
 The primary heat source from the sunlight is solar energy (SE), which is used in photovoltaic (PV) panels, solar power plates, PV, streetlights, and solar-based hybrid nanocomposites. Currently, research is focused on analyzing and improving the efficiency of SE, particularly for powering aircraft, by combining solar power with nanotechnology advancements. As such, this study focuses on examining concentrated solar power and proposes a method to improve the performance of solar airplanes by employing nanotechnology. Furthermore, the work is based on the investigation of the flow rate, thermal distribution, and entropy generation of the magnetized tangent hyperbolic hybrid nanofluid (HNF) along the interior parabolic solar trough collector of an aircraft wing. This work utilizes similarity variables to simplify the partial derivative model into ordinary differential equations. These equations are then solved using the Galerkin weighted residual approach with the help of MATHEMATICA 11.3 software. From the obtained outcomes, it is reflected that the HNFs have high thermal conductivity than the NF. Intensification of Weissenberg number improves the performance of airplane wings subjected to heat transmission. Therefore, this research contributes to improved thermal management in advanced nanotechnology and solar aircraft.

Thermal transport energy performance on tangent hyperbolic hybrid nanofluids and their implementation in concentrated solar aircraft wings

This paper was written to demonstrate the value of using nanofluids for
 cooling high-power transformers while also providing current techniques for
 business and academia. A numerical analysis of the improvement caused by the
 cooling of a high-voltage transformer using nanofluids has been done. A tank
 with a temperature source inside and a charge of mineral oil-barium titanate
 nanoparticles is used to study natural convection. This study investigates
 the effects of variables on the thermal efficiency of the tank, including
 the thermal Rayleigh number and volume fraction. The results show that
 quenching varies with low and high Rayleigh thermal numbers and depends on
 the volume percentage of used nanoparticles. The effects were illustrated in
 thermal transfer rate representations as functions of the thermal Rayleigh
 number (Rat = 103 and 106) and the solid volume particle from the
 nanoparticles (0 ? ? < 10%). The findings showed that improving the solid
 volume particle of the nanoparticles by 10% causes the fluid being utilized
 to become more effectively conductive, which improves the rate of heat
 transfer by roughly 10% when compared to the case of the base fluid.

Evaluation of thermal conductivity using nanofluids to improve the cooling of high voltage transformers

This study investigated an aluminium oxide nanofluid water-based tube heat
 exchanger fitted with a corrugated copper tube under laminar flow
 conditions. This study is carried out to observe the heat transfer rate
 within the heat exchanger. The effect of nanoparticle concentrations, the
 flow rate of the working fluid, and the corrugated tube pitch on the heat
 exchanger efficiency were analysed. The results show that when Al2O3 water
 nanofluids are sandwiched between corrugated copper tubes, the heat transfer
 rate is significantly enhanced compared to the smooth tubes. Nanofluids of
 aluminium oxide were prepared with concentrations of 0.25, 0.5%, and 1% in
 deionised water. Corrugated tubes with 25 mm, 20 mm, and 18 mm pitches were
 fabricated for this investigation. The deionised water and aluminium oxide
 nanofluid flow rates were maintained at 0.1m3/h, 0.15m3/h and 0.2m3/h,
 respectively. Results showed that aluminium oxide nanofluids improved the
 heat transfer rate related to water-based fluids. The highest heat transfer
 occurred in the 18-mm pitch corrugated copper tube in which 1% nanofluid
 volume concentration was used as the heat transfer medium. It is observed
 that the heat exchanger containing corrugated copper tubes with pitch 17.88
 mm having 0.98 vol. % of Al2O3 nanofluids, flowing at 0.198 m3/h, enhances
 the heat transfer rate between the working fluids.

TLBO algorithm-based optimal heat transfer parameters prediction of Al2O3 water nanofluids in variable pitch corrugated tube heat exchanger

This study presents the mathematical and statistical findings towards the
 model of steady, laminar, natural convection hybrid alumina-copper/water
 nanofluid flow on a vertical permeable hot plate with a thermal radiation
 effect. The governing partial differential equations of the model are
 simplified to a system of ordinary differential equations by using the
 sophisticated similarity transformation. For mathematical analysis, a finite
 difference method is used via the numerical solver known as bvp4c (Matlab)
 while for statistical analysis, a response surface methodology (RSM) is
 adapted via Minitab. It is found that the stronger thermal radiation effect
 improves the heat transmission rate of the hybrid nanofluid under the
 presence of suction and natural convection. This finding has been
 statistically proven through the optimization technique via RSM with 99.97%
 desirability.

Numerical and statistical analyses of a natural convection radiative hybrid nanofluid flow on a vertical permeable plate

The thermal properties of radiating water-based hybrid nanofluid with
 nanoparticles Cu-Al2O3 over an inclined shrinking plane are investigated.
 The governing equations in this model are transformed into similarity
 equations. Then, the boundary value problem solver (bvp4c) in Matlab
 software is used numerically to solve these similarity equations. It has
 been discovered that utilizing Matlab software; the dual numerical solution
 occurs for certain values of the nanoparticle volume fraction and the
 suction parameter. Therefore, the skin friction coefficient and Nusselt
 number increase due to the effect of radiation and suction parameter. As a
 result of the findings, we were able to identify that the increasing
 nanoparticle volume fraction and the suction parameter cause the reliable
 numerical findings for velocity profile to enhance. When the first solution
 of suction parameter is increased, the skin friction coefficient and the
 local Nusselt number increase. Meanwhile, in the presence of the radiation
 parameter, the temperature of both solutions rises.

/pdf/the-thermal-properties-of-water-based-hybrid-nanofluid-cu-22qtzaj9.pdf

The thermal properties of water-based hybrid nanofluid (Cu-Al2O3) beyond an inclined plane

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The thermal properties of water-based hybrid nanofluid (Cu-Al2O3) beyond an inclined plane