Experimental study on the melting behavior of a phase change material in a conical coil latent heat thermal energy storage unit

Mustafa S. Mahdi; Hameed B. Mahood; Alasdair N. Campbell; Anees A. Khadom

doi:10.1016/j.applthermaleng.2019.114684

Experimental study on the melting behavior of a phase change material in a conical coil latent heat thermal energy storage unit

Mustafa S. Mahdi, Hameed B. Mahood^*, Alasdair N. Campbell, Anees A. Khadom

^*Corresponding author for this work

Chemical Engineering

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

Abstract

An experimental study on the melting behavior of paraffin wax used as a phase change material (PCM) in a conical coil latent heat energy storage unit (LHSU) was performed. The experiments were conducted concurrently for conical coil and normal coil LHSUs to compare their thermal performances. The effect of heat transfer fluid (HTF) inlet temperature was examined. The evolution of the temperature during charging, the spatial variation in temperatures and captured images of the melting PCM in both LHSUs were compared. The results indicated that the melting rate in the conical coil LHSU was enhanced by 20.97%, 22.13% and 28.32% in comparison with that of normal coil LHSU at HTF inlet temperature of 70 °C, 75 °C and 80 °C respectively. Moreover, the rate of energy stored in the conical coil LHSU was a notably faster than that of the normal coil LHSU. The HTF inlet temperature has a similar effect on both LHSUs by substantially decreasing their melting time.

Original language	English
Article number	114684
Journal	Applied Thermal Engineering
Volume	175
DOIs	https://doi.org/10.1016/j.applthermaleng.2019.114684
Publication status	Published - 5 Jul 2020

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Ltd

Keywords

Conical coil
Helical coil
Latent heat storage
Natural convection
Phase change material (PCM)

ASJC Scopus subject areas

Energy Engineering and Power Technology
Industrial and Manufacturing Engineering

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10.1016/j.applthermaleng.2019.114684

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@article{1437d13a9a79427abfb8e747cb919a79,

title = "Experimental study on the melting behavior of a phase change material in a conical coil latent heat thermal energy storage unit",

abstract = "An experimental study on the melting behavior of paraffin wax used as a phase change material (PCM) in a conical coil latent heat energy storage unit (LHSU) was performed. The experiments were conducted concurrently for conical coil and normal coil LHSUs to compare their thermal performances. The effect of heat transfer fluid (HTF) inlet temperature was examined. The evolution of the temperature during charging, the spatial variation in temperatures and captured images of the melting PCM in both LHSUs were compared. The results indicated that the melting rate in the conical coil LHSU was enhanced by 20.97%, 22.13% and 28.32% in comparison with that of normal coil LHSU at HTF inlet temperature of 70 °C, 75 °C and 80 °C respectively. Moreover, the rate of energy stored in the conical coil LHSU was a notably faster than that of the normal coil LHSU. The HTF inlet temperature has a similar effect on both LHSUs by substantially decreasing their melting time.",

keywords = "Conical coil, Helical coil, Latent heat storage, Natural convection, Phase change material (PCM)",

author = "Mahdi, {Mustafa S.} and Mahood, {Hameed B.} and Campbell, {Alasdair N.} and Khadom, {Anees A.}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2020",

month = jul,

day = "5",

doi = "10.1016/j.applthermaleng.2019.114684",

language = "English",

volume = "175",

journal = "Applied Thermal Engineering",

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T1 - Experimental study on the melting behavior of a phase change material in a conical coil latent heat thermal energy storage unit

AU - Mahdi, Mustafa S.

AU - Mahood, Hameed B.

AU - Campbell, Alasdair N.

AU - Khadom, Anees A.

PY - 2020/7/5

Y1 - 2020/7/5

N2 - An experimental study on the melting behavior of paraffin wax used as a phase change material (PCM) in a conical coil latent heat energy storage unit (LHSU) was performed. The experiments were conducted concurrently for conical coil and normal coil LHSUs to compare their thermal performances. The effect of heat transfer fluid (HTF) inlet temperature was examined. The evolution of the temperature during charging, the spatial variation in temperatures and captured images of the melting PCM in both LHSUs were compared. The results indicated that the melting rate in the conical coil LHSU was enhanced by 20.97%, 22.13% and 28.32% in comparison with that of normal coil LHSU at HTF inlet temperature of 70 °C, 75 °C and 80 °C respectively. Moreover, the rate of energy stored in the conical coil LHSU was a notably faster than that of the normal coil LHSU. The HTF inlet temperature has a similar effect on both LHSUs by substantially decreasing their melting time.

AB - An experimental study on the melting behavior of paraffin wax used as a phase change material (PCM) in a conical coil latent heat energy storage unit (LHSU) was performed. The experiments were conducted concurrently for conical coil and normal coil LHSUs to compare their thermal performances. The effect of heat transfer fluid (HTF) inlet temperature was examined. The evolution of the temperature during charging, the spatial variation in temperatures and captured images of the melting PCM in both LHSUs were compared. The results indicated that the melting rate in the conical coil LHSU was enhanced by 20.97%, 22.13% and 28.32% in comparison with that of normal coil LHSU at HTF inlet temperature of 70 °C, 75 °C and 80 °C respectively. Moreover, the rate of energy stored in the conical coil LHSU was a notably faster than that of the normal coil LHSU. The HTF inlet temperature has a similar effect on both LHSUs by substantially decreasing their melting time.

KW - Conical coil

KW - Helical coil

KW - Latent heat storage

KW - Natural convection

KW - Phase change material (PCM)

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DO - 10.1016/j.applthermaleng.2019.114684

M3 - Article

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SN - 1359-4311

VL - 175

JO - Applied Thermal Engineering

JF - Applied Thermal Engineering

M1 - 114684

ER -

Experimental study on the melting behavior of a phase change material in a conical coil latent heat thermal energy storage unit

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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