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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

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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Actualizaciones de los sellos de hidrógeno

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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Gas Turbine and Steam Turbine Services, Parts & Repairs

About MD&A With a rich 35 years of experience in the power generation industry, Mechanical Dynamics & Analysis is the most trusted company for turbine-generator needs. Our commitment to excellence has earned customer trust for all turbine-generator needs. We focus on delivering consistent quality and value with fast response, superior communications, and innovative solutions. MD&A […]

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Turbine Bucket Redesign & Modification

Turbine Bucket Redesign

Mechanical Dynamics & Analysis (MD&A) performed a turbine bucket redesign & modification on a variable-speed steam turbine. The unit is an essential prime mover for a compressor/chiller. The rotor was sent to MD&A’s Turbine-Generator Repair Facility in St. Louis, MO for standard blast cleaning, NDE and visual inspection. Inspection Stage 3 L-0 stage buckets and […]

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Fuel Nozzle End Cover Insert Life Extension

Fuel Nozzle End Cover Insert

ICS (Integrated Combustion Solutions) / MD&A Fuel Nozzle Services Division can extend the service life of a Fuel Nozzle End Cover. The life expectancy of an end cover increases from the OEM claim of 48,000 hrs. to over 125,000 hrs. with a new maximum of 7 insert replacements per cover. A braze-cracking issue can occur […]

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Steam Turbine Valve Actuator Diagnostics for Predictive Maintenance

Main Stop Valve

M&DA Control Systems recently analyzed Steam Turbine Valve Actuator Diagnostics to establish a plan for Predictive Maintenance.  Hysteresis Test data was gathered and utilized to establish an in-service predictive maintenance practice. This practice has allowed the customer to optimize their unit’s operational availability while reducing their maintenance costs. The predictive approach allows savings to be […]

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Mechanical Dynamics & Analysis LLC | 19 British American Blvd., Latham, NY 12110 | P (518) 399-3616 | F (518) 399-3929