Sample records for jet engine design

  1. Redesigning the design process through interactive simulation: A case study of life-cycle engineering in jet engine conceptual design

    E-Print Network [OSTI]

    Kerley, Warren; Wynn, David C; Eckert, Claudia M; Clarkson, P John

    , concurrent engineering design process and the practical value of process simulation as a tool to support the specification of process changes in the context of engineering design. The paper also illustrates how development of a simulation model can provide... processes in such companies are particularly complex due to their iterative nature (Browning et al., 2006), emphasis on Concurrent Engineering (CE) practices (Ainscough and Yazdani, 2000; Maylor, 1997), and the need to co-ordinate the work of specialist...

  2. A systems design study of a microturbine jet engine for model applications

    E-Print Network [OSTI]

    Jacox, John Oliver

    1974-01-01T23:59:59.000Z

    , microturbojet engine was designed. To enable the use of less expensive construction materials, a relatively cool turbine inlet temperature of 1100 R was selected. Additionally, a four stage axial flow compressor and a single stage axial flow turbine were... Compressor Considerations. Diffuser Considerations. Combustor Considerations . Turbine Considerations Physical and Mechanical Considerations . CONCLUSIONS AND RECOMMENDATIONS Conclusions. Recommendations. REFERENCES. APPENDIX A. V11 1X X1 21 25...

  3. The Remote Photogrammetric Survey and Engineering Analysis of the Divertor Structure during JET’s Remote Tile Exchange

    E-Print Network [OSTI]

    The Remote Photogrammetric Survey and Engineering Analysis of the Divertor Structure during JET’s Remote Tile Exchange

  4. Faculty of Engineering & Design Civil Engineering

    E-Print Network [OSTI]

    Burton, Geoffrey R.

    the requirements of engineers in an aeronautical field. Technical knowledge from university gave me a goodFaculty of Engineering & Design Civil Engineering Chemical Engineering Electronic & Electrical Engineering Integrated Mechanical & Electrical Engineering Mechanical Engineering Industrial Placements #12

  5. JET BREAKUP and SPRAY FORMATION in a DIESEL ENGINE James Glimm

    E-Print Network [OSTI]

    New York at Stoney Brook, State University of

    JET BREAKUP and SPRAY FORMATION in a DIESEL ENGINE James Glimm Department of Applied Mathematics of a fuel eÆcient, nonpollut- ing diesel engine. We report preliminary progress on the numerical simulation of diesel fuel injection spray with the front tracking code FronTier. Our simulation design is set to match

  6. De-commoditizing the commercial jet engine business

    E-Print Network [OSTI]

    Soucy, Arthur L

    2007-01-01T23:59:59.000Z

    This thesis project is a comprehensive application of the Delta Model at a major jet engine manufacturer. It will assess and contrast customer segmentation and customer value proposition via primary research. It will also ...

  7. Flow control optimization in a jet engine serpentine inlet duct

    E-Print Network [OSTI]

    Kumar, Abhinav

    2009-05-15T23:59:59.000Z

    Computational investigations were carried out on an advanced serpentine jet engine inlet duct to understand the development and propagation of secondary flow structures. Computational analysis which went in tandem with experimental investigation...

  8. Jet Simulation in a Diesel Engine James Glimm zx , M.N. Kim x , X.-L. Li z , R. Samulyak x , and Z.-L. Xu yz

    E-Print Network [OSTI]

    New York at Stoney Brook, State University of

    Jet Simulation in a Diesel Engine James Glimm zx , M.N. Kim x , X.-L. Li z , R. Samulyak x , and Z and spray formation in a diesel engine by the Front Tracking method. We model mixed vapor-liquid region of a high speed diesel jet injected through a circular nozzle are the key to design a fuel e

  9. Jet Ignition Research for Clean Efficient Combustion Engines Prasanna Chinnathambi, Abdullah Karimi, Manikanda Rajagopal, Razi Nalim

    E-Print Network [OSTI]

    Zhou, Yaoqi

    Jet Ignition Research for Clean Efficient Combustion Engines Prasanna Chinnathambi, Abdullah Karimi University Indianapolis Abstract Ignition by a jet of hot gas has application in lean-burn pre-chamber internal combustion engines and in innovative pressure-gain combustors for gas turbine engines. Jet

  10. Numerical simulation of turbulent jet primary breakup in Diesel engines

    E-Print Network [OSTI]

    Helluy, Philippe

    Numerical simulation of turbulent jet primary breakup in Diesel engines Peng Zeng1 Marcus Herrmann" IRMA Strasbourg, 23.Jan.2008 #12;Introduction DNS of Primary Breakup in Diesel Injection Phase Transition Modeling Turbulence Modeling Summary Outline 1 Introduction 2 DNS of Primary Breakup in Diesel

  11. Jet plume injection and combustion system for internal combustion engines

    DOE Patents [OSTI]

    Oppenheim, A.K.; Maxson, J.A.; Hensinger, D.M.

    1993-12-21T23:59:59.000Z

    An improved combustion system for an internal combustion engine is disclosed wherein a rich air/fuel mixture is furnished at high pressure to one or more jet plume generator cavities adjacent to a cylinder and then injected through one or more orifices from the cavities into the head space of the cylinder to form one or more turbulent jet plumes in the head space of the cylinder prior to ignition of the rich air/fuel mixture in the cavity of the jet plume generator. The portion of the rich air/fuel mixture remaining in the cavity of the generator is then ignited to provide a secondary jet, comprising incomplete combustion products which are injected into the cylinder to initiate combustion in the already formed turbulent jet plume. Formation of the turbulent jet plume in the head space of the cylinder prior to ignition has been found to yield a higher maximum combustion pressure in the cylinder, as well as shortening the time period to attain such a maximum pressure. 24 figures.

  12. Jet plume injection and combustion system for internal combustion engines

    DOE Patents [OSTI]

    Oppenheim, Antoni K. (Kensington, CA); Maxson, James A. (Berkeley, CA); Hensinger, David M. (Albany, CA)

    1993-01-01T23:59:59.000Z

    An improved combustion system for an internal combustion engine is disclosed wherein a rich air/fuel mixture is furnished at high pressure to one or more jet plume generator cavities adjacent to a cylinder and then injected through one or more orifices from the cavities into the head space of the cylinder to form one or more turbulent jet plumes in the head space of the cylinder prior to ignition of the rich air/fuel mixture in the cavity of the jet plume generator. The portion of the rich air/fuel mixture remaining in the cavity of the generator is then ignited to provide a secondary jet, comprising incomplete combustion products which are injected into the cylinder to initiate combustion in the already formed turbulent jet plume. Formation of the turbulent jet plume in the head space of the cylinder prior to ignition has been found to yield a higher maximum combustion pressure in the cylinder, as well as shortening the time period to attain such a maximum pressure.

  13. Pulsed jet combustion generator for premixed charge engines

    DOE Patents [OSTI]

    Oppenheim, A. K. (Berkeley, CA); Stewart, H. E. (Alameda, CA); Hom, K. (Hercules, CA)

    1990-01-01T23:59:59.000Z

    A method and device for generating pulsed jets which will form plumes comprising eddie structures, which will entrain a fuel/air mixture from the head space of an internal combustion engine, and mixing this fuel/air mixture with a pre-ignited fuel/air mixture of the plumes thereby causing combustion of the reactants to occur within the interior of the eddie structures.

  14. Faculty of Engineering & Design BEng(Hons) Electrical Power Engineering

    E-Print Network [OSTI]

    Burton, Geoffrey R.

    Faculty of Engineering & Design BEng(Hons) Electrical Power Engineering BEng(Hons) Electrical & Electronic Engineering Faculty of Engineering & Design #12;BEng(Hons) Electrical Power Engineering BEng(Hons) Electrical and Electronic Engineering NCEPU and the University of Bath, UK 2 Introduction This elite 2

  15. SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Design...

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

    SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Design Checklist SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Design Checklist This checklist is intended to...

  16. Mechanical Design Engineer | Princeton Plasma Physics Lab

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

    5 Requisition Number: 1500015 The Mechanical Design Engineer will be expected to develop engineering designs of large, state-of-the-art resistive (and possibly superconducting)...

  17. Diagnostic systems in DEMO: Engineering design issues

    SciTech Connect (OSTI)

    Todd, T. N. [EURATOM/CCFE Fusion Association, Culham Centre for Fusion Energy, Culham Science Centre, Oxfordshire, OX14 3DB (United Kingdom)

    2014-08-21T23:59:59.000Z

    The diagnostic systems of DEMO that are mounted on or near the torus, whether intended for the monitoring and control functions of the engineering aspects or the physics behaviour of the machine, will have to be designed to suit the hostile nuclear environment. This will be necessary not just for their survival and correct functioning but also to satisfy the pertinent regulatory bodies, especially where any of them relate to machine protection or the prevention or mitigation of accidents foreseen in the safety case. This paper aims to indicate the more important of the reactor design considerations that are likely to apply to diagnostics for DEMO, drawn from experience on JET, the provisions in hand for ITER and modelling results for the wall erosion and neutron damage effects in DEMO.

  18. Faculty of Engineering & Design Industrial Placements

    E-Print Network [OSTI]

    Burton, Geoffrey R.

    Faculty of Engineering & Design Industrial Placements A guide for industry #12;Industrial placements The Faculty of Engineering & Design has built close links with engineering companies through research, projects, placements and graduate employees. We know that working with industry ensures our

  19. Heat Transfer in GE Jet Engines | GE Global Research

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cn SunnybankD.jpgHanfordDepartment ofHeat Transfer in GE Jet Engines Click to

  20. 2014 SAME Mid-Atlantic Regional Joint Engineer Training Symposium (JETS)

    Broader source: Energy.gov [DOE]

    The Society of American Military Engineers (SAME) presents its Mid-Atlantic Regional Joint Engineer Training Symposium (JETS) with the topic Navigating the New Normal: Partnerships for the Future.

  1. A Separation Principle for Non-UCO Systems: The Jet Engine Stall and Surge Example

    E-Print Network [OSTI]

    Maggiore, Manfredi

    Maggiore and Kevin M. Passino Abstract The problem of controlling surge and stall in jet engine compressors the problem of controlling two instabilities which occur in jet engine compressors, namely rotating stall. This problem is particularly challenging since the system is not uniformly completely observable and, hence

  2. PROFESSOR GARY HAWLEY Dean of Engineering & Design

    E-Print Network [OSTI]

    Burton, Geoffrey R.

    published over 140 papers on various aspects of diesel engineering, thermal management of heat enginesPROFESSOR GARY HAWLEY Dean of Engineering & Design In attendance G ary Hawley is the Dean of the Faculty of Engineering and Design and the holder of the Medlock Chair of Engineering. Gary joined

  3. High-Efficiency Clean Combustion Engine Designs for Compression...

    Energy Savers [EERE]

    High-Efficiency Clean Combustion Engine Designs for Compression Ignition Engines High-Efficiency Clean Combustion Engine Designs for Compression Ignition Engines Presentation from...

  4. High Efficiency Clean Combustion Engine Designs for Gasoline...

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

    Engine Designs for Gasoline and Diesel Engines High Efficiency Clean Combustion Engine Designs for Gasoline and Diesel Engines 2009 DOE Hydrogen Program and Vehicle Technologies...

  5. CRAD, Engineering Design and Safety Basis - December 22, 2009...

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

    Engineering Design and Safety Basis - December 22, 2009 CRAD, Engineering Design and Safety Basis - December 22, 2009 December 22, 2009 Engineering Design and Safety Basis...

  6. Mechanical engineering Mechanical engineering is about solving problems, designing processes,

    E-Print Network [OSTI]

    Waikato, University of

    the basic engineering sciences of thermal fluid science, separation processes, chemical reactions, unitMechanical engineering Mechanical engineering is about solving problems, designing processes, and making products to improve the quality of human life and shape the economy. Mechanical engineers apply

  7. Site Design Considerations for Search Engine Optimization Site Design

    E-Print Network [OSTI]

    Goldman, Steven A.

    Site Design Considerations for Search Engine Optimization Site Design No frames No Flash intro o with links are OK Image maps are not OK ­ search engine crawlers will not follow the links Implement a site. Proprietary 1 March 2007 #12;Site Design Considerations for Search Engine Optimization There should

  8. Designing a low cost XY stage for abrasive water jet cutting

    E-Print Network [OSTI]

    Abu Ibrahim, Fadi, 1980-

    2004-01-01T23:59:59.000Z

    This thesis guides the reader through the design of an inexpensive XY stage for abrasive water jet cutting machine starting with a set of functional requirements and ending with a product. Abrasive water jet cutting allows ...

  9. Performance and Emission Characteristics of an Aircraft Turbo Diesel Engine using JET-A Fuel

    E-Print Network [OSTI]

    Underwood, Sean Christopher

    2008-05-05T23:59:59.000Z

    Performance and emission data was acquired by testing an aircraft turbo diesel engine with JET-A at the Mal Harned Propulsion Laboratory of the University of Kansas. The performance data was analyzed and compared to the presented data...

  10. ECE 111 and 118 ENGINEERING DESIGN

    E-Print Network [OSTI]

    California at San Diego, University of

    . It is a decision-making process (often iterative), in which the basic sciences and mathematics and engineering, such as economic factors, safety, reliability, aesthetics, ethics, and social impact. (Electrical EngineeringECE 111 and 118 ENGINEERING DESIGN PROJECT DESCRIPTION FORM Specifications for the Design Course

  11. Guidelines for Engineering, Design, and Inspection Costs - DOE...

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

    5, Guidelines for Engineering, Design, and Inspection Costs by John Makepeace Functional areas: Construction and Engineering, Project Management Engineering, design, and inspection...

  12. Title: Improving Jet Engine Turbine Thermal Barrier Coatings via Reactive Element Addition to the Bond Coat Alloy

    E-Print Network [OSTI]

    Carter, Emily A.

    Title: Improving Jet Engine Turbine Thermal Barrier Coatings via Reactive Element Addition engine turbine blades can shield the temperature to which the underlying superalloy is exposed modifications that should inhibit the failure of these jet engine turbine thermal barrier coatings. Research

  13. Designing a Career in Biomedical Engineering

    E-Print Network [OSTI]

    Designing a Career in Biomedical Engineering Robot-assisted surgery. Photo courtesy The Acrobot equipment, robots and therapeutic devices to improve human performance. They are also solving problems

  14. Multicylinder Diesel Engine Design for HCCI Operation

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

    7 DEER Detroit August 12-16 Multicylinder Diesel Engine Design for HCCI operation William de Ojeda Phil Zoldak, Ral Espinoza, Raj Kumar, Chunyi Xia, Dan Cornelius International...

  15. Development of High-Efficiency Clean Combustion Engines Designs...

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

    High-Efficiency Clean Combustion Engines Designs for SI and CI Engines Development of High-Efficiency Clean Combustion Engines Designs for SI and CI Engines 2010 DOE Vehicle...

  16. Simulations of Ultrarelativistic Magnetodynamic Jets from Gamma-ray Burst Engines

    E-Print Network [OSTI]

    Alexander Tchekhovskoy; Jonathan C. McKinney; Ramesh Narayan

    2008-05-08T23:59:59.000Z

    Long-duration gamma-ray bursts (GRBs) require an engine capable of driving a jet of plasma to ultrarelativistic bulk Lorentz factors of up to several hundred and into narrow opening angles of a few degrees. We use global axisymmetric stationary solutions of magnetically-dominated (force-free) ultrarelativistic jets to test whether the popular magnetic-driving paradigm can generate the required Lorentz factors and opening angles. Our global solutions are obtained via time-dependent relativistic ideal magnetodynamical numerical simulations which follow the jet from the central engine to beyond six orders of magnitude in radius. Our model is primarily motivated by the collapsar model, in which a jet is produced by a spinning black hole or neutron star and then propagates through a massive stellar envelope. We find that the size of the presupernova progenitor star and the radial profile of pressure inside the star determine the terminal Lorentz factor and opening angle of the jet. At the radius where the jet breaks out of the star, our well-motivated fiducial model generates a Lorentz factor $\\gamma\\sim 400$ and a half-opening angle $\\theta_j\\sim 2^\\circ$, consistent with observations of many long-duration GRBs. Other models with slightly different parameters give $\\gamma$ in the range 100 to 5000 and $\\theta_j$ from $0.1^\\circ$ to $10^\\circ$, thus reproducing the range of properties inferred for GRB jets. A potentially observable feature of some of our solutions is that the maximum Poynting flux in the jet is found at $\\theta \\sim \\theta_j$ with the jet power concentrated in a hollow cone, while the maximum in the Lorentz factor occurs at an angle $\\theta$ substantially smaller than $\\theta_j$ also in a hollow cone. [abridged

  17. High-Efficiency Clean Combustion Engine Designs for Compression...

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

    Russ Durrett For Public Release GM R&D - Diesel Engine Systems High-Efficiency Clean Combustion Engine Designs for Compression Ignition Engines Russ Durrett, Xin He - General...

  18. Lean transformation and relocation of jet engine assembly operations

    E-Print Network [OSTI]

    Hale, Stephen Andrew

    2011-01-01T23:59:59.000Z

    As part of continuing lean transformation efforts at Pratt & Whitney, the Middletown Engine Center has turned its focus on the GP7000 turbofan engine as a target for lean implementation. Projected increases in GP7000 ...

  19. 3-D Finite Element Electromagnetic and Stress Analyses of the JET LB-SRP Divertor Element (Tungsten Lamella Design)

    E-Print Network [OSTI]

    3-D Finite Element Electromagnetic and Stress Analyses of the JET LB-SRP Divertor Element (Tungsten Lamella Design)

  20. Clamping of Solid Tungsten Components for the Bulk W Divertor Row in JET – Precautionary Design for a Brittle Material

    E-Print Network [OSTI]

    Clamping of Solid Tungsten Components for the Bulk W Divertor Row in JET – Precautionary Design for a Brittle Material

  1. Volume 1, Issue 1 Engineering by Design

    E-Print Network [OSTI]

    Volume 1, Issue 1 Engineering by Design 5 King's College Rd. Toronto, ON M5S 3G8 mie Engineering University of Toronto 5 King's College Rd. Toronto, ON M5S 3G8 momentum@mie.utoronto.ca mie

  2. Designing Energy-Efficient Fetch Engines

    E-Print Network [OSTI]

    Co, Michele

    Designing Energy-Efficient Fetch Engines Michele Co Department of Computer Science University · Results · Summary #12;3 Introduction · Energy efficiency ­ Balance power and performance (runtime) · Fetch & Ranganathan] #12;7 Why Study Fetch Engine Energy Efficiency? · High fetch bandwidth mechanisms ­ Rotenberg, et

  3. A unified theory of engineering design

    E-Print Network [OSTI]

    Dyas, Scott Patrick

    2007-04-25T23:59:59.000Z

    . [1] 2. Establishing a set of rules is a way to make design more scientific. [2] ___________________ This thesis follows the style of Society of Automotive Engineers. 2 3. Creating a formal method of describing and organizing...

  4. EPISODIC JETS AS THE CENTRAL ENGINE OF GAMMA-RAY BURSTS

    SciTech Connect (OSTI)

    Yuan Feng [Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030 (China); Zhang Bing, E-mail: fyuan@shao.ac.cn, E-mail: zhang@physics.unlv.edu [Department of Physics and Astronomy, University of Nevada Las Vegas, Las Vegas, NV 89154 (United States)

    2012-09-20T23:59:59.000Z

    Most gamma-ray bursts (GRBs) have erratic light curves, which demand that the GRB central engine launches an episodic outflow. Recent Fermi observations of some GRBs indicate a lack of the thermal photosphere component as predicted by the baryonic fireball model, which suggests a magnetic origin of GRBs. Given that powerful episodic jets have been observed along with continuous jets in other astrophysical black hole systems, here we propose an intrinsically episodic, magnetically dominated jet model for the GRB central engine. Accumulation and eruption of free magnetic energy in the corona of a differentially rotating, turbulent accretion flow around a hyperaccreting black hole lead to ejections of episodic, magnetically dominated plasma blobs. These blobs are accelerated magnetically, collide with each other at large radii, trigger rapid magnetic reconnection and turbulence, efficient particle acceleration, and radiation, and power the observed episodic prompt gamma-ray emission from GRBs.

  5. Fusion Engineering and Design 41 (1998) 491499 Engineering design of the ARIES-RS power plant

    E-Print Network [OSTI]

    California at San Diego, University of

    1998-01-01T23:59:59.000Z

    Fusion Engineering and Design 41 (1998) 491­499 Engineering design of the ARIES-RS power plant M 92093-0417, USA Abstract ARIES-RS is a fusion power plant design study which has examined the ability of an advanced tokamak-based power plant to compete with future energy sources and play a significant role

  6. Experimental Dependability Evaluation of a Fail-Bounded Jet Engine Control System for Unmanned Aerial Vehicles

    E-Print Network [OSTI]

    Karlsson, Johan

    having only minor effect on the jet engine (7.0%), while 20.1% of the errors were detected by hardware exceptions and 1.9% were detected by executable assertions in the software. The remaining 1.6% is classified. This is especially true for applications such as Unmanned Aerial Vehicles (UAVs). The market for military UAVs

  7. A Narrow Short-Duration GRB Jet from a Wide Central Engine

    E-Print Network [OSTI]

    Duffell, Paul C; MacFadyen, Andrew I

    2015-01-01T23:59:59.000Z

    We use two-dimensional relativistic hydrodynamic numerical calculations to show that highly collimated relativistic jets can be produced in neutron star merger models of short-duration gamma ray bursts without the need for a highly directed engine or a large net magnetic flux. Even a hydrodynamic engine generating a very wide sustained outflow on small scales can in principle produce a highly collimated relativistic jet, facilitated by a dense surrounding medium which provides a cocoon surrounding the jet core. An oblate geometry to the surrounding gas significantly enhances the collimation process. Previous numerical simulations have shown that the merger of two neutron stars produces an oblate, expanding cloud of dynamical ejecta. We show that this gas can efficiently collimate the central engine power much as the surrounding star does in long-duration GRB models. For typical short-duration GRB central engine parameters, we find jets with opening angles of order 10 degrees in which a large fraction of the t...

  8. Science as Art: Jet Engine Airflow | GE Global Research

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiationImplementingnpitcheResearch BriefsTenney,Science and Technology Review MarchJet

  9. Geothermal direct use engineering and design guidebook

    SciTech Connect (OSTI)

    Lienau, P.J.; Lunis, B.C. (eds.)

    1991-01-01T23:59:59.000Z

    The Geothermal Direct Use Engineering and Design Guidebook is designed to be a comprehensive, thoroughly practical reference guide for engineers and designers of direct heat projects. These projects could include the conversion of geothermal energy into space heating and cooling of buildings, district heating, greenhouse heating, aquaculture and industrial processing. The Guidebook is directed at understanding the nature of geothermal resources and the exploration of the resources, fluid sampling techniques, drilling, and completion of geothermal wells through well testing, and reservoir evaluation. It presents information useful to engineers on the specification of equipment including well pumps, piping, heat exchangers, space heating equipment, heat pumps and absorption refrigeration. A compilation of current information about greenhouse aquaculture and industrial applications is included together with a discussion of engineering cost analysis, regulation requirements, and environmental consideration. The purpose of the Guidebook is to provide an integrated view for the development of direct use projects for which there is a very large potential in the United States.

  10. Geothermal direct use engineering and design guidebook

    SciTech Connect (OSTI)

    Bloomquist, R.G.; Culver, G.; Ellis, P.F.; Higbee, C.; Kindle, C.; Lienau, P.J.; Lunis, B.C.; Rafferty, K.; Stiger, S.; Wright, P.M.

    1989-03-01T23:59:59.000Z

    The Geothermal Direct Use Engineering and Design Guidebook is designed to be a comprehensive, thoroughly practical reference guide for engineers and designers of direct heat projects. These projects could include the conversion of geothermal energy into space heating cooling of buildings, district heating, greenhouse heating, aquaculture and industrial processing. The Guidebook is directed at understanding the nature of geothermal resources and the exploration of these resources, fluid sampling techniques, drilling, and completion of geothermal wells through well testing, and reservoir evaluation. It presents information useful to engineers on the specification of equipment including well pumps, piping, heat exchangers, space heating equipment, heat pumps and absorption refrigeration. A compilation of current information about greenhouse, aquaculture and industrial applications is included together with a discussion of engineering cost analysis, regulation requirements, and environmental considerations. The purpose of the Guidebook is to provide an integrated view for the development of direct use projects for which there is a very potential in the United States.

  11. Collaborative Reverse Engineering Design Experiment Using PLM Solutions*

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Collaborative Reverse Engineering Design Experiment Using PLM Solutions* FREDERIC SEGONDS,1 NICOLAS Managament'' (PLM) concepts. Finally, we present some modifications in collaborative design courses for our of the design environment. Keywords: reverse engineering; education, PLM; collaborative design 1. Recent changes

  12. HYPERACCRETING BLACK HOLE AS GAMMA-RAY BURST CENTRAL ENGINE. I. BARYON LOADING IN GAMMA-RAY BURST JETS

    SciTech Connect (OSTI)

    Lei Weihua [School of Physics, Huazhong University of Science and Technology, Wuhan 430074 (China); Zhang Bing [Department of Physics and Astronomy, University of Nevada Las Vegas, 4505 Maryland Parkway, Box 454002, Las Vegas, NV 89154-4002 (United States); Liang Enwei, E-mail: leiwh@hust.edu.cn, E-mail: zhang@physics.unlv.edu [Department of Physics and GXU-NAOC Center for Astrophysics and Space Sciences, Guangxi University, Nanning 530004 (China)

    2013-03-10T23:59:59.000Z

    A hyperaccreting stellar-mass black hole has been long speculated as the best candidate for the central engine of gamma-ray bursts (GRBs). Recent rich observations of GRBs by space missions such as Swift and Fermi pose new constraints on GRB central engine models. In this paper, we study the baryon-loading processes of a GRB jet launched from a black hole central engine. We consider a relativistic jet powered by {nu} {nu}-bar -annihilation or by the Blandford-Znajek (BZ) mechanism. We consider baryon loading from a neutrino-driven wind launched from a neutrino-cooling-dominated accretion flow. For a magnetically dominated BZ jet, we consider neutron drifting from the magnetic wall surrounding the jet and subsequent positron capture and proton-neutron inelastic collisions. The minimum baryon loads in both types of jet are calculated. We find that in both cases a more luminous jet tends to be more baryon poor. A neutrino-driven ''fireball'' is typically ''dirtier'' than a magnetically dominated jet, while a magnetically dominated jet can be much cleaner. Both models have the right scaling to interpret the empirical {Gamma}-L{sub iso} relation discovered recently. Since some neutrino-driven jets have too much baryon loading as compared with the data, we suggest that at least a good fraction of GRBs should have a magnetically dominated central engine.

  13. Guidelines for Engineering, Design, and Inspection Costs

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-03-28T23:59:59.000Z

    Engineering, design, and inspection (ED&I) activities begin with the preliminary design (Title I). Pre-Title I activities are not considered part of the ED&I activities. Architectural/Engineering (A/E) activities are part of the ED&I activities. A/E activities are services that are an integral part of the production and delivery of the design plans, specifications, and drawings. This chapter defines ED&I and A/E activities and discusses how to estimate and track them.

  14. Journal of Engineering Design, Vol. 10, No. 2, 1999 De ning the Engine Design Process

    E-Print Network [OSTI]

    Salustri, Filippo A.

    the authors investigated the company's existing design process, identi® ed areas for improvement engineering enterprises, there is constant pressure to shorten lead times while improving product quality. LOCKLEDGE & FILIPPO A. SALUSTRI SUMMARY Shortening design lead times while maintaining product quality

  15. ORE 601 Ocean and Resources Engineering Laboratory Designation

    E-Print Network [OSTI]

    Frandsen, Jannette B.

    ORE 601 Ocean and Resources Engineering Laboratory Designation Core course Catalog Description This course aims to provide ocean and resources engineering students with the fundamentals necessary Program Outcome 2: Basic science, mathematics, & engineering Program Outcome 3: Ocean engineering core

  16. Chemical engineers design, control and optimize large-scale chemical,

    E-Print Network [OSTI]

    Rohs, Remo

    , Biochemical, Environmental, Petroleum Engineering and Nantoechnology. CHEMICAL&MATERIALSSCIENCE CHE OVERVIEW of Science 131 units · Chemical Engineering (Petroleum) Bachelor of Science 136 units · Chemical Engineering38 Chemical engineers design, control and optimize large-scale chemical, physicochemical

  17. 2012 Engineering Senior Design Winners Bioengineering Session 1

    E-Print Network [OSTI]

    Holliday, JoAnne

    1 2012 Engineering Senior Design Winners Bioengineering Session 1 Engineering a Cell: Paul Davison, Gerardo Noriega Civil Engineering Session 1 Highway Interchange Design Matthew Approach to Disaster Relief Housing Quinn Peck, Scott Wallace Advisor: Reynaud Serrette Civil

  18. Conjugated Polymer Design and Engineering for Organic Electronics

    E-Print Network [OSTI]

    Woo, Claire Hoi Kar

    2011-01-01T23:59:59.000Z

    Design and Engineering for Organic Electronics By Claire Hoi Kar Woo Doctor of Philosophy in Chemical

  19. Performance and design improvements toward the commercialization of a needle-free jet injector/

    E-Print Network [OSTI]

    Modak, Ashin (Ashin Pramod)

    2013-01-01T23:59:59.000Z

    In the past years, the BioInstrumentation Lab has developed a handheld needle-free jet injector based on a custom Lorentz-force motor. While the current handheld design is effective as a research tool, many improvements ...

  20. Design Squad seasons 1 and 2 : an engineering perspective

    E-Print Network [OSTI]

    Powers, Benjamin G. (Benjamin George), 1980-

    2008-01-01T23:59:59.000Z

    This thesis describes the engineering tasks associated with production of Design Squad, a reality-based television program on WGBH. In Design Squad a client gives two teams of high school students an engineering design ...

  1. Pulsed jet combustion generator for non-premixed charge engines

    DOE Patents [OSTI]

    Oppenheim, A. K. (Berkeley, CA); Stewart, H. E. (Alameda, CA)

    1990-01-01T23:59:59.000Z

    A device for introducing fuel into the head space of cylinder of non-premixed charge (diesel) engines is disclosed, which distributes fuel in atomized form in a plume, whose fluid dynamic properties are such that the compression heated air in the cylinder head space is entrained into the interior of the plume where it is mixed with and ignites the fuel in the plume interior, to thereby control combustion, particularly by use of a multiplicity of individually controllable devices per cylinder.

  2. Fusion Engineering and Design 82 (2007) 26962704 Engineering challenges in designing an attractive compact

    E-Print Network [OSTI]

    Najmabadi, Farrokh

    2007-01-01T23:59:59.000Z

    -CS. is a dual-coolant (He + Pb­17Li) ferritic-steel mod- ular blanket concept coupled with a Brayton power cycle plant; Engineering design 1. Introduction The ARIES-CS team is conducting the final phase of its

  3. 3F6 -Software Engineering and Design Concurrent Systems I

    E-Print Network [OSTI]

    Young, Steve

    3F6 - Software Engineering and Design Handout 13 Concurrent Systems I With Markup Steve Young #12 #12;2 Engineering Part IIA: 3F6 - Software Engineering and Design Levels of Concurrency Concurrency should always assume that the concurrency is real! eg Core Duo #12;6 Engineering Part IIA: 3F6 - Software

  4. ENES 100 Introduction to Engineering Design Hovercraft Product Specifications

    E-Print Network [OSTI]

    Jacob, Bruce

    requirements (a) The use of internal combustion engines (gas and glow fuel engines) is prohibited. (bENES 100 Introduction to Engineering Design Hovercraft Product Specifications HC_PS_005 Rev. A, 28 to Engineering Design Hovercraft Product Specifications HC_PS_005 Rev. A, 28 August 2008 Figure 1: The test

  5. ENES 100 Introduction to Engineering Design Hovercraft Product Specifications

    E-Print Network [OSTI]

    Jacob, Bruce

    requirements (a) The use of internal combustion engines (gas and glow fuel engines) is prohibited. (bENES 100 Introduction to Engineering Design Hovercraft Product Specifications HC_PS_004 Rev. A, 22 100 Introduction to Engineering Design Hovercraft Product Specifications HC_PS_004 Rev. A, 22 January

  6. CEE 812 Structural Engineering Seminar Series Design and Construction

    E-Print Network [OSTI]

    Kamat, Vineet R.

    heavy industrial sectors, involved with project development, strategic analysis, engineering designCEE 812 ­ Structural Engineering Seminar Series Design and Construction of Energy Industry with energy industry structures, including nuclear power plants, wind turbines and foundations, and stacks

  7. CRAD, Integrated Safety Basis and Engineering Design Review ...

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

    Integrated Safety Basis and Engineering Design Review - August 20, 2014 (EA CRAD 31-4, Rev. 0) CRAD, Integrated Safety Basis and Engineering Design Review - August 20, 2014 (EA...

  8. ORE 630 Structural Analysis in Ocean Engineering Designation

    E-Print Network [OSTI]

    Frandsen, Jannette B.

    ORE 630 Structural Analysis in Ocean Engineering Designation Offshore Engineering Required Course to Program Outcomes Program Outcome 2: Basic science, mathematics, & engineering Program Outcome 4: Ocean engineering specialization Program Outcome 5: Use of latest tools in ocean engineering Program Outcome 6

  9. Chemical engineers design, control and optimize large-scale chemical,

    E-Print Network [OSTI]

    Rohs, Remo

    Emphasis in Nanotechnology · ChemicalEngineering Emphasis in Petroleum Engineering · ChemicalEngineering38 Chemical engineers design, control and optimize large-scale chemical, physicochemical and electronics fields. Chemical Engineers are employed in areas as diverse as the chemical, materials, energy

  10. Chemical engineers design, control and optimize large-scale chemical,

    E-Print Network [OSTI]

    Rohs, Remo

    in Nanotechnology · ChemicalEngineering Emphasis in Petroleum Engineering · ChemicalEngineering Emphasis in Polymers38 Chemical engineers design, control and optimize large-scale chemical, physicochemical and electronics fields. Chemical Engineers are employed in areas as diverse as the chemical, pharmaceutical

  11. Engineering report (conceptual design) PFP solution stabilization

    SciTech Connect (OSTI)

    Witt, J.B.

    1997-07-17T23:59:59.000Z

    This Engineering Report (Conceptual Design) addresses remediation of the plutonium-bearing solutions currently in inventory at the Plutonium Finishing Plant (PFP). The recommendation from the Environmental Impact Statement (EIS) is that the solutions be treated thermally and stabilized as a solid for long term storage. For solutions which are not discardable, the baseline plan is to utilize a denitration process to stabilize the solutions prior to packaging for storage.

