Effects of nanowire height on pool boiling performance of water on silicon chips
Journal
International Journal of Thermal Sciences
Journal Volume
50
Journal Issue
11
Pages
2084-2090
Date Issued
2011
Author(s)
Abstract
A new technique is developed to directly grow Cu nanowire (CuNW) on Si substrate with electro-chemical deposition to produce height-controlled hydrophilic nanowired surfaces for enhancing pool boiling performance. For broader heat transfer applications, CuNW and Si nanowires (SiNW) with various nanowire heights were fabricated and examined under pool boiling with water. The heat transfer performance of the samples with NW arrays is enhanced with increasing NW heights regardless of the NW materials. The surface with the tallest NW structure (35 μm-tall SiNW) yielded a heat flux of 134 W/cm 2 at 23 K wall superheat, about 300% higher than a plain Si surface at the same wall superheat. © 2011 Elsevier Masson SAS. All rights reserved.
SDGs
Type
journal article