Pool boiling CHF enhancement on a Zircaloy-4 surface with micro/nano scale modification

Ho Seon Ahn, Chan Lee, Hyungdae Kim, Hang Jin Jo, Soon Ho Kang, Joonwon Kim, Moo Hwan Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The need to operate thermal systems, including those in nuclear power plants, below the critical heat flux (CHF) requires inconvenient compromises between economy and safety. This has led to much research aimed at enhancing the CHF. CHF enhancement was recently noticed in nanofluids where the heating surface was fouled by nanoparticles. We attempted to imitate the micro/nano multi-scale structure of nanoparticle fouling by surface modification. In this study, surface treatment was used to change the surface wettability of a Zircaloy-4 heater. A pool boiling apparatus was developed based on the results of the surface treatment, and an experimental study was performed to investigate the increase in CHF.

Original languageEnglish
Title of host publicationProceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
Pages525-531
Number of pages7
DOIs
Publication statusPublished - 2010
EventASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009 - Shanghai, China
Duration: 18 Dec 200921 Dec 2009

Publication series

NameProceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
Volume1

Conference

ConferenceASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
Country/TerritoryChina
CityShanghai
Period18/12/0921/12/09

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