Details
| Original language | English |
|---|---|
| Pages (from-to) | 155-169 |
| Number of pages | 15 |
| Journal | International Journal of Multiphase Flow |
| Volume | 91 |
| Early online date | 31 Jan 2017 |
| Publication status | Published - May 2017 |
Abstract
The two-phase flow in the corrugated gap created by two adjacent plates of a plate heat exchanger was investigated experimentally. One setup consisting of a transparent corrugated gap was used to visualize the two-phase flow pattern and study the local phenomena of phase distribution, pressure drop and void fraction. Saturated two-phase R365mfc and an air-water mixture were used as working fluids. In a second experimental setup, the heat transfer coefficients and the pressure drop inside an industrial plate heat exchanger during the condensation process of R134a are determined. Both experimental setups use the same type of plates, so the experimental results can be connected and a flow pattern model for the condensation in plate heat exchangers can be derived. In this work the results of the flow pattern visualization, the two-phase pressure drop in the corrugated gap and the void fraction analysis by measurement of the electrical capacity are presented. A new pressure drop correlation is derived, which takes into account different flow patterns, that appear during condensation. The mean deviation of the presented pressure drop model compared to the experimental data and data from other experimental works is 18.9%. 81.7% of the calculated pressure drop lies within ±30% compared to the experimental data.
Keywords
- Flow-pattern, Plate heat exchanger, Pressure drop, Two-phase, Void fraction
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Physics and Astronomy(all)
- Chemical Engineering(all)
- Fluid Flow and Transfer Processes
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In: International Journal of Multiphase Flow, Vol. 91, 05.2017, p. 155-169.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Experimental investigation of the flow pattern, pressure drop and void fraction of two-phase flow in the corrugated gap of a plate heat exchanger
AU - Grabenstein, Volker
AU - Polzin, Anja Elsa
AU - Kabelac, Stephan
N1 - Funding Information: The present work is funded by the German Research Foundation (DFG, KA1211/21) and also supported by Kelvion PHE GmbH, formerly GEA Ecoflex GmbH, Sarstedt, Germany. Publisher Copyright: © 2017 Elsevier Ltd Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2017/5
Y1 - 2017/5
N2 - The two-phase flow in the corrugated gap created by two adjacent plates of a plate heat exchanger was investigated experimentally. One setup consisting of a transparent corrugated gap was used to visualize the two-phase flow pattern and study the local phenomena of phase distribution, pressure drop and void fraction. Saturated two-phase R365mfc and an air-water mixture were used as working fluids. In a second experimental setup, the heat transfer coefficients and the pressure drop inside an industrial plate heat exchanger during the condensation process of R134a are determined. Both experimental setups use the same type of plates, so the experimental results can be connected and a flow pattern model for the condensation in plate heat exchangers can be derived. In this work the results of the flow pattern visualization, the two-phase pressure drop in the corrugated gap and the void fraction analysis by measurement of the electrical capacity are presented. A new pressure drop correlation is derived, which takes into account different flow patterns, that appear during condensation. The mean deviation of the presented pressure drop model compared to the experimental data and data from other experimental works is 18.9%. 81.7% of the calculated pressure drop lies within ±30% compared to the experimental data.
AB - The two-phase flow in the corrugated gap created by two adjacent plates of a plate heat exchanger was investigated experimentally. One setup consisting of a transparent corrugated gap was used to visualize the two-phase flow pattern and study the local phenomena of phase distribution, pressure drop and void fraction. Saturated two-phase R365mfc and an air-water mixture were used as working fluids. In a second experimental setup, the heat transfer coefficients and the pressure drop inside an industrial plate heat exchanger during the condensation process of R134a are determined. Both experimental setups use the same type of plates, so the experimental results can be connected and a flow pattern model for the condensation in plate heat exchangers can be derived. In this work the results of the flow pattern visualization, the two-phase pressure drop in the corrugated gap and the void fraction analysis by measurement of the electrical capacity are presented. A new pressure drop correlation is derived, which takes into account different flow patterns, that appear during condensation. The mean deviation of the presented pressure drop model compared to the experimental data and data from other experimental works is 18.9%. 81.7% of the calculated pressure drop lies within ±30% compared to the experimental data.
KW - Flow-pattern
KW - Plate heat exchanger
KW - Pressure drop
KW - Two-phase
KW - Void fraction
UR - http://www.scopus.com/inward/record.url?scp=85011949091&partnerID=8YFLogxK
U2 - 10.1016/j.ijmultiphaseflow.2017.01.012
DO - 10.1016/j.ijmultiphaseflow.2017.01.012
M3 - Article
AN - SCOPUS:85011949091
VL - 91
SP - 155
EP - 169
JO - International Journal of Multiphase Flow
JF - International Journal of Multiphase Flow
SN - 0301-9322
ER -