1. INTRODUCTION
Developing energy solicitations have encouraged the expansion of novel
archetypes for the utilization of renewable energies [1-20].
Nowadays, parabolic through solar collectors that are used in solar
power plants and thermic applications are investigated by several
authors for their increased thermo-hydraulic performance. Bi et al.
[21] analyzed the performance of a solar air conditioning system
based on the independent-developed PTSC. Their obtained results
illustrated that the solar air conditioning system with a three-phase
(3P) accumulator can steadily and unceasingly supply buildings cooling
for night and day. Fathabadi [22] presented a novel low-cost PTSC in
which a stainless steel 2-phase closed thermo siphon (TPCT) heat pipe
and condensation parts and evaporation composed were used for solar heat
imprisonment. Elakhdar et al. [23] studied a combined Organic
Rankine cycles for power generation and thermal system of ejector
refrigeration using a PTSC. The PTSC performance was assessed reliant to
the meteorological statistics and parameters of concentrator-related.
Heyhat et al. [24] investigated experimentally the influences of
employing metal foam, nanofluid and their combination on the heat
transfer characteristics of PTSC. They found that both metal foam and
nanofluid are respectable solar absorbers. Consequently, water based CuO
nanofluid at various nanoparticles volume fractions had been analyzed as
volumetric solar absorbers. Elashmawy and Alshammari [25] studied
atmospheric water harvesting from low humid regions utilization tubular
solar still powered by a PTSC. The projected expedient improved the
efficiency and productivity of the PTSC by 82 percent and 265 percent,
respectively. Thirunavukkarasu and Cheralathan [26] studied
experimentally energy and exergy efficiencies of a spiral tube receiver
for a PTSC. Their obtained data showed that the lower weight of their
novel case leads to low cost and had prospective to be used with PTSC
for process heating applications. Wu et al. [27] investigated the
effects of using dust accumulation on the cleanliness factor of a PTSC.
They proposed a physical model to guess the dust accumulation impact on
PTSC light reflectivity. Various physical parameters of the studied case
were analyzed, such as tilt angle, the incidence light angle,
diaphaneity and the particles size. They observed a remarkable
coincidence between the experimental results and the mathematical model.
Modi et al. [28] investigated effects of water mass on the
performance of spherical basin solar still combined with PTSC. Their
empirical results show that the distilled output upsurges by water mass
rise in the basin.
Liu and Huang [29] studied numerically different effects using
different linear thermal forcing models on convection heat transfer and
fluid flow in a rectangular shape finned cavity. Based on their obtained
results for all the studied models a major flow oscillation occurs on
the top side of the fin and using fins leads to more heat transfer. Seo
et al. [30] studied numerically and employing artificial neural
network modeling fluid flow and heat transfer characteristics on natural
convection heat transfer inside a rectangular enclosure equipped with a
sinusoidal cylinder. The impact of the parameters on the heat transfer
performance was quantitatively evaluated. According to their achieved
results, it is found that the cylinder average radius and the Rayleigh
number have a significant effect on the total heat transfer
characteristics at the enclosure walls and cylinder surface.
Razzaghpanah and Sarunac [31] investigated numerically 2D laminar
steady state fluid flow and natural convection heat transfer in molten
solar from a bundle of in-line circular heated cylinders absorbed salt.
A correlation set had been developed for the optimum and maximum
dimensionless volumetric densities heat transfer as Rayleigh number
functions. They found that configurations are more important in solar
storage and heating processes and also in applications of lost energy
recovery. Krakov and Nikiforov [32] studied numerically different
effects of the inner boundary shapes on thermomagnetic convection heat
transfer enhancement in an annulus between two horizontal cylinders.
They realized that the high gradient magnetic field influence affects
the inner cylinder on convective heat transfer significantly. Alam et
al. [33] studied numerically different corner attack angle and
radius effects on flow topology and heat transfer of cylinders. They
found that the boundary layers contribute significantly to heat
transfer. Also, they realized that the length of vortex formation is
contrariwise connected to forces and heat transfer. Vyas et al. [34]
studied experimentally and numerically various effects of blockage ratio
on heat transfer and fully developed fluid flow in the wake region
inside an adiabatic circular cylinder embedded in a channel. They found
that both numerical and experimental data are in good agreement.
Hadžiabdić et al. [35] studied numerically fluid flow and heat
transfer around a rotary oscillating cylinder at high flow velocities.
Their obtained results illustrated the heat transfer inside the cylinder
is considered by very high local rates.
The literature review elucidates that although the effect of using
nanofluid for solar collectors (flat plate and parabolic through ones)
has been assessed [36-55]; but, to the best of author’s knowledge
there is not any study which investigates thermal-hydraulic performances
of turbulent forced hybrid nanofluid flow and heat transfer inside a
parabolic through solar collector equipped with turbulators. The main
aim of present work is to simulate the geometry using
ANSYS-Fluent-Software and also investigate the effects of different
Reynolds numbers and geometrical parameters on thermal and hydraulic
characteristics of the studied parabolic through the solar collector to
achieve the maximum PEC value.