Search Sites

Journal of the Japan Institute of Energy Vol. 102 (2023), No. 4

ISIJ International
belloff
ONLINE ISSN: 1882-6121
PRINT ISSN: 0916-8753
Publisher: The Japan Institute of Energy

Backnumber

  1. Vol. 103 (2024)

  2. Vol. 102 (2023)

  3. Vol. 101 (2022)

  4. Vol. 100 (2021)

  5. Vol. 99 (2020)

  6. Vol. 98 (2019)

  7. Vol. 97 (2018)

  8. Vol. 96 (2017)

  9. Vol. 95 (2016)

  10. Vol. 94 (2015)

  11. Vol. 93 (2014)

  12. Vol. 92 (2013)

  13. Vol. 91 (2012)

  14. Vol. 90 (2011)

  15. Vol. 89 (2010)

  16. Vol. 88 (2009)

  17. Vol. 87 (2008)

  18. Vol. 86 (2007)

  19. Vol. 85 (2006)

  20. Vol. 84 (2005)

  21. Vol. 83 (2004)

  22. Vol. 82 (2003)

  23. Vol. 81 (2002)

  24. Vol. 80 (2001)

  25. Vol. 79 (2000)

  26. Vol. 78 (1999)

  27. Vol. 77 (1998)

  28. Vol. 76 (1997)

  29. Vol. 75 (1996)

  30. Vol. 74 (1995)

  31. Vol. 73 (1994)

  32. Vol. 72 (1993)

  33. Vol. 71 (1992)

Journal of the Japan Institute of Energy Vol. 102 (2023), No. 4

Reduction in the Degree of Supercooling of the PCM D-mannitol Using Zeolite as a Nucleating Agent

Xudong TANG, Junichi RYU

pp. 41-50

Abstract

In this study, to alleviate the problem of low heat utilization efficiency caused by extreme supercooling of D-mannitol when used as a phase change material (PCM), we selected eight typical zeolites as nucleating agents and formed the corresponding D-mannitol-based PCMs through the melt blending method. The X-ray diffraction and Fourier transform infrared spectroscopy results reveal that no new compounds other than zeolite and D-mannitol were formed before and after melt blending, and the two were relatively chemically stable throughout the experiment, except for the composite PCM with“ Zeolite HS-690 H-Mordenite.” Differential scanning calorimetry (DSC) analysis was used to investigate the effect of the addition of different types and quantities of zeolite on the crystallization behavior of D-mannitol. The results demonstrate that A- and mordenite crystaltype zeolites induce the crystallization of D-mannitol effectively, and the optimal mass ratio is approximately 10% mass fraction. This study provides long-term experimental data that will guide the practical application of PCMs.The results of the subsequent cyclic experiment reveal that the “Zeolite HS-690 H-Mordenite” additive caused the melting enthalpy of D-mannitol to decrease significantly, and the crystallization temperature also decreased over multiple cycles. In contrast, Zeolite HS-642 Sodium-Mordenite” demonstrated better enthalpy stability in the cyclic experiment than the two A crystal-type zeolites, with a decrease in melting enthalpy of only 1.0%.

Readers Who Read This Article Also Read

Bookmark

Share it with SNS

Article Title

Reduction in the Degree of Supercooling of the PCM D-mannitol Using Zeolite as a Nucleating Agent

Article Access Ranking

15 Apr. (Last 30 Days)

You can use this feature after you logged into the site.
Please click the button below.

Advanced Search

Article Title

Author

Abstract

Journal Title

Year

Please enter the publication date
with Christian era
(4 digits).

Please enter your search criteria.