Journal ArticleDOI
Anomalous thermal conductivity enhancement in nanotube suspensions
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TLDR
In this paper, the authors have produced nanotube-in-oil suspensions and measured their effective thermal conductivity, which is anomalously greater than theoretical predictions and is nonlinear with nanotubes loadings.Abstract:
We have produced nanotube-in-oil suspensions and measured their effective thermal conductivity. The measured thermal conductivity is anomalously greater than theoretical predictions and is nonlinear with nanotube loadings. The anomalous phenomena show the fundamental limits of conventional heat conduction models for solid/liquid suspensions. We have suggested physical concepts for understanding the anomalous thermal behavior of nanotube suspensions. In comparison with other nanostructured materials dispersed in fluids, the nanotubes provide the highest thermal conductivity enhancement, opening the door to a wide range of nanotube applications.read more
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Electromagnetic Flow of SWCNT/MWCNT Suspensions in Two Immiscible Water- and Engine-Oil-Based Newtonian Fluids through Porous Media
TL;DR: In this article , a steady-state laminar, electrically conducting immiscible fluids is considered, where the Newtonian fluid passes between two parallel vertical plates in a porous medium, and continuous conditions are used for velocity, temperature and also for shear pressure at the crossing area.
Journal ArticleDOI
Thermal transmittance of carbon nanotube networks: Guidelines for novel thermal storage systems and polymeric material of thermal interest
Matteo Fasano,Masoud Bozorg Bigdeli,Mohammad Rasool Vaziri Sereshk,Eliodoro Chiavazzo,Pietro Asinari +4 more
TL;DR: In this article, the role played by geometrical and chemical parameters on the overall thermal transmittance of large complex networks made up of carbon nanotubes (CNTs), that can be potentially added as fillers to (thermally) low-conductive materials for enhancing the transport properties.
Journal ArticleDOI
Development of bubble absorption refrigeration technology: A review
Xi Wu,Shiming Xu,Mengnan Jiang +2 more
TL;DR: In this paper, the development of bubble absorption refrigeration technologies is discussed from the aspects of driving energies, performance enhancement and application extension, and methods of enhancing bubble absorption performance were researched, and also the influence mechanisms of these physical and chemical methods were explained.
Journal ArticleDOI
Numerical study of 3D rotating hybrid SWCNT–MWCNT flow over a convectively heated stretching surface with heat generation/absorption
TL;DR: In this paper, the authors investigated the flow and heat transfer of rotating hybrid nanofluid in two directions over a convectively heated stretching surface and the impact of heat generation/absorption.
Journal ArticleDOI
Experimental investigation of thermal conductivity and specific heat of nanoparticles mixed cutting fluids
Rabesh Kumar Singh,Anuj Kumar Sharma,Amit Rai Dixit,Amit Rai Dixit,Amitava Mandal,Amitava Mandal,Arun Kumar Tiwari,Arun Kumar Tiwari +7 more
TL;DR: In this paper, different nano fluids are prepared by suspension of Titanium dioxide (TiO2), Siliconoxide (SiO2) and Aluminumoxide (Al2O3) nano particles in vegetable oil water mulsion at room temperature.
References
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Journal ArticleDOI
Helical microtubules of graphitic carbon
TL;DR: Iijima et al. as mentioned in this paper reported the preparation of a new type of finite carbon structure consisting of needle-like tubes, which were produced using an arc-discharge evaporation method similar to that used for fullerene synthesis.
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Physical properties of carbon nanotubes
TL;DR: In this paper, an introductory textbook for graduate students and researchers from various fields of science who wish to learn about carbon nanotubes is presented, focusing on the basic principles behind the physical properties and giving the background necessary to understand the recent developments.
Journal ArticleDOI
Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles
TL;DR: In this paper, it was shown that a "nanofluid" consisting of copper nanometer-sized particles dispersed in ethylene glycol has a much higher effective thermal conductivity than either pure or pure glycol or even polyethylene glycol containing the same volume fraction of dispersed oxide nanoparticles.
Journal ArticleDOI
Thermal Conductivity of Heterogeneous Two-Component Systems
R. L. Hamilton,O. K. Crosser +1 more
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