Details
| Original language | English |
|---|---|
| Pages (from-to) | 78-85 |
| Number of pages | 8 |
| Journal | Chemical Papers |
| Volume | 62 |
| Issue number | 1 |
| Publication status | Published - Feb 2008 |
| Externally published | Yes |
Abstract
The condensation heat transfer coefficient and the two-phase pressure drop of refrigerant R-134a in a vertical plate heat exchanger were investigated experimentally. The area of the plate was divided into several segments along the vertical axis. For each of the segments, local values of the heat transfer coefficient and frictional pressure drop were calculated and presented as a function of the mean vapor quality in the segment. Owing to the thermocouples installed along the plate surface, it was possible to determine the temperature distribution and vapor quality profile inside the plate. The influences of the mass flux and the heat flux on the heat transfer coefficient and the pressure drop were also taken into account and a comparison with previously published experimental data and literature correlations was carried out.
Keywords
- Condensation, Heat transfer coefficient, Plate heat exchanger, Pressure drop, R-134a
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Chemistry(all)
- General Chemistry
- Chemical Engineering(all)
- General Chemical Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
- Materials Science(all)
- Materials Chemistry
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In: Chemical Papers, Vol. 62, No. 1, 02.2008, p. 78-85.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Heat transfer coefficient and pressure drop during refrigerant R-134a condensation in a plate heat exchanger
AU - Djordjevic, Emila M.
AU - Kabelac, Stephan
AU - Šerbanović, Slobodan P.
N1 - Funding Information: Acknowledgements. Experimental investigation presented in this study was conducted in the Laboratory of the Institute of Thermodynamics at Helmut Schmidt University of Federal Armed Forces in Hamburg, Germany. The setup was partially supported by GEA Ecoflex GmbH, Sarstedt, Germany. The research visit of the first author in Hamburg was financed by the German Academic Exchange Bureau DAAD. Results reported in this study are also a part of the scientific project financed by the Serbian Ministry of Science. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2008/2
Y1 - 2008/2
N2 - The condensation heat transfer coefficient and the two-phase pressure drop of refrigerant R-134a in a vertical plate heat exchanger were investigated experimentally. The area of the plate was divided into several segments along the vertical axis. For each of the segments, local values of the heat transfer coefficient and frictional pressure drop were calculated and presented as a function of the mean vapor quality in the segment. Owing to the thermocouples installed along the plate surface, it was possible to determine the temperature distribution and vapor quality profile inside the plate. The influences of the mass flux and the heat flux on the heat transfer coefficient and the pressure drop were also taken into account and a comparison with previously published experimental data and literature correlations was carried out.
AB - The condensation heat transfer coefficient and the two-phase pressure drop of refrigerant R-134a in a vertical plate heat exchanger were investigated experimentally. The area of the plate was divided into several segments along the vertical axis. For each of the segments, local values of the heat transfer coefficient and frictional pressure drop were calculated and presented as a function of the mean vapor quality in the segment. Owing to the thermocouples installed along the plate surface, it was possible to determine the temperature distribution and vapor quality profile inside the plate. The influences of the mass flux and the heat flux on the heat transfer coefficient and the pressure drop were also taken into account and a comparison with previously published experimental data and literature correlations was carried out.
KW - Condensation
KW - Heat transfer coefficient
KW - Plate heat exchanger
KW - Pressure drop
KW - R-134a
UR - http://www.scopus.com/inward/record.url?scp=36849082991&partnerID=8YFLogxK
U2 - 10.2478/s11696-007-0082-8
DO - 10.2478/s11696-007-0082-8
M3 - Article
AN - SCOPUS:36849082991
VL - 62
SP - 78
EP - 85
JO - Chemical Papers
JF - Chemical Papers
SN - 0366-6352
IS - 1
ER -