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Energy and Exergy Analysis of Using Turbulator in a Parabolic Trough Solar Collector Filled with Mesoporous Silica Modified with Copper Nanoparticles Hybrid Nanofluid

Author

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  • Sara Rostami

    (Laboratory of Magnetism and Magnetic Materials, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
    Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam)

  • Amin Shahsavar

    (Department of Mechanical Engineering, Kermanshah University of Technology, Kermanshah 6715685420, Iran)

  • Gholamreza Kefayati

    (School of Engineering, University of Tasmania, Hobart, Tasmania 7005, Australia)

  • Aysan Shahsavar Goldanlou

    (Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
    Faculty of Electrical—Electronic Engineering, Duy Tan University, Da Nang 550000, Vietnam)

Abstract

Designing the most efficient parabolic trough solar collector (PTSC) is still a demanding and challenging research area in solar energy systems. Two effective recommended methods for this purpose that increase the thermal characteristics of PTSCs are adding turbulators and nanofluids. To study the effects of the two approaches on the energy efficiency of PTSCs, a stainless steel turbulator was used and solid nanoparticles of Cu/SBA-15 were added to the water with the volume concentrations of 0.019% to 0.075%. The generated turbulence in the fluid flow was modeled by the SST k–ω turbulent model. The results in daylight demonstrated that energy efficiency increases steadily by 11:30 a.m., and then, starts to drop gradually due to more irradiations at noon. It was observed that applying the turbulator to the studied PTSC has a significant influence on the enhancement of energy efficiency. Adding the nanoparticles augmented the average Nusselt number inside the solar collector in various studied Reynolds numbers. It was also found that the increase in volume concentrations of nanoparticles enhances heat transfer regularly.

Suggested Citation

  • Sara Rostami & Amin Shahsavar & Gholamreza Kefayati & Aysan Shahsavar Goldanlou, 2020. "Energy and Exergy Analysis of Using Turbulator in a Parabolic Trough Solar Collector Filled with Mesoporous Silica Modified with Copper Nanoparticles Hybrid Nanofluid," Energies, MDPI, vol. 13(11), pages 1-16, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:11:p:2946-:d:368930
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    References listed on IDEAS

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    Cited by:

    1. Sylwia Wciślik, 2020. "Efficient Stabilization of Mono and Hybrid Nanofluids," Energies, MDPI, vol. 13(15), pages 1-26, July.
    2. Atul Bhattad & Vinay Atgur & Boggarapu Nageswar Rao & N. R. Banapurmath & T. M. Yunus Khan & Chandramouli Vadlamudi & Sanjay Krishnappa & A. M. Sajjan & R. Prasanna Shankara & N. H. Ayachit, 2023. "Review on Mono and Hybrid Nanofluids: Preparation, Properties, Investigation, and Applications in IC Engines and Heat Transfer," Energies, MDPI, vol. 16(7), pages 1-40, March.
    3. Vahidinia, F. & Khorasanizadeh, H. & Aghaei, A., 2023. "Energy, exergy, economic and environmental evaluations of a finned absorber tube parabolic trough collector utilizing hybrid and mono nanofluids and comparison," Renewable Energy, Elsevier, vol. 205(C), pages 185-199.
    4. Wiesław Zima & Artur Cebula & Piotr Cisek, 2020. "Mathematical Model of a Sun-Tracked Parabolic Trough Collector and Its Verification," Energies, MDPI, vol. 13(16), pages 1-24, August.

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