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Performance evaluation of photovoltaic thermal using MgO nanofluid

This study investigated the performance and efficiency of a photovoltaic thermal (PV/T) system utilizing a metal-based nanofluid, specifically MgO nanofluid. This research proposes MgO as nanoparticle to mix with base fluid because it demonstrated to have superior features with the highest thermal...

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Main Authors: Mohd Rosli, Mohd Afzanizam, Sam, Yih Herng, Salimen, Nurfahana, Herawan, Safarudin Ghazali, Hussain, Faridah
Format: Article
Language:English
Published: Semarak Ilmu Publishing 2023
Online Access:http://eprints.utem.edu.my/id/eprint/27603/2/0112916122023.PDF
http://eprints.utem.edu.my/id/eprint/27603/
https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/3820
https://doi.org/10.37934/arfmts.109.2.184209
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spelling my.utem.eprints.276032024-10-04T12:09:01Z http://eprints.utem.edu.my/id/eprint/27603/ Performance evaluation of photovoltaic thermal using MgO nanofluid Mohd Rosli, Mohd Afzanizam Sam, Yih Herng Salimen, Nurfahana Herawan, Safarudin Ghazali Hussain, Faridah This study investigated the performance and efficiency of a photovoltaic thermal (PV/T) system utilizing a metal-based nanofluid, specifically MgO nanofluid. This research proposes MgO as nanoparticle to mix with base fluid because it demonstrated to have superior features with the highest thermal conductivity and lowest viscosity among the metal oxide. The nanofluid offered improved thermophysical properties that enhanced the PV/T system performance. The study focused on formulating a stable nanofluid, determining its thermophysical properties, and analysing the overall system performance. 0.2wt% MgO nanofluid were successfully developed and demonstrated excellent stability over a 14-day period by using a two-step method which 20 minutes of homogenization at 1000rpm and 30 minutes of ultrasonication. Tests were conducted to determine the thermal conductivity and viscosity of the nanofluid at various concentrations and temperatures. Results showed that increasing the concentration and temperature enhanced thermal conductivity, while viscosity increased with concentration but decreased with temperature. The thermal and electrical efficiencies of the PV/T system at various irradiances (200W/m2, 500W/m2 and 800W/m2), and flow rates (10L/h, 20L/h, 30L/h) were examined, calculated and compared between water and the MgO nanofluid as working fluids. At 10L/h, it was observed that nanofluid had the highest 74% of thermal efficiency increment compared to the water at 500W/m2 followed by 71% at 200w/m2 and 55% at 800W/m2. Also, Nanofluid demonstrated a 5% increase in electrical efficiency at 200W/m2, 2.1% increase at 500W/m2 , and 1.9% increase at 800W/m2 compared to water. The nanofluid exhibited superior thermal and electrical efficiency compared to water, indicating its potential for improving system performance hence, surpassing the performance of a standalone PV system. Semarak Ilmu Publishing 2023-09 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/27603/2/0112916122023.PDF Mohd Rosli, Mohd Afzanizam and Sam, Yih Herng and Salimen, Nurfahana and Herawan, Safarudin Ghazali and Hussain, Faridah (2023) Performance evaluation of photovoltaic thermal using MgO nanofluid. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 109 (2). pp. 184-209. ISSN 2289-7879 https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/3820 https://doi.org/10.37934/arfmts.109.2.184209
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
description This study investigated the performance and efficiency of a photovoltaic thermal (PV/T) system utilizing a metal-based nanofluid, specifically MgO nanofluid. This research proposes MgO as nanoparticle to mix with base fluid because it demonstrated to have superior features with the highest thermal conductivity and lowest viscosity among the metal oxide. The nanofluid offered improved thermophysical properties that enhanced the PV/T system performance. The study focused on formulating a stable nanofluid, determining its thermophysical properties, and analysing the overall system performance. 0.2wt% MgO nanofluid were successfully developed and demonstrated excellent stability over a 14-day period by using a two-step method which 20 minutes of homogenization at 1000rpm and 30 minutes of ultrasonication. Tests were conducted to determine the thermal conductivity and viscosity of the nanofluid at various concentrations and temperatures. Results showed that increasing the concentration and temperature enhanced thermal conductivity, while viscosity increased with concentration but decreased with temperature. The thermal and electrical efficiencies of the PV/T system at various irradiances (200W/m2, 500W/m2 and 800W/m2), and flow rates (10L/h, 20L/h, 30L/h) were examined, calculated and compared between water and the MgO nanofluid as working fluids. At 10L/h, it was observed that nanofluid had the highest 74% of thermal efficiency increment compared to the water at 500W/m2 followed by 71% at 200w/m2 and 55% at 800W/m2. Also, Nanofluid demonstrated a 5% increase in electrical efficiency at 200W/m2, 2.1% increase at 500W/m2 , and 1.9% increase at 800W/m2 compared to water. The nanofluid exhibited superior thermal and electrical efficiency compared to water, indicating its potential for improving system performance hence, surpassing the performance of a standalone PV system.
format Article
author Mohd Rosli, Mohd Afzanizam
Sam, Yih Herng
Salimen, Nurfahana
Herawan, Safarudin Ghazali
Hussain, Faridah
spellingShingle Mohd Rosli, Mohd Afzanizam
Sam, Yih Herng
Salimen, Nurfahana
Herawan, Safarudin Ghazali
Hussain, Faridah
Performance evaluation of photovoltaic thermal using MgO nanofluid
author_facet Mohd Rosli, Mohd Afzanizam
Sam, Yih Herng
Salimen, Nurfahana
Herawan, Safarudin Ghazali
Hussain, Faridah
author_sort Mohd Rosli, Mohd Afzanizam
title Performance evaluation of photovoltaic thermal using MgO nanofluid
title_short Performance evaluation of photovoltaic thermal using MgO nanofluid
title_full Performance evaluation of photovoltaic thermal using MgO nanofluid
title_fullStr Performance evaluation of photovoltaic thermal using MgO nanofluid
title_full_unstemmed Performance evaluation of photovoltaic thermal using MgO nanofluid
title_sort performance evaluation of photovoltaic thermal using mgo nanofluid
publisher Semarak Ilmu Publishing
publishDate 2023
url http://eprints.utem.edu.my/id/eprint/27603/2/0112916122023.PDF
http://eprints.utem.edu.my/id/eprint/27603/
https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/3820
https://doi.org/10.37934/arfmts.109.2.184209
_version_ 1812129252635574272
score 13.211869

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