Paraffin/beeswax/plaster as thermal energy storage composite: Characterization and application in buildings

Medjahed B., Dardouri S., Hammou H., Fellouh F. Z., ARICI M.

Journal of Energy Storage, cilt.88, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 88
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.est.2024.111344
  • Dergi Adı: Journal of Energy Storage
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Anahtar Kelimeler: BPCM, Experimental study, Plaster, PPCM, Temperature, Thermophysical properties
  • Kocaeli Üniversitesi Adresli: Evet

Özet

This study aims to explore the impact of increasing the mass percentage of a mixture of two phase change materials, paraffin (PPCM) and beeswax (BPCM), within plaster on the thermal insulation of a double-wall system. Our discussion primarily revolves around the thermal properties of the composite materials, namely PPCM-infused plaster and BPCM-infused plaster, with varying proportions of PPCM and BPCM. We investigated several key parameters, including density, thermal conductivity, specific heat capacity, thermal diffusivity, and latent heat, for the composite material and compared them with those of standard plaster. The characterization of the composite material was conducted using an experimental setup at the laboratory scale. Our findings reveal that an increase in the mass fraction of PPCM and BPCM in the plaster leads to a reduction in thermal conductivity and thermal diffusivity within the PPCM and BPCM composite, resulting in a lower temperature on the inner surface of the wall. Consequently, this facilitates a decrease in the indoor ambient temperature. Furthermore, the increase in the mass fraction enhances the specific heat capacity and latent heat storage of the composite material.