Fouling formation and thermal performance of aqueous carbon nanotube nanofluid in a heat sink with rectangular parallel microchannel

•Experimental investigation on thermal performance of microchannel heat sink.•Aqueous CNT nanofluids at wt.%=0.05–0.1 were used as the coolant.•Lower temperature profile and higher HTC were recorded for nanofluids.•Fouling thermal resistance showed an asymptotic behavior over the time. Experimental...

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