Void fraction measurement in subcooled-boiling flow using high-frame-rate neutron radiography

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)241-254
Journal / PublicationNuclear Technology
Volume136
Issue number2
Publication statusPublished - 2001
Externally publishedYes

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-0034770937&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(49225ee7-a4f7-4118-b9a7-27143520339f).html

Abstract

A high-frame-rate neutron radiography (NR) technique was applied to measure the void fraction distribution in forced-convective subcooled-boiling flow. The focus was experimental technique and error estimation of the high-frame-rate NR. The results of void fraction measurement in the boiling flow were described. Measurement errors on instantaneous and time-averaged void fractions were evaluated experimentally and analytically. Measurement errors were within 18 and 2% for instantaneous void fraction (measurement time is 0.89 ms), and time-averaged void fraction, respectively. The void fraction distribution of subcooled boiling was measured using atmospheric-pressure water in rectangular channels with channel width 30 mm, heated length 100 mm, channel gap 3 and 5 mm, inlet water subcooling from 10 to 30 K, and mass velocity ranging from 240 to 2000 kg/(m2·s). One side of the channel was heated homogeneously. Instantaneous void fraction and time-averaged void fraction distribution were measured parametrically. The effects of flow parameters on void fraction were investigated.

Research Area(s)

  • Measurement, Neutron radiography, Void fraction

Bibliographic Note

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Publication fingerprints text

100
Frame Rate Engineering
100
Neutron Radiography Engineering
100
Porosity Engineering
100
Measurement Engineering
100
Boiling Liquid Engineering
100
Void Fraction Measu... Keyphrases
100
Void Fraction Keyphrases
100
High Frame Rate Keyphrases
100
Subcooled Boiling F... Keyphrases
100
void fraction INIS
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Citation Format(s)

[ RIS ] [ BibTeX ]
Void fraction measurement in subcooled-boiling flow using high-frame-rate neutron radiography. / Kureta, M.; Akimoto, H.; Hibiki, T. et al.
In: Nuclear Technology, Vol. 136, No. 2, 2001, p. 241-254.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review