy analysis  

Science Journals Connector (OSTI)

In this study, a fractile-based robust stochastic programming (FRSP) method is developed for planning electric power systems under uncertainty. FRSP can tackle uncertainties expressed as possibilistic and probabilistic distributions in constraints and objective function. The developed FRSP is applied to long-term electric power systems planning, where two cases are examined based on different greenhouse gas (GHG) and air-pollutant management policies. During power-generation processes, various losses may affect energy consumption rate, leading to uncertainties in energy conversion efficiency. From a long-term planning point of view, energy demands from multiple end-users may vary due to population increase and economic development. A variety of scenarios associated with different levels of energy conversion efficiency and energy demand are analyzed. Decision variables with p-necessity are useful for managers to sustain and/or modify the decision schemes for energy activities through incorporation of their implicit knowledge. The results obtained can not only be used for generating desired energy resource/service distribution, but also help decision makers identify desired policies for GHG and air-pollutant mitigation with a cost-effective manner.

Y. Zhou; Y.P. Li; G.H. Huang; Y. Zhou

2013-01-01T23:59:59.000Z

403

Solar system and equivalence principle constraints on f(R) gravity by chameleon approach  

E-Print Network [OSTI]

We study constraints on f(R) dark energy models from solar system experiments combined with experiments on the violation of equivalence principle. When the mass of an equivalent scalar field degree of freedom is heavy in a region with high density, a spherically symmetric body has a thin-shell so that an effective coupling of the fifth force is suppressed through a chameleon mechanism. We place experimental bounds on the cosmologically viable models recently proposed in literature which have an asymptotic form f(R)=R-lambda R_c [1-(R_c/R)^{2n}] in the regime R >> R_c. From the solar-system constraints on the post-Newtonian parameter gamma, we derive the bound n>0.5, whereas the constraints from the violations of weak and strong equivalence principles give the bound n>0.9. This allows a possibility to find the deviation from the LambdaCDM cosmological model. For the model f(R)=R-lambda R_c(R/R_c)^p with 0

Salvatore Capozziello; Shinji Tsujikawa

2008-03-30T23:59:59.000Z

404

Dynamical System Approach to Cosmological Models with a Varying Speed of Light  

E-Print Network [OSTI]

Methods of dynamical systems have been used to study homogeneous and isotropic cosmological models with a varying speed of light (VSL). We propose two methods of reduction of dynamics to the form of planar Hamiltonian dynamical systems for models with a time dependent equation of state. The solutions are analyzed on two-dimensional phase space in the variables $(x, \\dot{x})$ where $x$ is a function of a scale factor $a$. Then we show how the horizon problem may be solved on some evolutional paths. It is shown that the models with negative curvature overcome the horizon and flatness problems. The presented method of reduction can be adopted to the analysis of dynamics of the universe with the general form of the equation of state $p=\\gamma(a)\\epsilon$. This is demonstrated using as an example the dynamics of VSL models filled with a non-interacting fluid. We demonstrate a new type of evolution near the initial singularity caused by a varying speed of light. The singularity-free oscillating universes are also admitted for positive cosmological constant. We consider a quantum VSL FRW closed model with radiation and show that the highest tunnelling rate occurs for a constant velocity of light if $c(a) \\propto a^n$ and $-1 < n \\le 0$. It is also proved that the considered class of models is structurally unstable for the case of $n < 0$.

Marek Szydlowski; Adam Krawiec

2002-12-16T23:59:59.000Z

405

A Systems Genetic Approach to Identify Low Dose Radiation-Induced Lymphoma Susceptibility/DOE2013FinalReport  

SciTech Connect (OSTI)

The ultimate goal of this project is to identify the combinations of genetic variants that confer an individual's susceptibility to the effects of low dose (0.1 Gy) gamma-radiation, in particular with regard to tumor development. In contrast to the known effects of high dose radiation in cancer induction, the responses to low dose radiation (defined as 0.1 Gy or less) are much less well understood, and have been proposed to involve a protective anti-tumor effect in some in vivo scientific models. These conflicting results confound attempts to develop predictive models of the risk of exposure to low dose radiation, particularly when combined with the strong effects of inherited genetic variants on both radiation effects and cancer susceptibility. We have used a ??Systems Genetics approach in mice that combines genetic background analysis with responses to low and high dose radiation, in order to develop insights that will allow us to reconcile these disparate observations. Using this comprehensive approach we have analyzed normal tissue gene expression (in this case the skin and thymus), together with the changes that take place in this gene expression architecture a) in response to low or high- dose radiation and b) during tumor development. Additionally, we have demonstrated that using our expression analysis approach in our genetically heterogeneous/defined radiation-induced tumor mouse models can uniquely identify genes and pathways relevant to human T-ALL, and uncover interactions between common genetic variants of genes which may lead to tumor susceptibility.

Balmain, Allan [University of California, San Francisco; Song, Ihn Young [University of California, San Francisco

2013-05-15T23:59:59.000Z

406

A One System Integrated Approach to Simulant Selection for Hanford High Level Waste Mixing and Sampling Tests  

SciTech Connect (OSTI)

The Hanford Tank Operations Contractor (TOC) and the Hanford Waste Treatment and Immobilization Plant (WTP) contractor are both engaged in demonstrating mixing, sampling, and transfer system capabilities using simulated Hanford High-Level Waste (HLW) formulations. This represents one of the largest remaining technical issues with the high-level waste treatment mission at Hanford. Previous testing has focused on very specific TOC or WTP test objectives and consequently the simulants were narrowly focused on those test needs. A key attribute in the Defense Nuclear Facilities Safety Board (DNFSB) Recommendation 2010-2 is to ensure testing is performed with a simulant that represents the broad spectrum of Hanford waste. The One System Integrated Project Team is a new joint TOC and WTP organization intended to ensure technical integration of specific TOC and WTP systems and testing. A new approach to simulant definition has been mutually developed that will meet both TOC and WTP test objectives for the delivery and receipt of HLW. The process used to identify critical simulant characteristics, incorporate lessons learned from previous testing, and identify specific simulant targets that ensure TOC and WTP testing addresses the broad spectrum of Hanford waste characteristics that are important to mixing, sampling, and transfer performance are described.

Thien, Mike G. [Washington River Protection Solutions, LLC, Richland, WA (United States); Barnes, Steve M. [URS, Richland, WA (United States)

2013-01-17T23:59:59.000Z

407

Discrete Exterior Geometry Approach to Structure-Preserving Discretization of Distributed-Parameter Port-Hamiltonian Systems  

E-Print Network [OSTI]

This paper addresses the issue of structure-preserving discretization of open distributed-parameter systems with Hamiltonian dynamics. Employing the formalism of discrete exterior calculus, we introduce a simplicial Dirac structure as a discrete analogue of the Stokes-Dirac structure and demonstrate that it provides a natural framework for deriving finite-dimensional port-Hamiltonian systems that emulate their infinite-dimensional counterparts. The spatial domain, in the continuous theory represented by a finite-dimensional smooth manifold with boundary, is replaced by a homological manifold-like simplicial complex and its augmented circumcentric dual. The smooth differential forms, in discrete setting, are mirrored by cochains on the primal and dual complexes, while the discrete exterior derivative is defined to be the coboundary operator. This approach of discrete differential geometry, rather than discretizing the partial differential equations, allows to first discretize the underlying Stokes-Dirac structure and then to impose the corresponding finite-dimensional port-Hamiltonian dynamics. In this manner, a number of important intrinsically topological and geometrical properties of the system are preserved.

Marko Seslija; Arjan van der Schaft; Jacquelien M. A. Scherpen

2012-02-27T23:59:59.000Z

408

A One System Integrated Approach to Simulant Selection for Hanford High Level Waste Mixing and Sampling Tests - 13342  

SciTech Connect (OSTI)

The Hanford Tank Operations Contractor (TOC) and the Hanford Waste Treatment and Immobilization Plant (WTP) contractor are both engaged in demonstrating mixing, sampling, and transfer system capabilities using simulated Hanford High-Level Waste (HLW) formulations. This represents one of the largest remaining technical issues with the high-level waste treatment mission at Hanford. Previous testing has focused on very specific TOC or WTP test objectives and consequently the simulants were narrowly focused on those test needs. A key attribute in the Defense Nuclear Facilities Safety Board (DNFSB) Recommendation 2010-2 is to ensure testing is performed with a simulant that represents the broad spectrum of Hanford waste. The One System Integrated Project Team is a new joint TOC and WTP organization intended to ensure technical integration of specific TOC and WTP systems and testing. A new approach to simulant definition has been mutually developed that will meet both TOC and WTP test objectives for the delivery and receipt of HLW. The process used to identify critical simulant characteristics, incorporate lessons learned from previous testing, and identify specific simulant targets that ensure TOC and WTP testing addresses the broad spectrum of Hanford waste characteristics that are important to mixing, sampling, and transfer performance are described. (authors)

Thien, Mike G. [Washington River Protection Solutions, LLC, P.O Box 850, Richland WA, 99352 (United States)] [Washington River Protection Solutions, LLC, P.O Box 850, Richland WA, 99352 (United States); Barnes, Steve M. [Waste Treatment Plant, 2435 Stevens Center Place, Richland WA 99354 (United States)] [Waste Treatment Plant, 2435 Stevens Center Place, Richland WA 99354 (United States)

2013-07-01T23:59:59.000Z

409

BCS-BEC crossover and phase structure of relativistic systems: A variational approach  

SciTech Connect (OSTI)

We investigate here the BCS-BEC crossover in relativistic systems using a variational construct for the ground state and the minimization of the thermodynamic potential. This is first studied in a four-fermion point interaction model and with a BCS type ansatz for the ground state with fermion pairs. It is shown that the antiparticle degrees of freedom play an important role in the BCS-BEC crossover physics, even when the ratio of Fermi momentum to the mass of the fermion is small. We also consider the phase structure for the case of fermion pairing with imbalanced populations. Within the ansatz, thermodynamically stable gapless modes for both fermions and antifermions are seen for strong coupling in the Bose-Einstein condensation (BEC) regime. We further investigate the effect of fluctuations of the condensate field by treating it as a dynamical field and generalize the BCS ansatz to include quanta of the condensate field also in a boson-fermion model with quartic self-interaction of the condensate field. It is seen that the critical temperature decreases with inclusion of fluctuations.

