GAS EXPANSION TURBINES
RECOVERING ENERGY FROM THE EXPANSION OF GAS TO PRODUCE COLD AND ELECTRICITY
The gas expansion turbines enable to recover the lost energy in natural gas expansion stations.
Gas transmission/distribution system operators and industrial customers consume natural gas. They tend to improve their energy efficiency and their economic balance in order to reduce their electricity consumption. They self-consume and/or export the produced electricity to the grid by recovering the expansion energy from natural gas without releasing or producing greenhouse gases. This energy recovery also makes it possible to simultaneously produce cold.
There are various applications: expansion to distribution networks or industrial consumers, simultaneous production of electricity and cold.
For powers below 1 MW:
- Hermetic multi-stage turbo generator
- Natural gas-cooled high-speed generator
- Active Magnetic Bearings
For powers above 1 MW:
- Multi-stage turbine cantilevered on a gearbox
- Gearbox shafts supported by hydrodynamic bearings
- Attached to a 2 or 4-pole generator (synchronous or asynchronous)
- Double tandem or double pressurized gas mechanical seal
AN EFFECTIVE SYSTEM
- Turbine efficiency over 80%.
- High performance at part load
- Modular configuration
- Lifetime of more than 20 years
- Automatic start and stop
- Load control
- Advanced power electronics
- Unattended operation
- Low operating costs
- Low maintenance required
- Wide operating range (50% to 110% load)
- Simple and compact installation design