Title: The behaviour of nanofluids flooded in printed mini channels when excited by a small electrical potential

Authors: Ahmad Yusairi Bani Hashim; Azri Nazran Afandi; Imran Syakir Mohamad; Syazwani Zainal Abidin; Amirah Abdullah

Addresses: Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia ' Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia ' Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia ' Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia ' Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia

Abstract: This work sought to observe the response of a nanofluid put along in an electrical circuit while seeing the behaviour of the fluid. Would the nanofluids have a characteristic of an electrolyte? Two mini channels were constructed using additive manufacturing approach. The nanofluids were flooded in the channels where they were connected in series with a generic resistor in a low voltage circuit. The fluids' behaviours were observed through the recorded voltage drops at the resistor and also at the channel's start and end points, respectively. The results showed minute currents were flowing in the circuit as the fluids recorded high resistances. Therefore, the nanofluids are naturally high resistance electrolytes. However, the real nature of the fluids exposed to electrical potentials for a longer duration is unknown.

Keywords: mini channel; hydraulic diameter; carbon nanotube; carbon nanofibre; electrical conductivity; 3D printing; high resistance electrolyte.

DOI: 10.1504/IJNM.2020.104482

International Journal of Nanomanufacturing, 2020 Vol.16 No.1, pp.76 - 88

Received: 10 Jul 2017
Accepted: 15 Mar 2018
Published online: 14 Jan 2020 *

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