MHD hybrid nanofluid convection and phase change process in an L-shaped vented cavity equipped with an inner rotating cylinder and PCM-packed bed system

Ouri, Hana; Selimefendigil, Fatih; Bouterra, Mourad; Omri, Mohamed; Alshammari, Badr M.; Kolsi, Lioua

doi:10.1016/j.aej.2022.08.016

Cited by 24 publications

(4 citation statements)

References 78 publications

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“…A similar heat transfer enhancement technique has been applied to the HTF in PCMpacked bed systems. This can be seen by introducing rotating cylinders [44,45], surfaces [46,47], and disks [48] to the HTF flow before reaching the PCM. Another study analyzed the mixed convection of water and nano-encapsulated PCM with a rotating cylinder [49].…”

Section: Rotating Cylinder Within Pcmmentioning

confidence: 99%

A Review on Active Heat Transfer Enhancement Techniques within Latent Heat Thermal Energy Storage Systems

Shank

Tiari

2023

Energies

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Renewable energy resources require energy storage techniques to curb problems with intermittency. One potential solution is the use of phase change materials (PCMs) in latent heat thermal energy storage (LHTES) systems. Despite the high energy storage density of PCMs, their thermal response rate is restricted by low thermal conductivity. The topic of heat transfer enhancement techniques for increasing thermal performance of LHTES systems has mainly focused on passive heat transfer enhancement techniques with less attention towards active methods. Active heat transfer enhancement techniques require external power supplied to the system. In this paper, recent advances in active heat transfer enhancement techniques within LHTES systems are reviewed, including mechanical aids, vibration, jet impingement, injection, and external fields. The pertinent findings related to the field are summarized in relation to the charging and discharging processes of PCMs. Suggestions for future research are proposed, and the importance of additional energy input for storage is discussed.

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Section: Rotating Cylinder Within Pcmmentioning

confidence: 99%

A Review on Active Heat Transfer Enhancement Techniques within Latent Heat Thermal Energy Storage Systems

Shank

Tiari

2023

Energies

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“…The effectiveness of channel cooling for PV systems can be increased by using different fluid types. Nanofluids (NFs) have been used in diverse thermal engineering systems, including channel cooling for performance improvements [ 21 , 22 , 23 , 24 , 25 , 26 ]. Many aspects of NF models in cooling have been considered, and the accurate modeling of NF features has been studied [ 27 , 28 , 29 , 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

Conjugate Heat Transfer Analysis for Cooling of a Conductive Panel by Combined Utilization of Nanoimpinging Jets and Double Rotating Cylinders

et al. 2023

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In this work, double rotating active cylinders and slot nanojet impingement are considered for the cooling system of a conductive panel. Colder surface temperatures of the cylinders are used, while different rotational speeds are assigned for each of the cylinders. The impacts of cylinder rotational speeds, size and distance between them on the cooling performance are evaluated. The rotational effects and size of the cylinders are found to be very effective on the overall thermal performance. At the highest rotational speeds of the cylinders, the average Nusselt number (Nu) rises by about 30.8%, while the panel temperature drops by about 5.84 ∘C. When increasing the cylinder sizes, temperature drops become 7 ∘C, while they are only 1.75 ∘C when varying the distance between the cylinders. Subcooling and nanofluid utilization contributes positively to the cooling performance, while 1.25 ∘C and 10 ∘C temperature drops are found by varying the subcooled temperature and solid volume fraction. An artificial neural network is used for the estimation of maximum and average panel temperatures when double cylinder parameters are used as the input.

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“…They considered the influences of cylinder rotational velocities on the cooling operation. Ouri et al [18] examined the phase change process and convection flow of hybrid nanofluid inside an L-shaped vented cavity containing a rotating cylinder. Selimefendigil et al [19] analyzed the convective cooling of double-rotating cylinders within a porous medium by adopting hybrid nano-jets.…”

Section: Introductionmentioning

confidence: 99%

Circular rotation of different structures on natural convection of nanofluid-mobilized circular cylinder cavity saturated with a heterogeneous porous medium

Aly,

Raizah,

Chamkha

2023

Heliyon

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MHD hybrid nanofluid convection and phase change process in an L-shaped vented cavity equipped with an inner rotating cylinder and PCM-packed bed system

Cited by 24 publications

References 78 publications

A Review on Active Heat Transfer Enhancement Techniques within Latent Heat Thermal Energy Storage Systems

A Review on Active Heat Transfer Enhancement Techniques within Latent Heat Thermal Energy Storage Systems

Conjugate Heat Transfer Analysis for Cooling of a Conductive Panel by Combined Utilization of Nanoimpinging Jets and Double Rotating Cylinders

Circular rotation of different structures on natural convection of nanofluid-mobilized circular cylinder cavity saturated with a heterogeneous porous medium

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