화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.79, 437-442, November, 2019
Thermal performance enhancement of a phase change material with expanded graphite via ultrasonication
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It is desirable to improve the performance of phase change materials (PCM)-based thermal energy storage (TES) systems because it increases energy efficiency while decreasing primary energy consumption for low environmental loading. Given that PCM suffers from low thermal conductivity (e.g., due to high latent heat capacity and low phase separation), we investigated several efficient options to improve the thermal conductivity of organic PCM (n-octadecane) based on the addition of (0.1 wt%) expanded graphite (EG). The suspension prepared via ultrasonication led to an improvement of 40% in thermal conductivity corresponding to 0.28 W/m when compared to that of n-octadecane corresponding to 0.20 W/mK. Additionally, the ultrasonication effectively dispersed EG in the PCM for an extended duration relative to the stirring method. A PCM-EG reaction was not evident under ultrasonication conditions. Thus, the thermal conductivity of the PCM exhibited maximum improvement when the two conditions involving extremely low amount of EG and its stable dispersion under sonication condition were maintained. The study demonstrated that a significant improvement in thermal conductivity is obtained with a very low amount of EG and that dispersion stability is obtained even with short ultrasonication times.
  1. Finck C, Li RL, Kramer R, Zeiler W, Appl. Energy, 209, 409 (2018)
  2. Lopez-Sabiron AM, Royo P, Ferreira VJ, Aranda-Uson A, Ferreira G, Appl. Energy, 135, 616 (2014)
  3. Zarajabad OG, Ahmadi R, J. Energy Storage, 17, 515 (2018)
  4. Cardenas B, Leon N, Renew. Sust. Energ. Rev., 27, 724 (2013)
  5. Ahangari M, Maerefat M, Sustain. Cities Soc., 44, 120 (2019)
  6. Yuan Y, Zhang N, Tao W, Cao X, He Y, Renew. Sust. Energ. Rev., 29, 482 (2014)
  7. Khodadadi JM, Fan L, Babaei H, Renew. Sust. Energ. Rev., 24, 418 (2013)
  8. Zhou D, Zhao CY, Tian Y, Appl. Energy, 92, 593 (2012)
  9. Atinafu DG, Dong WJ, Huang XB, Gao HY, Wang G, Appl. Energy, 211, 1203 (2018)
  10. Kasaeian A, Bahrami L, Pourfayaz F, Khodabandeh E, Yan WM, Energy Build., 154, 96 (2017)
  11. Wu SY, Tong X, Nie CD, Peng DQ, Gong SG, Wang ZQ, J. Therm. Anal. Calorim., 124, 181 (2016)
  12. Lee H, Jeong SG, Chang J, Kang Y, Wi S, Kim S, (n.d.). 10.3390/app6040106.
  13. Xiao X, Zhang P, Li M, Appl. Energy, 112, 1357 (2013)
  14. Ho CJ, Gao JY, Int. Commun. Heat Mass Transf., 36, 467 (2009)
  15. Nourani M, Hamdami N, Keramat J, Moheb A, Shahedi M, Renew. Energy, 88, 474 (2016)
  16. Qureshi ZA, Ali HM, Khushnood S, Int. J. Heat Mass Transf., 127, 838 (2018)
  17. Choi DH, Lee J, Hong H, Kang YT, Int. J. Refrig., 42, 112 (2014)
  18. Palacios A, de Gracia A, Cabeza LF, Julia E, Fernandez AI, Barreneche C, Energy Build., 167, 38 (2018)
  19. Li M, Wu ZS, Tan JM, Appl. Energy, 92, 456 (2012)
  20. Liu T, Zhang R, Zhang X, Liu K, Liu Y, Yan P, Carbon, 119, 544 (2017)
  21. Lee S, Kim HM, Seong DG, Lee D, Carbon, 143, 650 (2019)
  22. Zhao TK, Yang WB, Ji XL, Jin WB, Hu JT, Li TH, Appl. Surf. Sci., 460, 58 (2018)
  23. Sarı A, Karaipekli A, Appl. Therm. Eng., 27, 1271 (2007)
  24. Jin Y, Wan Q, Ding Y, Procedia Eng., 102, 1877 (2015)
  25. Carpenter J, Saharan VK, Ultrason. Sonochem., 35, 422 (2017)
  26. Jadhav AJ, Holkar CR, Karekar SE, Pinjari DV, Pandit AB, Ultrason. Sonochem., 23, 201 (2015)
  27. Park J, Son Y, Lee WH, Ultrason. Sonochem., 55, 8 (2019)
  28. Agi A, Junin R, Alqatta AYM, Gbadamosi A, Yahya A, Abbas A, Ultrason. Sonochem., 51, 214 (2019)
  29. Aguila VB, Vasco DA, Galvez PP, Zapata PA, Int. J. Heat Mass Transf., 120, 1009 (2018)
  30. Sivakumar M, Tang SY, Tan KW, Ultrason. Sonochem., 21, 2069 (2014)
  31. Peng TF, Liu B, Gao XC, Luo LQ, Sun HJ, Appl. Surf. Sci., 444, 800 (2018)
  32. Zhang XX, Fan YF, Tao XM, Yick KL, Mater. Chem. Phys., 88(2-3), 300 (2004)
  33. Vermisoglou EC, Giannakopoulou T, Romanos GE, Boukos N, Giannouri M, Lei C, Lekakou C, Trapalis C, Appl. Surf. Sci., 358, 110 (2015)
  34. Hung WC, Wang JC, Wu KH, Appl. Surf. Sci., 444, 330 (2018)
  35. Li C, Zhang B, Xie B, Zhao X, Chen J, Chen Z, Long Y, Sustain. Cities Soc., 44, 458 (2019)
  36. Zhang ZS, Alva G, Gu M, Fang GY, Energy, 157, 625 (2018)
  37. Xiao D, Qu Y, Hu S, Han H, Li Y, Zhai J, Jiang Y, Yang H, Compos. Pt. A-Appl. Sci. Manuf., 77, 50 (2015)
  38. Gao L, Zhao J, An Q, Zhao D, Meng F, Liu X, Appl. Therm. Eng., 113, 858 (2017)