A Review of Modern Methods for Enhancing Nucleate Boiling Heat Transfer

Дедов, А. В.

doi:10.1134/s0040601519120012

Cited by 46 publications

(7 citation statements)

References 133 publications

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“…On the other hand, the bubble ebullition occurred at many sites on the microgroove wicks, and the collision reaction between bubbles aggravated this reaction. This is because there are a large number of nucleation sites on the surface of microgrooves obtained by laser milling, and thus, bubbles can nucleate and grow at multiple sites, and the bubble ebullition period is short. − However, the plain copper lacks effective nucleation sites, bubbles are detected only at the corner, and the ebullition period is long …”

Section: Resultsmentioning

confidence: 99%

Capillary-Driven Boiling Heat Transfer on Superwetting Microgrooves

Yang

Tian

et al. 2022

ACS Omega

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Boiling can transfer a vast amount of heat and thereby is widely used for cooling advanced systems with high power density. However, the capillary force of most existing wicks is insufficient to surpass the liquid replenishing resistance for high-efficient boiling. Herein, we report a new microgroove wick on high-conductive copper substrates that was constructed via ultraviolet nanosecond pulsed laser milling. The phase explosion, combined with melting and resolidification effects of laser milling induces dense microcavities with sizes around several micrometers on the microgroove surface. The hierarchical microstructures significantly improve the wettability of the microgroove wicks to obtain strong capillary and meanwhile provide abundant effective nucleation sites. The boiling heat transfer in a visualized flat heat pipe shows that the new wicks enable sustainable liquid replenishing even under antigravity conditions, thus resulting in maximum 33-fold improvement of equivalent thermal conductivity when compared with the copper base. This research provides both scientific and technical bases for the design and manufacture of high-performance phase change cooling devices.

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Section: Resultsmentioning

confidence: 99%

Capillary-Driven Boiling Heat Transfer on Superwetting Microgrooves

Yang

Tian

et al. 2022

ACS Omega

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“…The advantages of the practical application of the surface treated with plasma [81,103,104,107], in comparison with surface modification by other methods (see reviews [88][89][90][91][92][93][94][108][109][110]), are high rates of intensification of heat transfer and CHF achieved (up to four times) in comparison with the unmodified surface. Surface treatment by high-temperature plasma makes it possible to form a surface structure that is resistant to degradation, especially using refractory metals in special heat exchange devices.…”

Section: Discussion and Advantages Of Practical Applicationsmentioning

confidence: 99%

“…Surface modification methods and materials used are systematized in [89]. They are as follows: The main conclusions from numerous works and reviews [88][89][90][91][92][93][94] for the implementation of the conditions for surface modification, where the greatest intensification of heat transfer and CHF have been achieved, are the following:…”

Section: Methods For Enchantment Boiling Heat Transfermentioning

confidence: 99%

Heat Transfer on Micro and Nanostructured Rough Surfaces Synthesized by Plasma

Дедов

Budaev

2022

Symmetry

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The review summarizes recent experimental results of studying heat transfer on rough surfaces synthesized by plasma. The plasma-surface interaction leads to the stochastic clustering of the surface roughness with a high specific area breaking the symmetry of the virgin surface of the initial crystalline materials. Such a surface is qualitatively different from the ordinary Brownian surface. The micro- and nanostructured surface consist of pores, craters, and nanofibers of size from tens of nanometers to tens of microns, which can provide new heat transfer properties related to a violation of the symmetry of the initial materials. In recent years, new results have been obtained in the study of heat transfer during phase change on plasma-modified surfaces in relation to energy, chemical, and cryogenic technologies. The objective of the review is to describe the specific structure of refractory metals after high-temperature plasma irradiation and the potential application of plasma processing of materials in order to create heat exchange surfaces that provide a significant intensification of two-phase heat transfer. Refractory metals with such a highly porous rough surface can be used as plasma-facing components for operation under extreme heat and plasma loads in thermonuclear and nuclear reactors, as catalysts for hydrogen production, as well as in biotechnology and biomedical applications.

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“…A detailed review of the above methods, as well as findings on the influence of the resulting modified surfaces and porous coatings on the heat transfer rates and CHF during boiling, is presented in a recently published review by the authors [26]. In recent years, voluminous reviews of other researchers' works in this direction have also been published [27][28][29][30][31][32][33][34][35], which give a fairly complete picture of various methods for modifying a heat-release surface.…”

Section: Heat Transfer Enhancement and Critical Heat Fluxmentioning

confidence: 99%

Development of Methods for Heat Transfer Enhancement During Nitrogen Boiling to Ensure Stabilization of HTS Devices

Павленко

Кузнецов

2021

J. Engin. Thermophys.

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The paper presents a brief analysis of current achievements and key issues in the field of heat transfer and critical heat flux enhancement during boiling of cryogenic liquids and freons under various heat release laws via micro-structuring of the heat-generating surface. A review of new experimental data on the efficiency of heat transfer and critical heat flux enhancement during pool boiling via new micro-structured capillary-porous coatings created by plasma sputtering and selective laser melting/sintering (3D printing) is presented. The results of analysis of the efficiency of heat transfer and critical heat flux during boiling on heat-generating surfaces with micro-textures of different shapes and micro-profiling created by micro-deforming cutting are presented. New results obtained during nitrogen boiling under various hydrodynamical conditions on the mechanisms of sharp increase in the rate of non-stationary cooling of plates with new structured capillary-porous or low-heat-conductivity coatings with certain parameters are discussed. New results on the degree of heat transfer enhancement during boiling of liquids on micro-structured surfaces modified by the method of micro-arc oxidation are presented.

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A Review of Modern Methods for Enhancing Nucleate Boiling Heat Transfer

Cited by 46 publications

References 133 publications

Capillary-Driven Boiling Heat Transfer on Superwetting Microgrooves

Capillary-Driven Boiling Heat Transfer on Superwetting Microgrooves

Heat Transfer on Micro and Nanostructured Rough Surfaces Synthesized by Plasma

Development of Methods for Heat Transfer Enhancement During Nitrogen Boiling to Ensure Stabilization of HTS Devices

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