Effects of climate variables and nanofluid-based cooling on the efficiency of a liquid spectrum filter-based concentrated photovoltaic thermal system

Journal of Thermal Analysis and Calorimetry, Год журнала: 2024, Номер 149(5), С. 2273 - 2291

Опубликована: Янв. 21, 2024

Язык: Английский

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Comparative characterization of entropy and heat transfer in carbon-based magnetohydrodynamic Cross nanofluids flowing through PTSCs: advancing thermal applications for solar-powered aircraft

International Journal of Modelling and Simulation, Год журнала: 2024, Номер unknown, С. 1 - 26

Опубликована: Янв. 19, 2024

The integration of solar energy into aero-technology has emerged as a pivotal solution to meet the escalating demands contemporary societies. This study explores potential power in aerospace, aiming reduce carbon dioxide emissions, diminish reliance on environmentally harmful sources, and enhance overall industry efficiency. investigation focuses using parabolic trough collectors (PTSCs) embedded aircraft. Particularly, delves flow thermal aspects ethylene glycol magnetohydrodynamic (MHD) Cross nanofluids, combination with three distinct carbon-based nanoparticles – namely graphene, multi-walled nanotubes (MWCNTs), single-walled Carbon NanoTubes (SWCNTs) within PTSC, which are situated various sections Evaluating heat efficiency transfer involves considering physical phenomena. results reveal significant enhancements, observed nanofluids incorporating MWCNTs, SWCNTs, where we demonstrate relative increases maximum performance by 35.1009%, 49.9765%, 67.6678%, respectively. Additionally, absolute value skin friction coefficient showed respective 65.2767%, 58.31438%, 66.4392%. Furthermore, exhibited 58.3686%, 51.3771%, 43.0085%.

Язык: Английский

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Thermal analysis of heat transport in a slip flow of ternary hybrid nanofluid with suction upon a stretching/shrinking sheet

Case Studies in Thermal Engineering, Год журнала: 2024, Номер 54, С. 103965 - 103965

Опубликована: Янв. 23, 2024

Understanding heat transfer in slip flow scenarios involving a stretching or shrinking sheet has immediate applications numerous fields, including materials processing, production, and temperature management systems. This information supports the development of novel methods Therefore present study focuses on stagnant point discusses dynamics thermal characteristics ternary hybrid nanofluids with application Tiwari Das nanofluids. It is assumed that are stretching/shrinking sheet. The slipping effects suction boundary conditions implemented. simulation will be performed using finite element method software package COMSOL Multiphysics 6.0. system ordinary differential equations (ODEs) obtained through similarity transformation solved numerically to obtain results. average velocity, profiles, Nusselt number patterns non-dimensional parameters also analyzed. These include parameter, ranging from −1 0.5, parameter both 0 2. under investigation consist combination TiO2, Silver-Ag, ZnO particles base fluid (water). volume fraction these tested 0.03 0.3. was found when there no effects, decreases for case increases case. concluded effect, profile

Язык: Английский

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Electroosmotic and Gyrotactic Microorganisms Effects on MHD Al2O3-Cu/Blood Hybrid Nanofluid Flow through Multi-Stenosed Bifurcated Artery

Frontiers in Bioscience-Landmark, Год журнала: 2024, Номер 29(3)

Опубликована: Март 19, 2024

Background: The purpose of this study is to investigate the electroosmotic flow a hybrid nanofluid (Al2O3-Cu/Blood) with gyrotactic microorganisms through bifurcated artery mild stenosis in both parent and daughter arteries. subjected uniform magnetic field, viscous dissipation, heat source. Methods: governing equations undergo non-dimensional transformation coordinate conversion regularize irregular boundaries, then solve resulting system using Crank-Nicolson method. Results: In sections (parent artery), wall shear stress (WSS) profile decreases increasing stenotic depth. Nusselt increases an increase source parameter. Conclusions: present endeavour can be beneficial for designing better biomedical devices gaining insight into hemodynamic therapeutic applications sciences.

Язык: Английский

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Insight into the Hamilton and Crosser model for ternary hybrid nanofluid flow over a Riga wedge with heterogeneous catalytic reaction

The European Physical Journal Special Topics, Год журнала: 2024, Номер unknown

Опубликована: Сен. 16, 2024

Язык: Английский

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Response surface methodology on MHD stagnation-point flow of ternary hybrid nanofluid over a permeable radially shrinking disk

Numerical Heat Transfer Part A Applications, Год журнала: 2024, Номер unknown, С. 1 - 29

Опубликована: Фев. 18, 2024

The numerical and statistical investigations of Al2O3-TiO2-Cu/water ternary hybrid nanofluid in MHD stagnation-point flow over a permeable radially shrinking disk are conducted the current study. Thermal radiation convective boundary condition also considered. investigation governing equations conditions is carried out using bvp4c solver Matlab. In this study, wall shear stress produced by 31.89% 22.65% higher than nanofluid, respectively. At same time, heat transfer rate about 28.39% 25.46% addition, increment suction magnetic parameters raises local skin friction coefficient Nusselt number. Meanwhile, augmentation thermal parameter Biot number improves temperature profile With desirability 99.75%, maximized at 0.938137 when Rd=0.7, Bi=0.7, Ec=0.003, M=0.5.

