Effect of hybrid nanofluid on heat transfer performance of parabolic trough solar collector receiver

Ekiciler, Recep; Arslan, Kamil; Turgut, Oğuz; Kurşun, Burak

doi:10.1007/s10973-020-09717-5

Cited by 101 publications

(28 citation statements)

References 50 publications

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“…It is prepared by dispersing two or more different nanoparticles in the base fluid. Studies using hybrid nanofluids in PTSC have been reported, by considering the following nanoparticles: Ag–MgO/water 13 , GO–Co 3 O 4 /60EG:40 W 13 , Cu–Al 2 O 3 /water 13 , Al 2 O 3 –TiO 2 /Syltherm 800 25 , Ag–ZnO/Syltherm 800, Ag–TiO 2 /Syltherm 800, and Ag–MgO/Syltherm 800 26 .…”

Section: Introductionmentioning

confidence: 99%

Thermal growth in solar water pump using Prandtl–Eyring hybrid nanofluid: a solar energy application

Jamshed

Nasir

Isa

et al. 2021

Sci Rep

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Nowadays, with the advantages of nanotechnology and solar radiation, the research of Solar Water Pump (SWP) production has become a trend. In this article, Prandtl–Eyring hybrid nanofluid (P-EHNF) is chosen as a working fluid in the SWP model for the production of SWP in a parabolic trough surface collector (PTSC) is investigated for the case of numerous viscous dissipation, heat radiations, heat source, and the entropy generation analysis. By using a well-established numerical scheme the group of equations in terms of energy and momentum have been handled that is called the Keller-box method. The velocity, temperature, and shear stress are briefly explained and displayed in tables and figures. Nusselt number and surface drag coefficient are also being taken into reflection for illustrating the numerical results. The first finding is the improvement in SWP production is generated by amplification in thermal radiation and thermal conductivity variables. A single nanofluid and hybrid nanofluid is very crucial to provide us the efficient heat energy sources. Further, the thermal efficiency of MoS2–Cu/EO than Cu–EO is between 3.3 and 4.4% The second finding is the addition of entropy is due to the increasing level of radiative flow, nanoparticles size, and Prandtl–Eyring variable.

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Section: Introductionmentioning

confidence: 99%

Thermal growth in solar water pump using Prandtl–Eyring hybrid nanofluid: a solar energy application

Jamshed

Nasir

Isa

et al. 2021

Sci Rep

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“…In early 2020s, a heat transfer characteristics and fluidity of HNFs in parabolic trough solar collector under turbulent flow were investigated by Ekiciler et al [15]. Silver (Ag), zinc oxide (ZnO), titanium dioxide (TiO 2 ), and magnesium oxide (MnO) NPs were chosen to prepare HNFs.…”

Section: Literature Reviewmentioning

confidence: 99%

Finite Element Based Comparative Analysis of Positive Streamers in Multi Dispersed Nanoparticle Based Transformer Oil

Bhatt

2021

Int. j. eng. technol. innov.

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The dispersion of dissimilar nanoparticles (NPs) in transformer oil (TO) has a major impact on fast propagating positive streamers. This work investigates the positive streamer dynamics in TO modified by dispersing both Fe3O4 and Al2O3 NPs at a homogenous concentration. The hydrodynamic drift diffusion model of positive streamer evolution and propagation are solved using the commercial software package COMSOL Multiphysics. The impact of multiple NPs (MNPs) has been analysed for streamer propagation, electric field intensity, electron density, and space charge density of modified TO. MNPs successfully reduce streamer propagation velocity by 50%, 17%, and 37.5% comparing to pure oil, Fe3O4 based nanodielectric fluids (NDFs), and Al2O3 based NDFs, respectively. The spatial distribution of electron density reveals the loss of electrons from the ionization region until the saturation of NPs. A comparative study demonstrates that MNPs significantly alter the streamer dynamics and augment the dielectric strength of TO compared to individual NPs.

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“…Moreover, the review of Kumar et al 11 covered the best part of the literature on the use of nanofluids to enhance the η T of PTSC. Many other scientists have examined the use of nanofluids as working fluid in FPSC and PTSC; they all agree on the positive effect of using nanofluids on the energy efficiency of these prevalent types of solar collectors 12‐16 . Jouybari et al 17 investigated nanofluid flow over a flat plate with a permeable material.…”

Section: Introductionmentioning

confidence: 99%

Computational single‐phase comparative study of a Williamson nanofluid in a parabolic trough solar collector via the Keller box method

2021

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Summary A solar thermal collector collects heat by absorbing sunlight and converting this incoming radiation into useful thermal energy. The parabolic trough solar sollector (PTSC) is widely installed in concentrated solar power technology with a temperature range of 325‐700 K. The thermodynamic efficiency of the PTSC can be intensified by using nanofluids owing to their enhanced thermophysical properties. In this paper, the two‐dimensional flow over a stretched sheet in PTSC under Williamson nanofluid effects is explored. With the help of useful transformations, the partial differential equations arising from boundary layer equations of the Williamson nanofluid model are changed into nonlinear ordinary differential equations. The Keller box numerical scheme is then used to find the solution of the resulting nonlinear ordinary differential equations. Two nanofluids, copper‐engine oil (Cu‐EO) and alumina‐engine oil (Al2O3‐EO) are considered to address the performance analysis of PTSC in this study. It is observed that the parameters of the porous media reduced the heat transfer rate but increased the velocity gradient. In order to examine the effect on various performance parameters of the device, the nanoparticle concentration is also varied. With the increase in the Reynolds and Brinkman numbers, the entropy is found to increase. The thermodynamic performance of the Cu‐EO nanofluid is remarkably better than that of the Al2O3‐EO nanofluid under the same conditions. The thermal efficiency of Cu‐EO over Al2O3‐EO is seen with a minimum of 1.5% and a maximum of 9.1%. The theoretical simulations documented here may be effective in improving solar thermal energy systems.

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Effect of hybrid nanofluid on heat transfer performance of parabolic trough solar collector receiver

Cited by 101 publications

References 50 publications

Thermal growth in solar water pump using Prandtl–Eyring hybrid nanofluid: a solar energy application

Thermal growth in solar water pump using Prandtl–Eyring hybrid nanofluid: a solar energy application

Finite Element Based Comparative Analysis of Positive Streamers in Multi Dispersed Nanoparticle Based Transformer Oil

Computational single‐phase comparative study of a Williamson nanofluid in a parabolic trough solar collector via the Keller box method

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