Journal ArticleDOI
On the Prediction of Pressure Fluctuations and Pressure Drop Caused by Confined Bubble Growth During Flow Boiling in a Rectangular Mini/Micro-Channel
Shashwat Jain,Sateesh Gedupudi +1 more
Reads0
Chats0
TLDR
In this paper, heat sinks based on flow boiling in microchannels have the potential to mitigate temperature rise in high heat flux devices such as electronic equipment. But the major challenge is the instabil...Abstract:
Heat-sinks based on flow boiling in microchannels have the potential to mitigate temperature rise in high heat flux devices such as electronic equipment. One of the major challenges is the instabil...read more
Citations
More filters
Liquid-liquid slug flow hydrodynamics and pressure drop in micro channels
TL;DR: In this article, the hydrodynamics and the pressure drop of liquid-liquid slug flow in round microcapillaries are presented, and two models are presented: the stagnant film model and the moving film model.
Journal ArticleDOI
Dynamic instabilities of flow boiling in micro-channels: A review
TL;DR: In this article , a review of the literature addressing gas-liquid two-phase flow boiling dynamic instabilities in micro-channels in theoretical and experimental aspects is presented, combined with bubble dynamics, the mechanism and criteria of dynamic instability are revealed.
Journal ArticleDOI
Modeling of pressure drop and heat transfer for flow boiling in a mini/micro-channel of rectangular cross-section
TL;DR: In this paper, a one-dimensional model is proposed to estimate the pressure drop and heat transfer coefficient for flow boiling in a rectangular microchannel, taking into account the pressure fluctuations caused due to the confined bubble growth and the effect of pressure fluctuations on the heat transfer characteristics.
Journal ArticleDOI
Fourier series based 1-D numerical modelling of the dynamics of inclined closed loop buoyancy driven heat exchangers with conjugate effect
Akhil Dass,Sateesh Gedupudi +1 more
TL;DR: In this paper, a 1D numerical model of the dynamics of inclined closed loop buoyancy driven heat exchangers with inclusion of the wall conduction effect at the heat exchanger is presented.
Journal ArticleDOI
Growth of elongated vapor bubbles during flow boiling heat transfer in wavy microchannels
TL;DR: In this paper , Wang et al. studied the effect of the wavy structure of the microchannel on the growth of the vapor bubbles in the flow boiling process and quantified the effects of key dimensionless numbers on bubble growth rate and wall heat transfer, including the Weber number, the Capillary number, and Jakob number.
References
More filters
Journal ArticleDOI
Local pressure measurements and heat transfer coefficients of flow boiling in a rectangular microchannel
TL;DR: In this article, the authors investigate local pressure distribution and local heat transfer coefficients during flow boiling of water in a microchannel and show a non linear line connecting each local pressure, especially at higher heat fluxes or pressure drops.
Journal ArticleDOI
Elongated bubble behavior during flow boiling in a microchannel
TL;DR: In this article, a two-zone model was used to study the behavior of elongated bubbles and their effect on flow boiling in a 100μm-diameter microchannel, while flow visualization of the elongated bubble behavior was obtained with a high-speed camera.
Journal ArticleDOI
Simplified Model for Prediction of Bubble Growth at Nucleation Site in Microchannels
Journal ArticleDOI
An Experimental Investigation on the Influence of Copper Ageing on Flow Boiling in a Copper Microchannel
TL;DR: In this paper, the influence of copper ageing on flow boiling heat transfer and pressure drop in copper microchannels of two different hydraulic diameters was investigated, and the experimental results showed that the influence was negligible.
Journal ArticleDOI
Viscous dissipation in micro-channels
Donghyouck Han,K. S. Lee +1 more
TL;DR: In this article, the authors investigated viscous dissipation effects in circular micro-tubes and rectangular micro-channels theoretically in a fully developed laminar flow region and derived simple theoretical equations for the evaluation of the dissipation effect.