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    REsumen Del Reporte

    Uploaded by

    Ezequiel Ruggiero
    Es el ppt del reporte anterior

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    © All Rights Reserved
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    REsumen Del Reporte

    Uploaded by

    Ezequiel Ruggiero
    27 views12 pages
    Es el ppt del reporte anterior

    Original Title

    REsumen del reporte

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    © © All Rights Reserved

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    PDF, TXT or read online from Scribd

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    Es el ppt del reporte anterior

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    27 views12 pages

    REsumen Del Reporte

    Uploaded by

    Ezequiel Ruggiero
    Es el ppt del reporte anterior

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 12

    Improving the System

    Life of Basic Oxygen and


    Electric Arc Furnace
    Hoods, Roofs and Side
    Vents

    Lawrence C. Boyd Jr.


    Manager, Core Programs
    Energy Industries of Ohio

    Cleveland, OH
    January 23, 2008

    January 23, 2008 1


    EAF / BOF Project
    @ Funding:
    @ US DOE via the ODOD-Energy Office
    @ Participants – EIO, Oak Ridge National Lab, Ohio Steel Cos.
    @ Objective
    @ Industry Defined Life of Water Cooled Components in Steel
    Manufacture as a Roadblock to Increased Efficiency/Productivity.
    @ Goal: Improve System Life EAF/BOF Equipment
    @ Targets:
    @ 2 x Service Life
    @ 20% Life Cycle Cost Improvement
    @ 95% Reduction in Routine Maintenance

    January 23, 2008 2


    Work Plan
    @ Survey of Current Practice
    @ Project Participants
    @ AISE 1999 Survey
    @ Plant Visits and Interviews
    @ Results
    @ Industry still uses Carbon Steel
    and Low Alloy Steel
    @ Repairs Still done by cutting out
    damaged sections and welding

    January 23, 2008 3


    Work Plan
    @ Identification of Alternatives
    @ Coatings
    @ Industry View: Too Fragile for This Service

    @ Weld Overlays
    @ Industry View: Proven Options Already Exist

    @ New Alloys
    @ Industry View: Best Solution if Alternatives Can
    Be Identified

    January 23, 2008 4


    Work Plan
    @ Performance Modeling by ORNL
    @ C.S. , CrMo , Selected Alloys
    @ Property Measurements (200-1200oF)
    @ Modeling
    @ Heat Transfer
    @ Stress
    @ Corrosion
    @ Thermal Fatigue

    January 23, 2008 5


    Modeling Results

    Heat Transfer Modeling

    January 23, 2008 6


    Modeling Results

    Thermo-Mechanical Stress Modeling

    January 23, 2008 7


    Modeling Results

    Corrosion Modeling

    January 23, 2008 8


    Field Test Candidate Identified
    @ Aluminum Bronze Alloy - AmeriBronze®
    @ Composition Similar to C 61300 Series
    ~ 91%Cu, 6.5 Al, 2.5 Fe, 0.25 Sn
    @ Property / Modeling Results Overview
    @ Acceptable Mechanical Properties
    @ Better Heat Transfer – ~3 x C.S.
    @ Corrosion Resistance – ~6 x C.S.
    @ Lower Thermo-Mechanical Stress in Transient
    and Steady State Heat Transfer Regimes
    @ Better Thermal Fatigue Resistance Factor
    (M = k (ys) (1 – ν) / αE )

    January 23, 2008 9


    REP Equipment Schematic

    January 23, 2008 10


    REP Performance History
    Carbon Steel
    @ Skirt
    @ ~ 20 Month Life
    @ ~ 80 Shutdowns for Repairs
    @ Flux Chute
    @ ~ 12 Month Life
    @ ~ 20 Additional Repairs
    @ REP was about to order a skirt
    agreed to order AmeriBronze
    January 23, 2008 11
    Contacts
    @ Larry Boyd
    @ Energy Industries of Ohio
    @ 216-323-1898 (Phone); 216-662-6052 (Fax)
    @ boyd@energyinohio.com

    @ James Vogt
    @ Republic Engineered Products
    @ 440-277-2370 (Phone); 440-277-3576 (fax)
    @ jvogt@republicengineered,com

    @ Dr. Vinod Sikka


    @ Oak Ridge National Laboratory
    @ 865-574-5112 (Phone); 856-574-4357 (fax)
    @ sikkavk@ornl.gov

    @ Gabe Carinci
    @ AmeriFab, Inc.
    @ 317-231-0100 (Phone); 317-231-0144 (Fax)
    @ gcarinci@amerifabinc.com

    January 23, 2008 12

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