Thermal performance of bare and finned tubes submersed in nano-PCM mixture

Nóbrega, Cláudia R.E.S.; Ismail, Kamal Abdel Radi; Lino, Fátima A. M.

doi:10.1007/s40430-020-02740-5

Cited by 8 publications

(1 citation statement)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Jeong et al [ 36 ] reported that the thermal properties of three different shape-stabilized PCM composites were enhanced by adding exfoliated graphite nanoplatelets (xGnP). Nóbrega et al [ 37 ] investigated the influence of adding fins to a tube filled with a nano-PCM mixture. The findings suggested that the fins helped decrease the solidification time by 9.1%, and increasing the concentration of nanoparticles improved the solidification process regardless of the presence of fins.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Heat Transfer for NePCM-Melting-Based Thermal Energy of Finned Heat Pipe

et al. 2021

View full text Add to dashboard Cite

Using phase change materials (PCMs) in energy storage systems provides various advantages such as energy storage at a nearly constant temperature and higher energy density. In this study, we aimed to conduct a numerical simulation for augmenting a PCM’s melting performance within multiple tubes, including branched fins. The suspension contained Al2O3/n-octadecane paraffin, and four cases were considered based on a number of heated fins. A numerical algorithm based on the finite element method (FEM) was applied to solve the dimensionless governing system. The average liquid fraction was computed over the considered flow area. The key parameters are the time parameter (100 ≤t≤600 s) and the nanoparticles’ volume fraction (0%≤φ≤8%). The major outcomes revealed that the flow structures, the irreversibility of the system, and the melting process can be controlled by increasing/decreasing number of the heated fins. Additionally, case four, in which eight heated fins were considered, produced the largest average liquid fraction values.

show abstract

Section: Introductionmentioning

confidence: 99%