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Applied energy v.212, 2018년, pp.552 - 564   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Thermal performance of co-electrospun fatty acid nanofiber composites in the presence of nanoparticles

Golestaneh, Seyyed Iman (Department of Chemical Engineering, Shiraz University, Shiraz 7134851154, Iran ) ; Karimi, Gholamreza (Department of Chemical Engineering, Shiraz University, Shiraz 7134851154, Iran ) ; Babapoor, Aziz (Department of Chemical Engineering, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran ) ; Torabi, Farshid (Petroleum Systems Enginering, University of Regina, Regina, SK S4S 0A2, Canada ) ;
  • 초록  

    Abstract Co-electrospinning of fatty acid eutectics in the presence of nanoparticles has been used to produce thermally conductive nanofiber composites with suitable phase-transition temperature range. Capric acid (CA), palmitic acid (PA) and lauric acid (LA) and their eutectics were used as the phase change materials (PCMs) and polyethylene terephthalate (PET) was used as the supporting matrix. Four different nanoparticles (Al 2 O 3 , Fe 2 O 3 , SiO 2 and ZnO) at different weight fractions were added to the fatty acid eutectic solutions which eventually appeared in the electrospun composites. The structure, morphology, thermal properties and energy storage capacity of the prepared nanocomposite-enhanced phase change materials (NEPCMs) were examined by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and differential scanning calorimetry (DSC), respectively. The average diameter of nanocomposite fibers was found to be significantly smaller than that of pure composite fibers due to the increased conductivity in spin dope associated with the presence of nanoparticles. Also, the presence of nanoparticles has caused the phase transition temperature ranges (onset – offset) of the composite fibers to shift towards lower temperatures (e.g. lower melting point temperatures). The fabricated PCM composite have shown proper thermal conductivity, energy storage capacity and efficiency as well as phase transition temperature range all of which are necessary for low temperature energy storage/retrieval systems. Highlights Nano fiber PCM composites are produced using co-electrospinning method. Fatty acid eutectics are used as the PCM and PET is used as the supporting matrix. Nanoparticles of Al 2 O 3 , Fe 2 O 3 , SiO 2 and ZnO are incorporated into the composite fibers. Nanoparticles promoted energy storage capacity and efficiency of the nano composites. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    Phase change material (PCM) .   Nanofiber composites .   Fatty acid eutectics .   Co-electrospinning .   Thermal properties.  

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