  12. Software Engineering for Space Exploration Iowa State University and Jet Propulsion Laboratory/California Institute of Technology

    E-Print Network [OSTI]

    Lutz, Robyn R.

    and Techniques, D.2.4.g Reliability, D.2.7 Distribution, Maintenance and Enhancement, D.2.15 Software and System Safety. 1. Software engineering plays a vital role in space exploration Innovations in robotic spacecraft1 Software Engineering for Space Exploration Robyn Lutz Iowa State University and Jet

  13. Early afterglow, magnetized central engine, and a quasi-universal jet configuration for long GRBs

    E-Print Network [OSTI]

    Bing Zhang; Shiho Kobayashi; Peter Meszaros; Nicole M. Lloyd-Ronning; Xinyu Dai

    2003-12-17T23:59:59.000Z

    Two separate topics are discussed. (1) We describe the classifications of the long GRB early afterglow lightcurves within the framework of the fireball shock model, focusing on the interplay between the reverse and forward shock emission components. We will also provide evidence that the central engine of at least two bursts are entrained with strong magnetic fields, and discuss the implications of this result for our understanding of the GRB phenomenon; (2) We argue that the current gamma-ray burst (GRB) and X-ray flash (XRF) data are consistent with a picture that all GRB-XRF jets are structured and quasi-universal, with a typical Gaussian-like jet structure.

  14. Collaborative Ontological Engineering of Instructional Design Knowledge for an ITS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Collaborative Ontological Engineering of Instructional Design Knowledge for an ITS Authoring could rely on content-based engineering of instructional design (ID) knowledge, i.e. based on principles. Collaborative Ontological Engineering of Instructional Design Knowledge: Challenges of such an Enterprise

  15. Concurrent Engineering for Mission Design in Different Cultures

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Concurrent Engineering for Mission Design in Different Cultures by Akira Ogawa M.S., Mechanical;3 Concurrent Engineering for Mission Design in Different Cultures by Akira Ogawa Submitted to the System Design. As the information technology revolution occurred in 1990's, Integrated Concurrent Engineering (ICE) was invented

  16. DUFFY, Alex Department of Design, Manufacture and Engineering

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    development requirements within Concurrent Engineering (CE). The design teams do not wait to get the resultDUFFY, Alex Department of Design, Manufacture and Engineering Management University of Strathclyde.troussier@utt.fr Abstract-- Computer Aided Design (CAD) and Computer Aided Engineering (CAE) models are often used during

  17. Electrical Engineering and Computer Cross-Layer Design

    E-Print Network [OSTI]

    Electrical Engineering and Computer Science Cross-Layer Design and Analysis of Wireless Networks Layer Design #12;Electrical Engineering and Computer Science Layered Approach Presentation Layer Session;Electrical Engineering and Computer Science Why not cross-layer design? · Difficulty. · Lack of insight

  18. Engineering Design Review Charge Quadrupole Cold Mass MQXB

    E-Print Network [OSTI]

    Large Hadron Collider Program

    . Planned Design Reviews: An EDR is to be conducted when most of the R&D is complete and the engineering design has been finalized. For a system to pass the EDR, it must be demonstrated that all of the technical and engineering challenges have been adequately addressed. This Engineering Design Review (EDR

  19. College of Engineering 20052006 Student Design Showcase

    E-Print Network [OSTI]

    Wood, Stephen L.

    Engineering · Marine and Environmental Systems Ocean Engineering · Mechanical and Aerospace Engineering ......................................................................................................................... 39 Marine and Environmental Systems.................................................................... 43 PHISH--Perfected High-Speed Internal-Combustion Solar Hybrid

  20. CONCURRENT ENGINEERING: Research and Applications On Validating Engineering Design Decision Support Tools

    E-Print Network [OSTI]

    Lewis, Kemper E.

    CONCURRENT ENGINEERING: Research and Applications On Validating Engineering Design Decision Support the concurrent engineering research community. Key Words: Decision Based Design (DBD), House of Quality, Suh specifically for concurrent engineering applications. This list is by no means exhaustive, as other decision

  1. Computer software engineers design, create, and modify computer applications.

    E-Print Network [OSTI]

    Computer software engineers design, create, and modify computer applications. Computer Software Engineers (0*NET 15-1031.00, 15-1032.00) Significant Points Computer software engineers are projected are expected for college graduates with at least a bachelor's degree in computer engineering or computer

  2. An update on acoustics designs for HVAC (Engineering) K. Marriott

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    An update on acoustics designs for HVAC (Engineering) K. Marriott IOA, 29a Ashburton Road, Croydon and Air Conditioning (HVAC) engineer is to engineer ways for keeping these factors under control the HVAC engineer's environmental requirements while minimizing noise generated in the process considering

  3. Chemical engineers design, control and optimize large-scale chemical,

    E-Print Network [OSTI]

    Rohs, Remo

    · ChemicalEngineering (Nanotechnology) Bachelor of Science 131 units · ChemicalEngineering(Petroleum38 Chemical engineers design, control and optimize large-scale chemical, physicochemical and electronics fields. Chemical Engineers are employed in areas as diverse as the chemical, pharmaceutical

  4. Proceedings of DETC'01 2001 ASME Design Engineering Technical Conferences

    E-Print Network [OSTI]

    Tsao, Tsu-Chin

    Proceedings of DETC'01 2001 ASME Design Engineering Technical Conferences September 9-12, 2001 Copyright 2001 by ASME Proceedings of DETC'01 ASME 2001 Design Engineering Technical Conference and Computers and Information in Engineering Conference Pittsburgh, PA, September 9-12, 2001 #12;works cited

  5. ECE 111 and 118 ENGINEERING DESIGN PROJECT DESCRIPTION FORM

    E-Print Network [OSTI]

    Fainman, Yeshaiahu

    . It is a decision-making process (often iterative), in which the basic sciences and mathematics and engineering, such as economic factors, safety, reliability, aesthetics, ethics, and social impact. (Electrical EngineeringECE 111 and 118 ENGINEERING DESIGN PROJECT DESCRIPTION FORM Specifications for the Design Course

  6. Energy distribution and computer modeled nozzle design in high pressure water jet coating removal

    SciTech Connect (OSTI)

    Blades, B. [Hobart Tafa Technologies Inc., Concord, NH (United States)

    1994-12-31T23:59:59.000Z

    Wider acceptance of water jet coating removal as an industrial process has created a demand to better understand the physical phenomena occurring during coating removal. This demand stems from both technical and process control concerns. Research on behavior of coating removal nozzles and high pressure jets in general provide the basis for the development of a mathematical model of rotating nozzle. The model finds uses in both process development and new equipment design. Data confirming the validity of the model has been generated and the need for further refinement of the model has been noted.

  7. Master's programme in Engineering Design Programme outline

    E-Print Network [OSTI]

    Lagergren, Jens

    systems, simulators). The Internal Combustion Engines track covers a broad range of topics in depth- chatronics, and internal combustion engines.the main objective of this programme is to produce engineers

  8. Engineering design of vertical test stand cryostat

    SciTech Connect (OSTI)

    Suhane, S.K.; Sharma, N.K.; Raghavendra, S.; Joshi, S.C.; Das, S.; Kush, P.K.; Sahni, V.C.; Gupta, P.D.; /Indore, Ctr. for Advanced Tech.; Sylvester, C.; Rabehl, R.; Ozelis, J.; /Fermilab

    2011-03-01T23:59:59.000Z

    Under Indian Institutions and Fermilab collaboration, Raja Ramanna Centre for Advanced Technology and Fermi National Accelerator Laboratory are jointly developing 2K Vertical Test Stand (VTS) cryostats for testing SCRF cavities at 2K. The VTS cryostat has been designed for a large testing aperture of 86.36 cm for testing of 325 MHz Spoke resonators, 650 MHz and 1.3 GHz multi-cell SCRF cavities for Fermilab's Project-X. Units will be installed at Fermilab and RRCAT and used to test cavities for Project-X. A VTS cryostat comprises of liquid helium (LHe) vessel with internal magnetic shield, top insert plate equipped with cavity support stand and radiation shield, liquid nitrogen (LN{sub 2}) shield and vacuum vessel with external magnetic shield. The engineering design and analysis of VTS cryostat has been carried out using ASME B&PV Code and Finite Element Analysis. Design of internal and external magnetic shields was performed to limit the magnetic field inside LHe vessel at the cavity surface <1 {micro}T. Thermal analysis for LN{sub 2} shield has been performed to check the effectiveness of LN{sub 2} cooling and for compliance with ASME piping code allowable stresses.

  9. Department of Mechanical Engineering Spring 2013 Designing an educational dissection activity for a four cylinder engine

    E-Print Network [OSTI]

    Demirel, Melik C.

    activity for a four cylinder engine Overview General Motors had donated several four cylinder Chevy CruzePENNSTATE Department of Mechanical Engineering Spring 2013 Designing an educational dissection engines to the university. The team was challenged with creating an activity that uses these engines

  10. Engineering Design and Safety Basis Inspection Criteria, Inspection...

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

    to this is our commitment to enhance our program. Therefore, we have developed the Engineering Design and Safety Basis Inspection Criteria, Inspection Activities, and Lines of...

  11. Geothermal Direct Use Engineering and Design Guidebook - Chapter...

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Book Section: Geothermal Direct Use Engineering and Design Guidebook - Chapter 6 - Drilling and Well Construction Abstract Drilling...

  12. Characterization and 3-D Modeling of Ni60Ti SMA for Actuation of a Variable Geometry Jet Engine Chevron

    E-Print Network [OSTI]

    aerodynamic devices along the trailing edge of a jet engine primary and secondary exhaust nozzle, known. To achieve the noise reduction, the secondary exhaust nozzle chevrons are typically immersed into the fan. This is the basis for the well known shape memory effect. As a result of this beneficial strain recovery behavior

  13. aircraft engine design: Topics by E-print Network

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

    to select and design components. 2 Wang, Deli 473 A Study on Design Parameters of Stirling Engines for Buildings Texas A&M University - TxSpace Summary: One of the most...

  14. PROCESS SYSTEMS ENGINEERING Design of Flexible Reduced Kinetic Mechanisms

    E-Print Network [OSTI]

    Androulakis, Ioannis (Yannis)

    PROCESS SYSTEMS ENGINEERING Design of Flexible Reduced Kinetic Mechanisms Avinash R. Sirdeshpande and Marianthi G. Ierapetritou Dept. of Chemical and Biochemical Engineering, Rutgers, The State UniversityMobil Research and Engineering, Annandale, NJ 08801 Reduced mechanisms are often used in place of detailed

  15. carleton.ca/ engineering-design

    E-Print Network [OSTI]

    .......................28 Sustainable and Renewable Energy Engineering ......................30 Efficient Energy Generation, Canada's national capital. Here, your program, your university experience and your future success are our-winning teachers, Canada Research Chair holders and extraordinary professors share their passion for engineering

  16. AME40463: Senior Design Project Spring 2010 ENGINEERING TRADE STUDY

    E-Print Network [OSTI]

    Batill, Stephen M.

    AME40463: Senior Design Project ­ Spring 2010 ENGINEERING TRADE STUDY The engineering trade study indicate how that information influenced design decisions for the platform. Trade Study Proposal (due Feb prior to the beginning of the all-class meeting at 9:30 a.m. Trade Study Report (due Feb. 23): The trade

  17. Industry-Sponsored Design Projects for Freshmen Engineering Graphics Students

    E-Print Network [OSTI]

    Ben-Yakar, Adela

    Industry-Sponsored Design Projects for Freshmen Engineering Graphics Students Ronald E. Barr "Engineering Design and Graphics" course is an integral part of curriculum reform efforts throughout in implementing these PROCEED objectives in the freshman graphics course using a Robotic Blade Assembly supplied

  18. ORNL engineering design and construction reengineering report

    SciTech Connect (OSTI)

    McNeese, L.E.

    1998-01-01T23:59:59.000Z

    A team composed of individuals representing research and development (R and D) divisions, infrastructure support organizations, and Department of Energy (DOE)-Oak Ridge Operations was chartered to reengineer the engineering, design, and construction (ED and C) process at Oak Ridge National Laboratory (ORNL). The team recognized that ED and C needs of both R and D customers and the ORNL infrastructure program have to be met to maintain a viable and competitive national laboratory. Their goal was to identify and recommend implementable best-in-class ED and C processes that will efficiently and cost-effectively support the ORNL R and D staff by being responsive to their programmatic and infrastructure needs. The team conducted process mapping of current and potential ED and C approaches, developed idealized versions of ED and C processes, and identified potential barriers to an efficient ED and C process. Eight subteams were assigned to gather information and to evaluate the significance of potential barriers through benchmarking, surveys, interviews, and reviews of key topical areas in order to determine whether the perceived barriers were real and important and whether they resulted from laws or regulations over which ORNL has no control.

  19. Classification concepts from object oriented software design applied to engineering design

    E-Print Network [OSTI]

    Krishnamurthy, Ritesh

    2002-01-01T23:59:59.000Z

    classification charts, so as to make them more useful to both neophyte and experienced engineering designers. Engineering components have evolved from their basic forms into families of components and sub-components. Classification charts are often used...

  20. Caterpillar, Argonne undertake cooperative virtual engine design...

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

    project By Jared Sagoff * June 30, 2014 Tweet EmailPrint ARGONNE, Ill - Internal combustion engines are poised for dramatic breakthroughs in improving efficiency with lower...

  1. Mechanical Engineering & Design Group (AES-MED)

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

    Techniques Sectors Directory Status and Schedule Safety and Training Divisions APS Engineering Support Division AES Groups Accelerator Systems Division ASD Groups X-ray Science...

  2. Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-Print Network [OSTI]

    Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers generation of low-level code that can be solved using GAMS and its solvers (BARON). This framework 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences

  3. Junior Team Design This competition challenges junior engineering students to design and build a prototype to

    E-Print Network [OSTI]

    Saskatchewan, University of

    Junior Team Design This competition challenges junior engineering students to design and build a prototype to address a technical problem. The Junior Team Design category is similar to the Senior Team Design competition, but emphasis is placed on prototype functionality rather than design theory. Team

  4. Junior Team Design This competition challenges junior engineering students to design and build a

    E-Print Network [OSTI]

    Saskatchewan, University of

    Junior Team Design This competition challenges junior engineering students to design and build a prototype to address a technical problem. The Junior Team Design category is similar to the Senior Team Design competition, but emphasis is placed on prototype functionality rather than design theory. Team

  5. VANDERBILTSENIOR DESIGN PROJECTS SCHOOL OF ENGINEERING

    E-Print Network [OSTI]

    Simaan, Nabil

    .................................................10 Design of Scalable Biogas Digester for the Developing World..............................................................................................9 Biogas to Electricity Conversion

  6. Designing Pre-College Engineering Curricula and

    E-Print Network [OSTI]

    Christensen, Marc P.

    by Southern Methodist University. The authors are with the SMU School of Engineering, Southern Methodist University, Dallas, Texas 75275 USA (e-mail: douglas@engr.smu.edu; mpc@engr.smu.edu; gorsak@engr.smu

  7. The Integrated Computer Engineering Design (ICED) Curriculum Augustus K. Uht

    E-Print Network [OSTI]

    Uht, Augustus K.

    The Integrated Computer Engineering Design (ICED) Curriculum Augustus K. Uht Department computer engineering curriculum, ICED, is being introduced at the University of Rhode Island. The main. This paper gives the rationale of ICED in depth, and describes the core courses, their activities and use

  8. Designing Energy-Efficient Fetch Engines A Dissertation

    E-Print Network [OSTI]

    Co, Michele

    Designing Energy-Efficient Fetch Engines A Dissertation Presented to the faculty of the School;Abstract This dissertation evaluates factors that affect the energy-efficiency of the fetch engine overall processor energy-efficiency. Cooling costs, extending battery life in mobile devices, and reducing

  9. Designing EnergyEfficient Fetch Engines A Dissertation

    E-Print Network [OSTI]

    Co, Michele

    Designing Energy­Efficient Fetch Engines A Dissertation Presented to the faculty of the School; Abstract This dissertation evaluates factors that affect the energy­efficiency of the fetch engine overall processor energy­efficiency. Cooling costs, extending battery life in mobile devices, and reducing

  10. Designing Engineering Systems for Sustainability Peter Sandborn and Jessica Myers

    E-Print Network [OSTI]

    Sandborn, Peter

    , and productivity over time, [6.4]. The objective of environmental sustainability is to increase energy and material6 Designing Engineering Systems for Sustainability Peter Sandborn and Jessica Myers CALCE, Department of Mechanical Engineering, University of Maryland Abstract Sustainability means keeping

  11. CR Systems Engineering and Design March 2003 COMMUNICATIONS RESOURCES

    E-Print Network [OSTI]

    California at Davis, University of

    CR Systems Engineering and Design March 2003 UCDAVIS COMMUNICATIONS RESOURCES CONFINED SPACE ENTRY to a combustible particulate is defined as a concentration greater than 20 percent of the minimum explosive as the atmospheric concentration immediately hazardous to life or health (IDLH). 1 #12;CR Systems Engineering

  12. Integration of engineering models in computer-aided preliminary design

    E-Print Network [OSTI]

    Lajoie, Ronnie M.

    The problems of the integration of engineering models in computer-aided preliminary design are reviewed. This paper details the research, development, and testing of modifications to Paper Airplane, a LISP-based computer ...

  13. Proceedings of the 1999 ASME Design Engineering Technical Conferences

    E-Print Network [OSTI]

    Stanford University

    Proceedings of the 1999 ASME Design Engineering Technical Conferences September 12­15, 1999, Las legacy applications (a building code analysis service and a service that generates and displays

  14. Facing reality : design and management of flexible engineering systems

    E-Print Network [OSTI]

    Cardin, Michel-Alexandre, 1979-

    2007-01-01T23:59:59.000Z

    This thesis proposes a practical approach to defining flexible design and development strategies for maximizing the expected value of engineering systems. Specifically, the approach deals with the fact that it is generally ...

  15. A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System

    E-Print Network [OSTI]

    Norwood, Zachary Mills

    2011-01-01T23:59:59.000Z

    Figures A typical wet steam Rankine cycle on a temperature-A Better Steam Engine: Designing a Distributed Concentrating2011 Abstract A Better Steam Engine: Designing a Distributed

  16. Fusion Engineering and Design 38 (1997) 189218 ARIES-RS safety design and analysis

    E-Print Network [OSTI]

    Fusion Engineering and Design 38 (1997) 189­218 ARIES-RS safety design and analysis D. Steiner *, L Polytechnic Institute, Department of En6ironmental and Energy Engineering, JEC 5049, Troy NY 12180-3590, USA assessment indicates that the dose at the site boundary will be less than 1 rem per year. Thus, no sheltering

  17. Design, manufacture and initial operation of the beryllium components of the JET ITER-like wall

    E-Print Network [OSTI]

    Riccardo, V; Matthews, G F; Nunes, I; Thompson, V; Villedieu, E; Contributors, JET EFDA

    2013-01-01T23:59:59.000Z

    The aim of the JET ITER-like Wall Project was to provide JET with the plasma facing material combination now selected for the DT phase of ITER (bulk beryllium main chamber limiters and a full tungsten divertor) and, in conjunction with the upgraded neutral beam heating system, to achieve ITER relevant conditions. The design of the bulk Be plasma facing components had to be compatible with increased heating power and pulse length, as well as to reuse the existing tile supports originally designed to cope with disruption loads from carbon based tiles and be installed by remote handling. Risk reduction measures (prototypes, jigs, etc) were implemented to maximize efficiency during the shutdown. However, a large number of clashes with existing components not fully captured by the configuration model occurred. Restarting the plasma on the ITER-like Wall proved much easier than for the carbon wall and no deconditioning by disruptions was observed. Disruptions have been more threatening than expected due to the redu...

  18. MECH 491 Mechanical Engineering Design I -Project Description Project Topic: A corrosion fatigue experiment setup design

    E-Print Network [OSTI]

    Muradoglu, Metin

    Topic: A deformation setup design for testing of small scale metallic materials Project DescriptionProject 1 MECH 491 ­ Mechanical Engineering Design I - Project Description Project Topic: A corrosion fatigue experiment setup design Project Description: It is required for the students to design

  19. Engineered waste-package-system design specification

    SciTech Connect (OSTI)

    Not Available

    1983-05-01T23:59:59.000Z

    This report documents the waste package performance requirements and geologic and waste form data bases used in developing the conceptual designs for waste packages for salt, tuff, and basalt geologies. The data base reflects the latest geotechnical information on the geologic media of interest. The parameters or characteristics specified primarily cover spent fuel, defense high-level waste, and commercial high-level waste forms. The specification documents the direction taken during the conceptual design activity. A separate design specification will be developed prior to the start of the preliminary design activity.

  20. ITER Engineering Design Activities ITER Technical Characteristics

    E-Print Network [OSTI]

    essential fusion reactor technologies and components. Design Use existing technology and physics database Solenoid Range of Performance (Inductive) Q = Energy Multiplcation I = Plasma Current Pfus = Fusion Power

  1. ELSEVIER Fusion Engineering and Design 27 (1995) 111-153 Engineering

    E-Print Network [OSTI]

    Abdou, Mohamed

    neutron source for fusion nuclear technology testing and development Mohamed A. Abdou Mechanical.A. Abdou / Fusion Engineering and Design 27 (1995) 111-153 1. Introduction Fusion nuclear technology (FNT

  2. Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-Print Network [OSTI]

    Rhoads, Jeffrey F.

    Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers bandpass filters based on cyclically-coupled, closed-chain resonator configurations and specifically exhibit improved ripple metrics, reduced frequency dependence Address all correspondence to this author

  3. Chemical engineers design, control and optimize large-scale chemical, physicochemical and

    E-Print Network [OSTI]

    Rohs, Remo

    , Biochemical, Environmental, Petroleum Engineering and Nantoechnology. CHEMICAL&MATERIALSSCIENCE CHE OVERVIEW of Science 131 units · Chemical Engineering (Petroleum) Bachelor of Science 136 units · Chemical Engineering38 Chemical engineers design, control and optimize large-scale chemical, physicochemical

  4. Engineering study for ISSTRS design concept

    SciTech Connect (OSTI)

    Hertzel, J.S.

    1997-01-31T23:59:59.000Z

    Los Alamos Technical Associates, Inc., is pleased to transmit the attached Conceptual Design Package for the Initial Single Shell Tank Retrieval System (ISSTRS), 90% Conceptual Design Review. The package includes the following: (1) ISSTRS Trade Studies: (a) Retrieval Facility Cooling Requirements; (b) Equipment Re-usability between Project W-320 and Tanks 241-C-103 and 241-C-1 05; (c) Sluice Line Options; and (d) Options for the Location of Tanks AX-103 and A-1 02 HVAC Equipment; (2) Drawings; (3) Risk Management Plan; (4) 0850 Interface Control Document; (5) Requirements Traceability Report; and (6) Project Design Specification.

  5. A system dynamics model for the strategic analysis of options for sourcing engineering design

    E-Print Network [OSTI]

    Ufongene, Charles Mmaduka

    2008-01-01T23:59:59.000Z

    EC (Engineering Change) is the natural by-product of the Engineering Design process. There are two types of EC: Revisions and Defects Correction. Revisions arise because Engineering Design is an iterative process, requiring ...

  6. Design of nanomanufacturing systems

    E-Print Network [OSTI]

    Slocum, Alexander Henry, Jr

    2010-01-01T23:59:59.000Z

    Over 100 years of manufacturing knowledge and experience are available to a design engineer when considering the integration of a machine tool enabling macro-scale processes (milling, turning, welding, water-jet cutting) ...

  7. Fusion Engineering and Design 81 (2006) 659664 Solid breeder test blanket module design and analysis

    E-Print Network [OSTI]

    Abdou, Mohamed

    2006-01-01T23:59:59.000Z

    Fusion Engineering and Design 81 (2006) 659­664 Solid breeder test blanket module design This paper presents the design and analysis for the US ITER solid breeder blanket test articles. Objectives of solid breeder blanket testing during the first phase of the ITER operation focus on exploration

  8. Fusion Engineering and Design 46 (1999) 177183 ITER reference breeding blanket design

    E-Print Network [OSTI]

    Raffray, A. René

    1999-01-01T23:59:59.000Z

    breeding blanket with a lithium ceramic as breeder material and beryllium as neutron multiplierFusion Engineering and Design 46 (1999) 177­183 ITER reference breeding blanket design M. Ferrari a The ITER reference breeding blanket design is water-cooled and is characterised by the use of the neutronic

  9. Deep Underground Science and Engineering Laboratory - Preliminary Design Report

    E-Print Network [OSTI]

    Kevin T. Lesko; Steven Acheson; Jose Alonso; Paul Bauer; Yuen-Dat Chan; William Chinowsky; Steve Dangermond; Jason A. Detwiler; Syd De Vries; Richard DiGennaro; Elizabeth Exter; Felix B. Fernandez; Elizabeth L. Freer; Murdock G. D. Gilchriese; Azriel Goldschmidt; Ben Grammann; William Griffing; Bill Harlan; Wick C. Haxton; Michael Headley; Jaret Heise; Zbigniew Hladysz; Dianna Jacobs; Michael Johnson; Richard Kadel; Robert Kaufman; Greg King; Robert Lanou; Alberto Lemut; Zoltan Ligeti; Steve Marks; Ryan D. Martin; John Matthesen; Brendan Matthew; Warren Matthews; Randall McConnell; William McElroy; Deborah Meyer; Margaret Norris; David Plate; Kem E. Robinson; William Roggenthen; Rohit Salve; Ben Sayler; John Scheetz; Jim Tarpinian; David Taylor; David Vardiman; Ron Wheeler; Joshua Willhite; James Yeck

    2011-08-03T23:59:59.000Z

    The DUSEL Project has produced the Preliminary Design of the Deep Underground Science and Engineering Laboratory (DUSEL) at the rehabilitated former Homestake mine in South Dakota. The Facility design calls for, on the surface, two new buildings - one a visitor and education center, the other an experiment assembly hall - and multiple repurposed existing buildings. To support underground research activities, the design includes two laboratory modules and additional spaces at a level 4,850 feet underground for physics, biology, engineering, and Earth science experiments. On the same level, the design includes a Department of Energy-shepherded Large Cavity supporting the Long Baseline Neutrino Experiment. At the 7,400-feet level, the design incorporates one laboratory module and additional spaces for physics and Earth science efforts. With input from some 25 science and engineering collaborations, the Project has designed critical experimental space and infrastructure needs, including space for a suite of multidisciplinary experiments in a laboratory whose projected life span is at least 30 years. From these experiments, a critical suite of experiments is outlined, whose construction will be funded along with the facility. The Facility design permits expansion and evolution, as may be driven by future science requirements, and enables participation by other agencies. The design leverages South Dakota's substantial investment in facility infrastructure, risk retirement, and operation of its Sanford Laboratory at Homestake. The Project is planning education and outreach programs, and has initiated efforts to establish regional partnerships with underserved populations - regional American Indian and rural populations.

  10. Faculty of Engineering Institute of Design, Robotics

    E-Print Network [OSTI]

    Berzins, M.

    of materials and systems including small-scale and full-size brake dynamometers · The University's Charterhouse materials, structures and optimisation techniques. The outcomes of this research is applied to automotive: Control & Dynamics, Design, Strengths of Materials. We have access to dedicated equipment including

  11. Robust Methods for Engineering Design Optimization

    E-Print Network [OSTI]

    Dennis, Brian

    Random Energy Lost Generation Hybrid Example · Optimization of turbine cascade (2-D) with hybrid GA for optimized blade Hybrid Algorithms · Use a combination of algorithms plus a switching strategy for searching #12;7 Flowchart of automatic switching among modules in a hybrid optimizer Design Variance 0 DFP GA NM

  12. Capturing the Impact of Fuel Price on Jet Aircraft Operating Costs with Engineering and Econometric Models

    E-Print Network [OSTI]

    Smirti Ryerson, Megan; Hansen, Mark

    2009-01-01T23:59:59.000Z

    with Engineering and Econometric Models Megan Smirti RyersonCosts with Engineering and Econometric Models Megan Smirtiforces. To this end, an econometric operating cost model (

  13. Helical Muon Beam Cooling Channel Engineering Design

    SciTech Connect (OSTI)

    Kashikhin, V.S.; Lopes, M.L.; Romanov, G.V.; Tartaglia, M.A.; Yonehara, K.; Yu, M.; Zlobin, A.V.; /Fermilab; Flanagan, G.; Johnson, R.P.; Kazakevich, G.M.; Marhauser, F.; /MUONS Inc., Batavia

    2012-05-01T23:59:59.000Z

    The Helical Cooling Channel (HCC), a novel technique for six-dimensional (6D) ionization cooling of muon beams, has shown considerable promise based on analytic and simulation studies. However, the implementation of this revolutionary method of muon cooling requires new techniques for the integration of hydrogen-pressurized, high-power RF cavities into the low-temperature superconducting magnets of the HCC. We present the progress toward a conceptual design for the integration of 805 MHz RF cavities into a 10 T Nb{sub 3}Sn based HCC test section. We include discussions on the pressure and thermal barriers needed within the cryostat to maintain operation of the magnet at 4.2 K while operating the RF and energy absorber at a higher temperature. Additionally, we include progress on the Nb{sub 3}Sn helical solenoid design.

  14. Improved Engine Design Concepts Using the Second Law of Thermodynamics

    SciTech Connect (OSTI)

    None

    2009-09-30T23:59:59.000Z

    This project was aimed at developing and using numerical tools which incorporate the second law of thermodynamics to better understand engine operation and particularly the combustion process. A major activity of this project was the continual enhancement and use of an existing engine cycle simulation to investigate a wide range of engine parameters and concepts. The major motivation of these investigations was to improve engine efficiency. These improvements were examined from both the first law and second law perspective. One of the most important aspects of this work was the identification of the combustion irreversibilities as functions of engine design and operating parameters. The combustion irreversibility may be quantified in a number of ways but one especially useful way is by determining the destruction of exergy (availability) during the combustion process. This destruction is the penalty due to converting the fuel exergy to thermal energy for producing work. The engine cycle simulation was used to examine the performance of an automotive (5.7 liter), V-8 spark-ignition engine. A base case was defined for operation at 1400 rpm, stoichiometric, MBT spark timing with a bmep of 325 kPa. For this condition, the destruction of exergy during the combustion process was 21.0%. Variations of many engine parameters (including speed, load, and spark timing) did not alter the level of destruction very much (with these variations, the exergy destruction was within the range of 20.5-21.5%). Also, the use of turbocharging or the use of an over-expanded engine design did not significantly change the exergy destruction. The exergy destruction during combustion was most affected by increased inlet oxygen concentration (which reduced the destruction due to the higher combustion temperatures) and by the use of cooled EGR (which increased the destruction). This work has demonstrated that, in general, the exergy destruction for conventional engines is fairly constant ({approx}21%) for a range of operating and design parameters. Further, to achieve high efficiency engines requires that the exergy be managed and not necessarily reduced. The overall thermodynamics is the final discriminator regarding high efficiency engines.

  15. CE 363 -TRANSPORTATION ENGINEERING AND PAVEMENT DESIGN Fall 2009 Course Syllabus

    E-Print Network [OSTI]

    Hickman, Mark

    1 CE 363 - TRANSPORTATION ENGINEERING AND PAVEMENT DESIGN Fall 2009 Course Syllabus Catalog (4) CDT performance characteristics, highway geometric and pavement design principles; traffic analysis of transportation engineering and pavement design. Specifically, students should understand the basic concepts

  16. Trivariate Simplex Splines for Inhomogeneous Solid Modeling in Engineering Design

    E-Print Network [OSTI]

    Qin, Hong

    Trivariate Simplex Splines for Inhomogeneous Solid Modeling in Engineering Design Jing Hua, Ying He of complicated geometry and topology. A modeled object is formulated with a trivariate simplex spline defined knots of trivariate simplex splines. We also develop a feature- sensitive fitting algorithm that can

  17. Proceedings of DETC'00 ASME 2000 Design Engineering Technical Conferences

    E-Print Network [OSTI]

    Saitou, Kazuhiro "Kazu"

    1 Proceedings of DETC'00 ASME 2000 Design Engineering Technical Conferences and Computers. Generally, these errors are handled by human experts or logic controllers. However, these controller codes. Another approach is using Programmable Logic Controller (PLC) codes, which are also manually coded, based

  18. Proceedings of DETC'98 1998 ASME Design Engineering Technical Conferences

    E-Print Network [OSTI]

    Papalambros, Panos

    Proceedings of DETC'98 1998 ASME Design Engineering Technical Conferences September 13-16, 1998 a thermodynamic and combustion simulation to model combustion, a computational fluid dynamics code to model by ASME #12;Expensive Analysis Inexpensive Analysis Optimizer RequestforAnalysis Results (a) Typical

  19. Proceedings of DETC2003 2003 ASME Design Engineering Technical Conferences

    E-Print Network [OSTI]

    Williams II, Robert L.

    1 Proceedings of DETC2003 2003 ASME Design Engineering Technical Conferences September 2-6, 2003 in parallel from ground-mounted string pots to the moving object of interest. Cartesian pose can be determined prototyping, robotics, and automated construction. The proposed real-time cable-based metrology system is less

  20. Design & Engineering Services SPEAKMAN HYBRID ROOFTOP UNIT PERFORMANCE

    E-Print Network [OSTI]

    California at Davis, University of

    Design & Engineering Services SPEAKMAN HYBRID ROOFTOP UNIT PERFORMANCE: WESTERN COOLING CHALLENGE, and the National Renewable Energy Laboratory (NREL) conducted the physical laboratory tests at their facility for their contribution of the Air20 Quattro HCRS2500 hybrid rooftop unit used for evaluation, and is grateful to the US

  1. Design & Engineering Services AIRMAX HYBRID ROOFTOP UNIT PERFORMANCE: WESTERN

    E-Print Network [OSTI]

    California at Davis, University of

    Design & Engineering Services AIRMAX HYBRID ROOFTOP UNIT PERFORMANCE: WESTERN COOLING CHALLENGE. and the National Renewable Energy Laboratory (NREL) conducted the physical laboratory tests at their facility for their contribution of the Air20 Quattro HCRS2500 hybrid rooftop unit used for evaluation, and is grateful to the US

  2. Proceedings of DETC'02 ASME 2002 Design Engineering Technical Conferences

    E-Print Network [OSTI]

    Lewis, Kemper E.

    Proceedings of DETC'02 ASME 2002 Design Engineering Technical Conferences and Computers graphical representations (pictures, graphs, etc.) of complex data. The enormous computing power readily of large data structures in print form. 1 ASME Member, Corresponding Author 1 Copyright ©2002 by ASME #12

  3. Electric utility engineer`s FGD manual -- Volume 1: FGD process design. Final report

    SciTech Connect (OSTI)

    NONE

    1996-03-04T23:59:59.000Z

    Part 1 of the Electric Utility Engineer`s Flue Gas Desulfurization (FGD) Manual emphasizes the chemical and physical processes that form the basis for design and operation of lime- and limestone-based FGD systems applied to coal- or oil-fired steam electric generating stations. The objectives of Part 1 are: to provide a description of the chemical and physical design basis for lime- and limestone-based wet FGD systems; to identify and discuss the various process design parameters and process options that must be considered in developing a specification for a new FGD system; and to provide utility engineers with process knowledge useful for operating and optimizing a lime- or limestone-based wet FGD system.

  4. Knowledge Network: An Information Repository with Services for Managing Concurrent Engineering Design

    E-Print Network [OSTI]

    Fox, Mark S.

