Simulation of solidification process of phase change materials in a heat exchanger using branch-shaped fins

Asgari, Mehdi; Javidan, M.; Nozari, Mohammad; Asgari, A.; Ganji, D.D.

doi:10.1016/j.csite.2020.100835

Cited by 31 publications

(12 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An analogy between the present work and Asgari's work 18 [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Discussionmentioning

confidence: 51%

“…In the areas in which there is an interaction between solid and fluid, to reach higher accuracy in calculations, it is necessary to have a high density of meshes and meshes in a format that most of the meshes are formed close to the cold wall and cross-shaped fins, Figure 7. F I G U R E 5 An analogy between the present work and Asgari's work 18 4.4 | The number of meshes in areas with high temperature gradient…”

Section: The Impact Of the Mesh Densitymentioning

confidence: 72%

“…Hatami, 17 in a numerical study, evaluated the effects of nanoparticles on heat transfer and heat distribution. In a numerical study, Asgari et al 18 investigated the influences of using conductive nanoparticles to increase the thermal penetration of phase change materials (PCMs). In this simulation, they examined the solidification process of water in a heat exchanger and found that with the rise of viscosity, the rate of heat transfer would increase.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermal energy storage of phase change materials in the solidification process inside the quasi‐square heat exchanger: CFD simulation

et al. 2023

View full text Add to dashboard Cite

The high latent heat of phase change materials (PCMs) makes them one of the most important sources of heat energy storage systems. However, due to the slow rate of heat transfer in these materials, using conductive materials such as fins and nanoparticles could improve the thermal efficiency of these energy storage systems. So in this article, cross‐shaped fins and Copper(II) oxide nanoparticles with different synthesized forms and various volume fractions have been employed to increase the thermal efficiency of paraffin PCMs. In this simulation, three fin models based on the installed size, the shape of the synthesized nanoparticles in brick, cylindrical, and platelet forms, and the nanoparticle volume fraction of the Copper(II) oxide is 1%–4% are studied. Increasing the volumetric ratio of nanoparticle and shape coefficient decrease the time of solidification, while increasing the length of the cross‐shaped fins raises the solidification rate and improves heat transfer. Finally, it was found that when the inner and outer walls play a role in the solidification process at the same time, the solidification rate will increase by more than 66% as more zone of the surface is exposed to cold.

show abstract

“…An analogy between the present work and Asgari's work 18 [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Discussionmentioning

confidence: 51%

Section: The Impact Of the Mesh Densitymentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermal energy storage of phase change materials in the solidification process inside the quasi‐square heat exchanger: CFD simulation

et al. 2023

View full text Add to dashboard Cite

show abstract

“…It can be seen from the above research that fins have a great influence on the performance of heat exchangers. [19][20][21][22][23] The shape of fin is the focus of research, but the special shape of fin will greatly increase the cost of manufacturing. There are few studies on fins with unequal spacing.…”

Section: Introductionmentioning

confidence: 99%

Simulation and optimization of square fin concentric tube heat storage exchanger

Yang,

Jiang,

Yang

et al. 2023

Advances in Mechanical Engineering

View full text Add to dashboard Cite

The square fin was used to improve the heat transfer rate of the concentric tube phase change heat exchanger. The effects of fin spacing, fin arrangement, and fin length on the melting process of phase change material (PCM) were studied. The influence and mechanism of non-uniform fin arrangement were discussed in detail. The liquid phase distribution and temperature distribution of PCM with time were analyzed. The results indicated that the heat exchanger with square fins can significantly improve the heat storage rate and shortened the complete melting time of PCM. Compared with heat exchangers without fins, the melting time of PCM in a 40 mm equidistant fin heat exchanger was shortened by 15.85%, and that in a 70 mm, non-uniformly spaced fin heat exchanger was shortened by 36.79%. Due to the different distances between the square fins and the outer boundary of the concentric tube, the temperature distribution near the square fin showed anisotropy, which enhanced the melting rate of PCM. The sensitivity order was fin arrangement > fin length > fin spacing. The research results can provide a reference for the design of phase change heat exchangers.

show abstract

“…It was observed that melting time and sensible energy in eccentric two tubes with the rectangular shell are decreased in comparison to the concentric tubes with the circular shell. Asgari et al 21 investigated the effect of fins with different thicknesses and lengths on the thermal conductivity of PCMs. They concluded that the lower thickness of the fin is a more viable option for increasing the heat transfer rate.…”

Section: Introductionmentioning

confidence: 99%

Thermophysical properties and thermal performance evaluation of multiwalled carbon nanotube‐based organic phase change materials using T‐History method

Yadav

Sahoo

2021

Intl J of Energy Research

View full text Add to dashboard Cite

show abstract

Simulation of solidification process of phase change materials in a heat exchanger using branch-shaped fins

Cited by 31 publications

References 49 publications

Thermal energy storage of phase change materials in the solidification process inside the quasi‐square heat exchanger: CFD simulation

Thermal energy storage of phase change materials in the solidification process inside the quasi‐square heat exchanger: CFD simulation

Simulation and optimization of square fin concentric tube heat storage exchanger

Thermophysical properties and thermal performance evaluation of multiwalled carbon nanotube‐based organic phase change materials using T‐History method

Contact Info

Product

Resources

About