NATURAL GAS EXPANSION TURBINES Enertime expansion turbines improve the energy efficiency of natural gas expansion stations. Enertime developed its own gas expansion technology that guarantees a high isentropic turbine efficiency and a capacity to offer tailor-made solutions to meet the needs of its customers. Industrial gas consumers, gas transportation and distribution networks can use gas expansion energy to generate power and cold. Enertime solution has been designed to exploit the energy which is lost during pressure letdown, while ensuring the quality of supply to the end customer (flow, pressure and temperature required by the latter). Their grid intake reduction is combined with lower operation cost and environmental footprint. APPLICATIONS: • Gas letdown stations to distribution networks • Gas letdown stations to industrial consumers • Simultaneous electricity and cold production POSSIBLE SCOPE OF SUPPLY: • Turbo-generator and auxiliaries, safety valve • Complete system POSSIBLE FUNDING SUPPORT: • Eligible to Energy Savings Certificates in some countries • Self-consumption incentives • Regional, national and European grants BELOW 1 MWe : • Completely sealed multistage turbo-generator • High speed generator cooled by the natural gas • Active Magnetic Bearings ABOVE 1 MW : • • • • Multistage overhung turbine assembled on reducing gear Gear shafts supported by hydrodynamic bearings Coupled to a 2 or 4 poles generator (synchronous or asynchronous) Dry gas seal (tandem or double pressurized) Enertime axial multistage turbi

AN EFFICIENT SYSTEM: • Turbine efficiency above 80% • High part-load efficiency • Modular configuration • Lifetime above 20 years FULLY AUTOMATED: • Automatic start and stop • Load control • Advanced Power Electronics • Unattended operation • Low operating costs • Limited maintenance required INLET PRESSURE INLET TEMPERATURE OUTLET PRESSURE PRESSURE RATIO ELECTRIC OUTPUT COLD PRODUCTION FLEXIBLE: • Large operating range (50% to 110% load) • Simple and compact design Enertime axial multistage turbine www.enertime.com 2.5 MWe expansion turbogenerator Villiers le Bel, France 1, Rue du Moulin des...