    Knowledge Network: An Information Repository with Services for Managing Concurrent Engineering design engineers. The KAD system centers on a knowledge network that stores design knowledge and provides are constructing a Knowledge Aided Design (KAD) system for supporting concurrent engineering design and enhancing

  5. ICED'09/148 INTERNATIONAL CONFERENCE ON ENGINEERING DESIGN, ICED'09

    E-Print Network [OSTI]

    Papalambros, Panos

    derived from the diversity of disciplines that contribute to design, including engineering, economics with the usual engineering requirements. This article describes the basic ideas in constructing the designICED'09/148 INTERNATIONAL CONFERENCE ON ENGINEERING DESIGN, ICED'09 24 - 27 AUGUST 2009, STANFORD

  6. Accelerating Battery Design Using Computer-Aided Engineering Tools: Preprint

    SciTech Connect (OSTI)

    Pesaran, A.; Heon, G. H.; Smith, K.

    2011-01-01T23:59:59.000Z

    Computer-aided engineering (CAE) is a proven pathway, especially in the automotive industry, to improve performance by resolving the relevant physics in complex systems, shortening the product development design cycle, thus reducing cost, and providing an efficient way to evaluate parameters for robust designs. Academic models include the relevant physics details, but neglect engineering complexities. Industry models include the relevant macroscopic geometry and system conditions, but simplify the fundamental physics too much. Most of the CAE battery tools for in-house use are custom model codes and require expert users. There is a need to make these battery modeling and design tools more accessible to end users such as battery developers, pack integrators, and vehicle makers. Developing integrated and physics-based CAE battery tools can reduce the design, build, test, break, re-design, re-build, and re-test cycle and help lower costs. NREL has been involved in developing various models to predict the thermal and electrochemical performance of large-format cells and has used in commercial three-dimensional finite-element analysis and computational fluid dynamics to study battery pack thermal issues. These NREL cell and pack design tools can be integrated to help support the automotive industry and to accelerate battery design.

  7. Repository Surface Design Engineering Files Report Rev 00 ICN 1

    SciTech Connect (OSTI)

    DOE

    2001-05-08T23:59:59.000Z

    The objective of the Repository Surface Design Engineering Files Report Supplement [herein known as the Engineering Files (EF)] is to provide the surface design data needed by the Environmental Impact Statement (EIS) contractor to prepare the EIS and evaluate options and alternatives. This document is based on the Repository Surface Design Engineering Files Report, Revision 03 (CRWMS M and O 1999f) (EF Rev 03). Where facility and system designs have been changed for the Site Recommendation (SR) effort they are described in this report. EIS information provided in this report includes the following: (1) Description of program phases; there are no changes that impact this report. (2) A description of the major design requirements and assumptions that drive the surface facilities reference design is provided herein (Section 2.2), including the surface design resulting from recommendations regarding Enhanced Design Alternative (EDA) II, as discussed in the License Application Design Section Report (CRWMS M and O 1999d), and changes to the waste stream. See Section 2, Table 2-2, for the SR waste stream. (3) The major design requirements and assumptions that drive the surface facilities reference design are by reference to EF Rev 03; there are no changes that impact this report. (4) Description of the reference design concept and existing site conditions is by reference to EF Rev 03 (including Table 4-1, which is not included in this supplement); there are no changes that impact this report. (5) Description of alternative design cases is by reference to EF Rev 03; there are no changes that impact this report. (6) Description of optional inventory modules is by reference to EF Rev 03; there are no changes that impact this report. (7) Tabular summary level engineering values (i.e., staffing, wastes, emissions, resources, and land use) for the reference design and the alternative design cases that address construction, emplacement operations, caretaker operations, and closure; changes, if any, are indicated on appropriate tables. (8) A description of a design concept for the complete retrieval and storage of waste packages, and summary-level engineering quantities for the construction and operation of this concept, is included as Attachment I; there are no changes that impact this report. (9) The concept for a 10,000 metric tons heavy metal (MTHM) Waste Staging Facility (Attachment II) has been deleted. The addition of four spent fuel assembly (SFA) staging pools in the Waste Handling Building (WHB) is described herein. (10) Description of a design concept for an on-site Cask Maintenance Facility to provide for shipping cask repair and recertification (Attachment III) is by reference to EF Rev 03; there are no changes that impact this report. (11) Figures that have changed for the SR effort are included in Attachment IV. Unchanged figures are referenced from EF Rev 03. (12) A preliminary design concept for dry vault inventory of commercial spent nuclear fuel to support thermal blending of spent fuel assemblies in waste packages has been added as Attachment V for this supplement.

  8. Thermal and Mechanical Design Aspects of the LIFE Engine

    SciTech Connect (OSTI)

    Abbott, R P; Gerhard, M A; Latkowski, J F; Kramer, K J; Morris, K R; Peterson, P F; Seifried, J E

    2008-10-25T23:59:59.000Z

    The Laser Inertial confinement fusion - Fission Energy (LIFE) engine encompasses the components of a LIFE power plant responsible for converting the thermal energy of fusion and fission reactions into electricity. The design and integration of these components must satisfy a challenging set of requirements driven by nuclear, thermal, geometric, structural, and materials considerations. This paper details a self-consistent configuration for the LIFE engine along with the methods and technologies selected to meet these stringent requirements. Included is discussion of plant layout, coolant flow dynamics, fuel temperatures, expected structural stresses, power cycle efficiencies, and first wall survival threats. Further research and to understand and resolve outstanding issues is also outlined.

  9. FURTHER DEVELOPMENTS IN THE DESIGN OF A FREE-PISTON STIRLING ENGINE

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    NT-87-03-3 FURTHER DEVELOPMENTS IN THE DESIGN OF A FREE-PISTON STIRLING ENGINE HEAT PUMP (1986/1987), the development of an improved Stirling engine driver for the Free-Piston Stirling Engine

  10. ELSEVIER Nuclear Engineering and Design 146 (1994) 337-348 Engineering

    E-Print Network [OSTI]

    1994-01-01T23:59:59.000Z

    effort has been focused on analyzing the hydrodynamic phenomena which follow after the fusion energyL / Nuclear Engineering and Design 146 (1994) 337-348 columnar array of cylinders. The model-section, and used steady-state drag coefficients. Although radiation heat transfer was considered in the calculation

  11. Proceedings of the ASME 2013 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-Print Network [OSTI]

    Demaine, Erik

    Proceedings of the ASME 2013 International Design Engineering Technical Conferences & Computers Huff- man codes, and best known in origami as a pioneer of curved- crease folding. But during his early while 1 Copyright c 2013 by ASME #12;he was a professor at University of California, Santa Cruz

  12. Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-Print Network [OSTI]

    Dollar, Aaron M.

    Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers in. Specifically, we show that in conditions when the actuator position is fixed, hands with single-acting mechanisms exhibit a bimodal behavior in contrast to hands with double-acting mechanisms that exhibit

  13. Numerical study on optimal Stirling engine regenerator matrix designs taking into account the effects of matrix

    E-Print Network [OSTI]

    Numerical study on optimal Stirling engine regenerator matrix designs taking into account matrix design that improves the efficiency of a Stirling engine has been developed in a numerical study of the existing SM5 Stirling engine. A new, detailed, one-dimensional Stirling engine model that delivers results

  14. Fusion Engineering and Design xxx (2006) xxxxxx Overview of fusion nuclear technology in the US

    E-Print Network [OSTI]

    Raffray, A. René

    2006-01-01T23:59:59.000Z

    Fusion Engineering and Design xxx (2006) xxx­xxx Overview of fusion nuclear technology in the US N.B. Morley et al. / Fusion Engineering and Design xxx (2006) xxx­xxx · firstwall

  15. Progress in conceptual design of a tokamak engineering test breeder

    SciTech Connect (OSTI)

    Huang, J.; Sheng, G.

    1993-12-31T23:59:59.000Z

    A tokamak engineering test breeder, TETB, was proposed in 1988. It has a liquid lithium self-cooled blanket of the fast fission type. Since 1989, revisions have been made for an improved version, the TETB-II. A fission suppressed blanket was adopted and the lithium cooling pattern changed, resulting in a much lower MHD pressure drop. The emphasis of this report is on the component design and analysis using computer codes.

  16. Proceedings of DETC 2005 2005 ASME Design Engineering Technical Conferences

    E-Print Network [OSTI]

    Rand, Richard H.

    Proceedings of DETC 2005 2005 ASME Design Engineering Technical Conferences September 24-28, 2005 is parametrically forced with frequencies 1 and . 1 Copyright c 2005 by ASME Proceedings of IDETC/CIE 2005 ASME 2005 + 2 2 x + 2 2 x 2 + 2 2 2 x + O( 3 ) (5) We expand x, , and as a power series of : x = x0 + x1 + 2

  17. Nuclear reactor engineering: Reactor design basics. Fourth edition, Volume One

    SciTech Connect (OSTI)

    Glasstone, S.; Sesonske, A.

    1994-12-31T23:59:59.000Z

    This new edition of this classic reference combines broad yet in-depth coverage of nuclear engineering principles with practical descriptions of their application in design and operation of nuclear power plants. Extensively updated, the fourth edition includes new material on reactor safety and risk analysis, regulation, fuel management, waste management, and operational aspects of nuclear power. This volume contains the following: energy from nuclear fission; nuclear reactions and radiations; neutron transport; nuclear design basics; nuclear reactor kinetics and control; radiation protection and shielding; and reactor materials.

  18. Proceedings of 2008 NSF Engineering Research and Innovation Conference, Knoxville, Tennessee Grant # CMMI-0423485 Multiscale Design of Functionally Graded Materials

    E-Print Network [OSTI]

    Vel, Senthil

    Proceedings of 2008 NSF Engineering Research and Innovation Conference, Knoxville, Tennessee Grant: Engineering Design #12;Proceedings of 2008 NSF Engineering Research and Innovation Conference, Knoxville

  19. ME 302 Introduction to Engineering Design and Graphics ABET EC2000 syllabus

    E-Print Network [OSTI]

    Ben-Yakar, Adela

    ME 302 ­ Introduction to Engineering Design and Graphics Page 1 ABET EC2000 syllabus ME 302 ­ Introduction to Engineering Design and Graphics Spring 2010 Required or Elective: Required 2008-2010 Catalog Data: Graphics and modeling fundamentals for engineering design: freehand sketching, computer modeling

  20. Nuclear Engineering and Design/Fusion 2 119851 1 North-Holland, Amsterdam

    E-Print Network [OSTI]

    Ghoniem, Nasr M.

    Nuclear Engineering and Design/Fusion 2 119851 1 North-Holland, Amsterdam PREFACE This special issue of Nuclear Engineering and Design/Fusion is dedicated to filling a gap that has traditionally existed between materials scientists and design engineers in the field of fusion energy. The fundamental

  1. 2/2&3 January -August 2001 9 Baseball Stadium Design: Teaching Engineering

    E-Print Network [OSTI]

    Newell, James A.

    the design process (~2 weeks), fun- damentals of engineering economics (~6 weeks) and basic statistics (12/2&3 January - August 2001 9 Baseball Stadium Design: Teaching Engineering Economics and Technical of Engineering. During the past two years, a very successful Sophomore Clinic module on economic design of a base

  2. Aditya Soni, Department of Engineering Design, Indian Institute of Technology Madras, Chennai-600036, adityasoni1@gmail.com

    E-Print Network [OSTI]

    Ramanathan, M.

    1 ________________ Aditya Soni, Department of Engineering Design, Indian Institute of Technology Madras, Chennai-600036, adityasoni1@gmail.com Ramanathan Muthuganapathy, Department of Engineering Design, Department of Engineering Design, Indian Institute of Technology Madras, Chennai-600036, India, ssndipan

  3. Fusion Engineering and Design 38 (1997) 87113 Configuration and engineering design of the ARIES-RS

    E-Print Network [OSTI]

    California at San Diego, University of

    1997-01-01T23:59:59.000Z

    appears to offer the best combination of good economic performance and physics credibility for a tokamak operation. This was adopted as the only practical means to meet availability goals. Use of an electrically, this is a prelimi- nary design concept which can be used to guide R&D programs to further improve the product

  4. Engineering design of the National Spherical Torus Experiment

    SciTech Connect (OSTI)

    C. Neumeyer; P. Heitzenroeder; J. Spitzer, J. Chrzanowski; et al

    2000-05-11T23:59:59.000Z

    NSTX is a proof-of-principle experiment aimed at exploring the physics of the ``spherical torus'' (ST) configuration, which is predicted to exhibit more efficient magnetic confinement than conventional large aspect ratio tokamaks, amongst other advantages. The low aspect ratio (R/a, typically 1.2--2 in ST designs compared to 4--5 in conventional tokamaks) decreases the available cross sectional area through the center of the torus for toroidal and poloidal field coil conductors, vacuum vessel wall, plasma facing components, etc., thus increasing the need to deploy all components within the so-called ``center stack'' in the most efficient manner possible. Several unique design features have been developed for the NSTX center stack, and careful engineering of this region of the machine, utilizing materials up to their engineering allowables, has been key to meeting the desired objectives. The design and construction of the machine has been accomplished in a rapid and cost effective manner thanks to the availability of extensive facilities, a strong experience base from the TFTR era, and good cooperation between institutions.

  5. Beamed Core Antimatter Propulsion: Engine Design and Optimization

    E-Print Network [OSTI]

    Ronan Keane; Wei-Ming Zhang

    2012-05-16T23:59:59.000Z

    A conceptual design for beamed core antimatter propulsion is reported, where electrically charged annihilation products directly generate thrust after being deflected and collimated by a magnetic nozzle. Simulations were carried out using the Geant4 (Geometry and tracking) software toolkit released by the CERN accelerator laboratory for Monte Carlo simulation of the interaction of particles with matter and fields. Geant permits a more sophisticated and comprehensive design and optimization of antimatter engines than the software environment for simulations reported by prior researchers. The main finding is that effective exhaust speeds Ve ~ 0.69c (where c is the speed of light) are feasible for charged pions in beamed core propulsion, a major improvement over the Ve ~ 0.33c estimate based on prior simulations. The improvement resulted from optimization of the geometry and the field configuration of the magnetic nozzle. Moreover, this improved performance is realized using a magnetic field on the order of 10 T at the location of its highest magnitude. Such a field could be produced with today's technology, whereas prior nozzle designs anticipated and required major advances in this area. The paper also briefly reviews prospects for production of the fuel needed for a beamed core engine.

  6. Collaborative Virtual Environments for Ergonomics: Embedding the Design Engineer Role in the Loop

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    D RA FT Collaborative Virtual Environments for Ergonomics: Embedding the Design Engineer Role and duties of a design engineer involved in a collaborative ergonomic design session sup- ported by a 3D to obtain efficient collaborative ergonomic design sessions. Then, after a short definition of the role

  7. China Electronic Engineering Design Institute CEEDI | Open Energy

    Open Energy Info (EERE)

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

  8. In Chedmail, P. (Ed) : Integrated design and manufacturing in mechanical engineering. Kluwer acdemic Press, 2002.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    DÉTIENNE, ELISABETH LAVIGNE CONFRONTATION OF VIEWPOINTS IN A CONCURRENT ENGINEERING PROCESS Abstract. We by working in Concurrent Engineering (Darses, 1997). Aerospatiale Matra Airbus has conducted the re-engineering of its design processes in a Concurrent Engineering procedure, in order to better master costs, schedules

  9. Fusion Engineering and Design 38 (1997) 159188 ARIES-RS magnet systems

    E-Print Network [OSTI]

    1997-01-01T23:59:59.000Z

    Fusion Engineering and Design 38 (1997) 159­188 ARIES-RS magnet systems L. Bromberg a, *, P. Titus and engineering data bases. In contrast with ARIES-I [1], with a high magnetic field and aggressive engineering. The engineering approach to evaluate the magnet issues for ARIES-RS is simi- lar to that of ARIES-II and ARIES

  10. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-Print Network [OSTI]

    Williams II, Robert L.

    -dof linkages, cams, and gear trains, such as the Ross-yoke Stirling engine mechanism shown in Figure 1 trains. #12;2 Copyright © 2010 by ASME Figure 1. Ross-Yoke Stirling Engine Mechanism www.ent.ohiou.edu/~urieli/stirling/engines1 Copyright © 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical

  11. Advanced Engineering Informatics, 2004 (To appear) Deployment of an Ontological Framework of Functional Design Knowledge

    E-Print Network [OSTI]

    Mizoguchi, Riichiro

    design knowledge on production systems since May, 2001. An empirical evaluation by Sumitomo's engineers The importance of knowledge sharing among designers and engineers has been widely recognized in knowledgeAdvanced Engineering Informatics, 2004 (To appear) - 1 - Deployment of an Ontological Framework

  12. Electrical Engineering Group Digital, analog, power, ASIC, FPGA, and embedded systems design

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Electrical Engineering Group Digital, analog, power, ASIC, FPGA, and embedded systems design The Electrical Engineering (EE) Group at LASP has a broad range of technical expertise in the design, development, and test of space flight electrical systems. Engineers work closely with mission science, systems

  13. Training engineering: A parametric approach to computer-based training design

    SciTech Connect (OSTI)

    Trainor, M.S.; Andrews, A.E.

    1987-01-01T23:59:59.000Z

    Training engineering, a new model for computer-based training (CBT), has been devised and put into use by the Cognitive Engineering Design and Research Team (CEDAR) at Los Alamos National Laboratory. Training engineering is the application of scientific principles to the design, construction, and operation of efficient training systems. Such an approach is necessary because of the level of complexity CBT design and development has reached with the new advanced technologies. Instructional designers are under pressure to implement these new technologies more rapidly than has been required in the past, yet few models have emerged to aid designers in this process. Training engineering is such a model. It provides techniques for design and development that are derived from successful engineering techniques. This paper begins with a discussion of the engineering approach and then applies this approach to training. Examples from prototype CBT projects at Los Alamos are used throughout to illustrate the training engineering concept. 8 refs.

  14. Chamber Design for the Laser Inertial Fusion Energy (LIFE) Engine

    SciTech Connect (OSTI)

    Latkowski, J F; Abbott, R P; Aceves, S; Anklam, T; Badders, D; Cook, A W; DeMuth, J; Divol, L; El-Dasher, B; Farmer, J C; Flowers, D; Fratoni, M; ONeil, R G; Heltemes, T; Kane, J; Kramer, K J; Kramer, R; Lafuente, A; Loosmore, G A; Morris, K R; Moses, G A; Olson, B; Pantano, C; Reyes, S; Rhodes, M; Roe, K; Sawicki, R; Scott, H; Spaeth, M; Tabak, M; Wilks, S

    2010-11-30T23:59:59.000Z

    The Laser Inertial Fusion Energy (LIFE) concept is being designed to operate as either a pure fusion or hybrid fusion-fission system. The present work focuses on the pure fusion option. A key component of a LIFE engine is the fusion chamber subsystem. It must absorb the fusion energy, produce fusion fuel to replace that burned in previous targets, and enable both target and laser beam transport to the ignition point. The chamber system also must mitigate target emissions, including ions, x-rays and neutrons and reset itself to enable operation at 10-15 Hz. Finally, the chamber must offer a high level of availability, which implies both a reasonable lifetime and the ability to rapidly replace damaged components. An integrated design that meets all of these requirements is described herein.

  15. Engineering Design of a Multipurpose X-band Accelerating Structure

    E-Print Network [OSTI]

    Gudkov, Dmitry; Samoshkin, Alexander; Zennaro, Riccardo; Dehler, Micha; Raguin, Jean-Yves

    2010-01-01T23:59:59.000Z

    Both FEL projects, SwissFEL and Fermi-Elettra each require an X-band RF accelerating structure for optimal bunch compression at the respective injectors. As the CLIC project is pursuing a program for producing and testing the X-band high-gradient RF structures, a collaboration between PSI, Elettra and CERN has been established to build a multipurpose X-band accelerating structure. This paper focuses on its engineering design, which is based on the disked cells jointed together by diffusion bonding. Vacuum brazing and laser beam welding is used for auxiliary components. The accelerating structure consists of two coupler subassemblies, 73 disks and includes a wakefield monitor and diagnostic waveguides. The engineering study includes the external cooling system, consisting of two parallel cooling circuits and an RF tuning system, which allows phase advance tuning of the cell by deforming the outer wall. The engineering solution for the installation and sealing of the wake field monitor feed-through devices that...

  16. Opportunities and Threats of Green Building Design for ABC Engineers, Kansas City

    E-Print Network [OSTI]

    Wikoff, Brandon D.

    2008-12-19T23:59:59.000Z

    estate expert, Charles Lockwood. (Yudelson 2008, 27). The ‘Green’ building revolution has presented a unique opportunity for Consulting Engineering firms specializing in mechanical, electrical, and plumbing (MEP) design, such as ABC Engineers, to capture...

  17. Designed ecosystem services: application of ecological principles in wastewater treatment engineering

    E-Print Network [OSTI]

    Graham, David W.; Smith, Val H.

    2004-05-01T23:59:59.000Z

    applications as well. Wastewater engineers should use the fundamentals of ecological theory to help guide future system design and ecologists should view engineered biosystems as valuable new platforms for ecological research. Front Ecol Environ 2004; 2(4): 199...

  18. Designed ecosystem services: application of ecological principles in wastewater treatment engineering

    E-Print Network [OSTI]

    Graham, David W.; Smith, Val H.

    2004-01-01T23:59:59.000Z

    applications as well. Wastewater engineers should use the fundamentals of ecological theory to help guide future system design and ecologists should view engineered biosystems as valuable new platforms for ecological research. Front Ecol Environ 2004; 2(4): 199...

  19. The evolution and evaluation of an interactive engineering design teaching tool : MIT's EDICS

    E-Print Network [OSTI]

    Jimenez, Craig Edward

    2006-01-01T23:59:59.000Z

    For this thesis, I refined and tested a computer-based engineering teaching tool called EDICS. EDICS (Engineering Design Instructional Computer Program) has proven to be a fun and intriguing means of conveying a wide variety ...

  20. Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical, and electronic

    E-Print Network [OSTI]

    Rohs, Remo

    20 Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical Engineering students conduct extensive basic and applied research within and crossing usual disciplinary vehicle aerodynamics, combustion, robotics, heat transfer and nonlinear dynamics. In addition, recent

  1. Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical, and

    E-Print Network [OSTI]

    Rohs, Remo

    20 Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical Engineering students conduct extensive basic and applied research within and crossing usual disciplinary vehicle aerodynamics, combustion, robotics, heat transfer and nonlinear dynamics. In addition, recent

  2. DESIGN CRITIQUE INSIDE A MULTI-PLAYER GAME ENGINE Jules Moloney

    E-Print Network [OSTI]

    Amor, Robert

    critique process, used to provide expert feedback on a building design concept to students in architectureDESIGN CRITIQUE INSIDE A MULTI-PLAYER GAME ENGINE Jules Moloney School of Architecture, University@cs.auckland.ac.nz Jay Furness and Benjamin Moores School of Engineering, University of Auckland SUMMARY The design

  3. Fusion Engineering and Design 80 (2006) 139160 ARIES-AT magnet systems

    E-Print Network [OSTI]

    California at San Diego, University of

    2006-01-01T23:59:59.000Z

    Fusion Engineering and Design 80 (2006) 139­160 ARIES-AT magnet systems F. Dahlgrenb,, T. Brownb, P the physics and the engineering are more aggressive. The design of the toroidal field magnet is slightly less Available online 21 October 2005 Abstract This report presents a conceptual design of the magnet systems

  4. asme design engineering: Topics by E-print Network

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

    Fluids Engineering Summer Meeting and 8th International Conference1 Copyright 2010 by ASME Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting...

  5. Parameter Study of the LIFE Engine Nuclear Design

    SciTech Connect (OSTI)

    Kramer, K J; Meier, W R; Latkowski, J F; Abbott, R P

    2009-07-10T23:59:59.000Z

    LLNL is developing the nuclear fusion based Laser Inertial Fusion Energy (LIFE) power plant concept. The baseline design uses a depleted uranium (DU) fission fuel blanket with a flowing molten salt coolant (flibe) that also breeds the tritium needed to sustain the fusion energy source. Indirect drive targets, similar to those that will be demonstrated on the National Ignition Facility (NIF), are ignited at {approx}13 Hz providing a 500 MW fusion source. The DU is in the form of a uranium oxycarbide kernel in modified TRISO-like fuel particles distributed in a carbon matrix forming 2-cm-diameter pebbles. The thermal power is held at 2000 MW by continuously varying the 6Li enrichment in the coolants. There are many options to be considered in the engine design including target yield, U-to-C ratio in the fuel, fission blanket thickness, etc. Here we report results of design variations and compare them in terms of various figures of merit such as time to reach a desired burnup, full-power years of operation, time and maximum burnup at power ramp down and the overall balance of plant utilization.

  6. Proceedings of DETC'03 ASME 2003 Design Engineering Technical Conferences and

    E-Print Network [OSTI]

    Proceedings of DETC'03 ASME 2003 Design Engineering Technical Conferences and Computers. However, users still must write code to integrate application functionality. Examples of middleware

  7. Modified shielding jet model for twin-jet shielding analysis

    E-Print Network [OSTI]

    Gilbride, Jennifer Frances

    1983-01-01T23:59:59.000Z

    MODIFIED SHIELDING JET MODEL FOR TWIN-JET SHIELDING ANALYSIS A Thesis by JENNIFER FRANCES GILBRIDE Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1983 Major Subject: Mechanical Engineering MODIFIED SHIELDING JET MODEL FOR TWIN-JET SHIELDING ANALYSIS A Thesis by JENNIFER FRANCES GILBRIDE Approved as to stvle and content by: 'Carl H. Gerhold (Chairman of Committee) J. Craag Dutton...

  8. Fusion Engineering and Design 82 (2007) 22172225 Integrated thermo-fluid analysis towards helium flow

    E-Print Network [OSTI]

    Abdou, Mohamed

    2007-01-01T23:59:59.000Z

    flow path design for an ITER solid breeder blanket module A. Yinga,, M. Narulaa, R. Hunta, M. Abdoua, Y breeder blanket design. Supplying all s the ITER test blanket module (TBM) warrants the need of extensive computer aided engineering (CAE

  9. Small-Scale Industrial Cogeneration: Design Using Reciprocating Engines and Absorption Chillers 

    E-Print Network [OSTI]

    Wagner, J. R.

    1985-01-01T23:59:59.000Z

    This paper describes a packaged cogeneration system designed for light industrial applications (i.e., situations where a user wants a maximum of 1 MW of cogenerated electricity). The design employs reciprocating engines fueled with natural gas...

  10. Socio-cognitive analysis of engineering systems design : shared knowledge, process, and product

    E-Print Network [OSTI]

    Avnet, Mark Sean

    2009-01-01T23:59:59.000Z

    This research is based on the well-known but seldom stated premise that the design of complex engineered systems is done by people -- each with their own knowledge, thoughts, and views about the system being designed. To ...

  11. USING UML IN A NON-SOFTWARE DESIGN TASK: CREATING AN ELECTRONIC SOFTWARE ENGINEERING HANDBOOK

    E-Print Network [OSTI]

    Dascalu, Sergiu

    USING UML IN A NON-SOFTWARE DESIGN TASK: CREATING AN ELECTRONIC SOFTWARE ENGINEERING HANDBOOK to future developments are also presented in the paper. Keywords: software engineering, electronic handbook & Engineering University of Nevada, Reno, USA {dascalus, muhanna, sreed}@cse.unr.edu 2 Department of Computer

  12. A Case-Based Conceptual Design Information Server for Concurrent Engineering1

    E-Print Network [OSTI]

    Agogino, Alice M.

    1 A Case-Based Conceptual Design Information Server for Concurrent Engineering1 William H. Wood III been focused on the functionality of an artifact to be provided to a customer. Concurrent engineering i n concurrent engineering are indexed to provide access through multiple interfaces, allowing

  13. Effectiveness of Integration of System-Level Optimization in Concurrent Engineering for Rocket Design

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Effectiveness of Integration of System-Level Optimization in Concurrent Engineering for Rocket in Concurrent Engineering for Rocket Design by Brian Kenichi Bairstow Submitted to the Department of Aeronautics in Aeronautics and Astronautics Abstract Integrated concurrent engineering is a method for rapid conceptual

  14. Proceedings of IDETC/CIE 2006 ASME 2006 International Design Engineering Technical Conferences &

    E-Print Network [OSTI]

    Lamancusa, John S.

    material has been added to the Mechanical Engineering curriculum. Concurrent with mandated reductionsProceedings of IDETC/CIE 2006 ASME 2006 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference September 10-13, 2006, Philadelphia, Pennsylvania, USA 1

  15. DESign AnD conStruction College of Engineering and Mines

    E-Print Network [OSTI]

    Hartman, Chris

    DESign AnD conStruction MAnAgEMEnt College of Engineering and Mines Department of Civil and continues to engage industry as a partner in the program. Engineers and other construction professionals in engineering and at least two years' construction management experience; or a four-year non-ABET college degree

  16. ME 366J Mechanical Engineering Design Methodology ABET EC2000 syllabus

    E-Print Network [OSTI]

    Ben-Yakar, Adela

    of the basic education requirement in writing. Textbook(s): Product Design: Techniques in Reverse Engineering to the profession. h, j 10. Awareness of contemporary issues in engineering practice, including economic, social that graduates have the ability to: A. Apply principles of engineering, basic science, and mathematics

  17. Some investigations in design of low cost variable compression ratio two stroke petrol engine

    E-Print Network [OSTI]

    Srinivas, A; rao, P Venkateswar; Reddy, M Penchal

    2012-01-01T23:59:59.000Z

    Historically two stroke engine petrol engines find wide applications in construction of two wheelers worldwide, however due to stringent environmental laws enforced universally; these engines are fading in numbers. In spite of the tight norms, internationally these engines are still used in agriculture, gensets etc. Several designs of variable compression ratio two stroke engines are commercially available for analysis purpose. In this present investigation a novel method of changing the compression ratio is proposed, applied, studied and analyzed. The clearance volume of the engine is altered by introducing a metal plug into the combustion chamber. This modification permitted to have four different values of clearance value keeping in view of the studies required the work is brought out as two sections. The first part deals with the design, modification, engine fabrication and testing at different compression ratios for the study of performance of the engine. The second part deals with the combustion in engi...

  18. Design and Experimental Implementation of an Electromagnetic Engine Valve Drive

    E-Print Network [OSTI]

    Parlikar, T.A.

    In conventional internal combustion engines, engine valve displacements are fixed relative to crankshaft position. If these valves were actuated as a variable function of crankshaft angle, significant improvements in fuel ...

  19. Water as a lubricant for Stirling air engines: design considerations and operating experience

    SciTech Connect (OSTI)

    Fauvel, O.R.; van Benthem, J.; Walker, G.

    1983-08-01T23:59:59.000Z

    Air is favoured as the working fluid for large, slow-running Stirling engines. Lubricating oil entering the working space could combine with compressed, heated air to form a mixture capable of spontaneous combustion. To preclude this possibility, water may be used as the lubricant in Stirling air engines. This paper reviews the lubrication requirements of Stirling air engines and the potential of water to fulfil these requirements. Some bearing and seal materials suitable for water-lubricated Stirling engines are reviewed in terms of a design case study for a 20 kW water lubricated Ringbom-Stirling air engine. Early operating experience with this engine is reported.

  20. Data mining in an engineering design environment: OR applications from graph matching1

    E-Print Network [OSTI]

    Nagi, Rakesh

    1 Data mining in an engineering design environment: OR applications from graph matching1 Carol J York 14623 Abstract Data mining has been making inroads into the engineering design environment ­ an area that generates large amounts of heterogeneous data for which suitable mining methods

  1. FUSION-3792; No.of Pages15 Fusion Engineering and Design xxx (2006) xxxxxx

    E-Print Network [OSTI]

    Raffray, A. René

    2006-01-01T23:59:59.000Z

    FUSION-3792; No.of Pages15 Fusion Engineering and Design xxx (2006) xxx­xxx Recent progress.07.087 #12;FUSION-3792; No.of Pages15 2 F. Najmabadi, A.R. Raffray / Fusion Engineering and Design xxx (2006) xxx­xxx of any stellarator configuration represents a large number of trade-offs among physics

  2. Nuclear Engineering and Design 241 (2011) 36973706 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Demazière, Christophe

    Nuclear Engineering and Design 241 (2011) 3697­3706 Contents lists available at ScienceDirect Nuclear Engineering and Design journal homepage: www.elsevier.com/locate/nucengdes Uncertainty-Solisa,b, , Christian Ekbergb , Christophe Demazierea , Arvid �degård Jensenb , Ulf Bredoltc a Department of Nuclear

  3. Proceedings of DETC'03 ASME 2003 Design Engineering Technical Conferences and

    E-Print Network [OSTI]

    Papalambros, Panos

    Proceedings of DETC'03 ASME 2003 Design Engineering Technical Conferences and Chicago, Illinois C cost CH powertrain hybridization cost per unit Cp cost of unit production D diesel fuel price D of targets 1 Copyright © 2003 by ASME Proceedings of DETC'03 ASME 2003 Design Engineering Technical

  4. An Evolutionary Algorithm to design Diesel Engines T. Donateo, D. Laforgia

    E-Print Network [OSTI]

    Coello, Carlos A. Coello

    An Evolutionary Algorithm to design Diesel Engines T. Donateo, D. Laforgia CREA, Research Center silvia.mocavero@unile.it Abstract - An evolutionary algorithm has been developed for the design of diesel to be achieved. A typical case is the contemporary reduction of soot and NOx emissions in a diesel engine. All

  5. A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System

    E-Print Network [OSTI]

    California at Berkeley, University of

    A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System Callaway Spring 2011 #12;Abstract A Better Steam Engine: Designing a Distributed Concentrating Solar a leading choice for DCS-CHP systems, if operation on steam is successful and reliability issues can

  6. Proceedings of IDETC/CIE 2005 ASME 2005 International Design Engineering Technical Conferences

    E-Print Network [OSTI]

    of the system. Rather, such systems exhibit branch- specific nonlinearities which, when collectively analyzedProceedings of IDETC/CIE 2005 ASME 2005 International Design Engineering Technical Conferences Proceedings of IDETC/CIE 2005 ASME 2005 International Design Engineering Technical Conferences & Computers

  7. Ushering in a New Era of Intelligent Engine Design

    E-Print Network [OSTI]

    Kemner, Ken

    for Internal Combustion Engines (PreSICE) workshop report (March 3, 2011). The workshop was attended by more and expensive. The U.S. Department of Energy's Predictive Simulation for Internal Combustion Engines (Pre. Improving the fuel efficiency of internal combustion engines is criticalto reducing U.S. dependence

  8. Principles of Aristotle’s Poiesis as a Foundation for Human-Centered Engineering Design

    E-Print Network [OSTI]

    Montgomery, Justin Bruce

    2013-02-27T23:59:59.000Z

    PRINCIPLES OF ARISTOTLE?S POIESIS AS A FOUNDATION FOR HUMAN-CENTERED ENGINEERING DESIGN An Undergraduate Research Scholars Thesis by JUSTIN B. MONTGOMERY Submitted to Honors and Undergraduate Research Texas A&M University in partial... ................................................................................................................................... 28 2 ABSTRACT Aristotle?s Poiesis as a Conceptual Framework for Uniting Human-Centered Design with Traditional Engineering Methods. (May 2013) Justin B. Montgomery Department of Mechanical Engineering Texas A&M University...

  9. Off-design performance characteristics of a twin shaft gas turbine engine with regeneration

    E-Print Network [OSTI]

    Leckie, Todd Stewart

    1984-01-01T23:59:59.000Z

    OFF-DESIGN PERFORMANCE CHARACTERISTICS OF A TWIN SHAFT GAS TURBINE ENGINE WITH RECTION A 'Ihesis TODD STEWART LECKIE Submitted to the Graduate College Texas ABM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1984 Major Subject: Mechanical Engineering OFF-DESIGN PERFORMANCE CHARACTERISTICS OF A TWIN SHAFT GAS TURBINE ENGINE WITH REGENERATION A Thesis by Approved as to style and content by: er E. J 'ns rrman of Corrmittee) Je- 'n Han...

