CFD modelling of different properties of nanofluids in header and riser tube of flat plate solar collector

Farhana, Kaniz; Kadirgama, K.; Noor, M. M.; Rahman, M. M.; Mahamude, Abu Shadate Faisal

doi:10.1088/1757-899x/469/1/012041

Cited by 15 publications

(9 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where a is the fractional parameter, k 1(hnf ) and k 2(hnf ) are the effective thermal conductivity and the elastic conductivity of hybrid nanofluid. Using equation (13) in equation (12) and making the result the respective result dimensionless by using the relations from equation 10:…”

Section: Mathematical Statement Of Physical Modelmentioning

confidence: 99%

“…Babar et al 12 gave a brief comparison between the nano and hybrid nanofluids and concluded that water-based nanofluids show the better performance for ethylene glycol-based nanofluids. Farhana et al 13 analyzed the flow of nano and hybrid nanofluid in tube of solar collector for three different designed models. Uysal et al 14 discussed the heat transfer due to conduction with entropy generation for a hybrid nanofluid flow through a minichannel and have been concluded that for a small addition of hybrid nanoparticle to pure water there is considerable increase in heat transfer coefficient and flux at boundary.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mathematical modeling of (Cu−Al2O3) water based Maxwell hybrid nanofluids with Caputo-Fabrizio fractional derivative

Ahmad

Imran

Nazar

2020

Advances in Mechanical Engineering

View full text Add to dashboard Cite

In this article, a free convection flow of [Formula: see text] hybrid Maxwell nanofluids through a channel formed by two infinite vertical plates have been studied. Together with the the energy balance and heat source, a fractional model of Maxwell fluid is considered. To develop an analytical exact solution for velocity field, only the Caputo-Fabrizio definition of non-integral derivative together with application of Laplace transform method has been used. Some graphical presentation and discussion are made to see the effects of hybrid nanofluids and non-dimensional parameters on velocity boundary layer. As a result, a dual behavior of velocity was exposed due to fractional parameter for large and small times. A comparison between two kind of non-Newtonian fluids has been made and found that Brinkman fluid is more viscous than Maxwell fluid. Also, by letting Brinkman and Maxwell parameters zero, they coincides and the results obtained for Newtonian fluid showed graphically. The obtained results are realistic from the fractional model as by adjusting the values of fractional parameter can be compared with some experimental data.

show abstract

Section: Mathematical Statement Of Physical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mathematical modeling of (Cu−Al2O3) water based Maxwell hybrid nanofluids with Caputo-Fabrizio fractional derivative

Ahmad

Imran

Nazar

2020

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…The study demonstrated improvement of conductivity in nanofluids, with nanoparticles, such as f-GNPs, SiO 2 , and ZnO, by increasing concentrations by 25.68 %, 11.49 %, and 15.44 %, respectively. Farhana et al [17] studied the effects of nanocellulose (CNC) nanofluids on improving flat plate solar collector efficiency. By using 0.5 % CNC and 0.5 % Al 2 O 3 nanofluids, the efficiency improved by 2.48 % and 8.46 %, respectively.…”

Section: Introductionmentioning

confidence: 99%

Assessing the efficacy of flat-plate solar collectors using nanofluids in the climatic context of Kirkuk city, Iraq

Hussein,

Mohammed Ali,

Ali

2024

Acta Polytech

View full text Add to dashboard Cite

Solar energy is a key renewable energy source. Research and development have focused on enhancing the heat transfer coefficient, heat gain, and practical efficiency of solar systems. The aim of this study is to evaluate the performance of a flat solar panel collector using a nanofluid under conditions in the city of Kirkuk/Iraq, 35° latitude and 45° longitude, in terms of practical calculation of thermal efficiency. The study included making two solar collectors, one traditional and the other improved using a nanofluid (CuO). The CuO/Water nanofluid was prepared with a volumetric concentration of 0.25 % by mechanical mixing and then ultrasonic mixing to homogenise the particles and eliminate the agglomerations that form inside the fluid. Practical testing was conducted for the two solar collectors, one using distilled water and the other using the nanofluid, during four months (January, February, March, and April) of the year 2023. The experiments revealed that the efficiency progressively improves from 9:00 a.m. to 1:00 p.m. This increase is attributed to solar radiation’s decreasing intensity post 12:00 p.m., while thermal storage and minimised thermal losses continue to contribute. After 2:00 p.m., the efficiency dwindles due to the declining solar radiation intensity. The practical efficiency of a 0.25 % nanofluid (CuO) attains its zenith at a mass flow rate of 0.015 ls−1. Higher mass flow rates enhance heat transfer within fluid-filled tubes. The collector efficiency at this flow rate ranges from 31.66 % in January to 44.44 % in April.

show abstract

“…Aman et al 16 examined the influence of volume fraction on the free convection flow of nanofluids by utilizing the fractional derivatives. A free convection viscous fluid flow with Titania as nanoparticles in sodium cellulose-based fluid with non-homogeneous and mechanical conditions was examined by Hussanan et al 17 To analyze and enhance the performance and output of solar collectors Farhana et al 18 utilized the nanofluids properties. AbdElazem et al 19 examined the influence of radiations on a stretching sheet with Ag and Cu-water nanofluids.…”

Section: Introductionmentioning

confidence: 99%

Transport properties of mixed convective nano-material flow considering the generalized fourier law and a vertical surface: Concept of caputo-time fractional derivative

Raza

Khan

Farid

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part A:

View full text Add to dashboard Cite

With improved characteristics and thermal stability, the nanoparticles show a significant interest in many engineering and industrial processes. The applications of nanomaterials include applications in solar energy systems, chemical reactors, heating and cooling processes and many bio-medical applications. With such motivations, this investigation aims to address the mixed convection flow of different nanoparticles due to inclined surface in presence of Newtonian heating and slip effects. Two types of nanoparticles like titanium dioxide and aluminum oxide with water base fluid are used to improve the heat transfer rate. The dimensionless governing partial differential equations for this fractional mathematical modal are accomplished by using Caputo-time fractional derivative and Fourier’s law of thermal conductivity. The generalized solution of energy and momentum equations is conquered by applying the Laplace transformation (LT) scheme. To illustrate some more physical insight of the problem and to develop the novelty of this article some special cases of velocity field are reflected whose physical clarification is well known in the literature. Furthermore, to investigate the physical implication of the under-deliberation problem, the graphical illustrations are performed by using math software MATHEMATICA. The interesting observations claimed from this investigation revealed that the interaction of thermal rate of change is more impressive for aluminium oxide. The temperature and velocity profiles are enhanced by varying the numerical value of the fractional constraint at large time scale.

show abstract

CFD modelling of different properties of nanofluids in header and riser tube of flat plate solar collector

Cited by 15 publications

References 27 publications

Mathematical modeling of (Cu−Al2O3) water based Maxwell hybrid nanofluids with Caputo-Fabrizio fractional derivative

Mathematical modeling of (Cu−Al2O3) water based Maxwell hybrid nanofluids with Caputo-Fabrizio fractional derivative

Assessing the efficacy of flat-plate solar collectors using nanofluids in the climatic context of Kirkuk city, Iraq

Transport properties of mixed convective nano-material flow considering the generalized fourier law and a vertical surface: Concept of caputo-time fractional derivative

Contact Info

Product

Resources

About