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Note: This page contains sample records for the topic "optimized rotary energy" 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

Calculator program optimizes bit weight, rotary speed, reducing drilling cost  

SciTech Connect

Bit selection, bit weight, and rotary speed have repeatedly proven to be the most important and commonly overlooked alterable factors which control penetration rate, footage, and overall drilling cost. This is particularly true in offshore operations where drilling costs are highest and the greatest cost savings stand to be achieved through implementation of proven optimization techniques. The myth that bit weights and rotary speeds cannot be optimized in directional holes has hindered the industry from using this virtually cost-free method for reducing drilling cost. The use of optimized bit weights and rotary speeds in conjunction with minimum cost bit programs based on cost per foot analysis of previous bit runs in the area was implemented on a five-well platform in the Grand Isle Block 20 field, offshore Louisiana. Each of the directional wells was drilled substantially faster and cheaper than the discovery well, which was a straight hole. Average reductions in footage cost of 31.3%, based on daily operating cost of $30,000/day, and increase in average daily footage drilled of 45.2% were effected by ''collectively optimizing'' drilling performance. The ''Optimizer'' program is an HP-41CV adaptation of the Bourgoyne and Young drilling model. It was used to calculate the optimum bit weights and rotary speeds based on field drilling tests; historical bit and bearing wear data; and current operating conditions, cost, and constraints.

Simpson, M.A.

1984-04-23T23:59:59.000Z

2

Rotary Triboelectric Nanogenerator Based on a Hybridized Mechanism for Harvesting Wind Energy  

Science Journals Connector (OSTI)

Rotary Triboelectric Nanogenerator Based on a Hybridized Mechanism for Harvesting Wind Energy ... Triboelectric nanogenerator (TENG) is a simple, cost-effective, and highly efficient approach for generating electricity from mechanical energies in a wide range of forms. ...

Yannan Xie; Sihong Wang; Long Lin; Qingshen Jing; Zong-Hong Lin; Simiao Niu; Zhengyun Wu; Zhong Lin Wang

2013-06-14T23:59:59.000Z

3

CFD Simulation of Brine-Seawater Mixing in a Rotary Energy Recovery Device  

Science Journals Connector (OSTI)

CFD Simulation of Brine-Seawater Mixing in a Rotary Energy Recovery Device ... The effects of operational conditions on the mixing behavior of rotary energy recovery device have been systematically investigated through the combined methods of computational fluid dynamics and validating experiments in this paper. ... The obtained formulas between mixing and dimensionless flow length provide a simple way to calculate and predict the mixing of device, which will be beneficial to design and operate the rotary energy recovery device in a lower mixing level. ...

Enle Xu; Yue Wang; Liming Wu; Shichang Xu; Yuxin Wang; Shichang Wang

2014-11-05T23:59:59.000Z

4

Pick sequencing optimization problem in the rotary rack S/R system  

Science Journals Connector (OSTI)

The problem of pick sequencing in the rotary rack S/R system (PPS-RRS) is ... of minimizing the execution time. The rotary rack S/R system consists of one S/...

Pan Zhang; Lei Jia; Guohui Tian

2004-08-01T23:59:59.000Z

5

A Rotary Molecular Motor Gated by Electrical Energy  

Science Journals Connector (OSTI)

DFT calculations predict that the chiral pentiptycene derivative E-1 possesses distinct rotational potential energy surfaces in the neutral vs the radical anionic (E-1•–) form such that continued electrochemical switching between E-1 and E-1•– could lead ...

Chen-Yi Kao; Hsiu-Feng Lu; Ito Chao; Jye-Shane Yang

2014-11-13T23:59:59.000Z

6

Energy Harvesting Optimization  

E-Print Network (OSTI)

Energy Harvesting Optimization Power Systems Analysis Final Project into energy harvesting techniques about two decade ago as a valuable way to satisfy those new demands. Energy harvesting derives energy from the ambient environment

Lavaei, Javad

7

Rotary Burner Demonstration  

SciTech Connect

The subject technology, the Calcpos Rotary Burner (CRB), is a burner that is proposed to reduce energy consumption and emission levels in comparison to currently available technology. burners are used throughout industry to produce the heat that is required during the refining process. Refineries seek to minimize the use of energy in refining while still meeting EPA regulations for emissions.

Paul Flanagan

2003-04-30T23:59:59.000Z

8

Cost Optimal Energy Performance  

Science Journals Connector (OSTI)

EPBD recast requires Member States (MS) to ensure that minimum energy performance requirements of buildings are set with a view to achieving cost optimal levels using a comparative methodology framework...1]. Cost

Jarek Kurnitski

2013-01-01T23:59:59.000Z

9

Nuclear energy density optimization  

Science Journals Connector (OSTI)

We carry out state-of-the-art optimization of a nuclear energy density of Skyrme type in the framework of the Hartree-Fock-Bogoliubov theory. The particle-hole and particle-particle channels are optimized simultaneously, and the experimental data set includes both spherical and deformed nuclei. The new model-based, derivative-free optimization algorithm used in this work has been found to be significantly better than standard optimization methods in terms of reliability, speed, accuracy, and precision. The resulting parameter set unedf0 results in good agreement with experimental masses, radii, and deformations and seems to be free of finite-size instabilities. An estimate of the reliability of the obtained parameterization is given, based on standard statistical methods. We discuss new physics insights offered by the advanced covariance analysis.

M. Kortelainen; T. Lesinski; J. Moré; W. Nazarewicz; J. Sarich; N. Schunck; M. V. Stoitsov; S. Wild

2010-08-13T23:59:59.000Z

10

Optimizing performance of energy systems  

SciTech Connect

This book discusses optimizing performance of energy systems. Topics covered include a test station, heat flow integrator, microcomputer control of MIMIC operation, and microcomputer control of simulation operation.

Stricker, S.

1985-01-01T23:59:59.000Z

11

Rotary kilns - transport phenomena and transport processes  

SciTech Connect

Rotary kilns and rotating industrial drying ovens are used for a wide variety of applications including processing raw minerals and feedstocks as well as heat-treating hazardous wastes. They are particularly critical in the manufacture of Portland cement. Their design and operation is critical to their efficient usage, which if done incorrectly can result in improperly treated materials and excessive, high fuel costs. This book treats all engineering aspects of rotary kilns, including thermal and fluid principles involved in their operation, as well as how to properly design an engineering process that uses rotary kilns. Chapter 1: The Rotary Kiln Evolution and Phenomenon Chapter 2: Basic Description of Rotary Kiln Operation Chapter 3: Freeboard Aerodynamic Phenomena Chapter 4: Granular Flows in Rotary Kilns Chapter 5: Mixing and Segregation Chapter 6: Combustion and Flame - includes section on types of fuels used in rotary kilns, coal types, ranking and analysis, petroleum coke combustion, scrap tire combustion, pulverized fuel (coal/coke) firing in kilns, pulverized fuel delivery and firing systems. Chapter 7: Freeboard Heat Transfer Chapter 8: Heat Transfer Processes in the Rotary Kiln Bed Chapter 9: Mass and Energy Balance Chapter 10: Rotary Kiln Minerals Process Applications.

Boateng, A.

2008-01-15T23:59:59.000Z

12

Building Energy Optimization Software | Department of Energy  

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

Energy Energy Optimization Software Building Energy Optimization Software BEopt 2.1 Now Available! BEopt Version 2.1 is now available and includes major features such as: mini-split heat pumps and room air conditioners (E+); new modeling inputs; component-based air leakage estimate for existing buildings; and more. Read about the new features and visit the BEopt website to download. To help meet Building America's goal to develop market-ready energy solutions that improve efficiency of new and existing homes, the National Renewable Energy Laboratory (NREL) developed the Building Energy Optimization (BEopt) software tool. This specialized computer program is designed to identify optimally efficient designs for new and existing homes at the lowest possible cost. BEopt produces detailed simulation-based analysis and design optimization

13

Solar-heated rotary kiln  

DOE Patents (OSTI)

A solar heated rotary kiln utilized for decomposition of materials, such as zinc sulfate is disclosed. The rotary kiln has an open end and is enclosed in a sealed container having a window positioned for directing solar energy into the open end of the kiln. The material to be decomposed is directed through the container into the kiln by a feed tube. The container is also provided with an outlet for exhaust gases and an outlet for spent solids, and rests on a tiltable base. The window may be cooled and kept clear of debris by coolant gases.

Shell, P.K.

1982-04-14T23:59:59.000Z

14

Energy optimization system  

DOE Patents (OSTI)

A system for optimizing customer utility usage in a utility network of customer sites, each having one or more utility devices, where customer site is communicated between each of the customer sites and an optimization server having software for optimizing customer utility usage over one or more networks, including private and public networks. A customer site model for each of the customer sites is generated based upon the customer site information, and the customer utility usage is optimized based upon the customer site information and the customer site model. The optimization server can be hosted by an external source or within the customer site. In addition, the optimization processing can be partitioned between the customer site and an external source.

Zhou, Zhi; de Bedout, Juan Manuel; Kern, John Michael; Biyik, Emrah; Chandra, Ramu Sharat

2013-01-22T23:59:59.000Z

15

Building Energy Optimization Analysis Method (BEopt) - Building...  

Energy Savers (EERE)

Energy Optimization Analysis Method (BEopt) - Building America Top Innovation Building Energy Optimization Analysis Method (BEopt) - Building America Top Innovation House graphic...

16

DOE Zero Energy Ready Home Webinar: Building Energy Optimization...  

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

Building Energy Optimization (BEopt) Software DOE Zero Energy Ready Home Webinar: Building Energy Optimization (BEopt) Software This webinar was presented on May 15, 2014 and gives...

17

Pump Systems Optimization: Energy Efficiency  

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

Pump Systems Pump Systems Optimization: Energy Efficiency and Bottom-Line Savings Host this one-day course to help participants learn how to identify and reduce hidden operation and energy costs. Participants will: * Identify energy savings * Increase profitability * Increase reliability * Earn seven PDH credits Attendees of the "Pump Systems Optimization" one-day course will gain valuable new skills to help them improve centrifugal pump system efficiency to reduce energy and operating costs while earning seven professional development hour (PDH) credits from the Hydraulic Institute. Topics covered include:* * Why Efficient Pump Systems Are Important

18

Building Technologies Office: Building Energy Optimization Software  

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

Building Energy Building Energy Optimization Software to someone by E-mail Share Building Technologies Office: Building Energy Optimization Software on Facebook Tweet about Building Technologies Office: Building Energy Optimization Software on Twitter Bookmark Building Technologies Office: Building Energy Optimization Software on Google Bookmark Building Technologies Office: Building Energy Optimization Software on Delicious Rank Building Technologies Office: Building Energy Optimization Software on Digg Find More places to share Building Technologies Office: Building Energy Optimization Software on AddThis.com... About Take Action to Save Energy Partner With DOE Activities Solar Decathlon Building America Research Innovations Research Tools Building Science Education Climate-Specific Guidance

19

NREL-Renewable Energy Optimization Presentation | Open Energy Information  

Open Energy Info (EERE)

NREL-Renewable Energy Optimization Presentation NREL-Renewable Energy Optimization Presentation (Redirected from Renewable Energy Optimization Presentation) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Renewable Energy Optimization Presentation Agency/Company /Organization: National Renewable Energy Laboratory Resource Type: Presentation, Training materials Website: www1.eere.energy.gov/femp/pdfs/rewg051909_walker.pdf References: Renewable Energy Optimization Presentation[1] Logo: Renewable Energy Optimization Presentation Presentation References ↑ "Renewable Energy Optimization Presentation" Retrieved from "http://en.openei.org/w/index.php?title=NREL-Renewable_Energy_Optimization_Presentation&oldid=382818" Category: Tools What links here Related changes Special pages

20

Process and Energy Optimization Revitalizes Energy Management at Eastman  

E-Print Network (OSTI)

In 2005, the Eastman-Texas Operations Energy Management Team (EMT), in response to rapidly increasing energy prices, initiated a new energy optimization program to optimize the site’s energy intensity. This new program utilized a process and energy...

Greenwaldt, W. C.

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Cleanroom Energy Optimization Methods  

E-Print Network (OSTI)

in many parts of the country. The purpose of this article is to inform the reader. Whereas, the obvious benefits for energy conservation policies are mainly ecological; corporations with vision can implement policies that also contribute... significantly to the bottom line. Semiconductor Cleanroom Energy Based upon surveys the Semiconductor industry has over 12,800,000 ft2 (1,190,000 m2) of cleanroom space in the United States varying in cleanliness from Class M1 (ISO Class 3) to Class M6...

Naughton, P.; Schrecengost, R.

2004-01-01T23:59:59.000Z

22

Rotary filtration system  

DOE Patents (OSTI)

A rotary filtration apparatus for filtering a feed fluid into permeate is provided. The rotary filtration apparatus includes a container that has a feed fluid inlet. A shaft is at least partially disposed in the container and has a passageway for the transport of permeate. A disk stack made of a plurality of filtration disks is mounted onto the shaft so that rotation of the shaft causes rotation of the filtration disks. The filtration disks may be made of steel components and may be welded together. The shaft may penetrate a filtering section of the container at a single location. The rotary filtration apparatus may also incorporate a bellows seal to prevent leakage along the shaft, and an around the shaft union rotary joint to allow for removal of permeate. Various components of the rotary filtration apparatus may be removed as a single assembly.

Herman, David T. (Aiken, SC); Maxwell, David N. (Aiken, SC)

2011-04-19T23:59:59.000Z

23

Optimal Energy Systems | Open Energy Information  

Open Energy Info (EERE)

Optimal Energy Systems Optimal Energy Systems Jump to: navigation, search Name Optimal Energy Systems Place Torrance, California Zip 90505 Product Manufacturer of flywheel power system, specialising in aerospace and defence sector. Coordinates 40.417285°, -79.223959° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.417285,"lon":-79.223959,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

24

Soft torque rotary system reduces drillstring failures  

SciTech Connect

This paper reports that the use of the soft torque system has significantly reduced torque fluctuations (up to 80%), torsional drillstring vibrations, and bit slip-stick conditions to help reduce drillstring failures and improve penetration rates in deep directional wells. The system was instrumental in eliminating expensive ($5-10 million) drillstring failures on Well SL 531 No. 3, a complex directional well in Mobile Bay. The soft torque rotary system attenuates and interrupts the torsional oscillations of the drillstring and thus prevents the buildup of energy in torsional waves that are reflected back and forth between the bit and the rotary table. The soft torque rotary system can be installed on any rig equipped with an independent electronically driven rotary table or top drive. The system is relatively inexpensive and easy to install.

Javanmardi, K.; Gaspard, D. (Shell Offshore Inc., New Orleans, LA (United States))

1992-10-12T23:59:59.000Z

25

Focus on rotary drill rigs  

SciTech Connect

This article discusses the drill rig, focusing on the rotary drill rigs. There are two principal drilling methods - rotary and percussion. In certain situations, percussion drilling is the most practical method, but for most applications, rotary drilling using the rotary-tricone bit with either steel-toothed cones or carbide inserts, is the common and accepted drilling technique. There are four principal reasons for a rotary drill rig: to provide power to the rotary-tricone bit; to provide air to clean the hole; to provide a life-support system for the rotary-tricone bits; and, to provide a stable and efficient platform from which to drill the hole.

Schivley, G.P. Jr.

1987-06-01T23:59:59.000Z

26

Energy Optimizers USA | Open Energy Information  

Open Energy Info (EERE)

Optimizers USA Optimizers USA Jump to: navigation, search Name Energy Optimizers USA Address 6 S. 3rd Street Place Tipp City, Ohio Zip 45371 Sector Biomass, Carbon, Geothermal energy, Services, Solar, Wind energy Product Business and legal services;Consulting;Energy audits/weatherization; Engineering/architectural/design;Installation;Investment/finances; Trainining and education Phone number 937-877-1919 Website http://www.energyoptimizersusa Coordinates 39.9610217°, -84.1712945° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.9610217,"lon":-84.1712945,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

27

Renewable Energy Optimization (REopt) (Fact Sheet)  

SciTech Connect

REopt is an energy planning platform offering concurrent, multiple technology integration and optimization capabilities to help clients meet their cost savings and energy performance goals.

Not Available

2014-06-01T23:59:59.000Z

28

Rotary blasthole drilling update  

SciTech Connect

Blasthole drilling rigs are the unsung heroes of open-pit mining. Recently manufacturers have announced new tools. Original equipment manufactures (OEMs) are making safer and more efficient drills. Technology and GPS navigation systems are increasing drilling accuracy. The article describes features of new pieces of equipment: Sandvik's DR460 rotary blasthole drill, P & H's C-Series drills and Atlas Copco's Pit Viper PV275 multiphase rotary blasthole drill rig. DrillNav Plus is a blasthole navigation system developed by Leica Geosystems. 5 photos.

Fiscor, S.

2008-02-15T23:59:59.000Z

29

Rotary mechanical latch  

DOE Patents (OSTI)

A rotary mechanical latch for positive latching and unlatching of a rotary device with a latchable rotating assembly having a latching gear that can be driven to latched and unlatched states by a drive mechanism such as an electric motor. A cam arm affixed to the latching gear interfaces with leading and trailing latch cams affixed to a flange within the drive mechanism. The interaction of the cam arm with leading and trailing latch cams prevents rotation of the rotating assembly by external forces such as those due to vibration or tampering.

Spletzer, Barry L.; Martinez, Michael A.; Marron, Lisa C.

2012-11-13T23:59:59.000Z

30

Optimal Energy-Bandwidth Allocation for Energy Harvesting Interference Networks  

E-Print Network (OSTI)

Optimal Energy-Bandwidth Allocation for Energy Harvesting Interference Networks Zhe Wang, Vaneet@research.att.com Abstract--We develop optimal energy-bandwidth allocation algorithm for the energy harvesting transmitters in interference networks. We assume that both the channel gain and the harvested energy are known for K slots

Fisher, Kathleen

31

Rotary shaft sealing assembly  

DOE Patents (OSTI)

A rotary shaft sealing assembly in which a first fluid is partitioned from a second fluid in a housing assembly having a rotary shaft located at least partially within. In one embodiment a lip seal is lubricated and flushed with a pressure-generating seal ring preferably having an angled diverting feature. The pressure-generating seal ring and a hydrodynamic seal may be used to define a lubricant-filled region with each of the seals having hydrodynamic inlets facing the lubricant-filled region. Another aspect of the sealing assembly is having a seal to contain pressurized lubricant while withstanding high rotary speeds. Another rotary shaft sealing assembly embodiment includes a lubricant supply providing a lubricant at an elevated pressure to a region between a lip seal and a hydrodynamic seal with a flow control regulating the flow of lubricant past the lip seal. The hydrodynamic seal may include an energizer element having a modulus of elasticity greater than the modulus of elasticity of a sealing lip of the hydrodynamic seal.

Dietle, Lannie L; Schroeder, John E; Kalsi, Manmohan S; Alvarez, Patricio D

2013-08-13T23:59:59.000Z

32

Rotary magnetic heat pump  

DOE Patents (OSTI)

A rotary magnetic heat pump constructed without flow seals or segmented rotor accomplishes recuperation and regeneration by using split flow paths. Heat exchange fluid pumped through heat exchangers and returned to the heat pump splits into two flow components: one flowing counter to the rotor rotation and one flowing with the rotation. 5 figs.

Kirol, L.D.

1987-02-11T23:59:59.000Z

33

Energy and cost optimization in industrial models  

Science Journals Connector (OSTI)

A program for Linear Energy Optimization (LEO...) which was used to investigate thermodynamical and technical options of reducing the energy-consumption of industrialized countries is extended to handle the cost ...

H. -M. Groscurth; R. Kümmel

1990-01-01T23:59:59.000Z

34

Chapter Three - Rotary Seals  

Science Journals Connector (OSTI)

This chapter discusses the range of rotary seals available that can be applied across a range of industries. The basic operation, key design features and the many potential variants of rotary-shaft lip seals are discussed, plus plastic seals that can be used to extend the performance envelope. Variants that may be used for exclusion of contaminant and alternative designs of elastomer and plastic seals, some of which can be used at high pressures in specialized applications, are covered. The basic design and operation of mechanical seals are discussed. The differences in seal designs covering the range from domestic goods and automotive through process plant to turbo machinery are covered. The key features of compression packing and modern material options are presented. A wide range of other seal types are also used in rotating machinery, particularly in high-speed turbo machinery. Current developments for a number of seal types, labyrinth, honeycomb, leaf seals, brush seals and viscoseals, are summarized.

Robert Flitney

2014-01-01T23:59:59.000Z

35

Recirculating rotary gas compressor  

DOE Patents (OSTI)

A positive displacement, recirculating Roots-type rotary gas compressor is described which operates on the basis of flow work compression. The compressor includes a pair of large diameter recirculation conduits which return compressed discharge gas to the compressor housing, where it is mixed with low pressure inlet gas, thereby minimizing adiabatic heating of the gas. The compressor includes a pair of involutely lobed impellers and an associated port configuration which together result in uninterrupted flow of recirculation gas. The large diameter recirculation conduits equalize gas flow velocities within the compressor and minimize gas flow losses. The compressor is particularly suited to applications requiring sustained operation at higher gas compression ratios than have previously been feasible with rotary pumps, and is particularly applicable to refrigeration or other applications requiring condensation of a vapor. 12 figs.

Weinbrecht, J.F.

1992-02-25T23:59:59.000Z

36

Recirculating rotary gas compressor  

DOE Patents (OSTI)

A positive displacement, recirculating Roots-type rotary gas compressor which operates on the basis of flow work compression. The compressor includes a pair of large diameter recirculation conduits (24 and 26) which return compressed discharge gas to the compressor housing (14), where it is mixed with low pressure inlet gas, thereby minimizing adiabatic heating of the gas. The compressor includes a pair of involutely lobed impellers (10 and 12) and an associated port configuration which together result in uninterrupted flow of recirculation gas. The large diameter recirculation conduits equalize gas flow velocities within the compressor and minimize gas flow losses. The compressor is particularly suited to applications requiring sustained operation at higher gas compression ratios than have previously been feasible with rotary pumps, and is particularly applicable to refrigeration or other applications requiring condensation of a vapor.

Weinbrecht, John F. (601 Oakwood Loop, NE., Albuquerque, NM 87123)

1992-01-01T23:59:59.000Z

37

Rotary power slips  

SciTech Connect

This patent describes rotary power slips, for use in the rotary table of an earth drilling rig, comprising: a body; slip means carried on the body for gripping and releasing pipe in a pipe opening in a rotary table; a stationary air transfer ring supported by the body, and having a primary fluid conduit for connection to a stationary fluid source on the drilling rig, and having a transverse upper surface with at least two concentric grooves; an annular seal ring secured to the body and having a transverse lower surface and an air passageway; expansive means including an expansive ring having inner and outer edges mounted in the grooves on the upper surface of the air transfer ring and cooperative with the lower surface of the seal ring for forming an annular expansive fluid duct to conduct fluid between the primary fluid conduit and the air passageway; a fluid cylinder mounted on the body and fluidly connected to a secondary fluid conduit through the body to the air passageway for raising and lowering the slip means in response to fluid flow through the primary fluid conduit, the air passageway, and the secondary fluid conduit; and a retainer ring in each of the grooves on the upper surface of the air transfer ring, compressed against one of the edges of the expansive ring for locking the expansive ring in place.

Crowe, W.E.

1987-07-21T23:59:59.000Z

38

Energy Optimization (Electric) - Residential Efficiency Program |  

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

Energy Optimization (Electric) - Residential Efficiency Program Energy Optimization (Electric) - Residential Efficiency Program Energy Optimization (Electric) - Residential Efficiency Program < Back Eligibility Multi-Family Residential Residential Savings Category Home Weatherization Commercial Weatherization Heating & Cooling Cooling Commercial Heating & Cooling Appliances & Electronics Heat Pumps Commercial Lighting Lighting Water Heating Windows, Doors, & Skylights Maximum Rebate Ceiling Fans: 4 Smart Power Strip: 2 Pipe Wrap: 10 ln. ft. CFL Bulbs: 12 Refrigerator Recycling: 2 Program Info State Michigan Program Type Utility Rebate Program Rebate Amount CFL Bulbs: Varies by retailer Ceiling Fan: $15 CFL Fixture: $15 LED Fixture/Downlight Kit: $20 LED Light Bulbs: $10 Smart Power Strip: $20 Room Air Conditioners: $20

39

Energy Optimization (Electric) - Commercial Efficiency Program | Department  

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

Energy Optimization (Electric) - Commercial Efficiency Program Energy Optimization (Electric) - Commercial Efficiency Program Energy Optimization (Electric) - Commercial Efficiency Program < Back Eligibility Commercial Industrial Savings Category Other Home Weatherization Commercial Weatherization Sealing Your Home Heating & Cooling Commercial Heating & Cooling Cooling Manufacturing Ventilation Construction Heat Pumps Appliances & Electronics Commercial Lighting Lighting Water Heating Windows, Doors, & Skylights Maximum Rebate General: See program web site Custom: 50% of project cost Program Info Expiration Date 12/31/2013 State Michigan Program Type Utility Rebate Program Rebate Amount Custom: $0.06/kWh/yr saved CFL Bulbs: $1 - $5 CFL Fixtures: $22/fixture High Performance T8 Lighting Retrofit: $4-$20/fixture retrofit

40

Novel and Optimized Materials Phases for High Energy Density...  

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

Novel and Optimized Materials Phases for High Energy Density Batteries Novel and Optimized Materials Phases for High Energy Density Batteries 2013 DOE Hydrogen and Fuel Cells...

Note: This page contains sample records for the topic "optimized rotary energy" 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

Nuclear Energy Density Optimization: UNEDF2  

E-Print Network (OSTI)

The parameters of the UNEDF2 nuclear energy density functional (EDF) model were obtained in an optimization to experimental data consisting of nuclear binding energies, proton radii, odd-even mass staggering data, fission-isomer excitation energies, and single particle energies. In addition to parameter optimization, sensitivity analysis was done to obtain parameter uncertainties and correlations. The resulting UNEDF2 is an all-around EDF. However, the sensitivity analysis also demonstrated that the limits of current Skyrme-like EDFs have been reached and that novel approaches are called for.

Kortelainen, M; Nazarewicz, W; Olsen, E; Reinhard, P -G; Sarich, J; Schunck, N; Wild, S M; Davesne, D; Erler, J; Pastore, A

2014-01-01T23:59:59.000Z

42

Nuclear Energy Density Optimization: UNEDF2  

E-Print Network (OSTI)

The parameters of the UNEDF2 nuclear energy density functional (EDF) model were obtained in an optimization to experimental data consisting of nuclear binding energies, proton radii, odd-even mass staggering data, fission-isomer excitation energies, and single particle energies. In addition to parameter optimization, sensitivity analysis was done to obtain parameter uncertainties and correlations. The resulting UNEDF2 is an all-around EDF. However, the sensitivity analysis also demonstrated that the limits of current Skyrme-like EDFs have been reached and that novel approaches are called for.

M. Kortelainen; J. McDonnell; W. Nazarewicz; E. Olsen; P. -G. Reinhard; J. Sarich; N. Schunck; S. M. Wild; D. Davesne; J. Erler; A. Pastore

2014-10-30T23:59:59.000Z

43

Analysis of the Energy-Saving Potential of a Three-Rotary Wheel Fresh Air-Handling Unit  

E-Print Network (OSTI)

, TRWFAHU can save 10.2% of primary energy and greatly decrease the energy consumption of chiller. If waste heat is available for regenerating the desiccant, the system can achieve greater energy savings. It is feasible to improve indoor air quality (IAQ...

Hao, X.; Zhang, G.; Zou, S.; Liu, H.

2006-01-01T23:59:59.000Z

44

Enhancing Compiler Techniques for Memory Energy Optimizations  

E-Print Network (OSTI)

in the total energy consumption equation. 1 Introduction As the market for embedded systems continues to growEnhancing Compiler Techniques for Memory Energy Optimizations Joseph Zambreno1 , Mahmut Taylan Evanston IL 60208, USA {zambro1,choudhar}@ece.northwestern.edu 2 Microsystems Design Lab Pennsylvania State

Kuzmanovic, Aleksandar

45

Modeling and optimization of HVAC energy consumption  

Science Journals Connector (OSTI)

A data-driven approach for minimization of the energy to air condition a typical office-type facility is presented. Eight data-mining algorithms are applied to model the nonlinear relationship among energy consumption, control settings (supply air temperature and supply air static pressure), and a set of uncontrollable parameters. The multiple-linear perceptron (MLP) ensemble outperforms other models tested in this research, and therefore it is selected to model a chiller, a pump, a fan, and a reheat device. These four models are integrated into an energy optimization model with two decision variables, the setpoint of the supply air temperature and the static pressure in the air handling unit. The model is solved with a particle swarm optimization algorithm. The optimization results have demonstrated the total energy consumed by the heating, ventilation, and air-conditioning system is reduced by over 7%.

Andrew Kusiak; Mingyang Li; Fan Tang

2010-01-01T23:59:59.000Z

46

Optimization Online - Survivable Energy Markets  

E-Print Network (OSTI)

Mar 9, 2006 ... Abstract: In this paper we present a centralized model for managing, at the same time, the dayahead energy market and the reserve market in ...

Gabriella Muratore

2006-03-09T23:59:59.000Z

47

Definition: Optimized Generator Operation | Open Energy Information  

Open Energy Info (EERE)

Optimized Generator Operation Optimized Generator Operation Jump to: navigation, search Dictionary.png Optimized Generator Operation Better forecasting and monitoring of load and grid performance would enable grid operators to dispatch a more efficient mix of generation that could be optimized to reduce cost. The coordinated operation of energy storage, distributed generation, or plug-in electric vehicle assets could also result in completely avoiding central generation dispatch.[1] Related Terms sustainability References ↑ SmartGrid.gov 'Description of Benefits' An LikeLike UnlikeLike You like this.Sign Up to see what your friends like. inline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Optimized_Generator_Operation&oldid=502509" Categories:

48

Sustainable energy roadmap for Austin : how Austin Energy can optimize its energy efficiency.  

E-Print Network (OSTI)

??This report asks how Austin Energy can optimally operate residential energy efficiency and demand side management programs including demand response measures. Efficient energy use is… (more)

Johnston, Andrew Hayden, 1979-

2011-01-01T23:59:59.000Z

49

Energy mix optimization from an energy security perspective  

Science Journals Connector (OSTI)

Abstract In this article, an integrated methodology is presented to assess an optimal mix and perspective development of energy generation technologies not only by technical, economic or other criteria, but also from an energy security perspective. The energy security is evaluated in terms of energy system resistance to disturbances. The methodology comprises several models, such as a stochastic model of energy systems disturbance parameters, economic-optimization model of energy systems functioning, metric and analysis techniques of energy security. The perspective development and functioning of the energy systems with stochastic disturbances is modelled using economic-optimization model with the development of different energy generation technologies. An open source energy modelling system is used as a tool for this model. The concept of energy security coefficient, which is calculated to assess energy security in terms of energy price increase and the amounts of unsupplied energy due to the disturbance consequences, is presented in the article as well. The developed methodology is applied to the case study of the reference energy system. Its various development scenarios with different energy generation technologies are analysed according to the share of technologies in the energy production. Scenarios are simulated in the stochastic environment of various disturbances and results are obtained in terms of variation of energy security coefficient over time by comparing scenarios from the energy security point of view. Finally, the results of the development scenarios are discussed, threshold shares in the energy production and optimal mix of energy generation technologies in terms of energy security are proposed, limitations of the case study are identified and some general conclusions are given.

Juozas Augutis; Linas Martišauskas; Ri?ardas Krikštolaitis

2015-01-01T23:59:59.000Z

50

Rotary shaft seal  

DOE Patents (OSTI)

The invention is a novel rotary shaft seal assembly which provides positive-contact sealing when the shaft is not rotated and which operates with its sealing surfaces separated by a film of compressed ambient gas whose width is independent of the speed of shaft rotation. In a preferred embodiment, the assembly includes a disc affixed to the shaft for rotation therewith. Axially movable, non-rotatable plates respectively supported by sealing bellows are positioned on either side of the disc to be in sealing engagement therewith. Each plate carries piezoelectric transducer elements which are electrically energized at startup to produce films of compressed ambient gas between the confronting surfaces of the plates and the disc. Following shutdown of the shaft, the transducer elements are de-energized. A control circuit responds to incipient rubbing between the plate and either disc by altering the electrical input to the transducer elements to eliminate rubbing.

Langebrake, Clair O. (Waverly, OH)

1984-01-01T23:59:59.000Z

51

Rotary shaft seal  

DOE Patents (OSTI)

The invention is a novel rotary shaft seal assembly which provides positive-contact sealing when the shaft is not rotated and which operates with its sealing surfaces separated by a film of compressed ambient gas whose width is independent of the speed of shaft rotation. In a preferred embodiment, the assembly includes a disc affixed to the shaft for rotation therewith. Axially movable, non-rotatable plates respectively supported by sealing bellows are positioned on either side of the disc to be in sealing engagement therewith. Each plate carries piezoelectric transucer elements which are electrically energized at startup to produce films of compressed ambient gas between the confronting surfaces of the plates and the disc. Following shutdown of the shaft, the transducer elements are de-energized. A control circuit responds to incipient rubbing between the plate and either disc by altering the electrical input to the transducer elements to eliminate rubbing.

Langebrake, C.O.

1984-01-01T23:59:59.000Z

52

Optimizing New Dark Energy Experiments  

SciTech Connect

Next generation “Stage IV” dark energy experiments under design during this grant, and now under construction, will enable the determination of the properties of dark energy and dark matter to unprecedented precision using multiple complementary probes. The most pressing challenge in these experiments is the characterization and understanding of the systematic errors present within any given experimental configuration and the resulting impact on the accuracy of our constraints on dark energy physics. The DETF and the P5 panel in their reports recommended “Expanded support for ancillary measurements required for the long-term program and for projects that will improve our understanding and reduction of the dominant systematic measurement errors.” Looking forward to the next generation Stage IV experiments we have developed a program to address the most important potential systematic errors within these experiments. Using data from current facilities it has been feasible and timely to undertake a detailed investigation of the systematic errors. In this DOE grant we studied of the source and impact of the dominant systematic effects in dark energy measurements, and developed new analysis tools and techniques to minimize their impact. Progress under this grant is briefly reviewed in this technical report. This work was a necessary precursor to the coming generations of wide-deep probes of the nature of dark energy and dark matter. The research has already had an impact on improving the efficiencies of all Stage III and IV dark energy experiments.

Tyson, J. Anthony [University of California, Davis

2013-08-26T23:59:59.000Z

53

Renewable Energy Planning: Multiparametric Cost Optimization; Preprint  

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

Department of Energy Office of Energy Efficiency & Renewable Energy National Renewable Energy Laboratory Innovation for Our Energy Future Renewable Energy Planning: Multiparametric Cost Optimization Preprint Andy Walker National Renewable Energy Laboratory Presented at SOLAR 2008 - American Solar Energy Society (ASES) San Diego, California May 3-8, 2008 Conference Paper NREL/CP-670-42921 May 2008 NREL is operated by Midwest Research Institute ● Battelle Contract No. DE-AC36-99-GO10337 NOTICE The submitted manuscript has been offered by an employee of the Midwest Research Institute (MRI), a contractor of the US Government under Contract No. DE-AC36-99GO10337. Accordingly, the US Government and MRI retain a nonexclusive royalty-free license to publish or reproduce the published form of

54

Combined Thermal and Power Energy Management Optimization  

E-Print Network (OSTI)

, 'various types of prime movers (e.g. boilers, waste heat recovery, steam and gas turbines, etc.), and varying requirements for process heat and electrical power, particularly if bulk power is being dispatched to a utility grid. The ability...) maintaining the operating security of the energy supply system and equipment, and 3) optimization of energy use to meet given loads and constraints at the lowest costs. The thermal dispatch of power system boilers and turbines is the key function which...

Ahner, D. J.; Priestley, R. R.

55

Optimal Demand Response with Energy Storage Management  

E-Print Network (OSTI)

In this paper, we consider the problem of optimal demand response and energy storage management for a power consuming entity. The entity's objective is to find an optimal control policy for deciding how much load to consume, how much power to purchase from/sell to the power grid, and how to use the finite capacity energy storage device and renewable energy, to minimize his average cost, being the disutility due to load- shedding and cost for purchasing power. Due to the coupling effect of the finite size energy storage, such problems are challenging and are typically tackled using dynamic programming, which is often complex in computation and requires substantial statistical information of the system dynamics. We instead develop a low-complexity algorithm called Demand Response with Energy Storage Management (DR-ESM). DR-ESM does not require any statistical knowledge of the system dynamics, including the renewable energy and the power prices. It only requires the entity to solve a small convex optimization pr...

Huang, Longbo; Ramchandran, Kannan

2012-01-01T23:59:59.000Z

56

Energy Harvesting By Optimized Piezo Transduction Mechanism  

E-Print Network (OSTI)

We report generation of electrical energy from nonlinear mechanical noises available in the ambient environment using optimized piezo transduction mechanisms. Obtaining energy from an ambient vibration has been attractive for remotely installed standalone microsystems and devices. The mechanical noises in the ambient environment can be converted to electrical energy by a piezo strip based on the principle of piezoelectric effect. In this work, we have designed and developed a standalone energy harvesting module based on piezo transduction mechanisms. Using this designed module we harvested noise energy and stored electrical energy in a capacitor. Using NI-PXI workstation with a LabVIEW programming, the output voltage of the piezo strip and voltage of the capacitor were measured and monitored. In this paper we discuss about the design, development, implementation, performance and characteristics of the energy harvesting module.

Boban, Bijo; Satheesh, U; Devaprakasam, D

2014-01-01T23:59:59.000Z

57

Rotary kiln seal  

SciTech Connect

A rotary seal used to prevent the escape of contaminates from a rotating kiln incinerator. The rotating seal combines a rotating disc plate which is attached to the rotating kiln shell and four sets of non-rotating carbon seal bars housed in a primary and secondary housing and which rub on the sides of the disc. A seal air system is used to create a positive pressure in a chamber between the primary and secondary seals to create a positive air flow into the contaminated gas chamber. The seal air system also employs an air inlet located between the secondary and tertiary seals to further insure that no contaminates pass the seal and enter the external environment and to provide makeup air for the air which flows into the contaminated gas chamber. The pressure exerted by the seal bars on the rotating disc is controlled by means of a preload spring. The seal is capable of operating in a thermally changing environment where the both radial expansion and axial movement of the rotating kiln do not result in the failure of the seal.

Drexler, Robert L. (Idaho Falls, ID)

1992-01-01T23:59:59.000Z

58

Cognitive Energy Value Chain: Leveraging Big Data to Optimize Energy  

E-Print Network (OSTI)

20-23, 2014 - 8 -CEO Cognitive Energy Optimization Confidential Transforming The ‘Enterprise’ Cognitive Business Automation – Holistic Business Engine – Integrating the Enterprise – Business & Global Markets – Process Manufacturing Operations Big... FinancialMarket Big Data AnalyticsUniversal Engine providing Full Alignment IoT Web & Cloud Risk Mitigation ESL-IE-14-05-44 Proceedings of the Thrity-Sixth Industrial Energy Technology Conference New Orleans, LA. May 20-23, 2014 - 9 -CEO Cognitive Energy...

Birg, G.; Reitmeier, T.

2014-01-01T23:59:59.000Z

59

Nuclear energy density optimization: Shell structure  

E-Print Network (OSTI)

Nuclear density functional theory is the only microscopical theory that can be applied throughout the entire nuclear landscape. Its key ingredient is the energy density functional. In this work, we propose a new parameterization UNEDF2 of the Skyrme energy density functional. The functional optimization is carried out using the POUNDerS optimization algorithm within the framework of the Skyrme Hartree-Fock-Bogoliubov theory. Compared to the previous parameterization UNEDF1, restrictions on the tensor term of the energy density have been lifted, yielding a very general form of the energy density functional up to second order in derivatives of the one-body density matrix. In order to impose constraints on all the parameters of the functional, selected data on single-particle splittings in spherical doubly-magic nuclei have been included into the experimental dataset. The agreement with both bulk and spectroscopic nuclear properties achieved by the resulting UNEDF2 parameterization is comparable with UNEDF1. While there is a small improvement on single-particle spectra and binding energies of closed shell nuclei, the reproduction of fission barriers and fission isomer excitation energies has degraded. As compared to previous UNEDF parameterizations, the parameter confidence interval for UNEDF2 is narrower. In particular, our results overlap well with those obtained in previous systematic studies of the spin-orbit and tensor terms. UNEDF2 can be viewed as an all-around Skyrme EDF that performs reasonably well for both global nuclear properties and shell structure. However, after adding new data aiming to better constrain the nuclear functional, its quality has improved only marginally. These results suggest that the standard Skyrme energy density has reached its limits and significant changes to the form of the functional are needed.

