Journal of Industrial and Engineering Chemistry

  • Volume 55
  • /
  • Pages.215-223
  • /
  • 2017
  • /
  • 1226-086X(pISSN)
  • /
  • 1876-794X(eISSN)
The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Performance evaluation of macro-packed fatty acid ester composites using energy-efficient thermal storage systems

  • Wi, Seunghwan (Building Environment & Materials Lab, School of Architecture, Soongsil University) ;
  • Jeong, Su-Gwang (Building Environment & Materials Lab, School of Architecture, Soongsil University) ;
  • Chang, Seong Jin (Building Environment & Materials Lab, School of Architecture, Soongsil University) ;
  • Lee, Jongki (Building Environment & Materials Lab, School of Architecture, Soongsil University) ;
  • Kim, Sumin (Building Environment & Materials Lab, School of Architecture, Soongsil University)
  • Received : 2017.03.06
  • Accepted : 2017.06.27
  • Published : 2017.11.25
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Abstract

The fatty-acid composites are used for thermal-storage systems. The macro-packing method was developed to prevent leakage during the phase transition and to enhance the thermal conductivity. The thermal conductivity of the macro-packed fatty-acid composites were increased by 5.19-27.64% when compared with the non-packed fatty-acid composites. The thermal-storage performances were analyzed using differential scanning calorimetry (DSC). The latent-heat levels of the fatty acid waxes during the endothermic process are from 106.9 to 173.6 J/g. A thermal-performance device was used for a dynamic heat-transfer analysis. The macro-packed fatty-acid composites significantly reduced the peak load.

Keywords

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)