ONE CALL. ONE SOURCE. POWERFUL SOLUTIONS.
• Increase output by 8 MW with longer 32,000 hour/1,200 start intervals
• Extend service intervals or increase output (customizable option based on customer need)
This upgrade combines newly designed 1st stage components with previously upgraded 2nd and 3rd stage hardware.
PART
S FRAME 7FA.03+Enhanced 7FA.03 Turbine Upgrade
MECHANICAL DYNAMICS & ANALYSISFor more information on this product or service please contact MD&A at 860-781-3152 or www.mdaturbines.com
Formerly PW Powers Systems’ IGT division, an industry leader in parts repair and manufacturing, the MD&A San Antonio Service Center has cutting edge equipment and repair techniques with proven expertise on multiple frame gas components.
Our enhanced Frame 7FA.03+ upgrade increases megawatt output while reducing customer cost. Extensive testing on existing OEM components culminates in an improved version and enhanced design; The upgrade has greater flexibility, extended service life, and customized maintenance intervals. It comes complete with the same proficiency and service the world has come to expect from MD&A.
Maximizing turbine capacity and reducing operational costs, the 7FA.03+ parts:
Design Advantages of the 7FA.03+ 1st Stage
1st Stage Bucket • Improved cooling distribution at the tip, trailing edge, andplatform reduces peak metal temperature
• Cast-in tip cap eliminates possibility of cap failures and furtherimproves oxidation life at tip
• Redistributed cooling airflow actively cools the platform andeliminates cracking
1st Stage Nozzle • Singlet design incorporates a full gas path TBC for improvedoxidation life and airfoil temperature reduction
• Improved airflow holds NOx steady with increasedfiring temperature
1st Stage Shroud • Improved airflow configuration combats leakage and dedicatestargeted airflow to improve oxidation life
• Proven upgraded heat transfer patterns on shroudtile inner wall
Firing Temperature Increase Relies on Existing MD&A Upgraded Designs
2nd Stage Bucket • Improved proprietary equiaxed alloy versus OEM DS alloyprovides interlocking grain strength at tip shroud while keepingcreep strength in airfoil
• Optimized tip geometry and fillet shape for improvedcreep life
• Enhanced MCrAlY coating and fully TBC-coated airfoil foroxidation resistance
2nd Stage Nozzle • Improved alloy with full metallic and TBC coating on allsurfaces to reduce metal temperatures and fatigue
• Advanced fillet to platform geometry to improve creep life
• Diaphragms changed to SS310 alloy to reduce oxidation andminimize associated repair costs
3rd Stage Nozzle; 2nd and 3rd Stage Shrouds • Demonstrated reliability and repairability
• 3rd stage nozzle diaphragms changed to 310SS alloy to reduceoxidation and minimize repair costs
FRAME 7FA.03+ UPGRADE
For more information on this product or service please contact MD&A at 860-781-3152 © Mechanical Dynamics & Analysis LLC 2018
MECHANICAL DYNAMICS & ANALYSIS6948 Fairgrounds Parkway • San Antonio, TX 78238 • Ph: (860) 781-3152 • www.MDAturbines.com