High-effectiveness miniature cryogenic recuperator

  • Published : 2009.06.30


The performance of cryogenic refrigerator greatly depends on the effectiveness of heat exchanger, which generates major entropy at low temperature. There are numerous types of heat exchanger available, but it is not easy to apply most of them to cryogenic application because the cryogenic heat exchanger must have high effectiveness value as well as small conduction loss in the environment of considerable temperature difference. In this paper, two kinds of heat exchanger are noticeably introduced for high-effectiveness miniature cryogenic recuperator(recuperative heat ex-changer). Also, the flow mal-distribution problem, which is a critical issue of performance deterioration in a high-effectiveness recuperator, is addressed with simplified model, and its alleviation method is discussed.



  1. McCormick, J. A., Nellis, G. F., Sixsmith, H., Zagarola, M. V., Gibbson, J. A., Izenson, M. G. and Swift, W. L., 2001, Advanced developments for low temperature turbo- Brayton cryocoolers, Cryocoolers 11, pp. 481-488
  2. Marquardt, E. D. and Radebaugh, R., 2003, Compact high effectiveness parallel plate heat exchangers, Cryocoolers 12, pp. 507-516
  3. Jung, J. and Jeong, S., 2005, Chemically etched cryogenic micro structure heat exchanger, Proceedings of the 2005 ASME Summer Heat Transfer Conference, July 17-22, Westin St. Francis, San Francisco, CA, USA
  4. Jung, J. and Jeong, S., 2007, Cryogenic heat exchanger with photo-etched mini- perforated plates allowing flow-bypass, Proceedings of 2007 ASMEJSME Thermal Engineering Summer Heat Transfer Conference, July 8-12, Vancouver, British Columbia, CANADA
  5. Hill, R. W., Izenson M. G., Chen, W. B. and Zagarola, M. V., 2007, A recuperative heat exchanger for space-borne turbo-Brayton cryocoolers, Cryocooler 14, pp. 525-533
  6. Barron, R. F., 1999, Cryogenic Heat Transfer, Taylor& Francis, Philadelphia, USA, Chap. 6
  7. Hesselgreaves, J. E., 2001, Compact Heat Exchangers : Selection, Design, and Operation, Pergamon, Kidlington, UK, Chap. 2
  8. Marquardt, E. D., Radebaugh, R., and Dobak, J., 1998, A cryogenic catheter for treating heart arrhythmia, Advances in Cryogenic Engineering, Vol. 43, pp. 903-910
  9. Luo, E. C., Gong, M. Q., Zhou, Y., and Liang, J. T., 1999, Experimental comparison of mixedrefrigerant Joule-Thomson cryocoolers with two types of counterflow heat exchangers, Cryocoolers 10, pp. 481-486 https://doi.org/10.1007/0-306-47090-X_57
  10. Cowans, K. W., 1974, A countercurrent heat exchanger that compensates automatically for maldistribution of flow in parallel channels, Advances in Cryogenic Engineering, Vol. 19, pp. 437-444
  11. Mueller, A. C. and Chiou, J. P., 198, Review of various types of flow maldistribution in heat exchagners, Heat Transfer Engineering, Vol. 9, pp. 36-50 https://doi.org/10.1080/01457638808939664
  12. Kitto Jr., John, B. and Robertson, J. M., 1989, Effects of maldistribution of flow on heat transfer equipment performance, Heat Transfer Engineering, Vol. 10, pp. 18-25 https://doi.org/10.1080/01457638908939688
  13. Mueller, A. C., 1987, Effects of some types of maldistribution on the performance of heat exchangers, Heat Transfer Engineering, Vol. 8, pp. 75-86 https://doi.org/10.1080/01457638708962795
  14. Jung, J., 2008, Recuperative two-stage pulse tube refrigerator, Ph. D. thesis, KAIST
  15. Jung, J., Jeong, S., Hwang, G., 2008, Miniature PCHE-type recuperator with transverse bypass, Cryocooler 15, to be published