Open Access System for Information Sharing

Login Library

 

PROCEEDINGS PAPER
Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Effects of nano-fluid and surfaces with nano structure on the increase of CHF

Title
Effects of nano-fluid and surfaces with nano structure on the increase of CHF
Authors
Kim, SeontaeKim, Hyung DaeKim, HyungmoAhn, Ho SeonJo, HangjinKim, JoonwonKim, Moo Hwan김무환
Date Issued
May-2010
Publisher
ELSEVIER SCIENCE INC
Abstract
Critical heat flux (CHF) has necessitated inconvenient compromises between economy and safety in most industries related to thermal systems. Recent development of nanotechnology has enabled synthesis of nano-sized particles and development of new heat transfer fluids with suspended nano-sized particles, i.e., nanofluids. When nanofluids were used in boiling heat transfer cooling, anomalous increase of CHF was reported. Subsequently, nanoparticle deposition on the boiling surface was revealed to contribute to CHF enhancement. Research on surface characteristics determined that three major characteristics affect CHF: wettability, liquid spreadability and multi-scale geometry. We fabricated artificially modified surfaces with arrays of octagonal micro-posts, or ZnO nanorods, or both, and measured their performance in enhancing CHF. The presence of three major characteristics enhanced CHF most. (C) 2009 Elsevier Inc. All rights reserved.
Keywords
Critical heat flux (CHF); Nano-fluid; Micro-posts; Nano structure; Pool boiling; Wettability; Liquid spreadability; BOILING HEAT-TRANSFER; POOL; NANOPARTICLES; ENHANCEMENT; WATER
URI
http://oasis.postech.ac.kr/handle/2014.oak/26324
DOI
10.1016/J.EXPTHERMFLUSCI.2009.05.006
ISSN
0894-1777
Article Type
PROCEEDINGS PAPER
Files in This Item:
There are no files associated with this item.

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Altmetric

Views & Downloads

Browse