Janis Davis
Articles By

Janis Davis

  • Petro Vietnam’s Rapid Bearing Repair and Journal Machining

    Sponsored by:
    MD&A

    At Petro Vietnam Vung Ang 1 Thermal Power Plant, Mechanical Dynamics & Analysis (MD&A) experts repaired damaged babbitt bearings and refurbished journals for a customer on a steam turbine-generator with the unit in an assembled (rotor-in) condition. The unit was forced from service due to turbine bearing failures. In a quick turnaround, journal refurbishment occurred in the […]

  • Coordinated 7FA Hot Gas Path and 7FH2 Generator Inspection and Repair

    Sponsored by:
    MD&A

    Mechanical Dynamics & Analysis (MD&A) completed a carefully coordinated 7FA gas turbine hot gas path inspection, 7FH2 generator inspection and repairs in just 19 days, providing all services, labor, and parts. The customer contracted MD&A to perform the inspection and emergent repairs on a tight schedule. Our industry experts completed the work on time maintaining full customer communication […]

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  • Portable In-Situ Air Flow Test Stand – Oct. 2021

    Sponsored by:
    POWER Magazine

    Mechanical Dynamics & Analysis (MD&A) announces Portable In-Situ Air Flow Test stand capabilities that allow for immediate and conclusive data on gas turbine nozzle performance. This flow test apparatus provides efficient gas turbine air/gas flow analysis and is offered by MD&A Fuel Nozzle Services Division/ Integrated Combustion Solutions (ICS). The typical call to action is a control room combustion […]

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  • Combined Cycle Overhaul with our One-Stop Shop – Sept. 2021

    Sponsored by:
    POWER Magazine

    Mechanical Dynamics & Analysis (MD&A) recently completed an overhaul at a combined cycle plant consisting of gas and steam turbine majors, a steam turbine generator minor inspection, and a gas turbine generator major inspection. The customer combined scope was the largest single project implemented at the site since the combined cycle plant was commissioned. MD&A sent all 3 rotors from […]

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  • Co-Gen Turbine Controls Retrofit – Nov. 2021

    Sponsored by:
    POWER Magazine

    Mechanical Dynamics & Analysis’ Control Systems Division (MD&A Control Systems) replaced an industrial co-gen turbine’s original mechanical-hydraulic (MHC) controls with an electronic governor, electro-hydraulic trip system and self-contained control valve actuator. The primary drivers for the project were the operator’s desire to increase the long-term maintainability and reliability by replacing the MHC components that had […]

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  • Global Multiyear Major Outages

    Sponsored by:
    MD&A

    Mechanical Dynamics & Analysis (MD&A) recently performed multiyear outages for a customer on several different units in Colombia. First unit:  This was a major outage and generator test & inspection. In addition, this unit was retrofitted with a new rotor, bearings, and steam path components that required machining, including installing and fitting new nozzles. MD&A […]

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