... , and CuO nanofluid (NF) flow of 50 ppm concentration of each through the inserted brazed helix tube (BHT). The input parameters such as flowrates, helix tube diameters, and nanofluid types are varied throughout the experiments to evaluate their effect on output performance parameters i.e., Nusselt number...

.... The current study highlights the transient numerical analysis of wickless heat pipes (thermosyphons) for the thermal management of electronic devices. The thermal performance of the thermosyphon is analyzed using both copper oxide (CuO) and aluminum oxide (Al 2 O 3 ) nanofluids with their concentrations at 1...

...Santinath Bairagi; Ranendra Roy; Bijan Kumar Mandal In this study, an attempt has been made to carry out a numerical investigation using water-based Al 2 O 3 nanofluid, flowing through a circular tube under constant inlet temperature and constant heat flux conditions in the laminar flow regime...

...Nadia Bouguetaia; Nadir Bellel; Abdelhak Lekbir In this paper, the performances of a novel hybrid solar system using the Al 2 O 3 nanofluid and pure water as a heat transfer fluid to operate a single-effect lithium bromide absorption chiller are investigated. In which the performance...

...Rahul Ghimire; Pankaj Mehta; Nischal Aryal; Daya Ram Sah; Surya Prasad Adhikari This study analyzed the heat transfer potential of nanofluids (suspension of Al 2 O 3 nanoparticles in 60:40 mixtures of ethylene glycol and water by volume) compared to the base fluid by modeling the flow in both...

.... The metrological conditions are collected from the metro central corresponding to the region of Gabes located in southern Tunisia. To further enhance the performance of solar collectors, different cooling fluids were tested including nanofluids. After testing the thermal behavior of different fluids, MgO...

... nanofluids. The effect of porosity (γ = 0.32–0.60), inlet velocity (w in = 0.5–1.5 m/s), and nanoparticle concentration ( ϕ =0.0025 – 0.05) on thermal-hydraulic performance is systematically examined. The result shows a significant temperature increase (40 °C) of the coolant in the porous zone. The pressure...

... characteristics of a turbulent nanofluid flow in a pipe. Water and Al 2 O 3 mixture is used as the nanofluid. Utilizing fluent software, numerical computations were performed with volume fraction ranging between 0.3% and 5%, particle diameter ranging between 20 and 140 nm, and Reynolds number ranging between 7000...

...Hussein M. Maghrabie; Hamouda M. Mousa Recent progress in nanotechnology has led to a revolution in the automotive cooling system. In the present work, enhancement of car radiator thermal performance was investigated using different nanofluids namely SiO 2 /water and ZnO/water nanofluids as cooling...

... and rhombus fins. Three-dimensional (3D) computational domain has been simulated using two types of cooling medium, i.e., water and Al 2 O 3 –H 2 O nanofluid. A comprehensive comparative analysis has been presented considering the coolants and pin fin profiles as variable parameters. Two operating variables...

...Sangram Kumar Samal; Manoj Kumar Moharana Three-dimensional numerical study is presented in this work that deals with thermo-hydrodynamic and entropy generation analysis of water-based nanofluids in recharging microchannel (RMC). Four different water-based nanofluids (Al 2 O 3 , CuO, SiO 2...

...H. Hinnawi; A. Al-abadi; N. S. Al-Huniti This study is concerned with studying the performance of SiO 2 –water nanofluid flow through a three-dimensional straight mini-channel with different values of aspect ratio (AR) of (0.5, 1.0, and 1.6) and a fixed hydraulic diameter under a uniform heat flux...

...Nilankush Acharya The present investigation deals with the flow dynamics and heat transport of the nanofluid flow over a rotating disk. The flow is considered to be laminar and steady. Active–passive controls of tiny nanoparticles influenced by the Brownian motion and thermophoretic migration...

...Chuo-Jeng Huang; Kuo-Ann Yih This study used numerical analysis to investigate the effects of nonlinear radiation and variable viscosity on free convection of a power-law nanofluid over a vertical truncated cone in porous media with Rosseland diffusion approximation considering zero nanoparticles...

...Shashank Ranjan Chaurasia; R. M. Sarviya The experimental analysis is arranged to evaluate the thermal hydraulic performance on nanofluid flow in helical screw insert with tube at a number of strips and different twist ratios in laminar flow regime. The single strip (SS) helical screw inserts...

...Mustapha Faraji; El Mehdi Berra This paper reported the mathematical modeling and numerical simulation of natural convection flow of Cu/water nanofluid in a square enclosure using the lattice Boltzmann method (LBM). The cavity is heated from below by heat source and cooled by the top wall...

...Yousef Alhendal; Abdalla Gomaa; Mahmoud Abdelmagied The thermofluid characteristics of Al 2 O 3 –water nanofluid in the annulus of double-helical coiled tubes were experimentally and numerically carried out. The purpose was to investigate the effect of combined enhancement techniques of nanofluid...

...Nalla Ramu; P. S. Ghoshdastidar This paper presents a computational study of mixed convection cooling of four in-line electronic chips by alumina-deionized (DI) water nanofluid. The chips are flush-mounted in the substrate of one wall of a vertical rectangular channel. The working fluid enters from...

...Marneni Narahari; S. Suresh Kumar Raju; Rajashekhar Pendyala; Suhaib Umer Ilyas A numerical investigation on the transient-free convection flow of the multiphase nanofluid past a vertical cylinder, which has a power-law variation surface temperature along with the height, is presented. The problem...

... HERMAL S CIENCE AND E NGINEERING A PPLICATIONS . Manuscript received December 21, 2018; final manuscript received June 22, 2019; published online July 31, 2019. Assoc. Editor: Ali J. Chamkha. 21 12 2018 22 06 2019 nanoparticle fluid nanofluid heat transfer enhancement thermal...