Showing papers in "International Communications in Heat and Mass Transfer in 2016"

TL;DR: A comprehensive literature on synthesis of hybrid nanoparticles, hybrid nanofluid and thermophysical properties of hybrid nano-fluids has been compiled and reviewed in this article, where the challenges and future trends in the application of hybrid Nanofluids in heat transfer applications are discussed.

TL;DR: In this paper, an experimental study on the effects of temperature and concentration on the thermal conductivity of f-MWCNTs-Fe3O4/EG hybrid nanofluid is presented.

TL;DR: In this article, the authors made an attempt to cover the latest experimental studies performed on the viscosity of nanofluids and found that the real effects of volume fraction, temperature, particle size, and shape on the viscous properties of nanoparticles can be determined through experiments.

TL;DR: In this paper, the thermal conductivity of Fe 3 O 4 magnetic nanofluids has been investigated experimentally by employing a KD2 Pro thermal properties analyser under temperatures ranging from 20°C to 55°C.

TL;DR: In this article, a neural network with one hidden layer and four neurons has been used to estimate the viscosity of the aqueous nanofluid of TiO2 using experimental data.

TL;DR: In this paper, the effects of temperature and solid volume fraction on rheological behaviors of MWCNTs/SiO 2 -SAE40 hybrid nano-lubricants were examined.

TL;DR: In this article, the physicochemical properties of fabricated graphene oxide were characterized using X-ray diffraction analysis (XRD), a scanning electron microscope (SEM), and UV-Vis spectrophotometry.

TL;DR: In this article, the authors discuss the latest developments and advancement of a solar water heater based on the three basic components that may affect the thermal performance of the system, including solar collectors, storage tanks and heat transfer fluids.

TL;DR: In this article, Nitrogen-doped graphene (NDG) nanofluids are prepared using a two-step method in an aqueous solution of 0.025-wt.% Triton X-100 as a surfactant with various nanosheets at several concentrations.

TL;DR: In this article, the authors investigated the dynamic viscosity of MWCNT/ZnO-engine oil hybrid nanofluid in different temperatures ranging from 5°C to 55°C and solid concentrations ranging from, 0.125% to 1%.

TL;DR: It can be found from comparisons that the optimal artificial neural network model is more accurate compared to empirical correlation.

TL;DR: In this article, a magnetic nanocomposite with magnetite (Fe 3 O 4 ) nanoparticles has been synthesized successfully by in-situ and chemical reduction of Fe 3+ and Fe 2+ cations on the acid treated-ND surface by using sodium hydroxide as a reducing agent.

TL;DR: In this paper, a new synthesis method has been introduced for the decoration of platinum (Pt) on the functionalized graphene nanoplatelet (GNP) and also highlighted the preparation method of nanofluids.

TL;DR: In this paper, the dynamic viscosity of single-wall carbon nanotubes (SWCNTs) in ethylene glycol (EG) at temperatures ranging from 30°C to 60°C for various suspensions at solid volume fractions of 0.1% and at all considered temperatures.

TL;DR: The results indicate that artificial neural networks can precisely estimate the experimental data of thermal conductivity of Al 2 O 3 /water (40%)–ethylene glycol (60%) nanofluids.

TL;DR: In this paper, the performance of ethylene glycol and water-based TiO 2 nanofluids as an automobile radiator coolant is determined experimentally, and the results of the investigation are presented graphically in terms of non-dimensional heat transfer coefficient as a function of volume concentration, temperature and flow rate.

TL;DR: In this paper, the dynamic viscosity of alumina-engine oil nanofluid in different solid volume fractions and temperatures was experimentally investigated, and new correlations for predicting the dynamic viscous properties of nano-drone at different temperatures were proposed.

TL;DR: In this article, an optimal artificial neural network was designed to predict the relative viscosity of multi-walled carbon nanotubes/water nanofluid, which is an imperative parameter for calculating the required pumping power and convective heat transfer.

TL;DR: In this article, the dynamic viscosity of MWCNT/MgO (20-80) -SAE50 hybrid nano-lubricant was investigated in solid concentrations ranging from 0.25% to 2% and temperatures ranging from 25°C to 50°C.

TL;DR: In this paper, a 5-input ANN model was proposed for the prediction of the thermal conductivity ratio of nanofluids to the base fluid (knf/kf).

TL;DR: In this article, a single-step method was used to study the natural convection of Al 2 O 3 -water nanofluids (formulated with single step method) in detail for volume fractions of 0, 0.05, 0., 0.4 and 0.6% in a rectangular cavity, heated differentially on two opposite vertical walls.

TL;DR: In this article, the effect of Fe2O3 nanoparticles on the thermal conductivity of base fluids like ethylene glycol and water was studied in a shell and tube heat exchanger under laminar to turbulent flow condition.

TL;DR: In this paper, the authors provided an overall analysis about nanofluids flowing through microchannel heat sinks Al 2 O 3 and TiO 2 nano-fluids based on deionized water with particle volume fractions of 0, 01, 05, 10% were prepared by the two-step dispersion method by adding nonionic surfactant polyvinylpyrrolidone (PVP) to avoid particle aggregation and enhance stability.

TL;DR: In this paper, an accurate ANN model and new correlation were developed to predict thermal conductivity of functionalized carbon nanotubes (MWNT-10nm in diameter)-water nanofluid based on experimental data.

TL;DR: In this paper, an experimental investigation on the pool boiling heat transfer to zirconium oxide nano-fluids was carried out, where the obtained nano-powders were then dispersed in water-ethylene glycol mixture 50:50 as a base fluid at volumetric particle concentrations of 0.025%, 0.05, 0.075, and 0.1%.

TL;DR: In this paper, the effect of external magnetic field on nanofluid properties and fluid flow was investigated, which is a key issue that influenced both the nanofluid properties and control of fluid flow for application.

TL;DR: In this article, an experimental investigation on the viscosity of water-based Fe 3 O 4 nanofluid under different magnetic fields was conducted by improving the test region of SV-10 viscometer.

TL;DR: In this article, a comprehensive characterization of viscosity, thermal conductivity, surface tension and pH of TiO 2 -water nanofluid is carried out to investigate the effects of both temperature and solid volume fraction on these thermo-physical properties.

TL;DR: In this paper, the authors investigated the thermal conductivity and viscosity of TiO 2 -ethylene glycol nanofluid with a nominal diameter of 5-nm at different volume concentrations (0-7%) at room temperature.

TL;DR: In this paper, a new model for density of nanofluids, which includes nanolayer, was developed, based on the experimental data, which was also found that the amount of the void in the nanolayers is more sensitive to nanoparticle size and not to base fluids or nanoparticles material.