Numerical study on latent thermal energy storage systems with aluminum foam in local thermal equilibrium

Buonomo, Bernardo; Çelik, Hasan; Ercole, Davide; Manca, Oronzio; Mobedi, Moghtada

doi:10.1016/j.applthermaleng.2019.113980

Cited by 112 publications

(21 citation statements)

References 58 publications

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“…Amush is the mushy zone constant, it represents the velocity damping to zero in the solidification process [22,23] and its value is set to 10 5 kg/(m 3 s). The constant Amush does not affect the behavior of the melting when there is a metal foam in the system as showed by Buonomo et al [24]. The last term takes into account the buoyancy effect, where T0 is the reference temperature and γ represents the thermal expansion coefficient.…”

Section: Geometry and Mathematical Modelsmentioning

confidence: 97%

A Numerical Analysis on a Solar Chimney with an Integrated Thermal Energy Storage with Phase Change Material in Metal Foam

et al. 2020

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In this paper, a two-dimensional numerical investigation on a prototypal solar chimney system integrated with an absorbing capacity wall in a south facade of a building is presented. The capacity wall is composed of a high absorbing plate and an assigned thickness of phase change material in metal foam. The chimney consists of a converging channel with one vertical absorbing wall and the glass plate inclined of 2°. The channel height inside the chimney is equal to 4.0 m, whereas the channel gap is at the inlet equal to 0.34 m and at the outlet it is 0.20 m. The thermal energy storage system is 4.0 m high. The numerical analysis was intended to evaluate the thermal and fluid dynamic behaviors of the solar chimney integrated with a latent thermal energy storage system. The investigation has shown that in all cases PCM has not fully melted during the day and the presence of aluminum foam inside the box attenuates the variation of temperatures during the day. The results show that the three different thickness of the thermal storage system present very similar fluid dynamic and thermal behaviors. For the analyzed configurations, the phase change material does not reach a total melting during the considered day.

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Section: Geometry and Mathematical Modelsmentioning

confidence: 97%

A Numerical Analysis on a Solar Chimney with an Integrated Thermal Energy Storage with Phase Change Material in Metal Foam

et al. 2020

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“…Based on the assumptions made in Section 4.1, the natural convection heat transfer of liquid PCM was not considered, so local thermal equilibrium model was adopted. The expression is shown as follows [42,43]:…”

Section: The Phase-change Heat Transfer Model For the Backfill Bodymentioning

confidence: 99%

The Concept, Technical System and Heat Transfer Analysis on Phase-Change Heat Storage Backfill for Exploitation of Geothermal Energy

Zhang

Liu

et al. 2020

Energies

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In view of high ground stress, high geothermal temperature, and thermal hazard during deep mineral resource exploitation, the concept of phase-change heat storage backfill was put forward in this study. Further, the corresponding technical system was constructed and the main content involved in technical system, which is the optimized proportion of the backfill slurry added with phase-change materials (PCMs), was examined. Moreover, we elaborated upon the collaborative optimization of a backfill body’s mechanical and thermal properties and the mutual cooperation on backfill mining, geothermal energy exploitation, and simultaneous stope cooling. The heat transfer behavior of a backfill body plays a key role in technology system. We numerically simulated the heat transfer among a backfill body, surrounding rock, and airflow in the heat storage process, as well as the heat transfer between backfill body and cold fluid during the heat release process. The temperature distribution of a backfill body at different heat storage/heat release times—i.e., the temperature distribution and its evolution—with heat transfer were revealed and analyzed. This study can provide theoretical guidance for a phase-change heat storage backfill, as it has an important significance for the collaborative exploitation of mineral resources and geothermal energy.

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“…Majority of these studies focus on utilization of low melting temperature PCMs. Buonomo et al [7] numerically studied the effect of utilizing aluminium foam on the thermal behaviour of Rubitherm RT58 PCM. It was found that employing the porous media leads to the increase of the overall heat transfer by a magnitude of two in comparison to the case without porous media.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer Analysis of a High-Temperature Heat Pipe-Assisted Latent Heat Thermal Energy Storage System Enhanced by Metal Foam

Tiari

Mahdavi

2020

Proceeding of 5th Thermal and Fluids Engineering Conference (TFEC)

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Numerical simulations are performed to analyse the thermal characteristics of a latent heat thermal energy storage system with phase change material embedded in highly conductive porous media. A network of finned-heat pipes is also employed to enhance the heat transfer within the system. ANSYS-FLUENT 19.0 is used to create a transient multiphase computational model to simulate the thermal behavior of the storage unit. Copper foam is the porous media used to enhance the heat transfer and is impregnated with the phase change material, potassium nitrate (KNO3). The effects of porosity of the metal foam and quantity of heat pipes on the thermal characteristics of storage unit during the charging process have been studied.

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Numerical study on latent thermal energy storage systems with aluminum foam in local thermal equilibrium

Cited by 112 publications

References 58 publications

A Numerical Analysis on a Solar Chimney with an Integrated Thermal Energy Storage with Phase Change Material in Metal Foam

A Numerical Analysis on a Solar Chimney with an Integrated Thermal Energy Storage with Phase Change Material in Metal Foam

The Concept, Technical System and Heat Transfer Analysis on Phase-Change Heat Storage Backfill for Exploitation of Geothermal Energy

Heat Transfer Analysis of a High-Temperature Heat Pipe-Assisted Latent Heat Thermal Energy Storage System Enhanced by Metal Foam

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