“V” MACHINE PROBLEMS & SOLUTIONS August 2010

COMPONENT SOLUTIONS Inner Casing & Assembly Components Dome Plates Burner Bezel Rings Combustion Tiles Gas Distributors Premix Swirlers Tile Support Rings

INNER CASING PROBLEMS Inner Barrel Cracking Fretting Of Radiation Liner Spacer Disks Inlet Fretting From Elbow Transition Rings Cracking Near Inlet Bowl Cracking At Radiation Liner Pins Centering Pin Boss Fretting Casing / Inlet Bowl Finger Wear K-Ring Wear 1st Stage Vane Seal Ring Wear

INNER CASING SOLUTIONS Finite Element Analysis Chrome Carbide Coating At Wear Points Radiation Liner Spacer Disks, Upgraded Material Spacer Disks Welded To Pins – Eliminate Fretting Inner Barrel Flange Relocation and Redesign Inner Barrel Cooling Air Bypass Inner Barrel Material Upgrade Inner Barrel Forged Flange Thermal Barrier Coating Vane Seal Ring Material Upgrade Radiation Liner Modification

INNER CASING SOLUTIONS

INNER CASING SOLUTIONS Inner Barrel Stresses Eliminated! Many V84.2 and V94.2 New Design In Service!

INNER CASING SOLUTIONS

INNER CASING SOLUTIONS

INNER CASING SOLUTIONS

INNER CASING SOLUTIONS

INNER CASING SOLUTIONS Old Style Vs. New Style Bowl Ring

DOME PLATE SOLUTIONS Severe Fretting & Distortion Refurbish and Replacement Options Upgrade Material To Haynes 230 Apply Thermal Barrier Coating To Reduce Metal Temperature Wear Resistant Coatings To Eliminate Fretting Damage

BURNER BEZEL RING SOLUTIONS Severe Cracking & Fretting Damage Refurbish and Replacement Options Repairs – Machine, Overlay, Re-Machine New From Upgrade Material Design Improvements – Add Cooling Air Slots Add Thermal Barrier Coating

BURNER BEZEL RING SOLUTIONS Design Improvements Addition of Cooling Air To Flange Addition Of TBC

COMBUSTION TILE SOLUTIONS Severe Oxidation & Cracking Refurbish & Alloy Rejuvenation Weld Repair, Re-machine Edges & EDM Re-cut Locking Feature Add Thermal Barrier Coating !!

COMBUSTION TILE SOLUTIONS Major Combustor Improvements!!!

GAS DISTRIBUTOR SOLUTIONS Severe Fretting & Corrosion Damage Weld Repairs Replace Pipe Work Corrosion Control Coatings

PREMIX SWIRLER SOLUTIONS Severe Fretting & Corrosion Damage Overlay Weld & Re-Machine Features Manufacture New Airfoils & Fasteners Upgrade With 5380DP Coating

TILE SUPPORT RING SOLUTIONS Severe Oxidation & Fretting Damage Material Upgrade Oxidation-Resistant Coating Hard-Facing For Wear Protection

We Look Forward To Working With You In The Future!! Genex Turbine Technologies can refurbish, manufacture and provide tested and PROVEN modifications to your Siemens “V” components. We Look Forward To Working With You In The Future!!