Siemens Steam Turbines
Flexible, reliable and robust
General Information
- Description
- Output Overview
Siemens offers a comprehensive range of steam turbines from 45 kW to 1,900 MW, with the flexibility to address the specific requirements of your particular application. With over a century of experience and continuous development in steam turbine technology, Siemens has stayed at the forefront of development and is a prime partner for your business.
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Steam Turbine SST-500
- Description
- Technical Data
- Benefits
- Design Concept
- Package
The SST-500 is a single casing, double flow steam turbine with up to 100 MW power output. It can be used as an entire drive or as the low-pressure module of a multiple-casing turboset, directly driven or geared. This turbine, with its capacity to operate over a wide range of speed and power, is ideal for large steam volume flows.
It represents a solution based on long experience of industrial steam turbines, covering industrial applications such as:
- Pump drive (e.g. feedwater pump for large boilers)
- Generator drive
- Compressor drive
- Waste to energy, e.g. waste incinerators
- Applications which use waste heat, for instance in steel works or waste heat from chemical processes in the chemical/petrochemical industry
| Power output | up to 100 MW |
| Rotational speed | up to 15,000 rpm |
| Inlet steam pressure | up to 30 bar / 435 psi |
| Inlet steam temperature | up to 400 °C / 750 °F |
| Bleed | up to 2, at various pressure levels |
| Exhaust steam conditions | condensing: up to 1 bar (a) / 14.5 psi |
All data are approximate and project-related.
- Fast and early layout planning
- Short delivery time due to extensive pre-design
- Compact design minimizes space requirements of installation
- Easy access to mechanical components facilitates maintenance
- Remote control for simple operation
- High reliability, availability and efficiency
- Single casing, double flow condensing steam turbine
- Proven, modular and compact design
- Two steam inlets, customized steam path
- Throttle controlled with or without bleeds
- Often used as low pressure part of the casing in multiple applications
The inlet flows into the turbine by means of two tangential inlets to equalize thermal and blade stress. Emergency stop valves and control valves are installed in the steam inlet pipes. The steam flows tangentially into the inner casing and then axially to both exhausts. The customized design of the steam path allows exact adjustment to surpass general physical limitations of the last stage blades. Double end drive is available, if required, e.g. for booster pump drive.
Power output and typical optimized corresponding speed can vary between 10 MW at 15,000 rpm and 100 MW at 4,500 rpm. Both inner and outer casing are horizontally split for easy access. The guide blades are fastened in the inner casing or blade carriers to allow easy and rapid replacement.
The single casing, modular package design allows a wide variety of configurations to satisfy individual customer needs in the most economical way.
| 1. Steam tube | 4. Booster pump |
| 2. Oil unit | 5. Main pump |
| 3. Condenser |
Typical Dimensions (for a 50 MW steam turbine)
Length (L): 19 m / 62 ft.
Width (W): 6 m / 20 ft.
Height (H): 5 m / 16.4 ft.
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Brochure: Steam Turbines - Product range up to 250 MW