Journal ArticleDOI
Heat transfer model for evaporation in microchannels. Part I: presentation of the model
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TLDR
In this article, a three-zone flow boiling model was proposed to describe evaporation of elongated bubbles in microchannels, and a time-averaged local heat transfer coefficient was obtained.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 2004-07-01. It has received 560 citations till now. The article focuses on the topics: Convective heat transfer & Heat transfer coefficient.read more
Citations
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Experimental study on flow boiling characteristics in a high aspect ratio vertical rectangular mini-channel under low heat and mass flux
TL;DR: In this article, the authors investigated the flow patterns and flow boiling characteristics of R600a, R227ea and R245fa in a visualized vertical rectangular mini-channel, with a moderate-high aspect ratio.
Journal ArticleDOI
Effect of nano-textured heater surfaces on evaporation at a single meniscus
Sebastian Fischer,Rakesh P. Sahu,Sumit Sinha-Ray,Alexander L. Yarin,Alexander L. Yarin,Tatiana Gambaryan-Roisman,Peter Stephan +6 more
TL;DR: In this article, the authors investigated evaporation of liquid in the vicinity of an apparent contact line of a single meniscus, where the liquid-vapor interface meets the nano-textured substrate.
Journal ArticleDOI
The effect of initial flow velocity on the liquid film thickness in micro tube accelerated slug flow
TL;DR: In this article, the effect of initial flow velocity on the liquid film thickness in accelerated flows under adiabatic condition is experimentally investigated, and an empirical correlation is proposed for the initial liquid-film thickness of accelerated flows that accounts for the acceleration.
Journal ArticleDOI
Thermal Response of Multi-Microchannel Evaporators During Flow Boiling of Refrigerants Under Transient Heat Loads With Flow Visualization
TL;DR: In this article, an extensive experimental study was conducted to investigate the base temperature response of multi-microchannel evaporators under transient heat loads, including cold startups and periodic step variations in heat flux using two different test sections and two coolants (R236fa and R245fa).
Journal ArticleDOI
Formation Mechanism and Characteristics of a Liquid Microlayer in Microchannel Boiling System
TL;DR: In this article, the authors used the laser extinction method to measure the thickness of the liquid film formed by growing flattened bubbles in a microchannel for gap sizes of 0.5 mm, 0.3 mm, and 0.15 mm.
References
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Journal ArticleDOI
Gas–liquid two-phase flow in microchannels Part I: two-phase flow patterns
TL;DR: In this paper, a systematic experimental investigation of two-phase flow patterns in microchannels was the objective of this study, using air and water, experiments were conducted in circular micro channels with 1.1 and 1.45mm inner diameters, and in semi-triangular (triangular with one corner smoothed) cross-sections with hydraulic diameters 1.09 and 149mm.
Journal ArticleDOI
A general expression for the correlation of rates of transfer and other phenomena
Stuart W. Churchill,R. Usagi +1 more
TL;DR: The expression Y = (1 + Zn)1/n where Y and Z are expressed in terms of the solutions for asymptotically large and small values of the independent variable is shown to be remarkably successful in correlating rates of transfer for processes which vary uniformly between these limiting cases as discussed by the authors.
Journal ArticleDOI
The Growth of Vapor Bubbles in Superheated Liquids
M. S. Plesset,S. A. Zwick +1 more
TL;DR: In this article, a solution for the radius of the vapor bubble as a function of time is obtained which is valid for sufficiently large radius, since the radius at which it becomes valid is near the lower limit of experimental observation.
Journal ArticleDOI
Evaporation heat transfer and pressure drop of refrigerant R-134a in a small pipe
Yi-Yie Yan,T.F. Lin +1 more
TL;DR: In this paper, an experiment was carried out to investigate the characteristics of the evaporation heat transfer and pressure drop for refrigerant R-134a flowing in a horizontal small circular pipe having an inside diameter of 2.0 mm.
Journal ArticleDOI
Heat Transfer Model for Evaporation of Elongated Bubble Flows in Microchannels
Anthony M. Jacobi,John R. Thome +1 more
TL;DR: In this paper, the authors present a Web of Science Record created on 2005-07-06, modified on 2017-05-10 for a paper entitled "Reference LTCM-ARTICLE-2005-032:
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