Journal ArticleDOI
Prediction of the critical heat flux in water subcooled flow boiling using a new mechanistic approach
TLDR
The superheated layer vapour replenishment model as mentioned in this paper was proposed to predict the CHF in sub-cooled water flow boiling, where a thin elongated bubble, called a vapour blanket, is formed, rising along the near wall region as vertical distorted vapour cylinders.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 1999-04-01. It has received 47 citations till now. The article focuses on the topics: Boiling & Heat flux.read more
Citations
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Journal ArticleDOI
Prediction of critical heat flux for subcooled flow boiling
W. Liu,H. Nariai,F. Inasaka +2 more
TL;DR: In this paper, a theoretical critical heat flux (CHF) prediction model is developed for the subcooled flow boiling based on the liquid sublayer dryout mechanism. But the model is tested over a large data bank, which is characterized by covering almost the entire physics scope, showing a general good accuracy.
Journal ArticleDOI
Heat transfer in subcooled jet impingement boiling at high wall temperatures
TL;DR: In this paper, an analytical approach for heat transfer modelling of jet impingement boiling is presented, which is based on the assumption that due to bubble growth and collapse the maximum turbulence intensity is located at the wall/liquid interface and that eddy diffusivity decreases with increasing wall distance.
Patent
Partial boiling in mini- and micro-channels
Anna Lee Y. Tonkovich,Michael Jay Lamont,Terry Mazanec,Sean P. Fitzgerald,Paul W. Neagle,David J. Hesse,Laura J. Silva,G. Bradley Chadwell,Dongming Qiu,Ravi Arora,Bin Yang,Kai Jarosh +11 more
TL;DR: In this paper, the authors provide methods, apparatus and systems in which there is partial boiling of a liquid in a mini-channel or microchannel for a length of at least 15 cm.
Experimental Heat Transfer, pressure drop, and Flow Visualization of R-134a in Vertical Mini/Micro Tubes
TL;DR: For the application of minichannel heat exchangers, it is necessary to have accurate design tools for predicting heat transfer and pressure drop as mentioned in this paper. But until recently, this type of heat exchanger was no...
Journal ArticleDOI
Critical Heat Flux in Flow Boiling-Review of the Current Understanding and Experimental Approaches
TL;DR: A comprehensive review of current literature on subcooled flow boiling with a focus on the mechanistic modeling of the departure from nucleate boiling is presented in this paper, which covers parametric trends, other reviews on the topic, previous modeling approaches, applicable measurement techniques for two-phase flow, and an extensive literature review on mechanistic models for the prediction of critical heat flux.
References
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Book
Convective boiling and condensation
John G. Collier,John R. Thome +1 more
TL;DR: In this paper, the basic models of two-phase flow are discussed and empirical treatments of two phase flow are provided. But the authors focus on convective boiling and condensing.
Journal ArticleDOI
Forced convection subcooled boiling—prediction of vapor volumetric fraction
TL;DR: In this article, a model was developed to predict the vapor volumetric fraction during forced convection subcooled boiling, which was applied to a variety of available test data, and the agreement was satisfactory for a multitude of flow, heat flux, and fluid property conditions.
Journal ArticleDOI
A mechanistic critical heat flux model for subcooled flow boiling based on local bulk flow conditions
C.H. Lee,I.A. Mudawwar +1 more
TL;DR: In this article, a new mechanistic critical heat flux (CHF) model for vertical subcooled flow at high pressure and high mass velocity was developed based on the dryout of a thin liquid layer beneath an intermittent vapor blanket due to a Helmholtz instability at the sublayer-vapor interface.
Book
Two Phase Flow and Heat Transfer
TL;DR: In this article, the authors present an introductory and advanced level information for graduate engineers and scientists on liquid-gas and liquid-vapor flow and heat transfer, including phase distribution, methods for calculating the pressure gradient, mechanisms for boiling and condensation and their effects on heat transfer rates, boiling crisis and flow instabilities during boiling, and loss-of-coolant accidents in water-cooled reactors.
Related Papers (5)
A mechanistic critical heat flux model for subcooled flow boiling based on local bulk flow conditions
C.H. Lee,I.A. Mudawwar +1 more