M. Kortelainen; J. McDonnell; W. Nazarewicz; E. Olsen; P. -G. Reinhard; J. Sarich; N. Schunck; S. M. Wild; D. Davesne; J. Erler; A. Pastore

2013-12-06T23:59:59.000Z

60

Regenerative rotary displacer Stirling engine  

SciTech Connect

A few rotary displacer Stirling engines in which the displacer has one gas pocket space at one side and rotates in a main enclosed cylinder, which is heated from one side and cooled from opposite side without any regenerator, have been studied for some time by the authors. The authors tried to improve this engine by equipping it with a regenerator, because without a regenerator, pressure oscillation and efficiency are too small. Here, several types of regenerative rotary displacer piston Stirling engines are proposed. One is the contra-rotating tandem two disc type displacer engine using axial heat conduction through side walls or by heat pipes and another is a single disc type with circulating fluid regenerator or heat pipes. Stirling engines of this new rotary displacer type are thought to attain high speed. Here, experimental results of the original rotary displacer Stirling engine without a regenerator, and one contra-rotating tandem displacer engine with side wall regenerator by axial heat conduction are reported accompanied with a discussion of the results.

Isshiki, Naotsugu; Watanabe, Hiroichi [Nihon Univ. Tokyo (Japan); Raggi, L. [Waseda Univ., Tokyo (Japan); Isshiki, Seita; Hirata, Koichi

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Actes JFPC 2012 Optimal Allocation of Renewable Energy Parks  

E-Print Network (OSTI)

Actes JFPC 2012 Optimal Allocation of Renewable Energy Parks: A Two-stage Optimization Model-economical study of renewable energy on the other hand, investigates gradual implantation of Renewable Energy (RE of energy demand, available resources, anticipated renewable engineering cost re- ductions [13]. However

Paris-Sud XI, Université de

62

A Smart Energy System: Distributed Resource Management, Control and Optimization  

E-Print Network (OSTI)

A Smart Energy System: Distributed Resource Management, Control and Optimization Yong Ding, Student of distributed energy resource and consumption management, which proposes to design a networked and embedded platform for realizing a dynamic energy mix and optimizing the energy consumption dy- namically. Based

Beigl, Michael

63

A Ceramic Waste Heat Recovery System on a Rotary Forge Furnace: An Installation and Operating History  

E-Print Network (OSTI)

heavy duty high temperature ceramic tube recuperator and five high temperature recirculating burners. The energy conservation system was retrofitted onto a rotary hearth furnace with an inside diameter of 11' 5'' (3.5m) and an available hearth area...

Young, S. B.; Campbell, T. E.; Worstell, T. M.

1981-01-01T23:59:59.000Z

64

Application Level Optimizations for Energy Efficiency and Thermal Stability  

E-Print Network (OSTI)

, a method optimizing energy efficiency by clustering the work- load in a few resources, temporally can help achieve higher energy efficiency and better thermal behavior. 2. METHODS A fundamentalApplication Level Optimizations for Energy Efficiency and Thermal Stability Md. Ashfaquzzaman Khan

Coskun, Ayse

65

Optimization of Energy and Water Consumption in Cornbased Ethanol Plants  

E-Print Network (OSTI)

1 Optimization of Energy and Water Consumption in Corn­based Ethanol Plants Elvis Ahmetovi). First, we review the major alternatives in the optimization of energy consumption and its impact for the water streams. We show that minimizing energy consumption leads to process water networks with minimum

Grossmann, Ignacio E.

66

Finite-Horizon Optimal Transmission Policies for Energy Harvesting Sensors  

E-Print Network (OSTI)

Finite-Horizon Optimal Transmission Policies for Energy Harvesting Sensors Rahul Vaze School: krishnaj@ee.iitm.ac.in Abstract--In this paper, we derive optimal transmission poli- cies for energy harvesting sensors to maximize the utility obtained over a finite horizon. First, we consider a single energy

Jagannathan, Krishna

67

Optimizing New Dark Energy Experiments - Final Scientific Report  

SciTech Connect

This is the final scientific report for the University of Pittsburgh portion of the collaborative grant, 'Optimizing New Dark Energy Experiments'

Jeffrey A. Newman

2012-06-08T23:59:59.000Z

68

Optimal Energy Management of a PHEV Using Trip Information  

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

NAVTEQ (Map data) Argonne's Transportation Research and Analysis Computing Center (TRACC) (traffic modeling) 2 2012 DOE VT Merit Review - VSS068 - Optimal Energy...

69

Rotary mode system initial instrument calibration  

SciTech Connect

The attached report contains the vendor calibration procedures used for the initial instrument calibration of the rotary core sampling equipment. The procedures are from approved vendor information files.

Johns, B.R.

1994-10-01T23:59:59.000Z

70

Biotrans: Cost Optimization Model | Open Energy Information  

Open Energy Info (EERE)

Biotrans: Cost Optimization Model Biotrans: Cost Optimization Model Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Biotrans: Cost Optimization Model Focus Area: Ethanol Topics: Market Analysis Website: www.ecn.nl/units/ps/models-and-tools/biotrans/ Equivalent URI: cleanenergysolutions.org/content/biotrans-cost-optimization-model,http Language: English Policies: Deployment Programs DeploymentPrograms: Demonstration & Implementation BIOTRANS optimizes the biofuel supply chain allocation by finding the least-cost configuration of resources and trade to meet a specified biofuel demand in the European transportation sector. The user can constrain the optimization by inputting a number of economic and technological assumptions for a specific target year. References Retrieved from

71

Optimal Green Energy Utilization in MIMO Systems with Hybrid Energy Supplies  

E-Print Network (OSTI)

1 Optimal Green Energy Utilization in MIMO Systems with Hybrid Energy Supplies Congshi Hu, Jie Gong, it is feasible for BSs to be powered by green energy, such as solar energy and wind energy. For instance link with hybrid energy harvesting and grid power supply. We optimize the power allocation to minimize

72

Optimal mixing and optimal stirring for fixed energy, fixed power or fixed palenstrophy flows  

E-Print Network (OSTI)

Optimal mixing and optimal stirring for fixed energy, fixed power or fixed palenstrophy flows-time perfect mixing with a finite energy constraint on the stirring flow. On the other hand, using techniques, University of Michigan, Ann Arbor, MI 48109 (Dated: 31 March 2012) We consider passive scalar mixing

Novikov, Alexei

73

Power Control and Optimization of Photovoltaic and Wind Energy Conversion Systems /  

E-Print Network (OSTI)

and Optimization of Photovoltaic and Wind Energy Conversionand Optimization of Photovoltaic and Wind Energy Conversionpower of Photovoltaic modules and Wind Energy Conversion

Ghaffari, Azad

2013-01-01T23:59:59.000Z

74

Optimal Control of Residential Energy Storage Under Price Fluctuations  

E-Print Network (OSTI)

Optimal Control of Residential Energy Storage Under Price Fluctuations Peter van de ven Department habits. We formulate the problem of minimizing the cost of energy storage purchases subject to both user- gramming, energy storage, threshold policy. I. INTRODUCTION Wholesale energy prices exhibit significant

75

MULTIPARAMETER OPTIMIZATION STUDIES ON GEOTHERMAL ENERGY CYCLES  

E-Print Network (OSTI)

of Practical Cycles for Geothermal Power Plants." GeneralDesign and Optimize Geothermal Power Cycles." Presented atof Practical Cycles for Geothermal Power Plants." General

Pope, W.L.

2011-01-01T23:59:59.000Z

76

Optimize Parallel Pumping Systems | Department of Energy  

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

Pumping Systems This tip sheet describes how to optimize the performance of multiple pumps operating continuously as part of a parallel pumping system. PUMPING SYSTEMS TIP SHEET...

77

MULTIPARAMETER OPTIMIZATION STUDIES ON GEOTHERMAL ENERGY CYCLES  

E-Print Network (OSTI)

and J. W. Tester, Geothermal Energy as a Source of Electricat the Susanville Geothermal Energy Converence, July 1976.for Recovery of Energy from Geothermal Hot Brine Deposits."

Pope, W.L.

2011-01-01T23:59:59.000Z

78

MULTIPARAMETER OPTIMIZATION STUDIES ON GEOTHERMAL ENERGY CYCLES  

E-Print Network (OSTI)

Division of Geothermal Energy (ERDA-DGE) to do energy costEnergy Cost Resource Utilization Efficiency-Resource Temp- erature Surface for GeothermalEnergy Cost Resource Utilization Efficiency-Resource Temp- erature Surface for Geothermal

Pope, W.L.

2011-01-01T23:59:59.000Z

79

Investigation into economical desalination using optimized hybrid renewable energy system  

Science Journals Connector (OSTI)

This paper investigates the use of hybrid renewable energy systems (HRESs) in Reverse Osmosis (RO) desalination. Mathematical model aided with a newly developed computer program for sizing (HRES) components. The study evaluates the individual and total expenses needed as well as the amount of excess renewable energy production. An optimization program was developed to select the best (HRES) combination that can produce desalinated water in a relatively economic cost. It demonstrates an investigated optimization approach based on minimization of the excess energy. It presents the impact of the considered optimization technique on the unit cost of energy and consequently unit cost of desalinated water. Unit production costs of both energy and desalinated water for two existing small and medium (RO) plants powered with conventional electricity grid are compared with the generated electricity from optimized (HRES). Cost sensitivity evaluation for (HRES) components to estimate the most economical price of (HRES) for desalination is presented.

A. Hossam-Eldin; A.M. El-Nashar; A. Ismaiel

2012-01-01T23:59:59.000Z

80

Optimizing rotational acceleration curves for minimum energy use in electric  

E-Print Network (OSTI)

Optimizing rotational acceleration curves for minimum energy use in electric motors. 12/15/06 Fall the optimal efficiency of a motor for any input values of motor constants, distance, or time. In every of the inspiration to find which rotational acceleration curve for the used motors would be most efficient. We really

Ruina, Andy L.

Note: This page contains sample records for the topic "optimized rotary energy" 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

ENERGY PAYBACK OPTIMIZATION OF THERMOELECTRIC POWER GENERATOR SYSTEMS  

E-Print Network (OSTI)

and the thermoelectric module should be performed. Active cooling and the design of the heat sink are customized to findENERGY PAYBACK OPTIMIZATION OF THERMOELECTRIC POWER GENERATOR SYSTEMS Kazuaki Yazawa Dept model for optimizing thermoelectric power generation system is developed and utilized for parametric

82

Minimizing Energy Consumption in Body Sensor Networks via Convex Optimization  

E-Print Network (OSTI)

Minimizing Energy Consumption in Body Sensor Networks via Convex Optimization Sidharth Nabar energy consumption while limiting the latency in data transfer. In this paper, we focus on polling energy consumption and latency. We show that this problem can be posed as a geometric program, which

Poovendran, Radha

83

Optimizing Throughput and Energy in Online Deadline Scheduling  

E-Print Network (OSTI)

of all jobs. An optimal schedule is expected to maximize the throughput, and furthermore, its energy a scheduling algorithm, one has to face the dilemma of selecting more jobs and being conservative in energy jobs; O(1)-competitive online algorithms with respect to energy usage have been known [Yao et al. 1995

Wong, Prudence W.H.

84

Optimizing Communication Energy Consumption in Perpetual Wireless Nanosensor Networks  

E-Print Network (OSTI)

Optimizing Communication Energy Consumption in Perpetual Wireless Nanosensor Networks Shahram}@cs.odu.edu Abstract--This paper investigates the effect of various param- eters of energy consumption. Finding the optimum combination of parameters to minimize energy consumption while satisfying the Qo

Weigle, Michele

85

CROSS-LAYER OPTIMIZATION IN ENERGY CONSTRAINED NETWORKS  

E-Print Network (OSTI)

solved. The solution tells us how to optimally route the traffic to minimize the total energy consumption battery. Under this hard constraint, reducing energy consumption is the most important design-range applications, bursty transmissions are preferred to minimize total energy consumption. We then consider

Cui, Shuguang "Robert"

86

Circuit Area Optimization in Energy Temporal Sparse Scenarios for  

E-Print Network (OSTI)

Circuit Area Optimization in Energy Temporal Sparse Scenarios for Multiple Harvester Powered.alarcon@upc.edu Abstract--Multi-source energy harvesters are gaining interest as a robust alternative to power wireless sensors, since the sensor node can maintain its operation regardless of the fact that one of its energy

PolitĂšcnica de Catalunya, Universitat

87

Enclosed rotary disc air pulser  

DOE Patents (OSTI)

An enclosed rotary disc air pulser for use with a solvent extraction pulse olumn includes a housing having inlet, exhaust and pulse leg ports, a shaft mounted in the housing and adapted for axial rotation therein, first and second disc members secured to the shaft within the housing in spaced relation to each other to define a chamber therebetween, the chamber being in communication with the pulse leg port, the first disc member located adjacent the inlet port, the second disc member being located adjacent the exhaust port, each disc member having a milled out portion, the disc members positioned on the shaft so that as the shaft rotates, the milled out portions permit alternative cyclical communication between the inlet port and the chamber and the exhaust port and the chamber.

Olson, A. L. (Idaho Falls, ID); Batcheller, Tom A. (Idaho Falls, ID); Rindfleisch, J. A. (Arco, ID); Morgan, John M. (Arco, ID)

1989-01-01T23:59:59.000Z

88

REopt: A Platform for Energy System Integration and Optimization: Preprint  

SciTech Connect

REopt is NREL's energy planning platform offering concurrent, multi-technology integration and optimization capabilities to help clients meet their cost savings and energy performance goals. The REopt platform provides techno-economic decision-support analysis throughout the energy planning process, from agency-level screening and macro planning to project development to energy asset operation. REopt employs an integrated approach to optimizing a site?s energy costs by considering electricity and thermal consumption, resource availability, complex tariff structures including time-of-use, demand and sell-back rates, incentives, net-metering, and interconnection limits. Formulated as a mixed integer linear program, REopt recommends an optimally-sized mix of conventional and renewable energy, and energy storage technologies; estimates the net present value associated with implementing those technologies; and provides the cost-optimal dispatch strategy for operating them at maximum economic efficiency. The REopt platform can be customized to address a variety of energy optimization scenarios including policy, microgrid, and operational energy applications. This paper presents the REopt techno-economic model along with two examples of recently completed analysis projects.

Simpkins, T.; Cutler, D.; Anderson, K.; Olis, D.; Elgqvist, E.; Callahan, M.; Walker, A.

2014-08-01T23:59:59.000Z

89

Online Modeling in the Process Industry for Energy Optimization  

E-Print Network (OSTI)

"This paper discusses how steady state models are being used in the process industry to perform online energy optimization of steam and electrical systems. It presents process demands commonly found in the processing industry in terms of steam...

Alexander, J.

90

Energy Optimal Routing in Radio Networks Using Geometric Data Structures ?  

E-Print Network (OSTI)

batteries or power from solar panels, a prime optimization criterion is the energy consumption. We model and Emerging Technologies programme of the EU under contract number IST­1999­14186 (ALCOM­FT). #12; In addition

Schmitt, Peter H.

91

MULTIPARAMETER OPTIMIZATION STUDIES ON GEOTHERMAL ENERGY CYCLES  

E-Print Network (OSTI)

and J. W. Tester, Geothermal Energy as a Source of Electricat the Susanville Geothermal Energy Converence, July 1976.and J. W. Tester, Geothermal Energy as a Source of Electric

Pope, W.L.

2011-01-01T23:59:59.000Z

92

Realistic Industrial Scale Energy Optimization: Part I - Organizing and Executing Energy Conservation Projects  

E-Print Network (OSTI)

With increased cost and reduced availability of energy, plant managers are reviewing their options to optimize energy utilization to reduce operating costs. This paper deals with the organization and execution of an energy conservation program which...

Jones, W. T.

1982-01-01T23:59:59.000Z

93

Building Distributed Energy Performance Optimization for China - a Regional  

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

Distributed Energy Performance Optimization for China - a Regional Distributed Energy Performance Optimization for China - a Regional Analysis of Building Energy Costs and CO2 Emissions Title Building Distributed Energy Performance Optimization for China - a Regional Analysis of Building Energy Costs and CO2 Emissions Publication Type Conference Proceedings Refereed Designation Refereed LBNL Report Number LBNL-81770 Year of Publication 2012 Authors Feng, Wei, Nan Zhou, Chris Marnay, Michael Stadler, and Judy Lai Conference Name 2012 ACEEE Summer Study on Energy Efficiency in Buildings, August 12-17, 2012 Date Published 08/2012 Conference Location Pacific Grove, California ISBN Number 0-918249-XX-X Notes LBNL - XXXXX Refereed Designation Refereed Attachment Size PDF 5 MB Google Scholar BibTex RIS RTF XML Alternate URL: http://eetd.lbl.gov/node/52998

94

Plant Optimization Technologies | Department of Energy  

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

Science & Innovation » Clean Coal » Crosscutting Research » Science & Innovation » Clean Coal » Crosscutting Research » Plant Optimization Technologies Plant Optimization Technologies The Plant Optimization Technologies Program is a diverse, scientifically oriented research and development program that addresses issues affecting the way coal is used. The program's primary emphasis is to support the development of advanced technologies that use coal with near-zero emissions. To provide this support, the program identifies scientific and technological needs and develops a basic understanding of the underlying chemical and physical processes that, unless resolved, could create a technological barrier to these new coal-based concepts. The program serves as a bridge between basic science and the fabrication and testing of new technologies. Currently researchers supported by this

95

Definition: Customer Electricity Use Optimization | Open Energy Information  

Open Energy Info (EERE)

Customer Electricity Use Optimization Customer Electricity Use Optimization Jump to: navigation, search Dictionary.png Customer Electricity Use Optimization Customer electricity use optimization is possible if customers are provided with information to make educated decisions about their electricity use. Customers could be able to optimize toward multiple goals such as cost, reliability, convenience, and environmental impact.[1] Also Known As Energy conservation Related Terms electricity generation References ↑ SmartGrid.gov 'Description of Functions' An LikeLike UnlikeLike You like this.Sign Up to see what your friends like. inline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Customer_Electricity_Use_Optimization&oldid=480282" Categories: Definitions

96

oil-emulsion (rotary) drilling fluid  

Science Journals Connector (OSTI)

oil-emulsion (rotary) drilling fluid, oil-emulsion fluid [Used where low fluid-loss, very thin cake, and good lubrication of the drill pipe are of primary importance, such as in directional drilling ...

2014-08-01T23:59:59.000Z

97

oil-base(d) (rotary) drilling fluid  

Science Journals Connector (OSTI)

oil-base(d) (rotary) drilling fluid, oil-base(d) fluid [Used primarily for drilling-in or recomputing wells in formations subject ... with low formation pressures. See remark under “drilling fluid”] ...

2014-08-01T23:59:59.000Z

98

Optimal Siting and Sizing of Distributed Energy Resources  

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

Optimal Siting and Sizing of Distributed Energy Resources Optimal Siting and Sizing of Distributed Energy Resources Speaker(s): Johan Driesen Date: February 15, 2007 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Chris Marnay Ongoing changes in the operation of distribution grids call for a new way to plan grid modifications. This presentation gives an overview of possible methods of long-term planning for the deployment of Distributed Energy Resources (distributed generation, storage and controllable loads) in a given grid. The placement and sizing of the units have to be considered, making this a complex optimization problem with discrete and continuous variables. In the optimization problem, multiple objectives are often conflicting, e.g. minimal grid losses, maximal use of the resources and voltage stability. An evolutionary algorithm (genetic algorithms) is used

99

Stochastic Optimization in Energy ISO New England  

E-Print Network (OSTI)

: » "Stochastic" » Online/offline optimization » Policy » Lags » Transition function » Lookahead model/policy," but in the setting of sequential problems, each is actually a class of policy (or two) Slide 4 #12;© 2010 Warren B of technology and the price of commodities. In recent years, the growing presence of wind and solar is putting

Powell, Warren B.

100

Cooperative and Non-Cooperative house energy optimization in a Smart Grid perspective  

Science Journals Connector (OSTI)

Energy demand management for residential users is a promising research area within the Smart Grid revolution. The whole energy generation and distribution system performance can indeed be improved by optimizing the house energy management while still ... Keywords: energy consumption, noncooperative house energy optimization, smart grid perspective, energy demand management, energy generation, distribution system performance, optimal planning

A. Barbato; A. Capone; G. Carello; M. Delfanti; M. Merlo; A. Zaminga

2011-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Conserve Energy by Optimizing Air Compressor System  

E-Print Network (OSTI)

, the plant would have to substantially increase the product shipments. This is not always possible; however, conserving energy is nearly always possible. How should one begin an energy conservation program within a major Industrial Plant? The same as any...

Williams, V. A.

102

Thermodynamic Optimization in Ocean Thermal Energy Conversion  

Science Journals Connector (OSTI)

As alternative energy sources to oil and uranium, we can consider well known alternative sources such as solar power, geothermal power and wind power. However when we consider the 21st century energy sources, ocean

Y. Ikegami; H. Uehara

1999-01-01T23:59:59.000Z

103

Optimal investment and scheduling of distributed energy resources with  

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

investment and scheduling of distributed energy resources with investment and scheduling of distributed energy resources with uncertainty in electric vehicles driving schedules Title Optimal investment and scheduling of distributed energy resources with uncertainty in electric vehicles driving schedules Publication Type Journal Article LBNL Report Number LBNL-6471E Year of Publication 2013 Authors Cardoso, Gonçalo, Michael Stadler, Mohammad Bozchalui, Ratnesh Sharma, Chris Marnay, Ana Barbosa-Póvoa, and Paulo Ferrão Journal Energy Date Published 10/2013 Abstract The large scale penetration of electric vehicles (EVs) will introduce technical challenges to the distribution grid, but also carries the potential for vehicle-to-grid services. Namely, if available in large enough numbers, EVs can be used as a distributed energy resource (DER) and their presence can influence optimal DER investment and scheduling decisions in microgrids. In this work, a novel EV fleet aggregator model is introduced in a stochastic formulation of DER-CAM [1], an optimization tool used to address DER investment and scheduling problems. This is used to assess the impact of EV interconnections on optimal DER solutions considering uncertainty in EV driving schedules. Optimization results indicate that EVs can have a significant impact on DER investments, particularly if considering short payback periods. Furthermore, results suggest that uncertainty in driving schedules carries little significance to total energy costs, which is corroborated by results obtained using the stochastic formulation of the problem.

104

Robust Energy Cost Optimization of Water Distribution System with ...  

E-Print Network (OSTI)

Energy cost optimization of a water-supply network is a very important ..... ci(t) is the cost of pumping in a unit of water from source # i in period t (in ... of the pump, ? is an appropriate constant factor, and ?(t) is the price of energy (H is measured.

2011-02-21T23:59:59.000Z

105

Sensor Placement + Optimization Software (SPOT) | Open Energy Information  

Open Energy Info (EERE)

Sensor Placement + Optimization Software (SPOT) Sensor Placement + Optimization Software (SPOT) Jump to: navigation, search Tool Summary Name: SPOT Agency/Company /Organization: Architectural Energy Corporation Sector: Energy Focus Area: Buildings, Energy Efficiency Topics: Technology characterizations Resource Type: Software/modeling tools User Interface: Spreadsheet Website: www.archenergy.com/SPOT/ Cost: Free Language: English References: http://www.archenergy.com/SPOT/ SPOT(tm) is intended to assist a designer in quantifying the existing or intended electric lighting and annual daylighting characteristics of a given space and to help establish the optimal photosensor placement for the space relative to annual performance and annual energy savings. The software was developed with classroom daylighting in mind, but can be used

106

Nuclear energy density optimization: Shell structure  

Science Journals Connector (OSTI)

Background: Nuclear density functional theory is the only microscopical theory that can be applied throughout the entire nuclear landscape. Its key ingredient is the energy density functional.

M. Kortelainen; J. McDonnell; W. Nazarewicz; E. Olsen; P.-G. Reinhard; J. Sarich; N. Schunck; S. M. Wild; D. Davesne; J. Erler; A. Pastore

2014-05-15T23:59:59.000Z

107

Building Energy Optimization (BEopt) Software | Department of...  

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

of BEopt-CA (Ex) that supports balanced integration of energy efficiency, demand response, and photovoltaics in the residential retrofit market. To help meet Building...

108

HVAC Optimized Heat Exchangers Research Project | Department of Energy  

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

Optimized Heat Exchangers Research Optimized Heat Exchangers Research Project HVAC Optimized Heat Exchangers Research Project The U.S. Department of Energy is currently conducting research into heating, ventilation, and air conditioning (HVAC) optimized heat exchangers. The information generated in this study will demonstrate performance improvements that can be achieved through optimization of refrigerant circuitry for non-uniform inlet air distribution. The tubing circuitry on fin-tube heat exchangers used in residential space-conditioning systems is typically designed assuming uniform airflow through the finned passageways. However, the air flow in installed systems is highly non-uniform, resulting in mismatched refrigerant-air heat transfer that reduces the capacity of the heat exchanger and efficiency of

109

Annual Energy Consumption Analysis and Energy Optimization of a Solar-Assisted Heating Swimming Pool  

E-Print Network (OSTI)

This paper is concerned with the energy efficiency calculations and optimization for an indoor solar-assisted heating swimming pool in GuangZhou. The heating energy requirements for maintaining the pool constant temperature were investigated, which...

Zuo, Z.; Hu, W.; Meng, O.

2006-01-01T23:59:59.000Z

110

Simulation Models to Optimize the Energy Consumption of Buildings  

E-Print Network (OSTI)

Page 1 of paper submitted to ICEBO 2008 Berlin SIMULATION MODELS TO OPTIMIZE THE ENERGY CONSUMPTION OF BUILDINGS Sebastian Burhenne Fraunhofer-Institute for Solar Energy Systems Freiburg, Germany Dirk Jacob Fraunhofer...-Institute for Solar Energy Systems Freiburg, Germany ABSTRACT In practice, building operation systems are only adjusted during commissioning. This is done manually and leads to failure-free but often inefficient operation. This work deals...

Burhenne, S.; Jacob, D.

111

Scalable Stochastic Optimization of Complex Energy Systems  

E-Print Network (OSTI)

Illinois power grid and real-time energy market. Strong scal- ing efficiency of 96% is obtained on 32 racks (131,072 cores) of the “Intrepid” Blue Gene/P system at ...

2011-04-18T23:59:59.000Z

112

Central Networks Low Carbon Hub Optimizing renewable energy resources in  

Open Energy Info (EERE)

Networks Low Carbon Hub Optimizing renewable energy resources in Networks Low Carbon Hub Optimizing renewable energy resources in Lincolnshire (Smart Grid Project) Jump to: navigation, search Project Name Central Networks Low Carbon Hub Optimizing renewable energy resources in Lincolnshire Country United Kingdom Headquarters Location Lincolnshire, United Kingdom Coordinates 53.21788°, -0.19997° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":53.21788,"lon":-0.19997,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

113

Topology optimization of piezoelectric energy harvesting devices considering static and harmonic dynamic loads  

Science Journals Connector (OSTI)

A topology optimization (TO) procedure is developed to design optimal layouts for piezoelectric energy harvesting devices (EHDs) by considering the effect of static and harmonic dynamic mechanical loads. To determine the optimal material distributions ... Keywords: Energy harvesting device, Harmonic load, Piezoelectric material with penalization, Static load, Structural optimization, Topology optimization

Jin Yee Noh; Gil Ho Yoon

2012-11-01T23:59:59.000Z

114

Rotary-linear axes for high speed machining  

E-Print Network (OSTI)

This thesis presents the design, analysis, fabrication, and control of a rotary-linear axis; this axis is a key subsystem for high speed, 5-axis machine tools intended for fabricating centimeter-scale parts. The rotary-linear ...

Liebman, Michael Kevin, 1974-

2001-01-01T23:59:59.000Z

115

Rotary Shaft Power Extraction From a Free-Piston Engine  

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

A mechanical rectifier using modern high-performance mechanical diodes can improve direct rotary shaft power output.

116

OpenEI:Projects/Search Engine Optimization | Open Energy Information  

Open Energy Info (EERE)

Search Engine Optimization Search Engine Optimization Jump to: navigation, search This page is used to coordinate the OpenEI project's plans to apply Search Engine Optimization (SEO) techniques to boost the site's traffic and impact. Contents 1 Tasks 2 Targeted Keywords 3 Resources 4 Participants Tasks Optimize pages' TITLE and H1 elements Include keywords (like "energy" in TITLE and H1 elements whenever possible (and appropriate) Usually accomplished via the "DISPLAYTITLE" magic word Include appropriate DESCRIPTION and KEYWORDS meta tags in HTML Usually accomplished via Template:PageMeta Include specific and descriptive ALT attributes in our image tags Make the ALT attribute as specific as possible (e.g. "NREL Logo" is better than just "Logo") Among other things, this should lead to more traffic via Google

117

An Optimal Energy Allocation Algorithm for Energy Harvesting Wireless Sensor Networks  

E-Print Network (OSTI)

. Traditionally, a sensor node is mainly powered by a non-rechargeable battery, which has a limited energy storage by enabling the wireless sensor nodes to replenish energy from ambient sources, such as solar, windAn Optimal Energy Allocation Algorithm for Energy Harvesting Wireless Sensor Networks Shaobo Mao

Wong, Vincent

118

Power Control and Optimization of Photovoltaic and Wind Energy Conversion Systems /  

E-Print Network (OSTI)

77 5.2 Wind Energy Conversion System . . . . .Optimization and Control in Wind Energy Conversion SystemsAC matrix con- verter for wind energy conversion system,” in

Ghaffari, Azad

2013-01-01T23:59:59.000Z

119

Demonstration of Integrated Optimization Software at the Baldwin Energy Complex  

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

Clean Coal Power Clean Coal Power Initiative (CCPI) contacts Brad tomer Director Office of Major Demonstrations National Energy Technology Laboratory 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507-0880 304-285-4692 brad.tomer@netl.doe.gov George Pukanic Project Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940 412-386-6085 george.pukanic@netl.doe.gov PaRtIcIPant NeuCo, Inc., Boston, MA aDDItIonaL tEaM MEMBERs Dynegy Midwest Generation (host) Demonstration of integrateD optimization software at the BalDwin energy Complex Project Description NeuCo, Inc., of Boston, Massachusetts, has designed and demonstrated new integrated on-line optimization systems at Dynegy Midwest Generation's Baldwin Energy

120

Optimization of Power-Intensive Energy Systems with Carbon Capture  

Science Journals Connector (OSTI)

Optimization of Power-Intensive Energy Systems with Carbon Capture ... Three concepts for capturing CO2 from natural gas-fired combined gas/steam turbine power plants are evaluated and compared in this paper: (A) sepn. of CO2 from exhaust gas coming from a std. ...

Xuesong Zheng; Jin-Kuk Kim

2011-09-07T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Optimization of Energy Detector Receivers for UWB Systems  

E-Print Network (OSTI)

desired characteristics like the increased potential of achieving high data rates, low transmission powerOptimization of Energy Detector Receivers for UWB Systems Mustafa E. Sžahin, Ismail Gšuvencž, and Hšuseyin Arslan Electrical Engineering Department, University of South Florida 4202 E. Fowler Avenue, ENB-118

Arslan, HĂŒseyin

122

Towards Optimizing Energy Costs of Algorithms for Shared Memory Architectures  

E-Print Network (OSTI)

Towards Optimizing Energy Costs of Algorithms for Shared Memory Architectures Vijay Anand Korthikanti Department of Computer Science University of Illinois Urbana-Champaign vkortho2@illinois.edu Gul Agha Department of Computer Science University of Illinois Urbana-Champaign agha@illinois.edu ABSTRACT

Marchal, Loris

123

Multiobjective Optimization of Renewable Energy Penetration Rate in Power Systems  

Science Journals Connector (OSTI)

Abstract Nowadays, multi-source systems based on renewable energy technologies become the key to a sustainable energy supply infrastructure against the rising cost and the pollutant nature of fossil primary energy used in conventional power plant. However, the cost of renewable energy technologies and the reliability of a multi-sources generation system are generally conflicting with each other. This paper presents a multiobjective formulation to allow optimizing simultaneously both the annualized renewable energy cost the system reliability defined as the renewable energy - load disparity (RELD). This later takes into account the lack of energy as well as the exceed weighted by a penalty factor. The optimization is reach by acting on the penetration rate of each type of renewable generation technologies in order to satisfy a certain load curve. In order to solve this problem, this work suggests to use the fast and elitist multiobjective genetic algorithm: NSGA-II. A case study shows that the use of diversified resources allows to handle the RELD and to decrease the exceed renewable energy (RERE) and load energy notsupplied (LENS).

Hasnae Bilil; Ghassane Aniba; Mohamed Maaroufi

2014-01-01T23:59:59.000Z

124

Optimal energy management strategy for hybrid electric tracked vehicles  

Science Journals Connector (OSTI)

A Dynamic Programming (DP) technique is used to design an optimal power distribution energy management strategy between the diesel engine-generator and traction battery for a hybrid electric tracked vehicle. A mathematical model incorporating the vehicle's dynamics, driving schedule data from the field tests and powertrain is developed. A control strategy based on the passive power covering concept is initially designed. An optimal one is then designed through the DP approach and DP-based battery sizing is properly adopted. The performance of the new control strategy is tested through simulations. Significant fuel economy improvement is observed.

Yuan Zou; Feng-Chun Sun; Cheng-Ning Zhang; Jun-Qiu Li

2012-01-01T23:59:59.000Z

125

Energy cost and optimal entanglement production in harmonic chains  

Science Journals Connector (OSTI)

We investigate nonequilibrium entanglement generation in a chain of harmonic oscillators with time-dependent linear coupling. We use optimal control theory to determine the coupling modulation that leads to maximum logarithmic negativity for a pair of opposite oscillators, and show that it corresponds to a synchronization of the eigenmodes of the chain. We further analytically relate the maximum attainable entanglement to the irreversible work done to produce it. We find that the energy cost of optimal entanglement production scales exponentially with the amount of entanglement.

Fernando Galve and Eric Lutz

2009-03-23T23:59:59.000Z

126

Optimization Model for Energy Planning with CO2 Emission Considerations  

Science Journals Connector (OSTI)

This paper considers the problem of reducing CO2 emissions from a power grid consisting of a variety of power-generating plants:? coal, natural gas, nuclear, hydroelectric, and alternative energy. ... Approximately 28.5% of OPG electricity is produced through the combustion of fossil fuels, 27% through hydroelectricity, and 44% through nuclear energy, and the remaining 0.5% comes from renewable or other energy sources, such as wind turbines. ... A sensitivity analysis was also performed to evaluate the impact of natural gas prices, coal prices, and retrofit costs on the optimal configuration of the OPG fleet of electricity-generating stations. ...

Haslenda Hashim; Peter Douglas; Ali Elkamel; Eric Croiset

2005-01-12T23:59:59.000Z

127

CX-004104: Categorical Exclusion Determination | Department of Energy  

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

4: Categorical Exclusion Determination 4: Categorical Exclusion Determination CX-004104: Categorical Exclusion Determination State Energy Program Conductor Optimized Rotary Energy Mega-Watt Scale Direct Wind Generator CX(s) Applied: A9, B5.1 Date: 09/29/2010 Location(s): Ronan, Montana Office(s): Energy Efficiency and Renewable Energy, Golden Field Office The Montana Department of Environmental Quality proposes to provide $500,000 of State Energy Program funds to Core Wind Power in Ronan, Montana to design, fabricate and test a new 3 megawatt, 8-meter wind turbine generator using existing printed circuit board manufacturing techniques and facilities. The Conductor Optimized Rotary Energy (CORE) technology uses a direct drive repeated multiplayer printed circuit board process to replace the old geared drive-train of the generator. This process will allow for

128

Renormalized Energy and Asymptotic Expansion of Optimal Logarithmic Energy on the Sphere  

E-Print Network (OSTI)

satisfying some growth assumption and some properties detailed below. The discrete energy wn is linkedRenormalized Energy and Asymptotic Expansion of Optimal Logarithmic Energy on the Sphere Laurent B repelling points confined by an external field verifying the weak growth assumption of Hardy and Kuijlaars

Paris-Sud XI, Université de

129

Optimal control of end-user energy storage  

E-Print Network (OSTI)

An increasing number of retail energy markets exhibit price fluctuations and provide customers such as data centers and residential users the opportunity to buy energy at lower than average prices. Such cost savings however are hard to obtain in practice because they require users to observe the price fluctuations and shift their consumption to low price periods. We propose to use energy storage to allow users to satisfy demand at times when prices are high with energy previously bought during low-price periods. We investigate how to control the battery to minimize energy costs, subject to fluctuating prices and user demand. We formulate this problem as a Markov Decision Process and show that the optimal policy has a threshold structure. We then numerically compute the thresholds using real-world traces from existing energy markets. We show that energy storage using this policy leads to significant cost savings, and study the impact of the battery size on the optimal policy and the potential savings.

van de Ven, Peter M; Massoulie, Laurent; Salonidis, Theodoros

2012-01-01T23:59:59.000Z

130

Energy, cost and carbondioxide optimization in regional energy systems with periodic and stochastic demand fluctuations  

Science Journals Connector (OSTI)

The new linear, stochastic optimization model ECCO...has been developed as a computerized planning tool for case studies on integrated energy management involving heat recovery by heat exchanger ... each of which...

Helmuth-M. Groscurth; Reiner Kümmel

1992-01-01T23:59:59.000Z

131

Optimal energy management of a micro-grid with renewable energy resources and demand response  

Science Journals Connector (OSTI)

With the introduction of smart energy grids and extensive penetration of renewable energy resources in distribution networks Micro-Grids (MGs) which are comprised of various alternative energy resources and Advanced Metering Infrastructure (AMI) systems for better implementation of DR programs are effectively employed. The design and development of Smart Energy Management Systems (SEMSs) for MGs are interesting and attractive research problems. In this paper a new SEMS architecture is presented to solve the multi-objective operation management and scheduling problem in a typical MG while considering different energy resource technologies Plug-in Hybrid Electric Vehicles (PHEVs) and DR programs. The energy management problem is formulated as a constrained mixed integer nonlinear multi-objective optimization problem in which the MG's total operating cost and net emissions must be minimized simultaneously. Three different optimization algorithms are used to solve the above mentioned problem and their outputs (Pareto optimal solutions) for the same problem are compared and analyzed.

M. Parvizimosaed; F. Farmani; A. Anvari-Moghaddam

2013-01-01T23:59:59.000Z

132

DEVELOPMENT OF A ROTARY MICROFILTER FOR RADIOACTIVE WASTE APPLICATIONS  

SciTech Connect

The processing rate of Savannah River Site (SRS) high-level waste decontamination processes are limited by the flow rate of the solid-liquid separation. The baseline process, using a 0.1 micron cross-flow filter, produces {approx}0.02 gpm/sq. ft. of filtrate under expected operating conditions. Savannah River National Laboratory (SRNL) demonstrated significantly higher filter flux for actual waste samples using a small-scale rotary filter. With funding from the U. S. Department of Energy Office of Cleanup Technology, SRNL personnel are evaluating and developing the rotary microfilter for radioactive service at SRS. The authors improved the design for the disks and filter unit to make them suitable for high-level radioactive service. They procured two units using the new design, tested them with simulated SRS wastes, and evaluated the operation of the units. Work to date provides the following conclusions and program status: (1) The authors modified the design of the filter disks to remove epoxy and Ryton{reg_sign}. The new design includes welding both stainless steel and ceramic coated stainless steel filter media to a stainless steel support plate. The welded disks were tested in the full-scale unit. They showed good reliability and met filtrate quality requirements. (2) The authors modified the design of the unit, making installation and removal easier. The new design uses a modular, one-piece filter stack that is removed simply by disassembly of a flange on the upper (inlet) side of the filter housing. All seals and rotary unions are contained within the removable stack. (3) While it is extremely difficult to predict the life of the seal, the vendor representative indicates a minimum of one year in present service conditions is reasonable. Changing the seal face material from silicon-carbide to a graphite-impregnated silicon-carbide is expected to double the life of the seal. Replacement of the current seal with an air seal could increase the lifetime to 5 years and is undergoing testing in the current work. (4) The bottom bushing showed wear due to a misalignment during the manufacture of the filter tank. Replacing the graphite bushing with a more wear resistant material such as a carbide material will increase the lifetime of the bushing. This replacement requires a more wear resistant part or coating to prevent excessive wear of the shaft. The authors are currently conducting testing with the more wear resistant bushing. (5) The project team plans to use the rotary microfilter as a filter in advance of an ion exchange process under development for potential deployment in SRS waste tank risers.

