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Title: Time-resolved measurements of liquid–vapor thermal interactions throughout the full life-cycle of sliding bubbles at subcooled flow boiling conditions

Abstract

The local thermal response of the liquid phase to the presence of sliding bubbles was measured with an infrared camera in subcooled flow-boiling conditions. These measurements were complemented with two high-speed cameras to capture the corresponding bubbles’ dynamics. The liquid–vapor interactions were captured in detail over the full life-cycle of sliding bubbles. Four distinctive phases for the bubble life-cycle were identified: A) Spherical bubble growth with strong attachment, B) Deformed bubble growth with weak attachment, C) Detachment with hot liquid quenching, and D) Cold liquid quenching. Here, to the best of the authors’ knowledge, it is the first time that the “detachment with hot liquid quenching phase has been observed. This phase is characterized by a “hot” thermal footprint during the bubble detachment process. It is believed that this footprint is constituted partially from hot liquid released during the condensation of the recently detached bubble, and from released hot fluid previously collected by the bubble during sliding. In addition, this work reveals that using traditional high-speed visualization techniques (side-view camera only) can lead to an underestimation of approximately 40% of the actual bubble–wall contact diameter (dc) which was inferred from the infrared camera measurements.

Authors:
 [1];  [1];  [1];  [2]
  1. Texas A&M Univ., College Station, TX (United States). Nuclear Engineering Dept.
  2. Idaho National Lab. (INL), Idaho Falls, ID (United States)
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1474077
Alternate Identifier(s):
OSTI ID: 1549247
Report Number(s):
[INL/JOU-17-42118-Rev000]
[Journal ID: ISSN 0301-9322]
Grant/Contract Number:  
[AC07-05ID14517; AC05-00OR22725]
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Multiphase Flow
Additional Journal Information:
[ Journal Volume: 99; Journal Issue: C]; Journal ID: ISSN 0301-9322
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; Subcooled Flow Boiling, Sliding Bubbles, Thermal Footprint, Liquid-Vapor Thermal Interaction, Infrared Measurements, Bubble Dynamics

Citation Formats

Estrada-Pérez, Carlos E., Hassan, Yassin A., Alkhudhiri, Bandar, and Yoo, Junsoo. Time-resolved measurements of liquid–vapor thermal interactions throughout the full life-cycle of sliding bubbles at subcooled flow boiling conditions. United States: N. p., 2017. Web. doi:10.1016/j.ijmultiphaseflow.2017.10.002.
Estrada-Pérez, Carlos E., Hassan, Yassin A., Alkhudhiri, Bandar, & Yoo, Junsoo. Time-resolved measurements of liquid–vapor thermal interactions throughout the full life-cycle of sliding bubbles at subcooled flow boiling conditions. United States. doi:10.1016/j.ijmultiphaseflow.2017.10.002.
Estrada-Pérez, Carlos E., Hassan, Yassin A., Alkhudhiri, Bandar, and Yoo, Junsoo. Tue . "Time-resolved measurements of liquid–vapor thermal interactions throughout the full life-cycle of sliding bubbles at subcooled flow boiling conditions". United States. doi:10.1016/j.ijmultiphaseflow.2017.10.002. https://www.osti.gov/servlets/purl/1474077.
@article{osti_1474077,
title = {Time-resolved measurements of liquid–vapor thermal interactions throughout the full life-cycle of sliding bubbles at subcooled flow boiling conditions},
author = {Estrada-Pérez, Carlos E. and Hassan, Yassin A. and Alkhudhiri, Bandar and Yoo, Junsoo},
abstractNote = {The local thermal response of the liquid phase to the presence of sliding bubbles was measured with an infrared camera in subcooled flow-boiling conditions. These measurements were complemented with two high-speed cameras to capture the corresponding bubbles’ dynamics. The liquid–vapor interactions were captured in detail over the full life-cycle of sliding bubbles. Four distinctive phases for the bubble life-cycle were identified: A) Spherical bubble growth with strong attachment, B) Deformed bubble growth with weak attachment, C) Detachment with hot liquid quenching, and D) Cold liquid quenching. Here, to the best of the authors’ knowledge, it is the first time that the “detachment with hot liquid quenching phase has been observed. This phase is characterized by a “hot” thermal footprint during the bubble detachment process. It is believed that this footprint is constituted partially from hot liquid released during the condensation of the recently detached bubble, and from released hot fluid previously collected by the bubble during sliding. In addition, this work reveals that using traditional high-speed visualization techniques (side-view camera only) can lead to an underestimation of approximately 40% of the actual bubble–wall contact diameter (dc) which was inferred from the infrared camera measurements.},
doi = {10.1016/j.ijmultiphaseflow.2017.10.002},
journal = {International Journal of Multiphase Flow},
number = [C],
volume = [99],
place = {United States},
year = {2017},
month = {10}
}

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