  10. INTERNATIONAL CONFERENCE ON ENGINEERING DESIGN ICED 03 STOCKHOLM, AUGUST 19-21, 2003

    E-Print Network [OSTI]

    Agogino, Alice M.

    teams, product design lifecycle, latent semantic analysis, coherence 1 Introduction Engineering design-world context in which the design concepts evolve in the product design lifecycle. They reflect the conflicting artefact. They convey the value the product will bring to the people who will use it. They capture the real

  11. Design and Construction of a Fast Ion Loss Faraday Cup Array Diagnostic for JET

    SciTech Connect (OSTI)

    D.S. Darrow; S. Bauumel; F.E. Cecil; V. Kiptily; R. Ellis; L. Pedrick; A. Werner

    2004-04-26T23:59:59.000Z

    A thin foil Faraday cup array is being built to measure the loss of 3.5 MeV alpha particles and MeV ion cyclotron heating (ICH) tail ions on JET. It will consist of nine detectors spread over five different poloidal locations and three radial positions. They will measure the poloidal distribution and radial scrape off of the losses. The detectors will be comprised of four layers of thin (2.5 micron) Ni foil, giving some resolution of the lost particle energy distribution as different ranges of energies will stop in different layers of the detector. One detector will utilize eight thinner (1.0 micron) foils to obtain a better resolved energy distribution. These detectors will accept particles incident up to 45{sup o} from the normal to the foils.

  12. Consideration of air jet angle in open surface tank push-pull ventilation system design

    E-Print Network [OSTI]

    Chan, Wai-Hung David

    1983-01-01T23:59:59.000Z

    Amount, g Eva orated Recovered Esca ed Average Am't Average Am't Eva orated, Esca ed, 30 25 20 15 10 13. 0 11. 0 12. 0 13. 0 13. 5 12. 0 16. 0 16. 0 16. 0 25. 0 28. 0 27. 0 33. 0 31, 0 30. 0 33. 0 35. 0 34. 0 43. 0 39. 0 36. 0... Ai r Jet An le Amount, g Amount, g Amount, g Eva orated Recovered Esca ed Average Am't Eva orated, Average Am't Esca ed, 30 25 14. 0 13. 0 12. 0 14. 5 14. 0 12. 0 12. 14 11. 92 10. 38 13. 21 12. 74 10. 97 1. 86 1. 08 1. 62 1...

  13. On the virtual aeroshaping effect of synthetic jets Department of Mechanical and Aerospace Engineering, The George Washington University,

    E-Print Network [OSTI]

    Mittal, Rajat

    in a crossflow is investigated using numerical simulations. It has been suggested that this so-called virtual- teristics of the flow produced by a synthetic jet interacting with a crossflow have also led researchers

  14. Improved Engine Design Concepts Using the Second Law of Thermodynamics

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

    List of Previous Studies Effects of engine speed and load Effects of equivalence ratio Effects of combustion duration, timing and schedule Effects of the use...

  15. Improved Engine Design Concepts Using the Second Law of Thermodynamics...

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

    More Documents & Publications Thermodynamic Advantages of Low Temperature Combustion Engines Including the Use of Low Heat Rejection Concepts Are There Practical Approaches for...

  16. The Ford Motor Company Engineering Design Center opened

    E-Print Network [OSTI]

    Espinosa, Horacio D.

    of electrical engineering and computer science, won a Department of Energy Early Career Award. Dudley Childress science, is the director of Northwestern's new Center for Ultra-Scale Computing and Information Security. He also received an IBM Faculty Award. Mark Daskin, professor of industrial engineering

  17. PREFERENCE COORDINATION IN ENGINEERING DESIGN DECISION-MAKING

    E-Print Network [OSTI]

    Michalek, Jeremy J.

    practice and determining how best to coordinate this with engineering. He contributed directly and Carl Lenker contributed to the cost and demand models developed in Chapter 7, in addition to providing of freedom and responsibility; developing my sense of the academic literature and community in engineering

  18. Air Transport and Operations Symposium 2011 Strategic Jet Engine System Design in Light of

    E-Print Network [OSTI]

    prices that result from increasingly restricted access to crude oil. Climate change will also force ETWEEN 1971 and 2009, the 12-month average oil price fluctuated between $15 and over $90 per barrel Operating Cost of U.S. airlines* as Fig. 1 on the next page proves. 2. Peak Oil & Oil Price Predictions

  19. Proposal for the award of a contract for the provision of civil engineering design services on the CERN site

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    Proposal for the award of a contract for the provision of civil engineering design services on the CERN site

  20. Design of a 2.5kW Low Temperature Stirling Engine for Distributed Solar Thermal Generation

    E-Print Network [OSTI]

    Sanders, Seth

    Design of a 2.5kW Low Temperature Stirling Engine for Distributed Solar Thermal Generation Mike He on the design of a Stirling engine for distributed solar thermal ap- plications. In particular, we design for experimentation. Stirling engines can have broad significance and technological advantages for distributed

  1. Department of Mechanical Engineering Spring 2011 Liquid Nitrogen Packed Column Distributor Design

    E-Print Network [OSTI]

    Demirel, Melik C.

    concepts for a liquid nitrogen distributor for a packed distillation column. The design team at Penn State distillation column design. Approach The design team first gathered customer specifications from Air ProductsPENNSTATE Department of Mechanical Engineering Spring 2011 Liquid Nitrogen Packed Column

  2. Board of Regents University System of Georgia Architecture and Engineering Design Standards

    E-Print Network [OSTI]

    Board of Regents University System of Georgia Architecture and Engineering Design Standards your pointer on the section title and pick/select. #12;010000 - ARCHITECTURAL 7 010001- General Requirements 7 013515 LEED and Sustainable Design 42 013516 Sustainable Design Reporting 47 015713- Temporary

  3. Multiple jet interactions

    E-Print Network [OSTI]

    Hehr, Roger James

    1983-01-01T23:59:59.000Z

    MULTIPLE JET INTERACTIONS A Thesis by ROGER JAMES HEHR Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1983 Major Subject: Aerospace Engineering... MULTIPLE JET INTERACTIONS A Thesis by ROGER JAMES HEHR Approved as to style and content by: David . Norton (Chairman of Committee) raid L. orrison (Mem er) Leland A. Carlson (Member) Er est . Cross, r. (Head of Department) August 1983 ABSTRACT...

  4. Stakeholder-assisted modeling and policy design for engineering systems

    E-Print Network [OSTI]

    Mostashari, Ali, 1974-

    2005-01-01T23:59:59.000Z

    There is a growing realization that stakeholder involvement in decision-making for large- scale engineering systems is necessary and crucial, both from an ethical perspective, as well as for improving the chances of success ...

  5. A Study on Design Parameters of Stirling Engines for Buildings

    E-Print Network [OSTI]

    Ding, G.; Huang, S.; Zhang, C.; Hu, X.; Zhang, X.

    2006-01-01T23:59:59.000Z

    One of the most promising projects in the application of combined heat and power(CHP) lies in energy production for buildings. Stirling engines are very applicable to residential buildings, especially because of the higher electricity...

  6. Computer-Aided Engineering of Batteries for Designing Better Li-Ion Batteries (Presentation)

    SciTech Connect (OSTI)

    Pesaran, A.; Kim, G. H.; Smith, K.; Lee, K. J.; Santhanagopalan, S.

    2012-02-01T23:59:59.000Z

    This presentation describes the current status of the DOE's Energy Storage R and D program, including modeling and design tools and the Computer-Aided Engineering for Automotive Batteries (CAEBAT) program.

  7. Using an Instructional Engineering Method and a Modeling Tool to Design IMS-LD Units of

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    -LD Units of Learning Gilbert Paquette, Ileana de la Teja, Michel Léonard, Karin Lund- gren-Cayrol, Olga designers, in that it represents a more pedagogical viewpoint than software engineering graphical languages

  8. Student engineers design and race battery-powered cars in this...

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

    Click to enlarge. Student engineers design and race battery-powered cars in this year's Electric Car Competition By Justin H.S. Breaux * April 3, 2014 Tweet EmailPrint ARGONNE,...

  9. Genetic algorithm based optimization in engineering design using fuzzy constraints and fitness functions

    E-Print Network [OSTI]

    Vijayakumar, Bhuvaneshwaran

    2001-01-01T23:59:59.000Z

    The motivation for this work has been the use of tools, such as genetic algorithms and fuzzy sets, to address the various issues that are involved in an engineering design optimization problem. In order to address the variety, generality...

  10. Round-Trip Software Engineering Using UML: From Architecture to Design and Back

    E-Print Network [OSTI]

    Egyed, Alexander

    1 Round-Trip Software Engineering Using UML: From Architecture to Design and Back Abstract A key. 1 Introduction The basic promise of software architecture research is that better software systems

  11. Investigation of strategies for more effective coordination of simulations and experiments in engineering design

    E-Print Network [OSTI]

    Dimitriou, Aristos Orpheas

    2006-01-01T23:59:59.000Z

    The objective of this thesis is to lay the foundation for developing effective strategies for coordinated use of computational simulation and experiments in engineering design. The primary research objectives are to explore ...

  12. 1 Copyright 2013 by ASME Proceedings of the ASME 2013 International Design Engineering Technical Conference &

    E-Print Network [OSTI]

    1 Copyright © 2013 by ASME Proceedings of the ASME 2013 International Design Engineering Technical (Amazon, Epinions). Since social media has manifested itself to be a powerful tool for marketing

  13. 1 Copyright 2014 by ASME Proceedings of the ASME 2014 International Design Engineering Technical Conferences &

    E-Print Network [OSTI]

    Stachel, Hellmuth

    1 Copyright © 2014 by ASME Proceedings of the ASME 2014 International Design Engineering Technical components to transmit mechanical power in machines. They can be assembled to produce simple and planetary

  14. Proceedings of The ASME 2012 11th Biennial Conference On Engineering Systems& Design And Analysis

    E-Print Network [OSTI]

    Proceedings of The ASME 2012 11th Biennial Conference On Engineering Systems& Design And Analysis on the other side at a temperature approximately equal to 250oC. The temperature in the combustion chamber

  15. A normative approach to designing for evolvability : methods and metrics for considering evolvability in systems engineering

    E-Print Network [OSTI]

    Fulcoly, Daniel O'Brien

    2012-01-01T23:59:59.000Z

    As engineering endeavors become larger, more complex, and more expensive, the advantages of evolvable design and redesign grow. Cost and complexity are not the only factors driving the need for evolvability; changes in ...

  16. 25 kWe solar thermal stirling hydraulic engine system: Final conceptual design report

    SciTech Connect (OSTI)

    Not Available

    1988-01-01T23:59:59.000Z

    This report documents the conceptual design and analysis of a solar thermal free-piston Stirling hydraulic engine system designed to deliver 25 kWe when coupled to the 11-meter Test Bed Concentrator at Sandia National Laboratories. A manufacturing cost assessment for 10,000 units per year was made by Pioneer Engineering and Manufacturing. The design meets all program objectives including a 60,000-hr design life, dynamic balancing, fully automated control, >33.3% overall system efficiency, properly conditioned power, maximum utilization of annualized insolation, and projected production costs of $300/kW. The system incorporates a simple, rugged, reliable pool boiler reflux heat pipe to transfer heat from the solar receiver to the Stirling engine. The free-piston engine produces high-pressure hydraulic flow which powers a commercial hydraulic motor that, in turn, drives a commercial rotary induction generator. The Stirling hydraulic engine uses hermetic bellows seals to separate helium working gas from hydraulic fluid which provides hydrodynamic lubrication to all moving parts. Maximum utilization of highly refined, field proven commercial components for electric power generation minimizes development cost and risk. The engine design is based on a highly refined Stirling hydraulic engine developed over 20 years as a fully implantable artificial heart power source. 4 refs., 19 figs., 3 tabs.

  17. Welcome to the Department of Design, Manufacture and Engineering

    E-Print Network [OSTI]

    Mottram, Nigel

    Extreme Design Mechatronic Design #12;Make... Apple iMac & MacBook Air #12;Rapid Prototyping Facility · 3D Printing · 3 and 4 axis CNC routers · Engraver · Fused Deposition Modelling · Laser cutter/etcher · Vacuum

  18. A case study of collaborative facilities in engineering design

    SciTech Connect (OSTI)

    Monroe, Laura M [Los Alamos National Laboratory; Pugmire, David [ORNL

    2008-01-01T23:59:59.000Z

    In this paper we describe the use of visualization tools and facilities in the collaborative design of a replacement weapons system, the Reliable Replacement Warhead (RRW). We used not only standard collaboration methods but also a range of visualization software and facilities to bring together domain specialists from laboratories across the country to collaborate on the design and integrate this disparate input early in the design. This was the first time in U.S. weapons history that a weapon had been designed in this collaborative manner. Benefits included projected cost savings, design improvements and increased understanding across the project.

  19. Improving the manufacturing yield of investment cast turbine blades through robust design

    E-Print Network [OSTI]

    Margetts, David (David Lawrence)

    2008-01-01T23:59:59.000Z

    The manufacturing of turbine blades is often outsourced to investment casting foundries by aerospace companies that design and build jet engines. Aerospace companies have found that casting defects are an important cost ...

  20. Design and development of Stirling engines for stationary power generation applications in the 500 to 3000 horsepower range

    SciTech Connect (OSTI)

    None

    1980-02-01T23:59:59.000Z

    Initial work in a project on the design and development of Stirling engines for stationary integrated energy systems is reported. Information is included on a market assessment, design methodology, evaluation of engine thermodynamic performance, and preliminary system design. It is concluded that Stirling engines employing clean fossil fuels cannot compete with diesel engines. However, combustion technology exists for the successful burning of coal-derived fuels in a large stationary stirling engine. High thermal efficiency is predicted for such an engine and further development work is recommended. (LCL)

  1. A case study of collaborative facilities use in engineering design

    SciTech Connect (OSTI)

    Monroe, Laura M [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    In this paper we describe the use of visualization tools and facilities in the collaborative design of a replacement weapons system, the Reliable Replacement Warhead. We used not only standard collaboration methods but also a range of visualization software and facilities to bring together domain specialists from laboratories across the country to collaborate on the design and integrate this disparate input early in the design.

  2. chemical engineering research and design 8 9 ( 2 0 1 1 ) 18551864 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Haszeldine, Stuart

    chemical engineering research and design 8 9 ( 2 0 1 1 ) 1855­1864 Contents lists available at ScienceDirect Chemical Engineering Research and Design journal homepage: www sedimentary basins. © 2011 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights

  3. The influence of Reynolds numbers on resistance properties of jet pumps

    SciTech Connect (OSTI)

    Geng, Q. [Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China); Graduate University of Chinese Academy of Sciences, Beijing 100049 (China); Zhou, G. [Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China); Li, Q. [Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China); State Key laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry (China)

    2014-01-29T23:59:59.000Z

    Jet pumps are widely used in thermoacoustic Stirling heat engines and pulse tube cryocoolers to eliminate the effect of Gedeon streaming. The resistance properties of jet pumps are principally influenced by their structures and flow regimes which are always characterized by Reynolds numbers. In this paper, the jet pump of which cross section contracts abruptly is selected as our research subject. Based on linear thermoacoustic theory, a CFD model is built and the oscillating flow of the working gas is simulated and analyzed with different Reynolds numbers in the jet pump. According to the calculations, the influence of different structures and Reynolds numbers on the resistance properties of the jet pump are analyzed and presented. The results show that Reynolds numbers have a great influence on the resistance properties of jet pumps and some empirical formulas which are widely used are unsuitable for oscillating flow with small Reynolds numbers. This paper provides a more comprehensive understanding on resistance properties of jet pumps with oscillating flow and is significant for the design of jet pumps in practical thermoacoustic engines and refrigerators.

  4. Fusion Engineering and Design 82 (2007) 217236 Advanced power core system for the

    E-Print Network [OSTI]

    California at San Diego, University of

    2007-01-01T23:59:59.000Z

    . Keywords: Advanced tokamak; Power plant studies; Power core system; Blanket and divertor design; Power. Introduction The ARIES-AT power plant was evolved to assess and highlight the benefit of advanced technologies Engineering and Design 82 (2007) 217­236 ties on the performance of advanced tokamak power plants [1

  5. Computer scientists and engineers design and implement efficient software and hardware

    E-Print Network [OSTI]

    Rohs, Remo

    62 Computer scientists and engineers design and implement efficient software and hardware solutions to computer-solvable problems. They are involved in the development of areas such as high-speed networks, multimedia and creative technologies, systems design, video game development, and robotics. The Computer

  6. Computer scientists and engineers design and implement efficient software and hardware

    E-Print Network [OSTI]

    Rohs, Remo

    62 Computer scientists and engineers design and implement efficient software and hardware solutions to computer-solvable problems. They are involved in the development of areas such as high-speed networks, internet technologies, social networks, systems design, computer graphics, video game development

  7. Computer scientists and engineers design and implement efficient software and hardware solutions

    E-Print Network [OSTI]

    Rohs, Remo

    64 Computer scientists and engineers design and implement efficient software and hardware solutions to computer-solvable problems. They are involved in the development of areas such as high-speed networks, multimedia and creative technologies, systems design, virtual reality, and robotics. The Computer Science

  8. The Laboratory Environment of the URI Integrated Computer Engineering Design (ICED) Curriculum

    E-Print Network [OSTI]

    Uht, Augustus K.

    The Laboratory Environment of the URI Integrated Computer Engineering Design (ICED) Curriculum continuity. URI's new ICED undergraduate cur­ riculum addresses these issues through a comprehensive multi environment of the ICED curriculum. The pedagogical use of industrial CAD logic design and synthesis tools

  9. Fusion Engineering and Design 83 (2008) 912919 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Raffray, A. René

    2008-01-01T23:59:59.000Z

    con- cepts addressed in this paper are advanced ceramic breeder concepts, dual coolant blankets of the above considerations. First, ceramic breeder blanket concepts and lithium lead con- cepts Engineering and Design journal homepage: www.elsevier.com/locate/fusengdes Review of blanket designs

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

    E-Print Network [OSTI]

    Ponce, V. Miguel

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

  11. Department of Mechanical Engineering Fall 2010 Shell Eco-Marathon Car Design Project

    E-Print Network [OSTI]

    Demirel, Melik C.

    PENNSTATE Department of Mechanical Engineering Fall 2010 Shell Eco-Marathon Car Design Project team chose to convert a hydrogen fuel cell vehicle into a battery electric vehicle. This brought requirements. Approach · The design team chose a battery electric vehicle prototype because of the advances

  12. Engineering design of the Nova Laser Facility for inertial-confinement fusion

    SciTech Connect (OSTI)

    Simmons, W W; Godwin, R O; Hurley, C A; Wallerstein, E. P.; Whitham, K.; Murray, J. E.; Bliss, E. S.; Ozarski, R. G.; Summers, M. A.; Rienecker, F.; Gritton, D. G.; Holloway, F. W.; Suski, G. J.; Severyn, J. R.

    1982-01-25T23:59:59.000Z

    The design of the Nova Laser Facility for inertial confinement fusion experiments at Lawrence Livermore National Laboratory is presented from an engineering perspective. Emphasis is placed upon design-to-performance requirements as they impact the various subsystems that comprise this complex experimental facility.

  13. A Fast Relighting Engine for Interactive Cinematic Lighting Design Reid Gershbein Pat Hanrahan

    E-Print Network [OSTI]

    Stanford University

    A Fast Relighting Engine for Interactive Cinematic Lighting Design Reid Gershbein Pat Hanrahan Stanford University Abstract We present new techniques for interactive cinematic lighting design of complex both the lighting and texturing units of the graphics hardware. A similar factorization is used

  14. Fusion Engineering and Design 89 (2014) 19891994 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Abdou, Mohamed

    2014-01-01T23:59:59.000Z

    candidate for a fusion demonstration power plant (DEMO) being pursued by the US Fusion Community is the Dual A leading power reactor breeding blanket design candidate for a fusion demonstration power plant (DEMOFusion Engineering and Design 89 (2014) 1989­1994 Contents lists available at ScienceDirect Fusion

  15. Nuclear Engineering and Design/Fusion 2 (1985) 97-110 97 North-Holland, Amsterdam

    E-Print Network [OSTI]

    Ghoniem, Nasr M.

    Nuclear Engineering and Design/Fusion 2 (1985) 97-110 97 North-Holland, Amsterdam DEVELOPMENT OF DESIGN EQUATIONS FOR FERRITIC ALLOYS IN FUSION REACTORS Robert J. AMODEO and Nasr M. GHONIEM Fusion in determining the lifetime of materials in the fusion environment [1]. Equations which describe the swelling

  16. Proceedings of DETC'04 2004 ASME Design Engineering Technical Conferences and

    E-Print Network [OSTI]

    Williams II, Robert L.

    -effector accelerations. Most CSRs are designed with actuation redundancy, i.e. more cables than Cartesian motion (orProceedings of DETC'04 2004 ASME Design Engineering Technical Conferences and Computers SEVEN-DOF CABLE-SUSPENDED ROBOT WITH INDEPENDENT METROLOGY Robert L. Williams II and Ben Snyder

  17. FULL-SCALE, WIND TUNNEL AND CFD WIND ENGINEERING STUDIES A variety of methods can be used to obtain wind engineering design information. These include

    E-Print Network [OSTI]

    Savory, Eric

    FULL-SCALE, WIND TUNNEL AND CFD WIND ENGINEERING STUDIES A variety of methods can be used to obtain wind engineering design information. These include codes of practice, full-scale, wind tunnel are listed in the table below: Table 1. Relative advantages and disadvantages of wind engineering techniques

  18. Department of Mechanical Engineering Fall 2012 Intelligent Building Skin Design

    E-Print Network [OSTI]

    Demirel, Melik C.

    % reduction in solar heat gain The discretised polarizing sheet design is able to retrofit onto older. Additionally, we were tasked to evaluate Autodesk's software suite and its effectiveness in our design process of the prototype Used Autodesk Vasari to run solar analysis on the model of Rec Hall Fabricated a working scale

  19. Engineering design of a hypobaric plant growth chamber

    E-Print Network [OSTI]

    Purswell, Joseph Lawrence

    2002-01-01T23:59:59.000Z

    to model plant response to changes in component gas concentrations under hypobaric conditions. A primary objective in the design of the low-pressure vessels was the minimization of the number and rate of leaks into the system. A three...

  20. Concurrent engineering for mission design in different cultures

    E-Print Network [OSTI]

    Ogawa, Akira, S.M. Massachusetts Institute of Technology

    2008-01-01T23:59:59.000Z

    The satellite is a highly complex system due to the tight physical constraints, high reliability requirements, and the scale of the product. Except for some commercial missions, most of the satellites are designed from ...

  1. Optimal Engineering System Design Guided by Data-Mining Methods

    E-Print Network [OSTI]

    Ding, Yu

    WORDS: Classification and regression tree; Fixture layout optimization; K-means clustering; Kriging of the data-mining­aided optimal design is clearly demonstrated by comparison with both local optimization

  2. Fine density/design variable Computational Science and Engineering

    E-Print Network [OSTI]

    Paulino, Glaucio H.

    1400 1600 FE Analysis Optimization Initialization Buildings designed to minimize seismic or wind of the topology for a lower computational cost · National Science Foundation Coarse displacement mesh meshes · Topology optimization can be used to tailor cost effective structures or microstructures

  3. Robotic Design Studio: Exploring the Big Ideas of Engineering

    E-Print Network [OSTI]

    Turbak, Franklyn

    learn how to design, assemble, and program robots made out of LEGO® parts, sensors, motors, and small arts as an education for "free men", namely those who had the luxury of pursuing ideas and thoughts

  4. ICPP tank farm closure study. Volume 2: Engineering design files

    SciTech Connect (OSTI)

    NONE

    1998-02-01T23:59:59.000Z

    Volume 2 contains the following topical sections: Tank farm heel flushing/pH adjustment; Grouting experiments for immobilization of tank farm heel; Savannah River high level waste tank 20 closure; Tank farm closure information; Clean closure of tank farm; Remediation issues; Remote demolition techniques; Decision concerning EIS for debris treatment facility; CERCLA/RCRA issues; Area of contamination determination; Containment building of debris treatment facility; Double containment issues; Characterization costs; Packaging and disposal options for the waste resulting from the total removal of the tank farm; Take-off calculations for the total removal of soils and structures at the tank farm; Vessel off-gas systems; Jet-grouted polymer and subsurface walls; Exposure calculations for total removal of tank farm; Recommended instrumentation during retrieval operations; High level waste tank concrete encasement evaluation; Recommended heavy equipment and sizing equipment for total removal activities; Tank buoyancy constraints; Grout and concrete formulas for tank heel solidification; Tank heel pH requirements; Tank cooling water; Evaluation of conservatism of vehicle loading on vaults; Typical vault dimensions and approximately tank and vault void volumes; Radiological concerns for temporary vessel off-gas system; Flushing calculations for tank heels; Grout lift depth analysis; Decontamination solution for waste transfer piping; Grout lift determination for filling tank and vault voids; sprung structure vendor data; Grout flow properties through a 2--4 inch pipe; Tank farm load limitations; NRC low level waste grout; Project data sheet calculations; Dose rates for tank farm closure tasks; Exposure and shielding calculations for grout lines; TFF radionuclide release rates; Documentation of the clean closure of a system with listed waste discharge; and Documentation of the ORNL method of radionuclide concentrations in tanks.

  5. High Efficiency Clean Combustion Engine Designs for Gasoline and Diesel

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEN TOTechnology Validation »Engines | Department

  6. High-Efficiency Clean Combustion Engine Designs for Compression Ignition

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D e e p p a a r r t t m m e1DepartmentEngines

  7. Design Innovation Global network of designers, engineers, and innovators challenging complex real world problems

    E-Print Network [OSTI]

    Prinz, Friedrich B.

    and eight different countries. The course is now focused on teaching students the innovation methods multiple times, not only does it maximize student learning, it maximizes project insights for the student engineering students with real world engineering challenges, the course has evolved over the ages to meet

  8. Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-Print Network [OSTI]

    Lien, Jyh-Ming

    and solar panel packing. Advances in material science and robotics engineering also enable the realization many practical uses, ranging from folding maps and airbags to packing large solar panel arrays the development of self-folding origami that fold either by reacting to various stimuli such as light [4], heat

  9. Proceedings of DETC'2004: ASME 2004 Design Engineering Technical Conferences

    E-Print Network [OSTI]

    Chen, Wei

    is applicable to nonlinear and multivariable systems as well as problems having no explicit function that uncertainty plays an important role and should be taken into account during analysis and design processes in the paper. The optimal locations of the three points along each axis in the standard normal space

  10. Review of Metamodeling Techniques in Support of Engineering Design Optimization

    E-Print Network [OSTI]

    Wang, Gaofeng Gary

    * Corresponding author ASME Transactions, Journal of Mechanical design, 2006, in press. #12;2 Introduction. Despite continual advances in computing power, the complexity of analysis codes, such as finite element elaborated as follows: 1) it is easier to connect proprietary and often expensive simulation codes; 2

  11. ITER Engineering Design Activities -Overview ITER Technical Characteristics

    E-Print Network [OSTI]

    and test all essential fusion reactor technologies and components. Design Use existing technology and physics database to give confidence but be able to access advanced operational modes. Operation equivalent Operation The figure shows observed energy confinement time (s) in various experiments versus value derived

  12. The effect of fuel and engine design on diesel exhaust particle size distributions

    SciTech Connect (OSTI)

    Baumgard, K.J.; Johnson, J.H. [Michigan Technological Univ., Houghton, MI (United States)

    1996-09-01T23:59:59.000Z

    The objective of this research was to obtain diesel particle size distributions from a 1988 and a 1991 diesel engine using three different fuels and two exhaust control technologies (a ceramic particle trap and an oxidation catalytic converter). The particle size distributions from both engines were used to develop models to estimate the composition of the individual size particles. Nucleation theory of the H{sub 2}O and H{sub 2}SO{sub 4} vapor is used to predict when nuclei-mode particles will form in the dilution tunnel. Combining the theory with the experimental data, the conditions necessary in the dilution tunnel for particle formation are predicted. The paper also contains a discussion on the differences between the 1988 and 1991 engine`s particle size distributions. The results indicated that nuclei mode particles (0.0075--0.046 {micro}m) are formed in the dilution tunnel and consist of more than 80% H{sub 2}O-H{sub 2}SO{sub 4} particles when using the 1988 engine and 0.29 wt% sulfur fuel. Nucleation theory indicated that H{sub 2}O-H{sub 2}SO{sub 4} particles may form during dilution at 0.03 wt% fuel sulfur levels and above. The 1991 engine was designed for lower particulate emissions than the 1988 engine and the 1991 engine`s accumulation mode particles (0.046-1.0 {micro}m) were reduced more than 80% by volume compared to the 1988 engine using the same low sulfur fuel. The particle size composition model indicated that using low sulfur fuel and the 1991 engine, the nuclei mode contained more than 45% of the total solid particles and over 85% of the soluble organic fraction.

  13. ELSEVIER Fusion Engineering and Design 28 (1995) 240-251 Engineering

    E-Print Network [OSTI]

    Raffray, A. René

    1995-01-01T23:59:59.000Z

    Abstract Tritium behavior in ceramic breeder blankets is a key design issue for this class of blanket of ceramic breeder blanket tritium inventory. 1. Introduction An important aspect of the design and analysis of ceramic breeder blankets is the ability to predict the phenomenological behavior of tritium in the ceramic

  14. Proceedings of ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference

    E-Print Network [OSTI]

    Yang, Maria

    into corrective maintenance and preventive maintenance. In corrective maintenance, maintenance is only performed FOR SYSTEM DESIGN OPTIMIZATION BASED ON MAINTENANCE SCHEDULING WITH PROGNOSTICS AND HEALTH MANAGEMENT Bo Yang maintenance scheduling of systems with de- grading components is highly coupled with the design of the sys

  15. Development of High Efficiency Clean Combustion Engine Designs for Spark-Ignition and Compression-Ignition Internal Combustion Engines

    SciTech Connect (OSTI)

    Marriott, Craig; Gonzalez, Manual; Russell, Durrett

    2011-06-30T23:59:59.000Z

    This report summarizes activities related to the revised STATEMENT OF PROJECT OBJECTIVES (SOPO) dated June 2010 for the Development of High-Efficiency Clean Combustion engine Designs for Spark-Ignition and Compression-Ignition Internal Combustion Engines (COOPERATIVE AGREEMENT NUMBER DE-FC26-05NT42415) project. In both the spark- (SI) and compression-ignition (CI) development activities covered in this program, the goal was to develop potential production-viable internal combustion engine system technologies that both reduce fuel consumption and simultaneously met exhaust emission targets. To be production-viable, engine technologies were also evaluated to determine if they would meet customer expectations of refinement in terms of noise, vibration, performance, driveability, etc. in addition to having an attractive business case and value. Prior to this activity, only proprietary theoretical / laboratory knowledge existed on the combustion technologies explored The research reported here expands and develops this knowledge to determine series-production viability. Significant SI and CI engine development occurred during this program within General Motors, LLC over more than five years. In the SI program, several engines were designed and developed that used both a relatively simple multi-lift valve train system and a Fully Flexible Valve Actuation (FFVA) system to enable a Homogeneous Charge Compression Ignition (HCCI) combustion process. Many technical challenges, which were unknown at the start of this program, were identified and systematically resolved through analysis, test and development. This report documents the challenges and solutions for each SOPO deliverable. As a result of the project activities, the production viability of the developed clean combustion technologies has been determined. At this time, HCCI combustion for SI engines is not considered production-viable for several reasons. HCCI combustion is excessively sensitive to control variables such as internal dilution level and charge temperature. As a result, HCCI combustion has limited robustness when variables exceed the required narrow ranges determined in this program. HCCI combustion is also not available for the entire range of production engine speeds and loads, (i.e., the dynamic range is limited). Thus, regular SI combustion must be employed for a majority of the full dynamic range of the engine. This degrades the potential fuel economy impact of HCCI combustion. Currently-available combustion control actuators for the simple valve train system engine do not have the authority for continuous air - fuel or torque control for managing the combustion mode transitions between SI and HCCI and thus, require further refinement to meet customer refinement expectations. HCCI combustion control sensors require further development to enable robust long-term HCCI combustion control. Finally, the added technologies required to effectively manage HCCI combustion such as electric cam phasers, central direct fuel injection, cylinder pressure sensing, high-flow exhaust gas recirculation system, etc. add excessive on-engine cost and complexity that erodes the production-viability business

  16. Summary of the Preliminary Optical ICHMI Design Study: A Preliminary Engineering Design Study for a Standpipe Viewport

    SciTech Connect (OSTI)

    Anheier, Norman C.; Qiao, Hong (Amy) [Amy; Berglin, Eric J.; Hatchell, Brian K.

    2013-12-26T23:59:59.000Z

    This summary report examines an in-vessel optical access concept intended to support standoff optical instrumentation, control and human-machine interface (ICHMI) systems for future advanced small modular reactor (AdvSMR) applications. Optical-based measurement and sensing systems for AdvSMR applications have several key benefits over traditional instrumentation and control systems used to monitor reactor process parameters, such as temperature, flow rate, pressure, and coolant chemistry (Anheier et al. 2013). Direct and continuous visualization of the in-vessel components can be maintained using external cameras. Many optical sensing techniques can be performed remotely using open optical beam path configurations. Not only are in-vessel cables eliminated by these configurations, but also sensitive optical monitoring components (e.g., electronics, lasers, detectors, and cameras) can be placed outside the reactor vessel in the instrument vault, containment building, or other locations where temperatures and radiation levels are much lower. However, the extreme AdvSMR environment present challenges for optical access designs and optical materials. Optical access is not provided in any commercial nuclear power plant or featured in any reactor design, although successful implementation of optical access has been demonstrated in test reactors (Arkani and Gharib 2009). This report outlines the key engineering considerations for an AdvSMR optical access concept. Strict American Society of Mechanical Engineers (ASME) construction codes must be followed for any U.S. nuclear facility component (ASME 2013); however, the scope of this study is to evaluate the preliminary engineering issues for this concept, rather than developing a nuclear-qualified design. In addition, this study does not consider accident design requirements. In-vessel optical access using a standpipe viewport concept serves as a test case to explore the engineering challenges and performance requirements for sodium fast reactor (SFR) and high-temperature gas reactor (HTGR) AdvSMR applications. The expected environmental conditions for deployment are reviewed for both AdvSMR designs. Optical and mechanical materials that maximize component lifetime are evaluated for the standpipe viewport design under these conditions. Optical components and opto-mechanical designs that provide robust optical-to-metal seals and stress-free optical component mounting are identified, and then key performance specifications are developed for a sapphire optical viewport concept. Design strategies are examined that protect the internal optical surfaces from liquid-coolant condensation and impurity deposits. Finally, a conceptual standpipe viewport design that is suggestive of how this concept could be assembled using standard nuclear-qualified pipe components, is presented.

