Two-phase flow patterns in adiabatic and diabatic corrugated plate gaps

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Polzin, A.-E.; Kabelac, S.; de Vries, B.: Two-phase flow patterns in adiabatic and diabatic corrugated plate gaps. In: Journal of Physics : Conference Series 745 (2016), Nr. 3, 32111. DOI: https://doi.org/10.1088/1742-6596/745/3/032111

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Sum total of downloads: 24




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Abstract: 
Correlations for two-phase heat transfer and pressure drop can be improved considerably, when they are adapted to specific flow patterns. As plate heat exchangers find increasing application as evaporators and condensers, there is a need for flow pattern maps for corrugated plate gaps. This contribution presents experimental results on flow pattern investigations for such a plate heat exchanger background, using an adiabatic visualisation setup as well as a diabatic setup.Three characteristic flow patterns were observed in the considered range of two-phase flow: bubbly flow, film flow and slug flow. The occurrence of these flow patterns is a function of mass flux, void fraction, fluid properties and plate geometry. Two different plate geometries having a corrugation angle of 27° and 63°, respectively and two different fluids (water/air and R365mfc liquid/vapor) have been analysed. A flow pattern map using the momentum flux is presented.
License of this version: CC BY 3.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2016
Appears in Collections:Fakultät für Maschinenbau

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pos. country downloads
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1 image of flag of Germany Germany 16 66.67%
2 image of flag of United States United States 4 16.67%
3 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 1 4.17%
4 image of flag of India India 1 4.17%
5 image of flag of China China 1 4.17%
6 image of flag of Switzerland Switzerland 1 4.17%

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