n-Alkanes Phase Change Materials and Their Microencapsulation for Thermal Energy Storage: A Critical Review

By Hao Peng, Dong Zhang, X. Ling, Yang Li, Yan Wang, Qinghua Yu, X. She, Yongliang Li, Yulong Ding. Energy & Fuels, 2018

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n-Alkanes and their blends are characterized as phase change materials (PCMs) due to their superior thermodynamic performances, for storing thermal energy in various practical applications (solar or wind energy). Such materials present some limitations, including lower thermal conductivity, supercooling, phase segregation, and volume expansion, among others. To address these problems, microencapsulation of n-alkanes and their blends is being successfully developed. A considerable amount of work has been published in this regard. Hence, the aim of this review is focused on two aspects: summarize the pure n-alkanes and their blends PCMs; describe their microencapsulation. PCM-interesting characteristics (transition temperatures and enthalpies) of pure n-alkanes, multinary alkanes, and paraffins (over 140 types) were listed, while the phase equilibrium evaluations of multinary alkanes were elaborated on. The essential information, core and shell materials, crystallization and melting characteristics, encapsu...

Subfields: Mechanical Engineering, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/dcb62dd5c64b912b80304470a0cbf2e28f380647

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