Chatterjee, Bhaswar; Mishra, Hiranmaya; Mishra, Amruta [Theory Division, Physical Research Laboratory, Navrangpura, Ahmedabad 380 009 (India); Theory Division, Physical Research Laboratory, Navrangpura, Ahmedabad 380 009, India and School of Physical Sciences, Jawaharlal Nehru University, New Delhi-110067 (India); Department of Physics, Indian Institute of Technology, New Delhi-110016 (India) and Frankfurt Institute for Advanced Studies, Universitaet Frankfurt, D-60438 Frankfurt (Germany)

2009-01-01T23:59:59.000Z

410

Probabilistic Approach to Quantifying the Contribution of Variable Generation and Transmission to System Reliability: Preprint  

SciTech Connect (OSTI)

The increasing electrical load served by variable generation (VG), such as wind and solar energy, in the United States and many other countries has stimulated an interesting line of research to better quantify the capacity value of these resources. Methods applied traditionally to thermal units based on their average outage rates do not apply to VG because of their uncertain and non-dispatchable nature. The North American Electric Reliability Corporation's Integration of Variable Generation Task Force recently released a report that highlighted the need to develop and benchmark underlying loss-of-load expectation and related metrics that reasonably and fairly calculate the contribution to planning reserves, or capacity value, of solar and wind power. As the fraction of generation coming from VG becomes more significant, their estimated capacity value will have a larger impact on system planning. In this paper, we provide a method to include VG in traditional probabilistic-based adequacy methods. This method has been implemented in the Renewable Energy Probabilistic Resource Assessment tool developed at the National Renewable Energy Laboratory. Through an example based on the U.S. Western Interconnection, this method is applied to assess the effect that transmission can have on resource adequacy. We also analyze the interactions between available transmission and capacity value for VG.

Ibanez, E.; Milligan, M.

2012-09-01T23:59:59.000Z

411

A Distributed Object Component-based Approach to Large-scale Engineering Systems and an Example Component Using Motion Planning Techniques for  

E-Print Network [OSTI]

but robust enough to be truly useful for engineering- specific services. This paper introduces a distributedA Distributed Object Component-based Approach to Large-scale Engineering Systems and an Example. Kunz2 , Kincho H. Law3 Abstract This paper introduces a large-scale engineering systems distributed

Stanford University

412

Examination of the role of nuclear deterrence in the 21st century: a systems analysis approach  

SciTech Connect (OSTI)

Until very recently, an evaluation of US policy regarding deterrence and the role of its nuclear weapons arsenal as a deterrent has been largely absent in the public debate. With President's Obama embrace of a goal of a future world without nuclear weapons, issues of nuclear policy and deterrence have just recently risen to the forefront of policy discussions. The traditional role of US nuclear weapons-to deter the use of nuclear weapons by other states-endures, but is no longer unique nor even predominant. In an increasingly multi-polar world, the US now faces growing risks of nuclear weapons proliferation; the spread of weapons of mass destruction generally to non-state, substate and transnational actors; cyber, space, economic, environmental and resource threats along with the application of numerous other forms of 'soft power' in ways that are inimical to national security and to global stability. What concept of deterrence should the US seek to maintain in the 21st Century? That question remains fluid and central to the current debate. Recently there has been a renewed focusing of attention on the role of US nuclear weapons and a national discussion about what the underlying policy should be. In this environment, both the United States and Russia have committed to drastic reductions in their nuclear arsenals, while still maintaining forces sufficient to ensure unacceptable consequence in response to acts of aggression. Further, the declared nuclear powers have maintained that a limited nuclear arsenal continues to provide insurance against uncertain developments in a changing world. In this environment of US and Russian stockpile reductions, all declared nuclear states have reiterated the central role which nuclear weapons continue to provide for their supreme national security interests. Given this new environment and the challenges of the next several decades, how might the United States structure its policy and forces with regard to nuclear weapons? Many competing objectives have been stated across the spectrum of political, social, and military thought. These objectives include goals of ratification of the Comprehensive Test Ban Treaty, recommitment to further downsizing of the nuclear arsenal, embracing a long-term goal of the elimination of nuclear weapons, limitations on both the production complex and upgrades to nuclear weapons and delivery systems, and controls and constraints to limit proliferation of nuclear materials and weapons, particularly to rogue states and terrorist groups.

Martz, Joseph C [Los Alamos National Laboratory; Stevens, Patrice A [Los Alamos National Laboratory; Branstetter, Linda [SNL; Hoover, Edward [SNL; O' Brien, Kevin [SNL; Slavin, Adam [SNL; Caswell, David [STANFORD UNIV

2010-01-01T23:59:59.000Z

413

Commissioning Residential Ventilation Systems: A Combined Assessment of  

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

Commissioning Residential Ventilation Systems: A Combined Assessment of Commissioning Residential Ventilation Systems: A Combined Assessment of Energy and Air Quality Potential Values Title Commissioning Residential Ventilation Systems: A Combined Assessment of Energy and Air Quality Potential Values Publication Type Report LBNL Report Number LBNL-5969E Year of Publication 2012 Authors Turner, William J. N., Jennifer M. Logue, and Craig P. Wray Date Published 07/2012 Keywords commissioning, energy, health, indoor air quality, residential, valuation, ventilation Abstract Due to changes in building codes, whole-house mechanical ventilation systems are being installed in new California homes. Few measurements are available, but the limited data suggest that these systems don't always perform as code and forecasts predict. Such deficiencies occur because systems are usually field assembled without design specifications, and there is no consistent process to identify and correct problems. The value of such activities in terms of reducing energy use and improving indoor air quality (IAQ) is poorly understood. Commissioning such systems when they are installed or during subsequent building retrofits is a step towards eliminating deficiencies and optimizing the tradeoff between energy use and IAQ.

414

Systems Biology Approaches to Dissecting Plant Cell Wall Biosynthesis Genes in Poplus (JGI Seventh Annual User Meeting 2012: Genomics of Energy and Environment)  

ScienceCinema (OSTI)

N. Louise Glass from the University of California, Berkeley, presents a talk titled "Systems Biology Approaches to Dissecting Plant Cell Wall Biosynthesis Genes in Poplus" at the JGI 7th Annual Users Meeting: Genomics of Energy & Environment Meeting on March 22, 2012 in Walnut Creek, California.

Glass, N Louise [UC Berkeley

2013-01-25T23:59:59.000Z

415

Fingerprinting of bed sediment in theTay Estuary, Scotland: an environmental magnetism approach Hydrology and Earth System Sciences, 6(6), 10071016 (2002) EGS  

E-Print Network [OSTI]

Fingerprinting of bed sediment in theTay Estuary, Scotland: an environmental magnetism approach 1007 Hydrology and Earth System Sciences, 6(6), 1007颅1016 (2002) 漏 EGS Fingerprinting of bed sediment 9AL, Scotland Email of corresponding author: p.a.jenkins@dundee.ac.uk Abstract Sediment

Paris-Sud XI, Universit茅 de

416

Evaluating Domestic Hot Water Distribution System Options With Validated Analysis Models  

SciTech Connect (OSTI)

A developing body of work is forming that collects data on domestic hot water consumption, water use behaviors, and energy efficiency of various distribution systems. A full distribution system developed in TRNSYS has been validated using field monitoring data and then exercised in a number of climates to understand climate impact on performance. This study builds upon previous analysis modelling work to evaluate differing distribution systems and the sensitivities of water heating energy and water use efficiency to variations of climate, load, distribution type, insulation and compact plumbing practices. Overall 124 different TRNSYS models were simulated. Of the configurations evaluated, distribution losses account for 13-29% of the total water heating energy use and water use efficiency ranges from 11-22%. The base case, an uninsulated trunk and branch system sees the most improvement in energy consumption by insulating and locating the water heater central to all fixtures. Demand recirculation systems are not projected to provide significant energy savings and in some cases increase energy consumption. Water use is most efficient with demand recirculation systems, followed by the insulated trunk and branch system with a central water heater. Compact plumbing practices and insulation have the most impact on energy consumption (2-6% for insulation and 3-4% per 10 gallons of enclosed volume reduced). The results of this work are useful in informing future development of water heating best practices guides as well as more accurate (and simulation time efficient) distribution models for annual whole house simulation programs.

Weitzel, E.; Hoeschele, M.

2014-09-01T23:59:59.000Z

417

numerical models & information Systems, Nice: France (2013)" Environmental impact for offshore wind farms: Geolocalized Life Cycle Assessment (LCA) approach  

E-Print Network [OSTI]

Abstract. This paper presents an approach for Environmental Impact Assessment through the use of geolocalized LCA approach, for fixed and floating offshore wind farms. This work was undertaken within the EUsponsored EnerGEO project, aiming at providing a versatile modeling platform for stakeholders allowing calculation, forecasting and monitoring of environmental impacts of different sources of energy. This paper described the geolocalized LCA approach, and its use for the evaluation of environmental impacts of wind energy. The effects of offshore wind farms on global environnemental impacts are evaluated though the LCA approach. It takes into account the type of wind farm, the construction phase, all technical aspects, the operation and maintenance scheme and the decommissioning. It also includes geolocalized information such as wind resources, bathymetry, accessibility Environmental impact parameters are accessible through a web service helping the decision makers in assessing the environnemental impacts. 1

Catherine Guermont; Lionel M閚ard; Isabelle Blanc

2013-01-01T23:59:59.000Z

418

Integrated Approach to Use Natural Chemical and Isotopic Tracers to Estimate Fracture Spacing and Surface Area in EGS Systems  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. This objective of this project is to develop an innovative approach to estimate fracture surface area and spacing through interpretation of signals of natural chemical and isotopic tracers.

419

Vehicle Technologies Office Merit Review 2014: A MultiAir / MultiFuel Approach to Enhancing Engine System Efficiency  

Broader source: Energy.gov [DOE]

Presentation given by Chrysler at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about a multiair/multifuel approach to...

420

A coarse-graining approach for molecular simulation that retains the dynamics of the all-atom reference system by implementing hydrodynamic interactions  

SciTech Connect (OSTI)

We report on a new approach for deriving coarse-grained intermolecular forces that retains the frictional contribution that is often discarded by conventional coarse-graining methods. The approach is tested for water and an aqueous glucose solution, and the results from the new implementation for coarse-grained molecular dynamics simulation show remarkable agreement with the dynamics obtained from reference all-atom simulations. The agreement between the structural properties observed in the coarse-grained and all-atom simulations is also preserved. We discuss how this approach may be applied broadly to any existing coarse-graining method where the coarse-grained models are rigorously derived from all-atom reference systems.

Markutsya, Sergiy [Ames Laboratory; Lamm, Monica H [Ames Laboratory

2014-11-07T23:59:59.000Z

Note: This page contains sample records for the topic "whole-house systems approach" 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

Benchmarking Non-Hardware Balance-of-System (Soft) Costs for U.S. Photovoltaic Systems Using a Bottom-Up Approach and Installer Survey  

E-Print Network [OSTI]

Photovoltaic System Prices in the United States: Current Drivers and Costsoft costs for residential and commercial photovoltaic (of-System (Soft) Costs for U.S. Photovoltaic Systems Using a

Ardani, Kristen

2014-01-01T23:59:59.000Z

422

A New Approach for Sustainable Energy Systems due to the Excitation of Inner?core Electrons on Zinc Atoms Induced by Surface?ion?recombination  

Science Journals Connector (OSTI)

The crisis of Nuclear power plants due to the March 11 2011 Tsunami in Japan suggests an increased need for sustainable science and technology in our society. The authors propose a new physical approach with surface?ion?recombination (SIR) due to the inner?core excitation of zinc atom [ Ne ]3s 2 3p 6 3d 10 4s 2 that brings no magnetic moment. Condensed material indicated the energy dependence of X?ray diffraction intensity in which exists strong diffuse scattering intensities at 10 eV 90 eV 100 eV and 230 eV. These energies are strictly corresponding to zinc of electron systems (3s 3p 3d and these combination). Our approach may have the potential of techniques for future nanotechnology especially for hydrogen storage systems.