  17. Applications of Systems Engineering to the Research, Design, and Development of Wind Energy Systems

    SciTech Connect (OSTI)

    Dykes, K.; Meadows, R.; Felker, F.; Graf, P.; Hand, M.; Lunacek, M.; Michalakes, J.; Moriarty, P.; Musial, W.; Veers, P.

    2011-12-01T23:59:59.000Z

    This paper surveys the landscape of systems engineering methods and current wind modeling capabilities to assess the potential for development of a systems engineering to wind energy research, design, and development. Wind energy has evolved from a small industry in a few countries to a large international industry involving major organizations in the manufacturing, development, and utility sectors. Along with this growth, significant technology innovation has led to larger turbines with lower associated costs of energy and ever more complex designs for all major subsystems - from the rotor, hub, and tower to the drivetrain, electronics, and controls. However, as large-scale deployment of the technology continues and its contribution to electricity generation becomes more prominent, so have the expectations of the technology in terms of performance and cost. For the industry to become a sustainable source of electricity, innovation in wind energy technology must continue to improve performance and lower the cost of energy while supporting seamless integration of wind generation into the electric grid without significant negative impacts on local communities and environments. At the same time, issues associated with wind energy research, design, and development are noticeably increasing in complexity. The industry would benefit from an integrated approach that simultaneously addresses turbine design, plant design and development, grid interaction and operation, and mitigation of adverse community and environmental impacts. These activities must be integrated in order to meet this diverse set of goals while recognizing trade-offs that exist between them. While potential exists today to integrate across different domains within the wind energy system design process, organizational barriers such as different institutional objectives and the importance of proprietary information have previously limited a system level approach to wind energy research, design, and development. To address these challenges, NREL has embarked on an initiative to evaluate how methods of systems engineering can be applied to the research, design and development of wind energy systems. Systems engineering is a field within engineering with a long history of research and application to complex technical systems in domains such as aerospace, automotive, and naval architecture. As such, the field holds potential for addressing critical issues that face the wind industry today. This paper represents a first step for understanding this potential through a review of systems engineering methods as applied to related technical systems. It illustrates how this might inform a Wind Energy Systems Engineering (WESE) approach to the research, design, and development needs for the future of the industry. Section 1 provides a brief overview of systems engineering and wind as a complex system. Section 2 describes these system engineering methods in detail. Section 3 provides an overview of different types of design tools for wind energy with emphasis on NREL tools. Finally, Section 4 provides an overview of the role and importance of software architecture and computing to the use of systems engineering methods and the future development of any WESE programs. Section 5 provides a roadmap of potential research integrating systems engineering research methodologies and wind energy design tools for a WESE framework.

  18. Design and fabrication of a meso-scale stirling engine and combustor.

    SciTech Connect (OSTI)

    Echekki, Tarek (Sandia National Laboratories, Livermore, CA); Haroldsen, Brent L. (Sandia National Laboratories, Livermore, CA); Krafcik, Karen L. (Sandia National Laboratories, Livermore, CA); Morales, Alfredo Martin (Sandia National Laboratories, Livermore, CA); Mills, Bernice E. (Sandia National Laboratories, Livermore, CA); Liu, Shiling (Sandia National Laboratories, Livermore, CA); Lee, Jeremiah C. (Sandia National Laboratories, Livermore, CA); Karpetis, Adionos N. (Sandia National Laboratories, Livermore, CA); Chen, Jacqueline H. (Sandia National Laboratories, Livermore, CA); Ceremuga, Joseph T. (Sandia National Laboratories, Livermore, CA); Raber, Thomas N. (Sandia National Laboratories, Livermore, CA); Hekmuuaty, Michelle A. (Sandia National Laboratories, Livermore, CA)

    2005-05-01T23:59:59.000Z

    Power sources capable of supplying tens of watts are needed for a wide variety of applications including portable electronics, sensors, micro aerial vehicles, and mini-robotics systems. The utility of these devices is often limited by the energy and power density capabilities of batteries. A small combustion engine using liquid hydrocarbon fuel could potentially increase both power and energy density by an order of magnitude or more. This report describes initial development work on a meso-scale external combustion engine based on the Stirling cycle. Although other engine designs perform better at macro-scales, we believe the Stirling engine cycle is better suited to small-scale applications. The ideal Stirling cycle requires efficient heat transfer. Consequently, unlike other thermodynamic cycles, the high heat transfer rates that are inherent with miniature devices are an advantage for the Stirling cycle. Furthermore, since the Stirling engine uses external combustion, the combustor and engine can be scaled and optimized semi-independently. Continuous combustion minimizes issues with flame initiation and propagation. It also allows consideration of a variety of techniques to promote combustion that would be difficult in a miniature internal combustion engine. The project included design and fabrication of both the engine and the combustor. Two engine designs were developed. The first used a cylindrical piston design fabricated with conventional machining processes. The second design, based on the Wankel rotor geometry, was fabricated by through-mold electroforming of nickel in SU8 and LIGA micromolds. These technologies provided the requisite precision and tight tolerances needed for efficient micro-engine operation. Electroformed nickel is ideal for micro-engine applications because of its high strength and ductility. A rotary geometry was chosen because its planar geometry was more compatible with the fabrication process. SU8 lithography provided rapid prototypes to verify the design. A final high precision engine was created via LIGA. The micro-combustor was based on an excess enthalpy concept. Development of a micro-combustor included both modeling and experiments. We developed a suite of simulation tools both in support of the design of the prototype combustors, and to investigate more fundamental aspects of combustion at small scales. Issues of heat management and integration with the micro-scale Stirling engine were pursued using CFD simulations. We found that by choice of the operating conditions and channel dimensions energy conversion occurs by catalysis-dominated or catalysis-then-homogeneous phase combustion. The purpose of the experimental effort in micro-combustion was to study the feasibility and explore the design parameters of excess enthalpy combustors. The efforts were guided by the necessity for a practical device that could be implemented in a miniature power generator, or as a stand-alone device used for heat generation. Several devices were fabricated and successfully tested using methane as the fuel.

  19. A spherical joint piston design for high speed diesel engines

    SciTech Connect (OSTI)

    Wiczynski, P.D. [Cummins Engine Co., Inc., Columbus, IN (United States); Mielke, S. [Kolbenschmidt AG, Neckarsulm (Germany); Conrow, R.

    1996-09-01T23:59:59.000Z

    A spherical joint piston and connecting rod have been developed through design proof-of-concept. The spherical joint allows piston rotation. The benefits of a rotating, symmetrical piston are: mechanical and thermal load symmetry, improved ring sealing and lubrication, and reduced bearing loads, scuffing, clearances and oil consumption. The assembly includes a squeeze cast, fiber reinforced aluminum spherical joint piston. Reinforcement is located in the piston bowl and skirt. The connecting rod consists of a spherical small end positioned on an elliptical cross-sectioned shank blended into a conventional big end. The assembly has operated at cylinder pressures exceeding of 24 MPa.

  20. Small-Scale Industrial Cogeneration: Design Using Reciprocating Engines and Absorption Chillers

    E-Print Network [OSTI]

    Wagner, J. R.

    SMALL-SCALE INDUSTRIAL COGENERATION: DESIGN USING RECIPROCATING ENGINES AND ABSORPTION CHILLER Joseph R. Wagner Mechanical Technology Incorporated Latham, ABSTRACT This paper describes a packaged cogeneration system designed for light... to drive an absorption chiller. This approach yields a variety of unique advantages, including: (1) ability to satisfy the needs of facil ities that have a low ratio of thermal-to-electric energy needs, and which have significant. refriger ation loads...

  1. Fusion Engineering and Design 3940 (1998) 759764 Mechanical behavior and design database of packed beds for

    E-Print Network [OSTI]

    Abdou, Mohamed

    of packed beds for blanket designs Alice Y. Ying *, Zi Lu, Mohamed A. Abdou Mechanical and Aerospace

  2. Engineering Design, Construction, Operation and Analysis of the 2007 Texas A&M University Solar Decathlon House

    E-Print Network [OSTI]

    Ramirez, Eduardo

    2008-06-10T23:59:59.000Z

    This report presents the design, construction, and operation of a 100% solar-powered house from an engineering perspective. This includes energy simulation results, selection of systems, design of systems, assembly of systems, integration between...

  3. Engineering Design, Construction, Operation and Analysis of the 2007 Texas A&M University Solar Decathlon House

    E-Print Network [OSTI]

    Ramirez, E. J.

    This report presents the design, construction, and operation of a 100% solar-powered house from an engineering perspective. This includes energy simulation results, selection of systems, design of systems, assembly of systems, integration between...

  4. Kai Lindow -List of Publications Lindow, K.; Woll, R.; Stark, R. A Conceptual Framework for Sustainable Engineering Design. In

    E-Print Network [OSTI]

    Berlin,Technische Universität

    for Sustainable Product Creation. Proceedings of the 17th International Conference on Concurrent Engineering, CE for Sustainable Engineering Design. In: Dornfeld, D. A.; Linke, B. S. (Eds.): Leveraging Technology for a Sustainable World. Proceedings of the 19th CIRP Conference on Life Cycle Engineering (LCE 2012), 23 - 25 May

  5. Mechanical Engineering and Design of the LHC Phase II Collimators

    E-Print Network [OSTI]

    Bertarelli, A; Gentini, L; Mariani, N; Perret, R; Timmins, M A

    2010-01-01T23:59:59.000Z

    Phase II collimators will complement the existing system to improve the expected high RF impedance and limited efficiency of Phase I jaws. An international collaborative effort has been launched to identify novel advanced materials responding to the very challenging requirements of the new collimators. Complex numerical calculations simulating extreme conditions and experimental tests are in progress. In parallel, an innovative modular design concept of the jaw assembly is being developed to allow fitting in alternative materials, minimizing the thermally induced deformations, withstanding accidents and accepting high radiation doses. Phase II jaw assembly is made up of a molybdenum back-stiffener ensuring high geometrical stability and a modular jaw split in threes sectors. Each sector is equipped with a high-efficiency independent cooling circuit. Beam position monitors (BPM) are embedded in the jaws to fasten setup time and improve beam monitoring. An adjustment system will permit to fine-tune the jaw flat...

  6. Transportation Beyond 2000: Technologies Needed for Engineering Design

    SciTech Connect (OSTI)

    Huebner, L.D.; Asbury, S.C.; Lamar, J.E.; Mckinley, R.E. Jr.; Scott, R.C.; Small, W.J.; Torres, A.O.

    1996-02-01T23:59:59.000Z

    The purpose of the workshop was to acquaint the staff of the NASA Langley Research Center with the broad spectrum of transportation challenges and concepts foreseen within the next 20 years. The hope is that material presented at the workshop and contained in this document will stimulate innovative high-payoff research directed towards the efficiency of future transportation systems. The workshop included five sessions designed to stress the factors that will lead to a revolution in the way one will travel in the 21st century. The first session provides the historical background and a general perspective for future transportation, including emerging transportation alternatives such as working at a distance. Personal travel is the subject of Session Two. The third session looks at mass transportation, including advanced rail vehicles, advanced commuter aircraft, and advanced transport aircraft. Separate abstracts have been submitted to the database for articles from this workshop.

  7. Fusion Engineering and Design 80 (2006) 161180 ARIES-AT maintenance system definition and analysis

    E-Print Network [OSTI]

    California at San Diego, University of

    2006-01-01T23:59:59.000Z

    Fusion Engineering and Design 80 (2006) 161­180 ARIES-AT maintenance system definition and analysis maintenance of the power core. The short core refurbishment time coupled, with evolutionary improvements; Maintenance; Availability; Power core; Vacuum vessel 1. Introduction The ARIES studies, sponsored by DOE

  8. Reforming a large lecture modern physics course for engineering majors using a PER-based design

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    Reforming a large lecture modern physics course for engineering majors using a PER-based design S Department of Physics, University of Colorado, Boulder, CO 80309, USA Abstract. We have reformed a large of reforms in this course using pre/post surveys on both content and beliefs. We have found significant

  9. Fusion Engineering and Design 83 (2008) 10821086 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Abdou, Mohamed

    2008-01-01T23:59:59.000Z

    simulation (DNS) data base. The PIV measurements at Re = 11,300 were performed with variable Hartmann numbers Department, Univeristy of California, Los Angeles, 420 Westwood Plaza, 44-114 Engineering IV, Los Angeles, CA-II [2], the APEX thick/thin liquid walls [3], FFHR [4], and a solid first wall design based on advanced

  10. INTERNATIONAL CONFERENCE ON ENGINEERING DESIGN ICED 05 MELBOURNE, AUGUST 15-18, 2005

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    : Knowledge Management, research organisations, quality management 1 Introduction and objectives Knowledge Management Systems (KMS) have been developed in Engineering Design activities in order to improve of Knowledge Management Systems on firm activities. At least we will propose a method to monitor the impact

  11. Sessions 1526 & 2526 The URI Integrated Computer Engineering Design (ICED) Curriculum

    E-Print Network [OSTI]

    Uht, Augustus K.

    Sessions 1526 & 2526 The URI Integrated Computer Engineering Design (ICED) Curriculum: Progress the ICED curriculum in the Fall of 1997. The key feature of ICED is a substantial 2-3 year long project of ICED after two years of startup operation. Some custom hardware was required for the curriculum

  12. Department of Mechanical Engineering Spring 2013 Design of a Novel Endosurgical System

    E-Print Network [OSTI]

    Demirel, Melik C.

    PENNSTATE Department of Mechanical Engineering Spring 2013 Design of a Novel Endosurgical System efficient manner for the endoscope to reach the site of surgery, thus expanding the scope of procedures an original site visit with surgeons in Hershey to permit the team to identify customer needs and create

  13. Smart Engineering System Design, vol. 4:243-252, 2002 NETWORK CONGESTION ARBITRATION AND SOURCE PROBLEM

    E-Print Network [OSTI]

    Varela, Carlos

    to address the problem. However, these tools simply give the network administrator a great deal1 Smart Engineering System Design, vol. 4:243-252, 2002 NETWORK CONGESTION ARBITRATION AND SOURCE PROBLEM PREDICTION USING NEURAL NETWORKS J. ALAN BIVENS Computer Science Rensselaer Polytechnic Institute

  14. Fusion Engineering and Design 81 (2006) 455460 Breeder foam: an innovative low porosity solid breeder material

    E-Print Network [OSTI]

    Ghoniem, Nasr M.

    2006-01-01T23:59:59.000Z

    ; Foam processing; Foam applications 1. Introduction Solid breeder blanket concepts are typically based structural and Be material requirements in a breeder blanket. However, high density Li-ceramic foams haveFusion Engineering and Design 81 (2006) 455­460 Breeder foam: an innovative low porosity solid

  15. Complex Adaptive Systems of Systems (CASoS) engineering and foundations for global design.

    SciTech Connect (OSTI)

    Brodsky, Nancy S.; Finley, Patrick D.; Beyeler, Walter Eugene; Brown, Theresa Jean; Linebarger, John Michael; Moore, Thomas W.; Glass, Robert John, Jr.; Maffitt, S. Louise; Mitchell, Michael David; Ames, Arlo Leroy

    2012-01-01T23:59:59.000Z

    Complex Adaptive Systems of Systems, or CASoS, are vastly complex ecological, sociological, economic and/or technical systems which must be recognized and reckoned with to design a secure future for the nation and the world. Design within CASoS requires the fostering of a new discipline, CASoS Engineering, and the building of capability to support it. Towards this primary objective, we created the Phoenix Pilot as a crucible from which systemization of the new discipline could emerge. Using a wide range of applications, Phoenix has begun building both theoretical foundations and capability for: the integration of Applications to continuously build common understanding and capability; a Framework for defining problems, designing and testing solutions, and actualizing these solutions within the CASoS of interest; and an engineering Environment required for 'the doing' of CASoS Engineering. In a secondary objective, we applied CASoS Engineering principles to begin to build a foundation for design in context of Global CASoS

  16. Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and

    E-Print Network [OSTI]

    of this prediction algorithm does not need statistical data or rely on an underlying cinematic human model with preCopyright © 2009 by ASME 125 Proceedings of the ASME 2009 International Design Engineering by computationally demanding interpolation or extrapolation schemes. Since interpolation algorithms require data

  17. Advanced engineering design as practiced today from the view point of the CERN Industrial Liaison Officer

    E-Print Network [OSTI]

    Barone, Michele

    2012-01-01T23:59:59.000Z

    After an introduction about CERN, a brief description of the Large Hadron Collider(LHC) it is reviewed. Pros and cons of a few advanced engineering design cases are taken in consideration together with the involvement of the European Industry. The conclusion is that the LHC project has been an important driving force for Innovation in European Industry.

  18. Fusion Engineering and Design 85 (2010) 969973 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Raffray, A. René

    2010-01-01T23:59:59.000Z

    , the question posed was, "What R&D, in addition to ITER, is require to prepare for a demonstration power plant and top level R&D needs for each Panel is summa- rized here. 2.1. Fusion Fuel Cycle Fusion power plantsFusion Engineering and Design 85 (2010) 969­973 Contents lists available at ScienceDirect Fusion

  19. Fusion Engineering and Design 89 (2014) 876881 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Abdou, Mohamed

    2014-01-01T23:59:59.000Z

    , and is on a direct path to an attractive target power plant. · Near term research focus on specific tasks can enable to an attractive target power plant. The standard aspect ratio provides space for a solenoid, assuring robustFusion Engineering and Design 89 (2014) 876­881 Contents lists available at ScienceDirect Fusion

  20. Deployment Mechanism Design with Behavioral Modeling Based on Pro/Engineer Motion Skeleton

    E-Print Network [OSTI]

    kind of motion mechanisms, is often used to stretch out solar panels or antennas in spacecraftDeployment Mechanism Design with Behavioral Modeling Based on Pro/Engineer Motion Skeleton Chao.com.cn Keywords: Deployment mechanism, Motion skeleton, Behavioral modeling, Feasibility analysis Abstract

  1. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-Print Network [OSTI]

    Papalambros, Panos

    1 Copyright © 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical are often addressed through decomposition. Consider, for example, an electric vehicle (EV) powertrain to high-fidelity, "blackbox" simulations, in the form: #12;2 Copyright © 2010 by ASME -200000 -150000

  2. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences &

    E-Print Network [OSTI]

    Williams II, Robert L.

    1 Copyright © 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical of the power of computers (as PCs were on the rise) to solve linear equations via standard matrix methods;2 Copyright © 2009 by ASME 2. FOUR-BAR MECHANISM INVERSE DYNAMICS MATRIX METHOD For each moving link we can

  3. 1 Copyright 2013 by ASME PROCEEDINGS OF THE ASME 2013 INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES &

    E-Print Network [OSTI]

    Sandborn, Peter

    1 Copyright © 2013 by ASME PROCEEDINGS OF THE ASME 2013 INTERNATIONAL DESIGN ENGINEERING TECHNICAL by ASME 1 INTRODUCTION Products can be categorized into long life cycle and short life cycle products, communications infrastructure, power plants, and medical applications, are manufactured and remain in use

  4. Department of Mechanical Engineering Spring 2012 Space Vehicle Water Drop Test and Vehicle Design

    E-Print Network [OSTI]

    Demirel, Melik C.

    PENNSTATE Department of Mechanical Engineering Spring 2012 Space Vehicle Water Drop Test and Vehicle Design Overview The team was tasked with modelling the accelerations and pressures of an impact of the scaled landing vehicle to reduce the accelerations and pressures of the vehicle. Objectives Provide

  5. The Battle of the Water Sensor Networks ,,BWSN...: A Design Challenge for Engineers and Algorithms

    E-Print Network [OSTI]

    Pratt, Vaughan

    The Battle of the Water Sensor Networks ,,BWSN...: A Design Challenge for Engineers and Algorithms. Ghimire16 ; Brian D. Barkdoll17 ; Roberto Gueli18 ; Jinhui J. Huang19 ; Edward A. McBean20 ; William James of September 11, 2001, in the United States, world public awareness for possible terrorist attacks on water

  6. Conventional Facilities Chapter 10: Electrical Engineering 10-1 NSLS-II Preliminary Design Report

    E-Print Network [OSTI]

    Ohta, Shigemi

    Standards DOE O413.3A ­ Program and Project Management for the Acquisition of Capital Assets DOE O414.1C 10 ELECTRICAL ENGINEERING 10.1 Design Criteria 10.1.1 Codes and Standards The latest edition of the codes, standards, orders, and guides referred to in this section will be followed, with a reference

  7. Nuclear Engineering and Design 189 (1999) 757 Lower head integrity under steam explosion loads

    E-Print Network [OSTI]

    Yuen, Walter W.

    Nuclear Engineering and Design 189 (1999) 7­57 Lower head integrity under steam explosion loads T Received 24 August 1998; accepted 24 November 1998 Abstract Lower head integrity under steam explosion is `physically unreasonable'. © 1999 Elsevier Science S.A. All rights reserved. Keywords: Steam explosions

  8. Plasma engineering design of a compact reversed-field pinch reactor (CRFPR)

    SciTech Connect (OSTI)

    Bathke, C.G.; Embrechts, M.J.; Hagenson, R.L.; Krakowski, R.A.; Miller, R.L.

    1983-01-01T23:59:59.000Z

    The rationale for and the characteristics of the high-power-density Compact Reversed-Field Pinch Reactor (CRFPR) are discussed. Particular emphasis is given to key plasma engineering aspects of the conceptual design, including plasma operations, current drive, and impurity/ash control by means of pumped limiters or magnetic divertors. A brief description of the Fusion-Power-Core integration is given.

  9. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers

    E-Print Network [OSTI]

    Lewis, Kemper E.

    1 Copyright © 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical PRODUCT FAMILY COST AND MITIGATE PERFORMANCE LOSSES Phil Cormier Graduate Research Assistant Department: kelewis@buffalo.edu Abstract Commonality amongst a family of products provides both technical and economic

  10. Proceedings of IDETC/CIE 2005 ASME 2005 International Design Engineering Technical Conferences

    E-Print Network [OSTI]

    Moehlis, Jeff

    of the system. Rather, such systems exhibit branch- specific nonlinearities which, when collectively analyzedProceedings of IDETC/CIE 2005 ASME 2005 International Design Engineering Technical Conferences;such systems can exhibit not only typical softening or hardening behavior, but also mixed behavior

  11. Transportation Beyond 2000: Technologies Needed for Engineering Design

    SciTech Connect (OSTI)

    Huebner, L.D.; Asbury, S.C.; Lamar, J.E.; Mckinley, R.E. Jr.; Scott, R.C.; Small, W.J.; Torres, A.O.

    1996-02-01T23:59:59.000Z

    The purpose of the workshop was to acquaint the staff of the NASA Langley Research Center with the broad spectrum of transportation challenges and concepts foreseen within the next 20 years. The hope is that the material presented at the workshop and contained in this document will stimulate innovative high-payoff research directed towards the efficiency of future transportation systems. The workshop included five sessions designed to stress the factors that will lead to a revolution in the way we will travel in the 21st century. The first session provides the historical background and a general perspective for future transportation, including emerging transportation alternatives such as working at a distance. Personal travel is the subject of Session Two. The third session looks at mass transportation, including advanced rail vehicles, advanced commuter aircraft, and advanced transport aircraft. The fourth session addresses some of the technologies required for the above revolutionary approaches. Separate abstracts have been submitted to the database for some articles from this report.

  12. Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-Print Network [OSTI]

    Williams II, Robert L.

    Timothy Cyders Ohio University Athens, Ohio, USA tc285202@ohio.edu Robert L. Williams II Ohio University Athens, Ohio, USA williar4@ohio.edu ABSTRACT Effective continuously variable transmission (CVT) designs to the significant prospects of energy savings and performance increases [1-4]. A class of CVT's known as Infinitely

  13. Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-Print Network [OSTI]

    Papalambros, Panos

    Interactive Evolutionary Computation (IEC) [9, 11, 24, 25, 27]. This category of research considers [11,12] or Genetic Program- ming [9,24]. During an IEC interaction, the computer presents a query, i and mutation, on the existing designs. This completes one iteration of IEC. While IEC allows users to freely

  14. Fusion Engineering and Design 87 (2012) 777781 Contents lists available at SciVerse ScienceDirect

    E-Print Network [OSTI]

    Abdou, Mohamed

    2012-01-01T23:59:59.000Z

    Li) loop at UCLA, including testing and calibration of its components (electro- magnetic (EM) pump, EM flow-meterFusion Engineering and Design 87 (2012) 777­781 Contents lists available at SciVerse ScienceDirect Fusion Engineering and Design journal homepage: www.elsevier.com/locate/fusengdes Status of "TITAN" Task

  15. Office of the Faculty of Engineering Syllabus for the Degree Project for the B.A. in Industrial Design

    E-Print Network [OSTI]

    Office of the Faculty of Engineering Syllabus for the Degree Project for the B.A. in Industrial Design Approved by the Board of the Faculty of Engineering on 2nd March 2009 and valid from 1 st January of compulsory courses that can be accredited to the degree of Bachelor of Arts in Industrial Design. Exemption

  16. Nuclear Engineering and Design 242 (2012) 1925 Contents lists available at SciVerse ScienceDirect

    E-Print Network [OSTI]

    Martin, Ralph R.

    2012-01-01T23:59:59.000Z

    Lib a Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China bNuclear Engineering and Design 242 (2012) 19­25 Contents lists available at SciVerse ScienceDirect Nuclear Engineering and Design journal homepage: www.elsevier.com/locate/nucengdes The various creep

  17. UMTRA Project value engineering plan. [Design and construction of stabilized tailings embankments

    SciTech Connect (OSTI)

    Not Available

    1990-06-01T23:59:59.000Z

    The objective of value engineering (VE) on the Uranium MILL Tailings Remedial Action (UMTRA) Project is to ensure that remedial action at the UMTRA Project sites is performed to meet the US Environmental Protection Agency (EPA) standards for inactive uranium mill tailings sites at the lowest cost, while maintaining a high quality of work. Through review of designs and consideration of reasonable, less expensive alternatives, VE can be an effective cost reduction tool and a means to improve the design. The UMTRA Project products are the design and construction of stabilized tailings embankments.

  18. All products of the future clothes, household devices, lamps will contain electronic units. Graduates in Electronic Design Engineering will be able

    E-Print Network [OSTI]

    . Graduates in Electronic Design Engineering will be able to design both electronics and system software will also help to reduce carbon emissions. The Electronic Design Engineering programme equips students students to apply skills within real-life company projects. The Electronic Design Engineering programme

  19. ELSEVIER Fusion Engineering and Design 29 (1995) 43.~50 Engineering

    E-Print Network [OSTI]

    Najmabadi, Farrokh

    in material limits or the length of the dwell period. 1. Introduction The PULSAR design study [ 1,2] has-3796/95/$09.50 ,J" 1995 Elsevier Science S.A. All rights reserved SSDlO920-3796(94)0038X-2 #12;44 G.T. Sager et al to provide uniform electrical output and minimize thermal cycling of the balance-of-plant equipment. Two

  20. Fusion Engineering and Design 4950 (2000) 689695 ARIES-ST breeding blanket design and analysis

    E-Print Network [OSTI]

    Pulsifer, John

    2000-01-01T23:59:59.000Z

    -cooled ferritic steel structures. The main features of the blanket design are summarized here together properties, as well as the compatibility with ferritic steels and vanadium alloys for this liquid metal-DEMO design include extension of the power handling capability of the first wall by using an advanced ODS

  1. Acknowledgments: NASA Glenn Research Center (Grant #NNC04GB44G) College of Engineering Prof. Martin Abraham NASA envisions employing fuel cells running on jet fuel reformate for its uninhabited aerial vehicles (UAVs), low emission alternative power (LE

    E-Print Network [OSTI]

    Azad, Abdul-Majeed

    · Prof. Martin Abraham NASA envisions employing fuel cells running on jet fuel reformate for its to the formation of H2S which is detrimental to the anode in the fuel cell stack in addition to emitting unpleasant's research and commercial flights using solid oxide fuel cells. ·· Designing nanoscale ceria-based sulfur

  2. Accelerating Design of Batteries Using Computer-Aided Engineering Tools (Presentation)

    SciTech Connect (OSTI)

    Pesaran, A.; Kim, G. H.; Smith, K.

    2010-11-01T23:59:59.000Z

    Computer-aided engineering (CAE) is a proven pathway, especially in the automotive industry, to improve performance by resolving the relevant physics in complex systems, shortening the product development design cycle, thus reducing cost, and providing an efficient way to evaluate parameters for robust designs. Academic models include the relevant physics details, but neglect engineering complexities. Industry models include the relevant macroscopic geometry and system conditions, but simplify the fundamental physics too much. Most of the CAE battery tools for in-house use are custom model codes and require expert users. There is a need to make these battery modeling and design tools more accessible to end users such as battery developers, pack integrators, and vehicle makers. Developing integrated and physics-based CAE battery tools can reduce the design, build, test, break, re-design, re-build, and re-test cycle and help lower costs. NREL has been involved in developing various models to predict the thermal and electrochemical performance of large-format cells and has used in commercial three-dimensional finite-element analysis and computational fluid dynamics to study battery pack thermal issues. These NREL cell and pack design tools can be integrated to help support the automotive industry and to accelerate battery design.

  3. Stellar jets

    E-Print Network [OSTI]

    Thomas J. Maccarone

    2008-05-23T23:59:59.000Z

    With a goal of understanding the conditions under which jets might be produced in novae and related objects, I consider the conditions under which jets are produced from other classes of accreting compact objects. I give an overview of accretion disk spectral states, including a discussion of in which states these jets are seen. I highlight the differences between neutron stars and black holes, which may help give us insights about when and how the presence of a solid surface may help or inhibit jet production.

  4. iREED 2008 Renewable Energies and Eco-Design in Electrical Engineering, 10-11 December 2008 ECO-DESIGN OF ELECTRO-MECHANICAL ENERGY CONVERTERS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    iREED 2008 Renewable Energies and Eco-Design in Electrical Engineering, 10-11 December 2008 ECO-DESIGN OF ELECTRO-MECHANICAL ENERGY CONVERTERS: THE CASE OF THE THREE-PHASE SQUIRREL-CAGE INDUCTION MACHINE V-design problematic on the single criterion of energy for electro-mechanical energy converters through the model

  5. An overview of reliability assessment and control for design of civil engineering structures

    SciTech Connect (OSTI)

    Field, R.V. Jr. [Sandia National Labs., Albuquerque, NM (United States). Structural Dynamics and Vibration Control Dept.; Grigoriadis, K.M. [Univ. of Houston, TX (United States). Mechanical Engineering Dept.; Bergman, L.A. [Univ. of Illinois, Urbana, IL (United States); Skelton, R.E. [Univ. of California, San Diego, La Jolla, CA (United States). Applied Mechanics and Engineering Sciences Dept.

    1998-06-01T23:59:59.000Z

    Random variations, whether they occur in the input signal or the system parameters, are phenomena that occur in nearly all engineering systems of interest. As a result, nondeterministic modeling techniques must somehow account for these variations to ensure validity of the solution. As might be expected, this is a difficult proposition and the focus of many current research efforts. Controlling seismically excited structures is one pertinent application of nondeterministic analysis and is the subject of the work presented herein. This overview paper is organized into two sections. First, techniques to assess system reliability, in a context familiar to civil engineers, are discussed. Second, and as a consequence of the first, active control methods that ensure good performance in this random environment are presented. It is the hope of the authors that these discussions will ignite further interest in the area of reliability assessment and design of controlled civil engineering structures.

  6. Engineering Design Study of Quasi-Axisymmetric Stellarator with Low Aspect Ratio

    SciTech Connect (OSTI)

    Matsuoka, Keisuke [National Institute for Fusion Science (Japan); Okamura, Shoichi [National Institute for Fusion Science (Japan); Nishimura, Shin [National Institute for Fusion Science (Japan); Isobe, Mitsutaka [National Institute for Fusion Science (Japan); Suzuki, Chihiro [National Institute for Fusion Science (Japan); Shimizu, Akihiro [National Institute for Fusion Science (Japan); Tanaka, Nobuo [Mitsubishi Fusion Center (Japan); Hasegawa, Mitsuru [Mitsubishi Fusion Center (Japan); Naito, Hideji [Mitsubishi Fusion Center (Japan); Urata, Kazuhiro [Mitsubishi Fusion Center (Japan); Suzuki, Yutaka [Mitsubishi Fusion Center (Japan); Tsukamoto, Tadanori [Mitsubishi Fusion Center (Japan)

    2004-09-15T23:59:59.000Z

    The engineering design of the quasi-axisymmetric stellarator CHS-qa is described, having a toroidal period number of 2, major radius of 1.5 m, and plasma aspect ratio of 3.2. Although the entire structure of the machine is highly nonaxisymmetric and deformative, the following major engineering concerns for the modular coils and the vacuum vessel have been resolved: (a) modular coil design (curvature and twist of conductors), (b) supporting structures for modular coils, (c) errors due to electromagnetic forces and misalignment in manufacturing processes (analysis shows that the magnetic surface is robust against such disturbances), (d) construction procedure for vacuum vessel and modular coils, and (e) ports for heating and diagnostics.

  7. Design fixation: an inhibition of creativity and quality in engineering design

    E-Print Network [OSTI]

    Mauldin, Richard Garret

    1988-01-01T23:59:59.000Z

    &M University. Also, I would like to thank Dr. Steven M. Smith of the department of Psychology for his help and expertise in the psychological areas of this thesis. TABLE OF CONTENTS ABSTRACT Page ACKNOWLEDGEMENT TABLE OF CONTENTS 1V LIST OF TABLES... spill-proof coffee cup problem FIGURE 18 The "Don't be fixated" example design for the disposable spill-proof coffee cup problem FIGURE 19 The pill problem's cover sheet FIGURE 20 The pill problem's example design FIGURE 21 The pill problem...

  8. Characterization and design of non-adiabatic micro-compressor impeller and preliminary design of self-sustained micro engine system

    E-Print Network [OSTI]

    Sirakov, Borislav Todorov, 1975-

    2005-01-01T23:59:59.000Z

    As part of the MIT research program on micro-engines (of size [approximately] 1 cm), this thesis defines concepts and designs to improve micro-turbomachinery and overall system performance. Three-dimensional Reynolds-averaged ...

  9. SLUDGE TREATMENT PROJECT ENGINEERED CONTAINER RETRIEVAL AND TRANSFER SYSTEM PRELIMINARY DESIGN HAZARD ANALYSIS SUPPLEMENT 1

    SciTech Connect (OSTI)

    FRANZ GR; MEICHLE RH

    2011-07-18T23:59:59.000Z

    This 'What/If' Hazards Analysis addresses hazards affecting the Sludge Treatment Project Engineered Container Retrieval and Transfer System (ECRTS) NPH and external events at the preliminary design stage. In addition, the hazards of the operation sequence steps for the mechanical handling operations in preparation of Sludge Transport and Storage Container (STSC), disconnect STSC and prepare STSC and Sludge Transport System (STS) for shipping are addressed.

