Transient process in a finned triplex tube during phase changing of aluminum oxide enhanced PCMZhixiong Li, M. Sheikholeslami, Zahir Shah, Ahmad Shafee, Abdel-Rahman Al-Qawasmi and I. TliliEur. Phys. J. Plus, 134 4 (2019) 173DOI: https://doi.org/10.1140/epjp/i2019-12627-9