Experimental investigation of using ZnO nanofluids as coolants in a PEM fuel cell

Islam, R, Shabani, B, Andrews, J and Rosengarten, G 2017, 'Experimental investigation of using ZnO nanofluids as coolants in a PEM fuel cell', International Journal of Hydrogen Energy, vol. 42, no. 30, pp. 19272-19286.

Document type: Journal Article
Collection: Journal Articles

Title Experimental investigation of using ZnO nanofluids as coolants in a PEM fuel cell
Author(s) Islam, R
Shabani, B
Andrews, J
Rosengarten, G
Year 2017
Journal name International Journal of Hydrogen Energy
Volume number 42
Issue number 30
Start page 19272
End page 19286
Total pages 15
Publisher Elsevier
Abstract In this paper we report on an experimental study conducted on the thermo-electrical performance of a small-scale (i.e. 2.4 kW) Proton Exchange Membrane Fuel Cell (PEMFC), in which both conventional 50/50 water-Ethylene Glycol (EG), and 50/50 water-EG based ZnO nanofluids were used as coolants. PEMFCs are a promising alternative to Internal Combustion Engines (ICEs) for automotive applications. However, among other challenges, the large-sized cooling system of PEMFCs (i.e. the radiator) imposes a great challenge for this application. Using nanofluids as coolants has the potential to address this challenge. Employing selected nanofluids as coolants, with maximum 0.5 vol% nanoparticle concentration, showed no change in the electrical power outputs of the stack based on its polarisation curve, whereas the cooling capacity of the system was improved 29% compared with that while using 50/50 water-EG as coolant. The experimental investigation reported here confirmed the earlier theoretical finding that the frontal area of the radiator (i.e. used for fuel cell cooling) could be reduced by about 27% when nanofluids (0.5 vol%) replaced conventional EG/water coolants. Using 0.5 vol% ZnO nanofluid also showed just less than 10% increase in the pumping power compared to when the conventional 50/50 water-EG was used as coolant. It is concluded in this study that up to 0.5 vol% ZnO nanofluid can be applied to the PEMFC cooling system without affecting any electrical performance of the system.
Subject Energy Generation, Conversion and Storage Engineering
Heat and Mass Transfer Operations
Keyword(s) PEMFCs
Heat exchanger
Pumping power
DOI - identifier 10.1016/j.ijhydene.2017.06.087
Copyright notice © 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
ISSN 0360-3199
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 20 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 0 times in Scopus Article
Altmetric details:
Access Statistics: 30 Abstract Views  -  Detailed Statistics
Created: Wed, 19 Sep 2018, 13:27:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us