  10. Conventional Facilities Chapter 5: Structural Engineering 5-1 NSLS-II Preliminary Design Report

    E-Print Network [OSTI]

    Ohta, Shigemi

    .1.2 DOE Orders DOE O5480.4 ­ Environmental Protection, Safety and Health Protection Standards DOE O413.3A420.1B ­ Facility Safety DOE O420.2B ­ Safety of Accelerator Facilities 5.1.3 Codes, Standards STRUCTURAL ENGINEERING 5.1 Design Criteria 5.1.1 Codes and Standards The latest edition of the codes

  11. Fusion Engineering and Design 81 (2006) 11591168 Major integration issues in evolving the configuration design

    E-Print Network [OSTI]

    Raffray, A. René

    2006-01-01T23:59:59.000Z

    the configuration design space for the ARIES-CS compact stellarator power plant A.R. Raffraya,, S. Malangb, L. El an attractive power plant concept based on a compact stellarator configuration. The first phase of the study and the irregular cross-section of the plasma and in-reactor components. Earlier stellarator power plant studies led

  12. STRUCTURAL ENGINEERING MINOR The Minor in Structural Engineering is a unique opportunity offered to students of the College of Environmental Design to

    E-Print Network [OSTI]

    Alvarez-Cohen, Lisa

    of steel, concrete or timber (CE122N, CE123N, CE124) These basic courses are complemented by additional exist in major architectural-engineering companies that appreciate the holistic approach to design: Ove of the joint degree are also employed with smaller companies emphasizing either architectural design

  13. OPENING ANGLES OF COLLAPSAR JETS

    SciTech Connect (OSTI)

    Mizuta, Akira; Ioka, Kunihito [Theory Center, Institute of Particle and Nuclear Studies, KEK, Tsukuba 305-0801 (Japan)

    2013-11-10T23:59:59.000Z

    We investigate the jet propagation and breakout from the stellar progenitor for gamma-ray burst (GRB) collapsars by performing two-dimensional relativistic hydrodynamic simulations and analytical modeling. We find that the jet opening angle is given by ?{sub j} ? 1/5?{sub 0} and infer the initial Lorentz factor of the jet at the central engine, ?{sub 0}, is a few for existing observations of ?{sub j}. The jet keeps the Lorentz factor low inside the star by converging cylindrically via collimation shocks under the cocoon pressure and accelerates at jet breakout before the free expansion to a hollow-cone structure. In this new picture, the GRB duration is determined by the sound crossing time of the cocoon, after which the opening angle widens, reducing the apparent luminosity. Some bursts violating the maximum opening angle ?{sub j,{sub max}} ? 1/5 ? 12° imply the existence of a baryon-rich sheath or a long-acting jet. We can explain the slopes in both Amati and Yonetoku spectral relations using an off-centered photosphere model, if we make only one assumption that the total jet luminosity is proportional to the initial Lorentz factor of the jet. We also numerically calibrate the pre-breakout model (Bromberg et al.) for later use.

  14. & Mechanical Engineering

    E-Print Network [OSTI]

    Zhou, Chongwu

    , robotics, and the development of new tools for integrated approaches to concurrent engineeringAME Aerospace & Mechanical Engineering #12;Aerospace and Mechanical Engineers design complex Engineering (AME) students conduct basic and applied research within and across the usual disciplinary

  15. Conceptual design and engineering studies of adiabatic compressed air energy storage (CAES) with thermal energy storage

    SciTech Connect (OSTI)

    Hobson, M. J.

    1981-11-01T23:59:59.000Z

    The objective of this study was to perform a conceptual engineering design and evaluation study and to develop a design for an adiabatic CAES system using water-compensated hard rock caverns for compressed air storage. The conceptual plant design was to feature underground containment for thermal energy storage and water-compensated hard rock caverns for high pressure air storage. Other design constraints included the selection of turbomachinery designs that would require little development and would therefore be available for near-term plant construction and demonstration. The design was to be based upon the DOE/EPRI/PEPCO-funded 231 MW/unit conventional CAES plant design prepared for a site in Maryland. This report summarizes the project, its findings, and the recommendations of the study team; presents the development and optimization of the plant heat cycle and the selection and thermal design of the thermal energy storage system; discusses the selection of turbomachinery and estimated plant performance and operational capability; describes the control system concept; and presents the conceptual design of the adiabatic CAES plant, the cost estimates and economic evaluation, and an assessment of technical and economic feasibility. Particular areas in the plant design requiring further development or investigation are discussed. It is concluded that the adiabatic concept appears to be the most attractive candidate for utility application in the near future. It is operationally viable, economically attractive compared with competing concerns, and will require relatively little development before the construction of a plant can be undertaken. It is estimated that a utility could start the design of a demonstration plant in 2 to 3 years if research regarding TES system design is undertaken in a timely manner. (LCL)

  16. Proceedings of the international workshop on engineering design of next step reversed field pinch devices

    SciTech Connect (OSTI)

    Thomson, D.B. (comp.)

    1987-11-01T23:59:59.000Z

    These Proceedings contain the formal contributed papers, the workshop papers and workshop summaries presented at the International Workshop on Engineering Design of Next Step RFP Devices held at Los Alamos, July 13-17, 1987. Contributed papers were presented at formal sessions on the topics: (1) physics overview (3 papers); (2) general overview (3 papers); (3) front-end (9 papers); (4) computer control and data acquisition (1 paper); (5) magnetics (5 papers); and (6) electrical design (9 papers). Informal topical workshop sessions were held on the topics: (1) RFP physics (9 papers); (2) front-end (7 papers); (3) magnetics (3 papers); and (4) electrical design (1 paper). This volume contains the summaries written by the Chairmen of each of the informal topical workshop sessions. The papers in these Proceedings represent a significant review of the status of the technical base for the engineering design of the next step RFP devices being developed in the US, Europe, and Japan, as of this date.

  17. Mitral Web -A New Concept for Mitral Valve Repair: Improved Engineering Design and In-Vitro Studies

    E-Print Network [OSTI]

    Pekkan, Kerem

    Mitral Web - A New Concept for Mitral Valve Repair: Improved Engineering Design and In of Biomedical Engineering, Georgia Institute of Technology, GA, USA Myxomatous mitral valve disease is currently reported that mitral valve repair is preferable to valve replace- ment, as it offers certain advantages

  18. A Systems Engineering Framework for Design, Construction and Operation of the Next Generation Nuclear Plant

    SciTech Connect (OSTI)

    Edward J. Gorski; Charles V. Park; Finis H. Southworth

    2004-06-01T23:59:59.000Z

    Not since the International Space Station has a project of such wide participation been proposed for the United States. Ten countries, the European Union, universities, Department of Energy (DOE) laboratories, and industry will participate in the research and development, design, construction and/or operation of the fourth generation of nuclear power plants with a demonstration reactor to be built at a DOE site and operational by the middle of the next decade. This reactor will be like no other. The Next Generation Nuclear Plant (NGNP) will be passively safe, economical, highly efficient, modular, proliferation resistant, and sustainable. In addition to electrical generation, the NGNP will demonstrate efficient and cost effective generation of hydrogen to support the President’s Hydrogen Initiative. To effectively manage this multi-organizational and technologically complex project, systems engineering techniques and processes will be used extensively to ensure delivery of the final product. The technological and organizational challenges are complex. Research and development activities are required, material standards require development, hydrogen production, storage and infrastructure requirements are not well developed, and the Nuclear Regulatory Commission may further define risk-informed/performance-based approach to licensing. Detailed design and development will be challenged by the vast cultural and institutional differences across the participants. Systems engineering processes must bring the technological and organizational complexity together to ensure successful product delivery. This paper will define the framework for application of systems engineering to this $1.5B - $1.9B project.

  19. A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System

    E-Print Network [OSTI]

    Norwood, Zachary Mills

    2011-01-01T23:59:59.000Z

    systems (typically Stirling engines or CPV modules) forheat engines including Brayton, Ericsson, and Stirling, thefocal-mounted engine (e.g. dish-Stirling) by decoupling the

  20. Retrofit of Soederberg smelter at Alusaf Bayside plant. Part 1: Conceptual design and engineering

    SciTech Connect (OSTI)

    Vogelsang, D.; Droste, C.; Segatz, M.; Eick, I. [VAW Aluminium-Technologie GmbH, Bonn (Germany)

    1996-10-01T23:59:59.000Z

    A main objective of the Bayside Smelter modernization at Alusaf Pty. is the retrofit of the Soederberg pots operating at 120 kA to prebake cells with a current load of 165 kA. The complete design and engineering of this modernization project was done by VAW. Based on computer simulations a tailor-made concept for the retrofit project was developed. A pilot plant trial was conducted successfully in 1994. This paper presents the retrofit concept with details of the magneto-hydrodynamic and thermo-electric calculations. Plant measurements demonstrate the good agreement with computer simulations. Some highlights of the detailed engineering for the modernized pots elucidate concepts of integrating existing and new hardware.

  1. The practice of design is at the central core of engineering. While the basic sciences are concerned with the discovery of new knowledge, engineering is concerned with the application

    E-Print Network [OSTI]

    Chini, Gregory P.

    are concerned with the discovery of new knowledge, engineering is concerned with the application of existing a synthesis of creativity, basic scientific knowledge, engineering analysis and project management skillsDesign The practice of design is at the central core of engineering. While the basic sciences

  2. Chemical engineers design, control and optimize large-scale chemical, physicochemical and

    E-Print Network [OSTI]

    Rohs, Remo

    Science, Biochemical, Environmental and Petroleum Engineering. CHEMICAL & MATERIALS SCIENCE CHE OVERVIEW (Environmental) Bachelor of Science 135 units Chemical Engineering (Petroleum) Bachelor of Science 136 units Chemical Engineering (Polymer Science) Bachelor of Science 136 units Petroleum Engineering minor

  3. Jet observables without jet algorithms

    E-Print Network [OSTI]

    Bertolini, Daniele

    We introduce a new class of event shapes to characterize the jet-like structure of an event. Like traditional event shapes, our observables are infrared/collinear safe and involve a sum over all hadrons in an event, but ...

  4. Design, fabrication, and testing of a sodium evaporator for the STM4-120 kinematic Stirling engine

    SciTech Connect (OSTI)

    Rawlinson, K.S.; Adkins, D.R.

    1995-05-01T23:59:59.000Z

    This report describes the development and testing of a compact heat-pipe heat exchanger kW(e) designed to transfer thermal energy from hot combustion gases to the heater tubes of a 25-kW(e) Stirling engine. In this system, sodium evaporates from a surface that is heated by a stream of hot gases. The liquid metal then condenses on the heater tubes of a Stirling engine, where energy is transferred to the engine`s helium working fluid. Tests on a prototype unit illustrated that a compact (8 cm {times} 13 cm {times} 16 cm) sodium evaporator can routinely transfer 15 kW(t) of energy at an operating vapor temperature of 760 C. Four of these prototype units were eventually used to power a 25-kW(e) Stirling engine system. Design details and test results from the prototype unit are presented in this report.

  5. Materials technology assessment for a 1050 K Stirling Space Engine design

    SciTech Connect (OSTI)

    Scheuermann, C.M.; Dreshfield, R.L.; Gaydosh, D.J.; Kiser, J.D.; MacKay, R.A.; McDanels, D.L.; Petrasek, D.W.; Vannucci, R.D.; Bowles, K.J.; Watson, G.K.

    1988-10-01T23:59:59.000Z

    An assessment of materials technology and proposed materials selection was made for the 1050 K (superalloy) Stirling Space Engine design. The objectives of this assessment were to evaluate previously proposed materials selections, evaluate the current state-of-the-art materials, propose potential alternate materials selections and identify research and development efforts needed to provide materials that can meet the stringent system requirements. This assessment generally reaffirmed the choices made by the contractor; however, in many cases alternative choices were described and suggestions for needed materials and fabrication research and development were made.

  6. Journal of Engineering Design, Vol. 15, No.4, pp. 327-351, August 2004 Ontology-based systematization of functional knowledge

    E-Print Network [OSTI]

    Mizoguchi, Riichiro

    engineering because it is deeply related to how we can deal with knowledge. Needless to say, design process engineering, which is the successor to knowledge engineering, has been expected to overcome some difficulties the conventional knowledge engineering cannot solve. The main objective of this paper is to propose an innovative

  7. Internship Students Engine / Powertrain Development FEV is offering challenging internships in the field of light-duty diesel powertrain. This internship is designed

    E-Print Network [OSTI]

    Hutcheon, James M.

    in the field of light-duty diesel powertrain. This internship is designed for Masters of Science candidates but are not limited to engine dynamometer testing of diesel engines, vehicle testing for emissions and performance: Harsha Nanjundaswamy Manager Diesel Engine Development Nanjundaswamy@FEV.COM FEV is a global engineering

  8. Multi-SISO Robust Crone Design for the Air Path Control of a Diesel Engine G. Colin*, P. Lanusse**, A. Louzimi*,

    E-Print Network [OSTI]

    Boyer, Edmond

    Multi-SISO Robust Crone Design for the Air Path Control of a Diesel Engine G. Colin*, P. Lanusse is the air path control of a turbocharged diesel engine with Exhaust Gas Recirculation (EGR). Simulation Model Control. Keywords: Engine control, Diesel engine, Robust control, MIMO system, Crone control

  9. Proceedings of the ASME 2013 International Design Engineering Technical Conferences & International Conference on Multibody Systems, Nonlinear Dynamics, and Control

    E-Print Network [OSTI]

    Hurst, Jonathan

    Proceedings of the ASME 2013 International Design Engineering Technical Conferences & International to reduce custom code. The following is a comprehensive robot control system designed for, but not limited successfully deployed on the aforementioned bipedal robot. 1 Copyright c 2013 by ASME #12;FIGURE 1. THE ROBOT

  10. 1 Copyright 2008 by ASME Proceedings of the ASME 2008 International Design Engineering Technical Conferences & Computers and

    E-Print Network [OSTI]

    1 Copyright © 2008 by ASME Proceedings of the ASME 2008 International Design Engineering Technical human ability to search through leveraging the power of computation to rapidly process information by ASME Evolutionary algorithms (EAs) are used in many applications of computational design synthesis due

  11. ENGINEERING

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

    ENGINEERING the Future of ENERGY Regional University Alliance National Energy Technology Laboratory Office of Research and Development The Future of Energy The time to redraw...

  12. Identification and Control of Nonlinear Harmonic Coupling for Pulsed Jet Injection

    E-Print Network [OSTI]

    M'Closkey, Robert T.

    The control of a jet injected into quiescent surroundings or into a crossflow is a fundamental problem], [2]. In turbine engines, for example, active control of the jet in crossflow has been shown to improve the spread and penetration of the jet into the crossflow for dilution jet injection [3

  13. Aerospace Engineering Aircraft and Spacecraft Design BS, MS Space Transportation and Exploration

    E-Print Network [OSTI]

    Su, Xiao

    Engineering BS, MS Chemical Engineering Biotechnology BS, MS Environmental Health and Safety Semiconductors and Polymers Processing Civil Engineering Construction BS, MS Environmental Geotechnical Structural and Environmental Engineering 408-924-3900 www.cee.sjsu.edu Computer Engineering 408-924-4150 www

  14. Human factors engineering control-room-design review/audit report: Palo Verde Nuclear Generating Station, Arizona Public Service Company

    SciTech Connect (OSTI)

    Savage, J.W.; Lappa, D.A.

    1981-10-09T23:59:59.000Z

    A human factors engineering design review of the Palo Verde control room simulator was performed at the site on September 15 through September 17, 1981. Observed human factors design discrepancies were given priority ratings. This report summarizes the team's observations of the control room design and layout and of the control room operators' interface with the control room environment. A list of the human factors strengths observed in the Palo Verde control room simulator is given.

  15. ON THE STRUCTURE AND STABILITY OF MAGNETIC TOWER JETS

    SciTech Connect (OSTI)

    Huarte-Espinosa, M.; Frank, A.; Blackman, E. G. [Department of Physics and Astronomy, University of Rochester, 600 Wilson Boulevard, Rochester, NY 14627-0171 (United States); Ciardi, A. [LERMA, Universite Pierre et Marie Curie, Observatoire de Paris, F-92195 Meudon (France); Hartigan, P. [Department of Physics and Astronomy, Rice University, 6100 S. Main, Houston, TX 77521-1892 (United States); Lebedev, S. V.; Chittenden, J. P. [Blackett Laboratory, Imperial College London, SW7 2BW London (United Kingdom)

    2012-09-20T23:59:59.000Z

    Modern theoretical models of astrophysical jets combine accretion, rotation, and magnetic fields to launch and collimate supersonic flows from a central source. Near the source, magnetic field strengths must be large enough to collimate the jet requiring that the Poynting flux exceeds the kinetic energy flux. The extent to which the Poynting flux dominates kinetic energy flux at large distances from the engine distinguishes two classes of models. In magneto-centrifugal launch models, magnetic fields dominate only at scales {approx}< 100 engine radii, after which the jets become hydrodynamically dominated (HD). By contrast, in Poynting flux dominated (PFD) magnetic tower models, the field dominates even out to much larger scales. To compare the large distance propagation differences of these two paradigms, we perform three-dimensional ideal magnetohydrodynamic adaptive mesh refinement simulations of both HD and PFD stellar jets formed via the same energy flux. We also compare how thermal energy losses and rotation of the jet base affects the stability in these jets. For the conditions described, we show that PFD and HD exhibit observationally distinguishable features: PFD jets are lighter, slower, and less stable than HD jets. Unlike HD jets, PFD jets develop current-driven instabilities that are exacerbated as cooling and rotation increase, resulting in jets that are clumpier than those in the HD limit. Our PFD jet simulations also resemble the magnetic towers that have been recently created in laboratory astrophysical jet experiments.

  16. Designing episode content for Design Squad, a new educational engineering children's television program : the human powered water pump as a design challenge

    E-Print Network [OSTI]

    Sadler, Joel A

    2006-01-01T23:59:59.000Z

    In recent years, problems have emerged in the realm of engineering and engineering education in the United States. Technology literacy is low, there are insufficient numbers of engineering students, and there are misconceptions ...

  17. Effect of Optical Brightening Agents and UV Protective Coating on Print Stability of Fine Art Substrates for Ink Jet

    E-Print Network [OSTI]

    Fleming, Paul D. "Dan"

    Center Sun Chemical Corporation ** Department of Paper Engineering, Chemical Engineering and Imaging: Ink jet 100% cotton papers with OBA: Hahnemühle Photo rag Sterling smooth Fine

  18. Mechanical & Aerospace Engineering

    E-Print Network [OSTI]

    in Mechanical Engineering at the School for Engineering of Matter, Transport and Energy, working in Dr. MarcusMechanical & Aerospace Engineering The atomization of a liquid jet by a high speed cross.S.E. degree in mechanical engineering from Amirkabir University of Technology in 2006 and M.S. degree

  19. Handling hovercrafts : designing a project curriculum to introduce girls to mechanical engineering

    E-Print Network [OSTI]

    Yang, Sandie (Sandie S.)

    2006-01-01T23:59:59.000Z

    The Women's Technology Program was created in MIT's Electrical Engineering and Computer Science department to expose girls to engineering topics and to encourage them to choose engineering majors in college. For the upcoming ...

  20. Jet Shapes and Jet Algorithms in SCET

    E-Print Network [OSTI]

    Stephen D. Ellis; Andrew Hornig; Christopher Lee; Christopher K. Vermilion; Jonathan R. Walsh

    2010-11-15T23:59:59.000Z

    Jet shapes are weighted sums over the four-momenta of the constituents of a jet and reveal details of its internal structure, potentially allowing discrimination of its partonic origin. In this work we make predictions for quark and gluon jet shape distributions in N-jet final states in e+e- collisions, defined with a cone or recombination algorithm, where we measure some jet shape observable on a subset of these jets. Using the framework of Soft-Collinear Effective Theory, we prove a factorization theorem for jet shape distributions and demonstrate the consistent renormalization-group running of the functions in the factorization theorem for any number of measured and unmeasured jets, any number of quark and gluon jets, and any angular size R of the jets, as long as R is much smaller than the angular separation between jets. We calculate the jet and soft functions for angularity jet shapes \\tau_a to one-loop order (O(alpha_s)) and resum a subset of the large logarithms of \\tau_a needed for next-to-leading logarithmic (NLL) accuracy for both cone and kT-type jets. We compare our predictions for the resummed \\tau_a distribution of a quark or a gluon jet produced in a 3-jet final state in e+e- annihilation to the output of a Monte Carlo event generator and find that the dependence on a and R is very similar.

  1. Haar LBP Gabor Jet boosting Gabor Jet

    E-Print Network [OSTI]

    Ai, Haizhou

    Boosting 1 boosting Haar LBP Gabor Jet boosting LBP Haar Gabor Jet boosting TP391. Further more, three kinds of local feature, Haar like feature, LBP histogram and Gabor jet are extracted, Haar like feature is more efficient for discriminating young and middle aged people, and Gabor Jet fits

  2. A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System

    E-Print Network [OSTI]

    Norwood, Zachary Mills

    2011-01-01T23:59:59.000Z

    working fluid to power a remote heat engine, as the fluidCHP options. Having a remote heat engine has many advantages

  3. Preparing for Transfer Biological Engineering

    E-Print Network [OSTI]

    Walter, M.Todd

    Environmental Engineering Game Design Industrial Systems & Information Technology Information Science MaterialsPreparing for Transfer Majors: Biological Engineering Chemical Engineering Civil Engineering Computer Science Electrical & Computer Engineering Engineering Physics Environmental Engineering

  4. Prime Movers of Globalization: The History and Impact of Diesel Engines and Gas Turbines

    E-Print Network [OSTI]

    Anderson, Byron P.

    2011-01-01T23:59:59.000Z

    jet airplanes. Gas turbines and diesel engines eventuallyof Diesel Engines and Gas Turbines By Vaclav Smil Reviewedof Diesel Engines and Gas Turbines. Cambridge, MA: The MIT

  5. A simple model for nanofiber formation by rotary jet-spinning

    E-Print Network [OSTI]

    Paula Mellado; Holly A. McIlwee; Mohammad R. Badrossamay; Josue A. Goss; L. Mahadevan; K Parker

    2012-02-12T23:59:59.000Z

    Nanofibers are microstructured materials that span a broad range of applications from tissue engineering scaffolds to polymer transistors. An efficient method of nanofiber production is Rotary Jet-Spinning (RJS), consisting of a perforated reservoir rotating at high speeds along its axis of symmetry, which propels a liquid, polymeric jet out of the reservoir orifice. These jets undergo stretching and solidify forming nanoscale fibers. We report a minimal scaling framework complemented by a semi-analytic and numerical approach to characterize the regimes of nanofiber production using RJS. Our theoretical model is validated for the fiber radius as a function of experimentally tunable parameters. We summarize our findings in a phase diagram for the design space of continuous nanofibers as a function of process parameters, in good agreement with experiments and with natural implications for the production rates as well as in the morphological quality of fibers.

  6. The Engineering Design of the 1.5 m Diameter Solenoid for the MICERFCC Modules

    SciTech Connect (OSTI)

    Wang, L.; Green, M.A.; Xu, F.Y.; Wu, H.; Li, L.K.; Gou, C.S.; Liu, C.S.; Han, G.; Jia, L.X.; Li, D.; Prestemon, S.O.; Virostek, S.P.

    2007-08-27T23:59:59.000Z

    The RF coupling coil (RFCC) module of MICE is where muonsthat have been cooled within the MICE absorber focus (AFC) modules arere-accelerated to their original longitudinal momentum. The RFCC moduleconsists of four 201.25 MHz RF cavities in a 1.4 meter diameter vacuumvessel. The muons are kept within the RF cavities by the magnetic fieldgenerated by a superconducting coupling solenoid that goes around the RFcavities. The coupling solenoid will be cooled using a pair of 4 K pulsetube cooler that will generate 1.5 W of cooling at 4.2 K. The magnet willbe powered using a 300 A two-quadrant power supply. This report describesthe ICST engineering design of the coupling solenoid forMICE.

  7. Drying: a comparison of radial jet reattachment and standard in-line jets

    E-Print Network [OSTI]

    Habetz, Darren Keith

    1991-01-01T23:59:59.000Z

    DRYING; A COMPARISON OF RADIAL JET REATTACHMENT AND STANDARD IN-LINE JETS A Thesis by DARREN KEITH HABETZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1991 Major Subject: Mechanical Engineering DRYING; A COMPARISON OF RADIAL JET REATTACHMENT AND STANDARD IN-LINE JETS A Thesis by DARREN KEITH HABETZ Approved as to style and content by: i2, 4. ~~. Robert H. Page (Chair...

  8. DICHOTOMY OF SOLAR CORONAL JETS: STANDARD JETS AND BLOWOUT JETS

    SciTech Connect (OSTI)

    Moore, Ronald L.; Cirtain, Jonathan W.; Sterling, Alphonse C.; Falconer, David A., E-mail: ron.moore@nasa.go [Space Science Office, VP62, Marshall Space Flight Center, Huntsville, AL 35812 (United States)

    2010-09-01T23:59:59.000Z

    By examining many X-ray jets in Hinode/X-Ray Telescope coronal X-ray movies of the polar coronal holes, we found that there is a dichotomy of polar X-ray jets. About two thirds fit the standard reconnection picture for coronal jets, and about one third are another type. We present observations indicating that the non-standard jets are counterparts of erupting-loop H{alpha} macrospicules, jets in which the jet-base magnetic arch undergoes a miniature version of the blowout eruptions that produce major coronal mass ejections. From the coronal X-ray movies we present in detail two typical standard X-ray jets and two typical blowout X-ray jets that were also caught in He II 304 A snapshots from STEREO/EUVI. The distinguishing features of blowout X-ray jets are (1) X-ray brightening inside the base arch in addition to the outside bright point that standard jets have, (2) blowout eruption of the base arch's core field, often carrying a filament of cool (T {approx} 10{sup 4} - 10{sup 5} K) plasma, and (3) an extra jet-spire strand rooted close to the bright point. We present cartoons showing how reconnection during blowout eruption of the base arch could produce the observed features of blowout X-ray jets. We infer that (1) the standard-jet/blowout-jet dichotomy of coronal jets results from the dichotomy of base arches that do not have and base arches that do have enough shear and twist to erupt open, and (2) there is a large class of spicules that are standard jets and a comparably large class of spicules that are blowout jets.

  9. DESIGN, PERFORMANCE, AND SUSTAINABILITY OF ENGINEERED COVERS FOR URANIUM MILL TAILINGS

    SciTech Connect (OSTI)

    Waugh, W. Jody

    2004-04-21T23:59:59.000Z

    Final remedies at most uranium mill tailings sites include engineered covers designed to contain metals and radionuclides in the subsurface for hundreds of years. Early cover designs rely on compacted soil layers to limit water infiltration and release of radon, but some of these covers inadvertently created habitats for deep-rooted plants. Root intrusion and soil development increased the saturated hydraulic conductivity several orders of magnitude above design targets. These covers may require high levels of maintenance to sustain long-term performance. Relatively low precipitation, high potential evapotranspiration, and thick unsaturated soils favor long-term hydrologic isolation of buried waste at arid and semiarid sites. Later covers were designed to mimic this natural soil-water balance with the goal of sustaining performance with little or no maintenance. For example, the cover for the Monticello, Utah, Superfund site relies on a thick soil-sponge layer overlying a sand-and-gravel capillary barrier to store precipitation while plants are dormant and on native vegetation to dry the soil sponge during the growing season. Measurements of both off-site caisson lysimeters and a large 3-ha lysimeter built into the final cover show that drainage has been well below a U.S. Environmental Protection Agency target of less than 3.0 mm/yr. Our stewardship strategy combines monitoring precursors to failure, probabilistic riskbased modeling, and characterization of natural analogs to project performance of covers for a range of possible future environmental scenarios. Natural analogs are needed to understand how ecological processes will influence cover performance, processes that cannot be predicted with short-term monitoring and existing numerical models.

  10. LWRS Fuels Pathway: Engineering Design and Fuels Pathway Initial Testing of the Hot Water Corrosion System

    SciTech Connect (OSTI)

    Dr. John Garnier; Dr. Kevin McHugh

    2012-09-01T23:59:59.000Z

    The Advanced LWR Nuclear Fuel Development R&D pathway performs strategic research focused on cladding designs leading to improved reactor core economics and safety margins. The research performed is to demonstrate the nuclear fuel technology advancements while satisfying safety and regulatory limits. These goals are met through rigorous testing and analysis. The nuclear fuel technology developed will assist in moving existing nuclear fuel technology to an improved level that would not be practical by industry acting independently. Strategic mission goals are to improve the scientific knowledge basis for understanding and predicting fundamental nuclear fuel and cladding performance in nuclear power plants, and to apply this information in the development of high-performance, high burn-up fuels. These will result in improved safety, cladding, integrity, and nuclear fuel cycle economics. To achieve these goals various methods for non-irradiated characterization testing of advanced cladding systems are needed. One such new test system is the Hot Water Corrosion System (HWCS) designed to develop new data for cladding performance assessment and material behavior under simulated off-normal reactor conditions. The HWCS is capable of exposing prototype rodlets to heated, high velocity water at elevated pressure for long periods of time (days, weeks, months). Water chemistry (dissolved oxygen, conductivity and pH) is continuously monitored. In addition, internal rodlet heaters inserted into cladding tubes are used to evaluate repeated thermal stressing and heat transfer characteristics of the prototype rodlets. In summary, the HWCS provides rapid ex-reactor evaluation of cladding designs in normal (flowing hot water) and off-normal (induced cladding stress), enabling engineering and manufacturing improvements to cladding designs before initiation of the more expensive and time consuming in-reactor irradiation testing.

  11. SLUDGE TREATMENT PROJECT ENGINEERED CONTAINER RETRIEVAL AND TRANSFER SYSTEM PRELMINARY DESIGN HAZARD AND OPERABILITY STUDY

    SciTech Connect (OSTI)

    CARRO CA

    2011-07-15T23:59:59.000Z

    This Hazard and Operability (HAZOP) study addresses the Sludge Treatment Project (STP) Engineered Container Retrieval and Transfer System (ECRTS) preliminary design for retrieving sludge from underwater engineered containers located in the 105-K West (KW) Basin, transferring the sludge as a sludge-water slurry (hereafter referred to as 'slurry') to a Sludge Transport and Storage Container (STSC) located in a Modified KW Basin Annex, and preparing the STSC for transport to T Plant using the Sludge Transport System (STS). There are six, underwater engineered containers located in the KW Basin that, at the time of sludge retrieval, will contain an estimated volume of 5.2 m{sup 3} of KW Basin floor and pit sludge, 18.4 m{sup 3} of 105-K East (KE) Basin floor, pit, and canister sludge, and 3.5 m{sup 3} of settler tank sludge. The KE and KW Basin sludge consists of fuel corrosion products (including metallic uranium, and fission and activation products), small fuel fragments, iron and aluminum oxide, sand, dirt, operational debris, and biological debris. The settler tank sludge consists of sludge generated by the washing of KE and KW Basin fuel in the Primary Clean Machine. A detailed description of the origin of sludge and its chemical and physical characteristics can be found in HNF-41051, Preliminary STP Container and Settler Sludge Process System Description and Material Balance. In summary, the ECRTS retrieves sludge from the engineered containers and hydraulically transfers it as a slurry into an STSC positioned within a trailer-mounted STS cask located in a Modified KW Basin Annex. The slurry is allowed to settle within the STSC to concentrate the solids and clarify the supernate. After a prescribed settling period the supernate is decanted. The decanted supernate is filtered through a sand filter and returned to the basin. Subsequent batches of slurry are added to the STSC, settled, and excess supernate removed until the prescribed quantity of sludge is collected. The sand filter is then backwashed into the STSC. The STSC and STS cask are then inerted and transported to T Plant.

  12. Profile of the Department of Design Engineering and the Focus on New Research Areas May 2014 Department of Design Engineering: Profile and Focus on New Research Areas

    E-Print Network [OSTI]

    Langendoen, Koen

    areincreasingly becoming producers (or `prosumers' or `co- designers'). They are now involved in the development

  13. Design and development of Stirling Engines for stationary power generation applications in the 500 to 3000 hp range. Subtask 1A report: state-of-the-art conceptual design

    SciTech Connect (OSTI)

    None

    1980-03-01T23:59:59.000Z

    The first portion of the Conceptual Design Study of Stirling Engines for Stationary Power Application in the 500 to 3000 hp range which was aimed at state-of-the-art stationary Stirling engines for a 1985 hardware demonstration is summarized. The main goals of this effort were to obtain reliable cost data for a stationary Stirling engine capable of meeting future needs for total energy/cogeneration sysems and to establish a pragmatic and conservative base design for a first generation hardware. Starting with an extensive screening effort, 4 engine types, i.e., V-type crank engine, radial engine, swashplate engine, and rhombic drive engine, and 3 heat transport systems, i.e., heat pipe, pressurized gas heat transport loop, and direct gas fired system, were selected. After a preliminary layout cycle, the rhombic drive engine was eliminated due to intolerable maintenance difficulties on the push rod seals. V, radial and swashplate engines were taken through a detailed design/layout cycle, to establish all important design features and reliable engine weights. After comparing engine layouts and analyzing qualitative and quantitative evaluation criteria, the V-crank engine was chosen as the candidate for a 1985 hardware demonstration.

  14. Engines

    SciTech Connect (OSTI)

    Enga, B.E.

    1981-08-25T23:59:59.000Z

    This invention relates to Stirling engines and to improved methods of operation whereby catalytic oxidation of a major proportion of the fuel takes place in the external combustor. An external combustion unit of a Stirling engine comprises a catalytic combustor having a thermally stable and oxidation resistant monolith made from and/or carrying a catalytic material and including a multiplicity of flow paths for catalytic combustion of combustible gases and injected fuel. The use of a catalytic combustor in accordance with this invention enables a Stirling or other engine fitted therewith to be used in areas such as mines and underwater installations where conventional flame combustion is impracticable or is controlled by stringent regulations.

  15. Design and implementation of a multiaxial loading capability during heating on an engineering neutron diffractometer

    SciTech Connect (OSTI)

    Benafan, O., E-mail: othmane.benafan@nasa.gov [NASA Glenn Research Center, Structures and Materials Division, Cleveland, Ohio 44135 (United States); Advanced Materials Processing and Analysis Center, Materials Science and Engineering Department, University of Central Florida, Orlando, Florida 32816 (United States); Padula, S. A. [NASA Glenn Research Center, Structures and Materials Division, Cleveland, Ohio 44135 (United States); Skorpenske, H. D.; An, K. [Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); Vaidyanathan, R. [Advanced Materials Processing and Analysis Center, Materials Science and Engineering Department, University of Central Florida, Orlando, Florida 32816 (United States)

    2014-10-01T23:59:59.000Z

    A gripping capability was designed, implemented, and tested for in situ neutron diffraction measurements during multiaxial loading and heating on the VULCAN engineering materials diffractometer at the spallation neutron source at Oak Ridge National Laboratory. The proposed capability allowed for the acquisition of neutron spectra during tension, compression, torsion, and/or complex loading paths at elevated temperatures. The design consisted of age-hardened, Inconel{sup ®} 718 grips with direct attachment to the existing MTS load frame having axial and torsional capacities of 100 kN and 400 N·m, respectively. Internal cooling passages were incorporated into the gripping system for fast cooling rates during high temperature experiments up to ~1000 K. The specimen mounting couplers combined a threaded and hexed end-connection for ease of sample installation/removal without introducing any unwanted loads. Instrumentation of this capability is documented in this work along with various performance parameters. The gripping system was utilized to investigate deformation in NiTi shape memory alloys under various loading/control modes (e.g., isothermal, isobaric, and cyclic), and preliminary results are presented. The measurements facilitated the quantification of the texture, internal strain, and phase fraction evolution in NiTi shape memory alloys under various loading/control modes.

