Analysis and design of a conductively cooled superconducting magnet system for a rotary active magnetic regenerative liquefier
Date
1996
Authors
Goudie, Dale William
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Abstract
Liquid natural gas (LNG) has been identified as having a strong growth potential in the alternative transportation fuels market. One of the barriers to the adoption of LNG, however, is a lack of economical refuelling stations. The Cryofuel Systems Group, at the University of Victoria, is developing cost effective and efficient liquefaction technologies for distributed fleet-sized LNG refuelling stations. One of the technologies under development is a rotary active magnetic regenerative liquefier (AMRL). A sub-system of the AMRL is a conductively cooled superconducting (SC) magnet system. This thesis presents a substantial part of the analysis and design of such a SC magnet system for an AMRL. Potential SC coil configurations for the magnet system of a rotary AMRL were examined and a partial tokamak and an elliptical split pair were selected as suitable configurations. The magnetostatic analysis and winding design of both configurations are presented along with a force analysis which was used for the structural design. An analysis of the thermal loads and design of the thermal pathways for the conduction cooling system are also presented.