Effect of staggered V-shaped and rectangular grooves copper surfaces on pool boiling heat transfer enhancement using ZrO2 nanofluids

Sameer Sheshrao Gajghate, Sreeram Barathula, Elaine Maria Cardoso, Bidyut Baran Saha, Swapan Bhaumik

研究成果: Contribution to journalArticle査読

抄録

Boiling heat transfer has been a trending research area for the last several decades due to its excellent heat removal capacity and direct applications in the distillation and pharmaceutical industries. The present investigation focuses on the augmentation of efficiency for the boiling requiring applications, as highlighted earlier. The experimental and numerical investigations study the effect of staggered V-shaped and rectangular grooved copper surfaces on pool boiling, compared with the smooth copper surface in the ZrO2 nanofluid media. The authors adopted fiber laser engraving technology to form the highlighted microstructures. Furthermore, three different concentrations, i.e., 0.001%, 0.005% and 0.01% by volume, were investigated in a medium having equal volumes of distilled water and ethylene glycol. The thermophysical properties of nanofluid and peculiar microstructures enhanced the relative heat transfer coefficient by 41.48%. The wall superheat drastically reduced due to the micro-level convection on the boiling heat transfer promoted by the microstructures. Besides, the numerical results fitted well with the experimental results with a little deviation (MAE = 2.04%).

本文言語英語
論文番号75
ジャーナルJournal of the Brazilian Society of Mechanical Sciences and Engineering
43
2
DOI
出版ステータス出版済み - 2 2021

All Science Journal Classification (ASJC) codes

  • 機械工学

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