Mitsugi Hamasaki; Masumi Obara; Mitsuomi Yamaguchi; Masahiro Kuwayama; Kozo Obara

2011-01-01T23:59:59.000Z

423

OTHER APPROACHES TO MANAGING  

E-Print Network [OSTI]

requirements Include minimum separations between wells and conventional/alternative onsite sewage treatment systems Supplement public sanitary sewerage systems primarily in rural areas Legal Approaches ConstructionOTHER APPROACHES TO MANAGING POLLUTANT SOURCES Laws and Land Use [Chapter 10.2] Rules of Thumb Rule

424

Functional approach for pairing in finite systems: How to define restoration of broken symmetries in Energy Density Functional theory ?  

E-Print Network [OSTI]

The Multi-Reference Energy Density Functional (MR-EDF) approach (also called configuration mixing or Generator Coordinate Method), that is commonly used to treat pairing in finite nuclei and project onto particle number, is re-analyzed. It is shown that, under certain conditions, the MR-EDF energy can be interpreted as a functional of the one-body density matrix of the projected state with good particle number. Based on this observation, we propose a new approach, called Symmetry-Conserving EDF (SC-EDF), where the breaking and restoration of symmetry are accounted for simultaneously. We show, that such an approach is free from pathologies recently observed in MR-EDF and can be used with a large flexibility on the density dependence of the functional.

Guillaume Hupin; Denis Lacroix; Michael Bender

2011-05-30T23:59:59.000Z

425

Decision Support Systems to Identify Efficient Beef Production Systems Collecting individual phenotype data in cattle is expensive; therefore, scientific approaches that integrate and apply accumulated  

E-Print Network [OSTI]

Decision Support Systems to Identify Efficient Beef Production Systems Collecting individual impact of beef production. Objective The objective is to develop a decision-support system and Cornell Value Discovery System) and found that genetic correlations between observed and predicted intakes

426

Efficiency and Evolution of Water Transport Systems in Higher Plants: A Modelling Approach. I. The Earliest Land Plants  

Science Journals Connector (OSTI)

...1994 research-article Efficiency and Evolution of Water Transport Systems in Higher...transport vascular taxa water water pressure GeoRef, Copyright...1098/rstb.1994.0093 Efficiency and evolution of water transport systems in higher...

1994-01-01T23:59:59.000Z

427

An Adaptive GA桺SO Approach with Gene Clustering to Infer S-system Models of Gene Regulatory Networks  

Science Journals Connector (OSTI)

......In addition, we plan to develop advanced...analysis of gene regulatory networks. Nat...simulation of genetic regulatory systems: a literature review. J. Comput. Biol...Inference of Gene Regulatory Networks Using S-system......

Wei-Po Lee; Yu-Ting Hsiao

2011-09-01T23:59:59.000Z

428

A pseudo-optimal control approach for a redundant degree-of-freedom in a gimbaled mechanical system  

E-Print Network [OSTI]

Unaided inertial navigation systems of sufficient quality allow a missile or other body to navigate freely for potentially long periods of time. The use of four gimbals in such systems allows for elimination of large ...

Smith, Jason T. (Jason Thomas), 1978-

2004-01-01T23:59:59.000Z

429

Model Predictive Control Approach to Online Computation of Demand-Side Flexibility of Commercial Buildings HVAC Systems for Supply Following  

E-Print Network [OSTI]

the summation of fan power, cooling power and heating power,non-electric heating and cooling powers of these systems. (time t Power consumption of fan, heating and cooling systems

Maasoumy, Mehdi

2014-01-01T23:59:59.000Z

430

Vehicle Technologies Office 2013 Merit Review: A MultiAir / MultiFuel Approach to Enhancing Engine System Efficiency  

Broader source: Energy.gov [DOE]

A presentation given by Chrysler at the 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting on its project to research a multi-air and multi-fuel approach to improving engine efficiency.

431

Feature selection in wind speed prediction systems based on a hybrid coral reefs optimization Extreme learning machine approach  

Science Journals Connector (OSTI)

Abstract This paper presents a novel approach for short-term wind speed prediction based on a Coral Reefs Optimization algorithm (CRO) and an Extreme Learning Machine (ELM), using meteorological predictive variables from a physical model (the Weather Research and Forecast model, WRF). The approach is based on a Feature Selection Problem (FSP) carried out with the CRO, that must obtain a reduced number of predictive variables out of the total available from the WRF. This set of features will be the input of an ELM, that finally provides the wind speed prediction. The CRO is a novel bio-inspired approach, based on the simulation of reef formation and coral reproduction, able to obtain excellent results in optimization problems. On the other hand, the ELM is a new paradigm in neural networks training, that provides a robust and extremely fast training of the network. Together, these algorithms are able to successfully solve this problem of feature selection in short-term wind speed prediction. Experiments in a real wind farm in the USA show the excellent performance of the CRO朎LM approach in this FSP wind speed prediction problem.

S. Salcedo-Sanz; A. Pastor-S醤chez; L. Prieto; A. Blanco-Aguilera; R. Garc韆-Herrera

2014-01-01T23:59:59.000Z

432

Essential Systems Functionality Inspection Criteria, Approach, and Lines of Inquiry, October 16, 2008 (HSS CRAD 64-11 Rev. 2)  

Broader source: Energy.gov [DOE]

The Essential Systems Functionality (ESF) inspection will evaluate the effectiveness of programs and processes for engineering design and safety basis, construction and installation, configuration management, surveillance testing, maintenance, operations, cognizant system engineer (CSE) and safety system oversight (SSO), and feedback and improvement of selected safety systems. This review will evaluate the effectiveness in maintaining the functionality of these safety systems. The ESF review will be performed in the context of integrated safety management (ISM), although the inspection criteria, activities and lines of inquiry are organized by ESF functional areas rather than ISM principles and core functions.

433

Ventilation System Effectiveness and Tested Indoor Air Quality Impacts  

SciTech Connect (OSTI)

Ventilation system effectiveness testing was conducted at two unoccupied, single-family, detached lab homes at the University of Texas - Tyler. Five ventilation system tests were conducted with various whole-building ventilation systems. Multizone fan pressurization testing characterized building and zone enclosure leakage. PFT testing showed multizone air change rates and interzonal airflow. Cumulative particle counts for six particle sizes, and formaldehyde and other Top 20 VOC concentrations were measured in multiple zones. The testing showed that single-point exhaust ventilation was inferior as a whole-house ventilation strategy. It was inferior because the source of outside air was not direct from outside, the ventilation air was not distributed, and no provision existed for air filtration. Indoor air recirculation by a central air distribution system can help improve the exhaust ventilation system by way of air mixing and filtration. In contrast, the supply and balanced ventilation systems showed that there is a significant benefit to drawing outside air from a known outside location, and filtering and distributing that air. Compared to the Exhaust systems, the CFIS and ERV systems showed better ventilation air distribution and lower concentrations of particulates, formaldehyde and other VOCs. System improvement percentages were estimated based on four System Factor Categories: Balance, Distribution, Outside Air Source, and Recirculation Filtration. Recommended System Factors could be applied to reduce ventilation fan airflow rates relative to ASHRAE Standard 62.2 to save energy and reduce moisture control risk in humid climates. HVAC energy savings were predicted to be 8-10%, or $50-$75/year.

Rudd, A.; Bergey, D.

2014-02-01T23:59:59.000Z

434

A combination of existing concepts and approaches to take on energy system transitions The Republic of Panama as a case-study  

Science Journals Connector (OSTI)

Abstract The impact of our energy systems on the climate mandates an energy system transition. In this paper a combination of existing concepts and approaches to take on such transitions is discussed. This combination starts with first defining the unit of analysis, after which actors in the socio-technical energy system are charted through literature research and interviews. Next, using social network analysis, regimes and niches are identified to depict the unit of analysis in a more useful manner for managing transitions. The step hereafter consists of creating internal and external scenarios based on critical uncertainties to insure transition management efforts against uncertainty in and outside the unit of analysis. Moving to transition management, robustness analysis is then used to evaluate strategies and policies in all combinations of these internal and external scenarios to get to an optimum set of strategies and policies which are used to form a normative scenario. This will be used to get stakeholders behind the transition effort. This combination of approaches and concepts is used in the case of the Republic of Panama. It results in a clear overview of the energy system, impediments and opportunities regarding transition, possible futures, and the validity of strategies and policies in different scenarios.

Dani雔 A. Lachman

2014-01-01T23:59:59.000Z

435

A new symbiotic evolution-based fuzzy-neural approach to fault diagnosis of marine propulsion systems  

Science Journals Connector (OSTI)

This paper presents a symbiotic evolution-based fuzzy-neural diagnostic system (SE-FNDS) for fault diagnosis of propeller杝haft marine propulsion systems. The SE-FNDS combination of fuzzy modeling, back-propagation training and symbiotic evolution function auto-generates its own optimal fuzzy-neural architecture, a significant advantage over previous time-consuming manual parameter determination. Four hundred samples from a test propeller杝haft system are taken over a range of 100500爎pm, during normal and experimentally induced faulty operation. This database is applied as input/output rule generation and training data for the fuzzy-neural network. Comparison of system construction time and diagnostic accuracy is made by applying the same database to SE-FNDS and four traditional systems. Compared to traditional methods, diagnostic decisions from SE-FNDS show 94.17% agreement with real conditions and less CPU time for system construction. Two nonlinear function approximations are also used to demonstrate the proposed system. The presented design is useful as a core module for more advanced computer-assisted diagnostic systems and for direct application in marine propulsion systems.

Hsing-Chia Kuo; Hui-Kuo Chang

2004-01-01T23:59:59.000Z

436

Power Distribution System Reliability Evaluation Using Both Analytical Reliability Network Equivalent Technique and Time-sequential Simulation Approach  

Science Journals Connector (OSTI)

System average interruption frequency index (SAIFI)燵7.6]: (7.4) ...$ \\label{eq:7-4} \\text{\\tex...