  16. CE'2000, International Conference on Concurrent Engineering, Lyon, France, July 17-20 2000. Negotiation in collaborative assessment of design solutions

    E-Print Network [OSTI]

    Boyer, Edmond

    CE'2000, International Conference on Concurrent Engineering, Lyon, France, July 17-20 2000. 1 Negotiation in collaborative assessment of design solutions: an empirical study on a Concurrent Engineering/SM/CAO M0101/9 316 route de bayonne 31060 Toulouse cedex 03, France Abstract In Concurrent engineering

  17. Fusion Engineering and Design 41 (1998) 365370 Overview of ARIES-RS tokamak fusion power plant1

    E-Print Network [OSTI]

    Najmabadi, Farrokh

    1998-01-01T23:59:59.000Z

    Fusion Engineering and Design 41 (1998) 365­370 Overview of ARIES-RS tokamak fusion power plant1 sources of energy. The Starlite study has examined the ability of tokamak-based power plants to compete plant based on the reversed-shear mode of plasma operation, coupled to a fusion power core which uses

  18. Digital Nano-CMOS VLSI Design Courses in Electrical and Computer Engineering Through Open-Source/Free Tools

    E-Print Network [OSTI]

    Mohanty, Saraju P.

    -Source/Free Tools Elias Kougianos1, Saraju P. Mohanty2, and Priyadarsan Patra3 NanoSystem Design Laboratory (NSDL such as Digital Signal Pro- cessing, Control Systems, Communications, Microprocessors etc. Even though all they are parked are expensive. The skilled man power as a CAD support engineer (with system adminstration skills

  19. Department of Mechanical and Nuclear Engineering Spring 2011 Shell 1 -Battery Electric Vehicle Chassis and Body Design

    E-Print Network [OSTI]

    Demirel, Melik C.

    , Texas. The team performed better than our projected performance. The Battery Electric Vehicle achievedPENNSTATE Department of Mechanical and Nuclear Engineering Spring 2011 Shell 1 - Battery Electric Vehicle Chassis and Body Design Overview The team faced the challenging task of redesigning a previous

  20. Fusion Engineering and Design 41 (1998) 561567 Combination of a self-cooled liquid metal breeder blanket with

    E-Print Network [OSTI]

    1998-01-01T23:59:59.000Z

    , the cost of electricity. Self-cooled liquid metal breeder blankets have a high potential to meetFusion Engineering and Design 41 (1998) 561­567 Combination of a self-cooled liquid metal breeder blanket with a gas turbine power conversion system S. Malang a, *, H. Schnauder a , M.S. Tillack b

  1. 1 Copyright 2009 by ASME Proceedings of the 2009 ASME International Design Engineering Technical Conferences and Computers and

    E-Print Network [OSTI]

    Michalek, Jeremy J.

    in 2006 included 49% coal, 20% nuclear, 20% natural gas, 7% hydroelectric, 3% renewables, 2% oil, and 1 Conferences and Computers and Information in Engineering Conference IDETC/CIE 2009 August 30 to September 2, 2009, San Diego, California, USA DETC2009/DAC-87558 OPTIMAL PLUG-IN HYBRID ELECTRIC VEHCILE DESIGN

  2. IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS -FORMAL METHODS FOR EMBEDDED SYSTEMS DESIGN, NOVEMBER 2008 1 Formal Methods for Systems Engineering Behavior

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    2008 1 Formal Methods for Systems Engineering Behavior Models Charlotte Seidner and Olivier H. Roux on formal methods such as model checking since such techniques, however powerful and mature, are deemed too and integrating a formal verification tool within a development platform for system design for defense

  3. Nuclear Engineering and Design 257 (2013) 3144 Contents lists available at SciVerse ScienceDirect

    E-Print Network [OSTI]

    Demazière, Christophe

    Direct Nuclear Engineering and Design journal homepage: www.elsevier.com/locate/nucengdes Validation of PARCS/RELAP5 coupled codes against a load rejection transient at the Ringhals-3 NPP Alexander Agung , József a c t This article gives an account of the development and validation of the PARCS/RELAP5 model

  4. IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, VOL. 55, NO. 2, FEBRUARY 2008 485 Analog CMOS Design for Optical Coherence

    E-Print Network [OSTI]

    Barton, Jennifer K.

    photodetector and low noise differential transimpedance amplifier which converts the optical interference signal of the lock-in amplifier each include an analog mixer and switched-capacitor low-pass filter with an externalIEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, VOL. 55, NO. 2, FEBRUARY 2008 485 Analog CMOS Design

  5. Fusion Engineering and Design 87 (2012) 15501557 Contents lists available at SciVerse ScienceDirect

    E-Print Network [OSTI]

    Abdou, Mohamed

    2012-01-01T23:59:59.000Z

    Direct Fusion Engineering and Design journal homepage: www.elsevier.com/locate/fusengdes Diffusion bonding online 26 April 2012 Keywords: Beryllium F82H Diffusion Bonding HIP Intermetallic a b s t r a c prior to HIP bonding. The copper film acted a bonding aid to the RAFM steel, while the titanium acted

  6. Fusion Engineering and Design 88 (2013) 317326 Contents lists available at SciVerse ScienceDirect

    E-Print Network [OSTI]

    Abdou, Mohamed

    2013-01-01T23:59:59.000Z

    fusion power plants, includ- ing self-cooled lead­lithium (SCLL) [1], dual-coolant lead­lithium (DCLL) [2Fusion Engineering and Design 88 (2013) 317­326 Contents lists available at SciVerse Science. Sketchley Fusion Science & Technology Center, University of California at Los Angeles, USA h i g h l i g h

  7. Steps to an Ecology of Networked Knowledge and Innovation: Enabling new forms of collaboration among sciences, engineering, arts, and design

    E-Print Network [OSTI]

    Malina, Roger; Strohecker, Carol; LaFayette, Carol; Ione, Amy

    2013-07-31T23:59:59.000Z

    among scientists, engineers, artists, designers, and humanities researchers has been accelerating over the past decade. This has generated emerging practices that impact work and have potential to mitigate the difficult problems of our times... relationships 3. Forming safe, productive environments for hybrid individuals and practices INCLUDING: Spurring innovation through diversity 4. Communities addressing global issues and local solutions EMBEDDING: Public engagement and negotiation 5...

  8. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and

    E-Print Network [OSTI]

    Papalambros, Panos

    1 Copyright © 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical [6]. It is expected that by 2011, there will be 75 hybrid powertrain models available in the US driver for the purchase of #12;2 Copyright © 2009 by ASME hybrid or electric vehicles when the price

  9. 1 Copyright 20xx by ASME Proceedings of the ASME 2007 International Design Engineering Technical Conferences & Computers and

    E-Print Network [OSTI]

    Bueler, Ed

    1 Copyright © 20xx by ASME Proceedings of the ASME 2007 International Design Engineering Technical. One set of linear non- homogenous ODEs is solved for each power of the perturbation parameter. Each Expanded Features Unlimited Pages #12;2 Copyright © 20xx by ASME single DOF low immersion milling

  10. JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING / SEPTEMBER/OCTOBER 2001 / 287 DESIGN OF MINIMUM SEEPAGE LOSS CANAL SECTIONS WITH

    E-Print Network [OSTI]

    Chahar, B. R.

    conveyance systems for deliv- ering water for irrigation. The seepage loss from irrigation canals constitutesJOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING / SEPTEMBER/OCTOBER 2001 / 287 DESIGN OF MINIMUM other factors [International Commission on Irrigation and Drainage (ICID) (1967)]. Analytical solutions

  11. 28 / JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING / JANUARY/FEBRUARY 2000 DESIGN OF MINIMUM SEEPAGE LOSS CANAL SECTIONS

    E-Print Network [OSTI]

    Chahar, B. R.

    . INTRODUCTION Canals continue to be major conveyance systems for deliv- ering water for irrigation28 / JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING / JANUARY/FEBRUARY 2000 DESIGN OF MINIMUM in the alluvial plains of India. But the seepage loss from irrigation canals constitutes a substantial percentage

  12. School of Engineering Design, Technology, and Professional Programs Spring 2013 The Boeing Company 3 Fuel Slosh Amplification and Damping

    E-Print Network [OSTI]

    Demirel, Melik C.

    PENNSTATE School of Engineering Design, Technology, and Professional Programs Spring 2013 fit into a small manhole and must be able to be installed without piercing or drilling into the lining to determine a new natural tank frequency and to predict slosh forces. A CAD model of the slosh table

  13. Systems Modeling and Analysis Industrial Engineers are interested in optimizing the design and operation of complex systems

    E-Print Network [OSTI]

    Dyer, Bill

    Systems Modeling and Analysis Industrial Engineers are interested in optimizing the design and operation of complex systems composed of people and machines using information, materials and energy to produce goods and services. Analyzing such systems with information-driven models is an essential step

  14. Jet finding techniques at LHC

    E-Print Network [OSTI]

    BOUMEDIENE, D; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    Jet finding techniques at hadron colliders, including pile-up removal tricks, jet deconstruction, etc

  15. EngineeringEngineering the University of Tennesseethe University of Tennessee

    E-Print Network [OSTI]

    Tennessee, University of

    EngineeringMechanical Engineering Nuclear EngineeringNuclear Engineering Biosystems Engineering,develop, and design aircrafts research,develop, and design aircraft and spacecraft components and systems forand associated with propulsion,technologies associated with propulsion, airframe, avionics, aerodynamics, sensors

  16. Qualitative knowledge construction for engineering systems : extending the design structure matrix methodology in scope and procedure

    E-Print Network [OSTI]

    Bartolomei, Jason E

    2007-01-01T23:59:59.000Z

    This thesis presents a new modeling framework and research methodology for the study of engineering systems. The thesis begins with a formal conceptualization of Engineering Systems based upon a synthesis of various ...

  17. Fusion Engineering and Design 42 (1998) 555561 Scaling criteria for IFE liquid wall protection scheme simulation

    E-Print Network [OSTI]

    Abdou, Mohamed

    scheme simulation Alice Ying *, Mohamed Abdou Mechanical and Aerospace Engineering Department, Uni6ersity Science S.A. All rights reserved. PII S0920-3796(98)00135-5 #12;A. Ying, M. Abdou / Fusion Engineering

  18. Piston ring pack design effects on production spark ignition engine oil consumption : a simulation analysis

    E-Print Network [OSTI]

    Senzer, Eric B

    2007-01-01T23:59:59.000Z

    One of the most significant contributors to an engine's total oil consumption is the piston ring-pack. As a result, optimization of the ring pack is becoming more important for engine manufacturers and lubricant suppliers. ...

  19. Design and performance of a gas-turbine engine from an automobile turbocharger

    E-Print Network [OSTI]

    Tsai, Lauren (Lauren Elizabeth)

    2004-01-01T23:59:59.000Z

    The Massachusetts Institute of Technology Department of Mechanical Engineering teaches thermodynamics and fluid mechanics through a pair of classes, Thermal Fluids Engineering I & II. The purpose of this project was to ...

  20. Design, fabrication, and performance of a gas-turbine engine from an automobile turbocharger

    E-Print Network [OSTI]

    Padilla, Jorge, 1983-

    2005-01-01T23:59:59.000Z

    Thermal-Fluids Engineering is taught in two semesters in the Department of Mechanical Engineering at the Massachusetts Institute of Technology. To emphasize the course material, running experiments of thermodynamic plants ...

  1. Engineering Enzyme Specificity Using Computational Design of a Defined-Sequence Library

    E-Print Network [OSTI]

    Lippow, Shaun M.

    Engineered biosynthetic pathways have the potential to produce high-value molecules from inexpensive feedstocks, but a key limitation is engineering enzymes with high activity and specificity for new reactions. Here, we ...

  2. A custom-designed limited-angle actuator for an electromechanical engine valve drive Part I: Conceptual design

    E-Print Network [OSTI]

    Qiu, Yihui

    Research has shown that variable valve timing (VVT) can improve significantly the performance of internal combustion (IC) engines, including higher fuel efficiencies, lower emissions, and larger torque outputs at each point ...

  3. From Jet Counting to Jet Vetoes

    E-Print Network [OSTI]

    Peter Schichtel; Christoph Englert; Erik Gerwick; Tilman Plehn; Steffen Schumann

    2012-06-04T23:59:59.000Z

    The properties of multi-jet events impact many LHC analysis. The exclusive number of jets at hadron colliders can be described in terms of two simple patterns: staircase scaling and Poisson scaling. In photon plus jets production we can interpolate between the two patterns using simple kinematic cuts. The associated theoretical errors are well under control. Understanding such exclusive jet multiplicities significantly impacts Higgs searches and searches for supersymmetry at the LHC.

  4. Yield Asymmetry Design of Magnesium Alloys by Integrated Computational Materials Engineering

    SciTech Connect (OSTI)

    Li, Dongsheng; Joshi, Vineet V.; Lavender, Curt A.; Khaleel, Mohammad A.; Ahzi, Said

    2013-11-01T23:59:59.000Z

    Deformation asymmetry of magnesium alloys is an important factor on machine design in automobile industry. Represented by the ratio of compressive yield stress (CYS) against tensile yield stress (TYS), deformation asymmetry is strongly related to microstructure, characterized by texture and grain size. Modified intermediate phi-model, a polycrystalline viscoplasticity model, is used to predict the deformation behavior of magnesium alloys with different grain sizes. Validated with experimental results, integrated computational materials engineering is applied to find out the route in achieving desired asymmetry by thermomechanical processing. In some texture, for example, rolled texture, CYS/TYS is smaller than 1 under different loading directions. In some texture, for example, extruded texture, asymmetry is large along normal direction. Starting from rolled texture, the asymmetry will increased to close to 1 along rolling direction after compressed to a strain of 0.2. Our model shows that grain refinement increases CYS/TYS. Besides texture control, grain refinement can also optimize the yield asymmetry. After the grain size decreased to a critical value, CYS/TYS reaches to 1 since CYS increases much faster than TYS. By tailoring the microstructure using texture control and grain refinement, it is achievable to optimize yield asymmetry in wrought magnesium alloys.

  5. The Evolutionary Design Model (EDM) for the design of complex engineered systems : Masdar City as a case study

    E-Print Network [OSTI]

    Alfaris, Anas (Anas Faris)

    2009-01-01T23:59:59.000Z

    This thesis develops a framework for constructing an Evolutionary Design Model (EDM) that would enhance the design of complex systems through an efficient process. The framework proposed is generic and suggests a group of ...

  6. 3.1.2 Design Catalogues: An Efficient Search Approach for Improved Flexibility in Engineering Systems Design

    E-Print Network [OSTI]

    Cardin, Michel-Alexandre

    This paper proposes and demonstrates design catalogues as a computationally efficient method for identifying improved designs for complex technological systems. This new process significantly speeds up the analysis of ...

  7. Engineering

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGasReleaseSpeeches Energy Speeches RSS June 25,Engineering

  8. Engineering

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8, 2000Consumption SurveyEnergyphysicist Dave JohnsonEngineering

  9. Jet Reconstruction at RHIC

    E-Print Network [OSTI]

    Sevil Salur; for the STAR Collaboration

    2010-05-14T23:59:59.000Z

    Full jet reconstruction in heavy-ion collisions is expected to provide more sensitive measurements of jet quenching in hot QCD matter at RHIC. In this paper we review recent studies of jets utilizing modern jet reconstruction algorithms and their corresponding background subtraction techniques.

  10. Jet Physics at CDF

    E-Print Network [OSTI]

    Kenichi Hatakeyama; for the CDF Collaboration

    2007-12-12T23:59:59.000Z

    Recent results on jet physics at the Fermilab Tevatron $p\\bar p$ collider from the CDF Collaboration are presented. The main focus is put on results for the inclusive jet and dijet, $b\\bar b$ dijet, $W/Z+$jets and $W/Z+b$-jets production.

  11. Experimental characterization of the initial zone of an annular jet with a very large

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    an annular jet flow and a flow around a valve during the admission cycle of an explosion engine. The r value

  12. Advanced thermally stable jet fuels

    SciTech Connect (OSTI)

    Schobert, H.H.

    1999-01-31T23:59:59.000Z

    The Pennsylvania State University program in advanced thermally stable coal-based jet fuels has five broad objectives: (1) Development of mechanisms of degradation and solids formation; (2) Quantitative measurement of growth of sub-micrometer and micrometer-sized particles suspended in fuels during thermal stressing; (3) Characterization of carbonaceous deposits by various instrumental and microscopic methods; (4) Elucidation of the role of additives in retarding the formation of carbonaceous solids; (5) Assessment of the potential of production of high yields of cycloalkanes by direct liquefaction of coal. Future high-Mach aircraft will place severe thermal demands on jet fuels, requiring the development of novel, hybrid fuel mixtures capable of withstanding temperatures in the range of 400--500 C. In the new aircraft, jet fuel will serve as both an energy source and a heat sink for cooling the airframe, engine, and system components. The ultimate development of such advanced fuels requires a thorough understanding of the thermal decomposition behavior of jet fuels under supercritical conditions. Considering that jet fuels consist of hundreds of compounds, this task must begin with a study of the thermal degradation behavior of select model compounds under supercritical conditions. The research performed by The Pennsylvania State University was focused on five major tasks that reflect the objectives stated above: Task 1: Investigation of the Quantitative Degradation of Fuels; Task 2: Investigation of Incipient Deposition; Task 3: Characterization of Solid Gums, Sediments, and Carbonaceous Deposits; Task 4: Coal-Based Fuel Stabilization Studies; and Task 5: Exploratory Studies on the Direct Conversion of Coal to High Quality Jet Fuels. The major findings of each of these tasks are presented in this executive summary. A description of the sub-tasks performed under each of these tasks and the findings of those studies are provided in the remainder of this volume (Sections 1 through 5).

  13. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 International Design Engineering Technical Conferences &

    E-Print Network [OSTI]

    Williams II, Robert L.

    . Williams II Mechanical Engineering Department, Ohio University Athens, Ohio 45701 E-mail: williar4@ohio.edu Jim Zhu Electrical Engineering Department, Ohio University, Athens, Ohio 45701 E-mail: zhuj@ohio that the overall energy required by the cable-actuated robot is significantly lower than the energy input

  14. Transit Route Design Solved with Wireless Data Collection School of Civil and Environmental Engineering

    E-Print Network [OSTI]

    Libman, Lavy

    and Environmental Engineering University of New South Wales, Sydney, Australia d.rey@unsw.edu.au Khaled Almi.almiani@gmail.com Anastasios Viglas School of Information Technologies, University of Sydney, Sydney, Australia taso, Australia lavy.libman@unsw.edu.au S. Travis Waller School of Civil and Environmental Engineering University

  15. Daylighting design analysis. Project status report No. 2, 1 March-31 December 1980. [For pre-engineered metal buildings

    SciTech Connect (OSTI)

    Hallagan, W.B.; Lindsey, L.L.; Snyder, M.K.

    1980-01-01T23:59:59.000Z

    Detailed scale model studies regarding daylighting aspects of the passive/hybrid solar test building located at Butler Research Center in Grandview, MO are discussed. The product development program is aimed at providing passive/hybrid system building alternatives for commercial, industrial, and community purchasers of Butler's Landmark pre-engineered metal buildings. Occasioned by recognition, early in the project, that daylighting could strongly influence annual energy consumption in buildings of the targetted use types, scale models of several alternative design configurations, including that of the test building in Grandview, were built and tested. The major design alternatives, test results, and conclusions to date are described.

  16. Large-scale eddies and their role in entrainment in turbulent jets and wakes Jimmy Philip and Ivan Marusic

    E-Print Network [OSTI]

    Marusic, Ivan

    Large-scale eddies and their role in entrainment in turbulent jets and wakes Jimmy Philip and Ivan jets and wakes Jimmy Philipa) and Ivan Marusicb) Department of Mechanical Engineering, University

  17. Overview of engineering and agricultural design considerations of the Raft River soil-warming and heat-dissipation experiment

    SciTech Connect (OSTI)

    Stanley, N.E.; Engen, I.A.; Yrene, C.S.

    1982-04-01T23:59:59.000Z

    The engineering and agricultural considerations of the Raft River soil-warming and heat-dissipation experiment are presented. The experiment is designed to investigate the thermal characteristics of a subsurface pipe network for cooling power-plant condenser effluent, and crop responses to soil warming in an open-field plot. The subsurface soil-warming system is designed to dissipate approximately 100 kW of heat from circulating, 38/sup 0/C geothermal water. Summer operating conditions in the Raft River area, located on the Intermountain Plateau are emphasized. Design is based on the thermal characteristics of the local soil, the climate of the Raft River Valley, management practices for normal agriculture, and the need for an unheated control plot. The resultant design calls for 38-mm polyvinyl chloride (PVC) pipe in a grid composed of parallel loops, for dissipating heat into a 0.8-hectare experimental plot.

  18. Engineering Engineering

    E-Print Network [OSTI]

    Maroncelli, Mark

    T A C T i N f O r M A T i O N #12;4 engineering is the profession in which a knowledge of advancedEngineering Engineering Technology & A T P E N N S T A T E 2 0 1 0 ­ 2 0 1 1 #12;2 Join us at penn state! Since 1896, Penn State has been a leader in engineering and engineering technology education

  19. AGN Jet Mass Loading and Truncation by Stellar Winds

    E-Print Network [OSTI]

    Alexander Hubbard; Eric G. Blackman

    2006-04-28T23:59:59.000Z

    Active Galactic Nuclei can produce extremely powerful jets. While tightly collimated, the scale of these jets and the stellar density at galactic centers implies that there will be many jet/star interactions, which can mass-load the jet through stellar winds. Previous work employed modest wind mass outflow rates, but this does not apply when mass loading is provided by a small number of high mass-loss stars. We construct a framework for jet mass-loading by stellar winds for a broader spectrum of wind mass-loss rates than has been previously considered. Given the observed stellar mass distributions in galactic centers, we find that even highly efficient (0.1 Eddington luminosity) jets from supermassive black holes of masses $M_{BH} \\la 10^4M_{\\odot}$ are rapidly mass loaded and quenched by stellar winds. For $10^4 M_{\\odot}jets is independent of the jet's mechanical luminosity. Stellar wind mass-loading is unable to quench efficient jets from more massive engines, but can account for the observed truncation of the inefficient M87 jet, and implies a baryon dominated composition on scales $\\ga 2$ kpc therein even if the jet is initially pair plasma dominated.

  20. High Pt Jet Physics

    E-Print Network [OSTI]

    M. Martinez

    2006-10-13T23:59:59.000Z

    In this contribution, a comprehensive review of the main aspects of high $\\pt$ jet physics in Run II at the Tevatron is presented. Recent measurements on inclusive jet production are discussed using different jet algorithms and covering a wide region of jet transverse momentum and jet rapidity. Several measurements, sensitive to a proper description of soft gluon radiation and the underlying event in hadron collisions, are shown. Finally, high $\\pt$ prompt photon measurements and studies on the production of electroweak bosons in association with jets in the final state are discussed.

  1. Mechanical Engineering & Thermal Group

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Mechanical Engineering & Thermal Group The Mechanical Engineering (ME) & Thermal Group at LASP has · STOP (Structural, Thermal, and Optical Performance) analyses of optical systems Thermal engineers lead evolved with the complexity of instrument design demands, LASP mechanical engineers develop advanced

  2. Effects of piston design and lubricant selection on reciprocating engine friction

    E-Print Network [OSTI]

    Moughon, Luke (Luke Frank)

    2006-01-01T23:59:59.000Z

    The interaction between the piston and the liner in a reciprocating engine is of much interest because it affects reliability, noise, and efficiency. This study evaluated various changes to the piston skirt with the specific ...

  3. Nonlinear System Modeling, Optimal Cam Design, and Advanced System Control for an Electromechanical Engine Valve Drive

    E-Print Network [OSTI]

    Qiu, Yihui

    A cam-based shear force-actuated electromechanical valve drive system offering variable valve timing in internal combustion engines was previously proposed and demonstrated. To transform this concept into a competitive ...

  4. Piston ring design for reduced friction in modern internal combustion engines

    E-Print Network [OSTI]

    Smedley, Grant, 1978-

    2004-01-01T23:59:59.000Z

    Piston ring friction losses account for approximately 20% of the total mechanical losses in modern internal combustion engines. A reduction in piston ring friction would therefore result in higher efficiency, lower fuel ...

  5. Numerical and analytical studies of single and multiphase starting jets and plumes

    E-Print Network [OSTI]

    Wang, Ruo-Qian

    2014-01-01T23:59:59.000Z

    Multiphase starting jets and plumes are widely observed in nature and engineering systems. An environmental engineering example is open-water disposal of sediments. The present study numerically simulates such starting ...

  6. Pulse Jet Mixing Tests With Noncohesive Solids

    SciTech Connect (OSTI)

    Meyer, Perry A.; Bamberger, Judith A.; Enderlin, Carl W.; Fort, James A.; Wells, Beric E.; Sundaram, S. K.; Scott, Paul A.; Minette, Michael J.; Smith, Gary L.; Burns, Carolyn A.; Greenwood, Margaret S.; Morgen, Gerald P.; Baer, Ellen BK; Snyder, Sandra F.; White, Michael K.; Piepel, Gregory F.; Amidan, Brett G.; Heredia-Langner, Alejandro

    2012-02-17T23:59:59.000Z

    This report summarizes results from pulse jet mixing (PJM) tests with noncohesive solids in Newtonian liquid. The tests were conducted during FY 2007 and 2008 to support the design of mixing systems for the Hanford Waste Treatment and Immobilization Plant (WTP). Tests were conducted at three geometric scales using noncohesive simulants, and the test data were used to develop models predicting two measures of mixing performance for full-scale WTP vessels. The models predict the cloud height (the height to which solids will be lifted by the PJM action) and the critical suspension velocity (the minimum velocity needed to ensure all solids are suspended off the floor, though not fully mixed). From the cloud height, the concentration of solids at the pump inlet can be estimated. The predicted critical suspension velocity for lifting all solids is not precisely the same as the mixing requirement for 'disturbing' a sufficient volume of solids, but the values will be similar and closely related. These predictive models were successfully benchmarked against larger scale tests and compared well with results from computational fluid dynamics simulations. The application of the models to assess mixing in WTP vessels is illustrated in examples for 13 distinct designs and selected operational conditions. The values selected for these examples are not final; thus, the estimates of performance should not be interpreted as final conclusions of design adequacy or inadequacy. However, this work does reveal that several vessels may require adjustments to design, operating features, or waste feed properties to ensure confidence in operation. The models described in this report will prove to be valuable engineering tools to evaluate options as designs are finalized for the WTP. Revision 1 refines data sets used for model development and summarizes models developed since the completion of Revision 0.

  7. TECHNOLOGIES TO ENHANCE THE OPERATION OF EXISTING NATURAL GAS COMPRESSION INFRASTRUCTURE - MANIFOLD DESIGN FOR CONTROLLING ENGINE AIR BALANCE

    SciTech Connect (OSTI)

    Gary D. Bourn; Ford A. Phillips; Ralph E. Harris

    2005-12-01T23:59:59.000Z

    This document provides results and conclusions for Task 15.0--Detailed Analysis of Air Balance & Conceptual Design of Improved Air Manifolds in the ''Technologies to Enhance the Operation of Existing Natural Gas Compression Infrastructure'' project. SwRI{reg_sign} is conducting this project for DOE in conjunction with Pipeline Research Council International, Gas Machinery Research Council, El Paso Pipeline, Cooper Compression, and Southern Star, under DOE contract number DE-FC26-02NT41646. The objective of Task 15.0 was to investigate the perceived imbalance in airflow between power cylinders in two-stroke integral compressor engines and develop solutions via manifold redesign. The overall project objective is to develop and substantiate methods for operating integral engine/compressors in gas pipeline service, which reduce fuel consumption, increase capacity, and enhance mechanical integrity.

  8. Design of a sodium-cooled epithermal long-term exploration nuclear engine

    E-Print Network [OSTI]

    Yarsky, Peter

    2004-01-01T23:59:59.000Z

    To facilitate the mission to Mars initiative, the current work has focused on conceptual designs for transformational and enabling space nuclear reactor technologies. A matrix of design alternatives for both the reactor ...

  9. Jets at all scales

    E-Print Network [OSTI]

    F. Tavecchio

    2002-12-11T23:59:59.000Z

    I discuss recent developments in the field of relativistic jets in AGNs. After a brief review of our current knowledge of emission from Blazars, I discuss some consequences of the recent detection made by {\\it Chandra} of X-ray emission from extended jets. Finally I report some recent results on the problem of the connection between accretion and jets, study that in principle could shed light on the important issue of jet formation.

  10. ISEIndustrial Engineering

    E-Print Network [OSTI]

    Wang, Hai

    planning, software, and data mining techniques. USC's undergraduate ISE curricula pre- pare students and industrial ecology Transportation and logistics Optimization and logistics Collaborative engineering design

  11. Fusion Engineering and Design 41 (1998) 377383 ARIES-RS maintenance approach for high availability

    E-Print Network [OSTI]

    California at San Diego, University of

    1998-01-01T23:59:59.000Z

    . Louis, MO 63166-0516, USA Abstract The ARIES-RS tokamak power plant study developed a design approach as reported by Mau [3]. The ARIES-RS design is based on a commercial fusion power plant with a net electric on design features leading to high overall availability of the plant. The availability of a power station

  12. Computer-aided engineering system for design of sequence arrays and lithographic masks

    DOE Patents [OSTI]

    Hubbell, Earl A. (Mt. View, CA); Lipshutz, Robert J. (Palo Alto, CA); Morris, Macdonald S. (San Jose, CA); Winkler, James L. (Palo Alto, CA)

    1997-01-01T23:59:59.000Z

    An improved set of computer tools for forming arrays. According to one aspect of the invention, a computer system is used to select probes and design the layout of an array of DNA or other polymers with certain beneficial characteristics. According to another aspect of the invention, a computer system uses chip design files to design and/or generate lithographic masks.

  13. Fusion Engineering and Design 4950 (2000) 709717 Helium-cooled refractory alloys first wall and blanket

    E-Print Network [OSTI]

    Ghoniem, Nasr M.

    2000-01-01T23:59:59.000Z

    impurity control, and mechanical, nuclear and thermal hydraulics design, and waste disposal, tritium and safety design. Systems study results show that at a closed cycle gas turbine (CCGT) gross thermal team, we performed the preliminary design of the W-alloy FW/blanket concept. We projected

  14. Reforming a large lecture modern physics course for engineering majors using a PER-based design

    E-Print Network [OSTI]

    McKagan, S B; Wieman, C E

    2006-01-01T23:59:59.000Z

    We have reformed a large lecture modern physics course for engineering majors by radically changing both the content and the learning techniques implemented in lecture and homework. Traditionally this course has been taught in a manner similar to the equivalent course for physics majors, focusing on mathematical solutions of abstract problems. Based on interviews with physics and engineering professors, we developed a syllabus and learning goals focused on content that was more useful to our actual student population: engineering majors. The content of this course emphasized reasoning development, model building, and connections to real world applications. In addition we implemented a variety of PER-based learning techniques, including peer instruction, collaborative homework sessions, and interactive simulations. We have assessed the effectiveness of reforms in this course using pre/post surveys on both content and beliefs. We have found significant improvements in both content knowledge and beliefs compared...

  15. Design and development of Stirling engines for stationary-power-generation applications in the 500- to 3000-hp range. Phase I final report

    SciTech Connect (OSTI)

    None

    1980-10-01T23:59:59.000Z

    The first phase of the design and development of Stirling engines for stationary power generation applications in the 373 kW (500 hp) to 2237 kW (3000 hp) range was completed. The tasks in Phase I include conceptual designs of large Stirling cycle stationary engines and program plan for implementing Phases II through V. Four different heater head designs and five different machine designs were prepared in sufficient detail to select a design recommended for development in the near future. A second order analysis was developed for examining the various loss mechanisms in the Stirling engine and for predicting the thermodynamic performance of these engines. The predicted engine thermal brake efficiency excluding combustion efficiency is approximately 42% which exceeds the design objective of 40%. The combustion system designs were prepared for both a clean fuel combustion system and a two-stage atmospheric fluidized bed combustion system. The calculated combustion efficiency of the former is 90% and of the latter is 80%. Heat transport systems, i.e., a heat exchanger for the clean fuel combustion system and a sodium heat pipe system for coal and other nonclean fuel combustion systems were selected. The cost analysis showed that for clean fuels combustion the proposed 2237 kW (3000 hp) system production cost is $478,242 or $214/kW ($159/hp) which is approximately 1.86 times the cost of a comparable size diesel engine. For solid coal combustion the proposed 2237 kW (3000 hp) system production cost is approximately $2,246,242 which corresponds to a cost to power capacity ratio of $1004/kW ($749/hp). The two-stage atmospheric fluidized bed combustion system represents 81% of the total cost; the engine represents 14% depending on the future price differential between coal and conventional clean fuels, a short payback period of the proposed Stirling cycle engine/FBC system may justify the initial cost. (LCL)

  16. Civil Engineering Environmental Engineering

    E-Print Network [OSTI]

    Anderson, Jim

    ) : Southampton University #12;5 Canada Wharf Station, London Underground · An underground chamber in clay- building · Communication #12;12 THE CONSTRCUTIONARIUM First Year Student Field Class The students design. Renovation of old canals and tunnels Design of new storage reservoirs #12;17 Civil Engineering

  17. IAEA-CN-33/G 3-3 ENGINEERING DESIGN OF A

    E-Print Network [OSTI]

    Abdou, Mohamed

    RESEARCH FACILITY (FERF) BASED ON A TOROIDAL THETA PINCH M. ABDOU, R.J. BURKE, P.V. DAUZVARDIS, M. FOSS, S ENGINEERING RESEARCH FACILITY (FERF) BASED ON A TOROIDAL THETA PINCH. This paper describes two advanced toroidal theta-pinch devices which are being proposed for future construction. The Fusion Test Reactor (FTR

  18. Fusion Engineering and Design 4950 (2000) 719725 Heat deposition, damage, and tritium breeding

    E-Print Network [OSTI]

    Abdou, Mohamed

    characteristics in thick liquid wall blanket concepts M.Z. Youssef *, M.A. Abdou School of Engineering and Applied Elsevier Science B.V. All rights reserved. PII: S0920-3796(00)00179-4 #12;M.Z. Youssef, M.A. Abdou / Fusion

  19. Fusion Engineering and Design 3940 (1998) 651657 Analysis of thermomechanical interactions and properties of

    E-Print Network [OSTI]

    Abdou, Mohamed

    and properties of ceramic breeder blankets Alice Ying *, Mohamed Abdou Mechanical and Aerospace Engineering-3796/98/$19.00 © 1998 Elsevier Science S.A. All rights reserved. PII S0920-3796(98)00198-7 #12;A. Ying, M. Abdou

  20. Fusion Engineering and Design 83 (2008) 17881791 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Abdou, Mohamed

    2008-01-01T23:59:59.000Z

    Wongb , Mohamed Abdoua a University of California, Department of Mechanical and Aerospace Engineering of ongoing studies for magnetohydrodynamic (MHD) flows and heat transfer in the eutectic alloy lead. In the DCLL blanket, eutectic alloy lead­lithium (PbLi) circulates slowly (10 cm/s) as a breeder and coolant

  1. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Design Engineering Technical Conferences &

    E-Print Network [OSTI]

    Williams II, Robert L.

