Results 11 to 20 of about 244,763 (311)
Experiments of unstable vapor liquid two phase flow phenomena during flow boiling with HFE-7100 in two parallel rectangular multi-microchannels with aspect ratios of 0.2364 and 0.3182 were conducted under a wide range of test conditions: the mass flux ...
Y. Lv, G. Xia, Lixin Cheng, Dandan Ma
semanticscholar +1 more source
The paper presents a comprehensive review of fundamentals and engineering applications of CO2 flow boiling heat transfer, flow patterns and two-phase pressure drops in macro- and micro-channel evaporators. First, distinctions of macro- and micro-channels
Lixin Cheng, G. Xia, J. Thome
semanticscholar +1 more source
Materials and Interface Challenges in High-Vapor-Quality Two-Phase Flow Boiling Research
High-vapor-quality flow boiling on structured surfaces has the potential to enhance heat transfer performance and reduce temperature/pressure instability compared to conventional lower quality flow boiling on smooth surfaces.
D. Agonafer +2 more
semanticscholar +1 more source
Modelling of Boiling Flows for Nuclear Thermal Hydraulics Applications—A Brief Review
The boiling process is utterly fundamental to the design and safety of water-cooled fission reactors. Both boiling water reactors and pressurised water reactors use boiling under high-pressure subcooled liquid flow conditions to achieve high surface heat
Giovanni Giustini
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Boiling Heat Transfer during Flow in Vertical Mini-Channels with a Modified Heated Surface
The process with change of phase during flow in mini-channels plays a significant role in many industrial applications, such as microelectronics. Furthermore, methods for heat transfer intensification during flow in channels of small cross-section are ...
Magdalena Piasecka, Kinga Strąk
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Application of RQA and SOM for identification of two-phase flow patterns during boiling in horizontal minichannel [PDF]
In the paper, numerical methods of data analysis recurrence quantification analysis (RQA) and self-organizing map (SOM) have been used to analyse pressure drop oscillations during the flow boiling in minichannel.
Grzybowski Hubert +2 more
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Cryogenic liquid propellants are used in liquid rocket engines to obtain high specific impulse. The flow rates are controlled by turbopumps that deliver liquid propellant to the engine at high pressure levels.
Lorenzo Mazzei +8 more
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Comprehensive two-phase flow calculation method with in-channel refrigerant boiling [PDF]
In this paper, the authors deal with the processes occurring during boiling of two-phase flows in channels, which differ in many possible regimes, and their analytical description is possible only under strict restrictions within the given regime and ...
A. V. Zaitsev +4 more
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Flow boiling instabilities of nitrogen in horizontal small diameter tube
The flow boiling instability characteristics of nitrogen flow boiling in a horizontal small diameter tube were numerically studied, and a numerical model coupled with two phase flow boiling and system flow supplying was developed.
Zhang Qiaoyu, Liu Jianjun
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Boiling Flow Pattern Identification Using a Self-Organizing Map
In the paper, a self-organizing map combined with the recurrence quantification analysis was used to identify flow boiling patterns in a circular horizontal minichannel with an inner diameter of 1 mm. The dynamics of the pressure drop during density-wave
Iwona Zaborowska +2 more
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