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All Journal SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin
Avita Ayu Permanasari
Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Negeri Malang
Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Impact of MgO Nanofluid Concentration on Thermal and Electrical Efficiency of PV/T Systems: A CFD and Experimental Study Bryan Amrizha; Avita Ayu Permanasari
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 19 No. 1 (2025): SINTEK JURNAL
Publisher : Faculty of Engineering, Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.19.1.61-71

Abstract

This study investigates the effect of Magnesium Oxide (MgO) nanofluid concentration on the thermal and electrical efficiency of photovoltaic thermal (PV/T) systems using both experimental characterization and Computational Fluid Dynamics (CFD) simulation. Inlet flow rates (0.5–2.5 L/min) and MgO volume fractions (0.08%–0.4%) were varied. Experimental results confirm nanofluid stability for over 15 days at concentrations up to 0.2 vol%. CFD simulations using ANSYS Fluent reveal that the highest collector thermal efficiency of 69.1% is achieved at 0.2 vol% and 1.5 L/min, which is 16.7% higher than when using distilled water (DW) or ethylene glycol (EG) alone. The absorbed energy factor increases by 16.74%, while heat loss decreases by 52.2%. These findings highlight the significant performance gains attainable through optimized MgO nanofluid use in PV/T systems.
Co-Authors Bryan Amrizha