    Mechanical Engineering, Ohio University Athens, Ohio, USA williar4@ohio.edu ABSTRACT A capstan is simply to fully define the behavior. A more complex equation was developed and compared to the experimental data were driven under human force. In both situations however the concept is the same; there is a rope

  2. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences &

    E-Print Network [OSTI]

    Williams II, Robert L.

    in the past to analyze the human gait cycle. Due to inconsistency with theoretical and experimental results, Ph.D. Professor Department of Mechanical Engineering, Ohio University williar4@ohio.edu ABSTRACT a real human walking cycle. Kinematic and Dynamic analysis is discussed including results for joint

  3. Department of Engineering Design Spring 2012 Super 8...High Speed Paper Roll Alignment Set-Up

    E-Print Network [OSTI]

    Demirel, Melik C.

    Set-Up Overview High speed printing requires precise alignment. Printer engines are able to send paper through a system at speeds up to 550 ft/min. Within these systems, the paper may encounter a 90o turn bar that changes the direction of the paper. Operators within Xerox facilities must manually set up the turn bar

  4. Managing Design and Construction Using Systems Engineering for Use with DOE O 413.3A

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2008-09-23T23:59:59.000Z

    This Guide provides the Department of Energy's federal project directors with the methodologies and tools needed to plan, implement and complete assigned projects using a Systems Engineering approach in accordance with the requirements of DOE O 413.3A, Program and Project Management for the Acquisition of Capital Assets, dated 7-28-06. No cancellations.

  5. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 International Design Engineering Technical Conferences &

    E-Print Network [OSTI]

    Williams II, Robert L.

    of touch and forces in humans. Haptic interfaces provide force and touch feedback from virtual models, interact with animations, and feel the results. The overall system aims to increase teaching and learning, engineering mechanics courses, virtual reality, force feedback 1. INTRODUCTION Haptics is related to the sense

  6. ME 266P Mechanical Engineering Design Project Laboratory ABET EC2000 syllabus

    E-Print Network [OSTI]

    Ben-Yakar, Adela

    Management (Gantt Charts) 3. Product and Personal Liability of Engineers 4. Intellectual Property ­ Patents of three or four persons each. Each team receives a different project assignment (the team's stated of Course to Meeting the Requirements of Criterion 5: Relationship of the Course to ME Program Outcomes

  7. Microquasars and Jets

    E-Print Network [OSTI]

    Sylvain Chaty

    2005-06-01T23:59:59.000Z

    I present an overview of past, present and future research on microquasars and jets, showing that microquasars, i.e. galactic jet sources, are among the best laboratories for high energy phenomena. After remindind the analogy with quasars, I focus on one of the best microquasar representatives, probably the archetype, namely GRS 1915+105, and present accretion and ejection phenomena, showing that only a multi-wavelength approach allows a better understanding of phenomena occuring in these sources. Thereafter, I review jets at different scales: compact jets, large-scale jets, and the interactions between ejections and the surrounding medium. I finish by speaking about microblazars and ultraluminous X-ray sources.

  8. Computer-aided engineering system for design of sequence arrays and lithographic masks

    DOE Patents [OSTI]

    Hubbell, E.A.; Morris, M.S.; Winkler, J.L.

    1999-01-05T23:59:59.000Z

    An improved set of computer tools for forming arrays is disclosed. According to one aspect of the invention, a computer system is used to select probes and design the layout of an array of DNA or other polymers with certain beneficial characteristics. According to another aspect of the invention, a computer system uses chip design files to design and/or generate lithographic masks. 14 figs.

  9. Computer-aided engineering system for design of sequence arrays and lithographic masks

    DOE Patents [OSTI]

    Hubbell, E.A.; Lipshutz, R.J.; Morris, M.S.; Winkler, J.L.

    1997-01-14T23:59:59.000Z

    An improved set of computer tools for forming arrays is disclosed. According to one aspect of the invention, a computer system is used to select probes and design the layout of an array of DNA or other polymers with certain beneficial characteristics. According to another aspect of the invention, a computer system uses chip design files to design and/or generate lithographic masks. 14 figs.

  10. Computer-aided engineering system for design of sequence arrays and lithographic masks

    DOE Patents [OSTI]

    Hubbell, E.A.; Morris, M.S.; Winkler, J.L.

    1996-11-05T23:59:59.000Z

    An improved set of computer tools for forming arrays is disclosed. According to one aspect of the invention, a computer system is used to select probes and design the layout of an array of DNA or other polymers with certain beneficial characteristics. According to another aspect of the invention, a computer system uses chip design files to design and/or generate lithographic masks. 14 figs.

  11. Signatures of helical jets

    E-Print Network [OSTI]

    W. Steffen

    1996-11-18T23:59:59.000Z

    Observational signatures of helical jets can be found in some X-ray binaries (XRB), planetary nebulae, Herbig-Haro objects and in jets of active galactic nuclei (AGN). For the prototypical XRB SS433 a kinematic model of precessing jets has been applied very successfully and yielded a determination of its distance which is independent of conventional methods. In galactic jets precession appears to be the predominant mechanism for the production of observed helical signatures. In extragalactic jets other mechanisms seem to be similarly frequent. As a result of their strong dependence on the direction of motion with respect to the observer, special relativistic effects can be pronounced in helical jets. These have to be taken into account in AGN-jets and the newly discovered galactic sources which show apparent superluminal motion. Since the galactic superluminal jets are located in a binary system, jet precession is very likely in these sources. In this paper I review the main structural and kinematic signatures of helical jets and briefly mention the physical mechanisms behind them. I will present kinematic simulations of relativistic jets which are helically bent or have an internal helical flow field.

  12. Statement of work for system design and engineering of the SNF multi-canister overpack

    SciTech Connect (OSTI)

    Smith, K.E., Westinghouse Hanford

    1996-09-11T23:59:59.000Z

    This document describes the workscope for final design of the Multi-Canister Overpack to be used for long term storage of N Reactor fuel.

  13. Designing mobile digital library services for pre-engineering and technology literacy

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    D. Campbell, A collaborative digital library for children: AS. Weng, Designing a digital library for young children: AnJoint Conference on Digital Libraries (JCDL), Revised, (

  14. Jet substructure in ATLAS

    E-Print Network [OSTI]

    David W. Miller; for the ATLAS Collaboration

    2011-10-05T23:59:59.000Z

    Measurements are presented of the jet invariant mass and substructure in proton-proton collisions at sqrt{s} = 7 TeV with the ATLAS detector using an integrated luminosity of 37 pb-1. These results exercise the tools for distinguishing the signatures of new boosted massive particles in the hadronic final state. Two "fat" jet algorithms are used, along with the filtering jet grooming technique that was pioneered in ATLAS. New jet substructure observables are compared for the first time to data at the LHC. Finally, a sample of candidate boosted top quark events collected in the 2010 data is analyzed in detail for the jet substructure properties of hadronic "top-jets" in the final state. These measurements demonstrate not only our excellent understanding of QCD in a new energy regime but open the path to using complex jet substructure observables in the search for new physics.

  15. University , Engineering

    E-Print Network [OSTI]

    Zakharov, Leonid E.

    , Princeton Plasma Physics Laboratory Presented at Seminar of Department of Nuclear Engineering Massachusetts{AC020{76{CHO{3073. Leonid E. Zakharov, Department of Nuclear Engineering, MIT , Feb.26, 2001, Cambridge acting on the guide wall. This design concept opens opportunities for nuclear engineers and technologists

  16. civil EnginEEring College of Engineering and Mines

    E-Print Network [OSTI]

    Hartman, Chris

    civil EnginEEring College of Engineering and Mines Department of Civil and Environmental Engineering 907-474-7241 http://cem.uaf.edu/cee/ McE, MS Degrees Minimum Requirements for Degrees: 30 credits Civil engineers plan, design and supervise the construction of facilities essential to modern life

  17. Materials Science and Engineering B 117 (2005) 5361 Finite element analysis-based design of a fluid-flow control nano-valve

    E-Print Network [OSTI]

    Grujicic, Mica

    2005-01-01T23:59:59.000Z

    Materials Science and Engineering B 117 (2005) 53­61 Finite element analysis-based design A finite element method-based procedure is developed for the design of molecularly functionalized nano of a fluid-flow control nano-valve. The results obtained suggest that the finite element-based procedure

  18. Fusion Engineering and Design 23 (1993)251-297 251 North-Holland

    E-Print Network [OSTI]

    Ghoniem, Nasr M.

    1993-01-01T23:59:59.000Z

    commercial central station electric power plants have been conceptually designed and analyzed with an advanced reactor cavity concept to offer power plants with the highest level of safety assurance and a low foundation of existing technologies. The two IFE power plant designs repre- sent a wealth of information

  19. Fusion Engineering and Design 41 (1998) 337347 Prospects and issues for commercial fusion power systems

    E-Print Network [OSTI]

    California at San Diego, University of

    1998-01-01T23:59:59.000Z

    of fusion power concepts, most recently, the ARIES-RS conceptual power plant design based upon the tokamak requirements. We review the present status of this and other power plant designs, identify the key fusion R in an increasingly competi- tive and diverse energy marketplace. Based on a series of conceptual fusion power plant

  20. 155:427 CHEMICAL & BIOCHEMICAL ENGINEERING DESIGN AND ECONOMICS I FALL 2014 (3 credits)

    E-Print Network [OSTI]

    Muzzio, Fernando J.

    of the steps involved in the design and economic evaluation of chemical and biochemical processes. We elaborate and economic evaluation of their project forms their major task during the Spring semester design course (155, optimization and economic evaluation: planning, cost estimation, fixed capital investments, working capital

  1. Fusion Engineering and Design 73 (2005) 8393 Code development for analysis of MHD pressure drop reduction

    E-Print Network [OSTI]

    Abdou, Mohamed

    2005-01-01T23:59:59.000Z

    coolant blanket designs with Pb­17Li as a breeder and ferritic steel as a structural material [7 reduction in a liquid metal blanket using insulation technique based on a fully developed flow model Sergey of a liquid metal blanket using various insulation techniques. The code has specially been designed

  2. 1 Copyright 2011 by ASME Proceedings of the 2011 International Design Engineering Technical Conferences and

    E-Print Network [OSTI]

    Michalek, Jeremy J.

    cycle implications of design choices using traditional process-based life cycle assessment (LCA of economic input-output life cycle assessment (EIO-LCA) as a tool to support sustainable design by helpingE. The Economic Input-Output Life Cycle Assessment (EIO-LCA) is based upon publically available databases

  3. Fusion Engineering and Design 45 (1999) 145167 Exploring novel high power density concepts for attractive

    E-Print Network [OSTI]

    Abdou, Mohamed

    for attractive fusion systems Mohamed A. Abdou *, The APEX Team Mechanical and Aerospace Engineering Department-310-2060501; fax: +1- 310-8252599. E-mail address: abdou@fusion.ucla.edu (M.A. Abdou) 0920-3796/99/$ - see front matter © 1999 Elsevier Science S.A. All rights reserved. PII: S0920-3796(99)00018-6 #12;M.A. Abdou et al

  4. Fusion Engineering and Design 5152 (2000) 5571 Operating temperature windows for fusion reactor structural

    E-Print Network [OSTI]

    California at Los Angeles, University of

    2000-01-01T23:59:59.000Z

    Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6376, USA b Mechanical and Aerospace Engineering Department containing 8­12%Cr, V­4Cr­4Ti, and SiC/SiC composites), copper-base alloys (CuNiBe), tantalum-base alloys (e.g. Ta­8W­2Hf), niobium alloys (Nb­1Zr), and molybdenum and tungsten alloys. The results are compared

  5. Statement of work for sytem design and engineering of the spent nuclear fuel multi-cansiter overpack

    SciTech Connect (OSTI)

    Smith, K.E., Fluor Daniel Hanford

    1997-03-03T23:59:59.000Z

    This Statement of Work (SOW) describes the work scope for the preparation of the Phase 2 (final) design for the Multiple Canister Overpack (MCO) equipment. The MCO is to be used as the radiological containment device for the Spent Nuclear Fuel (SNF) assemblies, currently in wet storage in K East and West Basins, to be transported and stored in the Canister Storage Building (CSB) until final disposal facilities are made available. The engineering services contractor will be requested to provide reports, studies, analyses, engineering, drawings, specifications, estimates and schedules. The overall goal of this task order is to do the following: 1. Prepare a fabrication specification, ASME Code exception report, a packaging, shipping and warehouse plan, and detailed fabrication drawings of the MCO in accordance with the MCO Performance Specification (HNF-S-0426, Rev. 3) for procurement activities by the SNF MCO Subproject. 2. Establish and maintain a comment data base on the comments, resolutions, changes to the design of the MCO. 3. Support fabrication activities through the review of vendor fabrication drawings and shop test reports.

  6. Department of Mechanical Engineering Undergraduate programmes

    E-Print Network [OSTI]

    Burton, Geoffrey R.

    in one of five areas without giving up the breadth of knowledge needed by a practicing engineer. OurDepartment of Mechanical Engineering Undergraduate programmes Aerospace Engineering Automotive Engineering Mechanical Engineering Mechanical Engineering with Advanced Design & Innovation Mechanical

  7. IsThereAnEngineerInsideYou?Baine A Comprehensive Guide

    E-Print Network [OSTI]

    Wang, Xiaorui "Ray"

    in Engineering Chapter 5 Minorities in Engineering Chapter 6 "Wow!" Careers in Engineering Peace Corps Engineers Without Borders Imagineering Sports Equipment Design Music Engineering Green Energy Engineering Space

  8. Detailed design, fabrication and testing of an engineering prototype compensated pulsed alternator. Final report

    SciTech Connect (OSTI)

    Bird, W.L. Jr.; Woodson, H.H.

    1980-03-01T23:59:59.000Z

    The design, fabrication, and test results of a prototype compensated pulsed alternator are discussed. The prototype compulsator is a vertical shaft single phase alternator with a rotating armature and salient pole stator. The machine is designed for low rep rate pulsed duty and is sized to drive a modified 10 cm Beta amplifier. The load consists of sixteen 15 mm x 20 mm x 112 cm long xenon flashlamps connected in parallel. The prototype compulsator generates an open circuit voltage of 6 kV, 180 Hz, at a maximum design speed of 5400 rpm. At maximum speed, the inertial energy stored in the compulsator rotor is 3.4 megajoules.

  9. Understanding and predicting soot generation in turbulent non-premixed jet flames.

    SciTech Connect (OSTI)

    Wang, Hai (University of Southern California, Los Angeles, CA); Kook, Sanghoon; Doom, Jeffrey; Oefelein, Joseph Charles; Zhang, Jiayao; Shaddix, Christopher R.; Schefer, Robert W.; Pickett, Lyle M.

    2010-10-01T23:59:59.000Z

    This report documents the results of a project funded by DoD's Strategic Environmental Research and Development Program (SERDP) on the science behind development of predictive models for soot emission from gas turbine engines. Measurements of soot formation were performed in laminar flat premixed flames and turbulent non-premixed jet flames at 1 atm pressure and in turbulent liquid spray flames under representative conditions for takeoff in a gas turbine engine. The laminar flames and open jet flames used both ethylene and a prevaporized JP-8 surrogate fuel composed of n-dodecane and m-xylene. The pressurized turbulent jet flame measurements used the JP-8 surrogate fuel and compared its combustion and sooting characteristics to a world-average JP-8 fuel sample. The pressurized jet flame measurements demonstrated that the surrogate was representative of JP-8, with a somewhat higher tendency to soot formation. The premixed flame measurements revealed that flame temperature has a strong impact on the rate of soot nucleation and particle coagulation, but little sensitivity in the overall trends was found with different fuels. An extensive array of non-intrusive optical and laser-based measurements was performed in turbulent non-premixed jet flames established on specially designed piloted burners. Soot concentration data was collected throughout the flames, together with instantaneous images showing the relationship between soot and the OH radical and soot and PAH. A detailed chemical kinetic mechanism for ethylene combustion, including fuel-rich chemistry and benzene formation steps, was compiled, validated, and reduced. The reduced ethylene mechanism was incorporated into a high-fidelity LES code, together with a moment-based soot model and models for thermal radiation, to evaluate the ability of the chemistry and soot models to predict soot formation in the jet diffusion flame. The LES results highlight the importance of including an optically-thick radiation model to accurately predict gas temperatures and thus soot formation rates. When including such a radiation model, the LES model predicts mean soot concentrations within 30% in the ethylene jet flame.

  10. Mechanical engineering Department Seminar

    E-Print Network [OSTI]

    Research Center. Currently he is an Assistant Prof. in the Aerospace and Ocean Engineering DepartmentMechanical engineering Department Seminar Cornel Sultan Virginia Tech Design for Control

  11. Facility Area Engineer

    Broader source: Energy.gov [DOE]

    A successful candidate in this position will provide cross-cutting engineering oversight of the contractor's engineering programs, processes, and products through design procurement, construction,...

  12. Plasma jet ignition device

    DOE Patents [OSTI]

    McIlwain, Michael E. (Franklin, MA); Grant, Jonathan F. (Wayland, MA); Golenko, Zsolt (North Reading, MA); Wittstein, Alan D. (Fairfield, CT)

    1985-01-15T23:59:59.000Z

    An ignition device of the plasma jet type is disclosed. The device has a cylindrical cavity formed in insulating material with an electrode at one end. The other end of the cylindrical cavity is closed by a metal plate with a small orifice in the center which plate serves as a second electrode. An arc jumping between the first electrode and the orifice plate causes the formation of a highly-ionized plasma in the cavity which is ejected through the orifice into the engine cylinder area to ignite the main fuel mixture. Two improvements are disclosed to enhance the operation of the device and the length of the plasma plume. One improvement is a metal hydride ring which is inserted in the cavity next to the first electrode. During operation, the high temperature in the cavity and the highly excited nature of the plasma breaks down the metal hydride, liberating hydrogen which acts as an additional fuel to help plasma formation. A second improvement consists of a cavity insert containing a plurality of spaced, metal rings. The rings act as secondary spark gap electrodes reducing the voltage needed to maintain the initial arc in the cavity.

  13. Reverse engineering nature : design principles for flexible protection inspired by ancient fish armor of Polypteridae

    E-Print Network [OSTI]

    Reichert, Steffen H. (Steffen Heinz)

    2010-01-01T23:59:59.000Z

    This thesis is about designing structures that combine the dual functions of mechanical protection and flexibility of motion. The structures are inspired by principles observed in the ganoid squamation (scale assembly) of ...

  14. 16.810 Engineering Design and Rapid Prototyping, January (IAP) 2004

    E-Print Network [OSTI]

    De Weck, Olivier Ladislas, 1968-

    This course provides students with an opportunity to conceive, design and implement a product, using rapid protyping methods and computer-aid tools. The first of two phases challenges each student team to meet a set of ...

  15. Control Engineering Practice 10 (2002) 615624 Stabilizer design for industrial co-generation systems

    E-Print Network [OSTI]

    Marquez, Horacio J.

    2002-01-01T23:59:59.000Z

    design; HN optimization; Co-generation systems; Boiler control; Industrial applications 1. Introduction temperature. A simple diagram of the current boiler control system is shown in Fig. 2. From a control systems

  16. Sensible Organizations: A Sensor-Based System for Organizational Design and Engineering

    E-Print Network [OSTI]

    Olguin Olguin, Daniel

    We propose a sensor-based organizational design system capable of measuring social interactions in the workplace. By combining behavioral sensor data with other sources of information such as text-mined documents, surveys, ...

  17. Engineering applications of soil information system (sis): precision irrigation and drainage systems design

    E-Print Network [OSTI]

    Ceylan, Bilge Kagan

    2009-05-15T23:59:59.000Z

    that are currently employed in drainage design and construction were evaluated. A detailed market analysis was conducted with a focus on the industry stakeholders. A strategic strengths, weaknesses, opportunities and threats (SWOT) analysis was conducted...

  18. 1 Copyright 2007 by ASME Proceedings of the ASME 2007 International Design Engineering Technical Conferences&

    E-Print Network [OSTI]

    Mizoguchi, Riichiro

    of FMEA sheets. The designer can describe an integrated model of both functional knowledge and fault knowledge. Based on ontology mappings, automatic trans- formations of FMEA sheets can be realized

  19. ELSEVIER Nuclear Engineering and Design 146 (1994) 349-362 Engineed.ng

    E-Print Network [OSTI]

    Abdou, Mohamed

    breeder thermal transient under purge-line-break accidents Alice Y. Ying, Mohamed A. Abdou Mechanical-5493(93)E0241-B #12;350 A.Y. Y'mg,M.A. Abdou ~Nuclear Engineeringand Design146 (1994)349-362 6 7 4 5 1. It is hoped that #12;A.Y. Irmg,M.4. Abdou ~Nuclear Engineeringand Design 146 (1994) 349-362 351 Coolant C

  20. College of Engineering and Science ENGINEERING

    E-Print Network [OSTI]

    Stuart, Steven J.

    to · apply knowledge of math, science, and engi- neering · formulate and solve engineering problems · design81 College of Engineering and Science COLLEGE OF ENGINEERING AND SCIENCE The College of Engineering.clemson.edu. Minors Engineering and science students can complement their majors by selecting minor concentrations

  1. Electrical and Computer Engineering Electrical Engineering

    E-Print Network [OSTI]

    Heller, Barbara

    Electrical and Computer Engineering Electrical Engineering Department Website: www.iit.edu/engineering/ece Electrical engineering is concerned with the generation, transmission, and utilization of electrical energy and with the transmitting and processing of information. Electrical engineers are involved in the analysis, design, and pro

  2. Engineering a C-Phase quantum gate: optical design and experimental realization

    E-Print Network [OSTI]

    Andrea Chiuri; Chiara Greganti; Paolo Mataloni

    2012-04-12T23:59:59.000Z

    A two qubit quantum gate, namely the C-Phase, has been realized by exploiting the longitudinal momentum (i.e. the optical path) degree of freedom of a single photon. The experimental setup used to engineer this quantum gate represents an advanced version of the high stability closed-loop interferometric setup adopted to generate and characterize 2-photon 4-qubit Phased Dicke states. Some experimental results, dealing with the characterization of multipartite entanglement of the Phased Dicke states are also discussed in detail.

  3. Engineering Design Inspection and Administrative EDIA | U.S. DOE Office of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8, 2000Consumption SurveyEnergyphysicist DaveEngineering InstituteScience

  4. Biological Engineering Electives Biosystems Engineering

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    Control Theory (3) ECH 4323L Chemical Engineering Lab (1) ECH 4504 Chemical Kinetics & Reactor Design (4) ECH 4524 Heterogeneous Kinetics & Reactor Design (2) EGM 4313 Intermediate Engineering Analysis (4 Principles of Food Processing (4) FOS 4522C Seafood Technology (3) FOS 4722C Quality Control in Foods (3) FOS

  5. Jet-wall interaction effects on diesel combustion and soot formation.

    SciTech Connect (OSTI)

    Pickett, Lyle M.; Lopez, J. Javier (Polytechnic University of Valencia)

    2004-09-01T23:59:59.000Z

    The effects of wall interaction on combustion and soot formation processes of a diesel fuel jet were investigated in an optically-accessible constant-volume combustion vessel at experimental conditions typical of a diesel engine. At identical ambient and injector conditions, soot processes were studied in free jets, plane wall jets, and 'confined' wall jets (a box-shaped geometry simulating secondary interaction with adjacent walls and jets in an engine). The investigation showed that soot levels are significantly lower in a plane wall jet compared to a free jet. At some operating conditions, sooting free jets become soot-free as plane wall jets. Possible mechanisms to explain the reduced or delayed soot formation upon wall interaction include an increased fuel-air mixing rate and a wall-jet-cooling effect. However, in a confined-jet configuration, there is an opposite trend in soot formation. Jet confinement causes combustion gases to be redirected towards the incoming jet, causing the lift-off length to shorten and soot to increase. This effect can be avoided by ending fuel injection prior to the time of significant interaction with redirected combustion gases. For a fixed confined-wall geometry, an increase in ambient gas density delays jet interaction, allowing longer injection durations with no increase in soot. Jet interaction with redirected combustion products may also be avoided using reduced ambient oxygen concentration because of an increased ignition delay. Although simplified geometries were employed, the identification of important mechanisms affecting soot formation after the time of wall interaction is expected to be useful for understanding these processes in more complex and realistic diesel engine geometries.

  6. SYNCHROTRON RADIATION OF SELF-COLLIMATING RELATIVISTIC MAGNETOHYDRODYNAMIC JETS

    SciTech Connect (OSTI)

    Porth, Oliver; Fendt, Christian; Vaidya, Bhargav [Max Planck Institute for Astronomy, Koenigstuhl 17, 69117 Heidelberg (Germany); Meliani, Zakaria, E-mail: porth@mpia.de, E-mail: fendt@mpia.de [Centre for Plasma Astrophysics, K. U. Leuven, Celestijnenlaan 200B, 3001 Leuven (Belgium)

    2011-08-10T23:59:59.000Z

    The goal of this paper is to derive signatures of synchrotron radiation from state-of-the-art simulation models of collimating relativistic magnetohydrodynamic (MHD) jets featuring a large-scale helical magnetic field. We perform axisymmetric special relativistic MHD simulations of the jet acceleration region using the PLUTO code. The computational domain extends from the slow-magnetosonic launching surface of the disk up to 6000{sup 2} Schwarzschild radii allowing jets to reach highly relativistic Lorentz factors. The Poynting-dominated disk wind develops into a jet with Lorentz factors of {Gamma} {approx_equal} 8 and is collimated to 1{sup 0}. In addition to the disk jet, we evolve a thermally driven spine jet emanating from a hypothetical black hole corona. Solving the linearly polarized synchrotron radiation transport within the jet, we derive very long baseline interferometry radio and (sub-) millimeter diagnostics such as core shift, polarization structure, intensity maps, spectra, and Faraday rotation measure (RM) directly from the Stokes parameters. We also investigate depolarization and the detectability of a {lambda}{sup 2}-law RM depending on beam resolution and observing frequency. We find non-monotonic intrinsic RM profiles that could be detected at a resolution of 100 Schwarzschild radii. In our collimating jet geometry, the strict bimodality in the polarization direction (as predicted by Pariev et al.) can be circumvented. Due to relativistic aberration, asymmetries in the polarization vectors across the jet can hint at the spin direction of the central engine.

  7. Design and development of Stirling engines for stationary power generation applications in the 500 to 3000 horsepower range. First quarterly report

    SciTech Connect (OSTI)

    Not Available,

    1980-01-07T23:59:59.000Z

    This project is Phase I of a multi-phased program for the design and development of Stirling engines for stationary power generation applications in the 500 to 3000 horsepower range. Phase I comprises the conceptual design and associated cost estimates of a stationary Stirling engine capable of being fueled by a variety of heat sources, with emphasis on coal firing, followed by the preparation of a plan for implementing the design, fabrication and testing of a demonstration engine by 1985. The main effort in Phase I is the generation of state-of-the-art conceptual designs having greatest potential for prototype testing in 1985. The conceptual designs include a heat transport system for integrating the engine heater head with such energy sources as conventional oil/gas combustors, fluidized bed and other coal combustors, and combustors using coal-derived liquid fuels, and low/medium BTU gases. The heat transport systems being investigated include forced convection with gases or liquids, heat pipes, and direct firing. Currently, the leading choice for the solid fuel combustion system is the atmospheric fluidized bed, with low BTU gasification still a viable alternative. Both systems will continue to be evaluated further, but with greater emphasis on FBC. To date, there appears no clear choice among the heat pipe, forced convection gas loop, or direct firing as the prime candidate for the heat transport sub-system. Conceptual design and analysis will continue on all three sub-systems. Scale-up of United Stirling's P-75 engine to serve as the conceptual design of the 500 HP engine module is continuing. (LCL)

  8. Jet studies with STAR at RHIC: jet algorithms, jet shapes, jets in AA

    E-Print Network [OSTI]

    Jan Kapitan; for the STAR Collaboration

    2011-11-08T23:59:59.000Z

    Hard scattered partons are predicted to be well calibrated probes of the hot and dense medium produced in heavy ion collisions. Interactions of these partons with the medium w ill result in modifications of internal jet structure in Au+Au events compared to that observed in the p+p/d+Au reference. Full jet reconstruction is a promising tool to measu re these effects without the significant biases present in measurements with high-$\\pT$ hadrons. One of the most significant challenges for jet reconstruction in the heavy ion environment comes from the correct characterization of the background fluctuations. The jet mome ntum irresolution due to background fluctuations has to be understood in order to recover the correct jet spectrum. Recent progress in jet reconstruction methodology is discu ssed, as well as recent measurements from p+p, d+Au and Au+Au collisions at $\\sqrt{s_\\mathrm{NN}}=200 \\gev$.

  9. Design of a viable homogeneous-charge compression-ignition (HCCI) engine : a computational study with detailed chemical kinetics

    E-Print Network [OSTI]

    Yelvington, Paul E., 1977-

    2005-01-01T23:59:59.000Z

    The homogeneous-charge compression-ignition (HCCI) engine is a novel engine technology with the potential to substantially lower emissions from automotive sources. HCCI engines use lean-premixed combustion to achieve good ...

  10. Extragalactic jets on subpc and large scales

    E-Print Network [OSTI]

    F. Tavecchio

    2007-08-20T23:59:59.000Z

    Jets can be probed in their innermost regions (d~0.1 pc) through the study of the relativistically-boosted emission of blazars. On the other extreme of spatial scales, the study of structure and dynamics of extragalactic relativistic jets received renewed impulse after the discovery, made by Chandra, of bright X-ray emission from regions at distances larger than hundreds of kpc from the central engine. At both scales it is thus possible to infer some of the basic parameters of the flow (speed, density, magnetic field intensity, power). After a brief review of the available observational evidence, I discuss how the comparison between the physical quantities independently derived at the two scales can be used to shed light on the global dynamics of the jet, from the innermost regions to the hundreds of kpc scale.

  11. Hotspots, Jets and Environments

    E-Print Network [OSTI]

    M. J. Hardcastle

    2007-07-12T23:59:59.000Z

    I discuss the nature of `hotspots' and `jet knots' in the kpc-scale structures of powerful radio galaxies and their relationship to jet-environment interactions. I describe evidence for interaction between the jets of FRI sources and their local environments, and discuss its relationship to particle acceleration, but the main focus of the paper is the hotspots of FRIIs and on new observational evidence on the nature of the particle acceleration associated with them.

  12. The Innovation Shop Where students conceive, design,

    E-Print Network [OSTI]

    Mountziaris, T. J.

    , forces, energy and people ­ the world of mechanical and industrial engineers. Today's engineering generation of engineers College of Engineering Mechanical and Industrial Engineering Department "Engineers mechanical and industrial engineering projects ­ including all their design, modeling, manufacturing

  13. Improving the design process of the REgolith X-ray Imaging Spectrometer with model-based systems engineering

    E-Print Network [OSTI]

    Chodas, Mark A

    2014-01-01T23:59:59.000Z

    Traditional systems engineering processes have supported the development of many complex and successful space systems. However, some systems experience significant cost and schedule overruns. Systems engineering capabilities ...

  14. Jet physics in ALICE

    E-Print Network [OSTI]

    C. Loizides

    2005-10-12T23:59:59.000Z

    This work aims at the performance of the ALICE detector for the measurement of high-energy jets at mid-pseudo-rapidity in ultra-relativistic nucleus--nucleus collisions at LHC and their potential for the characterization of the partonic matter created in these collisions. In our approach, jets at high energy with E_{T}>50 GeV are reconstructed with a cone jet finder, as typically done for jet measurements in hadronic collisions. Within the ALICE framework we study its capabilities of measuring high-energy jets and quantify obtainable rates and the quality of reconstruction, both, in proton--proton and in lead--lead collisions at LHC conditions. In particular, we address whether modification of the jet fragmentation in the charged-particle sector can be detected within the high particle-multiplicity environment of the central lead--lead collisions. We comparatively treat these topics in view of an EMCAL proposed to complete the central ALICE tracking detectors. The main activities concerning the thesis are the following: a) Determination of the potential for exclusive jet measurements in ALICE. b) Determination of jet rates that can be acquired with the ALICE setup. c) Development of a parton-energy loss model. d) Simulation and study of the energy-loss effect on jet properties.

  15. Thermo-mechanical and neutron lifetime modeling and design of Be pebbles in the neutron multiplier for the LIFE engine

    SciTech Connect (OSTI)

    DeMange, P; Marian, J; de Caro, M S; Caro, A

    2009-03-16T23:59:59.000Z

    Concept designs for the laser-initiated fusion/fission engine (LIFE) include a neutron multiplication blanket containing Be pebbles flowing in a molten salt coolant. These pebbles must be designed to withstand the extreme irradiation and temperature conditions in the blanket to enable a safe and cost-effective operation of LIFE. In this work, we develop design criteria for spherical Be pebbles on the basis of their thermomechanical behavior under continued neutron exposure. We consider the effects of high fluence/fast flux on the elastic, thermal and mechanical properties of nuclear-grade Be. Our results suggest a maximum pebble diameter of 30 mm to avoid tensile failure, coated with an anti-corrosive, high-strength metallic shell to avoid failure by pebble contact. Moreover, we find that the operation temperature must always be kept above 450 C to enable creep to relax the stresses induced by swelling, which we estimate to be at least 16 months if uncoated and up to six years when coated. We identify the sources of uncertainty on the properties used and discuss the advantages of new intermetallic beryllides and their use in LIFE's neutron multiplier. To establish Be-pebble lifetimes with improved confidence, reliable experiments to measure irradiation creep must be performed.

  16. Engineering Engineering

    E-Print Network [OSTI]

    Keinan, Alon

    of global poverty and sustainability". An ESW course, offered by Civil & Environmental Engineering, teaches as an alternative to diesel fuel, storm-water management in the Virgin Islands, and construction of a bridge here

  17. Sandia Energy - New Conceptual Insights into Diesel Engine Fuel...

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

    at various ambient pressure and temperature conditions. The diagram suggests dense-fluid jet presence (grey region) under diesel-engine conditions (highlighted area) without drop...

  18. Fusion Engineering and Design 23 (1993) 173-200 173 North-Holland

    E-Print Network [OSTI]

    Ghoniem, Nasr M.

    1993-01-01T23:59:59.000Z

    fission power plants, with MPDs ranging from 500 to 1000 kWe/tonne and competitive cost of en- ergy. Other-field-pinch fusion-power-core design Clement P.C. Wong a, Steven P. Grotz h, Farrokh Najmabadi b, James P. Blanchard Research, University of California, Los Angeles, CA 90024-1597, USA c Canadian Fusion Fuels Technology

  19. Fusion Engineering and Design 80 (2006) 7998 Advanced power core system for the

    E-Print Network [OSTI]

    California at San Diego, University of

    2006-01-01T23:59:59.000Z

    operating parameters. © 2005 Elsevier B.V. All rights reserved. Keywords: Advanced tokamak; Power plant. Introduction The ARIES-AT power plant was evolved to assess and highlight the benefit of advanced technologies understanding and modeling capabili- ties on the performance of advanced tokamak power plants [1]. The design

  20. Department of Computer Science & Engineering Scheduling Design and Verification for Open Soft Real-time Systems

    E-Print Network [OSTI]

    Smart, William

    Soft Real-time Systems Authors: Robert Glaubius, Terry Tidwell,William D. Smart, and Christopher Gill and verification approach for open soft real-time systems, that can use different decision models, e.g., a Markov of scheduling policies for open soft real-time systems. #12;Scheduling Design and Verification for Open Soft