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Enhanced heat transfer mechanism in microencapsulated phase change materials and nanoparticle mixed-binary thermal control fluidстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 23 января 2026 г.
- Авторы: Xu Q., Zhao P., Zhao D., Zhang X., Zhu Y., Liu A., Liu Z., Gu X., Aminova A.I., Guria G.T., Zhang C.
- Журнал: International Journal of Thermal Sciences
- Том: 219
- Год издания: 2026
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 110240
- DOI: 10.1016/j.ijthermalsci.2025.110240
- Аннотация: Microencapsulated phase change materials and nanoparticle mixed-binary thermal control fluid (M&N-BTCF) is a new type of heat transfer medium that can meet the increasing heat dissipation demands of electronic devices. This paper aims to improve the cooling efficiency of M&N-BTCF further by exploring its phase transition heat transfer mechanism. Using the M&N-BTCF flow heat transfer characteristic test platform developed independently, the local average temperature of the M&N-BTCF and its dynamic change characteristics under different operating conditions were successfully obtained by accurately controlling the mass fraction of the nanoparticles and using the three-stage model of solid region, phase change region and liquid region. By establishing the correlation mechanism between dimensionless phase transition region and mass fractions of nanoparticles, we reveal the significant enhancement of phase transition heat transfer by nanoparticle doping and improve our understanding of the enhanced heat transfer mechanism of the M&N-BTCF phase transition process. The results demonstrate that doping with nanoparticles significantly increases the heat transfer rate between micrometer particles and the fluid. This results in a 10.71 % reduction in the length of the phase transition region and a maximum 30.44 % increase in the average Nusselt number. Further performance evaluations show that the figures of merit (FOM) is 3.65, representing a year-on-year improvement of 122.86 %. This study verifies the potential application of M&N-BTCF as a new heat transfer medium, laying a solid foundation for future engineering applications and theoretical studies.
- Добавил в систему: Гурия Георгий Теодорович