Graphene nanoplatelets nanofluids thermal and hydrodynamic performance on integral fin heat sink

Waqas Arshad, Hafiz Ali

Research output: Contribution to journalJournal articlepeer-review

122 Scopus citations

Abstract

In this work, graphene nanoplatelets nanofluids (GNPs) thermal and hydrodynamic performance is observed experimentally in comparison with distilled water on integral fin heat sink. Water based GNPs nanofluids is used with 10% weight concentration. Experimentation is performed in laminar range at heat flux of 47.96 KW/m2, 59.95 KW/m2 and 71.94 KW/m2. Higher pumping power is noticed for GNPs nanofluids as compared to distilled water. From inlet to outlet of heat sink, rise of local base temperature is observed for both distilled water and GNPs nanofluids. With the increase of heat flux, GNPs nanofluids thermal performance decreases. Using GNPs nanofluids, the lowest base temperature and maximum convective heat transfer enhancement is noted as 36.81 °C and 23.91% corresponding to Reynolds number of 972 for heat flux of 47.96 KW/m2, respectively. Pumping power requirement depends upon flow rate and heat flux, and it is found to be maximum 0.04 W for GNPs nanofluids at heat flux of 47.96 KW/m2.

Original languageEnglish
Pages (from-to)995-1001
Number of pages7
JournalInternational Journal of Heat and Mass Transfer
Volume107
DOIs
StatePublished - 1 Apr 2017
Externally publishedYes

Keywords

  • GNPs nanofluids
  • Heat flux
  • Integral fin heat sink
  • Pumping power
  • Reynolds number

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