Poirier, M; David Herman, D; Samuel Fink, S

2008-02-25T23:59:59.000Z

133

Renewable Energy Sources Optimization: A Micro-Grid Model Design  

Science Journals Connector (OSTI)

Abstract This paper analyzes the possibility to develop the simple micro-grid model in optimizing the utilization of local renewable energy for on-grid area. The proposed micro-grid model integrates the power plants driven by renewable energy sources employing micro hydro (MHP) and photovoltaic system (PV) which is connected to grid system. This model is analyzed using HOMER and MATLAB software. Based on the load profiles and the availability of water resources, the HOMER simulates the proposed micro-grid model with three options of MHP capacity. The simulation results show that the micro-grid model with the largest capacity MHP produced the lowest energy cost, greatest reduction of CO2 emission, and largest fraction of renewable energy. However, these result required the expensive initial capital cost. In addition, the PV power generation was always recommended with a minimum capacity. Hence, MATLAB results show the performances of the power plants with renewable energy sources were used maximally.

R. Nazir; H.D. Laksono; E.P. Waldi; E. Ekaputra; P. Coveria

2014-01-01T23:59:59.000Z

134

Wood energy fuel cycle optimization in beech and spruce forests  

Science Journals Connector (OSTI)

A novel synergistic approach to reducing emissions from residential wood combustion (RWC) is presented. Wood energy fuel cycle optimization (FCO) aims to provide cleaner burning fuels through optimization of forestry and renewable energy management practices. In this work, beech and spruce forests of average and high quality were modelled and analysed to determine the volume of fuel wood and its associated bark fraction produced during typical forestry cycles. Two separate fuel wood bark production regimes were observed for beech trees, while only one production regime was observed for spruce. The single tree and stand models were combined with existing thinning parameters to replicate existing management practices. Utilizing estimates of initial seedling numbers and existing thinning patterns a dynamic model was formed that responded to changes in thinning practices. By varying the thinning parameters, this model enabled optimization of the forestry practices for the reduction of bark impurities in the fuel wood supply chain. Beech forestry cycles responded well to fuel cycle optimization with volume reductions of bark from fuel wood of between ~10% and ~20% for average and high quality forest stands. Spruce, on the other hand, was fairly insensitive to FCO with bark reductions of 0–5%. The responsiveness of beech to FCO further supports its status as the preferred RWC fuel in Switzerland. FCO could easily be extended beyond Switzerland and applied across continental Europe and North America.

Nickolas K Meyer; Marco Mina

2012-01-01T23:59:59.000Z

135

The Relationship between Water and Energy: Optimizing Water and Energy  

E-Print Network (OSTI)

understanding that the highest value opportunities for water conservation usually exist where there is the strongest interaction of water and energy. Steam management systems, process cooling, high quality water production and waste water treatment represent...

Finley, T.; Fennessey, K.; Light, R.

2007-01-01T23:59:59.000Z

136

Economic Optimal Operation of Community Energy Storage Systems in Competitive Energy Markets  

E-Print Network (OSTI)

Distributed, controllable energy storage devices offer several significant benefits to electric power system operation. Three such benefits include reducing peak load, providing standby power, and enhancing power quality. These benefits, however, are only realized during peak load or during an outage, events that are infrequent. This paper presents a means of realizing additional benefits by taking advantage of the fluctuating costs of energy in competitive energy markets. An algorithm for optimal charge/discharge scheduling of community energy storage (CES) devices as well as an analysis of several of the key drivers of such optimization are discussed.

Arghandeh, Reza; Onen, Ahmet; Jung, Jaesung; Broadwater, Robert P

2014-01-01T23:59:59.000Z

137

Economic optimal operation of Community Energy Storage systems in competitive energy markets  

Science Journals Connector (OSTI)

Abstract Distributed, controllable energy storage devices offer several benefits to electric power system operation. Three such benefits include reducing peak load, providing standby power, and enhancing power quality. These benefits, however, are only realized during peak load or during an outage, events that are infrequent. This paper presents a means of realizing additional benefits by taking advantage of the fluctuating costs of energy in competitive energy markets. An algorithm for optimal charge/discharge scheduling of Community Energy Storage (CES) devices as well as an analysis of several of the key drivers of the optimization are discussed.

Reza Arghandeh; Jeremy Woyak; Ahmet Onen; Jaesung Jung; Robert P. Broadwater

2014-01-01T23:59:59.000Z

138

Capsule: An Energy-Optimized Object Storage System for Memory-Constrained Sensor Devices  

E-Print Network (OSTI)

Capsule: An Energy-Optimized Object Storage System for Memory-Constrained Sensor Devices Gaurav-constrained sensor platforms. We propose Capsule, an energy-optimized log-structured object storage system for flash and supports energy-optimized imple- mentations of commonly used storage objects such as streams, files, arrays

Massachusetts at Amherst, University of

139

Dynamic online optimization of a house heating system in a fluctuating energy price  

E-Print Network (OSTI)

Dynamic online optimization of a house heating system in a fluctuating energy price scenario University of Science and Technology (NTNU), Trondheim, Norway Abstract: We consider dynamic optimization of the energy consumption in a building with energy storage capabilities. The goal is to find optimal policies

Skogestad, Sigurd

140

Method for Determining Optimal Residential Energy Efficiency Retrofit Packages  

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

Method for Determining Method for Determining Optimal Residential Energy Efficiency Retrofit Packages B. Polly, M. Gestwick, M. Bianchi, R. Anderson, S. Horowitz, C. Christensen, and R. Judkoff National Renewable Energy Laboratory April 2011 ii 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,

Note: This page contains sample records for the topic "optimized rotary energy" 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

Electric Field Driven Torque in Biological Rotary Motors  

E-Print Network (OSTI)

Ion driven rotary motors, such as Fo-ATP synthase (Fo) and the bacterial flagellar motor, act much like a battery-powered electric motor. They convert energy from ions as they move from high to low potential across a membrane into torque and rotary motion. Here we propose a mechanism whereby electric fields, emanating from channels in one or more stators, act on asymmetric charge distributions due to protonated and deprotonated sites in the rotor and drive it to rotate. The model predicts an ideal scaling law between torque and ion motive force, which can be hindered by mitochondrial mutations. The rotor of Fo drives the gamma-subunit to rotate within the ATP-producing complex (F1), working against an opposing torque that rises and falls periodically with angular position. Drawing an analogy with Brownian motion of a particle in a tilted washboard potential, we compute the highly nonlinear ATP production rate vs. proton motive force (pmf), showing a minimum pmf needed to drive ATP production with important me...

Miller,, John H; Maric, Sladjana; Infante, Hans L; Claycomb, James R

2013-01-01T23:59:59.000Z

142

Renewable Energy Optimization Report for Naval Station Newport  

SciTech Connect

In 2008, the U.S. Environmental Protection Agency (EPA) launched the RE-Powering America's Land initiative to encourage the development of renewable energy (RE) on potentially contaminated land and mine sites. As part of this effort, EPA is collaborating with the U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) to evaluate RE options at Naval Station (NAVSTA) Newport in Newport, Rhode Island. NREL's Renewable Energy Optimization (REO) tool was utilized to identify RE technologies that present the best opportunity for life-cycle cost-effective implementation while also serving to reduce energy-related carbon dioxide emissions and increase the percentage of RE used at NAVSTA Newport. The technologies included in REO are daylighting, wind, solar ventilation preheating (SVP), solar water heating, photovoltaics (PV), solar thermal (heating and electric), and biomass (gasification and cogeneration). The optimal mix of RE technologies depends on several factors including RE resources; technology cost and performance; state, utility, and federal incentives; and economic parameters (discount and inflation rates). Each of these factors was considered in this analysis. Technologies not included in REO that were investigated separately per NAVSTA Newport request include biofuels from algae, tidal power, and ground source heat pumps (GSHP).

Robichaud, R.; Mosey, G.; Olis, D.

2012-02-01T23:59:59.000Z

143

Energy optimization for off-lattice protein folding  

Science Journals Connector (OSTI)

Two three-dimensional AB off-lattice protein models consisting of hydrophobic and hydrophilic monomers are studied in this paper. By incorporating an extra energy contribution into the original energy function, the protein folding is converted from a constraint optimization problem into an unconstrained one which can be solved by the well-known gradient method. From the initial configurations randomly generated by the heuristic strategy proposed in this paper, our algorithm can find better results than those by nPERM for the four Fibonacci sequences. Based on the initial configurations obtained by energy landscape paving (ELP) routine, some of our results for the lowest energies are better than the best values reported in the literature.

Wenqi Huang; Mao Chen; Zhipeng Lü

2006-10-09T23:59:59.000Z

144

Rotary Mode Core Sample System availability improvement  

SciTech Connect

The Rotary Mode Core Sample System (RMCSS) is used to obtain stratified samples of the waste deposits in single-shell and double-shell waste tanks at the Hanford Site. The samples are used to characterize the waste in support of ongoing and future waste remediation efforts. Four sampling trucks have been developed to obtain these samples. Truck I was the first in operation and is currently being used to obtain samples where the push mode is appropriate (i.e., no rotation of drill). Truck 2 is similar to truck 1, except for added safety features, and is in operation to obtain samples using either a push mode or rotary drill mode. Trucks 3 and 4 are now being fabricated to be essentially identical to truck 2.

Jenkins, W.W.; Bennett, K.L.; Potter, J.D. [Westinghouse Hanford Co., Richland, WA (United States); Cross, B.T.; Burkes, J.M.; Rogers, A.C. [Southwest Research Institute (United States)

1995-02-28T23:59:59.000Z

145

Rollover analysis of rotary mode core sampler truck No. 2  

SciTech Connect

This document provides estimate of limiting speed and rollover analysis of rotary mode core sampler truck No. 2 (RMCST No. 2).

Ziada, H.H.

1994-11-08T23:59:59.000Z

146

Optimal energy-preserving conversions of quantum coherence  

E-Print Network (OSTI)

Given two coherent superpositions of energy eigenstates, we search for the best evolution that converts one superposition into the other without exchanging energy with the surrounding environment. We consider both deterministic and probabilistic evolutions, which can be obtained by measuring the environment and postselecting a subset of the outcomes. For every fixed value of the postselection probability, we characterize the process that maximizes the fidelity of the output state with the target, showing that the optimal measurement can be chosen without loss of generality to be binary and pure. We then construct a recursive protocol, which allows one to increase the success probability while reaching maximum fidelity at each step of the iteration. In turn, the recursive protocol is used to generate efficient approximations of the optimal fidelity-probability tradeoff, via a technique dubbed coherent coarse-graining. Such a technique can be applied not only to energy-preserving conversions, but also to general conversions of pure states under linear constraints. The recursive protocol and its coherent coarse-graining are illustrated in a series of applications to phase estimation, quantum cloning, coherent state amplification, and ancilla-driven computation.

Yuxiang Yang; Giulio Chiribella

2015-02-01T23:59:59.000Z

147

Optimal Operation of Independent Storage Systems in Energy and Reserve Markets with High Wind Penetration  

E-Print Network (OSTI)

Optimal Operation of Independent Storage Systems in Energy and Reserve Markets with High Wind to offer energy and reserve in the day-ahead market and energy in the hour-ahead market. We, energy and reserve markets, wind power integration, stochastic optimization. NOMENCLATURE h, t Indices

Mohsenian-Rad, Hamed

148

Optimizing the Output of a Human-Powered Energy Harvesting System with Miniaturization and Integrated Control  

E-Print Network (OSTI)

1 Optimizing the Output of a Human-Powered Energy Harvesting System with Miniaturization mechanical energy from human foot-strikes and explore its configuration and control towards optimized energy output. Dielectric Elastomers (DEs) are high-energy density, soft, rubber-like material

Potkonjak, Miodrag

149

Exergetic optimization of solar collector and thermal energy storage system  

Science Journals Connector (OSTI)

This paper deals with the exergetic optimization of a solar thermal energy system. This consists of a solar collector (SC) and a rectangular water storage tank (ST) that contains a phase change material (PCM) distributed in an assembly of slabs. The study takes into account both conduction and convection heat transfer mode for water in the SC, and also the phase change process for the PCM in the ST. An analytical solution for the melting process in the PCM is also presented. The results of the study are compared with previous experimental data, confirming the accuracy of the model. Results of a numerical case study are presented and discussed.

F. Aghbalou; F. Badia; J. Illa

2006-01-01T23:59:59.000Z

150

Optimization of a hybrid solar energy collector system  

E-Print Network (OSTI)

OPTIMIZATION OF A HYBRID SOLAR ENERGY COLLECTOR SYSTEM A Thesis by ALAN M. SHI NEMAN Submitted to the Graduate College of Texas A&N University in partial fulfillment of the requirement for the degree MASTER OF SCIENCE May 1981 Major Subject...: Mechanical Engineering THE STRUCTURAL IMPACT OF COMMODITY FARM PROGRAMS ON FARMS IN THE SOUTHERN TEXAS HIGH PLAINS A Thesis by CHRISTINA KAY SHIRLEY Submitted to the Graduate College of Texas A&M University in par'tial fulfillment of the requirement...

Shinkman, Alan M.

1981-01-01T23:59:59.000Z

151

Optimizing energy for a ‘green’ vaccine supply chain  

Science Journals Connector (OSTI)

Abstract This paper describes an approach piloted in the Kasserine region of Tunisia to increase the energy efficiency of the distribution of vaccines and temperature sensitive drugs. The objectives of an approach, known as the ‘net zero energy’ (NZE) supply chain were demonstrated within the first year of operation. The existing distribution system was modified to store vaccines and medicines in the same buildings and to transport them according to pre-scheduled and optimized delivery circuits. Electric utility vehicles, dedicated to the integrated delivery of vaccines and medicines, improved the regularity and reliability of the supply chains. Solar energy, linked to the electricity grid at regional and district stores, supplied over 100% of consumption meeting all energy needs for storage, cooling and transportation. Significant benefits to the quality and costs of distribution were demonstrated. Supply trips were scheduled, integrated and reliable, energy consumption was reduced, the recurrent cost of electricity was eliminated and the release of carbon to the atmosphere was reduced. Although the initial capital cost of scaling up implementation of NZE remain high today, commercial forecasts predict cost reduction for solar energy and electric vehicles that may permit a step-wise implementation over the next 7–10 years. Efficiency in the use of energy and in the deployment of transport is already a critical component of distribution logistics in both private and public sectors of industrialized countries. The NZE approach has an intensified rationale in countries where energy costs threaten the maintenance of public health services in areas of low population density. In these countries where the mobility of health personnel and timely arrival of supplies is at risk, NZE has the potential to reduce energy costs and release recurrent budget to other needs of service delivery while also improving the supply chain.

John S. Lloyd; Steve McCarney; Ramzi Ouhichi; Patrick Lydon; Michel Zaffran

2014-01-01T23:59:59.000Z

152

Weather forecast-based optimization of integrated energy systems.  

SciTech Connect

In this work, we establish an on-line optimization framework to exploit detailed weather forecast information in the operation of integrated energy systems, such as buildings and photovoltaic/wind hybrid systems. We first discuss how the use of traditional reactive operation strategies that neglect the future evolution of the ambient conditions can translate in high operating costs. To overcome this problem, we propose the use of a supervisory dynamic optimization strategy that can lead to more proactive and cost-effective operations. The strategy is based on the solution of a receding-horizon stochastic dynamic optimization problem. This permits the direct incorporation of economic objectives, statistical forecast information, and operational constraints. To obtain the weather forecast information, we employ a state-of-the-art forecasting model initialized with real meteorological data. The statistical ambient information is obtained from a set of realizations generated by the weather model executed in an operational setting. We present proof-of-concept simulation studies to demonstrate that the proposed framework can lead to significant savings (more than 18% reduction) in operating costs.

Zavala, V. M.; Constantinescu, E. M.; Krause, T.; Anitescu, M.

2009-03-01T23:59:59.000Z

153

Optimal Energy Recovery from Ammonia Synthesis in a Solar Thermal Power Plant  

Science Journals Connector (OSTI)

This work estimates the optimal performance, and evaluates a process modification to approach optimal ammonia production and subsequent energy produced, in the ammonia synthesis heat recovery system for a 10 MW(e...

S. Siddiq; S. Khushnood; Z. U. Koreshi…

2013-09-01T23:59:59.000Z

154

Optimal design and operation of energy systems under uncertainty  

Science Journals Connector (OSTI)

Abstract This paper is concerned with integrated design and operation of energy systems that are subject to significant uncertainties. The problem is cast as a two-stage stochastic programming problem, which can be transformed into a large-scale nonconvex mixed-integer nonlinear programming problem (MINLP). The MINLP exhibits a decomposable structure that can be exploited by nonconvex generalized Benders decomposition (NGBD) for efficient global optimization. This paper extends the NGBD method developed by the authors recently, such that the method can handle non-separable functions and integer operational decisions. Both the standard NGBD algorithm and an enhanced one with piecewise convex relaxations are discussed. The advantages of the proposed formulation and solution method are demonstrated through case studies of two industrial energy systems, a natural gas production network and a polygeneration plant. The first example shows that the two-stage stochastic programming formulation can result in better expected economic performance than the deterministic formulation, and that NGBD is more efficient than a state-of-the-art global optimization solver. The second example shows that the integration of piecewise convex relaxations can improve the efficiency of NGBD by at least an order of magnitude.

Xiang Li; Paul I. Barton

2014-01-01T23:59:59.000Z

155

Oneida Tribe of Indians of Wisconsin Energy Optimization Model  

SciTech Connect

Oneida Nation is located in Northeast Wisconsin. The reservation is approximately 96 square miles (8 miles x 12 miles), or 65,000 acres. The greater Green Bay area is east and adjacent to the reservation. A county line roughly splits the reservation in half; the west half is in Outagamie County and the east half is in Brown County. Land use is predominantly agriculture on the west 2/3 and suburban on the east 1/3 of the reservation. Nearly 5,000 tribally enrolled members live in the reservation with a total population of about 21,000. Tribal ownership is scattered across the reservation and is about 23,000 acres. Currently, the Oneida Tribe of Indians of Wisconsin (OTIW) community members and facilities receive the vast majority of electrical and natural gas services from two of the largest investor-owned utilities in the state, WE Energies and Wisconsin Public Service. All urban and suburban buildings have access to natural gas. About 15% of the population and five Tribal facilities are in rural locations and therefore use propane as a primary heating fuel. Wood and oil are also used as primary or supplemental heat sources for a small percent of the population. Very few renewable energy systems, used to generate electricity and heat, have been installed on the Oneida Reservation. This project was an effort to develop a reasonable renewable energy portfolio that will help Oneida to provide a leadership role in developing a clean energy economy. The Energy Optimization Model (EOM) is an exploration of energy opportunities available to the Tribe and it is intended to provide a decision framework to allow the Tribe to make the wisest choices in energy investment with an organizational desire to establish a renewable portfolio standard (RPS).

Troge, Michael [Project Manager

2014-12-30T23:59:59.000Z

156

Optimal Use of Power-to-Gas Energy Storage Systems in an 85% Renewable Energy Scenario  

Science Journals Connector (OSTI)

Abstract In future energy systems with high shares of fluctuating renewable energy generation, electricity storage will become increasingly important for the utilization of surplus energy. The Power-to-Gas (PtG) technology is one promising option for solving the challenge of long-term electricity storage and is theoretically able to ease situations of grid congestion at the same time. This article presents the perspectives of PtG in an 85% renewable energy scenario for Germany, quantifying an economic optimum for the PtG capacity as well as an optimized spatial PtG deployment.

Mareike Jentsch; Tobias Trost; Michael Sterner

2014-01-01T23:59:59.000Z

157

Rotary Pipeline Processors Simon Moore, Peter Robinson, Steve Wilcox  

E-Print Network (OSTI)

DRAFT Rotary Pipeline Processors Simon Moore, Peter Robinson, Steve Wilcox Computer Laboratory, University of Cambridge Submitted: 15th December, 1995 Revised: 30th May, 1996 Abstract The rotary pipeline processor is a new architecture for su- perscalar computing. It is based on a simple and regular pipeline

Robinson, Peter

158

Optimal strategies for operating energy storage in an arbitrage Lisa Flatley  

E-Print Network (OSTI)

Optimal strategies for operating energy storage in an arbitrage market Lisa Flatley Robert S Mac, energy storage, optimal localized algorithm. AMS subject classifications. 49K30, 93C10 1 Introduction [0, T], for an energy store which is trading in an arbitrage market. Our theory allows for leakage

Sengun, Mehmet Haluk

159

Optimal control of a multi-energy district boiler: a case study  

E-Print Network (OSTI)

Optimal control of a multi-energy district boiler: a case study J. Eynard S. Grieu M. Polit of a multi-energy district boiler (La Rochelle, France) which supplies domestic hot water and heats optimizing the use of both the tank and the wood boiler. As a result, fossil energy consumption and CO2

Paris-Sud XI, Université de

160

An Evolutionary Multi-objective Approach for Speed Tuning Optimization with Energy Saving  

E-Print Network (OSTI)

An Evolutionary Multi-objective Approach for Speed Tuning Optimization with Energy Saving in railway manage- ment is presented for optimizing both travel duration and energy saving. This approach reported and analyzed. Index Terms--Multi-objective, Evolutionary algorithm, Energy saving, Railway

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "optimized rotary energy" 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

Multi-objective Evolutionary Algorithm for Speed Tuning Optimization with Energy Saving in Railway  

E-Print Network (OSTI)

Multi-objective Evolutionary Algorithm for Speed Tuning Optimization with Energy Saving in Railway is proposed for optimization of speed profiles in railway inte- grating energy saving. This approach deals) and results are then provided and analyzed. Keywords Multi-objective, Evolutionary algorithm, Energy saving

Paris-Sud XI, Université de

162

Modeling Zero Energy Building: technical and economical optimization Maria Ferrara1-2  

E-Print Network (OSTI)

1 Modeling Zero Energy Building: technical and economical optimization Maria Ferrara1-2 , Joseph by the recast of Energy Performance of Buildings. The aim of this work is to provide a useful method to deal combines the use of TRNSYS, building energy simulation program, with GenOpt, Generic Optimization program

Paris-Sud XI, Université de

163

Optimization of Energy and Water Consumption in Corn-Based Ethanol Plants  

Science Journals Connector (OSTI)

Optimization of Energy and Water Consumption in Corn-Based Ethanol Plants ... In this paper we study the simultaneous energy and water consumption in the conceptual design of corn-based ethanol plants. ... Review of Energy Optimization in Corn-Based Ethanol Plant ...

Elvis Ahmetovi?; Mariano Martín; Ignacio E. Grossmann

2010-05-11T23:59:59.000Z

164

Optimization of quantum Monte Carlo wave functions using analytical energy derivatives  

E-Print Network (OSTI)

Optimization of quantum Monte Carlo wave functions using analytical energy derivatives Xi Lin of the local energy, H^ / .5 If the wave function were the exact ground eigenstate, the local energy would November 1999 An algorithm is proposed to optimize quantum Monte Carlo QMC wave functions based on Newton

Lin, Xi

165

Energy management of HEV to optimize fuel consumption and pollutant emissions  

E-Print Network (OSTI)

AVEC'12 Energy management of HEV to optimize fuel consumption and pollutant emissions Pierre Michel, several energy management strategies are proposed to optimize jointly the fuel consumption and pollutant-line strategy are given. Keywords: Hybrid Electric Vehicle (HEV), energy management, pollution, fuel consumption

Paris-Sud XI, Université de

166

Optimal and Autonomous Incentive-based Energy Consumption Scheduling Algorithm for Smart Grid  

E-Print Network (OSTI)

1 Optimal and Autonomous Incentive-based Energy Consumption Scheduling Algorithm for Smart Grid by running a distributed algorithm to find the optimal energy consumption schedule for each subscriber consumption occurs in buildings. This represents 39% of the total energy consumption among all sectors

Wong, Vincent

167

A Stochastic Programming Framework for Optimal Storage Bidding in Energy and Reserve Markets  

E-Print Network (OSTI)

1 A Stochastic Programming Framework for Optimal Storage Bidding in Energy and Reserve Markets to offer both energy and reserve in the day-ahead as well as the hour- ahead markets. We are particularly: Independent storage systems, energy and reserve markets, wind power integration, stochastic optimization I

Mohsenian-Rad, Hamed

168

Wireless Networked Lighting Systems for Optimizing Energy Savings and User Satisfaction  

E-Print Network (OSTI)

Wireless Networked Lighting Systems for Optimizing Energy Savings and User Satisfaction Yao for modern lighting systems ­ energy efficiency and user satisfaction. The intelligent lighting optimization algorithm formulates lighting control as a linear programming problem to minimize energy usage and meet

Agogino, Alice M.

169

Optimization Intensive Energy Harvesting Mahsan Rofouei, Mohammad Ali Ghodrat, Miodrag Potkonjak  

E-Print Network (OSTI)

Optimization Intensive Energy Harvesting Mahsan Rofouei, Mohammad Ali Ghodrat, Miodrag Potkonjak of primary limiting factors of MSs is their energy sensitivity. In order to overcome this limitation, we have developed an optimization intensive approach for energy harvesting. Our goal is to size and position

Potkonjak, Miodrag

170

Optimal investment and scheduling of distributed energy resources with uncertainty in electric vehicles driving schedules  

E-Print Network (OSTI)

R. Firestone, “Optimal Technology Selection and Operation ofDOE - Energy Vehicle Technologies Program. Plug-in HybridUsing vehicle-to-grid technology for frequency regulation

Cardoso, Goncalo

2014-01-01T23:59:59.000Z

171

TESTING OF THE SECOND GENERATION SPINTEK ROTARY FILTER -11357  

SciTech Connect

The SpinTek rotary microfilter has been developed under the Department of Energy (DOE) Office of Environmental Management (EM) for the purpose of deployment in radioactive service in the DOE complex. The unit that was fabricated and tested is the second generation of the filter that incorporates recommended improvements from previous testing. The completion of this test satisfied a key milestone for the EM technology development program and technology readiness for deployment by Savannah River Remediation in the Small Column Ion Exchange and Sludge Washing processes at the Savannah River Site (SRS). The Savannah River National Laboratory (SRNL) contracted SpinTek Filtration to fabricate a full scale 25 disk rotary filter and perform a 1000 hour endurance test with a simulated SRS sludge. Over 1500 hours of operation have been completed with the filter. SpinTek Filtration fabricated a prototypic 25 disk rotary filter including updates to manufacturing tolerances, an updated design to the rotary joint, improved cooling to the bottom journal, decreases in disk and filter shaft hydraulic resistances. The filter disks were fabricated with 0.5 {micro} pore size, sintered-metal filter media manufactured by Pall Corporation (M050). After fabrication was complete, the filter passed acceptance tests demonstrating rejection of solids and clean water flux with a 50% improvement over the previous filters. Once the acceptance test was complete, a 1000 hour endurance test was initiated simulating a sludge washing process. The test used a simulated SRS Sludge Batch 6 recipe. The insoluble solids started at 5 wt% and were raised to 10 and 15 wt% insoluble solids to simulate the concentration of a large volume tank. The filter system was automated and set up for 24 hour unattended operation. To facilitate this, process control logic was written to operate the filter. During the development it was demonstrated that the method of starting and stopping the filter can affect the build up of filter cake on the disks and therefore the performance of the filter. The filter performed well with the simulant. Very little drop in production was noticed between the 5 and 10 wt% insoluble solids feed. Increasing to 15 wt% had a more pronounced impact due to the rheology of the feed. Acid cleaning was used to clean the filter disks in-situ and restore filtration rate to almost 90% of the initial clean disk rate. Eighty liters of 0.2 M nitric acid in conjunction with water rinses were used to clean the filter in less than 2 hours. Filter testing was completed after 1000 hours of operation were performed on the final filter assembly configuration. The total run time for the testing was over 1500 hours. At the end of the test, the sludge washing was performed successfully from approximately 5.6 M to less than 1 M sodium.

Herman, D.; Poirier, M.; Fowley, M.; Keefer, M.; Huff, T.

2011-02-02T23:59:59.000Z

172

CAD of Microwave Chemistry Reactors with Energy Efficiency Optimized for Multiple Reactants  

E-Print Network (OSTI)

CAD of Microwave Chemistry Reactors with Energy Efficiency Optimized for Multiple Reactants Ethan K for additional practically important condition requiring the reactor's optimal design for different reactants reactor for 3 different materials: with 1/5 liter reactants, seven-parameter optimization yields the best

Yakovlev, Vadim

173

A Relaxation Strategy for the Optimization of Airborne Wind Energy Sebastien Gros, M. Zanon and Moritz Diehl  

E-Print Network (OSTI)

A Relaxation Strategy for the Optimization of Airborne Wind Energy Systems SÂŽebastien Gros, M. Zanon and Moritz Diehl Abstract-- Optimal control is recognized by the Airborne Wind Energy (AWE problem. Keywords : airborne wind energy, optimal control, non- convex optimization, flight control I

174

Optimal Sizing of Energy Storage System in Solar Energy Electric Vehicle Using Genetic Algorithm and Neural Network  

Science Journals Connector (OSTI)

Owing to sun’s rays distributing randomly and discontinuously and load fluctuation, energy storage system is very important in Solar Energy Electric Vehicle (SEEV). The combinatorial optimization ... and neural n...

Shiqiong Zhou; Longyun Kang; MiaoMiao Cheng…

2007-01-01T23:59:59.000Z

175

NREL-Optimizing Rooftop Space with SolOpt Presentation | Open Energy  

Open Energy Info (EERE)

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

176

Optimal Real-time Dispatch for Integrated Energy Systems  

E-Print Network (OSTI)

was approximately to heat- or load-follow. As in Baltimore,reviews of CHP cost and performance. no DG load-follow heat-follow optimal load-follow heat-follow optimal TOU CPP year

Firestone, Ryan Michael

2007-01-01T23:59:59.000Z

177

Secure Distributed Solution for Optimal Energy Consumption Scheduling in Smart Grid  

E-Print Network (OSTI)

Secure Distributed Solution for Optimal Energy Consumption Scheduling in Smart Grid Mohammad: Smart Grid, Energy Consumption Schedule, Privacy. I. INTRODUCTION Energy is critically important varying energy prices, giving incentive for using energy at off-peak hours. Smart grids provide innovative

Shehab, Mohamed

178

Computational experience with a three-dimensional rotary engine combustion model  

SciTech Connect

A new computer code was developed to analyze the chemically reactive flow and spray combustion processes occurring inside a stratified-charge rotary engine. Mathematical and numerical details of the new code were recently described by the present authors. The results are presented of limited, initial computational trials as a first step in a long-term assessment/validation process. The engine configuration studied was chosen to approximate existing rotary engine flow visualization and hot firing test rigs. Typical results include: (1) pressure and temperature histories, (2) torque generated by the nonuniform pressure distribution within the chamber, (3) energy release rates, and (4) various flow-related phenomena. These are discussed and compared with other predictions reported in the literature. The adequacy or need for improvement in the spray/combustion models and the need for incorporating an appropriate turbulence model are also discussed.

Raju, M.S.; Willis, E.A.

1990-04-01T23:59:59.000Z

179

TESTING OF A FULL-SCALE ROTARY MICROFILTER FOR THE ENHANCED PROCESS FOR RADIONUCLIDES REMOVAL  

SciTech Connect

Savannah River National Laboratory (SRNL) researchers are investigating and developing a rotary microfilter for solid-liquid separation applications in the Department of Energy (DOE) complex. One application involves use in the Enhanced Processes for Radionuclide Removal (EPRR) at the Savannah River Site (SRS). To assess this application, the authors performed rotary filter testing with a full-scale, 25-disk unit manufactured by SpinTek Filtration with 0.5 micron filter media manufactured by Pall Corporation. The filter includes proprietary enhancements by SRNL. The most recent enhancement is replacement of the filter's main shaft seal with a John Crane Type 28LD gas-cooled seal. The feed material was SRS Tank 8F simulated sludge blended with monosodium titanate (MST). Testing examined total insoluble solids concentrations of 0.06 wt % (126 hours of testing) and 5 wt % (82 hours of testing). The following are conclusions from this testing.

Herman, D; David Stefanko, D; Michael Poirier, M; Samuel Fink, S

2009-01-01T23:59:59.000Z

180

Rotary seal with improved film distribution  

DOE Patents (OSTI)

The present invention is a generally circular rotary seal that establishes sealing between relatively rotatable machine components for lubricant retention and environmental exclusion, and incorporates seal geometry that interacts with the lubricant during relative rotation to distribute a lubricant film within the dynamic sealing interface. The features of a variable inlet size, a variable dynamic lip flank slope, and a reduction in the magnitude and circumferentially oriented portion of the lubricant side interfacial contact pressure zone at the narrowest part of the lip, individually or in combination thereof, serve to maximize interfacial lubrication in severe operating conditions, and also serve to minimize lubricant shear area, seal torque, seal volume, and wear, while ensuring retrofitability into the seal grooves of existing equipment.

Dietle, Lannie Laroy; Schroeder, John Erick

2013-10-08T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Hector is an Energy effiCient Tree-based Optimized Routing protocol for wireless networks  

E-Print Network (OSTI)

Hector is an Energy effiCient Tree-based Optimized Routing protocol for wireless networks Nathalie geographic locations. We propose HECTOR, a hybrid energy efficient tree-based optimized routing protocol, based on two sets of virtual coordinates. One set is based on rooted tree coordinates, and the other

Stojmenovic, Ivan

182

Optimization of the baseline and the parent muon energy for a low energy neutrino factory  

Science Journals Connector (OSTI)

We discuss the optimal setup for a low energy neutrino factory in order to achieve a 5? discovery of a nonzero mixing angle ?13, a nonzero CP phase ?CP, and the mass hierarchy. We explore parent muon energies in the range 5–16 GeV, and baselines in the range 500–5000 km. We present the results in terms of the reach in sin?2?13, emphasizing the dependence of the optimal baseline on the true value of ?CP. We show that the sensitivity of a given setup typically increases with parent muon energy, reaching saturation for higher energies. The saturation energy is larger for longer baselines; we present an estimate of this dependence. In the light of the recent indications of a large ?13, we also determine how these preferences would change if indeed a large ?13 is confirmed. In such a case, the baselines ?2500??km (?1500??km) may be expected to lead to hierarchy determination (?CP discovery) with the minimum exposure.

Amol Dighe, Srubabati Goswami, and Shamayita Ray

2012-10-02T23:59:59.000Z

183

Computational Modeling of Relevant Automotive Rotary Spray Painting Process  

Science Journals Connector (OSTI)

During the automotive spray painting process, metallic car shells are conveyed at ... specified constant rectilinear speed through the booth. Robot-assisted rotary atomizers spray the car shell ... path particula...

Abraham J. Salazar

2013-01-01T23:59:59.000Z

184

Evaluation of Alternative Filter Media for the Rotary Microfilter  

SciTech Connect

M. R. Poirier , D. T. Herman & R. Bhave (2012) Evaluation of Alternative Filter Media for the Rotary Microfilter, Separation Science and Technology, 47:14-15, 2108-2114

Poirier, M. [Savannah River National Laboratory, Environmental and Chemical Process Technology; Herman, [Savannah River National Laboratory, Environmental and Chemical Process Technology; Bhave, Ramesh R [ORNL

2012-01-01T23:59:59.000Z

185

Purifying rotary kiln waste gases in chamotte burning  

Science Journals Connector (OSTI)

A study of the operation of electric filters connected to rotary kilns for burning clay into chamotte showed that to increase the dust extraction efficiency it is necessary: with dust concentrations in the gas...

Yu. I. Chander; S. Z. Belinskii; L. G. Borisovskii

186

Novel design of a rotary valve using axiomatic design  

E-Print Network (OSTI)

Rotary valves have existed for millennia; and while they have developed tremendously since the first Roman valves, many of the same problems have persisted. The basic problems are caused by the coupling of functional ...

Peliks, Robert Bilgor

2005-01-01T23:59:59.000Z

187

Surf zone monitoring using rotary wing Unmanned Aerial Vehicles  

Science Journals Connector (OSTI)

We investigate the potential of rotary wing Unmanned Aerial Vehicles (UAVs) to monitor the surf zone. We show that these UAVs are extremely flexible surveying platforms that can gather near-continuous, moderate spatial and high temporal resolution ...

Ronald L. Brouwer; Matthieu A. de Schipper; Patrick F. Rynne; Fiona J. Graham; Ad J.H.M. Reniers; Jamie H. MacMahan

188

Ultrasonic Rayleigh wave inspection of unit train rotary couplers  

E-Print Network (OSTI)

of using ultrasonic Rayleigh waves I' or the inspection of rotary couplers 'O'. Experiments rvere conducted on three couplers, one that was cracked, one that was nerv, and one new coupler with simulated cracks. IJsing a commercial probe. indications... of using ultrasonic Rayleigh waves I' or the inspection of rotary couplers 'O'. Experiments rvere conducted on three couplers, one that was cracked, one that was nerv, and one new coupler with simulated cracks. IJsing a commercial probe. indications...

Salkowski, Charles Leo

2012-06-07T23:59:59.000Z

189

Utility Optimal Scheduling in Energy Harvesting Networks Longbo Huang, Michael J. Neely  

E-Print Network (OSTI)

], etc. However, to take full advantage of the energy har- vesting technology, efficient scheduling referred to as "recycling" energy [5]. This energy har- vesting ability is crucial for many network designUtility Optimal Scheduling in Energy Harvesting Networks Longbo Huang, Michael J. Neely ABSTRACT

Huang, Longbo

190

An Energy Efficient Select Optimal Neighbor Protocol for Wireless Ad Hoc Networks  

E-Print Network (OSTI)

. This is especially important in wireless sensor networks where energy consumption is the primary concern. A number node compared to CSMA/CA based MAC protocols such as IEEE 802.11. When electronic energy consumption is a considerable part of energy consumption, SON has a better energy performance than traditional optimal pruning

New South Wales, University of

191

Toward an Optimal Fixed-Priority Algorithm for Energy-Harvesting Real-Time Systems  

E-Print Network (OSTI)

on their energy consumption. Thus, the results of this work rely on the assumption that tasks energy consumptionToward an Optimal Fixed-Priority Algorithm for Energy-Harvesting Real-Time Systems Yasmina the real-time xed-priority scheduling problem for battery-powered embedded systems whose energy storage

Paris-Sud XI, Université de

192

IEEE/ACM TRANS. ON NETWORKING, TO APPEAR 1 Utility Optimal Scheduling in Energy Harvesting  

E-Print Network (OSTI)

the environment. For instance, by converting me- chanical vibration into energy [1], by using solar panels [2IEEE/ACM TRANS. ON NETWORKING, TO APPEAR 1 Utility Optimal Scheduling in Energy Harvesting Networks performance in energy harvesting networks with only finite capacity energy storage devices. In these networks

Huang, Longbo

193

Optimizing Architectural and Structural Aspects of Buildings towards Higher Energy Efficiency  

E-Print Network (OSTI)

. INTRODUCTION The continuous rising of energy consumption is a current and global concern. On the one hand for the most important energy consumption rate, estimated at around 40% of the total energy used worldwideOptimizing Architectural and Structural Aspects of Buildings towards Higher Energy Efficiency

Boyer, Edmond

194

Optimization Online - Energy Savings in Wireless Mesh Networks in ...  

