Boiling of Various Liquids on Microstructurized Surfaces

Попов, И. А.; Щелчков, А. В.

doi:10.1007/s10891-014-1146-6

Cited by 9 publications

(6 citation statements)

References 4 publications

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“…Work [106] is devoted to an experimental study of heat transfer on micro-structured surfaces of various geometries during pool boiling of water. In [107][108][109], the authors report heat transfer intensification of up to ninefold on some surfaces prepared by the deforming cutting method as compared with a smooth surface. The few currently available studies of heat transfer for the case of boiling of falling liquid films on micro-structured surfaces show the efficiency of using surfaces designed for large volumes and film flows of liquid [104,110].…”

Section: Heat Transfer Enhancement and Increase In Critical Heat Flux At Film Flowsmentioning

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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Section: Heat Transfer Enhancement and Increase In Critical Heat Flux At Film Flowsmentioning

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 generalization of results of the boiling of the distilled water [1][2][3][4] for the microfinned surfaces ( Fig. 1 and Table 1) was made according to the model…”

Section: ÷210mentioning

confidence: 99%

“…This quantity was used as scale for the velocity of the fluid particles due to the vaporization processes. The generalization of the experimental results by the dimensionless factors like h/F/F0 has not been successful [2][3][4]. Therefore, the generalization was made by using the criterion Kг=f(h/l0,/l0,/l0,(s-u)/l0,), where as a linear scale was used the Laplace constant scale allows to define the type of type of the structure: cell or the capillary [5].…”

Section: ÷210mentioning

confidence: 99%

“…3). The experimental parameters were varied : Kq=170÷1,510 4 , the dimensionless geometrical parameters for the samples №5-9,№11,№12,№14,№16,№22,№30,№32-33,№36 (Table 1) Table 1. Line Micheev equation.…”

Section: ÷210mentioning

confidence: 99%

“…The maximal values of the heat transfer intensification were observed for the three-dimensional surface elements. The results of studying the heat transfer enhancement for these surfaces for the boiling of the distilled water, 98%ethanol, and 60% water solution of the glycerin are presented in [3,4]. …”

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Recommendations for the heat transfer assessment for natural convection boiling of microfinned surfaces

Gortyshov

Попов

Щелчков

et al. 2017

J. Phys.: Conf. Ser.

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Abstract. The paper presents the generalized correlations for the heat transfer coefficients for natural convection boiling of microfinned surfaces based on the experimental measurements. IntroductionThe microfinned surface elements on the flat horizontal plate produced by the deforming cutting method is one of the most effective ways of heat transfer intensification for natural convection boiling [1,2]. The deforming cutting method is a simple and no waste technology.It was revealed that for the two-and the three-dimensional microstructured surfaces for the element height of 90-750 µm, element thickness of 25-320 µm, and longitudinal gap width of 40-500 µm the heat transfer coefficients is growing up to a factor of 9, and the critical heat flux magnitudes are rising up to a factorof 4.1. The maximal values of the heat transfer intensification were observed for the three-dimensional surface elements. The results of studying the heat transfer enhancement for these surfaces for the boiling of the distilled water, 98%ethanol, and 60% water solution of the glycerin are presented in [3,4].

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Boiling of a Liquid on Microstructured Surfaces Under Free-Convection Conditions

Щелчков

Попов

Зубков

2016

J Eng Phys Thermophy

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Boiling of Various Liquids on Microstructurized Surfaces

Cited by 9 publications

References 4 publications

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

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

Recommendations for the heat transfer assessment for natural convection boiling of microfinned surfaces

Boiling of a Liquid on Microstructured Surfaces Under Free-Convection Conditions

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