BROWSE

Related Researcher

Author's Photo

Bang, In Cheol
Nuclear Thermal-Hydraulics & Reactor Safety Lab
Research Interests
  • Nuclear Thermal-Hydraulics
  • Nuclear Safety
  • Nuclear System Design & Analysis
  • Nanofluids
  • Critical Heat Flux

ITEM VIEW & DOWNLOAD

Acoustic analysis on the dynamic motion of vapor-liquid interface for the identification of boiling regime and critical heat flux

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Acoustic analysis on the dynamic motion of vapor-liquid interface for the identification of boiling regime and critical heat flux
Author
Seo, Seok BinBang, In Cheol
Issue Date
2019-03
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.131, pp.1138 - 1146
Abstract
In this study, the feasibility of identifying boiling regimes through acoustic emission (AE) measurement is tested, and the relationship between AE features and boiling dynamics is investigated. Conventional pool quenching experiments are performed using a spherical test section to investigate the entire boiling regime from film boiling to nucleate boiling. The AE measurements and accompanying optical visualization enable analyses of the AE features of each boiling regime, which are characterized by statistical and spectral parameters. The recorded boiling dynamics provide the history of vapor-liquid interface motion to verify the characteristics of AE features. The present work analyzes different acoustic features generated from different boiling regimes including nucleate boiling, transition boiling, boiling crisis, and film boiling. Each boiling regime is characterized by its measured AE signal with respect to various parameters. At the same time, optical visualization of the boiling process accompanies the AE measurements. A comparison of the wave information in vapor-liquid interface motion with AE features proves the feasibility of AE measurement for clear identification of boiling regimes and offers an insight into understanding boiling dynamics with respect to vapor behaviors.
URI
https://scholarworks.unist.ac.kr/handle/201301/25532
URL
https://www.sciencedirect.com/science/article/pii/S0017931018346994?via%3Dihub
DOI
10.1016/j.ijheatmasstransfer.2018.11.136
ISSN
0017-9310
Appears in Collections:
NUE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

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

MENU