E-Print Network (OSTI)

Jan 24, 2011 ... Abstract: Energy consumption of communication systems is ... Keywords: Energy savings, wireless Mesh Networks, Green networking.

Antonio Capone

2011-01-24T23:59:59.000Z

195

BPA Wins Platts Global Energy Award for Grid Optimization | Department of  

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

BPA Wins Platts Global Energy Award for Grid Optimization BPA Wins Platts Global Energy Award for Grid Optimization BPA Wins Platts Global Energy Award for Grid Optimization December 18, 2013 - 2:25pm Addthis Platts awarded the Bonneville Power Administration (BPA) a Global Energy Award for grid optimization on December 12 in New York City for its development of a synchrophasor network. BPA is part of the Recovery Act-funded Western Interconnection Synchrophasor Program, in which 19 utilities have partnered with the Department of Energy to provide real-time visibility of the entire western power system that covers 14 states, two Canadian provinces and a portion of the Baja Peninsula in Mexico. Through a dedicated, secure network provided by Western Interconnection Synchrophasor Program, BPA is sharing synchrophasor data with 10 other utilities,

196

High fidelity nuclear energy system optimization towards an environmentally benign, sustainable, and secure energy source.  

SciTech Connect

The impact associated with energy generation and utilization is immeasurable due to the immense, widespread, and myriad effects it has on the world and its inhabitants. The polar extremes are demonstrated on the one hand, by the high quality of life enjoyed by individuals with access to abundant reliable energy sources, and on the other hand by the global-scale environmental degradation attributed to the affects of energy production and use. Thus, nations strive to increase their energy generation, but are faced with the challenge of doing so with a minimal impact on the environment and in a manner that is self-reliant. Consequently, a revival of interest in nuclear energy has followed, with much focus placed on technologies for transmuting nuclear spent fuel. The performed research investigates nuclear energy systems that optimize the destruction of nuclear waste. In the context of this effort, nuclear energy system is defined as a configuration of nuclear reactors and corresponding fuel cycle components. The proposed system has unique characteristics that set it apart from other systems. Most notably the dedicated High-Energy External Source Transmuter (HEST), which is envisioned as an advanced incinerator used in combination with thermal reactors. The system is configured for examining environmentally benign fuel cycle options by focusing on minimization or elimination of high level waste inventories. Detailed high-fidelity exact-geometry models were developed for representative reactor configurations. They were used in preliminary calculations with Monte Carlo N-Particle eXtented (MCNPX) and Standardized Computer Analysis for Licensing Evaluation (SCALE) code systems. The reactor models have been benchmarked against existing experimental data and design data. Simulink{reg_sign}, an extension of MATLAB{reg_sign}, is envisioned as the interface environment for constructing the nuclear energy system model by linking the individual reactor and fuel component sub-models for overall analysis of the system. It also provides control over key user input parameters and the ability to effectively consolidate vital output results for uncertainty/sensitivity analysis and optimization procedures. The preliminary analysis has shown promising advanced fuel cycle scenarios that include Pressure Water Reactors Pressurized Water Reactors (PWRs), Very High Temperature Reactors (VHTRs) and dedicated HEST waste incineration facilities. If deployed, these scenarios may substantially reduce nuclear waste inventories approaching environmentally benign nuclear energy system characteristics. Additionally, a spent fuel database of the isotopic compositions for multiple design and control parameters has been created for the VHTR-HEST input fuel streams. Computational approaches, analysis metrics, and benchmark strategies have been established for future detailed studies.

Tsvetkov, Pavel Valeryevich (Texas A& M University, College Station, TX); Rodriguez, Salvador B.; Ames, David E., II (Texas A& M University, College Station, TX); Rochau, Gary Eugene

2009-09-01T23:59:59.000Z

197

Rotating head for rotary drilling rigs  

SciTech Connect

A rotating head is claimed for a rotary drilling rig which is to be secured to the top of a well pipe having an inner rotating portion with an opening therethrough which permits passage of drill pipe, pipe joints, and Kelly tools; the rotating portion has an annular drive rubber formed integrally with the top portion thereof. A rotating head drive bushing having an opening with a cross-sectional shape generally conforming to the cross-section of the Kelly tool to permit only sliding motion therebetween is provided with helical external ridges which produce a disengagable gripping action with the opening in the drive rubber at the top of the rotating portion of the rotating head. The rotating portion has a conventional stripper rubber at the bottom thereof and is mounted with a double roller bearing to provide low friction motion with respect to the fixed portion of the head. The double roller bearing is lubricated with a viscous lubricating material and paddles are provided between the sets of rollers of the double roller bearing for distributing the viscous lubricating material and in particular propel it onto the upper set of bearings; the upper body portion of the rotating head is readily detachable from the lower sleeve portion which is normally welded to the well conductor pipe.

Adams, J.R.

1983-09-27T23:59:59.000Z

198

Design of a new type of rotary Stirling engine  

SciTech Connect

The Stirling machine has had wide diffusion only in cold or cryogenic applications (Philips) while the engine, despite big efforts of large Companies (Philips, Westinghouse, General Motors, etc.), never definitively reached the market; today new interest is raised correlated with environmental and energy related considerations. Thus, researchers efforts are addressed towards the design of innovative and more competitive Stirling engine configurations, like the one here proposed. This paper describes the configuration of a new, rotary Stirling engine. In the cold part of the engine, the working fluid is compressed by a rotating element, then it passes through the regenerator from the cold to the hot end, where it absorbs the heat and expands in the high pressure and temperature area. The high pressure working fluid pushes on the rotating element (the so called rotator) and the engine outputs power. In the design, compression and expansion volumes change with the rotation. Two rotators are connected with a set of gears: therefore, the engine transmission system is simplified and dimensions are reduced.

Abenavoli, R.I.; Dong, W.; Fedele, L.; Sciaboni, A. [Univ. La Sapienza, Rome (Italy). Dipt. di Meccanica e Aeronautica

1996-12-31T23:59:59.000Z

199

Optimal Futures Market Strategies for Energy Service Providers  

Science Journals Connector (OSTI)

The previous chapter focused on developing a stochastic model for the dynamics of electricity prices. Here we show how the bid-based model can be applied to help market participants optimize their decision making...

Petter L. Skantze; Marija D. Ilic

2001-01-01T23:59:59.000Z

200

Local energy management through mathematical modeling and optimization  

E-Print Network (OSTI)

(cont.) Extensions to the core TOTEM model include a demand charge model, used for making daily optimal control decisions when the electric bill includes a charge based on the monthly maximum power draw. The problem of ...

Craft David (David Loren), 1973-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Knowledge Management Based Cooperation for Energy Cost Optimization  

Science Journals Connector (OSTI)

The paper presents studies on the improvement and development of cooperation methods for cost optimization in power supply systems using polygeneration technology. A support for cooperating operators, which ar...

Dariusz Choinski; Radoslaw Dymek…

2013-01-01T23:59:59.000Z

202

Optimal control of investments for quality of supply improvement in electrical energy distribution networks  

Science Journals Connector (OSTI)

This paper considers the problem of deciding multi-period investments for maintenance and upgrade of electrical energy distribution networks. After describing the network as a constrained hybrid dynamical system, optimal control theory is applied to ... Keywords: Hybrid systems, Investment planning, Mixed-integer programming, Optimal control, Stochastic systems

A. Bemporad; D. Muńoz de la Peńa; P. Piazzesi

2006-08-01T23:59:59.000Z

203

PET: Reducing Database Energy Cost via Query Optimization  

E-Print Network (OSTI)

the potential of energy saving. However, the state-of-art architec- ture of DBMS does not take energy usage the existence of and study the energy-saving potential of many energy-efficient query plans. The database increase of energy cost in database services [3, 5]. Techniques such as hard- ware power-model control

Tu, Yicheng

204

A Simple Asymptotically Optimal Joint Energy Allocation and Routing Scheme in Rechargeable  

E-Print Network (OSTI)

of the optimum. Through simulations with replenishment profile traces for solar and wind energy, we numerically is limited battery of sensor nodes. Energy harvesting from various natural sources, such as solar1 A Simple Asymptotically Optimal Joint Energy Allocation and Routing Scheme in Rechargeable Sensor

Sinha, Prasun

205

Optimal Energy Consumption Scheduling Using Mechanism Design for the Future Smart Grid  

E-Print Network (OSTI)

Optimal Energy Consumption Scheduling Using Mechanism Design for the Future Smart Grid Pedram may need to collect various information about users and their energy consumption behavior, which can this problem, different programs have been proposed to shape the energy consumption pattern of the users

Wong, Vincent

206

Optimization of the Energy Efficiency of a Hybrid Broadcast/Unicast Network  

E-Print Network (OSTI)

of the potential energy gain brought by such a network. In this paper, using an enhanced version of the model- ated the potential gain of this solution from an energy point of view. By using a simple modelOptimization of the Energy Efficiency of a Hybrid Broadcast/Unicast Network Nicolas Cornillet

Boyer, Edmond

207

On Optimal Policies for Energy-Aware Servers Vincent J. Maccio  

E-Print Network (OSTI)

or lower energy state as turning the server on or off, respectively. Jobs arrive to the system accordingOn Optimal Policies for Energy-Aware Servers Vincent J. Maccio Department of Computing and Software of Computing and Software McMaster University Hamilton, Ontario Email downd@mcmaster.ca Abstract--As energy

Down, Doug

208

Cyber-Physical Systems for Optimal Energy Management Scheme of Autonomous Electric Vehicle  

Science Journals Connector (OSTI)

......consumption status and demand from AEV and charging...vehicle; energy management; event-based...the optimal energy management scheme for AEV with...of CPS for energy management framework (EMF...the consumption side to collect and analyze...consumption status and demand, and then make......

Jiafu Wan; Hehua Yan; Di Li; Keliang Zhou; Lu Zeng

2013-08-01T23:59:59.000Z

209

Joint Host-Network Optimization for Energy-Efficient Data Center Networking  

E-Print Network (OSTI)

; energy efficiency. I. INTRODUCTION Public and private data centers are becoming popular, since transport layer protocols, with TCP being the majority. The key for DCNs to achieve energy conservationJoint Host-Network Optimization for Energy-Efficient Data Center Networking Hao Jin, Tosmate

Pan, Deng

210

Energy-Optimizing Source Code Transformations for OS-driven Embedded Software  

E-Print Network (OSTI)

techniques achieve up to 37.9% (23.8% on an average) energy reduction compared to highly compiler- optimized hardware components for energy reduction, but also energy- efficient software design and compilation [1,anand€ @nec-lab.com Abstract The increasing software content of battery-powered embedded sys- tems has fueled

Fei, Yunsi

211

Optimal Sleep-Wake Scheduling for Energy Harvesting Smart Mobile Devices  

E-Print Network (OSTI)

manage- ment for sensor nodes, under the assumption that the harvested energy sOptimal Sleep-Wake Scheduling for Energy Harvesting Smart Mobile Devices Longbo Huang Institute capacity batteries and are capable of harvesting energy from the environment. Using a novel combination

Huang, Longbo

212

Risk-sensitive optimal switching and applications to district energy systems  

E-Print Network (OSTI)

. Cost optimisation of energy system assets has typically been carried out under the assumption of riskRisk-sensitive optimal switching and applications to district energy systems Jhonny Gonzalez School consideration. In a flexible energy system with cogeneration and heat storage, however, it is possible

Glendinning, Paul

213

Optimal Microcell Deployment for Effective Mobile Device Energy Saving in Heterogeneous Networks  

E-Print Network (OSTI)

1 Optimal Microcell Deployment for Effective Mobile Device Energy Saving in Heterogeneous Networks--Heterogeneous network (HetNet) [1] is considered as an energy efficient system structure to alleviate the problemNet energy efficiency has been conducted. However, most of them only consider power consumption of Base

Boyer, Edmond

214

Energy Conversion Unit with Optimized Waveform Generation Sally Sajadian and Euzeli C. dos Santos Jr.  

E-Print Network (OSTI)

Energy Conversion Unit with Optimized Waveform Generation Sally Sajadian and Euzeli C. dos Santos to increase the efficiency of the devices dealing with energy conversion. The power supplies devices able and interleaved converters. This paper proposes an energy conversion unit constituted by a single-phase DC

Zhou, Yaoqi

215

Concurrent Optimization of Consumer's Electrical Energy Bill and Producer's Power Generation Cost under a Dynamic Pricing  

E-Print Network (OSTI)

Concurrent Optimization of Consumer's Electrical Energy Bill and Producer's Power Generation Cost lower cost. I. INTRODUCTION There is no substitute for the status of electrical energy, which. Availability of affordable and sustainable electrical energy has been the key to prosperity and continued socio

Pedram, Massoud

216

Optimization of wind turbine energy and power factor with an evolutionary computation algorithm  

E-Print Network (OSTI)

Optimization of wind turbine energy and power factor with an evolutionary computation algorithm the energy capture from the wind and enhance the quality of the power produced by the wind turbine, and harmonic distortion. As the generation of wind energy on an industrial scale is relatively new, the area

Kusiak, Andrew

217

Free Flow Energy (TRL 1 2 3 Component)- Design and Development of a Cross-Platform Submersible Generator Optimized for the Conditions of Current Energy Conversion  

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

Free Flow Energy (TRL 1 2 3 Component) - Design and Development of a Cross-Platform Submersible Generator Optimized for the Conditions of Current Energy Conversion

218

A Framework for the Optimization of Integrated Energy Systems(Jain and  

Open Energy Info (EERE)

A Framework for the Optimization of Integrated Energy Systems(Jain and A Framework for the Optimization of Integrated Energy Systems(Jain and Alleyne 2012) Home > Groups > Energy Systems Integration Qinsun's picture Submitted by Qinsun(35) Member 15 November, 2012 - 13:19 Literature Review The author proposed a generalized, control-oriented, exergy-based objective function for optimizing the ESI. It was generalized form for ESI. The metric is suitable for power and thermal systems. It provide an objective modular. The method used in the paper was exergy and feedforward control It provided optimal control and generalized the objectives Groups: Energy Systems Integration Login to post comments Latest documents Qinsun Research topics related to ESI Posted: 15 Nov 2012 - 13:55 by Qinsun Qinsun Prospects for Nuclear Power(Davis 2012)

219

Multi-stage optimization of ultrabroadband high-energy optical parametric chirped pulse amplification  

E-Print Network (OSTI)

We present a procedure for simultaneous optimization of efficiency-bandwidth product and superfluorescence noise suppression in ultrabroadband high-energy optical parametric chirped pulse amplification. Gain dependence of ...

Manzoni, Cristian

220

Optimal Energy Management of Automotive Battery Systems Including Thermal Dynamics and Aging  

Science Journals Connector (OSTI)

Hybrid-electric vehicles (HEV) has been the subject of intensive research as a field of application of optimal control in the past decade. In particular, researchers have proven that energy management (or supe...

Antonio Sciarretta; Domenico di Domenico…

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Fast Energy Optimal Routing in Radio Networks Using Geometric Data Structures  

E-Print Network (OSTI)

often only limited energy reserves from batteries or power from solar panels, a prime optimization under contract number IST-1999-14186 (ALCOM-FT). 1 #12; recently gained considerable interest. We

Beier, René

222

Energy-optimal schedules of real-time jobs with hard deadlines  

E-Print Network (OSTI)

In this thesis, we develop algorithms that make optimal use of frequency scaling to schedule jobs with real??time requirements. Dynamic voltage scaling is a technique used to reduce energy consumption in wide variety of systems. Reducing supply...

George, John Vijoe

2005-11-01T23:59:59.000Z

223

Optimal Power Flow of Multiple Energy Carriers(Geidl and Andersson 2007) |  

Open Energy Info (EERE)

Optimal Power Flow of Multiple Energy Carriers(Geidl and Andersson 2007) Optimal Power Flow of Multiple Energy Carriers(Geidl and Andersson 2007) Home > Groups > Energy Systems Integration Qinsun's picture Submitted by Qinsun(35) Member 15 November, 2012 - 13:04 Literature Review The author proposed a linear static state model for multiple energy carriers. The optimal power flow and economic dispatch was determined. The method is a simple method of integrated system planning The methods used in the paper are linear deterministic system without control signal, optimal power flow and economic dispatch The proposed method stabilized the power grid, reduced the marginal cost of electricity, and increased the marginal cost of natural gas. The strength of the proposed method is following: 1. it is integrated; 2. it secures to converge;

224

Webinar: Building Energy Optimization Tool (BEopt)Training  

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

The U.S. Department of Energy Zero Energy Ready Home (ZERH) Program represents a whole new level of home performance, with rigorous requirements that ensure outstanding levels of energy savings,...

225

Automatic Calibration of a Building Energy Simulation Model Using a Global Optimization Program  

E-Print Network (OSTI)

optimization process minimizing the error between measured and simulated energy consumption. The ?measured? data used in this case was generated by the simulation program and will be referred to as synthetic measured data. The accuracy of calibration...). It is used to prove the possibility of automatic calibration through an optimization process. Synthetic ?data? was generated by the simulation program. This synthetic measured heating and cooling energy consumption data for the prototype building...

Lee, S. U.; Claridge, D.

2002-01-01T23:59:59.000Z

226

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Wednesday, 28 April 2010 00:00 Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

227

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Wednesday, 28 April 2010 00:00 Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

228

Optimal Real-time Dispatch for Integrated Energy Systems  

E-Print Network (OSTI)

xliii Demand Side Management152 Demand Side Managementdemand response demand-side management energy efficiency

Firestone, Ryan Michael

2007-01-01T23:59:59.000Z

229

Advanced Vacuum Clean Equipment Optimizer Ltd AVACO | Open Energy  

Open Energy Info (EERE)

Vacuum Clean Equipment Optimizer Ltd AVACO Vacuum Clean Equipment Optimizer Ltd AVACO Jump to: navigation, search Name Advanced Vacuum & Clean Equipment Optimizer Ltd (AVACO) Place Daegu, Daegu, Korea (Republic) Product Korean manufacturer of flat panel display equipments; makes sputtering equipment for cell manufacturing. Coordinates 35.88871°, 128.614868° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.88871,"lon":128.614868,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

230

Effect of Thermodynamic Restriction on Energy Cost Optimization of RO Membrane Water Desalination  

Science Journals Connector (OSTI)

Effect of Thermodynamic Restriction on Energy Cost Optimization of RO Membrane Water Desalination ... Reduction of the overall cost of water production represents a major challenge and, in the present work, various elements of water production cost are evaluated from the viewpoint of optimization, with respect to various costs (energy, membrane area and permeability, brine management, and pressure drop), as well as the important thermodynamic cross-flow constraint, utilization of energy recovery devices, and operational feed and permeate flow rate constraints. ... Overall, as process costs above energy costs are added, the operational point for achieving minimum water production cost shifts to higher recoveries. ...

Aihua Zhu; Panagiotis D. Christofides; Yoram Cohen

2008-08-29T23:59:59.000Z

231

Development of multiscale models for the performance of the gas and oil seals in rotary engines  

E-Print Network (OSTI)

Rotary engines offer higher power density, fewer parts and lower vibrations than conventional reciprocating piston engines. However, rotary engines are more difficult to seal because of the rotor shape which leads to higher ...

Picard, Mathieu

2014-01-01T23:59:59.000Z

232

Maximizing Thermal Efficiency and Optimizing Energy Management (Fact Sheet), Thermal Test Facility (TTF), NREL (National Renewable Energy Laboratory)  

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

Maximizing Thermal Efficiency and Maximizing Thermal Efficiency and Optimizing Energy Management Scientists at this living laboratory develop optimal solutions for managing energy flows within buildings and transportation systems. The built environment is stressing the utility grid to a greater degree than ever before. Growing demand for electric vehicles, space conditioning, and plug loads presents a critical opportunity for more effective energy management and development of efficiency technologies. Researchers at the Thermal Test Facility (TTF) on the campus of the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) in Golden, Colorado, are addressing this opportunity. Through analysis of efficient heating, ventilating, and air conditioning (HVAC) strategies, automated home energy management (AHEM), and energy storage systems,

233

Optimal allocation of stochastically dependent renewable energy based distributed generators in unbalanced distribution networks  

Science Journals Connector (OSTI)

Abstract This paper proposes an algorithm for modeling stochastically dependent renewable energy based distributed generators for the purpose of proper planning of unbalanced distribution networks. The proposed algorithm integrate the diagonal band Copula and sequential Monte Carlo method in order to accurately consider the multivariate stochastic dependence between wind power, photovoltaic power and the system demand. Secondly, an efficient algorithm based on modification of the traditional Big Bang-Big crunch method is proposed for optimal placement of renewable energy based distributed generators in the presence of dispatchable distributed generation. The proposed optimization algorithm aims to minimize the energy loss in unbalanced distribution systems by determining the optimal locations of non-dispatchable distributed generators and the optimal hourly power schedule of dispatchable distributed generators. The proposed algorithms are implemented in MATLAB environment and tested on the IEEE 37-node feeder. Several case studies are done and the subsequent discussions show the effectiveness of the proposed algorithms.

A.Y. Abdelaziz; Y.G. Hegazy; Walid El-Khattam; M.M. Othman

2015-01-01T23:59:59.000Z

234

Optimal supply air temperature with respect to energy use in a variable air volume system  

Science Journals Connector (OSTI)

In a variable air volume (VAV) system with 100% outdoor air, the cooling need in the building is satisfied with a certain air flow at a certain supply air temperature. To minimize the system energy use, an optimal supply air temperature can be set dependent on the load, specific fan power (SFP), chiller coefficient of performance, outdoor temperature and the outdoor relative humidity. The theory for an optimal supply air temperature is presented and the heating, ventilation and air-conditioning (HVAC) energy use is calculated depending on supply air temperature control strategy, average U-value of the building envelope and two outdoor climates. The analyses show that controlling the supply air temperature optimally results in a significantly lower HVAC energy use than with a constant supply air temperature. The optimal average U-value of the building envelope is in practise mostly zero.

Fredrik Engdahl; Dennis Johansson

2004-01-01T23:59:59.000Z

235

Dormitory Optimized Energy Performance using Spatial Archetypes Eleni Primikiri,  

E-Print Network (OSTI)

operational costs of HVAC systems in an existing building. 1. INTRODUCTION Over the past years, building takes into account basic design standards. More specifically, these standards include furniture standards. With the use of optimization, competing objectives were examined and in specific the building

Papalambros, Panos

236

Optimizing HVAC Control to Improve Building Comfort and Energy Performance  

E-Print Network (OSTI)

This paper demonstrates the benefits of optimal control in well-designed and operated buildings using a case study. The case study building was built in 2001. The HVAC and control systems have been installed with state-of-the-art equipment which...

Song, L.; Joo, I.; Dong, D.; Liu, M.; Wang, J.; Hansen, K.; Quiroz, L.; Swiatek, A.

2003-01-01T23:59:59.000Z

237

Optimization of Dispersed Energy Supply -Stochastic Programming with Recombining  

E-Print Network (OSTI)

cycle gas turbines may be used, which can start up within short time. Beyond the cover offshore development it could be up to 50 GW in 2030. Thereby, the sometimes strong and rapid fluctuations of a large city, the available electricity generating technologies, and the demand. The optimal load dispatch

Römisch, Werner

238

SPIRAL: JOINT RUNTIME AND ENERGY OPTIMIZATION OF LINEAR TRANSFORMS Marek Telgarsky, James C. Hoe, Jose M. F. Moura  

E-Print Network (OSTI)

Forbes Ave. Pittsburgh, PA 15232 ABSTRACT There is much interest into joint runtime and energy opti the optimiza- tion of energy and other joint runtime-energy optimization metrics. This research is supportedSPIRAL: JOINT RUNTIME AND ENERGY OPTIMIZATION OF LINEAR TRANSFORMS Marek Telgarsky, James C. Hoe

Moura, José

239

Wiring design based on Global Energy Requirement criteria: a first step towards optimization of DC distribution voltage  

E-Print Network (OSTI)

optimization methodology based on the primary energy environmental impact 2.1. The Global Energy RequirementWiring design based on Global Energy Requirement criteria: a first step towards optimization of DC. Introduction Nowadays, the global energy context leads to a need for the development of distributed Renewable

Paris-Sud XI, Université de

240

Three Case Studues of the Application of Energy Systems Optimization Best Prectices for Automatic Demand Response  

E-Print Network (OSTI)

Three Case Studies of the Application of Energy Systems Optimization Best Practices for Automatic Demand Response Yifu Shi Kelly Guiberteau Carlos Yagua, P.E. James Watt, P.E. Energy Systems Laboratory, Texas A&M University College.... INTRODUCTION The overall goal of the demand response program is to reduce facilities peak energy demand to reduce the cost of electricity for both Austin Energy and their customer. Reducing the demand mitigates the need to construct additional...

Shi, Y.; Guiberteau, K.; Yagua, C.; Watt, J.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Simulation and optimization of cogeneration power plant operation using an Energy Optimization Program  

E-Print Network (OSTI)

. . . . . . . . . . 44 Significance of the work General procedures. MAVM for boiler ?11 . . 44 . . 45 . . 46 V OPTIMIZATION ALGORITHM RESEARCH 75 Introduction Equal incremental cost load dispatching Example of equal incremental cost load dispatching...) equipment models. 90 90 91 VII CASE STUDIES . . . . . . 93 Case study I: Power plant operational cost savings potential evaluation . . . . . . 93 Case study 2: Impact of basic utility rates on power plant load dispatching . 97 VIII SUMMARY...

Zhou, Jijun

2001-01-01T23:59:59.000Z

242

DOE ZERH Webinar: Building Energy Optimization Tool (BEopt) Training  

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

The National Renewable Energy Laboratory (NREL) is DOE’s primary lab for renewable energy and efficiency R&D.  Through the Building America Program, NREL has developed free software to help...

243

Locally Optimal Source Routing for energy-efficient geographic routing  

Science Journals Connector (OSTI)

We analyze the problem of finding an energy-efficient path from a source node to a destination using geographic routing. ... destination than the current node can still reduce energy consumption by taking part in...

Juan A. Sanchez; Pedro M. Ruiz

2009-05-01T23:59:59.000Z

244

Optimization of cylindrical composite flywheel rotors for energy storage  

Science Journals Connector (OSTI)

We hope that our efforts will contribute towards the design of flywheel rotors that have higher energy densities and ... that this can contribute to a future electricity grid that can accommodate renewable energy...

Petrus J. Janse van Rensburg…

2013-01-01T23:59:59.000Z

245

IEEE INFOCOM 2002 1 Optimal Energy Allocation and Admission Control  

E-Print Network (OSTI)

, for the simple reason that energy efficiency in a satellite directly translates into cost savings. A satellite with lower energy requirements requires a smaller energy source (solar panel, reactor, etc.) and a lighter an economic benefit - a smaller launch vehicle might be selected, thus decreasing cost, or more maneuvering

Modiano, Eytan

246

Optimization of financial and energy structure of productive capital  

Science Journals Connector (OSTI)

......where the specific energy consumption is introduced...independent of the capital cost because different...various types of energy sources (renewable, non-traditional...5) without the energy factor was studied...the non-linear costs of installing new......

N. Hritonenko; Y. Yatsenko

2006-07-01T23:59:59.000Z

247

Results of no-flow rotary drill bit comparison testing  

SciTech Connect

This document describes the results of testing of a newer rotary sampling bit and sampler insert called the No-Flow System. This No-Flow System was tested side by side against the currently used rotary bit and sampler insert, called the Standard System. The two systems were tested using several ''hard to sample'' granular non-hazardous simulants to determine which could provide greater sample recovery. The No-Flow System measurably outperformed the Standard System in each of the tested simulants.

WITWER, K.S.

1998-11-30T23:59:59.000Z

248

Residential Energy Management system for optimization of on-site generation  

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

Residential Energy Management system for optimization of on-site generation Residential Energy Management system for optimization of on-site generation with HVAC Speaker(s): Ram Narayanamurthy Date: October 29, 2009 - 12:00pm Location: 90-3122 As the individual movements towards Net Zero Energy Homes (NZEH) and the SmartGrid converge on residential buildings, three major challenges need to be addressed: Flatten the highly peaked electric load profile of low energy homes Provide easy integration of energy efficiency into existing homes Provide builders and consumers with visibility into building operation, and ease of management. A Home Energy Management System (HEMS) owned by the consumer, capable of two way communications with Utility DR/SmartGrid/AMI is required to resolve these challenges. The HEMS will need to increase energy efficiency of building operations, provide consumers feedback and

249

A New Approach for Determining Optimal Air Compressor Location in A Manufacturing Facility to Increase Energy Efficiency  

E-Print Network (OSTI)

An approach is proposed to determine the optimal air compressor location in a manufacturing facility. The optimization strategy is based on an objective function that minimizes the total energy consumption of the air compressor -thereby decreasing...

Zahlan, J.; Avci, M.; Asfour, S.

2014-01-01T23:59:59.000Z

250

Use of Spatial Archetypes for Optimized Energy Performance  

E-Print Network (OSTI)

(American Society of Heating Refrigerating and Air-Conditioning Engineers) and geometric standards. INTRODUCTION Classification, Standardization, Archetypes Currently, it is quite evident that building simulations require specialized knowledge... was then designed optimally with respect to the chosen platform. Pareto Set Theory Nelson et al., also suggested a more generic formula for family product platforms as a multi- objective formulation: )(:min ],[ 21 pp xxx xf ppp K= (4) subject to...

Primikiri, E.; Kokkolaras, M.; Papalambros, P. Y.

2005-01-01T23:59:59.000Z

251

Surface Hopping Excited-State Dynamics Study of the Photoisomerization of a Light-Driven Fluorene Molecular Rotary Motor  

Science Journals Connector (OSTI)

Surface Hopping Excited-State Dynamics Study of the Photoisomerization of a Light-Driven Fluorene Molecular Rotary Motor ... The potential energy surfaces of the ground electronic state (S0) and the first singlet excited state (S1) are explored by semiempirical quantum-chemical calculations using the orthogonalization-corrected OM2 Hamiltonian in combination with a multireference configuration interaction (MRCI) treatment. ... Photoswitching of simple photochromic molecules attracts substantial attention because of its possible role in future photon-driven molecular electronics. ...

Andranik Kazaryan; Zhenggang Lan; Lars V. Schäfer; Walter Thiel; Michael Filatov

2011-05-24T23:59:59.000Z

252

Improvement of the Energy Resolution via an Optimized Digital Signal Processing in GERDA Phase I  

E-Print Network (OSTI)

An optimized digital shaping filter has been developed for the GERDA experiment which searches for neutrinoless double beta decay in 76Ge. The GERDA Phase I energy calibration data have been reprocessed and an average improvement of 0.3 keV in energy resolution (FWHM) at the 76Ge Q value for 0\

Agostini, M; Bakalyarov, A M; Balata, M; Barabanov, I; Barros, N; Baudis, L; Bauer, C; Becerici-Schmidt, N; Bellotti, E; Belogurov, S; Belyaev, S T; Benato, G; Bettini, A; Bezrukov, L; Bode, T; Borowicz, D; Brudanin, V; Brugnera, R; Budjáš, D; Caldwell, A; Cattadori, C; Chernogorov, A; D'Andrea, V; Demidova, E V; di Vacri, A; Domula, A; Doroshkevich, E; Egorov, V; Falkenstein, R; Fedorova, O; Freund, K; Frodyma, N; Gangapshev, A; Garfagnini, A; Grabmayr, P; Gurentsov, V; Gusev, K; Hegai, A; Heisel, M; Hemmer, S; Heusser, G; Hofmann, W; Hult, M; Inzhechik, L V; Csáthy, J Janicskó; Jochum, J; Junker, M; Kazalov, V; Kihm, T; Kirpichnikov, I V; Kirsch, A; Klimenko, A; Knöpfle, K T; Kochetov, O; Kornoukhov, V N; Kuzminov, V V; Laubenstein, M; Lazzaro, A; Lebedev, V I; Lehnert, B; Liao, H Y; Lindner, M; Lippi, I; Lubashevskiy, A; Lubsandorzhiev, B; Lutter, G; Macolino, C; Majorovits, B; Maneschg, W; Medinaceli, E; Misiaszek, M; Moseev, P; Nemchenok, I; Palioselitis, D; Panas, K; Pandola, L; Pelczar, K; Pullia, A; Riboldi, S; Rumyantseva, N; Sada, C; Salathe, M; Schmitt, C; Schneider, B; Schönert, S; Schreiner, J; Schütz, A -K; Schulz, O; Schwingenheuer, B; Selivanenko, O; Shirchenko, M; Simgen, H; Smolnikov, A; Stanco, L; Stepaniuk, M; Ur, C A; Vanhoefer, L; Vasenko, A A; Veresnikova, A; von Sturm, K; Wagner, V; Walter, M; Wegmann, A; Wester, T; Wilsenach, H; Wojcik, M; Yanovich, E; Zavarise, P; Zhitnikov, I; Zhukov, S V; Zinatulina, D; Zuber, K; Zuzel, G

2015-01-01T23:59:59.000Z

253

Representing Energy Price Variability in Long-and Medium-term Hydropower Optimization  

E-Print Network (OSTI)

, 2002). The output of each hydropower plant is usually small relative to the overall energy market1 Representing Energy Price Variability in Long- and Medium- term Hydropower Optimization Marcelo A Department of Civil and Environmental Engineering, University of California, Davis, USA Journal of Water

Pasternack, Gregory B.

254

Optimal Design of Remote Terminal Unit (RTU) for Wireless SCADA System for Energy Management  

Science Journals Connector (OSTI)

For energy deficit countries, the design of Supervisory Control and Data Acquisition (SCADA) based energy management systems for optimal distribution is of high interest. Such design involves development of Remote Terminal Unit (RTU) which is considered ... Keywords: Field Programmable Gate Array (FPGA), Programmable Logic Controller (PLC), Remote Terminal Unit (RTU), Supervisory Control and Data Acquisition (SCADA), Tele-Control Interface (TCI), Wireless Communication

Muhammad Aamir; Javier Poncela; Muhammad Aslam Uqaili; B. S. Chowdhry; Nishat Ahmad Khan

2013-04-01T23:59:59.000Z

255

Division of IT Convergence Engineering Optimal Demand-Side Energy Management Under  

E-Print Network (OSTI)

Division of IT Convergence Engineering Optimal Demand-Side Energy Management Under Real-time Demand and wastage through better demand-side management and control is considered a key solution ingredient of appliance specific adapters. Designed and implemented GHS Modeled the demand-side energy management

Boutaba, Raouf

256

Sensor Network Lifetime Maximization Via Sensor Energy Balancing: Construction and Optimal Scheduling of Sensor Trees  

E-Print Network (OSTI)

in such a way that the total energy usage of the active sensor nodes in the tree is minimized. However whenSensor Network Lifetime Maximization Via Sensor Energy Balancing: Construction and Optimal Scheduling of Sensor Trees Ling Shi , Agostino Capponi , Karl H. Johansson and Richard M. Murray Abstract

Johansson, Karl Henrik

257

Optimized Pump Systems Save Coal Preparation Plant Money and Energy  

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

This case study describes how Peabody Holding Company was able to improve the performance of a coal slurry pumping system at its Randolph Coal Preparation plant. Using a systematic approach, three energy-saving opportunities were identified involving the motor, belt drive, and pump components of the pumping system. The modifications saved 87,184 kWh of electricity, equivalent to $5,231 in annual energy cost savings, and overall energy consumption of the pumping system decreased by approximately 15 percent.

258

Determining Optimal Locations for New Wind Energy Development in Iowa.  

E-Print Network (OSTI)

??The purpose of this research is to generate the most accurate model possible for predicting locations most suitable for new wind energy development using a… (more)

Mann, David

2011-01-01T23:59:59.000Z

259

Optimization Online - Radio Planning of Energy-Aware Cellular ...  

E-Print Network (OSTI)

Nov 3, 2010 ... Some energy-aware models and approaches have already been ... Keywords: green networking, wireless, network design, coverage, network ...

Silvia Boiardi

2010-11-03T23:59:59.000Z

260

Globally Resource-Optimized and Energy-Efficient Networks (“GREEN”)  

Science Journals Connector (OSTI)

The explosive development of the ICT (Information and Communication Technology) Industry has emerged as one of the major sources of world energy consumption. In ...

Niu, Zhisheng

Note: This page contains sample records for the topic "optimized rotary energy" 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

dlCC Opt: Optimization Software for Renewable Energy Projects...  

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

indicators of project opportunities. Many existing programs require the user to enter the size (kW) of the renewable energy system in order to start calculations. However,...

262

Hybrid renewable energy systems optimization based on artificial intelligence.  

E-Print Network (OSTI)

??In remote regions, electric energy is usually supplied by diesel generators for their reliability, low installation costs, ease of starting, compact power density and portability.… (more)

Berrazouane, Sofiane

2014-01-01T23:59:59.000Z

263

Optimal investment and scheduling of distributed energy resources with uncertainty in electric vehicles driving schedules  

SciTech Connect

The large scale penetration of electric vehicles (EVs) will introduce technical challenges to the distribution grid, but also carries the potential for vehicle-to-grid services. Namely, if available in large enough numbers, EVs can be used as a distributed energy resource (DER) and their presence can influence optimal DER investment and scheduling decisions in microgrids. In this work, a novel EV fleet aggregator model is introduced in a stochastic formulation of DER-CAM [1], an optimization tool used to address DER investment and scheduling problems. This is used to assess the impact of EV interconnections on optimal DER solutions considering uncertainty in EV driving schedules. Optimization results indicate that EVs can have a significant impact on DER investments, particularly if considering short payback periods. Furthermore, results suggest that uncertainty in driving schedules carries little significance to total energy costs, which is corroborated by results obtained using the stochastic formulation of the problem.

Center for Energy and Innovative Technologies; NEC Laboratories America Inc.; Cardoso, Goncalo; Stadler, Michael; Bozchalui, Mohammed C.; Sharma, Ratnesh; Marnay, Chris; Barbosa-Povoa, Ana; Ferrao, Paulo

2013-10-27T23:59:59.000Z

264

"Are Distributed Energy Systems Optimal In India?" Narayanan Komerath  

E-Print Network (OSTI)

efficiency, their effectiveness as the elements of a national energy architecture is obvious. The point is to understand the key numbers and issues of the Indian primary energy market, the reasons and constraints partial "miracle cure" that may be embraced by a large part of the Indian population. ARE DISTRIBUTED

265

Building Energy Optimization Analysis Method (BEopt)- Building America Top Innovation  

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

This Building America Innovations profile describes the DOE-sponsored BEopt software, which ensures a consistent analysis platform and accurate simulations. Many BEopt algorithms have been adopted by private-sector HERS software tools that have helped improve the energy efficiency of tens-of-thousands of ENERGY STAR-certified homes.

266

Micro-grid energy dispatch optimization and predictive control algorithms; A UC Irvine case study  

Science Journals Connector (OSTI)

Abstract Distributed power and energy resources are now being used to meet the combined electric power, heating, and cooling demands of many buildings. The addition of on-site renewables and their accompanying intermittency and non-coincidence requires even greater dynamic performance from the distributed power and energy system. Load following generators, energy storage devices, and predictive energy management are increasingly important to achieve the simultaneous goals of increased efficiency, reduced emissions, and sustainable economics. This paper presents two optimization strategies for the dispatch of a multi-chiller cooling plant with cold-water thermal storage. The optimizations aim to reduce both costs and emissions while considering real operational constraints of a plant. The UC Irvine campus micro-grid operation between January 2009 and December 2013 serves as a case study for how improved utilization of energy storage can buffer demand transients, reduce costs and improve plant efficiency. A predictive control strategy which forecasts campus demands from weather predictions, optimizes the plant dispatch, and applies feedback control to modify the plant dispatch in real-time is compared to best-practices manual operation. The dispatch optimization and predictive control algorithms are shown to reduce annual utility bill costs by 12.0%, net energy costs by 3.61%, and improve energy efficiency by 1.56%.

