Applying branch-shaped fins for improvement of performance of heat storage unit

Li Qin; Wissam H. Alawee; Hasan Sh Majdi; Hosam A. Saad; Fuzhang Wang; Amira M. Hussin; Hayder A. Dhahad

doi:10.1016/j.est.2022.105460

Applying branch-shaped fins for improvement of performance of heat storage unit

Li Qin, Wissam H. Alawee, Hasan Sh Majdi, Hosam A. Saad, Fuzhang Wang, Amira M. Hussin, Hayder A. Dhahad

Mathematics

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The irreversibility of storage unit furnished with branch shaped fins was evaluated in this paper. The various arrangements of fins contain three levels for number of curved fins and all branches connected to inner cold wall. The conduction mechanism has been boosted with dispersing nanoparticles (TiO₂) in to paraffin (n-eicosane). The simulations for two dimensional geometries with considering laminar flow for liquid paraffin have been presented via FVM. The validation with solidification data of previous article proves the good accommodation. The required time for freezing of PCM for case with N = 2, 4 and 8 are 1.034, 1.027 and 1.020 times greater than that of NEPCM. As distance of curved fins from each other increases from 12.5 to 25 and 50 mm, the period declines around 23.34 % and 28.41 %, respectively. The minimum need time can be obtained when N = 8 and ϕ = 0.03 which takes 9965 s to reach full freezing.

Original language	English
Article number	105460
Journal	Journal of Energy Storage
Volume	55
DOIs	https://doi.org/10.1016/j.est.2022.105460
State	Published - 15 Nov 2022

Keywords

Branch shaped fins
Freezing
N-eicosane
Nanoparticles
Numerical transient modeling

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10.1016/j.est.2022.105460

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title = "Applying branch-shaped fins for improvement of performance of heat storage unit",

abstract = "The irreversibility of storage unit furnished with branch shaped fins was evaluated in this paper. The various arrangements of fins contain three levels for number of curved fins and all branches connected to inner cold wall. The conduction mechanism has been boosted with dispersing nanoparticles (TiO2) in to paraffin (n-eicosane). The simulations for two dimensional geometries with considering laminar flow for liquid paraffin have been presented via FVM. The validation with solidification data of previous article proves the good accommodation. The required time for freezing of PCM for case with N = 2, 4 and 8 are 1.034, 1.027 and 1.020 times greater than that of NEPCM. As distance of curved fins from each other increases from 12.5 to 25 and 50 mm, the period declines around 23.34 \% and 28.41 \%, respectively. The minimum need time can be obtained when N = 8 and ϕ = 0.03 which takes 9965 s to reach full freezing.",

keywords = "Branch shaped fins, Freezing, N-eicosane, Nanoparticles, Numerical transient modeling",

author = "Li Qin and Alawee, \{Wissam H.\} and Majdi, \{Hasan Sh\} and Saad, \{Hosam A.\} and Fuzhang Wang and Hussin, \{Amira M.\} and Dhahad, \{Hayder A.\}",

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doi = "10.1016/j.est.2022.105460",

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AU - Qin, Li

AU - Alawee, Wissam H.

AU - Majdi, Hasan Sh

AU - Saad, Hosam A.

AU - Wang, Fuzhang

AU - Hussin, Amira M.

AU - Dhahad, Hayder A.

PY - 2022/11/15

Y1 - 2022/11/15

N2 - The irreversibility of storage unit furnished with branch shaped fins was evaluated in this paper. The various arrangements of fins contain three levels for number of curved fins and all branches connected to inner cold wall. The conduction mechanism has been boosted with dispersing nanoparticles (TiO2) in to paraffin (n-eicosane). The simulations for two dimensional geometries with considering laminar flow for liquid paraffin have been presented via FVM. The validation with solidification data of previous article proves the good accommodation. The required time for freezing of PCM for case with N = 2, 4 and 8 are 1.034, 1.027 and 1.020 times greater than that of NEPCM. As distance of curved fins from each other increases from 12.5 to 25 and 50 mm, the period declines around 23.34 % and 28.41 %, respectively. The minimum need time can be obtained when N = 8 and ϕ = 0.03 which takes 9965 s to reach full freezing.

AB - The irreversibility of storage unit furnished with branch shaped fins was evaluated in this paper. The various arrangements of fins contain three levels for number of curved fins and all branches connected to inner cold wall. The conduction mechanism has been boosted with dispersing nanoparticles (TiO2) in to paraffin (n-eicosane). The simulations for two dimensional geometries with considering laminar flow for liquid paraffin have been presented via FVM. The validation with solidification data of previous article proves the good accommodation. The required time for freezing of PCM for case with N = 2, 4 and 8 are 1.034, 1.027 and 1.020 times greater than that of NEPCM. As distance of curved fins from each other increases from 12.5 to 25 and 50 mm, the period declines around 23.34 % and 28.41 %, respectively. The minimum need time can be obtained when N = 8 and ϕ = 0.03 which takes 9965 s to reach full freezing.

KW - Branch shaped fins

KW - Freezing

KW - N-eicosane

KW - Nanoparticles

KW - Numerical transient modeling

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VL - 55

JO - Journal of Energy Storage

JF - Journal of Energy Storage

M1 - 105460

ER -

Applying branch-shaped fins for improvement of performance of heat storage unit

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Keywords

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