論文

査読有り
2018年3月1日

Phase detection aided thermometry (PDaT) for two-phase flow

International Journal of Heat and Mass Transfer
  • Mao Takeyama
  • ,
  • Tomoaki Kunugi
  • ,
  • Takehiko Yokomine
  • ,
  • Zensaku Kawara

118
開始ページ
492
終了ページ
497
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.ijheatmasstransfer.2017.11.001
出版者・発行元
Elsevier Ltd

Since temperature and void (or phase) fraction are important parameters to characterize and grasp multiphase flow behaviors, various methods to measure these quantities have been developed and applied to. However, these multi-phase flow parameters have not been simultaneously measured at the same time and position until now because they need the individual sensors, such as an optical fiber void sensor, a conductance probe and a sheath thermocouple (TC), and so on. This paper describes the development of a new thermometry to detect the phase for two-phase flow and simultaneously measure the liquid/gas temperature with a miniature TC with high temporal-spatial resolutions
hereafter, this method calls a Phase Detection aided Thermometry (PDaT). The principle of PDaT is that a miniature TC with 10 kHz of the sampling rate is used not only as a thermometer with the high temporal-spatial resolution, but also as an electrical conductance probe for phase detection. In statistically, PDaT can acquire the void fraction, the average temperature and that phase at the same time and position. In addition, temperature of the interface between liquid and gas phases can be locally and instantaneously measured, besides the bubble cord length measurement as same as the ordinary void sensor in case of the bubbly flow. To demonstrate the applicability of PDaT, a proof of principle experiment was conducted with liquid water and a static air bubble, simultaneously visualized by a high speed camera.

リンク情報
DOI
https://doi.org/10.1016/j.ijheatmasstransfer.2017.11.001
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85033453902&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85033453902&origin=inward
ID情報
  • DOI : 10.1016/j.ijheatmasstransfer.2017.11.001
  • ISSN : 0017-9310
  • SCOPUS ID : 85033453902

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