Peng Wang; Lalit Goel

2010-01-01T23:59:59.000Z

437

Frontiers of Plant Cell Biology: Signals and Pathways, System-Based Approaches 22nd Symposium in Plant Biology (University of California-Riverside)  

SciTech Connect (OSTI)

The symposium ''Frontiers of Plant Cell Biology: Signals and Pathways, Systems-Based Approaches'' was held January 15-18, 2003 at the Riverside Convention Center in Riverside, California. The host organization for the symposium was the Center for Plant Cell Biology (CEPCEB) at the University of California, Riverside (UCR). The meeting, focusing on systems-based approaches to plant cell biology research, was the first of this kind in the field of plant biology. The speakers and nearly 100 posters placed emphasis on recent developments in plant cellular biology and molecular genetics, particularly those employing emerging genomic tools, thereby sharing the most current knowledge in the field and stimulating future advances. In attendance were many well-established scientists and young investigators who approach plant cell biology from different but complementary conceptual and technical perspectives. Indeed, many disciplines are converging in the field of cell biology, producing synergies that will enable plant scientists to determine the function of gene products in the context of living cells in whole organisms. New, cross-disciplinary collaborations, as well as the involvement of computer scientists and chemists in plant biology research, are likely additional outcomes of the symposium. The program included 39 invited session speakers and workshop/panel speakers. Sessions were convened on the following themes: Cell-Cell Communication; Protein Trafficking; Cell Surface, Extracellular Matrix and Cell Wall; Signal Transduction; Signal Transduction and Proteosome; and Systems-Based Approaches to Plant Cell Biology. Workshops on Chemical Genetics and Visual Microscopy were also presented. Abstracts from each of the speaker presentations, as well as the posters presented at the meeting were published in a program booklet given to the 239 faculty members, researchers, postdoctoral scientists and graduate students in attendance. The booklet thus serves as a reference for symposium attendees to locate additional information about a topic of their particular interest and to contact other investigators. In addition, an article reviewing the symposium by science writer Peter V. Minorsky appeared in the June 2003 issue of Plant Physiology, a special issue devoted to systems-based approaches in the study of the model plant Arabidopsis (article submitted as part of this Final Technical Report).

Minorsky, Peter V.

2003-06-01T23:59:59.000Z

438

H Gain Scheduling for Discrete-Time Systems with Control Delays and Time-Varying Parameters: a BMI Approach  

E-Print Network [OSTI]

H Gain Scheduling for Discrete-Time Systems with Control Delays and Time-Varying Parameters: a BMI. By using a memory at the feedback loop, a discrete gain scheduled controller which minimizes an upper bound, there is no denying the fact that gain scheduling has represented an important issue within control system theory [1

439

Post-seismic supply chain risk management: A system dynamics disruption analysis approach for inventory and logistics planning  

Science Journals Connector (OSTI)

Post-seismic inventory and logistics planning under incomplete and fuzzy information is an important yet understudied area in supply chain risk management. The goal of this paper is to propose a system dynamics model to analyze the behaviors of disrupted ... Keywords: Forecasting method, Inventory and logistics planning, Post-seismic supply chain, Risk management, System dynamics

Min Peng; Yi Peng; Hong Chen

2014-02-01T23:59:59.000Z

440

OBSERVER: An Approach for Query Processing in Global Information Systems Based on Interoperation Across Pre-Existing Ontologies  

Science Journals Connector (OSTI)

There has been an explosion in the types, availability and volume of data accessible in an information system, thanks to the World Wide Web (the Web) and related inter-networking technologies. In this environment, there is a critical need to replace ... Keywords: distributed heterogeneous data access, domain ontologies, query processing in global information systems

Eduardo Mena; Arantza Illarramendi; Vipul Kashyap; Amit P. Sheth

2000-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "whole-house systems approach" 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

Scalable I/O Systems via Node-Local Storage: Approaching 1 TB/sec File I/O  

SciTech Connect (OSTI)

The growth in the computational capability of modern supercomputing systems has been accompanied by corresponding increases in CPU count, total RAM, and total storage capacity. Indeed, systems such as Blue-Gene/L [3], BlueGene/P, Ranger, and the Cray XT series have grown to more than 100k processors, with 100 TeraBytes of RAM and are attached to multi-PetaByte storage systems. However, as part of this design evolution, large supercomputers have lost node-local storage elements, such as disks. While this decision was motivated by important considerations like overall system reliability, it also resulted in these systems losing a key level in their memory hierarchy, with nothing to fill the gap between local RAM and the parallel file system. While today's large supercomputers are typically attached to fast parallel file systems, which provide tens of GBs/s of I/O bandwidth, the computational capacity has grown much faster than the storage bandwidth capacity. As such, these machines are now provided with much less than 1GB/s of I/O bandwidth per TeraFlop of compute power, which is below the generally accepted limit required for a well-balanced system [8] [16]. The result is that today's limited I/O bandwidth is choking the capabilities of modern supercomputers, specifically in terms of limiting their working sets and making fault tolerance techniques, such as checkpointing, prohibitively expensive. This paper presents an alternative system design oriented on using node-local storage to improve aggregate system I/O bandwidth. We focus on the checkpointing use-case and present an experimental evaluation of SCR, a new checkpointing library that makes use of node-local storage to significantly improve the performance of checkpointing on large-scale supercomputers. Experiments show that SCR achieves unprecedented write speeds, reaching 700GB/s on 8,752 processors. Our results scale such that we expect a similarly structured system consisting of 12,500 processors to achieve aggregate I/O bandwidth of 1 TB/s.

Moody, A; Bronevetsky, G

2008-05-20T23:59:59.000Z

442

A new approach to control of xenon spatial oscillation during load follow operation via robust servo systems  

SciTech Connect (OSTI)

The control problem of xenon-induced spatial oscillations of PWR in the axial direction during a load following operation is investigated. The system models are described by a one-group diffusion equation with xenon and temperature feed-backs, iodine and xenon dynamic equations, and heat conductions processes. Control is implemented by the full-length and the part-length control rods and the boron concentration. In order to achieve the control purpose, control models are formulated as the design problem of robust servo systems for distributed parameter reactor systems. The total thermal power and the axial offset are chosen as outputs to be controlled. The control systems consist of servo compensators and stabilizing compensators. They are designed based on the finite-dimensional systems which are constructed by linearizing around steady states, approximately by the Galerkin method, and reducing dimensions via the singular perturbation method. A new and simple computational algorithm to obtain an approximate solution of a steady-state neutron balance is developed via the perturbation method. Some results of numerical simulations are shown in order to discuss the effectiveness of the theory developed in this paper. In particular, it is shown that the designed servo systems are robust against model errors with linearization and modal truncation.

Ukai, Hiroyuki; Iwazumi, Tetsuo (Nagoya Inst. of Technology (Japan). Dept. of Electrical and Computer Engineering)

1994-12-01T23:59:59.000Z

443

Scalable I/O Systems via Node-Local Storage: Approaching 1 TB/sec File I/O  

SciTech Connect (OSTI)

In the race to PetaFLOP-speed supercomputing systems, the increase in computational capability has been accompanied by corresponding increases in CPU count, total RAM, and storage capacity. However, a proportional increase in storage bandwidth has lagged behind. In order to improve system reliability and to reduce maintenance effort for modern large-scale systems, system designers have opted to remove node-local storage from the compute nodes. Today's multi-TeraFLOP supercomputers are typically attached to parallel file systems that provide only tens of GBs/s of I/O bandwidth. As a result, such machines have access to much less than 1GB/s of I/O bandwidth per TeraFLOP of compute power, which is below the generally accepted limit required for a well-balanced system. In a many ways, the current I/O bottleneck limits the capabilities of modern supercomputers, specifically in terms of limiting their working sets and restricting fault tolerance techniques, which become critical on systems consisting of tens of thousands of components. This paper resolves the dilemma between high performance and high reliability by presenting an alternative system design which makes use of node-local storage to improve aggregate system I/O bandwidth. In this work, we focus on the checkpointing use-case and present an experimental evaluation of the Scalable Checkpoint/Restart (SCR) library, a new adaptive checkpointing library that uses node-local storage to significantly improve the checkpointing performance of large-scale supercomputers. Experiments show that SCR achieves unprecedented write speeds, reaching a measured 700GB/s of aggregate bandwidth on 8,752 processors and an estimated 1TB/s for a similarly structured machine of 12,500 processors. This corresponds to a speedup of over 70x compared to the bandwidth provided by the 10GB/s parallel file system the cluster uses. Further, SCR can adapt to an environment in which there is wide variation in performance or capacity among the individual node-local storage elements.

Bronevetsky, G; Moody, A

2009-08-18T23:59:59.000Z

444

A systemic perspective for mass customization: an approach for product lines definition Antonio Giovannini1,2,3, Alexis Aubry1,2, Herv Panetto1,2, Hind El Haouzi1,2  

E-Print Network [OSTI]

A systemic perspective for mass customization: an approach for product lines definition Antonio and commercializes air-handling systems. In MC, a commonly accepted solution for managing product variety is develop a configuration system in which customer can enter values for some options in order to define a product variant

Paris-Sud XI, Universit茅 de

445

10 - Improving the environmental performance of heavy-duty vehicles and engines: key issues and system design approaches  

Science Journals Connector (OSTI)

Abstract: This chapter reviews various advanced technologies to improve the efficiency and environmental performance of heavy-duty engines, including design and operating characteristics of key subsystems such as fuel injection, conventional and advanced low-temperature combustion, turbocharging, exhaust gas recirculation (EGR), variable valve actuation (VVA), cooling, aftertreatment, waste heat recovery (WHR), and electronic controls. Engine downsizing, down-speeding, down-breathing, turbocompounding, and air system capability performance are summarized by engine system theoretical analysis and numerical simulation for fuel consumption improvement.

Q. Xin; C.F. Pinzon

2014-01-01T23:59:59.000Z

446

A quasi-diagonal approach to the estimation of Lyapunov spectra for spatio-temporal systems from multivariate time series  

E-Print Network [OSTI]

We describe methods of estimating the entire Lyapunov spectrum of a spatially extended system from multivariate time-series observations. Provided that the coupling in the system is short range, the Jacobian has a banded structure and can be estimated using spatially localised reconstructions in low embedding dimensions. This circumvents the ``curse of dimensionality'' that prevents the accurate reconstruction of high-dimensional dynamics from observed time series. The technique is illustrated using coupled map lattices as prototype models for spatio-temporal chaos and is found to work even when the coupling is not strictly local but only exponentially decaying.

R. Carretero-Gonz醠ez; S. 豶stavik; J. Stark

2000-04-06T23:59:59.000Z

447

Building America Best Practices, Vol. 12- Builders Challenge Guide to 40% Whole-House Energy Savings in the Cold and Very Cold Climates  

Broader source: Energy.gov [DOE]

This Best Practices guide outlines energy saving practices to achieve 40% energy savings in the cold and very cold U.S. climate region.

448

Building America Whole-House Solutions for New Homes: Exterior Rigid Foam Insulation at the Edge of a Slab Foundation, Fresno, California  

Broader source: Energy.gov [DOE]

Exterior rigid foam insulation at the edge of the slab foundation was a unique feature for this low-load, unoccupied test house in a hot-dry climate and maybe more appropriate for climates with higher heating loads.

