Skip to main content Accessibility help
×
Home

Magnetic refrigeration with GdN by Active Magnetic Refrigerator cycle

  • Yusuke Hirayama (a1), Hiroyuki Okada (a1), Takashi Nakagawa (a1), Takao. A. Yamamoto (a1), Takafumi Kusunose (a2), Numazawa Takenori (a3), Koichi Mastumoto (a4), Toshio Irie (a5) and Eiji Nakamura (a5)...

Abstract

A magnetic refrigeration test was performed using a test device filled with spherical GdN material synthesized by the hot isostatic pressing (HIP) method. Refrigeration with an active magnetic regenerator cycle was tested in the temperature range between 48 and 66 K, with the field changing from 1.2 to 3.7 T and 2.0 to 4.0 T at upper and lower sides of the regenerator bed filled with the GdN spheres, respectively. Temperature spans about of 2 K were obtained at both sides, and the total temperature span in each cycle attained about 5 K. The specific heat of the material was measured to calculate the magnetic entropy change ΔS and the adiabatic temperature change ΔT induced by the magnetic field change ΔH. It was suggested that for a given ΔH, larger ΔS and ΔT can be exploited when demagnetized to lower H, especially, to zero field.

Copyright

References

Hide All
1. Giauque, W. F. and MacDougall, D. P., Physical Review 43, 768 (1933).10.1103/PhysRev.43.768
2. Matsumoto, K., Ito, T., Advances in Cryogenic Engineering 33, 743750 (1988).
3. Barclay, J. A., Stewart, W. F., Advances in Cryogenic Engineering 31, 743752 (1986).10.1007/978-1-4613-2213-9_84
4. Rowe, A. and Tura, A., International Journal of Refrigeration-Revue Internationale Du Froid 29, No. 8, 12861293 (2006).10.1016/j.ijrefrig.2006.07.012
5. Zimm, C., Boeder, A., International Journal of Refrigeration 29, No. 8, 13021306 (2006).10.1016/j.ijrefrig.2006.07.014
6. Zheng, Z. G., Yu, H. Y., International Journal of Refrigeration, 32, No. 1, 7886 (2009),10.1016/j.ijrefrig.2008.06.004
7. Kim, Y. and Jeong, S., AIP conference, 87-94 (2010).10.1063/1.3422444
8. Yu, B.F., Gao, Q., Zhang, B., Meng, X.Z., Chen, Z., International Journal of Refrigeration, 26, 622636 (2003).10.1016/S0140-7007(03)00048-3
9. Barclay, J. A., NASA report NASA-CP-2287, (1983)
10. Nishio, S., Nakagawa, T., Journal of Applied Physics, 99, 08K901, (2006).10.1063/1.2158689
11. Hirayama, Y., Nakagawa, T., Mater. Res. Soc. Symp. Proc. 1040-Q09-05, 152-157 (2008).
12. Hirayama, Y., Tomioka, N., Journal of Alloys and Compounds, 462, L12 (2008).10.1016/j.jallcom.2007.08.052
13. Nakagawa, T., Sako, K., Journal of Alloys and Compounds, 408-412, 187190 (2006).10.1016/j.jallcom.2005.04.046
14. Hirayama, Y., Nakagawa, T., IEEE Transactions on Magnetics, 44, No. 11, 2999 (2008).10.1109/TMAG.2008.2002586
15. Pecharsky, V. K. and Gschneidner, K. A. Jr, Journal of Magnetism and Magnetic Materials, 200, 4456 (1999).10.1016/S0304-8853(99)00397-2
16. Singh, N. K., Suresh, K. G., Nigam, A. K., Malik, S. K., Coelho, A. A., and Gama, S., Journal of Magnetism and Magnetic Materials, 317, 6879 (2007).10.1016/j.jmmm.2007.04.009
17. Wang, J. L., Marquina, C., Ibarra, M. R., and Wu, G. H., Physical Review B - Condensed Matter and Materials Physics, 73, 16 (2006).
18. Inoue, K., Nakamura, Y., Tsvyashchenko, A. V., and Fomicheva, L., Journal of the Physical Society of Japan, 64, 21752182 (1995).10.1143/JPSJ.64.2175
19. Matsumoto, K. and Journal of Physics: Conference Series, 150, No. 1, 012028 (2009).
20. Hirayama, Yusuke, Okada, Hirayuki, Nakagawa, Takashi, J. Jpn. Soc. Powder Powder Metallurgy, 58, 3 (2011).10.2497/jjspm.58.3
21. Hirayama, Y., Nakagawa, T., Cryocooler 16, 531535 (2010).

Keywords

Magnetic refrigeration with GdN by Active Magnetic Refrigerator cycle

  • Yusuke Hirayama (a1), Hiroyuki Okada (a1), Takashi Nakagawa (a1), Takao. A. Yamamoto (a1), Takafumi Kusunose (a2), Numazawa Takenori (a3), Koichi Mastumoto (a4), Toshio Irie (a5) and Eiji Nakamura (a5)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed