The Experimental Determination Of
Heat Transfer And Pressure Drop During
Condensation In A Plate Heat Exchanger
With Corrugated Plates
Author(s)
A. Müller & S. Kabelac
Abstract
Plate heat exchangers (PHE) are well established apparatuses with a broad field
of application due to their high thermal efficiency, compactness and cost
competitiveness. The objective of this work is the experimental investigation of
two-phase heat transfer and pressure drop during condensation in a vertical
corrugated plate gap. The apparatus used in the experiments is a three-stream
PHE of plate and frame construction with two heat transfer sections and an
intermediate plate. Experiments are conducted using two different chevron
angles (27° and 63°). The heat transfer coefficients are determined by local
recording of wall and fluid temperatures for obtaining differential energy
balances. Based on the measured integral pressure drop across the apparatus the
pressure gradient in the plate gap is recalculated locally by an adapted two-phase
calculation model, combining the homogenous and heterogeneous model. As
working fluids the refrigerant R134a and steam are used. For both working fluids
the results for the two plate types are compared and the influence of the chevron
angle on heat transfer and pressure loss is emphasized.
Keywords: heat exchanger, condensation, multistream, refrigerant R134a,
water steam.
Keywords
heat exchanger, condensation, multistream, refrigerant R134a,water steam.
Related Book
Other papers in this volume
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