Enhancing thermal conductivity of fluids with nano-particles
01 Jan 1995-Vol. 231, pp 99-105
About: The article was published on 1995-01-01 and is currently open access. It has received 7263 citations till now. The article focuses on the topics: Thermal conductivity & Nanoparticle.
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TL;DR: In this paper, a comprehensive overview of TES technologies using PCM throughout discharging and charging is presented, where the authors scrutinize the used techniques for augmenting performance for non-power plants and PCM applications, including extended surfaces, encapsulation, different ways of augmenting the thermal features, and applying of multiple PCMs.
98 citations
TL;DR: The characteristics of CHF enhancement in nanofluids are systemically presented according to the effects of the primary boiling parameters and attempts to explain the physical mechanism based on available CHF theories are described.
Abstract: Nanofluids (suspensions of nanometer-sized particles in base fluids) have recently been shown to have nucleate boiling critical heat flux (CHF) far superior to that of the pure base fluid. Over the past decade, numerous experimental and analytical studies on the nucleate boiling CHF of nanofluids have been conducted. The purpose of this article is to provide an exhaustive review of these studies. The characteristics of CHF enhancement in nanofluids are systemically presented according to the effects of the primary boiling parameters. Research efforts to identify the effects of nanoparticles underlying irregular enhancement phenomena of CHF in nanofluids are then presented. Also, attempts to explain the physical mechanism based on available CHF theories are described. Finally, future research needs are identified.
98 citations
Cites background from "Enhancing thermal conductivity of f..."
...Nanofluids originally attracted great interest because of their abnormally enhanced thermal conductivity [1]....
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TL;DR: In this article, an experimental study was conducted to investigate the pool boiling heat transfer of Fe3O4/water nanofluid (ferrofluid) in the atmospheric pressure.
97 citations
TL;DR: In this article, the heat and mass performances of couple stress nanofluid are captured with an evaluation of the famous Buongiorno model, which enables us to determine the attractive features of Brownian motion and thermophoretic diffusion.
Abstract: Abstract In order to meet the current challenges in the fabrication of nanobiomaterials and enhancement of thermal extrusion systems, current theoretical continuation is targeted at the rheology of couple stress nanofluid by exploiting activation energy, porous media, thermal radiation, gyrotactic micro-organisms, and convective Nield boundary conditions. The heat and mass performances of nanofluid are captured with an evaluation of the famous Buongiorno model, which enables us to determine the attractive features of Brownian motion and thermophoretic diffusion. The couple stress fluid is beneficial to examine multiple kinds of physical problems because this fluid model has the capability to describe the rheology of various complex fluids, e. g., fluids having long-chain molecules as a polymeric suspension, liquid crystals, lubricants, and human and animal blood. Simultaneous behavior of the magnetic field and porosity are studied with thermal radiation effects. The distribution of velocity has been conducted by using second-order velocity slip (Wu’s slip) and activation energy features. For the dimensionless purpose, the similarity variable has been initiated, and the modeled equations are renovated sufficiently. A famous shooting method is used to determine the numerical solutions, and accurate results have been obtained. A variety of critical flow parameters is graphically illustrated with physical significance.
97 citations
Cites background from "Enhancing thermal conductivity of f..."
...The leading ideaof nanofluidwas initially proposedbyChoi [4] in 1995, andmany investigators continued to explore the various thermo-physical features of nanoparticles....
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TL;DR: In this article, the zeta potentials of Al2O3 nano-fluids were measured and flow boiling CHF enhancement experiments were conducted under atmospheric pressure, and the CHF of nano-fluid was enhanced up to ∼70% in flow boiling for all experimental conditions.
97 citations