Effect of graphene nanoparticles on charging and discharging processes of latent thermal energy storage using horizontal cylinders

Benbrika M., Teggar M., ARICI M., Ismail K. A., Bouabdallah S., Mezaache E.

Sustainable Energy Technologies and Assessments, cilt.45, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 45
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.seta.2021.101242
  • Dergi Adı: Sustainable Energy Technologies and Assessments
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, Geobase, INSPEC
  • Anahtar Kelimeler: Latent heat, Nanoparticle, Phase change material, Thermal energy storage, Graphene nanoplatelets, PHASE-CHANGE MATERIAL, HEAT-TRANSFER, PARAFFIN WAX, NANO-PCM, SYSTEM, SOLIDIFICATION, CONDUCTIVITY, ENHANCEMENT, PERFORMANCE
  • Kocaeli Üniversitesi Adresli: Evet

Özet

© 2021 Elsevier LtdIn this paper, thermal charging and discharging processes of a phase change material (PCM) dispersed with graphene nanoplatelets (GN) are investigated in a horizontal cylinder for thermal energy storage. The heat transfer and phase change processes are modeled using the enthalpy-porosity method. The momentum and energy equations are solved using a commercial code. The numerical simulations are validated by comparison with experimental and numerical data of the literature. The results showed that GN concentrations (i.e. ϕ = 0, 0.5 and 1 wt% GN) expedite the charging time while a slight reduction in melting time is obtained for ϕ = 3 wt%. The solidification time reduced by up to 50% whereas the thermal storage capacity declined by up to 14%. These results can help designing efficient thermal energy storage systems.