In this paper, the thermal performance of nanostructured (CuO nanostructures) copper multiple parallel microchannels for single-phase flow is studied. The test section consists of 6 parallel channels and each channel is 350 µm wide and 605 µm deep with an aspect ratio of 1.729. Microchannels are covered on the top surface with an acrylic sheet. A cartridge heater is inserted at the bottom of the microchannels for supplying the desired heat flux and the position of the heater is determined numerically. Deionized water (DI) is used as the working fluid in the experiment. Single-phase pressure drop and heat transfer coefficient in multiple nanostructured microchannels are measured. A maximum enhancement of ~21% in Nusselt number is reported without any observable increase in pressure drop upon the incorporation of nanostructured in microchannels. The current study could provide a suitable low-cost framework for investigating the potential of nanostructures in further enhancement of single phase heat transfer coefficients in microchannel geometry.
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