Numerical investigation of paraffin wax solidification in spherical and rectangular cavity

Ghosh, Debasree; Guha, Chandan; Ghose, Joyjeet

doi:10.1007/s00231-019-02680-4

Cited by 19 publications

(10 citation statements)

References 20 publications

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“…The results make it possible to describe the real behaviour of phase change over time, which is in good agreement with the results of the literature [14]. Although several works discussed the engineering and the importance of geometry and the effects of geometry part in the melting process of PCM, the present study is destined for rectangular PCM and engineering issues are intended for next works to improve the ability of this model.…”

Section: Resultssupporting

confidence: 86%

“…Figure 5 shows numerical simulations of the fraction liquid as function of time for melting and solidification process. The proposed numerical model describes correctly the two opposite processes and the study of solidliquid phase change focuses on the boundary conditions and physical properties of the final solid product [6,14].…”

Section: Resultsmentioning

confidence: 99%

“…In order to improve the production and the storage of thermal energy, a 2D numerical simulation using ANSYS FLUENT software based on finite volume approach is proposed. In addition, the Paraffin wax [14] is used in the melting process that had an important latent heat and can be found everywhere. The geometrical model is uniformly meshed using symmetric square cells as depicted in figure 8.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the control parameters are used by default. Furthermore, the SIMPLEC method is adopted in pressure, velocity coupling mode, the mode of retention is PRESTO method, and the rest are all defaults [14,17].…”

Section: Resultsmentioning

confidence: 99%

“…Temporal evolution of the PCM melting in the collector (from top to bottom) (10, 20, 30, 40, 50, 60, 70, 80, 100, and 120 min)[6,14].…”

mentioning

confidence: 99%

See 4 more Smart Citations

Coupled thermo-fluidic model for thermal energy storage based on liquid solid phase change

Zohra

Riad

Alhamany

et al. 2020

Mater. Res. Express

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The production and storage of thermal energy are important processes that contribute to the satisfaction of daily needs. They are effective ways of managing the thermal energy available from various solar applications. The most efficient storage technique is the use of phase change materials (PCMs) because these components can keep large amounts of thermal energy in stock. The problem is that this approach continues to be confronted with difficulties despite significant progress in research, design and modelling. Nevertheless, these difficulties can be resolved through numerical simulations that enable the identification of powerful tools for optimising thermal system design and predicting thermal behaviour. Correspondingly, in this work, thermo-mechanical modelling was conducted to describe the different methods of heat transfer that can optimise thermal energy storage via PCMs. This study also established a numeric resolution and the spatio-temporal discretisation of the basic equations accompanying the numerical model. The proposed numerical solution improves the prediction of thermal behaviour and can be used as a guide in designing new systems capable of producing and storing solar energy.

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Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…Temporal evolution of the PCM melting in the collector (from top to bottom) (10, 20, 30, 40, 50, 60, 70, 80, 100, and 120 min)[6,14].…”

mentioning

confidence: 99%

See 3 more Smart Citations

Coupled thermo-fluidic model for thermal energy storage based on liquid solid phase change

Zohra

Riad

Alhamany

et al. 2020

Mater. Res. Express

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Numerical investigation on latent heat thermal energy storage in a phase change material using a heat exchanger

et al. 2021

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The use of a heat exchanger using phase change material (PCM) is an example of latent heat thermal energy storage (LHTES). In this study, the charging of PCM (RT50) is studied in a double pipe heat exchanger. The designing of the heat exchanger needs to be optimized for operating and boundary conditions to store latent heat efficiently. The size of the equipment and the amount of PCM are also important to calculate the latent heat storage capacity of the LHTES device. In this study, the amount of PCM taken is quite high to avoid sensible heat transfer and to maximize the heat content of PCM. The charging process of PCM is numerically simulated using an enthalpy‐porosity model. The study includes the effect of inlet temperature and flow rate of high‐temperature‐fluid (HTF) and concludes that both play an important role in determining the charging time. The continuous increase in inlet temperature of HTF can decrease the charging time of PCM in the heat exchanger. However, the continuous increase in the HTF flow rate cannot show the same effect. The charging time can only be minimized with a specified flow rate regime for a specific inlet temperature of HTF. These factors consequently affect the efficiency of the heat exchanger.

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Numerical Investigation on the Effect of the Shape of Cavities on the Melting Process of Latent Heat Thermal Storage Material Paraffin Wax

Ghosh

Guha

Ghose

2022

Lecture Notes in Mechanical Engineering

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Numerical investigation of paraffin wax solidification in spherical and rectangular cavity

Cited by 19 publications

References 20 publications

Coupled thermo-fluidic model for thermal energy storage based on liquid solid phase change

Coupled thermo-fluidic model for thermal energy storage based on liquid solid phase change

Numerical investigation on latent heat thermal energy storage in a phase change material using a heat exchanger

Numerical Investigation on the Effect of the Shape of Cavities on the Melting Process of Latent Heat Thermal Storage Material Paraffin Wax

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