The technology is on show at the 16th International Symposium on Magnetic Bearings (ISMB16) in Beijing, China, later this month.
“We are using Calnetix’s magnetic bearings in our Carefree Integrated Power Module (IPM), which is the heart of our Organic Rankine Cycle (ORC) systems that are designed to tap into the extra low temperature heat sources available for power production,” said Venky Krishnan, Vice President of Access Energy. “With one moving part, and no physical bearing contact, the IPM provides exceptional reliability in a very small footprint.”
A paper from Rasish Khatri, Lead Engineer and Larry Hawkins, Director of Technology, Magnetic Bearings, at the conference reviews and compares the dynamics requirements included in the latest standard, API 617 8th Edition Annex E, with those of ISO 14839-3. The authors analyse the stability criteria of both standards by simulating the synchronous response, sensitivity transfer function and closed-loop transfer function of simple one dimensional dynamic systems.
“There is a growing demand for oil free systems in multiple industries - compressors, blowers, chillers and other turbomachinery,” said Vatche Artinian, CEO of Calnetix. “The bearings form the backbone of high-speed turbomachinery, and Calnetix is uniquely positioned to provide cost-effective integral drive solutions for turbomachinery on our Powerflux magnetic bearings.”