Heat transfer of advanced coolant dispersed with hybrid oxides nanoparticles in PEMFC cooling plates / Saifuddin Khalid @ Chik

Thermal management analysis has always been a major concern in the energy-based sector. Thermal management in Proton Exchange Membrane Fuel Cell (PEMFC), as one of the leading green energy converter, is extremely important to ensure efficient heat extraction from the system. The low operating tem...

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Main Author:	Khalid @ Chik, Saifuddin
Format:	Thesis
Language:	English
Published:	2020
Subjects:	Temperature measurements
Online Access:	https://ir.uitm.edu.my/id/eprint/60052/1/60052.pdf
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spelling	my-uitm-ir.600522022-05-21T01:27:42Z Heat transfer of advanced coolant dispersed with hybrid oxides nanoparticles in PEMFC cooling plates / Saifuddin Khalid @ Chik 2020-08 Khalid @ Chik, Saifuddin Temperature measurements Thermal management analysis has always been a major concern in the energy-based sector. Thermal management in Proton Exchange Membrane Fuel Cell (PEMFC), as one of the leading green energy converter, is extremely important to ensure efficient heat extraction from the system. The low operating temperature of PEMFC has been known to reduce the rate of heat transfer which contribute to large volume space consumption for the cooling mechanism. The low electrical conductivity requirement of the system also limited the implementation of the well-established nanofluids as a coolant in PEMFC. This research aims to study the effect of hybrid nanofluids Al2O3-SiO2 with 0.5% volume concentration dispersed in base fluid water to heat transfer enhancement in PEMFC. Nine different ratios of hybrid Al2O3-SiO2 nanofluids were investigated, starting from 10:90 (Al2O3:SiO2) to 90:10. Three thermophysical characteristics affecting heat transfer of fluids were analyzed namely thermal conductivity, electrical conductivity and dynamic viscosity of each sample. Correlation between properties was investigated using property enhancement ratio (PER) of thermo-electrical and thermo-hydraulic of each sample. Investigations made on two different cooling plates which are Serpentine-type and Distributor-type to obtain Nusselt number and pumping power requirement through the adoption of hybrid nanofluids in PEMFC. At the end of the experiment, the most feasible nanofluids ratio and cooling plate type for PEMFC application was selected. The Al2O3-SiO2 hybrid nanofluids with ratio R1 (10:90) is shown as the most prominent ratio among all samples of Al2O3-SiO2 hybrid nanofluids. Ratio R1 (10:90) exhibits the highest convective heat transfer coefficient and Nusselt number but show higher pumping power requirement as compared to the other ratios. Serpentine-type cooling plate shows the most feasible cooling plate with the highest convective heat transfer and Nusselt number at all ratios. It also shows a lower value in pumping power as compared to Distributor-type plate. 2020-08 Thesis https://ir.uitm.edu.my/id/eprint/60052/ https://ir.uitm.edu.my/id/eprint/60052/1/60052.pdf text en public masters Universiti Teknologi MARA Faculty of Mechanical Engineering Zakaria, Irnie Azlin (Ir. Dr.)
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Zakaria, Irnie Azlin (Ir. Dr.)
topic	Temperature measurements
spellingShingle	Temperature measurements Khalid @ Chik, Saifuddin Heat transfer of advanced coolant dispersed with hybrid oxides nanoparticles in PEMFC cooling plates / Saifuddin Khalid @ Chik
description	Thermal management analysis has always been a major concern in the energy-based sector. Thermal management in Proton Exchange Membrane Fuel Cell (PEMFC), as one of the leading green energy converter, is extremely important to ensure efficient heat extraction from the system. The low operating temperature of PEMFC has been known to reduce the rate of heat transfer which contribute to large volume space consumption for the cooling mechanism. The low electrical conductivity requirement of the system also limited the implementation of the well-established nanofluids as a coolant in PEMFC. This research aims to study the effect of hybrid nanofluids Al2O3-SiO2 with 0.5% volume concentration dispersed in base fluid water to heat transfer enhancement in PEMFC. Nine different ratios of hybrid Al2O3-SiO2 nanofluids were investigated, starting from 10:90 (Al2O3:SiO2) to 90:10. Three thermophysical characteristics affecting heat transfer of fluids were analyzed namely thermal conductivity, electrical conductivity and dynamic viscosity of each sample. Correlation between properties was investigated using property enhancement ratio (PER) of thermo-electrical and thermo-hydraulic of each sample. Investigations made on two different cooling plates which are Serpentine-type and Distributor-type to obtain Nusselt number and pumping power requirement through the adoption of hybrid nanofluids in PEMFC. At the end of the experiment, the most feasible nanofluids ratio and cooling plate type for PEMFC application was selected. The Al2O3-SiO2 hybrid nanofluids with ratio R1 (10:90) is shown as the most prominent ratio among all samples of Al2O3-SiO2 hybrid nanofluids. Ratio R1 (10:90) exhibits the highest convective heat transfer coefficient and Nusselt number but show higher pumping power requirement as compared to the other ratios. Serpentine-type cooling plate shows the most feasible cooling plate with the highest convective heat transfer and Nusselt number at all ratios. It also shows a lower value in pumping power as compared to Distributor-type plate.
format	Thesis
qualification_level	Master's degree
author	Khalid @ Chik, Saifuddin
author_facet	Khalid @ Chik, Saifuddin
author_sort	Khalid @ Chik, Saifuddin
title	Heat transfer of advanced coolant dispersed with hybrid oxides nanoparticles in PEMFC cooling plates / Saifuddin Khalid @ Chik
title_short	Heat transfer of advanced coolant dispersed with hybrid oxides nanoparticles in PEMFC cooling plates / Saifuddin Khalid @ Chik
title_full	Heat transfer of advanced coolant dispersed with hybrid oxides nanoparticles in PEMFC cooling plates / Saifuddin Khalid @ Chik
title_fullStr	Heat transfer of advanced coolant dispersed with hybrid oxides nanoparticles in PEMFC cooling plates / Saifuddin Khalid @ Chik
title_full_unstemmed	Heat transfer of advanced coolant dispersed with hybrid oxides nanoparticles in PEMFC cooling plates / Saifuddin Khalid @ Chik
title_sort	heat transfer of advanced coolant dispersed with hybrid oxides nanoparticles in pemfc cooling plates / saifuddin khalid @ chik
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Mechanical Engineering
publishDate	2020
url	https://ir.uitm.edu.my/id/eprint/60052/1/60052.pdf
_version_	1783735076595433472

Heat transfer of advanced coolant dispersed with hybrid oxides nanoparticles in PEMFC cooling plates / Saifuddin Khalid @ Chik

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