Dustin McLarty; Carles Civit Sabate; Jack Brouwer; Faryar Jabbari

2015-01-01T23:59:59.000Z

267

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

268

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

269

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

270

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

271

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

272

ATP Synthase: Two rotary molecular motors working together  

E-Print Network (OSTI)

1 ATP Synthase: Two rotary molecular motors working together George Oster Hongyun Wang University of California, Berkeley Introduction ATP synthaseĂ?also called FoF1 ATPase, or simply F-ATPaseĂ?is the universal protein that terminates oxidative phosphorylation by synthesizing ATP from ADP and phosphate. Nearly

Wang, Hongyun

273

Micro rotary machine and methods for using same  

DOE Patents (OSTI)

A micro rotary machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft comprises a horizontal shaft and is operable to be rotated by the micro actuator. A micro tool is coupled to the micro shaft and is operable to perform work in response to motion of the micro shaft.

Stalford, Harold L. (Norman, OK)

2012-04-17T23:59:59.000Z

274

Rotary Pipeline Processors Simon Moore, Peter Robinson, Steve Wilcox  

E-Print Network (OSTI)

DRAFT Rotary Pipeline Processors Simon Moore, Peter Robinson, Steve Wilcox Computer Laboratory pipeline processor is a new architecture for su- perscalar computing. It is based on a simple and regular pipeline structure which can support several ALUs for effi- cient dispatching of multiple instructions

Moore, Simon

275

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

276

NRELs Renewable Energy Optimization (REopt) Tool: Models & Tools (Fact Sheet), NREL (National Renewable Energy Laboratory)  

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

m o d e l s & t o o l s NREL's Renewable Energy Optimization (REopt) Tool NREL's REopt tool is an early screening tool that identifies and prioritizes renewable energy (RE) projects at a single site, or across a portfolio of geographically dispersed sites, to meet agency goals. Key Features * Optimization. REopt considers RE resources, energy rates, and utility policies to identify the most cost-effective technologies to meet energy goals. * Integration. REopt simultaneously models the complex hourly interactions of multiple thermal and electric RE technologies, along with conventional energy sources. * Low cost. REopt provides a quick and low-cost method to identify the most economically and technically viable technologies for further study.

277

Reducing Building Energy Costs Using Optimized Operation Strategies for Constant Volume Air Handling Systems  

E-Print Network (OSTI)

SDCVP 67.380 $153.200 $41.800 $195.000 $2.89 measured energy consumption for each building. The horizontal axis is the ambient temperature. The venical axis is the average daily energy consumption in MMBtulhr. Figure 5 compares the predicted...REDUCING BUILDING ENERGY COSTS USING OPTIMIZED OPERATION STRATEGIES FOR CONSTANT VOLUME AIR HANDLING SYSTEMS Mingsheng Liu, her Atha, Agarni Reddy Ed White David Claridge and Jeff Haberl Department of Physical Plant Texas A&M University...

Liu, M.; Athar, A.; Reddy, A.; Claridge, D. E.; Haberl, J. S.; White, E.

1994-01-01T23:59:59.000Z

278

IEEE TRANS. AUTOM. CONTROL, SPECIAL ISSUE ON WIRELESS SENSOR AND ACTUATOR NETWORKS 1 Energy Optimized Topologies for Distributed  

E-Print Network (OSTI)

. We formulate the combinatorial optimization problem of selecting such a minimal energy tree that yield energy efficient bidirectional span- ning trees and establish associated bounds on the optimalIEEE TRANS. AUTOM. CONTROL, SPECIAL ISSUE ON WIRELESS SENSOR AND ACTUATOR NETWORKS 1 Energy

279

Optimal design and operation of energy polygeneration systems  

E-Print Network (OSTI)

Polygeneration is a concept where multiple energy products are generated in a single plant by tightly integrating multiple processes into one system. Compared to conventional single-product systems, polygeneration systems ...

Chen, Yang, Ph. D. Massachusetts Institute of Technology. Department of Chemical Engineering

2013-01-01T23:59:59.000Z

280

Kansas City Power and Light- Energy Optimizer Programmable Thermostat Program  

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

Kansas City Power and Light (KCP&L) offers a free Honeywell programmable thermostat, worth $300, and free installation to qualifying customers to manage energy usage. Only residential and small...

Note: This page contains sample records for the topic "optimized rotary energy" 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

Applications of Optimal Building Energy System Selection and Operation  

E-Print Network (OSTI)

direct control of the solar-assisted heating ventilation and5]. And 4. , the solar-assisted heating ventilation and airPerformance of a Solar-Thermal-Assisted HVAC System,” Energy

Marnay, Chris

2014-01-01T23:59:59.000Z

282

Optimization of Oxygen Purity for Coal Conversion Energy Reduction  

E-Print Network (OSTI)

The conversion of coal into gaseous and liquid fuels and chemical feedstock will require large quantities of oxygen. This oxygen will be produced in large multi-train air separation plants which will consume about 350 kilowatt hours of energy...

Baker, C. R.; Pike, R. A.

1982-01-01T23:59:59.000Z

283

Process Control on Workplace Level - User Comfort Energy Optimalization  

E-Print Network (OSTI)

Utility building developments in the near future face two mayor challenges. These challenges are closely related. The first one is the pressure to reduce the amount of energy needed to acclimatize the building and the second is to increase...

Verhaart, J.; Zeiler, W.; Boxem, G.

2013-01-01T23:59:59.000Z

284

Optimizing Process Loads in Industrial Cogeneration Energy Systems  

E-Print Network (OSTI)

applied to power generation and industrial cogeneration are extended to solving this trigeneration problem where the optimum dispatch of the final load devices (i.e. compressors, fans, pumps, etc.) are an integral part of the total energy system...-04-29 Proceedings from the Seventeenth Industrial Energy Technology Conference, Houston, TX, April 5-6, 1995 optimum dispatch solutions, and an iterative simultaneous solution of the integrated system is required. The solution dependency arises when the end use...

Ahner, D. J.; Babson, P. E.

285

Design and optimization of solid thermal energy storage modules for solar thermal power plant applications  

Science Journals Connector (OSTI)

Abstract Solid sensible heat storage is an attractive option for high-temperature storage applications in terms of investment and maintenance costs. Typical solid thermal energy storage systems use a heat transfer fluid to exchange heat as the fluid flows through a tubular heat exchanger embedded in the solid storage material. The modified lumped capacitance method is used with an effective heat transfer coefficient in a simplified analysis of the heat transfer in solid thermal energy storage systems for a solid cylindrical heat storage unit. The analytical solution was found using the Laplace transform method. The solution was then used to develop an optimization method for designing solid storage modules which uses the system requirements (released energy and fluid outlet temperature) as the constraint conditions and the storage module cost as the objective function for the optimization. Optimized results are then given for many kinds of system configurations.

Yongfang Jian; Quentin Falcoz; Pierre Neveu; Fengwu Bai; Yan Wang; Zhifeng Wang

2015-01-01T23:59:59.000Z

286

Wide and multiple apex seals for the rotary engine: (Abbr.: Multi-Apex-Seals for the Rotary Engine)  

Science Journals Connector (OSTI)

Abstract Conventional rotary engines are based on a trochoidal-type housing bore profile and its inside envelope is the basis of the rotor profile. To seal the chambers, spring-loaded apex seals are used in place of the designed rotor apexes. The conventional design method is limited to an epitrochoidal-based housing and does not consider the apex seal profile. Previously the authors presented the complete theory and algorithm of the deviation-function (DF) method of rotary engine design based on the apex seal profile. By using the DF method, the apex seal and engine housing bore are conjugate kinematic pairs, which enable the design of a variety of apex seals that conform to the bore, including wider apex seals and multiple seals at each rotor apex. The wide apex seal design has better rotor-to-housing conformity and therefore improves sealing. The multi-apex-seal grid assembly improves sealing capability and also reduces the forces on the apex seals. The incorporation of apex seal profiles into the rotary engine design process also makes possible a larger variety of new rotary engine profiles.

Sarah Warren Rose; Daniel C.H. Yang

2014-01-01T23:59:59.000Z

287

Optimizing Radiation Protection of the Public and the Environment at the Department of Energy  

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

Optimizing Radiation Protection of the Public and the Environment at the Department of Energy (DOE), ALARA at DOE Derek Favret*, U.S. Department of Energy ; Edward Regnier, U.S. Department of Energy; Andrew Wallo, U.S. Department of Energy Abstract: The Department of Energy is drafting a handbook to assist program and field offices in understanding what is necessary and acceptable for implementing the As Low As Reasonably Achievable (ALARA) provisions of DOE Order 458.1, Radiation Protection of the Public and Environment. The handbook identifies the goals, requirements and issues that should be addressed in an ALARA process and reviews past case studies from throughout the department to further assist in implementing this process. Utilization of the ALARA process ensures optimization techniques are integrated into the design and analyses of programmatic options to support DOE’s diverse missions and protect the public and the environment.

288

Development of a Rotary Micro-filter for Radioactive Waste Applications  

SciTech Connect

The processing rates of Savannah River Site (SRS) high-level waste decontamination processes are limited by the flow rate of the solid-liquid separation. The baseline process, using a 0.1 micron cross-flow filter, produces {approx}1.36 x 10{sup -5} m/s ({approx}0.02 gpm/ft{sup 2}) of filtrate under expected operating conditions. Savannah River National Laboratory (SRNL) demonstrated significantly higher filter flux for actual waste samples using a small-scale rotary filter. With funding from the U. S. Department of Energy Office of Cleanup Technology, SRNL personnel are evaluating and developing the rotary micro-filter for radioactive service at SRS. The authors improved the design for the disks and filter unit to make them suitable for high-level radioactive service. They procured two units using the new design, tested them with simulated SRS wastes, and evaluated the operation of the units. Work to date provides the following conclusions and program status. - The authors modified the design of the filter disks to remove epoxy and Ryton{sup R}. The new design includes welding both stainless steel and ceramic coated stainless steel filter media to a stainless steel support plate. The welded disks were tested in the full-scale unit. They showed good reliability and met filtrate quality requirements. - The authors modified the design of the unit, making installation and removal easier. The new design uses a modular, one-piece filter stack that is removed simply by disassembly of a flange on the upper (inlet) side of the filter housing. All seals and rotary unions are contained within the removable stack. - While it is extremely difficult to predict the life of the seal, the vendor representative indicates a minimum of one year in present service conditions is reasonable. Changing the seal face material from silicon-carbide to a graphite-impregnated silicon-carbide is expected to double the life of the seal. Replacement of the current seal with an air seal could increase the lifetime to 5 years and is undergoing testing in the current work. - The bottom bushing showed wear due to a misalignment during the manufacture of the filter tank. Replacing the graphite bushing with a more wear resistant material such as a carbide material will increase the lifetime of the bushing. This replacement requires a more wear resistant part or coating to prevent excessive wear of the shaft. The authors are currently conducting testing with the more wear resistant bushing. - The project team plans to use the rotary micro-filter as a filter in advance of an ion exchange process under development for potential deployment in SRS waste tank risers. (authors)

Poirier, M.R.; Herman, D.T.; Fink, S.D. [Savannah River National Laboratory, Aiken, SC (United States)

2008-07-01T23:59:59.000Z

289

Energy Efficiency Improvement and Cost Saving Opportunities for the Fruit and Vegetable Processing Industry. An ENERGY STAR Guide for Energy and Plant Managers  

E-Print Network (OSTI)

typically using centrifugal compressors or turbo fans) andapplied to centrifugal and rotary screw compressors. At thecompressor fan energy use by up to 50% compared to centrifugal

Masanet, Eric

2008-01-01T23:59:59.000Z

290

Experimental investigations to optimize the utilization of energy resources  

Science Journals Connector (OSTI)

In world more than 65% of non-renewable fuels are consumed by thermal, gas, nuclear, diesel power plants and process industries. They emit huge amount of pollutants and skew up large quantities of ash in to environment causing pollution and lead to adverse ... Keywords: energy, environment, management, resources, safety

Gurumurthy Vijayan Iyer; Nikos E. Mastorakis

2006-06-01T23:59:59.000Z

291

Prospects for Combining Energy and Environmental Objectives in Hydropower Optimization Brennan T. Smith and Henriette I. Jager  

E-Print Network (OSTI)

1 Prospects for Combining Energy and Environmental Objectives in Hydropower Optimization Brennan T, we review studies that derived rules for hydropower operation by solving optimization problems driven be compatible with hydropower optimization. Given the increasing value placed on the ecological sustainability

Jager, Henriette I.

292

A new energy optimizing control strategy for switched reluctance motors  

SciTech Connect

This paper describes a new and machine-independent method to minimize the energy consumption of a speed controlled Switched Reluctance Motor (SRM). The control strategy is to vary the duty cycle of the applied dc voltage in order to obtain the desired speed quickly and when operating in steady-state vary the turn-on angle ({alpha}{sub on}) of the phase voltage to minimize the energy consumption. The power flow is measured in the dc-link and used to control the turn-on angle. Simulations carried out on a three-phase 6/4 pole SRM justify the algorithm and the physical implementation in a Siemens SAB 80C517A microcontroller is described. Measurements on two different load systems show it is possible to minimize the energy consumption on-line in a speed controlled Switched Reluctance Motor without losing the dynamic performance. A comparison with an ordinary mode-shift controlled SRM shows more than an 8% increase in overall efficiency for some operation points. The algorithm is fully applicable to other Switched Reluctance Motors at other power levels or with other pole configurations.

Kjaer, P.C. [Univ. of Glasgow (United Kingdom)] [Univ. of Glasgow (United Kingdom); Nielsen, P. [Danfoss A/S, Graasten (Denmark). Transmission Div.] [Danfoss A/S, Graasten (Denmark). Transmission Div.; Andersen, L. [Nilfisk A/S, Broendby (Denmark)] [Nilfisk A/S, Broendby (Denmark); Blaabjerg, F. [Aalborg Univ. (Denmark)] [Aalborg Univ. (Denmark)

1995-09-01T23:59:59.000Z

293

Thermal modeling of core sampling in flammable gas waste tanks. Part 2: Rotary-mode sampling  

SciTech Connect

The radioactive waste stored in underground storage tanks at Hanford site includes mixtures of sodium nitrate and sodium nitrite with organic compounds. The waste can produce undesired violent exothermic reactions when heated locally during the rotary-mode sampling. Experiments are performed varying the downward force at a maximum rotational speed of 55 rpm and minimum nitrogen purge flow of 30 scfm. The rotary drill bit teeth-face temperatures are measured. The waste is simulated with a low thermal conductivity hard material, pumice blocks. A torque meter is used to determine the energy provided to the drill string. The exhaust air-chip temperature as well as drill string and drill bit temperatures and other key operating parameters were recorded. A two-dimensional thermal model is developed. The safe operating conditions were determined for normal operating conditions. A downward force of 750 at 55 rpm and 30 scfm nitrogen purge flow was found to yield acceptable substrate temperatures. The model predicted experimental results reasonably well. Therefore, it could be used to simulate abnormal conditions to develop procedures for safe operations.

Unal, C.; Poston, D.; Pasamehmetoglu, K.O. [Los Alamos National Lab., NM (United States). Nuclear Systems Design and Analysis Group; Witwer, K.S. [Westinghouse Hanford Co., Richland, WA (United States). Engineering Testing Lab.

1997-08-01T23:59:59.000Z

294

“Energy Tower” combined with pumped storage and desalination: Optimal design and analysis  

Science Journals Connector (OSTI)

The “Energy Tower” (ET) is a power plant project which uses hot dry air and seawater to produce electricity. An optimized design of a system that is a combination of an ET, pumped storage and seawater desalination plant is considered. A model set covering each subsystem, and results of the optimized design for a project in the area of Eilat are presented. The additional benefit from combining the systems comes from an efficient use of the energy in the brine water coming from the desalination process, and from using pumped storage in an unconventional way. The benefits of the combined system lead to an increase of 14% in the annual net profit, compared to the sum of profits from optimally designed stand-alone systems.

E. Omer; R. Guetta; I. Ioslovich; P.O. Gutman; M. Borshchevsky

2008-01-01T23:59:59.000Z

295

Multiobjective Optimization of Pharmacophore Hypotheses: Bias Toward Low-Energy Conformations  

Science Journals Connector (OSTI)

Multiobjective Optimization of Pharmacophore Hypotheses: Bias Toward Low-Energy Conformations ... Our aim, therefore, is to generate a series of plausible pharmacophore hypotheses that represent different trade-offs in the goodness of the alignment and the conformational energies of the molecules. ... The DHFR molecules each have a pair of fused aromatic rings which contain a constellation of two hydrogen-bond donors (D1, D2 in Figure 2) and two acceptors (A1, A2). ...

Eleanor J. Gardiner; David A. Cosgrove; Robin Taylor; Valerie J. Gillet

2009-11-12T23:59:59.000Z

296

Optimal Sizing of Energy Storage and Photovoltaic Power Systems for Demand Charge Mitigation (Poster)  

SciTech Connect

Commercial facility utility bills are often a strong function of demand charges -- a fee proportional to peak power demand rather than total energy consumed. In some instances, demand charges can constitute more than 50% of a commercial customer's monthly electricity cost. While installation of behind-the-meter solar power generation decreases energy costs, its variability makes it likely to leave the peak load -- and thereby demand charges -- unaffected. This then makes demand charges an even larger fraction of remaining electricity costs. Adding controllable behind-the-meter energy storage can more predictably affect building peak demand, thus reducing electricity costs. Due to the high cost of energy storage technology, the size and operation of an energy storage system providing demand charge management (DCM) service must be optimized to yield a positive return on investment (ROI). The peak demand reduction achievable with an energy storage system depends heavily on a facility's load profile, so the optimal configuration will be specific to both the customer and the amount of installed solar power capacity. We explore the sensitivity of DCM value to the power and energy levels of installed solar power and energy storage systems. An optimal peak load reduction control algorithm for energy storage systems will be introduced and applied to historic solar power data and meter load data from multiple facilities for a broad range of energy storage system configurations. For each scenario, the peak load reduction and electricity cost savings will be computed. From this, we will identify a favorable energy storage system configuration that maximizes ROI.

Neubauer, J.; Simpson, M.

2013-10-01T23:59:59.000Z

297

Maximizing Lifetime in an Energy Constrained Wireless Sensor Array Using Team Optimization  

E-Print Network (OSTI)

Maximizing Lifetime in an Energy Constrained Wireless Sensor Array Using Team Optimization or using intermediate hop nodes. For a given node constellation, there ex- ist many wireless connection trees to do this. For a known node constellation, the maximum lifetime of a single tree is equal

Arabshahi, Payman

298

Optimal Design and Management of a Smart Residential PV and Energy Storage System  

E-Print Network (OSTI)

. However, the home owners are not yet convinced of the saving cost benefits of this technologyOptimal Design and Management of a Smart Residential PV and Energy Storage System Di Zhu, Yanzhi University, Korea {dizhu, yanzhiwa, pedram}@usc.edu, naehyuck@elpl.snu.ac.kr Abstract-- Solar photovoltaic

Pedram, Massoud

299

CAD Technique for Microwave Chemistry Reactors with Energy Efficiency Optimized for Different Reactants  

E-Print Network (OSTI)

CAD Technique for Microwave Chemistry Reactors with Energy Efficiency Optimized for Different in experimental development of large- scale and highly-productive reactors. This paper proposes to address this issue by developing microwave chemistry reactors as microwave systems, rather than as black

Yakovlev, Vadim

300

PASI 2011: Process Modeling and Optimization for Energy and Sustainability Mineral Process Design for  

E-Print Network (OSTI)

PASI 2011 PASI 2011: Process Modeling and Optimization for Energy and Sustainability Mineral, high population growth and urbanization, both key metals consumption and GDP are expected to grow the environmental impact, both in per tonne of product and on total amount of emissions and reduction. #12

Grossmann, Ignacio E.

Note: This page contains sample records for the topic "optimized rotary energy" 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

Models for Optimization of Energy Consumption of Pumps in a Wastewater Processing Plant  

E-Print Network (OSTI)

Models for Optimization of Energy Consumption of Pumps in a Wastewater Processing Plant Zijun Zhang in the wastewater preliminary treatment process is discussed. Data- mining algorithms are utilized to develop pump performance models based on industrial data collected at a municipal wastewater processing plant

Kusiak, Andrew

302

Optimal Indoor Air Temperature Considering Energy Savings and Thermal Comfort in the Shanghai Area  

E-Print Network (OSTI)

as possible in winter. Meanwhile, indoor thermal comfort should be considered. This paper will establish the optimal indoor air temperature for an air-conditioning system aiming at both energy savings and thermal comfort in the Shanghai area, based on the PMV...

Yao, Y.; Lian, Z.; Hou, Z.; Liu, W.

2006-01-01T23:59:59.000Z

303

Design optimization of a fuzzy distributed generation (DG) system with multiple renewable energy sources  

Science Journals Connector (OSTI)

The global rise in energy demands brings major obstacles to many energy organizations in providing adequate energy supply. Hence many techniques to generate cost effective reliable and environmentally friendly alternative energy source are being explored. One such method is the integration of photovoltaic cells wind turbine generators and fuel-based generators included with storage batteries. This sort of power systems are known as distributed generation (DG) power system. However the application of DG power systems raise certain issues such as cost effectiveness environmental impact and reliability. The modelling as well as the optimization of this DG power system was successfully performed in the previous work using Particle Swarm Optimization (PSO). The central idea of that work was to minimize cost minimize emissions and maximize reliability (multi-objective (MO) setting) with respect to the power balance and design requirements. In this work we introduce a fuzzy model that takes into account the uncertain nature of certain variables in the DG system which are dependent on the weather conditions (such as; the insolation and wind speed profiles). The MO optimization in a fuzzy environment was performed by applying the Hopfield Recurrent Neural Network (HNN). Analysis on the optimized results was then carried out.

2012-01-01T23:59:59.000Z

304

Regionalized LCA-Based Optimization of Building Energy Supply: Method and Case Study for a Swiss Municipality  

Science Journals Connector (OSTI)

Regionalized LCA-Based Optimization of Building Energy Supply: Method and Case Study for a Swiss Municipality ... This paper presents a regionalized LCA-based multiobjective optimization model of building energy demand and supply for the case of a Swiss municipality for the minimization of greenhouse gas emissions and particulate matter formation. ... A suitable method for such analyses is life cycle assessment (LCA). ...

Dominik Saner; Carl Vadenbo; Bernhard Steubing; Stefanie Hellweg

2014-05-27T23:59:59.000Z

305

Utility Accrual Real-Time Scheduling with Energy Bounds In this paper, we consider timeliness and energy optimization in battery-powered, dynamic  

E-Print Network (OSTI)

. An important technique used for optimizing the energy consumption of real-time embedded systems is dynamic in the physical world). Further, they are energy-critical, as they must operate on battery, with finite energy and minimizing the system's energy consumption, and not just the CPU's energy consumption. Moreover, such systems

Ravindran, Binoy

306

BEopt(TM) Software for Building Energy Optimization: Features and Capabilities  

SciTech Connect

BEopt is a computer program designed to find optimal building designs along the path to ZNE. A user selects from predefined options in various categories to specify options to be considered in the optimization. Energy savings are calculated relative to a reference. The reference can be either a user-defined base-case building or a climate-specific Building America Benchmark building automatically generated by BEopt. The user can also review and modify detailed information on all available options in a linked options library spreadsheet. BEopt calls the DOE2 and TRNSYS simulation engines and uses a sequential search technique to automate the process of identifying optimal building designs along the path to ZNE. BEopt finds these optimal and near-optimal designs based on discrete building options reflecting realistic construction options. BEopt handles special situations with positive or negative interactions between options in different categories. The BEopt software includes a results browser that allows the user to navigate among different design points and retrieve detailed results regarding energy end-use and option costs in different categories. Multiple cases, based on a selected parameter such as climate, can be included in a BEopt project file for comparative purposes.

Christensen, C.; Anderson, R.; Horowitz, S.; Courtney, A.; Spencer, J.

2006-08-01T23:59:59.000Z

307

A system-level cost-of-energy wind farm layout optimization with landowner modeling  

SciTech Connect

This work applies an enhanced levelized wind farm cost model, including landowner remittance fees, to determine optimal turbine placements under three landowner participation scenarios and two land-plot shapes. Instead of assuming a continuous piece of land is available for the wind farm construction, as in most layout optimizations, the problem formulation represents landowner participation scenarios as a binary string variable, along with the number of turbines. The cost parameters and model are a combination of models from the National Renewable Energy Laboratory (NREL), Lawrence Berkeley National Laboratory, and Windustiy. The system-level cost-of-energy (COE) optimization model is also tested under two land-plot shapes: equally-sized square land plots and unequal rectangle land plots. The optimal COEs results are compared to actual COE data and found to be realistic. The results show that landowner remittances account for approximately 10% of farm operating costs across all cases. Irregular land-plot shapes are easily handled by the model. We find that larger land plots do not necessarily receive higher remittance fees. The model can help site developers identify the most crucial land plots for project success and the optimal positions of turbines, with realistic estimates of costs and profitability. (C) 2013 Elsevier Ltd. All rights reserved.

Chen, Le [Ames Laboratory; MacDonald, Erin [Ames Laboratory

2013-10-01T23:59:59.000Z

308

Rotary torque and rpm indicator for oil well drilling rigs  

SciTech Connect

Monitoring the torque applied by the rotary table to the drill string and the rpm of the drill string is provided. An intermediate adapter is positioned between the drill kelly and the rotary table. A strain gauge is attached to the intermediate adapter to measure torsional deformation and provide an indication of rotary torque. Transmission of torque data is accomplished by radio frequency transmission utilizing a transmitter on the intermediate adapter. A receiver is mounted to the side of the drill rig floor to receive and demodulate the torque signal. The intermediate adapter is rotating at the same rate as the drill string. Detection of the revolutions utilizing the changing R.F. Field strength is accomplished at the edge of the drill rig platform or elsewhere with a stationary sensor which doubles as the torque receiver. A highly directional torque transmitter antenna mounted on the adapter is used with the major lobe lying parallel to the rig floor and perpendicular to the pipe. By detecting the envelope of the radio frequency field strength, each rotation is marked by a peak. This enables continuous torque and rpm monitoring.

Chien, L.C.

1981-08-25T23:59:59.000Z

309

Rotary union for use with ultrasonic thickness measuring probe  

DOE Patents (OSTI)

A rotary union for rotatably supporting an ultrasonic probe operable to nondestructively measure the thickness of steam generator tubes to determine the amount of corrosion experienced by the tubes includes a stationary body having a bore therethrough and an outlet drain, and a fitting rotatably mounted within the upper end of the body. The fitting has a bore aligned with the bore of the body. An electrical cable positioned within a water supply tube in an annular arrangement passes through the bore of the body and the bore of the fitting. This annular arrangement, in turn, is positioned within a connector element which extends outwardly from the fitting bore and is connected to the ultrasonic probe. An elastomeric lower bushing seals the annular arrangement to the lower end of the rotary union body and an elastomeric upper bushing seals the connector element to the fitting to permit the connector element and the ultrasonic probe connected thereto to rotate with the fitting relative to the body. The lower and upper bushings permit water to be passed through the annular arrangement and into the ultrasonic probe and thereafter discharged between the annular arrangement and the connector element to the outlet drain of the rotary union body. 5 figs.

Nachbar, H.D.

1992-09-15T23:59:59.000Z

310

Influence and optimization of the electrodes position in a piezoelectric energy harvesting flag  

E-Print Network (OSTI)

Fluttering piezoelectric plates may harvest energy from a fluid flow by converting the plate's mechanical deformation into electric energy in an output circuit. This work focuses on the influence of the arrangement of the piezoelectric electrodes along the plate's surface on the energy harvesting efficiency of the system, using a combination of experiments and numerical simulations. A weakly non-linear model of a plate in axial flow, equipped with a discrete number of piezoelectric patches is derived and confronted to experimental results. Numerical simulations are then used to optimize the position and dimensions of the piezoelectric electrodes. These optimal configurations can be understood physically in the limit of small and large electromechanical coupling.

Pińeirua, Miguel; Michelin, Sébastien

2015-01-01T23:59:59.000Z

311

Assessment of Cost-optimal Energy Performance Requirements for the Italian Residential Building Stock  

Science Journals Connector (OSTI)

Abstract Directive 2010/31/EU establishes that Member States must ensure that minimum energy performance requirements for buildings are set with a view to achieve cost-optimal levels. The paper presents a methodology for identifying the cost-optimal levels for the Italian residential building stock, following the Guidelines accompanying the Commission Delegated Regulation No. 244/2012. The methodology is applied to a reference building of the IEE-TABULA project and considering different energy efficiency measures. The energy performance and the global cost calculations are performed according to UNI/TS 11300 and UNI EN 15459, respectively. A new cost optimisation procedure based on a sequential search-optimisation technique considering discrete options is applied.

Vincenzo Corrado; Ilaria Ballarini; Simona Paduos

2014-01-01T23:59:59.000Z

312

The use of least squares methods in functional optimization of energy use prediction models  

Science Journals Connector (OSTI)

The least squares method (LSM) is used to optimize the coefficients of a closed-form correlation that predicts the annual energy use of buildings based on key envelope design and thermal parameters. Specifically annual energy use is related to a number parameters like the overall heat transfer coefficients of the wall roof and glazing glazing percentage and building surface area. The building used as a case study is a previously energy-audited mosque in a suburb of Kuwait City Kuwait. Energy audit results are used to fine-tune the base case mosque model in the VisualDOE{trade mark serif} software. Subsequently 1625 different cases of mosques with varying parameters were developed and simulated in order to provide the training data sets for the LSM optimizer. Coefficients of the proposed correlation are then optimized using multivariate least squares analysis. The objective is to minimize the difference between the correlation-predicted results and the VisualDOE-simulation results. It was found that the resulting correlation is able to come up with coefficients for the proposed correlation that reduce the difference between the simulated and predicted results to about 0.81%. In terms of the effects of the various parameters the newly-defined weighted surface area parameter was found to have the greatest effect on the normalized annual energy use. Insulating the roofs and walls also had a major effect on the building energy use. The proposed correlation and methodology can be used during preliminary design stages to inexpensively assess the impacts of various design variables on the expected energy use. On the other hand the method can also be used by municipality officials and planners as a tool for recommending energy conservation measures and fine-tuning energy codes.

2012-01-01T23:59:59.000Z

313

Optimal energy-harvesting cycles for load-driven dielectric generators in plane strain  

E-Print Network (OSTI)

The performances of energy harvesting generators based on dielectric elastomers are investigated. The configuration is of a thin dielectric film coated by stretchable electrodes at both sides. The film is first stretched, then charged and subsequently, afterwards it is released, and finally the charge is harvested at a higher electric potential. The amount of energy extracted by this cycle is bounded by the electric breakdown and the ultimate stretch ratio of the film as well as by structural instabilities due to loss of tension. To identify the optimal cycle that complies with these limits we formulate a constraint optimization problem and solve it with a dedicated solver for two typical classes of elastic dielectrics. As anticipated, we find that the performance of the generator depends critically on the ultimate stretch ratio of the film. However, more surprising is our finding of a universal limit on the dielectric strength of the film beyond which the optimal cycle is independent of this parameter. Thus, we reveal that, regardless of how large the dielectric strength of the material is, there is an upper bound on the amount of harvested energy that depends only on the ultimate stretch ratio. We conclude the work with detailed calculations of the optimal cycles for two commercially available elastic dielectrics.

R. Springhetti; E. Bortot; G. deBotton; M. Gei

2014-03-13T23:59:59.000Z

314

Energy Optimization Management in a Petrochemical Plant: A Self-Development Case  

E-Print Network (OSTI)

Eduardo Magalhăes| may 21, 2014 Energy Optimization Management in a Petrochemical Plant: A Self-Development Case ESL-IE-14-05-26 Proceedings of the Thrity-Sixth Industrial Energy Technology Conference New Orleans, LA. May 20-23, 2014 EXTRACTION...-IE-14-05-26 Proceedings of the Thrity-Sixth Industrial Energy Technology Conference New Orleans, LA. May 20-23, 2014 BAHIA BRAZIL 1 CRACKER 4 PE 1 PP 1 PVC 1 CHLOR-ALKALI ALAGOAS BRAZIL 2 PVC 1 CHLOR-ALKALI SAO PAULO BRAZIL 2 PE 2 PP 1 CRACKER RIO DE...

Magalhaes, E.

2014-01-01T23:59:59.000Z

315

Distributed Energy Resource Optimization Using a Software as Service (SaaS)  

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

Distributed Energy Resource Optimization Using a Software as Service (SaaS) Distributed Energy Resource Optimization Using a Software as Service (SaaS) Approach at the University of California, Davis Campus Title Distributed Energy Resource Optimization Using a Software as Service (SaaS) Approach at the University of California, Davis Campus Publication Type Report Year of Publication 2011 Authors Stadler, Michael, Chris Marnay, Jonathan Donadee, Judy Lai, Olivier MĂ©gel, Prajesh Bhattacharya, and Afzal S. Siddiqui Pagination 51 Date Published 02/2011 Publisher LBNL City Berkeley Keywords building optimization, distributed energy resources (der), electricity markets and policy group, energy analysis and environmental impacts department Abstract Together with OSIsoft LLC as its private sector partner and matching sponsor, the Lawrence Berkeley National Laboratory (Berkeley Lab) won an FY09 Technology Commercialization Fund (TCF) grant from the U.S. Department of Energy. The goal of the project is to commercialize Berkeley Lab's optimizing program, the Distributed Energy Resources Customer Adoption Model (DER-CAM) using a software as a service (SaaS) model with OSIsoft as its first non-scientific user. OSIsoft could in turn provide optimization capability to its software clients. In this way, energy efficiency and/or carbon minimizing strategies could be made readily available to commercial and industrial facilities. Specialized versions of DER-CAM dedicated to solving OSIsoft's customer problems have been set up on a server at Berkeley Lab. The objective of DER-CAM is to minimize the cost of technology adoption and operation or carbon emissions, or combinations thereof. DER-CAM determines which technologies should be installed and operated based on specific site load, price information, and performance data for available equipment options. An established user of OSIsoft's PI software suite, the University of California, Davis (UCD), was selected as a demonstration site for this project. UCD's participation in the project is driven by its motivation to reduce its carbon emissions. The campus currently buys electricity economically through the Western Area Power Administration (WAPA). The campus does not therefore face compelling cost incentives to improve the efficiency of its operations, but is nonetheless motivated to lower the carbon footprint of its buildings. Berkeley Lab attempted to demonstrate a scenario wherein UCD is forced to purchase electricity on a standard time-of-use tariff from Pacific Gas and Electric (PG&E), which is a concern to Facilities staff. Additionally, DER-CAM has been set up to consider the variability of carbon emissions throughout the day and seasons. Two distinct analyses of value to UCD are possible using this approach. First, optimal investment choices for buildings under the two alternative objectives can be derived. Second, a week-ahead building operations forecaster has been written that executes DER-CAM to find an optimal operating schedule for buildings given their expected building energy services requirements, electricity prices, and local weather. As part of its matching contribution, OSIsoft provided a full implementation of PI and a server to install it on at Berkeley Lab. Using the PItoPI protocol, this gives Berkeley Lab researchers direct access to UCD's PI data base. However, this arrangement is in itself inadequate for performing optimizations. Additional data not included in UCD's PI database would be needed and the campus was not able to provide this information. This report details the process, results, and lessons learned of this commercialization project.

316

E-Print Network 3.0 - alpha rotary joint Sample Search Results  

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

Drilling Diana LaBelle, John Bares, Illah Nourbakhsh Summary: , thrust, rotary speed and penetration rate, to train a neural network to classify rock. Section 2... applications...

317

Systems acceptance and operability testing for rotary mode core sampling in flammable gas tanks  

SciTech Connect

This document provides instructions for the system acceptance and operability testing of the rotary mode core sampling system, modified for use in flammable gas tanks.

Corbett, J.E., Westinghouse Hanford

1996-07-29T23:59:59.000Z

318

MiSer: An Optimal Low-Energy Transmission Strategy for IEEE 802.11a/h  

E-Print Network (OSTI)

at appropriate moments to save battery energy. An alternative way to conserve energy is to apply TPC (Trans- mitMiSer: An Optimal Low-Energy Transmission Strategy for IEEE 802.11a/h Daji Qiao+ Sunghyun Choi the energy consumption by wireless communication de- vices is perhaps the most important issue in the widely

Qiao, Daji

319

66 IEEE TRANSACTIONS ON SUSTAINABLE ENERGY, VOL. 1, NO. 2, JULY 2010 Optimization of Wind Turbine Performance With  

E-Print Network (OSTI)

66 IEEE TRANSACTIONS ON SUSTAINABLE ENERGY, VOL. 1, NO. 2, JULY 2010 Optimization of Wind Turbine, torque, tower acceleration, wind turbine vibrations. I. INTRODUCTION I NTEREST in renewable energy has to carbon taxation has become a catalyst in the quest for clean energy. Wind energy has been most

Kusiak, Andrew

320

Optimal Deployment of Thermal Energy Storage under Diverse Economic and Climate Conditions  

SciTech Connect

This paper presents an investigation of the economic benefit of thermal energy storage (TES) for cooling, across a range of economic and climate conditions. Chilled water TES systems are simulated for a large office building in four distinct locations, Miami in the U.S.; Lisbon, Portugal; Shanghai, China; and Mumbai, India. Optimal system size and operating schedules are determined using the optimization model DER-CAM, such that total cost, including electricity and amortized capital costs are minimized. The economic impacts of each optimized TES system is then compared to systems sized using a simple heuristic method, which bases system size as fraction (50percent and 100percent) of total on-peak summer cooling loads. Results indicate that TES systems of all sizes can be effective in reducing annual electricity costs (5percent-15percent) and peak electricity consumption (13percent-33percent). The investigation also indentifies a number of criteria which drive TES investment, including low capital costs, electricity tariffs with high power demand charges and prolonged cooling seasons. In locations where these drivers clearly exist, the heuristically sized systems capture much of the value of optimally sized systems; between 60percent and 100percent in terms of net present value. However, in instances where these drivers are less pronounced, the heuristic tends to oversize systems, and optimization becomes crucial to ensure economically beneficial deployment of TES, increasing the net present value of heuristically sized systems by as much as 10 times in some instances.

DeForest, Nicolas; Mendes, Goncalo; Stadler, Michael; Feng, Wei; Lai, Judy; Marnay, Chris

2014-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Building America Top Innovations Hall of Fame Profile … Building Energy Optimization Analysis Method (BEopt)  

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

House geometries are among the many House geometries are among the many options users can enter in BEopt. Results shown here are rendered in SketchUp and show neighboring houses for shading analysis. To achieve Building America's ambitious energy-efficiency goals, it becomes increasingly important that researchers can identify the most cost-effective, high-performance improvements. BEopt has proven to be an invaluable analysis tool enabling Building America and its research partners to progress to zero net-energy new homes and deep energy retrofits. There are many energy analysis software tools out there-some do optimization, some do residential analysis, some do retrofit analysis, some come pre-packaged with options and costs, etc. With support from DOE's Building America program, researchers at the National Renewable Energy

322

Multi-objective optimization of a combined cooling, heating and power system driven by solar energy  

Science Journals Connector (OSTI)

Abstract This paper presented a multi-objective optimization of a combined cooling, heating and power system (CCHP) driven by solar energy. The flat-plate solar collector was employed to collect the solar radiation and to transform it into thermal energy. The thermal storage unit was installed to storage the thermal energy collected by the collectors to ensure a continuous energy supplement when solar energy was weak or insufficient. The CCHP system combined an organic Rankine cycle with an ejector refrigeration cycle to yield electricity and cold capacity to users. In order to conduct the optimization, the mathematical model of the solar-powered CCHP system was established. Owing to the limitation of the single-objective optimization, the multi-objective optimization of the system was carried out. Four key parameters, namely turbine inlet temperature, turbine inlet pressure, condensation temperature and pinch temperature difference in vapor generator, were selected as the decision variables to examine the performance of the overall system. Two objective functions, namely the average useful output and the total heat transfer area, were selected to maximize the average useful output and to minimize the total heat transfer area under the given conditions. NSGA-II (Non-dominated Sort Genetic Algorithm-II) was employed to achieve the final solutions in the multi-objective optimization of the system operating in three modes, namely power mode, combined heat and power (CHP) mode, and combined cooling and power (CCP) mode. For the power mode, the optimum average useful output and total heat transfer area were 6.40 kW and 46.16 m2. For the CCP mode, the optimum average useful output and total heat transfer area were 5.84 kW and 58.74 m2. For the CHP mode, the optimum average useful output and total heat transfer area were 8.89 kW and 38.78 m2. Results also indicated that the multi-objective optimization provided a more comprehensive solution set so that the optimum performance could be achieved according to different requirements for system.