449

Building America Whole-House Solutions for Existing Homes: National Grid Deep Energy Retrofit Pilot, Massachusetts and Rhode Island (Fact Sheet)  

Broader source: Energy.gov [DOE]

Building Science Corporation developed a package of high-efficiency measures for retrofit of 42 homes sponsored by National Grid, resulting in energy use of approximately 40% below the Northeast regional average

450

Building America Whole-House Solutions for New Homes: Lancaster County Career and Technology Center Green Home 3- Mount Joy, Pennsylvania  

Broader source: Energy.gov [DOE]

This case study describes a unique vocational program at Lancaster County Career Technology Center in Mount Joy, PA, where high school students are gaining hands-on construction experience in building high performance homes with help from Building America team, Home Innovation Research Labs. This collaboration resulted in the Green Home 3, the third in a series of high performance homes for Apprentice Green.

452

Building America Whole-House Solutions for New and Existing Homes: Evaluating Energy Savings in All-Electric Public Housing in the Pacific Northwest (Fact sheet)  

Broader source: Energy.gov [DOE]

This project analyzes the cost effectiveness of energy-saving measures installed by a large public housing authority in Salishan, a community in Tacoma Washington.

453

Building America Whole-House Solutions for New Homes: The Performance House: A Cold Climate Challenge Home, Old Greenwich, Connecticut (Fact Sheet)  

Broader source: Energy.gov [DOE]

The first Challenge Home built in New England features cool-roof shingles, HERS 2042, and walls densely packed with blown fiberglass.

454

Building America Whole-House Solutions for New Homes: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York  

Broader source: Energy.gov [DOE]

In this project, the Consortium for Advanced Residential Buildings team sought to create a well-documented design and implementation strategy for air sealing in low-rise multifamily buildings that would assist in compliance with new building infiltration requirements of the 2012 IECC.

455

Building America Whole-House Solutions for Existing Homes: Applying Best Practices to Florida Local Government Retrofit Programs- Central Florida (Fact Sheet)  

Broader source: Energy.gov [DOE]

In this project, researchers from Building America Partnership for Improved Residential Construction worked with the City of Melbourne, Florida, to develop and implement best practices for renovating distressed homes to achieve annual energy savings of 15%-30% and higher

456

Building America Whole-House Solutions for New Homes: Low-Cost Evaluation of Energy Savings at the Community Scale, Fresno, California  

Broader source: Energy.gov [DOE]

In this project, U.S. Department of Energy Building America research team IBACOS partnered with builder Wathen Castanos Hybrid Homes in Fresno, California, to develop a simple and low-cost methodology by which community-scale energy savings can be evaluated based on results at the occupied test house level.

457

Systematic Approach to Compare the Inflammatory Response of Liver Cell Culture Systems Exposed to Silver, Copper, and Nickel Nanoparticles  

E-Print Network [OSTI]

the induced cytokine expression in a murine liver cell line (AML12). Here we also utilized another system, co-cultures of hepatocytes, Kupffer抯 cells, and lymphocytes isolated from C57BL6 mice. Cells were exposed to the materials over dose-response (0.1mg...

Banerjee, Nivedita

2011-10-21T23:59:59.000Z

458

The optimal approach for parameter settings based on adjustable contracting capacity for the hospital supply chain logistics system  

Science Journals Connector (OSTI)

This paper establishes a simulation model for the supply chain of the hospital logistic system (SCHLS) based on the dynamic Taguchi method. The model derives optimal factor level combinations in the SCHLS setting when establishing adjustable contracting ... Keywords: Genetic algorithm (GA), Neural network (NN), Supply chain (SC), Taguchi method

Hung-Chang Liao; Hsu-Hwa Chang

2011-05-01T23:59:59.000Z

459

A Case Study: A Model-Based Approach to Retrofit a Network Fault Management System with Self-Healing Functionality  

Science Journals Connector (OSTI)

Adding self-healing capabilities to network management systems holds great promise for delivering important goals, such as QoS, while simultaneously lowering capital expenditure, operation cost, and maintenance cost. In this paper, we present a model-based ... Keywords: Self-healing, aspect modeling, network management

Yan Liu; Jing Zhang; Michael Jiang; David Raymer; John Strassner

2008-03-01T23:59:59.000Z

460

Abstract--This paper presents a novel approach for a optical indoor positioning system that is currently under development at  

E-Print Network [OSTI]

that is currently under development at the Institute of Geodesy and Photogrammetry at the ETH Zurich. The new system of Technology, ETH Zurich, 8093 Zurich, Switzerland, phone: +41 44 63 33 31, web: http and Photogrammetry, Swiss Federal Institute of Technology, ETH Zurich, 8093 Zurich, Switzerland, web: www

Note: This page contains sample records for the topic "whole-house systems approach" 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

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 7, NO. 3, AUGUST 1992, PP. 1001 1011. A VECTOR ENERGY FUNCTION APPROACH FOR  

E-Print Network [OSTI]

reasonably detailed third order HVDC dynamics along with ac system models that include reactive ows the derivationof individualcompo- nent Lyapunovfunctionsforsimpli edmodelsofHVDC links connected to in nitely. Keywords: HVDC, Lyapunov functions, transient en- ergy functions, transient stability, dynamic security as

Ca帽izares, Claudio A.

462

A new approach to power quality and electricity reliability monitoring-case study illustrations of the capabilities of the I-GridTM system  

SciTech Connect (OSTI)

This report describes a new approach for collecting information on power quality and reliability and making it available in the public domain. Making this information readily available in a form that is meaningful to electricity consumers is necessary for enabling more informed private and public decisions regarding electricity reliability. The system dramatically reduces the cost (and expertise) needed for customers to obtain information on the most significant power quality events, called voltage sags and interruptions. The system also offers widespread access to information on power quality collected from multiple sites and the potential for capturing information on the impacts of power quality problems, together enabling a wide variety of analysis and benchmarking to improve system reliability. Six case studies demonstrate selected functionality and capabilities of the system, including: Linking measured power quality events to process interruption and downtime; Demonstrating the ability to correlate events recorded by multiple monitors to narrow and confirm the causes of power quality events; and Benchmarking power quality and reliability on a firm and regional basis.

Divan, Deepak; Brumsickle, William; Eto, Joseph

2003-04-01T23:59:59.000Z

463

Nafion-H catalyzed efficient condensation of indoles with aromatic aldehydes in PEG-water solvent system: A green approach  

Science Journals Connector (OSTI)

Abstract Nafion-H has been used as an efficient and reusable catalyst for an improved and rapid synthesis of bis(indolyl)methanes from electrophilic substitution of indoles with aromatic aldehydes using PEG-400:water system as medium. This methodology offered remarkable improvements in the synthesis of bis(indolyl)methanes with regard to the yield of the products, operational simplicity and green aspects by avoiding the use of expensive, toxic catalysts and solvents. Also the catalyst could be recovered after the completion of reaction and reused several times without any significant loss in its catalytic potential.

Mazaahir Kidwai; Ritika Chauhan; Divya Bhatnagar

2014-01-01T23:59:59.000Z

464

A SPOOL approach to decrease job turn-around-time on medium size IBM System/360 computers  

E-Print Network [OSTI]

/WRITE ACCESS METHOD RTN E EXCP SVC Interruption First Level Interruption Handlers SVC Interruption Haniiler EXCP Supervisor SVC Type I Exit Dispatcher Figure 2. 1 Control Flow %ithunn the System and the EXCP Supervisor instructions and also.... The SVC FLIH, after having regained control, determines if control is to be given to the dispatching rou- tine of the fixed-task supervisor or to the access method routines. The ~It/0 t t Interr ption ~Su rr'a r. When nn I/O operation terminates, an I...

Bianchi, Maurice Rodolphe

1967-01-01T23:59:59.000Z

465

Potential of carbon nanotubes in water purification: an approach towards the development of an integrated membrane system  

Science Journals Connector (OSTI)

The problems of water shortages and lack of access to safe drinking water have been and will continue to grow as major global problems. To alleviate these problems, water purification technologies are being updated. Recent years have witnessed impressive breakthroughs towards practical application of nanostructured materials such as Carbon Nanotubes (CNTs) in the field of water purification owing to their unique thermal, electrical and mechanical properties. These nanoscale structures need to be arranged into well-defined configurations in order to build integrated systems with high efficiency (the nanotubes being reusable, whereas the traditional membranes foul easily and require frequent replacements), high flux (owing to the hydrophobic super smooth inner surface of nanotubes), and with improvements in chemical selectivity (through suitable chemical functionalisation of the CNTs), so that the idea of using CNTs in separation technology can be made realistic and the potential benefits of practical application of these unique materials can be exploited. This paper assesses the CNTs as an emerging technology in water purification system, particularly with respect to its potential for the removal of arsenic, fluoride, heavy metals and toxic organic components.

Soumitra Kar; R.C. Bindal; S. Prabhakar; P.K. Tewari; K. Dasgupta; D. Sathiyamoorthy

2008-01-01T23:59:59.000Z

466

On the economic potential for electric load management in the German residential heating sector An optimising energy system model approach  

Science Journals Connector (OSTI)

Abstract Against the background of the ambitious German targets for renewable energy and energy efficiency, this paper investigates the economic potential for thermal load management with virtual power plants consisting of micro-cogeneration plants, heat pumps and thermal storage within the residential sector. An optimising energy system model of the electricity and residential heat supply in Germany is developed in the TIMES (The Integrated MARKAL EFOM System) modelling framework and used to determine capacity developments and dispatch of electricity and residential heat generation technologies until 2050. The analysed scenarios differ with respect to the rate of technological development of heat and power devices, fuel and CO2 prices as well as renewable electricity expansion. Results show that high fuel prices and a high renewable electricity expansion favour heat pumps and insulation measures over micro-cogeneration, whereas lower fuel prices and lower renewable electricity expansion relatively favour the expansion of micro-cogeneration. In the former case heat pump capacities increase to around 67燝Wel, whereas in the latter case the total capacity of micro-cogeneration reaches 8燝Wel. With the aid of thermal storage, this provides considerable flexibility for electrical load shifting through heat pumps and electricity generation from micro-cogeneration in residential applications, needed for the integration of fluctuating renewable electricity technologies.

Daniel Fehrenbach; Erik Merkel; Russell McKenna; Ute Karl; Wolf Fichtner

2014-01-01T23:59:59.000Z

467

A new approach for optimal sizing of battery energy storage system for primary frequency control of islanded Microgrid  

Science Journals Connector (OSTI)

Abstract This paper presents a method for determining optimal size of a battery energy storage system (BESS) for primary frequency control of a Microgrid. A Microgrid is assumed to be portion of a low voltage distribution feeder including sources such as microturbine, diesel generator, fuel cell and photovoltaic system with slow response for frequency control. A BESS due to its very fast dynamic response can play an important role in restoring balance between supply and demand. In this paper, overloading capacity of the BESS is employed for fast handling of the primary frequency control of a MG. To achieve this purpose, by considering overloading characteristics and limitations of the state of charge (SOC) of battery, a control scheme of dc/ac converter for the BESS is developed. Based on this scheme, overloading capacity of the BESS and its permissible duration for participating in primary frequency control is determined. Simulation studies are carried out using PSCAD/EMTDC software package to evaluate the performance of the proposed control scheme.

