Journal ArticleDOI
An Experimental Investigation on the Influence of Copper Ageing on Flow Boiling in a Copper Microchannel
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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.Abstract:
The study reports the experimental investigation on the influence of copper ageing on flow boiling heat transfer and pressure drop in copper microchannels of two different hydraulic diamete...read more
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Experimental investigation of flow boiling in rectangular mini/micro-channels of different aspect ratios without and with vapour venting membrane
TL;DR: In this paper, the influence of vapour venting on the flow boiling pressure drop and heat transfer of water in copper mini/micro-channels of three different aspect ratios was investigated.
Journal ArticleDOI
Effect of boiling-induced aging on pool boiling heat transfer performance of untreated and laser-textured copper surfaces
TL;DR: In this article, the aging behavior of an untreated and a laser-textured copper boiling surface during an eight-day testing period under pool boiling conditions using saturated water at atmospheric pressure was investigated.
Journal ArticleDOI
Significance of surface modification on nucleate pool boiling heat transfer characteristics of refrigerant R-141b
TL;DR: In this article, the significance of surface modification on the heat transport phenomena under nucleate pool boiling configuration of saturated R-141b at ambient condition over SiO2 thin film (TF) nanocoated surfaces was investigated.
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
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
TL;DR: 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...
References
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Journal ArticleDOI
A comparative study of the morphology and wetting characteristics of micro/nanostructured Cu surfaces for phase change heat transfer applications
Youngsuk Nam,Y. Sungtaek Ju +1 more
TL;DR: In this article, a comparative study of oxidation methods to create Cu surfaces with controlled wettability is reported, where micro/nanostructures of Cu oxides are formed on Cu substrates using different chemical and thermal oxidation methods.
Journal ArticleDOI
On further enhancement of single-phase and flow boiling heat transfer in micro/minichannels
Zan Wu,Bengt Sundén +1 more
TL;DR: In this paper, the authors presented the classification of micro/minichannels for single-phase flow and flow boiling and gave a general statement of heat transfer enhancement, and provided a state-of-the-art overview of the most recent enhancement techniques.
Proceedings ArticleDOI
Optimization of parallel plate heatsinks for forced convection
TL;DR: In this article, the optimum dimensions of fin thickness and pitch are calculated for a variety of realistic operating conditions, and they are somewhat smaller then those achievable by extruded heatsinks.
Journal ArticleDOI
Similarities and differences between flow boiling in microchannels and pool boiling
TL;DR: In this article, the authors explored the underlying heat transfer mechanisms and illustrates the similarities and differences between the two processes and showed that the formation of elongated bubbles and their passage over the microchannel walls have similarities to the bubble ebullition cycle in pool boiling.
Predicting Heat Transfer During Flow Boiling in Minichannels and Microchannels
TL;DR: In this paper, a flow boiling correlation for large-diameter tubes is modified for flow boiling in minichannels by using the laminar single-phase correlation for the heat transfer coefficient for all liquid flow.