Search Results - "Oztop, Hakan"

Experimental study for the application of different cooling techniques in photovoltaic (PV) panels by Bayrak, Fatih, Oztop, Hakan F., Selimefendigil, Fatih

“…•This article contains the experimental investigations of different cooling methods used for photovoltaic (PV) panels.•Phase change material (PCM),…”
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Magnetohydrodynamics forced convection of nanofluid in multi-layered U-shaped vented cavity with a porous region considering wall corrugation effects by Selimefendigil, Fatih, Öztop, Hakan F.

“…Magnetohydrodynamics forced convection of CNT-water nanofluid in a layered U-shaped vented cavity involving a porous region is investigated under the impact of…”
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A review of melting and freezing processes of PCM/nano-PCM and their application in energy storage by Rostami, Sara, Afrand, Masoud, Shahsavar, Amin, Sheikholeslami, M., Kalbasi, Rasool, Aghakhani, Saeed, Shadloo, Mostafa Safdari, Oztop, Hakan F.

“…Phase change materials (PCMs) are capable of storing energy as latent energy by changing the phase and provide the stored energy when they are returned to…”
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A review on how the researchers prepare their nanofluids by Haddad, Zoubida, Abid, Chérifa, Oztop, Hakan F., Mataoui, Amina

“…The past decade has seen the rapid development of nanofluid science in different aspects, where the researchers focused mainly on the enhancement of heat…”
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Experimental analysis and dynamic modeling of a photovoltaic module with porous fins by Selimefendigil, Fatih, Bayrak, Fatih, Oztop, Hakan F.

“…In this study, experimental analysis and performance predictions of solar photovoltaic (PV) module equipped with porous fins were performed. The experimental…”
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Effects of different fin parameters on temperature and efficiency for cooling of photovoltaic panels under natural convection by Bayrak, Fatih, Oztop, Hakan F., Selimefendigil, Fatih

“…•Performance of a 75 W PV panels with polycrystalline under Elazig/Turkey climatic conditions were investigated.•The system performances were analyzed by…”
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A review on entropy generation in natural and mixed convection heat transfer for energy systems by Oztop, Hakan F., Al-Salem, Khaled

“…This paper reviews the second law analysis of thermodynamics in enclosures due to buoyancy-induced flow for energy systems. It defines entropy generation…”
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Numerical study of natural convection in partially heated rectangular enclosures filled with nanofluids by Oztop, Hakan F., Abu-Nada, Eiyad

“…Heat transfer and fluid flow due to buoyancy forces in a partially heated enclosure using nanofluids is carried out using different types of nanoparticles. The…”
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Effects of inclination angle on natural convection in enclosures filled with Cu–water nanofluid by Abu-Nada, Eiyad, Oztop, Hakan F.

“…Effects of inclination angle on natural convection heat transfer and fluid flow in a two-dimensional enclosure filled with Cu-nanofluid has been analyzed…”
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Effects of static and dynamic shading on thermodynamic and electrical performance for photovoltaic panels by Bayrak, Fatih, Oztop, Hakan F.

“…•The power or efficiency losses in dynamic shading are time dependent.•The minimum power loss was 6% in one-month dusty panel.•The lowest power generation in…”
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Effects of partial shading on energy and exergy efficiencies for photovoltaic panels by Bayrak, Fatih, Ertürk, Gamze, Oztop, Hakan F.

“…Photovoltaic (PV) technology becomes very popular with development of material science among the indispensable of solar energy in recent years. In this paper…”
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Energy and exergy analyses of porous baffles inserted solar air heaters for building applications by Bayrak, Fatih, Oztop, Hakan F., Hepbasli, Arif

“…► Assessing and comparing the performance of five types of solar air heaters. ► Determining energy and exergy efficiencies using energy and exergy analysis…”
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Melting of phase change materials in a trapezoidal cavity: Orientation and nanoparticles effects by Iachachene, Farida, Haddad, Zoubida, Oztop, Hakan F., Abu-Nada, Eiyad

“…A transient two-dimensional numerical study based on the enthalpy-porosity technique was carried out on the melting of a phase change material (PCM) embedded…”
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Numerical investigation of a novel tube design for the geothermal borehole heat exchanger by Bouhacina, Benamar, Saim, Rachid, Oztop, Hakan F.

“…The fins are mainly used to enhance the heat transfer in several energy systems and one of them is the geothermal borehole heat exchanger (GHE). Therefore, the…”
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Natural convection in a CuO–water nanofluid filled cavity under the effect of an inclined magnetic field and phase change material (PCM) attached to its vertical wall by Selimefendigil, Fatih, Oztop, Hakan F., Chamkha, Ali J.

“…In this study, natural convection of CuO–water nanofluid in a square cavity with a conductive partition and a phase change material (PCM) attached to its…”
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Energetic and exergetic aspects of solar air heating (solar collector) systems by Oztop, Hakan F., Bayrak, Fatih, Hepbasli, Arif

“…Solar air heating (solar collector) is a renewable heating technology and provides heat using solar energy. With fuel costs and other factors, solar air…”
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A review on natural convective heat transfer of nanofluids by Haddad, Zoubida, Oztop, Hakan F., Abu-Nada, Eiyad, Mataoui, Amina

“…Nanofluids are considered to have great potential for heat transfer enhancement and are highly suited to application in practical heat transfer processes…”
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MHD mixed convection in a nanofluid filled vertical lid-driven cavity having a flexible fin attached to its upper wall by Selimefendigil, Fatih, Oztop, Hakan F., Chamkha, Ali J.

“…In this study, fluid flow and heat transfer in a vertical lid-driven CuO–water nanofluid filled square cavity with a flexible fin attached to its upper wall…”
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Mixed convection characteristic in a lid-driven cavity containing heated triangular block: Effect of location and size of block by Gangawane, Krunal M., Oztop, Hakan F., Abu-Hamdeh, Nidal

“…•The work examines the influence of the location of heated triangular block along the vertical centerline of cavity.•The change in the position of block is…”
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Effect of uniform inclined magnetic field on mixed convection in a lid-driven cavity having a horizontal porous layer saturated with a ferrofluid by Gibanov, Nikita S., Sheremet, Mikhail A., Oztop, Hakan F., Abu-Hamdeh, Nidal

“…•MHD mixed convection in a lid-driven cavity partially filled with a porous medium saturated with ferrofluid studied.•Governing equations are formulated on the…”
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