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Parts

Gas Turbine Parts Lifetime Extension Clinic

vacuum heat treat furnace, gas turbine parts lifetime extension

Mechanical Dynamics & Analysis (MD&A) can extend the service life of gas turbine components whose OEM service limit has passed or whose configuration is no longer suitable to operate. Significant savings can be realized by opting for lower-cost repaired spares instead of new parts. Elevated temperatures take a big toll on gas turbine components. Repair […]

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Triplet Type Main Stop Valve Upgrade

The MD&A Parts Division Patented Triplet Type Main Stop Valve upgrade reduces solid particle erosion (SPE), thereby increasing valve component life! View the video on the advantages of the main stop valve upgrade and for additional information call MD&A Parts Division today at (518) 885-3199 or use our Contact form.  Solid Particle Erosion (SPE) occurs […]

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Combined Cycle Overhaul with our One-Stop Shop

Combined Cycle Overhaul

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 […]

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Steam Turbine Nozzle Chambers and Casing Weld Repairs

Repaired Flow Guide Installed and Upper Half Casing Ready for Final Assembly Check

Mechanical Dynamics & Analysis (MD&A) performed Nozzle Chambers and Casing Weld Repairs on a 580 MW Westinghouse® Steam Turbine and returned the equipment ahead of contract schedule. Upon initial examination, significant issues were revealed with the HP inner casing, nozzle chambers, and selected components, all critical for proactive maintenance and long-term operation. This 3600-rpm machine […]

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Rapid Steam Turbine Replacement

Figure 6. IP/LP Rotor Assembly Installed at the Power Plant

Mechanical Dynamics & Analysis (MD&A) completed a comprehensive and rapid steam turbine replacement project in record time after the unit experienced a catastrophic failure event, requiring the replacement of the entire steam turbine and auxiliaries. THE CHALLENGE:   The subject power plant is an important electrical generating facility in the country it is located within.  Returning the […]

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Portable In-Situ Air Flow Test Stand

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 […]

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Hydrogen Seal Upgrades

Hydrogen Seal Upgrades

Mechanical Dynamics & Analysis (MD&A) upgraded a customer’s hydrogen seals for a 7FH2 generator located in Colombia. Many units in the combined cycle setup, which can be comprised of two MS7001FA gas turbines and a D11 steam turbine, are also equipped with 7FH2 generators. Many of these machines have unbolted babbitted hydrogen seals. If there’s […]

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Collector Ring Refurbishment Project

Refurbished Collector Rings

Mechanical Dynamics & Analysis (MD&A) experts recently completed a collector ring refurbishment project utilizing our stationary shaft machining equipment at a customer’s plant.  All work was completed by MD&A’s Machining Services Division. MD&A’s in-place stationary shaft machining process allowed for repair of damaged collector rings on-site. As-found inspections revealed that collector rings had approximately .030” […]

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