Enhancement in the pool boiling heat transfer of copper surface by applying electrophoretic deposited graphene oxide coatings

We present the boiling characteristics of a copper surface coated by graphene oxide (GO) using the electro-phoretic deposition (EPD) method. Three different concentrations of GO solutions (1, 3, and 5 mg/ml) were tested. It was found that the surface properties of the coated surfaces were improved in terms of porosity, wettability, and nucleation sites, which resulted in the rapid cooling and rewetting of the hot and dry points on the surface. Different electrolyte concentrations and coatings were tested to optimize the heat transfer coefficient (HTC) and critical heat flux (CHF). For coating with 1 mg/ml GO coating, the HTC and CHF were improved by 60.3% and 90.5% compared to the uncoated surface.

Automated summary

The boiling characteristics of a copper surface coated with graphene oxide (GO) using the electro-phoretic deposition (EPD) method are presented. Three different concentrations of GO solutions (1, 3, and 5 mg/ml) were tested. The coated surfaces exhibited improved surface properties, resulting in rapid cooling and rewetting of hot and dry points. Different electrolyte concentrations and coatings were tested to optimize the heat transfer coefficient (HTC) and critical heat flux (CHF). The HTC and CHF were improved by 60.3% and 90.5%, respectively, for the 1 mg/ml GO coating compared to the uncoated surface.