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Conference Article: Investigation of Full Electromagnetic Suspension For Turbomachine Rotor

Abstract

Creation of power units with high-temperature helium reactors for high efficient electric power generation is one of most prospective trends of nuclear power evolution. The power unit consists HT-MHG of a helium modular reactor capable of high-temperature heat generating and power conversion system including a turbine, compressors, electric generator, recuperator, precooler and intercooler. Such nuclear plant design [1,2] is developed by several Russian enterprises under support of Minatom of Russia and Department of Energy of the USA. Companies from other countries show interest in this project too. Turbomachine rotor of GT-MHR power conversion unit is characterized by vertical layout, natural bending resonance frequency, heavy weight and prototype absence as for electromagnetic bearing utilization respectively. Because of high cost and laborious fabrication it is complicated to get required design data by means of creation and testing of full-scale prototypes. Therefore investigations are carried out at some elements using corresponding test facilities. System originality requires for development and testing of main engineering solutions. It concerns electromagnetic bearings (EMBs) with control system too. This problem will be solved by successive creation of several test facilities. Specifically small-scale test facility with turbomachine rotor mock-up is used at first stage. Further it is proposed to fabricate and to conduct investigations at scale test facility and, finally, - at full-scale one with turbocompressor. At the same time corresponding design-theoretical activities are carried out.

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Reference:

Proceedings of the Conference on High Temperature Reactors, Beijing, China, September, 22-24, 2004

International Atomic Energy Agency, Vienna (Austria)

HTR-2004, pp:1-18