Journal ArticleDOI
Review of Heat Conduction in Nanofluids
Jing Fan,Liqiu Wang +1 more
Reads0
Chats0
TLDR
In this paper, a review of the thermal conductivity of nanofluids is presented, focusing on the experimental data, proposed mechanisms responsible for its enhancement, and its predicting models.Abstract:
Nanofluids—fluid suspensions of nanometer-sized particles—are a very important area of emerging technology and are playing an increasingly important role in the continuing advances of nanotechnology and biotechnology worldwide. They have enormously exciting potential applications and may revolutionize the field of heat transfer. This review is on the advances in our understanding of heat-conduction process in nanofluids. The emphasis centers on the thermal conductivity of nanofluids: its experimental data, proposed mechanisms responsible for its enhancement, and its predicting models. A relatively intensified effort has been made on determining thermal conductivity of nanofluids from experiments. While the detailed microstructure-conductivity relationship is still unknown, the data from these experiments have enabled some trends to be identified. Suggested microscopic reasons for the experimental finding of significant conductivity enhancement include the nanoparticle Brownian motion, the Brownian-motion-induced convection, the liquid layering at the liquid-particle interface, and the nanoparticle cluster/aggregate. Although there is a lack of agreement regarding the role of the first three effects, the last effect is generally accepted to be responsible for the reported conductivity enhancement. The available models of predicting conductivity of nanofluids all involve some empirical parameters that negate their predicting ability and application. The recently developed first-principles theory of thermal waves offers not only a macroscopic reason for experimental observations but also a model governing the microstructure-conductivity relationship without involving any empirical parameter.read more
Citations
More filters
Journal ArticleDOI
A review of the applications of nanofluids in solar energy
TL;DR: In this article, the authors investigated the effects of nanofluids on the performance of solar collectors and solar water heaters from the efficiency, economic and environmental considerations viewpoints, and made some suggestions to use the nanoparticles in different solar thermal systems such as photovoltaic/thermal systems, solar ponds, solar thermoelectric cells, and so on.
Journal Article
A Benchmark Study on the Thermal Conductivity of Nanofluids
Jacopo Buongiomo,David C. Venerus,Naveen Prabhat,Thomas J. McKrell,Jessica Townsend,Rebecca Christianson,Yuriv Tolmachev,Pawel Keblinski,Lin-Wen Hu,Jorge L. Alvarado,In Cheol Bang,Sandra Whaley Bishnoi,Marco Bonetti,Anselmo Cecere,Yun Chang,Gang Chen,Haisheng Chen,Sung Jae Chung,Minking K. Chyu,Sarit K. Das,Roberto Di Paola,Yulong Ding,Frank Dubois,Grzegorz Dzido,Jacob Eapen,Denis Funfschilling,Quentin Galand,Jinwei Gao,Patricia E. Gharagozloo,Kenneth E. Goodson,Jorge Gustavo Gutierrez,Haiping Hong,Mark Horton,Kyo Sik Hwang,Carlo Saverio Iorio,Seok Pil Jang,Andrzej B. Jarzębski,Yiran Jiang,Stephan Kabelac,Liwen Jin,Aravind Kamath,Chongyoup Kim,Ji Hyun Kim,Seokwon Kim,Seunghyun Lee,Kai Choong Leong,Indranil Manna,Rui Ni,Hrishikesh E. Patel,Cecil Reynaud,Raffaele Savino,Pawan Singh,Pengxiang Song,Thirumalachari Sundararajan,Alekzandr N Turanov,Stefan Van Vaerenbergh,Dongsheng Wen,Sanjeeva Witharana,Chun Yang,Wei-Hsun Yeh,Xiao-Zheng Zhao,Sheng-Qi Zhou +61 more
TL;DR: The International Nanofluid Property Benchmark Exercise (INPBE) as discussed by the authors was held in 1998, where the thermal conductivity of identical samples of colloidally stable dispersions of nanoparticles or "nanofluids" was measured by over 30 organizations worldwide, using a variety of experimental approaches, including the transient hot wire method, steady state methods, and optical methods.
Journal ArticleDOI
A review on hybrid nanofluids: Recent research, development and applications
TL;DR: In this paper, a review summarizes recent researches on synthesis, thermophysical properties, heat transfer and pressure drop characteristics, possible applications and challenges of hybrid nanofluids, and showed that proper hybridization may make the hybrid nanoparticles very promising for heat transfer enhancement, however, lot of research works are still needed in the fields of preparation and stability, characterization and applications to overcome the challenges.
Journal ArticleDOI
A review of entropy generation in nanofluid flow
Omid Mahian,Ali Kianifar,Clement Kleinstreuer,Moh'd A. Al-Nimr,Ioan Pop,Ahmet Z. Sahin,Somchai Wongwises +6 more
TL;DR: In this article, a review of the literature on entropy generation due to flow and heat transfer of nanofluids in different geometries and flow regimes is presented, and some suggestions for future work are presented.
Journal ArticleDOI
A review on thermophysical properties of nanofluids and heat transfer applications
TL;DR: In this article, the authors summarized the important results regarding the improvement in the thermophysical properties of nanofluids and identified the opportunities for future research in the field of nanophotonics.
References
More filters
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.
Journal ArticleDOI
Berechnung verschiedener physikalischer Konstanten von heterogenen Substanzen. I. Dielektrizitätskonstanten und Leitfähigkeiten der Mischkörper aus isotropen Substanzen
TL;DR: In this article, the Berechnung der dielektrizitatatkonstanten and der Leitfahigkeiten fur Elektriatitat and Warme der Mischkorper aus isotropen Bestandteilen behandelt.
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