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Title: Thermal performance of Al{sub 2}O{sub 3} in water - ethylene glycol nanofluid mixture as cooling medium in mini channel

Continuous need for an optimum conversion efficiency of a Proton Exchange Membrane Fuel Cell (PEMFC) operation has triggered varieties of advancements namely on the thermal management engineering scope. Nanofluids as an innovative heat transfer fluid solution are expected to be a promising candidate for alternative coolant in mini channel cooling plate of PEMFC. In this work, heat transfer performance of low concentration of 0.1, 0.3 and 0.5 % Al{sub 2}O{sub 3} in water: Ethylene glycol (EG) mixtures of 100:0 and 50:50 nanofluids have been studied and compared against its base fluids at Re number ranging from 10 to 100. A steady, laminar and incompressible flow with constant heat flux is assumed in the channel of 140mm × 200mm. It was found that nanofluids have performed better than the base fluid but the demerit is on the pumping power due to the higher pressure drop across mini channel geometry as expected.
Authors:
; ; ; ;  [1]
  1. Alternative Energy Research Centre (AERC), Faculty of Mechanical Engineering, Universiti Teknologi Mara (UiTM), 40450 Shah Alam, Selangor (Malaysia)
Publication Date:
OSTI Identifier:
22488763
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1674; Journal Issue: 1; Conference: ICASIT2015: International conference on applied sciences and industrial technology, Negeri Sembilan (Malaysia), 24-26 Feb 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM OXIDES; COMPARATIVE EVALUATIONS; CONCENTRATION RATIO; COOLING; GLYCOLS; HEAT FLUX; HEAT TRANSFER; HEAT TRANSFER FLUIDS; INCOMPRESSIBLE FLOW; NANOFLUIDS; PLATES; PROTON EXCHANGE MEMBRANE FUEL CELLS; WATER