Melting characteristics of organic phase change material in a wavy trapezoidal cavity

Haddad, Zoubida; Iachachene, Farida; Öztop, Hakan F.

doi:10.1016/j.molliq.2019.112132

Cited by 15 publications

(2 citation statements)

References 35 publications

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“…Considering the above mentioned assumptions, the governing equations for conservation of mass, momentum, and energy can be written as [21]:…”

Section: Governing Equations and Physical Modelmentioning

confidence: 99%

Effect of cavity orientation on solidification/melting process of n-eicosane phase change material

Iachachene

2021

J. Ren. Energies

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In this paper, the melting and solidification of n-eicosane as a PCM inside two orientations of square containers is investigated numerically, using enthalpy–porosity method. The study reveals how the melting and solidification rate could be affected by changing the orientation of the phase change material container with a constant temperature boundary. It was found that the orientation of the square cavity has a significant effect on the melting and solidification rate of a PCM, the improvement is more than 40% for both cycles. Therefore the orientation of the heat exchange surface is a good control parameter for both the solidification and melting process

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“…Considering the above mentioned assumptions, the governing equations for conservation of mass, momentum, and energy can be written as [21]:…”

Section: Governing Equations and Physical Modelmentioning

confidence: 99%

Effect of cavity orientation on solidification/melting process of n-eicosane phase change material

Iachachene

2021

J. Ren. Energies

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“…The baffle resulted in a significant improvement in the melting process of gallium. Haddad and Iachachene [ 34 ] undertook numerical simulation of organic PCM melting in a trapezoidal enclosure with a wavy bottom wall. All cavity walls were insulted, except the wavy wall, which was maintained at a hot temperature.…”

Section: Introductionmentioning

confidence: 99%

Melting phase change heat transfer in a quasi-petal tube thermal energy storage unit

et al. 2021

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In the present study, the thermal energy storage of a hot petal tube inside a shell-tube type Thermal Energy Storage (TES) unit was addressed. The shell is filled with the capric acid Phase Change Material (PCM) and absorbs the heat from a hot U-tube petal. The governing equations for the natural convection flow of molten PCM and phase change heat transfer were introduced by using the enthalpy-porosity approach. An automatic adaptive mesh scheme was used to track the melting interface. The accuracy and convergence of numerical computations were also controlled by a free step Backward Differentiation Formula. The modeling results were compared with previous experimental data. It was found that the present adaptive mesh approach can adequately the melting heat transfer, and an excellent agreement was found with available literature. The effect of geometrical designs of the petal tube was investigated on the melting response of the thermal energy storage unit. The phase change behavior was analyzed by using temperature distribution contours. The results showed that petal tubes could notably increase the melting rate in the TES unit compared to a typical circular tube. Besides, the more the petal numbers, the better the heat transfer. Using a petal tube could increase the charging power by 44% compared to a circular tube. The placement angle of the tubes is another important design factor which should be selected carefully. For instance, vertical placement of tubes could improve the charging power by 300% compared to a case with the tubes’ horizontal placement.

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The Effect of Geometric Parameters of a Container on Thermal Charging of Latent Heat Thermal Energy Storage System: A Review

Kumar

Singh

Kumar

2022

Lecture Notes in Mechanical Engineering

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Melting characteristics of organic phase change material in a wavy trapezoidal cavity

Cited by 15 publications

References 35 publications

Effect of cavity orientation on solidification/melting process of n-eicosane phase change material

Effect of cavity orientation on solidification/melting process of n-eicosane phase change material

Melting phase change heat transfer in a quasi-petal tube thermal energy storage unit

The Effect of Geometric Parameters of a Container on Thermal Charging of Latent Heat Thermal Energy Storage System: A Review

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