ROTEX – Plug-in Exchange Solution of Gas Turbines

No surprises, please

Our solution:

• Critical path of outage execution on-site can be minimized with ROTEX
• ROTEX can reduce potential for unexpected findings
  
• Potential for unplanned costs can be lowered by ROTEX optimized outage planning

Help me with my inventory

Our solution:

• ROTEX can reduce inventory costs by using customer´s spare parts
• ROTEX uses available major components if applicable
• Pool parts are managed by the ROTEX program
• ROTEX pool concept offers economics of scale to customers

Customer benefits:

• Simple cycle efficiency increase up to 1.8%pts
• GT power output increase up to 27 MW
• Combined cycle efficiency increase up to 1.5%pts
• Combined cycle efficiency increase up to 39 MW
  
• Reduced OPEX
• Reduced CO₂ per MW

Scope:

• Compressor Mass Flow Increase (CMF+)
• New turbine Blades & Vanes 1-4
• Rework of turbine vane carrier
• Torque Disks & Rear compressor disk (Precondition: Material Cost E) 
• Turbine Exit Liner Strut Optimization (optional)
• New compressor bearing with increased axial thrust (optional)

Customer benefits:

• Simple cycle efficiency increase up to 1.8%pts
• GT power output increase up to 27 MW
• Combined cycle efficiency increase up to 1.3%pts
• Combined cycle efficiency increase up to 31 MW

Scope:

• New turbine blades and vanes Si3D+™ 
• New seal rings 2,3 and 4
• Minor mechanical work on turbine vane carrier to implement cooling air savings
• Improved compressor bearing, optional Hydraulic Clearance Optimization (HCO)
• Improved turbine outlet temperature measurement (OTC+)

Generator Exchange

Replacing your rotor with a rewound seed rotor with design upgrades can greatly increase the unit availability and reliability.

The generator rotor exchange makes a significant contribution to the economic value as a conventional rotor rewind usually does not fit into regular outage durations from a timeline perspective – a seed rotor replacement usually does.

A Tailored Solution for your Plant

BEX “Brownfield Engine Exchange“ stands for the replacement of existing OEM & oOEM gas turbines with latest technology Siemens Energy units. 

BEX is a custom-tailored solution with the target to maximize the performance and in parallel to keep the overall capital spending at an optimized level.

We have 3 different base solutions in our portfolio:

• BEX EcoLow - Investment, increased Performance, keep Output
• BEX Performance - Medium Investment, increased Performance, increased Output
• BEX Max - High investment, increased Performance, maximum Output

BENEFITS

• Efficiency: Efficiency improvement of up to 3%-pts. in combined cycle enables significant cost reduction and competitively priced energy.
• Flexibility: Part load capability and fast ramp rates improve power system flexibiliy and increase responsiveness to electricity demand and market condition.
• Emissions: Latest technology and high efficiency combustion system enable significant reduction in NO_x, CO, and CO₂ emissions.
• Pricing: Reduced scope limited to gas turbine exchange enables fast return of invest compared to a new built.
• Integration: BEX can be integrated and combined with various solutions such as Power-to-X or battery storage to provide holistic solutions for future power system requirements.
• Hydrogen: Future-proof technology, capable to burn large amounts of hydrogen.