Abstract
In order to realize the higher performance heat pump, an electro-hydrodynamical (EHD) condenser utilizing the combination of two kinds of EHD phenomena has been researched. In this study, to maximize the augmentation effect, experimental study has been carried out to clarify the details of an EHD pseudo-dropwise condensation. The diameter of the drops has decreased according to the increase of the electric field. The condensation heat transfer coefficients have increased in proportion to the electric field strength to realize the maximum local heat transfer coefficients of over 9000 W/m2K in CFC 113 and over 11000 W/m2K in HCFC 123. Furthermore, the heat transfer coefficients have become of the same order under the condition of the the same quantity of falling condensate.
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