An extensive portfolio of full-speed steam turbines for SMRs ranging from 50 to 600 MW - built on decades of engineering experience from nuclear and fossil steam turbines.
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Modular solutions designed for the compact footprint of SMRs, adaptable to a wide range of power output levels
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Turbines engineered for high thermal efficiency to maximise electric energy conversion
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Track record of safety and reliability across a large installed base, compliant with global and jurisdiction-specific regulatory requirements
A wide portfolio for different output levels
| Turbine | Output range | Steam parameters | Application |
|---|---|---|---|
| STF-N600 | 350 - 600 MW | Up to 300 bar/ 630°C | Reheat - full speed |
| STF-N400 | 250 - 550 MW | Up to 185 bar/ 600°C | Reheat - full speed |
| STF-N200 | 100 - 350 MW | Up to 185 bar/ 600°C | Reheat/ non-reheat – full speed |
| STF-N100 | 50 - 130 MW | Up to 165 bar/ 565°C | Reheat/ non-reheat – full speed |
History of innovation
Arabelle Solutions’ steam turbine engineering heritage provides an unparalleled track record gained from designing, manufacturing, and maintaining turbines for nuclear and fossil power plants. Continuing this history of innovation, the SMR steam turbines are developed for flexible operation while achieving the highest levels of efficiency and reliability.
Building on the team’s expertise, including from high-temperature load-following capabilities of fossil units, the SMR turbines are able to withstand a wide range of conditions with a focus on mechanical integrity and erosion resistance allowing for longer inspection intervals.
Blading technology
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Optimized airfoil design with high strength steel
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Robust and reliable damping technology
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Four-hook root to optimize stress distribution
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High stage efficiency using state of the art 3D profiles
Rotor and bearing design
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Single bearing between turbine modules and the generator leading to smaller footprint, easy installation and alignment
- Monoblock or welded rotors depending upon size and steam conditions to achieve best reliability and performance
Steam turbines for Darlington SMRs
Arabelle Solutions will provide the steam turbine for GE Vernova Hitachi Nuclear Energy's BWRX-300 SMRs at Darlington, Canada.
The 34-metres-long shaftline will feature a single-flow high-pressure module and two double-flow low-pressure modules to enhance cycle efficiency. To maximize power output, the full-speed turbine is equipped with a 40-inch last-stage blade.
