Geometrical parametric study on nucleate pool boiling on hydrophilic micro/nanotextured surfaces with hydrophobic patterns

Name: Hak Rae Cho

Organization : Pukyong National University. Department of Mechanical Design Engineering

Name: Do Yeon Kim

Organization : Pukyong National University. Department of Mechanical Design Engineering

Name: Chang Hun Lee

Organization : Pukyong National University. Department of Mechanical Design Engineering

Name: Ho Seon Ahn

Organization : Incheon National University. Department of Mechanical Engineering

Name: Su Cheong Park

Organization : Pukyong National University. Department of Mechanical Design Engineering

Email : sucheongpark@gmail.com

Name: Dong In Yu

Organization : Pukyong National University. Department of Mechanical Design Engineering

LCSH: Heat -- Transmission

LCSH: Nucleate boiling

LCSH: Hydrophobic surfaces

Abstract: The nucleate boiling heat transfer mechanism has high heat transfer performance and has been applied to various industrial fields. Various investigations are being conducted to increase the critical heat flux and nucleate boiling heat transfer coefficient, which are indicators of nucleate boiling heat transfer performance. In this study, to enhance the two nucleate boiling heat transfer performance simultaneously, we fabricated hydrophilic structures (micro/nano/hierarchical) with hydrophobic patterns on silicon substrate. To investigate the effect of surface morphology and heterogeneous wettability on nucleate boiling phenomena, parametric study was conducted depending on the spacing of hydrophilic structures, the presence or absence of hydrophobic patterns, and the presence or absence of nanostructures. Moreover, a wettability experiment was performed on fabricated surfacers to identify the mechanism of increasing nucleate boiling performance. It has been experimentally confirmed that the hierarchical hydrophilic structured surface with hydrophobic patterns has the advantages of both a hydrophobic surface and a hydrophilic surface.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2022

Modified: 2023-05-25

Issued: 2023-05-25

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BibliograpyCitation : In King Mongkut's University of Technology Thonburi. Faculty of Engineering. Department of Mechanical Engineering. The 12th TSME International Conference on Mechanical Engineering (TSME-ICoME12 2022) (pp.429-435). Bangkok : King Mongkut's University of Technology Thonburi

eng

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