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Design of Thermodynamic Cycle and Cryogenic Turbo Expander for 2 kW Class Brayton Refrigerator
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 Title & Authors
Design of Thermodynamic Cycle and Cryogenic Turbo Expander for 2 kW Class Brayton Refrigerator
Lee, Jinwoo; Lee, Changhyeong; Yang, Hyeongseok; Kim, Seokho;
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 Abstract
The High Temperature Superconducting power cables (HTS power cables) become increasingly longer to commercialize the HTS power cable system. Accordingly, demands on refrigerators of large cooling capacity per a unit system have been increased. In Korea, it is currently imported from abroad with the high price due to insufficient domestic technologies. In order to commercialize the HTS power cables, it is necessary to develop the refrigerators with large cooling capacity. The Brayton refrigerators are composed of recuperative heat exchangers, compressors and cryogenic turbo expanders. The most directly considering the efficiency of the Brayton refrigerator, it depends on performance of the cryogenic turbo expander. Rotating at high speed in cryogenic temperature, the cryogenic turbo expanders lower temperature by expanding high pressure of a helium or neon gas. In this paper, the reverse Brayton cycle is designed and the cryogenic turbo expander is designed in accordance with the thermodynamic cycle.
 Keywords
Cryogenic turbo expander;reverse Brayton cycle;cryocooler;refrigerator;cryogenic turbomachines;
 Language
Korean
 Cited by
 References
1.
Y. F. Bi, "Cooling and Cryocoolers for HTS Power Applications," Applied superconductivity and electromagnetics, Vol. 4, No. 1, pp. 97-108, November, 2013.

2.
S. T. Dai, L. Z. Lin, Y. B. Lin, Z. Y. Gao, Y. F. Fang, L. H. Gong, Y. P. Teng, F. Y. Zhang, X. Xu, G. Li, L. F. Li, L. Y. Xiao, "The threephase 75 m long HTS power cable," Cryogenics, Vol. 47, pp. 402-405, July-August, 2007. crossref(new window)

3.
C. H. Lee, D. M. Kim, H. S. Yang, S. H. Kim, "Design and Analysis of Cryogenic Turbo Expander for HTS Power Cable Refrigeration System," Journal of the Korean Society of Manufacturing Process Engineers, Vol.14, No.3, pp.141-148, June, 2015. crossref(new window)

4.
H. M. Chang, M. J. Chung, M. J. Kim, S. B. Park, "Thermodynamic design of methane liquefaction system based on reversed-Brayton cycle," Cryogenics, No. 49, pp. 226-234, June, 2009.

5.
A. T. Sayers, "Hydraulic and Compressible Flow Turbomachines," McGraw-Hill, pp.363-372, 1992.

6.
D. G. Shepherd, "Principles of Turbomachinery," The Macmillan Company, pp. 86-94, 1964.

7.
O. E. Balje, "Turbomachines : a guide to design, selection and theory," JOHN WILEY & SONS, pp. 3-328, 1981.

8.
Hirokazu Hirai, Shinsuke Ozaki, Norihisa Nara, Masaki Hirokawa, Shigeru Yoshida, "Development of a Turbo-Brayton Cooling System for HTS Power Devices," J-STAGE, Vol.48, No.7, pp.352-357, August, 2013.

9.
Frank M. White, "Fluid Mechanics 7th Edition in SI units," McGraw-Hill, pp.791-841, 2012.

10.
R. K. Turton, "Principles of Turbomachinery 2nd Edition," Chapman & Hall, pp.183-192, 1995.

11.
S. K. Ghosh, "Experimental and Computational Studies on Cryogenic Turboexpander," Ph.D. thesis, Mechanical Engineering Department, National Institute of Technology, 2008.