Sapphire Technologies’ FreeSpin® In-line Turboexpander (FIT) recovers the energy lost in pressure letdown and liquefaction processes. Our system’s turboexpander-generator design efficiently converts a fluid’s kinetic energy
into clean power, generating electricity with no carbon footprint. In addition to natural gas and hydrogen, FIT is compatible with compressed air, carbon dioxide, and other process gas applications.
The turboexpander-generator assembly contains a high-performance, high-speed permanent magnet generator with an integrated radial in-flow expansion turbine and low loss active magnetic bearings. FIT’s “flow-through” design directs the expanded fluid directly over the generator, providing integrated cooling and eliminating the need for auxiliary cooling equipment. Sapphire’s proprietary power electronics unit combines a Variable Speed Drive (VSD) and a magnetic bearing controller into a single cabinet. The VSD consistently delivers clean
electricity from the turboexpander-generator to the grid.