Man Wang; Jiangfeng Wang; Pan Zhao; Yiping Dai

2015-01-01T23:59:59.000Z

323

Integrating requirement analysis and multi-objective optimization for office building energy retrofit strategies  

Science Journals Connector (OSTI)

Abstract The existing office building stock is a key target for energy retrofits to substantially reduce adverse impacts on the environment, human health, and the economy. Success of an energy retrofit project is tied with the assessment and selection of energy efficiency measures that can satisfy stakeholders’ diverse, and often conflicting requirements. The current study establishes a model-based method to support design teams in making informed multi-criteria decisions for energy-efficiency solutions at the early design stage. The key feature of the hybrid framework is the integration of an analysis procedure carried out by a design team and a numerical procedure of optimization carried out by computer. Such an interaction is necessary as building design and retrofit requires many qualitative aspects that require human judgment. In contrast to previous approaches, this study provides a basis for embedding multi-objective optimization into the decision making on energy retrofit solutions, which considers the important role of stakeholders by carrying out the analysis procedure. An office building in Germany needing an energy retrofit serves as a case study to demonstrate the feasibility of the proposed model.

Yunming Shao; Philipp Geyer; Werner Lang

2014-01-01T23:59:59.000Z

324

Heat transfer and combustion characteristics of a burner with a rotary regenerative heat exchanger  

SciTech Connect

The authors have developed a Rotary Regenerative Combustion (RRX) System, which is coupled with a compact high efficiency regenerative air heat exchanger and a combustion burner. This system contributes to saving energy of fuel firing industrial furnaces and decreases NO{sub x} emission. This technology can be considered as a solution of greenhouse problem. This paper, discusses a compact high efficiency regenerative air heat exchanger in comparison with the existing types of regenerative burners and reverse firing with high momentum fuel jet (with motive fluid) in the furnace. This burner is compact in size, with high fuel efficiency, low NOx emission, easy to operate, and reliable, based on the results of field tests and commercial operations. The authors can say that the RRX system is a regenerative burner of the second generation.

Hirose, Yasuo; Kaji, Hitoshi; Arai, Norio

1998-07-01T23:59:59.000Z

325

From the Optimizing Thermostat to a Smart Energy Management System: Models,  

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

From the Optimizing Thermostat to a Smart Energy Management System: Models, From the Optimizing Thermostat to a Smart Energy Management System: Models, Benchmark, and Insights Speaker(s): Yong Liang Date: May 1, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Janie Page Nowadays, users in the retail electricity market only need to pay a fixed rate for electricity. This strategy results in lack of coordination between demand and supply and costs significant waste. A shift from fixed rate pricing in retail markets could potentially yield many benefits. Time-varying pricing promotes the substitution of off-peak consumption for peak consumption, reducing strain on the electrical system, the need for costly and inefficient "peaker" plants, and waste in electricity delivery. However, existing research supports what common sense suggests:

326

Data Warehouse Model to Support Optimized Operation and Energy Savings in Buildings  

E-Print Network (OSTI)

University College Cork (Ireland) Department of Civil and Environmental Engineering Data Warehouse Model to support Optimized Operation and Energy Savings in Buildings Paul Stack, Brian Cahill, Farhan Manzoor, Prof. Karsten Menzel 20... October 2011 page 1ICEBO 2011 Session 10 - Brian Cahill University College Cork (Ireland) Department of Civil and Environmental Engineering ICT for Optimised Building Operation (ITOBO) 20 October 2011 ICEBO 2011 Session 10 - Brian Cahill page 2...

Stack, P.; Cahill, B.; Manzoor, F.; Menzel, K.

2011-01-01T23:59:59.000Z

327

Fermilab Central Computing Facility: Energy conservation report and mechanical systems design optimization and cost analysis study  

SciTech Connect

This report is developed as part of the Fermilab Central Computing Facility Project Title II Design Documentation Update under the provisions of DOE Document 6430.1, Chapter XIII-21, Section 14, paragraph a. As such, it concentrates primarily on HVAC mechanical systems design optimization and cost analysis and should be considered as a supplement to the Title I Design Report date March 1986 wherein energy related issues are discussed pertaining to building envelope and orientation as well as electrical systems design.

Krstulovich, S.F.

1986-11-12T23:59:59.000Z

328

Analysis of Energy Savings by Painting a Rotary Kiln Surface  

E-Print Network (OSTI)

is 9 feet as shown in Fig. 3. Except the section with lifters (for enhancing petcoke mixing), the wall consists of a 7/8-inch metal shell and a 9- inch layer of refractory brick as the insulation liner. There are 8 lifters cast in place... is 9 feet as shown in Fig. 3. Except the section with lifters (for enhancing petcoke mixing), the wall consists of a 7/8-inch metal shell and a 9- inch layer of refractory brick as the insulation liner. There are 8 lifters cast in place...

Li, X.; Wang, T.; Tonti, R. T.; Edwards, L.

2007-01-01T23:59:59.000Z

329

Energy Efficiency Improvement and Cost Saving Opportunities for the Dairy Processing Industry  

E-Print Network (OSTI)

typically using centrifugal compressors or turbo fans) andapplied to centrifugal and rotary screw compressors. At thecompressor fan energy use by up to 50% compared to centrifugal

Brush, Adrian

2012-01-01T23:59:59.000Z

330

1742 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS--I: REGULAR PAPERS, VOL. 55, NO. 6, JULY 2008 An Adaptive System for Optimal Solar Energy  

E-Print Network (OSTI)

An Adaptive System for Optimal Solar Energy Harvesting in Wireless Sensor Network Nodes Cesare Alippi, Fellow, with solar energy being the most inter- esting one in outdoor deployments due to its relatively high power transferring circuit for optimally conveying solar energy into rechargeable batteries even in not optimal

Alippi, Cesare

331

Toward zero net energy buildings : optimized for energy use and cost  

E-Print Network (OSTI)

Recently, there has been a push toward zero net energy buildings (ZNEBs). While there are many options to reduce the energy used in buildings, it is often difficult to determine which are the most appropriate technologies ...

Brown, Carrie Ann, Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

332

The optimization problem Genetic Algorithm  

E-Print Network (OSTI)

The optimization problem Genetic Algorithm Particle Swarm Optimization Experimental results for time-power optimization META, October 27-31, 2014 1 / 25 #12;The optimization problem Genetic Algorithm Particle Swarm Optimization Experimental results Conclusions Time and energy optimization Traditionally

Giménez, Domingo

333

Optimal structure of Nigeria's energy sector under carbon-dioxide reduction  

Science Journals Connector (OSTI)

Energy requirements in Nigeria will continue to increase as a result of an expanding economy and a rapidly growing population. Although the country has abundant natural energy resources, substantial financial commitments will be required to put the necessary supply infrastructure in place in order to meet the growing requirements. Furthermore, there is the need for a carefully planned consumption pattern in view of the growing awareness of the environmental problems posed by continued consumption of these resources. This paper discusses a study of the optimal structure of the Nigerian energy sector over a period of 40 years, based on the least-cost path and carbon-dioxide emission reduction. The emission reduction strategies take the form of linear annual reductions, reaching 20% and 40% respectively below the year 2030 baseline emissions. The effects of these constraints on fuel mix in the supply and demand structure of the energy system are presented.

F.I. Ibitoye; J-F.K. Akinbami; A.O. Adegbulugbe

1998-01-01T23:59:59.000Z

334

Accepted Manuscript A wall heat transfer correlation for the baffled-rotary kilns with secondary air  

E-Print Network (OSTI)

Accepted Manuscript A wall heat transfer correlation for the baffled-rotary kilns with secondary;1 A wall heat transfer correlation for the baffled- rotary kilns with secondary air flow and recycled industrial applications suggests examining the heat transfer phenomena in order to improve the multi

Boyer, Edmond

335

Rotary Wing UAV Position Control using Backstepping Bilal Ahmed, Hemanshu R. Pota and Matt Garratt  

E-Print Network (OSTI)

Rotary Wing UAV Position Control using Backstepping Bilal Ahmed, Hemanshu R. Pota and Matt Garratt Abstract-- This paper presents a novel position control method for rotary wing UAVs using the backstepping for underactuated UAV including the flybar and flapping dynamics when stability derivatives are not available

Pota, Himanshu Roy

336

Structural model of F1–ATPase and the implications for rotary catalysis  

Science Journals Connector (OSTI)

...and R. M. Simmons Structural model of F1-ATPase and the implications for rotary...crystal structure of bovine mitochondrial F1-ATPase is described. Several features...approximately spherical alpha3beta3 sub-assembly. F1-ATPase|crystal structure|rotary catalysis...

2000-01-01T23:59:59.000Z

337

Climate Change and Optimal Energy Technology Department of Mechanical and Industrial Engineering, College of Engineering, University of Massachusetts, Amherst,  

E-Print Network (OSTI)

Climate Change and Optimal Energy Technology R&D Policy Erin Baker Department of Mechanical of Massachusetts, Amherst, MA 01003, solak@som.umass.edu Public policy response to global climate change presents accounting for uncertainty and learning in climate change can have a large impact on optimal policy

Massachusetts at Amherst, University of

338

vol. 163, no. 3 the american naturalist march 2004 Optimal Body Size and Energy Expenditure during Winter  

E-Print Network (OSTI)

, South Africa; e-mail: m.scantlebury@zoology.up.ac.za. § E-mail: rachel@naturebureau.co.uk. k E-mail: xvol. 163, no. 3 the american naturalist march 2004 Optimal Body Size and Energy Expenditure during energy requirements for thermogenesis at a time when little energy is available. We formulated a model

Lambin, Xavier

339

Design optimization methodology for power converters based on global energy requirement criteria. Application to a DC-DC flyback structure  

E-Print Network (OSTI)

for power electronic converters according to the Global Energy Requirement (GER) criterion, i.e. the primary-design converters in order to take its environmental impacts (here, only its global primary energy consumptionDesign optimization methodology for power converters based on global energy requirement criteria

Paris-Sud XI, Université de

340

Analysis and optimization of cascade Rankine cycle for liquefied natural gas cold energy recovery  

Science Journals Connector (OSTI)

Abstract This study proposes a new concept called the cascade Rankine cycle, which recovers LNG (liquefied natural gas) cold energy for power generation, optimizes the cycle by investigating the effects of key parameters on its performance, and compares its thermal efficiency, exergy efficiency and economic evaluation to those of the conventional alternatives. The cascade Rankine cycle consists of multiple stages of the organic Rankine cycle in a layered structure in which the first stage encompasses the second one that, in turn, encompasses the next. Due to its layered configuration, optimization of the cycle is straightforward and involves sequentially optimizing the individual stages. Optimization of the subsequent stages, however, required process simulation considering the equipment efficiency and the thermodynamic properties of the working fluid. Process simulation indicated that the indicators such as net power output, thermal efficiency, and exergy efficiency generally increase as the number of stages increases. These indicators were, however, significantly affected by the thermodynamic properties of the working fluids. The proposed cycles demonstrated significantly better performance in these indicators than the conventional cycles. The three-stage cascade Rankine cycle with propane as the working fluid exhibited the highest net power output, thermal efficiency and exergy efficiency within the set.

In-Hwan Choi; Sangick Lee; Yutaek Seo; Daejun Chang

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Optimization of Electric Energy in Three-Phase Induction Motor by Balancing of Torque and Flux Dependent Losses  

Science Journals Connector (OSTI)

This paper presents the solution of the energy optimal control of three-phase induction motor (IM) by balancing of torque and flux dependent losses. First, we build formula of total losses of motor (iron losse...

Nguyen Thanh Hung; Nguyen Chi Thien…

2014-01-01T23:59:59.000Z

342

Methodology, morphology, and optimization of carbon nanotube growth for improved energy storage in a double layer capacitor  

E-Print Network (OSTI)

The goal of this thesis is to optimize the growth of carbon nanotubes (CNTs) on a conducting substrate for use as an electrode to improve energy density in a double-layer capacitor. The focus has been on several areas, ...

Ku, Daniel C. (Daniel Chung-Ming), 1985-

2009-01-01T23:59:59.000Z

343

E-AMOM: An Energy-Aware Modeling and Optimization Methodology for Scientific Applications on Multicore Systems  

E-Print Network (OSTI)

power consumption of the scientific applications. Further, we optimize our applications based upon insights provided by the performance models to reduce runtime of the applications. Our methods and techniques are able to save up to 18% in energy...

Lively, Charles

2012-07-16T23:59:59.000Z

344

International Journal of Innovations in Engineering and Technology (IJIET) Optimal Rural Microgrid Energy Management Using  

E-Print Network (OSTI)

Abstract-The microgrid concept is a natural evolution of distributed resources that may be used to serve energy to customers in areas where conventional power system approaches cannot satisfy the reliability needs. Microgrids[2] may also provide support to conventional power systems that are too constrained to meet the power demands of customers. This paper presents a case study of a remote village dependent on agriculture, with no grid extension. The remote village consists of 400 people and 200 cattle including poultries, bovines, swine etc. The latitude and longitude of the study area are 30 ° 32 ’ N and 76 ° 39 ’ E respectively. The proposed model consists of Photovoltaic (PV) array, wind energy subsystem, micro hydro, biogas fueled generator and battery storage sub-system. The final goal is to maximize energy output from distributed energy resources (DERs) by Optimization using HOMER. Performance of each component of the model will be evaluated and finally sensitivity analysis will be performed to optimize the system at different conditions.

unknown authors

345

Combined Municipal Solid Waste and biomass system optimization for district energy applications  

SciTech Connect

Highlights: • Combined energy conversion of MSW and agricultural residue biomass is examined. • The model optimizes the financial yield of the investment. • Several system specifications are optimally defined by the optimization model. • The application to a case study in Greece shows positive financial yield. • The investment is mostly sensitive on the interest rate, the investment cost and the heating oil price. - Abstract: Municipal Solid Waste (MSW) disposal has been a controversial issue in many countries over the past years, due to disagreement among the various stakeholders on the waste management policies and technologies to be adopted. One of the ways of treating/disposing MSW is energy recovery, as waste is considered to contain a considerable amount of bio-waste and therefore can lead to renewable energy production. The overall efficiency can be very high in the cases of co-generation or tri-generation. In this paper a model is presented, aiming to support decision makers in issues relating to Municipal Solid Waste energy recovery. The idea of using more fuel sources, including MSW and agricultural residue biomass that may exist in a rural area, is explored. The model aims at optimizing the system specifications, such as the capacity of the base-load Waste-to-Energy facility, the capacity of the peak-load biomass boiler and the location of the facility. Furthermore, it defines the quantity of each potential fuel source that should be used annually, in order to maximize the financial yield of the investment. The results of an energy tri-generation case study application at a rural area of Greece, using mixed MSW and biomass, indicate positive financial yield of investment. In addition, a sensitivity analysis is performed on the effect of the most important parameters of the model on the optimum solution, pinpointing the parameters of interest rate, investment cost and heating oil price, as those requiring the attention of the decision makers. Finally, the sensitivity analysis is enhanced by a stochastic analysis to determine the effect of the volatility of parameters on the robustness of the model and the solution obtained.

Rentizelas, Athanasios A., E-mail: arent@central.ntua.gr; Tolis, Athanasios I., E-mail: atol@central.ntua.gr; Tatsiopoulos, Ilias P., E-mail: itat@central.ntua.gr

2014-01-15T23:59:59.000Z

346

Efficient energy transfer in light-harvesting systems, I: optimal temperature, reorganization energy, and spatial-  

E-Print Network (OSTI)

. Silbey1 Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts, 02139, USA. E-mails: jianshu@mit.edu; silbey@mit.edu Abstract. Understanding the mechanisms stages in the conversion of solar energy into chemical and other useful forms of energy for human

Cao, Jianshu

347

Assessment of Energy Efficiency Improvement and CO2 Emission Reduction Potentials in the Cement Industry in China  

E-Print Network (OSTI)

in Shandong Province. Sinton, J.E. , 1996. Energy Efficiencyenvironmental impacts (Sinton, 1996; ITIBMIC, 2004). Rotarycurrently-used rotary kilns (Sinton, 1996). However, future

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

348

Design and optimization of piezoelectric impact-based micro wind energy harvester for wireless sensor network  

Science Journals Connector (OSTI)

Abstract The purpose of the current study is to design and optimize a piezoelectric impact-based micro wind energy harvester (PIMWEH) as a power source for wireless sensor networks. First, using new PIMWEH design, numerical simulation, and experimental comparison analysis, we determined the most durable PIMWEH shape for application as a power source of WSNs. The experimental results show that the optimized PIMWEH generated 2.8 mW (RMS value) and did not crack within 40 h. Second, to supply power for sensor operation, we performed an experiment using a rectifying circuit, an AC–DC converter, and an electrical charger. The experimental results show a pure DC voltage signal of 3.3 V, and the output power was 1.0 mW (3.1 mW/cm3). A charging energy of 0.845 J was obtained in 24 min. Third, we calculated the efficiency of the PIMWEH to evaluate its performance. Using a three-step energy conversion process (using wind turbine, PZT, and LTC3588-1), an overall PIMWEH power conversion efficiency of 3.2% was obtained. For one day, the PIMWEH could supply power that is 6263 to 25055 times the power requirement of a commercialized ZigBee transmission. In addition, transmitting signals at intervals from 3.4 to 13 s was made possible.

Hyun Jun Jung; Yooseob Song; Seong Kwang Hong; Chan Ho Yang; Sung Joo Hwang; Se Yeong Jeong; Tae Hyun Sung

2014-01-01T23:59:59.000Z

349

Developing Energy Crops for Thermal Applications: Optimizing Fuel Quality, Energy Security and GHG Mitigation  

Science Journals Connector (OSTI)

Unprecedented opportunities for biofuel development are occurring as a result of increasing energy security concerns and the need to reduce greenhouse gas (GHG) emissions. This chapter analyzes the potential ... ...

Roger Samson; Claudia Ho Lem…

2008-01-01T23:59:59.000Z

350

Review of models and actors in energy mix optimization – can leader visions and decisions align with optimum model strategies for our future energy systems?  

Science Journals Connector (OSTI)

Organizational behavior and stakeholder processes continually influence energy strategy choices and decisions. Although theoretical optimizations can provide guidance for energy mix decisions from a pure physical systems engineering point of view, these solutions might not be optimal from a political or social perspective. Improving the transparency of our vision sharing and strategy making processes in a systematic way is therefore as important as the actual systems engineering solutions proposed by the modeling tools. Energy trend forecasting and back-casting, scenarios and system analysis have matured into powerful modeling tools for providing advice on optimizing our future energy solutions. The integrated use and iterative improvement of all these approaches can result in energy systems that become better optimized. Such an integrated approach is particularly important to those who have decision-making power over our future energy direction. Some of the challenges and opportunities for energy strategists that strive to promote optimal decisions on our future energy solutions are highlighted in this state-of-the-art review.

Ruud Weijermars; Peter Taylor; Olivier Bahn; Subir Ranjan Das; Yi-Ming Wei

2012-01-01T23:59:59.000Z

351

Modeling Resource, Infrastructure, and Policy Cost Layers for Optimizing Renewable Energy Investment and Deployment  

SciTech Connect

This paper presents a framework for creating a common spatial canvass that can bring together considerations of resource availability, infrastructure reliability, and development costs while strategizing renewable energy investment. We describe the underlying models and methodologies that annotate an investment plan for potential sites over a time-period with costs and constraints which may be imposed on distance from infrastructure, system impact on infrastructure, and policy incentives. The framework is intended as an enabler for visualization, optimization and decision making across diverse dimensions while searching for lucrative investment-plans.

Sukumar, Sreenivas R [ORNL] [ORNL; Olama, Mohammed M [ORNL] [ORNL; Shankar, Mallikarjun [ORNL] [ORNL; Hadley, Stanton W [ORNL] [ORNL; Nutaro, James J [ORNL] [ORNL; Protopopescu, Vladimir A [ORNL] [ORNL; Malinchik, Sergey [Lockheed Martin Corporation] [Lockheed Martin Corporation; Ives, Barry [Lockheed Martin Corporation] [Lockheed Martin Corporation

2010-01-01T23:59:59.000Z

352

Development of a Low-Cost Rotary Steerable Drilling System  

SciTech Connect

The project had the goal to develop and commercialize a low-cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures to reduce operating costs by a minimum of 50% and lost-in-hole charges by at least 50% over the currently offered systems. The LCRSS system developed under this project does reduce operating costs by 55% and lost-in-hole charges by at least 50%. The developed product is not commercializable in its current form. The overall objective was to develop and commercialize a low cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures (20,000 psi/150 C) while reducing the operating costs by 50% and the lost-in-hole charges by 50% over the currently available systems. The proposed reduction in costs were to be realized through the significant reduction in tool complexity, a corresponding increase in tool reliability as expressed in the mean-time between failure (MTBF), and a reduction in the time and costs required to service tools after each field operation. Ultimately, the LCRSS system was to be capable of drilling 7 7/8 in. to 9 5/8 in. borehole diameters. The project was divided into three Phases, of which Phases I & II were previously completed and reported on, and are part of the case file. Therefore, the previously reported information is not repeated herein. Phase III included the fabrication of two field ready prototypes that were to be subjected to a series of drilling tests at GTI Catoosa, DOE RMOTC, and at customer partnering wells, if possible, as appropriate in the timing of the field test objectives to fully exercise all elements of the LCRSS. These tests were conducted in an iterative process based on a performance/reliability improvement cycle with the goal of demonstrating the system met all aspects required for commercial viability. These tests were conducted to achieve continuous runs of 100+ hours with well trajectories that fully exercised the tool's build/turn/drop/hold target capabilities and its higher end ratings for bit weight, torque and rotary speed. The tool teardowns were rigorously analyzed at the conclusion of each field run to assess component wear rates and to fully document any detrimental behavior(s) observed.

Roney Nazarian

2012-01-31T23:59:59.000Z

353

Distribution expansion planning considering reliability and security of energy using modified PSO (Particle Swarm Optimization) algorithm  

Science Journals Connector (OSTI)

Abstract Distribution feeders and substations need to provide additional capacity to serve the growing electrical demand of customers without compromising the reliability of the electrical networks. Also, more control devices, such as DG (Distributed Generation) units are being integrated into distribution feeders. Distribution networks were not planned to host these intermittent generation units before construction of the systems. Therefore, additional distribution facilities are needed to be planned and prepared for the future growth of the electrical demand as well as the increase of network hosting capacity by DG units. This paper presents a multiobjective optimization algorithm for the MDEP (Multi-Stage Distribution Expansion Planning) in the presence of \\{DGs\\} using nonlinear formulations. The objective functions of the MDEP consist of minimization of costs, END (Energy-Not-Distributed), active power losses and voltage stability index based on SCC (Short Circuit Capacity). A MPSO (modified Particle Swarm Optimization) algorithm is developed and used for this multiobjective MDEP optimization. In the proposed MPSO algorithm, a new mutation method is implemented to improve the global searching ability and restrain the premature convergence to local minima. The effectiveness of the proposed method is tested on a typical 33-bus test system and results are presented.

Jamshid Aghaei; Kashem M. Muttaqi; Ali Azizivahed; Mohsen Gitizadeh

2014-01-01T23:59:59.000Z

354

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

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

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings Title Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings Publication Type Report LBNL Report Number LBNL-5193E Year of Publication 2011 Authors Garbesi, Karina, Vagelis Vossos, Alan H. Sanstad, and Gabriel Burch Document Number LBNL-5193E Pagination 59 Date Published October Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract An increasing number of energy efficient appliances operate on direct current (DC) internally, offering the potential to use DC from renewable energy systems directly and avoiding the losses inherent in converting power to alternating current (AC) and back. This paper investigates that potential for net-metered residences with on-site photovoltaics (PV) by modeling the net power draw of the 'direct-DC house' with respect to today's typical configuration, assuming identical DC-internal loads. Power draws were modeled for houses in 14 U.S. cities, using hourly, simulated PV-system output and residential loads. The latter were adjusted to reflect a 33% load reduction, representative of the most efficient DC-internal technology, based on an analysis of 32 electricity end-uses. The model tested the effect of climate, electric vehicle (EV) loads, electricity storage, and load shifting on electricity savings; a sensitivity analysis was conducted to determine how future changes in the efficiencies of power system components might affect savings potential. Based on this work, we estimate that net-metered PV residences could save 5% of their total electricity load for houses without storage and 14% for houses with storage. Based on residential PV penetration projections for year 2035 obtained from the National Energy Modeling System (2.7% for the reference case and 11.2% for the extended policy case), direct-DC could save the nation 10 trillion Btu (without storage) or 40 trillion Btu (with storage). Shifting the cooling load by two hours earlier in the day (pre-cooling) has negligible benefits for energy savings. Direct-DC provides no energy savings benefits for EV charging, to the extent that charging occurs at night. However, if charging occurred during the day, for example with employees charging while at work, the benefits would be large. Direct-DC energy savings are sensitive to power system and appliance conversion efficiencies but are not significantly influenced by climate. While direct-DC for residential applications will most likely arise as a spin-off of developments in the commercial sector-because of lower barriers to market entry and larger energy benefits resulting from the higher coincidence between load and insolation-this paper demonstrates that there are substantial benefits in the residential sector as well. Among residential applications, space cooling derives the largest energy savings from being delivered by a direct-DC system. It is the largest load for the average residence on a national basis and is particularly so in high-load regions. It is also the load with highest solar coincidence.

355

Predictive control and thermal energy storage for optimizing a multi-energy district boiler  

E-Print Network (OSTI)

and used when demand is high, instead of engaging the gas-fuel oil boiler. Keywords: multi-energy district believe that by 2015 the supply of oil and natural gas will be unable to keep up with demand [1 of La Rochelle (France) adding to the plant a controlled thermal storage tank. This plant supplies

Paris-Sud XI, Université de

356

Design of a Power Oscillation Damper for DFIG-based Wind Energy Conversion System Using Modified Particle Swarm Optimizer  

Science Journals Connector (OSTI)

This paper presents a method to design a Power Oscillation Damper (POD) for Double-Fed Induction Generator (DFIG) based Wind Energy Conversion System (WECS), operating with voltage control loop. Based on eigen values information from Small Signal Stability ... Keywords: Computational Intelligence, double fed induction generator, power oscillation damper, modified particle swarm optimizer, small signal stability analysis, wind energy conversion system

Huazhang Huang; C. Y. Chung

2012-05-01T23:59:59.000Z

357

Report on Testing to Expand the Rotary Mode Core Sampling Operating Envelope  

SciTech Connect

The Tank Waste Remediation System (TWRS) Characterization Equipment Group requested that the Numatec Hanford Corporation--Engineering Testing Laboratory (ETL) perform Rotary Mode Core Sampling (RMCS) Operating Envelope (OE) testing. This testing was based upon Witwer 1998a and was performed at different time periods between May and September 1998. The purpose of this testing was to raise the maximum down force limit for rotary mode core sampling as outlined in the current OE. If testing could show that a higher down force could be used while drilling into a concrete/pumice block simulant while still remaining below the 60 C limitation, then the current OE could be revised to include the new, higher, down force limit. Although the Test Plan discussed varying the purge flow rate and rotation rate to find ''optimal'' drilling conditions, the number of drill bits that could be destructively tested was limited. Testing was subsequently limited in scope such that only the down force would be varied while the purge flow rate and rotation rate were kept constant at 30 scfm and 55 rpm respectively. A second objective, which was not part of the original test plan, was added prior to testing. The Bit Improvement testing, mentioned previously, revealed that the drill bits tested in the OE testing were made of a slightly different metal matrix than the ones currently used. The older bits, a Longyear part number 100IVD/5 (/5 bit), had tungsten carbide mixed into the metal matrix that forms the cutting teeth. The currently used bits, Longyear part number 100IVD/8 (/8 bit), instead have tungsten metal in the matrix and no tungsten carbide. Rockwell C hardness testing showed that the /5 bit was significantly harder than the /8 bit, with values of /8 vs. 8, respectively. The change from the /5 bit to the /8 bit was made immediately after the previous OE testing in 1996 because of sparking concerns with the tungsten carbide in the /5 bit. This difference in hardness between the two bit materials was discovered in the Bit Improvement Testing and was expected to affect this OE testing. The second objective, therefore, was to quantify what affect this change in material had and define the OE, based on the current /8 bit design rather than the old /5 bit design.

BOGER, R.M.

1999-12-13T23:59:59.000Z

358

Theoretical and experimental study on regenerative rotary displacer Stirling engine  

SciTech Connect

Recently a quite new type of hot air engine called rotary displacer engine, in which the displacer is a rotating disk enclosed in a cylinder, has been conceived and developed. The working gas, contained in a notch excavated in the disk, is heated and cooled alternately, on account of the heat transferred through the enclosing cylinder that is heated at one side and cooled at the opposite one. The gas temperature oscillations cause the pressure fluctuations that get out mechanical power acting on a power piston. In order to attempt to increase the performances for this kind of engine, the authors propose three different regeneration methods. The first one comprises two coaxial disks that, revolving in opposite ways, cause a temperature gradient on the cylinder wall and a regenerative axial heat conduction through fins shaped on the cylinder inner wall. The other two methods are based on the heat transferred by a proper closed circuit that in one case has a circulating liquid inside and in the other one is formed by several heat pipes working each one for different temperatures. An engine based on the first principle, the Regenerative Tandem Contra-Rotary Displacer Stirling Engine, has been realized and experimented. In this paper experimental results with and without regeneration are reported comparatively with a detailed description of the unity. A basic explanation of the working principle of this engine and a theoretical analysis investigating the main influential parameters for the regenerative effect are done. This new rotating displacer Stirling engines, for their simplicity, are expected to attain high rotational speed especially for applications as demonstration and hobby unities.

Raggi, L.; Katsuta, Masafumi [Waseda Univ., Tokyo (Japan); Isshiki, Naotsugu [Nihon Univ., Tokyo (Japan); Isshiki, Seita [Isshiki R and D Lab., Tokyo (Japan)

1997-12-31T23:59:59.000Z

359

Thermal properties optimization of envelope in energy-saving renovation of existing public buildings  

Science Journals Connector (OSTI)

Abstract The shape factor and windows-to-wall ratio are different from building to building. How to design the thermal properties of building envelope affects energy-saving renovation economy of existing public buildings. The limited heat consumption per unit volume and equivalent heat transfer coefficient of external windows and wall were proposed based on the prescription of China national standard “Design standard for energy efficiency of public buildings”(GB50189-2005) for envelope design. Mathematical model on economical thermal insulation thickness of building envelope and thermal properties optimizing of envelope were built considering the impact of house orientation, windows-to-wall ratio and types of windows. The model is verified to be feasible by an existing public building in Shenyang. The variation of windows-to-wall ratio for different orientation leads to the different economical thermal insulation thickness of building envelope and payback period. The project optimization design for envelope renovation could be determined by the technical and economic analysis considering the impact of house orientation, windows-to-wall ratio, types of insulation materials and windows.

Jianen Huang; Henglin Lv; Tao Gao; Wei Feng; Yanxia Chen; Tai Zhou

2014-01-01T23:59:59.000Z

360

Building Distributed Energy Performance Optimization for China a Regional Analysis of Building Energy Costs and CO2 Emissions  

E-Print Network (OSTI)

optimizations. Technologies assessed include photovoltaics (PV), solar thermal, gas turbines, microturbines, fuel cells,

Feng, Wei

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Design guidelines for H-Darrieus wind turbines: Optimization of the annual energy yield  

Science Journals Connector (OSTI)

Abstract H-Darrieus wind turbines are gaining popularity in the wind energy market, particularly as they are thought to represent a suitable solution even in unconventional installation areas. To promote the diffusion of this technology, industrial manufacturers are continuously proposing new and appealing exterior solutions, coupled with tempting rated-power offers. The actual operating conditions of a rotor over a year can be, however, very different from the nominal one and strictly dependent on the features of the installation site. Based on these considerations, a turbine optimization oriented to maximize the annual energy yield, instead of the maximum power, is thought to represent a more interesting solution. With this goal in mind, 21,600 test cases of H-Darrieus rotors were compared on the basis of their energy-yield capabilities for different annual wind distributions in terms of average speed. The wind distributions were combined with the predicted performance maps of the rotors obtained with a specifically developed numerical code based on a Blade Element Momentum (BEM) approach. The influence on turbine performance of the cut-in speed was accounted for, as well as the limitations due to structural loads (i.e. maximum rotational speed and maximum wind velocity). The analysis, carried out in terms of dimensionless parameters, highlighted the aerodynamic configurations able to ensure the largest annual energy yield for each wind distribution and set of aerodynamic constraints.

Alessandro Bianchini; Giovanni Ferrara; Lorenzo Ferrari

2015-01-01T23:59:59.000Z

362

Study on optimization model of energy collection efficiency and its power generation benefit evaluation of landfill gas  

Science Journals Connector (OSTI)

An optimization model for joint biogas energy collection efficiency that targets the prediction model for landfill gas output dynamics and the optimization model for gas well output has been established. The model was used to comprehensively analyze and evaluate the collection efficiency of a landfill gas well together with the long-term monitoring the gas output of the gas well within Chenjiachong Landfill. The collection efficiency increased by more than 50% than the original collection of landfill biogas and the power generation efficiency increased more than two times after the reservoir area of the landfill was optimized and regulated.

Xue Qiang

2013-01-01T23:59:59.000Z

363

Calculation of the geometric parameters of rotary rolling by using the automated design system autodesk inventor  

Science Journals Connector (OSTI)

A method is proposed for calculating the profile of the rolls of a rotary rolling mill with the use of the 3D-modeling program Autodesk Inventor. The universality of the method is...

S. M. Gorbatyuk; V. A. Osadchii; E. Z. Tuktarov

2011-11-01T23:59:59.000Z

364

Method for determining effective flame emissivity in a rotary kiln incinerator burning solid waste  

Science Journals Connector (OSTI)

Temperature is the most important parameter for the improvement of combustion efficiency and the control of pollutants. In order to obtain accurate flame temperatures in a rotary kiln incinerator using non-int...

Jin-cai Du; Qun-xing Huang; Jian-hua Yan

2012-12-01T23:59:59.000Z

365

James Walker develops Walkersele D8 – a new rotary lip seal for marine propulsion systems  

Science Journals Connector (OSTI)

Walkersele D8 is a new design of rotary lip seal developed by James Walker & Co Ltd for use in marine propulsion systems to protect bearings from water ingress or prevent lubricant from leaking into the marine environment.

2012-01-01T23:59:59.000Z

366

Control of Greenhouse Gas Emissions by Optimal DER Technology Investment and Energy Management in Zero-Net-Energy Buildings  

E-Print Network (OSTI)

and Energy Management in Zero-Net-Energy Buildings Michaeland Energy Management in Zero-Net-Energy Buildings 1 Michaelgoal of achieving zero-net-energy commercial buildings (

Stadler, Michael

2010-01-01T23:59:59.000Z

367

A Full Demand Response Model in Co-Optimized Energy and  

SciTech Connect

It has been widely accepted that demand response will play an important role in reliable and economic operation of future power systems and electricity markets. Demand response can not only influence the prices in the energy market by demand shifting, but also participate in the reserve market. In this paper, we propose a full model of demand response in which demand flexibility is fully utilized by price responsive shiftable demand bids in energy market as well as spinning reserve bids in reserve market. A co-optimized day-ahead energy and spinning reserve market is proposed to minimize the expected net cost under all credible system states, i.e., expected total cost of operation minus total benefit of demand, and solved by mixed integer linear programming. Numerical simulation results on the IEEE Reliability Test System show effectiveness of this model. Compared to conventional demand shifting bids, the proposed full demand response model can further reduce committed capacity from generators, starting up and shutting down of units and the overall system operating costs.

Liu, Guodong [ORNL; Tomsovic, Kevin [University of Tennessee, Knoxville (UTK)

2014-01-01T23:59:59.000Z

368

Intensity and energy modulated radiotherapy with proton beams: Variables affecting optimal prostate plan  

Science Journals Connector (OSTI)

Inverse planning for intensity- and energy-modulated radiotherapy (IEMRT) with proton beams involves the selection of (i) the relative importance factors to control the relative importance of the target and sensitive structures (ii) an appropriate energy resolution to achieve an acceptable depth modulation (iii) an appropriate beamlet width to modulate the beam laterally and (iv) a sufficient number of beams and their orientations. In this article we investigate the influence of these variables on the optimized dose distribution of a simulated prostate cancer IEMRT treatment. Good dose conformation for this prostate case was achieved using a constellation of I factors for the target rectum bladder and normal tissues of 500 50 15 and 1 respectively. It was found that for an active beam delivery system the energy resolution should be selected on the basis of the incident beams’ energy spread (? E ) and the appropriate energy resolution varied from 1 MeV at ? E =0.0? to ?5? MeV at ? E =2.0? MeV . For a passive beam delivery system the value of the appropriate depth resolution for inverse planning may not be critical as long as the value chosen is at least equal to one-half the FWHM of the primary beam Bragg peak. Results indicate that the dose grid element dimension should be equal to or no less than 70% of the beamlet width. For this prostate case we found that a maximum of three to four beam ports is required since there was no significant advantage to using a larger number of beams. However for a small number (?4) of beams the selection of beam orientations while having only a minor effect on target coverage strongly influenced the sensitive structure sparing and normal tissue integral dose.

Collins Yeboah; George A. Sandison; Alexei V. Chvetsov

2002-01-01T23:59:59.000Z

369

Conceptual Design of Optimized Fossil Energy Systems with Capture and Sequestration of Carbon Dioxide  

SciTech Connect

In this final report, we describe research results from Phase 2 of a technical/economic study of fossil hydrogen energy systems with carbon dioxide (CO{sub 2}) capture and storage (CCS). CO{sub 2} capture and storage, or alternatively, CO{sub 2} capture and sequestration, involves capturing CO{sub 2} from large point sources and then injecting it into deep underground reservoirs for long-term storage. By preventing CO{sub 2} emissions into the atmosphere, this technology has significant potential to reduce greenhouse gas (GHG) emissions from fossil-based facilities in the power and industrial sectors. Furthermore, the application of CCS to power plants and hydrogen production facilities can reduce CO{sub 2} emissions associated with electric vehicles (EVs) and hydrogen fuel cell vehicles (HFCVs) and, thus, can also improve GHG emissions in the transportation sector. This research specifically examines strategies for transitioning to large-scale coal-derived energy systems with CCS for both hydrogen fuel production and electricity generation. A particular emphasis is on the development of spatially-explicit modeling tools for examining how these energy systems might develop in real geographic regions. We employ an integrated modeling approach that addresses all infrastructure components involved in the transition to these energy systems. The overall objective is to better understand the system design issues and economics associated with the widespread deployment of hydrogen and CCS infrastructure in real regions. Specific objectives of this research are to: Develop improved techno-economic models for all components required for the deployment of both hydrogen and CCS infrastructure, Develop novel modeling methods that combine detailed spatial data with optimization tools to explore spatially-explicit transition strategies, Conduct regional case studies to explore how these energy systems might develop in different regions of the United States, and Examine how the design and cost of coal-based H{sub 2} and CCS infrastructure depend on geography and location.

