Efficiency of a photovoltaic thermal (PVT) system using bio-nanofluid based on virgin coconut oil-graphene with additive surfactant: An experimental study

Mohd Rosli, Mohd Afzanizam and Permanasari, Avita Ayu and Puspitasari, Poppy and Sukarni Sukarni and Habibi, Ilham Akbar and Muhamed Rafaizul, Nurul Izzati Akmal and Herawan, Safarudin Gazali (2023) Efficiency of a photovoltaic thermal (PVT) system using bio-nanofluid based on virgin coconut oil-graphene with additive surfactant: An experimental study. Journal of Advanced Research in Applied Sciences and Engineering Technology, 34 (2). pp. 287-304. ISSN 2462-1943

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Abstract

This study explores the efficiency of photovoltaic thermal (PVT) system using bio-nanofluid based on virgin coconut oil (VCO). This research proposes bio-nanofluid as dispersion media because of their potential in medium to high temperature applications in terms of thermal output, biodegradable, and renewable. Graphene nanoplatelets (GNP) were prepared in a mass fraction of 0.1% wt. Then, the ratio for the surfactant was a 1:1 nanoparticle. The surfactants used in this study were Polyvinylpyrrolidone (PVP), Sodium dodecyl sulfate (SDS), and Cetyltrimethylammonium bromide (CTAB). The two-stage method was used for the bio nanofluid synthesis. Further, the samples were tested for physical and thermophysical properties. From the stability test, we discovered stable dispersion from VCO-GNP-PVP bio-nanofluid sample during the 30 days of testing. The bio-nanofluid samples also presented an increase in thermal conductivity following its stability, with the highest conductivity value (0.158 W/m.K) observed on the VCO-GNP-PVP sample. The efficiency test results on additive surfactant and flow rate show the optimum flow rate of 7 mL/s on VCO-GNP-PVP bio-nanofluid, with thermal and electric efficiency of 25.169% and 8.632%, respectively.

Item Type:	Article
Uncontrolled Keywords:	Photovoltaic/thermal system, Bio-nanofluid, Flow rate, Heat transfer, Efficiency
Divisions:	Faculty of Mechanical Engineering
Depositing User:	Sabariah Ismail
Date Deposited:	01 Jul 2024 14:30
Last Modified:	01 Jul 2024 14:30
URI:	http://eprints.utem.edu.my/id/eprint/27262
Statistic Details:	View Download Statistic

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