Abstract

The augmentation effects of an electro-hydrodynamical (EHD) liquid jet on convective and boiling heat transfer were experimentally and theoretically analyzed. The EHD liquid jet, which was the jet flow ejected through the ring electrode in the direction away from the plate, was produced by applying a high electric voltage between the ring electrode and the plate electrode. The convective heat transfer from the plate electrode was enhanced over 100 times by the forced convection and the turbulent effects of the EHD liquid jet. For the boiling heat transfer, the mean bubble detachment period was decreased, and the critical heat flux was enhanced over two times.

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