Analytical model for melting in a semi-infinite PCM storage with an internal fin

Lamberg, Piia; Sirén, Kai

doi:10.1007/s00231-002-0291-1

Cited by 100 publications

(45 citation statements)

References 4 publications

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“…In the last decades, a higher number of analytical [30][31][32][33][34][35][36][37] as well as numerical methods [38][39][40][41][42][43] were developed to describe the melting and freezing process of a material under the influence of gravity. The main problem concerning the numerical simulation of the melting and/or solidification process is the change with time of the position of the phase interface.…”

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confidence: 99%

Influence of the Fin Design on the Melting and Solidification Process of NaNO3 in a Thermal Energy Storage System

Walter¹,

Beck²,

Hameter³

2015

JEPE

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Abstract:The melting and solidification process of sodium nitrate, which is used as energy storage material, is studied in a vertical arranged energy storage device with two different bimetal finned tube designs (with and without additional lateral fins) for enhancing the heat transfer. The finned tube design consists of a plain steel tube while the material for the longitudinal (axial) fins is aluminum. The investigation analyses the influence of the lateral fins on the charging and discharging process. Three-dimensional transient numerical simulations are performed using the ANSYS Fluent 14.5 software. The results show that, every obstruction given by lateral fins reduces the melting and solidification velocity in direction to the outer shell.

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confidence: 99%

Influence of the Fin Design on the Melting and Solidification Process of NaNO3 in a Thermal Energy Storage System

Walter¹,

Beck²,

Hameter³

2015

JEPE

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“…Many researchers made a theoretical study on the thermal performance of the PCM [33][34][35][36][37][38], and they proposed different methods to enhance its heat transfer efficiency [39]. The finned tubes of different configurations are used to enhance the heat transfer of the latent heat storage system [40][41][42][43][44][45][46][47][48][49][50].…”

Section: Required Characteristics Of Pcmmentioning

confidence: 99%

An Organic Composite Phase Change Material for Hot Food Storage, A Review

al.¹

2018

IJMPERD

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The paper reviews about the implementation of Latent Heat Storage System in the food storage techniques, due to its high-energy density and isothermal nature. It helps in sustaining the temperature of the hot food for a long time, thus preventing the pathogen growth. Adverse effects are faced by the children due to the pathogen growth in the food.Reasons for the cause of foodborne illness in the children were discussed. The characteristics of the phase change material (PCM) for the latent heat storage was described in detail. Finally, preparation and commercial feasibility of the PCM were studied and presented.

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“…To design TES systems with high performances, it is necessary to accurately predict the temperature distribution and the rate of melting or solidification [32][33][34][35][36]. Currently, all theoretical works are limited to study the moving boundary problem for specific conditions and designs.…”

Section: General Considerationmentioning

confidence: 99%

“…The influence of natural convection on the location of melt front has been well investigated [36]. To study the melting characteristics in a semi-infinite PCM storage system with an internal fin, an analytical model is used, which consists of the well-known Newmann solution, with assumptions that the heat is transferred only by conduction and natural convection can be negligible.…”

Section: Increasing Heat Transfer Surfacesmentioning

confidence: 99%

Waste Thermal Energy Harvesting (III): Storage with Phase Change Materials

Kong

Hng

et al. 2014

Waste Energy Harvesting

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In last two chapters, both methods to harvest waste thermal energy through the conversion to electricity. In this chapter, energy storage (ES) as an alternative method to harvest waste thermal energy, especially by using phase change materials (PCMs), will be presented.ES, as suggested by the name, is to store a certain form of energy, which thus be used later when necessary. A device that can be used to store any form of energy is generally called an accumulator. There are various forms of energy, commonly including kinetic energy, potential energy (e.g., gravitational or chemical), electrical energy, thermal energy, and so on. All these forms of energy could be stored by using an appropriate method [1,2]. For instance, mechanical energy can be stored by using hydrostorage, compressed air storage, and flywheels, while electrical energy is stored by using various batteries and supercapacitors. Thermal energy storage (TES) is the main content of this chapter.This chapter is arranged as follows. A brief description on various TES conceptions, together with a comparison, will be presented first. Among them, PCMs for TES will be emphasized. After that, PCMs with their classification according to their composition will be discussed. Design criteria, heat transfer phenomena, configuration of various PCM TES systems, which have been reported in open literature, will be summarized. Specific attention will be paid to the exergy analysis. The main applications of the PCM storage systems will be listed, analyzed, and compared. Strategies that have been used to improve the performance of such storage systems will be thoroughly evaluated. It will be ended with concluding remarks and perspectives of development of this technology.

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Analytical model for melting in a semi-infinite PCM storage with an internal fin

Cited by 100 publications

References 4 publications

Influence of the Fin Design on the Melting and Solidification Process of NaNO3 in a Thermal Energy Storage System

Influence of the Fin Design on the Melting and Solidification Process of NaNO3 in a Thermal Energy Storage System

An Organic Composite Phase Change Material for Hot Food Storage, A Review

Waste Thermal Energy Harvesting (III): Storage with Phase Change Materials

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