Journal ArticleDOI
Thermal conductivity of Al2O3/water nanofluids
TLDR
In this paper, the authors measured the thermal conductivity of very narrow Al2O3 nanoparticles with the size of 5nm suspended in water in a temperature range between 26 and 55°C.Abstract:
A considerable number of studies can be found on the thermal conductivity of nanofluids in which Al2O3 nanoparticles are used as additives. In the present study, the aim is to measure the thermal conductivity of very narrow Al2O3 nanoparticles with the size of 5 nm suspended in water. The thermal conductivity of nanofluids with concentrations up to 5 % is measured in a temperature range between 26 and 55 °C. Using the experimental data, a correlation is presented as a function of the temperature and volume fraction of nanoparticles. Finally, a sensitivity analysis is performed to assess the sensitivity of thermal conductivity of nanofluids to increase the particle loading at different temperatures. The sensitivity analysis reveals that at a given concentration, the sensitivity of thermal conductivity to particle loading increases when the temperature increases.read more
Citations
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Recent advances in modeling and simulation of nanofluid flows-Part I: Fundamentals and theory
Omid Mahian,Omid Mahian,Omid Mahian,Lioua Kolsi,Mohammad Amani,Patrice Estellé,Goodarz Ahmadi,Clement Kleinstreuer,Jeffrey S. Marshall,Majid Siavashi,Robert A. Taylor,Hamid Niazmand,Somchai Wongwises,Somchai Wongwises,Tasawar Hayat,Tasawar Hayat,Arun V. Kolanjiyil,Alibakhsh Kasaeian,Ioan Pop +18 more
TL;DR: A review of the latest developments in modeling of nanofluid flows and heat transfer with an emphasis on 3D simulations can be found in this paper, where the main models used to calculate the thermophysical properties of Nanofluids are reviewed.
Journal ArticleDOI
Experimental determination of thermal conductivity and dynamic viscosity of Ag–MgO/water hybrid nanofluid
TL;DR: In this article, the effect of nanoparticle volume fraction on thermal conductivity and dynamic viscosity of Ag-MgO/water hybrid nanofluid with the particle diameter of 40(mgO) and 25(Ag) nm was investigated.
Journal ArticleDOI
Thermal conductivity of Cu/TiO2–water/EG hybrid nanofluid: Experimental data and modeling using artificial neural network and correlation☆
Mohammd Hemmat Esfe,Somchai Wongwises,Ali Naderi,Amin Asadi,Mohammad Reza Safaei,Hadi Rostamian,Mahidzal Dahari,Arash Karimipour +7 more
TL;DR: In this article, two new correlations for predicting the thermal conductivity of studied hybrid nanofluids, in terms of solid concentration and temperature, are proposed that use an artificial neural network (ANN) and are based on experimental data.
Journal ArticleDOI
A review of recent advances in thermophysical properties at the nanoscale: From solid state to colloids
Lin Qiu,Lin Qiu,Ning Zhu,Yanhui Feng,Efstathios E. Michaelides,Gaweł Żyła,Dengwei Jing,Xinxin Zhang,Pamela M. Norris,Christos N. Markides,Omid Mahian +10 more
TL;DR: In this paper, a review of recent advances in the measurement and modeling of thermophysical properties at the nanoscale (from the solid state to colloids) is presented, including thermal conductivity, dynamic viscosity, specific heat capacity, and density.
Journal ArticleDOI
Viscosity of nanofluids: A review of recent experimental studies
Kazem Bashirnezhad,Shahab Bazri,Mohammad Reza Safaei,Marjan Goodarzi,Mahidzal Dahari,Omid Mahian,Ahmet Selim Dalkılıça,Somchai Wongwises +7 more
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.
References
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Journal ArticleDOI
Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles
Bock Choon Pak,Young I. Cho +1 more
TL;DR: In this article, the authors used a Brookfield rotating viscometer to measure the viscosities of the dispersed fluids with γ-alumina (Al2O3) and titanium dioxide (TiO2) particles at a 10% volume concentration.
Journal ArticleDOI
Thermal Conductivity of Heterogeneous Two-Component Systems
R. L. Hamilton,O. K. Crosser +1 more
Journal ArticleDOI
Measuring Thermal Conductivity of Fluids Containing Oxide Nanoparticles
TL;DR: In this paper, a transient hot-wire method was used to measure the thermal conductivity of a small amount of nanoparticles and the experimental results showed that these nanoparticles have substantially higher thermal conductivities than the same liquids without nanoparticles.
Journal ArticleDOI
Temperature dependence of thermal conductivity enhancement for nanofluids
TL;DR: In this article, the authors investigated the increase of thermal conductivity with temperature for nano fluids with water as base fluid and particles of Al 2 O 3 or CuO as suspension material.