Nils Johnson; Joan Ogden

2010-12-31T23:59:59.000Z

370

Optimization of Ventilation Energy Demands and Indoor Air Quality in High-Performance Homes  

SciTech Connect

High-performance homes require that ventilation energy demands and indoor air quality (IAQ) be simultaneously optimized. We attempted to bridge these two areas by conducting tests in a research house located in Oak Ridge, TN, that was 20 months old, energy-efficient (i.e., expected to consume 50% less energy than a house built per the 2006 IRC), tightly-built (i.e., natural ventilation rate ~0.02 h-1), unoccupied, and unfurnished. We identified air pollutants of concern in the test home that could generally serve as indicators of IAQ, and conduced field experiments and computer simulations to determine the effectiveness and energy required by various techniques that lessened the concentration of these contaminants. Formaldehyde was selected as the main pollutant of concern among the contaminants that were sampled in the initial survey because it was the only compound that showed concentrations that were greater than the recommended exposure levels. Field data indicate that concentrations were higher during the summer primarily because emissions from sources rise with increases in temperature. Furthermore, supply ventilation and gas-phase filtration were effective means to reduce formaldehyde concentrations; however, exhaust ventilation had minimal influence on this pollutant. Results from simulations suggest that formaldehyde concentrations obtained while ventilating per ASHRAE 62.2-2010 could be decreased by about 20% from May through September through three strategies: 1) increasing ASHRAE supply ventilation by a factor of two, 2) reducing the thermostat setpoint from 76 to 74 F, or 3) running a gas-phase filtration system while decreasing supply ventilation per ASHRAE by half. In the mixed-humid climate of Oak Ridge, these strategies caused increases in electricity cost of ~$5 to ~$15/month depending on outdoor conditions.

Hun, Diana E [ORNL; Jackson, Mark C [University of Texas at Austin; Shrestha, Som S [ORNL

2014-01-01T23:59:59.000Z

371

Sway control method and system for rotary cranes  

DOE Patents (OSTI)

Methods and apparatuses for reducing the oscillatory motion of rotary crane payloads during operator-commanded or computer-controlled maneuvers. An Input-shaping filter receives input signals from multiple operator input devices and converts them into output signals readable by the crane controller to dampen the payload tangential and radial sway associated with rotation of the jib. The input signals are characterized by a hub rotation trajectory .gamma.(t), which includes a jib angular acceleration .gamma., a trolley acceleration x, and a load-line length velocity L. The system state variables are characterized by a tangential rotation angle .theta.(t) and a radial rotation angle .phi.(t) of the load-line. The coupled equations of motion governing the filter are non-linear and configuration-dependent. In one embodiment, a filter is provided between the operator and the crane for filtering undesired frequencies from the angular .gamma. and trolley x velocities to suppress payload oscillation. In another embodiment, crane commands are computer generated and controlled to suppress vibration of the payload using a postulated asymmetrical shape for the acceleration profiles of the jib, which profiles are uniquely determined by a set of parameters (including the acceleration pulse amplitude and the duration and coast time between pulses), or a dynamic programming approach.

Robinett, Rush D. (Tijeras, NM); Parker, Gordon G. (Houghton, MI); Feddema, John T. (Albuquerque, NM); Dohrmann, Clark R. (Albuquerque, NM); Petterson, Ben J. (Albuquerque, NM)

1999-01-01T23:59:59.000Z

372

Apparatus and methods for cooling and sealing rotary helical screw compressors  

DOE Patents (OSTI)

In a compression system which incorporates a rotary helical screw compressor, and for any type of gas or refrigerant, the working liquid oil is atomized through nozzles suspended in, and parallel to, the suction gas flow, or alternatively the nozzles are mounted on the suction piping. In either case, the aim is to create positively a homogeneous mixture of oil droplets to maximize the effectiveness of the working liquid oil in improving the isothermal and volumetric efficiencies. The oil stream to be atomized may first be degassed at compressor discharge pressure by heating within a pressure vessel and recovering the energy added by using the outgoing oil stream to heat the incoming oil stream. The stripped gas is typically returned to the compressor discharge flow. In the preferred case, the compressor rotors both contain a hollow cavity through which working liquid oil is injected into channels along the edges of the rotors, thereby forming a continuous and positive seal between the rotor edges and the compressor casing. In the alternative method, working liquid oil is injected either in the same direction as the rotor rotation or counter to rotor rotation through channels in the compressor casing which are tangential to the rotor edges and parallel to the rotor center lines or alternatively the channel paths coincide with the helical path of the rotor edges. 14 figs.

Fresco, A.N.

1997-08-05T23:59:59.000Z

373

Apparatus and methods for cooling and sealing rotary helical screw compressors  

DOE Patents (OSTI)

In a compression system which incorporates a rotary helical screw compressor, and for any type of gas or refrigerant, the working liquid oil is atomized through nozzles suspended in, and parallel to, the suction gas flow, or alternatively the nozzles are mounted on the suction piping. In either case, the aim is to create positively a homogeneous mixture of oil droplets to maximize the effectiveness of the working liquid oil in improving the isothermal and volumetric efficiencies. The oil stream to be atomized may first be degassed at compressor discharge pressure by heating within a pressure vessel and recovering the energy added by using the outgoing oil stream to heat the incoming oil stream. The stripped gas is typically returned to the compressor discharge flow. In the preferred case, the compressor rotors both contain a hollow cavity through which working liquid oil is injected into channels along the edges of the rotors, thereby forming a continuous and positive seal between the rotor edges and the compressor casing. In the alternative method, working liquid oil is injected either in the same direction as the rotor rotation or counter to rotor rotation through channels in the compressor casing which are tangential to the rotor edges and parallel to the rotor centerlines or alternatively the channel paths coincide with the helical path of the rotor edges.

Fresco, Anthony N. (P.O. Box 734, Upton, NY 11973)

1997-01-01T23:59:59.000Z

374

OpenPEOPLE D2.8 Ergonomic Page 1/37 Open Power and Energy Optimization Platform and Estimator  

E-Print Network (OSTI)

OpenPEOPLE D2.8­ Ergonomic Page 1/37 OpenPEOPLE Open Power and Energy Optimization Platform and Estimator Internal Deliverable 2.8 Ergonomics Document Manager Contributors Checked by Name Jonathan PONROY ergonomic for the OpenPEOPLE software platform. inria-00624000,version1-16Sep2011 #12;OpenPEOPLE D2

Paris-Sud XI, Université de

375

Abstract --The growth of non-conventional renewable energies involves a new challenge for optimal network expansion. A better  

E-Print Network (OSTI)

1 Abstract -- The growth of non-conventional renewable energies involves a new challenge for optimal network expansion. A better integration of renewables will be allowed by determining transmission assets necessary for a reliable, affordable and sustainable operation, and even more important

Catholic University of Chile (Universidad CatĂłlica de Chile)

376

Cost and Energy Savings Using an Optimal Design of Reverse Osmosis Membrane Pretreatment for Dilute Bioethanol Purification  

Science Journals Connector (OSTI)

Cost and Energy Savings Using an Optimal Design of Reverse Osmosis Membrane Pretreatment for Dilute Bioethanol Purification ... All equipment costs and sizing are modeled using the correlations from Seider et al.(52) while the RO membrane cost is from Baker and Lokhandwala. ...

Pakkapol Kanchanalai; Ryan P. Lively; Matthew J. Realff; Yoshiaki Kawajiri

2013-07-02T23:59:59.000Z

377

Optimizing the Low Temperature Cooling Energy Supply: Experimental Performance of an Absorption Chiller, a Compression Refrigeration Machine and Direct Cooling - a Comparison  

E-Print Network (OSTI)

A strategy to optimize the low temperature cooling energy supply of a newly build office building is discussed against the background of a changing energy system. It is focused on, what production way - Direct Cooling, the Compression Refrigeration...

Uhrhan, S.; Gerber, A.

2012-01-01T23:59:59.000Z

378

Energy systems planning and GHG-emission control under uncertainty in the province of Liaoning, China – A dynamic inexact energy systems optimization model  

Science Journals Connector (OSTI)

Abstract In this study, a dynamic interval-parameter optimization model (DIP-REM) has been developed for supporting long-term energy systems planning in association with GHG mitigation in the region of Liaoning province. The model can describe Liaoning province energy planning systems as networks of a series of energy flows, transferring extracted/imported energy resources to end users through a variety of conversion and transmission technologies over a number of periods and address the problem of GHG-emission reduction within a general energy planning systems framework under uncertainty. Two scenarios (including a reference case) are considered corresponding to different GHG-emission mitigation levels for in-depth analysis of interactions existing among energy, socio-economy and environment in the Liaoning province. Useful solutions for Liaoning province energy planning systems have been generated, reflecting trade-offs among energy-related, environmental and economic considerations. The results can not only provide optimal energy resource/service allocation and capacity-expansion plans, but also help decision-makers identify desired policies for GHG mitigation with a cost-effective manner in the region of Liaoning province. Thus, it can be used by decision makers as an effective technique in examining and visualizing impacts of energy and environmental policies, regional development strategies and emission reduction measures within an integrated and dynamic framework.

J. Liu; Q.G. Lin; G.H. Huang; Q. Wu; H.P. Li

2013-01-01T23:59:59.000Z

379

Optimization of Operating Parameters for Minimum Mechanical Specific Energy in Drilling  

SciTech Connect

Efficiency in drilling is measured by Mechanical Specific Energy (MSE). MSE is the measure of the amount of energy input required to remove a unit volume of rock, expressed in units of energy input divided by volume removed. It can be expressed mathematically in terms of controllable parameters; Weight on Bit, Torque, Rate of Penetration, and RPM. It is well documented that minimizing MSE by optimizing controllable factors results in maximum Rate of Penetration. Current methods for computing MSE make it possible to minimize MSE in the field only through a trial-and-error process. This work makes it possible to compute the optimum drilling parameters that result in minimum MSE. The parameters that have been traditionally used to compute MSE are interdependent. Mathematical relationships between the parameters were established, and the conventional MSE equation was rewritten in terms of a single parameter, Weight on Bit, establishing a form that can be minimized mathematically. Once the optimum Weight on Bit was determined, the interdependent relationship that Weight on Bit has with Torque and Penetration per Revolution was used to determine optimum values for those parameters for a given drilling situation. The improved method was validated through laboratory experimentation and analysis of published data. Two rock types were subjected to four treatments each, and drilled in a controlled laboratory environment. The method was applied in each case, and the optimum parameters for minimum MSE were computed. The method demonstrated an accurate means to determine optimum drilling parameters of Weight on Bit, Torque, and Penetration per Revolution. A unique application of micro-cracking is also presented, which demonstrates that rock failure ahead of the bit is related to axial force more than to rotation speed.

Hamrick, Todd

2011-05-25T23:59:59.000Z

380

Predicting and optimization of energy consumption using system dynamics-fuzzy multiple objective programming in world heritage areas  

Science Journals Connector (OSTI)

Energy consumption and efficiency are important in regional low-carbon economic development and environmental protection. This paper provides a system dynamics and fuzzy multi-objective programming integrated approach for the prediction of energy consumption and CO2 emissions at a regional level. First, a general system dynamics model is constructed to analyze an economy-energy system. To deal with the uncertainties and optimize the parameters in the system, a fuzzy multiple objective programming model is used. This decision support model is then applied to predict the energy consumption of a world heritage area in China during 2010–2020. The results reveal that the energy consumption and CO2 emissions increase dramatically with rapid economic growth. In the scenario herein considered, which is based on the proposed optimization model, a 19.32% reduction was found in the energy intensity decreases from 0.88 tce/104 RMB to 0.71 tce/104 RMB, and a 23.26% reduction in the CO2 emission intensity, from 2.15 t/104 RMB to 1.65 t/104 RMB. Policy suggestions such as adjusting the industrial structure, enhancing local hydro-power and renewable energy and increasing investment in energy technology and efficiency are indicated for the promotion of a low-carbon oriented economy in world heritage areas.

Zhibin Wu; Jiuping Xu

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Rotary seal with enhanced lubrication and contaminant flushing  

DOE Patents (OSTI)

A resilient, ring shaped interference-type hydrodynamic rotary seal having waves on the lubricant side which provide increased film thickness and flushing action by creating contact pressure induced angulated restrictions formed by abrupt restrictive diverters. The angulated restrictions are defined by projecting ridges, corners at the trailing edge of the waves, or simply by use of a converging shape at the trailing edge of the waves which is more abrupt than the gently converging hydrodynamic inlet shape at the leading edge of the waves. The abrupt restrictive diverter performs two functions; a restricting function and a diverting function. The angulated restrictions cause a local film thickness restriction which produces a damming effect preventing a portion of the lubricant from leaking out of the dynamic sealing interface at the trailing edge of the wave, and results in a much thicker lubricant film thickness under the waves. This contributes to more film thickness in the remainder of the dynamic sealing interface toward the environment because film thickness tends to decay gradually rather than abruptly due to the relative stiffness of the seal material. Because of the angle of the abrupt restrictive diverter relative to the relative rotation direction, in conjunction with the restriction or damming effect, a strong diverting action is produced which pumps lubricant across the dynamic sealing interface toward the environment. The lubricant diversion is caused by the component of the rotational velocity tangent to the abrupt restrictive diverter. The component of rotational velocity normal to the abrupt restrictive diverter causes a portion of the lubricant film to be pumped past the abrupt restrictive diverter, thereby assuring adequate lubrication thereof.

Dietle, Lannie L. (Sugar Land, TX)

2000-01-01T23:59:59.000Z

382

Reliability enhancement of a radial distribution system using coordinated aggregation based particle swarm optimization considering customer and energy based indices  

Science Journals Connector (OSTI)

This paper describes an algorithm for optimum modifications for failure rate and repair time for a radial electrical distribution system. The modifications are with respect to a penalty cost function minimization. The cost function has been minimized subject to the energy based and customer oriented indices, i.e. AENS, SAIFI, SAIDI and CAIDI. Coordinated aggregation based particle swarm optimization (CAPSO) has been used for optimization. The algorithm has been implemented on a sample radial distribution system. The results obtained have been compared with those obtained using PSO.

Rajesh Arya; S.C. Choube; L.D. Arya; D.P. Kothari

2012-01-01T23:59:59.000Z

383

Building Distributed Energy Performance Optimization for China a Regional Analysis of Building Energy Costs and CO2 Emissions  

E-Print Network (OSTI)

Efficiency and Renewable Energy, Building TechnologiesEfficiency and Renewable Energy, Building TechnologiesBuilding Stock. Golden, Colorado: National Renewable Energy

Feng, Wei

2013-01-01T23:59:59.000Z

384

Building Distributed Energy Performance Optimization for China a Regional Analysis of Building Energy Costs and CO2 Emissions  

E-Print Network (OSTI)

Summer Study on Energy Efficiency in Buildings August 12,Standard for Energy Efficiency of Public Buildings. Energyfor Energy Efficiency of Residential Buildings in Hot Summer

Feng, Wei

2013-01-01T23:59:59.000Z

385

Building Distributed Energy Performance Optimization for China a Regional Analysis of Building Energy Costs and CO2 Emissions  

E-Print Network (OSTI)

3 Commercial and Residential Building Site Energy Usagecommercial and residential prototype buildings discussed in the previous section is simulated in EnergyPlus (DOE, 2011). The energy usage

Feng, Wei

2013-01-01T23:59:59.000Z

386

An integrated energy–emergy approach to building form optimization: Use of EnergyPlus, emergy analysis and Taguchi-regression method  

Science Journals Connector (OSTI)

Abstract This research presents a new methodology of environmental building design with an integrated energy–emergy (spelled with an “m”) approach to study building form optimization in the schematic phases. In architecture, selection of sustainability assessment methods critically affects design goals, favoring or restricting choices designers can make. A building subsumes matter and energy to support human lives, but current building performance indicators are still hard to equate technical sides and human dominant sides of various scales in a synthetic metric. Moreover, in order to achieve global sustainability in a building, as a part of the whole built environment, it is necessary to integrate energy and environmental impacts at the highest scope of analysis. Emergy analysis coupled with building energy simulation can be suggested as a holistic indicator for architectural design process. To test the proposed method, a pilot study with a mid-size office building evaluates the consequences of early design decisions such as basic geometry, aspect ratio, window-wall ratio, construction types, etc. The integrated energy–emergy approach to building form optimization consists of three modules namely, Building Energy Simulation (BES) module, Building \\{EMergy\\} Analysis (BEMA) module, and (iii) MetaModel Development (MMD) module. The BES module uses the EnergyPlus tool for whole building energy analysis, while the BEMA module employs analytical methods to estimate emergy quantities, and the MMD module employs the Taguchi method to develop a metamodel for faster and easier whole building emergy simulation. The metamodel developed using Taguchi-ANOVA method for building form optimization was validated with analytical test results to accelerate environmental design decision-making. This study demonstrates possibility of wider applications of emergy synthesis to building energy research and facilitates practical use of emergy simulation in the environmental design process.

Hwang Yi; Ravi S. Srinivasan; William W. Braham

2015-01-01T23:59:59.000Z

387

HumanWildlife Interactions 8(2):251260, Fall 2014 Wildlife strikes with U.S. military rotary-  

E-Print Network (OSTI)

, but unstudied, physical hazard to military rotary-wing aircraft used in conducting overseas flight operations to military rotary-wing aircraft during these operations has been conducted. The objectives of this project deployed overseas to conduct a variety of noncombat and combat missions. Our objective was to conduct

388

Robust optimal sizing of an hybrid energy stand-alone system  

E-Print Network (OSTI)

Mar 25, 2014 ... Abstract: This paper deals with the optimal design of a stand-alone hybrid system composed of wind turbines, solar photovoltaic panels and ...

Alain Billionnet

2014-03-25T23:59:59.000Z

389

Adaptive Real-Time Optimal Dispatch of Privately Owned Energy Storage Systems.  

E-Print Network (OSTI)

??In this thesis, a real-time optimal dispatching (RTOD) algorithm is developed by formulating a mixed integer linear programming problem to determine charging and discharging power… (more)

Khani, Hadi

2014-01-01T23:59:59.000Z

390

Derivative Free Optimization Methods for Optimizing Stirrer ...  

E-Print Network (OSTI)

It also gives a comparison of the two optimization algorithms. Key words: Energy, Numerical Optimization, Derivative-Free Optimization,. Computational Fluid ... numerical simulations are needed for the computation of the fluid flow inside the stirrer for ..... Optimization Methods and Software, 20 (2005) 493-508. [6] A. R. Conn ...

2007-02-01T23:59:59.000Z

391

Optimal Deployment of Thermal Energy Storage under Diverse Economic and Climate Conditions  

E-Print Network (OSTI)

Deployment  of  Thermal  Energy   Storage  under  Diverse  Dincer I. On thermal energy storage systems and applicationsin research on cold thermal energy storage, International

DeForest, Nicolas

2014-01-01T23:59:59.000Z

392

Green queue : a framework for selecting energy optimal DVFS congurations in large scale MPI applications  

E-Print Network (OSTI)

settings . . . . . Green Queue Energy Savings with VariousApplication Figure 4.3: Green Queue Energy Savings withBlind Scaling Relative Energy Green Queue Relative Delay

Peraza, Joshua

2012-01-01T23:59:59.000Z

393

Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios  

E-Print Network (OSTI)

Factors are Most Supportive to Green Energy Penetrationare Most Supportive to Green Energy Penetration Introductionin the di?usion of green energy technology. After this

Meininger, Aaron G.

2012-01-01T23:59:59.000Z

394

Cost and Energy Consumption Optimization of Product Manufacture in a Flexible Manufacturing System  

E-Print Network (OSTI)

Selection for Energy Consumption Reduction in Machining,Dornfeld, D. (2011): Energy Consumption Characterization and2011): Unit Process Energy Consumption Models for Material

Diaz, Nancy; Dornfeld, David

2012-01-01T23:59:59.000Z

395

Optimal Technology Investment and Operation in Zero-Net-Energy Buildings with Demand Response  

E-Print Network (OSTI)

and Operation in Zero-Net- Energy Buildings with Demandand Operation in Zero-Net-Energy Buildings with Demandhas launched the Zero-Net- Energy (ZNE) Commercial Building

Stadler, Michael

2009-01-01T23:59:59.000Z

396

Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios  

E-Print Network (OSTI)

152 B.1 World Energy Production by Source . . . . .Global Warming Begun Table B.1: World Energy Production bySource World Energy Production Source: Percentage: Petroleum

Meininger, Aaron G.

2012-01-01T23:59:59.000Z

397

Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios  

E-Print Network (OSTI)

di?usion of renewable energy production and the politicalso as to make renewable energy production market competitivecertain type of renewable energy production is possible. As

Meininger, Aaron G.

2012-01-01T23:59:59.000Z

398

Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios  

E-Print Network (OSTI)

T. (2005), “The Cost of Geothermal Energy in the Western USloop; for the case of geothermal energy one more supportingtechnologies and geothermal energy require no fuel outlays

Meininger, Aaron G.

2012-01-01T23:59:59.000Z

399

Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios  

E-Print Network (OSTI)

levels and growth rates of renewable energy. With respect tolevels and growth rates, of renewable energy. With respectconcerning the growth of renewable energies. What we did see

Meininger, Aaron G.

2012-01-01T23:59:59.000Z

400

Optimal Control of Distributed Energy Resources and Demand Response under Uncertainty  

E-Print Network (OSTI)

of Distributed Energy Resources and Demand Response underof Distributed Energy Resources and Demand Response underof Distributed Energy Resources and Demand Response under

Siddiqui, Afzal

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios  

E-Print Network (OSTI)

152 B.1 World Energy Production by Source . . . . .di?usion of renewable energy production and the politicalof fossil fuels in its energy production mix, with special

Meininger, Aaron G.

2012-01-01T23:59:59.000Z

402

Dual-energy contrast-enhanced breast tomosynthesis: optimization of beam quality for dose and image quality  

Science Journals Connector (OSTI)

Dual-energy contrast-enhanced breast tomosynthesis is a promising technique to obtain three-dimensional functional information from the breast with high resolution and speed. To optimize this new method, this study searched for the beam quality that maximized image quality in terms of mass detection performance. A digital tomosynthesis system was modeled using a fast ray-tracing algorithm, which created simulated projection images by tracking photons through a voxelized anatomical breast phantom containing iodinated lesions. The single-energy images were combined into dual-energy images through a weighted log subtraction process. The weighting factor was optimized to minimize anatomical noise, while the dose distribution was chosen to minimize quantum noise. The dual-energy images were analyzed for the signal difference to noise ratio (SdNR) of iodinated masses. The fast ray-tracing explored 523?776 dual-energy combinations to identify which yields optimum mass SdNR. The ray-tracing results were verified using a Monte Carlo model for a breast tomosynthesis system with a selenium-based flat-panel detector. The projection images from our voxelized breast phantom were obtained at a constant total glandular dose. The projections were combined using weighted log subtraction and reconstructed using commercial reconstruction software. The lesion SdNR was measured in the central reconstructed slice. The SdNR performance varied markedly across the kVp and filtration space. Ray-tracing results indicated that the mass SdNR was maximized with a high-energy tungsten beam at 49 kVp with 92.5 ”m of copper filtration and a low-energy tungsten beam at 49 kVp with 95 ”m of tin filtration. This result was consistent with Monte Carlo findings. This mammographic technique led to a mass SdNR of 0.92 ± 0.03 in the projections and 3.68 ± 0.19 in the reconstructed slices. These values were markedly higher than those for non-optimized techniques. Our findings indicate that dual-energy breast tomosynthesis can be performed optimally at 49 kVp with alternative copper and tin filters, with reconstruction following weighted subtraction. The optimum technique provides best visibility of iodine against structured breast background in dual-energy contrast-enhanced breast tomosynthesis.

Ehsan Samei; Robert S Saunders Jr

2011-01-01T23:59:59.000Z

403

Optimizing Distributed Energy Resources and Building Retrofits with the Strategic DER-CAModel  

E-Print Network (OSTI)

solar thermal, combined heat and power, or energy storage.thermal storage and solar- To be published in APPLIED ENERGY

Stadler, Michael

2014-01-01T23:59:59.000Z

404

Optimal Technology Investment and Operation in Zero-Net-Energy Buildings with Demand Response  

E-Print Network (OSTI)

on expensive solar-based equipment and energy storagechillers, energy storage, or solar-based technologies are

Stadler, Michael

2009-01-01T23:59:59.000Z

405

This is a preprint of the following article, which is available from http://mdolab.engin.umich.edu/content/ multidisciplinary-design-optimization-offshore-wind-turbines-minimum-levelized-cost-energy. The published  

E-Print Network (OSTI)

://mdolab.engin.umich.edu/content/ multidisciplinary-design-optimization-offshore-wind-turbines-minimum-levelized-cost-energy. The published article.A.M. van Kuik. Multidisciplinary Design Optimization of Offshore Wind Turbines for Minimum Levelized Cost of Energy. Renewable Energy (In press), 2014 Multidisciplinary Design Optimization of Offshore Wind Turbines

Papalambros, Panos

406

Control of Greenhouse Gas Emissions by Optimal DER Technology Investment and Energy Management in Zero-Net-Energy Buildings  

E-Print Network (OSTI)

expensive solar-based equipment and energy storage Interceptchiller, energy storage, or solar-based technologies aresolar thermal system is mostly used to supply the heat storage and absorption chiller with energy.

Stadler, Michael

2010-01-01T23:59:59.000Z

407

DOE Announces Webinars on Building Energy Optimization Tool Training, Placing Utility Energy Service Contract Task Orders, and More  

Office of Energy Efficiency and Renewable Energy (EERE)

EERE offers webinars to the public on a range of subjects, from adopting the latest energy efficiency and renewable energy technologies to training for the clean energy workforce. View this week's webinars.

408

Building Distributed Energy Performance Optimization for China a Regional Analysis of Building Energy Costs and CO2 Emissions  

E-Print Network (OSTI)

Analysis of Building Energy Costs and CO 2 Emissions WeiAnalysis of Building Energy Costs and CO 2 Emissions Weiwhich minimizes building energy cost or CO 2 emissions, or a

Feng, Wei

2013-01-01T23:59:59.000Z

409

Optimization Online - Multistage Adaptive Robust Optimization for ...  

E-Print Network (OSTI)

Sep 5, 2014 ... ... with the increasing penetration of wind and solar power generation has ... Keywords: Electric energy systems, multistage robust optimization, ... Multistage Adaptive Robust Optimization for the Unit Commitment Problem.

Alvaro Lorca

2014-09-05T23:59:59.000Z

410

Control of Greenhouse Gas Emissions by Optimal DER Technology Investment and Energy Management in Zero-Net-Energy Buildings  

E-Print Network (OSTI)

of PV panels, solar thermal equipment, and storage systems.chiller, energy storage, or solar-based technologies areexpensive solar-based equipment and energy storage Intercept

Stadler, Michael

2010-01-01T23:59:59.000Z

411

Solar Energy Concentrators and their Optimization and Analysis with the OptisWorks Solar Package  

Science Journals Connector (OSTI)

Optis has developed tools put together in the OptisWorks Solar Package which can change the sun position by macros calculating and optimizing the efficiency of such concentrators based...

Hasna, Günther

412

Power Control and Optimization of Photovoltaic and Wind Energy Conversion Systems /  

E-Print Network (OSTI)

be realized by capturing wind power at altitudes over the2011. [2] ——, “High altitude wind power systems: A survey onOckels, “Optimal cross-wind towing and power generation with

Ghaffari, Azad

2013-01-01T23:59:59.000Z

413

Optimal Sizing Design for Hybrid Renewable Energy Systems in Rural Areas  

Science Journals Connector (OSTI)

Small-sized hybrid wind-hydro-solar power generation systems may be designed to solve the power ... Optimal design models are developed to design the hybrid generation systems including battery banks and to provi...

Yu Fu; Jianhua Yang; Tingting Zuo

2011-01-01T23:59:59.000Z

414

Optimal Deployment of Thermal Energy Storage under Diverse Economic and Climate Conditions  

E-Print Network (OSTI)

solar heat gain coefficient (SHGC) U-factor Walls W/m K U-m K U-factor Windows W/m K SHGC 3.2. DER-CAM Optimization In

DeForest, Nicolas

2014-01-01T23:59:59.000Z

415

An introduction to API 682 shaft sealing for centrifugal and rotary pumps  

SciTech Connect

Seal failures in refineries represents between 5,000 and 10,000 dollars in maintenance costs. The lack of an industry standard approach has resulted in high-stocking cost, high maintenance costs, and complicated populations of seals. The API has offered API 682, Shaft Sealing Systems for Centrifugal and Rotary Pumps. This report discusses the benefits of API 682.

Dufour, J.W. [Amoco Oil Company, Chicago, IL (United States); Jones, R.L. [Shell Oil Company, Houston, TX (United States)

1994-11-01T23:59:59.000Z

416

Operability test report for rotary mode core sampling system number 3  

SciTech Connect

This report documents the successful completion of operability testing for the Rotary Mode Core Sampling (RMCS) system {number_sign}3. The Report includes the test procedure (WHC-SD-WM-OTP-174), exception resolutions, data sheets, and a test report summary.

Corbett, J.E.

1996-03-01T23:59:59.000Z

417

Design optimization of an out-of-plane gap-closing electrostatic Vibration Energy Harvester (VEH) with a limitation on the output voltage  

Science Journals Connector (OSTI)

This paper presents a simple analytical method to optimize the efficiency of an electrostatic out-of-plane gap-closing (OPGC) Vibration Energy Harvesters (VEH). For the first time the electrical and mechanical behaviours of the transducer are addressed ... Keywords: Electrostatic transduction, Energy conversion, MEMS, Microtechnology, Power generation, Vibration energy harvesting/scavenging

R. Guillemet; P. Basset; D. Galayko; T. Bourouina

2012-04-01T23:59:59.000Z

418

arXiv:1204.1240v1[cs.IT]5Apr2012 1 Optimal Save-Then-Transmit Protocol for Energy  

E-Print Network (OSTI)

arXiv:1204.1240v1[cs.IT]5Apr2012 1 Optimal Save-Then-Transmit Protocol for Energy Harvesting a fraction of time (dubbed the save-ratio) is devoted exclusively to energy harvesting, with the remaining to validate our proposed study. Index Terms Energy harvesting, save-then-transmit protocol, outage

Lim, Teng Joon

419

2004 Conference on Information Sciences and Systems, Princeton University, March 1719, 2004 Monetary Cost and Energy Use Optimization in Divisible Load  

E-Print Network (OSTI)

, we study the monetary cost and energy opti- mization of a single level tree network by using various is discussed. The mathematical analysis of the monetary cost and energy use in single level tree networks Monetary Cost and Energy Use Optimization in Divisible Load Processing Mequanint A. Moges, Leonardo A

Robertazzi, Thomas G.

420

Optimal Combination of Distributed Energy System in an Eco-Campus of Japan  

E-Print Network (OSTI)

the Second International Green Energy Conference. This workTHE SECOND INTERNATIONAL GREEN ENERGY CONFERENCE 25-29 JuneTHE SECOND INTERNATIONAL GREEN ENERGY CONFERENCE 25-29 June

Yang, Yongwen; Gao, Weijun; Zhou, Nan; Marnay, Chris

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Optimal Life Cycle Cost Design for an Energy Efficient Manufacturing Facility  

E-Print Network (OSTI)

Over the past twelve years, Texas Instruments has developed extensive energy management programs that have enabled them to reduce energy usage by 42%. Typically, these reductions have been a result of the application of microprocessor based energy...

Thompson, C. T.; Beach, W. P.

1985-01-01T23:59:59.000Z

422

Green queue : a framework for selecting energy optimal DVFS congurations in large scale MPI applications  

E-Print Network (OSTI)

the future of energy-performance trade-off via dvfs in hpcinformed trade-offs in performance and energy consumption.trade-off. Many researchers have used DVFS to either reduce total energy

Peraza, Joshua

2012-01-01T23:59:59.000Z

423

Optimizing Distributed Energy Resources and Building Retrofits with the Strategic DER-CAModel  

E-Print Network (OSTI)

with distributed energy resources as PV or solar thermal. Aswith distributed energy resources as PV or solar thermal.energy resources (DER) as e.g. photovoltaic, solar thermal

Stadler, Michael

2014-01-01T23:59:59.000Z

424

Optimal Combination of Distributed Energy System in an Eco-Campus of Japan  

E-Print Network (OSTI)

customer. 2) .The primary energy consumption and carbon e mo w s the annual primary energy consumption in e a c h c a se . T h e primary energy consumption of c a s e l is larger

Yang, Yongwen; Gao, Weijun; Zhou, Nan; Marnay, Chris

2006-01-01T23:59:59.000Z

425

Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios  

E-Print Network (OSTI)

T. (2005), “The Cost of Geothermal Energy in the Western USgeothermal energy require no fuel outlays and thus there is no fuel costcost, or highest return, is one made up entirely of the geothermal energy

Meininger, Aaron G.

2012-01-01T23:59:59.000Z

426

DOE Announces Webinars on Top Solar Tools, Building Energy Optimization Tool Training, and More  

Office of Energy Efficiency and Renewable Energy (EERE)

EERE offers webinars to the public on a range of subjects, from adopting the latest energy efficiency and renewable energy technologies to training for the clean energy workforce. View this week's webinars.

427

Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios  

E-Print Network (OSTI)

role in the Nigerian energy mix, with coal limited to a veryin any particular energy mix will then be a function of therisk pro?le of the state energy mix is due, in part, to a

Meininger, Aaron G.

2012-01-01T23:59:59.000Z

428

Conceptual Design of Optimized Fossil Energy Systems with Capture and Sequestration of Carbon Dioxide  

E-Print Network (OSTI)

methane compressor power requirement is: PcmH2/PcmCH4 = (HHVand methane. H2 pipeline energy flow = NG pipeline energy flow QH2 x HHV

Ogden, Joan

2004-01-01T23:59:59.000Z

429

Optimal Technology Investment and Operation in Zero-Net-Energy Buildings with Demand Response  

E-Print Network (OSTI)

chillers, energy storage, or solar-based technologies areand the huge solar thermal and heat storage system adoptionon expensive solar-based equipment and energy storage

Stadler, Michael

2009-01-01T23:59:59.000Z

430

Optimal Control of Distributed Energy Resources and Demand Response under Uncertainty  

E-Print Network (OSTI)

Energy Resources and Demand Response under Uncertainty AfzalEnergy Resources and Demand Response under Uncertainty ?DER in conjunction with demand response (DR): the expected

Siddiqui, Afzal

2010-01-01T23:59:59.000Z

431

Optimal investment and scheduling of distributed energy resources with uncertainty in electric vehicles driving schedules  

E-Print Network (OSTI)

energy storage, AC – Absorption Chiller, ST – solar thermalsolar conversion technologies is limited to available space; Eq. (32) enforces energy balance in storage

Cardoso, Goncalo

2014-01-01T23:59:59.000Z

432

Optimal Deployment of Thermal Energy Storage under Diverse Economic and Climate Conditions  

E-Print Network (OSTI)

2003;28;941-951. [20] EERE. EnergyPlus energy simulationafter_1980.html>. [33] EERE. 2012 IECC commercial scope and

DeForest, Nicolas

2014-01-01T23:59:59.000Z

433

Power Control and Optimization of Photovoltaic and Wind Energy Conversion Systems /  

E-Print Network (OSTI)

hydroelectric site. Compressed Air Energy Storage (CAES)energy storage means presently coming into use. In special circumstances, where pumping compressed air

Ghaffari, Azad

2013-01-01T23:59:59.000Z

434

Achieving Energy Efficiency on Networking Systems with Optimization Algorithms and Compressed Data Structures.  

E-Print Network (OSTI)

??To cope with the increasing quantity, capacity and energy consumption of transmission and routing equipment in the Internet, energy efficiency of communication networks has attracted… (more)

Yao, Yanjun

2014-01-01T23:59:59.000Z

435

Evaluation of Missed Energy Saving Opportunity Based on Illinois Home Performance Program Field Data: Homeowner Selected Upgrades vs. Cost-Optimized Solutions; Chicago, Illinois (Fact Sheet)  

SciTech Connect

Expanding on previous research by PARR, this study compares measure packages installed during 800 Illinois Home Performance with ENERGY STAR (IHP) residential retrofits to those recommended as cost-optimal by Building Energy Optimization (BEopt) modeling software. In previous research, cost-optimal measure packages were identified for fifteen Chicagoland single family housing archetypes, called housing groups. In the present study, 800 IHP homes are first matched to one of these fifteen housing groups, and then the average measures being installed in each housing group are modeled using BEopt to estimate energy savings. For most housing groups, the differences between recommended and installed measure packages is substantial. By comparing actual IHP retrofit measures to BEopt-recommended cost-optimal measures, missed savings opportunities are identified in some housing groups; also, valuable information is obtained regarding housing groups where IHP achieves greater savings than BEopt-modeled, cost-optimal recommendations. Additionally, a measure-level sensitivity analysis conducted for one housing group reveals which measures may be contributing the most to gas and electric savings. Overall, the study finds not only that for some housing groups, the average IHP retrofit results in more energy savings than would result from cost-optimal, BEopt-recommended measure packages, but also that linking home categorization to standardized retrofit measure packages provides an opportunity to streamline the process for single family home energy retrofits and maximize both energy savings and cost-effectiveness.

Not Available

2014-07-01T23:59:59.000Z

436

Evaluation of Missed Energy Saving Opportunity Based on Illinois Home Performance Program Field Data: Homeowner Selected Upgrades Versus Cost-Optimized Solutions  

SciTech Connect

Expanding on previous research by PARR, this study compares measure packages installed during 800 Illinois Home Performance with ENERGY STAR(R) (IHP) residential retrofits to those recommended as cost-optimal by Building Energy Optimization (BEopt) modeling software. In previous research, cost-optimal measure packages were identified for fifteen Chicagoland single family housing archetypes, called housing groups. In the present study, 800 IHP homes are first matched to one of these fifteen housing groups, and then the average measures being installed in each housing group are modeled using BEopt to estimate energy savings. For most housing groups, the differences between recommended and installed measure packages is substantial. By comparing actual IHP retrofit measures to BEopt-recommended cost-optimal measures, missed savings opportunities are identified in some housing groups; also, valuable information is obtained regarding housing groups where IHP achieves greater savings than BEopt-modeled, cost-optimal recommendations. Additionally, a measure-level sensitivity analysis conducted for one housing group reveals which measures may be contributing the most to gas and electric savings. Overall, the study finds not only that for some housing groups, the average IHP retrofit results in more energy savings than would result from cost-optimal, BEopt recommended measure packages, but also that linking home categorization to standardized retrofit measure packages provides an opportunity to streamline the process for single family home energy retrofits and maximize both energy savings and cost-effectiveness.

Yee, S.; Milby, M.; Baker, J.

2014-06-01T23:59:59.000Z

437

Integrated and Optimized Energy-Efficient Construction Package for a Community of Production Homes in the Mixed-Humid Climate  

SciTech Connect

Selection and integration of high performance home features are two sides of the same coin in energy efficient sustainable construction. Many advanced technologies are available for selection, but it is in the integration of these technologies into an affordable set of features that can be used on a production basis by builders, that ensures whole-house performance meets expectations. This research high performance home analyzes how a set of advanced technologies can be integrated into a durable and energy efficient house in the mixed-humid climate while remaining affordable to homeowners. The technical solutions documented in this report are the cornerstone of the builder's entire business model based on delivering high-performance homes on a production basis as a standard product offering to all price segments of the residential market. Home Innovation Research Labs partnered with production builder Nexus EnergyHomes (CZ 4). The builder plans to adopt the successful components of the energy solution package for all 55 homes in the community. The research objective was to optimize the builder's energy solution package based on energy performance and construction costs. All of the major construction features, including envelope upgrades, space conditioning system, hot water system, and solar electric system were analyzed. The information in this report can be used by builders and designers to evaluate options, and the integration of options, for increasing the efficiency of home designs in climate zone 4. The data also provide a point of reference for evaluating estimates of energy savings and costs for specific features.

Mallay, D.; Wiehagen, J.; Del Bianco, M.

