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Title: Development of a mechanistic model for sliding bubbles growth prediction in subcooled boiling flow

Abstract

In this paper, a new mechanistic model for predicting the growth of sliding bubbles in subcooled boiling flow has been developed. The basis of this model is the assumption that the fundamental heat transfer mechanisms acting on a stagnant bubble growing at a nucleation site can also be applied to the growth of sliding bubbles. The physical assumptions of the existing bubble growth models were modified to reflect the intrinsic physics associated with the sliding bubble growth. The heat transfer mechanisms considered are microlayer evaporation, evaporation of superheated liquid, and condensation. The present model has been successfully validated against a broad set of subcooled flow boiling data, generated by three separate research groups using different working fluids and different heater surfaces. The model successfully reproduced the sliding bubble growth dependencies on mass flux, wall superheat, and liquid subcooling level as observed in the experiments. Finally, on the other hand, in a few cases where the bubble growth inertia was substantially involved in the sliding bubble growth, the predictive ability was limited.

Authors:
 [1];  [2];  [2]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  2. Texas A & M Univ., College Station, TX (United States). Dept. of Nuclear Engineering
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1469326
Alternate Identifier(s):
OSTI ID: 1564525
Report Number(s):
INL/JOU-17-43749-Rev000
Journal ID: ISSN 1359-4311
Grant/Contract Number:  
AC07-05ID14517; AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Applied Thermal Engineering
Additional Journal Information:
Journal Volume: 138; Journal ID: ISSN 1359-4311
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; Sliding bubble growth; bubble growth model; subcooled boiling flow

Citation Formats

Yoo, Junsoo, Estrada-Perez, Carlos E., and Hassan, Yassin A. Development of a mechanistic model for sliding bubbles growth prediction in subcooled boiling flow. United States: N. p., 2018. Web. doi:10.1016/j.applthermaleng.2018.04.096.
Yoo, Junsoo, Estrada-Perez, Carlos E., & Hassan, Yassin A. Development of a mechanistic model for sliding bubbles growth prediction in subcooled boiling flow. United States. doi:10.1016/j.applthermaleng.2018.04.096.
Yoo, Junsoo, Estrada-Perez, Carlos E., and Hassan, Yassin A. Sat . "Development of a mechanistic model for sliding bubbles growth prediction in subcooled boiling flow". United States. doi:10.1016/j.applthermaleng.2018.04.096. https://www.osti.gov/servlets/purl/1469326.
@article{osti_1469326,
title = {Development of a mechanistic model for sliding bubbles growth prediction in subcooled boiling flow},
author = {Yoo, Junsoo and Estrada-Perez, Carlos E. and Hassan, Yassin A.},
abstractNote = {In this paper, a new mechanistic model for predicting the growth of sliding bubbles in subcooled boiling flow has been developed. The basis of this model is the assumption that the fundamental heat transfer mechanisms acting on a stagnant bubble growing at a nucleation site can also be applied to the growth of sliding bubbles. The physical assumptions of the existing bubble growth models were modified to reflect the intrinsic physics associated with the sliding bubble growth. The heat transfer mechanisms considered are microlayer evaporation, evaporation of superheated liquid, and condensation. The present model has been successfully validated against a broad set of subcooled flow boiling data, generated by three separate research groups using different working fluids and different heater surfaces. The model successfully reproduced the sliding bubble growth dependencies on mass flux, wall superheat, and liquid subcooling level as observed in the experiments. Finally, on the other hand, in a few cases where the bubble growth inertia was substantially involved in the sliding bubble growth, the predictive ability was limited.},
doi = {10.1016/j.applthermaleng.2018.04.096},
journal = {Applied Thermal Engineering},
number = ,
volume = 138,
place = {United States},
year = {2018},
month = {4}
}