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Gas Turbine

7FA.04 (AGP) Gas Turbine Component Repairs – Enhancing Performance and Cost Savings

Mechanical Dynamics & Analysis (MD&A) is a leading provider of gas turbine component repairs. With a focus on maintaining optimal performance and reducing operating costs for our customers. MD&A has developed a range of repair processes for 7FA.04 advanced gas path (AGP) components. Significant savings can be realized by opting for lower-cost repaired spares instead […]

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Frame 5 Rotor Reconditioning and Rotor Life Assessment

Most large pulp and paper mills require vast amounts of reliable, base-load electric power. They also depend on steady high-temperature air and steam for their process operations. A large mill anticipated its current General Electric® Frame 5 gas turbine’s rotor would reach the end of its life cycle in 2024. A replacement would be needed. […]

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MD&A Completes Significant Combined-Cycle Inspection and Overhaul

Combined-Cycle Inspection and Overhaul

Hermiston Generating Plant For Hermiston Generating Plant in Oregon, Mechanical Dynamics & Analysis (MD&A) completed a complex, multiple-component combined-cycle major inspection and overhaul project that successfully brought both turbines and both generators back to full and reliable operations. The 474 MW combined-cycle plant was depending on the complete and efficient renewal of its Unit 2 […]

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Fuel Nozzle End Cover Insert Life Extension

Fuel Nozzle End Cover Insert

MD&A Fuel Nozzle Services Division can extend the service life of a Fuel Nozzle End Cover Insert. 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 with F-Class DLN 2.0 […]

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Gas Turbine Exhaust Temperature Spreads

7FA.03+ upgrade

What is an exhaust temperature spread, and why is it so important to monitor and take appropriate action when an exhaust temperature spread develops? An exhaust temperature spread refers to a high differential in readings between the thermocouples placed radially around the exhaust of a gas turbine. The worst exhaust temperature spreads occur when the […]

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Onsite Seal Services Video

On-site seal services

MD&A’s highly skilled technicians perform custom installations of packing rings and tip seals on-site using a unique mobile containerized machine shop. Our seal services installation process ensures optimal clearances, maintains design efficiency, and reduces the likelihood of vibration due to seal rubs. View the video on the advantages of our custom fitting of packing and […]

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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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Gas Turbine Alignment

Gas Turbine Alignment

Mechanical Dynamics & Analysis (MD&A) experts offer specialized gas turbine services, such as Gas Turbine Alignment, as a global full-service provider to the power generation industry. Unlike steam turbine alignment, gas turbine alignment is performed with the upper halves installed, also called “Tops-On” alignment, and moves must be made in a specific sequence, adding to […]

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Gas Turbine Services Video

Experienced Full-Service Gas Turbine-Generator Provider Power plant owners and operators have entrusted their turnkey turbine-generator overhauls to MD&A for close to four decades. Our team of seasoned professionals has a broad range of experiences whose skill sets cover both common and unique makes and models of turbo machinery from around the world. Our reputation for […]

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