GE Frame 6B Gas Turbine Combustion Retrofits and Upgrade Solutions

Advance operation performance in single and combined-cycle gas turbines

The GE Frame 6B is one of the most widely installed gas turbines in the global fleet, operating in simple-cycle and combined-cycle power plants across the Americas, Europe, the Middle East, Africa, and Asia. PSM and its sister company Thomassen Energy, both part of the Hanwha Group, together provide a complete aftermarket solution for the 6B platform: PSM's LEC III ultra-low-emission combustion system, combined with Thomassen Energy's hot gas path components,compressor hardware, rotor services, and field installation support.

This combined offering gives 6B operators a single point of access to combustion retrofits, replacement components, performance upgrades, and long-term service agreements, all independent of the OEM. Whether you are planning an emissions compliance upgrade, a hot gas path component replacement, or a full performance optimization, PSM and Thomassen Energy can support your next outage.

Benefits of Upgrading 6B-Class Gas Turbines:

• Increased Efficiency: Lower fuel usage and reduced operating costs through optimized thermal performance.
• Enhanced Performance: Upgrades boost output, improve load response, and increase unit reliability.
• Reduced Emissions: Advanced combustion and component design help meet NOx, CO, and particulate matter targets.
• Improved Flexibility: Smoother ramping and better turndown capability make it easier to integrate with renewables.
• Enhanced Safety: Better monitoring, improved fuel isolation, and system protections reduce operational risk.

6B Hot Gas Path Components, Rotor Services, and Field Support from Thomassen Energy Design Improvements

Thomassen Energy, PSM's sister company within the Hanwha Group, provides a complete portfolio of aftermarket hot gas path components, compressor hardware, rotor services, and field support for the GE Frame 6B. Based in Rheden, the Netherlands, Thomassen Energy has supported 6B operators since 2004 withengineered upgrade solutions that extend component life, reduce lifecyclecosts, and improve performance.

1st Stage Nozzle

• Engineered for OEM-equivalent quality
• Optional NiCoCrAlY coating and thermal barrier coatings (TBCs)

1st Stage Buckets

• Optimized aero profile and enhanced cooling for longer life

2nd Stage Nozzle

• Engineered to meet OEM performance standards

2nd Stage Buckets

• Scalloped tip shroud for improves creep resistance
• Larger contact area reduces tip shingling

3rd Stage Nozzle

• OEM-level design for consistent quality and durability

3rd Stage Buckets

• Tip shroud design mitigates shingling
• Available in standard and advanced aero configurations

6B Product and Solutions Resources

LEC III™ Ultra-Low-Emission Combustion Retrofit for the GE Frame 6B

PSM's LEC III combustion system is a field-proven ultra-low-emission retrofit for the GE Frame 6B gas turbine. LEC III replaces existing DLN 1.0 combustion hardware or diffusion system configurations with PSM's proprietary combustor design,delivering regulatory-compliant NOx and CO emissions without sacrificing operational flexibility or requiring changes to the turbine section.

LEC III performance (6B platform):

·  Sub-5 ppm NOx on natural gas at baseload (LEC III)
·  Sub-9 ppm NOx on natural gas (LEC NextGen, lower-cost option)
·  100+ global installations across B/E-class fleet(6B, 7EA, 9E frames)
·  Compatible with GE 6581B legacy combustion systems
·  Direct DLN 1.0 replacement or diffusion system conversion
·  Extended turndown range while maintaining single-digit NOx and CO
·  Support for natural gas and multi-fuel operation
·  Designed for installation during a standard combustion inspection outage

LEC NextGen:

For operators who need emissions reduction but do not require the full LEC III package, PSM's LEC NextGen delivers sub-9 ppm NOx at a lower cost point. Same form factor and installation footprint as LEC III. Available for the 6B as well as 7EA and 9E platforms.