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A Study of Optimum Insulation Conditions of a HTS Power Cable Cryostat  

Koh, Deuk-Yong (Graduate School, Department of Mechanical Engineering, Hanyang University)
Lee, Kwan-Soo (Department of Mechanical Engineering, Hanyang University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.19, no.4, 2007 , pp. 333-338 More about this Journal
Abstract
The object of this study is to find the optimal insulation design conditions of a HTS power cable cryostat. The optimum condition of a cable cryostat is obtained by varying types of MLIs, cable core weights, spacer diameters, winding pitches and MLI layer numbers. As the weight of cable core is increased, conduction heat transfer from surroundings to cable cryostat is increased. But as the spacer pitch is increased from 120 mm to 200 mm, the heat leak of cable cryostat remains almost constant. The optimal number of MLI layers is suggested. Double ply MLI is more effective than triple ply MLI and the insulation effect is best when the number of MLI layers is 36.
Keywords
High temperature superconductor; Power cable; Multi layer insulation; Cryostat;
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