Journal ArticleDOI
Natural convection of nano-fluids
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TLDR
In this article, an apparently paradoxical behaviour of heat transfer deterioration was observed in nano-fluid and its dependence on parameters such as particle concentration, material of the particles and geometry of the containing cavity have been investigated.Abstract:
Fluids with nano size solid particles suspended in them have been given the name nano-fluid which in recent studies have shown tremendous promise as heat transfer fluids. However, before suggesting such fluids for applications a thorough knowledge of physical mechanism of heat transfer in such fluids is wanted. The present study deals with one such aspect of natural convection of nano fluids inside horizontal cylinder heated from one end and cooled from the other. An apparently paradoxical behaviour of heat transfer deterioration was observed in the experimental study. Nature of this deterioration and its dependence on parameters such as particle concentration, material of the particles and geometry of the containing cavity have been investigated. The fluid shows characters distinct from that of common slurries.read more
Citations
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Journal ArticleDOI
Heat transfer characteristics of nanofluids: a review
Xiang-Qi Wang,Arun S. Mujumdar +1 more
TL;DR: A review on fluid flow and heat transfer characteristics of nanofluids in forced and free convection flows is presented in this article, where the authors identify opportunities for future research.
Journal ArticleDOI
Numerical study of natural convection in partially heated rectangular enclosures filled with nanofluids
Hakan F. Öztop,Eiyad Abu-Nada +1 more
TL;DR: In this paper, the authors used the finite volume technique to solve the governing equations of heat transfer and fluid flow due to buoyancy forces in a partially heated enclosure using nanofluids.
Journal ArticleDOI
Heat Transfer in Nanofluids—A Review
TL;DR: In this paper, the authors present an exhaustive review of the literature in this area and suggest a direction for future developments, including heat transfer, material science, physics, chemical engineering and synthetic chemistry.
Journal ArticleDOI
Review and Comparison of Nanofluid Thermal Conductivity and Heat Transfer Enhancements
TL;DR: In this article, the authors provide a detailed literature review and an assessment of results of the research and development work forming the current status of nanofluid technology for heat transfer applications.
Journal ArticleDOI
Empirical correlating equations for predicting the effective thermal conductivity and dynamic viscosity of nanofluids
TL;DR: In this article, two empirical correlations for predicting the effective thermal conductivity and dynamic viscosity of nanofluids, based on a high number of experimental data available in the literature, are proposed and discussed.
References
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Journal ArticleDOI
Natural convection of water-fine particle suspension in a rectangular cell
Masashi Okada,Tetsuya Suzuki +1 more
TL;DR: In this article, a water fine particle suspension with a uniform initial temperature and concentration in a rectangular cell is heated from a central part of the horizontal bottom wall and temperatures at both the vertical side walls of the cell are kept at the initial temperature.
Journal ArticleDOI
Natural convection of water-fine particle suspension in a rectangular vessel heated and cooled from opposing vertical walls (classification of the natural convection in the case of suspension with a narrow-size distribution)
TL;DR: In this paper, a SiO2 particle suspension with a narrow-size distribution (mean diameter of 2.97 μm, standard deviation of 0.03 μm ) was heated in a rectangular vessel from a vertical wall and cooled from the opposing vertical wall.
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