Mohammad Reza Aghamohammadi; Hajar Abdolahinia

2014-01-01T23:59:59.000Z

468

Electron capture and electron transport by fast ions penetrating solids: An open quantum system approach with sources and sinks  

Science Journals Connector (OSTI)

We present a joint theoretical and experimental study of the time evolution of electronic states of highly charged hydrogenic ions formed by capture during transmission through solids as they undergo multiple collisions and radiative decay. For this transport problem we have developed an inhomogeneous nonunitary Lindblad master equation that allows for a description of open quantum systems with both sinks (electron loss) and source (capture) present. We apply this theoretical framework to study transient coherences created in electron capture by 13.6MeV?amu Ar18+ ions transmitted through amorphous carbon foils and decoherence during subsequent interaction with the foil. In the limit of thin targets we can directly probe electron capture cross sections under single collision conditions, while for thicker targets we follow the partially coherent dynamics of the open quantum system in interaction with the solid as a function of interaction time. The calculated results are in close agreement with experimental data obtained at the LISE facility in GANIL. Photon intensities from excited argon ions were determined through high resolution x-ray spectroscopy in which individual fine structure components were resolved. Measurements were performed for a wide range of carbon foil thickness to study the time development of the excited state populations.

Marek Seliger; Carlos O. Reinhold; Tatsuya Minami; David R. Schultz; Michael S. Pindzola; Shuhei Yoshida; Joachim Burgd鰎fer; Emily Lamour; Jean-Pierre Rozet; Dominique Vernhet

2007-03-19T23:59:59.000Z

469

Double-Pionic Fusion of Nuclear Systems and the 'ABC' Effect: Approaching a Puzzle by Exclusive and Kinematically Complete Measurements  

SciTech Connect (OSTI)

The ABC effect--a puzzling low-mass enhancement in the {pi}{pi} invariant mass spectrum, first observed by Abashian, Booth, and Crowe--is well known from inclusive measurements of two-pion production in nuclear fusion reactions. Here we report on the first exclusive and kinematically complete measurements of the most basic double-pionic fusion reaction pn{yields}d{pi}{sup 0}{pi}{sup 0} at beam energies of 1.03 and 1.35 GeV. The measurements, which have been carried out at CELSIUS-WASA, reveal the ABC effect to be a ({pi}{pi}){sub I=L=0} channel phenomenon associated with both a resonancelike energy dependence in the integral cross section and the formation of a {delta}{delta} system in the intermediate state. A corresponding simple s-channel resonance ansatz provides a surprisingly good description of the data.

Bashkanov, M.; Clement, H.; Doroshkevich, E.; Khakimova, O.; Kren, F.; Meier, R.; Pricking, A.; Skorodko, T.; Wagner, G. J. [Physikalisches Institut der Universitaet Tuebingen, D-72076 Tuebingen (Germany); Bargholtz, C.; Geren, L.; Lindberg, K.; Tegner, P.-E.; Zartova, I. [Department of Physics, Stockholm University, Stockholm (Sweden); Berlowski, M.; Stepaniak, J. [Soltan Institute of Nuclear Studies, Warsaw and Lodz (Poland); Bogoslawsky, D.; Ivanov, G.; Jiganov, E.; Morosov, B. [Joint Institute for Nuclear Research, Dubna (Russian Federation)] (and others)

2009-02-06T23:59:59.000Z

470

A hybrid approach with fuzzy logic in a multi-agent system for controlling autonomous mobile robots in known environments  

Science Journals Connector (OSTI)

This paper describes the development of a multi-agent system (MAS), which is supported with fuzzy logic (to control the robot's movements in a reactive path) and vision, which helps the control of an autonomous mobile robot to exit a maze. The research consists of two stages. In the first stage the problem is to be able to make the robot exit a maze, the mobile robot is positioned at the entrance (point A) and should reach an exit (B), it should be noted that we are working with a NXT Lego MINDSTORMS robot. In its second phase the problem is to make the robot search for a recognised object, for this, a camera is used to capture images, which will be processed with vision techniques, for their identification, and after that, the MAS takes the decision to evade or take the object as considered appropriate.

Cinthya Solano-Aragon; Arnulfo Alanis; Oscar Castillo

2010-01-01T23:59:59.000Z

471

Assessment of diurnal systemic dose of agrochemicals in regulatory toxicity testing An integrated approach without additional animal use  

Science Journals Connector (OSTI)

Integrated toxicokinetics (TK) data provide information on the rate, extent and duration of systemic exposure across doses, species, strains, gender, and life stages within a toxicology program. While routine for pharmaceuticals, TK assessments of non-pharmaceuticals are still relatively rare, and have never before been included in a full range of guideline studies for a new agrochemical. In order to better understand the relationship between diurnal systemic dose (AUC24h) and toxicity of agrochemicals, TK analyses in the study animals is now included in all short- (excluding acute), medium- and long-term guideline mammalian toxicity studies including reproduction/developmental tests. This paper describes a detailed procedure for the implementation of TK in short-, medium- and long-term regulatory toxicity studies, without the use of satellite animals, conducted on three agrochemicals (X11422208, 2,4-D and X574175). In these studies, kinetically-derived maximum doses (KMD) from short-term studies instead of, or along with, maximum tolerated doses (MTD) were used for the selection of the high dose in subsequent longer-term studies. In addition to leveraging TK data to guide dose level selection, the integrated program was also used to select the most appropriate method of oral administration (i.e., gavage versus dietary) of test materials for rat and rabbit developmental toxicity studies. The integrated TK data obtained across toxicity studies (without the use of additional/satellite animals) provided data critical to understanding differences in response across doses, species, strains, sexes, and life stages. Such data should also be useful in mode of action studies and to improve human risk assessments.

Shakil A. Saghir; Michael J. Bartels; David L. Rick; Alene T. McCoy; Reza J. Rasoulpour; Robert G. Ellis-Hutchings; M. Sue Marty; Claire Terry; Jason P. Bailey; Richard Billington; James S. Bus

2012-01-01T23:59:59.000Z

472

Integrated High-Level Waste System Planning - Utilizing an Integrated Systems Planning Approach to Ensure End-State Definitions are Met and Executed - 13244  

SciTech Connect (OSTI)

The Savannah River Site (SRS) is a Department of Energy site which has produced nuclear materials for national defense, research, space, and medical programs since the 1950's. As a by-product of this activity, approximately 37 million gallons of high-level liquid waste containing approximately 292 million curies of radioactivity is stored on an interim basis in 45 underground storage tanks. Originally, 51 tanks were constructed and utilized to support the mission. Four tanks have been closed and taken out of service and two are currently undergoing the closure process. The Liquid Waste System is a highly integrated operation involving safely storing liquid waste in underground storage tanks; removing, treating, and dispositioning the low-level waste fraction in grout; vitrifying the higher activity waste at the Defense Waste Processing Facility; and storing the vitrified waste in stainless steel canisters until permanent disposition. After waste removal and processing, the storage and processing facilities are decontaminated and closed. A Liquid Waste System Plan (hereinafter referred to as the Plan) was developed to integrate and document the activities required to disposition legacy and future High-Level Waste and to remove from service radioactive liquid waste tanks and facilities. It establishes and records a planning basis for waste processing in the liquid waste system through the end of the program mission. The integrated Plan which recognizes the challenges of constrained funding provides a path forward to complete the liquid waste mission within all regulatory and legal requirements. The overarching objective of the Plan is to meet all Federal Facility Agreement and Site Treatment Plan regulatory commitments on or ahead of schedule while preserving as much life cycle acceleration as possible through incorporation of numerous cost savings initiatives, elimination of non-essential scope, and deferral of other scope not on the critical path to compliance. There is currently a premium on processing and storage space in the radioactive liquid waste tank system. To enable continuation of risk reduction initiatives, the Plan establishes a processing strategy that provides tank space required to meet, or minimizes the impacts to meeting, programmatic objectives. The Plan also addresses perturbations in funding and schedule impacts. (authors)

Ling, Lawrence T. [URS-Savannah River Remediation, Savannah River Site, Building 766-H Room 2205, Aiken, SC 29808 (United States)] [URS-Savannah River Remediation, Savannah River Site, Building 766-H Room 2205, Aiken, SC 29808 (United States); Chew, David P. [URS-Savannah River Remediation, Savannah River Site, Building 766-H Room 2426, Aiken, SC 29808 (United States)] [URS-Savannah River Remediation, Savannah River Site, Building 766-H Room 2426, Aiken, SC 29808 (United States)

2013-07-01T23:59:59.000Z

473

On the degree distribution of horizontal visibility graphs associated to Markov processes and dynamical systems: diagrammatic and variational approaches  

E-Print Network [OSTI]

Dynamical processes can be transformed into graphs through a family of mappings called visibility algorithms, enabling the possibility of (i) making empirical data analysis and signal processing and (ii) characterising classes of dynamical systems and stochastic processes using the tools of graph theory. Recent works show that the degree distribution of these graphs encapsulates much information on the signals variability, and therefore constitutes a fundamental feature for statistical learning purposes. However, exact solutions for the degree distributions are only known in a few cases, such as for uncorrelated random processes. Here we analytically explore these distributions in a list of situations. We present a diagrammatic formalism which computes for all degrees their corresponding probability as a series expansion in a coupling constant which is the number of hidden variables. We offer a constructive solution for general Markovian stochastic processes and deterministic maps. As case tests we focus on Ornstein-Uhlenbeck processes, fully chaotic and quasiperiodic maps. Whereas only for certain degree probabilities can all diagrams be summed exactly, in the general case we show that the perturbation theory converges. In a second part, we make use of a variational technique to predict the complete degree distribution for special classes of Markovian dynamics with fast-decaying correlations. In every case we compare the theory with numerical experiments.

Lucas Lacasa

2014-02-21T23:59:59.000Z

474

The role of electric cars in Amsterdam抯 transport system in the year 2015; a scenario approach  

Science Journals Connector (OSTI)

Electric cars may contribute significantly to a reduction in external costs of urban transport. This paper investigates, using a scenario analysis, the necessary conditions for their possible introduction in the city of Amsterdam. First, a background sketch of recent developments in Amsterdam is given, followed by an outline of the potential of, and the problems inherent in, the introduction of electric cars. Four scenarios are constructed by means of the so-called Spider-model. It is visualized in a picture that consists of quadrants and eight axes on which important future developments are sketched on a five point scale. The quadrants represent policy concerns about national and international flanking policies, local economic developments, local spatial policies and public transport policies, respectively. The scenarios used are: 慞rosperous Amsterdam, 慡ustainable Amsterdam, 慞auperized Amsterdam and 慙onely Amsterdam, which largely differ in economic developments and in the spatial focus on sustainability issues. These scenarios act as frameworks for the policy development centered around the future adaption of electric cars in the city. Finally, the transport system and the potential role of the electric car in each scenario is investigated. It is concluded that flanking policies at all levels of spatial aggregation, as well as economic development are a sine qua non for a successful introduction of the electric car.

