Condensation heat transfer in plate heat exchangers

Conference · Wed May 01 04:00:00 EDT 1985

OSTI ID:5573941

Panchal, C B

An Alfa-Laval plate heat exchanger, previously tested as an evaporator, was retested as a condenser. Two series of tests with different chevron-angle plates were carried out using ammonia as a working fluid. The overall heat-transfer coefficient and pressure drop were measured, and the effects of operating parameters were determined. The experimental data were compared with theoretical predictions. In the analysis, a gravity-controlled condensation process was modeled theoretically, and the overall performance was calculated. The analysis shows that the overall heat-transfer coefficient can be predicted with an average uncertainty of about 10%. It is, however, important to consider the interfacial shear stress, because the effective friction factor is high for flow in plate heat exchangers.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5573941
• Report Number(s): CONF-850810-19; ON: DE85012369
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140800* -- Solar Energy-- Ocean Energy Systems
AMMONIA
CONDENSERS
DATA
ENERGY TRANSFER
EXPERIMENTAL DATA
FLOW MODELS
FLOW RATE
FLUIDS
HEAT EXCHANGERS
HEAT FLUX
HEAT TRANSFER
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
MATHEMATICAL MODELS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
PERFORMANCE TESTING
PRESSURE DROP
TEMPERATURE MEASUREMENT
TESTING
WORKING FLUIDS