Abstract
In this paper, innovative capric–palmitic–stearic acid ternary eutectic/polyacrylonitrile/aluminum oxide (CA–PA–SA/PAN/Al2O3) form-stable phase change composite fibrous membranes (PCCFMs) with different mass ratios of Al2O3 nanoparticles were prepared for thermal energy storage. The influences of Al2O3 nanoparticles on morphology and thermal performances of the form-stable PCCFMs were investigated by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and measurement of melting and freezing times, respectively. The results showed that there was no apparent leakage trace from the SEM observation. The DSC analysis indicated that the addition of Al2O3 nanoparticles had no significant effect on phase transition temperatures and enthalpies of the CA–PA–SA/PAN/Al2O3 form-stable PCCFMs. The melting peak temperatures and melting enthalpies of form-stable PCCFMs were about 25 °C and 131–139 kJ/kg, respectively. The melting and freezing times of the CA–PA–SA/PAN/Al2O310 form-stable PCCFMs were shortened by approximately 21% and 23%, respectively, compared with those of the CA–PA–SA/PAN form-stable PCCFMs due to the addition of Al2O3 nanoparticles acting as heat transfer fillers.
Highlights
Thermal energy storage technologies for reducing energy consumption and improving energy efficiency have become increasingly important with the growth of population and the development of industry
Low thermal conductivity and liquid leakage problems limit their feasibility in thermal energy storage applications to a certain extent
The successfully absorbed into the three-dimensional porous network structure of electrospun
Summary
Thermal energy storage technologies for reducing energy consumption and improving energy efficiency have become increasingly important with the growth of population and the development of industry. Among the available strategies for energy storage, latent heat storage technology using phase change materials (PCMs) is considered as one of the most promising technologies. PCMs have been widely researched and successfully applied in numerous fields such as solar thermal collectors [1], heat recovery systems [2], residential and commercial buildings [3], refrigerated containers [4], greenhouse systems [5], Li-ion battery thermal management [6], thermal regulating fibers and textiles [7], and so forth. As a derivative of fatty acids, exhibit the same desirable properties as those of fatty acids, such as good thermal and chemical stabilities, high latent heat storage capacities, reversible phase change behavior, no supercooling and phase segregation, nontoxicity, noncorrosiveness, and cost effectiveness [8]. The Materials 2018, 11, 1785; doi:10.3390/ma11091785 www.mdpi.com/journal/materials
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