Sytze A Rienstra; Peter Nijkamp

1998-01-01T23:59:59.000Z

475

Novel Approaches to Immobilized Heteropoly Acid Systems for High Temperature, Low Relative Humidity Polymer-Type Membranes - Final Report  

SciTech Connect (OSTI)

Original research was carried out at the CSM and the 3M Company from March 2007 through September 2011. The research was aimed at developing new to the world proton electrolyte materials for use in hydrogen fuel cells, in particular with high proton conductivity under hot and dry conditions (>100mS/cm at 120癈 and 50%RH). Broadly stated, the research at 3M and between 3M and CSM that led to new materials took place in two phases: In the first phase, hydrocarbon membranes that could be formed by photopolymerization of monomer mixtures were developed for the purpose of determining the technical feasibility of achieving the program's Go/No-Go decision conductivity target of >100mS/cm at 120癈 and 50%RH. In the second phase, attempts were made to extend the achieved conductivity level to fluorinated material systems with the expectation that durability and stability would be improved (over the hydrocarbon material). Highlights included: Multiple lots of an HPA-immobilized photocurable terpolymer derived from di-vinyl-silicotungstic acid (85%), n-butyl acrylate, and hexanediol diacrylate were prepared at 3M and characterized at 3M to exhibit an initial conductivity of 107mS/cm at 120癈 and 47%RH (PolyPOM85v) using a Bekktech LLC sample fixture and TestEquity oven. Later independent testing by Bekktech LLC, using a different preheating protocol, on the same material, yielded a conductivity value of approximately 20mS/cm at 120癈 and 50%RH. The difference in measured values is likely to have been the result of an instability of properties for the material or a difference in the measurement method. A dispersed catalyst fuel cell was fabricated and tested using a 150糾 thick HPA-based photocurable membrane (above, PolyPOM75v), exhibiting a current density of greater than 300mA/cm2 at 0.5V (H2/Air 800/1800sccm 70癈/75%RH ambient outlet pressure). Multiple lots of a co-polymer based on poly-trifluorovinylether (TFVE) derived HPA were synthesized and fabricated into films, Generation II films. These materials showed proton conductivities as high as 1 S/cm under high RH conditions. However, the materials suffered from compromised properties due to impure monomers and low molecular weights. Multiple lots of an HPA-immobilized fluoropolymer derived from preformed PVDF-HFP (Generation III films) were synthesized and formed into membranes at 3M and characterized at 3M to exhibit conductivity reaching approximately 75mS/cm at 120癈/40%RH using a Bekktech sample fixture and TestEquity oven (optimized membrane, at close of program). Initial fuel cell fabrication and testing for this new class of membrane yielded negative results (no measureable proton conductivity); however, the specific early membrane that was used for the two 5cm2 MEAs was later determined to have <1 mS/cm at 80癈/80%RH using the Bekktech fixture, vs. ca. 200 mS/cm at 80癈/80%RH for samples of the later-optimized type described above. Future work in this area (beyond the presently reported contract) should include additional attempts to fabricate and test fuel cells based on the later-optimized Generation II and III polymer. A manufacturing study was performed which predicted no difficulties in any future scale up of the materials.

Herring, Andrew M; Horan, James L; Aieta, Niccolo V; Sachdeva, Sonny; Kuo, Mei-Chen; Ren, Hui; Lingutla, Anitha; Emery, Michael; Haugen, Gregory M; Yandrasits, Michael A; Sharma, Neeraj; Coggio, William D; Hamrock, Steven J; Frey, Matthew H

2012-05-20T23:59:59.000Z

476

A linguistic approach to user interface design  

Science Journals Connector (OSTI)

... 2001 Elsevier Science B.V. All rights...Articles A linguistic approach to user interface...User Interface Management Systems 1992 Morgan-Kaufman...object-oriented approach to distributed data management, The Journal of Systems......

Rumen Dimov Andreev

2001-05-01T23:59:59.000Z

477

Systems biology approach to bioremediation  

E-Print Network [OSTI]

51]. The MC252 oil spill in the Gulf of Mexico in 2010 wasoil from the Deepwater Horizon spill in offshore surface waters of the Gulf of Mexico.

Chakraborty, R.

2013-01-01T23:59:59.000Z

478

Systems biology approach to bioremediation  

E-Print Network [OSTI]

Seismic and radar tomographic monitoring (b) Microbial cell counts (c) PhyloChip (d) Microbial isolation (e) FISH (

Chakraborty, R.

2013-01-01T23:59:59.000Z

479

Optimal design and control strategies for novel combined heat and power (CHP) fuel cell systems. Part I of II, datum design conditions and approach.  

SciTech Connect (OSTI)

Energy network optimization (ENO) models identify new strategies for designing, installing, and controlling stationary combined heat and power (CHP) fuel cell systems (FCSs) with the goals of (1) minimizing electricity and heating costs for building owners and (2) reducing emissions of the primary greenhouse gas (GHG) - carbon dioxide (CO{sub 2}). A goal of this work is to employ relatively inexpensive simulation studies to discover more financially and environmentally effective approaches for installing CHP FCSs. ENO models quantify the impact of different choices made by power generation operators, FCS manufacturers, building owners, and governments with respect to two primary goals - energy cost savings for building owners and CO{sub 2} emission reductions. These types of models are crucial for identifying cost and CO{sub 2} optima for particular installations. Optimal strategies change with varying economic and environmental conditions, FCS performance, the characteristics of building demand for electricity and heat, and many other factors. ENO models evaluate both 'business-as-usual' and novel FCS operating strategies. For the scenarios examined here, relative to a base case of no FCSs installed, model results indicate that novel strategies could reduce building energy costs by 25% and CO{sub 2} emissions by 80%. Part I of II articles discusses model assumptions and methodology. Part II of II articles illustrates model results for a university campus town and generalizes these results for diverse communities.

Colella, Whitney G.

2010-06-01T23:59:59.000Z

480

A New Approach in Urea Dosing to Improve Performance and Durability of SCR Systems for the Use in Off-Road Applications to Fulfill Tier 4 Final  

Broader source: Energy.gov [DOE]

Evaluation of influence of spray quality on urea decomposition and catalyst performance leads to new approach in dosing, using special nozzle and air-supply strategy

Note: This page contains sample records for the topic "whole-house systems approach" 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

An investigation approach to test protection intelligent electronic devices (IEDs) in IEC 61850 based substation automation systems (SAS) at station level.  

E-Print Network [OSTI]

??This thesis has developed a new approach to trace virtual protection signals in Electrical substation networks. The main goal of the research was to analyse (more)

Nick, Shawn

2014-01-01T23:59:59.000Z

482

2nd Workshop on Process-based approaches for Model-Driven Engineering (submission) This work was partially supported by the PCSI program Zero Defect Systems (http://www.auf.org/anglais)  

E-Print Network [OSTI]

2nd Workshop on Process-based approaches for Model-Driven Engineering (submission) This work and traditional verification by simulation is no more practical. Moreover, the increase in integration density would like to emphasize is that refinement (from an abstract model to the point where the system

Boyer, Edmond

483

Integrated pest management: the push杙ull approach for controlling insect pests and weeds of cereals, and its potential for other agricultural systems including animal husbandry  

Science Journals Connector (OSTI)

...integrated pest management Clearly, by...hypothesis-driven science, new technologies...expression, this approach could help to...parasitic wasps. Science. 250, 1251-1253...10.1126/science.250.4985...integrated pest management and chemical...the push-pull approach for controlling...

2008-01-01T23:59:59.000Z

484

Conceptual Approach For Estimating Potential Air Toxics And Radionuclide Airborne Emissions From A Temporary Exhaust System For The 216-Z-9 Crib Removal Action  

SciTech Connect (OSTI)

The 216-Z-9 Crib, located at the Hanford Nuclear Reservation in southeastern Washington State, was the site of a successful mining effort to recover plutonium from the contaminated soils at the disposal site. A CERCLA Action Memorandum (AM) issued by the U.S. Department of Energy (DOE) requires the removal of the buildings associated with this mining effort to facilitate a remedial action planned for the near future. The decontamination and demolition of the 216 Z-9 Crib facilities is required under a consent order between the DOE, the U.S Environmental Protection Agency (EPA) and the Washington State Department of Ecology (Ecology). Removal of the buildings located on and near the concrete cover slab over the 216-Z-9 Crib will require removal of the large soil-packaging glovebox located inside the 216-Z- 9A Building. Prior to cleaning out the glovebox, it will be necessary to provide active filtered ventilation capability to ensure a negative pressure exists between the glovebox and the adjacent airspace while hands-on work proceeds within. The glovebox floor is open to the Z-9 crib cavern environment below. For this reason the crib and glovebox currently share a common airspace. The functional requirements for safely conducting work within the glovebox include provision of a negative pressure in the box of about 0.5 inches of water gage (nominal) less than the interior of the building. In addition, the building surrounding the glovebox will be maintained at a slight negative pressure with respect to outdoor ambient pressure. In order to assess the relevant and appropriate clean air requirements for the new temporary ventilation system and associated emissions monitoring, it was necessary to reliably predict the nature of the exhaust air stream. Factors used to predict the presence and concentrations of certain radionuclide particulates and certain gases considered to be air toxics, included reliability parameters, flow rates, radionuclide content, and off-gas compositions. Radionuclide content includes transuranic isotopes, primarily of plutonium and americium. Air toxics include carbon tetrachloride, butane, methanol, acetone and toluene. Flow rate prediction was based on available design and test data and considered equipment sizes, glovebox negative pressure requirements, and filter flow characteristics. The approach used to predict the off-gas composition from the crib required experience-based predictive analysis combined with crib head space analytical results. Input information for emission estimates included: (1) gas composition sample data obtained from recent samples taken within the crib head space during static conditions, and (2) air in-leakage/dilution estimates based on physical characteristics of both the crib and the new temporary ventilation system. The conceptual approach combined measurement-based data with conservative assumptions, and provides the estimates necessary to determine relevance and appropriateness of substantive requirements under federal and state laws and regulations. (authors)

Hopkins, A.; Sutter, C.; O'Brien, P.; Bates, J.; Klos, B. [Fluor Hanford Inc., Richland, WA (United States); Teal, J. [Fluor Federal Services, Richland, WA (United States); Oates, L. [Environmental Quality Management, Inc., Richland, WA (United States)

2008-07-01T23:59:59.000Z

485

Integrated Approach to Use Natural Chemical and Isotopic Tracers...  

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

Integrated Approach to Use Natural Chemical and Isotopic Tracers to Estimate Fracture Spacing and Surface Area in EGS Systems Integrated Approach to Use Natural Chemical and...

486

High Level Computational Chemistry Approaches to the Prediction...  

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

High Level Computational Chemistry Approaches to the Prediction of Energetic Properties of Chemical Hydrogen Storage Systems High Level Computational Chemistry Approaches to the...