Язык: Английский

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Pulsatile flow of EMHD non-Newtonian nano-blood through an inclined tapered porous artery with combination of stenosis and aneurysm under body acceleration and slip effects

Numerical Heat Transfer Part A Applications, Год журнала: 2024, Номер unknown, С. 1 - 29

Опубликована: Фев. 27, 2024

Research on blood flow in diseased arteries has become a priority recent years. Stenosis/aneurysm is the most common arterial diseases. This work investigates mixed effect of electric and magnetic fields unsteady, two-dimensional, laminar, non-Newtonian pulsatile an axisymmetrically inclined tapered porous artery with stenosis aneurysm containing gold nanoparticles, subjected to body acceleration slip effect. Thermal radiation heat sources are also included. To immobilize vessel wall, we use radial coordinate transformation. The nonlinear partial differential equations governing present problem, together prescribed boundary conditions, solved using explicit finite-difference scheme. current analysis could help understand improvement mass distribution transfer vessels, which might be useful for drug delivery therapy aneurysm.

Язык: Английский

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Entropy generation analysis of a ternary hybrid nanofluid (Au-CuO-GO/blood) containing gyrotactic microorganisms in bifurcated artery

International Journal of Numerical Methods for Heat &amp Fluid Flow, Год журнала: 2024, Номер 34(2), С. 980 - 1020

Опубликована: Янв. 8, 2024

Purpose The purpose of this paper is to study haemodynamic flow characteristics and entropy analysis in a bifurcated artery system subjected stenosis, magnetohydrodynamic (MHD) aneurysm conditions. findings offer significant insights into the intricate interplay encompassing electro-osmosis, MHD flow, microorganisms, Joule heating ternary hybrid nanofluid. Design/methodology/approach governing equations are first non-dimensionalised, subsequently, coordinate transformation used regularise irregular boundaries. discretisation accomplished by using Crank–Nicolson scheme. Furthermore, tri-diagonal matrix algorithm applied solve resulting arising from discretisation. Findings investigation reveals that velocity profile experiences enhancement with an increase Debye–Hückel parameter, whereas magnetic field parameter exhibits opposite effect, reducing profile. A comparative demonstrates distribution Au-CuO nanofluid Au-CuO-GO results indicate notable for compared nanofluids. Moreover, Brinkmann number augmentation generation. Originality/value This investigates scheme model blood presence (Au-CuO-GO/blood) within arterial domain. shed light on complex interactions involving aneurysms, decrease wall shear stress (WSS) increasing stenosis size. effects observed influence distribution, as declining nature Hartmann number. In addition, generation increases research contributes understanding fluid dynamics heat transfer mechanisms arteries, providing valuable diagnosing treating cardiovascular diseases.

Язык: Английский

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Neural intelligent approach for heat transfer applications of trihybrid cross bio-nanofluid over wedge geometry

Modern Physics Letters B, Год журнала: 2024, Номер unknown

Опубликована: Июнь 28, 2024

Significance: Heat transport in the blood within a wedge-shaped artery is significant biomedical engineering field like develop therapeutic strategies, drug delivery to specific regions of artery, vicinity narrowed or blocked arteries and catheter-based treatments such as angioplasty thermal ablation. Motive: This study investigates heat analysis trihybrid nanofluid (blood) over with mathematical model Cross fluid. incorporates three nanoparticles, graphene oxide (GO), titanium dioxide (TiO 2 ), aluminum (Al O 3 ) base fluid blood. The chosen due its relevance applications it reflects nature flow real vascular structures. scrutinized through radiations rate inspected inclined magnetic field. Methodology: bvp4c Levenberg–Marquardt Neural Network (LM-NN) supervised neural scheme used predict numerical outcome this study. Findings: Incorporation nanoparticles made rapid artery. Velocity decreased high Weissenberg number force. temperature increases positive non-uniform source/sink parameters decreases negative parameters.

Язык: Английский

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Entropy-driven optimization of radiative Jeffrey tetrahybrid nanofluid flow through a stenosed bifurcated artery with Hall effects

Physics of Fluids, Год журнала: 2023, Номер 35(12)

Опубликована: Дек. 1, 2023

Atherosclerosis, which causes the artery walls to thicken, lumen narrow, and wall thin in some places, is characterized by plaque accumulation arteries. These blood flow modifications can cause aneurysms heart attacks if left unattended. Most of arteries cardiovascular system are branched; therefore, a parent (main artery) with two daughter (branched arteries) considered present analysis. To examine impact various nanoparticle combinations on flow, four distinct nanoparticles, namely, gold (Au), graphene oxide (GO), copper (Cu), tantalum (Ta), were injected into generate Au–GO–Cu–Ta/blood tetrahybrid nanofluid. In small diameters, behavior regarded as non-Newtonian; governed Jeffrey fluid It has been investigated how Hall effects, Joule heating, radiation, viscous dissipation affect through an that overlapping stenosis branches bell-shaped main artery. The approximation mild utilized simplify non-dimensionalize governing equations. Crank–Nicolson finite-difference scheme used MATLAB solve resulting results for velocity, temperature, shear stress, rate, heat transfer rate represented graphically. Furthermore, entropy optimization performed specified problem. Enhancement velocity half bifurcation angle (η) be observed from contours. nanofluid increases increase parameter (λ1*) shape nanoparticles (n) well. Introducing bloodstream improve targeted drug delivery, allowing more precise treatment at cellular level. addition, tunable properties offer possibilities enhanced therapeutic diagnostic treatments variety medical disorders.

Язык: Английский

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