2014-10-01T23:59:59.000Z

438

Optimal Transmission Range for Wireless Ad Hoc Networks Based on Energy Efficiency  

E-Print Network (OSTI)

, and security issues, we investigate the efficiency of energy consumption in wireless ad hoc networks-efficient mechanisms is of importance. In wireless ad hoc networks, energy consumption at each node is mainly due energy consumption of system operation and data processing, energy consumption economy of radio

Deng, Jing

439

Performance-aware Energy Optimization on Mobile Devices in Cellular Network  

E-Print Network (OSTI)

is to design an efficient online scheduling algorithm to minimize energy consumption both due to tail energy preferences. We prove that our proposed scheduling algorithm can make the energy consumption arbitrarily close Council of the Hong Kong Special Administrative Region, China (Project No. CityU 122512). Energy

Wang, Xin

440

Software Optimization for Performance, Energy, and Thermal Distribution: Initial Case Studies  

E-Print Network (OSTI)

of our time. Data center energy consumption is now 2-3% of total US electricity use and is increasing-level energy consumption. I. INTRODUCTION Energy efficiency is one of the central societal and technical issues- sired level of performance while reducing energy consumption. A closely related issue is thermal

Herbordt, Martin

Note: This page contains sample records for the topic "optimized rotary energy" 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

Optimal sizing of a hybrid energy system for a semi-arid climate using an evolutionary algorithm  

Science Journals Connector (OSTI)

The use of a genetic algorithm (GA) for optimal sizing of an off-grid hybrid renewable energy system (HRES) is reported. As a pre-feasibility analysis and to determine the appropriate HRES type to be studied, wind energy potential and solar irradiation are first examined for the considered region (Tehran, Iran). These are inputs of the algorithm, and are assessed throughout a year utilising statistical and temperature-based approaches. After identifying the appropriate system type, three scenarios with different system constraints are defined. Applying the GA for each scenario identifies the minimum initial investment costs and net present costs as well as the optimum size of the system components. The results suggest that one scenario (3) has the lowest net present cost and includes 36% renewable energy generation, making it superior to the other optimised system scenarios.

Majid Vafaeipour; Omid Rahbari; Marc A. Rosen; Farivar Fazelpour; Seyed Mohammadreza Heibati

2014-01-01T23:59:59.000Z

442

Measure it, See it, Manage it: Using Real Time Data to Benchmark,Optimize, and Sustain System Energy Efficiency  

SciTech Connect

Even after years of training and awareness building at thestate and national level, industrial cross-cutting systems (motor-driven,steam, process heating) continue to offer significant opportunities forenergy savings. The US Department of Energy estimates these remainingsavings at more than 7 percent of all industrial energy use. This paperpresents a different approach to promoting industrial system energyefficiency -- providing plant personnel with ready access to data uponwhich to base energy management decisions.In 2005, a Del Monte Foodsfruit processing plant in Modesto, California worked with LawrenceBerkeley National Laboratory (LBNL)to specify and purchase permanentinstrumentation for monitoring their compressed air system. This work,completed as part of a demonstration project under a State TechnologiesAdvancement Collaborative (STAC) grant, was designed to demonstrate theeffectiveness of enterprise energy management (EEM), which is predicatedon the assumption that the energy efficiency of existing, cross-cuttingindustrial systems (motor-driven, steam) can be improved by providingmanagement and operating personnel with real-time data on energy use. Theinitial STAC grant provided for the installation and some initialanalyses, but did not address the larger issue of integrating these newdata into an ongoing energy management program for the compressed airsystem.The California Energy Commission (CEC) decided to support furtheranalysis to identify potential for air system optimization. Through theCEC's Energy in Agriculture Program, a compressed air system audit wasperformed by Tom Taranto to: Measure and document the system's baselineand CASE Index of present operation; Establish methods to sustain anongoing CASE Index measure of performance; Use AIRMaster+ to analyzesupply side performance as compared to the CASE Index; Identify demandside opportunities for efficiency and performance improvement; Assesssupply / demand balance and energy reduction opportunities; Evaluate thepresent air compressor control strategy and potential improvement, andCollect data to benchmark parameters for compressed air systems atsimilar facilities.This paper addresses the benefits and limitations ofboth continuous and targeted measurement in benchmarking, optimizing, andsustaining an efficient compressed air system. Included are methods usedin applying both of these measurements to a complex industrial system.Further, this paper will describe the results of these additionalanalyses and the plant response to them.

Taranto, Thomas; McKane, Aimee; Amon, Ricardo; Maulhardt, Michael

2007-07-02T23:59:59.000Z

443

Small mill for the high-temperature rotary rolling of semifinished products composed of refractory metals in protective media  

Science Journals Connector (OSTI)

A description is presented of a small vacuum-type rotary rolling mill designed for the high-temperature deformation of semifinished products to obtain bars 7–10 mm in diameter. It is shown that the CAD software Autodesk

S. M. Gorbatyuk; E. Z. Tuktarov; L. A. Rudenskii

2012-01-01T23:59:59.000Z

444

Optimized Analysis of Cold Energy Utilization for Cold Storage Project of Xingtan LNG Satellite Station  

Science Journals Connector (OSTI)

The project of cold energy utilization for cold storage of Xingtan LNG satellite station is the first cold energy utilization demonstration project of LNG satellite station in China with (2–4...4 m3/day gasificat...

Wendong Xu; Zhonghao Huang; Shuanshi Fan

2014-01-01T23:59:59.000Z

445

Energy Saving Model for Sensor Network Using Ant Colony Optimization Algorithm  

Science Journals Connector (OSTI)

In this paper, we propose an energy saving model for sensor network by finding the ... results show that the proposed model reduces the energy consumption by reducing the amount of data...

Doreswamy; S. Narasegouda

2014-01-01T23:59:59.000Z

446

Multi Agent System to Optimize Comfort and Energy Flows in the Built Environment  

E-Print Network (OSTI)

This paper discusses the control of building energy comfort management systems led by the economic movement within the energy market resulting in different prices. This new generation of building management systems focuses on the application...

Pennings, L. W.; Houten, M. A.; Boxem, G.; Zeiler, W.

2010-01-01T23:59:59.000Z

447

Research Project: “Guidelines for Optimal Planning and Construction of Solar Energy Systems”  

Science Journals Connector (OSTI)

Within the framework of the IEA, the Swiss Professional Association of Solar-Energy Firms (SOFAS) will design and install various solar energy systems for domestic hot-waterpreparation and space heating. After...

B. Schläpfer

1984-01-01T23:59:59.000Z

448

Optimal Energy Cost for Strongly Stable Multi-hop Green Cellular Networks  

Science Journals Connector (OSTI)

With the ever increasing user adoption of mobile devices like smart phones and tablets, the cellular service providers' energy consumption and cost are fast-growing and have received tremendous attention. How to effectively reduce the energy cost of ...

Weixian Liao, Ming Li, Sergio Salinas, Pan Li, Miao Pan

2014-06-01T23:59:59.000Z

449

Steam System Efficiency Optimized After J.R. Simplot Fertilizer Plant Receives Energy Assessment  

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

This case study describes how a DOE energy assessment helped the J.R. Simplot Company identify ways to reduce energy use in its Pocatello, Idaho, plant's steam system.

450

Towards an energy-aware Internet: modeling a cross-layer optimization approach  

Science Journals Connector (OSTI)

The containment of power consumption and the use of alternative green sources of energy are the new main goals of telecommunication operators, to cope with the rising energy costs, the increasingly rigid environm...

Sergio Ricciardi; Davide Careglio; Germán Santos-Boada…

2013-02-01T23:59:59.000Z

451

A study to optimize the potential impact of residential building energy audits  

Science Journals Connector (OSTI)

The Colorado College Energy Audit and Retrofit Program is a non-profit ... teaches students the science and mechanics involved in energy audits and retrofit work through service–learning and ... community. The me...

Amanda L. Wierzba; Mark A. Morgenstern; Sally A. Meyer…

2011-11-01T23:59:59.000Z

452

In-plant demonstration of energy optimization in beck dyeing of carpet. Final report, June 1, 1979-January 1, 1980  

SciTech Connect

Several energy-conservative technologies have been successfully combined and transferred to a commercial carpet finishing plant to optimize beck dyeing. The technology of bump-and-run, in which the dyebath temperature was allowed to drift for the last 85% of the hold time instead of being maintained by active steam sparging, reduced the energy consumption by 38% with negligible capital investment required. Merging of dyebath reuse with bump-and-run only marginally increased the energy consumption (to 39%), but substantially lowered the plant's finishing costs further by directly recycling dyes, auxiliary chemicals, and water. Final optimization, which merged a technique whereby the carpet was pulled directly from the hot bath with bump-and-run and dyebath reuse, further improved the economics by drastically reducing water/sewer requirements by 90% and eliminating the holding tank/pumping assembly as a reuse requirement. From a carpet industry viewpoint, the demonstrated modifications have a direct energy conservation potential of 2.4 x 10/sup 5/ barrels of oil equivalent per year assuming the technology is directly transferable to similar atmospheric dyeing processes, e.g., beck dyeing of nylon and polyester fabrics, the potential to the entire textile industry is 2.6 x 10/sup 6/ BOE/year. Economically, total potential savings for the carpet industry on reuse incorporation was $1.2 x 10/sup 7//year, based on a 2.3 cents/lb. savings figure. When the allied fabric industry was included, the national potential was raised to $1.0 x 10/sup 8//year. These figures include cost savings due to materials recycled (water, auxiliary chemicals and dyes) as well as energy conservation.

Tincher, W.C.

1980-01-01T23:59:59.000Z

453

Optimal Deployment of Thermal Energy Storage under Diverse Economic and Climate Conditions  

E-Print Network (OSTI)

energy storage with phase change materials and applications.ice and other phase change material [18]) where the medium

DeForest, Nicolas

2014-01-01T23:59:59.000Z

454

Optimizing Distributed Energy Resources and Building Retrofits with the Strategic DER-CAModel  

E-Print Network (OSTI)

Optimised Scheduling of a Solar-Assisted HVAC System withand solar- To be published in APPLIED ENERGY assisted HVAC,”

Stadler, Michael

2014-01-01T23:59:59.000Z

455

Visualization and analysis of multiobjective solutions to the energy and transportation investment optimization problem  

E-Print Network (OSTI)

ABSTRACT Most U.S. energy usage is for electricity production and vehicle transportation, two, accelerated by public con- cern over global warming. The U.S. Energy Information Administration suggests and transportation accounted for almost 60% of US greenhouse emissions. Intentional and strategic energy system

456

Optimal Distributed Coding Schemes for Energy Efficiency in the Fading Relay Channel  

E-Print Network (OSTI)

power allocations that mini- mize either the total network energy consumption or the relay consumption consider both network energy consumption and consumption of the relay alone, as- suming only local channel ­ energy consumption; fading relay channel; distributed power allocation I. INTRODUCTION Relayed

Vu, Mai

457

Energy optimization in ice hockey halls I. The system COP as a multivariable function, brine and design choices  

E-Print Network (OSTI)

This work is the first of a series of articles addressing the energy optimization in ice hockey halls. Here we outline an analytic method to predict in which design and operating conditions the COP of the entire cooling system (refrigerator and cooling tower) ${\\rm COP}_{sys}$ is maximum. ${\\rm COP}_{sys}$ is investigated as a function of several variables, like electric consumption and brine physical properties. With this method, the best configuration and brine choices for the system can therefore be determined in advance. We estimate the optimal design of an average-sized ice rink, including pipe diameter, depth and brine type (ethylene glycol and ammonia). We also single out an optimal brine density and show the impact of the electric consumption of the pump on ${\\rm COP}_{sys}$. Our theoretical predictions are validated with heat flow measurement data obtained at an ice hockey hall in Finland. They are also confronted with technical and cost-related constraints, and implemented by simulations with the pr...

Ferrantelli, Andrea; Räikkönen, Miska; Viljanen, Martti

2012-01-01T23:59:59.000Z

458

Integration of biomass into urban energy systems for heat and power. Part I: An MILP based spatial optimization methodology  

Science Journals Connector (OSTI)

Abstract The paper presents a mixed integer linear programming (MILP) approach to optimize multi-biomass and natural gas supply chain strategic design for heat and power generation in urban areas. The focus is on spatial and temporal allocation of biomass supply, storage, processing, transport and energy conversion (heat and CHP) to match the heat demand of residential end users. The main aim lies on the representation of the relationships between the biomass processing and biofuel energy conversion steps, and on the trade-offs between centralized district heating plants and local heat generation systems. After a description of state of the art and research trends in urban energy systems and bioenergy modelling, an application of the methodology to a generic case study is proposed. With the assumed techno-economic parameters, biomass based thermal energy generation results competitive with natural gas, while district heating network results the main option for urban areas with high thermal energy demand density. Potential further applications of this model are also described, together with main barriers for development of bioenergy routes for urban areas.

Antonio M. Pantaleo; Sara Giarola; Ausilio Bauen; Nilay Shah

2014-01-01T23:59:59.000Z

459

Demand-based Optimal Control to Save Energy: A Case-Study in a Medical Center  

E-Print Network (OSTI)

be a demand, but those may not be readily available through a control system. The position of dampers and valves, room temperature, static pressure, or fan and pump speed are good indicators of demand for they can be read through the control..., December 15-17, 2008 Discharge Air Temperature Reset The control sequences optimization of supply air temperature reset in the SDVAV is similar to the cold deck temperature reset described in the DDCV above. Static Pressure Reset For the exiting...

Joo, I. S.; Song, L.; Liu, M.; Carico, M.

460

Comprehensive Energy Assessment: EE and RE Project Optimization Modeling for United States Pacific Command (USPACOM) American Recovery and Reinvestment Act (ARRA) FEMP Technical Assistance  

SciTech Connect

This report summarizes a study and corresponding model development conducted in support of the United States Pacific Command (USPACOM) as part of the Federal Energy Management Program (FEMP) American Reinvestment and Recovery Act (ARRA). This research was aimed at developing a mathematical programming framework and accompanying optimization methodology in order to simultaneously evaluate energy efficiency (EE) and renewable energy (RE) opportunities. Once developed, this research then demonstrated this methodology at a USPACOM installation - Camp H.M. Smith, Hawaii. We believe this is the first time such an integrated, joint EE and RE optimization methodology has been constructed and demonstrated.

Brigantic, Robert T.; Papatyi, Anthony F.; Perkins, Casey J.

2010-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "optimized rotary energy" 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

Understanding the Dynamics Behind the Photoisomerization of a Light-Driven Fluorene Molecular Rotary Motor  

Science Journals Connector (OSTI)

In the present contribution we report a combined quantum chemical and molecular dynamics study of the mechanism of the rotational cycle of the fluorene-based molecular rotary motor 9-(2,4,7-trimethyl-2,3-dihydro-1H-inden-1-ylidene)-9H-fluorene (1). ... (41) The theoretical results obtained hold considerable implications in achieving a rational synthetic design of future molecular motors with application defined functionality. ...

Andranik Kazaryan; Jos C. M. Kistemaker; Lars V. Scha?fer; Wesley R. Browne; Ben L. Feringa; Michael Filatov

2010-03-29T23:59:59.000Z

462

A thermodynamic analysis of the rotary-vee internal combustion engine  

E-Print Network (OSTI)

OF FIGURES FIGURE 1. IC Engine Family Tree FIGURE 2. Three Possibilities of Single Rotation Machines (SIM) . . . . . Page FIGURE 3 Planetary Rotor Motion and Path of the Apex Seal for the Wankel Engine 10 FIGURE 4. Cut-Away View of the Rand Cam Engine... for the Rotary-Vee Engine 24 FIGURE 9. Overall View of Piston And Cylinder Block Configuration, . . . FIGURE 10. Overall View Showing the Central Cavity . . . . . . . . . . . . . . . . . . . . . . . . . . . FIGURE 11. Sectioned View of the Pistons...

Bailey, Stephen Glenn

2012-06-07T23:59:59.000Z

463

Optimal green energy management in Jeju, South Korea – On-grid and off-grid electrification  

Science Journals Connector (OSTI)

Abstract “Green Growth” and “Sustainability” are now keywords for industrial growth engines. This research examines the economic, environmental, and technological feasibility of hybrid systems by simulating a system composed of renewable energy, an existing grid system, and a diesel generator on Jeju Island in South Korea. Korea depends heavily on oil imports. Thus, in Korea, efficient energy management is imperative. For this reason, the current Korean administration is striving to improve its energy infrastructure with the construction of stable energy supplies and reliable systems the implementation of energy policies, such as smart grids, and the diffusion of renewable energy generation sources. This study finds that the most economically feasible hybrid system is a grid-connected wind turbine–photovoltaic–battery–converter hybrid system. Given the economic feasibility of this hybrid system, implementing it would decrease the price of electricity in Jeju. Both the implications and limitations of this study will be discussed in the last section of this paper.

Heetae Kim; Seoin Baek; Eunil Park; Hyun Joon Chang

2014-01-01T23:59:59.000Z

464

Energy Saving Through Traffic Profiling and Prediction in Self-Optimizing Optical Networks  

Science Journals Connector (OSTI)

A method that automatically learns and predicts the traffic behavior to save energy by adjusting the number of active optical carriers is presented. Simulations prove it provides large...

Siracusa, Domenico; Pederzolli, Federico; Lo Cigno, Renato; Salvadori, Elio

465

Optimizing Pneumatics: The design and introduction of a new energy saving system:.  

E-Print Network (OSTI)

??This report explains the creative journey made by a strategic product designer developing a new energy saving system and its market introduction. In short, the… (more)

Schrandt, W.H.

2010-01-01T23:59:59.000Z

466

NiSource Energy Technologies: Optimizing Combined Heat and Power Systems  

SciTech Connect

Summarizes NiSource Energy Technologies' work under contract to DOE's Distribution and Interconnection R&D. Includes studying distributed generation interconnection issues and CHP system performance.

Not Available

2003-01-01T23:59:59.000Z

467

Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios  

E-Print Network (OSTI)

some increase in solar energy production. The results forenergy production from renewable resources focusing on geothermal, solar, andenergy production from renew- able resources focusing on geothermal, solar, and

Meininger, Aaron G.

2012-01-01T23:59:59.000Z

468

Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios  

E-Print Network (OSTI)

153 for hydro and geothermal power to .042 for petroleum.energy. For wind, geothermal, and solar power, the resultscost variations in geothermal and wind power. In evaluating

Meininger, Aaron G.

2012-01-01T23:59:59.000Z

469

Optimal water quality management in surface water systems and energy recovery in water distribution networks.  

E-Print Network (OSTI)

??Two of the most important environmental challenges in the 21st century are to protect the quality of fresh water resources and to utilize renewable energy… (more)

Telci, Ilker Tonguc

2012-01-01T23:59:59.000Z

470

Optimal Technology Investment and Operation in Zero-Net-Energy Buildings with Demand Response  

E-Print Network (OSTI)

of Carbon Tax on Combined Heat and Power Adoption by ain energy-efficient combined heat and power equipment, whilegeneration with combined heat and power (CHP) applications

Stadler, Michael

2009-01-01T23:59:59.000Z

471

A Constrained Optimization Algorithm for Total Energy Minimization in Electronic Structure Calculation  

E-Print Network (OSTI)

Functionals for Electronic Structure Calculations. J. Comp.Minimization in Electronic Structure Calculation ? ChaoKey words: electronic structure calculation, total energy

Yang, Chao; Meza, Juan C.; Wang, Lin-Wang

2005-01-01T23:59:59.000Z

472

SmartTecO: Context-Based Ambient Sensing and Monitoring for Optimizing Energy Consumption  

E-Print Network (OSTI)

, Germany firstname.lastname@kit.edu Naoya Namatame Keio University Tokyo, Japan namachan- tems currently implemented in households and offices. Domestic energy use is commonly invisible

Beigl, Michael

473

Designing an Optimal Urban Community Mix for an Aquifer Thermal Energy Storage System.  

E-Print Network (OSTI)

??This research examined what mix of building types result in the most efficient use of a technology known as Aquifer Thermal Energy Storage (ATES). Hourly… (more)

Zizzo, Ryan

2010-01-01T23:59:59.000Z

474

Manipulator having thermally conductive rotary joint for transferring heat from a test specimen  

DOE Patents (OSTI)

A manipulator for rotatably moving a test specimen in an ultra-high vacuum chamber includes a translational unit movable in three mutually perpendicular directions. A manipulator frame is rigidly secured to the translational unit for rotatably supporting a rotary shaft. A first copper disc is rigidly secured to an end of the rotary shaft for rotary movement within the vacuum chamber. A second copper disc is supported upon the first disc. The second disc receives a cryogenic cold head and does not rotate with the first disc. A sapphire plate is interposed between the first and second discs to prevent galling of the copper material while maintaining high thermal conductivity between the first and second discs. A spring is disposed on the shaft to urge the second disc toward the first disc and compressingly engage the interposed sapphire plate. A specimen mount is secured to the first disc for rotation within the vacuum chamber. The specimen maintains high thermal conductivity with the second disc receiving the cryogenic transfer line.

Haney, Steven J. (Tracy, CA); Stulen, Richard H. (Livermore, CA); Toly, Norman F. (Livermore, CA)

1985-01-01T23:59:59.000Z

475

Pitch deviation measurement of an involute spur gear by a rotary profiling system  

Science Journals Connector (OSTI)

Abstract This paper presents surface-profiling based gear pitch deviation measurement for an involute spur gear. A rotary profiling system, which consists of an air-bearing spindle and a displacement sensor with a diamond stylus, is employed to measure gear pitch deviation. In measurement of gear pitch deviation, an eccentric error between a gear axis and a motion axis of the rotary stage in the profiling system would affect accuracy of gear profile measurement. In this paper, at first, the influence of the eccentric error on measurement of gear pitch deviation is estimated in computer simulation based on a geometric model of the profiling system. After that, a new scanning method named “opposite-direction dual scanning method” is proposed so that a steep profile of gear flank surface with a local slope of up to 90° can be measured by the developed rotary profiling system. For compensating distortions in the measured gear tooth profile, which are induced not only by the eccentric error but also by a probe offset introduced by the proposed scanning method, a self-calibration and compensation method is applied. To verify the feasibility of the proposed method, measurement of gear pitch deviation of a master involute spur gear with a certificate data is carried out. Measurement uncertainty of the proposed method is also analyzed.

Bin Xu; Yuki Shimizu; So Ito; Wei Gao

2014-01-01T23:59:59.000Z

476

Comparative analysis of core drilling and rotary drilling in volcanic terrane  

SciTech Connect

Initially, the goal of this report is to compare and contrast penetration rates of rotary-mud drilling and core drilling in young volcanic terranes. It is widely recognized that areas containing an abundance of recent volcanic rocks are excellent targets for geothermal resources. Exploration programs depend heavily upon reliable subsurface information, because surface geophysical methods may be ineffective, inconclusive, or both. Past exploration drilling programs have mainly relied upon rotary-mud rigs for virtually all drilling activity. Core-drilling became popular several years ago, because it could deal effectively with two major problems encountered in young volcanic terranes: very hard, abrasive rock and extreme difficulty in controlling loss of circulation. In addition to overcoming these difficulties, core-drilling produced subsurface samples (core) that defined lithostratigraphy, structure and fractures far better than drill-chips. It seemed that the only negative aspect of core drilling was cost. The cost-per-foot may be two to three times higher than an ''initial quote'' for rotary drilling. In addition, penetration rates for comparable rock-types are often much lower for coring operations. This report also seeks to identify the extent of wireline core drilling (core-drilling using wireline retrieval) as a geothermal exploration tool. 25 refs., 21 figs., 13 tabs.

Flynn, T.; Trexler, D.T.; Wallace, R.H. Jr. (ed.)

1987-04-01T23:59:59.000Z

477

U. S. S. R. turbodrilling ROP exceeds U. S. rotary rate  

SciTech Connect

It is common practice in the U.S.S.R. to evaluate drilling estimates by a mere comparison of the footage drilled on a per-rig, per-month basis because the figure integrates the techniques, technology, and management used. According to this approach, the rate of penetration (ROP) in the U.S.S.R. is 2.3-2.8 times less than that in the U.S. Based on the statistics published in the Neftanaya Promyishlennost annual, in 1988 the average rotary drilling rate in the U.S. was 4,404 m (14,440 ft)/rig/month (this figure in the U.S. annual footage drilled by all rotary rigs divided by the annual average rig count and converted from yearly to monthly figures), and in the U.S.S.R. it was 1,595 m (5,233 ft)/rig/month. This type of comparison is misleading because the drilling areas in the two countries differ greatly in geographic, geologic, and climatic characteristics. The same holds true for comparisons of average well depths. The preceeding characteristics influence drilling estimates differently. The most difficult task is to evaluate these factors as an average in each country. Our approach to the comparison takes into account only the average footage drilled for each country. In the U.S.S.R. more than 85% of the wells are drilled with turbodrills, and in the U.S. most wells (approximately 80%) are rotary drilled.

Pogarskiy, A.A.; Yasashin, A.M. (All Union Scientific and Research Inst. for Organization, Management, and Economics of Oil and Gas Industry, Moscow (SU))

1991-06-03T23:59:59.000Z

478

Manipulator having thermally conductive rotary joint for transferring heat from a test specimen  

DOE Patents (OSTI)

A manipulator for rotatably moving a test specimen in an ultra-high vacuum chamber includes a translational unit movable in three mutually perpendicular directions. A manipulator frame is rigidly secured to the translational unit for rotatably supporting a rotary shaft. A first copper disc is rigidly secured to an end of the rotary shaft for rotary movement within the vacuum chamber. A second copper disc is supported upon the first disc. The second disc receives a cryogenic cold head and does not rotate with the first disc. The second disc receives a cryogenic cold head and does not rotate with the first disc. A sapphire plate is interposed between the first and second discs to prevent galling of the copper material while maintaining high thermal conductivity between the first and second discs. A spring is disposed on the shaft to urge the second disc toward the first disc and compressingly engage the interposed sapphire plate. A specimen mount is secured to the first disc for rotation within the vacuum chamber. The specimen maintains high thermal conductivity with the second disc receiving the cryogenic transfer line.

Haney, S.J.; Stulen, R.H.; Toly, N.F.

1983-05-03T23:59:59.000Z

479

Control of Greenhouse Gas Emissions by Optimal DER Technology Investment and Energy Management in Zero-Net-Energy Buildings  

E-Print Network (OSTI)

of Carbon Tax on Combined Heat and Power Adoption by ain energy-efficient combined heat and power (CHP) equipment,generation with combined heat and power (CHP) applications

Stadler, Michael

2010-01-01T23:59:59.000Z

480

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

Note: This page contains sample records for the topic "optimized rotary energy" 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

Monitoring and Optimization of Building Operations of a Low-Energy School Building  

E-Print Network (OSTI)

The ambitious design and energy concept of the new Gebhard-Müller-Schule (GMS) school building in Biberach/Riss, Germany proved itself during the first three school years of operation. The intended target value of 30 kWh/(m2a) overall heating energy...

Koenigsdorff, R.; Heinrich, S.; Baumann, O.; Reiser, C.

482

Building America Top Innovations Hall of Fame Profile – Building Energy Optimization Analysis Method (BEopt)  

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

This Building America Innovations profile describes the DOE-sponsored BEopt software, which ensures a consistent analysis platform and accurate simulations. Many BEopt algorithms have been adopted by private-sector HERS software tools that have helped improve the energy efficiency of tens-of-thousands of ENERGY STAR-certified homes.

483

EoD designer: a computation tool for energy optimization of data centers  

Science Journals Connector (OSTI)

Total energy consumption in a data center is the sum of various components. We consider six main subsystems: Voltage transformer, uninterruptable power supply, IT equipment, computer room air handler, chiller and cooling tower. In this project a mathematical ... Keywords: data center, energy efficiency, greening by software, power modeling

Cyrill Grüter, Peter Gysel, Matthias Krebs, Christoph Meier

2012-06-01T23:59:59.000Z

484

Steam System Efficiency Optimized After J.R. Simplot Fertilizer Plant Receives Energy Assessment  

SciTech Connect

This case study describes how the J.R. Simplot company's Don Plant in Pocatello, Idaho, achieved annual savings of $335,000 and 75,000 MMBtu, with a simple payback of 6.5 months, after receiving a DOE Save Energy Now energy assessment.

Not Available

2008-07-01T23:59:59.000Z

485

Cyber-Physical Systems for Optimal Energy Management Scheme of Autonomous Electric Vehicle  

Science Journals Connector (OSTI)

......cyber-physical systems; autonomous electric vehicle; energy management...applications [e.g., autonomous electric vehicle (AEV) with wireless...systems, such as aircrafts and automobiles, to large-scale systems...infrastructure that supplies electric energy for the recharging......

Jiafu Wan; Hehua Yan; Di Li; Keliang Zhou; Lu Zeng

2013-08-01T23:59:59.000Z

486

Distributed Energy Resource Optimization Using a Software as Service (SaaS) Approach at the University of California, Davis Campus  

SciTech Connect

Together with OSIsoft LLC as its private sector partner and matching sponsor, the Lawrence Berkeley National Laboratory (Berkeley Lab) won an FY09 Technology Commercialization Fund (TCF) grant from the U.S. Department of Energy. The goal of the project is to commercialize Berkeley Lab's optimizing program, the Distributed Energy Resources Customer Adoption Model (DER-CAM) using a software as a service (SaaS) model with OSIsoft as its first non-scientific user. OSIsoft could in turn provide optimization capability to its software clients. In this way, energy efficiency and/or carbon minimizing strategies could be made readily available to commercial and industrial facilities. Specialized versions of DER-CAM dedicated to solving OSIsoft's customer problems have been set up on a server at Berkeley Lab. The objective of DER-CAM is to minimize the cost of technology adoption and operation or carbon emissions, or combinations thereof. DER-CAM determines which technologies should be installed and operated based on specific site load, price information, and performance data for available equipment options. An established user of OSIsoft's PI software suite, the University of California, Davis (UCD), was selected as a demonstration site for this project. UCD's participation in the project is driven by its motivation to reduce its carbon emissions. The campus currently buys electricity economically through the Western Area Power Administration (WAPA). The campus does not therefore face compelling cost incentives to improve the efficiency of its operations, but is nonetheless motivated to lower the carbon footprint of its buildings. Berkeley Lab attempted to demonstrate a scenario wherein UCD is forced to purchase electricity on a standard time-of-use tariff from Pacific Gas and Electric (PG&E), which is a concern to Facilities staff. Additionally, DER-CAM has been set up to consider the variability of carbon emissions throughout the day and seasons. Two distinct analyses of value to UCD are possible using this approach. First, optimal investment choices for buildings under the two alternative objectives can be derived. Second, a week-ahead building operations forecaster has been written that executes DER-CAM to find an optimal operating schedule for buildings given their expected building energy services requirements, electricity prices, and local weather. As part of its matching contribution, OSIsoft provided a full implementation of PI and a server to install it on at Berkeley Lab. Using the PItoPI protocol, this gives Berkeley Lab researchers direct access to UCD's PI data base. However, this arrangement is in itself inadequate for performing optimizations. Additional data not included in UCD's PI database would be needed and the campus was not able to provide this information. This report details the process, results, and lessons learned of this commercialization project.

Michael, Stadler; Marnay, Chris; Donadee, Jon; Lai, Judy; M& #233; gel, Olivier; Bhattacharya, Prajesh; Siddiqui, Afzal

2011-02-06T23:59:59.000Z

487

Optimal reconstruction of the folding landscape using differential energy surface analysis  

Science Journals Connector (OSTI)

In experiments and in simulations, the free energy of a state of a system can be determined from the probability that the state is occupied. However, it is often necessary to impose a biasing potential on the system so that high energy states are sampled with sufficient frequency. The unbiased energy is typically obtained from the data using the weighted histogram analysis method (WHAM). Here we present differential energy surface analysis (DESA), in which the gradient of the energy surface, dE/dx, is extracted from data taken with a series of harmonic biasing potentials. It is shown that DESA produces a maximum likelihood estimate of the folding landscape gradient. DESA is demonstrated by analyzing data from a simulated system as well as data from a single-molecule unfolding experiment in which the end-to-end distance of a DNA hairpin is measured. It is shown that the energy surface obtained from DESA is indistinguishable from the energy surface obtained when WHAM is applied to the same data. Two criteria are defined which indicate whether the DESA results are self-consistent. It is found that these criteria can detect a situation where the energy is not a single-valued function of the measured reaction coordinate. The criteria were found to be satisfied for the experimental data analyzed, confirming that end-to-end distance is a good reaction coordinate for the experimental system. The combination of DESA and the optical trap assay in which a structure is disrupted under harmonic constraint facilitates an extremely accurate measurement of the folding energy surface.

Arthur La Porta; Natalia A. Denesyuk; Michel de Messieres

2013-03-20T23:59:59.000Z

488

Energy enhancement of proton acceleration in combinational radiation pressure and bubble by optimizing plasma density  

SciTech Connect

The combinational laser radiation pressure and plasma bubble fields to accelerate protons are researched through theoretical analysis and numerical simulations. The dephasing length of the accelerated protons bunch in the front of the bubble and the density gradient effect of background plasma on the accelerating phase are analyzed in detail theoretically. The radiation damping effect on the accelerated protons energy is also considered. And it is demonstrated by two-dimensional particle-in-cell simulations that the protons bunch energy can be increased by using the background plasma with negative density gradient. However, radiation damping makes the maximal energy of the accelerated protons a little reduction.

Bake, Muhammad Ali; Xie Baisong [Key Laboratory of Beam Technology and Materials Modification of the Ministry of Education, Beijing Normal University, Beijing 100875 (China); College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875 (China); Shan Zhang [Department of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang 050043 (China); Hong Xueren [College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875 (China); College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China); Wang Hongyu [Department of Physics, Anshan Normal University, Anshan 114005 (China); Shanghai Bright-Tech Information Technology Co. Ltd, Shanghai 200136 (China)

2012-08-15T23:59:59.000Z

489

Dynamic modeling and optimal control of DFIG wind energy systems using DFT and NSGA-II  

Science Journals Connector (OSTI)

Abstract Once a doubly-fed induction generator (DFIG) is subjected to a disturbance by a change in the wind speed, the stator flux cannot change instantly. Under this condition, rotor back-EMF voltages reflect the effects of stator dynamics on rotor current dynamics, and have an important role on the oscillations of the rotor current. These oscillations decrease the DFIG system reliability and gear lifetime. Moreover, by focusing only on small signal analysis, the dynamic damping performance immediately following such disturbances is often degraded. Additional improvement in performance will be achieved if discrete Fourier transform (DFT) is used to quantify damping characteristic of the rotor current during changes of the operating points. This paper introduces an optimization technique based on non-dominated sorting genetic algorithm-II (NSGA-II) incorporating DFT analysis to achieve better control performance for DFIG system stability. Considering small signal stability, the main purpose of the control system in the present paper is to increase the system damping ratio as well as to guarantee enough stability margin. Eigenvalue analysis and time-domain simulations have been presented to demonstrate that the proposed optimizing method yields better control performance in comparison with one designed using mere eigenvalue relocation.

M. Zamanifar; B. Fani; M.E.H. Golshan; H.R. Karshenas

2014-01-01T23:59:59.000Z

490

Conceptual Design of Optimized Fossil Energy Systems with Capture and Sequestration of Carbon Dioxide  

E-Print Network (OSTI)

of Fossil Hydrogen Energy Systems with Carbon Capture andThe Implications Of New Carbon Capture And SequestrationW H SAMMIS WILLOW ISLAND TOTAL Carbon capture In the plant

Ogden, Joan

2004-01-01T23:59:59.000Z

491

A reverse osmosis treatment process for produced water: optimization, process control, and renewable energy application  

E-Print Network (OSTI)

resources (wind and solar) are analyzed as potential power sources for the process, and an overview of reverse osmosis membrane fouling is presented. A computer model of the process was created using a dynamic simulator, Aspen Dynamics, to determine energy...

Mareth, Brett

2009-06-02T23:59:59.000Z

492

Computer-Aided Design and Optimization of Hybrid Energy Storage Systems  

Science Journals Connector (OSTI)

Electricity is the key to the proper functioning of modern human society. Ever-increasing electricity consumption gives rise to recent regulations and significant endeavors to improve the energy efficiency in all kinds of human activity from manufacturing ...

Younghyun Kim, Yanzhi Wang, Naehyuck Chang, Massoud Pedram

2013-09-01T23:59:59.000Z

493

Optimization of Polymer-based Nanocomposites for High Energy Density Applications  

E-Print Network (OSTI)

polymers are of interest owing to their high inherent electrical resistance, low dielectric loss, flexibility, light weight, and low cost; however, capacitors produced with dielectric polymers are limited to an energy density of ~1-2 J/cc. Polymer...

Barhoumi Ep Meddeb, Amira

2012-07-16T23:59:59.000Z

494

Conceptual Design of Optimized Fossil Energy Systems with Capture and Sequestration of Carbon Dioxide  

E-Print Network (OSTI)

aquifers and coal beds. Incorporate GIS layers for regionala GIS database for the state of Ohio, an area where coal-GIS) format to show the location of H 2 demand, fossil energy complexes, coal

Ogden, Joan M

2004-01-01T23:59:59.000Z

495

Optimizing the Configuration and Control of a Novel Human-Powered Energy Harvesting System  

E-Print Network (OSTI)

human foot-strikes and power low-power wearable systems in a self-sustaining manner. Dielectric the energy produced by a user's foot strikes and drive a target wearable system in a self-sustaining manner

Potkonjak, Miodrag

496

Cyber-Physical Systems for Optimal Energy Management Scheme of Autonomous Electric Vehicle  

Science Journals Connector (OSTI)

......autonomous electric vehicle (AEV) in smart grid. We first give a brief overview...communication technologies for CPS, smart grid, AEV and its path planning, energy-efficient...sensor networks (WSNs) navigation, smart grid communication architecture for EMF......

Jiafu Wan; Hehua Yan; Di Li; Keliang Zhou; Lu Zeng

2013-08-01T23:59:59.000Z

497

3232 IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 62, NO. 12, JUNE 15, 2014 Optimal Energy Allocation for Energy Harvesting  

E-Print Network (OSTI)

the energy storage efficiency is to augment a super-ca- pacitor (SC) to the existing battery and obtain-capacitor (SC) and an inefficient battery. The SC has finite storage space while the battery has unlimited space capacities. On the other hand, batteries have large storage capacities while they suffer from inefficient

Ulukus, Sennur

498

Coupling High-Energy Radiography And Photon Activation Analysis (PAA) To Optimize The Characterization Of Nuclear Waste Packages  

SciTech Connect

Radiological characterization of nuclear waste packages is an industrial issue in order to select the best mode of storage. The alpha-activity, mainly due to the presence of actinides ({sup 235}U, {sup 238}U, {sup 239}Pu,...) inside the package, is one of the most important parameter to assess during the characterization. Photon Activation Analysis (PAA) is a non-destructive active method (NDA method) based on the photofission process and on the detection of delayed particles (neutrons and gammas). This technique is well-adapted to the characterization of large concrete waste packages. However, PAA methods often require a simulation step which is necessary to analyze experimental results and to quantify the global mass of actinides. The weak point of this approach is that characteristics of the package are often not well-known, these latter having a huge impact on the final simulation result. High-energy radiography, based on the use of a linear electron accelerator (LINAC), allows to visualize the content of the package and is also a performing way to tune simulation models and to optimize the characterization process by PAA. In this article, we present high-energy radiography results obtained for two different large concrete waste packages in the SAPHIR facility (Active Photon and Irradiation System). This facility is dedicated to PAA study and development and setup for a decade in CEA Saclay. We also discuss possibilities offered by the coupling between high-energy radiography and PAA techniques.

Carrel, F.; Agelou, M.; Gmar, M.; Laine, F.; Lamotte, T.; Lazaro, D.; Poumarede, B.; Rattoni, B. [CEA, LIST, F-91191, Gif-sur-Yvette (France)

2009-12-02T23:59:59.000Z

499

E-Print Network 3.0 - algorithm based optimization Sample Search...  

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

OPTIMIZATION Algorithms, software and applications Nick Sahinidis National Energy... differential equations Optimal control problems Simulation-based optimization...

500

Demand-side management and European environmental and energy goals: An optimal complementary approach  

Science Journals Connector (OSTI)

Abstract Demand side management (DSM) in electricity markets could improve energy efficiency and achieve environmental targets through controlled consumption. For the past 10 years or so DSM programmes have registered significant results. However, detailed analysis of its real impact as observed by a large number of pilot studies suggests that such programmes need to be fine-tuned to suit clearly identified conditions. This study aims to provide recommendations for the instruments to be used to prompt demand response with a view to maximizing energy and environmental efficiencies of various countries. The present study suggests that different DSM models should be deployed depending on the specific generation mix in any given country. Beside the natural benefits from cross-borders infrastructures, DSM improves the flexibility and reliability of the energy system, absorbing some shock on generation mix. We show efficiency increases with demand response but at a decreasing rate. So, according to rebound and report effects, simple DSM tools could be preferred.

Claire Bergaentzlé; Cédric Clastres; Haikel Khalfallah

2014-01-01T23:59:59.000Z