Resource Library

Technical Papers

Development of a 125 kW AMB Expander/Generator for Waste Heat Recovery

The development and testing of an integrated power module (IPM) for a waste heat recovery system is described. The IPM is part of a waste heat recovery system based on the organic Rankine cycle.

Magnetic Bearing Actuator Design for a Gas Expander/Generator

A magnetic bearing system for a high-speed cryogenic gas expander generator is presented. The expander represents a new class of such devices that, in contrast to the earlier technologies, makes use of the expanding gas energy by converting it into electrical power.

Design and Shop Testing of a 165 kW Cryogenic Expander/Generator on Magnetic Bearings

A low cost cryogenic expander system that incorporates a high performance, high-speed permanent magnet generator and low loss magnetic bearings is described.

Test Results and Analytical Predictions for Rotor Drop Testing of An Active Magnetic Bearing Expander/Generator

A cryogenic gas expander system that incorporates a high-performance, high-speed permanent magnet, direct-drive generator and low loss magnetic bearings is described.

Design and Prototype Test Data for a 300kW AMB-supported Turbine Generator for Natural Gas Pressure Letdown

A 300 kw integrated and fully-sealed turboexpander-generator for natural gas pressure letdown (pld) was developed by baker hughes, a ge company (bhge), in conjunction with calnetix technologies.

Product Brochures

Driving Global Decarbonization

Our vision is to improve the way the world harvests and utilizes energy.

FreeSpin® In-Line Turboexpander

Sapphire Technologies FreeSpin TM In-line Turboexpander (FIT) harnesses the power of gas expansion to produce reliable and clean electricity. The FIT uses magnetic technologies that provide a way to capture the energy lost in pressure reduction.

Media

Explainer Video

Hydrogen and natural gas are pressurized to facilitate efficient transportation in pipelines across long distances.

Product Tour

An oil-free, hermetically sealed solution for reducing pressure in gas processing and distribution systems while generating clean power.