Numerical investigation of heat transfer and melting process of phase change material in trapezoidal cavities with different shapes and different heated tube positions

Chatterjee, Sourav; Bhanja, Dipankar; Nath, Sujit

doi:10.1016/j.est.2023.108285

Cited by 11 publications

(1 citation statement)

References 33 publications

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“…Phase change materials (PCMs), which can be classified as organic, inorganic, and eutectic, are highly capable of storing and releasing thermal energy during the isothermal phase transition process, making them a prevalent and effective method for storing thermal energy in latent heat storage systems [ 2 , 3 , 4 ]. Due to their high price, complex synthesis process, and poor thermal reliability, eutectic PCMs are less frequently used.…”

Section: Introductionmentioning

confidence: 99%

N-Octadecane Encapsulated by Assembled BN/GO Aerogels for Highly Improved Thermal Conductivity and Energy Storage Capacity

Hui

Zhang

et al. 2023

Nanomaterials

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The rapid development of industry has emphasized the importance of phase change materials (PCMs) with a high latent-heat storage capacity and good thermal stability in promoting sustainable energy solutions. However, the inherent low thermal conductivity and poor thermal-cycling stability of PCMs limit their application. In this study, we constructed three-dimensional (3D) hybrid graphene aerogels (GBA) based on synergistic assembly and cross-linking between GO and modified hexagonal boron nitride (h-BN). Highly thermally conductive GBA was utilized as the supporting optimal matrix for encapsulating OD, and further implied that composite matrix n-octadecane (OD)/GBA composite PCMs were further prepared by encapsulating OD within the GBA structure. Due to the highly thermally conductive network of GBA, the latent heat of the composite PCMs improved to 208.3 J/g, with negligible changes after 100 thermal cycles. In addition, the thermal conductivity of the composite PCMs was significantly enhanced to 1.444 W/(m·k), increasing by 738% compared to OD. These results sufficiently confirmed that the novel GBA with a well-defined porous structure served as PCMs with excellent comprehensive performance offer great potential for thermal energy storage applications.

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Section: Introductionmentioning

confidence: 99%