fbpx

D11 Problems & Repair Solutions

D11 Bowed Rotor | D11 Problems & Repairs Solutions

The common GE® D11 steam turbine, a single-casing HP/IP design used extensively in combined cycle applications, is demanding increased focus during normal outages, and ongoing attention for reliability, efficiency, and plant safety. Fundamental reasons are intensified by market-driven calls for continued cycling and low-load operation. Units modified for higher efficiencies and compatibility with 7FA Gas […]

Read More

D11 Retrofit Solutions in light of Early Life Expectancy 

D11 Retrofit

Relative to historical industry experiences, D11 steam turbines have come of age at an early stage in their lifecycle and are strong candidates for retrofit solutions.   The most common reasons reported to MD&A for prompting retrofit consideration include (1) reliability issues, (2) technology obsolescence, and (3) changes within plant operating missions and steam cycles (e.g. […]

Read More

Steam Turbine Reheat Stop Valves Restoration

Valves Restoration

Mechanical Dynamics & Analysis (MD&A) performed a complete reheat stop valves restoration along with one LP stop valve. These RH stop valves on a Siemens Westinghouse® unit had not been fully restored for 14 years.   Pre-outage planning took place between our team and key plant personnel.  Upgraded valve materials were designed and manufactured, and […]

Read More

MD&A 40TH Anniversary 2022 Video

40TH Anniversary

Founded on June 1, 1982, by Mr. Jim Lindsey – Mechanical Dynamics & Analysis (MD&A) is celebrating 40 Powerful Years in 2022!  We are your full-service, OEM-alternative! View our 40th Anniversary video below: 

Read More

Spare LPB Rotor and Diaphragm Repairs

Spare LPB Rotor and Diaphragm Repairs

Steam turbine experts at Mechanical Dynamics & Analysis (MD&A) have completed LPB rotor and diaphragm repairs of a spare 410 MW GE® G2 design unit. The site had removed the crossover and outer shell to find severe damage and missing blades in the turbine’s low-pressure section. MD&A was contracted to inspect the spare LPB (low-pressure […]

Read More

Steam Turbine Capabilities Video

For more than four decades, MD&A has been committed to provide Steam Turbine Repair, Services & Parts – making us the trusted full service provider! In our Turbine-Generator Repair Facility, located in St. Louis, MO, we are your one-stop-shop for various manufacturers’ steam turbines. View our Steam Turbine Capabilities Video below and then call MD&A […]

Read More

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 […]

Read More

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 […]

Read More

Overhaul Steam Turbine Services

Mechanical Dynamics & Analysis (MD&A) provides Steam Turbine Services to power generation plants worldwide. A full-service, OEM-alternative offers products for steam turbines, gas turbines, and generators to our many clients. Planning ahead for major turbine overhauls is important and our experienced team can help coordinate. However, forced outages do transpire and our experts provide fast […]

Read More

Contact

Submit the below form or visit our main 24/7 Contact & Locations page.

  • This field is for validation purposes and should be left unchanged.