487

INTERIOR DUCT SYSTEM DESIGN, CONSTRUCTION, AND PERFORMANCE  

SciTech Connect (OSTI)

By removing air distribution and conditioning equipment from unconditioned spaces, homeowners stand to benefit substantially with respect to both energy savings and indoor air quality. Duct leakage introduces: Greater heating and cooling loads from air at extreme temperatures and humidity levels; Outside air and air from unconditioned spaces that may contain air borne contaminants, combustion gases, pollen, mold spores, and/or particles of building materials; and Higher whole-house infiltration/exfiltration rates. Exemplary studies conducted since 1990 have demonstrated the prevalence of duct leakage throughout the United States and measured energy savings of approximately 20% during both heating and cooling seasons from leakage reduction. These all dealt with duct leakage to and/or from unconditioned spaces. In the building science community, leakage within the conditioned space is generally presumed to eliminate the negative consequences of duct leakage with the exception of possibly creating pressure imbalances in the house which relates to higher infiltration and/or exfiltration. The practical challenges of isolating ducts and air handlers from unconditioned spaces require builders to construct an air-tight environment for the ducts. Florida Solar Energy Center researchers worked with four builders in Texas, North Carolina, and Florida who build a furred-down chase located either in a central hallway or at the edges of rooms as an architectural detail. Some comparison homes with duct systems in attics and crawl spaces were included in the test group of more than 20 homes. Test data reveals that all of the duct/AHU systems built inside the conditioned space had lower duct leakage to unconditioned spaces than their conventional counterparts; however, none of the homes was completely free of duct leakage to unconditioned spaces. Common problems included wiring and plumbing penetrations of the chase, failure to treat the chase as an air tight space, and misguided fresh air inlet design. Improvements were implemented by the Texas builder and retested in July. Results showed a 36% reduction in duct leakage, significant enough to warrant the builder adopting the new sealing procedure.

Janet E.R. Mcllvaine; David Beal; Philip Fairey

2001-10-10T23:59:59.000Z

488

Memory effect on the multiphoton coherent destruction of tunneling in the electron transport of nanoscale systems driven by a periodic field: A generalized Floquet approach  

E-Print Network [OSTI]

Memory effect on the multiphoton coherent destruction of tunneling in the electron transport Floquet approach beyond the wide-band limit is developed for the general treatment of memory effect the significance of memory effect as well as illustrating the origin of the MP-CDT phenomenon. DOI: 10.1103/Phys

Chu, Shih-I

489

A Dynamical Approach to Temperature  

E-Print Network [OSTI]

We present a new dynamical approach for measuring the temperature of a Hamiltonian dynamical system in the micro canonical ensemble of thermodynamics. We show that under the hypothesis of ergodicity the temperature can be computed as a time-average of the functional, div(grad H/|grad H|^2), on the energy-surface. Our method not only yields an efficient computational approach for determining the temperature it also provides an intrinsic link between dynamical systems theory and the statistical mechanics of Hamiltonian systems.

Hans Henrik Rugh

1997-01-30T23:59:59.000Z

490

Methodological approach towards sustainability by integration of environmental impact in production system models through life cycle analysis: Application to the Rioja wine sector  

Science Journals Connector (OSTI)

This paper proposes the integration of life cycle analysis within the production system models as a tool for decision making (whether at the strategic, tactical or operational levels) attending not only economic and technical criteria but also the environmental ... Keywords: decision making, environmental impact, life cycle assessment, modeling and simulation, production systems, sustainability

Emilio Jim閚ez; Eduardo Mart韓ez; Julio Blanco; Mercedes P閞ez; Charmery Graciano

2014-02-01T23:59:59.000Z

491

SP 800-37 Rev. 1. Guide for Applying the Risk Management Framework to Federal Information Systems: a Security Life Cycle Approach  

Science Journals Connector (OSTI)

The purpose of SP 800-37 Rev 1 is to provide guidelines for applying the Risk Management Framework to federal information systems to include conducting the activities of security categorization, security control selection and implementation, security ... Keywords: FISMA, Risk management framework, categorize, common controls, continuous monitoring, information systems, roles and responsibilities, security authorization, security controls

Joint Task Force Transformation Initiative

2010-02-01T23:59:59.000Z

492

An approach for hierarchical system level diagnosis of massively parallel computers combined with a simulation-based method for dependability analysis  

Science Journals Connector (OSTI)

The primary focus in the analysis of massively parallel supercomputers has traditionally been ... topologies, large number of processors, and sophisticated system software can make them very unreliable. If ... of...

J. Altmann; F. Balbach; A. Hein

1994-01-01T23:59:59.000Z

493

DMSP-IEES: A Stochastic Programming Model Based on Dual-Interval and Multi-Stage Scenarios Modeling Approaches for Energy Systems Management and GHG Emissions Control  

Science Journals Connector (OSTI)

Energy-related activities contribute a major portion of anthropogenic greenhouse gas (GHG) emissions into the atmosphere. In this ... -environment systems management, in which issues of GHG-emission mitigation ca...

G. C. Li; G. H. Huang; Z. F. Liu

2014-10-01T23:59:59.000Z

494

A Novel Approach to the Design of an In-Wheel Semi-Anhysteretic Axial-Flux Switched-Reluctance Motor Drive System for Electric Vehicles .  

E-Print Network [OSTI]

??This thesis presents the development of an in-wheel drive system consisting of an axial-flux switched-reluctance motor and a hub suspension. The motor is designed using (more)

Lambert, Tim

2013-01-01T23:59:59.000Z

495

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 16, NO. 4, NOVEMBER 2001 935 Discussion of "A Physical-Flow-Based Approach to  

E-Print Network [OSTI]

to Allocating Transmission Losses in a Transaction Framework" George Gross and Shu Tao The authors are grateful, England. Publisher Item Identifier S 0885-8950(01)09812-1. 1G. Gross and S. Fao, IEEE Trans. Power Systems

Gross, George

496

Engine ground demonstration test approach  

SciTech Connect (OSTI)

The hardware portion of the current phase of the Integrated Solar Upper Stage (ISUS) program culminates in a system ground demonstration test. The potential application of ISUS technology to a wide array of future missions complicates the process of selecting from among demonstration system design options and test approaches. The approach to this system demonstration has been to maximize system technology readiness level for the entire array of potential missions within the constraints of the program. To this end, system design and test operations planning has been carried out with a premium on demonstrating those elements of the system common to all missions. In addition, test planning has been managed to allow margin for testing those portions of the system envelope needed to confirm acceptable operation for scenarios within the mission set that are specific to a given mission or mission type. Examples drawn from the specific Engine Ground Demonstration (EGD) design selections are used to illuminate this approach, with the result that the EGD system design is not only described, but the reasons for its particular characteristics are made evident.

Kudija, C.T. [Rockwell Aerospace, Canoga Park, CA (United States). Rocketdyne Div.

1996-12-31T23:59:59.000Z

497

Modelling of long-term and short-term mechanisms of arterial pressure control in the cardiovascular system: An object-oriented approach  

Science Journals Connector (OSTI)

Abstract A mathematical model that provides an overall description of both the short- and long-term mechanisms of arterial pressure regulation is presented. Short-term control is exerted through the baroreceptor reflex while renal elimination plays a role in long-term control. Both mechanisms operate in an integrated way over the compartmental model of the cardiovascular system. The whole system was modelled in MODELICA, which uses a hierarchical object-oriented modelling strategy, under the DYMOLA simulation environment. The performance of the controlled system was analysed by simulation in light of the existing hypothesis and validation tests previously performed with physiological data, demonstrating the effectiveness of both regulation mechanisms under physiological and pathological conditions.

J. Fernandez de Canete; J. Luque; J. Barbancho; V. Munoz

2014-01-01T23:59:59.000Z

498

A pseudo-optimal inexact stochastic interval T2 fuzzy sets approach for energy and environmental systems planning under uncertainty: A case study for Xiamen City of China  

Science Journals Connector (OSTI)

Abstract In this study, a new Pseudo-optimal Inexact Stochastic Interval Type-2 Fuzzy Sets Linear Programming (PIS-IT2FSLP) energy model is developed to support energy system planning and environment requirements under uncertainties for Xiamen City. The PIS-IT2FSLP model is based on an integration of interval Type 2 (T2) Fuzzy Sets (FS) boundary programming and stochastic linear programming techniques, enables it to have robust abilities to the tackle uncertainties expressed as T2 FS intervals and probabilistic distributions within a general optimization framework. This new model can sophisticatedly facilitate system analysis of energy supply and energy conversion processes, and environmental requirements as well as provide capacity expansion options with multiple periods. The PIS-IT2FSLP model was applied to a real case study of Xiamen energy systems. Based on a robust two-step solution algorithm, reasonable solutions have been obtained, which reflect tradeoffs between economic and environmental requirements, and among seasonal volatility energy demands of the right hand side constraints of Xiamen energy system. Thus, the lower and upper solutions of PIS-IT2FSLP would then help local energy authorities adjust current energy patterns, and discover an optimal energy strategy for the development of Xiamen City.

L. Jin; G.H. Huang; Y.R. Fan; L. Wang; T. Wu

2015-01-01T23:59:59.000Z

499

IEEE TRANSACTIONS ON COMPUTER AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 19, NO. 4, APRIL 2000 425 Return-Limited Inductances: A Practical Approach to  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON COMPUTER AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 19, NO. 4- sistance颅capacitance (RC) delays of on-chip interconnect through design and technology have resulted decomposition rules guide sparsification in these extractions. Index Terms--Inductance, parasitic extraction

Hone, James

500

An adaptive incremental approach to constructing ensemble classifiers: Application in an information-theoretic computer-aided decision system for detection of masses in mammograms  

SciTech Connect (OSTI)

Ensemble classifiers have been shown efficient in multiple applications. In this article, the authors explore the effectiveness of ensemble classifiers in a case-based computer-aided diagnosis system for detection of masses in mammograms. They evaluate two general ways of constructing subclassifiers by resampling of the available development dataset: Random division and random selection. Furthermore, they discuss the problem of selecting the ensemble size and propose two adaptive incremental techniques that automatically select the size for the problem at hand. All the techniques are evaluated with respect to a previously proposed information-theoretic CAD system (IT-CAD). The experimental results show that the examined ensemble techniques provide a statistically significant improvement (AUC=0.905{+-}0.024) in performance as compared to the original IT-CAD system (AUC=0.865{+-}0.029). Some of the techniques allow for a notable reduction in the total number of examples stored in the case base (to 1.3% of the original size), which, in turn, results in lower storage requirements and a shorter response time of the system. Among the methods examined in this article, the two proposed adaptive techniques are by far the most effective for this purpose. Furthermore, the authors provide some discussion and guidance for choosing the ensemble parameters.

Mazurowski, Maciej A.; Zurada, Jacek M.; Tourassi, Georgia D. [Department of Radiology, Carl E. Ravin Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Electrical and Computer Engineering, Computational Intelligence Laboratory, University of Louisville, Louisville, Kentucky 40292 (United States); Department of Radiology, Carl E. Ravin Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States)

2009-07-15T23:59:59.000Z