Thermal effectiveness of solar collector using Graphene nanostructures suspended in ethylene glycol–water mixtures

Ali Omran Al-Sulttani; Mohammed Suleman Aldlemy; Musaddak M. Abdul Zahra; Hamed A. Gatea; Khaled Mohamed Khedher; Miklas Scholz; Zaher Mundher Yaseen

Energy Reports (Nov 2022)

Thermal effectiveness of solar collector using Graphene nanostructures suspended in ethylene glycol–water mixtures

Ali Omran Al-Sulttani,
Mohammed Suleman Aldlemy,
Musaddak M. Abdul Zahra,
Hamed A. Gatea,
Khaled Mohamed Khedher,
Miklas Scholz,
Zaher Mundher Yaseen

Affiliations

Ali Omran Al-Sulttani: Department of Water Resources Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq
Mohammed Suleman Aldlemy: Department of Mechanical Engineering, Collage of Mechanical Engineering Technology, Benghazi, Libya; Center for Solar Energy Research and Studies (CSERS), Benghazi, Libya
Musaddak M. Abdul Zahra: Electrical Engineering Department, College of Engineering, University of Babylon, Hilla, Babil, Iraq; Computer Techniques Engineering Department, Al-Mustaqbal University College, Hilla, Babil, Iraq
Hamed A. Gatea: Radiology Department, College of Health and Medicine Technology, Al-Ayen University, Thi-Qar, Iraq
Khaled Mohamed Khedher: Department of Civil Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia; Department of Civil Engineering, High Institute of Technological Studies, Mrezgua University Campus, Nabeul 8000, Tunisia
Miklas Scholz: Division of Water Resources Engineering, Faculty of Engineering, Lund University, P.O. Box 118, 221 00 Lund, Sweden; Department of Civil Engineering Science, School of Civil Engineering and the Built Environment, University of Johannesburg, Kingsway Campus, PO Box 524, Aukland Park 2006, Johannesburg, South Africa; Department of Town Planning, Engineering Networks and Systems, South Ural State University (National Research University), 76, Lenin Prospekt, Chelyabinsk 454080, Russian Federation; Institute of Environmental Engineering, Wroclaw University of Environmental and Life Sciences, ul. Nor-wida 25, 50-375 Wrocław, Poland; Corresponding authors.
Zaher Mundher Yaseen: Department of Town Planning, Engineering Networks and Systems, South Ural State University (National Research University), 76, Lenin Prospekt, Chelyabinsk 454080, Russian Federation; New Era and Development in Civil Engineering Research Group, Scientific Research Center, Al-Ayen University, Thi-Qar, 64001, Iraq; College of Creative Design, Asia University, Taichung City, Taiwan; Corresponding authors.

Journal volume & issue: Vol. 8
pp. 1867 – 1882

Abstract

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Flat plate solar collectors (FPSCs) are the most often used as solar collectors due to their easiness of installation and usage. The current research investigates the energy efficiency of FPSC using different mass concentration with varied base fluids containing Graphene nanofluids (T-Gr). Mass concentration of 0.1%-wt., 0.075%-wt., 0.050%-wt. and 0.025%-wt. were mixed with ethylene glycol (EG) and distilled water (DW) in different rations. The operating conditions were volumetric flowrate (1.5, 1 and 0.5) LPM 50 °C-input fluid temperature and 800 W/m2-global solar irradiation. Scanning electron microscope (SEM) and energy dispersive X-ray (EDX) were used to synthesize the thermally treated nanomaterial. The theoretical investigation indicated that using T-Gr nanosuspensions increased the FPSC efficiency in comparison with the host fluid for all examined mass concentrations and volumetric flowrates. In quantitative terms, the maximum thermal effectiveness improvement for the EG, (DW:70 + EG:30) and DW:EG (DW:50 + EG:50) and using flowrates of (1.5, 1 and 0.5) LPM were 12.54%, 12.46% and 12.48%. In addition, the research results pointed that the essential parameters (i.e., loss energy (FRUL)) and gain energy (FR(τα)) of the T-Gr nanofluids were increased significantly.

Published in Energy Reports

ISSN: 2352-4847 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: http://www.journals.elsevier.com/energy-reports/

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