Optimization and thermodynamic understanding of conduction-cooled Peltier current leads

✍ Scribed by X.C. Xuan; K.C. Ng; C. Yap; H.T. Chua

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 286 KB
• Volume: 42
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/s0011-2275(02)00018-8

✦ Synopsis

Conduction-cooled Peltier current leads (PCLs) are optimized in a superconducting magnetic system. Optimum geometric factors, viz. the ratio of length to cross-sectional area, of both the copper lead and thermoelectric element, are simultaneously found to minimize the heat leak per PCL. A rigorous thermodynamic temperature-entropy (T-s) diagram is constructed. The heat leak as well as the total input power of both PCLs and converntional all-copper leads can be easily identified from the rectangular areas on the simple 2-D T-s plane.