Journal ArticleDOI
Anomalous thermal conductivity enhancement in nanotube suspensions
Reads0
Chats0
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
Citations
More filters
Journal ArticleDOI
Thermal performance enhancement of flat-plate solar collectors by means of three different nanofluids
TL;DR: In this paper, the effects on thermal efficiency of nanofluid and water as working fluids in flat-plate solar collector hot water solar energy systems were investigated, and the results indicated that the use of the nanoparticles increased collector efficiency when compared with water.
Journal ArticleDOI
Thermal Radiation Effect in MHD Flow of Powell—Eyring Nanofluid Induced by a Stretching Cylinder
TL;DR: In this paper, the steady magnetohydrodynamic boundary layer flow of Powell-Eyring nanofluid over a stretching cylinder is analyzed in the presence of thermal radiation, where variable temperature and concentration are assumed at the surface of cylinder.
Journal ArticleDOI
Influence of carbon nanotubes on nucleate pool boiling heat transfer characteristics of refrigerant–oil mixture
TL;DR: In this paper, the influence of carbon nanotubes (CNTs) on nucleate pool boiling heat transfer characteristics of refrigerant-oil mixture was investigated experimentally, and the experimental results indicated that the presence of CNTs enhances the nucleate-pool boiling-heat transfer coefficient by a maximum of 61% under the present test conditions.
Book ChapterDOI
Heat Transfer and Rheological Behaviour of Nanofluids – A Review
Haisheng Chen,Yulong Ding +1 more
TL;DR: In this article, a review of the transport properties of nanofluids in particular thermal conductivity and shear viscosity, and heat transfer of nanoparticles under convective and boiling conditions is presented.
Journal ArticleDOI
Experimental investigation of parameters affecting nanofluid effective thermal conductivity
TL;DR: In this paper, a two-step method with highly powered pulses similar to that for nanoparticle dispersion in base fluids was used for nanofluid effective thermal conductivity enhancements (ETCE).
References
More filters
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.
Book
A Treatise on Electricity and Magnetism
TL;DR: The most influential nineteenth-century scientist for twentieth-century physics, James Clerk Maxwell (1831-1879) demonstrated that electricity, magnetism and light are all manifestations of the same phenomenon: the electromagnetic field as discussed by the authors.
Book
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
Related Papers (5)
Investigation on Convective Heat Transfer and Flow Features of Nanofluids
Yimin Xuan,Qiang Li +1 more