Copper foam/PCMs based heat sinks: An experimental study for electronic cooling systems

Tauseef ur Rehman; Hafiz Muhammad Ali; Ahmed Saieed; William Pao; Muzaffar Ali

doi:10.1016/j.ijheatmasstransfer.2018.07.120

Copper foam/PCMs based heat sinks: An experimental study for electronic cooling systems

Tauseef ur Rehman, Hafiz Muhammad Ali^*, Ahmed Saieed, William Pao, Muzaffar Ali

^*Corresponding author for this work

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

250 Scopus citations

Abstract

Copper foam (with porosity 97% and pore density 35 pores per inch) based heat sink without phase change material (PCM) and copper foam/PCM composites heat sinks are investigated to observe the behavior of operational time of heat sinks with respect to specific temperature both for charging and discharging. Paraffin wax, RT-35HC, RT-44HC and RT-54HC are used as PCM. Investigations are performed at heat flux of 0.8–2.4 KW/m² with a gap of 0.4 KW/m² uniformly distributed. PCM volume fractions of 0.68 and 0.83 are used in composites. Results indicated that at the end of 90 min charging, maximum temperature reduction of 25% is noted for RT-35HC/Copper foam at 0.8 KW/m² for PCM volume fraction 0.83. Afterwards, RT-44HC/Copper foam reveals maximum temperature reduction of 24% for 1.6 KW/m². RT-35HC/Copper foam is least efficient at 2.4 KW/m² which reduces the base temperature only by 5–7%. Maximum enhancement ratio in operation time is noticed as 8 and 7.7 for RT-35HC/Copper foam and RT-44HC/Copper foam respectively at set point temperature (SPT) of 40 °C and 60 °C for respective composites.

Original language	English
Pages (from-to)	381-393
Number of pages	13
Journal	International Journal of Heat and Mass Transfer
Volume	127
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2018.07.120
State	Published - Dec 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

Copper foam
Electronic cooling
Enhancement ratio
Heat sink
Phase change materials

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1016/j.ijheatmasstransfer.2018.07.120

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title = "Copper foam/PCMs based heat sinks: An experimental study for electronic cooling systems",

abstract = "Copper foam (with porosity 97\% and pore density 35 pores per inch) based heat sink without phase change material (PCM) and copper foam/PCM composites heat sinks are investigated to observe the behavior of operational time of heat sinks with respect to specific temperature both for charging and discharging. Paraffin wax, RT-35HC, RT-44HC and RT-54HC are used as PCM. Investigations are performed at heat flux of 0.8–2.4 KW/m2 with a gap of 0.4 KW/m2 uniformly distributed. PCM volume fractions of 0.68 and 0.83 are used in composites. Results indicated that at the end of 90 min charging, maximum temperature reduction of 25\% is noted for RT-35HC/Copper foam at 0.8 KW/m2 for PCM volume fraction 0.83. Afterwards, RT-44HC/Copper foam reveals maximum temperature reduction of 24\% for 1.6 KW/m2. RT-35HC/Copper foam is least efficient at 2.4 KW/m2 which reduces the base temperature only by 5–7\%. Maximum enhancement ratio in operation time is noticed as 8 and 7.7 for RT-35HC/Copper foam and RT-44HC/Copper foam respectively at set point temperature (SPT) of 40 °C and 60 °C for respective composites.",

keywords = "Copper foam, Electronic cooling, Enhancement ratio, Heat sink, Phase change materials",

author = "Rehman, \{Tauseef ur\} and Ali, \{Hafiz Muhammad\} and Ahmed Saieed and William Pao and Muzaffar Ali",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = dec,

doi = "10.1016/j.ijheatmasstransfer.2018.07.120",

language = "English",

volume = "127",

pages = "381--393",

journal = "International Journal of Heat and Mass Transfer",

issn = "0017-9310",

}

TY - JOUR

T1 - Copper foam/PCMs based heat sinks

T2 - An experimental study for electronic cooling systems

AU - Rehman, Tauseef ur

AU - Ali, Hafiz Muhammad

AU - Saieed, Ahmed

AU - Pao, William

AU - Ali, Muzaffar

PY - 2018/12

Y1 - 2018/12

N2 - Copper foam (with porosity 97% and pore density 35 pores per inch) based heat sink without phase change material (PCM) and copper foam/PCM composites heat sinks are investigated to observe the behavior of operational time of heat sinks with respect to specific temperature both for charging and discharging. Paraffin wax, RT-35HC, RT-44HC and RT-54HC are used as PCM. Investigations are performed at heat flux of 0.8–2.4 KW/m2 with a gap of 0.4 KW/m2 uniformly distributed. PCM volume fractions of 0.68 and 0.83 are used in composites. Results indicated that at the end of 90 min charging, maximum temperature reduction of 25% is noted for RT-35HC/Copper foam at 0.8 KW/m2 for PCM volume fraction 0.83. Afterwards, RT-44HC/Copper foam reveals maximum temperature reduction of 24% for 1.6 KW/m2. RT-35HC/Copper foam is least efficient at 2.4 KW/m2 which reduces the base temperature only by 5–7%. Maximum enhancement ratio in operation time is noticed as 8 and 7.7 for RT-35HC/Copper foam and RT-44HC/Copper foam respectively at set point temperature (SPT) of 40 °C and 60 °C for respective composites.

AB - Copper foam (with porosity 97% and pore density 35 pores per inch) based heat sink without phase change material (PCM) and copper foam/PCM composites heat sinks are investigated to observe the behavior of operational time of heat sinks with respect to specific temperature both for charging and discharging. Paraffin wax, RT-35HC, RT-44HC and RT-54HC are used as PCM. Investigations are performed at heat flux of 0.8–2.4 KW/m2 with a gap of 0.4 KW/m2 uniformly distributed. PCM volume fractions of 0.68 and 0.83 are used in composites. Results indicated that at the end of 90 min charging, maximum temperature reduction of 25% is noted for RT-35HC/Copper foam at 0.8 KW/m2 for PCM volume fraction 0.83. Afterwards, RT-44HC/Copper foam reveals maximum temperature reduction of 24% for 1.6 KW/m2. RT-35HC/Copper foam is least efficient at 2.4 KW/m2 which reduces the base temperature only by 5–7%. Maximum enhancement ratio in operation time is noticed as 8 and 7.7 for RT-35HC/Copper foam and RT-44HC/Copper foam respectively at set point temperature (SPT) of 40 °C and 60 °C for respective composites.

KW - Copper foam

KW - Electronic cooling

KW - Enhancement ratio

KW - Heat sink

KW - Phase change materials

UR - https://www.scopus.com/pages/publications/85051679976

U2 - 10.1016/j.ijheatmasstransfer.2018.07.120

DO - 10.1016/j.ijheatmasstransfer.2018.07.120

M3 - Article

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SN - 0017-9310

VL - 127

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JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

ER -

Copper foam/PCMs based heat sinks: An experimental study for electronic cooling systems

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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